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Financial instruments owned - Debt Securities, Trading, and Equity Securities, FV-NI (Detail) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
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Debt and Equity Securities, FV-NI [Line Items] |  |
Financial Instruments, Owned, at Fair Value | $ 126,239 | $ 127,166
WETF Trading Securities [Member] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Financial Instruments, Owned, at Fair Value | 124,474 | 127,166
Other Assets Seed Capital [Member] |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Financial Instruments, Owned, at Fair Value | $ 1,765 | $ 0

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- Definition The aggregate fair value as of the balance sheet date of financial instruments and other positions owned by the entity including: (1) mortgages, mortgage-backed and asset backed securities; (2) US government and agency obligations; (3) state and municipal government obligations; (4) other sovereign government debt; (5) corporate obligations; (6) corporate equities; (7) principal investments; (8) derivative contracts; and (9) physical commodities. Includes both pledged and unpledged holdings. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 940 -SubTopic 320 -Section 45 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=35711157&loc=d3e42546-110969 + Details
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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. + Details
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- Details
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- Details
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