EARNINGS PER SHARE (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
BASIC EPS COMPUTATION FOR NET INCOME AVAILABLE TO EASTGROUP PROPERTIES, INC. COMMON STOCKHOLDERS [Abstract]
Net income attributable to common stockholders	$ 46,139	$ 27,558	$ 109,719	$ 54,897
Weighted average shares outstanding (in shares)	42,211	40,068	41,729	39,871
DILUTED EPS COMPUTATION FOR NET INCOME ATTRIBUTABLE TO EASTGROUP PROPERTIES, INC. COMMON STOCKHOLDERS
Net Income Available to Common Stockholders	$ 46,139	$ 27,558	$ 109,719	$ 54,897
Weighted average shares outstanding (in shares)	42,211	40,068	41,729	39,871
Unvested restricted stock	105	97	109	94
Weighted average diluted shares outstanding	42,316	40,165	41,838	39,965