MGM Resorts International (MGM) 10-Q 3 Aug 18 2018 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2018	Aug. 01, 2018
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2018
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q2
Trading Symbol	MGM
Entity Registrant Name	MGM Resorts International
Entity Central Index Key	789,570
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		537,902,116

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Current assets
Cash and cash equivalents	$ 1,272,872	$ 1,499,995
Accounts receivable, net	497,350	542,273
Inventories	109,130	102,292
Income tax receivable	23,124	42,551
Prepaid expenses and other	180,640	189,244
Total current assets	2,083,116	2,376,355
Property and equipment, net	19,863,078	19,635,459
Other assets
Investments in and advances to unconsolidated affiliates	882,940	1,033,297
Goodwill	1,801,034	1,806,531
Other intangible assets, net	3,776,770	3,877,960
Other long-term assets, net	570,222	430,440
Total other assets	7,030,966	7,148,228
Total assets	28,977,160	29,160,042
Current liabilities
Accounts payable	268,140	255,028
Construction payable	418,945	474,807
Current portion of long-term debt, net	0	158,042
Accrued interest on long-term debt	140,184	135,785
Other accrued liabilities	2,237,524	2,114,635
Total current liabilities	3,064,793	3,138,297
Deferred income taxes, net	1,226,397	1,295,375
Long-term debt, net	13,513,341	12,751,052
Other long-term obligations	245,720	284,416
Commitments and contingencies (Note 6)
Redeemable noncontrolling interests	86,968	79,778
Stockholders' equity
Common stock, $.01 par value: authorized 1,000,000,000 shares, issued and outstanding 537,866,780 and 566,275,789 shares	5,379	5,663
Capital in excess of par value	4,413,814	5,357,709
Retained earnings	2,431,186	2,217,299
Accumulated other comprehensive loss	(3,237)	(3,610)
Total MGM Resorts International stockholders' equity	6,847,142	7,577,061
Noncontrolling interests	3,992,799	4,034,063
Total stockholders' equity	10,839,941	11,611,124
Total liabilities and stockholders' equity	$ 28,977,160	$ 29,160,042

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - $ / shares	Jun. 30, 2018	Dec. 31, 2017
Statement Of Financial Position [Abstract]
Common stock, par value	$ 0.01	$ 0.01
Common stock, authorized shares	1,000,000,000	1,000,000,000
Common stock, issued shares	537,866,780	566,275,789
Common stock, outstanding shares	537,866,780	566,275,789

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Revenues
Revenues	$ 2,858,695	$ 2,652,133	$ 5,680,932	$ 5,369,699
Expenses
General and administrative	438,453	354,349	856,343	743,137
Corporate expense	103,438	79,448	202,947	152,580
Preopening and start-up expenses	19,077	21,093	85,994	36,159
Property transactions, net	16,970	13,243	22,868	14,939
NV Energy exit expense	0	(40,629)	0	(40,629)
Depreciation and amortization	296,208	244,754	565,030	494,523
Total expenses	2,543,560	2,192,874	5,037,806	4,453,695
Income from unconsolidated affiliates	47,940	40,639	79,706	80,405
Operating income	363,075	499,898	722,832	996,409
Non-operating income (expense)
Interest expense, net of amounts capitalized	(181,493)	(174,058)	(349,402)	(348,117)
Non-operating items from unconsolidated affiliates	(11,068)	(10,556)	(20,078)	(17,477)
Other, net	(6,381)	(751)	(8,297)	(1,568)
Total non-operating income (expense)	(198,942)	(185,365)	(377,777)	(367,162)
Income before income taxes	164,133	314,533	345,055	629,247
Benefit (provision) for income taxes	(23,710)	(73,660)	61,669	(135,800)
Net income	140,423	240,873	406,724	493,447
Less: Net income attributable to noncontrolling interests	(16,646)	(31,009)	(59,503)	(77,171)
Net income attributable to MGM Resorts International	$ 123,777	$ 209,864	$ 347,221	$ 416,276
Net income per share of common stock attributable to MGM Resorts International
Basic	$ 0.21	$ 0.36	$ 0.60	$ 0.72
Diluted	$ 0.21	$ 0.36	$ 0.60	$ 0.72
Weighted average common shares outstanding
Basic	548,433	574,931	556,586	574,668
Diluted	554,339	582,056	563,108	581,112
Dividends declared per common share	$ 0.12	$ 0.11	$ 0.24	$ 0.22
Casino [Member]
Revenues
Revenues	$ 1,332,214	$ 1,172,758	$ 2,726,530	$ 2,444,232
Expenses
Expenses	741,531	627,361	1,504,180	1,294,296
Rooms [Member]
Revenues
Revenues	563,871	541,755	1,103,351	1,100,567
Expenses
Expenses	202,968	187,116	392,026	375,785
Food and Beverage [Member]
Revenues
Revenues	494,808	485,098	950,219	954,434
Expenses
Expenses	376,985	363,011	730,374	716,173
Entertainment, Retail and Other [Member]
Revenues
Revenues	363,242	353,230	692,992	670,959
Expenses
Expenses	243,370	243,836	470,204	467,225
Reimbursed Costs [Member]
Revenues
Revenues	104,560	99,292	207,840	199,507
Expenses
Expenses	$ 104,560	$ 99,292	$ 207,840	$ 199,507

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 140,423	$ 240,873	$ 406,724	$ 493,447
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustment	1,400	(25,376)	(22,752)	(38,309)
Unrealized gain (loss) on cash flow hedges	5,335	(3,323)	19,191	(3,957)
Other comprehensive income (loss)	6,735	(28,699)	(3,561)	(42,266)
Comprehensive income	147,158	212,174	403,163	451,181
Less: Comprehensive income attributable to noncontrolling interests	(19,138)	(18,675)	(55,569)	(59,106)
Comprehensive income attributable to MGM Resorts International	$ 128,020	$ 193,499	$ 347,594	$ 392,075

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Cash flows from operating activities
Net income	$ 406,724	$ 493,447
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	565,030	494,523
Amortization of debt discounts, premiums and issuance costs	19,956	17,717
Loss on retirement of long-term debt	2,636	798
Provision for doubtful accounts	17,324	10,361
Stock-based compensation	33,911	30,965
Property transactions, net	22,868	14,939
Income from unconsolidated affiliates	(56,307)	(62,928)
Distributions from unconsolidated affiliates	9,650	7,100
Deferred income taxes	(70,986)	12,465
Change in operating assets and liabilities:
Accounts receivable	26,157	63,471
Inventories	(6,928)	(5,469)
Income taxes receivable and payable, net	19,428	(18,014)
Prepaid expenses and other	5,415	(6,516)
Prepaid Cotai land concession premium	3,440	(11,216)
Accounts payable and accrued liabilities	116,060	(100,648)
Other	(21,227)	(1,869)
Net cash provided by operating activities	1,093,151	939,126
Cash flows from investing activities
Capital expenditures, net of construction payable	(861,761)	(872,610)
Dispositions of property and equipment	440	293
Investments in unconsolidated affiliates	(2,503)	(4,773)
Distributions from unconsolidated affiliates in excess of cumulative earnings	200,000	300,000
Other	(15,609)	(15,688)
Net cash used in investing activities	(679,433)	(592,778)
Cash flows from financing activities
Net borrowings (repayments) under bank credit facilities – maturities of 90 days or less	(360,874)	204,852
Issuance of long-term debt	1,000,000	0
Debt issuance costs	(64,777)	(5,403)
Dividends paid to common shareholders	(133,334)	(126,429)
Distributions to noncontrolling interest owners	(101,407)	(89,872)
Purchases of common stock	(957,264)	0
Retirement of debentures	(2,265)	0
Other	(18,230)	(16,093)
Net cash used in financing activities	(638,151)	(32,945)
Effect of exchange rate on cash	(2,690)	(2,922)
Cash and cash equivalents
Net increase (decrease) for the period	(227,123)	310,481
Balance, beginning of period	1,499,995	1,446,581
Balance, end of period	1,272,872	1,757,062
Supplemental cash flow disclosures
Interest paid, net of amounts capitalized	324,779	341,990
Federal, state and foreign income taxes paid (received), net of refunds	$ (10,667)	$ 140,605

Organization

Organization	6 Months Ended
	Jun. 30, 2018
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. 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 (which had previously been branded as Monte Carlo prior to May 2018), Excalibur and Circus Circus Las Vegas. Operations at MGM Grand Las Vegas include management of The Signature at MGM Grand Las Vegas, a condominium-hotel consisting of three towers. The Company operates and, along with local investors, owns MGM Grand Detroit in Detroit, Michigan and MGM National Harbor in Prince George’s County, Maryland. The Company also owns and operates Borgata located on Renaissance Pointe in the Marina area of Atlantic City, New Jersey 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 all of its assets are owned by and all of its businesses are conducted through MGM Growth Properties Operating Partnership LP (the “Operating Partnership”), its subsidiary. 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. As of June 30, 2018, the Company owned 73.3% of the Operating Partnership units and MGP held the remaining 26.7% of the Operating Partnership units. Pursuant to a master lease agreement between a subsidiary of the Company (the “tenant”) and a subsidiary of the Operating Partnership (the “landlord”), the tenant 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, and MGM National Harbor from the landlord. On April 4, 2018, MGP entered into an agreement with Milstein Entertainment LLC to acquire the membership interests of Northfield Park Associates, LLC, an Ohio limited liability company that owns the real estate assets and operations of the Hard Rock Rocksino Northfield Park (“Rocksino”) for approximately $1.06 billion, and on July 6, 2018, MGP completed the acquisition of the Rocksino. MGP funded the acquisition through a $200 million draw on the Operating Partnership’s delayed draw Term Loan A, a $655 million draw under the Operating Partnership’s revolving credit facility with the remainder of the purchase price paid with cash on hand. Simultaneously with the close, MGP entered into a new agreement with Hard Rock to continue to serve as the manager of the property. The Company has an approximate 56% controlling interest in 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 the related gaming subconcession and land concessions as well as MGM Cotai, an integrated casino, hotel and entertainment resort located on the Cotai Strip in Macau that opened on February 13, 2018. 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. In addition, CityCenter features residential units in the Residences at Veer. In March 2018, a subsidiary of CityCenter entered into an agreement for the sale of the Mandarin Oriental Las Vegas The Company and a subsidiary of Anschutz Entertainment Group, Inc. (“AEG”) each own 42.5% of the Las Vegas Arena Company, LLC (“Las Vegas Arena Company”), the entity which owns the T-Mobile Arena, and Athena Arena, LLC owns the remaining 15%. The Company manages the T-Mobile Arena, which is located on a parcel of the Company’s land between Frank Sinatra Drive and New York-New York, adjacent to the Las Vegas Strip. The T-Mobile Arena is a 20,000 seat venue designed to host world-class events – from mixed martial arts, boxing, basketball and bull riding, to high profile awards shows and top-name concerts, and is the home of the Vegas Golden Knights of the National Hockey League. Additionally, the Company leases the MGM Grand Garden Arena, located adjacent to the MGM Grand Las Vegas, to the Las Vegas Arena Company. See Note 3 for additional information regarding the Company’s investment in the Las Vegas Arena Company. The Company also has a 50% interest in Grand Victoria. Grand Victoria is a riverboat casino in Elgin, Illinois; an affiliate of Hyatt Gaming owns the other 50% of Grand Victoria and also operates the resort. In April 2018, the Company, along with its venture partner, entered into a definitive agreement to sell the Grand Victoria Casino. See Note 3 for additional information regarding the Company’s investment in Grand Victoria. A subsidiary of the Company was awarded a casino license to build and operate MGM Springfield in Springfield, Massachusetts. MGM Springfield is in the process of being developed on approximately 14 acres of land in downtown Springfield. The Company’s plans for the resort currently include a casino with approximately 2,500 slots and 120 table games including poker; a 250-room hotel; 110,000 square feet of retail and restaurant space; 46,000 square feet of meeting and event space; and a 3,500 space parking garage, with an expected development and construction cost of approximately $960 million, excluding capitalized interest and land-related costs. MGM Springfield is expected to open on August 24, 2018. On May 28, 2018, the Company entered into an agreement to acquire the real property and operations associated with the Empire City Casino's race track and casino ("Empire City") for total consideration of $850 million, subject to customary working capital and other adjustments, including the assumption of approximately $245 million of debt, the issuance of approximately $260 million of the Company’s common stock, and the remaining balance in cash. If Empire City is awarded a license for live table games on or prior to December 31, 2022 and the Company accepts such license by December 31, 2024, the Company will pay additional consideration of $50 million. The Company and MGP have also entered into a definitive agreement whereby MGP will acquire the developed real property associated with Empire City from the Company for total consideration of approximately $625 million, which will include the assumption of approximately $245 million of debt by MGP, with the balance through the issuance of operating partnership units to the Company. Empire City will be added to the existing Master Lease between the Company and MGP through which MGP will lease the real property back to a subsidiary of the Company, after which a subsidiary of the Company will operate the property. In addition, pursuant to the Master Lease, the Company has agreed to give MGP a right of first offer with respect to certain undeveloped land adjacent to the property to the extent that the Company develops additional gaming facilities and chooses to sell or transfer the property in the future. The transactions are expected to close in the first quarter of 2019, subject to regulatory approvals and other customary closing conditions. The Company has two reportable segments: domestic resorts and MGM China. See Note 9 for additional information about the Company’s segments.

Basis of Presentation and Signi

Basis of Presentation and Significant Accounting Policies	6 Months Ended
	Jun. 30, 2018
Accounting Policies [Abstract]
Basis of Presentation and Significant Accounting Policies	NOTE 2 — BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES Basis of presentation. As permitted by the rules and regulations of the Securities and Exchange Commission, certain information and footnote disclosures normally included in financial statements prepared in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”) have been condensed or omitted. These consolidated financial statements should be read in conjunction with the Company’s 2017 annual consolidated financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2017. In the opinion of management, the accompanying unaudited consolidated financial statements contain all adjustments, which include only normal recurring adjustments, necessary to present fairly the Company’s interim financial statements. The results for such periods are not necessarily indicative of the results to be expected for the full year. Principles of consolidation. Management has determined that MGP is a variable interest entity (“VIE”) because the Class A equity investors as a group lack the power through voting or similar rights to direct the activities of such entity that most significantly impact such entity’s economic performance. The Company has determined that it is the primary beneficiary of MGP and consolidates MGP because (i) its ownership of MGP’s single Class B share entitles it to a majority of the total voting power of MGP’s shares, and (ii) the exchangeable nature of the Operating Partnership units owned provide the Company the right to receive benefits from MGP that could potentially be significant to MGP. The Company has recorded MGP’s ownership interest in the Operating Partnership of 26.7% as of June 30, 2018 as noncontrolling interest in the Company’s consolidated financial statements. As of June 30, 2018 and December 31, 2017, on a consolidated basis, MGP had total assets of $10.3 billion and $10.4 billion, respectively, primarily related to its real estate investments, and total liabilities of $4.3 billion as of both dates, primarily related to its indebtedness. Property and equipment. Property and equipment are stated at cost. A significant amount of the Company’s property and equipment was acquired through business combinations and therefore recognized at fair value at the acquisition date. Gains and losses on dispositions of property and equipment are included in the determination of income or loss. Maintenance costs are expensed as incurred. As of June 30, 2018 and December 31, 2017, the Company had accrued $60 million and $28 million, respectively, for property and equipment within accounts payable, and $1 million and $34 million, respectively, related to construction retention within other long-term liabilities. Revenue recognition. The Company’s revenue contracts with customers consist of casino wager transactions, hotel room sales, food and beverage transactions, entertainment shows, and retail transactions. The transaction price for a casino wager is the difference between gaming wins and losses (“net win”). In certain circumstances, the Company offers discounts on markers, which is estimated based upon historical business practice, and recorded as a reduction of casino revenue. Commissions rebated to gaming promoters and VIP players at MGM China are also recorded as a reduction of casino revenue. The Company accounts for casino revenue on a portfolio basis given the similar characteristics of wagers by recognizing net win per gaming day versus on an individual wager basis. For casino wager transactions that include complimentary goods and services provided by the Company to gaming patrons on a discretionary basis to incentivize gaming, the Company allocates revenue to the good or service delivered based upon stand-alone selling price (“SSP”). Discretionary complimentaries provided by the Company and supplied by third parties are recognized as an operating expense. The Company accounts for complimentaries on a portfolio basis given the similar characteristics of the incentives by recognizing redemption per gaming day. For casino wager transactions that include incentives earned by customers under the Company’s loyalty programs, the Company allocates a portion of net win based upon the SSP of such incentive (less estimated breakage). This allocation is deferred and recognized as revenue when the customer redeems the incentive. When redeemed, revenue is recognized in the department that provides the goods or service. Redemption of loyalty incentives at third party outlets are deducted from the loyalty liability and amounts owed are paid to the third party, with any discount received recorded as other revenue. During the three and six months ended June 30, 2018, commissions, complimentaries, and other incentives provided to gaming customers were $520 million and $1.1 billion, respectively. During the three and six months ended June 30, 2017, commissions, complimentaries, and other incentives provided to gaming customers were $473 million and $958 million, respectively. After allocating revenue to other goods and services provided as part of casino wager transactions, the Company records the residual amount to casino revenue. The transaction price of rooms, food and beverage, and retail contracts is the net amount collected from the customer for such good and services. The transaction price for such contracts is recorded as revenue when the good or service is transferred to the customer over their stay at the hotel or when the delivery is made for the food & beverage and retail & other contracts. Sales and usage-based taxes are excluded from revenues. For some arrangements, the Company acts as an agent in that it arranges for another party to transfer goods and services, which primarily include certain of the Company’s entertainment shows as well as customer rooms arranged by online travel agents. The Company also has other contracts that include multiple goods and services, such as packages that bundle food, beverage, or entertainment offerings with hotel stays and convention services. For such arrangements, the Company allocates revenue to each good or service based on its relative SSP. The Company primarily determines the SSP of rooms, food and beverage, entertainment, and retail goods and services based on the amount that the Company charges when sold separately in similar circumstances to similar customers. Contract and Contract-Related Liabilities. There may be a difference between the timing of cash receipts from the customer and the recognition of revenue, resulting in a contract or contract-related liability. The Company generally has three types of liabilities related to contracts with customers: (1) outstanding chip liability, which represents the amounts owned in exchange for gaming chips held by a customer, (2) loyalty program obligations, which represents the deferred allocation of revenue relating to loyalty program incentives earned, as discussed above, and (3) customer advances and other, which is primarily funds deposited by customers before gaming play occurs (“casino front money”) and advance payments on goods and services yet to be provided such as advance ticket sales and deposits on rooms and convention space or for unpaid wagers. These liabilities are generally expected to be recognized as revenue within one year of being purchased, earned, or deposited and are recorded within “Other accrued liabilities” on the Company’s consolidated balance sheets. The following table summarizes the activity related to contract and contract-related liabilities: Outstanding Chip Liability Loyalty Program Customer Advances and Other 2018 2017 2018 2017 2018 2017 (in thousands) Balance at January 1 $ 597,753 $ 227,538 $ 91,119 $ 88,379 $ 539,626 $ 437,287 Balance at June 30 759,049 319,878 98,308 88,195 510,750 425,197 Increase / (decrease) $ 161,296 $ 92,340 $ 7,189 $ (184 ) $ (28,876 ) $ (12,090 ) Reimbursed costs. Costs reimbursed pursuant to management services are recognized as revenue in the period it incurs the costs as this reflects when the Company performs its related performance obligation and is entitled to reimbursement. Reimbursed costs relate primarily to the Company’s management of CityCenter. Revenue by source. The Company presents the revenue earned disaggregated by the type or nature of the good or service (casino, room, food and beverage, and entertainment, retail and other) and by relevant geographic region within Note 9. Lease revenues earned by the Company from third-parties are classified within the line item corresponding to the type or nature of the tenant’s good or service. During the three and six months ended June 30, 2018, lease revenues include $12 million and $25 million recorded within food and beverage revenue, respectively, and $22 million and $43 million recorded within entertainment, retail, and other revenue for the same such periods, respectively. During the three and six months ended June 30, 2017, lease revenues include $14 million and $26 million recorded within food and beverage revenue, respectively, and $19 million and $39 million recorded within entertainment, retail, and other revenue for the same such periods, respectively. Recently issued accounting standards. In May 2014, the FASB issued the ASC 606, “Revenue from Contracts with Customers (Topic 606)” which outlines a new, single comprehensive model for entities to use in accounting for revenue arising from contracts with customers and supersedes most current revenue recognition guidance, including industry-specific guidance. Under the standard, revenue is recognized when a customer obtains control of promised goods or services in an amount that reflects the consideration the entity expects to receive in exchange for those goods and services. The Company adopted ASC 606 on a full retrospective basis effective January 1, 2018. The most significant impacts of adoption of the new accounting pronouncement were as follows: • Promotional Allowances: The Company no longer recognizes revenues for goods and services provided to customers for free as an inducement to gamble as gross revenue with a corresponding offset to promotional allowances to arrive at net revenues, and accordingly the promotional allowances line item has been removed. The majority of such amounts previously included in promotional allowances now offset casino revenues based on an allocation of revenues to performance obligations using stand-alone selling price. This change resulted in a reclassification of revenue between revenue line items; • Loyalty Accounting: As discussed within Revenue Recognition retained earnings as of January 1, 2015 of $29 million, net of tax of $15 million, with a corresponding increase primarily to other accrued liabilities, • Gaming Promoter Commission: Commissions paid to gaming promoters under MGM China’s incentive program are now fully reflected as a reduction in casino revenue. This change resulted in a decrease in casino expense and a corresponding decrease in casino revenue; • Gross versus Net Presentation: Mandatory service charges on food and beverage and wide area progressive operator fees are recorded gross, that is, the amount received from the customer has been recorded as revenue with the corresponding amount paid as an expense. These changes resulted in an increase in revenue with a corresponding increase in expense; • Estimated Cost of Promotional Allowances: The Company no longer reclassifies the estimated cost of complimentaries provided to the gaming patron from other expense line items to the casino expense line item. This change resulted in a reclassification between expense line items. These changes, and other less significant adjustments that were required upon adoption, did not have an aggregate material impact on operating income, net income, or cash flows . The following tables show the increase/(decrease) to our 2017 quarters and full-year 2017, 2016, and 2015 income statement line items as follows: Three Months Ended Twelve Months Ended Dec 31, 2017 Sep 30, 2017 June 30, 2017 Mar 31, 2017 Dec 31, 2017 Dec 31, 2016 Dec 31, 2015 (in thousands) Increase/(decrease) Revenues Casino $ (241,045 ) $ (260,644 ) $ (232,305 ) $ (233,915 ) $ (967,909 ) $ (828,364 ) $ (782,222 ) Rooms (2,987 ) 8,518 (715 ) (3,455 ) 1,361 (20,814 ) (42,152 ) Food and beverage 16,296 21,967 18,552 24,867 81,682 87,895 72,990 Entertainment, retail, and other (1,204 ) (2,867 ) (3,328 ) (1,169 ) (8,568 ) (9,142 ) (10,867 ) (228,940 ) (233,026 ) (217,796 ) (213,672 ) (893,434 ) (770,425 ) (762,251 ) Promotional allowances 229,297 236,460 228,193 223,059 917,009 793,571 751,773 357 3,434 10,397 9,387 23,575 23,146 (10,478 ) Expenses Casino (147,081 ) (147,144 ) (135,898 ) (137,660 ) (567,783 ) (504,561 ) (519,569 ) Rooms 37,260 35,370 34,381 33,833 140,844 121,551 113,560 Food and beverage 100,043 104,786 101,516 103,317 409,662 367,166 353,364 Entertainment, retail, and other 10,220 11,779 11,676 10,718 44,393 41,401 39,306 General and administrative (68 ) (111 ) (114 ) (47 ) (340 ) (83 ) 9 Corporate expense (2 ) — 40 (41 ) (3 ) (69 ) (71 ) 372 4,680 11,601 10,120 26,773 25,405 (13,401 ) Income from unconsolidated affiliates 25 89 56 63 233 671 471 Operating income (loss) 10 (1,157 ) (1,148 ) (670 ) (2,965 ) (1,588 ) 3,394 Income (loss) before income taxes 10 (1,157 ) (1,148 ) (670 ) (2,965 ) (1,588 ) 3,394 Benefit (provision) for income taxes (6,310 ) 405 401 235 (5,269 ) 556 (1,189 ) Net income (loss) (6,300 ) (752 ) (747 ) (435 ) (8,234 ) (1,032 ) 2,205 Net income (loss) attributable to MGM Resorts International $ (6,300 ) $ (752 ) $ (747 ) $ (435 ) $ (8,234 ) $ (1,032 ) $ 2,205 Net income (loss) per share of common stock attributable to MGM Resorts International Basic $ (0.01 ) $ — $ (0.01 ) $ — $ (0.01 ) $ — $ — Diluted $ (0.01 ) $ — $ — $ — $ (0.01 ) $ — $ — In February 2016, the FASB issued ASC 842 “Leases (Topic 842),” which replaces the existing guidance in ASC 840, “Leases.” ASC 842 is effective for fiscal years, and interim periods within those years, beginning after December 15, 2018. ASC 842 requires a dual approach for lessee accounting under which a lessee would account for leases as finance leases or operating leases. Both finance leases and operating leases will result in the lessee recognizing a right-of-use (“ROU”) asset and a corresponding lease liability. For finance leases, the lessee would recognize interest expense and amortization of the ROU asset and for operating leases the lessee would recognize a straight-line total lease expense. The Company is currently assessing the impact the adoption of ASC 842 will have on its consolidated financial statements and footnote disclosures. In January 2018, the Company adopted ASU No. 2016-15, “Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments (a consensus of the Emerging Issues Task Force),” (“ASU 2016-15”). ASU 2016-15 amends the guidance of ASC 230 on the classification of certain cash receipts and payments in the statement of cash flows. The primary purpose of ASU 2016-15 is to reduce the diversity in practice that has resulted from the lack of consistent principles, specifically clarifying the guidance on eight cash flow issues. The adoption of ASU 2016-15 did not have a material effect on the Company’s consolidated financial statements and footnote disclosures. In March 2018, the FASB issued ASU No. 2018-05, “Income Taxes (Topic 740) - Amendments to SEC Paragraphs Pursuant to SEC Staff Accounting Bulletin No. 118,” ("ASU 2018-05"). ASU 2018-05 provides guidance on accounting for the tax effects of the U.S. Tax Cuts and Jobs Act (the “Tax Act”) pursuant to the Staff Accounting Bulletin No. 118, which allows companies to complete the accounting under ASC 740 within a one-year measurement period from the Tax Act enactment date, which occurred in the financial statements for the year ended December 31, 2017. The Company continues to evaluate the tax effects of the Tax Act (see Note 5) and expects to finalize its provisional amounts by the fourth quarter of 2018.

