Operating Segment Information (Income by Reportable Segments) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Segment Reporting Information [Line Items]
Net sales	$ 238,263	$ 201,944	$ 702,434	$ 591,911
Operating income	33,799	8,794	106,737	47,361
Total Americas
Segment Reporting Information [Line Items]
Net sales	69,527	57,866	202,651	179,989
United States
Segment Reporting Information [Line Items]
Net sales	65,967	54,672	192,011	170,508
Other Americas
Segment Reporting Information [Line Items]
Net sales	3,560	3,194	10,640	9,481
Total APAC
Segment Reporting Information [Line Items]
Net sales	107,431	100,541	338,242	274,864
China
Segment Reporting Information [Line Items]
Net sales	83,001	72,640	248,942	190,056
Other APAC
Segment Reporting Information [Line Items]
Net sales	24,430	27,901	89,300	84,808
Total EMEA
Segment Reporting Information [Line Items]
Net sales	61,305	43,537	161,541	137,058
Germany
Segment Reporting Information [Line Items]
Net sales	30,687	19,596	74,017	63,358
Other EMEA
Segment Reporting Information [Line Items]
Net sales	30,618	23,941	87,524	73,700
Advanced Electronics Solutions
Segment Reporting Information [Line Items]
Net sales	134,991	111,641	407,309	339,075
Operating income	13,945	290	47,082	22,138
Advanced Electronics Solutions | Total Americas
Segment Reporting Information [Line Items]
Net sales	23,069	24,492	70,074	71,813
Advanced Electronics Solutions | United States
Segment Reporting Information [Line Items]
Net sales	22,119	23,959	67,740	69,469
Advanced Electronics Solutions | Other Americas
Segment Reporting Information [Line Items]
Net sales	950	533	2,334	2,344
Advanced Electronics Solutions | Total APAC
Segment Reporting Information [Line Items]
Net sales	64,761	54,091	221,829	164,842
Advanced Electronics Solutions | China
Segment Reporting Information [Line Items]
Net sales	47,153	37,870	155,417	115,503
Advanced Electronics Solutions | Other APAC
Segment Reporting Information [Line Items]
Net sales	17,608	16,221	66,412	49,339
Advanced Electronics Solutions | Total EMEA
Segment Reporting Information [Line Items]
Net sales	47,161	33,058	115,406	102,420
Advanced Electronics Solutions | Germany
Segment Reporting Information [Line Items]
Net sales	24,620	14,047	51,434	49,183
Advanced Electronics Solutions | Other EMEA
Segment Reporting Information [Line Items]
Net sales	22,541	19,011	63,972	53,237
Elastomeric Material Solutions
Segment Reporting Information [Line Items]
Net sales	97,951	86,444	279,131	241,596
Operating income	18,104	7,372	53,818	21,884
Elastomeric Material Solutions | Total Americas
Segment Reporting Information [Line Items]
Net sales	44,753	32,250	128,460	105,007
Elastomeric Material Solutions | United States
Segment Reporting Information [Line Items]
Net sales	42,338	29,733	120,736	98,373
Elastomeric Material Solutions | Other Americas
Segment Reporting Information [Line Items]
Net sales	2,415	2,517	7,724	6,634
Elastomeric Material Solutions | Total APAC
Segment Reporting Information [Line Items]
Net sales	40,966	45,166	110,922	106,488
Elastomeric Material Solutions | China
Segment Reporting Information [Line Items]
Net sales	34,789	34,016	90,047	72,550
Elastomeric Material Solutions | Other APAC
Segment Reporting Information [Line Items]
Net sales	6,177	11,150	20,875	33,938
Elastomeric Material Solutions | Total EMEA
Segment Reporting Information [Line Items]
Net sales	12,232	9,028	39,749	30,101
Elastomeric Material Solutions | Germany
Segment Reporting Information [Line Items]
Net sales	5,892	5,450	22,057	13,883
Elastomeric Material Solutions | Other EMEA
Segment Reporting Information [Line Items]
Net sales	6,340	3,578	17,692	16,218
Other
Segment Reporting Information [Line Items]
Net sales	5,321	3,859	15,994	11,240
Operating income	1,750	1,132	5,837	3,339
Other | Total Americas
Segment Reporting Information [Line Items]
Net sales	1,705	1,124	4,117	3,169
Other | United States
Segment Reporting Information [Line Items]
Net sales	1,510	980	3,535	2,666
Other | Other Americas
Segment Reporting Information [Line Items]
Net sales	195	144	582	503
Other | Total APAC
Segment Reporting Information [Line Items]
Net sales	1,704	1,284	5,491	3,534
Other | China
Segment Reporting Information [Line Items]
Net sales	1,059	754	3,478	2,003
Other | Other APAC
Segment Reporting Information [Line Items]
Net sales	645	530	2,013	1,531
Other | Total EMEA
Segment Reporting Information [Line Items]
Net sales	1,912	1,451	6,386	4,537
Other | Germany
Segment Reporting Information [Line Items]
Net sales	175	99	526	292
Other | Other EMEA
Segment Reporting Information [Line Items]
Net sales	1,737	1,352	5,860	4,245
Recognized over time
Segment Reporting Information [Line Items]
Net sales	73,718	54,226	202,198	157,908
Recognized over time | Advanced Electronics Solutions
Segment Reporting Information [Line Items]
Net sales	64,277	48,046	176,339	139,507
Recognized over time | Elastomeric Material Solutions
Segment Reporting Information [Line Items]
Net sales	4,612	2,612	11,057	8,106
Recognized over time | Other
Segment Reporting Information [Line Items]
Net sales	4,829	3,568	14,802	10,295
Recognized at a point in time
Segment Reporting Information [Line Items]
Net sales	164,545	147,718	500,236	434,003
Recognized at a point in time | Advanced Electronics Solutions
Segment Reporting Information [Line Items]
Net sales	70,714	63,595	230,970	199,568
Recognized at a point in time | Elastomeric Material Solutions
Segment Reporting Information [Line Items]
Net sales	93,339	83,832	268,074	233,490
Recognized at a point in time | Other
Segment Reporting Information [Line Items]
Net sales	$ 492	$ 291	$ 1,192	$ 945