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Related Party Transactions - Summary of Accounts Receivable from Related Parties (Detail) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Related Party Transaction [Line Items]
Accounts receivable from related parties	$ 24,055	$ 26,884
WisdomTree Trust [Member]
Related Party Transaction [Line Items]
Accounts receivable from related parties	15,264	13,030
Manjer Issuers [Member]
Related Party Transaction [Line Items]
Accounts receivable from related parties	6,053	11,693
WisdomTree Multi Asset Issuer PLC And WisdomTree Issuer PLC [Member]
Related Party Transaction [Line Items]
Accounts receivable from related parties	$ 2,738	2,125
WisdomTree Commodity Services LLC [Member]
Related Party Transaction [Line Items]
Accounts receivable from related parties		$ 36

X

- Definition

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

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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