EARNINGS PER SHARE (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
BASIC EPS COMPUTATION FOR NET INCOME AVAILABLE TO EASTGROUP PROPERTIES, INC. COMMON STOCKHOLDERS [Abstract]
Net income attributable to common stockholders	$ 48,896	$ 37,792	$ 137,036	$ 147,511
Weighted average shares outstanding (in shares)	45,658	43,467	44,688	42,308
DILUTED EPS COMPUTATION FOR NET INCOME ATTRIBUTABLE TO EASTGROUP PROPERTIES, INC. COMMON STOCKHOLDERS
Net Income Available to Common Stockholders	$ 48,896	$ 37,792	$ 137,036	$ 147,511
Weighted average shares outstanding (in shares)	45,658	43,467	44,688	42,308
Unvested restricted stock	130	114	94	111
Weighted average diluted shares outstanding	45,788	43,581	44,782	42,419