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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands | Common Stock | Additional Paid-In Capital | Retained Earnings | Treasury Stock | Accumulated Other Comprehensive Income | Stock Repurchase Program | Total
--- | --- | --- | --- | --- | --- | --- | ---
Balances at Dec. 31, 2021 | $ 294 | $ 318,033 | $ 801,314 | $ (194,273) | $ 3,699 |  | $ 929,067
Balances (in shares) at Dec. 31, 2021 | 29,360,000 |  |  |  |  |  |
Balances, Treasury stock (in shares) at Dec. 31, 2021 |  |  |  | 4,493,000 |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |  |
Net income |  |  | 260,872 |  |  |  | 260,872
Other comprehensive income (loss), net of tax |  |  |  |  | 279 |  | 279
Issuance of common stock under share-based compensation plans | $ 3 | (3) |  |  |  |  |
Issuance of common stock under share-based compensation plans (in shares) | 388,000 |  |  |  |  |  |
Shares withheld for employee tax remittance on share-based compensation |  | (15,733) |  |  |  |  | (15,733)
Share-based compensation expense |  | 9,816 |  |  |  |  | 9,816
Purchase of treasury stock |  |  |  | $ (50,117) |  |  | (50,117)
Purchase of treasury stock (in shares) |  |  |  | 634,000 |  |  |
Forward contract for accelerated share repurchase |  | 25,000 |  | $ (25,000) |  |  |
Forward contract for accelerated share repurchase (in shares) |  |  |  | 214,000 |  |  |
Dividends declared on common stock |  |  | (7,892) |  |  |  | (7,892)
Balances at Sep. 30, 2022 | $ 297 | 337,113 | 1,054,294 | $ (269,390) | 3,978 |  | 1,126,292
Balances (in shares) at Sep. 30, 2022 | 29,748,000 |  |  |  |  |  |
Balances, Treasury stock (in shares) at Sep. 30, 2022 |  |  |  | 5,341,000 |  |  |
Balances at Jun. 30, 2022 | $ 296 | 340,035 | 968,417 | $ (250,510) | 4,974 |  | 1,063,212
Balances (in shares) at Jun. 30, 2022 | 29,615,000 |  |  |  |  |  |
Balances, Treasury stock (in shares) at Jun. 30, 2022 |  |  |  | 5,109,000 |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |  |
Net income |  |  | 88,842 |  |  |  | 88,842
Other comprehensive income (loss), net of tax |  |  |  |  | (996) |  | (996)
Issuance of common stock under share-based compensation plans | $ 1 | (1) |  |  |  |  |
Issuance of common stock under share-based compensation plans (in shares) | 133,000 |  |  |  |  |  |
Shares withheld for employee tax remittance on share-based compensation |  | (6,096) |  |  |  |  | (6,096)
Share-based compensation expense |  | 3,175 |  |  |  |  | 3,175
Purchase of treasury stock |  |  |  | $ (18,880) |  |  | (18,880)
Purchase of treasury stock (in shares) |  |  |  | 232,000 |  |  |
Dividends declared on common stock |  |  | (2,965) |  |  |  | (2,965)
Balances at Sep. 30, 2022 | $ 297 | 337,113 | 1,054,294 | $ (269,390) | 3,978 |  | 1,126,292
Balances (in shares) at Sep. 30, 2022 | 29,748,000 |  |  |  |  |  |
Balances, Treasury stock (in shares) at Sep. 30, 2022 |  |  |  | 5,341,000 |  |  |
Balances at Dec. 31, 2022 | $ 298 | 339,582 | 1,088,693 | $ (284,275) | 7,103 |  | $ 1,151,401
Balances (in shares) at Dec. 31, 2022 | 29,759,000 |  |  |  |  |  |
Balances, Treasury stock (in shares) at Dec. 31, 2022 |  |  |  | 5,529,000 |  |  | 5,529,383
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |  |
Net income |  |  | 146,643 |  |  |  | $ 146,643
Other comprehensive income (loss), net of tax |  |  |  |  | (1,517) |  | (1,517)
Issuance of common stock under share-based compensation plans | $ 2 | (2) |  |  |  |  |
Issuance of common stock under share-based compensation plans (in shares) | 259,000 |  |  |  |  |  |
Shares withheld for employee tax remittance on share-based compensation |  | (10,056) |  |  |  |  | (10,056)
Share-based compensation expense |  | 8,844 |  |  |  |  | 8,844
Purchase of treasury stock |  |  |  | $ (65,886) |  | $ (65,900) | (65,886)
Purchase of treasury stock (in shares) |  |  |  | 689,000 |  | 688,502 |
Dividends declared on common stock |  |  | (8,696) |  |  |  | (8,696)
Balances at Sep. 30, 2023 | $ 300 | 338,368 | 1,226,640 | $ (350,161) | 5,586 |  | $ 1,220,733
Balances (in shares) at Sep. 30, 2023 | 30,018,000 |  |  |  |  |  |
Balances, Treasury stock (in shares) at Sep. 30, 2023 |  |  |  | 6,218,000 |  |  | 6,217,885
Balances at Jun. 30, 2023 | $ 300 | 335,397 | 1,194,610 | $ (325,515) | 6,569 |  | $ 1,211,361
Balances (in shares) at Jun. 30, 2023 | 30,008,000 |  |  |  |  |  |
Balances, Treasury stock (in shares) at Jun. 30, 2023 |  |  |  | 5,983,000 |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |  |
Net income |  |  | 34,917 |  |  |  | 34,917
Other comprehensive income (loss), net of tax |  |  |  |  | (983) |  | (983)
Issuance of common stock under share-based compensation plans (in shares) | 10,000 |  |  |  |  |  |
Shares withheld for employee tax remittance on share-based compensation |  | (34) |  |  |  |  | (34)
Share-based compensation expense |  | 3,005 |  |  |  |  | 3,005
Purchase of treasury stock |  |  |  | $ (24,646) |  |  | (24,646)
Purchase of treasury stock (in shares) |  |  |  | 235,000 |  |  |
Dividends declared on common stock |  |  | (2,887) |  |  |  | (2,887)
Balances at Sep. 30, 2023 | $ 300 | $ 338,368 | $ 1,226,640 | $ (350,161) | $ 5,586 |  | $ 1,220,733
Balances (in shares) at Sep. 30, 2023 | 30,018,000 |  |  |  |  |  |
Balances, Treasury stock (in shares) at Sep. 30, 2023 |  |  |  | 6,218,000 |  |  | 6,217,885

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