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Summary of Significant Accounting Policies Unredeemed Gift Cards (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 28, 2013
Dec. 29, 2012
Dec. 31, 2011
Accounting Policies [Abstract]      
Gift Card Liability, Current $ 18.1 $ 18.7 $ 15.4
Revenue Recognition, Gift Cards, Breakage $ 0.8 $ 0.8 $ 0.6