Loans (Credit Quality Indicators - Commercial) (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	$ 1,721,362	$ 1,614,107
Pass [Member] | Commercial Mortgages [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	1,074,473	914,774
Pass [Member] | Commercial Construction & Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	98,735	122,297
Pass [Member] | Commercial & Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	548,154	577,036
Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	16,564	15,047
Special Mention [Member] | Commercial Mortgages [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	1,099	3,035
Special Mention [Member] | Commercial Construction & Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	0	0
Special Mention [Member] | Commercial & Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	15,465	12,012
Classified [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	19,289	25,393
Classified [Member] | Commercial Mortgages [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	10,603	14,144
Classified [Member] | Commercial Construction & Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	0	0
Classified [Member] | Commercial & Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	$ 8,686	$ 11,249