| Cover | Dec. 17, 2020 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Dec. 17, 2020 |
| Entity File Number | 1-5742 |
| Entity Registrant Name | Rite Aid Corporation |
| Entity Central Index Key | 0000084129 |
| Entity Tax Identification Number | 23-1614034 |
| Entity Incorporation, State or Country Code | DE |
| Entity Address, Address Line One | 30 Hunter Lane |
| Entity Address, City or Town | Camp Hill |
| Entity Address, State or Province | PA |
| Entity Address, Postal Zip Code | 17011 |
| City Area Code | 717 |
| Local Phone Number | 761-2633 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock, $1.00 par value |
| Trading Symbol | RAD |
| Security Exchange Name | NYSE |
| Entity Emerging Growth Company | false |
