EARNINGS PER SHARE (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
BASIC EPS COMPUTATION FOR NET INCOME AVAILABLE TO EASTGROUP PROPERTIES, INC. COMMON STOCKHOLDERS [Abstract]
Net income attributable to common stockholders	$ 43,450	$ 46,139	$ 88,140	$ 109,719
Weighted average shares outstanding (in shares)	44,656	42,211	44,204	41,729
DILUTED EPS COMPUTATION FOR NET INCOME ATTRIBUTABLE TO EASTGROUP PROPERTIES, INC. COMMON STOCKHOLDERS
Net Income Available to Common Stockholders	$ 43,450	$ 46,139	$ 88,140	$ 109,719
Weighted average shares outstanding (in shares)	44,656	42,211	44,204	41,729
Unvested restricted stock	78	105	75	109
Weighted average diluted shares outstanding	44,734	42,316	44,279	41,838