EQUITY OFFERINGS (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended						6 Months Ended		12 Months Ended
		Jun. 30, 2024		Mar. 31, 2024		Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2024		Dec. 31, 2023
Equity Offerings [Line Items]
Issuance of shares of common stock		639,299		272,342		1,065,678	652,909
Forward Equity Offering Activity [Roll Forward]
Forward Sale Agreements Outstanding		600,053		420,370				600,053		406,041
Forward Sale Agreements Outstanding, price per share		$ 166.65		$ 182.79				$ 166.65		$ 183.92
Forward Sale Agreements Outstanding, value		$ 100,000		$ 76,839				$ 100,000		$ 74,679
Forward sale agreements settled, shares		(420,370)	[1]	(272,342)	[2]
Forward sale agreements settled, price per share		$ 182.79	[1]	$ 183.59	[2]
Forward sale agreements settled, gross proceeds		$ (76,839)	[1]	$ (50,000)	[2]
Forward sale agreements settled, net proceeds		$ 76,200		$ 49,364
New forward sale agreements, shares	[3]	600,053		286,671
New forward sale agreements, price per share	[3]	$ 166.65		$ 181.95
New forward sale agreements, value	[3]	$ 100,000		$ 52,160
ATM Program - December 2022
Equity Offerings [Line Items]
At-the-market program, maximum aggregate gross sales price										750,000
Gross Proceeds from Issuance of Common Stock										$ 464,305
ATM Program - October 2023
Equity Offerings [Line Items]
At-the-market program, maximum aggregate gross sales price								$ 750,000
Direct common stock issuances
Equity Offerings [Line Items]
Issuance of shares of common stock	[5]	218,929	[4]	0				218,929	[4]	4,094,896
Sale of stock, weighted average price per share		$ 168.62	[4]	$ 0				$ 168.62	[4]	$ 170.77
Gross Proceeds from Issuance of Common Stock		$ 36,916	[4]	$ 0				$ 36,916	[4]	$ 699,304
Net proceeds from issuance of common stock		$ 36,547	[4]	$ 0				$ 36,547	[4]	$ 692,312

[1] EastGroup settled outstanding forward equity sale agreements by issuing 420,370 shares of common stock in exchange for net proceeds of approximately $76,200,000.

[2] EastGroup settled outstanding forward equity sale agreements by issuing 272,342 shares of common stock in exchange for net proceeds of approximately $49,364,000.

[3] The Company did not receive any proceeds from the sale of common shares by the forward counterparties at the time it entered into forward sale agreements.

[4] Excludes 77,650 shares sold on June 28, 2024, at a weighted average price of $168.63, providing net proceeds to the Company of $12,963,000. These shares were not deemed to be issued and outstanding until settlement, subsequent to June 30, 2024, as disclosed in Note 22.

[5] Excludes shares of common stock sold on a forward basis as described below.