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Investments in and Advances to Unconsolidated Affiliates - Schedule of Share of Income From Unconsolidated Affiliates (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Schedule Of Equity Method Investments [Line Items]      
Income from unconsolidated affiliates $ 119,521 $ 147,690 $ 146,222
CityCenter Holdings LLC As Investee [Member]      
Schedule Of Equity Method Investments [Line Items]      
Income from unconsolidated affiliates 128,421 138,383 133,401
Other [Member]      
Schedule Of Equity Method Investments [Line Items]      
Income from unconsolidated affiliates $ (8,900) $ 9,307 $ 12,821