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Investments in and Advances to Unconsolidated Affiliates - Schedule of Investments in and Advances to Unconsolidated Affiliates (Parenthetical) (Detail) | Jun. 30, 2019 | Dec. 31, 2018
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CityCenter Holdings LLC As Investee [Member] |  |
Schedule Of Equity Method Investments [Line Items] |  |
Percentage ownership interest | 50.00% | 50.00%
Las Vegas Arena Company LLC As Investee [Member] |  |
Schedule Of Equity Method Investments [Line Items] |  |
Percentage ownership interest | 42.50% | 42.50%

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- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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