SECURITIES - Held-to-maturity (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Securities held-to-maturity:
Amortized Cost	$ 637,339	$ 594,639
Gross Unrecognized Gains	169	16
Gross Unrecognized Losses	(85,231)	(77,725)
Fair Value	552,277	516,930
Agency notes
Securities held-to-maturity:
Amortized Cost	89,977	89,563
Gross Unrecognized Losses	(10,961)	(11,300)
Fair Value	79,016	78,263
Corporate securities
Securities held-to-maturity:
Amortized Cost	13,000	9,000
Gross Unrecognized Gains	140
Gross Unrecognized Losses	(855)	(1,825)
Fair Value	12,285	7,175
Pass-through MBS issued by GSEs
Securities held-to-maturity:
Amortized Cost	298,697	279,853
Gross Unrecognized Losses	(43,716)	(37,579)
Fair Value	254,981	242,274
Agency CMOs
Securities held-to-maturity:
Amortized Cost	235,665	216,223
Gross Unrecognized Gains	29	16
Gross Unrecognized Losses	(29,699)	(27,021)
Fair Value	$ 205,995	$ 189,218