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Leases - Additional Information (Detail) $ in Millions |  | 12 Months Ended
--- | --- | ---
Dec. 01, 2020 USD ($) | Dec. 31, 2020 USD ($) Renewal_period
Mandalay Bay and MGM Grand Las Vegas [Member] | MGP BREIT Venture [Member] |  |
Leases [Line Items] |  |
Initial annual rent |  | $ 292
Percentage of expected lease term of economic useful life |  | 75.00%
Percentage Of present value of future minimum lease payments |  | 90.00%
Lease agreement Initial lease term |  | 30 years
Number of renewal periods, exercisable at option | Renewal_period |  | 2
Lease agreement renewal period |  | 10 years
Lease, Initial Annual Rent Beginning Period |  | Feb. 14, 2020
Lease, Initial Annual Rent Ending Period |  | Feb. 28, 2021
Annual rent escalator from year one through year fifteen |  | 2.00%
Annual rent escalator after year fifteen |  | 2.00%
Annual rent escalator cap after year fifteen |  | 3.00%
MGM China [Member] | MGM Macau [Member] |  |
Leases [Line Items] |  |
Initial contract term ending year |  | 25 years
Lease initial contract term ending period |  | 2031-04
MGM China [Member] | MGM Cotai [Member] |  |
Leases [Line Items] |  |
Initial contract term ending year |  | 25 years
Lease initial contract term ending period |  | 2038-01
Las Vegas Strip Resorts [Member] | Bellagio BREIT Venture [Member] | Blackstone Real Estate Income Trust [Member] |  |
Leases [Line Items] |  |
Lease agreement Initial lease term |  | 30 years
Lease agreement renewal period |  | 10 years
Initial annual rent |  | $ 245
Annual rent escalator from year one through year ten |  | 2.00%
Annual rent escalator from year eleven through year twenty |  | 2.00%
Annual rent escalator cap from year eleven through year twenty |  | 3.00%
Annual rent escalator after year twenty |  | 4.00%
Percentage of expected lease term of economic useful life |  | 75.00%
Percentage Of present value of future minimum lease payments |  | 90.00%
Annual rent | $ 250 |

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