Goodwill and Other Intangible Assets (Changes in Carrying Amount of Goodwill by Segment) (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2021 USD ($)
Goodwill [Roll Forward]
Goodwill, beginning balance	$ 270,172
Foreign currency translation adjustment	(2,980)
Goodwill, ending balance	267,192
Advanced Electronics Solutions
Goodwill [Roll Forward]
Goodwill, beginning balance	124,927
Foreign currency translation adjustment	(2,400)
Goodwill, ending balance	122,527
Elastomeric Material Solutions
Goodwill [Roll Forward]
Goodwill, beginning balance	143,021
Foreign currency translation adjustment	(580)
Goodwill, ending balance	142,441
Other
Goodwill [Roll Forward]
Goodwill, beginning balance	2,224
Foreign currency translation adjustment	0
Goodwill, ending balance	$ 2,224