MGM Resorts International (MGM) 10-K 27 Feb 19 2018 FY Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($) $ in Billions	12 Months Ended
	Dec. 31, 2018	Feb. 22, 2019	Jun. 30, 2018
Document And Entity Information [Abstract]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2018
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	FY
Trading Symbol	MGM
Entity Registrant Name	MGM Resorts International
Entity Central Index Key	789,570
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	Yes
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		536,916,609
Entity Public Float			$ 15.6

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Current assets
Cash and cash equivalents	$ 1,526,762	$ 1,499,995
Accounts receivable, net	657,206	542,273
Inventories	110,831	102,292
Income tax receivable	28,431	42,551
Prepaid expenses and other	203,548	189,244
Total current assets	2,526,778	2,376,355
Property and equipment, net	20,729,888	19,635,459
Other assets
Investments in and advances to unconsolidated affiliates	732,867	1,033,297
Goodwill	1,821,392	1,806,531
Other intangible assets, net	3,944,463	3,877,960
Other long-term assets, net	455,318	430,440
Total other assets	6,954,040	7,148,228
Total assets	30,210,706	29,160,042
Current liabilities
Accounts payable	302,578	255,028
Construction payable	311,793	474,807
Current portion of long-term debt	43,411	158,042
Accrued interest on long-term debt	140,046	135,785
Other accrued liabilities	2,151,054	2,114,635
Total current liabilities	2,948,882	3,138,297
Deferred income taxes, net	1,342,538	1,295,375
Long-term debt, net	15,088,005	12,751,052
Other long-term obligations	259,240	284,416
Commitments and contingencies (Note 11)
Redeemable noncontrolling interests	102,250	79,778
Stockholders' equity
Common stock, $.01 par value: authorized 1,000,000,000 shares, issued and outstanding 527,479,528 and 566,275,789 shares	5,275	5,663
Capital in excess of par value	4,092,085	5,357,709
Retained earnings	2,423,479	2,217,299
Accumulated other comprehensive loss	(8,556)	(3,610)
Total MGM Resorts International stockholders' equity	6,512,283	7,577,061
Noncontrolling interests	3,957,508	4,034,063
Total stockholders' equity	10,469,791	11,611,124
Total liabilities and stockholders' equity	$ 30,210,706	$ 29,160,042

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - $ / shares	Dec. 31, 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	527,479,528	566,275,789
Common stock, outstanding shares	527,479,528	566,275,789

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Revenues
Revenues	$ 11,763,096	$ 10,797,479	$ 9,478,269
Expenses
General and administrative	1,764,638	1,559,575	1,378,534
Corporate expense	419,204	356,872	312,705
NV Energy exit expense	0	(40,629)	139,335
Preopening and start-up expenses	151,392	118,475	140,075
Property transactions, net	9,147	50,279	17,078
Gain on Borgata transaction	0	0	(430,118)
Depreciation and amortization	1,178,044	993,480	849,527
Total expenses	10,441,300	9,231,174	7,928,357
Income from unconsolidated affiliates	147,690	146,222	528,287
Operating income	1,469,486	1,712,527	2,078,199
Non-operating income (expense)
Interest expense, net of amounts capitalized	(769,513)	(668,745)	(694,773)
Non-operating items from unconsolidated affiliates	(47,827)	(34,751)	(53,139)
Other, net	(18,140)	(48,241)	(72,698)
Total non-operating income (expense)	(835,480)	(751,737)	(820,610)
Income before income taxes	634,006	960,790	1,257,589
Benefit (provision) for income taxes	(50,112)	1,127,394	(21,743)
Net income	583,894	2,088,184	1,235,846
Less: Net income attributable to noncontrolling interests	(117,122)	(136,132)	(135,438)
Net income attributable to MGM Resorts International	$ 466,772	$ 1,952,052	$ 1,100,408
Earnings per share
Basic	$ 0.82	$ 3.38	$ 1.94
Diluted	$ 0.81	$ 3.34	$ 1.92
Weighted average common shares outstanding
Basic	544,253	572,253	568,134
Diluted	549,536	578,795	573,317
Casino [Member]
Revenues
Revenues	$ 5,753,150	$ 5,016,426	$ 4,108,126
Expenses
Expenses	3,199,775	2,673,397	2,213,922
Rooms [Member]
Revenues
Revenues	2,212,573	2,152,741	2,003,027
Expenses
Expenses	791,761	748,947	697,977
Food and Beverage [Member]
Revenues
Revenues	1,959,021	1,871,969	1,727,805
Expenses
Expenses	1,501,868	1,414,611	1,310,969
Entertainment, Retail and Other [Member]
Revenues
Revenues	1,412,860	1,354,301	1,242,159
Expenses
Expenses	999,979	954,125	901,201
Reimbursed Costs [Member]
Revenues
Revenues	425,492	402,042	397,152
Expenses
Expenses	$ 425,492	$ 402,042	$ 397,152

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 5,760	$ 171,410	$ 140,423	$ 266,301	$ 1,418,993	$ 175,744	$ 240,873	$ 252,574	$ 583,894	$ 2,088,184	$ 1,235,846
Other comprehensive loss, net of tax:
Foreign currency translation adjustment									(13,022)	(43,188)	(2,680)
Unrealized gain on cash flow hedges									3,576	7,995	1,879
Other comprehensive loss									(9,446)	(35,193)	(801)
Comprehensive income									574,448	2,052,991	1,235,045
Less: Comprehensive income attributable to noncontrolling interests									(112,622)	(119,700)	(134,680)
Comprehensive income attributable to MGM Resorts International									$ 461,826	$ 1,933,291	$ 1,100,365

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Cash flows from operating activities
Net income	$ 583,894	$ 2,088,184	$ 1,235,846
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	1,178,044	993,480	849,527
Amortization of debt discounts, premiums and issuance costs	41,102	32,996	40,493
Loss on retirement of long-term debt	3,619	45,696	66,933
Provision for doubtful accounts	39,762	20,603	10,863
Stock-based compensation	70,177	62,494	55,487
Property transactions, net	9,147	50,279	17,078
Gain on Borgata transaction	0	0	(430,118)
Income from unconsolidated affiliates	(96,542)	(111,471)	(471,980)
Distributions from unconsolidated affiliates	11,563	13,050	16,905
Deferred income taxes	46,720	(1,259,406)	(81,183)
Change in operating assets and liabilities:
Accounts receivable	(149,554)	(17,972)	(31,866)
Inventories	(7,860)	(4,656)	10,806
Income taxes receivable and payable, net	14,120	(53,204)	13,385
Prepaid expenses and other	(15,535)	(46,974)	20,192
Prepaid Cotai land concession premium	6,879	(7,765)	(22,376)
Accounts payable and accrued liabilities	21,508	422,258	273,744
Other	(34,505)	(21,181)	(39,764)
Net cash provided by operating activities	1,722,539	2,206,411	1,533,972
Cash flows from investing activities
Capital expenditures, net of construction payable	(1,486,843)	(1,864,082)	(2,262,473)
Dispositions of property and equipment	25,612	718	3,944
Proceeds from partial disposition of investment in unconsolidated affiliate	0	0	15,000
Proceeds from sale of business units and investment in unconsolidated affiliate	163,616	0	0
Investments in and advances to unconsolidated affiliates	(56,295)	(16,727)	(3,633)
Distributions from unconsolidated affiliates in excess of cumulative earnings	322,631	301,211	542,097
Other	(17,208)	(1,712)	(11,696)
Net cash used in investing activities	(2,083,021)	(1,580,592)	(2,276,204)
Cash flows from financing activities
Net borrowings under bank credit facilities – maturities of 90 days or less	1,242,259	15,001	491,032
Borrowings under bank credit facilities – maturities longer than 90 days	0	0	1,845,375
Repayments under bank credit facilities – maturities longer than 90 days	0	0	(1,845,375)
Issuance of long-term debt	1,000,000	350,000	2,050,000
Retirement of senior debentures	(2,265)	(502,669)	(2,258,053)
Repayment of Borgata credit facility	0	0	(583,598)
Debt issuance costs	(76,519)	(9,977)	(139,584)
Issuance of MGM Growth Properties Class A shares in public offering	0	404,685	1,207,500
MGM Growth Properties Class A share issuance costs	0	(17,137)	(75,032)
Acquisition of MGM China shares	0	0	(100,000)
Dividends paid to common shareholders	(260,592)	(252,014)	0
Distributions to noncontrolling interest owners	(184,932)	(170,402)	(103,367)
Proceeds from issuance of redeemable noncontrolling interests	0	0	47,325
Purchases of common stock	(1,283,333)	(327,500)	0
Other	(45,384)	(58,765)	(16,801)
Net cash provided by (used in) financing activities	389,234	(568,778)	519,422
Effect of exchange rate on cash	(1,985)	(3,627)	(921)
Cash and cash equivalents
Net increase (decrease) for the period	26,767	53,414	(223,731)
Balance, beginning of period	1,499,995	1,446,581	1,670,312
Balance, end of period	1,526,762	1,499,995	1,446,581
Supplemental cash flow disclosures
Interest paid, net of amounts capitalized	723,609	658,637	661,166
Federal, state and foreign income taxes paid (refunds received), net	(10,100)	181,651	68,236
Non-cash investing and financing activities
Common stock issued for acquisition of MGM China shares	0	0	174,041
Deferred cash payment for acquisition of MGM China shares	0	0	43,265
Increase in construction accounts payable	0	204,466	20,241
Borgata [Member]
Adjustments to reconcile net income to net cash provided by operating activities:
Gain on Borgata transaction			(430,000)
Cash flows from investing activities
Acquisition, net of cash acquired	0	0	(559,443)
Cash flows from financing activities
Repayment of Borgata credit facility			(583,598)
Northfield Park associates LLC [Member]
Cash flows from investing activities
Acquisition, net of cash acquired	$ (1,034,534)	$ 0	$ 0

Consolidated Statements of Stoc

Consolidated Statements of Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total	Borgata [Member]	MGM Growth Properties LLC [Member]	MGM Growth Properties LLC [Member]Class A Shareholders [Member]	MGM National Harbor [Member]	MGM China [Member]	Common Stock [Member]	Common Stock [Member]Borgata [Member]	Common Stock [Member]MGM Growth Properties LLC [Member]	Common Stock [Member]MGM Growth Properties LLC [Member]Class A Shareholders [Member]	Common Stock [Member]MGM National Harbor [Member]	Common Stock [Member]MGM China [Member]	Capital in Excess of Par Value [Member]	Capital in Excess of Par Value [Member]Borgata [Member]	Capital in Excess of Par Value [Member]MGM Growth Properties LLC [Member]	Capital in Excess of Par Value [Member]MGM Growth Properties LLC [Member]Class A Shareholders [Member]	Capital in Excess of Par Value [Member]MGM National Harbor [Member]	Capital in Excess of Par Value [Member]MGM China [Member]	Retained Earnings (Accumulated Deficit) [Member]	Retained Earnings (Accumulated Deficit) [Member]Borgata [Member]	Retained Earnings (Accumulated Deficit) [Member]MGM Growth Properties LLC [Member]	Retained Earnings (Accumulated Deficit) [Member]MGM Growth Properties LLC [Member]Class A Shareholders [Member]	Retained Earnings (Accumulated Deficit) [Member]MGM National Harbor [Member]	Retained Earnings (Accumulated Deficit) [Member]MGM China [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Accumulated Other Comprehensive Income (Loss) [Member]Borgata [Member]	Accumulated Other Comprehensive Income (Loss) [Member]MGM Growth Properties LLC [Member]	Accumulated Other Comprehensive Income (Loss) [Member]MGM Growth Properties LLC [Member]Class A Shareholders [Member]	Accumulated Other Comprehensive Income (Loss) [Member]MGM National Harbor [Member]	Accumulated Other Comprehensive Income (Loss) [Member]MGM China [Member]	Total MGM Resorts International Stockholder's Equity [Member]	Total MGM Resorts International Stockholder's Equity [Member]Borgata [Member]	Total MGM Resorts International Stockholder's Equity [Member]MGM Growth Properties LLC [Member]	Total MGM Resorts International Stockholder's Equity [Member]MGM Growth Properties LLC [Member]Class A Shareholders [Member]	Total MGM Resorts International Stockholder's Equity [Member]MGM National Harbor [Member]	Total MGM Resorts International Stockholder's Equity [Member]MGM China [Member]	Non-Controlling Interests [Member]	Non-Controlling Interests [Member]Borgata [Member]	Non-Controlling Interests [Member]MGM Growth Properties LLC [Member]	Non-Controlling Interests [Member]MGM Growth Properties LLC [Member]Class A Shareholders [Member]	Non-Controlling Interests [Member]MGM National Harbor [Member]	Non-Controlling Interests [Member]MGM China [Member]
Beginning Balance at Dec. 31, 2015	$ 7,738,104						$ 5,648						$ 5,655,886						$ (581,952)						$ 14,022						$ 5,093,604						$ 2,644,500
Beginning Balance, Shares at Dec. 31, 2015							564,839
Net income	1,235,310						$ 0						0						1,100,408						0						1,100,408						134,902
Currency translation adjustment	(2,680)						0						0						0						(1,477)						(1,477)						(1,203)
Unrealized gain on cash flow hedges	1,879						0						0						0						1,434						1,434						445
Stock-based compensation	55,607						0						51,460						0						0						51,460						4,147
Issuance of common stock pursuant to stock-based compensation awards	(30,043)						$ 22						(30,065)						0						0						(30,043)						0
Issuance of common stock pursuant to stock-based compensation awards, Shares							2,225
Cash distributions and dividend payable to noncontrolling interest owners	(103,457)			$ (22,281)			$ 0			$ 0			0			$ 0			0			$ 0			0			$ 0			0			$ 0			(103,457)			$ (22,281)
Share issuance			$ 1,183,838						$ 0						$ (150,414)						$ 0						$ 0						$ (150,414)						$ 1,334,252
Issuance of performance share units	5,817						0						5,817						0						0						5,817						0
Acquisition transaction		$ 10,367				$ (142,612)		$ 0				$ 71		$ (18,385)				$ 127,146		$ 0				$ 0		$ 0				$ 1,074		$ (18,385)				$ 128,291		$ 28,752				$ (270,903)
Acquisition transaction, shares												7,060
Other	12,108						0						12,130						0						0						12,130						(22)
Ending Balance at Dec. 31, 2016	9,941,957						$ 5,741						5,653,575						518,456						15,053						6,192,825						3,749,132
Ending Balance, Shares at Dec. 31, 2016							574,124
Net income	2,080,372						$ 0						0						1,952,052						0						1,952,052						128,320
Currency translation adjustment	(43,188)						0						0						0						(23,995)						(23,995)						(19,193)
Unrealized gain on cash flow hedges	7,995						0						0						0						5,234						5,234						2,761
Stock-based compensation	62,522						0						57,531						0						0						57,531						4,991
Issuance of common stock pursuant to stock-based compensation awards	(33,780)						$ 22						(33,802)						0						0						(33,780)						0
Issuance of common stock pursuant to stock-based compensation awards, Shares							2,152
Cash distributions and dividend payable to noncontrolling interest owners	(147,685)			(29,777)			$ 0			0			0			0			0			0			0			0			0			0			(147,685)			(29,777)
Dividends declared to common shareholders	(252,014)						0						0						(252,014)						0						(252,014)						0
Share issuance				361,622						0						35,029						0						109						35,138						326,484
Issuance of performance share units	9,743						0						9,648						0						0						9,648						95
Repurchase of common stock	(327,500)						$ (100)						(327,400)						0						0						(327,500)						0
Repurchase of common stock, Shares							(10,000)
Adjustment of redeemable non-controlling interest to redemption value	(18,280)						$ 0						(18,280)						0						0						(18,280)						0
Acquisition transaction					$ 6,886						$ 0						$ (12,486)						$ 0						$ (11)						$ (12,497)						$ 19,383
Other	(7,749)						0						(6,106)						(1,195)						0						(7,301)						(448)
Ending Balance at Dec. 31, 2017	11,611,124						$ 5,663						5,357,709						2,217,299						(3,610)						7,577,061						4,034,063
Ending Balance, Shares at Dec. 31, 2017							566,276
Net income	574,886						$ 0						0						466,772						0						466,772						108,114
Currency translation adjustment	(13,022)						0						0						0						(7,422)						(7,422)						(5,600)
Unrealized gain on cash flow hedges	3,576						0						0						0						2,476						2,476						1,100
Stock-based compensation	70,196						0						65,072						0						0						65,072						5,124
Issuance of common stock pursuant to stock-based compensation awards	(32,202)						$ 23						(32,225)						0						0						(32,202)						0
Issuance of common stock pursuant to stock-based compensation awards, Shares							2,280
Cash distributions and dividend payable to noncontrolling interest owners	(147,321)			$ (31,732)			$ 0			$ 0			0			$ 0			0			$ 0			0			$ 0			0			$ 0			(147,321)			$ (31,732)
Dividends declared to common shareholders	(260,592)						0						0						(260,592)						0						(260,592)						0
Issuance of performance share units	3,716						0						3,609						0						0						3,609						107
Repurchase of common stock	(1,283,333)						$ (411)						(1,282,922)						0						0						(1,283,333)						0
Repurchase of common stock, Shares							(41,076)
Adjustment of redeemable non-controlling interest to redemption value	(21,326)						$ 0						(21,326)						0						0						(21,326)						0
Other	(4,179)						0						2,168						0						0						2,168						(6,347)
Ending Balance at Dec. 31, 2018	$ 10,469,791						$ 5,275						$ 4,092,085						$ 2,423,479						$ (8,556)						$ 6,512,283						$ 3,957,508
Ending Balance, Shares at Dec. 31, 2018							527,480

Consolidated Statements of St_2

Consolidated Statements of Stockholders' Equity (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Statement Of Stockholders Equity [Abstract]
Dividends declared to common shareholders	$ 0.48	$ 0.44

Organization

Organization	12 Months Ended
	Dec. 31, 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 was 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, MGM National Harbor in Prince George’s County, Maryland and MGM Springfield in Springfield, Massachusetts, which opened on August 24, 2018. 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 the Park, a dining and entertainment district located between New York-New York and Park MGM, Shadow Creek, an exclusive world-class golf course located approximately ten miles north of its Las Vegas Strip Resorts, Primm Valley Golf Club at the California/Nevada state line and Fallen Oak golf course in Saucier, Mississippi. MGM Growth Properties LLC (“MGP”), a consolidated subsidiary of the Company, is organized as an umbrella partnership REIT (commonly referred to as an UPREIT) structure in which substantially all of its assets are owned by and substantially all of its businesses are conducted through MGM Growth Properties Operating Partnership LP (the “Operating Partnership”). MGP has two classes of authorized and outstanding voting common shares (collectively, the “shares”): Class A shares and a single Class B share. The Company owns MGP’s Class B share, which does not provide its holder any rights to profits or losses or any rights to receive distributions from operations of MGP or upon liquidation or winding up of MGP. MGP’s Class A shareholders are entitled to one vote per share, while the Company, as the owner of the Class B share, is entitled to an amount of votes representing a majority of the total voting power of MGP’s shares so long as the Company and its controlled affiliates’ (excluding MGP) aggregate beneficial ownership of the combined economic interests in MGP and the Operating Partnership does not fall below 30%. The Company and MGP each hold Operating Partnership units representing limited partner interests in the Operating Partnership. The general partner of the Operating Partnership is a wholly-owned subsidiary of MGP. The Operating Partnership units held by the Company are exchangeable into Class A shares of MGP on a one-to-one basis, or cash at the fair value of a Class A share. The determination of settlement method is at the option of MGP’s independent conflicts committee. The Company and MGP’s ownership interest percentage in the Operating Partnership have varied based upon the transactions that MGP has completed, as discussed in Note 12. As of December 31, 2018, the Company owned 73.3% of the Operating Partnership units, and MGP held the remaining 26.7% ownership interest in the Operating Partnership. 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. In July 2018, MGP acquired the membership interests of Northfield Park Associates, LLC (“Northfield”), an Ohio limited liability company that owns the real estate assets and operations of the Hard Rock Rocksino Northfield Park from Milstein Entertainment LLC. Simultaneously with the close of the transaction, MGP entered into a new agreement with an affiliate of Hard Rock Café International (STP), Inc. to continue to serve as the manager of the property. Refer to Note 4 for additional information. In September 2018, the Company entered into an agreement with MGP to acquire all of the operating assets of Northfield from MGP. Northfield will be added to the existing master lease between the Company and MGP. The transaction is expected to close in the first half of 2019, subject to customary closing conditions. Refer to Note 4 for additional information. In January 2019, the Company acquired the real property and operations associated with the Empire City Casino's race track and casino ("Empire City"). MGP then acquired the developed real property associated with Empire City from the Company and the real estate assets of Empire City will be leased to the Company pursuant to an amendment to the master lease. Refer to Note 4 for additional information. 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 MGM Cotai, an integrated casino, hotel and entertainment resort located on the Cotai Strip in Macau that opened on February 13, 2018, as well as the related gaming subconcession and land concessions. 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. On August 30, 2018, CityCenter completed the sale of the Mandarin Oriental Las Vegas (“Mandarin Oriental”) and adjacent retail parcels. See Note 6 and Note 17 for additional information related to CityCenter. 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 also manages the T-Mobile Arena. 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 6 for additional information regarding the Company’s investment in the Las Vegas Arena Company. In August 2018, the Company, along with its joint venture partner, completed the sale of its 50% interest in Grand Victoria, a riverboat casino in Elgin, Illinois. See Note 6 for additional information regarding the Company’s investment in Grand Victoria. During the fourth quarter of 2018, the Company has changed the aggregation of its operations into three reportable segments: Las Vegas Strip Resorts, Regional Operations and MGM China. This change of reportable segments reflects realignment within the Company stemming from the expansion of the Company’s regional operations. See Note 16 for additional information about the Company’s segments.

Basis of Presentation and Signi

Basis of Presentation and Significant Accounting Policies	12 Months Ended
	Dec. 31, 2018
Accounting Policies [Abstract]
Basis of Presentation and Significant Accounting Policies	NOTE 2 — BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES Principles of consolidation. For entities not determined to be a variable interest entity (“VIE”), the Company consolidates such entities in which the Company owns 100% of the equity. For entities in which the Company owns less than 100% of the equity interest, the Company consolidates the entity if it has the direct or indirect ability to control the entities’ activities based upon the terms of the respective entities’ ownership agreements. For these entities, the Company records a noncontrolling interest in the consolidated balance sheets. The Company’s investments in unconsolidated affiliates which are 50% or less owned are accounted for under the equity method when the Company can exercise significant influence over or has joint control of the unconsolidated affiliate. All intercompany balances and transactions are eliminated in consolidation. The Company evaluates entities for which control is achieved through means other than voting rights to determine if it is the primary beneficiary of a VIE. A VIE is an entity in which either (i) the equity investors as a group, if any, lack the power through voting or similar rights to direct the activities of such entity that most significantly impact such entity’s economic performance or (ii) the equity investment at risk is insufficient to finance that entity’s activities without additional subordinated financial support. The Company identifies the primary beneficiary of a VIE as the enterprise that has both of the following characteristics: (i) the power to direct the activities of the VIE that most significantly impact the entity’s economic performance; and (ii) the obligation to absorb losses or receive benefits of the VIE that could potentially be significant to the entity. The Company consolidates its investment in a VIE when it determines that it is its primary beneficiary. For these VIEs, the Company records a noncontrolling interest in the consolidated balance sheets. The Company may change its original assessment of a VIE upon subsequent events such as the modification of contractual arrangements that affect the characteristics or adequacy of the entity’s equity investments at risk and the disposition of all or a portion of an interest held by the primary beneficiary. The Company performs this analysis on an ongoing basis. Management has determined that MGP is a 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 December 31, 2018 as noncontrolling interest in the Company’s consolidated financial statements. As of December 31, 2018, on a consolidated basis MGP had total assets of $11.0 billion, primarily related to its real estate investments, and total liabilities of $5.1 billion, primarily related to its indebtedness. Management’s use of estimates. The consolidated financial statements have been prepared in conformity with accounting principles generally accepted in the United States of America. These principles require the Company’s management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Fair value measurements. Fair value measurements affect the Company’s accounting and impairment assessments of its long-lived assets, investments in unconsolidated affiliates, cost method investments, assets acquired and liabilities assumed in an acquisition, and goodwill and other intangible assets. Fair value measurements also affect the Company’s accounting for certain of its financial assets and liabilities. Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date and is measured according to a hierarchy that includes: Level 1 inputs, such as quoted prices in an active market; Level 2 inputs, which are observable inputs for similar assets; or Level 3 inputs, which are unobservable inputs. The Company used the following inputs in its fair value measurements: • Level 1 and Level 2 inputs for its long-term debt fair value disclosures. See Note 9; • Level 2 and Level 3 inputs when assessing the fair value of assets acquired and liabilities assumed during the Northfield transaction and Borgata transaction. See Note 4. Cash and cash equivalents. Cash and cash equivalents include investments and interest bearing instruments with maturities of 90 days or less at the date of acquisition. Such investments are carried at cost, which approximates market value. Book overdraft balances resulting from the Company’s cash management program are recorded as accounts payable or construction payable as applicable. Accounts receivable and credit risk. Financial instruments that potentially subject the Company to concentrations of credit risk consist primarily of casino accounts receivable. The Company issues credit to approved casino customers and gaming promoters following background checks and investigations of creditworthiness. At December 31, 2018 and 2017, approximately 62% and 40%, respectively, of our gross casino accounts receivable were owed by customers from foreign countries, primarily Asia. Business or economic conditions or other significant events in these countries could affect the collectability of such receivables. Accounts receivable are typically non-interest bearing and are initially recorded at cost. Accounts are written off when management deems the account to be uncollectible. Recoveries of accounts previously written off are recorded when received. An estimated allowance for doubtful accounts is maintained to reduce the Company’s receivables to their net carrying amount, which approximates fair value. The allowance is estimated based on both a specific review of customer accounts as well as historical collection experience and current economic and business conditions. Management believes that as of December 31, 2018, no significant concentrations of credit risk existed for which an allowance had not already been recorded. Inventories. Inventories consist primarily of food and beverage, retail merchandise and operating supplies, and are stated at the lower of cost or net realizable value. Cost is determined primarily using the average cost method for food and beverage and operating supplies. Cost for retail merchandise is determined using the cost method. 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 or losses on dispositions of property and equipment are included in the determination of income or loss. Maintenance costs are expensed as incurred. As of December 31, 2018 and 2017, the Company had accrued $47 million and $28 million, respectively for property and equipment within accounts payable, and $2 million and $34 million, respectively, related to construction retention within other long-term liabilities. Property and equipment are generally depreciated over the following estimated useful lives on a straight-line basis: Buildings and improvements 15 to 40 years Land improvements 10 to 20 years Furniture and fixtures 3 to 20 years Equipment 3 to 15 years The Company evaluates its property and equipment and other long-lived assets for impairment based on its classification as held for sale or to be held and used. Several criteria must be met before an asset is classified as held for sale, including that management with the appropriate authority commits to a plan to sell the asset at a reasonable price in relation to its fair value and is actively seeking a buyer. For assets held for sale, the Company recognizes the asset at the lower of carrying value or fair market value less costs to sell, as estimated based on comparable asset sales, offers received, or a discounted cash flow model. For assets to be held and used, the Company reviews for impairment whenever indicators of impairment exist. The Company then compares the estimated future cash flows of the asset, on an undiscounted basis, to the carrying value of the asset. If the undiscounted cash flows exceed the carrying value, no impairment is indicated. If the undiscounted cash flows do not exceed the carrying value, then an impairment charge is recorded based on the fair value of the asset, typically measured using a discounted cash flow model. If an asset is still under development, future cash flows include remaining construction costs. All recognized impairment losses, whether for assets held for sale or assets to be held and used, are recorded as operating expenses. Capitalized interest. The interest cost associated with major development and construction projects is capitalized and included in the cost of the project. When no debt is incurred specifically for a project, interest is capitalized on amounts expended on the project using the weighted-average cost of the Company’s outstanding borrowings. Capitalization of interest ceases when the project is substantially complete or development activity is suspended for more than a brief period. Investments in and advances to unconsolidated affiliates. The Company has investments in unconsolidated affiliates accounted for under the equity method. Under the equity method, carrying value is adjusted for the Company’s share of the investees’ earnings and losses, amortization of certain basis differences, as well as capital contributions to and distributions from these companies. Distributions in excess of equity method earnings are recognized as a return of investment and recorded as investing cash inflows in the accompanying consolidated statements of cash flows. The Company classifies operating income and losses as well as gains and impairments related to its investments in unconsolidated affiliates as a component of operating income or loss and classifies non-operating income or losses related to its investments in unconsolidated affiliates as a component of non-operating income or loss, as the Company’s investments in such unconsolidated affiliates are an extension of the Company’s core business operations. The Company evaluates its investments in unconsolidated affiliates for impairment whenever events or changes in circumstances indicate that the carrying value of its investment may have experienced an “other-than-temporary” decline in value. If such conditions exist, the Company compares the estimated fair value of the investment to its carrying value to determine if an impairment is indicated and determines whether the impairment is “other-than-temporary” based on its assessment of all relevant factors, including consideration of the Company’s intent and ability to retain its investment. The Company estimates fair value using a discounted cash flow analysis based on estimated future results of the investee and market indicators of terminal year capitalization rates, and a market approach that utilizes business enterprise value multiples based on a range of multiples from the Company’s peer group. See Note 6 for results of the Company’s review of its investment in certain of its unconsolidated affiliates. Goodwill and other intangible assets. Goodwill represents the excess of purchase price over fair market value of net assets acquired in business combinations. Goodwill and indefinite-lived intangible assets must be reviewed for impairment at least annually and between annual test dates in certain circumstances. The Company performs its annual impairment tests in the fourth quarter of each fiscal year. No impairments were indicated or recorded as a result of the annual impairment review for goodwill and indefinite-lived intangible assets in 2018, 2017 and 2016. Accounting guidance provides entities the option to perform a qualitative assessment of goodwill and indefinite-lived intangible assets (commonly referred to as “step zero”) in order to determine whether further impairment testing is necessary. In performing the step zero analysis the Company considers macroeconomic conditions, industry and market considerations, current and forecasted financial performance, entity-specific events, and changes in the composition or carrying amount of net assets of reporting units for goodwill. In addition, the Company takes into consideration the amount of excess of fair value over carrying value determined in the last quantitative analysis that was performed, as well as the period of time that has passed since the last quantitative analysis. If the step zero analysis indicates that it is more likely than not that the fair value is less than its carrying amount, the entity would proceed to a quantitative analysis. Under the quantitative analysis, goodwill for relevant reporting units is tested for impairment using a discounted cash flow analysis based on the estimated future results of the Company’s reporting units discounted using market discount rates and market indicators of terminal year capitalization rates, and a market approach that utilizes business enterprise value multiples based on a range of multiples from the Company’s peer group. Effective January 1, 2017, the Company adopted accounting guidance that simplifies goodwill impairment testing by eliminating the requirement to calculate the implied fair value of goodwill (formerly “Step 2”) in the event that impairment is identified. Instead, an impairment charge is recognized for the amount by which the carrying value exceeds the reporting unit’s fair value, not to exceed the total amount of goodwill allocated to that reporting unit. Under the quantitative analysis, license rights are tested for impairment using a discounted cash flow approach, and trademarks are tested for impairment using the relief-from-royalty method. If the fair value of an indefinite-lived intangible asset is less than its carrying amount, an impairment loss is recognized equal to the difference. Revenue recognition. The Company’s revenue from contracts with customers consists of casino wagers 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 other goods and services provided by the Company to gaming patrons on a discretionary basis to incentivize gaming, the Company allocates revenue from the casino wager transaction to the good or service delivered based upon stand-alone selling price (“SSP”). Discretionary goods and services provided by the Company and supplied by third parties are recognized as an operating expense. 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. Commissions and incentives provided to gaming customers were collectively $2.3 billion, $2.1 billion and $1.8 billion for the years ended December 31, 2018, 2017 and 2016, 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 goods 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 owed 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 December 31 323,811 597,753 113,293 91,119 667,285 539,626 Increase / (decrease) $ (273,942 ) $ 370,215 $ 22,174 $ 2,740 $ 127,659 $ 102,339 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 16. 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. Lease revenues include $51 million, $51 million and $50 million recorded within food and beverage revenue for 2018, 2017 and 2016, respectively, and $87 million, $79 million and $77 million recorded within entertainment, retail, and other revenue for the same such periods, respectively. Advertising. The Company expenses advertising costs the first time the advertising takes place. Advertising expense, which is generally included in general and administrative expenses, was $305 million, $223 million and $171 million for 2018, 2017 and 2016, respectively. Corporate expense. Corporate expense represents unallocated payroll, aircraft costs, professional fees and various other expenses not directly related to the Company’s casino resort operations. In addition, corporate expense includes the costs associated with the Company’s evaluation and pursuit of new business opportunities, which are expensed as incurred. Preopening and start-up expenses. Preopening and start-up costs, including organizational costs, are expensed as incurred. Costs classified as preopening and start-up expenses include payroll, outside services, advertising, and other expenses related to new or start-up operations. Property transactions, net. The Company classifies transactions such as write-downs and impairments, demolition costs, and normal gains and losses on the sale of assets as “Property transactions, net.” See Note 15 for a detailed discussion of these amounts. Redeemable noncontrolling interest. Certain noncontrolling interest parties have non-voting economic interests in MGM National Harbor which provide for annual preferred distributions by MGM National Harbor to the noncontrolling interest parties based on a percentage of its annual net gaming revenue (as defined in the MGM National Harbor operating agreement). Such distributions are accrued each quarter and are paid 90-days after the end of each fiscal year. Beginning on December 31, 2019 the noncontrolling interest parties will each have the ability to require MGM National Harbor to purchase all or a portion of their interests for a purchase price based on a contractually agreed upon formula. Additionally, certain noncontrolling interest parties each have the right to sell back all or a portion of their interests prior to such date if MGM National Harbor were to guarantee or grant liens to secure any indebtedness of the Company or its affiliates other than the indebtedness of MGM National Harbor. The Company has recorded the interests as “Redeemable noncontrolling interests” in the mezzanine section of the accompanying consolidated balance sheets and not stockholders’ equity because their redemption is not exclusively in the Company’s control. The interests were initially accounted for at fair value. Subsequently, the Company recognizes changes in the redemption value as they occur and adjusts the carrying amount of the redeemable noncontrolling interests to equal the maximum redemption value, provided such amount does not fall below the initial carrying value, at the end of each reporting period. The Company records any changes caused by such an adjustment in capital in excess of par value. Additionally, the carrying amount of the redeemable noncontrolling interests is adjusted for accrued annual preferred distributions, with changes caused by such adjustments recorded within net income (loss) attributable to noncontrolling interests. 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. Year Ended December 31, 2018 2017 2016 Numerator: (In thousands) Net income attributable to MGM Resorts International $ 466,772 $ 1,952,052 $ 1,100,408 Adjustment related to redeemable noncontrolling interests (21,326 ) (18,363 ) (28 ) Net income available to common stockholders - basic 445,446 1,933,689 1,100,380 Potentially dilutive effect due to MGP and MGM China stock compensation plans (206 ) (268 ) (51 ) Net income attributable to common stockholders - diluted $ 445,240 $ 1,933,421 $ 1,100,329 Denominator: Weighted-average common shares outstanding basic 544,253 572,253 568,134 Potential dilution from share-based awards 5,283 6,542 5,183 Weighted-average common and common equivalent shares - diluted 549,536 578,795 573,317 Antidilutive share-based awards excluded from the calculation of diluted earnings per share 2,668 2,601 4,207 Currency translation. The Company translates the financial statements of foreign subsidiaries that are not denominated in U.S. dollars. Balance sheet accounts are translated at the exchange rate in effect at each balance sheet date. Income statement accounts are translated at the average rate of exchange prevailing during the period. Translation adjustments resulting from this process are recorded to other comprehensive income (loss). Accumulated other comprehensive income (loss). Comprehensive income (loss) includes net income (loss) and all other non-stockholder changes in equity, or other comprehensive income (loss). Elements of the Company’s accumulated other comprehensive income are reported in the accompanying consolidated statements of stockholders’ equity. Amounts reported in accumulated other comprehensive income related to cash flow hedges will be reclassified to interest expense as interest payments are made on our variable-rate debt. Recently issued accounting standards. In February 2016, the FASB issued ASC 842 “Leases (Topic 842)”, which replaces the existing guidance in Topic 840, “Leases”, (“ASC 842”). 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 classify and account for its lease agreements as either finance or operating. Both finance 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 will recognize interest expense associated with the lease liability and depreciation expense associated with the ROU asset; and for operating leases, the lessee will recognize straight-line rent expense. The Company will adopt ASC 842 on January 1, 2019 utilizing the simplified transition method and accordingly will not recast comparative period financial information. The Company will elect the basket of transition practical expedients which includes not needing to reassess: (1) whether any expired or existing contracts are or contain leases, (2) the lease classification for any expired or existing leases, and (3) direct costs for any existing leases. The Company also currently expects that the most significant impact will be the recognition of ROU assets and lease liabilities for operating leases that exist at the Company on the date of adoption with the most material of such leases being ground leases.

