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INVESTMENTS - Narrative (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Dec. 31, 2024
Investments, Debt and Equity Securities [Abstract]          
Interest receivable $ 2,900,000   $ 2,900,000   $ 2,800,000
Debt securities, available-for-sale, realized loss 0 $ 300,000 200,000 $ 300,000  
Debt securities, available-for-sale, realized gain 300,000 $ 500,000 700,000 $ 900,000  
HTM, allowance $ 0   $ 0