MGM Resorts International (MGM) 10-K 3 Mar 14 2013 FY Annual report Financial data

Document_and_Entity_Informatio

Document and Entity Information (USD $)	12 Months Ended
In Billions, except Share data, unless otherwise specified	Dec. 31, 2013	Feb. 21, 2014	Jun. 30, 2013
Document And Entity Information [Abstract]	'	'	'
Document Type	'10-K	'	'
Amendment Flag	'false	'	'
Document Period End Date	31-Dec-13	'	'
Document Fiscal Year Focus	'2013	'	'
Document Fiscal Period Focus	'FY	'	'
Trading Symbol	'MGM	'	'
Entity Registrant Name	'MGM Resorts International	'	'
Entity Central Index Key	'0000789570	'	'
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 Common Stock, Shares Outstanding	'	490,430,177	'
Entity Public Float	'	'	$4.20

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Current assets	'	'
Cash and cash equivalents	$1,803,669	$1,543,509
Accounts receivable, net	488,217	443,677
Inventories	107,907	107,577
Deferred income taxes, net	80,989	179,431
Prepaid expenses and other	238,657	232,898
Total current assets	2,719,439	2,507,092
Property and equipment, net	14,055,212	14,194,652
Other assets	'	'
Investments in and advances to unconsolidated affiliates	1,374,836	1,444,547
Goodwill	2,897,442	2,902,847
Other intangible assets, net	4,511,861	4,737,833
Other long-term assets, net	551,395	497,767
Total other assets	9,335,534	9,582,994
Total assets	26,110,185	26,284,738
Current liabilities	'	'
Accounts payable	241,192	199,620
Income taxes payable	14,813	1,350
Accrued interest on long-term debt	188,522	206,736
Other accrued liabilities	1,770,801	1,517,965
Total current liabilities	2,215,328	1,925,671
Deferred income taxes	2,430,414	2,473,889
Long-term debt	13,447,230	13,589,283
Other long-term obligations	141,590	179,879
Commitments and contingencies (Note 11)	'	'
Stockholders' equity	'	'
Common stock, $.01 par value: authorized 1,000,000,000 shares; issued and outstanding 490,360,628 and 489,234,401 shares	4,904	4,892
Capital in excess of par value	4,156,680	4,132,655
Retained earnings	57,092	213,698
Accumulated other comprehensive income	12,503	14,303
Total MGM Resorts International stockholders' equity	4,231,179	4,365,548
Noncontrolling interests	3,644,444	3,750,468
Total stockholders' equity	7,875,623	8,116,016
Total liabilities and stockholders' equity	$26,110,185	$26,284,738

Consolidated_Balance_Sheets_Pa

Consolidated Balance Sheets (Parenthetical) (USD $)	Dec. 31, 2013	Dec. 31, 2012
Statement Of Financial Position [Abstract]	'	'
Common stock, par value (in dollars per share)	$0.01	$0.01
Common stock, authorized shares	1,000,000,000	1,000,000,000
Common stock, issued shares	490,360,628	489,234,401
Common stock, outstanding shares	490,360,628	489,234,401

Consolidated_Statements_of_Ope

Consolidated Statements of Operations (USD $)	12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Revenues	'	'	'
Casino	$5,875,782	$5,319,489	$4,002,985
Rooms	1,646,303	1,588,770	1,547,765
Food and beverage	1,469,582	1,472,382	1,425,428
Entertainment	522,911	483,946	514,883
Retail	194,602	196,938	204,806
Other	490,349	482,547	485,661
Reimbursed costs	364,664	357,597	351,207
Total revenues, gross	10,564,193	9,901,669	8,532,735
Less: Promotional allowances	-754,530	-740,825	-683,423
Total revenues, net	9,809,663	9,160,844	7,849,312
Expenses	'	'	'
Casino	3,684,810	3,396,752	2,515,279
Rooms	516,605	507,856	485,751
Food and beverage	844,431	844,629	829,018
Entertainment	386,252	356,934	375,559
Retail	107,249	112,732	124,063
Other	354,705	344,782	345,484
Reimbursed costs	364,664	357,597	351,207
General and administrative	1,278,450	1,239,774	1,182,505
Corporate expense	216,745	235,007	174,971
Preopening and start-up expenses	13,314	2,127	-316
Property transactions, net	124,761	708,049	178,598
Gain on MGM China transaction	'	'	-3,496,005
Depreciation and amortization	849,225	927,697	817,146
Total expenses	8,741,211	9,033,936	3,883,260
Income (loss) from unconsolidated affiliates	43,060	-46,382	91,094
Operating income	1,111,512	80,526	4,057,146
Non-operating expense	'	'	'
Interest expense, net of amounts capitalized	-857,347	-1,116,358	-1,086,832
Non-operating items from unconsolidated affiliates	-157,338	-90,020	-119,013
Other, net	-9,062	-608,361	-19,670
Total non-operating income (expense)	-1,023,747	-1,814,739	-1,225,515
Income (loss) before income taxes	87,765	-1,734,213	2,831,631
Benefit (provision) for income taxes	-31,263	117,301	403,313
Net income (loss)	56,502	-1,616,912	3,234,944
Less: Net income attributable to noncontrolling interests	-213,108	-150,779	-120,307
Net income (loss) attributable to MGM Resorts International	($156,606)	($1,767,691)	$3,114,637
Net income (loss) per share of common stock attributable to MGM Resorts International	'	'	'
Basic	($0.32)	($3.62)	$6.37
Diluted	($0.32)	($3.62)	$5.62

Consolidated_Statements_of_Com

Consolidated Statements of Comprehensive Income (Loss) (USD $)	3 Months Ended								12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Statement Of Income And Comprehensive Income [Abstract]	'	'	'	'	'	'	'	'	'	'	'
Net income (loss)	$40,877	$23,625	($30,578)	$22,578	($1,188,497)	($154,674)	($70,434)	($203,307)	$56,502	($1,616,912)	$3,234,944
Other comprehensive income (loss), net of tax:	'	'	'	'	'	'	'	'	'	'	'
Foreign currency translation adjustment	'	'	'	'	'	'	'	'	-3,993	17,124	11,692
Other	'	'	'	'	'	'	'	'	115	-445	-37
Other comprehensive income (loss)	'	'	'	'	'	'	'	'	-3,878	16,679	11,655
Comprehensive income (loss)	'	'	'	'	'	'	'	'	52,624	-1,600,233	3,246,599
Less: comprehensive income attributable to noncontrolling interests	'	'	'	'	'	'	'	'	-211,030	-159,133	-125,683
Comprehensive income (loss) attributable to MGM Resorts International	'	'	'	'	'	'	'	'	($158,406)	($1,759,366)	$3,120,916

Consolidated_Statements_of_Cas

Consolidated Statements of Cash Flows (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Cash flows from operating activities	'	'	'
Net income (loss)	$56,502	($1,616,912)	$3,234,944
Adjustments to reconcile net income (loss) to net cash provided by operating activities:	'	'	'
Depreciation and amortization	849,225	927,697	817,146
Amortization of debt discounts, premiums and issuance costs	35,281	73,389	93,800
(Gain) loss on retirement of long-term debt	3,801	563,292	-717
Provision for doubtful accounts	14,969	57,068	39,093
Stock-based compensation	32,332	39,560	39,707
Property transactions, net	124,761	708,049	178,598
Gain on MGM China transaction	'	'	-3,496,005
Loss from unconsolidated affiliates	114,785	137,058	27,919
Distributions from unconsolidated affiliates	16,928	21,277	60,801
Deferred income taxes	58,917	-117,203	-394,437
Change in operating assets and liabilities:	'	'	'
Accounts receivable	-59,842	1,260	-155,043
Inventories	-336	5,183	-8,039
Income taxes receivable and payable, net	13,468	-5,978	183,649
Prepaid expenses and other	-38,790	-4,608	15,268
Prepaid Cotai land concession premium	-7,917	-56,372	'
Accounts payable and accrued liabilities	116,623	163,270	32,924
Other	-20,259	13,321	5,518
Net cash provided by operating activities	1,310,448	909,351	675,126
Cash flows from investing activities	'	'	'
Capital expenditures, net of construction payable	-562,124	-422,763	-301,244
Dispositions of property and equipment	18,030	426	348
Acquisition of MGM China, net of cash paid	'	'	407,046
Investments in and advances to unconsolidated affiliates	-28,953	-54,300	-128,848
Distributions from unconsolidated affiliates in excess of earnings	110	1,723	2,212
Investments in treasury securities- maturities longer than 90 days	-219,546	-285,469	-330,313
Proceeds from treasury securities- maturities longer than 90 days	252,592	315,438	330,130
Other	-20,246	-1,472	-643
Net cash used in investing activities	-560,137	-446,417	-21,312
Cash flows from financing activities	'	'	'
Net borrowings (repayments) under bank credit facilities - maturities of 90 days or less	-28,000	1,779,262	-305,880
Borrowings under bank credit facilities - maturities longer than 90 days	2,793,000	1,350,000	7,559,112
Repayments under bank credit facilities - maturities longer than 90 days	-2,793,000	-3,634,128	-6,352,384
Issuance of senior notes	500,000	4,100,000	311,415
Retirement of senior notes, including premiums paid	-612,262	-4,009,117	-493,816
Debt issuance costs	-23,576	-160,245	'
Distributions to noncontrolling interest owners	-318,348	-206,806	-3,768
Other	-7,522	-5,925	-2,757
Net cash provided by (used in) financing activities	-489,708	-786,959	711,922
Effect of exchange rate on cash	-443	1,621	1,213
Cash and cash equivalents	'	'	'
Net increase (decrease) for the period	260,160	-322,404	1,366,949
Balance, beginning of period	1,543,509	1,865,913	498,964
Balance, end of period	1,803,669	1,543,509	1,865,913
Supplemental cash flow disclosures	'	'	'
Interest paid, net of amounts capitalized	840,280	1,039,655	1,001,982
Federal, state and foreign income taxes paid, net of refunds	835	6,982	-172,018
Non-cash investing activity	'	'	'
Increase in investment in CityCenter related to change in completion guarantee liability	92,956	84,190	54,352
Increase in construction accounts payable	$39,287	$27,368	$24,716

Consolidated_Statements_of_Sto

Consolidated Statements of Stockholders' Equity (USD $)	Total	Common Stock [Member]	Capital in Excess of Par Value [Member]	Retained Earning (Accumulated Deficit) [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total MGM Resorts International Stockholder's Equity [Member]	Non-controlling Interests [Member]
In Thousands
Beginning Balance at Dec. 31, 2010	$2,932,162	$4,885	$4,060,826	($1,133,248)	($301)	$2,932,162	'
Beginning Balance, Shares at Dec. 31, 2010	'	488,513	'	'	'	'	'
Net income (loss)	3,234,944	'	'	3,114,637	'	3,114,637	120,307
Currency translation adjustment	11,692	'	'	'	6,316	6,316	5,376
Other comprehensive income (loss) from unconsolidated affiliate, net	-37	'	'	'	-37	-37	'
MGM China acquisition	3,672,173	'	'	'	'	'	3,672,173
Stock-based compensation	44,279	'	42,723	'	'	42,723	1,556
Change in excess tax benefit from stock-based compensation	-8,042	'	-8,042	'	'	-8,042	'
Issuance of common stock pursuant to stock-based compensation awards	-1,327	3	-1,330	'	'	-1,327	'
Issuance of common stock pursuant to stock-based compensation awards, Share	'	322	'	'	'	'	'
Cash distributions to noncontrolling interest owners	-3,768	'	'	'	'	'	-3,768
Other	146	'	146	'	'	146	'
Balances, December 31, 2012 at Dec. 31, 2011	9,882,222	4,888	4,094,323	1,981,389	5,978	6,086,578	3,795,644
Ending Balance, Shares at Dec. 31, 2011	'	488,835	'	'	'	'	'
Net income (loss)	-1,616,912	'	'	-1,767,691	'	-1,767,691	150,779
Currency translation adjustment	17,124	'	'	'	8,770	8,770	8,354
Other comprehensive income (loss) from unconsolidated affiliate, net	-445	'	'	'	-445	-445	'
Stock-based compensation	43,428	'	40,566	'	'	40,566	2,862
Change in excess tax benefit from stock-based compensation	-301	'	-301	'	'	-301	'
Issuance of common stock pursuant to stock-based compensation awards	-1,930	4	-1,934	'	'	-1,930	'
Issuance of common stock pursuant to stock-based compensation awards, Share	'	399	'	'	'	'	'
Cash distributions to noncontrolling interest owners	-207,171	'	'	'	'	'	-207,171
Other	1	'	1	'	'	1	'
Balances, December 31, 2012 at Dec. 31, 2012	8,116,016	4,892	4,132,655	213,698	14,303	4,365,548	3,750,468
Ending Balance, Shares at Dec. 31, 2012	'	489,234	'	'	'	'	'
Net income (loss)	56,502	'	'	-156,606	'	-156,606	213,108
Currency translation adjustment	-3,993	'	'	'	-1,915	-1,915	-2,078
Other comprehensive income (loss) from unconsolidated affiliate, net	115	'	'	'	115	115	'
Stock-based compensation	33,422	'	30,374	'	'	30,374	3,048
Change in excess tax benefit from stock-based compensation	4,188	'	4,188	'	'	4,188	'
Issuance of common stock pursuant to stock-based compensation awards	-8,694	12	-8,706	'	'	-8,694	'
Issuance of common stock pursuant to stock-based compensation awards, Share	'	1,127	'	'	'	'	'
Cash distributions to noncontrolling interest owners	-318,344	'	'	'	'	'	-318,344
Other	-3,589	'	-1,831	'	'	-1,831	-1,758
Balances, December 31, 2012 at Dec. 31, 2013	$7,875,623	$4,904	$4,156,680	$57,092	$12,503	$4,231,179	$3,644,444
Ending Balance, Shares at Dec. 31, 2013	'	490,361	'	'	'	'	'

Organization

Organization	12 Months Ended
	Dec. 31, 2013
Accounting Policies [Abstract]	'
Organization	'
	NOTE 1 — ORGANIZATION
	Organization.     MGM Resorts International (the “Company”) is a Delaware corporation that acts largely as a holding company and, through wholly owned subsidiaries, owns and/or operates casino resorts. The Company owns and operates the following casino resorts in Las Vegas, Nevada: Bellagio, MGM Grand Las Vegas, The Mirage, Mandalay Bay, Luxor, New York-New York, Monte Carlo, 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. Other Nevada operations include Circus Circus Reno, Gold Strike in Jean and Railroad Pass in Henderson. Along with its local partners, the Company owns and operates MGM Grand Detroit in Detroit, Michigan. The Company owns and operates two resorts in Mississippi: Beau Rivage in Biloxi and Gold Strike Tunica. The Company also owns 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.
	The Company owns 51% and has a controlling interest in MGM China Holdings Limited (“MGM China”), which owns MGM Grand Paradise, S.A. (“MGM Grand Paradise”), the Macau company that owns and operates the MGM Macau resort and casino and the related gaming subconcession and land concession. On October 18, 2012, MGM Grand Paradise formally accepted a land concession contract with the government of Macau to develop a second resort and casino on an approximately 17.8 acre site in Cotai, Macau (“MGM Cotai”). The land concession contract became effective on January 9, 2013 when the Macau government published the agreement in the Official Gazette of Macau. MGM Cotai will be an integrated casino, hotel and entertainment complex with approximately 1,600 hotel rooms, 500 gaming tables and up to 2,500 slots. The total estimated project budget is $2.9 billion excluding development fees eliminated in consolidation, capitalized interest and land. See Note 3 for additional information related to MGM China.
	The Company owns 50% of CityCenter, located between Bellagio and Monte Carlo. 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, a casino resort; Mandarin Oriental Las Vegas, a non-gaming boutique hotel; Crystals, a retail, dining and entertainment district; and Vdara, a luxury condominium-hotel. In addition, CityCenter features residential units in the Residences at Mandarin Oriental and Veer. The Company receives a management fee of 2% of revenues for the management of Aria and Vdara, and 5% of EBITDA (as defined in the agreements governing the Company’s management of Aria and Vdara). In addition, the Company receives an annual fee of $3 million for the management of Crystals. See Note 6 and Note 18 for additional information related to CityCenter.
	The Company has 50% interests in Grand Victoria and Silver Legacy. Grand Victoria is a riverboat casino in Elgin, Illinois; an affiliate of Hyatt Gaming owns the other 50% of Grand Victoria and also operates the resort. Silver Legacy is located in Reno, adjacent to Circus Circus Reno, and the other 50% is owned by Eldorado LLC. See Note 6 for additional information related to Grand Victoria and Silver Legacy.
	The Maryland Video Lottery Facility Location Commission has awarded the Company the license to build and operate a world-class destination resort casino in Prince George’s County at National Harbor. Currently, the expected cost to develop and construct MGM National Harbor is approximately $1.0 billion, excluding capitalized interest and land related costs. The Company expects the resort to include a casino with approximately 3,600 slots, 160 table games including poker; a 300 suite hotel with luxury spa and rooftop pool; high end branded retail; fine and casual dining; a dedicated 3,000 seat theater venue; 35,000 square feet of meeting and event space; and a 5,000 space parking garage.
	The Company has two reportable segments: wholly owned domestic resorts and MGM China. See Note 17 for additional information about the Company’s segments.
	MGM Hospitality.   MGM Hospitality seeks to leverage the Company’s management expertise and well-recognized brands through strategic partnerships and international expansion opportunities. MGM Hospitality has entered into management agreements for non-gaming hotels in the Middle East, North Africa, India and, through its joint venture with Diaoyutai State Guesthouse, the People’s Republic of China. MGM Hospitality opened its first resort, MGM Grand Sanya, on Hainan Island in the People’s Republic of China in early 2012.
	Borgata.   The Company has a 50% economic interest in Borgata Hotel Casino & Spa (“Borgata”) located on Renaissance Pointe in the Marina area of Atlantic City, New Jersey. Boyd Gaming Corporation owns the other 50% of Borgata and also operates the resort. The Company’s interest is held in trust and was offered for sale pursuant to its amended settlement agreement with the New Jersey Division of Gaming Enforcement and approved by the New Jersey Casino Control Commission (“CCC”). The terms of the amended settlement agreement previously mandated the sale by March 2014. The Company had the right to direct the sale through March 2013 (the “divesture period”), subject to approval of the CCC, and the trustee was responsible for selling the trust property during the following 12-month period (the “terminal sale period”). On February 13, 2013, the settlement agreement was further amended to allow the Company to re-apply to the CCC for licensure in New Jersey and to defer expiration of these periods pending the outcome of the licensure process. The Company has submitted its licensure request to the CCC and there can be no assurances that such request will be approved or with respect to the timing of the licensure process. If the CCC denies the Company’s licensure request, then the divesture period will immediately end, and the terminal sale period will immediately begin, which will result in the Company’s Borgata interest being disposed of by the trustee pursuant to the terms of the settlement agreement.
	The Company consolidates the trust because it is the sole economic beneficiary and accounts for its interest in Borgata under the cost method. The Company reviews its investment carrying value whenever indicators of impairment exist and accordingly has recorded impairment charges in each of the years ended December 31, 2012 and 2011. See Note 16 for further discussion.
	As of December 31, 2013, the trust had $102 million of cash and investments, of which $87 million is held in U.S. treasury securities with maturities greater than three months but less than one year, and is recorded within “Prepaid expenses and other.” As of December 31, 2012, the trust had $135 million of cash and investments, of which $120 million was held in U.S. treasury securities with maturities greater than three months but less than one year.

Basis_of_Presentation_and_Sign

Basis of Presentation and Significant Accounting Policies	12 Months Ended
	Dec. 31, 2013
Accounting Policies [Abstract]	'
Basis of Presentation and Significant Accounting Policies	'
	NOTE 2 — BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES
	Principles of consolidation.   The consolidated financial statements include the accounts of the Company and its subsidiaries. The Company’s investments in unconsolidated affiliates which are 50% or less owned are accounted for under the equity method. The Company does not have significant variable interests in variable interest entities. All intercompany balances and transactions have been eliminated in consolidation.
	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 fair value of the Company’s treasury securities held by the Borgata trust was measured using Level 2 inputs. See Note 1;
		•		The Company uses Level 1 inputs for its long-term debt fair value disclosures. See Note 9;
		•		The Company used Level 3 inputs when assessing the fair value of its investment in Grand Victoria. See Note 6; and
		•		The Company used Level 3 inputs when assessing the fair value of its land in Jean and Sloan, Nevada at September 30, 2013. See Note 16.
	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, construction payable, or other accrued liabilities, 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, 2013, 69% of the Company’s casino receivables were due from customers residing in foreign countries. Business or economic conditions or other significant events in these countries could affect the collectibility 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 specific review of customer accounts as well as historical collection experience and current economic and business conditions. Management believes that as of December 31, 2013, 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 market. 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. Maintenance costs are expensed as incurred. Property and equipment are generally depreciated over the following estimated useful lives on a straight-line basis:
	Buildings and improvements			20 to 40 years
	Land improvements			10 to 20 years
	Furniture and fixtures			3 to 20 years
	Equipment			3 to 20 years
	The Company evaluates its property and equipment and other long-lived assets for impairment based on its classification as a) held for sale or b) 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 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. See Note 16 for information on recorded impairment charges.
	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, 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.
	Special revenue bonds. The Company holds South Jersey Transportation Authority special revenue bonds, the original proceeds from which were used to provide funding for the Atlantic City/Brigantine Connector Project. The repayment of the remaining principal and interest for the bonds is supported by eligible investment alternative tax obligation payments made to the Casino Reinvestment Development Authority from future casino licensees on the Renaissance Pointe land owned by the Company. The Company assumed no future cash flows will be received to support the carrying value of the bonds, and recorded an other-than-temporary impairment of $47 million as of December 31, 2012, included in “Other, net.” Management believed the probability for casino development on Renaissance Pointe in the foreseeable future was remote due to the continued deterioration of the Atlantic City market and initial underperformance of a resort that opened in the market.
	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 as a result of the annual impairment review for goodwill and indefinite-lived intangible assets in 2013, 2012 and 2011, except as disclosed in Note 16.
	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. The implied fair value of a reporting unit’s goodwill is compared to the carrying value of that goodwill. The implied fair value of goodwill is determined by allocating the fair value of the reporting unit to its assets and liabilities and the amount remaining, if any, is the implied fair value of goodwill. If the implied fair value of goodwill is less than its carrying value then it must be written down to its implied fair value. 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 must be recognized equal to the difference.
	Revenue recognition and promotional allowances. Casino revenue is the aggregate net difference between gaming wins and losses, with liabilities recognized for funds deposited by customers before gaming play occurs (“casino front money”) and for chips in the customers’ possession (“outstanding chip liability”). Hotel, food and beverage, entertainment and other operating revenues are recognized as services are performed. Advance deposits on rooms and advance ticket sales are recorded as accrued liabilities until services are provided to the customer.
	Gaming revenues are recognized net of certain sales incentives, including discounts and points earned in point-loyalty programs. The retail value of accommodations, food and beverage, and other services furnished to guests without charge is included in gross revenue and then deducted as promotional allowances. The estimated cost of providing promotional allowances is primarily included in casino expenses as follows:
			Year Ended December 31,
			2013		2012		2011
			(In thousands)
	Rooms		$	111,842	$	109,713	$	100,968
	Food and beverage			294,555		298,111		274,776
	Entertainment, retail and other			39,606		35,643		32,705
			$	446,003	$	443,467	$	408,449
	Gaming promoters. A significant portion of the high-end (“VIP”) gaming volume at MGM Macau is generated through the use of gaming promoters, also known as junket operators. These operators introduce high-end gaming players to MGM Macau, assist these customers with travel arrangements, and extend gaming credit to these players. VIP gaming at MGM Macau is conducted by the use of special purpose nonnegotiable gaming chips called “rolling chips.” Gaming promoters purchase these rolling chips from MGM Macau and in turn sell these chips to their players. The rolling chips allow MGM Macau to track the amount of wagering conducted by each gaming promoters’ clients in order to determine VIP gaming play. In exchange for the gaming promoters’ services, MGM Macau compensates the gaming promoters through revenue-sharing arrangements or rolling chip turnover-based commissions. The estimated portion of the gaming promoter commissions that represent amounts passed through to VIP customers is recorded as a reduction of casino revenue, and the estimated portion retained by the gaming promoter for its compensation is recorded as casino expense.
	Reimbursed expenses. The Company recognizes costs reimbursed pursuant to management services as revenue in the period it incurs the costs. Reimbursed costs related primarily to the Company’s management of CityCenter.
	Loyalty programs. The Company’s primary loyalty program is “M life” and is available to patrons at substantially all of the Company’s wholly owned and operated resorts and CityCenter. Customers earn points based on their slots play which can be redeemed for FREEPLAY at any of the Company’s participating resorts. The Company records a liability based on the points earned multiplied by the redemption value, less an estimate for points not expected to be redeemed, and records a corresponding reduction in casino revenue. Customers also earn “Express Comps” based on their gaming play which can be redeemed for complimentary goods and services, including hotel rooms, food and beverage, and entertainment. The Company records a liability for the estimated costs of providing goods and services for Express Comps based on the Express Comps earned multiplied by a cost margin, less an estimate for Express Comps not expected to be redeemed and records a corresponding expense in the casino department. MGM Macau also has a loyalty program, whereby patrons earn rewards that can be redeemed for complimentary services, including hotel rooms, food and beverage, and entertainment.
	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 $153 million, $139 million, and $121 million for 2013, 2012 and 2011, 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 16 for a detailed discussion of these amounts.
	Income (loss) per share of common stock. The table below reconciles basic and diluted income (loss) per share of common stock. Diluted net income (loss) attributable to MGM Resorts International includes adjustments for interest on convertible debt, net of tax, and the potentially dilutive effect on the Company’s equity interest in MGM China due to shares outstanding under the MGM China Share Option Plan. Diluted weighted-average common and common equivalent shares includes adjustments for potential dilution of share-based awards outstanding under the Company’s stock compensation plans and the assumed conversion of convertible debt.
			Year Ended December 31,
			2013		2012		2011
			(In thousands)
	Numerator:
	Net income (loss) attributable to MGM Resorts International - basic		$	(156,606)	$	(1,767,691)	$	3,114,637
	Interest on convertible debt, net of tax			-		-		38,344
	Potentially dilutive effect due to MGM China Share Option Plan			(104)		-		-
	Net income (loss) attributable to MGM Resorts International - diluted		$	(156,710)	$	(1,767,691)	$	3,152,981
	Denominator:
	Weighted-average common shares outstanding - basic			489,661		488,988		488,652
	Potential dilution from share-based awards			-		-		1,577
	Potential dilution from assumed conversion of convertible debt			-		-		70,666
	Weighted-average common and common equivalent shares - diluted			489,661		488,988		560,895
	Anti-dilutive share-based awards excluded from the calculation of diluted earnings per share			18,468		25,041		21,886
	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).
	Comprehensive income (loss). Comprehensive income 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, and the cumulative balance of these elements consisted of the following:
			At December 31,
			2013		2012
			(In thousands)
	Currency translation adjustments		$	24,733	$	28,726
	Other comprehensive loss from unconsolidated affiliates			(578)		(693)
	Accumulated other comprehensive income			24,155		28,033
Less: Currency translation adjustment attributable to noncontrolling interests			(11,652)		(13,730)
Accumulated other comprehensive income attributable to MGM Resorts International		$	12,503	$	14,303

MGM_China_Acquisition

MGM China Acquisition	12 Months Ended
	Dec. 31, 2013
Business Combinations [Abstract]	'
MGM China Acquisition	'
	NOTE 3 — MGM CHINA ACQUISITION
	On June 3, 2011, the Company and Ms. Ho, Pansy Catilina Chiu King (“Ms. Pansy Ho”) completed a reorganization of the capital structure of MGM China and the initial public offering of 760 million shares of MGM China on The Stock Exchange of Hong Kong Limited (the “IPO”), representing 20% of the post issuance capital stock of MGM China, at an offer price of HKD 15.34 per share. Pursuant to this reorganization, the Company, through a wholly owned subsidiary, acquired an additional 1% of the overall capital stock of MGM China for HKD 15.34 per share, or approximately $75 million, and thereby became the indirect owner of 51% of MGM China. Following the IPO, the underwriters exercised their overallotment rights with respect to 59 million shares.
	Through the acquisition of its additional 1% interest of MGM China, the Company obtained a controlling interest and was required to consolidate MGM China as of June 3, 2011. Prior to the IPO, the Company held a 50% interest in MGM Grand Paradise, which was accounted for under the equity method as discussed in Note 6. The acquisition of the controlling financial interest was accounted for as a business combination and the Company recognized 100% of the assets, liabilities, and noncontrolling interests of MGM China at fair value at the date of acquisition. The fair value of the equity interests of MGM China was determined by the IPO transaction price and equaled approximately $7.5 billion. The carrying value of the Company’s equity method investment was significantly less than its share of the fair value of MGM China at the acquisition date, resulting in a $3.5 billion gain on the acquisition. Under the acquisition method, the fair value was allocated to the assets acquired, liabilities assumed and noncontrolling interests recorded in the transaction.
	The Company recognized the identifiable intangible assets of MGM China at fair value. The gaming subconcession and land concession had historical cost bases which were being amortized by MGM Macau. The customer relationship intangible assets did not have historical cost bases at MGM Macau. The estimated fair values of the intangible assets acquired were primarily determined using Level 3 inputs. The gaming subconcession was valued using an excess earnings model based on estimated future cash flows of MGM Macau. All of the recognized intangible assets were determined to have finite lives and are being amortized over their estimated useful lives as discussed in Note 7.
	MGM China results. MGM China’s results included in the accompanying consolidated financial statements beginning as of June 3, 2011 are presented below:
		Year Ended December 31,
		2013		2012		2011
		(In thousands)
	Net revenues	$	3,316,928	$	2,807,676	$	1,534,963
	Operating income		501,021		302,092		137,440
	Net income		414,039		289,631		238,419
	Net income attributable to MGM Resorts International		211,160		147,712		121,594
	Pro forma information. The following unaudited pro forma consolidated financial information for the Company has been prepared assuming the Company’s acquisition of its controlling financial interest had occurred as of January 1, 2010 and excludes the gain recognized by the Company:
		Year Ended
		December 31,
		2011
		(In thousands,
		except per share
		data)
	Net revenues	$	8,920,343
	Operating income		577,271
	Net loss		-262,452
	Net loss attributable to MGM Resorts International		-435,099
	Loss per share of common stock attributable to MGM Resorts International:
	Basic	$	-0.89
	Diluted	$	-0.89

Accounts_Receivable_Net

Accounts Receivable, Net	12 Months Ended
	Dec. 31, 2013
Receivables [Abstract]	'
Accounts Receivable, Net	'
	NOTE 4 — ACCOUNTS RECEIVABLE, NET
	Accounts receivable, net consisted of the following:
		At December 31,
		2013		2012
		(In thousands)
	Casino	$	309,620	$	294,312
	Hotel		156,201		147,476
	Other		104,109		99,800
			569,930		541,588
	Less: Allowance for doubtful accounts		-81,713		-97,911
		$	488,217	$	443,677

Property_and_Equipment_Net

Property and Equipment, Net	12 Months Ended
	Dec. 31, 2013
Property Plant And Equipment [Abstract]	'
Property and Equipment, Net	'
	NOTE 5 — PROPERTY AND EQUIPMENT, NET
	Property and equipment, net consisted of the following:
		At December 31,
		2013		2012
		(In thousands)
	Land	$	6,477,489	$	6,499,492
	Buildings, building improvements and land improvements		9,264,455		9,272,556
	Furniture, fixtures and equipment		4,040,887		3,995,161
	Construction in progress		437,434		140,693
			20,220,265		19,907,902
	Less: Accumulated depreciation and amortization		-6,165,053		-5,713,250
		$	14,055,212	$	14,194,652

Investments_in_and_Advances_to

Investments in and Advances to Unconsolidated Affiliates	12 Months Ended
	Dec. 31, 2013
Equity Method Investments And Joint Ventures [Abstract]	'
Investments in and Advances to Unconsolidated Affiliates	'
	NOTE 6 — INVESTMENTS IN AND ADVANCES TO UNCONSOLIDATED AFFILIATES
	Investments in and advances to unconsolidated affiliates consisted of the following:
			At December 31,
			2013		2012
			(In thousands)
	CityCenter Holdings, LLC - CityCenter (50%)		$	1,172,087	$	1,220,741
	Elgin Riverboat Resort–Riverboat Casino – Grand Victoria (50%)			169,579		206,296
	Silver Legacy (50%) and Other			33,170		17,510
			$	1,374,836	$	1,444,547
	The Company recorded its share of the results of operations of unconsolidated affiliates as follows:
			Year Ended December 31,
			2013		2012		2011
			(In thousands)
	Income (loss) from unconsolidated affiliates		$	43,060	$	-46,382	$	91,094
	Preopening and start-up expenses			-507		-656		-
	Non-operating items from unconsolidated affiliates			-157,338		-90,020		-119,013
			$	(114,785)	$	(137,058)	$	(27,919)
	CityCenter
	October 2013 debt restructuring transactions. In October 2013, CityCenter entered into a $1.775 billion senior secured credit facility. The senior secured credit facility consists of a $75 million revolving facility maturing in October 2018, and a $1.7 billion term loan B facility maturing in October 2020. The term loan B facility was issued at 99% of the principal amount and will bear interest at LIBOR plus 4.00% with a LIBOR floor of 1.00%. Concurrent with the closing of the new senior secured credit facility, CityCenter issued a notice of full redemption with respect to its existing 7.625% senior secured first lien notes and 10.75%/11.50% senior secured second lien PIK toggle notes and discharged each of the indentures for its first and second lien notes at a premium in accordance with the terms of such indentures. As a result of the transaction, the Company recorded a fourth quarter charge of $70 million for its share of CityCenter’s non-operating loss on retirement of long-term debt, primarily consisting of premiums associated with the redemption of the existing first and second lien notes as well as the write-off of previously unamortized debt issuance costs. CityCenter also recorded a loss on retirement of long term-debt of $24 million in the first quarter of 2011 related to its January 2011 credit facility amendments and the concurrent issuance of first and second lien notes.
	In addition, in connection with the October 2013 debt restructuring, sponsor notes with a carrying value of approximately $738 million were converted to members’ equity. Subsequent to these transactions, CityCenter’s senior credit facility is its only remaining long-term debt. The senior secured credit facility is secured by substantially all the assets of CityCenter, and contains certain financial covenants including minimum interest coverage ratios and maximum leverage ratio requirements (as defined in the agreements).
	Completion guarantee. In October 2013, the Company entered into an amended completion and cost overrun guarantee in connection with CityCenter’s restated senior credit facility agreement as discussed in Note 11.
	Residential inventory impairment. CityCenter is required to carry its residential inventory at the lower of its carrying value or fair value less costs to sell. Fair value of the residential inventory is determined using a discounted cash flow analysis based on management’s current expectations of future cash flows. The key inputs in the discounted cash flow analysis include estimated sales prices of units currently under contract and new unit sales, the absorption rate over the sell-out period, and the discount rate. CityCenter recorded an impairment charge of $36 million in 2012. The Company recognized 50% of such impairment charges, resulting in a charge of approximately $18 million. CityCenter recorded a residential inventory impairment charge of $53 million in 2011. The Company recognized 50% of such impairment charge, resulting in a charge of approximately $26 million.
	Harmon. CityCenter accrued $32 million in 2012 related to the estimated demolition cost of the Harmon. The Company recognized 50% of such charge, resulting in a charge of approximately $16 million. See Note 11 for additional information regarding Harmon.
	Grand Victoria
	At June 30, 2013, the Company reviewed the carrying value of its Grand Victoria investment for impairment due to a higher than anticipated decline in operating results and loss of market share as a result of the opening of a new river boat casino in the Illinois market, as well as a decrease in forecasted cash flows compared to the prior forecast. The Company used a blended discounted cash flow analysis and guideline public company method to determine the estimated fair value from a market participant’s viewpoint. Key assumptions included in the discounted cash flow analysis were estimates of future cash flows including outflows for capital expenditures, a long-term growth rate of 2% and a discount rate of 11%. Key assumptions in the guideline public company method included business enterprise value multiples selected based on the range of multiples in the Company’s peer group. As a result of the analysis, the Company determined that it was necessary to record an other-than-temporary impairment charge of $37 million at June 30, 2013, based on an estimated fair value of $170 million for the Company’s 50% interest. The Company intends to, and believes it will be able to, retain the investment in Grand Victoria; however, due to the extent of the shortfall and the Company’s assessment of the uncertainty of fully recovering its investment, the Company has determined that the impairment was other-than-temporary.
	At June 30, 2012, the Company reviewed the carrying value of its Grand Victoria investment for impairment due to a decrease in operating results at the property and the loss of market share as a result of the opening of a new riverboat casino in the Illinois market, as well as a decrease in forecasted cash flows. The Company used a discounted cash flow analysis to determine the estimated fair value. Key assumptions included in the analysis were estimates of future cash flows including outflows for capital expenditures, a long-term growth rate of 2% and a discount rate of 10.5%. As a result of the discounted cash flow analysis, the Company determined that it was necessary to record an other-than-temporary impairment charge of $85 million based on an estimated fair value of $205 million for the Company’s 50% interest.
	Silver Legacy
	Silver Legacy had approximately $143 million of outstanding senior secured notes that were due in March 2012. Silver Legacy did not repay its notes at maturity and filed for Chapter 11 bankruptcy protection in May 2012. These notes were non-recourse to the Company. In November 2012, Silver Legacy completed a consensual plan of reorganization pursuant to which the holders of the senior secured notes received a combination of cash and new second lien notes. Concurrently, Silver Legacy entered into an agreement for a new $70 million senior secured credit facility, which provided for a portion of the exit financing associated with the plan of reorganization. As part of the reorganization, the partners invested $7.5 million each in the form of subordinated sponsor notes. The Company resumed the equity method of accounting for its investment in Silver Legacy subsequent to completion of the reorganization. In December 2013, Silver Legacy entered into a new senior credit facility and redeemed its outstanding second lien notes. Silver Legacy recognized a gain of $24 million in connection with these transactions. The Company recognized $12 million, its share of the gain, within non-operating items from unconsolidated affiliates.
	MGM Grand Paradise Limited
	As discussed in Note 3, the Company obtained a controlling financial interest in MGM China as of June 3, 2011. MGM China owns MGM Grand Paradise, the Macau company that owns and operates MGM Macau resort and casino and the related gaming subconcession and land concession. Because the Company obtained a controlling financial interest, it was required to consolidate MGM China beginning on June 3, 2011. Prior thereto, the Company's investment in MGM Grand Paradise was accounted for under the equity method. Prior to the transaction, the Company received distributions from MGM Grand Paradise of approximately $31 million in 2011.
	Unconsolidated Affiliate Financial Information
	Summarized balance sheet information of the unconsolidated affiliates is as follows:
			At December 31,
			2013		2012
			(In thousands)
	Current assets		$	528,297	$	619,099
	Property and other long-term assets, net			8,519,605		8,875,020
	Current liabilities			519,779		501,518
	Long-term debt and other liabilities			1,779,797		2,668,759
	Equity			6,748,326		6,323,842
	Summarized results of operations of the unconsolidated affiliates are as follows:
			Year Ended December 31,
			2013		2012		2011
			(In thousands)
	Net revenues		$	1,584,609	$	1,527,355	$	2,558,631
	Operating expenses			(1,572,298)		(1,731,263)		(2,472,668)
	Operating income (loss)			12,311		-203,908		85,963
	Interest expense			-247,405		-277,119		-293,578
	Other non-operating expense			-151,401		-5,329		-25,876
	Net loss		$	-386,495	$	-486,356	$	-233,491
	Basis Differences
	The Company’s investments in unconsolidated affiliates do not equal the 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 venture-level equity and investment balances are as follows:
			At December 31,
			2013		2012
			(In thousands)
	Venture-level equity		$	3,369,148	$	3,156,631
	Adjustment to CityCenter equity upon contribution of net assets by MGM Resorts International (A)			-583,946		-589,338
	CityCenter capitalized interest (B)			261,526		271,602
	Completion guarantee (C)			411,944		316,281
	Advances to CityCenter, net of discount (D)			-53,296		268,927
	Other-than-temporary impairments of CityCenter investment (E)			(1,915,153)		(1,972,633)
	Fair value adjustments upon acquisition of Grand Victoria investment (F)			267,190		267,190
	Other adjustments (G)			-382,577		-274,113
		$	1,374,836	$	1,444,547
	(A)	Primarily relates to land and fixed assets.
	(B)	Relates to interest capitalized on the Company’s investment balance during development and construction stages.
	(C)	Created by contributions to CityCenter under the completion guarantee recognized as equity contributions by the joint venture split between the partners.
	(D)	During 2013, the Company converted its CityCenter sponsor notes to equity, resolving the basis difference related to such notes which were previously recognized as long-term debt by CityCenter. The remaining basis difference relates to interest on the notes capitalized by CityCenter during development.
	(E)	The impairment of the Company’s CityCenter investment includes $426 million of impairments allocated to land.
	(F)	Relates to indefinite-lived gaming license rights for Grand Victoria.
	(G)	Other adjustments include the deferred gain on assets contributed to CityCenter upon formation of the joint venture and other-than-temporary impairments of the Company’s investment in Grand Victoria and Silver Legacy. In 2012, other adjustments included a receivable from CityCenter related to condominium proceeds which was expected to be reimbursed to the Company.