Accounts Receivable, Net

Accounts Receivable, Net	12 Months Ended
	Dec. 31, 2018
Receivables [Abstract]
Accounts Receivable, Net	NOTE 3 — ACCOUNTS RECEIVABLE, NET Accounts receivable, net consisted of the following: December 31, 2018 2017 (In thousands) Casino $ 419,127 $ 343,869 Hotel 154,707 146,931 Other 174,147 144,044 747,981 634,844 Less: Allowance for doubtful accounts (90,775 ) (92,571 ) $ 657,206 $ 542,273

Acquisition

Acquisition	12 Months Ended
	Dec. 31, 2018
Business Combinations [Abstract]
Acquisition	NOTE 4 — ACQUISITION Northfield On July 6, 2018, MGP completed its acquisition of 100% of the membership interests of Northfield for a purchase price of approximately $1.1 billion (“Northfield Acquisition”). MGP funded the acquisition through a $200 million draw on the Operating Partnership’s term loan A and a $655 million draw under the Operating Partnership’s revolving credit facility, with the remainder of the purchase price paid with cash on hand. The acquisition expanded MGP’s real estate assets and diversified MGP’s geographic reach. MGP recognized 100% of the assets and liabilities of Northfield at fair value at the date of the acquisition. Under the acquisition method, the fair value was allocated to the assets acquired and liabilities assumed in the transaction. The Company estimated fair value using both level 2 inputs, which are observable inputs for similar assets, and level 3 inputs, which are unobservable inputs. The allocation of fair value for substantially all of the assets and liabilities is preliminary and may be adjusted up to one year after the acquisition. Specifically, as of December 31, 2018, the Company is finalizing valuation work related to the asset classes that comprise the property and equipment acquired. The following table sets forth the preliminary purchase price allocation as of July 6, 2018 (in thousands): Fair value of assets acquired and liabilities assumed: Property and equipment $ 792,807 Cash and cash equivalents 35,831 Racing and gaming license 228,000 Customer list 25,000 Goodwill 17,915 Other assets 9,598 Other liabilities (38,786 ) $ 1,070,365 MGP recognized the identifiable intangible assets at fair value. The estimated fair values of the intangible assets were preliminarily determined using methodologies under the income approach based on significant inputs that were not observable. The goodwill is primarily attributable to the synergies expected to arise after the acquisition. As further discussed in Note 17, the Company entered into an agreement with MGP to acquire all of the operating assets of Northfield (“Northfield OpCo”) from MGP and the real estate assets of Northfield will be leased to a subsidiary of the Company. The transaction is expected to close in the first half of 2019, subject to customary closing conditions. The transaction will be an intercompany transaction and, accordingly, the effect will be eliminated in the Company’s consolidated financial statements. Consolidated results. For the period from July 6, 2018 through December 31, 2018, Northfield’s net revenue was $133 million, operating income and net income were both $33 million. Pro forma results of operations for the acquisition have not been presented because it is not material to the consolidated results of operations. Empire City On January 29, 2019, the Company acquired the real property and operations associated with the Empire City Casino's race track and casino (“Empire City”) for total consideration of approximately $864 million, plus customary working capital and other adjustments (“Empire City Acquisition”). The fair value of consideration paid included the assumption of debt of approximately $246 million, which was subsequently repaid, the issuance of approximately $266 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. Preliminary fair values for assets acquired and liabilities assumed are not reported herein as the Company is still in the process of completing the initial accounting for the acquisition. Following the completion of the acquisition of Empire City, MGP acquired the developed real property associated with Empire City from the Company and leases the real property to a subsidiary of the Company. See Note 17 for additional information. Borgata acquisition On August 1, 2016, the Company completed the acquisition of Boyd Gaming Corporation’s (“Boyd Gaming”) ownership interest in Borgata for cash consideration of $604 million. Following the completion of the acquisition of Boyd Gaming’s interest, MGP acquired Borgata’s real property from the Company and leases the real property to a subsidiary of the Company. Additionally, as discussed in Note 11, Borgata subsequently entered into a property tax reimbursement agreement in February 2017 with the Department of Community Affairs of the State of New Jersey and Atlantic City and received the settlement amount of $72 million in June 2017, half of which the Company paid Boyd Gaming, net of fees and expenses. Through the acquisition of Boyd Gaming’s interest in Borgata, the Company obtained 100% of the equity interests in Borgata and therefore consolidated Borgata as of August 1, 2016. The Company recognized 100% of the assets and liabilities of Borgata at fair value at the date of the acquisition. Prior to the acquisition, the Company held a 50% ownership interest in Borgata, which was accounted for under the equity method. The fair value of the equity interests of Borgata was determined by the transaction price and equaled approximately $1.2 billion. The carrying value of the Company’s equity method investment was significantly less than its share of the fair value of Borgata at the acquisition date, resulting in a $430 million gain on the acquisition. Borgata’s net revenue for the period from August 1, 2016 through December 31, 2016 was $350 million, operating income was $34 million and net income was $4 million. Pro forma information. The operating results for Borgata are included in the accompanying consolidated statements of operations from the date of acquisition. The following unaudited pro forma consolidated financial information for the Company has been prepared assuming the Company’s acquisition of its controlling interest has occurred as of January 1, 2015 and excludes the $430 million gain discussed above. The unaudited pro forma financial information below is not necessarily indicative of either future results of operations or results that might have been achieved had the acquisition been consummated as of January 1, 2015. Year Ended December 31, 2016 (In thousands, except per share data) (unaudited) Net revenues $ 9,963,322 Net income attributable to MGM Resorts International 818,247 Basis net income per share $ 1.44 Diluted net income per share $ 1.43

Property and Equipment, Net

Property and Equipment, Net	12 Months Ended
	Dec. 31, 2018
Property Plant And Equipment [Abstract]
Property and Equipment, Net	NOTE 5 — PROPERTY AND EQUIPMENT, NET Property and equipment, net consisted of the following: December 31, 2018 2017 (In thousands) Land $ 6,923,769 $ 6,531,701 Buildings, building improvements and land improvements 16,437,695 12,245,950 Furniture, fixtures and equipment 6,064,330 5,157,363 Construction in progress 321,944 3,950,635 29,747,738 27,885,649 Less: Accumulated depreciation (9,017,850 ) (8,250,190 ) $ 20,729,888 $ 19,635,459

Investments in and Advances to

Investments in and Advances to Unconsolidated Affiliates	12 Months Ended
	Dec. 31, 2018
Equity Method Investments And Joint Ventures [Abstract]
Investments in and Advances to Unconsolidated Affiliates	Investments in and advances to unconsolidated affiliates consisted of the following: December 31, 2018 2017 (In thousands) CityCenter Holdings, LLC – CityCenter (50%) $ 589,965 $ 808,220 Elgin Riverboat Resort–Riverboat Casino – Grand Victoria (50% at December 31, 2017) — 124,342 Las Vegas Arena Company, LLC (42.5%) 73,540 76,619 Other 69,362 24,116 $ 732,867 $ 1,033,297 The Company recorded its share of income from unconsolidated affiliates, including adjustments for basis differences, as follows: Year Ended December 31, 2018 2017 2016 (In thousands) Income from unconsolidated affiliates $ 147,690 $ 146,222 $ 528,287 Preopening and start-up expenses (3,321 ) — (3,168 ) Non-operating items from unconsolidated affiliates (47,827 ) (34,751 ) (53,139 ) $ 96,542 $ 111,471 $ 471,980 The following table summarizes information related to the Company’s share of income from unconsolidated affiliates: Year Ended December 31, 2018 2017 2016 (In thousands) CityCenter $ 138,383 $ 133,401 $ 445,853 Borgata (through July 31, 2016) — — 61,169 Other 9,307 12,821 21,265 $ 147,690 $ 146,222 $ 528,287 CityCenter Mandarin Oriental sale. In August 2018, CityCenter closed the sale of the Mandarin Oriental and adjacent retail parcels for approximately $214 million. During the year ended December 31, 2018, CityCenter recognized a loss on the sale of the Mandarin Oriental of $133 million and the Company recognized a $12 million gain on the sale related to the reversal of basis differences in excess of its share of the loss recorded by CityCenter, which is recorded within “Income from unconsolidated affiliates”. Crystals sale. In April 2016, CityCenter closed the sale of Crystals for approximately $1.1 billion. During the year ended December 31, 2016, CityCenter recognized a gain on the sale of Crystals of $400 million and the Company recognized a $401 million gain, which included $200 million representing its 50% share of the gain recorded by CityCenter and $201 million representing the reversal of certain basis differences. The basis differences primarily related to other-than-temporary impairment charges recorded on the Company’s investment in CityCenter that were allocated to Crystals’ building assets. CityCenter distributions. In September 2018, CityCenter paid a $225 million dividend, of which the Company received its 50% share, or approximately $113 million and in May 2018, CityCenter paid a $400 million dividend, of which the Company received its 50% share, or $200 million. In April 2017, CityCenter paid a $600 million dividend, consisting of a $350 million dividend using proceeds from the upsized senior credit facilities and a $250 million dividend from cash on hand, of which $78 million was part of its annual dividend policy. MGM Resorts received its 50% share, or $300 million. In March 2016, a $90 million distribution was declared in accordance with CityCenter’s annual distribution policy and in April 2016, CityCenter declared a $990 million special distribution in connection with the Crystals sale. The Company’s $540 million share of such distributions was received in May 2016. Grand Victoria Grand Victoria sale. In August 2018, the Company, along with its joint venture partner, completed the sale of Grand Victoria, of which a subsidiary of the Company owned a 50% interest, for $328 million in cash. The Company recorded a gain of $45 million related to the sale, which is recorded within “Property transactions, net”. Borgata The Company acquired Boyd Gaming’s ownership interest in Borgata on August 1, 2016, and therefore began to consolidate Borgata beginning on that date. Prior thereto, the Company’s investment in Borgata was accounted for under the equity method. Las Vegas Arena Company, LLC Athena Arena transaction. On September 1, 2016, the Company and AEG each sold a 7.5% membership interest in the Las Vegas Arena Company, LLC to Athena Arena, LLC. As a result of this transaction, the Company received $15 million in proceeds and recorded a $3 million gain in “Property transactions, net” . Unconsolidated Affiliate Financial Information - CityCenter Summarized balance sheet information is as follows: December 31, 2018 2017 (In thousands) Current assets $ 363,755 $ 708,910 Property and other assets, net and other long-term assets 6,167,853 6,280,474 Current liabilities 347,710 348,232 Long-term debt and other long-term obligations 1,763,290 1,557,633 Summarized results of operations are as follows: Year Ended December 31, 2018 2017 2016 (In thousands) Net revenues $ 1,277,745 $ 1,227,733 $ 1,160,606 Operating income 185,368 200,109 13,979 Income (loss) from continuing operations 97,091 137,226 (50,376 ) Net income (loss) (37,911 ) 131,683 349,716 Basis Differences The Company’s investments in unconsolidated affiliates do not equal the Company’s share of venture-level equity due to various basis differences. Basis differences related to depreciable assets are being amortized based on the useful lives of the related assets and liabilities, and basis differences related to non–depreciable assets, such as land and indefinite-lived intangible assets, are not being amortized. Differences between the Company’s share of venture-level equity and investment balances are as follows: December 31, 2018 2017 (In thousands) Venture-level equity attributable to the Company $ 2,347,103 $ 2,659,780 Adjustment to CityCenter equity upon contribution of net assets by MGM Resorts International (1) (514,592 ) (532,501 ) CityCenter capitalized interest (2) 186,830 206,065 CityCenter completion guarantee (3) 274,685 322,703 CityCenter deferred gain (4) (212,276 ) (219,561 ) CityCenter capitalized interest on sponsor notes (5) (36,500 ) (40,258 ) Other-than-temporary impairments of CityCenter investment (6) (1,352,118 ) (1,504,161 ) Acquisition fair value adjustments net of other-than-temporary impairments of Grand Victoria investment (7) — 99,619 Other adjustments 39,735 41,611 $ 732,867 $ 1,033,297 (1) Primarily relates to land and fixed assets. (2) Relates to interest capitalized on the Company’s investment balance during development and construction stages. (3) Created by contributions to CityCenter under the completion guarantee recognized as equity contributions by CityCenter split between the members. (4) Relates to a deferred gain on assets contributed to CityCenter upon formation of CityCenter. (5) Relates to interest on the sponsor notes capitalized by CityCenter during development. Such sponsor notes were converted to equity in 2013. (6) The impairment of the Company’s CityCenter investment includes $352 million and $379 million of impairments allocated to land as of December 31, 2018 and December 31, 2017, respectively. (7) Relates to indefinite-lived gaming license rights for Grand Victoria and other-than-temporary impairments of the Company’s investment in Grand Victoria.

Goodwill and Other Intangible A

Goodwill and Other Intangible Assets	12 Months Ended
	Dec. 31, 2018
Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill and Other Intangible Assets	NOTE 7 — GOODWILL AND OTHER INTANGIBLE ASSETS Goodwill and other intangible assets consisted of the following: December 31, 2018 2017 Goodwill: (In thousands) Las Vegas Strip Resorts $ 70,975 $ 70,975 Regional Operations 386,892 386,892 Corporate and other 17,915 — MGM China 1,345,610 1,348,664 $ 1,821,392 $ 1,806,531 Indefinite-lived intangible assets: Detroit development rights $ 98,098 $ 98,098 Northfield racing and gaming licenses 228,000 — Trademarks, license rights and other 312,022 312,022 Total indefinite-lived intangible assets 638,120 410,120 Finite-lived intangible assets: MGM Grand Paradise gaming subconcession 4,468,766 4,478,911 Less: Accumulated amortization (1,342,561 ) (1,180,908 ) 3,126,205 3,298,003 MGM Macau land concession 83,885 84,076 Less: Accumulated amortization (32,035 ) (27,870 ) 51,850 56,206 MGM China customer lists 127,679 127,969 Borgata customer list 22,000 22,000 Northfield customer list 25,000 — Less: Accumulated amortization (151,465 ) (145,569 ) 23,214 4,400 Finite-lived gaming licenses and other intangible assets 136,127 136,127 Less: Accumulated amortization (31,053 ) (26,896 ) 105,074 109,231 Total finite-lived intangible assets, net 3,306,343 3,467,840 Total other intangible assets, net $ 3,944,463 $ 3,877,960 Goodwill . A summary of changes in the Company’s goodwill by reportable segment is as follows for 2018 and 2017: 2018 Balance at January 1 Acquisitions Currency exchange Balance at December 31 (In thousands) Goodwill, net by segment: Las Vegas Strip Resorts $ 70,975 $ — $ — $ 70,975 Regional Operations 386,892 — — 386,892 MGM China 1,348,664 — (3,054 ) 1,345,610 Corporate and other — 17,915 — 17,915 $ 1,806,531 $ 17,915 $ (3,054 ) $ 1,821,392 2017 Balance at January 1 Acquisitions Currency exchange Balance at December 31 (In thousands) Goodwill, net by segment: Las Vegas Strip Resorts $ 70,975 $ — $ — $ 70,975 Regional Operations 386,892 — — 386,892 MGM China 1,359,252 — (10,588 ) 1,348,664 $ 1,817,119 $ — $ (10,588 ) $ 1,806,531 Goodwill was recognized by MGP, which is included within Corporate and other, in connection with its acquisition of Northfield in 2018. See Note 4 for discussion of the Northfield Acquisition . Indefinite-lived intangible assets. The Company’s indefinite-lived intangible assets consist primarily of development rights in Detroit, gaming and racing licenses for Northfield, and trademarks and trade names, of which $210 million is related to the Mandalay Resort Group and $83 million is related to Borgata. MGM Grand Paradise gaming subconcession. Pursuant to the agreement dated June 19, 2004 between MGM Grand Paradise and Sociedade de Jogos de Macau, S.A., a gaming subconcession was acquired by MGM Grand Paradise for the right to operate casino games of chance and other casino games for a period of 15 years commencing on April 20, 2005. The Company cannot provide any assurance that the gaming subconcession will be extended beyond the original terms of the agreement; however, management believes that the gaming subconcession will be extended, given that the Cotai land concession agreement with the government extends significantly beyond the gaming subconcession. As such, as of December 31, 2018, the Company amortizes the gaming subconcession intangible asset on a straight-line basis over the initial term of the Cotai land concession, ending in January 2038. MGM Macau land concession. MGM Grand Paradise entered into a contract with the Macau government to use the land under MGM Macau commencing from April 6, 2006. The land use right has an initial term through April 6, 2031, subject to renewal for additional periods. As of December 31, 2018, the land concession intangible asset is amortized on a straight-line basis over the remaining initial contractual term. Customer lists. The Company recognized an intangible asset related to Northfield’s customer list, which is amortized on a straight-line basis over its estimated useful life of seven years. The Company also recognized intangible assets related to MGM China and Borgata’s customer lists, which became fully amortized in 2016 and 2018, respectively. Finite-lived gaming licenses. The Company was granted a license to operate a casino in Maryland. The consideration paid to the State of Maryland for the license fee of $22 million is considered a finite-lived intangible asset that is amortized on a straight-line basis over a period of its initial term of 15 years, beginning in December 2016, when the casino started operations. The Company was granted a license to operate a casino in Massachusetts. The consideration paid to the State of Massachusetts for the license fee of $85 million is considered a finite-lived intangible asset that will be amortized over a period of 15 years, beginning in August 2018, when the casino started operations. Other. The Company’s other finite–lived intangible assets consist primarily of lease acquisition costs amortized over the life of the related leases, and certain license rights amortized over their contractual life. Total amortization expense related to intangible assets was $176 million, $173 million and $180 million for 2018, 2017, and 2016, respectively. As of December 31, 2018, estimated future amortization is as follows: Years ending December 31, (In thousands) 2019 $ 179,944 2020 179,944 2021 179,944 2022 179,944 2023 179,761 Thereafter 2,406,806 $ 3,306,343

Other Accrued Liabilities

Other Accrued Liabilities	12 Months Ended
	Dec. 31, 2018
Other Liabilities Disclosure [Abstract]
Other Accrued Liabilities	NOTE 8 — OTHER ACCRUED LIABILITIES Other accrued liabilities consisted of the following: 2018 2017 (In thousands) Contract and contract-related liabilities: Outstanding chip liability $ 323,811 $ 597,753 Loyalty program obligations 113,293 91,119 Casino front money 342,941 303,950 Advance deposits and ticket sales 221,003 149,698 Unpaid wagers and other 103,341 85,978 Other accrued liabilities: Payroll and related 518,892 483,101 Taxes, other than income taxes 235,160 170,639 MGP Dividend 31,732 29,777 Other 260,881 202,620 $ 2,151,054 $ 2,114,635

Long-Term Debt

Long-Term Debt	12 Months Ended
	Dec. 31, 2018
Debt Disclosure [Abstract]
Long-Term Debt	NOTE 9 — LONG-TERM DEBT Long-term debt consisted of the following: December 31, 2018 2017 (In thousands) Senior credit facility $ 750,000 $ 372,500 Operating Partnership senior credit facility 2,819,125 2,091,375 MGM China credit facility 2,433,562 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 15,253,239 13,018,276 Less: Premiums, discounts, and unamortized debt issuance costs, net (121,823 ) (109,182 ) 15,131,416 12,909,094 Less: Current portion (43,411 ) (158,042 ) $ 15,088,005 $ 12,751,052 Debt due within one year of the December 31, 2018 and 2017 balance sheet 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 $43 million and $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 as of December 31, 2018 and 2017, respectively. Interest expense, net consisted of the following: Year Ended December 31, 2018 2017 2016 (In thousands) Total interest incurred $ 821,229 $ 779,855 $ 814,731 Interest capitalized (51,716 ) (111,110 ) (119,958 ) $ 769,513 $ 668,745 $ 694,773 Senior credit facility. At December 31, 2018, the Company’s senior credit facility consisted of a $750 million term loan A facility and a $1.5 billion revolving facility. In December 2018, the Company amended its senior credit facility to provide for a $250 million increase of the revolving facility to $1.5 billion and a $520 million increase on the term loan A facility. Additionally, the revolving and term loan A facilities were repriced to LIBOR plus 1.50% to 2.25% determined by reference to a total net leverage ratio pricing grid and the final maturity date of the facilities was extended to December 2023. The term loan A facility’s repayment will start on the last business day of each calendar quarter beginning March 31, 2020, for an amount equal to 1.25% of the aggregate principal amount of the term loan A facility outstanding as of the amendment effective date, with the remaining balance due in December 2023. The Company permanently repaid $9 million of the term loan A facility for the year ended December 31, 2018 in accordance with the scheduled amortization. At December 31, 2018, the interest rate on the term loan A facility was 4.77%. At December 31, 2018, no amounts were drawn on the revolving credit facility. The senior credit facility contains representations and warranties, customary events of default, and positive, negative and financial covenants, including that the Company maintain compliance with a maximum total net leverage ratio, a maximum first lien net leverage ratio and a minimum interest coverage ratio. Such financial covenants will become effective beginning in January 2019. The senior credit facility is secured by (i) a mortgage on the real properties comprising the MGM Grand Las Vegas and the Bellagio, (ii) a pledge of substantially all existing and future personal property of the subsidiaries of the Company that own the MGM Grand Las Vegas and the Bellagio; and (iii) a pledge of the equity or limited liability company interests of the entities that own MGM Grand Las Vegas and the Bellagio. Mandatory prepayments of the credit facilities will be required upon the occurrence of certain events, including sales of certain assets, casualty events and the incurrence of certain additional indebtedness, subject to certain exceptions and reinvestment rights. Operating Partnership senior credit facility. At December 31, 2018, the Operating Partnership’s senior secured 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. In March 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, which became effective in August 2018. In June 2018, the Operating Partnership amended its credit agreement to provide for a $750 million increase of the revolving facility to $1.35 billion, a $200 million increase on the term loan A facility, and extensions of the maturities 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. Prior to the amendment, the term loan A facility was subject to amortization in equal quarterly installments of 2.5% of the initial aggregate principal amount to be payable each year. The Operating Partnership permanently repaid $4 million of the term loan A facility for the year ended December 31, 2018. The term loan B facility is subject to equal quarterly installments of 1.0% of the initial aggregate principal amount to be payable each year. The Operating Partnership permanently repaid $19 million of the term loan B facility for the year ended December 31, 2018, in accordance with the scheduled amortization. At December 31, 2018, $550 million was drawn on the revolving credit facility. At December 31, 2018, the interest rates on the term loan A facility and the term loan B facility were both 4.52%, and the interest rate on the revolving credit facility was 4.43%. The Operating Partnership credit facility contains customary representations and warranties, events of default and positive and negative covenants. The revolving credit facility and term loan A facility also require the Operating Partnership maintain compliance with a maximum senior secured net debt to adjusted total assets ratio, maximum total net debt to adjusted assets ratio and a minimum interest coverage ratio. The Operating Partnership was in compliance with its credit facility covenants at December 31, 2018. The Operating Partnership senior credit facility is guaranteed by each of the Operating Partnership’s existing and subsequently acquired direct and indirect wholly owned material domestic restricted subsidiaries, and secured by a first priority lien security interest on substantially all of the Operating Partnership’s and such restricted subsidiaries’ material assets, including mortgages on its real estate, excluding the real estate assets of MGM National Harbor and Empire City, subject to customary exclusions. 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 December 31, 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. In December 2018, the Operating Partnership entered into additional interest rate swaps that have a notional amount of $400 million on which it will pay a fixed rate of 2.735% with the variable rate received resetting monthly to the one-month LIBOR with a floor of 0%. Such interest rate swaps will become effective on December 31, 2019. As of December 31, 2018 and 2017, the derivative financial instruments have been designated as cash flow hedges and qualify for hedge accounting. MGM China credit facility. At December 31, 2018, the MGM China credit facility consisted of $1.8 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. In June 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 remained 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. MGM China permanently repaid $507 million of term loans for the year ended December 31, 2018 in accordance with the scheduled amortization. At December 31, 2018, $641 million was drawn on the revolving credit facility. At December 31, 2018, the interest rate on the term loans was 4.74% and the interest rate on the revolving credit facility was 4.72%. The MGM China credit facility contains customary representations and warranties, events of default, and positive, negative and financial covenants, including that MGM China maintains compliance with a maximum leverage ratio and a minimum interest coverage ratio . MGM China was in compliance with its credit facility covenants at December 31, 2018. Senior Notes. In February 2019, the Company repaid its $850 million 8.625% notes due 2019. In June 2018, the Company issued $1.0 billion in aggregate principal amount of 5.750% senior notes due 2025. In July 2017, the Company redeemed for cash all $475 million principal amount of its outstanding 11.375% senior notes due 2018. The Company incurred a $30 million loss on the early retirement of such notes recorded in “Other, net” in the consolidated statements of operations. Operating Partnership senior notes. In September 2017, the Operating Partnership issued $350 million in aggregate principal amount of 4.50% senior notes due 2028. In January 2019, the Operating Partnership issued $750 million in aggregate principal amount of 5.75% senior notes due 2027. Each series of the Operating Partnership's senior notes are fully and unconditionally guaranteed, jointly and severally, on a senior basis by all of the Operating Partnership’s subsidiaries that guarantee the Operating Partnership’s credit facilities, other than MGP Finance Co-Issuer, Inc., which is a co-issuer of the senior notes. The Operating Partnership may redeem all or part of the senior notes at a redemption price equal to 100% of the principal amount of the senior notes plus, to the extent the Operating Partnership is redeeming senior notes prior to the date that is three months prior to their maturity date, an applicable make whole premium, plus, in each case, accrued and unpaid interest. The indentures governing the senior notes contain customary covenants and events of default. These covenants are subject to a number of important exceptions and qualifications set forth in the applicable indentures governing the senior notes, including, with respect to the restricted payments covenants, the ability to make unlimited restricted payments to maintain the REIT status of MGP. Maturities of long-term debt. The maturities of the principal amount of the Company’s long-term debt as of December 31, 2018 are as follows: Years ending December 31, (In thousands) 2019 $ 1,272,734 2020 1,966,109 2021 1,716,109 2022 2,306,237 2023 2,884,875 Thereafter 5,107,175 $ 15,253,239 Fair value of long-term debt. The estimated fair value of the Company’s long-term debt was $15.1 billion and $13.6 billion at December 31, 2018 and 2017, respectively. Fair value was estimated using quoted market prices for the Company’s senior notes and senior credit facilities.

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Income Taxes	NOTE 10 — INCOME TAXES 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. Income (loss) before income taxes for domestic and foreign operations consisted of the following: Year Ended December 31, 2018 2017 2016 (In thousands) Domestic operations $ 660,832 $ 747,090 $ 984,095 Foreign operations (26,826 ) 213,700 273,494 $ 634,006 $ 960,790 $ 1,257,589 The benefit (provision) for income taxes attributable to income (loss) before income taxes is as follows: Year Ended December 31, 2018 2017 2016 Federal: (In thousands) Current $ 11,991 $ (120,980 ) $ (97,502 ) Deferred (excluding separate components) (143,468 ) 204,713 (124,625 ) Deferred – — 987,942 — Deferred – (19,753 ) 101,443 222,688 Other noncurrent 576 1,356 3,608 Benefit (provision) for federal income taxes (150,654 ) 1,174,474 4,169 State: Current (12,564 ) (6,798 ) 4,069 Deferred (excluding separate components) (12,731 ) (25,233 ) 2,313 Deferred – (29,490 ) 44,242 (16,024 ) Deferred – 41,068 (40,078 ) 23,058 Other noncurrent (1,334 ) (3,876 ) (2,901 ) Benefit (provision) for state income taxes (15,051 ) (31,743 ) 10,515 Foreign: Current (2,037 ) (470 ) (2,015 ) Deferred (excluding separate components) 63,827 (40,653 ) (34,425 ) Deferred – 30,574 4,688 2,988 Deferred – 23,229 21,098 (2,975 ) Benefit (provision) for foreign income taxes 115,593 (15,337 ) (36,427 ) $ (50,112 ) $ 1,127,394 $ (21,743 ) A reconciliation of the federal income tax statutory rate and the Company’s effective tax rate is as follows: Year Ended December 31, 2018 2017 2016 Federal income tax statutory rate 21.0 % 35.0 % 35.0 % Change in enacted rates — (102.7 ) — Non-controlling interest (2.4 ) (1.5 ) (0.9 ) Foreign jurisdiction income/losses taxed at other than U.S. statutory rate (9.5 ) (9.2 ) (3.8 ) Repatriation of foreign earnings — 35.4 5.2 Foreign tax credit — (70.3 ) (10.6 ) Federal valuation allowance 3.1 (10.6 ) (17.7 ) Macau dividend tax (6.4 ) 4.2 — State taxes, net 1.9 2.4 — General business credits (2.9 ) (1.0 ) (0.7 ) Stock-based compensation (1.2 ) (2.1 ) — Gain on Borgata transaction — — (5.4 ) Non-deductible employee dining facility costs 1.4 — — Permanent and other items 2.9 3.1 0.6 7.9 % (117.3 )% 1.7 % The tax-effected components of the Company’s net deferred tax liability are as follows: December 31, 2018 2017 Deferred tax assets – federal and state: (In thousands) Bad debt reserve $ 23,497 $ 25,432 Deferred compensation 5,950 5,232 Net operating loss carryforward 23,406 46,702 Accruals, reserves and other 88,139 94,904 Investments in unconsolidated affiliates 83,130 84,188 Stock-based compensation 20,581 24,390 Tax credits 2,926,996 3,045,138 3,171,699 3,325,986 Less: Valuation allowance (2,449,582 ) (2,462,272 ) 722,117 863,714 Deferred tax assets – foreign: Bad debt reserve 1,372 821 Net operating loss carryforward 107,308 76,909 Accruals, reserves and other 18,603 — Property and equipment 998 — Stock-based compensation 5,409 4,423 133,690 82,153 Less: Valuation allowance (28,121 ) (51,466 ) 105,569 30,687 Total deferred tax assets $ 827,686 $ 894,401 Deferred tax liabilities – federal and state: Property and equipment $ (1,729,786 ) $ (1,670,704 ) Long-term debt (3,141 ) (48,809 ) Intangibles (90,758 ) (79,167 ) (1,823,685 ) (1,798,680 ) Deferred tax liabilities – foreign: Accruals, reserves and other — (26,657 ) Property and equipment — (16,277 ) Intangibles (346,539 ) (348,162 ) (346,539 ) (391,096 ) Total deferred tax liability $ (2,170,224 ) $ (2,189,776 ) Net deferred tax liability $ (1,342,538 ) $ (1,295,375 ) On December 22, 2017, the U.S. government enacted comprehensive tax legislation commonly referred to as the U.S. Tax Cuts and Jobs Act (the “Tax Act”). The Tax Act makes broad and complex changes to the U.S. tax code that are generally applicable to tax years beginning after December 31, 2017, including, but not limited to, (1) reducing the U.S. federal corporate tax rate from 35 percent to 21 percent; (2) requiring companies to pay a one-time transition tax on certain unrepatriated earnings of foreign subsidiaries; (3) generally eliminating U.S. federal income taxes on dividends from foreign subsidiaries; (4) adding a new provision designed to tax global intangible low-taxed income (GILTI), which allows for the possibility of using foreign tax credits (FTCs) and a deduction of up to 50 percent to offset the income tax liability (subject to some limitations); (5) creating a new limitation on deductible interest expense; (6) imposing additional limitations on the deductibility of executive compensation and certain employee fringe benefits; and (7) increasing bonus depreciation to allow for full expensing of qualified property. The SEC staff issued Staff Accounting Bulletin No. 118 (SAB 118), which provides guidance on accounting for the tax effects of the Tax Act. SAB 118 provides a measurement period that should not extend beyond one year from the Tax Act enactment date for companies to complete the accounting under ASC 740. In accordance with SAB 118, a company must reflect the income tax effects of those aspects of the Tax Act for which the accounting under ASC 740 is complete. To the extent that a company’s accounting for certain income tax effects of the Tax Act is incomplete but it is able to determine a reasonable estimate, it must record a provisional estimate in the financial statements. If a company cannot determine a provisional estimate to be included in the financial statements, it should continue to apply ASC 740 on the basis of the provisions of the tax laws that were in effect immediately before the enactment of the Tax Act. The Company’s accounting for certain elements of the Tax Act was incomplete as of December 31, 2017. However, the Company was able to make reasonable estimates of certain effects and, therefore, recorded a provisional discrete non-cash net tax benefit of $1.4 billion in the period ended December 31, 2017, consisting of a benefit of $988 million for the corporate rate reduction and a benefit of $438 million from its provisional re-assessment of the Tax Act’s impact on the valuation allowance on its foreign tax credit (“FTC”) carryovers. The Company did not provide tax expense for the transition tax on its unrepatriated earnings, which totaled $669 million without regard to actual 2017 distributions of $62 million, because such earnings were fully offset by FTCs. The Company’s accounting for the impact of the Tax Act is now complete. The Company recorded non-cash income tax expense totaling $20 million during the measurement period in 2018, as it adjusted its valuation allowance on its FTC carryovers to account for guidance clarifying the treatment of FTCs resulting from GILTI and other provisions impacting FTC utilization. These measurement period adjustments increased the Company’s effective tax rate by 3% during the year ended December 31, 2018. In addition, the Company finalized its accounting for the tax treatment of indirect costs of providing certain employee fringe benefits subject to limitation under the Tax Act. This measurement period adjustment had an immaterial impact on the effective tax rate for the year ended December 31, 2018. The Company has made an accounting policy decision to treat taxes due, if any, on future inclusions in U.S. taxable income under the GILTI provisions as a current period expense when incurred. Accordingly, the Company has not provided a deferred tax liability for any GILTI taxes that may result in future periods. The Company has recorded a valuation allowance of $2.4 billion on its FTC carryover of $2.9 billion as of December 31, 2018, resulting in an FTC net deferred tax asset of $481 million. The FTCs are attributable to the Macau Special Gaming Tax, which is 35% of gross gaming revenue in Macau. Because MGM Grand Paradise is presently exempt from the Macau 12% complementary tax on gaming profits, the Company believes that payment of the Macau Special Gaming Tax qualifies as a tax paid in lieu of an income tax that is creditable against U.S. taxes. While the Company generally does not expect to generate new FTC carryovers under the Tax Act, it will be able to utilize its existing FTC carryovers to the extent that it has active foreign source income during the 10-year FTC carryforward period. Such foreign source income includes the recapture, to the extent of U.S. taxable income, of overall domestic losses that totaled $1.7 billion at December 31, 2018. The Company relies on future U.S. source operating income in assessing utilization of the overall domestic losses and, by extension, future FTC realization during the 10-year FTC carryover period. The FTC carryovers will expire if not utilized as follows: $640 million in 2022; $976 million in 2023; $782 million in 2024; $332 million in 2025; and $196 million in 2027. The Company’s assessment of the realization of its FTC deferred tax asset is based on available evidence, including assumptions concerning future U.S. operating profits and our interpretations of the Tax Act based upon guidance issued to date. As a result, significant judgment is required in assessing the possible need for a valuation allowance and changes to such assumptions could result in a material change in the valuation allowance with a corresponding impact on the provision for income taxes in the period including such change. Income generated from gaming operations of MGM Grand Paradise is exempted from Macau’s 12% complementary tax, pursuant to approval from the Macau government. Absent this exemption, “Net income attributable to MGM Resorts International” would have decreased by $43 million and $38 million in 2018 and 2017, respectively, and diluted earnings per share would have decreased by $0.08 and $0.07 in 2018 and 2017, respectively. MGM Grand Paradise has been granted an exemption from the Macau 12% complementary tax on gaming profits through March 31, 2020, which is the end of the term of its current gaming sub-concession. The Company has assumed that MGM Grand Paradise will pay the Macau 12% complementary tax on gaming profits for all periods beyond March 31, 2020 and has factored that assumption into the measurement of Macau deferred tax assets and liabilities. Non-gaming operations remain subject to the Macau complementary tax. MGM Grand Paradise had at December 31, 2018 a complementary tax net operating loss carryforward of $866 million resulting from non-gaming operations that will expire if not utilized against non-gaming income in years 2019 through 2021. MGM Grand Paradise’s exemption from the 12% complementary tax on gaming profits does not apply to dividend distributions of such profits to MGM China. However, 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. Since the earnings for 2017 were not covered by an annual fee arrangement as of December 31, 2017, the Company provided deferred taxes on such earnings, which totaled $41 million as of December 31, 2017. 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 for the year ended December 31, 2018, partially offset by the 2017 annual payment amount. The Company has net operating losses in certain of the states in which it operates that total $355 million as of December 31, 2018, which equates to deferred tax assets of $23 million after federal tax effect and before valuation allowance. These net operating loss carryforwards will expire if not utilized by 2029 through 2038. The Company has provided a valuation allowance of $3 million on certain of its state deferred tax assets, including the net operating losses described above. In addition, there is a valuation allowance of $26 million on certain Macau deferred tax assets, and a valuation allowance of $2 million on Hong Kong net operating losses because the Company believes these assets do not meet the “more likely than not” criteria for recognition. A reconciliation of the beginning and ending amounts of gross unrecognized tax benefits is as follows: Year Ended December 31, 2018 2017 2016 (In thousands) Gross unrecognized tax benefits at January 1 $ 18,588 $ 14,026 $ 13,724 Gross increases - prior period tax positions 5,345 — — Gross decreases - prior period tax positions (957 ) (2,280 ) (3,375 ) Gross increases - current period tax positions 1,488 6,842 3,677 Gross unrecognized tax benefits at December 31 $ 24,464 $ 18,588 $ 14,026 The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate was $13 million and $11 The Company recognizes interest and penalties related to unrecognized tax benefits in income tax expense, which were not material as of December 31, 2018, 2017 or 2016. The Company does not anticipate that the total amounts of unrecognized tax benefits at December 31, 2018 will change materially within the next twelve months. The Company files income tax returns in the U.S. federal jurisdiction, various state and local jurisdictions, and foreign jurisdictions, although the income taxes paid in foreign jurisdictions are not material. As of December 31, 2018, the IRS can no longer assess tax with respect to years ended prior to 2014; however the IRS may adjust NOLs generated in such years that were utilized in 2014. The Company’s 2014 U.S. consolidated federal income tax return is currently under examination by the IRS. The IRS examination of the 2014 U.S. income tax return of CityCenter Holdings, LLC, an unconsolidated affiliate treated as a partnership for income tax purposes was completed during 2018 and the Company’s share of the resultant adjustments were not material in the aggregate. As of December 31, 2018, other than adjustments resulting from the federal income tax audits discussed above, the various state and local tax jurisdictions in which the Company files tax returns can no longer assess tax with respect to years ended prior to 2014. However, such jurisdictions may adjust NOLs generated in such years that are utilized in subsequent years. The Company’s state income tax returns filed in Mississippi and New Jersey for the tax years 2014 through 2016 and Michigan for the tax years 2014 through 2017 are currently under examination. No other state or local income tax returns are currently under examination.

