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, 2025	Mar. 31, 2025	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2025	Jun. 30, 2024
Numerator:
Net income available to common shareholders	$ 75,909	$ 60,434	$ 86,998	$ 89,070	$ 136,343	$ 176,068
Denominator:
Basic weighted average shares outstanding	107,227,128		108,693,887		107,204,024	108,667,028
Effect of dilutive securities:
Diluted weighted average shares outstanding	107,296,203		108,810,296		107,290,272	108,803,081
Basic earnings per share	$ 0.71		$ 0.8		$ 1.27	$ 1.62
Diluted earnings per share	$ 0.71		$ 0.8		$ 1.27	$ 1.62
Stock appreciation rights [Member]
Effect of dilutive securities:
Dilutive securities	27,256		54,233		30,900	62,718
Restricted stock [Member]
Effect of dilutive securities:
Dilutive securities	41,819		62,176		55,348	73,335