Effect of Derivative Instruments Designated as Hedging Instruments on Consolidated Statements of Operations (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 28, 2012	Dec. 30, 2011	Dec. 31, 2010
Cash Flow Hedging
Derivatives, Fair Value [Line Items]
(Loss) Gain recognized in Accumulated OCI, net (Effective Portion)			$ 1.8
Cash Flow Hedging | Cost Of Revenue
Derivatives, Fair Value [Line Items]
Gain (Loss) Reclassified from Accumulated OCI into Total Cost of Revenue (Effective Portion)			0.6
Net Investment Hedge
Derivatives, Fair Value [Line Items]
(Loss) Gain recognized in Accumulated OCI, net (Effective Portion)	(2.5)	1.9	6.5
Net Investment Hedge | Other Income Expense
Derivatives, Fair Value [Line Items]
(Loss) Recognized in Other Income (Expenses), net: Excluded from Effectiveness Testing Gain (Loss)	$ 0.3	$ (0.6)