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Carrying Amounts and Fair Values of Certain Assets (Detail) - USD ($)
$ in Thousands
Jan. 03, 2016
Dec. 28, 2014
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Cash equivalents, carrying amount $ 108,766 $ 16,290
Restricted cash equivalents, carrying amount 128,554 93,121
Investments in marketable securities, carrying amount 6,054 4,586
Fair Value, Inputs, Level 1 [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Cash equivalents, fair value 108,766 16,290
Restricted cash equivalents, fair value 128,554 93,121
Investments in marketable securities, carrying amount $ 6,054 $ 4,586