PORTFOLIO LOANS - Schedule of Risk Grades by Portfolio Class (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Financing Receivable, Allowance for Credit Loss [Line Items]
Total portfolio loans	$ 7,697,087	$ 7,651,034
Pass
Financing Receivable, Allowance for Credit Loss [Line Items]
Total portfolio loans	6,764,070	6,736,067
Watch
Financing Receivable, Allowance for Credit Loss [Line Items]
Total portfolio loans	756,610	747,122
Special Mention
Financing Receivable, Allowance for Credit Loss [Line Items]
Total portfolio loans	92,296	96,057
Substandard
Financing Receivable, Allowance for Credit Loss [Line Items]
Total portfolio loans	62,023	64,347
Substandard Non-accrual
Financing Receivable, Allowance for Credit Loss [Line Items]
Total portfolio loans	22,088	7,441
Commercial loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Total portfolio loans	5,552,288	5,635,048
Commercial loans | Pass
Financing Receivable, Allowance for Credit Loss [Line Items]
Total portfolio loans	4,635,264	4,737,796
Commercial loans | Watch
Financing Receivable, Allowance for Credit Loss [Line Items]
Total portfolio loans	747,202	735,978
Commercial loans | Special Mention
Financing Receivable, Allowance for Credit Loss [Line Items]
Total portfolio loans	91,414	95,033
Commercial loans | Substandard
Financing Receivable, Allowance for Credit Loss [Line Items]
Total portfolio loans	59,480	62,552
Commercial loans | Substandard Non-accrual
Financing Receivable, Allowance for Credit Loss [Line Items]
Total portfolio loans	18,928	3,689
Commercial loans | C&I and other commercial
Financing Receivable, Allowance for Credit Loss [Line Items]
Total portfolio loans	1,904,515	1,835,994
Commercial loans | C&I and other commercial | Pass
Financing Receivable, Allowance for Credit Loss [Line Items]
Total portfolio loans	1,545,338	1,462,755
Commercial loans | C&I and other commercial | Watch
Financing Receivable, Allowance for Credit Loss [Line Items]
Total portfolio loans	281,424	296,416
Commercial loans | C&I and other commercial | Special Mention
Financing Receivable, Allowance for Credit Loss [Line Items]
Total portfolio loans	36,152	46,488
Commercial loans | C&I and other commercial | Substandard
Financing Receivable, Allowance for Credit Loss [Line Items]
Total portfolio loans	37,749	27,733
Commercial loans | C&I and other commercial | Substandard Non-accrual
Financing Receivable, Allowance for Credit Loss [Line Items]
Total portfolio loans	3,852	2,602
Commercial loans | CRE
Financing Receivable, Allowance for Credit Loss [Line Items]
Total portfolio loans	3,269,564	3,337,337
Commercial loans | CRE | Pass
Financing Receivable, Allowance for Credit Loss [Line Items]
Total portfolio loans	2,744,018	2,827,030
Commercial loans | CRE | Watch
Financing Receivable, Allowance for Credit Loss [Line Items]
Total portfolio loans	438,945	431,427
Commercial loans | CRE | Special Mention
Financing Receivable, Allowance for Credit Loss [Line Items]
Total portfolio loans	55,041	48,545
Commercial loans | CRE | Substandard
Financing Receivable, Allowance for Credit Loss [Line Items]
Total portfolio loans	16,507	29,492
Commercial loans | CRE | Substandard Non-accrual
Financing Receivable, Allowance for Credit Loss [Line Items]
Total portfolio loans	15,053	843
Commercial loans | Real estate construction
Financing Receivable, Allowance for Credit Loss [Line Items]
Total portfolio loans	378,209	461,717
Commercial loans | Real estate construction | Pass
Financing Receivable, Allowance for Credit Loss [Line Items]
Total portfolio loans	345,908	448,011
Commercial loans | Real estate construction | Watch
Financing Receivable, Allowance for Credit Loss [Line Items]
Total portfolio loans	26,833	8,135
Commercial loans | Real estate construction | Special Mention
Financing Receivable, Allowance for Credit Loss [Line Items]
Total portfolio loans	221	0
Commercial loans | Real estate construction | Substandard
Financing Receivable, Allowance for Credit Loss [Line Items]
Total portfolio loans	5,224	5,327
Commercial loans | Real estate construction | Substandard Non-accrual
Financing Receivable, Allowance for Credit Loss [Line Items]
Total portfolio loans	23	244
Retail loans:
Financing Receivable, Allowance for Credit Loss [Line Items]
Total portfolio loans	2,144,799	2,015,986
Retail loans: | Pass
Financing Receivable, Allowance for Credit Loss [Line Items]
Total portfolio loans	2,128,806	1,998,271
Retail loans: | Watch
Financing Receivable, Allowance for Credit Loss [Line Items]
Total portfolio loans	9,408	11,144
Retail loans: | Special Mention
Financing Receivable, Allowance for Credit Loss [Line Items]
Total portfolio loans	882	1,024
Retail loans: | Substandard
Financing Receivable, Allowance for Credit Loss [Line Items]
Total portfolio loans	2,543	1,795
Retail loans: | Substandard Non-accrual
Financing Receivable, Allowance for Credit Loss [Line Items]
Total portfolio loans	3,160	3,752
Retail loans: | CRE
Financing Receivable, Allowance for Credit Loss [Line Items]
Total portfolio loans	1,696,457	1,720,455
Retail loans: | CRE | Pass
Financing Receivable, Allowance for Credit Loss [Line Items]
Total portfolio loans	1,680,640	1,702,897
Retail loans: | CRE | Watch
Financing Receivable, Allowance for Credit Loss [Line Items]
Total portfolio loans	9,408	11,144
Retail loans: | CRE | Special Mention
Financing Receivable, Allowance for Credit Loss [Line Items]
Total portfolio loans	882	1,024
Retail loans: | CRE | Substandard
Financing Receivable, Allowance for Credit Loss [Line Items]
Total portfolio loans	2,543	1,795
Retail loans: | CRE | Substandard Non-accrual
Financing Receivable, Allowance for Credit Loss [Line Items]
Total portfolio loans	2,984	3,595
Retail loans: | Retail other
Financing Receivable, Allowance for Credit Loss [Line Items]
Total portfolio loans	448,342	295,531
Retail loans: | Retail other | Pass
Financing Receivable, Allowance for Credit Loss [Line Items]
Total portfolio loans	448,166	295,374
Retail loans: | Retail other | Watch
Financing Receivable, Allowance for Credit Loss [Line Items]
Total portfolio loans	0	0
Retail loans: | Retail other | Special Mention
Financing Receivable, Allowance for Credit Loss [Line Items]
Total portfolio loans	0	0
Retail loans: | Retail other | Substandard
Financing Receivable, Allowance for Credit Loss [Line Items]
Total portfolio loans	0	0
Retail loans: | Retail other | Substandard Non-accrual
Financing Receivable, Allowance for Credit Loss [Line Items]
Total portfolio loans	$ 176	$ 157