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Summary of Significant Accounting Policies and Other Information - Revenue Disaggregation (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 29, 2019 | Jun. 30, 2018 | Jun. 29, 2019 | Jun. 30, 2018
Disaggregation of Revenue [Line Items] |  |  |  |
Net sales | $ 397,879 | $ 459,183 | $ 803,379 | $ 876,996
Electronics – Passive Products and Sensors |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net sales | 108,481 | 128,321 | 216,858 | 242,816
Electronics – Semiconductor |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net sales | 151,072 | 171,036 | 308,089 | 320,952
Passenger Car Products |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net sales | 53,916 | 63,581 | 110,459 | 127,160
Automotive Sensors |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net sales | 24,682 | 30,729 | 50,739 | 62,052
Commercial Vehicle Products |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net sales | 30,052 | 32,862 | 60,935 | 64,090
Industrial Products |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net sales | 29,676 | 32,654 | 56,299 | 59,926
Electronics Segment |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net sales | 259,553 | 299,357 | 524,947 | 563,768
Electronics Segment | Electronics – Passive Products and Sensors |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net sales | 108,481 | 128,321 | 216,858 | 242,816
Electronics Segment | Electronics – Semiconductor |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net sales | 151,072 | 171,036 | 308,089 | 320,952
Electronics Segment | Passenger Car Products |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net sales | 0 | 0 | 0 | 0
Electronics Segment | Automotive Sensors |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net sales | 0 | 0 | 0 | 0
Electronics Segment | Commercial Vehicle Products |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net sales | 0 | 0 | 0 | 0
Electronics Segment | Industrial Products |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net sales | 0 | 0 | 0 | 0
Automotive Segment |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net sales | 108,650 | 127,172 | 222,133 | 253,302
Automotive Segment | Electronics – Passive Products and Sensors |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net sales | 0 | 0 | 0 | 0
Automotive Segment | Electronics – Semiconductor |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net sales | 0 | 0 | 0 | 0
Automotive Segment | Passenger Car Products |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net sales | 53,916 | 63,581 | 110,459 | 127,160
Automotive Segment | Automotive Sensors |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net sales | 24,682 | 30,729 | 50,739 | 62,052
Automotive Segment | Commercial Vehicle Products |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net sales | 30,052 | 32,862 | 60,935 | 64,090
Automotive Segment | Industrial Products |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net sales | 0 | 0 | 0 | 0
Industrial Segment |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net sales | 29,676 | 32,654 | 56,299 | 59,926
Industrial Segment | Electronics – Passive Products and Sensors |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net sales | 0 | 0 | 0 | 0
Industrial Segment | Electronics – Semiconductor |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net sales | 0 | 0 | 0 | 0
Industrial Segment | Passenger Car Products |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net sales | 0 | 0 | 0 | 0
Industrial Segment | Automotive Sensors |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net sales | 0 | 0 | 0 | 0
Industrial Segment | Commercial Vehicle Products |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net sales | 0 | 0 | 0 | 0
Industrial Segment | Industrial Products |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net sales | $ 29,676 | $ 32,654 | $ 56,299 | $ 59,926

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