Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Revenues
Revenues	$ 289,809	$ 3,223,243	$ 2,542,626	$ 6,400,154
Expenses
General and administrative	473,564	524,424	1,047,870	1,049,536
Corporate expense	142,578	108,061	286,386	237,497
Preopening and start-up expenses	(82)	879	40	4,166
Property transactions, net	26,349	5,790	81,324	14,566
Gain on REIT transactions, net	0	0	(1,491,945)	0
Depreciation and amortization	299,206	334,788	617,496	651,202
Total expenses	1,315,985	2,878,762	2,353,705	5,724,162
Income (loss) from unconsolidated affiliates	(8,353)	27,004	27,395	65,753
Operating income (loss)	(1,034,529)	371,485	216,316	741,745
Non-operating income (expense)
Interest expense, net of amounts capitalized	(156,756)	(215,829)	(313,893)	(431,949)
Non-operating items from unconsolidated affiliates	(23,761)	(21,477)	(56,382)	(39,642)
Other, net	8,321	(46,276)	(115,943)	(44,583)
Total non-operating income (expense)	(172,196)	(283,582)	(486,218)	(516,174)
Income (loss) before income taxes	(1,206,725)	87,903	(269,902)	225,571
Benefit (provision) for income taxes	270,238	(11,734)	7,934	(83,245)
Net income (loss)	(936,487)	76,169	(261,968)	142,326
Less: Net (income) loss attributable to noncontrolling interests	79,230	(32,764)	211,580	(67,624)
Net income (loss) attributable to MGM Resorts International	$ (857,257)	$ 43,405	$ (50,388)	$ 74,702
Net income (loss) per share of common stock attributable to MGM Resorts International
Basic	$ (1.67)	$ 0.08	$ (0.02)	$ 0.13
Diluted	$ (1.67)	$ 0.08	$ (0.02)	$ 0.13
Weighted average common shares outstanding
Basic	493,456	532,365	494,434	533,286
Diluted	493,456	535,417	494,434	536,456
Casino [Member]
Revenues
Revenues	$ 163,649	$ 1,598,312	$ 1,217,675	$ 3,224,658
Expenses
Expenses	200,393	888,392	829,063	1,791,149
Rooms [Member]
Revenues
Revenues	31,623	586,503	465,574	1,160,718
Expenses
Expenses	41,251	208,643	213,860	412,637
Food and Beverage [Member]
Revenues
Revenues	29,771	544,552	426,480	1,064,773
Expenses
Expenses	60,306	426,664	399,942	826,903
Entertainment, Retail and Other [Member]
Revenues
Revenues	48,569	382,738	318,514	727,112
Expenses
Expenses	56,223	269,983	255,286	513,613
Reimbursed Costs [Member]
Revenues
Revenues	16,197	111,138	114,383	222,893
Expenses
Expenses	$ 16,197	$ 111,138	$ 114,383	$ 222,893

Corporate income expense.

No definition available.

Name:	mgm_CorporateIncomeExpense
Namespace Prefix:	mgm_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

This item represents the entity's proportionate share for the period of the operating income (loss) of its investees (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied, excluding pre-opening expenses. Such amount typically reflects adjustments to eliminate intercompany gains and losses, and to amortize, if appropriate, any difference between cost and underlying equity in net assets of the investee at the date of investment.

+ References

No definition available.