Goodwill and Intangible Assets (Changes in Carrying Amount of Goodwill by Segment) (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2016 USD ($)
Goodwill [Roll Forward]
December 31, 2015	$ 175,453
Foreign currency translation adjustment	3,423
March 31, 2016	178,876
Advanced Connectivity Solutions
Goodwill [Roll Forward]
December 31, 2015	51,931
Foreign currency translation adjustment	0
March 31, 2016	51,931
Elastomeric Material Solutions
Goodwill [Roll Forward]
December 31, 2015	56,269
Foreign currency translation adjustment	420
March 31, 2016	56,689
Power Electronics Solutions
Goodwill [Roll Forward]
December 31, 2015	65,029
Foreign currency translation adjustment	3,003
March 31, 2016	68,032
Other
Goodwill [Roll Forward]
December 31, 2015	2,224
Foreign currency translation adjustment	0
March 31, 2016	$ 2,224