Components of Income Tax Expense (Benefit) (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Expenses [Line Items]
Current income tax expense (benefit), Federal	$ 32,137	$ (1,928)	$ 5,324
Current income tax expense (benefit), State	6,592	1,369	3,677
Current income tax expense (benefit), Total	38,729	(559)	9,001
Deferred income tax expense (benefit), Federal	86,703	3,878	(489)
Deferred income tax expense (benefit), State	12,567	1,067	(673)
Deferred income tax expense (benefit), Total	99,270	4,945	(1,162)
Income tax expense	$ 137,999	$ 4,386	$ 7,839