Investments in and Advances to

Investments in and Advances to Unconsolidated Affiliates	6 Months Ended
	Jun. 30, 2018
Equity Method Investments And Joint Ventures [Abstract]
Investments in and Advances to Unconsolidated Affiliates	NOTE 3 — INVESTMENTS IN AND ADVANCES TO UNCONSOLIDATED AFFILIATES Investments in and advances to unconsolidated affiliates consisted of the following: June 30, December 31, 2018 2017 (In thousands) CityCenter Holdings, LLC – CityCenter (50%) $ 663,785 $ 808,220 Elgin Riverboat Resort–Riverboat Casino – Grand Victoria (50%) 121,978 124,342 Las Vegas Arena Company, LLC (42.5%) 76,356 76,619 Other 20,821 24,116 $ 882,940 $ 1,033,297 The Company recorded its share of net income from unconsolidated affiliates, including adjustments for basis differences, as follows: Three Months Ended Six Months Ended June 30, June 30, 2018 2017 2018 2017 (In thousands) Income from unconsolidated affiliates $ 47,940 $ 40,639 $ 79,706 $ 80,405 Preopening and start-up expenses — — (3,321 ) — Non-operating items from unconsolidated affiliates (11,068 ) (10,556 ) (20,078 ) (17,477 ) $ 36,872 $ 30,083 $ 56,307 $ 62,928 Mandarin Oriental. In March 2018, a subsidiary of CityCenter entered into an agreement for the sale of the Mandarin Oriental Las Vegas and adjacent retail parcels for approximately $214 million, subject to customary closing conditions. As a result of this transaction, CityCenter recorded an impairment charge of approximately $127 million. The Company recorded a reversal of certain basis differences of $64 million, which entirely offset its 50% share of the impairment charge. The transaction is expected to close during the third quarter of 2018. CityCenter distributions. In May 2018, CityCenter paid a $400 million dividend, of which the Company received its 50% share, or $200 million and in April 2017, CityCenter paid a $600 million dividend, of which the Company received its 50% share, or $300 million. CityCenter credit facility. In May 2018, CityCenter repriced its term loan B facility to LIBOR plus 2.25% representing a 25 basis point decrease from the prior rate. All other material provisions of the existing credit facility remain unchanged. Concurrently, CityCenter completed the execution of a $200 million incremental term loan which has the same terms as its existing term loan B facility. Grand Victoria sale. In April 2018, the Company, along with its venture partner, entered into a definitive agreement to sell the Grand Victoria Casino, of which a subsidiary of the Company owns 50% interest, to Eldorado Resorts, Inc. for $328 million in cash, subject to a working capital adjustment. The Company will receive its 50% share of the net proceeds after certain transaction costs, or approximately $162 million. The transaction is expected to close during the third quarter of 2018, subject to regulatory approvals and other customary closing conditions.

Long-Term Debt

Long-Term Debt	6 Months Ended
	Jun. 30, 2018
Debt Disclosure [Abstract]
Long-Term Debt	NOTE 4 — LONG-TERM DEBT Long-term debt consisted of the following: June 30, December 31, 2018 2017 (In thousands) Senior credit facility $ 231,250 $ 372,500 Operating Partnership senior credit facility 2,078,375 2,091,375 MGM China credit facility 2,085,994 2,301,584 $850 million 8.625% senior notes, due 2019 850,000 850,000 $500 million 5.25% senior notes, due 2020 500,000 500,000 $1,000 million 6.75% senior notes, due 2020 1,000,000 1,000,000 $1,250 million 6.625% senior notes, due 2021 1,250,000 1,250,000 $1,000 million 7.75% senior notes, due 2022 1,000,000 1,000,000 $1,250 million 6% senior notes, due 2023 1,250,000 1,250,000 $1,050 million 5.625% Operating Partnership senior notes, due 2024 1,050,000 1,050,000 $1,000 million 5.75% senior notes, due 2025 1,000,000 — $500 million 4.50% Operating Partnership senior notes, due 2026 500,000 500,000 $500 million 4.625% senior notes, due 2026 500,000 500,000 $350 million 4.50% Operating Partnership senior notes, due 2028 350,000 350,000 $0.6 million 7% debentures, due 2036 552 552 $2.3 million 6.7% debentures, due 2096 — 2,265 13,646,171 13,018,276 Less: Premiums, discounts, and unamortized debt issuance costs, net (132,830 ) (109,182 ) 13,513,341 12,909,094 Less: Current portion of long-term debt, net — (158,042 ) $ 13,513,341 $ 12,751,052 Debt due within one year of the June 30, 2018 and December 31, 2017 balance sheets was classified as long-term as the Company had both the intent and ability to refinance current maturities on a long-term basis under its revolving senior credit facilities, with the exception that $158 million related to MGM China’s term loan amortization payments in excess of available borrowings under the MGM China revolving credit facility were classified as current at December 31, 2017. Senior credit facility. At June 30, 2018 , the Company’s senior credit facility consisted of a $231 million term loan A facility and a $1.25 billion revolving facility. The Company permanently repaid $3 million and $6 million of the term loan A facility in the three and six months ended June 30, 2018, respectively, in accordance with the scheduled amortization. At June 30, 2018, the interest rate on the term loan A was 4.34%. At June 30, 2018, no amounts were drawn on the revolving credit facility. The Company was in compliance with its credit facility covenants at June 30, 2018. Operating Partnership senior credit facility. At June 30, 2018, the Operating Partnership senior credit facility consisted of a $470 million term loan A facility, a $1.8 billion term loan B facility, and a $1.35 billion revolving credit facility. On March 23, 2018, the Operating Partnership repriced its term loan B interest rate to LIBOR plus 2.00% and extended the maturity of the term loan B facility to March 2025, effective June 14, 2018. On June 14, 2018, the Operating Partnership amended its credit agreement to provide for a $750 million increase of the revolving facility to $1.35 billion, provide for a new $200 million delayed draw on the term loan A facility and extend the maturity of the revolving facility and the term loan A facility to June 2023. Additionally, the revolving and term loan A facilities were repriced to LIBOR plus 1.75% to 2.25% determined by reference to a total net leverage ratio pricing grid. In addition, the term loan A facility’s repayment will start on the last business day of each calendar quarter beginning September 30, 2019, for an amount equal to 0.625% of the aggregate principal amount of the term loan A outstanding as of the amendment effective date. The Operating Partnership permanently repaid $0 and $4 million of the term loan A facility in the three and six months ended June 30, 2018, respectively, in accordance with the scheduled amortization, and the Operating Partnership permanently repaid $5 million and $9 million of the term loan B facility in the three and six months ended June 30, 2018, respectively, in accordance with the scheduled amortization. At June 30, 2018, the interest rate on the term loan A facility was 4.34% and the interest rate on the term loan B facility was 4.09%. At June 30, 2018, no amounts were drawn on the revolving credit facility or on the delayed draw on the term loan A facility. The Operating Partnership was in compliance with its credit facility covenants at June 30, 2018. The Operating Partnership is party to interest rate swaps to mitigate the interest rate risk inherent in its senior secured term loan B facility. As of June 30, 2018, the Operating Partnership pays a weighted average fixed rate of 1.844% on total notional amount of $1.2 billion and the variable rate received resets monthly to the one-month LIBOR with no minimum floor. The fair values of the interest rate swaps were $34 million and $11 million as of June 30, 2018 and December 31, 2017, respectively. The interest rate swaps were valued in a net unrealized gain position and were recorded in “Other long-term assets, net” in the accompanying consolidated balance sheets. MGM China credit facility. At June 30, 2018, the MGM China credit facility consisted of $2.0 billion of term loans and a $1.0 billion revolving credit facility, which bear interest at a fluctuating rate per annum based on HIBOR plus 1.375% to 2.50%, as determined by MGM China’s leverage ratio. On June 15, 2018, MGM China amended and restated its credit facility for a reduction in the total revolving credit commitments of $450 million to $1.0 billion and an increase in the total term loan commitments of $450 million to $2.0 billion (the aggregate amount of commitments remains unchanged). The final maturity date was also extended to June 2022, but no revolving credit loans or term loans shall remain outstanding after, and no revolving credit or term loan commitments shall be available after, March 31, 2022. Quarterly principal amortization payments of the term loan facilities were amended to be 5% of the original principal amount beginning in September 2018 through December 2021, with the remaining balance due in March 2022, and the maximum total leverage ratio was increased to 6.00 to 1.00 at June 30, 2018, declining to 5.50 to 1.00 at September 30, 2018, 5.00 to 1.00 at December 31, 2018, and 4.50 to 1.00 at March 31, 2019 and thereafter. At June 30, 2018, $98 million was drawn on the revolving credit facility. At June 30, 2018, the interest rates on the term loans and the revolving credit facility were 4.53%. MGM China was in compliance with its credit facility covenants at June 30, 2018. Senior Notes. In June 2018, the Company issued $1.0 billion in aggregate principal amount of 5.750% senior notes due 2025 for net proceeds of $986 million. Fair value of long-term debt. The estimated fair value of the Company’s long-term debt was $13.8 billion and $13.6 billion at June 30, 2018 and December 31, 2017, respectively. Fair value was estimated using quoted market prices for the Company’s senior notes and senior credit facilities.

Income Taxes

Income Taxes	6 Months Ended
	Jun. 30, 2018
Income Tax Disclosure [Abstract]
Income Taxes	NOTE 5 — INCOME TAXES For interim income tax reporting the Company estimates its annual effective tax rate and applies it to its year-to-date ordinary income. The tax effects of unusual or infrequently occurring items, including changes in judgment about valuation allowances and effects of changes in tax laws or rates, are reported in the interim period in which they occur. The Company’s effective income tax rate was a provision of 14.4% and a benefit of 17.9% for the three and six months ended June 30, 2018, respectively. The Company recognizes deferred income tax assets, net of applicable reserves, related to net operating losses, tax credit carryforwards and certain temporary differences. The Company recognizes future tax benefits to the extent that realization of such benefit is more likely than not. Otherwise, a valuation allowance is applied. The six months ended June 30, 2018 included a $72 million non-cash income tax benefit measurement period adjustment under SAB118 that was recorded during the first quarter for the tax effect of the Tax Act based upon additional information gathered and evaluated during the period. The adjustment primarily resulted from global intangible low-taxed income (“GILTI”) treated as general basket income rather than GILTI basket income. While no measurement period adjustments were recorded during the three months ended June 30, 2018, the Company continues to evaluate the impact of the Tax Act and may adjust provisional amounts in future periods as it gathers additional information and evaluates any future regulatory or other guidance on items that may impact the FTC benefit, including, but not limited to, the treatment of income resulting from GILTI FTCs described above and allocations of interest and other expenses among active, exempt and GILTI foreign source income. MGM Grand Paradise has had an agreement with the Macau government to settle the 12% complementary tax that would otherwise be due by its shareholder, MGM China, on distributions of its gaming profits by paying a flat annual payment (“annual fee arrangement”) regardless of the amount of distributable dividends. Such annual fee arrangement was effective for distributions of profits earned through December 31, 2016. On March 15, 2018, MGM Grand Paradise executed an extension of the annual fee arrangement, which covers the distributions of gaming profits earned for the period of January 1, 2017 through March 31, 2020. It requires annual payments of approximately $1 million for 2017 through 2019 and a payment of approximately $300,000 for the first quarter 2020. The Company reversed the $41 million of deferred taxes previously recorded on 2017 earnings, resulting in a reduction in provision for income taxes during the six months ended June 30, 2018, partially offset by the 2017 annual payment amount.

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Jun. 30, 2018
Commitments And Contingencies Disclosure [Abstract]
Commitments and Contingencies	NOTE 6 — COMMITMENTS AND CONTINGENCIES October 1 litigation. The Company and/or certain of its subsidiaries have been named as defendants in a number of lawsuits related to the October 1, 2017 shooting in Las Vegas. The matters involve in large degree the same legal and factual issues, in each case being filed on behalf of individuals who are seeking damages for emotional distress, physical injury, medical expenses, economic damages and/or wrongful death based on assertions that the Company and/or certain of its subsidiaries were negligent. The Company has also received letters from attorneys purporting to represent persons with claims related to the October 1, 2017 shooting. Pending lawsuits were first filed in October 2017 and include actions filed by multiple individuals in the District Court of Clark County, Nevada and in the Superior Court of Los Angeles County, California. Some of the original actions have been voluntarily dismissed, and plaintiffs’ counsel indicate they anticipate re-filing the lawsuits in similar form. In June 2018, the Company has removed to federal court all actions that remained pending in California and Nevada state courts following the voluntary dismissals. Motions to remand have been filed in several cases, and the Company anticipates that there may be additional motions to remand filed in the future. The Company has also initiated declaratory relief actions against individuals who had sued or stated an intent to sue in federal courts in various districts. Additional lawsuits related to this incident may be filed in the future. The Company is currently unable to reliably predict the developments in, outcome of, and economic costs and other consequences of pending or future litigation related to this matter. The Company will continue to investigate the factual and legal defenses, and evaluate these matters based on subsequent events, new information and future circumstances. The Company intends to defend against these lawsuits and ultimately believes it should prevail, but litigation of this type is inherently unpredictable. Although there are significant procedural, factual and legal issues to be resolved that could significantly affect the Company’s belief as to the possibility of liability, the Company currently believes that it is reasonably possible that it could incur liability in connection with certain of these lawsuits. The foregoing determination was made in accordance with generally accepted accounting principles, as codified in ASC 450-20, and is not an admission of any liability on the part of the Company or any of its affiliates. Given that these cases are in the early stages and in light of the uncertainties surrounding them, the Company does not currently possess sufficient information to determine a range of reasonably possible liability. In the event the Company incurs any liability, the Company believes it is unlikely it would incur losses in connection with these claims in excess of its insurance coverage. In addition, the Company’s general liability insurance coverage provides, as part of the contractual “duty to defend”, payment of legal fees and associated costs incurred to defend covered lawsuits that are filed arising from the October 1, 2017 shooting in Las Vegas. Payment of such fees and costs is in addition to (and not limited by) the limits of the insurance policies and does not erode the total liability coverage available. The insurance carriers have not expressed any reservation of rights or coverage defenses that indicate they dispute coverage under the applicable policies. Other litigation. The Company is a party to various legal proceedings, most of which relate to routine matters incidental to its business. Management does not believe that the outcome of such proceedings will have a material adverse effect on the Company’s financial position, results of operations or cash flows. T-Mobile Arena senior credit facility. The Company is party to a repayment guarantee for the term loan B facility under the Las Vegas Arena Company’s senior credit facility. As of June 30, 2018, the term loan B was $50 million. As of June 30, 2018, the Company does not believe it is probable that it will need to perform on the guarantee. Other guarantees. The Company and its subsidiaries are party to various guarantee contracts in the normal course of business, which are generally supported by letters of credit issued by financial institutions. The Company’s senior credit facility limits the amount of letters of credit that can be issued to $250 million, the Operating Partnership’s senior credit facility limits the amount to $75 million, and MGM China’s credit facility limits the amount to $100 million. At June 30, 2018, $14 million in letters of credit were outstanding under the Company’s senior credit facility and $38 million in letters of credit were outstanding under MGM China’s credit facility. No amounts were outstanding under the Operating Partnership senior credit facility at June 30, 2018. The amount of available borrowings under each of the credit facilities are reduced by any outstanding letters of credit.

Income Per Share of Common Stoc

Income Per Share of Common Stock	6 Months Ended
	Jun. 30, 2018
Earnings Per Share [Abstract]
Income Per Share of Common Stock	NOTE 7 — INCOME PER SHARE OF COMMON STOCK The table below reconciles basic and diluted income per share of common stock. Diluted net income attributable to common stockholders includes adjustments for redeemable noncontrolling interests and the potentially dilutive effect on the Company’s equity interests in MGP and MGM China due to shares outstanding under their respective stock compensation plans. Diluted weighted-average common and common equivalent shares include adjustments for potential dilution of share-based awards outstanding under the Company’s stock compensation plan. Three Months Ended Six Months Ended June 30, June 30, 2018 2017 2018 2017 (In thousands) Numerator: Net income attributable to MGM Resorts International $ 123,777 $ 209,864 $ 347,221 $ 416,276 Adjustment related to redeemable noncontrolling interests (5,986 ) (28 ) (10,584 ) (55 ) Net income available to common stockholders - basic 117,791 209,836 336,637 416,221 Potentially dilutive effect due to MGP and MGM China stock compensation plans (26 ) (62 ) (158 ) (129 ) Net income attributable to common stockholders - diluted $ 117,765 $ 209,774 $ 336,479 $ 416,092 Denominator: Weighted-average common shares outstanding - basic 548,433 574,931 556,586 574,668 Potential dilution from share-based awards 5,906 7,125 6,522 6,444 Weighted-average common and common equivalent shares - diluted 554,339 582,056 563,108 581,112 Antidilutive share-based awards excluded from the calculation of diluted earnings per share 2,441 2,078 1,305 2,641

Stockholders' Equity

Stockholders' Equity	6 Months Ended
	Jun. 30, 2018
Equity [Abstract]
Stockholders' Equity	NOTE 8 — STOCKHOLDERS’ EQUITY MGM Resorts International dividends. The Company paid the following dividends during the six months ended June 30, 2018 and 2017: • $65 million quarterly dividend in June 2018, or $0.12 per share; • $68 million quarterly dividend in March 2018, or $0.12 per share; and • $63 million quarterly dividend in each of March and June 2017, or $0.11 per share. Additionally, on August 2, 2018 the Company’s Board of Directors approved a quarterly dividend of $0.12 per share that will be payable on September 14, 2018 to holders of record on September 10, 2018. Supplemental equity information. The following table presents the Company’s changes in stockholders’ equity for the six months ended June 30, 2018: MGM Resorts International Total Stockholders' Noncontrolling Stockholders' Equity Interests Equity (In thousands) Balances, January 1, 2018 $ 7,577,061 $ 4,034,063 $ 11,611,124 Net income 347,221 55,084 402,305 Currency translation adjustment (12,785 ) (9,967 ) (22,752 ) Other comprehensive income - cash flow hedges 13,158 6,033 19,191 Stock-based compensation 31,172 2,752 33,924 Issuance of common stock pursuant to stock-based compensation awards (9,390 ) — (9,390 ) Issuance of performance-based share units 3,609 107 3,716 Distributions to noncontrolling interest owners — (63,855 ) (63,855 ) Dividend paid to common shareholders (133,334 ) — (133,334 ) MGP dividend payable to Class A shareholders — (30,492 ) (30,492 ) Repurchases of common stock (957,264 ) — (957,264 ) Adjustment of redeemable non-controlling interest to redemption value (10,584 ) — (10,584 ) Other (1,722 ) (926 ) (2,648 ) Balances, June 30, 2018 $ 6,847,142 $ 3,992,799 $ 10,839,941 MGM Resorts International stock repurchase program. In May 2018, the Company’s Board of Directors authorized a $2.0 billion stock repurchase program and completed the previously announced $1.0 billion stock repurchase program. Under each stock repurchase program, the Company may repurchase shares from time to time in the open market or in privately negotiated agreements. The timing, volume and nature of stock repurchases will be at the sole discretion of management, dependent on market conditions, applicable securities laws, and other factors, and may be suspended or discontinued at any time. The Company repurchased the following shares of common stock during the six months ended June 30, 2018 under the $1.0 billion stock repurchase program: • in March 2018, 10 million shares at $36.24 per share for an aggregate amount of $362 million and • in May 2018, approximately 10 million shares at an average price of $31.38 per share for an aggregate amount of $310 million. The Company repurchased the following shares of common stock during the six months ended June 30, 2018 under the $2.0 billion stock repurchase program: • in June 2018, approximately 9 million shares at an average price of $31.21 per share for an aggregate amount of $285 million. Repurchased shares were retired. The remaining availability under the $2.0 billion stock repurchase program was approximately $1.7 billion as of June 30, 2018. Accumulated other comprehensive income. Changes in accumulated other comprehensive income attributable to MGM Resorts International are as follows: Currency Translation Cash Flow Adjustments Hedges Other Total (In thousands) Balance, January 1, 2018 $ (11,450 ) $ 6,668 $ 1,172 $ (3,610 ) Other comprehensive income (loss) before reclassifications (22,752 ) 18,357 — (4,395 ) Amounts reclassified from accumulated other comprehensive income to interest expense — 834 — 834 Other comprehensive income (loss), net of tax (22,752 ) 19,191 — (3,561 ) Less: Other comprehensive (income) loss attributable to noncontrolling interest 9,967 (6,033 ) — 3,934 Balance, June 30, 2018 $ (24,235 ) $ 19,826 $ 1,172 $ (3,237 )

