INVESTMENT SECURITIES - Amortized Cost and Estimated Fair Value of Securities Held-to-Maturity (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	$ 202,581	$ 164,677
Gross Unrealized Gains	444	80
Gross Unrealized Losses	(15,413)	(20,729)
Estimated Fair Value	187,612	144,028
State, county and municipal securities
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	33,483	33,623
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(5,132)	(6,214)
Estimated Fair Value	28,351	27,409
Mortgage-backed securities
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	169,098	131,054
Gross Unrealized Gains	444	80
Gross Unrealized Losses	(10,281)	(14,515)
Estimated Fair Value	$ 159,261	$ 116,619