Goodwill_and_Other_Intangible_

Goodwill and Other Intangible Assets	12 Months Ended
	Dec. 31, 2013
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:
		At December 31,
		2013		2012
		(In thousands)
	Goodwill:
	Mirage Resorts acquisition (2000)	$	30,451	$	30,451
	Mandalay Resort Group acquisition (2005)		40,524		40,524
	MGM China acquisition (2011)		2,826,467		2,831,872
		$	2,897,442	$	2,902,847
	Indefinite-lived intangible assets:
	Detroit development rights	$	98,098	$	98,098
	Trademarks, license rights and other		232,123		234,073
	Total indefinite-lived intangible assets		330,221		332,171
	Finite-lived intangible assets:
	MGM China gaming subconcession		4,513,631		4,515,991
	Less: Accumulated amortization		-526,152		-358,873
			3,987,479		4,157,118
	MGM Macau land concession		84,727		84,772
	Less: Accumulated amortization		-11,003		-6,737
			73,724		78,035
	MGM China customer lists		128,961		129,028
	Less: Accumulated amortization		-101,240		-75,550
			27,721		53,478
	MGM China gaming promoter relationships		180,545		180,640
	Less: Accumulated amortization		-116,335		-71,223
			64,210		109,417
	Maryland license and other intangible assets		51,827		30,226
	Less: Accumulated amortization		-23,321		-22,612
			28,506		7,614
	Total finite-lived intangible assets, net		4,181,640		4,405,662
	Total other intangible assets, net	$	4,511,861	$	4,737,833
	Goodwill related to the Mirage Resorts acquisition relates to Bellagio and The Mirage. Goodwill related to the Mandalay Resort Group acquisition relates to Gold Strike Tunica.
	The Company’s indefinite-lived intangible assets consist primarily of development rights in Detroit, trademarks and license rights, of which $213 million consists of trademarks and trade names related to the Mandalay Resort Group acquisition.
	Gaming subconcession. Pursuant to the agreement dated June 19, 2004 between MGM Grand Paradise and Sociedade de Jogos de Macau, S.A. (“SJM”), 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 land concession agreement with the government extends significantly beyond the gaming subconcession. In addition, management believes that the fair value of MGM China reflected in the IPO pricing suggests that market participants have assumed the gaming subconcession will be extended beyond its initial term. As such, the Company was amortizing the gaming subconcession intangible asset on a straight-line basis over the initial term of the land concession through April 6, 2031. In January 2013, the Company’s Cotai land concession was gazetted by the Macau government at which time the Company determined that the estimated remaining useful life of its gaming subconcession would be extended through the initial 25-year term of the Cotai land concession, ending in January 2038.
	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. 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 customer lists, which is amortized on an accelerated basis over its estimated useful life of five years.
	Gaming promoter relationships. The Company recognized an intangible asset related to its relationships with gaming promoters, which is amortized on a straight-line basis over its estimated useful life of four years.
	Maryland license. In December 2013, the Company was awarded a license to operate a casino in Maryland. The consideration paid to the State of Maryland for the license fee will be considered a finite-lived intangible asset that will be amortized beginning upon the opening of the resort.
	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 $243 million, $321 million and $181 million for 2013, 2012, and 2011, respectively. Estimated future amortization is as follows:
		(In thousands)
	Years ending December 31,
	2014	$	231,545
	2015		199,280
	2016		174,697
	2017		172,397
	2018		172,397
	Thereafter		3,231,324
		$	4,181,640

Other_Accrued_Liabilities

Other Accrued Liabilities	12 Months Ended
	Dec. 31, 2013
Text Block [Abstract]	'
Other Accrued Liabilities	'
	NOTE 8 — OTHER ACCRUED LIABILITIES
	Other accrued liabilities consisted of the following:
		At December 31,
		2013		2012
		(In thousands)
	Payroll and related	$	394,709	$	368,702
	Advance deposits and ticket sales		104,504		102,428
	Casino outstanding chip liability		409,917		260,957
	Casino front money deposits		125,180		131,187
	MGM China gaming promoter commissions		118,122		114,631
	Other gaming related accruals		137,181		141,195
	Taxes, other than income taxes		236,991		223,308
	Completion guarantee liability		97,223		27,867
	Other		146,974		147,690
		$	1,770,801	$	1,517,965

LongTerm_Debt

Long-Term Debt	12 Months Ended
	Dec. 31, 2013
Debt Disclosure [Abstract]	'
Long-Term Debt	'
	NOTE 9 — LONG-TERM DEBT
	Long-term debt consisted of the following:
			At December 31,
			2013		2012
			(In thousands)
	Senior credit facility:
	$2,772 million ($2,800 million at December 31, 2012) term loans, net		$	2,765,041	$	2,791,284
	MGM Grand Paradise credit facility			553,242		553,531
	$462.2 million 6.75% senior notes, due 2013			-		462,226
	$150 million 7.625% senior subordinated debentures, due 2013, net			-		150,539
	$508.9 million 5.875% senior notes, due 2014, net			508,848		508,540
	$875 million 6.625% senior notes, due 2015, net			876,022		876,634
	$1,450 million 4.25% convertible senior notes, due 2015, net			1,456,153		1,460,780
	$242.9 million 6.875% senior notes, due 2016			242,900		242,900
	$732.7 million 7.5% senior notes, due 2016			732,749		732,749
	$500 million 10% senior notes, due 2016, net			496,987		496,110
	$743 million 7.625% senior notes, due 2017			743,000		743,000
	$475 million 11.375% senior notes, due 2018, net			467,451		466,117
	$850 million 8.625% senior notes, due 2019			850,000		850,000
	$500 million 5.25% senior notes, due 2020			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
	$0.6 million 7% debentures, due 2036, net			572		572
	$4.3 million 6.7% debentures, due 2096			4,265		4,265
	Other notes			-		36
			$	13,447,230	$	13,589,283
	Debt due within one year of the December 31, 2013 balance sheet date is classified as long-term because the Company has both the intent and ability to refinance such amounts on a long-term basis.
	Interest expense, net consisted of the following:
			Year Ended December 31,
			2013		2012		2011
			(In thousands)
	Total interest incurred		$	862,417	$	1,117,327	$	1,086,865
	Interest capitalized			-5,070		-969		-33
			$	857,347	$	1,116,358	$	1,086,832
	Senior credit facility. At December 31, 2013, the Company’s senior credit facility consisted of a $1.2 billion revolving credit facility, a $1.04 billion term loan A facility and a $1.73 billion term loan B facility. The revolving and term loan A facilities bear interest at LIBOR plus an applicable rate determined by the Company’s credit rating (2.75% as of December 31, 2013). The term loan B facility was re-priced in May 2013 and bears interest at LIBOR plus 2.50%, with a LIBOR floor of 1.00% (3.50% as of December 31, 2013). As a result of the May 2013 re-pricing, the Company recorded a loss of $4 million on retirement of debt in “Other, net.” The revolving and term loan A facilities mature in December 2017 and the term loan B facility matures in December 2019. The term loan A and term loan B facilities are subject to scheduled amortization payments on the last day of each calendar quarter from and after March 31, 2013 in an amount equal to 0.25% of the original principal balance. The Company permanently repaid $28 million in 2013, in accordance with the scheduled amortization. The Company had $1.2 billion of available borrowing capacity under its senior credit facility at December 31, 2013. At December 31, 2013, the interest rate on the term loan A was 2.92% and the interest rate on the term loan B was 3.50%. The Company’s senior credit facility was amended and restated in February 2012 and again in December 2012. In connection with these transactions the Company recorded losses on retirements of debt of $107 million in “Other, net” during 2012 related to previously recorded discounts and certain debt issuance costs.
	The land and substantially all of the assets of MGM Grand Las Vegas, Bellagio and The Mirage secure up to $3.35 billion of obligations outstanding under the senior credit facility. In addition, the land and substantially all of the assets of New York-New York and Gold Strike Tunica secure the entire amount of the senior credit facility and the land and substantially all of the assets of MGM Grand Detroit secure its $450 million of obligations as a co-borrower under the senior credit facility. In addition, the senior credit facility is secured by a pledge of the equity or limited liability company interests of the subsidiaries that own the pledged properties.
	The senior credit facility contains customary representations and warranties and customary affirmative and negative covenants. In addition, the senior credit facility requires the Company and its restricted subsidiaries to maintain a minimum trailing four-quarter EBITDA and limits the ability of the Company and its restricted subsidiaries to make capital expenditures and investments. As of December 31, 2013, the Company and its restricted subsidiaries are required to maintain a minimum EBITDA (as defined) of $1.05 billion. The minimum EBITDA increases to $1.10 billion for March 31, 2014 and June 30, 2014 and to $1.20 billion for September 30, 2014 and December 31, 2014, with periodic increases thereafter. EBITDA for the trailing twelve months ended December 31, 2013 calculated in accordance with the terms of the senior credit facility was $1.31 billion. The senior credit facility limits the Company and its restricted subsidiaries to capital expenditures of $500 million per fiscal year, with unused amounts in any fiscal year rolling over to the next fiscal year, but not any fiscal year thereafter. In addition, the senior credit facility limits the Company’s ability to make investments subject to certain thresholds and other important exceptions. The Company and its restricted subsidiaries were within the limit of capital expenditures for the calendar year 2013.
	The senior credit facility provides for customary events of default, including, without limitation, (i) payment defaults, (ii) covenant defaults, (iii) cross-defaults to certain other indebtedness in excess of specified amounts, (iv) certain events of bankruptcy and insolvency, (v) judgment defaults in excess of specified amounts, (vi) the failure of any loan document by a significant party to be in full force and effect and such circumstance, in the reasonable judgment of the required lenders, is materially adverse to the lenders, or (vii) the security documents cease to create a valid and perfected first priority lien on any material portion of the collateral. In addition, the senior credit facility provides that a cessation of business due to revocation, suspension or loss of any gaming license affecting a specified amount of its revenues or assets, will constitute an event of default.
	MGM China credit facility. At December 31, 2013, the MGM China credit facility consisted of approximately $550 million of term loans and an approximately $1.45 billion revolving credit facility due October 2017. The credit facility is subject to scheduled amortization payments beginning in 2016. The outstanding balance at December 31, 2013 was comprised solely of term loans. The interest rate on the facility fluctuates annually based on HIBOR plus a margin, which ranges between 1.75% and 2.50%, based on MGM China’s leverage ratio. The margin was 1.75% at December 31, 2013. MGM China is a joint and several co-borrower with MGM Grand Paradise. MGM Grand Paradise’s interest in the Cotai land use right agreement will become collateral under the MGM China credit facility upon finalization of the appropriate government approvals. The material subsidiaries of MGM China continue to guarantee the facilities, and MGM China, MGM Grand Paradise and their guarantor subsidiaries have granted a security interest in substantially all of their assets to secure the amended facilities. The credit facility will be used for general corporate purposes and for the development of the Cotai project.
	The MGM China credit facility agreement contains customary representations and warranties, events of default, affirmative covenants and negative covenants, which impose restrictions on, among other things, the ability of MGM China and its subsidiaries to make investments, pay dividends and sell assets, and to incur additional debt and additional liens. MGM China is also required to maintain compliance with a maximum consolidated total leverage ratio of 4.50 to 1.00 prior to the first anniversary of the MGM Cotai opening date and 4.00 to 1.00 thereafter, in addition to a minimum interest coverage ratio of 2.50 to 1.00. MGM China was in compliance with its credit facility covenants at December 31, 2013.
	Senior Notes. During 2013, the Company repaid its $462 million 6.75% senior notes and $150 million 7.625% senior subordinated debentures at maturity. In 2012, the Company repaid the $535 million of outstanding principal amount of its 6.75% senior notes at maturity.
	In 2013, the Company issued $500 million of 5.25% senior notes, due 2020 for net proceeds of $494 million. The Company issued the following senior notes in 2012:
		•		$850 million of 8.625% senior notes due 2019 for net proceeds of $836 million;
		•		$1.0 billion of 7.75% senior notes due 2022 for net proceeds of $986 million;
		•		$1.0 billion of 6.75% senior notes due 2020 for net proceeds of $986 million; and
		•		$1.25 billion of 6.625% senior notes due 2021 for net proceeds of $1.23 billion.
	The senior notes are unsecured and otherwise rank equally in right of payment with the Company’s existing and future indebtedness.
	Tender offers. In December 2012, the Company completed the early settlement of its tender offers for its 13% senior secured notes due 2013, 10.375% senior secured notes due 2014, 11.125% senior secured notes due 2017 and 9% senior secured notes due 2020 and called for redemption of all of the secured notes that were not purchased on the early settlement date and satisfied and discharged the indentures governing the secured notes. As a result of the redemption and the satisfaction and discharge of the secured notes indentures, the Company was released from its obligations under the indentures and all of the collateral securing those notes was released. The Company recorded a loss on retirement of the secured notes of $457 million in “Other, net” which included $379 million of premiums paid to redeem or discharge the debt, the write-off of $75 million of previously recorded discounts and debt issuance costs, and $3 million of other costs in 2012.
	Senior convertible notes. In April 2010, the Company issued $1.15 billion of 4.25% convertible senior notes due 2015 for net proceeds to the Company of $1.12 billion. The notes are general unsecured obligations of the Company and rank equally in right of payment with the Company’s other existing senior unsecured indebtedness. The Company used the net proceeds from the senior convertible note issuance to temporarily repay amounts outstanding under its senior credit facility.
	The notes are convertible at an initial conversion rate of approximately 53.83 shares of the Company’s common stock per $1,000 principal amount of the notes, representing an initial conversion price of approximately $18.58 per share of the Company’s common stock. The initial conversion rate was determined based on the closing trading price of the Company’s common stock on the date of the transaction, plus a 27.5% premium. The terms of the notes do not provide for any beneficial conversion features.
	In connection with the offering, the Company entered into capped call transactions to reduce the potential dilution of the Company’s stock upon conversion of the notes. The capped call transactions have a cap price equal to approximately $21.86 per share. The Company paid approximately $81 million for the capped call transactions, which is reflected as a decrease in “Capital in excess of par value,” net of $29 million of associated tax benefits.
	Financial instruments that are indexed to an entity’s own stock and are classified as stockholders’ equity in an entity’s statement of financial position are not considered within the scope of derivative instruments. The Company performed an evaluation of the embedded conversion option and capped call transactions, which included an analysis of contingent exercise provisions and settlement requirements, and determined that the embedded conversion option and capped call transactions are considered indexed to the Company’s stock and should be classified as equity, and therefore are not accounted for as derivative instruments. Accordingly, the entire face amount of the notes was recorded as debt until converted or retired at maturity, and the capped call transactions were recorded within equity as described above.
	In June 2011, the Company sold an additional $300 million in aggregate principal amount of the Company’s 4.25% convertible senior notes due 2015 (the “Notes”) on terms that were consistent with those governing the Company’s existing convertible senior notes due 2015 for a purchase price of 103.805% of the principal amount to an indirect wholly owned subsidiary of Ms. Pansy Ho in a transaction exempt from registration under the Securities Act of 1933, as amended. The Notes are convertible at an initial conversion rate, subject to adjustment under certain circumstances, of approximately 53.83 shares of the Company’s common stock per $1,000 principal amount of the Notes. The Company received approximately $311 million in proceeds related to this transaction. The initial agreement to sell the Notes occurred in April 2011, and the Notes were not sold until June 2011. The agreement to issue the Notes at a later date based on the fixed terms described above constituted a derivative instrument. At issuance, the fair value of the derivative instrument was equal to the difference between the fair value of the Notes and the Notes’ issuance price. The Notes were recorded at fair value determined by the trading price (105.872%) of the Company’s existing convertible notes on the date of issuance of the Notes, with the difference recorded as a premium to be recognized over the term of the Notes. The Company recorded a loss of $6 million related to the change in fair value of the derivative in “Other, net” non-operating expense during 2011.
	Maturities of long-term debt. Maturities of the Company’s long-term debt as of December 31, 2013 are as follows:
			(In thousands)
	Years ending December 31,
	2014		$	536,900
	2015			2,353,000
	2016			1,641,959
	2017			2,183,432
	2018			492,500
	Thereafter			6,249,817
			13,457,608
Debt premiums and discounts, net			-10,378
		$	13,447,230
Fair value of long-term debt. The estimated fair value of the Company’s long-term debt at December 31, 2013 was approximately $14.9 billion. The estimated fair value of the Company’s long-term debt at December 31, 2012 was approximately $14.3 billion. Fair value was estimated using quoted market prices for the Company’s senior notes, senior subordinated notes and senior credit facility. Carrying value of the MGM Grand Paradise credit facility approximates fair value.

Income_Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2013
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 loss 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.
	Consolidated income (loss) before taxes for domestic and foreign operations consisted of the following:
		Year Ended December 31,
		2013			2012			2011
		(In thousands)
	Domestic operations	$	(419,316)		$	-2,048,868		$	-902,613
	Foreign operations		507,081			314,655			3,734,244
		$	87,765		$	(1,734,213)		$	2,831,631
	The income tax benefit (provision) attributable to income (loss) before income taxes is as follows:
		Year Ended December 31,
		2013			2012			2011
		(In thousands)
	Federal
	Current	$	3,532		$	1,636		$	-1,237
	Deferred (excluding separate components)		455,610			602,668			57,573
	Deferred—operating loss carryforward		-305,760			89,954			260,167
	Deferred—valuation allowance		-134,027			-608,015			-
	Other noncurrent		14,523			-1,587			-2,812
	Benefit for federal income taxes		33,878			84,656			313,691
	State
	Current		-1,812			-3,466			-4,482
	Deferred (excluding separate components)		1,753			24,104			9,472
	Deferred—operating loss carryforward		393			9,221			-3,357
	Deferred—valuation allowance		-4,374			-2,579			-7,787
	Deferred—enacted changes in tax laws or rates		-			-			-12,743
	Other noncurrent		880			-5,493			-1,320
	Benefit (provision) for state income taxes		-3,160			21,787			-20,217
	Foreign
	Current		-2,214			-3,217			-3,800
	Deferred (excluding separate components)		-70,440			12,471			113,639
	Deferred—operating loss carryforward		1,312			-782			-
	Deferred—valuation allowance		9,361			2,386			-
	Benefit (provision) for foreign income taxes		-61,981			10,858			109,839
		$	(31,263)		$	117,301		$	403,313
	A reconciliation of the federal income tax statutory rate and the Company’s effective tax rate is as follows:
		Year Ended December 31,
		2013			2012			2011
	Federal income tax statutory rate		35.0	%		35.0	%		35.0	%
	Foreign tax credit, net of valuation allowance		-523.3			19.8			-
	Repatriation of foreign earnings		523.3			-19.2			-
	Federal valuation allowance		152.7			-35.1			-
	State income tax, net of federal benefit and valuation allowance		2.3			0.8			0.5
	Settlements with taxing authorities		-16.6			-			-
	Macau deferred tax liability re-measurement		68.1			-			-
	Foreign jurisdiction income/losses taxed at other than 35%		-199.7			7.0			-2.1
	Foreign jurisdiction tax rate change		-			-			-4.6
	MGM China acquisition gain		-			-			-43.2
	Tax credits		-9.3			0.5			-0.2
	Permanent and other items		3.1			-2			0.4
			35.6	%		6.8	%		(14.2)	%
	The major tax-effected components of the Company’s net deferred tax liability are as follows:
		At December 31,
		2013			2012
		(In thousands)
	Deferred tax assets—federal and state:
	Senior secured notes retirement	$	647		$	233,312
	Bad debt reserve		37,327			38,048
	Deferred compensation		3,680			3,080
	Net operating loss carryforward		304,077			601,226
	Accruals, reserves and other		148,438			88,097
	Investments in unconsolidated affiliates		282,258			338,945
	Stock-based compensation		31,185			36,728
Tax credits		1,796,599			820,299
		2,604,211			2,159,735
Less: Valuation allowance		-1,665,846			-1,032,423
		938,365			1,127,312
Deferred tax assets—foreign:
Bad debt reserve		333			1,477
Net operating loss carryforward		55,834			50,075
Accruals, reserves and other		154			1,439
Property and equipment		11,204			10,218
		67,525			63,209
Less: Valuation allowance		-56,071			-60,975
		11,454			2,234
Total deferred tax assets	$	949,819		$	1,129,546
Deferred tax liabilities—federal and state:
Property and equipment		-2,488,287			-2,505,602
Long-term debt		-360,666			-550,811
Cost method investments		-23,944			-8,323
Intangibles		-105,231			-103,094
		-2,978,128			-3,167,830
Deferred tax liabilities—foreign:
Intangibles		-321,116			-256,174
		-321,116			-256,174
Total deferred tax liability	$	-3,299,244		$	-3,424,004
Net deferred tax liability	$	(2,349,425)		$	(2,294,458)
Income generated from gaming operations of MGM Grand Paradise, which is wholly owned by MGM China, is exempted from Macau’s 12% complementary tax for the five-year period ending December 31, 2016, pursuant to approval from the Macau government, granted on September 22, 2011. Absent this exemption, “Net income attributable to MGM Resorts International” would have been reduced by $43 million and $34 million for 2013 and 2012, respectively, and net income per share (diluted) would have been reduced by $0.09 and $0.07 for 2013 and 2012, respectively. The approval granted in 2011 represented the second five-year exemption period granted to MGM Grand Paradise. The Company measures the net deferred tax liability of MGM Grand Paradise under the assumption that it will receive an additional five-year exemption beyond 2016. Such assumption is based upon the granting of a third five-year exemption to a competitor of MGM Grand Paradise. The Company believes MGM Grand Paradise should also be entitled to a third five-year exemption in order to ensure non-discriminatory treatment among gaming concessionaires and subconcessionaires, a requirement under Macanese law. The net deferred tax liability of MGM Grand Paradise was re-measured during the first quarter of 2013 due to the extension of the amortization period of the Macau gaming subconcession in connection with the effectiveness of the Cotai land concession. This resulted in an increase in the net deferred tax liability and a corresponding increase in provision for income taxes of $65 million in 2013.
Non-gaming operations remain subject to the Macau complementary tax. MGM Grand Paradise had at December 31, 2013 a complementary tax net operating loss carryforward of $459 million resulting from non-gaming operations that will expire if not utilized against non-gaming income in years 2014 through 2016. The Macanese net operating loss carryforwards are fully offset by a valuation allowance.
MGM Grand Paradise’s exemption from the Macau 12% complementary tax on gaming profits does not apply to dividend distributions of such profits to MGM China. However, in June 2012, MGM Grand Paradise reached an agreement with the Macau government to settle the 12% complementary tax that would otherwise be due by its shareholders (including 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 covered the years 2007 through 2011, including a distribution that was made during the first quarter of 2012 (the “covered period”). Cumulative annual payments of $4 million for the covered period were paid, and a corresponding reduction to benefit for income taxes was recorded in 2012. Shareholders of MGM Grand Paradise are not subject to the complementary tax on distributions they received during the covered period as a result of the annual fee arrangement. Consequently, the Company reversed complementary taxes previously accrued on such distributions resulting in a $19 million increase to benefit for income taxes in 2012. MGM Grand Paradise submitted a request for a five-year extension of the annual fee arrangement covering all years through 2016 (“extended annual fee arrangement”), which was approved by the Macau government in December 2012. Annual payments of $2 million are required under the extended annual fee arrangement. The $2 million annual payment for 2013 and 2012 was accrued and a corresponding provision for income taxes was recorded in each year.
The Company repatriated $312 and $263 million of foreign earnings and profits in 2013 and 2012, respectively. At December 31, 2013, there are approximately $282 million of unrepatriated foreign earnings and profits, all of which the Company anticipates will be repatriated in 2014 without the incurrence of additional U.S. income tax expense. Accordingly, no deferred tax liability has been recorded for those earnings. Creditable foreign taxes associated with the repatriated earnings and profits increased the Company’s foreign tax credit carryover by $968 million and $785 million in 2013 and 2012, respectively. Such foreign taxes consist of the Macau Special Gaming Tax, which the Company believes qualifies as a tax paid in lieu of an income tax that is creditable against U.S. income taxes. The foreign tax credit carryovers expire as follows: $2 million in 2015; $785 million in 2022; and $968 million in 2023. The foreign tax credit carryovers are subject to valuation allowance as described further below.
The Company has a U.S. federal income tax net operating loss carryforward of $808 million that will begin to expire in 2031, an alternative minimum tax credit carryforward of $24 million that will not expire, a general business tax credit carryforward of $17 million that will begin to expire in 2029 and a charitable contribution carryforward of $12 million, of which $3 million will expire in 2014 and the remainder thereafter.
At December 31, 2013, the Company is not close to the 50% ownership change threshold set forth in Internal Revenue Code section 382. Should the 50% ownership change threshold be exceeded in a future period, the Company’s U.S. federal income tax net operating losses and tax credits incurred prior to the ownership change would generally be subject to a post-change annual usage limitation equal to the value of the Company at the time of the ownership change multiplied by the long-term tax exempt rate at such time as established by the Internal Revenue Service.
For state income tax purposes, the Company has Illinois and New Jersey net operating loss carryforwards of $80 million and $231 million, respectively, which equates to deferred tax assets after federal tax effect and before valuation allowance, of $4 million and $14 million, respectively. The Illinois net operating loss carryforwards will expire if not utilized by 2021 through 2025. The New Jersey net operating loss carryforwards will expire if not utilized by 2014 through 2033.
During 2011, the state of Michigan enacted changes in its corporate tax law that became effective on January 1, 2012. The state replaced the Michigan Business Tax (“MBT”) regime with a new Corporate Income Tax (“CIT”) regime that taxes unitary combined income apportioned to the state at a 6% rate. Net operating loss carryforwards generated under the MBT, of which the Company had $198 million at December 31, 2011, may not be carried over and utilized under the CIT. Losses generated under the CIT will have a 10 year carryforward period. Furthermore, the book-tax difference deduction, which would have been available under the MBT in 2015 through 2029, is not available under the CIT. During 2011, the Company recorded an increase to the net Michigan deferred tax liability in the amount of $8 million, after federal effect, to reflect the impact of this tax law change, with a corresponding reduction to income tax benefit.
Given the negative impact of the U.S. economy on the results of operations in the past several years, the Company no longer relies on future domestic operating income in assessing the realizability of its domestic deferred tax assets and now relies only on the future reversal of existing domestic taxable temporary differences. As of December 31, 2013, the scheduled future reversal of existing U.S. federal deductible temporary differences exceeds the scheduled future reversal of existing U.S. federal taxable temporary differences and a valuation allowance is provided for this excess. At December 31, 2013, such valuation allowance was $1.65 billion. In addition, there is a $16 million valuation allowance, after federal effect, provided on certain state deferred tax assets and a valuation allowance of $56 million on certain Macau deferred tax assets because the Company believes these assets do not meet the “more likely than not” criteria for recognition.
The Company assesses its tax positions using a two-step process. A tax position is recognized if it meets a “more likely than not” threshold, and is measured at the largest amount of benefit that is greater than 50 percent likely of being realized. Uncertain tax positions must be reviewed at each balance sheet date. Liabilities recorded as a result of this analysis must generally be recorded separately from any current or deferred income tax accounts, and at December 31, 2013, the Company has classified $16 million as current in “Other accrued liabilities” and $87 million as long-term in “Other long-term obligations,” based on the time until expected payment.
A reconciliation of the beginning and ending amounts of gross unrecognized tax benefits is as follows:
	Year Ended December 31,
	2013			2012			2011
	(In thousands)
Gross unrecognized tax benefits at January 1	$	153,184		$	145,799		$	134,417
Gross increases – Prior period tax positions		6,082			6,903			9,360
Gross decreases – Prior period tax positions		-35,508			-12,639			-13,772
Gross increases – Current period tax positions		4,064			13,121			15,794
Settlements with taxing authorities		-21,576			-			-
Gross unrecognized tax benefits at December 31	$	106,246		$	153,184		$	145,799
The total amount of unrecognized tax benefits that, if recognized, would typically affect the effective tax rate was $32 million and $39 million at December 31, 2013 and 2012, respectively. Of these amounts, unrecognized tax benefits related to permanent differences of $6 million at both December 31, 2013 and 2012, that would otherwise impact the effective tax rate, would not impact the effective tax rate if recognized in years when the Company has a valuation allowance provided against its U.S federal deferred tax assets.
The Company recognizes accrued interest and penalties related to unrecognized tax benefits in income tax expense. The Company had $17 million and $29 million in interest related to unrecognized tax benefits accrued at December 31, 2013 and 2012, respectively. No amounts were accrued for penalties as of either date. Income tax expense for the years ended December 31, 2013, 2012 and 2011 includes interest expense or benefit related to unrecognized tax benefits as follows: $12 million benefit in 2013, $3 million expense in 2012, and none in 2011.
The Company files income tax returns in the U.S. federal jurisdiction, various state and local jurisdictions, and foreign jurisdictions, although the taxes paid in foreign jurisdictions are not material. As of December 31, 2013, the Company is no longer subject to examination of its U.S. consolidated federal income tax returns filed for years ended prior to 2005. The IRS completed its examination of the consolidated federal income tax returns for the 2003 and 2004 tax years during 2010 and the Company paid $12 million in tax and $4 million in associated interest with respect to adjustments to which the Company agreed, and protested with IRS Appeals issues to which the Company did not agree. The Company favorably settled during the first quarter of 2013 all issues on appeal with IRS Appeals resulting in a refund of $2 million, including interest. During the fourth quarter of 2010, the IRS opened an examination of the consolidated federal income tax returns for the 2005 through 2009 tax years. The IRS completed its examination during 2013 and the Company tentatively agreed to all proposed adjustments. This agreement is subject to final approval from the Joint Committee on Taxation and the examination will not be considered settled until such approval is received, which is anticipated to occur in the next 12 months. The Company deposited $30 million with the IRS to cover the expected cash taxes and interest resulting from the tentatively agreed adjustments for this examination and the examinations discussed below.
During the first quarter of 2011, the IRS opened examinations of the 2007 through 2008 tax years of CityCenter Holdings, LLC, an unconsolidated affiliate treated as a partnership for income tax purposes and the 2008 through 2009 tax years of MGM Grand Detroit, LLC, a subsidiary treated as a partnership for income tax purposes. The IRS completed these examinations in 2013 and the Company agreed to all proposed adjustments. The impact of these adjustments is included in the $30 million deposit described above.
During the fourth quarter of 2010, the Company and its joint venture partner reached tentative settlement with IRS Appeals with respect to the audit of the 2003 and 2004 tax years of a cost method investee that is treated as a partnership for income tax purposes. The adjustments to which the Company agreed in such tentative settlement were included in the final settlement reached with IRS Appeals with respect to the 2003 and 2004 examination of the consolidated federal income tax return. The IRS completed during 2013 its examination of the 2005 through 2009 tax years of this investee and the Company agreed to all proposed adjustments. The impact of these adjustments is included in the $30 million deposit described above.
As of December 31, 2013, other than adjustments resulting from the federal income tax audits discussed above and the exceptions noted below, the Company was no longer subject to examination of its various state and local tax returns filed for years ended prior to 2009. The state of Michigan initiated during the second quarter of 2013 a review of the Michigan Business Tax returns of MGM Grand Detroit, LLC for the 2009 through 2011 tax years to determine whether to open an examination of one or more of these years but has not yet indicated whether such an examination will take place. During 2010, the state of Illinois initiated an audit of the Company’s Illinois combined returns for the 2006 and 2007 tax years. Such audit closed in 2012 resulting in an immaterial refund of taxes from such years. During 2010, the state of New Jersey began audit procedures of a cost method investee for the 2003 through 2006 tax years. No other state or local income tax returns are currently under examination.
The Company believes that it is reasonably possible that the total amounts of unrecognized tax benefits at December 31, 2013 may decrease by up to $82 million within the next twelve months on the expectation during such period of settlement of the IRS examination of the 2005 through 2009 consolidated federal income tax returns by virtue of final approval from the Joint Committee on Taxation of the findings of the IRS examination team.

Commitments_and_Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2013
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, 2013, the Company was obligated under non-cancellable operating leases and capital leases to make future minimum lease payments as follows:
		Operating		Capital
		Leases		Leases
		(In thousands)
	2014	$	42,951	$	965
	2015		42,164		878
	2016		41,387		234
	2017		16,322		-
	2018		17,739		-
	Thereafter		1,095,046		-
	Total minimum lease payments	$	1,255,609		2,077
	Less: Amounts representing interest				-99
	Total obligations under capital leases				1,978
	Less: Amounts due within one year				-898
	Amounts due after one year			$	1,080
	The current and long-term obligations under capital leases are included in “Other accrued liabilities” and “Other long-term obligations,” respectively. Rental expense for operating leases was $41 million for 2013, $33 million for 2012 and $30 million for 2011, which included short term rentals charged to rent expense. In 2013, rental expense includes $7 million related to the Cotai land concession. 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. Rent recognized for the Cotai land concession is included in “Preopening and start-up expenses” prior to opening.
	In April 2013, the Company entered into a ground lease agreement for an approximate 23 acre parcel of land in connection with the MGM National Harbor project. In December 2013, the Company was awarded a license to operate a casino in Maryland. The ground lease will be accounted for as an operating lease with rent beginning once all land use entitlements have been received. The Company expects to receive all land use entitlements by July 2014.
	Cotai land concession contract. MGM Grand Paradise’s land concession contract for an approximate 17.8 acre site in Cotai, Macau became effective on January 9, 2013 and has an initial term of 25 years. The total land premium payable to the Macau government for the land concession contract is $161 million and is composed of a down payment and eight additional semi-annual payments. As of December 31, 2013, MGM China had paid $71 million of the contract premium recorded within other long-term assets, net. In January 2014, MGM China paid the second semi-annual payment of $15 million under the land concession contract. Including interest on the six remaining semi-annual payments, MGM China has approximately $88 million remaining payable for the land concession contract. In addition, MGM Grand Paradise is required to pay the Macau government approximately $269,000 per year in rent during the course of development of the land and approximately $681,000 per year in rent once the development is completed. The annual rent is subject to review by the Macau government every five years. Under the terms of the land concession contract, MGM Grand Paradise is required to complete the development of the land by January 2018.
	CityCenter construction litigation. In March 2010, Perini Building Company, Inc. (“Perini”), general contractor for CityCenter, filed a lawsuit in the Eighth Judicial District Court for Clark County, State of Nevada, against MGM MIRAGE Design Group (a wholly owned subsidiary of the Company which was the original party to the Perini construction agreement) and certain direct or indirect subsidiaries of CityCenter Holdings, LLC (the “CityCenter Owners”). Perini asserted that CityCenter was substantially completed, but the defendants failed to pay Perini approximately $490 million allegedly due and owing under the construction agreement for labor, equipment and materials expended on CityCenter. The complaint further charged the defendants with failure to provide timely and complete design documents, late delivery to Perini of design changes, mismanagement of the change order process, obstruction of Perini’s ability to complete the Harmon component, and fraudulent inducement of Perini to compromise significant amounts due for its general conditions. The complaint advanced claims for breach of contract, breach of the implied covenant of good faith and fair dealing, tortious breach of the implied covenant of good faith and fair dealing, unjust enrichment and promissory estoppel, and fraud and intentional misrepresentation. Perini seeks compensatory damages, punitive damages, attorneys’ fees and costs.
	In April 2010, Perini served an amended complaint in this case, which joins as defendants many owners of CityCenter residential condominium units (the “Condo Owner Defendants”), added a count for foreclosure of Perini's recorded master mechanic’s lien against the CityCenter property in the amount of approximately $491 million, and asserted the priority of this mechanic’s lien over the interests of the CityCenter Owners, the Condo Owner Defendants and CityCenter lenders in the CityCenter property.
	The CityCenter Owners and the other defendants dispute Perini’s allegations and contend that the defendants are entitled to substantial amounts from Perini, including offsets against amounts claimed to be owed to Perini and its subcontractors and damages based on breach of their contractual and other duties to CityCenter, duplicative payment requests, non-conforming work, lack of proof of alleged work performance, defective work related to the Harmon, property damage and Perini’s failure to perform its obligations to pay certain subcontractors and to prevent filing of liens against CityCenter. Parallel to the court litigation, CityCenter management conducted an extra-judicial program for settlement of CityCenter subcontractor claims. CityCenter has resolved the claims of 219 first-tier Perini subcontractors (including the claims of any lower-tier subcontractors that might have claims through those first-tier subcontractors), with only three remaining for further proceedings along with trial of Perini’s claims and CityCenter’s Harmon-related counterclaim and other claims by CityCenter against Perini and its parent guarantor, Tutor Perini. Two of the remaining subcontractors are implicated in the defective work at the Harmon. In August 2013, Perini recorded an amended notice of lien reducing its lien to approximately $167 million.
	In November 2012, Perini filed a second amended complaint which, among other things, added claims against the CityCenter defendants of breach of contract (alleging that CityCenter’s Owner Controlled Insurance Program (“OCIP”) failed to provide adequate project insurance for Perini with broad coverages and high limits), and tortious breach of the implied covenant of good faith and fair dealing (alleging improper administration by CityCenter of the OCIP and Builders Risk insurance programs).
	CityCenter reached a settlement agreement with certain professional service providers against whom it had asserted claims in this litigation for errors or omissions with respect to the CityCenter project, which settlement has been approved by the court. Further, CityCenter and Perini have entered a settlement agreement which resolves most but not all of the components of Perini’s non-Harmon-related lien claim against CityCenter. Pursuant to the parties’ stipulation, on February 24, 2014, Perini filed a revised lien for $174 million as the amount claimed by Perini and the remaining Harmon-related subcontractors. Trial of the remainder of Perini’s lien claim, the remaining subcontractors’ claims against CityCenter, and CityCenter’s counterclaims against Perini and certain subcontractors for defective work at the Harmon has been rescheduled to commence on September 23, 2014.
	CityCenter Owners and the other defendants will continue to vigorously assert and protect their interests in the Perini lawsuit. The Company believes it is probable that the CityCenter Owners and the other defendants will be liable for $152 million in connection with the non-Harmon settlement agreement and remaining claims in this lawsuit. Amounts determined to be owed would be funded in part under the Company’s completion guarantee which is discussed below. The Company does not believe it is reasonably possible it will be liable for any material amount in excess of its estimate of its probable liability. The Company’s estimate of its probable liability does not include any offset for amounts that may be recovered on its counterclaims against Perini and certain subcontractors for defective work at the Harmon.
	Please see below for further discussion on the Company’s completion guarantee obligation which may be impacted by the outcome of the above litigation and the joint venture’s extra-judicial settlement process.
	CityCenter completion guarantee. In October 2013, the Company entered into a third amended and restated completion and cost overrun guarantee, which is collateralized by substantially all of the assets of Circus Circus Las Vegas, as well as certain undeveloped land adjacent to that property. The terms of the amended and restated completion guarantee provide CityCenter the ability to utilize up to $72 million of net residential proceeds to fund construction costs, or to reimburse the Company for construction costs previously expended. As of December 31, 2013, CityCenter is holding approximately $72 million in a separate bank account representing the remaining condo proceeds available to fund completion guarantee obligations or be reimbursed to the Company. In accordance with the amended and restated completion guarantee, such amounts may only be used to fund construction lien obligations or to reimburse the Company once the Perini litigation is settled.
	As of December 31, 2013, the Company has funded $716 million under the completion guarantee and has accrued a liability of $97 million, which includes estimated litigation costs related to the resolution of disputes with contractors concerning the final construction costs and estimated amounts to be paid to contractors through the legal process related to the Perini litigation. The Company does not believe it is reasonably possible it could be liable for amounts in excess of what it has accrued. The Company’s estimated obligation has been offset by the $72 million of condominium proceeds received and held in escrow by CityCenter, which are available to fund construction lien claims upon the resolution of the Perini litigation. Also, the Company’s accrual reflects certain estimated offsets to the amounts claimed by the contractors. Moreover, the Company has not accrued for any contingent payments to CityCenter related to the Harmon component.
	Harmon demolition. In response to a request by the Clark County Building Division (the “Building Division”), CityCenter engaged an engineer to conduct an analysis, based on all available information, as to the structural stability of the Harmon under building-code-specified load combinations. On July 11, 2011, that engineer submitted the results of his analysis of the Harmon tower and podium in its current as-built condition. The engineer opined, among other things, that “[i]n a code-level earthquake, using either the permitted or current code specified loads, it is likely that critical structural members in the tower will fail and become incapable of supporting gravity loads, leading to a partial or complete collapse of the tower. There is missing or misplaced reinforcing steel in columns, beams, shear walls, and transfer walls throughout the structure of the tower below the twenty-first floor.” Based on this engineering opinion, the Building Division requested a plan of action from CityCenter. CityCenter informed the Building Division that it decided to abate the potential for structural collapse of the Harmon in the event of a code-level earthquake by demolishing the building, and enclosed a plan of action for demolition by implosion prepared by LVI Environmental Services of Nevada, Inc (“LVI”). CityCenter also advised that prior to undertaking the demolition plan of action, it would seek relief from a standing order of the district court judge presiding over the Perini litigation that prohibits alteration or destruction of the building without court approval. In addition, CityCenter supplied the foundational data for the engineering conclusions stated in the July 11, 2011 letter declaring the Harmon’s structural instability in the event of a code-level earthquake. On November 22, 2011, the Building Division required that CityCenter submit a plan to abate the code deficiencies discovered in the Harmon tower.
	In December 2011, CityCenter resubmitted to the Building Division the plan of abatement action prepared by LVI which was first submitted on August 15, 2011, and met with the Building Division about the requirements necessary to obtain demolition permits and approvals. As discussed above, the timing of the demolition of the Harmon is subject to rulings in the Perini litigation.
	The district court presiding over the Perini litigation had previously granted CityCenter’s motion to demolish the Harmon, but stayed the demolition to allow CityCenter an opportunity to conduct additional Phase 4 destructive testing at the Harmon following the court’s order prohibiting CityCenter’s structural engineering expert from extrapolating the results of pre-Phase 4 testing to untested portions of the building.
	In May 2013, CityCenter completed additional Phase 4 destructive testing of 468 structural elements at the Harmon, analysis of which data confirmed the existence of a wide variety of construction defects throughout the Harmon tower. In his June 2013 expert report CityCenter’s structural engineer opined that the additional test results and extrapolation thereof to untested portions of the building show that after a service-level earthquake (typically defined as an earthquake with a 50% chance of occurring in 30 years), the Harmon can be expected to sustain extensive damage and failure of many structural elements, and in a large earthquake, such as a building code-level earthquake, critical elements of the Harmon are likely to fail and lead to a partial or complete collapse of the tower. In April 2013, Perini’s structural engineering expert John A. Martin & Associates (“JAMA”) had sent a letter to the Building Division which declared in part that JAMA no longer believes that the Harmon Tower can be repaired to a code compliant structure, which condition JAMA attributed to CityCenter’s building testing. On July 18, 2013 CityCenter filed a renewed motion with the district court for permission to demolish the Harmon. On August 23, 2013, the court granted CityCenter’s motion, and CityCenter has commenced planning for demolition of the building. On January 31, 2014, the court revoked its prior authorization of demolition of the Harmon, without prejudice to renewal of the application, on the grounds that CityCenter’s non-party builder’s risk insurer requested further testing in the building.
	The Company does not believe it would be responsible for funding any additional remediation efforts under the completion guarantee that might be required with respect to the Harmon; however, the Company’s view is based on a number of developing factors, including with respect to on-going litigation with CityCenter’s contractors, actions by local officials and other developments related to the CityCenter venture, all of which are subject to change.
	Sales and use tax on complimentary meals. In March 2008, the Nevada Supreme Court ruled, in a case involving another gaming company, that food and non-alcoholic beverages purchased for use in providing complimentary meals to customers and to employees were exempt from use tax. The Company had previously paid use tax on these items and had generally filed for refunds for the periods from January 2001 to February 2008 related to this matter, which refunds had not been paid. The Company claimed the exemption on sales and use tax returns for periods after February 2008 in light of this Nevada Supreme Court decision and had not accrued or paid any sales or use tax for those periods. In February 2012, the Nevada Department of Taxation asserted that customer complimentary meals and employee meals were subject to sales tax on a prospective basis commencing February 15, 2012. In July 2012, the Nevada Department of Taxation announced that sales taxes applicable to such meals would be due and payable without penalty or interest at the earlier of certain regulatory, judicial or legislative events or June 30, 2013. The Nevada Department of Taxation’s position stemmed from a Nevada Tax Commission decision concerning another gaming company which stated that complimentary meals provided to customers are subject to sales tax at the retail value of the meal and employee meals are subject to sales tax at the cost of the meal. The Clark County District Court subsequently issued a ruling in such case that held that complementary meals provided to customers were subject to sales tax, while meals provided to employees were not subject to sales tax. This decision was appealed to the Nevada Supreme Court.
	In June 2013, the Company and other similarly situated companies entered into a global settlement agreement with the Nevada Department of Taxation that, when combined with the contemporaneous passage of legislation governing the prospective treatment of complimentary meals (“AB 506”), resolved all matters concerning the prior and future taxability of such meals. AB 506 provides that complimentary meals provided to customers and employees after the effective date of the bill are not subject to either sales or use tax. Under the terms of the global settlement, the Company agreed to withdraw its refund requests and the Nevada Department of Tax agreed to drop its assertion that sales tax was due on such meals up to the effective date of AB 506. Since the Company did not previously accrue either the claims for refund of use taxes or any liability for sales taxes that the Nevada Department of Tax may have asserted prior to entering the global settlement agreement, there is no financial statement impact of entering into the settlement agreement.
	Other guarantees. The Company is 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 $500 million, and the amount of available borrowings under the senior credit facility is reduced by any outstanding letters of credit. At December 31, 2013, the Company had provided $35 million of total letters of credit. At December 31, 2013, MGM China had provided approximately $39 million of guarantees under its credit facility.
	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.

