XML 49 R32.htm IDEA: XBRL DOCUMENT
v3.22.1

ORGANIZATION - Pending Transactions (Detail) kr / shares in Units, kr in Millions, MOP$ in Millions, $ in Millions |  |  |  | 3 Months Ended |
--- | --- | --- | --- | --- | ---
Mar. 11, 2022 USD ($) | Mar. 11, 2022 MOP (MOP$) | Dec. 13, 2021 USD ($) | Sep. 26, 2021 USD ($) vote | Mar. 31, 2022 property | May 02, 2022 USD ($) | May 02, 2022 SEK (kr) kr / shares
Extension Agreement | M G M Grand Paradise |  |  |  |  |  |  |
Organization Disclosure [Line Items] |  |  |  |  |  |  |
Contract extension commitment fee | $ 6.0 | MOP$ 47.0 |  |  |  |  |
MGM China |  |  |  |  |  |  |
Organization Disclosure [Line Items] |  |  |  |  |  |  |
Percentage ownership interest |  |  |  |  | 56.00% |  |
Number of integrated casino | property |  |  |  |  | 2 |  |
The Mirage |  |  |  |  |  |  |
Organization Disclosure [Line Items] |  |  |  |  |  |  |
Cash consideration |  |  | $ 1,075.0 |  |  |  |
Decrease in annual rent payments |  |  | $ 90.0 |  |  |  |
Cosmopolitan of Las Vegas |  |  |  |  |  |  |
Organization Disclosure [Line Items] |  |  |  |  |  |  |
Lease agreement initial lease term |  |  |  | 30 years |  |  |
Number of renewal periods, exercisable at option | vote |  |  |  | 3 |  |  |
Lease agreement renewal period |  |  |  | 10 years |  |  |
Annual rent |  |  |  | $ 200.0 |  |  |
Annual rent escalating from year one through year fifteen |  |  |  | 2.00% |  |  |
Annual rent escalator cap after year ten |  |  |  | 3.00% |  |  |
Cosmopolitan of Las Vegas |  |  |  |  |  |  |
Organization Disclosure [Line Items] |  |  |  |  |  |  |
Cash consideration |  |  |  | $ 1,625.0 |  |  |
LeoVegas | Subsequent Event |  |  |  |  |  |  |
Organization Disclosure [Line Items] |  |  |  |  |  |  |
Percentage of shares tendered |  |  |  |  |  | 1 | 1
tender offer prince (dollar and krone per share) | kr / shares |  |  |  |  |  |  | kr 61
Tender offer consideration |  |  |  |  |  | $ 607.0 | kr 6,000
LeoVegas | Subsequent Event | Maximum |  |  |  |  |  |  |
Organization Disclosure [Line Items] |  |  |  |  |  |  |
Percentage of shares tendered |  |  |  |  |  | 0.90 | 0.90

X
- Definition Annual Rent Escalating From Year One Through Year Fifteen + References No definition available. + Details
Name: | mgm_AnnualRentEscalatingFromYearOneThroughYearFifteen
Namespace Prefix: | mgm_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Annual rent escalator cap after year ten. + References No definition available. + Details
Name: | mgm_AnnualRentEscalatorCapAfterYearTen
Namespace Prefix: | mgm_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Contract Extension Commitment Fee + References No definition available. + Details
Name: | mgm_ContractExtensionCommitmentFee
Namespace Prefix: | mgm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Decrease In Annual Rent Payment + References No definition available. + Details
Name: | mgm_DecreaseInAnnualRentPayment
Namespace Prefix: | mgm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Lessee, Operating Lease, Annual Rent Expense + References No definition available. + Details
Name: | mgm_LesseeOperatingLeaseAnnualRentExpense
Namespace Prefix: | mgm_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Number of integrated casino. + References No definition available. + Details
Name: | mgm_NumberOfIntegratedCasino
Namespace Prefix: | mgm_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of renewal periods, exercisable at option. + References No definition available. + Details
Name: | mgm_NumberOfRenewalPeriodsExercisableAtOption
Namespace Prefix: | mgm_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Organization disclosure. + References No definition available. + Details
Name: | mgm_OrganizationDisclosureLineItems
Namespace Prefix: | mgm_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tender Offer Consideration + References No definition available. + Details
Name: | mgm_TenderOfferConsideration
Namespace Prefix: | mgm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Tender Offer, Percentage of Shares Tendered + References No definition available. + Details
Name: | mgm_TenderOfferPercentageOfSharesTendered
Namespace Prefix: | mgm_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant

X
- Definition Tender Offer Share Price + References No definition available. + Details
Name: | mgm_TenderOfferSharePrice
Namespace Prefix: | mgm_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=116859721&loc=d3e6613-128477 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=120321790&loc=d3e6927-128479 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=116859721&loc=d3e6578-128477 + Details
Name: | us-gaap_BusinessCombinationConsiderationTransferred1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Term of lessee's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918673-209980 + Details
Name: | us-gaap_LesseeOperatingLeaseRenewalTerm
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | instant

X
- Definition Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918673-209980 + Details
Name: | us-gaap_LesseeOperatingLeaseTermOfContract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | instant

X
- Definition The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3179-108585 + Details
Name: | us-gaap_ProceedsFromDivestitureOfBusinesses
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Percentage of subsidiary's or equity investee's stock owned by parent company after stock transaction. + References No definition available. + Details
Name: | us-gaap_SaleOfStockPercentageOfOwnershipAfterTransaction
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_TypeOfArrangementAxis=mgm_SubConcessionExtensionContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=mgm_MGMGrandParadiseMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_OwnershipAxis=mgm_MGMChinaHoldingsLimitedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=mgm_TheMirageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=mgm_CosmopolitanOfLasVegasMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=mgm_CosmopolitanOfLasVegasMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=mgm_LeoVegasMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |