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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands | Cumulative Effect, Period of Adoption, Adjustment [Member] Retained Earnings | Cumulative Effect, Period of Adoption, Adjustment [Member] | Common Stock | Treasury Stock | Additional Paid-In Capital | Retained Earnings | Total
--- | --- | --- | --- | --- | --- | --- | ---
BALANCE at Dec. 31, 2019 |  |  | $ 411 | $ (103,960) | $ 320,168 | $ 368,685 | $ 585,304
BALANCE (in shares) at Dec. 31, 2019 |  |  | 41,123,365 |  |  |  |
BALANCE (in shares) at Dec. 31, 2019 |  |  |  | (4,465,448) |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |  |
Net income |  |  |  |  |  | 150,139 | 150,139
Issuance of Stock: |  |  |  |  |  |  |
Issuance of shares for options exercised |  |  |  | $ 2,811 | (667) |  | 2,144
Issuance of shares for options exercised (in shares) |  |  |  | 113,731 |  |  |
Issuance of restricted stock & performance stock |  |  |  | $ 3,102 | (1,247) |  | 1,855
Issuance of restricted stock & performance stock (in shares) |  |  |  | 128,889 |  |  |
Shares received in lieu of tax withholding payment on vested restricted stock |  |  |  | $ (1,076) |  |  | (1,076)
Shares received in lieu of tax withholding payment on vested restricted stock (in shares) |  |  |  | (27,724) |  |  |
Stock-based compensation |  |  |  |  | 4,197 |  | 4,197
Dividends |  |  |  |  |  | (15,499) | (15,499)
Share repurchase |  |  |  | $ (30,120) |  |  | (30,120)
Share repurchase (in shares) |  |  |  | (684,634) |  |  |
BALANCE at Dec. 31, 2020 | $ (515) | $ (515) | $ 411 | $ (129,243) | 322,451 | 502,810 | 696,429
BALANCE (in shares) at Dec. 31, 2020 |  |  | 41,123,365 |  |  |  |
BALANCE (in shares) at Dec. 31, 2020 |  |  |  | (4,935,186) |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |  |
Net income |  |  |  |  |  | 143,348 | 143,348
Issuance of Stock: |  |  |  |  |  |  |
Issuance of shares for options exercised |  |  |  | $ 5,399 | 235 |  | 5,634
Issuance of shares for options exercised (in shares) |  |  |  | 195,724 |  |  |
Issuance of restricted stock & performance stock |  |  |  | $ 2,681 | (473) |  | 2,208
Issuance of restricted stock & performance stock (in shares) |  |  |  | 101,360 |  |  |
Shares received in lieu of tax withholding payment on vested restricted stock |  |  |  | $ (2,363) |  |  | (2,363)
Shares received in lieu of tax withholding payment on vested restricted stock (in shares) |  |  |  | (31,413) |  |  |
Stock-based compensation |  |  |  |  | 4,848 |  | 4,848
Dividends |  |  |  |  |  | (17,384) | (17,384)
Share repurchase |  |  |  | $ (27,054) |  |  | (27,054)
Share repurchase (in shares) |  |  |  | (362,796) |  |  |
BALANCE at Dec. 31, 2021 |  |  | $ 411 | $ (150,580) | 327,061 | 628,774 | $ 805,666
BALANCE (in shares) at Dec. 31, 2021 |  |  | 41,123,365 |  |  |  | 41,123,365
BALANCE (in shares) at Dec. 31, 2021 |  |  |  | (5,032,311) |  |  | 5,032,311
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |  |
Net income |  |  |  |  |  | 245,947 | $ 245,947
Issuance of Stock: |  |  |  |  |  |  |
Issuance of shares for options exercised |  |  |  | $ 1,174 | (88) |  | 1,086
Issuance of shares for options exercised (in shares) |  |  |  | 34,187 |  |  |
Issuance of restricted stock & performance stock |  |  |  | $ 3,657 | (113) |  | 3,544
Issuance of restricted stock & performance stock (in shares) |  |  |  | 113,955 |  |  |
Shares received in lieu of tax withholding payment on vested restricted stock |  |  |  | $ (3,247) |  |  | (3,247)
Shares received in lieu of tax withholding payment on vested restricted stock (in shares) |  |  |  | (36,006) |  |  |
Stock-based compensation |  |  |  |  | 5,220 |  | 5,220
Dividends |  |  |  |  |  | (20,077) | (20,077)
Share repurchase |  |  |  | $ (38,216) |  |  | (38,216)
Share repurchase (in shares) |  |  |  | (442,049) |  |  |
BALANCE at Dec. 31, 2022 |  |  | $ 411 | $ (187,212) | $ 332,080 | $ 854,644 | $ 999,923
BALANCE (in shares) at Dec. 31, 2022 |  |  | 41,123,365 |  |  |  | 41,123,365
BALANCE (in shares) at Dec. 31, 2022 |  |  |  | (5,362,224) |  |  | 5,362,224

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