Stockholders_Equity

Stockholders' Equity	12 Months Ended
	Dec. 31, 2013
Equity [Abstract]	'
Stockholders' Equity	'
	NOTE 12 — STOCKHOLDERS’ EQUITY
	Authorized common stock. In June 2011, the stockholders of the Company approved a proposal to amend and restate the Amended and Restated Certificate of Incorporation of the Company to increase the Company’s number of authorized shares of common stock to 1,000,000,000 shares.
	Stock repurchases. Share repurchases are only conducted under repurchase programs approved by the Board of Directors and publicly announced. At December 31, 2013, the Company had 20 million shares available for repurchase under the May 2008 authorization, subject to limitations under the Company’s agreements governing its long-term indebtedness. The Company did not repurchase any shares during 2013, 2012 or 2011.
	MGM China dividend. MGM China paid a $113 million interim dividend in September 2013, of which $58 million remained within the consolidated entity and $55 million was distributed to noncontrolling interests, and a $500 million special dividend in March 2013, of which $255 million remained within the consolidated entity and $245 million was distributed to noncontrolling interests.
	MGM China paid an approximately $400 million special dividend in March 2012, of which approximately $204 million remained within the consolidated entity and approximately $196 million was distributed to noncontrolling interests.
	In February 2014, MGM China's Board of Directors declared a special dividend of approximately $500 million, of which $255 million will remain within the consolidated entity. In addition, in February 2014, MGM China's Board of Directors recommended a final dividend for 2013 of approximately $128 million, subject to approval at the 2014 annual shareholder meeting.

Noncontrolling_Interests

Noncontrolling Interests	12 Months Ended
	Dec. 31, 2013
Noncontrolling Interest [Abstract]	'
Noncontrolling Interests	'
	NOTE 13 — NONCONTROLLING INTERESTS
	As discussed in Note 3, the Company became the controlling shareholder of MGM China and began consolidating the financial position of MGM China in its financial statements as of June 3, 2011. The noncontrolling interests in MGM China and other minor subsidiaries are presented as a separate component of stockholders’ equity in the Company’s consolidated balance sheets, and the net income attributable to noncontrolling interests is presented on the Company’s consolidated statements of operations. Distributions to noncontrolling interests were $318 million, $207 million and $4 million for the years ended December 31, 2013, 2012 and 2011, respectively, related primarily to MGM China dividends. Net income attributable to noncontrolling interests was $213 million, $151 million and $120 million for the years ended December 31, 2013, 2012 and 2011, respectively.

StockBased_Compensation

Stock-Based Compensation	12 Months Ended
	Dec. 31, 2013
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]	'
Stock-Based Compensation	'
	NOTE 14 — STOCK-BASED COMPENSATION
	2005 Omnibus Incentive Plan. The Company’s omnibus incentive plan, as amended (the “Omnibus Plan”), allows it to grant 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. The Omnibus Plan is administered by the Compensation Committee (the “Committee”) of the Board of Directors. The Committee has discretion under the Omnibus Plan regarding which type of awards to grant, the vesting and service requirements, exercise price and other conditions, in all cases subject to certain limits, including:
		•		As amended, the Omnibus Plan allows for the issuance of up to 35 million shares or share-based awards; and
		•		For stock options and SARs, the exercise price of the award must be at least equal to the fair market value of the stock on the date of grant and the maximum term of such an award is 10 years.
	Stock options and SARs granted under all plans generally have terms of either seven or ten years, and in most cases vest in either four or five equal annual installments. RSUs granted vest ratably over four years, a portion of which are subject to achievement of a performance target based on operational results compared to budget in order for such RSUs to be eligible to vest. Expense is recognized primarily on a straight-line basis over the vesting period of the awards net of estimated forfeitures. Estimated forfeitures are updated periodically with actual forfeitures recognized currently to the extent they differ from the estimate.
	PSUs granted vest subject to a market condition, in which a percentage of the target award granted vests based on the performance of the Company’s stock price in relation to the target price at the end of a three year performance period. Specifically, the ending average stock price must equal the target price, which is defined as 125% of the beginning average stock price, in order for the target award to vest. No shares are issued unless the ending average stock price is at least 60% of the target price, and the maximum payout is capped at 160% of the target award. If the ending average stock price is at least 60% or more of the target price, then the amount of units granted in the target award is multiplied by the stock performance multiplier. The stock performance multiplier equals the ending average stock price divided by the target price. For this purpose, the target and ending prices are based on the average closing price of the Company’s common stock over the 60 calendar day periods ending on the grant date and the third anniversary of the grant date. Expense is recognized on a graded basis over the performance period beginning on the date of grant. Estimated forfeitures are updated periodically with actual forfeitures recognized currently to the extent they differ from the estimate.
	As of December 31, 2013, the Company had an aggregate of approximately 15 million shares of common stock available for grant as share-based awards under the Omnibus Plan. A summary of activity under the Company’s share-based payment plans for the year ended December 31, 2013 is presented below:
	Stock options and stock appreciation rights (“SARs”)
			Units		Weighted		Weighted		Aggregate
			(000’s)		Average		Average		Intrinsic
					Exercise		Remaining		Value
					Price		Contractual		(000’s)
							Term
	Outstanding at January 1, 2013			22,929	$	14.44
	Granted			1,717		19.98
	Exercised			-3,027		10.65
	Forfeited or expired			-5,545		16.09
	Outstanding at December 31, 2013			16,074		15.22		3.78	$	165,484
	Vested and expected to vest at December 31, 2013			15,726		15.21		3.73	$	162,736
	Exercisable at December 31, 2013			10,393		16.37		2.85	$	106,300
	As of December 31, 2013, there was a total of $32 million of unamortized compensation related to stock options and SARs expected to vest, which is expected to be recognized over a weighted-average period of 1.6 years.
	Restricted stock units (“RSUs”) and performance share units (“PSUs”)
			RSUs				PSUs
					Weighted				Weighted		Weighted
					Average				Average		Average
			Units		Grant-Date		Units		Grant-Date		Target
			(000’s)		Fair Value		(000’s)		Fair Value		Price
	Nonvested at January 1, 2013			1,424	$	10.17		688	$	10.03	$	13.37
	Granted			566		19.38		373		21.01		23.50
	Vested			-580		10.66		-		-		-
	Forfeited			-71		10.28		-6		10.03		13.37
	Nonvested at December 31, 2013			1,339		13.85		1,055		13.91		16.95
	The vested RSUs amount in the table above includes approximately 62,000 vested shares deferred by members of the Board of Directors that will not release until termination from the board. As of December 31, 2013, there was a total of $15 million of unamortized compensation related to RSUs which is expected to be recognized over a weighted-average period of 1.7 years. As of December 31, 2013, there was a total of $10 million of unamortized compensation related to PSUs which is expected to be recognized over a weighted-average period of 2.2 years.
	The following table includes additional information related to stock options, SARs and RSUs:
			Year Ended December 31,
			2013		2012		2011
			(In thousands)
	Intrinsic value of share-based awards exercised or RSUs vested		$	28,880	$	6,451	$	4,841
	Income tax benefit from share-based awards exercised or RSUs vested			9,975		2,236		1,675
	The Company net settles stock option and SAR exercises, whereby shares of common stock are issued equivalent to the intrinsic value of the option or SAR less applicable taxes.
	MGM China Share Option Plan. The Company’s subsidiary, MGM China, adopted an equity award plan in 2011 for grants of stock options to purchase ordinary shares of MGM China to eligible directors, employees and non-employees of MGM China and its subsidiaries (“MGM China Plan”). The MGM China Plan is administered by MGM China’s Board of Directors, which has the discretion to determine the exercise price and term of the award, as well as other conditions, in all cases subject to certain limits, including:
		•		The maximum number of shares which may be issued upon exercise of all options to be granted under the MGM China Plan shall not in aggregate exceed 10% of the total number of shares in issue as of the date of the shareholders’ approval of the MGM China Plan; and
		•		The exercise price of the award must be the higher of the closing price of the stock on the offer date, or the average of the closing price for the five business days immediately preceding the offer date, and the maximum term of the award must not exceed ten years.
	Stock options currently granted under the MGM China Plan have a term of ten years, and vest in four equal annual installments. Expense is recognized on a straight-line basis over the vesting period of the awards net of estimated forfeitures. Forfeitures are estimated at the time of grant, with such estimate updated periodically and with actual forfeitures recognized currently to the extent they differ from the estimate.
	As of December 31, 2013, MGM China had an aggregate of approximately 359 million shares of options available for grant as share-based awards. A summary of activity under the MGM China Plan for the year ended December 31, 2013 is presented below:
	Stock options
			Units		Weighted		Weighted		Aggregate
			(000’s)		Average		Average		Intrinsic
					Exercise		Remaining		Value
					Price		Contractual		(000’s)
							Term
	Outstanding at January 1, 2013			19,235	$	1.98
	Granted			1,110		3.20
	Exercised			-2,704		2.00
	Forfeited or expired			-725		2.05
	Outstanding at December 31, 2013			16,916		2.06		7.49	$	37,291
	Vested and expected to vest at December 31, 2013			16,394		2.06		7.48	$	21,396
	Exercisable at December 31, 2013			6,484		1.98		7.34	$	14,769
	As of December 31, 2013, there was a total of $10 million of unamortized compensation related to stock options expected to vest, which is expected to be recognized over a weighted-average period of 1.7 years.
	The intrinsic value of share-based awards exercised during the year ended December 31, 2013 was $3 million. When shares of common stock are issued pursuant to the exercise of share-based awards, MGM China repurchases and cancels an equivalent number of shares. For the year ended December 31, 2013, MGM China received proceeds of $6 million related to the exercise of share-based awards and expended $9 million to repurchase common stock for cancelation.
	Recognition of compensation cost. Compensation cost for both the Omnibus Plan and MGM China Plan was recognized as follows:
			Year Ended December 31,
			2013		2012		2011
		(In thousands)
Compensation cost
Omnibus Plan		$	27,201	$	37,588	$	41,103
MGM China Plan			6,221		5,840		3,176
Total compensation cost			33,422		43,428		44,279
Less: Reimbursed costs and other			-1,090		-3,868		-4,572
Compensation cost recognized as expense			32,332		39,560		39,707
Less: Related tax benefit			-		-1,660		-12,712
Compensation expense, net of tax benefit		$	32,332	$	37,900	$	26,995
Compensation cost for SARs granted under the Omnibus Plan is based on the fair value of each award, measured by applying the Black-Scholes model on the date of grant, using the following weighted-average assumptions:
		Year Ended December 31,
		2013		2012		2011
Expected volatility			54 %		65 %		72 %
Expected term			4.9 yrs.		5.0 yrs.		4.9 yrs.
Expected dividend yield			0 %		0 %		0 %
Risk-free interest rate			1.6 %		0.7 %		1.0 %
Weighted-average fair value of SARs granted		$	9.44	$	5.60	$	5.29
Expected volatility is based in part on historical volatility and in part on implied volatility based on traded options on the Company’s stock. The expected term considers the contractual term of the option as well as historical exercise and forfeiture behavior. The risk-free interest rate is based on the rates in effect on the grant date for U.S. Treasury instruments with maturities matching the relevant expected term of the award.
Compensation cost for PSUs granted under the Omnibus Plan is based on the fair value of each award, measured by applying a Monte Carlo simulation method on the date of grant, using the following weighted-average assumptions:
		Year Ended December 31,
		2013		2012		2011
Expected volatility			40 %		49 %		NA
Expected term			3.0 yrs.		3.0 yrs.		NA
Expected dividend yield			0 %		0 %		NA
Risk-free interest rate			0.6 %		0.4 %		NA
Weighted-average fair value of PSUs granted		$	21.01	$	10.03		NA
Expected volatility is based in part on historical volatility and in part on implied volatility based on traded options on the Company’s stock. The expected term is equal to the three year performance period. The risk-free interest rate is based on the rates in effect on the grant date for U.S. Treasury instruments with maturities matching the relevant expected term of the award.
Compensation cost for stock options granted under the MGM China Plan is based on the fair value of each award, measured by applying the Black-Scholes model on the date of grant, using the following weighted-average assumptions:
		Year Ended December 31,
		2013		2012		2011
Expected volatility			46 %		60 %		60 %
Expected term			8.0 yrs.		8.0 yrs.		8.0 yrs.
Expected dividend yield			1.2 %		0 %		0 %
Risk-free interest rate			1.7 %		2.1 %		2.1 %
Weighted-average fair value of options granted		$	1.39	$	1.13	$	1.26
Expected volatilities are based on a blend of historical volatility from a selection of companies in MGM China’s peer group and historical volatility of MGM China’s stock price. Expected term considers the contractual term of the option as well as historical exercise behavior of previously granted options. Dividend yield is based on the estimate of annual dividends expected to be paid at the time of the grant. The risk-free interest rate is based on rates in effect at the valuation date for the Hong Kong Exchange Fund Notes with maturities matching the relevant expected term of the award.

Employee_Benefit_Plans

Employee Benefit Plans	12 Months Ended
	Dec. 31, 2013
Compensation And Retirement Disclosure [Abstract]	'
Employee Benefit Plans	'
	NOTE 15 — EMPLOYEE BENEFIT PLANS
	Multiemployer benefit plans. Employees of the Company who are members of various unions are covered by union-sponsored, collectively bargained, multiemployer health and welfare and defined benefit pension plans. Of these plans, the Company considers the Southern Nevada Culinary and Bartenders Pension Plan (the “Pension Plan”), under the terms of collective-bargaining agreements with the Local Joint Executive Board of Las Vegas for and on behalf of Culinary Workers Union Local No. 226 and Bartenders Union Local No. 165 to be individually significant. The risk of participating in the Pension Plan 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;
		d)	If the Pension 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.
	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’s participation in the Pension Plan is outlined in the table below.
									Expiration Date
					Pension Protection Act				of Collective
			EIN/Pension		Zone Status (1)				Bargaining
	Pension Fund		Plan Number		2012		2011		Agreements (2)
	Southern Nevada Culinary and Bartenders Pension Plan			88-6016617/001		Green		Green		11/12/14 - 5/31/18
		-1	The trustees of the Pension Plan have elected to apply the extended amortization and the special ten year asset smoothing rules under the Pension Relief Act of 2010.
		-2	The Company is party to ten collective-bargaining agreements that require contributions to the Pension Plan. The agreements between CityCenter Hotel Casino, LLC, Bellagio, Mandalay Corp., MGM Grand Hotel, LLC and the Local Joint Executive Board of Las Vegas are the most significant because more than half of the Company’s employee participants in the Pension Plan are covered by those four agreements.
	Contributions to the Company’s multiemployer pension plans and other multiemployer benefit plans were as follows:
			Year Ended December 31,
			2013		2012		2011
			(In thousands)
	Multiemployer Pension Plans
	Southern Nevada Culinary and Bartenders Pension Plan		$	37,691	$	35,556	$	31,476
	Other pension plans not individually significant			8,280		8,083		7,812
	Total multiemployer pension plans		$	45,971	$	43,639	$	39,288
	Multiemployer Benefit Plans Other Than Pensions
	UNITE HERE Health		$	167,494	$	162,453	$	160,270
	Other			15,367		14,172		13,608
	Total multiemployer benefit plans other than pensions		$	182,861	$	176,625	$	173,878
	Hours worked in 2013 increased approximately 3% compared to 2012. Hours worked in 2012 increased approximately 1% compared to 2011 and the contribution rate to the Pension Plan increased in mid-2012 as defined under the collective bargaining agreements. Bellagio, Aria, Mandalay Bay and MGM Grand Las Vegas were listed in the Pension Plan’s Forms 5500 as providing more than 5% of the total contributions for the plan years ended December 31, 2012 and 2011. At the date the financial statements were issued, Form 5500 was not available for the plan year ending in 2013. No surcharges were imposed on the Company’s contributions to any of the plans.
	Self insurance. The Company is self-insured for most health care benefits and workers compensation for its non-union employees. The liability for health care claims filed and estimates of claims incurred but not reported was $19 million and $22 million at December 31, 2013 and 2012, respectively. The workers compensation liability for claims filed and estimates of claims incurred but not reported was $42 million and $40 million as of December 31, 2013 and 2012, respectively. Both liabilities are included in “Other accrued liabilities.”
	Retirement savings plans. The Company has retirement savings plans under Section 401(k) of the IRC for eligible employees. The plans allow employees to defer, within prescribed limits, up to 30% of their income on a pre-tax basis through contributions to the plans. The Company suspended its matching contributions to the plan in 2009, though certain employees at MGM Grand Detroit and Four Seasons were still eligible for matching contributions. The Company reinstated a more limited 401(k) company contribution in 2011 and will continue to monitor the plan contributions as the economy changes. In the case of certain union employees, the Company contributions to the plan are based on hours worked. The Company recorded charges for 401(k) contributions of $13 million, $12 million and $10 million in 2013, 2012 and 2011, respectively.
	The Company maintains nonqualified deferred retirement plans for certain key employees. The plans allow participants to defer, on a pre-tax basis, a portion of their salary and bonus and accumulate tax deferred earnings, plus investment earnings on the deferred balances, as a deferred tax savings. All employee deferrals vest immediately. In 2009, the Company suspended contributions to the plan.
	The Company also maintains nonqualified supplemental executive retirement plans (“SERP”) for certain key employees. Until September 2008, the Company made quarterly contributions intended to provide a retirement benefit that is a fixed percentage of a participant’s estimated final five-year average annual salary, up to a maximum of 65%. The Company has indefinitely suspended these contributions. Employees do not make contributions under these plans. A portion of the Company contributions and investment earnings thereon vest after three years of SERP participation and the remaining portion vests after both five years of SERP participation and 10 years of continuous service.
	MGM China. MGM China contributes to a retirement plan as part of an employee benefits package for eligible employees. Contributions to the retirement plan were $5 million, $4 million and $2 million for the years ended December 31, 2013, 2012, and 2011, respectively.

Property_Transactions_Net

Property Transactions, Net	12 Months Ended
	Dec. 31, 2013
Text Block [Abstract]	'
Property Transactions, Net	'
	NOTE 16 — PROPERTY TRANSACTIONS, NET
	Property transactions, net consisted of the following:
		Year Ended December 31,
		2013		2012		2011
		(In thousands)
	Corporate buildings impairment charge	$	44,510	$	-	$	-
	Other Nevada land impairment charge		20,354		-		-
	Grand Victoria investment impairment		36,607		85,009		-
	Borgata investment impairment		-		65,000		61,962
	Las Vegas Strip land impairment		-		366,406		-
	Atlantic City land impairment		-		166,569		-
	Silver Legacy investment impairment		-		-		22,966
	Circus Circus Reno impairment		-		-		79,658
	Other property transactions, net		23,290		25,065		14,012
		$	124,761	$	708,049	$	178,598
	Corporate Buildings. During the second quarter of 2013, the Company recorded an impairment charge of $45 million related to corporate buildings which are expected to be removed from service. In June 2013, the Company executed agreements formalizing the details of a joint venture to build a new Las Vegas arena project, of which the Company will own 50%, that will be located on the land underlying these buildings.
	Other Nevada Land. The Company owns approximately 170 acres of land in Jean, Nevada and owned approximately 89 acres in and around Sloan, Nevada. In 2013, the Company recorded an impairment charge of $20 million based on an estimated fair value of $24 million, due to an increased probability of sale in which the Company did not believe it was likely that the carrying value of the land would be recovered. Fair value was determined based on recent indications from market participants. In the fourth quarter of 2013, the Company sold the Sloan land.
	Unconsolidated affiliates. See Note 6 for additional information related to the Grand Victoria and Silver Legacy investment impairment charges.
	Borgata. The Company determined that it was necessary to record an other-than-temporary impairment charge for its investment in Borgata of $65 million as of December 31, 2012 using an estimated fair value for its investment of $120 million based on a discounted cash flow analysis. Borgata's 2012 operating results did not meet previous forecasts. While 2012 results for Borgata were significantly impacted by Hurricane Sandy, management believed the challenging environment in Atlantic City would continue and lowered 2013 estimates below what was previously forecasted. Additionally, the Company used a long-term growth rate of 2.5% and a discount rate of 10.5%, based on its assessment of risk associated with the estimated cash flows. This analysis is sensitive to management assumptions, and increases or decreases in these assumptions would have a material impact on the analysis.
	The Company determined that it was necessary to record an other-than-temporary impairment charge of $62 million as of December 31, 2011 using an estimated fair value for its investment of $185 million based on a discounted cash flow analysis. Key assumptions in such analysis include management's estimates of future cash flows, including outflows for capital expenditures, an appropriate discount rate, and long-term growth rate. At the time, there was significant uncertainty surrounding Borgata's future operating results, due primarily to the planned opening of a major new resort in the Atlantic City market during 2012 and other additional competition expected in surrounding markets. As a result, for purposes of this analysis, management reflected a decrease in forecasted cash flows in 2012 and 2013. Additionally, the Company used a long-term growth rate of 3% and a discount rate of 10.5%, based on its assessment of risk associated with the estimated cash flows.
	Las Vegas Strip land. The Company owns 33.5 acres on the north end of the Las Vegas Strip, which it has been holding for future development. During 2012, the Company focused its development efforts on other jurisdictions, which led it to review its significant development land holdings for impairment indicators. Due to the Company’s focus on future development outside of the Las Vegas area, it did not believe it was likely it would recover the carrying value of its 33.5 acres of land on the north end of the Las Vegas Strip on an undiscounted basis. Therefore, the Company recorded an impairment charge of $366 million as of December 31, 2012 based on an estimated fair value of $214 million for the land. The Company determined fair value of the land using a market approach based on an assessment of comparable land sales in Las Vegas, adjusted for size and location factors based on comparisons to its land.
	Atlantic City land. The Company owns two sites for a total of approximately 86 acres in Atlantic City, which it has been holding for future development. The Company recorded an impairment charge of $167 million as of December 31, 2012 based on an estimated fair value of $125 million for the land. Due to the Company’s focus on future development outside of Atlantic City, the deterioration the Atlantic City market had experienced and the initial underperformance of a new resort that opened in 2012, it did not believe it was likely it would recover the carrying value of this land on an undiscounted basis. The Company determined fair value of the land using a market approach based on assessment of comparable land sales in Atlantic City, adjusted for size and location factors based on comparisons to its land.
	Circus Circus Reno. At September 30, 2011 the Company reviewed the carrying value of its Circus Circus Reno long-lived assets for impairment using revised operating forecasts developed by management for that resort in the third quarter of 2011. Due to the then current and forecasted market conditions and results of operations through September 30, 2011 being lower than previous forecasts, the Company recorded a non-cash impairment charge of $80 million in the third quarter of 2011 in "Property transactions, net," primarily related to a write-down of Circus Circus Reno's long-lived assets. The Company's discounted cash flow analysis for Circus Circus Reno included estimated future cash inflows from operations and estimated future cash outflows for capital expenditures utilizing an estimated pre-tax discount rate of 16.5% and a long-term growth rate of 2%.
	Other. Other property transactions, net in 2013 include miscellaneous asset disposals and demolition costs. Other property transactions, net in 2012 include write-downs related to the remodeling of the theatre at Mandalay Bay, the renovation of the IMAX theatre at Luxor and various other miscellaneous asset disposals and disposal costs. Other property transactions, net in 2011 include the write-off of $5 million of goodwill related to Railroad Pass.

Segment_Information

Segment Information	12 Months Ended
	Dec. 31, 2013
Segment Reporting [Abstract]	'
Segment Information	'
	NOTE 17 — SEGMENT INFORMATION
	The Company’s management views each of its casino resorts as an operating segment. Operating segments are aggregated based on their similar economic characteristics, types of customers, types of services and products provided, the regulatory environments in which they operate, and their management and reporting structure. The Company’s principal operating activities occur in two geographic regions: the United States and Macau S.A.R. The Company has aggregated its operations into two reportable segments based on the similar characteristics of the operating segments within the regions in which they operate: wholly owned domestic resorts and MGM China. The Company’s operations related to investments in unconsolidated affiliates, MGM Hospitality, and certain other corporate and management operations 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 non-GAAP measure defined as Adjusted EBITDA before corporate expense and stock compensation expense related to the MGM Resorts stock option plan, which are not allocated to the reportable segments. MGM China recognizes stock compensation expense related to its stock compensation plan which is included in the calculation of Adjusted EBITDA for MGM China. Adjusted EBITDA is a non-GAAP measure defined as earnings before interest and other non-operating income (expense), taxes, depreciation and amortization, preopening and start-up expenses, property transactions, net and the gain on the MGM China transaction.
	The following tables present the Company’s segment information:
		Year Ended December 31,
		2013		2012		2011
		(In thousands)
	Net Revenues:
	Wholly owned domestic resorts	$	6,052,644	$	5,932,791	$	5,892,902
	MGM China		3,316,928		2,807,676		1,534,963
	Reportable segment net revenues		9,369,572		8,740,467		7,427,865
	Corporate and other		440,091		420,377		421,447
		$	9,809,663	$	9,160,844	$	7,849,312
	Adjusted EBITDA:
	Wholly owned domestic resorts	$	1,442,686	$	1,325,220	$	1,298,116
	MGM China		814,109		679,345		359,686
	Reportable segment Adjusted Property EBITDA		2,256,795		2,004,565		1,657,802
	Corporate and other		-157,983		-286,166		-101,233
			2,098,812		1,718,399		1,556,569
	Other operating income (expense):
	Preopening and start-up expenses		-13,314		-2,127		316
	Property transactions, net		-124,761		-708,049		-178,598
	Gain on MGM China transaction		-		-		3,496,005
	Depreciation and amortization		-849,225		-927,697		-817,146
	Operating income		1,111,512		80,526		4,057,146
	Non-operating expense:
	Interest expense, net of amounts capitalized		-857,347		-1,116,358		-1,086,832
	Non-operating items from unconsolidated affiliates		-157,338		-90,020		-119,013
	Other, net		-9,062		-608,361		-19,670
			-1,023,747		-1,814,739		-1,225,515
	Income (loss) before income taxes		87,765		-1,734,213		2,831,631
	Benefit (provision) for income taxes		-31,263		117,301		403,313
	Net income (loss)		56,502		-1,616,912		3,234,944
	Less: Net income attributable to noncontrolling interests		-213,108		-150,779		-120,307
	Net income (loss) attributable to MGM Resorts International	$	(156,606)	$	(1,767,691)	$	3,114,637
		At December 31,
		2013		2012
		(In thousands)
	Total assets:
	Wholly owned domestic resorts	$	13,151,719	$	13,442,067
	MGM China		9,203,742		9,097,845
	Reportable segment total assets		22,355,461		22,539,912
	Corporate and other		3,776,414		3,750,535
	Eliminated in consolidation		-21,690		-5,709
		$	26,110,185	$	26,284,738
		At December 31,
		2013		2012
		(In thousands)
	Property and equipment, net:
	Wholly owned domestic resorts	$	11,787,880	$	12,145,724
	MGM China		957,769		737,920
	Reportable segment property and equipment, net		12,745,649		12,883,644
	Corporate and other		1,331,253		1,316,717
	Eliminated in consolidation		-21,690		-5,709
		$	14,055,212	$	14,194,652
		Year Ended December 31,
		2013		2012		2011
		(In thousands)
	Capital expenditures:
	Wholly owned domestic resorts	$	216,147	$	258,519	$	235,638
	MGM China		254,516		80,018		26,649
	Reportable segment capital expenditures		470,663		338,537		262,287
	Corporate and other		107,442		89,935		38,957
Eliminated in consolidation		-15,981		-5,709		-
	$	562,124	$	422,763	$	301,244

Related_Party_Transactions

Related Party Transactions	12 Months Ended
	Dec. 31, 2013
Related Party Transactions [Abstract]	'
Related Party Transactions	'
	NOTE 18 — 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 and $3 million per year for Crystals. The Company earned fees of $38 million, $32 million and $33 million for the years ended December 31, 2013, 2012 and 2011. The Company is being reimbursed for certain costs in performing its development and management services. During the years ended December 31, 2013, 2012 and 2011 the Company incurred $364 million, $355 million and $346 million, respectively, of costs reimbursable by the joint venture, primarily for employee compensation and certain allocated costs. As of December 31, 2013 and 2012, CityCenter owed the Company $49 million and $50 million, respectively, for management services and reimbursable costs.
	Other agreements. The Company owns OE Pub, LLC, which leases retail space in Crystals. The Company recorded $1 million of expense related to the lease agreement in each of the years ended December 31, 2013, 2012 and 2011. The Company entered into an agreement with CityCenter whereby the Company provides CityCenter the use of its aircraft on a time sharing basis. CityCenter is charged a rate that is based on Federal Aviation Administration regulations, which provides for reimbursement for specific costs incurred by the Company. During each of the years ended December 31, 2013, 2012 and 2011, the Company was reimbursed $3 million, for aircraft related expenses. The Company has certain other arrangements with CityCenter for the provision of certain shared services, reimbursement of costs and other transactions undertaken in the ordinary course of business.
	MGM China
	Ms. Pansy Ho is member of the Board of Directors of, and holds a minority ownership interest in, MGM China. Ms. Pansy 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 and MGM China provides rental of hotel rooms at wholesale room rates to Shun Tak and receives rebates for ferry tickets from Shun Tak. MGM China incurred expenses of $18 million, $13 million and $9 million for the years ended December 31, 2013 and 2012, and for the period from June 3, 2011 through December 31, 2011, respectively. MGM China recorded revenue of less than $1 million related to hotel rooms provided to Shun Tak for the years ended December 31, 2013 and 2012, and for the period from June 3, 2011 through December 31, 2011, respectively. As of December 31, 2013 and 2012, MGM China did not have a material payable to or receivable from Shun Tak.
	In connection with the MGM China IPO, 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. Pansy Ho indirectly holds a noncontrolling interest, entered into a brand license agreement with MGM China. MGM China pays a license fee to MGM Branding and Development equal to 1.75% of MGM China’s consolidated net revenue, subject to an annual cap of $25 million for the initial year of the agreement, prorated to $15 million for the portion of 2011 subsequent to the date of the IPO. The annual cap increases by 20% per annum for each subsequent calendar year during the term of the agreement. During the years ended December 31, 2013, 2012 and 2011, MGM China incurred total license fees of $36 million, $30 million and $15 million, respectively, equal to the cap for each annual period. Such amounts have been eliminated in consolidation.
	MGM China also entered into a development services agreement with MGM Branding and Development to provide certain development services to MGM China in connection with future expansion of existing projects and development of future resort gaming projects. Such services are subject to a development fee which is calculated separately for each resort casino property upon commencement of development. For each such property, the fee is 2.625% of project costs, to be paid in installments as certain benchmarks are achieved. Project costs are the total costs incurred for the design, development and construction of the casino, casino hotel, integrated resort and other related sites associated with each project, including costs of construction, fixtures and fittings, signage, gaming and other supplies and equipment and all costs associated with the opening of the business to be conducted at each project but excluding the cost of land and gaming concessions and financing costs. The development fee is subject to an annual cap of $20 million per annum for the initial financial year of each project, which amount shall increase by 10% per annum for each succeeding financial year during the term of the agreement. For the years ended December 31, 2013 and 2012 MGM China incurred $15 million and $6 million of fees, respectively, to MGM Branding and Development related to development services. Such amount is eliminated in consolidation. MGM China did not incur any development fees for the period from June 3, 2011 through December 31, 2011.
	An entity owned by Ms. Pansy Ho received distributions of $18 million, $11 million and $4 million during the years ended December 31, 2013, 2012 and 2011, respectively, in connection with the ownership of a noncontrolling interest in MGM Branding and Development Holdings, Ltd.
	Convertible notes
	In June 2011, the Company sold $300 million in aggregate principal amount of the Company’s 4.25% convertible senior notes due 2015 to an indirect wholly owned subsidiary of Ms. Pansy Ho. See Note 9 for additional information related to the convertible notes.

