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v3.25.2

Schedule of Fair Value of Notes (Parenthetical) (Detail) | 6 Months Ended
--- | ---
Jul. 12, 2025
2035 Notes |
Fair Value Disclosures [Line Items] |
Senior notes due year | 2035
2055 Notes |
Fair Value Disclosures [Line Items] |
Senior notes due year | 2055
2031 Notes |
Fair Value Disclosures [Line Items] |
Senior notes due year | 2031
2026 Notes |
Fair Value Disclosures [Line Items] |
Senior notes due year | 2026

X
- Definition Debt instrument maturity date year. + References No definition available. + Details
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Namespace Prefix: | flo_
Data Type: | xbrli:gYearItemType
Balance Type: | na
Period Type: | duration

X
- Definition Fair value disclosures. + References No definition available. + Details
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Namespace Prefix: | flo_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |