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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