v3.26.1
Derivatives and Hedging Activities - Summary of Amount of Gain (Loss) Recognized in Other Noninterest Income in Consolidated Statements of Income Related to Derivative Assets and Liabilities (Detail) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Interest Rate Derivatives [Member]        
Derivative Instruments, Gain (Loss) [Line Items]        
Amount of Gain (Loss) Recognized $ 65 $ (92) $ 36 $ (182)
Commodity Derivatives [Member]        
Derivative Instruments, Gain (Loss) [Line Items]        
Amount of Gain (Loss) Recognized 171   247  
Derivatives not Designated as Hedging Instruments [Member] | Interest Rate Derivatives [Member]        
Derivative Instruments, Gain (Loss) [Line Items]        
Amount of Gain (Loss) Recognized 65 $ (92) 36 $ (182)
Derivatives not Designated as Hedging Instruments [Member] | Commodity Derivatives [Member]        
Derivative Instruments, Gain (Loss) [Line Items]        
Amount of Gain (Loss) Recognized $ 171   $ 247