Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Diluted earnings per share of common stock:
Net income attributable to common stockholders	$ 173,593	$ 376,868
Weighted-average common stock outstanding applicable to basic earnings per share (in shares)	55,831	69,113
Effect of dilutive shares:
Common shares issuable under stock-based compensation plans (in shares)	3,298	4,004
Weighted-average shares of common stock applicable to diluted earnings per share (in shares)	59,129	73,117
Basic earnings per share of common stock (in dollars per share)	$ 3.11	$ 5.45
Diluted earnings per share of common stock (in dollars per share)	$ 2.94	$ 5.15
Total anti-dilutive shares and units (in shares)	799	217
Performance-based RSUs
Effect of dilutive shares:
Total anti-dilutive shares and units (in shares)	300	120
Time-based RSUs
Effect of dilutive shares:
Total anti-dilutive shares and units (in shares)	137
Stock Options
Effect of dilutive shares:
Total anti-dilutive shares and units (in shares)	362	97
Weighted-average exercise price of anti-dilutive stock options (in dollars per share)	$ 57.71	$ 58.85