Fair Value Measurements - Schedule of Fair Value of Contingent Consideration Payable (Detail) (Cliffstar [Member], USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Aug. 17, 2010
Cliffstar [Member]
Business Acquisition [Line Items]
Contingent consideration liability, beginning balance		$ 32.2	$ 55.0
Acquisition date fair value
Payment		(34.3)
Accretion to fair value		1.2
Adjustments to fair value	0.6	0.9
Contingent consideration liability, ending balance	$ 0.6		$ 55.0