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LONG-TERM DEBT - Schedule of Long-Term Debt (Detail) - USD ($) $ in Thousands | Mar. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Debt Instrument [Line Items] |  |
Long-term debt, gross | $ 6,916,126 | $ 8,761,189
Less: Premiums, discounts, and unamortized debt issuance costs, net | (38,151) | (41,899)
Long-term debt | 6,877,975 | 8,719,290
Less: Current portion | (36,492) | (1,286,473)
Long-term debt, net | $ 6,841,483 | 7,432,817
6% senior notes, due 2023 |  |
Debt Instrument [Line Items] |  |
Long-term debt, interest rate (in percent) | 6.00% |
Senior notes | $ 0 | 1,250,000
5.375% MGM China senior notes, due 2024 |  |
Debt Instrument [Line Items] |  |
Long-term debt, interest rate (in percent) | 5.375% |
Senior notes | $ 750,000 | 750,000
6.75% senior notes, due 2025 |  |
Debt Instrument [Line Items] |  |
Long-term debt, interest rate (in percent) | 6.75% |
Senior notes | $ 750,000 | 750,000
5.75% senior notes, due 2025 |  |
Debt Instrument [Line Items] |  |
Long-term debt, interest rate (in percent) | 5.75% |
Senior notes | $ 675,000 | 675,000
5.25% MGM China senior notes, due 2025 |  |
Debt Instrument [Line Items] |  |
Long-term debt, interest rate (in percent) | 5.25% |
Senior notes | $ 500,000 | 500,000
5.875% MGM China senior notes, due 2026 |  |
Debt Instrument [Line Items] |  |
Long-term debt, interest rate (in percent) | 5.875% |
Senior notes | $ 750,000 | 750,000
4.625% senior notes, due 2026 |  |
Debt Instrument [Line Items] |  |
Long-term debt, interest rate (in percent) | 4.625% |
Senior notes | $ 400,000 | 400,000
5.5% senior notes, due 2027 |  |
Debt Instrument [Line Items] |  |
Long-term debt, interest rate (in percent) | 5.50% |
Senior notes | $ 675,000 | 675,000
4.75% MGM China senior notes, due 2027 |  |
Debt Instrument [Line Items] |  |
Long-term debt, interest rate (in percent) | 4.75% |
Senior notes | $ 750,000 | 750,000
4.75% senior notes, due 2028 |  |
Debt Instrument [Line Items] |  |
Long-term debt, interest rate (in percent) | 4.75% |
Senior notes | $ 750,000 | 750,000
7% debentures, due 2036 |  |
Debt Instrument [Line Items] |  |
Long-term debt, interest rate (in percent) | 7.00% |
Senior notes | $ 552 | 552
MGM China first revolving credit facility |  |
Debt Instrument [Line Items] |  |
Long-term debt, gross | 879,003 | 1,249,744
MGM China second revolving credit facility |  |
Debt Instrument [Line Items] |  |
Long-term debt, gross | 0 | 224,313
LeoVegas senior notes, due 2023 |  |
Debt Instrument [Line Items] |  |
Senior notes | $ 36,571 | $ 36,580

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