Lease Termination and Impairment Charges - Closures (Details) - Lease termination charges - USD ($) $ in Thousands	3 Months Ended
May 30, 2020	Jun. 01, 2019
Closed store and distribution center charges
Balance-beginning of period	$ 2,253	$ 124,046
Existing Topic 420 liabilities eliminated by recording a reduction to the ROU asset		(112,288)
Cash payments, net of sublease income	(83)	(2,425)
Balance-end of period	$ 2,170	$ 9,333

The amount of cash payments made as the result of exit or disposal activities, net of sublease income on the related facilities.

No definition available.

+ Details

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

- Definition

The amount of Existing Topic 420 liabilities eliminated by recording a reduction to the ROU asset.

+ References

No definition available.

+ Details

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

- Definition

Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)(2)
-URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB TOPIC 5.P.4(b))
-URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747

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Balance Type:	credit
Period Type:	instant

- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
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Balance Type:	na
Period Type:	duration

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: