ALLOWANCE FOR CREDIT LOSSES - Schedule of Loans Past Due (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Financing Receivable, Past Due [Line Items]
Portfolio Loans	$ 3,734,594	$ 3,879,560
Nonaccrual Loans	37,561	243,982
Current Loans
Financing Receivable, Past Due [Line Items]
Portfolio Loans	3,694,422	3,632,342
Total 30-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Portfolio Loans	2,611	3,236
30-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Portfolio Loans	2,549	2,260
Loans 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Portfolio Loans	62	976
Commercial Real Estate
Financing Receivable, Past Due [Line Items]
Portfolio Loans	2,143,362	2,114,314
Nonaccrual Loans	21,562	23,861
Commercial Real Estate \| Current Loans
Financing Receivable, Past Due [Line Items]
Portfolio Loans	2,121,800	2,090,450
Commercial Real Estate \| Total 30-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Portfolio Loans	0	3
Commercial Real Estate \| 30-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Portfolio Loans	0	3
Commercial Real Estate \| Loans 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Portfolio Loans	0	0
Commercial and Industrial
Financing Receivable, Past Due [Line Items]
Portfolio Loans	262,432	231,921
Nonaccrual Loans	13,546	1,013
Commercial and Industrial \| Current Loans
Financing Receivable, Past Due [Line Items]
Portfolio Loans	248,796	230,749
Commercial and Industrial \| Total 30-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Portfolio Loans	90	159
Commercial and Industrial \| 30-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Portfolio Loans	90	159
Commercial and Industrial \| Loans 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Portfolio Loans	0	0
Residential Mortgages
Financing Receivable, Past Due [Line Items]
Portfolio Loans	814,383	822,141
Nonaccrual Loans	1,945	4,623
Residential Mortgages \| Current Loans
Financing Receivable, Past Due [Line Items]
Portfolio Loans	810,101	815,619
Residential Mortgages \| Total 30-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Portfolio Loans	2,337	1,899
Residential Mortgages \| 30-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Portfolio Loans	2,337	1,899
Residential Mortgages \| Loans 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Portfolio Loans	0	0
Other Consumer
Financing Receivable, Past Due [Line Items]
Portfolio Loans	25,154	28,416
Nonaccrual Loans	72	25
Other Consumer \| Current Loans
Financing Receivable, Past Due [Line Items]
Portfolio Loans	24,934	28,124
Other Consumer \| Total 30-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Portfolio Loans	148	267
Other Consumer \| 30-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Portfolio Loans	86	159
Other Consumer \| Loans 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Portfolio Loans	62	108
Construction
Financing Receivable, Past Due [Line Items]
Portfolio Loans	489,263	465,613
Nonaccrual Loans	436	440
Construction \| Current Loans
Financing Receivable, Past Due [Line Items]
Portfolio Loans	488,791	464,265
Construction \| Total 30-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Portfolio Loans	36	908
Construction \| 30-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Portfolio Loans	36	40
Construction \| Loans 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Portfolio Loans	0	868
Other
Financing Receivable, Past Due [Line Items]
Portfolio Loans	0	217,155
Nonaccrual Loans	0	214,020
Other \| Current Loans
Financing Receivable, Past Due [Line Items]
Portfolio Loans	0	3,135
Other \| Total 30-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Portfolio Loans	0	0
Other \| 30-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Portfolio Loans	0	0
Other \| Loans 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Portfolio Loans	$ 0	$ 0