Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Diluted earnings per share of common stock:
Net income attributable to common stockholders	$ 135,134	$ 249,310	$ 437,890	$ 830,407
Weighted-average common stock outstanding applicable to basic earnings per share (in shares)	52,170	62,085	54,043	65,671
Effect of dilutive shares:
Common shares issuable under stock-based compensation plans (in shares)	2,798	3,567	2,870	3,670
Weighted-average shares of common stock applicable to diluted earnings per share (in shares)	54,968	65,652	56,913	69,341
Basic earnings per share of common stock (in dollars per share)	$ 2.59	$ 4.02	$ 8.10	$ 12.65
Diluted earnings per share of common stock (in dollars per share)	$ 2.46	$ 3.80	$ 7.69	$ 11.98
Total anti-dilutive shares and units (in shares)	1,748	551	1,696	511
Performance-based RSUs
Effect of dilutive shares:
Total anti-dilutive shares and units (in shares)	325	302	268	244
Time-based RSUs
Effect of dilutive shares:
Total anti-dilutive shares and units (in shares)			116	68
Stock Options
Effect of dilutive shares:
Total anti-dilutive shares and units (in shares)	1,423	249	1,312	199
Weighted-average exercise price of anti-dilutive stock options (in dollars per share)	$ 58.49	$ 58.85	$ 58.61	$ 58.85