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Investments in and Advances to Unconsolidated Affiliates (Tables) | 12 Months Ended
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Dec. 31, 2021
Equity Method Investments and Joint Ventures [Abstract] |
Schedule of Investments in and Advances to Unconsolidated Affiliates | Investments in and advances to unconsolidated affiliates consisted of the following:
|  | December 31,
|  | 2021 |  | 2020
|  | (In thousands)
CityCenter (50% as of December 31, 2020) |  | $ | — |  |  | $ | 441,893 |
MGP BREIT Venture (50.1% owned by the Operating Partnership) |  | 816,756 |  |  | 810,066 |
BetMGM (50%) |  | 41,060 |  |  | 27,310 |
Other |  | 109,228 |  |  | 167,774 |
|  | $ | 967,044 |  |  | $ | 1,447,043 |
Schedule of Share of Net Income (Loss) From Unconsolidated Affiliates | The Company recorded its share of income (loss) from unconsolidated affiliates, including adjustments for basis differences, as follows:
|  | Year Ended December 31,
|  | 2021 |  | 2020 |  | 2019
|  | (In thousands)
Income from unconsolidated affiliates |  | $ | 84,823 |  |  | $ | 42,938 |  |  | $ | 119,521 |
Non-operating items from unconsolidated affiliates |  | (83,243) |  |  | (103,304) |  |  | (62,296) |
|  | $ | 1,580 |  |  | $ | (60,366) |  |  | $ | 57,225 |
Schedule of Share of Income (Loss) From Unconsolidated Affiliates | The following table summarizes further information related to the Company’s share of operating income (loss) from unconsolidated affiliates:
|  | Year Ended December 31,
|  | 2021 |  | 2020 |  | 2019
|  | (In thousands)
CityCenter (through September 26, 2021) |  | $ | 128,127 |  |  | $ | (29,753) |  |  | $ | 128,421 |
MGP BREIT Venture |  | 155,817 |  |  | 136,755 |  |  | — |
BetMGM |  | (211,182) |  |  | (61,663) |  |  | (15,804) |
Other |  | 12,061 |  |  | (2,401) |  |  | 6,904 |
|  | $ | 84,823 |  |  | $ | 42,938 |  |  | $ | 119,521 |
Summarized Balance Sheet Information | Summarized balance sheet information is as follows:
|  | December 31,
|  | 2021 |  | 2020
|  | (In thousands)
Cash and cash equivalents |  | $ | 16 |  |  | $ | 96,758 |
Property and equipment, net |  | 4,439,851 |  |  | 10,237,004 |
Other assets, net |  | 193,184 |  |  | 256,813 |
Debt, net |  | 2,994,782 |  |  | 4,715,997 |
Other liabilities |  | 8,018 |  |  | 270,583 |
Summarized Income Statement Information | Summarized results of operations are as follows:
|  | Year Ended December 31,
|  | 2021 |  | 2020 |  | 2019
|  | (In thousands)
Net revenues |  | $ | 1,084,503 |  |  | $ | 869,638 |  |  | $ | 1,294,861 |
Net income (loss) |  | 294,797 |  |  | (43,749) |  |  | 69,143 |
Tabular Disclosure of Differences between Share of Venture-Level Equity and Investment Balances | Differences between the Company’s share of venture-level equity and investment balances are as follows:
|  | December 31,
|  | 2021 |  | 2020
|  | (In thousands)
Venture-level equity attributable to the Company |  | $ | 961,787 |  |  | $ | 2,981,550 |
Adjustment to CityCenter equity upon contribution of net assets by MGM Resorts International(1) |  | — |  |  | (504,171) |
CityCenter capitalized interest(2) |  | — |  |  | 168,966 |
CityCenter completion guarantee(3) |  | — |  |  | 248,730 |
CityCenter deferred gain(4) |  | — |  |  | (208,204) |
CityCenter capitalized interest on sponsor notes(5) |  | — |  |  | (33,010) |
Other-than-temporary impairments of CityCenter investment(6) |  | — |  |  | (1,256,516) |
Other adjustments |  | 5,257 |  |  | 49,698 |
|  | $ | 967,044 |  |  | $ | 1,447,043 |
(1)Primarily related to land and fixed assets. (2)Related to interest capitalized on the Company’s investment balance during development and construction stages. (3)Created by contributions to CityCenter under the completion guarantee recognized as equity contributions by CityCenter split between the members. (4)Related to a deferred gain on assets contributed to CityCenter upon formation of CityCenter. (5)Related to interest on the sponsor notes capitalized by CityCenter during development. Such sponsor notes were converted to equity in 2013. (6)The impairment of the Company’s CityCenter investment included $352 million of impairments allocated to land.

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- Definition Tabular disclosure of the entity's proportionate share of results of operations of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. + References No definition available. + Details
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- Definition Tabular disclosure of equity method investments including, but not limited to, name of each investee or group of investments, percentage ownership, difference between recorded amount of an investment and the value of the underlying equity in the net assets, and summarized financial information. + 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 -URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571 + Details
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- Definition A tabular presentation of the information summarizing investments in and advances to majority-owned subsidiaries, other controlled companies, and other affiliates, as prescribed by the SEC. It reflects specified information about ownership, financial results from, and financial position in such entities. Includes the tabular presentations that disaggregate investments in and advances to majority-owned subsidiaries, other controlled companies, and other affiliates. + References No definition available. + Details
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