Loans (Loan Maturities) (Details) $ in Thousands	Dec. 31, 2015 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan maturities, Within 1 Year	$ 103,815
Loan maturities, After 1 but within 5 Years	134,647
Loan maturities, After 5 Years	852,341
Loans due after one year with: Variable rates	138,002
Loans due after one year with: Fixed rates	848,986
Loans due after one year	986,988
Commercial Loan [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan maturities, Within 1 Year	39,542
Loan maturities, After 1 but within 5 Years	39,968
Loan maturities, After 5 Years	17,691
Commercial Real Estate Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan maturities, Within 1 Year	16,623
Loan maturities, After 1 but within 5 Years	56,690
Loan maturities, After 5 Years	467,536
Construction Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan maturities, Within 1 Year	35,419
Loan maturities, After 1 but within 5 Years	8,811
Loan maturities, After 5 Years	31,239
Residential Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan maturities, Within 1 Year	7,669
Loan maturities, After 1 but within 5 Years	15,344
Loan maturities, After 5 Years	323,350
Consumer Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan maturities, Within 1 Year	3,893
Loan maturities, After 1 but within 5 Years	12,522
Loan maturities, After 5 Years	2,836
Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan maturities, Within 1 Year	669
Loan maturities, After 1 but within 5 Years	1,312
Loan maturities, After 5 Years	$ 9,689