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Related Party Transactions - Summary of Accounts Receivable from Related Parties (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Related Party Transaction [Line Items]
Accounts receivable from related parties	$ 26,608	$ 20,596
WisdomTree Trust [Member]
Related Party Transaction [Line Items]
Accounts receivable from related parties	17,035	19,433
ETFS Issuers [Member]
Related Party Transaction [Line Items]
Accounts receivable from related parties	8,369
Boost Issuer PLC And WisdomTree Issuer plc [Member]
Related Party Transaction [Line Items]
Accounts receivable from related parties	957	979
WisdomTree Commodity Services LLC [Member]
Related Party Transaction [Line Items]
Accounts receivable from related parties	110	97
WisdomTree Asset Management Canada, Inc [Member]
Related Party Transaction [Line Items]
Accounts receivable from related parties	$ 137	$ 87

X

- Definition

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

+ References

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-Publisher FASB
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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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