Organization	12 Months Ended
Dec. 31, 2019
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Organization	NOTE 1 — ORGANIZATION Organization. MGM Resorts International (together with its consolidated subsidiaries, unless otherwise indicated or unless the context requires otherwise, the “Company”) is a Delaware corporation that acts largely as a holding company and, through subsidiaries, owns and operates casino resorts. As of December 31, 2019, the Company owns and operates the following integrated casino, hotel and entertainment resorts in Las Vegas, Nevada: Bellagio, MGM Grand Las Vegas, The Mirage, Mandalay Bay, Luxor, New York-New York, Park MGM, and Excalibur. Operations at MGM Grand Las Vegas include management of The Signature at MGM Grand Las Vegas. The Company owns and operates along with local investors, MGM Grand Detroit in Detroit, Michigan, MGM National Harbor in Prince George’s County, Maryland and MGM Springfield in Springfield, Massachusetts. The Company also owns and operates Borgata located on Renaissance Pointe in the Marina area of Atlantic City, New Jersey, Empire City in Yonkers, New York, MGM Northfield Park in Northfield Park, Ohio, and the following resorts in Mississippi: Beau Rivage in Biloxi and Gold Strike in Tunica. Additionally, the Company owns and operates the Park, a dining and entertainment district located between New York-New York and Park MGM, Shadow Creek, an exclusive world-class golf course located approximately ten miles north of its Las Vegas Strip Resorts, Primm Valley Golf Club at the California/Nevada state line and Fallen Oak golf course in Saucier, Mississippi. MGM Growth Properties LLC (“MGP”), a consolidated subsidiary of the Company, is organized as an umbrella partnership REIT (commonly referred to as an UPREIT) structure in which substantially all of its assets are owned by and substantially all of its businesses are conducted through MGM Growth Properties Operating Partnership LP (the “Operating Partnership”). MGP has two classes of authorized and outstanding voting common shares (collectively, the “shares”): Class A shares and a single Class B share. The Company owns MGP’s Class B share, which does not provide its holder any rights to profits or losses or any rights to receive distributions from operations of MGP or upon liquidation or winding up of MGP. MGP’s Class A shareholders are entitled to one vote per share, while the Company, as the owner of the 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%. The Company and MGP each hold Operating Partnership units representing limited partner interests in the Operating Partnership. The general partner of the Operating Partnership is a wholly-owned subsidiary of MGP. The Operating Partnership units held by the Company 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; refer to discussion below as to the agreement entered into in February 2020 which allows the Company to receive cash of up to $1.4 billion in exchange for its Operating Partnership units, should the Company elect to have its units redeemed for a 24 month period following the closing of the MGP BREIT Venture Transaction (as defined below). The Company and MGP’s ownership interest percentage in the Operating Partnership have varied based upon the transactions that MGP has completed, as discussed in Note 18. As of December 31, 2019, the Company owned 63.7% of the Operating Partnership units, and MGP held the remaining 36.3% ownership interest in the Operating Partnership. Pursuant to a master lease agreement between a subsidiary of the Company and a subsidiary of the Operating Partnership, the Company leases the real estate assets of The Mirage, Mandalay Bay, Luxor, New York-New York, Park MGM, Excalibur, The Park, Gold Strike Tunica, MGM Grand Detroit, Beau Rivage, Borgata, Empire City, MGM National Harbor, and MGM Northfield Park. As discussed further below, pursuant to a lease agreement between a subsidiary of the Company and the venture with Blackstone Real Estate Income Trust, Inc. (“BREIT), the Company leases the real estate assets of Bellagio from the Bellagio BREIT Venture. In July 2018, MGP acquired the membership interests of Northfield Park Associates, LLC (“Northfield”), a company that owned the real estate assets and operations of the Hard Rock Rocksino Northfield Park (“Northfield Acquisition”). In April 2019, the Company acquired the membership interests of Northfield from MGP and MGP retained the associated real estate assets. The Company then rebranded the property to MGM Northfield Park, which was then added to the existing master lease between the Company and MGP. Refer to Note 4 and Note 18 for additional information. In January 2019, the Company acquired the real property and operations associated with the Empire City Casino's race track and casino ("Empire City"). Subsequently, MGP acquired the developed real property associated with Empire City from the Company and Empire City was added to the existing master lease between the Company and MGP. Refer to Note 4 and Note 18 for additional information. In March 2019, the Company entered into an amendment to the existing master lease with respect to investments made by the Company related to improvements at Park MGM and NoMad Las Vegas. Refer to Note 18 for additional information on this transaction. On November 15, 2019, the Company formed a venture (the “Bellagio BREIT Venture”) with a subsidiary of BREIT, which acquired the Bellagio real estate assets from the Company and entered into a lease agreement to lease the real estate assets back to the Company. As consideration for the real estate assets, the Company received total consideration of $4.25 billion, which consisted of a 5% equity interest in the venture and cash of approximately $4.2 billion. The Company recorded a gain of $2.7 billion related to sale of the Bellagio real estate assets, recorded as “Gain on Bellagio transaction,” which primarily reflects the difference between the carrying value of the real estate assets sold and the consideration received. The Company also provides a shortfall guarantee of the principal amount of indebtedness of the debt of the Bellagio BREIT Venture’s $3.01 billion of debt (and any interest accrued and unpaid thereon). Refer to Note 11 and Note 12 for additional information relating to the lease and guarantee, respectively. In