Loans - Recorded Investment for Consumer Loans, Credit Quality based on Status of Loan and Payment Activity (Detail) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans after net deferred loan fees and costs	$ 2,356,387	$ 1,857,419
Performing	659	1,449
Consumer - Credit [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing		3,919
Consumer - Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing	89,894	53,910
Performing [Member] | Consumer - Credit [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing		3,906
Performing [Member] | Consumer - Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing	89,853	53,820
Nonperforming [Member] | Consumer - Credit [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing		13
Nonperforming [Member] | Consumer - Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Performing	41	90
Consumer Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans after net deferred loan fees and costs	494,423	395,805
Performing	405	712
Pass [Member] | Consumer Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans after net deferred loan fees and costs	492,575	392,940
5 [Member] | Consumer Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans after net deferred loan fees and costs	676	1,673
6 [Member] | Consumer Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans after net deferred loan fees and costs	$ 1,172	$ 1,192