Income Taxes - Components of Consolidated Income Tax Expense (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Current tax expense
Federal									$ 34,155	$ 28,763	$ 22,104
State									22,355	18,221	14,586
Current tax expense, Total									56,510	46,984	36,690
Deferred tax expense
Federal									(5,224)	(872)	(9,500)
State									(2,798)	(64)	(4,654)
Deferred tax benefit, Total									(8,022)	(936)	(14,154)
Total tax expense	$ 14,723	$ 14,148	$ 11,748	$ 7,869	$ 10,404	$ 11,534	$ 10,767	$ 13,343	$ 48,488	$ 46,048	$ 22,536