XML 64 R47.htm IDEA: XBRL DOCUMENT
v3.22.1

LEASES - Additional Information (Detail) - MGM China | 3 Months Ended
--- | ---
Mar. 31, 2022
M G M Macau |
Leases [Line Items] |
Initial contract term ending year | 25 years
M G M Cotai |
Leases [Line Items] |
Initial contract term ending year | 25 years

X
- Definition Lease Initial Contract Term Ending Year + References No definition available. + Details
Name: | mgm_LeaseInitialContractTermEndingYear
Namespace Prefix: | mgm_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=mgm_MGMChinaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsegmentsAxis=mgm_MGMMacauMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsegmentsAxis=mgm_MGMCotaiMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |