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Income Taxes - (Details Textual)	3 Months Ended
Income Taxes - (Details Textual)	Mar. 29, 2013	Mar. 30, 2012
Operating Loss Carryforwards [Line Items]
Effective tax rate (ETR)	33.20%	39.40%
Minimum
Operating Loss Carryforwards [Line Items]
Effective tax rate (ETR)	38.00%
Maximum
Operating Loss Carryforwards [Line Items]
Effective tax rate (ETR)	40.00%

- 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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