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EARNINGS PER SHARE (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Numerator:
Net income attributable to MGM Resorts International	$ 148,554	$ 217,476
Adjustment related to redeemable noncontrolling interests	(41)	133
Net income attributable to common stockholders – basic	148,513	217,609
Net income attributable to common stockholders – diluted	$ 148,513	$ 217,609
Denominator:
Weighted-average common shares outstanding – basic (in shares)	287,125	320,488
Potential dilution from stock-based awards (in shares)	1,971	3,269
Weighted-average common and common equivalent shares – diluted (in shares)	289,096	323,757

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