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Capital Stock (Details)
Dec. 27, 2014
Dec. 28, 2013
Equity [Abstract]    
Common stock, shares authorized 400,000,000us-gaap_CommonStockSharesAuthorized 200,000,000us-gaap_CommonStockSharesAuthorized
Preferred stock, shares authorized 40,000us-gaap_PreferredStockSharesAuthorized 40,000us-gaap_PreferredStockSharesAuthorized