Earnings Per Share - Basic and Diluted Loss Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2022	Sep. 30, 2021
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Net income	$ 144,400	$ 189,542	$ 148,421	$ 145,954	$ 154,352	$ 110,690	$ 482,363	$ 410,996
Less: distributed earnings allocated to participating securities	(180)			(155)			(535)	(446)
Less: undistributed earnings allocated to participating securities	(522)			(602)			(1,784)	(1,668)
Net income attributable to common stockholders (numerator for basic earnings per share)	143,698			145,197			480,044	408,882
Add back: undistributed earnings allocated to participating securities	522			602			1,784	1,668
Less: undistributed earnings reallocated to participating securities	(513)			(584)			(1,745)	(1,615)
Numerator for diluted earnings per share under two class method	$ 143,707			$ 145,215			$ 480,083	$ 408,935
Weighted-average common shares outstanding (in shares)	70,880,405			70,301,085			70,829,761	70,130,853
Denominator for diluted earnings per share under two class method (in shares)	72,729,453			72,800,011			72,892,635	72,770,432
Basic Earnings Per Common Share (in dollars per share)	$ 2.03			$ 2.07			$ 6.78	$ 5.83
Diluted Earnings Per Common Share (in dollars per share)	$ 1.98			$ 1.99			$ 6.59	$ 5.62
Stock option grants expense
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Weighted-average common shares outstanding, dilutive effect of stock options and contingently issuable equity awards (in shares)	1,189,243			2,202,045			1,573,814	2,330,667
Contingently issuable equity awards
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Weighted-average common shares outstanding, dilutive effect of stock options and contingently issuable equity awards (in shares)	659,805			296,881			489,060	308,912