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DERIVATIVES AND HEDGING ACTIVITIES - Narrative (Details) - USD ($)
Sep. 30, 2023
Dec. 31, 2022
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