Segment Information

Segment Information	6 Months Ended
	Jun. 30, 2018
Segment Reporting [Abstract]
Segment Information	NOTE 9 — SEGMENT INFORMATION The Company’s management views each of its casino resorts as an operating segment. Operating segments are aggregated based on their similar economic characteristics, types of customers, types of services and products provided, the regulatory environments in which they operate and their management and reporting structure. The Company’s principal operating activities occur in two geographic regions: the United States and Macau S.A.R. The Company has aggregated its operations into two reportable segments based on the similar characteristics of the operating segments: domestic resorts and MGM China. The Company’s operations related to investments in unconsolidated affiliates and certain other corporate operations and management services have not been identified as separate reportable segments; therefore, these operations are included in “Corporate and other” in the following segment disclosures to reconcile to consolidated results. The Company’s management utilizes Adjusted Property EBITDA as the primary profit measure for its reportable segments. Adjusted Property EBITDA is a measure defined as Adjusted EBITDA before corporate expense and stock compensation expense, which are not allocated to each property. Adjusted EBITDA is a measure defined as earnings before interest and other non-operating income (expense), taxes, depreciation and amortization, NV energy exit expense, preopening and start-up expenses, and property transactions, net. The following tables present the Company’s segment information: Three Months Ended Six Months Ended June 30, June 30, 2018 2017 2018 2017 (In thousands) Net revenue Domestic resorts Casino $ 833,398 $ 774,712 $ 1,674,095 $ 1,596,378 Rooms 532,869 528,380 1,052,515 1,073,972 Food and beverage 466,663 473,652 901,337 931,579 Entertainment, retail and other 330,073 328,644 633,728 625,424 2,163,003 2,105,388 4,261,675 4,227,353 MGM China Casino 496,895 397,200 1,047,490 846,147 Rooms 31,002 13,376 50,836 26,596 Food and beverage 28,104 11,445 48,841 22,854 Entertainment, retail and other 5,349 1,890 10,044 3,730 561,350 423,911 1,157,211 899,327 Reportable segment net revenues 2,724,353 2,529,299 5,418,886 5,126,680 Corporate and other 134,342 122,834 262,046 243,019 $ 2,858,695 $ 2,652,133 $ 5,680,932 $ 5,369,699 Adjusted Property EBITDA Domestic resorts $ 625,720 $ 656,899 $ 1,242,087 $ 1,304,096 MGM China 119,875 118,906 271,626 264,103 Reportable segment Adjusted Property EBITDA 745,595 775,805 1,513,713 1,568,199 Other operating expense Corporate and other (50,265 ) (37,446 ) (116,989 ) (66,798 ) NV Energy exit expense — 40,629 — 40,629 Preopening and start-up expenses (19,077 ) (21,093 ) (85,994 ) (36,159 ) Property transactions, net (16,970 ) (13,243 ) (22,868 ) (14,939 ) Depreciation and amortization (296,208 ) (244,754 ) (565,030 ) (494,523 ) Operating income 363,075 499,898 722,832 996,409 Non-operating income (expense) Interest expense, net of amounts capitalized (181,493 ) (174,058 ) (349,402 ) (348,117 ) Non-operating items from unconsolidated affiliates (11,068 ) (10,556 ) (20,078 ) (17,477 ) Other, net (6,381 ) (751 ) (8,297 ) (1,568 ) (198,942 ) (185,365 ) (377,777 ) (367,162 ) Income before income taxes 164,133 314,533 345,055 629,247 Benefit (provision) for income taxes (23,710 ) (73,660 ) 61,669 (135,800 ) Net income 140,423 240,873 406,724 493,447 Less: Net income attributable to noncontrolling interests (16,646 ) (31,009 ) (59,503 ) (77,171 ) Net income attributable to MGM Resorts International $ 123,777 $ 209,864 $ 347,221 $ 416,276

Related Party Transactions

Related Party Transactions	6 Months Ended
	Jun. 30, 2018
Related Party Transactions [Abstract]
Related Party Transactions	NOTE 10 — RELATED PARTY TRANSACTIONS MGM China Ms. Ho, Pansy Catilina Chiu King (“Ms. Ho”) is a member of the Board of Directors of, and holds a minority ownership interest in, MGM China. MGM Branding and Development Holdings, Ltd. (together with its subsidiary MGM Development Services, Ltd., “MGM Branding and Development”), an entity included in the Company’s consolidated financial statements in which Ms. Ho indirectly holds a noncontrolling interest, is party to a brand license agreement and a development services agreement with MGM China, for which the related amounts are eliminated in consolidation. Entities owned by Ms. Ho received distributions in connection with her ownership of a noncontrolling interest in MGM Branding and Development Holdings, Ltd. of $4 million and $13 million during the three and six months ended June 30, 2018, respectively, and $8 million and $10 million during the three and six months ended June 30, 2017, respectively. MGP As described in Note 1, pursuant to the master lease, the tenant 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, and MGM National Harbor from the landlord. In connection with the commencement of the third lease year on April 1, 2018, annual rent payments under the master lease increased to $770 million from $757 million. The master lease contains customary events of default and financial covenants. The Company was in compliance with all applicable covenants as of June 30, 2018. All intercompany transactions, including transactions under the master lease, have been eliminated in the Company’s consolidation of MGP. The public ownership of MGP’s Class A shares is recognized as non-controlling interests in the Company’s consolidated financial statements.

Condensed Consolidating Financi

Condensed Consolidating Financial Information	6 Months Ended
	Jun. 30, 2018
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Condensed Consolidating Financial Information	NOTE 11 — CONDENSED CONSOLIDATING FINANCIAL INFORMATION As of June 30, 2018, all of the Company’s principal debt arrangements are guaranteed by each of its material domestic subsidiaries, other than MGP and the Operating Partnership, MGM Grand Detroit, LLC, MGM National Harbor, LLC, Blue Tarp reDevelopment, LLC (the company that will own and operate the Company’s casino in Springfield, Massachusetts), and each of their respective subsidiaries. The Company’s international subsidiaries, including MGM China and its subsidiaries, are not guarantors of such indebtedness. Separate condensed financial statement information for the subsidiary guarantors and non-guarantors as of June 30, 2018 and December 31, 2017, and for the three and six months ended June 30, 2018 and 2017 are presented below. Within the Condensed Consolidating Statements of Cash Flows, the Company has presented net changes in intercompany accounts as investing activities if the applicable entities have a net asset in intercompany accounts and as a financing activity if the applicable entities have a net intercompany liability balance. Certain of the Company’s subsidiaries collectively own Operating Partnership units and each subsidiary accounts for its respective investment under the equity method within the condensed consolidating financial information presented below. For these subsidiaries, such investment constitutes continuing involvement, and accordingly, the contribution and leaseback of the real estate assets do not qualify for sale-leaseback accounting. The real estate assets are reflected in the balance sheets of the applicable MGM subsidiaries. In addition, such subsidiaries recognized finance liabilities within “Other long-term obligations” related to rent payments due under the master lease and recognized the related interest expense component of such payments. These real estate assets are also reflected on the balance sheet of the MGP subsidiary that received such assets. The condensed consolidating financial information presented below therefore includes the accounting for such activity within the respective columns presented and in the elimination column. CONDENSED CONSOLIDATING BALANCE SHEET INFORMATION At June 30, 2018 Guarantor Non-Guarantor Subsidiaries Parent Subsidiaries MGP Other Elimination Consolidated (In thousands) Current assets $ 81,185 $ 945,675 $ 294,979 $ 765,156 $ (3,879 ) $ 2,083,116 Property and equipment, net — 13,539,895 9,880,658 6,334,519 (9,891,994 ) 19,863,078 Investments in subsidiaries 21,713,553 3,403,939 — — (25,117,492 ) — Investments in the MGP Operating Partnership — 3,503,564 — 847,376 (4,350,940 ) — Investments in and advances to unconsolidated affiliates — 852,698 — 5,242 25,000 882,940 Intercompany accounts — 6,514,427 — — (6,514,427 ) — Other non-current assets 58,616 974,909 94,428 5,063,874 (43,801 ) 6,148,026 $ 21,853,354 $ 29,735,107 $ 10,270,065 $ 13,016,167 $ (45,897,533 ) $ 28,977,160 Current liabilities $ 142,431 $ 1,425,041 $ 149,275 $ 1,568,900 $ (220,854 ) $ 3,064,793 Intercompany accounts 6,351,967 — 147 162,313 (6,514,427 ) — Deferred income taxes, net 940,949 — 28,544 285,448 (28,544 ) 1,226,397 Long-term debt, net 7,532,585 570 3,923,224 2,056,962 — 13,513,341 Other long-term obligations 38,280 7,235,916 194,572 2,259,167 (9,482,215 ) 245,720 Total liabilities 15,006,212 8,661,527 4,295,762 6,332,790 (16,246,040 ) 18,050,251 Redeemable noncontrolling interests — — — 86,968 — 86,968 MGM Resorts International stockholders' equity 6,847,142 21,073,580 4,374,317 4,203,596 (29,651,493 ) 6,847,142 Noncontrolling interests — — 1,599,986 2,392,813 — 3,992,799 Total stockholders' equity 6,847,142 21,073,580 5,974,303 6,596,409 (29,651,493 ) 10,839,941 $ 21,853,354 $ 29,735,107 $ 10,270,065 $ 13,016,167 $ (45,897,533 ) $ 28,977,160 At December 31, 2017 Guarantor Non-Guarantor Subsidiaries Parent Subsidiaries MGP Other Elimination Consolidated (In thousands) Current assets $ 78,909 $ 1,015,802 $ 266,627 $ 1,022,340 $ (7,323 ) $ 2,376,355 Property and equipment, net — 13,521,221 10,021,938 6,125,722 (10,033,422 ) 19,635,459 Investments in subsidiaries 21,040,147 3,304,768 — — (24,344,915 ) — Investments in the MGP Operating Partnership — 3,549,063 — 862,037 (4,411,100 ) — Investments in and advances to unconsolidated affiliates — 1,002,903 — 5,394 25,000 1,033,297 Intercompany accounts — 5,998,499 — — (5,998,499 ) — Other non-current assets 49,142 913,602 62,555 5,134,220 (44,588 ) 6,114,931 $ 21,168,198 $ 29,305,858 $ 10,351,120 $ 13,149,713 $ (44,814,847 ) $ 29,160,042 Current liabilities $ 153,159 $ 1,445,031 $ 144,537 $ 1,609,110 $ (213,540 ) $ 3,138,297 Intercompany accounts 5,783,578 — 962 213,959 (5,998,499 ) — Deferred income taxes, net 934,966 — 28,544 360,409 (28,544 ) 1,295,375 Long-term debt, net 6,682,574 2,835 3,934,628 2,131,015 — 12,751,052 Other long-term obligations 36,860 7,268,664 174,710 2,305,353 (9,501,171 ) 284,416 Total liabilities 13,591,137 8,716,530 4,283,381 6,619,846 (15,741,754 ) 17,469,140 Redeemable noncontrolling interests — — — 79,778 — 79,778 MGM Resorts International stockholders' equity 7,577,061 20,589,328 4,443,089 4,040,676 (29,073,093 ) 7,577,061 Noncontrolling interests — — 1,624,650 2,409,413 — 4,034,063 Total stockholders' equity 7,577,061 20,589,328 6,067,739 6,450,089 (29,073,093 ) 11,611,124 $ 21,168,198 $ 29,305,858 $ 10,351,120 $ 13,149,713 $ (44,814,847 ) $ 29,160,042 CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) INFORMATION Three Months Ended June 30, 2018 Guarantor Non-Guarantor Subsidiaries Parent Subsidiaries MGP Other Elimination Consolidated (In thousands) Revenues $ — $ 1,937,394 $ 220,390 $ 921,382 $ (220,471 ) $ 2,858,695 Equity in subsidiaries' earnings 309,334 22,519 — — (331,853 ) — Expenses Casino and hotel operations 2,562 1,094,872 — 572,061 (81 ) 1,669,414 General and administrative 2,408 315,659 27,219 120,386 (27,219 ) 438,453 Corporate expense 39,707 53,652 10,746 5,192 (5,859 ) 103,438 Preopening and start-up expenses — 1,937 — 17,140 — 19,077 Property transactions, net — 17,083 14,426 (113 ) (14,426 ) 16,970 Depreciation and amortization — 158,753 67,474 137,440 (67,459 ) 296,208 44,677 1,641,956 119,865 852,106 (115,044 ) 2,543,560 Income (loss) from unconsolidated affiliates — 48,294 — (354 ) — 47,940 Operating income 264,657 366,251 100,525 68,922 (437,280 ) 363,075 Interest expense, net of amounts capitalized (115,531 ) (156 ) (49,276 ) (16,530 ) — (181,493 ) Other, net 15,356 (118,368 ) (1,927 ) (49,288 ) 136,778 (17,449 ) Income before income taxes 164,482 247,727 49,322 3,104 (300,502 ) 164,133 Benefit (provision) for income taxes (40,705 ) — (1,263 ) 18,258 — (23,710 ) Net income 123,777 247,727 48,059 21,362 (300,502 ) 140,423 Less: Net income attributable to noncontrolling interests — — (13,146 ) (3,500 ) — (16,646 ) Net income attributable to MGM Resorts International $ 123,777 $ 247,727 $ 34,913 $ 17,862 $ (300,502 ) $ 123,777 Net income $ 123,777 $ 247,727 $ 48,059 $ 21,362 $ (300,502 ) $ 140,423 Other comprehensive income, net of tax: Foreign currency translation adjustment 583 583 — 1,400 (1,166 ) 1,400 Unrealized gain on cash flow hedges 3,660 — 6,281 — (4,606 ) 5,335 Other comprehensive income 4,243 583 6,281 1,400 (5,772 ) 6,735 Comprehensive income 128,020 248,310 54,340 22,762 (306,274 ) 147,158 Less: Comprehensive income attributable to noncontrolling interests — — (14,821 ) (4,317 ) — (19,138 ) Comprehensive income attributable to MGM Resorts International $ 128,020 $ 248,310 $ 39,519 $ 18,445 $ (306,274 ) $ 128,020 Six Months Ended June 30, 2018 Guarantor Non-Guarantor Subsidiaries Parent Subsidiaries MGP Other Elimination Consolidated (In thousands) Revenues $ — $ 3,827,187 $ 436,229 $ 1,854,329 $ (436,813 ) $ 5,680,932 Equity in subsidiaries' earnings 637,601 67,054 — — (704,655 ) — Expenses Casino and hotel operations 5,277 2,144,891 — 1,155,040 (584 ) 3,304,624 General and administrative 4,758 626,509 49,718 225,076 (49,718 ) 856,343 Corporate expense 79,008 104,059 21,227 10,544 (11,891 ) 202,947 Preopening and start-up expenses — 8,679 — 77,315 — 85,994 Property transactions, net — 22,225 18,512 643 (18,512 ) 22,868 Depreciation and amortization — 315,400 136,465 249,588 (136,423 ) 565,030 89,043 3,221,763 225,922 1,718,206 (217,128 ) 5,037,806 Income (loss) from unconsolidated affiliates — 79,926 — (220 ) — 79,706 Operating income 548,558 752,404 210,307 135,903 (924,340 ) 722,832 Interest expense, net of amounts capitalized (225,089 ) (293 ) (98,506 ) (25,514 ) — (349,402 ) Other, net 31,128 (226,318 ) (3,079 ) (95,975 ) 265,869 (28,375 ) Income before income taxes 354,597 525,793 108,722 14,414 (658,471 ) 345,055 Benefit (provision) for income taxes (7,376 ) — (2,494 ) 71,539 — 61,669 Net income 347,221 525,793 106,228 85,953 (658,471 ) 406,724 Less: Net income attributable to noncontrolling interests — — (28,976 ) (30,527 ) — (59,503 ) Net income attributable to MGM Resorts International $ 347,221 $ 525,793 $ 77,252 $ 55,426 $ (658,471 ) $ 347,221 Net income $ 347,221 $ 525,793 $ 106,228 $ 85,953 $ (658,471 ) $ 406,724 Other comprehensive income (loss), net of tax: Foreign currency translation adjustment (12,785 ) (12,785 ) — (22,752 ) 25,570 (22,752 ) Unrealized gain on cash flow hedges 13,158 — 22,636 — (16,603 ) 19,191 Other comprehensive income (loss) 373 (12,785 ) 22,636 (22,752 ) 8,967 (3,561 ) Comprehensive income 347,594 513,008 128,864 63,201 (649,504 ) 403,163 Less: Comprehensive income attributable to noncontrolling interests — — (35,009 ) (20,560 ) — (55,569 ) Comprehensive income attributable to MGM Resorts International $ 347,594 $ 513,008 $ 93,855 $ 42,641 $ (649,504 ) $ 347,594 CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS INFORMATION Six Months Ended June 30, 2018 Guarantor Non-Guarantor Subsidiaries Parent Subsidiaries MGP Other Elimination Consolidated (In thousands) Cash flows from operating activities Net cash provided by (used in) operating activities $ (224,359 ) $ 624,484 $ 284,333 $ 408,693 $ — $ 1,093,151 Cash flows from investing activities Capital expenditures, net of construction payable — (367,713 ) (190 ) (493,858 ) — (861,761 ) Dispositions of property and equipment — 435 — 5 — 440 Investments in unconsolidated affiliates — (2,503 ) — — — (2,503 ) Distributions from unconsolidated affiliates in excess of cumulative earnings — 200,000 — — — 200,000 Intercompany accounts — (515,927 ) — — 515,927 — Other — (9,916 ) — (5,693 ) — (15,609 ) Net cash used in investing activities — (695,624 ) (190 ) (499,546 ) 515,927 (679,433 ) Cash flows from financing activities Net borrowings (repayments) under bank credit facilities – maturities of 90 days or less (141,250 ) — (13,000 ) (206,624 ) — (360,874 ) Issuance of long-term debt 1,000,000 — — — — 1,000,000 Debt issuance costs (14,414 ) — (17,490 ) (32,873 ) — (64,777 ) Dividends paid to common shareholders (133,334 ) — — — — (133,334 ) Distributions to noncontrolling interest owners — — (59,553 ) (41,854 ) — (101,407 ) MGP dividends paid to consolidated subsidiaries — — (163,913 ) — 163,913 — Purchases of common stock (957,264 ) — — — — (957,264 ) Retirement of debentures — (2,265 ) — — — (2,265 ) Intercompany accounts 505,289 48,052 — 126,499 (679,840 ) — Other (9,393 ) (4,200 ) — (4,637 ) — (18,230 ) Net cash provided by (used in) financing activities 249,634 41,587 (253,956 ) (159,489 ) (515,927 ) (638,151 ) Effect of exchange rate on cash — — — (2,690 ) — (2,690 ) Cash and cash equivalents Net increase (decrease) for the period 25,275 (29,553 ) 30,187 (253,032 ) — (227,123 ) Balance, beginning of period 26,870 311,043 259,722 902,360 — 1,499,995 Balance, end of period $ 52,145 $ 281,490 $ 289,909 $ 649,328 $ — $ 1,272,872 CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) INFORMATION Three Months Ended June 30, 2017 Guarantor Non-Guarantor Subsidiaries Parent Subsidiaries MGP Other Elimination Consolidated (In thousands) Revenues $ — $ 1,907,756 $ 184,456 $ 745,312 $ (185,391 ) $ 2,652,133 Equity in subsidiaries' earnings 424,981 36,260 — — (461,241 ) — Expenses Casino and hotel operations 2,616 1,063,046 — 455,889 (935 ) 1,520,616 General and administrative 2,131 265,778 20,642 86,440 (20,642 ) 354,349 Corporate expense 31,488 45,347 2,833 (48 ) (172 ) 79,448 Preopening and start-up expenses — 2,131 — 18,962 — 21,093 Property transactions, net — 13,060 10,587 3,097 (13,501 ) 13,243 NV Energy exit expense — (40,629 ) — — — (40,629 ) Depreciation and amortization — 160,402 60,227 84,352 (60,227 ) 244,754 36,235 1,509,135 94,289 648,692 (95,477 ) 2,192,874 Income (loss) from unconsolidated affiliates — 40,652 — (13 ) — 40,639 Operating income 388,746 475,533 90,167 96,607 (551,155 ) 499,898 Interest expense, net of amounts capitalized (122,942 ) (176 ) (44,818 ) (6,122 ) — (174,058 ) Other, net 13,389 (119,693 ) (297 ) (27,857 ) 123,151 (11,307 ) Income before income taxes 279,193 355,664 45,052 62,628 (428,004 ) 314,533 Provision for income taxes (69,329 ) — (1,177 ) (3,154 ) — (73,660 ) Net income 209,864 355,664 43,875 59,474 (428,004 ) 240,873 Less: Net income attributable to noncontrolling interests — — (10,680 ) (20,329 ) — (31,009 ) Net income attributable to MGM Resorts International $ 209,864 $ 355,664 $ 33,195 $ 39,145 $ (428,004 ) $ 209,864 Net income $ 209,864 $ 355,664 $ 43,875 $ 59,474 $ (428,004 ) $ 240,873 Other comprehensive loss, net of tax: Foreign currency translation adjustment (14,018 ) (14,018 ) — (25,376 ) 28,036 (25,376 ) Unrealized loss on cash flow hedges (2,347 ) — (4,112 ) — 3,136 (3,323 ) Other comprehensive loss (16,365 ) (14,018 ) (4,112 ) (25,376 ) 31,172 (28,699 ) Comprehensive income 193,499 341,646 39,763 34,098 (396,832 ) 212,174 Less: Comprehensive income attributable to noncontrolling interests — — (9,705 ) (8,970 ) — (18,675 ) Comprehensive income attributable to MGM Resorts International $ 193,499 $ 341,646 $ 30,058 $ 25,128 $ (396,832 ) $ 193,499 Six Months Ended June 30, 2017 Guarantor Non-Guarantor Subsidiaries Parent Subsidiaries MGP Other Elimination Consolidated (In thousands) Revenues $ — $ 3,833,174 $ 368,355 $ 1,538,375 $ (370,205 ) $ 5,369,699 Equity in subsidiaries' earnings 827,050 88,418 — — (915,468 ) — Expenses Casino and hotel operations 5,125 2,114,466 — 935,244 (1,849 ) 3,052,986 General and administrative 4,113 563,979 41,129 175,045 (41,129 ) 743,137 Corporate expense 54,881 92,598 5,684 (240 ) (343 ) 152,580 Preopening and start-up expenses — 2,775 — 33,384 — 36,159 Property transactions, net — 14,607 17,442 3,246 (20,356 ) 14,939 NV Energy exit expense — (40,629 ) — — — (40,629 ) Depreciation and amortization — 323,101 121,911 171,422 (121,911 ) 494,523 64,119 3,070,897 186,166 1,318,101 (185,588 ) 4,453,695 Income (loss) from unconsolidated affiliates — 80,499 — (94 ) — 80,405 Operating income 762,931 931,194 182,189 220,180 (1,100,085 ) 996,409 Interest expense, net of amounts capitalized (246,298 ) (634 ) (89,454 ) (11,731 ) — (348,117 ) Other, net 27,476 (228,187 ) 247 (57,455 ) 238,874 (19,045 ) Income before income taxes 544,109 702,373 92,982 150,994 (861,211 ) 629,247 Provision for income taxes (127,833 ) — (2,415 ) (5,552 ) — (135,800 ) Net income 416,276 702,373 90,567 145,442 (861,211 ) 493,447 Less: Net income attributable to noncontrolling interests — — (22,028 ) (55,143 ) — (77,171 ) Net income attributable to MGM Resorts International $ 416,276 $ 702,373 $ 68,539 $ 90,299 $ (861,211 ) $ 416,276 Net income $ 416,276 $ 702,373 $ 90,567 $ 145,442 $ (861,211 ) $ 493,447 Other comprehensive loss, net of tax: Foreign currency translation adjustment (21,370 ) (21,370 ) — (38,309 ) 42,740 (38,309 ) Unrealized loss on cash flow hedges (2,831 ) — (4,746 ) — 3,620 (3,957 ) Other comprehensive loss (24,201 ) (21,370 ) (4,746 ) (38,309 ) 46,360 (42,266 ) Comprehensive income 392,075 681,003 85,821 107,133 (814,851 ) 451,181 Less: Comprehensive income attributable to noncontrolling interests — — (20,903 ) (38,203 ) — (59,106 ) Comprehensive income attributable to MGM Resorts International $ 392,075 $ 681,003 $ 64,918 $ 68,930 $ (814,851 ) $ 392,075 CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS INFORMATION Six Months Ended June 30, 2017 Guarantor Non-Guarantor Subsidiaries Parent Subsidiaries MGP Other Elimination Consolidated (In thousands) Cash flows from operating activities Net cash provided by (used in) operating activities $ (384,587 ) $ 656,632 $ 230,718 $ 436,363 $ — $ 939,126 Cash flows from investing activities Capital expenditures, net of construction payable — (144,433 ) — (728,177 ) — (872,610 ) Dispositions of property and equipment — 174 — 119 — 293 Investments in unconsolidated affiliates — (4,773 ) — — — (4,773 ) Distributions from unconsolidated affiliates in excess of cumulative earnings — 300,000 — — — 300,000 Intercompany accounts — (886,611 ) — — 886,611 — Other — (6,560 ) — (9,128 ) — (15,688 ) Net cash used in investing activities — (742,203 ) — (737,186 ) 886,611 (592,778 ) Cash flows from financing activities Net borrowings (repayments) under bank credit facilities - maturities of 90 days or less (6,250 ) — (25,125 ) 236,227 — 204,852 Debt issuance costs — — (1,024 ) (4,379 ) — (5,403 ) Dividends paid to common shareholders (126,429 ) — — — — (126,429 ) Distributions to noncontrolling interest owners — — (44,564 ) (45,308 ) — (89,872 ) MGP dividends paid to consolidated subsidiaries — — (143,655 ) — 143,655 — Intercompany accounts 924,157 58,984 — 47,125 (1,030,266 ) — Other (11,702 ) — — (4,391 ) — (16,093 ) Net cash provided by (used in) financing activities 779,776 58,984 (214,368 ) 229,274 (886,611 ) (32,945 ) Effect of exchange rate on cash — — — (2,922 ) — (2,922 ) Cash and cash equivalents Net increase (decrease) for the period 395,189 (26,587 ) 16,350 (74,471 ) — 310,481 Balance, beginning of period 99,995 307,713 360,492 678,381 — 1,446,581 Balance, end of period $ 495,184 $ 281,126 $ 376,842 $ 603,910 $ — $ 1,757,062

