EARNINGS PER SHARE (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
BASIC EPS COMPUTATION FOR NET INCOME AVAILABLE TO EASTGROUP PROPERTIES, INC. COMMON STOCKHOLDERS [Abstract]
Net income attributable to common stockholders	$ 66,943	$ 55,180	$ 189,665	$ 169,111
Weighted average shares outstanding (in shares)	53,159	48,864	52,544	48,324
DILUTED EPS COMPUTATION FOR NET INCOME ATTRIBUTABLE TO EASTGROUP PROPERTIES, INC. COMMON STOCKHOLDERS
Net Income Attributable to Common Stockholders	$ 66,943	$ 55,180	$ 189,665	$ 169,111
Weighted average shares outstanding (in shares)	53,159	48,864	52,544	48,324
Effect of dilutive securities	105	135	80	111
Weighted average diluted shares outstanding (in shares)	53,264	48,999	52,624	48,435