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Investments Japan JV (Details) (USD $)
In Thousands, unless otherwise specified
9 Months Ended 1 Months Ended 9 Months Ended
Sep. 28, 2014
Sep. 29, 2013
Aug. 31, 2013
Japan JV [Member]
Sep. 29, 2013
Japan JV [Member]
Jun. 30, 2013
Japan JV [Member]
stores
Mar. 31, 2013
Japan JV [Member]
Dec. 27, 2013
Guarantee of Indebtedness of Others [Member]
Japan JV [Member]
Schedule of Equity Method Investments [Line Items]              
Equity Method Investment, Ownership Percentage           49.00%  
Number of Restaurants         3    
Payments to Acquire Interest in Joint Venture     $ 1,000 $ 2,000      
Cash Acquired in Acquisition of Investment       188      
Contribution from noncontrolling interest 0 219 219        
Guarantor Obligations, Maximum Exposure, Undiscounted             $ 0