Loans (Summary of Loans) (Details) - USD ($) $ in Thousands		Dec. 31, 2024	Dec. 31, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	[1]	$ 5,137,838	$ 5,647,706
Net unamortized loan origination costs		10,900	13,000
Net unamortized premiums on purchased loans		242	286
Basis adjustment associated with fair value hedges		(1,481)	0
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	[2]	2,154,504	2,106,359
Commercial & industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	[3]	542,474	605,072
Total commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans		2,696,978	2,711,431
Residential real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	[4]	2,126,171	2,604,478
Home Equity
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans		297,119	312,594
Other Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	[5]	17,570	19,203
Total Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans		$ 314,689	$ 331,797

[1] Includes net unamortized loan origination costs of $10.9 million and $13.0 million, respectively, at December 31, 2024 and 2023 and net unamortized premiums on loans purchased from and serviced by other financial institutions of $242 thousand and $286 thousand, respectively, at December 31, 2024 and 2023.

[2] CRE consists of commercial mortgages primarily secured by non-owner occupied income-producing property, as well as construction and development loans. Construction and development loans are made to businesses for land development or the on-site construction of industrial, commercial, or residential buildings.

[3] C&I consists of loans to businesses and individuals, a portion of which are fully or partially collateralized by real estate.

[4] Residential real estate consists of mortgage and homeowner construction loans secured by one- to four-family residential properties. Also, includes a $1.5 million negative basis adjustment associated with fair value hedges at December 31, 2024. See Note 9 for additional disclosure.

[5] Other consists of loans to individuals secured by general aviation aircraft and other personal installment loans.