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Revenue (Revenue by Segment and Geographical Location) (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2019 | Mar. 31, 2018
Disaggregation of Revenue [Line Items] |  |
Total net sales | $ 218,297 | $ 225,930
North America [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Total net sales | 119,367 | 124,429
South America [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Total net sales | 17,332 | 20,545
Europe [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Total net sales | 71,354 | 71,435
Asia Pacific [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Total net sales | 10,244 | 9,521
Control Devices [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Total net sales | 110,119 | 115,357
Control Devices [Member] | North America [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Total net sales | 96,720 | 104,443
Control Devices [Member] | Europe [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Total net sales | 4,412 | 2,891
Control Devices [Member] | Asia Pacific [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Total net sales | 8,987 | 8,023
Electronics [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Total net sales | 90,846 | 90,028
Electronics [Member] | North America [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Total net sales | 22,647 | 19,986
Electronics [Member] | Europe [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Total net sales | 66,942 | 68,544
Electronics [Member] | Asia Pacific [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Total net sales | 1,257 | 1,498
PST [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Total net sales | 17,332 | 20,545
PST [Member] | South America [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Total net sales | $ 17,332 | $ 20,545

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- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 32 -Paragraph 2A -URI http://asc.fasb.org/extlink&oid=82859839&loc=SL82860478-203043 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=82913847&loc=SL49130543-203045 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=82913847&loc=SL49130539-203045 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=82913847&loc=SL49130545-203045 + Details
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