Fair Value (Fair Value Financial Assets Measured on Recurring Basis) (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available-for-sale	$ 310,262	$ 319,882
Interest rate swap derivatives	8,646
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available-for-sale	0	0
Interest rate swap derivatives	0	0
Total assets	0	0
Interest rate swap derivatives	0	0
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available-for-sale	310,262	319,882
Interest rate swap derivatives	8,646	4,828
Total assets	318,908	324,710
Interest rate swap derivatives	8,646	4,828
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available-for-sale	0	0
Interest rate swap derivatives	0	0
Total assets	0	0
Interest rate swap derivatives	$ 0	$ 0