Basis of Presentation and Sig18

Basis of Presentation and Significant Accounting Policies (Policies)	6 Months Ended
	Jun. 30, 2018
Accounting Policies [Abstract]
Basis of presentation	Basis of presentation. As permitted by the rules and regulations of the Securities and Exchange Commission, certain information and footnote disclosures normally included in financial statements prepared in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”) have been condensed or omitted. These consolidated financial statements should be read in conjunction with the Company’s 2017 annual consolidated financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2017. In the opinion of management, the accompanying unaudited consolidated financial statements contain all adjustments, which include only normal recurring adjustments, necessary to present fairly the Company’s interim financial statements. The results for such periods are not necessarily indicative of the results to be expected for the full year.
Principles of consolidation	Principles of consolidation. Management has determined that MGP is a variable interest entity (“VIE”) because the Class A equity investors as a group lack the power through voting or similar rights to direct the activities of such entity that most significantly impact such entity’s economic performance. The Company has determined that it is the primary beneficiary of MGP and consolidates MGP because ( i) its ownership of MGP’s single Class B share entitles it to a majority of the total voting power of MGP’s shares, and (ii) the exchangeable nature of the Operating Partnership units owned provide the Company the right to receive benefits from MGP that could potentially be significant to MGP. The Company has recorded MGP’s ownership interest in the Operating Partnership of 26.7% as of June 30, 2018 as noncontrolling interest in the Company’s consolidated financial statements. As of June 30, 2018 and December 31, 2017, on a consolidated basis, MGP had total assets of $10.3 billion and $10.4 billion, respectively, primarily related to its real estate investments, and total liabilities of $4.3 billion as of both dates, primarily related to its indebtedness.
Property and equipment	Property and equipment. Property and equipment are stated at cost. A significant amount of the Company’s property and equipment was acquired through business combinations and therefore recognized at fair value at the acquisition date. Gains and losses on dispositions of property and equipment are included in the determination of income or loss. Maintenance costs are expensed as incurred. As of June 30, 2018 and December 31, 2017, the Company had accrued $60 million and $28 million, respectively, for property and equipment within accounts payable, and $1 million and $34 million, respectively, related to construction retention within other long-term liabilities.
Revenue recognition	Revenue recognition. The Company’s revenue contracts with customers consist of casino wager transactions, hotel room sales, food and beverage transactions, entertainment shows, and retail transactions. The transaction price for a casino wager is the difference between gaming wins and losses (“net win”). In certain circumstances, the Company offers discounts on markers, which is estimated based upon historical business practice, and recorded as a reduction of casino revenue. Commissions rebated to gaming promoters and VIP players at MGM China are also recorded as a reduction of casino revenue. The Company accounts for casino revenue on a portfolio basis given the similar characteristics of wagers by recognizing net win per gaming day versus on an individual wager basis. For casino wager transactions that include complimentary goods and services provided by the Company to gaming patrons on a discretionary basis to incentivize gaming, the Company allocates revenue to the good or service delivered based upon stand-alone selling price (“SSP”). Discretionary complimentaries provided by the Company and supplied by third parties are recognized as an operating expense. The Company accounts for complimentaries on a portfolio basis given the similar characteristics of the incentives by recognizing redemption per gaming day. For casino wager transactions that include incentives earned by customers under the Company’s loyalty programs, the Company allocates a portion of net win based upon the SSP of such incentive (less estimated breakage). This allocation is deferred and recognized as revenue when the customer redeems the incentive. When redeemed, revenue is recognized in the department that provides the goods or service. Redemption of loyalty incentives at third party outlets are deducted from the loyalty liability and amounts owed are paid to the third party, with any discount received recorded as other revenue. During the three and six months ended June 30, 2018, commissions, complimentaries, and other incentives provided to gaming customers were $520 million and $1.1 billion, respectively. During the three and six months ended June 30, 2017, commissions, complimentaries, and other incentives provided to gaming customers were $473 million and $958 million, respectively. After allocating revenue to other goods and services provided as part of casino wager transactions, the Company records the residual amount to casino revenue. The transaction price of rooms, food and beverage, and retail contracts is the net amount collected from the customer for such good and services. The transaction price for such contracts is recorded as revenue when the good or service is transferred to the customer over their stay at the hotel or when the delivery is made for the food & beverage and retail & other contracts. Sales and usage-based taxes are excluded from revenues. For some arrangements, the Company acts as an agent in that it arranges for another party to transfer goods and services, which primarily include certain of the Company’s entertainment shows as well as customer rooms arranged by online travel agents. The Company also has other contracts that include multiple goods and services, such as packages that bundle food, beverage, or entertainment offerings with hotel stays and convention services. For such arrangements, the Company allocates revenue to each good or service based on its relative SSP. The Company primarily determines the SSP of rooms, food and beverage, entertainment, and retail goods and services based on the amount that the Company charges when sold separately in similar circumstances to similar customers. Contract and Contract-Related Liabilities. There may be a difference between the timing of cash receipts from the customer and the recognition of revenue, resulting in a contract or contract-related liability. The Company generally has three types of liabilities related to contracts with customers: (1) outstanding chip liability, which represents the amounts owned in exchange for gaming chips held by a customer, (2) loyalty program obligations, which represents the deferred allocation of revenue relating to loyalty program incentives earned, as discussed above, and (3) customer advances and other, which is primarily funds deposited by customers before gaming play occurs (“casino front money”) and advance payments on goods and services yet to be provided such as advance ticket sales and deposits on rooms and convention space or for unpaid wagers. These liabilities are generally expected to be recognized as revenue within one year of being purchased, earned, or deposited and are recorded within “Other accrued liabilities” on the Company’s consolidated balance sheets. The following table summarizes the activity related to contract and contract-related liabilities: Outstanding Chip Liability Loyalty Program Customer Advances and Other 2018 2017 2018 2017 2018 2017 (in thousands) Balance at January 1 $ 597,753 $ 227,538 $ 91,119 $ 88,379 $ 539,626 $ 437,287 Balance at June 30 759,049 319,878 98,308 88,195 510,750 425,197 Increase / (decrease) $ 161,296 $ 92,340 $ 7,189 $ (184 ) $ (28,876 ) $ (12,090 ) Reimbursed costs. Costs reimbursed pursuant to management services are recognized as revenue in the period it incurs the costs as this reflects when the Company performs its related performance obligation and is entitled to reimbursement. Reimbursed costs relate primarily to the Company’s management of CityCenter. Revenue by source. The Company presents the revenue earned disaggregated by the type or nature of the good or service (casino, room, food and beverage, and entertainment, retail and other) and by relevant geographic region within Note 9. Lease revenues earned by the Company from third-parties are classified within the line item corresponding to the type or nature of the tenant’s good or service. During the three and six months ended June 30, 2018, lease revenues include $12 million and $25 million recorded within food and beverage revenue, respectively, and $22 million and $43 million recorded within entertainment, retail, and other revenue for the same such periods, respectively. During the three and six months ended June 30, 2017, lease revenues include $14 million and $26 million recorded within food and beverage revenue, respectively, and $19 million and $39 million recorded within entertainment, retail, and other revenue for the same such periods, respectively.
Recently issued accounting standards	Recently issued accounting standards. In May 2014, the FASB issued the ASC 606, “Revenue from Contracts with Customers (Topic 606)” which outlines a new, single comprehensive model for entities to use in accounting for revenue arising from contracts with customers and supersedes most current revenue recognition guidance, including industry-specific guidance. Under the standard, revenue is recognized when a customer obtains control of promised goods or services in an amount that reflects the consideration the entity expects to receive in exchange for those goods and services. The Company adopted ASC 606 on a full retrospective basis effective January 1, 2018. The most significant impacts of adoption of the new accounting pronouncement were as follows: • Promotional Allowances: The Company no longer recognizes revenues for goods and services provided to customers for free as an inducement to gamble as gross revenue with a corresponding offset to promotional allowances to arrive at net revenues, and accordingly the promotional allowances line item has been removed. The majority of such amounts previously included in promotional allowances now offset casino revenues based on an allocation of revenues to performance obligations using stand-alone selling price. This change resulted in a reclassification of revenue between revenue line items; • Loyalty Accounting: As discussed within Revenue Recognition retained earnings as of January 1, 2015 of $29 million, net of tax of $15 million, with a corresponding increase primarily to other accrued liabilities, • Gaming Promoter Commission: Commissions paid to gaming promoters under MGM China’s incentive program are now fully reflected as a reduction in casino revenue. This change resulted in a decrease in casino expense and a corresponding decrease in casino revenue; • Gross versus Net Presentation: Mandatory service charges on food and beverage and wide area progressive operator fees are recorded gross, that is, the amount received from the customer has been recorded as revenue with the corresponding amount paid as an expense. These changes resulted in an increase in revenue with a corresponding increase in expense; • Estimated Cost of Promotional Allowances: The Company no longer reclassifies the estimated cost of complimentaries provided to the gaming patron from other expense line items to the casino expense line item. This change resulted in a reclassification between expense line items. These changes, and other less significant adjustments that were required upon adoption, did not have an aggregate material impact on operating income, net income, or cash flows . The following tables show the increase/(decrease) to our 2017 quarters and full-year 2017, 2016, and 2015 income statement line items as follows: Three Months Ended Twelve Months Ended Dec 31, 2017 Sep 30, 2017 June 30, 2017 Mar 31, 2017 Dec 31, 2017 Dec 31, 2016 Dec 31, 2015 (in thousands) Increase/(decrease) Revenues Casino $ (241,045 ) $ (260,644 ) $ (232,305 ) $ (233,915 ) $ (967,909 ) $ (828,364 ) $ (782,222 ) Rooms (2,987 ) 8,518 (715 ) (3,455 ) 1,361 (20,814 ) (42,152 ) Food and beverage 16,296 21,967 18,552 24,867 81,682 87,895 72,990 Entertainment, retail, and other (1,204 ) (2,867 ) (3,328 ) (1,169 ) (8,568 ) (9,142 ) (10,867 ) (228,940 ) (233,026 ) (217,796 ) (213,672 ) (893,434 ) (770,425 ) (762,251 ) Promotional allowances 229,297 236,460 228,193 223,059 917,009 793,571 751,773 357 3,434 10,397 9,387 23,575 23,146 (10,478 ) Expenses Casino (147,081 ) (147,144 ) (135,898 ) (137,660 ) (567,783 ) (504,561 ) (519,569 ) Rooms 37,260 35,370 34,381 33,833 140,844 121,551 113,560 Food and beverage 100,043 104,786 101,516 103,317 409,662 367,166 353,364 Entertainment, retail, and other 10,220 11,779 11,676 10,718 44,393 41,401 39,306 General and administrative (68 ) (111 ) (114 ) (47 ) (340 ) (83 ) 9 Corporate expense (2 ) — 40 (41 ) (3 ) (69 ) (71 ) 372 4,680 11,601 10,120 26,773 25,405 (13,401 ) Income from unconsolidated affiliates 25 89 56 63 233 671 471 Operating income (loss) 10 (1,157 ) (1,148 ) (670 ) (2,965 ) (1,588 ) 3,394 Income (loss) before income taxes 10 (1,157 ) (1,148 ) (670 ) (2,965 ) (1,588 ) 3,394 Benefit (provision) for income taxes (6,310 ) 405 401 235 (5,269 ) 556 (1,189 ) Net income (loss) (6,300 ) (752 ) (747 ) (435 ) (8,234 ) (1,032 ) 2,205 Net income (loss) attributable to MGM Resorts International $ (6,300 ) $ (752 ) $ (747 ) $ (435 ) $ (8,234 ) $ (1,032 ) $ 2,205 Net income (loss) per share of common stock attributable to MGM Resorts International Basic $ (0.01 ) $ — $ (0.01 ) $ — $ (0.01 ) $ — $ — Diluted $ (0.01 ) $ — $ — $ — $ (0.01 ) $ — $ — In February 2016, the FASB issued ASC 842 “Leases (Topic 842),” which replaces the existing guidance in ASC 840, “Leases.” ASC 842 is effective for fiscal years, and interim periods within those years, beginning after December 15, 2018. ASC 842 requires a dual approach for lessee accounting under which a lessee would account for leases as finance leases or operating leases. Both finance leases and operating leases will result in the lessee recognizing a right-of-use (“ROU”) asset and a corresponding lease liability. For finance leases, the lessee would recognize interest expense and amortization of the ROU asset and for operating leases the lessee would recognize a straight-line total lease expense. The Company is currently assessing the impact the adoption of ASC 842 will have on its consolidated financial statements and footnote disclosures. In January 2018, the Company adopted ASU No. 2016-15, “Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments (a consensus of the Emerging Issues Task Force),” (“ASU 2016-15”). ASU 2016-15 amends the guidance of ASC 230 on the classification of certain cash receipts and payments in the statement of cash flows. The primary purpose of ASU 2016-15 is to reduce the diversity in practice that has resulted from the lack of consistent principles, specifically clarifying the guidance on eight cash flow issues. The adoption of ASU 2016-15 did not have a material effect on the Company’s consolidated financial statements and footnote disclosures. In March 2018, the FASB issued ASU No. 2018-05, “Income Taxes (Topic 740) - Amendments to SEC Paragraphs Pursuant to SEC Staff Accounting Bulletin No. 118,” ("ASU 2018-05"). ASU 2018-05 provides guidance on accounting for the tax effects of the U.S. Tax Cuts and Jobs Act (the “Tax Act”) pursuant to the Staff Accounting Bulletin No. 118, which allows companies to complete the accounting under ASC 740 within a one-year measurement period from the Tax Act enactment date, which occurred in the financial statements for the year ended December 31, 2017. The Company continues to evaluate the tax effects of the Tax Act (see Note 5) and expects to finalize its provisional amounts by the fourth quarter of 2018.

Basis of Presentation and Sig19

Basis of Presentation and Significant Accounting Policies (Tables)	6 Months Ended
	Jun. 30, 2018
Schedule of Contract and Contract - Related Liabilities	The following table summarizes the activity related to contract and contract-related liabilities: Outstanding Chip Liability Loyalty Program Customer Advances and Other 2018 2017 2018 2017 2018 2017 (in thousands) Balance at January 1 $ 597,753 $ 227,538 $ 91,119 $ 88,379 $ 539,626 $ 437,287 Balance at June 30 759,049 319,878 98,308 88,195 510,750 425,197 Increase / (decrease) $ 161,296 $ 92,340 $ 7,189 $ (184 ) $ (28,876 ) $ (12,090 )
Accounting Standards Update 2014-09
Schedule of Increase/(Decrease) By Adopting Accounting Standards in Income Statement Line items	These changes, and other less significant adjustments that were required upon adoption, did not have an aggregate material impact on operating income, net income, or cash flows . The following tables show the increase/(decrease) to our 2017 quarters and full-year 2017, 2016, and 2015 income statement line items as follows: Three Months Ended Twelve Months Ended Dec 31, 2017 Sep 30, 2017 June 30, 2017 Mar 31, 2017 Dec 31, 2017 Dec 31, 2016 Dec 31, 2015 (in thousands) Increase/(decrease) Revenues Casino $ (241,045 ) $ (260,644 ) $ (232,305 ) $ (233,915 ) $ (967,909 ) $ (828,364 ) $ (782,222 ) Rooms (2,987 ) 8,518 (715 ) (3,455 ) 1,361 (20,814 ) (42,152 ) Food and beverage 16,296 21,967 18,552 24,867 81,682 87,895 72,990 Entertainment, retail, and other (1,204 ) (2,867 ) (3,328 ) (1,169 ) (8,568 ) (9,142 ) (10,867 ) (228,940 ) (233,026 ) (217,796 ) (213,672 ) (893,434 ) (770,425 ) (762,251 ) Promotional allowances 229,297 236,460 228,193 223,059 917,009 793,571 751,773 357 3,434 10,397 9,387 23,575 23,146 (10,478 ) Expenses Casino (147,081 ) (147,144 ) (135,898 ) (137,660 ) (567,783 ) (504,561 ) (519,569 ) Rooms 37,260 35,370 34,381 33,833 140,844 121,551 113,560 Food and beverage 100,043 104,786 101,516 103,317 409,662 367,166 353,364 Entertainment, retail, and other 10,220 11,779 11,676 10,718 44,393 41,401 39,306 General and administrative (68 ) (111 ) (114 ) (47 ) (340 ) (83 ) 9 Corporate expense (2 ) — 40 (41 ) (3 ) (69 ) (71 ) 372 4,680 11,601 10,120 26,773 25,405 (13,401 ) Income from unconsolidated affiliates 25 89 56 63 233 671 471 Operating income (loss) 10 (1,157 ) (1,148 ) (670 ) (2,965 ) (1,588 ) 3,394 Income (loss) before income taxes 10 (1,157 ) (1,148 ) (670 ) (2,965 ) (1,588 ) 3,394 Benefit (provision) for income taxes (6,310 ) 405 401 235 (5,269 ) 556 (1,189 ) Net income (loss) (6,300 ) (752 ) (747 ) (435 ) (8,234 ) (1,032 ) 2,205 Net income (loss) attributable to MGM Resorts International $ (6,300 ) $ (752 ) $ (747 ) $ (435 ) $ (8,234 ) $ (1,032 ) $ 2,205 Net income (loss) per share of common stock attributable to MGM Resorts International Basic $ (0.01 ) $ — $ (0.01 ) $ — $ (0.01 ) $ — $ — Diluted $ (0.01 ) $ — $ — $ — $ (0.01 ) $ — $ —

Investments in and Advances t20

Investments in and Advances to Unconsolidated Affiliates (Tables)	6 Months Ended
	Jun. 30, 2018
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: June 30, December 31, 2018 2017 (In thousands) CityCenter Holdings, LLC – CityCenter (50%) $ 663,785 $ 808,220 Elgin Riverboat Resort–Riverboat Casino – Grand Victoria (50%) 121,978 124,342 Las Vegas Arena Company, LLC (42.5%) 76,356 76,619 Other 20,821 24,116 $ 882,940 $ 1,033,297
Schedule of Share of Net Income From Unconsolidated Affiliates	The Company recorded its share of net income from unconsolidated affiliates, including adjustments for basis differences, as follows: Three Months Ended Six Months Ended June 30, June 30, 2018 2017 2018 2017 (In thousands) Income from unconsolidated affiliates $ 47,940 $ 40,639 $ 79,706 $ 80,405 Preopening and start-up expenses — — (3,321 ) — Non-operating items from unconsolidated affiliates (11,068 ) (10,556 ) (20,078 ) (17,477 ) $ 36,872 $ 30,083 $ 56,307 $ 62,928

Long-Term Debt (Tables)

