Restructuring and Asset Impairments - Schedule of Restructuring and Asset Impairments (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended
	Dec. 31, 2011	Dec. 29, 2012	Dec. 31, 2011	Jan. 01, 2011
Restructuring Cost and Reserve [Line Items]
Asset impairments	$ 0.6		$ 0.6
Intangible asset impairments	1.4		1.4
Restructuring, goodwill impairment and asset impairment charges (gains)			2.0	(0.5)
North American Plan [Member]
Restructuring Cost and Reserve [Line Items]
Intangible asset impairments			1.4
Restructuring, goodwill impairment and asset impairment charges (gains)			1.4
Mexico Plan [Member]
Restructuring Cost and Reserve [Line Items]
Asset impairments			0.6
Restructuring, goodwill impairment and asset impairment charges (gains)			$ 0.6