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Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2019 | Mar. 31, 2018
Income Tax Disclosure [Line Items] |  |
Effective income tax rate | 51.90% | (47.20%)
Income tax expense | $ 71,511 | $ (85,379)
Empire City [Member] |  |
Income Tax Disclosure [Line Items] |  |
Increase in deferred tax liabilities | 10,000 |
Income tax expense | 10,000 |
Macau [Member] |  |
Income Tax Disclosure [Line Items] |  |
Increase in valuation allowance on foreign tax credit | 10,000 |
Income tax expense | $ 10,000 |
Special gaming tax rate | 35.00% |
Macau [Member] | MGM Grand Paradise SA [Member] |  |
Income Tax Disclosure [Line Items] |  |
Macau's complementary tax rate on distributions of gaming profits (as a percent) | 12.00% |
Increase in deferred tax liabilities | $ 35,000 |

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