Long-Term Debt (Tables)	6 Months Ended
	Jun. 30, 2018
Debt Disclosure [Abstract]
Schedule of Long-Term Debt	Long-term debt consisted of the following: June 30, December 31, 2018 2017 (In thousands) Senior credit facility $ 231,250 $ 372,500 Operating Partnership senior credit facility 2,078,375 2,091,375 MGM China credit facility 2,085,994 2,301,584 $850 million 8.625% senior notes, due 2019 850,000 850,000 $500 million 5.25% senior notes, due 2020 500,000 500,000 $1,000 million 6.75% senior notes, due 2020 1,000,000 1,000,000 $1,250 million 6.625% senior notes, due 2021 1,250,000 1,250,000 $1,000 million 7.75% senior notes, due 2022 1,000,000 1,000,000 $1,250 million 6% senior notes, due 2023 1,250,000 1,250,000 $1,050 million 5.625% Operating Partnership senior notes, due 2024 1,050,000 1,050,000 $1,000 million 5.75% senior notes, due 2025 1,000,000 — $500 million 4.50% Operating Partnership senior notes, due 2026 500,000 500,000 $500 million 4.625% senior notes, due 2026 500,000 500,000 $350 million 4.50% Operating Partnership senior notes, due 2028 350,000 350,000 $0.6 million 7% debentures, due 2036 552 552 $2.3 million 6.7% debentures, due 2096 — 2,265 13,646,171 13,018,276 Less: Premiums, discounts, and unamortized debt issuance costs, net (132,830 ) (109,182 ) 13,513,341 12,909,094 Less: Current portion of long-term debt, net — (158,042 ) $ 13,513,341 $ 12,751,052

Income Per Share of Common St22

Income Per Share of Common Stock (Tables)	6 Months Ended
	Jun. 30, 2018
Earnings Per Share [Abstract]
Schedule of Diluted Weighted-Average Number of Common and Common Equivalent Shares Adjustments for Potential Dilution of Share-Based Awards Outstanding	Diluted weighted-average common and common equivalent shares include adjustments for potential dilution of share-based awards outstanding under the Company’s stock compensation plan. Three Months Ended Six Months Ended June 30, June 30, 2018 2017 2018 2017 (In thousands) Numerator: Net income attributable to MGM Resorts International $ 123,777 $ 209,864 $ 347,221 $ 416,276 Adjustment related to redeemable noncontrolling interests (5,986 ) (28 ) (10,584 ) (55 ) Net income available to common stockholders - basic 117,791 209,836 336,637 416,221 Potentially dilutive effect due to MGP and MGM China stock compensation plans (26 ) (62 ) (158 ) (129 ) Net income attributable to common stockholders - diluted $ 117,765 $ 209,774 $ 336,479 $ 416,092 Denominator: Weighted-average common shares outstanding - basic 548,433 574,931 556,586 574,668 Potential dilution from share-based awards 5,906 7,125 6,522 6,444 Weighted-average common and common equivalent shares - diluted 554,339 582,056 563,108 581,112 Antidilutive share-based awards excluded from the calculation of diluted earnings per share 2,441 2,078 1,305 2,641

Stockholders' Equity (Tables)

Stockholders' Equity (Tables)	6 Months Ended
	Jun. 30, 2018
Equity [Abstract]
Changes in Stockholders' Equity	The following table presents the Company’s changes in stockholders’ equity for the six months ended June 30, 2018: MGM Resorts International Total Stockholders' Noncontrolling Stockholders' Equity Interests Equity (In thousands) Balances, January 1, 2018 $ 7,577,061 $ 4,034,063 $ 11,611,124 Net income 347,221 55,084 402,305 Currency translation adjustment (12,785 ) (9,967 ) (22,752 ) Other comprehensive income - cash flow hedges 13,158 6,033 19,191 Stock-based compensation 31,172 2,752 33,924 Issuance of common stock pursuant to stock-based compensation awards (9,390 ) — (9,390 ) Issuance of performance-based share units 3,609 107 3,716 Distributions to noncontrolling interest owners — (63,855 ) (63,855 ) Dividend paid to common shareholders (133,334 ) — (133,334 ) MGP dividend payable to Class A shareholders — (30,492 ) (30,492 ) Repurchases of common stock (957,264 ) — (957,264 ) Adjustment of redeemable non-controlling interest to redemption value (10,584 ) — (10,584 ) Other (1,722 ) (926 ) (2,648 ) Balances, June 30, 2018 $ 6,847,142 $ 3,992,799 $ 10,839,941
Schedule of Changes in Accumulated Other Comprehensive Income Attributable to MGM Resorts International by Component	Changes in accumulated other comprehensive income attributable to MGM Resorts International are as follows: Currency Translation Cash Flow Adjustments Hedges Other Total (In thousands) Balance, January 1, 2018 $ (11,450 ) $ 6,668 $ 1,172 $ (3,610 ) Other comprehensive income (loss) before reclassifications (22,752 ) 18,357 — (4,395 ) Amounts reclassified from accumulated other comprehensive income to interest expense — 834 — 834 Other comprehensive income (loss), net of tax (22,752 ) 19,191 — (3,561 ) Less: Other comprehensive (income) loss attributable to noncontrolling interest 9,967 (6,033 ) — 3,934 Balance, June 30, 2018 $ (24,235 ) $ 19,826 $ 1,172 $ (3,237 )

Segment Information (Tables)

Segment Information (Tables)	6 Months Ended
	Jun. 30, 2018
Segment Reporting [Abstract]
Schedule of Segment Information	The following tables present the Company’s segment information: Three Months Ended Six Months Ended June 30, June 30, 2018 2017 2018 2017 (In thousands) Net revenue Domestic resorts Casino $ 833,398 $ 774,712 $ 1,674,095 $ 1,596,378 Rooms 532,869 528,380 1,052,515 1,073,972 Food and beverage 466,663 473,652 901,337 931,579 Entertainment, retail and other 330,073 328,644 633,728 625,424 2,163,003 2,105,388 4,261,675 4,227,353 MGM China Casino 496,895 397,200 1,047,490 846,147 Rooms 31,002 13,376 50,836 26,596 Food and beverage 28,104 11,445 48,841 22,854 Entertainment, retail and other 5,349 1,890 10,044 3,730 561,350 423,911 1,157,211 899,327 Reportable segment net revenues 2,724,353 2,529,299 5,418,886 5,126,680 Corporate and other 134,342 122,834 262,046 243,019 $ 2,858,695 $ 2,652,133 $ 5,680,932 $ 5,369,699 Adjusted Property EBITDA Domestic resorts $ 625,720 $ 656,899 $ 1,242,087 $ 1,304,096 MGM China 119,875 118,906 271,626 264,103 Reportable segment Adjusted Property EBITDA 745,595 775,805 1,513,713 1,568,199 Other operating expense Corporate and other (50,265 ) (37,446 ) (116,989 ) (66,798 ) NV Energy exit expense — 40,629 — 40,629 Preopening and start-up expenses (19,077 ) (21,093 ) (85,994 ) (36,159 ) Property transactions, net (16,970 ) (13,243 ) (22,868 ) (14,939 ) Depreciation and amortization (296,208 ) (244,754 ) (565,030 ) (494,523 ) Operating income 363,075 499,898 722,832 996,409 Non-operating income (expense) Interest expense, net of amounts capitalized (181,493 ) (174,058 ) (349,402 ) (348,117 ) Non-operating items from unconsolidated affiliates (11,068 ) (10,556 ) (20,078 ) (17,477 ) Other, net (6,381 ) (751 ) (8,297 ) (1,568 ) (198,942 ) (185,365 ) (377,777 ) (367,162 ) Income before income taxes 164,133 314,533 345,055 629,247 Benefit (provision) for income taxes (23,710 ) (73,660 ) 61,669 (135,800 ) Net income 140,423 240,873 406,724 493,447 Less: Net income attributable to noncontrolling interests (16,646 ) (31,009 ) (59,503 ) (77,171 ) Net income attributable to MGM Resorts International $ 123,777 $ 209,864 $ 347,221 $ 416,276

Condensed Consolidating Finan25

Condensed Consolidating Financial Information (Tables)	6 Months Ended
	Jun. 30, 2018
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Schedule of Condensed Consolidating Balance Sheet Information	CONDENSED CONSOLIDATING BALANCE SHEET INFORMATION At June 30, 2018 Guarantor Non-Guarantor Subsidiaries Parent Subsidiaries MGP Other Elimination Consolidated (In thousands) Current assets $ 81,185 $ 945,675 $ 294,979 $ 765,156 $ (3,879 ) $ 2,083,116 Property and equipment, net — 13,539,895 9,880,658 6,334,519 (9,891,994 ) 19,863,078 Investments in subsidiaries 21,713,553 3,403,939 — — (25,117,492 ) — Investments in the MGP Operating Partnership — 3,503,564 — 847,376 (4,350,940 ) — Investments in and advances to unconsolidated affiliates — 852,698 — 5,242 25,000 882,940 Intercompany accounts — 6,514,427 — — (6,514,427 ) — Other non-current assets 58,616 974,909 94,428 5,063,874 (43,801 ) 6,148,026 $ 21,853,354 $ 29,735,107 $ 10,270,065 $ 13,016,167 $ (45,897,533 ) $ 28,977,160 Current liabilities $ 142,431 $ 1,425,041 $ 149,275 $ 1,568,900 $ (220,854 ) $ 3,064,793 Intercompany accounts 6,351,967 — 147 162,313 (6,514,427 ) — Deferred income taxes, net 940,949 — 28,544 285,448 (28,544 ) 1,226,397 Long-term debt, net 7,532,585 570 3,923,224 2,056,962 — 13,513,341 Other long-term obligations 38,280 7,235,916 194,572 2,259,167 (9,482,215 ) 245,720 Total liabilities 15,006,212 8,661,527 4,295,762 6,332,790 (16,246,040 ) 18,050,251 Redeemable noncontrolling interests — — — 86,968 — 86,968 MGM Resorts International stockholders' equity 6,847,142 21,073,580 4,374,317 4,203,596 (29,651,493 ) 6,847,142 Noncontrolling interests — — 1,599,986 2,392,813 — 3,992,799 Total stockholders' equity 6,847,142 21,073,580 5,974,303 6,596,409 (29,651,493 ) 10,839,941 $ 21,853,354 $ 29,735,107 $ 10,270,065 $ 13,016,167 $ (45,897,533 ) $ 28,977,160 At December 31, 2017 Guarantor Non-Guarantor Subsidiaries Parent Subsidiaries MGP Other Elimination Consolidated (In thousands) Current assets $ 78,909 $ 1,015,802 $ 266,627 $ 1,022,340 $ (7,323 ) $ 2,376,355 Property and equipment, net — 13,521,221 10,021,938 6,125,722 (10,033,422 ) 19,635,459 Investments in subsidiaries 21,040,147 3,304,768 — — (24,344,915 ) — Investments in the MGP Operating Partnership — 3,549,063 — 862,037 (4,411,100 ) — Investments in and advances to unconsolidated affiliates — 1,002,903 — 5,394 25,000 1,033,297 Intercompany accounts — 5,998,499 — — (5,998,499 ) — Other non-current assets 49,142 913,602 62,555 5,134,220 (44,588 ) 6,114,931 $ 21,168,198 $ 29,305,858 $ 10,351,120 $ 13,149,713 $ (44,814,847 ) $ 29,160,042 Current liabilities $ 153,159 $ 1,445,031 $ 144,537 $ 1,609,110 $ (213,540 ) $ 3,138,297 Intercompany accounts 5,783,578 — 962 213,959 (5,998,499 ) — Deferred income taxes, net 934,966 — 28,544 360,409 (28,544 ) 1,295,375 Long-term debt, net 6,682,574 2,835 3,934,628 2,131,015 — 12,751,052 Other long-term obligations 36,860 7,268,664 174,710 2,305,353 (9,501,171 ) 284,416 Total liabilities 13,591,137 8,716,530 4,283,381 6,619,846 (15,741,754 ) 17,469,140 Redeemable noncontrolling interests — — — 79,778 — 79,778 MGM Resorts International stockholders' equity 7,577,061 20,589,328 4,443,089 4,040,676 (29,073,093 ) 7,577,061 Noncontrolling interests — — 1,624,650 2,409,413 — 4,034,063 Total stockholders' equity 7,577,061 20,589,328 6,067,739 6,450,089 (29,073,093 ) 11,611,124 $ 21,168,198 $ 29,305,858 $ 10,351,120 $ 13,149,713 $ (44,814,847 ) $ 29,160,042
Schedule of Condensed Consolidating Statement of Operations and Comprehensive Income (Loss) Information	CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) INFORMATION Three Months Ended June 30, 2018 Guarantor Non-Guarantor Subsidiaries Parent Subsidiaries MGP Other Elimination Consolidated (In thousands) Revenues $ — $ 1,937,394 $ 220,390 $ 921,382 $ (220,471 ) $ 2,858,695 Equity in subsidiaries' earnings 309,334 22,519 — — (331,853 ) — Expenses Casino and hotel operations 2,562 1,094,872 — 572,061 (81 ) 1,669,414 General and administrative 2,408 315,659 27,219 120,386 (27,219 ) 438,453 Corporate expense 39,707 53,652 10,746 5,192 (5,859 ) 103,438 Preopening and start-up expenses — 1,937 — 17,140 — 19,077 Property transactions, net — 17,083 14,426 (113 ) (14,426 ) 16,970 Depreciation and amortization — 158,753 67,474 137,440 (67,459 ) 296,208 44,677 1,641,956 119,865 852,106 (115,044 ) 2,543,560 Income (loss) from unconsolidated affiliates — 48,294 — (354 ) — 47,940 Operating income 264,657 366,251 100,525 68,922 (437,280 ) 363,075 Interest expense, net of amounts capitalized (115,531 ) (156 ) (49,276 ) (16,530 ) — (181,493 ) Other, net 15,356 (118,368 ) (1,927 ) (49,288 ) 136,778 (17,449 ) Income before income taxes 164,482 247,727 49,322 3,104 (300,502 ) 164,133 Benefit (provision) for income taxes (40,705 ) — (1,263 ) 18,258 — (23,710 ) Net income 123,777 247,727 48,059 21,362 (300,502 ) 140,423 Less: Net income attributable to noncontrolling interests — — (13,146 ) (3,500 ) — (16,646 ) Net income attributable to MGM Resorts International $ 123,777 $ 247,727 $ 34,913 $ 17,862 $ (300,502 ) $ 123,777 Net income $ 123,777 $ 247,727 $ 48,059 $ 21,362 $ (300,502 ) $ 140,423 Other comprehensive income, net of tax: Foreign currency translation adjustment 583 583 — 1,400 (1,166 ) 1,400 Unrealized gain on cash flow hedges 3,660 — 6,281 — (4,606 ) 5,335 Other comprehensive income 4,243 583 6,281 1,400 (5,772 ) 6,735 Comprehensive income 128,020 248,310 54,340 22,762 (306,274 ) 147,158 Less: Comprehensive income attributable to noncontrolling interests — — (14,821 ) (4,317 ) — (19,138 ) Comprehensive income attributable to MGM Resorts International $ 128,020 $ 248,310 $ 39,519 $ 18,445 $ (306,274 ) $ 128,020 CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) INFORMATION Three Months Ended June 30, 2017 Guarantor Non-Guarantor Subsidiaries Parent Subsidiaries MGP Other Elimination Consolidated (In thousands) Revenues $ — $ 1,907,756 $ 184,456 $ 745,312 $ (185,391 ) $ 2,652,133 Equity in subsidiaries' earnings 424,981 36,260 — — (461,241 ) — Expenses Casino and hotel operations 2,616 1,063,046 — 455,889 (935 ) 1,520,616 General and administrative 2,131 265,778 20,642 86,440 (20,642 ) 354,349 Corporate expense 31,488 45,347 2,833 (48 ) (172 ) 79,448 Preopening and start-up expenses — 2,131 — 18,962 — 21,093 Property transactions, net — 13,060 10,587 3,097 (13,501 ) 13,243 NV Energy exit expense — (40,629 ) — — — (40,629 ) Depreciation and amortization — 160,402 60,227 84,352 (60,227 ) 244,754 36,235 1,509,135 94,289 648,692 (95,477 ) 2,192,874 Income (loss) from unconsolidated affiliates — 40,652 — (13 ) — 40,639 Operating income 388,746 475,533 90,167 96,607 (551,155 ) 499,898 Interest expense, net of amounts capitalized (122,942 ) (176 ) (44,818 ) (6,122 ) — (174,058 ) Other, net 13,389 (119,693 ) (297 ) (27,857 ) 123,151 (11,307 ) Income before income taxes 279,193 355,664 45,052 62,628 (428,004 ) 314,533 Provision for income taxes (69,329 ) — (1,177 ) (3,154 ) — (73,660 ) Net income 209,864 355,664 43,875 59,474 (428,004 ) 240,873 Less: Net income attributable to noncontrolling interests — — (10,680 ) (20,329 ) — (31,009 ) Net income attributable to MGM Resorts International $ 209,864 $ 355,664 $ 33,195 $ 39,145 $ (428,004 ) $ 209,864 Net income $ 209,864 $ 355,664 $ 43,875 $ 59,474 $ (428,004 ) $ 240,873 Other comprehensive loss, net of tax: Foreign currency translation adjustment (14,018 ) (14,018 ) — (25,376 ) 28,036 (25,376 ) Unrealized loss on cash flow hedges (2,347 ) — (4,112 ) — 3,136 (3,323 ) Other comprehensive loss (16,365 ) (14,018 ) (4,112 ) (25,376 ) 31,172 (28,699 ) Comprehensive income 193,499 341,646 39,763 34,098 (396,832 ) 212,174 Less: Comprehensive income attributable to noncontrolling interests — — (9,705 ) (8,970 ) — (18,675 ) Comprehensive income attributable to MGM Resorts International $ 193,499 $ 341,646 $ 30,058 $ 25,128 $ (396,832 ) $ 193,499
Schedule of Condensed Consolidating Statement of Cash Flows Information	CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS INFORMATION Six Months Ended June 30, 2018 Guarantor Non-Guarantor Subsidiaries Parent Subsidiaries MGP Other Elimination Consolidated (In thousands) Cash flows from operating activities Net cash provided by (used in) operating activities $ (224,359 ) $ 624,484 $ 284,333 $ 408,693 $ — $ 1,093,151 Cash flows from investing activities Capital expenditures, net of construction payable — (367,713 ) (190 ) (493,858 ) — (861,761 ) Dispositions of property and equipment — 435 — 5 — 440 Investments in unconsolidated affiliates — (2,503 ) — — — (2,503 ) Distributions from unconsolidated affiliates in excess of cumulative earnings — 200,000 — — — 200,000 Intercompany accounts — (515,927 ) — — 515,927 — Other — (9,916 ) — (5,693 ) — (15,609 ) Net cash used in investing activities — (695,624 ) (190 ) (499,546 ) 515,927 (679,433 ) Cash flows from financing activities Net borrowings (repayments) under bank credit facilities – maturities of 90 days or less (141,250 ) — (13,000 ) (206,624 ) — (360,874 ) Issuance of long-term debt 1,000,000 — — — — 1,000,000 Debt issuance costs (14,414 ) — (17,490 ) (32,873 ) — (64,777 ) Dividends paid to common shareholders (133,334 ) — — — — (133,334 ) Distributions to noncontrolling interest owners — — (59,553 ) (41,854 ) — (101,407 ) MGP dividends paid to consolidated subsidiaries — — (163,913 ) — 163,913 — Purchases of common stock (957,264 ) — — — — (957,264 ) Retirement of debentures — (2,265 ) — — — (2,265 ) Intercompany accounts 505,289 48,052 — 126,499 (679,840 ) — Other (9,393 ) (4,200 ) — (4,637 ) — (18,230 ) Net cash provided by (used in) financing activities 249,634 41,587 (253,956 ) (159,489 ) (515,927 ) (638,151 ) Effect of exchange rate on cash — — — (2,690 ) — (2,690 ) Cash and cash equivalents Net increase (decrease) for the period 25,275 (29,553 ) 30,187 (253,032 ) — (227,123 ) Balance, beginning of period 26,870 311,043 259,722 902,360 — 1,499,995 Balance, end of period $ 52,145 $ 281,490 $ 289,909 $ 649,328 $ — $ 1,272,872 CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS INFORMATION Six Months Ended June 30, 2017 Guarantor Non-Guarantor Subsidiaries Parent Subsidiaries MGP Other Elimination Consolidated (In thousands) Cash flows from operating activities Net cash provided by (used in) operating activities $ (384,587 ) $ 656,632 $ 230,718 $ 436,363 $ — $ 939,126 Cash flows from investing activities Capital expenditures, net of construction payable — (144,433 ) — (728,177 ) — (872,610 ) Dispositions of property and equipment — 174 — 119 — 293 Investments in unconsolidated affiliates — (4,773 ) — — — (4,773 ) Distributions from unconsolidated affiliates in excess of cumulative earnings — 300,000 — — — 300,000 Intercompany accounts — (886,611 ) — — 886,611 — Other — (6,560 ) — (9,128 ) — (15,688 ) Net cash used in investing activities — (742,203 ) — (737,186 ) 886,611 (592,778 ) Cash flows from financing activities Net borrowings (repayments) under bank credit facilities - maturities of 90 days or less (6,250 ) — (25,125 ) 236,227 — 204,852 Debt issuance costs — — (1,024 ) (4,379 ) — (5,403 ) Dividends paid to common shareholders (126,429 ) — — — — (126,429 ) Distributions to noncontrolling interest owners — — (44,564 ) (45,308 ) — (89,872 ) MGP dividends paid to consolidated subsidiaries — — (143,655 ) — 143,655 — Intercompany accounts 924,157 58,984 — 47,125 (1,030,266 ) — Other (11,702 ) — — (4,391 ) — (16,093 ) Net cash provided by (used in) financing activities 779,776 58,984 (214,368 ) 229,274 (886,611 ) (32,945 ) Effect of exchange rate on cash — — — (2,922 ) — (2,922 ) Cash and cash equivalents Net increase (decrease) for the period 395,189 (26,587 ) 16,350 (74,471 ) — 310,481 Balance, beginning of period 99,995 307,713 360,492 678,381 — 1,446,581 Balance, end of period $ 495,184 $ 281,126 $ 376,842 $ 603,910 $ — $ 1,757,062

Organization - Additional Infor

Organization - Additional Information (Detail) $ in Millions	Jul. 06, 2018USD ($)	May 28, 2018USD ($)	Apr. 04, 2018USD ($)	Dec. 31, 2024USD ($)	Mar. 31, 2017	Jun. 30, 2018USD ($)aft²SlotgamesRoomParking_garage_spaceSegment	Dec. 31, 2017	Oct. 31, 2015Seat
Organization Disclosure [Line Items]
Partnership interest						73.30%
Percentage of minority interest						26.70%
Number of reportable segments | Segment						2
Empire City [Member]
Organization Disclosure [Line Items]
Total purchase price		$ 850
Debt included in total business combination consideration		245
Consideration in form of common stock		260
Empire City [Member] | Developed Real Property [Member]
Organization Disclosure [Line Items]
Total purchase price		625
Debt included in total business combination consideration		$ 245
Empire City [Member] | Forecast [Member]
Organization Disclosure [Line Items]
Additional contingent consideration payable				$ 50
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%
Hard Rock Rocksino Northfield Park [Member]
Organization Disclosure [Line Items]
Date of acquisition agreement						Apr. 4, 2018
Total purchase price			$ 1,060
Subsequent Event [Member] | Hard Rock Rocksino Northfield Park [Member] | Delayed Draw Term Loan A [Member]
Organization Disclosure [Line Items]
Liabilities incurred for acquisition	$ 200
Subsequent Event [Member] | Hard Rock Rocksino Northfield Park [Member] | Revolving Credit Facility [Member]
Organization Disclosure [Line Items]
Liabilities incurred for acquisition	$ 655
Class A shares [Member]
Organization Disclosure [Line Items]
Common stock voting rights						one vote per share
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 Growth Properties LLC [Member]
Organization Disclosure [Line Items]
Minimum ownership percentage required for majority voting interest						30.00%
Percentage of minority interest						26.70%
MGM China [Member]
Organization Disclosure [Line Items]
Percentage ownership interest					56.00%
MGM Springfield [Member] | Massachusetts [Member]
Organization Disclosure [Line Items]
Area of development site (in acres) | a						14
Expected development and construction cost, excluding capitalized and land related costs						$ 960
Number of slots | Slot						2,500
Number of gaming tables | games						120
Number of hotel rooms | Room						250
Area of retail and restaurant space | ft²						110,000
Area of meeting and event space | ft²						46,000
Parking garage space | Parking_garage_space						3,500

