EARNINGS PER SHARE (Details) - USD ($) shares in Thousands, $ in Thousands		3 Months Ended
		Mar. 31, 2026	Mar. 31, 2025
BASIC EPS COMPUTATION FOR NET INCOME AVAILABLE TO EASTGROUP PROPERTIES, INC. COMMON STOCKHOLDERS [Abstract]
Net income attributable to common stockholders		$ 94,624	$ 59,423
Weighted average shares outstanding (in shares)		53,451	51,965
DILUTED EPS COMPUTATION FOR NET INCOME ATTRIBUTABLE TO EASTGROUP PROPERTIES, INC. COMMON STOCKHOLDERS
Net Income Attributable to Common Stockholders		$ 94,624	$ 59,423
Weighted average shares outstanding (in shares)		53,451	51,965
Effect of dilutive securities	[1]	95	63
Weighted average diluted shares outstanding (in shares)		53,546	52,028

[1] Potentially dilutive securities include outstanding forward equity sale agreements and unvested restricted shares of common stock.