Assets Held for Sale - Additional Information (Detail) $ in Thousands	3 Months Ended	4 Months Ended	9 Months Ended
Jul. 11, 2020 USD ($) Bakery	Apr. 18, 2020 Bakery	Oct. 03, 2020 USD ($)	Oct. 05, 2019 USD ($)
Property Plant And Equipment [Abstract]
Number of closed bakeries reclassified as held for sale \| Bakery	3	2
Impairment charges assets held for sale \| $	$ 4,200		$ 21,310	$ 5,663

The aggregate amount of write-downs for impairments recognized during the period for long-lived assets held for abandonment, exchange or sale.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 45
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=109226348&loc=d3e2611-110228

Name:	us-gaap_ImpairmentOfLongLivedAssetsToBeDisposedOf
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration