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Net Income per Common Share (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Earnings Per Share [Abstract]        
Antidilutive securities excluded from computation of earnings per share (in shares) 147,344   147,344  
Numerator for basic and dilutive net income per common share – net income allocable to common shareholders $ 2,712,161 $ 442,327 $ 3,779,666 $ 1,174,386
Denominator for basic net income per share - weighted average common shares outstanding 175,283,000 174,926,000 175,227,000 174,787,000
Net effect of dilutive stock options - based on treasury stock method 1,045,000 880,000 1,098,000 611,000
Denominator for dilutive net income per share - weighted average common shares outstanding 176,328,000 175,806,000 176,325,000 175,398,000
Basic (in USD per share) $ 15.47 $ 2.53 $ 21.57 $ 6.72
Diluted (in USD per share) $ 15.38 $ 2.52 $ 21.44 $ 6.70