| Cover Page | Apr. 27, 2021 |
| Cover [Abstract] | |
| Entity Central Index Key | 0000049600 |
| Title of 12(b) Security | Common stock, $0.0001 par value per share |
| Trading Symbol | EGP |
| Written Communications | false |
| Entity Incorporation, State or Country Code | MD |
| Document Type | 8-K |
| Document Period End Date | Apr. 27, 2021 |
| Entity Registrant Name | EASTGROUP PROPERTIES, INC |
| Entity Address, Address Line One | 400 W. Parkway Place, Suite 100 |
| Entity Address, City or Town | Ridgeland |
| Entity Address, State or Province | MS |
| Entity Address, Postal Zip Code | 39157 |
| City Area Code | 601 |
| Local Phone Number | 354-3555 |
| Entity File Number | 1-07094 |
| Entity Tax Identification Number | 13-2711135 |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Emerging Growth Company | false |
| Security Exchange Name | NYSE |
| Amendment Flag | false |
