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Performance Contingent TSR Shares (Detail) (Total Shareholders Return, USD $) In Thousands, except Per Share data, unless otherwise specified	4 Months Ended
	Apr. 25, 2015	Apr. 25, 2014
Grant Date Fourth January Twenty Fifteen
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted	414us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod / us-gaap_AwardDateAxis = flo_GrantDateFourthJanuaryTwentyFifteenMember / us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis = flo_TotalShareholdersReturnMember
Vesting date	Mar. 01, 2017
Fair value per share	$ 21.21us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue / us-gaap_AwardDateAxis = flo_GrantDateFourthJanuaryTwentyFifteenMember / us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis = flo_TotalShareholdersReturnMember
Grant Date January First Twenty Fourteen
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted		366us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod / us-gaap_AwardDateAxis = flo_GrantDateFirstJanuaryTwentyFourteenMember / us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis = flo_TotalShareholdersReturnMember
Vesting date		Mar. 01, 2016
Fair value per share		$ 23.97us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue / us-gaap_AwardDateAxis = flo_GrantDateFirstJanuaryTwentyFourteenMember / us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis = flo_TotalShareholdersReturnMember

X

- Definition

Share Based Compensation Arrangement By Share Based Payment Award Vesting Date

+ References

No definition available.

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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

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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

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