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2018
Commitments And Contingencies Disclosure [Abstract]
Commitments and Contingencies	NOTE 11 – COMMITMENTS AND CONTINGENCIES Leases. The Company leases real estate and various equipment under operating and, to a lesser extent, capital lease arrangements. Certain real estate leases provide for escalation of rent based upon a specified price index and/or based upon periodic appraisals. At December 31, 2018, the Company was obligated under non-cancellable operating leases to make future minimum lease payments as follows: Years ending December 31, (In thousands) 2019 $ 106,643 2020 83,150 2021 62,437 2022 47,036 2023 45,157 Thereafter 1,357,611 Total minimum lease payments $ 1,702,034 The table above excludes the Company’s future lease obligations to a subsidiary of the Operating Partnership pursuant to the master lease agreement discussed in Note 17 as these lease obligations are eliminated in consolidation. Rental expense for operating leases was $89 million, $92 million and $80 million for 2018, 2017 and 2016, respectively, which included short-term rentals charged to rent expense. The Company’s operating leases are materially comprised of ground leases for various properties. The Company accounts for the Cotai land concession contract as an operating lease for which the required upfront payments are amortized over the initial 25-year contract term ending in January 2038. Additionally, the Company has a series of ground leases for a total of approximately 11 acres of land on which the Borgata employee parking garage, public space expansion, rooms expansion, and modified surface parking lot reside. The Company recorded an unfavorable lease liability for the excess contractual lease obligations over the market value of the leases, which will be amortized on a straight-line basis over the term of the lease contracts through December 2070. The remaining balance of the unfavorable lease liability was $46 million and $47 million as of December 31, 2018 and 2017, respectively. The ground lease is accounted for as an operating lease Also, the Company has a ground lease agreement for an approximate 23-acre parcel of land at MGM National Harbor. The ground lease has an initial term of 25 years and the right to extend for up to 13 additional six-year periods with the first 7 of those additional periods considered to be reasonably assured. The Company therefore amortizes the lease on a straight-line basis over a 67-year term to December 2082. 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, 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 also received letters from attorneys purporting to represent other persons with claims related to the October 1, 2017 shooting. 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 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 also initiated declaratory relief actions in federal courts in various districts against individuals who had sued or stated an intent to sue. Additional lawsuits related to this incident may be filed in the future. In February of 2019, the Company and plaintiffs’ counsel commenced mediation of these matters. The above-described litigation currently is stayed pending mediation. The Company is currently unable to reliably predict the future 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. The insurance carriers have not expressed a reservation of rights or coverage defense that affects the Company’s evaluation of potential losses in connection with these claims. 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. 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 . Borgata property tax reimbursement agreement. On February 15, 2017, Borgata, the Department of Community Affairs of the State of New Jersey and Atlantic City entered into an agreement wherein Borgata was to be reimbursed $72 million as settlement for property tax refunds in satisfaction of New Jersey Tax Court and Superior Court judgments totaling approximately $106 million, plus interest for the 2009-2012 tax years and the settlement of pending tax appeals for the tax years 2013-2015. Those pending tax appeals could potentially have resulted in Borgata being awarded additional refunds due of approximately $65 million. In June 2017, Atlantic City and the State of New Jersey issued bonds and used the proceeds to pay the $72 million settlement in full. The Company recorded the amounts received pursuant to the reimbursement agreement as an offset to general and administrative expenses in the consolidated statements of operations. As required by the purchase and sale agreement to acquire Borgata in August 2016, the Company paid Boyd Gaming half of the settlement amount received by the Company, net of fees and expenses. Amounts paid to Boyd Gaming were recorded in general and administrative expenses in the consolidated statements of operations. NV Energy. In July 2016, the Company filed its notice to exit the fully bundled sales system of NV Energy and now purchases energy, capacity, and/or ancillary services from a provider other than NV Energy. The Company paid an upfront impact payment of $83 million, including $14 million related to CityCenter, in September 2016. Under the terms of the exit agreement, the Company and CityCenter were required to make ongoing payments to NV Energy for non-bypassable rate charges, which primarily relate to each entity’s share of NV Energy’s portfolio of renewable energy contracts which extended through 2040 and each entity’s share of the costs of decommissioning and remediation of coal-fired power plants in Nevada. The Company’s initial estimate of its obligation related to non-bypassable charges was $71 million. The expense recognized related to the upfront payment and the initial accrual for the liability associated with the non-bypassable charges was recorded within “NV Energy exit expense” in the Company’s consolidated statements of operations for the year ended December 31, 2016. Subsequent accretion of the liability and changes in estimates are recognized within general and administrative expenses in the consolidated statement of operations. In the second quarter of 2017, the terms of the ongoing impact fee obligations were modified. Such modifications included a credit to be applied against future non-bypassable rate charges and substantially shortened the period over which the Company and CityCenter are responsible for such charges, with an end date in 2022. As such, the Company recognized a reduction in its liability for future charges of $41 million with a corresponding credit to “NV Energy exit expense”. Additionally, CityCenter recorded an $8 million reduction in liability and credit to expense. As of December 31, 2018 and 2017, the Company has recorded an estimate of its remaining liability on a discounted basis of $8 million and $10 million, respectively, in “Other accrued liabilities” and $15 million and $23 million, respectively, in “Other long-term obligations.” Grand Paradise Macau deferred cash payment. On September 1, 2016, the Company purchased 188.1 million common shares of its MGM China subsidiary from Grand Paradise Macau (“GPM”), an entity controlled by Ms. Ho, Pansy Catilina Chiu King (“Ms. Ho”). As part of the consideration for the purchase, the Company agreed to pay GPM or its nominee a deferred cash payment of $50 million, which will be paid in amounts equal to the ordinary dividends received on such shares, with a final lump sum payment due on the fifth anniversary of the closing date of the transaction if any portion of the deferred cash payment remains unpaid at that time. In 2018 and 2017, the total amount paid under the deferred cash payment arrangement was $11 million and $7 million, respectively. Such amount was paid to Expert Angles Limited, an entity controlled by Ms. Ho through November 2018 and subsequently controlled by an immediate family member of Ms. Ho. As of December 31, 2018, the Company recorded a remaining liability on a discounted basis of $36 million in “Other long-term obligations.” 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 December 31, 2018, $12 million in letters of credit were outstanding under the Company’s senior credit facility. No letters of credit were outstanding under the Operating Partnership senior credit facility or MGM China’s credit facility at December 31, 2018. The amount of available borrowings under each of the credit facilities is reduced by any outstanding letters of credit.

Stockholders' Equity

Stockholders' Equity	12 Months Ended
	Dec. 31, 2018
Equity [Abstract]
Stockholders' Equity	NOTE 12 — STOCKHOLDERS’ EQUITY Accumulated Other Comprehensive Income (Loss) The following is a summary of the changes in the accumulated balance of other comprehensive income (loss) attributable to MGM Resorts International: Currency Translation Adjustments Cash Flow Hedges Other Total (In thousands) Balance, January 1, 2017 $ 12,545 $ 1,434 $ 1,074 $ 15,053 Other comprehensive income (loss) before reclassifications (43,188 ) (1,221 ) 98 (44,311 ) Amounts reclassified from accumulated other comprehensive income (loss) to interest expense — 9,216 — 9,216 Other comprehensive income (loss), net of tax (43,188 ) 7,995 98 (35,095 ) Other comprehensive income (loss) attributable to noncontrolling interest 19,193 (2,761 ) — 16,432 Balance, December 31, 2017 (11,450 ) 6,668 1,172 (3,610 ) Other comprehensive income (loss) before reclassifications (13,022 ) 4,706 — (8,316 ) Amounts reclassified from accumulated other comprehensive income (loss) to interest expense — (1,130 ) — (1,130 ) Other comprehensive income (loss), net of tax (13,022 ) 3,576 — (9,446 ) Other comprehensive income (loss) attributable to noncontrolling interest 5,600 (1,100 ) — 4,500 Balance, December 31, 2018 $ (18,872 ) $ 9,144 $ 1,172 $ (8,556 ) Noncontrolling interest The following is a summary of net income attributable to MGM Resorts International and transfers to noncontrolling interest: For the Years Ended December 31, 2018 2017 (In thousands) Net income attributable to MGM Resorts International $ 466,772 $ 1,952,052 Transfers from/(to) to noncontrolling interest: MGP Class A share issuance — 35,138 MGM National Harbor transaction — (12,497 ) Other (5,667 ) (2,889 ) Net transfers from/(to) noncontrolling interest (5,667 ) 19,752 Change from net income attributable to MGM Resorts International and transfers to noncontrolling interest $ 461,105 $ 1,971,804 Noncontrolling interest ownership transactions MGP Class A share issuance. In September 2017, MGP completed a public offering of 13.2 million of its Class A shares. In connection with the offering, the Operating Partnership issued 13.2 million Operating Partnership units to MGP. The Company has adjusted the carrying value of the noncontrolling interests as a result of MGP’s Class A share issuance to adjust for the change in noncontrolling interests ownership percentage of the Operating Partnership's net assets, with offsetting adjustments to capital in excess of par value and accumulated other comprehensive income. Subsequent to MGP’s issuance of the incremental shares, the Company indirectly owned 72.3% of partnership units in the Operating Partnership. MGM National Harbor transaction. On October 5, 2017, MGP acquired the long-term leasehold interest and real property associated with MGM National Harbor from a subsidiary of the Company in exchange for cash of $463 million, the assumption of $425 million of indebtedness, which was immediately repaid by MGP on the closing date, and the issuance of 9.8 million Operating Partnership units to a subsidiary of the Company. The Company adjusted the carrying value of noncontrolling interests to adjust for the change in noncontrolling interests ownership percentage of the Operating Partnership’s net assets, including assets and liabilities transferred, with offsetting adjustments to capital in excess of par value and accumulated other comprehensive income. Subsequent to the MGM National Harbor transaction, the Company indirectly owned 73.4% of the partnership units in the Operating Partnership. Other events. In January 2019, MGP issued 12.9 million Operating Partnership units to a subsidiary of the Company in connection with the Empire City Transaction. The Company will adjust the carrying value of noncontrolling interests to adjust for the change in noncontrolling interests ownership percentage of the Operating Partnership’s net assets, including assets and liabilities transferred, with offsetting adjustments to capital in excess of par value and accumulated other comprehensive income, as needed, within the first quarter 2019. In January 2019, MGP completed an offering of 19.6 million of its Class A shares. In connection with the offering, the Operating Partnership issued 19.6 million Operating Partnership units to MGP. The Company will adjust the carrying value of the noncontrolling interests as a result of MGP’s Class A share issuance to adjust for the change in noncontrolling interests ownership percentage of the Operating Partnership's net assets, with offsetting adjustments to capital in excess of par value and accumulated other comprehensive income, as needed, within the first quarter 2019. Stock repurchase program 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. Repurchases of common stock may also be made under a Rule 10b5-1 plan, which would permit common stock to be repurchased when the Company might otherwise be precluded from doing so under insider trading laws. 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. During the year ended December 31, 2018, the Company repurchased approximately 41 million shares at an average purchase price of $31.25 per share for an aggregate amount of $1.3 billion. Repurchased shares were retired. The remaining availability under the $2.0 billion stock repurchase program was approximately $1.4 billion as of December 31, 2018. During the year ended December 31, 2017, the Company repurchased 10 million shares at $32.75 per share for a total aggregate amount of $328 million. Repurchased shares were retired. MGM Resorts International dividends. On February 13, 2019 the Company’s Board of Directors approved a quarterly dividend of $0.13 per share that will be payable on March 15, 2019 to holders of record on March 8, 2019.

Stock-Based Compensation

Stock-Based Compensation	12 Months Ended
	Dec. 31, 2018
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Stock-Based Compensation	NOTE 13 — STOCK-BASED COMPENSATION MGM Resorts 2005 Omnibus Incentive Plan. The Company’s omnibus incentive plan, as amended (the “Omnibus Plan”), allows it to grant up to 45 million shares or share-based awards, such as stock options, stock appreciation rights (“SARs”), restricted stock units (“RSUs”), performance share units (“PSUs”) and other stock-based awards to eligible directors, officers and employees of the Company and its subsidiaries. As of December 31, 2018, the Company had an aggregate of approximately 20 million shares of common stock available for grant as share-based awards under the Omnibus Plan. Additionally, as of December 31, 2018, the Company had approximately 7 million aggregate SARs outstanding and approximately 7 million aggregate RSUs and PSUs outstanding, including deferred share units and dividend equivalent units related to RSUs and PSUs. Intrinsic value. The following table includes information related to the intrinsic value: Year ended December 31, 2018 (In thousands) Share-based awards exercised and RSUs and PSUs vested $ 97,302 Stock options and SARs outstanding 21,563 Stock options and SARs vested and expected to vest 21,547 Stock options and SARs exercisable 19,745 As of December 31, 2018, there was a total of $134 million of unamortized compensation related to stock options, SARs, RSUs, and PSUs, which is expected to be recognized over a weighted-average period of 2.1 years. MGM Growth Properties 2016 Omnibus Incentive Plan and MGM China Share Option Plan. The Company’s subsidiaries, MGP and MGM China, each adopted their own equity award plans for the issuance of share-based awards to each subsidiary’s eligible recipients. Recognition of compensation cost. Compensation cost was recognized as follows: Year Ended December 31, 2018 2017 2016 Compensation cost: (In thousands) Omnibus Plan $ 57,735 $ 49,383 $ 43,661 MGM Growth Properties Omnibus Incentive Plan 2,092 2,568 3,401 MGM China Share Option Plan 10,369 10,571 8,545 Total compensation cost 70,196 62,522 55,607 Less: Reimbursed costs and capitalized cost (1,710 ) (1,398 ) (1,350 ) Compensation cost after reimbursed costs and capitalized cost 68,486 61,124 54,257 Less: Related tax benefit (13,218 ) (18,650 ) (16,782 ) Compensation cost, net of tax benefit $ 55,268 $ 42,474 $ 37,475

Employee Benefit Plans

Employee Benefit Plans	12 Months Ended
	Dec. 31, 2018
Compensation And Retirement Disclosure [Abstract]
Employee Benefit Plans	NOTE 14 — EMPLOYEE BENEFIT PLANS Multiemployer benefit plans. The Company currently participates in multiemployer pension plans in which the risks of participating differs from single-employer plans in the following aspects: a) Assets contributed to the multiemployer plan by one employer may be used to provide benefits to employees of other participating employers; b) If a participating employer stops contributing to the plan, the unfunded obligations of the plan may be borne by the remaining participating employers; c) If an entity chooses to stop participating in some of its multiemployer plans, the entity may be required to pay those plans an amount based on the underfunded status of the plan, referred to as a withdrawal liability; and d) If the plan is terminated by withdrawal of all employers and if the value of the nonforfeitable benefits exceeds plan assets and withdrawal liability payments, employers are required by law to make up the insufficient difference. The Company’s participation in these plans is presented below. EIN/Pension Pension Protection Act Zone Status (2) FIP/RP Contributions by the Company (in thousands) (4) Surcharge Expiration Dates of Collective Bargaining Pension Fund (1) Plan Number 2017 2016 Status (3) 2018 2017 2016 Imposed Agreements Southern Nevada Culinary and Bartenders Pension Plan 88-6016617/001 Green Green No $ 47,825 $ 45,297 $ 44,001 No 5/31/2019; 5/31/2023 (5) Legacy Plan of the National Retirement Fund (NRF) (6) 13-6130178/001 Red Red Yes $ 9,794 $ 9,416 $ 3,788 Yes 2/29/2020 (1) The Company was listed in the plan's Form 5500 as providing more than 5% of the total contributions for the plan years 2017 and 2016 for the Southern Nevada Culinary and Bartenders Pension Plan and for the plan year 2016 for the NRF. At the date the financial statements were issued, Form 5500 was not available for the plan year 2018. (2) The zone status is based on information that the Company received from the plan and is certified by the plan's actuary. Plans in the red zone are generally less than 65% funded (critical status) and plans in the green zone are at least 80% funded. (3) Indicates plans for which a Financial Improvement Plan (FIP) or a Rehabilitation Plan (RP) is either pending or has been implemented. (4) There have been no significant changes that affect the comparability of contributions, other than those for the UNITE HERE Retirement Fund (“UHF”), formally known as the Legacy Plan of the National Retirement Fund (“NRF”) prior to January 1, 2018, which reflect the period from acquisition of Borgata of August 1, 2016 through December 31, 2016 within the 2016 column and a full-year of contributions within the 2018 and 2017 columns. (5) The Company is party to ten collective bargaining agreements (CBA) that require contributions with the Local Joint Executive Board of Las Vegas, which is made up of the Culinary and Bartenders Unions. The agreements between CityCenter Hotel Casino, LLC, Bellagio, Mandalay Corp., and MGM Grand Hotel, LLC are the most significant because more than half of the Company’s employee participants in this plan are covered by those four agreements. (6) In December 2017, the Pension Benefit Guaranty Corporation approved the spin-off of the UNITE HERE portion of the NRF to the plan of a newly-formed Legacy Plan of the UNITE HERE Retirement Fund. As a result of the spin-off, the pension liabilities as well as certain assets of the plan were transferred to the new Plan. The terms of the Plan are identical to the NRF. The spin-off was effective as of January 1, 2018. Multiemployer benefit plans other than pensions . Pursuant to its collective bargaining agreements referenced above, the Company also contributes to UNITE HERE Health (the “Health Fund”), which provides healthcare benefits to its active and retired members. The Company contributed $191 million, $183 million, and $187 million to the Health Fund in the years ended December 31, 2018, 2017, and 2016, respectively. Self-insurance. The Company is self-insured for most health care benefits and workers compensation for its non-union employees. The liability for self-insurance was $93 million and $87 million at December 31, 2018 and 2017, respectively, which is included in “Other accrued liabilities.”

Property Transactions, Net

Property Transactions, Net	12 Months Ended
	Dec. 31, 2018
Property Plant And Equipment [Abstract]
Property Transactions, Net	NOTE 15 — PROPERTY TRANSACTIONS, NET Property transactions, net consisted of the following: Year Ended December 31, 2018 2017 2016 (In thousands) Gain on sale of Grand Victoria $ (44,703 ) $ — $ — Other property transactions, net 53,850 50,279 17,078 $ 9,147 $ 50,279 $ 17,078 Grand Victoria investment sale. See Note 6 for additional information related to the sale of Grand Victoria investment in 2018. Other. Other property transactions, net includes miscellaneous asset disposals and demolition costs in the periods presented in the above table, including a loss of $24 million related to MGM Cotai production show costs in 2018, and a loss of $20 million and $34 million related to the rebranding of the Monte Carlo Resort and Casino to Park MGM and NoMad Las Vegas in 2018 and 2017, respectively.

Segment Information

Segment Information	12 Months Ended
	Dec. 31, 2018
Segment Reporting [Abstract]
Segment Information	NOTE 16 — 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. During the fourth quarter of 2018, the Company changed its reportable segments to Las Vegas Strip Resorts, Regional Operations and MGM China. This change of reportable segments reflects realignment within the Company stemming from the expansion of the Company’s regional operations. Las Vegas Strip Resorts. Las Vegas Strip Resorts consists of the following casino resorts: Bellagio, MGM Grand Las Vegas (including The Signature), Mandalay Bay (including Delano and Four Seasons), The Mirage, Luxor, New York-New York (including the Park), Excalibur, Park MGM (including NoMad Las Vegas) and Circus Circus Las Vegas. Regional Operations. Regional Operations consists of the following casino resorts: MGM Grand Detroit in Detroit, Michigan; Beau Rivage in Biloxi, Mississippi; Gold Strike Tunica in Tunica, Mississippi; Borgata in Atlantic City, New Jersey; MGM National Harbor in Prince George’s County, Maryland; and MGM Springfield in Springfield, Massachusetts (upon commencing operations in August 2018). MGM China. MGM China consists of MGM Macau and MGM Cotai (upon commencing operations in February 2018). The Company’s operations related to investments in unconsolidated affiliates, MGP’s Northfield casino, 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, preopening and start-up expenses, NV Energy exit expense, gain on Borgata transaction, and property transactions, net. The following tables present the Company’s segment information. As a result of the change in reportable segments described above, we have recast previously reported segment information to conform to the current presentation in the following tables: Year Ended December 31, 2018 2017 2016 (In thousands) Net Revenues Las Vegas Strip Resorts Casino $ 1,407,733 $ 1,436,830 $ 1,394,820 Rooms 1,776,029 1,778,869 1,762,850 Food and beverage 1,402,378 1,410,496 1,432,717 Entertainment, retail and other 1,130,532 1,119,928 1,074,307 5,716,672 5,746,123 5,664,694 Regional Operations Casino 2,026,925 1,834,803 1,017,857 Rooms 318,017 319,049 182,809 Food and beverage 428,934 410,143 235,383 Entertainment, retail and other 160,645 145,725 84,108 2,934,521 2,709,720 1,520,157 MGM China Casino 2,195,144 1,741,635 1,695,023 Rooms 118,527 54,824 57,367 Food and beverage 114,862 51,330 51,237 Entertainment, retail and other 21,424 10,371 8,331 2,449,957 1,858,160 1,811,958 Reportable segment net revenues 11,101,150 10,314,003 8,996,809 Corporate and other 661,946 483,476 481,460 $ 11,763,096 $ 10,797,479 $ 9,478,269 Adjusted Property EBITDA Las Vegas Strip Resorts $ 1,705,479 $ 1,780,600 $ 1,661,921 Regional Operations 759,096 731,916 399,701 MGM China 568,294 535,524 529,281 Reportable segment Adjusted Property EBITDA 3,032,869 3,048,040 2,590,903 Other operating income (expense) Corporate and other (224,800 ) (213,908 ) 203,193 NV Energy exit expense — 40,629 (139,335 ) Preopening and start-up expenses (151,392 ) (118,475 ) (140,075 ) Property transactions, net (9,147 ) (50,279 ) (17,078 ) Gain on Borgata transaction — — 430,118 Depreciation and amortization (1,178,044 ) (993,480 ) (849,527 ) Operating income 1,469,486 1,712,527 2,078,199 Non-operating income (expense) Interest expense, net of amounts capitalized (769,513 ) (668,745 ) (694,773 ) Non-operating items from unconsolidated affiliates (47,827 ) (34,751 ) (53,139 ) Other, net (18,140 ) (48,241 ) (72,698 ) (835,480 ) (751,737 ) (820,610 ) Income before income taxes 634,006 960,790 1,257,589 Benefit (provision) for income taxes (50,112 ) 1,127,394 (21,743 ) Net income 583,894 2,088,184 1,235,846 Less: Net income attributable to noncontrolling interests (117,122 ) (136,132 ) (135,438 ) Net income attributable to MGM Resorts International $ 466,772 $ 1,952,052 $ 1,100,408 December 31, 2018 2017 2016 Total assets: (In thousands) Las Vegas Strip Resorts $ 11,783,736 $ 11,648,168 $ 11,650,747 Regional Operations 5,751,826 4,780,717 4,800,714 MGM China 9,093,307 9,461,535 8,443,411 Reportable segment total assets 26,628,869 25,890,420 24,894,872 Corporate and other 3,666,586 3,339,746 3,334,724 Eliminated in consolidation (84,749 ) (70,124 ) (55,196 ) $ 30,210,706 $ 29,160,042 $ 28,174,400 December 31, 2018 2017 2016 Property and equipment, net: (In thousands) Las Vegas Strip Resorts $ 10,605,454 $ 10,568,296 $ 10,568,317 Regional Operations 4,503,104 3,752,528 3,785,654 MGM China 3,818,460 3,827,391 2,857,626 Reportable segment property and equipment, net 18,927,018 18,148,215 17,211,597 Corporate and other 1,887,619 1,557,368 1,268,622 Eliminated in consolidation (84,749 ) (70,124 ) (55,196 ) $ 20,729,888 $ 19,635,459 $ 18,425,023 Year Ended December 31, 2018 2017 2016 Capital expenditures: (In thousands) Las Vegas Strip Resorts $ 501,044 $ 419,983 $ 288,526 Regional Operations 72,865 66,628 29,425 MGM China 390,212 923,346 984,355 Reportable segment capital expenditures 964,121 1,409,957 1,302,306 Corporate and other 537,347 469,053 973,446 Eliminated in consolidation (14,625 ) (14,928 ) (13,279 ) $ 1,486,843 $ 1,864,082 $ 2,262,473

