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INVESTMENTS - Narrative (Details) - USD ($) | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | ---
Sep. 30, 2021 | Jun. 30, 2021 | Sep. 30, 2021 | Sep. 30, 2022 | Dec. 31, 2021
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Available-for-sale securities and fair value option investments |  |  |  | $ 0 | $ 0
Gain on sale of equity investments | $ 2,200,000 | $ 4,200,000 | $ 2,200,000 |  |
Other equity investments |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Equity method investments |  |  |  | $ 119,500,000 | $ 119,500,000
Equity method investment, percent ownership of voting stock |  |  |  | 2.29% |
Unrealized gain on investments | $ 89,100,000 |  | $ 89,100,000 |  |
Percentage of other equity investment sold | 100.00% |  |  |  |
Proceed from sale of equity method investments | $ 2,600,000 | $ 4,200,000 |  |  |

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