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Segment Reporting - Additional Information (Detail) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Segment Reporting Information [Line Items] |  |  |
Restructuring charges | $ 70.9 | $ 63.6 | $ 81.1
Operating segments | Seating |  |  |
Segment Reporting Information [Line Items] |  |  |
Restructuring charges | 45.7 | 40.6 | 60.8
Operating segments | E-Systems |  |  |
Segment Reporting Information [Line Items] |  |  |
Restructuring charges | 19.9 | 20.1 | 13.9
Other |  |  |
Segment Reporting Information [Line Items] |  |  |
Restructuring charges | $ 7.9 | $ 2.9 | $ 12.1

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