Related Party Transactions

Related Party Transactions	12 Months Ended
	Dec. 31, 2018
Related Party Transactions [Abstract]
Related Party Transactions	NOTE 17 — RELATED PARTY TRANSACTIONS CityCenter Management agreements. The Company and CityCenter have entered into agreements whereby the Company is responsible for management of the operations of CityCenter for a fee of 2% of revenue and 5% of EBITDA (as defined) for Aria and Vdara. The Company earned fees of $47 million, $49 million and $43 million for the years ended December 31, 2018, 2017 and 2016, respectively. The Company is being reimbursed for certain costs in performing its development and management services. During the years ended December 31, 2018, 2017 and 2016, the Company incurred $409 million, $390 million and $387 million, respectively, of costs reimbursable by CityCenter, primarily for employee compensation and certain allocated costs. As of December 31, 2018 and 2017, CityCenter owed the Company $83 million and $77 million, respectively, for management services and reimbursable costs recorded in “Accounts receivable, net” in the accompanying consolidated balance sheets. MGM China Ms. Ho is a member of the Board of Directors of, and holds a minority ownership interest in, MGM China. Ms. Ho is also the managing director of Shun Tak Holdings Limited (together with its subsidiaries “Shun Tak”), a leading conglomerate in Hong Kong with core businesses in transportation, property, hospitality and investments. Shun Tak provides various services and products, including ferry tickets, travel products, rental of hotel rooms, laundry services, advertising services and property cleaning services to MGM China. MGM China incurred expenses relating to Shun Tak of $17 million, $13 million and $10 million for the years ended December 31, 2018, 2017 and 2016, respectively. 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. An entity owned by Ms. Ho received distributions of $22 million, $15 million and $15 million for the years ended December 31, 2018, 2017 and 2016, respectively, in connection with the ownership of a noncontrolling interest in MGM Branding and Development Holdings, Ltd. MGP As further 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. The master lease has an initial lease term of ten years that began on April 25, 2016 (other than with respect to MGM National Harbor, as described below) with the potential to extend the term for four additional five-year terms thereafter at the option of the tenant. The master lease provides that any extension of its term must apply to all of the real estate under the master lease at the time of the extension. The master lease has a triple-net structure, which requires the tenant to pay substantially all costs associated with the lease, including real estate taxes, insurance, utilities and routine maintenance, in addition to the base rent. Additionally, the master lease provides the landlord with a right of first offer with respect to MGM Springfield, which the landlord may exercise should the Company elect to sell this property in the future. In connection with the MGM National Harbor transaction, the master lease was amended to provide that the initial term with respect to MGM National Harbor ends on April 31, 2024. Thereafter, the initial term of the master lease with respect to MGM National Harbor may be renewed at the option of the tenant for an initial renewal period lasting until the earlier of the end of the then-current term of the master lease or the next renewal term (depending on whether the Company elects to renew the other properties under the master lease in connection with the expiration of the initial ten-year term). If, however, the tenant chooses not to renew the lease with respect to MGM National Harbor after the initial MGM National Harbor term under the master lease, the tenant would also lose the right to renew the master lease with respect to the rest of the properties when the initial ten-year lease term ends related to the rest of the properties in 2026. 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. Rent under the master lease consists of a “base rent” component and a “percentage rent” component. As of December 31, 2018, the base rent represents approximately 90% of the rent payments due under the master lease and the percentage rent represents approximately 10% of the rent payments due under the master lease. The master lease also provides for fixed annual escalators of 2% on the base rent through the sixth lease year and the possibility for additional 2% increases thereafter subject to the tenant meeting an adjusted net revenue to rent ratio, as well as potential increases in percentage rent in year six and every five years thereafter based on a percentage of average actual annual net revenue during the preceding five year period calculated in accordance with the terms under the master lease. Subsequent to the Company completing its acquisition of Empire City in January 2019, MGP acquired the developed real property associated with Empire City from the Company for consideration of approximately $634 million. The real estate assets of Empire City will be leased to the Company pursuant to an amendment to the master lease, increasing the annual rent payment to MGP by $50 million, prorated for the remainder of the lease year. Consistent with the master lease terms, 90 percent of this rent will be fixed and contractually grow at 2 percent per year until 2022. In addition, the master lease provides the landlord with a right of first offer with respect to certain undeveloped land adjacent to the property to the extent the Company develops additional gaming facilities, which the landlord may exercise should the Company elect to sell this property in the future. Additionally, in September 2018, the Company entered into a definitive agreement with MGP to acquire Northfield OpCo from MGP for approximately $275 million, subject to customary purchase price adjustments. The real estate assets of Northfield will be leased to the Company pursuant to an amendment to the master lease, increasing the annual rent payment to MGP by $60 million, prorated for the remainder of the lease year. Consistent with the master lease terms, 90 percent of this rent will be fixed and contractually grow at 2 percent per year until 2022. The transaction is expected to close in the first half of 2019, subject to customary closing conditions. Also, in December 2018, the Company entered into an agreement with MGP whereby MGP will pay the Company consideration of $638 million for renovations undertaken by the Company regarding the Park MGM and NoMad Las Vegas property (the “Park MGM Lease Transaction”). Additionally, at closing, the parties will enter into an amendment to the master lease whereby the annual rent payment to MGP will increase by $50 million, prorated for the remainder of the lease year. Consistent with the master lease terms, 90% of this rent will be fixed and contractually grow at 2% per year until 2022. The transaction is expected to close in the first quarter of 2019 and is subject to customary closing conditions. 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	12 Months Ended
	Dec. 31, 2018
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Condensed Consolidating Financial Information	NOTE 18 —CONDENSED CONSOLIDATING FINANCIAL INFORMATION As of December 31, 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, MGM National Harbor, MGM Springfield, 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 December 31, 2018 and 2017 and for the years ended December 31, 2018, 2017 and 2016, 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 sale and leaseback of the real estate assets under the master lease 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. In connection with the adoption of ASC 842, the Company is reassessing whether the sale and leaseback of the real estate assets under the master lease now qualify as a passed sale and, accordingly, the corresponding lease classification, both of which could impact the condensed consolidating financial information. CONDENSED CONSOLIDATING BALANCE SHEET INFORMATION December 31, 2018 Non-Guarantor Subsidiaries Parent Guarantor Subsidiaries MGP Other Elimination Consolidated (In thousands) Current assets $ 304,741 $ 1,178,696 $ 78,222 $ 972,820 $ (7,701 ) $ 2,526,778 Property and equipment, net — 13,564,979 10,526,520 6,392,014 (9,753,625 ) 20,729,888 Investments in subsidiaries 22,419,282 3,401,031 — — (25,820,313 ) — Investments in the MGP Operating Partnership — 3,434,602 — 831,494 (4,266,096 ) — Investments in and advances to unconsolidated affiliates — 678,748 — 29,119 25,000 732,867 Intercompany accounts — 7,135,263 — — (7,135,263 ) — Other non-current assets 67,214 917,537 346,565 4,932,872 (43,015 ) 6,221,173 $ 22,791,237 $ 30,310,856 $ 10,951,307 $ 13,158,319 $ (47,001,013 ) $ 30,210,706 Current liabilities $ 154,484 $ 1,617,675 $ 189,247 $ 1,224,752 $ (237,276 ) $ 2,948,882 Intercompany accounts 6,932,325 — 307 202,631 (7,135,263 ) — Deferred income taxes, net 1,097,654 — 33,634 240,970 (29,720 ) 1,342,538 Long-term debt, net 8,055,472 570 4,666,949 2,365,014 — 15,088,005 Other long-term obligations 39,019 7,210,897 215,664 2,247,584 (9,453,924 ) 259,240 Total liabilities 16,278,954 8,829,142 5,105,801 6,280,951 (16,856,183 ) 19,638,665 Redeemable noncontrolling interests — — — 102,250 — 102,250 MGM Resorts International stockholders' equity 6,512,283 21,481,714 4,279,535 4,383,581 (30,144,830 ) 6,512,283 Noncontrolling interests — — 1,565,971 2,391,537 — 3,957,508 Total stockholders' equity 6,512,283 21,481,714 5,845,506 6,775,118 (30,144,830 ) 10,469,791 $ 22,791,237 $ 30,310,856 $ 10,951,307 $ 13,158,319 $ (47,001,013 ) $ 30,210,706 December 31, 2017 Non-Guarantor Subsidiaries Parent Guarantor 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 INFORMATION Year Ended December 31, 2018 Non-Guarantor Subsidiaries Parent Guarantor Subsidiaries MGP Other Elimination Consolidated (In thousands) Net revenues $ — $ 7,647,304 $ 1,002,444 $ 3,983,575 $ (870,227 ) $ 11,763,096 Equity in subsidiaries' earnings 1,216,482 116,676 — — (1,333,158 ) — Expenses Casino and hotel operations 11,130 4,350,634 88,053 2,491,007 (21,949 ) 6,918,875 General and administrative 9,945 1,238,461 96,607 495,015 (75,390 ) 1,764,638 Corporate expense 156,503 216,318 48,675 21,317 (23,609 ) 419,204 Preopening and start-up expenses — 26,100 — 125,292 — 151,392 Property transactions, net — (15,955 ) 20,319 25,033 (20,250 ) 9,147 Depreciation and amortization — 622,552 273,031 543,606 (261,145 ) 1,178,044 177,578 6,438,110 526,685 3,701,270 (402,343 ) 10,441,300 Income (loss) from unconsolidated affiliates — 148,866 — (1,176 ) — 147,690 Operating income 1,038,904 1,474,736 475,759 281,129 (1,801,042 ) 1,469,486 Interest expense, net of amounts capitalized (480,985 ) (510 ) (215,532 ) (72,486 ) — (769,513 ) Other, net 63,722 (444,897 ) (4,690 ) (187,786 ) 507,684 (65,967 ) Income before income taxes 621,641 1,029,329 255,537 20,857 (1,293,358 ) 634,006 Benefit (provision) for income taxes (154,869 ) — (10,835 ) 115,592 — (50,112 ) Net income 466,772 1,029,329 244,702 136,449 (1,293,358 ) 583,894 Less: Net income attributable to noncontrolling interests — — (67,065 ) (50,057 ) — (117,122 ) Net income attributable to MGM Resorts International $ 466,772 $ 1,029,329 $ 177,637 $ 86,392 $ (1,293,358 ) $ 466,772 Net income $ 466,772 $ 1,029,329 $ 244,702 $ 136,449 $ (1,293,358 ) $ 583,894 Other comprehensive income (loss), net of tax: Foreign currency translation adjustment (7,422 ) (7,422 ) — (13,022 ) 14,844 (13,022 ) Unrealized gain on cash flow hedges 2,476 — 4,128 — (3,028 ) 3,576 Other comprehensive income (loss) (4,946 ) (7,422 ) 4,128 (13,022 ) 11,816 (9,446 ) Comprehensive income 461,826 1,021,907 248,830 123,427 (1,281,542 ) 574,448 Less: Comprehensive income attributable to noncontrolling interests — — (68,165 ) (44,457 ) — (112,622 ) Comprehensive income attributable to MGM Resorts International $ 461,826 $ 1,021,907 $ 180,665 $ 78,970 $ (1,281,542 ) $ 461,826 CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS INFORMATION Year Ended December 31, 2018 Non-Guarantor Subsidiaries Parent Guarantor Subsidiaries MGP Other Elimination Consolidated (In thousands) Cash flows from operating activities Net cash provided by (used in) operating activities $ (460,117 ) $ 1,271,583 $ 580,207 $ 330,866 $ — $ 1,722,539 Cash flows from investing activities Capital expenditures, net of construction payable — (696,076 ) (1,578 ) (789,189 ) — (1,486,843 ) Dispositions of property and equipment — 25,507 — 105 — 25,612 Proceeds from sale of business units and investment in unconsolidated affiliate — 163,616 — — — 163,616 Acquisition of Northfield, net of cash acquired — — (1,034,534 ) — — (1,034,534 ) Investments in and advances to unconsolidated affiliates — (56,295 ) — — — (56,295 ) Distributions from unconsolidated affiliates in excess of cumulative earnings — 322,631 — — — 322,631 Intercompany accounts — (1,136,764 ) — — 1,136,764 — Other — (13,416 ) — (3,792 ) — (17,208 ) Net cash used in investing activities — (1,390,797 ) (1,036,112 ) (792,876 ) 1,136,764 (2,083,021 ) Cash flows from financing activities Net borrowings under bank credit facilities - maturities of 90 days or less 377,500 — 727,750 137,009 — 1,242,259 Issuance of long-term debt 1,000,000 — — — — 1,000,000 Retirement of senior debentures — (2,265 ) — — — (2,265 ) Debt issuance costs (26,125 ) — (17,490 ) (32,904 ) — (76,519 ) Dividends paid to common shareholders (260,592 ) — — — — (260,592 ) MGP dividends paid to consolidated subsidiaries — — (333,192 ) — 333,192 — Distributions to noncontrolling interest owners — — (121,069 ) (63,863 ) — (184,932 ) Intercompany accounts 917,760 207,015 — 345,181 (1,469,956 ) — Purchases of common stock (1,283,333 ) — — — — (1,283,333 ) Other (32,225 ) (6,979 ) — (6,180 ) — (45,384 ) Net cash provided by financing activities 692,985 197,771 255,999 379,243 (1,136,764 ) 389,234 Effect of exchange rate on cash — — — (1,985 ) — (1,985 ) Cash and cash equivalents Net increase (decrease) for the period 232,868 78,557 (199,906 ) (84,752 ) — 26,767 Balance, beginning of period 26,870 311,044 259,722 902,359 — 1,499,995 Balance, end of period $ 259,738 $ 389,601 $ 59,816 $ 817,607 $ — $ 1,526,762 CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS AND COMPREHENSIVE INCOME INFORMATION Year Ended December 31, 2017 Non-Guarantor Subsidiaries Parent Guarantor Subsidiaries MGP Other Elimination Consolidated (In thousands) Net revenues $ — $ 7,649,990 $ 765,695 $ 3,151,304 $ (769,510 ) $ 10,797,479 Equity in subsidiaries' earnings 1,391,725 156,081 — — (1,547,806 ) — Expenses Casino and hotel operations 10,784 4,262,212 — 1,923,942 (3,816 ) 6,193,122 General and administrative 8,742 1,180,989 84,348 369,844 (84,348 ) 1,559,575 Corporate expense 127,092 200,801 34,085 (515 ) (4,591 ) 356,872 NV Energy exit expense — (40,629 ) — — — (40,629 ) Preopening and start-up expenses — 8,258 — 110,217 — 118,475 Property transactions, net — 43,985 34,022 6,294 (34,022 ) 50,279 Depreciation and amortization — 649,676 260,455 343,804 (260,455 ) 993,480 146,618 6,305,292 412,910 2,753,586 (387,232 ) 9,231,174 Income (loss) from unconsolidated affiliates — 147,234 — (1,012 ) — 146,222 Operating income 1,245,107 1,648,013 352,785 396,706 (1,930,084 ) 1,712,527 Interest expense, net of amounts capitalized (466,907 ) (982 ) (184,175 ) (16,681 ) — (668,745 ) Other, net 26,215 (402,602 ) 2,286 (142,997 ) 434,106 (82,992 ) Income before income taxes 804,415 1,244,429 170,896 237,028 (1,495,978 ) 960,790 Benefit (provision) for income taxes 1,147,637 — (4,906 ) (15,337 ) — 1,127,394 Net income 1,952,052 1,244,429 165,990 221,691 (1,495,978 ) 2,088,184 Less: Net income attributable to noncontrolling interests — — (41,775 ) (94,357 ) — (136,132 ) Net income attributable to MGM Resorts International $ 1,952,052 $ 1,244,429 $ 124,215 $ 127,334 $ (1,495,978 ) $ 1,952,052 Net income $ 1,952,052 $ 1,244,429 $ 165,990 $ 221,691 $ (1,495,978 ) $ 2,088,184 Other comprehensive income (loss), net of tax: Foreign currency translation adjustment (23,995 ) (23,995 ) — (43,188 ) 47,990 (43,188 ) Unrealized gain on cash flow hedges 5,234 — 9,782 — (7,021 ) 7,995 Other comprehensive income (loss) (18,761 ) (23,995 ) 9,782 (43,188 ) 40,969 (35,193 ) Comprehensive income 1,933,291 1,220,434 175,772 178,503 (1,455,009 ) 2,052,991 Less: Comprehensive income attributable to noncontrolling interests — — (44,536 ) (75,164 ) — (119,700 ) Comprehensive income attributable to MGM Resorts International $ 1,933,291 $ 1,220,434 $ 131,236 $ 103,339 $ (1,455,009 ) $ 1,933,291 CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS INFORMATION Year Ended December 31, 2017 Non-Guarantor Subsidiaries Parent Guarantor Subsidiaries MGP Other Elimination Consolidated (In thousands) Cash flows from operating activities Net cash provided by (used in) operating activities $ (584,252 ) $ 1,152,083 $ 482,578 $ 1,156,002 $ — $ 2,206,411 Cash flows from investing activities Capital expenditures, net of construction payable — (482,024 ) (488 ) (1,381,570 ) — (1,864,082 ) Dispositions of property and equipment — 502 — 216 — 718 Acquisition of National Harbor, net of cash acquired — — (462,500 ) — 462,500 — Investments in and advances to unconsolidated affiliates — (16,727 ) — — — (16,727 ) Distributions from unconsolidated affiliates in excess of cumulative earnings — 301,211 — — — 301,211 Intercompany accounts 462,500 (1,186,942 ) — — 724,442 — Other — (1,754 ) — 42 — (1,712 ) Net cash provided by (used in) investing activities 462,500 (1,385,734 ) (462,988 ) (1,381,312 ) 1,186,942 (1,580,592 ) Cash flows from financing activities Net borrowings (repayments) under bank credit facilities - maturities of 90 days or less 122,500 — (466,875 ) 359,376 — 15,001 Issuance of long-term debt — — 350,000 — — 350,000 Retirement of senior notes (502,669 ) — — — — (502,669 ) Debt issuance costs — — (5,598 ) (4,379 ) — (9,977 ) Issuance of MGM Growth Properties Class A shares in public offering — — 404,685 — — 404,685 MGM Growth Properties Class A share issuance costs — — (17,137 ) — — (17,137 ) Dividends paid to common shareholders (252,014 ) — — — — (252,014 ) MGP dividends paid to consolidated subsidiaries — — (290,091 ) — 290,091 — Distributions to noncontrolling interest owners — — (95,344 ) (75,058 ) — (170,402 ) Intercompany accounts 1,042,111 248,626 — 186,296 (1,477,033 ) — Purchases of common stock (327,500 ) — — — — (327,500 ) Other (33,801 ) (11,644 ) — (13,320 ) — (58,765 ) Net cash provided by (used in) financing activities 48,627 236,982 (120,360 ) 452,915 (1,186,942 ) (568,778 ) Effect of exchange rate on cash — — — (3,627 ) — (3,627 ) Cash and cash equivalents Net increase (decrease) for the period (73,125 ) 3,331 (100,770 ) 223,978 — 53,414 Balance, beginning of period 99,995 307,713 360,492 678,381 — 1,446,581 Balance, end of period $ 26,870 $ 311,044 $ 259,722 $ 902,359 $ — $ 1,499,995 CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS AND COMPREHENSIVE INCOME INFORMATION Year Ended December 31, 2016 Non-Guarantor Subsidiaries Parent Guarantor Subsidiaries MGP Other Elimination Consolidated (In thousands) Net revenues $ — $ 7,050,893 $ 467,548 $ 2,430,795 $ (470,967 ) $ 9,478,269 Equity in subsidiaries' earnings 1,779,119 174,587 — — (1,953,706 ) — Expenses Casino and hotel operations 9,063 4,027,602 — 1,487,975 (3,419 ) 5,521,221 General and administrative 6,834 1,137,027 68,063 214,839 (48,229 ) 1,378,534 Corporate expense 131,938 160,887 20,360 (194 ) (286 ) 312,705 NV Energy exit expense — 139,335 — — — 139,335 Preopening and start-up expenses — 8,775 — 131,300 — 140,075 Property transactions, net — 16,449 4,684 (246 ) (3,809 ) 17,078 Gain on Borgata transaction — (430,118 ) — — — (430,118 ) Depreciation and amortization — 524,123 220,667 261,730 (156,993 ) 849,527 147,835 5,584,080 313,774 2,095,404 (212,736 ) 7,928,357 Income (loss) from unconsolidated affiliates — 528,605 — (318 ) — 528,287 Operating income 1,631,284 2,170,005 153,774 335,073 (2,211,937 ) 2,078,199 Interest expense, net of amounts capitalized (562,536 ) (1,500 ) (115,438 ) (15,299 ) — (694,773 ) Other, net (7,864 ) (324,141 ) (726 ) (93,145 ) 300,039 (125,837 ) Income before income taxes 1,060,884 1,844,364 37,610 226,629 (1,911,898 ) 1,257,589 Benefit (provision) for income taxes 39,524 (22,579 ) (2,264 ) (36,424 ) — (21,743 ) Net income 1,100,408 1,821,785 35,346 190,205 (1,911,898 ) 1,235,846 Less: Net income attributable to noncontrolling interests — — (29,938 ) (105,500 ) — (135,438 ) Net income attributable to MGM Resorts International $ 1,100,408 $ 1,821,785 $ 5,408 $ 84,705 $ (1,911,898 ) $ 1,100,408 Net income $ 1,100,408 $ 1,821,785 $ 35,346 $ 190,205 $ (1,911,898 ) $ 1,235,846 Other comprehensive income (loss), net of tax: Foreign currency translation adjustment (1,477 ) (1,477 ) — (2,680 ) 2,954 (2,680 ) Unrealized gain on cash flow hedges 1,434 — 1,879 — (1,434 ) 1,879 Other comprehensive income (loss) (43 ) (1,477 ) 1,879 (2,680 ) 1,520 (801 ) Comprehensive income 1,100,365 1,820,308 37,225 187,525 (1,910,378 ) 1,235,045 Less: Comprehensive income attributable to noncontrolling interests — — (30,383 ) (104,297 ) — (134,680 ) Comprehensive income attributable to MGM Resorts International $ 1,100,365 $ 1,820,308 $ 6,842 $ 83,228 $ (1,910,378 ) $ 1,100,365 CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS INFORMATION Year Ended December 31, 2016 Non-Guarantor Subsidiaries Parent Guarantor Subsidiaries MGP Other Elimination Consolidated (In thousands) Cash flows from operating activities Net cash provided by (used in) operating activities $ (603,136 ) $ 1,313,595 $ 297,781 $ 525,732 $ — $ 1,533,972 Cash flows from investing activities Capital expenditures, net of construction payable — (290,455 ) (138,987 ) (1,833,031 ) — (2,262,473 ) Dispositions of property and equipment — 1,940 — 2,004 — 3,944 Proceeds from partial disposition of investment in unconsolidated affiliates — 15,000 — — — 15,000 Acquisition of Borgata, net of cash acquired — (559,443 ) — — — (559,443 ) Investments in and advances to unconsolidated affiliates — (3,633 ) — — — (3,633 ) Distributions from unconsolidated affiliates in excess of cumulative earnings — 542,097 — — — 542,097 Intercompany accounts — (1,562,442 ) — — 1,562,442 — Other — (7,651 ) — (4,045 ) — (11,696 ) Net cash used in investing activities — (1,864,587 ) (138,987 ) (1,835,072 ) 1,562,442 (2,276,204 ) Cash flows from financing activities Net borrowings (repayments) under bank credit facilities - maturities of 90 days or less (2,016,000 ) 4,094,850 (2,411,600 ) 823,782 — 491,032 Borrowings under bank credit facilities - maturities longer than 90 days 1,845,375 — — — — 1,845,375 Repayments under bank credit facilities - maturities longer than 90 days (1,845,375 ) — — — — (1,845,375 ) Issuance of long-term debt 500,000 — 1,550,000 — — 2,050,000 Retirement of senior notes (2,255,392 ) (2,661 ) — — — (2,258,053 ) Repayment of Borgata credit facility — (583,598 ) — — — (583,598 ) Debt issuance costs (29,871 ) — (77,163 ) (32,550 ) — (139,584 ) Issuance of MGM Growth Properties Class A shares in public offering — — 1,207,500 — — 1,207,500 MGM Growth Properties Class A share issuance costs — — (75,032 ) — — (75,032 ) Acquisition of MGM China shares (100,000 ) — — — — (100,000 ) MGP dividends paid to consolidated subsidiaries — — (113,414 ) — 113,414 — Distributions to noncontrolling interest owners — — (37,415 ) (65,952 ) — (103,367 ) Intercompany accounts 4,082,303 (2,954,054 ) 158,822 388,785 (1,675,856 ) — Proceeds from issuance of redeemable noncontrolling interests — — — 47,325 — 47,325 Other (16,765 ) — — (36 ) — (16,801 ) Net cash provided by financing activities 164,275 554,537 201,698 1,161,354 (1,562,442 ) 519,422 Effect of exchange rate on cash — — — (921 ) — (921 ) Cash and cash equivalents Net increase (decrease) for the period (438,861 ) 3,545 360,492 (148,907 ) — (223,731 ) Balance, beginning of period 538,856 304,168 — 827,288 — 1,670,312 Balance, end of period $ 99,995 $ 307,713 $ 360,492 $ 678,381 $ — $ 1,446,581

Selected Quarterly Financial Re

Selected Quarterly Financial Results (Unaudited)	12 Months Ended
	Dec. 31, 2018
Quarterly Financial Information Disclosure [Abstract]
Selected Quarterly Financial Results (Unaudited)	NOTE 19 — SELECTED QUARTERLY FINANCIAL RESULTS (UNAUDITED) Quarter First Second Third Fourth Total 2018 (In thousands, except per share data) Net revenues $ 2,822,237 $ 2,858,695 $ 3,029,302 $ 3,052,862 $ 11,763,096 Operating income 359,757 363,075 410,903 335,751 1,469,486 Net income 266,301 140,423 171,410 5,760 583,894 Net income (loss) attributable to MGM Resorts International 223,444 123,777 142,878 (23,327 ) 466,772 Earnings (loss) per share-basic $ 0.39 $ 0.21 $ 0.26 $ (0.06 ) $ 0.82 Earnings (loss) per share-diluted $ 0.38 $ 0.21 $ 0.26 $ (0.06 ) $ 0.81 2017 Net revenues $ 2,717,566 $ 2,652,133 $ 2,830,175 $ 2,597,605 $ 10,797,479 Operating income 496,511 499,898 492,704 223,414 1,712,527 Net income 252,574 240,873 175,744 1,418,993 2,088,184 Net income attributable to MGM Resorts International 206,412 209,864 148,363 1,387,413 1,952,052 Earnings per share-basic $ 0.36 $ 0.36 $ 0.26 $ 2.42 $ 3.38 Earnings per share-diluted $ 0.36 $ 0.36 $ 0.26 $ 2.39 $ 3.34 Because earnings per share amounts are calculated using the weighted average number of common and dilutive common equivalent shares outstanding during each quarter, the sum of the per share amounts for the four quarters does not equal the total earnings per share amounts for the year. T Certain items affecting comparability for the year ended December 31, 2018 are as follows: • First Quarter. The Company recorded a $72 million tax benefit ($0.13 per share in the quarter) related to a measurement period adjustment of the Tax Act; • Second Quarter. None; • Third Quarter. The Company recorded a $45 million gain ($0.07 per share in the quarter and $0.06 per share in the full year of 2018) related to the sale of Grand Victoria. Additionally, the Company recorded a $12 million gain ($0.02 per share in the quarter and full year of 2018) related to the sale of Mandarin Oriental; and • Fourth Quarter. The Company recorded business interruption insurance proceeds of $24 million ($0.04 per share in the quarter and $0.03 per share in the full year of 2018) primarily at Mandalay Bay. Additionally, the Company recorded a $92 million tax expense ($0.17 per share in the quarter) related to the Tax Act. Certain items affecting comparability for the year ended December 31, 2017 are as follows: • First Quarter. None; • Second Quarter. The Company recorded a $41 million gain ($0.05 per share in the quarter and full year of 2017) related to a modification of the 2016 NV Energy exit fee. Additionally, the Company recorded a $36 million gain ($0.04 per share in the quarter and full year of 2017) related to Borgata’s share of a property tax settlement from Atlantic City; • Third Quarter. None; and • Fourth Quarter. The Company recorded a $1.4 billion tax benefit ($2.49 per share in the quarter and $2.46 per share for full year of 2017) related to the enactment of the Tax Act .

Schedule II - Valuation and Qua

Schedule II - Valuation and Qualifying Accounts	12 Months Ended
	Dec. 31, 2018
Valuation And Qualifying Accounts [Abstract]
Schedule II - Valuation and Qualifying Accounts	SCHEDULE II — VALUATION AND QUALIFYING ACCOUNTS (In thousands) Balance at Provision for Write-offs, Beginning of Doubtful Net of Balance at Period Accounts Recoveries End of Period Allowance for doubtful accounts: Year Ended December 31, 2018 $ 92,571 $ 39,762 $ (41,558 ) $ 90,775 Year Ended December 31, 2017 97,920 20,603 (25,952 ) 92,571 Year Ended December 31, 2016 89,789 10,863 (2,732 ) 97,920 Balance at Beginning of Balance at Period Increase Decrease End of Period Deferred income tax valuation allowance: Year Ended December 31, 2018 $ 2,513,738 $ — $ (36,035 ) $ 2,477,703 Year Ended December 31, 2017 2,583,274 — (69,536 ) 2,513,738 Year Ended December 31, 2016 2,807,131 2,975 (226,832 ) 2,583,274

Basis of Presentation and Sig_2

Basis of Presentation and Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2018
Accounting Policies [Abstract]
Principles of consolidation	Principles of consolidation. For entities not determined to be a variable interest entity (“VIE”), the Company consolidates such entities in which the Company owns 100% of the equity. For entities in which the Company owns less than 100% of the equity interest, the Company consolidates the entity if it has the direct or indirect ability to control the entities’ activities based upon the terms of the respective entities’ ownership agreements. For these entities, the Company records a noncontrolling interest in the consolidated balance sheets. The Company’s investments in unconsolidated affiliates which are 50% or less owned are accounted for under the equity method when the Company can exercise significant influence over or has joint control of the unconsolidated affiliate. All intercompany balances and transactions are eliminated in consolidation. The Company evaluates entities for which control is achieved through means other than voting rights to determine if it is the primary beneficiary of a VIE. A VIE is an entity in which either (i) the equity investors as a group, if any, lack the power through voting or similar rights to direct the activities of such entity that most significantly impact such entity’s economic performance or (ii) the equity investment at risk is insufficient to finance that entity’s activities without additional subordinated financial support. The Company identifies the primary beneficiary of a VIE as the enterprise that has both of the following characteristics: (i) the power to direct the activities of the VIE that most significantly impact the entity’s economic performance; and (ii) the obligation to absorb losses or receive benefits of the VIE that could potentially be significant to the entity. The Company consolidates its investment in a VIE when it determines that it is its primary beneficiary. For these VIEs, the Company records a noncontrolling interest in the consolidated balance sheets. The Company may change its original assessment of a VIE upon subsequent events such as the modification of contractual arrangements that affect the characteristics or adequacy of the entity’s equity investments at risk and the disposition of all or a portion of an interest held by the primary beneficiary. The Company performs this analysis on an ongoing basis. Management has determined that MGP is a 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 December 31, 2018 as noncontrolling interest in the Company’s consolidated financial statements. As of December 31, 2018, on a consolidated basis MGP had total assets of $11.0 billion, primarily related to its real estate investments, and total liabilities of $5.1 billion, primarily related to its indebtedness.
Management's use of estimates	Management’s use of estimates. The consolidated financial statements have been prepared in conformity with accounting principles generally accepted in the United States of America. These principles require the Company’s management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.
Fair value measurements	Fair value measurements. Fair value measurements affect the Company’s accounting and impairment assessments of its long-lived assets, investments in unconsolidated affiliates, cost method investments, assets acquired and liabilities assumed in an acquisition, and goodwill and other intangible assets. Fair value measurements also affect the Company’s accounting for certain of its financial assets and liabilities. Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date and is measured according to a hierarchy that includes: Level 1 inputs, such as quoted prices in an active market; Level 2 inputs, which are observable inputs for similar assets; or Level 3 inputs, which are unobservable inputs. The Company used the following inputs in its fair value measurements: • Level 1 and Level 2 inputs for its long-term debt fair value disclosures. See Note 9; • Level 2 and Level 3 inputs when assessing the fair value of assets acquired and liabilities assumed during the Northfield transaction and Borgata transaction. See Note 4.
Cash and cash equivalents	Cash and cash equivalents. Cash and cash equivalents include investments and interest bearing instruments with maturities of 90 days or less at the date of acquisition. Such investments are carried at cost, which approximates market value. Book overdraft balances resulting from the Company’s cash management program are recorded as accounts payable or construction payable as applicable.
Accounts receivable and credit risk	Accounts receivable and credit risk. Financial instruments that potentially subject the Company to concentrations of credit risk consist primarily of casino accounts receivable. The Company issues credit to approved casino customers and gaming promoters following background checks and investigations of creditworthiness. At December 31, 2018 and 2017, approximately 62% and 40%, respectively, of our gross casino accounts receivable were owed by customers from foreign countries, primarily Asia. Business or economic conditions or other significant events in these countries could affect the collectability of such receivables. Accounts receivable are typically non-interest bearing and are initially recorded at cost. Accounts are written off when management deems the account to be uncollectible. Recoveries of accounts previously written off are recorded when received. An estimated allowance for doubtful accounts is maintained to reduce the Company’s receivables to their net carrying amount, which approximates fair value. The allowance is estimated based on both a specific review of customer accounts as well as historical collection experience and current economic and business conditions. Management believes that as of December 31, 2018, no significant concentrations of credit risk existed for which an allowance had not already been recorded.
Inventories	Inventories. Inventories consist primarily of food and beverage, retail merchandise and operating supplies, and are stated at the lower of cost or net realizable value. Cost is determined primarily using the average cost method for food and beverage and operating supplies. Cost for retail merchandise is determined using the cost method.
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 or losses on dispositions of property and equipment are included in the determination of income or loss. Maintenance costs are expensed as incurred. As of December 31, 2018 and 2017, the Company had accrued $47 million and $28 million, respectively for property and equipment within accounts payable, and $2 million and $34 million, respectively, related to construction retention within other long-term liabilities. Property and equipment are generally depreciated over the following estimated useful lives on a straight-line basis: Buildings and improvements 15 to 40 years Land improvements 10 to 20 years Furniture and fixtures 3 to 20 years Equipment 3 to 15 years The Company evaluates its property and equipment and other long-lived assets for impairment based on its classification as held for sale or to be held and used. Several criteria must be met before an asset is classified as held for sale, including that management with the appropriate authority commits to a plan to sell the asset at a reasonable price in relation to its fair value and is actively seeking a buyer. For assets held for sale, the Company recognizes the asset at the lower of carrying value or fair market value less costs to sell, as estimated based on comparable asset sales, offers received, or a discounted cash flow model. For assets to be held and used, the Company reviews for impairment whenever indicators of impairment exist. The Company then compares the estimated future cash flows of the asset, on an undiscounted basis, to the carrying value of the asset. If the undiscounted cash flows exceed the carrying value, no impairment is indicated. If the undiscounted cash flows do not exceed the carrying value, then an impairment charge is recorded based on the fair value of the asset, typically measured using a discounted cash flow model. If an asset is still under development, future cash flows include remaining construction costs. All recognized impairment losses, whether for assets held for sale or assets to be held and used, are recorded as operating expenses.
Capitalized interest	Capitalized interest. The interest cost associated with major development and construction projects is capitalized and included in the cost of the project. When no debt is incurred specifically for a project, interest is capitalized on amounts expended on the project using the weighted-average cost of the Company’s outstanding borrowings. Capitalization of interest ceases when the project is substantially complete or development activity is suspended for more than a brief period.
Investments in and advances to unconsolidated affiliates	Investments in and advances to unconsolidated affiliates. The Company has investments in unconsolidated affiliates accounted for under the equity method. Under the equity method, carrying value is adjusted for the Company’s share of the investees’ earnings and losses, amortization of certain basis differences, as well as capital contributions to and distributions from these companies. Distributions in excess of equity method earnings are recognized as a return of investment and recorded as investing cash inflows in the accompanying consolidated statements of cash flows. The Company classifies operating income and losses as well as gains and impairments related to its investments in unconsolidated affiliates as a component of operating income or loss and classifies non-operating income or losses related to its investments in unconsolidated affiliates as a component of non-operating income or loss, as the Company’s investments in such unconsolidated affiliates are an extension of the Company’s core business operations. The Company evaluates its investments in unconsolidated affiliates for impairment whenever events or changes in circumstances indicate that the carrying value of its investment may have experienced an “other-than-temporary” decline in value. If such conditions exist, the Company compares the estimated fair value of the investment to its carrying value to determine if an impairment is indicated and determines whether the impairment is “other-than-temporary” based on its assessment of all relevant factors, including consideration of the Company’s intent and ability to retain its investment. The Company estimates fair value using a discounted cash flow analysis based on estimated future results of the investee and market indicators of terminal year capitalization rates, and a market approach that utilizes business enterprise value multiples based on a range of multiples from the Company’s peer group. See Note 6 for results of the Company’s review of its investment in certain of its unconsolidated affiliates.
Goodwill and other intangible assets	Goodwill and other intangible assets. Goodwill represents the excess of purchase price over fair market value of net assets acquired in business combinations. Goodwill and indefinite-lived intangible assets must be reviewed for impairment at least annually and between annual test dates in certain circumstances. The Company performs its annual impairment tests in the fourth quarter of each fiscal year. No impairments were indicated or recorded as a result of the annual impairment review for goodwill and indefinite-lived intangible assets in 2018, 2017 and 2016. Accounting guidance provides entities the option to perform a qualitative assessment of goodwill and indefinite-lived intangible assets (commonly referred to as “step zero”) in order to determine whether further impairment testing is necessary. In performing the step zero analysis the Company considers macroeconomic conditions, industry and market considerations, current and forecasted financial performance, entity-specific events, and changes in the composition or carrying amount of net assets of reporting units for goodwill. In addition, the Company takes into consideration the amount of excess of fair value over carrying value determined in the last quantitative analysis that was performed, as well as the period of time that has passed since the last quantitative analysis. If the step zero analysis indicates that it is more likely than not that the fair value is less than its carrying amount, the entity would proceed to a quantitative analysis. Under the quantitative analysis, goodwill for relevant reporting units is tested for impairment using a discounted cash flow analysis based on the estimated future results of the Company’s reporting units discounted using market discount rates and market indicators of terminal year capitalization rates, and a market approach that utilizes business enterprise value multiples based on a range of multiples from the Company’s peer group. Effective January 1, 2017, the Company adopted accounting guidance that simplifies goodwill impairment testing by eliminating the requirement to calculate the implied fair value of goodwill (formerly “Step 2”) in the event that impairment is identified. Instead, an impairment charge is recognized for the amount by which the carrying value exceeds the reporting unit’s fair value, not to exceed the total amount of goodwill allocated to that reporting unit. Under the quantitative analysis, license rights are tested for impairment using a discounted cash flow approach, and trademarks are tested for impairment using the relief-from-royalty method. If the fair value of an indefinite-lived intangible asset is less than its carrying amount, an impairment loss is recognized equal to the difference.
Revenue recognition	Revenue recognition. The Company’s revenue from contracts with customers consists of casino wagers 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 other goods and services provided by the Company to gaming patrons on a discretionary basis to incentivize gaming, the Company allocates revenue from the casino wager transaction to the good or service delivered based upon stand-alone selling price (“SSP”). Discretionary goods and services provided by the Company and supplied by third parties are recognized as an operating expense. 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. Commissions and incentives provided to gaming customers were collectively $2.3 billion, $2.1 billion and $1.8 billion for the years ended December 31, 2018, 2017 and 2016, 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 goods 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 owed 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 December 31 323,811 597,753 113,293 91,119 667,285 539,626 Increase / (decrease) $ (273,942 ) $ 370,215 $ 22,174 $ 2,740 $ 127,659 $ 102,339 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 16. 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. Lease revenues include $51 million, $51 million and $50 million recorded within food and beverage revenue for 2018, 2017 and 2016, respectively, and $87 million, $79 million and $77 million recorded within entertainment, retail, and other revenue for the same such periods, respectively.
Advertising	Advertising. The Company expenses advertising costs the first time the advertising takes place. Advertising expense, which is generally included in general and administrative expenses, was $305 million, $223 million and $171 million for 2018, 2017 and 2016, respectively.
Corporate expense	Corporate expense. Corporate expense represents unallocated payroll, aircraft costs, professional fees and various other expenses not directly related to the Company’s casino resort operations. In addition, corporate expense includes the costs associated with the Company’s evaluation and pursuit of new business opportunities, which are expensed as incurred.
Preopening and start-up expenses	Preopening and start-up expenses. Preopening and start-up costs, including organizational costs, are expensed as incurred. Costs classified as preopening and start-up expenses include payroll, outside services, advertising, and other expenses related to new or start-up operations.
Property transactions, net	Property transactions, net. The Company classifies transactions such as write-downs and impairments, demolition costs, and normal gains and losses on the sale of assets as “Property transactions, net.” See Note 15 for a detailed discussion of these amounts.
Redeemable noncontrolling interest	Redeemable noncontrolling interest. Certain noncontrolling interest parties have non-voting economic interests in MGM National Harbor which provide for annual preferred distributions by MGM National Harbor to the noncontrolling interest parties based on a percentage of its annual net gaming revenue (as defined in the MGM National Harbor operating agreement). Such distributions are accrued each quarter and are paid 90-days after the end of each fiscal year. Beginning on December 31, 2019 the noncontrolling interest parties will each have the ability to require MGM National Harbor to purchase all or a portion of their interests for a purchase price based on a contractually agreed upon formula. Additionally, certain noncontrolling interest parties each have the right to sell back all or a portion of their interests prior to such date if MGM National Harbor were to guarantee or grant liens to secure any indebtedness of the Company or its affiliates other than the indebtedness of MGM National Harbor. The Company has recorded the interests as “Redeemable noncontrolling interests” in the mezzanine section of the accompanying consolidated balance sheets and not stockholders’ equity because their redemption is not exclusively in the Company’s control. The interests were initially accounted for at fair value. Subsequently, the Company recognizes changes in the redemption value as they occur and adjusts the carrying amount of the redeemable noncontrolling interests to equal the maximum redemption value, provided such amount does not fall below the initial carrying value, at the end of each reporting period. The Company records any changes caused by such an adjustment in capital in excess of par value. Additionally, the carrying amount of the redeemable noncontrolling interests is adjusted for accrued annual preferred distributions, with changes caused by such adjustments recorded within net income (loss) attributable to noncontrolling interests.
Income (loss) per share of common stock	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. Year Ended December 31, 2018 2017 2016 Numerator: (In thousands) Net income attributable to MGM Resorts International $ 466,772 $ 1,952,052 $ 1,100,408 Adjustment related to redeemable noncontrolling interests (21,326 ) (18,363 ) (28 ) Net income available to common stockholders - basic 445,446 1,933,689 1,100,380 Potentially dilutive effect due to MGP and MGM China stock compensation plans (206 ) (268 ) (51 ) Net income attributable to common stockholders - diluted $ 445,240 $ 1,933,421 $ 1,100,329 Denominator: Weighted-average common shares outstanding basic 544,253 572,253 568,134 Potential dilution from share-based awards 5,283 6,542 5,183 Weighted-average common and common equivalent shares - diluted 549,536 578,795 573,317 Antidilutive share-based awards excluded from the calculation of diluted earnings per share 2,668 2,601 4,207
Currency translation	Currency translation. The Company translates the financial statements of foreign subsidiaries that are not denominated in U.S. dollars. Balance sheet accounts are translated at the exchange rate in effect at each balance sheet date. Income statement accounts are translated at the average rate of exchange prevailing during the period. Translation adjustments resulting from this process are recorded to other comprehensive income (loss).
Accumulated other comprehensive income (loss)	Accumulated other comprehensive income (loss). Comprehensive income (loss) includes net income (loss) and all other non-stockholder changes in equity, or other comprehensive income (loss). Elements of the Company’s accumulated other comprehensive income are reported in the accompanying consolidated statements of stockholders’ equity. Amounts reported in accumulated other comprehensive income related to cash flow hedges will be reclassified to interest expense as interest payments are made on our variable-rate debt.
Recently issued accounting standards	Recently issued accounting standards. In February 2016, the FASB issued ASC 842 “Leases (Topic 842)”, which replaces the existing guidance in Topic 840, “Leases”, (“ASC 842”). 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 classify and account for its lease agreements as either finance or operating. Both finance 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 will recognize interest expense associated with the lease liability and depreciation expense associated with the ROU asset; and for operating leases, the lessee will recognize straight-line rent expense. The Company will adopt ASC 842 on January 1, 2019 utilizing the simplified transition method and accordingly will not recast comparative period financial information. The Company will elect the basket of transition practical expedients which includes not needing to reassess: (1) whether any expired or existing contracts are or contain leases, (2) the lease classification for any expired or existing leases, and (3) direct costs for any existing leases. The Company also currently expects that the most significant impact will be the recognition of ROU assets and lease liabilities for operating leases that exist at the Company on the date of adoption with the most material of such leases being ground leases.

Basis of Presentation and Sig_3

Basis of Presentation and Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2018
Accounting Policies [Abstract]
Schedule of Estimated Useful Lives of Property and Equipment	Property and equipment are generally depreciated over the following estimated useful lives on a straight-line basis: Buildings and improvements 15 to 40 years Land improvements 10 to 20 years Furniture and fixtures 3 to 20 years Equipment 3 to 15 years
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 December 31 323,811 597,753 113,293 91,119 667,285 539,626 Increase / (decrease) $ (273,942 ) $ 370,215 $ 22,174 $ 2,740 $ 127,659 $ 102,339
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. Year Ended December 31, 2018 2017 2016 Numerator: (In thousands) Net income attributable to MGM Resorts International $ 466,772 $ 1,952,052 $ 1,100,408 Adjustment related to redeemable noncontrolling interests (21,326 ) (18,363 ) (28 ) Net income available to common stockholders - basic 445,446 1,933,689 1,100,380 Potentially dilutive effect due to MGP and MGM China stock compensation plans (206 ) (268 ) (51 ) Net income attributable to common stockholders - diluted $ 445,240 $ 1,933,421 $ 1,100,329 Denominator: Weighted-average common shares outstanding basic 544,253 572,253 568,134 Potential dilution from share-based awards 5,283 6,542 5,183 Weighted-average common and common equivalent shares - diluted 549,536 578,795 573,317 Antidilutive share-based awards excluded from the calculation of diluted earnings per share 2,668 2,601 4,207

Accounts Receivable, Net (Table

Accounts Receivable, Net (Tables)	12 Months Ended
	Dec. 31, 2018
Receivables [Abstract]
Schedule of Accounts Receivable, Net	Accounts receivable, net consisted of the following: December 31, 2018 2017 (In thousands) Casino $ 419,127 $ 343,869 Hotel 154,707 146,931 Other 174,147 144,044 747,981 634,844 Less: Allowance for doubtful accounts (90,775 ) (92,571 ) $ 657,206 $ 542,273

Acquisition (Tables)

Acquisition (Tables)	12 Months Ended
	Dec. 31, 2018
Business Combinations [Abstract]
Schedule of Purchase Price Allocation	The following table sets forth the preliminary purchase price allocation as of July 6, 2018 (in thousands): Fair value of assets acquired and liabilities assumed: Property and equipment $ 792,807 Cash and cash equivalents 35,831 Racing and gaming license 228,000 Customer list 25,000 Goodwill 17,915 Other assets 9,598 Other liabilities (38,786 ) $ 1,070,365
Schedule of Unaudited Pro Forma Consolidated Financial Information	The following unaudited pro forma consolidated financial information for the Company has been prepared assuming the Company’s acquisition of its controlling interest has occurred as of January 1, 2015 and excludes the $430 million gain discussed above. The unaudited pro forma financial information below is not necessarily indicative of either future results of operations or results that might have been achieved had the acquisition been consummated as of January 1, 2015. Year Ended December 31, 2016 (In thousands, except per share data) (unaudited) Net revenues $ 9,963,322 Net income attributable to MGM Resorts International 818,247 Basis net income per share $ 1.44 Diluted net income per share $ 1.43

Property and Equipment, Net (Ta

Property and Equipment, Net (Tables)	12 Months Ended
	Dec. 31, 2018
Property Plant And Equipment [Abstract]
Schedule of Property and Equipment, Net	Property and equipment, net consisted of the following: December 31, 2018 2017 (In thousands) Land $ 6,923,769 $ 6,531,701 Buildings, building improvements and land improvements 16,437,695 12,245,950 Furniture, fixtures and equipment 6,064,330 5,157,363 Construction in progress 321,944 3,950,635 29,747,738 27,885,649 Less: Accumulated depreciation (9,017,850 ) (8,250,190 ) $ 20,729,888 $ 19,635,459

Investments in and Advances t_2

Investments in and Advances to Unconsolidated Affiliates (Tables)	12 Months Ended
	Dec. 31, 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: December 31, 2018 2017 (In thousands) CityCenter Holdings, LLC – CityCenter (50%) $ 589,965 $ 808,220 Elgin Riverboat Resort–Riverboat Casino – Grand Victoria (50% at December 31, 2017) — 124,342 Las Vegas Arena Company, LLC (42.5%) 73,540 76,619 Other 69,362 24,116 $ 732,867 $ 1,033,297
Schedule of Share of Net Income From Unconsolidated Affiliates	The Company recorded its share of income from unconsolidated affiliates, including adjustments for basis differences, as follows: Year Ended December 31, 2018 2017 2016 (In thousands) Income from unconsolidated affiliates $ 147,690 $ 146,222 $ 528,287 Preopening and start-up expenses (3,321 ) — (3,168 ) Non-operating items from unconsolidated affiliates (47,827 ) (34,751 ) (53,139 ) $ 96,542 $ 111,471 $ 471,980
Schedule of Share of Income From Unconsolidated Affiliates	The following table summarizes information related to the Company’s share of income from unconsolidated affiliates: Year Ended December 31, 2018 2017 2016 (In thousands) CityCenter $ 138,383 $ 133,401 $ 445,853 Borgata (through July 31, 2016) — — 61,169 Other 9,307 12,821 21,265 $ 147,690 $ 146,222 $ 528,287
Summarized Balance Sheet Information	Summarized balance sheet information is as follows: December 31, 2018 2017 (In thousands) Current assets $ 363,755 $ 708,910 Property and other assets, net and other long-term assets 6,167,853 6,280,474 Current liabilities 347,710 348,232 Long-term debt and other long-term obligations 1,763,290 1,557,633
Summarized Income Statement Information	Summarized results of operations are as follows: Year Ended December 31, 2018 2017 2016 (In thousands) Net revenues $ 1,277,745 $ 1,227,733 $ 1,160,606 Operating income 185,368 200,109 13,979 Income (loss) from continuing operations 97,091 137,226 (50,376 ) Net income (loss) (37,911 ) 131,683 349,716
Tabular Disclosure of Differences between Share of Venture-Level Equity and Investment Balances	Differences between the Company’s share of venture-level equity and investment balances are as follows: December 31, 2018 2017 (In thousands) Venture-level equity attributable to the Company $ 2,347,103 $ 2,659,780 Adjustment to CityCenter equity upon contribution of net assets by MGM Resorts International (1) (514,592 ) (532,501 ) CityCenter capitalized interest (2) 186,830 206,065 CityCenter completion guarantee (3) 274,685 322,703 CityCenter deferred gain (4) (212,276 ) (219,561 ) CityCenter capitalized interest on sponsor notes (5) (36,500 ) (40,258 ) Other-than-temporary impairments of CityCenter investment (6) (1,352,118 ) (1,504,161 ) Acquisition fair value adjustments net of other-than-temporary impairments of Grand Victoria investment (7) — 99,619 Other adjustments 39,735 41,611 $ 732,867 $ 1,033,297 (1) Primarily relates to land and fixed assets. (2) Relates to interest capitalized on the Company’s investment balance during development and construction stages. (3) Created by contributions to CityCenter under the completion guarantee recognized as equity contributions by CityCenter split between the members. (4) Relates to a deferred gain on assets contributed to CityCenter upon formation of CityCenter. (5) Relates to interest on the sponsor notes capitalized by CityCenter during development. Such sponsor notes were converted to equity in 2013. (6) The impairment of the Company’s CityCenter investment includes $352 million and $379 million of impairments allocated to land as of December 31, 2018 and December 31, 2017, respectively. (7) Relates to indefinite-lived gaming license rights for Grand Victoria and other-than-temporary impairments of the Company’s investment in Grand Victoria.

