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INVESTMENT SECURITIES - Narrative (Details) - USD ($)	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2024
Debt Securities, Available-for-sale [Line Items]
Debt securities, available-for-sale, unrealized loss position, allowance for credit loss	$ 0		$ 0
Collateral Pledged
Debt Securities, Available-for-sale [Line Items]
Investment securities pledged to secure public funds, fair value	704,100,000		$ 669,200,000
Equity Securities
Debt Securities, Available-for-sale [Line Items]
Gains (losses) on investments	$ 13,000	$ (5,000)

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Amount of restricted investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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