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Segment Reporting - Additional Information (Detail) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2018 USD ($) reportable_operating_segment | Apr. 01, 2017 USD ($)
Segment Reporting Information [Line Items] |  |
Reportable operating segments | reportable_operating_segment | 2 |
Restructuring charges | $ 18.4 |
Operating segments | Seating |  |
Segment Reporting Information [Line Items] |  |
Restructuring charges | 14.4 | $ 6.7
Operating segments | E-Systems |  |
Segment Reporting Information [Line Items] |  |
Restructuring charges | 1.9 | 1.7
Other |  |
Segment Reporting Information [Line Items] |  |
Restructuring charges | $ 2.1 | $ 0.1

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- Definition Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 5.P.3) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140864-122747 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4(b)) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747 + Details
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