context
stringlengths
21
33.9k
category
stringclasses
2 values
entity
stringlengths
1
12
entity_type
stringclasses
5 values
query
stringlengths
97
3.31k
answer
stringlengths
12
169
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Year Ended DecemberΒ 31,</td></tr><tr><td>​ ​</td><td></td><td>2024</td><td>​ ​</td><td>2023</td><td>​ ​</td><td>​ ​</td><td>2022</td><td></td></tr><tr><td>OPERATING REVENUES:</td><td>​ ​</td><td>​ ​</td><td></td><td></td><td>​ ​</td><td></td><td></td><td>​ ​</td><td></td><td>​ ​</td></tr><tr><td>Flying agreements</td><td>​ ​</td><td>$</td><td>3,412,798</td><td>​ ​</td><td>$</td><td>2,834,397</td><td>​ ​</td><td>$</td><td>2,899,837</td><td>​ ​</td></tr><tr><td>Lease, airport services and other</td><td>​ ​</td><td></td><td>115,122</td><td>​ ​</td><td></td><td>101,035</td><td>​ ​</td><td></td><td>105,088</td><td>​ ​</td></tr><tr><td>Total operating revenues</td><td>​ ​</td><td></td><td>3,527,920</td><td>​ ​</td><td></td><td>2,935,432</td><td>​ ​</td><td></td><td>3,004,925</td><td>​ ​</td></tr><tr><td>OPERATING EXPENSES:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Salaries, wages and benefits</td><td>​ ​</td><td></td><td>1,463,932</td><td>​ ​</td><td></td><td>1,322,615</td><td>​ ​</td><td></td><td>1,211,551</td><td>​ ​</td></tr><tr><td>Aircraft maintenance, materials and repairs</td><td>​ ​</td><td></td><td>712,642</td><td>​ ​</td><td></td><td>673,453</td><td>​ ​</td><td></td><td>644,157</td><td>​ ​</td></tr><tr><td>Depreciation and amortization</td><td>​ ​</td><td></td><td>383,880</td><td>​ ​</td><td></td><td>383,115</td><td>​ ​</td><td></td><td>394,552</td><td>​ ​</td></tr><tr><td>Aircraft fuel</td><td>​ ​</td><td></td><td>87,409</td><td>​ ​</td><td></td><td>85,913</td><td>​ ​</td><td></td><td>108,456</td><td>​ ​</td></tr><tr><td>Airport-related expenses</td><td>​ ​</td><td></td><td>85,836</td><td>​ ​</td><td></td><td>72,640</td><td>​ ​</td><td></td><td>71,549</td><td>​ ​</td></tr><tr><td>Aircraft rentals</td><td>​ ​</td><td></td><td>5,257</td><td>​ ​</td><td></td><td>25,507</td><td>​ ​</td><td></td><td>75,353</td><td>​ ​</td></tr><tr><td>Other operating expenses</td><td>​ ​</td><td></td><td>294,307</td><td>​ ​</td><td></td><td>268,120</td><td>​ ​</td><td></td><td>318,145</td><td>​ ​</td></tr><tr><td>Total operating expenses</td><td>​ ​</td><td></td><td>3,033,263</td><td>​ ​</td><td></td><td>2,831,363</td><td>​ ​</td><td></td><td>2,823,763</td><td>​ ​</td></tr><tr><td>OPERATING INCOME</td><td>​ ​</td><td></td><td>494,657</td><td>​ ​</td><td></td><td>104,069</td><td>​ ​</td><td></td><td>181,162</td><td>​ ​</td></tr><tr><td>OTHER INCOME (EXPENSE):</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Interest income</td><td>​ ​</td><td></td><td>47,961</td><td>​ ​</td><td></td><td>43,928</td><td>​ ​</td><td></td><td>17,605</td><td>​ ​</td></tr><tr><td>Interest expense</td><td>​ ​</td><td></td><td>( 114,340 )</td><td>​ ​</td><td></td><td>( 130,930 )</td><td>​ ​</td><td></td><td>( 127,083 )</td><td>​ ​</td></tr><tr><td>Other income, net</td><td>​ ​</td><td></td><td>3,865</td><td>​ ​</td><td></td><td>23,242</td><td>​ ​</td><td></td><td>20,899</td><td>​ ​</td></tr><tr><td>Total other expense, net</td><td>​ ​</td><td></td><td>( 62,514 )</td><td>​ ​</td><td></td><td>( 63,760 )</td><td>​ ​</td><td></td><td>( 88,579 )</td><td>​ ​</td></tr><tr><td>INCOME BEFORE INCOME TAXES</td><td>​ ​</td><td></td><td>432,143</td><td>​ ​</td><td></td><td>40,309</td><td>​ ​</td><td></td><td>92,583</td><td>​ ​</td></tr><tr><td>PROVISION FOR INCOME TAXES</td><td>​ ​</td><td></td><td>109,181</td><td>​ ​</td><td></td><td>5,967</td><td>​ ​</td><td></td><td>19,630</td><td>​ ​</td></tr><tr><td>NET INCOME</td><td>​ ​</td><td>$</td><td>322,962</td><td>​ ​</td><td>$</td><td>34,342</td><td>​ ​</td><td>$</td><td>72,953</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>BASIC EARNINGS PER SHARE</td><td>​ ​</td><td>$</td><td>8.02</td><td>​ ​</td><td>$</td><td>0.78</td><td>​ ​</td><td>$</td><td>1.44</td><td>​ ​</td></tr><tr><td>DILUTED EARNINGS PER SHARE</td><td>​ ​</td><td>$</td><td>7.77</td><td>​ ​</td><td>$</td><td>0.77</td><td>​ ​</td><td>$</td><td>1.44</td><td>​ ​</td></tr><tr><td>Weighted average common shares:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Basic</td><td>​ ​</td><td></td><td>40,262</td><td>​ ​</td><td></td><td>43,940</td><td>​ ​</td><td></td><td>50,548</td><td>​ ​</td></tr><tr><td>Diluted</td><td>​ ​</td><td></td><td>41,547</td><td>​ ​</td><td></td><td>44,599</td><td>​ ​</td><td></td><td>50,644</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>COMPREHENSIVE INCOME:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Net income</td><td>​ ​</td><td>$</td><td>322,962</td><td>​ ​</td><td>$</td><td>34,342</td><td>​ ​</td><td>$</td><td>72,953</td><td>​ ​</td></tr><tr><td>Net unrealized appreciation (depreciation) on marketable securities, net ofΒ taxes</td><td>​ ​</td><td></td><td>( 157 )</td><td>​ ​</td><td></td><td>4,127</td><td>​ ​</td><td></td><td>( 3,802 )</td><td>​ ​</td></tr><tr><td>TOTAL COMPREHENSIVE INCOME</td><td>​ ​</td><td>$</td><td>322,805</td><td>​ ​</td><td>$</td><td>38,469</td><td>​ ​</td><td>$</td><td>69,151</td><td>​ ​</td></tr></table>
table
19630
monetaryItemType
table: <entity> 19630 </entity> <entity type> monetaryItemType </entity type> <context> PROVISION FOR INCOME TAXES | ​ ​ | 109,181 | ​ ​ | 5,967 | ​ ​ | 19,630 | ​ ​ </context>
us-gaap:IncomeTaxExpenseBenefit
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Year Ended DecemberΒ 31,</td></tr><tr><td>​ ​</td><td></td><td>2024</td><td>​ ​</td><td>2023</td><td>​ ​</td><td>​ ​</td><td>2022</td><td></td></tr><tr><td>OPERATING REVENUES:</td><td>​ ​</td><td>​ ​</td><td></td><td></td><td>​ ​</td><td></td><td></td><td>​ ​</td><td></td><td>​ ​</td></tr><tr><td>Flying agreements</td><td>​ ​</td><td>$</td><td>3,412,798</td><td>​ ​</td><td>$</td><td>2,834,397</td><td>​ ​</td><td>$</td><td>2,899,837</td><td>​ ​</td></tr><tr><td>Lease, airport services and other</td><td>​ ​</td><td></td><td>115,122</td><td>​ ​</td><td></td><td>101,035</td><td>​ ​</td><td></td><td>105,088</td><td>​ ​</td></tr><tr><td>Total operating revenues</td><td>​ ​</td><td></td><td>3,527,920</td><td>​ ​</td><td></td><td>2,935,432</td><td>​ ​</td><td></td><td>3,004,925</td><td>​ ​</td></tr><tr><td>OPERATING EXPENSES:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Salaries, wages and benefits</td><td>​ ​</td><td></td><td>1,463,932</td><td>​ ​</td><td></td><td>1,322,615</td><td>​ ​</td><td></td><td>1,211,551</td><td>​ ​</td></tr><tr><td>Aircraft maintenance, materials and repairs</td><td>​ ​</td><td></td><td>712,642</td><td>​ ​</td><td></td><td>673,453</td><td>​ ​</td><td></td><td>644,157</td><td>​ ​</td></tr><tr><td>Depreciation and amortization</td><td>​ ​</td><td></td><td>383,880</td><td>​ ​</td><td></td><td>383,115</td><td>​ ​</td><td></td><td>394,552</td><td>​ ​</td></tr><tr><td>Aircraft fuel</td><td>​ ​</td><td></td><td>87,409</td><td>​ ​</td><td></td><td>85,913</td><td>​ ​</td><td></td><td>108,456</td><td>​ ​</td></tr><tr><td>Airport-related expenses</td><td>​ ​</td><td></td><td>85,836</td><td>​ ​</td><td></td><td>72,640</td><td>​ ​</td><td></td><td>71,549</td><td>​ ​</td></tr><tr><td>Aircraft rentals</td><td>​ ​</td><td></td><td>5,257</td><td>​ ​</td><td></td><td>25,507</td><td>​ ​</td><td></td><td>75,353</td><td>​ ​</td></tr><tr><td>Other operating expenses</td><td>​ ​</td><td></td><td>294,307</td><td>​ ​</td><td></td><td>268,120</td><td>​ ​</td><td></td><td>318,145</td><td>​ ​</td></tr><tr><td>Total operating expenses</td><td>​ ​</td><td></td><td>3,033,263</td><td>​ ​</td><td></td><td>2,831,363</td><td>​ ​</td><td></td><td>2,823,763</td><td>​ ​</td></tr><tr><td>OPERATING INCOME</td><td>​ ​</td><td></td><td>494,657</td><td>​ ​</td><td></td><td>104,069</td><td>​ ​</td><td></td><td>181,162</td><td>​ ​</td></tr><tr><td>OTHER INCOME (EXPENSE):</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Interest income</td><td>​ ​</td><td></td><td>47,961</td><td>​ ​</td><td></td><td>43,928</td><td>​ ​</td><td></td><td>17,605</td><td>​ ​</td></tr><tr><td>Interest expense</td><td>​ ​</td><td></td><td>( 114,340 )</td><td>​ ​</td><td></td><td>( 130,930 )</td><td>​ ​</td><td></td><td>( 127,083 )</td><td>​ ​</td></tr><tr><td>Other income, net</td><td>​ ​</td><td></td><td>3,865</td><td>​ ​</td><td></td><td>23,242</td><td>​ ​</td><td></td><td>20,899</td><td>​ ​</td></tr><tr><td>Total other expense, net</td><td>​ ​</td><td></td><td>( 62,514 )</td><td>​ ​</td><td></td><td>( 63,760 )</td><td>​ ​</td><td></td><td>( 88,579 )</td><td>​ ​</td></tr><tr><td>INCOME BEFORE INCOME TAXES</td><td>​ ​</td><td></td><td>432,143</td><td>​ ​</td><td></td><td>40,309</td><td>​ ​</td><td></td><td>92,583</td><td>​ ​</td></tr><tr><td>PROVISION FOR INCOME TAXES</td><td>​ ​</td><td></td><td>109,181</td><td>​ ​</td><td></td><td>5,967</td><td>​ ​</td><td></td><td>19,630</td><td>​ ​</td></tr><tr><td>NET INCOME</td><td>​ ​</td><td>$</td><td>322,962</td><td>​ ​</td><td>$</td><td>34,342</td><td>​ ​</td><td>$</td><td>72,953</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>BASIC EARNINGS PER SHARE</td><td>​ ​</td><td>$</td><td>8.02</td><td>​ ​</td><td>$</td><td>0.78</td><td>​ ​</td><td>$</td><td>1.44</td><td>​ ​</td></tr><tr><td>DILUTED EARNINGS PER SHARE</td><td>​ ​</td><td>$</td><td>7.77</td><td>​ ​</td><td>$</td><td>0.77</td><td>​ ​</td><td>$</td><td>1.44</td><td>​ ​</td></tr><tr><td>Weighted average common shares:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Basic</td><td>​ ​</td><td></td><td>40,262</td><td>​ ​</td><td></td><td>43,940</td><td>​ ​</td><td></td><td>50,548</td><td>​ ​</td></tr><tr><td>Diluted</td><td>​ ​</td><td></td><td>41,547</td><td>​ ​</td><td></td><td>44,599</td><td>​ ​</td><td></td><td>50,644</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>COMPREHENSIVE INCOME:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Net income</td><td>​ ​</td><td>$</td><td>322,962</td><td>​ ​</td><td>$</td><td>34,342</td><td>​ ​</td><td>$</td><td>72,953</td><td>​ ​</td></tr><tr><td>Net unrealized appreciation (depreciation) on marketable securities, net ofΒ taxes</td><td>​ ​</td><td></td><td>( 157 )</td><td>​ ​</td><td></td><td>4,127</td><td>​ ​</td><td></td><td>( 3,802 )</td><td>​ ​</td></tr><tr><td>TOTAL COMPREHENSIVE INCOME</td><td>​ ​</td><td>$</td><td>322,805</td><td>​ ​</td><td>$</td><td>38,469</td><td>​ ​</td><td>$</td><td>69,151</td><td>​ ​</td></tr></table>
table
322962
monetaryItemType
table: <entity> 322962 </entity> <entity type> monetaryItemType </entity type> <context> NET INCOME | ​ ​ | $ | 322,962 | ​ ​ | $ | 34,342 | ​ ​ | $ | 72,953 | ​ ​ </context>
us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Year Ended DecemberΒ 31,</td></tr><tr><td>​ ​</td><td></td><td>2024</td><td>​ ​</td><td>2023</td><td>​ ​</td><td>​ ​</td><td>2022</td><td></td></tr><tr><td>OPERATING REVENUES:</td><td>​ ​</td><td>​ ​</td><td></td><td></td><td>​ ​</td><td></td><td></td><td>​ ​</td><td></td><td>​ ​</td></tr><tr><td>Flying agreements</td><td>​ ​</td><td>$</td><td>3,412,798</td><td>​ ​</td><td>$</td><td>2,834,397</td><td>​ ​</td><td>$</td><td>2,899,837</td><td>​ ​</td></tr><tr><td>Lease, airport services and other</td><td>​ ​</td><td></td><td>115,122</td><td>​ ​</td><td></td><td>101,035</td><td>​ ​</td><td></td><td>105,088</td><td>​ ​</td></tr><tr><td>Total operating revenues</td><td>​ ​</td><td></td><td>3,527,920</td><td>​ ​</td><td></td><td>2,935,432</td><td>​ ​</td><td></td><td>3,004,925</td><td>​ ​</td></tr><tr><td>OPERATING EXPENSES:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Salaries, wages and benefits</td><td>​ ​</td><td></td><td>1,463,932</td><td>​ ​</td><td></td><td>1,322,615</td><td>​ ​</td><td></td><td>1,211,551</td><td>​ ​</td></tr><tr><td>Aircraft maintenance, materials and repairs</td><td>​ ​</td><td></td><td>712,642</td><td>​ ​</td><td></td><td>673,453</td><td>​ ​</td><td></td><td>644,157</td><td>​ ​</td></tr><tr><td>Depreciation and amortization</td><td>​ ​</td><td></td><td>383,880</td><td>​ ​</td><td></td><td>383,115</td><td>​ ​</td><td></td><td>394,552</td><td>​ ​</td></tr><tr><td>Aircraft fuel</td><td>​ ​</td><td></td><td>87,409</td><td>​ ​</td><td></td><td>85,913</td><td>​ ​</td><td></td><td>108,456</td><td>​ ​</td></tr><tr><td>Airport-related expenses</td><td>​ ​</td><td></td><td>85,836</td><td>​ ​</td><td></td><td>72,640</td><td>​ ​</td><td></td><td>71,549</td><td>​ ​</td></tr><tr><td>Aircraft rentals</td><td>​ ​</td><td></td><td>5,257</td><td>​ ​</td><td></td><td>25,507</td><td>​ ​</td><td></td><td>75,353</td><td>​ ​</td></tr><tr><td>Other operating expenses</td><td>​ ​</td><td></td><td>294,307</td><td>​ ​</td><td></td><td>268,120</td><td>​ ​</td><td></td><td>318,145</td><td>​ ​</td></tr><tr><td>Total operating expenses</td><td>​ ​</td><td></td><td>3,033,263</td><td>​ ​</td><td></td><td>2,831,363</td><td>​ ​</td><td></td><td>2,823,763</td><td>​ ​</td></tr><tr><td>OPERATING INCOME</td><td>​ ​</td><td></td><td>494,657</td><td>​ ​</td><td></td><td>104,069</td><td>​ ​</td><td></td><td>181,162</td><td>​ ​</td></tr><tr><td>OTHER INCOME (EXPENSE):</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Interest income</td><td>​ ​</td><td></td><td>47,961</td><td>​ ​</td><td></td><td>43,928</td><td>​ ​</td><td></td><td>17,605</td><td>​ ​</td></tr><tr><td>Interest expense</td><td>​ ​</td><td></td><td>( 114,340 )</td><td>​ ​</td><td></td><td>( 130,930 )</td><td>​ ​</td><td></td><td>( 127,083 )</td><td>​ ​</td></tr><tr><td>Other income, net</td><td>​ ​</td><td></td><td>3,865</td><td>​ ​</td><td></td><td>23,242</td><td>​ ​</td><td></td><td>20,899</td><td>​ ​</td></tr><tr><td>Total other expense, net</td><td>​ ​</td><td></td><td>( 62,514 )</td><td>​ ​</td><td></td><td>( 63,760 )</td><td>​ ​</td><td></td><td>( 88,579 )</td><td>​ ​</td></tr><tr><td>INCOME BEFORE INCOME TAXES</td><td>​ ​</td><td></td><td>432,143</td><td>​ ​</td><td></td><td>40,309</td><td>​ ​</td><td></td><td>92,583</td><td>​ ​</td></tr><tr><td>PROVISION FOR INCOME TAXES</td><td>​ ​</td><td></td><td>109,181</td><td>​ ​</td><td></td><td>5,967</td><td>​ ​</td><td></td><td>19,630</td><td>​ ​</td></tr><tr><td>NET INCOME</td><td>​ ​</td><td>$</td><td>322,962</td><td>​ ​</td><td>$</td><td>34,342</td><td>​ ​</td><td>$</td><td>72,953</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>BASIC EARNINGS PER SHARE</td><td>​ ​</td><td>$</td><td>8.02</td><td>​ ​</td><td>$</td><td>0.78</td><td>​ ​</td><td>$</td><td>1.44</td><td>​ ​</td></tr><tr><td>DILUTED EARNINGS PER SHARE</td><td>​ ​</td><td>$</td><td>7.77</td><td>​ ​</td><td>$</td><td>0.77</td><td>​ ​</td><td>$</td><td>1.44</td><td>​ ​</td></tr><tr><td>Weighted average common shares:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Basic</td><td>​ ​</td><td></td><td>40,262</td><td>​ ​</td><td></td><td>43,940</td><td>​ ​</td><td></td><td>50,548</td><td>​ ​</td></tr><tr><td>Diluted</td><td>​ ​</td><td></td><td>41,547</td><td>​ ​</td><td></td><td>44,599</td><td>​ ​</td><td></td><td>50,644</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>COMPREHENSIVE INCOME:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Net income</td><td>​ ​</td><td>$</td><td>322,962</td><td>​ ​</td><td>$</td><td>34,342</td><td>​ ​</td><td>$</td><td>72,953</td><td>​ ​</td></tr><tr><td>Net unrealized appreciation (depreciation) on marketable securities, net ofΒ taxes</td><td>​ ​</td><td></td><td>( 157 )</td><td>​ ​</td><td></td><td>4,127</td><td>​ ​</td><td></td><td>( 3,802 )</td><td>​ ​</td></tr><tr><td>TOTAL COMPREHENSIVE INCOME</td><td>​ ​</td><td>$</td><td>322,805</td><td>​ ​</td><td>$</td><td>38,469</td><td>​ ​</td><td>$</td><td>69,151</td><td>​ ​</td></tr></table>
table
34342
monetaryItemType
table: <entity> 34342 </entity> <entity type> monetaryItemType </entity type> <context> NET INCOME | ​ ​ | $ | 322,962 | ​ ​ | $ | 34,342 | ​ ​ | $ | 72,953 | ​ ​ </context>
us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Year Ended DecemberΒ 31,</td></tr><tr><td>​ ​</td><td></td><td>2024</td><td>​ ​</td><td>2023</td><td>​ ​</td><td>​ ​</td><td>2022</td><td></td></tr><tr><td>OPERATING REVENUES:</td><td>​ ​</td><td>​ ​</td><td></td><td></td><td>​ ​</td><td></td><td></td><td>​ ​</td><td></td><td>​ ​</td></tr><tr><td>Flying agreements</td><td>​ ​</td><td>$</td><td>3,412,798</td><td>​ ​</td><td>$</td><td>2,834,397</td><td>​ ​</td><td>$</td><td>2,899,837</td><td>​ ​</td></tr><tr><td>Lease, airport services and other</td><td>​ ​</td><td></td><td>115,122</td><td>​ ​</td><td></td><td>101,035</td><td>​ ​</td><td></td><td>105,088</td><td>​ ​</td></tr><tr><td>Total operating revenues</td><td>​ ​</td><td></td><td>3,527,920</td><td>​ ​</td><td></td><td>2,935,432</td><td>​ ​</td><td></td><td>3,004,925</td><td>​ ​</td></tr><tr><td>OPERATING EXPENSES:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Salaries, wages and benefits</td><td>​ ​</td><td></td><td>1,463,932</td><td>​ ​</td><td></td><td>1,322,615</td><td>​ ​</td><td></td><td>1,211,551</td><td>​ ​</td></tr><tr><td>Aircraft maintenance, materials and repairs</td><td>​ ​</td><td></td><td>712,642</td><td>​ ​</td><td></td><td>673,453</td><td>​ ​</td><td></td><td>644,157</td><td>​ ​</td></tr><tr><td>Depreciation and amortization</td><td>​ ​</td><td></td><td>383,880</td><td>​ ​</td><td></td><td>383,115</td><td>​ ​</td><td></td><td>394,552</td><td>​ ​</td></tr><tr><td>Aircraft fuel</td><td>​ ​</td><td></td><td>87,409</td><td>​ ​</td><td></td><td>85,913</td><td>​ ​</td><td></td><td>108,456</td><td>​ ​</td></tr><tr><td>Airport-related expenses</td><td>​ ​</td><td></td><td>85,836</td><td>​ ​</td><td></td><td>72,640</td><td>​ ​</td><td></td><td>71,549</td><td>​ ​</td></tr><tr><td>Aircraft rentals</td><td>​ ​</td><td></td><td>5,257</td><td>​ ​</td><td></td><td>25,507</td><td>​ ​</td><td></td><td>75,353</td><td>​ ​</td></tr><tr><td>Other operating expenses</td><td>​ ​</td><td></td><td>294,307</td><td>​ ​</td><td></td><td>268,120</td><td>​ ​</td><td></td><td>318,145</td><td>​ ​</td></tr><tr><td>Total operating expenses</td><td>​ ​</td><td></td><td>3,033,263</td><td>​ ​</td><td></td><td>2,831,363</td><td>​ ​</td><td></td><td>2,823,763</td><td>​ ​</td></tr><tr><td>OPERATING INCOME</td><td>​ ​</td><td></td><td>494,657</td><td>​ ​</td><td></td><td>104,069</td><td>​ ​</td><td></td><td>181,162</td><td>​ ​</td></tr><tr><td>OTHER INCOME (EXPENSE):</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Interest income</td><td>​ ​</td><td></td><td>47,961</td><td>​ ​</td><td></td><td>43,928</td><td>​ ​</td><td></td><td>17,605</td><td>​ ​</td></tr><tr><td>Interest expense</td><td>​ ​</td><td></td><td>( 114,340 )</td><td>​ ​</td><td></td><td>( 130,930 )</td><td>​ ​</td><td></td><td>( 127,083 )</td><td>​ ​</td></tr><tr><td>Other income, net</td><td>​ ​</td><td></td><td>3,865</td><td>​ ​</td><td></td><td>23,242</td><td>​ ​</td><td></td><td>20,899</td><td>​ ​</td></tr><tr><td>Total other expense, net</td><td>​ ​</td><td></td><td>( 62,514 )</td><td>​ ​</td><td></td><td>( 63,760 )</td><td>​ ​</td><td></td><td>( 88,579 )</td><td>​ ​</td></tr><tr><td>INCOME BEFORE INCOME TAXES</td><td>​ ​</td><td></td><td>432,143</td><td>​ ​</td><td></td><td>40,309</td><td>​ ​</td><td></td><td>92,583</td><td>​ ​</td></tr><tr><td>PROVISION FOR INCOME TAXES</td><td>​ ​</td><td></td><td>109,181</td><td>​ ​</td><td></td><td>5,967</td><td>​ ​</td><td></td><td>19,630</td><td>​ ​</td></tr><tr><td>NET INCOME</td><td>​ ​</td><td>$</td><td>322,962</td><td>​ ​</td><td>$</td><td>34,342</td><td>​ ​</td><td>$</td><td>72,953</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>BASIC EARNINGS PER SHARE</td><td>​ ​</td><td>$</td><td>8.02</td><td>​ ​</td><td>$</td><td>0.78</td><td>​ ​</td><td>$</td><td>1.44</td><td>​ ​</td></tr><tr><td>DILUTED EARNINGS PER SHARE</td><td>​ ​</td><td>$</td><td>7.77</td><td>​ ​</td><td>$</td><td>0.77</td><td>​ ​</td><td>$</td><td>1.44</td><td>​ ​</td></tr><tr><td>Weighted average common shares:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Basic</td><td>​ ​</td><td></td><td>40,262</td><td>​ ​</td><td></td><td>43,940</td><td>​ ​</td><td></td><td>50,548</td><td>​ ​</td></tr><tr><td>Diluted</td><td>​ ​</td><td></td><td>41,547</td><td>​ ​</td><td></td><td>44,599</td><td>​ ​</td><td></td><td>50,644</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>COMPREHENSIVE INCOME:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Net income</td><td>​ ​</td><td>$</td><td>322,962</td><td>​ ​</td><td>$</td><td>34,342</td><td>​ ​</td><td>$</td><td>72,953</td><td>​ ​</td></tr><tr><td>Net unrealized appreciation (depreciation) on marketable securities, net ofΒ taxes</td><td>​ ​</td><td></td><td>( 157 )</td><td>​ ​</td><td></td><td>4,127</td><td>​ ​</td><td></td><td>( 3,802 )</td><td>​ ​</td></tr><tr><td>TOTAL COMPREHENSIVE INCOME</td><td>​ ​</td><td>$</td><td>322,805</td><td>​ ​</td><td>$</td><td>38,469</td><td>​ ​</td><td>$</td><td>69,151</td><td>​ ​</td></tr></table>
table
72953
monetaryItemType
table: <entity> 72953 </entity> <entity type> monetaryItemType </entity type> <context> NET INCOME | ​ ​ | $ | 322,962 | ​ ​ | $ | 34,342 | ​ ​ | $ | 72,953 | ​ ​ </context>
us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Year Ended DecemberΒ 31,</td></tr><tr><td>​ ​</td><td></td><td>2024</td><td>​ ​</td><td>2023</td><td>​ ​</td><td>​ ​</td><td>2022</td><td></td></tr><tr><td>OPERATING REVENUES:</td><td>​ ​</td><td>​ ​</td><td></td><td></td><td>​ ​</td><td></td><td></td><td>​ ​</td><td></td><td>​ ​</td></tr><tr><td>Flying agreements</td><td>​ ​</td><td>$</td><td>3,412,798</td><td>​ ​</td><td>$</td><td>2,834,397</td><td>​ ​</td><td>$</td><td>2,899,837</td><td>​ ​</td></tr><tr><td>Lease, airport services and other</td><td>​ ​</td><td></td><td>115,122</td><td>​ ​</td><td></td><td>101,035</td><td>​ ​</td><td></td><td>105,088</td><td>​ ​</td></tr><tr><td>Total operating revenues</td><td>​ ​</td><td></td><td>3,527,920</td><td>​ ​</td><td></td><td>2,935,432</td><td>​ ​</td><td></td><td>3,004,925</td><td>​ ​</td></tr><tr><td>OPERATING EXPENSES:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Salaries, wages and benefits</td><td>​ ​</td><td></td><td>1,463,932</td><td>​ ​</td><td></td><td>1,322,615</td><td>​ ​</td><td></td><td>1,211,551</td><td>​ ​</td></tr><tr><td>Aircraft maintenance, materials and repairs</td><td>​ ​</td><td></td><td>712,642</td><td>​ ​</td><td></td><td>673,453</td><td>​ ​</td><td></td><td>644,157</td><td>​ ​</td></tr><tr><td>Depreciation and amortization</td><td>​ ​</td><td></td><td>383,880</td><td>​ ​</td><td></td><td>383,115</td><td>​ ​</td><td></td><td>394,552</td><td>​ ​</td></tr><tr><td>Aircraft fuel</td><td>​ ​</td><td></td><td>87,409</td><td>​ ​</td><td></td><td>85,913</td><td>​ ​</td><td></td><td>108,456</td><td>​ ​</td></tr><tr><td>Airport-related expenses</td><td>​ ​</td><td></td><td>85,836</td><td>​ ​</td><td></td><td>72,640</td><td>​ ​</td><td></td><td>71,549</td><td>​ ​</td></tr><tr><td>Aircraft rentals</td><td>​ ​</td><td></td><td>5,257</td><td>​ ​</td><td></td><td>25,507</td><td>​ ​</td><td></td><td>75,353</td><td>​ ​</td></tr><tr><td>Other operating expenses</td><td>​ ​</td><td></td><td>294,307</td><td>​ ​</td><td></td><td>268,120</td><td>​ ​</td><td></td><td>318,145</td><td>​ ​</td></tr><tr><td>Total operating expenses</td><td>​ ​</td><td></td><td>3,033,263</td><td>​ ​</td><td></td><td>2,831,363</td><td>​ ​</td><td></td><td>2,823,763</td><td>​ ​</td></tr><tr><td>OPERATING INCOME</td><td>​ ​</td><td></td><td>494,657</td><td>​ ​</td><td></td><td>104,069</td><td>​ ​</td><td></td><td>181,162</td><td>​ ​</td></tr><tr><td>OTHER INCOME (EXPENSE):</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Interest income</td><td>​ ​</td><td></td><td>47,961</td><td>​ ​</td><td></td><td>43,928</td><td>​ ​</td><td></td><td>17,605</td><td>​ ​</td></tr><tr><td>Interest expense</td><td>​ ​</td><td></td><td>( 114,340 )</td><td>​ ​</td><td></td><td>( 130,930 )</td><td>​ ​</td><td></td><td>( 127,083 )</td><td>​ ​</td></tr><tr><td>Other income, net</td><td>​ ​</td><td></td><td>3,865</td><td>​ ​</td><td></td><td>23,242</td><td>​ ​</td><td></td><td>20,899</td><td>​ ​</td></tr><tr><td>Total other expense, net</td><td>​ ​</td><td></td><td>( 62,514 )</td><td>​ ​</td><td></td><td>( 63,760 )</td><td>​ ​</td><td></td><td>( 88,579 )</td><td>​ ​</td></tr><tr><td>INCOME BEFORE INCOME TAXES</td><td>​ ​</td><td></td><td>432,143</td><td>​ ​</td><td></td><td>40,309</td><td>​ ​</td><td></td><td>92,583</td><td>​ ​</td></tr><tr><td>PROVISION FOR INCOME TAXES</td><td>​ ​</td><td></td><td>109,181</td><td>​ ​</td><td></td><td>5,967</td><td>​ ​</td><td></td><td>19,630</td><td>​ ​</td></tr><tr><td>NET INCOME</td><td>​ ​</td><td>$</td><td>322,962</td><td>​ ​</td><td>$</td><td>34,342</td><td>​ ​</td><td>$</td><td>72,953</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>BASIC EARNINGS PER SHARE</td><td>​ ​</td><td>$</td><td>8.02</td><td>​ ​</td><td>$</td><td>0.78</td><td>​ ​</td><td>$</td><td>1.44</td><td>​ ​</td></tr><tr><td>DILUTED EARNINGS PER SHARE</td><td>​ ​</td><td>$</td><td>7.77</td><td>​ ​</td><td>$</td><td>0.77</td><td>​ ​</td><td>$</td><td>1.44</td><td>​ ​</td></tr><tr><td>Weighted average common shares:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Basic</td><td>​ ​</td><td></td><td>40,262</td><td>​ ​</td><td></td><td>43,940</td><td>​ ​</td><td></td><td>50,548</td><td>​ ​</td></tr><tr><td>Diluted</td><td>​ ​</td><td></td><td>41,547</td><td>​ ​</td><td></td><td>44,599</td><td>​ ​</td><td></td><td>50,644</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>COMPREHENSIVE INCOME:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Net income</td><td>​ ​</td><td>$</td><td>322,962</td><td>​ ​</td><td>$</td><td>34,342</td><td>​ ​</td><td>$</td><td>72,953</td><td>​ ​</td></tr><tr><td>Net unrealized appreciation (depreciation) on marketable securities, net ofΒ taxes</td><td>​ ​</td><td></td><td>( 157 )</td><td>​ ​</td><td></td><td>4,127</td><td>​ ​</td><td></td><td>( 3,802 )</td><td>​ ​</td></tr><tr><td>TOTAL COMPREHENSIVE INCOME</td><td>​ ​</td><td>$</td><td>322,805</td><td>​ ​</td><td>$</td><td>38,469</td><td>​ ​</td><td>$</td><td>69,151</td><td>​ ​</td></tr></table>
table
8.02
perShareItemType
table: <entity> 8.02 </entity> <entity type> perShareItemType </entity type> <context> BASIC EARNINGS PER SHARE | ​ ​ | $ | 8.02 | ​ ​ | $ | 0.78 | ​ ​ | $ | 1.44 | ​ ​ </context>
us-gaap:EarningsPerShareBasic
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Year Ended DecemberΒ 31,</td></tr><tr><td>​ ​</td><td></td><td>2024</td><td>​ ​</td><td>2023</td><td>​ ​</td><td>​ ​</td><td>2022</td><td></td></tr><tr><td>OPERATING REVENUES:</td><td>​ ​</td><td>​ ​</td><td></td><td></td><td>​ ​</td><td></td><td></td><td>​ ​</td><td></td><td>​ ​</td></tr><tr><td>Flying agreements</td><td>​ ​</td><td>$</td><td>3,412,798</td><td>​ ​</td><td>$</td><td>2,834,397</td><td>​ ​</td><td>$</td><td>2,899,837</td><td>​ ​</td></tr><tr><td>Lease, airport services and other</td><td>​ ​</td><td></td><td>115,122</td><td>​ ​</td><td></td><td>101,035</td><td>​ ​</td><td></td><td>105,088</td><td>​ ​</td></tr><tr><td>Total operating revenues</td><td>​ ​</td><td></td><td>3,527,920</td><td>​ ​</td><td></td><td>2,935,432</td><td>​ ​</td><td></td><td>3,004,925</td><td>​ ​</td></tr><tr><td>OPERATING EXPENSES:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Salaries, wages and benefits</td><td>​ ​</td><td></td><td>1,463,932</td><td>​ ​</td><td></td><td>1,322,615</td><td>​ ​</td><td></td><td>1,211,551</td><td>​ ​</td></tr><tr><td>Aircraft maintenance, materials and repairs</td><td>​ ​</td><td></td><td>712,642</td><td>​ ​</td><td></td><td>673,453</td><td>​ ​</td><td></td><td>644,157</td><td>​ ​</td></tr><tr><td>Depreciation and amortization</td><td>​ ​</td><td></td><td>383,880</td><td>​ ​</td><td></td><td>383,115</td><td>​ ​</td><td></td><td>394,552</td><td>​ ​</td></tr><tr><td>Aircraft fuel</td><td>​ ​</td><td></td><td>87,409</td><td>​ ​</td><td></td><td>85,913</td><td>​ ​</td><td></td><td>108,456</td><td>​ ​</td></tr><tr><td>Airport-related expenses</td><td>​ ​</td><td></td><td>85,836</td><td>​ ​</td><td></td><td>72,640</td><td>​ ​</td><td></td><td>71,549</td><td>​ ​</td></tr><tr><td>Aircraft rentals</td><td>​ ​</td><td></td><td>5,257</td><td>​ ​</td><td></td><td>25,507</td><td>​ ​</td><td></td><td>75,353</td><td>​ ​</td></tr><tr><td>Other operating expenses</td><td>​ ​</td><td></td><td>294,307</td><td>​ ​</td><td></td><td>268,120</td><td>​ ​</td><td></td><td>318,145</td><td>​ ​</td></tr><tr><td>Total operating expenses</td><td>​ ​</td><td></td><td>3,033,263</td><td>​ ​</td><td></td><td>2,831,363</td><td>​ ​</td><td></td><td>2,823,763</td><td>​ ​</td></tr><tr><td>OPERATING INCOME</td><td>​ ​</td><td></td><td>494,657</td><td>​ ​</td><td></td><td>104,069</td><td>​ ​</td><td></td><td>181,162</td><td>​ ​</td></tr><tr><td>OTHER INCOME (EXPENSE):</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Interest income</td><td>​ ​</td><td></td><td>47,961</td><td>​ ​</td><td></td><td>43,928</td><td>​ ​</td><td></td><td>17,605</td><td>​ ​</td></tr><tr><td>Interest expense</td><td>​ ​</td><td></td><td>( 114,340 )</td><td>​ ​</td><td></td><td>( 130,930 )</td><td>​ ​</td><td></td><td>( 127,083 )</td><td>​ ​</td></tr><tr><td>Other income, net</td><td>​ ​</td><td></td><td>3,865</td><td>​ ​</td><td></td><td>23,242</td><td>​ ​</td><td></td><td>20,899</td><td>​ ​</td></tr><tr><td>Total other expense, net</td><td>​ ​</td><td></td><td>( 62,514 )</td><td>​ ​</td><td></td><td>( 63,760 )</td><td>​ ​</td><td></td><td>( 88,579 )</td><td>​ ​</td></tr><tr><td>INCOME BEFORE INCOME TAXES</td><td>​ ​</td><td></td><td>432,143</td><td>​ ​</td><td></td><td>40,309</td><td>​ ​</td><td></td><td>92,583</td><td>​ ​</td></tr><tr><td>PROVISION FOR INCOME TAXES</td><td>​ ​</td><td></td><td>109,181</td><td>​ ​</td><td></td><td>5,967</td><td>​ ​</td><td></td><td>19,630</td><td>​ ​</td></tr><tr><td>NET INCOME</td><td>​ ​</td><td>$</td><td>322,962</td><td>​ ​</td><td>$</td><td>34,342</td><td>​ ​</td><td>$</td><td>72,953</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>BASIC EARNINGS PER SHARE</td><td>​ ​</td><td>$</td><td>8.02</td><td>​ ​</td><td>$</td><td>0.78</td><td>​ ​</td><td>$</td><td>1.44</td><td>​ ​</td></tr><tr><td>DILUTED EARNINGS PER SHARE</td><td>​ ​</td><td>$</td><td>7.77</td><td>​ ​</td><td>$</td><td>0.77</td><td>​ ​</td><td>$</td><td>1.44</td><td>​ ​</td></tr><tr><td>Weighted average common shares:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Basic</td><td>​ ​</td><td></td><td>40,262</td><td>​ ​</td><td></td><td>43,940</td><td>​ ​</td><td></td><td>50,548</td><td>​ ​</td></tr><tr><td>Diluted</td><td>​ ​</td><td></td><td>41,547</td><td>​ ​</td><td></td><td>44,599</td><td>​ ​</td><td></td><td>50,644</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>COMPREHENSIVE INCOME:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Net income</td><td>​ ​</td><td>$</td><td>322,962</td><td>​ ​</td><td>$</td><td>34,342</td><td>​ ​</td><td>$</td><td>72,953</td><td>​ ​</td></tr><tr><td>Net unrealized appreciation (depreciation) on marketable securities, net ofΒ taxes</td><td>​ ​</td><td></td><td>( 157 )</td><td>​ ​</td><td></td><td>4,127</td><td>​ ​</td><td></td><td>( 3,802 )</td><td>​ ​</td></tr><tr><td>TOTAL COMPREHENSIVE INCOME</td><td>​ ​</td><td>$</td><td>322,805</td><td>​ ​</td><td>$</td><td>38,469</td><td>​ ​</td><td>$</td><td>69,151</td><td>​ ​</td></tr></table>
table
0.78
perShareItemType
table: <entity> 0.78 </entity> <entity type> perShareItemType </entity type> <context> BASIC EARNINGS PER SHARE | ​ ​ | $ | 8.02 | ​ ​ | $ | 0.78 | ​ ​ | $ | 1.44 | ​ ​ </context>
us-gaap:EarningsPerShareBasic
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Year Ended DecemberΒ 31,</td></tr><tr><td>​ ​</td><td></td><td>2024</td><td>​ ​</td><td>2023</td><td>​ ​</td><td>​ ​</td><td>2022</td><td></td></tr><tr><td>OPERATING REVENUES:</td><td>​ ​</td><td>​ ​</td><td></td><td></td><td>​ ​</td><td></td><td></td><td>​ ​</td><td></td><td>​ ​</td></tr><tr><td>Flying agreements</td><td>​ ​</td><td>$</td><td>3,412,798</td><td>​ ​</td><td>$</td><td>2,834,397</td><td>​ ​</td><td>$</td><td>2,899,837</td><td>​ ​</td></tr><tr><td>Lease, airport services and other</td><td>​ ​</td><td></td><td>115,122</td><td>​ ​</td><td></td><td>101,035</td><td>​ ​</td><td></td><td>105,088</td><td>​ ​</td></tr><tr><td>Total operating revenues</td><td>​ ​</td><td></td><td>3,527,920</td><td>​ ​</td><td></td><td>2,935,432</td><td>​ ​</td><td></td><td>3,004,925</td><td>​ ​</td></tr><tr><td>OPERATING EXPENSES:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Salaries, wages and benefits</td><td>​ ​</td><td></td><td>1,463,932</td><td>​ ​</td><td></td><td>1,322,615</td><td>​ ​</td><td></td><td>1,211,551</td><td>​ ​</td></tr><tr><td>Aircraft maintenance, materials and repairs</td><td>​ ​</td><td></td><td>712,642</td><td>​ ​</td><td></td><td>673,453</td><td>​ ​</td><td></td><td>644,157</td><td>​ ​</td></tr><tr><td>Depreciation and amortization</td><td>​ ​</td><td></td><td>383,880</td><td>​ ​</td><td></td><td>383,115</td><td>​ ​</td><td></td><td>394,552</td><td>​ ​</td></tr><tr><td>Aircraft fuel</td><td>​ ​</td><td></td><td>87,409</td><td>​ ​</td><td></td><td>85,913</td><td>​ ​</td><td></td><td>108,456</td><td>​ ​</td></tr><tr><td>Airport-related expenses</td><td>​ ​</td><td></td><td>85,836</td><td>​ ​</td><td></td><td>72,640</td><td>​ ​</td><td></td><td>71,549</td><td>​ ​</td></tr><tr><td>Aircraft rentals</td><td>​ ​</td><td></td><td>5,257</td><td>​ ​</td><td></td><td>25,507</td><td>​ ​</td><td></td><td>75,353</td><td>​ ​</td></tr><tr><td>Other operating expenses</td><td>​ ​</td><td></td><td>294,307</td><td>​ ​</td><td></td><td>268,120</td><td>​ ​</td><td></td><td>318,145</td><td>​ ​</td></tr><tr><td>Total operating expenses</td><td>​ ​</td><td></td><td>3,033,263</td><td>​ ​</td><td></td><td>2,831,363</td><td>​ ​</td><td></td><td>2,823,763</td><td>​ ​</td></tr><tr><td>OPERATING INCOME</td><td>​ ​</td><td></td><td>494,657</td><td>​ ​</td><td></td><td>104,069</td><td>​ ​</td><td></td><td>181,162</td><td>​ ​</td></tr><tr><td>OTHER INCOME (EXPENSE):</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Interest income</td><td>​ ​</td><td></td><td>47,961</td><td>​ ​</td><td></td><td>43,928</td><td>​ ​</td><td></td><td>17,605</td><td>​ ​</td></tr><tr><td>Interest expense</td><td>​ ​</td><td></td><td>( 114,340 )</td><td>​ ​</td><td></td><td>( 130,930 )</td><td>​ ​</td><td></td><td>( 127,083 )</td><td>​ ​</td></tr><tr><td>Other income, net</td><td>​ ​</td><td></td><td>3,865</td><td>​ ​</td><td></td><td>23,242</td><td>​ ​</td><td></td><td>20,899</td><td>​ ​</td></tr><tr><td>Total other expense, net</td><td>​ ​</td><td></td><td>( 62,514 )</td><td>​ ​</td><td></td><td>( 63,760 )</td><td>​ ​</td><td></td><td>( 88,579 )</td><td>​ ​</td></tr><tr><td>INCOME BEFORE INCOME TAXES</td><td>​ ​</td><td></td><td>432,143</td><td>​ ​</td><td></td><td>40,309</td><td>​ ​</td><td></td><td>92,583</td><td>​ ​</td></tr><tr><td>PROVISION FOR INCOME TAXES</td><td>​ ​</td><td></td><td>109,181</td><td>​ ​</td><td></td><td>5,967</td><td>​ ​</td><td></td><td>19,630</td><td>​ ​</td></tr><tr><td>NET INCOME</td><td>​ ​</td><td>$</td><td>322,962</td><td>​ ​</td><td>$</td><td>34,342</td><td>​ ​</td><td>$</td><td>72,953</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>BASIC EARNINGS PER SHARE</td><td>​ ​</td><td>$</td><td>8.02</td><td>​ ​</td><td>$</td><td>0.78</td><td>​ ​</td><td>$</td><td>1.44</td><td>​ ​</td></tr><tr><td>DILUTED EARNINGS PER SHARE</td><td>​ ​</td><td>$</td><td>7.77</td><td>​ ​</td><td>$</td><td>0.77</td><td>​ ​</td><td>$</td><td>1.44</td><td>​ ​</td></tr><tr><td>Weighted average common shares:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Basic</td><td>​ ​</td><td></td><td>40,262</td><td>​ ​</td><td></td><td>43,940</td><td>​ ​</td><td></td><td>50,548</td><td>​ ​</td></tr><tr><td>Diluted</td><td>​ ​</td><td></td><td>41,547</td><td>​ ​</td><td></td><td>44,599</td><td>​ ​</td><td></td><td>50,644</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>COMPREHENSIVE INCOME:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Net income</td><td>​ ​</td><td>$</td><td>322,962</td><td>​ ​</td><td>$</td><td>34,342</td><td>​ ​</td><td>$</td><td>72,953</td><td>​ ​</td></tr><tr><td>Net unrealized appreciation (depreciation) on marketable securities, net ofΒ taxes</td><td>​ ​</td><td></td><td>( 157 )</td><td>​ ​</td><td></td><td>4,127</td><td>​ ​</td><td></td><td>( 3,802 )</td><td>​ ​</td></tr><tr><td>TOTAL COMPREHENSIVE INCOME</td><td>​ ​</td><td>$</td><td>322,805</td><td>​ ​</td><td>$</td><td>38,469</td><td>​ ​</td><td>$</td><td>69,151</td><td>​ ​</td></tr></table>
table
1.44
perShareItemType
table: <entity> 1.44 </entity> <entity type> perShareItemType </entity type> <context> BASIC EARNINGS PER SHARE | ​ ​ | $ | 8.02 | ​ ​ | $ | 0.78 | ​ ​ | $ | 1.44 | ​ ​ </context>
us-gaap:EarningsPerShareBasic
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Year Ended DecemberΒ 31,</td></tr><tr><td>​ ​</td><td></td><td>2024</td><td>​ ​</td><td>2023</td><td>​ ​</td><td>​ ​</td><td>2022</td><td></td></tr><tr><td>OPERATING REVENUES:</td><td>​ ​</td><td>​ ​</td><td></td><td></td><td>​ ​</td><td></td><td></td><td>​ ​</td><td></td><td>​ ​</td></tr><tr><td>Flying agreements</td><td>​ ​</td><td>$</td><td>3,412,798</td><td>​ ​</td><td>$</td><td>2,834,397</td><td>​ ​</td><td>$</td><td>2,899,837</td><td>​ ​</td></tr><tr><td>Lease, airport services and other</td><td>​ ​</td><td></td><td>115,122</td><td>​ ​</td><td></td><td>101,035</td><td>​ ​</td><td></td><td>105,088</td><td>​ ​</td></tr><tr><td>Total operating revenues</td><td>​ ​</td><td></td><td>3,527,920</td><td>​ ​</td><td></td><td>2,935,432</td><td>​ ​</td><td></td><td>3,004,925</td><td>​ ​</td></tr><tr><td>OPERATING EXPENSES:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Salaries, wages and benefits</td><td>​ ​</td><td></td><td>1,463,932</td><td>​ ​</td><td></td><td>1,322,615</td><td>​ ​</td><td></td><td>1,211,551</td><td>​ ​</td></tr><tr><td>Aircraft maintenance, materials and repairs</td><td>​ ​</td><td></td><td>712,642</td><td>​ ​</td><td></td><td>673,453</td><td>​ ​</td><td></td><td>644,157</td><td>​ ​</td></tr><tr><td>Depreciation and amortization</td><td>​ ​</td><td></td><td>383,880</td><td>​ ​</td><td></td><td>383,115</td><td>​ ​</td><td></td><td>394,552</td><td>​ ​</td></tr><tr><td>Aircraft fuel</td><td>​ ​</td><td></td><td>87,409</td><td>​ ​</td><td></td><td>85,913</td><td>​ ​</td><td></td><td>108,456</td><td>​ ​</td></tr><tr><td>Airport-related expenses</td><td>​ ​</td><td></td><td>85,836</td><td>​ ​</td><td></td><td>72,640</td><td>​ ​</td><td></td><td>71,549</td><td>​ ​</td></tr><tr><td>Aircraft rentals</td><td>​ ​</td><td></td><td>5,257</td><td>​ ​</td><td></td><td>25,507</td><td>​ ​</td><td></td><td>75,353</td><td>​ ​</td></tr><tr><td>Other operating expenses</td><td>​ ​</td><td></td><td>294,307</td><td>​ ​</td><td></td><td>268,120</td><td>​ ​</td><td></td><td>318,145</td><td>​ ​</td></tr><tr><td>Total operating expenses</td><td>​ ​</td><td></td><td>3,033,263</td><td>​ ​</td><td></td><td>2,831,363</td><td>​ ​</td><td></td><td>2,823,763</td><td>​ ​</td></tr><tr><td>OPERATING INCOME</td><td>​ ​</td><td></td><td>494,657</td><td>​ ​</td><td></td><td>104,069</td><td>​ ​</td><td></td><td>181,162</td><td>​ ​</td></tr><tr><td>OTHER INCOME (EXPENSE):</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Interest income</td><td>​ ​</td><td></td><td>47,961</td><td>​ ​</td><td></td><td>43,928</td><td>​ ​</td><td></td><td>17,605</td><td>​ ​</td></tr><tr><td>Interest expense</td><td>​ ​</td><td></td><td>( 114,340 )</td><td>​ ​</td><td></td><td>( 130,930 )</td><td>​ ​</td><td></td><td>( 127,083 )</td><td>​ ​</td></tr><tr><td>Other income, net</td><td>​ ​</td><td></td><td>3,865</td><td>​ ​</td><td></td><td>23,242</td><td>​ ​</td><td></td><td>20,899</td><td>​ ​</td></tr><tr><td>Total other expense, net</td><td>​ ​</td><td></td><td>( 62,514 )</td><td>​ ​</td><td></td><td>( 63,760 )</td><td>​ ​</td><td></td><td>( 88,579 )</td><td>​ ​</td></tr><tr><td>INCOME BEFORE INCOME TAXES</td><td>​ ​</td><td></td><td>432,143</td><td>​ ​</td><td></td><td>40,309</td><td>​ ​</td><td></td><td>92,583</td><td>​ ​</td></tr><tr><td>PROVISION FOR INCOME TAXES</td><td>​ ​</td><td></td><td>109,181</td><td>​ ​</td><td></td><td>5,967</td><td>​ ​</td><td></td><td>19,630</td><td>​ ​</td></tr><tr><td>NET INCOME</td><td>​ ​</td><td>$</td><td>322,962</td><td>​ ​</td><td>$</td><td>34,342</td><td>​ ​</td><td>$</td><td>72,953</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>BASIC EARNINGS PER SHARE</td><td>​ ​</td><td>$</td><td>8.02</td><td>​ ​</td><td>$</td><td>0.78</td><td>​ ​</td><td>$</td><td>1.44</td><td>​ ​</td></tr><tr><td>DILUTED EARNINGS PER SHARE</td><td>​ ​</td><td>$</td><td>7.77</td><td>​ ​</td><td>$</td><td>0.77</td><td>​ ​</td><td>$</td><td>1.44</td><td>​ ​</td></tr><tr><td>Weighted average common shares:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Basic</td><td>​ ​</td><td></td><td>40,262</td><td>​ ​</td><td></td><td>43,940</td><td>​ ​</td><td></td><td>50,548</td><td>​ ​</td></tr><tr><td>Diluted</td><td>​ ​</td><td></td><td>41,547</td><td>​ ​</td><td></td><td>44,599</td><td>​ ​</td><td></td><td>50,644</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>COMPREHENSIVE INCOME:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Net income</td><td>​ ​</td><td>$</td><td>322,962</td><td>​ ​</td><td>$</td><td>34,342</td><td>​ ​</td><td>$</td><td>72,953</td><td>​ ​</td></tr><tr><td>Net unrealized appreciation (depreciation) on marketable securities, net ofΒ taxes</td><td>​ ​</td><td></td><td>( 157 )</td><td>​ ​</td><td></td><td>4,127</td><td>​ ​</td><td></td><td>( 3,802 )</td><td>​ ​</td></tr><tr><td>TOTAL COMPREHENSIVE INCOME</td><td>​ ​</td><td>$</td><td>322,805</td><td>​ ​</td><td>$</td><td>38,469</td><td>​ ​</td><td>$</td><td>69,151</td><td>​ ​</td></tr></table>
table
7.77
perShareItemType
table: <entity> 7.77 </entity> <entity type> perShareItemType </entity type> <context> DILUTED EARNINGS PER SHARE | ​ ​ | $ | 7.77 | ​ ​ | $ | 0.77 | ​ ​ | $ | 1.44 | ​ ​ </context>
us-gaap:EarningsPerShareDiluted
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Year Ended DecemberΒ 31,</td></tr><tr><td>​ ​</td><td></td><td>2024</td><td>​ ​</td><td>2023</td><td>​ ​</td><td>​ ​</td><td>2022</td><td></td></tr><tr><td>OPERATING REVENUES:</td><td>​ ​</td><td>​ ​</td><td></td><td></td><td>​ ​</td><td></td><td></td><td>​ ​</td><td></td><td>​ ​</td></tr><tr><td>Flying agreements</td><td>​ ​</td><td>$</td><td>3,412,798</td><td>​ ​</td><td>$</td><td>2,834,397</td><td>​ ​</td><td>$</td><td>2,899,837</td><td>​ ​</td></tr><tr><td>Lease, airport services and other</td><td>​ ​</td><td></td><td>115,122</td><td>​ ​</td><td></td><td>101,035</td><td>​ ​</td><td></td><td>105,088</td><td>​ ​</td></tr><tr><td>Total operating revenues</td><td>​ ​</td><td></td><td>3,527,920</td><td>​ ​</td><td></td><td>2,935,432</td><td>​ ​</td><td></td><td>3,004,925</td><td>​ ​</td></tr><tr><td>OPERATING EXPENSES:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Salaries, wages and benefits</td><td>​ ​</td><td></td><td>1,463,932</td><td>​ ​</td><td></td><td>1,322,615</td><td>​ ​</td><td></td><td>1,211,551</td><td>​ ​</td></tr><tr><td>Aircraft maintenance, materials and repairs</td><td>​ ​</td><td></td><td>712,642</td><td>​ ​</td><td></td><td>673,453</td><td>​ ​</td><td></td><td>644,157</td><td>​ ​</td></tr><tr><td>Depreciation and amortization</td><td>​ ​</td><td></td><td>383,880</td><td>​ ​</td><td></td><td>383,115</td><td>​ ​</td><td></td><td>394,552</td><td>​ ​</td></tr><tr><td>Aircraft fuel</td><td>​ ​</td><td></td><td>87,409</td><td>​ ​</td><td></td><td>85,913</td><td>​ ​</td><td></td><td>108,456</td><td>​ ​</td></tr><tr><td>Airport-related expenses</td><td>​ ​</td><td></td><td>85,836</td><td>​ ​</td><td></td><td>72,640</td><td>​ ​</td><td></td><td>71,549</td><td>​ ​</td></tr><tr><td>Aircraft rentals</td><td>​ ​</td><td></td><td>5,257</td><td>​ ​</td><td></td><td>25,507</td><td>​ ​</td><td></td><td>75,353</td><td>​ ​</td></tr><tr><td>Other operating expenses</td><td>​ ​</td><td></td><td>294,307</td><td>​ ​</td><td></td><td>268,120</td><td>​ ​</td><td></td><td>318,145</td><td>​ ​</td></tr><tr><td>Total operating expenses</td><td>​ ​</td><td></td><td>3,033,263</td><td>​ ​</td><td></td><td>2,831,363</td><td>​ ​</td><td></td><td>2,823,763</td><td>​ ​</td></tr><tr><td>OPERATING INCOME</td><td>​ ​</td><td></td><td>494,657</td><td>​ ​</td><td></td><td>104,069</td><td>​ ​</td><td></td><td>181,162</td><td>​ ​</td></tr><tr><td>OTHER INCOME (EXPENSE):</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Interest income</td><td>​ ​</td><td></td><td>47,961</td><td>​ ​</td><td></td><td>43,928</td><td>​ ​</td><td></td><td>17,605</td><td>​ ​</td></tr><tr><td>Interest expense</td><td>​ ​</td><td></td><td>( 114,340 )</td><td>​ ​</td><td></td><td>( 130,930 )</td><td>​ ​</td><td></td><td>( 127,083 )</td><td>​ ​</td></tr><tr><td>Other income, net</td><td>​ ​</td><td></td><td>3,865</td><td>​ ​</td><td></td><td>23,242</td><td>​ ​</td><td></td><td>20,899</td><td>​ ​</td></tr><tr><td>Total other expense, net</td><td>​ ​</td><td></td><td>( 62,514 )</td><td>​ ​</td><td></td><td>( 63,760 )</td><td>​ ​</td><td></td><td>( 88,579 )</td><td>​ ​</td></tr><tr><td>INCOME BEFORE INCOME TAXES</td><td>​ ​</td><td></td><td>432,143</td><td>​ ​</td><td></td><td>40,309</td><td>​ ​</td><td></td><td>92,583</td><td>​ ​</td></tr><tr><td>PROVISION FOR INCOME TAXES</td><td>​ ​</td><td></td><td>109,181</td><td>​ ​</td><td></td><td>5,967</td><td>​ ​</td><td></td><td>19,630</td><td>​ ​</td></tr><tr><td>NET INCOME</td><td>​ ​</td><td>$</td><td>322,962</td><td>​ ​</td><td>$</td><td>34,342</td><td>​ ​</td><td>$</td><td>72,953</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>BASIC EARNINGS PER SHARE</td><td>​ ​</td><td>$</td><td>8.02</td><td>​ ​</td><td>$</td><td>0.78</td><td>​ ​</td><td>$</td><td>1.44</td><td>​ ​</td></tr><tr><td>DILUTED EARNINGS PER SHARE</td><td>​ ​</td><td>$</td><td>7.77</td><td>​ ​</td><td>$</td><td>0.77</td><td>​ ​</td><td>$</td><td>1.44</td><td>​ ​</td></tr><tr><td>Weighted average common shares:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Basic</td><td>​ ​</td><td></td><td>40,262</td><td>​ ​</td><td></td><td>43,940</td><td>​ ​</td><td></td><td>50,548</td><td>​ ​</td></tr><tr><td>Diluted</td><td>​ ​</td><td></td><td>41,547</td><td>​ ​</td><td></td><td>44,599</td><td>​ ​</td><td></td><td>50,644</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>COMPREHENSIVE INCOME:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Net income</td><td>​ ​</td><td>$</td><td>322,962</td><td>​ ​</td><td>$</td><td>34,342</td><td>​ ​</td><td>$</td><td>72,953</td><td>​ ​</td></tr><tr><td>Net unrealized appreciation (depreciation) on marketable securities, net ofΒ taxes</td><td>​ ​</td><td></td><td>( 157 )</td><td>​ ​</td><td></td><td>4,127</td><td>​ ​</td><td></td><td>( 3,802 )</td><td>​ ​</td></tr><tr><td>TOTAL COMPREHENSIVE INCOME</td><td>​ ​</td><td>$</td><td>322,805</td><td>​ ​</td><td>$</td><td>38,469</td><td>​ ​</td><td>$</td><td>69,151</td><td>​ ​</td></tr></table>
table
0.77
perShareItemType
table: <entity> 0.77 </entity> <entity type> perShareItemType </entity type> <context> DILUTED EARNINGS PER SHARE | ​ ​ | $ | 7.77 | ​ ​ | $ | 0.77 | ​ ​ | $ | 1.44 | ​ ​ </context>
us-gaap:EarningsPerShareDiluted
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Year Ended DecemberΒ 31,</td></tr><tr><td>​ ​</td><td></td><td>2024</td><td>​ ​</td><td>2023</td><td>​ ​</td><td>​ ​</td><td>2022</td><td></td></tr><tr><td>OPERATING REVENUES:</td><td>​ ​</td><td>​ ​</td><td></td><td></td><td>​ ​</td><td></td><td></td><td>​ ​</td><td></td><td>​ ​</td></tr><tr><td>Flying agreements</td><td>​ ​</td><td>$</td><td>3,412,798</td><td>​ ​</td><td>$</td><td>2,834,397</td><td>​ ​</td><td>$</td><td>2,899,837</td><td>​ ​</td></tr><tr><td>Lease, airport services and other</td><td>​ ​</td><td></td><td>115,122</td><td>​ ​</td><td></td><td>101,035</td><td>​ ​</td><td></td><td>105,088</td><td>​ ​</td></tr><tr><td>Total operating revenues</td><td>​ ​</td><td></td><td>3,527,920</td><td>​ ​</td><td></td><td>2,935,432</td><td>​ ​</td><td></td><td>3,004,925</td><td>​ ​</td></tr><tr><td>OPERATING EXPENSES:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Salaries, wages and benefits</td><td>​ ​</td><td></td><td>1,463,932</td><td>​ ​</td><td></td><td>1,322,615</td><td>​ ​</td><td></td><td>1,211,551</td><td>​ ​</td></tr><tr><td>Aircraft maintenance, materials and repairs</td><td>​ ​</td><td></td><td>712,642</td><td>​ ​</td><td></td><td>673,453</td><td>​ ​</td><td></td><td>644,157</td><td>​ ​</td></tr><tr><td>Depreciation and amortization</td><td>​ ​</td><td></td><td>383,880</td><td>​ ​</td><td></td><td>383,115</td><td>​ ​</td><td></td><td>394,552</td><td>​ ​</td></tr><tr><td>Aircraft fuel</td><td>​ ​</td><td></td><td>87,409</td><td>​ ​</td><td></td><td>85,913</td><td>​ ​</td><td></td><td>108,456</td><td>​ ​</td></tr><tr><td>Airport-related expenses</td><td>​ ​</td><td></td><td>85,836</td><td>​ ​</td><td></td><td>72,640</td><td>​ ​</td><td></td><td>71,549</td><td>​ ​</td></tr><tr><td>Aircraft rentals</td><td>​ ​</td><td></td><td>5,257</td><td>​ ​</td><td></td><td>25,507</td><td>​ ​</td><td></td><td>75,353</td><td>​ ​</td></tr><tr><td>Other operating expenses</td><td>​ ​</td><td></td><td>294,307</td><td>​ ​</td><td></td><td>268,120</td><td>​ ​</td><td></td><td>318,145</td><td>​ ​</td></tr><tr><td>Total operating expenses</td><td>​ ​</td><td></td><td>3,033,263</td><td>​ ​</td><td></td><td>2,831,363</td><td>​ ​</td><td></td><td>2,823,763</td><td>​ ​</td></tr><tr><td>OPERATING INCOME</td><td>​ ​</td><td></td><td>494,657</td><td>​ ​</td><td></td><td>104,069</td><td>​ ​</td><td></td><td>181,162</td><td>​ ​</td></tr><tr><td>OTHER INCOME (EXPENSE):</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Interest income</td><td>​ ​</td><td></td><td>47,961</td><td>​ ​</td><td></td><td>43,928</td><td>​ ​</td><td></td><td>17,605</td><td>​ ​</td></tr><tr><td>Interest expense</td><td>​ ​</td><td></td><td>( 114,340 )</td><td>​ ​</td><td></td><td>( 130,930 )</td><td>​ ​</td><td></td><td>( 127,083 )</td><td>​ ​</td></tr><tr><td>Other income, net</td><td>​ ​</td><td></td><td>3,865</td><td>​ ​</td><td></td><td>23,242</td><td>​ ​</td><td></td><td>20,899</td><td>​ ​</td></tr><tr><td>Total other expense, net</td><td>​ ​</td><td></td><td>( 62,514 )</td><td>​ ​</td><td></td><td>( 63,760 )</td><td>​ ​</td><td></td><td>( 88,579 )</td><td>​ ​</td></tr><tr><td>INCOME BEFORE INCOME TAXES</td><td>​ ​</td><td></td><td>432,143</td><td>​ ​</td><td></td><td>40,309</td><td>​ ​</td><td></td><td>92,583</td><td>​ ​</td></tr><tr><td>PROVISION FOR INCOME TAXES</td><td>​ ​</td><td></td><td>109,181</td><td>​ ​</td><td></td><td>5,967</td><td>​ ​</td><td></td><td>19,630</td><td>​ ​</td></tr><tr><td>NET INCOME</td><td>​ ​</td><td>$</td><td>322,962</td><td>​ ​</td><td>$</td><td>34,342</td><td>​ ​</td><td>$</td><td>72,953</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>BASIC EARNINGS PER SHARE</td><td>​ ​</td><td>$</td><td>8.02</td><td>​ ​</td><td>$</td><td>0.78</td><td>​ ​</td><td>$</td><td>1.44</td><td>​ ​</td></tr><tr><td>DILUTED EARNINGS PER SHARE</td><td>​ ​</td><td>$</td><td>7.77</td><td>​ ​</td><td>$</td><td>0.77</td><td>​ ​</td><td>$</td><td>1.44</td><td>​ ​</td></tr><tr><td>Weighted average common shares:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Basic</td><td>​ ​</td><td></td><td>40,262</td><td>​ ​</td><td></td><td>43,940</td><td>​ ​</td><td></td><td>50,548</td><td>​ ​</td></tr><tr><td>Diluted</td><td>​ ​</td><td></td><td>41,547</td><td>​ ​</td><td></td><td>44,599</td><td>​ ​</td><td></td><td>50,644</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>COMPREHENSIVE INCOME:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Net income</td><td>​ ​</td><td>$</td><td>322,962</td><td>​ ​</td><td>$</td><td>34,342</td><td>​ ​</td><td>$</td><td>72,953</td><td>​ ​</td></tr><tr><td>Net unrealized appreciation (depreciation) on marketable securities, net ofΒ taxes</td><td>​ ​</td><td></td><td>( 157 )</td><td>​ ​</td><td></td><td>4,127</td><td>​ ​</td><td></td><td>( 3,802 )</td><td>​ ​</td></tr><tr><td>TOTAL COMPREHENSIVE INCOME</td><td>​ ​</td><td>$</td><td>322,805</td><td>​ ​</td><td>$</td><td>38,469</td><td>​ ​</td><td>$</td><td>69,151</td><td>​ ​</td></tr></table>
table
1.44
perShareItemType
table: <entity> 1.44 </entity> <entity type> perShareItemType </entity type> <context> BASIC EARNINGS PER SHARE | ​ ​ | $ | 8.02 | ​ ​ | $ | 0.78 | ​ ​ | $ | 1.44 | ​ ​ </context>
us-gaap:EarningsPerShareDiluted
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Year Ended DecemberΒ 31,</td></tr><tr><td>​ ​</td><td></td><td>2024</td><td>​ ​</td><td>2023</td><td>​ ​</td><td>​ ​</td><td>2022</td><td></td></tr><tr><td>OPERATING REVENUES:</td><td>​ ​</td><td>​ ​</td><td></td><td></td><td>​ ​</td><td></td><td></td><td>​ ​</td><td></td><td>​ ​</td></tr><tr><td>Flying agreements</td><td>​ ​</td><td>$</td><td>3,412,798</td><td>​ ​</td><td>$</td><td>2,834,397</td><td>​ ​</td><td>$</td><td>2,899,837</td><td>​ ​</td></tr><tr><td>Lease, airport services and other</td><td>​ ​</td><td></td><td>115,122</td><td>​ ​</td><td></td><td>101,035</td><td>​ ​</td><td></td><td>105,088</td><td>​ ​</td></tr><tr><td>Total operating revenues</td><td>​ ​</td><td></td><td>3,527,920</td><td>​ ​</td><td></td><td>2,935,432</td><td>​ ​</td><td></td><td>3,004,925</td><td>​ ​</td></tr><tr><td>OPERATING EXPENSES:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Salaries, wages and benefits</td><td>​ ​</td><td></td><td>1,463,932</td><td>​ ​</td><td></td><td>1,322,615</td><td>​ ​</td><td></td><td>1,211,551</td><td>​ ​</td></tr><tr><td>Aircraft maintenance, materials and repairs</td><td>​ ​</td><td></td><td>712,642</td><td>​ ​</td><td></td><td>673,453</td><td>​ ​</td><td></td><td>644,157</td><td>​ ​</td></tr><tr><td>Depreciation and amortization</td><td>​ ​</td><td></td><td>383,880</td><td>​ ​</td><td></td><td>383,115</td><td>​ ​</td><td></td><td>394,552</td><td>​ ​</td></tr><tr><td>Aircraft fuel</td><td>​ ​</td><td></td><td>87,409</td><td>​ ​</td><td></td><td>85,913</td><td>​ ​</td><td></td><td>108,456</td><td>​ ​</td></tr><tr><td>Airport-related expenses</td><td>​ ​</td><td></td><td>85,836</td><td>​ ​</td><td></td><td>72,640</td><td>​ ​</td><td></td><td>71,549</td><td>​ ​</td></tr><tr><td>Aircraft rentals</td><td>​ ​</td><td></td><td>5,257</td><td>​ ​</td><td></td><td>25,507</td><td>​ ​</td><td></td><td>75,353</td><td>​ ​</td></tr><tr><td>Other operating expenses</td><td>​ ​</td><td></td><td>294,307</td><td>​ ​</td><td></td><td>268,120</td><td>​ ​</td><td></td><td>318,145</td><td>​ ​</td></tr><tr><td>Total operating expenses</td><td>​ ​</td><td></td><td>3,033,263</td><td>​ ​</td><td></td><td>2,831,363</td><td>​ ​</td><td></td><td>2,823,763</td><td>​ ​</td></tr><tr><td>OPERATING INCOME</td><td>​ ​</td><td></td><td>494,657</td><td>​ ​</td><td></td><td>104,069</td><td>​ ​</td><td></td><td>181,162</td><td>​ ​</td></tr><tr><td>OTHER INCOME (EXPENSE):</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Interest income</td><td>​ ​</td><td></td><td>47,961</td><td>​ ​</td><td></td><td>43,928</td><td>​ ​</td><td></td><td>17,605</td><td>​ ​</td></tr><tr><td>Interest expense</td><td>​ ​</td><td></td><td>( 114,340 )</td><td>​ ​</td><td></td><td>( 130,930 )</td><td>​ ​</td><td></td><td>( 127,083 )</td><td>​ ​</td></tr><tr><td>Other income, net</td><td>​ ​</td><td></td><td>3,865</td><td>​ ​</td><td></td><td>23,242</td><td>​ ​</td><td></td><td>20,899</td><td>​ ​</td></tr><tr><td>Total other expense, net</td><td>​ ​</td><td></td><td>( 62,514 )</td><td>​ ​</td><td></td><td>( 63,760 )</td><td>​ ​</td><td></td><td>( 88,579 )</td><td>​ ​</td></tr><tr><td>INCOME BEFORE INCOME TAXES</td><td>​ ​</td><td></td><td>432,143</td><td>​ ​</td><td></td><td>40,309</td><td>​ ​</td><td></td><td>92,583</td><td>​ ​</td></tr><tr><td>PROVISION FOR INCOME TAXES</td><td>​ ​</td><td></td><td>109,181</td><td>​ ​</td><td></td><td>5,967</td><td>​ ​</td><td></td><td>19,630</td><td>​ ​</td></tr><tr><td>NET INCOME</td><td>​ ​</td><td>$</td><td>322,962</td><td>​ ​</td><td>$</td><td>34,342</td><td>​ ​</td><td>$</td><td>72,953</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>BASIC EARNINGS PER SHARE</td><td>​ ​</td><td>$</td><td>8.02</td><td>​ ​</td><td>$</td><td>0.78</td><td>​ ​</td><td>$</td><td>1.44</td><td>​ ​</td></tr><tr><td>DILUTED EARNINGS PER SHARE</td><td>​ ​</td><td>$</td><td>7.77</td><td>​ ​</td><td>$</td><td>0.77</td><td>​ ​</td><td>$</td><td>1.44</td><td>​ ​</td></tr><tr><td>Weighted average common shares:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Basic</td><td>​ ​</td><td></td><td>40,262</td><td>​ ​</td><td></td><td>43,940</td><td>​ ​</td><td></td><td>50,548</td><td>​ ​</td></tr><tr><td>Diluted</td><td>​ ​</td><td></td><td>41,547</td><td>​ ​</td><td></td><td>44,599</td><td>​ ​</td><td></td><td>50,644</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>COMPREHENSIVE INCOME:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Net income</td><td>​ ​</td><td>$</td><td>322,962</td><td>​ ​</td><td>$</td><td>34,342</td><td>​ ​</td><td>$</td><td>72,953</td><td>​ ​</td></tr><tr><td>Net unrealized appreciation (depreciation) on marketable securities, net ofΒ taxes</td><td>​ ​</td><td></td><td>( 157 )</td><td>​ ​</td><td></td><td>4,127</td><td>​ ​</td><td></td><td>( 3,802 )</td><td>​ ​</td></tr><tr><td>TOTAL COMPREHENSIVE INCOME</td><td>​ ​</td><td>$</td><td>322,805</td><td>​ ​</td><td>$</td><td>38,469</td><td>​ ​</td><td>$</td><td>69,151</td><td>​ ​</td></tr></table>
table
40262
sharesItemType
table: <entity> 40262 </entity> <entity type> sharesItemType </entity type> <context> Basic | ​ ​ | 40,262 | ​ ​ | 43,940 | ​ ​ | 50,548 | ​ ​ </context>
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Year Ended DecemberΒ 31,</td></tr><tr><td>​ ​</td><td></td><td>2024</td><td>​ ​</td><td>2023</td><td>​ ​</td><td>​ ​</td><td>2022</td><td></td></tr><tr><td>OPERATING REVENUES:</td><td>​ ​</td><td>​ ​</td><td></td><td></td><td>​ ​</td><td></td><td></td><td>​ ​</td><td></td><td>​ ​</td></tr><tr><td>Flying agreements</td><td>​ ​</td><td>$</td><td>3,412,798</td><td>​ ​</td><td>$</td><td>2,834,397</td><td>​ ​</td><td>$</td><td>2,899,837</td><td>​ ​</td></tr><tr><td>Lease, airport services and other</td><td>​ ​</td><td></td><td>115,122</td><td>​ ​</td><td></td><td>101,035</td><td>​ ​</td><td></td><td>105,088</td><td>​ ​</td></tr><tr><td>Total operating revenues</td><td>​ ​</td><td></td><td>3,527,920</td><td>​ ​</td><td></td><td>2,935,432</td><td>​ ​</td><td></td><td>3,004,925</td><td>​ ​</td></tr><tr><td>OPERATING EXPENSES:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Salaries, wages and benefits</td><td>​ ​</td><td></td><td>1,463,932</td><td>​ ​</td><td></td><td>1,322,615</td><td>​ ​</td><td></td><td>1,211,551</td><td>​ ​</td></tr><tr><td>Aircraft maintenance, materials and repairs</td><td>​ ​</td><td></td><td>712,642</td><td>​ ​</td><td></td><td>673,453</td><td>​ ​</td><td></td><td>644,157</td><td>​ ​</td></tr><tr><td>Depreciation and amortization</td><td>​ ​</td><td></td><td>383,880</td><td>​ ​</td><td></td><td>383,115</td><td>​ ​</td><td></td><td>394,552</td><td>​ ​</td></tr><tr><td>Aircraft fuel</td><td>​ ​</td><td></td><td>87,409</td><td>​ ​</td><td></td><td>85,913</td><td>​ ​</td><td></td><td>108,456</td><td>​ ​</td></tr><tr><td>Airport-related expenses</td><td>​ ​</td><td></td><td>85,836</td><td>​ ​</td><td></td><td>72,640</td><td>​ ​</td><td></td><td>71,549</td><td>​ ​</td></tr><tr><td>Aircraft rentals</td><td>​ ​</td><td></td><td>5,257</td><td>​ ​</td><td></td><td>25,507</td><td>​ ​</td><td></td><td>75,353</td><td>​ ​</td></tr><tr><td>Other operating expenses</td><td>​ ​</td><td></td><td>294,307</td><td>​ ​</td><td></td><td>268,120</td><td>​ ​</td><td></td><td>318,145</td><td>​ ​</td></tr><tr><td>Total operating expenses</td><td>​ ​</td><td></td><td>3,033,263</td><td>​ ​</td><td></td><td>2,831,363</td><td>​ ​</td><td></td><td>2,823,763</td><td>​ ​</td></tr><tr><td>OPERATING INCOME</td><td>​ ​</td><td></td><td>494,657</td><td>​ ​</td><td></td><td>104,069</td><td>​ ​</td><td></td><td>181,162</td><td>​ ​</td></tr><tr><td>OTHER INCOME (EXPENSE):</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Interest income</td><td>​ ​</td><td></td><td>47,961</td><td>​ ​</td><td></td><td>43,928</td><td>​ ​</td><td></td><td>17,605</td><td>​ ​</td></tr><tr><td>Interest expense</td><td>​ ​</td><td></td><td>( 114,340 )</td><td>​ ​</td><td></td><td>( 130,930 )</td><td>​ ​</td><td></td><td>( 127,083 )</td><td>​ ​</td></tr><tr><td>Other income, net</td><td>​ ​</td><td></td><td>3,865</td><td>​ ​</td><td></td><td>23,242</td><td>​ ​</td><td></td><td>20,899</td><td>​ ​</td></tr><tr><td>Total other expense, net</td><td>​ ​</td><td></td><td>( 62,514 )</td><td>​ ​</td><td></td><td>( 63,760 )</td><td>​ ​</td><td></td><td>( 88,579 )</td><td>​ ​</td></tr><tr><td>INCOME BEFORE INCOME TAXES</td><td>​ ​</td><td></td><td>432,143</td><td>​ ​</td><td></td><td>40,309</td><td>​ ​</td><td></td><td>92,583</td><td>​ ​</td></tr><tr><td>PROVISION FOR INCOME TAXES</td><td>​ ​</td><td></td><td>109,181</td><td>​ ​</td><td></td><td>5,967</td><td>​ ​</td><td></td><td>19,630</td><td>​ ​</td></tr><tr><td>NET INCOME</td><td>​ ​</td><td>$</td><td>322,962</td><td>​ ​</td><td>$</td><td>34,342</td><td>​ ​</td><td>$</td><td>72,953</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>BASIC EARNINGS PER SHARE</td><td>​ ​</td><td>$</td><td>8.02</td><td>​ ​</td><td>$</td><td>0.78</td><td>​ ​</td><td>$</td><td>1.44</td><td>​ ​</td></tr><tr><td>DILUTED EARNINGS PER SHARE</td><td>​ ​</td><td>$</td><td>7.77</td><td>​ ​</td><td>$</td><td>0.77</td><td>​ ​</td><td>$</td><td>1.44</td><td>​ ​</td></tr><tr><td>Weighted average common shares:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Basic</td><td>​ ​</td><td></td><td>40,262</td><td>​ ​</td><td></td><td>43,940</td><td>​ ​</td><td></td><td>50,548</td><td>​ ​</td></tr><tr><td>Diluted</td><td>​ ​</td><td></td><td>41,547</td><td>​ ​</td><td></td><td>44,599</td><td>​ ​</td><td></td><td>50,644</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>COMPREHENSIVE INCOME:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Net income</td><td>​ ​</td><td>$</td><td>322,962</td><td>​ ​</td><td>$</td><td>34,342</td><td>​ ​</td><td>$</td><td>72,953</td><td>​ ​</td></tr><tr><td>Net unrealized appreciation (depreciation) on marketable securities, net ofΒ taxes</td><td>​ ​</td><td></td><td>( 157 )</td><td>​ ​</td><td></td><td>4,127</td><td>​ ​</td><td></td><td>( 3,802 )</td><td>​ ​</td></tr><tr><td>TOTAL COMPREHENSIVE INCOME</td><td>​ ​</td><td>$</td><td>322,805</td><td>​ ​</td><td>$</td><td>38,469</td><td>​ ​</td><td>$</td><td>69,151</td><td>​ ​</td></tr></table>
table
43940
sharesItemType
table: <entity> 43940 </entity> <entity type> sharesItemType </entity type> <context> Basic | ​ ​ | 40,262 | ​ ​ | 43,940 | ​ ​ | 50,548 | ​ ​ </context>
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Year Ended DecemberΒ 31,</td></tr><tr><td>​ ​</td><td></td><td>2024</td><td>​ ​</td><td>2023</td><td>​ ​</td><td>​ ​</td><td>2022</td><td></td></tr><tr><td>OPERATING REVENUES:</td><td>​ ​</td><td>​ ​</td><td></td><td></td><td>​ ​</td><td></td><td></td><td>​ ​</td><td></td><td>​ ​</td></tr><tr><td>Flying agreements</td><td>​ ​</td><td>$</td><td>3,412,798</td><td>​ ​</td><td>$</td><td>2,834,397</td><td>​ ​</td><td>$</td><td>2,899,837</td><td>​ ​</td></tr><tr><td>Lease, airport services and other</td><td>​ ​</td><td></td><td>115,122</td><td>​ ​</td><td></td><td>101,035</td><td>​ ​</td><td></td><td>105,088</td><td>​ ​</td></tr><tr><td>Total operating revenues</td><td>​ ​</td><td></td><td>3,527,920</td><td>​ ​</td><td></td><td>2,935,432</td><td>​ ​</td><td></td><td>3,004,925</td><td>​ ​</td></tr><tr><td>OPERATING EXPENSES:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Salaries, wages and benefits</td><td>​ ​</td><td></td><td>1,463,932</td><td>​ ​</td><td></td><td>1,322,615</td><td>​ ​</td><td></td><td>1,211,551</td><td>​ ​</td></tr><tr><td>Aircraft maintenance, materials and repairs</td><td>​ ​</td><td></td><td>712,642</td><td>​ ​</td><td></td><td>673,453</td><td>​ ​</td><td></td><td>644,157</td><td>​ ​</td></tr><tr><td>Depreciation and amortization</td><td>​ ​</td><td></td><td>383,880</td><td>​ ​</td><td></td><td>383,115</td><td>​ ​</td><td></td><td>394,552</td><td>​ ​</td></tr><tr><td>Aircraft fuel</td><td>​ ​</td><td></td><td>87,409</td><td>​ ​</td><td></td><td>85,913</td><td>​ ​</td><td></td><td>108,456</td><td>​ ​</td></tr><tr><td>Airport-related expenses</td><td>​ ​</td><td></td><td>85,836</td><td>​ ​</td><td></td><td>72,640</td><td>​ ​</td><td></td><td>71,549</td><td>​ ​</td></tr><tr><td>Aircraft rentals</td><td>​ ​</td><td></td><td>5,257</td><td>​ ​</td><td></td><td>25,507</td><td>​ ​</td><td></td><td>75,353</td><td>​ ​</td></tr><tr><td>Other operating expenses</td><td>​ ​</td><td></td><td>294,307</td><td>​ ​</td><td></td><td>268,120</td><td>​ ​</td><td></td><td>318,145</td><td>​ ​</td></tr><tr><td>Total operating expenses</td><td>​ ​</td><td></td><td>3,033,263</td><td>​ ​</td><td></td><td>2,831,363</td><td>​ ​</td><td></td><td>2,823,763</td><td>​ ​</td></tr><tr><td>OPERATING INCOME</td><td>​ ​</td><td></td><td>494,657</td><td>​ ​</td><td></td><td>104,069</td><td>​ ​</td><td></td><td>181,162</td><td>​ ​</td></tr><tr><td>OTHER INCOME (EXPENSE):</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Interest income</td><td>​ ​</td><td></td><td>47,961</td><td>​ ​</td><td></td><td>43,928</td><td>​ ​</td><td></td><td>17,605</td><td>​ ​</td></tr><tr><td>Interest expense</td><td>​ ​</td><td></td><td>( 114,340 )</td><td>​ ​</td><td></td><td>( 130,930 )</td><td>​ ​</td><td></td><td>( 127,083 )</td><td>​ ​</td></tr><tr><td>Other income, net</td><td>​ ​</td><td></td><td>3,865</td><td>​ ​</td><td></td><td>23,242</td><td>​ ​</td><td></td><td>20,899</td><td>​ ​</td></tr><tr><td>Total other expense, net</td><td>​ ​</td><td></td><td>( 62,514 )</td><td>​ ​</td><td></td><td>( 63,760 )</td><td>​ ​</td><td></td><td>( 88,579 )</td><td>​ ​</td></tr><tr><td>INCOME BEFORE INCOME TAXES</td><td>​ ​</td><td></td><td>432,143</td><td>​ ​</td><td></td><td>40,309</td><td>​ ​</td><td></td><td>92,583</td><td>​ ​</td></tr><tr><td>PROVISION FOR INCOME TAXES</td><td>​ ​</td><td></td><td>109,181</td><td>​ ​</td><td></td><td>5,967</td><td>​ ​</td><td></td><td>19,630</td><td>​ ​</td></tr><tr><td>NET INCOME</td><td>​ ​</td><td>$</td><td>322,962</td><td>​ ​</td><td>$</td><td>34,342</td><td>​ ​</td><td>$</td><td>72,953</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>BASIC EARNINGS PER SHARE</td><td>​ ​</td><td>$</td><td>8.02</td><td>​ ​</td><td>$</td><td>0.78</td><td>​ ​</td><td>$</td><td>1.44</td><td>​ ​</td></tr><tr><td>DILUTED EARNINGS PER SHARE</td><td>​ ​</td><td>$</td><td>7.77</td><td>​ ​</td><td>$</td><td>0.77</td><td>​ ​</td><td>$</td><td>1.44</td><td>​ ​</td></tr><tr><td>Weighted average common shares:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Basic</td><td>​ ​</td><td></td><td>40,262</td><td>​ ​</td><td></td><td>43,940</td><td>​ ​</td><td></td><td>50,548</td><td>​ ​</td></tr><tr><td>Diluted</td><td>​ ​</td><td></td><td>41,547</td><td>​ ​</td><td></td><td>44,599</td><td>​ ​</td><td></td><td>50,644</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>COMPREHENSIVE INCOME:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Net income</td><td>​ ​</td><td>$</td><td>322,962</td><td>​ ​</td><td>$</td><td>34,342</td><td>​ ​</td><td>$</td><td>72,953</td><td>​ ​</td></tr><tr><td>Net unrealized appreciation (depreciation) on marketable securities, net ofΒ taxes</td><td>​ ​</td><td></td><td>( 157 )</td><td>​ ​</td><td></td><td>4,127</td><td>​ ​</td><td></td><td>( 3,802 )</td><td>​ ​</td></tr><tr><td>TOTAL COMPREHENSIVE INCOME</td><td>​ ​</td><td>$</td><td>322,805</td><td>​ ​</td><td>$</td><td>38,469</td><td>​ ​</td><td>$</td><td>69,151</td><td>​ ​</td></tr></table>
table
50548
sharesItemType
table: <entity> 50548 </entity> <entity type> sharesItemType </entity type> <context> Basic | ​ ​ | 40,262 | ​ ​ | 43,940 | ​ ​ | 50,548 | ​ ​ </context>
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Year Ended DecemberΒ 31,</td></tr><tr><td>​ ​</td><td></td><td>2024</td><td>​ ​</td><td>2023</td><td>​ ​</td><td>​ ​</td><td>2022</td><td></td></tr><tr><td>OPERATING REVENUES:</td><td>​ ​</td><td>​ ​</td><td></td><td></td><td>​ ​</td><td></td><td></td><td>​ ​</td><td></td><td>​ ​</td></tr><tr><td>Flying agreements</td><td>​ ​</td><td>$</td><td>3,412,798</td><td>​ ​</td><td>$</td><td>2,834,397</td><td>​ ​</td><td>$</td><td>2,899,837</td><td>​ ​</td></tr><tr><td>Lease, airport services and other</td><td>​ ​</td><td></td><td>115,122</td><td>​ ​</td><td></td><td>101,035</td><td>​ ​</td><td></td><td>105,088</td><td>​ ​</td></tr><tr><td>Total operating revenues</td><td>​ ​</td><td></td><td>3,527,920</td><td>​ ​</td><td></td><td>2,935,432</td><td>​ ​</td><td></td><td>3,004,925</td><td>​ ​</td></tr><tr><td>OPERATING EXPENSES:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Salaries, wages and benefits</td><td>​ ​</td><td></td><td>1,463,932</td><td>​ ​</td><td></td><td>1,322,615</td><td>​ ​</td><td></td><td>1,211,551</td><td>​ ​</td></tr><tr><td>Aircraft maintenance, materials and repairs</td><td>​ ​</td><td></td><td>712,642</td><td>​ ​</td><td></td><td>673,453</td><td>​ ​</td><td></td><td>644,157</td><td>​ ​</td></tr><tr><td>Depreciation and amortization</td><td>​ ​</td><td></td><td>383,880</td><td>​ ​</td><td></td><td>383,115</td><td>​ ​</td><td></td><td>394,552</td><td>​ ​</td></tr><tr><td>Aircraft fuel</td><td>​ ​</td><td></td><td>87,409</td><td>​ ​</td><td></td><td>85,913</td><td>​ ​</td><td></td><td>108,456</td><td>​ ​</td></tr><tr><td>Airport-related expenses</td><td>​ ​</td><td></td><td>85,836</td><td>​ ​</td><td></td><td>72,640</td><td>​ ​</td><td></td><td>71,549</td><td>​ ​</td></tr><tr><td>Aircraft rentals</td><td>​ ​</td><td></td><td>5,257</td><td>​ ​</td><td></td><td>25,507</td><td>​ ​</td><td></td><td>75,353</td><td>​ ​</td></tr><tr><td>Other operating expenses</td><td>​ ​</td><td></td><td>294,307</td><td>​ ​</td><td></td><td>268,120</td><td>​ ​</td><td></td><td>318,145</td><td>​ ​</td></tr><tr><td>Total operating expenses</td><td>​ ​</td><td></td><td>3,033,263</td><td>​ ​</td><td></td><td>2,831,363</td><td>​ ​</td><td></td><td>2,823,763</td><td>​ ​</td></tr><tr><td>OPERATING INCOME</td><td>​ ​</td><td></td><td>494,657</td><td>​ ​</td><td></td><td>104,069</td><td>​ ​</td><td></td><td>181,162</td><td>​ ​</td></tr><tr><td>OTHER INCOME (EXPENSE):</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Interest income</td><td>​ ​</td><td></td><td>47,961</td><td>​ ​</td><td></td><td>43,928</td><td>​ ​</td><td></td><td>17,605</td><td>​ ​</td></tr><tr><td>Interest expense</td><td>​ ​</td><td></td><td>( 114,340 )</td><td>​ ​</td><td></td><td>( 130,930 )</td><td>​ ​</td><td></td><td>( 127,083 )</td><td>​ ​</td></tr><tr><td>Other income, net</td><td>​ ​</td><td></td><td>3,865</td><td>​ ​</td><td></td><td>23,242</td><td>​ ​</td><td></td><td>20,899</td><td>​ ​</td></tr><tr><td>Total other expense, net</td><td>​ ​</td><td></td><td>( 62,514 )</td><td>​ ​</td><td></td><td>( 63,760 )</td><td>​ ​</td><td></td><td>( 88,579 )</td><td>​ ​</td></tr><tr><td>INCOME BEFORE INCOME TAXES</td><td>​ ​</td><td></td><td>432,143</td><td>​ ​</td><td></td><td>40,309</td><td>​ ​</td><td></td><td>92,583</td><td>​ ​</td></tr><tr><td>PROVISION FOR INCOME TAXES</td><td>​ ​</td><td></td><td>109,181</td><td>​ ​</td><td></td><td>5,967</td><td>​ ​</td><td></td><td>19,630</td><td>​ ​</td></tr><tr><td>NET INCOME</td><td>​ ​</td><td>$</td><td>322,962</td><td>​ ​</td><td>$</td><td>34,342</td><td>​ ​</td><td>$</td><td>72,953</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>BASIC EARNINGS PER SHARE</td><td>​ ​</td><td>$</td><td>8.02</td><td>​ ​</td><td>$</td><td>0.78</td><td>​ ​</td><td>$</td><td>1.44</td><td>​ ​</td></tr><tr><td>DILUTED EARNINGS PER SHARE</td><td>​ ​</td><td>$</td><td>7.77</td><td>​ ​</td><td>$</td><td>0.77</td><td>​ ​</td><td>$</td><td>1.44</td><td>​ ​</td></tr><tr><td>Weighted average common shares:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Basic</td><td>​ ​</td><td></td><td>40,262</td><td>​ ​</td><td></td><td>43,940</td><td>​ ​</td><td></td><td>50,548</td><td>​ ​</td></tr><tr><td>Diluted</td><td>​ ​</td><td></td><td>41,547</td><td>​ ​</td><td></td><td>44,599</td><td>​ ​</td><td></td><td>50,644</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>COMPREHENSIVE INCOME:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Net income</td><td>​ ​</td><td>$</td><td>322,962</td><td>​ ​</td><td>$</td><td>34,342</td><td>​ ​</td><td>$</td><td>72,953</td><td>​ ​</td></tr><tr><td>Net unrealized appreciation (depreciation) on marketable securities, net ofΒ taxes</td><td>​ ​</td><td></td><td>( 157 )</td><td>​ ​</td><td></td><td>4,127</td><td>​ ​</td><td></td><td>( 3,802 )</td><td>​ ​</td></tr><tr><td>TOTAL COMPREHENSIVE INCOME</td><td>​ ​</td><td>$</td><td>322,805</td><td>​ ​</td><td>$</td><td>38,469</td><td>​ ​</td><td>$</td><td>69,151</td><td>​ ​</td></tr></table>
