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v3.25.3

DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGING ACTIVITIES - Additional information (Details) $ in Thousands | 9 Months Ended |  |
--- | --- | --- | ---
Sep. 30, 2025 USD ($) item | Dec. 31, 2024 USD ($) | Dec. 31, 2019 USD ($) item
Derivative [Line Items] |  |  |
Notional amount of interest rate swap | $ 1,152,292 | $ 925,402 |
Designated as hedging instrument | Cash flow hedges |  |  |
Derivative [Line Items] |  |  |
Notional amount of interest rate swap | $ 50,000 | 75,000 |
Designated as hedging instrument | Cash flow hedges | Interest rate swap on wholesale funding |  |  |
Derivative [Line Items] |  |  |
Number of instruments | item | 0 |  |
Notional amount of interest rate swap |  | 25,000 |
Designated as hedging instrument | Cash flow hedges | Interest rate swap on variable rate loans |  |  |
Derivative [Line Items] |  |  |
Variable rate loan assets | $ 50,000 |  |
Variable interest rate | 0.806% |  |
Investment, Variable Interest Rate, Type [Extensible Enumeration] | us-gaap:SecuredOvernightFinancingRateSofrOvernightIndexSwapRateMember |  |
Interest rate margin | 0.11% |  |
Notional amount of interest rate swap | $ 50,000 | 50,000 |
Designated as hedging instrument | Fair Value Hedging |  |  |
Derivative [Line Items] |  |  |
Notional amount of interest rate swap | 37,190 | 37,190 |
Designated as hedging instrument | Fair Value Hedging | Interest rate swap on deposits |  |  |
Derivative [Line Items] |  |  |
Number of instruments | item |  |  | 8
Notional amount of interest rate swap | $ 37,190 | $ 37,190 | $ 37,200
Fixed interest rate, weighted average |  |  | 1.696%

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