Loans (Collateral dependent individually analyzed loans) (Details) - USD ($) $ in Thousands		Dec. 31, 2022	Dec. 31, 2021
Total loans	[1]	$ 5,110,139	$ 4,272,925
Commercial Real Estate [Member]
Total loans	[2]	1,829,304	1,639,062
Commercial & Industrial [Member]
Total loans	[3]	656,397	641,555
Total Commercial [Member]
Total loans		2,485,701	2,280,617
Residential Real Estate [Member]
Total loans	[4]	2,323,002	1,726,975
Home Equity [Member]
Total loans		285,715	247,697
Other Consumer [Member]
Total loans	[5]	15,721	17,636
Total Consumer [Member]
Total loans		301,436	265,333
Collateral Dependent Individually Analyzed [Member]
Total loans		8,455	14,406
Related allowance on individually analyzed loans		0	534
Collateral Dependent Individually Analyzed [Member] | Commercial Real Estate [Member]
Total loans	[6]	2,103	10,603
Related allowance on individually analyzed loans	[6]	0	0
Collateral Dependent Individually Analyzed [Member] | Commercial & Industrial [Member]
Total loans	[7]	0	0
Related allowance on individually analyzed loans	[7]	0	0
Collateral Dependent Individually Analyzed [Member] | Total Commercial [Member]
Total loans		2,103	10,603
Related allowance on individually analyzed loans		0	0
Collateral Dependent Individually Analyzed [Member] | Residential Real Estate [Member]
Total loans	[8]	5,760	3,803
Related allowance on individually analyzed loans	[8]	0	534
Collateral Dependent Individually Analyzed [Member] | Home Equity [Member]
Total loans	[8]	592	0
Related allowance on individually analyzed loans	[8]	0	0
Collateral Dependent Individually Analyzed [Member] | Other Consumer [Member]
Total loans		0	0
Related allowance on individually analyzed loans		0	0
Collateral Dependent Individually Analyzed [Member] | Total Consumer [Member]
Total loans		592	0
Related allowance on individually analyzed loans		$ 0	$ 0

[1] Includes net unamortized loan origination costs of $11.6 million and $6.7 million, respectively, at December 31, 2022 and 2021 and net unamortized premiums on loans purchased from and serviced by other financial institutions of $318 thousand and $414 thousand, respectively, at December 31, 2022 and 2021.

[2] CRE consists of commercial mortgages primarily secured by 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. C&I also includes $1.1 million and $38.0 million, respectively, of PPP loans as of December 31, 2022 and 2021.

[4] Residential real estate consists of mortgage and homeowner construction loans secured by one- to four-family residential properties.

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

[6] Secured by income-producing property.

[7] Secured by business assets.

[8] Secured by one- to four-family residential properties.