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Franchise Rights Acquired, Goodwill and Other Intangible Assets - Additional Information (Detail) - USD ($)			3 Months Ended		9 Months Ended		12 Months Ended
	May 06, 2018	May 07, 2017	Sep. 29, 2018	Sep. 30, 2017	Sep. 29, 2018	Sep. 30, 2017	Dec. 30, 2017
Goodwill and Intangible Assets Disclosure
Percentage of goodwill hold by reporting units			97.20%		97.20%
Goodwill			$ 154,697,000		$ 154,697,000		$ 156,281,000
Franchise right maturity period					7 years
Finite-lived intangible assets, aggregate amortization expense			$ 7,213,000	$ 9,120,000	$ 21,453,000	$ 27,310,000
BRAZIL
Goodwill and Intangible Assets Disclosure
Goodwill impairment							$ 13,323,000
Reporting unit, percentage of fair value in excess of carrying amount			10.00%		10.00%
Goodwill			$ 4,806,000		$ 4,806,000
Minimum
Goodwill and Intangible Assets Disclosure
Reporting unit, percentage of fair value in excess of carrying amount			50.00%		50.00%
Maximum \| Franchise Rights
Goodwill and Intangible Assets Disclosure
Finite-lived intangible assets, estimated useful life (in years)					1 year
Franchise Rights
Goodwill and Intangible Assets Disclosure
Indefinite-lived intangible assets, impairment charges	$ 0	$ 0