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Summary of Significant Accounting Policies (Details) (USD $)
In Thousands, unless otherwise specified
Jun. 29, 2013
Dec. 29, 2012
Cash in escrow:    
Restricted cash $ 12,796 $ 9,911
Mortgage
    
Cash in escrow:    
Restricted cash 2,841 [1] 41 [1]
Insurance
    
Cash in escrow:    
Restricted cash 7,913 7,906
Other
    
Cash in escrow:    
Restricted cash $ 2,042 $ 1,964
[1] The increase in cash in escrow related to the mortgage is primarily comprised of restricted cash held as collateral under the mortgage agreement which was used to prepay mortgage indebtedness on the first business day of the third quarter of fiscal 2013. See "Note 7 - Mortgage" for further discussion.