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Exit And Disposal Activities (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Apr. 02, 2011
Exit And Disposal Activities [Abstract]
Restructuring costs incurred	$ 4.0	$ 3.0
Accrued restructuring costs	$ 3.7	$ 1.0

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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