Loans (Performance of Loans that are Modified to Borrowers Experiencing Financial Difficulty) (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Financing Receivable, Modified [Line Items]
Loans (net of allowance for credit losses of $47,497 and $47,386, respectively)	$ 4,705,468	$ 4,610,480
Extended Maturity [Member] \| Current
Financing Receivable, Modified [Line Items]
Loans (net of allowance for credit losses of $47,497 and $47,386, respectively)	2,463
Extended Maturity [Member] \| 30-89 Days Past Due
Financing Receivable, Modified [Line Items]
Loans (net of allowance for credit losses of $47,497 and $47,386, respectively)	191
Extended Maturity [Member] \| 90+ Days Past Due
Financing Receivable, Modified [Line Items]
Loans (net of allowance for credit losses of $47,497 and $47,386, respectively)	153
Commercial Business [Member] \| Extended Maturity [Member] \| Current
Financing Receivable, Modified [Line Items]
Loans (net of allowance for credit losses of $47,497 and $47,386, 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 $47,497 and $47,386, 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 $47,497 and $47,386, respectively)	0
Commercial Mortgage [Member] \| Extended Maturity [Member] \| Current \| Construction [Member]
Financing Receivable, Modified [Line Items]
Loans (net of allowance for credit losses of $47,497 and $47,386, respectively)	0
Commercial Mortgage [Member] \| Extended Maturity [Member] \| Current \| Multifamily [Member]
Financing Receivable, Modified [Line Items]
Loans (net of allowance for credit losses of $47,497 and $47,386, 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 $47,497 and $47,386, 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 $47,497 and $47,386, 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 $47,497 and $47,386, 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 $47,497 and $47,386, 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 $47,497 and $47,386, 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 $47,497 and $47,386, 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 $47,497 and $47,386, 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 $47,497 and $47,386, 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 $47,497 and $47,386, 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 $47,497 and $47,386, respectively)	0
Residential Real Estate Loans [Member] \| Extended Maturity [Member] \| Current
Financing Receivable, Modified [Line Items]
Loans (net of allowance for credit losses of $47,497 and $47,386, respectively)	2,463
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 $47,497 and $47,386, respectively)	191
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 $47,497 and $47,386, respectively)	153
Residential Real Estate Lines [Member] \| Extended Maturity [Member] \| Current
Financing Receivable, Modified [Line Items]
Loans (net of allowance for credit losses of $47,497 and $47,386, 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 $47,497 and $47,386, 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 $47,497 and $47,386, respectively)	0
Consumer Indirect [Member] \| Extended Maturity [Member] \| Current
Financing Receivable, Modified [Line Items]
Loans (net of allowance for credit losses of $47,497 and $47,386, 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 $47,497 and $47,386, 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 $47,497 and $47,386, respectively)	0
Other Consumer [Member] \| Extended Maturity [Member] \| Current
Financing Receivable, Modified [Line Items]
Loans (net of allowance for credit losses of $47,497 and $47,386, 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 $47,497 and $47,386, 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 $47,497 and $47,386, respectively)	$ 0