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Other Accrued Liabilities and Other Long-term Liabilities - Additional Information (Detail) $ in Millions | Jul. 17, 2021 USD ($)
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Other Liabilities Disclosure [Abstract] |
Business combination, estimated cost owed to shareholders | $ 3.4

X
- Definition Business combination, estimated cost owed to shareholders. + References No definition available. + Details
Name: | flo_BusinessCombinationEstimatedCostOwedToShareholders
Namespace Prefix: | flo_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- References No definition available. + Details
Name: | us-gaap_OtherLiabilitiesDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration