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BENEFIT PLANS - Schedule of Collective Bargaining Agreement Dates and Contributions to Each Plant (Detail)
12 Months Ended
Feb. 28, 2015
Agreement
Minneapolis Food Distributing Industry Pension Plan  
Defined Benefit Plan Disclosure [Line Items]  
Total Collective Bargaining Agreements 1svu_NumberOfCollectiveBargainingAgreements
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= svu_MinneapolisFoodDistributingIndustryPensionPlanMember
Expiration Date Regarding Collective Bargaining Agreement May 31, 2015
Percentage of associates under collective bargaining agreement 100.00%us-gaap_MultiemployerPlansCollectiveBargainingArrangementPercentageOfEmployersParticipants
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= svu_MinneapolisFoodDistributingIndustryPensionPlanMember
Over 5% Contribution Yes
Central States, Southeast and Southwest Areas Pension Fund  
Defined Benefit Plan Disclosure [Line Items]  
Total Collective Bargaining Agreements 10svu_NumberOfCollectiveBargainingAgreements
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember
Expiration Date Regarding Collective Bargaining Agreement May 31, 2016
Percentage of associates under collective bargaining agreement 28.70%us-gaap_MultiemployerPlansCollectiveBargainingArrangementPercentageOfEmployersParticipants
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember
Over 5% Contribution No
Minneapolis Retail Meat Cutters and Food Handlers Pension Fund  
Defined Benefit Plan Disclosure [Line Items]  
Total Collective Bargaining Agreements 1svu_NumberOfCollectiveBargainingAgreements
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= svu_MinneapolisRetailMeatCuttersAndFoodHandlersPensionFundMember
Expiration Date Regarding Collective Bargaining Agreement Mar. 05, 2016
Percentage of associates under collective bargaining agreement 100.00%us-gaap_MultiemployerPlansCollectiveBargainingArrangementPercentageOfEmployersParticipants
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= svu_MinneapolisRetailMeatCuttersAndFoodHandlersPensionFundMember
Over 5% Contribution Yes
UFCW Unions and Participating Employers Pension Plan  
Defined Benefit Plan Disclosure [Line Items]  
Total Collective Bargaining Agreements 2svu_NumberOfCollectiveBargainingAgreements
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= svu_UfcwUnionsAndParticipatingEmployersPensionFundMember
Expiration Date Regarding Collective Bargaining Agreement Jul. 08, 2017
Percentage of associates under collective bargaining agreement 68.90%us-gaap_MultiemployerPlansCollectiveBargainingArrangementPercentageOfEmployersParticipants
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= svu_UfcwUnionsAndParticipatingEmployersPensionFundMember
Over 5% Contribution Yes
Western Conference of Teamsters Pension Plan  
Defined Benefit Plan Disclosure [Line Items]  
Total Collective Bargaining Agreements 8svu_NumberOfCollectiveBargainingAgreements
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= svu_WesternConferenceOfTeamstersPensionPlanMember
Expiration Date Regarding Collective Bargaining Agreement Jul. 15, 2017
Percentage of associates under collective bargaining agreement 50.20%us-gaap_MultiemployerPlansCollectiveBargainingArrangementPercentageOfEmployersParticipants
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= svu_WesternConferenceOfTeamstersPensionPlanMember
Over 5% Contribution No
UFCW Union Local 655 Food Employers Joint Pension Plan  
Defined Benefit Plan Disclosure [Line Items]  
Total Collective Bargaining Agreements 1svu_NumberOfCollectiveBargainingAgreements
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= svu_UfcwUnionLocalSixFiveFiveFoodEmployersJointPensionPlanMember
Expiration Date Regarding Collective Bargaining Agreement May 08, 2016
Percentage of associates under collective bargaining agreement 100.00%us-gaap_MultiemployerPlansCollectiveBargainingArrangementPercentageOfEmployersParticipants
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= svu_UfcwUnionLocalSixFiveFiveFoodEmployersJointPensionPlanMember
Over 5% Contribution Yes
UFCW Unions and Employers Pension Plan  
Defined Benefit Plan Disclosure [Line Items]  
Total Collective Bargaining Agreements 1svu_NumberOfCollectiveBargainingAgreements
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= svu_UfcwUnionsAndEmployersPensionPlanMember
Expiration Date Regarding Collective Bargaining Agreement Apr. 02, 2016
Percentage of associates under collective bargaining agreement 90.00%us-gaap_MultiemployerPlansCollectiveBargainingArrangementPercentageOfEmployersParticipants
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= svu_UfcwUnionsAndEmployersPensionPlanMember
Over 5% Contribution Yes