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Related Party Transactions - Summary of Accounts Receivable from Related Parties (Detail) - USD ($) $ in Thousands | Mar. 31, 2023 | Dec. 31, 2022
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Related Party Transaction [Line Items] |  |
Accounts receivable from related parties | $ 32,446 | $ 24,139
WisdomTree Trust [Member] |  |
Related Party Transaction [Line Items] |  |
Accounts receivable from related parties | 17,124 | 16,399
Manjer Issuers [Member] |  |
Related Party Transaction [Line Items] |  |
Accounts receivable from related parties | 12,790 | 4,485
Wisdomtree Multi Asset Issuer plc And Wisdomtree issuer icav [Member] |  |
Related Party Transaction [Line Items] |  |
Accounts receivable from related parties | $ 2,532 | $ 3,255

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