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Related Party Transactions - Additional Information (Detail) € in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($)	Dec. 31, 2022 EUR (€)	Dec. 31, 2021 USD ($)	Dec. 31, 2021 EUR (€)	Dec. 31, 2020 USD ($)	Dec. 31, 2020 EUR (€)
Related Party Transaction [Line Items]
Revenue from Related Parties	$ 671	€ 642	$ 710	€ 612	$ 429	€ 313
Net losses related to certain WisdomTree ETFs	107		451		$ 63
WisdomTree ETF [Member]
Related Party Transaction [Line Items]
Investment	$ 25,283		$ 18,526

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