December 2019, the Company completed the sale of Circus Circus Las Vegas and adjacent land. See Note 16 for additional information related to this transaction. On February 14, 2020, the Company completed a series of transactions (collectively the “MGP BREIT Venture Transaction”) pursuant to which the real estate assets of MGM Grand Las Vegas and Mandalay Bay (including Mandalay Place) were contributed to a newly formed entity (“MGP BREIT Venture”), owned 50.1% by the Operating Partnership and 49.9% by a subsidiary of BREIT. In exchange for the contribution of the real estate assets, the Company received total consideration of $4.6 billion, which was comprised of $2.5 billion of cash, $1.3 billion of the Operating Partnership’s secured indebtedness assumed by MGP BREIT Venture, and the Operating Partnership’s 50.1% equity interest in the MGP BREIT Venture. In addition, the Operating Partnership issued approximately 3 million Operating Partnership units to the Company representing 5% of the equity value of MGP BREIT Venture. In connection with the transactions, the Company provided a shortfall guaranty of the principal amount of indebtedness of the MGP BREIT Venture (and any interest accrued and unpaid thereon). On the closing date, BREIT also purchased approximately 5 million MGP Class A shares for $150 million. In connection with the transactions, MGP BREIT Venture entered into a lease with the Company for the real estate assets of Mandalay Bay and MGM Grand Las Vegas. The lease provides for a term of thirty years with two ten-year renewal options and has an initial annual base rent of $292 million, escalating annually at a rate of 2% per annum for the first fifteen years and thereafter equal to the greater of 2% and the CPI increase during the prior year subject to a cap of 3%. In addition, the lease will require the Company to spend 3.5% of net revenues over a rolling five-year period at the properties on capital expenditures and for the Company to comply with certain financial covenants, which, if not met, will require the Company to maintain cash security or provide one or more letters of credit in favor of the landlord in an amount equal to the rent for the succeeding one-year period. In connection with the MGP BREIT Venture Transaction, the existing master lease with MGP was modified to remove the Mandalay Bay property and the annual rent under the MGP master lease was reduced by $133 million. The real estate assets of Mandalay Bay and MGM Grand Las Vegas were classified as held and used in the consolidated balance sheets at December 31, 2019 as the held for sale criteria were not met as of the balance sheet date. Also, on January 14, 2020, the Company, the Operating Partnership, and MGP entered into an agreement for the Operating Partnership to waive its right to issue MGP Class A shares, in lieu of cash, to the Company in connection with the Company exercising its right to require the Operating Partnership to redeem Operating Partnership units that the Company holds, at a price per unit equal to a 3% discount to the applicable cash amount as calculated in accordance with the operating agreement. The waiver terminates on the earlier of 24 months following the closing of the MGP BREIT Venture Transaction and the Company receiving cash proceeds of $1.4 billion as consideration for the redemption of the Company’s Operating Partnership units. The Company has an approximate 56% controlling interest in MGM China Holdings Limited (together with its subsidiaries, “MGM China”), which owns MGM Grand Paradise, S.A. (“MGM Grand Paradise”). MGM Grand Paradise owns and operates the MGM Macau resort and casino and MGM Cotai, an integrated casino, hotel and entertainment resort located on the Cotai Strip in Macau, as well as the related gaming subconcession and land concessions. In early 2020, the rapid spread of a respiratory illness caused by a novel coronavirus (Covid-19) identified as originating in Wuhan, Hubei Province, China led to certain actions taken by the Chinese government and other countries to attempt to mitigate the spread of the virus. Among the actions taken were the implementation of travel restrictions, such as the temporary suspension of China’s visa scheme that permits mainland Chinese to travel to Macau, the temporary suspension of all ferry service from Hong Kong to Macau, the suspension of casino operations in Macau for a 15-day period that commenced on February 5, 2020, and restrictions placed on inbound travel from mainland China to the U.S. Although operations at MGM Macau and MGM Cotai resumed on February 20, 2020, there are currently limits on the number of gaming tables allowed to operate and restrictions on the number of seats available at each table, and the temporary suspension of the visa scheme and ferry service to Macau remains in place. Due to the reduced travel to the Company's Macau properties as a result of these measures, the Company expects a decline in the operating results of its MGM China operating segments. Additionally, to the extent that the virus impacts the willingness or ability of customers to travel to the Company’s properties in the United States (due to travel restrictions, or otherwise), the Company’s domestic results of operations could also be negatively impacted. The Company is continuing to evaluate the nature and extent of the impacts to its business, which could have a material effect on its consolidated operating results for the first quarter of 2020 and potentially thereafter. Given the uncertain nature of these circumstances, the related impact on results of operations, cash flows and financial condition cannot be reasonably estimated at this time. The Company owns 50% of and manages CityCenter Holdings, LLC (“CityCenter”), located between Bellagio and Park MGM. The other 50% of CityCenter is owned by Infinity World Development Corp, a wholly owned subsidiary of Dubai World, a Dubai, United Arab Emirates government decree entity. CityCenter consists of Aria, an integrated casino, hotel and entertainment resort; and Vdara, a luxury condominium-hotel. See Note 6 and Note 18 for additional information related to CityCenter. The Company has three reportable segments: Las Vegas Strip Resorts, Regional Operations and MGM China. See Note 17 for additional information about the Company’s segments.