table
41547
sharesItemType
table: <entity> 41547 </entity> <entity type> sharesItemType </entity type> <context> Diluted | ​ ​ | 41,547 | ​ ​ | 44,599 | ​ ​ | 50,644 | ​ ​ </context>
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Year Ended DecemberΒ 31,</td></tr><tr><td>​ ​</td><td></td><td>2024</td><td>​ ​</td><td>2023</td><td>​ ​</td><td>​ ​</td><td>2022</td><td></td></tr><tr><td>OPERATING REVENUES:</td><td>​ ​</td><td>​ ​</td><td></td><td></td><td>​ ​</td><td></td><td></td><td>​ ​</td><td></td><td>​ ​</td></tr><tr><td>Flying agreements</td><td>​ ​</td><td>$</td><td>3,412,798</td><td>​ ​</td><td>$</td><td>2,834,397</td><td>​ ​</td><td>$</td><td>2,899,837</td><td>​ ​</td></tr><tr><td>Lease, airport services and other</td><td>​ ​</td><td></td><td>115,122</td><td>​ ​</td><td></td><td>101,035</td><td>​ ​</td><td></td><td>105,088</td><td>​ ​</td></tr><tr><td>Total operating revenues</td><td>​ ​</td><td></td><td>3,527,920</td><td>​ ​</td><td></td><td>2,935,432</td><td>​ ​</td><td></td><td>3,004,925</td><td>​ ​</td></tr><tr><td>OPERATING EXPENSES:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Salaries, wages and benefits</td><td>​ ​</td><td></td><td>1,463,932</td><td>​ ​</td><td></td><td>1,322,615</td><td>​ ​</td><td></td><td>1,211,551</td><td>​ ​</td></tr><tr><td>Aircraft maintenance, materials and repairs</td><td>​ ​</td><td></td><td>712,642</td><td>​ ​</td><td></td><td>673,453</td><td>​ ​</td><td></td><td>644,157</td><td>​ ​</td></tr><tr><td>Depreciation and amortization</td><td>​ ​</td><td></td><td>383,880</td><td>​ ​</td><td></td><td>383,115</td><td>​ ​</td><td></td><td>394,552</td><td>​ ​</td></tr><tr><td>Aircraft fuel</td><td>​ ​</td><td></td><td>87,409</td><td>​ ​</td><td></td><td>85,913</td><td>​ ​</td><td></td><td>108,456</td><td>​ ​</td></tr><tr><td>Airport-related expenses</td><td>​ ​</td><td></td><td>85,836</td><td>​ ​</td><td></td><td>72,640</td><td>​ ​</td><td></td><td>71,549</td><td>​ ​</td></tr><tr><td>Aircraft rentals</td><td>​ ​</td><td></td><td>5,257</td><td>​ ​</td><td></td><td>25,507</td><td>​ ​</td><td></td><td>75,353</td><td>​ ​</td></tr><tr><td>Other operating expenses</td><td>​ ​</td><td></td><td>294,307</td><td>​ ​</td><td></td><td>268,120</td><td>​ ​</td><td></td><td>318,145</td><td>​ ​</td></tr><tr><td>Total operating expenses</td><td>​ ​</td><td></td><td>3,033,263</td><td>​ ​</td><td></td><td>2,831,363</td><td>​ ​</td><td></td><td>2,823,763</td><td>​ ​</td></tr><tr><td>OPERATING INCOME</td><td>​ ​</td><td></td><td>494,657</td><td>​ ​</td><td></td><td>104,069</td><td>​ ​</td><td></td><td>181,162</td><td>​ ​</td></tr><tr><td>OTHER INCOME (EXPENSE):</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Interest income</td><td>​ ​</td><td></td><td>47,961</td><td>​ ​</td><td></td><td>43,928</td><td>​ ​</td><td></td><td>17,605</td><td>​ ​</td></tr><tr><td>Interest expense</td><td>​ ​</td><td></td><td>( 114,340 )</td><td>​ ​</td><td></td><td>( 130,930 )</td><td>​ ​</td><td></td><td>( 127,083 )</td><td>​ ​</td></tr><tr><td>Other income, net</td><td>​ ​</td><td></td><td>3,865</td><td>​ ​</td><td></td><td>23,242</td><td>​ ​</td><td></td><td>20,899</td><td>​ ​</td></tr><tr><td>Total other expense, net</td><td>​ ​</td><td></td><td>( 62,514 )</td><td>​ ​</td><td></td><td>( 63,760 )</td><td>​ ​</td><td></td><td>( 88,579 )</td><td>​ ​</td></tr><tr><td>INCOME BEFORE INCOME TAXES</td><td>​ ​</td><td></td><td>432,143</td><td>​ ​</td><td></td><td>40,309</td><td>​ ​</td><td></td><td>92,583</td><td>​ ​</td></tr><tr><td>PROVISION FOR INCOME TAXES</td><td>​ ​</td><td></td><td>109,181</td><td>​ ​</td><td></td><td>5,967</td><td>​ ​</td><td></td><td>19,630</td><td>​ ​</td></tr><tr><td>NET INCOME</td><td>​ ​</td><td>$</td><td>322,962</td><td>​ ​</td><td>$</td><td>34,342</td><td>​ ​</td><td>$</td><td>72,953</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>BASIC EARNINGS PER SHARE</td><td>​ ​</td><td>$</td><td>8.02</td><td>​ ​</td><td>$</td><td>0.78</td><td>​ ​</td><td>$</td><td>1.44</td><td>​ ​</td></tr><tr><td>DILUTED EARNINGS PER SHARE</td><td>​ ​</td><td>$</td><td>7.77</td><td>​ ​</td><td>$</td><td>0.77</td><td>​ ​</td><td>$</td><td>1.44</td><td>​ ​</td></tr><tr><td>Weighted average common shares:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Basic</td><td>​ ​</td><td></td><td>40,262</td><td>​ ​</td><td></td><td>43,940</td><td>​ ​</td><td></td><td>50,548</td><td>​ ​</td></tr><tr><td>Diluted</td><td>​ ​</td><td></td><td>41,547</td><td>​ ​</td><td></td><td>44,599</td><td>​ ​</td><td></td><td>50,644</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>COMPREHENSIVE INCOME:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Net income</td><td>​ ​</td><td>$</td><td>322,962</td><td>​ ​</td><td>$</td><td>34,342</td><td>​ ​</td><td>$</td><td>72,953</td><td>​ ​</td></tr><tr><td>Net unrealized appreciation (depreciation) on marketable securities, net ofΒ taxes</td><td>​ ​</td><td></td><td>( 157 )</td><td>​ ​</td><td></td><td>4,127</td><td>​ ​</td><td></td><td>( 3,802 )</td><td>​ ​</td></tr><tr><td>TOTAL COMPREHENSIVE INCOME</td><td>​ ​</td><td>$</td><td>322,805</td><td>​ ​</td><td>$</td><td>38,469</td><td>​ ​</td><td>$</td><td>69,151</td><td>​ ​</td></tr></table>
table
44599
sharesItemType
table: <entity> 44599 </entity> <entity type> sharesItemType </entity type> <context> Diluted | ​ ​ | 41,547 | ​ ​ | 44,599 | ​ ​ | 50,644 | ​ ​ </context>
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Year Ended DecemberΒ 31,</td></tr><tr><td>​ ​</td><td></td><td>2024</td><td>​ ​</td><td>2023</td><td>​ ​</td><td>​ ​</td><td>2022</td><td></td></tr><tr><td>OPERATING REVENUES:</td><td>​ ​</td><td>​ ​</td><td></td><td></td><td>​ ​</td><td></td><td></td><td>​ ​</td><td></td><td>​ ​</td></tr><tr><td>Flying agreements</td><td>​ ​</td><td>$</td><td>3,412,798</td><td>​ ​</td><td>$</td><td>2,834,397</td><td>​ ​</td><td>$</td><td>2,899,837</td><td>​ ​</td></tr><tr><td>Lease, airport services and other</td><td>​ ​</td><td></td><td>115,122</td><td>​ ​</td><td></td><td>101,035</td><td>​ ​</td><td></td><td>105,088</td><td>​ ​</td></tr><tr><td>Total operating revenues</td><td>​ ​</td><td></td><td>3,527,920</td><td>​ ​</td><td></td><td>2,935,432</td><td>​ ​</td><td></td><td>3,004,925</td><td>​ ​</td></tr><tr><td>OPERATING EXPENSES:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Salaries, wages and benefits</td><td>​ ​</td><td></td><td>1,463,932</td><td>​ ​</td><td></td><td>1,322,615</td><td>​ ​</td><td></td><td>1,211,551</td><td>​ ​</td></tr><tr><td>Aircraft maintenance, materials and repairs</td><td>​ ​</td><td></td><td>712,642</td><td>​ ​</td><td></td><td>673,453</td><td>​ ​</td><td></td><td>644,157</td><td>​ ​</td></tr><tr><td>Depreciation and amortization</td><td>​ ​</td><td></td><td>383,880</td><td>​ ​</td><td></td><td>383,115</td><td>​ ​</td><td></td><td>394,552</td><td>​ ​</td></tr><tr><td>Aircraft fuel</td><td>​ ​</td><td></td><td>87,409</td><td>​ ​</td><td></td><td>85,913</td><td>​ ​</td><td></td><td>108,456</td><td>​ ​</td></tr><tr><td>Airport-related expenses</td><td>​ ​</td><td></td><td>85,836</td><td>​ ​</td><td></td><td>72,640</td><td>​ ​</td><td></td><td>71,549</td><td>​ ​</td></tr><tr><td>Aircraft rentals</td><td>​ ​</td><td></td><td>5,257</td><td>​ ​</td><td></td><td>25,507</td><td>​ ​</td><td></td><td>75,353</td><td>​ ​</td></tr><tr><td>Other operating expenses</td><td>​ ​</td><td></td><td>294,307</td><td>​ ​</td><td></td><td>268,120</td><td>​ ​</td><td></td><td>318,145</td><td>​ ​</td></tr><tr><td>Total operating expenses</td><td>​ ​</td><td></td><td>3,033,263</td><td>​ ​</td><td></td><td>2,831,363</td><td>​ ​</td><td></td><td>2,823,763</td><td>​ ​</td></tr><tr><td>OPERATING INCOME</td><td>​ ​</td><td></td><td>494,657</td><td>​ ​</td><td></td><td>104,069</td><td>​ ​</td><td></td><td>181,162</td><td>​ ​</td></tr><tr><td>OTHER INCOME (EXPENSE):</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Interest income</td><td>​ ​</td><td></td><td>47,961</td><td>​ ​</td><td></td><td>43,928</td><td>​ ​</td><td></td><td>17,605</td><td>​ ​</td></tr><tr><td>Interest expense</td><td>​ ​</td><td></td><td>( 114,340 )</td><td>​ ​</td><td></td><td>( 130,930 )</td><td>​ ​</td><td></td><td>( 127,083 )</td><td>​ ​</td></tr><tr><td>Other income, net</td><td>​ ​</td><td></td><td>3,865</td><td>​ ​</td><td></td><td>23,242</td><td>​ ​</td><td></td><td>20,899</td><td>​ ​</td></tr><tr><td>Total other expense, net</td><td>​ ​</td><td></td><td>( 62,514 )</td><td>​ ​</td><td></td><td>( 63,760 )</td><td>​ ​</td><td></td><td>( 88,579 )</td><td>​ ​</td></tr><tr><td>INCOME BEFORE INCOME TAXES</td><td>​ ​</td><td></td><td>432,143</td><td>​ ​</td><td></td><td>40,309</td><td>​ ​</td><td></td><td>92,583</td><td>​ ​</td></tr><tr><td>PROVISION FOR INCOME TAXES</td><td>​ ​</td><td></td><td>109,181</td><td>​ ​</td><td></td><td>5,967</td><td>​ ​</td><td></td><td>19,630</td><td>​ ​</td></tr><tr><td>NET INCOME</td><td>​ ​</td><td>$</td><td>322,962</td><td>​ ​</td><td>$</td><td>34,342</td><td>​ ​</td><td>$</td><td>72,953</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>BASIC EARNINGS PER SHARE</td><td>​ ​</td><td>$</td><td>8.02</td><td>​ ​</td><td>$</td><td>0.78</td><td>​ ​</td><td>$</td><td>1.44</td><td>​ ​</td></tr><tr><td>DILUTED EARNINGS PER SHARE</td><td>​ ​</td><td>$</td><td>7.77</td><td>​ ​</td><td>$</td><td>0.77</td><td>​ ​</td><td>$</td><td>1.44</td><td>​ ​</td></tr><tr><td>Weighted average common shares:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Basic</td><td>​ ​</td><td></td><td>40,262</td><td>​ ​</td><td></td><td>43,940</td><td>​ ​</td><td></td><td>50,548</td><td>​ ​</td></tr><tr><td>Diluted</td><td>​ ​</td><td></td><td>41,547</td><td>​ ​</td><td></td><td>44,599</td><td>​ ​</td><td></td><td>50,644</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>COMPREHENSIVE INCOME:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Net income</td><td>​ ​</td><td>$</td><td>322,962</td><td>​ ​</td><td>$</td><td>34,342</td><td>​ ​</td><td>$</td><td>72,953</td><td>​ ​</td></tr><tr><td>Net unrealized appreciation (depreciation) on marketable securities, net ofΒ taxes</td><td>​ ​</td><td></td><td>( 157 )</td><td>​ ​</td><td></td><td>4,127</td><td>​ ​</td><td></td><td>( 3,802 )</td><td>​ ​</td></tr><tr><td>TOTAL COMPREHENSIVE INCOME</td><td>​ ​</td><td>$</td><td>322,805</td><td>​ ​</td><td>$</td><td>38,469</td><td>​ ​</td><td>$</td><td>69,151</td><td>​ ​</td></tr></table>
table
50644
sharesItemType
table: <entity> 50644 </entity> <entity type> sharesItemType </entity type> <context> Diluted | ​ ​ | 41,547 | ​ ​ | 44,599 | ​ ​ | 50,644 | ​ ​ </context>
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Year Ended DecemberΒ 31,</td></tr><tr><td>​ ​</td><td></td><td>2024</td><td>​ ​</td><td>2023</td><td>​ ​</td><td>​ ​</td><td>2022</td><td></td></tr><tr><td>OPERATING REVENUES:</td><td>​ ​</td><td>​ ​</td><td></td><td></td><td>​ ​</td><td></td><td></td><td>​ ​</td><td></td><td>​ ​</td></tr><tr><td>Flying agreements</td><td>​ ​</td><td>$</td><td>3,412,798</td><td>​ ​</td><td>$</td><td>2,834,397</td><td>​ ​</td><td>$</td><td>2,899,837</td><td>​ ​</td></tr><tr><td>Lease, airport services and other</td><td>​ ​</td><td></td><td>115,122</td><td>​ ​</td><td></td><td>101,035</td><td>​ ​</td><td></td><td>105,088</td><td>​ ​</td></tr><tr><td>Total operating revenues</td><td>​ ​</td><td></td><td>3,527,920</td><td>​ ​</td><td></td><td>2,935,432</td><td>​ ​</td><td></td><td>3,004,925</td><td>​ ​</td></tr><tr><td>OPERATING EXPENSES:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Salaries, wages and benefits</td><td>​ ​</td><td></td><td>1,463,932</td><td>​ ​</td><td></td><td>1,322,615</td><td>​ ​</td><td></td><td>1,211,551</td><td>​ ​</td></tr><tr><td>Aircraft maintenance, materials and repairs</td><td>​ ​</td><td></td><td>712,642</td><td>​ ​</td><td></td><td>673,453</td><td>​ ​</td><td></td><td>644,157</td><td>​ ​</td></tr><tr><td>Depreciation and amortization</td><td>​ ​</td><td></td><td>383,880</td><td>​ ​</td><td></td><td>383,115</td><td>​ ​</td><td></td><td>394,552</td><td>​ ​</td></tr><tr><td>Aircraft fuel</td><td>​ ​</td><td></td><td>87,409</td><td>​ ​</td><td></td><td>85,913</td><td>​ ​</td><td></td><td>108,456</td><td>​ ​</td></tr><tr><td>Airport-related expenses</td><td>​ ​</td><td></td><td>85,836</td><td>​ ​</td><td></td><td>72,640</td><td>​ ​</td><td></td><td>71,549</td><td>​ ​</td></tr><tr><td>Aircraft rentals</td><td>​ ​</td><td></td><td>5,257</td><td>​ ​</td><td></td><td>25,507</td><td>​ ​</td><td></td><td>75,353</td><td>​ ​</td></tr><tr><td>Other operating expenses</td><td>​ ​</td><td></td><td>294,307</td><td>​ ​</td><td></td><td>268,120</td><td>​ ​</td><td></td><td>318,145</td><td>​ ​</td></tr><tr><td>Total operating expenses</td><td>​ ​</td><td></td><td>3,033,263</td><td>​ ​</td><td></td><td>2,831,363</td><td>​ ​</td><td></td><td>2,823,763</td><td>​ ​</td></tr><tr><td>OPERATING INCOME</td><td>​ ​</td><td></td><td>494,657</td><td>​ ​</td><td></td><td>104,069</td><td>​ ​</td><td></td><td>181,162</td><td>​ ​</td></tr><tr><td>OTHER INCOME (EXPENSE):</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Interest income</td><td>​ ​</td><td></td><td>47,961</td><td>​ ​</td><td></td><td>43,928</td><td>​ ​</td><td></td><td>17,605</td><td>​ ​</td></tr><tr><td>Interest expense</td><td>​ ​</td><td></td><td>( 114,340 )</td><td>​ ​</td><td></td><td>( 130,930 )</td><td>​ ​</td><td></td><td>( 127,083 )</td><td>​ ​</td></tr><tr><td>Other income, net</td><td>​ ​</td><td></td><td>3,865</td><td>​ ​</td><td></td><td>23,242</td><td>​ ​</td><td></td><td>20,899</td><td>​ ​</td></tr><tr><td>Total other expense, net</td><td>​ ​</td><td></td><td>( 62,514 )</td><td>​ ​</td><td></td><td>( 63,760 )</td><td>​ ​</td><td></td><td>( 88,579 )</td><td>​ ​</td></tr><tr><td>INCOME BEFORE INCOME TAXES</td><td>​ ​</td><td></td><td>432,143</td><td>​ ​</td><td></td><td>40,309</td><td>​ ​</td><td></td><td>92,583</td><td>​ ​</td></tr><tr><td>PROVISION FOR INCOME TAXES</td><td>​ ​</td><td></td><td>109,181</td><td>​ ​</td><td></td><td>5,967</td><td>​ ​</td><td></td><td>19,630</td><td>​ ​</td></tr><tr><td>NET INCOME</td><td>​ ​</td><td>$</td><td>322,962</td><td>​ ​</td><td>$</td><td>34,342</td><td>​ ​</td><td>$</td><td>72,953</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>BASIC EARNINGS PER SHARE</td><td>​ ​</td><td>$</td><td>8.02</td><td>​ ​</td><td>$</td><td>0.78</td><td>​ ​</td><td>$</td><td>1.44</td><td>​ ​</td></tr><tr><td>DILUTED EARNINGS PER SHARE</td><td>​ ​</td><td>$</td><td>7.77</td><td>​ ​</td><td>$</td><td>0.77</td><td>​ ​</td><td>$</td><td>1.44</td><td>​ ​</td></tr><tr><td>Weighted average common shares:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Basic</td><td>​ ​</td><td></td><td>40,262</td><td>​ ​</td><td></td><td>43,940</td><td>​ ​</td><td></td><td>50,548</td><td>​ ​</td></tr><tr><td>Diluted</td><td>​ ​</td><td></td><td>41,547</td><td>​ ​</td><td></td><td>44,599</td><td>​ ​</td><td></td><td>50,644</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>COMPREHENSIVE INCOME:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Net income</td><td>​ ​</td><td>$</td><td>322,962</td><td>​ ​</td><td>$</td><td>34,342</td><td>​ ​</td><td>$</td><td>72,953</td><td>​ ​</td></tr><tr><td>Net unrealized appreciation (depreciation) on marketable securities, net ofΒ taxes</td><td>​ ​</td><td></td><td>( 157 )</td><td>​ ​</td><td></td><td>4,127</td><td>​ ​</td><td></td><td>( 3,802 )</td><td>​ ​</td></tr><tr><td>TOTAL COMPREHENSIVE INCOME</td><td>​ ​</td><td>$</td><td>322,805</td><td>​ ​</td><td>$</td><td>38,469</td><td>​ ​</td><td>$</td><td>69,151</td><td>​ ​</td></tr></table>
table
157
monetaryItemType
table: <entity> 157 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Year Ended DecemberΒ 31,</td></tr><tr><td>​ ​</td><td></td><td>2024</td><td>​ ​</td><td>2023</td><td>​ ​</td><td>​ ​</td><td>2022</td><td></td></tr><tr><td>OPERATING REVENUES:</td><td>​ ​</td><td>​ ​</td><td></td><td></td><td>​ ​</td><td></td><td></td><td>​ ​</td><td></td><td>​ ​</td></tr><tr><td>Flying agreements</td><td>​ ​</td><td>$</td><td>3,412,798</td><td>​ ​</td><td>$</td><td>2,834,397</td><td>​ ​</td><td>$</td><td>2,899,837</td><td>​ ​</td></tr><tr><td>Lease, airport services and other</td><td>​ ​</td><td></td><td>115,122</td><td>​ ​</td><td></td><td>101,035</td><td>​ ​</td><td></td><td>105,088</td><td>​ ​</td></tr><tr><td>Total operating revenues</td><td>​ ​</td><td></td><td>3,527,920</td><td>​ ​</td><td></td><td>2,935,432</td><td>​ ​</td><td></td><td>3,004,925</td><td>​ ​</td></tr><tr><td>OPERATING EXPENSES:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Salaries, wages and benefits</td><td>​ ​</td><td></td><td>1,463,932</td><td>​ ​</td><td></td><td>1,322,615</td><td>​ ​</td><td></td><td>1,211,551</td><td>​ ​</td></tr><tr><td>Aircraft maintenance, materials and repairs</td><td>​ ​</td><td></td><td>712,642</td><td>​ ​</td><td></td><td>673,453</td><td>​ ​</td><td></td><td>644,157</td><td>​ ​</td></tr><tr><td>Depreciation and amortization</td><td>​ ​</td><td></td><td>383,880</td><td>​ ​</td><td></td><td>383,115</td><td>​ ​</td><td></td><td>394,552</td><td>​ ​</td></tr><tr><td>Aircraft fuel</td><td>​ ​</td><td></td><td>87,409</td><td>​ ​</td><td></td><td>85,913</td><td>​ ​</td><td></td><td>108,456</td><td>​ ​</td></tr><tr><td>Airport-related expenses</td><td>​ ​</td><td></td><td>85,836</td><td>​ ​</td><td></td><td>72,640</td><td>​ ​</td><td></td><td>71,549</td><td>​ ​</td></tr><tr><td>Aircraft rentals</td><td>​ ​</td><td></td><td>5,257</td><td>​ ​</td><td></td><td>25,507</td><td>​ ​</td><td></td><td>75,353</td><td>​ ​</td></tr><tr><td>Other operating expenses</td><td>​ ​</td><td></td><td>294,307</td><td>​ ​</td><td></td><td>268,120</td><td>​ ​</td><td></td><td>318,145</td><td>​ ​</td></tr><tr><td>Total operating expenses</td><td>​ ​</td><td></td><td>3,033,263</td><td>​ ​</td><td></td><td>2,831,363</td><td>​ ​</td><td></td><td>2,823,763</td><td>​ ​</td></tr><tr><td>OPERATING INCOME</td><td>​ ​</td><td></td><td>494,657</td><td>​ ​</td><td></td><td>104,069</td><td>​ ​</td><td></td><td>181,162</td><td>​ ​</td></tr><tr><td>OTHER INCOME (EXPENSE):</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Interest income</td><td>​ ​</td><td></td><td>47,961</td><td>​ ​</td><td></td><td>43,928</td><td>​ ​</td><td></td><td>17,605</td><td>​ ​</td></tr><tr><td>Interest expense</td><td>​ ​</td><td></td><td>( 114,340 )</td><td>​ ​</td><td></td><td>( 130,930 )</td><td>​ ​</td><td></td><td>( 127,083 )</td><td>​ ​</td></tr><tr><td>Other income, net</td><td>​ ​</td><td></td><td>3,865</td><td>​ ​</td><td></td><td>23,242</td><td>​ ​</td><td></td><td>20,899</td><td>​ ​</td></tr><tr><td>Total other expense, net</td><td>​ ​</td><td></td><td>( 62,514 )</td><td>​ ​</td><td></td><td>( 63,760 )</td><td>​ ​</td><td></td><td>( 88,579 )</td><td>​ ​</td></tr><tr><td>INCOME BEFORE INCOME TAXES</td><td>​ ​</td><td></td><td>432,143</td><td>​ ​</td><td></td><td>40,309</td><td>​ ​</td><td></td><td>92,583</td><td>​ ​</td></tr><tr><td>PROVISION FOR INCOME TAXES</td><td>​ ​</td><td></td><td>109,181</td><td>​ ​</td><td></td><td>5,967</td><td>​ ​</td><td></td><td>19,630</td><td>​ ​</td></tr><tr><td>NET INCOME</td><td>​ ​</td><td>$</td><td>322,962</td><td>​ ​</td><td>$</td><td>34,342</td><td>​ ​</td><td>$</td><td>72,953</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>BASIC EARNINGS PER SHARE</td><td>​ ​</td><td>$</td><td>8.02</td><td>​ ​</td><td>$</td><td>0.78</td><td>​ ​</td><td>$</td><td>1.44</td><td>​ ​</td></tr><tr><td>DILUTED EARNINGS PER SHARE</td><td>​ ​</td><td>$</td><td>7.77</td><td>​ ​</td><td>$</td><td>0.77</td><td>​ ​</td><td>$</td><td>1.44</td><td>​ ​</td></tr><tr><td>Weighted average common shares:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Basic</td><td>​ ​</td><td></td><td>40,262</td><td>​ ​</td><td></td><td>43,940</td><td>​ ​</td><td></td><td>50,548</td><td>​ ​</td></tr><tr><td>Diluted</td><td>​ ​</td><td></td><td>41,547</td><td>​ ​</td><td></td><td>44,599</td><td>​ ​</td><td></td><td>50,644</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>COMPREHENSIVE INCOME:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Net income</td><td>​ ​</td><td>$</td><td>322,962</td><td>​ ​</td><td>$</td><td>34,342</td><td>​ ​</td><td>$</td><td>72,953</td><td>​ ​</td></tr><tr><td>Net unrealized appreciation (depreciation) on marketable securities, net ofΒ taxes</td><td>​ ​</td><td></td><td>( 157 )</td><td>​ ​</td><td></td><td>4,127</td><td>​ ​</td><td></td><td>( 3,802 )</td><td>​ ​</td></tr><tr><td>TOTAL COMPREHENSIVE INCOME</td><td>​ ​</td><td>$</td><td>322,805</td><td>​ ​</td><td>$</td><td>38,469</td><td>​ ​</td><td>$</td><td>69,151</td><td>​ ​</td></tr></table>
table
4127
monetaryItemType
table: <entity> 4127 </entity> <entity type> monetaryItemType </entity type> <context> Net unrealized appreciation (depreciation) on marketable securities, net ofΒ taxes | ​ ​ | ( 157 ) | ​ ​ | 4,127 | ​ ​ | ( 3,802 ) | ​ ​ </context>
us-gaap:OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Year Ended DecemberΒ 31,</td></tr><tr><td>​ ​</td><td></td><td>2024</td><td>​ ​</td><td>2023</td><td>​ ​</td><td>​ ​</td><td>2022</td><td></td></tr><tr><td>OPERATING REVENUES:</td><td>​ ​</td><td>​ ​</td><td></td><td></td><td>​ ​</td><td></td><td></td><td>​ ​</td><td></td><td>​ ​</td></tr><tr><td>Flying agreements</td><td>​ ​</td><td>$</td><td>3,412,798</td><td>​ ​</td><td>$</td><td>2,834,397</td><td>​ ​</td><td>$</td><td>2,899,837</td><td>​ ​</td></tr><tr><td>Lease, airport services and other</td><td>​ ​</td><td></td><td>115,122</td><td>​ ​</td><td></td><td>101,035</td><td>​ ​</td><td></td><td>105,088</td><td>​ ​</td></tr><tr><td>Total operating revenues</td><td>​ ​</td><td></td><td>3,527,920</td><td>​ ​</td><td></td><td>2,935,432</td><td>​ ​</td><td></td><td>3,004,925</td><td>​ ​</td></tr><tr><td>OPERATING EXPENSES:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Salaries, wages and benefits</td><td>​ ​</td><td></td><td>1,463,932</td><td>​ ​</td><td></td><td>1,322,615</td><td>​ ​</td><td></td><td>1,211,551</td><td>​ ​</td></tr><tr><td>Aircraft maintenance, materials and repairs</td><td>​ ​</td><td></td><td>712,642</td><td>​ ​</td><td></td><td>673,453</td><td>​ ​</td><td></td><td>644,157</td><td>​ ​</td></tr><tr><td>Depreciation and amortization</td><td>​ ​</td><td></td><td>383,880</td><td>​ ​</td><td></td><td>383,115</td><td>​ ​</td><td></td><td>394,552</td><td>​ ​</td></tr><tr><td>Aircraft fuel</td><td>​ ​</td><td></td><td>87,409</td><td>​ ​</td><td></td><td>85,913</td><td>​ ​</td><td></td><td>108,456</td><td>​ ​</td></tr><tr><td>Airport-related expenses</td><td>​ ​</td><td></td><td>85,836</td><td>​ ​</td><td></td><td>72,640</td><td>​ ​</td><td></td><td>71,549</td><td>​ ​</td></tr><tr><td>Aircraft rentals</td><td>​ ​</td><td></td><td>5,257</td><td>​ ​</td><td></td><td>25,507</td><td>​ ​</td><td></td><td>75,353</td><td>​ ​</td></tr><tr><td>Other operating expenses</td><td>​ ​</td><td></td><td>294,307</td><td>​ ​</td><td></td><td>268,120</td><td>​ ​</td><td></td><td>318,145</td><td>​ ​</td></tr><tr><td>Total operating expenses</td><td>​ ​</td><td></td><td>3,033,263</td><td>​ ​</td><td></td><td>2,831,363</td><td>​ ​</td><td></td><td>2,823,763</td><td>​ ​</td></tr><tr><td>OPERATING INCOME</td><td>​ ​</td><td></td><td>494,657</td><td>​ ​</td><td></td><td>104,069</td><td>​ ​</td><td></td><td>181,162</td><td>​ ​</td></tr><tr><td>OTHER INCOME (EXPENSE):</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Interest income</td><td>​ ​</td><td></td><td>47,961</td><td>​ ​</td><td></td><td>43,928</td><td>​ ​</td><td></td><td>17,605</td><td>​ ​</td></tr><tr><td>Interest expense</td><td>​ ​</td><td></td><td>( 114,340 )</td><td>​ ​</td><td></td><td>( 130,930 )</td><td>​ ​</td><td></td><td>( 127,083 )</td><td>​ ​</td></tr><tr><td>Other income, net</td><td>​ ​</td><td></td><td>3,865</td><td>​ ​</td><td></td><td>23,242</td><td>​ ​</td><td></td><td>20,899</td><td>​ ​</td></tr><tr><td>Total other expense, net</td><td>​ ​</td><td></td><td>( 62,514 )</td><td>​ ​</td><td></td><td>( 63,760 )</td><td>​ ​</td><td></td><td>( 88,579 )</td><td>​ ​</td></tr><tr><td>INCOME BEFORE INCOME TAXES</td><td>​ ​</td><td></td><td>432,143</td><td>​ ​</td><td></td><td>40,309</td><td>​ ​</td><td></td><td>92,583</td><td>​ ​</td></tr><tr><td>PROVISION FOR INCOME TAXES</td><td>​ ​</td><td></td><td>109,181</td><td>​ ​</td><td></td><td>5,967</td><td>​ ​</td><td></td><td>19,630</td><td>​ ​</td></tr><tr><td>NET INCOME</td><td>​ ​</td><td>$</td><td>322,962</td><td>​ ​</td><td>$</td><td>34,342</td><td>​ ​</td><td>$</td><td>72,953</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>BASIC EARNINGS PER SHARE</td><td>​ ​</td><td>$</td><td>8.02</td><td>​ ​</td><td>$</td><td>0.78</td><td>​ ​</td><td>$</td><td>1.44</td><td>​ ​</td></tr><tr><td>DILUTED EARNINGS PER SHARE</td><td>​ ​</td><td>$</td><td>7.77</td><td>​ ​</td><td>$</td><td>0.77</td><td>​ ​</td><td>$</td><td>1.44</td><td>​ ​</td></tr><tr><td>Weighted average common shares:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Basic</td><td>​ ​</td><td></td><td>40,262</td><td>​ ​</td><td></td><td>43,940</td><td>​ ​</td><td></td><td>50,548</td><td>​ ​</td></tr><tr><td>Diluted</td><td>​ ​</td><td></td><td>41,547</td><td>​ ​</td><td></td><td>44,599</td><td>​ ​</td><td></td><td>50,644</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>COMPREHENSIVE INCOME:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Net income</td><td>​ ​</td><td>$</td><td>322,962</td><td>​ ​</td><td>$</td><td>34,342</td><td>​ ​</td><td>$</td><td>72,953</td><td>​ ​</td></tr><tr><td>Net unrealized appreciation (depreciation) on marketable securities, net ofΒ taxes</td><td>​ ​</td><td></td><td>( 157 )</td><td>​ ​</td><td></td><td>4,127</td><td>​ ​</td><td></td><td>( 3,802 )</td><td>​ ​</td></tr><tr><td>TOTAL COMPREHENSIVE INCOME</td><td>​ ​</td><td>$</td><td>322,805</td><td>​ ​</td><td>$</td><td>38,469</td><td>​ ​</td><td>$</td><td>69,151</td><td>​ ​</td></tr></table>
table
3802
monetaryItemType
table: <entity> 3802 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Year Ended DecemberΒ 31,</td></tr><tr><td>​ ​</td><td></td><td>2024</td><td>​ ​</td><td>2023</td><td>​ ​</td><td>​ ​</td><td>2022</td><td></td></tr><tr><td>OPERATING REVENUES:</td><td>​ ​</td><td>​ ​</td><td></td><td></td><td>​ ​</td><td></td><td></td><td>​ ​</td><td></td><td>​ ​</td></tr><tr><td>Flying agreements</td><td>​ ​</td><td>$</td><td>3,412,798</td><td>​ ​</td><td>$</td><td>2,834,397</td><td>​ ​</td><td>$</td><td>2,899,837</td><td>​ ​</td></tr><tr><td>Lease, airport services and other</td><td>​ ​</td><td></td><td>115,122</td><td>​ ​</td><td></td><td>101,035</td><td>​ ​</td><td></td><td>105,088</td><td>​ ​</td></tr><tr><td>Total operating revenues</td><td>​ ​</td><td></td><td>3,527,920</td><td>​ ​</td><td></td><td>2,935,432</td><td>​ ​</td><td></td><td>3,004,925</td><td>​ ​</td></tr><tr><td>OPERATING EXPENSES:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Salaries, wages and benefits</td><td>​ ​</td><td></td><td>1,463,932</td><td>​ ​</td><td></td><td>1,322,615</td><td>​ ​</td><td></td><td>1,211,551</td><td>​ ​</td></tr><tr><td>Aircraft maintenance, materials and repairs</td><td>​ ​</td><td></td><td>712,642</td><td>​ ​</td><td></td><td>673,453</td><td>​ ​</td><td></td><td>644,157</td><td>​ ​</td></tr><tr><td>Depreciation and amortization</td><td>​ ​</td><td></td><td>383,880</td><td>​ ​</td><td></td><td>383,115</td><td>​ ​</td><td></td><td>394,552</td><td>​ ​</td></tr><tr><td>Aircraft fuel</td><td>​ ​</td><td></td><td>87,409</td><td>​ ​</td><td></td><td>85,913</td><td>​ ​</td><td></td><td>108,456</td><td>​ ​</td></tr><tr><td>Airport-related expenses</td><td>​ ​</td><td></td><td>85,836</td><td>​ ​</td><td></td><td>72,640</td><td>​ ​</td><td></td><td>71,549</td><td>​ ​</td></tr><tr><td>Aircraft rentals</td><td>​ ​</td><td></td><td>5,257</td><td>​ ​</td><td></td><td>25,507</td><td>​ ​</td><td></td><td>75,353</td><td>​ ​</td></tr><tr><td>Other operating expenses</td><td>​ ​</td><td></td><td>294,307</td><td>​ ​</td><td></td><td>268,120</td><td>​ ​</td><td></td><td>318,145</td><td>​ ​</td></tr><tr><td>Total operating expenses</td><td>​ ​</td><td></td><td>3,033,263</td><td>​ ​</td><td></td><td>2,831,363</td><td>​ ​</td><td></td><td>2,823,763</td><td>​ ​</td></tr><tr><td>OPERATING INCOME</td><td>​ ​</td><td></td><td>494,657</td><td>​ ​</td><td></td><td>104,069</td><td>​ ​</td><td></td><td>181,162</td><td>​ ​</td></tr><tr><td>OTHER INCOME (EXPENSE):</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Interest income</td><td>​ ​</td><td></td><td>47,961</td><td>​ ​</td><td></td><td>43,928</td><td>​ ​</td><td></td><td>17,605</td><td>​ ​</td></tr><tr><td>Interest expense</td><td>​ ​</td><td></td><td>( 114,340 )</td><td>​ ​</td><td></td><td>( 130,930 )</td><td>​ ​</td><td></td><td>( 127,083 )</td><td>​ ​</td></tr><tr><td>Other income, net</td><td>​ ​</td><td></td><td>3,865</td><td>​ ​</td><td></td><td>23,242</td><td>​ ​</td><td></td><td>20,899</td><td>​ ​</td></tr><tr><td>Total other expense, net</td><td>​ ​</td><td></td><td>( 62,514 )</td><td>​ ​</td><td></td><td>( 63,760 )</td><td>​ ​</td><td></td><td>( 88,579 )</td><td>​ ​</td></tr><tr><td>INCOME BEFORE INCOME TAXES</td><td>​ ​</td><td></td><td>432,143</td><td>​ ​</td><td></td><td>40,309</td><td>​ ​</td><td></td><td>92,583</td><td>​ ​</td></tr><tr><td>PROVISION FOR INCOME TAXES</td><td>​ ​</td><td></td><td>109,181</td><td>​ ​</td><td></td><td>5,967</td><td>​ ​</td><td></td><td>19,630</td><td>​ ​</td></tr><tr><td>NET INCOME</td><td>​ ​</td><td>$</td><td>322,962</td><td>​ ​</td><td>$</td><td>34,342</td><td>​ ​</td><td>$</td><td>72,953</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>BASIC EARNINGS PER SHARE</td><td>​ ​</td><td>$</td><td>8.02</td><td>​ ​</td><td>$</td><td>0.78</td><td>​ ​</td><td>$</td><td>1.44</td><td>​ ​</td></tr><tr><td>DILUTED EARNINGS PER SHARE</td><td>​ ​</td><td>$</td><td>7.77</td><td>​ ​</td><td>$</td><td>0.77</td><td>​ ​</td><td>$</td><td>1.44</td><td>​ ​</td></tr><tr><td>Weighted average common shares:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Basic</td><td>​ ​</td><td></td><td>40,262</td><td>​ ​</td><td></td><td>43,940</td><td>​ ​</td><td></td><td>50,548</td><td>​ ​</td></tr><tr><td>Diluted</td><td>​ ​</td><td></td><td>41,547</td><td>​ ​</td><td></td><td>44,599</td><td>​ ​</td><td></td><td>50,644</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>COMPREHENSIVE INCOME:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Net income</td><td>​ ​</td><td>$</td><td>322,962</td><td>​ ​</td><td>$</td><td>34,342</td><td>​ ​</td><td>$</td><td>72,953</td><td>​ ​</td></tr><tr><td>Net unrealized appreciation (depreciation) on marketable securities, net ofΒ taxes</td><td>​ ​</td><td></td><td>( 157 )</td><td>​ ​</td><td></td><td>4,127</td><td>​ ​</td><td></td><td>( 3,802 )</td><td>​ ​</td></tr><tr><td>TOTAL COMPREHENSIVE INCOME</td><td>​ ​</td><td>$</td><td>322,805</td><td>​ ​</td><td>$</td><td>38,469</td><td>​ ​</td><td>$</td><td>69,151</td><td>​ ​</td></tr></table>
table
322805
monetaryItemType
table: <entity> 322805 </entity> <entity type> monetaryItemType </entity type> <context> TOTAL COMPREHENSIVE INCOME | ​ ​ | $ | 322,805 | ​ ​ | $ | 38,469 | ​ ​ | $ | 69,151 | ​ ​ </context>
us-gaap:ComprehensiveIncomeNetOfTax
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Year Ended DecemberΒ 31,</td></tr><tr><td>​ ​</td><td></td><td>2024</td><td>​ ​</td><td>2023</td><td>​ ​</td><td>​ ​</td><td>2022</td><td></td></tr><tr><td>OPERATING REVENUES:</td><td>​ ​</td><td>​ ​</td><td></td><td></td><td>​ ​</td><td></td><td></td><td>​ ​</td><td></td><td>​ ​</td></tr><tr><td>Flying agreements</td><td>​ ​</td><td>$</td><td>3,412,798</td><td>​ ​</td><td>$</td><td>2,834,397</td><td>​ ​</td><td>$</td><td>2,899,837</td><td>​ ​</td></tr><tr><td>Lease, airport services and other</td><td>​ ​</td><td></td><td>115,122</td><td>​ ​</td><td></td><td>101,035</td><td>​ ​</td><td></td><td>105,088</td><td>​ ​</td></tr><tr><td>Total operating revenues</td><td>​ ​</td><td></td><td>3,527,920</td><td>​ ​</td><td></td><td>2,935,432</td><td>​ ​</td><td></td><td>3,004,925</td><td>​ ​</td></tr><tr><td>OPERATING EXPENSES:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Salaries, wages and benefits</td><td>​ ​</td><td></td><td>1,463,932</td><td>​ ​</td><td></td><td>1,322,615</td><td>​ ​</td><td></td><td>1,211,551</td><td>​ ​</td></tr><tr><td>Aircraft maintenance, materials and repairs</td><td>​ ​</td><td></td><td>712,642</td><td>​ ​</td><td></td><td>673,453</td><td>​ ​</td><td></td><td>644,157</td><td>​ ​</td></tr><tr><td>Depreciation and amortization</td><td>​ ​</td><td></td><td>383,880</td><td>​ ​</td><td></td><td>383,115</td><td>​ ​</td><td></td><td>394,552</td><td>​ ​</td></tr><tr><td>Aircraft fuel</td><td>​ ​</td><td></td><td>87,409</td><td>​ ​</td><td></td><td>85,913</td><td>​ ​</td><td></td><td>108,456</td><td>​ ​</td></tr><tr><td>Airport-related expenses</td><td>​ ​</td><td></td><td>85,836</td><td>​ ​</td><td></td><td>72,640</td><td>​ ​</td><td></td><td>71,549</td><td>​ ​</td></tr><tr><td>Aircraft rentals</td><td>​ ​</td><td></td><td>5,257</td><td>​ ​</td><td></td><td>25,507</td><td>​ ​</td><td></td><td>75,353</td><td>​ ​</td></tr><tr><td>Other operating expenses</td><td>​ ​</td><td></td><td>294,307</td><td>​ ​</td><td></td><td>268,120</td><td>​ ​</td><td></td><td>318,145</td><td>​ ​</td></tr><tr><td>Total operating expenses</td><td>​ ​</td><td></td><td>3,033,263</td><td>​ ​</td><td></td><td>2,831,363</td><td>​ ​</td><td></td><td>2,823,763</td><td>​ ​</td></tr><tr><td>OPERATING INCOME</td><td>​ ​</td><td></td><td>494,657</td><td>​ ​</td><td></td><td>104,069</td><td>​ ​</td><td></td><td>181,162</td><td>​ ​</td></tr><tr><td>OTHER INCOME (EXPENSE):</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Interest income</td><td>​ ​</td><td></td><td>47,961</td><td>​ ​</td><td></td><td>43,928</td><td>​ ​</td><td></td><td>17,605</td><td>​ ​</td></tr><tr><td>Interest expense</td><td>​ ​</td><td></td><td>( 114,340 )</td><td>​ ​</td><td></td><td>( 130,930 )</td><td>​ ​</td><td></td><td>( 127,083 )</td><td>​ ​</td></tr><tr><td>Other income, net</td><td>​ ​</td><td></td><td>3,865</td><td>​ ​</td><td></td><td>23,242</td><td>​ ​</td><td></td><td>20,899</td><td>​ ​</td></tr><tr><td>Total other expense, net</td><td>​ ​</td><td></td><td>( 62,514 )</td><td>​ ​</td><td></td><td>( 63,760 )</td><td>​ ​</td><td></td><td>( 88,579 )</td><td>​ ​</td></tr><tr><td>INCOME BEFORE INCOME TAXES</td><td>​ ​</td><td></td><td>432,143</td><td>​ ​</td><td></td><td>40,309</td><td>​ ​</td><td></td><td>92,583</td><td>​ ​</td></tr><tr><td>PROVISION FOR INCOME TAXES</td><td>​ ​</td><td></td><td>109,181</td><td>​ ​</td><td></td><td>5,967</td><td>​ ​</td><td></td><td>19,630</td><td>​ ​</td></tr><tr><td>NET INCOME</td><td>​ ​</td><td>$</td><td>322,962</td><td>​ ​</td><td>$</td><td>34,342</td><td>​ ​</td><td>$</td><td>72,953</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>BASIC EARNINGS PER SHARE</td><td>​ ​</td><td>$</td><td>8.02</td><td>​ ​</td><td>$</td><td>0.78</td><td>​ ​</td><td>$</td><td>1.44</td><td>​ ​</td></tr><tr><td>DILUTED EARNINGS PER SHARE</td><td>​ ​</td><td>$</td><td>7.77</td><td>​ ​</td><td>$</td><td>0.77</td><td>​ ​</td><td>$</td><td>1.44</td><td>​ ​</td></tr><tr><td>Weighted average common shares:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Basic</td><td>​ ​</td><td></td><td>40,262</td><td>​ ​</td><td></td><td>43,940</td><td>​ ​</td><td></td><td>50,548</td><td>​ ​</td></tr><tr><td>Diluted</td><td>​ ​</td><td></td><td>41,547</td><td>​ ​</td><td></td><td>44,599</td><td>​ ​</td><td></td><td>50,644</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>COMPREHENSIVE INCOME:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Net income</td><td>​ ​</td><td>$</td><td>322,962</td><td>​ ​</td><td>$</td><td>34,342</td><td>​ ​</td><td>$</td><td>72,953</td><td>​ ​</td></tr><tr><td>Net unrealized appreciation (depreciation) on marketable securities, net ofΒ taxes</td><td>​ ​</td><td></td><td>( 157 )</td><td>​ ​</td><td></td><td>4,127</td><td>​ ​</td><td></td><td>( 3,802 )</td><td>​ ​</td></tr><tr><td>TOTAL COMPREHENSIVE INCOME</td><td>​ ​</td><td>$</td><td>322,805</td><td>​ ​</td><td>$</td><td>38,469</td><td>​ ​</td><td>$</td><td>69,151</td><td>​ ​</td></tr></table>
table
38469
monetaryItemType
table: <entity> 38469 </entity> <entity type> monetaryItemType </entity type> <context> TOTAL COMPREHENSIVE INCOME | ​ ​ | $ | 322,805 | ​ ​ | $ | 38,469 | ​ ​ | $ | 69,151 | ​ ​ </context>
us-gaap:ComprehensiveIncomeNetOfTax
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Year Ended DecemberΒ 31,</td></tr><tr><td>​ ​</td><td></td><td>2024</td><td>​ ​</td><td>2023</td><td>​ ​</td><td>​ ​</td><td>2022</td><td></td></tr><tr><td>OPERATING REVENUES:</td><td>​ ​</td><td>​ ​</td><td></td><td></td><td>​ ​</td><td></td><td></td><td>​ ​</td><td></td><td>​ ​</td></tr><tr><td>Flying agreements</td><td>​ ​</td><td>$</td><td>3,412,798</td><td>​ ​</td><td>$</td><td>2,834,397</td><td>​ ​</td><td>$</td><td>2,899,837</td><td>​ ​</td></tr><tr><td>Lease, airport services and other</td><td>​ ​</td><td></td><td>115,122</td><td>​ ​</td><td></td><td>101,035</td><td>​ ​</td><td></td><td>105,088</td><td>​ ​</td></tr><tr><td>Total operating revenues</td><td>​ ​</td><td></td><td>3,527,920</td><td>​ ​</td><td></td><td>2,935,432</td><td>​ ​</td><td></td><td>3,004,925</td><td>​ ​</td></tr><tr><td>OPERATING EXPENSES:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Salaries, wages and benefits</td><td>​ ​</td><td></td><td>1,463,932</td><td>​ ​</td><td></td><td>1,322,615</td><td>​ ​</td><td></td><td>1,211,551</td><td>​ ​</td></tr><tr><td>Aircraft maintenance, materials and repairs</td><td>​ ​</td><td></td><td>712,642</td><td>​ ​</td><td></td><td>673,453</td><td>​ ​</td><td></td><td>644,157</td><td>​ ​</td></tr><tr><td>Depreciation and amortization</td><td>​ ​</td><td></td><td>383,880</td><td>​ ​</td><td></td><td>383,115</td><td>​ ​</td><td></td><td>394,552</td><td>​ ​</td></tr><tr><td>Aircraft fuel</td><td>​ ​</td><td></td><td>87,409</td><td>​ ​</td><td></td><td>85,913</td><td>​ ​</td><td></td><td>108,456</td><td>​ ​</td></tr><tr><td>Airport-related expenses</td><td>​ ​</td><td></td><td>85,836</td><td>​ ​</td><td></td><td>72,640</td><td>​ ​</td><td></td><td>71,549</td><td>​ ​</td></tr><tr><td>Aircraft rentals</td><td>​ ​</td><td></td><td>5,257</td><td>​ ​</td><td></td><td>25,507</td><td>​ ​</td><td></td><td>75,353</td><td>​ ​</td></tr><tr><td>Other operating expenses</td><td>​ ​</td><td></td><td>294,307</td><td>​ ​</td><td></td><td>268,120</td><td>​ ​</td><td></td><td>318,145</td><td>​ ​</td></tr><tr><td>Total operating expenses</td><td>​ ​</td><td></td><td>3,033,263</td><td>​ ​</td><td></td><td>2,831,363</td><td>​ ​</td><td></td><td>2,823,763</td><td>​ ​</td></tr><tr><td>OPERATING INCOME</td><td>​ ​</td><td></td><td>494,657</td><td>​ ​</td><td></td><td>104,069</td><td>​ ​</td><td></td><td>181,162</td><td>​ ​</td></tr><tr><td>OTHER INCOME (EXPENSE):</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Interest income</td><td>​ ​</td><td></td><td>47,961</td><td>​ ​</td><td></td><td>43,928</td><td>​ ​</td><td></td><td>17,605</td><td>​ ​</td></tr><tr><td>Interest expense</td><td>​ ​</td><td></td><td>( 114,340 )</td><td>​ ​</td><td></td><td>( 130,930 )</td><td>​ ​</td><td></td><td>( 127,083 )</td><td>​ ​</td></tr><tr><td>Other income, net</td><td>​ ​</td><td></td><td>3,865</td><td>​ ​</td><td></td><td>23,242</td><td>​ ​</td><td></td><td>20,899</td><td>​ ​</td></tr><tr><td>Total other expense, net</td><td>​ ​</td><td></td><td>( 62,514 )</td><td>​ ​</td><td></td><td>( 63,760 )</td><td>​ ​</td><td></td><td>( 88,579 )</td><td>​ ​</td></tr><tr><td>INCOME BEFORE INCOME TAXES</td><td>​ ​</td><td></td><td>432,143</td><td>​ ​</td><td></td><td>40,309</td><td>​ ​</td><td></td><td>92,583</td><td>​ ​</td></tr><tr><td>PROVISION FOR INCOME TAXES</td><td>​ ​</td><td></td><td>109,181</td><td>​ ​</td><td></td><td>5,967</td><td>​ ​</td><td></td><td>19,630</td><td>​ ​</td></tr><tr><td>NET INCOME</td><td>​ ​</td><td>$</td><td>322,962</td><td>​ ​</td><td>$</td><td>34,342</td><td>​ ​</td><td>$</td><td>72,953</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>BASIC EARNINGS PER SHARE</td><td>​ ​</td><td>$</td><td>8.02</td><td>​ ​</td><td>$</td><td>0.78</td><td>​ ​</td><td>$</td><td>1.44</td><td>​ ​</td></tr><tr><td>DILUTED EARNINGS PER SHARE</td><td>​ ​</td><td>$</td><td>7.77</td><td>​ ​</td><td>$</td><td>0.77</td><td>​ ​</td><td>$</td><td>1.44</td><td>​ ​</td></tr><tr><td>Weighted average common shares:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Basic</td><td>​ ​</td><td></td><td>40,262</td><td>​ ​</td><td></td><td>43,940</td><td>​ ​</td><td></td><td>50,548</td><td>​ ​</td></tr><tr><td>Diluted</td><td>​ ​</td><td></td><td>41,547</td><td>​ ​</td><td></td><td>44,599</td><td>​ ​</td><td></td><td>50,644</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>COMPREHENSIVE INCOME:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Net income</td><td>​ ​</td><td>$</td><td>322,962</td><td>​ ​</td><td>$</td><td>34,342</td><td>​ ​</td><td>$</td><td>72,953</td><td>​ ​</td></tr><tr><td>Net unrealized appreciation (depreciation) on marketable securities, net ofΒ taxes</td><td>​ ​</td><td></td><td>( 157 )</td><td>​ ​</td><td></td><td>4,127</td><td>​ ​</td><td></td><td>( 3,802 )</td><td>​ ​</td></tr><tr><td>TOTAL COMPREHENSIVE INCOME</td><td>​ ​</td><td>$</td><td>322,805</td><td>​ ​</td><td>$</td><td>38,469</td><td>​ ​</td><td>$</td><td>69,151</td><td>​ ​</td></tr></table>
table
69151
monetaryItemType
table: <entity> 69151 </entity> <entity type> monetaryItemType </entity type> <context> TOTAL COMPREHENSIVE INCOME | ​ ​ | $ | 322,805 | ​ ​ | $ | 38,469 | ​ ​ | $ | 69,151 | ​ ​ </context>
us-gaap:ComprehensiveIncomeNetOfTax
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Accumulated</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Other</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>CommonΒ Stock</td><td>​ ​</td><td>Retained</td><td>​ ​</td><td>TreasuryΒ Stock</td><td>​ ​</td><td>Comprehensive</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>Earnings</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>IncomeΒ (Loss)</td><td>​ ​</td><td>Total</td></tr><tr><td>Balance at DecemberΒ 31, 2021</td><td></td><td>82,336</td><td>​ ​</td><td>$</td><td>722,310</td><td>​ ​</td><td>$</td><td>2,163,916</td><td></td><td>( 31,956 )</td><td>​ ​</td><td>$</td><td>( 618,712 )</td><td>​ ​</td><td>$</td><td>β€”</td><td>​ ​</td><td>$</td><td>2,267,514</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>151</td><td>​ ​</td><td>​ ​</td><td>142</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>142</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 38 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>106</td><td>​ ​</td><td>​ ​</td><td>2,815</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,815</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 1,224</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 3,802 )</td><td>​ ​</td><td></td><td>( 3,802 )</td></tr><tr><td>Balance at DecemberΒ 31, 2022</td><td></td><td>82,593</td><td>​ ​</td><td>$</td><td>734,426</td><td>​ ​</td><td>$</td><td>2,236,869</td><td></td><td>( 31,994 )</td><td>​ ​</td><td>$</td><td>( 619,862 )</td><td>​ ​</td><td>$</td><td>( 3,802 )</td><td>​ ​</td><td>$</td><td>2,347,631</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>130</td><td>​ ​</td><td>​ ​</td><td>57</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>57</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 32 )</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>117</td><td>​ ​</td><td>​ ​</td><td>2,754</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,754</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td></tr><tr><td>Treasury stock purchases and related excise tax</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 10,589 )</td><td>​ ​</td><td></td><td>( 291,949 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 291,949 )</td></tr><tr><td>Net unrealized appreciation on marketable securities, net of tax of $ 1,329</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>4,127</td><td>​ ​</td><td></td><td>4,127</td></tr><tr><td>Balance at DecemberΒ 31, 2023</td><td></td><td>82,840</td><td>​ ​</td><td>$</td><td>754,362</td><td>​ ​</td><td>$</td><td>2,271,211</td><td></td><td>( 42,615 )</td><td>​ ​</td><td>$</td><td>( 912,396 )</td><td>​ ​</td><td>$</td><td>325</td><td>​ ​</td><td>$</td><td>2,113,502</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td></tr><tr><td>Vested employee stock awards</td><td></td><td>270</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 117 )</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>48</td><td>​ ​</td><td>​ ​</td><td>2,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,864</td></tr><tr><td>Issuance of common stock upon warrant exercise, net</td><td>​ ​</td><td>481</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td></tr><tr><td>Treasury stock purchases</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 578 )</td><td>​ ​</td><td></td><td>( 43,324 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>( 43,324 )</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 51</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td></tr><tr><td>Balance at DecemberΒ 31, 2024</td><td></td><td>83,639</td><td>​ ​</td><td>$</td><td>777,090</td><td>​ ​</td><td>$</td><td>2,594,173</td><td></td><td>( 43,310 )</td><td>​ ​</td><td>$</td><td>( 962,650 )</td><td>​ ​</td><td>$</td><td>168</td><td>​ ​</td><td>$</td><td>2,408,781</td></tr></table>
table
82336
sharesItemType
table: <entity> 82336 </entity> <entity type> sharesItemType </entity type> <context> Balance at DecemberΒ 31, 2021 | 82,336 | ​ ​ | $ | 722,310 | ​ ​ | $ | 2,163,916 | ( 31,956 ) | ​ ​ | $ | ( 618,712 ) | ​ ​ | $ | β€” | ​ ​ | $ | 2,267,514 </context>
us-gaap:CommonStockSharesOutstanding
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Accumulated</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Other</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>CommonΒ Stock</td><td>​ ​</td><td>Retained</td><td>​ ​</td><td>TreasuryΒ Stock</td><td>​ ​</td><td>Comprehensive</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>Earnings</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>IncomeΒ (Loss)</td><td>​ ​</td><td>Total</td></tr><tr><td>Balance at DecemberΒ 31, 2021</td><td></td><td>82,336</td><td>​ ​</td><td>$</td><td>722,310</td><td>​ ​</td><td>$</td><td>2,163,916</td><td></td><td>( 31,956 )</td><td>​ ​</td><td>$</td><td>( 618,712 )</td><td>​ ​</td><td>$</td><td>β€”</td><td>​ ​</td><td>$</td><td>2,267,514</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>151</td><td>​ ​</td><td>​ ​</td><td>142</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>142</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 38 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>106</td><td>​ ​</td><td>​ ​</td><td>2,815</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,815</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 1,224</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 3,802 )</td><td>​ ​</td><td></td><td>( 3,802 )</td></tr><tr><td>Balance at DecemberΒ 31, 2022</td><td></td><td>82,593</td><td>​ ​</td><td>$</td><td>734,426</td><td>​ ​</td><td>$</td><td>2,236,869</td><td></td><td>( 31,994 )</td><td>​ ​</td><td>$</td><td>( 619,862 )</td><td>​ ​</td><td>$</td><td>( 3,802 )</td><td>​ ​</td><td>$</td><td>2,347,631</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>130</td><td>​ ​</td><td>​ ​</td><td>57</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>57</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 32 )</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>117</td><td>​ ​</td><td>​ ​</td><td>2,754</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,754</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td></tr><tr><td>Treasury stock purchases and related excise tax</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 10,589 )</td><td>​ ​</td><td></td><td>( 291,949 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 291,949 )</td></tr><tr><td>Net unrealized appreciation on marketable securities, net of tax of $ 1,329</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>4,127</td><td>​ ​</td><td></td><td>4,127</td></tr><tr><td>Balance at DecemberΒ 31, 2023</td><td></td><td>82,840</td><td>​ ​</td><td>$</td><td>754,362</td><td>​ ​</td><td>$</td><td>2,271,211</td><td></td><td>( 42,615 )</td><td>​ ​</td><td>$</td><td>( 912,396 )</td><td>​ ​</td><td>$</td><td>325</td><td>​ ​</td><td>$</td><td>2,113,502</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td></tr><tr><td>Vested employee stock awards</td><td></td><td>270</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 117 )</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>48</td><td>​ ​</td><td>​ ​</td><td>2,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,864</td></tr><tr><td>Issuance of common stock upon warrant exercise, net</td><td>​ ​</td><td>481</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td></tr><tr><td>Treasury stock purchases</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 578 )</td><td>​ ​</td><td></td><td>( 43,324 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>( 43,324 )</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 51</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td></tr><tr><td>Balance at DecemberΒ 31, 2024</td><td></td><td>83,639</td><td>​ ​</td><td>$</td><td>777,090</td><td>​ ​</td><td>$</td><td>2,594,173</td><td></td><td>( 43,310 )</td><td>​ ​</td><td>$</td><td>( 962,650 )</td><td>​ ​</td><td>$</td><td>168</td><td>​ ​</td><td>$</td><td>2,408,781</td></tr></table>
table
722310
monetaryItemType
table: <entity> 722310 </entity> <entity type> monetaryItemType </entity type> <context> Balance at DecemberΒ 31, 2021 | 82,336 | ​ ​ | $ | 722,310 | ​ ​ | $ | 2,163,916 | ( 31,956 ) | ​ ​ | $ | ( 618,712 ) | ​ ​ | $ | β€” | ​ ​ | $ | 2,267,514 </context>
us-gaap:StockholdersEquity
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Accumulated</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Other</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>CommonΒ Stock</td><td>​ ​</td><td>Retained</td><td>​ ​</td><td>TreasuryΒ Stock</td><td>​ ​</td><td>Comprehensive</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>Earnings</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>IncomeΒ (Loss)</td><td>​ ​</td><td>Total</td></tr><tr><td>Balance at DecemberΒ 31, 2021</td><td></td><td>82,336</td><td>​ ​</td><td>$</td><td>722,310</td><td>​ ​</td><td>$</td><td>2,163,916</td><td></td><td>( 31,956 )</td><td>​ ​</td><td>$</td><td>( 618,712 )</td><td>​ ​</td><td>$</td><td>β€”</td><td>​ ​</td><td>$</td><td>2,267,514</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>151</td><td>​ ​</td><td>​ ​</td><td>142</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>142</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 38 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>106</td><td>​ ​</td><td>​ ​</td><td>2,815</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,815</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 1,224</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 3,802 )</td><td>​ ​</td><td></td><td>( 3,802 )</td></tr><tr><td>Balance at DecemberΒ 31, 2022</td><td></td><td>82,593</td><td>​ ​</td><td>$</td><td>734,426</td><td>​ ​</td><td>$</td><td>2,236,869</td><td></td><td>( 31,994 )</td><td>​ ​</td><td>$</td><td>( 619,862 )</td><td>​ ​</td><td>$</td><td>( 3,802 )</td><td>​ ​</td><td>$</td><td>2,347,631</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>130</td><td>​ ​</td><td>​ ​</td><td>57</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>57</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 32 )</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>117</td><td>​ ​</td><td>​ ​</td><td>2,754</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,754</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td></tr><tr><td>Treasury stock purchases and related excise tax</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 10,589 )</td><td>​ ​</td><td></td><td>( 291,949 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 291,949 )</td></tr><tr><td>Net unrealized appreciation on marketable securities, net of tax of $ 1,329</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>4,127</td><td>​ ​</td><td></td><td>4,127</td></tr><tr><td>Balance at DecemberΒ 31, 2023</td><td></td><td>82,840</td><td>​ ​</td><td>$</td><td>754,362</td><td>​ ​</td><td>$</td><td>2,271,211</td><td></td><td>( 42,615 )</td><td>​ ​</td><td>$</td><td>( 912,396 )</td><td>​ ​</td><td>$</td><td>325</td><td>​ ​</td><td>$</td><td>2,113,502</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td></tr><tr><td>Vested employee stock awards</td><td></td><td>270</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 117 )</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>48</td><td>​ ​</td><td>​ ​</td><td>2,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,864</td></tr><tr><td>Issuance of common stock upon warrant exercise, net</td><td>​ ​</td><td>481</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td></tr><tr><td>Treasury stock purchases</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 578 )</td><td>​ ​</td><td></td><td>( 43,324 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>( 43,324 )</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 51</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td></tr><tr><td>Balance at DecemberΒ 31, 2024</td><td></td><td>83,639</td><td>​ ​</td><td>$</td><td>777,090</td><td>​ ​</td><td>$</td><td>2,594,173</td><td></td><td>( 43,310 )</td><td>​ ​</td><td>$</td><td>( 962,650 )</td><td>​ ​</td><td>$</td><td>168</td><td>​ ​</td><td>$</td><td>2,408,781</td></tr></table>
table
2163916
monetaryItemType
table: <entity> 2163916 </entity> <entity type> monetaryItemType </entity type> <context> Balance at DecemberΒ 31, 2021 | 82,336 | ​ ​ | $ | 722,310 | ​ ​ | $ | 2,163,916 | ( 31,956 ) | ​ ​ | $ | ( 618,712 ) | ​ ​ | $ | β€” | ​ ​ | $ | 2,267,514 </context>
us-gaap:StockholdersEquity
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Accumulated</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Other</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>CommonΒ Stock</td><td>​ ​</td><td>Retained</td><td>​ ​</td><td>TreasuryΒ Stock</td><td>​ ​</td><td>Comprehensive</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>Earnings</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>IncomeΒ (Loss)</td><td>​ ​</td><td>Total</td></tr><tr><td>Balance at DecemberΒ 31, 2021</td><td></td><td>82,336</td><td>​ ​</td><td>$</td><td>722,310</td><td>​ ​</td><td>$</td><td>2,163,916</td><td></td><td>( 31,956 )</td><td>​ ​</td><td>$</td><td>( 618,712 )</td><td>​ ​</td><td>$</td><td>β€”</td><td>​ ​</td><td>$</td><td>2,267,514</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>151</td><td>​ ​</td><td>​ ​</td><td>142</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>142</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 38 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>106</td><td>​ ​</td><td>​ ​</td><td>2,815</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,815</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 1,224</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 3,802 )</td><td>​ ​</td><td></td><td>( 3,802 )</td></tr><tr><td>Balance at DecemberΒ 31, 2022</td><td></td><td>82,593</td><td>​ ​</td><td>$</td><td>734,426</td><td>​ ​</td><td>$</td><td>2,236,869</td><td></td><td>( 31,994 )</td><td>​ ​</td><td>$</td><td>( 619,862 )</td><td>​ ​</td><td>$</td><td>( 3,802 )</td><td>​ ​</td><td>$</td><td>2,347,631</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>130</td><td>​ ​</td><td>​ ​</td><td>57</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>57</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 32 )</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>117</td><td>​ ​</td><td>​ ​</td><td>2,754</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,754</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td></tr><tr><td>Treasury stock purchases and related excise tax</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 10,589 )</td><td>​ ​</td><td></td><td>( 291,949 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 291,949 )</td></tr><tr><td>Net unrealized appreciation on marketable securities, net of tax of $ 1,329</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>4,127</td><td>​ ​</td><td></td><td>4,127</td></tr><tr><td>Balance at DecemberΒ 31, 2023</td><td></td><td>82,840</td><td>​ ​</td><td>$</td><td>754,362</td><td>​ ​</td><td>$</td><td>2,271,211</td><td></td><td>( 42,615 )</td><td>​ ​</td><td>$</td><td>( 912,396 )</td><td>​ ​</td><td>$</td><td>325</td><td>​ ​</td><td>$</td><td>2,113,502</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td></tr><tr><td>Vested employee stock awards</td><td></td><td>270</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 117 )</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>48</td><td>​ ​</td><td>​ ​</td><td>2,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,864</td></tr><tr><td>Issuance of common stock upon warrant exercise, net</td><td>​ ​</td><td>481</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td></tr><tr><td>Treasury stock purchases</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 578 )</td><td>​ ​</td><td></td><td>( 43,324 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>( 43,324 )</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 51</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td></tr><tr><td>Balance at DecemberΒ 31, 2024</td><td></td><td>83,639</td><td>​ ​</td><td>$</td><td>777,090</td><td>​ ​</td><td>$</td><td>2,594,173</td><td></td><td>( 43,310 )</td><td>​ ​</td><td>$</td><td>( 962,650 )</td><td>​ ​</td><td>$</td><td>168</td><td>​ ​</td><td>$</td><td>2,408,781</td></tr></table>
table
31956
sharesItemType
table: <entity> 31956 </entity> <entity type> sharesItemType </entity type> <context> None </context>
us-gaap:TreasuryStockCommonShares
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Accumulated</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Other</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>CommonΒ Stock</td><td>​ ​</td><td>Retained</td><td>​ ​</td><td>TreasuryΒ Stock</td><td>​ ​</td><td>Comprehensive</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>Earnings</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>IncomeΒ (Loss)</td><td>​ ​</td><td>Total</td></tr><tr><td>Balance at DecemberΒ 31, 2021</td><td></td><td>82,336</td><td>​ ​</td><td>$</td><td>722,310</td><td>​ ​</td><td>$</td><td>2,163,916</td><td></td><td>( 31,956 )</td><td>​ ​</td><td>$</td><td>( 618,712 )</td><td>​ ​</td><td>$</td><td>β€”</td><td>​ ​</td><td>$</td><td>2,267,514</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>151</td><td>​ ​</td><td>​ ​</td><td>142</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>142</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 38 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>106</td><td>​ ​</td><td>​ ​</td><td>2,815</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,815</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 1,224</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 3,802 )</td><td>​ ​</td><td></td><td>( 3,802 )</td></tr><tr><td>Balance at DecemberΒ 31, 2022</td><td></td><td>82,593</td><td>​ ​</td><td>$</td><td>734,426</td><td>​ ​</td><td>$</td><td>2,236,869</td><td></td><td>( 31,994 )</td><td>​ ​</td><td>$</td><td>( 619,862 )</td><td>​ ​</td><td>$</td><td>( 3,802 )</td><td>​ ​</td><td>$</td><td>2,347,631</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>130</td><td>​ ​</td><td>​ ​</td><td>57</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>57</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 32 )</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>117</td><td>​ ​</td><td>​ ​</td><td>2,754</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,754</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td></tr><tr><td>Treasury stock purchases and related excise tax</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 10,589 )</td><td>​ ​</td><td></td><td>( 291,949 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 291,949 )</td></tr><tr><td>Net unrealized appreciation on marketable securities, net of tax of $ 1,329</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>4,127</td><td>​ ​</td><td></td><td>4,127</td></tr><tr><td>Balance at DecemberΒ 31, 2023</td><td></td><td>82,840</td><td>​ ​</td><td>$</td><td>754,362</td><td>​ ​</td><td>$</td><td>2,271,211</td><td></td><td>( 42,615 )</td><td>​ ​</td><td>$</td><td>( 912,396 )</td><td>​ ​</td><td>$</td><td>325</td><td>​ ​</td><td>$</td><td>2,113,502</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td></tr><tr><td>Vested employee stock awards</td><td></td><td>270</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 117 )</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>48</td><td>​ ​</td><td>​ ​</td><td>2,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,864</td></tr><tr><td>Issuance of common stock upon warrant exercise, net</td><td>​ ​</td><td>481</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td></tr><tr><td>Treasury stock purchases</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 578 )</td><td>​ ​</td><td></td><td>( 43,324 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>( 43,324 )</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 51</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td></tr><tr><td>Balance at DecemberΒ 31, 2024</td><td></td><td>83,639</td><td>​ ​</td><td>$</td><td>777,090</td><td>​ ​</td><td>$</td><td>2,594,173</td><td></td><td>( 43,310 )</td><td>​ ​</td><td>$</td><td>( 962,650 )</td><td>​ ​</td><td>$</td><td>168</td><td>​ ​</td><td>$</td><td>2,408,781</td></tr></table>
table
618712
monetaryItemType
table: <entity> 618712 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:StockholdersEquity
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Accumulated</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Other</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>CommonΒ Stock</td><td>​ ​</td><td>Retained</td><td>​ ​</td><td>TreasuryΒ Stock</td><td>​ ​</td><td>Comprehensive</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>Earnings</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>IncomeΒ (Loss)</td><td>​ ​</td><td>Total</td></tr><tr><td>Balance at DecemberΒ 31, 2021</td><td></td><td>82,336</td><td>​ ​</td><td>$</td><td>722,310</td><td>​ ​</td><td>$</td><td>2,163,916</td><td></td><td>( 31,956 )</td><td>​ ​</td><td>$</td><td>( 618,712 )</td><td>​ ​</td><td>$</td><td>β€”</td><td>​ ​</td><td>$</td><td>2,267,514</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>151</td><td>​ ​</td><td>​ ​</td><td>142</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>142</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 38 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>106</td><td>​ ​</td><td>​ ​</td><td>2,815</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,815</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 1,224</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 3,802 )</td><td>​ ​</td><td></td><td>( 3,802 )</td></tr><tr><td>Balance at DecemberΒ 31, 2022</td><td></td><td>82,593</td><td>​ ​</td><td>$</td><td>734,426</td><td>​ ​</td><td>$</td><td>2,236,869</td><td></td><td>( 31,994 )</td><td>​ ​</td><td>$</td><td>( 619,862 )</td><td>​ ​</td><td>$</td><td>( 3,802 )</td><td>​ ​</td><td>$</td><td>2,347,631</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>130</td><td>​ ​</td><td>​ ​</td><td>57</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>57</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 32 )</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>117</td><td>​ ​</td><td>​ ​</td><td>2,754</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,754</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td></tr><tr><td>Treasury stock purchases and related excise tax</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 10,589 )</td><td>​ ​</td><td></td><td>( 291,949 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 291,949 )</td></tr><tr><td>Net unrealized appreciation on marketable securities, net of tax of $ 1,329</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>4,127</td><td>​ ​</td><td></td><td>4,127</td></tr><tr><td>Balance at DecemberΒ 31, 2023</td><td></td><td>82,840</td><td>​ ​</td><td>$</td><td>754,362</td><td>​ ​</td><td>$</td><td>2,271,211</td><td></td><td>( 42,615 )</td><td>​ ​</td><td>$</td><td>( 912,396 )</td><td>​ ​</td><td>$</td><td>325</td><td>​ ​</td><td>$</td><td>2,113,502</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td></tr><tr><td>Vested employee stock awards</td><td></td><td>270</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 117 )</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>48</td><td>​ ​</td><td>​ ​</td><td>2,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,864</td></tr><tr><td>Issuance of common stock upon warrant exercise, net</td><td>​ ​</td><td>481</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td></tr><tr><td>Treasury stock purchases</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 578 )</td><td>​ ​</td><td></td><td>( 43,324 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>( 43,324 )</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 51</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td></tr><tr><td>Balance at DecemberΒ 31, 2024</td><td></td><td>83,639</td><td>​ ​</td><td>$</td><td>777,090</td><td>​ ​</td><td>$</td><td>2,594,173</td><td></td><td>( 43,310 )</td><td>​ ​</td><td>$</td><td>( 962,650 )</td><td>​ ​</td><td>$</td><td>168</td><td>​ ​</td><td>$</td><td>2,408,781</td></tr></table>
table
2267514
monetaryItemType
table: <entity> 2267514 </entity> <entity type> monetaryItemType </entity type> <context> Balance at DecemberΒ 31, 2021 | 82,336 | ​ ​ | $ | 722,310 | ​ ​ | $ | 2,163,916 | ( 31,956 ) | ​ ​ | $ | ( 618,712 ) | ​ ​ | $ | β€” | ​ ​ | $ | 2,267,514 </context>
us-gaap:StockholdersEquity
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Accumulated</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Other</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>CommonΒ Stock</td><td>​ ​</td><td>Retained</td><td>​ ​</td><td>TreasuryΒ Stock</td><td>​ ​</td><td>Comprehensive</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>Earnings</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>IncomeΒ (Loss)</td><td>​ ​</td><td>Total</td></tr><tr><td>Balance at DecemberΒ 31, 2021</td><td></td><td>82,336</td><td>​ ​</td><td>$</td><td>722,310</td><td>​ ​</td><td>$</td><td>2,163,916</td><td></td><td>( 31,956 )</td><td>​ ​</td><td>$</td><td>( 618,712 )</td><td>​ ​</td><td>$</td><td>β€”</td><td>​ ​</td><td>$</td><td>2,267,514</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>151</td><td>​ ​</td><td>​ ​</td><td>142</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>142</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 38 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>106</td><td>​ ​</td><td>​ ​</td><td>2,815</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,815</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 1,224</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 3,802 )</td><td>​ ​</td><td></td><td>( 3,802 )</td></tr><tr><td>Balance at DecemberΒ 31, 2022</td><td></td><td>82,593</td><td>​ ​</td><td>$</td><td>734,426</td><td>​ ​</td><td>$</td><td>2,236,869</td><td></td><td>( 31,994 )</td><td>​ ​</td><td>$</td><td>( 619,862 )</td><td>​ ​</td><td>$</td><td>( 3,802 )</td><td>​ ​</td><td>$</td><td>2,347,631</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>130</td><td>​ ​</td><td>​ ​</td><td>57</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>57</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 32 )</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>117</td><td>​ ​</td><td>​ ​</td><td>2,754</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,754</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td></tr><tr><td>Treasury stock purchases and related excise tax</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 10,589 )</td><td>​ ​</td><td></td><td>( 291,949 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 291,949 )</td></tr><tr><td>Net unrealized appreciation on marketable securities, net of tax of $ 1,329</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>4,127</td><td>​ ​</td><td></td><td>4,127</td></tr><tr><td>Balance at DecemberΒ 31, 2023</td><td></td><td>82,840</td><td>​ ​</td><td>$</td><td>754,362</td><td>​ ​</td><td>$</td><td>2,271,211</td><td></td><td>( 42,615 )</td><td>​ ​</td><td>$</td><td>( 912,396 )</td><td>​ ​</td><td>$</td><td>325</td><td>​ ​</td><td>$</td><td>2,113,502</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td></tr><tr><td>Vested employee stock awards</td><td></td><td>270</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 117 )</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>48</td><td>​ ​</td><td>​ ​</td><td>2,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,864</td></tr><tr><td>Issuance of common stock upon warrant exercise, net</td><td>​ ​</td><td>481</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td></tr><tr><td>Treasury stock purchases</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 578 )</td><td>​ ​</td><td></td><td>( 43,324 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>( 43,324 )</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 51</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td></tr><tr><td>Balance at DecemberΒ 31, 2024</td><td></td><td>83,639</td><td>​ ​</td><td>$</td><td>777,090</td><td>​ ​</td><td>$</td><td>2,594,173</td><td></td><td>( 43,310 )</td><td>​ ​</td><td>$</td><td>( 962,650 )</td><td>​ ​</td><td>$</td><td>168</td><td>​ ​</td><td>$</td><td>2,408,781</td></tr></table>
table
72953
monetaryItemType
table: <entity> 72953 </entity> <entity type> monetaryItemType </entity type> <context> Net income | β€” | ​ ​ | β€” | ​ ​ | 72,953 | β€” | ​ ​ | β€” | ​ ​ | β€” | ​ ​ | 72,953 </context>