Goodwill and Other Intangible_2

Goodwill and Other Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2018
Goodwill And Intangible Assets Disclosure [Abstract]
Schedule of Goodwill and Other Intangible Assets	Goodwill and other intangible assets consisted of the following: December 31, 2018 2017 Goodwill: (In thousands) Las Vegas Strip Resorts $ 70,975 $ 70,975 Regional Operations 386,892 386,892 Corporate and other 17,915 — MGM China 1,345,610 1,348,664 $ 1,821,392 $ 1,806,531 Indefinite-lived intangible assets: Detroit development rights $ 98,098 $ 98,098 Northfield racing and gaming licenses 228,000 — Trademarks, license rights and other 312,022 312,022 Total indefinite-lived intangible assets 638,120 410,120 Finite-lived intangible assets: MGM Grand Paradise gaming subconcession 4,468,766 4,478,911 Less: Accumulated amortization (1,342,561 ) (1,180,908 ) 3,126,205 3,298,003 MGM Macau land concession 83,885 84,076 Less: Accumulated amortization (32,035 ) (27,870 ) 51,850 56,206 MGM China customer lists 127,679 127,969 Borgata customer list 22,000 22,000 Northfield customer list 25,000 — Less: Accumulated amortization (151,465 ) (145,569 ) 23,214 4,400 Finite-lived gaming licenses and other intangible assets 136,127 136,127 Less: Accumulated amortization (31,053 ) (26,896 ) 105,074 109,231 Total finite-lived intangible assets, net 3,306,343 3,467,840 Total other intangible assets, net $ 3,944,463 $ 3,877,960
Summary of Changes in Company's Goodwill by Reportable Segment	Goodwill . A summary of changes in the Company’s goodwill by reportable segment is as follows for 2018 and 2017: 2018 Balance at January 1 Acquisitions Currency exchange Balance at December 31 (In thousands) Goodwill, net by segment: Las Vegas Strip Resorts $ 70,975 $ — $ — $ 70,975 Regional Operations 386,892 — — 386,892 MGM China 1,348,664 — (3,054 ) 1,345,610 Corporate and other — 17,915 — 17,915 $ 1,806,531 $ 17,915 $ (3,054 ) $ 1,821,392 2017 Balance at January 1 Acquisitions Currency exchange Balance at December 31 (In thousands) Goodwill, net by segment: Las Vegas Strip Resorts $ 70,975 $ — $ — $ 70,975 Regional Operations 386,892 — — 386,892 MGM China 1,359,252 — (10,588 ) 1,348,664 $ 1,817,119 $ — $ (10,588 ) $ 1,806,531
Schedule of Estimated Future Amortization	As of December 31, 2018, estimated future amortization is as follows: Years ending December 31, (In thousands) 2019 $ 179,944 2020 179,944 2021 179,944 2022 179,944 2023 179,761 Thereafter 2,406,806 $ 3,306,343

Other Accrued Liabilities (Tabl

Other Accrued Liabilities (Tables)	12 Months Ended
	Dec. 31, 2018
Other Liabilities Disclosure [Abstract]
Schedule of Other Accrued Liabilities	Other accrued liabilities consisted of the following: 2018 2017 (In thousands) Contract and contract-related liabilities: Outstanding chip liability $ 323,811 $ 597,753 Loyalty program obligations 113,293 91,119 Casino front money 342,941 303,950 Advance deposits and ticket sales 221,003 149,698 Unpaid wagers and other 103,341 85,978 Other accrued liabilities: Payroll and related 518,892 483,101 Taxes, other than income taxes 235,160 170,639 MGP Dividend 31,732 29,777 Other 260,881 202,620 $ 2,151,054 $ 2,114,635

Long-Term Debt (Tables)

Long-Term Debt (Tables)	12 Months Ended
	Dec. 31, 2018
Debt Disclosure [Abstract]
Schedule of Long-Term Debt	Long-term debt consisted of the following: December 31, 2018 2017 (In thousands) Senior credit facility $ 750,000 $ 372,500 Operating Partnership senior credit facility 2,819,125 2,091,375 MGM China credit facility 2,433,562 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 15,253,239 13,018,276 Less: Premiums, discounts, and unamortized debt issuance costs, net (121,823 ) (109,182 ) 15,131,416 12,909,094 Less: Current portion (43,411 ) (158,042 ) $ 15,088,005 $ 12,751,052
Schedule of Interest Expense, Net	Interest expense, net consisted of the following: Year Ended December 31, 2018 2017 2016 (In thousands) Total interest incurred $ 821,229 $ 779,855 $ 814,731 Interest capitalized (51,716 ) (111,110 ) (119,958 ) $ 769,513 $ 668,745 $ 694,773
Schedule of Maturities of Long-Term Debt	Maturities of long-term debt. The maturities of the principal amount of the Company’s long-term debt as of December 31, 2018 are as follows: Years ending December 31, (In thousands) 2019 $ 1,272,734 2020 1,966,109 2021 1,716,109 2022 2,306,237 2023 2,884,875 Thereafter 5,107,175 $ 15,253,239

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Schedule of Income (Loss) Before Taxes for Domestic and Foreign Operations	Income (loss) before income taxes for domestic and foreign operations consisted of the following: Year Ended December 31, 2018 2017 2016 (In thousands) Domestic operations $ 660,832 $ 747,090 $ 984,095 Foreign operations (26,826 ) 213,700 273,494 $ 634,006 $ 960,790 $ 1,257,589
Schedule of Benefit (Provision) for Income Taxes Attributable to Income (Loss) Before Income Taxes	The benefit (provision) for income taxes attributable to income (loss) before income taxes is as follows: Year Ended December 31, 2018 2017 2016 Federal: (In thousands) Current $ 11,991 $ (120,980 ) $ (97,502 ) Deferred (excluding separate components) (143,468 ) 204,713 (124,625 ) Deferred – — 987,942 — Deferred – (19,753 ) 101,443 222,688 Other noncurrent 576 1,356 3,608 Benefit (provision) for federal income taxes (150,654 ) 1,174,474 4,169 State: Current (12,564 ) (6,798 ) 4,069 Deferred (excluding separate components) (12,731 ) (25,233 ) 2,313 Deferred – (29,490 ) 44,242 (16,024 ) Deferred – 41,068 (40,078 ) 23,058 Other noncurrent (1,334 ) (3,876 ) (2,901 ) Benefit (provision) for state income taxes (15,051 ) (31,743 ) 10,515 Foreign: Current (2,037 ) (470 ) (2,015 ) Deferred (excluding separate components) 63,827 (40,653 ) (34,425 ) Deferred – 30,574 4,688 2,988 Deferred – 23,229 21,098 (2,975 ) Benefit (provision) for foreign income taxes 115,593 (15,337 ) (36,427 ) $ (50,112 ) $ 1,127,394 $ (21,743 )
Schedule of Reconciliation of the Federal Income Tax Statutory Rate and the Company's Effective Tax Rate	A reconciliation of the federal income tax statutory rate and the Company’s effective tax rate is as follows: Year Ended December 31, 2018 2017 2016 Federal income tax statutory rate 21.0 % 35.0 % 35.0 % Change in enacted rates — (102.7 ) — Non-controlling interest (2.4 ) (1.5 ) (0.9 ) Foreign jurisdiction income/losses taxed at other than U.S. statutory rate (9.5 ) (9.2 ) (3.8 ) Repatriation of foreign earnings — 35.4 5.2 Foreign tax credit — (70.3 ) (10.6 ) Federal valuation allowance 3.1 (10.6 ) (17.7 ) Macau dividend tax (6.4 ) 4.2 — State taxes, net 1.9 2.4 — General business credits (2.9 ) (1.0 ) (0.7 ) Stock-based compensation (1.2 ) (2.1 ) — Gain on Borgata transaction — — (5.4 ) Non-deductible employee dining facility costs 1.4 — — Permanent and other items 2.9 3.1 0.6 7.9 % (117.3 )% 1.7 %
Schedule of Tax-Effected Components of the Company's Net Deferred Tax Liability	The tax-effected components of the Company’s net deferred tax liability are as follows: December 31, 2018 2017 Deferred tax assets – federal and state: (In thousands) Bad debt reserve $ 23,497 $ 25,432 Deferred compensation 5,950 5,232 Net operating loss carryforward 23,406 46,702 Accruals, reserves and other 88,139 94,904 Investments in unconsolidated affiliates 83,130 84,188 Stock-based compensation 20,581 24,390 Tax credits 2,926,996 3,045,138 3,171,699 3,325,986 Less: Valuation allowance (2,449,582 ) (2,462,272 ) 722,117 863,714 Deferred tax assets – foreign: Bad debt reserve 1,372 821 Net operating loss carryforward 107,308 76,909 Accruals, reserves and other 18,603 — Property and equipment 998 — Stock-based compensation 5,409 4,423 133,690 82,153 Less: Valuation allowance (28,121 ) (51,466 ) 105,569 30,687 Total deferred tax assets $ 827,686 $ 894,401 Deferred tax liabilities – federal and state: Property and equipment $ (1,729,786 ) $ (1,670,704 ) Long-term debt (3,141 ) (48,809 ) Intangibles (90,758 ) (79,167 ) (1,823,685 ) (1,798,680 ) Deferred tax liabilities – foreign: Accruals, reserves and other — (26,657 ) Property and equipment — (16,277 ) Intangibles (346,539 ) (348,162 ) (346,539 ) (391,096 ) Total deferred tax liability $ (2,170,224 ) $ (2,189,776 ) Net deferred tax liability $ (1,342,538 ) $ (1,295,375 )
Schedule of Reconciliation of the Beginning and Ending Amounts of Gross Unrecognized Tax Benefits	A reconciliation of the beginning and ending amounts of gross unrecognized tax benefits is as follows: Year Ended December 31, 2018 2017 2016 (In thousands) Gross unrecognized tax benefits at January 1 $ 18,588 $ 14,026 $ 13,724 Gross increases - prior period tax positions 5,345 — — Gross decreases - prior period tax positions (957 ) (2,280 ) (3,375 ) Gross increases - current period tax positions 1,488 6,842 3,677 Gross unrecognized tax benefits at December 31 $ 24,464 $ 18,588 $ 14,026

Commitments and Contingencies (

Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2018
Commitments And Contingencies Disclosure [Abstract]
Schedule of Future Minimum Lease Payments Required to be Made under Non-Cancellable Operating Leases and Capital Leases	At December 31, 2018, the Company was obligated under non-cancellable operating leases to make future minimum lease payments as follows: Years ending December 31, (In thousands) 2019 $ 106,643 2020 83,150 2021 62,437 2022 47,036 2023 45,157 Thereafter 1,357,611 Total minimum lease payments $ 1,702,034

Stockholders' Equity (Tables)

Stockholders' Equity (Tables)	12 Months Ended
	Dec. 31, 2018
Equity [Abstract]
Summary of Changes in Accumulated Balance of Other Comprehensive Income	The following is a summary of the changes in the accumulated balance of other comprehensive income (loss) attributable to MGM Resorts International: Currency Translation Adjustments Cash Flow Hedges Other Total (In thousands) Balance, January 1, 2017 $ 12,545 $ 1,434 $ 1,074 $ 15,053 Other comprehensive income (loss) before reclassifications (43,188 ) (1,221 ) 98 (44,311 ) Amounts reclassified from accumulated other comprehensive income (loss) to interest expense — 9,216 — 9,216 Other comprehensive income (loss), net of tax (43,188 ) 7,995 98 (35,095 ) Other comprehensive income (loss) attributable to noncontrolling interest 19,193 (2,761 ) — 16,432 Balance, December 31, 2017 (11,450 ) 6,668 1,172 (3,610 ) Other comprehensive income (loss) before reclassifications (13,022 ) 4,706 — (8,316 ) Amounts reclassified from accumulated other comprehensive income (loss) to interest expense — (1,130 ) — (1,130 ) Other comprehensive income (loss), net of tax (13,022 ) 3,576 — (9,446 ) Other comprehensive income (loss) attributable to noncontrolling interest 5,600 (1,100 ) — 4,500 Balance, December 31, 2018 $ (18,872 ) $ 9,144 $ 1,172 $ (8,556 )
Summary of Net Income Attributable to and Transfers from Noncontrolling Interest	The following is a summary of net income attributable to MGM Resorts International and transfers to noncontrolling interest: For the Years Ended December 31, 2018 2017 (In thousands) Net income attributable to MGM Resorts International $ 466,772 $ 1,952,052 Transfers from/(to) to noncontrolling interest: MGP Class A share issuance — 35,138 MGM National Harbor transaction — (12,497 ) Other (5,667 ) (2,889 ) Net transfers from/(to) noncontrolling interest (5,667 ) 19,752 Change from net income attributable to MGM Resorts International and transfers to noncontrolling interest $ 461,105 $ 1,971,804

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	12 Months Ended
	Dec. 31, 2018
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Schedule of Information Related to Intrinsic Value	Intrinsic value. The following table includes information related to the intrinsic value: Year ended December 31, 2018 (In thousands) Share-based awards exercised and RSUs and PSUs vested $ 97,302 Stock options and SARs outstanding 21,563 Stock options and SARs vested and expected to vest 21,547 Stock options and SARs exercisable 19,745
Schedule of Compensation Cost Recognized	Recognition of compensation cost. Compensation cost was recognized as follows: Year Ended December 31, 2018 2017 2016 Compensation cost: (In thousands) Omnibus Plan $ 57,735 $ 49,383 $ 43,661 MGM Growth Properties Omnibus Incentive Plan 2,092 2,568 3,401 MGM China Share Option Plan 10,369 10,571 8,545 Total compensation cost 70,196 62,522 55,607 Less: Reimbursed costs and capitalized cost (1,710 ) (1,398 ) (1,350 ) Compensation cost after reimbursed costs and capitalized cost 68,486 61,124 54,257 Less: Related tax benefit (13,218 ) (18,650 ) (16,782 ) Compensation cost, net of tax benefit $ 55,268 $ 42,474 $ 37,475

Employee Benefit Plans (Tables)

Employee Benefit Plans (Tables)	12 Months Ended
	Dec. 31, 2018
Compensation And Retirement Disclosure [Abstract]
Table Outlining Company's Participation in Pension Plans	The Company’s participation in these plans is presented below. EIN/Pension Pension Protection Act Zone Status (2) FIP/RP Contributions by the Company (in thousands) (4) Surcharge Expiration Dates of Collective Bargaining Pension Fund (1) Plan Number 2017 2016 Status (3) 2018 2017 2016 Imposed Agreements Southern Nevada Culinary and Bartenders Pension Plan 88-6016617/001 Green Green No $ 47,825 $ 45,297 $ 44,001 No 5/31/2019; 5/31/2023 (5) Legacy Plan of the National Retirement Fund (NRF) (6) 13-6130178/001 Red Red Yes $ 9,794 $ 9,416 $ 3,788 Yes 2/29/2020 (1) The Company was listed in the plan's Form 5500 as providing more than 5% of the total contributions for the plan years 2017 and 2016 for the Southern Nevada Culinary and Bartenders Pension Plan and for the plan year 2016 for the NRF. At the date the financial statements were issued, Form 5500 was not available for the plan year 2018. (2) The zone status is based on information that the Company received from the plan and is certified by the plan's actuary. Plans in the red zone are generally less than 65% funded (critical status) and plans in the green zone are at least 80% funded. (3) Indicates plans for which a Financial Improvement Plan (FIP) or a Rehabilitation Plan (RP) is either pending or has been implemented. (4) There have been no significant changes that affect the comparability of contributions, other than those for the UNITE HERE Retirement Fund (“UHF”), formally known as the Legacy Plan of the National Retirement Fund (“NRF”) prior to January 1, 2018, which reflect the period from acquisition of Borgata of August 1, 2016 through December 31, 2016 within the 2016 column and a full-year of contributions within the 2018 and 2017 columns. (5) The Company is party to ten collective bargaining agreements (CBA) that require contributions with the Local Joint Executive Board of Las Vegas, which is made up of the Culinary and Bartenders Unions. The agreements between CityCenter Hotel Casino, LLC, Bellagio, Mandalay Corp., and MGM Grand Hotel, LLC are the most significant because more than half of the Company’s employee participants in this plan are covered by those four agreements. (6) In December 2017, the Pension Benefit Guaranty Corporation approved the spin-off of the UNITE HERE portion of the NRF to the plan of a newly-formed Legacy Plan of the UNITE HERE Retirement Fund. As a result of the spin-off, the pension liabilities as well as certain assets of the plan were transferred to the new Plan. The terms of the Plan are identical to the NRF. The spin-off was effective as of January 1, 2018.

Property Transactions, Net (Tab

Property Transactions, Net (Tables)	12 Months Ended
	Dec. 31, 2018
Property Plant And Equipment [Abstract]
Schedule of Property Transactions, Net	Property transactions, net consisted of the following: Year Ended December 31, 2018 2017 2016 (In thousands) Gain on sale of Grand Victoria $ (44,703 ) $ — $ — Other property transactions, net 53,850 50,279 17,078 $ 9,147 $ 50,279 $ 17,078

Segment Information (Tables)

Segment Information (Tables)	12 Months Ended
	Dec. 31, 2018
Segment Reporting [Abstract]
Schedule of Segment Information	The following tables present the Company’s segment information. As a result of the change in reportable segments described above, we have recast previously reported segment information to conform to the current presentation in the following tables: Year Ended December 31, 2018 2017 2016 (In thousands) Net Revenues Las Vegas Strip Resorts Casino $ 1,407,733 $ 1,436,830 $ 1,394,820 Rooms 1,776,029 1,778,869 1,762,850 Food and beverage 1,402,378 1,410,496 1,432,717 Entertainment, retail and other 1,130,532 1,119,928 1,074,307 5,716,672 5,746,123 5,664,694 Regional Operations Casino 2,026,925 1,834,803 1,017,857 Rooms 318,017 319,049 182,809 Food and beverage 428,934 410,143 235,383 Entertainment, retail and other 160,645 145,725 84,108 2,934,521 2,709,720 1,520,157 MGM China Casino 2,195,144 1,741,635 1,695,023 Rooms 118,527 54,824 57,367 Food and beverage 114,862 51,330 51,237 Entertainment, retail and other 21,424 10,371 8,331 2,449,957 1,858,160 1,811,958 Reportable segment net revenues 11,101,150 10,314,003 8,996,809 Corporate and other 661,946 483,476 481,460 $ 11,763,096 $ 10,797,479 $ 9,478,269 Adjusted Property EBITDA Las Vegas Strip Resorts $ 1,705,479 $ 1,780,600 $ 1,661,921 Regional Operations 759,096 731,916 399,701 MGM China 568,294 535,524 529,281 Reportable segment Adjusted Property EBITDA 3,032,869 3,048,040 2,590,903 Other operating income (expense) Corporate and other (224,800 ) (213,908 ) 203,193 NV Energy exit expense — 40,629 (139,335 ) Preopening and start-up expenses (151,392 ) (118,475 ) (140,075 ) Property transactions, net (9,147 ) (50,279 ) (17,078 ) Gain on Borgata transaction — — 430,118 Depreciation and amortization (1,178,044 ) (993,480 ) (849,527 ) Operating income 1,469,486 1,712,527 2,078,199 Non-operating income (expense) Interest expense, net of amounts capitalized (769,513 ) (668,745 ) (694,773 ) Non-operating items from unconsolidated affiliates (47,827 ) (34,751 ) (53,139 ) Other, net (18,140 ) (48,241 ) (72,698 ) (835,480 ) (751,737 ) (820,610 ) Income before income taxes 634,006 960,790 1,257,589 Benefit (provision) for income taxes (50,112 ) 1,127,394 (21,743 ) Net income 583,894 2,088,184 1,235,846 Less: Net income attributable to noncontrolling interests (117,122 ) (136,132 ) (135,438 ) Net income attributable to MGM Resorts International $ 466,772 $ 1,952,052 $ 1,100,408 December 31, 2018 2017 2016 Total assets: (In thousands) Las Vegas Strip Resorts $ 11,783,736 $ 11,648,168 $ 11,650,747 Regional Operations 5,751,826 4,780,717 4,800,714 MGM China 9,093,307 9,461,535 8,443,411 Reportable segment total assets 26,628,869 25,890,420 24,894,872 Corporate and other 3,666,586 3,339,746 3,334,724 Eliminated in consolidation (84,749 ) (70,124 ) (55,196 ) $ 30,210,706 $ 29,160,042 $ 28,174,400 December 31, 2018 2017 2016 Property and equipment, net: (In thousands) Las Vegas Strip Resorts $ 10,605,454 $ 10,568,296 $ 10,568,317 Regional Operations 4,503,104 3,752,528 3,785,654 MGM China 3,818,460 3,827,391 2,857,626 Reportable segment property and equipment, net 18,927,018 18,148,215 17,211,597 Corporate and other 1,887,619 1,557,368 1,268,622 Eliminated in consolidation (84,749 ) (70,124 ) (55,196 ) $ 20,729,888 $ 19,635,459 $ 18,425,023 Year Ended December 31, 2018 2017 2016 Capital expenditures: (In thousands) Las Vegas Strip Resorts $ 501,044 $ 419,983 $ 288,526 Regional Operations 72,865 66,628 29,425 MGM China 390,212 923,346 984,355 Reportable segment capital expenditures 964,121 1,409,957 1,302,306 Corporate and other 537,347 469,053 973,446 Eliminated in consolidation (14,625 ) (14,928 ) (13,279 ) $ 1,486,843 $ 1,864,082 $ 2,262,473

Condensed Consolidating Finan_2

Condensed Consolidating Financial Information (Tables)	12 Months Ended
	Dec. 31, 2018
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Schedule of Condensed Consolidating Balance Sheet Information	December 31, 2018 Non-Guarantor Subsidiaries Parent Guarantor Subsidiaries MGP Other Elimination Consolidated (In thousands) Current assets $ 304,741 $ 1,178,696 $ 78,222 $ 972,820 $ (7,701 ) $ 2,526,778 Property and equipment, net — 13,564,979 10,526,520 6,392,014 (9,753,625 ) 20,729,888 Investments in subsidiaries 22,419,282 3,401,031 — — (25,820,313 ) — Investments in the MGP Operating Partnership — 3,434,602 — 831,494 (4,266,096 ) — Investments in and advances to unconsolidated affiliates — 678,748 — 29,119 25,000 732,867 Intercompany accounts — 7,135,263 — — (7,135,263 ) — Other non-current assets 67,214 917,537 346,565 4,932,872 (43,015 ) 6,221,173 $ 22,791,237 $ 30,310,856 $ 10,951,307 $ 13,158,319 $ (47,001,013 ) $ 30,210,706 Current liabilities $ 154,484 $ 1,617,675 $ 189,247 $ 1,224,752 $ (237,276 ) $ 2,948,882 Intercompany accounts 6,932,325 — 307 202,631 (7,135,263 ) — Deferred income taxes, net 1,097,654 — 33,634 240,970 (29,720 ) 1,342,538 Long-term debt, net 8,055,472 570 4,666,949 2,365,014 — 15,088,005 Other long-term obligations 39,019 7,210,897 215,664 2,247,584 (9,453,924 ) 259,240 Total liabilities 16,278,954 8,829,142 5,105,801 6,280,951 (16,856,183 ) 19,638,665 Redeemable noncontrolling interests — — — 102,250 — 102,250 MGM Resorts International stockholders' equity 6,512,283 21,481,714 4,279,535 4,383,581 (30,144,830 ) 6,512,283 Noncontrolling interests — — 1,565,971 2,391,537 — 3,957,508 Total stockholders' equity 6,512,283 21,481,714 5,845,506 6,775,118 (30,144,830 ) 10,469,791 $ 22,791,237 $ 30,310,856 $ 10,951,307 $ 13,158,319 $ (47,001,013 ) $ 30,210,706 December 31, 2017 Non-Guarantor Subsidiaries Parent Guarantor 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 Information	CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS AND COMPREHENSIVE INCOME INFORMATION Year Ended December 31, 2018 Non-Guarantor Subsidiaries Parent Guarantor Subsidiaries MGP Other Elimination Consolidated (In thousands) Net revenues $ — $ 7,647,304 $ 1,002,444 $ 3,983,575 $ (870,227 ) $ 11,763,096 Equity in subsidiaries' earnings 1,216,482 116,676 — — (1,333,158 ) — Expenses Casino and hotel operations 11,130 4,350,634 88,053 2,491,007 (21,949 ) 6,918,875 General and administrative 9,945 1,238,461 96,607 495,015 (75,390 ) 1,764,638 Corporate expense 156,503 216,318 48,675 21,317 (23,609 ) 419,204 Preopening and start-up expenses — 26,100 — 125,292 — 151,392 Property transactions, net — (15,955 ) 20,319 25,033 (20,250 ) 9,147 Depreciation and amortization — 622,552 273,031 543,606 (261,145 ) 1,178,044 177,578 6,438,110 526,685 3,701,270 (402,343 ) 10,441,300 Income (loss) from unconsolidated affiliates — 148,866 — (1,176 ) — 147,690 Operating income 1,038,904 1,474,736 475,759 281,129 (1,801,042 ) 1,469,486 Interest expense, net of amounts capitalized (480,985 ) (510 ) (215,532 ) (72,486 ) — (769,513 ) Other, net 63,722 (444,897 ) (4,690 ) (187,786 ) 507,684 (65,967 ) Income before income taxes 621,641 1,029,329 255,537 20,857 (1,293,358 ) 634,006 Benefit (provision) for income taxes (154,869 ) — (10,835 ) 115,592 — (50,112 ) Net income 466,772 1,029,329 244,702 136,449 (1,293,358 ) 583,894 Less: Net income attributable to noncontrolling interests — — (67,065 ) (50,057 ) — (117,122 ) Net income attributable to MGM Resorts International $ 466,772 $ 1,029,329 $ 177,637 $ 86,392 $ (1,293,358 ) $ 466,772 Net income $ 466,772 $ 1,029,329 $ 244,702 $ 136,449 $ (1,293,358 ) $ 583,894 Other comprehensive income (loss), net of tax: Foreign currency translation adjustment (7,422 ) (7,422 ) — (13,022 ) 14,844 (13,022 ) Unrealized gain on cash flow hedges 2,476 — 4,128 — (3,028 ) 3,576 Other comprehensive income (loss) (4,946 ) (7,422 ) 4,128 (13,022 ) 11,816 (9,446 ) Comprehensive income 461,826 1,021,907 248,830 123,427 (1,281,542 ) 574,448 Less: Comprehensive income attributable to noncontrolling interests — — (68,165 ) (44,457 ) — (112,622 ) Comprehensive income attributable to MGM Resorts International $ 461,826 $ 1,021,907 $ 180,665 $ 78,970 $ (1,281,542 ) $ 461,826 CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS AND COMPREHENSIVE INCOME INFORMATION Year Ended December 31, 2017 Non-Guarantor Subsidiaries Parent Guarantor Subsidiaries MGP Other Elimination Consolidated (In thousands) Net revenues $ — $ 7,649,990 $ 765,695 $ 3,151,304 $ (769,510 ) $ 10,797,479 Equity in subsidiaries' earnings 1,391,725 156,081 — — (1,547,806 ) — Expenses Casino and hotel operations 10,784 4,262,212 — 1,923,942 (3,816 ) 6,193,122 General and administrative 8,742 1,180,989 84,348 369,844 (84,348 ) 1,559,575 Corporate expense 127,092 200,801 34,085 (515 ) (4,591 ) 356,872 NV Energy exit expense — (40,629 ) — — — (40,629 ) Preopening and start-up expenses — 8,258 — 110,217 — 118,475 Property transactions, net — 43,985 34,022 6,294 (34,022 ) 50,279 Depreciation and amortization — 649,676 260,455 343,804 (260,455 ) 993,480 146,618 6,305,292 412,910 2,753,586 (387,232 ) 9,231,174 Income (loss) from unconsolidated affiliates — 147,234 — (1,012 ) — 146,222 Operating income 1,245,107 1,648,013 352,785 396,706 (1,930,084 ) 1,712,527 Interest expense, net of amounts capitalized (466,907 ) (982 ) (184,175 ) (16,681 ) — (668,745 ) Other, net 26,215 (402,602 ) 2,286 (142,997 ) 434,106 (82,992 ) Income before income taxes 804,415 1,244,429 170,896 237,028 (1,495,978 ) 960,790 Benefit (provision) for income taxes 1,147,637 — (4,906 ) (15,337 ) — 1,127,394 Net income 1,952,052 1,244,429 165,990 221,691 (1,495,978 ) 2,088,184 Less: Net income attributable to noncontrolling interests — — (41,775 ) (94,357 ) — (136,132 ) Net income attributable to MGM Resorts International $ 1,952,052 $ 1,244,429 $ 124,215 $ 127,334 $ (1,495,978 ) $ 1,952,052 Net income $ 1,952,052 $ 1,244,429 $ 165,990 $ 221,691 $ (1,495,978 ) $ 2,088,184 Other comprehensive income (loss), net of tax: Foreign currency translation adjustment (23,995 ) (23,995 ) — (43,188 ) 47,990 (43,188 ) Unrealized gain on cash flow hedges 5,234 — 9,782 — (7,021 ) 7,995 Other comprehensive income (loss) (18,761 ) (23,995 ) 9,782 (43,188 ) 40,969 (35,193 ) Comprehensive income 1,933,291 1,220,434 175,772 178,503 (1,455,009 ) 2,052,991 Less: Comprehensive income attributable to noncontrolling interests — — (44,536 ) (75,164 ) — (119,700 ) Comprehensive income attributable to MGM Resorts International $ 1,933,291 $ 1,220,434 $ 131,236 $ 103,339 $ (1,455,009 ) $ 1,933,291 CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS AND COMPREHENSIVE INCOME INFORMATION Year Ended December 31, 2016 Non-Guarantor Subsidiaries Parent Guarantor Subsidiaries MGP Other Elimination Consolidated (In thousands) Net revenues $ — $ 7,050,893 $ 467,548 $ 2,430,795 $ (470,967 ) $ 9,478,269 Equity in subsidiaries' earnings 1,779,119 174,587 — — (1,953,706 ) — Expenses Casino and hotel operations 9,063 4,027,602 — 1,487,975 (3,419 ) 5,521,221 General and administrative 6,834 1,137,027 68,063 214,839 (48,229 ) 1,378,534 Corporate expense 131,938 160,887 20,360 (194 ) (286 ) 312,705 NV Energy exit expense — 139,335 — — — 139,335 Preopening and start-up expenses — 8,775 — 131,300 — 140,075 Property transactions, net — 16,449 4,684 (246 ) (3,809 ) 17,078 Gain on Borgata transaction — (430,118 ) — — — (430,118 ) Depreciation and amortization — 524,123 220,667 261,730 (156,993 ) 849,527 147,835 5,584,080 313,774 2,095,404 (212,736 ) 7,928,357 Income (loss) from unconsolidated affiliates — 528,605 — (318 ) — 528,287 Operating income 1,631,284 2,170,005 153,774 335,073 (2,211,937 ) 2,078,199 Interest expense, net of amounts capitalized (562,536 ) (1,500 ) (115,438 ) (15,299 ) — (694,773 ) Other, net (7,864 ) (324,141 ) (726 ) (93,145 ) 300,039 (125,837 ) Income before income taxes 1,060,884 1,844,364 37,610 226,629 (1,911,898 ) 1,257,589 Benefit (provision) for income taxes 39,524 (22,579 ) (2,264 ) (36,424 ) — (21,743 ) Net income 1,100,408 1,821,785 35,346 190,205 (1,911,898 ) 1,235,846 Less: Net income attributable to noncontrolling interests — — (29,938 ) (105,500 ) — (135,438 ) Net income attributable to MGM Resorts International $ 1,100,408 $ 1,821,785 $ 5,408 $ 84,705 $ (1,911,898 ) $ 1,100,408 Net income $ 1,100,408 $ 1,821,785 $ 35,346 $ 190,205 $ (1,911,898 ) $ 1,235,846 Other comprehensive income (loss), net of tax: Foreign currency translation adjustment (1,477 ) (1,477 ) — (2,680 ) 2,954 (2,680 ) Unrealized gain on cash flow hedges 1,434 — 1,879 — (1,434 ) 1,879 Other comprehensive income (loss) (43 ) (1,477 ) 1,879 (2,680 ) 1,520 (801 ) Comprehensive income 1,100,365 1,820,308 37,225 187,525 (1,910,378 ) 1,235,045 Less: Comprehensive income attributable to noncontrolling interests — — (30,383 ) (104,297 ) — (134,680 ) Comprehensive income attributable to MGM Resorts International $ 1,100,365 $ 1,820,308 $ 6,842 $ 83,228 $ (1,910,378 ) $ 1,100,365
Schedule of Condensed Consolidating Statement of Cash Flows Information	CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS INFORMATION Year Ended December 31, 2018 Non-Guarantor Subsidiaries Parent Guarantor Subsidiaries MGP Other Elimination Consolidated (In thousands) Cash flows from operating activities Net cash provided by (used in) operating activities $ (460,117 ) $ 1,271,583 $ 580,207 $ 330,866 $ — $ 1,722,539 Cash flows from investing activities Capital expenditures, net of construction payable — (696,076 ) (1,578 ) (789,189 ) — (1,486,843 ) Dispositions of property and equipment — 25,507 — 105 — 25,612 Proceeds from sale of business units and investment in unconsolidated affiliate — 163,616 — — — 163,616 Acquisition of Northfield, net of cash acquired — — (1,034,534 ) — — (1,034,534 ) Investments in and advances to unconsolidated affiliates — (56,295 ) — — — (56,295 ) Distributions from unconsolidated affiliates in excess of cumulative earnings — 322,631 — — — 322,631 Intercompany accounts — (1,136,764 ) — — 1,136,764 — Other — (13,416 ) — (3,792 ) — (17,208 ) Net cash used in investing activities — (1,390,797 ) (1,036,112 ) (792,876 ) 1,136,764 (2,083,021 ) Cash flows from financing activities Net borrowings under bank credit facilities - maturities of 90 days or less 377,500 — 727,750 137,009 — 1,242,259 Issuance of long-term debt 1,000,000 — — — — 1,000,000 Retirement of senior debentures — (2,265 ) — — — (2,265 ) Debt issuance costs (26,125 ) — (17,490 ) (32,904 ) — (76,519 ) Dividends paid to common shareholders (260,592 ) — — — — (260,592 ) MGP dividends paid to consolidated subsidiaries — — (333,192 ) — 333,192 — Distributions to noncontrolling interest owners — — (121,069 ) (63,863 ) — (184,932 ) Intercompany accounts 917,760 207,015 — 345,181 (1,469,956 ) — Purchases of common stock (1,283,333 ) — — — — (1,283,333 ) Other (32,225 ) (6,979 ) — (6,180 ) — (45,384 ) Net cash provided by financing activities 692,985 197,771 255,999 379,243 (1,136,764 ) 389,234 Effect of exchange rate on cash — — — (1,985 ) — (1,985 ) Cash and cash equivalents Net increase (decrease) for the period 232,868 78,557 (199,906 ) (84,752 ) — 26,767 Balance, beginning of period 26,870 311,044 259,722 902,359 — 1,499,995 Balance, end of period $ 259,738 $ 389,601 $ 59,816 $ 817,607 $ — $ 1,526,762 CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS INFORMATION Year Ended December 31, 2017 Non-Guarantor Subsidiaries Parent Guarantor Subsidiaries MGP Other Elimination Consolidated (In thousands) Cash flows from operating activities Net cash provided by (used in) operating activities $ (584,252 ) $ 1,152,083 $ 482,578 $ 1,156,002 $ — $ 2,206,411 Cash flows from investing activities Capital expenditures, net of construction payable — (482,024 ) (488 ) (1,381,570 ) — (1,864,082 ) Dispositions of property and equipment — 502 — 216 — 718 Acquisition of National Harbor, net of cash acquired — — (462,500 ) — 462,500 — Investments in and advances to unconsolidated affiliates — (16,727 ) — — — (16,727 ) Distributions from unconsolidated affiliates in excess of cumulative earnings — 301,211 — — — 301,211 Intercompany accounts 462,500 (1,186,942 ) — — 724,442 — Other — (1,754 ) — 42 — (1,712 ) Net cash provided by (used in) investing activities 462,500 (1,385,734 ) (462,988 ) (1,381,312 ) 1,186,942 (1,580,592 ) Cash flows from financing activities Net borrowings (repayments) under bank credit facilities - maturities of 90 days or less 122,500 — (466,875 ) 359,376 — 15,001 Issuance of long-term debt — — 350,000 — — 350,000 Retirement of senior notes (502,669 ) — — — — (502,669 ) Debt issuance costs — — (5,598 ) (4,379 ) — (9,977 ) Issuance of MGM Growth Properties Class A shares in public offering — — 404,685 — — 404,685 MGM Growth Properties Class A share issuance costs — — (17,137 ) — — (17,137 ) Dividends paid to common shareholders (252,014 ) — — — — (252,014 ) MGP dividends paid to consolidated subsidiaries — — (290,091 ) — 290,091 — Distributions to noncontrolling interest owners — — (95,344 ) (75,058 ) — (170,402 ) Intercompany accounts 1,042,111 248,626 — 186,296 (1,477,033 ) — Purchases of common stock (327,500 ) — — — — (327,500 ) Other (33,801 ) (11,644 ) — (13,320 ) — (58,765 ) Net cash provided by (used in) financing activities 48,627 236,982 (120,360 ) 452,915 (1,186,942 ) (568,778 ) Effect of exchange rate on cash — — — (3,627 ) — (3,627 ) Cash and cash equivalents Net increase (decrease) for the period (73,125 ) 3,331 (100,770 ) 223,978 — 53,414 Balance, beginning of period 99,995 307,713 360,492 678,381 — 1,446,581 Balance, end of period $ 26,870 $ 311,044 $ 259,722 $ 902,359 $ — $ 1,499,995 CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS INFORMATION Year Ended December 31, 2016 Non-Guarantor Subsidiaries Parent Guarantor Subsidiaries MGP Other Elimination Consolidated (In thousands) Cash flows from operating activities Net cash provided by (used in) operating activities $ (603,136 ) $ 1,313,595 $ 297,781 $ 525,732 $ — $ 1,533,972 Cash flows from investing activities Capital expenditures, net of construction payable — (290,455 ) (138,987 ) (1,833,031 ) — (2,262,473 ) Dispositions of property and equipment — 1,940 — 2,004 — 3,944 Proceeds from partial disposition of investment in unconsolidated affiliates — 15,000 — — — 15,000 Acquisition of Borgata, net of cash acquired — (559,443 ) — — — (559,443 ) Investments in and advances to unconsolidated affiliates — (3,633 ) — — — (3,633 ) Distributions from unconsolidated affiliates in excess of cumulative earnings — 542,097 — — — 542,097 Intercompany accounts — (1,562,442 ) — — 1,562,442 — Other — (7,651 ) — (4,045 ) — (11,696 ) Net cash used in investing activities — (1,864,587 ) (138,987 ) (1,835,072 ) 1,562,442 (2,276,204 ) Cash flows from financing activities Net borrowings (repayments) under bank credit facilities - maturities of 90 days or less (2,016,000 ) 4,094,850 (2,411,600 ) 823,782 — 491,032 Borrowings under bank credit facilities - maturities longer than 90 days 1,845,375 — — — — 1,845,375 Repayments under bank credit facilities - maturities longer than 90 days (1,845,375 ) — — — — (1,845,375 ) Issuance of long-term debt 500,000 — 1,550,000 — — 2,050,000 Retirement of senior notes (2,255,392 ) (2,661 ) — — — (2,258,053 ) Repayment of Borgata credit facility — (583,598 ) — — — (583,598 ) Debt issuance costs (29,871 ) — (77,163 ) (32,550 ) — (139,584 ) Issuance of MGM Growth Properties Class A shares in public offering — — 1,207,500 — — 1,207,500 MGM Growth Properties Class A share issuance costs — — (75,032 ) — — (75,032 ) Acquisition of MGM China shares (100,000 ) — — — — (100,000 ) MGP dividends paid to consolidated subsidiaries — — (113,414 ) — 113,414 — Distributions to noncontrolling interest owners — — (37,415 ) (65,952 ) — (103,367 ) Intercompany accounts 4,082,303 (2,954,054 ) 158,822 388,785 (1,675,856 ) — Proceeds from issuance of redeemable noncontrolling interests — — — 47,325 — 47,325 Other (16,765 ) — — (36 ) — (16,801 ) Net cash provided by financing activities 164,275 554,537 201,698 1,161,354 (1,562,442 ) 519,422 Effect of exchange rate on cash — — — (921 ) — (921 ) Cash and cash equivalents Net increase (decrease) for the period (438,861 ) 3,545 360,492 (148,907 ) — (223,731 ) Balance, beginning of period 538,856 304,168 — 827,288 — 1,670,312 Balance, end of period $ 99,995 $ 307,713 $ 360,492 $ 678,381 $ — $ 1,446,581

