Revenue Disclosures - Additional Information (Detail) - USD ($) $ in Thousands	Jun. 14, 2020	Dec. 29, 2019
Advertising fund assets restricted	$ 113,087	$ 105,389	[1]
U.S. stores [Member] | U.S. franchise stores [Member] | Cash, cash equivalents and investments [Member]
Advertising fund assets restricted	84,200	84,000
U.S. stores [Member] | U.S. franchise stores [Member] | Prepaid expenses [Member]
Advertising fund assets restricted	5,500	6,100
U.S. stores [Member] | U.S. franchise stores [Member] | Accounts receivable [Member]
Advertising fund assets restricted	23,400	15,300
U.S. stores [Member] | U.S. Company-owned stores [Member]
Cash contributed from Company-owned stores	$ 4,200	$ 3,500

[1] The balance sheet at December 29, 2019 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.