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SECURITIES - Narrative (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2024
Sep. 30, 2023
Dec. 31, 2023
Debt and Equity Securities, FV-NI [Line Items]          
Transfer from securities held-to-maturity $ 0 $ 0 $ 0 $ 0  
Number of holdings of securities of any one issuer in an amount greater than 10% of stockholders equity 0   0   0
Threshold for disclosure percentage     10.00%   10.00%
Available for sale debt securities, unrealized loss position due to credit $ 0   $ 0    
Allowance for credit losses on available for sale debt securities 0   0    
Accrued interest receivable on securities     4,500   $ 5,300
Unrealized losses are related to credit losses 0   0    
Asset Pledged as Collateral [Member]          
Debt and Equity Securities, FV-NI [Line Items]          
Carrying amount of securities pledged $ 479,000   $ 479,000   $ 457,700