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Revenue (Revenue by Segment and Geographical Location) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018
Disaggregation of Revenue [Line Items] |  |  |  |
Total net sales | $ 203,386 | $ 208,853 | $ 643,924 | $ 655,385
North America [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total net sales | 115,816 | 119,475 | 358,476 | 364,789
South America [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total net sales | 16,542 | 18,864 | 50,488 | 59,742
Europe [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total net sales | 59,634 | 62,489 | 201,242 | 205,004
Asia Pacific [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total net sales | 11,394 | 8,025 | 33,718 | 25,850
Control Devices [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total net sales | 108,690 | 108,402 | 332,876 | 333,715
Control Devices [Member] | North America [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total net sales | 92,743 | 97,017 | 287,529 | 300,024
Control Devices [Member] | Europe [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total net sales | 6,046 | 4,174 | 15,914 | 10,734
Control Devices [Member] | Asia Pacific [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total net sales | 9,901 | 7,211 | 29,433 | 22,957
Electronics [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total net sales | 78,154 | 81,587 | 260,560 | 261,928
Electronics [Member] | North America [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total net sales | 23,073 | 22,458 | 70,947 | 64,765
Electronics [Member] | Europe [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total net sales | 53,588 | 58,315 | 185,328 | 194,270
Electronics [Member] | Asia Pacific [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total net sales | 1,493 | 814 | 4,285 | 2,893
PST [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total net sales | 16,542 | 18,864 | 50,488 | 59,742
PST [Member] | South America [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total net sales | $ 16,542 | $ 18,864 | $ 50,488 | $ 59,742

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