Income Taxes - Summary of Income Tax Provision Reconciled to Income Taxes that Computed at Statutory Federal Rate (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Federal income tax, at statutory rates	$ 23,266	$ 30,238	$ 26,740
Increase (deduction) in taxes resulting from:
Tax-exempt income	(2,038)	(2,085)	(1,114)
State income tax, net of federal income tax effect	3,913	6,942	6,176
Excess tax (benefits) expense from employee share-based payments	(129)	(69)	89
Non-deductible expenses	751	1,524	0
Other, net	290	73	403
Total provision for income taxes	$ 26,053	$ 36,623	$ 32,294