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The Company - Additional Information (Detail) $ in Thousands |  | 3 Months Ended | 6 Months Ended |
--- | --- | --- | --- | ---
Feb. 01, 2019 USD ($) | Jun. 30, 2019 USD ($) | Jun. 30, 2018 USD ($) | Jun. 30, 2019 USD ($) Facility | Jun. 30, 2018 USD ($) | Dec. 31, 2018 USD ($)
Nature Of Company [Line Items] |  |  |  |  |  |
Pre-tax gain on sale of business |  |  |  | $ 4,970 |  |
Restructuring expenses |  | $ 1,231 | $ 6,215 | 3,145 | $ 7,080 |
Restructuring liabilities |  | 649 |  | 649 |  | $ 2,547
Automotive Segments |  |  |  |  |  |
Nature Of Company [Line Items] |  |  |  |  |  |
Restructuring expenses |  |  |  | 1,543 |  |
Industrial Segments |  |  |  |  |  |
Nature Of Company [Line Items] |  |  |  |  |  |
Restructuring expenses |  |  |  | 1,602 |  |
One-Time Employee Termination Benefit Costs |  |  |  |  |  |
Nature Of Company [Line Items] |  |  |  |  |  |
Restructuring expenses |  |  |  | 1,510 |  |
Restructuring liabilities |  | 586 |  | 586 |  | 2,079
Contract Termination Costs |  |  |  |  |  |
Nature Of Company [Line Items] |  |  |  |  |  |
Restructuring liabilities |  | 57 |  | 57 |  | $ 389
Fit-for-Growth | One-Time Employee Termination Benefit Costs |  |  |  |  |  |
Nature Of Company [Line Items] |  |  |  |  |  |
Restructuring expenses |  | 860 | 1,057 | 1,259 | 1,737 |
Fit-for-Growth | Consultant Costs |  |  |  |  |  |
Nature Of Company [Line Items] |  |  |  |  |  |
Restructuring expenses |  | 349 | 37 | 349 | 1,499 |
Advanced Research and Development Rationalization and Site Consolidation |  |  |  |  |  |
Nature Of Company [Line Items] |  |  |  |  |  |
Restructuring expenses |  |  |  | 4,669 |  |
Advanced Research and Development Rationalization and Site Consolidation | One-Time Employee Termination Benefit Costs |  |  |  |  |  |
Nature Of Company [Line Items] |  |  |  |  |  |
Restructuring expenses |  |  | 881 |  | 881 |
Advanced Research and Development Rationalization and Site Consolidation | Loss on the Sale of Battery Management Systems |  |  |  |  |  |
Nature Of Company [Line Items] |  |  |  |  |  |
Restructuring expenses |  |  | 1,107 | $ 425 | 1,107 |
Advanced Research and Development Rationalization and Site Consolidation | Facility Closing |  |  |  |  |  |
Nature Of Company [Line Items] |  |  |  |  |  |
Number of leased facilities vacated | Facility |  |  |  | 2 |  |
Advanced Research and Development Rationalization and Site Consolidation | Contract Termination Costs |  |  |  |  |  |
Nature Of Company [Line Items] |  |  |  |  |  |
Restructuring expenses |  |  | 435 |  | 435 |
GPT and CSZ-IC |  |  |  |  |  |
Nature Of Company [Line Items] |  |  |  |  |  |
Restructuring expenses |  |  |  | $ 2,173 |  |
GPT and CSZ-IC | One-Time Employee Termination Benefit Costs |  |  |  |  |  |
Nature Of Company [Line Items] |  |  |  |  |  |
Restructuring expenses |  | 0 | $ 61 | 251 | $ 210 |
GPT and CSZ-IC | Consultant Costs |  |  |  |  |  |
Nature Of Company [Line Items] |  |  |  |  |  |
Restructuring expenses |  | $ 22 |  | 861 |  |
CSZ-IC |  |  |  |  |  |
Nature Of Company [Line Items] |  |  |  |  |  |
Total cash proceeds | $ 47,500 |  |  |  |  |
Escrow deposit | $ 2,500 |  |  |  |  |
Pre-tax gain on sale of business |  |  |  | $ 4,970 |  |

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