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Carrying Amounts and Fair Values of Certain Assets (Detail) - USD ($)
$ in Thousands
Mar. 22, 2020
Dec. 29, 2019
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Cash equivalents, carrying amount $ 173,317 $ 180,459
Restricted cash equivalents, carrying amount 106,225 126,963
Investments in marketable securities, carrying amount 10,989 11,982
Advertising fund cash equivalents, restricted, carrying amount 78,134 67,851
Fair Value, Inputs, Level 1 [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Cash equivalents, carrying amount 173,317 180,459
Restricted cash equivalents, carrying amount 106,225 126,963
Investments in marketable securities, carrying amount 10,989 11,982
Advertising fund cash equivalents, restricted, fair value $ 78,134 $ 67,851