Stockholders' Equity - Computation of Basic and Diluted Earnings Per Share (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2022	Jun. 30, 2021
Numerator:
Net income	$ 88,916	$ 71,211	$ 61,366	$ 48,545	$ 160,127	$ 109,910
Denominator:
Basic weighted average shares outstanding	113,099,561		115,362,757		113,864,741	115,512,231
Effect of dilutive securities:
Diluted weighted average shares outstanding	113,259,514		115,662,626		114,052,447	115,839,183
Basic earnings per share	$ 0.79		$ 0.53		$ 1.41	$ 0.95
Diluted earnings per share	$ 0.79		$ 0.53		$ 1.4	$ 0.95
Stock appreciation rights [Member]
Effect of dilutive securities:
Dilutive securities	96,179		193,466		110,253	200,263
Restricted stock [Member]
Effect of dilutive securities:
Dilutive securities	63,774		106,403		77,453	126,689