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Segment Reporting - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Mar. 29, 2014
Mar. 30, 2013
Segment Reporting Information [Line Items]    
Reportable operating segments 2  
Restructuring charges $ 24.3  
Operating Segments | Seating
   
Segment Reporting Information [Line Items]    
Restructuring charges 21.4 15.2
Operating Segments | Electrical
   
Segment Reporting Information [Line Items]    
Restructuring charges 1.0 0.7
Corporate and regional headquarters and elimination of intercompany activity ("Other")
   
Segment Reporting Information [Line Items]    
Restructuring charges $ 1.9 $ 1.1