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Restructuring And Asset Impairments (Restructuring And Asset Impairment Charges) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended
	Apr. 03, 2010	Dec. 31, 2011	Jan. 01, 2011	Jan. 02, 2010
Restructuring Cost and Reserve [Line Items]
Restructuring	$ (0.5)		$ (0.5)	$ 1.5
Intangible asset impairments				3.6
Restructuring, goodwill impairment and asset impairment charges (gains)		2.0	(0.5)	5.1
North American Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring			(0.5)	1.5
Intangible asset impairments				3.6
Restructuring, goodwill impairment and asset impairment charges (gains)		$ 1.4		$ 5.1

Amount charged against earnings in the period for incurred and estimated costs associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, excluding asset retirement obligations.

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