REAL ESTATE PROPERTIES (Details)		3 Months Ended
		Mar. 31, 2024 USD ($) Integer	Mar. 31, 2023 USD ($)	Dec. 31, 2023 USD ($)
Real Estate Properties [Line Items]
Number of Reporting Units | Integer		1
Depreciation Expense		$ 37,205,000	$ 33,846,000
Real Estate Properties
Land		835,795,000		$ 814,364,000
Building and building improvements		3,382,163,000		3,336,615,000
Tenant and other improvements		692,300,000		684,573,000
Right of use assets - Ground leases (operating)	[1]	17,663,000		17,996,000
Development and value-add properties	[2]	670,250,000		639,647,000
Real estate, development and value-add properties		5,598,171,000		5,493,195,000
Less accumulated depreciation		(1,299,905,000)		(1,273,723,000)
Real estate, net		$ 4,298,266,000		$ 4,219,472,000
Building [Member]
Real Estate Properties [Line Items]
Property, Plant and Equipment, Useful Life		40 years
Minimum [Member] | Building and Building Improvements
Real Estate Properties [Line Items]
Property, Plant and Equipment, Useful Life		3 years
Maximum [Member] | Building and Building Improvements
Real Estate Properties [Line Items]
Property, Plant and Equipment, Useful Life		15 years

[1] EastGroup applies the principles of Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) 842, Leases, and its related Accounting Standards Updates (“ASUs”) to account for its ground leases, which are classified as operating leases. The related operating lease liabilities for ground leases are included in Other liabilities on the Consolidated Balance Sheets.

[2] Value-add properties are defined in Note 6.