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Earnings per Share (EPS) - Reconciliation of Net Income and Weighted Average Common Shares Outstanding (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Earnings Per Share [Abstract]    
Net income $ 274,167 $ 135,648
Basic weighted average shares outstanding (in shares) 108,166 112,016
Dilutive effect of nonvested shares (in shares) 424 362
Diluted weighted average shares outstanding (in shares) 108,590 112,378
Basic earnings per share (in dollars per share) $ 2.53 $ 1.21
Diluted earnings per share (in dollars per share) $ 2.52 $ 1.21