Stockholders' Equity and Earnings Per Share - Earnings Per Share Calculation (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
Basic:
Net income	$ 258,329	$ 224,742	$ 495,981	$ 429,736
Weighted-average number of shares outstanding (in shares)	141,429	141,868	141,725	141,758
Basic EPS (in dollars per share)	$ 1.83	$ 1.58	$ 3.50	$ 3.03
Diluted:
Net income	$ 258,329	$ 224,742	$ 495,981	$ 429,736
Weighted-average number of shares outstanding (in shares)	141,429	141,868	141,725	141,758
Add: Dilutive impact of unvested RSUs (in shares)	943	1,172	1,113	1,205
Diluted weighted-average number of shares outstanding (in shares)	142,372	143,040	142,838	142,963
Diluted EPS (in dollars per share)	$ 1.81	$ 1.57	$ 3.47	$ 3.01