LOANS AND LEASES - Nonaccrual Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2026	Dec. 31, 2025
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Nonaccrual, With Allowance	$ 40,481	$ 38,076
Financing Receivable, Nonaccrual, No Allowance	59,729	63,732
Nonaccrual loans	100,210	101,808
Commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Nonaccrual, With Allowance	10,688	17,329
Financing Receivable, Nonaccrual, No Allowance	10,439	10,132
Nonaccrual loans	21,127	27,461
Lease financing
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Nonaccrual, With Allowance	699	4,770
Financing Receivable, Nonaccrual, No Allowance	760	890
Nonaccrual loans	1,459	5,660
Construction real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Nonaccrual, With Allowance	0	0
Financing Receivable, Nonaccrual, No Allowance	351	1,120
Nonaccrual loans	351	1,120
Commercial real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Nonaccrual, With Allowance	28,468	15,977
Financing Receivable, Nonaccrual, No Allowance	25,402	29,613
Nonaccrual loans	53,870	45,590
Residential real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Nonaccrual, With Allowance	626	0
Financing Receivable, Nonaccrual, No Allowance	17,732	18,302
Nonaccrual loans	18,358	18,302
Home equity
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Nonaccrual, With Allowance	0	0
Financing Receivable, Nonaccrual, No Allowance	4,093	2,927
Nonaccrual loans	4,093	2,927
Installment
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing Receivable, Nonaccrual, With Allowance	0	0
Financing Receivable, Nonaccrual, No Allowance	952	748
Nonaccrual loans	$ 952	$ 748