Organization	9 Months Ended
Organization	Sep. 30, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization	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 September 30, 2021, the Company owns and operates the following integrated casino, hotel and entertainment resorts in Las Vegas, Nevada: Aria (including Vdara), Bellagio, MGM Grand Las Vegas (including The Signature), The Mirage, Mandalay Bay, Luxor, New York-New York, Park MGM, and Excalibur. The Company owns, along with local investors, and operates 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, 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 Market Value of a Class A share (as defined in the Operating Partnership’s partnership agreement). The determination of settlement method is at the option of MGP’s independent conflicts committee. As of September 30, 2021, the Company owned 41.6% of the Operating Partnership units, and MGP held the remaining 58.4% 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, 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. Pursuant to a lease agreement between a subsidiary of the Company and a venture that is 5% owned by such subsidiary and 95% owned by a subsidiary of Blackstone Real Estate Income Trust, Inc. (“BREIT”, and such venture, the “Bellagio BREIT Venture”), the Company leases the real estate assets of Bellagio. Additionally, pursuant to a lease agreement between a subsidiary of the Company and a venture that is 50.1% owned by a subsidiary of the Operating Partnership and 49.9% by a subsidiary of BREIT (such venture, the “MGP BREIT Venture”), the Company leases the real estate assets of Mandalay Bay and MGM Grand Las Vegas. Refer to Note 8 for further discussion of the leases. On August 4, 2021, the Company entered into an agreement with VICI Properties, Inc. (“VICI”) and MGP whereby VICI will acquire MGP in a stock-for-stock transaction (such transaction, the “VICI Transaction”). Pursuant to the agreement, MGP Class A shareholders will receive 1.366 shares of newly issued VICI stock in exchange for each MGP Class A share outstanding and the Company will receive 1.366 units of the new VICI operating partnership (“VICI OP”) in exchange for each Operating Partnership unit held by the Company. The fixed exchange ratio represents an agreed upon price of $43 per share of MGP Class A share to the five-day volume weighted average price of VICI stock as of the close of business on July 30, 2021. In connection with the exchange, VICI OP will redeem the majority of the Company’s VICI OP units for cash consideration of $4.4 billion, with the Company retaining an approximate $370 million ownership interest in the VICI OP (based upon the close price of VICI stock as of August 3, 2021). MGP’s Class B share that is held by the Company will be cancelled. As part of the transaction, the Company will enter into an amended and restated master lease with VICI. The new master lease will have an initial term of 25 years, with three ten-year renewals, and initial annual rent of $860 million, escalating annually at a rate of 2.0% per annum for the first ten years and thereafter equal to the greater of 2% and the CPI increase during the prior year subject to a cap of 3%. The transaction is expected to close in the first half of 2022, subject to customary closing conditions, regulatory approvals, and approval by VICI stockholders (which was obtained on October 29, 2021). On September 27, 2021, the Company completed the acquisition of the 50% ownership interest in CityCenter Holdings, LLC ("CityCenter") held by Infinity World Development Corp ("Infinity World"), a wholly owned subsidiary of Dubai World, a Dubai, United Arab Emirates government decree entity. CityCenter is located between Bellagio and Park MGM and consists of Aria, an integrated casino, hotel and entertainment resort; and Vdara, a luxury condominium-hotel. Refer to Note 3 for additional information on this acquisition. On September 28, 2021, the Company sold the real estate assets of Aria and Vdara to an affiliate of Blackstone Group Inc. ("Blackstone") for cash consideration of $3.89 billion and entered into a lease through which the real property is leased back to a subsidiary of the Company, as further discussed in Note 8. On September 26, 2021, the Company entered into an agreement to acquire the operations of The Cosmopolitan of Las Vegas ("The Cosmopolitan") for cash consideration of $1.625 billion, subject to customary working capital adjustments. Additionally, the Company will enter into a lease agreement for the real estate assets of The Cosmopolitan. The Cosmopolitan lease will have an initial term of 30 years with three subsequent 10-year renewal periods, exercisable at the Company’s option. The initial term of the lease provides for an initial annual cash rent of $200 million with a fixed 2% escalator for the first fifteen years, and thereafter, an escalator equal to the greater of 2% and the CPI increase during the prior year, subject to a cap of 3%. Additionally, the lease will require the Company to spend a specified percentage of net revenues over a rolling five-year period at the property on capital expenditures and for the Company to comply with certain financial covenants, which, if not met, would require the Company to maintain cash security or a letter of credit in favor of the landlord in an amount equal to rent for the succeeding one-year period. The transaction is expected to close in the first half of 2022, subject to regulatory approvals and other customary closing conditions. On October 29, 2021, MGP acquired the real estate assets of MGM Springfield from the Company and MGM Springfield was added to the MGP master lease between the Company and MGP through which MGP leases back the real property to a subsidiary of the Company. Transactions with MGP, including transactions under the MGP master lease, have been eliminated in the Company’s consolidation of MGP. Refer to Note 13 for additional information. 