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Carrying Amounts and Fair Values of Certain Assets (Detail) - USD ($)
$ in Thousands
Jan. 01, 2017
Jan. 03, 2016
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Cash equivalents, carrying amount $ 7,017 $ 108,766
Restricted cash equivalents, carrying amount 69,113 128,554
Investments in marketable securities, carrying amount 7,260 6,054
Fair Value, Inputs, Level 1 [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Cash equivalents, fair value 7,017 108,766
Restricted cash equivalents, fair value 69,113 128,554
Investments in marketable securities, carrying amount $ 7,260 $ 6,054