Acquisitions and Divestitures (Unaudited Pro Forma Operating Results) (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Business Combinations [Abstract]
Net Sales	$ 654,877	$ 651,252
Net Income	$ 43,559	$ 47,956
Earnings Per Share [Abstract]
Basic (in dollars per share)	$ 2.58	$ 2.86
Diluted (in dollars per share)	$ 2.53	$ 2.81