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Carrying Amounts and Fair Values of Certain Assets (Detail) (USD $)
In Thousands, unless otherwise specified
Mar. 23, 2014
Dec. 29, 2013
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Cash equivalents, carrying amount $ 27,437 $ 5,303
Restricted cash equivalents, carrying amount 93,739 93,608
Investments in marketable securities, carrying amount 3,739 3,269
Fair Value, Inputs, Level 1 [Member]
   
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Cash equivalents, fair value 27,437 5,303
Restricted cash equivalents, fair value 93,739 93,608
Investments in marketable securities, carrying amount $ 3,739 $ 3,269