Revenue from Contracts with Customers Summary of Sales to External Customer by Operating Segment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disaggregation of Revenue [Line Items]
Net sales	$ 847,451	$ 770,657	$ 619,793
United States
Disaggregation of Revenue [Line Items]
Net sales	612,950	548,980	437,838
China
Disaggregation of Revenue [Line Items]
Net sales	52,845	55,277	52,251
Mexico
Disaggregation of Revenue [Line Items]
Net sales	32,677	39,498	40,937
Brazil
Disaggregation of Revenue [Line Items]
Net sales	36,361	35,558	35,610
Germany
Disaggregation of Revenue [Line Items]
Net sales	35,676	25,548	5,548
Switzerland
Disaggregation of Revenue [Line Items]
Net sales	18,413	11,506	5,450
Other
Disaggregation of Revenue [Line Items]
Net sales	58,529	54,290	42,159
Life Sciences
Disaggregation of Revenue [Line Items]
Net sales	359,732	248,173	98,329
Life Sciences | United States
Disaggregation of Revenue [Line Items]
Net sales	295,690		96,062
Life Sciences | China
Disaggregation of Revenue [Line Items]
Net sales	7,330		267
Life Sciences | Mexico
Disaggregation of Revenue [Line Items]
Net sales	373		78
Life Sciences | Brazil
Disaggregation of Revenue [Line Items]
Net sales	3		0
Life Sciences | Germany
Disaggregation of Revenue [Line Items]
Net sales	29,239		35
Life Sciences | Switzerland
Disaggregation of Revenue [Line Items]
Net sales	14,016		0
Life Sciences | Other
Disaggregation of Revenue [Line Items]
Net sales	13,081	8,731	1,887
Mobile Solutions
Disaggregation of Revenue [Line Items]
Net sales			336,852
Mobile Solutions | United States
Disaggregation of Revenue [Line Items]
Net sales			190,828
Mobile Solutions | China
Disaggregation of Revenue [Line Items]
Net sales			45,503
Mobile Solutions | Mexico
Disaggregation of Revenue [Line Items]
Net sales			26,639
Mobile Solutions | Brazil
Disaggregation of Revenue [Line Items]
Net sales			35,425
Mobile Solutions | Germany
Disaggregation of Revenue [Line Items]
Net sales			5,502
Mobile Solutions | Switzerland
Disaggregation of Revenue [Line Items]
Net sales			5,450
Mobile Solutions | Other
Disaggregation of Revenue [Line Items]
Net sales			27,505
Power Solutions
Disaggregation of Revenue [Line Items]
Net sales			186,602
Power Solutions | United States
Disaggregation of Revenue [Line Items]
Net sales			152,938
Power Solutions | China
Disaggregation of Revenue [Line Items]
Net sales			6,481
Power Solutions | Mexico
Disaggregation of Revenue [Line Items]
Net sales			14,220
Power Solutions | Brazil
Disaggregation of Revenue [Line Items]
Net sales			185
Power Solutions | Germany
Disaggregation of Revenue [Line Items]
Net sales			11
Power Solutions | Switzerland
Disaggregation of Revenue [Line Items]
Net sales			0
Power Solutions | Other
Disaggregation of Revenue [Line Items]
Net sales			12,767
Intersegment Eliminations
Disaggregation of Revenue [Line Items]
Net sales			(1,990)
Intersegment Eliminations | United States
Disaggregation of Revenue [Line Items]
Net sales			(1,990)
Intersegment Eliminations | China
Disaggregation of Revenue [Line Items]
Net sales			0
Intersegment Eliminations | Mexico
Disaggregation of Revenue [Line Items]
Net sales			0
Intersegment Eliminations | Brazil
Disaggregation of Revenue [Line Items]
Net sales			0
Intersegment Eliminations | Germany
Disaggregation of Revenue [Line Items]
Net sales			0
Intersegment Eliminations | Switzerland
Disaggregation of Revenue [Line Items]
Net sales			0
Intersegment Eliminations | Other
