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LOANS AND ALLOWANCE FOR CREDIT LOSSES ON LOANS (Composition of Loan Portfolio) (Details) - USD ($) $ in Thousands | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and Leases Receivable, Net of Deferred Income | $ 4,121,040 | $ 4,098,094
Commercial Loans |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Gross loans | 2,100,347 | 2,076,207
Commercial real estate - non-owner-occupied |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Gross loans | 1,402,326 | 1,370,446
Commercial real estate - owner-occupied |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Gross loans | 300,626 | 301,860
Commercial |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Gross loans | 397,395 | 403,901
Retail Loans |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Gross loans | 2,020,693 | 2,021,887
Residential real estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Gross loans | 1,762,482 | 1,763,378
Home equity |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Gross loans | 240,674 | 240,341
Consumer |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Gross loans | $ 17,537 | $ 18,168

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