Consolidating_Condensed_Financ

Consolidating Condensed Financial Information	12 Months Ended
	Dec. 31, 2013
Organization Consolidation And Presentation Of Financial Statements [Abstract]	'
Consolidating Condensed Financial Information	'
	NOTE 19 — CONSOLIDATING CONDENSED FINANCIAL INFORMATION
	The Company’s domestic subsidiaries, excluding certain minor subsidiaries, its domestic insurance subsidiaries and MGM Grand Detroit, LLC and its subsidiaries, have fully and unconditionally guaranteed, on a joint and several basis, payment of the senior credit facility and the outstanding debt securities. The Company’s international subsidiaries, including MGM China, are not guarantors of such indebtedness. Separate condensed financial statement information for the subsidiary guarantors and non-guarantors as of December 31, 2013 and 2012 and for the years ended December 31, 2013, 2012 and 2011 is as follows:
	CONDENSED CONSOLIDATING BALANCE SHEET INFORMATION
		At December 31, 2013
		Parent			Guarantor				Non-Guarantor			Elimination			Consolidated
					Subsidiaries				Subsidiaries
		(In thousands)
	Current assets	$	494,296		$	903,537			$	1,322,170		$	-564		$	2,719,439
	Property and equipment, net		-			12,552,828				1,514,356			-11,972			14,055,212
	Investments in subsidiaries		20,017,270			4,037,168				-			-24,054,438			-
	Investments in and advances to unconsolidated affiliates		-			1,367,071				7,765			-			1,374,836
	Other non-current assets		167,552			542,259				7,250,887			-			7,960,698
		$	20,679,118		$	19,402,863			$	10,095,178		$	(24,066,974)		$	26,110,185
	Current liabilities	$	340,343		$	959,118			$	941,431		$	-25,564		$	2,215,328
	Intercompany accounts		1,446,952			-1,470,305				23,353			-			-
	Deferred income taxes		2,120,676			-				309,738			-			2,430,414
	Long-term debt		12,441,112			4,836				1,001,282			-			13,447,230
	Other long-term obligations		98,856			41,758				976			-			141,590
	Total liabilities		16,447,939			-464,593				2,276,780			-25,564			18,234,562
	MGM Resorts International stockholders’ equity		4,231,179			19,867,456				4,173,954			-24,041,410			4,231,179
	Noncontrolling interests		-			-				3,644,444			-			3,644,444
	Total stockholders’ equity		4,231,179			19,867,456				7,818,398			-24,041,410			7,875,623
		$	20,679,118		$	19,402,863			$	10,095,178		$	-24,066,974		$	26,110,185
		At December 31, 2012
		Parent			Guarantor				Non-Guarantor			Elimination			Consolidated
					Subsidiaries				Subsidiaries
		(In thousands)
	Current assets	$	438,878		$	891,826			$	1,176,844		$	-456		$	2,507,092
	Property and equipment, net		-			12,881,152				1,325,472			-11,972			14,194,652
	Investments in subsidiaries		19,785,312			4,077,228				-			-23,862,540			-
	Investments in and advances to unconsolidated affiliates		-			1,437,151				7,396			-			1,444,547
	Other non-current assets		163,372			541,634				7,433,441			-			8,138,447
		$	20,387,562		$	19,828,991			$	9,943,153		$	-23,874,968		$	26,284,738
	Current liabilities	$	272,138		$	989,864			$	672,125		$	-8,456		$	1,925,671
	Intercompany accounts		960,610			-983,288				22,678			-			-
	Deferred income taxes		2,222,823			-				251,066			-			2,473,889
	Long-term debt		12,432,581			155,413				1,001,289			-			13,589,283
	Other long-term obligations		133,862			45,303				714			-			179,879
	Total liabilities		16,022,014			207,292				1,947,872			-8,456			18,168,722
	MGM Resorts International stockholders’ equity		4,365,548			19,621,699				4,244,813			-23,866,512			4,365,548
	Noncontrolling interests		-			-				3,750,468			-			3,750,468
	Total stockholders’ equity		4,365,548			19,621,699				7,995,281			-23,866,512			8,116,016
		$	20,387,562		$	19,828,991			$	9,943,153		$	(23,874,968)		$	26,284,738
	CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS AND COMPREHENSIVE INCOME INFORMATION
		Year Ended December 31, 2013
		Parent			Guarantor				Non-			Elimination			Consolidated
					Subsidiaries				Guarantor
									Subsidiaries
		(In thousands)
	Net revenues	$	-		$	5,955,001			$	3,856,728		$	-2,066		$	9,809,663
	Equity in subsidiaries’ earnings		663,605			289,384				-			-952,989			-
	Expenses:
	Casino and hotel operations		5,644			3,622,940				2,632,198			(2,066	)		6,258,716
	General and administrative		4,432			1,051,757				222,261			-			1,278,450
	Corporate expense		66,307			125,500				41,938			(17,000	)		216,745
	Preopening and start-up expenses		-			4,205				9,109			-			13,314
	Property transactions, net		-			126,773				(2,012	)		-			124,761
	Depreciation and amortization		-			522,900				326,325			-			849,225
			76,383			5,454,075				3,229,819			-19,066			8,741,211
	Income from unconsolidated affiliates		-			43,038				22			-			43,060
	Operating income (loss)		587,222			833,348				626,931			-935,989			1,111,512
	Interest expense, net of amounts capitalized		-805,933			-6,333				-45,081			-			-857,347
	Other, net		39,524			-160,721				-45,203			-			-166,400
Income (loss) before income taxes		-179,187			666,294				536,647			-935,989			87,765
Benefit (provision) for income taxes		22,581			11,111				-64,955			-			-31,263
Net income (loss)		-156,606			677,405				471,692			-935,989			56,502
Less: Net income attributable to noncontrolling interests		-			-				-213,108			-			-213,108
Net income (loss) attributable to MGM Resorts International	$	-156,606		$	677,405			$	258,584		$	-935,989		$	-156,606
Net income (loss)	$	-156,606		$	677,405			$	471,692		$	-935,989		$	56,502
Other comprehensive income (loss), net of tax
Foreign currency translation adjustment		-1,915			-1,915				-3,993			3,830			-3,993
Other		115			115				-			(115	)		115
Other comprehensive income (loss)		(1,800	)		(1,800	)			(3,993	)		3,715			(3,878	)
Comprehensive income (loss)		-158,406			675,605				467,699			-932,274			52,624
Less: Comprehensive income attributable to noncontrolling interests		-			-				-211,030			-			-211,030
Comprehensive income (loss) attributable to MGM Resorts International	$	-158,406		$	675,605			$	256,669		$	(932,274)		$	-158,406
CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS INFORMATION
	Year Ended December 31, 2013
	Parent			Guarantor				Non-			Elimination			Consolidated
				Subsidiaries				Guarantor
								Subsidiaries
	(In thousands)
Cash flows from operating activities
Net cash provided by (used in) operating activities	$	-819,282		$	1,089,341			$	1,040,389		$	-		$	1,310,448
Cash flows from investing activities
Capital expenditures, net of construction payable		-			-311,635				-250,489			-			-562,124
Dispositions of property and equipment		-			11,648				6,382			-			18,030
Investments in and advances to unconsolidated affiliates		-23,600			-5,353				-			-			-28,953
Distributions from unconsolidated affiliates in excess of earnings		-			110				-			-			110
Investments in treasury securities - maturities longer than 90 days		-			-219,546				-			-			-219,546
Proceeds from treasury securities - maturities longer than 90 days		-			252,592				-			-			252,592
Other		-			1,354				-21,600			-			-20,246
Net cash used in investing activities		-23,600			-270,830				-265,707			-			-560,137
Cash flows from financing activities
Net borrowings under bank credit facilities - maturities of 90 days or less		-28,000			-				-			-			-28,000
Borrowings under bank credit facilities - maturities longer than 90 days		2,343,000			-				450,000			-			2,793,000
Repayments under bank credit facilities - maturities longer than 90 days		-2,343,000			-				-450,000			-			-2,793,000
Issuance of senior notes		500,000			-				-			-			500,000
Retirement of senior notes, including premiums paid		-462,226			-150,036				-			-			-612,262
Debt issuance costs		-23,576			-				-			-			-23,576
Intercompany accounts		985,465			-657,260				-328,205			-			-
Distributions to noncontrolling interest owners		-			-				-318,348			-			-318,348
Other		-4,506			-				-3,016			-			-7,522
Net cash provided by (used in) financing activities		967,157			-807,296				-649,569			-			-489,708
Effect of exchange rate on cash		-			-				-443			-			-443
Cash and cash equivalents
Net increase for the period		124,275			11,215				124,670			-			260,160
Balance, beginning of period		254,385			226,242				1,062,882			-			1,543,509
Balance, end of period	$	378,660		$	237,457			$	1,187,552		$	-		$	1,803,669
CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS AND COMPREHENSIVE INCOME INFORMATION
	Year Ended December 31, 2012
	Parent			Guarantor				Non-			Elimination			Consolidated
				Subsidiaries				Guarantor
								Subsidiaries
	(In thousands)
Net revenues	$	-		$	5,782,523			$	3,379,891		$	-1,570		$	9,160,844
Equity in subsidiaries’ earnings		-210,934			220,354				-			-9,420			-
Expenses:
Casino and hotel operations		7,623			3,615,288				2,299,941			(1,570	)		5,921,282
General and administrative		7,101			1,025,028				207,645			-			1,239,774
Corporate expense		66,285			168,863				7,859			(8,000	)		235,007
Preopening and start-up expenses		-			1,486				641			-			2,127
Property transactions, net		-			704,762				3,287			-			708,049
Depreciation and amortization		-			519,074				408,623			-			927,697
		81,009			6,034,501				2,927,996			-9,570			9,033,936
Income (loss) from unconsolidated affiliates		-			-46,443				61			-			-46,382
Operating income (loss)		-291,943			-78,067				451,956			-1,420			80,526
Interest expense, net of amounts capitalized		-1,053,692			-10,986				-51,680			-			-1,116,358
Other, net		-526,606			-137,201				-34,574			-			-698,381
Income (loss) before income taxes		-1,872,241			-226,254				365,702			-1,420			-1,734,213
Benefit for income taxes		104,550			1,892				10,859			-			117,301
Net income (loss)		-1,767,691			-224,362				376,561			-1,420			-1,616,912
Less: Net income attributable to noncontrolling interests		-			-				-150,779			-			-150,779
Net income (loss) attributable to MGM Resorts International	$	-1,767,691		$	-224,362			$	225,782		$	-1,420		$	-1,767,691
Net income (loss)	$	-1,767,691		$	-224,362			$	376,561		$	-1,420		$	-1,616,912
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustment		8,770			8,770				17,124			(17,540	)		17,124
Other		(445	)		(445	)			-			445			(445	)
Other comprehensive income (loss)		8,325			8,325				17,124			(17,095	)		16,679
Comprehensive income (loss)		-1,759,366			-216,037				393,685			-18,515			-1,600,233
Less: Comprehensive income attributable to noncontrolling interests		-			-				-159,133			-			-159,133
Comprehensive income (loss) attributable to MGM Resorts International	$	(1,759,366)		$	(216,037)			$	234,552		$	(18,515)		$	(1,759,366)
CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS INFORMATION
	Year Ended December 31, 2012
	Parent					Guarantor					Non-					Elimination		Consolidated
						Subsidiaries					Guarantor
											Subsidiaries
	(In thousands)
Cash flows from operating activities
Net cash provided by (used in) operating activities	$	-952,653				$	989,144				$	872,860				$	-	$	909,351
Cash flows from investing activities
Capital expenditures, net of construction payable		-					-332,089					-90,674					-		-422,763
Dispositions of property and equipment		-					191					235					-		426
Investments in and advances to unconsolidated affiliates		-46,800					-7,500					-					-		-54,300
Distributions from unconsolidated affiliates in excess of earnings		-					1,723					-					-		1,723
Investments in treasury securities - maturities longer than 90 days		-					-285,469					-					-		-285,469
Proceeds from treasury securities - maturities longer than 90 days		-					315,438					-					-		315,438
Other		-1,973					501					-					-		-1,472
Net cash used in investing activities		-48,773					-307,205					-90,439					-		-446,417
Cash flows from financing activities
Net borrowings under bank credit facilities - maturities of 90 days or less		1,331,500					-					447,762					-		1,779,262
Borrowings under bank credit facilities - maturities longer than 90 days		-					-					1,350,000					-		1,350,000
Repayments under bank credit facilities - maturities longer than 90 days		-1,834,128					-					-1,800,000					-		-3,634,128
Issuance of senior notes		4,100,000					-					-					-		4,100,000
Retirement of senior notes		-4,009,117					-					-					-		-4,009,117
Debt issuance costs		-119,197					-					-41,048					-		-160,245
Intercompany accounts		996,462					-685,752					-310,710					-		-
Distributions to noncontrolling interest owners		-					-					-206,806					-		-206,806
Other		-5,035					-833					-57					-		-5,925
Net cash provided by (used in) financing activities		460,485					-686,585					-560,859					-		-786,959
Effect of exchange rate on cash		-					-					1,621					-		1,621
Cash and cash equivalents
Net increase (decrease) for the period		-540,941					-4,646					223,183					-		-322,404
Balance, beginning of period		795,326					230,888					839,699					-		1,865,913
Balance, end of period	$	254,385				$	226,242				$	1,062,882				$	-	$	1,543,509
CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS AND COMPREHENSIVE INCOME INFORMATION
	Year Ended December 31, 2011
	Parent					Guarantor					Non-					Elimination		Consolidated
						Subsidiaries					Guarantor
											Subsidiaries
	(In thousands)
Net revenues	$	-				$	5,745,417				$	2,106,195				$	-2,300	$	7,849,312
Equity in subsidiaries’ earnings		3,899,017					3,761,538					-					-7,660,555		-
Expenses:
Casino and hotel operations		10,030					3,610,357					1,408,274					-2,300		5,026,361
General and administrative		7,613					1,015,923					158,969					-		1,182,505
Corporate expense		69,958					104,457					556					-		174,971
Preopening and start-up expenses		-					-316					-					-		-316
Property transactions, net		-					176,063					2,535					-		178,598
Gain on MGM China transaction		-					-					-3,496,005							-3,496,005
Depreciation and amortization		-					556,538					260,608					-		817,146
		87,601					5,463,022					-1,665,063					-2,300		3,883,260
Income (loss) from unconsolidated affiliates		-					-24,096					115,190					-		91,094
Operating income		3,811,416					4,019,837					3,886,448					-7,660,555		4,057,146
Interest expense, net of amounts capitalized		-1,023,090					-18,882					-44,860					-		-1,086,832
Other, net		26,608					-114,842					-50,449					-		-138,683
Income before income taxes		2,814,934					3,886,113					3,791,139					-7,660,555		2,831,631
Benefit (provision) for income taxes		299,703					-18					103,628					-		403,313
Net income		3,114,637					3,886,095					3,894,767					-7,660,555		3,234,944
Less: Net income attributable to noncontrolling interests		-					-					-120,307					-		-120,307
Net income attributable to MGM Resorts International	$	3,114,637				$	3,886,095				$	3,774,460				$	-7,660,555	$	3,114,637
Net income	$	3,114,637				$	3,886,095				$	3,894,767				$	-7,660,555	$	3,234,944
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustment		6,316					6,316					11,692					-12,632		11,692
Other		-37					-37					-					37		-37
Other comprehensive income (loss)		6,279					6,279					11,692					-12,595		11,655
Comprehensive income		3,120,916					3,892,374					3,906,459					-7,673,150		3,246,599
Less: Comprehensive income attributable to noncontrolling interests		-					-					-125,683					-		-125,683
Comprehensive income attributable to MGM Resorts International	$	3,120,916				$	3,892,374				$	3,780,776				$	-7,673,150	$	3,120,916
CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS INFORMATION
	Year Ended December 31, 2011
	Parent					Guarantor					Non-Guarantor					Elimination		Consolidated
						Subsidiaries					Subsidiaries
	(In thousands)
Cash flows from operating activities
Net cash provided by (used in) operating activities	$	-716,556				$	918,628				$	473,054				$	-	$	675,126
Cash flows from investing activities
Capital expenditures, net of construction payable		-					-263,469					-37,775					-		-301,244
Dispositions of property and equipment		-					147					201					-		348
Acquisition of MGM China, net of cash paid		-					-					407,046					-		407,046
Investments in and advances to unconsolidated affiliates		-92,200					-36,648					-					-		-128,848
Distributions from unconsolidated affiliates in excess of earnings		-					2,212					-					-		2,212
Investments in treasury securities - maturities longer than 90 days		-					-330,313					-					-		-330,313
Proceeds from treasury securities - maturities longer than 90 days		-					330,130					-					-		330,130
Other		-					-643					-					-		-643
Net cash provided by (used in) investing activities		-92,200					-298,584					369,472					-		-21,312
Cash flows from financing activities
Net borrowings (repayments) under bank credit facilities - maturities of 90 days or less		167,391					-					-473,271					-		-305,880
Borrowings under bank credit facilities - maturities longer than 90 days		5,826,993					-					1,732,119					-		7,559,112
Repayments under bank credit facilities - maturities longer than 90 days		-5,002,384					-					-1,350,000					-		-6,352,384
Issuance of senior notes		311,415					-					-					-		311,415
Retirement of senior notes		-356,700					-137,116					-					-		-493,816
Intercompany accounts		586,331					-529,578					-56,753					-		-
Distributions to noncontrolling interest owners		-					-					-3,768					-		-3,768
Other		-1,421					-1,263					-73					-		-2,757
Net cash provided by (used in) financing activities		1,531,625					-667,957					-151,746					-		711,922
Effect of exchange rate on cash		-					-					1,213					-		1,213
Cash and cash equivalents
Net increase (decrease) for the period		722,869					-47,913					691,993					-		1,366,949
Balance, beginning of period		72,457					278,801					147,706					-		498,964
Balance, end of period	$	795,326				$	230,888				$	839,699				$	-	$	1,865,913

Selected_Quarterly_Financial_R

Selected Quarterly Financial Results (Unaudited)	12 Months Ended
	Dec. 31, 2013
Quarterly Financial Information Disclosure [Abstract]	'
Selected Quarterly Financial Results (Unaudited)	'
	NOTE 20 — SELECTED QUARTERLY FINANCIAL RESULTS (UNAUDITED)
			Quarter
			First		Second		Third		Fourth		Total
			(In thousands, except for per share amounts)
	2013
	Net revenues		$	2,352,148	$	2,481,265	$	2,463,037	$	2,513,213	$	9,809,663
	Operating income			301,817		231,602		247,763		330,330		1,111,512
	Net income (loss)			22,578		-30,578		23,625		40,877		56,502
	Net income (loss) attributable to MGM Resorts International			6,546		-92,958		-31,859		-38,335		-156,606
	Basic income (loss) per share		$	0.01	$	-0.19	$	-0.07	$	-0.08	$	-0.32
	Diluted income (loss) per share		$	0.01	$	-0.19	$	-0.07	$	-0.08	$	-0.32
	2012
	Net revenues		$	2,287,590	$	2,323,765	$	2,254,978	$	2,294,511	$	9,160,844
	Operating income (loss)			192,606		175,375		137,401		-424,856		80,526
	Net loss			-203,307		-70,434		-154,674		-1,188,497		-1,616,912
	Net loss attributable to MGM Resorts International			-217,253		-145,452		-181,159		-1,223,827		-1,767,691
	Basic loss per share		$	-0.44	$	-0.3	$	-0.37	$	-2.5	$	-3.62
	Diluted loss per share		$	-0.44	$	-0.3	$	-0.37	$	-2.5	$	-3.62
	Because income (loss) 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 loss per share amounts for the year. The following sections list certain items affecting comparability of quarterly and year-to-date results and related per share amounts. Additional information related to these items is included elsewhere in the notes to the accompanying financial statements.
	2013 items affecting comparability are as follows:
		•		First Quarter. None;
		•		Second Quarter. The Company recorded an impairment charge related to its investment in Grand Victoria of $37 million ($0.05 per share in the quarter and full year of 2013), and an impairment charge of $45 million related to corporate buildings which are expected to be removed from service ($0.06 per share in the quarter and full year of 2013);
		•		Third Quarter. The Company recorded impairment charges of $26 million primarily related to land holdings in Jean and Sloan, Nevada ($0.03 per share in the quarter and full year); and
		•		Fourth Quarter. The Company recorded a $70 million charge for its share of CityCenter’s loss on retirement of long-term debt ($0.09 per share in the quarter and full year), and a $12 million gain for its share of a gain on retirement of long-term debt related to Silver Legacy’s early redemption of its second lien notes ($0.02 per share in the quarter and full year of 2013).
	2012 items affecting comparability are as follows:
		•		First Quarter. The Company recorded a loss on retirement of debt of $59 million ($0.08 impact per share for the quarter and full year of 2012) and its 50% share of CityCenter’s loss on retirement of debt of $4 million ($0.01 per share for the quarter and full year of 2012);
		•		Second Quarter. The Company recorded a Grand Victoria investment impairment charge of $85 million ($0.11 per share in the quarter and full year of 2012);
		•		Third Quarter. The Company recorded its 50% share of CityCenter residential inventory impairment of $18 million ($0.02 per share in the quarter and full year) and its 50% share of CityCenter Harmon demolition costs accrual of $16 million ($0.02 per share in the quarter and full year); and
		•		Fourth Quarter. The Company recorded a loss on retirement of debt of $505 million ($0.67 per share in the quarter and full year) and impairment charges related to its Borgata investment of $65 million ($0.09 per share in the quarter and full year), its Atlantic City land of $167 million ($0.20 per share in the quarter and full year), its North Las Vegas Strip land of $366 million ($0.48 per share in the quarter and full year) and its South Jersey Transportation Authority special revenue bonds of $47 million ($0.06 per share in the quarter and full year).

Schedule_II_Valuation_and_Qual

Schedule II - Valuation and Qualifying Accounts	12 Months Ended
	Dec. 31, 2013
Valuation And Qualifying Accounts [Abstract]	'
Schedule II - Valuation and Qualifying Accounts	'
	MGM RESORTS INTERNATIONAL
	SCHEDULE II — VALUATION AND QUALIFYING ACCOUNTS
	(In thousands)
		Balance at		Addition of		Provision for		Write-offs,		Balance at
		Beginning of		MGM China		Doubtful		Net of		End of Period
		Period				Accounts		Recoveries
	Allowance for doubtful accounts
	Year Ended December 31, 2013	$	97,911	$	-	$	14,969	$	(31,167)	$	81,713
	Year Ended December 31, 2012		101,207		-		57,068		(60,364)		97,911
	Year Ended December 31, 2011		93,760		40,741		39,093		(72,387)		101,207
				Balance at		Increase		Decrease		Balance at
				Beginning of						End of Period
				Period
	Deferred income tax valuation allowance
	Year Ended December 31, 2013			$	1,093,398	$	633,423	$	(4,904)	$	1,721,917
	Year Ended December 31, 2012				72,001		1,023,644		(2,247)		1,093,398
	Year Ended December 31, 2011				35,724		68,325		(32,048)		72,001

Basis_of_Presentation_and_Sign1

Basis of Presentation and Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2013
Accounting Policies [Abstract]	'
Principles of consolidation	'
	Principles of consolidation. The consolidated financial statements include the accounts of the Company and its subsidiaries. The Company’s investments in unconsolidated affiliates which are 50% or less owned are accounted for under the equity method. The Company does not have significant variable interests in variable interest entities. All intercompany balances and transactions have been eliminated in consolidation.
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 fair value of the Company’s treasury securities held by the Borgata trust was measured using Level 2 inputs. See Note 1;
		•	The Company uses Level 1 inputs for its long-term debt fair value disclosures. See Note 9;
		•	The Company used Level 3 inputs when assessing the fair value of its investment in Grand Victoria. See Note 6; and
		•	The Company used Level 3 inputs when assessing the fair value of its land in Jean and Sloan, Nevada at September 30, 2013. See Note 16.
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, construction payable, or other accrued liabilities, 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, 2013, 69% of the Company’s casino receivables were due from customers residing in foreign countries. Business or economic conditions or other significant events in these countries could affect the collectibility 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 specific review of customer accounts as well as historical collection experience and current economic and business conditions. Management believes that as of December 31, 2013, 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 market. 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. Maintenance costs are expensed as incurred.
	The Company evaluates its property and equipment and other long-lived assets for impairment based on its classification as a) held for sale or b) 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 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. See Note 16 for information on recorded impairment charges.
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, 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.
Special revenue bonds	'
	Special revenue bonds. The Company holds South Jersey Transportation Authority special revenue bonds, the original proceeds from which were used to provide funding for the Atlantic City/Brigantine Connector Project. The repayment of the remaining principal and interest for the bonds is supported by eligible investment alternative tax obligation payments made to the Casino Reinvestment Development Authority from future casino licensees on the Renaissance Pointe land owned by the Company. The Company assumed no future cash flows will be received to support the carrying value of the bonds, and recorded an other-than-temporary impairment of $47 million as of December 31, 2012, included in “Other, net.” Management believed the probability for casino development on Renaissance Pointe in the foreseeable future was remote due to the continued deterioration of the Atlantic City market and initial underperformance of a resort that opened in the market.
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 as a result of the annual impairment review for goodwill and indefinite-lived intangible assets in 2013, 2012 and 2011, except as disclosed in Note 16.
	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. The implied fair value of a reporting unit’s goodwill is compared to the carrying value of that goodwill. The implied fair value of goodwill is determined by allocating the fair value of the reporting unit to its assets and liabilities and the amount remaining, if any, is the implied fair value of goodwill. If the implied fair value of goodwill is less than its carrying value then it must be written down to its implied fair value. 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 must be recognized equal to the difference.
Revenue recognition and promotional allowances	'
	Revenue recognition and promotional allowances. Casino revenue is the aggregate net difference between gaming wins and losses, with liabilities recognized for funds deposited by customers before gaming play occurs (“casino front money”) and for chips in the customers’ possession (“outstanding chip liability”). Hotel, food and beverage, entertainment and other operating revenues are recognized as services are performed. Advance deposits on rooms and advance ticket sales are recorded as accrued liabilities until services are provided to the customer.
	Gaming revenues are recognized net of certain sales incentives, including discounts and points earned in point-loyalty programs. The retail value of accommodations, food and beverage, and other services furnished to guests without charge is included in gross revenue and then deducted as promotional allowances.
Gaming promoters	'
	Gaming promoters. A significant portion of the high-end (“VIP”) gaming volume at MGM Macau is generated through the use of gaming promoters, also known as junket operators. These operators introduce high-end gaming players to MGM Macau, assist these customers with travel arrangements, and extend gaming credit to these players. VIP gaming at MGM Macau is conducted by the use of special purpose nonnegotiable gaming chips called “rolling chips.” Gaming promoters purchase these rolling chips from MGM Macau and in turn sell these chips to their players. The rolling chips allow MGM Macau to track the amount of wagering conducted by each gaming promoters’ clients in order to determine VIP gaming play. In exchange for the gaming promoters’ services, MGM Macau compensates the gaming promoters through revenue-sharing arrangements or rolling chip turnover-based commissions. The estimated portion of the gaming promoter commissions that represent amounts passed through to VIP customers is recorded as a reduction of casino revenue, and the estimated portion retained by the gaming promoter for its compensation is recorded as casino expense.
Reimbursed expenses	'
	Reimbursed expenses. The Company recognizes costs reimbursed pursuant to management services as revenue in the period it incurs the costs. Reimbursed costs related primarily to the Company’s management of CityCenter.
Loyalty programs	'
	Loyalty programs. The Company’s primary loyalty program is “M life” and is available to patrons at substantially all of the Company’s wholly owned and operated resorts and CityCenter. Customers earn points based on their slots play which can be redeemed for FREEPLAY at any of the Company’s participating resorts. The Company records a liability based on the points earned multiplied by the redemption value, less an estimate for points not expected to be redeemed, and records a corresponding reduction in casino revenue. Customers also earn “Express Comps” based on their gaming play which can be redeemed for complimentary goods and services, including hotel rooms, food and beverage, and entertainment. The Company records a liability for the estimated costs of providing goods and services for Express Comps based on the Express Comps earned multiplied by a cost margin, less an estimate for Express Comps not expected to be redeemed and records a corresponding expense in the casino department. MGM Macau also has a loyalty program, whereby patrons earn rewards that can be redeemed for complimentary services, including hotel rooms, food and beverage, and entertainment.
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 $153 million, $139 million, and $121 million for 2013, 2012 and 2011, 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 16 for a detailed discussion of these amounts.
Income per share of common stock	'
	Income (loss) per share of common stock. The table below reconciles basic and diluted income (loss) per share of common stock. Diluted net income (loss) attributable to MGM Resorts International includes adjustments for interest on convertible debt, net of tax, and the potentially dilutive effect on the Company’s equity interest in MGM China due to shares outstanding under the MGM China Share Option Plan. Diluted weighted-average common and common equivalent shares includes adjustments for potential dilution of share-based awards outstanding under the Company’s stock compensation plans and the assumed conversion of convertible debt.
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).
Comprehensive income (loss)	'
	Comprehensive income (loss). Comprehensive income 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.
Income taxes	'
	The Company recognizes deferred income tax assets, net of applicable reserves, related to net operating loss 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.
Leases	'
	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.
Segments information	'
	The Company’s management views each of its casino resorts as an operating segment. Operating segments are aggregated based on their similar economic characteristics, types of customers, types of services and products provided, the regulatory environments in which they operate, and their management and reporting structure. The Company’s principal operating activities occur in two geographic regions: the United States and Macau S.A.R. The Company has aggregated its operations into two reportable segments based on the similar characteristics of the operating segments within the regions in which they operate: wholly owned domestic resorts and MGM China. The Company’s operations related to investments in unconsolidated affiliates, MGM Hospitality, and certain other corporate and management operations 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 non-GAAP measure defined as Adjusted EBITDA before corporate expense and stock compensation expense related to the MGM Resorts stock option plan, which are not allocated to the reportable segments. MGM China recognizes stock compensation expense related to its stock compensation plan which is included in the calculation of Adjusted EBITDA for MGM China. Adjusted EBITDA is a non-GAAP measure defined as earnings before interest and other non-operating income (expense), taxes, depreciation and amortization, preopening and start-up expenses, property transactions, net and the gain on the MGM China transaction.

Basis_of_Presentation_and_Sign2

Basis of Presentation and Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2013
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		20 to 40 years
	Land improvements		10 to 20 years
	Furniture and fixtures		3 to 20 years
	Equipment		3 to 20 years
Schedule of Estimated Cost of Providing Promotional Allowances	'
	The estimated cost of providing promotional allowances is primarily included in casino expenses as follows:
		Year Ended December 31,
		2013		2012		2011
		(In thousands)
	Rooms	$	111,842	$	109,713	$	100,968
	Food and beverage		294,555		298,111		274,776
	Entertainment, retail and other		39,606		35,643		32,705
		$	446,003	$	443,467	$	408,449
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 includes adjustments for potential dilution of share-based awards outstanding under the Company’s stock compensation plans and the assumed conversion of convertible debt.
		Year Ended December 31,
		2013		2012		2011
		(In thousands)
	Numerator:
	Net income (loss) attributable to MGM Resorts International - basic	$	(156,606)	$	(1,767,691)	$	3,114,637
	Interest on convertible debt, net of tax		-		-		38,344
	Potentially dilutive effect due to MGM China Share Option Plan		(104)		-		-
	Net income (loss) attributable to MGM Resorts International - diluted	$	(156,710)	$	(1,767,691)	$	3,152,981
	Denominator:
	Weighted-average common shares outstanding - basic		489,661		488,988		488,652
	Potential dilution from share-based awards		-		-		1,577
	Potential dilution from assumed conversion of convertible debt		-		-		70,666
	Weighted-average common and common equivalent shares - diluted		489,661		488,988		560,895
	Anti-dilutive share-based awards excluded from the calculation of diluted earnings per share		18,468		25,041		21,886
Schedule of Accumulated Other Comprehensive Income	'
	Elements of the Company’s accumulated other comprehensive income are reported in the accompanying consolidated statements of stockholders’ equity, and the cumulative balance of these elements consisted of the following:
		At December 31,
		2013		2012
		(In thousands)
	Currency translation adjustments	$	24,733	$	28,726
	Other comprehensive loss from unconsolidated affiliates		(578)		(693)
	Accumulated other comprehensive income		24,155		28,033
	Less: Currency translation adjustment attributable to noncontrolling interests		(11,652)		(13,730)
	Accumulated other comprehensive income attributable to MGM Resorts International	$	12,503	$	14,303

MGM_China_Acquisition_Tables

MGM China Acquisition (Tables) (MGM China [Member])	12 Months Ended
	Dec. 31, 2013
MGM China [Member]	'
Schedule of Consolidated Results of Financial Information	'
	MGM China results. MGM China’s results included in the accompanying consolidated financial statements beginning as of June 3, 2011 are presented below:
		Year Ended December 31,
		2013		2012		2011
		(In thousands)
	Net revenues	$	3,316,928	$	2,807,676	$	1,534,963
	Operating income		501,021		302,092		137,440
	Net income		414,039		289,631		238,419
	Net income attributable to MGM Resorts International		211,160		147,712		121,594
Schedule of Unaudited Pro Forma Consolidated Financial Information	'
	Pro forma information. The following unaudited pro forma consolidated financial information for the Company has been prepared assuming the Company’s acquisition of its controlling financial interest had occurred as of January 1, 2010 and excludes the gain recognized by the Company:
		Year Ended
		December 31,
		2011
		(In thousands,
		except per share
		data)
	Net revenues	$	8,920,343
	Operating income		577,271
	Net loss		-262,452
	Net loss attributable to MGM Resorts International		-435,099
	Loss per share of common stock attributable to MGM Resorts International:
	Basic	$	-0.89
	Diluted	$	-0.89

Accounts_Receivable_Net_Tables

Accounts Receivable, Net (Tables)	12 Months Ended
	Dec. 31, 2013
Receivables [Abstract]	'
Schedule of Accounts Receivable, Net	'
	Accounts receivable, net consisted of the following:
		At December 31,
		2013		2012
		(In thousands)
	Casino	$	309,620	$	294,312
	Hotel		156,201		147,476
	Other		104,109		99,800
			569,930		541,588
	Less: Allowance for doubtful accounts		-81,713		-97,911
		$	488,217	$	443,677

Property_and_Equipment_Net_Tab

Property and Equipment, Net (Tables)	12 Months Ended
	Dec. 31, 2013
Property Plant And Equipment [Abstract]	'
Schedule of Property and Equipment, Net	'
	Property and equipment, net consisted of the following:
		At December 31,
		2013		2012
		(In thousands)
	Land	$	6,477,489	$	6,499,492
	Buildings, building improvements and land improvements		9,264,455		9,272,556
	Furniture, fixtures and equipment		4,040,887		3,995,161
	Construction in progress		437,434		140,693
			20,220,265		19,907,902
	Less: Accumulated depreciation and amortization		-6,165,053		-5,713,250
		$	14,055,212	$	14,194,652

Investments_in_and_Advances_to1

Investments in and Advances to Unconsolidated Affiliates (Tables)	12 Months Ended
	Dec. 31, 2013
Schedule of Investments in and Advances to Unconsolidated Affiliates	'
	Investments in and advances to unconsolidated affiliates consisted of the following:
			At December 31,
			2013		2012
			(In thousands)
	CityCenter Holdings, LLC - CityCenter (50%)		$	1,172,087	$	1,220,741
	Elgin Riverboat Resort–Riverboat Casino – Grand Victoria (50%)			169,579		206,296
	Silver Legacy (50%) and Other			33,170		17,510
			$	1,374,836	$	1,444,547
Schedule of Results of Operations of Unconsolidated Affiliates	'
	The Company recorded its share of the results of operations of unconsolidated affiliates as follows:
			Year Ended December 31,
			2013		2012		2011
			(In thousands)
	Income (loss) from unconsolidated affiliates		$	43,060	$	-46,382	$	91,094
	Preopening and start-up expenses			-507		-656		-
	Non-operating items from unconsolidated affiliates			-157,338		-90,020		-119,013
			$	(114,785)	$	(137,058)	$	(27,919)
Tabular Disclosure of Differences between Venture-Level Equity and Investment Balances	'
	Differences between the Company’s venture-level equity and investment balances are as follows:
			At December 31,
			2013		2012
			(In thousands)
	Venture-level equity		$	3,369,148	$	3,156,631
	Adjustment to CityCenter equity upon contribution of net assets by MGM Resorts International (A)			-583,946		-589,338
	CityCenter capitalized interest (B)			261,526		271,602
	Completion guarantee (C)			411,944		316,281
	Advances to CityCenter, net of discount (D)			-53,296		268,927
	Other-than-temporary impairments of CityCenter investment (E)			(1,915,153)		(1,972,633)
	Fair value adjustments upon acquisition of Grand Victoria investment (F)			267,190		267,190
	Other adjustments (G)			-382,577		-274,113
			$	1,374,836	$	1,444,547
		(A)	Primarily relates to land and fixed assets.
		(B)	Relates to interest capitalized on the Company’s investment balance during development and construction stages.
		(C)	Created by contributions to CityCenter under the completion guarantee recognized as equity contributions by the joint venture split between the partners.
		(D)	During 2013, the Company converted its CityCenter sponsor notes to equity, resolving the basis difference related to such notes which were previously recognized as long-term debt by CityCenter. The remaining basis difference relates to interest on the notes capitalized by CityCenter during development.
		(E)	The impairment of the Company’s CityCenter investment includes $426 million of impairments allocated to land.
		(F)	Relates to indefinite-lived gaming license rights for Grand Victoria.
		(G)	Other adjustments include the deferred gain on assets contributed to CityCenter upon formation of the joint venture and other-than-temporary impairments of the Company’s investment in Grand Victoria and Silver Legacy. In 2012, other adjustments included a receivable from CityCenter related to condominium proceeds which was expected to be reimbursed to the Company.
Unconsolidated Affiliates [Member]	'
Summarized Balance Sheet Information	'
	Summarized balance sheet information of the unconsolidated affiliates is as follows:
			At December 31,
			2013		2012
			(In thousands)
	Current assets		$	528,297	$	619,099
	Property and other long-term assets, net			8,519,605		8,875,020
	Current liabilities			519,779		501,518
	Long-term debt and other liabilities			1,779,797		2,668,759
	Equity			6,748,326		6,323,842
Summarized Income Statement Information	'
	Summarized results of operations of the unconsolidated affiliates are as follows:
			Year Ended December 31,
			2013		2012		2011
			(In thousands)
	Net revenues		$	1,584,609	$	1,527,355	$	2,558,631
	Operating expenses			(1,572,298)		(1,731,263)		(2,472,668)
	Operating income (loss)			12,311		-203,908		85,963
	Interest expense			-247,405		-277,119		-293,578
	Other non-operating expense			-151,401		-5,329		-25,876
	Net loss		$	-386,495	$	-486,356	$	-233,491

Goodwill_and_Other_Intangible_1

Goodwill and Other Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2013
Goodwill And Intangible Assets Disclosure [Abstract]	'
Schedule of Goodwill and Other Intangible Assets	'
	Goodwill and other intangible assets consisted of the following:
		At December 31,
		2013		2012
		(In thousands)
	Goodwill:
	Mirage Resorts acquisition (2000)	$	30,451	$	30,451
	Mandalay Resort Group acquisition (2005)		40,524		40,524
	MGM China acquisition (2011)		2,826,467		2,831,872
		$	2,897,442	$	2,902,847
	Indefinite-lived intangible assets:
	Detroit development rights	$	98,098	$	98,098
	Trademarks, license rights and other		232,123		234,073
	Total indefinite-lived intangible assets		330,221		332,171
	Finite-lived intangible assets:
	MGM China gaming subconcession		4,513,631		4,515,991
	Less: Accumulated amortization		-526,152		-358,873
			3,987,479		4,157,118
	MGM Macau land concession		84,727		84,772
	Less: Accumulated amortization		-11,003		-6,737
			73,724		78,035
	MGM China customer lists		128,961		129,028
	Less: Accumulated amortization		-101,240		-75,550
			27,721		53,478
	MGM China gaming promoter relationships		180,545		180,640
	Less: Accumulated amortization		-116,335		-71,223
			64,210		109,417
	Maryland license and other intangible assets		51,827		30,226
	Less: Accumulated amortization		-23,321		-22,612
			28,506		7,614
	Total finite-lived intangible assets, net		4,181,640		4,405,662
	Total other intangible assets, net	$	4,511,861	$	4,737,833
Schedule of Estimated Future Amortization	'
	Estimated future amortization is as follows:
		(In thousands)
	Years ending December 31,
	2014	$	231,545
	2015		199,280
	2016		174,697
	2017		172,397
	2018		172,397
	Thereafter		3,231,324
		$	4,181,640

Other_Accrued_Liabilities_Tabl

Other Accrued Liabilities (Tables)	12 Months Ended
	Dec. 31, 2013
Text Block [Abstract]	'
Schedule of Other Accrued Liabilities	'
	Other accrued liabilities consisted of the following:
		At December 31,
		2013		2012
		(In thousands)
	Payroll and related	$	394,709	$	368,702
	Advance deposits and ticket sales		104,504		102,428
	Casino outstanding chip liability		409,917		260,957
	Casino front money deposits		125,180		131,187
	MGM China gaming promoter commissions		118,122		114,631
	Other gaming related accruals		137,181		141,195
	Taxes, other than income taxes		236,991		223,308
	Completion guarantee liability		97,223		27,867
	Other		146,974		147,690
		$	1,770,801	$	1,517,965

LongTerm_Debt_Tables

Long-Term Debt (Tables)	12 Months Ended
	Dec. 31, 2013
Debt Disclosure [Abstract]	'
Schedule of Long-Term Debt	'
	Long-term debt consisted of the following:
		At December 31,
		2013		2012
		(In thousands)
	Senior credit facility:
	$2,772 million ($2,800 million at December 31, 2012) term loans, net	$	2,765,041	$	2,791,284
	MGM Grand Paradise credit facility		553,242		553,531
	$462.2 million 6.75% senior notes, due 2013		-		462,226
	$150 million 7.625% senior subordinated debentures, due 2013, net		-		150,539
	$508.9 million 5.875% senior notes, due 2014, net		508,848		508,540
	$875 million 6.625% senior notes, due 2015, net		876,022		876,634
	$1,450 million 4.25% convertible senior notes, due 2015, net		1,456,153		1,460,780
	$242.9 million 6.875% senior notes, due 2016		242,900		242,900
	$732.7 million 7.5% senior notes, due 2016		732,749		732,749
	$500 million 10% senior notes, due 2016, net		496,987		496,110
	$743 million 7.625% senior notes, due 2017		743,000		743,000
	$475 million 11.375% senior notes, due 2018, net		467,451		466,117
	$850 million 8.625% senior notes, due 2019		850,000		850,000
	$500 million 5.25% senior notes, due 2020		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
	$0.6 million 7% debentures, due 2036, net		572		572
	$4.3 million 6.7% debentures, due 2096		4,265		4,265
	Other notes		-		36
		$	13,447,230	$	13,589,283
Schedule of Interest Expense, Net	'
	Interest expense, net consisted of the following:
		Year Ended December 31,
		2013		2012		2011
		(In thousands)
	Total interest incurred	$	862,417	$	1,117,327	$	1,086,865
	Interest capitalized		-5,070		-969		-33
		$	857,347	$	1,116,358	$	1,086,832
Schedule of Maturities of Long-Term Debt	'
	Maturities of long-term debt. Maturities of the Company’s long-term debt as of December 31, 2013 are as follows:
		(In thousands)
	Years ending December 31,
	2014	$	536,900
	2015		2,353,000
	2016		1,641,959
	2017		2,183,432
	2018		492,500
	Thereafter		6,249,817
			13,457,608
	Debt premiums and discounts, net		-10,378
		$	13,447,230

