Loans (Credit Quality Indicators - Commercial) (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Pass [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality indicator	$ 1,387,666	$ 1,205,381
Pass [Member] | Commercial & Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality indicator	559,019	592,749
Pass [Member] | Total Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality indicator	1,946,685	1,798,130
Special Mention [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality indicator	205	0
Special Mention [Member] | Commercial & Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality indicator	50,426	9,804
Special Mention [Member] | Total Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality indicator	50,631	9,804
Classified [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality indicator	4,537	5,114
Classified [Member] | Commercial & Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality indicator	11,259	9,781
Classified [Member] | Total Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality indicator	$ 15,796	$ 14,895