Earnings Per Share - Summary of Earnings Per Share, Basic and Diluted (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Earnings Per Share [Abstract]
Net income	$ 217,952	$ 184,239
Denominator for basic earnings per share (in shares)	77,737	83,475
Dilutive securities (in shares)	1,549	2,289
Denominator for diluted earnings per share (in shares)	79,286	85,764
Basic earnings per share (in dollars per share)	$ 2.80	$ 2.21
Diluted earnings per share (in dollars per share)	$ 2.75	$ 2.15