Income_Taxes_Tables

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2013
Income Tax Disclosure [Abstract]	'
Schedule of Consolidated Income (Loss) Before Taxes for Domestic and Foreign Operations	'
	Consolidated income (loss) before taxes for domestic and foreign operations consisted of the following:
		Year Ended December 31,
		2013			2012			2011
		(In thousands)
	Domestic operations	$	(419,316)		$	-2,048,868		$	-902,613
	Foreign operations		507,081			314,655			3,734,244
		$	87,765		$	(1,734,213)		$	2,831,631
Schedule of Income Tax Provision (Benefit) Attributable to Income (Loss) Before Income Taxes	'
	The income tax benefit (provision) attributable to income (loss) before income taxes is as follows:
		Year Ended December 31,
		2013			2012			2011
		(In thousands)
	Federal
	Current	$	3,532		$	1,636		$	-1,237
	Deferred (excluding separate components)		455,610			602,668			57,573
	Deferred—operating loss carryforward		-305,760			89,954			260,167
	Deferred—valuation allowance		-134,027			-608,015			-
	Other noncurrent		14,523			-1,587			-2,812
	Benefit for federal income taxes		33,878			84,656			313,691
	State
	Current		-1,812			-3,466			-4,482
	Deferred (excluding separate components)		1,753			24,104			9,472
	Deferred—operating loss carryforward		393			9,221			-3,357
	Deferred—valuation allowance		-4,374			-2,579			-7,787
	Deferred—enacted changes in tax laws or rates		-			-			-12,743
	Other noncurrent		880			-5,493			-1,320
	Benefit (provision) for state income taxes		-3,160			21,787			-20,217
	Foreign
	Current		-2,214			-3,217			-3,800
	Deferred (excluding separate components)		-70,440			12,471			113,639
	Deferred—operating loss carryforward		1,312			-782			-
	Deferred—valuation allowance		9,361			2,386			-
	Benefit (provision) for foreign income taxes		-61,981			10,858			109,839
		$	(31,263)		$	117,301		$	403,313
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,
		2013			2012			2011
	Federal income tax statutory rate		35.0	%		35.0	%		35.0	%
	Foreign tax credit, net of valuation allowance		-523.3			19.8			-
	Repatriation of foreign earnings		523.3			-19.2			-
	Federal valuation allowance		152.7			-35.1			-
	State income tax, net of federal benefit and valuation allowance		2.3			0.8			0.5
	Settlements with taxing authorities		-16.6			-			-
	Macau deferred tax liability re-measurement		68.1			-			-
	Foreign jurisdiction income/losses taxed at other than 35%		-199.7			7.0			-2.1
	Foreign jurisdiction tax rate change		-			-			-4.6
	MGM China acquisition gain		-			-			-43.2
	Tax credits		-9.3			0.5			-0.2
	Permanent and other items		3.1			-2			0.4
			35.6	%		6.8	%		(14.2)	%
Schedule of Major Tax-Effected Components of the Company's Net Deferred Tax Liability	'
	The major tax-effected components of the Company’s net deferred tax liability are as follows:
		At December 31,
		2013			2012
		(In thousands)
	Deferred tax assets—federal and state:
	Senior secured notes retirement	$	647		$	233,312
	Bad debt reserve		37,327			38,048
	Deferred compensation		3,680			3,080
	Net operating loss carryforward		304,077			601,226
	Accruals, reserves and other		148,438			88,097
	Investments in unconsolidated affiliates		282,258			338,945
	Stock-based compensation		31,185			36,728
	Tax credits		1,796,599			820,299
			2,604,211			2,159,735
	Less: Valuation allowance		-1,665,846			-1,032,423
			938,365			1,127,312
	Deferred tax assets—foreign:
	Bad debt reserve		333			1,477
	Net operating loss carryforward		55,834			50,075
	Accruals, reserves and other		154			1,439
	Property and equipment		11,204			10,218
			67,525			63,209
	Less: Valuation allowance		-56,071			-60,975
			11,454			2,234
	Total deferred tax assets	$	949,819		$	1,129,546
	Deferred tax liabilities—federal and state:
	Property and equipment		-2,488,287			-2,505,602
	Long-term debt		-360,666			-550,811
	Cost method investments		-23,944			-8,323
	Intangibles		-105,231			-103,094
			-2,978,128			-3,167,830
	Deferred tax liabilities—foreign:
	Intangibles		-321,116			-256,174
			-321,116			-256,174
	Total deferred tax liability	$	-3,299,244		$	-3,424,004
	Net deferred tax liability	$	(2,349,425)		$	(2,294,458)
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,
		2013			2012			2011
		(In thousands)
	Gross unrecognized tax benefits at January 1	$	153,184		$	145,799		$	134,417
	Gross increases – Prior period tax positions		6,082			6,903			9,360
	Gross decreases – Prior period tax positions		-35,508			-12,639			-13,772
	Gross increases – Current period tax positions		4,064			13,121			15,794
	Settlements with taxing authorities		-21,576			-			-
	Gross unrecognized tax benefits at December 31	$	106,246		$	153,184		$	145,799

Commitments_and_Contingencies_

Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2013
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, 2013, the Company was obligated under non-cancellable operating leases and capital leases to make future minimum lease payments as follows:
		Operating		Capital
		Leases		Leases
		(In thousands)
	2014	$	42,951	$	965
	2015		42,164		878
	2016		41,387		234
	2017		16,322		-
	2018		17,739		-
	Thereafter		1,095,046		-
	Total minimum lease payments	$	1,255,609		2,077
	Less: Amounts representing interest				-99
	Total obligations under capital leases				1,978
	Less: Amounts due within one year				-898
	Amounts due after one year			$	1,080

StockBased_Compensation_Tables

Stock-Based Compensation (Tables)	12 Months Ended
	Dec. 31, 2013
Schedule of Additional Information Related to Stock Options, SARs and RSUs	'
	The following table includes additional information related to stock options, SARs and RSUs:
		Year Ended December 31,
		2013		2012		2011
		(In thousands)
	Intrinsic value of share-based awards exercised or RSUs vested	$	28,880	$	6,451	$	4,841
	Income tax benefit from share-based awards exercised or RSUs vested		9,975		2,236		1,675
Schedule of Compensation Cost Recognized	'
	Compensation cost for both the Omnibus Plan and MGM China Plan was recognized as follows:
		Year Ended December 31,
		2013		2012		2011
		(In thousands)
	Compensation cost
	Omnibus Plan	$	27,201	$	37,588	$	41,103
	MGM China Plan		6,221		5,840		3,176
	Total compensation cost		33,422		43,428		44,279
	Less: Reimbursed costs and other		-1,090		-3,868		-4,572
	Compensation cost recognized as expense		32,332		39,560		39,707
	Less: Related tax benefit		-		-1,660		-12,712
	Compensation expense, net of tax benefit	$	32,332	$	37,900	$	26,995
Weighted Average Assumptions Utilized for SARs Grants	'
	Compensation cost for SARs granted under the Omnibus Plan is based on the fair value of each award, measured by applying the Black-Scholes model on the date of grant, using the following weighted-average assumptions:
		Year Ended December 31,
		2013		2012		2011
	Expected volatility		54 %		65 %		72 %
	Expected term		4.9 yrs.		5.0 yrs.		4.9 yrs.
	Expected dividend yield		0 %		0 %		0 %
	Risk-free interest rate		1.6 %		0.7 %		1.0 %
	Weighted-average fair value of SARs granted	$	9.44	$	5.60	$	5.29
Weighted Average Assumptions Utilized for PSUs	'
	Compensation cost for PSUs granted under the Omnibus Plan is based on the fair value of each award, measured by applying a Monte Carlo simulation method on the date of grant, using the following weighted-average assumptions:
		Year Ended December 31,
		2013		2012		2011
	Expected volatility		40 %		49 %		NA
	Expected term		3.0 yrs.		3.0 yrs.		NA
	Expected dividend yield		0 %		0 %		NA
	Risk-free interest rate		0.6 %		0.4 %		NA
	Weighted-average fair value of PSUs granted	$	21.01	$	10.03		NA
Weighted Average Assumptions Utilized for Stock Option Grants	'
	Compensation cost for stock options granted under the MGM China Plan is based on the fair value of each award, measured by applying the Black-Scholes model on the date of grant, using the following weighted-average assumptions:
		Year Ended December 31,
		2013		2012		2011
	Expected volatility		46 %		60 %		60 %
	Expected term		8.0 yrs.		8.0 yrs.		8.0 yrs.
	Expected dividend yield		1.2 %		0 %		0 %
	Risk-free interest rate		1.7 %		2.1 %		2.1 %
	Weighted-average fair value of options granted	$	1.39	$	1.13	$	1.26
Omnibus Plan [Member]	'
Summary of Stock Options and Stock Appreciation Rights Activity	'
	Stock options and stock appreciation rights (“SARs”)
		Units		Weighted		Weighted		Aggregate
		(000’s)		Average		Average		Intrinsic
				Exercise		Remaining		Value
				Price		Contractual		(000’s)
						Term
	Outstanding at January 1, 2013		22,929	$	14.44
	Granted		1,717		19.98
	Exercised		-3,027		10.65
	Forfeited or expired		-5,545		16.09
	Outstanding at December 31, 2013		16,074		15.22		3.78	$	165,484
	Vested and expected to vest at December 31, 2013		15,726		15.21		3.73	$	162,736
	Exercisable at December 31, 2013		10,393		16.37		2.85	$	106,300
Schedule of Restricted Stock Units and Performance Share Units	'
	Restricted stock units (“RSUs”) and performance share units (“PSUs”)
		RSUs				PSUs
				Weighted				Weighted		Weighted
				Average				Average		Average
		Units		Grant-Date		Units		Grant-Date		Target
		(000’s)		Fair Value		(000’s)		Fair Value		Price
	Nonvested at January 1, 2013		1,424	$	10.17		688	$	10.03	$	13.37
	Granted		566		19.38		373		21.01		23.50
	Vested		-580		10.66		-		-		-
	Forfeited		-71		10.28		-6		10.03		13.37
	Nonvested at December 31, 2013		1,339		13.85		1,055		13.91		16.95
MGM China Share Option Plan [Member]	'
Summary of Stock Option Activity	'
	A summary of activity under the MGM China Plan for the year ended December 31, 2013 is presented below:
	Stock options
		Units		Weighted		Weighted		Aggregate
		(000’s)		Average		Average		Intrinsic
				Exercise		Remaining		Value
				Price		Contractual		(000’s)
						Term
	Outstanding at January 1, 2013		19,235	$	1.98
	Granted		1,110		3.20
	Exercised		-2,704		2.00
	Forfeited or expired		-725		2.05
	Outstanding at December 31, 2013		16,916		2.06		7.49	$	37,291
	Vested and expected to vest at December 31, 2013		16,394		2.06		7.48	$	21,396
	Exercisable at December 31, 2013		6,484		1.98		7.34	$	14,769

Employee_Benefit_Plans_Tables

Employee Benefit Plans (Tables)	12 Months Ended
	Dec. 31, 2013
Compensation And Retirement Disclosure [Abstract]	'
Table Outlining Company's Participation in Pension Plan	'
	The Company’s participation in the Pension Plan is outlined in the table below.
									Expiration Date
					Pension Protection Act				of Collective
			EIN/Pension		Zone Status (1)				Bargaining
	Pension Fund		Plan Number		2012		2011		Agreements (2)
	Southern Nevada Culinary and Bartenders Pension Plan			88-6016617/001		Green		Green		11/12/14 - 5/31/18
		-1	The trustees of the Pension Plan have elected to apply the extended amortization and the special ten year asset smoothing rules under the Pension Relief Act of 2010.
		-2	The Company is party to ten collective-bargaining agreements that require contributions to the Pension Plan. The agreements between CityCenter Hotel Casino, LLC, Bellagio, Mandalay Corp., MGM Grand Hotel, LLC and the Local Joint Executive Board of Las Vegas are the most significant because more than half of the Company’s employee participants in the Pension Plan are covered by those four agreements.
Schedule of Contributions of Company's Multiemployer Pension Plans and Other Multiemployer Benefit Plans	'
	Contributions to the Company’s multiemployer pension plans and other multiemployer benefit plans were as follows:
			Year Ended December 31,
			2013		2012		2011
			(In thousands)
	Multiemployer Pension Plans
	Southern Nevada Culinary and Bartenders Pension Plan		$	37,691	$	35,556	$	31,476
	Other pension plans not individually significant			8,280		8,083		7,812
	Total multiemployer pension plans		$	45,971	$	43,639	$	39,288
	Multiemployer Benefit Plans Other Than Pensions
	UNITE HERE Health		$	167,494	$	162,453	$	160,270
	Other			15,367		14,172		13,608
	Total multiemployer benefit plans other than pensions		$	182,861	$	176,625	$	173,878

Property_Transactions_Net_Tabl

Property Transactions, Net (Tables)	12 Months Ended
	Dec. 31, 2013
Text Block [Abstract]	'
Schedule of Property Transactions, Net	'
	Property transactions, net consisted of the following:
		Year Ended December 31,
		2013		2012		2011
		(In thousands)
	Corporate buildings impairment charge	$	44,510	$	-	$	-
	Other Nevada land impairment charge		20,354		-		-
	Grand Victoria investment impairment		36,607		85,009		-
	Borgata investment impairment		-		65,000		61,962
	Las Vegas Strip land impairment		-		366,406		-
	Atlantic City land impairment		-		166,569		-
	Silver Legacy investment impairment		-		-		22,966
	Circus Circus Reno impairment		-		-		79,658
	Other property transactions, net		23,290		25,065		14,012
		$	124,761	$	708,049	$	178,598

Segment_Information_Tables

Segment Information (Tables)	12 Months Ended
	Dec. 31, 2013
Segment Reporting [Abstract]	'
Schedule of Segment Information	'
	The following tables present the Company’s segment information:
		Year Ended December 31,
		2013		2012		2011
		(In thousands)
	Net Revenues:
	Wholly owned domestic resorts	$	6,052,644	$	5,932,791	$	5,892,902
	MGM China		3,316,928		2,807,676		1,534,963
	Reportable segment net revenues		9,369,572		8,740,467		7,427,865
	Corporate and other		440,091		420,377		421,447
		$	9,809,663	$	9,160,844	$	7,849,312
	Adjusted EBITDA:
	Wholly owned domestic resorts	$	1,442,686	$	1,325,220	$	1,298,116
	MGM China		814,109		679,345		359,686
	Reportable segment Adjusted Property EBITDA		2,256,795		2,004,565		1,657,802
	Corporate and other		-157,983		-286,166		-101,233
			2,098,812		1,718,399		1,556,569
	Other operating income (expense):
	Preopening and start-up expenses		-13,314		-2,127		316
	Property transactions, net		-124,761		-708,049		-178,598
	Gain on MGM China transaction		-		-		3,496,005
	Depreciation and amortization		-849,225		-927,697		-817,146
	Operating income		1,111,512		80,526		4,057,146
	Non-operating expense:
	Interest expense, net of amounts capitalized		-857,347		-1,116,358		-1,086,832
	Non-operating items from unconsolidated affiliates		-157,338		-90,020		-119,013
	Other, net		-9,062		-608,361		-19,670
			-1,023,747		-1,814,739		-1,225,515
	Income (loss) before income taxes		87,765		-1,734,213		2,831,631
	Benefit (provision) for income taxes		-31,263		117,301		403,313
	Net income (loss)		56,502		-1,616,912		3,234,944
	Less: Net income attributable to noncontrolling interests		-213,108		-150,779		-120,307
	Net income (loss) attributable to MGM Resorts International	$	(156,606)	$	(1,767,691)	$	3,114,637
Schedule of Segment Capital Expenditures Information	'
		At December 31,
		2013		2012
		(In thousands)
	Total assets:
	Wholly owned domestic resorts	$	13,151,719	$	13,442,067
	MGM China		9,203,742		9,097,845
	Reportable segment total assets		22,355,461		22,539,912
	Corporate and other		3,776,414		3,750,535
	Eliminated in consolidation		-21,690		-5,709
		$	26,110,185	$	26,284,738
		At December 31,
		2013		2012
		(In thousands)
	Property and equipment, net:
	Wholly owned domestic resorts	$	11,787,880	$	12,145,724
	MGM China		957,769		737,920
	Reportable segment property and equipment, net		12,745,649		12,883,644
	Corporate and other		1,331,253		1,316,717
	Eliminated in consolidation		-21,690		-5,709
		$	14,055,212	$	14,194,652
		Year Ended December 31,
		2013		2012		2011
		(In thousands)
	Capital expenditures:
	Wholly owned domestic resorts	$	216,147	$	258,519	$	235,638
	MGM China		254,516		80,018		26,649
	Reportable segment capital expenditures		470,663		338,537		262,287
	Corporate and other		107,442		89,935		38,957
	Eliminated in consolidation		-15,981		-5,709		-
		$	562,124	$	422,763	$	301,244

Consolidating_Condensed_Financ1

Consolidating Condensed Financial Information (Tables)	12 Months Ended
	Dec. 31, 2013
Organization Consolidation And Presentation Of Financial Statements [Abstract]	'
Schedule of Condensed Consolidating Balance Sheet Information	'
	CONDENSED CONSOLIDATING BALANCE SHEET INFORMATION
		At December 31, 2013
		Parent			Guarantor				Non-Guarantor			Elimination			Consolidated
					Subsidiaries				Subsidiaries
		(In thousands)
	Current assets	$	494,296		$	903,537			$	1,322,170		$	-564		$	2,719,439
	Property and equipment, net		-			12,552,828				1,514,356			-11,972			14,055,212
	Investments in subsidiaries		20,017,270			4,037,168				-			-24,054,438			-
	Investments in and advances to unconsolidated affiliates		-			1,367,071				7,765			-			1,374,836
	Other non-current assets		167,552			542,259				7,250,887			-			7,960,698
		$	20,679,118		$	19,402,863			$	10,095,178		$	(24,066,974)		$	26,110,185
	Current liabilities	$	340,343		$	959,118			$	941,431		$	-25,564		$	2,215,328
	Intercompany accounts		1,446,952			-1,470,305				23,353			-			-
	Deferred income taxes		2,120,676			-				309,738			-			2,430,414
	Long-term debt		12,441,112			4,836				1,001,282			-			13,447,230
	Other long-term obligations		98,856			41,758				976			-			141,590
	Total liabilities		16,447,939			-464,593				2,276,780			-25,564			18,234,562
	MGM Resorts International stockholders’ equity		4,231,179			19,867,456				4,173,954			-24,041,410			4,231,179
	Noncontrolling interests		-			-				3,644,444			-			3,644,444
	Total stockholders’ equity		4,231,179			19,867,456				7,818,398			-24,041,410			7,875,623
		$	20,679,118		$	19,402,863			$	10,095,178		$	-24,066,974		$	26,110,185
		At December 31, 2012
		Parent			Guarantor				Non-Guarantor			Elimination			Consolidated
					Subsidiaries				Subsidiaries
		(In thousands)
	Current assets	$	438,878		$	891,826			$	1,176,844		$	-456		$	2,507,092
	Property and equipment, net		-			12,881,152				1,325,472			-11,972			14,194,652
	Investments in subsidiaries		19,785,312			4,077,228				-			-23,862,540			-
	Investments in and advances to unconsolidated affiliates		-			1,437,151				7,396			-			1,444,547
	Other non-current assets		163,372			541,634				7,433,441			-			8,138,447
		$	20,387,562		$	19,828,991			$	9,943,153		$	-23,874,968		$	26,284,738
	Current liabilities	$	272,138		$	989,864			$	672,125		$	-8,456		$	1,925,671
	Intercompany accounts		960,610			-983,288				22,678			-			-
	Deferred income taxes		2,222,823			-				251,066			-			2,473,889
	Long-term debt		12,432,581			155,413				1,001,289			-			13,589,283
	Other long-term obligations		133,862			45,303				714			-			179,879
	Total liabilities		16,022,014			207,292				1,947,872			-8,456			18,168,722
	MGM Resorts International stockholders’ equity		4,365,548			19,621,699				4,244,813			-23,866,512			4,365,548
	Noncontrolling interests		-			-				3,750,468			-			3,750,468
	Total stockholders’ equity		4,365,548			19,621,699				7,995,281			-23,866,512			8,116,016
		$	20,387,562		$	19,828,991			$	9,943,153		$	(23,874,968)		$	26,284,738
Schedule of Condensed Consolidating Statement of Operations and Comprehensive Income Information	'
	CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS AND COMPREHENSIVE INCOME INFORMATION
		Year Ended December 31, 2013
		Parent			Guarantor				Non-			Elimination			Consolidated
					Subsidiaries				Guarantor
									Subsidiaries
		(In thousands)
	Net revenues	$	-		$	5,955,001			$	3,856,728		$	-2,066		$	9,809,663
	Equity in subsidiaries’ earnings		663,605			289,384				-			-952,989			-
	Expenses:
	Casino and hotel operations		5,644			3,622,940				2,632,198			(2,066	)		6,258,716
	General and administrative		4,432			1,051,757				222,261			-			1,278,450
	Corporate expense		66,307			125,500				41,938			(17,000	)		216,745
	Preopening and start-up expenses		-			4,205				9,109			-			13,314
	Property transactions, net		-			126,773				(2,012	)		-			124,761
	Depreciation and amortization		-			522,900				326,325			-			849,225
			76,383			5,454,075				3,229,819			-19,066			8,741,211
	Income from unconsolidated affiliates		-			43,038				22			-			43,060
	Operating income (loss)		587,222			833,348				626,931			-935,989			1,111,512
	Interest expense, net of amounts capitalized		-805,933			-6,333				-45,081			-			-857,347
	Other, net		39,524			-160,721				-45,203			-			-166,400
	Income (loss) before income taxes		-179,187			666,294				536,647			-935,989			87,765
	Benefit (provision) for income taxes		22,581			11,111				-64,955			-			-31,263
	Net income (loss)		-156,606			677,405				471,692			-935,989			56,502
	Less: Net income attributable to noncontrolling interests		-			-				-213,108			-			-213,108
	Net income (loss) attributable to MGM Resorts International	$	-156,606		$	677,405			$	258,584		$	-935,989		$	-156,606
	Net income (loss)	$	-156,606		$	677,405			$	471,692		$	-935,989		$	56,502
	Other comprehensive income (loss), net of tax
	Foreign currency translation adjustment		-1,915			-1,915				-3,993			3,830			-3,993
	Other		115			115				-			(115	)		115
	Other comprehensive income (loss)		(1,800	)		(1,800	)			(3,993	)		3,715			(3,878	)
	Comprehensive income (loss)		-158,406			675,605				467,699			-932,274			52,624
	Less: Comprehensive income attributable to noncontrolling interests		-			-				-211,030			-			-211,030
	Comprehensive income (loss) attributable to MGM Resorts International	$	-158,406		$	675,605			$	256,669		$	(932,274)		$	-158,406
		Year Ended December 31, 2012
		Parent			Guarantor				Non-			Elimination			Consolidated
					Subsidiaries				Guarantor
									Subsidiaries
		(In thousands)
	Net revenues	$	-		$	5,782,523			$	3,379,891		$	-1,570		$	9,160,844
	Equity in subsidiaries’ earnings		-210,934			220,354				-			-9,420			-
	Expenses:
	Casino and hotel operations		7,623			3,615,288				2,299,941			(1,570	)		5,921,282
	General and administrative		7,101			1,025,028				207,645			-			1,239,774
	Corporate expense		66,285			168,863				7,859			(8,000	)		235,007
	Preopening and start-up expenses		-			1,486				641			-			2,127
	Property transactions, net		-			704,762				3,287			-			708,049
	Depreciation and amortization		-			519,074				408,623			-			927,697
			81,009			6,034,501				2,927,996			-9,570			9,033,936
	Income (loss) from unconsolidated affiliates		-			-46,443				61			-			-46,382
	Operating income (loss)		-291,943			-78,067				451,956			-1,420			80,526
	Interest expense, net of amounts capitalized		-1,053,692			-10,986				-51,680			-			-1,116,358
	Other, net		-526,606			-137,201				-34,574			-			-698,381
	Income (loss) before income taxes		-1,872,241			-226,254				365,702			-1,420			-1,734,213
	Benefit for income taxes		104,550			1,892				10,859			-			117,301
	Net income (loss)		-1,767,691			-224,362				376,561			-1,420			-1,616,912
	Less: Net income attributable to noncontrolling interests		-			-				-150,779			-			-150,779
	Net income (loss) attributable to MGM Resorts International	$	-1,767,691		$	-224,362			$	225,782		$	-1,420		$	-1,767,691
	Net income (loss)	$	-1,767,691		$	-224,362			$	376,561		$	-1,420		$	-1,616,912
	Other comprehensive income (loss), net of tax:
	Foreign currency translation adjustment		8,770			8,770				17,124			(17,540	)		17,124
	Other		(445	)		(445	)			-			445			(445	)
	Other comprehensive income (loss)		8,325			8,325				17,124			(17,095	)		16,679
	Comprehensive income (loss)		-1,759,366			-216,037				393,685			-18,515			-1,600,233
Less: Comprehensive income attributable to noncontrolling interests		-			-				-159,133			-			-159,133
Comprehensive income (loss) attributable to MGM Resorts International	$	(1,759,366)		$	(216,037)			$	234,552		$	(18,515)		$	(1,759,366)
	Year Ended December 31, 2011
	Parent					Guarantor					Non-					Elimination		Consolidated
						Subsidiaries					Guarantor
											Subsidiaries
	(In thousands)
Net revenues	$	-				$	5,745,417				$	2,106,195				$	-2,300	$	7,849,312
Equity in subsidiaries’ earnings		3,899,017					3,761,538					-					-7,660,555		-
Expenses:
Casino and hotel operations		10,030					3,610,357					1,408,274					-2,300		5,026,361
General and administrative		7,613					1,015,923					158,969					-		1,182,505
Corporate expense		69,958					104,457					556					-		174,971
Preopening and start-up expenses		-					-316					-					-		-316
Property transactions, net		-					176,063					2,535					-		178,598
Gain on MGM China transaction		-					-					-3,496,005							-3,496,005
Depreciation and amortization		-					556,538					260,608					-		817,146
		87,601					5,463,022					-1,665,063					-2,300		3,883,260
Income (loss) from unconsolidated affiliates		-					-24,096					115,190					-		91,094
Operating income		3,811,416					4,019,837					3,886,448					-7,660,555		4,057,146
Interest expense, net of amounts capitalized		-1,023,090					-18,882					-44,860					-		-1,086,832
Other, net		26,608					-114,842					-50,449					-		-138,683
Income before income taxes		2,814,934					3,886,113					3,791,139					-7,660,555		2,831,631
Benefit (provision) for income taxes		299,703					-18					103,628					-		403,313
Net income		3,114,637					3,886,095					3,894,767					-7,660,555		3,234,944
Less: Net income attributable to noncontrolling interests		-					-					-120,307					-		-120,307
Net income attributable to MGM Resorts International	$	3,114,637				$	3,886,095				$	3,774,460				$	-7,660,555	$	3,114,637
Net income	$	3,114,637				$	3,886,095				$	3,894,767				$	-7,660,555	$	3,234,944
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustment		6,316					6,316					11,692					-12,632		11,692
Other		-37					-37					-					37		-37
Other comprehensive income (loss)		6,279					6,279					11,692					-12,595		11,655
Comprehensive income		3,120,916					3,892,374					3,906,459					-7,673,150		3,246,599
Less: Comprehensive income attributable to noncontrolling interests		-					-					-125,683					-		-125,683
Comprehensive income attributable to MGM Resorts International	$	3,120,916				$	3,892,374				$	3,780,776				$	-7,673,150	$	3,120,916
Schedule of Condensed Consolidating Statement of Cash Flows Information	'
	CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS INFORMATION
		Year Ended December 31, 2013
		Parent			Guarantor				Non-			Elimination			Consolidated
					Subsidiaries				Guarantor
									Subsidiaries
		(In thousands)
	Cash flows from operating activities
	Net cash provided by (used in) operating activities	$	-819,282		$	1,089,341			$	1,040,389		$	-		$	1,310,448
	Cash flows from investing activities
	Capital expenditures, net of construction payable		-			-311,635				-250,489			-			-562,124
	Dispositions of property and equipment		-			11,648				6,382			-			18,030
	Investments in and advances to unconsolidated affiliates		-23,600			-5,353				-			-			-28,953
	Distributions from unconsolidated affiliates in excess of earnings		-			110				-			-			110
	Investments in treasury securities - maturities longer than 90 days		-			-219,546				-			-			-219,546
	Proceeds from treasury securities - maturities longer than 90 days		-			252,592				-			-			252,592
	Other		-			1,354				-21,600			-			-20,246
	Net cash used in investing activities		-23,600			-270,830				-265,707			-			-560,137
	Cash flows from financing activities
	Net borrowings under bank credit facilities - maturities of 90 days or less		-28,000			-				-			-			-28,000
	Borrowings under bank credit facilities - maturities longer than 90 days		2,343,000			-				450,000			-			2,793,000
	Repayments under bank credit facilities - maturities longer than 90 days		-2,343,000			-				-450,000			-			-2,793,000
	Issuance of senior notes		500,000			-				-			-			500,000
	Retirement of senior notes, including premiums paid		-462,226			-150,036				-			-			-612,262
	Debt issuance costs		-23,576			-				-			-			-23,576
	Intercompany accounts		985,465			-657,260				-328,205			-			-
	Distributions to noncontrolling interest owners		-			-				-318,348			-			-318,348
	Other		-4,506			-				-3,016			-			-7,522
	Net cash provided by (used in) financing activities		967,157			-807,296				-649,569			-			-489,708
	Effect of exchange rate on cash		-			-				-443			-			-443
	Cash and cash equivalents
	Net increase for the period		124,275			11,215				124,670			-			260,160
	Balance, beginning of period		254,385			226,242				1,062,882			-			1,543,509
	Balance, end of period	$	378,660		$	237,457			$	1,187,552		$	-		$	1,803,669
		Year Ended December 31, 2012
		Parent					Guarantor					Non-					Elimination		Consolidated
							Subsidiaries					Guarantor
												Subsidiaries
		(In thousands)
	Cash flows from operating activities
	Net cash provided by (used in) operating activities	$	-952,653				$	989,144				$	872,860				$	-	$	909,351
	Cash flows from investing activities
	Capital expenditures, net of construction payable		-					-332,089					-90,674					-		-422,763
	Dispositions of property and equipment		-					191					235					-		426
	Investments in and advances to unconsolidated affiliates		-46,800					-7,500					-					-		-54,300
	Distributions from unconsolidated affiliates in excess of earnings		-					1,723					-					-		1,723
	Investments in treasury securities - maturities longer than 90 days		-					-285,469					-					-		-285,469
	Proceeds from treasury securities - maturities longer than 90 days		-					315,438					-					-		315,438
	Other		-1,973					501					-					-		-1,472
	Net cash used in investing activities		-48,773					-307,205					-90,439					-		-446,417
	Cash flows from financing activities
	Net borrowings under bank credit facilities - maturities of 90 days or less		1,331,500					-					447,762					-		1,779,262
	Borrowings under bank credit facilities - maturities longer than 90 days		-					-					1,350,000					-		1,350,000
	Repayments under bank credit facilities - maturities longer than 90 days		-1,834,128					-					-1,800,000					-		-3,634,128
	Issuance of senior notes		4,100,000					-					-					-		4,100,000
	Retirement of senior notes		-4,009,117					-					-					-		-4,009,117
	Debt issuance costs		-119,197					-					-41,048					-		-160,245
	Intercompany accounts		996,462					-685,752					-310,710					-		-
	Distributions to noncontrolling interest owners		-					-					-206,806					-		-206,806
	Other		-5,035					-833					-57					-		-5,925
	Net cash provided by (used in) financing activities		460,485					-686,585					-560,859					-		-786,959
	Effect of exchange rate on cash		-					-					1,621					-		1,621
	Cash and cash equivalents
	Net increase (decrease) for the period		-540,941					-4,646					223,183					-		-322,404
Balance, beginning of period		795,326					230,888					839,699					-		1,865,913
Balance, end of period	$	254,385				$	226,242				$	1,062,882				$	-	$	1,543,509
	Year Ended December 31, 2011
	Parent					Guarantor					Non-Guarantor					Elimination		Consolidated
						Subsidiaries					Subsidiaries
	(In thousands)
Cash flows from operating activities
Net cash provided by (used in) operating activities	$	-716,556				$	918,628				$	473,054				$	-	$	675,126
Cash flows from investing activities
Capital expenditures, net of construction payable		-					-263,469					-37,775					-		-301,244
Dispositions of property and equipment		-					147					201					-		348
Acquisition of MGM China, net of cash paid		-					-					407,046					-		407,046
Investments in and advances to unconsolidated affiliates		-92,200					-36,648					-					-		-128,848
Distributions from unconsolidated affiliates in excess of earnings		-					2,212					-					-		2,212
Investments in treasury securities - maturities longer than 90 days		-					-330,313					-					-		-330,313
Proceeds from treasury securities - maturities longer than 90 days		-					330,130					-					-		330,130
Other		-					-643					-					-		-643
Net cash provided by (used in) investing activities		-92,200					-298,584					369,472					-		-21,312
Cash flows from financing activities
Net borrowings (repayments) under bank credit facilities - maturities of 90 days or less		167,391					-					-473,271					-		-305,880
Borrowings under bank credit facilities - maturities longer than 90 days		5,826,993					-					1,732,119					-		7,559,112
Repayments under bank credit facilities - maturities longer than 90 days		-5,002,384					-					-1,350,000					-		-6,352,384
Issuance of senior notes		311,415					-					-					-		311,415
Retirement of senior notes		-356,700					-137,116					-					-		-493,816
Intercompany accounts		586,331					-529,578					-56,753					-		-
Distributions to noncontrolling interest owners		-					-					-3,768					-		-3,768
Other		-1,421					-1,263					-73					-		-2,757
Net cash provided by (used in) financing activities		1,531,625					-667,957					-151,746					-		711,922
Effect of exchange rate on cash		-					-					1,213					-		1,213
Cash and cash equivalents
Net increase (decrease) for the period		722,869					-47,913					691,993					-		1,366,949
Balance, beginning of period		72,457					278,801					147,706					-		498,964
Balance, end of period	$	795,326				$	230,888				$	839,699				$	-	$	1,865,913

Selected_Quarterly_Financial_R1

Selected Quarterly Financial Results (Unaudited) (Tables)	12 Months Ended
	Dec. 31, 2013
Quarterly Financial Information Disclosure [Abstract]	'
Schedule of Selected Quarterly Financial Results	'
	Quarter
		First		Second		Third		Fourth		Total
		(In thousands, except for per share amounts)
	2013
	Net revenues	$	2,352,148	$	2,481,265	$	2,463,037	$	2,513,213	$	9,809,663
	Operating income		301,817		231,602		247,763		330,330		1,111,512
	Net income (loss)		22,578		-30,578		23,625		40,877		56,502
	Net income (loss) attributable to MGM Resorts International		6,546		-92,958		-31,859		-38,335		-156,606
	Basic income (loss) per share	$	0.01	$	-0.19	$	-0.07	$	-0.08	$	-0.32
	Diluted income (loss) per share	$	0.01	$	-0.19	$	-0.07	$	-0.08	$	-0.32
	2012
	Net revenues	$	2,287,590	$	2,323,765	$	2,254,978	$	2,294,511	$	9,160,844
	Operating income (loss)		192,606		175,375		137,401		-424,856		80,526
	Net loss		-203,307		-70,434		-154,674		-1,188,497		-1,616,912
	Net loss attributable to MGM Resorts International		-217,253		-145,452		-181,159		-1,223,827		-1,767,691
	Basic loss per share	$	-0.44	$	-0.3	$	-0.37	$	-2.5	$	-3.62
	Diluted loss per share	$	-0.44	$	-0.3	$	-0.37	$	-2.5	$	-3.62

Organization_Additional_Inform

Organization - Additional Information (Detail) (USD $)

12 Months Ended

12 Months Ended

12 Months Ended

12 Months Ended

12 Months Ended

12 Months Ended

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Mar. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Oct. 18, 2012

Segment

Maximum [Member]

Borgata Trust [Member]

Borgata Trust [Member]

Borgata Trust [Member]

Borgata Trust [Member]

Borgata Trust [Member]

Borgata Trust [Member]

Borgata Trust [Member]

Borgata Trust [Member]

Mississippi [Member]

Elgin Riverboat Resort-Riverboat Casino - Grand Victoria [Member]

Silver Legacy [Member]

Silver Legacy [Member]

CityCenter Holdings, LLC [Member]

CityCenter Holdings, LLC [Member]

CityCenter Holdings, LLC [Member]

CityCenter Holdings, LLC [Member]

Co-Venturer [Member]

Co-Venturer [Member]

Co-Venturer [Member]

Co-Venturer [Member]

Cotai Land Concession Contract [Member]

Maryland [Member]

Forecast [Member]

Parking Garage [Member]

The Signature at MGM Grand Las Vegas [Member]

Aria and Vdara [Member]

Aria and Vdara [Member]

Crystals [Member]

Shadow Creek Golf Course [Member]

MGM China [Member]

MGM Grand Paradise SA [Member]

U.S. Treasury Securities [Member]

U.S. Treasury Securities [Member]

U.S. Treasury Securities [Member]

U.S. Treasury Securities [Member]

U.S. Treasury Securities [Member]

U.S. Treasury Securities [Member]

Resort

Hyatt Gaming [Member]

Eldorado LLC [Member]

Boyd [Member]

Infinity World Development Corp [Member]

Casinos

Seat

Maryland [Member]

Maryland [Member]

Tower

CityCenter Holdings, LLC [Member]

Sales [Member]

CityCenter Holdings, LLC [Member]

mi

Cotai Land Concession Contract [Member]

Minimum [Member]

Minimum [Member]

Maximum [Member]

Maximum [Member]

Elgin Riverboat Resort-Riverboat Casino - Grand Victoria [Member]

Silver Legacy [Member]

Borgata Trust [Member]

CityCenter Holdings, LLC [Member]

Slot

Slot

sqft

CityCenter Holdings, LLC [Member]

acre

Room

Hotel

Casinos

sqft

ORGANIZATION

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Number of towers

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3

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Number of resorts owned and operated

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2

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Distance from Las Vegas Strip resorts (in miles)

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10

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Percentage ownership interest

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51.00%

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Area of development site (in acres)

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17.8

Land concession contract effective date

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9-Jan-13

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Number of hotel rooms

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1,600

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Number of gaming tables

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500

160

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Number of slots

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2,500

3,600

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Total estimated project budget excluding development fees eliminated in consolidation, capitalized interest and land

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$2,900,000,000

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Percentage of ownership interests

'

50.00%

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50.00%

50.00%

50.00%

50.00%

50.00%

'

50.00%

50.00%

50.00%

50.00%

50.00%

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Management fee as a percentage of revenue

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2.00%

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Management fee received, percentage of EBITDA

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5.00%

'

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Annual management fee

'

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38,000,000

32,000,000

33,000,000

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3,000,000

'

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Number of hotel rooms

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300

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Expected development and construction cost, excluding capitalized and land related costs

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1,000,000,000

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Number of theatre

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3,000

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Area of land

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35,000

'

5,000

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Number of reportable segments

2

'

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Percentage of ownership interests, cost method investment

'

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50.00%

'

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Period during which trustee is responsible for selling the trust property if the trust property is not sold during the mandated sale period

'

'

'12 months

'

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Trust assets

'

'

$102,000,000

$135,000,000

$87,000,000

$120,000,000

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Maturity period of investments

'

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'3 months

'3 months

'1 year

'1 year

'

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Basis_of_Presentation_and_Sign3

Basis of Presentation and Significant Accounting Policies - Additional Information (Detail) (USD $)	12 Months Ended			3 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2013
				South Jersey Transportation Authority special revenue bonds [Member]	South Jersey Transportation Authority special revenue bonds [Member]	Foreign Country [Member]	Maximum [Member]
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]	'	'	'	'	'	'	'
Percentage of ownership interests	'	'	'	'	'	'	50.00%
Cash and cash equivalents maturity period	'90 days or less	'	'	'	'	'	'
Percentage of casino receivables were due from customers residing in foreign countries	'	'	'	'	'	69.00%	'
Accounts receivable and credit risk	'Management believes that as of December 31, 2013, no significant concentrations of credit risk existed for which an allowance had not already been recorded	'	'	'	'	'	'
Other-than-temporary impairment of owned investment	'	'	'	$47	$47	'	'
Advertising expense	$153	$139	$121	'	'	'	'

