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Commitments and Contingencies - Summary of Product Warranty Accrual Activity (Detail) (USD $)
In Millions, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 29, 2013
Jun. 30, 2012
Jun. 29, 2013
Jun. 30, 2012
Commitments And Contingencies Disclosure [Abstract]        
Beginning of period $ 17.7 $ 18.5 $ 18.9 $ 18.6
Additions 3.4 2.3 4.8 5.1
Usage (3.2) (2.4) (5.8) (5.3)
End of period $ 17.9 $ 18.4 $ 17.9 $ 18.4