v3.26.1
Fair Value Measurements - Schedule of Assets Measured on Nonrecurring Basis (Detail) - Fair Value, Measurements, Nonrecurring [Member] - USD ($)
$ in Thousands
Jun. 30, 2026
Dec. 31, 2025
Financing Receivable, Allowance for Credit Loss [Line Items]    
Individually evaluated collateral dependent loans $ 29,693 $ 27,935
Commercial and Industrial [Member]    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Individually evaluated collateral dependent loans 6,906 7,489
Commercial Real Estate [Member]    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Individually evaluated collateral dependent loans 22,787 20,446
Level III [Member]    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Individually evaluated collateral dependent loans 29,693 27,935
Level III [Member] | Commercial and Industrial [Member]    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Individually evaluated collateral dependent loans 6,906 7,489
Level III [Member] | Commercial Real Estate [Member]    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Individually evaluated collateral dependent loans $ 22,787 $ 20,446