Business Combinations, Goodwill and Intangible Assets (Changes in Carrying Amount of Goodwill) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Goodwill [Roll Forward]
Beginning of Year	$ 20,536	$ 20,536	$ 18,865
Acquired Goodwill	0	0	1,671
Impairment	0	0	0
End of Year	$ 20,536	$ 20,536	$ 20,536