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STOCKHOLDERS’ EQUITY - Additional Information (Details) - USD ($)
 1 Months Ended 2 Months Ended 12 Months Ended
Mar. 15, 2021
Mar. 31, 2021
Feb. 23, 2024
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Nov. 30, 2023
Feb. 28, 2023
Mar. 31, 2022
May 31, 2018
Class of Stock [Line Items]                    
Redemption of MGP OP units           $ 50,828,000        
Common stock repurchases, value       $ 2,313,968,000 $ 2,775,217,000 $ 1,753,509,000        
Common Stock                    
Class of Stock [Line Items]                    
Common stock repurchases (in shares)       54,325,000 76,404,000 43,088,000        
Common stock repurchases, value       $ 543,000 $ 764,000 $ 430,000        
Share Repurchase Program One | Common Stock                    
Class of Stock [Line Items]                    
Authorized amount of stock repurchase           $ 2,000,000,000       $ 2,000,000,000
Share Repurchase Program Two | Common Stock                    
Class of Stock [Line Items]                    
Authorized amount of stock repurchase         $ 3,000,000,000       $ 2,000,000,000  
Share Repurchase Program Three | Common Stock                    
Class of Stock [Line Items]                    
Authorized amount of stock repurchase             $ 2,000,000,000 $ 2,000,000,000 $ 2,000,000,000  
Share Repurchase Program Four | Common Stock                    
Class of Stock [Line Items]                    
Authorized amount of stock repurchase               2,000,000,000    
Share Repurchase Program Five | Common Stock                    
Class of Stock [Line Items]                    
Authorized amount of stock repurchase             2,000,000,000      
Share Repurchase Program | Common Stock                    
Class of Stock [Line Items]                    
Common stock repurchases (in shares)       54,000,000 76,000,000 43,000,000        
Common stock repurchases, value       $ 2,300,000,000 $ 2,800,000,000 $ 1,800,000,000        
Share Repurchase Program February 2023 | Common Stock                    
Class of Stock [Line Items]                    
Repurchase of common stock, remaining amount       $ 2,000,000,000     $ 2,000,000,000 $ 183,000,000    
Subsequent Event | Share Repurchase Program | Common Stock                    
Class of Stock [Line Items]                    
Common stock repurchases (in shares)     7,000,000              
Common stock repurchases, value     $ 320,000,000              
Corvex Management LP | Share Repurchase Program | Common Stock                    
Class of Stock [Line Items]                    
Common stock repurchases (in shares)         4,500,000          
Common stock repurchases, value         $ 202,500,000          
MGM Growth Properties LLC | Operating Partnership                    
Class of Stock [Line Items]                    
Noncontrolling interest (in percent) 42.10% 42.10%                
Operating partnership units, redeemed (in shares)   37,000,000                
Partner capital account units redeemed for cash (in shares)   15,000,000                
Operating partnership redemption units for class A offering (in shares)   22,000,000                
Redemption of MGP OP units   $ 1,200,000,000                
Class A shares | MGM Growth Properties LLC                    
Class of Stock [Line Items]                    
New issuance of shares (in shares) 22,000,000         3,000,000        
Class A shares | MGM Growth Properties LLC | Operating Partnership                    
Class of Stock [Line Items]                    
Noncontrolling interest (in percent)           41.60%