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Loans (Amortized Cost basis of Loans Modified to Borrowers Experiencing Financial Difficulty) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024	Dec. 31, 2024
Financing Receivable, Modified [Line Items]
Financing receivables, amortized cost basis	$ 4,488,711		$ 4,488,711		$ 4,431,163
Extended Maturity [Member]
Financing Receivable, Modified [Line Items]
Amortized cost basis	317	$ 295	686	$ 449
Commercial Business [Member] | Extended Maturity [Member]
Financing Receivable, Modified [Line Items]
Amortized cost basis	0	0	0	0
Commercial Mortgage [Member] | Extended Maturity [Member] | Construction [Member]
Financing Receivable, Modified [Line Items]
Amortized cost basis	0	0	0	0
Commercial Mortgage [Member] | Extended Maturity [Member] | Multifamily [Member]
Financing Receivable, Modified [Line Items]
Amortized cost basis	0	0	0	0
Commercial Mortgage [Member] | Extended Maturity [Member] | Non-Owner Occupied [Member]
Financing Receivable, Modified [Line Items]
Amortized cost basis	0	0	0	0
Commercial Mortgage [Member] | Extended Maturity [Member] | Owner Occupied [Member]
Financing Receivable, Modified [Line Items]
Amortized cost basis	0	0	0	0
Residential Real Estate Loans [Member] | Extended Maturity [Member]
Financing Receivable, Modified [Line Items]
Amortized cost basis	317	295	686	449
Residential Real Estate Lines [Member] | Extended Maturity [Member]
Financing Receivable, Modified [Line Items]
Amortized cost basis	0	0	0	0
Consumer Indirect [Member] | Extended Maturity [Member]
Financing Receivable, Modified [Line Items]
Amortized cost basis	0	0	0	0
Other Consumer [Member] | Extended Maturity [Member]
Financing Receivable, Modified [Line Items]
Amortized cost basis	$ 0	$ 0	$ 0	$ 0

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