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DERIVATIVES AND HEDGING ACTIVITIES - Narrative (Details) - USD ($) | Sep. 30, 2023 | Dec. 31, 2022
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Derivative [Line Items] |  |
Liability for cash collateral received from counterparties | $ 15,200,000 | $ 12,800,000
Receivable for cash collateral paid to counterparties | 20,000.00 | 30,000.00
Notional amount of open interest rate swap agreements | 340,952,000 | 342,248,000
Interest rate swaps, back-to-back |  |
Derivative [Line Items] |  |
Notional amount of open interest rate swap agreements | $ 239,000,000 | $ 237,000,000

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