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Income Taxes Income Taxes (Details Textual 4) (USD $)
In Millions, unless otherwise specified
3 Months Ended 12 Months Ended
Mar. 31, 2013
Scenario, Forecast [Member]
Dec. 29, 2013
Scenario, Forecast [Member]
Dec. 30, 2012
Maximum [Member]
Reduction in Taxes [Member]
State Jurisdiction [Member]
Income Tax Contingency [Line Items]      
Potential favorable outcome of tax appeal     $ 1.0
Increase (decrease) in income tax expense due to change in enacted tax rate $ 2.9    
Percentage increase (decrease) in income tax expense due to change in enacted tax rate   1.20%