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FAIR VALUE MEASUREMENTS - Narrative (Details) - USD ($) $ in Millions | 1 Months Ended | 3 Months Ended |  |
--- | --- | --- | --- | ---
Dec. 31, 2021 | Mar. 31, 2022 | Mar. 31, 2023 | Dec. 31, 2022
OHA Acquisition |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Contingent consideration, maximum earnout payment | $ 900.0 |  |  |
Extended earnout payment period | 2 years |  |  |
Earnout 30% threshold | 22.00% |  |  |
Incentive payment, percentage | 10.00% |  |  |
OHA Acquisition | Compensation and Related Costs |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Change in fair value |  | $ 5.1 |  |
Fair value measured at NAV |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Investments held at fair value |  |  | $ 80.1 | $ 86.4

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