Basis of Presentation and Sig27

Basis of Presentation and Significant Accounting Policies - Additional Information (Detail) - USD ($) $ in Thousands	Jan. 01, 2015	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Percentage of minority interest		26.70%		26.70%
Total assets		$ 28,977,160		$ 28,977,160		$ 29,160,042
Total liabilities		18,050,251		18,050,251		17,469,140
Accrual for property and equipment		60,000		60,000		28,000
Construction retention accrued		1,000		1,000		34,000
Commissions, complimentaries and other incentives		520,000	$ 473,000	1,100,000	$ 958,000
Accounting Standards Update 2014-09 | Effect Before and After Topic 606 [Member]
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Decrease to beginning retained earnings, net of tax	$ (29,000)
Tax effect of change in retained earnings	$ 15,000
Food and Beverage Revenue [Member]
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Lease revenue		12,000	14,000	25,000	26,000
Entertainment Retail and Other Revenue [Member]
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Lease revenue		$ 22,000	$ 19,000	$ 43,000	$ 39,000
MGM Growth Properties LLC [Member]
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Percentage of minority interest		26.70%		26.70%
Total assets		$ 10,300,000		$ 10,300,000		10,400,000
Total liabilities		$ 4,300,000		$ 4,300,000		$ 4,300,000

Basis of Presentation and Sig28

Basis of Presentation and Significant Accounting Policies - Schedule of Contract and Contract - related Liabilities (Detail) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Outstanding Chip Liability [Member]
Contract And Contract Related Liabilities [Line Items]
Balance at January 1	$ 597,753	$ 227,538
Balance at June 30	759,049	319,878
Increase / (decrease)	161,296	92,340
Loyalty Program [Member]
Contract And Contract Related Liabilities [Line Items]
Balance at January 1	91,119	88,379
Balance at June 30	98,308	88,195
Increase / (decrease)	7,189	(184)
Customer Advances and Other [Member]
Contract And Contract Related Liabilities [Line Items]
Balance at January 1	539,626	437,287
Balance at June 30	510,750	425,197
Increase / (decrease)	$ (28,876)	$ (12,090)

Basis of Presentation and Sig29

Basis of Presentation and Significant Accounting Policies -Schedule of Increase / (Decrease) By Adopting Accounting Standards in Income Statement Line items (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended					6 Months Ended		12 Months Ended
	Jun. 30, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Revenues
Total revenues, gross	$ 2,858,695			$ 2,652,133		$ 5,680,932	$ 5,369,699
Expenses
General and administrative	(438,453)			(354,349)		(856,343)	(743,137)
Corporate expense	(103,438)			(79,448)		(202,947)	(152,580)
Total expenses	2,543,560			2,192,874		5,037,806	4,453,695
Income from unconsolidated affiliates	47,940			40,639		79,706	80,405
Operating income (loss)	363,075			499,898		722,832	996,409
Income (loss) before income taxes	164,133			314,533		345,055	629,247
Benefit (provision) for income taxes	(23,710)			(73,660)		61,669	(135,800)
Net income	140,423			240,873		406,724	493,447
Net income (loss) attributable to MGM Resorts International	$ 123,777			$ 209,864		$ 347,221	$ 416,276
Net income per share of common stock attributable to MGM Resorts International
Basic	$ 0.21			$ 0.36		$ 0.60	$ 0.72
Diluted	$ 0.21			$ 0.36		$ 0.60	$ 0.72
Casino [Member]
Revenues
Total revenues, gross	$ 1,332,214			$ 1,172,758		$ 2,726,530	$ 2,444,232
Expenses
Total expenses, gross	741,531			627,361		1,504,180	1,294,296
Rooms [Member]
Revenues
Total revenues, gross	563,871			541,755		1,103,351	1,100,567
Expenses
Total expenses, gross	202,968			187,116		392,026	375,785
Food and Beverage [Member]
Revenues
Total revenues, gross	494,808			485,098		950,219	954,434
Expenses
Total expenses, gross	376,985			363,011		730,374	716,173
Entertainment, Retail and Other [Member]
Revenues
Total revenues, gross	363,242			353,230		692,992	670,959
Expenses
Total expenses, gross	$ 243,370			243,836		$ 470,204	$ 467,225
Accounting Standards Update 2014-09 | Effect Before and After Topic 606 [Member]
Revenues
Total revenues, gross		$ (228,940)	$ (233,026)	(217,796)	$ (213,672)			$ (893,434)	$ (770,425)	$ (762,251)
Promotional allowances		229,297	236,460	228,193	223,059			917,009	793,571	751,773
Total revenues, net		357	3,434	10,397	9,387			23,575	23,146	(10,478)
Expenses
General and administrative		(68)	(111)	(114)	(47)			(340)	(83)	9
Corporate expense		(2)	0	40	(41)			(3)	(69)	(71)
Total expenses		372	4,680	11,601	10,120			26,773	25,405	(13,401)
Income from unconsolidated affiliates		25	89	56	63			233	671	471
Operating income (loss)		10	(1,157)	(1,148)	(670)			(2,965)	(1,588)	3,394
Income (loss) before income taxes		10	(1,157)	(1,148)	(670)			(2,965)	(1,588)	3,394
Benefit (provision) for income taxes		(6,310)	405	401	235			(5,269)	556	(1,189)
Net income		(6,300)	(752)	(747)	(435)			(8,234)	(1,032)	2,205
Net income (loss) attributable to MGM Resorts International		$ (6,300)	$ (752)	$ (747)	$ (435)			$ (8,234)	$ (1,032)	$ 2,205
Net income per share of common stock attributable to MGM Resorts International
Basic		$ (0.01)	$ 0	$ (0.01)	$ 0			$ (0.01)	$ 0	$ 0
Diluted		$ (0.01)	$ 0	$ 0	$ 0			$ (0.01)	$ 0	$ 0
Accounting Standards Update 2014-09 | Effect Before and After Topic 606 [Member] | Casino [Member]
Revenues
Total revenues, gross		$ (241,045)	$ (260,644)	$ (232,305)	$ (233,915)			$ (967,909)	$ (828,364)	$ (782,222)
Expenses
Total expenses, gross		(147,081)	(147,144)	(135,898)	(137,660)			(567,783)	(504,561)	(519,569)
Accounting Standards Update 2014-09 | Effect Before and After Topic 606 [Member] | Rooms [Member]
Revenues
Total revenues, gross		(2,987)	8,518	(715)	(3,455)			1,361	(20,814)	(42,152)
Expenses
Total expenses, gross		37,260	35,370	34,381	33,833			140,844	121,551	113,560
Accounting Standards Update 2014-09 | Effect Before and After Topic 606 [Member] | Food and Beverage [Member]
Revenues
Total revenues, gross		16,296	21,967	18,552	24,867			81,682	87,895	72,990
Expenses
Total expenses, gross		100,043	104,786	101,516	103,317			409,662	367,166	353,364
Accounting Standards Update 2014-09 | Effect Before and After Topic 606 [Member] | Entertainment, Retail and Other [Member]
Revenues
Total revenues, gross		(1,204)	(2,867)	(3,328)	(1,169)			(8,568)	(9,142)	(10,867)
Expenses
Total expenses, gross		$ 10,220	$ 11,779	$ 11,676	$ 10,718			$ 44,393	$ 41,401	$ 39,306

Investments in and Advances t30

Investments in and Advances to Unconsolidated Affiliates - Schedule of Investments in and Advances to Unconsolidated Affiliates (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Schedule Of Equity Method Investments [Line Items]
Investments in and advances to unconsolidated affiliates	$ 882,940	$ 1,033,297
CityCenter Holdings LLC As Investee [Member]
Schedule Of Equity Method Investments [Line Items]
Investments in and advances to unconsolidated affiliates	663,785	808,220
Elgin Riverboat Resort-Riverboat Casino [Member]
Schedule Of Equity Method Investments [Line Items]
Investments in and advances to unconsolidated affiliates	121,978	124,342
Las Vegas Arena Company LLC As Investee [Member]
Schedule Of Equity Method Investments [Line Items]
Investments in and advances to unconsolidated affiliates	76,356	76,619
Other [Member]
Schedule Of Equity Method Investments [Line Items]
Investments in and advances to unconsolidated affiliates	$ 20,821	$ 24,116

Investments in and Advances t31

Investments in and Advances to Unconsolidated Affiliates - Schedule of Investments in and Advances to Unconsolidated Affiliates (Parenthetical) (Detail)	Jun. 30, 2018	Apr. 30, 2018	Dec. 31, 2017
CityCenter Holdings LLC As Investee [Member]
Schedule Of Equity Method Investments [Line Items]
Percentage ownership interest	50.00%		50.00%
Elgin Riverboat Resort-Riverboat Casino [Member]
Schedule Of Equity Method Investments [Line Items]
Percentage ownership interest	50.00%	50.00%	50.00%
Las Vegas Arena Company LLC As Investee [Member]
Schedule Of Equity Method Investments [Line Items]
Percentage ownership interest	42.50%		42.50%

Investments in and Advances t32

Investments in and Advances to Unconsolidated Affiliates - Schedule of Share of Net Income From Unconsolidated Affiliates (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Equity Method Investments And Joint Ventures [Abstract]
Income from unconsolidated affiliates	$ 47,940	$ 40,639	$ 79,706	$ 80,405
Preopening and start-up expenses	0	0	(3,321)	0
Non-operating items from unconsolidated affiliates	(11,068)	(10,556)	(20,078)	(17,477)
Net income from unconsolidated affiliates	$ 36,872	$ 30,083	$ 56,307	$ 62,928

Investments in and Advances t33

Investments in and Advances to Unconsolidated Affiliates - Additional Information (Detail) - USD ($)	1 Months Ended				6 Months Ended
	May 31, 2018	Apr. 30, 2018	Mar. 31, 2018	Apr. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Schedule Of Equity Method Investments [Line Items]
Dividend paid					$ 133,334,000
Distributions from unconsolidated affiliates	50.00%			50.00%
Distributions from unconsolidated affiliates	$ 200,000,000			$ 300,000,000	$ 200,000,000	$ 300,000,000
City Center Holdings L L C [Member]
Schedule Of Equity Method Investments [Line Items]
Dividend paid	400,000,000			$ 600,000,000
City Center Holdings L L C [Member] | New Senior Credit Facility [Member]
Schedule Of Equity Method Investments [Line Items]
Credit facility amount	$ 200,000,000
City Center Holdings L L C [Member] | New Senior Credit Facility [Member] | Term Loan B [Member] | LIBOR [Member]
Schedule Of Equity Method Investments [Line Items]
Interest rate margin (as a percent)	2.25%
Reduction in basis points (as percent)	0.25%
Mandarin Oriental [Member] | City Center Holdings L L C [Member]
Schedule Of Equity Method Investments [Line Items]
Consideration received from sale of discontinued operations			$ 214,000,000
Impairment loss from discontinuing operation			127,000,000
CityCenter Holdings LLC As Investee [Member]
Schedule Of Equity Method Investments [Line Items]
Reversal of basis differences			$ 64,000,000
Percentage of share of impairment charge offset			50.00%
Percentage ownership interest					50.00%		50.00%
Grand Victoria as Investee [Member]
Schedule Of Equity Method Investments [Line Items]
Percentage ownership interest		50.00%			50.00%		50.00%
Realized gain (loss) percentage		50.00%
Recognized gain on sale, unconsolidated affiliates		$ 162,000,000
Grand Victoria [Member]
Schedule Of Equity Method Investments [Line Items]
Consideration received from sale of discontinued operations		$ 328,000,000
Percentage ownership interest					50.00%

Long-Term Debt - Schedule of Lo

Long-Term Debt - Schedule of Long-Term Debt (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Long-term debt, Gross	$ 13,646,171	$ 13,018,276
Less: Premiums, discounts, and unamortized debt issuance costs, net	(132,830)	(109,182)
Long-term debt	13,513,341	12,909,094
Less: Current portion of long-term debt, net	0	(158,042)
Long-term debt, net	13,513,341	12,751,052
Senior Credit Facility [Member]
Debt Instrument [Line Items]
Long-term debt, Gross	231,250	372,500
Operating Partnership Senior Credit Facility [Member]
Debt Instrument [Line Items]
Long-term debt, Gross	2,078,375	2,091,375
MGM China Credit Facility [Member]
Debt Instrument [Line Items]
Long-term debt, Gross	2,085,994	2,301,584
Less: Current portion of long-term debt, net		(158,000)
8.625% senior notes, due 2019 [Member]
Debt Instrument [Line Items]
Senior notes	850,000	850,000
5.25% senior notes, due 2020 [Member]
Debt Instrument [Line Items]
Senior notes	500,000	500,000
6.75% senior notes, due 2020 [Member]
Debt Instrument [Line Items]
Senior notes	1,000,000	1,000,000
6.625% senior notes, due 2021 [Member]
Debt Instrument [Line Items]
Senior notes	1,250,000	1,250,000
7.75% senior notes, due 2022 [Member]
Debt Instrument [Line Items]
Senior notes	1,000,000	1,000,000
6% senior notes, due 2023 [Member]
Debt Instrument [Line Items]
Senior notes	1,250,000	1,250,000
5.625% Operating Partnership senior notes, due 2024 [Member]
Debt Instrument [Line Items]
Senior notes	1,050,000	1,050,000
4.625% senior notes, due 2026 [Member]
Debt Instrument [Line Items]
Senior notes	500,000	500,000
5.75% senior notes, due 2025 [Member]
Debt Instrument [Line Items]
Senior notes	1,000,000	0
4.50% Operating Partnership senior notes, due 2026 [Member]
Debt Instrument [Line Items]
Senior notes	500,000	500,000
4.50% Operating Partnership senior notes, due 2028 [Member]
Debt Instrument [Line Items]
Senior notes	350,000	350,000
7% debentures, due 2036 [Member]
Debt Instrument [Line Items]
Senior notes	552	552
6.7% debentures, due 2096 [Member]
Debt Instrument [Line Items]
Senior notes	$ 0	$ 2,265

Long-Term Debt - Schedule of 35

Long-Term Debt - Schedule of Long-Term Debt (Parenthetical) (Detail) - USD ($) $ in Millions	6 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
8.625% senior notes, due 2019 [Member]
Debt Instrument [Line Items]
Long-term debt, principal amount	$ 850	$ 850
Long-term debt, interest rate (as a percent)	8.625%	8.625%
Long-term debt, maturity year	2,019	2,019
5.25% senior notes, due 2020 [Member]
Debt Instrument [Line Items]
Long-term debt, principal amount	$ 500	$ 500
Long-term debt, interest rate (as a percent)	5.25%	5.25%
Long-term debt, maturity year	2,020	2,020
6.75% senior notes, due 2020 [Member]
Debt Instrument [Line Items]
Long-term debt, principal amount	$ 1,000	$ 1,000
Long-term debt, interest rate (as a percent)	6.75%	6.75%
Long-term debt, maturity year	2,020	2,020
5.75% senior notes, due 2025 [Member]
Debt Instrument [Line Items]
Long-term debt, principal amount	$ 1,000
Long-term debt, interest rate (as a percent)	5.75%
Long-term debt, maturity year	2,025
6.625% senior notes, due 2021 [Member]
Debt Instrument [Line Items]
Long-term debt, principal amount	$ 1,250	$ 1,250
Long-term debt, interest rate (as a percent)	6.625%	6.625%
Long-term debt, maturity year	2,021	2,021
7.75% senior notes, due 2022 [Member]
Debt Instrument [Line Items]
Long-term debt, principal amount	$ 1,000	$ 1,000
Long-term debt, interest rate (as a percent)	7.75%	7.75%
Long-term debt, maturity year	2,022	2,022
4.50% Operating Partnership senior notes, due 2028 [Member]
Debt Instrument [Line Items]
Long-term debt, principal amount	$ 350	$ 350
Long-term debt, interest rate (as a percent)	4.50%	4.50%
Long-term debt, maturity year	2,028	2,028
5.625% Operating Partnership senior notes, due 2024 [Member]
Debt Instrument [Line Items]
Long-term debt, principal amount	$ 1,050	$ 1,050
Long-term debt, interest rate (as a percent)	5.625%	5.625%
Long-term debt, maturity year	2,024	2,024
6% senior notes, due 2023 [Member]
Debt Instrument [Line Items]
Long-term debt, principal amount	$ 1,250	$ 1,250
Long-term debt, interest rate (as a percent)	6.00%	6.00%
Long-term debt, maturity year	2,023	2,023
4.50% Operating Partnership senior notes, due 2026 [Member]
Debt Instrument [Line Items]
Long-term debt, principal amount	$ 500	$ 500
Long-term debt, interest rate (as a percent)	4.50%	4.50%
Long-term debt, maturity year	2,026	2,026
4.625% senior notes, due 2026 [Member]
Debt Instrument [Line Items]
Long-term debt, principal amount	$ 500	$ 500
Long-term debt, interest rate (as a percent)	4.625%	4.625%
Long-term debt, maturity year	2,026	2,026
7% debentures, due 2036 [Member]
Debt Instrument [Line Items]
Long-term debt, principal amount	$ 0.6	$ 0.6
Long-term debt, interest rate (as a percent)	7.00%	7.00%
Long-term debt, maturity year	2,036	2,036
6.7% debentures, due 2096 [Member]
Debt Instrument [Line Items]
Long-term debt, principal amount		$ 2.3
Long-term debt, interest rate (as a percent)		6.70%
Long-term debt, maturity year		2,096

Long-Term Debt - Additional Inf

Long-Term Debt - Additional Information (Detail) - USD ($)	Jun. 14, 2018	Mar. 23, 2018	Jun. 30, 2018	Jun. 30, 2018	Jun. 30, 2018	Mar. 31, 2022	Jun. 15, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Current portion of long-term debt, net of debt issuance costs			$ 0	$ 0	$ 0			$ 158,042,000
Credit facility amount			13,646,171,000	13,646,171,000	13,646,171,000			13,018,276,000
Long-term debt, fair value			13,800,000,000	13,800,000,000	$ 13,800,000,000			13,600,000,000
Hong Kong Interbank Offered Rate HIBOR [Member] | MGM China Credit Facility [Member]
Debt Instrument [Line Items]
Variable interest rate base					0
Term Loan A [Member] | Operating Partnership Senior Credit Facility [Member]
Debt Instrument [Line Items]
Credit facility amount			$ 470,000,000	$ 470,000,000	$ 470,000,000
Debt instrument, interest rate			4.34%	4.34%	4.34%
Term loan repayment percentage of initial aggregate principal amount	0.625%
Repayments of term loan				$ 0	$ 4,000,000
Term Loan A [Member] | Minimum [Member] | LIBOR [Member] | Operating Partnership Senior Credit Facility [Member]
Debt Instrument [Line Items]
Interest rate margin (as a percent)	1.75%
Term Loan A [Member] | Maximum [Member] | LIBOR [Member] | Operating Partnership Senior Credit Facility [Member]
Debt Instrument [Line Items]
Interest rate margin (as a percent)	2.25%
Term Loan B [Member] | Operating Partnership Senior Credit Facility [Member]
Debt Instrument [Line Items]
Credit facility amount			$ 1,800,000,000	$ 1,800,000,000	$ 1,800,000,000
Debt instrument, interest rate			4.09%	4.09%	4.09%
Interest rate margin (as a percent)		2.00%
Credit facility, maturity date		2025-03
Long-term debt, maturity year	2,023
Repayments of term loan				$ 5,000,000	$ 9,000,000
Delayed Draw Term Loan A [Member] | Operating Partnership Senior Credit Facility [Member]
Debt Instrument [Line Items]
Credit facility amount	$ 200,000,000
Line of credit facility drawn			$ 0	0	0
Long-term debt, maturity year	2,023
Term Loan B [Member] | Interest Rate Swap [Member] | Cash Flow Hedges [Member]
Debt Instrument [Line Items]
Notional amount			$ 1,200,000,000	$ 1,200,000,000	$ 1,200,000,000
Fixed interest rate			1.844%	1.844%	1.844%
Fair values of interest rate swaps			$ 34,000,000	$ 34,000,000	$ 34,000,000			11,000,000
Term Loan B [Member] | Minimum [Member] | LIBOR [Member] | Interest Rate Swap [Member] | Cash Flow Hedges [Member]
Debt Instrument [Line Items]
Derivative basis spread on variable rate			0.00%	0.00%	0.00%
Amended and Restated Credit Agreement [Member] | MGM China Credit Facility [Member]
Debt Instrument [Line Items]
Line of credit facility, expiration date					Jun. 30, 2022
Amended and Restated Credit Agreement [Member] | MGM China Credit Facility [Member] | Debt Covenant Terms Through June Thirty Two Thousand and Eighteen [Member]
Debt Instrument [Line Items]
Leverage ratio					600.00%
Amended and Restated Credit Agreement [Member] | MGM China Credit Facility [Member] | Debt Covenant Terms September Thirty Two Thousand and Eighteen [Member]
Debt Instrument [Line Items]
Leverage ratio					550.00%
Amended and Restated Credit Agreement [Member] | MGM China Credit Facility [Member] | Debt Covenant Terms December Thirty One Two Thousand and Eighteen [Member]
Debt Instrument [Line Items]
Leverage ratio					500.00%
Amended and Restated Credit Agreement [Member] | MGM China Credit Facility [Member] | Debt Covenant Terms March Thirty One Thousand and Nineteen and Thereafter [Member]
Debt Instrument [Line Items]
Leverage ratio					450.00%
Senior Notes 5.750%, Due in 2025 [Member]
Debt Instrument [Line Items]
Long-term debt, principal amount			$ 1,000,000,000	$ 1,000,000,000	$ 1,000,000,000
Long-term debt, interest rate (as a percent)			5.75%	5.75%	5.75%
Net proceeds from senior notes			$ 986,000,000
Senior Credit Facility [Member] | Term Loan A [Member]
Debt Instrument [Line Items]
Credit facility amount			$ 231,000,000	$ 231,000,000	$ 231,000,000
Repayments of term loan				$ 3,000,000	$ 6,000
Debt instrument, interest rate			4.34%	4.34%	4.34%
MGM China Credit Facility [Member]
Debt Instrument [Line Items]
Current portion of long-term debt, net of debt issuance costs								158,000,000
Credit facility amount			$ 2,085,994,000	$ 2,085,994,000	$ 2,085,994,000			$ 2,301,584,000
Revolving Credit Facility [Member] | Operating Partnership Senior Credit Facility [Member]
Debt Instrument [Line Items]
Line of credit facility			1,350,000,000	1,350,000,000	1,350,000,000
Line of credit facility drawn			0	0	0
Increase (decrease) to revolving credit facility trough amendment	$ 750,000,000
Long-term debt, maturity year	2,023
Revolving Credit Facility [Member] | MGM China Credit Facility [Member]
Debt Instrument [Line Items]
Line of credit facility			1,000,000,000	1,000,000,000	$ 1,000,000,000
Revolving Credit Facility [Member] | Maximum [Member] | Hong Kong Interbank Offered Rate HIBOR [Member] | MGM China Credit Facility [Member]
Debt Instrument [Line Items]
Interest rate margin (as a percent)					2.50%
Revolving Credit Facility [Member] | Amended and Restated Credit Agreement [Member] | MGM China Credit Facility [Member]
Debt Instrument [Line Items]
Line of credit facility							$ 1,000,000,000
Line of credit facility drawn			$ 98,000	$ 98,000	$ 98,000
Debt instrument, interest rate			4.53%	4.53%	4.53%
Increase (decrease) to revolving credit facility trough amendment					$ (450,000,000)
Amortization payments of aggregate principal balance (as percent)					5.00%
Revolving Credit Facility [Member] | Amended and Restated Credit Agreement [Member] | MGM China Credit Facility [Member] | Forecast [Member]
Debt Instrument [Line Items]
Line of credit facility						$ 0
Line of credit facility, remaining borrowing capacity						0
Revolving Credit Facility [Member] | Senior Credit Facility [Member]
Debt Instrument [Line Items]
Line of credit facility			$ 1,250,000,000	$ 1,250,000,000	$ 1,250,000,000
Line of credit facility drawn			0	0	0
Term loans [Member] | MGM China Credit Facility [Member]
Debt Instrument [Line Items]
Line of credit facility			$ 2,000,000,000	$ 2,000,000,000	$ 2,000,000,000
Term loans [Member] | Minimum [Member] | Hong Kong Interbank Offered Rate HIBOR [Member] | MGM China Credit Facility [Member]
Debt Instrument [Line Items]
Interest rate margin (as a percent)					1.375%
Term loans [Member] | Amended and Restated Credit Agreement [Member] | MGM China Credit Facility [Member]
Debt Instrument [Line Items]
Line of credit facility							$ 2,000,000,000
Increase (decrease) to revolving credit facility trough amendment					$ 450,000,000
Term loans [Member] | Amended and Restated Credit Agreement [Member] | MGM China Credit Facility [Member] | Forecast [Member]
Debt Instrument [Line Items]
Line of credit facility						0
Line of credit facility, remaining borrowing capacity						$ 0

