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Derivatives and Hedging Activities - Effect of Cash Flow Hedge Accounting on Accumulated Other Comprehensive Income and the Consolidated Statements of Income (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Interest rate swaps - variable rate liabilities    
Derivative Instruments, Gain (Loss) [Line Items]    
Amount of Gain (Loss) Recognized in OCI $ 245 $ (307)
Interest income | Interest rate swaps - variable rate liabilities    
Derivative Instruments, Gain (Loss) [Line Items]    
Amount of Gain Reclassified from AOCI into Income 359 507
Other noninterest expense | Interest rate contracts | Not Designated as Hedging Instrument    
Derivative Instruments, Gain (Loss) [Line Items]    
Reclassification adjustment for income (loss) (1) (11)
Other noninterest expense | Risk participation agreements | Not Designated as Hedging Instrument    
Derivative Instruments, Gain (Loss) [Line Items]    
Reclassification adjustment for income (loss) $ 0 $ 0