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Other Accrued Liabilities and Other Long-term Liabilities - Additional Information (Detail) $ in Millions | 4 Months Ended
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Apr. 22, 2023 USD ($)
Other Liabilities Disclosure [Abstract] |
Sellers owed additional taxes | $ 3.4

X
- Definition Business combination selling owed additional taxes. + References No definition available. + Details
Name: | flo_BusinessCombinationSellingOwedAdditionalTaxes
Namespace Prefix: | flo_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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