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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