Segment Reporting - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 28, 2014	Jun. 29, 2013	Jun. 28, 2014	Jun. 29, 2013
Segment Reporting Information [Line Items]
Reportable operating segments			2
Restructuring charges			$ 65.6
Operating Segments | Seating
Segment Reporting Information [Line Items]
Restructuring charges	30.4	3.7	51.8	18.9
Operating Segments | Electrical
Segment Reporting Information [Line Items]
Restructuring charges	3.8	6.5	4.8	7.2
Corporate and regional headquarters and elimination of intercompany activity ("Other")
Segment Reporting Information [Line Items]
Restructuring charges	$ 7.1	$ 4.0	$ 9.0	$ 5.1