Basis_of_Presentation_and_Sign4

Basis of Presentation and Significant Accounting Policies - Schedule of Estimated Useful Lives of Property and Equipment (Detail)	12 Months Ended
	Dec. 31, 2013
Minimum [Member] | Buildings and improvements [Member]	'
Property, Plant and Equipment [Line Items]	'
Useful life	'20 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	'20 years

Basis_of_Presentation_and_Sign5

Basis of Presentation and Significant Accounting Policies - Schedule of Estimated Cost of Providing Promotional Allowances (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Revenue Recognition [Abstract]	'	'	'
Rooms	$111,842	$109,713	$100,968
Food and beverage	294,555	298,111	274,776
Entertainment, retail and other	39,606	35,643	32,705
Estimated costs of promotional allowances included in casino expense	$446,003	$443,467	$408,449

Basis_of_Presentation_and_Sign6

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 $)	3 Months Ended								12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Numerator:	'	'	'	'	'	'	'	'	'	'	'
Net income (loss) attributable to MGM Resorts International - basic	($38,335)	($31,859)	($92,958)	$6,546	($1,223,827)	($181,159)	($145,452)	($217,253)	($156,606)	($1,767,691)	$3,114,637
Interest on convertible debt, net of tax	'	'	'	'	'	'	'	'	'	'	38,344
Potentially dilutive effect due to MGM China Share Option Plan	'	'	'	'	'	'	'	'	-104	'	'
Net income (loss) attributable to MGM Resorts International - diluted	'	'	'	'	'	'	'	'	($156,710)	($1,767,691)	$3,152,981
Denominator:	'	'	'	'	'	'	'	'	'	'	'
Weighted-average common shares outstanding - basic	'	'	'	'	'	'	'	'	489,661	488,988	488,652
Potential dilution from share-based awards	'	'	'	'	'	'	'	'	'	'	1,577
Potential dilution from assumed conversion of convertible debt	'	'	'	'	'	'	'	'	'	'	70,666
Weighted-average common and common equivalent shares - diluted	'	'	'	'	'	'	'	'	489,661	488,988	560,895
Anti-dilutive share-based awards excluded from the calculation of diluted earnings per share	'	'	'	'	'	'	'	'	18,468	25,041	21,886

Basis_of_Presentation_and_Sign7

Basis of Presentation and Significant Accounting Policies - Schedule of Accumulated Other Comprehensive Income (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Accumulated Other Comprehensive Income Loss Net Of Tax [Abstract]	'	'
Currency translation adjustments	$24,733	$28,726
Other comprehensive loss from unconsolidated affiliates	-578	-693
Accumulated other comprehensive income	24,155	28,033
Less: Currency translation adjustment attributable to noncontrolling interests	-11,652	-13,730
Accumulated other comprehensive income attributable to MGM Resorts International	$12,503	$14,303

MGM_China_Acquisition_Addition

MGM China Acquisition - Additional Information (Detail)	12 Months Ended	0 Months Ended
Share data in Millions, except Per Share data, unless otherwise specified	Dec. 31, 2011	Jun. 03, 2011	Jun. 03, 2011	Jun. 03, 2011
	USD ($)	MGM China [Member]	MGM China [Member]	MGM China [Member]
		USD ($)	MGM Grand Paradise SA [Member]	Initial public offering [Member]
			USD ($)	HKD
Business Acquisition [Line Items]	'	'	'	'
Number of shares issued	'	'	'	760
Initial public offering as a percentage of the post issuance capital stock	'	'	'	20.00%
Initial public offering issue price (in dollars per share)	'	'	'	15.34
Additional percentage of ownership acquired	'	1.00%	'	'
Cost of acquisition	'	$75,000,000	'	'
Percentage of ownership interest after acquisition	'	51.00%	'	'
Number of shares	'	59	'	'
Percentage of ownership before IPO	'	'	50.00%	'
Percentage of assets, liabilities and noncontrolling interest acquired	'	'	100.00%	'
Fair value of equity interests, assets acquired and liabilities assumed, net	'	'	7,500,000,000	'
Gain on acquisition	$3,496,005,000	'	$3,500,000,000	'

MGM_China_Acquisition_Schedule

MGM China Acquisition - Schedule of Consolidated Results of Financial Information (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
MGM China [Member]	'	'	'
Business Acquisition [Line Items]	'	'	'
Net revenues	$3,316,928	$2,807,676	$1,534,963
Operating income	501,021	302,092	137,440
Net income	414,039	289,631	238,419
MGM Resorts International [Member]	'	'	'
Business Acquisition [Line Items]	'	'	'
Net income	$211,160	$147,712	$121,594

MGM_China_Acquisition_Schedule1

MGM China Acquisition - Schedule of Unaudited Pro Forma Consolidated Financial Information (Detail) (MGM China [Member], USD $)	12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2011
MGM China [Member]	'
Business Acquisition [Line Items]	'
Net revenues	$8,920,343
Operating income	577,271
Net loss	-262,452
Net loss attributable to MGM Resorts International	($435,099)
Loss per share of common stock attributable to MGM Resorts International:	'
Basic	($0.89)
Diluted	($0.89)

Accounts_Receivable_Net_Schedu

Accounts Receivable, Net - Schedule of Accounts Receivable, Net (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Accounts receivable, gross	$569,930	$541,588
Less: Allowance for doubtful accounts	-81,713	-97,911
Accounts receivable, net	488,217	443,677
Casino [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Accounts receivable, gross	309,620	294,312
Hotel [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Accounts receivable, gross	156,201	147,476
Other [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Accounts receivable, gross	$104,109	$99,800

Property_and_Equipment_Net_Sch

Property and Equipment, Net - Schedule of Property and Equipment, Net (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Property, Plant and Equipment [Line Items]	'	'
Property and equipment, gross	$20,220,265	$19,907,902
Less: Accumulated depreciation and amortization	-6,165,053	-5,713,250
Property and equipment, net	14,055,212	14,194,652
Land [Member]	'	'
Property, Plant and Equipment [Line Items]	'	'
Property and equipment, gross	6,477,489	6,499,492
Buildings, building improvements and land improvements [Member]	'	'
Property, Plant and Equipment [Line Items]	'	'
Property and equipment, gross	9,264,455	9,272,556
Furniture, fixtures and equipment [Member]	'	'
Property, Plant and Equipment [Line Items]	'	'
Property and equipment, gross	4,040,887	3,995,161
Construction in Progress [Member]	'	'
Property, Plant and Equipment [Line Items]	'	'
Property and equipment, gross	$437,434	$140,693

Investments_in_and_Advances_to2

Investments in and Advances to Unconsolidated Affiliates - Schedule of Investments in and Advances to Unconsolidated Affiliates (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Schedule of Equity Method Investments [Line Items]	'	'
Investments in and advances to unconsolidated affiliates	$1,374,836	$1,444,547
CityCenter Holdings, LLC [Member]	'	'
Schedule of Equity Method Investments [Line Items]	'	'
Investments in and advances to unconsolidated affiliates	1,172,087	1,220,741
Elgin Riverboat Resort-Riverboat Casino [Member]	'	'
Schedule of Equity Method Investments [Line Items]	'	'
Investments in and advances to unconsolidated affiliates	169,579	206,296
Silver Legacy and Other [Member]	'	'
Schedule of Equity Method Investments [Line Items]	'	'
Investments in and advances to unconsolidated affiliates	$33,170	$17,510

Investments_in_and_Advances_to3

Investments in and Advances to Unconsolidated Affiliates - Schedule of Investments in and Advances to Unconsolidated Affiliates (Parenthetical) (Detail)	Dec. 31, 2013	Dec. 31, 2012	Mar. 31, 2012
CityCenter Holdings, LLC [Member]	'	'	'
Schedule of Equity Method Investments [Line Items]	'	'	'
Percentage of ownership interests	50.00%	50.00%	50.00%
Elgin Riverboat Resort-Riverboat Casino [Member]	'	'	'
Schedule of Equity Method Investments [Line Items]	'	'	'
Percentage of ownership interests	50.00%	50.00%	'
Silver Legacy [Member]	'	'	'
Schedule of Equity Method Investments [Line Items]	'	'	'
Percentage of ownership interests	50.00%	50.00%	'

Investments_in_and_Advances_to4

Investments in and Advances to Unconsolidated Affiliates - Schedule of Results of Operations of Unconsolidated Affiliates (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Equity Method Investments And Joint Ventures [Abstract]	'	'	'
Income (loss) from unconsolidated affiliates	$43,060	($46,382)	$91,094
Preopening and start-up expenses	-507	-656	'
Non-operating items from unconsolidated affiliates	-157,338	-90,020	-119,013
Income (loss) from unconsolidated affiliates	($114,785)	($137,058)	($27,919)

Investments_in_and_Advances_to5

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

3 Months Ended

12 Months Ended

3 Months Ended

12 Months Ended

3 Months Ended

12 Months Ended

3 Months Ended

12 Months Ended

1 Months Ended

3 Months Ended

1 Months Ended

Dec. 31, 2012

Mar. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Mar. 31, 2012

Sep. 30, 2012

Dec. 31, 2012

Sep. 30, 2012

Dec. 31, 2012

Dec. 31, 2011

Oct. 31, 2013

Oct. 31, 2013

Mar. 31, 2011

Oct. 31, 2013

Oct. 31, 2013

Oct. 31, 2013

Oct. 31, 2013

Maximum [Member]

CityCenter Holdings, LLC [Member]

CityCenter Holdings, LLC [Member]

CityCenter Holdings, LLC [Member]

CityCenter Holdings, LLC [Member]

CityCenter Holdings, LLC [Member]

CityCenter Holdings, LLC [Member]

CityCenter Holdings, LLC [Member]

CityCenter Holdings, LLC [Member]

CityCenter Holdings, LLC [Member]

CityCenter Holdings, LLC [Member]

CityCenter Holdings, LLC [Member]

CityCenter Holdings, LLC [Member]

CityCenter Holdings, LLC [Member]

CityCenter Holdings, LLC [Member]

CityCenter Holdings, LLC [Member]

CityCenter Holdings, LLC [Member]

Harmon [Member]

Harmon [Member]

Residential Inventory [Member]

Residential Inventory [Member]

Residential Inventory [Member]

Term Loan B Facility [Member]

Senior Secured First Lien Notes [Member]

Senior Secured Credit Facility [Member]

Senior Secured Credit Facility [Member]

Revolving Facility [Member]

Minimum [Member]

Maximum [Member]

Senior Secured Second Lien PIK Toggle Notes [Member]

Senior Secured Second Lien PIK Toggle Notes [Member]

Schedule of Equity Method Investments [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Credit facility amount

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$1,700,000,000

'

'

$1,775,000,000

$75,000,000

'

'

Credit facility, maturity date

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

16-Oct-20

'

'

'

16-Oct-18

'

'

Percentage of principal amount issued

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

99.00%

'

'

'

'

'

'

Interest rate margin (as a percent)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

4.00%

'

'

'

'

'

'

Interest rate floor (as a percent)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1.00%

'

'

'

'

'

'

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

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

7.63%

'

'

'

10.75%

11.50%

Loss on retirement of long-term debt

505,000,000

59,000,000

3,801,000

563,292,000

-717,000

'

70,000,000

'

'

'

'

'

'

'

'

'

'

24,000,000

'

'

'

'

Debt restructuring, sponsor notes carrying value

'

'

'

'

'

'

'

738,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Real estate impairment charges

'

'

20,354,000

'

'

'

'

'

'

'

'

'

'

36,000,000

53,000,000

'

'

'

'

'

'

'

Percentage of ownership interests

'

'

'

'

'

50.00%

50.00%

50.00%

50.00%

50.00%

50.00%

50.00%

50.00%

50.00%

50.00%

'

'

'

'

'

'

'

Real estate impairment charges of unconsolidated affiliates

'

'

'

'

'

'

'

'

'

'

'

'

18,000,000

18,000,000

26,000,000

'

'

'

'

'

'

'

Demolition cost

'

'

'

'

'

'

'

'

'

'

'

32,000,000

'

'

'

'

'

'

'

'

'

'

Demolition cost, proportionate share from equity method investee

'

'

'

'

'

'

'

'

'

'

$16,000,000

$16,000,000

'

'

'

'

'

'

'

'

'

'

Investments_in_and_Advances_to6

Investments in and Advances to Unconsolidated Affiliates - Additional Information 1 (Detail) (USD $)

1 Months Ended

12 Months Ended

1 Months Ended

0 Months Ended

3 Months Ended

12 Months Ended

0 Months Ended

12 Months Ended

1 Months Ended

1 Months Ended

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Jun. 03, 2011

Jun. 30, 2013

Jun. 30, 2012

Jun. 30, 2013

Jun. 30, 2012

Dec. 31, 2013

Dec. 31, 2012

Jun. 30, 2013

Jun. 30, 2012

Jun. 30, 2013

Jun. 30, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Nov. 30, 2012

Dec. 31, 2013

Nov. 30, 2012

MGM Grand Paradise Limited [Member]

Grand Victoria [Member]

Grand Victoria [Member]

Grand Victoria [Member]

Grand Victoria [Member]

Grand Victoria [Member]

Grand Victoria [Member]

Grand Victoria [Member]

Grand Victoria [Member]

Grand Victoria [Member]

Grand Victoria [Member]

Silver Legacy [Member]

Silver Legacy [Member]

Silver Legacy [Member]

Silver Legacy [Member]

Silver Legacy [Member]

Silver Legacy [Member]

Silver Legacy [Member]

Level 3 [Member]

Level 3 [Member]

Discounted Cash Flow Analysis [Member]

Discounted Cash Flow Analysis [Member]

Senior Credit Facility [Member]

Senior Credit Facility [Member]

Senior Notes Due March 2012 [Member]

Subordinated Sponsor Notes [Member]

Level 3 [Member]

Level 3 [Member]

Schedule of Equity Method Investments [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Long-term growth rate (as a percent)

'

'

'

'

'

'

'

'

'

'

'

'

'

2.00%

2.00%

'

'

'

'

'

'

'

Discount rate (as a percent)

'

'

'

'

'

'

'

'

'

'

'

'

'

11.00%

10.50%

'

'

'

'

'

'

'

Investment impairment

'

'

'

'

'

$37,000,000

$85,000,000

$37,000,000

$85,000,000

$36,607,000

$85,009,000

'

'

'

'

$22,966,000

'

'

'

'

'

'

Estimated fair value

'

'

'

'

'

'

'

'

'

'

'

170,000,000

205,000,000

'

'

'

'

'

'

'

'

'

Percentage of ownership interests

'

'

'

'

'

50.00%

50.00%

50.00%

50.00%

'

'

'

'

'

'

'

50.00%

50.00%

'

'

'

'

Outstanding senior notes

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

143,000,000

'

Credit facility amount

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

70,000,000

'

'

Investment by each partner as part of reorganization

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

7,500,000

Gain on redeemed outstanding second lien notes

12,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

24,000,000

'

'

'

Distributions from unconsolidated affiliates

'

$16,928,000

$21,277,000

$60,801,000

$31,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Investments_in_and_Advances_to7

Investments in and Advances to Unconsolidated Affiliates - Summarized Balance Sheet Information (Detail) (Unconsolidated Affiliates [Member], USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Unconsolidated Affiliates [Member]	'	'
Schedule of Equity Method Investments [Line Items]	'	'
Current assets	$528,297	$619,099
Property and other long-term assets, net	8,519,605	8,875,020
Current liabilities	519,779	501,518
Long-term debt and other liabilities	1,779,797	2,668,759
Equity	$6,748,326	$6,323,842

Investments_in_and_Advances_to8

Investments in and Advances to Unconsolidated Affiliates - Summarized Income Statement Information (Detail) (Unconsolidated Affiliates [Member], USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Unconsolidated Affiliates [Member]	'	'	'
Schedule of Equity Method Investments [Line Items]	'	'	'
Net revenues	$1,584,609	$1,527,355	$2,558,631
Operating expenses	-1,572,298	-1,731,263	-2,472,668
Operating income (loss)	12,311	-203,908	85,963
Interest expense	-247,405	-277,119	-293,578
Other non-operating expense	-151,401	-5,329	-25,876
Net loss	($386,495)	($486,356)	($233,491)

Investments_in_and_Advances_to9

Investments in and Advances to Unconsolidated Affiliates - Tabular Disclosure of Differences between Venture-Level Equity and Investment Balances (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Equity Method Investment Difference Between Carrying Amount And Underlying Equity [Abstract]	'	'
Venture-level equity	$3,369,148	$3,156,631
Adjustment to CityCenter equity upon contribution of net assets by MGM Resorts International	-583,946	-589,338
CityCenter capitalized interest	261,526	271,602
Completion guarantee	411,944	316,281
Advances to CityCenter, net of discount	-53,296	268,927
Other-than-temporary impairments of CityCenter investment	-1,915,153	-1,972,633
Fair value adjustments upon acquisition of Grand Victoria investment	267,190	267,190
Other adjustments	-382,577	-274,113
Investment balance	$1,374,836	$1,444,547

Recovered_Sheet1

Investments in and Advances to Unconsolidated Affiliates - Tabular Disclosure of Differences between Venture-Level Equity and Investment Balances (Parenthetical) (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Schedule of Equity Method Investments [Line Items]	'	'
Other-than-temporary impairments of CityCenter investment	($1,915,153)	($1,972,633)
Land [Member] | CityCenter Holdings, LLC [Member]	'	'
Schedule of Equity Method Investments [Line Items]	'	'
Other-than-temporary impairments of CityCenter investment	$426,000	'

Goodwill_and_Other_Intangible_2

Goodwill and Other Intangible Assets - Schedule of Goodwill and Other Intangible Assets (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Goodwill And Intangible Assets [Line Items]	'	'
Goodwill	$2,897,442	$2,902,847
Total indefinite-lived intangible assets	330,221	332,171
Total finite-lived intangible assets	4,181,640	4,405,662
Total other intangible assets, net	4,511,861	4,737,833
MGM China [Member]	'	'
Goodwill And Intangible Assets [Line Items]	'	'
Goodwill	2,826,467	2,831,872
Mirage Resorts acquisition (2000) [Member]	'	'
Goodwill And Intangible Assets [Line Items]	'	'
Goodwill	30,451	30,451
Mandalay Resort Group acquisition (2005) [Member]	'	'
Goodwill And Intangible Assets [Line Items]	'	'
Goodwill	40,524	40,524
Detroit development rights [Member]	'	'
Goodwill And Intangible Assets [Line Items]	'	'
Total indefinite-lived intangible assets	98,098	98,098
Trademarks, license rights and other [Member]	'	'
Goodwill And Intangible Assets [Line Items]	'	'
Total indefinite-lived intangible assets	232,123	234,073
Trademarks, license rights and other [Member] | Mandalay Resort Group acquisition (2005) [Member]	'	'
Goodwill And Intangible Assets [Line Items]	'	'
Total indefinite-lived intangible assets	213,000	'
MGM China gaming subconcession [Member]	'	'
Goodwill And Intangible Assets [Line Items]	'	'
Finite-lived intangible assets, gross	4,513,631	4,515,991
Accumulated amortization	-526,152	-358,873
Total finite-lived intangible assets	3,987,479	4,157,118
MGM Macau land concession [Member]	'	'
Goodwill And Intangible Assets [Line Items]	'	'
Finite-lived intangible assets, gross	84,727	84,772
Accumulated amortization	-11,003	-6,737
Total finite-lived intangible assets	73,724	78,035
MGM China customer lists [Member]	'	'
Goodwill And Intangible Assets [Line Items]	'	'
Finite-lived intangible assets, gross	128,961	129,028
Accumulated amortization	-101,240	-75,550
Total finite-lived intangible assets	27,721	53,478
MGM China gaming promoter relationships [Member]	'	'
Goodwill And Intangible Assets [Line Items]	'	'
Finite-lived intangible assets, gross	180,545	180,640
Accumulated amortization	-116,335	-71,223
Total finite-lived intangible assets	64,210	109,417
Maryland license and other intangible assets [Member]	'	'
Goodwill And Intangible Assets [Line Items]	'	'
Finite-lived intangible assets, gross	51,827	30,226
Accumulated amortization	-23,321	-22,612
Total finite-lived intangible assets	$28,506	$7,614

Goodwill_and_Other_Intangible_3

Goodwill and Other Intangible Assets - Additional Information (Detail) (USD $)	12 Months Ended			1 Months Ended	12 Months Ended					0 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Jan. 31, 2013	Dec. 31, 2013	Dec. 31, 2013	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Apr. 20, 2011
				MGM China gaming subconcession [Member]	MGM China customer lists [Member]	MGM China gaming promoter relationships [Member]	Trademarks, license rights and other [Member]	Trademarks, license rights and other [Member]	Mandalay Resort Group acquisition (2005) [Member]	MGM Grand Paradise SA [Member]
					MGM China [Member]	MGM China [Member]			Trademarks, license rights and other [Member]	MGM China gaming subconcession [Member]
Goodwill [Line Items]	'	'	'	'	'	'	'	'	'	'
Indefinite-lived intangible assets	$330,221,000	$332,171,000	'	'	'	'	$232,123,000	$234,073,000	$213,000,000	'
Period for the right to operate casino games of chance and other casino games	'	'	'	'	'	'	'	'	'	'15 years
Estimated remaining useful life of gaming subconcession	'	'	'	'25 years	'	'	'	'	'	'
Estimated useful life of intangible assets	'	'	'	'	'5 years	'4 years	'	'	'	'
Amortization expense related to intangible assets	$243,000,000	$321,000,000	$181,000,000	'	'	'	'	'	'	'

Goodwill_and_Other_Intangible_4

Goodwill and Other Intangible Assets - Schedule of Estimated Future Amortization (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Goodwill And Intangible Assets Disclosure [Abstract]	'	'
2014	$231,545	'
2015	199,280	'
2016	174,697	'
2017	172,397	'
2018	172,397	'
Thereafter	3,231,324	'
Total finite-lived intangible assets	$4,181,640	$4,405,662

Other_Accrued_Liabilities_Sche

Other Accrued Liabilities - Schedule of Other Accrued Liabilities (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Other Liabilities Disclosure [Abstract]	'	'
Payroll and related	$394,709	$368,702
Advance deposits and ticket sales	104,504	102,428
Casino outstanding chip liability	409,917	260,957
Casino front money deposits	125,180	131,187
MGM China gaming promoter commissions	118,122	114,631
Other gaming related accruals	137,181	141,195
Taxes, other than income taxes	236,991	223,308
Completion guarantee liability	97,223	27,867
Other	146,974	147,690
Other accrued liabilities	$1,770,801	$1,517,965

LongTerm_Debt_Schedule_of_Long

Long-Term Debt - Schedule of Long-Term Debt (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Debt Instrument [Line Items]	'	'
Long-term debt	$13,447,230	$13,589,283
Senior credit facility term loans, net [Member]	'	'
Debt Instrument [Line Items]	'	'
Long-term debt	2,765,041	2,791,284
MGM Grand Paradise credit facility [Member]	'	'
Debt Instrument [Line Items]	'	'
Long-term debt	553,242	553,531
6.75% senior notes, due 2013 [Member]	'	'
Debt Instrument [Line Items]	'	'
Long-term debt	'	462,226
7.625% senior subordinated debentures, due 2013, net [Member]	'	'
Debt Instrument [Line Items]	'	'
Long-term debt	'	150,539
5.875% senior notes, due 2014, net [Member]	'	'
Debt Instrument [Line Items]	'	'
Long-term debt	508,848	508,540
6.625% senior notes, due 2015, net [Member]	'	'
Debt Instrument [Line Items]	'	'
Long-term debt	876,022	876,634
4.25% convertible senior notes, due 2015, net [Member]	'	'
Debt Instrument [Line Items]	'	'
Long-term debt	1,456,153	1,460,780
6.875% senior notes, due 2016 [Member]	'	'
Debt Instrument [Line Items]	'	'
Long-term debt	242,900	242,900
7.5% senior notes, due 2016 [Member]	'	'
Debt Instrument [Line Items]	'	'
Long-term debt	732,749	732,749
10% senior notes, due 2016, net [Member]	'	'
Debt Instrument [Line Items]	'	'
Long-term debt	496,987	496,110
7.625% senior notes, due 2017 [Member]	'	'
Debt Instrument [Line Items]	'	'
Long-term debt	743,000	743,000
11.375% senior notes, due 2018, net [Member]	'	'
Debt Instrument [Line Items]	'	'
Long-term debt	467,451	466,117
8.625% senior notes, due 2019 [Member]	'	'
Debt Instrument [Line Items]	'	'
Long-term debt	850,000	850,000
Represents senior notes with an interest rate of 5.25% due in 2020 [Member]	'	'
Debt Instrument [Line Items]	'	'
Long-term debt	500,000	'
6.75% senior notes, due 2020 [Member]	'	'
Debt Instrument [Line Items]	'	'
Long-term debt	1,000,000	1,000,000
6.625% senior notes, due 2021 [Member]	'	'
Debt Instrument [Line Items]	'	'
Long-term debt	1,250,000	1,250,000
7.75% senior notes due 2022 [Member]	'	'
Debt Instrument [Line Items]	'	'
Long-term debt	1,000,000	1,000,000
7% debentures, due 2036, net [Member]	'	'
Debt Instrument [Line Items]	'	'
Long-term debt	572	572
6.7% debentures, due 2096 [Member]	'	'
Debt Instrument [Line Items]	'	'
Long-term debt	4,265	4,265
Other notes [Member]	'	'
Debt Instrument [Line Items]	'	'
Long-term debt	'	$36

LongTerm_Debt_Schedule_of_Long1

Long-Term Debt - Schedule of Long-Term Debt (Parenthetical) (Detail) (USD $)	1 Months Ended		12 Months Ended
In Millions, unless otherwise specified	Jun. 30, 2011	Apr. 30, 2010	Dec. 31, 2013	Dec. 31, 2012
Senior credit facility term loans, net [Member]	'	'	'	'
Debt Instrument [Line Items]	'	'	'	'
Long-term debt, principal amount	'	'	$2,772	$2,800
6.75% senior notes, due 2013 [Member]	'	'	'	'
Debt Instrument [Line Items]	'	'	'	'
Long-term debt, principal amount	'	'	462.2	462.2
Long-term debt, interest rate (as a percent)	'	'	6.75%	6.75%
Long-term debt, maturity year	'	'	'2013	'2013
7.625% senior subordinated debentures, due 2013, net [Member]	'	'	'	'
Debt Instrument [Line Items]	'	'	'	'
Long-term debt, principal amount	'	'	150	150
Long-term debt, interest rate (as a percent)	'	'	7.63%	7.63%
Long-term debt, maturity year	'	'	'2013	'2013
5.875% senior notes, due 2014, net [Member]	'	'	'	'
Debt Instrument [Line Items]	'	'	'	'
Long-term debt, principal amount	'	'	508.9	508.9
Long-term debt, interest rate (as a percent)	'	'	5.88%	5.88%
Long-term debt, maturity year	'	'	'2014	'2014
6.625% senior notes, due 2015, net [Member]	'	'	'	'
Debt Instrument [Line Items]	'	'	'	'
Long-term debt, principal amount	'	'	875	875
Long-term debt, interest rate (as a percent)	'	'	6.63%	6.63%
Long-term debt, maturity year	'	'	'2015	'2015
4.25% convertible senior notes, due 2015, net [Member]	'	'	'	'
Debt Instrument [Line Items]	'	'	'	'
Long-term debt, principal amount	'	'	1,450	1,450
Long-term debt, interest rate (as a percent)	4.25%	4.25%	4.25%	4.25%
Long-term debt, maturity year	'2015	'2015	'2015	'2015
6.875% senior notes, due 2016 [Member]	'	'	'	'
Debt Instrument [Line Items]	'	'	'	'
Long-term debt, principal amount	'	'	242.9	242.9
Long-term debt, interest rate (as a percent)	'	'	6.88%	6.88%
Long-term debt, maturity year	'	'	'2016	'2016
7.5% senior notes, due 2016 [Member]	'	'	'	'
Debt Instrument [Line Items]	'	'	'	'
Long-term debt, principal amount	'	'	732.7	732.7
Long-term debt, interest rate (as a percent)	'	'	7.50%	7.50%
Long-term debt, maturity year	'	'	'2016	'2016
10% senior notes, due 2016, net [Member]	'	'	'	'
Debt Instrument [Line Items]	'	'	'	'
Long-term debt, principal amount	'	'	500	500
Long-term debt, interest rate (as a percent)	'	'	10.00%	10.00%
Long-term debt, maturity year	'	'	'2016	'2016
7.625% senior notes, due 2017 [Member]	'	'	'	'
Debt Instrument [Line Items]	'	'	'	'
Long-term debt, principal amount	'	'	743	743
Long-term debt, interest rate (as a percent)	'	'	7.63%	7.63%
Long-term debt, maturity year	'	'	'2017	'2017
11.375% senior notes, due 2018, net [Member]	'	'	'	'
Debt Instrument [Line Items]	'	'	'	'
Long-term debt, principal amount	'	'	475	475
Long-term debt, interest rate (as a percent)	'	'	11.38%	11.38%
Long-term debt, maturity year	'	'	'2018	'2018
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)	'	'	8.63%	8.63%
Long-term debt, maturity year	'	'	'2019	'2019
Represents senior notes with an interest rate of 5.25% due in 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	'	'	'2020	'2020
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	'	'	'2020	'2020
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)	'	'	6.63%	6.63%
Long-term debt, maturity year	'	'	'2021	'2021
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	'	'	'2022	'2022
7% debentures, due 2036, net [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	'	'	'2036	'2036
6.7% debentures, due 2096 [Member]	'	'	'	'
Debt Instrument [Line Items]	'	'	'	'
Long-term debt, principal amount	'	'	$4.30	$4.30
Long-term debt, interest rate (as a percent)	'	'	6.70%	6.70%
Long-term debt, maturity year	'	'	'2096	'2096

LongTerm_Debt_Schedule_of_Inte

Long-Term Debt - Schedule of Interest Expense, Net (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Debt Disclosure [Abstract]	'	'	'
Total interest incurred	$862,417	$1,117,327	$1,086,865
Interest capitalized	-5,070	-969	-33
Interest expense, net	$857,347	$1,116,358	$1,086,832

LongTerm_Debt_Additional_Infor

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

3 Months Ended

12 Months Ended

12 Months Ended

12 Months Ended

12 Months Ended

12 Months Ended

1 Months Ended

12 Months Ended

1 Months Ended

12 Months Ended

Dec. 31, 2012

Mar. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

31-May-13

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2012

Dec. 31, 2012

Dec. 31, 2012

Dec. 31, 2012

Dec. 31, 2012

Jun. 30, 2011

Apr. 30, 2010

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Debt Covenant Terms December Thirty One Two Thousand And Fourteen [Member]

Minimum [Member]

Minimum [Member]

Minimum [Member]

Senior credit facility [Member]

Senior credit facility [Member]

Senior credit facility [Member]

Senior credit facility [Member]

Senior credit facility [Member]

Senior credit facility [Member]

MGM China credit facility, Term loans [Member]

MGM China credit facility, revolving credit facility [Member]

MGM China credit facility, revolving credit facility [Member]

MGM China credit facility, revolving credit facility [Member]

MGM China credit facility, revolving credit facility [Member]

Amended and restated MGM China credit facility [Member]

Amended and restated MGM China credit facility [Member]

Amended and restated MGM China credit facility [Member]

Amended and restated MGM China credit facility [Member]

Amended and restated MGM China credit facility [Member]

Amended and restated MGM China credit facility [Member]

Senior credit facility revolving loans [Member]

Senior credit facility revolving loans [Member]

Senior credit facility term loan B [Member]

Senior credit facility term loan B [Member]

Senior credit facility term loan B [Member]

Senior credit facility term loan A [Member]

Senior credit facility term loan A [Member]

6.75% senior notes, due 2013 [Member]

6.75% senior notes, due 2013 [Member]

7.625% senior subordinated debentures, due 2013, net [Member]

7.625% senior subordinated debentures, due 2013, net [Member]

6.75% Senior Notes [Member]

13% senior secured notes, due 2013, net [Member]

10.375% senior secured notes, due 2014, net [Member]

11.125% senior secured notes, due 2017, net [Member]

9% senior secured notes, due 2020 [Member]

4.25% convertible senior notes, due 2015, net [Member]

4.25% convertible senior notes, due 2015, net [Member]

4.25% convertible senior notes, due 2015, net [Member]

4.25% convertible senior notes, due 2015, net [Member]

4.25% convertible senior notes, due 2015, net [Member]

Senior credit facility term loans, net [Member]

5.25% senior notes, due 2020 [Member]

8.625% senior notes, due 2019 [Member]

8.625% senior notes, due 2019 [Member]

7.75% senior notes due 2022 [Member]

7.75% senior notes due 2022 [Member]

6.75% senior notes, due 2020 [Member]

6.75% senior notes, due 2020 [Member]

6.625% senior notes, due 2021 [Member]

6.625% senior notes, due 2021 [Member]

Senior Secured Notes [Member]

Senior Secured Notes [Member]

Debt Covenant Terms March Thirty One Two Thousand And Fourteen [Member]

Debt Covenant Terms June Thirty Two Thousand And Fourteen [Member]

Debt Covenant Terms September Thirty Two Thousand And Fourteen [Member]

Collateralized land and assets of MGM Grand Detroit [Member]

Maximum [Member]

Maximum [Member]

Minimum [Member]

MGM China [Member]

MGM China [Member]

HIBOR [Member]

HIBOR [Member]

HIBOR [Member]

Maximum [Member]

Maximum [Member]

Minimum [Member]

HIBOR [Member]

HIBOR [Member]

HIBOR [Member]

LIBOR [Member]

LIBOR [Member]

LIBOR [Member]

Tender offers [Member]

Tender offers [Member]

MGM Grand Detroit, LLC [Member]

Collateralized land and assets of MGM Grand Las Vegas, Bellagio and The Mirage [Member]

Debt Covenant Terms 2013 [Member]

MGM China [Member]

Maximum [Member]

Minimum [Member]

Debt Covenant Terms Prior To First Anniversary Of MGM Cotai Opening [Member]

Debt Covenant Terms Subsequent To First Anniversary Of MGM Cotai Opening [Member]

MGM China [Member]

MGM China [Member]

Maximum [Member]

Minimum [Member]

MGM China [Member]

MGM China [Member]

MGM China [Member]

MGM China [Member]

MGM China [Member]

MGM China [Member]

Debt Instrument [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Credit facility amount

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$550,000,000

'

$1,450,000,000

'

'

'

'

'

'

'

'

$1,200,000,000

'

'

$1,730,000,000

'

$1,040,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Variable interest rate base

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'HIBOR

'

'

'

'

'

'HIBOR

'

'

'

'LIBOR

'

'

'LIBOR

'

'LIBOR

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Interest rate margin (as a percent)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1.75%

2.50%

1.75%

'

'

'

1.75%

2.50%

1.75%

'

2.75%

'

'

2.50%

'

2.75%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Interest rate floor (as a percent)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

(Gain) loss on retirement of long-term debt

-505,000,000

-59,000,000

-3,801,000

-563,292,000

717,000

'

'

'

'

'

107,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

4,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

457,000,000

Long-term debt, maturity date

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

30-Oct-17

'

'

'

'

'

'

'

'

'

20-Dec-17

'

'

20-Dec-19

'

20-Dec-17

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Quarterly amortization payments of original principal balance (as percent)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0.25%

'

0.25%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Repayments

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

462,000,000

'

150,000,000

'

535,000,000

'

'

'

'

'

'

'

'

'

28,000,000

'

'

'

'

'

'

'

'

'

'

'

Available borrowing capacity

'

'

'

'

'

'

'

'

'

1,200,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Interest rate at the end of the period (as a percent)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

3.50%

'

2.92%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Secured obligations

'

'

'

'

'

'

'

'

'

'

'

450,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt instrument, collateral amount

'

'

'

'

'

'

'

'

'

'

'

'

3,350,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Trailing annual earnings before interest, taxes, depreciation and amortization (EBITDA)

'

'

'

'

'

1,200,000,000

1,100,000,000

1,100,000,000

1,200,000,000

1,310,000,000

'

'

'

'

1,050,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Annual capital expenditures

'

'

'

'

'

'

'

'

'

'

'

'

'

500,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Consolidated leverage ratio

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

4.5

4

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Consolidated interest coverage ratio

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2.5

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Long-term debt interest rate

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

6.75%

6.75%

7.63%

7.63%

6.75%

13.00%

10.38%

11.13%

9.00%

4.25%

4.25%

4.25%

4.25%

'

'

5.25%

8.63%

8.63%

7.75%

7.75%

6.75%

6.75%

6.63%

6.63%

'

'

Long-term debt, maturity year

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'2013

'2013

'2013

'2013

'2012

'2013

'2014

'2017

'2020

'2015

'2015

'2015

'2015

'

'

'2020

'2019

'2019

'2022

'2022

'2020

'2020

'2021

'2021

'

'

Borrowings

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

300,000,000

1,150,000,000

'

'

'

'

500,000,000

'

850,000,000

'

1,000,000,000

'

1,000,000,000

'

1,250,000,000

'

'

Proceeds from issuance of debt

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

494,000,000

'

836,000,000

'

986,000,000

'

986,000,000

'

1,230,000,000

'

'

Premiums paid to redeem or discharge debt

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

379,000,000

Write-off of previously recorded discounts and debt issuance cost

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

75,000,000

'

Other cost

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

3,000,000

'

Proceeds from convertible debt

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

311,000,000

1,120,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Conversion ratio, number of shares per $1,000 principal amount, numerator

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

53.83

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Conversion ratio, principal amount, denominator

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Initial conversion price of shares (in dollars per share)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$18.58

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Percentage of premium on closing trading price of the company's common stock used to determine initial conversion rate

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

27.50%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Cap price of capped call transactions (in dollars per share)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$21.86

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Capped call transactions

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

81,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Capped call transactions, associated tax benefits

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

29,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Percentage of purchase price to principal amount

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

103.81%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Trading price as a percentage of principal

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

105.87%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Change in fair value of the derivative

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

6,000,000

'

'

'

'

'

'

'

'

'

'

'

'

Long-term debt, fair value

$14,300,000,000

'

$14,900,000,000

$14,300,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

LongTerm_Debt_Schedule_of_Matu

Long-Term Debt - Schedule of Maturities of Long-Term Debt (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Debt Disclosure [Abstract]	'	'
2014	$536,900	'
2015	2,353,000	'
2016	1,641,959	'
2017	2,183,432	'
2018	492,500	'
Thereafter	6,249,817	'
Long-term debt, carrying amount	13,457,608	'
Debt premiums and discounts, net	-10,378	'
Long-term debt	$13,447,230	$13,589,283

Income_Taxes_Schedule_of_Conso

Income Taxes - Schedule of Consolidated Income (Loss) Before Taxes for Domestic and Foreign Operations (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Disclosure [Abstract]	'	'	'
Domestic operations	($419,316)	($2,048,868)	($902,613)
Foreign operations	507,081	314,655	3,734,244
Income (loss) before income taxes	$87,765	($1,734,213)	$2,831,631

Income_Taxes_Schedule_of_Incom

Income Taxes - Schedule of Income Tax Provision (Benefit) Attributable to Income (Loss) Before Income Taxes (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Federal	'	'	'
Current	$3,532	$1,636	($1,237)
Deferred (excluding separate components)	455,610	602,668	57,573
Deferred-operating loss carryforward	-305,760	89,954	260,167
Deferred-valuation allowance	-134,027	-608,015	'
Other noncurrent	14,523	-1,587	-2,812
Benefit for federal income taxes	33,878	84,656	313,691
State	'	'	'
Current	-1,812	-3,466	-4,482
Deferred (excluding separate components)	1,753	24,104	9,472
Deferred-operating loss carryforward	393	9,221	-3,357
Deferred-valuation allowance	-4,374	-2,579	-7,787
Deferred-enacted changes in tax laws or rates	'	'	-12,743
Other noncurrent	880	-5,493	-1,320
State and Local Income Tax Expense (Benefit), Continuing Operations	-3,160	21,787	-20,217
Foreign	'	'	'
Current	-2,214	-3,217	-3,800
Deferred (excluding separate components)	-70,440	12,471	113,639
Deferred-operating loss carryforward	1,312	-782	'
Deferred-valuation allowance	9,361	2,386	'
Benefit (provision) for foreign income taxes	-61,981	10,858	109,839
Income tax provision (benefit)	($31,263)	$117,301	$403,313