Disaggregation of Revenue [Line Items]
Net sales			0
Intersegment Eliminations | Intersegment Eliminations
Disaggregation of Revenue [Line Items]
Net sales	(2,130)	(2,331)
Intersegment Eliminations | Intersegment Eliminations | United States
Disaggregation of Revenue [Line Items]
Net sales	(2,130)	(2,331)
Intersegment Eliminations | Intersegment Eliminations | China
Disaggregation of Revenue [Line Items]
Net sales	0	0
Intersegment Eliminations | Intersegment Eliminations | Mexico
Disaggregation of Revenue [Line Items]
Net sales	0	0
Intersegment Eliminations | Intersegment Eliminations | Brazil
Disaggregation of Revenue [Line Items]
Net sales	0	0
Intersegment Eliminations | Intersegment Eliminations | Germany
Disaggregation of Revenue [Line Items]
Net sales	0	0
Intersegment Eliminations | Intersegment Eliminations | Switzerland
Disaggregation of Revenue [Line Items]
Net sales	0	0
Intersegment Eliminations | Intersegment Eliminations | Other
Disaggregation of Revenue [Line Items]
Net sales	0	0
Operating Segments | Life Sciences
Disaggregation of Revenue [Line Items]
Net sales	359,732	248,173	98,329
Operating Segments | Life Sciences | United States
Disaggregation of Revenue [Line Items]
Net sales		206,776
Operating Segments | Life Sciences | China
Disaggregation of Revenue [Line Items]
Net sales		6,130
Operating Segments | Life Sciences | Mexico
Disaggregation of Revenue [Line Items]
Net sales		191
Operating Segments | Life Sciences | Brazil
Disaggregation of Revenue [Line Items]
Net sales		29
Operating Segments | Life Sciences | Germany
Disaggregation of Revenue [Line Items]
Net sales		19,870
Operating Segments | Life Sciences | Switzerland
Disaggregation of Revenue [Line Items]
Net sales		6,446
Operating Segments | Mobile Solutions
Disaggregation of Revenue [Line Items]
Net sales	297,749	335,037	336,852
Operating Segments | Mobile Solutions | United States
Disaggregation of Revenue [Line Items]
Net sales	162,445	187,178
Operating Segments | Mobile Solutions | China
Disaggregation of Revenue [Line Items]
Net sales	38,793	43,610
Operating Segments | Mobile Solutions | Mexico
Disaggregation of Revenue [Line Items]
Net sales	18,815	27,053
Operating Segments | Mobile Solutions | Brazil
Disaggregation of Revenue [Line Items]
Net sales	36,058	35,314
Operating Segments | Mobile Solutions | Germany
Disaggregation of Revenue [Line Items]
Net sales	6,372	5,652
Operating Segments | Mobile Solutions | Switzerland
Disaggregation of Revenue [Line Items]
Net sales	4,340	5,006
Operating Segments | Mobile Solutions | Other
Disaggregation of Revenue [Line Items]
Net sales	30,926	31,224
Operating Segments | Power Solutions
Disaggregation of Revenue [Line Items]
Net sales	192,100	189,778	$ 186,602
Operating Segments | Power Solutions | United States
Disaggregation of Revenue [Line Items]
Net sales	156,945	157,357
Operating Segments | Power Solutions | China
Disaggregation of Revenue [Line Items]
Net sales	6,722	5,537
Operating Segments | Power Solutions | Mexico
Disaggregation of Revenue [Line Items]
Net sales	13,489	12,254
Operating Segments | Power Solutions | Brazil
Disaggregation of Revenue [Line Items]
Net sales	300	215
Operating Segments | Power Solutions | Germany
Disaggregation of Revenue [Line Items]
Net sales	65	26
Operating Segments | Power Solutions | Switzerland
Disaggregation of Revenue [Line Items]
Net sales	57	54
Operating Segments | Power Solutions | Other
Disaggregation of Revenue [Line Items]
Net sales	$ 14,522	$ 14,335