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Advertising Fund Assets - Additional Information (Detail) - USD ($)
$ in Thousands
Mar. 24, 2019
Dec. 30, 2018
Advertising Fund Assets Restricted $ 98,098 $ 112,744 [1]
Domestic Stores [Member] | Domestic Franchise [Member] | Cash and Investments [Member]    
Advertising Fund Assets Restricted 84,400 95,100
Domestic Stores [Member] | Domestic Franchise [Member] | Prepaid Expenses [Member]    
Advertising Fund Assets Restricted 1,600 2,300
Domestic Stores [Member] | Domestic Franchise [Member] | Accounts Receivable [Member]    
Advertising Fund Assets Restricted 12,100 15,300
Domestic Stores [Member] | Domestic Company Owned Stores [Member]    
Cash Contributed from Company Owned Store $ 5,100 $ 5,500
[1] The balance sheet at December 30, 2018 has been derived from the audited consolidated financial statements at that date but does not include all of the information and footnotes required by accounting principles generally accepted in the United States for complete financial statements.