SECURITIES - Additional Information (Details) - USD ($)	Mar. 31, 2024	Dec. 31, 2023
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