Fair Value Measurements - Schedule of Assets Measured on Nonrecurring Basis (Detail) - Fair Value, Measurements, Nonrecurring [Member] - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually evaluated collateral dependent loans	$ 914	$ 914
Commercial and Industrial [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually evaluated collateral dependent loans	413	413
Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually evaluated collateral dependent loans	501	501
Level III [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually evaluated collateral dependent loans	914	914
Level III [Member] | Commercial and Industrial [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually evaluated collateral dependent loans	413	413
Level III [Member] | Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually evaluated collateral dependent loans	$ 501	$ 501