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($)	3 Months Ended		6 Months Ended	12 Months Ended
	Mar. 31, 2020	Jun. 30, 2018	Jun. 30, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Line Items]
Effective income tax rate		14.40%	(17.90%)
Tax cuts and jobs act of 2017 change in tax rate income tax expense benefit			$ 72,000,000
Tax credit carry forward period			10 years
Tax cuts and jobs act of 2017, measurement period adjustment, income tax expense (benefit)		$ 0
Deferred Taxes for annual fee		$ 41,000,000	$ 41,000,000
Macau [Member] | MGM Grand Paradise SA [Member]
Income Tax Disclosure [Line Items]
Macau's complementary tax rate on distributions of gaming profits (as a percent)			12.00%
MACAU | MGM Grand Paradise SA [Member]
Income Tax Disclosure [Line Items]
Annual payments required under the extended annual fee arrangement			$ 0			$ 1,000,000
Payments required under the extended annual fee arrangement			$ 0
MACAU | Forecast [Member] | MGM Grand Paradise SA [Member]
Income Tax Disclosure [Line Items]
Annual payments required under the extended annual fee arrangement				$ 1,000,000	$ 1,000,000
Payments required under the extended annual fee arrangement	$ 300,000

Commitments and Contingencies -

Commitments and Contingencies - Additional Information (Detail)	Jun. 30, 2018USD ($)
Senior Credit Facility [Member]
Loss Contingencies [Line Items]
Credit facility outstanding	$ 14,000,000
Letters of credit [Member] | Senior Credit Facility [Member]
Loss Contingencies [Line Items]
Credit facility amount	250,000,000
MGP Senior Credit Facility [Member]
Loss Contingencies [Line Items]
Credit facility outstanding	0
MGP Senior Credit Facility [Member] | Letters of credit [Member]
Loss Contingencies [Line Items]
Credit facility amount	75,000,000
MGM China Credit Facility [Member] | Guarantee Type, Other [Member]
Loss Contingencies [Line Items]
Credit facility outstanding	38,000,000
MGM China Credit Facility [Member] | Letters of credit [Member] | Standby Letters of Credit [Member]
Loss Contingencies [Line Items]
Credit facility amount	100,000,000
T-Mobile Arena [Member] | Senior credit facility term loan B [Member]
Loss Contingencies [Line Items]
Payment guarantee	$ 50,000,000

Income Per Share of Common St39

Income Per Share of Common Stock - Schedule of Diluted Weighted-Average Number of Common and Common Equivalent Shares Adjustments for Potential Dilution of Share-Based Awards Outstanding (Detail) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Numerator:
Net income (loss) attributable to MGM Resorts International	$ 123,777	$ 209,864	$ 347,221	$ 416,276
Adjustment related to redeemable noncontrolling interests	(5,986)	(28)	(10,584)	(55)
Net income available to common stockholders - basic	117,791	209,836	336,637	416,221
Potentially dilutive effect due to MGP and MGM China stock compensation plans	(26)	(62)	(158)	(129)
Net income attributable to common stockholders - diluted	$ 117,765	$ 209,774	$ 336,479	$ 416,092
Denominator:
Weighted-average common shares outstanding - basic	548,433	574,931	556,586	574,668
Potential dilution from share-based awards	5,906	7,125	6,522	6,444
Weighted-average common and common equivalent shares - diluted	554,339	582,056	563,108	581,112
Antidilutive share-based awards excluded from the calculation of diluted earnings per share	2,441	2,078	1,305	2,641

Stockholders' Equity - Addition

Stockholders' Equity - Additional Information (Detail) - USD ($) $ / shares in Units, shares in Millions	1 Months Ended					6 Months Ended
	Jun. 30, 2018	May 31, 2018	Mar. 31, 2018	Jun. 30, 2017	Mar. 31, 2017	Jun. 30, 2018	Aug. 02, 2018	Sep. 30, 2017
Stockholders Equity Note [Line Items]
Dividend paid date						Sep. 14, 2018
Dividend record date						Sep. 10, 2018
Dividends paid	$ 65,000,000		$ 68,000,000	$ 63,000,000	$ 63,000,000
Dividends paid per share	$ 0.12		$ 0.12	$ 0.11	$ 0.11
Repurchase of common stock						$ 957,264,000
Subsequent Event [Member]
Stockholders Equity Note [Line Items]
Dividends declared per share							$ 0.12
Two Billion Stock Repurchase Program [Member]
Stockholders Equity Note [Line Items]
Authorized amount of stock repurchase		$ 2,000,000,000
Repurchase of common stock, remaining amount	$ 1,700,000,000					$ 1,700,000,000
Two Billion Stock Repurchase Program [Member] | Common Stock [Member]
Stockholders Equity Note [Line Items]
Common stock repurchases, Shares	9
Stock repurchased, average price per share	$ 31.21
Repurchase of common stock	$ 285,000,000
One Billion Stock Repurchase Program [Member]
Stockholders Equity Note [Line Items]
Authorized amount of stock repurchase								$ 1,000,000,000
One Billion Stock Repurchase Program [Member] | Common Stock [Member]
Stockholders Equity Note [Line Items]
Common stock repurchases, Shares		10	10
Stock repurchased, average price per share		$ 31.38	$ 36.24
Repurchase of common stock		$ 310,000,000	$ 362,000,000

Stockholders' Equity - Changes

Stockholders' Equity - Changes in Stockholders' Equity (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Class Of Stock [Line Items]
Balances, January 1, 2018			$ 11,611,124
Balances, January 1, 2018			7,577,061
Balances, January 1, 2018			4,034,063
Net income (loss) attributable to MGM Resorts International	$ 123,777	$ 209,864	347,221	$ 416,276
Net income			402,305
Foreign currency translation adjustment	1,400	(25,376)	(22,752)	(38,309)
Other comprehensive income - cash flow hedges	5,335	$ (3,323)	19,191	$ (3,957)
Stock-based compensation			33,924
Issuance of common stock pursuant to stock-based compensation awards			(9,390)
Issuance of performance-based share units			3,716
Distributions to noncontrolling interest owners			(63,855)
Dividend paid to common shareholders			(133,334)
Repurchases of common stock			(957,264)
Adjustment of redeemable non-controlling interest to redemption value			(10,584)
Other			(2,648)
Balances, June 30, 2018	3,992,799		3,992,799
Balances, June 30, 2018	6,847,142		6,847,142
Balances, June 30, 2018	10,839,941		10,839,941
MGM Growth Properties LLC [Member] | Class A shares [Member]
Class Of Stock [Line Items]
Distributions to noncontrolling interest owners			(30,492)
MGM Resorts Stockholders' Equity [Member]
Class Of Stock [Line Items]
Balances, January 1, 2018			7,577,061
Net income (loss) attributable to MGM Resorts International			347,221
Foreign currency translation adjustment			(12,785)
Other comprehensive income - cash flow hedges			13,158
Stock-based compensation			31,172
Issuance of common stock pursuant to stock-based compensation awards			(9,390)
Issuance of performance-based share units			3,609
Distributions to noncontrolling interest owners			0
Dividend paid to common shareholders			(133,334)
Repurchases of common stock			(957,264)
Adjustment of redeemable non-controlling interest to redemption value			(10,584)
Other			(1,722)
Balances, June 30, 2018	6,847,142		6,847,142
MGM Resorts Stockholders' Equity [Member] | MGM Growth Properties LLC [Member] | Class A shares [Member]
Class Of Stock [Line Items]
Distributions to noncontrolling interest owners			0
Non-controlling Interests [Member]
Class Of Stock [Line Items]
Balances, January 1, 2018			4,034,063
Net income			55,084
Foreign currency translation adjustment			(9,967)
Other comprehensive income - cash flow hedges			6,033
Stock-based compensation			2,752
Issuance of common stock pursuant to stock-based compensation awards			0
Issuance of performance-based share units			107
Distributions to noncontrolling interest owners			(63,855)
Dividend paid to common shareholders			0
Repurchases of common stock			0
Adjustment of redeemable non-controlling interest to redemption value			0
Other			(926)
Balances, June 30, 2018	$ 3,992,799		3,992,799
Non-controlling Interests [Member] | MGM Growth Properties LLC [Member] | Class A shares [Member]
Class Of Stock [Line Items]
Distributions to noncontrolling interest owners			$ (30,492)

Stockholders' Equity - Schedule

Stockholders' Equity - Schedule of Changes in Accumulated Other Comprehensive Income Attributable to MGM Resorts International by Component (Detail) $ in Thousands	6 Months Ended
	Jun. 30, 2018USD ($)
Accumulated Other Comprehensive Income Loss [Line Items]
Balances, January 1, 2018	$ 11,611,124
Balances, June 30, 2018	10,839,941
Accumulated Foreign Currency Adjustment Including Portion Attributable to Noncontrolling Interest
Accumulated Other Comprehensive Income Loss [Line Items]
Balances, January 1, 2018	(11,450)
Other comprehensive income (loss) before reclassifications	(22,752)
Amounts reclassified from accumulated other comprehensive income to interest expense	0
Other comprehensive income (loss), net of tax	(22,752)
Less: Other comprehensive (income) loss attributable to noncontrolling interest	9,967
Balances, June 30, 2018	(24,235)
Accumulated Net Gain (Loss) from Cash Flow Hedges Including Portion Attributable to Noncontrolling Interest
Accumulated Other Comprehensive Income Loss [Line Items]
Balances, January 1, 2018	6,668
Other comprehensive income (loss) before reclassifications	18,357
Amounts reclassified from accumulated other comprehensive income to interest expense	834
Other comprehensive income (loss), net of tax	19,191
Less: Other comprehensive (income) loss attributable to noncontrolling interest	(6,033)
Balances, June 30, 2018	19,826
Accumulated Other Adjustment Including Portion Attributable To Noncontrolling Interest
Accumulated Other Comprehensive Income Loss [Line Items]
Balances, January 1, 2018	1,172
Other comprehensive income (loss) before reclassifications	0
Amounts reclassified from accumulated other comprehensive income to interest expense	0
Other comprehensive income (loss), net of tax	0
Less: Other comprehensive (income) loss attributable to noncontrolling interest	0
Balances, June 30, 2018	1,172
AOCI Including Portion Attributable to Noncontrolling Interest
Accumulated Other Comprehensive Income Loss [Line Items]
Balances, January 1, 2018	(3,610)
Other comprehensive income (loss) before reclassifications	(4,395)
Amounts reclassified from accumulated other comprehensive income to interest expense	834
Other comprehensive income (loss), net of tax	(3,561)
Less: Other comprehensive (income) loss attributable to noncontrolling interest	3,934
Balances, June 30, 2018	$ (3,237)

Segment Information - Additiona

Segment Information - Additional Information (Detail)	6 Months Ended
	Jun. 30, 2018SegmentRegion
Segment Reporting [Abstract]
Number of geographic regions, where principal operating activities of the entity occur | Region	2
Number of reportable segments | Segment	2

Segment Information - Schedule

Segment Information - Schedule of Segment Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Revenues
Revenues	$ 2,858,695	$ 2,652,133	$ 5,680,932	$ 5,369,699
Other operating expense
NV Energy exit expense	0	40,629	0	40,629
Preopening and start-up expenses	(19,077)	(21,093)	(85,994)	(36,159)
Property transactions, net	(16,970)	(13,243)	(22,868)	(14,939)
Depreciation and amortization	(296,208)	(244,754)	(565,030)	(494,523)
Operating income (loss)	363,075	499,898	722,832	996,409
Non-operating income (expense)
Interest expense, net of amounts capitalized	(181,493)	(174,058)	(349,402)	(348,117)
Non-operating items from unconsolidated affiliates	(11,068)	(10,556)	(20,078)	(17,477)
Other, net	(6,381)	(751)	(8,297)	(1,568)
Total non-operating income (expense)	(198,942)	(185,365)	(377,777)	(367,162)
Income (loss) before income taxes	164,133	314,533	345,055	629,247
Benefit (provision) for income taxes	(23,710)	(73,660)	61,669	(135,800)
Net income	140,423	240,873	406,724	493,447
Less: Net income attributable to noncontrolling interests	(16,646)	(31,009)	(59,503)	(77,171)
Net income attributable to MGM Resorts International	123,777	209,864	347,221	416,276
Reportable segments [Member]
Revenues
Revenues	2,724,353	2,529,299	5,418,886	5,126,680
Adjusted Property EBITDA	745,595	775,805	1,513,713	1,568,199
Reportable segments [Member] | Domestic Resorts [Member]
Revenues
Revenues	2,163,003	2,105,388	4,261,675	4,227,353
Adjusted Property EBITDA	625,720	656,899	1,242,087	1,304,096
Reportable segments [Member] | MGM China [Member]
Revenues
Revenues	561,350	423,911	1,157,211	899,327
Adjusted Property EBITDA	119,875	118,906	271,626	264,103
Corporate and other [Member]
Revenues
Revenues	134,342	122,834	262,046	243,019
Other operating expense
Corporate and other	(50,265)	(37,446)	(116,989)	(66,798)
Casino [Member]
Revenues
Revenues	1,332,214	1,172,758	2,726,530	2,444,232
Casino [Member] | Reportable segments [Member] | Domestic Resorts [Member]
Revenues
Revenues	833,398	774,712	1,674,095	1,596,378
Casino [Member] | Reportable segments [Member] | MGM China [Member]
Revenues
Revenues	496,895	397,200	1,047,490	846,147
Rooms [Member]
Revenues
Revenues	563,871	541,755	1,103,351	1,100,567
Rooms [Member] | Reportable segments [Member] | Domestic Resorts [Member]
Revenues
Revenues	532,869	528,380	1,052,515	1,073,972
Rooms [Member] | Reportable segments [Member] | MGM China [Member]
Revenues
Revenues	31,002	13,376	50,836	26,596
Food and Beverage [Member]
Revenues
Revenues	494,808	485,098	950,219	954,434
Food and Beverage [Member] | Reportable segments [Member] | Domestic Resorts [Member]
Revenues
Revenues	466,663	473,652	901,337	931,579
Food and Beverage [Member] | Reportable segments [Member] | MGM China [Member]
Revenues
Revenues	28,104	11,445	48,841	22,854
Entertainment, Retail and Other [Member]
Revenues
Revenues	363,242	353,230	692,992	670,959
Entertainment, Retail and Other [Member] | Reportable segments [Member] | Domestic Resorts [Member]
Revenues
Revenues	330,073	328,644	633,728	625,424
Entertainment, Retail and Other [Member] | Reportable segments [Member] | MGM China [Member]
Revenues
Revenues	$ 5,349	$ 1,890	$ 10,044	$ 3,730

Related Party Transactions - Ad

Related Party Transactions - Additional Information (Detail) - USD ($) $ in Millions	Apr. 01, 2018	Oct. 05, 2017	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Master Lease [Member]
Related Party Transaction [Line Items]
Annual rent payments under master lease of properties	$ 770	$ 757
MGM Branding and Development [Member] | Ms Ho Pansy Catilina Chiu King [Member]
Related Party Transaction [Line Items]
Distribution made to noncontrolling interests			$ 4	$ 8	$ 13	$ 10

Condensed Consolidating Finan46

Condensed Consolidating Financial Information - Schedule of Condensed Consolidating Balance Sheet Information (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Condensed Balance Sheet Statements Captions [Line Items]
Current assets	$ 2,083,116	$ 2,376,355
Property and equipment, net	19,863,078	19,635,459
Investments in subsidiaries	0	0
Investments in the MGP Operating Partnership	0	0
Investments in and advances to unconsolidated affiliates	882,940	1,033,297
Intercompany accounts	0	0
Other non-current assets	6,148,026	6,114,931
Total assets	28,977,160	29,160,042
Current liabilities	3,064,793	3,138,297
Intercompany accounts	0	0
Deferred income taxes, net	1,226,397	1,295,375
Long-term debt, net	13,513,341	12,751,052
Other long-term obligations	245,720	284,416
Total liabilities	18,050,251	17,469,140
Redeemable noncontrolling interests	86,968	79,778
MGM Resorts International stockholders' equity	6,847,142	7,577,061
Noncontrolling interests	3,992,799	4,034,063
Total stockholders' equity	10,839,941	11,611,124
Total liabilities and stockholders' equity	28,977,160	29,160,042
Reportable Legal Entities [Member] | Parent [Member]
Condensed Balance Sheet Statements Captions [Line Items]
Current assets	81,185	78,909
Property and equipment, net	0	0
Investments in subsidiaries	21,713,553	21,040,147
Investments in the MGP Operating Partnership	0	0
Investments in and advances to unconsolidated affiliates	0	0
Intercompany accounts	0	0
Other non-current assets	58,616	49,142
Total assets	21,853,354	21,168,198
Current liabilities	142,431	153,159
Intercompany accounts	6,351,967	5,783,578
Deferred income taxes, net	940,949	934,966
Long-term debt, net	7,532,585	6,682,574
Other long-term obligations	38,280	36,860
Total liabilities	15,006,212	13,591,137
Redeemable noncontrolling interests	0	0
MGM Resorts International stockholders' equity	6,847,142	7,577,061
Noncontrolling interests	0	0
Total stockholders' equity	6,847,142	7,577,061
Total liabilities and stockholders' equity	21,853,354	21,168,198
Reportable Legal Entities [Member] | Guarantor Subsidiaries [Member]
Condensed Balance Sheet Statements Captions [Line Items]
Current assets	945,675	1,015,802
Property and equipment, net	13,539,895	13,521,221
Investments in subsidiaries	3,403,939	3,304,768
Investments in the MGP Operating Partnership	3,503,564	3,549,063
Investments in and advances to unconsolidated affiliates	852,698	1,002,903
Intercompany accounts	6,514,427	5,998,499
Other non-current assets	974,909	913,602
Total assets	29,735,107	29,305,858
Current liabilities	1,425,041	1,445,031
Intercompany accounts	0	0
Deferred income taxes, net	0	0
Long-term debt, net	570	2,835
Other long-term obligations	7,235,916	7,268,664
Total liabilities	8,661,527	8,716,530
Redeemable noncontrolling interests	0	0
MGM Resorts International stockholders' equity	21,073,580	20,589,328
Noncontrolling interests	0	0
Total stockholders' equity	21,073,580	20,589,328
Total liabilities and stockholders' equity	29,735,107	29,305,858
Reportable Legal Entities [Member] | Non-Guarantor MGP Subsidiaries [Member]
Condensed Balance Sheet Statements Captions [Line Items]
Current assets	294,979	266,627
Property and equipment, net	9,880,658	10,021,938
Investments in subsidiaries	0	0
Investments in the MGP Operating Partnership	0	0
Investments in and advances to unconsolidated affiliates	0	0
Intercompany accounts	0	0
Other non-current assets	94,428	62,555
Total assets	10,270,065	10,351,120
Current liabilities	149,275	144,537
Intercompany accounts	147	962
Deferred income taxes, net	28,544	28,544
Long-term debt, net	3,923,224	3,934,628
Other long-term obligations	194,572	174,710
Total liabilities	4,295,762	4,283,381
Redeemable noncontrolling interests	0	0
MGM Resorts International stockholders' equity	4,374,317	4,443,089
Noncontrolling interests	1,599,986	1,624,650
Total stockholders' equity	5,974,303	6,067,739
Total liabilities and stockholders' equity	10,270,065	10,351,120
Reportable Legal Entities [Member] | Non-Guarantor Other Subsidiaries [Member]
Condensed Balance Sheet Statements Captions [Line Items]
Current assets	765,156	1,022,340
Property and equipment, net	6,334,519	6,125,722
Investments in subsidiaries	0	0
Investments in the MGP Operating Partnership	847,376	862,037
Investments in and advances to unconsolidated affiliates	5,242	5,394
Intercompany accounts	0	0
Other non-current assets	5,063,874	5,134,220
Total assets	13,016,167	13,149,713
Current liabilities	1,568,900	1,609,110
Intercompany accounts	162,313	213,959
Deferred income taxes, net	285,448	360,409
Long-term debt, net	2,056,962	2,131,015
Other long-term obligations	2,259,167	2,305,353
Total liabilities	6,332,790	6,619,846
Redeemable noncontrolling interests	86,968	79,778
MGM Resorts International stockholders' equity	4,203,596	4,040,676
Noncontrolling interests	2,392,813	2,409,413
Total stockholders' equity	6,596,409	6,450,089
Total liabilities and stockholders' equity	13,016,167	13,149,713
Elimination [Member]
Condensed Balance Sheet Statements Captions [Line Items]
Current assets	(3,879)	(7,323)
Property and equipment, net	(9,891,994)	(10,033,422)
Investments in subsidiaries	(25,117,492)	(24,344,915)
Investments in the MGP Operating Partnership	(4,350,940)	(4,411,100)
Investments in and advances to unconsolidated affiliates	25,000	25,000
Intercompany accounts	(6,514,427)	(5,998,499)
Other non-current assets	(43,801)	(44,588)
Total assets	(45,897,533)	(44,814,847)
Current liabilities	(220,854)	(213,540)
Intercompany accounts	(6,514,427)	(5,998,499)
Deferred income taxes, net	(28,544)	(28,544)
Long-term debt, net	0	0
Other long-term obligations	(9,482,215)	(9,501,171)
Total liabilities	(16,246,040)	(15,741,754)
Redeemable noncontrolling interests	0	0
MGM Resorts International stockholders' equity	(29,651,493)	(29,073,093)
Noncontrolling interests	0	0
Total stockholders' equity	(29,651,493)	(29,073,093)
Total liabilities and stockholders' equity	$ (45,897,533)	$ (44,814,847)

