Loans (Credit Quality Indicators - Commercial) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Pass [Member] | Commercial Real Estate [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans by credit quality indicator	$ 1,546,139	$ 1,387,666
Pass [Member] | Commercial & Industrial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans by credit quality indicator	549,416	559,019
Pass [Member] | Total Commercial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans by credit quality indicator	2,095,555	1,946,685
Special Mention [Member] | Commercial Real Estate [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans by credit quality indicator	830	205
Special Mention [Member] | Commercial & Industrial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans by credit quality indicator	24,961	50,426
Special Mention [Member] | Total Commercial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans by credit quality indicator	25,791	50,631
Classified [Member] | Commercial Real Estate [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans by credit quality indicator	603	4,537
Classified [Member] | Commercial & Industrial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans by credit quality indicator	10,912	11,259
Classified [Member] | Total Commercial [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Loans by credit quality indicator	$ 11,515	$ 15,796