us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Accumulated</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Other</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>CommonΒ Stock</td><td>​ ​</td><td>Retained</td><td>​ ​</td><td>TreasuryΒ Stock</td><td>​ ​</td><td>Comprehensive</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>Earnings</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>IncomeΒ (Loss)</td><td>​ ​</td><td>Total</td></tr><tr><td>Balance at DecemberΒ 31, 2021</td><td></td><td>82,336</td><td>​ ​</td><td>$</td><td>722,310</td><td>​ ​</td><td>$</td><td>2,163,916</td><td></td><td>( 31,956 )</td><td>​ ​</td><td>$</td><td>( 618,712 )</td><td>​ ​</td><td>$</td><td>β€”</td><td>​ ​</td><td>$</td><td>2,267,514</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>151</td><td>​ ​</td><td>​ ​</td><td>142</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>142</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 38 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>106</td><td>​ ​</td><td>​ ​</td><td>2,815</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,815</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 1,224</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 3,802 )</td><td>​ ​</td><td></td><td>( 3,802 )</td></tr><tr><td>Balance at DecemberΒ 31, 2022</td><td></td><td>82,593</td><td>​ ​</td><td>$</td><td>734,426</td><td>​ ​</td><td>$</td><td>2,236,869</td><td></td><td>( 31,994 )</td><td>​ ​</td><td>$</td><td>( 619,862 )</td><td>​ ​</td><td>$</td><td>( 3,802 )</td><td>​ ​</td><td>$</td><td>2,347,631</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>130</td><td>​ ​</td><td>​ ​</td><td>57</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>57</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 32 )</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>117</td><td>​ ​</td><td>​ ​</td><td>2,754</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,754</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td></tr><tr><td>Treasury stock purchases and related excise tax</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 10,589 )</td><td>​ ​</td><td></td><td>( 291,949 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 291,949 )</td></tr><tr><td>Net unrealized appreciation on marketable securities, net of tax of $ 1,329</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>4,127</td><td>​ ​</td><td></td><td>4,127</td></tr><tr><td>Balance at DecemberΒ 31, 2023</td><td></td><td>82,840</td><td>​ ​</td><td>$</td><td>754,362</td><td>​ ​</td><td>$</td><td>2,271,211</td><td></td><td>( 42,615 )</td><td>​ ​</td><td>$</td><td>( 912,396 )</td><td>​ ​</td><td>$</td><td>325</td><td>​ ​</td><td>$</td><td>2,113,502</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td></tr><tr><td>Vested employee stock awards</td><td></td><td>270</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 117 )</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>48</td><td>​ ​</td><td>​ ​</td><td>2,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,864</td></tr><tr><td>Issuance of common stock upon warrant exercise, net</td><td>​ ​</td><td>481</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td></tr><tr><td>Treasury stock purchases</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 578 )</td><td>​ ​</td><td></td><td>( 43,324 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>( 43,324 )</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 51</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td></tr><tr><td>Balance at DecemberΒ 31, 2024</td><td></td><td>83,639</td><td>​ ​</td><td>$</td><td>777,090</td><td>​ ​</td><td>$</td><td>2,594,173</td><td></td><td>( 43,310 )</td><td>​ ​</td><td>$</td><td>( 962,650 )</td><td>​ ​</td><td>$</td><td>168</td><td>​ ​</td><td>$</td><td>2,408,781</td></tr></table>
table
151
sharesItemType
table: <entity> 151 </entity> <entity type> sharesItemType </entity type> <context> Exercise of common stock options and vested employee stock awards | 151 | ​ ​ | ​ ​ | 142 | ​ ​ | β€” | β€” | ​ ​ | β€” | ​ ​ | β€” | ​ ​ | 142 </context>
us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Accumulated</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Other</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>CommonΒ Stock</td><td>​ ​</td><td>Retained</td><td>​ ​</td><td>TreasuryΒ Stock</td><td>​ ​</td><td>Comprehensive</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>Earnings</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>IncomeΒ (Loss)</td><td>​ ​</td><td>Total</td></tr><tr><td>Balance at DecemberΒ 31, 2021</td><td></td><td>82,336</td><td>​ ​</td><td>$</td><td>722,310</td><td>​ ​</td><td>$</td><td>2,163,916</td><td></td><td>( 31,956 )</td><td>​ ​</td><td>$</td><td>( 618,712 )</td><td>​ ​</td><td>$</td><td>β€”</td><td>​ ​</td><td>$</td><td>2,267,514</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>151</td><td>​ ​</td><td>​ ​</td><td>142</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>142</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 38 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>106</td><td>​ ​</td><td>​ ​</td><td>2,815</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,815</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 1,224</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 3,802 )</td><td>​ ​</td><td></td><td>( 3,802 )</td></tr><tr><td>Balance at DecemberΒ 31, 2022</td><td></td><td>82,593</td><td>​ ​</td><td>$</td><td>734,426</td><td>​ ​</td><td>$</td><td>2,236,869</td><td></td><td>( 31,994 )</td><td>​ ​</td><td>$</td><td>( 619,862 )</td><td>​ ​</td><td>$</td><td>( 3,802 )</td><td>​ ​</td><td>$</td><td>2,347,631</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>130</td><td>​ ​</td><td>​ ​</td><td>57</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>57</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 32 )</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>117</td><td>​ ​</td><td>​ ​</td><td>2,754</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,754</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td></tr><tr><td>Treasury stock purchases and related excise tax</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 10,589 )</td><td>​ ​</td><td></td><td>( 291,949 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 291,949 )</td></tr><tr><td>Net unrealized appreciation on marketable securities, net of tax of $ 1,329</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>4,127</td><td>​ ​</td><td></td><td>4,127</td></tr><tr><td>Balance at DecemberΒ 31, 2023</td><td></td><td>82,840</td><td>​ ​</td><td>$</td><td>754,362</td><td>​ ​</td><td>$</td><td>2,271,211</td><td></td><td>( 42,615 )</td><td>​ ​</td><td>$</td><td>( 912,396 )</td><td>​ ​</td><td>$</td><td>325</td><td>​ ​</td><td>$</td><td>2,113,502</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td></tr><tr><td>Vested employee stock awards</td><td></td><td>270</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 117 )</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>48</td><td>​ ​</td><td>​ ​</td><td>2,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,864</td></tr><tr><td>Issuance of common stock upon warrant exercise, net</td><td>​ ​</td><td>481</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td></tr><tr><td>Treasury stock purchases</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 578 )</td><td>​ ​</td><td></td><td>( 43,324 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>( 43,324 )</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 51</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td></tr><tr><td>Balance at DecemberΒ 31, 2024</td><td></td><td>83,639</td><td>​ ​</td><td>$</td><td>777,090</td><td>​ ​</td><td>$</td><td>2,594,173</td><td></td><td>( 43,310 )</td><td>​ ​</td><td>$</td><td>( 962,650 )</td><td>​ ​</td><td>$</td><td>168</td><td>​ ​</td><td>$</td><td>2,408,781</td></tr></table>
table
142
monetaryItemType
table: <entity> 142 </entity> <entity type> monetaryItemType </entity type> <context> Exercise of common stock options and vested employee stock awards | 151 | ​ ​ | ​ ​ | 142 | ​ ​ | β€” | β€” | ​ ​ | β€” | ​ ​ | β€” | ​ ​ | 142 </context>
us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Accumulated</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Other</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>CommonΒ Stock</td><td>​ ​</td><td>Retained</td><td>​ ​</td><td>TreasuryΒ Stock</td><td>​ ​</td><td>Comprehensive</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>Earnings</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>IncomeΒ (Loss)</td><td>​ ​</td><td>Total</td></tr><tr><td>Balance at DecemberΒ 31, 2021</td><td></td><td>82,336</td><td>​ ​</td><td>$</td><td>722,310</td><td>​ ​</td><td>$</td><td>2,163,916</td><td></td><td>( 31,956 )</td><td>​ ​</td><td>$</td><td>( 618,712 )</td><td>​ ​</td><td>$</td><td>β€”</td><td>​ ​</td><td>$</td><td>2,267,514</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>151</td><td>​ ​</td><td>​ ​</td><td>142</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>142</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 38 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>106</td><td>​ ​</td><td>​ ​</td><td>2,815</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,815</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 1,224</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 3,802 )</td><td>​ ​</td><td></td><td>( 3,802 )</td></tr><tr><td>Balance at DecemberΒ 31, 2022</td><td></td><td>82,593</td><td>​ ​</td><td>$</td><td>734,426</td><td>​ ​</td><td>$</td><td>2,236,869</td><td></td><td>( 31,994 )</td><td>​ ​</td><td>$</td><td>( 619,862 )</td><td>​ ​</td><td>$</td><td>( 3,802 )</td><td>​ ​</td><td>$</td><td>2,347,631</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>130</td><td>​ ​</td><td>​ ​</td><td>57</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>57</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 32 )</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>117</td><td>​ ​</td><td>​ ​</td><td>2,754</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,754</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td></tr><tr><td>Treasury stock purchases and related excise tax</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 10,589 )</td><td>​ ​</td><td></td><td>( 291,949 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 291,949 )</td></tr><tr><td>Net unrealized appreciation on marketable securities, net of tax of $ 1,329</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>4,127</td><td>​ ​</td><td></td><td>4,127</td></tr><tr><td>Balance at DecemberΒ 31, 2023</td><td></td><td>82,840</td><td>​ ​</td><td>$</td><td>754,362</td><td>​ ​</td><td>$</td><td>2,271,211</td><td></td><td>( 42,615 )</td><td>​ ​</td><td>$</td><td>( 912,396 )</td><td>​ ​</td><td>$</td><td>325</td><td>​ ​</td><td>$</td><td>2,113,502</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td></tr><tr><td>Vested employee stock awards</td><td></td><td>270</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 117 )</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>48</td><td>​ ​</td><td>​ ​</td><td>2,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,864</td></tr><tr><td>Issuance of common stock upon warrant exercise, net</td><td>​ ​</td><td>481</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td></tr><tr><td>Treasury stock purchases</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 578 )</td><td>​ ​</td><td></td><td>( 43,324 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>( 43,324 )</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 51</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td></tr><tr><td>Balance at DecemberΒ 31, 2024</td><td></td><td>83,639</td><td>​ ​</td><td>$</td><td>777,090</td><td>​ ​</td><td>$</td><td>2,594,173</td><td></td><td>( 43,310 )</td><td>​ ​</td><td>$</td><td>( 962,650 )</td><td>​ ​</td><td>$</td><td>168</td><td>​ ​</td><td>$</td><td>2,408,781</td></tr></table>
table
38
sharesItemType
table: <entity> 38 </entity> <entity type> sharesItemType </entity type> <context> None </context>
us-gaap:SharesPaidForTaxWithholdingForShareBasedCompensation
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Accumulated</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Other</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>CommonΒ Stock</td><td>​ ​</td><td>Retained</td><td>​ ​</td><td>TreasuryΒ Stock</td><td>​ ​</td><td>Comprehensive</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>Earnings</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>IncomeΒ (Loss)</td><td>​ ​</td><td>Total</td></tr><tr><td>Balance at DecemberΒ 31, 2021</td><td></td><td>82,336</td><td>​ ​</td><td>$</td><td>722,310</td><td>​ ​</td><td>$</td><td>2,163,916</td><td></td><td>( 31,956 )</td><td>​ ​</td><td>$</td><td>( 618,712 )</td><td>​ ​</td><td>$</td><td>β€”</td><td>​ ​</td><td>$</td><td>2,267,514</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>151</td><td>​ ​</td><td>​ ​</td><td>142</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>142</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 38 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>106</td><td>​ ​</td><td>​ ​</td><td>2,815</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,815</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 1,224</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 3,802 )</td><td>​ ​</td><td></td><td>( 3,802 )</td></tr><tr><td>Balance at DecemberΒ 31, 2022</td><td></td><td>82,593</td><td>​ ​</td><td>$</td><td>734,426</td><td>​ ​</td><td>$</td><td>2,236,869</td><td></td><td>( 31,994 )</td><td>​ ​</td><td>$</td><td>( 619,862 )</td><td>​ ​</td><td>$</td><td>( 3,802 )</td><td>​ ​</td><td>$</td><td>2,347,631</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>130</td><td>​ ​</td><td>​ ​</td><td>57</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>57</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 32 )</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>117</td><td>​ ​</td><td>​ ​</td><td>2,754</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,754</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td></tr><tr><td>Treasury stock purchases and related excise tax</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 10,589 )</td><td>​ ​</td><td></td><td>( 291,949 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 291,949 )</td></tr><tr><td>Net unrealized appreciation on marketable securities, net of tax of $ 1,329</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>4,127</td><td>​ ​</td><td></td><td>4,127</td></tr><tr><td>Balance at DecemberΒ 31, 2023</td><td></td><td>82,840</td><td>​ ​</td><td>$</td><td>754,362</td><td>​ ​</td><td>$</td><td>2,271,211</td><td></td><td>( 42,615 )</td><td>​ ​</td><td>$</td><td>( 912,396 )</td><td>​ ​</td><td>$</td><td>325</td><td>​ ​</td><td>$</td><td>2,113,502</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td></tr><tr><td>Vested employee stock awards</td><td></td><td>270</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 117 )</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>48</td><td>​ ​</td><td>​ ​</td><td>2,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,864</td></tr><tr><td>Issuance of common stock upon warrant exercise, net</td><td>​ ​</td><td>481</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td></tr><tr><td>Treasury stock purchases</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 578 )</td><td>​ ​</td><td></td><td>( 43,324 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>( 43,324 )</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 51</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td></tr><tr><td>Balance at DecemberΒ 31, 2024</td><td></td><td>83,639</td><td>​ ​</td><td>$</td><td>777,090</td><td>​ ​</td><td>$</td><td>2,594,173</td><td></td><td>( 43,310 )</td><td>​ ​</td><td>$</td><td>( 962,650 )</td><td>​ ​</td><td>$</td><td>168</td><td>​ ​</td><td>$</td><td>2,408,781</td></tr></table>
table
106
sharesItemType
table: <entity> 106 </entity> <entity type> sharesItemType </entity type> <context> Sale of common stock under employee stock purchase plan | 106 | ​ ​ | ​ ​ | 2,815 | ​ ​ | β€” | β€” | ​ ​ | β€” | ​ ​ | β€” | ​ ​ | 2,815 </context>
us-gaap:StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Accumulated</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Other</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>CommonΒ Stock</td><td>​ ​</td><td>Retained</td><td>​ ​</td><td>TreasuryΒ Stock</td><td>​ ​</td><td>Comprehensive</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>Earnings</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>IncomeΒ (Loss)</td><td>​ ​</td><td>Total</td></tr><tr><td>Balance at DecemberΒ 31, 2021</td><td></td><td>82,336</td><td>​ ​</td><td>$</td><td>722,310</td><td>​ ​</td><td>$</td><td>2,163,916</td><td></td><td>( 31,956 )</td><td>​ ​</td><td>$</td><td>( 618,712 )</td><td>​ ​</td><td>$</td><td>β€”</td><td>​ ​</td><td>$</td><td>2,267,514</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>151</td><td>​ ​</td><td>​ ​</td><td>142</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>142</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 38 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>106</td><td>​ ​</td><td>​ ​</td><td>2,815</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,815</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 1,224</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 3,802 )</td><td>​ ​</td><td></td><td>( 3,802 )</td></tr><tr><td>Balance at DecemberΒ 31, 2022</td><td></td><td>82,593</td><td>​ ​</td><td>$</td><td>734,426</td><td>​ ​</td><td>$</td><td>2,236,869</td><td></td><td>( 31,994 )</td><td>​ ​</td><td>$</td><td>( 619,862 )</td><td>​ ​</td><td>$</td><td>( 3,802 )</td><td>​ ​</td><td>$</td><td>2,347,631</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>130</td><td>​ ​</td><td>​ ​</td><td>57</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>57</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 32 )</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>117</td><td>​ ​</td><td>​ ​</td><td>2,754</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,754</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td></tr><tr><td>Treasury stock purchases and related excise tax</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 10,589 )</td><td>​ ​</td><td></td><td>( 291,949 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 291,949 )</td></tr><tr><td>Net unrealized appreciation on marketable securities, net of tax of $ 1,329</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>4,127</td><td>​ ​</td><td></td><td>4,127</td></tr><tr><td>Balance at DecemberΒ 31, 2023</td><td></td><td>82,840</td><td>​ ​</td><td>$</td><td>754,362</td><td>​ ​</td><td>$</td><td>2,271,211</td><td></td><td>( 42,615 )</td><td>​ ​</td><td>$</td><td>( 912,396 )</td><td>​ ​</td><td>$</td><td>325</td><td>​ ​</td><td>$</td><td>2,113,502</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td></tr><tr><td>Vested employee stock awards</td><td></td><td>270</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 117 )</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>48</td><td>​ ​</td><td>​ ​</td><td>2,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,864</td></tr><tr><td>Issuance of common stock upon warrant exercise, net</td><td>​ ​</td><td>481</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td></tr><tr><td>Treasury stock purchases</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 578 )</td><td>​ ​</td><td></td><td>( 43,324 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>( 43,324 )</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 51</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td></tr><tr><td>Balance at DecemberΒ 31, 2024</td><td></td><td>83,639</td><td>​ ​</td><td>$</td><td>777,090</td><td>​ ​</td><td>$</td><td>2,594,173</td><td></td><td>( 43,310 )</td><td>​ ​</td><td>$</td><td>( 962,650 )</td><td>​ ​</td><td>$</td><td>168</td><td>​ ​</td><td>$</td><td>2,408,781</td></tr></table>
table
2815
monetaryItemType
table: <entity> 2815 </entity> <entity type> monetaryItemType </entity type> <context> Sale of common stock under employee stock purchase plan | 106 | ​ ​ | ​ ​ | 2,815 | ​ ​ | β€” | β€” | ​ ​ | β€” | ​ ​ | β€” | ​ ​ | 2,815 </context>
us-gaap:StockIssuedDuringPeriodValueEmployeeStockPurchasePlan
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Accumulated</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Other</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>CommonΒ Stock</td><td>​ ​</td><td>Retained</td><td>​ ​</td><td>TreasuryΒ Stock</td><td>​ ​</td><td>Comprehensive</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>Earnings</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>IncomeΒ (Loss)</td><td>​ ​</td><td>Total</td></tr><tr><td>Balance at DecemberΒ 31, 2021</td><td></td><td>82,336</td><td>​ ​</td><td>$</td><td>722,310</td><td>​ ​</td><td>$</td><td>2,163,916</td><td></td><td>( 31,956 )</td><td>​ ​</td><td>$</td><td>( 618,712 )</td><td>​ ​</td><td>$</td><td>β€”</td><td>​ ​</td><td>$</td><td>2,267,514</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>151</td><td>​ ​</td><td>​ ​</td><td>142</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>142</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 38 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>106</td><td>​ ​</td><td>​ ​</td><td>2,815</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,815</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 1,224</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 3,802 )</td><td>​ ​</td><td></td><td>( 3,802 )</td></tr><tr><td>Balance at DecemberΒ 31, 2022</td><td></td><td>82,593</td><td>​ ​</td><td>$</td><td>734,426</td><td>​ ​</td><td>$</td><td>2,236,869</td><td></td><td>( 31,994 )</td><td>​ ​</td><td>$</td><td>( 619,862 )</td><td>​ ​</td><td>$</td><td>( 3,802 )</td><td>​ ​</td><td>$</td><td>2,347,631</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>130</td><td>​ ​</td><td>​ ​</td><td>57</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>57</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 32 )</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>117</td><td>​ ​</td><td>​ ​</td><td>2,754</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,754</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td></tr><tr><td>Treasury stock purchases and related excise tax</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 10,589 )</td><td>​ ​</td><td></td><td>( 291,949 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 291,949 )</td></tr><tr><td>Net unrealized appreciation on marketable securities, net of tax of $ 1,329</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>4,127</td><td>​ ​</td><td></td><td>4,127</td></tr><tr><td>Balance at DecemberΒ 31, 2023</td><td></td><td>82,840</td><td>​ ​</td><td>$</td><td>754,362</td><td>​ ​</td><td>$</td><td>2,271,211</td><td></td><td>( 42,615 )</td><td>​ ​</td><td>$</td><td>( 912,396 )</td><td>​ ​</td><td>$</td><td>325</td><td>​ ​</td><td>$</td><td>2,113,502</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td></tr><tr><td>Vested employee stock awards</td><td></td><td>270</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 117 )</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>48</td><td>​ ​</td><td>​ ​</td><td>2,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,864</td></tr><tr><td>Issuance of common stock upon warrant exercise, net</td><td>​ ​</td><td>481</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td></tr><tr><td>Treasury stock purchases</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 578 )</td><td>​ ​</td><td></td><td>( 43,324 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>( 43,324 )</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 51</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td></tr><tr><td>Balance at DecemberΒ 31, 2024</td><td></td><td>83,639</td><td>​ ​</td><td>$</td><td>777,090</td><td>​ ​</td><td>$</td><td>2,594,173</td><td></td><td>( 43,310 )</td><td>​ ​</td><td>$</td><td>( 962,650 )</td><td>​ ​</td><td>$</td><td>168</td><td>​ ​</td><td>$</td><td>2,408,781</td></tr></table>
table
9159
monetaryItemType
table: <entity> 9159 </entity> <entity type> monetaryItemType </entity type> <context> Stock based compensation expense | β€” | ​ ​ | 9,159 | ​ ​ | β€” | β€” | ​ ​ | β€” | ​ ​ | β€” | ​ ​ | 9,159 </context>
us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Accumulated</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Other</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>CommonΒ Stock</td><td>​ ​</td><td>Retained</td><td>​ ​</td><td>TreasuryΒ Stock</td><td>​ ​</td><td>Comprehensive</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>Earnings</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>IncomeΒ (Loss)</td><td>​ ​</td><td>Total</td></tr><tr><td>Balance at DecemberΒ 31, 2021</td><td></td><td>82,336</td><td>​ ​</td><td>$</td><td>722,310</td><td>​ ​</td><td>$</td><td>2,163,916</td><td></td><td>( 31,956 )</td><td>​ ​</td><td>$</td><td>( 618,712 )</td><td>​ ​</td><td>$</td><td>β€”</td><td>​ ​</td><td>$</td><td>2,267,514</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>151</td><td>​ ​</td><td>​ ​</td><td>142</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>142</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 38 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>106</td><td>​ ​</td><td>​ ​</td><td>2,815</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,815</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 1,224</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 3,802 )</td><td>​ ​</td><td></td><td>( 3,802 )</td></tr><tr><td>Balance at DecemberΒ 31, 2022</td><td></td><td>82,593</td><td>​ ​</td><td>$</td><td>734,426</td><td>​ ​</td><td>$</td><td>2,236,869</td><td></td><td>( 31,994 )</td><td>​ ​</td><td>$</td><td>( 619,862 )</td><td>​ ​</td><td>$</td><td>( 3,802 )</td><td>​ ​</td><td>$</td><td>2,347,631</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>130</td><td>​ ​</td><td>​ ​</td><td>57</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>57</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 32 )</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>117</td><td>​ ​</td><td>​ ​</td><td>2,754</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,754</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td></tr><tr><td>Treasury stock purchases and related excise tax</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 10,589 )</td><td>​ ​</td><td></td><td>( 291,949 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 291,949 )</td></tr><tr><td>Net unrealized appreciation on marketable securities, net of tax of $ 1,329</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>4,127</td><td>​ ​</td><td></td><td>4,127</td></tr><tr><td>Balance at DecemberΒ 31, 2023</td><td></td><td>82,840</td><td>​ ​</td><td>$</td><td>754,362</td><td>​ ​</td><td>$</td><td>2,271,211</td><td></td><td>( 42,615 )</td><td>​ ​</td><td>$</td><td>( 912,396 )</td><td>​ ​</td><td>$</td><td>325</td><td>​ ​</td><td>$</td><td>2,113,502</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td></tr><tr><td>Vested employee stock awards</td><td></td><td>270</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 117 )</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>48</td><td>​ ​</td><td>​ ​</td><td>2,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,864</td></tr><tr><td>Issuance of common stock upon warrant exercise, net</td><td>​ ​</td><td>481</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td></tr><tr><td>Treasury stock purchases</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 578 )</td><td>​ ​</td><td></td><td>( 43,324 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>( 43,324 )</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 51</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td></tr><tr><td>Balance at DecemberΒ 31, 2024</td><td></td><td>83,639</td><td>​ ​</td><td>$</td><td>777,090</td><td>​ ​</td><td>$</td><td>2,594,173</td><td></td><td>( 43,310 )</td><td>​ ​</td><td>$</td><td>( 962,650 )</td><td>​ ​</td><td>$</td><td>168</td><td>​ ​</td><td>$</td><td>2,408,781</td></tr></table>
table
1224
monetaryItemType
table: <entity> 1224 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Accumulated</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Other</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>CommonΒ Stock</td><td>​ ​</td><td>Retained</td><td>​ ​</td><td>TreasuryΒ Stock</td><td>​ ​</td><td>Comprehensive</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>Earnings</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>IncomeΒ (Loss)</td><td>​ ​</td><td>Total</td></tr><tr><td>Balance at DecemberΒ 31, 2021</td><td></td><td>82,336</td><td>​ ​</td><td>$</td><td>722,310</td><td>​ ​</td><td>$</td><td>2,163,916</td><td></td><td>( 31,956 )</td><td>​ ​</td><td>$</td><td>( 618,712 )</td><td>​ ​</td><td>$</td><td>β€”</td><td>​ ​</td><td>$</td><td>2,267,514</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>151</td><td>​ ​</td><td>​ ​</td><td>142</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>142</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 38 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>106</td><td>​ ​</td><td>​ ​</td><td>2,815</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,815</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 1,224</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 3,802 )</td><td>​ ​</td><td></td><td>( 3,802 )</td></tr><tr><td>Balance at DecemberΒ 31, 2022</td><td></td><td>82,593</td><td>​ ​</td><td>$</td><td>734,426</td><td>​ ​</td><td>$</td><td>2,236,869</td><td></td><td>( 31,994 )</td><td>​ ​</td><td>$</td><td>( 619,862 )</td><td>​ ​</td><td>$</td><td>( 3,802 )</td><td>​ ​</td><td>$</td><td>2,347,631</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>130</td><td>​ ​</td><td>​ ​</td><td>57</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>57</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 32 )</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>117</td><td>​ ​</td><td>​ ​</td><td>2,754</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,754</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td></tr><tr><td>Treasury stock purchases and related excise tax</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 10,589 )</td><td>​ ​</td><td></td><td>( 291,949 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 291,949 )</td></tr><tr><td>Net unrealized appreciation on marketable securities, net of tax of $ 1,329</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>4,127</td><td>​ ​</td><td></td><td>4,127</td></tr><tr><td>Balance at DecemberΒ 31, 2023</td><td></td><td>82,840</td><td>​ ​</td><td>$</td><td>754,362</td><td>​ ​</td><td>$</td><td>2,271,211</td><td></td><td>( 42,615 )</td><td>​ ​</td><td>$</td><td>( 912,396 )</td><td>​ ​</td><td>$</td><td>325</td><td>​ ​</td><td>$</td><td>2,113,502</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td></tr><tr><td>Vested employee stock awards</td><td></td><td>270</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 117 )</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>48</td><td>​ ​</td><td>​ ​</td><td>2,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,864</td></tr><tr><td>Issuance of common stock upon warrant exercise, net</td><td>​ ​</td><td>481</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td></tr><tr><td>Treasury stock purchases</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 578 )</td><td>​ ​</td><td></td><td>( 43,324 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>( 43,324 )</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 51</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td></tr><tr><td>Balance at DecemberΒ 31, 2024</td><td></td><td>83,639</td><td>​ ​</td><td>$</td><td>777,090</td><td>​ ​</td><td>$</td><td>2,594,173</td><td></td><td>( 43,310 )</td><td>​ ​</td><td>$</td><td>( 962,650 )</td><td>​ ​</td><td>$</td><td>168</td><td>​ ​</td><td>$</td><td>2,408,781</td></tr></table>
table
3802
monetaryItemType
table: <entity> 3802 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Accumulated</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Other</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>CommonΒ Stock</td><td>​ ​</td><td>Retained</td><td>​ ​</td><td>TreasuryΒ Stock</td><td>​ ​</td><td>Comprehensive</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>Earnings</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>IncomeΒ (Loss)</td><td>​ ​</td><td>Total</td></tr><tr><td>Balance at DecemberΒ 31, 2021</td><td></td><td>82,336</td><td>​ ​</td><td>$</td><td>722,310</td><td>​ ​</td><td>$</td><td>2,163,916</td><td></td><td>( 31,956 )</td><td>​ ​</td><td>$</td><td>( 618,712 )</td><td>​ ​</td><td>$</td><td>β€”</td><td>​ ​</td><td>$</td><td>2,267,514</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>151</td><td>​ ​</td><td>​ ​</td><td>142</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>142</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 38 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>106</td><td>​ ​</td><td>​ ​</td><td>2,815</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,815</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 1,224</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 3,802 )</td><td>​ ​</td><td></td><td>( 3,802 )</td></tr><tr><td>Balance at DecemberΒ 31, 2022</td><td></td><td>82,593</td><td>​ ​</td><td>$</td><td>734,426</td><td>​ ​</td><td>$</td><td>2,236,869</td><td></td><td>( 31,994 )</td><td>​ ​</td><td>$</td><td>( 619,862 )</td><td>​ ​</td><td>$</td><td>( 3,802 )</td><td>​ ​</td><td>$</td><td>2,347,631</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>130</td><td>​ ​</td><td>​ ​</td><td>57</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>57</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 32 )</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>117</td><td>​ ​</td><td>​ ​</td><td>2,754</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,754</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td></tr><tr><td>Treasury stock purchases and related excise tax</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 10,589 )</td><td>​ ​</td><td></td><td>( 291,949 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 291,949 )</td></tr><tr><td>Net unrealized appreciation on marketable securities, net of tax of $ 1,329</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>4,127</td><td>​ ​</td><td></td><td>4,127</td></tr><tr><td>Balance at DecemberΒ 31, 2023</td><td></td><td>82,840</td><td>​ ​</td><td>$</td><td>754,362</td><td>​ ​</td><td>$</td><td>2,271,211</td><td></td><td>( 42,615 )</td><td>​ ​</td><td>$</td><td>( 912,396 )</td><td>​ ​</td><td>$</td><td>325</td><td>​ ​</td><td>$</td><td>2,113,502</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td></tr><tr><td>Vested employee stock awards</td><td></td><td>270</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 117 )</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>48</td><td>​ ​</td><td>​ ​</td><td>2,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,864</td></tr><tr><td>Issuance of common stock upon warrant exercise, net</td><td>​ ​</td><td>481</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td></tr><tr><td>Treasury stock purchases</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 578 )</td><td>​ ​</td><td></td><td>( 43,324 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>( 43,324 )</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 51</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td></tr><tr><td>Balance at DecemberΒ 31, 2024</td><td></td><td>83,639</td><td>​ ​</td><td>$</td><td>777,090</td><td>​ ​</td><td>$</td><td>2,594,173</td><td></td><td>( 43,310 )</td><td>​ ​</td><td>$</td><td>( 962,650 )</td><td>​ ​</td><td>$</td><td>168</td><td>​ ​</td><td>$</td><td>2,408,781</td></tr></table>
table
82593
sharesItemType
table: <entity> 82593 </entity> <entity type> sharesItemType </entity type> <context> Balance at DecemberΒ 31, 2022 | 82,593 | ​ ​ | $ | 734,426 | ​ ​ | $ | 2,236,869 | ( 31,994 ) | ​ ​ | $ | ( 619,862 ) | ​ ​ | $ | ( 3,802 ) | ​ ​ | $ | 2,347,631 </context>
us-gaap:CommonStockSharesOutstanding
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Accumulated</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Other</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>CommonΒ Stock</td><td>​ ​</td><td>Retained</td><td>​ ​</td><td>TreasuryΒ Stock</td><td>​ ​</td><td>Comprehensive</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>Earnings</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>IncomeΒ (Loss)</td><td>​ ​</td><td>Total</td></tr><tr><td>Balance at DecemberΒ 31, 2021</td><td></td><td>82,336</td><td>​ ​</td><td>$</td><td>722,310</td><td>​ ​</td><td>$</td><td>2,163,916</td><td></td><td>( 31,956 )</td><td>​ ​</td><td>$</td><td>( 618,712 )</td><td>​ ​</td><td>$</td><td>β€”</td><td>​ ​</td><td>$</td><td>2,267,514</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>151</td><td>​ ​</td><td>​ ​</td><td>142</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>142</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 38 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>106</td><td>​ ​</td><td>​ ​</td><td>2,815</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,815</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 1,224</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 3,802 )</td><td>​ ​</td><td></td><td>( 3,802 )</td></tr><tr><td>Balance at DecemberΒ 31, 2022</td><td></td><td>82,593</td><td>​ ​</td><td>$</td><td>734,426</td><td>​ ​</td><td>$</td><td>2,236,869</td><td></td><td>( 31,994 )</td><td>​ ​</td><td>$</td><td>( 619,862 )</td><td>​ ​</td><td>$</td><td>( 3,802 )</td><td>​ ​</td><td>$</td><td>2,347,631</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>130</td><td>​ ​</td><td>​ ​</td><td>57</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>57</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 32 )</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>117</td><td>​ ​</td><td>​ ​</td><td>2,754</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,754</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td></tr><tr><td>Treasury stock purchases and related excise tax</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 10,589 )</td><td>​ ​</td><td></td><td>( 291,949 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 291,949 )</td></tr><tr><td>Net unrealized appreciation on marketable securities, net of tax of $ 1,329</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>4,127</td><td>​ ​</td><td></td><td>4,127</td></tr><tr><td>Balance at DecemberΒ 31, 2023</td><td></td><td>82,840</td><td>​ ​</td><td>$</td><td>754,362</td><td>​ ​</td><td>$</td><td>2,271,211</td><td></td><td>( 42,615 )</td><td>​ ​</td><td>$</td><td>( 912,396 )</td><td>​ ​</td><td>$</td><td>325</td><td>​ ​</td><td>$</td><td>2,113,502</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td></tr><tr><td>Vested employee stock awards</td><td></td><td>270</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 117 )</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>48</td><td>​ ​</td><td>​ ​</td><td>2,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,864</td></tr><tr><td>Issuance of common stock upon warrant exercise, net</td><td>​ ​</td><td>481</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td></tr><tr><td>Treasury stock purchases</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 578 )</td><td>​ ​</td><td></td><td>( 43,324 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>( 43,324 )</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 51</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td></tr><tr><td>Balance at DecemberΒ 31, 2024</td><td></td><td>83,639</td><td>​ ​</td><td>$</td><td>777,090</td><td>​ ​</td><td>$</td><td>2,594,173</td><td></td><td>( 43,310 )</td><td>​ ​</td><td>$</td><td>( 962,650 )</td><td>​ ​</td><td>$</td><td>168</td><td>​ ​</td><td>$</td><td>2,408,781</td></tr></table>
table
734426
monetaryItemType
table: <entity> 734426 </entity> <entity type> monetaryItemType </entity type> <context> Balance at DecemberΒ 31, 2022 | 82,593 | ​ ​ | $ | 734,426 | ​ ​ | $ | 2,236,869 | ( 31,994 ) | ​ ​ | $ | ( 619,862 ) | ​ ​ | $ | ( 3,802 ) | ​ ​ | $ | 2,347,631 </context>
us-gaap:StockholdersEquity
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Accumulated</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Other</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>CommonΒ Stock</td><td>​ ​</td><td>Retained</td><td>​ ​</td><td>TreasuryΒ Stock</td><td>​ ​</td><td>Comprehensive</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>Earnings</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>IncomeΒ (Loss)</td><td>​ ​</td><td>Total</td></tr><tr><td>Balance at DecemberΒ 31, 2021</td><td></td><td>82,336</td><td>​ ​</td><td>$</td><td>722,310</td><td>​ ​</td><td>$</td><td>2,163,916</td><td></td><td>( 31,956 )</td><td>​ ​</td><td>$</td><td>( 618,712 )</td><td>​ ​</td><td>$</td><td>β€”</td><td>​ ​</td><td>$</td><td>2,267,514</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>151</td><td>​ ​</td><td>​ ​</td><td>142</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>142</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 38 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>106</td><td>​ ​</td><td>​ ​</td><td>2,815</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,815</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 1,224</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 3,802 )</td><td>​ ​</td><td></td><td>( 3,802 )</td></tr><tr><td>Balance at DecemberΒ 31, 2022</td><td></td><td>82,593</td><td>​ ​</td><td>$</td><td>734,426</td><td>​ ​</td><td>$</td><td>2,236,869</td><td></td><td>( 31,994 )</td><td>​ ​</td><td>$</td><td>( 619,862 )</td><td>​ ​</td><td>$</td><td>( 3,802 )</td><td>​ ​</td><td>$</td><td>2,347,631</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>130</td><td>​ ​</td><td>​ ​</td><td>57</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>57</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 32 )</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>117</td><td>​ ​</td><td>​ ​</td><td>2,754</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,754</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td></tr><tr><td>Treasury stock purchases and related excise tax</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 10,589 )</td><td>​ ​</td><td></td><td>( 291,949 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 291,949 )</td></tr><tr><td>Net unrealized appreciation on marketable securities, net of tax of $ 1,329</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>4,127</td><td>​ ​</td><td></td><td>4,127</td></tr><tr><td>Balance at DecemberΒ 31, 2023</td><td></td><td>82,840</td><td>​ ​</td><td>$</td><td>754,362</td><td>​ ​</td><td>$</td><td>2,271,211</td><td></td><td>( 42,615 )</td><td>​ ​</td><td>$</td><td>( 912,396 )</td><td>​ ​</td><td>$</td><td>325</td><td>​ ​</td><td>$</td><td>2,113,502</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td></tr><tr><td>Vested employee stock awards</td><td></td><td>270</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 117 )</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>48</td><td>​ ​</td><td>​ ​</td><td>2,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,864</td></tr><tr><td>Issuance of common stock upon warrant exercise, net</td><td>​ ​</td><td>481</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td></tr><tr><td>Treasury stock purchases</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 578 )</td><td>​ ​</td><td></td><td>( 43,324 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>( 43,324 )</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 51</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td></tr><tr><td>Balance at DecemberΒ 31, 2024</td><td></td><td>83,639</td><td>​ ​</td><td>$</td><td>777,090</td><td>​ ​</td><td>$</td><td>2,594,173</td><td></td><td>( 43,310 )</td><td>​ ​</td><td>$</td><td>( 962,650 )</td><td>​ ​</td><td>$</td><td>168</td><td>​ ​</td><td>$</td><td>2,408,781</td></tr></table>
table
2236869
monetaryItemType
table: <entity> 2236869 </entity> <entity type> monetaryItemType </entity type> <context> Balance at DecemberΒ 31, 2022 | 82,593 | ​ ​ | $ | 734,426 | ​ ​ | $ | 2,236,869 | ( 31,994 ) | ​ ​ | $ | ( 619,862 ) | ​ ​ | $ | ( 3,802 ) | ​ ​ | $ | 2,347,631 </context>
us-gaap:StockholdersEquity
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Accumulated</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Other</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>CommonΒ Stock</td><td>​ ​</td><td>Retained</td><td>​ ​</td><td>TreasuryΒ Stock</td><td>​ ​</td><td>Comprehensive</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>Earnings</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>IncomeΒ (Loss)</td><td>​ ​</td><td>Total</td></tr><tr><td>Balance at DecemberΒ 31, 2021</td><td></td><td>82,336</td><td>​ ​</td><td>$</td><td>722,310</td><td>​ ​</td><td>$</td><td>2,163,916</td><td></td><td>( 31,956 )</td><td>​ ​</td><td>$</td><td>( 618,712 )</td><td>​ ​</td><td>$</td><td>β€”</td><td>​ ​</td><td>$</td><td>2,267,514</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>151</td><td>​ ​</td><td>​ ​</td><td>142</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>142</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 38 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>106</td><td>​ ​</td><td>​ ​</td><td>2,815</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,815</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 1,224</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 3,802 )</td><td>​ ​</td><td></td><td>( 3,802 )</td></tr><tr><td>Balance at DecemberΒ 31, 2022</td><td></td><td>82,593</td><td>​ ​</td><td>$</td><td>734,426</td><td>​ ​</td><td>$</td><td>2,236,869</td><td></td><td>( 31,994 )</td><td>​ ​</td><td>$</td><td>( 619,862 )</td><td>​ ​</td><td>$</td><td>( 3,802 )</td><td>​ ​</td><td>$</td><td>2,347,631</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>130</td><td>​ ​</td><td>​ ​</td><td>57</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>57</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 32 )</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>117</td><td>​ ​</td><td>​ ​</td><td>2,754</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,754</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td></tr><tr><td>Treasury stock purchases and related excise tax</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 10,589 )</td><td>​ ​</td><td></td><td>( 291,949 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 291,949 )</td></tr><tr><td>Net unrealized appreciation on marketable securities, net of tax of $ 1,329</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>4,127</td><td>​ ​</td><td></td><td>4,127</td></tr><tr><td>Balance at DecemberΒ 31, 2023</td><td></td><td>82,840</td><td>​ ​</td><td>$</td><td>754,362</td><td>​ ​</td><td>$</td><td>2,271,211</td><td></td><td>( 42,615 )</td><td>​ ​</td><td>$</td><td>( 912,396 )</td><td>​ ​</td><td>$</td><td>325</td><td>​ ​</td><td>$</td><td>2,113,502</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td></tr><tr><td>Vested employee stock awards</td><td></td><td>270</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 117 )</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>48</td><td>​ ​</td><td>​ ​</td><td>2,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,864</td></tr><tr><td>Issuance of common stock upon warrant exercise, net</td><td>​ ​</td><td>481</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td></tr><tr><td>Treasury stock purchases</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 578 )</td><td>​ ​</td><td></td><td>( 43,324 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>( 43,324 )</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 51</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td></tr><tr><td>Balance at DecemberΒ 31, 2024</td><td></td><td>83,639</td><td>​ ​</td><td>$</td><td>777,090</td><td>​ ​</td><td>$</td><td>2,594,173</td><td></td><td>( 43,310 )</td><td>​ ​</td><td>$</td><td>( 962,650 )</td><td>​ ​</td><td>$</td><td>168</td><td>​ ​</td><td>$</td><td>2,408,781</td></tr></table>
table
31994
sharesItemType
table: <entity> 31994 </entity> <entity type> sharesItemType </entity type> <context> None </context>
us-gaap:TreasuryStockCommonShares
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Accumulated</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Other</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>CommonΒ Stock</td><td>​ ​</td><td>Retained</td><td>​ ​</td><td>TreasuryΒ Stock</td><td>​ ​</td><td>Comprehensive</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>Earnings</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>IncomeΒ (Loss)</td><td>​ ​</td><td>Total</td></tr><tr><td>Balance at DecemberΒ 31, 2021</td><td></td><td>82,336</td><td>​ ​</td><td>$</td><td>722,310</td><td>​ ​</td><td>$</td><td>2,163,916</td><td></td><td>( 31,956 )</td><td>​ ​</td><td>$</td><td>( 618,712 )</td><td>​ ​</td><td>$</td><td>β€”</td><td>​ ​</td><td>$</td><td>2,267,514</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>151</td><td>​ ​</td><td>​ ​</td><td>142</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>142</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 38 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>106</td><td>​ ​</td><td>​ ​</td><td>2,815</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,815</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 1,224</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 3,802 )</td><td>​ ​</td><td></td><td>( 3,802 )</td></tr><tr><td>Balance at DecemberΒ 31, 2022</td><td></td><td>82,593</td><td>​ ​</td><td>$</td><td>734,426</td><td>​ ​</td><td>$</td><td>2,236,869</td><td></td><td>( 31,994 )</td><td>​ ​</td><td>$</td><td>( 619,862 )</td><td>​ ​</td><td>$</td><td>( 3,802 )</td><td>​ ​</td><td>$</td><td>2,347,631</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>130</td><td>​ ​</td><td>​ ​</td><td>57</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>57</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 32 )</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>117</td><td>​ ​</td><td>​ ​</td><td>2,754</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,754</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td></tr><tr><td>Treasury stock purchases and related excise tax</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 10,589 )</td><td>​ ​</td><td></td><td>( 291,949 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 291,949 )</td></tr><tr><td>Net unrealized appreciation on marketable securities, net of tax of $ 1,329</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>4,127</td><td>​ ​</td><td></td><td>4,127</td></tr><tr><td>Balance at DecemberΒ 31, 2023</td><td></td><td>82,840</td><td>​ ​</td><td>$</td><td>754,362</td><td>​ ​</td><td>$</td><td>2,271,211</td><td></td><td>( 42,615 )</td><td>​ ​</td><td>$</td><td>( 912,396 )</td><td>​ ​</td><td>$</td><td>325</td><td>​ ​</td><td>$</td><td>2,113,502</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td></tr><tr><td>Vested employee stock awards</td><td></td><td>270</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 117 )</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>48</td><td>​ ​</td><td>​ ​</td><td>2,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,864</td></tr><tr><td>Issuance of common stock upon warrant exercise, net</td><td>​ ​</td><td>481</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td></tr><tr><td>Treasury stock purchases</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 578 )</td><td>​ ​</td><td></td><td>( 43,324 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>( 43,324 )</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 51</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td></tr><tr><td>Balance at DecemberΒ 31, 2024</td><td></td><td>83,639</td><td>​ ​</td><td>$</td><td>777,090</td><td>​ ​</td><td>$</td><td>2,594,173</td><td></td><td>( 43,310 )</td><td>​ ​</td><td>$</td><td>( 962,650 )</td><td>​ ​</td><td>$</td><td>168</td><td>​ ​</td><td>$</td><td>2,408,781</td></tr></table>
table
619862
monetaryItemType
table: <entity> 619862 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:StockholdersEquity
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Accumulated</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Other</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>CommonΒ Stock</td><td>​ ​</td><td>Retained</td><td>​ ​</td><td>TreasuryΒ Stock</td><td>​ ​</td><td>Comprehensive</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>Earnings</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>IncomeΒ (Loss)</td><td>​ ​</td><td>Total</td></tr><tr><td>Balance at DecemberΒ 31, 2021</td><td></td><td>82,336</td><td>​ ​</td><td>$</td><td>722,310</td><td>​ ​</td><td>$</td><td>2,163,916</td><td></td><td>( 31,956 )</td><td>​ ​</td><td>$</td><td>( 618,712 )</td><td>​ ​</td><td>$</td><td>β€”</td><td>​ ​</td><td>$</td><td>2,267,514</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>151</td><td>​ ​</td><td>​ ​</td><td>142</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>142</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 38 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>106</td><td>​ ​</td><td>​ ​</td><td>2,815</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,815</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 1,224</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 3,802 )</td><td>​ ​</td><td></td><td>( 3,802 )</td></tr><tr><td>Balance at DecemberΒ 31, 2022</td><td></td><td>82,593</td><td>​ ​</td><td>$</td><td>734,426</td><td>​ ​</td><td>$</td><td>2,236,869</td><td></td><td>( 31,994 )</td><td>​ ​</td><td>$</td><td>( 619,862 )</td><td>​ ​</td><td>$</td><td>( 3,802 )</td><td>​ ​</td><td>$</td><td>2,347,631</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>130</td><td>​ ​</td><td>​ ​</td><td>57</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>57</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 32 )</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>117</td><td>​ ​</td><td>​ ​</td><td>2,754</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,754</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td></tr><tr><td>Treasury stock purchases and related excise tax</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 10,589 )</td><td>​ ​</td><td></td><td>( 291,949 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 291,949 )</td></tr><tr><td>Net unrealized appreciation on marketable securities, net of tax of $ 1,329</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>4,127</td><td>​ ​</td><td></td><td>4,127</td></tr><tr><td>Balance at DecemberΒ 31, 2023</td><td></td><td>82,840</td><td>​ ​</td><td>$</td><td>754,362</td><td>​ ​</td><td>$</td><td>2,271,211</td><td></td><td>( 42,615 )</td><td>​ ​</td><td>$</td><td>( 912,396 )</td><td>​ ​</td><td>$</td><td>325</td><td>​ ​</td><td>$</td><td>2,113,502</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td></tr><tr><td>Vested employee stock awards</td><td></td><td>270</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 117 )</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>48</td><td>​ ​</td><td>​ ​</td><td>2,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,864</td></tr><tr><td>Issuance of common stock upon warrant exercise, net</td><td>​ ​</td><td>481</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td></tr><tr><td>Treasury stock purchases</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 578 )</td><td>​ ​</td><td></td><td>( 43,324 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>( 43,324 )</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 51</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td></tr><tr><td>Balance at DecemberΒ 31, 2024</td><td></td><td>83,639</td><td>​ ​</td><td>$</td><td>777,090</td><td>​ ​</td><td>$</td><td>2,594,173</td><td></td><td>( 43,310 )</td><td>​ ​</td><td>$</td><td>( 962,650 )</td><td>​ ​</td><td>$</td><td>168</td><td>​ ​</td><td>$</td><td>2,408,781</td></tr></table>
table
3802
monetaryItemType
table: <entity> 3802 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:StockholdersEquity
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Accumulated</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Other</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>CommonΒ Stock</td><td>​ ​</td><td>Retained</td><td>​ ​</td><td>TreasuryΒ Stock</td><td>​ ​</td><td>Comprehensive</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>Earnings</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>IncomeΒ (Loss)</td><td>​ ​</td><td>Total</td></tr><tr><td>Balance at DecemberΒ 31, 2021</td><td></td><td>82,336</td><td>​ ​</td><td>$</td><td>722,310</td><td>​ ​</td><td>$</td><td>2,163,916</td><td></td><td>( 31,956 )</td><td>​ ​</td><td>$</td><td>( 618,712 )</td><td>​ ​</td><td>$</td><td>β€”</td><td>​ ​</td><td>$</td><td>2,267,514</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>151</td><td>​ ​</td><td>​ ​</td><td>142</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>142</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 38 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>106</td><td>​ ​</td><td>​ ​</td><td>2,815</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,815</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 1,224</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 3,802 )</td><td>​ ​</td><td></td><td>( 3,802 )</td></tr><tr><td>Balance at DecemberΒ 31, 2022</td><td></td><td>82,593</td><td>​ ​</td><td>$</td><td>734,426</td><td>​ ​</td><td>$</td><td>2,236,869</td><td></td><td>( 31,994 )</td><td>​ ​</td><td>$</td><td>( 619,862 )</td><td>​ ​</td><td>$</td><td>( 3,802 )</td><td>​ ​</td><td>$</td><td>2,347,631</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>130</td><td>​ ​</td><td>​ ​</td><td>57</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>57</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 32 )</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>117</td><td>​ ​</td><td>​ ​</td><td>2,754</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,754</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td></tr><tr><td>Treasury stock purchases and related excise tax</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 10,589 )</td><td>​ ​</td><td></td><td>( 291,949 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 291,949 )</td></tr><tr><td>Net unrealized appreciation on marketable securities, net of tax of $ 1,329</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>4,127</td><td>​ ​</td><td></td><td>4,127</td></tr><tr><td>Balance at DecemberΒ 31, 2023</td><td></td><td>82,840</td><td>​ ​</td><td>$</td><td>754,362</td><td>​ ​</td><td>$</td><td>2,271,211</td><td></td><td>( 42,615 )</td><td>​ ​</td><td>$</td><td>( 912,396 )</td><td>​ ​</td><td>$</td><td>325</td><td>​ ​</td><td>$</td><td>2,113,502</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td></tr><tr><td>Vested employee stock awards</td><td></td><td>270</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 117 )</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>48</td><td>​ ​</td><td>​ ​</td><td>2,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,864</td></tr><tr><td>Issuance of common stock upon warrant exercise, net</td><td>​ ​</td><td>481</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td></tr><tr><td>Treasury stock purchases</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 578 )</td><td>​ ​</td><td></td><td>( 43,324 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>( 43,324 )</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 51</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td></tr><tr><td>Balance at DecemberΒ 31, 2024</td><td></td><td>83,639</td><td>​ ​</td><td>$</td><td>777,090</td><td>​ ​</td><td>$</td><td>2,594,173</td><td></td><td>( 43,310 )</td><td>​ ​</td><td>$</td><td>( 962,650 )</td><td>​ ​</td><td>$</td><td>168</td><td>​ ​</td><td>$</td><td>2,408,781</td></tr></table>
table
2347631
monetaryItemType
table: <entity> 2347631 </entity> <entity type> monetaryItemType </entity type> <context> Balance at DecemberΒ 31, 2022 | 82,593 | ​ ​ | $ | 734,426 | ​ ​ | $ | 2,236,869 | ( 31,994 ) | ​ ​ | $ | ( 619,862 ) | ​ ​ | $ | ( 3,802 ) | ​ ​ | $ | 2,347,631 </context>
us-gaap:StockholdersEquity
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Accumulated</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Other</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>CommonΒ Stock</td><td>​ ​</td><td>Retained</td><td>​ ​</td><td>TreasuryΒ Stock</td><td>​ ​</td><td>Comprehensive</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>Earnings</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>IncomeΒ (Loss)</td><td>​ ​</td><td>Total</td></tr><tr><td>Balance at DecemberΒ 31, 2021</td><td></td><td>82,336</td><td>​ ​</td><td>$</td><td>722,310</td><td>​ ​</td><td>$</td><td>2,163,916</td><td></td><td>( 31,956 )</td><td>​ ​</td><td>$</td><td>( 618,712 )</td><td>​ ​</td><td>$</td><td>β€”</td><td>​ ​</td><td>$</td><td>2,267,514</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>151</td><td>​ ​</td><td>​ ​</td><td>142</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>142</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 38 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>106</td><td>​ ​</td><td>​ ​</td><td>2,815</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,815</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 1,224</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 3,802 )</td><td>​ ​</td><td></td><td>( 3,802 )</td></tr><tr><td>Balance at DecemberΒ 31, 2022</td><td></td><td>82,593</td><td>​ ​</td><td>$</td><td>734,426</td><td>​ ​</td><td>$</td><td>2,236,869</td><td></td><td>( 31,994 )</td><td>​ ​</td><td>$</td><td>( 619,862 )</td><td>​ ​</td><td>$</td><td>( 3,802 )</td><td>​ ​</td><td>$</td><td>2,347,631</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>130</td><td>​ ​</td><td>​ ​</td><td>57</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>57</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 32 )</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>117</td><td>​ ​</td><td>​ ​</td><td>2,754</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,754</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td></tr><tr><td>Treasury stock purchases and related excise tax</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 10,589 )</td><td>​ ​</td><td></td><td>( 291,949 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 291,949 )</td></tr><tr><td>Net unrealized appreciation on marketable securities, net of tax of $ 1,329</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>4,127</td><td>​ ​</td><td></td><td>4,127</td></tr><tr><td>Balance at DecemberΒ 31, 2023</td><td></td><td>82,840</td><td>​ ​</td><td>$</td><td>754,362</td><td>​ ​</td><td>$</td><td>2,271,211</td><td></td><td>( 42,615 )</td><td>​ ​</td><td>$</td><td>( 912,396 )</td><td>​ ​</td><td>$</td><td>325</td><td>​ ​</td><td>$</td><td>2,113,502</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td></tr><tr><td>Vested employee stock awards</td><td></td><td>270</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 117 )</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>48</td><td>​ ​</td><td>​ ​</td><td>2,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,864</td></tr><tr><td>Issuance of common stock upon warrant exercise, net</td><td>​ ​</td><td>481</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td></tr><tr><td>Treasury stock purchases</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 578 )</td><td>​ ​</td><td></td><td>( 43,324 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>( 43,324 )</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 51</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td></tr><tr><td>Balance at DecemberΒ 31, 2024</td><td></td><td>83,639</td><td>​ ​</td><td>$</td><td>777,090</td><td>​ ​</td><td>$</td><td>2,594,173</td><td></td><td>( 43,310 )</td><td>​ ​</td><td>$</td><td>( 962,650 )</td><td>​ ​</td><td>$</td><td>168</td><td>​ ​</td><td>$</td><td>2,408,781</td></tr></table>
table
34342
monetaryItemType
table: <entity> 34342 </entity> <entity type> monetaryItemType </entity type> <context> Net income | β€” | ​ ​ | β€” | ​ ​ | 34,342 | β€” | ​ ​ | β€” | ​ ​ | β€” | ​ ​ | 34,342 </context>
us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Accumulated</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Other</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>CommonΒ Stock</td><td>​ ​</td><td>Retained</td><td>​ ​</td><td>TreasuryΒ Stock</td><td>​ ​</td><td>Comprehensive</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>Earnings</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>IncomeΒ (Loss)</td><td>​ ​</td><td>Total</td></tr><tr><td>Balance at DecemberΒ 31, 2021</td><td></td><td>82,336</td><td>​ ​</td><td>$</td><td>722,310</td><td>​ ​</td><td>$</td><td>2,163,916</td><td></td><td>( 31,956 )</td><td>​ ​</td><td>$</td><td>( 618,712 )</td><td>​ ​</td><td>$</td><td>β€”</td><td>​ ​</td><td>$</td><td>2,267,514</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>151</td><td>​ ​</td><td>​ ​</td><td>142</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>142</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 38 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>106</td><td>​ ​</td><td>​ ​</td><td>2,815</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,815</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 1,224</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 3,802 )</td><td>​ ​</td><td></td><td>( 3,802 )</td></tr><tr><td>Balance at DecemberΒ 31, 2022</td><td></td><td>82,593</td><td>​ ​</td><td>$</td><td>734,426</td><td>​ ​</td><td>$</td><td>2,236,869</td><td></td><td>( 31,994 )</td><td>​ ​</td><td>$</td><td>( 619,862 )</td><td>​ ​</td><td>$</td><td>( 3,802 )</td><td>​ ​</td><td>$</td><td>2,347,631</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>130</td><td>​ ​</td><td>​ ​</td><td>57</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>57</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 32 )</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>117</td><td>​ ​</td><td>​ ​</td><td>2,754</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,754</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td></tr><tr><td>Treasury stock purchases and related excise tax</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 10,589 )</td><td>​ ​</td><td></td><td>( 291,949 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 291,949 )</td></tr><tr><td>Net unrealized appreciation on marketable securities, net of tax of $ 1,329</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>4,127</td><td>​ ​</td><td></td><td>4,127</td></tr><tr><td>Balance at DecemberΒ 31, 2023</td><td></td><td>82,840</td><td>​ ​</td><td>$</td><td>754,362</td><td>​ ​</td><td>$</td><td>2,271,211</td><td></td><td>( 42,615 )</td><td>​ ​</td><td>$</td><td>( 912,396 )</td><td>​ ​</td><td>$</td><td>325</td><td>​ ​</td><td>$</td><td>2,113,502</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td></tr><tr><td>Vested employee stock awards</td><td></td><td>270</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 117 )</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>48</td><td>​ ​</td><td>​ ​</td><td>2,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,864</td></tr><tr><td>Issuance of common stock upon warrant exercise, net</td><td>​ ​</td><td>481</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td></tr><tr><td>Treasury stock purchases</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 578 )</td><td>​ ​</td><td></td><td>( 43,324 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>( 43,324 )</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 51</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td></tr><tr><td>Balance at DecemberΒ 31, 2024</td><td></td><td>83,639</td><td>​ ​</td><td>$</td><td>777,090</td><td>​ ​</td><td>$</td><td>2,594,173</td><td></td><td>( 43,310 )</td><td>​ ​</td><td>$</td><td>( 962,650 )</td><td>​ ​</td><td>$</td><td>168</td><td>​ ​</td><td>$</td><td>2,408,781</td></tr></table>
table
130
sharesItemType
table: <entity> 130 </entity> <entity type> sharesItemType </entity type> <context> Exercise of common stock options and vested employee stock awards | 130 | ​ ​ | ​ ​ | 57 | ​ ​ | β€” | β€” | ​ ​ | β€” | ​ ​ | β€” | ​ ​ | 57 </context>
us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Accumulated</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Other</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>CommonΒ Stock</td><td>​ ​</td><td>Retained</td><td>​ ​</td><td>TreasuryΒ Stock</td><td>​ ​</td><td>Comprehensive</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>Earnings</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>IncomeΒ (Loss)</td><td>​ ​</td><td>Total</td></tr><tr><td>Balance at DecemberΒ 31, 2021</td><td></td><td>82,336</td><td>​ ​</td><td>$</td><td>722,310</td><td>​ ​</td><td>$</td><td>2,163,916</td><td></td><td>( 31,956 )</td><td>​ ​</td><td>$</td><td>( 618,712 )</td><td>​ ​</td><td>$</td><td>β€”</td><td>​ ​</td><td>$</td><td>2,267,514</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>151</td><td>​ ​</td><td>​ ​</td><td>142</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>142</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 38 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>106</td><td>​ ​</td><td>​ ​</td><td>2,815</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,815</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 1,224</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 3,802 )</td><td>​ ​</td><td></td><td>( 3,802 )</td></tr><tr><td>Balance at DecemberΒ 31, 2022</td><td></td><td>82,593</td><td>​ ​</td><td>$</td><td>734,426</td><td>​ ​</td><td>$</td><td>2,236,869</td><td></td><td>( 31,994 )</td><td>​ ​</td><td>$</td><td>( 619,862 )</td><td>​ ​</td><td>$</td><td>( 3,802 )</td><td>​ ​</td><td>$</td><td>2,347,631</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>130</td><td>​ ​</td><td>​ ​</td><td>57</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>57</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 32 )</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>117</td><td>​ ​</td><td>​ ​</td><td>2,754</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,754</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td></tr><tr><td>Treasury stock purchases and related excise tax</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 10,589 )</td><td>​ ​</td><td></td><td>( 291,949 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 291,949 )</td></tr><tr><td>Net unrealized appreciation on marketable securities, net of tax of $ 1,329</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>4,127</td><td>​ ​</td><td></td><td>4,127</td></tr><tr><td>Balance at DecemberΒ 31, 2023</td><td></td><td>82,840</td><td>​ ​</td><td>$</td><td>754,362</td><td>​ ​</td><td>$</td><td>2,271,211</td><td></td><td>( 42,615 )</td><td>​ ​</td><td>$</td><td>( 912,396 )</td><td>​ ​</td><td>$</td><td>325</td><td>​ ​</td><td>$</td><td>2,113,502</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td></tr><tr><td>Vested employee stock awards</td><td></td><td>270</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 117 )</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>48</td><td>​ ​</td><td>​ ​</td><td>2,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,864</td></tr><tr><td>Issuance of common stock upon warrant exercise, net</td><td>​ ​</td><td>481</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td></tr><tr><td>Treasury stock purchases</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 578 )</td><td>​ ​</td><td></td><td>( 43,324 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>( 43,324 )</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 51</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td></tr><tr><td>Balance at DecemberΒ 31, 2024</td><td></td><td>83,639</td><td>​ ​</td><td>$</td><td>777,090</td><td>​ ​</td><td>$</td><td>2,594,173</td><td></td><td>( 43,310 )</td><td>​ ​</td><td>$</td><td>( 962,650 )</td><td>​ ​</td><td>$</td><td>168</td><td>​ ​</td><td>$</td><td>2,408,781</td></tr></table>
table
57
monetaryItemType
table: <entity> 57 </entity> <entity type> monetaryItemType </entity type> <context> Exercise of common stock options and vested employee stock awards | 130 | ​ ​ | ​ ​ | 57 | ​ ​ | β€” | β€” | ​ ​ | β€” | ​ ​ | β€” | ​ ​ | 57 </context>
