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Income Taxes (Details Textual) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Apr. 01, 2012	Apr. 03, 2011
Income Taxes (Textual) [Abstract]
Effective income tax rate	30.30%	35.00%
Decrease in unrecognized tax benefits	$ 6.4
Effective income tax rate reconciliation, tax credits	32.50%

- 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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