Organization

12 Months Ended

Dec. 31, 2019

Organization Consolidation And Presentation Of Financial Statements [Abstract]

NOTE 1 — ORGANIZATION

Organization. MGM Resorts International (together with its consolidated subsidiaries, unless otherwise indicated or unless the context requires otherwise, the “Company”) is a Delaware corporation that acts largely as a holding company and, through subsidiaries, owns and operates casino resorts.

As of December 31, 2019, the Company owns and operates the following integrated casino, hotel and entertainment resorts in Las Vegas, Nevada: Bellagio, MGM Grand Las Vegas, The Mirage, Mandalay Bay, Luxor, New York-New York, Park MGM, and Excalibur. Operations at MGM Grand Las Vegas include management of The Signature at MGM Grand Las Vegas. The Company owns and operates along with local investors, MGM Grand Detroit in Detroit, Michigan, MGM National Harbor in Prince George’s County, Maryland and MGM Springfield in Springfield, Massachusetts. The Company also owns and operates Borgata located on Renaissance Pointe in the Marina area of Atlantic City, New Jersey, Empire City in Yonkers, New York, MGM Northfield Park in Northfield Park, Ohio, and the following resorts in Mississippi: Beau Rivage in Biloxi and Gold Strike in Tunica. Additionally, the Company owns and operates the Park, a dining and entertainment district located between New York-New York and Park MGM, Shadow Creek, an exclusive world-class golf course located approximately ten miles north of its Las Vegas Strip Resorts, Primm Valley Golf Club at the California/Nevada state line and Fallen Oak golf course in Saucier, Mississippi.

