XML 60 R42.htm IDEA: XBRL DOCUMENT
v3.19.2

Long-Term Debt - Schedule of Long-Term Debt (Parenthetical) (Detail) - USD ($) $ in Millions | 1 Months Ended | 6 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
May 31, 2019 | Apr. 30, 2019 | Jan. 31, 2019 | Jun. 30, 2019 | Dec. 31, 2018 | Feb. 28, 2019
8.625% senior notes, due 2019 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Long-term debt, principal amount |  |  |  |  | $ 850.0 |
Long-term debt, interest rate (as a percent) |  |  |  |  | 8.625% | 8.625%
Long-term debt, maturity year |  |  |  |  | 2019 |
5.25% senior notes, due 2020 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Long-term debt, principal amount |  |  |  | $ 500.0 | $ 500.0 |
Long-term debt, interest rate (as a percent) |  | 5.25% |  | 5.25% | 5.25% |
Long-term debt, maturity year |  | 2020 |  | 2020 | 2020 |
6.75% senior notes, due 2020 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Long-term debt, principal amount |  |  |  | $ 1,000.0 | $ 1,000.0 |
Long-term debt, interest rate (as a percent) |  | 6.75% |  | 6.75% | 6.75% |
Long-term debt, maturity year |  | 2020 |  | 2020 | 2020 |
6.625% senior notes, due 2021 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Long-term debt, principal amount |  |  |  | $ 1,250.0 | $ 1,250.0 |
Long-term debt, interest rate (as a percent) |  |  |  | 6.625% | 6.625% |
Long-term debt, maturity year |  |  |  | 2021 | 2021 |
7.75% senior notes, due 2022 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Long-term debt, principal amount |  |  |  | $ 1,000.0 | $ 1,000.0 |
Long-term debt, interest rate (as a percent) |  |  |  | 7.75% | 7.75% |
Long-term debt, maturity year |  |  |  | 2022 | 2022 |
6% senior notes, due 2023 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Long-term debt, principal amount |  |  |  | $ 1,250.0 | $ 1,250.0 |
Long-term debt, interest rate (as a percent) |  |  |  | 6.00% | 6.00% |
Long-term debt, maturity year |  |  |  | 2023 | 2023 |
5.625% Operating Partnership senior notes, due 2024 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Long-term debt, principal amount |  |  |  | $ 1,050.0 | $ 1,050.0 |
Long-term debt, interest rate (as a percent) |  |  |  | 5.625% | 5.625% |
Long-term debt, maturity year |  |  |  | 2024 | 2024 |
5.375% MGM China senior notes, due 2024 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Long-term debt, principal amount | $ 750.0 |  |  | $ 750.0 |  |
Long-term debt, interest rate (as a percent) | 5.375% |  |  | 5.375% |  |
Long-term debt, maturity year | 2024 |  |  | 2024 |  |
5.75% senior notes, due 2025 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Long-term debt, principal amount |  |  |  | $ 1,000.0 |  |
Long-term debt, interest rate (as a percent) |  |  |  | 5.75% |  |
Long-term debt, maturity year |  |  |  | 2025 |  |
5.875% MGM China senior notes, due 2026 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Long-term debt, principal amount | $ 750.0 |  |  | $ 750.0 |  |
Long-term debt, interest rate (as a percent) | 5.875% |  |  | 5.875% |  |
Long-term debt, maturity year | 2026 |  |  | 2026 |  |
4.5% Operating Partnership senior notes, due 2026 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Long-term debt, principal amount |  |  |  | $ 500.0 | $ 500.0 |
Long-term debt, interest rate (as a percent) |  |  |  | 4.50% | 4.50% |
Long-term debt, maturity year |  |  |  | 2026 | 2026 |
4.625% senior notes, due 2026 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Long-term debt, principal amount |  |  |  | $ 500.0 | $ 500.0 |
Long-term debt, interest rate (as a percent) |  |  |  | 4.625% | 4.625% |
Long-term debt, maturity year |  |  |  | 2026 | 2026 |
5.75% Operating Partnership senior notes, due 2027 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Long-term debt, principal amount |  |  | $ 750.0 | $ 750.0 |  |
Long-term debt, interest rate (as a percent) |  |  | 5.75% | 5.75% |  |
Long-term debt, maturity year |  |  | 2027 | 2027 |  |
5.5% senior notes, due 2027 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Long-term debt, principal amount |  |  |  | $ 1,000.0 |  |
Long-term debt, interest rate (as a percent) |  |  |  | 5.50% |  |
Long-term debt, maturity year |  |  |  | 2027 |  |
4.50% MGM Growth Properties senior notes, due 2028 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Long-term debt, principal amount |  |  |  | $ 350.0 | $ 350.0 |
Long-term debt, interest rate (as a percent) |  |  |  | 4.50% | 4.50% |
Long-term debt, maturity year |  |  |  | 2028 | 2028 |
7% debentures, due 2036 [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 |

X
- Definition Debt instrument maturity year. + References No definition available. + Details
Name: | mgm_DebtInstrumentMaturityYear
Namespace Prefix: | mgm_
Data Type: | xbrli:gYearItemType
Balance Type: | na
Period Type: | duration

X
- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28551-108399 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400 + Details
Name: | us-gaap_DebtInstrumentFaceAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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_DebtInstrumentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mgm_SeniorNotesEightPointSixTwoFivePercentDueInTwoThousandNineteenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mgm_SeniorNotesFivePointTwoFivePercentDueInTwoThousandTwentyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mgm_SeniorNotesSixPointSevenFivePercentDueTwoThousandTwentyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mgm_SeniorNotesSixPointSixTwoFivePercentDueTwoThousandTwentyOneNetMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mgm_SeniorNotesSevenPointSevenFivePercentDueInTwoThousandTwentyTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mgm_SeniorNotesSixPercentDueTwoThousandTwentyThreeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mgm_OperatingPartnershipSeniorNotesFivePointSixTwoFivePercentDueInTwoThousandTwentyFourMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mgm_MGMChinaSeniorNotesFivePointThreeSevenFivePercentDueInTwoThousandTwentyFourMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mgm_SeniorNotesFivePointSevenFivePercentDueInTwoThousandTwentyFiveMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mgm_MGMChinaSeniorNotesFivePointEightSevenFivePercentDueInTwoThousandTwentySixMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mgm_OperatingPartnershipSeniorNotesFourPointFivePercentDueInTwoThousandTwentySixMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mgm_SeniorNotesFourPointSixTwoFivePercentDueTwoThousandTwentySixMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mgm_OperatingPartnershipSeniorNotesFivePointSevenFivePercentDueInTwoThousandTwentySevenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mgm_SeniorNotesFivePointFivePercentDueTwoThousandTwentySevenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mgm_OperatingPartnershipSeniorNotesFourPointFivePercentDueInTwoThousandTwentyEightMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mgm_DebenturesSevenPercentDueTwoThousandThirtySixMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |