Quarterly report pursuant to Section 13 or 15(d)

Advertising Costs (Details)

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Advertising Costs (Details) (USD $)
In Millions, unless otherwise specified
4 Months Ended
Apr. 19, 2015
Apr. 20, 2014
Other Income and Expenses [Abstract]    
Advertising and marketing costs $ 15.2us-gaap_SellingAndMarketingExpense $ 12.3us-gaap_SellingAndMarketingExpense
Selling related expenses $ 13.1us-gaap_SellingExpense $ 10.3us-gaap_SellingExpense