Loans - Bank's Loan Portfolio Aging Analysis, Segregated by Loan Segment (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Loans [Abstract]
Loans and lease financing	$ 5,124,931	$ 4,894,942
30-59 Days Past Due [Member]
Loans [Abstract]
Loans and lease financing	13,002	12,004
60-89 Days Past Due [Member]
Loans [Abstract]
Loans and lease financing	8,478	9,036
90+ Days Past Due [Member]
Loans [Abstract]
Loans and lease financing	25,661	16,781
Total Past Due [Member]
Loans [Abstract]
Loans and lease financing	47,141	37,821
Current [Member]
Loans [Abstract]
Loans and lease financing	5,077,790	4,857,121
Commercial [Member]
Loans [Abstract]
Loans and lease financing	2,597,514	2,493,275
Commercial [Member] \| 30-59 Days Past Due [Member]
Loans [Abstract]
Loans and lease financing	4,918	3,056
Commercial [Member] \| 60-89 Days Past Due [Member]
Loans [Abstract]
Loans and lease financing	2,120	3,183
Commercial [Member] \| 90+ Days Past Due [Member]
Loans [Abstract]
Loans and lease financing	15,529	7,815
Commercial [Member] \| Total Past Due [Member]
Loans [Abstract]
Loans and lease financing	22,567	14,054
Commercial [Member] \| Current [Member]
Loans [Abstract]
Loans and lease financing	2,574,947	2,479,221
Commercial [Member] \| Hotel/Motel [Member]
Loans [Abstract]
Loans and lease financing	528,697	497,764
Commercial [Member] \| Hotel/Motel [Member] \| 30-59 Days Past Due [Member]
Loans [Abstract]
Loans and lease financing	0	0
Commercial [Member] \| Hotel/Motel [Member] \| 60-89 Days Past Due [Member]
Loans [Abstract]
Loans and lease financing	0	0
Commercial [Member] \| Hotel/Motel [Member] \| 90+ Days Past Due [Member]
Loans [Abstract]
Loans and lease financing	0	0
Commercial [Member] \| Hotel/Motel [Member] \| Total Past Due [Member]
Loans [Abstract]
Loans and lease financing	0	0
Commercial [Member] \| Hotel/Motel [Member] \| Current [Member]
Loans [Abstract]
Loans and lease financing	528,697	497,764
Commercial [Member] \| Commercial Real Estate Residential [Member]
Loans [Abstract]
Loans and lease financing	599,454	580,652
Commercial [Member] \| Commercial Real Estate Residential [Member] \| 30-59 Days Past Due [Member]
Loans [Abstract]
Loans and lease financing	990	216
Commercial [Member] \| Commercial Real Estate Residential [Member] \| 60-89 Days Past Due [Member]
Loans [Abstract]
Loans and lease financing	394	282
Commercial [Member] \| Commercial Real Estate Residential [Member] \| 90+ Days Past Due [Member]
Loans [Abstract]
Loans and lease financing	1,876	2,262
Commercial [Member] \| Commercial Real Estate Residential [Member] \| Total Past Due [Member]
Loans [Abstract]
Loans and lease financing	3,260	2,760
Commercial [Member] \| Commercial Real Estate Residential [Member] \| Current [Member]
Loans [Abstract]
Loans and lease financing	596,194	577,892
Commercial [Member] \| Commercial Real Estate Nonresidential [Member]
Loans [Abstract]
Loans and lease financing	1,005,462	959,915
Commercial [Member] \| Commercial Real Estate Nonresidential [Member] \| 30-59 Days Past Due [Member]
Loans [Abstract]
Loans and lease financing	2,966	2,010
Commercial [Member] \| Commercial Real Estate Nonresidential [Member] \| 60-89 Days Past Due [Member]
Loans [Abstract]
Loans and lease financing	1,148	2,814
Commercial [Member] \| Commercial Real Estate Nonresidential [Member] \| 90+ Days Past Due [Member]
Loans [Abstract]
Loans and lease financing	3,848	4,005
Commercial [Member] \| Commercial Real Estate Nonresidential [Member] \| Total Past Due [Member]
Loans [Abstract]
Loans and lease financing	7,962	8,829
Commercial [Member] \| Commercial Real Estate Nonresidential [Member] \| Current [Member]
Loans [Abstract]
Loans and lease financing	997,500	951,086
Commercial [Member] \| Dealer Floorplans [Member]
Loans [Abstract]
Loans and lease financing	79,821	83,812
Commercial [Member] \| Dealer Floorplans [Member] \| 30-59 Days Past Due [Member]
Loans [Abstract]
Loans and lease financing	0	0
Commercial [Member] \| Dealer Floorplans [Member] \| 60-89 Days Past Due [Member]
Loans [Abstract]
Loans and lease financing	0	0
Commercial [Member] \| Dealer Floorplans [Member] \| 90+ Days Past Due [Member]
Loans [Abstract]
Loans and lease financing	0	0
Commercial [Member] \| Dealer Floorplans [Member] \| Total Past Due [Member]
Loans [Abstract]
Loans and lease financing	0	0
Commercial [Member] \| Dealer Floorplans [Member] \| Current [Member]
Loans [Abstract]
Loans and lease financing	79,821	83,812
Commercial [Member] \| Commercial Other [Member]
Loans [Abstract]
Loans and lease financing	384,080	371,132
Commercial [Member] \| Commercial Other [Member] \| 30-59 Days Past Due [Member]
Loans [Abstract]
Loans and lease financing	962	830
Commercial [Member] \| Commercial Other [Member] \| 60-89 Days Past Due [Member]
