SECURITIES - Held-to-maturity Securities With Unrealized Losses (Details) - State and municipal securities - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Debt Securities, Available-for-sale [Line Items]
Less than 12 months, fair value	$ 0	$ 0
Less than 12 months, unrealized losses	0	0
12 months or more, fair value	102,629	111,029
12 Months or more, unrealized losses	26,865	17,213
Total fair value	102,629	111,029
Unrealized losses	$ 26,865	$ 17,213