XML 127 R121.htm IDEA: XBRL DOCUMENT
v3.24.3

Summary of Total Cost and Employer Contributions (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Oct. 05, 2024 | Oct. 07, 2023 | Oct. 05, 2024 | Oct. 07, 2023
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Defined contribution plan, plan name description |  |  | 401(k) Retirement Savings Plan |
401(k) Retirement Savings Plan |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Total cost and employer contributions | $ 7,603 | $ 7,083 | $ 25,720 | $ 24,152

X
- Definition Defined contribution plan plan name description. + References No definition available. + Details
Name: | flo_DefinedContributionPlanPlanNameDescription
Namespace Prefix: | flo_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_DefinedBenefitPlanDisclosureLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of cost for defined contribution plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 70 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480794/715-70-50-1 + Details
Name: | us-gaap_DefinedContributionPlanCostRecognized
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_RetirementPlanNameAxis=flo_FourZeroOneKRetirementSavingsPlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |