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FAIR VALUE MEASUREMENTS - Narrative (Details) - USD ($) $ in Thousands | 3 Months Ended | 7 Months Ended | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Dec. 31, 2021 | Dec. 31, 2021 | Dec. 31, 2021 | Sep. 30, 2021 | Jun. 30, 2021 | Jan. 31, 2021 | Dec. 31, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |
Investment without readily determinable fair value |  |  |  |  |  |  | $ 5,000
Decrease in liability as a result of decreasing the profit element and risk premium input by 100 basis points |  |  | $ 900 |  |  |  |
Increase in liability as a result of decreasing the discount rate by 100 basis points |  |  | 2,900 |  |  |  |
Decrease in liability as a result of increasing the discount rate by 100 basis points |  |  | 2,300 |  |  |  |
Debt Securities, One |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |
Investments in debt securities |  |  |  |  |  | $ 25,000 |
Debt Securities, Two |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |
Investments in debt securities |  |  |  |  | $ 20,000 |  |
Proceeds from settlement | $ 26,600 |  |  |  |  |  |
Principal amount settled | 20,000 |  |  |  |  |  |
Proceeds from interest and change in control premium |  | $ 6,600 |  |  |  |  |
Debt Securities, Three |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |
Investments in debt securities |  |  |  | $ 13,000 |  |  |
Level 2 | Recurring |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |
Investments in debt securities | 0 | 0 | 0 |  |  |  | $ 0
Level 2 | Recurring | Convertible Notes | Convertible Senior Notes Due 2028 |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |
Notes payable fair value | 594,400 | 594,400 | 594,400 |  |  |  |
Level 2 | Recurring | Convertible Notes | Convertible Senior Notes Due 2026 |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |
Notes payable fair value | 642,300 | 642,300 | 642,300 |  |  |  |
Level 2 | Recurring | Convertible Notes | Convertible Senior Notes Due 2025 |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |
Notes payable fair value | $ 240,000 | $ 240,000 | $ 240,000 |  |  |  |

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