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Performance Contingent ROIC Shares (Detail) (Return On Invested Capital, USD $) In Thousands, except Per Share data, unless otherwise specified | 12 Months Ended
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Jan. 03, 2015
Grant Date January First Twenty Fourteen |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Shares granted | 366 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod / us-gaap_AwardDateAxis = flo_GrantDateFirstJanuaryTwentyFourteenMember / flo_RestrictedStockUnitsAxis = flo_ReturnOnInvestedCapitalMember
Assumed vesting date | Mar. 01, 2016
Fair value per share | $ 21.47 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue / us-gaap_AwardDateAxis = flo_GrantDateFirstJanuaryTwentyFourteenMember / flo_RestrictedStockUnitsAxis = flo_ReturnOnInvestedCapitalMember
Grant Date January First Twenty Thirteen |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Shares granted | 414 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod / us-gaap_AwardDateAxis = flo_GrantDateFirstJanuaryTwentyThirteenMember / flo_RestrictedStockUnitsAxis = flo_ReturnOnInvestedCapitalMember
Assumed vesting date | Mar. 01, 2015
Fair value per share | $ 15.51 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue / us-gaap_AwardDateAxis = flo_GrantDateFirstJanuaryTwentyThirteenMember / flo_RestrictedStockUnitsAxis = flo_ReturnOnInvestedCapitalMember

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- Definition Share Based Compensation Arrangement By Share Based Payment Award Vesting Date + References No definition available. + Details
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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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Period Type: | duration

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- Definition The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

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- Details
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- Details
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- Details
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Period Type: |