Summary of Significant Accounting Policies - Additional Information (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	Nov. 30, 2022
Summary Of Significant Accounting Policies [Line Items]
Period for federal funds sold outstanding									1 day
Loan non-accrual classification period									90 days
Days to charged consumer loans to the value of the collateral									90 days
Maximum time for re-evaluation (in months)									12 months
Re-evaluation period for real estate									2 years
Amount of fair value of capital over carrying value												$ 427,500
Percentage of fair value of capital over carrying value												137.20%
Number of times fair value of capital in excess of carrying value of goodwill description									over 4.9 times
Other real estate owned	$ 0				$ 159				$ 0	$ 159
Percentage of likelihood of realization of recognized tax benefit, minimum									50.00%
Provision for loan loss	$ 755	$ 1,637	$ 1,628	$ 580	$ 444	$ 659	$ 641	$ 1,700	$ 4,600	$ 3,444	$ 6,981
Maximum [Member]
Summary Of Significant Accounting Policies [Line Items]
Maturity period of cash equivalents									3 months
Maximum [Member] | Accounting Standards Update 2016-13 [Member] | One-time Cumulative-effect Adjustment [Member]
Summary Of Significant Accounting Policies [Line Items]
Provision for loan loss									$ 7,000
Minimum [Member] | Accounting Standards Update 2016-13 [Member] | One-time Cumulative-effect Adjustment [Member]
Summary Of Significant Accounting Policies [Line Items]
Provision for loan loss									$ 3,000