FAIR VALUE DISCLOSURES AND REPORTING, THE FAIR VALUE OPTION AND FAIR VALUE MEASUREMENTS - Schedule of Reconciliation of Activity for Assets Measured at Fair Value based on Significant Unobservable (Non-market) Information (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Bank-Issued Trust Preferred Securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance, January 1	$ 30	$ 31
Paydowns	(1)	0
Balance at September 30	29	31
Municipal securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance, January 1	18,183	15,117
Maturities, calls and paydowns	(580)	(532)
Transfer from level 2 to level 3	8,384	6,085
Transfer from level 3 to level 2	(270)	0
Unrealized gain (loss) included in comprehensive income	373	(1,177)
Balance at September 30	$ 26,090	$ 19,493