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Commitments and Contingencies - Summary of Product Warranty Accrual Activity (Detail) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Apr. 04, 2015
Mar. 29, 2014
Commitments and Contingencies Disclosure [Abstract]    
Beginning of year $ 17.3us-gaap_ProductWarrantyAccrual $ 17.0us-gaap_ProductWarrantyAccrual
Additions 3.7us-gaap_ProductWarrantyAccrualWarrantiesIssued 2.9us-gaap_ProductWarrantyAccrualWarrantiesIssued
Usage (3.9)us-gaap_ProductWarrantyAccrualPayments (3.2)us-gaap_ProductWarrantyAccrualPayments
End of period $ 17.1us-gaap_ProductWarrantyAccrual $ 16.7us-gaap_ProductWarrantyAccrual