The amount above which the entity claims a right to recovery of defense and settlement costs from its insuror.

No definition available.

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Namespace Prefix:	rad_
Data Type:	xbrli:monetaryItemType
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- Definition

The number of states attorneys general declined to intervene in action.

+ References

No definition available.

+ Details

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Namespace Prefix:	rad_
Data Type:	xbrli:integerItemType
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- Definition

Amount awarded from other party in judgment or settlement of litigation.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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Period Type:	duration

- Definition

Amount awarded to other party in judgment or settlement of litigation.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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

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Data Type:	xbrli:stringItemType
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- Definition

Number of claims settled.

+ References

No definition available.

+ Details

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

- Definition

Reflects the estimated amount of loss from the specified contingency as of the balance sheet date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121557415&loc=d3e14435-108349

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 9
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121557415&loc=d3e14557-108349

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=124440162&loc=d3e12021-110248

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

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

+ References

+ Details

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

- Definition

The number of states the entity operates in as of the balance sheet date.

+ References

No definition available.

+ Details

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

- Definition

The amount of cash paid for the settlement of litigation or for other legal issues during the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 25
-Subparagraph (g)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3536-108585

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

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- Details

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Data Type:	na
Balance Type:
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- Details

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- Details

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- Details

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Data Type:	na
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- Details

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- Details

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Commitments, Contingencies and Guarantees (Details) $ in Thousands	1 Months Ended					12 Months Ended
	Aug. 31, 2021 USD ($)	Jul. 31, 2021 USD ($)	Jun. 30, 2021 USD ($) lawsuit	Apr. 30, 2019 USD ($)	Jan. 31, 2017 state	Dec. 31, 2020 lawsuit state	Oct. 01, 2021 USD ($)
EI (Elixir Insurance)
Commitments, Contingencies and Guarantees
Amount awarded to Elixir		$ 5,000
Amount awarded from Elixir		$ 15,400
California Employment Litigation [Member]
Commitments, Contingencies and Guarantees
Civil settlement amount	$ 8,000
Number of claims settled \| lawsuit			2
California Employment Litigation, Claims Related To Store Associates [Member]
Commitments, Contingencies and Guarantees
Potential settlement amount			$ 9,000
Number of claims settled \| lawsuit			1
California Employment Litigation, Claims Related To Distribution Center Associates [Member]
Commitments, Contingencies and Guarantees
Potential settlement amount			$ 1,750
California Employment Litigation, Claims Related to Uniforms
Commitments, Contingencies and Guarantees
Potential settlement amount							$ 12,000
Rx Savings Program False Claims Act Lawsuit [Member]
Commitments, Contingencies and Guarantees
The number of states attorneys general declined to intervene in action \| state					18
Blue Cross Blue Shield Litigation [Member]
Commitments, Contingencies and Guarantees
Number of claims \| lawsuit						2
Number of states in which operated \| state						8
Opioid Related Litigation [Member]
Commitments, Contingencies and Guarantees
Insurer retention				$ 3,000