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Related Party Transactions - Additional Information (Detail) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2023 | Mar. 31, 2022 | Dec. 31, 2022
Related Party Transaction [Line Items] |  |  |
Net gains (losses) related to certain WisdomTree ETFs | $ (422) | $ 806 |
WisdomTree ETF [Member] |  |  |
Related Party Transaction [Line Items] |  |  |
Investments | 45,214 |  | $ 25,283
WisdomTree ETF [Member] | Affiliated Blockchain Enabled Funds [Member] |  |  |
Related Party Transaction [Line Items] |  |  |
Investments | $ 12,413 |  | $ 1,765

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