Name:	rad_BusinessAcquisitionSharePriceInCash
Namespace Prefix:	rad_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

Represents the percentage of holders of the Company's outstanding common stock entitled to vote as of the record date.

No definition available.

Name:	rad_PercentageOfHoldersOfOutstandingCommonStock
Namespace Prefix:	rad_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Represents the percentage of shares that voted in favor of the merger.

No definition available.

Name:	rad_PercentageOfSharesVotedInFavorOfMerger
Namespace Prefix:	rad_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Represents the quorum percentage of outstanding shares of common stock as of the record date who voted at the special meeting.

No definition available.

Name:	rad_QuorumPercentageOfOutstandingSharesOfCommonStock
Namespace Prefix:	rad_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

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

Face amount or stated value per share of common stock.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.29)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 30
-Article 5

Name:	us-gaap_CommonStockParOrStatedValuePerShare
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

No definition available.