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GOODWILL AND OTHER INTANGIBLE ASSETS - Schedule of Goodwill and Other Intangible Assets (Details) - USD ($) $ in Thousands | Jun. 30, 2023 | Jan. 01, 2023 | Dec. 31, 2022
--- | --- | --- | ---
Goodwill And Intangible Assets [Line Items] |  |  |
Goodwill | $ 5,029,189 |  | $ 5,029,312
Total indefinite-lived intangible assets | 1,142,575 |  | 1,139,491
Finite-lived intangible assets, net | 591,437 |  | 411,761
Other intangible assets, net | 1,734,012 |  | 1,551,252
Gaming Subconcession | M G M Grand Paradise |  |  |
Goodwill And Intangible Assets [Line Items] |  |  |
Finite-lived intangible assets, gross | 0 |  | 4,519,486
Less: Accumulated amortization | 0 |  | (4,519,486)
Finite-lived intangible assets, net | 0 |  | 0
Customer lists |  |  |
Goodwill And Intangible Assets [Line Items] |  |  |
Finite-lived intangible assets, gross | 285,818 |  | 283,232
Less: Accumulated amortization | (83,243) |  | (60,055)
Finite-lived intangible assets, net | 202,575 |  | 223,177
Gaming rights |  |  |
Goodwill And Intangible Assets [Line Items] |  |  |
Finite-lived intangible assets, gross | 332,428 |  | 106,600
Less: Accumulated amortization | (48,150) |  | (33,316)
Finite-lived intangible assets, net | 284,278 |  | 73,284
Technology and other |  |  |
Goodwill And Intangible Assets [Line Items] |  |  |
Finite-lived intangible assets, gross | 131,287 |  | 129,061
Less: Accumulated amortization | (26,703) |  | (13,761)
Finite-lived intangible assets, net | 104,584 |  | 115,300
Gaming Concession | M G M Grand Paradise |  |  |
Goodwill And Intangible Assets [Line Items] |  |  |
Finite-lived intangible assets, gross |  | $ 226,000 |
Trademarks |  |  |
Goodwill And Intangible Assets [Line Items] |  |  |
Total indefinite-lived intangible assets | 757,410 |  | 754,431
Gaming rights and other |  |  |
Goodwill And Intangible Assets [Line Items] |  |  |
Total indefinite-lived intangible assets | $ 385,165 |  | $ 385,060

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