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COMMITMENTS AND CONTINGENCIES - Additional Information (Details) $ in Thousands, MOP$ in Millions | 1 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | ---
Jan. 31, 2023 MOP (MOP$) | Sep. 30, 2023 USD ($) | Sep. 30, 2023 MOP (MOP$) | Sep. 30, 2023 JPY (¥) | Dec. 31, 2022 USD ($) | Dec. 31, 2022 MOP (MOP$)
Loss Contingencies [Line Items] |  |  |  |  |  |
Commitment amount |  | $ 8,500,000 |  | ¥ 1,270,000,000,000 |  |
Long-term debt, gross |  | 6,536,906 |  |  | $ 8,761,189 |
Senior Credit Facility |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Credit facility outstanding |  | 29,000 |  |  |  |
Revolving Credit Facility |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Long-term debt, gross |  | 1,350,000 |  |  |  |
Performance Guarantee |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Obligation amount |  | $ 85,000 |  | ¥ 12,650,000,000 |  |
Guarantor obligations (as s percent) |  | 50.00% |  |  |  |
Blackstone real estate income trust |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Obligation amount |  | $ 3,010,000 |  |  |  |
Mandalay Bay and MGM Grand Las Vegas |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Obligation amount |  | 3,000,000 |  |  |  |
MGM Grand Paradise SA | January 2023 Concessions |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Obligation amount | MOP$ 1,000 | 124,000 |  |  | 124,000 | MOP$ 1,000
Guarantee expiration, days after the end of the concession term | 180 days |  |  |  |  |
Released pledged cash |  | 300,000 |  |  |  |
MGM Grand Paradise SA | June 2022 Sub Concession Extension Contract |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Obligation amount |  | $ 87,000 | MOP$ 700 |  | $ 124,000 |

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