Selected Quarterly Financial _2

Selected Quarterly Financial Results (Unaudited) (Tables)	12 Months Ended
	Dec. 31, 2018
Quarterly Financial Information Disclosure [Abstract]
Schedule of Selected Quarterly Financial Results	Quarter First Second Third Fourth Total 2018 (In thousands, except per share data) Net revenues $ 2,822,237 $ 2,858,695 $ 3,029,302 $ 3,052,862 $ 11,763,096 Operating income 359,757 363,075 410,903 335,751 1,469,486 Net income 266,301 140,423 171,410 5,760 583,894 Net income (loss) attributable to MGM Resorts International 223,444 123,777 142,878 (23,327 ) 466,772 Earnings (loss) per share-basic $ 0.39 $ 0.21 $ 0.26 $ (0.06 ) $ 0.82 Earnings (loss) per share-diluted $ 0.38 $ 0.21 $ 0.26 $ (0.06 ) $ 0.81 2017 Net revenues $ 2,717,566 $ 2,652,133 $ 2,830,175 $ 2,597,605 $ 10,797,479 Operating income 496,511 499,898 492,704 223,414 1,712,527 Net income 252,574 240,873 175,744 1,418,993 2,088,184 Net income attributable to MGM Resorts International 206,412 209,864 148,363 1,387,413 1,952,052 Earnings per share-basic $ 0.36 $ 0.36 $ 0.26 $ 2.42 $ 3.38 Earnings per share-diluted $ 0.36 $ 0.36 $ 0.26 $ 2.39 $ 3.34

Organization - Additional Infor

Organization - Additional Information (Detail) - Segment	1 Months Ended		3 Months Ended		6 Months Ended	12 Months Ended
	Oct. 31, 2017	Sep. 30, 2017	Dec. 31, 2018	Mar. 31, 2017	Jun. 30, 2019	Dec. 31, 2018	Dec. 31, 2017
Organization Disclosure [Line Items]
Percentage of minority interest			26.70%			26.70%
Number of reportable segments			3
CityCenter Holdings LLC As Investee [Member]
Organization Disclosure [Line Items]
Percentage ownership interest			50.00%			50.00%	50.00%
Las Vegas Arena Company LLC As Investee [Member]
Organization Disclosure [Line Items]
Percentage ownership interest			42.50%			42.50%	42.50%
Infinity World Development Corp [Member] | CityCenter Holdings LLC As Investee [Member]
Organization Disclosure [Line Items]
Percentage ownership interest			50.00%			50.00%
Anschutz Entertainment Group, Inc [Member] | Las Vegas Arena Company LLC As Investee [Member]
Organization Disclosure [Line Items]
Percentage ownership interest			42.50%			42.50%
Athena Arena, LLC [Member] | Las Vegas Arena Company LLC As Investee [Member]
Organization Disclosure [Line Items]
Percentage ownership interest			15.00%			15.00%
Hard Rock Rocksino Northfield Park [Member]
Organization Disclosure [Line Items]
Date of acquisition agreement						2018-07
Hard Rock Rocksino Northfield Park [Member] | Forecast [Member]
Organization Disclosure [Line Items]
Date of acquisition agreement					2018-09
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%
Partnership interest	73.40%	72.30%				73.30%
Percentage of minority interest			26.70%			26.70%
MGM China [Member]
Organization Disclosure [Line Items]
Percentage ownership interest				56.00%

Basis of Presentation and Sig_4

Basis of Presentation and Significant Accounting Policies - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Percentage of ownership interest	100.00%
Percentage of minority interest	26.70%
Total assets	$ 30,210,706,000	$ 29,160,042,000	$ 28,174,400,000
Total liabilities	19,638,665,000	17,469,140,000
Accrual for property and equipment	47,000,000	28,000,000
Construction retention accrued	2,000,000	34,000,000
Impairment charges	0	0	0
Commissions, complimentaries and other incentives	2,300,000,000	2,100,000,000	1,800,000,000
Advertising expense	305,000,000	223,000,000	171,000,000
Food and Beverage Revenue [Member]
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Lease revenue	51,000,000	51,000,000	50,000,000
Entertainment Retail and Other Revenue [Member]
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Lease revenue	$ 87,000,000	$ 79,000,000	$ 77,000,000
Accounts Receivable [Member] | Customer Concentration [Member]
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Percentage of gross casino accounts receivable	62.00%	40.00%
MGM Growth Properties LLC [Member]
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Percentage of minority interest	26.70%
Total assets	$ 11,000,000,000
Total liabilities	$ 5,100,000,000

Basis of Presentation and Sig_5

Basis of Presentation and Significant Accounting Policies - Schedule of Estimated Useful Lives of Property and Equipment (Detail)	12 Months Ended
	Dec. 31, 2018
Minimum [Member] | Buildings and improvements [Member]
Property, Plant and Equipment [Line Items]
Useful life	15 years
Minimum [Member] | Land improvements [Member]
Property, Plant and Equipment [Line Items]
Useful life	10 years
Minimum [Member] | Furniture and fixtures [Member]
Property, Plant and Equipment [Line Items]
Useful life	3 years
Minimum [Member] | Equipment [Member]
Property, Plant and Equipment [Line Items]
Useful life	3 years
Maximum [Member] | Buildings and improvements [Member]
Property, Plant and Equipment [Line Items]
Useful life	40 years
Maximum [Member] | Land improvements [Member]
Property, Plant and Equipment [Line Items]
Useful life	20 years
Maximum [Member] | Furniture and fixtures [Member]
Property, Plant and Equipment [Line Items]
Useful life	20 years
Maximum [Member] | Equipment [Member]
Property, Plant and Equipment [Line Items]
Useful life	15 years

Basis of Presentation and Sig_6

Basis of Presentation and Significant Accounting Policies - Schedule of Contract and Contract - related Liabilities (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Outstanding Chip Liability [Member]
Contract And Contract Related Liabilities [Line Items]
Balance at January 1	$ 597,753	$ 227,538
Balance at December 31	323,811	597,753
Increase / (decrease)	(273,942)	370,215
Loyalty Program [Member]
Contract And Contract Related Liabilities [Line Items]
Balance at January 1	91,119	88,379
Balance at December 31	113,293	91,119
Increase / (decrease)	22,174	2,740
Customer Advances and Other [Member]
Contract And Contract Related Liabilities [Line Items]
Balance at January 1	539,626	437,287
Balance at December 31	667,285	539,626
Increase / (decrease)	$ 127,659	$ 102,339

Basis of Presentation and Sig_7

Basis of Presentation and Significant Accounting Policies - 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								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Numerator:
Net income attributable to MGM Resorts International	$ (23,327)	$ 142,878	$ 123,777	$ 223,444	$ 1,387,413	$ 148,363	$ 209,864	$ 206,412	$ 466,772	$ 1,952,052	$ 1,100,408
Adjustment related to redeemable noncontrolling interests									(21,326)	(18,363)	(28)
Net income available to common stockholders - basic									445,446	1,933,689	1,100,380
Potentially dilutive effect due to MGP and MGM China stock compensation plans									(206)	(268)	(51)
Net income attributable to common stockholders - diluted									$ 445,240	$ 1,933,421	$ 1,100,329
Denominator:
Weighted-average common shares outstanding basic									544,253	572,253	568,134
Potential dilution from share-based awards									5,283	6,542	5,183
Weighted-average common and common equivalent shares - diluted									549,536	578,795	573,317
Antidilutive share-based awards excluded from the calculation of diluted earnings per share									2,668	2,601	4,207

Accounts Receivable, Net - Sche

Accounts Receivable, Net - Schedule of Accounts Receivable, Net (Detail) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable, gross	$ 747,981	$ 634,844
Less: Allowance for doubtful accounts	(90,775)	(92,571)	$ (97,920)	$ (89,789)
Accounts receivable, net	657,206	542,273
Casino [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable, gross	419,127	343,869
Hotel [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable, gross	154,707	146,931
Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable, gross	$ 174,147	$ 144,044

Acquisition - Additional Inform

Acquisition - Additional Information (Details) - USD ($) $ in Thousands	Jul. 06, 2018	Aug. 01, 2016	Dec. 31, 2024	Jan. 29, 2019	Dec. 31, 2018	Jun. 30, 2017	Dec. 31, 2016	Dec. 31, 2018	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Business Acquisition [Line Items]
Total purchase price					$ 638,000
Gain on Borgata transaction									$ 0	$ 0	$ 430,118
Borgata Property Tax Reimbursement Agreement [Member]
Business Acquisition [Line Items]
Legal settlement amount received						$ 72,000
Northfield Park associates LLC [Member]
Business Acquisition [Line Items]
Revenue								$ 133,000
Operating income								33,000
Net income								$ 33,000
Empire City [Member] | Subsequent Event [Member]
Business Acquisition [Line Items]
Total purchase price				$ 864,000
Liabilities incurred for acquisition				$ 246,000
Date of acquisition agreement				Jan. 29, 2019
Consideration in form of common stock				$ 266,000
Additional contingent consideration payable			$ 50,000
Borgata [Member]
Business Acquisition [Line Items]
Revenue							$ 350,000
Net income							4,000
Purchase price in cash		$ 604,000
Operating income included in consolidated results							$ 34,000
Gain on Borgata transaction											$ 430,000
MGM Growth Properties LLC [Member] | Northfield Park associates LLC [Member]
Business Acquisition [Line Items]
Percentage of membership interest acquired	100.00%
Total purchase price	$ 1,100,000
MGM Growth Properties LLC [Member] | Northfield Park associates LLC [Member] | Revolving Credit Facility [Member]
Business Acquisition [Line Items]
Liabilities incurred for acquisition	655,000
MGM Growth Properties LLC [Member] | Northfield Park associates LLC [Member] | Delayed Draw Term Loan A [Member]
Business Acquisition [Line Items]
Liabilities incurred for acquisition	$ 200,000

Acquisition - Schedule of Purch

Acquisition - Schedule of Purchase Price Allocation (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Jul. 06, 2018	Dec. 31, 2017	Dec. 31, 2016
Fair value of assets acquired and liabilities assumed:
Goodwill	$ 1,821,392		$ 1,806,531	$ 1,817,119
MGM Growth Properties LLC [Member] | Northfield Park associates LLC [Member]
Fair value of assets acquired and liabilities assumed:
Property and equipment		$ 792,807
Cash and cash equivalents		35,831
Racing and gaming license		228,000
Customer list		25,000
Goodwill		17,915
Other assets		9,598
Other liabilities		(38,786)
Business combination, assets acquired and liabilities assumed		$ 1,070,365

Acquisition - Schedule of Unaud

Acquisition - Schedule of Unaudited Proforma Consolidated Financial Information (Detail) - Borgata [Member] $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2016USD ($)$ / shares
Business Acquisition [Line Items]
Net revenues | $	$ 9,963,322
Net income attributable to MGM Resorts International | $	$ 818,247
Basis net income per share | $ / shares	$ 1.44
Diluted net income per share | $ / shares	$ 1.43

Property and Equipment, Net - S

Property and Equipment, Net - Schedule of Property and Equipment, Net (Detail) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 29,747,738	$ 27,885,649
Less: Accumulated depreciation	(9,017,850)	(8,250,190)
Property and equipment, net	20,729,888	19,635,459	$ 18,425,023
Land [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	6,923,769	6,531,701
Buildings, building improvements and land improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	16,437,695	12,245,950
Furniture, fixtures and equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	6,064,330	5,157,363
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 321,944	$ 3,950,635

Investments in and Advances t_3

Investments in and Advances to Unconsolidated Affiliates - Schedule of Investments in and Advances to Unconsolidated Affiliates (Detail) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Schedule Of Equity Method Investments [Line Items]
Investments in and advances to unconsolidated affiliates	$ 732,867	$ 1,033,297
CityCenter Holdings LLC As Investee [Member]
Schedule Of Equity Method Investments [Line Items]
Investments in and advances to unconsolidated affiliates	589,965	808,220
Elgin Riverboat Resort-Riverboat Casino [Member]
Schedule Of Equity Method Investments [Line Items]
Investments in and advances to unconsolidated affiliates	0	124,342
Las Vegas Arena Company LLC As Investee [Member]
Schedule Of Equity Method Investments [Line Items]
Investments in and advances to unconsolidated affiliates	73,540	76,619
Other [Member]
Schedule Of Equity Method Investments [Line Items]
Investments in and advances to unconsolidated affiliates	$ 69,362	$ 24,116

Investments in and Advances t_4

Investments in and Advances to Unconsolidated Affiliates - Schedule of Investments in and Advances to Unconsolidated Affiliates (Parenthetical) (Detail)	Dec. 31, 2018	Aug. 31, 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	0.00%	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 t_5

Investments in and Advances to Unconsolidated Affiliates - Schedule of Share of Net Income From Unconsolidated Affiliates (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Equity Method Investments And Joint Ventures [Abstract]
Income from unconsolidated affiliates	$ 147,690	$ 146,222	$ 528,287
Preopening and start-up expenses	(3,321)	0	(3,168)
Non-operating items from unconsolidated affiliates	(47,827)	(34,751)	(53,139)
Net income from unconsolidated affiliates	$ 96,542	$ 111,471	$ 471,980

Investments in and Advances t_6

Investments in and Advances to Unconsolidated Affiliates - Schedule of Share of Income From Unconsolidated Affiliates (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Schedule Of Equity Method Investments [Line Items]
Income from unconsolidated affiliates	$ 147,690	$ 146,222	$ 528,287
CityCenter Holdings LLC As Investee [Member]
Schedule Of Equity Method Investments [Line Items]
Income from unconsolidated affiliates	138,383	133,401	445,853
Borgata [Member]
Schedule Of Equity Method Investments [Line Items]
Income from unconsolidated affiliates	0	0	61,169
Other [Member]
Schedule Of Equity Method Investments [Line Items]
Income from unconsolidated affiliates	$ 9,307	$ 12,821	$ 21,265

Investments in and Advances t_7

Investments in and Advances to Unconsolidated Affiliates - Additional Information (Detail) - USD ($) $ in Thousands

Aug. 01, 2016

Sep. 30, 2018

May 31, 2018

Apr. 30, 2017

May 31, 2016

Apr. 30, 2016

Mar. 31, 2016

Sep. 30, 2018

Dec. 31, 2018

Dec. 31, 2017

Dec. 31, 2016

Aug. 31, 2018

Schedule Of Equity Method Investments [Line Items]

Distributions from unconsolidated affiliates

$ 322,631

$ 301,211

$ 542,097

Borgata [Member]

Schedule Of Equity Method Investments [Line Items]

Date of acquisition

Aug. 1, 2016

City Center Holdings L L C [Member]

Schedule Of Equity Method Investments [Line Items]

Dividend paid/declared

$ 225,000

$ 400,000

$ 600,000

Distribution declared in accordance with annual distribution policy

78,000

$ 90,000

City Center Holdings L L C [Member] | Cash [Member]

Schedule Of Equity Method Investments [Line Items]

Dividend paid/declared

250,000

City Center Holdings L L C [Member] | Upsized Senior Credit Facilities [Member]

Schedule Of Equity Method Investments [Line Items]

Dividend paid/declared

$ 350,000

City Center Holdings L L C [Member] | Crystals [Member]

Schedule Of Equity Method Investments [Line Items]

Consideration received from sale of discontinued operations

$ 1,100,000

Recognized gain on sale

400,000

Dividend paid/declared

$ 990,000

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

Recognized gain on sale, unconsolidated affiliates and reversal of basis differences

133,000

Mandarin Oriental [Member] | CityCenter Holdings LLC As Investee [Member]

Schedule Of Equity Method Investments [Line Items]

Recognized gain on sale, unconsolidated affiliates and reversal of basis differences

$ 12,000

CityCenter Holdings LLC As Investee [Member]

Schedule Of Equity Method Investments [Line Items]

Distributions from unconsolidated affiliates

50.00%

50.00%

50.00%

Distributions from unconsolidated affiliates

$ 113,000

$ 200,000

$ 300,000

$ 540,000

Percentage ownership interest

50.00%

50.00%

CityCenter Holdings LLC As Investee [Member] | Crystals [Member]

Schedule Of Equity Method Investments [Line Items]

Recognized gain on sale, unconsolidated affiliates and reversal of basis differences

401,000

Recognized gain on sale, unconsolidated affiliates

$ 200,000

Realized gain (loss) percentage

50.00%

Recognized gain on sale, reversal of certain basis differences

$ 201,000

Elgin Riverboat Resort-Riverboat Casino [Member]

Schedule Of Equity Method Investments [Line Items]

Consideration received from sale of discontinued operations

$ 45,000

Percentage ownership interest

0.00%

50.00%

50.00%

Grand Victoria [Member]

Schedule Of Equity Method Investments [Line Items]

Consideration received from sale of discontinued operations

$ 328,000

Recognized gain on sale, unconsolidated affiliates and reversal of basis differences

$ 45,000

$ 45,000

Investments in and Advances t_8

Investments in and Advances to Unconsolidated Affiliates - Additional Information 1 (Detail) - USD ($) $ in Thousands	Sep. 01, 2016	Dec. 31, 2018
Schedule Of Equity Method Investments [Line Items]
Proceeds from sale of equity method investments		$ 163,616
Las Vegas Arena Company LLC As Investee [Member]
Schedule Of Equity Method Investments [Line Items]
Sale of interest in joint venture	7.50%
Proceeds from sale of equity method investments	$ 15,000
Las Vegas Arena Company LLC As Investee [Member] | Property Transactions, Net [Member]
Schedule Of Equity Method Investments [Line Items]
Recognized gain on sale, unconsolidated affiliates	$ 3,000

Investments in and Advances t_9

Investments in and Advances to Unconsolidated Affiliates - Summarized Balance Sheet Information (Detail) - City Center [Member] - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Schedule Of Equity Method Investments [Line Items]
Current assets	$ 363,755	$ 708,910
Property and other assets, net and other long-term assets	6,167,853	6,280,474
Current liabilities	347,710	348,232
Long-term debt and other long-term obligations	$ 1,763,290	$ 1,557,633

Investments in and Advances _10

Investments in and Advances to Unconsolidated Affiliates - Summarized Income Statement Information (Detail) - City Center [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Schedule Of Equity Method Investments [Line Items]
Net revenues	$ 1,277,745	$ 1,227,733	$ 1,160,606
Operating income	185,368	200,109	13,979
Income (loss) from continuing operations	97,091	137,226	(50,376)
Net income (loss)	$ (37,911)	$ 131,683	$ 349,716

Investments in and Advances _11

Investments in and Advances to Unconsolidated Affiliates - Tabular Disclosure of Differences between Share of Venture-Level Equity and Investment Balances (Detail) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Schedule Of Equity Method Investments [Line Items]
Venture-level equity attributable to the Company	$ 2,347,103	$ 2,659,780
Other adjustments	39,735	41,611
Investment balance	732,867	1,033,297
CityCenter Holdings LLC As Investee [Member]
Schedule Of Equity Method Investments [Line Items]
Adjustment to CityCenter equity upon contribution of net assets by MGM resorts International	(514,592)	(532,501)
CityCenter capitalized interest	186,830	206,065
CityCenter completion guarantee	274,685	322,703
CityCenter deferred gain	(212,276)	(219,561)
CityCenter capitalized interest on sponsor notes	(36,500)	(40,258)
Other-than-temporary impairments of investment	(1,352,118)	(1,504,161)
Investment balance	589,965	808,220
Grand Victoria [Member]
Schedule Of Equity Method Investments [Line Items]
Acquisition fair value adjustments net of other-than-temporary impairments of Grand Victoria investment	$ 0	$ 99,619

Investments in and Advances _12

Investments in and Advances to Unconsolidated Affiliates - Tabular Disclosure of Differences between Share of Venture-Level Equity and Investment Balances (Parenthetical) (Detail) - CityCenter Holdings LLC As Investee [Member] - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Schedule Of Equity Method Investments [Line Items]
Other-than-temporary impairments of investment	$ (1,352,118)	$ (1,504,161)
Land [Member]
Schedule Of Equity Method Investments [Line Items]
Other-than-temporary impairments of investment	$ 352,000	$ 379,000

Goodwill and Other Intangible_3

Goodwill and Other Intangible Assets - Schedule of Goodwill and Other Intangible Assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Goodwill And Intangible Assets [Line Items]
Goodwill	$ 1,821,392	$ 1,806,531	$ 1,817,119
Total indefinite-lived intangible assets	638,120	410,120
Finite-lived intangible assets, net	3,306,343	3,467,840
Total other intangible assets, net	3,944,463	3,877,960
Trademarks, License Rights and Other [Member]
Goodwill And Intangible Assets [Line Items]
Total indefinite-lived intangible assets	312,022	312,022
Customer Lists [Member]
Goodwill And Intangible Assets [Line Items]
Less: Accumulated amortization	(151,465)	(145,569)
Finite-Lived Gaming Licenses and Other Intangible Assets [Member]
Goodwill And Intangible Assets [Line Items]
Finite-lived intangible assets, gross	136,127	136,127
Less: Accumulated amortization	(31,053)	(26,896)
Finite-lived intangible assets, net	105,074	109,231
Northfield Park associates LLC [Member] | Racing and Gaming Licenses [Member]
Goodwill And Intangible Assets [Line Items]
Total indefinite-lived intangible assets	228,000	0
Northfield Park associates LLC [Member] | Customer Lists [Member]
Goodwill And Intangible Assets [Line Items]
Finite-lived intangible assets, gross	25,000	0
Borgata [Member] | Customer Lists [Member]
Goodwill And Intangible Assets [Line Items]
Finite-lived intangible assets, gross	22,000	22,000
Detroit Wholly Owned Subsidiary | Development Rights [Member]
Goodwill And Intangible Assets [Line Items]
Total indefinite-lived intangible assets	98,098	98,098
MGM Grand Paradise [Member] | Gaming Subconcession [Member]
Goodwill And Intangible Assets [Line Items]
Finite-lived intangible assets, gross	4,468,766	4,478,911
Less: Accumulated amortization	(1,342,561)	(1,180,908)
Finite-lived intangible assets, net	3,126,205	3,298,003
MGM Macau [Member] | Land Concession [Member]
Goodwill And Intangible Assets [Line Items]
Finite-lived intangible assets, gross	83,885	84,076
Less: Accumulated amortization	(32,035)	(27,870)
Finite-lived intangible assets, net	51,850	56,206
Las Vegas Strip Resorts [Member]
Goodwill And Intangible Assets [Line Items]
Goodwill	70,975	70,975	70,975
Regional Operations [Member]
Goodwill And Intangible Assets [Line Items]
Goodwill	386,892	386,892	386,892
MGM China [Member]
Goodwill And Intangible Assets [Line Items]
Goodwill	1,345,610	1,348,664	$ 1,359,252
MGM China [Member] | Customer Lists [Member]
Goodwill And Intangible Assets [Line Items]
Finite-lived intangible assets, gross	127,679	127,969
Finite-lived intangible assets, net	23,214	4,400
Corporate and Other [Member]
Goodwill And Intangible Assets [Line Items]
Goodwill	$ 17,915	$ 0

Goodwill and Other Intangible_4

Goodwill and Other Intangible Assets - Summary of Changes in Company's Goodwill by Reportable Segment (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Goodwill And Intangible Assets [Line Items]
Goodwill, beginning balance	$ 1,806,531	$ 1,817,119
Acquisitions	17,915	0
Currency exchange	(3,054)	(10,588)
Goodwill, ending balance	1,821,392	1,806,531
Las Vegas Strip Resorts [Member]
Goodwill And Intangible Assets [Line Items]
Goodwill, beginning balance	70,975	70,975
Acquisitions	0	0
Currency exchange	0	0
Goodwill, ending balance	70,975	70,975
Regional Operations [Member]
Goodwill And Intangible Assets [Line Items]
Goodwill, beginning balance	386,892	386,892
Acquisitions	0	0
Currency exchange	0	0
Goodwill, ending balance	386,892	386,892
MGM China [Member]
Goodwill And Intangible Assets [Line Items]
Goodwill, beginning balance	1,348,664	1,359,252
Acquisitions	0	0
Currency exchange	(3,054)	(10,588)
Goodwill, ending balance	1,345,610	1,348,664
Corporate and Other [Member]
Goodwill And Intangible Assets [Line Items]
Goodwill, beginning balance	0
Acquisitions	17,915
Currency exchange	0
Goodwill, ending balance	$ 17,915	$ 0

Goodwill and Other Intangible_5

Goodwill and Other Intangible Assets - Additional Information (Detail) - USD ($) $ in Thousands	Apr. 20, 2005	Aug. 31, 2018	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Finite Lived Intangible Assets [Line Items]
Indefinite-lived intangible assets			$ 638,120	$ 410,120
Amortization expense related to intangible assets			176,000	$ 173,000	$ 180,000
License [Member] | Maryland [Member]
Finite Lived Intangible Assets [Line Items]
Estimated useful life of intangible assets					15 years
Consideration paid for license fee					$ 22,000
License [Member] | Massachusetts [Member]
Finite Lived Intangible Assets [Line Items]
Estimated useful life of intangible assets		15 years
Consideration paid for license fee		$ 85,000
MGM Grand Paradise [Member] | Gaming Subconcession [Member]
Finite Lived Intangible Assets [Line Items]
Estimated remaining useful life of gaming subconcession	15 years
Mandalay Resort Group (2005) [Member] | Trademarks And Trade Names [Member]
Finite Lived Intangible Assets [Line Items]
Indefinite-lived intangible assets			210,000
Borgata [Member] | Trademarks And Trade Names [Member]
Finite Lived Intangible Assets [Line Items]
Indefinite-lived intangible assets			$ 83,000
Northfield Park associates LLC [Member] | Customer Lists [Member]
Finite Lived Intangible Assets [Line Items]
Estimated useful life of intangible assets			7 years

Goodwill and Other Intangible_6

Goodwill and Other Intangible Assets - Schedule of Estimated Future Amortization (Detail) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Estimated future amortization
2,019	$ 179,944
2,020	179,944
2,021	179,944
2,022	179,944
2,023	179,761
Thereafter	2,406,806
Finite-lived intangible assets, net	$ 3,306,343	$ 3,467,840

Other Accrued Liabilities - Sch

Other Accrued Liabilities - Schedule of Other Accrued Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Contract and contract-related liabilities:
Outstanding chip liability	$ 323,811	$ 597,753
Loyalty program obligations	113,293	91,119
Casino front money	342,941	303,950
Advance deposits and ticket sales	221,003	149,698
Unpaid wagers and other	103,341	85,978
Other accrued liabilities:
Payroll and related	518,892	483,101
Taxes, other than income taxes	235,160	170,639
MGP Dividend	31,732	29,777
Other	260,881	202,620
Other accrued liabilities	$ 2,151,054	$ 2,114,635

Long-Term Debt - Schedule of Lo

Long-Term Debt - Schedule of Long-Term Debt (Detail) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Long-term debt, Gross	$ 15,253,239	$ 13,018,276
Less: Premiums, discounts, and unamortized debt issuance costs, net	(121,823)	(109,182)
Long-term debt	15,131,416	12,909,094
Less: Current portion	(43,411)	(158,042)
Long-term debt, net	15,088,005	12,751,052
Senior Credit Facility [Member]
Debt Instrument [Line Items]
Long-term debt, Gross	750,000	372,500
Operating Partnership Senior Credit Facility [Member]
Debt Instrument [Line Items]
Long-term debt, Gross	2,819,125	2,091,375
MGM China Credit Facility [Member]
Debt Instrument [Line Items]
Long-term debt, Gross	2,433,562	2,301,584
Less: Current portion	(43,000)	(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
5.75% senior notes, due 2025 [Member]
Debt Instrument [Line Items]
Senior notes	1,000,000	0
5.625% Operating Partnership senior notes, due 2024 [Member]
Debt Instrument [Line Items]
Senior notes	1,050,000	1,050,000
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
4.625% senior notes, due 2026 [Member]
Debt Instrument [Line Items]
Senior notes	500,000	500,000
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 _2

Long-Term Debt - Schedule of Long-Term Debt (Parenthetical) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 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
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
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
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
5.75% senior notes, due 2025 [Member]
Debt Instrument [Line Items]
Long-term debt, principal amount	$ 1,000	$ 0
Long-term debt, interest rate (as a percent)	5.75%	5.75%
Long-term debt, maturity year	2,025	2,025
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
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
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	$ 0	$ 2.3
Long-term debt, interest rate (as a percent)	6.70%	6.70%
Long-term debt, maturity year	2,096	2,096

Long-Term Debt - Additional Inf

Long-Term Debt - Additional Information (Detail) - USD ($)

Mar. 31, 2020

Sep. 30, 2019

Feb. 27, 2019

Jun. 15, 2018

Jan. 31, 2019

Jun. 30, 2018

May 31, 2018

Mar. 31, 2018

Sep. 30, 2017

Jul. 31, 2017

Dec. 31, 2018

Dec. 31, 2017

Dec. 31, 2016

Mar. 31, 2022

Debt Instrument [Line Items]

Current portion of long-term debt, net of debt issuance costs

$ 43,411,000

$ 158,042,000

Credit facility amount

15,253,239,000

13,018,276,000

Loss on retirement of long-term debt

3,619,000

45,696,000

$ 66,933,000

Long-term debt, fair value

15,100,000,000

$ 13,600,000,000

Interest Rate Swap [Member] | Cash Flow Hedges [Member]

Debt Instrument [Line Items]

Notional amount

$ 400,000,000

Fixed interest rate

2.735%

Hong Kong Interbank Offered Rate HIBOR [Member] | MGM China Credit Facility [Member]

Debt Instrument [Line Items]

Variable interest rate base

HIBOR

Minimum [Member] | LIBOR [Member] | Interest Rate Swap [Member] | Cash Flow Hedges [Member]

Debt Instrument [Line Items]

Derivative basis spread on variable rate

0.00%

Term Loan A [Member] | Operating Partnership Senior Credit Facility [Member]

Debt Instrument [Line Items]

Credit facility amount

$ 470,000,000

Line Of Credit Facility Increase Decrease For Period Net

$ 200,000,000

Long-term debt, maturity year

2,023

Term loan repayment percentage of initial aggregate principal amount

2.50%

Repayments of term loan

$ 4,000,000

Debt instrument, interest rate

4.52%

Term Loan A [Member] | Forecast [Member] | Operating Partnership Senior Credit Facility [Member]

Debt Instrument [Line Items]

Term loan repayment percentage of initial aggregate principal amount

0.625%

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

Interest rate margin (as a percent)

2.00%

Term loan repayment percentage of initial aggregate principal amount

1.00%

Repayments of term loan

$ 19,000,000

Debt instrument, interest rate

4.52%

Credit facility, maturity date

2025-03

Term Loan B [Member] | Interest Rate Swap [Member] | Cash Flow Hedges [Member]

Debt Instrument [Line Items]

Notional amount

$ 1,200,000,000

Fixed interest rate

1.844%

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%

Amended and Restated Credit Agreement [Member] | MGM China Credit Facility [Member]

