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Earnings Per Common Share - Computation of basic and diluted EPS (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Basic earnings per common share:      
Net income $ 496,049 $ 475,543 $ 120,632
Weighted-average basic common shares 74,551 70,393 54,756
Basic earnings per common share (in dollars per share) $ 6.65 $ 6.76 $ 2.20
Diluted earnings per common share:      
Net income $ 496,049 $ 475,543 $ 120,632
Weighted-average basic common shares 74,551 70,393 54,756
Effect of dilutive securities (in shares) 630 496 307
Weighted-average dilutive shares 75,181 70,889 55,063
Diluted earnings per common share (in dollars per share) $ 6.60 $ 6.71 $ 2.19