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Income Taxes (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jul. 02, 2011	Jun. 30, 2012	Jul. 02, 2011
Income Tax Disclosure [Abstract]
Effective tax rate	30.50%	28.60%	28.70%	30.00%
Unrecognized tax benefits	$ 7.1		$ 7.1

- 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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