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LEASES - Schedule of Components of Lease Costs (Detail) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Leases [Line Items]    
Operating lease cost, primarily classified within "General and administrative" $ 271,849 $ 198,991
Interest expense 893 (656)
Amortization expense 20,157 17,814
Total finance lease costs 21,050 17,158
Bellagio BREIT Venture    
Leases [Line Items]    
Operating lease cost, primarily classified within "General and administrative" 83,000 83,000
Mandalay Bay and MGM Grand Las Vegas    
Leases [Line Items]    
Operating lease cost, primarily classified within "General and administrative" $ 99,000 $ 99,000