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 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Derivative Instruments, Gain (Loss) [Line Items]        
Gain/(Loss) on Derivatives $ 21 $ (119) $ 3 $ (318)
Gain/(Loss) on Hedged Items (177) 126 (155) 332
Net Fair Value Hedge Gain/(Loss) (156) 7 (152) 14
Effect of Derivatives on Net Interest Income 65 113 151 228
Commercial Real Estate [Member]        
Derivative Instruments, Gain (Loss) [Line Items]        
Gain/(Loss) on Derivatives 21 (119) 3 (318)
Gain/(Loss) on Hedged Items (177) 126 (155) 332
Net Fair Value Hedge Gain/(Loss) (156) 7 (152) 14
Effect of Derivatives on Net Interest Income $ 65 $ 113 $ 151 $ 228