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Earnings Per Share (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Numerator    
Net income (in US dollars) $ 111,473 $ 73,386
Denominator    
Weighted average shares outstanding used to compute basic earnings per common share (in shares) 47,775,819 52,713,005
Effect of dilutive securities-Share-based awards (in shares) 169,996 203,554
Shares used to compute diluted earnings per common share (in shares) 47,945,815 52,916,559
Basic earnings per common share (in US dollars per share) $ 2.33 $ 1.39
Diluted earnings per common share (in US dollars per share) $ 2.32 $ 1.39
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Anti-dilutive share-based awards excluded from calculation of diluted earnings per share (in shares) 0 62,481