Selected Quarterly Financial Data (Unaudited) - Schedule of Selected Quarterly Financial Data (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Quarterly Financial Information Disclosure [Abstract]
Revenues, net	$ 802,255	$ 755,477	$ 667,381	$ 608,623	$ 617,333	$ 585,283	$ 525,146	$ 661,093	$ 2,833,736	$ 2,388,855	$ 2,648,848
Operating income	340,292	338,687	297,612	265,965	293,939	264,532	212,811	200,983	1,242,556	972,265	1,231,430
Net income	$ 225,004	$ 234,007	$ 196,247	$ 184,239	$ 209,851	$ 188,817	$ 158,488	$ 147,060	$ 839,497	$ 704,216	$ 895,073
Earnings per share:
Basic earnings per share (in usd per share)	$ 2.80	$ 2.86	$ 2.36	$ 2.21	$ 2.51	$ 2.26	$ 1.89	$ 1.73	$ 10.23	$ 8.38	$ 10.36
Diluted earnings per share (in usd per share)	$ 2.74	$ 2.80	$ 2.30	$ 2.15	$ 2.44	$ 2.19	$ 1.83	$ 1.67	$ 9.99	$ 8.12	$ 9.94
Weighted average shares outstanding:
Basic (in shares)	80,228	81,836	83,141	83,475	83,514	83,719	83,895	84,902	82,060	84,005	86,401
Diluted (in shares)	81,981	83,716	85,295	85,764	85,846	86,273	86,570	88,205	84,061	86,719	90,070