MGM Growth Properties LLC (“MGP”), a consolidated subsidiary of the Company, is organized as an umbrella partnership REIT (commonly referred to as an UPREIT) structure in which substantially all of its assets are owned by and substantially all of its businesses are conducted through MGM Growth Properties Operating Partnership LP (the “Operating Partnership”). MGP has two classes of authorized and outstanding voting common shares (collectively, the “shares”): Class A shares and a single Class B share. The Company owns MGP’s Class B share, which does not provide its holder any rights to profits or losses or any rights to receive distributions from operations of MGP or upon liquidation or winding up of MGP. MGP’s Class A shareholders are entitled to one vote per share, while the Company, as the owner of the 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%. The Company and MGP each hold Operating Partnership units representing limited partner interests in the Operating Partnership. The general partner of the Operating Partnership is a wholly-owned subsidiary of MGP. The Operating Partnership units held by the Company 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; refer to discussion below as to the agreement entered into in February 2020 which allows the Company to receive cash of up to $1.4 billion in exchange for its Operating Partnership units, should the Company elect to have its units redeemed for a 24 month period following the closing of the MGP BREIT Venture Transaction (as defined below). The Company and MGP’s ownership interest percentage in the Operating Partnership have varied based upon the transactions that MGP has completed, as discussed in Note 18. As of December 31, 2019, the Company owned 63.7% of the Operating Partnership units, and MGP held the remaining 36.3% ownership interest in the Operating Partnership.

Pursuant to a master lease agreement between a subsidiary of the Company and a subsidiary of the Operating Partnership, the Company leases the real estate assets of The Mirage, Mandalay Bay, Luxor, New York-New York, Park MGM, Excalibur, The Park, Gold Strike Tunica, MGM Grand Detroit, Beau Rivage, Borgata, Empire City, MGM National Harbor, and MGM Northfield Park. As discussed further below, pursuant to a lease agreement between a subsidiary of the Company and the venture with Blackstone Real Estate Income Trust, Inc. (“BREIT), the Company leases the real estate assets of Bellagio from the Bellagio BREIT Venture.

In July 2018, MGP acquired the membership interests of Northfield Park Associates, LLC (“Northfield”), a company that owned the real estate assets and operations of the Hard Rock Rocksino Northfield Park (“Northfield Acquisition”). In April 2019, the Company acquired the membership interests of Northfield from MGP and MGP retained the associated real estate assets. The Company then rebranded the property to MGM Northfield Park, which was then added to the existing master lease between the Company and MGP. Refer to Note 4 and Note 18 for additional information.

In January 2019, the Company acquired the real property and operations associated with the Empire City Casino's race track and casino ("Empire City"). Subsequently, MGP acquired the developed real property associated with Empire City from the Company and Empire City was added to the existing master lease between the Company and MGP. Refer to Note 4 and Note 18 for additional information.

In March 2019, the Company entered into an amendment to the existing master lease with respect to investments made by the Company related to improvements at Park MGM and NoMad Las Vegas. Refer to Note 18 for additional information on this transaction.

On November 15, 2019, the Company formed a venture (the “Bellagio BREIT Venture”) with a subsidiary of BREIT, which acquired the Bellagio real estate assets from the Company and entered into a lease agreement to lease the real estate assets back to the Company. As consideration for the real estate assets, the Company received total consideration of $4.25 billion, which consisted of a 5% equity interest in the venture and cash of approximately $4.2 billion. The Company recorded a gain of $2.7 billion related to sale of the Bellagio real estate assets, recorded as “Gain on Bellagio transaction,” which primarily reflects the difference between the carrying value of the real estate assets sold and the consideration received. The Company also provides a shortfall guarantee of the principal amount of indebtedness of the debt of the Bellagio BREIT Venture’s $3.01 billion of debt (and any interest accrued and unpaid thereon). Refer to Note 11 and Note 12 for additional information relating to the lease and guarantee, respectively.

In December 2019, the Company completed the sale of Circus Circus Las Vegas and adjacent land. See Note 16 for additional information related to this transaction.

On February 14, 2020, the Company completed a series of transactions (collectively the “MGP BREIT Venture Transaction”) pursuant to which the real estate assets of MGM Grand Las Vegas and Mandalay Bay (including Mandalay Place) were contributed to a newly formed entity (“MGP BREIT Venture”), owned 50.1% by the Operating Partnership and 49.9% by a subsidiary of BREIT. In exchange for the contribution of the real estate assets, the Company received total consideration of $4.6 billion, which was comprised of $2.5 billion of cash, $1.3 billion of the Operating Partnership’s secured indebtedness assumed by MGP BREIT Venture, and the Operating Partnership’s 50.1% equity interest in the MGP BREIT Venture. In addition, the Operating Partnership issued approximately 3 million Operating Partnership units to the Company representing 5% of the equity value of MGP BREIT Venture. In connection with the transactions, the Company provided a shortfall guaranty of the principal amount of indebtedness of the MGP BREIT Venture (and any interest accrued and unpaid thereon). On the closing date, BREIT also purchased approximately 5 million MGP Class A shares for $150 million.

