Name:	rad_MultiemployerPlanPercentageContributionOverWhichContributed
Namespace Prefix:	rad_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Represents the minimum contribution(s) as a percentage of gross wages earned per associate, required for future periods relating to a multiemployer plan by collective bargaining arrangements, statutory obligations, or other contractual obligations.

No definition available.

Name:	rad_MultiemployerPlansMinimumContributionPercentage
Namespace Prefix:	rad_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Represents the minimum contribution(s) per hour worked per associate, required for future periods relating to a multiemployer plan by collective bargaining arrangements, statutory obligations, or other contractual obligations.

No definition available.

Name:	rad_MultiemployerPlansMinimumContributionRate
Namespace Prefix:	rad_
Data Type:	us-types:perUnitItemType
Balance Type:	na
Period Type:	duration

Represents the minimum contribution(s) per hour worked for non pharmacists associate, required for future periods relating to a multiemployer plan by collective bargaining arrangements, statutory obligations, or other contractual obligations.

No definition available.

Name:	rad_MultiemployerPlansMinimumContributionRateForNonPharmacists
Namespace Prefix:	rad_
Data Type:	us-types:perUnitItemType
Balance Type:	na
Period Type:	duration

Represents the minimum contribution(s) per hour worked for pharmacists associate, required for future periods relating to a multiemployer plan by collective bargaining arrangements, statutory obligations, or other contractual obligations.

No definition available.

Name:	rad_MultiemployerPlansMinimumContributionRateForPharmacists
Namespace Prefix:	rad_
Data Type:	us-types:perUnitItemType
Balance Type:	na
Period Type:	duration

Amount of contributions made to multiemployer plans by the employer. A multiemployer plan is a pension or postretirement benefit plan to which two or more unrelated employers contribute where assets contributed by one participating employer may be used to provide benefits to employees of other participating employers.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 80
-Section 50
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=49170332&loc=SL14450702-114947

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 80
-Section 50
-Paragraph 9
-URI http://asc.fasb.org/extlink&oid=49170332&loc=SL14450691-114947

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 80
-Section 50
-Paragraph 5
-Subparagraph (e)(1)
-URI http://asc.fasb.org/extlink&oid=49170332&loc=SL14450657-114947

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

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.

No definition available.

Name:	us-gaap_MultiemployerPlansLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Amount of the obligation recognized by withdrawing from a pension or postretirement benefit plan to which two or more unrelated employers contribute where assets contributed by one participating employer may be used to provide benefits to employees of other participating employers.

No definition available.

Name:	us-gaap_MultiemployerPlansWithdrawalObligation
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Name:	us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_MultiemployerPlanTypeAxis=rad_SEIUHealthCareEmployeesPensionFund1199Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_MultiemployerPlanTypeAxis=rad_SouthernCaliforniaUnitedFoodAndCommercialWorkersUnionsAndDrugEmployersPensionFundMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_MultiemployerPlanTypeAxis=rad_UFCWPharmacistsClerksAndDrugEmployersPensionTrustMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_MultiemployerPlanTypeAxis=rad_UnitedFoodAndCommercialWorkersUnionEmployerPensionFundMember
Namespace Prefix:
Data Type:	na
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Name:	us-gaap_MultiemployerPlanTypeAxis=rad_UnitedFoodAndCommercialWorkersUnionLocal880MercantileEmployersJointPensionFundMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_MultiemployerPlanTypeAxis=us-gaap_MultiemployerPlanIndividuallyInsignificantMultiemployerPlansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: