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Related Parties - Additional Information (Details) - USD ($) $ in Thousands |  | 12 Months Ended
--- | --- | ---
Oct. 26, 2015 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Related Party Transaction [Line Items] |  |  |  |
Fees receivable |  | $ 640,567 | $ 560,552 |
Benefit pursuant to tax receivable agreement |  | (8,237) | (43,894) | $ (1,209)
Payable pursuant to tax receivable agreement |  | 75,899 | 115,087 |
Investment Advisor | Sponsored Funds |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Revenue |  | 569,088 | 538,457 | 592,985
Fees receivable |  | 68,577 | 67,598 |
LTBP Trust |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Benefit pursuant to tax receivable agreement |  | 8,237 | 43,894 | $ 1,209
Payable pursuant to tax receivable agreement |  | $ 75,899 | $ 115,087 |
LTBP Trust | Tax Receivable Agreement |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Amount of cash savings in income or franchise tax that would be realized as a result of increases in tax basis and certain other tax benefits related to the amended and restated tax receivable agreement (as a percent) | 45.00% |  |  |
Cash tax saving that may arise from tax basis increases attributable to payments under the amended and restated tax receivable agreement (as a percent) | 85.00% |  |  |

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