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Loans (Performance of Loans that are Modified to Borrowers Experiencing Financial Difficulty) (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Financing Receivable, Modified [Line Items]
Loans (net of allowance for credit losses of $47,292 and $48,041, respectively)	$ 4,543,131	$ 4,431,163
Extended Maturity [Member] | Current
Financing Receivable, Modified [Line Items]
Loans (net of allowance for credit losses of $47,292 and $48,041, respectively)	1,358
Extended Maturity [Member] | 30-89 Days Past Due
Financing Receivable, Modified [Line Items]
Loans (net of allowance for credit losses of $47,292 and $48,041, respectively)	0
Extended Maturity [Member] | 90+ Days Past Due
Financing Receivable, Modified [Line Items]
Loans (net of allowance for credit losses of $47,292 and $48,041, respectively)	140
Commercial Business [Member] | Extended Maturity [Member] | Current
Financing Receivable, Modified [Line Items]
Loans (net of allowance for credit losses of $47,292 and $48,041, respectively)	0
Commercial Business [Member] | Extended Maturity [Member] | 30-89 Days Past Due
Financing Receivable, Modified [Line Items]
Loans (net of allowance for credit losses of $47,292 and $48,041, respectively)	0
Commercial Business [Member] | Extended Maturity [Member] | 90+ Days Past Due
Financing Receivable, Modified [Line Items]
Loans (net of allowance for credit losses of $47,292 and $48,041, respectively)	0
Commercial Mortgage [Member] | Extended Maturity [Member] | Current | Construction [Member]
Financing Receivable, Modified [Line Items]
Loans (net of allowance for credit losses of $47,292 and $48,041, respectively)	0
Commercial Mortgage [Member] | Extended Maturity [Member] | Current | Multifamily [Member]
Financing Receivable, Modified [Line Items]
Loans (net of allowance for credit losses of $47,292 and $48,041, respectively)	0
Commercial Mortgage [Member] | Extended Maturity [Member] | Current | Non-Owner Occupied [Member]
Financing Receivable, Modified [Line Items]
Loans (net of allowance for credit losses of $47,292 and $48,041, respectively)	0
Commercial Mortgage [Member] | Extended Maturity [Member] | Current | Owner Occupied [Member]
Financing Receivable, Modified [Line Items]
Loans (net of allowance for credit losses of $47,292 and $48,041, respectively)	0
Commercial Mortgage [Member] | Extended Maturity [Member] | 30-89 Days Past Due | Construction [Member]
Financing Receivable, Modified [Line Items]
Loans (net of allowance for credit losses of $47,292 and $48,041, respectively)	0
Commercial Mortgage [Member] | Extended Maturity [Member] | 30-89 Days Past Due | Multifamily [Member]
Financing Receivable, Modified [Line Items]
Loans (net of allowance for credit losses of $47,292 and $48,041, respectively)	0
Commercial Mortgage [Member] | Extended Maturity [Member] | 30-89 Days Past Due | Non-Owner Occupied [Member]
Financing Receivable, Modified [Line Items]
Loans (net of allowance for credit losses of $47,292 and $48,041, respectively)	0
Commercial Mortgage [Member] | Extended Maturity [Member] | 30-89 Days Past Due | Owner Occupied [Member]
Financing Receivable, Modified [Line Items]
Loans (net of allowance for credit losses of $47,292 and $48,041, respectively)	0
Commercial Mortgage [Member] | Extended Maturity [Member] | 90+ Days Past Due | Construction [Member]
Financing Receivable, Modified [Line Items]
Loans (net of allowance for credit losses of $47,292 and $48,041, respectively)	0
Commercial Mortgage [Member] | Extended Maturity [Member] | 90+ Days Past Due | Multifamily [Member]
Financing Receivable, Modified [Line Items]
Loans (net of allowance for credit losses of $47,292 and $48,041, respectively)	0
Commercial Mortgage [Member] | Extended Maturity [Member] | 90+ Days Past Due | Non-Owner Occupied [Member]
Financing Receivable, Modified [Line Items]
Loans (net of allowance for credit losses of $47,292 and $48,041, respectively)	0
Commercial Mortgage [Member] | Extended Maturity [Member] | 90+ Days Past Due | Owner Occupied [Member]
Financing Receivable, Modified [Line Items]
Loans (net of allowance for credit losses of $47,292 and $48,041, respectively)	0
Residential Real Estate Loans [Member] | Extended Maturity [Member] | Current
Financing Receivable, Modified [Line Items]
Loans (net of allowance for credit losses of $47,292 and $48,041, respectively)	1,358
Residential Real Estate Loans [Member] | Extended Maturity [Member] | 30-89 Days Past Due
Financing Receivable, Modified [Line Items]
Loans (net of allowance for credit losses of $47,292 and $48,041, respectively)	0
Residential Real Estate Loans [Member] | Extended Maturity [Member] | 90+ Days Past Due
Financing Receivable, Modified [Line Items]
Loans (net of allowance for credit losses of $47,292 and $48,041, respectively)	140
Residential Real Estate Lines [Member] | Extended Maturity [Member] | Current
Financing Receivable, Modified [Line Items]
Loans (net of allowance for credit losses of $47,292 and $48,041, respectively)	0
Residential Real Estate Lines [Member] | Extended Maturity [Member] | 30-89 Days Past Due
Financing Receivable, Modified [Line Items]
Loans (net of allowance for credit losses of $47,292 and $48,041, respectively)	0
Residential Real Estate Lines [Member] | Extended Maturity [Member] | 90+ Days Past Due
Financing Receivable, Modified [Line Items]
Loans (net of allowance for credit losses of $47,292 and $48,041, respectively)	0
Consumer Indirect [Member] | Extended Maturity [Member] | Current
Financing Receivable, Modified [Line Items]
Loans (net of allowance for credit losses of $47,292 and $48,041, respectively)	0
Consumer Indirect [Member] | Extended Maturity [Member] | 30-89 Days Past Due
Financing Receivable, Modified [Line Items]
Loans (net of allowance for credit losses of $47,292 and $48,041, respectively)	0
Consumer Indirect [Member] | Extended Maturity [Member] | 90+ Days Past Due
Financing Receivable, Modified [Line Items]
Loans (net of allowance for credit losses of $47,292 and $48,041, respectively)	0
Other Consumer [Member] | Extended Maturity [Member] | Current
Financing Receivable, Modified [Line Items]
Loans (net of allowance for credit losses of $47,292 and $48,041, respectively)	0
Other Consumer [Member] | Extended Maturity [Member] | 30-89 Days Past Due
Financing Receivable, Modified [Line Items]
Loans (net of allowance for credit losses of $47,292 and $48,041, respectively)	0
Other Consumer [Member] | Extended Maturity [Member] | 90+ Days Past Due
Financing Receivable, Modified [Line Items]
Loans (net of allowance for credit losses of $47,292 and $48,041, respectively)	$ 0

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