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Stock-Based Compensation - Additional Information (Detail) (Omnibus Plan)
0 Months Ended
May 21, 2014
May 21, 2014
Omnibus Plan
   
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Additional awards that will be issued under the EPIP 0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized
/ us-gaap_PlanNameAxis
= flo_OmnibusPlanMember
 
Awards granted, authorized amount 8,000,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
/ us-gaap_PlanNameAxis
= flo_OmnibusPlanMember
8,000,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
/ us-gaap_PlanNameAxis
= flo_OmnibusPlanMember