Represents the fixed charge coverage ratio relating to the debt agreement.

No definition available.

Name:	rad_FixedChargeCoverageRatio
Namespace Prefix:	rad_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount represents maximum amount allowed for accumulating cash on hand.

+ References

No definition available.

+ Details

Name:	rad_LineOfCreditFacilityMaximumAmountAllowedForAccumulatingCashOnHand
Namespace Prefix:	rad_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Represents the number of days threshold relating to the debt threshold per the debt agreement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	rad_LineOfCreditFacilityNumberOfDaysThresholdRelatingToDebtThreshold
Namespace Prefix:	rad_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the threshold amount allowed to be outstanding per the debt agreement.

+ References

No definition available.

+ Details

Name:	rad_LineOfCreditFacilityThresholdAmountAllowedOutstanding
Namespace Prefix:	rad_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Represents the threshold amount of availability on the revolving credit facility, below which the entity is required to maintain a specified minimum fixed charge coverage ratio per the covenant terms.

+ References

No definition available.

+ Details

Name:	rad_LineOfCreditFacilityThresholdAmountOfAvailabilityForFixedChargeCoverageRequirements
Namespace Prefix:	rad_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

+ References

No definition available.

+ Details

Name:	rad_LineOfCreditFacilityThresholdAmountOfAvailabilityForFixedChargeCoverageRequirementsOnThirdConsecutiveBusinessDay
Namespace Prefix:	rad_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

+ References

No definition available.

+ Details

Name:	rad_LineOfCreditFacilityThresholdAmountOfAvailabilityForFixedChargeCoverageRequirementsThirtiethConsecutiveCalendarDay
Namespace Prefix:	rad_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Represents the threshold amount of debt per the agreement.

+ References

No definition available.

+ Details

Name:	rad_LineOfCreditFacilityThresholdAmountOfDebt
Namespace Prefix:	rad_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28551-108399

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

+ Details

Name:	us-gaap_DebtInstrumentFaceAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

+ Details

Name:	us-gaap_LettersOfCreditOutstandingAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(16))
-URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910

+ Details

Name:	us-gaap_LineOfCredit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- References

No definition available.

+ Details

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

- Definition

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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

+ References

No definition available.

+ Details

Name:	us-gaap_MinorityInterestOwnershipPercentageByParent
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Details

Name:	srt_OwnershipAxis=rad_RiteAidSubsidiariesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=rad_SeniorSecuredRevolvingCreditFacilityDueDecember2023Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_LondonInterbankOfferedRateLIBORMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_BaseRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=rad_SeniorSecuredTermLoanDueDecember2023Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=rad_SeniorSecuredRevolvingCreditFacilityDueJanuary2020Member
Namespace Prefix:
Data Type:	na
Balance Type:
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- Details

Name:	us-gaap_LongtermDebtTypeAxis=rad_SeniorNotes6.125Percent2023DueMember
Namespace Prefix:
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Indebtedness and Credit Agreement - Credit Facility (Details) $ in Thousands		9 Months Ended
	Dec. 20, 2018 USD ($)	Nov. 30, 2019 USD ($)	Mar. 02, 2019 USD ($)	May 21, 2018	Apr. 29, 2018 USD ($)	Apr. 28, 2018 USD ($)	Apr. 19, 2018
Rite Aid Subsidiaries [Member]
Credit facility
Ownership interest (as a percent)		100.00%
Senior secured revolving credit facility due December 2023
Credit facility
Maximum borrowing capacity	$ 2,700,000
Principal amount of debt		$ 1,135,000	$ 875,000
Outstanding borrowings		1,585,000
Letters of credit outstanding		83,195
Additional borrowing capacity		1,481,805
Amount of debt allowed to be outstanding		1,500,000
Threshold amount of debt		750,000
Number of days relating to debt threshold	90 days
Availability under revolving credit facility		1,481,805
Senior secured revolving credit facility due December 2023 \| Minimum
Credit facility
Additional borrowing capacity		$ 365,000
Fixed charge coverage ratio	1.00	1.00
Threshold availability on the thirtieth consecutive calendar day	$ 250,000
Senior secured revolving credit facility due December 2023 \| Maximum
Credit facility
Threshold availability on revolving credit facility to trigger fixed charge coverage requirements	200,000
Threshold availability on the third consecutive business day	$ 250,000
Senior secured revolving credit facility due December 2023 \| LIBOR \| Minimum
Credit facility
Percentage points added to the reference rate	1.25%
Senior secured revolving credit facility due December 2023 \| LIBOR \| Maximum
Credit facility
Percentage points added to the reference rate	1.75%
Senior secured revolving credit facility due December 2023 \| Base rate \| Minimum
Credit facility
Percentage points added to the reference rate	0.25%
Senior secured revolving credit facility due December 2023 \| Base rate \| Maximum
Credit facility
Percentage points added to the reference rate	0.75%
Senior secured term loan due December 2023
Credit facility
Principal amount of debt	$ 450,000	$ 450,000	450,000
Senior secured term loan due December 2023 \| LIBOR
Credit facility
Percentage points added to the reference rate	3.00%
Senior secured term loan due December 2023 \| Base rate
Credit facility
Percentage points added to the reference rate	2.00%
Senior secured revolving credit facility due January 2020
Credit facility
Maximum borrowing capacity		2,700,000			$ 2,700,000	$ 3,000,000
Maximum amount of accumulated cash on hand	$ 200,000
6.125% senior notes due April 2023
Credit facility
Principal amount of debt		$ 1,753,490	$ 1,753,490
Debt instrument, stated interest rate (as a percent)		6.125%	6.125%	6.125%			6.125%