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v3.23.1

Related Parties - Additional Information (Detail) - USD ($) $ in Thousands |  | 3 Months Ended |
--- | --- | --- | ---
Oct. 26, 2015 | Mar. 31, 2023 | Mar. 31, 2022 | Dec. 31, 2022
Related Party Transaction [Line Items] |  |  |  |
Fees receivable |  | $ 509,831 |  | $ 491,861
Benefit pursuant to tax receivable agreement |  | 40,435 |  |
Payments for tax receivable agreement obligation |  | 32,191 | $ 20,945 |
Sponsored Funds [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Revenue |  | $ 133,523 | $ 164,371 |
Type of Revenue [Extensible List] |  | Asset Management Fees [Member] | Asset Management Fees [Member] |
Fees receivable |  | $ 58,596 |  | 57,283
LTBP Trust [Member] |  |  |  |
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 | 45.00% |  |  |
Cash tax saving that may arise from tax basis increases attributable to payments under the amended and restated tax receivable agreement | 85.00% |  |  |
Tax receivable agreement date | Oct. 26, 2015 |  |  |
Cumulative liability relating to obligations under Amended and Restated Tax Receivable Agreement |  | 118,563 |  | $ 191,189
Benefit pursuant to tax receivable agreement |  | 40,435 |  |
Payments for tax receivable agreement obligation |  | $ 32,191 |  |
Amended and Restated Tax Receivable Agreement [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Tax agreement termination year |  | 2033 |  |

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