us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Accumulated</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Other</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>CommonΒ Stock</td><td>​ ​</td><td>Retained</td><td>​ ​</td><td>TreasuryΒ Stock</td><td>​ ​</td><td>Comprehensive</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>Earnings</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>IncomeΒ (Loss)</td><td>​ ​</td><td>Total</td></tr><tr><td>Balance at DecemberΒ 31, 2021</td><td></td><td>82,336</td><td>​ ​</td><td>$</td><td>722,310</td><td>​ ​</td><td>$</td><td>2,163,916</td><td></td><td>( 31,956 )</td><td>​ ​</td><td>$</td><td>( 618,712 )</td><td>​ ​</td><td>$</td><td>β€”</td><td>​ ​</td><td>$</td><td>2,267,514</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>151</td><td>​ ​</td><td>​ ​</td><td>142</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>142</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 38 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>106</td><td>​ ​</td><td>​ ​</td><td>2,815</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,815</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 1,224</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 3,802 )</td><td>​ ​</td><td></td><td>( 3,802 )</td></tr><tr><td>Balance at DecemberΒ 31, 2022</td><td></td><td>82,593</td><td>​ ​</td><td>$</td><td>734,426</td><td>​ ​</td><td>$</td><td>2,236,869</td><td></td><td>( 31,994 )</td><td>​ ​</td><td>$</td><td>( 619,862 )</td><td>​ ​</td><td>$</td><td>( 3,802 )</td><td>​ ​</td><td>$</td><td>2,347,631</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>130</td><td>​ ​</td><td>​ ​</td><td>57</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>57</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 32 )</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>117</td><td>​ ​</td><td>​ ​</td><td>2,754</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,754</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td></tr><tr><td>Treasury stock purchases and related excise tax</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 10,589 )</td><td>​ ​</td><td></td><td>( 291,949 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 291,949 )</td></tr><tr><td>Net unrealized appreciation on marketable securities, net of tax of $ 1,329</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>4,127</td><td>​ ​</td><td></td><td>4,127</td></tr><tr><td>Balance at DecemberΒ 31, 2023</td><td></td><td>82,840</td><td>​ ​</td><td>$</td><td>754,362</td><td>​ ​</td><td>$</td><td>2,271,211</td><td></td><td>( 42,615 )</td><td>​ ​</td><td>$</td><td>( 912,396 )</td><td>​ ​</td><td>$</td><td>325</td><td>​ ​</td><td>$</td><td>2,113,502</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td></tr><tr><td>Vested employee stock awards</td><td></td><td>270</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 117 )</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>48</td><td>​ ​</td><td>​ ​</td><td>2,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,864</td></tr><tr><td>Issuance of common stock upon warrant exercise, net</td><td>​ ​</td><td>481</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td></tr><tr><td>Treasury stock purchases</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 578 )</td><td>​ ​</td><td></td><td>( 43,324 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>( 43,324 )</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 51</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td></tr><tr><td>Balance at DecemberΒ 31, 2024</td><td></td><td>83,639</td><td>​ ​</td><td>$</td><td>777,090</td><td>​ ​</td><td>$</td><td>2,594,173</td><td></td><td>( 43,310 )</td><td>​ ​</td><td>$</td><td>( 962,650 )</td><td>​ ​</td><td>$</td><td>168</td><td>​ ​</td><td>$</td><td>2,408,781</td></tr></table>
table
32
sharesItemType
table: <entity> 32 </entity> <entity type> sharesItemType </entity type> <context> None </context>
us-gaap:SharesPaidForTaxWithholdingForShareBasedCompensation
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Accumulated</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Other</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>CommonΒ Stock</td><td>​ ​</td><td>Retained</td><td>​ ​</td><td>TreasuryΒ Stock</td><td>​ ​</td><td>Comprehensive</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>Earnings</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>IncomeΒ (Loss)</td><td>​ ​</td><td>Total</td></tr><tr><td>Balance at DecemberΒ 31, 2021</td><td></td><td>82,336</td><td>​ ​</td><td>$</td><td>722,310</td><td>​ ​</td><td>$</td><td>2,163,916</td><td></td><td>( 31,956 )</td><td>​ ​</td><td>$</td><td>( 618,712 )</td><td>​ ​</td><td>$</td><td>β€”</td><td>​ ​</td><td>$</td><td>2,267,514</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>151</td><td>​ ​</td><td>​ ​</td><td>142</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>142</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 38 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>106</td><td>​ ​</td><td>​ ​</td><td>2,815</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,815</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 1,224</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 3,802 )</td><td>​ ​</td><td></td><td>( 3,802 )</td></tr><tr><td>Balance at DecemberΒ 31, 2022</td><td></td><td>82,593</td><td>​ ​</td><td>$</td><td>734,426</td><td>​ ​</td><td>$</td><td>2,236,869</td><td></td><td>( 31,994 )</td><td>​ ​</td><td>$</td><td>( 619,862 )</td><td>​ ​</td><td>$</td><td>( 3,802 )</td><td>​ ​</td><td>$</td><td>2,347,631</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>130</td><td>​ ​</td><td>​ ​</td><td>57</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>57</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 32 )</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>117</td><td>​ ​</td><td>​ ​</td><td>2,754</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,754</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td></tr><tr><td>Treasury stock purchases and related excise tax</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 10,589 )</td><td>​ ​</td><td></td><td>( 291,949 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 291,949 )</td></tr><tr><td>Net unrealized appreciation on marketable securities, net of tax of $ 1,329</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>4,127</td><td>​ ​</td><td></td><td>4,127</td></tr><tr><td>Balance at DecemberΒ 31, 2023</td><td></td><td>82,840</td><td>​ ​</td><td>$</td><td>754,362</td><td>​ ​</td><td>$</td><td>2,271,211</td><td></td><td>( 42,615 )</td><td>​ ​</td><td>$</td><td>( 912,396 )</td><td>​ ​</td><td>$</td><td>325</td><td>​ ​</td><td>$</td><td>2,113,502</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td></tr><tr><td>Vested employee stock awards</td><td></td><td>270</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 117 )</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>48</td><td>​ ​</td><td>​ ​</td><td>2,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,864</td></tr><tr><td>Issuance of common stock upon warrant exercise, net</td><td>​ ​</td><td>481</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td></tr><tr><td>Treasury stock purchases</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 578 )</td><td>​ ​</td><td></td><td>( 43,324 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>( 43,324 )</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 51</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td></tr><tr><td>Balance at DecemberΒ 31, 2024</td><td></td><td>83,639</td><td>​ ​</td><td>$</td><td>777,090</td><td>​ ​</td><td>$</td><td>2,594,173</td><td></td><td>( 43,310 )</td><td>​ ​</td><td>$</td><td>( 962,650 )</td><td>​ ​</td><td>$</td><td>168</td><td>​ ​</td><td>$</td><td>2,408,781</td></tr></table>
table
117
sharesItemType
table: <entity> 117 </entity> <entity type> sharesItemType </entity type> <context> Sale of common stock under employee stock purchase plan | 117 | ​ ​ | ​ ​ | 2,754 | ​ ​ | β€” | β€” | ​ ​ | β€” | ​ ​ | β€” | ​ ​ | 2,754 </context>
us-gaap:StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Accumulated</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Other</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>CommonΒ Stock</td><td>​ ​</td><td>Retained</td><td>​ ​</td><td>TreasuryΒ Stock</td><td>​ ​</td><td>Comprehensive</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>Earnings</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>IncomeΒ (Loss)</td><td>​ ​</td><td>Total</td></tr><tr><td>Balance at DecemberΒ 31, 2021</td><td></td><td>82,336</td><td>​ ​</td><td>$</td><td>722,310</td><td>​ ​</td><td>$</td><td>2,163,916</td><td></td><td>( 31,956 )</td><td>​ ​</td><td>$</td><td>( 618,712 )</td><td>​ ​</td><td>$</td><td>β€”</td><td>​ ​</td><td>$</td><td>2,267,514</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>151</td><td>​ ​</td><td>​ ​</td><td>142</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>142</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 38 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>106</td><td>​ ​</td><td>​ ​</td><td>2,815</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,815</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 1,224</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 3,802 )</td><td>​ ​</td><td></td><td>( 3,802 )</td></tr><tr><td>Balance at DecemberΒ 31, 2022</td><td></td><td>82,593</td><td>​ ​</td><td>$</td><td>734,426</td><td>​ ​</td><td>$</td><td>2,236,869</td><td></td><td>( 31,994 )</td><td>​ ​</td><td>$</td><td>( 619,862 )</td><td>​ ​</td><td>$</td><td>( 3,802 )</td><td>​ ​</td><td>$</td><td>2,347,631</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>130</td><td>​ ​</td><td>​ ​</td><td>57</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>57</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 32 )</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>117</td><td>​ ​</td><td>​ ​</td><td>2,754</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,754</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td></tr><tr><td>Treasury stock purchases and related excise tax</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 10,589 )</td><td>​ ​</td><td></td><td>( 291,949 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 291,949 )</td></tr><tr><td>Net unrealized appreciation on marketable securities, net of tax of $ 1,329</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>4,127</td><td>​ ​</td><td></td><td>4,127</td></tr><tr><td>Balance at DecemberΒ 31, 2023</td><td></td><td>82,840</td><td>​ ​</td><td>$</td><td>754,362</td><td>​ ​</td><td>$</td><td>2,271,211</td><td></td><td>( 42,615 )</td><td>​ ​</td><td>$</td><td>( 912,396 )</td><td>​ ​</td><td>$</td><td>325</td><td>​ ​</td><td>$</td><td>2,113,502</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td></tr><tr><td>Vested employee stock awards</td><td></td><td>270</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 117 )</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>48</td><td>​ ​</td><td>​ ​</td><td>2,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,864</td></tr><tr><td>Issuance of common stock upon warrant exercise, net</td><td>​ ​</td><td>481</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td></tr><tr><td>Treasury stock purchases</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 578 )</td><td>​ ​</td><td></td><td>( 43,324 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>( 43,324 )</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 51</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td></tr><tr><td>Balance at DecemberΒ 31, 2024</td><td></td><td>83,639</td><td>​ ​</td><td>$</td><td>777,090</td><td>​ ​</td><td>$</td><td>2,594,173</td><td></td><td>( 43,310 )</td><td>​ ​</td><td>$</td><td>( 962,650 )</td><td>​ ​</td><td>$</td><td>168</td><td>​ ​</td><td>$</td><td>2,408,781</td></tr></table>
table
2754
monetaryItemType
table: <entity> 2754 </entity> <entity type> monetaryItemType </entity type> <context> Sale of common stock under employee stock purchase plan | 117 | ​ ​ | ​ ​ | 2,754 | ​ ​ | β€” | β€” | ​ ​ | β€” | ​ ​ | β€” | ​ ​ | 2,754 </context>
us-gaap:StockIssuedDuringPeriodValueEmployeeStockPurchasePlan
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Accumulated</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Other</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>CommonΒ Stock</td><td>​ ​</td><td>Retained</td><td>​ ​</td><td>TreasuryΒ Stock</td><td>​ ​</td><td>Comprehensive</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>Earnings</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>IncomeΒ (Loss)</td><td>​ ​</td><td>Total</td></tr><tr><td>Balance at DecemberΒ 31, 2021</td><td></td><td>82,336</td><td>​ ​</td><td>$</td><td>722,310</td><td>​ ​</td><td>$</td><td>2,163,916</td><td></td><td>( 31,956 )</td><td>​ ​</td><td>$</td><td>( 618,712 )</td><td>​ ​</td><td>$</td><td>β€”</td><td>​ ​</td><td>$</td><td>2,267,514</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>151</td><td>​ ​</td><td>​ ​</td><td>142</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>142</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 38 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>106</td><td>​ ​</td><td>​ ​</td><td>2,815</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,815</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 1,224</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 3,802 )</td><td>​ ​</td><td></td><td>( 3,802 )</td></tr><tr><td>Balance at DecemberΒ 31, 2022</td><td></td><td>82,593</td><td>​ ​</td><td>$</td><td>734,426</td><td>​ ​</td><td>$</td><td>2,236,869</td><td></td><td>( 31,994 )</td><td>​ ​</td><td>$</td><td>( 619,862 )</td><td>​ ​</td><td>$</td><td>( 3,802 )</td><td>​ ​</td><td>$</td><td>2,347,631</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>130</td><td>​ ​</td><td>​ ​</td><td>57</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>57</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 32 )</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>117</td><td>​ ​</td><td>​ ​</td><td>2,754</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,754</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td></tr><tr><td>Treasury stock purchases and related excise tax</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 10,589 )</td><td>​ ​</td><td></td><td>( 291,949 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 291,949 )</td></tr><tr><td>Net unrealized appreciation on marketable securities, net of tax of $ 1,329</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>4,127</td><td>​ ​</td><td></td><td>4,127</td></tr><tr><td>Balance at DecemberΒ 31, 2023</td><td></td><td>82,840</td><td>​ ​</td><td>$</td><td>754,362</td><td>​ ​</td><td>$</td><td>2,271,211</td><td></td><td>( 42,615 )</td><td>​ ​</td><td>$</td><td>( 912,396 )</td><td>​ ​</td><td>$</td><td>325</td><td>​ ​</td><td>$</td><td>2,113,502</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td></tr><tr><td>Vested employee stock awards</td><td></td><td>270</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 117 )</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>48</td><td>​ ​</td><td>​ ​</td><td>2,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,864</td></tr><tr><td>Issuance of common stock upon warrant exercise, net</td><td>​ ​</td><td>481</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td></tr><tr><td>Treasury stock purchases</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 578 )</td><td>​ ​</td><td></td><td>( 43,324 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>( 43,324 )</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 51</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td></tr><tr><td>Balance at DecemberΒ 31, 2024</td><td></td><td>83,639</td><td>​ ​</td><td>$</td><td>777,090</td><td>​ ​</td><td>$</td><td>2,594,173</td><td></td><td>( 43,310 )</td><td>​ ​</td><td>$</td><td>( 962,650 )</td><td>​ ​</td><td>$</td><td>168</td><td>​ ​</td><td>$</td><td>2,408,781</td></tr></table>
table
17125
monetaryItemType
table: <entity> 17125 </entity> <entity type> monetaryItemType </entity type> <context> Stock based compensation expense | β€” | ​ ​ | 17,125 | ​ ​ | β€” | β€” | ​ ​ | β€” | ​ ​ | β€” | ​ ​ | 17,125 </context>
us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Accumulated</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Other</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>CommonΒ Stock</td><td>​ ​</td><td>Retained</td><td>​ ​</td><td>TreasuryΒ Stock</td><td>​ ​</td><td>Comprehensive</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>Earnings</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>IncomeΒ (Loss)</td><td>​ ​</td><td>Total</td></tr><tr><td>Balance at DecemberΒ 31, 2021</td><td></td><td>82,336</td><td>​ ​</td><td>$</td><td>722,310</td><td>​ ​</td><td>$</td><td>2,163,916</td><td></td><td>( 31,956 )</td><td>​ ​</td><td>$</td><td>( 618,712 )</td><td>​ ​</td><td>$</td><td>β€”</td><td>​ ​</td><td>$</td><td>2,267,514</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>151</td><td>​ ​</td><td>​ ​</td><td>142</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>142</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 38 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>106</td><td>​ ​</td><td>​ ​</td><td>2,815</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,815</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 1,224</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 3,802 )</td><td>​ ​</td><td></td><td>( 3,802 )</td></tr><tr><td>Balance at DecemberΒ 31, 2022</td><td></td><td>82,593</td><td>​ ​</td><td>$</td><td>734,426</td><td>​ ​</td><td>$</td><td>2,236,869</td><td></td><td>( 31,994 )</td><td>​ ​</td><td>$</td><td>( 619,862 )</td><td>​ ​</td><td>$</td><td>( 3,802 )</td><td>​ ​</td><td>$</td><td>2,347,631</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>130</td><td>​ ​</td><td>​ ​</td><td>57</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>57</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 32 )</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>117</td><td>​ ​</td><td>​ ​</td><td>2,754</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,754</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td></tr><tr><td>Treasury stock purchases and related excise tax</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 10,589 )</td><td>​ ​</td><td></td><td>( 291,949 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 291,949 )</td></tr><tr><td>Net unrealized appreciation on marketable securities, net of tax of $ 1,329</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>4,127</td><td>​ ​</td><td></td><td>4,127</td></tr><tr><td>Balance at DecemberΒ 31, 2023</td><td></td><td>82,840</td><td>​ ​</td><td>$</td><td>754,362</td><td>​ ​</td><td>$</td><td>2,271,211</td><td></td><td>( 42,615 )</td><td>​ ​</td><td>$</td><td>( 912,396 )</td><td>​ ​</td><td>$</td><td>325</td><td>​ ​</td><td>$</td><td>2,113,502</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td></tr><tr><td>Vested employee stock awards</td><td></td><td>270</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 117 )</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>48</td><td>​ ​</td><td>​ ​</td><td>2,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,864</td></tr><tr><td>Issuance of common stock upon warrant exercise, net</td><td>​ ​</td><td>481</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td></tr><tr><td>Treasury stock purchases</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 578 )</td><td>​ ​</td><td></td><td>( 43,324 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>( 43,324 )</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 51</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td></tr><tr><td>Balance at DecemberΒ 31, 2024</td><td></td><td>83,639</td><td>​ ​</td><td>$</td><td>777,090</td><td>​ ​</td><td>$</td><td>2,594,173</td><td></td><td>( 43,310 )</td><td>​ ​</td><td>$</td><td>( 962,650 )</td><td>​ ​</td><td>$</td><td>168</td><td>​ ​</td><td>$</td><td>2,408,781</td></tr></table>
table
10589
sharesItemType
table: <entity> 10589 </entity> <entity type> sharesItemType </entity type> <context> None </context>
us-gaap:TreasuryStockSharesRetired
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Accumulated</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Other</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>CommonΒ Stock</td><td>​ ​</td><td>Retained</td><td>​ ​</td><td>TreasuryΒ Stock</td><td>​ ​</td><td>Comprehensive</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>Earnings</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>IncomeΒ (Loss)</td><td>​ ​</td><td>Total</td></tr><tr><td>Balance at DecemberΒ 31, 2021</td><td></td><td>82,336</td><td>​ ​</td><td>$</td><td>722,310</td><td>​ ​</td><td>$</td><td>2,163,916</td><td></td><td>( 31,956 )</td><td>​ ​</td><td>$</td><td>( 618,712 )</td><td>​ ​</td><td>$</td><td>β€”</td><td>​ ​</td><td>$</td><td>2,267,514</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>151</td><td>​ ​</td><td>​ ​</td><td>142</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>142</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 38 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>106</td><td>​ ​</td><td>​ ​</td><td>2,815</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,815</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 1,224</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 3,802 )</td><td>​ ​</td><td></td><td>( 3,802 )</td></tr><tr><td>Balance at DecemberΒ 31, 2022</td><td></td><td>82,593</td><td>​ ​</td><td>$</td><td>734,426</td><td>​ ​</td><td>$</td><td>2,236,869</td><td></td><td>( 31,994 )</td><td>​ ​</td><td>$</td><td>( 619,862 )</td><td>​ ​</td><td>$</td><td>( 3,802 )</td><td>​ ​</td><td>$</td><td>2,347,631</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>130</td><td>​ ​</td><td>​ ​</td><td>57</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>57</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 32 )</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>117</td><td>​ ​</td><td>​ ​</td><td>2,754</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,754</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td></tr><tr><td>Treasury stock purchases and related excise tax</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 10,589 )</td><td>​ ​</td><td></td><td>( 291,949 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 291,949 )</td></tr><tr><td>Net unrealized appreciation on marketable securities, net of tax of $ 1,329</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>4,127</td><td>​ ​</td><td></td><td>4,127</td></tr><tr><td>Balance at DecemberΒ 31, 2023</td><td></td><td>82,840</td><td>​ ​</td><td>$</td><td>754,362</td><td>​ ​</td><td>$</td><td>2,271,211</td><td></td><td>( 42,615 )</td><td>​ ​</td><td>$</td><td>( 912,396 )</td><td>​ ​</td><td>$</td><td>325</td><td>​ ​</td><td>$</td><td>2,113,502</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td></tr><tr><td>Vested employee stock awards</td><td></td><td>270</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 117 )</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>48</td><td>​ ​</td><td>​ ​</td><td>2,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,864</td></tr><tr><td>Issuance of common stock upon warrant exercise, net</td><td>​ ​</td><td>481</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td></tr><tr><td>Treasury stock purchases</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 578 )</td><td>​ ​</td><td></td><td>( 43,324 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>( 43,324 )</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 51</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td></tr><tr><td>Balance at DecemberΒ 31, 2024</td><td></td><td>83,639</td><td>​ ​</td><td>$</td><td>777,090</td><td>​ ​</td><td>$</td><td>2,594,173</td><td></td><td>( 43,310 )</td><td>​ ​</td><td>$</td><td>( 962,650 )</td><td>​ ​</td><td>$</td><td>168</td><td>​ ​</td><td>$</td><td>2,408,781</td></tr></table>
table
291949
monetaryItemType
table: <entity> 291949 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:TreasuryStockRetiredCostMethodAmount
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Accumulated</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Other</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>CommonΒ Stock</td><td>​ ​</td><td>Retained</td><td>​ ​</td><td>TreasuryΒ Stock</td><td>​ ​</td><td>Comprehensive</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>Earnings</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>IncomeΒ (Loss)</td><td>​ ​</td><td>Total</td></tr><tr><td>Balance at DecemberΒ 31, 2021</td><td></td><td>82,336</td><td>​ ​</td><td>$</td><td>722,310</td><td>​ ​</td><td>$</td><td>2,163,916</td><td></td><td>( 31,956 )</td><td>​ ​</td><td>$</td><td>( 618,712 )</td><td>​ ​</td><td>$</td><td>β€”</td><td>​ ​</td><td>$</td><td>2,267,514</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>151</td><td>​ ​</td><td>​ ​</td><td>142</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>142</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 38 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>106</td><td>​ ​</td><td>​ ​</td><td>2,815</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,815</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 1,224</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 3,802 )</td><td>​ ​</td><td></td><td>( 3,802 )</td></tr><tr><td>Balance at DecemberΒ 31, 2022</td><td></td><td>82,593</td><td>​ ​</td><td>$</td><td>734,426</td><td>​ ​</td><td>$</td><td>2,236,869</td><td></td><td>( 31,994 )</td><td>​ ​</td><td>$</td><td>( 619,862 )</td><td>​ ​</td><td>$</td><td>( 3,802 )</td><td>​ ​</td><td>$</td><td>2,347,631</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>130</td><td>​ ​</td><td>​ ​</td><td>57</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>57</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 32 )</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>117</td><td>​ ​</td><td>​ ​</td><td>2,754</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,754</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td></tr><tr><td>Treasury stock purchases and related excise tax</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 10,589 )</td><td>​ ​</td><td></td><td>( 291,949 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 291,949 )</td></tr><tr><td>Net unrealized appreciation on marketable securities, net of tax of $ 1,329</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>4,127</td><td>​ ​</td><td></td><td>4,127</td></tr><tr><td>Balance at DecemberΒ 31, 2023</td><td></td><td>82,840</td><td>​ ​</td><td>$</td><td>754,362</td><td>​ ​</td><td>$</td><td>2,271,211</td><td></td><td>( 42,615 )</td><td>​ ​</td><td>$</td><td>( 912,396 )</td><td>​ ​</td><td>$</td><td>325</td><td>​ ​</td><td>$</td><td>2,113,502</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td></tr><tr><td>Vested employee stock awards</td><td></td><td>270</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 117 )</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>48</td><td>​ ​</td><td>​ ​</td><td>2,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,864</td></tr><tr><td>Issuance of common stock upon warrant exercise, net</td><td>​ ​</td><td>481</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td></tr><tr><td>Treasury stock purchases</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 578 )</td><td>​ ​</td><td></td><td>( 43,324 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>( 43,324 )</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 51</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td></tr><tr><td>Balance at DecemberΒ 31, 2024</td><td></td><td>83,639</td><td>​ ​</td><td>$</td><td>777,090</td><td>​ ​</td><td>$</td><td>2,594,173</td><td></td><td>( 43,310 )</td><td>​ ​</td><td>$</td><td>( 962,650 )</td><td>​ ​</td><td>$</td><td>168</td><td>​ ​</td><td>$</td><td>2,408,781</td></tr></table>
table
1329
monetaryItemType
table: <entity> 1329 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Accumulated</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Other</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>CommonΒ Stock</td><td>​ ​</td><td>Retained</td><td>​ ​</td><td>TreasuryΒ Stock</td><td>​ ​</td><td>Comprehensive</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>Earnings</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>IncomeΒ (Loss)</td><td>​ ​</td><td>Total</td></tr><tr><td>Balance at DecemberΒ 31, 2021</td><td></td><td>82,336</td><td>​ ​</td><td>$</td><td>722,310</td><td>​ ​</td><td>$</td><td>2,163,916</td><td></td><td>( 31,956 )</td><td>​ ​</td><td>$</td><td>( 618,712 )</td><td>​ ​</td><td>$</td><td>β€”</td><td>​ ​</td><td>$</td><td>2,267,514</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>151</td><td>​ ​</td><td>​ ​</td><td>142</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>142</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 38 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>106</td><td>​ ​</td><td>​ ​</td><td>2,815</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,815</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 1,224</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 3,802 )</td><td>​ ​</td><td></td><td>( 3,802 )</td></tr><tr><td>Balance at DecemberΒ 31, 2022</td><td></td><td>82,593</td><td>​ ​</td><td>$</td><td>734,426</td><td>​ ​</td><td>$</td><td>2,236,869</td><td></td><td>( 31,994 )</td><td>​ ​</td><td>$</td><td>( 619,862 )</td><td>​ ​</td><td>$</td><td>( 3,802 )</td><td>​ ​</td><td>$</td><td>2,347,631</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>130</td><td>​ ​</td><td>​ ​</td><td>57</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>57</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 32 )</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>117</td><td>​ ​</td><td>​ ​</td><td>2,754</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,754</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td></tr><tr><td>Treasury stock purchases and related excise tax</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 10,589 )</td><td>​ ​</td><td></td><td>( 291,949 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 291,949 )</td></tr><tr><td>Net unrealized appreciation on marketable securities, net of tax of $ 1,329</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>4,127</td><td>​ ​</td><td></td><td>4,127</td></tr><tr><td>Balance at DecemberΒ 31, 2023</td><td></td><td>82,840</td><td>​ ​</td><td>$</td><td>754,362</td><td>​ ​</td><td>$</td><td>2,271,211</td><td></td><td>( 42,615 )</td><td>​ ​</td><td>$</td><td>( 912,396 )</td><td>​ ​</td><td>$</td><td>325</td><td>​ ​</td><td>$</td><td>2,113,502</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td></tr><tr><td>Vested employee stock awards</td><td></td><td>270</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 117 )</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>48</td><td>​ ​</td><td>​ ​</td><td>2,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,864</td></tr><tr><td>Issuance of common stock upon warrant exercise, net</td><td>​ ​</td><td>481</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td></tr><tr><td>Treasury stock purchases</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 578 )</td><td>​ ​</td><td></td><td>( 43,324 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>( 43,324 )</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 51</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td></tr><tr><td>Balance at DecemberΒ 31, 2024</td><td></td><td>83,639</td><td>​ ​</td><td>$</td><td>777,090</td><td>​ ​</td><td>$</td><td>2,594,173</td><td></td><td>( 43,310 )</td><td>​ ​</td><td>$</td><td>( 962,650 )</td><td>​ ​</td><td>$</td><td>168</td><td>​ ​</td><td>$</td><td>2,408,781</td></tr></table>
table
4127
monetaryItemType
table: <entity> 4127 </entity> <entity type> monetaryItemType </entity type> <context> Net unrealized appreciation on marketable securities, net of tax of $ 1,329 | ​ ​ | β€” | ​ ​ | ​ ​ | β€” | ​ ​ | ​ ​ | β€” | ​ ​ | β€” | ​ ​ | ​ ​ | β€” | ​ ​ | ​ ​ | 4,127 | ​ ​ | 4,127 </context>
us-gaap:OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Accumulated</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Other</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>CommonΒ Stock</td><td>​ ​</td><td>Retained</td><td>​ ​</td><td>TreasuryΒ Stock</td><td>​ ​</td><td>Comprehensive</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>Earnings</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>IncomeΒ (Loss)</td><td>​ ​</td><td>Total</td></tr><tr><td>Balance at DecemberΒ 31, 2021</td><td></td><td>82,336</td><td>​ ​</td><td>$</td><td>722,310</td><td>​ ​</td><td>$</td><td>2,163,916</td><td></td><td>( 31,956 )</td><td>​ ​</td><td>$</td><td>( 618,712 )</td><td>​ ​</td><td>$</td><td>β€”</td><td>​ ​</td><td>$</td><td>2,267,514</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>151</td><td>​ ​</td><td>​ ​</td><td>142</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>142</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 38 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>106</td><td>​ ​</td><td>​ ​</td><td>2,815</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,815</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 1,224</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 3,802 )</td><td>​ ​</td><td></td><td>( 3,802 )</td></tr><tr><td>Balance at DecemberΒ 31, 2022</td><td></td><td>82,593</td><td>​ ​</td><td>$</td><td>734,426</td><td>​ ​</td><td>$</td><td>2,236,869</td><td></td><td>( 31,994 )</td><td>​ ​</td><td>$</td><td>( 619,862 )</td><td>​ ​</td><td>$</td><td>( 3,802 )</td><td>​ ​</td><td>$</td><td>2,347,631</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>130</td><td>​ ​</td><td>​ ​</td><td>57</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>57</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 32 )</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>117</td><td>​ ​</td><td>​ ​</td><td>2,754</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,754</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td></tr><tr><td>Treasury stock purchases and related excise tax</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 10,589 )</td><td>​ ​</td><td></td><td>( 291,949 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 291,949 )</td></tr><tr><td>Net unrealized appreciation on marketable securities, net of tax of $ 1,329</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>4,127</td><td>​ ​</td><td></td><td>4,127</td></tr><tr><td>Balance at DecemberΒ 31, 2023</td><td></td><td>82,840</td><td>​ ​</td><td>$</td><td>754,362</td><td>​ ​</td><td>$</td><td>2,271,211</td><td></td><td>( 42,615 )</td><td>​ ​</td><td>$</td><td>( 912,396 )</td><td>​ ​</td><td>$</td><td>325</td><td>​ ​</td><td>$</td><td>2,113,502</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td></tr><tr><td>Vested employee stock awards</td><td></td><td>270</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 117 )</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>48</td><td>​ ​</td><td>​ ​</td><td>2,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,864</td></tr><tr><td>Issuance of common stock upon warrant exercise, net</td><td>​ ​</td><td>481</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td></tr><tr><td>Treasury stock purchases</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 578 )</td><td>​ ​</td><td></td><td>( 43,324 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>( 43,324 )</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 51</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td></tr><tr><td>Balance at DecemberΒ 31, 2024</td><td></td><td>83,639</td><td>​ ​</td><td>$</td><td>777,090</td><td>​ ​</td><td>$</td><td>2,594,173</td><td></td><td>( 43,310 )</td><td>​ ​</td><td>$</td><td>( 962,650 )</td><td>​ ​</td><td>$</td><td>168</td><td>​ ​</td><td>$</td><td>2,408,781</td></tr></table>
table
82840
sharesItemType
table: <entity> 82840 </entity> <entity type> sharesItemType </entity type> <context> Balance at DecemberΒ 31, 2023 | 82,840 | ​ ​ | $ | 754,362 | ​ ​ | $ | 2,271,211 | ( 42,615 ) | ​ ​ | $ | ( 912,396 ) | ​ ​ | $ | 325 | ​ ​ | $ | 2,113,502 </context>
us-gaap:CommonStockSharesOutstanding
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Accumulated</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Other</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>CommonΒ Stock</td><td>​ ​</td><td>Retained</td><td>​ ​</td><td>TreasuryΒ Stock</td><td>​ ​</td><td>Comprehensive</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>Earnings</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>IncomeΒ (Loss)</td><td>​ ​</td><td>Total</td></tr><tr><td>Balance at DecemberΒ 31, 2021</td><td></td><td>82,336</td><td>​ ​</td><td>$</td><td>722,310</td><td>​ ​</td><td>$</td><td>2,163,916</td><td></td><td>( 31,956 )</td><td>​ ​</td><td>$</td><td>( 618,712 )</td><td>​ ​</td><td>$</td><td>β€”</td><td>​ ​</td><td>$</td><td>2,267,514</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>151</td><td>​ ​</td><td>​ ​</td><td>142</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>142</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 38 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>106</td><td>​ ​</td><td>​ ​</td><td>2,815</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,815</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 1,224</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 3,802 )</td><td>​ ​</td><td></td><td>( 3,802 )</td></tr><tr><td>Balance at DecemberΒ 31, 2022</td><td></td><td>82,593</td><td>​ ​</td><td>$</td><td>734,426</td><td>​ ​</td><td>$</td><td>2,236,869</td><td></td><td>( 31,994 )</td><td>​ ​</td><td>$</td><td>( 619,862 )</td><td>​ ​</td><td>$</td><td>( 3,802 )</td><td>​ ​</td><td>$</td><td>2,347,631</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>130</td><td>​ ​</td><td>​ ​</td><td>57</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>57</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 32 )</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>117</td><td>​ ​</td><td>​ ​</td><td>2,754</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,754</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td></tr><tr><td>Treasury stock purchases and related excise tax</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 10,589 )</td><td>​ ​</td><td></td><td>( 291,949 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 291,949 )</td></tr><tr><td>Net unrealized appreciation on marketable securities, net of tax of $ 1,329</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>4,127</td><td>​ ​</td><td></td><td>4,127</td></tr><tr><td>Balance at DecemberΒ 31, 2023</td><td></td><td>82,840</td><td>​ ​</td><td>$</td><td>754,362</td><td>​ ​</td><td>$</td><td>2,271,211</td><td></td><td>( 42,615 )</td><td>​ ​</td><td>$</td><td>( 912,396 )</td><td>​ ​</td><td>$</td><td>325</td><td>​ ​</td><td>$</td><td>2,113,502</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td></tr><tr><td>Vested employee stock awards</td><td></td><td>270</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 117 )</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>48</td><td>​ ​</td><td>​ ​</td><td>2,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,864</td></tr><tr><td>Issuance of common stock upon warrant exercise, net</td><td>​ ​</td><td>481</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td></tr><tr><td>Treasury stock purchases</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 578 )</td><td>​ ​</td><td></td><td>( 43,324 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>( 43,324 )</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 51</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td></tr><tr><td>Balance at DecemberΒ 31, 2024</td><td></td><td>83,639</td><td>​ ​</td><td>$</td><td>777,090</td><td>​ ​</td><td>$</td><td>2,594,173</td><td></td><td>( 43,310 )</td><td>​ ​</td><td>$</td><td>( 962,650 )</td><td>​ ​</td><td>$</td><td>168</td><td>​ ​</td><td>$</td><td>2,408,781</td></tr></table>
table
754362
monetaryItemType
table: <entity> 754362 </entity> <entity type> monetaryItemType </entity type> <context> Balance at DecemberΒ 31, 2023 | 82,840 | ​ ​ | $ | 754,362 | ​ ​ | $ | 2,271,211 | ( 42,615 ) | ​ ​ | $ | ( 912,396 ) | ​ ​ | $ | 325 | ​ ​ | $ | 2,113,502 </context>
us-gaap:StockholdersEquity
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Accumulated</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Other</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>CommonΒ Stock</td><td>​ ​</td><td>Retained</td><td>​ ​</td><td>TreasuryΒ Stock</td><td>​ ​</td><td>Comprehensive</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>Earnings</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>IncomeΒ (Loss)</td><td>​ ​</td><td>Total</td></tr><tr><td>Balance at DecemberΒ 31, 2021</td><td></td><td>82,336</td><td>​ ​</td><td>$</td><td>722,310</td><td>​ ​</td><td>$</td><td>2,163,916</td><td></td><td>( 31,956 )</td><td>​ ​</td><td>$</td><td>( 618,712 )</td><td>​ ​</td><td>$</td><td>β€”</td><td>​ ​</td><td>$</td><td>2,267,514</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>151</td><td>​ ​</td><td>​ ​</td><td>142</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>142</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 38 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>106</td><td>​ ​</td><td>​ ​</td><td>2,815</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,815</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 1,224</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 3,802 )</td><td>​ ​</td><td></td><td>( 3,802 )</td></tr><tr><td>Balance at DecemberΒ 31, 2022</td><td></td><td>82,593</td><td>​ ​</td><td>$</td><td>734,426</td><td>​ ​</td><td>$</td><td>2,236,869</td><td></td><td>( 31,994 )</td><td>​ ​</td><td>$</td><td>( 619,862 )</td><td>​ ​</td><td>$</td><td>( 3,802 )</td><td>​ ​</td><td>$</td><td>2,347,631</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>130</td><td>​ ​</td><td>​ ​</td><td>57</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>57</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 32 )</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>117</td><td>​ ​</td><td>​ ​</td><td>2,754</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,754</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td></tr><tr><td>Treasury stock purchases and related excise tax</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 10,589 )</td><td>​ ​</td><td></td><td>( 291,949 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 291,949 )</td></tr><tr><td>Net unrealized appreciation on marketable securities, net of tax of $ 1,329</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>4,127</td><td>​ ​</td><td></td><td>4,127</td></tr><tr><td>Balance at DecemberΒ 31, 2023</td><td></td><td>82,840</td><td>​ ​</td><td>$</td><td>754,362</td><td>​ ​</td><td>$</td><td>2,271,211</td><td></td><td>( 42,615 )</td><td>​ ​</td><td>$</td><td>( 912,396 )</td><td>​ ​</td><td>$</td><td>325</td><td>​ ​</td><td>$</td><td>2,113,502</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td></tr><tr><td>Vested employee stock awards</td><td></td><td>270</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 117 )</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>48</td><td>​ ​</td><td>​ ​</td><td>2,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,864</td></tr><tr><td>Issuance of common stock upon warrant exercise, net</td><td>​ ​</td><td>481</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td></tr><tr><td>Treasury stock purchases</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 578 )</td><td>​ ​</td><td></td><td>( 43,324 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>( 43,324 )</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 51</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td></tr><tr><td>Balance at DecemberΒ 31, 2024</td><td></td><td>83,639</td><td>​ ​</td><td>$</td><td>777,090</td><td>​ ​</td><td>$</td><td>2,594,173</td><td></td><td>( 43,310 )</td><td>​ ​</td><td>$</td><td>( 962,650 )</td><td>​ ​</td><td>$</td><td>168</td><td>​ ​</td><td>$</td><td>2,408,781</td></tr></table>
table
2271211
monetaryItemType
table: <entity> 2271211 </entity> <entity type> monetaryItemType </entity type> <context> Balance at DecemberΒ 31, 2023 | 82,840 | ​ ​ | $ | 754,362 | ​ ​ | $ | 2,271,211 | ( 42,615 ) | ​ ​ | $ | ( 912,396 ) | ​ ​ | $ | 325 | ​ ​ | $ | 2,113,502 </context>
us-gaap:StockholdersEquity
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Accumulated</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Other</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>CommonΒ Stock</td><td>​ ​</td><td>Retained</td><td>​ ​</td><td>TreasuryΒ Stock</td><td>​ ​</td><td>Comprehensive</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>Earnings</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>IncomeΒ (Loss)</td><td>​ ​</td><td>Total</td></tr><tr><td>Balance at DecemberΒ 31, 2021</td><td></td><td>82,336</td><td>​ ​</td><td>$</td><td>722,310</td><td>​ ​</td><td>$</td><td>2,163,916</td><td></td><td>( 31,956 )</td><td>​ ​</td><td>$</td><td>( 618,712 )</td><td>​ ​</td><td>$</td><td>β€”</td><td>​ ​</td><td>$</td><td>2,267,514</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>151</td><td>​ ​</td><td>​ ​</td><td>142</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>142</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 38 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>106</td><td>​ ​</td><td>​ ​</td><td>2,815</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,815</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 1,224</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 3,802 )</td><td>​ ​</td><td></td><td>( 3,802 )</td></tr><tr><td>Balance at DecemberΒ 31, 2022</td><td></td><td>82,593</td><td>​ ​</td><td>$</td><td>734,426</td><td>​ ​</td><td>$</td><td>2,236,869</td><td></td><td>( 31,994 )</td><td>​ ​</td><td>$</td><td>( 619,862 )</td><td>​ ​</td><td>$</td><td>( 3,802 )</td><td>​ ​</td><td>$</td><td>2,347,631</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>130</td><td>​ ​</td><td>​ ​</td><td>57</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>57</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 32 )</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>117</td><td>​ ​</td><td>​ ​</td><td>2,754</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,754</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td></tr><tr><td>Treasury stock purchases and related excise tax</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 10,589 )</td><td>​ ​</td><td></td><td>( 291,949 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 291,949 )</td></tr><tr><td>Net unrealized appreciation on marketable securities, net of tax of $ 1,329</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>4,127</td><td>​ ​</td><td></td><td>4,127</td></tr><tr><td>Balance at DecemberΒ 31, 2023</td><td></td><td>82,840</td><td>​ ​</td><td>$</td><td>754,362</td><td>​ ​</td><td>$</td><td>2,271,211</td><td></td><td>( 42,615 )</td><td>​ ​</td><td>$</td><td>( 912,396 )</td><td>​ ​</td><td>$</td><td>325</td><td>​ ​</td><td>$</td><td>2,113,502</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td></tr><tr><td>Vested employee stock awards</td><td></td><td>270</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 117 )</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>48</td><td>​ ​</td><td>​ ​</td><td>2,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,864</td></tr><tr><td>Issuance of common stock upon warrant exercise, net</td><td>​ ​</td><td>481</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td></tr><tr><td>Treasury stock purchases</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 578 )</td><td>​ ​</td><td></td><td>( 43,324 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>( 43,324 )</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 51</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td></tr><tr><td>Balance at DecemberΒ 31, 2024</td><td></td><td>83,639</td><td>​ ​</td><td>$</td><td>777,090</td><td>​ ​</td><td>$</td><td>2,594,173</td><td></td><td>( 43,310 )</td><td>​ ​</td><td>$</td><td>( 962,650 )</td><td>​ ​</td><td>$</td><td>168</td><td>​ ​</td><td>$</td><td>2,408,781</td></tr></table>
table
42615
sharesItemType
table: <entity> 42615 </entity> <entity type> sharesItemType </entity type> <context> None </context>
us-gaap:TreasuryStockCommonShares
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Accumulated</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Other</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>CommonΒ Stock</td><td>​ ​</td><td>Retained</td><td>​ ​</td><td>TreasuryΒ Stock</td><td>​ ​</td><td>Comprehensive</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>Earnings</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>IncomeΒ (Loss)</td><td>​ ​</td><td>Total</td></tr><tr><td>Balance at DecemberΒ 31, 2021</td><td></td><td>82,336</td><td>​ ​</td><td>$</td><td>722,310</td><td>​ ​</td><td>$</td><td>2,163,916</td><td></td><td>( 31,956 )</td><td>​ ​</td><td>$</td><td>( 618,712 )</td><td>​ ​</td><td>$</td><td>β€”</td><td>​ ​</td><td>$</td><td>2,267,514</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>151</td><td>​ ​</td><td>​ ​</td><td>142</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>142</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 38 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>106</td><td>​ ​</td><td>​ ​</td><td>2,815</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,815</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 1,224</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 3,802 )</td><td>​ ​</td><td></td><td>( 3,802 )</td></tr><tr><td>Balance at DecemberΒ 31, 2022</td><td></td><td>82,593</td><td>​ ​</td><td>$</td><td>734,426</td><td>​ ​</td><td>$</td><td>2,236,869</td><td></td><td>( 31,994 )</td><td>​ ​</td><td>$</td><td>( 619,862 )</td><td>​ ​</td><td>$</td><td>( 3,802 )</td><td>​ ​</td><td>$</td><td>2,347,631</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>130</td><td>​ ​</td><td>​ ​</td><td>57</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>57</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 32 )</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>117</td><td>​ ​</td><td>​ ​</td><td>2,754</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,754</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td></tr><tr><td>Treasury stock purchases and related excise tax</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 10,589 )</td><td>​ ​</td><td></td><td>( 291,949 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 291,949 )</td></tr><tr><td>Net unrealized appreciation on marketable securities, net of tax of $ 1,329</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>4,127</td><td>​ ​</td><td></td><td>4,127</td></tr><tr><td>Balance at DecemberΒ 31, 2023</td><td></td><td>82,840</td><td>​ ​</td><td>$</td><td>754,362</td><td>​ ​</td><td>$</td><td>2,271,211</td><td></td><td>( 42,615 )</td><td>​ ​</td><td>$</td><td>( 912,396 )</td><td>​ ​</td><td>$</td><td>325</td><td>​ ​</td><td>$</td><td>2,113,502</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td></tr><tr><td>Vested employee stock awards</td><td></td><td>270</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 117 )</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>48</td><td>​ ​</td><td>​ ​</td><td>2,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,864</td></tr><tr><td>Issuance of common stock upon warrant exercise, net</td><td>​ ​</td><td>481</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td></tr><tr><td>Treasury stock purchases</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 578 )</td><td>​ ​</td><td></td><td>( 43,324 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>( 43,324 )</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 51</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td></tr><tr><td>Balance at DecemberΒ 31, 2024</td><td></td><td>83,639</td><td>​ ​</td><td>$</td><td>777,090</td><td>​ ​</td><td>$</td><td>2,594,173</td><td></td><td>( 43,310 )</td><td>​ ​</td><td>$</td><td>( 962,650 )</td><td>​ ​</td><td>$</td><td>168</td><td>​ ​</td><td>$</td><td>2,408,781</td></tr></table>
table
912396
monetaryItemType
table: <entity> 912396 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:StockholdersEquity
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Accumulated</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Other</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>CommonΒ Stock</td><td>​ ​</td><td>Retained</td><td>​ ​</td><td>TreasuryΒ Stock</td><td>​ ​</td><td>Comprehensive</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>Earnings</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>IncomeΒ (Loss)</td><td>​ ​</td><td>Total</td></tr><tr><td>Balance at DecemberΒ 31, 2021</td><td></td><td>82,336</td><td>​ ​</td><td>$</td><td>722,310</td><td>​ ​</td><td>$</td><td>2,163,916</td><td></td><td>( 31,956 )</td><td>​ ​</td><td>$</td><td>( 618,712 )</td><td>​ ​</td><td>$</td><td>β€”</td><td>​ ​</td><td>$</td><td>2,267,514</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>151</td><td>​ ​</td><td>​ ​</td><td>142</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>142</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 38 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>106</td><td>​ ​</td><td>​ ​</td><td>2,815</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,815</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 1,224</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 3,802 )</td><td>​ ​</td><td></td><td>( 3,802 )</td></tr><tr><td>Balance at DecemberΒ 31, 2022</td><td></td><td>82,593</td><td>​ ​</td><td>$</td><td>734,426</td><td>​ ​</td><td>$</td><td>2,236,869</td><td></td><td>( 31,994 )</td><td>​ ​</td><td>$</td><td>( 619,862 )</td><td>​ ​</td><td>$</td><td>( 3,802 )</td><td>​ ​</td><td>$</td><td>2,347,631</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>130</td><td>​ ​</td><td>​ ​</td><td>57</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>57</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 32 )</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>117</td><td>​ ​</td><td>​ ​</td><td>2,754</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,754</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td></tr><tr><td>Treasury stock purchases and related excise tax</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 10,589 )</td><td>​ ​</td><td></td><td>( 291,949 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 291,949 )</td></tr><tr><td>Net unrealized appreciation on marketable securities, net of tax of $ 1,329</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>4,127</td><td>​ ​</td><td></td><td>4,127</td></tr><tr><td>Balance at DecemberΒ 31, 2023</td><td></td><td>82,840</td><td>​ ​</td><td>$</td><td>754,362</td><td>​ ​</td><td>$</td><td>2,271,211</td><td></td><td>( 42,615 )</td><td>​ ​</td><td>$</td><td>( 912,396 )</td><td>​ ​</td><td>$</td><td>325</td><td>​ ​</td><td>$</td><td>2,113,502</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td></tr><tr><td>Vested employee stock awards</td><td></td><td>270</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 117 )</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>48</td><td>​ ​</td><td>​ ​</td><td>2,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,864</td></tr><tr><td>Issuance of common stock upon warrant exercise, net</td><td>​ ​</td><td>481</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td></tr><tr><td>Treasury stock purchases</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 578 )</td><td>​ ​</td><td></td><td>( 43,324 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>( 43,324 )</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 51</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td></tr><tr><td>Balance at DecemberΒ 31, 2024</td><td></td><td>83,639</td><td>​ ​</td><td>$</td><td>777,090</td><td>​ ​</td><td>$</td><td>2,594,173</td><td></td><td>( 43,310 )</td><td>​ ​</td><td>$</td><td>( 962,650 )</td><td>​ ​</td><td>$</td><td>168</td><td>​ ​</td><td>$</td><td>2,408,781</td></tr></table>
table
325
monetaryItemType
table: <entity> 325 </entity> <entity type> monetaryItemType </entity type> <context> Balance at DecemberΒ 31, 2023 | 82,840 | ​ ​ | $ | 754,362 | ​ ​ | $ | 2,271,211 | ( 42,615 ) | ​ ​ | $ | ( 912,396 ) | ​ ​ | $ | 325 | ​ ​ | $ | 2,113,502 </context>
us-gaap:StockholdersEquity
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Accumulated</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Other</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>CommonΒ Stock</td><td>​ ​</td><td>Retained</td><td>​ ​</td><td>TreasuryΒ Stock</td><td>​ ​</td><td>Comprehensive</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>Earnings</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>IncomeΒ (Loss)</td><td>​ ​</td><td>Total</td></tr><tr><td>Balance at DecemberΒ 31, 2021</td><td></td><td>82,336</td><td>​ ​</td><td>$</td><td>722,310</td><td>​ ​</td><td>$</td><td>2,163,916</td><td></td><td>( 31,956 )</td><td>​ ​</td><td>$</td><td>( 618,712 )</td><td>​ ​</td><td>$</td><td>β€”</td><td>​ ​</td><td>$</td><td>2,267,514</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>151</td><td>​ ​</td><td>​ ​</td><td>142</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>142</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 38 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>106</td><td>​ ​</td><td>​ ​</td><td>2,815</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,815</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 1,224</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 3,802 )</td><td>​ ​</td><td></td><td>( 3,802 )</td></tr><tr><td>Balance at DecemberΒ 31, 2022</td><td></td><td>82,593</td><td>​ ​</td><td>$</td><td>734,426</td><td>​ ​</td><td>$</td><td>2,236,869</td><td></td><td>( 31,994 )</td><td>​ ​</td><td>$</td><td>( 619,862 )</td><td>​ ​</td><td>$</td><td>( 3,802 )</td><td>​ ​</td><td>$</td><td>2,347,631</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>130</td><td>​ ​</td><td>​ ​</td><td>57</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>57</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 32 )</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>117</td><td>​ ​</td><td>​ ​</td><td>2,754</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,754</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td></tr><tr><td>Treasury stock purchases and related excise tax</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 10,589 )</td><td>​ ​</td><td></td><td>( 291,949 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 291,949 )</td></tr><tr><td>Net unrealized appreciation on marketable securities, net of tax of $ 1,329</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>4,127</td><td>​ ​</td><td></td><td>4,127</td></tr><tr><td>Balance at DecemberΒ 31, 2023</td><td></td><td>82,840</td><td>​ ​</td><td>$</td><td>754,362</td><td>​ ​</td><td>$</td><td>2,271,211</td><td></td><td>( 42,615 )</td><td>​ ​</td><td>$</td><td>( 912,396 )</td><td>​ ​</td><td>$</td><td>325</td><td>​ ​</td><td>$</td><td>2,113,502</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td></tr><tr><td>Vested employee stock awards</td><td></td><td>270</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 117 )</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>48</td><td>​ ​</td><td>​ ​</td><td>2,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,864</td></tr><tr><td>Issuance of common stock upon warrant exercise, net</td><td>​ ​</td><td>481</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td></tr><tr><td>Treasury stock purchases</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 578 )</td><td>​ ​</td><td></td><td>( 43,324 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>( 43,324 )</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 51</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td></tr><tr><td>Balance at DecemberΒ 31, 2024</td><td></td><td>83,639</td><td>​ ​</td><td>$</td><td>777,090</td><td>​ ​</td><td>$</td><td>2,594,173</td><td></td><td>( 43,310 )</td><td>​ ​</td><td>$</td><td>( 962,650 )</td><td>​ ​</td><td>$</td><td>168</td><td>​ ​</td><td>$</td><td>2,408,781</td></tr></table>
table
2113502
monetaryItemType
table: <entity> 2113502 </entity> <entity type> monetaryItemType </entity type> <context> Balance at DecemberΒ 31, 2023 | 82,840 | ​ ​ | $ | 754,362 | ​ ​ | $ | 2,271,211 | ( 42,615 ) | ​ ​ | $ | ( 912,396 ) | ​ ​ | $ | 325 | ​ ​ | $ | 2,113,502 </context>
us-gaap:StockholdersEquity
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Accumulated</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Other</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>CommonΒ Stock</td><td>​ ​</td><td>Retained</td><td>​ ​</td><td>TreasuryΒ Stock</td><td>​ ​</td><td>Comprehensive</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>Earnings</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>IncomeΒ (Loss)</td><td>​ ​</td><td>Total</td></tr><tr><td>Balance at DecemberΒ 31, 2021</td><td></td><td>82,336</td><td>​ ​</td><td>$</td><td>722,310</td><td>​ ​</td><td>$</td><td>2,163,916</td><td></td><td>( 31,956 )</td><td>​ ​</td><td>$</td><td>( 618,712 )</td><td>​ ​</td><td>$</td><td>β€”</td><td>​ ​</td><td>$</td><td>2,267,514</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>151</td><td>​ ​</td><td>​ ​</td><td>142</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>142</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 38 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>106</td><td>​ ​</td><td>​ ​</td><td>2,815</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,815</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 1,224</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 3,802 )</td><td>​ ​</td><td></td><td>( 3,802 )</td></tr><tr><td>Balance at DecemberΒ 31, 2022</td><td></td><td>82,593</td><td>​ ​</td><td>$</td><td>734,426</td><td>​ ​</td><td>$</td><td>2,236,869</td><td></td><td>( 31,994 )</td><td>​ ​</td><td>$</td><td>( 619,862 )</td><td>​ ​</td><td>$</td><td>( 3,802 )</td><td>​ ​</td><td>$</td><td>2,347,631</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>130</td><td>​ ​</td><td>​ ​</td><td>57</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>57</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 32 )</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>117</td><td>​ ​</td><td>​ ​</td><td>2,754</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,754</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td></tr><tr><td>Treasury stock purchases and related excise tax</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 10,589 )</td><td>​ ​</td><td></td><td>( 291,949 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 291,949 )</td></tr><tr><td>Net unrealized appreciation on marketable securities, net of tax of $ 1,329</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>4,127</td><td>​ ​</td><td></td><td>4,127</td></tr><tr><td>Balance at DecemberΒ 31, 2023</td><td></td><td>82,840</td><td>​ ​</td><td>$</td><td>754,362</td><td>​ ​</td><td>$</td><td>2,271,211</td><td></td><td>( 42,615 )</td><td>​ ​</td><td>$</td><td>( 912,396 )</td><td>​ ​</td><td>$</td><td>325</td><td>​ ​</td><td>$</td><td>2,113,502</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td></tr><tr><td>Vested employee stock awards</td><td></td><td>270</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 117 )</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>48</td><td>​ ​</td><td>​ ​</td><td>2,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,864</td></tr><tr><td>Issuance of common stock upon warrant exercise, net</td><td>​ ​</td><td>481</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td></tr><tr><td>Treasury stock purchases</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 578 )</td><td>​ ​</td><td></td><td>( 43,324 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>( 43,324 )</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 51</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td></tr><tr><td>Balance at DecemberΒ 31, 2024</td><td></td><td>83,639</td><td>​ ​</td><td>$</td><td>777,090</td><td>​ ​</td><td>$</td><td>2,594,173</td><td></td><td>( 43,310 )</td><td>​ ​</td><td>$</td><td>( 962,650 )</td><td>​ ​</td><td>$</td><td>168</td><td>​ ​</td><td>$</td><td>2,408,781</td></tr></table>
table
322962
monetaryItemType
table: <entity> 322962 </entity> <entity type> monetaryItemType </entity type> <context> Net income | β€” | ​ ​ | β€” | ​ ​ | 322,962 | β€” | ​ ​ | β€” | ​ ​ | β€” | ​ ​ | 322,962 </context>
us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Accumulated</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Other</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>CommonΒ Stock</td><td>​ ​</td><td>Retained</td><td>​ ​</td><td>TreasuryΒ Stock</td><td>​ ​</td><td>Comprehensive</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>Earnings</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>IncomeΒ (Loss)</td><td>​ ​</td><td>Total</td></tr><tr><td>Balance at DecemberΒ 31, 2021</td><td></td><td>82,336</td><td>​ ​</td><td>$</td><td>722,310</td><td>​ ​</td><td>$</td><td>2,163,916</td><td></td><td>( 31,956 )</td><td>​ ​</td><td>$</td><td>( 618,712 )</td><td>​ ​</td><td>$</td><td>β€”</td><td>​ ​</td><td>$</td><td>2,267,514</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>151</td><td>​ ​</td><td>​ ​</td><td>142</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>142</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 38 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>106</td><td>​ ​</td><td>​ ​</td><td>2,815</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,815</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 1,224</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 3,802 )</td><td>​ ​</td><td></td><td>( 3,802 )</td></tr><tr><td>Balance at DecemberΒ 31, 2022</td><td></td><td>82,593</td><td>​ ​</td><td>$</td><td>734,426</td><td>​ ​</td><td>$</td><td>2,236,869</td><td></td><td>( 31,994 )</td><td>​ ​</td><td>$</td><td>( 619,862 )</td><td>​ ​</td><td>$</td><td>( 3,802 )</td><td>​ ​</td><td>$</td><td>2,347,631</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>130</td><td>​ ​</td><td>​ ​</td><td>57</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>57</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 32 )</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>117</td><td>​ ​</td><td>​ ​</td><td>2,754</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,754</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td></tr><tr><td>Treasury stock purchases and related excise tax</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 10,589 )</td><td>​ ​</td><td></td><td>( 291,949 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 291,949 )</td></tr><tr><td>Net unrealized appreciation on marketable securities, net of tax of $ 1,329</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>4,127</td><td>​ ​</td><td></td><td>4,127</td></tr><tr><td>Balance at DecemberΒ 31, 2023</td><td></td><td>82,840</td><td>​ ​</td><td>$</td><td>754,362</td><td>​ ​</td><td>$</td><td>2,271,211</td><td></td><td>( 42,615 )</td><td>​ ​</td><td>$</td><td>( 912,396 )</td><td>​ ​</td><td>$</td><td>325</td><td>​ ​</td><td>$</td><td>2,113,502</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td></tr><tr><td>Vested employee stock awards</td><td></td><td>270</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 117 )</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>48</td><td>​ ​</td><td>​ ​</td><td>2,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,864</td></tr><tr><td>Issuance of common stock upon warrant exercise, net</td><td>​ ​</td><td>481</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td></tr><tr><td>Treasury stock purchases</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 578 )</td><td>​ ​</td><td></td><td>( 43,324 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>( 43,324 )</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 51</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td></tr><tr><td>Balance at DecemberΒ 31, 2024</td><td></td><td>83,639</td><td>​ ​</td><td>$</td><td>777,090</td><td>​ ​</td><td>$</td><td>2,594,173</td><td></td><td>( 43,310 )</td><td>​ ​</td><td>$</td><td>( 962,650 )</td><td>​ ​</td><td>$</td><td>168</td><td>​ ​</td><td>$</td><td>2,408,781</td></tr></table>
table
270
sharesItemType
table: <entity> 270 </entity> <entity type> sharesItemType </entity type> <context> Vested employee stock awards | 270 | ​ ​ | ​ ​ | β€” | ​ ​ | β€” | β€” | ​ ​ | β€” | ​ ​ | β€” | ​ ​ | β€” </context>
us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Accumulated</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Other</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>CommonΒ Stock</td><td>​ ​</td><td>Retained</td><td>​ ​</td><td>TreasuryΒ Stock</td><td>​ ​</td><td>Comprehensive</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>Earnings</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>IncomeΒ (Loss)</td><td>​ ​</td><td>Total</td></tr><tr><td>Balance at DecemberΒ 31, 2021</td><td></td><td>82,336</td><td>​ ​</td><td>$</td><td>722,310</td><td>​ ​</td><td>$</td><td>2,163,916</td><td></td><td>( 31,956 )</td><td>​ ​</td><td>$</td><td>( 618,712 )</td><td>​ ​</td><td>$</td><td>β€”</td><td>​ ​</td><td>$</td><td>2,267,514</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>151</td><td>​ ​</td><td>​ ​</td><td>142</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>142</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 38 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>106</td><td>​ ​</td><td>​ ​</td><td>2,815</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,815</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 1,224</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 3,802 )</td><td>​ ​</td><td></td><td>( 3,802 )</td></tr><tr><td>Balance at DecemberΒ 31, 2022</td><td></td><td>82,593</td><td>​ ​</td><td>$</td><td>734,426</td><td>​ ​</td><td>$</td><td>2,236,869</td><td></td><td>( 31,994 )</td><td>​ ​</td><td>$</td><td>( 619,862 )</td><td>​ ​</td><td>$</td><td>( 3,802 )</td><td>​ ​</td><td>$</td><td>2,347,631</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>130</td><td>​ ​</td><td>​ ​</td><td>57</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>57</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 32 )</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>117</td><td>​ ​</td><td>​ ​</td><td>2,754</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,754</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td></tr><tr><td>Treasury stock purchases and related excise tax</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 10,589 )</td><td>​ ​</td><td></td><td>( 291,949 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 291,949 )</td></tr><tr><td>Net unrealized appreciation on marketable securities, net of tax of $ 1,329</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>4,127</td><td>​ ​</td><td></td><td>4,127</td></tr><tr><td>Balance at DecemberΒ 31, 2023</td><td></td><td>82,840</td><td>​ ​</td><td>$</td><td>754,362</td><td>​ ​</td><td>$</td><td>2,271,211</td><td></td><td>( 42,615 )</td><td>​ ​</td><td>$</td><td>( 912,396 )</td><td>​ ​</td><td>$</td><td>325</td><td>​ ​</td><td>$</td><td>2,113,502</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td></tr><tr><td>Vested employee stock awards</td><td></td><td>270</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 117 )</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>48</td><td>​ ​</td><td>​ ​</td><td>2,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,864</td></tr><tr><td>Issuance of common stock upon warrant exercise, net</td><td>​ ​</td><td>481</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td></tr><tr><td>Treasury stock purchases</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 578 )</td><td>​ ​</td><td></td><td>( 43,324 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>( 43,324 )</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 51</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td></tr><tr><td>Balance at DecemberΒ 31, 2024</td><td></td><td>83,639</td><td>​ ​</td><td>$</td><td>777,090</td><td>​ ​</td><td>$</td><td>2,594,173</td><td></td><td>( 43,310 )</td><td>​ ​</td><td>$</td><td>( 962,650 )</td><td>​ ​</td><td>$</td><td>168</td><td>​ ​</td><td>$</td><td>2,408,781</td></tr></table>
