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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. 28, 2014
Jun. 29, 2013
Jun. 28, 2014
Jun. 29, 2013
Commitments And Contingencies Disclosure [Abstract]        
Beginning of period $ 16.7 $ 17.7 $ 17.0 $ 18.9
Additions 4.0 3.4 6.9 4.8
Usage (3.0) (3.2) (6.2) (5.8)
End of period $ 17.7 $ 17.9 $ 17.7 $ 17.9