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 and MGM Cotai, two integrated casino, hotel and entertainment resorts in Macau, as well as the related gaming subconcession and land concessions. Gaming in Macau is currently administered by the Macau Government through concessions awarded to three different concessionaires and three subconcessionaires, of which a subsidiary of MGM China is a subconcessionaire. Pursuant to the Macau gaming law, upon reaching the maximum duration of twenty years, the term of the concessions may be extended one or more times by order of the Chief Executive, which period may not exceed, in total, five years. In 2019, the expiration of MGM China’s subconcession term was extended from March 31, 2020 to June 26, 2022, consistent with the expiration of the other concessionaires and subconcessionaires. On September 14, 2021, the Macau government released a consultation paper on the revision of the Macau gaming law and commenced a 45-day public consultation process soliciting feedback. Unless the subconcession is extended or replaced with a similar governmental license, or legislation with regard to reversion of casino premises is amended, the casino area premises and gaming-related equipment subject to reversion will automatically be transferred to the Macau Government upon expiration, and MGM China will cease to generate any revenues from such gaming operations. In addition, certain events relating to the loss, termination, rescission, revocation or modification of MGM China’s gaming subconcession in Macau, where such events have a material adverse effect on the financial condition, business, properties, or results of operations of MGM China, taken as a whole, may result in a special put option triggering event under MGM China’s senior notes and in an event of default under MGM China’s revolving credit facilities. MGM China continues to closely monitor developments regarding the gaming concessions retendering or extension including the issuance of guidance by the Macau Government. MGM China intends to respond proactively to all relevant Macau Government requirements when known relating to the gaming subconcession extension or retendering. The Company cannot provide any assurance that the gaming subconcession will be extended beyond the current term; however, management believes that the gaming subconcession will be extended or replaced with a similar governmental license. The Company owns 50% of BetMGM, LLC (“BetMGM”), which provides online sports betting and iGaming in certain jurisdictions in the United States. The other 50% of BetMGM is owned by Entain plc. The Company has three reportable segments: Las Vegas Strip Resorts, Regional Operations and MGM China. See Note 12 for additional information about the Company’s segments. Financial Impact of COVID-19. The spread of the novel 2019 coronavirus (“COVID-19”) and developments surrounding the global pandemic have had a significant impact on the Company’s business, financial condition, results of operations and cash flows in 2020 and 2021 and may potentially thereafter. In March 2020, all of the Company’s domestic properties were temporarily closed pursuant to state and local government restrictions imposed as a result of COVID-19. Throughout the second and third quarters of 2020, all of the Company’s properties that were temporarily closed re-opened to the public, but continued to operate without certain amenities and subject to certain occupancy limitations, with restrictions varying by jurisdiction and with further temporary re-closures and re-openings occurring for the Company’s properties or portions thereof into the first quarter of 2021. Upon re-opening of the properties, the Company implemented certain measures to mitigate the spread of COVID-19, including limitations on the number of gaming tables allowed to operate and on the number of seats at each table game, as well as slot machine spacing, temperature checks, mask protection, limitations on restaurant capacity, entertainment events and conventions as well as other measures to enforce social distancing. Beginning in the latter part of the first quarter of 2021 and continuing into the second quarter of 2021, the Company’s domestic jurisdictions eased and removed prior operating restrictions, including capacity and occupancy limits as well as social distancing policies. However, certain operations and amenities are limited or constrained due to available staffing and/or mid-week visitation levels, and in July 2021, certain jurisdictions reinstated mask protection guidelines as a result of the emergence and spread of certain COVID-19 variants. Although all of the Company’s properties have re-opened, in light of the unpredictable nature of the pandemic, including the emergence and spread of COVID-19 variants, the properties may be subject to temporary complete or partial shutdowns in the future. At this time, the Company cannot predict whether jurisdictions, states or the federal government will adopt similar or more restrictive measures in the future than in the past, including stay-at-home orders or the temporary closure of all or a portion of the Company’s properties. In Macau, following a temporary closure of the Company’s properties on February 5, 2020, operations resumed on February 20, 2020, subject to certain health safeguards, such as limiting the number of seats available at each table game, slot machine spacing, reduced operating hours at a number of restaurants and bars, temperature checks, and mask protection. Although the issuance of tourist visas (including the individual visit scheme) for residents of Zhuhai, Guangdong Province and all other provinces in mainland China to travel to Macau resumed on August 12, 2020, August 26, 2020 and September 23, 2020, respectively, several travel and entry restrictions in Macau, Hong Kong and mainland China remain in place (including the temporary suspension of ferry services from Hong Kong to Macau, a negative nucleic acid test result, and mandatory quarantine requirements for visitors from Hong Kong and Taiwan, and bans on entry or enhanced quarantine requirements on other visitors into Macau), which have significantly impacted visitation to the Company’s Macau properties. In recent months, local COVID-19 cases were identified in Macau. Upon such occurrences, a state of immediate prevention was declared and mass mandatory nucleic acid testing was imposed in Macau, the validity period of negative test results for re-entry into mainland China was shortened and quarantine requirements were imposed, certain events were cancelled or suspended, and in some instances certain entertainment and leisure facilities were closed throughout Macau. Although gaming and hotel operations have remained open during these states of immediate prevention, such measures have had a negative effect on the Company's operations and it is uncertain whether further closures, including the closure of the Company’s properties, or travel restrictions to Macau will be implemented if additional local COVID-19 cases are identified.