Loans and Allowance for Credit Losses - Summary of Non Accrual Loan (Detail) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2023	Dec. 31, 2022
Receivables [Abstract]
Total nonaccrual loans	$ 17,994	$ 32,133
Interest foregone year to date	355	1,267
Amount of foregone interest applied to principal for the year	78	375
Interest foregone life-to-date	2,472	2,419
Amount of foregone interest applied to principal life-to-date	$ 813	$ 1,204
Percentage of nonaccrual loans to gross loan portfolio	0.90%	1.70%
Percentage of allowance for credit losses to nonaccrual loans	354.80%	198.70%