v3.25.4
Derivative Financial Instruments - Summary of Recorded Net Gains or Losses on Derivatives and Related Hedged Items in Fair Value Hedging Relationships (Detail) - Fair Value Hedging [Member] - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Derivative Instruments, Gain (Loss) [Line Items]      
Gain/(Loss) on Derivatives $ (455) $ (103) $ (508)
Gain/(Loss) on Hedged Items 479 121 525
Net Fair Value Hedge Gain/(Loss) 24 18 17
Effect of Derivatives on Net Interest Income 444 612 717
Commercial Real Estate [Member]      
Derivative Instruments, Gain (Loss) [Line Items]      
Gain/(Loss) on Derivatives (455) (103) (508)
Gain/(Loss) on Hedged Items 479 121 525
Net Fair Value Hedge Gain/(Loss) 24 18 17
Effect of Derivatives on Net Interest Income $ 444 $ 612 $ 717