SECURITIES - Additional Information (Details) - USD ($)	Sep. 30, 2024	Dec. 31, 2023
Investments, Debt and Equity Securities [Abstract]
Unrealized loss of held-to-maturity securities transferred from available-for sale	$ 19,500,000
Unrealized loss of held-to-maturity securities transferred from available-for sale, net of tax	15,400,000
Available-for-sale securities pledged as collateral	592,600,000	$ 792,000,000.0
Allowance for credit losses, available-for-sale securities	0	0
Allowance for credit losses, held-to-maturity securities	0	0
Accrued interest receivable on available-for-sale debt securities	$ 7,000,000.0	$ 7,600,000