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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 |

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