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Income Taxes (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jul. 02, 2011	Jul. 03, 2010	Jul. 02, 2011	Jul. 03, 2010	Jan. 01, 2011
Income Taxes
Effective tax rate	28.60%	31.90%	30.00%	31.80%
Unrecognized tax benefits	$ 5.5		$ 5.5		$ 5.5

- Definition

A ratio calculated by dividing the reported amount of income tax expense attributable to continuing operations for the period by GAAP-basis pretax income from continuing operations.

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