EARNINGS PER SHARE (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
BASIC EPS COMPUTATION FOR NET INCOME AVAILABLE TO EASTGROUP PROPERTIES, INC. COMMON STOCKHOLDERS [Abstract]
Net income attributable to common stockholders	$ 37,792	$ 30,771	$ 147,511	$ 85,668
Weighted average shares outstanding (in shares)	43,467	40,434	42,308	40,058
DILUTED EPS COMPUTATION FOR NET INCOME ATTRIBUTABLE TO EASTGROUP PROPERTIES, INC. COMMON STOCKHOLDERS
Net Income Available to Common Stockholders	$ 37,792	$ 30,771	$ 147,511	$ 85,668
Weighted average shares outstanding (in shares)	43,467	40,434	42,308	40,058
Unvested restricted stock	114	133	111	107
Weighted average diluted shares outstanding	43,581	40,567	42,419	40,165