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INVESTMENT SECURITIES - Unrealized Gain/Loss on Investment (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
AFS
Amortized cost	$ 1,113,979	$ 1,135,504
Gross unrealized gains	339	374
Gross unrealized losses	(107,591)	(115,919)
Fair value	1,006,727	1,019,959
Residential
AFS
Amortized cost	169,540	174,887
Gross unrealized gains	199	229
Gross unrealized losses	(5,487)	(7,654)
Fair value	164,252	167,462
Commercial
AFS
Amortized cost	54,431	54,620
Gross unrealized gains	0	0
Gross unrealized losses	(5,969)	(6,978)
Fair value	48,462	47,642
Residential collateralized mortgage obligations
AFS
Amortized cost	338,735	349,348
Gross unrealized gains	41	36
Gross unrealized losses	(26,944)	(31,940)
Fair value	311,832	317,444
Commercial collateralized mortgage obligations
AFS
Amortized cost	57,206	59,725
Gross unrealized gains	0	14
Gross unrealized losses	(4,051)	(4,794)
Fair value	53,155	54,945
Municipal bonds
AFS
Amortized cost	430,754	433,162
Gross unrealized gains	99	95
Gross unrealized losses	(56,862)	(54,998)
Fair value	373,991	378,259
HTM
Amortized cost	2,283	2,301
Gross unrealized gains	0	0
Gross unrealized losses	(17)	(28)
Fair value	2,266	2,273
Corporate debt securities
AFS
Amortized cost	31,129	31,136
Gross unrealized gains	0	0
Gross unrealized losses	(5,539)	(6,192)
Fair value	25,590	24,944
U.S. Treasury securities
AFS
Amortized cost	22,218	22,306
Gross unrealized gains	0	0
Gross unrealized losses	(1,901)	(2,319)
Fair value	20,317	19,987
Agency debentures
AFS
Amortized cost	9,966	10,320
Gross unrealized gains	0	0
Gross unrealized losses	(838)	(1,044)
Fair value	$ 9,128	$ 9,276

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Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on 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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