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Summary of Significant Accounting Policies and Other Information - Revenue Disaggregation (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 29, 2018 | Sep. 30, 2017 | Sep. 29, 2018 | Sep. 30, 2017
Disaggregation of Revenue [Line Items] |  |  |  |
Net sales | $ 439,191 | $ 317,889 | $ 1,316,187 | $ 916,685
Electronics – Passive Products and Sensors |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net sales | 124,174 |  | 366,990 |
Electronics – Semiconductor |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net sales | 172,298 |  | 493,250 |
Passenger Car Products |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net sales | 57,761 |  | 184,922 |
Automotive Sensors |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net sales | 27,311 |  | 89,362 |
Commercial Vehicle Products |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net sales | 29,344 |  | 93,434 |
Industrial Products |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net sales | 28,303 |  | 88,229 |
Electronics Segment |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net sales | 296,472 | 175,899 | 860,240 | 499,052
Electronics Segment | Electronics – Passive Products and Sensors |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net sales | 124,174 |  | 366,990 |
Electronics Segment | Electronics – Semiconductor |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net sales | 172,298 |  | 493,250 |
Electronics Segment | Passenger Car Products |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net sales | 0 |  | 0 |
Electronics Segment | Automotive Sensors |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net sales | 0 |  | 0 |
Electronics Segment | Commercial Vehicle Products |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net sales | 0 |  | 0 |
Electronics Segment | Industrial Products |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net sales | 0 |  | 0 |
Automotive Segment |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net sales | 114,416 | 113,797 | 367,718 | 338,094
Automotive Segment | Electronics – Passive Products and Sensors |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net sales | 0 |  | 0 |
Automotive Segment | Electronics – Semiconductor |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net sales | 0 |  | 0 |
Automotive Segment | Passenger Car Products |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net sales | 57,761 |  | 184,922 |
Automotive Segment | Automotive Sensors |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net sales | 27,311 |  | 89,362 |
Automotive Segment | Commercial Vehicle Products |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net sales | 29,344 |  | 93,434 |
Automotive Segment | Industrial Products |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net sales | 0 |  | 0 |
Industrial Segment |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net sales | 28,303 | $ 28,193 | 88,229 | $ 79,539
Industrial Segment | Electronics – Passive Products and Sensors |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net sales | 0 |  | 0 |
Industrial Segment | Electronics – Semiconductor |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net sales | 0 |  | 0 |
Industrial Segment | Passenger Car Products |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net sales | 0 |  | 0 |
Industrial Segment | Automotive Sensors |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net sales | 0 |  | 0 |
Industrial Segment | Commercial Vehicle Products |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net sales | 0 |  | 0 |
Industrial Segment | Industrial Products |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net sales | $ 28,303 |  | $ 88,229 |

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