Goodwill and Intangible Assets (Changes in Carrying Amount of Goodwill by Segment) (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2016 USD ($)
Goodwill [Roll Forward]
December 31, 2015	$ 175,453
Foreign currency translation adjustment	1,614
June 30, 2016	177,067
Advanced Connectivity Solutions
Goodwill [Roll Forward]
December 31, 2015	51,931
Foreign currency translation adjustment	309
June 30, 2016	52,240
Elastomeric Material Solutions
Goodwill [Roll Forward]
December 31, 2015	56,269
Foreign currency translation adjustment	0
June 30, 2016	56,269
Power Electronics Solutions
Goodwill [Roll Forward]
December 31, 2015	65,029
Foreign currency translation adjustment	1,305
June 30, 2016	66,334
Other
Goodwill [Roll Forward]
December 31, 2015	2,224
Foreign currency translation adjustment	0
June 30, 2016	$ 2,224