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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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