LOANS AND CREDIT QUALITY (Loans and Leases) (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
LOANS AND LEASES
Loans	$ 5,289,096	$ 5,332,852
Commercial and Industrial | Other
LOANS AND LEASES
Loans	594,592	606,936
Real Estate | Construction
LOANS AND LEASES
Loans	213,191	145,211
Real Estate | Residential mortgage
LOANS AND LEASES
Loans	1,839,191	1,892,520
Real Estate | Home equity
LOANS AND LEASES
Loans	600,082	676,982
Real Estate | Commercial mortgage
LOANS AND LEASES
Loans	1,594,433	1,500,680
Consumer | Consumer
LOANS AND LEASES
Loans	$ 447,607	$ 510,523