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DERIVATIVES AND HEDGING ACTIVITIES - Cash Flow Hedges Narrative (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2025 USD ($) DerivativeInstrument	Jun. 30, 2024 DerivativeInstrument	Jun. 30, 2025 USD ($) DerivativeInstrument	Jun. 30, 2024 DerivativeInstrument	Dec. 31, 2024 USD ($)
DERIVATIVES AND HEDGING ACTIVITIES
Interest rate cash flow hedge gain (loss) to be reclassified during next 12 months, net	$ 4,500,000		$ 4,500,000
Number of derivatives terminated | DerivativeInstrument	0	0	0	0
Collateral received against obligations in net asset position	$ 6,200,000		$ 6,200,000		$ 9,100,000
Designated as Hedging Instrument | Cash Flow Hedging
DERIVATIVES AND HEDGING ACTIVITIES
Clearing house related to the fair value derivatives	5,200,000		5,200,000		856,000
Loan level interest rate swaps with third party counterparties (assets)
DERIVATIVES AND HEDGING ACTIVITIES
Collateral already posted, aggregate fair value	1,400,000		1,400,000
Loan level interest rate swaps with third party counterparties (assets) | Designated as Hedging Instrument
DERIVATIVES AND HEDGING ACTIVITIES
Collateral already posted, aggregate fair value	$ 0		$ 0		$ 0

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