DERIVATIVES AND HEDGING ACTIVITIES - Summary of interest-rate swaps designated as cash flow hedges (Details) - Interest Rate Swap - Cash Flow Hedging - Designated as Hedging Instrument - USD ($)	6 Months Ended	12 Months Ended
	Jun. 30, 2024	Dec. 31, 2023
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amounts	$ 254,000,000.0	$ 259,000,000.0
Weighted average pay rates	2.95%	2.91%
Weighted average receive rates	5.46%	5.49%
Weighted average maturity (in years)	2 years 8 months 12 days	3 years 2 months 12 days
Unrealized gains, net	$ 10,324,000	$ 7,582,000
Other Assets
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Unrealized gains, net	10,397,000	9,047,000
Other Liabilities
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Unrealized gains, net	$ 73,000	$ 1,465,000