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Consolidated Statements of Stockholders' Equity - USD ($)
shares in Thousands, $ in Thousands
Common Stock [Member]
Additional Paid-in Capital [Member]
Retained Earnings [Member]
Total
Balance (in shares) at Dec. 31, 2019 82,055      
Balance at Dec. 31, 2019 $ 821 $ 79,465 $ 517,303 $ 597,589
Net income $ 0 0 69,500 69,500
Repurchase and retirement of common stock (in shares) (53)      
Repurchase and retirement of common stock $ (1) (596) 0 (597)
Issuance of common stock from share-based payment arrangement exercises and vesting of performance unit awards (in shares) 703      
Issuance of common stock from share-based payment arrangement exercises and vesting of performance unit awards $ 7 4,787 (1) 4,793
Employee taxes paid in exchange for shares withheld 0 (437) 0 (437)
Share-based payment arrangement compensation expense 0 1,851 0 1,851
Dividends on common stock $ 0 0 (52,366) (52,366)
Balance (in shares) at Dec. 31, 2020 82,705      
Balance at Dec. 31, 2020 $ 827 85,070 534,436 620,333
Net income $ 0 0 85,428 85,428
Issuance of common stock from share-based payment arrangement exercises and vesting of performance unit awards (in shares) 329      
Issuance of common stock from share-based payment arrangement exercises and vesting of performance unit awards $ 3 873 0 876
Employee taxes paid in exchange for shares withheld 0 (2,743) 0 (2,743)
Share-based payment arrangement compensation expense 0 2,518 0 2,518
Dividends on common stock $ 0 0 (54,735) (54,735)
Balance (in shares) at Dec. 31, 2021 83,034      
Balance at Dec. 31, 2021 $ 830 85,718 565,129 651,677
Net income $ 0 0 110,354 110,354
Repurchase and retirement of common stock (in shares) (2,270)      
Repurchase and retirement of common stock $ (23) (41,730) 0 (41,753)
Issuance of common stock from share-based payment arrangement exercises and vesting of performance unit awards (in shares) 351      
Issuance of common stock from share-based payment arrangement exercises and vesting of performance unit awards $ 4 1,996 0 2,000
Employee taxes paid in exchange for shares withheld 0 (1,610) 0 (1,610)
Share-based payment arrangement compensation expense 0 2,814 0 2,814
Dividends on common stock $ 0 0 (19,563) (19,563)
Balance (in shares) at Dec. 31, 2022 81,115      
Balance at Dec. 31, 2022 $ 811 $ 47,188 $ 655,920 $ 703,919