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Segment Reporting - Additional Information (Detail) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 27, 2015 USD ($) | Jun. 28, 2014 USD ($) | Jun. 27, 2015 USD ($) Segment | Jun. 28, 2014 USD ($)
Segment Reporting Information [Line Items] |  |  |  |
Reportable operating segments | Segment |  |  | 2 |
Restructuring charges |  |  | $ 49.1 |
Operating segments | Seating |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Restructuring charges | $ 36.7 | $ 30.4 | 43.0 | $ 51.8
Operating segments | Electrical |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Restructuring charges | 5.1 | 3.8 | 6.0 | 4.8
Other |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Restructuring charges | $ 7.7 | $ 7.1 | $ 7.8 | $ 9.0

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