Schedule of Fair Value of Assets and Liabilities (Detail) (USD $) In Millions, unless otherwise specified	Dec. 28, 2014	Dec. 29, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities	$ 2.3
Fair Value Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	2.8	6.2
Liabilities	(5.5)	(1.9)
Foreign Currency Contracts Asset Net Of Liabilities Fair Value Disclosure, Total	(2.7)	4.3
Marketable securities	2.3	2.3
Investments, Fair Value Disclosure	2.3	2.3
Fair Value Measurements, Recurring | Fair Value, Quoted Prices In Active Markets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities	2.3	2.3
Investments, Fair Value Disclosure	2.3	2.3
Fair Value Measurements, Recurring | Fair Value, Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	2.8	6.2
Liabilities	(5.5)	(1.9)
Foreign Currency Contracts Asset Net Of Liabilities Fair Value Disclosure, Total	$ (2.7)	$ 4.3