DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Schedule of Liabilities Subject to an Enforceable Master Netting Arrangement (Details) - USD ($)	Dec. 31, 2023	Dec. 31, 2022
Offsetting Liabilities [Line Items]
Net Amounts of Liabilities Presented in the Statement of Condition	$ (75,957,000)	$ (97,030,000)
Gross Amounts Not Offset in the Statements of Condition, Cash Collateral Received	0	0
Interest Rate Swap
Offsetting Liabilities [Line Items]
Gross Amounts of Recognized Liabilities	(81,073,000)	(103,866,000)
Gross Amounts Offset in the Statements of Condition	5,142,000	6,543,000
Net Amounts of Liabilities Presented in the Statement of Condition	(75,931,000)	(97,323,000)
Gross Amounts Not Offset in the Statements of Condition, Financial Instruments	9,633,000	11,973,000
Gross Amounts Not Offset in the Statements of Condition, Cash Collateral Received	0	0
Net Amount	(66,298,000)	(85,350,000)
Institutional counterparties | Interest Rate Swap
Offsetting Liabilities [Line Items]
Gross Amounts of Recognized Liabilities	(11,277,000)	(1,271,000)
Gross Amounts Offset in the Statements of Condition	5,142,000	36,000
Net Amounts of Liabilities Presented in the Statement of Condition	(6,135,000)	(1,235,000)
Gross Amounts Not Offset in the Statements of Condition, Financial Instruments	9,633,000	11,973,000
Gross Amounts Not Offset in the Statements of Condition, Cash Collateral Received	0	0
Net Amount	3,498,000	10,738,000
Commercial counterparties | Interest Rate Swap
Offsetting Liabilities [Line Items]
Gross Amounts of Recognized Liabilities	(69,796,000)	(102,595,000)
Gross Amounts Offset in the Statements of Condition	0	6,507,000
Net Amounts of Liabilities Presented in the Statement of Condition	(69,796,000)	(96,088,000)
Gross Amounts Not Offset in the Statements of Condition, Financial Instruments	0	0
Gross Amounts Not Offset in the Statements of Condition, Cash Collateral Received	0	0
Net Amount	$ (69,796,000)	$ (96,088,000)