XML 67 R50.htm IDEA: XBRL DOCUMENT
v3.20.2

Stockholders' Equity - Schedule of Changes in Accumulated Other Comprehensive Loss Attributable to MGM Resorts International by Component (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019
Accumulated Other Comprehensive Income Loss [Line Items] |  |  |  |
Beginning Balance | $ 13,332,001 | $ 11,217,865 | $ 12,662,919 | $ 10,469,791
Other comprehensive income (loss) | (6,825) | 82 | (61,575) | (25,646)
Other changes in accumulated other comprehensive income (loss): |  |  |  |
Ending Balance | 12,348,782 | 10,954,721 | 12,348,782 | 10,954,721
MGM Growth Properties LLC [Member] | Class A Shareholders [Member] |  |  |  |
Other changes in accumulated other comprehensive income (loss): |  |  |  |
Share issuances |  | $ 62,199 | 507,551 | $ 591,042
Accumulated Foreign Currency Adjustment Including Portion Attributable to Noncontrolling Interest |  |  |  |
Accumulated Other Comprehensive Income Loss [Line Items] |  |  |  |
Beginning Balance | 13,060 |  | (2,747) |
Other comprehensive income (loss) before reclassifications | 289 |  | 28,625 |
Amounts reclassified from accumulated other comprehensive loss to interest expense | 0 |  | 0 |
Other comprehensive income (loss) | 289 |  | 28,625 |
Other changes in accumulated other comprehensive income (loss): |  |  |  |
Redemption of Operating Partnership units | 0 |  | 0 |
Other | 0 |  | 0 |
Changes in accumulated other comprehensive income (loss): | 289 |  | 28,625 |
Other comprehensive loss (income) attributable to noncontrolling interest | (167) |  | (12,696) |
Ending Balance | 13,182 |  | 13,182 |
Accumulated Foreign Currency Adjustment Including Portion Attributable to Noncontrolling Interest | MGM Growth Properties LLC [Member] | Class A Shareholders [Member] |  |  |  |
Other changes in accumulated other comprehensive income (loss): |  |  |  |
Share issuances |  |  | 0 |
Accumulated Foreign Currency Adjustment Including Portion Attributable to Noncontrolling Interest | MGP BREIT Venture [Member] |  |  |  |
Other changes in accumulated other comprehensive income (loss): |  |  |  |
Acquisition transaction |  |  | 0 |
Accumulated Net Gain (Loss) from Cash Flow Hedges Including Portion Attributable to Noncontrolling Interest |  |  |  |
Accumulated Other Comprehensive Income Loss [Line Items] |  |  |  |
Beginning Balance | (56,384) |  | (10,829) |
Other comprehensive income (loss) before reclassifications | (15,062) |  | (99,611) |
Amounts reclassified from accumulated other comprehensive loss to interest expense | 7,948 |  | 9,411 |
Other comprehensive income (loss) | (7,114) |  | (90,200) |
Other changes in accumulated other comprehensive income (loss): |  |  |  |
Redemption of Operating Partnership units | 0 |  | 0 |
Other | 0 |  | 0 |
Changes in accumulated other comprehensive income (loss): | (7,114) |  | (90,200) |
Other comprehensive loss (income) attributable to noncontrolling interest | 3,011 |  | 40,542 |
Ending Balance | (60,487) |  | (60,487) |
Accumulated Net Gain (Loss) from Cash Flow Hedges Including Portion Attributable to Noncontrolling Interest | MGM Growth Properties LLC [Member] | Class A Shareholders [Member] |  |  |  |
Other changes in accumulated other comprehensive income (loss): |  |  |  |
Share issuances |  |  | 0 |
Accumulated Net Gain (Loss) from Cash Flow Hedges Including Portion Attributable to Noncontrolling Interest | MGP BREIT Venture [Member] |  |  |  |
Other changes in accumulated other comprehensive income (loss): |  |  |  |
Acquisition transaction |  |  | 0 |
Accumulated Other Adjustment Including Portion Attributable To Noncontrolling Interest |  |  |  |
Accumulated Other Comprehensive Income Loss [Line Items] |  |  |  |
Beginning Balance | 3,550 |  | 3,374 |
Other comprehensive income (loss) before reclassifications | 0 |  | 0 |
Amounts reclassified from accumulated other comprehensive loss to interest expense | 0 |  | 0 |
Other comprehensive income (loss) | 0 |  | 0 |
Other changes in accumulated other comprehensive income (loss): |  |  |  |
Redemption of Operating Partnership units | 4,772 |  | 4,772 |
Other | (47) |  | (458) |
Changes in accumulated other comprehensive income (loss): | 4,725 |  | 4,901 |
Other comprehensive loss (income) attributable to noncontrolling interest | 0 |  | 0 |
Ending Balance | 8,275 |  | 8,275 |
Accumulated Other Adjustment Including Portion Attributable To Noncontrolling Interest | MGM Growth Properties LLC [Member] | Class A Shareholders [Member] |  |  |  |
Other changes in accumulated other comprehensive income (loss): |  |  |  |
Share issuances |  |  | 646 |
Accumulated Other Adjustment Including Portion Attributable To Noncontrolling Interest | MGP BREIT Venture [Member] |  |  |  |
Other changes in accumulated other comprehensive income (loss): |  |  |  |
Acquisition transaction |  |  | (59) |
AOCI Including Portion Attributable to Noncontrolling Interest |  |  |  |
Accumulated Other Comprehensive Income Loss [Line Items] |  |  |  |
Beginning Balance | (39,774) |  | (10,202) |
