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LOANS AND ALLOWANCE FOR CREDIT LOSSES ON LOANS (Loan Aging Analysis by Portfolio Segment) (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Financing Receivable, Past Due [Line Items]
Loans outstanding	$ 5,002,927	$ 4,115,259
Loans 90 Days Past Due and Accruing	0	0
Commercial real estate - non-owner-occupied
Financing Receivable, Past Due [Line Items]
Loans outstanding	1,771,804	1,387,252
Loans 90 Days Past Due and Accruing	0	0
Commercial real estate - owner-occupied
Financing Receivable, Past Due [Line Items]
Loans outstanding	401,944	324,712
Loans 90 Days Past Due and Accruing		0
Commercial
Financing Receivable, Past Due [Line Items]
Loans outstanding	479,461	382,785
Loans 90 Days Past Due and Accruing	0	0
Residential real estate
Financing Receivable, Past Due [Line Items]
Loans outstanding	2,017,675	1,752,249
Loans 90 Days Past Due and Accruing	0	0
Home equity
Financing Receivable, Past Due [Line Items]
Loans outstanding	313,951	253,251
Loans 90 Days Past Due and Accruing	0	0
Consumer
Financing Receivable, Past Due [Line Items]
Loans outstanding	18,092	15,010
Loans 90 Days Past Due and Accruing	0	0
Total Past Due
Financing Receivable, Past Due [Line Items]
Loans outstanding	13,988	5,855
Total Past Due | Commercial real estate - non-owner-occupied
Financing Receivable, Past Due [Line Items]
Loans outstanding	4,456	189
Total Past Due | Commercial real estate - owner-occupied
Financing Receivable, Past Due [Line Items]
Loans outstanding	561	1,060
Total Past Due | Commercial
Financing Receivable, Past Due [Line Items]
Loans outstanding	5,027	2,186
Total Past Due | Residential real estate
Financing Receivable, Past Due [Line Items]
Loans outstanding	2,822	1,640
Total Past Due | Home equity
Financing Receivable, Past Due [Line Items]
Loans outstanding	1,086	694
Total Past Due | Consumer
Financing Receivable, Past Due [Line Items]
Loans outstanding	36	86
30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans outstanding	7,453	1,333
30-59 Days Past Due | Commercial real estate - non-owner-occupied
Financing Receivable, Past Due [Line Items]
Loans outstanding	4,289	59
30-59 Days Past Due | Commercial real estate - owner-occupied
Financing Receivable, Past Due [Line Items]
Loans outstanding	561	85
30-59 Days Past Due | Commercial
Financing Receivable, Past Due [Line Items]
Loans outstanding	1,643	373
30-59 Days Past Due | Residential real estate
Financing Receivable, Past Due [Line Items]
Loans outstanding	654	333
30-59 Days Past Due | Home equity
Financing Receivable, Past Due [Line Items]
Loans outstanding	285	428
30-59 Days Past Due | Consumer
Financing Receivable, Past Due [Line Items]
Loans outstanding	21	55
60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans outstanding	1,737	1,297
60-89 Days Past Due | Commercial real estate - non-owner-occupied
Financing Receivable, Past Due [Line Items]
Loans outstanding	163	0
60-89 Days Past Due | Commercial real estate - owner-occupied
Financing Receivable, Past Due [Line Items]
Loans outstanding	0	545
60-89 Days Past Due | Commercial
Financing Receivable, Past Due [Line Items]
Loans outstanding	655	265
60-89 Days Past Due | Residential real estate
Financing Receivable, Past Due [Line Items]
Loans outstanding	534	333
60-89 Days Past Due | Home equity
Financing Receivable, Past Due [Line Items]
Loans outstanding	370	141
60-89 Days Past Due | Consumer
Financing Receivable, Past Due [Line Items]
Loans outstanding	15	13
90 Days or Greater Past Due
Financing Receivable, Past Due [Line Items]
Loans outstanding	4,798	3,225
90 Days or Greater Past Due | Commercial real estate - non-owner-occupied
Financing Receivable, Past Due [Line Items]
Loans outstanding	4	130
90 Days or Greater Past Due | Commercial real estate - owner-occupied
Financing Receivable, Past Due [Line Items]
Loans outstanding	0	430
90 Days or Greater Past Due | Commercial
Financing Receivable, Past Due [Line Items]
Loans outstanding	2,729	1,548
90 Days or Greater Past Due | Residential real estate
Financing Receivable, Past Due [Line Items]
Loans outstanding	1,634	974
90 Days or Greater Past Due | Home equity
Financing Receivable, Past Due [Line Items]
Loans outstanding	431	125
90 Days or Greater Past Due | Consumer
Financing Receivable, Past Due [Line Items]
Loans outstanding	0	18
Current
Financing Receivable, Past Due [Line Items]
Loans outstanding	4,988,939	4,109,404
Current | Commercial real estate - non-owner-occupied
Financing Receivable, Past Due [Line Items]
Loans outstanding	1,767,348	1,387,063
Current | Commercial real estate - owner-occupied
Financing Receivable, Past Due [Line Items]
Loans outstanding	401,383	323,652
Current | Commercial
Financing Receivable, Past Due [Line Items]
Loans outstanding	474,434	380,599
Current | Residential real estate
Financing Receivable, Past Due [Line Items]
Loans outstanding	2,014,853	1,750,609
Current | Home equity
Financing Receivable, Past Due [Line Items]
Loans outstanding	312,865	252,557
Current | Consumer
Financing Receivable, Past Due [Line Items]
Loans outstanding	$ 18,056	$ 14,924

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