Loans (Credit Quality Indicators - Commercial) (Details) $ in Thousands	Jun. 30, 2016 USD ($) rating	Dec. 31, 2015 USD ($) rating
Financing Receivable, Recorded Investment [Line Items]
Weighted Average Commercial Loan Portfolio Risk Rating | rating	4.69	4.68
Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	$ 1,693,367	$ 1,614,107
Pass [Member] | Commercial Mortgages [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	1,061,090	914,774
Pass [Member] | Commercial Construction & Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	81,812	122,297
Pass [Member] | Commercial & Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	550,465	577,036
Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	16,969	15,047
Special Mention [Member] | Commercial Mortgages [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	1,106	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	15,863	12,012
Classified [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	21,884	25,393
Classified [Member] | Commercial Mortgages [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable	12,551	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	$ 9,333	$ 11,249