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Stockholders' Equity (Tables) | 12 Months Ended
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Dec. 31, 2021
Equity [Abstract] |
Schedule of Changes in Accumulated Other Comprehensive Loss Attributable to MGM Resorts International by Component | Changes in accumulated other comprehensive loss attributable to MGM Resorts International are as follows:
|  | Currency Translation Adjustments |  | Cash Flow Hedges |  | Other |  | Total
|  | (In thousands)
Balances, January 1, 2019 |  | $ | (18,872) |  |  | $ | 9,144 |  |  | $ | 1,172 |  |  | $ | (8,556) |
Other comprehensive income (loss) before reclassifications |  | 28,870 |  |  | (28,783) |  |  | — |  |  | 87 |
Amounts reclassified from accumulated other comprehensive loss to interest expense |  | — |  |  | (5,599) |  |  | — |  |  | (5,599) |
Amounts reclassified from accumulated other comprehensive loss related to de-designation of interest rate swaps to "Other, net" |  | — |  |  | 4,877 |  |  | — |  |  | 4,877 |
Other comprehensive income (loss), net of tax |  | 28,870 |  |  | (29,505) |  |  | — |  |  | (635) |
Other changes in accumulated other comprehensive loss: |  |  |  |  |  |  |  |
Empire City MGP transaction |  | — |  |  | — |  |  | 195 |  |  | 195 |
MGP Class A share issuances |  | — |  |  | — |  |  | 1,512 |  |  | 1,512 |
Park MGM Transaction |  | — |  |  | — |  |  | 16 |  |  | 16 |
Northfield transaction |  | — |  |  | — |  |  | (2) |  |  | (2) |
Other |  | — |  |  | — |  |  | 481 |  |  | 481 |
Changes in accumulated other comprehensive loss |  | 28,870 |  |  | (29,505) |  |  | 2,202 |  |  | 1,567 |
Other comprehensive (income) loss attributable to noncontrolling interest |  | (12,745) |  |  | 9,532 |  |  | — |  |  | (3,213) |
Balances, December 31, 2019 |  | (2,747) |  |  | (10,829) |  |  | 3,374 |  |  | (10,202) |
Other comprehensive income (loss) before reclassifications |  | 27,762 |  |  | (94,740) |  |  | — |  |  | (66,978) |
Amounts reclassified from accumulated other comprehensive loss to interest expense |  | — |  |  | 17,922 |  |  | — |  |  | 17,922 |
Amounts reclassified from accumulated other comprehensive loss to "Other, net" |  | — |  |  | (2,547) |  |  | — |  |  | (2,547) |
Other comprehensive income (loss), net of tax |  | 27,762 |  |  | (79,365) |  |  | — |  |  | (51,603) |
Other changes in accumulated other comprehensive loss: |  |  |  |  |  |  |  |
MGP Class A share issuances |  | — |  |  | — |  |  | 646 |  |  | 646 |
MGP BREIT Venture Transaction |  | — |  |  | — |  |  | (59) |  |  | (59) |
Redemption of Operating Partnership units |  | — |  |  | — |  |  | 8,773 |  |  | 8,773 |
Other |  | — |  |  | — |  |  | (1,018) |  |  | (1,018) |
Changes in accumulated other comprehensive loss |  | 27,762 |  |  | (79,365) |  |  | 8,342 |  |  | (43,261) |
Other comprehensive (income) loss attributable to noncontrolling interest |  | (12,051) |  |  | 34,837 |  |  | — |  |  | 22,786 |
Balances, December 31, 2020 |  | 12,964 |  |  | (55,357) |  |  | 11,716 |  |  | (30,677) |
Other comprehensive income (loss) before reclassifications |  | (24,655) |  |  | 12,588 |  |  | — |  |  | (12,067) |
Amounts reclassified from accumulated other comprehensive loss to interest expense |  | — |  |  | 22,200 |  |  | — |  |  | 22,200 |
Other comprehensive income (loss), net of tax |  | (24,655) |  |  | 34,788 |  |  | — |  |  | 10,133 |
Other changes in accumulated other comprehensive loss |  |  |  |  |  |  |  |
MGP Class A share issuances |  | — |  |  | — |  |  | 3,240 |  |  | 3,240 |
Redemption of Operating Partnership units |  | — |  |  | — |  |  | 5,327 |  |  | 5,327 |
Other |  | — |  |  | — |  |  | (2,358) |  |  | (2,358) |
Changes in accumulated other comprehensive loss |  | (24,655) |  |  | 34,788 |  |  | 6,209 |  |  | 16,342 |
Other comprehensive (income) loss attributable to noncontrolling interest |  | 10,784 |  |  | (21,065) |  |  | — |  |  | (10,281) |
Balances, December 31, 2021 |  | $ | (907) |  |  | $ | (41,634) |  |  | $ | 17,925 |  |  | $ | (24,616) |
Summary of Net Income Attributable to and Transfers from Noncontrolling Interest, Which Shows Effects of Changes in Company's Ownership Interest in a Subsidiary | The following is a summary of net income attributable to MGM Resorts International and transfers to noncontrolling interest, which shows the effects of changes in the Company’s ownership interest in a subsidiary on the equity attributable to the Company:
|  | For the Years Ended December 31,
|  | 2021 |  | 2020 |  | 2019
|  | (In thousands)
Net income (loss) attributable to MGM Resorts International |  | $ | 1,254,370 |  |  | $ | (1,032,724) |  |  | $ | 2,049,146 |
Transfers from/(to) noncontrolling interest: |  |  |  |  |  |
Empire City MGP transaction |  | — |  |  | — |  |  | (18,718) |
MGP Class A share issuances |  | 103,174 |  |  | 64,834 |  |  | 151,976 |
Park MGM Transaction |  | — |  |  | — |  |  | (1,968) |
Northfield transaction |  | — |  |  | — |  |  | 21,679 |
MGP BREIT Venture Transaction |  | — |  |  | (6,562) |  |  | — |
Redemption of Operating Partnership units |  | 176,659 |  |  | 92,632 |  |  | — |
Other |  | (5,062) |  |  | (1,759) |  |  | (935) |
Net transfers from noncontrolling interest |  | 274,771 |  |  | 149,145 |  |  | 152,034 |
Change from net income (loss) attributable to MGM Resorts International and transfers to noncontrolling interest |  | $ | 1,529,141 |  |  | $ | (883,579) |  |  | $ | 2,201,180 |

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