Condensed Consolidating Finan47

Condensed Consolidating Financial Information - Schedule of Condensed Consolidating Statement of Operations and Comprehensive Income (Loss) Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Condensed Income Statements Captions [Line Items]
Revenues	$ 2,858,695	$ 2,652,133	$ 5,680,932	$ 5,369,699
Equity in subsidiaries' earnings	0	0	0	0
Expenses
Casino and hotel operations	1,669,414	1,520,616	3,304,624	3,052,986
General and administrative	438,453	354,349	856,343	743,137
Corporate expense	103,438	79,448	202,947	152,580
Preopening and start-up expenses	19,077	21,093	85,994	36,159
Property transactions, net	16,970	13,243	22,868	14,939
Depreciation and amortization	296,208	244,754	565,030	494,523
Total expenses	2,543,560	2,192,874	5,037,806	4,453,695
NV Energy exit expense	0	(40,629)	0	(40,629)
Income (loss) from unconsolidated affiliates	47,940	40,639	79,706	80,405
Operating income (loss)	363,075	499,898	722,832	996,409
Interest expense, net of amounts capitalized	(181,493)	(174,058)	(349,402)	(348,117)
Other, net	(17,449)	(11,307)	(28,375)	(19,045)
Income before income taxes	164,133	314,533	345,055	629,247
Benefit (provision) for income taxes	(23,710)	(73,660)	61,669	(135,800)
Net income	140,423	240,873	406,724	493,447
Less: Net income attributable to noncontrolling interests	(16,646)	(31,009)	(59,503)	(77,171)
Net income attributable to MGM Resorts International	123,777	209,864	347,221	416,276
Net income	140,423	240,873	406,724	493,447
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustment	1,400	(25,376)	(22,752)	(38,309)
Unrealized gain (loss) on cash flow hedges	5,335	(3,323)	19,191	(3,957)
Other comprehensive income (loss)	6,735	(28,699)	(3,561)	(42,266)
Comprehensive income	147,158	212,174	403,163	451,181
Less: Comprehensive income attributable to noncontrolling interests	(19,138)	(18,675)	(55,569)	(59,106)
Comprehensive income attributable to MGM Resorts International	128,020	193,499	347,594	392,075
Foreign currency translation adjustment	1,400	(25,376)	(22,752)	(38,309)
Unrealized gain (loss) on cash flow hedges	5,335	(3,323)	19,191	(3,957)
Other comprehensive income (loss)	6,735	(28,699)	(3,561)	(42,266)
Comprehensive income	147,158	212,174	403,163	451,181
Less: Comprehensive income attributable to noncontrolling interests	(19,138)	(18,675)	(55,569)	(59,106)
Comprehensive income attributable to MGM Resorts International	128,020	193,499	347,594	392,075
Reportable Legal Entities [Member] | Parent [Member]
Condensed Income Statements Captions [Line Items]
Revenues	0	0	0	0
Equity in subsidiaries' earnings	309,334	424,981	637,601	827,050
Expenses
Casino and hotel operations	2,562	2,616	5,277	5,125
General and administrative	2,408	2,131	4,758	4,113
Corporate expense	39,707	31,488	79,008	54,881
Preopening and start-up expenses	0	0	0	0
Property transactions, net	0	0	0	0
Depreciation and amortization	0	0	0	0
Total expenses	44,677	36,235	89,043	64,119
NV Energy exit expense		0		0
Income (loss) from unconsolidated affiliates	0	0	0	0
Operating income (loss)	264,657	388,746	548,558	762,931
Interest expense, net of amounts capitalized	(115,531)	(122,942)	(225,089)	(246,298)
Other, net	15,356	13,389	31,128	27,476
Income before income taxes	164,482	279,193	354,597	544,109
Benefit (provision) for income taxes	(40,705)	(69,329)	(7,376)	(127,833)
Net income	123,777	209,864	347,221	416,276
Less: Net income attributable to noncontrolling interests	0	0	0	0
Net income attributable to MGM Resorts International	123,777	209,864	347,221	416,276
Net income	123,777	209,864	347,221	416,276
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustment	583	(14,018)	(12,785)	(21,370)
Unrealized gain (loss) on cash flow hedges	3,660	(2,347)	13,158	(2,831)
Other comprehensive income (loss)	4,243	(16,365)	373	(24,201)
Comprehensive income	128,020	193,499	347,594	392,075
Less: Comprehensive income attributable to noncontrolling interests	0	0	0	0
Comprehensive income attributable to MGM Resorts International	128,020	193,499	347,594	392,075
Foreign currency translation adjustment	583	(14,018)	(12,785)	(21,370)
Unrealized gain (loss) on cash flow hedges	3,660	(2,347)	13,158	(2,831)
Other comprehensive income (loss)	4,243	(16,365)	373	(24,201)
Comprehensive income	128,020	193,499	347,594	392,075
Less: Comprehensive income attributable to noncontrolling interests	0	0	0	0
Comprehensive income attributable to MGM Resorts International	128,020	193,499	347,594	392,075
Reportable Legal Entities [Member] | Guarantor Subsidiaries [Member]
Condensed Income Statements Captions [Line Items]
Revenues	1,937,394	1,907,756	3,827,187	3,833,174
Equity in subsidiaries' earnings	22,519	36,260	67,054	88,418
Expenses
Casino and hotel operations	1,094,872	1,063,046	2,144,891	2,114,466
General and administrative	315,659	265,778	626,509	563,979
Corporate expense	53,652	45,347	104,059	92,598
Preopening and start-up expenses	1,937	2,131	8,679	2,775
Property transactions, net	17,083	13,060	22,225	14,607
Depreciation and amortization	158,753	160,402	315,400	323,101
Total expenses	1,641,956	1,509,135	3,221,763	3,070,897
NV Energy exit expense		(40,629)		(40,629)
Income (loss) from unconsolidated affiliates	48,294	40,652	79,926	80,499
Operating income (loss)	366,251	475,533	752,404	931,194
Interest expense, net of amounts capitalized	(156)	(176)	(293)	(634)
Other, net	(118,368)	(119,693)	(226,318)	(228,187)
Income before income taxes	247,727	355,664	525,793	702,373
Benefit (provision) for income taxes	0	0	0	0
Net income	247,727	355,664	525,793	702,373
Less: Net income attributable to noncontrolling interests	0	0	0	0
Net income attributable to MGM Resorts International	247,727	355,664	525,793	702,373
Net income	247,727	355,664	525,793	702,373
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustment	583	(14,018)	(12,785)	(21,370)
Unrealized gain (loss) on cash flow hedges	0	0	0	0
Other comprehensive income (loss)	583	(14,018)	(12,785)	(21,370)
Comprehensive income	248,310	341,646	513,008	681,003
Less: Comprehensive income attributable to noncontrolling interests	0	0	0	0
Comprehensive income attributable to MGM Resorts International	248,310	341,646	513,008	681,003
Foreign currency translation adjustment	583	(14,018)	(12,785)	(21,370)
Unrealized gain (loss) on cash flow hedges	0	0	0	0
Other comprehensive income (loss)	583	(14,018)	(12,785)	(21,370)
Comprehensive income	248,310	341,646	513,008	681,003
Less: Comprehensive income attributable to noncontrolling interests	0	0	0	0
Comprehensive income attributable to MGM Resorts International	248,310	341,646	513,008	681,003
Reportable Legal Entities [Member] | Non-Guarantor MGP Subsidiaries [Member]
Condensed Income Statements Captions [Line Items]
Revenues	220,390	184,456	436,229	368,355
Equity in subsidiaries' earnings	0	0	0	0
Expenses
Casino and hotel operations	0	0	0	0
General and administrative	27,219	20,642	49,718	41,129
Corporate expense	10,746	2,833	21,227	5,684
Preopening and start-up expenses	0	0	0	0
Property transactions, net	14,426	10,587	18,512	17,442
Depreciation and amortization	67,474	60,227	136,465	121,911
Total expenses	119,865	94,289	225,922	186,166
NV Energy exit expense		0		0
Income (loss) from unconsolidated affiliates	0	0	0	0
Operating income (loss)	100,525	90,167	210,307	182,189
Interest expense, net of amounts capitalized	(49,276)	(44,818)	(98,506)	(89,454)
Other, net	(1,927)	(297)	(3,079)	247
Income before income taxes	49,322	45,052	108,722	92,982
Benefit (provision) for income taxes	(1,263)	(1,177)	(2,494)	(2,415)
Net income	48,059	43,875	106,228	90,567
Less: Net income attributable to noncontrolling interests	(13,146)	(10,680)	(28,976)	(22,028)
Net income attributable to MGM Resorts International	34,913	33,195	77,252	68,539
Net income	48,059	43,875	106,228	90,567
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustment	0	0	0	0
Unrealized gain (loss) on cash flow hedges	6,281	(4,112)	22,636	(4,746)
Other comprehensive income (loss)	6,281	(4,112)	22,636	(4,746)
Comprehensive income	54,340	39,763	128,864	85,821
Less: Comprehensive income attributable to noncontrolling interests	(14,821)	(9,705)	(35,009)	(20,903)
Comprehensive income attributable to MGM Resorts International	39,519	30,058	93,855	64,918
Foreign currency translation adjustment	0	0	0	0
Unrealized gain (loss) on cash flow hedges	6,281	(4,112)	22,636	(4,746)
Other comprehensive income (loss)	6,281	(4,112)	22,636	(4,746)
Comprehensive income	54,340	39,763	128,864	85,821
Less: Comprehensive income attributable to noncontrolling interests	(14,821)	(9,705)	(35,009)	(20,903)
Comprehensive income attributable to MGM Resorts International	39,519	30,058	93,855	64,918
Reportable Legal Entities [Member] | Non-Guarantor Other Subsidiaries [Member]
Condensed Income Statements Captions [Line Items]
Revenues	921,382	745,312	1,854,329	1,538,375
Equity in subsidiaries' earnings	0	0	0	0
Expenses
Casino and hotel operations	572,061	455,889	1,155,040	935,244
General and administrative	120,386	86,440	225,076	175,045
Corporate expense	5,192	(48)	10,544	(240)
Preopening and start-up expenses	17,140	18,962	77,315	33,384
Property transactions, net	(113)	3,097	643	3,246
Depreciation and amortization	137,440	84,352	249,588	171,422
Total expenses	852,106	648,692	1,718,206	1,318,101
NV Energy exit expense		0		0
Income (loss) from unconsolidated affiliates	(354)	(13)	(220)	(94)
Operating income (loss)	68,922	96,607	135,903	220,180
Interest expense, net of amounts capitalized	(16,530)	(6,122)	(25,514)	(11,731)
Other, net	(49,288)	(27,857)	(95,975)	(57,455)
Income before income taxes	3,104	62,628	14,414	150,994
Benefit (provision) for income taxes	18,258	(3,154)	71,539	(5,552)
Net income	21,362	59,474	85,953	145,442
Less: Net income attributable to noncontrolling interests	(3,500)	(20,329)	(30,527)	(55,143)
Net income attributable to MGM Resorts International	17,862	39,145	55,426	90,299
Net income	21,362	59,474	85,953	145,442
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustment	1,400	(25,376)	(22,752)	(38,309)
Unrealized gain (loss) on cash flow hedges	0	0	0	0
Other comprehensive income (loss)	1,400	(25,376)	(22,752)	(38,309)
Comprehensive income	22,762	34,098	63,201	107,133
Less: Comprehensive income attributable to noncontrolling interests	(4,317)	(8,970)	(20,560)	(38,203)
Comprehensive income attributable to MGM Resorts International	18,445	25,128	42,641	68,930
Foreign currency translation adjustment	1,400	(25,376)	(22,752)	(38,309)
Unrealized gain (loss) on cash flow hedges	0	0	0	0
Other comprehensive income (loss)	1,400	(25,376)	(22,752)	(38,309)
Comprehensive income	22,762	34,098	63,201	107,133
Less: Comprehensive income attributable to noncontrolling interests	(4,317)	(8,970)	(20,560)	(38,203)
Comprehensive income attributable to MGM Resorts International	18,445	25,128	42,641	68,930
Elimination [Member]
Condensed Income Statements Captions [Line Items]
Revenues	(220,471)	(185,391)	(436,813)	(370,205)
Equity in subsidiaries' earnings	(331,853)	(461,241)	(704,655)	(915,468)
Expenses
Casino and hotel operations	(81)	(935)	(584)	(1,849)
General and administrative	(27,219)	(20,642)	(49,718)	(41,129)
Corporate expense	(5,859)	(172)	(11,891)	(343)
Preopening and start-up expenses	0	0	0	0
Property transactions, net	(14,426)	(13,501)	(18,512)	(20,356)
Depreciation and amortization	(67,459)	(60,227)	(136,423)	(121,911)
Total expenses	(115,044)	(95,477)	(217,128)	(185,588)
NV Energy exit expense		0		0
Income (loss) from unconsolidated affiliates	0	0	0	0
Operating income (loss)	(437,280)	(551,155)	(924,340)	(1,100,085)
Interest expense, net of amounts capitalized	0	0	0	0
Other, net	136,778	123,151	265,869	238,874
Income before income taxes	(300,502)	(428,004)	(658,471)	(861,211)
Benefit (provision) for income taxes	0	0	0	0
Net income	(300,502)	(428,004)	(658,471)	(861,211)
Less: Net income attributable to noncontrolling interests	0	0	0	0
Net income attributable to MGM Resorts International	(300,502)	(428,004)	(658,471)	(861,211)
Net income	(300,502)	(428,004)	(658,471)	(861,211)
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustment	(1,166)	28,036	25,570	42,740
Unrealized gain (loss) on cash flow hedges	(4,606)	3,136	(16,603)	3,620
Other comprehensive income (loss)	(5,772)	31,172	8,967	46,360
Comprehensive income	(306,274)	(396,832)	(649,504)	(814,851)
Less: Comprehensive income attributable to noncontrolling interests	0	0	0	0
Comprehensive income attributable to MGM Resorts International	(306,274)	(396,832)	(649,504)	(814,851)
Foreign currency translation adjustment	(1,166)	28,036	25,570	42,740
Unrealized gain (loss) on cash flow hedges	(4,606)	3,136	(16,603)	3,620
Other comprehensive income (loss)	(5,772)	31,172	8,967	46,360
Comprehensive income	(306,274)	(396,832)	(649,504)	(814,851)
Less: Comprehensive income attributable to noncontrolling interests	0	0	0	0
Comprehensive income attributable to MGM Resorts International	$ (306,274)	$ (396,832)	$ (649,504)	$ (814,851)

Condensed Consolidating Finan48

Condensed Consolidating Financial Information - Schedule of Condensed Consolidating Statement of Cash Flows Information (Detail) - USD ($) $ in Thousands	1 Months Ended		6 Months Ended
	May 31, 2018	Apr. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Cash flows from operating activities
Net cash provided by (used in) operating activities			$ 1,093,151	$ 939,126
Cash flows from investing activities
Capital expenditures, net of construction payable			(861,761)	(872,610)
Dispositions of property and equipment			440	293
Investments in unconsolidated affiliates			(2,503)	(4,773)
Distributions from unconsolidated affiliates in excess of cumulative earnings	$ 200,000	$ 300,000	200,000	300,000
Intercompany accounts			0	0
Other			(15,609)	(15,688)
Net cash used in investing activities			(679,433)	(592,778)
Investments in unconsolidated affiliates			2,503	4,773
Cash flows from financing activities
Net borrowings (repayments) under bank credit facilities – maturities of 90 days or less			(360,874)	204,852
Issuance of long-term debt			1,000,000	0
Debt issuance costs			(64,777)	(5,403)
Dividends paid to common shareholders			(133,334)	(126,429)
Distributions to noncontrolling interest owners			(101,407)	(89,872)
MGP Operating Partnership distributions paid to consolidated subsidiaries			0	0
Purchases of common stock			(957,264)	0
Retirement of debentures			(2,265)	0
Intercompany accounts			0	0
Other			(18,230)	(16,093)
Net cash provided by (used in) financing activities			(638,151)	(32,945)
Effect of exchange rate on cash			(2,690)	(2,922)
Cash and cash equivalents
Net increase (decrease) for the period			(227,123)	310,481
Balance, beginning of period			1,499,995	1,446,581
Balance, end of period			1,272,872	1,757,062
Reportable Legal Entities [Member] | Parent [Member]
Cash flows from operating activities
Net cash provided by (used in) operating activities			(224,359)	(384,587)
Cash flows from investing activities
Capital expenditures, net of construction payable			0	0
Dispositions of property and equipment			0	0
Investments in unconsolidated affiliates			0	0
Distributions from unconsolidated affiliates in excess of cumulative earnings			0	0
Intercompany accounts			0	0
Other			0	0
Net cash used in investing activities			0	0
Investments in unconsolidated affiliates			0	0
Cash flows from financing activities
Net borrowings (repayments) under bank credit facilities – maturities of 90 days or less			(141,250)	(6,250)
Issuance of long-term debt			1,000,000
Debt issuance costs			(14,414)	0
Dividends paid to common shareholders			(133,334)	(126,429)
Distributions to noncontrolling interest owners			0	0
MGP Operating Partnership distributions paid to consolidated subsidiaries			0	0
Purchases of common stock			(957,264)
Retirement of debentures			0
Intercompany accounts			505,289	924,157
Other			(9,393)	(11,702)
Net cash provided by (used in) financing activities			249,634	779,776
Effect of exchange rate on cash			0	0
Cash and cash equivalents
Net increase (decrease) for the period			25,275	395,189
Balance, beginning of period			26,870	99,995
Balance, end of period			52,145	495,184
Reportable Legal Entities [Member] | Guarantor Subsidiaries [Member]
Cash flows from operating activities
Net cash provided by (used in) operating activities			624,484	656,632
Cash flows from investing activities
Capital expenditures, net of construction payable			(367,713)	(144,433)
Dispositions of property and equipment			435	174
Investments in unconsolidated affiliates			(2,503)	(4,773)
Distributions from unconsolidated affiliates in excess of cumulative earnings			200,000	300,000
Intercompany accounts			(515,927)	(886,611)
Other			(9,916)	(6,560)
Net cash used in investing activities			(695,624)	(742,203)
Investments in unconsolidated affiliates			2,503	4,773
Cash flows from financing activities
Net borrowings (repayments) under bank credit facilities – maturities of 90 days or less			0	0
Issuance of long-term debt			0
Debt issuance costs			0	0
Dividends paid to common shareholders			0	0
Distributions to noncontrolling interest owners			0	0
MGP Operating Partnership distributions paid to consolidated subsidiaries			0	0
Purchases of common stock			0
Retirement of debentures			(2,265)
Intercompany accounts			48,052	58,984
Other			(4,200)	0
Net cash provided by (used in) financing activities			41,587	58,984
Effect of exchange rate on cash			0	0
Cash and cash equivalents
Net increase (decrease) for the period			(29,553)	(26,587)
Balance, beginning of period			311,043	307,713
Balance, end of period			281,490	281,126
Reportable Legal Entities [Member] | Non-Guarantor MGP Subsidiaries [Member]
Cash flows from operating activities
Net cash provided by (used in) operating activities			284,333	230,718
Cash flows from investing activities
Capital expenditures, net of construction payable			(190)	0
Dispositions of property and equipment			0	0
Investments in unconsolidated affiliates			0	0
Distributions from unconsolidated affiliates in excess of cumulative earnings			0	0
Intercompany accounts			0	0
Other			0	0
Net cash used in investing activities			(190)	0
Investments in unconsolidated affiliates			0	0
Cash flows from financing activities
Net borrowings (repayments) under bank credit facilities – maturities of 90 days or less			(13,000)	(25,125)
Issuance of long-term debt			0
Debt issuance costs			(17,490)	(1,024)
Dividends paid to common shareholders			0	0
Distributions to noncontrolling interest owners			(59,553)	(44,564)
MGP Operating Partnership distributions paid to consolidated subsidiaries			(163,913)	(143,655)
Purchases of common stock			0
Retirement of debentures			0
Intercompany accounts			0	0
Other			0	0
Net cash provided by (used in) financing activities			(253,956)	(214,368)
Effect of exchange rate on cash			0	0
Cash and cash equivalents
Net increase (decrease) for the period			30,187	16,350
Balance, beginning of period			259,722	360,492
Balance, end of period			289,909	376,842
Reportable Legal Entities [Member] | Non-Guarantor Other Subsidiaries [Member]
Cash flows from operating activities
Net cash provided by (used in) operating activities			408,693	436,363
Cash flows from investing activities
Capital expenditures, net of construction payable			(493,858)	(728,177)
Dispositions of property and equipment			5	119
Investments in unconsolidated affiliates			0	0
Distributions from unconsolidated affiliates in excess of cumulative earnings			0	0
Intercompany accounts			0	0
Other			(5,693)	(9,128)
Net cash used in investing activities			(499,546)	(737,186)
Investments in unconsolidated affiliates			0	0
Cash flows from financing activities
Net borrowings (repayments) under bank credit facilities – maturities of 90 days or less			(206,624)	236,227
Issuance of long-term debt			0
Debt issuance costs			(32,873)	(4,379)
Dividends paid to common shareholders			0	0
Distributions to noncontrolling interest owners			(41,854)	(45,308)
MGP Operating Partnership distributions paid to consolidated subsidiaries			0	0
Purchases of common stock			0
Retirement of debentures			0
Intercompany accounts			126,499	47,125
Other			(4,637)	(4,391)
Net cash provided by (used in) financing activities			(159,489)	229,274
Effect of exchange rate on cash			(2,690)	(2,922)
Cash and cash equivalents
Net increase (decrease) for the period			(253,032)	(74,471)
Balance, beginning of period			902,360	678,381
Balance, end of period			649,328	603,910
Elimination [Member]
Cash flows from operating activities
Net cash provided by (used in) operating activities			0	0
Cash flows from investing activities
Capital expenditures, net of construction payable			0	0
Dispositions of property and equipment			0	0
Investments in unconsolidated affiliates			0	0
Distributions from unconsolidated affiliates in excess of cumulative earnings			0	0
Intercompany accounts			515,927	886,611
Other			0	0
Net cash used in investing activities			515,927	886,611
Investments in unconsolidated affiliates			0	0
Cash flows from financing activities
Net borrowings (repayments) under bank credit facilities – maturities of 90 days or less			0	0
Issuance of long-term debt			0
Debt issuance costs			0	0
Dividends paid to common shareholders			0	0
Distributions to noncontrolling interest owners			0	0
MGP Operating Partnership distributions paid to consolidated subsidiaries			163,913	143,655
Purchases of common stock			0
Retirement of debentures			0
Intercompany accounts			(679,840)	(1,030,266)
Other			0	0
Net cash provided by (used in) financing activities			(515,927)	(886,611)
Effect of exchange rate on cash			0	0
Cash and cash equivalents
Net increase (decrease) for the period			0	0
Balance, beginning of period			0	0
Balance, end of period			$ 0	$ 0