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Summary of Changes in Carrying Amount of Goodwill (Detail) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Mar. 30, 2013
Dec. 31, 2012
Mar. 30, 2013
Seating
Goodwill [Line Items]      
Beginning balance $ 741.5 [1] $ 746.5 $ 746.5
Foreign currency translation     (5.0)
Ending balance $ 741.5 [1] $ 746.5 $ 741.5
[1] Unaudited.