v3.26.1
Derivative Financial Instruments - Summary of Recorded Net Gains (Losses) on Derivatives and Related Hedged Items in Fair Value Hedging Relationships (Detail) - Fair Value Hedging [Member] - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Derivative Instruments, Gain (Loss) [Line Items]    
Gain/(Loss) on Derivatives $ (18) $ (199)
Gain/(Loss) on Hedged Items 22 206
Net Fair Value Hedge Gain/(Loss) 4 7
Effect of Derivatives on Net Interest Income 86 115
Commercial Real Estate [Member]    
Derivative Instruments, Gain (Loss) [Line Items]    
Gain/(Loss) on Derivatives (18) (199)
Gain/(Loss) on Hedged Items 22 206
Net Fair Value Hedge Gain/(Loss) 4 7
Effect of Derivatives on Net Interest Income $ 86 $ 115