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DERIVATIVES AND HEDGING (Narrative) (Details) - USD ($)
Sep. 30, 2023
Dec. 31, 2022
Sep. 30, 2022
Offsetting Assets and Liabilities [Line Items]      
Interest Rate Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months, Net $ 17,800,000    
AOCI, Cash Flow Hedge, Cumulative Gain (Loss), after Tax 15,200,000 $ 20,100,000  
Derivative net liability position 0    
Collateral posted 19,300,000 22,200,000  
Derivative Liability, Collateral Posted, Restricted Cash 18,300,000   $ 15,900,000
Interest rate swaps [Member]      
Offsetting Assets and Liabilities [Line Items]      
Variation Margin Adjustment, Derivative Liability $ 918,000 $ 8,700,000