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Related Party Transactions - Additional Information (Detail) - USD ($) $ in Thousands |  | 3 Months Ended | 6 Months Ended |
--- | --- | --- | --- | ---
May 10, 2023 | Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022 | Dec. 31, 2022
Related Party Transaction [Line Items] |  |  |  |  |  |
Net gains (losses) related to certain WisdomTree ETFs |  | $ 419 | $ (313) | $ 841 | $ (1,119) |
Payment made for contractual obligation | $ 45,634 |  |  |  |  |
WisdomTree ETF [Member] |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Investments |  | 38,451 |  | 38,451 |  | $ 25,283
WisdomTree ETF [Member] | Affiliated Blockchain Enabled Funds [Member] |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Investments |  | $ 12,876 |  | $ 12,876 |  | $ 1,765

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