Debt Instrument [Line Items]

Line of credit facility, expiration date

Jun. 30, 2022

Senior Notes 5.750%, Due in 2025 [Member]

Debt Instrument [Line Items]

Long-term debt, principal amount

$ 1,000,000,000

Long-term debt, interest rate (as a percent)

5.75%

8.625% senior notes, due 2019 [Member]

Debt Instrument [Line Items]

Long-term debt, maturity year

2,019

2,019

Long-term debt, principal amount

$ 850,000,000

$ 850,000,000

Long-term debt, interest rate (as a percent)

8.625%

8.625%

8.625% senior notes, due 2019 [Member] | Subsequent Event [Member]

Debt Instrument [Line Items]

Repayments of term loan

$ 850,000,000

11.375% senior notes, due 2018 [Member]

Debt Instrument [Line Items]

Long-term debt, maturity year

2,018

Long-term debt, interest rate (as a percent)

11.375%

Redemption of senior notes

$ 475,000,000

Loss on retirement of long-term debt

$ 30,000,000

4.5% senior unsecured notes, due 2028 [Member] | MGP Growth Properties Senior Notes [Member]

Debt Instrument [Line Items]

Long-term debt, maturity year

2,028

Long-term debt, principal amount

$ 350,000,000

Long-term debt, interest rate (as a percent)

4.50%

5.75% senior unsecured notes, due 2027 [Member] | MGP Growth Properties Senior Notes [Member] | Subsequent Event [Member]

Debt Instrument [Line Items]

Long-term debt, maturity year

2,027

Long-term debt, principal amount

$ 750,000,000

Long-term debt, interest rate (as a percent)

5.75%

Senior Credit Facility [Member]

Debt Instrument [Line Items]

Line Of Credit Facility Increase Decrease For Period Net

$ 250,000

Senior Credit Facility [Member] | Term Loan A [Member]

Debt Instrument [Line Items]

Credit facility amount

750,000,000

Line Of Credit Facility Increase Decrease For Period Net

$ 520,000

Long-term debt, maturity year

2,023

Repayments of term loan

$ 9,000,000

Debt instrument, interest rate

4.77%

Senior Credit Facility [Member] | Term Loan A [Member] | Forecast [Member]

Debt Instrument [Line Items]

Term loan repayment percentage of initial aggregate principal amount

1.25%

Senior Credit Facility [Member] | Term Loan A [Member] | Minimum [Member] | LIBOR [Member]

Debt Instrument [Line Items]

Interest rate margin (as a percent)

1.50%

Senior Credit Facility [Member] | Term Loan A [Member] | Maximum [Member] | LIBOR [Member]

Debt Instrument [Line Items]

Interest rate margin (as a percent)

2.25%

MGM China Credit Facility [Member]

Debt Instrument [Line Items]

Current portion of long-term debt, net of debt issuance costs

$ 43,000,000

$ 158,000,000

Credit facility amount

2,433,562,000

$ 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

Line Of Credit Facility Increase Decrease For Period Net

$ 750,000,000

Long-term debt, maturity year

2,023

Line of credit facility drawn

$ 550,000,000

Debt instrument, interest rate

4.43%

Revolving Credit Facility [Member] | MGM China Credit Facility [Member]

Debt Instrument [Line Items]

Line of credit facility

$ 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 Increase Decrease For Period Net

(450,000,000)

Line of credit facility drawn

$ 641,000,000

Debt instrument, interest rate

4.72%

Amortization payments of aggregate principal balance (as percent)

5.00%

Revolving Credit Facility [Member] | Amended and Restated Credit Agreement [Member] | Forecast [Member] | MGM China Credit Facility [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

$ 1,500,000,000

Repayments of term loan

0

Term loans [Member] | MGM China Credit Facility [Member]

Debt Instrument [Line Items]

Line of credit facility

1,800,000,000

Repayments of term loan

$ 507,000,000

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

Line Of Credit Facility Increase Decrease For Period Net

$ 450,000,000

Weighted average interest rate at the end of the period (as a percent)

4.74%

Term loans [Member] | Amended and Restated Credit Agreement [Member] | Forecast [Member] | MGM China Credit Facility [Member]

Debt Instrument [Line Items]

Line of credit facility

0

Line of credit facility, remaining borrowing capacity

$ 0

Long-Term Debt - Schedule of In

Long-Term Debt - Schedule of Interest Expense, Net (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Debt Disclosure [Abstract]
Total interest incurred	$ 821,229	$ 779,855	$ 814,731
Interest capitalized	(51,716)	(111,110)	(119,958)
Interest expense, net	$ 769,513	$ 668,745	$ 694,773

Long-Term Debt - Schedule of Ma

Long-Term Debt - Schedule of Maturities of Long-Term Debt (Detail) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Debt Disclosure [Abstract]
2,019	$ 1,272,734
2,020	1,966,109
2,021	1,716,109
2,022	2,306,237
2,023	2,884,875
Thereafter	5,107,175
Long-term debt, Gross	$ 15,253,239	$ 13,018,276

Income Taxes - Schedule of Inco

Income Taxes - Schedule of Income (Loss) Before Taxes for Domestic and Foreign Operations (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Domestic operations	$ 660,832	$ 747,090	$ 984,095
Foreign operations	(26,826)	213,700	273,494
Income before income taxes	$ 634,006	$ 960,790	$ 1,257,589

Income Taxes - Schedule of Bene

Income Taxes - Schedule of Benefit (Provision) for Income Taxes Attributable to Income (Loss) Before Income Taxes (Detail) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Dec. 31, 2018	Mar. 31, 2018	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Federal:
Current			$ 11,991	$ (120,980)	$ (97,502)
Deferred (excluding separate components)			(143,468)	204,713	(124,625)
Deferred – change in enacted rates			0	987,942	0
Deferred – valuation allowance			(19,753)	101,443	222,688
Other noncurrent			576	1,356	3,608
Benefit (provision) for federal income taxes			(150,654)	1,174,474	4,169
State:
Current			(12,564)	(6,798)	4,069
Deferred (excluding separate components)			(12,731)	(25,233)	2,313
Deferred – operating loss carryforward			(29,490)	44,242	(16,024)
Deferred – valuation allowance			41,068	(40,078)	23,058
Other noncurrent			(1,334)	(3,876)	(2,901)
Benefit (provision) for state income taxes			(15,051)	(31,743)	10,515
Foreign:
Current			(2,037)	(470)	(2,015)
Deferred (excluding separate components)			63,827	(40,653)	(34,425)
Deferred – operating loss carryforward			30,574	4,688	2,988
Deferred – valuation allowance			23,229	21,098	(2,975)
Benefit (provision) for foreign income taxes			115,593	(15,337)	(36,427)
Benefit (provision) for income taxes	$ (92,000)	$ 72,000	$ (50,112)	$ 1,127,394	$ (21,743)

Income Taxes - Schedule of Reco

Income Taxes - Schedule of Reconciliation of the Federal Income Tax Statutory Rate and the Company's Effective Tax Rate (Detail)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income Tax Disclosure [Line Items]
Federal income tax statutory rate	21.00%	35.00%	35.00%
Change in enacted rates	0.00%	(102.70%)	0.00%
Non-controlling interest	(2.40%)	(1.50%)	(0.90%)
Foreign jurisdiction income/losses taxed at other than U.S. statutory rate	(9.50%)	(9.20%)	(3.80%)
Repatriation of foreign earnings	0.00%	35.40%	5.20%
Foreign tax credit	(0.00%)	(70.30%)	(10.60%)
Federal valuation allowance	3.10%	(10.60%)	(17.70%)
State taxes, net	1.90%	2.40%	0.00%
General business credits	(2.90%)	(1.00%)	(0.70%)
Stock-based compensation	(1.20%)	(2.10%)	0.00%
Gain on Borgata transaction	0.00%	0.00%	(5.40%)
Non-deductible employee dining facility costs	1.40%	0.00%	0.00%
Permanent and other items	2.90%	3.10%	0.60%
Provision for income taxes (as a percent)	7.90%	(117.30%)	1.70%
Macau [Member]
Income Tax Disclosure [Line Items]
Macau dividend tax	(6.40%)	4.20%	0.00%

Income Taxes - Schedule of Tax-

Income Taxes - Schedule of Tax-Effected Components of the Company's Net Deferred Tax Liability (Detail) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Deferred tax assets
Deferred tax assets, net	$ 827,686	$ 894,401
Deferred tax liabilities
Total deferred tax liability	(2,170,224)	(2,189,776)
Net deferred tax liability	(1,342,538)	(1,295,375)
Federal and state [Member]
Deferred tax assets
Bad debt reserve	23,497	25,432
Deferred compensation	5,950	5,232
Net operating loss carryforward	23,406	46,702
Accruals, reserves and other	88,139	94,904
Investments in unconsolidated affiliates	83,130	84,188
Stock-based compensation	20,581	24,390
Tax credits	2,926,996	3,045,138
Deferred tax assets, gross	3,171,699	3,325,986
Less: Valuation allowance	(2,449,582)	(2,462,272)
Deferred tax assets, net	722,117	863,714
Deferred tax liabilities
Property and equipment	(1,729,786)	(1,670,704)
Long-term debt	(3,141)	(48,809)
Intangibles	(90,758)	(79,167)
Total deferred tax liability	(1,823,685)	(1,798,680)
Foreign [Member]
Deferred tax assets
Bad debt reserve	1,372	821
Net operating loss carryforward	107,308	76,909
Accruals, reserves and other	18,603	0
Property and equipment	998	0
Stock-based compensation	5,409	4,423
Deferred tax assets, gross	133,690	82,153
Less: Valuation allowance	(28,121)	(51,466)
Deferred tax assets, net	105,569	30,687
Deferred tax liabilities
Accruals, reserves and other	0	(26,657)
Property and equipment	0	(16,277)
Intangibles	(346,539)	(348,162)
Total deferred tax liability	$ (346,539)	$ (391,096)

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income Tax Disclosure [Line Items]
Federal income tax statutory rate			21.00%	35.00%	35.00%
Tax Cuts and Jobs Act of 2017, provisional discrete non-cash net tax benefit				$ 1,400,000
Tax Cuts and Jobs Act of 2017, Tax benefit due to change in corporate tax rate				988,000
Tax cuts and jobs Act of 2017, Tax benefit on re-assessment of foreign tax credit valuation allowance				438,000
Foreign unrepatriated earnings				669,000
Foreign earnings distributions during the period				62,000
Tax cuts and jobs act of 2017, measurement period adjustment, income tax expense (benefit)			$ 20,000
Measurement period adjustment, effective tax rate increased			3.00%
Deferred Taxes for annual fee			$ 41	41
MGM Grand Paradise SA [Member]
Income Tax Disclosure [Line Items]
Complementary tax			$ 866,000
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%
Decrease in net income attributable to MGM Resorts International			$ (43,000)	$ (38,000)
Per share decrease in net income attributable to MGM Resorts International			$ (0.08)	$ (0.07)
Annual payments required under the extended annual fee arrangement			$ 1,000	$ 1,000
Macau [Member] | MGM Grand Paradise SA [Member] | Forecast [Member]
Income Tax Disclosure [Line Items]
Annual payments required under the extended annual fee arrangement		$ 1,000
Payments required under the extended annual fee arrangement	$ 300
Maximum [Member]
Income Tax Disclosure [Line Items]
Deduction percentage to offset income tax liability				50.00%

Income Taxes - Additional Inf_2

Income Taxes - Additional Information1 (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Line Items]
Net deferred tax asset	$ 481
Tax credit carry forward period	10 years
Domestic losses recaptured in foreign tax credit carry forward.	$ 1,700
Unrecognized tax benefits, if recognized, would affect the effective tax rate	13	$ 11
Macau [Member]
Income Tax Disclosure [Line Items]
Deferred tax assets, valuation allowance	26
Hong Kong [Member]
Income Tax Disclosure [Line Items]
Net operating losses, valuation allowance	2
2022 [Member]
Income Tax Disclosure [Line Items]
Tax credit carryforward expiration amount	$ 640
Foreign tax credit carryforward, expiration date	Dec. 31, 2022
2023 [Member]
Income Tax Disclosure [Line Items]
Tax credit carryforward expiration amount	$ 976
Foreign tax credit carryforward, expiration date	Dec. 31, 2023
2024 [Member]
Income Tax Disclosure [Line Items]
Tax credit carryforward expiration amount	$ 782
Foreign tax credit carryforward, expiration date	Dec. 31, 2024
2025 [Member]
Income Tax Disclosure [Line Items]
Tax credit carryforward expiration amount	$ 332
Foreign tax credit carryforward, expiration date	Dec. 31, 2025
2027 [Member]
Income Tax Disclosure [Line Items]
Tax credit carryforward expiration amount	$ 196
Foreign tax credit carryforward, expiration date	Dec. 31, 2027
Macau [Member]
Income Tax Disclosure [Line Items]
Valuation allowance on foreign tax credit	$ 2,400
Foreign tax credit carryover	$ 2,900
Special gaming tax rate	35.00%
State [Member]
Income Tax Disclosure [Line Items]
Complementary tax	$ 355
Deferred tax assets after federal tax effect and before valuation allowance	23
Deferred tax assets, valuation allowance	$ 3
State [Member] | Minimum [Member]
Income Tax Disclosure [Line Items]
Net operating loss carryforwards expire	2,029
State [Member] | Maximum [Member]
Income Tax Disclosure [Line Items]
Net operating loss carryforwards expire	2,038

Income Taxes - Schedule of Re_2

Income Taxes - Schedule of Reconciliation of the Beginning and Ending Amounts of Gross Unrecognized Tax Benefits (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Gross unrecognized tax benefits at January 1	$ 18,588	$ 14,026	$ 13,724
Gross increases - prior period tax positions	5,345	0	0
Gross decreases - prior period tax positions	(957)	(2,280)	(3,375)
Gross increases - current period tax positions	1,488	6,842	3,677
Gross unrecognized tax benefits at December 31	$ 24,464	$ 18,588	$ 14,026

Commitments and Contingencies -

Commitments and Contingencies - Schedule of Future Minimum Lease Payments Required to be Made under Non-Cancellable Operating Leases (Detail) $ in Thousands	Dec. 31, 2018USD ($)
Operating Leases Future Payments
2,019	$ 106,643
2,020	83,150
2,021	62,437
2,022	47,036
2,023	45,157
Thereafter	1,357,611
Total minimum lease payments	$ 1,702,034

Commitments and Contingencies_2

Commitments and Contingencies - Additional Information (Detail)	Feb. 15, 2017USD ($)	Sep. 01, 2016USD ($)shares	Sep. 30, 2016USD ($)	Jun. 30, 2016USD ($)	Dec. 31, 2018USD ($)aAgreement	Dec. 31, 2017USD ($)	Dec. 31, 2016USD ($)	Aug. 31, 2016a
Loss Contingencies [Line Items]
Rental expense for operating leases					$ 89,000,000	$ 92,000,000	$ 80,000,000
Initial term of contract					25 years
Initial contract ending date					Jan. 31, 2038
Other accrued liabilities					$ 260,881,000	202,620,000
Other long-term obligations					259,240,000	284,416,000
Business exit expense (credit)					0	(40,629,000)	$ 139,335,000
MGP Senior Credit Facility [Member]
Loss Contingencies [Line Items]
Credit facility outstanding					0
Senior Credit Facility [Member]
Loss Contingencies [Line Items]
Credit facility outstanding					12,000,000
Letters of credit [Member] | MGP Senior Credit Facility [Member]
Loss Contingencies [Line Items]
Credit facility amount					75,000,000
Letters of credit [Member] | Senior Credit Facility [Member]
Loss Contingencies [Line Items]
Credit facility amount					250,000,000
NV Energy Exit [Member]
Loss Contingencies [Line Items]
Upfront impact payment and related costs			$ 83,000,000
Estimated obligation related to non-bypassable charges					0	71,000,000
Other accrued liabilities					8,000,000	10,000,000
Other long-term obligations					$ 15,000,000	23,000,000
Business exit expense (credit)				$ (41,000,000)
Borgata Property Tax Reimbursement Agreement [Member]
Loss Contingencies [Line Items]
Property tax refunds plus interest	$ 106,000,000
Additional tax refunds due	65,000,000
Payment of settlement for property tax refunds	72,000,000
MGM National Harbor Project [Member]
Loss Contingencies [Line Items]
Area of ground lease | a					23
Initial lease term					25 years
Number of lease extension periods | Agreement					13
Number of reasonably assured lease extensions | Agreement					7
Length of each potential extension period for operating leases					6 years
Operating lease term					67 years
Operating Lease ending date					Dec. 31, 2082
City Center Holdings LLC As a Legal Entity [Member] | NV Energy Exit [Member]
Loss Contingencies [Line Items]
Upfront impact payment and related costs			$ 14,000,000
Business exit expense (credit)				$ (8,000,000)
MGM China [Member]
Loss Contingencies [Line Items]
Ordinary shares acquired | shares		188,100,000
Grand Paradise Macau [Member]
Loss Contingencies [Line Items]
Other long-term obligations					$ 36,000,000
Deferred cash payment to Grand Paradise Macau		$ 50,000,000			11,000,000	7,000,000
Standby Letters of Credit [Member] | Letters of credit [Member] | MGM China Credit Facility [Member]
Loss Contingencies [Line Items]
Credit facility amount					$ 100,000,000
Borgata [Member]
Loss Contingencies [Line Items]
Area of ground lease | a								11
Lease expiration date					Dec. 31, 2070
Borgata [Member] | City of Atlantic City, New Jersey [Member] | Borgata Property Tax Reimbursement Agreement [Member]
Loss Contingencies [Line Items]
Reimbursement of property tax - Total amount	$ 72,000,000
Borgata [Member] | Unfavorable Regulatory Action [Member]
Loss Contingencies [Line Items]
Unfavorable lease liability					$ 46,000,000	$ 47,000,000

Stockholders' Equity - Summary

Stockholders' Equity - Summary of Changes in Accumulated Balance of Other Comprehensive Income (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	$ 11,611,124	$ 9,941,957
Ending Balance	10,469,791	11,611,124
Accumulated Foreign Currency Adjustment Including Portion Attributable to Noncontrolling Interest
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	(11,450)	12,545
Other comprehensive income (loss) before reclassifications	(13,022)	(43,188)
Amounts reclassified from accumulated other comprehensive income (loss) to interest expense	0	0
Other comprehensive income (loss), net of tax	(13,022)	(43,188)
Other comprehensive income (loss) attributable to noncontrolling interest	5,600	19,193
Ending Balance	(18,872)	(11,450)
Accumulated Net Gain (Loss) from Cash Flow Hedges Including Portion Attributable to Noncontrolling Interest
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	6,668	1,434
Other comprehensive income (loss) before reclassifications	4,706	(1,221)
Amounts reclassified from accumulated other comprehensive income (loss) to interest expense	(1,130)	9,216
Other comprehensive income (loss), net of tax	3,576	7,995
Other comprehensive income (loss) attributable to noncontrolling interest	(1,100)	(2,761)
Ending Balance	9,144	6,668
Accumulated Other Adjustment Including Portion Attributable To Noncontrolling Interest
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	1,172	1,074
Other comprehensive income (loss) before reclassifications	0	98
Amounts reclassified from accumulated other comprehensive income (loss) to interest expense	0	0
Other comprehensive income (loss), net of tax	0	98
Other comprehensive income (loss) attributable to noncontrolling interest	0	0
Ending Balance	1,172	1,172
AOCI Including Portion Attributable to Noncontrolling Interest
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	(3,610)	15,053
Other comprehensive income (loss) before reclassifications	(8,316)	(44,311)
Amounts reclassified from accumulated other comprehensive income (loss) to interest expense	(1,130)	9,216
Other comprehensive income (loss), net of tax	(9,446)	(35,095)
Other comprehensive income (loss) attributable to noncontrolling interest	4,500	16,432
Ending Balance	$ (8,556)	$ (3,610)

Stockholders' Equity - Summar_2

Stockholders' Equity - Summary of Net Income Attributable to and Transfers from Noncontrolling Interest (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Stockholders Equity Note [Line Items]
Net income attributable to MGM Resorts International	$ (23,327)	$ 142,878	$ 123,777	$ 223,444	$ 1,387,413	$ 148,363	$ 209,864	$ 206,412	$ 466,772	$ 1,952,052	$ 1,100,408
Transfers from/(to) to noncontrolling interest:
Other									(5,667)	(2,889)
Net transfers from/(to) noncontrolling interest									(5,667)	19,752
Change from net income attributable to MGM Resorts International and transfers to noncontrolling interest									461,105	1,971,804
MGM National Harbor Transaction [Member]
Transfers from/(to) to noncontrolling interest:
Net transfers from/(to) noncontrolling interest									0	(12,497)
MGM Growth Properties LLC [Member]
Transfers from/(to) to noncontrolling interest:
MGP Class A share issuance											$ 1,183,838
MGM Growth Properties LLC [Member] | Class A shares [Member]
Transfers from/(to) to noncontrolling interest:
MGP Class A share issuance									$ 0	$ 35,138

Stockholders' Equity - Addition

Stockholders' Equity - Additional Information (Detail) - USD ($) $ / shares in Units, shares in Thousands	Feb. 13, 2019	Jan. 31, 2019	Oct. 31, 2017	Sep. 30, 2017	Dec. 31, 2018	Dec. 31, 2017	May 31, 2018
Stockholders Equity Note [Line Items]
Long-term debt, Gross					$ 15,253,239,000	$ 13,018,276,000
Repurchase of common stock					$ 1,283,333,000	$ 327,500,000
Subsequent Event [Member]
Stockholders Equity Note [Line Items]
Dividend declared date	Feb. 13, 2019
Dividends declared per share	$ 0.13
Dividends paid date	Mar. 15, 2019
Dividend record date	Mar. 8, 2019
Common Stock [Member]
Stockholders Equity Note [Line Items]
Common stock repurchases, Shares					41,076	10,000
Repurchase of common stock					$ 411,000	$ 100,000
Share Repurchase Program [Member]
Stockholders Equity Note [Line Items]
Authorized amount of stock repurchase							$ 2,000,000,000
Repurchase of common stock, remaining amount					$ 1,400,000,000
Share Repurchase Program Two [Member]
Stockholders Equity Note [Line Items]
Authorized amount of stock repurchase				$ 1,000,000,000
Share Repurchase Program [Member] | Common Stock [Member]
Stockholders Equity Note [Line Items]
Common stock repurchases, Shares					41,000	10,000
Stock repurchased, average price per share					$ 31.25	$ 32.75
Repurchase of common stock					$ 1,300,000,000	$ 328,000,000
MGM National Harbor Transaction [Member]
Stockholders Equity Note [Line Items]
Cash in exchange			$ 463,000,000
MGM Growth Properties LLC [Member]
Stockholders Equity Note [Line Items]
Issuance of operating partnership units		12,900	9,800
Partnership interest			73.40%	72.30%	73.30%
MGM Growth Properties LLC [Member] | Term loans [Member]
Stockholders Equity Note [Line Items]
Long-term debt, Gross			$ 425,000,000
Class A shares [Member] | MGM Growth Properties LLC [Member]
Stockholders Equity Note [Line Items]
New issuance of shares		19,600		13,200
Issuance of operating partnership units		19,600		13,200

Stock-Based Compensation - Addi

Stock-Based Compensation - Additional Information (Detail) - Omnibus Plan [Member] $ in Millions	12 Months Ended
	Dec. 31, 2018USD ($)shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Maximum number of shares to be issued	45,000,000
Number of shares available for grant as share-based awards	20,000,000
Number of options and stock appreciation rights outstanding	7,000,000
Number of restricted stock units and performance share units outstanding	7,000,000
Unamortized compensation | $	$ 134
Weighted-average period over which compensation cost is expected to be recognized	2 years 1 month 6 days

Stock-Based Compensation - Sche

Stock-Based Compensation - Schedule of Information Related to Intrinsic Value (Detail) - Omnibus Plan [Member] $ in Thousands	12 Months Ended
	Dec. 31, 2018USD ($)
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based awards exercised and RSUs and PSUs vested	$ 97,302
Stock options and SARs outstanding	21,563
Stock options and SARs vested and expected to vest	21,547
Stock options and SARs exercisable	$ 19,745

Stock-Based Compensation - Sc_2

Stock-Based Compensation - Schedule of Compensation Cost Recognized (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Compensation cost	$ 70,196	$ 62,522	$ 55,607
Less: Reimbursed costs and capitalized cost	(1,710)	(1,398)	(1,350)
Compensation cost after reimbursed costs and capitalized cost	68,486	61,124	54,257
Less: Related tax benefit	(13,218)	(18,650)	(16,782)
Compensation cost, net of tax benefit	55,268	42,474	37,475
Omnibus Plan [Member]
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Compensation cost	57,735	49,383	43,661
MGP Omnibus Plan [Member]
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Compensation cost	2,092	2,568	3,401
MGM China Plan [Member]
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Compensation cost	$ 10,369	$ 10,571	$ 8,545

Employee Benefit Plans - Table

Employee Benefit Plans - Table Outlining Company's Participation in Pension Plans (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Southern Nevada Culinary and Bartenders Pension Plan [Member]
Multiemployer Plans [Line Items]
Employer identification number	886,016,617
Pension plan number	1
Pension Protection Act Zone Status		Green	Green
FIP/RP Status	No
Contributions by the Company	$ 47,825	$ 45,297	$ 44,001
Surcharge Imposed	No
Expiration Date of Collective Bargaining Agreements, First	May 31, 2019
Expiration Date of Collective Bargaining Agreements, Last	May 31, 2023
Legacy Plan of the National Retirement Fund (NRF) [Member]
Multiemployer Plans [Line Items]
Employer identification number	136,130,178
Pension plan number	1
Pension Protection Act Zone Status		Red	Red
FIP/RP Status	Implemented
Contributions by the Company	$ 9,794	$ 9,416	$ 3,788
Surcharge Imposed	Yes
Expiration Date of Collective Bargaining Agreements, Last	Feb. 29, 2020

Employee Benefit Plans - Tabl_2

Employee Benefit Plans - Table Outlining Company's Participation in Pension Plans (Parenthetical) (Detail) - Agreement	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Multiemployer Plans [Line Items]
Number of collective bargaining agreements	10
Number of significant collective bargaining agreements	4
Southern Nevada Culinary and Bartenders Pension Plan [Member]
Multiemployer Plans [Line Items]
Minimum percentage of total contributions to be listed in Pension Plan's Forms 5500		5.00%	5.00%
Multiemployer plans, funded status	At least 80 percent
Legacy Plan of the National Retirement Fund (NRF) [Member]
Multiemployer Plans [Line Items]
Minimum percentage of total contributions to be listed in Pension Plan's Forms 5500			5.00%
Multiemployer plans, funded status	Less than 65 percent

Employee Benefit Plans - Additi

Employee Benefit Plans - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Other Accrued Liabilities [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Liability for self-insurance	$ 93	$ 87
Multiemployer Plans, Postretirement Benefit [Member] | UNITE HERE Health [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Contributions by the Company	$ 191	$ 183	$ 187

Property Transactions, Net - Sc

Property Transactions, Net - Schedule of Property Transactions, Net (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Property, Plant and Equipment [Line Items]
Other property transactions, net	$ 53,850	$ 50,279	$ 17,078
Property transactions, net	9,147	50,279	17,078
Grand Victoria [Member]
Property, Plant and Equipment [Line Items]
Gain on sale of Grand Victoria	$ (44,703)	$ 0	$ 0

Property Transactions, Net - Ad

Property Transactions, Net - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Property, Plant and Equipment [Line Items]
Other property transactions, net	$ (53,850)	$ (50,279)	$ (17,078)
M G M Cotai Production [Member]
Property, Plant and Equipment [Line Items]
Other property transactions, net	(24,000)
Monte Carlo Rebranding [Member]
Property, Plant and Equipment [Line Items]
Other property transactions, net	$ (20,000)	$ (34,000)

Segment Information - Schedule

Segment Information - Schedule of Segment Information (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Revenues
Revenues	$ 3,052,862	$ 3,029,302	$ 2,858,695	$ 2,822,237	$ 2,597,605	$ 2,830,175	$ 2,652,133	$ 2,717,566	$ 11,763,096	$ 10,797,479	$ 9,478,269
Other operating income (expense)
NV Energy exit expense									0	40,629	(139,335)
Preopening and start-up expenses									(151,392)	(118,475)	(140,075)
Property transactions, net									(9,147)	(50,279)	(17,078)
Gain on Borgata transaction									0	0	430,118
Depreciation and amortization									(1,178,044)	(993,480)	(849,527)
Operating income	335,751	410,903	363,075	359,757	223,414	492,704	499,898	496,511	1,469,486	1,712,527	2,078,199
Non-operating income (expense)
Interest expense, net of amounts capitalized									(769,513)	(668,745)	(694,773)
Non-operating items from unconsolidated affiliates									(47,827)	(34,751)	(53,139)
Other, net									(18,140)	(48,241)	(72,698)
Total non-operating income (expense)									(835,480)	(751,737)	(820,610)
Income before income taxes									634,006	960,790	1,257,589
Benefit (provision) for income taxes	(92,000)			72,000					(50,112)	1,127,394	(21,743)
Net income	5,760	171,410	140,423	266,301	1,418,993	175,744	240,873	252,574	583,894	2,088,184	1,235,846
Less: Net income attributable to noncontrolling interests									(117,122)	(136,132)	(135,438)
Net income attributable to MGM Resorts International	(23,327)	$ 142,878	$ 123,777	$ 223,444	1,387,413	$ 148,363	$ 209,864	$ 206,412	466,772	1,952,052	1,100,408
Total assets	30,210,706				29,160,042				30,210,706	29,160,042	28,174,400
Property and equipment, net	20,729,888				19,635,459				20,729,888	19,635,459	18,425,023
Capital expenditures									1,486,843	1,864,082	2,262,473
Reportable segments [Member]
Revenues
Revenues									11,101,150	10,314,003	8,996,809
Adjusted Property EBITDA									3,032,869	3,048,040	2,590,903
Non-operating income (expense)
Total assets	26,628,869				25,890,420				26,628,869	25,890,420	24,894,872
Property and equipment, net	18,927,018				18,148,215				18,927,018	18,148,215	17,211,597
Capital expenditures									964,121	1,409,957	1,302,306
Reportable segments [Member] | Las Vegas Strip Resorts [Member]
Revenues
Revenues									5,716,672	5,746,123	5,664,694
Adjusted Property EBITDA									1,705,479	1,780,600	1,661,921
Non-operating income (expense)
Total assets	11,783,736				11,648,168				11,783,736	11,648,168	11,650,747
Property and equipment, net	10,605,454				10,568,296				10,605,454	10,568,296	10,568,317
Capital expenditures									501,044	419,983	288,526
Reportable segments [Member] | MGM China [Member]
Revenues
Revenues									2,449,957	1,858,160	1,811,958
Adjusted Property EBITDA									568,294	535,524	529,281
Non-operating income (expense)
Total assets	9,093,307				9,461,535				9,093,307	9,461,535	8,443,411
Property and equipment, net	3,818,460				3,827,391				3,818,460	3,827,391	2,857,626
Capital expenditures									390,212	923,346	984,355
Reportable segments [Member] | Regional Operations [Member]
Revenues
Revenues									2,934,521	2,709,720	1,520,157
Adjusted Property EBITDA									759,096	731,916	399,701
Non-operating income (expense)
Total assets	5,751,826				4,780,717				5,751,826	4,780,717	4,800,714
Property and equipment, net	4,503,104				3,752,528				4,503,104	3,752,528	3,785,654
Capital expenditures									72,865	66,628	29,425
Corporate and other [Member]
Revenues
Revenues									661,946	483,476	481,460
Other operating income (expense)
Corporate and other									(224,800)	(213,908)	203,193
Non-operating income (expense)
Total assets	3,666,586				3,339,746				3,666,586	3,339,746	3,334,724
Property and equipment, net	1,887,619				1,557,368				1,887,619	1,557,368	1,268,622
Capital expenditures									537,347	469,053	973,446
Consolidation, Eliminations [Member]
Non-operating income (expense)
Total assets	(84,749)				(70,124)				(84,749)	(70,124)	(55,196)
Property and equipment, net	$ (84,749)				$ (70,124)				(84,749)	(70,124)	(55,196)
Capital expenditures									(14,625)	(14,928)	(13,279)
Casino [Member]
Revenues
Revenues									5,753,150	5,016,426	4,108,126
Casino [Member] | Reportable segments [Member] | Las Vegas Strip Resorts [Member]
Revenues
Revenues									1,407,733	1,436,830	1,394,820
Casino [Member] | Reportable segments [Member] | MGM China [Member]
Revenues
Revenues									2,195,144	1,741,635	1,695,023
Casino [Member] | Reportable segments [Member] | Regional Operations [Member]
Revenues
Revenues									2,026,925	1,834,803	1,017,857
Rooms [Member]
Revenues
Revenues									2,212,573	2,152,741	2,003,027
Rooms [Member] | Reportable segments [Member] | Las Vegas Strip Resorts [Member]
Revenues
Revenues									1,776,029	1,778,869	1,762,850
Rooms [Member] | Reportable segments [Member] | MGM China [Member]
Revenues
Revenues									118,527	54,824	57,367
Rooms [Member] | Reportable segments [Member] | Regional Operations [Member]
Revenues
Revenues									318,017	319,049	182,809
Food and Beverage [Member]
Revenues
Revenues									1,959,021	1,871,969	1,727,805
Food and Beverage [Member] | Reportable segments [Member] | Las Vegas Strip Resorts [Member]
Revenues
Revenues									1,402,378	1,410,496	1,432,717
Food and Beverage [Member] | Reportable segments [Member] | MGM China [Member]
Revenues
Revenues									114,862	51,330	51,237
Food and Beverage [Member] | Reportable segments [Member] | Regional Operations [Member]
Revenues
Revenues									428,934	410,143	235,383
Entertainment, Retail and Other [Member]
Revenues
Revenues									1,412,860	1,354,301	1,242,159
Entertainment, Retail and Other [Member] | Reportable segments [Member] | Las Vegas Strip Resorts [Member]
Revenues
Revenues									1,130,532	1,119,928	1,074,307
Entertainment, Retail and Other [Member] | Reportable segments [Member] | MGM China [Member]
Revenues
Revenues									21,424	10,371	8,331
Entertainment, Retail and Other [Member] | Reportable segments [Member] | Regional Operations [Member]
Revenues
Revenues									$ 160,645	$ 145,725	$ 84,108

Related Party Transactions - Ad

Related Party Transactions - Additional Information (Detail) $ in Thousands

Apr. 01, 2018USD ($)

Oct. 05, 2017USD ($)

Jan. 31, 2019USD ($)

Jan. 29, 2019USD ($)

Dec. 31, 2018USD ($)

Sep. 30, 2018USD ($)

Dec. 31, 2018USD ($)

Sep. 30, 2018USD ($)

Jun. 30, 2018USD ($)

Mar. 31, 2018USD ($)

Dec. 31, 2017USD ($)

Sep. 30, 2017USD ($)

Jun. 30, 2017USD ($)

Mar. 31, 2017USD ($)

Dec. 31, 2018USD ($)Term

Dec. 31, 2017USD ($)

Dec. 31, 2016USD ($)

Related Party Transaction [Line Items]

Revenues

$ 3,052,862

$ 3,029,302

$ 2,858,695

$ 2,822,237

$ 2,597,605

$ 2,830,175

$ 2,652,133

$ 2,717,566

$ 11,763,096

$ 10,797,479

$ 9,478,269

Initial lease term

10 years

Company initial lease can be extended | Term

4

Company initial lease additional extension option

5 years

Leasing arrangement description of rent

0

Total purchase price

$ 638,000

Empire City [Member] | Subsequent Event [Member]

Related Party Transaction [Line Items]

Total purchase price

$ 864,000

Date of acquisition agreement

Jan. 29, 2019

Empire City [Member] | Developed Real Property | Subsequent Event [Member]

Related Party Transaction [Line Items]

Total purchase price

$ 634,000

Increase in annual rent payment

$ 50,000

Annual fixed rent, percentage

90.00%

Increase in annual rent per year, percentage

2.00%

Northfield OpCo [Member]

Related Party Transaction [Line Items]

Date of acquisition agreement

Sep. 30, 2018

Purchase price in cash

$ 275,000

Master Lease [Member]

Related Party Transaction [Line Items]

Annual rent payments under master lease of properties

$ 770,000

$ 757,000

Increase in annual rent payment

$ 50,000

Annual fixed rent, percentage

90.00%

Increase in annual rent per year, percentage

2.00%

Master Lease [Member] | Northfield OpCo [Member]

Related Party Transaction [Line Items]

Increase in annual rent payment

$ 60,000

Annual fixed rent, percentage

90.00%

Increase in annual rent per year, percentage

2.00%

Base Rent [Member]

Related Party Transaction [Line Items]

Percentage of initial total rent payments due

90.00%

Fixed annual rent escalator percentage

2.00%

2.00%

Additional annual rent escalator percentage

2.00%

Percentage Rent [Member]

Related Party Transaction [Line Items]

Percentage of initial total rent payments due

10.00%

Shun Tak [Member] | MGM China [Member]

Related Party Transaction [Line Items]

Expenses incurred

$ 17,000

$ 13,000

10,000

Ms Ho Pansy Catilina Chiu King [Member] | MGM Branding and Development [Member]

Related Party Transaction [Line Items]

Distribution made to noncontrolling interests

22,000

15,000

15,000

City Center Holdings L L C [Member]

Related Party Transaction [Line Items]

