Income Taxes - Income Tax Expense (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Income Tax Disclosure [Abstract]
Current income tax expense	$ 35,327	$ 32,345	$ 68,972	$ 61,807
Deferred income tax expense (benefit)	(2,844)	(2,728)	(5,070)	(4,017)
Income tax expense, as reported	$ 32,483	$ 29,617	$ 63,902	$ 57,790
Effective tax rate	15.90%	15.90%	15.70%	15.80%