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Related Party Transactions - Narrative (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2023 | Dec. 31, 2022 | Mar. 31, 2023
Related Party Transaction [Line Items] |  |  |  |  |
Revenues | $ 125,264 | $ 127,074 | $ 377,177 | $ 415,965 |
Fees receivable | 67,751 |  | 67,751 |  | $ 47,140
General Partnerships |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Fees receivable | 51,760 |  | 51,760 |  | $ 31,684
Management and advisory fees |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Revenues | 113,641 | 97,355 | 328,232 | 276,182 |
Management and advisory fees | General Partnerships |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Revenues | 87,482 | 70,929 | 251,502 | 198,973 |
Incentive fees |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Revenues | 11,623 | 29,719 | 48,945 | 139,783 |
Incentive fees | General Partnerships |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Revenues | $ 11,432 | $ 28,652 | $ 46,659 | $ 137,545 |

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