Loans [Abstract]
Loans and lease financing	578	87
Commercial [Member] \| Commercial Other [Member] \| 90+ Days Past Due [Member]
Loans [Abstract]
Loans and lease financing	9,805	1,548
Commercial [Member] \| Commercial Other [Member] \| Total Past Due [Member]
Loans [Abstract]
Loans and lease financing	11,345	2,465
Commercial [Member] \| Commercial Other [Member] \| Current [Member]
Loans [Abstract]
Loans and lease financing	372,735	368,667
Residential [Member]
Loans [Abstract]
Loans and lease financing	1,484,427	1,393,618
Residential [Member] \| 30-59 Days Past Due [Member]
Loans [Abstract]
Loans and lease financing	3,526	3,978
Residential [Member] \| 60-89 Days Past Due [Member]
Loans [Abstract]
Loans and lease financing	4,932	4,514
Residential [Member] \| 90+ Days Past Due [Member]
Loans [Abstract]
Loans and lease financing	9,380	8,238
Residential [Member] \| Total Past Due [Member]
Loans [Abstract]
Loans and lease financing	17,838	16,730
Residential [Member] \| Current [Member]
Loans [Abstract]
Loans and lease financing	1,466,589	1,376,888
Residential [Member] \| Real Estate Mortgage [Member]
Loans [Abstract]
Loans and lease financing	1,289,157	1,206,820
Residential [Member] \| Real Estate Mortgage [Member] \| 30-59 Days Past Due [Member]
Loans [Abstract]
Loans and lease financing	1,683	2,543
Residential [Member] \| Real Estate Mortgage [Member] \| 60-89 Days Past Due [Member]
Loans [Abstract]
Loans and lease financing	4,072	4,063
Residential [Member] \| Real Estate Mortgage [Member] \| 90+ Days Past Due [Member]
Loans [Abstract]
Loans and lease financing	8,551	7,594
Residential [Member] \| Real Estate Mortgage [Member] \| Total Past Due [Member]
Loans [Abstract]
Loans and lease financing	14,306	14,200
Residential [Member] \| Real Estate Mortgage [Member] \| Current [Member]
Loans [Abstract]
Loans and lease financing	1,274,851	1,192,620
Residential [Member] \| Home Equity Lines [Member]
Loans [Abstract]
Loans and lease financing	195,270	186,798
Residential [Member] \| Home Equity Lines [Member] \| 30-59 Days Past Due [Member]
Loans [Abstract]
Loans and lease financing	1,843	1,435
Residential [Member] \| Home Equity Lines [Member] \| 60-89 Days Past Due [Member]
Loans [Abstract]
Loans and lease financing	860	451
Residential [Member] \| Home Equity Lines [Member] \| 90+ Days Past Due [Member]
Loans [Abstract]
Loans and lease financing	829	644
Residential [Member] \| Home Equity Lines [Member] \| Total Past Due [Member]
Loans [Abstract]
Loans and lease financing	3,532	2,530
Residential [Member] \| Home Equity Lines [Member] \| Current [Member]
Loans [Abstract]
Loans and lease financing	191,738	184,268
Consumer [Member]
Loans [Abstract]
Loans and lease financing	1,042,990	1,008,049
Consumer [Member] \| 30-59 Days Past Due [Member]
Loans [Abstract]
Loans and lease financing	4,558	4,970
Consumer [Member] \| 60-89 Days Past Due [Member]
Loans [Abstract]
Loans and lease financing	1,426	1,339
Consumer [Member] \| 90+ Days Past Due [Member]
Loans [Abstract]
Loans and lease financing	752	728
Consumer [Member] \| Total Past Due [Member]
Loans [Abstract]
Loans and lease financing	6,736	7,037
Consumer [Member] \| Current [Member]
Loans [Abstract]
Loans and lease financing	1,036,254	1,001,012
Consumer [Member] \| Consumer Direct [Member]
Loans [Abstract]
Loans and lease financing	139,865	145,591
Consumer [Member] \| Consumer Direct [Member] \| 30-59 Days Past Due [Member]
Loans [Abstract]
Loans and lease financing	550	1,203
Consumer [Member] \| Consumer Direct [Member] \| 60-89 Days Past Due [Member]
Loans [Abstract]
Loans and lease financing	207	377
Consumer [Member] \| Consumer Direct [Member] \| 90+ Days Past Due [Member]
Loans [Abstract]
Loans and lease financing	132	51
Consumer [Member] \| Consumer Direct [Member] \| Total Past Due [Member]
Loans [Abstract]
Loans and lease financing	889	1,631
Consumer [Member] \| Consumer Direct [Member] \| Current [Member]
Loans [Abstract]
Loans and lease financing	138,976	143,960
Consumer [Member] \| Consumer Indirect [Member]
Loans [Abstract]
Loans and lease financing	903,125	862,458
Consumer [Member] \| Consumer Indirect [Member] \| 30-59 Days Past Due [Member]
Loans [Abstract]
Loans and lease financing	4,008	3,767
Consumer [Member] \| Consumer Indirect [Member] \| 60-89 Days Past Due [Member]
Loans [Abstract]
Loans and lease financing	1,219	962
Consumer [Member] \| Consumer Indirect [Member] \| 90+ Days Past Due [Member]
Loans [Abstract]
Loans and lease financing	620	677
Consumer [Member] \| Consumer Indirect [Member] \| Total Past Due [Member]
Loans [Abstract]
Loans and lease financing	5,847	5,406
Consumer [Member] \| Consumer Indirect [Member] \| Current [Member]
Loans [Abstract]
Loans and lease financing	$ 897,278	$ 857,052