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Earnings (Loss) Per Share - Calculation of Earnings Per Share (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
BASIC    
Net income (loss) $ (2,910) $ 6,993
Weighted-average common shares outstanding, basic (in shares) 12,812 13,803
Basic earnings per share (in dollars per share) $ (0.23) $ 0.51
DILUTED    
Net income (loss) $ (2,910) $ 6,993
Weighted-average common shares outstanding, basic (in shares) 12,812 13,803
Dilutive effect of stock options, restricted stock and common stock warrants (in shares) 0 396
Weighted-average common shares outstanding on a diluted basis (in shares) 12,812 14,199
Diluted earnings per share (in dollars per share) $ (0.23) $ 0.49