Area of meeting and event space.

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- Definition

Area of retail and restaurant space.

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- Definition

Expected construction and development costs.

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Minority interest ownership percentage in consolidated subsidiary.

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Number of hotel rooms.

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- Definition

Number of seats in an entertainment venue.

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- Definition

Number of slot machines.

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- Definition

Number of table games.

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- Definition

Organization disclosure.

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No definition available.

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Percent interest in a less than hundred percent owned consolidated affiliate.

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Required minimum ownership percentage in beneficial ownership to entitle majority of voting power.

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Space of parking garage.

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Area of a real estate property.

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- Definition

Description of voting rights of common stock. Includes eligibility to vote and votes per share owned. Include also, if any, unusual voting rights.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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Percentage of subsidiary's or equity investee's stock owned by parent company after stock transaction.

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The number of units or percentage investment held in the subsidiary by the limited liability company or limited partnership.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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Percentage of the Variable Interest Entity's (VIE) voting interest owned by (or beneficial interest in) the reporting entity (directly or indirectly).

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Organization - Additional Information (Detail) $ in Millions		3 Months Ended
	Feb. 16, 2017	Mar. 31, 2017 USD ($) a ft² games Slot Room Parking_garage_space Segment	Dec. 31, 2016	Oct. 31, 2015 Seat
Organization Disclosure [Line Items]
Partnership interest		76.30%
Number of reportable segments \| Segment		2
CityCenter Holdings LLC As Investee [Member]
Organization Disclosure [Line Items]
Percentage ownership interest		50.00%	50.00%
Las Vegas Arena Company LLC As Investee [Member]
Organization Disclosure [Line Items]
Percentage ownership interest		42.50%	42.50%
Number of seats \| Seat				20,000
Grand Victoria [Member]
Organization Disclosure [Line Items]
Percentage ownership interest		50.00%
Infinity World Development Corp [Member] \| CityCenter Holdings LLC As Investee [Member]
Organization Disclosure [Line Items]
Percentage ownership interest		50.00%
Anschutz Entertainment Group, Inc [Member] \| Las Vegas Arena Company LLC As Investee [Member]
Organization Disclosure [Line Items]
Percentage ownership interest		42.50%
Athena Arena, LLC [Member] \| Las Vegas Arena Company LLC As Investee [Member]
Organization Disclosure [Line Items]
Percentage ownership interest		15.00%
Hyatt Gaming [Member] \| Grand Victoria [Member] \| Co-venturer [Member]
Organization Disclosure [Line Items]
Percentage ownership interest		50.00%
Class A shares [Member]
Organization Disclosure [Line Items]
Common stock voting rights		one vote per share
MGM Growth Properties LLC [Member]
Organization Disclosure [Line Items]
Percentage of minority interest		23.70%	0.00%
Percentage of partnership ownership interest		100.00%
Minimum ownership percentage required for majority voting interest		30.00%
Non-Guarantor MGP Subsidiaries [Member] \| Class B shares [Member]
Organization Disclosure [Line Items]
Common stock voting rights		Class B share, is entitled to an amount of votes representing a majority of the total voting power of MGP’s shares so long as the Company and its controlled affiliates’ (excluding MGP) aggregate beneficial ownership of the combined economic interests in MGP and the Operating Partnership does not fall below 30%.
MGM China [Member]
Organization Disclosure [Line Items]
Percentage ownership interest	56.00%	56.00%
MGM Cotai [Member]
Organization Disclosure [Line Items]
Expected development and construction cost, excluding capitalized and land related costs \| $		$ 3,300
MGM Cotai [Member] \| Maximum [Member]
Organization Disclosure [Line Items]
Number of hotel rooms \| Room		1,400
Number of gaming tables \| games		500
Number of slots \| Slot		1,500
MGM Cotai [Member] \| Macau [Member]
Organization Disclosure [Line Items]
Area of development site (in acres) \| a		18
MGM Springfield [Member] \| Massachusetts [Member]
Organization Disclosure [Line Items]
Area of development site (in acres) \| a		14
Number of hotel rooms \| Room		250
Number of gaming tables \| games		100
Number of slots \| Slot		3,000
Expected development and construction cost, excluding capitalized and land related costs \| $		$ 865
Area of retail and restaurant space \| ft²		100,000
Area of meeting and event space \| ft²		44,000
Parking garage space \| Parking_garage_space		3,375