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Related Party Transactions - Summary of Accounts Receivable from Related Parties (Detail) - USD ($)
$ in Thousands
Jun. 30, 2022
Dec. 31, 2021
Related Party Transaction [Line Items]    
Accounts receivable from related parties $ 23,905 $ 25,628
WisdomTree Trust [Member]    
Related Party Transaction [Line Items]    
Accounts receivable from related parties 14,719 15,987
Manjer Issuers [Member]    
Related Party Transaction [Line Items]    
Accounts receivable from related parties 5,871 6,460
WisdomTree Multi Asset Issuer PLC And WisdomTree Issuer PLC [Member]    
Related Party Transaction [Line Items]    
Accounts receivable from related parties $ 3,315 $ 3,181