Revenues

$ 47,000

49,000

43,000

City Center Holdings L L C [Member] | Aria and Vdara [Member]

Related Party Transaction [Line Items]

Management fee as a percentage of revenue

2.00%

Management fee received, percentage of EBITDA

5.00%

City Center Holdings L L C [Member] | Management Services and Reimbursable Costs [Member]

Related Party Transaction [Line Items]

Reimbursable costs for support services provided

$ 409,000

390,000

$ 387,000

Receivable related to management services and reimbursable costs

$ 83,000

$ 83,000

$ 77,000

$ 83,000

$ 77,000

Condensed Consolidating Finan_3

Condensed Consolidating Financial Information - Schedule of Condensed Consolidating Balance Sheet Information (Detail) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Condensed Balance Sheet Statements Captions [Line Items]
Current assets	$ 2,526,778	$ 2,376,355
Property and equipment, net	20,729,888	19,635,459	$ 18,425,023
Investments in subsidiaries	0	0
Investments in the MGP Operating Partnership	0	0
Investments in and advances to unconsolidated affiliates	732,867	1,033,297
Intercompany accounts	0	0
Other non-current assets	6,221,173	6,114,931
Total assets	30,210,706	29,160,042	28,174,400
Current liabilities	2,948,882	3,138,297
Intercompany accounts	0	0
Deferred income taxes, net	1,342,538	1,295,375
Long-term debt, net	15,088,005	12,751,052
Other long-term obligations	259,240	284,416
Total liabilities	19,638,665	17,469,140
Redeemable noncontrolling interests	102,250	79,778
MGM Resorts International stockholders' equity	6,512,283	7,577,061
Noncontrolling interests	3,957,508	4,034,063
Total stockholders' equity	10,469,791	11,611,124	$ 9,941,957	$ 7,738,104
Total liabilities and stockholders' equity	30,210,706	29,160,042
Reportable Legal Entities [Member] | Parent [Member]
Condensed Balance Sheet Statements Captions [Line Items]
Current assets	304,741	78,909
Property and equipment, net	0	0
Investments in subsidiaries	22,419,282	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	67,214	49,142
Total assets	22,791,237	21,168,198
Current liabilities	154,484	153,159
Intercompany accounts	6,932,325	5,783,578
Deferred income taxes, net	1,097,654	934,966
Long-term debt, net	8,055,472	6,682,574
Other long-term obligations	39,019	36,860
Total liabilities	16,278,954	13,591,137
Redeemable noncontrolling interests	0	0
MGM Resorts International stockholders' equity	6,512,283	7,577,061
Noncontrolling interests	0	0
Total stockholders' equity	6,512,283	7,577,061
Total liabilities and stockholders' equity	22,791,237	21,168,198
Reportable Legal Entities [Member] | Guarantor Subsidiaries [Member]
Condensed Balance Sheet Statements Captions [Line Items]
Current assets	1,178,696	1,015,802
Property and equipment, net	13,564,979	13,521,221
Investments in subsidiaries	3,401,031	3,304,768
Investments in the MGP Operating Partnership	3,434,602	3,549,063
Investments in and advances to unconsolidated affiliates	678,748	1,002,903
Intercompany accounts	7,135,263	5,998,499
Other non-current assets	917,537	913,602
Total assets	30,310,856	29,305,858
Current liabilities	1,617,675	1,445,031
Intercompany accounts	0	0
Deferred income taxes, net	0	0
Long-term debt, net	570	2,835
Other long-term obligations	7,210,897	7,268,664
Total liabilities	8,829,142	8,716,530
Redeemable noncontrolling interests	0	0
MGM Resorts International stockholders' equity	21,481,714	20,589,328
Noncontrolling interests	0	0
Total stockholders' equity	21,481,714	20,589,328
Total liabilities and stockholders' equity	30,310,856	29,305,858
Reportable Legal Entities [Member] | Non-Guarantor MGP Subsidiaries [Member]
Condensed Balance Sheet Statements Captions [Line Items]
Current assets	78,222	266,627
Property and equipment, net	10,526,520	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	346,565	62,555
Total assets	10,951,307	10,351,120
Current liabilities	189,247	144,537
Intercompany accounts	307	962
Deferred income taxes, net	33,634	28,544
Long-term debt, net	4,666,949	3,934,628
Other long-term obligations	215,664	174,710
Total liabilities	5,105,801	4,283,381
Redeemable noncontrolling interests	0	0
MGM Resorts International stockholders' equity	4,279,535	4,443,089
Noncontrolling interests	1,565,971	1,624,650
Total stockholders' equity	5,845,506	6,067,739
Total liabilities and stockholders' equity	10,951,307	10,351,120
Reportable Legal Entities [Member] | Non-Guarantor Other Subsidiaries [Member]
Condensed Balance Sheet Statements Captions [Line Items]
Current assets	972,820	1,022,340
Property and equipment, net	6,392,014	6,125,722
Investments in subsidiaries	0	0
Investments in the MGP Operating Partnership	831,494	862,037
Investments in and advances to unconsolidated affiliates	29,119	5,394
Intercompany accounts	0	0
Other non-current assets	4,932,872	5,134,220
Total assets	13,158,319	13,149,713
Current liabilities	1,224,752	1,609,110
Intercompany accounts	202,631	213,959
Deferred income taxes, net	240,970	360,409
Long-term debt, net	2,365,014	2,131,015
Other long-term obligations	2,247,584	2,305,353
Total liabilities	6,280,951	6,619,846
Redeemable noncontrolling interests	102,250	79,778
MGM Resorts International stockholders' equity	4,383,581	4,040,676
Noncontrolling interests	2,391,537	2,409,413
Total stockholders' equity	6,775,118	6,450,089
Total liabilities and stockholders' equity	13,158,319	13,149,713
Elimination [Member]
Condensed Balance Sheet Statements Captions [Line Items]
Current assets	(7,701)	(7,323)
Property and equipment, net	(9,753,625)	(10,033,422)
Investments in subsidiaries	(25,820,313)	(24,344,915)
Investments in the MGP Operating Partnership	(4,266,096)	(4,411,100)
Investments in and advances to unconsolidated affiliates	25,000	25,000
Intercompany accounts	(7,135,263)	(5,998,499)
Other non-current assets	(43,015)	(44,588)
Total assets	(47,001,013)	(44,814,847)
Current liabilities	(237,276)	(213,540)
Intercompany accounts	(7,135,263)	(5,998,499)
Deferred income taxes, net	(29,720)	(28,544)
Long-term debt, net	0	0
Other long-term obligations	(9,453,924)	(9,501,171)
Total liabilities	(16,856,183)	(15,741,754)
Redeemable noncontrolling interests	0	0
MGM Resorts International stockholders' equity	(30,144,830)	(29,073,093)
Noncontrolling interests	0	0
Total stockholders' equity	(30,144,830)	(29,073,093)
Total liabilities and stockholders' equity	$ (47,001,013)	$ (44,814,847)

Condensed Consolidating Finan_4

Condensed Consolidating Financial Information - Schedule of Condensed Consolidating Statement of Operations and Comprehensive Income Information (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Condensed Income Statements Captions [Line Items]
Net revenues	$ 3,052,862	$ 3,029,302	$ 2,858,695	$ 2,822,237	$ 2,597,605	$ 2,830,175	$ 2,652,133	$ 2,717,566	$ 11,763,096	$ 10,797,479	$ 9,478,269
Equity in subsidiaries' earnings									0	0	0
Expenses
Casino and hotel operations									6,918,875	6,193,122	5,521,221
General and administrative									1,764,638	1,559,575	1,378,534
Corporate expense									419,204	356,872	312,705
NV Energy exit expense										(40,629)	139,335
Preopening and start-up expenses									151,392	118,475	140,075
Property transactions, net									9,147	50,279	17,078
Gain on Borgata transaction									0	0	(430,118)
Depreciation and amortization									1,178,044	993,480	849,527
Total expenses									10,441,300	9,231,174	7,928,357
Income (loss) from unconsolidated affiliates									147,690	146,222	528,287
Operating income	335,751	410,903	363,075	359,757	223,414	492,704	499,898	496,511	1,469,486	1,712,527	2,078,199
Interest expense, net of amounts capitalized									(769,513)	(668,745)	(694,773)
Other, net									(65,967)	(82,992)	(125,837)
Income before income taxes									634,006	960,790	1,257,589
Benefit (provision) for income taxes	(92,000)			72,000					(50,112)	1,127,394	(21,743)
Net income	5,760	171,410	140,423	266,301	1,418,993	175,744	240,873	252,574	583,894	2,088,184	1,235,846
Less: Net income attributable to noncontrolling interests									(117,122)	(136,132)	(135,438)
Net income attributable to MGM Resorts International	(23,327)	142,878	123,777	223,444	1,387,413	148,363	209,864	206,412	466,772	1,952,052	1,100,408
Net income	$ 5,760	$ 171,410	$ 140,423	$ 266,301	$ 1,418,993	$ 175,744	$ 240,873	$ 252,574	583,894	2,088,184	1,235,846
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustment									(13,022)	(43,188)	(2,680)
Unrealized gain on cash flow hedges									3,576	7,995	1,879
Other comprehensive loss									(9,446)	(35,193)	(801)
Comprehensive income									574,448	2,052,991	1,235,045
Less: Comprehensive income attributable to noncontrolling interests									(112,622)	(119,700)	(134,680)
Comprehensive income attributable to MGM Resorts International									461,826	1,933,291	1,100,365
Reportable Legal Entities [Member] | Parent [Member]
Condensed Income Statements Captions [Line Items]
Net revenues									0	0	0
Equity in subsidiaries' earnings									1,216,482	1,391,725	1,779,119
Expenses
Casino and hotel operations									11,130	10,784	9,063
General and administrative									9,945	8,742	6,834
Corporate expense									156,503	127,092	131,938
NV Energy exit expense										0	0
Preopening and start-up expenses									0	0	0
Property transactions, net									0	0	0
Gain on Borgata transaction											0
Depreciation and amortization									0	0	0
Total expenses									177,578	146,618	147,835
Income (loss) from unconsolidated affiliates									0	0	0
Operating income									1,038,904	1,245,107	1,631,284
Interest expense, net of amounts capitalized									(480,985)	(466,907)	(562,536)
Other, net									63,722	26,215	(7,864)
Income before income taxes									621,641	804,415	1,060,884
Benefit (provision) for income taxes									(154,869)	1,147,637	39,524
Net income									466,772	1,952,052	1,100,408
Less: Net income attributable to noncontrolling interests									0	0	0
Net income attributable to MGM Resorts International									466,772	1,952,052	1,100,408
Net income									466,772	1,952,052	1,100,408
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustment									(7,422)	(23,995)	(1,477)
Unrealized gain on cash flow hedges									2,476	5,234	1,434
Other comprehensive loss									(4,946)	(18,761)	(43)
Comprehensive income									461,826	1,933,291	1,100,365
Less: Comprehensive income attributable to noncontrolling interests									0	0	0
Comprehensive income attributable to MGM Resorts International									461,826	1,933,291	1,100,365
Reportable Legal Entities [Member] | Guarantor Subsidiaries [Member]
Condensed Income Statements Captions [Line Items]
Net revenues									7,647,304	7,649,990	7,050,893
Equity in subsidiaries' earnings									116,676	156,081	174,587
Expenses
Casino and hotel operations									4,350,634	4,262,212	4,027,602
General and administrative									1,238,461	1,180,989	1,137,027
Corporate expense									216,318	200,801	160,887
NV Energy exit expense										(40,629)	139,335
Preopening and start-up expenses									26,100	8,258	8,775
Property transactions, net									(15,955)	43,985	16,449
Gain on Borgata transaction											(430,118)
Depreciation and amortization									622,552	649,676	524,123
Total expenses									6,438,110	6,305,292	5,584,080
Income (loss) from unconsolidated affiliates									148,866	147,234	528,605
Operating income									1,474,736	1,648,013	2,170,005
Interest expense, net of amounts capitalized									(510)	(982)	(1,500)
Other, net									(444,897)	(402,602)	(324,141)
Income before income taxes									1,029,329	1,244,429	1,844,364
Benefit (provision) for income taxes									0	0	(22,579)
Net income									1,029,329	1,244,429	1,821,785
Less: Net income attributable to noncontrolling interests									0	0	0
Net income attributable to MGM Resorts International									1,029,329	1,244,429	1,821,785
Net income									1,029,329	1,244,429	1,821,785
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustment									(7,422)	(23,995)	(1,477)
Unrealized gain on cash flow hedges									0	0	0
Other comprehensive loss									(7,422)	(23,995)	(1,477)
Comprehensive income									1,021,907	1,220,434	1,820,308
Less: Comprehensive income attributable to noncontrolling interests									0	0	0
Comprehensive income attributable to MGM Resorts International									1,021,907	1,220,434	1,820,308
Reportable Legal Entities [Member] | Non-Guarantor MGP Subsidiaries [Member]
Condensed Income Statements Captions [Line Items]
Net revenues									1,002,444	765,695	467,548
Equity in subsidiaries' earnings									0	0	0
Expenses
Casino and hotel operations									88,053	0	0
General and administrative									96,607	84,348	68,063
Corporate expense									48,675	34,085	20,360
NV Energy exit expense										0	0
Preopening and start-up expenses									0	0	0
Property transactions, net									20,319	34,022	4,684
Gain on Borgata transaction											0
Depreciation and amortization									273,031	260,455	220,667
Total expenses									526,685	412,910	313,774
Income (loss) from unconsolidated affiliates									0	0	0
Operating income									475,759	352,785	153,774
Interest expense, net of amounts capitalized									(215,532)	(184,175)	(115,438)
Other, net									(4,690)	2,286	(726)
Income before income taxes									255,537	170,896	37,610
Benefit (provision) for income taxes									(10,835)	(4,906)	(2,264)
Net income									244,702	165,990	35,346
Less: Net income attributable to noncontrolling interests									(67,065)	(41,775)	(29,938)
Net income attributable to MGM Resorts International									177,637	124,215	5,408
Net income									244,702	165,990	35,346
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustment									0	0	0
Unrealized gain on cash flow hedges									4,128	9,782	1,879
Other comprehensive loss									4,128	9,782	1,879
Comprehensive income									248,830	175,772	37,225
Less: Comprehensive income attributable to noncontrolling interests									(68,165)	(44,536)	(30,383)
Comprehensive income attributable to MGM Resorts International									180,665	131,236	6,842
Reportable Legal Entities [Member] | Non-Guarantor Other Subsidiaries [Member]
Condensed Income Statements Captions [Line Items]
Net revenues									3,983,575	3,151,304	2,430,795
Equity in subsidiaries' earnings									0	0	0
Expenses
Casino and hotel operations									2,491,007	1,923,942	1,487,975
General and administrative									495,015	369,844	214,839
Corporate expense									21,317	(515)	(194)
NV Energy exit expense										0	0
Preopening and start-up expenses									125,292	110,217	131,300
Property transactions, net									25,033	6,294	(246)
Gain on Borgata transaction											0
Depreciation and amortization									543,606	343,804	261,730
Total expenses									3,701,270	2,753,586	2,095,404
Income (loss) from unconsolidated affiliates									(1,176)	(1,012)	(318)
Operating income									281,129	396,706	335,073
Interest expense, net of amounts capitalized									(72,486)	(16,681)	(15,299)
Other, net									(187,786)	(142,997)	(93,145)
Income before income taxes									20,857	237,028	226,629
Benefit (provision) for income taxes									115,592	(15,337)	(36,424)
Net income									136,449	221,691	190,205
Less: Net income attributable to noncontrolling interests									(50,057)	(94,357)	(105,500)
Net income attributable to MGM Resorts International									86,392	127,334	84,705
Net income									136,449	221,691	190,205
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustment									(13,022)	(43,188)	(2,680)
Unrealized gain on cash flow hedges									0	0	0
Other comprehensive loss									(13,022)	(43,188)	(2,680)
Comprehensive income									123,427	178,503	187,525
Less: Comprehensive income attributable to noncontrolling interests									(44,457)	(75,164)	(104,297)
Comprehensive income attributable to MGM Resorts International									78,970	103,339	83,228
Elimination [Member]
Condensed Income Statements Captions [Line Items]
Net revenues									(870,227)	(769,510)	(470,967)
Equity in subsidiaries' earnings									(1,333,158)	(1,547,806)	(1,953,706)
Expenses
Casino and hotel operations									(21,949)	(3,816)	(3,419)
General and administrative									(75,390)	(84,348)	(48,229)
Corporate expense									(23,609)	(4,591)	(286)
NV Energy exit expense										0	0
Preopening and start-up expenses									0	0	0
Property transactions, net									(20,250)	(34,022)	(3,809)
Gain on Borgata transaction											0
Depreciation and amortization									(261,145)	(260,455)	(156,993)
Total expenses									(402,343)	(387,232)	(212,736)
Income (loss) from unconsolidated affiliates									0	0	0
Operating income									(1,801,042)	(1,930,084)	(2,211,937)
Interest expense, net of amounts capitalized									0	0	0
Other, net									507,684	434,106	300,039
Income before income taxes									(1,293,358)	(1,495,978)	(1,911,898)
Benefit (provision) for income taxes									0	0	0
Net income									(1,293,358)	(1,495,978)	(1,911,898)
Less: Net income attributable to noncontrolling interests									0	0	0
Net income attributable to MGM Resorts International									(1,293,358)	(1,495,978)	(1,911,898)
Net income									(1,293,358)	(1,495,978)	(1,911,898)
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustment									14,844	47,990	2,954
Unrealized gain on cash flow hedges									(3,028)	(7,021)	(1,434)
Other comprehensive loss									11,816	40,969	1,520
Comprehensive income									(1,281,542)	(1,455,009)	(1,910,378)
Less: Comprehensive income attributable to noncontrolling interests									0	0	0
Comprehensive income attributable to MGM Resorts International									$ (1,281,542)	$ (1,455,009)	$ (1,910,378)

Condensed Consolidating Finan_5

Condensed Consolidating Financial Information - Schedule of Condensed Consolidating Statement of Cash Flows Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Cash flows from operating activities
Net cash provided by (used in) operating activities	$ 1,722,539	$ 2,206,411	$ 1,533,972
Cash flows from investing activities
Capital expenditures, net of construction payable	(1,486,843)	(1,864,082)	(2,262,473)
Dispositions of property and equipment	25,612	718	3,944
Proceeds from partial disposition of investment in unconsolidated affiliate	0	0	15,000
Proceeds from sale of business units and investment in unconsolidated affiliate	163,616
Investments in and advances to unconsolidated affiliates	(56,295)	(16,727)	(3,633)
Distributions from unconsolidated affiliates in excess of cumulative earnings	322,631	301,211	542,097
Intercompany accounts	0	0	0
Other	(17,208)	(1,712)	(11,696)
Net cash used in investing activities	(2,083,021)	(1,580,592)	(2,276,204)
Proceeds from sale of business units and investment in unconsolidated affiliate	163,616	0	0
Cash flows from financing activities
Net borrowings under bank credit facilities – maturities of 90 days or less	1,242,259	15,001	491,032
Borrowings under bank credit facilities – maturities longer than 90 days	0	0	1,845,375
Repayments under bank credit facilities – maturities longer than 90 days	0	0	(1,845,375)
Issuance of long-term debt	1,000,000	350,000	2,050,000
Retirement of senior debentures	(2,265)	(502,669)	(2,258,053)
Repayment of Borgata credit facility	0	0	(583,598)
Debt issuance costs	(76,519)	(9,977)	(139,584)
Issuance of MGM Growth Properties Class A shares in public offering		404,685	1,207,500
MGM Growth Properties Class A share issuance costs	0	(17,137)	(75,032)
Dividends paid to common shareholders	(260,592)	(252,014)	0
Acquisition of MGM China shares	0	0	(100,000)
MGP dividends paid to consolidated subsidiaries	0	0	0
Distributions to noncontrolling interest owners	(184,932)	(170,402)	(103,367)
Intercompany accounts	0	0	0
Purchases of common stock	(1,283,333)	(327,500)	0
Proceeds from issuance of redeemable noncontrolling interests	0	0	47,325
Other	(45,384)	(58,765)	(16,801)
Net cash provided by (used in) financing activities	389,234	(568,778)	519,422
Effect of exchange rate on cash	(1,985)	(3,627)	(921)
Cash and cash equivalents
Net increase (decrease) for the period	26,767	53,414	(223,731)
Balance, beginning of period	1,499,995	1,446,581	1,670,312
Balance, end of period	1,526,762	1,499,995	1,446,581
Northfield Park associates LLC [Member]
Cash flows from investing activities
Acquisition, net of cash acquired	(1,034,534)	0	0
National Harbor [Member]
Cash flows from investing activities
Acquisition, net of cash acquired		0
Borgata [Member]
Cash flows from investing activities
Acquisition, net of cash acquired	0	0	(559,443)
Cash flows from financing activities
Repayment of Borgata credit facility			(583,598)
Reportable Legal Entities [Member] | Parent [Member]
Cash flows from operating activities
Net cash provided by (used in) operating activities	(460,117)	(584,252)	(603,136)
Cash flows from investing activities
Capital expenditures, net of construction payable	0	0	0
Dispositions of property and equipment	0	0	0
Proceeds from partial disposition of investment in unconsolidated affiliate			0
Proceeds from sale of business units and investment in unconsolidated affiliate	0
Investments in and advances to unconsolidated affiliates	0	0	0
Distributions from unconsolidated affiliates in excess of cumulative earnings	0	0	0
Intercompany accounts	0	462,500	0
Other	0	0	0
Net cash used in investing activities	0	462,500	0
Cash flows from financing activities
Net borrowings under bank credit facilities – maturities of 90 days or less	377,500	122,500	(2,016,000)
Borrowings under bank credit facilities – maturities longer than 90 days			1,845,375
Repayments under bank credit facilities – maturities longer than 90 days			(1,845,375)
Issuance of long-term debt	1,000,000	0	500,000
Retirement of senior debentures	0	(502,669)	(2,255,392)
Debt issuance costs	(26,125)	0	(29,871)
Issuance of MGM Growth Properties Class A shares in public offering		0	0
MGM Growth Properties Class A share issuance costs		0	0
Dividends paid to common shareholders	(260,592)	(252,014)
Acquisition of MGM China shares			(100,000)
MGP dividends paid to consolidated subsidiaries	0	0	0
Distributions to noncontrolling interest owners	0	0	0
Intercompany accounts	917,760	1,042,111	4,082,303
Purchases of common stock	(1,283,333)	(327,500)
Proceeds from issuance of redeemable noncontrolling interests			0
Other	(32,225)	(33,801)	(16,765)
Net cash provided by (used in) financing activities	692,985	48,627	164,275
Effect of exchange rate on cash	0	0	0
Cash and cash equivalents
Net increase (decrease) for the period	232,868	(73,125)	(438,861)
Balance, beginning of period	26,870	99,995	538,856
Balance, end of period	259,738	26,870	99,995
Reportable Legal Entities [Member] | Guarantor Subsidiaries [Member]
Cash flows from operating activities
Net cash provided by (used in) operating activities	1,271,583	1,152,083	1,313,595
Cash flows from investing activities
Capital expenditures, net of construction payable	(696,076)	(482,024)	(290,455)
Dispositions of property and equipment	25,507	502	1,940
Proceeds from partial disposition of investment in unconsolidated affiliate			15,000
Proceeds from sale of business units and investment in unconsolidated affiliate	163,616
Investments in and advances to unconsolidated affiliates	(56,295)	(16,727)	(3,633)
Distributions from unconsolidated affiliates in excess of cumulative earnings	322,631	301,211	542,097
Intercompany accounts	(1,136,764)	(1,186,942)	(1,562,442)
Other	(13,416)	(1,754)	(7,651)
Net cash used in investing activities	(1,390,797)	(1,385,734)	(1,864,587)
Cash flows from financing activities
Net borrowings under bank credit facilities – maturities of 90 days or less	0	0	4,094,850
Borrowings under bank credit facilities – maturities longer than 90 days			0
Repayments under bank credit facilities – maturities longer than 90 days			0
Issuance of long-term debt	0	0	0
Retirement of senior debentures	(2,265)	0	(2,661)
Debt issuance costs	0	0	0
Issuance of MGM Growth Properties Class A shares in public offering		0	0
MGM Growth Properties Class A share issuance costs		0	0
Dividends paid to common shareholders	0	0
Acquisition of MGM China shares			0
MGP dividends paid to consolidated subsidiaries	0	0	0
Distributions to noncontrolling interest owners	0	0	0
Intercompany accounts	207,015	248,626	(2,954,054)
Purchases of common stock	0	0
Proceeds from issuance of redeemable noncontrolling interests			0
Other	(6,979)	(11,644)	0
Net cash provided by (used in) financing activities	197,771	236,982	554,537
Effect of exchange rate on cash	0	0	0
Cash and cash equivalents
Net increase (decrease) for the period	78,557	3,331	3,545
Balance, beginning of period	311,044	307,713	304,168
Balance, end of period	389,601	311,044	307,713
Reportable Legal Entities [Member] | Non-Guarantor MGP Subsidiaries [Member]
Cash flows from operating activities
Net cash provided by (used in) operating activities	580,207	482,578	297,781
Cash flows from investing activities
Capital expenditures, net of construction payable	(1,578)	(488)	(138,987)
Dispositions of property and equipment	0	0	0
Proceeds from partial disposition of investment in unconsolidated affiliate			0
Proceeds from sale of business units and investment in unconsolidated affiliate	0
Investments in and advances to unconsolidated affiliates	0	0	0
Distributions from unconsolidated affiliates in excess of cumulative earnings	0	0	0
Intercompany accounts	0	0	0
Other	0	0	0
Net cash used in investing activities	(1,036,112)	(462,988)	(138,987)
Cash flows from financing activities
Net borrowings under bank credit facilities – maturities of 90 days or less	727,750	(466,875)	(2,411,600)
Borrowings under bank credit facilities – maturities longer than 90 days			0
Repayments under bank credit facilities – maturities longer than 90 days			0
Issuance of long-term debt	0	350,000	1,550,000
Retirement of senior debentures	0	0	0
Debt issuance costs	(17,490)	(5,598)	(77,163)
Issuance of MGM Growth Properties Class A shares in public offering		404,685	1,207,500
MGM Growth Properties Class A share issuance costs		(17,137)	(75,032)
Dividends paid to common shareholders	0	0
Acquisition of MGM China shares			0
MGP dividends paid to consolidated subsidiaries	(333,192)	(290,091)	(113,414)
Distributions to noncontrolling interest owners	(121,069)	(95,344)	(37,415)
Intercompany accounts	0	0	158,822
Purchases of common stock	0	0
Proceeds from issuance of redeemable noncontrolling interests			0
Other	0	0	0
Net cash provided by (used in) financing activities	255,999	(120,360)	201,698
Effect of exchange rate on cash	0	0	0
Cash and cash equivalents
Net increase (decrease) for the period	(199,906)	(100,770)	360,492
Balance, beginning of period	259,722	360,492	0
Balance, end of period	59,816	259,722	360,492
Reportable Legal Entities [Member] | Non-Guarantor Other Subsidiaries [Member]
Cash flows from operating activities
Net cash provided by (used in) operating activities	330,866	1,156,002	525,732
Cash flows from investing activities
Capital expenditures, net of construction payable	(789,189)	(1,381,570)	(1,833,031)
Dispositions of property and equipment	105	216	2,004
Proceeds from partial disposition of investment in unconsolidated affiliate			0
Proceeds from sale of business units and investment in unconsolidated affiliate	0
Investments in and advances to unconsolidated affiliates	0	0	0
Distributions from unconsolidated affiliates in excess of cumulative earnings	0	0	0
Intercompany accounts	0	0	0
Other	(3,792)	42	(4,045)
Net cash used in investing activities	(792,876)	(1,381,312)	(1,835,072)
Cash flows from financing activities
Net borrowings under bank credit facilities – maturities of 90 days or less	137,009	359,376	823,782
Borrowings under bank credit facilities – maturities longer than 90 days			0
Repayments under bank credit facilities – maturities longer than 90 days			0
Issuance of long-term debt	0	0	0
Retirement of senior debentures	0	0	0
Debt issuance costs	(32,904)	(4,379)	(32,550)
Issuance of MGM Growth Properties Class A shares in public offering		0	0
MGM Growth Properties Class A share issuance costs		0	0
Dividends paid to common shareholders	0	0
Acquisition of MGM China shares			0
MGP dividends paid to consolidated subsidiaries	0	0	0
Distributions to noncontrolling interest owners	(63,863)	(75,058)	(65,952)
Intercompany accounts	345,181	186,296	388,785
Purchases of common stock	0	0
Proceeds from issuance of redeemable noncontrolling interests			47,325
Other	(6,180)	(13,320)	(36)
Net cash provided by (used in) financing activities	379,243	452,915	1,161,354
Effect of exchange rate on cash	(1,985)	(3,627)	(921)
Cash and cash equivalents
Net increase (decrease) for the period	(84,752)	223,978	(148,907)
Balance, beginning of period	902,359	678,381	827,288
Balance, end of period	817,607	902,359	678,381
Reportable Legal Entities [Member] | Northfield Park associates LLC [Member] | Parent [Member]
Cash flows from investing activities
Acquisition, net of cash acquired	0
Reportable Legal Entities [Member] | Northfield Park associates LLC [Member] | Guarantor Subsidiaries [Member]
Cash flows from investing activities
Acquisition, net of cash acquired	0
Reportable Legal Entities [Member] | Northfield Park associates LLC [Member] | Non-Guarantor MGP Subsidiaries [Member]
Cash flows from investing activities
Acquisition, net of cash acquired	(1,034,534)
Reportable Legal Entities [Member] | Northfield Park associates LLC [Member] | Non-Guarantor Other Subsidiaries [Member]
Cash flows from investing activities
Acquisition, net of cash acquired	0
Reportable Legal Entities [Member] | National Harbor [Member] | Parent [Member]
Cash flows from investing activities
Acquisition, net of cash acquired		0
Reportable Legal Entities [Member] | National Harbor [Member] | Guarantor Subsidiaries [Member]
Cash flows from investing activities
Acquisition, net of cash acquired		0
Reportable Legal Entities [Member] | National Harbor [Member] | Non-Guarantor MGP Subsidiaries [Member]
Cash flows from investing activities
Acquisition, net of cash acquired		(462,500)
Reportable Legal Entities [Member] | National Harbor [Member] | Non-Guarantor Other Subsidiaries [Member]
Cash flows from investing activities
Acquisition, net of cash acquired		0
Reportable Legal Entities [Member] | Borgata [Member] | Parent [Member]
Cash flows from investing activities
Acquisition, net of cash acquired			0
Cash flows from financing activities
Repayment of Borgata credit facility			0
Reportable Legal Entities [Member] | Borgata [Member] | Guarantor Subsidiaries [Member]
Cash flows from investing activities
Acquisition, net of cash acquired			(559,443)
Cash flows from financing activities
Repayment of Borgata credit facility			(583,598)
Reportable Legal Entities [Member] | Borgata [Member] | Non-Guarantor MGP Subsidiaries [Member]
Cash flows from investing activities
Acquisition, net of cash acquired			0
Cash flows from financing activities
Repayment of Borgata credit facility			0
Reportable Legal Entities [Member] | Borgata [Member] | Non-Guarantor Other Subsidiaries [Member]
Cash flows from investing activities
Acquisition, net of cash acquired			0
Cash flows from financing activities
Repayment of Borgata credit facility			0
Elimination [Member]
Cash flows from operating activities
Net cash provided by (used in) operating activities	0	0	0
Cash flows from investing activities
Capital expenditures, net of construction payable	0	0	0
Dispositions of property and equipment	0	0	0
Proceeds from partial disposition of investment in unconsolidated affiliate			0
Proceeds from sale of business units and investment in unconsolidated affiliate	0
Investments in and advances to unconsolidated affiliates	0	0	0
Distributions from unconsolidated affiliates in excess of cumulative earnings	0	0	0
Intercompany accounts	1,136,764	724,442	1,562,442
Other	0	0	0
Net cash used in investing activities	1,136,764	1,186,942	1,562,442
Cash flows from financing activities
Net borrowings under bank credit facilities – maturities of 90 days or less	0	0	0
Borrowings under bank credit facilities – maturities longer than 90 days			0
Repayments under bank credit facilities – maturities longer than 90 days			0
Issuance of long-term debt	0	0	0
Retirement of senior debentures	0	0	0
Debt issuance costs	0	0	0
Issuance of MGM Growth Properties Class A shares in public offering		0	0
MGM Growth Properties Class A share issuance costs		0	0
Dividends paid to common shareholders	0	0
Acquisition of MGM China shares			0
MGP dividends paid to consolidated subsidiaries	333,192	290,091	113,414
Distributions to noncontrolling interest owners	0	0	0
Intercompany accounts	(1,469,956)	(1,477,033)	(1,675,856)
Purchases of common stock	0	0
Proceeds from issuance of redeemable noncontrolling interests			0
Other	0	0	0
Net cash provided by (used in) financing activities	(1,136,764)	(1,186,942)	(1,562,442)
Effect of exchange rate on cash	0	0	0
Cash and cash equivalents
Net increase (decrease) for the period	0	0	0
Balance, beginning of period	0	0	0
Balance, end of period	0	0	0
Elimination [Member] | Northfield Park associates LLC [Member]
Cash flows from investing activities
Acquisition, net of cash acquired	$ 0
Elimination [Member] | National Harbor [Member]
Cash flows from investing activities
Acquisition, net of cash acquired		$ 462,500
Elimination [Member] | Borgata [Member]
Cash flows from investing activities
Acquisition, net of cash acquired			0
Cash flows from financing activities
Repayment of Borgata credit facility			$ 0

Selected Quarterly Financial _3

Selected Quarterly Financial Results (Unaudited) - Schedule of Selected Quarterly Financial Results (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Quarterly Financial Information Disclosure [Abstract]
Net revenues	$ 3,052,862	$ 3,029,302	$ 2,858,695	$ 2,822,237	$ 2,597,605	$ 2,830,175	$ 2,652,133	$ 2,717,566	$ 11,763,096	$ 10,797,479	$ 9,478,269
Operating income	335,751	410,903	363,075	359,757	223,414	492,704	499,898	496,511	1,469,486	1,712,527	2,078,199
Net income	5,760	171,410	140,423	266,301	1,418,993	175,744	240,873	252,574	583,894	2,088,184	1,235,846
Net income attributable to MGM Resorts International	$ (23,327)	$ 142,878	$ 123,777	$ 223,444	$ 1,387,413	$ 148,363	$ 209,864	$ 206,412	$ 466,772	$ 1,952,052	$ 1,100,408
Earnings (loss) per share-basic	$ (0.06)	$ 0.26	$ 0.21	$ 0.39	$ 2.42	$ 0.26	$ 0.36	$ 0.36	$ 0.82	$ 3.38	$ 1.94
Earnings (loss) per share-diluted	$ (0.06)	$ 0.26	$ 0.21	$ 0.38	$ 2.39	$ 0.26	$ 0.36	$ 0.36	$ 0.81	$ 3.34	$ 1.92

Selected Quarterly Financial _4

Selected Quarterly Financial Results - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended					12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Jun. 30, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Quarterly Financial Information [Line Items]
Tax (benefit) expense	$ 92,000		$ (72,000)			$ 50,112	$ (1,127,394)	$ 21,743
Tax (benefit) expense, per share	$ 0.17		$ (0.13)			$ 0
Gain on acquisition						$ 0	0	430,118
Borgata [Member]
Quarterly Financial Information [Line Items]
Gain on acquisition								$ 430,000
Gain on property tax settlement					$ 36,000		$ 36,000
Gain on property tax settlement, per share					$ 0.04		$ 0.04
Crystals [Member]
Quarterly Financial Information [Line Items]
Tax (benefit) expense				$ 1,400,000			$ 1,400,000
Tax (benefit) expense, per share				$ 2.49			$ 2.46
Crystals [Member] | N V Energy
Quarterly Financial Information [Line Items]
NV Energy exit expense					$ 41,000		$ 41,000
NV Energy exit expense per share					$ 0.05		$ 0.05
Grand Victoria [Member]
Quarterly Financial Information [Line Items]
Recognized gain on sale, unconsolidated affiliates and reversal of basis differences		$ 45,000				$ 45,000
Gain on acquisition per share		$ 0.07				$ 0.06
Mandarin Oriental [Member]
Quarterly Financial Information [Line Items]
Gain on acquisition		$ 12,000				$ 12,000
Gain on acquisition per share		$ 0.02				$ 0.02
Mandalay Bay
Quarterly Financial Information [Line Items]
Business interruption insurance proceeds	$ 24,000					$ 24,000
Business interruption insurance proceeds, per share	$ 0.04					$ 0.03

Schedule II - Valuation and Q_2

Schedule II - Valuation and Qualifying Accounts (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Movement in Valuation Allowances And Reserves [Roll Forward]
Balance at Beginning of Period	$ 92,571	$ 97,920	$ 89,789
Provision for Doubtful Accounts	39,762	20,603	10,863
Write-offs, Net of Recoveries	(41,558)	(25,952)	(2,732)
Balance at End of Period	90,775	92,571	97,920
Deferred income tax valuation allowance [Member]
Movement in Valuation Allowances And Reserves [Roll Forward]
Balance at Beginning of Period	2,513,738	2,583,274	2,807,131
Increase	0	0	2,975
Decrease	(36,035)	(69,536)	(226,832)
Balance at End of Period	$ 2,477,703	$ 2,513,738	$ 2,583,274