Income_Taxes_Schedule_of_Recon

Income Taxes - Schedule of Reconciliation of the Federal Income Tax Statutory Rate and the Company's Effective Tax Rate (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Disclosure [Abstract]	'	'	'
Federal income tax statutory rate	35.00%	35.00%	35.00%
Foreign tax credit, net of valuation allowance	-523.30%	19.80%	'
Repatriation of foreign earnings	523.30%	-19.20%	'
Federal valuation allowance	152.70%	-35.10%	'
State income tax, net of federal benefit and valuation allowance	2.30%	0.80%	0.50%
Settlements with taxing authorities	-16.60%	'	'
Macau deferred tax liability re-measurement	68.10%	'	'
Foreign jurisdiction income/losses taxed at other than 35%	-199.70%	7.00%	-2.10%
Foreign jurisdiction tax rate change	'	'	-4.60%
MGM China acquisition gain	'	'	-43.20%
Tax credits	-9.30%	0.50%	-0.20%
Permanent and other items	$0.03	($0.02)	$0.00
Provision for income taxes (as a percent)	35.60%	6.80%	-14.20%

Income_Taxes_Schedule_of_Major

Income Taxes - Schedule of Major Tax-Effected Components of the Company's Net Deferred Tax Liability (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Deferred tax assets	'	'
Deferred tax assets, net	$949,819	$1,129,546
Deferred tax liabilities	'	'
Total deferred tax liability	-3,299,244	-3,424,004
Net deferred tax liability	-2,349,425	-2,294,458
Federal and state [Member]	'	'
Deferred tax assets	'	'
Senior secured notes retirement	647	233,312
Bad debt reserve	37,327	38,048
Deferred compensation	3,680	3,080
Net operating loss carryforward	304,077	601,226
Accruals, reserves and other	148,438	88,097
Investments in unconsolidated affiliates	282,258	338,945
Stock-based compensation	31,185	36,728
Tax credits	1,796,599	820,299
Deferred tax assets ,gross	2,604,211	2,159,735
Less: Valuation allowance	-1,665,846	-1,032,423
Deferred tax assets, net	938,365	1,127,312
Deferred tax liabilities	'	'
Property and equipment	-2,488,287	-2,505,602
Long-term debt	-360,666	-550,811
Cost method investments	-23,944	-8,323
Intangibles	-105,231	-103,094
Total deferred tax liability	-2,978,128	-3,167,830
Foreign [Member]	'	'
Deferred tax assets	'	'
Bad debt reserve	333	1,477
Net operating loss carryforward	55,834	50,075
Accruals, reserves and other	154	1,439
Property and equipment	11,204	10,218
Deferred tax assets ,gross	67,525	63,209
Less: Valuation allowance	-56,071	-60,975
Deferred tax assets, net	11,454	2,234
Deferred tax liabilities	'	'
Intangibles	-321,116	-256,174
Total deferred tax liability	($321,116)	($256,174)

Income_Taxes_Additional_Inform

Income Taxes - Additional Information (Detail) (USD $)

12 Months Ended

0 Months Ended

12 Months Ended

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Sep. 22, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

MGM Grand Paradise SA [Member]

MGM China [Member]

MGM China [Member]

MGM China [Member]

Macau tax law [Member]

Macau tax law [Member]

Macau tax law [Member]

Macau tax law [Member]

Macau tax law [Member]

Foreign [Member]

Foreign [Member]

Foreign [Member]

Foreign [Member]

Foreign [Member]

MGM Grand Paradise SA [Member]

MGM Grand Paradise SA [Member]

MGM Grand Paradise SA [Member]

MGM Grand Paradise SA [Member]

MGM China [Member]

MGM China [Member]

2015 [Member]

2022 [Member]

2023 [Member]

Operating Loss Carryforwards [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Macau's complementary tax rate on distributions of gaming profits(as a percent)

'

'

'

'

'

'

'

'

12.00%

'

'

'

'

'

'

'

'

Period of exempted complementary tax rate granted by Macau government

'

'

'

'

'

'

'

'Five-year

'

'

'

'

'

'

'

'

'

Reduction in net income attributable to MGM Resorts International

'

'

'

'

'

'

'

'

$43,000,000

$34,000,000

'

'

'

'

'

'

'

Per share reduction in net income attributable to MGM Resorts International

'

'

'

'

'

'

'

'

$0.09

$0.07

'

'

'

'

'

'

'

Additional period of exempted complementary tax rate granted by Macau government

'

'

'

'

'

'

'

'

'5 years

'

'

'

'

'

'

'

'

Increase in provision for income taxes

'

'

'

65,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

Complementary tax

'

'

'

'

'

'

459,000,000

'

'

'

'

'

'

'

'

'

'

Cumulative annual payments for the covered period

'

'

'

'

'

'

'

'

'

4,000,000

'

'

'

'

'

'

'

Increase to benefit for income taxes

2,214,000

3,217,000

3,800,000

'

'

'

'

'

'

'

19,000,000

'

'

'

'

'

'

Extension period of annual fee arrangement

'

'

'

'

'

'

'

'

'5 years

'

'

'

'

'

'

'

'

Annual payments required under the extended annual fee arrangement

'

'

'

'

'

'

'

'

2,000,000

'

'

'

'

'

'

'

'

Annual payments accrued for extended annual fee arrangement

'

'

'

'

'

'

'

'

'

'

2,000,000

2,000,000

'

'

'

'

'

Repatriation of foreign earnings and profits

'

'

'

'

312,000,000

263,000,000

'

'

'

'

'

'

'

'

'

'

'

Unrepatriated foreign earnings and profits to be repatriated

282,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Deferred tax liability of repatriate

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Foreign tax credit carryovers amount

'

'

'

'

'

'

'

'

'

'

'

'

$968,000,000

$785,000,000

$2,000,000

$785,000,000

$968,000,000

Income_Taxes_Additional_Inform1

Income Taxes - Additional Information1 (Detail) (USD $)

1 Months Ended

12 Months Ended

12 Months Ended

12 Months Ended

12 Months Ended

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Mar. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2010

State [Member]

State [Member]

State [Member]

State [Member]

State [Member]

State [Member]

State [Member]

U.S. federal [Member]

U.S. federal [Member]

U.S. federal [Member]

U.S. federal [Member]

Macau tax law [Member]

IRS [Member]

Michigan [Member]

Michigan [Member]

Illinois [Member]

Illinois [Member]

Illinois [Member]

New Jersey [Member]

Alternative minimum tax [Member]

General business [Member]

Two Thousand And Fourteen [Member]

Minimum [Member]

Maximum [Member]

Operating Loss Carryforwards [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Net operating loss carryforwards

'

'

'

'

'

'

'

'

$80,000,000

'

'

$231,000,000

$808,000,000

'

'

'

'

'

Federal income tax net operating loss carryforward expiring year

'

'

'

'

'

'

'

'

'

'

'

'

'2031

'

'

'

'

'

Estimated alternative minimum tax credit carryforward

'

'

'

'

'

'

'

'

'

'

'

'

'

24,000,000

17,000,000

'

'

'

General business tax credit carryforward expiring year

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'2029

'

'

'

Charitable contribution carryforward will expire in 2014

'

'

'

'

'

'

'

'

'

'

'

'

12,000,000

'

'

3,000,000

'

'

Charitable contribution carryforward expiring year

'

'

'

'

'

'

'

'

'

'

'

'

'2014

'

'

'

'

'

Ownership change threshold set forth in Internal Revenue Code section 382

'

50.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Deferred tax assets after federal tax effect and before valuation allowance

'

'

'

'

'

'

'

'

4,000,000

'

'

14,000,000

'

'

'

'

'

'

Net operating loss carryforwards expire

'

'

'

'

'

'

'

'

'

'2021

'2025

'

'

'

'

'

'

'

Net operating loss carryforwards expiration period

'

'

'

'

'

'

'

'

'

'

'

'2014 through 2033

'

'

'

'

'

'

Tax rate

'

'

'

'

'

'

6.00%

'

'

'

'

'

'

'

'

'

'

'

Net operating loss to be carried back to prior tax years

'

'

'

'

'

'

'

198,000,000

'

'

'

'

'

'

'

'

'

'

Net operating loss carryforward period

'

'

'

'

'

'

'10 years

'

'

'

'

'

'

'

'

'

'

'

Increase in deferred tax liability due to change in tax rate

'

'

'

'

'

'

'

8,000,000

'

'

'

'

'

'

'

'

'

'

Deferred tax assets, valuation allowance

'

'

'

'

'

16,000,000

'

'

'

'

'

'

1,650,000,000

'

'

'

'

'

Tax credit carryforward, valuation allowance

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

56,000,000

'

Tax benefit threshold limit

50.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Uncertain tax positions, current

16,000,000

16,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Uncertain tax positions, long-term

87,000,000

87,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Unrecognized tax benefits, if recognized, would affect the effective tax rate

32,000,000

32,000,000

39,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

unrecognized tax benefits related to permanent differences

'

6,000,000

6,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Interest related to unrecognized tax benefits accrued

17,000,000

17,000,000

29,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Interest related to unrecognized tax benefits

'

12,000,000

3,000,000

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Accrued penalties

0

0

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Tax paid relating to federal income tax returns for 2003 and 2004 tax years

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

12,000,000

Interest paid relating to federal income tax returns for the 2003 and 2004 tax years

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

4,000,000

Maximum period for settlement of appeal

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'12 months

Income tax refund

'

'

'

'

2,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

Deposited $30 million with the IRS to cover the expected cash taxes and interest

'

30,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Reasonably possible, decrease in liability for uncertain tax positions, high end of range

$82,000,000

$82,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Income_Taxes_Schedule_of_Recon1

Income Taxes - Schedule of Reconciliation of the Beginning and Ending Amounts of Gross Unrecognized Tax Benefits (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Disclosure [Abstract]	'	'	'
Gross unrecognized tax benefits at January 1	$153,184	$145,799	$134,417
Gross increases - Prior period tax positions	6,082	6,903	9,360
Gross decreases - Prior period tax positions	-35,508	-12,639	-13,772
Gross increases - Current period tax positions	4,064	13,121	15,794
Settlements with taxing authorities	-21,576	'	'
Gross unrecognized tax benefits at December 31	$106,246	$153,184	$145,799

Commitments_and_Contingencies_1

Commitments and Contingencies - Schedule of Future Minimum Lease Payments Required to be Made under Non-Cancellable Operating Leases and Capital Leases (Detail) (USD $)	Dec. 31, 2013
In Thousands, unless otherwise specified
Operating Leases [Member]	'
Future Minimum Lease Payments Under Noncancellable Operating Leases [Line Items]	'
2014	$42,951
2015	42,164
2016	41,387
2017	16,322
2018	17,739
Thereafter	1,095,046
Total minimum lease payments	1,255,609
Capital Leases [Member]	'
Future Minimum Lease Payments Under Noncancellable Operating Leases [Line Items]	'
2014	965
2015	878
2016	234
2017	'
2018	'
Thereafter	'
Total minimum lease payments	2,077
Less: Amounts representing interest	-99
Total obligations under capital leases	1,978
Less: Amounts due within one year	-898
Amounts due after one year	$1,080

Commitments_and_Contingencies_2

Commitments and Contingencies - Additional Information (Detail) (USD $)

12 Months Ended

12 Months Ended

0 Months Ended

12 Months Ended

1 Months Ended

1 Months Ended

12 Months Ended

1 Months Ended

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Jan. 09, 2013

Dec. 31, 2013

Oct. 18, 2012

Dec. 31, 2013

Jan. 31, 2014

Apr. 30, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Aug. 31, 2013

Apr. 30, 2010

Mar. 31, 2010

Feb. 28, 2014

Dec. 31, 2013

Oct. 01, 2011

Dec. 31, 2013

Dec. 31, 2013

Senior credit facility [Member]

Senior credit facility [Member]

Cotai Land Concession Contract [Member]

Cotai Land Concession Contract [Member]

Cotai Land Concession Contract [Member]

Cotai Land Concession Contract [Member]

Cotai Land Concession Contract [Member]

Cotai Land Concession Contract [Member]

Maryland [Member]

Completion guarantee [Member]

Guarantees [Member]

CityCenter Holdings, LLC [Member]

CityCenter Holdings, LLC [Member]

CityCenter Holdings, LLC [Member]

CityCenter Holdings, LLC [Member]

CityCenter Holdings, LLC [Member]

CityCenter Holdings, LLC [Member]

CityCenter Holdings, LLC [Member]

CityCenter Holdings, LLC [Member]

CityCenter Holdings, LLC [Member]

Letters of credit [Member]

MGM Grand Paradise SA [Member]

MGM Grand Paradise SA [Member]

MGM Grand Paradise SA [Member]

MGM China [Member]

Subsequent Event [Member]

acre

MGM Resorts International [Member]

MGM China [Member]

Perini Litigation [Member]

Perini Litigation [Member]

Perini Litigation [Member]

Perini Litigation [Member]

Perini Litigation [Member]

Pending Litigation [Member]

Completion guarantee [Member]

Completion guarantee [Member]

Completion guarantee [Member]

Payments

acre

MGM China [Member]

Amended and restated MGM China credit facility [Member]

Perini construction agreement [Member]

Perini construction agreement [Member]

Perini construction agreement [Member]

Perini construction agreement [Member]

Perini construction agreement [Member]

MGM Resorts International [Member]

Perini construction agreement [Member]

Payments

Subsequent Event [Member]

Subcontractor

MGM Resorts International [Member]

Loss Contingencies [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Rental expense for operating leases

$41,000,000

$33,000,000

$30,000,000

'

'

$7,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Land lease agreement

'

'

'

'

'

'

'

'

'

'

'

23

'

'

'

'

'

'

'

'

'

'

'

Area of development site (in acres)

'

'

'

'

'

'

'

'

17.8

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Initial term of contract

'

'

'

'

'

'

'25 years

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Payable for land concession contract

'

'

'

'

'

'

161,000,000

'

'

'

88,000,000

'

'

'

'

'

'

'

'

'

'

'

'

Remaining number of semi-annual payments

'

'

'

'

'

'

8

'

'

'

6

'

'

'

'

'

'

'

'

'

'

'

'

Contract premium, recorded within other long-term assets

'

'

'

'

'

'

'

'

'

71,000,000

15,000,000

'

'

'

'

'

'

'

'

'

'

'

'

Concession contract rent paid per year during development

'

'

'

'

'

'

'

269,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Concession contract rent paid per year after development

'

'

'

'

'

'

'

681,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Annual rent review period

'

'

'

'

'

'

'

'5 years

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Damages sought

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

167,000,000

491,000,000

490,000,000

174,000,000

'

'

'

'

Number of claims resolved

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

219

'

'

'

Number of claims for further proceedings

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

3

'

'

'

Liable to pay lawsuit

'

'

'

'

'

'

'

'

'

'

'

'

'

'

152,000,000

'

'

'

'

'

'

'

'

Net residential proceeds to fund or reimburse construction costs

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

72,000,000

'

'

Estimated obligation offset by condominium proceeds

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

72,000,000

72,000,000

Amount funded under completion guarantee

'

'

'

'

'

'

'

'

'

'

'

'

716,000,000

'

'

'

'

'

'

'

'

'

'

Remaining estimated net obligation under the completion guarantee

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

97,000,000

Amount that can be issued

'

'

'

'

500,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Total letters of credit

'

'

'

35,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Guarantees provided

'

'

'

'

'

'

'

'

'

'

'

'

'

$39,000,000

'

'

'

'

'

'

'

'

'

Stockholders_Equity_Additional

Stockholders' Equity - Additional Information (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Sep. 30, 2013	Mar. 31, 2013	Mar. 31, 2012	Sep. 30, 2013	Mar. 31, 2013	Mar. 31, 2012	Feb. 28, 2014	Feb. 28, 2014	Feb. 28, 2014
In Millions, except Share data, unless otherwise specified			Non-controlling Interests [Member]	Non-controlling Interests [Member]	Non-controlling Interests [Member]	MGM China [Member]	MGM China [Member]	MGM China [Member]	MGM China [Member]	MGM China [Member]	MGM China [Member]
									Subsequent Event [Member]	Subsequent Event [Member]	Subsequent Event [Member]
										Dividend Paid [Member]	Final dividend [Member]
Class of Stock [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Number of authorized shares of common stock	1,000,000,000	1,000,000,000	'	'	'	'	'	'	'	'	'
Remaining number of shares authorized to be repurchased	20,000,000	'	'	'	'	'	'	'	'	'	'
Dividends paid	'	'	$55	$245	$196	$113	$500	$400	'	'	'
Dividends paid	'	'	'	'	'	58	255	204	'	'	'
Dividend declared	'	'	'	'	'	'	'	'	'	500	128
Dividend receivable	'	'	'	'	'	'	'	'	$255	'	'

Non_Controlling_Interests_Addi

Non Controlling Interests - Additional Information (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Noncontrolling Interest [Abstract]	'	'	'
Distributions to noncontrolling interests	$318,348	$206,806	$3,768
Net income attributable to noncontrolling interests	$213,108	$150,779	$120,307

StockBased_Compensation_Additi

Stock-Based Compensation - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Intrinsic value of share-based awards exercised	3,000,000
Stock Options and SARs [Member] | Minimum [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Term of award	'7 years
Vesting period	'4 years
Stock Options and SARs [Member] | Maximum [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Term of award	'10 years
Vesting period	'5 years
RSUs [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Vesting period	'4 years
Omnibus Plan [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Maximum number of shares to be issued	35,000,000
Number of shares available for grant as share-based awards	15,000,000
Omnibus Plan [Member] | Stock Options and SARs [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Unamortized compensation	32,000,000
Weighted-average period over which compensation cost is expected to be recognized	'1 year 7 months 6 days
Omnibus Plan [Member] | Stock Options and SARs [Member] | Maximum [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Term of award	'10 years
Omnibus Plan [Member] | RSUs [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Unamortized compensation	15,000,000
Weighted-average period over which compensation cost is expected to be recognized	'1 year 8 months 12 days
Vested shares deferred by members of Board of Directors	580,000
Omnibus Plan [Member] | PSUs [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Performance period	'3 years
Ending average price that must equal target price, defined as a percentage of beginning average stock price	125.00%
Shares issued	0
Period of average closing price of common stock on which beginning and ending prices are based	'60 days
Unamortized compensation	10,000,000
Weighted-average period over which compensation cost is expected to be recognized	'2 years 2 months 12 days
Omnibus Plan [Member] | PSUs [Member] | Minimum [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Ending price required for issuance of shares as a percentage of target price	60.00%
Omnibus Plan [Member] | PSUs [Member] | Maximum [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Capped payout as a percentage of the target award	160.00%
Omnibus Plan [Member] | Board of Directors [Member] | RSUs [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Vested shares deferred by members of Board of Directors	62,000
MGM China Share Option Plan [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Intrinsic value of share-based awards exercised	14,769,000
MGM China [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Proceeds related to the exercise of share-based awards	6,000,000
Expenses to repurchase common stock for cancelation	9,000,000
MGM China [Member] | MGM China Share Option Plan [Member] | Stock Options [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Term of award	'10 years
Vesting period	'4 years
Number of shares available for grant as share-based awards	359,000,000
Unamortized compensation	10,000,000
Weighted-average period over which compensation cost is expected to be recognized	'1 year 8 months 12 days
Business days immediately preceding the offer date for which average closing price is considered	'5 days
MGM China [Member] | MGM China Share Option Plan [Member] | Stock Options [Member] | Maximum [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Term of award	'10 years
Shares issuable upon exercise as percentage of issued shares as of plan approval date	10.00%

StockBased_Compensation_Summar

Stock-Based Compensation - Summary of Stock Options and Stock Appreciation Rights Activity (Detail) (Omnibus Plan [Member], USD $)	12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2013
Omnibus Plan [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Outstanding at the beginning of the period (in shares)	22,929
Granted (in shares)	1,717
Exercised (in shares)	-3,027
Forfeited or expired (in shares)	-5,545
Outstanding at the end of the period (in shares)	16,074
Vested and expected to vest at the end of the period (in shares)	15,726
Exercisable at the end of the period (in shares)	10,393
Outstanding at the beginning of the period (in dollars per share)	$14.44
Granted (in dollars per share)	$19.98
Exercised (in dollars per share)	$10.65
Forfeited or expired (in dollars per share)	$16.09
Outstanding at the end of the period (in dollars per share)	$15.22
Vested and expected to vest at the end of the period (in dollars per share)	$15.21
Exercisable at the end of the period (in dollars per share)	$16.37
Outstanding at the end of the period	'3 years 9 months 11 days
Vested and expected to vest at the end of the period	'3 years 8 months 23 days
Exercisable at the end of the period	'2 years 10 months 6 days
Outstanding at the end of the period (in dollars)	$165,484
Vested and expected to vest at the end of the period (in dollars)	162,736
Exercisable at the end of the period (in dollars)	$106,300

StockBased_Compensation_Schedu

Stock-Based Compensation - Schedule of Restricted Stock Units and Performance Share Units (Detail) (Omnibus Plan [Member], USD $)	12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2013
PSUs [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Nonvested at the beginning of the period (in shares)	688
Granted (in shares)	373
Forfeited (in shares)	-6
Nonvested at the end of the period (in shares)	1,055
Nonvested at the beginning of the period (in dollars per share)	$10.03
Granted (in dollars per share)	$21.01
Forfeited (in dollars per share)	$10.03
Nonvested at the end of the period (in dollars per share)	$13.91
Nonvested at the beginning of period, Weighted Average Target Price (in dollars per share)	$13.37
Granted, Weighted Average Target Price (in dollars per share)	$23.50
Forfeited, Weighted Average Target Price (in dollars per share)	$13.37
Nonvested at the end of period, Weighted Average Target Price (in dollars per share)	$16.95
RSUs [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Nonvested at the beginning of the period (in shares)	1,424
Granted (in shares)	566
Vested (in shares)	-580
Forfeited (in shares)	-71
Nonvested at the end of the period (in shares)	1,339
Nonvested at the beginning of the period (in dollars per share)	$10.17
Granted (in dollars per share)	$19.38
Vested (in dollars per share)	$10.66
Forfeited (in dollars per share)	$10.28
Nonvested at the end of the period (in dollars per share)	$13.85

StockBased_Compensation_Schedu1

Stock-Based Compensation - Schedule of Additional Information Related to Stock Options, SARs and RSUs (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]	'	'	'
Intrinsic value of share-based awards exercised or RSUs vested	$28,880	$6,451	$4,841
Income tax benefit from share-based awards exercised or RSUs vested	$9,975	$2,236	$1,675

StockBased_Compensation_Summar1

Stock-Based Compensation - Summary of Stock Option Activity (Detail) (USD $)	12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Exercisable at the end of the period (in dollars)	$3,000
MGM China Share Option Plan [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Outstanding at the beginning of the period (in shares)	19,235
Granted (in shares)	1,110
Exercised (in shares)	-2,704
Forfeited or expired (in shares)	-725
Outstanding at the end of the period (in shares)	16,916
Vested and expected to vest at the end of the period (in shares)	16,394
Exercisable at the end of the period (in shares)	6,484
Outstanding at the beginning of the period (in dollars per share)	$1.98
Granted (in dollars per share)	$3.20
Exercised (in dollars per share)	$2
Forfeited or expired (in dollars per share)	$2.05
Outstanding at the end of the period (in dollars per share)	$2.06
Vested and expected to vest at the end of the period (in dollars per share)	$2.06
Exercisable at the end of the period (in dollars per share)	$1.98
Outstanding at the end of the period	'7 years 5 months 27 days
Vested and expected to vest at the end of the period	'7 years 5 months 23 days
Exercisable at the end of the period	'7 years 4 months 2 days
Outstanding at the end of the period (in dollars)	37,291
Vested and expected to vest at the end of the period (in dollars)	21,396
Exercisable at the end of the period (in dollars)	$14,769

StockBased_Compensation_Schedu2

Stock-Based Compensation - Schedule of Compensation Cost Recognized (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Compensation cost:	'	'	'
Compensation cost	$33,422	$43,428	$44,279
Less: Reimbursed costs and other	-1,090	-3,868	-4,572
Compensation cost recognized as expense	32,332	39,560	39,707
Less: Related tax benefit	'	-1,660	-12,712
Compensation expense, net of tax benefit	32,332	37,900	26,995
Omnibus Plan [Member]	'	'	'
Compensation cost:	'	'	'
Compensation cost	27,201	37,588	41,103
MGM China Share Option Plan [Member]	'	'	'
Compensation cost:	'	'	'
Compensation cost	$6,221	$5,840	$3,176

StockBased_Compensation_Weight

Stock-Based Compensation - Weighted Average Assumptions Utilized for SARs Grants (Detail) (Omnibus Plan [Member], Stock Appreciation Rights (SARs) [Member], USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Omnibus Plan [Member] | Stock Appreciation Rights (SARs) [Member]	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Expected volatility (as a percent)	54.00%	65.00%	72.00%
Expected term	'4 years 10 months 24 days	'5 years	'4 years 10 months 24 days
Expected dividend yield (as a percent)	0.00%	0.00%	0.00%
Risk-free interest rate (as a percent)	1.60%	0.70%	1.00%
Weighted-average fair value of SARs granted (in dollars per share)	$9.44	$5.60	$5.29

StockBased_Compensation_Weight1

Stock-Based Compensation - Weighted Average Assumptions Utilized for PSUs (Detail) (Omnibus Plan [Member], PSUs [Member], USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Omnibus Plan [Member] | PSUs [Member]	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Expected volatility (as a percent)	40.00%	49.00%
Expected term	'3 years	'3 years
Expected dividend yield (as a percent)	0.00%	0.00%
Risk-free interest rate (as a percent)	0.60%	0.40%
Weighted-average fair value of PSUs granted (in dollars per share)	$21.01	$10.03

StockBased_Compensation_Weight2

Stock-Based Compensation - Weighted Average Assumptions Utilized for Stock Option Grants (Detail) (MGM China [Member], MGM China Share Option Plan [Member], Stock Options [Member], USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
MGM China [Member] | MGM China Share Option Plan [Member] | Stock Options [Member]	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Expected volatility (as a percent)	46.00%	60.00%	60.00%
Expected term	'8 years	'8 years	'8 years
Expected dividend yield (as a percent)	1.20%	0.00%	0.00%
Risk-free interest rate (as a percent)	1.70%	2.10%	2.10%
Weighted-average fair value of options granted (in dollars per share)	$1.39	$1.13	$1.26

Employee_Benefit_Plans_Table_O

Employee Benefit Plans - Table Outlining Company's Participation in Pension Plan (Detail) (Southern Nevada Culinary and Bartenders Pension Plan [Member])	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Southern Nevada Culinary and Bartenders Pension Plan [Member]	'	'	'
Multiemployer Plans [Line Items]	'	'	'
Employer identification number	'886016617	'	'
Pension plan number	'001	'	'
Pension Protection Act Zone Status	'	'Green	'Green
Expiration Date of Collective Bargaining Agreements, First	12-Nov-14	'	'
Expiration Date of Collective Bargaining Agreements, Last	31-May-18	'	'

Employee_Benefit_Plans_Table_O1

Employee Benefit Plans - Table Outlining Company's Participation in Pension Plan (Parenthetical) (Detail) (Multiemployer Benefit Plans [Member])	12 Months Ended
	Dec. 31, 2013
	Agreement
Multiemployer Benefit Plans [Member]	'
Multiemployer Plans [Line Items]	'
Number of collective-bargaining agreements that require contributions to the Pension Plan	10

Employee_Benefit_Plans_Schedul

Employee Benefit Plans - Schedule of Contributions of Company's Multiemployer Pension Plans and Other Multiemployer Benefit Plans (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Southern Nevada Culinary and Bartenders Pension Plan [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Contributions	$37,691	$35,556	$31,476
Other pension plans not individually significant [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Contributions	8,280	8,083	7,812
Multiemployer Benefit Plans [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Contributions	45,971	43,639	39,288
UNITE HERE Health [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Contributions	167,494	162,453	160,270
Other benefit plans [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Contributions	15,367	14,172	13,608
Multiemployer Benefit Plans Other Than Pensions [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Contributions	$182,861	$176,625	$173,878

Employee_Benefit_Plans_Additio

Employee Benefit Plans - Additional Information (Detail) (USD $)	1 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2008	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Pension Plans, Postretirement and Other Employee Benefits [Line Items]	'	'	'	'
Percentage increase in hours worked by employees	'	3.00%	1.00%	'
Liability for health care claims	'	$19	$22	'
Workers compensation liability	'	42	40	'
Employee contribution limit per calendar year as a percentage of compensation	'	30.00%	'	'
Amount of charges recorded for 401(k) contributions	'	13	12	10
Maximum retirement benefit as a percentage of participant's estimated average annual salary	65.00%	'	'	'
Period for estimated average annual salary to provide a retirement benefit	'5 years	'	'	'
Vesting, plan participation only portion, plan participation period	'	'3 years	'	'
Vesting, plan participation and continuous service portion, plan participation period	'	'5 years	'	'
Vesting, plan participation and continuous service portion, continuous service period	'	'10 years	'	'
Contributions to retirement plan	'	$5	$4	$2
Bellagio Aria Mandalay Bay and MGM Grand Las Vegas [Member]	'	'	'	'
Pension Plans, Postretirement and Other Employee Benefits [Line Items]	'	'	'	'
Minimum percentage of total contributions to be listed in Pension Plan's Forms 5500	'	'	5.00%	5.00%

Property_Transactions_Net_Sche

Property Transactions, Net - Schedule of Property Transactions, Net (Detail) (USD $)

3 Months Ended

12 Months Ended

3 Months Ended

12 Months Ended

0 Months Ended

3 Months Ended

12 Months Ended

3 Months Ended

12 Months Ended

3 Months Ended

12 Months Ended

3 Months Ended

12 Months Ended

In Thousands, unless otherwise specified

Jun. 30, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2012

Dec. 31, 2012

Dec. 31, 2011

Jun. 30, 2013

Jun. 30, 2012

Jun. 30, 2013

Jun. 30, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2012

Dec. 31, 2012

Dec. 31, 2012

Sep. 30, 2011

Dec. 31, 2011

Borgata Trust [Member]

Borgata Trust [Member]

Borgata Trust [Member]

Grand Victoria [Member]

Grand Victoria [Member]

Grand Victoria [Member]

Grand Victoria [Member]

Grand Victoria [Member]

Grand Victoria [Member]

Silver Legacy [Member]

Corporate Buildings [Member]

Other Nevada Land [Member]

North Las Vegas Strip Land [Member]

North Las Vegas Strip Land [Member]

Atlantic City Land [Member]

Atlantic City Land [Member]

Circus Circus Reno [Member]

Circus Circus Reno [Member]

Property, Plant and Equipment [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Asset impairment charges

$45

'

'

'

'

'

'

'

'

'

'

'

'

'

$44,510

'

'

'

'

'

'

'

Real estate impairment charges

'

20,354

'

'

'

'

'

'

'

'

'

'

'

'

'

20,354

366,000

366,406

167,000

166,569

'

'

Investment impairment

'

'

'

'

'

'

'

37,000

85,000

37,000

85,000

36,607

85,009

22,966

'

'

'

'

'

'

'

'

Impairment charges on cost method investments

'

'

'

'

65,000

65,000

61,962

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Asset impairment charges

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

80,000

79,658

Other property transactions, net

'

23,290

25,065

14,012

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Property transactions, net

'

$124,761

$708,049

$178,598

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Property_Transactions_Net_Addi

Property Transactions, Net - Additional Information (Detail) (USD $)

3 Months Ended

12 Months Ended

3 Months Ended

12 Months Ended

12 Months Ended

Jun. 30, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2013

Jun. 30, 2013

Borgata Trust [Member]

Borgata Trust [Member]

Borgata Trust [Member]

Borgata Trust [Member]

Borgata Trust [Member]

Borgata Trust [Member]

Borgata Trust [Member]

Borgata Trust [Member]

Borgata Trust [Member]

Jean, Nevada [Member]

Sloan, Nevada [Member]

Other Joint Venture [Member]

Nonrecurring Fair Value Measurement [Member]

Nonrecurring Fair Value Measurement [Member]

Nonrecurring Fair Value Measurement [Member]

Nonrecurring Fair Value Measurement [Member]

Nonrecurring Fair Value Measurement [Member]

Nonrecurring Fair Value Measurement [Member]

acre

acre

Level 3 [Member]

Level 3 [Member]

Level 3 [Member]

Level 3 [Member]

Discounted Cash Flow Analysis [Member]

Discounted Cash Flow Analysis [Member]

Schedule of Equity Method Investments [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Corporate buildings impairment charges

$45,000

'

'

'

'

'

'

'

'

'

'

'

'

'

Percentage of ownership interests

'

'

'

'

'

'

'

'

'

'

'

'

'

50.00%

Area of land (in acres)

'

'

'

'

'

'

'

'

'

'

'

170

89

'

Land impairment charge

'

20,354,000

'

'

'

'

'

'

'

'

'

'

'

'

Estimated fair value

'

24,000,000

'

'

'

'

'

'

'

'

'

'

'

'

Impairment charges on cost method investments

'

'

65,000,000

65,000,000

61,962,000

65,000,000

62,000,000

'

'

'

'

'

'

'

Estimated fair value

'

'

'

'

'

'

'

$120,000,000

$185,000,000

'

'

'

'

'

Discount rate (as a percent)

'

'

'

'

'

'

'

'

'

10.50%

10.50%

'

'

'

Long-term growth rate (as a percent)

'

'

'

'

'

'

'

'

'

2.50%

3.00%

'

'

'

Property_Transactions_Net_Addi1

Property Transactions, Net - Additional Information 1 (Detail) (USD $)	12 Months Ended	3 Months Ended	12 Months Ended		3 Months Ended	12 Months Ended		3 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2012	Dec. 31, 2012	Dec. 31, 2012	Dec. 31, 2012	Dec. 31, 2012	Sep. 30, 2011	Dec. 31, 2011	Sep. 30, 2011	Dec. 31, 2011
		North Las Vegas Strip Land [Member]	North Las Vegas Strip Land [Member]	North Las Vegas Strip Land [Member]	Atlantic City Land [Member]	Atlantic City Land [Member]	Atlantic City Land [Member]	Circus Circus Reno [Member]	Circus Circus Reno [Member]	Circus Circus Reno [Member]	Railroad Pass [Member]
		acre	acre	Nonrecurring Fair Value Measurement [Member]	acre	acre	Nonrecurring Fair Value Measurement [Member]			Nonrecurring Fair Value Measurement [Member]
				Fair Value, Inputs, Level 2 and 3 [Member]			Fair Value, Inputs, Level 2 and 3 [Member]			Level 3 [Member]
										Discounted Cash Flow Analysis [Member]
Schedule of Equity Method Investments [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Area of land (in acres)	'	33.5	33.5	'	86	86	'	'	'	'	'
Real estate impairment charges	$20,354,000	$366,000,000	$366,406,000	'	$167,000,000	$166,569,000	'	'	'	'	'
Estimated fair value	'	'	'	214,000,000	'	'	125,000,000	'	'	'	'
Non-cash impairment charges	'	'	'	'	'	'	'	80,000,000	79,658,000	'	'
Long-term growth rate (as a percent)	'	'	'	'	'	'	'	'	'	2.00%	'
Discount rate (as a percent)	'	'	'	'	'	'	'	'	'	16.50%	'
Goodwill write-off related to Railroad Pass	'	'	'	'	'	'	'	'	'	'	$5,000,000

Segment_Information_Additional

Segment Information - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2013
	Segment
	Region
Segment Reporting [Abstract]	'
Number of geographic regions, where principal operating activities of the entity occur	2
Number of reportable segments	2

Segment_Information_Schedule_o

Segment Information - Schedule of Segment Information (Detail) (USD $)	3 Months Ended								12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Segment Reporting Information [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Net revenues	$2,513,213	$2,463,037	$2,481,265	$2,352,148	$2,294,511	$2,254,978	$2,323,765	$2,287,590	$9,809,663	$9,160,844	$7,849,312
Adjusted EBITDA	'	'	'	'	'	'	'	'	2,098,812	1,718,399	1,556,569
Other operating income (expense):	'	'	'	'	'	'	'	'	'	'	'
Preopening and start-up expenses	'	'	'	'	'	'	'	'	-13,314	-2,127	316
Property transactions, net	'	'	'	'	'	'	'	'	-124,761	-708,049	-178,598
Gain on MGM China transaction	'	'	'	'	'	'	'	'	'	'	3,496,005
Depreciation and amortization	'	'	'	'	'	'	'	'	-849,225	-927,697	-817,146
Operating income	330,330	247,763	231,602	301,817	-424,856	137,401	175,375	192,606	1,111,512	80,526	4,057,146
Non-operating expense:	'	'	'	'	'	'	'	'	'	'	'
Interest expense, net of amounts capitalized	'	'	'	'	'	'	'	'	-857,347	-1,116,358	-1,086,832
Non-operating items from unconsolidated affiliates	'	'	'	'	'	'	'	'	-157,338	-90,020	-119,013
Other, net	'	'	'	'	'	'	'	'	-9,062	-608,361	-19,670
Total non-operating income (expense)	'	'	'	'	'	'	'	'	-1,023,747	-1,814,739	-1,225,515
Income (loss) before income taxes	'	'	'	'	'	'	'	'	87,765	-1,734,213	2,831,631
Benefit (provision) for income taxes	'	'	'	'	'	'	'	'	-31,263	117,301	403,313
Net income (loss)	40,877	23,625	-30,578	22,578	-1,188,497	-154,674	-70,434	-203,307	56,502	-1,616,912	3,234,944
Less: Net income attributable to noncontrolling interests	'	'	'	'	'	'	'	'	-213,108	-150,779	-120,307
Net income (loss) attributable to MGM Resorts International	'	'	'	'	'	'	'	'	-156,606	-1,767,691	3,114,637
Wholly owned domestic resorts [Member]	'	'	'	'	'	'	'	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Net revenues	'	'	'	'	'	'	'	'	6,052,644	5,932,791	5,892,902
Adjusted EBITDA	'	'	'	'	'	'	'	'	1,442,686	1,325,220	1,298,116
MGM China [Member]	'	'	'	'	'	'	'	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Net revenues	'	'	'	'	'	'	'	'	3,316,928	2,807,676	1,534,963
Adjusted EBITDA	'	'	'	'	'	'	'	'	814,109	679,345	359,686
Reportable segments [Member]	'	'	'	'	'	'	'	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Net revenues	'	'	'	'	'	'	'	'	9,369,572	8,740,467	7,427,865
Adjusted EBITDA	'	'	'	'	'	'	'	'	2,256,795	2,004,565	1,657,802
Corporate and other [Member]	'	'	'	'	'	'	'	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Net revenues	'	'	'	'	'	'	'	'	440,091	420,377	421,447
Adjusted EBITDA	'	'	'	'	'	'	'	'	($157,983)	($286,166)	($101,233)

Segment_Information_Schedule_o1

Segment Information - Schedule of Segment Capital Expenditures Information (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Segment Reporting Information [Line Items]	'	'	'
Total assets	$26,110,185	$26,284,738	'
Property and equipment, net	14,055,212	14,194,652	'
Capital expenditures	562,124	422,763	301,244
Eliminated in consolidation [Member]	'	'	'
Segment Reporting Information [Line Items]	'	'	'
Total assets	-24,066,974	-23,874,968	'
Property and equipment, net	-11,972	-11,972	'
Capital expenditures	'	'	'
Capital expenditure payment	-15,981	-5,709	'
Wholly owned domestic resorts [Member]	'	'	'
Segment Reporting Information [Line Items]	'	'	'
Total assets	13,151,719	13,442,067	'
Property and equipment, net	11,787,880	12,145,724	'
Capital expenditures	216,147	258,519	235,638
MGM China [Member]	'	'	'
Segment Reporting Information [Line Items]	'	'	'
Total assets	9,203,742	9,097,845	'
Property and equipment, net	957,769	737,920	'
Capital expenditures	254,516	80,018	26,649
Reportable segments [Member]	'	'	'
Segment Reporting Information [Line Items]	'	'	'
Total assets	22,355,461	22,539,912	'
Property and equipment, net	12,745,649	12,883,644	'
Capital expenditures	470,663	338,537	262,287
Corporate and other [Member]	'	'	'
Segment Reporting Information [Line Items]	'	'	'
Total assets	3,776,414	3,750,535	'
Property and equipment, net	1,331,253	1,316,717	'
Capital expenditures	$107,442	$89,935	$38,957

Related_Party_Transactions_Add

Related Party Transactions - Additional Information (Detail) (USD $)

12 Months Ended

12 Months Ended

7 Months Ended

12 Months Ended

7 Months Ended

12 Months Ended

7 Months Ended

12 Months Ended

In Millions, unless otherwise specified

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Jun. 30, 2011

Apr. 30, 2010

Jun. 30, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

CityCenter Holdings, LLC [Member]

