v3.26.3
Derivative Financial Instruments (Derivatives, Effect in Statements of Income) (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Derivative Instruments, Gain (Loss) [Line Items]        
Amount of Gain (Loss) Recognized in Statements of Income (Loss) $ 2,433 $ (1,495) $ 917 $ (4,794)
Interest rate swaps | Derivatives Designated as Hedging Instruments | Cash Flow Hedging Instruments | Interest and Fees on Loans        
Derivative Instruments, Gain (Loss) [Line Items]        
Amount of Gain (Loss) Recognized in Statements of Income (Loss) 0 (2,163) (2,845) (6,418)
Interest rate swaps | Derivatives Designated as Hedging Instruments | Cash Flow Hedging Instruments | Interest on FHLB advances        
Derivative Instruments, Gain (Loss) [Line Items]        
Amount of Gain (Loss) Recognized in Statements of Income (Loss) 81 195 107 581
Interest rate swaps | Derivatives Designated as Hedging Instruments | Fair Value Hedging Instruments        
Derivative Instruments, Gain (Loss) [Line Items]        
Amount of Gain (Loss) Recognized in Statements of Income (Loss) 718 75 1,858 (1,223)
Interest rate floors | Derivatives Designated as Hedging Instruments | Cash Flow Hedging Instruments        
Derivative Instruments, Gain (Loss) [Line Items]        
Amount of Gain (Loss) Recognized in Statements of Income (Loss) (38) (11) (113) (11)
Hedged item | Derivatives Designated as Hedging Instruments | Fair Value Hedging Instruments        
Derivative Instruments, Gain (Loss) [Line Items]        
Amount of Gain (Loss) Recognized in Statements of Income (Loss) (726) (76) (1,875) 1,226
Interest rate contracts with customers | Derivatives Not Designated as Hedging Instruments        
Derivative Instruments, Gain (Loss) [Line Items]        
Amount of Gain (Loss) Recognized in Statements of Income (Loss) (23,536) (25) (35,353) 14,129
Mirror interest rate contracts with counterparties | Derivatives Not Designated as Hedging Instruments        
Derivative Instruments, Gain (Loss) [Line Items]        
Amount of Gain (Loss) Recognized in Statements of Income (Loss) 25,002 300 37,789 (13,118)
Risk participation agreements | Derivatives Not Designated as Hedging Instruments        
Derivative Instruments, Gain (Loss) [Line Items]        
Amount of Gain (Loss) Recognized in Statements of Income (Loss) 41 (4) (119) 37
Interest rate lock commitments | Derivatives Not Designated as Hedging Instruments        
Derivative Instruments, Gain (Loss) [Line Items]        
Amount of Gain (Loss) Recognized in Statements of Income (Loss) (1,030) 240 (531) 755
Forward sale commitments | Derivatives Not Designated as Hedging Instruments        
Derivative Instruments, Gain (Loss) [Line Items]        
Amount of Gain (Loss) Recognized in Statements of Income (Loss) $ 1,921 $ (26) $ 1,999 $ (752)