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Derivative Instruments and Hedging Activities - Interest rate Derivatives (Details) - USD ($) $ in Thousands | Mar. 31, 2026 | Dec. 31, 2025
--- | --- | ---
Designated as Hedging Instrument |  |
Derivatives, Fair Value [Line Items] |  |
Derivative Asset, Notional Amount | $ 320,500 | $ 456,350
Derivative Liability, Notional Amount | 112,644 | 173,964
Derivative Asset, Estimated Fair Value | 15,903 | 26,201
Derivative Liability, Estimated Fair Value | 435 | 1,144
Designated as Hedging Instrument | Fair Value Hedging |  |
Derivatives, Fair Value [Line Items] |  |
Derivative Asset, Notional Amount | 45,144 | 242,314
Derivatives not designated as hedging instruments |  |
Derivatives, Fair Value [Line Items] |  |
Derivative Asset, Notional Amount | 327,023 | 280,682
Derivative Liability, Notional Amount | 349,077 | 277,733
Derivative Asset, Estimated Fair Value | 7,745 | 8,700
Derivative Liability, Estimated Fair Value | 7,756 | 8,712
Interest Rate Swaps | Designated as Hedging Instrument | Fair Value Hedging |  |
Derivatives, Fair Value [Line Items] |  |
Derivative Asset, Notional Amount |  | 145,850
Derivative Liability, Notional Amount | 45,144 | 96,464
Derivative Asset, Estimated Fair Value |  | 10,968
Derivative Liability, Estimated Fair Value | 137 | 419
Interest Rate Swaps | Designated as Hedging Instrument | Cash Flow Hedging |  |
Derivatives, Fair Value [Line Items] |  |
Derivative Asset, Notional Amount | 195,500 | 185,500
Derivative Liability, Notional Amount | 67,500 | 77,500
Derivative Asset, Estimated Fair Value | 2,623 | 2,012
Derivative Liability, Estimated Fair Value | 298 | 725
Interest Rate Swaps | Derivatives not designated as hedging instruments |  |
Derivatives, Fair Value [Line Items] |  |
Derivative Asset, Notional Amount | 314,218 | 267,831
Derivative Liability, Notional Amount | 314,218 | 267,831
Derivative Asset, Estimated Fair Value | 7,745 | 8,699
Derivative Liability, Estimated Fair Value | 7,745 | 8,699
Interest Rate Caps | Designated as Hedging Instrument | Cash Flow Hedging |  |
Derivatives, Fair Value [Line Items] |  |
Derivative Asset, Notional Amount | 125,000 | 125,000
Derivative Asset, Estimated Fair Value | 13,280 | 13,221
Risk Participation Agreements | Derivatives not designated as hedging instruments |  |
Derivatives, Fair Value [Line Items] |  |
Derivative Asset, Notional Amount | 12,805 | 12,851
Derivative Liability, Notional Amount | 34,859 | 9,902
Derivative Asset, Estimated Fair Value |  | 1
Derivative Liability, Estimated Fair Value | $ 11 | $ 13

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