CityCenter Holdings, LLC [Member]

CityCenter Holdings, LLC [Member]

CityCenter Holdings, LLC [Member]

CityCenter Holdings, LLC [Member]

CityCenter Holdings, LLC [Member]

CityCenter Holdings, LLC [Member]

CityCenter Holdings, LLC [Member]

CityCenter Holdings, LLC [Member]

Aria and Vdara [Member]

Crystals [Member]

4.25% convertible senior notes, due 2015, net [Member]

4.25% convertible senior notes, due 2015, net [Member]

4.25% convertible senior notes, due 2015, net [Member]

4.25% convertible senior notes, due 2015, net [Member]

4.25% convertible senior notes, due 2015, net [Member]

OE Pub, LLC [Member]

OE Pub, LLC [Member]

OE Pub, LLC [Member]

MGM Branding and Development and MGM China [Member]

MGM Branding and Development and MGM China [Member]

MGM Branding and Development and MGM China [Member]

MGM Branding and Development and MGM China [Member]

MGM Branding and Development and MGM China [Member]

MGM Branding and Development and MGM China [Member]

MGM Branding and Development and MGM China [Member]

MGM Branding and Development and MGM China [Member]

MGM Branding and Development and MGM China [Member]

MGM China [Member]

MGM China [Member]

MGM China [Member]

MGM China [Member]

MGM China [Member]

MGM China [Member]

MGM Branding and Development [Member]

MGM Branding and Development [Member]

MGM Branding and Development [Member]

Aircraft Agreement [Member]

Aircraft Agreement [Member]

Aircraft Agreement [Member]

Management Services and Reimbursable Costs [Member]

Management Services and Reimbursable Costs [Member]

Management Services and Reimbursable Costs [Member]

CityCenter Holdings, LLC [Member]

CityCenter Holdings, LLC [Member]

Ms. Pansy Ho [Member]

CityCenter Holdings, LLC [Member]

CityCenter Holdings, LLC [Member]

CityCenter Holdings, LLC [Member]

Development Services Agreement [Member]

Development Services Agreement [Member]

Development Services Agreement [Member]

Development Services Agreement [Member]

Brand License Agreement [Member]

Brand License Agreement [Member]

Brand License Agreement [Member]

Brand License Agreement [Member]

Brand License Agreement [Member]

Shun Tak [Member]

Shun Tak [Member]

Shun Tak [Member]

Shun Tak [Member]

Shun Tak [Member]

Shun Tak [Member]

Ms. Pansy Ho [Member]

Ms. Pansy Ho [Member]

Ms. Pansy Ho [Member]

Lease Of Retail Space [Member]

Lease Of Retail Space [Member]

Lease Of Retail Space [Member]

Maximum [Member]

Maximum [Member]

Ms. Pansy Ho [Member]

Ms. Pansy Ho [Member]

Ms. Pansy Ho [Member]

Maximum [Member]

Maximum [Member]

Maximum [Member]

Related Party Transaction [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Management fee as a percentage of revenue

'

'

'

'

'

'

'

'

'

2.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Management fee received, percentage of EBITDA

'

'

'

'

'

'

'

'

'

5.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Annual management fee

$38

$32

$33

'

'

'

'

'

'

'

$3

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Reimbursable costs for support services provided

'

'

'

3

3

3

364

355

346

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Receivable related to management services and reimbursable costs

'

'

'

'

'

'

49

50

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Expenses incurred

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1

1

1

'

'

'

'

'

'

'

'

'

9

18

13

'

'

'

'

'

'

Revenue related to hotel rooms provided

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1

1

1

'

'

'

License fee as percentage of MGM China consolidated net revenue

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1.75%

'

'

'

'

'

'

'

'

'

'

'

'

'

License fee cap

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

25

'

'

'

'

'

'

'

'

'

'

'

'

Per annum percentage increase in development fee annual cap

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

10.00%

'

'

20.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

License fee initial year annual cap

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

36

30

15

'

'

'

'

'

'

'

'

'

License fee initial year prorated annual cap

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

15

'

'

'

'

'

'

'

'

'

'

'

Development fee as percentage of project cost

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2.63%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Development fee

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0

15

6

20

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Distribution made to noncontrolling interests

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

18

11

4

Aggregate principal amount of notes issued

'

'

'

'

'

'

'

'

'

'

'

$1,450

$1,450

'

'

$300

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Interest rate of debt (as a percent)

'

'

'

'

'

'

'

'

'

'

'

4.25%

4.25%

4.25%

4.25%

4.25%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Consolidating_Condensed_Financ2

Consolidating Condensed Financial Information - Schedule of Condensed Consolidating Balance Sheet Information (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
In Thousands, unless otherwise specified
Condensed Financial Statements, Captions [Line Items]	'	'	'	'
Current assets	$2,719,439	$2,507,092	'	'
Property and equipment, net	14,055,212	14,194,652	'	'
Investments in subsidiaries	'	'	'	'
Investments in and advances to unconsolidated affiliates	1,374,836	1,444,547	'	'
Other non-current assets	7,960,698	8,138,447	'	'
Total assets	26,110,185	26,284,738	'	'
Current liabilities	2,215,328	1,925,671	'	'
Intercompany accounts	'	'	'	'
Deferred income taxes	2,430,414	2,473,889	'	'
Long-term debt	13,447,230	13,589,283	'	'
Other long-term obligations	141,590	179,879	'	'
Total liabilities	18,234,562	18,168,722	'	'
MGM Resorts International stockholders' equity	4,231,179	4,365,548	'	'
Noncontrolling interests	3,644,444	3,750,468	'	'
Total stockholders' equity	7,875,623	8,116,016	9,882,222	2,932,162
Total liabilities and stockholders' equity	26,110,185	26,284,738	'	'
Parent [Member]	'	'	'	'
Condensed Financial Statements, Captions [Line Items]	'	'	'	'
Current assets	494,296	438,878	'	'
Property and equipment, net	'	'	'	'
Investments in subsidiaries	20,017,270	19,785,312	'	'
Investments in and advances to unconsolidated affiliates	'	'	'	'
Other non-current assets	167,552	163,372	'	'
Total assets	20,679,118	20,387,562	'	'
Current liabilities	340,343	272,138	'	'
Intercompany accounts	1,446,952	960,610	'	'
Deferred income taxes	2,120,676	2,222,823	'	'
Long-term debt	12,441,112	12,432,581	'	'
Other long-term obligations	98,856	133,862	'	'
Total liabilities	16,447,939	16,022,014	'	'
MGM Resorts International stockholders' equity	4,231,179	4,365,548	'	'
Noncontrolling interests	'	'	'	'
Total stockholders' equity	4,231,179	4,365,548	'	'
Total liabilities and stockholders' equity	20,679,118	20,387,562	'	'
Guarantor Subsidiaries [Member]	'	'	'	'
Condensed Financial Statements, Captions [Line Items]	'	'	'	'
Current assets	903,537	891,826	'	'
Property and equipment, net	12,552,828	12,881,152	'	'
Investments in subsidiaries	4,037,168	4,077,228	'	'
Investments in and advances to unconsolidated affiliates	1,367,071	1,437,151	'	'
Other non-current assets	542,259	541,634	'	'
Total assets	19,402,863	19,828,991	'	'
Current liabilities	959,118	989,864	'	'
Intercompany accounts	-1,470,305	-983,288	'	'
Deferred income taxes	'	'	'	'
Long-term debt	4,836	155,413	'	'
Other long-term obligations	41,758	45,303	'	'
Total liabilities	-464,593	207,292	'	'
MGM Resorts International stockholders' equity	19,867,456	19,621,699	'	'
Noncontrolling interests	'	'	'	'
Total stockholders' equity	19,867,456	19,621,699	'	'
Total liabilities and stockholders' equity	19,402,863	19,828,991	'	'
Non-Guarantor Subsidiaries [Member]	'	'	'	'
Condensed Financial Statements, Captions [Line Items]	'	'	'	'
Current assets	1,322,170	1,176,844	'	'
Property and equipment, net	1,514,356	1,325,472	'	'
Investments in subsidiaries	'	'	'	'
Investments in and advances to unconsolidated affiliates	7,765	7,396	'	'
Other non-current assets	7,250,887	7,433,441	'	'
Total assets	10,095,178	9,943,153	'	'
Current liabilities	941,431	672,125	'	'
Intercompany accounts	23,353	22,678	'	'
Deferred income taxes	309,738	251,066	'	'
Long-term debt	1,001,282	1,001,289	'	'
Other long-term obligations	976	714	'	'
Total liabilities	2,276,780	1,947,872	'	'
MGM Resorts International stockholders' equity	4,173,954	4,244,813	'	'
Noncontrolling interests	3,644,444	3,750,468	'	'
Total stockholders' equity	7,818,398	7,995,281	'	'
Total liabilities and stockholders' equity	10,095,178	9,943,153	'	'
Eliminated in consolidation [Member]	'	'	'	'
Condensed Financial Statements, Captions [Line Items]	'	'	'	'
Current assets	-564	-456	'	'
Property and equipment, net	-11,972	-11,972	'	'
Investments in subsidiaries	-24,054,438	-23,862,540	'	'
Investments in and advances to unconsolidated affiliates	'	'	'	'
Other non-current assets	'	'	'	'
Total assets	-24,066,974	-23,874,968	'	'
Current liabilities	-25,564	-8,456	'	'
Intercompany accounts	'	'	'	'
Deferred income taxes	'	'	'	'
Long-term debt	'	'	'	'
Other long-term obligations	'	'	'	'
Total liabilities	-25,564	-8,456	'	'
MGM Resorts International stockholders' equity	-24,041,410	-23,866,512	'	'
Noncontrolling interests	'	'	'	'
Total stockholders' equity	-24,041,410	-23,866,512	'	'
Total liabilities and stockholders' equity	($24,066,974)	($23,874,968)	'	'

Condensed_Consolidating_Financ

Condensed Consolidating Financial Information - Schedule of Condensed Consolidating Statement of Operations and Comprehensive Income Information (Detail) (USD $)	3 Months Ended								12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Condensed Financial Statements, Captions [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Net revenues	$2,513,213	$2,463,037	$2,481,265	$2,352,148	$2,294,511	$2,254,978	$2,323,765	$2,287,590	$9,809,663	$9,160,844	$7,849,312
Equity in subsidiaries' earnings	'	'	'	'	'	'	'	'	'	'	'
Expenses:	'	'	'	'	'	'	'	'	'	'	'
Casino and hotel operations	'	'	'	'	'	'	'	'	6,258,716	5,921,282	5,026,361
General and administrative	'	'	'	'	'	'	'	'	1,278,450	1,239,774	1,182,505
Corporate expense	'	'	'	'	'	'	'	'	216,745	235,007	174,971
Preopening and start-up expenses	'	'	'	'	'	'	'	'	13,314	2,127	-316
Property transactions, net	'	'	'	'	'	'	'	'	124,761	708,049	178,598
Gain on MGM China transaction	'	'	'	'	'	'	'	'	'	'	-3,496,005
Depreciation and amortization	'	'	'	'	'	'	'	'	849,225	927,697	817,146
Total expenses	'	'	'	'	'	'	'	'	8,741,211	9,033,936	3,883,260
Income (loss) from unconsolidated affiliates	'	'	'	'	'	'	'	'	43,060	-46,382	91,094
Operating income	330,330	247,763	231,602	301,817	-424,856	137,401	175,375	192,606	1,111,512	80,526	4,057,146
Interest expense, net of amounts capitalized	'	'	'	'	'	'	'	'	-857,347	-1,116,358	-1,086,832
Other, net	'	'	'	'	'	'	'	'	-166,400	-698,381	-138,683
Income (loss) before income taxes	'	'	'	'	'	'	'	'	87,765	-1,734,213	2,831,631
Benefit (provision) for income taxes	'	'	'	'	'	'	'	'	-31,263	117,301	403,313
Net income (loss)	40,877	23,625	-30,578	22,578	-1,188,497	-154,674	-70,434	-203,307	56,502	-1,616,912	3,234,944
Less: Net income attributable to noncontrolling interests	'	'	'	'	'	'	'	'	-213,108	-150,779	-120,307
Net income (loss) attributable to MGM Resorts International	-38,335	-31,859	-92,958	6,546	-1,223,827	-181,159	-145,452	-217,253	-156,606	-1,767,691	3,114,637
Net income (loss)	40,877	23,625	-30,578	22,578	-1,188,497	-154,674	-70,434	-203,307	56,502	-1,616,912	3,234,944
Other comprehensive income (loss), net of tax	'	'	'	'	'	'	'	'	'	'	'
Foreign currency translation adjustment	'	'	'	'	'	'	'	'	-3,993	17,124	11,692
Other	'	'	'	'	'	'	'	'	115	-445	-37
Other comprehensive income (loss)	'	'	'	'	'	'	'	'	-3,878	16,679	11,655
Comprehensive income (loss)	'	'	'	'	'	'	'	'	52,624	-1,600,233	3,246,599
Less: comprehensive income attributable to noncontrolling interests	'	'	'	'	'	'	'	'	-211,030	-159,133	-125,683
Comprehensive income (loss) attributable to MGM Resorts International	'	'	'	'	'	'	'	'	-158,406	-1,759,366	3,120,916
Parent [Member]	'	'	'	'	'	'	'	'	'	'	'
Condensed Financial Statements, Captions [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Net revenues	'	'	'	'	'	'	'	'	'	'	'
Equity in subsidiaries' earnings	'	'	'	'	'	'	'	'	663,605	-210,934	3,899,017
Expenses:	'	'	'	'	'	'	'	'	'	'	'
Casino and hotel operations	'	'	'	'	'	'	'	'	5,644	7,623	10,030
General and administrative	'	'	'	'	'	'	'	'	4,432	7,101	7,613
Corporate expense	'	'	'	'	'	'	'	'	66,307	66,285	69,958
Preopening and start-up expenses	'	'	'	'	'	'	'	'	'	'	'
Property transactions, net	'	'	'	'	'	'	'	'	'	'	'
Gain on MGM China transaction	'	'	'	'	'	'	'	'	'	'	'
Depreciation and amortization	'	'	'	'	'	'	'	'	'	'	'
Total expenses	'	'	'	'	'	'	'	'	76,383	81,009	87,601
Income (loss) from unconsolidated affiliates	'	'	'	'	'	'	'	'	'	'	'
Operating income	'	'	'	'	'	'	'	'	587,222	-291,943	3,811,416
Interest expense, net of amounts capitalized	'	'	'	'	'	'	'	'	-805,933	-1,053,692	-1,023,090
Other, net	'	'	'	'	'	'	'	'	39,524	-526,606	26,608
Income (loss) before income taxes	'	'	'	'	'	'	'	'	-179,187	-1,872,241	2,814,934
Benefit (provision) for income taxes	'	'	'	'	'	'	'	'	22,581	104,550	299,703
Net income (loss)	'	'	'	'	'	'	'	'	-156,606	-1,767,691	3,114,637
Less: Net income attributable to noncontrolling interests	'	'	'	'	'	'	'	'	'	'	'
Net income (loss) attributable to MGM Resorts International	'	'	'	'	'	'	'	'	-156,606	-1,767,691	3,114,637
Net income (loss)	'	'	'	'	'	'	'	'	-156,606	-1,767,691	3,114,637
Other comprehensive income (loss), net of tax	'	'	'	'	'	'	'	'	'	'	'
Foreign currency translation adjustment	'	'	'	'	'	'	'	'	-1,915	8,770	6,316
Other	'	'	'	'	'	'	'	'	115	-445	-37
Other comprehensive income (loss)	'	'	'	'	'	'	'	'	-1,800	8,325	6,279
Comprehensive income (loss)	'	'	'	'	'	'	'	'	-158,406	-1,759,366	3,120,916
Less: comprehensive income attributable to noncontrolling interests	'	'	'	'	'	'	'	'	'	'	'
Comprehensive income (loss) attributable to MGM Resorts International	'	'	'	'	'	'	'	'	-158,406	-1,759,366	3,120,916
Guarantor Subsidiaries [Member]	'	'	'	'	'	'	'	'	'	'	'
Condensed Financial Statements, Captions [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Net revenues	'	'	'	'	'	'	'	'	5,955,001	5,782,523	5,745,417
Equity in subsidiaries' earnings	'	'	'	'	'	'	'	'	289,384	220,354	3,761,538
Expenses:	'	'	'	'	'	'	'	'	'	'	'
Casino and hotel operations	'	'	'	'	'	'	'	'	3,622,940	3,615,288	3,610,357
General and administrative	'	'	'	'	'	'	'	'	1,051,757	1,025,028	1,015,923
Corporate expense	'	'	'	'	'	'	'	'	125,500	168,863	104,457
Preopening and start-up expenses	'	'	'	'	'	'	'	'	4,205	1,486	-316
Property transactions, net	'	'	'	'	'	'	'	'	126,773	704,762	176,063
Gain on MGM China transaction	'	'	'	'	'	'	'	'	'	'	'
Depreciation and amortization	'	'	'	'	'	'	'	'	522,900	519,074	556,538
Total expenses	'	'	'	'	'	'	'	'	5,454,075	6,034,501	5,463,022
Income (loss) from unconsolidated affiliates	'	'	'	'	'	'	'	'	43,038	-46,443	-24,096
Operating income	'	'	'	'	'	'	'	'	833,348	-78,067	4,019,837
Interest expense, net of amounts capitalized	'	'	'	'	'	'	'	'	-6,333	-10,986	-18,882
Other, net	'	'	'	'	'	'	'	'	-160,721	-137,201	-114,842
Income (loss) before income taxes	'	'	'	'	'	'	'	'	666,294	-226,254	3,886,113
Benefit (provision) for income taxes	'	'	'	'	'	'	'	'	11,111	1,892	-18
Net income (loss)	'	'	'	'	'	'	'	'	677,405	-224,362	3,886,095
Less: Net income attributable to noncontrolling interests	'	'	'	'	'	'	'	'	'	'	'
Net income (loss) attributable to MGM Resorts International	'	'	'	'	'	'	'	'	677,405	-224,362	3,886,095
Net income (loss)	'	'	'	'	'	'	'	'	677,405	-224,362	3,886,095
Other comprehensive income (loss), net of tax	'	'	'	'	'	'	'	'	'	'	'
Foreign currency translation adjustment	'	'	'	'	'	'	'	'	-1,915	8,770	6,316
Other	'	'	'	'	'	'	'	'	115	-445	-37
Other comprehensive income (loss)	'	'	'	'	'	'	'	'	-1,800	8,325	6,279
Comprehensive income (loss)	'	'	'	'	'	'	'	'	675,605	-216,037	3,892,374
Less: comprehensive income attributable to noncontrolling interests	'	'	'	'	'	'	'	'	'	'	'
Comprehensive income (loss) attributable to MGM Resorts International	'	'	'	'	'	'	'	'	675,605	-216,037	3,892,374
Non-Guarantor Subsidiaries [Member]	'	'	'	'	'	'	'	'	'	'	'
Condensed Financial Statements, Captions [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Net revenues	'	'	'	'	'	'	'	'	3,856,728	3,379,891	2,106,195
Equity in subsidiaries' earnings	'	'	'	'	'	'	'	'	'	'	'
Expenses:	'	'	'	'	'	'	'	'	'	'	'
Casino and hotel operations	'	'	'	'	'	'	'	'	2,632,198	2,299,941	1,408,274
General and administrative	'	'	'	'	'	'	'	'	222,261	207,645	158,969
Corporate expense	'	'	'	'	'	'	'	'	41,938	7,859	556
Preopening and start-up expenses	'	'	'	'	'	'	'	'	9,109	641	'
Property transactions, net	'	'	'	'	'	'	'	'	-2,012	3,287	2,535
Gain on MGM China transaction	'	'	'	'	'	'	'	'	'	'	-3,496,005
Depreciation and amortization	'	'	'	'	'	'	'	'	326,325	408,623	260,608
Total expenses	'	'	'	'	'	'	'	'	3,229,819	2,927,996	-1,665,063
Income (loss) from unconsolidated affiliates	'	'	'	'	'	'	'	'	22	61	115,190
Operating income	'	'	'	'	'	'	'	'	626,931	451,956	3,886,448
Interest expense, net of amounts capitalized	'	'	'	'	'	'	'	'	-45,081	-51,680	-44,860
Other, net	'	'	'	'	'	'	'	'	-45,203	-34,574	-50,449
Income (loss) before income taxes	'	'	'	'	'	'	'	'	536,647	365,702	3,791,139
Benefit (provision) for income taxes	'	'	'	'	'	'	'	'	-64,955	10,859	103,628
Net income (loss)	'	'	'	'	'	'	'	'	471,692	376,561	3,894,767
Less: Net income attributable to noncontrolling interests	'	'	'	'	'	'	'	'	-213,108	-150,779	-120,307
Net income (loss) attributable to MGM Resorts International	'	'	'	'	'	'	'	'	258,584	225,782	3,774,460
Net income (loss)	'	'	'	'	'	'	'	'	471,692	376,561	3,894,767
Other comprehensive income (loss), net of tax	'	'	'	'	'	'	'	'	'	'	'
Foreign currency translation adjustment	'	'	'	'	'	'	'	'	-3,993	17,124	11,692
Other	'	'	'	'	'	'	'	'	'	'	'
Other comprehensive income (loss)	'	'	'	'	'	'	'	'	-3,993	17,124	11,692
Comprehensive income (loss)	'	'	'	'	'	'	'	'	467,699	393,685	3,906,459
Less: comprehensive income attributable to noncontrolling interests	'	'	'	'	'	'	'	'	-211,030	-159,133	-125,683
Comprehensive income (loss) attributable to MGM Resorts International	'	'	'	'	'	'	'	'	256,669	234,552	3,780,776
Eliminated in consolidation [Member]	'	'	'	'	'	'	'	'	'	'	'
Condensed Financial Statements, Captions [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Net revenues	'	'	'	'	'	'	'	'	-2,066	-1,570	-2,300
Equity in subsidiaries' earnings	'	'	'	'	'	'	'	'	-952,989	-9,420	-7,660,555
Expenses:	'	'	'	'	'	'	'	'	'	'	'
Casino and hotel operations	'	'	'	'	'	'	'	'	-2,066	-1,570	-2,300
General and administrative	'	'	'	'	'	'	'	'	'	'	'
Corporate expense	'	'	'	'	'	'	'	'	-17,000	-8,000	'
Preopening and start-up expenses	'	'	'	'	'	'	'	'	'	'	'
Property transactions, net	'	'	'	'	'	'	'	'	'	'	'
Depreciation and amortization	'	'	'	'	'	'	'	'	'	'	'
Total expenses	'	'	'	'	'	'	'	'	-19,066	-9,570	-2,300
Income (loss) from unconsolidated affiliates	'	'	'	'	'	'	'	'	'	'	'
Operating income	'	'	'	'	'	'	'	'	-935,989	-1,420	-7,660,555
Interest expense, net of amounts capitalized	'	'	'	'	'	'	'	'	'	'	'
Other, net	'	'	'	'	'	'	'	'	'	'	'
Income (loss) before income taxes	'	'	'	'	'	'	'	'	-935,989	-1,420	-7,660,555
Benefit (provision) for income taxes	'	'	'	'	'	'	'	'	'	'	'
Net income (loss)	'	'	'	'	'	'	'	'	-935,989	-1,420	-7,660,555
Less: Net income attributable to noncontrolling interests	'	'	'	'	'	'	'	'	'	'	'
Net income (loss) attributable to MGM Resorts International	'	'	'	'	'	'	'	'	-935,989	-1,420	-7,660,555
Net income (loss)	'	'	'	'	'	'	'	'	-935,989	-1,420	-7,660,555
Other comprehensive income (loss), net of tax	'	'	'	'	'	'	'	'	'	'	'
Foreign currency translation adjustment	'	'	'	'	'	'	'	'	3,830	-17,540	-12,632
Other	'	'	'	'	'	'	'	'	-115	445	37
Other comprehensive income (loss)	'	'	'	'	'	'	'	'	3,715	-17,095	-12,595
Comprehensive income (loss)	'	'	'	'	'	'	'	'	-932,274	-18,515	-7,673,150
Less: comprehensive income attributable to noncontrolling interests	'	'	'	'	'	'	'	'	'	'	'
Comprehensive income (loss) attributable to MGM Resorts International	'	'	'	'	'	'	'	'	($932,274)	($18,515)	($7,673,150)

Condensed_Consolidating_Financ1

Condensed Consolidating Financial Information - Schedule of Condensed Consolidating Statement of Cash Flows Information (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Cash flows from operating activities	'	'	'
Net cash provided by (used in) operating activities	$1,310,448	$909,351	$675,126
Cash flows from investing activities	'	'	'
Capital expenditures, net of construction payable	-562,124	-422,763	-301,244
Dispositions of property and equipment	18,030	426	348
Acquisition of MGM China, net of cash paid	'	'	407,046
Investments in and advances to unconsolidated affiliates	-28,953	-54,300	-128,848
Distributions from unconsolidated affiliates in excess of earnings	110	1,723	2,212
Investments in treasury securities - maturities longer than 90 days	-219,546	-285,469	-330,313
Proceeds from treasury securities - maturities longer than 90 days	252,592	315,438	330,130
Other	-20,246	-1,472	-643
Net cash provided by (used in) investing activities	-560,137	-446,417	-21,312
Cash flows from financing activities	'	'	'
Net borrowings (repayments) under bank credit facilities - maturities of 90 days or less	-28,000	1,779,262	-305,880
Borrowings under bank credit facilities - maturities longer than 90 days	2,793,000	1,350,000	7,559,112
Repayments under bank credit facilities - maturities longer than 90 days	-2,793,000	-3,634,128	-6,352,384
Issuance of senior notes	500,000	4,100,000	311,415
Retirement of senior notes, including premiums paid	-612,262	-4,009,117	-493,816
Debt issuance costs	-23,576	-160,245	'
Intercompany accounts	'	'	'
Distributions to noncontrolling interest owners	-318,348	-206,806	-3,768
Other	-7,522	-5,925	-2,757
Net cash provided by (used in) financing activities	-489,708	-786,959	711,922
Effect of exchange rate on cash	-443	1,621	1,213
Cash and cash equivalents	'	'	'
Net increase (decrease) for the period	260,160	-322,404	1,366,949
Balance, beginning of period	1,543,509	1,865,913	498,964
Balance, end of period	1,803,669	1,543,509	1,865,913
Parent [Member]	'	'	'
Cash flows from operating activities	'	'	'
Net cash provided by (used in) operating activities	-819,282	-952,653	-716,556
Cash flows from investing activities	'	'	'
Capital expenditures, net of construction payable	'	'	'
Dispositions of property and equipment	'	'	'
Acquisition of MGM China, net of cash paid	'	'	'
Investments in and advances to unconsolidated affiliates	-23,600	-46,800	-92,200
Distributions from unconsolidated affiliates in excess of earnings	'	'	'
Investments in treasury securities - maturities longer than 90 days	'	'	'
Proceeds from treasury securities - maturities longer than 90 days	'	'	'
Other	'	-1,973	'
Net cash provided by (used in) investing activities	-23,600	-48,773	-92,200
Cash flows from financing activities	'	'	'
Net borrowings (repayments) under bank credit facilities - maturities of 90 days or less	-28,000	1,331,500	167,391
Borrowings under bank credit facilities - maturities longer than 90 days	2,343,000	'	5,826,993
Repayments under bank credit facilities - maturities longer than 90 days	-2,343,000	-1,834,128	-5,002,384
Issuance of senior notes	500,000	4,100,000	311,415
Retirement of senior notes, including premiums paid	-462,226	-4,009,117	-356,700
Debt issuance costs	-23,576	-119,197	'
Intercompany accounts	985,465	996,462	586,331
Distributions to noncontrolling interest owners	'	'	'
Other	-4,506	-5,035	-1,421
Net cash provided by (used in) financing activities	967,157	460,485	1,531,625
Effect of exchange rate on cash	'	'	'
Cash and cash equivalents	'	'	'
Net increase (decrease) for the period	124,275	-540,941	722,869
Balance, beginning of period	254,385	795,326	72,457
Balance, end of period	378,660	254,385	795,326
Guarantor Subsidiaries [Member]	'	'	'
Cash flows from operating activities	'	'	'
Net cash provided by (used in) operating activities	1,089,341	989,144	918,628
Cash flows from investing activities	'	'	'
Capital expenditures, net of construction payable	-311,635	-332,089	-263,469
Dispositions of property and equipment	11,648	191	147
Acquisition of MGM China, net of cash paid	'	'	'
Investments in and advances to unconsolidated affiliates	-5,353	-7,500	-36,648
Distributions from unconsolidated affiliates in excess of earnings	110	1,723	2,212
Investments in treasury securities - maturities longer than 90 days	-219,546	-285,469	-330,313
Proceeds from treasury securities - maturities longer than 90 days	252,592	315,438	330,130
Other	1,354	501	-643
Net cash provided by (used in) investing activities	-270,830	-307,205	-298,584
Cash flows from financing activities	'	'	'
Net borrowings (repayments) under bank credit facilities - maturities of 90 days or less	'	'	'
Borrowings under bank credit facilities - maturities longer than 90 days	'	'	'
Repayments under bank credit facilities - maturities longer than 90 days	'	'	'
Issuance of senior notes	'	'	'
Retirement of senior notes, including premiums paid	-150,036	'	-137,116
Debt issuance costs	'	'	'
Intercompany accounts	-657,260	-685,752	-529,578
Distributions to noncontrolling interest owners	'	'	'
Other	'	-833	-1,263
Net cash provided by (used in) financing activities	-807,296	-686,585	-667,957
Effect of exchange rate on cash	'	'	'
Cash and cash equivalents	'	'	'
Net increase (decrease) for the period	11,215	-4,646	-47,913
Balance, beginning of period	226,242	230,888	278,801
Balance, end of period	237,457	226,242	230,888
Non-Guarantor Subsidiaries [Member]	'	'	'
Cash flows from operating activities	'	'	'
Net cash provided by (used in) operating activities	1,040,389	872,860	473,054
Cash flows from investing activities	'	'	'
Capital expenditures, net of construction payable	-250,489	-90,674	-37,775
Dispositions of property and equipment	6,382	235	201
Acquisition of MGM China, net of cash paid	'	'	407,046
Investments in and advances to unconsolidated affiliates	'	'	'
Distributions from unconsolidated affiliates in excess of earnings	'	'	'
Investments in treasury securities - maturities longer than 90 days	'	'	'
Proceeds from treasury securities - maturities longer than 90 days	'	'	'
Other	-21,600	'	'
Net cash provided by (used in) investing activities	-265,707	-90,439	369,472
Cash flows from financing activities	'	'	'
Net borrowings (repayments) under bank credit facilities - maturities of 90 days or less	'	447,762	-473,271
Borrowings under bank credit facilities - maturities longer than 90 days	450,000	1,350,000	1,732,119
Repayments under bank credit facilities - maturities longer than 90 days	-450,000	-1,800,000	-1,350,000
Issuance of senior notes	'	'	'
Retirement of senior notes, including premiums paid	'	'	'
Debt issuance costs	'	-41,048	'
Intercompany accounts	-328,205	-310,710	-56,753
Distributions to noncontrolling interest owners	-318,348	-206,806	-3,768
Other	-3,016	-57	-73
Net cash provided by (used in) financing activities	-649,569	-560,859	-151,746
Effect of exchange rate on cash	-443	1,621	1,213
Cash and cash equivalents	'	'	'
Net increase (decrease) for the period	124,670	223,183	691,993
Balance, beginning of period	1,062,882	839,699	147,706
Balance, end of period	1,187,552	1,062,882	839,699
Eliminated in consolidation [Member]	'	'	'
Cash flows from operating activities	'	'	'
Net cash provided by (used in) operating activities	'	'	'
Cash flows from investing activities	'	'	'
Capital expenditures, net of construction payable	'	'	'
Dispositions of property and equipment	'	'	'
Acquisition of MGM China, net of cash paid	'	'	'
Investments in and advances to unconsolidated affiliates	'	'	'
Distributions from unconsolidated affiliates in excess of earnings	'	'	'
Investments in treasury securities - maturities longer than 90 days	'	'	'
Proceeds from treasury securities - maturities longer than 90 days	'	'	'
Other	'	'	'
Net cash provided by (used in) investing activities	'	'	'
Cash flows from financing activities	'	'	'
Net borrowings (repayments) under bank credit facilities - maturities of 90 days or less	'	'	'
Borrowings under bank credit facilities - maturities longer than 90 days	'	'	'
Repayments under bank credit facilities - maturities longer than 90 days	'	'	'
Issuance of senior notes	'	'	'
Retirement of senior notes, including premiums paid	'	'	'
Debt issuance costs	'	'	'
Intercompany accounts	'	'	'
Distributions to noncontrolling interest owners	'	'	'
Other	'	'	'
Net cash provided by (used in) financing activities	'	'	'
Effect of exchange rate on cash	'	'	'
Cash and cash equivalents	'	'	'
Net increase (decrease) for the period	'	'	'
Balance, beginning of period	'	'	'
Balance, end of period	'	'	'

Selected_Quarterly_Financial_R2

Selected Quarterly Financial Results (Unaudited) - Schedule of Selected Quarterly Financial Results (Detail) (USD $)	3 Months Ended								12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Quarterly Financial Information Disclosure [Abstract]	'	'	'	'	'	'	'	'	'	'	'
Net revenues	$2,513,213	$2,463,037	$2,481,265	$2,352,148	$2,294,511	$2,254,978	$2,323,765	$2,287,590	$9,809,663	$9,160,844	$7,849,312
Operating income	330,330	247,763	231,602	301,817	-424,856	137,401	175,375	192,606	1,111,512	80,526	4,057,146
Net income (loss)	40,877	23,625	-30,578	22,578	-1,188,497	-154,674	-70,434	-203,307	56,502	-1,616,912	3,234,944
Net income (loss) attributable to MGM Resorts International	($38,335)	($31,859)	($92,958)	$6,546	($1,223,827)	($181,159)	($145,452)	($217,253)	($156,606)	($1,767,691)	$3,114,637
Basic income (loss) per share	($0.08)	($0.07)	($0.19)	$0.01	($2.50)	($0.37)	($0.30)	($0.44)	($0.32)	($3.62)	$6.37
Diluted income (loss) per share	($0.08)	($0.07)	($0.19)	$0.01	($2.50)	($0.37)	($0.30)	($0.44)	($0.32)	($3.62)	$5.62

Selected_Quarterly_Financial_R3

Selected Quarterly Financial Results - Additional Information (Detail) (USD $)

3 Months Ended

12 Months Ended

3 Months Ended

12 Months Ended

3 Months Ended

0 Months Ended

3 Months Ended

12 Months Ended

3 Months Ended

3 Months Ended

12 Months Ended

3 Months Ended

12 Months Ended

3 Months Ended

12 Months Ended

3 Months Ended

12 Months Ended

3 Months Ended

12 Months Ended

3 Months Ended

12 Months Ended

Jun. 30, 2013

Dec. 31, 2012

Mar. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2012

Dec. 31, 2012

Dec. 31, 2011

Jun. 30, 2013

Jun. 30, 2013

Jun. 30, 2012

Jun. 30, 2013

Jun. 30, 2012

Dec. 31, 2013

Dec. 31, 2012

Sep. 30, 2013

Dec. 31, 2013

Mar. 31, 2012

Dec. 31, 2012

Sep. 30, 2012

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2011

Dec. 31, 2012

Dec. 31, 2012

Dec. 31, 2012

Dec. 31, 2012

Dec. 31, 2012

Sep. 30, 2012

Dec. 31, 2012

Dec. 31, 2012

Dec. 31, 2012

Borgata Trust [Member]

Borgata Trust [Member]

Borgata Trust [Member]

Corporate Buildings [Member]

Grand Victoria [Member]

Grand Victoria [Member]

Grand Victoria [Member]

Grand Victoria [Member]

Grand Victoria [Member]

Grand Victoria [Member]

Jean and Sloan, Nevada [Member]

CityCenter Holdings, LLC [Member]

CityCenter Holdings, LLC [Member]

CityCenter Holdings, LLC [Member]

CityCenter Holdings, LLC [Member]

CityCenter Holdings, LLC [Member]

CityCenter Holdings, LLC [Member]

Silver Legacy [Member]

Silver Legacy [Member]

Silver Legacy [Member]

South Jersey Transportation Authority special revenue bonds [Member]

South Jersey Transportation Authority special revenue bonds [Member]

North Las Vegas Strip Land [Member]

North Las Vegas Strip Land [Member]

Harmon [Member]

Harmon [Member]

Atlantic City Land [Member]

Atlantic City Land [Member]

Residential Inventory [Member]

Residential Inventory [Member]

Residential Inventory [Member]

CityCenter Holdings, LLC [Member]

CityCenter Holdings, LLC [Member]

SELECTED QUARTERLY FINANCIAL RESULTS (UNAUDITED)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Impairment charges on equity method investments

'

'

'

'

'

'

'

'

'

'

$37,000,000

$85,000,000

$37,000,000

$85,000,000

$36,607,000

$85,009,000

'

'

'

'

'

'

'

'

$22,966,000

'

'

'

'

'

'

'

'

'

Impact of equity method investment impairment charges on diluted loss per share

'

'

'

'

'

'

'

'

'

'

'

'

$0.05

$0.11

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Asset impairment charges

45,000

'

'

'

'

'

'

'

'

45,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Impact of real estate impairment charges on diluted loss per share

'

'

'

'

'

'

'

'

'

$0.06

'

'

'

'

'

'

$0.03

'

'

'

'

'

'

'

'

'

'

'

$0.48

'

'

'

$0.20

'

Real estate impairment charges

'

'

'

20,354,000

'

'

'

'

'

'

'

'

'

'

'

'

26,000,000

'

'

'

'

36,000,000

53,000,000

'

'

'

'

'

366,000,000

366,406,000

'

'

167,000,000

166,569,000

Share of (gain) loss on retirement of debt

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

70,000,000

4,000,000

'

'

'

'

-12,000,000

'

'

'

'

'

'

'

'

'

'

Impact of loss on retirement of debt on diluted loss per share

'

$0.67

$0.08

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$0.09

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Gain on retirement of debt, per share

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$0.02

'

'

'

'

'

'

'

'

'

'

(Gain) loss on retirement of long-term debt

'

505,000,000

59,000,000

3,801,000

563,292,000

-717,000

'

'

'

'

'

'

'

'

'

'

'

70,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Percentage of ownership interests

'

'

'

'

'

'

'

'

'

'

50.00%

50.00%

50.00%

50.00%

'

'

'

50.00%

50.00%

50.00%

50.00%

50.00%

50.00%

50.00%

'

50.00%

'

'

'

'

50.00%

50.00%

'

'

Impact of share of loss on retirement of debt on diluted earnings per share

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$0.01

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Real estate impairment charges of unconsolidated affiliates

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

18,000,000

18,000,000

26,000,000

'

'

'

'

'

'

'

'

'

'

'

Impact of share of real estate impairment charges of unconsolidated affiliates on diluted loss per share

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$0.02

'

'

'

'

'

'

'

'

'

'

'

'

'

Share of demolition cost

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

16,000,000

16,000,000

'

'

Impact of share of demolition cost on diluted loss per share

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$0.02

'

'

'

Impairment charges on cost method investments

'

'

'

'

'

'

65,000,000

65,000,000

61,962,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Impact of cost method investment impairment charges on diluted loss per share

'

'

'

'

'

'

$0.09

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Impairment of owned investment

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$47,000,000

$47,000,000

'

'

'

'

'

'

Impact of impairment of investment holding on diluted earnings per share

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$0.06

'

'

'

'

'

'

'

Schedule_II_Valuation_and_Qual1

Schedule II - Valuation and Qualifying Accounts (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Allowance for doubtful accounts [Member]	'	'	'
Movement in Valuation Allowances and Reserves [Roll Forward]	'	'	'
Balance at Beginning of Period	$97,911	$101,207	$93,760
Addition of MGM China	'	'	40,741
Provision for Doubtful Accounts / Increase	14,969	57,068	39,093
Write-offs, Net of Recoveries	-31,167	-60,364	-72,387
Balance at End of Period	81,713	97,911	101,207
Deferred income tax valuation allowance [Member]	'	'	'
Movement in Valuation Allowances and Reserves [Roll Forward]	'	'	'
Balance at Beginning of Period	1,093,398	72,001	35,724
Provision for Doubtful Accounts / Increase	633,423	1,023,644	68,325
Decrease	-4,904	-2,247	-32,048
Balance at End of Period	$1,721,917	$1,093,398	$72,001