Operating Segment Information (Income by Reportable Segments) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Segment Reporting Information [Line Items]
Net sales	$ 229,265	$ 198,810
Operating income	37,193	17,475
Total Americas
Segment Reporting Information [Line Items]
Net sales	65,505	65,984
United States
Segment Reporting Information [Line Items]
Net sales	62,201	62,171
Other Americas
Segment Reporting Information [Line Items]
Net sales	3,304	3,813
Total APAC
Segment Reporting Information [Line Items]
Net sales	121,027	84,713
China
Segment Reporting Information [Line Items]
Net sales	87,647	51,533
Other APAC
Segment Reporting Information [Line Items]
Net sales	33,380	33,180
Total EMEA
Segment Reporting Information [Line Items]
Net sales	42,733	48,113
Germany
Segment Reporting Information [Line Items]
Net sales	15,573	20,512
Other EMEA
Segment Reporting Information [Line Items]
Net sales	27,160	27,601
Advanced Electronics Solutions
Segment Reporting Information [Line Items]
Net sales	131,892	111,274
Operating income	14,849	4,778
Advanced Electronics Solutions | Total Americas
Segment Reporting Information [Line Items]
Net sales	24,391	23,678
Advanced Electronics Solutions | United States
Segment Reporting Information [Line Items]
Net sales	23,797	22,625
Advanced Electronics Solutions | Other Americas
Segment Reporting Information [Line Items]
Net sales	594	1,053
Advanced Electronics Solutions | Total APAC
Segment Reporting Information [Line Items]
Net sales	81,795	52,612
Advanced Electronics Solutions | China
Segment Reporting Information [Line Items]
Net sales	58,423	32,933
Advanced Electronics Solutions | Other APAC
Segment Reporting Information [Line Items]
Net sales	23,372	19,679
Advanced Electronics Solutions | Total EMEA
Segment Reporting Information [Line Items]
Net sales	25,706	34,984
Advanced Electronics Solutions | Germany
Segment Reporting Information [Line Items]
Net sales	5,163	16,729
Advanced Electronics Solutions | Other EMEA
Segment Reporting Information [Line Items]
Net sales	20,543	18,255
Elastomeric Material Solutions
Segment Reporting Information [Line Items]
Net sales	91,849	83,526
Operating income	20,077	11,517
Elastomeric Material Solutions | Total Americas
Segment Reporting Information [Line Items]
Net sales	40,226	41,016
Elastomeric Material Solutions | United States
Segment Reporting Information [Line Items]
Net sales	37,732	38,567
Elastomeric Material Solutions | Other Americas
Segment Reporting Information [Line Items]
Net sales	2,494	2,449
Elastomeric Material Solutions | Total APAC
Segment Reporting Information [Line Items]
Net sales	37,119	31,328
Elastomeric Material Solutions | China
Segment Reporting Information [Line Items]
Net sales	27,831	18,375
Elastomeric Material Solutions | Other APAC
Segment Reporting Information [Line Items]
Net sales	9,288	12,953
Elastomeric Material Solutions | Total EMEA
Segment Reporting Information [Line Items]
Net sales	14,504	11,182
Elastomeric Material Solutions | Germany
Segment Reporting Information [Line Items]
Net sales	10,276	3,634
Elastomeric Material Solutions | Other EMEA
Segment Reporting Information [Line Items]
Net sales	4,228	7,548
Other
Segment Reporting Information [Line Items]
Net sales	5,524	4,010
Operating income	2,267	1,180
Other | Total Americas
Segment Reporting Information [Line Items]
Net sales	888	1,290
Other | United States
Segment Reporting Information [Line Items]
Net sales	672	979
Other | Other Americas
Segment Reporting Information [Line Items]
Net sales	216	311
Other | Total APAC
Segment Reporting Information [Line Items]
Net sales	2,113	773
Other | China
Segment Reporting Information [Line Items]
Net sales	1,393	225
Other | Other APAC
Segment Reporting Information [Line Items]
Net sales	720	548
Other | Total EMEA
Segment Reporting Information [Line Items]
Net sales	2,523	1,947
Other | Germany
Segment Reporting Information [Line Items]
Net sales	134	149
Other | Other EMEA
Segment Reporting Information [Line Items]
Net sales	2,389	1,798
Recognized over time
Segment Reporting Information [Line Items]
Net sales	62,713	52,878
Recognized over time | Advanced Electronics Solutions
Segment Reporting Information [Line Items]
Net sales	54,814	46,401
Recognized over time | Elastomeric Material Solutions
Segment Reporting Information [Line Items]
Net sales	2,687	2,827
Recognized over time | Other
Segment Reporting Information [Line Items]
Net sales	5,212	3,650
Recognized at a point in time
Segment Reporting Information [Line Items]
Net sales	166,552	145,932
Recognized at a point in time | Advanced Electronics Solutions
Segment Reporting Information [Line Items]
Net sales	77,078	64,873
Recognized at a point in time | Elastomeric Material Solutions
Segment Reporting Information [Line Items]
Net sales	89,162	80,699
Recognized at a point in time | Other
Segment Reporting Information [Line Items]
Net sales	$ 312	$ 360