Real Estate (Policies)	9 Months Ended
	Sep. 30, 2020
Real Estate [Abstract]
Right of use assets, ground leases	On January 1, 2019, EastGroup adopted the principles of FASB ASC 842, Leases, and its related Accounting Standards Updates (“ASUs”). In connection with the adoption, the Company recorded right of use assets for its ground leases, which are classified as operating leases, using the effective date transition option; under this option, prior years are not restated.