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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 |  |  |  |  |

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