Related Party Transactions - Summary of Accounts Receivable from Related Parties (Detail) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Related Party Transaction [Line Items]
Accounts receivable from related parties	$ 25,743	$ 25,628
WisdomTree Trust [Member]
Related Party Transaction [Line Items]
Accounts receivable from related parties	15,711	15,987
Manjer Issuers [Member]
Related Party Transaction [Line Items]
Accounts receivable from related parties	6,879	6,460
WisdomTree Multi Asset Issuer PLC And WisdomTree Issuer PLC [Member]
Related Party Transaction [Line Items]
Accounts receivable from related parties	$ 3,153	$ 3,181

For an unclassified balance sheet, amount of receivables arising from transactions with related parties.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant