Business	3 Months Ended
Mar. 31, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Business	BUSINESS Organization. MGM Growth Properties LLC (“MGP” or the “Company”) is a limited liability company that was organized in Delaware on October 23, 2015. MGP conducts its operations through MGM Growth Properties Operating Partnership LP (the “Operating Partnership”), a Delaware limited partnership that was formed on January 6, 2016 and acquired by MGP on April 25, 2016 (the “IPO Date”) in connection with MGP's Formation Transactions (defined below), including its initial public offering of Class A shares as discussed further below. When the Company files its initial federal income tax return for its taxable year ended December 31, 2016 in 2017, it intends to make an election to be treated as a real estate investment trust ("REIT"). MGM Resorts International (“MGM” or the “Parent”) is a Delaware corporation that acts largely as a holding company and, through its subsidiaries, owns and operates large-scale destination entertainment and leisure resorts. Prior to the IPO Date, the real estate assets of The Mirage, Mandalay Bay, Luxor, New York-New York, Monte Carlo, Excalibur, The Park, Gold Strike Tunica, MGM Grand Detroit and Beau Rivage (collectively, the “IPO Properties”), which comprised the Company’s real estate investments prior to the acquisition of Borgata (as described below), were owned and operated by MGM. On the IPO Date, MGM engaged in a series of transactions (the “Formation Transactions”) in which subsidiaries of MGM transferred the IPO Properties to newly formed subsidiaries and subsequently transferred 100% ownership interest in such subsidiaries to the Operating Partnership pursuant to a Master Contribution Agreement (the “MCA”) in exchange for Operating Partnership units representing limited partner interests in the Operating Partnership and the assumption by the Operating Partnership of $4 billion of indebtedness from the contributing MGM subsidiaries. On the IPO Date, MGP completed the initial public offering of 57,500,000 of its Class A shares representing limited liability company interests at an initial offering price of $21.00 per share, inclusive of the full exercise by the underwriters of their option to purchase 7,500,000 Class A shares. MGP contributed the proceeds from its initial public offering to the Operating Partnership in exchange for 26.7% of the Operating Partnership units and the general partner interest in the Operating Partnership. Certain subsidiaries of MGM acquired the remaining 73.3% of the outstanding Operating Partnership units on such date. MGM retained ownership of MGP’s outstanding Class B share. The Class B share is a non-economic interest in MGP which does not provide its holder any rights to profits or losses or any rights to receive distributions from the operations of MGP or upon liquidation or winding up of MGP but which represents a majority of the voting power of MGP’s shares. As a result, MGP continues to be controlled by MGM through its majority voting rights, and is consolidated by MGM. As of March 31, 2017, MGM owned 76.3% of the Operating Partnership units in the Operating Partnership. MGP owned the remaining 23.7% of the Operating Partnership units in the Operating Partnership. MGM’s Operating Partnership units are exchangeable into Class A shares of MGP on a one-to-one basis, or cash at the fair value of a Class A share. The determination of settlement method is at the option of MGP’s independent conflicts committee. MGM’s indirect ownership of these Operating Partnership units is recognized as a noncontrolling interest in MGP’s financial statements. A wholly owned subsidiary of MGP is the general partner of the Operating Partnership and operates and controls all of its business affairs. As a result, MGP consolidates the Operating Partnership and its subsidiaries. The Company is a publicly traded REIT primarily engaged through its investment in the Operating Partnership in the real property business, which consists of owning, acquiring and leasing large-scale destination entertainment and leisure resorts, whose tenants generally offer casino gaming, hotel, convention, dining, entertainment and retail. A wholly owned subsidiary of the Operating Partnership (the “Landlord”) leases all of its real estate properties back to a wholly owned subsidiary of MGM (the “Tenant”) under a master lease agreement (the “Master Lease”).

BUSINESS

Organization. MGM Growth Properties LLC (“MGP” or the “Company”) is a limited liability company that was organized in Delaware on October 23, 2015. MGP conducts its operations through MGM Growth Properties Operating Partnership LP (the “Operating Partnership”), a Delaware limited partnership that was formed on January 6, 2016 and acquired by MGP on April 25, 2016 (the “IPO Date”) in connection with MGP's Formation Transactions (defined below), including its initial public offering of Class A shares as discussed further below. When the Company files its initial federal income tax return for its taxable year ended December 31, 2016 in 2017, it intends to make an election to be treated as a real estate investment trust ("REIT").

MGM Resorts International (“MGM” or the “Parent”) is a Delaware corporation that acts largely as a holding company and, through its subsidiaries, owns and operates large-scale destination entertainment and leisure resorts. Prior to the IPO Date, the real estate assets of The Mirage, Mandalay Bay, Luxor, New York-New York, Monte Carlo, Excalibur, The Park, Gold Strike Tunica, MGM Grand Detroit and Beau Rivage (collectively, the “IPO Properties”), which comprised the Company’s real estate investments prior to the acquisition of Borgata (as described below), were owned and operated by MGM. On the IPO Date, MGM engaged in a series of transactions (the “Formation Transactions”) in which subsidiaries of MGM transferred the IPO Properties to newly formed subsidiaries and subsequently transferred 100% ownership interest in such subsidiaries to the Operating Partnership pursuant to a Master Contribution Agreement (the “MCA”) in exchange for Operating Partnership units representing limited partner interests in the Operating Partnership and the assumption by the Operating Partnership of $4 billion of indebtedness from the contributing MGM subsidiaries.

On the IPO Date, MGP completed the initial public offering of 57,500,000 of its Class A shares representing limited liability company interests at an initial offering price of $21.00 per share, inclusive of the full exercise by the underwriters of their option to purchase 7,500,000 Class A shares. MGP contributed the proceeds from its initial public offering to the Operating Partnership in exchange for 26.7% of the Operating Partnership units and the general partner interest in the Operating Partnership. Certain subsidiaries of MGM acquired the remaining 73.3% of the outstanding Operating Partnership units on such date. MGM retained ownership of MGP’s outstanding Class B share. The Class B share is a non-economic interest in MGP which does not provide its holder any rights to profits or losses or any rights to receive distributions from the operations of MGP or upon liquidation or winding up of MGP but which represents a majority of the voting power of MGP’s shares. As a result, MGP continues to be controlled by MGM through its majority voting rights, and is consolidated by MGM.

As of March 31, 2017, MGM owned 76.3% of the Operating Partnership units in the Operating Partnership. MGP owned the remaining 23.7% of the Operating Partnership units in the Operating Partnership. MGM’s Operating Partnership units are exchangeable into Class A shares of MGP on a one-to-one basis, or cash at the fair value of a Class A share. The determination of settlement method is at the option of MGP’s independent conflicts committee. MGM’s indirect ownership of these Operating Partnership units is recognized as a noncontrolling interest in MGP’s financial statements. A wholly owned subsidiary of MGP is the general partner of the Operating Partnership and operates and controls all of its business affairs. As a result, MGP consolidates the Operating Partnership and its subsidiaries.

The Company is a publicly traded REIT primarily engaged through its investment in the Operating Partnership in the real property business, which consists of owning, acquiring and leasing large-scale destination entertainment and leisure resorts, whose tenants generally offer casino gaming, hotel, convention, dining, entertainment and retail. A wholly owned subsidiary of the Operating Partnership (the “Landlord”) leases all of its real estate properties back to a wholly owned subsidiary of MGM (the “Tenant”) under a master lease agreement (the “Master Lease”).