v3.26.3
Derivative Instruments and Hedging Activities - Interest rate Derivatives (Details) - USD ($)
$ in Thousands
Sep. 30, 2026
Dec. 31, 2025
Derivative Instruments and Hedging Activities    
Cash collateral posted $ 0 $ 0
Collateral received 45,463 26,183
Designated as Hedging Instrument    
Derivative Instruments and Hedging Activities    
Derivative Asset, Notional Amount 559,491 456,350
Derivative Liability, Notional Amount   173,964
Derivative Asset, Estimated Fair Value 31,790 26,201
Derivative Liability, Estimated Fair Value   1,144
Designated as Hedging Instrument | Fair Value Hedging    
Derivative Instruments and Hedging Activities    
Derivative Asset, Notional Amount 116,491 242,314
Derivatives not designated as hedging instruments    
Derivative Instruments and Hedging Activities    
Derivative Asset, Notional Amount 382,759 280,682
Derivative Liability, Notional Amount 369,813 277,733
Derivative Asset, Estimated Fair Value 13,400 8,700
Derivative Liability, Estimated Fair Value 13,401 8,712
Interest Rate Swaps | Designated as Hedging Instrument | Fair Value Hedging    
Derivative Instruments and Hedging Activities    
Derivative Asset, Notional Amount 116,491 145,850
Derivative Liability, Notional Amount   96,464
Derivative Asset, Estimated Fair Value 4,358 10,968
Derivative Liability, Estimated Fair Value   419
Interest Rate Swaps | Designated as Hedging Instrument | Cash Flow Hedging    
Derivative Instruments and Hedging Activities    
Derivative Asset, Notional Amount 318,000 185,500
Derivative Liability, Notional Amount   77,500
Derivative Asset, Estimated Fair Value 11,308 2,012
Derivative Liability, Estimated Fair Value   725
Interest Rate Swaps | Derivatives not designated as hedging instruments    
Derivative Instruments and Hedging Activities    
Derivative Asset, Notional Amount 360,042 267,831
Derivative Liability, Notional Amount 360,042 267,831
Derivative Asset, Estimated Fair Value 13,400 8,699
Derivative Liability, Estimated Fair Value 13,400 8,699
Interest Rate Caps | Designated as Hedging Instrument | Cash Flow Hedging    
Derivative Instruments and Hedging Activities    
Derivative Asset, Notional Amount 125,000 125,000
Derivative Asset, Estimated Fair Value 16,124 13,221
Risk Participation Agreements | Derivatives not designated as hedging instruments    
Derivative Instruments and Hedging Activities    
Derivative Asset, Notional Amount 22,717 12,851
Derivative Liability, Notional Amount 9,771 9,902
Derivative Asset, Estimated Fair Value   1
Derivative Liability, Estimated Fair Value $ 1 $ 13