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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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- Definition

Amount of realized and unrealized gain (loss) on investment.

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Sum of the carrying amounts as of the balance sheet date of all investments.

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