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Segment Information about Reported Product Revenues, Depreciation and Amortization and Operating Income (Loss) (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018
Segment Reporting Information [Line Items] |  |  |  |
Product revenues | $ 240,056 | $ 261,504 | $ 741,303 | $ 792,490
Type of Revenue [Extensible List] | us-gaap:ProductMember | us-gaap:ProductMember | us-gaap:ProductMember | us-gaap:ProductMember
Depreciation and amortization | $ 11,064 | $ 12,898 | $ 33,281 | $ 38,721
Operating income (loss) | 20,329 | 15,713 | 62,231 | 51,955
Automotive Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Product revenues | 228,243 | 238,849 | 700,300 | 724,420
Industrial Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Product revenues | 11,813 | 22,655 | 41,003 | 68,070
Operating Segments | Automotive Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Product revenues | $ 228,243 | $ 238,849 | $ 700,300 | $ 724,420
Type of Revenue [Extensible List] | us-gaap:ProductMember | us-gaap:ProductMember | us-gaap:ProductMember | us-gaap:ProductMember
Depreciation and amortization | $ 10,170 | $ 11,060 | $ 30,660 | $ 32,839
Operating income (loss) | 36,629 | 37,908 | 114,456 | 116,312
Operating Segments | Industrial Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Product revenues | $ 11,813 | $ 22,655 | $ 41,003 | $ 68,070
Type of Revenue [Extensible List] | us-gaap:ProductMember | us-gaap:ProductMember | us-gaap:ProductMember | us-gaap:ProductMember
Depreciation and amortization | $ 480 | $ 1,170 | $ 1,319 | $ 3,822
Operating income (loss) | $ (3,496) | $ (4,335) | $ (12,131) | $ (18,896)
Reconciling Items |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Type of Revenue [Extensible List] | us-gaap:ProductMember | us-gaap:ProductMember | us-gaap:ProductMember | us-gaap:ProductMember
Depreciation and amortization | $ 414 | $ 668 | $ 1,302 | $ 2,060
Operating income (loss) | $ (12,804) | $ (17,860) | $ (40,094) | $ (45,461)

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