table
117
sharesItemType
table: <entity> 117 </entity> <entity type> sharesItemType </entity type> <context> Sale of common stock under employee stock purchase plan | 117 | ​ ​ | ​ ​ | 2,754 | ​ ​ | β€” | β€” | ​ ​ | β€” | ​ ​ | β€” | ​ ​ | 2,754 </context>
us-gaap:SharesPaidForTaxWithholdingForShareBasedCompensation
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Accumulated</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Other</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>CommonΒ Stock</td><td>​ ​</td><td>Retained</td><td>​ ​</td><td>TreasuryΒ Stock</td><td>​ ​</td><td>Comprehensive</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>Earnings</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>IncomeΒ (Loss)</td><td>​ ​</td><td>Total</td></tr><tr><td>Balance at DecemberΒ 31, 2021</td><td></td><td>82,336</td><td>​ ​</td><td>$</td><td>722,310</td><td>​ ​</td><td>$</td><td>2,163,916</td><td></td><td>( 31,956 )</td><td>​ ​</td><td>$</td><td>( 618,712 )</td><td>​ ​</td><td>$</td><td>β€”</td><td>​ ​</td><td>$</td><td>2,267,514</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>151</td><td>​ ​</td><td>​ ​</td><td>142</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>142</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 38 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>106</td><td>​ ​</td><td>​ ​</td><td>2,815</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,815</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 1,224</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 3,802 )</td><td>​ ​</td><td></td><td>( 3,802 )</td></tr><tr><td>Balance at DecemberΒ 31, 2022</td><td></td><td>82,593</td><td>​ ​</td><td>$</td><td>734,426</td><td>​ ​</td><td>$</td><td>2,236,869</td><td></td><td>( 31,994 )</td><td>​ ​</td><td>$</td><td>( 619,862 )</td><td>​ ​</td><td>$</td><td>( 3,802 )</td><td>​ ​</td><td>$</td><td>2,347,631</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>130</td><td>​ ​</td><td>​ ​</td><td>57</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>57</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 32 )</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>117</td><td>​ ​</td><td>​ ​</td><td>2,754</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,754</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td></tr><tr><td>Treasury stock purchases and related excise tax</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 10,589 )</td><td>​ ​</td><td></td><td>( 291,949 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 291,949 )</td></tr><tr><td>Net unrealized appreciation on marketable securities, net of tax of $ 1,329</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>4,127</td><td>​ ​</td><td></td><td>4,127</td></tr><tr><td>Balance at DecemberΒ 31, 2023</td><td></td><td>82,840</td><td>​ ​</td><td>$</td><td>754,362</td><td>​ ​</td><td>$</td><td>2,271,211</td><td></td><td>( 42,615 )</td><td>​ ​</td><td>$</td><td>( 912,396 )</td><td>​ ​</td><td>$</td><td>325</td><td>​ ​</td><td>$</td><td>2,113,502</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td></tr><tr><td>Vested employee stock awards</td><td></td><td>270</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 117 )</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>48</td><td>​ ​</td><td>​ ​</td><td>2,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,864</td></tr><tr><td>Issuance of common stock upon warrant exercise, net</td><td>​ ​</td><td>481</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td></tr><tr><td>Treasury stock purchases</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 578 )</td><td>​ ​</td><td></td><td>( 43,324 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>( 43,324 )</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 51</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td></tr><tr><td>Balance at DecemberΒ 31, 2024</td><td></td><td>83,639</td><td>​ ​</td><td>$</td><td>777,090</td><td>​ ​</td><td>$</td><td>2,594,173</td><td></td><td>( 43,310 )</td><td>​ ​</td><td>$</td><td>( 962,650 )</td><td>​ ​</td><td>$</td><td>168</td><td>​ ​</td><td>$</td><td>2,408,781</td></tr></table>
table
48
sharesItemType
table: <entity> 48 </entity> <entity type> sharesItemType </entity type> <context> Sale of common stock under employee stock purchase plan | 48 | ​ ​ | ​ ​ | 2,864 | ​ ​ | β€” | β€” | ​ ​ | β€” | ​ ​ | β€” | ​ ​ | 2,864 </context>
us-gaap:StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Accumulated</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Other</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>CommonΒ Stock</td><td>​ ​</td><td>Retained</td><td>​ ​</td><td>TreasuryΒ Stock</td><td>​ ​</td><td>Comprehensive</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>Earnings</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>IncomeΒ (Loss)</td><td>​ ​</td><td>Total</td></tr><tr><td>Balance at DecemberΒ 31, 2021</td><td></td><td>82,336</td><td>​ ​</td><td>$</td><td>722,310</td><td>​ ​</td><td>$</td><td>2,163,916</td><td></td><td>( 31,956 )</td><td>​ ​</td><td>$</td><td>( 618,712 )</td><td>​ ​</td><td>$</td><td>β€”</td><td>​ ​</td><td>$</td><td>2,267,514</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>151</td><td>​ ​</td><td>​ ​</td><td>142</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>142</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 38 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>106</td><td>​ ​</td><td>​ ​</td><td>2,815</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,815</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 1,224</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 3,802 )</td><td>​ ​</td><td></td><td>( 3,802 )</td></tr><tr><td>Balance at DecemberΒ 31, 2022</td><td></td><td>82,593</td><td>​ ​</td><td>$</td><td>734,426</td><td>​ ​</td><td>$</td><td>2,236,869</td><td></td><td>( 31,994 )</td><td>​ ​</td><td>$</td><td>( 619,862 )</td><td>​ ​</td><td>$</td><td>( 3,802 )</td><td>​ ​</td><td>$</td><td>2,347,631</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>130</td><td>​ ​</td><td>​ ​</td><td>57</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>57</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 32 )</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>117</td><td>​ ​</td><td>​ ​</td><td>2,754</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,754</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td></tr><tr><td>Treasury stock purchases and related excise tax</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 10,589 )</td><td>​ ​</td><td></td><td>( 291,949 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 291,949 )</td></tr><tr><td>Net unrealized appreciation on marketable securities, net of tax of $ 1,329</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>4,127</td><td>​ ​</td><td></td><td>4,127</td></tr><tr><td>Balance at DecemberΒ 31, 2023</td><td></td><td>82,840</td><td>​ ​</td><td>$</td><td>754,362</td><td>​ ​</td><td>$</td><td>2,271,211</td><td></td><td>( 42,615 )</td><td>​ ​</td><td>$</td><td>( 912,396 )</td><td>​ ​</td><td>$</td><td>325</td><td>​ ​</td><td>$</td><td>2,113,502</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td></tr><tr><td>Vested employee stock awards</td><td></td><td>270</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 117 )</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>48</td><td>​ ​</td><td>​ ​</td><td>2,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,864</td></tr><tr><td>Issuance of common stock upon warrant exercise, net</td><td>​ ​</td><td>481</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td></tr><tr><td>Treasury stock purchases</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 578 )</td><td>​ ​</td><td></td><td>( 43,324 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>( 43,324 )</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 51</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td></tr><tr><td>Balance at DecemberΒ 31, 2024</td><td></td><td>83,639</td><td>​ ​</td><td>$</td><td>777,090</td><td>​ ​</td><td>$</td><td>2,594,173</td><td></td><td>( 43,310 )</td><td>​ ​</td><td>$</td><td>( 962,650 )</td><td>​ ​</td><td>$</td><td>168</td><td>​ ​</td><td>$</td><td>2,408,781</td></tr></table>
table
2864
monetaryItemType
table: <entity> 2864 </entity> <entity type> monetaryItemType </entity type> <context> Sale of common stock under employee stock purchase plan | 48 | ​ ​ | ​ ​ | 2,864 | ​ ​ | β€” | β€” | ​ ​ | β€” | ​ ​ | β€” | ​ ​ | 2,864 </context>
us-gaap:StockIssuedDuringPeriodValueEmployeeStockPurchasePlan
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Accumulated</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Other</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>CommonΒ Stock</td><td>​ ​</td><td>Retained</td><td>​ ​</td><td>TreasuryΒ Stock</td><td>​ ​</td><td>Comprehensive</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>Earnings</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>IncomeΒ (Loss)</td><td>​ ​</td><td>Total</td></tr><tr><td>Balance at DecemberΒ 31, 2021</td><td></td><td>82,336</td><td>​ ​</td><td>$</td><td>722,310</td><td>​ ​</td><td>$</td><td>2,163,916</td><td></td><td>( 31,956 )</td><td>​ ​</td><td>$</td><td>( 618,712 )</td><td>​ ​</td><td>$</td><td>β€”</td><td>​ ​</td><td>$</td><td>2,267,514</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>151</td><td>​ ​</td><td>​ ​</td><td>142</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>142</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 38 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>106</td><td>​ ​</td><td>​ ​</td><td>2,815</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,815</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 1,224</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 3,802 )</td><td>​ ​</td><td></td><td>( 3,802 )</td></tr><tr><td>Balance at DecemberΒ 31, 2022</td><td></td><td>82,593</td><td>​ ​</td><td>$</td><td>734,426</td><td>​ ​</td><td>$</td><td>2,236,869</td><td></td><td>( 31,994 )</td><td>​ ​</td><td>$</td><td>( 619,862 )</td><td>​ ​</td><td>$</td><td>( 3,802 )</td><td>​ ​</td><td>$</td><td>2,347,631</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>130</td><td>​ ​</td><td>​ ​</td><td>57</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>57</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 32 )</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>117</td><td>​ ​</td><td>​ ​</td><td>2,754</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,754</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td></tr><tr><td>Treasury stock purchases and related excise tax</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 10,589 )</td><td>​ ​</td><td></td><td>( 291,949 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 291,949 )</td></tr><tr><td>Net unrealized appreciation on marketable securities, net of tax of $ 1,329</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>4,127</td><td>​ ​</td><td></td><td>4,127</td></tr><tr><td>Balance at DecemberΒ 31, 2023</td><td></td><td>82,840</td><td>​ ​</td><td>$</td><td>754,362</td><td>​ ​</td><td>$</td><td>2,271,211</td><td></td><td>( 42,615 )</td><td>​ ​</td><td>$</td><td>( 912,396 )</td><td>​ ​</td><td>$</td><td>325</td><td>​ ​</td><td>$</td><td>2,113,502</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td></tr><tr><td>Vested employee stock awards</td><td></td><td>270</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 117 )</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>48</td><td>​ ​</td><td>​ ​</td><td>2,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,864</td></tr><tr><td>Issuance of common stock upon warrant exercise, net</td><td>​ ​</td><td>481</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td></tr><tr><td>Treasury stock purchases</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 578 )</td><td>​ ​</td><td></td><td>( 43,324 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>( 43,324 )</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 51</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td></tr><tr><td>Balance at DecemberΒ 31, 2024</td><td></td><td>83,639</td><td>​ ​</td><td>$</td><td>777,090</td><td>​ ​</td><td>$</td><td>2,594,173</td><td></td><td>( 43,310 )</td><td>​ ​</td><td>$</td><td>( 962,650 )</td><td>​ ​</td><td>$</td><td>168</td><td>​ ​</td><td>$</td><td>2,408,781</td></tr></table>
table
19864
monetaryItemType
table: <entity> 19864 </entity> <entity type> monetaryItemType </entity type> <context> Stock based compensation expense | β€” | ​ ​ | 19,864 | ​ ​ | β€” | β€” | ​ ​ | β€” | ​ ​ | β€” | ​ ​ | 19,864 </context>
us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Accumulated</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Other</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>CommonΒ Stock</td><td>​ ​</td><td>Retained</td><td>​ ​</td><td>TreasuryΒ Stock</td><td>​ ​</td><td>Comprehensive</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>Earnings</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>IncomeΒ (Loss)</td><td>​ ​</td><td>Total</td></tr><tr><td>Balance at DecemberΒ 31, 2021</td><td></td><td>82,336</td><td>​ ​</td><td>$</td><td>722,310</td><td>​ ​</td><td>$</td><td>2,163,916</td><td></td><td>( 31,956 )</td><td>​ ​</td><td>$</td><td>( 618,712 )</td><td>​ ​</td><td>$</td><td>β€”</td><td>​ ​</td><td>$</td><td>2,267,514</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>151</td><td>​ ​</td><td>​ ​</td><td>142</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>142</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 38 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>106</td><td>​ ​</td><td>​ ​</td><td>2,815</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,815</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 1,224</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 3,802 )</td><td>​ ​</td><td></td><td>( 3,802 )</td></tr><tr><td>Balance at DecemberΒ 31, 2022</td><td></td><td>82,593</td><td>​ ​</td><td>$</td><td>734,426</td><td>​ ​</td><td>$</td><td>2,236,869</td><td></td><td>( 31,994 )</td><td>​ ​</td><td>$</td><td>( 619,862 )</td><td>​ ​</td><td>$</td><td>( 3,802 )</td><td>​ ​</td><td>$</td><td>2,347,631</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>130</td><td>​ ​</td><td>​ ​</td><td>57</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>57</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 32 )</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>117</td><td>​ ​</td><td>​ ​</td><td>2,754</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,754</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td></tr><tr><td>Treasury stock purchases and related excise tax</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 10,589 )</td><td>​ ​</td><td></td><td>( 291,949 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 291,949 )</td></tr><tr><td>Net unrealized appreciation on marketable securities, net of tax of $ 1,329</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>4,127</td><td>​ ​</td><td></td><td>4,127</td></tr><tr><td>Balance at DecemberΒ 31, 2023</td><td></td><td>82,840</td><td>​ ​</td><td>$</td><td>754,362</td><td>​ ​</td><td>$</td><td>2,271,211</td><td></td><td>( 42,615 )</td><td>​ ​</td><td>$</td><td>( 912,396 )</td><td>​ ​</td><td>$</td><td>325</td><td>​ ​</td><td>$</td><td>2,113,502</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td></tr><tr><td>Vested employee stock awards</td><td></td><td>270</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 117 )</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>48</td><td>​ ​</td><td>​ ​</td><td>2,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,864</td></tr><tr><td>Issuance of common stock upon warrant exercise, net</td><td>​ ​</td><td>481</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td></tr><tr><td>Treasury stock purchases</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 578 )</td><td>​ ​</td><td></td><td>( 43,324 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>( 43,324 )</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 51</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td></tr><tr><td>Balance at DecemberΒ 31, 2024</td><td></td><td>83,639</td><td>​ ​</td><td>$</td><td>777,090</td><td>​ ​</td><td>$</td><td>2,594,173</td><td></td><td>( 43,310 )</td><td>​ ​</td><td>$</td><td>( 962,650 )</td><td>​ ​</td><td>$</td><td>168</td><td>​ ​</td><td>$</td><td>2,408,781</td></tr></table>
table
578
sharesItemType
table: <entity> 578 </entity> <entity type> sharesItemType </entity type> <context> None </context>
us-gaap:TreasuryStockSharesRetired
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Accumulated</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Other</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>CommonΒ Stock</td><td>​ ​</td><td>Retained</td><td>​ ​</td><td>TreasuryΒ Stock</td><td>​ ​</td><td>Comprehensive</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>Earnings</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>IncomeΒ (Loss)</td><td>​ ​</td><td>Total</td></tr><tr><td>Balance at DecemberΒ 31, 2021</td><td></td><td>82,336</td><td>​ ​</td><td>$</td><td>722,310</td><td>​ ​</td><td>$</td><td>2,163,916</td><td></td><td>( 31,956 )</td><td>​ ​</td><td>$</td><td>( 618,712 )</td><td>​ ​</td><td>$</td><td>β€”</td><td>​ ​</td><td>$</td><td>2,267,514</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>151</td><td>​ ​</td><td>​ ​</td><td>142</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>142</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 38 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>106</td><td>​ ​</td><td>​ ​</td><td>2,815</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,815</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 1,224</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 3,802 )</td><td>​ ​</td><td></td><td>( 3,802 )</td></tr><tr><td>Balance at DecemberΒ 31, 2022</td><td></td><td>82,593</td><td>​ ​</td><td>$</td><td>734,426</td><td>​ ​</td><td>$</td><td>2,236,869</td><td></td><td>( 31,994 )</td><td>​ ​</td><td>$</td><td>( 619,862 )</td><td>​ ​</td><td>$</td><td>( 3,802 )</td><td>​ ​</td><td>$</td><td>2,347,631</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>130</td><td>​ ​</td><td>​ ​</td><td>57</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>57</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 32 )</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>117</td><td>​ ​</td><td>​ ​</td><td>2,754</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,754</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td></tr><tr><td>Treasury stock purchases and related excise tax</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 10,589 )</td><td>​ ​</td><td></td><td>( 291,949 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 291,949 )</td></tr><tr><td>Net unrealized appreciation on marketable securities, net of tax of $ 1,329</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>4,127</td><td>​ ​</td><td></td><td>4,127</td></tr><tr><td>Balance at DecemberΒ 31, 2023</td><td></td><td>82,840</td><td>​ ​</td><td>$</td><td>754,362</td><td>​ ​</td><td>$</td><td>2,271,211</td><td></td><td>( 42,615 )</td><td>​ ​</td><td>$</td><td>( 912,396 )</td><td>​ ​</td><td>$</td><td>325</td><td>​ ​</td><td>$</td><td>2,113,502</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td></tr><tr><td>Vested employee stock awards</td><td></td><td>270</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 117 )</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>48</td><td>​ ​</td><td>​ ​</td><td>2,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,864</td></tr><tr><td>Issuance of common stock upon warrant exercise, net</td><td>​ ​</td><td>481</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td></tr><tr><td>Treasury stock purchases</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 578 )</td><td>​ ​</td><td></td><td>( 43,324 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>( 43,324 )</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 51</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td></tr><tr><td>Balance at DecemberΒ 31, 2024</td><td></td><td>83,639</td><td>​ ​</td><td>$</td><td>777,090</td><td>​ ​</td><td>$</td><td>2,594,173</td><td></td><td>( 43,310 )</td><td>​ ​</td><td>$</td><td>( 962,650 )</td><td>​ ​</td><td>$</td><td>168</td><td>​ ​</td><td>$</td><td>2,408,781</td></tr></table>
table
43324
monetaryItemType
table: <entity> 43324 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:TreasuryStockRetiredCostMethodAmount
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Accumulated</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Other</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>CommonΒ Stock</td><td>​ ​</td><td>Retained</td><td>​ ​</td><td>TreasuryΒ Stock</td><td>​ ​</td><td>Comprehensive</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>Earnings</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>IncomeΒ (Loss)</td><td>​ ​</td><td>Total</td></tr><tr><td>Balance at DecemberΒ 31, 2021</td><td></td><td>82,336</td><td>​ ​</td><td>$</td><td>722,310</td><td>​ ​</td><td>$</td><td>2,163,916</td><td></td><td>( 31,956 )</td><td>​ ​</td><td>$</td><td>( 618,712 )</td><td>​ ​</td><td>$</td><td>β€”</td><td>​ ​</td><td>$</td><td>2,267,514</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>151</td><td>​ ​</td><td>​ ​</td><td>142</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>142</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 38 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>106</td><td>​ ​</td><td>​ ​</td><td>2,815</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,815</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 1,224</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 3,802 )</td><td>​ ​</td><td></td><td>( 3,802 )</td></tr><tr><td>Balance at DecemberΒ 31, 2022</td><td></td><td>82,593</td><td>​ ​</td><td>$</td><td>734,426</td><td>​ ​</td><td>$</td><td>2,236,869</td><td></td><td>( 31,994 )</td><td>​ ​</td><td>$</td><td>( 619,862 )</td><td>​ ​</td><td>$</td><td>( 3,802 )</td><td>​ ​</td><td>$</td><td>2,347,631</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>130</td><td>​ ​</td><td>​ ​</td><td>57</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>57</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 32 )</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>117</td><td>​ ​</td><td>​ ​</td><td>2,754</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,754</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td></tr><tr><td>Treasury stock purchases and related excise tax</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 10,589 )</td><td>​ ​</td><td></td><td>( 291,949 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 291,949 )</td></tr><tr><td>Net unrealized appreciation on marketable securities, net of tax of $ 1,329</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>4,127</td><td>​ ​</td><td></td><td>4,127</td></tr><tr><td>Balance at DecemberΒ 31, 2023</td><td></td><td>82,840</td><td>​ ​</td><td>$</td><td>754,362</td><td>​ ​</td><td>$</td><td>2,271,211</td><td></td><td>( 42,615 )</td><td>​ ​</td><td>$</td><td>( 912,396 )</td><td>​ ​</td><td>$</td><td>325</td><td>​ ​</td><td>$</td><td>2,113,502</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td></tr><tr><td>Vested employee stock awards</td><td></td><td>270</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 117 )</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>48</td><td>​ ​</td><td>​ ​</td><td>2,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,864</td></tr><tr><td>Issuance of common stock upon warrant exercise, net</td><td>​ ​</td><td>481</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td></tr><tr><td>Treasury stock purchases</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 578 )</td><td>​ ​</td><td></td><td>( 43,324 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>( 43,324 )</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 51</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td></tr><tr><td>Balance at DecemberΒ 31, 2024</td><td></td><td>83,639</td><td>​ ​</td><td>$</td><td>777,090</td><td>​ ​</td><td>$</td><td>2,594,173</td><td></td><td>( 43,310 )</td><td>​ ​</td><td>$</td><td>( 962,650 )</td><td>​ ​</td><td>$</td><td>168</td><td>​ ​</td><td>$</td><td>2,408,781</td></tr></table>
table
51
monetaryItemType
table: <entity> 51 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Accumulated</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Other</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>CommonΒ Stock</td><td>​ ​</td><td>Retained</td><td>​ ​</td><td>TreasuryΒ Stock</td><td>​ ​</td><td>Comprehensive</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>Earnings</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>IncomeΒ (Loss)</td><td>​ ​</td><td>Total</td></tr><tr><td>Balance at DecemberΒ 31, 2021</td><td></td><td>82,336</td><td>​ ​</td><td>$</td><td>722,310</td><td>​ ​</td><td>$</td><td>2,163,916</td><td></td><td>( 31,956 )</td><td>​ ​</td><td>$</td><td>( 618,712 )</td><td>​ ​</td><td>$</td><td>β€”</td><td>​ ​</td><td>$</td><td>2,267,514</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>151</td><td>​ ​</td><td>​ ​</td><td>142</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>142</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 38 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>106</td><td>​ ​</td><td>​ ​</td><td>2,815</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,815</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 1,224</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 3,802 )</td><td>​ ​</td><td></td><td>( 3,802 )</td></tr><tr><td>Balance at DecemberΒ 31, 2022</td><td></td><td>82,593</td><td>​ ​</td><td>$</td><td>734,426</td><td>​ ​</td><td>$</td><td>2,236,869</td><td></td><td>( 31,994 )</td><td>​ ​</td><td>$</td><td>( 619,862 )</td><td>​ ​</td><td>$</td><td>( 3,802 )</td><td>​ ​</td><td>$</td><td>2,347,631</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>130</td><td>​ ​</td><td>​ ​</td><td>57</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>57</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 32 )</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>117</td><td>​ ​</td><td>​ ​</td><td>2,754</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,754</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td></tr><tr><td>Treasury stock purchases and related excise tax</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 10,589 )</td><td>​ ​</td><td></td><td>( 291,949 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 291,949 )</td></tr><tr><td>Net unrealized appreciation on marketable securities, net of tax of $ 1,329</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>4,127</td><td>​ ​</td><td></td><td>4,127</td></tr><tr><td>Balance at DecemberΒ 31, 2023</td><td></td><td>82,840</td><td>​ ​</td><td>$</td><td>754,362</td><td>​ ​</td><td>$</td><td>2,271,211</td><td></td><td>( 42,615 )</td><td>​ ​</td><td>$</td><td>( 912,396 )</td><td>​ ​</td><td>$</td><td>325</td><td>​ ​</td><td>$</td><td>2,113,502</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td></tr><tr><td>Vested employee stock awards</td><td></td><td>270</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 117 )</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>48</td><td>​ ​</td><td>​ ​</td><td>2,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,864</td></tr><tr><td>Issuance of common stock upon warrant exercise, net</td><td>​ ​</td><td>481</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td></tr><tr><td>Treasury stock purchases</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 578 )</td><td>​ ​</td><td></td><td>( 43,324 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>( 43,324 )</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 51</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td></tr><tr><td>Balance at DecemberΒ 31, 2024</td><td></td><td>83,639</td><td>​ ​</td><td>$</td><td>777,090</td><td>​ ​</td><td>$</td><td>2,594,173</td><td></td><td>( 43,310 )</td><td>​ ​</td><td>$</td><td>( 962,650 )</td><td>​ ​</td><td>$</td><td>168</td><td>​ ​</td><td>$</td><td>2,408,781</td></tr></table>
table
157
monetaryItemType
table: <entity> 157 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Accumulated</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Other</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>CommonΒ Stock</td><td>​ ​</td><td>Retained</td><td>​ ​</td><td>TreasuryΒ Stock</td><td>​ ​</td><td>Comprehensive</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>Earnings</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>IncomeΒ (Loss)</td><td>​ ​</td><td>Total</td></tr><tr><td>Balance at DecemberΒ 31, 2021</td><td></td><td>82,336</td><td>​ ​</td><td>$</td><td>722,310</td><td>​ ​</td><td>$</td><td>2,163,916</td><td></td><td>( 31,956 )</td><td>​ ​</td><td>$</td><td>( 618,712 )</td><td>​ ​</td><td>$</td><td>β€”</td><td>​ ​</td><td>$</td><td>2,267,514</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>151</td><td>​ ​</td><td>​ ​</td><td>142</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>142</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 38 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>106</td><td>​ ​</td><td>​ ​</td><td>2,815</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,815</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 1,224</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 3,802 )</td><td>​ ​</td><td></td><td>( 3,802 )</td></tr><tr><td>Balance at DecemberΒ 31, 2022</td><td></td><td>82,593</td><td>​ ​</td><td>$</td><td>734,426</td><td>​ ​</td><td>$</td><td>2,236,869</td><td></td><td>( 31,994 )</td><td>​ ​</td><td>$</td><td>( 619,862 )</td><td>​ ​</td><td>$</td><td>( 3,802 )</td><td>​ ​</td><td>$</td><td>2,347,631</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>130</td><td>​ ​</td><td>​ ​</td><td>57</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>57</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 32 )</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>117</td><td>​ ​</td><td>​ ​</td><td>2,754</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,754</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td></tr><tr><td>Treasury stock purchases and related excise tax</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 10,589 )</td><td>​ ​</td><td></td><td>( 291,949 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 291,949 )</td></tr><tr><td>Net unrealized appreciation on marketable securities, net of tax of $ 1,329</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>4,127</td><td>​ ​</td><td></td><td>4,127</td></tr><tr><td>Balance at DecemberΒ 31, 2023</td><td></td><td>82,840</td><td>​ ​</td><td>$</td><td>754,362</td><td>​ ​</td><td>$</td><td>2,271,211</td><td></td><td>( 42,615 )</td><td>​ ​</td><td>$</td><td>( 912,396 )</td><td>​ ​</td><td>$</td><td>325</td><td>​ ​</td><td>$</td><td>2,113,502</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td></tr><tr><td>Vested employee stock awards</td><td></td><td>270</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 117 )</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>48</td><td>​ ​</td><td>​ ​</td><td>2,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,864</td></tr><tr><td>Issuance of common stock upon warrant exercise, net</td><td>​ ​</td><td>481</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td></tr><tr><td>Treasury stock purchases</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 578 )</td><td>​ ​</td><td></td><td>( 43,324 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>( 43,324 )</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 51</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td></tr><tr><td>Balance at DecemberΒ 31, 2024</td><td></td><td>83,639</td><td>​ ​</td><td>$</td><td>777,090</td><td>​ ​</td><td>$</td><td>2,594,173</td><td></td><td>( 43,310 )</td><td>​ ​</td><td>$</td><td>( 962,650 )</td><td>​ ​</td><td>$</td><td>168</td><td>​ ​</td><td>$</td><td>2,408,781</td></tr></table>
table
83639
sharesItemType
table: <entity> 83639 </entity> <entity type> sharesItemType </entity type> <context> Balance at DecemberΒ 31, 2024 | 83,639 | ​ ​ | $ | 777,090 | ​ ​ | $ | 2,594,173 | ( 43,310 ) | ​ ​ | $ | ( 962,650 ) | ​ ​ | $ | 168 | ​ ​ | $ | 2,408,781 </context>
us-gaap:CommonStockSharesOutstanding
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Accumulated</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Other</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>CommonΒ Stock</td><td>​ ​</td><td>Retained</td><td>​ ​</td><td>TreasuryΒ Stock</td><td>​ ​</td><td>Comprehensive</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>Earnings</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>IncomeΒ (Loss)</td><td>​ ​</td><td>Total</td></tr><tr><td>Balance at DecemberΒ 31, 2021</td><td></td><td>82,336</td><td>​ ​</td><td>$</td><td>722,310</td><td>​ ​</td><td>$</td><td>2,163,916</td><td></td><td>( 31,956 )</td><td>​ ​</td><td>$</td><td>( 618,712 )</td><td>​ ​</td><td>$</td><td>β€”</td><td>​ ​</td><td>$</td><td>2,267,514</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>151</td><td>​ ​</td><td>​ ​</td><td>142</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>142</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 38 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>106</td><td>​ ​</td><td>​ ​</td><td>2,815</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,815</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 1,224</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 3,802 )</td><td>​ ​</td><td></td><td>( 3,802 )</td></tr><tr><td>Balance at DecemberΒ 31, 2022</td><td></td><td>82,593</td><td>​ ​</td><td>$</td><td>734,426</td><td>​ ​</td><td>$</td><td>2,236,869</td><td></td><td>( 31,994 )</td><td>​ ​</td><td>$</td><td>( 619,862 )</td><td>​ ​</td><td>$</td><td>( 3,802 )</td><td>​ ​</td><td>$</td><td>2,347,631</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>130</td><td>​ ​</td><td>​ ​</td><td>57</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>57</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 32 )</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>117</td><td>​ ​</td><td>​ ​</td><td>2,754</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,754</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td></tr><tr><td>Treasury stock purchases and related excise tax</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 10,589 )</td><td>​ ​</td><td></td><td>( 291,949 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 291,949 )</td></tr><tr><td>Net unrealized appreciation on marketable securities, net of tax of $ 1,329</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>4,127</td><td>​ ​</td><td></td><td>4,127</td></tr><tr><td>Balance at DecemberΒ 31, 2023</td><td></td><td>82,840</td><td>​ ​</td><td>$</td><td>754,362</td><td>​ ​</td><td>$</td><td>2,271,211</td><td></td><td>( 42,615 )</td><td>​ ​</td><td>$</td><td>( 912,396 )</td><td>​ ​</td><td>$</td><td>325</td><td>​ ​</td><td>$</td><td>2,113,502</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td></tr><tr><td>Vested employee stock awards</td><td></td><td>270</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 117 )</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>48</td><td>​ ​</td><td>​ ​</td><td>2,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,864</td></tr><tr><td>Issuance of common stock upon warrant exercise, net</td><td>​ ​</td><td>481</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td></tr><tr><td>Treasury stock purchases</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 578 )</td><td>​ ​</td><td></td><td>( 43,324 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>( 43,324 )</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 51</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td></tr><tr><td>Balance at DecemberΒ 31, 2024</td><td></td><td>83,639</td><td>​ ​</td><td>$</td><td>777,090</td><td>​ ​</td><td>$</td><td>2,594,173</td><td></td><td>( 43,310 )</td><td>​ ​</td><td>$</td><td>( 962,650 )</td><td>​ ​</td><td>$</td><td>168</td><td>​ ​</td><td>$</td><td>2,408,781</td></tr></table>
table
777090
monetaryItemType
table: <entity> 777090 </entity> <entity type> monetaryItemType </entity type> <context> Balance at DecemberΒ 31, 2024 | 83,639 | ​ ​ | $ | 777,090 | ​ ​ | $ | 2,594,173 | ( 43,310 ) | ​ ​ | $ | ( 962,650 ) | ​ ​ | $ | 168 | ​ ​ | $ | 2,408,781 </context>
us-gaap:StockholdersEquity
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Accumulated</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Other</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>CommonΒ Stock</td><td>​ ​</td><td>Retained</td><td>​ ​</td><td>TreasuryΒ Stock</td><td>​ ​</td><td>Comprehensive</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>Earnings</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>IncomeΒ (Loss)</td><td>​ ​</td><td>Total</td></tr><tr><td>Balance at DecemberΒ 31, 2021</td><td></td><td>82,336</td><td>​ ​</td><td>$</td><td>722,310</td><td>​ ​</td><td>$</td><td>2,163,916</td><td></td><td>( 31,956 )</td><td>​ ​</td><td>$</td><td>( 618,712 )</td><td>​ ​</td><td>$</td><td>β€”</td><td>​ ​</td><td>$</td><td>2,267,514</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>151</td><td>​ ​</td><td>​ ​</td><td>142</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>142</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 38 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>106</td><td>​ ​</td><td>​ ​</td><td>2,815</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,815</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 1,224</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 3,802 )</td><td>​ ​</td><td></td><td>( 3,802 )</td></tr><tr><td>Balance at DecemberΒ 31, 2022</td><td></td><td>82,593</td><td>​ ​</td><td>$</td><td>734,426</td><td>​ ​</td><td>$</td><td>2,236,869</td><td></td><td>( 31,994 )</td><td>​ ​</td><td>$</td><td>( 619,862 )</td><td>​ ​</td><td>$</td><td>( 3,802 )</td><td>​ ​</td><td>$</td><td>2,347,631</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>130</td><td>​ ​</td><td>​ ​</td><td>57</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>57</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 32 )</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>117</td><td>​ ​</td><td>​ ​</td><td>2,754</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,754</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td></tr><tr><td>Treasury stock purchases and related excise tax</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 10,589 )</td><td>​ ​</td><td></td><td>( 291,949 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 291,949 )</td></tr><tr><td>Net unrealized appreciation on marketable securities, net of tax of $ 1,329</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>4,127</td><td>​ ​</td><td></td><td>4,127</td></tr><tr><td>Balance at DecemberΒ 31, 2023</td><td></td><td>82,840</td><td>​ ​</td><td>$</td><td>754,362</td><td>​ ​</td><td>$</td><td>2,271,211</td><td></td><td>( 42,615 )</td><td>​ ​</td><td>$</td><td>( 912,396 )</td><td>​ ​</td><td>$</td><td>325</td><td>​ ​</td><td>$</td><td>2,113,502</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td></tr><tr><td>Vested employee stock awards</td><td></td><td>270</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 117 )</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>48</td><td>​ ​</td><td>​ ​</td><td>2,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,864</td></tr><tr><td>Issuance of common stock upon warrant exercise, net</td><td>​ ​</td><td>481</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td></tr><tr><td>Treasury stock purchases</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 578 )</td><td>​ ​</td><td></td><td>( 43,324 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>( 43,324 )</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 51</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td></tr><tr><td>Balance at DecemberΒ 31, 2024</td><td></td><td>83,639</td><td>​ ​</td><td>$</td><td>777,090</td><td>​ ​</td><td>$</td><td>2,594,173</td><td></td><td>( 43,310 )</td><td>​ ​</td><td>$</td><td>( 962,650 )</td><td>​ ​</td><td>$</td><td>168</td><td>​ ​</td><td>$</td><td>2,408,781</td></tr></table>
table
2594173
monetaryItemType
table: <entity> 2594173 </entity> <entity type> monetaryItemType </entity type> <context> Balance at DecemberΒ 31, 2024 | 83,639 | ​ ​ | $ | 777,090 | ​ ​ | $ | 2,594,173 | ( 43,310 ) | ​ ​ | $ | ( 962,650 ) | ​ ​ | $ | 168 | ​ ​ | $ | 2,408,781 </context>
us-gaap:StockholdersEquity
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Accumulated</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Other</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>CommonΒ Stock</td><td>​ ​</td><td>Retained</td><td>​ ​</td><td>TreasuryΒ Stock</td><td>​ ​</td><td>Comprehensive</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>Earnings</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>IncomeΒ (Loss)</td><td>​ ​</td><td>Total</td></tr><tr><td>Balance at DecemberΒ 31, 2021</td><td></td><td>82,336</td><td>​ ​</td><td>$</td><td>722,310</td><td>​ ​</td><td>$</td><td>2,163,916</td><td></td><td>( 31,956 )</td><td>​ ​</td><td>$</td><td>( 618,712 )</td><td>​ ​</td><td>$</td><td>β€”</td><td>​ ​</td><td>$</td><td>2,267,514</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>151</td><td>​ ​</td><td>​ ​</td><td>142</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>142</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 38 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>106</td><td>​ ​</td><td>​ ​</td><td>2,815</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,815</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 1,224</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 3,802 )</td><td>​ ​</td><td></td><td>( 3,802 )</td></tr><tr><td>Balance at DecemberΒ 31, 2022</td><td></td><td>82,593</td><td>​ ​</td><td>$</td><td>734,426</td><td>​ ​</td><td>$</td><td>2,236,869</td><td></td><td>( 31,994 )</td><td>​ ​</td><td>$</td><td>( 619,862 )</td><td>​ ​</td><td>$</td><td>( 3,802 )</td><td>​ ​</td><td>$</td><td>2,347,631</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>130</td><td>​ ​</td><td>​ ​</td><td>57</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>57</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 32 )</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>117</td><td>​ ​</td><td>​ ​</td><td>2,754</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,754</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td></tr><tr><td>Treasury stock purchases and related excise tax</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 10,589 )</td><td>​ ​</td><td></td><td>( 291,949 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 291,949 )</td></tr><tr><td>Net unrealized appreciation on marketable securities, net of tax of $ 1,329</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>4,127</td><td>​ ​</td><td></td><td>4,127</td></tr><tr><td>Balance at DecemberΒ 31, 2023</td><td></td><td>82,840</td><td>​ ​</td><td>$</td><td>754,362</td><td>​ ​</td><td>$</td><td>2,271,211</td><td></td><td>( 42,615 )</td><td>​ ​</td><td>$</td><td>( 912,396 )</td><td>​ ​</td><td>$</td><td>325</td><td>​ ​</td><td>$</td><td>2,113,502</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td></tr><tr><td>Vested employee stock awards</td><td></td><td>270</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 117 )</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>48</td><td>​ ​</td><td>​ ​</td><td>2,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,864</td></tr><tr><td>Issuance of common stock upon warrant exercise, net</td><td>​ ​</td><td>481</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td></tr><tr><td>Treasury stock purchases</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 578 )</td><td>​ ​</td><td></td><td>( 43,324 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>( 43,324 )</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 51</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td></tr><tr><td>Balance at DecemberΒ 31, 2024</td><td></td><td>83,639</td><td>​ ​</td><td>$</td><td>777,090</td><td>​ ​</td><td>$</td><td>2,594,173</td><td></td><td>( 43,310 )</td><td>​ ​</td><td>$</td><td>( 962,650 )</td><td>​ ​</td><td>$</td><td>168</td><td>​ ​</td><td>$</td><td>2,408,781</td></tr></table>
table
43310
sharesItemType
table: <entity> 43310 </entity> <entity type> sharesItemType </entity type> <context> None </context>
us-gaap:TreasuryStockCommonShares
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Accumulated</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Other</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>CommonΒ Stock</td><td>​ ​</td><td>Retained</td><td>​ ​</td><td>TreasuryΒ Stock</td><td>​ ​</td><td>Comprehensive</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>Earnings</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>IncomeΒ (Loss)</td><td>​ ​</td><td>Total</td></tr><tr><td>Balance at DecemberΒ 31, 2021</td><td></td><td>82,336</td><td>​ ​</td><td>$</td><td>722,310</td><td>​ ​</td><td>$</td><td>2,163,916</td><td></td><td>( 31,956 )</td><td>​ ​</td><td>$</td><td>( 618,712 )</td><td>​ ​</td><td>$</td><td>β€”</td><td>​ ​</td><td>$</td><td>2,267,514</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>151</td><td>​ ​</td><td>​ ​</td><td>142</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>142</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 38 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>106</td><td>​ ​</td><td>​ ​</td><td>2,815</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,815</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 1,224</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 3,802 )</td><td>​ ​</td><td></td><td>( 3,802 )</td></tr><tr><td>Balance at DecemberΒ 31, 2022</td><td></td><td>82,593</td><td>​ ​</td><td>$</td><td>734,426</td><td>​ ​</td><td>$</td><td>2,236,869</td><td></td><td>( 31,994 )</td><td>​ ​</td><td>$</td><td>( 619,862 )</td><td>​ ​</td><td>$</td><td>( 3,802 )</td><td>​ ​</td><td>$</td><td>2,347,631</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>130</td><td>​ ​</td><td>​ ​</td><td>57</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>57</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 32 )</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>117</td><td>​ ​</td><td>​ ​</td><td>2,754</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,754</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td></tr><tr><td>Treasury stock purchases and related excise tax</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 10,589 )</td><td>​ ​</td><td></td><td>( 291,949 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 291,949 )</td></tr><tr><td>Net unrealized appreciation on marketable securities, net of tax of $ 1,329</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>4,127</td><td>​ ​</td><td></td><td>4,127</td></tr><tr><td>Balance at DecemberΒ 31, 2023</td><td></td><td>82,840</td><td>​ ​</td><td>$</td><td>754,362</td><td>​ ​</td><td>$</td><td>2,271,211</td><td></td><td>( 42,615 )</td><td>​ ​</td><td>$</td><td>( 912,396 )</td><td>​ ​</td><td>$</td><td>325</td><td>​ ​</td><td>$</td><td>2,113,502</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td></tr><tr><td>Vested employee stock awards</td><td></td><td>270</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 117 )</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>48</td><td>​ ​</td><td>​ ​</td><td>2,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,864</td></tr><tr><td>Issuance of common stock upon warrant exercise, net</td><td>​ ​</td><td>481</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td></tr><tr><td>Treasury stock purchases</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 578 )</td><td>​ ​</td><td></td><td>( 43,324 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>( 43,324 )</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 51</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td></tr><tr><td>Balance at DecemberΒ 31, 2024</td><td></td><td>83,639</td><td>​ ​</td><td>$</td><td>777,090</td><td>​ ​</td><td>$</td><td>2,594,173</td><td></td><td>( 43,310 )</td><td>​ ​</td><td>$</td><td>( 962,650 )</td><td>​ ​</td><td>$</td><td>168</td><td>​ ​</td><td>$</td><td>2,408,781</td></tr></table>
table
962650
monetaryItemType
table: <entity> 962650 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:StockholdersEquity
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Accumulated</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Other</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>CommonΒ Stock</td><td>​ ​</td><td>Retained</td><td>​ ​</td><td>TreasuryΒ Stock</td><td>​ ​</td><td>Comprehensive</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>Earnings</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>IncomeΒ (Loss)</td><td>​ ​</td><td>Total</td></tr><tr><td>Balance at DecemberΒ 31, 2021</td><td></td><td>82,336</td><td>​ ​</td><td>$</td><td>722,310</td><td>​ ​</td><td>$</td><td>2,163,916</td><td></td><td>( 31,956 )</td><td>​ ​</td><td>$</td><td>( 618,712 )</td><td>​ ​</td><td>$</td><td>β€”</td><td>​ ​</td><td>$</td><td>2,267,514</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>151</td><td>​ ​</td><td>​ ​</td><td>142</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>142</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 38 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>106</td><td>​ ​</td><td>​ ​</td><td>2,815</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,815</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 1,224</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 3,802 )</td><td>​ ​</td><td></td><td>( 3,802 )</td></tr><tr><td>Balance at DecemberΒ 31, 2022</td><td></td><td>82,593</td><td>​ ​</td><td>$</td><td>734,426</td><td>​ ​</td><td>$</td><td>2,236,869</td><td></td><td>( 31,994 )</td><td>​ ​</td><td>$</td><td>( 619,862 )</td><td>​ ​</td><td>$</td><td>( 3,802 )</td><td>​ ​</td><td>$</td><td>2,347,631</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>130</td><td>​ ​</td><td>​ ​</td><td>57</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>57</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 32 )</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>117</td><td>​ ​</td><td>​ ​</td><td>2,754</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,754</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td></tr><tr><td>Treasury stock purchases and related excise tax</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 10,589 )</td><td>​ ​</td><td></td><td>( 291,949 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 291,949 )</td></tr><tr><td>Net unrealized appreciation on marketable securities, net of tax of $ 1,329</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>4,127</td><td>​ ​</td><td></td><td>4,127</td></tr><tr><td>Balance at DecemberΒ 31, 2023</td><td></td><td>82,840</td><td>​ ​</td><td>$</td><td>754,362</td><td>​ ​</td><td>$</td><td>2,271,211</td><td></td><td>( 42,615 )</td><td>​ ​</td><td>$</td><td>( 912,396 )</td><td>​ ​</td><td>$</td><td>325</td><td>​ ​</td><td>$</td><td>2,113,502</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td></tr><tr><td>Vested employee stock awards</td><td></td><td>270</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 117 )</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>48</td><td>​ ​</td><td>​ ​</td><td>2,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,864</td></tr><tr><td>Issuance of common stock upon warrant exercise, net</td><td>​ ​</td><td>481</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td></tr><tr><td>Treasury stock purchases</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 578 )</td><td>​ ​</td><td></td><td>( 43,324 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>( 43,324 )</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 51</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td></tr><tr><td>Balance at DecemberΒ 31, 2024</td><td></td><td>83,639</td><td>​ ​</td><td>$</td><td>777,090</td><td>​ ​</td><td>$</td><td>2,594,173</td><td></td><td>( 43,310 )</td><td>​ ​</td><td>$</td><td>( 962,650 )</td><td>​ ​</td><td>$</td><td>168</td><td>​ ​</td><td>$</td><td>2,408,781</td></tr></table>
table
168
monetaryItemType
table: <entity> 168 </entity> <entity type> monetaryItemType </entity type> <context> Balance at DecemberΒ 31, 2024 | 83,639 | ​ ​ | $ | 777,090 | ​ ​ | $ | 2,594,173 | ( 43,310 ) | ​ ​ | $ | ( 962,650 ) | ​ ​ | $ | 168 | ​ ​ | $ | 2,408,781 </context>
us-gaap:StockholdersEquity
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Accumulated</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>Other</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>CommonΒ Stock</td><td>​ ​</td><td>Retained</td><td>​ ​</td><td>TreasuryΒ Stock</td><td>​ ​</td><td>Comprehensive</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>Earnings</td><td>​ ​</td><td>Shares</td><td>​ ​</td><td>Amount</td><td>​ ​</td><td>IncomeΒ (Loss)</td><td>​ ​</td><td>Total</td></tr><tr><td>Balance at DecemberΒ 31, 2021</td><td></td><td>82,336</td><td>​ ​</td><td>$</td><td>722,310</td><td>​ ​</td><td>$</td><td>2,163,916</td><td></td><td>( 31,956 )</td><td>​ ​</td><td>$</td><td>( 618,712 )</td><td>​ ​</td><td>$</td><td>β€”</td><td>​ ​</td><td>$</td><td>2,267,514</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>72,953</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>151</td><td>​ ​</td><td>​ ​</td><td>142</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>142</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 38 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 1,150 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>106</td><td>​ ​</td><td>​ ​</td><td>2,815</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,815</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>9,159</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 1,224</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 3,802 )</td><td>​ ​</td><td></td><td>( 3,802 )</td></tr><tr><td>Balance at DecemberΒ 31, 2022</td><td></td><td>82,593</td><td>​ ​</td><td>$</td><td>734,426</td><td>​ ​</td><td>$</td><td>2,236,869</td><td></td><td>( 31,994 )</td><td>​ ​</td><td>$</td><td>( 619,862 )</td><td>​ ​</td><td>$</td><td>( 3,802 )</td><td>​ ​</td><td>$</td><td>2,347,631</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>34,342</td></tr><tr><td>Exercise of common stock options and vested employee stock awards</td><td></td><td>130</td><td>​ ​</td><td>​ ​</td><td>57</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>57</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 32 )</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 585 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>117</td><td>​ ​</td><td>​ ​</td><td>2,754</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,754</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>17,125</td></tr><tr><td>Treasury stock purchases and related excise tax</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 10,589 )</td><td>​ ​</td><td></td><td>( 291,949 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 291,949 )</td></tr><tr><td>Net unrealized appreciation on marketable securities, net of tax of $ 1,329</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>4,127</td><td>​ ​</td><td></td><td>4,127</td></tr><tr><td>Balance at DecemberΒ 31, 2023</td><td></td><td>82,840</td><td>​ ​</td><td>$</td><td>754,362</td><td>​ ​</td><td>$</td><td>2,271,211</td><td></td><td>( 42,615 )</td><td>​ ​</td><td>$</td><td>( 912,396 )</td><td>​ ​</td><td>$</td><td>325</td><td>​ ​</td><td>$</td><td>2,113,502</td></tr><tr><td>Net income</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>322,962</td></tr><tr><td>Vested employee stock awards</td><td></td><td>270</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Employee income tax paid on vested equity awards</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>( 117 )</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 6,930 )</td></tr><tr><td>Sale of common stock under employee stock purchase plan</td><td></td><td>48</td><td>​ ​</td><td>​ ​</td><td>2,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>2,864</td></tr><tr><td>Issuance of common stock upon warrant exercise, net</td><td>​ ​</td><td>481</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td></tr><tr><td>Stock based compensation expense</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>19,864</td></tr><tr><td>Treasury stock purchases</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>β€”</td><td></td><td>( 578 )</td><td>​ ​</td><td></td><td>( 43,324 )</td><td>​ ​</td><td></td><td>β€”</td><td>​ ​</td><td></td><td>( 43,324 )</td></tr><tr><td>Net unrealized depreciation on marketable securities, net of tax of $ 51</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>β€”</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td><td>​ ​</td><td>​ ​</td><td>( 157 )</td></tr><tr><td>Balance at DecemberΒ 31, 2024</td><td></td><td>83,639</td><td>​ ​</td><td>$</td><td>777,090</td><td>​ ​</td><td>$</td><td>2,594,173</td><td></td><td>( 43,310 )</td><td>​ ​</td><td>$</td><td>( 962,650 )</td><td>​ ​</td><td>$</td><td>168</td><td>​ ​</td><td>$</td><td>2,408,781</td></tr></table>
table
2408781
monetaryItemType
table: <entity> 2408781 </entity> <entity type> monetaryItemType </entity type> <context> Balance at DecemberΒ 31, 2024 | 83,639 | ​ ​ | $ | 777,090 | ​ ​ | $ | 2,594,173 | ( 43,310 ) | ​ ​ | $ | ( 962,650 ) | ​ ​ | $ | 168 | ​ ​ | $ | 2,408,781 </context>
us-gaap:StockholdersEquity
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Year Ended DecemberΒ 31,</td></tr><tr><td>​ ​</td><td></td><td>2024</td><td>​ ​</td><td>2023</td><td>​ ​</td><td>​ ​</td><td>2022</td><td></td></tr><tr><td>CASH FLOWS FROM OPERATING ACTIVITIES: CASH FLOWS FROM OPERATING ACTIVITIES:</td><td>​ ​</td><td>​ ​</td><td> </td><td> </td><td>​ ​</td><td> </td><td> </td><td>​ ​</td><td> </td><td>​ ​</td></tr><tr><td>Net income Net income</td><td>​ ​</td><td>$ $</td><td>322,962 322,962</td><td>​ ​</td><td>$ $</td><td>34,342 34,342</td><td>​ ​</td><td>$ $</td><td>72,953 72,953</td><td>​ ​</td></tr><tr><td>Adjustments to reconcile net income to net cash provided by operating activities: Adjustments to reconcile net income to net cash provided by operating activities:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Depreciation and amortization Depreciation and amortization</td><td>​ ​</td><td> </td><td>383,880 383,880</td><td>​ ​</td><td> </td><td>383,115 383,115</td><td>​ ​</td><td> </td><td>394,552 394,552</td><td>​ ​</td></tr><tr><td>Stock based compensation expense Stock based compensation expense</td><td>​ ​</td><td> </td><td>19,864 19,864</td><td>​ ​</td><td> </td><td>17,125 17,125</td><td>​ ​</td><td> </td><td>9,159 9,159</td><td>​ ​</td></tr><tr><td>Decrease in credit loss reserves Decrease in credit loss reserves</td><td>​ ​</td><td>​ ​</td><td>( 3,628 ) ( 3,628 )</td><td>​ ​</td><td>​ ​</td><td>( 185 ) ( 185 )</td><td>​ ​</td><td>​ ​</td><td>( 4,591 ) ( 4,591 )</td><td>​ ​</td></tr><tr><td>Gain on disposal of fixed assets Gain on disposal of fixed assets</td><td>​ ​</td><td>​ ​</td><td>( 8,245 ) ( 8,245 )</td><td>​ ​</td><td>​ ​</td><td>( 14,295 ) ( 14,295 )</td><td>​ ​</td><td>​ ​</td><td>( 7,948 ) ( 7,948 )</td><td>​ ​</td></tr><tr><td>Loss (gain) on investments in other companies Loss (gain) on investments in other companies</td><td>​ ​</td><td>​ ​</td><td>6,815 6,815</td><td>​ ​</td><td>​ ​</td><td>479 479</td><td>​ ​</td><td>​ ​</td><td>( 11,380 ) ( 11,380 )</td><td>​ ​</td></tr><tr><td>Net increase in deferred income taxes Net increase in deferred income taxes</td><td>​ ​</td><td> </td><td>100,368 100,368</td><td>​ ​</td><td> </td><td>539 539</td><td>​ ​</td><td> </td><td>23,825 23,825</td><td>​ ​</td></tr><tr><td>Impairment (gain) on assets held for sale Impairment (gain) on assets held for sale</td><td>​ ​</td><td>​ ​</td><td>( 4,157 ) ( 4,157 )</td><td>​ ​</td><td>​ ​</td><td>2,318 2,318</td><td>​ ​</td><td>​ ​</td><td>51,384 51,384</td><td>​ ​</td></tr><tr><td>Changes in operating assets and liabilities: Changes in operating assets and liabilities:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Decrease (increase) in receivables Decrease (increase) in receivables</td><td>​ ​</td><td> </td><td>( 41,171 ) ( 41,171 )</td><td>​ ​</td><td> </td><td>19,818 19,818</td><td>​ ​</td><td> </td><td>( 32,959 ) ( 32,959 )</td><td>​ ​</td></tr><tr><td>Decrease (increase) in income tax receivable Decrease (increase) in income tax receivable</td><td>​ ​</td><td> </td><td>( 7,504 ) ( 7,504 )</td><td>​ ​</td><td> </td><td>997 997</td><td>​ ​</td><td> </td><td>7,815 7,815</td><td>​ ​</td></tr><tr><td>Increase in inventories Increase in inventories</td><td>​ ​</td><td> </td><td>( 11,888 ) ( 11,888 )</td><td>​ ​</td><td> </td><td>( 3,905 ) ( 3,905 )</td><td>​ ​</td><td> </td><td>( 16,628 ) ( 16,628 )</td><td>​ ​</td></tr><tr><td>Decrease (increase) in other current assets Decrease (increase) in other current assets</td><td>​ ​</td><td> </td><td>( 13,813 ) ( 13,813 )</td><td>​ ​</td><td> </td><td>1,593 1,593</td><td>​ ​</td><td> </td><td>( 2,871 ) ( 2,871 )</td><td>​ ​</td></tr><tr><td>Decrease (increase) in operating lease right-of-use assets Decrease (increase) in operating lease right-of-use assets</td><td>​ ​</td><td>​ ​</td><td>( 1,004 ) ( 1,004 )</td><td>​ ​</td><td>​ ​</td><td>25,954 25,954</td><td>​ ​</td><td>​ ​</td><td>86,588 86,588</td><td>​ ​</td></tr><tr><td>Increase (decrease) in operating lease liabilities Increase (decrease) in operating lease liabilities</td><td>​ ​</td><td>​ ​</td><td>1,004 1,004</td><td>​ ​</td><td>​ ​</td><td>( 54,984 ) ( 54,984 )</td><td>​ ​</td><td>​ ​</td><td>( 76,812 ) ( 76,812 )</td><td>​ ​</td></tr><tr><td>Increase (decrease) in deferred revenue Increase (decrease) in deferred revenue</td><td>​ ​</td><td>​ ​</td><td>( 40,012 ) ( 40,012 )</td><td>​ ​</td><td>​ ​</td><td>229,862 229,862</td><td>​ ​</td><td>​ ​</td><td>40,812 40,812</td><td>​ ​</td></tr><tr><td>Decrease (increase) in unbilled revenue Decrease (increase) in unbilled revenue</td><td>​ ​</td><td>​ ​</td><td>( 7,871 ) ( 7,871 )</td><td>​ ​</td><td>​ ​</td><td>12,601 12,601</td><td>​ ​</td><td>​ ​</td><td>( 11,491 ) ( 11,491 )</td><td>​ ​</td></tr><tr><td>Increase (decrease) in accounts payable and other current liabilities Increase (decrease) in accounts payable and other current liabilities</td><td>​ ​</td><td> </td><td>( 3,138 ) ( 3,138 )</td><td>​ ​</td><td> </td><td>80,960 80,960</td><td>​ ​</td><td> </td><td>( 42,032 ) ( 42,032 )</td><td>​ ​</td></tr><tr><td>NET CASH PROVIDED BY OPERATING ACTIVITIES NET CASH PROVIDED BY OPERATING ACTIVITIES</td><td>​ ​</td><td> </td><td>692,462 692,462</td><td>​ ​</td><td> </td><td>736,334 736,334</td><td>​ ​</td><td> </td><td>480,376 480,376</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>CASH FLOWS FROM INVESTING ACTIVITIES: CASH FLOWS FROM INVESTING ACTIVITIES:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Purchases of marketable securities Purchases of marketable securities</td><td>​ ​</td><td> </td><td>( 1,430,733 ) ( 1,430,733 )</td><td>​ ​</td><td> </td><td>( 1,339,465 ) ( 1,339,465 )</td><td>​ ​</td><td> </td><td>( 1,834,403 ) ( 1,834,403 )</td><td>​ ​</td></tr><tr><td>Sales of marketable securities Sales of marketable securities</td><td>​ ​</td><td> </td><td>1,543,256 1,543,256</td><td>​ ​</td><td> </td><td>1,600,877 1,600,877</td><td>​ ​</td><td> </td><td>1,488,359 1,488,359</td><td>​ ​</td></tr><tr><td>Acquisition of property and equipment: Acquisition of property and equipment:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Aircraft and rotable spare parts Aircraft and rotable spare parts</td><td>​ ​</td><td> </td><td>( 265,854 ) ( 265,854 )</td><td>​ ​</td><td> </td><td>( 238,068 ) ( 238,068 )</td><td>​ ​</td><td> </td><td>( 632,460 ) ( 632,460 )</td><td>​ ​</td></tr><tr><td>Buildings and ground equipment Buildings and ground equipment</td><td>​ ​</td><td> </td><td>( 44,895 ) ( 44,895 )</td><td>​ ​</td><td> </td><td>( 13,258 ) ( 13,258 )</td><td>​ ​</td><td> </td><td>( 13,031 ) ( 13,031 )</td><td>​ ​</td></tr><tr><td>Proceeds from the sale of property and equipment Proceeds from the sale of property and equipment</td><td>​ ​</td><td> </td><td>5,154 5,154</td><td>​ ​</td><td> </td><td>15,879 15,879</td><td>​ ​</td><td> </td><td>16,983 16,983</td><td>​ ​</td></tr><tr><td>Deposits on aircraft Deposits on aircraft</td><td>​ ​</td><td>​ ​</td><td>( 17,535 ) ( 17,535 )</td><td>​ ​</td><td>​ ​</td><td>( 65,000 ) ( 65,000 )</td><td>​ ​</td><td>​ ​</td><td>( 37,100 ) ( 37,100 )</td><td>​ ​</td></tr><tr><td>Aircraft deposits applied towards acquired aircraft Aircraft deposits applied towards acquired aircraft</td><td>​ ​</td><td>​ ​</td><td>β€” β€”</td><td>​ ​</td><td>​ ​</td><td>11,649 11,649</td><td>​ ​</td><td>​ ​</td><td>138,383 138,383</td><td>​ ​</td></tr><tr><td>Decrease (increase) in investments and financing activities with third parties and other assets Decrease (increase) in investments and financing activities with third parties and other assets</td><td>​ ​</td><td> </td><td>( 18,020 ) ( 18,020 )</td><td>​ ​</td><td> </td><td>4,158 4,158</td><td>​ ​</td><td> </td><td>( 31,625 ) ( 31,625 )</td><td>​ ​</td></tr><tr><td>NET CASH USED IN INVESTING ACTIVITIES NET CASH USED IN INVESTING ACTIVITIES</td><td>​ ​</td><td> </td><td>( 228,627 ) ( 228,627 )</td><td>​ ​</td><td> </td><td>( 23,228 ) ( 23,228 )</td><td>​ ​</td><td> </td><td>( 904,894 ) ( 904,894 )</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>CASH FLOWS FROM FINANCING ACTIVITIES: CASH FLOWS FROM FINANCING ACTIVITIES:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Proceeds from issuance of long-term debt Proceeds from issuance of long-term debt</td><td>​ ​</td><td> </td><td>116,165 116,165</td><td>​ ​</td><td> </td><td>69,689 69,689</td><td>​ ​</td><td> </td><td>684,502 684,502</td><td>​ ​</td></tr><tr><td>Principal payments on long-term debt Principal payments on long-term debt</td><td>​ ​</td><td> </td><td>( 452,855 ) ( 452,855 )</td><td>​ ​</td><td> </td><td>( 447,604 ) ( 447,604 )</td><td>​ ​</td><td> </td><td>( 415,050 ) ( 415,050 )</td><td>​ ​</td></tr><tr><td>Payment of debt issuance cost Payment of debt issuance cost</td><td>​ ​</td><td>​ ​</td><td>( 670 ) ( 670 )</td><td>​ ​</td><td>​ ​</td><td>( 175 ) ( 175 )</td><td>​ ​</td><td>​ ​</td><td>( 2,178 ) ( 2,178 )</td><td>​ ​</td></tr><tr><td>Net proceeds from issuance of common stock Net proceeds from issuance of common stock</td><td>​ ​</td><td> </td><td>2,864 2,864</td><td>​ ​</td><td> </td><td>2,811 2,811</td><td>​ ​</td><td> </td><td>2,957 2,957</td><td>​ ​</td></tr><tr><td>Employee income tax paid on vested equity awards Employee income tax paid on vested equity awards</td><td>​ ​</td><td>​ ​</td><td>( 6,930 ) ( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>( 585 ) ( 585 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 ) ( 1,150 )</td><td>​ ​</td></tr><tr><td>Purchase of treasury stock and related excise tax Purchase of treasury stock and related excise tax</td><td>​ ​</td><td> </td><td>( 43,324 ) ( 43,324 )</td><td>​ ​</td><td> </td><td>( 291,949 ) ( 291,949 )</td><td>​ ​</td><td> </td><td>β€” β€”</td><td>​ ​</td></tr><tr><td>NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES</td><td>​ ​</td><td> </td><td>( 384,750 ) ( 384,750 )</td><td>​ ​</td><td> </td><td>( 667,813 ) ( 667,813 )</td><td>​ ​</td><td> </td><td>269,081 269,081</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Increase (decrease) in cash and cash equivalents Increase (decrease) in cash and cash equivalents</td><td>​ ​</td><td> </td><td>79,085 79,085</td><td>​ ​</td><td> </td><td>45,293 45,293</td><td>​ ​</td><td> </td><td>( 155,437 ) ( 155,437 )</td><td>​ ​</td></tr><tr><td>Cash and cash equivalents at beginning of period Cash and cash equivalents at beginning of period</td><td>​ ​</td><td> </td><td>148,277 148,277</td><td>​ ​</td><td> </td><td>102,984 102,984</td><td>​ ​</td><td> </td><td>258,421 258,421</td><td>​ ​</td></tr><tr><td>CASH AND CASH EQUIVALENTS AT END OF PERIOD CASH AND CASH EQUIVALENTS AT END OF PERIOD</td><td>​ ​</td><td>$ $</td><td>227,362 227,362</td><td>​ ​</td><td>$ $</td><td>148,277 148,277</td><td>​ ​</td><td>$ $</td><td>102,984 102,984</td><td>​ ​</td></tr></table>
table
322962
monetaryItemType
table: <entity> 322962 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:ProfitLoss
