Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Diluted earnings per share of common stock:
Net income attributable to common stockholders	$ 129,163	$ 204,229	$ 302,756	$ 581,097
Weighted-average common stock outstanding applicable to basic earnings per share (in shares)	54,167	65,890	54,995	67,493
Effect of dilutive shares:
Common shares issuable under stock-based compensation plans (in shares)	2,475	3,509	2,897	3,755
Weighted-average shares of common stock applicable to diluted earnings per share (in shares)	56,642	69,399	57,892	71,248
Basic earnings per share of common stock (in dollars per share)	$ 2.38	$ 3.10	$ 5.51	$ 8.61
Diluted earnings per share of common stock (in dollars per share)	$ 2.28	$ 2.94	$ 5.23	$ 8.16
Total anti-dilutive shares and units (in shares)	2,076	557	1,901	388
Performance-based RSUs
Effect of dilutive shares:
Total anti-dilutive shares and units (in shares)	508	308	412	215
Time-based RSUs
Effect of dilutive shares:
Total anti-dilutive shares and units (in shares)	144		233
Stock Options
Effect of dilutive shares:
Total anti-dilutive shares and units (in shares)	1,424	249	1,256	173
Weighted-average exercise price of anti-dilutive stock options (in dollars per share)	$ 58.49	$ 58.85	$ 58.68	$ 58.85