In connection with the transactions, MGP BREIT Venture entered into a lease with the Company for the real estate assets of Mandalay Bay and MGM Grand Las Vegas. The lease provides for a term of thirty years with two ten-year renewal options and has an initial annual base rent of $292 million, escalating annually at a rate of 2% per annum for the first fifteen years and thereafter equal to the greater of 2% and the CPI increase during the prior year subject to a cap of 3%. In addition, the lease will require the Company to spend 3.5% of net revenues over a rolling five-year period at the properties on capital expenditures and for the Company to comply with certain financial covenants, which, if not met, will require the Company to maintain cash security or provide one or more letters of credit in favor of the landlord in an amount equal to the rent for the succeeding one-year period.

In connection with the MGP BREIT Venture Transaction, the existing master lease with MGP was modified to remove the Mandalay Bay property and the annual rent under the MGP master lease was reduced by $133 million.

The real estate assets of Mandalay Bay and MGM Grand Las Vegas were classified as held and used in the consolidated balance sheets at December 31, 2019 as the held for sale criteria were not met as of the balance sheet date.

Also, on January 14, 2020, the Company, the Operating Partnership, and MGP entered into an agreement for the Operating Partnership to waive its right to issue MGP Class A shares, in lieu of cash, to the Company in connection with the Company exercising its right to require the Operating Partnership to redeem Operating Partnership units that the Company holds, at a price per unit equal to a 3% discount to the applicable cash amount as calculated in accordance with the operating agreement. The waiver terminates on the earlier of 24 months following the closing of the MGP BREIT Venture Transaction and the Company receiving cash proceeds of $1.4 billion as consideration for the redemption of the Company’s Operating Partnership units.

The Company has an approximate 56% controlling interest in MGM China Holdings Limited (together with its subsidiaries, “MGM China”), which owns MGM Grand Paradise, S.A. (“MGM Grand Paradise”). MGM Grand Paradise owns and operates the MGM Macau resort and casino and MGM Cotai, an integrated casino, hotel and entertainment resort located on the Cotai Strip in Macau, as well as the related gaming subconcession and land concessions.

In early 2020, the rapid spread of a respiratory illness caused by a novel coronavirus (Covid-19) identified as originating in Wuhan, Hubei Province, China led to certain actions taken by the Chinese government and other countries to attempt to mitigate the spread of the virus. Among the actions taken were the implementation of travel restrictions, such as the temporary suspension of China’s visa scheme that permits mainland Chinese to travel to Macau, the temporary suspension of all ferry service from Hong Kong to Macau, the suspension of casino operations in Macau for a 15-day period that commenced on February 5, 2020, and restrictions placed on inbound travel from mainland China to the U.S. Although operations at MGM Macau and MGM Cotai resumed on February 20, 2020, there are currently limits on the number of gaming tables allowed to operate and restrictions on the number of seats available at each table, and the temporary suspension of the visa scheme and ferry service to Macau remains in place. Due to the reduced travel to the Company's Macau properties as a result of these measures, the Company expects a decline in the operating results of its MGM

China operating segments. Additionally, to the extent that the virus impacts the willingness or ability of customers to travel to the Company’s properties in the United States (due to travel restrictions, or otherwise), the Company’s domestic results of operations could also be negatively impacted. The Company is continuing to evaluate the nature and extent of the impacts to its business, which could have a material effect on its consolidated operating results for the first quarter of 2020 and potentially thereafter. Given the uncertain nature of these circumstances, the related impact on results of operations, cash flows and financial condition cannot be reasonably estimated at this time.

The Company owns 50% of and manages CityCenter Holdings, LLC (“CityCenter”), located between Bellagio and Park MGM. The other 50% of CityCenter is owned by Infinity World Development Corp, a wholly owned subsidiary of Dubai World, a Dubai, United Arab Emirates government decree entity. CityCenter consists of Aria, an integrated casino, hotel and entertainment resort; and Vdara, a luxury condominium-hotel. See Note 6 and Note 18 for additional information related to CityCenter.

The Company has three reportable segments: Las Vegas Strip Resorts, Regional Operations and MGM China. See Note 17 for additional information about the Company’s segments.