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Investments in and Advances to Unconsolidated Affiliates - Additional Information (Detail) - USD ($) $ in Thousands | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Jun. 30, 2021 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | Sep. 27, 2021
Schedule Of Equity Method Investments [Line Items] |  |  |  |  |
Distributions from unconsolidated affiliates |  | $ 9,694 | $ 63,960 | $ 100,700 |
CityCenter Holdings, LLC |  |  |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |  |  |
Business combination, step acquisition, equity interest in acquiree, including subsequent acquisition, percentage |  |  |  |  | 100.00%
Business combination, step acquisition, equity interest in acquiree, immediately prior to transaction, percentage |  |  |  |  | 50.00%
CityCenter Holdings, LLC |  |  |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |  |  |
Distribution paid/declared |  |  | 101,000 | 180,000 |
MGP BREIT Venture |  |  |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |  |  |
Distributions from unconsolidated affiliates |  | $ 94,000 | $ 81,000 |  |
Percentage ownership interest |  | 50.10% | 50.10% |  |
City Center |  |  |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |  |  |
Distributions from unconsolidated affiliates |  |  | $ 51,000 | $ 90,000 |
Distributions from unconsolidated affiliates, percentage |  |  | 50.00% | 50.00% |
Percentage ownership interest | 50.00% |  | 50.00% |  |
BetMGM |  |  |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |  |  |
Contributions to unconsolidated affiliates |  | $ 225,000 | $ 80,000 |  |
Percentage ownership interest |  | 50.00% |  |  |
Harmon Land | CityCenter Holdings, LLC |  |  |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |  |  |
Consideration received from sale of discontinued operations | $ 80,000 |  |  |  |
Recognized gain on sale, unconsolidated affiliates and reversal of basis differences | 30,000 |  |  |  |
Harmon Land | City Center |  |  |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |  |  |
Distributions from unconsolidated affiliates | 15,000 |  |  |  |
Consideration received from sale of discontinued operations | 50,000 |  |  |  |
Recognized gain on sale, unconsolidated affiliates and reversal of basis differences | $ 35,000 |  |  |  |
Other |  |  |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |  |  |
Equity method investment, other than temporary impairment |  | $ 22,000 | $ 64,000 |  |

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