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Year Ended DecemberΒ 31,</td></tr><tr><td>​ ​</td><td></td><td>2024</td><td>​ ​</td><td>2023</td><td>​ ​</td><td>​ ​</td><td>2022</td><td></td></tr><tr><td>CASH FLOWS FROM OPERATING ACTIVITIES: CASH FLOWS FROM OPERATING ACTIVITIES:</td><td>​ ​</td><td>​ ​</td><td> </td><td> </td><td>​ ​</td><td> </td><td> </td><td>​ ​</td><td> </td><td>​ ​</td></tr><tr><td>Net income Net income</td><td>​ ​</td><td>$ $</td><td>322,962 322,962</td><td>​ ​</td><td>$ $</td><td>34,342 34,342</td><td>​ ​</td><td>$ $</td><td>72,953 72,953</td><td>​ ​</td></tr><tr><td>Adjustments to reconcile net income to net cash provided by operating activities: Adjustments to reconcile net income to net cash provided by operating activities:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Depreciation and amortization Depreciation and amortization</td><td>​ ​</td><td> </td><td>383,880 383,880</td><td>​ ​</td><td> </td><td>383,115 383,115</td><td>​ ​</td><td> </td><td>394,552 394,552</td><td>​ ​</td></tr><tr><td>Stock based compensation expense Stock based compensation expense</td><td>​ ​</td><td> </td><td>19,864 19,864</td><td>​ ​</td><td> </td><td>17,125 17,125</td><td>​ ​</td><td> </td><td>9,159 9,159</td><td>​ ​</td></tr><tr><td>Decrease in credit loss reserves Decrease in credit loss reserves</td><td>​ ​</td><td>​ ​</td><td>( 3,628 ) ( 3,628 )</td><td>​ ​</td><td>​ ​</td><td>( 185 ) ( 185 )</td><td>​ ​</td><td>​ ​</td><td>( 4,591 ) ( 4,591 )</td><td>​ ​</td></tr><tr><td>Gain on disposal of fixed assets Gain on disposal of fixed assets</td><td>​ ​</td><td>​ ​</td><td>( 8,245 ) ( 8,245 )</td><td>​ ​</td><td>​ ​</td><td>( 14,295 ) ( 14,295 )</td><td>​ ​</td><td>​ ​</td><td>( 7,948 ) ( 7,948 )</td><td>​ ​</td></tr><tr><td>Loss (gain) on investments in other companies Loss (gain) on investments in other companies</td><td>​ ​</td><td>​ ​</td><td>6,815 6,815</td><td>​ ​</td><td>​ ​</td><td>479 479</td><td>​ ​</td><td>​ ​</td><td>( 11,380 ) ( 11,380 )</td><td>​ ​</td></tr><tr><td>Net increase in deferred income taxes Net increase in deferred income taxes</td><td>​ ​</td><td> </td><td>100,368 100,368</td><td>​ ​</td><td> </td><td>539 539</td><td>​ ​</td><td> </td><td>23,825 23,825</td><td>​ ​</td></tr><tr><td>Impairment (gain) on assets held for sale Impairment (gain) on assets held for sale</td><td>​ ​</td><td>​ ​</td><td>( 4,157 ) ( 4,157 )</td><td>​ ​</td><td>​ ​</td><td>2,318 2,318</td><td>​ ​</td><td>​ ​</td><td>51,384 51,384</td><td>​ ​</td></tr><tr><td>Changes in operating assets and liabilities: Changes in operating assets and liabilities:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Decrease (increase) in receivables Decrease (increase) in receivables</td><td>​ ​</td><td> </td><td>( 41,171 ) ( 41,171 )</td><td>​ ​</td><td> </td><td>19,818 19,818</td><td>​ ​</td><td> </td><td>( 32,959 ) ( 32,959 )</td><td>​ ​</td></tr><tr><td>Decrease (increase) in income tax receivable Decrease (increase) in income tax receivable</td><td>​ ​</td><td> </td><td>( 7,504 ) ( 7,504 )</td><td>​ ​</td><td> </td><td>997 997</td><td>​ ​</td><td> </td><td>7,815 7,815</td><td>​ ​</td></tr><tr><td>Increase in inventories Increase in inventories</td><td>​ ​</td><td> </td><td>( 11,888 ) ( 11,888 )</td><td>​ ​</td><td> </td><td>( 3,905 ) ( 3,905 )</td><td>​ ​</td><td> </td><td>( 16,628 ) ( 16,628 )</td><td>​ ​</td></tr><tr><td>Decrease (increase) in other current assets Decrease (increase) in other current assets</td><td>​ ​</td><td> </td><td>( 13,813 ) ( 13,813 )</td><td>​ ​</td><td> </td><td>1,593 1,593</td><td>​ ​</td><td> </td><td>( 2,871 ) ( 2,871 )</td><td>​ ​</td></tr><tr><td>Decrease (increase) in operating lease right-of-use assets Decrease (increase) in operating lease right-of-use assets</td><td>​ ​</td><td>​ ​</td><td>( 1,004 ) ( 1,004 )</td><td>​ ​</td><td>​ ​</td><td>25,954 25,954</td><td>​ ​</td><td>​ ​</td><td>86,588 86,588</td><td>​ ​</td></tr><tr><td>Increase (decrease) in operating lease liabilities Increase (decrease) in operating lease liabilities</td><td>​ ​</td><td>​ ​</td><td>1,004 1,004</td><td>​ ​</td><td>​ ​</td><td>( 54,984 ) ( 54,984 )</td><td>​ ​</td><td>​ ​</td><td>( 76,812 ) ( 76,812 )</td><td>​ ​</td></tr><tr><td>Increase (decrease) in deferred revenue Increase (decrease) in deferred revenue</td><td>​ ​</td><td>​ ​</td><td>( 40,012 ) ( 40,012 )</td><td>​ ​</td><td>​ ​</td><td>229,862 229,862</td><td>​ ​</td><td>​ ​</td><td>40,812 40,812</td><td>​ ​</td></tr><tr><td>Decrease (increase) in unbilled revenue Decrease (increase) in unbilled revenue</td><td>​ ​</td><td>​ ​</td><td>( 7,871 ) ( 7,871 )</td><td>​ ​</td><td>​ ​</td><td>12,601 12,601</td><td>​ ​</td><td>​ ​</td><td>( 11,491 ) ( 11,491 )</td><td>​ ​</td></tr><tr><td>Increase (decrease) in accounts payable and other current liabilities Increase (decrease) in accounts payable and other current liabilities</td><td>​ ​</td><td> </td><td>( 3,138 ) ( 3,138 )</td><td>​ ​</td><td> </td><td>80,960 80,960</td><td>​ ​</td><td> </td><td>( 42,032 ) ( 42,032 )</td><td>​ ​</td></tr><tr><td>NET CASH PROVIDED BY OPERATING ACTIVITIES NET CASH PROVIDED BY OPERATING ACTIVITIES</td><td>​ ​</td><td> </td><td>692,462 692,462</td><td>​ ​</td><td> </td><td>736,334 736,334</td><td>​ ​</td><td> </td><td>480,376 480,376</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>CASH FLOWS FROM INVESTING ACTIVITIES: CASH FLOWS FROM INVESTING ACTIVITIES:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Purchases of marketable securities Purchases of marketable securities</td><td>​ ​</td><td> </td><td>( 1,430,733 ) ( 1,430,733 )</td><td>​ ​</td><td> </td><td>( 1,339,465 ) ( 1,339,465 )</td><td>​ ​</td><td> </td><td>( 1,834,403 ) ( 1,834,403 )</td><td>​ ​</td></tr><tr><td>Sales of marketable securities Sales of marketable securities</td><td>​ ​</td><td> </td><td>1,543,256 1,543,256</td><td>​ ​</td><td> </td><td>1,600,877 1,600,877</td><td>​ ​</td><td> </td><td>1,488,359 1,488,359</td><td>​ ​</td></tr><tr><td>Acquisition of property and equipment: Acquisition of property and equipment:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Aircraft and rotable spare parts Aircraft and rotable spare parts</td><td>​ ​</td><td> </td><td>( 265,854 ) ( 265,854 )</td><td>​ ​</td><td> </td><td>( 238,068 ) ( 238,068 )</td><td>​ ​</td><td> </td><td>( 632,460 ) ( 632,460 )</td><td>​ ​</td></tr><tr><td>Buildings and ground equipment Buildings and ground equipment</td><td>​ ​</td><td> </td><td>( 44,895 ) ( 44,895 )</td><td>​ ​</td><td> </td><td>( 13,258 ) ( 13,258 )</td><td>​ ​</td><td> </td><td>( 13,031 ) ( 13,031 )</td><td>​ ​</td></tr><tr><td>Proceeds from the sale of property and equipment Proceeds from the sale of property and equipment</td><td>​ ​</td><td> </td><td>5,154 5,154</td><td>​ ​</td><td> </td><td>15,879 15,879</td><td>​ ​</td><td> </td><td>16,983 16,983</td><td>​ ​</td></tr><tr><td>Deposits on aircraft Deposits on aircraft</td><td>​ ​</td><td>​ ​</td><td>( 17,535 ) ( 17,535 )</td><td>​ ​</td><td>​ ​</td><td>( 65,000 ) ( 65,000 )</td><td>​ ​</td><td>​ ​</td><td>( 37,100 ) ( 37,100 )</td><td>​ ​</td></tr><tr><td>Aircraft deposits applied towards acquired aircraft Aircraft deposits applied towards acquired aircraft</td><td>​ ​</td><td>​ ​</td><td>β€” β€”</td><td>​ ​</td><td>​ ​</td><td>11,649 11,649</td><td>​ ​</td><td>​ ​</td><td>138,383 138,383</td><td>​ ​</td></tr><tr><td>Decrease (increase) in investments and financing activities with third parties and other assets Decrease (increase) in investments and financing activities with third parties and other assets</td><td>​ ​</td><td> </td><td>( 18,020 ) ( 18,020 )</td><td>​ ​</td><td> </td><td>4,158 4,158</td><td>​ ​</td><td> </td><td>( 31,625 ) ( 31,625 )</td><td>​ ​</td></tr><tr><td>NET CASH USED IN INVESTING ACTIVITIES NET CASH USED IN INVESTING ACTIVITIES</td><td>​ ​</td><td> </td><td>( 228,627 ) ( 228,627 )</td><td>​ ​</td><td> </td><td>( 23,228 ) ( 23,228 )</td><td>​ ​</td><td> </td><td>( 904,894 ) ( 904,894 )</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>CASH FLOWS FROM FINANCING ACTIVITIES: CASH FLOWS FROM FINANCING ACTIVITIES:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Proceeds from issuance of long-term debt Proceeds from issuance of long-term debt</td><td>​ ​</td><td> </td><td>116,165 116,165</td><td>​ ​</td><td> </td><td>69,689 69,689</td><td>​ ​</td><td> </td><td>684,502 684,502</td><td>​ ​</td></tr><tr><td>Principal payments on long-term debt Principal payments on long-term debt</td><td>​ ​</td><td> </td><td>( 452,855 ) ( 452,855 )</td><td>​ ​</td><td> </td><td>( 447,604 ) ( 447,604 )</td><td>​ ​</td><td> </td><td>( 415,050 ) ( 415,050 )</td><td>​ ​</td></tr><tr><td>Payment of debt issuance cost Payment of debt issuance cost</td><td>​ ​</td><td>​ ​</td><td>( 670 ) ( 670 )</td><td>​ ​</td><td>​ ​</td><td>( 175 ) ( 175 )</td><td>​ ​</td><td>​ ​</td><td>( 2,178 ) ( 2,178 )</td><td>​ ​</td></tr><tr><td>Net proceeds from issuance of common stock Net proceeds from issuance of common stock</td><td>​ ​</td><td> </td><td>2,864 2,864</td><td>​ ​</td><td> </td><td>2,811 2,811</td><td>​ ​</td><td> </td><td>2,957 2,957</td><td>​ ​</td></tr><tr><td>Employee income tax paid on vested equity awards Employee income tax paid on vested equity awards</td><td>​ ​</td><td>​ ​</td><td>( 6,930 ) ( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>( 585 ) ( 585 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 ) ( 1,150 )</td><td>​ ​</td></tr><tr><td>Purchase of treasury stock and related excise tax Purchase of treasury stock and related excise tax</td><td>​ ​</td><td> </td><td>( 43,324 ) ( 43,324 )</td><td>​ ​</td><td> </td><td>( 291,949 ) ( 291,949 )</td><td>​ ​</td><td> </td><td>β€” β€”</td><td>​ ​</td></tr><tr><td>NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES</td><td>​ ​</td><td> </td><td>( 384,750 ) ( 384,750 )</td><td>​ ​</td><td> </td><td>( 667,813 ) ( 667,813 )</td><td>​ ​</td><td> </td><td>269,081 269,081</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Increase (decrease) in cash and cash equivalents Increase (decrease) in cash and cash equivalents</td><td>​ ​</td><td> </td><td>79,085 79,085</td><td>​ ​</td><td> </td><td>45,293 45,293</td><td>​ ​</td><td> </td><td>( 155,437 ) ( 155,437 )</td><td>​ ​</td></tr><tr><td>Cash and cash equivalents at beginning of period Cash and cash equivalents at beginning of period</td><td>​ ​</td><td> </td><td>148,277 148,277</td><td>​ ​</td><td> </td><td>102,984 102,984</td><td>​ ​</td><td> </td><td>258,421 258,421</td><td>​ ​</td></tr><tr><td>CASH AND CASH EQUIVALENTS AT END OF PERIOD CASH AND CASH EQUIVALENTS AT END OF PERIOD</td><td>​ ​</td><td>$ $</td><td>227,362 227,362</td><td>​ ​</td><td>$ $</td><td>148,277 148,277</td><td>​ ​</td><td>$ $</td><td>102,984 102,984</td><td>​ ​</td></tr></table>
table
34342
monetaryItemType
table: <entity> 34342 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:ProfitLoss
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Year Ended DecemberΒ 31,</td></tr><tr><td>​ ​</td><td></td><td>2024</td><td>​ ​</td><td>2023</td><td>​ ​</td><td>​ ​</td><td>2022</td><td></td></tr><tr><td>CASH FLOWS FROM OPERATING ACTIVITIES: CASH FLOWS FROM OPERATING ACTIVITIES:</td><td>​ ​</td><td>​ ​</td><td> </td><td> </td><td>​ ​</td><td> </td><td> </td><td>​ ​</td><td> </td><td>​ ​</td></tr><tr><td>Net income Net income</td><td>​ ​</td><td>$ $</td><td>322,962 322,962</td><td>​ ​</td><td>$ $</td><td>34,342 34,342</td><td>​ ​</td><td>$ $</td><td>72,953 72,953</td><td>​ ​</td></tr><tr><td>Adjustments to reconcile net income to net cash provided by operating activities: Adjustments to reconcile net income to net cash provided by operating activities:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Depreciation and amortization Depreciation and amortization</td><td>​ ​</td><td> </td><td>383,880 383,880</td><td>​ ​</td><td> </td><td>383,115 383,115</td><td>​ ​</td><td> </td><td>394,552 394,552</td><td>​ ​</td></tr><tr><td>Stock based compensation expense Stock based compensation expense</td><td>​ ​</td><td> </td><td>19,864 19,864</td><td>​ ​</td><td> </td><td>17,125 17,125</td><td>​ ​</td><td> </td><td>9,159 9,159</td><td>​ ​</td></tr><tr><td>Decrease in credit loss reserves Decrease in credit loss reserves</td><td>​ ​</td><td>​ ​</td><td>( 3,628 ) ( 3,628 )</td><td>​ ​</td><td>​ ​</td><td>( 185 ) ( 185 )</td><td>​ ​</td><td>​ ​</td><td>( 4,591 ) ( 4,591 )</td><td>​ ​</td></tr><tr><td>Gain on disposal of fixed assets Gain on disposal of fixed assets</td><td>​ ​</td><td>​ ​</td><td>( 8,245 ) ( 8,245 )</td><td>​ ​</td><td>​ ​</td><td>( 14,295 ) ( 14,295 )</td><td>​ ​</td><td>​ ​</td><td>( 7,948 ) ( 7,948 )</td><td>​ ​</td></tr><tr><td>Loss (gain) on investments in other companies Loss (gain) on investments in other companies</td><td>​ ​</td><td>​ ​</td><td>6,815 6,815</td><td>​ ​</td><td>​ ​</td><td>479 479</td><td>​ ​</td><td>​ ​</td><td>( 11,380 ) ( 11,380 )</td><td>​ ​</td></tr><tr><td>Net increase in deferred income taxes Net increase in deferred income taxes</td><td>​ ​</td><td> </td><td>100,368 100,368</td><td>​ ​</td><td> </td><td>539 539</td><td>​ ​</td><td> </td><td>23,825 23,825</td><td>​ ​</td></tr><tr><td>Impairment (gain) on assets held for sale Impairment (gain) on assets held for sale</td><td>​ ​</td><td>​ ​</td><td>( 4,157 ) ( 4,157 )</td><td>​ ​</td><td>​ ​</td><td>2,318 2,318</td><td>​ ​</td><td>​ ​</td><td>51,384 51,384</td><td>​ ​</td></tr><tr><td>Changes in operating assets and liabilities: Changes in operating assets and liabilities:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Decrease (increase) in receivables Decrease (increase) in receivables</td><td>​ ​</td><td> </td><td>( 41,171 ) ( 41,171 )</td><td>​ ​</td><td> </td><td>19,818 19,818</td><td>​ ​</td><td> </td><td>( 32,959 ) ( 32,959 )</td><td>​ ​</td></tr><tr><td>Decrease (increase) in income tax receivable Decrease (increase) in income tax receivable</td><td>​ ​</td><td> </td><td>( 7,504 ) ( 7,504 )</td><td>​ ​</td><td> </td><td>997 997</td><td>​ ​</td><td> </td><td>7,815 7,815</td><td>​ ​</td></tr><tr><td>Increase in inventories Increase in inventories</td><td>​ ​</td><td> </td><td>( 11,888 ) ( 11,888 )</td><td>​ ​</td><td> </td><td>( 3,905 ) ( 3,905 )</td><td>​ ​</td><td> </td><td>( 16,628 ) ( 16,628 )</td><td>​ ​</td></tr><tr><td>Decrease (increase) in other current assets Decrease (increase) in other current assets</td><td>​ ​</td><td> </td><td>( 13,813 ) ( 13,813 )</td><td>​ ​</td><td> </td><td>1,593 1,593</td><td>​ ​</td><td> </td><td>( 2,871 ) ( 2,871 )</td><td>​ ​</td></tr><tr><td>Decrease (increase) in operating lease right-of-use assets Decrease (increase) in operating lease right-of-use assets</td><td>​ ​</td><td>​ ​</td><td>( 1,004 ) ( 1,004 )</td><td>​ ​</td><td>​ ​</td><td>25,954 25,954</td><td>​ ​</td><td>​ ​</td><td>86,588 86,588</td><td>​ ​</td></tr><tr><td>Increase (decrease) in operating lease liabilities Increase (decrease) in operating lease liabilities</td><td>​ ​</td><td>​ ​</td><td>1,004 1,004</td><td>​ ​</td><td>​ ​</td><td>( 54,984 ) ( 54,984 )</td><td>​ ​</td><td>​ ​</td><td>( 76,812 ) ( 76,812 )</td><td>​ ​</td></tr><tr><td>Increase (decrease) in deferred revenue Increase (decrease) in deferred revenue</td><td>​ ​</td><td>​ ​</td><td>( 40,012 ) ( 40,012 )</td><td>​ ​</td><td>​ ​</td><td>229,862 229,862</td><td>​ ​</td><td>​ ​</td><td>40,812 40,812</td><td>​ ​</td></tr><tr><td>Decrease (increase) in unbilled revenue Decrease (increase) in unbilled revenue</td><td>​ ​</td><td>​ ​</td><td>( 7,871 ) ( 7,871 )</td><td>​ ​</td><td>​ ​</td><td>12,601 12,601</td><td>​ ​</td><td>​ ​</td><td>( 11,491 ) ( 11,491 )</td><td>​ ​</td></tr><tr><td>Increase (decrease) in accounts payable and other current liabilities Increase (decrease) in accounts payable and other current liabilities</td><td>​ ​</td><td> </td><td>( 3,138 ) ( 3,138 )</td><td>​ ​</td><td> </td><td>80,960 80,960</td><td>​ ​</td><td> </td><td>( 42,032 ) ( 42,032 )</td><td>​ ​</td></tr><tr><td>NET CASH PROVIDED BY OPERATING ACTIVITIES NET CASH PROVIDED BY OPERATING ACTIVITIES</td><td>​ ​</td><td> </td><td>692,462 692,462</td><td>​ ​</td><td> </td><td>736,334 736,334</td><td>​ ​</td><td> </td><td>480,376 480,376</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>CASH FLOWS FROM INVESTING ACTIVITIES: CASH FLOWS FROM INVESTING ACTIVITIES:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Purchases of marketable securities Purchases of marketable securities</td><td>​ ​</td><td> </td><td>( 1,430,733 ) ( 1,430,733 )</td><td>​ ​</td><td> </td><td>( 1,339,465 ) ( 1,339,465 )</td><td>​ ​</td><td> </td><td>( 1,834,403 ) ( 1,834,403 )</td><td>​ ​</td></tr><tr><td>Sales of marketable securities Sales of marketable securities</td><td>​ ​</td><td> </td><td>1,543,256 1,543,256</td><td>​ ​</td><td> </td><td>1,600,877 1,600,877</td><td>​ ​</td><td> </td><td>1,488,359 1,488,359</td><td>​ ​</td></tr><tr><td>Acquisition of property and equipment: Acquisition of property and equipment:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Aircraft and rotable spare parts Aircraft and rotable spare parts</td><td>​ ​</td><td> </td><td>( 265,854 ) ( 265,854 )</td><td>​ ​</td><td> </td><td>( 238,068 ) ( 238,068 )</td><td>​ ​</td><td> </td><td>( 632,460 ) ( 632,460 )</td><td>​ ​</td></tr><tr><td>Buildings and ground equipment Buildings and ground equipment</td><td>​ ​</td><td> </td><td>( 44,895 ) ( 44,895 )</td><td>​ ​</td><td> </td><td>( 13,258 ) ( 13,258 )</td><td>​ ​</td><td> </td><td>( 13,031 ) ( 13,031 )</td><td>​ ​</td></tr><tr><td>Proceeds from the sale of property and equipment Proceeds from the sale of property and equipment</td><td>​ ​</td><td> </td><td>5,154 5,154</td><td>​ ​</td><td> </td><td>15,879 15,879</td><td>​ ​</td><td> </td><td>16,983 16,983</td><td>​ ​</td></tr><tr><td>Deposits on aircraft Deposits on aircraft</td><td>​ ​</td><td>​ ​</td><td>( 17,535 ) ( 17,535 )</td><td>​ ​</td><td>​ ​</td><td>( 65,000 ) ( 65,000 )</td><td>​ ​</td><td>​ ​</td><td>( 37,100 ) ( 37,100 )</td><td>​ ​</td></tr><tr><td>Aircraft deposits applied towards acquired aircraft Aircraft deposits applied towards acquired aircraft</td><td>​ ​</td><td>​ ​</td><td>β€” β€”</td><td>​ ​</td><td>​ ​</td><td>11,649 11,649</td><td>​ ​</td><td>​ ​</td><td>138,383 138,383</td><td>​ ​</td></tr><tr><td>Decrease (increase) in investments and financing activities with third parties and other assets Decrease (increase) in investments and financing activities with third parties and other assets</td><td>​ ​</td><td> </td><td>( 18,020 ) ( 18,020 )</td><td>​ ​</td><td> </td><td>4,158 4,158</td><td>​ ​</td><td> </td><td>( 31,625 ) ( 31,625 )</td><td>​ ​</td></tr><tr><td>NET CASH USED IN INVESTING ACTIVITIES NET CASH USED IN INVESTING ACTIVITIES</td><td>​ ​</td><td> </td><td>( 228,627 ) ( 228,627 )</td><td>​ ​</td><td> </td><td>( 23,228 ) ( 23,228 )</td><td>​ ​</td><td> </td><td>( 904,894 ) ( 904,894 )</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>CASH FLOWS FROM FINANCING ACTIVITIES: CASH FLOWS FROM FINANCING ACTIVITIES:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Proceeds from issuance of long-term debt Proceeds from issuance of long-term debt</td><td>​ ​</td><td> </td><td>116,165 116,165</td><td>​ ​</td><td> </td><td>69,689 69,689</td><td>​ ​</td><td> </td><td>684,502 684,502</td><td>​ ​</td></tr><tr><td>Principal payments on long-term debt Principal payments on long-term debt</td><td>​ ​</td><td> </td><td>( 452,855 ) ( 452,855 )</td><td>​ ​</td><td> </td><td>( 447,604 ) ( 447,604 )</td><td>​ ​</td><td> </td><td>( 415,050 ) ( 415,050 )</td><td>​ ​</td></tr><tr><td>Payment of debt issuance cost Payment of debt issuance cost</td><td>​ ​</td><td>​ ​</td><td>( 670 ) ( 670 )</td><td>​ ​</td><td>​ ​</td><td>( 175 ) ( 175 )</td><td>​ ​</td><td>​ ​</td><td>( 2,178 ) ( 2,178 )</td><td>​ ​</td></tr><tr><td>Net proceeds from issuance of common stock Net proceeds from issuance of common stock</td><td>​ ​</td><td> </td><td>2,864 2,864</td><td>​ ​</td><td> </td><td>2,811 2,811</td><td>​ ​</td><td> </td><td>2,957 2,957</td><td>​ ​</td></tr><tr><td>Employee income tax paid on vested equity awards Employee income tax paid on vested equity awards</td><td>​ ​</td><td>​ ​</td><td>( 6,930 ) ( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>( 585 ) ( 585 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 ) ( 1,150 )</td><td>​ ​</td></tr><tr><td>Purchase of treasury stock and related excise tax Purchase of treasury stock and related excise tax</td><td>​ ​</td><td> </td><td>( 43,324 ) ( 43,324 )</td><td>​ ​</td><td> </td><td>( 291,949 ) ( 291,949 )</td><td>​ ​</td><td> </td><td>β€” β€”</td><td>​ ​</td></tr><tr><td>NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES</td><td>​ ​</td><td> </td><td>( 384,750 ) ( 384,750 )</td><td>​ ​</td><td> </td><td>( 667,813 ) ( 667,813 )</td><td>​ ​</td><td> </td><td>269,081 269,081</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Increase (decrease) in cash and cash equivalents Increase (decrease) in cash and cash equivalents</td><td>​ ​</td><td> </td><td>79,085 79,085</td><td>​ ​</td><td> </td><td>45,293 45,293</td><td>​ ​</td><td> </td><td>( 155,437 ) ( 155,437 )</td><td>​ ​</td></tr><tr><td>Cash and cash equivalents at beginning of period Cash and cash equivalents at beginning of period</td><td>​ ​</td><td> </td><td>148,277 148,277</td><td>​ ​</td><td> </td><td>102,984 102,984</td><td>​ ​</td><td> </td><td>258,421 258,421</td><td>​ ​</td></tr><tr><td>CASH AND CASH EQUIVALENTS AT END OF PERIOD CASH AND CASH EQUIVALENTS AT END OF PERIOD</td><td>​ ​</td><td>$ $</td><td>227,362 227,362</td><td>​ ​</td><td>$ $</td><td>148,277 148,277</td><td>​ ​</td><td>$ $</td><td>102,984 102,984</td><td>​ ​</td></tr></table>
table
72953
monetaryItemType
table: <entity> 72953 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:ProfitLoss
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Year Ended DecemberΒ 31,</td></tr><tr><td>​ ​</td><td></td><td>2024</td><td>​ ​</td><td>2023</td><td>​ ​</td><td>​ ​</td><td>2022</td><td></td></tr><tr><td>CASH FLOWS FROM OPERATING ACTIVITIES: CASH FLOWS FROM OPERATING ACTIVITIES:</td><td>​ ​</td><td>​ ​</td><td> </td><td> </td><td>​ ​</td><td> </td><td> </td><td>​ ​</td><td> </td><td>​ ​</td></tr><tr><td>Net income Net income</td><td>​ ​</td><td>$ $</td><td>322,962 322,962</td><td>​ ​</td><td>$ $</td><td>34,342 34,342</td><td>​ ​</td><td>$ $</td><td>72,953 72,953</td><td>​ ​</td></tr><tr><td>Adjustments to reconcile net income to net cash provided by operating activities: Adjustments to reconcile net income to net cash provided by operating activities:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Depreciation and amortization Depreciation and amortization</td><td>​ ​</td><td> </td><td>383,880 383,880</td><td>​ ​</td><td> </td><td>383,115 383,115</td><td>​ ​</td><td> </td><td>394,552 394,552</td><td>​ ​</td></tr><tr><td>Stock based compensation expense Stock based compensation expense</td><td>​ ​</td><td> </td><td>19,864 19,864</td><td>​ ​</td><td> </td><td>17,125 17,125</td><td>​ ​</td><td> </td><td>9,159 9,159</td><td>​ ​</td></tr><tr><td>Decrease in credit loss reserves Decrease in credit loss reserves</td><td>​ ​</td><td>​ ​</td><td>( 3,628 ) ( 3,628 )</td><td>​ ​</td><td>​ ​</td><td>( 185 ) ( 185 )</td><td>​ ​</td><td>​ ​</td><td>( 4,591 ) ( 4,591 )</td><td>​ ​</td></tr><tr><td>Gain on disposal of fixed assets Gain on disposal of fixed assets</td><td>​ ​</td><td>​ ​</td><td>( 8,245 ) ( 8,245 )</td><td>​ ​</td><td>​ ​</td><td>( 14,295 ) ( 14,295 )</td><td>​ ​</td><td>​ ​</td><td>( 7,948 ) ( 7,948 )</td><td>​ ​</td></tr><tr><td>Loss (gain) on investments in other companies Loss (gain) on investments in other companies</td><td>​ ​</td><td>​ ​</td><td>6,815 6,815</td><td>​ ​</td><td>​ ​</td><td>479 479</td><td>​ ​</td><td>​ ​</td><td>( 11,380 ) ( 11,380 )</td><td>​ ​</td></tr><tr><td>Net increase in deferred income taxes Net increase in deferred income taxes</td><td>​ ​</td><td> </td><td>100,368 100,368</td><td>​ ​</td><td> </td><td>539 539</td><td>​ ​</td><td> </td><td>23,825 23,825</td><td>​ ​</td></tr><tr><td>Impairment (gain) on assets held for sale Impairment (gain) on assets held for sale</td><td>​ ​</td><td>​ ​</td><td>( 4,157 ) ( 4,157 )</td><td>​ ​</td><td>​ ​</td><td>2,318 2,318</td><td>​ ​</td><td>​ ​</td><td>51,384 51,384</td><td>​ ​</td></tr><tr><td>Changes in operating assets and liabilities: Changes in operating assets and liabilities:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Decrease (increase) in receivables Decrease (increase) in receivables</td><td>​ ​</td><td> </td><td>( 41,171 ) ( 41,171 )</td><td>​ ​</td><td> </td><td>19,818 19,818</td><td>​ ​</td><td> </td><td>( 32,959 ) ( 32,959 )</td><td>​ ​</td></tr><tr><td>Decrease (increase) in income tax receivable Decrease (increase) in income tax receivable</td><td>​ ​</td><td> </td><td>( 7,504 ) ( 7,504 )</td><td>​ ​</td><td> </td><td>997 997</td><td>​ ​</td><td> </td><td>7,815 7,815</td><td>​ ​</td></tr><tr><td>Increase in inventories Increase in inventories</td><td>​ ​</td><td> </td><td>( 11,888 ) ( 11,888 )</td><td>​ ​</td><td> </td><td>( 3,905 ) ( 3,905 )</td><td>​ ​</td><td> </td><td>( 16,628 ) ( 16,628 )</td><td>​ ​</td></tr><tr><td>Decrease (increase) in other current assets Decrease (increase) in other current assets</td><td>​ ​</td><td> </td><td>( 13,813 ) ( 13,813 )</td><td>​ ​</td><td> </td><td>1,593 1,593</td><td>​ ​</td><td> </td><td>( 2,871 ) ( 2,871 )</td><td>​ ​</td></tr><tr><td>Decrease (increase) in operating lease right-of-use assets Decrease (increase) in operating lease right-of-use assets</td><td>​ ​</td><td>​ ​</td><td>( 1,004 ) ( 1,004 )</td><td>​ ​</td><td>​ ​</td><td>25,954 25,954</td><td>​ ​</td><td>​ ​</td><td>86,588 86,588</td><td>​ ​</td></tr><tr><td>Increase (decrease) in operating lease liabilities Increase (decrease) in operating lease liabilities</td><td>​ ​</td><td>​ ​</td><td>1,004 1,004</td><td>​ ​</td><td>​ ​</td><td>( 54,984 ) ( 54,984 )</td><td>​ ​</td><td>​ ​</td><td>( 76,812 ) ( 76,812 )</td><td>​ ​</td></tr><tr><td>Increase (decrease) in deferred revenue Increase (decrease) in deferred revenue</td><td>​ ​</td><td>​ ​</td><td>( 40,012 ) ( 40,012 )</td><td>​ ​</td><td>​ ​</td><td>229,862 229,862</td><td>​ ​</td><td>​ ​</td><td>40,812 40,812</td><td>​ ​</td></tr><tr><td>Decrease (increase) in unbilled revenue Decrease (increase) in unbilled revenue</td><td>​ ​</td><td>​ ​</td><td>( 7,871 ) ( 7,871 )</td><td>​ ​</td><td>​ ​</td><td>12,601 12,601</td><td>​ ​</td><td>​ ​</td><td>( 11,491 ) ( 11,491 )</td><td>​ ​</td></tr><tr><td>Increase (decrease) in accounts payable and other current liabilities Increase (decrease) in accounts payable and other current liabilities</td><td>​ ​</td><td> </td><td>( 3,138 ) ( 3,138 )</td><td>​ ​</td><td> </td><td>80,960 80,960</td><td>​ ​</td><td> </td><td>( 42,032 ) ( 42,032 )</td><td>​ ​</td></tr><tr><td>NET CASH PROVIDED BY OPERATING ACTIVITIES NET CASH PROVIDED BY OPERATING ACTIVITIES</td><td>​ ​</td><td> </td><td>692,462 692,462</td><td>​ ​</td><td> </td><td>736,334 736,334</td><td>​ ​</td><td> </td><td>480,376 480,376</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>CASH FLOWS FROM INVESTING ACTIVITIES: CASH FLOWS FROM INVESTING ACTIVITIES:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Purchases of marketable securities Purchases of marketable securities</td><td>​ ​</td><td> </td><td>( 1,430,733 ) ( 1,430,733 )</td><td>​ ​</td><td> </td><td>( 1,339,465 ) ( 1,339,465 )</td><td>​ ​</td><td> </td><td>( 1,834,403 ) ( 1,834,403 )</td><td>​ ​</td></tr><tr><td>Sales of marketable securities Sales of marketable securities</td><td>​ ​</td><td> </td><td>1,543,256 1,543,256</td><td>​ ​</td><td> </td><td>1,600,877 1,600,877</td><td>​ ​</td><td> </td><td>1,488,359 1,488,359</td><td>​ ​</td></tr><tr><td>Acquisition of property and equipment: Acquisition of property and equipment:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Aircraft and rotable spare parts Aircraft and rotable spare parts</td><td>​ ​</td><td> </td><td>( 265,854 ) ( 265,854 )</td><td>​ ​</td><td> </td><td>( 238,068 ) ( 238,068 )</td><td>​ ​</td><td> </td><td>( 632,460 ) ( 632,460 )</td><td>​ ​</td></tr><tr><td>Buildings and ground equipment Buildings and ground equipment</td><td>​ ​</td><td> </td><td>( 44,895 ) ( 44,895 )</td><td>​ ​</td><td> </td><td>( 13,258 ) ( 13,258 )</td><td>​ ​</td><td> </td><td>( 13,031 ) ( 13,031 )</td><td>​ ​</td></tr><tr><td>Proceeds from the sale of property and equipment Proceeds from the sale of property and equipment</td><td>​ ​</td><td> </td><td>5,154 5,154</td><td>​ ​</td><td> </td><td>15,879 15,879</td><td>​ ​</td><td> </td><td>16,983 16,983</td><td>​ ​</td></tr><tr><td>Deposits on aircraft Deposits on aircraft</td><td>​ ​</td><td>​ ​</td><td>( 17,535 ) ( 17,535 )</td><td>​ ​</td><td>​ ​</td><td>( 65,000 ) ( 65,000 )</td><td>​ ​</td><td>​ ​</td><td>( 37,100 ) ( 37,100 )</td><td>​ ​</td></tr><tr><td>Aircraft deposits applied towards acquired aircraft Aircraft deposits applied towards acquired aircraft</td><td>​ ​</td><td>​ ​</td><td>β€” β€”</td><td>​ ​</td><td>​ ​</td><td>11,649 11,649</td><td>​ ​</td><td>​ ​</td><td>138,383 138,383</td><td>​ ​</td></tr><tr><td>Decrease (increase) in investments and financing activities with third parties and other assets Decrease (increase) in investments and financing activities with third parties and other assets</td><td>​ ​</td><td> </td><td>( 18,020 ) ( 18,020 )</td><td>​ ​</td><td> </td><td>4,158 4,158</td><td>​ ​</td><td> </td><td>( 31,625 ) ( 31,625 )</td><td>​ ​</td></tr><tr><td>NET CASH USED IN INVESTING ACTIVITIES NET CASH USED IN INVESTING ACTIVITIES</td><td>​ ​</td><td> </td><td>( 228,627 ) ( 228,627 )</td><td>​ ​</td><td> </td><td>( 23,228 ) ( 23,228 )</td><td>​ ​</td><td> </td><td>( 904,894 ) ( 904,894 )</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>CASH FLOWS FROM FINANCING ACTIVITIES: CASH FLOWS FROM FINANCING ACTIVITIES:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Proceeds from issuance of long-term debt Proceeds from issuance of long-term debt</td><td>​ ​</td><td> </td><td>116,165 116,165</td><td>​ ​</td><td> </td><td>69,689 69,689</td><td>​ ​</td><td> </td><td>684,502 684,502</td><td>​ ​</td></tr><tr><td>Principal payments on long-term debt Principal payments on long-term debt</td><td>​ ​</td><td> </td><td>( 452,855 ) ( 452,855 )</td><td>​ ​</td><td> </td><td>( 447,604 ) ( 447,604 )</td><td>​ ​</td><td> </td><td>( 415,050 ) ( 415,050 )</td><td>​ ​</td></tr><tr><td>Payment of debt issuance cost Payment of debt issuance cost</td><td>​ ​</td><td>​ ​</td><td>( 670 ) ( 670 )</td><td>​ ​</td><td>​ ​</td><td>( 175 ) ( 175 )</td><td>​ ​</td><td>​ ​</td><td>( 2,178 ) ( 2,178 )</td><td>​ ​</td></tr><tr><td>Net proceeds from issuance of common stock Net proceeds from issuance of common stock</td><td>​ ​</td><td> </td><td>2,864 2,864</td><td>​ ​</td><td> </td><td>2,811 2,811</td><td>​ ​</td><td> </td><td>2,957 2,957</td><td>​ ​</td></tr><tr><td>Employee income tax paid on vested equity awards Employee income tax paid on vested equity awards</td><td>​ ​</td><td>​ ​</td><td>( 6,930 ) ( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>( 585 ) ( 585 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 ) ( 1,150 )</td><td>​ ​</td></tr><tr><td>Purchase of treasury stock and related excise tax Purchase of treasury stock and related excise tax</td><td>​ ​</td><td> </td><td>( 43,324 ) ( 43,324 )</td><td>​ ​</td><td> </td><td>( 291,949 ) ( 291,949 )</td><td>​ ​</td><td> </td><td>β€” β€”</td><td>​ ​</td></tr><tr><td>NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES</td><td>​ ​</td><td> </td><td>( 384,750 ) ( 384,750 )</td><td>​ ​</td><td> </td><td>( 667,813 ) ( 667,813 )</td><td>​ ​</td><td> </td><td>269,081 269,081</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Increase (decrease) in cash and cash equivalents Increase (decrease) in cash and cash equivalents</td><td>​ ​</td><td> </td><td>79,085 79,085</td><td>​ ​</td><td> </td><td>45,293 45,293</td><td>​ ​</td><td> </td><td>( 155,437 ) ( 155,437 )</td><td>​ ​</td></tr><tr><td>Cash and cash equivalents at beginning of period Cash and cash equivalents at beginning of period</td><td>​ ​</td><td> </td><td>148,277 148,277</td><td>​ ​</td><td> </td><td>102,984 102,984</td><td>​ ​</td><td> </td><td>258,421 258,421</td><td>​ ​</td></tr><tr><td>CASH AND CASH EQUIVALENTS AT END OF PERIOD CASH AND CASH EQUIVALENTS AT END OF PERIOD</td><td>​ ​</td><td>$ $</td><td>227,362 227,362</td><td>​ ​</td><td>$ $</td><td>148,277 148,277</td><td>​ ​</td><td>$ $</td><td>102,984 102,984</td><td>​ ​</td></tr></table>
table
383880
monetaryItemType
table: <entity> 383880 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:DepreciationDepletionAndAmortization
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Year Ended DecemberΒ 31,</td></tr><tr><td>​ ​</td><td></td><td>2024</td><td>​ ​</td><td>2023</td><td>​ ​</td><td>​ ​</td><td>2022</td><td></td></tr><tr><td>CASH FLOWS FROM OPERATING ACTIVITIES: CASH FLOWS FROM OPERATING ACTIVITIES:</td><td>​ ​</td><td>​ ​</td><td> </td><td> </td><td>​ ​</td><td> </td><td> </td><td>​ ​</td><td> </td><td>​ ​</td></tr><tr><td>Net income Net income</td><td>​ ​</td><td>$ $</td><td>322,962 322,962</td><td>​ ​</td><td>$ $</td><td>34,342 34,342</td><td>​ ​</td><td>$ $</td><td>72,953 72,953</td><td>​ ​</td></tr><tr><td>Adjustments to reconcile net income to net cash provided by operating activities: Adjustments to reconcile net income to net cash provided by operating activities:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Depreciation and amortization Depreciation and amortization</td><td>​ ​</td><td> </td><td>383,880 383,880</td><td>​ ​</td><td> </td><td>383,115 383,115</td><td>​ ​</td><td> </td><td>394,552 394,552</td><td>​ ​</td></tr><tr><td>Stock based compensation expense Stock based compensation expense</td><td>​ ​</td><td> </td><td>19,864 19,864</td><td>​ ​</td><td> </td><td>17,125 17,125</td><td>​ ​</td><td> </td><td>9,159 9,159</td><td>​ ​</td></tr><tr><td>Decrease in credit loss reserves Decrease in credit loss reserves</td><td>​ ​</td><td>​ ​</td><td>( 3,628 ) ( 3,628 )</td><td>​ ​</td><td>​ ​</td><td>( 185 ) ( 185 )</td><td>​ ​</td><td>​ ​</td><td>( 4,591 ) ( 4,591 )</td><td>​ ​</td></tr><tr><td>Gain on disposal of fixed assets Gain on disposal of fixed assets</td><td>​ ​</td><td>​ ​</td><td>( 8,245 ) ( 8,245 )</td><td>​ ​</td><td>​ ​</td><td>( 14,295 ) ( 14,295 )</td><td>​ ​</td><td>​ ​</td><td>( 7,948 ) ( 7,948 )</td><td>​ ​</td></tr><tr><td>Loss (gain) on investments in other companies Loss (gain) on investments in other companies</td><td>​ ​</td><td>​ ​</td><td>6,815 6,815</td><td>​ ​</td><td>​ ​</td><td>479 479</td><td>​ ​</td><td>​ ​</td><td>( 11,380 ) ( 11,380 )</td><td>​ ​</td></tr><tr><td>Net increase in deferred income taxes Net increase in deferred income taxes</td><td>​ ​</td><td> </td><td>100,368 100,368</td><td>​ ​</td><td> </td><td>539 539</td><td>​ ​</td><td> </td><td>23,825 23,825</td><td>​ ​</td></tr><tr><td>Impairment (gain) on assets held for sale Impairment (gain) on assets held for sale</td><td>​ ​</td><td>​ ​</td><td>( 4,157 ) ( 4,157 )</td><td>​ ​</td><td>​ ​</td><td>2,318 2,318</td><td>​ ​</td><td>​ ​</td><td>51,384 51,384</td><td>​ ​</td></tr><tr><td>Changes in operating assets and liabilities: Changes in operating assets and liabilities:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Decrease (increase) in receivables Decrease (increase) in receivables</td><td>​ ​</td><td> </td><td>( 41,171 ) ( 41,171 )</td><td>​ ​</td><td> </td><td>19,818 19,818</td><td>​ ​</td><td> </td><td>( 32,959 ) ( 32,959 )</td><td>​ ​</td></tr><tr><td>Decrease (increase) in income tax receivable Decrease (increase) in income tax receivable</td><td>​ ​</td><td> </td><td>( 7,504 ) ( 7,504 )</td><td>​ ​</td><td> </td><td>997 997</td><td>​ ​</td><td> </td><td>7,815 7,815</td><td>​ ​</td></tr><tr><td>Increase in inventories Increase in inventories</td><td>​ ​</td><td> </td><td>( 11,888 ) ( 11,888 )</td><td>​ ​</td><td> </td><td>( 3,905 ) ( 3,905 )</td><td>​ ​</td><td> </td><td>( 16,628 ) ( 16,628 )</td><td>​ ​</td></tr><tr><td>Decrease (increase) in other current assets Decrease (increase) in other current assets</td><td>​ ​</td><td> </td><td>( 13,813 ) ( 13,813 )</td><td>​ ​</td><td> </td><td>1,593 1,593</td><td>​ ​</td><td> </td><td>( 2,871 ) ( 2,871 )</td><td>​ ​</td></tr><tr><td>Decrease (increase) in operating lease right-of-use assets Decrease (increase) in operating lease right-of-use assets</td><td>​ ​</td><td>​ ​</td><td>( 1,004 ) ( 1,004 )</td><td>​ ​</td><td>​ ​</td><td>25,954 25,954</td><td>​ ​</td><td>​ ​</td><td>86,588 86,588</td><td>​ ​</td></tr><tr><td>Increase (decrease) in operating lease liabilities Increase (decrease) in operating lease liabilities</td><td>​ ​</td><td>​ ​</td><td>1,004 1,004</td><td>​ ​</td><td>​ ​</td><td>( 54,984 ) ( 54,984 )</td><td>​ ​</td><td>​ ​</td><td>( 76,812 ) ( 76,812 )</td><td>​ ​</td></tr><tr><td>Increase (decrease) in deferred revenue Increase (decrease) in deferred revenue</td><td>​ ​</td><td>​ ​</td><td>( 40,012 ) ( 40,012 )</td><td>​ ​</td><td>​ ​</td><td>229,862 229,862</td><td>​ ​</td><td>​ ​</td><td>40,812 40,812</td><td>​ ​</td></tr><tr><td>Decrease (increase) in unbilled revenue Decrease (increase) in unbilled revenue</td><td>​ ​</td><td>​ ​</td><td>( 7,871 ) ( 7,871 )</td><td>​ ​</td><td>​ ​</td><td>12,601 12,601</td><td>​ ​</td><td>​ ​</td><td>( 11,491 ) ( 11,491 )</td><td>​ ​</td></tr><tr><td>Increase (decrease) in accounts payable and other current liabilities Increase (decrease) in accounts payable and other current liabilities</td><td>​ ​</td><td> </td><td>( 3,138 ) ( 3,138 )</td><td>​ ​</td><td> </td><td>80,960 80,960</td><td>​ ​</td><td> </td><td>( 42,032 ) ( 42,032 )</td><td>​ ​</td></tr><tr><td>NET CASH PROVIDED BY OPERATING ACTIVITIES NET CASH PROVIDED BY OPERATING ACTIVITIES</td><td>​ ​</td><td> </td><td>692,462 692,462</td><td>​ ​</td><td> </td><td>736,334 736,334</td><td>​ ​</td><td> </td><td>480,376 480,376</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>CASH FLOWS FROM INVESTING ACTIVITIES: CASH FLOWS FROM INVESTING ACTIVITIES:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Purchases of marketable securities Purchases of marketable securities</td><td>​ ​</td><td> </td><td>( 1,430,733 ) ( 1,430,733 )</td><td>​ ​</td><td> </td><td>( 1,339,465 ) ( 1,339,465 )</td><td>​ ​</td><td> </td><td>( 1,834,403 ) ( 1,834,403 )</td><td>​ ​</td></tr><tr><td>Sales of marketable securities Sales of marketable securities</td><td>​ ​</td><td> </td><td>1,543,256 1,543,256</td><td>​ ​</td><td> </td><td>1,600,877 1,600,877</td><td>​ ​</td><td> </td><td>1,488,359 1,488,359</td><td>​ ​</td></tr><tr><td>Acquisition of property and equipment: Acquisition of property and equipment:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Aircraft and rotable spare parts Aircraft and rotable spare parts</td><td>​ ​</td><td> </td><td>( 265,854 ) ( 265,854 )</td><td>​ ​</td><td> </td><td>( 238,068 ) ( 238,068 )</td><td>​ ​</td><td> </td><td>( 632,460 ) ( 632,460 )</td><td>​ ​</td></tr><tr><td>Buildings and ground equipment Buildings and ground equipment</td><td>​ ​</td><td> </td><td>( 44,895 ) ( 44,895 )</td><td>​ ​</td><td> </td><td>( 13,258 ) ( 13,258 )</td><td>​ ​</td><td> </td><td>( 13,031 ) ( 13,031 )</td><td>​ ​</td></tr><tr><td>Proceeds from the sale of property and equipment Proceeds from the sale of property and equipment</td><td>​ ​</td><td> </td><td>5,154 5,154</td><td>​ ​</td><td> </td><td>15,879 15,879</td><td>​ ​</td><td> </td><td>16,983 16,983</td><td>​ ​</td></tr><tr><td>Deposits on aircraft Deposits on aircraft</td><td>​ ​</td><td>​ ​</td><td>( 17,535 ) ( 17,535 )</td><td>​ ​</td><td>​ ​</td><td>( 65,000 ) ( 65,000 )</td><td>​ ​</td><td>​ ​</td><td>( 37,100 ) ( 37,100 )</td><td>​ ​</td></tr><tr><td>Aircraft deposits applied towards acquired aircraft Aircraft deposits applied towards acquired aircraft</td><td>​ ​</td><td>​ ​</td><td>β€” β€”</td><td>​ ​</td><td>​ ​</td><td>11,649 11,649</td><td>​ ​</td><td>​ ​</td><td>138,383 138,383</td><td>​ ​</td></tr><tr><td>Decrease (increase) in investments and financing activities with third parties and other assets Decrease (increase) in investments and financing activities with third parties and other assets</td><td>​ ​</td><td> </td><td>( 18,020 ) ( 18,020 )</td><td>​ ​</td><td> </td><td>4,158 4,158</td><td>​ ​</td><td> </td><td>( 31,625 ) ( 31,625 )</td><td>​ ​</td></tr><tr><td>NET CASH USED IN INVESTING ACTIVITIES NET CASH USED IN INVESTING ACTIVITIES</td><td>​ ​</td><td> </td><td>( 228,627 ) ( 228,627 )</td><td>​ ​</td><td> </td><td>( 23,228 ) ( 23,228 )</td><td>​ ​</td><td> </td><td>( 904,894 ) ( 904,894 )</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>CASH FLOWS FROM FINANCING ACTIVITIES: CASH FLOWS FROM FINANCING ACTIVITIES:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Proceeds from issuance of long-term debt Proceeds from issuance of long-term debt</td><td>​ ​</td><td> </td><td>116,165 116,165</td><td>​ ​</td><td> </td><td>69,689 69,689</td><td>​ ​</td><td> </td><td>684,502 684,502</td><td>​ ​</td></tr><tr><td>Principal payments on long-term debt Principal payments on long-term debt</td><td>​ ​</td><td> </td><td>( 452,855 ) ( 452,855 )</td><td>​ ​</td><td> </td><td>( 447,604 ) ( 447,604 )</td><td>​ ​</td><td> </td><td>( 415,050 ) ( 415,050 )</td><td>​ ​</td></tr><tr><td>Payment of debt issuance cost Payment of debt issuance cost</td><td>​ ​</td><td>​ ​</td><td>( 670 ) ( 670 )</td><td>​ ​</td><td>​ ​</td><td>( 175 ) ( 175 )</td><td>​ ​</td><td>​ ​</td><td>( 2,178 ) ( 2,178 )</td><td>​ ​</td></tr><tr><td>Net proceeds from issuance of common stock Net proceeds from issuance of common stock</td><td>​ ​</td><td> </td><td>2,864 2,864</td><td>​ ​</td><td> </td><td>2,811 2,811</td><td>​ ​</td><td> </td><td>2,957 2,957</td><td>​ ​</td></tr><tr><td>Employee income tax paid on vested equity awards Employee income tax paid on vested equity awards</td><td>​ ​</td><td>​ ​</td><td>( 6,930 ) ( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>( 585 ) ( 585 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 ) ( 1,150 )</td><td>​ ​</td></tr><tr><td>Purchase of treasury stock and related excise tax Purchase of treasury stock and related excise tax</td><td>​ ​</td><td> </td><td>( 43,324 ) ( 43,324 )</td><td>​ ​</td><td> </td><td>( 291,949 ) ( 291,949 )</td><td>​ ​</td><td> </td><td>β€” β€”</td><td>​ ​</td></tr><tr><td>NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES</td><td>​ ​</td><td> </td><td>( 384,750 ) ( 384,750 )</td><td>​ ​</td><td> </td><td>( 667,813 ) ( 667,813 )</td><td>​ ​</td><td> </td><td>269,081 269,081</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Increase (decrease) in cash and cash equivalents Increase (decrease) in cash and cash equivalents</td><td>​ ​</td><td> </td><td>79,085 79,085</td><td>​ ​</td><td> </td><td>45,293 45,293</td><td>​ ​</td><td> </td><td>( 155,437 ) ( 155,437 )</td><td>​ ​</td></tr><tr><td>Cash and cash equivalents at beginning of period Cash and cash equivalents at beginning of period</td><td>​ ​</td><td> </td><td>148,277 148,277</td><td>​ ​</td><td> </td><td>102,984 102,984</td><td>​ ​</td><td> </td><td>258,421 258,421</td><td>​ ​</td></tr><tr><td>CASH AND CASH EQUIVALENTS AT END OF PERIOD CASH AND CASH EQUIVALENTS AT END OF PERIOD</td><td>​ ​</td><td>$ $</td><td>227,362 227,362</td><td>​ ​</td><td>$ $</td><td>148,277 148,277</td><td>​ ​</td><td>$ $</td><td>102,984 102,984</td><td>​ ​</td></tr></table>
table
383115
monetaryItemType
table: <entity> 383115 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:DepreciationDepletionAndAmortization
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Year Ended DecemberΒ 31,</td></tr><tr><td>​ ​</td><td></td><td>2024</td><td>​ ​</td><td>2023</td><td>​ ​</td><td>​ ​</td><td>2022</td><td></td></tr><tr><td>CASH FLOWS FROM OPERATING ACTIVITIES: CASH FLOWS FROM OPERATING ACTIVITIES:</td><td>​ ​</td><td>​ ​</td><td> </td><td> </td><td>​ ​</td><td> </td><td> </td><td>​ ​</td><td> </td><td>​ ​</td></tr><tr><td>Net income Net income</td><td>​ ​</td><td>$ $</td><td>322,962 322,962</td><td>​ ​</td><td>$ $</td><td>34,342 34,342</td><td>​ ​</td><td>$ $</td><td>72,953 72,953</td><td>​ ​</td></tr><tr><td>Adjustments to reconcile net income to net cash provided by operating activities: Adjustments to reconcile net income to net cash provided by operating activities:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Depreciation and amortization Depreciation and amortization</td><td>​ ​</td><td> </td><td>383,880 383,880</td><td>​ ​</td><td> </td><td>383,115 383,115</td><td>​ ​</td><td> </td><td>394,552 394,552</td><td>​ ​</td></tr><tr><td>Stock based compensation expense Stock based compensation expense</td><td>​ ​</td><td> </td><td>19,864 19,864</td><td>​ ​</td><td> </td><td>17,125 17,125</td><td>​ ​</td><td> </td><td>9,159 9,159</td><td>​ ​</td></tr><tr><td>Decrease in credit loss reserves Decrease in credit loss reserves</td><td>​ ​</td><td>​ ​</td><td>( 3,628 ) ( 3,628 )</td><td>​ ​</td><td>​ ​</td><td>( 185 ) ( 185 )</td><td>​ ​</td><td>​ ​</td><td>( 4,591 ) ( 4,591 )</td><td>​ ​</td></tr><tr><td>Gain on disposal of fixed assets Gain on disposal of fixed assets</td><td>​ ​</td><td>​ ​</td><td>( 8,245 ) ( 8,245 )</td><td>​ ​</td><td>​ ​</td><td>( 14,295 ) ( 14,295 )</td><td>​ ​</td><td>​ ​</td><td>( 7,948 ) ( 7,948 )</td><td>​ ​</td></tr><tr><td>Loss (gain) on investments in other companies Loss (gain) on investments in other companies</td><td>​ ​</td><td>​ ​</td><td>6,815 6,815</td><td>​ ​</td><td>​ ​</td><td>479 479</td><td>​ ​</td><td>​ ​</td><td>( 11,380 ) ( 11,380 )</td><td>​ ​</td></tr><tr><td>Net increase in deferred income taxes Net increase in deferred income taxes</td><td>​ ​</td><td> </td><td>100,368 100,368</td><td>​ ​</td><td> </td><td>539 539</td><td>​ ​</td><td> </td><td>23,825 23,825</td><td>​ ​</td></tr><tr><td>Impairment (gain) on assets held for sale Impairment (gain) on assets held for sale</td><td>​ ​</td><td>​ ​</td><td>( 4,157 ) ( 4,157 )</td><td>​ ​</td><td>​ ​</td><td>2,318 2,318</td><td>​ ​</td><td>​ ​</td><td>51,384 51,384</td><td>​ ​</td></tr><tr><td>Changes in operating assets and liabilities: Changes in operating assets and liabilities:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Decrease (increase) in receivables Decrease (increase) in receivables</td><td>​ ​</td><td> </td><td>( 41,171 ) ( 41,171 )</td><td>​ ​</td><td> </td><td>19,818 19,818</td><td>​ ​</td><td> </td><td>( 32,959 ) ( 32,959 )</td><td>​ ​</td></tr><tr><td>Decrease (increase) in income tax receivable Decrease (increase) in income tax receivable</td><td>​ ​</td><td> </td><td>( 7,504 ) ( 7,504 )</td><td>​ ​</td><td> </td><td>997 997</td><td>​ ​</td><td> </td><td>7,815 7,815</td><td>​ ​</td></tr><tr><td>Increase in inventories Increase in inventories</td><td>​ ​</td><td> </td><td>( 11,888 ) ( 11,888 )</td><td>​ ​</td><td> </td><td>( 3,905 ) ( 3,905 )</td><td>​ ​</td><td> </td><td>( 16,628 ) ( 16,628 )</td><td>​ ​</td></tr><tr><td>Decrease (increase) in other current assets Decrease (increase) in other current assets</td><td>​ ​</td><td> </td><td>( 13,813 ) ( 13,813 )</td><td>​ ​</td><td> </td><td>1,593 1,593</td><td>​ ​</td><td> </td><td>( 2,871 ) ( 2,871 )</td><td>​ ​</td></tr><tr><td>Decrease (increase) in operating lease right-of-use assets Decrease (increase) in operating lease right-of-use assets</td><td>​ ​</td><td>​ ​</td><td>( 1,004 ) ( 1,004 )</td><td>​ ​</td><td>​ ​</td><td>25,954 25,954</td><td>​ ​</td><td>​ ​</td><td>86,588 86,588</td><td>​ ​</td></tr><tr><td>Increase (decrease) in operating lease liabilities Increase (decrease) in operating lease liabilities</td><td>​ ​</td><td>​ ​</td><td>1,004 1,004</td><td>​ ​</td><td>​ ​</td><td>( 54,984 ) ( 54,984 )</td><td>​ ​</td><td>​ ​</td><td>( 76,812 ) ( 76,812 )</td><td>​ ​</td></tr><tr><td>Increase (decrease) in deferred revenue Increase (decrease) in deferred revenue</td><td>​ ​</td><td>​ ​</td><td>( 40,012 ) ( 40,012 )</td><td>​ ​</td><td>​ ​</td><td>229,862 229,862</td><td>​ ​</td><td>​ ​</td><td>40,812 40,812</td><td>​ ​</td></tr><tr><td>Decrease (increase) in unbilled revenue Decrease (increase) in unbilled revenue</td><td>​ ​</td><td>​ ​</td><td>( 7,871 ) ( 7,871 )</td><td>​ ​</td><td>​ ​</td><td>12,601 12,601</td><td>​ ​</td><td>​ ​</td><td>( 11,491 ) ( 11,491 )</td><td>​ ​</td></tr><tr><td>Increase (decrease) in accounts payable and other current liabilities Increase (decrease) in accounts payable and other current liabilities</td><td>​ ​</td><td> </td><td>( 3,138 ) ( 3,138 )</td><td>​ ​</td><td> </td><td>80,960 80,960</td><td>​ ​</td><td> </td><td>( 42,032 ) ( 42,032 )</td><td>​ ​</td></tr><tr><td>NET CASH PROVIDED BY OPERATING ACTIVITIES NET CASH PROVIDED BY OPERATING ACTIVITIES</td><td>​ ​</td><td> </td><td>692,462 692,462</td><td>​ ​</td><td> </td><td>736,334 736,334</td><td>​ ​</td><td> </td><td>480,376 480,376</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>CASH FLOWS FROM INVESTING ACTIVITIES: CASH FLOWS FROM INVESTING ACTIVITIES:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Purchases of marketable securities Purchases of marketable securities</td><td>​ ​</td><td> </td><td>( 1,430,733 ) ( 1,430,733 )</td><td>​ ​</td><td> </td><td>( 1,339,465 ) ( 1,339,465 )</td><td>​ ​</td><td> </td><td>( 1,834,403 ) ( 1,834,403 )</td><td>​ ​</td></tr><tr><td>Sales of marketable securities Sales of marketable securities</td><td>​ ​</td><td> </td><td>1,543,256 1,543,256</td><td>​ ​</td><td> </td><td>1,600,877 1,600,877</td><td>​ ​</td><td> </td><td>1,488,359 1,488,359</td><td>​ ​</td></tr><tr><td>Acquisition of property and equipment: Acquisition of property and equipment:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Aircraft and rotable spare parts Aircraft and rotable spare parts</td><td>​ ​</td><td> </td><td>( 265,854 ) ( 265,854 )</td><td>​ ​</td><td> </td><td>( 238,068 ) ( 238,068 )</td><td>​ ​</td><td> </td><td>( 632,460 ) ( 632,460 )</td><td>​ ​</td></tr><tr><td>Buildings and ground equipment Buildings and ground equipment</td><td>​ ​</td><td> </td><td>( 44,895 ) ( 44,895 )</td><td>​ ​</td><td> </td><td>( 13,258 ) ( 13,258 )</td><td>​ ​</td><td> </td><td>( 13,031 ) ( 13,031 )</td><td>​ ​</td></tr><tr><td>Proceeds from the sale of property and equipment Proceeds from the sale of property and equipment</td><td>​ ​</td><td> </td><td>5,154 5,154</td><td>​ ​</td><td> </td><td>15,879 15,879</td><td>​ ​</td><td> </td><td>16,983 16,983</td><td>​ ​</td></tr><tr><td>Deposits on aircraft Deposits on aircraft</td><td>​ ​</td><td>​ ​</td><td>( 17,535 ) ( 17,535 )</td><td>​ ​</td><td>​ ​</td><td>( 65,000 ) ( 65,000 )</td><td>​ ​</td><td>​ ​</td><td>( 37,100 ) ( 37,100 )</td><td>​ ​</td></tr><tr><td>Aircraft deposits applied towards acquired aircraft Aircraft deposits applied towards acquired aircraft</td><td>​ ​</td><td>​ ​</td><td>β€” β€”</td><td>​ ​</td><td>​ ​</td><td>11,649 11,649</td><td>​ ​</td><td>​ ​</td><td>138,383 138,383</td><td>​ ​</td></tr><tr><td>Decrease (increase) in investments and financing activities with third parties and other assets Decrease (increase) in investments and financing activities with third parties and other assets</td><td>​ ​</td><td> </td><td>( 18,020 ) ( 18,020 )</td><td>​ ​</td><td> </td><td>4,158 4,158</td><td>​ ​</td><td> </td><td>( 31,625 ) ( 31,625 )</td><td>​ ​</td></tr><tr><td>NET CASH USED IN INVESTING ACTIVITIES NET CASH USED IN INVESTING ACTIVITIES</td><td>​ ​</td><td> </td><td>( 228,627 ) ( 228,627 )</td><td>​ ​</td><td> </td><td>( 23,228 ) ( 23,228 )</td><td>​ ​</td><td> </td><td>( 904,894 ) ( 904,894 )</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>CASH FLOWS FROM FINANCING ACTIVITIES: CASH FLOWS FROM FINANCING ACTIVITIES:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Proceeds from issuance of long-term debt Proceeds from issuance of long-term debt</td><td>​ ​</td><td> </td><td>116,165 116,165</td><td>​ ​</td><td> </td><td>69,689 69,689</td><td>​ ​</td><td> </td><td>684,502 684,502</td><td>​ ​</td></tr><tr><td>Principal payments on long-term debt Principal payments on long-term debt</td><td>​ ​</td><td> </td><td>( 452,855 ) ( 452,855 )</td><td>​ ​</td><td> </td><td>( 447,604 ) ( 447,604 )</td><td>​ ​</td><td> </td><td>( 415,050 ) ( 415,050 )</td><td>​ ​</td></tr><tr><td>Payment of debt issuance cost Payment of debt issuance cost</td><td>​ ​</td><td>​ ​</td><td>( 670 ) ( 670 )</td><td>​ ​</td><td>​ ​</td><td>( 175 ) ( 175 )</td><td>​ ​</td><td>​ ​</td><td>( 2,178 ) ( 2,178 )</td><td>​ ​</td></tr><tr><td>Net proceeds from issuance of common stock Net proceeds from issuance of common stock</td><td>​ ​</td><td> </td><td>2,864 2,864</td><td>​ ​</td><td> </td><td>2,811 2,811</td><td>​ ​</td><td> </td><td>2,957 2,957</td><td>​ ​</td></tr><tr><td>Employee income tax paid on vested equity awards Employee income tax paid on vested equity awards</td><td>​ ​</td><td>​ ​</td><td>( 6,930 ) ( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>( 585 ) ( 585 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 ) ( 1,150 )</td><td>​ ​</td></tr><tr><td>Purchase of treasury stock and related excise tax Purchase of treasury stock and related excise tax</td><td>​ ​</td><td> </td><td>( 43,324 ) ( 43,324 )</td><td>​ ​</td><td> </td><td>( 291,949 ) ( 291,949 )</td><td>​ ​</td><td> </td><td>β€” β€”</td><td>​ ​</td></tr><tr><td>NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES</td><td>​ ​</td><td> </td><td>( 384,750 ) ( 384,750 )</td><td>​ ​</td><td> </td><td>( 667,813 ) ( 667,813 )</td><td>​ ​</td><td> </td><td>269,081 269,081</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Increase (decrease) in cash and cash equivalents Increase (decrease) in cash and cash equivalents</td><td>​ ​</td><td> </td><td>79,085 79,085</td><td>​ ​</td><td> </td><td>45,293 45,293</td><td>​ ​</td><td> </td><td>( 155,437 ) ( 155,437 )</td><td>​ ​</td></tr><tr><td>Cash and cash equivalents at beginning of period Cash and cash equivalents at beginning of period</td><td>​ ​</td><td> </td><td>148,277 148,277</td><td>​ ​</td><td> </td><td>102,984 102,984</td><td>​ ​</td><td> </td><td>258,421 258,421</td><td>​ ​</td></tr><tr><td>CASH AND CASH EQUIVALENTS AT END OF PERIOD CASH AND CASH EQUIVALENTS AT END OF PERIOD</td><td>​ ​</td><td>$ $</td><td>227,362 227,362</td><td>​ ​</td><td>$ $</td><td>148,277 148,277</td><td>​ ​</td><td>$ $</td><td>102,984 102,984</td><td>​ ​</td></tr></table>
table
394552
monetaryItemType
table: <entity> 394552 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:DepreciationDepletionAndAmortization
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Year Ended DecemberΒ 31,</td></tr><tr><td>​ ​</td><td></td><td>2024</td><td>​ ​</td><td>2023</td><td>​ ​</td><td>​ ​</td><td>2022</td><td></td></tr><tr><td>CASH FLOWS FROM OPERATING ACTIVITIES: CASH FLOWS FROM OPERATING ACTIVITIES:</td><td>​ ​</td><td>​ ​</td><td> </td><td> </td><td>​ ​</td><td> </td><td> </td><td>​ ​</td><td> </td><td>​ ​</td></tr><tr><td>Net income Net income</td><td>​ ​</td><td>$ $</td><td>322,962 322,962</td><td>​ ​</td><td>$ $</td><td>34,342 34,342</td><td>​ ​</td><td>$ $</td><td>72,953 72,953</td><td>​ ​</td></tr><tr><td>Adjustments to reconcile net income to net cash provided by operating activities: Adjustments to reconcile net income to net cash provided by operating activities:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Depreciation and amortization Depreciation and amortization</td><td>​ ​</td><td> </td><td>383,880 383,880</td><td>​ ​</td><td> </td><td>383,115 383,115</td><td>​ ​</td><td> </td><td>394,552 394,552</td><td>​ ​</td></tr><tr><td>Stock based compensation expense Stock based compensation expense</td><td>​ ​</td><td> </td><td>19,864 19,864</td><td>​ ​</td><td> </td><td>17,125 17,125</td><td>​ ​</td><td> </td><td>9,159 9,159</td><td>​ ​</td></tr><tr><td>Decrease in credit loss reserves Decrease in credit loss reserves</td><td>​ ​</td><td>​ ​</td><td>( 3,628 ) ( 3,628 )</td><td>​ ​</td><td>​ ​</td><td>( 185 ) ( 185 )</td><td>​ ​</td><td>​ ​</td><td>( 4,591 ) ( 4,591 )</td><td>​ ​</td></tr><tr><td>Gain on disposal of fixed assets Gain on disposal of fixed assets</td><td>​ ​</td><td>​ ​</td><td>( 8,245 ) ( 8,245 )</td><td>​ ​</td><td>​ ​</td><td>( 14,295 ) ( 14,295 )</td><td>​ ​</td><td>​ ​</td><td>( 7,948 ) ( 7,948 )</td><td>​ ​</td></tr><tr><td>Loss (gain) on investments in other companies Loss (gain) on investments in other companies</td><td>​ ​</td><td>​ ​</td><td>6,815 6,815</td><td>​ ​</td><td>​ ​</td><td>479 479</td><td>​ ​</td><td>​ ​</td><td>( 11,380 ) ( 11,380 )</td><td>​ ​</td></tr><tr><td>Net increase in deferred income taxes Net increase in deferred income taxes</td><td>​ ​</td><td> </td><td>100,368 100,368</td><td>​ ​</td><td> </td><td>539 539</td><td>​ ​</td><td> </td><td>23,825 23,825</td><td>​ ​</td></tr><tr><td>Impairment (gain) on assets held for sale Impairment (gain) on assets held for sale</td><td>​ ​</td><td>​ ​</td><td>( 4,157 ) ( 4,157 )</td><td>​ ​</td><td>​ ​</td><td>2,318 2,318</td><td>​ ​</td><td>​ ​</td><td>51,384 51,384</td><td>​ ​</td></tr><tr><td>Changes in operating assets and liabilities: Changes in operating assets and liabilities:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Decrease (increase) in receivables Decrease (increase) in receivables</td><td>​ ​</td><td> </td><td>( 41,171 ) ( 41,171 )</td><td>​ ​</td><td> </td><td>19,818 19,818</td><td>​ ​</td><td> </td><td>( 32,959 ) ( 32,959 )</td><td>​ ​</td></tr><tr><td>Decrease (increase) in income tax receivable Decrease (increase) in income tax receivable</td><td>​ ​</td><td> </td><td>( 7,504 ) ( 7,504 )</td><td>​ ​</td><td> </td><td>997 997</td><td>​ ​</td><td> </td><td>7,815 7,815</td><td>​ ​</td></tr><tr><td>Increase in inventories Increase in inventories</td><td>​ ​</td><td> </td><td>( 11,888 ) ( 11,888 )</td><td>​ ​</td><td> </td><td>( 3,905 ) ( 3,905 )</td><td>​ ​</td><td> </td><td>( 16,628 ) ( 16,628 )</td><td>​ ​</td></tr><tr><td>Decrease (increase) in other current assets Decrease (increase) in other current assets</td><td>​ ​</td><td> </td><td>( 13,813 ) ( 13,813 )</td><td>​ ​</td><td> </td><td>1,593 1,593</td><td>​ ​</td><td> </td><td>( 2,871 ) ( 2,871 )</td><td>​ ​</td></tr><tr><td>Decrease (increase) in operating lease right-of-use assets Decrease (increase) in operating lease right-of-use assets</td><td>​ ​</td><td>​ ​</td><td>( 1,004 ) ( 1,004 )</td><td>​ ​</td><td>​ ​</td><td>25,954 25,954</td><td>​ ​</td><td>​ ​</td><td>86,588 86,588</td><td>​ ​</td></tr><tr><td>Increase (decrease) in operating lease liabilities Increase (decrease) in operating lease liabilities</td><td>​ ​</td><td>​ ​</td><td>1,004 1,004</td><td>​ ​</td><td>​ ​</td><td>( 54,984 ) ( 54,984 )</td><td>​ ​</td><td>​ ​</td><td>( 76,812 ) ( 76,812 )</td><td>​ ​</td></tr><tr><td>Increase (decrease) in deferred revenue Increase (decrease) in deferred revenue</td><td>​ ​</td><td>​ ​</td><td>( 40,012 ) ( 40,012 )</td><td>​ ​</td><td>​ ​</td><td>229,862 229,862</td><td>​ ​</td><td>​ ​</td><td>40,812 40,812</td><td>​ ​</td></tr><tr><td>Decrease (increase) in unbilled revenue Decrease (increase) in unbilled revenue</td><td>​ ​</td><td>​ ​</td><td>( 7,871 ) ( 7,871 )</td><td>​ ​</td><td>​ ​</td><td>12,601 12,601</td><td>​ ​</td><td>​ ​</td><td>( 11,491 ) ( 11,491 )</td><td>​ ​</td></tr><tr><td>Increase (decrease) in accounts payable and other current liabilities Increase (decrease) in accounts payable and other current liabilities</td><td>​ ​</td><td> </td><td>( 3,138 ) ( 3,138 )</td><td>​ ​</td><td> </td><td>80,960 80,960</td><td>​ ​</td><td> </td><td>( 42,032 ) ( 42,032 )</td><td>​ ​</td></tr><tr><td>NET CASH PROVIDED BY OPERATING ACTIVITIES NET CASH PROVIDED BY OPERATING ACTIVITIES</td><td>​ ​</td><td> </td><td>692,462 692,462</td><td>​ ​</td><td> </td><td>736,334 736,334</td><td>​ ​</td><td> </td><td>480,376 480,376</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>CASH FLOWS FROM INVESTING ACTIVITIES: CASH FLOWS FROM INVESTING ACTIVITIES:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Purchases of marketable securities Purchases of marketable securities</td><td>​ ​</td><td> </td><td>( 1,430,733 ) ( 1,430,733 )</td><td>​ ​</td><td> </td><td>( 1,339,465 ) ( 1,339,465 )</td><td>​ ​</td><td> </td><td>( 1,834,403 ) ( 1,834,403 )</td><td>​ ​</td></tr><tr><td>Sales of marketable securities Sales of marketable securities</td><td>​ ​</td><td> </td><td>1,543,256 1,543,256</td><td>​ ​</td><td> </td><td>1,600,877 1,600,877</td><td>​ ​</td><td> </td><td>1,488,359 1,488,359</td><td>​ ​</td></tr><tr><td>Acquisition of property and equipment: Acquisition of property and equipment:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Aircraft and rotable spare parts Aircraft and rotable spare parts</td><td>​ ​</td><td> </td><td>( 265,854 ) ( 265,854 )</td><td>​ ​</td><td> </td><td>( 238,068 ) ( 238,068 )</td><td>​ ​</td><td> </td><td>( 632,460 ) ( 632,460 )</td><td>​ ​</td></tr><tr><td>Buildings and ground equipment Buildings and ground equipment</td><td>​ ​</td><td> </td><td>( 44,895 ) ( 44,895 )</td><td>​ ​</td><td> </td><td>( 13,258 ) ( 13,258 )</td><td>​ ​</td><td> </td><td>( 13,031 ) ( 13,031 )</td><td>​ ​</td></tr><tr><td>Proceeds from the sale of property and equipment Proceeds from the sale of property and equipment</td><td>​ ​</td><td> </td><td>5,154 5,154</td><td>​ ​</td><td> </td><td>15,879 15,879</td><td>​ ​</td><td> </td><td>16,983 16,983</td><td>​ ​</td></tr><tr><td>Deposits on aircraft Deposits on aircraft</td><td>​ ​</td><td>​ ​</td><td>( 17,535 ) ( 17,535 )</td><td>​ ​</td><td>​ ​</td><td>( 65,000 ) ( 65,000 )</td><td>​ ​</td><td>​ ​</td><td>( 37,100 ) ( 37,100 )</td><td>​ ​</td></tr><tr><td>Aircraft deposits applied towards acquired aircraft Aircraft deposits applied towards acquired aircraft</td><td>​ ​</td><td>​ ​</td><td>β€” β€”</td><td>​ ​</td><td>​ ​</td><td>11,649 11,649</td><td>​ ​</td><td>​ ​</td><td>138,383 138,383</td><td>​ ​</td></tr><tr><td>Decrease (increase) in investments and financing activities with third parties and other assets Decrease (increase) in investments and financing activities with third parties and other assets</td><td>​ ​</td><td> </td><td>( 18,020 ) ( 18,020 )</td><td>​ ​</td><td> </td><td>4,158 4,158</td><td>​ ​</td><td> </td><td>( 31,625 ) ( 31,625 )</td><td>​ ​</td></tr><tr><td>NET CASH USED IN INVESTING ACTIVITIES NET CASH USED IN INVESTING ACTIVITIES</td><td>​ ​</td><td> </td><td>( 228,627 ) ( 228,627 )</td><td>​ ​</td><td> </td><td>( 23,228 ) ( 23,228 )</td><td>​ ​</td><td> </td><td>( 904,894 ) ( 904,894 )</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>CASH FLOWS FROM FINANCING ACTIVITIES: CASH FLOWS FROM FINANCING ACTIVITIES:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Proceeds from issuance of long-term debt Proceeds from issuance of long-term debt</td><td>​ ​</td><td> </td><td>116,165 116,165</td><td>​ ​</td><td> </td><td>69,689 69,689</td><td>​ ​</td><td> </td><td>684,502 684,502</td><td>​ ​</td></tr><tr><td>Principal payments on long-term debt Principal payments on long-term debt</td><td>​ ​</td><td> </td><td>( 452,855 ) ( 452,855 )</td><td>​ ​</td><td> </td><td>( 447,604 ) ( 447,604 )</td><td>​ ​</td><td> </td><td>( 415,050 ) ( 415,050 )</td><td>​ ​</td></tr><tr><td>Payment of debt issuance cost Payment of debt issuance cost</td><td>​ ​</td><td>​ ​</td><td>( 670 ) ( 670 )</td><td>​ ​</td><td>​ ​</td><td>( 175 ) ( 175 )</td><td>​ ​</td><td>​ ​</td><td>( 2,178 ) ( 2,178 )</td><td>​ ​</td></tr><tr><td>Net proceeds from issuance of common stock Net proceeds from issuance of common stock</td><td>​ ​</td><td> </td><td>2,864 2,864</td><td>​ ​</td><td> </td><td>2,811 2,811</td><td>​ ​</td><td> </td><td>2,957 2,957</td><td>​ ​</td></tr><tr><td>Employee income tax paid on vested equity awards Employee income tax paid on vested equity awards</td><td>​ ​</td><td>​ ​</td><td>( 6,930 ) ( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>( 585 ) ( 585 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 ) ( 1,150 )</td><td>​ ​</td></tr><tr><td>Purchase of treasury stock and related excise tax Purchase of treasury stock and related excise tax</td><td>​ ​</td><td> </td><td>( 43,324 ) ( 43,324 )</td><td>​ ​</td><td> </td><td>( 291,949 ) ( 291,949 )</td><td>​ ​</td><td> </td><td>β€” β€”</td><td>​ ​</td></tr><tr><td>NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES</td><td>​ ​</td><td> </td><td>( 384,750 ) ( 384,750 )</td><td>​ ​</td><td> </td><td>( 667,813 ) ( 667,813 )</td><td>​ ​</td><td> </td><td>269,081 269,081</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Increase (decrease) in cash and cash equivalents Increase (decrease) in cash and cash equivalents</td><td>​ ​</td><td> </td><td>79,085 79,085</td><td>​ ​</td><td> </td><td>45,293 45,293</td><td>​ ​</td><td> </td><td>( 155,437 ) ( 155,437 )</td><td>​ ​</td></tr><tr><td>Cash and cash equivalents at beginning of period Cash and cash equivalents at beginning of period</td><td>​ ​</td><td> </td><td>148,277 148,277</td><td>​ ​</td><td> </td><td>102,984 102,984</td><td>​ ​</td><td> </td><td>258,421 258,421</td><td>​ ​</td></tr><tr><td>CASH AND CASH EQUIVALENTS AT END OF PERIOD CASH AND CASH EQUIVALENTS AT END OF PERIOD</td><td>​ ​</td><td>$ $</td><td>227,362 227,362</td><td>​ ​</td><td>$ $</td><td>148,277 148,277</td><td>​ ​</td><td>$ $</td><td>102,984 102,984</td><td>​ ​</td></tr></table>
table
19864
monetaryItemType
table: <entity> 19864 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:ShareBasedCompensation
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Year Ended DecemberΒ 31,</td></tr><tr><td>​ ​</td><td></td><td>2024</td><td>​ ​</td><td>2023</td><td>​ ​</td><td>​ ​</td><td>2022</td><td></td></tr><tr><td>CASH FLOWS FROM OPERATING ACTIVITIES: CASH FLOWS FROM OPERATING ACTIVITIES:</td><td>​ ​</td><td>​ ​</td><td> </td><td> </td><td>​ ​</td><td> </td><td> </td><td>​ ​</td><td> </td><td>​ ​</td></tr><tr><td>Net income Net income</td><td>​ ​</td><td>$ $</td><td>322,962 322,962</td><td>​ ​</td><td>$ $</td><td>34,342 34,342</td><td>​ ​</td><td>$ $</td><td>72,953 72,953</td><td>​ ​</td></tr><tr><td>Adjustments to reconcile net income to net cash provided by operating activities: Adjustments to reconcile net income to net cash provided by operating activities:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Depreciation and amortization Depreciation and amortization</td><td>​ ​</td><td> </td><td>383,880 383,880</td><td>​ ​</td><td> </td><td>383,115 383,115</td><td>​ ​</td><td> </td><td>394,552 394,552</td><td>​ ​</td></tr><tr><td>Stock based compensation expense Stock based compensation expense</td><td>​ ​</td><td> </td><td>19,864 19,864</td><td>​ ​</td><td> </td><td>17,125 17,125</td><td>​ ​</td><td> </td><td>9,159 9,159</td><td>​ ​</td></tr><tr><td>Decrease in credit loss reserves Decrease in credit loss reserves</td><td>​ ​</td><td>​ ​</td><td>( 3,628 ) ( 3,628 )</td><td>​ ​</td><td>​ ​</td><td>( 185 ) ( 185 )</td><td>​ ​</td><td>​ ​</td><td>( 4,591 ) ( 4,591 )</td><td>​ ​</td></tr><tr><td>Gain on disposal of fixed assets Gain on disposal of fixed assets</td><td>​ ​</td><td>​ ​</td><td>( 8,245 ) ( 8,245 )</td><td>​ ​</td><td>​ ​</td><td>( 14,295 ) ( 14,295 )</td><td>​ ​</td><td>​ ​</td><td>( 7,948 ) ( 7,948 )</td><td>​ ​</td></tr><tr><td>Loss (gain) on investments in other companies Loss (gain) on investments in other companies</td><td>​ ​</td><td>​ ​</td><td>6,815 6,815</td><td>​ ​</td><td>​ ​</td><td>479 479</td><td>​ ​</td><td>​ ​</td><td>( 11,380 ) ( 11,380 )</td><td>​ ​</td></tr><tr><td>Net increase in deferred income taxes Net increase in deferred income taxes</td><td>​ ​</td><td> </td><td>100,368 100,368</td><td>​ ​</td><td> </td><td>539 539</td><td>​ ​</td><td> </td><td>23,825 23,825</td><td>​ ​</td></tr><tr><td>Impairment (gain) on assets held for sale Impairment (gain) on assets held for sale</td><td>​ ​</td><td>​ ​</td><td>( 4,157 ) ( 4,157 )</td><td>​ ​</td><td>​ ​</td><td>2,318 2,318</td><td>​ ​</td><td>​ ​</td><td>51,384 51,384</td><td>​ ​</td></tr><tr><td>Changes in operating assets and liabilities: Changes in operating assets and liabilities:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Decrease (increase) in receivables Decrease (increase) in receivables</td><td>​ ​</td><td> </td><td>( 41,171 ) ( 41,171 )</td><td>​ ​</td><td> </td><td>19,818 19,818</td><td>​ ​</td><td> </td><td>( 32,959 ) ( 32,959 )</td><td>​ ​</td></tr><tr><td>Decrease (increase) in income tax receivable Decrease (increase) in income tax receivable</td><td>​ ​</td><td> </td><td>( 7,504 ) ( 7,504 )</td><td>​ ​</td><td> </td><td>997 997</td><td>​ ​</td><td> </td><td>7,815 7,815</td><td>​ ​</td></tr><tr><td>Increase in inventories Increase in inventories</td><td>​ ​</td><td> </td><td>( 11,888 ) ( 11,888 )</td><td>​ ​</td><td> </td><td>( 3,905 ) ( 3,905 )</td><td>​ ​</td><td> </td><td>( 16,628 ) ( 16,628 )</td><td>​ ​</td></tr><tr><td>Decrease (increase) in other current assets Decrease (increase) in other current assets</td><td>​ ​</td><td> </td><td>( 13,813 ) ( 13,813 )</td><td>​ ​</td><td> </td><td>1,593 1,593</td><td>​ ​</td><td> </td><td>( 2,871 ) ( 2,871 )</td><td>​ ​</td></tr><tr><td>Decrease (increase) in operating lease right-of-use assets Decrease (increase) in operating lease right-of-use assets</td><td>​ ​</td><td>​ ​</td><td>( 1,004 ) ( 1,004 )</td><td>​ ​</td><td>​ ​</td><td>25,954 25,954</td><td>​ ​</td><td>​ ​</td><td>86,588 86,588</td><td>​ ​</td></tr><tr><td>Increase (decrease) in operating lease liabilities Increase (decrease) in operating lease liabilities</td><td>​ ​</td><td>​ ​</td><td>1,004 1,004</td><td>​ ​</td><td>​ ​</td><td>( 54,984 ) ( 54,984 )</td><td>​ ​</td><td>​ ​</td><td>( 76,812 ) ( 76,812 )</td><td>​ ​</td></tr><tr><td>Increase (decrease) in deferred revenue Increase (decrease) in deferred revenue</td><td>​ ​</td><td>​ ​</td><td>( 40,012 ) ( 40,012 )</td><td>​ ​</td><td>​ ​</td><td>229,862 229,862</td><td>​ ​</td><td>​ ​</td><td>40,812 40,812</td><td>​ ​</td></tr><tr><td>Decrease (increase) in unbilled revenue Decrease (increase) in unbilled revenue</td><td>​ ​</td><td>​ ​</td><td>( 7,871 ) ( 7,871 )</td><td>​ ​</td><td>​ ​</td><td>12,601 12,601</td><td>​ ​</td><td>​ ​</td><td>( 11,491 ) ( 11,491 )</td><td>​ ​</td></tr><tr><td>Increase (decrease) in accounts payable and other current liabilities Increase (decrease) in accounts payable and other current liabilities</td><td>​ ​</td><td> </td><td>( 3,138 ) ( 3,138 )</td><td>​ ​</td><td> </td><td>80,960 80,960</td><td>​ ​</td><td> </td><td>( 42,032 ) ( 42,032 )</td><td>​ ​</td></tr><tr><td>NET CASH PROVIDED BY OPERATING ACTIVITIES NET CASH PROVIDED BY OPERATING ACTIVITIES</td><td>​ ​</td><td> </td><td>692,462 692,462</td><td>​ ​</td><td> </td><td>736,334 736,334</td><td>​ ​</td><td> </td><td>480,376 480,376</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>CASH FLOWS FROM INVESTING ACTIVITIES: CASH FLOWS FROM INVESTING ACTIVITIES:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Purchases of marketable securities Purchases of marketable securities</td><td>​ ​</td><td> </td><td>( 1,430,733 ) ( 1,430,733 )</td><td>​ ​</td><td> </td><td>( 1,339,465 ) ( 1,339,465 )</td><td>​ ​</td><td> </td><td>( 1,834,403 ) ( 1,834,403 )</td><td>​ ​</td></tr><tr><td>Sales of marketable securities Sales of marketable securities</td><td>​ ​</td><td> </td><td>1,543,256 1,543,256</td><td>​ ​</td><td> </td><td>1,600,877 1,600,877</td><td>​ ​</td><td> </td><td>1,488,359 1,488,359</td><td>​ ​</td></tr><tr><td>Acquisition of property and equipment: Acquisition of property and equipment:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Aircraft and rotable spare parts Aircraft and rotable spare parts</td><td>​ ​</td><td> </td><td>( 265,854 ) ( 265,854 )</td><td>​ ​</td><td> </td><td>( 238,068 ) ( 238,068 )</td><td>​ ​</td><td> </td><td>( 632,460 ) ( 632,460 )</td><td>​ ​</td></tr><tr><td>Buildings and ground equipment Buildings and ground equipment</td><td>​ ​</td><td> </td><td>( 44,895 ) ( 44,895 )</td><td>​ ​</td><td> </td><td>( 13,258 ) ( 13,258 )</td><td>​ ​</td><td> </td><td>( 13,031 ) ( 13,031 )</td><td>​ ​</td></tr><tr><td>Proceeds from the sale of property and equipment Proceeds from the sale of property and equipment</td><td>​ ​</td><td> </td><td>5,154 5,154</td><td>​ ​</td><td> </td><td>15,879 15,879</td><td>​ ​</td><td> </td><td>16,983 16,983</td><td>​ ​</td></tr><tr><td>Deposits on aircraft Deposits on aircraft</td><td>​ ​</td><td>​ ​</td><td>( 17,535 ) ( 17,535 )</td><td>​ ​</td><td>​ ​</td><td>( 65,000 ) ( 65,000 )</td><td>​ ​</td><td>​ ​</td><td>( 37,100 ) ( 37,100 )</td><td>​ ​</td></tr><tr><td>Aircraft deposits applied towards acquired aircraft Aircraft deposits applied towards acquired aircraft</td><td>​ ​</td><td>​ ​</td><td>β€” β€”</td><td>​ ​</td><td>​ ​</td><td>11,649 11,649</td><td>​ ​</td><td>​ ​</td><td>138,383 138,383</td><td>​ ​</td></tr><tr><td>Decrease (increase) in investments and financing activities with third parties and other assets Decrease (increase) in investments and financing activities with third parties and other assets</td><td>​ ​</td><td> </td><td>( 18,020 ) ( 18,020 )</td><td>​ ​</td><td> </td><td>4,158 4,158</td><td>​ ​</td><td> </td><td>( 31,625 ) ( 31,625 )</td><td>​ ​</td></tr><tr><td>NET CASH USED IN INVESTING ACTIVITIES NET CASH USED IN INVESTING ACTIVITIES</td><td>​ ​</td><td> </td><td>( 228,627 ) ( 228,627 )</td><td>​ ​</td><td> </td><td>( 23,228 ) ( 23,228 )</td><td>​ ​</td><td> </td><td>( 904,894 ) ( 904,894 )</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>CASH FLOWS FROM FINANCING ACTIVITIES: CASH FLOWS FROM FINANCING ACTIVITIES:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Proceeds from issuance of long-term debt Proceeds from issuance of long-term debt</td><td>​ ​</td><td> </td><td>116,165 116,165</td><td>​ ​</td><td> </td><td>69,689 69,689</td><td>​ ​</td><td> </td><td>684,502 684,502</td><td>​ ​</td></tr><tr><td>Principal payments on long-term debt Principal payments on long-term debt</td><td>​ ​</td><td> </td><td>( 452,855 ) ( 452,855 )</td><td>​ ​</td><td> </td><td>( 447,604 ) ( 447,604 )</td><td>​ ​</td><td> </td><td>( 415,050 ) ( 415,050 )</td><td>​ ​</td></tr><tr><td>Payment of debt issuance cost Payment of debt issuance cost</td><td>​ ​</td><td>​ ​</td><td>( 670 ) ( 670 )</td><td>​ ​</td><td>​ ​</td><td>( 175 ) ( 175 )</td><td>​ ​</td><td>​ ​</td><td>( 2,178 ) ( 2,178 )</td><td>​ ​</td></tr><tr><td>Net proceeds from issuance of common stock Net proceeds from issuance of common stock</td><td>​ ​</td><td> </td><td>2,864 2,864</td><td>​ ​</td><td> </td><td>2,811 2,811</td><td>​ ​</td><td> </td><td>2,957 2,957</td><td>​ ​</td></tr><tr><td>Employee income tax paid on vested equity awards Employee income tax paid on vested equity awards</td><td>​ ​</td><td>​ ​</td><td>( 6,930 ) ( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>( 585 ) ( 585 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 ) ( 1,150 )</td><td>​ ​</td></tr><tr><td>Purchase of treasury stock and related excise tax Purchase of treasury stock and related excise tax</td><td>​ ​</td><td> </td><td>( 43,324 ) ( 43,324 )</td><td>​ ​</td><td> </td><td>( 291,949 ) ( 291,949 )</td><td>​ ​</td><td> </td><td>β€” β€”</td><td>​ ​</td></tr><tr><td>NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES</td><td>​ ​</td><td> </td><td>( 384,750 ) ( 384,750 )</td><td>​ ​</td><td> </td><td>( 667,813 ) ( 667,813 )</td><td>​ ​</td><td> </td><td>269,081 269,081</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Increase (decrease) in cash and cash equivalents Increase (decrease) in cash and cash equivalents</td><td>​ ​</td><td> </td><td>79,085 79,085</td><td>​ ​</td><td> </td><td>45,293 45,293</td><td>​ ​</td><td> </td><td>( 155,437 ) ( 155,437 )</td><td>​ ​</td></tr><tr><td>Cash and cash equivalents at beginning of period Cash and cash equivalents at beginning of period</td><td>​ ​</td><td> </td><td>148,277 148,277</td><td>​ ​</td><td> </td><td>102,984 102,984</td><td>​ ​</td><td> </td><td>258,421 258,421</td><td>​ ​</td></tr><tr><td>CASH AND CASH EQUIVALENTS AT END OF PERIOD CASH AND CASH EQUIVALENTS AT END OF PERIOD</td><td>​ ​</td><td>$ $</td><td>227,362 227,362</td><td>​ ​</td><td>$ $</td><td>148,277 148,277</td><td>​ ​</td><td>$ $</td><td>102,984 102,984</td><td>​ ​</td></tr></table>
