Commitments and Contingencies (Details)		6 Months Ended
Aug. 27, 2016 case StoreManager	Aug. 27, 2016 case StoreManager
WBA Merger
Commitments and contingencies
Number of lawsuits	10
Indergit
Commitments and contingencies
Number of current and former store managers court ordered notices to be sent \| StoreManager	7,000	7,000
Number of current and former store managers who joined the action \| StoreManager	1,550	1,550
Number of current and former store managers to whom notices have been sent \| StoreManager		1,750
Hall
Commitments and contingencies
Number of similar cases		2
DELAWARE \| WBA Merger
Commitments and contingencies
Number of lawsuits	8
PENNSYLVANIA \| WBA Merger
Commitments and contingencies
Number of lawsuits	1
DELAWARE AND PENNSYLVANIA \| WBA Merger
Commitments and contingencies
Number of lawsuits	9

Represents the number of current and former store managers court ordered notices to be sent.

No definition available.

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Namespace Prefix:	rad_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Represents the number of current and former store managers who have joined the legal action.

+ References

No definition available.

+ Details

Name:	rad_NumberOfCurrentAndFormerStoreManagersJoinedToAction
Namespace Prefix:	rad_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Represents the number of current and former store managers to whom notices have been sent relating to a class action lawsuit.

+ References

No definition available.

+ Details

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Namespace Prefix:	rad_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the number of similar cases in the court system that are pending a decision that may affect the outcome of a legal motion of the entity.

+ References

No definition available.

+ Details

Name:	rad_NumberOfSimilarCases
Namespace Prefix:	rad_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

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.

+ References

No definition available.

+ Details

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

- Definition

The total number of new claims filed pertaining to a loss contingency during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14435-108349

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Details

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Namespace Prefix:
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- Details

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Namespace Prefix:
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- Details

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Namespace Prefix:
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- Details

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Namespace Prefix:
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- Details

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Namespace Prefix:
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- Details

Name:	us-gaap_StatementGeographicalAxis=rad_DelawareAndPennsylvaniaMember
Namespace Prefix:
Data Type:	na
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