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Income Taxes - Additional Information (Detail) - USD ($)
$ / shares in Units, $ in Thousands
 1 Months Ended 6 Months Ended 9 Months Ended 12 Months Ended
Mar. 30, 2020
Mar. 27, 2020
Mar. 31, 2021
Jun. 26, 2022
Dec. 31, 2020
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2017
Income Tax Disclosure [Line Items]                  
Federal income tax rate           21.00% 21.00% 21.00% 35.00%
Net deferred tax asset           $ 332,000      
Tax credit carry forward period           10 years      
Domestic losses recaptured in foreign tax credit carry forward.           $ 1,300,000      
Increase (decrease) in net income due to exemption from complementary tax           $ (10,000) $ 4,000    
Increase (decrease) in diluted earnings per share due to exemption from complementary tax           $ 0.02 $ 0.01    
Payments under the extended annual fee arrangement         $ 1,000 $ 2,000      
Unrecognized tax benefits, if recognized, would affect the effective tax rate         $ 9,000 11,000 $ 9,000    
Income Tax Expense (Benefit)           253,415 $ (191,572) $ 632,345  
Possible decrease in unrecognized tax benefits within next 12 months           13,000      
Subsequent Event                  
Income Tax Disclosure [Line Items]                  
Payments under the extended annual fee arrangement       $ 1,000          
Macau                  
Income Tax Disclosure [Line Items]                  
Deferred tax assets, valuation allowance           146,000      
Hong Kong                  
Income Tax Disclosure [Line Items]                  
Net operating losses, valuation allowance           3,000      
2022                  
Income Tax Disclosure [Line Items]                  
Tax credit carryforward expiration amount           297,000      
2023                  
Income Tax Disclosure [Line Items]                  
Tax credit carryforward expiration amount           976,000      
2024                  
Income Tax Disclosure [Line Items]                  
Tax credit carryforward expiration amount           780,000      
2025                  
Income Tax Disclosure [Line Items]                  
Tax credit carryforward expiration amount           674,000      
2026                  
Income Tax Disclosure [Line Items]                  
Tax credit carryforward expiration amount           134,000      
2027                  
Income Tax Disclosure [Line Items]                  
Tax credit carryforward expiration amount           $ 200,000      
MGM Grand Paradise SA | Macau Taxing Authority                  
Income Tax Disclosure [Line Items]                  
Macau's complementary tax rate on distributions of gaming profits (as a percent)           12.00%      
Macau                  
Income Tax Disclosure [Line Items]                  
Valuation allowance on foreign tax credit           $ 2,700,000      
Foreign tax credit carryover           $ 3,100,000      
Special gaming tax rate           35.00%      
Macau | MGM Grand Paradise SA                  
Income Tax Disclosure [Line Items]                  
Macau's complementary tax rate on distributions of gaming profits (as a percent) 12.00%         12.00%      
Complementary tax           $ 1,500,000      
State                  
Income Tax Disclosure [Line Items]                  
Complementary tax           536,000      
Deferred tax assets, valuation allowance           6,000      
Deferred tax assets after federal tax effect and before valuation allowance           35,000      
Macau Taxing Authority                  
Income Tax Disclosure [Line Items]                  
Income Tax Expense (Benefit)           $ 3,000      
Coronavirus Aid Relief And Economic Security Act                  
Income Tax Disclosure [Line Items]                  
Net operating losses carryback period   5 years              
Income tax receivable     $ 226,000            
Income tax benefit realized     $ 90,000