DERIVATIVE FINANCIAL INSTRUMENTS - Narrative (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Cash pledged to secure obligations under derivative contracts | Not Designated as Hedging Instrument
Derivative Financial Instruments
Variable rate, commercial loans that are supported by the interest rate swap contracts	$ 1,160,000	$ 719,200
Cash pledged to secure obligations under derivative contracts | Cash Flow Hedging
Derivative Financial Instruments
Notional amount	500,000	500,000
Prime Loan Swap | Designated as Hedging Instrument
Derivative Financial Instruments
Notional amount	300,000
Prime Loan Swap | Cash Flow Hedging
Derivative Financial Instruments
Notional amount	300,000	300,000
SOFR Loan Swaps | Designated as Hedging Instrument
Derivative Financial Instruments
Notional amount	200,000
SOFR Loan Swaps | Cash Flow Hedging
Derivative Financial Instruments
Notional amount	$ 200,000	$ 200,000