INVESTMENT SECURITIES - Summary of Amortized Cost and Fair Value and Corresponding Amounts of Gross Unrealized Gains and Losses (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 972,138	$ 864,920
Gross Unrealized Gains	7,948	1,766
(Gross Unrealized Losses)	27,346	36,975
Allowance for Credit Losses	0	0
Fair Value	952,740	829,711
U.S. Treasury securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	15,016	20,043
Gross Unrealized Gains	0	0
(Gross Unrealized Losses)	805	1,980
Allowance for Credit Losses	0	0
Fair Value	14,211	18,063
U.S. government agencies
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	1,746	2,953
Gross Unrealized Gains	50	100
(Gross Unrealized Losses)	0	0
Allowance for Credit Losses	0	0
Fair Value	1,796	3,053
States and political subdivisions
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	218,832	220,418
Gross Unrealized Gains	288	10
(Gross Unrealized Losses)	16,972	20,400
Allowance for Credit Losses	0	0
Fair Value	202,148	200,028
GSE residential MBSs
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	234,016	155,793
Gross Unrealized Gains	3,228	52
(Gross Unrealized Losses)	3,141	4,297
Allowance for Credit Losses	0	0
Fair Value	234,103	151,548
GSE commercial MBSs
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	6,081	8,570
Gross Unrealized Gains	106	243
(Gross Unrealized Losses)	16	21
Allowance for Credit Losses	0	0
Fair Value	6,171	8,792
GSE residential CMOs
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	354,954	331,016
Gross Unrealized Gains	3,425	485
(Gross Unrealized Losses)	4,376	6,809
Allowance for Credit Losses	0	0
Fair Value	354,003	324,692
Non-agency CMOs
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	60,693	35,548
Gross Unrealized Gains	363	202
(Gross Unrealized Losses)	1,233	2,466
Allowance for Credit Losses	0	0
Fair Value	59,823	33,284
Asset-backed
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	78,610	88,450
Gross Unrealized Gains	443	655
(Gross Unrealized Losses)	803	1,002
Allowance for Credit Losses	0	0
Fair Value	78,250	88,103
Corporate debt
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	1,947	1,935
Gross Unrealized Gains	45	19
(Gross Unrealized Losses)	0	0
Allowance for Credit Losses	0	0
Fair Value	1,992	1,954
Other
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	243	194
Gross Unrealized Gains	0	0
(Gross Unrealized Losses)	0	0
Allowance for Credit Losses	0	0
Fair Value	$ 243	$ 194