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Income Taxes - Additional Information (Detail) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Income Tax Disclosure [Line Items]    
Effective income tax rate 28.00% 51.90%
Income tax expense (benefit) $ 262,304 $ 71,511
Macau [Member]    
Income Tax Disclosure [Line Items]    
Increase in tax credit carry forward valuation allowance 25,000  
Increase in foreign tax credit carry forward valuation allowance 13,000  
Income tax expense (benefit) $ (6,000)  
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%  
Macau [Member] | MGP BREIT Venture [Member]    
Income Tax Disclosure [Line Items]    
Income tax expense (benefit) $ 349,000