table
17125
monetaryItemType
table: <entity> 17125 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:ShareBasedCompensation
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Year Ended DecemberΒ 31,</td></tr><tr><td>​ ​</td><td></td><td>2024</td><td>​ ​</td><td>2023</td><td>​ ​</td><td>​ ​</td><td>2022</td><td></td></tr><tr><td>CASH FLOWS FROM OPERATING ACTIVITIES: CASH FLOWS FROM OPERATING ACTIVITIES:</td><td>​ ​</td><td>​ ​</td><td> </td><td> </td><td>​ ​</td><td> </td><td> </td><td>​ ​</td><td> </td><td>​ ​</td></tr><tr><td>Net income Net income</td><td>​ ​</td><td>$ $</td><td>322,962 322,962</td><td>​ ​</td><td>$ $</td><td>34,342 34,342</td><td>​ ​</td><td>$ $</td><td>72,953 72,953</td><td>​ ​</td></tr><tr><td>Adjustments to reconcile net income to net cash provided by operating activities: Adjustments to reconcile net income to net cash provided by operating activities:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Depreciation and amortization Depreciation and amortization</td><td>​ ​</td><td> </td><td>383,880 383,880</td><td>​ ​</td><td> </td><td>383,115 383,115</td><td>​ ​</td><td> </td><td>394,552 394,552</td><td>​ ​</td></tr><tr><td>Stock based compensation expense Stock based compensation expense</td><td>​ ​</td><td> </td><td>19,864 19,864</td><td>​ ​</td><td> </td><td>17,125 17,125</td><td>​ ​</td><td> </td><td>9,159 9,159</td><td>​ ​</td></tr><tr><td>Decrease in credit loss reserves Decrease in credit loss reserves</td><td>​ ​</td><td>​ ​</td><td>( 3,628 ) ( 3,628 )</td><td>​ ​</td><td>​ ​</td><td>( 185 ) ( 185 )</td><td>​ ​</td><td>​ ​</td><td>( 4,591 ) ( 4,591 )</td><td>​ ​</td></tr><tr><td>Gain on disposal of fixed assets Gain on disposal of fixed assets</td><td>​ ​</td><td>​ ​</td><td>( 8,245 ) ( 8,245 )</td><td>​ ​</td><td>​ ​</td><td>( 14,295 ) ( 14,295 )</td><td>​ ​</td><td>​ ​</td><td>( 7,948 ) ( 7,948 )</td><td>​ ​</td></tr><tr><td>Loss (gain) on investments in other companies Loss (gain) on investments in other companies</td><td>​ ​</td><td>​ ​</td><td>6,815 6,815</td><td>​ ​</td><td>​ ​</td><td>479 479</td><td>​ ​</td><td>​ ​</td><td>( 11,380 ) ( 11,380 )</td><td>​ ​</td></tr><tr><td>Net increase in deferred income taxes Net increase in deferred income taxes</td><td>​ ​</td><td> </td><td>100,368 100,368</td><td>​ ​</td><td> </td><td>539 539</td><td>​ ​</td><td> </td><td>23,825 23,825</td><td>​ ​</td></tr><tr><td>Impairment (gain) on assets held for sale Impairment (gain) on assets held for sale</td><td>​ ​</td><td>​ ​</td><td>( 4,157 ) ( 4,157 )</td><td>​ ​</td><td>​ ​</td><td>2,318 2,318</td><td>​ ​</td><td>​ ​</td><td>51,384 51,384</td><td>​ ​</td></tr><tr><td>Changes in operating assets and liabilities: Changes in operating assets and liabilities:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Decrease (increase) in receivables Decrease (increase) in receivables</td><td>​ ​</td><td> </td><td>( 41,171 ) ( 41,171 )</td><td>​ ​</td><td> </td><td>19,818 19,818</td><td>​ ​</td><td> </td><td>( 32,959 ) ( 32,959 )</td><td>​ ​</td></tr><tr><td>Decrease (increase) in income tax receivable Decrease (increase) in income tax receivable</td><td>​ ​</td><td> </td><td>( 7,504 ) ( 7,504 )</td><td>​ ​</td><td> </td><td>997 997</td><td>​ ​</td><td> </td><td>7,815 7,815</td><td>​ ​</td></tr><tr><td>Increase in inventories Increase in inventories</td><td>​ ​</td><td> </td><td>( 11,888 ) ( 11,888 )</td><td>​ ​</td><td> </td><td>( 3,905 ) ( 3,905 )</td><td>​ ​</td><td> </td><td>( 16,628 ) ( 16,628 )</td><td>​ ​</td></tr><tr><td>Decrease (increase) in other current assets Decrease (increase) in other current assets</td><td>​ ​</td><td> </td><td>( 13,813 ) ( 13,813 )</td><td>​ ​</td><td> </td><td>1,593 1,593</td><td>​ ​</td><td> </td><td>( 2,871 ) ( 2,871 )</td><td>​ ​</td></tr><tr><td>Decrease (increase) in operating lease right-of-use assets Decrease (increase) in operating lease right-of-use assets</td><td>​ ​</td><td>​ ​</td><td>( 1,004 ) ( 1,004 )</td><td>​ ​</td><td>​ ​</td><td>25,954 25,954</td><td>​ ​</td><td>​ ​</td><td>86,588 86,588</td><td>​ ​</td></tr><tr><td>Increase (decrease) in operating lease liabilities Increase (decrease) in operating lease liabilities</td><td>​ ​</td><td>​ ​</td><td>1,004 1,004</td><td>​ ​</td><td>​ ​</td><td>( 54,984 ) ( 54,984 )</td><td>​ ​</td><td>​ ​</td><td>( 76,812 ) ( 76,812 )</td><td>​ ​</td></tr><tr><td>Increase (decrease) in deferred revenue Increase (decrease) in deferred revenue</td><td>​ ​</td><td>​ ​</td><td>( 40,012 ) ( 40,012 )</td><td>​ ​</td><td>​ ​</td><td>229,862 229,862</td><td>​ ​</td><td>​ ​</td><td>40,812 40,812</td><td>​ ​</td></tr><tr><td>Decrease (increase) in unbilled revenue Decrease (increase) in unbilled revenue</td><td>​ ​</td><td>​ ​</td><td>( 7,871 ) ( 7,871 )</td><td>​ ​</td><td>​ ​</td><td>12,601 12,601</td><td>​ ​</td><td>​ ​</td><td>( 11,491 ) ( 11,491 )</td><td>​ ​</td></tr><tr><td>Increase (decrease) in accounts payable and other current liabilities Increase (decrease) in accounts payable and other current liabilities</td><td>​ ​</td><td> </td><td>( 3,138 ) ( 3,138 )</td><td>​ ​</td><td> </td><td>80,960 80,960</td><td>​ ​</td><td> </td><td>( 42,032 ) ( 42,032 )</td><td>​ ​</td></tr><tr><td>NET CASH PROVIDED BY OPERATING ACTIVITIES NET CASH PROVIDED BY OPERATING ACTIVITIES</td><td>​ ​</td><td> </td><td>692,462 692,462</td><td>​ ​</td><td> </td><td>736,334 736,334</td><td>​ ​</td><td> </td><td>480,376 480,376</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>CASH FLOWS FROM INVESTING ACTIVITIES: CASH FLOWS FROM INVESTING ACTIVITIES:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Purchases of marketable securities Purchases of marketable securities</td><td>​ ​</td><td> </td><td>( 1,430,733 ) ( 1,430,733 )</td><td>​ ​</td><td> </td><td>( 1,339,465 ) ( 1,339,465 )</td><td>​ ​</td><td> </td><td>( 1,834,403 ) ( 1,834,403 )</td><td>​ ​</td></tr><tr><td>Sales of marketable securities Sales of marketable securities</td><td>​ ​</td><td> </td><td>1,543,256 1,543,256</td><td>​ ​</td><td> </td><td>1,600,877 1,600,877</td><td>​ ​</td><td> </td><td>1,488,359 1,488,359</td><td>​ ​</td></tr><tr><td>Acquisition of property and equipment: Acquisition of property and equipment:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Aircraft and rotable spare parts Aircraft and rotable spare parts</td><td>​ ​</td><td> </td><td>( 265,854 ) ( 265,854 )</td><td>​ ​</td><td> </td><td>( 238,068 ) ( 238,068 )</td><td>​ ​</td><td> </td><td>( 632,460 ) ( 632,460 )</td><td>​ ​</td></tr><tr><td>Buildings and ground equipment Buildings and ground equipment</td><td>​ ​</td><td> </td><td>( 44,895 ) ( 44,895 )</td><td>​ ​</td><td> </td><td>( 13,258 ) ( 13,258 )</td><td>​ ​</td><td> </td><td>( 13,031 ) ( 13,031 )</td><td>​ ​</td></tr><tr><td>Proceeds from the sale of property and equipment Proceeds from the sale of property and equipment</td><td>​ ​</td><td> </td><td>5,154 5,154</td><td>​ ​</td><td> </td><td>15,879 15,879</td><td>​ ​</td><td> </td><td>16,983 16,983</td><td>​ ​</td></tr><tr><td>Deposits on aircraft Deposits on aircraft</td><td>​ ​</td><td>​ ​</td><td>( 17,535 ) ( 17,535 )</td><td>​ ​</td><td>​ ​</td><td>( 65,000 ) ( 65,000 )</td><td>​ ​</td><td>​ ​</td><td>( 37,100 ) ( 37,100 )</td><td>​ ​</td></tr><tr><td>Aircraft deposits applied towards acquired aircraft Aircraft deposits applied towards acquired aircraft</td><td>​ ​</td><td>​ ​</td><td>β€” β€”</td><td>​ ​</td><td>​ ​</td><td>11,649 11,649</td><td>​ ​</td><td>​ ​</td><td>138,383 138,383</td><td>​ ​</td></tr><tr><td>Decrease (increase) in investments and financing activities with third parties and other assets Decrease (increase) in investments and financing activities with third parties and other assets</td><td>​ ​</td><td> </td><td>( 18,020 ) ( 18,020 )</td><td>​ ​</td><td> </td><td>4,158 4,158</td><td>​ ​</td><td> </td><td>( 31,625 ) ( 31,625 )</td><td>​ ​</td></tr><tr><td>NET CASH USED IN INVESTING ACTIVITIES NET CASH USED IN INVESTING ACTIVITIES</td><td>​ ​</td><td> </td><td>( 228,627 ) ( 228,627 )</td><td>​ ​</td><td> </td><td>( 23,228 ) ( 23,228 )</td><td>​ ​</td><td> </td><td>( 904,894 ) ( 904,894 )</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>CASH FLOWS FROM FINANCING ACTIVITIES: CASH FLOWS FROM FINANCING ACTIVITIES:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Proceeds from issuance of long-term debt Proceeds from issuance of long-term debt</td><td>​ ​</td><td> </td><td>116,165 116,165</td><td>​ ​</td><td> </td><td>69,689 69,689</td><td>​ ​</td><td> </td><td>684,502 684,502</td><td>​ ​</td></tr><tr><td>Principal payments on long-term debt Principal payments on long-term debt</td><td>​ ​</td><td> </td><td>( 452,855 ) ( 452,855 )</td><td>​ ​</td><td> </td><td>( 447,604 ) ( 447,604 )</td><td>​ ​</td><td> </td><td>( 415,050 ) ( 415,050 )</td><td>​ ​</td></tr><tr><td>Payment of debt issuance cost Payment of debt issuance cost</td><td>​ ​</td><td>​ ​</td><td>( 670 ) ( 670 )</td><td>​ ​</td><td>​ ​</td><td>( 175 ) ( 175 )</td><td>​ ​</td><td>​ ​</td><td>( 2,178 ) ( 2,178 )</td><td>​ ​</td></tr><tr><td>Net proceeds from issuance of common stock Net proceeds from issuance of common stock</td><td>​ ​</td><td> </td><td>2,864 2,864</td><td>​ ​</td><td> </td><td>2,811 2,811</td><td>​ ​</td><td> </td><td>2,957 2,957</td><td>​ ​</td></tr><tr><td>Employee income tax paid on vested equity awards Employee income tax paid on vested equity awards</td><td>​ ​</td><td>​ ​</td><td>( 6,930 ) ( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>( 585 ) ( 585 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 ) ( 1,150 )</td><td>​ ​</td></tr><tr><td>Purchase of treasury stock and related excise tax Purchase of treasury stock and related excise tax</td><td>​ ​</td><td> </td><td>( 43,324 ) ( 43,324 )</td><td>​ ​</td><td> </td><td>( 291,949 ) ( 291,949 )</td><td>​ ​</td><td> </td><td>β€” β€”</td><td>​ ​</td></tr><tr><td>NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES</td><td>​ ​</td><td> </td><td>( 384,750 ) ( 384,750 )</td><td>​ ​</td><td> </td><td>( 667,813 ) ( 667,813 )</td><td>​ ​</td><td> </td><td>269,081 269,081</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Increase (decrease) in cash and cash equivalents Increase (decrease) in cash and cash equivalents</td><td>​ ​</td><td> </td><td>79,085 79,085</td><td>​ ​</td><td> </td><td>45,293 45,293</td><td>​ ​</td><td> </td><td>( 155,437 ) ( 155,437 )</td><td>​ ​</td></tr><tr><td>Cash and cash equivalents at beginning of period Cash and cash equivalents at beginning of period</td><td>​ ​</td><td> </td><td>148,277 148,277</td><td>​ ​</td><td> </td><td>102,984 102,984</td><td>​ ​</td><td> </td><td>258,421 258,421</td><td>​ ​</td></tr><tr><td>CASH AND CASH EQUIVALENTS AT END OF PERIOD CASH AND CASH EQUIVALENTS AT END OF PERIOD</td><td>​ ​</td><td>$ $</td><td>227,362 227,362</td><td>​ ​</td><td>$ $</td><td>148,277 148,277</td><td>​ ​</td><td>$ $</td><td>102,984 102,984</td><td>​ ​</td></tr></table>
table
9159
monetaryItemType
table: <entity> 9159 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:ShareBasedCompensation
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Year Ended DecemberΒ 31,</td></tr><tr><td>​ ​</td><td></td><td>2024</td><td>​ ​</td><td>2023</td><td>​ ​</td><td>​ ​</td><td>2022</td><td></td></tr><tr><td>CASH FLOWS FROM OPERATING ACTIVITIES: CASH FLOWS FROM OPERATING ACTIVITIES:</td><td>​ ​</td><td>​ ​</td><td> </td><td> </td><td>​ ​</td><td> </td><td> </td><td>​ ​</td><td> </td><td>​ ​</td></tr><tr><td>Net income Net income</td><td>​ ​</td><td>$ $</td><td>322,962 322,962</td><td>​ ​</td><td>$ $</td><td>34,342 34,342</td><td>​ ​</td><td>$ $</td><td>72,953 72,953</td><td>​ ​</td></tr><tr><td>Adjustments to reconcile net income to net cash provided by operating activities: Adjustments to reconcile net income to net cash provided by operating activities:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Depreciation and amortization Depreciation and amortization</td><td>​ ​</td><td> </td><td>383,880 383,880</td><td>​ ​</td><td> </td><td>383,115 383,115</td><td>​ ​</td><td> </td><td>394,552 394,552</td><td>​ ​</td></tr><tr><td>Stock based compensation expense Stock based compensation expense</td><td>​ ​</td><td> </td><td>19,864 19,864</td><td>​ ​</td><td> </td><td>17,125 17,125</td><td>​ ​</td><td> </td><td>9,159 9,159</td><td>​ ​</td></tr><tr><td>Decrease in credit loss reserves Decrease in credit loss reserves</td><td>​ ​</td><td>​ ​</td><td>( 3,628 ) ( 3,628 )</td><td>​ ​</td><td>​ ​</td><td>( 185 ) ( 185 )</td><td>​ ​</td><td>​ ​</td><td>( 4,591 ) ( 4,591 )</td><td>​ ​</td></tr><tr><td>Gain on disposal of fixed assets Gain on disposal of fixed assets</td><td>​ ​</td><td>​ ​</td><td>( 8,245 ) ( 8,245 )</td><td>​ ​</td><td>​ ​</td><td>( 14,295 ) ( 14,295 )</td><td>​ ​</td><td>​ ​</td><td>( 7,948 ) ( 7,948 )</td><td>​ ​</td></tr><tr><td>Loss (gain) on investments in other companies Loss (gain) on investments in other companies</td><td>​ ​</td><td>​ ​</td><td>6,815 6,815</td><td>​ ​</td><td>​ ​</td><td>479 479</td><td>​ ​</td><td>​ ​</td><td>( 11,380 ) ( 11,380 )</td><td>​ ​</td></tr><tr><td>Net increase in deferred income taxes Net increase in deferred income taxes</td><td>​ ​</td><td> </td><td>100,368 100,368</td><td>​ ​</td><td> </td><td>539 539</td><td>​ ​</td><td> </td><td>23,825 23,825</td><td>​ ​</td></tr><tr><td>Impairment (gain) on assets held for sale Impairment (gain) on assets held for sale</td><td>​ ​</td><td>​ ​</td><td>( 4,157 ) ( 4,157 )</td><td>​ ​</td><td>​ ​</td><td>2,318 2,318</td><td>​ ​</td><td>​ ​</td><td>51,384 51,384</td><td>​ ​</td></tr><tr><td>Changes in operating assets and liabilities: Changes in operating assets and liabilities:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Decrease (increase) in receivables Decrease (increase) in receivables</td><td>​ ​</td><td> </td><td>( 41,171 ) ( 41,171 )</td><td>​ ​</td><td> </td><td>19,818 19,818</td><td>​ ​</td><td> </td><td>( 32,959 ) ( 32,959 )</td><td>​ ​</td></tr><tr><td>Decrease (increase) in income tax receivable Decrease (increase) in income tax receivable</td><td>​ ​</td><td> </td><td>( 7,504 ) ( 7,504 )</td><td>​ ​</td><td> </td><td>997 997</td><td>​ ​</td><td> </td><td>7,815 7,815</td><td>​ ​</td></tr><tr><td>Increase in inventories Increase in inventories</td><td>​ ​</td><td> </td><td>( 11,888 ) ( 11,888 )</td><td>​ ​</td><td> </td><td>( 3,905 ) ( 3,905 )</td><td>​ ​</td><td> </td><td>( 16,628 ) ( 16,628 )</td><td>​ ​</td></tr><tr><td>Decrease (increase) in other current assets Decrease (increase) in other current assets</td><td>​ ​</td><td> </td><td>( 13,813 ) ( 13,813 )</td><td>​ ​</td><td> </td><td>1,593 1,593</td><td>​ ​</td><td> </td><td>( 2,871 ) ( 2,871 )</td><td>​ ​</td></tr><tr><td>Decrease (increase) in operating lease right-of-use assets Decrease (increase) in operating lease right-of-use assets</td><td>​ ​</td><td>​ ​</td><td>( 1,004 ) ( 1,004 )</td><td>​ ​</td><td>​ ​</td><td>25,954 25,954</td><td>​ ​</td><td>​ ​</td><td>86,588 86,588</td><td>​ ​</td></tr><tr><td>Increase (decrease) in operating lease liabilities Increase (decrease) in operating lease liabilities</td><td>​ ​</td><td>​ ​</td><td>1,004 1,004</td><td>​ ​</td><td>​ ​</td><td>( 54,984 ) ( 54,984 )</td><td>​ ​</td><td>​ ​</td><td>( 76,812 ) ( 76,812 )</td><td>​ ​</td></tr><tr><td>Increase (decrease) in deferred revenue Increase (decrease) in deferred revenue</td><td>​ ​</td><td>​ ​</td><td>( 40,012 ) ( 40,012 )</td><td>​ ​</td><td>​ ​</td><td>229,862 229,862</td><td>​ ​</td><td>​ ​</td><td>40,812 40,812</td><td>​ ​</td></tr><tr><td>Decrease (increase) in unbilled revenue Decrease (increase) in unbilled revenue</td><td>​ ​</td><td>​ ​</td><td>( 7,871 ) ( 7,871 )</td><td>​ ​</td><td>​ ​</td><td>12,601 12,601</td><td>​ ​</td><td>​ ​</td><td>( 11,491 ) ( 11,491 )</td><td>​ ​</td></tr><tr><td>Increase (decrease) in accounts payable and other current liabilities Increase (decrease) in accounts payable and other current liabilities</td><td>​ ​</td><td> </td><td>( 3,138 ) ( 3,138 )</td><td>​ ​</td><td> </td><td>80,960 80,960</td><td>​ ​</td><td> </td><td>( 42,032 ) ( 42,032 )</td><td>​ ​</td></tr><tr><td>NET CASH PROVIDED BY OPERATING ACTIVITIES NET CASH PROVIDED BY OPERATING ACTIVITIES</td><td>​ ​</td><td> </td><td>692,462 692,462</td><td>​ ​</td><td> </td><td>736,334 736,334</td><td>​ ​</td><td> </td><td>480,376 480,376</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>CASH FLOWS FROM INVESTING ACTIVITIES: CASH FLOWS FROM INVESTING ACTIVITIES:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Purchases of marketable securities Purchases of marketable securities</td><td>​ ​</td><td> </td><td>( 1,430,733 ) ( 1,430,733 )</td><td>​ ​</td><td> </td><td>( 1,339,465 ) ( 1,339,465 )</td><td>​ ​</td><td> </td><td>( 1,834,403 ) ( 1,834,403 )</td><td>​ ​</td></tr><tr><td>Sales of marketable securities Sales of marketable securities</td><td>​ ​</td><td> </td><td>1,543,256 1,543,256</td><td>​ ​</td><td> </td><td>1,600,877 1,600,877</td><td>​ ​</td><td> </td><td>1,488,359 1,488,359</td><td>​ ​</td></tr><tr><td>Acquisition of property and equipment: Acquisition of property and equipment:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Aircraft and rotable spare parts Aircraft and rotable spare parts</td><td>​ ​</td><td> </td><td>( 265,854 ) ( 265,854 )</td><td>​ ​</td><td> </td><td>( 238,068 ) ( 238,068 )</td><td>​ ​</td><td> </td><td>( 632,460 ) ( 632,460 )</td><td>​ ​</td></tr><tr><td>Buildings and ground equipment Buildings and ground equipment</td><td>​ ​</td><td> </td><td>( 44,895 ) ( 44,895 )</td><td>​ ​</td><td> </td><td>( 13,258 ) ( 13,258 )</td><td>​ ​</td><td> </td><td>( 13,031 ) ( 13,031 )</td><td>​ ​</td></tr><tr><td>Proceeds from the sale of property and equipment Proceeds from the sale of property and equipment</td><td>​ ​</td><td> </td><td>5,154 5,154</td><td>​ ​</td><td> </td><td>15,879 15,879</td><td>​ ​</td><td> </td><td>16,983 16,983</td><td>​ ​</td></tr><tr><td>Deposits on aircraft Deposits on aircraft</td><td>​ ​</td><td>​ ​</td><td>( 17,535 ) ( 17,535 )</td><td>​ ​</td><td>​ ​</td><td>( 65,000 ) ( 65,000 )</td><td>​ ​</td><td>​ ​</td><td>( 37,100 ) ( 37,100 )</td><td>​ ​</td></tr><tr><td>Aircraft deposits applied towards acquired aircraft Aircraft deposits applied towards acquired aircraft</td><td>​ ​</td><td>​ ​</td><td>β€” β€”</td><td>​ ​</td><td>​ ​</td><td>11,649 11,649</td><td>​ ​</td><td>​ ​</td><td>138,383 138,383</td><td>​ ​</td></tr><tr><td>Decrease (increase) in investments and financing activities with third parties and other assets Decrease (increase) in investments and financing activities with third parties and other assets</td><td>​ ​</td><td> </td><td>( 18,020 ) ( 18,020 )</td><td>​ ​</td><td> </td><td>4,158 4,158</td><td>​ ​</td><td> </td><td>( 31,625 ) ( 31,625 )</td><td>​ ​</td></tr><tr><td>NET CASH USED IN INVESTING ACTIVITIES NET CASH USED IN INVESTING ACTIVITIES</td><td>​ ​</td><td> </td><td>( 228,627 ) ( 228,627 )</td><td>​ ​</td><td> </td><td>( 23,228 ) ( 23,228 )</td><td>​ ​</td><td> </td><td>( 904,894 ) ( 904,894 )</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>CASH FLOWS FROM FINANCING ACTIVITIES: CASH FLOWS FROM FINANCING ACTIVITIES:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Proceeds from issuance of long-term debt Proceeds from issuance of long-term debt</td><td>​ ​</td><td> </td><td>116,165 116,165</td><td>​ ​</td><td> </td><td>69,689 69,689</td><td>​ ​</td><td> </td><td>684,502 684,502</td><td>​ ​</td></tr><tr><td>Principal payments on long-term debt Principal payments on long-term debt</td><td>​ ​</td><td> </td><td>( 452,855 ) ( 452,855 )</td><td>​ ​</td><td> </td><td>( 447,604 ) ( 447,604 )</td><td>​ ​</td><td> </td><td>( 415,050 ) ( 415,050 )</td><td>​ ​</td></tr><tr><td>Payment of debt issuance cost Payment of debt issuance cost</td><td>​ ​</td><td>​ ​</td><td>( 670 ) ( 670 )</td><td>​ ​</td><td>​ ​</td><td>( 175 ) ( 175 )</td><td>​ ​</td><td>​ ​</td><td>( 2,178 ) ( 2,178 )</td><td>​ ​</td></tr><tr><td>Net proceeds from issuance of common stock Net proceeds from issuance of common stock</td><td>​ ​</td><td> </td><td>2,864 2,864</td><td>​ ​</td><td> </td><td>2,811 2,811</td><td>​ ​</td><td> </td><td>2,957 2,957</td><td>​ ​</td></tr><tr><td>Employee income tax paid on vested equity awards Employee income tax paid on vested equity awards</td><td>​ ​</td><td>​ ​</td><td>( 6,930 ) ( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>( 585 ) ( 585 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 ) ( 1,150 )</td><td>​ ​</td></tr><tr><td>Purchase of treasury stock and related excise tax Purchase of treasury stock and related excise tax</td><td>​ ​</td><td> </td><td>( 43,324 ) ( 43,324 )</td><td>​ ​</td><td> </td><td>( 291,949 ) ( 291,949 )</td><td>​ ​</td><td> </td><td>β€” β€”</td><td>​ ​</td></tr><tr><td>NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES</td><td>​ ​</td><td> </td><td>( 384,750 ) ( 384,750 )</td><td>​ ​</td><td> </td><td>( 667,813 ) ( 667,813 )</td><td>​ ​</td><td> </td><td>269,081 269,081</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Increase (decrease) in cash and cash equivalents Increase (decrease) in cash and cash equivalents</td><td>​ ​</td><td> </td><td>79,085 79,085</td><td>​ ​</td><td> </td><td>45,293 45,293</td><td>​ ​</td><td> </td><td>( 155,437 ) ( 155,437 )</td><td>​ ​</td></tr><tr><td>Cash and cash equivalents at beginning of period Cash and cash equivalents at beginning of period</td><td>​ ​</td><td> </td><td>148,277 148,277</td><td>​ ​</td><td> </td><td>102,984 102,984</td><td>​ ​</td><td> </td><td>258,421 258,421</td><td>​ ​</td></tr><tr><td>CASH AND CASH EQUIVALENTS AT END OF PERIOD CASH AND CASH EQUIVALENTS AT END OF PERIOD</td><td>​ ​</td><td>$ $</td><td>227,362 227,362</td><td>​ ​</td><td>$ $</td><td>148,277 148,277</td><td>​ ​</td><td>$ $</td><td>102,984 102,984</td><td>​ ​</td></tr></table>
table
3628
monetaryItemType
table: <entity> 3628 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:ProvisionForLoanLossesExpensed
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Year Ended DecemberΒ 31,</td></tr><tr><td>​ ​</td><td></td><td>2024</td><td>​ ​</td><td>2023</td><td>​ ​</td><td>​ ​</td><td>2022</td><td></td></tr><tr><td>CASH FLOWS FROM OPERATING ACTIVITIES: CASH FLOWS FROM OPERATING ACTIVITIES:</td><td>​ ​</td><td>​ ​</td><td> </td><td> </td><td>​ ​</td><td> </td><td> </td><td>​ ​</td><td> </td><td>​ ​</td></tr><tr><td>Net income Net income</td><td>​ ​</td><td>$ $</td><td>322,962 322,962</td><td>​ ​</td><td>$ $</td><td>34,342 34,342</td><td>​ ​</td><td>$ $</td><td>72,953 72,953</td><td>​ ​</td></tr><tr><td>Adjustments to reconcile net income to net cash provided by operating activities: Adjustments to reconcile net income to net cash provided by operating activities:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Depreciation and amortization Depreciation and amortization</td><td>​ ​</td><td> </td><td>383,880 383,880</td><td>​ ​</td><td> </td><td>383,115 383,115</td><td>​ ​</td><td> </td><td>394,552 394,552</td><td>​ ​</td></tr><tr><td>Stock based compensation expense Stock based compensation expense</td><td>​ ​</td><td> </td><td>19,864 19,864</td><td>​ ​</td><td> </td><td>17,125 17,125</td><td>​ ​</td><td> </td><td>9,159 9,159</td><td>​ ​</td></tr><tr><td>Decrease in credit loss reserves Decrease in credit loss reserves</td><td>​ ​</td><td>​ ​</td><td>( 3,628 ) ( 3,628 )</td><td>​ ​</td><td>​ ​</td><td>( 185 ) ( 185 )</td><td>​ ​</td><td>​ ​</td><td>( 4,591 ) ( 4,591 )</td><td>​ ​</td></tr><tr><td>Gain on disposal of fixed assets Gain on disposal of fixed assets</td><td>​ ​</td><td>​ ​</td><td>( 8,245 ) ( 8,245 )</td><td>​ ​</td><td>​ ​</td><td>( 14,295 ) ( 14,295 )</td><td>​ ​</td><td>​ ​</td><td>( 7,948 ) ( 7,948 )</td><td>​ ​</td></tr><tr><td>Loss (gain) on investments in other companies Loss (gain) on investments in other companies</td><td>​ ​</td><td>​ ​</td><td>6,815 6,815</td><td>​ ​</td><td>​ ​</td><td>479 479</td><td>​ ​</td><td>​ ​</td><td>( 11,380 ) ( 11,380 )</td><td>​ ​</td></tr><tr><td>Net increase in deferred income taxes Net increase in deferred income taxes</td><td>​ ​</td><td> </td><td>100,368 100,368</td><td>​ ​</td><td> </td><td>539 539</td><td>​ ​</td><td> </td><td>23,825 23,825</td><td>​ ​</td></tr><tr><td>Impairment (gain) on assets held for sale Impairment (gain) on assets held for sale</td><td>​ ​</td><td>​ ​</td><td>( 4,157 ) ( 4,157 )</td><td>​ ​</td><td>​ ​</td><td>2,318 2,318</td><td>​ ​</td><td>​ ​</td><td>51,384 51,384</td><td>​ ​</td></tr><tr><td>Changes in operating assets and liabilities: Changes in operating assets and liabilities:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Decrease (increase) in receivables Decrease (increase) in receivables</td><td>​ ​</td><td> </td><td>( 41,171 ) ( 41,171 )</td><td>​ ​</td><td> </td><td>19,818 19,818</td><td>​ ​</td><td> </td><td>( 32,959 ) ( 32,959 )</td><td>​ ​</td></tr><tr><td>Decrease (increase) in income tax receivable Decrease (increase) in income tax receivable</td><td>​ ​</td><td> </td><td>( 7,504 ) ( 7,504 )</td><td>​ ​</td><td> </td><td>997 997</td><td>​ ​</td><td> </td><td>7,815 7,815</td><td>​ ​</td></tr><tr><td>Increase in inventories Increase in inventories</td><td>​ ​</td><td> </td><td>( 11,888 ) ( 11,888 )</td><td>​ ​</td><td> </td><td>( 3,905 ) ( 3,905 )</td><td>​ ​</td><td> </td><td>( 16,628 ) ( 16,628 )</td><td>​ ​</td></tr><tr><td>Decrease (increase) in other current assets Decrease (increase) in other current assets</td><td>​ ​</td><td> </td><td>( 13,813 ) ( 13,813 )</td><td>​ ​</td><td> </td><td>1,593 1,593</td><td>​ ​</td><td> </td><td>( 2,871 ) ( 2,871 )</td><td>​ ​</td></tr><tr><td>Decrease (increase) in operating lease right-of-use assets Decrease (increase) in operating lease right-of-use assets</td><td>​ ​</td><td>​ ​</td><td>( 1,004 ) ( 1,004 )</td><td>​ ​</td><td>​ ​</td><td>25,954 25,954</td><td>​ ​</td><td>​ ​</td><td>86,588 86,588</td><td>​ ​</td></tr><tr><td>Increase (decrease) in operating lease liabilities Increase (decrease) in operating lease liabilities</td><td>​ ​</td><td>​ ​</td><td>1,004 1,004</td><td>​ ​</td><td>​ ​</td><td>( 54,984 ) ( 54,984 )</td><td>​ ​</td><td>​ ​</td><td>( 76,812 ) ( 76,812 )</td><td>​ ​</td></tr><tr><td>Increase (decrease) in deferred revenue Increase (decrease) in deferred revenue</td><td>​ ​</td><td>​ ​</td><td>( 40,012 ) ( 40,012 )</td><td>​ ​</td><td>​ ​</td><td>229,862 229,862</td><td>​ ​</td><td>​ ​</td><td>40,812 40,812</td><td>​ ​</td></tr><tr><td>Decrease (increase) in unbilled revenue Decrease (increase) in unbilled revenue</td><td>​ ​</td><td>​ ​</td><td>( 7,871 ) ( 7,871 )</td><td>​ ​</td><td>​ ​</td><td>12,601 12,601</td><td>​ ​</td><td>​ ​</td><td>( 11,491 ) ( 11,491 )</td><td>​ ​</td></tr><tr><td>Increase (decrease) in accounts payable and other current liabilities Increase (decrease) in accounts payable and other current liabilities</td><td>​ ​</td><td> </td><td>( 3,138 ) ( 3,138 )</td><td>​ ​</td><td> </td><td>80,960 80,960</td><td>​ ​</td><td> </td><td>( 42,032 ) ( 42,032 )</td><td>​ ​</td></tr><tr><td>NET CASH PROVIDED BY OPERATING ACTIVITIES NET CASH PROVIDED BY OPERATING ACTIVITIES</td><td>​ ​</td><td> </td><td>692,462 692,462</td><td>​ ​</td><td> </td><td>736,334 736,334</td><td>​ ​</td><td> </td><td>480,376 480,376</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>CASH FLOWS FROM INVESTING ACTIVITIES: CASH FLOWS FROM INVESTING ACTIVITIES:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Purchases of marketable securities Purchases of marketable securities</td><td>​ ​</td><td> </td><td>( 1,430,733 ) ( 1,430,733 )</td><td>​ ​</td><td> </td><td>( 1,339,465 ) ( 1,339,465 )</td><td>​ ​</td><td> </td><td>( 1,834,403 ) ( 1,834,403 )</td><td>​ ​</td></tr><tr><td>Sales of marketable securities Sales of marketable securities</td><td>​ ​</td><td> </td><td>1,543,256 1,543,256</td><td>​ ​</td><td> </td><td>1,600,877 1,600,877</td><td>​ ​</td><td> </td><td>1,488,359 1,488,359</td><td>​ ​</td></tr><tr><td>Acquisition of property and equipment: Acquisition of property and equipment:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Aircraft and rotable spare parts Aircraft and rotable spare parts</td><td>​ ​</td><td> </td><td>( 265,854 ) ( 265,854 )</td><td>​ ​</td><td> </td><td>( 238,068 ) ( 238,068 )</td><td>​ ​</td><td> </td><td>( 632,460 ) ( 632,460 )</td><td>​ ​</td></tr><tr><td>Buildings and ground equipment Buildings and ground equipment</td><td>​ ​</td><td> </td><td>( 44,895 ) ( 44,895 )</td><td>​ ​</td><td> </td><td>( 13,258 ) ( 13,258 )</td><td>​ ​</td><td> </td><td>( 13,031 ) ( 13,031 )</td><td>​ ​</td></tr><tr><td>Proceeds from the sale of property and equipment Proceeds from the sale of property and equipment</td><td>​ ​</td><td> </td><td>5,154 5,154</td><td>​ ​</td><td> </td><td>15,879 15,879</td><td>​ ​</td><td> </td><td>16,983 16,983</td><td>​ ​</td></tr><tr><td>Deposits on aircraft Deposits on aircraft</td><td>​ ​</td><td>​ ​</td><td>( 17,535 ) ( 17,535 )</td><td>​ ​</td><td>​ ​</td><td>( 65,000 ) ( 65,000 )</td><td>​ ​</td><td>​ ​</td><td>( 37,100 ) ( 37,100 )</td><td>​ ​</td></tr><tr><td>Aircraft deposits applied towards acquired aircraft Aircraft deposits applied towards acquired aircraft</td><td>​ ​</td><td>​ ​</td><td>β€” β€”</td><td>​ ​</td><td>​ ​</td><td>11,649 11,649</td><td>​ ​</td><td>​ ​</td><td>138,383 138,383</td><td>​ ​</td></tr><tr><td>Decrease (increase) in investments and financing activities with third parties and other assets Decrease (increase) in investments and financing activities with third parties and other assets</td><td>​ ​</td><td> </td><td>( 18,020 ) ( 18,020 )</td><td>​ ​</td><td> </td><td>4,158 4,158</td><td>​ ​</td><td> </td><td>( 31,625 ) ( 31,625 )</td><td>​ ​</td></tr><tr><td>NET CASH USED IN INVESTING ACTIVITIES NET CASH USED IN INVESTING ACTIVITIES</td><td>​ ​</td><td> </td><td>( 228,627 ) ( 228,627 )</td><td>​ ​</td><td> </td><td>( 23,228 ) ( 23,228 )</td><td>​ ​</td><td> </td><td>( 904,894 ) ( 904,894 )</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>CASH FLOWS FROM FINANCING ACTIVITIES: CASH FLOWS FROM FINANCING ACTIVITIES:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Proceeds from issuance of long-term debt Proceeds from issuance of long-term debt</td><td>​ ​</td><td> </td><td>116,165 116,165</td><td>​ ​</td><td> </td><td>69,689 69,689</td><td>​ ​</td><td> </td><td>684,502 684,502</td><td>​ ​</td></tr><tr><td>Principal payments on long-term debt Principal payments on long-term debt</td><td>​ ​</td><td> </td><td>( 452,855 ) ( 452,855 )</td><td>​ ​</td><td> </td><td>( 447,604 ) ( 447,604 )</td><td>​ ​</td><td> </td><td>( 415,050 ) ( 415,050 )</td><td>​ ​</td></tr><tr><td>Payment of debt issuance cost Payment of debt issuance cost</td><td>​ ​</td><td>​ ​</td><td>( 670 ) ( 670 )</td><td>​ ​</td><td>​ ​</td><td>( 175 ) ( 175 )</td><td>​ ​</td><td>​ ​</td><td>( 2,178 ) ( 2,178 )</td><td>​ ​</td></tr><tr><td>Net proceeds from issuance of common stock Net proceeds from issuance of common stock</td><td>​ ​</td><td> </td><td>2,864 2,864</td><td>​ ​</td><td> </td><td>2,811 2,811</td><td>​ ​</td><td> </td><td>2,957 2,957</td><td>​ ​</td></tr><tr><td>Employee income tax paid on vested equity awards Employee income tax paid on vested equity awards</td><td>​ ​</td><td>​ ​</td><td>( 6,930 ) ( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>( 585 ) ( 585 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 ) ( 1,150 )</td><td>​ ​</td></tr><tr><td>Purchase of treasury stock and related excise tax Purchase of treasury stock and related excise tax</td><td>​ ​</td><td> </td><td>( 43,324 ) ( 43,324 )</td><td>​ ​</td><td> </td><td>( 291,949 ) ( 291,949 )</td><td>​ ​</td><td> </td><td>β€” β€”</td><td>​ ​</td></tr><tr><td>NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES</td><td>​ ​</td><td> </td><td>( 384,750 ) ( 384,750 )</td><td>​ ​</td><td> </td><td>( 667,813 ) ( 667,813 )</td><td>​ ​</td><td> </td><td>269,081 269,081</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Increase (decrease) in cash and cash equivalents Increase (decrease) in cash and cash equivalents</td><td>​ ​</td><td> </td><td>79,085 79,085</td><td>​ ​</td><td> </td><td>45,293 45,293</td><td>​ ​</td><td> </td><td>( 155,437 ) ( 155,437 )</td><td>​ ​</td></tr><tr><td>Cash and cash equivalents at beginning of period Cash and cash equivalents at beginning of period</td><td>​ ​</td><td> </td><td>148,277 148,277</td><td>​ ​</td><td> </td><td>102,984 102,984</td><td>​ ​</td><td> </td><td>258,421 258,421</td><td>​ ​</td></tr><tr><td>CASH AND CASH EQUIVALENTS AT END OF PERIOD CASH AND CASH EQUIVALENTS AT END OF PERIOD</td><td>​ ​</td><td>$ $</td><td>227,362 227,362</td><td>​ ​</td><td>$ $</td><td>148,277 148,277</td><td>​ ​</td><td>$ $</td><td>102,984 102,984</td><td>​ ​</td></tr></table>
table
185
monetaryItemType
table: <entity> 185 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:ProvisionForLoanLossesExpensed
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Year Ended DecemberΒ 31,</td></tr><tr><td>​ ​</td><td></td><td>2024</td><td>​ ​</td><td>2023</td><td>​ ​</td><td>​ ​</td><td>2022</td><td></td></tr><tr><td>CASH FLOWS FROM OPERATING ACTIVITIES: CASH FLOWS FROM OPERATING ACTIVITIES:</td><td>​ ​</td><td>​ ​</td><td> </td><td> </td><td>​ ​</td><td> </td><td> </td><td>​ ​</td><td> </td><td>​ ​</td></tr><tr><td>Net income Net income</td><td>​ ​</td><td>$ $</td><td>322,962 322,962</td><td>​ ​</td><td>$ $</td><td>34,342 34,342</td><td>​ ​</td><td>$ $</td><td>72,953 72,953</td><td>​ ​</td></tr><tr><td>Adjustments to reconcile net income to net cash provided by operating activities: Adjustments to reconcile net income to net cash provided by operating activities:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Depreciation and amortization Depreciation and amortization</td><td>​ ​</td><td> </td><td>383,880 383,880</td><td>​ ​</td><td> </td><td>383,115 383,115</td><td>​ ​</td><td> </td><td>394,552 394,552</td><td>​ ​</td></tr><tr><td>Stock based compensation expense Stock based compensation expense</td><td>​ ​</td><td> </td><td>19,864 19,864</td><td>​ ​</td><td> </td><td>17,125 17,125</td><td>​ ​</td><td> </td><td>9,159 9,159</td><td>​ ​</td></tr><tr><td>Decrease in credit loss reserves Decrease in credit loss reserves</td><td>​ ​</td><td>​ ​</td><td>( 3,628 ) ( 3,628 )</td><td>​ ​</td><td>​ ​</td><td>( 185 ) ( 185 )</td><td>​ ​</td><td>​ ​</td><td>( 4,591 ) ( 4,591 )</td><td>​ ​</td></tr><tr><td>Gain on disposal of fixed assets Gain on disposal of fixed assets</td><td>​ ​</td><td>​ ​</td><td>( 8,245 ) ( 8,245 )</td><td>​ ​</td><td>​ ​</td><td>( 14,295 ) ( 14,295 )</td><td>​ ​</td><td>​ ​</td><td>( 7,948 ) ( 7,948 )</td><td>​ ​</td></tr><tr><td>Loss (gain) on investments in other companies Loss (gain) on investments in other companies</td><td>​ ​</td><td>​ ​</td><td>6,815 6,815</td><td>​ ​</td><td>​ ​</td><td>479 479</td><td>​ ​</td><td>​ ​</td><td>( 11,380 ) ( 11,380 )</td><td>​ ​</td></tr><tr><td>Net increase in deferred income taxes Net increase in deferred income taxes</td><td>​ ​</td><td> </td><td>100,368 100,368</td><td>​ ​</td><td> </td><td>539 539</td><td>​ ​</td><td> </td><td>23,825 23,825</td><td>​ ​</td></tr><tr><td>Impairment (gain) on assets held for sale Impairment (gain) on assets held for sale</td><td>​ ​</td><td>​ ​</td><td>( 4,157 ) ( 4,157 )</td><td>​ ​</td><td>​ ​</td><td>2,318 2,318</td><td>​ ​</td><td>​ ​</td><td>51,384 51,384</td><td>​ ​</td></tr><tr><td>Changes in operating assets and liabilities: Changes in operating assets and liabilities:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Decrease (increase) in receivables Decrease (increase) in receivables</td><td>​ ​</td><td> </td><td>( 41,171 ) ( 41,171 )</td><td>​ ​</td><td> </td><td>19,818 19,818</td><td>​ ​</td><td> </td><td>( 32,959 ) ( 32,959 )</td><td>​ ​</td></tr><tr><td>Decrease (increase) in income tax receivable Decrease (increase) in income tax receivable</td><td>​ ​</td><td> </td><td>( 7,504 ) ( 7,504 )</td><td>​ ​</td><td> </td><td>997 997</td><td>​ ​</td><td> </td><td>7,815 7,815</td><td>​ ​</td></tr><tr><td>Increase in inventories Increase in inventories</td><td>​ ​</td><td> </td><td>( 11,888 ) ( 11,888 )</td><td>​ ​</td><td> </td><td>( 3,905 ) ( 3,905 )</td><td>​ ​</td><td> </td><td>( 16,628 ) ( 16,628 )</td><td>​ ​</td></tr><tr><td>Decrease (increase) in other current assets Decrease (increase) in other current assets</td><td>​ ​</td><td> </td><td>( 13,813 ) ( 13,813 )</td><td>​ ​</td><td> </td><td>1,593 1,593</td><td>​ ​</td><td> </td><td>( 2,871 ) ( 2,871 )</td><td>​ ​</td></tr><tr><td>Decrease (increase) in operating lease right-of-use assets Decrease (increase) in operating lease right-of-use assets</td><td>​ ​</td><td>​ ​</td><td>( 1,004 ) ( 1,004 )</td><td>​ ​</td><td>​ ​</td><td>25,954 25,954</td><td>​ ​</td><td>​ ​</td><td>86,588 86,588</td><td>​ ​</td></tr><tr><td>Increase (decrease) in operating lease liabilities Increase (decrease) in operating lease liabilities</td><td>​ ​</td><td>​ ​</td><td>1,004 1,004</td><td>​ ​</td><td>​ ​</td><td>( 54,984 ) ( 54,984 )</td><td>​ ​</td><td>​ ​</td><td>( 76,812 ) ( 76,812 )</td><td>​ ​</td></tr><tr><td>Increase (decrease) in deferred revenue Increase (decrease) in deferred revenue</td><td>​ ​</td><td>​ ​</td><td>( 40,012 ) ( 40,012 )</td><td>​ ​</td><td>​ ​</td><td>229,862 229,862</td><td>​ ​</td><td>​ ​</td><td>40,812 40,812</td><td>​ ​</td></tr><tr><td>Decrease (increase) in unbilled revenue Decrease (increase) in unbilled revenue</td><td>​ ​</td><td>​ ​</td><td>( 7,871 ) ( 7,871 )</td><td>​ ​</td><td>​ ​</td><td>12,601 12,601</td><td>​ ​</td><td>​ ​</td><td>( 11,491 ) ( 11,491 )</td><td>​ ​</td></tr><tr><td>Increase (decrease) in accounts payable and other current liabilities Increase (decrease) in accounts payable and other current liabilities</td><td>​ ​</td><td> </td><td>( 3,138 ) ( 3,138 )</td><td>​ ​</td><td> </td><td>80,960 80,960</td><td>​ ​</td><td> </td><td>( 42,032 ) ( 42,032 )</td><td>​ ​</td></tr><tr><td>NET CASH PROVIDED BY OPERATING ACTIVITIES NET CASH PROVIDED BY OPERATING ACTIVITIES</td><td>​ ​</td><td> </td><td>692,462 692,462</td><td>​ ​</td><td> </td><td>736,334 736,334</td><td>​ ​</td><td> </td><td>480,376 480,376</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>CASH FLOWS FROM INVESTING ACTIVITIES: CASH FLOWS FROM INVESTING ACTIVITIES:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Purchases of marketable securities Purchases of marketable securities</td><td>​ ​</td><td> </td><td>( 1,430,733 ) ( 1,430,733 )</td><td>​ ​</td><td> </td><td>( 1,339,465 ) ( 1,339,465 )</td><td>​ ​</td><td> </td><td>( 1,834,403 ) ( 1,834,403 )</td><td>​ ​</td></tr><tr><td>Sales of marketable securities Sales of marketable securities</td><td>​ ​</td><td> </td><td>1,543,256 1,543,256</td><td>​ ​</td><td> </td><td>1,600,877 1,600,877</td><td>​ ​</td><td> </td><td>1,488,359 1,488,359</td><td>​ ​</td></tr><tr><td>Acquisition of property and equipment: Acquisition of property and equipment:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Aircraft and rotable spare parts Aircraft and rotable spare parts</td><td>​ ​</td><td> </td><td>( 265,854 ) ( 265,854 )</td><td>​ ​</td><td> </td><td>( 238,068 ) ( 238,068 )</td><td>​ ​</td><td> </td><td>( 632,460 ) ( 632,460 )</td><td>​ ​</td></tr><tr><td>Buildings and ground equipment Buildings and ground equipment</td><td>​ ​</td><td> </td><td>( 44,895 ) ( 44,895 )</td><td>​ ​</td><td> </td><td>( 13,258 ) ( 13,258 )</td><td>​ ​</td><td> </td><td>( 13,031 ) ( 13,031 )</td><td>​ ​</td></tr><tr><td>Proceeds from the sale of property and equipment Proceeds from the sale of property and equipment</td><td>​ ​</td><td> </td><td>5,154 5,154</td><td>​ ​</td><td> </td><td>15,879 15,879</td><td>​ ​</td><td> </td><td>16,983 16,983</td><td>​ ​</td></tr><tr><td>Deposits on aircraft Deposits on aircraft</td><td>​ ​</td><td>​ ​</td><td>( 17,535 ) ( 17,535 )</td><td>​ ​</td><td>​ ​</td><td>( 65,000 ) ( 65,000 )</td><td>​ ​</td><td>​ ​</td><td>( 37,100 ) ( 37,100 )</td><td>​ ​</td></tr><tr><td>Aircraft deposits applied towards acquired aircraft Aircraft deposits applied towards acquired aircraft</td><td>​ ​</td><td>​ ​</td><td>β€” β€”</td><td>​ ​</td><td>​ ​</td><td>11,649 11,649</td><td>​ ​</td><td>​ ​</td><td>138,383 138,383</td><td>​ ​</td></tr><tr><td>Decrease (increase) in investments and financing activities with third parties and other assets Decrease (increase) in investments and financing activities with third parties and other assets</td><td>​ ​</td><td> </td><td>( 18,020 ) ( 18,020 )</td><td>​ ​</td><td> </td><td>4,158 4,158</td><td>​ ​</td><td> </td><td>( 31,625 ) ( 31,625 )</td><td>​ ​</td></tr><tr><td>NET CASH USED IN INVESTING ACTIVITIES NET CASH USED IN INVESTING ACTIVITIES</td><td>​ ​</td><td> </td><td>( 228,627 ) ( 228,627 )</td><td>​ ​</td><td> </td><td>( 23,228 ) ( 23,228 )</td><td>​ ​</td><td> </td><td>( 904,894 ) ( 904,894 )</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>CASH FLOWS FROM FINANCING ACTIVITIES: CASH FLOWS FROM FINANCING ACTIVITIES:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Proceeds from issuance of long-term debt Proceeds from issuance of long-term debt</td><td>​ ​</td><td> </td><td>116,165 116,165</td><td>​ ​</td><td> </td><td>69,689 69,689</td><td>​ ​</td><td> </td><td>684,502 684,502</td><td>​ ​</td></tr><tr><td>Principal payments on long-term debt Principal payments on long-term debt</td><td>​ ​</td><td> </td><td>( 452,855 ) ( 452,855 )</td><td>​ ​</td><td> </td><td>( 447,604 ) ( 447,604 )</td><td>​ ​</td><td> </td><td>( 415,050 ) ( 415,050 )</td><td>​ ​</td></tr><tr><td>Payment of debt issuance cost Payment of debt issuance cost</td><td>​ ​</td><td>​ ​</td><td>( 670 ) ( 670 )</td><td>​ ​</td><td>​ ​</td><td>( 175 ) ( 175 )</td><td>​ ​</td><td>​ ​</td><td>( 2,178 ) ( 2,178 )</td><td>​ ​</td></tr><tr><td>Net proceeds from issuance of common stock Net proceeds from issuance of common stock</td><td>​ ​</td><td> </td><td>2,864 2,864</td><td>​ ​</td><td> </td><td>2,811 2,811</td><td>​ ​</td><td> </td><td>2,957 2,957</td><td>​ ​</td></tr><tr><td>Employee income tax paid on vested equity awards Employee income tax paid on vested equity awards</td><td>​ ​</td><td>​ ​</td><td>( 6,930 ) ( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>( 585 ) ( 585 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 ) ( 1,150 )</td><td>​ ​</td></tr><tr><td>Purchase of treasury stock and related excise tax Purchase of treasury stock and related excise tax</td><td>​ ​</td><td> </td><td>( 43,324 ) ( 43,324 )</td><td>​ ​</td><td> </td><td>( 291,949 ) ( 291,949 )</td><td>​ ​</td><td> </td><td>β€” β€”</td><td>​ ​</td></tr><tr><td>NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES</td><td>​ ​</td><td> </td><td>( 384,750 ) ( 384,750 )</td><td>​ ​</td><td> </td><td>( 667,813 ) ( 667,813 )</td><td>​ ​</td><td> </td><td>269,081 269,081</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Increase (decrease) in cash and cash equivalents Increase (decrease) in cash and cash equivalents</td><td>​ ​</td><td> </td><td>79,085 79,085</td><td>​ ​</td><td> </td><td>45,293 45,293</td><td>​ ​</td><td> </td><td>( 155,437 ) ( 155,437 )</td><td>​ ​</td></tr><tr><td>Cash and cash equivalents at beginning of period Cash and cash equivalents at beginning of period</td><td>​ ​</td><td> </td><td>148,277 148,277</td><td>​ ​</td><td> </td><td>102,984 102,984</td><td>​ ​</td><td> </td><td>258,421 258,421</td><td>​ ​</td></tr><tr><td>CASH AND CASH EQUIVALENTS AT END OF PERIOD CASH AND CASH EQUIVALENTS AT END OF PERIOD</td><td>​ ​</td><td>$ $</td><td>227,362 227,362</td><td>​ ​</td><td>$ $</td><td>148,277 148,277</td><td>​ ​</td><td>$ $</td><td>102,984 102,984</td><td>​ ​</td></tr></table>
table
4591
monetaryItemType
table: <entity> 4591 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:ProvisionForLoanLossesExpensed
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Year Ended DecemberΒ 31,</td></tr><tr><td>​ ​</td><td></td><td>2024</td><td>​ ​</td><td>2023</td><td>​ ​</td><td>​ ​</td><td>2022</td><td></td></tr><tr><td>CASH FLOWS FROM OPERATING ACTIVITIES: CASH FLOWS FROM OPERATING ACTIVITIES:</td><td>​ ​</td><td>​ ​</td><td> </td><td> </td><td>​ ​</td><td> </td><td> </td><td>​ ​</td><td> </td><td>​ ​</td></tr><tr><td>Net income Net income</td><td>​ ​</td><td>$ $</td><td>322,962 322,962</td><td>​ ​</td><td>$ $</td><td>34,342 34,342</td><td>​ ​</td><td>$ $</td><td>72,953 72,953</td><td>​ ​</td></tr><tr><td>Adjustments to reconcile net income to net cash provided by operating activities: Adjustments to reconcile net income to net cash provided by operating activities:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Depreciation and amortization Depreciation and amortization</td><td>​ ​</td><td> </td><td>383,880 383,880</td><td>​ ​</td><td> </td><td>383,115 383,115</td><td>​ ​</td><td> </td><td>394,552 394,552</td><td>​ ​</td></tr><tr><td>Stock based compensation expense Stock based compensation expense</td><td>​ ​</td><td> </td><td>19,864 19,864</td><td>​ ​</td><td> </td><td>17,125 17,125</td><td>​ ​</td><td> </td><td>9,159 9,159</td><td>​ ​</td></tr><tr><td>Decrease in credit loss reserves Decrease in credit loss reserves</td><td>​ ​</td><td>​ ​</td><td>( 3,628 ) ( 3,628 )</td><td>​ ​</td><td>​ ​</td><td>( 185 ) ( 185 )</td><td>​ ​</td><td>​ ​</td><td>( 4,591 ) ( 4,591 )</td><td>​ ​</td></tr><tr><td>Gain on disposal of fixed assets Gain on disposal of fixed assets</td><td>​ ​</td><td>​ ​</td><td>( 8,245 ) ( 8,245 )</td><td>​ ​</td><td>​ ​</td><td>( 14,295 ) ( 14,295 )</td><td>​ ​</td><td>​ ​</td><td>( 7,948 ) ( 7,948 )</td><td>​ ​</td></tr><tr><td>Loss (gain) on investments in other companies Loss (gain) on investments in other companies</td><td>​ ​</td><td>​ ​</td><td>6,815 6,815</td><td>​ ​</td><td>​ ​</td><td>479 479</td><td>​ ​</td><td>​ ​</td><td>( 11,380 ) ( 11,380 )</td><td>​ ​</td></tr><tr><td>Net increase in deferred income taxes Net increase in deferred income taxes</td><td>​ ​</td><td> </td><td>100,368 100,368</td><td>​ ​</td><td> </td><td>539 539</td><td>​ ​</td><td> </td><td>23,825 23,825</td><td>​ ​</td></tr><tr><td>Impairment (gain) on assets held for sale Impairment (gain) on assets held for sale</td><td>​ ​</td><td>​ ​</td><td>( 4,157 ) ( 4,157 )</td><td>​ ​</td><td>​ ​</td><td>2,318 2,318</td><td>​ ​</td><td>​ ​</td><td>51,384 51,384</td><td>​ ​</td></tr><tr><td>Changes in operating assets and liabilities: Changes in operating assets and liabilities:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Decrease (increase) in receivables Decrease (increase) in receivables</td><td>​ ​</td><td> </td><td>( 41,171 ) ( 41,171 )</td><td>​ ​</td><td> </td><td>19,818 19,818</td><td>​ ​</td><td> </td><td>( 32,959 ) ( 32,959 )</td><td>​ ​</td></tr><tr><td>Decrease (increase) in income tax receivable Decrease (increase) in income tax receivable</td><td>​ ​</td><td> </td><td>( 7,504 ) ( 7,504 )</td><td>​ ​</td><td> </td><td>997 997</td><td>​ ​</td><td> </td><td>7,815 7,815</td><td>​ ​</td></tr><tr><td>Increase in inventories Increase in inventories</td><td>​ ​</td><td> </td><td>( 11,888 ) ( 11,888 )</td><td>​ ​</td><td> </td><td>( 3,905 ) ( 3,905 )</td><td>​ ​</td><td> </td><td>( 16,628 ) ( 16,628 )</td><td>​ ​</td></tr><tr><td>Decrease (increase) in other current assets Decrease (increase) in other current assets</td><td>​ ​</td><td> </td><td>( 13,813 ) ( 13,813 )</td><td>​ ​</td><td> </td><td>1,593 1,593</td><td>​ ​</td><td> </td><td>( 2,871 ) ( 2,871 )</td><td>​ ​</td></tr><tr><td>Decrease (increase) in operating lease right-of-use assets Decrease (increase) in operating lease right-of-use assets</td><td>​ ​</td><td>​ ​</td><td>( 1,004 ) ( 1,004 )</td><td>​ ​</td><td>​ ​</td><td>25,954 25,954</td><td>​ ​</td><td>​ ​</td><td>86,588 86,588</td><td>​ ​</td></tr><tr><td>Increase (decrease) in operating lease liabilities Increase (decrease) in operating lease liabilities</td><td>​ ​</td><td>​ ​</td><td>1,004 1,004</td><td>​ ​</td><td>​ ​</td><td>( 54,984 ) ( 54,984 )</td><td>​ ​</td><td>​ ​</td><td>( 76,812 ) ( 76,812 )</td><td>​ ​</td></tr><tr><td>Increase (decrease) in deferred revenue Increase (decrease) in deferred revenue</td><td>​ ​</td><td>​ ​</td><td>( 40,012 ) ( 40,012 )</td><td>​ ​</td><td>​ ​</td><td>229,862 229,862</td><td>​ ​</td><td>​ ​</td><td>40,812 40,812</td><td>​ ​</td></tr><tr><td>Decrease (increase) in unbilled revenue Decrease (increase) in unbilled revenue</td><td>​ ​</td><td>​ ​</td><td>( 7,871 ) ( 7,871 )</td><td>​ ​</td><td>​ ​</td><td>12,601 12,601</td><td>​ ​</td><td>​ ​</td><td>( 11,491 ) ( 11,491 )</td><td>​ ​</td></tr><tr><td>Increase (decrease) in accounts payable and other current liabilities Increase (decrease) in accounts payable and other current liabilities</td><td>​ ​</td><td> </td><td>( 3,138 ) ( 3,138 )</td><td>​ ​</td><td> </td><td>80,960 80,960</td><td>​ ​</td><td> </td><td>( 42,032 ) ( 42,032 )</td><td>​ ​</td></tr><tr><td>NET CASH PROVIDED BY OPERATING ACTIVITIES NET CASH PROVIDED BY OPERATING ACTIVITIES</td><td>​ ​</td><td> </td><td>692,462 692,462</td><td>​ ​</td><td> </td><td>736,334 736,334</td><td>​ ​</td><td> </td><td>480,376 480,376</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>CASH FLOWS FROM INVESTING ACTIVITIES: CASH FLOWS FROM INVESTING ACTIVITIES:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Purchases of marketable securities Purchases of marketable securities</td><td>​ ​</td><td> </td><td>( 1,430,733 ) ( 1,430,733 )</td><td>​ ​</td><td> </td><td>( 1,339,465 ) ( 1,339,465 )</td><td>​ ​</td><td> </td><td>( 1,834,403 ) ( 1,834,403 )</td><td>​ ​</td></tr><tr><td>Sales of marketable securities Sales of marketable securities</td><td>​ ​</td><td> </td><td>1,543,256 1,543,256</td><td>​ ​</td><td> </td><td>1,600,877 1,600,877</td><td>​ ​</td><td> </td><td>1,488,359 1,488,359</td><td>​ ​</td></tr><tr><td>Acquisition of property and equipment: Acquisition of property and equipment:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Aircraft and rotable spare parts Aircraft and rotable spare parts</td><td>​ ​</td><td> </td><td>( 265,854 ) ( 265,854 )</td><td>​ ​</td><td> </td><td>( 238,068 ) ( 238,068 )</td><td>​ ​</td><td> </td><td>( 632,460 ) ( 632,460 )</td><td>​ ​</td></tr><tr><td>Buildings and ground equipment Buildings and ground equipment</td><td>​ ​</td><td> </td><td>( 44,895 ) ( 44,895 )</td><td>​ ​</td><td> </td><td>( 13,258 ) ( 13,258 )</td><td>​ ​</td><td> </td><td>( 13,031 ) ( 13,031 )</td><td>​ ​</td></tr><tr><td>Proceeds from the sale of property and equipment Proceeds from the sale of property and equipment</td><td>​ ​</td><td> </td><td>5,154 5,154</td><td>​ ​</td><td> </td><td>15,879 15,879</td><td>​ ​</td><td> </td><td>16,983 16,983</td><td>​ ​</td></tr><tr><td>Deposits on aircraft Deposits on aircraft</td><td>​ ​</td><td>​ ​</td><td>( 17,535 ) ( 17,535 )</td><td>​ ​</td><td>​ ​</td><td>( 65,000 ) ( 65,000 )</td><td>​ ​</td><td>​ ​</td><td>( 37,100 ) ( 37,100 )</td><td>​ ​</td></tr><tr><td>Aircraft deposits applied towards acquired aircraft Aircraft deposits applied towards acquired aircraft</td><td>​ ​</td><td>​ ​</td><td>β€” β€”</td><td>​ ​</td><td>​ ​</td><td>11,649 11,649</td><td>​ ​</td><td>​ ​</td><td>138,383 138,383</td><td>​ ​</td></tr><tr><td>Decrease (increase) in investments and financing activities with third parties and other assets Decrease (increase) in investments and financing activities with third parties and other assets</td><td>​ ​</td><td> </td><td>( 18,020 ) ( 18,020 )</td><td>​ ​</td><td> </td><td>4,158 4,158</td><td>​ ​</td><td> </td><td>( 31,625 ) ( 31,625 )</td><td>​ ​</td></tr><tr><td>NET CASH USED IN INVESTING ACTIVITIES NET CASH USED IN INVESTING ACTIVITIES</td><td>​ ​</td><td> </td><td>( 228,627 ) ( 228,627 )</td><td>​ ​</td><td> </td><td>( 23,228 ) ( 23,228 )</td><td>​ ​</td><td> </td><td>( 904,894 ) ( 904,894 )</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>CASH FLOWS FROM FINANCING ACTIVITIES: CASH FLOWS FROM FINANCING ACTIVITIES:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Proceeds from issuance of long-term debt Proceeds from issuance of long-term debt</td><td>​ ​</td><td> </td><td>116,165 116,165</td><td>​ ​</td><td> </td><td>69,689 69,689</td><td>​ ​</td><td> </td><td>684,502 684,502</td><td>​ ​</td></tr><tr><td>Principal payments on long-term debt Principal payments on long-term debt</td><td>​ ​</td><td> </td><td>( 452,855 ) ( 452,855 )</td><td>​ ​</td><td> </td><td>( 447,604 ) ( 447,604 )</td><td>​ ​</td><td> </td><td>( 415,050 ) ( 415,050 )</td><td>​ ​</td></tr><tr><td>Payment of debt issuance cost Payment of debt issuance cost</td><td>​ ​</td><td>​ ​</td><td>( 670 ) ( 670 )</td><td>​ ​</td><td>​ ​</td><td>( 175 ) ( 175 )</td><td>​ ​</td><td>​ ​</td><td>( 2,178 ) ( 2,178 )</td><td>​ ​</td></tr><tr><td>Net proceeds from issuance of common stock Net proceeds from issuance of common stock</td><td>​ ​</td><td> </td><td>2,864 2,864</td><td>​ ​</td><td> </td><td>2,811 2,811</td><td>​ ​</td><td> </td><td>2,957 2,957</td><td>​ ​</td></tr><tr><td>Employee income tax paid on vested equity awards Employee income tax paid on vested equity awards</td><td>​ ​</td><td>​ ​</td><td>( 6,930 ) ( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>( 585 ) ( 585 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 ) ( 1,150 )</td><td>​ ​</td></tr><tr><td>Purchase of treasury stock and related excise tax Purchase of treasury stock and related excise tax</td><td>​ ​</td><td> </td><td>( 43,324 ) ( 43,324 )</td><td>​ ​</td><td> </td><td>( 291,949 ) ( 291,949 )</td><td>​ ​</td><td> </td><td>β€” β€”</td><td>​ ​</td></tr><tr><td>NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES</td><td>​ ​</td><td> </td><td>( 384,750 ) ( 384,750 )</td><td>​ ​</td><td> </td><td>( 667,813 ) ( 667,813 )</td><td>​ ​</td><td> </td><td>269,081 269,081</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Increase (decrease) in cash and cash equivalents Increase (decrease) in cash and cash equivalents</td><td>​ ​</td><td> </td><td>79,085 79,085</td><td>​ ​</td><td> </td><td>45,293 45,293</td><td>​ ​</td><td> </td><td>( 155,437 ) ( 155,437 )</td><td>​ ​</td></tr><tr><td>Cash and cash equivalents at beginning of period Cash and cash equivalents at beginning of period</td><td>​ ​</td><td> </td><td>148,277 148,277</td><td>​ ​</td><td> </td><td>102,984 102,984</td><td>​ ​</td><td> </td><td>258,421 258,421</td><td>​ ​</td></tr><tr><td>CASH AND CASH EQUIVALENTS AT END OF PERIOD CASH AND CASH EQUIVALENTS AT END OF PERIOD</td><td>​ ​</td><td>$ $</td><td>227,362 227,362</td><td>​ ​</td><td>$ $</td><td>148,277 148,277</td><td>​ ​</td><td>$ $</td><td>102,984 102,984</td><td>​ ​</td></tr></table>
table
8245
monetaryItemType
table: <entity> 8245 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:GainLossOnSaleOfPropertyPlantEquipment
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Year Ended DecemberΒ 31,</td></tr><tr><td>​ ​</td><td></td><td>2024</td><td>​ ​</td><td>2023</td><td>​ ​</td><td>​ ​</td><td>2022</td><td></td></tr><tr><td>CASH FLOWS FROM OPERATING ACTIVITIES: CASH FLOWS FROM OPERATING ACTIVITIES:</td><td>​ ​</td><td>​ ​</td><td> </td><td> </td><td>​ ​</td><td> </td><td> </td><td>​ ​</td><td> </td><td>​ ​</td></tr><tr><td>Net income Net income</td><td>​ ​</td><td>$ $</td><td>322,962 322,962</td><td>​ ​</td><td>$ $</td><td>34,342 34,342</td><td>​ ​</td><td>$ $</td><td>72,953 72,953</td><td>​ ​</td></tr><tr><td>Adjustments to reconcile net income to net cash provided by operating activities: Adjustments to reconcile net income to net cash provided by operating activities:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Depreciation and amortization Depreciation and amortization</td><td>​ ​</td><td> </td><td>383,880 383,880</td><td>​ ​</td><td> </td><td>383,115 383,115</td><td>​ ​</td><td> </td><td>394,552 394,552</td><td>​ ​</td></tr><tr><td>Stock based compensation expense Stock based compensation expense</td><td>​ ​</td><td> </td><td>19,864 19,864</td><td>​ ​</td><td> </td><td>17,125 17,125</td><td>​ ​</td><td> </td><td>9,159 9,159</td><td>​ ​</td></tr><tr><td>Decrease in credit loss reserves Decrease in credit loss reserves</td><td>​ ​</td><td>​ ​</td><td>( 3,628 ) ( 3,628 )</td><td>​ ​</td><td>​ ​</td><td>( 185 ) ( 185 )</td><td>​ ​</td><td>​ ​</td><td>( 4,591 ) ( 4,591 )</td><td>​ ​</td></tr><tr><td>Gain on disposal of fixed assets Gain on disposal of fixed assets</td><td>​ ​</td><td>​ ​</td><td>( 8,245 ) ( 8,245 )</td><td>​ ​</td><td>​ ​</td><td>( 14,295 ) ( 14,295 )</td><td>​ ​</td><td>​ ​</td><td>( 7,948 ) ( 7,948 )</td><td>​ ​</td></tr><tr><td>Loss (gain) on investments in other companies Loss (gain) on investments in other companies</td><td>​ ​</td><td>​ ​</td><td>6,815 6,815</td><td>​ ​</td><td>​ ​</td><td>479 479</td><td>​ ​</td><td>​ ​</td><td>( 11,380 ) ( 11,380 )</td><td>​ ​</td></tr><tr><td>Net increase in deferred income taxes Net increase in deferred income taxes</td><td>​ ​</td><td> </td><td>100,368 100,368</td><td>​ ​</td><td> </td><td>539 539</td><td>​ ​</td><td> </td><td>23,825 23,825</td><td>​ ​</td></tr><tr><td>Impairment (gain) on assets held for sale Impairment (gain) on assets held for sale</td><td>​ ​</td><td>​ ​</td><td>( 4,157 ) ( 4,157 )</td><td>​ ​</td><td>​ ​</td><td>2,318 2,318</td><td>​ ​</td><td>​ ​</td><td>51,384 51,384</td><td>​ ​</td></tr><tr><td>Changes in operating assets and liabilities: Changes in operating assets and liabilities:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Decrease (increase) in receivables Decrease (increase) in receivables</td><td>​ ​</td><td> </td><td>( 41,171 ) ( 41,171 )</td><td>​ ​</td><td> </td><td>19,818 19,818</td><td>​ ​</td><td> </td><td>( 32,959 ) ( 32,959 )</td><td>​ ​</td></tr><tr><td>Decrease (increase) in income tax receivable Decrease (increase) in income tax receivable</td><td>​ ​</td><td> </td><td>( 7,504 ) ( 7,504 )</td><td>​ ​</td><td> </td><td>997 997</td><td>​ ​</td><td> </td><td>7,815 7,815</td><td>​ ​</td></tr><tr><td>Increase in inventories Increase in inventories</td><td>​ ​</td><td> </td><td>( 11,888 ) ( 11,888 )</td><td>​ ​</td><td> </td><td>( 3,905 ) ( 3,905 )</td><td>​ ​</td><td> </td><td>( 16,628 ) ( 16,628 )</td><td>​ ​</td></tr><tr><td>Decrease (increase) in other current assets Decrease (increase) in other current assets</td><td>​ ​</td><td> </td><td>( 13,813 ) ( 13,813 )</td><td>​ ​</td><td> </td><td>1,593 1,593</td><td>​ ​</td><td> </td><td>( 2,871 ) ( 2,871 )</td><td>​ ​</td></tr><tr><td>Decrease (increase) in operating lease right-of-use assets Decrease (increase) in operating lease right-of-use assets</td><td>​ ​</td><td>​ ​</td><td>( 1,004 ) ( 1,004 )</td><td>​ ​</td><td>​ ​</td><td>25,954 25,954</td><td>​ ​</td><td>​ ​</td><td>86,588 86,588</td><td>​ ​</td></tr><tr><td>Increase (decrease) in operating lease liabilities Increase (decrease) in operating lease liabilities</td><td>​ ​</td><td>​ ​</td><td>1,004 1,004</td><td>​ ​</td><td>​ ​</td><td>( 54,984 ) ( 54,984 )</td><td>​ ​</td><td>​ ​</td><td>( 76,812 ) ( 76,812 )</td><td>​ ​</td></tr><tr><td>Increase (decrease) in deferred revenue Increase (decrease) in deferred revenue</td><td>​ ​</td><td>​ ​</td><td>( 40,012 ) ( 40,012 )</td><td>​ ​</td><td>​ ​</td><td>229,862 229,862</td><td>​ ​</td><td>​ ​</td><td>40,812 40,812</td><td>​ ​</td></tr><tr><td>Decrease (increase) in unbilled revenue Decrease (increase) in unbilled revenue</td><td>​ ​</td><td>​ ​</td><td>( 7,871 ) ( 7,871 )</td><td>​ ​</td><td>​ ​</td><td>12,601 12,601</td><td>​ ​</td><td>​ ​</td><td>( 11,491 ) ( 11,491 )</td><td>​ ​</td></tr><tr><td>Increase (decrease) in accounts payable and other current liabilities Increase (decrease) in accounts payable and other current liabilities</td><td>​ ​</td><td> </td><td>( 3,138 ) ( 3,138 )</td><td>​ ​</td><td> </td><td>80,960 80,960</td><td>​ ​</td><td> </td><td>( 42,032 ) ( 42,032 )</td><td>​ ​</td></tr><tr><td>NET CASH PROVIDED BY OPERATING ACTIVITIES NET CASH PROVIDED BY OPERATING ACTIVITIES</td><td>​ ​</td><td> </td><td>692,462 692,462</td><td>​ ​</td><td> </td><td>736,334 736,334</td><td>​ ​</td><td> </td><td>480,376 480,376</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>CASH FLOWS FROM INVESTING ACTIVITIES: CASH FLOWS FROM INVESTING ACTIVITIES:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Purchases of marketable securities Purchases of marketable securities</td><td>​ ​</td><td> </td><td>( 1,430,733 ) ( 1,430,733 )</td><td>​ ​</td><td> </td><td>( 1,339,465 ) ( 1,339,465 )</td><td>​ ​</td><td> </td><td>( 1,834,403 ) ( 1,834,403 )</td><td>​ ​</td></tr><tr><td>Sales of marketable securities Sales of marketable securities</td><td>​ ​</td><td> </td><td>1,543,256 1,543,256</td><td>​ ​</td><td> </td><td>1,600,877 1,600,877</td><td>​ ​</td><td> </td><td>1,488,359 1,488,359</td><td>​ ​</td></tr><tr><td>Acquisition of property and equipment: Acquisition of property and equipment:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Aircraft and rotable spare parts Aircraft and rotable spare parts</td><td>​ ​</td><td> </td><td>( 265,854 ) ( 265,854 )</td><td>​ ​</td><td> </td><td>( 238,068 ) ( 238,068 )</td><td>​ ​</td><td> </td><td>( 632,460 ) ( 632,460 )</td><td>​ ​</td></tr><tr><td>Buildings and ground equipment Buildings and ground equipment</td><td>​ ​</td><td> </td><td>( 44,895 ) ( 44,895 )</td><td>​ ​</td><td> </td><td>( 13,258 ) ( 13,258 )</td><td>​ ​</td><td> </td><td>( 13,031 ) ( 13,031 )</td><td>​ ​</td></tr><tr><td>Proceeds from the sale of property and equipment Proceeds from the sale of property and equipment</td><td>​ ​</td><td> </td><td>5,154 5,154</td><td>​ ​</td><td> </td><td>15,879 15,879</td><td>​ ​</td><td> </td><td>16,983 16,983</td><td>​ ​</td></tr><tr><td>Deposits on aircraft Deposits on aircraft</td><td>​ ​</td><td>​ ​</td><td>( 17,535 ) ( 17,535 )</td><td>​ ​</td><td>​ ​</td><td>( 65,000 ) ( 65,000 )</td><td>​ ​</td><td>​ ​</td><td>( 37,100 ) ( 37,100 )</td><td>​ ​</td></tr><tr><td>Aircraft deposits applied towards acquired aircraft Aircraft deposits applied towards acquired aircraft</td><td>​ ​</td><td>​ ​</td><td>β€” β€”</td><td>​ ​</td><td>​ ​</td><td>11,649 11,649</td><td>​ ​</td><td>​ ​</td><td>138,383 138,383</td><td>​ ​</td></tr><tr><td>Decrease (increase) in investments and financing activities with third parties and other assets Decrease (increase) in investments and financing activities with third parties and other assets</td><td>​ ​</td><td> </td><td>( 18,020 ) ( 18,020 )</td><td>​ ​</td><td> </td><td>4,158 4,158</td><td>​ ​</td><td> </td><td>( 31,625 ) ( 31,625 )</td><td>​ ​</td></tr><tr><td>NET CASH USED IN INVESTING ACTIVITIES NET CASH USED IN INVESTING ACTIVITIES</td><td>​ ​</td><td> </td><td>( 228,627 ) ( 228,627 )</td><td>​ ​</td><td> </td><td>( 23,228 ) ( 23,228 )</td><td>​ ​</td><td> </td><td>( 904,894 ) ( 904,894 )</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>CASH FLOWS FROM FINANCING ACTIVITIES: CASH FLOWS FROM FINANCING ACTIVITIES:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Proceeds from issuance of long-term debt Proceeds from issuance of long-term debt</td><td>​ ​</td><td> </td><td>116,165 116,165</td><td>​ ​</td><td> </td><td>69,689 69,689</td><td>​ ​</td><td> </td><td>684,502 684,502</td><td>​ ​</td></tr><tr><td>Principal payments on long-term debt Principal payments on long-term debt</td><td>​ ​</td><td> </td><td>( 452,855 ) ( 452,855 )</td><td>​ ​</td><td> </td><td>( 447,604 ) ( 447,604 )</td><td>​ ​</td><td> </td><td>( 415,050 ) ( 415,050 )</td><td>​ ​</td></tr><tr><td>Payment of debt issuance cost Payment of debt issuance cost</td><td>​ ​</td><td>​ ​</td><td>( 670 ) ( 670 )</td><td>​ ​</td><td>​ ​</td><td>( 175 ) ( 175 )</td><td>​ ​</td><td>​ ​</td><td>( 2,178 ) ( 2,178 )</td><td>​ ​</td></tr><tr><td>Net proceeds from issuance of common stock Net proceeds from issuance of common stock</td><td>​ ​</td><td> </td><td>2,864 2,864</td><td>​ ​</td><td> </td><td>2,811 2,811</td><td>​ ​</td><td> </td><td>2,957 2,957</td><td>​ ​</td></tr><tr><td>Employee income tax paid on vested equity awards Employee income tax paid on vested equity awards</td><td>​ ​</td><td>​ ​</td><td>( 6,930 ) ( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>( 585 ) ( 585 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 ) ( 1,150 )</td><td>​ ​</td></tr><tr><td>Purchase of treasury stock and related excise tax Purchase of treasury stock and related excise tax</td><td>​ ​</td><td> </td><td>( 43,324 ) ( 43,324 )</td><td>​ ​</td><td> </td><td>( 291,949 ) ( 291,949 )</td><td>​ ​</td><td> </td><td>β€” β€”</td><td>​ ​</td></tr><tr><td>NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES</td><td>​ ​</td><td> </td><td>( 384,750 ) ( 384,750 )</td><td>​ ​</td><td> </td><td>( 667,813 ) ( 667,813 )</td><td>​ ​</td><td> </td><td>269,081 269,081</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Increase (decrease) in cash and cash equivalents Increase (decrease) in cash and cash equivalents</td><td>​ ​</td><td> </td><td>79,085 79,085</td><td>​ ​</td><td> </td><td>45,293 45,293</td><td>​ ​</td><td> </td><td>( 155,437 ) ( 155,437 )</td><td>​ ​</td></tr><tr><td>Cash and cash equivalents at beginning of period Cash and cash equivalents at beginning of period</td><td>​ ​</td><td> </td><td>148,277 148,277</td><td>​ ​</td><td> </td><td>102,984 102,984</td><td>​ ​</td><td> </td><td>258,421 258,421</td><td>​ ​</td></tr><tr><td>CASH AND CASH EQUIVALENTS AT END OF PERIOD CASH AND CASH EQUIVALENTS AT END OF PERIOD</td><td>​ ​</td><td>$ $</td><td>227,362 227,362</td><td>​ ​</td><td>$ $</td><td>148,277 148,277</td><td>​ ​</td><td>$ $</td><td>102,984 102,984</td><td>​ ​</td></tr></table>
table
14295
monetaryItemType
table: <entity> 14295 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:GainLossOnSaleOfPropertyPlantEquipment
