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SECURITIES - Additional Information (Details) - USD ($) | Mar. 31, 2024 | Dec. 31, 2023
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Investments, Debt and Equity Securities [Abstract] |  |
Unrealized loss of held-to-maturity securities transferred from available-for sale | $ 20,400,000 |
Unrealized loss of held-to-maturity securities transferred from available-for sale, net of tax | 16,100,000 |
Available-for-sale securities pledged as collateral | 642,000,000 | $ 792,000,000
Allowance for credit losses | 0 | 0
Allowance for Credit Losses | 0 | 0
Accrued interest receivable on available-for-sale debt securities | $ 7,000,000 | $ 7,600,000

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