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Product Warranties (Changes In Product Warranty Liability) (Detail)
$ in Millions
6 Months Ended
Jul. 03, 2015
USD ($)
Product Warranty Liability [Line Items]  
Balance as of fiscal year end 2014 $ 20.6
Acquired warranties 0.1
Accruals for warranties issued 8.3
Changes in estimates 2.5
Warranty settlements (in cash or in kind) (12.4)
Balance as of the end of the second quarter of fiscal 2015 $ 19.1