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Year Ended DecemberΒ 31,</td></tr><tr><td>​ ​</td><td></td><td>2024</td><td>​ ​</td><td>2023</td><td>​ ​</td><td>​ ​</td><td>2022</td><td></td></tr><tr><td>CASH FLOWS FROM OPERATING ACTIVITIES: CASH FLOWS FROM OPERATING ACTIVITIES:</td><td>​ ​</td><td>​ ​</td><td> </td><td> </td><td>​ ​</td><td> </td><td> </td><td>​ ​</td><td> </td><td>​ ​</td></tr><tr><td>Net income Net income</td><td>​ ​</td><td>$ $</td><td>322,962 322,962</td><td>​ ​</td><td>$ $</td><td>34,342 34,342</td><td>​ ​</td><td>$ $</td><td>72,953 72,953</td><td>​ ​</td></tr><tr><td>Adjustments to reconcile net income to net cash provided by operating activities: Adjustments to reconcile net income to net cash provided by operating activities:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Depreciation and amortization Depreciation and amortization</td><td>​ ​</td><td> </td><td>383,880 383,880</td><td>​ ​</td><td> </td><td>383,115 383,115</td><td>​ ​</td><td> </td><td>394,552 394,552</td><td>​ ​</td></tr><tr><td>Stock based compensation expense Stock based compensation expense</td><td>​ ​</td><td> </td><td>19,864 19,864</td><td>​ ​</td><td> </td><td>17,125 17,125</td><td>​ ​</td><td> </td><td>9,159 9,159</td><td>​ ​</td></tr><tr><td>Decrease in credit loss reserves Decrease in credit loss reserves</td><td>​ ​</td><td>​ ​</td><td>( 3,628 ) ( 3,628 )</td><td>​ ​</td><td>​ ​</td><td>( 185 ) ( 185 )</td><td>​ ​</td><td>​ ​</td><td>( 4,591 ) ( 4,591 )</td><td>​ ​</td></tr><tr><td>Gain on disposal of fixed assets Gain on disposal of fixed assets</td><td>​ ​</td><td>​ ​</td><td>( 8,245 ) ( 8,245 )</td><td>​ ​</td><td>​ ​</td><td>( 14,295 ) ( 14,295 )</td><td>​ ​</td><td>​ ​</td><td>( 7,948 ) ( 7,948 )</td><td>​ ​</td></tr><tr><td>Loss (gain) on investments in other companies Loss (gain) on investments in other companies</td><td>​ ​</td><td>​ ​</td><td>6,815 6,815</td><td>​ ​</td><td>​ ​</td><td>479 479</td><td>​ ​</td><td>​ ​</td><td>( 11,380 ) ( 11,380 )</td><td>​ ​</td></tr><tr><td>Net increase in deferred income taxes Net increase in deferred income taxes</td><td>​ ​</td><td> </td><td>100,368 100,368</td><td>​ ​</td><td> </td><td>539 539</td><td>​ ​</td><td> </td><td>23,825 23,825</td><td>​ ​</td></tr><tr><td>Impairment (gain) on assets held for sale Impairment (gain) on assets held for sale</td><td>​ ​</td><td>​ ​</td><td>( 4,157 ) ( 4,157 )</td><td>​ ​</td><td>​ ​</td><td>2,318 2,318</td><td>​ ​</td><td>​ ​</td><td>51,384 51,384</td><td>​ ​</td></tr><tr><td>Changes in operating assets and liabilities: Changes in operating assets and liabilities:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Decrease (increase) in receivables Decrease (increase) in receivables</td><td>​ ​</td><td> </td><td>( 41,171 ) ( 41,171 )</td><td>​ ​</td><td> </td><td>19,818 19,818</td><td>​ ​</td><td> </td><td>( 32,959 ) ( 32,959 )</td><td>​ ​</td></tr><tr><td>Decrease (increase) in income tax receivable Decrease (increase) in income tax receivable</td><td>​ ​</td><td> </td><td>( 7,504 ) ( 7,504 )</td><td>​ ​</td><td> </td><td>997 997</td><td>​ ​</td><td> </td><td>7,815 7,815</td><td>​ ​</td></tr><tr><td>Increase in inventories Increase in inventories</td><td>​ ​</td><td> </td><td>( 11,888 ) ( 11,888 )</td><td>​ ​</td><td> </td><td>( 3,905 ) ( 3,905 )</td><td>​ ​</td><td> </td><td>( 16,628 ) ( 16,628 )</td><td>​ ​</td></tr><tr><td>Decrease (increase) in other current assets Decrease (increase) in other current assets</td><td>​ ​</td><td> </td><td>( 13,813 ) ( 13,813 )</td><td>​ ​</td><td> </td><td>1,593 1,593</td><td>​ ​</td><td> </td><td>( 2,871 ) ( 2,871 )</td><td>​ ​</td></tr><tr><td>Decrease (increase) in operating lease right-of-use assets Decrease (increase) in operating lease right-of-use assets</td><td>​ ​</td><td>​ ​</td><td>( 1,004 ) ( 1,004 )</td><td>​ ​</td><td>​ ​</td><td>25,954 25,954</td><td>​ ​</td><td>​ ​</td><td>86,588 86,588</td><td>​ ​</td></tr><tr><td>Increase (decrease) in operating lease liabilities Increase (decrease) in operating lease liabilities</td><td>​ ​</td><td>​ ​</td><td>1,004 1,004</td><td>​ ​</td><td>​ ​</td><td>( 54,984 ) ( 54,984 )</td><td>​ ​</td><td>​ ​</td><td>( 76,812 ) ( 76,812 )</td><td>​ ​</td></tr><tr><td>Increase (decrease) in deferred revenue Increase (decrease) in deferred revenue</td><td>​ ​</td><td>​ ​</td><td>( 40,012 ) ( 40,012 )</td><td>​ ​</td><td>​ ​</td><td>229,862 229,862</td><td>​ ​</td><td>​ ​</td><td>40,812 40,812</td><td>​ ​</td></tr><tr><td>Decrease (increase) in unbilled revenue Decrease (increase) in unbilled revenue</td><td>​ ​</td><td>​ ​</td><td>( 7,871 ) ( 7,871 )</td><td>​ ​</td><td>​ ​</td><td>12,601 12,601</td><td>​ ​</td><td>​ ​</td><td>( 11,491 ) ( 11,491 )</td><td>​ ​</td></tr><tr><td>Increase (decrease) in accounts payable and other current liabilities Increase (decrease) in accounts payable and other current liabilities</td><td>​ ​</td><td> </td><td>( 3,138 ) ( 3,138 )</td><td>​ ​</td><td> </td><td>80,960 80,960</td><td>​ ​</td><td> </td><td>( 42,032 ) ( 42,032 )</td><td>​ ​</td></tr><tr><td>NET CASH PROVIDED BY OPERATING ACTIVITIES NET CASH PROVIDED BY OPERATING ACTIVITIES</td><td>​ ​</td><td> </td><td>692,462 692,462</td><td>​ ​</td><td> </td><td>736,334 736,334</td><td>​ ​</td><td> </td><td>480,376 480,376</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>CASH FLOWS FROM INVESTING ACTIVITIES: CASH FLOWS FROM INVESTING ACTIVITIES:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Purchases of marketable securities Purchases of marketable securities</td><td>​ ​</td><td> </td><td>( 1,430,733 ) ( 1,430,733 )</td><td>​ ​</td><td> </td><td>( 1,339,465 ) ( 1,339,465 )</td><td>​ ​</td><td> </td><td>( 1,834,403 ) ( 1,834,403 )</td><td>​ ​</td></tr><tr><td>Sales of marketable securities Sales of marketable securities</td><td>​ ​</td><td> </td><td>1,543,256 1,543,256</td><td>​ ​</td><td> </td><td>1,600,877 1,600,877</td><td>​ ​</td><td> </td><td>1,488,359 1,488,359</td><td>​ ​</td></tr><tr><td>Acquisition of property and equipment: Acquisition of property and equipment:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Aircraft and rotable spare parts Aircraft and rotable spare parts</td><td>​ ​</td><td> </td><td>( 265,854 ) ( 265,854 )</td><td>​ ​</td><td> </td><td>( 238,068 ) ( 238,068 )</td><td>​ ​</td><td> </td><td>( 632,460 ) ( 632,460 )</td><td>​ ​</td></tr><tr><td>Buildings and ground equipment Buildings and ground equipment</td><td>​ ​</td><td> </td><td>( 44,895 ) ( 44,895 )</td><td>​ ​</td><td> </td><td>( 13,258 ) ( 13,258 )</td><td>​ ​</td><td> </td><td>( 13,031 ) ( 13,031 )</td><td>​ ​</td></tr><tr><td>Proceeds from the sale of property and equipment Proceeds from the sale of property and equipment</td><td>​ ​</td><td> </td><td>5,154 5,154</td><td>​ ​</td><td> </td><td>15,879 15,879</td><td>​ ​</td><td> </td><td>16,983 16,983</td><td>​ ​</td></tr><tr><td>Deposits on aircraft Deposits on aircraft</td><td>​ ​</td><td>​ ​</td><td>( 17,535 ) ( 17,535 )</td><td>​ ​</td><td>​ ​</td><td>( 65,000 ) ( 65,000 )</td><td>​ ​</td><td>​ ​</td><td>( 37,100 ) ( 37,100 )</td><td>​ ​</td></tr><tr><td>Aircraft deposits applied towards acquired aircraft Aircraft deposits applied towards acquired aircraft</td><td>​ ​</td><td>​ ​</td><td>β€” β€”</td><td>​ ​</td><td>​ ​</td><td>11,649 11,649</td><td>​ ​</td><td>​ ​</td><td>138,383 138,383</td><td>​ ​</td></tr><tr><td>Decrease (increase) in investments and financing activities with third parties and other assets Decrease (increase) in investments and financing activities with third parties and other assets</td><td>​ ​</td><td> </td><td>( 18,020 ) ( 18,020 )</td><td>​ ​</td><td> </td><td>4,158 4,158</td><td>​ ​</td><td> </td><td>( 31,625 ) ( 31,625 )</td><td>​ ​</td></tr><tr><td>NET CASH USED IN INVESTING ACTIVITIES NET CASH USED IN INVESTING ACTIVITIES</td><td>​ ​</td><td> </td><td>( 228,627 ) ( 228,627 )</td><td>​ ​</td><td> </td><td>( 23,228 ) ( 23,228 )</td><td>​ ​</td><td> </td><td>( 904,894 ) ( 904,894 )</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>CASH FLOWS FROM FINANCING ACTIVITIES: CASH FLOWS FROM FINANCING ACTIVITIES:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Proceeds from issuance of long-term debt Proceeds from issuance of long-term debt</td><td>​ ​</td><td> </td><td>116,165 116,165</td><td>​ ​</td><td> </td><td>69,689 69,689</td><td>​ ​</td><td> </td><td>684,502 684,502</td><td>​ ​</td></tr><tr><td>Principal payments on long-term debt Principal payments on long-term debt</td><td>​ ​</td><td> </td><td>( 452,855 ) ( 452,855 )</td><td>​ ​</td><td> </td><td>( 447,604 ) ( 447,604 )</td><td>​ ​</td><td> </td><td>( 415,050 ) ( 415,050 )</td><td>​ ​</td></tr><tr><td>Payment of debt issuance cost Payment of debt issuance cost</td><td>​ ​</td><td>​ ​</td><td>( 670 ) ( 670 )</td><td>​ ​</td><td>​ ​</td><td>( 175 ) ( 175 )</td><td>​ ​</td><td>​ ​</td><td>( 2,178 ) ( 2,178 )</td><td>​ ​</td></tr><tr><td>Net proceeds from issuance of common stock Net proceeds from issuance of common stock</td><td>​ ​</td><td> </td><td>2,864 2,864</td><td>​ ​</td><td> </td><td>2,811 2,811</td><td>​ ​</td><td> </td><td>2,957 2,957</td><td>​ ​</td></tr><tr><td>Employee income tax paid on vested equity awards Employee income tax paid on vested equity awards</td><td>​ ​</td><td>​ ​</td><td>( 6,930 ) ( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>( 585 ) ( 585 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 ) ( 1,150 )</td><td>​ ​</td></tr><tr><td>Purchase of treasury stock and related excise tax Purchase of treasury stock and related excise tax</td><td>​ ​</td><td> </td><td>( 43,324 ) ( 43,324 )</td><td>​ ​</td><td> </td><td>( 291,949 ) ( 291,949 )</td><td>​ ​</td><td> </td><td>β€” β€”</td><td>​ ​</td></tr><tr><td>NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES</td><td>​ ​</td><td> </td><td>( 384,750 ) ( 384,750 )</td><td>​ ​</td><td> </td><td>( 667,813 ) ( 667,813 )</td><td>​ ​</td><td> </td><td>269,081 269,081</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Increase (decrease) in cash and cash equivalents Increase (decrease) in cash and cash equivalents</td><td>​ ​</td><td> </td><td>79,085 79,085</td><td>​ ​</td><td> </td><td>45,293 45,293</td><td>​ ​</td><td> </td><td>( 155,437 ) ( 155,437 )</td><td>​ ​</td></tr><tr><td>Cash and cash equivalents at beginning of period Cash and cash equivalents at beginning of period</td><td>​ ​</td><td> </td><td>148,277 148,277</td><td>​ ​</td><td> </td><td>102,984 102,984</td><td>​ ​</td><td> </td><td>258,421 258,421</td><td>​ ​</td></tr><tr><td>CASH AND CASH EQUIVALENTS AT END OF PERIOD CASH AND CASH EQUIVALENTS AT END OF PERIOD</td><td>​ ​</td><td>$ $</td><td>227,362 227,362</td><td>​ ​</td><td>$ $</td><td>148,277 148,277</td><td>​ ​</td><td>$ $</td><td>102,984 102,984</td><td>​ ​</td></tr></table>
table
7948
monetaryItemType
table: <entity> 7948 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:GainLossOnSaleOfPropertyPlantEquipment
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Year Ended DecemberΒ 31,</td></tr><tr><td>​ ​</td><td></td><td>2024</td><td>​ ​</td><td>2023</td><td>​ ​</td><td>​ ​</td><td>2022</td><td></td></tr><tr><td>CASH FLOWS FROM OPERATING ACTIVITIES: CASH FLOWS FROM OPERATING ACTIVITIES:</td><td>​ ​</td><td>​ ​</td><td> </td><td> </td><td>​ ​</td><td> </td><td> </td><td>​ ​</td><td> </td><td>​ ​</td></tr><tr><td>Net income Net income</td><td>​ ​</td><td>$ $</td><td>322,962 322,962</td><td>​ ​</td><td>$ $</td><td>34,342 34,342</td><td>​ ​</td><td>$ $</td><td>72,953 72,953</td><td>​ ​</td></tr><tr><td>Adjustments to reconcile net income to net cash provided by operating activities: Adjustments to reconcile net income to net cash provided by operating activities:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Depreciation and amortization Depreciation and amortization</td><td>​ ​</td><td> </td><td>383,880 383,880</td><td>​ ​</td><td> </td><td>383,115 383,115</td><td>​ ​</td><td> </td><td>394,552 394,552</td><td>​ ​</td></tr><tr><td>Stock based compensation expense Stock based compensation expense</td><td>​ ​</td><td> </td><td>19,864 19,864</td><td>​ ​</td><td> </td><td>17,125 17,125</td><td>​ ​</td><td> </td><td>9,159 9,159</td><td>​ ​</td></tr><tr><td>Decrease in credit loss reserves Decrease in credit loss reserves</td><td>​ ​</td><td>​ ​</td><td>( 3,628 ) ( 3,628 )</td><td>​ ​</td><td>​ ​</td><td>( 185 ) ( 185 )</td><td>​ ​</td><td>​ ​</td><td>( 4,591 ) ( 4,591 )</td><td>​ ​</td></tr><tr><td>Gain on disposal of fixed assets Gain on disposal of fixed assets</td><td>​ ​</td><td>​ ​</td><td>( 8,245 ) ( 8,245 )</td><td>​ ​</td><td>​ ​</td><td>( 14,295 ) ( 14,295 )</td><td>​ ​</td><td>​ ​</td><td>( 7,948 ) ( 7,948 )</td><td>​ ​</td></tr><tr><td>Loss (gain) on investments in other companies Loss (gain) on investments in other companies</td><td>​ ​</td><td>​ ​</td><td>6,815 6,815</td><td>​ ​</td><td>​ ​</td><td>479 479</td><td>​ ​</td><td>​ ​</td><td>( 11,380 ) ( 11,380 )</td><td>​ ​</td></tr><tr><td>Net increase in deferred income taxes Net increase in deferred income taxes</td><td>​ ​</td><td> </td><td>100,368 100,368</td><td>​ ​</td><td> </td><td>539 539</td><td>​ ​</td><td> </td><td>23,825 23,825</td><td>​ ​</td></tr><tr><td>Impairment (gain) on assets held for sale Impairment (gain) on assets held for sale</td><td>​ ​</td><td>​ ​</td><td>( 4,157 ) ( 4,157 )</td><td>​ ​</td><td>​ ​</td><td>2,318 2,318</td><td>​ ​</td><td>​ ​</td><td>51,384 51,384</td><td>​ ​</td></tr><tr><td>Changes in operating assets and liabilities: Changes in operating assets and liabilities:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Decrease (increase) in receivables Decrease (increase) in receivables</td><td>​ ​</td><td> </td><td>( 41,171 ) ( 41,171 )</td><td>​ ​</td><td> </td><td>19,818 19,818</td><td>​ ​</td><td> </td><td>( 32,959 ) ( 32,959 )</td><td>​ ​</td></tr><tr><td>Decrease (increase) in income tax receivable Decrease (increase) in income tax receivable</td><td>​ ​</td><td> </td><td>( 7,504 ) ( 7,504 )</td><td>​ ​</td><td> </td><td>997 997</td><td>​ ​</td><td> </td><td>7,815 7,815</td><td>​ ​</td></tr><tr><td>Increase in inventories Increase in inventories</td><td>​ ​</td><td> </td><td>( 11,888 ) ( 11,888 )</td><td>​ ​</td><td> </td><td>( 3,905 ) ( 3,905 )</td><td>​ ​</td><td> </td><td>( 16,628 ) ( 16,628 )</td><td>​ ​</td></tr><tr><td>Decrease (increase) in other current assets Decrease (increase) in other current assets</td><td>​ ​</td><td> </td><td>( 13,813 ) ( 13,813 )</td><td>​ ​</td><td> </td><td>1,593 1,593</td><td>​ ​</td><td> </td><td>( 2,871 ) ( 2,871 )</td><td>​ ​</td></tr><tr><td>Decrease (increase) in operating lease right-of-use assets Decrease (increase) in operating lease right-of-use assets</td><td>​ ​</td><td>​ ​</td><td>( 1,004 ) ( 1,004 )</td><td>​ ​</td><td>​ ​</td><td>25,954 25,954</td><td>​ ​</td><td>​ ​</td><td>86,588 86,588</td><td>​ ​</td></tr><tr><td>Increase (decrease) in operating lease liabilities Increase (decrease) in operating lease liabilities</td><td>​ ​</td><td>​ ​</td><td>1,004 1,004</td><td>​ ​</td><td>​ ​</td><td>( 54,984 ) ( 54,984 )</td><td>​ ​</td><td>​ ​</td><td>( 76,812 ) ( 76,812 )</td><td>​ ​</td></tr><tr><td>Increase (decrease) in deferred revenue Increase (decrease) in deferred revenue</td><td>​ ​</td><td>​ ​</td><td>( 40,012 ) ( 40,012 )</td><td>​ ​</td><td>​ ​</td><td>229,862 229,862</td><td>​ ​</td><td>​ ​</td><td>40,812 40,812</td><td>​ ​</td></tr><tr><td>Decrease (increase) in unbilled revenue Decrease (increase) in unbilled revenue</td><td>​ ​</td><td>​ ​</td><td>( 7,871 ) ( 7,871 )</td><td>​ ​</td><td>​ ​</td><td>12,601 12,601</td><td>​ ​</td><td>​ ​</td><td>( 11,491 ) ( 11,491 )</td><td>​ ​</td></tr><tr><td>Increase (decrease) in accounts payable and other current liabilities Increase (decrease) in accounts payable and other current liabilities</td><td>​ ​</td><td> </td><td>( 3,138 ) ( 3,138 )</td><td>​ ​</td><td> </td><td>80,960 80,960</td><td>​ ​</td><td> </td><td>( 42,032 ) ( 42,032 )</td><td>​ ​</td></tr><tr><td>NET CASH PROVIDED BY OPERATING ACTIVITIES NET CASH PROVIDED BY OPERATING ACTIVITIES</td><td>​ ​</td><td> </td><td>692,462 692,462</td><td>​ ​</td><td> </td><td>736,334 736,334</td><td>​ ​</td><td> </td><td>480,376 480,376</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>CASH FLOWS FROM INVESTING ACTIVITIES: CASH FLOWS FROM INVESTING ACTIVITIES:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Purchases of marketable securities Purchases of marketable securities</td><td>​ ​</td><td> </td><td>( 1,430,733 ) ( 1,430,733 )</td><td>​ ​</td><td> </td><td>( 1,339,465 ) ( 1,339,465 )</td><td>​ ​</td><td> </td><td>( 1,834,403 ) ( 1,834,403 )</td><td>​ ​</td></tr><tr><td>Sales of marketable securities Sales of marketable securities</td><td>​ ​</td><td> </td><td>1,543,256 1,543,256</td><td>​ ​</td><td> </td><td>1,600,877 1,600,877</td><td>​ ​</td><td> </td><td>1,488,359 1,488,359</td><td>​ ​</td></tr><tr><td>Acquisition of property and equipment: Acquisition of property and equipment:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Aircraft and rotable spare parts Aircraft and rotable spare parts</td><td>​ ​</td><td> </td><td>( 265,854 ) ( 265,854 )</td><td>​ ​</td><td> </td><td>( 238,068 ) ( 238,068 )</td><td>​ ​</td><td> </td><td>( 632,460 ) ( 632,460 )</td><td>​ ​</td></tr><tr><td>Buildings and ground equipment Buildings and ground equipment</td><td>​ ​</td><td> </td><td>( 44,895 ) ( 44,895 )</td><td>​ ​</td><td> </td><td>( 13,258 ) ( 13,258 )</td><td>​ ​</td><td> </td><td>( 13,031 ) ( 13,031 )</td><td>​ ​</td></tr><tr><td>Proceeds from the sale of property and equipment Proceeds from the sale of property and equipment</td><td>​ ​</td><td> </td><td>5,154 5,154</td><td>​ ​</td><td> </td><td>15,879 15,879</td><td>​ ​</td><td> </td><td>16,983 16,983</td><td>​ ​</td></tr><tr><td>Deposits on aircraft Deposits on aircraft</td><td>​ ​</td><td>​ ​</td><td>( 17,535 ) ( 17,535 )</td><td>​ ​</td><td>​ ​</td><td>( 65,000 ) ( 65,000 )</td><td>​ ​</td><td>​ ​</td><td>( 37,100 ) ( 37,100 )</td><td>​ ​</td></tr><tr><td>Aircraft deposits applied towards acquired aircraft Aircraft deposits applied towards acquired aircraft</td><td>​ ​</td><td>​ ​</td><td>β€” β€”</td><td>​ ​</td><td>​ ​</td><td>11,649 11,649</td><td>​ ​</td><td>​ ​</td><td>138,383 138,383</td><td>​ ​</td></tr><tr><td>Decrease (increase) in investments and financing activities with third parties and other assets Decrease (increase) in investments and financing activities with third parties and other assets</td><td>​ ​</td><td> </td><td>( 18,020 ) ( 18,020 )</td><td>​ ​</td><td> </td><td>4,158 4,158</td><td>​ ​</td><td> </td><td>( 31,625 ) ( 31,625 )</td><td>​ ​</td></tr><tr><td>NET CASH USED IN INVESTING ACTIVITIES NET CASH USED IN INVESTING ACTIVITIES</td><td>​ ​</td><td> </td><td>( 228,627 ) ( 228,627 )</td><td>​ ​</td><td> </td><td>( 23,228 ) ( 23,228 )</td><td>​ ​</td><td> </td><td>( 904,894 ) ( 904,894 )</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>CASH FLOWS FROM FINANCING ACTIVITIES: CASH FLOWS FROM FINANCING ACTIVITIES:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Proceeds from issuance of long-term debt Proceeds from issuance of long-term debt</td><td>​ ​</td><td> </td><td>116,165 116,165</td><td>​ ​</td><td> </td><td>69,689 69,689</td><td>​ ​</td><td> </td><td>684,502 684,502</td><td>​ ​</td></tr><tr><td>Principal payments on long-term debt Principal payments on long-term debt</td><td>​ ​</td><td> </td><td>( 452,855 ) ( 452,855 )</td><td>​ ​</td><td> </td><td>( 447,604 ) ( 447,604 )</td><td>​ ​</td><td> </td><td>( 415,050 ) ( 415,050 )</td><td>​ ​</td></tr><tr><td>Payment of debt issuance cost Payment of debt issuance cost</td><td>​ ​</td><td>​ ​</td><td>( 670 ) ( 670 )</td><td>​ ​</td><td>​ ​</td><td>( 175 ) ( 175 )</td><td>​ ​</td><td>​ ​</td><td>( 2,178 ) ( 2,178 )</td><td>​ ​</td></tr><tr><td>Net proceeds from issuance of common stock Net proceeds from issuance of common stock</td><td>​ ​</td><td> </td><td>2,864 2,864</td><td>​ ​</td><td> </td><td>2,811 2,811</td><td>​ ​</td><td> </td><td>2,957 2,957</td><td>​ ​</td></tr><tr><td>Employee income tax paid on vested equity awards Employee income tax paid on vested equity awards</td><td>​ ​</td><td>​ ​</td><td>( 6,930 ) ( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>( 585 ) ( 585 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 ) ( 1,150 )</td><td>​ ​</td></tr><tr><td>Purchase of treasury stock and related excise tax Purchase of treasury stock and related excise tax</td><td>​ ​</td><td> </td><td>( 43,324 ) ( 43,324 )</td><td>​ ​</td><td> </td><td>( 291,949 ) ( 291,949 )</td><td>​ ​</td><td> </td><td>β€” β€”</td><td>​ ​</td></tr><tr><td>NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES</td><td>​ ​</td><td> </td><td>( 384,750 ) ( 384,750 )</td><td>​ ​</td><td> </td><td>( 667,813 ) ( 667,813 )</td><td>​ ​</td><td> </td><td>269,081 269,081</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Increase (decrease) in cash and cash equivalents Increase (decrease) in cash and cash equivalents</td><td>​ ​</td><td> </td><td>79,085 79,085</td><td>​ ​</td><td> </td><td>45,293 45,293</td><td>​ ​</td><td> </td><td>( 155,437 ) ( 155,437 )</td><td>​ ​</td></tr><tr><td>Cash and cash equivalents at beginning of period Cash and cash equivalents at beginning of period</td><td>​ ​</td><td> </td><td>148,277 148,277</td><td>​ ​</td><td> </td><td>102,984 102,984</td><td>​ ​</td><td> </td><td>258,421 258,421</td><td>​ ​</td></tr><tr><td>CASH AND CASH EQUIVALENTS AT END OF PERIOD CASH AND CASH EQUIVALENTS AT END OF PERIOD</td><td>​ ​</td><td>$ $</td><td>227,362 227,362</td><td>​ ​</td><td>$ $</td><td>148,277 148,277</td><td>​ ​</td><td>$ $</td><td>102,984 102,984</td><td>​ ​</td></tr></table>
table
6815
monetaryItemType
table: <entity> 6815 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:GainLossOnSaleOfInvestments
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Year Ended DecemberΒ 31,</td></tr><tr><td>​ ​</td><td></td><td>2024</td><td>​ ​</td><td>2023</td><td>​ ​</td><td>​ ​</td><td>2022</td><td></td></tr><tr><td>CASH FLOWS FROM OPERATING ACTIVITIES: CASH FLOWS FROM OPERATING ACTIVITIES:</td><td>​ ​</td><td>​ ​</td><td> </td><td> </td><td>​ ​</td><td> </td><td> </td><td>​ ​</td><td> </td><td>​ ​</td></tr><tr><td>Net income Net income</td><td>​ ​</td><td>$ $</td><td>322,962 322,962</td><td>​ ​</td><td>$ $</td><td>34,342 34,342</td><td>​ ​</td><td>$ $</td><td>72,953 72,953</td><td>​ ​</td></tr><tr><td>Adjustments to reconcile net income to net cash provided by operating activities: Adjustments to reconcile net income to net cash provided by operating activities:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Depreciation and amortization Depreciation and amortization</td><td>​ ​</td><td> </td><td>383,880 383,880</td><td>​ ​</td><td> </td><td>383,115 383,115</td><td>​ ​</td><td> </td><td>394,552 394,552</td><td>​ ​</td></tr><tr><td>Stock based compensation expense Stock based compensation expense</td><td>​ ​</td><td> </td><td>19,864 19,864</td><td>​ ​</td><td> </td><td>17,125 17,125</td><td>​ ​</td><td> </td><td>9,159 9,159</td><td>​ ​</td></tr><tr><td>Decrease in credit loss reserves Decrease in credit loss reserves</td><td>​ ​</td><td>​ ​</td><td>( 3,628 ) ( 3,628 )</td><td>​ ​</td><td>​ ​</td><td>( 185 ) ( 185 )</td><td>​ ​</td><td>​ ​</td><td>( 4,591 ) ( 4,591 )</td><td>​ ​</td></tr><tr><td>Gain on disposal of fixed assets Gain on disposal of fixed assets</td><td>​ ​</td><td>​ ​</td><td>( 8,245 ) ( 8,245 )</td><td>​ ​</td><td>​ ​</td><td>( 14,295 ) ( 14,295 )</td><td>​ ​</td><td>​ ​</td><td>( 7,948 ) ( 7,948 )</td><td>​ ​</td></tr><tr><td>Loss (gain) on investments in other companies Loss (gain) on investments in other companies</td><td>​ ​</td><td>​ ​</td><td>6,815 6,815</td><td>​ ​</td><td>​ ​</td><td>479 479</td><td>​ ​</td><td>​ ​</td><td>( 11,380 ) ( 11,380 )</td><td>​ ​</td></tr><tr><td>Net increase in deferred income taxes Net increase in deferred income taxes</td><td>​ ​</td><td> </td><td>100,368 100,368</td><td>​ ​</td><td> </td><td>539 539</td><td>​ ​</td><td> </td><td>23,825 23,825</td><td>​ ​</td></tr><tr><td>Impairment (gain) on assets held for sale Impairment (gain) on assets held for sale</td><td>​ ​</td><td>​ ​</td><td>( 4,157 ) ( 4,157 )</td><td>​ ​</td><td>​ ​</td><td>2,318 2,318</td><td>​ ​</td><td>​ ​</td><td>51,384 51,384</td><td>​ ​</td></tr><tr><td>Changes in operating assets and liabilities: Changes in operating assets and liabilities:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Decrease (increase) in receivables Decrease (increase) in receivables</td><td>​ ​</td><td> </td><td>( 41,171 ) ( 41,171 )</td><td>​ ​</td><td> </td><td>19,818 19,818</td><td>​ ​</td><td> </td><td>( 32,959 ) ( 32,959 )</td><td>​ ​</td></tr><tr><td>Decrease (increase) in income tax receivable Decrease (increase) in income tax receivable</td><td>​ ​</td><td> </td><td>( 7,504 ) ( 7,504 )</td><td>​ ​</td><td> </td><td>997 997</td><td>​ ​</td><td> </td><td>7,815 7,815</td><td>​ ​</td></tr><tr><td>Increase in inventories Increase in inventories</td><td>​ ​</td><td> </td><td>( 11,888 ) ( 11,888 )</td><td>​ ​</td><td> </td><td>( 3,905 ) ( 3,905 )</td><td>​ ​</td><td> </td><td>( 16,628 ) ( 16,628 )</td><td>​ ​</td></tr><tr><td>Decrease (increase) in other current assets Decrease (increase) in other current assets</td><td>​ ​</td><td> </td><td>( 13,813 ) ( 13,813 )</td><td>​ ​</td><td> </td><td>1,593 1,593</td><td>​ ​</td><td> </td><td>( 2,871 ) ( 2,871 )</td><td>​ ​</td></tr><tr><td>Decrease (increase) in operating lease right-of-use assets Decrease (increase) in operating lease right-of-use assets</td><td>​ ​</td><td>​ ​</td><td>( 1,004 ) ( 1,004 )</td><td>​ ​</td><td>​ ​</td><td>25,954 25,954</td><td>​ ​</td><td>​ ​</td><td>86,588 86,588</td><td>​ ​</td></tr><tr><td>Increase (decrease) in operating lease liabilities Increase (decrease) in operating lease liabilities</td><td>​ ​</td><td>​ ​</td><td>1,004 1,004</td><td>​ ​</td><td>​ ​</td><td>( 54,984 ) ( 54,984 )</td><td>​ ​</td><td>​ ​</td><td>( 76,812 ) ( 76,812 )</td><td>​ ​</td></tr><tr><td>Increase (decrease) in deferred revenue Increase (decrease) in deferred revenue</td><td>​ ​</td><td>​ ​</td><td>( 40,012 ) ( 40,012 )</td><td>​ ​</td><td>​ ​</td><td>229,862 229,862</td><td>​ ​</td><td>​ ​</td><td>40,812 40,812</td><td>​ ​</td></tr><tr><td>Decrease (increase) in unbilled revenue Decrease (increase) in unbilled revenue</td><td>​ ​</td><td>​ ​</td><td>( 7,871 ) ( 7,871 )</td><td>​ ​</td><td>​ ​</td><td>12,601 12,601</td><td>​ ​</td><td>​ ​</td><td>( 11,491 ) ( 11,491 )</td><td>​ ​</td></tr><tr><td>Increase (decrease) in accounts payable and other current liabilities Increase (decrease) in accounts payable and other current liabilities</td><td>​ ​</td><td> </td><td>( 3,138 ) ( 3,138 )</td><td>​ ​</td><td> </td><td>80,960 80,960</td><td>​ ​</td><td> </td><td>( 42,032 ) ( 42,032 )</td><td>​ ​</td></tr><tr><td>NET CASH PROVIDED BY OPERATING ACTIVITIES NET CASH PROVIDED BY OPERATING ACTIVITIES</td><td>​ ​</td><td> </td><td>692,462 692,462</td><td>​ ​</td><td> </td><td>736,334 736,334</td><td>​ ​</td><td> </td><td>480,376 480,376</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>CASH FLOWS FROM INVESTING ACTIVITIES: CASH FLOWS FROM INVESTING ACTIVITIES:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Purchases of marketable securities Purchases of marketable securities</td><td>​ ​</td><td> </td><td>( 1,430,733 ) ( 1,430,733 )</td><td>​ ​</td><td> </td><td>( 1,339,465 ) ( 1,339,465 )</td><td>​ ​</td><td> </td><td>( 1,834,403 ) ( 1,834,403 )</td><td>​ ​</td></tr><tr><td>Sales of marketable securities Sales of marketable securities</td><td>​ ​</td><td> </td><td>1,543,256 1,543,256</td><td>​ ​</td><td> </td><td>1,600,877 1,600,877</td><td>​ ​</td><td> </td><td>1,488,359 1,488,359</td><td>​ ​</td></tr><tr><td>Acquisition of property and equipment: Acquisition of property and equipment:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Aircraft and rotable spare parts Aircraft and rotable spare parts</td><td>​ ​</td><td> </td><td>( 265,854 ) ( 265,854 )</td><td>​ ​</td><td> </td><td>( 238,068 ) ( 238,068 )</td><td>​ ​</td><td> </td><td>( 632,460 ) ( 632,460 )</td><td>​ ​</td></tr><tr><td>Buildings and ground equipment Buildings and ground equipment</td><td>​ ​</td><td> </td><td>( 44,895 ) ( 44,895 )</td><td>​ ​</td><td> </td><td>( 13,258 ) ( 13,258 )</td><td>​ ​</td><td> </td><td>( 13,031 ) ( 13,031 )</td><td>​ ​</td></tr><tr><td>Proceeds from the sale of property and equipment Proceeds from the sale of property and equipment</td><td>​ ​</td><td> </td><td>5,154 5,154</td><td>​ ​</td><td> </td><td>15,879 15,879</td><td>​ ​</td><td> </td><td>16,983 16,983</td><td>​ ​</td></tr><tr><td>Deposits on aircraft Deposits on aircraft</td><td>​ ​</td><td>​ ​</td><td>( 17,535 ) ( 17,535 )</td><td>​ ​</td><td>​ ​</td><td>( 65,000 ) ( 65,000 )</td><td>​ ​</td><td>​ ​</td><td>( 37,100 ) ( 37,100 )</td><td>​ ​</td></tr><tr><td>Aircraft deposits applied towards acquired aircraft Aircraft deposits applied towards acquired aircraft</td><td>​ ​</td><td>​ ​</td><td>β€” β€”</td><td>​ ​</td><td>​ ​</td><td>11,649 11,649</td><td>​ ​</td><td>​ ​</td><td>138,383 138,383</td><td>​ ​</td></tr><tr><td>Decrease (increase) in investments and financing activities with third parties and other assets Decrease (increase) in investments and financing activities with third parties and other assets</td><td>​ ​</td><td> </td><td>( 18,020 ) ( 18,020 )</td><td>​ ​</td><td> </td><td>4,158 4,158</td><td>​ ​</td><td> </td><td>( 31,625 ) ( 31,625 )</td><td>​ ​</td></tr><tr><td>NET CASH USED IN INVESTING ACTIVITIES NET CASH USED IN INVESTING ACTIVITIES</td><td>​ ​</td><td> </td><td>( 228,627 ) ( 228,627 )</td><td>​ ​</td><td> </td><td>( 23,228 ) ( 23,228 )</td><td>​ ​</td><td> </td><td>( 904,894 ) ( 904,894 )</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>CASH FLOWS FROM FINANCING ACTIVITIES: CASH FLOWS FROM FINANCING ACTIVITIES:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Proceeds from issuance of long-term debt Proceeds from issuance of long-term debt</td><td>​ ​</td><td> </td><td>116,165 116,165</td><td>​ ​</td><td> </td><td>69,689 69,689</td><td>​ ​</td><td> </td><td>684,502 684,502</td><td>​ ​</td></tr><tr><td>Principal payments on long-term debt Principal payments on long-term debt</td><td>​ ​</td><td> </td><td>( 452,855 ) ( 452,855 )</td><td>​ ​</td><td> </td><td>( 447,604 ) ( 447,604 )</td><td>​ ​</td><td> </td><td>( 415,050 ) ( 415,050 )</td><td>​ ​</td></tr><tr><td>Payment of debt issuance cost Payment of debt issuance cost</td><td>​ ​</td><td>​ ​</td><td>( 670 ) ( 670 )</td><td>​ ​</td><td>​ ​</td><td>( 175 ) ( 175 )</td><td>​ ​</td><td>​ ​</td><td>( 2,178 ) ( 2,178 )</td><td>​ ​</td></tr><tr><td>Net proceeds from issuance of common stock Net proceeds from issuance of common stock</td><td>​ ​</td><td> </td><td>2,864 2,864</td><td>​ ​</td><td> </td><td>2,811 2,811</td><td>​ ​</td><td> </td><td>2,957 2,957</td><td>​ ​</td></tr><tr><td>Employee income tax paid on vested equity awards Employee income tax paid on vested equity awards</td><td>​ ​</td><td>​ ​</td><td>( 6,930 ) ( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>( 585 ) ( 585 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 ) ( 1,150 )</td><td>​ ​</td></tr><tr><td>Purchase of treasury stock and related excise tax Purchase of treasury stock and related excise tax</td><td>​ ​</td><td> </td><td>( 43,324 ) ( 43,324 )</td><td>​ ​</td><td> </td><td>( 291,949 ) ( 291,949 )</td><td>​ ​</td><td> </td><td>β€” β€”</td><td>​ ​</td></tr><tr><td>NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES</td><td>​ ​</td><td> </td><td>( 384,750 ) ( 384,750 )</td><td>​ ​</td><td> </td><td>( 667,813 ) ( 667,813 )</td><td>​ ​</td><td> </td><td>269,081 269,081</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Increase (decrease) in cash and cash equivalents Increase (decrease) in cash and cash equivalents</td><td>​ ​</td><td> </td><td>79,085 79,085</td><td>​ ​</td><td> </td><td>45,293 45,293</td><td>​ ​</td><td> </td><td>( 155,437 ) ( 155,437 )</td><td>​ ​</td></tr><tr><td>Cash and cash equivalents at beginning of period Cash and cash equivalents at beginning of period</td><td>​ ​</td><td> </td><td>148,277 148,277</td><td>​ ​</td><td> </td><td>102,984 102,984</td><td>​ ​</td><td> </td><td>258,421 258,421</td><td>​ ​</td></tr><tr><td>CASH AND CASH EQUIVALENTS AT END OF PERIOD CASH AND CASH EQUIVALENTS AT END OF PERIOD</td><td>​ ​</td><td>$ $</td><td>227,362 227,362</td><td>​ ​</td><td>$ $</td><td>148,277 148,277</td><td>​ ​</td><td>$ $</td><td>102,984 102,984</td><td>​ ​</td></tr></table>
table
479
monetaryItemType
table: <entity> 479 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:GainLossOnSaleOfInvestments
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Year Ended DecemberΒ 31,</td></tr><tr><td>​ ​</td><td></td><td>2024</td><td>​ ​</td><td>2023</td><td>​ ​</td><td>​ ​</td><td>2022</td><td></td></tr><tr><td>CASH FLOWS FROM OPERATING ACTIVITIES: CASH FLOWS FROM OPERATING ACTIVITIES:</td><td>​ ​</td><td>​ ​</td><td> </td><td> </td><td>​ ​</td><td> </td><td> </td><td>​ ​</td><td> </td><td>​ ​</td></tr><tr><td>Net income Net income</td><td>​ ​</td><td>$ $</td><td>322,962 322,962</td><td>​ ​</td><td>$ $</td><td>34,342 34,342</td><td>​ ​</td><td>$ $</td><td>72,953 72,953</td><td>​ ​</td></tr><tr><td>Adjustments to reconcile net income to net cash provided by operating activities: Adjustments to reconcile net income to net cash provided by operating activities:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Depreciation and amortization Depreciation and amortization</td><td>​ ​</td><td> </td><td>383,880 383,880</td><td>​ ​</td><td> </td><td>383,115 383,115</td><td>​ ​</td><td> </td><td>394,552 394,552</td><td>​ ​</td></tr><tr><td>Stock based compensation expense Stock based compensation expense</td><td>​ ​</td><td> </td><td>19,864 19,864</td><td>​ ​</td><td> </td><td>17,125 17,125</td><td>​ ​</td><td> </td><td>9,159 9,159</td><td>​ ​</td></tr><tr><td>Decrease in credit loss reserves Decrease in credit loss reserves</td><td>​ ​</td><td>​ ​</td><td>( 3,628 ) ( 3,628 )</td><td>​ ​</td><td>​ ​</td><td>( 185 ) ( 185 )</td><td>​ ​</td><td>​ ​</td><td>( 4,591 ) ( 4,591 )</td><td>​ ​</td></tr><tr><td>Gain on disposal of fixed assets Gain on disposal of fixed assets</td><td>​ ​</td><td>​ ​</td><td>( 8,245 ) ( 8,245 )</td><td>​ ​</td><td>​ ​</td><td>( 14,295 ) ( 14,295 )</td><td>​ ​</td><td>​ ​</td><td>( 7,948 ) ( 7,948 )</td><td>​ ​</td></tr><tr><td>Loss (gain) on investments in other companies Loss (gain) on investments in other companies</td><td>​ ​</td><td>​ ​</td><td>6,815 6,815</td><td>​ ​</td><td>​ ​</td><td>479 479</td><td>​ ​</td><td>​ ​</td><td>( 11,380 ) ( 11,380 )</td><td>​ ​</td></tr><tr><td>Net increase in deferred income taxes Net increase in deferred income taxes</td><td>​ ​</td><td> </td><td>100,368 100,368</td><td>​ ​</td><td> </td><td>539 539</td><td>​ ​</td><td> </td><td>23,825 23,825</td><td>​ ​</td></tr><tr><td>Impairment (gain) on assets held for sale Impairment (gain) on assets held for sale</td><td>​ ​</td><td>​ ​</td><td>( 4,157 ) ( 4,157 )</td><td>​ ​</td><td>​ ​</td><td>2,318 2,318</td><td>​ ​</td><td>​ ​</td><td>51,384 51,384</td><td>​ ​</td></tr><tr><td>Changes in operating assets and liabilities: Changes in operating assets and liabilities:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Decrease (increase) in receivables Decrease (increase) in receivables</td><td>​ ​</td><td> </td><td>( 41,171 ) ( 41,171 )</td><td>​ ​</td><td> </td><td>19,818 19,818</td><td>​ ​</td><td> </td><td>( 32,959 ) ( 32,959 )</td><td>​ ​</td></tr><tr><td>Decrease (increase) in income tax receivable Decrease (increase) in income tax receivable</td><td>​ ​</td><td> </td><td>( 7,504 ) ( 7,504 )</td><td>​ ​</td><td> </td><td>997 997</td><td>​ ​</td><td> </td><td>7,815 7,815</td><td>​ ​</td></tr><tr><td>Increase in inventories Increase in inventories</td><td>​ ​</td><td> </td><td>( 11,888 ) ( 11,888 )</td><td>​ ​</td><td> </td><td>( 3,905 ) ( 3,905 )</td><td>​ ​</td><td> </td><td>( 16,628 ) ( 16,628 )</td><td>​ ​</td></tr><tr><td>Decrease (increase) in other current assets Decrease (increase) in other current assets</td><td>​ ​</td><td> </td><td>( 13,813 ) ( 13,813 )</td><td>​ ​</td><td> </td><td>1,593 1,593</td><td>​ ​</td><td> </td><td>( 2,871 ) ( 2,871 )</td><td>​ ​</td></tr><tr><td>Decrease (increase) in operating lease right-of-use assets Decrease (increase) in operating lease right-of-use assets</td><td>​ ​</td><td>​ ​</td><td>( 1,004 ) ( 1,004 )</td><td>​ ​</td><td>​ ​</td><td>25,954 25,954</td><td>​ ​</td><td>​ ​</td><td>86,588 86,588</td><td>​ ​</td></tr><tr><td>Increase (decrease) in operating lease liabilities Increase (decrease) in operating lease liabilities</td><td>​ ​</td><td>​ ​</td><td>1,004 1,004</td><td>​ ​</td><td>​ ​</td><td>( 54,984 ) ( 54,984 )</td><td>​ ​</td><td>​ ​</td><td>( 76,812 ) ( 76,812 )</td><td>​ ​</td></tr><tr><td>Increase (decrease) in deferred revenue Increase (decrease) in deferred revenue</td><td>​ ​</td><td>​ ​</td><td>( 40,012 ) ( 40,012 )</td><td>​ ​</td><td>​ ​</td><td>229,862 229,862</td><td>​ ​</td><td>​ ​</td><td>40,812 40,812</td><td>​ ​</td></tr><tr><td>Decrease (increase) in unbilled revenue Decrease (increase) in unbilled revenue</td><td>​ ​</td><td>​ ​</td><td>( 7,871 ) ( 7,871 )</td><td>​ ​</td><td>​ ​</td><td>12,601 12,601</td><td>​ ​</td><td>​ ​</td><td>( 11,491 ) ( 11,491 )</td><td>​ ​</td></tr><tr><td>Increase (decrease) in accounts payable and other current liabilities Increase (decrease) in accounts payable and other current liabilities</td><td>​ ​</td><td> </td><td>( 3,138 ) ( 3,138 )</td><td>​ ​</td><td> </td><td>80,960 80,960</td><td>​ ​</td><td> </td><td>( 42,032 ) ( 42,032 )</td><td>​ ​</td></tr><tr><td>NET CASH PROVIDED BY OPERATING ACTIVITIES NET CASH PROVIDED BY OPERATING ACTIVITIES</td><td>​ ​</td><td> </td><td>692,462 692,462</td><td>​ ​</td><td> </td><td>736,334 736,334</td><td>​ ​</td><td> </td><td>480,376 480,376</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>CASH FLOWS FROM INVESTING ACTIVITIES: CASH FLOWS FROM INVESTING ACTIVITIES:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Purchases of marketable securities Purchases of marketable securities</td><td>​ ​</td><td> </td><td>( 1,430,733 ) ( 1,430,733 )</td><td>​ ​</td><td> </td><td>( 1,339,465 ) ( 1,339,465 )</td><td>​ ​</td><td> </td><td>( 1,834,403 ) ( 1,834,403 )</td><td>​ ​</td></tr><tr><td>Sales of marketable securities Sales of marketable securities</td><td>​ ​</td><td> </td><td>1,543,256 1,543,256</td><td>​ ​</td><td> </td><td>1,600,877 1,600,877</td><td>​ ​</td><td> </td><td>1,488,359 1,488,359</td><td>​ ​</td></tr><tr><td>Acquisition of property and equipment: Acquisition of property and equipment:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Aircraft and rotable spare parts Aircraft and rotable spare parts</td><td>​ ​</td><td> </td><td>( 265,854 ) ( 265,854 )</td><td>​ ​</td><td> </td><td>( 238,068 ) ( 238,068 )</td><td>​ ​</td><td> </td><td>( 632,460 ) ( 632,460 )</td><td>​ ​</td></tr><tr><td>Buildings and ground equipment Buildings and ground equipment</td><td>​ ​</td><td> </td><td>( 44,895 ) ( 44,895 )</td><td>​ ​</td><td> </td><td>( 13,258 ) ( 13,258 )</td><td>​ ​</td><td> </td><td>( 13,031 ) ( 13,031 )</td><td>​ ​</td></tr><tr><td>Proceeds from the sale of property and equipment Proceeds from the sale of property and equipment</td><td>​ ​</td><td> </td><td>5,154 5,154</td><td>​ ​</td><td> </td><td>15,879 15,879</td><td>​ ​</td><td> </td><td>16,983 16,983</td><td>​ ​</td></tr><tr><td>Deposits on aircraft Deposits on aircraft</td><td>​ ​</td><td>​ ​</td><td>( 17,535 ) ( 17,535 )</td><td>​ ​</td><td>​ ​</td><td>( 65,000 ) ( 65,000 )</td><td>​ ​</td><td>​ ​</td><td>( 37,100 ) ( 37,100 )</td><td>​ ​</td></tr><tr><td>Aircraft deposits applied towards acquired aircraft Aircraft deposits applied towards acquired aircraft</td><td>​ ​</td><td>​ ​</td><td>β€” β€”</td><td>​ ​</td><td>​ ​</td><td>11,649 11,649</td><td>​ ​</td><td>​ ​</td><td>138,383 138,383</td><td>​ ​</td></tr><tr><td>Decrease (increase) in investments and financing activities with third parties and other assets Decrease (increase) in investments and financing activities with third parties and other assets</td><td>​ ​</td><td> </td><td>( 18,020 ) ( 18,020 )</td><td>​ ​</td><td> </td><td>4,158 4,158</td><td>​ ​</td><td> </td><td>( 31,625 ) ( 31,625 )</td><td>​ ​</td></tr><tr><td>NET CASH USED IN INVESTING ACTIVITIES NET CASH USED IN INVESTING ACTIVITIES</td><td>​ ​</td><td> </td><td>( 228,627 ) ( 228,627 )</td><td>​ ​</td><td> </td><td>( 23,228 ) ( 23,228 )</td><td>​ ​</td><td> </td><td>( 904,894 ) ( 904,894 )</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>CASH FLOWS FROM FINANCING ACTIVITIES: CASH FLOWS FROM FINANCING ACTIVITIES:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Proceeds from issuance of long-term debt Proceeds from issuance of long-term debt</td><td>​ ​</td><td> </td><td>116,165 116,165</td><td>​ ​</td><td> </td><td>69,689 69,689</td><td>​ ​</td><td> </td><td>684,502 684,502</td><td>​ ​</td></tr><tr><td>Principal payments on long-term debt Principal payments on long-term debt</td><td>​ ​</td><td> </td><td>( 452,855 ) ( 452,855 )</td><td>​ ​</td><td> </td><td>( 447,604 ) ( 447,604 )</td><td>​ ​</td><td> </td><td>( 415,050 ) ( 415,050 )</td><td>​ ​</td></tr><tr><td>Payment of debt issuance cost Payment of debt issuance cost</td><td>​ ​</td><td>​ ​</td><td>( 670 ) ( 670 )</td><td>​ ​</td><td>​ ​</td><td>( 175 ) ( 175 )</td><td>​ ​</td><td>​ ​</td><td>( 2,178 ) ( 2,178 )</td><td>​ ​</td></tr><tr><td>Net proceeds from issuance of common stock Net proceeds from issuance of common stock</td><td>​ ​</td><td> </td><td>2,864 2,864</td><td>​ ​</td><td> </td><td>2,811 2,811</td><td>​ ​</td><td> </td><td>2,957 2,957</td><td>​ ​</td></tr><tr><td>Employee income tax paid on vested equity awards Employee income tax paid on vested equity awards</td><td>​ ​</td><td>​ ​</td><td>( 6,930 ) ( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>( 585 ) ( 585 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 ) ( 1,150 )</td><td>​ ​</td></tr><tr><td>Purchase of treasury stock and related excise tax Purchase of treasury stock and related excise tax</td><td>​ ​</td><td> </td><td>( 43,324 ) ( 43,324 )</td><td>​ ​</td><td> </td><td>( 291,949 ) ( 291,949 )</td><td>​ ​</td><td> </td><td>β€” β€”</td><td>​ ​</td></tr><tr><td>NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES</td><td>​ ​</td><td> </td><td>( 384,750 ) ( 384,750 )</td><td>​ ​</td><td> </td><td>( 667,813 ) ( 667,813 )</td><td>​ ​</td><td> </td><td>269,081 269,081</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Increase (decrease) in cash and cash equivalents Increase (decrease) in cash and cash equivalents</td><td>​ ​</td><td> </td><td>79,085 79,085</td><td>​ ​</td><td> </td><td>45,293 45,293</td><td>​ ​</td><td> </td><td>( 155,437 ) ( 155,437 )</td><td>​ ​</td></tr><tr><td>Cash and cash equivalents at beginning of period Cash and cash equivalents at beginning of period</td><td>​ ​</td><td> </td><td>148,277 148,277</td><td>​ ​</td><td> </td><td>102,984 102,984</td><td>​ ​</td><td> </td><td>258,421 258,421</td><td>​ ​</td></tr><tr><td>CASH AND CASH EQUIVALENTS AT END OF PERIOD CASH AND CASH EQUIVALENTS AT END OF PERIOD</td><td>​ ​</td><td>$ $</td><td>227,362 227,362</td><td>​ ​</td><td>$ $</td><td>148,277 148,277</td><td>​ ​</td><td>$ $</td><td>102,984 102,984</td><td>​ ​</td></tr></table>
table
11380
monetaryItemType
table: <entity> 11380 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:GainLossOnSaleOfInvestments
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Year Ended DecemberΒ 31,</td></tr><tr><td>​ ​</td><td></td><td>2024</td><td>​ ​</td><td>2023</td><td>​ ​</td><td>​ ​</td><td>2022</td><td></td></tr><tr><td>CASH FLOWS FROM OPERATING ACTIVITIES: CASH FLOWS FROM OPERATING ACTIVITIES:</td><td>​ ​</td><td>​ ​</td><td> </td><td> </td><td>​ ​</td><td> </td><td> </td><td>​ ​</td><td> </td><td>​ ​</td></tr><tr><td>Net income Net income</td><td>​ ​</td><td>$ $</td><td>322,962 322,962</td><td>​ ​</td><td>$ $</td><td>34,342 34,342</td><td>​ ​</td><td>$ $</td><td>72,953 72,953</td><td>​ ​</td></tr><tr><td>Adjustments to reconcile net income to net cash provided by operating activities: Adjustments to reconcile net income to net cash provided by operating activities:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Depreciation and amortization Depreciation and amortization</td><td>​ ​</td><td> </td><td>383,880 383,880</td><td>​ ​</td><td> </td><td>383,115 383,115</td><td>​ ​</td><td> </td><td>394,552 394,552</td><td>​ ​</td></tr><tr><td>Stock based compensation expense Stock based compensation expense</td><td>​ ​</td><td> </td><td>19,864 19,864</td><td>​ ​</td><td> </td><td>17,125 17,125</td><td>​ ​</td><td> </td><td>9,159 9,159</td><td>​ ​</td></tr><tr><td>Decrease in credit loss reserves Decrease in credit loss reserves</td><td>​ ​</td><td>​ ​</td><td>( 3,628 ) ( 3,628 )</td><td>​ ​</td><td>​ ​</td><td>( 185 ) ( 185 )</td><td>​ ​</td><td>​ ​</td><td>( 4,591 ) ( 4,591 )</td><td>​ ​</td></tr><tr><td>Gain on disposal of fixed assets Gain on disposal of fixed assets</td><td>​ ​</td><td>​ ​</td><td>( 8,245 ) ( 8,245 )</td><td>​ ​</td><td>​ ​</td><td>( 14,295 ) ( 14,295 )</td><td>​ ​</td><td>​ ​</td><td>( 7,948 ) ( 7,948 )</td><td>​ ​</td></tr><tr><td>Loss (gain) on investments in other companies Loss (gain) on investments in other companies</td><td>​ ​</td><td>​ ​</td><td>6,815 6,815</td><td>​ ​</td><td>​ ​</td><td>479 479</td><td>​ ​</td><td>​ ​</td><td>( 11,380 ) ( 11,380 )</td><td>​ ​</td></tr><tr><td>Net increase in deferred income taxes Net increase in deferred income taxes</td><td>​ ​</td><td> </td><td>100,368 100,368</td><td>​ ​</td><td> </td><td>539 539</td><td>​ ​</td><td> </td><td>23,825 23,825</td><td>​ ​</td></tr><tr><td>Impairment (gain) on assets held for sale Impairment (gain) on assets held for sale</td><td>​ ​</td><td>​ ​</td><td>( 4,157 ) ( 4,157 )</td><td>​ ​</td><td>​ ​</td><td>2,318 2,318</td><td>​ ​</td><td>​ ​</td><td>51,384 51,384</td><td>​ ​</td></tr><tr><td>Changes in operating assets and liabilities: Changes in operating assets and liabilities:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Decrease (increase) in receivables Decrease (increase) in receivables</td><td>​ ​</td><td> </td><td>( 41,171 ) ( 41,171 )</td><td>​ ​</td><td> </td><td>19,818 19,818</td><td>​ ​</td><td> </td><td>( 32,959 ) ( 32,959 )</td><td>​ ​</td></tr><tr><td>Decrease (increase) in income tax receivable Decrease (increase) in income tax receivable</td><td>​ ​</td><td> </td><td>( 7,504 ) ( 7,504 )</td><td>​ ​</td><td> </td><td>997 997</td><td>​ ​</td><td> </td><td>7,815 7,815</td><td>​ ​</td></tr><tr><td>Increase in inventories Increase in inventories</td><td>​ ​</td><td> </td><td>( 11,888 ) ( 11,888 )</td><td>​ ​</td><td> </td><td>( 3,905 ) ( 3,905 )</td><td>​ ​</td><td> </td><td>( 16,628 ) ( 16,628 )</td><td>​ ​</td></tr><tr><td>Decrease (increase) in other current assets Decrease (increase) in other current assets</td><td>​ ​</td><td> </td><td>( 13,813 ) ( 13,813 )</td><td>​ ​</td><td> </td><td>1,593 1,593</td><td>​ ​</td><td> </td><td>( 2,871 ) ( 2,871 )</td><td>​ ​</td></tr><tr><td>Decrease (increase) in operating lease right-of-use assets Decrease (increase) in operating lease right-of-use assets</td><td>​ ​</td><td>​ ​</td><td>( 1,004 ) ( 1,004 )</td><td>​ ​</td><td>​ ​</td><td>25,954 25,954</td><td>​ ​</td><td>​ ​</td><td>86,588 86,588</td><td>​ ​</td></tr><tr><td>Increase (decrease) in operating lease liabilities Increase (decrease) in operating lease liabilities</td><td>​ ​</td><td>​ ​</td><td>1,004 1,004</td><td>​ ​</td><td>​ ​</td><td>( 54,984 ) ( 54,984 )</td><td>​ ​</td><td>​ ​</td><td>( 76,812 ) ( 76,812 )</td><td>​ ​</td></tr><tr><td>Increase (decrease) in deferred revenue Increase (decrease) in deferred revenue</td><td>​ ​</td><td>​ ​</td><td>( 40,012 ) ( 40,012 )</td><td>​ ​</td><td>​ ​</td><td>229,862 229,862</td><td>​ ​</td><td>​ ​</td><td>40,812 40,812</td><td>​ ​</td></tr><tr><td>Decrease (increase) in unbilled revenue Decrease (increase) in unbilled revenue</td><td>​ ​</td><td>​ ​</td><td>( 7,871 ) ( 7,871 )</td><td>​ ​</td><td>​ ​</td><td>12,601 12,601</td><td>​ ​</td><td>​ ​</td><td>( 11,491 ) ( 11,491 )</td><td>​ ​</td></tr><tr><td>Increase (decrease) in accounts payable and other current liabilities Increase (decrease) in accounts payable and other current liabilities</td><td>​ ​</td><td> </td><td>( 3,138 ) ( 3,138 )</td><td>​ ​</td><td> </td><td>80,960 80,960</td><td>​ ​</td><td> </td><td>( 42,032 ) ( 42,032 )</td><td>​ ​</td></tr><tr><td>NET CASH PROVIDED BY OPERATING ACTIVITIES NET CASH PROVIDED BY OPERATING ACTIVITIES</td><td>​ ​</td><td> </td><td>692,462 692,462</td><td>​ ​</td><td> </td><td>736,334 736,334</td><td>​ ​</td><td> </td><td>480,376 480,376</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>CASH FLOWS FROM INVESTING ACTIVITIES: CASH FLOWS FROM INVESTING ACTIVITIES:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Purchases of marketable securities Purchases of marketable securities</td><td>​ ​</td><td> </td><td>( 1,430,733 ) ( 1,430,733 )</td><td>​ ​</td><td> </td><td>( 1,339,465 ) ( 1,339,465 )</td><td>​ ​</td><td> </td><td>( 1,834,403 ) ( 1,834,403 )</td><td>​ ​</td></tr><tr><td>Sales of marketable securities Sales of marketable securities</td><td>​ ​</td><td> </td><td>1,543,256 1,543,256</td><td>​ ​</td><td> </td><td>1,600,877 1,600,877</td><td>​ ​</td><td> </td><td>1,488,359 1,488,359</td><td>​ ​</td></tr><tr><td>Acquisition of property and equipment: Acquisition of property and equipment:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Aircraft and rotable spare parts Aircraft and rotable spare parts</td><td>​ ​</td><td> </td><td>( 265,854 ) ( 265,854 )</td><td>​ ​</td><td> </td><td>( 238,068 ) ( 238,068 )</td><td>​ ​</td><td> </td><td>( 632,460 ) ( 632,460 )</td><td>​ ​</td></tr><tr><td>Buildings and ground equipment Buildings and ground equipment</td><td>​ ​</td><td> </td><td>( 44,895 ) ( 44,895 )</td><td>​ ​</td><td> </td><td>( 13,258 ) ( 13,258 )</td><td>​ ​</td><td> </td><td>( 13,031 ) ( 13,031 )</td><td>​ ​</td></tr><tr><td>Proceeds from the sale of property and equipment Proceeds from the sale of property and equipment</td><td>​ ​</td><td> </td><td>5,154 5,154</td><td>​ ​</td><td> </td><td>15,879 15,879</td><td>​ ​</td><td> </td><td>16,983 16,983</td><td>​ ​</td></tr><tr><td>Deposits on aircraft Deposits on aircraft</td><td>​ ​</td><td>​ ​</td><td>( 17,535 ) ( 17,535 )</td><td>​ ​</td><td>​ ​</td><td>( 65,000 ) ( 65,000 )</td><td>​ ​</td><td>​ ​</td><td>( 37,100 ) ( 37,100 )</td><td>​ ​</td></tr><tr><td>Aircraft deposits applied towards acquired aircraft Aircraft deposits applied towards acquired aircraft</td><td>​ ​</td><td>​ ​</td><td>β€” β€”</td><td>​ ​</td><td>​ ​</td><td>11,649 11,649</td><td>​ ​</td><td>​ ​</td><td>138,383 138,383</td><td>​ ​</td></tr><tr><td>Decrease (increase) in investments and financing activities with third parties and other assets Decrease (increase) in investments and financing activities with third parties and other assets</td><td>​ ​</td><td> </td><td>( 18,020 ) ( 18,020 )</td><td>​ ​</td><td> </td><td>4,158 4,158</td><td>​ ​</td><td> </td><td>( 31,625 ) ( 31,625 )</td><td>​ ​</td></tr><tr><td>NET CASH USED IN INVESTING ACTIVITIES NET CASH USED IN INVESTING ACTIVITIES</td><td>​ ​</td><td> </td><td>( 228,627 ) ( 228,627 )</td><td>​ ​</td><td> </td><td>( 23,228 ) ( 23,228 )</td><td>​ ​</td><td> </td><td>( 904,894 ) ( 904,894 )</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>CASH FLOWS FROM FINANCING ACTIVITIES: CASH FLOWS FROM FINANCING ACTIVITIES:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Proceeds from issuance of long-term debt Proceeds from issuance of long-term debt</td><td>​ ​</td><td> </td><td>116,165 116,165</td><td>​ ​</td><td> </td><td>69,689 69,689</td><td>​ ​</td><td> </td><td>684,502 684,502</td><td>​ ​</td></tr><tr><td>Principal payments on long-term debt Principal payments on long-term debt</td><td>​ ​</td><td> </td><td>( 452,855 ) ( 452,855 )</td><td>​ ​</td><td> </td><td>( 447,604 ) ( 447,604 )</td><td>​ ​</td><td> </td><td>( 415,050 ) ( 415,050 )</td><td>​ ​</td></tr><tr><td>Payment of debt issuance cost Payment of debt issuance cost</td><td>​ ​</td><td>​ ​</td><td>( 670 ) ( 670 )</td><td>​ ​</td><td>​ ​</td><td>( 175 ) ( 175 )</td><td>​ ​</td><td>​ ​</td><td>( 2,178 ) ( 2,178 )</td><td>​ ​</td></tr><tr><td>Net proceeds from issuance of common stock Net proceeds from issuance of common stock</td><td>​ ​</td><td> </td><td>2,864 2,864</td><td>​ ​</td><td> </td><td>2,811 2,811</td><td>​ ​</td><td> </td><td>2,957 2,957</td><td>​ ​</td></tr><tr><td>Employee income tax paid on vested equity awards Employee income tax paid on vested equity awards</td><td>​ ​</td><td>​ ​</td><td>( 6,930 ) ( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>( 585 ) ( 585 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 ) ( 1,150 )</td><td>​ ​</td></tr><tr><td>Purchase of treasury stock and related excise tax Purchase of treasury stock and related excise tax</td><td>​ ​</td><td> </td><td>( 43,324 ) ( 43,324 )</td><td>​ ​</td><td> </td><td>( 291,949 ) ( 291,949 )</td><td>​ ​</td><td> </td><td>β€” β€”</td><td>​ ​</td></tr><tr><td>NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES</td><td>​ ​</td><td> </td><td>( 384,750 ) ( 384,750 )</td><td>​ ​</td><td> </td><td>( 667,813 ) ( 667,813 )</td><td>​ ​</td><td> </td><td>269,081 269,081</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Increase (decrease) in cash and cash equivalents Increase (decrease) in cash and cash equivalents</td><td>​ ​</td><td> </td><td>79,085 79,085</td><td>​ ​</td><td> </td><td>45,293 45,293</td><td>​ ​</td><td> </td><td>( 155,437 ) ( 155,437 )</td><td>​ ​</td></tr><tr><td>Cash and cash equivalents at beginning of period Cash and cash equivalents at beginning of period</td><td>​ ​</td><td> </td><td>148,277 148,277</td><td>​ ​</td><td> </td><td>102,984 102,984</td><td>​ ​</td><td> </td><td>258,421 258,421</td><td>​ ​</td></tr><tr><td>CASH AND CASH EQUIVALENTS AT END OF PERIOD CASH AND CASH EQUIVALENTS AT END OF PERIOD</td><td>​ ​</td><td>$ $</td><td>227,362 227,362</td><td>​ ​</td><td>$ $</td><td>148,277 148,277</td><td>​ ​</td><td>$ $</td><td>102,984 102,984</td><td>​ ​</td></tr></table>
table
100368
monetaryItemType
table: <entity> 100368 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:DeferredIncomeTaxExpenseBenefit
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Year Ended DecemberΒ 31,</td></tr><tr><td>​ ​</td><td></td><td>2024</td><td>​ ​</td><td>2023</td><td>​ ​</td><td>​ ​</td><td>2022</td><td></td></tr><tr><td>CASH FLOWS FROM OPERATING ACTIVITIES: CASH FLOWS FROM OPERATING ACTIVITIES:</td><td>​ ​</td><td>​ ​</td><td> </td><td> </td><td>​ ​</td><td> </td><td> </td><td>​ ​</td><td> </td><td>​ ​</td></tr><tr><td>Net income Net income</td><td>​ ​</td><td>$ $</td><td>322,962 322,962</td><td>​ ​</td><td>$ $</td><td>34,342 34,342</td><td>​ ​</td><td>$ $</td><td>72,953 72,953</td><td>​ ​</td></tr><tr><td>Adjustments to reconcile net income to net cash provided by operating activities: Adjustments to reconcile net income to net cash provided by operating activities:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Depreciation and amortization Depreciation and amortization</td><td>​ ​</td><td> </td><td>383,880 383,880</td><td>​ ​</td><td> </td><td>383,115 383,115</td><td>​ ​</td><td> </td><td>394,552 394,552</td><td>​ ​</td></tr><tr><td>Stock based compensation expense Stock based compensation expense</td><td>​ ​</td><td> </td><td>19,864 19,864</td><td>​ ​</td><td> </td><td>17,125 17,125</td><td>​ ​</td><td> </td><td>9,159 9,159</td><td>​ ​</td></tr><tr><td>Decrease in credit loss reserves Decrease in credit loss reserves</td><td>​ ​</td><td>​ ​</td><td>( 3,628 ) ( 3,628 )</td><td>​ ​</td><td>​ ​</td><td>( 185 ) ( 185 )</td><td>​ ​</td><td>​ ​</td><td>( 4,591 ) ( 4,591 )</td><td>​ ​</td></tr><tr><td>Gain on disposal of fixed assets Gain on disposal of fixed assets</td><td>​ ​</td><td>​ ​</td><td>( 8,245 ) ( 8,245 )</td><td>​ ​</td><td>​ ​</td><td>( 14,295 ) ( 14,295 )</td><td>​ ​</td><td>​ ​</td><td>( 7,948 ) ( 7,948 )</td><td>​ ​</td></tr><tr><td>Loss (gain) on investments in other companies Loss (gain) on investments in other companies</td><td>​ ​</td><td>​ ​</td><td>6,815 6,815</td><td>​ ​</td><td>​ ​</td><td>479 479</td><td>​ ​</td><td>​ ​</td><td>( 11,380 ) ( 11,380 )</td><td>​ ​</td></tr><tr><td>Net increase in deferred income taxes Net increase in deferred income taxes</td><td>​ ​</td><td> </td><td>100,368 100,368</td><td>​ ​</td><td> </td><td>539 539</td><td>​ ​</td><td> </td><td>23,825 23,825</td><td>​ ​</td></tr><tr><td>Impairment (gain) on assets held for sale Impairment (gain) on assets held for sale</td><td>​ ​</td><td>​ ​</td><td>( 4,157 ) ( 4,157 )</td><td>​ ​</td><td>​ ​</td><td>2,318 2,318</td><td>​ ​</td><td>​ ​</td><td>51,384 51,384</td><td>​ ​</td></tr><tr><td>Changes in operating assets and liabilities: Changes in operating assets and liabilities:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Decrease (increase) in receivables Decrease (increase) in receivables</td><td>​ ​</td><td> </td><td>( 41,171 ) ( 41,171 )</td><td>​ ​</td><td> </td><td>19,818 19,818</td><td>​ ​</td><td> </td><td>( 32,959 ) ( 32,959 )</td><td>​ ​</td></tr><tr><td>Decrease (increase) in income tax receivable Decrease (increase) in income tax receivable</td><td>​ ​</td><td> </td><td>( 7,504 ) ( 7,504 )</td><td>​ ​</td><td> </td><td>997 997</td><td>​ ​</td><td> </td><td>7,815 7,815</td><td>​ ​</td></tr><tr><td>Increase in inventories Increase in inventories</td><td>​ ​</td><td> </td><td>( 11,888 ) ( 11,888 )</td><td>​ ​</td><td> </td><td>( 3,905 ) ( 3,905 )</td><td>​ ​</td><td> </td><td>( 16,628 ) ( 16,628 )</td><td>​ ​</td></tr><tr><td>Decrease (increase) in other current assets Decrease (increase) in other current assets</td><td>​ ​</td><td> </td><td>( 13,813 ) ( 13,813 )</td><td>​ ​</td><td> </td><td>1,593 1,593</td><td>​ ​</td><td> </td><td>( 2,871 ) ( 2,871 )</td><td>​ ​</td></tr><tr><td>Decrease (increase) in operating lease right-of-use assets Decrease (increase) in operating lease right-of-use assets</td><td>​ ​</td><td>​ ​</td><td>( 1,004 ) ( 1,004 )</td><td>​ ​</td><td>​ ​</td><td>25,954 25,954</td><td>​ ​</td><td>​ ​</td><td>86,588 86,588</td><td>​ ​</td></tr><tr><td>Increase (decrease) in operating lease liabilities Increase (decrease) in operating lease liabilities</td><td>​ ​</td><td>​ ​</td><td>1,004 1,004</td><td>​ ​</td><td>​ ​</td><td>( 54,984 ) ( 54,984 )</td><td>​ ​</td><td>​ ​</td><td>( 76,812 ) ( 76,812 )</td><td>​ ​</td></tr><tr><td>Increase (decrease) in deferred revenue Increase (decrease) in deferred revenue</td><td>​ ​</td><td>​ ​</td><td>( 40,012 ) ( 40,012 )</td><td>​ ​</td><td>​ ​</td><td>229,862 229,862</td><td>​ ​</td><td>​ ​</td><td>40,812 40,812</td><td>​ ​</td></tr><tr><td>Decrease (increase) in unbilled revenue Decrease (increase) in unbilled revenue</td><td>​ ​</td><td>​ ​</td><td>( 7,871 ) ( 7,871 )</td><td>​ ​</td><td>​ ​</td><td>12,601 12,601</td><td>​ ​</td><td>​ ​</td><td>( 11,491 ) ( 11,491 )</td><td>​ ​</td></tr><tr><td>Increase (decrease) in accounts payable and other current liabilities Increase (decrease) in accounts payable and other current liabilities</td><td>​ ​</td><td> </td><td>( 3,138 ) ( 3,138 )</td><td>​ ​</td><td> </td><td>80,960 80,960</td><td>​ ​</td><td> </td><td>( 42,032 ) ( 42,032 )</td><td>​ ​</td></tr><tr><td>NET CASH PROVIDED BY OPERATING ACTIVITIES NET CASH PROVIDED BY OPERATING ACTIVITIES</td><td>​ ​</td><td> </td><td>692,462 692,462</td><td>​ ​</td><td> </td><td>736,334 736,334</td><td>​ ​</td><td> </td><td>480,376 480,376</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>CASH FLOWS FROM INVESTING ACTIVITIES: CASH FLOWS FROM INVESTING ACTIVITIES:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Purchases of marketable securities Purchases of marketable securities</td><td>​ ​</td><td> </td><td>( 1,430,733 ) ( 1,430,733 )</td><td>​ ​</td><td> </td><td>( 1,339,465 ) ( 1,339,465 )</td><td>​ ​</td><td> </td><td>( 1,834,403 ) ( 1,834,403 )</td><td>​ ​</td></tr><tr><td>Sales of marketable securities Sales of marketable securities</td><td>​ ​</td><td> </td><td>1,543,256 1,543,256</td><td>​ ​</td><td> </td><td>1,600,877 1,600,877</td><td>​ ​</td><td> </td><td>1,488,359 1,488,359</td><td>​ ​</td></tr><tr><td>Acquisition of property and equipment: Acquisition of property and equipment:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Aircraft and rotable spare parts Aircraft and rotable spare parts</td><td>​ ​</td><td> </td><td>( 265,854 ) ( 265,854 )</td><td>​ ​</td><td> </td><td>( 238,068 ) ( 238,068 )</td><td>​ ​</td><td> </td><td>( 632,460 ) ( 632,460 )</td><td>​ ​</td></tr><tr><td>Buildings and ground equipment Buildings and ground equipment</td><td>​ ​</td><td> </td><td>( 44,895 ) ( 44,895 )</td><td>​ ​</td><td> </td><td>( 13,258 ) ( 13,258 )</td><td>​ ​</td><td> </td><td>( 13,031 ) ( 13,031 )</td><td>​ ​</td></tr><tr><td>Proceeds from the sale of property and equipment Proceeds from the sale of property and equipment</td><td>​ ​</td><td> </td><td>5,154 5,154</td><td>​ ​</td><td> </td><td>15,879 15,879</td><td>​ ​</td><td> </td><td>16,983 16,983</td><td>​ ​</td></tr><tr><td>Deposits on aircraft Deposits on aircraft</td><td>​ ​</td><td>​ ​</td><td>( 17,535 ) ( 17,535 )</td><td>​ ​</td><td>​ ​</td><td>( 65,000 ) ( 65,000 )</td><td>​ ​</td><td>​ ​</td><td>( 37,100 ) ( 37,100 )</td><td>​ ​</td></tr><tr><td>Aircraft deposits applied towards acquired aircraft Aircraft deposits applied towards acquired aircraft</td><td>​ ​</td><td>​ ​</td><td>β€” β€”</td><td>​ ​</td><td>​ ​</td><td>11,649 11,649</td><td>​ ​</td><td>​ ​</td><td>138,383 138,383</td><td>​ ​</td></tr><tr><td>Decrease (increase) in investments and financing activities with third parties and other assets Decrease (increase) in investments and financing activities with third parties and other assets</td><td>​ ​</td><td> </td><td>( 18,020 ) ( 18,020 )</td><td>​ ​</td><td> </td><td>4,158 4,158</td><td>​ ​</td><td> </td><td>( 31,625 ) ( 31,625 )</td><td>​ ​</td></tr><tr><td>NET CASH USED IN INVESTING ACTIVITIES NET CASH USED IN INVESTING ACTIVITIES</td><td>​ ​</td><td> </td><td>( 228,627 ) ( 228,627 )</td><td>​ ​</td><td> </td><td>( 23,228 ) ( 23,228 )</td><td>​ ​</td><td> </td><td>( 904,894 ) ( 904,894 )</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>CASH FLOWS FROM FINANCING ACTIVITIES: CASH FLOWS FROM FINANCING ACTIVITIES:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Proceeds from issuance of long-term debt Proceeds from issuance of long-term debt</td><td>​ ​</td><td> </td><td>116,165 116,165</td><td>​ ​</td><td> </td><td>69,689 69,689</td><td>​ ​</td><td> </td><td>684,502 684,502</td><td>​ ​</td></tr><tr><td>Principal payments on long-term debt Principal payments on long-term debt</td><td>​ ​</td><td> </td><td>( 452,855 ) ( 452,855 )</td><td>​ ​</td><td> </td><td>( 447,604 ) ( 447,604 )</td><td>​ ​</td><td> </td><td>( 415,050 ) ( 415,050 )</td><td>​ ​</td></tr><tr><td>Payment of debt issuance cost Payment of debt issuance cost</td><td>​ ​</td><td>​ ​</td><td>( 670 ) ( 670 )</td><td>​ ​</td><td>​ ​</td><td>( 175 ) ( 175 )</td><td>​ ​</td><td>​ ​</td><td>( 2,178 ) ( 2,178 )</td><td>​ ​</td></tr><tr><td>Net proceeds from issuance of common stock Net proceeds from issuance of common stock</td><td>​ ​</td><td> </td><td>2,864 2,864</td><td>​ ​</td><td> </td><td>2,811 2,811</td><td>​ ​</td><td> </td><td>2,957 2,957</td><td>​ ​</td></tr><tr><td>Employee income tax paid on vested equity awards Employee income tax paid on vested equity awards</td><td>​ ​</td><td>​ ​</td><td>( 6,930 ) ( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>( 585 ) ( 585 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 ) ( 1,150 )</td><td>​ ​</td></tr><tr><td>Purchase of treasury stock and related excise tax Purchase of treasury stock and related excise tax</td><td>​ ​</td><td> </td><td>( 43,324 ) ( 43,324 )</td><td>​ ​</td><td> </td><td>( 291,949 ) ( 291,949 )</td><td>​ ​</td><td> </td><td>β€” β€”</td><td>​ ​</td></tr><tr><td>NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES</td><td>​ ​</td><td> </td><td>( 384,750 ) ( 384,750 )</td><td>​ ​</td><td> </td><td>( 667,813 ) ( 667,813 )</td><td>​ ​</td><td> </td><td>269,081 269,081</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Increase (decrease) in cash and cash equivalents Increase (decrease) in cash and cash equivalents</td><td>​ ​</td><td> </td><td>79,085 79,085</td><td>​ ​</td><td> </td><td>45,293 45,293</td><td>​ ​</td><td> </td><td>( 155,437 ) ( 155,437 )</td><td>​ ​</td></tr><tr><td>Cash and cash equivalents at beginning of period Cash and cash equivalents at beginning of period</td><td>​ ​</td><td> </td><td>148,277 148,277</td><td>​ ​</td><td> </td><td>102,984 102,984</td><td>​ ​</td><td> </td><td>258,421 258,421</td><td>​ ​</td></tr><tr><td>CASH AND CASH EQUIVALENTS AT END OF PERIOD CASH AND CASH EQUIVALENTS AT END OF PERIOD</td><td>​ ​</td><td>$ $</td><td>227,362 227,362</td><td>​ ​</td><td>$ $</td><td>148,277 148,277</td><td>​ ​</td><td>$ $</td><td>102,984 102,984</td><td>​ ​</td></tr></table>
table
539
monetaryItemType
table: <entity> 539 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:DeferredIncomeTaxExpenseBenefit
<table><tr><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td><td>​ ​ ​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>Year Ended DecemberΒ 31,</td></tr><tr><td>​ ​</td><td></td><td>2024</td><td>​ ​</td><td>2023</td><td>​ ​</td><td>​ ​</td><td>2022</td><td></td></tr><tr><td>CASH FLOWS FROM OPERATING ACTIVITIES: CASH FLOWS FROM OPERATING ACTIVITIES:</td><td>​ ​</td><td>​ ​</td><td> </td><td> </td><td>​ ​</td><td> </td><td> </td><td>​ ​</td><td> </td><td>​ ​</td></tr><tr><td>Net income Net income</td><td>​ ​</td><td>$ $</td><td>322,962 322,962</td><td>​ ​</td><td>$ $</td><td>34,342 34,342</td><td>​ ​</td><td>$ $</td><td>72,953 72,953</td><td>​ ​</td></tr><tr><td>Adjustments to reconcile net income to net cash provided by operating activities: Adjustments to reconcile net income to net cash provided by operating activities:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Depreciation and amortization Depreciation and amortization</td><td>​ ​</td><td> </td><td>383,880 383,880</td><td>​ ​</td><td> </td><td>383,115 383,115</td><td>​ ​</td><td> </td><td>394,552 394,552</td><td>​ ​</td></tr><tr><td>Stock based compensation expense Stock based compensation expense</td><td>​ ​</td><td> </td><td>19,864 19,864</td><td>​ ​</td><td> </td><td>17,125 17,125</td><td>​ ​</td><td> </td><td>9,159 9,159</td><td>​ ​</td></tr><tr><td>Decrease in credit loss reserves Decrease in credit loss reserves</td><td>​ ​</td><td>​ ​</td><td>( 3,628 ) ( 3,628 )</td><td>​ ​</td><td>​ ​</td><td>( 185 ) ( 185 )</td><td>​ ​</td><td>​ ​</td><td>( 4,591 ) ( 4,591 )</td><td>​ ​</td></tr><tr><td>Gain on disposal of fixed assets Gain on disposal of fixed assets</td><td>​ ​</td><td>​ ​</td><td>( 8,245 ) ( 8,245 )</td><td>​ ​</td><td>​ ​</td><td>( 14,295 ) ( 14,295 )</td><td>​ ​</td><td>​ ​</td><td>( 7,948 ) ( 7,948 )</td><td>​ ​</td></tr><tr><td>Loss (gain) on investments in other companies Loss (gain) on investments in other companies</td><td>​ ​</td><td>​ ​</td><td>6,815 6,815</td><td>​ ​</td><td>​ ​</td><td>479 479</td><td>​ ​</td><td>​ ​</td><td>( 11,380 ) ( 11,380 )</td><td>​ ​</td></tr><tr><td>Net increase in deferred income taxes Net increase in deferred income taxes</td><td>​ ​</td><td> </td><td>100,368 100,368</td><td>​ ​</td><td> </td><td>539 539</td><td>​ ​</td><td> </td><td>23,825 23,825</td><td>​ ​</td></tr><tr><td>Impairment (gain) on assets held for sale Impairment (gain) on assets held for sale</td><td>​ ​</td><td>​ ​</td><td>( 4,157 ) ( 4,157 )</td><td>​ ​</td><td>​ ​</td><td>2,318 2,318</td><td>​ ​</td><td>​ ​</td><td>51,384 51,384</td><td>​ ​</td></tr><tr><td>Changes in operating assets and liabilities: Changes in operating assets and liabilities:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Decrease (increase) in receivables Decrease (increase) in receivables</td><td>​ ​</td><td> </td><td>( 41,171 ) ( 41,171 )</td><td>​ ​</td><td> </td><td>19,818 19,818</td><td>​ ​</td><td> </td><td>( 32,959 ) ( 32,959 )</td><td>​ ​</td></tr><tr><td>Decrease (increase) in income tax receivable Decrease (increase) in income tax receivable</td><td>​ ​</td><td> </td><td>( 7,504 ) ( 7,504 )</td><td>​ ​</td><td> </td><td>997 997</td><td>​ ​</td><td> </td><td>7,815 7,815</td><td>​ ​</td></tr><tr><td>Increase in inventories Increase in inventories</td><td>​ ​</td><td> </td><td>( 11,888 ) ( 11,888 )</td><td>​ ​</td><td> </td><td>( 3,905 ) ( 3,905 )</td><td>​ ​</td><td> </td><td>( 16,628 ) ( 16,628 )</td><td>​ ​</td></tr><tr><td>Decrease (increase) in other current assets Decrease (increase) in other current assets</td><td>​ ​</td><td> </td><td>( 13,813 ) ( 13,813 )</td><td>​ ​</td><td> </td><td>1,593 1,593</td><td>​ ​</td><td> </td><td>( 2,871 ) ( 2,871 )</td><td>​ ​</td></tr><tr><td>Decrease (increase) in operating lease right-of-use assets Decrease (increase) in operating lease right-of-use assets</td><td>​ ​</td><td>​ ​</td><td>( 1,004 ) ( 1,004 )</td><td>​ ​</td><td>​ ​</td><td>25,954 25,954</td><td>​ ​</td><td>​ ​</td><td>86,588 86,588</td><td>​ ​</td></tr><tr><td>Increase (decrease) in operating lease liabilities Increase (decrease) in operating lease liabilities</td><td>​ ​</td><td>​ ​</td><td>1,004 1,004</td><td>​ ​</td><td>​ ​</td><td>( 54,984 ) ( 54,984 )</td><td>​ ​</td><td>​ ​</td><td>( 76,812 ) ( 76,812 )</td><td>​ ​</td></tr><tr><td>Increase (decrease) in deferred revenue Increase (decrease) in deferred revenue</td><td>​ ​</td><td>​ ​</td><td>( 40,012 ) ( 40,012 )</td><td>​ ​</td><td>​ ​</td><td>229,862 229,862</td><td>​ ​</td><td>​ ​</td><td>40,812 40,812</td><td>​ ​</td></tr><tr><td>Decrease (increase) in unbilled revenue Decrease (increase) in unbilled revenue</td><td>​ ​</td><td>​ ​</td><td>( 7,871 ) ( 7,871 )</td><td>​ ​</td><td>​ ​</td><td>12,601 12,601</td><td>​ ​</td><td>​ ​</td><td>( 11,491 ) ( 11,491 )</td><td>​ ​</td></tr><tr><td>Increase (decrease) in accounts payable and other current liabilities Increase (decrease) in accounts payable and other current liabilities</td><td>​ ​</td><td> </td><td>( 3,138 ) ( 3,138 )</td><td>​ ​</td><td> </td><td>80,960 80,960</td><td>​ ​</td><td> </td><td>( 42,032 ) ( 42,032 )</td><td>​ ​</td></tr><tr><td>NET CASH PROVIDED BY OPERATING ACTIVITIES NET CASH PROVIDED BY OPERATING ACTIVITIES</td><td>​ ​</td><td> </td><td>692,462 692,462</td><td>​ ​</td><td> </td><td>736,334 736,334</td><td>​ ​</td><td> </td><td>480,376 480,376</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>CASH FLOWS FROM INVESTING ACTIVITIES: CASH FLOWS FROM INVESTING ACTIVITIES:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Purchases of marketable securities Purchases of marketable securities</td><td>​ ​</td><td> </td><td>( 1,430,733 ) ( 1,430,733 )</td><td>​ ​</td><td> </td><td>( 1,339,465 ) ( 1,339,465 )</td><td>​ ​</td><td> </td><td>( 1,834,403 ) ( 1,834,403 )</td><td>​ ​</td></tr><tr><td>Sales of marketable securities Sales of marketable securities</td><td>​ ​</td><td> </td><td>1,543,256 1,543,256</td><td>​ ​</td><td> </td><td>1,600,877 1,600,877</td><td>​ ​</td><td> </td><td>1,488,359 1,488,359</td><td>​ ​</td></tr><tr><td>Acquisition of property and equipment: Acquisition of property and equipment:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Aircraft and rotable spare parts Aircraft and rotable spare parts</td><td>​ ​</td><td> </td><td>( 265,854 ) ( 265,854 )</td><td>​ ​</td><td> </td><td>( 238,068 ) ( 238,068 )</td><td>​ ​</td><td> </td><td>( 632,460 ) ( 632,460 )</td><td>​ ​</td></tr><tr><td>Buildings and ground equipment Buildings and ground equipment</td><td>​ ​</td><td> </td><td>( 44,895 ) ( 44,895 )</td><td>​ ​</td><td> </td><td>( 13,258 ) ( 13,258 )</td><td>​ ​</td><td> </td><td>( 13,031 ) ( 13,031 )</td><td>​ ​</td></tr><tr><td>Proceeds from the sale of property and equipment Proceeds from the sale of property and equipment</td><td>​ ​</td><td> </td><td>5,154 5,154</td><td>​ ​</td><td> </td><td>15,879 15,879</td><td>​ ​</td><td> </td><td>16,983 16,983</td><td>​ ​</td></tr><tr><td>Deposits on aircraft Deposits on aircraft</td><td>​ ​</td><td>​ ​</td><td>( 17,535 ) ( 17,535 )</td><td>​ ​</td><td>​ ​</td><td>( 65,000 ) ( 65,000 )</td><td>​ ​</td><td>​ ​</td><td>( 37,100 ) ( 37,100 )</td><td>​ ​</td></tr><tr><td>Aircraft deposits applied towards acquired aircraft Aircraft deposits applied towards acquired aircraft</td><td>​ ​</td><td>​ ​</td><td>β€” β€”</td><td>​ ​</td><td>​ ​</td><td>11,649 11,649</td><td>​ ​</td><td>​ ​</td><td>138,383 138,383</td><td>​ ​</td></tr><tr><td>Decrease (increase) in investments and financing activities with third parties and other assets Decrease (increase) in investments and financing activities with third parties and other assets</td><td>​ ​</td><td> </td><td>( 18,020 ) ( 18,020 )</td><td>​ ​</td><td> </td><td>4,158 4,158</td><td>​ ​</td><td> </td><td>( 31,625 ) ( 31,625 )</td><td>​ ​</td></tr><tr><td>NET CASH USED IN INVESTING ACTIVITIES NET CASH USED IN INVESTING ACTIVITIES</td><td>​ ​</td><td> </td><td>( 228,627 ) ( 228,627 )</td><td>​ ​</td><td> </td><td>( 23,228 ) ( 23,228 )</td><td>​ ​</td><td> </td><td>( 904,894 ) ( 904,894 )</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>CASH FLOWS FROM FINANCING ACTIVITIES: CASH FLOWS FROM FINANCING ACTIVITIES:</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Proceeds from issuance of long-term debt Proceeds from issuance of long-term debt</td><td>​ ​</td><td> </td><td>116,165 116,165</td><td>​ ​</td><td> </td><td>69,689 69,689</td><td>​ ​</td><td> </td><td>684,502 684,502</td><td>​ ​</td></tr><tr><td>Principal payments on long-term debt Principal payments on long-term debt</td><td>​ ​</td><td> </td><td>( 452,855 ) ( 452,855 )</td><td>​ ​</td><td> </td><td>( 447,604 ) ( 447,604 )</td><td>​ ​</td><td> </td><td>( 415,050 ) ( 415,050 )</td><td>​ ​</td></tr><tr><td>Payment of debt issuance cost Payment of debt issuance cost</td><td>​ ​</td><td>​ ​</td><td>( 670 ) ( 670 )</td><td>​ ​</td><td>​ ​</td><td>( 175 ) ( 175 )</td><td>​ ​</td><td>​ ​</td><td>( 2,178 ) ( 2,178 )</td><td>​ ​</td></tr><tr><td>Net proceeds from issuance of common stock Net proceeds from issuance of common stock</td><td>​ ​</td><td> </td><td>2,864 2,864</td><td>​ ​</td><td> </td><td>2,811 2,811</td><td>​ ​</td><td> </td><td>2,957 2,957</td><td>​ ​</td></tr><tr><td>Employee income tax paid on vested equity awards Employee income tax paid on vested equity awards</td><td>​ ​</td><td>​ ​</td><td>( 6,930 ) ( 6,930 )</td><td>​ ​</td><td>​ ​</td><td>( 585 ) ( 585 )</td><td>​ ​</td><td>​ ​</td><td>( 1,150 ) ( 1,150 )</td><td>​ ​</td></tr><tr><td>Purchase of treasury stock and related excise tax Purchase of treasury stock and related excise tax</td><td>​ ​</td><td> </td><td>( 43,324 ) ( 43,324 )</td><td>​ ​</td><td> </td><td>( 291,949 ) ( 291,949 )</td><td>​ ​</td><td> </td><td>β€” β€”</td><td>​ ​</td></tr><tr><td>NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES</td><td>​ ​</td><td> </td><td>( 384,750 ) ( 384,750 )</td><td>​ ​</td><td> </td><td>( 667,813 ) ( 667,813 )</td><td>​ ​</td><td> </td><td>269,081 269,081</td><td>​ ​</td></tr><tr><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td><td>​ ​</td></tr><tr><td>Increase (decrease) in cash and cash equivalents Increase (decrease) in cash and cash equivalents</td><td>​ ​</td><td> </td><td>79,085 79,085</td><td>​ ​</td><td> </td><td>45,293 45,293</td><td>​ ​</td><td> </td><td>( 155,437 ) ( 155,437 )</td><td>​ ​</td></tr><tr><td>Cash and cash equivalents at beginning of period Cash and cash equivalents at beginning of period</td><td>​ ​</td><td> </td><td>148,277 148,277</td><td>​ ​</td><td> </td><td>102,984 102,984</td><td>​ ​</td><td> </td><td>258,421 258,421</td><td>​ ​</td></tr><tr><td>CASH AND CASH EQUIVALENTS AT END OF PERIOD CASH AND CASH EQUIVALENTS AT END OF PERIOD</td><td>​ ​</td><td>$ $</td><td>227,362 227,362</td><td>​ ​</td><td>$ $</td><td>148,277 148,277</td><td>​ ​</td><td>$ $</td><td>102,984 102,984</td><td>​ ​</td></tr></table>
table
23825
monetaryItemType
table: <entity> 23825 </entity> <entity type> monetaryItemType </entity type> <context> None </context>
us-gaap:DeferredIncomeTaxExpenseBenefit