Goodwill and Other Intangible Assets - Additional Information (Detail)	3 Months Ended	12 Months Ended
	Dec. 29, 2018 USD ($)	Dec. 28, 2019 USD ($) BusinessUnit TradeMarkAsset	Dec. 29, 2018 USD ($)	Dec. 30, 2017 USD ($) BusinessUnit TradeMarkAsset
Goodwill And Intangible Assets Disclosure [Line Items]
Goodwill impaired		$ 0	$ 0	$ 0
Additional indefinite lived intangible assets separately identified from goodwill	$ 206,600,000	127,100,000	206,600,000
Recognized intangible asset impairments	$ 1,500,000	$ 15,400,000		$ 66,247,000
Number of brands impaired | BusinessUnit		1		6
Finite-lived intangible asset, estimated useful life		33 years		30 years
Other Intangible Asset
Goodwill And Intangible Assets Disclosure [Line Items]
Recognized intangible asset impairments			$ 0
Indefinite-Lived Trademark Asset
Goodwill And Intangible Assets Disclosure [Line Items]
Number of indefinite-lived trademark assets compared by fair value of the brand and its carrying value | TradeMarkAsset		1		1
Finite-Lived Trademark Assets
Goodwill And Intangible Assets Disclosure [Line Items]
Number of finite-lived trademark assets tested using an undiscounted cash flow test | TradeMarkAsset		3		3
Canyon Bakehouse LLC
Goodwill And Intangible Assets Disclosure [Line Items]
Decrease in goodwill		$ 100,000