Loans - Major Classification of Loans Net of Unearned Income, Deferred Loan Origination Costs and Net Premiums on Acquired Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Loans [Abstract]
Net loans	$ 4,990,821	$ 4,894,942
Commercial [Member]
Loans [Abstract]
Net loans	2,540,085	2,493,275
Commercial [Member] \| Hotel/Motel [Member]
Loans [Abstract]
Net loans	507,243	497,764
Commercial [Member] \| Commercial Real Estate Residential [Member]
Loans [Abstract]
Net loans	596,948	580,652
Commercial [Member] \| Commercial Real Estate Nonresidential [Member]
Loans [Abstract]
Net loans	994,914	959,915
Commercial [Member] \| Dealer Floorplans [Member]
Loans [Abstract]
Net loans	76,888	83,812
Commercial [Member] \| Commercial Other [Member]
Loans [Abstract]
Net loans	364,092	371,132
Residential [Member]
Loans [Abstract]
Net loans	1,436,937	1,393,618
Residential [Member] \| Real Estate Mortgage [Member]
Loans [Abstract]
Net loans	1,245,759	1,206,820
Residential [Member] \| Home Equity Lines [Member]
Loans [Abstract]
Net loans	191,178	186,798
Consumer [Member]
Loans [Abstract]
Net loans	1,013,799	1,008,049
Consumer [Member] \| Consumer Direct [Member]
Loans [Abstract]
Net loans	139,819	145,591
Consumer [Member] \| Consumer Indirect [Member]
Loans [Abstract]
Net loans	$ 873,980	$ 862,458