Other comprehensive income (loss) before reclassifications | (14,773) |  | (70,986) |
Amounts reclassified from accumulated other comprehensive loss to interest expense | 7,948 |  | 9,411 |
Other comprehensive income (loss) | (6,825) |  | (61,575) |
Other changes in accumulated other comprehensive income (loss): |  |  |  |
Redemption of Operating Partnership units | 4,772 |  | 4,772 |
Other | (47) |  | (458) |
Changes in accumulated other comprehensive income (loss): | (2,100) |  | (56,674) |
Other comprehensive loss (income) attributable to noncontrolling interest | 2,844 |  | 27,846 |
Ending Balance | $ (39,030) |  | (39,030) |
AOCI Including Portion Attributable to Noncontrolling Interest | MGM Growth Properties LLC [Member] | Class A Shareholders [Member] |  |  |  |
Other changes in accumulated other comprehensive income (loss): |  |  |  |
Share issuances |  |  | 646 |
AOCI Including Portion Attributable to Noncontrolling Interest | MGP BREIT Venture [Member] |  |  |  |
Other changes in accumulated other comprehensive income (loss): |  |  |  |
Acquisition transaction |  |  | $ (59) |

X
- Definition Change in accumulated other comprehensive income (loss). + References No definition available. + Details
Name: | mgm_ChangeInAccumulatedOtherComprehensiveIncomeLoss
Namespace Prefix: | mgm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Changes in accumulated other comprehensive income loss redemption of operating partnership units, + References No definition available. + Details
Name: | mgm_ChangesInAccumulatedOtherComprehensiveIncomeLossRedemptionOfOperatingPartnershipUnits
Namespace Prefix: | mgm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Net equity impact due to transaction between entities under common control. + References No definition available. + Details
Name: | mgm_NetEquityImpactDueToTransactionBetweenEntitiesUnderCommonControl
Namespace Prefix: | mgm_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Other comprehensive income loss other transactions. + References No definition available. + Details
Name: | mgm_OtherComprehensiveIncomeLossOtherTransactions
Namespace Prefix: | mgm_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTaxAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount after tax, before reclassification adjustments of other comprehensive income (loss). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669686-108580 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 55 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=118951672&loc=d3e1436-108581 + Details
Name: | us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount after tax and reclassification adjustments of other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669619-108580 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 55 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=118951672&loc=d3e1436-108581 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1B -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669625-108580 + Details
Name: | us-gaap_OtherComprehensiveIncomeLossNetOfTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount after tax of other comprehensive income (loss) attributable to noncontrolling interests. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=108774443&loc=SL4569643-111683 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1B -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669625-108580 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669619-108580 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=108774443&loc=SL4569616-111683 + Details
Name: | us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount after tax of reclassification adjustments of other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 17B -URI http://asc.fasb.org/extlink&oid=118930883&loc=SL34724394-108580 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669686-108580 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 55 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=118951672&loc=d3e1436-108581 + Details
Name: | us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_StockIssuedDuringPeriodValueNewIssues
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=108774443&loc=SL4568740-111683 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4I -URI http://asc.fasb.org/extlink&oid=116874947&loc=SL4590271-111686 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=108774443&loc=SL4568447-111683 + Details
Name: | us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=us-gaap_CommonClassAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=us-gaap_AccumulatedForeignCurrencyAdjustmentIncludingPortionAttributableToNoncontrollingInterestMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=us-gaap_AccumulatedGainLossNetCashFlowHedgeParentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=mgm_AccumulatedOtherAdjustmentIncludingPortionAttributableToNoncontrollingInterestMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=us-gaap_AociIncludingPortionAttributableToNoncontrollingInterestMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |