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Earnings Per Share (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Numerator:    
Net income $ 28,005 $ 33,715
Denominator:    
Weighted-average common shares for calculating basic earnings per share (shares) 48,241 41,034
Stock options and nonvested stock awards (shares) 59 22
Weighted-average common shares for calculating diluted earnings per share (shares) 48,300 41,056
Earnings per share:    
Basic (USD per share) $ 0.58 $ 0.82
Diluted (USD per share) $ 0.58 $ 0.82