XML 74 R57.htm IDEA: XBRL DOCUMENT
v3.22.2.2

Fair Value Measurements - Summary of Categorization of Assets and Liabilities Measured at Fair Value (Detail) - USD ($) $ in Thousands | Sep. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Assets: |  |
Securities owned, at fair value | $ 125,110 | $ 127,166
Liabilities: |  |
Deferred consideration (Note 9) | 164,757 | 228,062
Fair Value, Measurements, Recurring [Member] |  |
Assets: |  |
Cash equivalents | 284 | 11,488
Total | 137,433 | 138,654
Liabilities: |  |
Deferred consideration (Note 9) | 164,757 | 228,062
Fair Value, Measurements, Recurring [Member] | Securrency Convertible Note [Member] |  |
Investments in Convertible Notes |  |
Investments, Fair value disclosure | 5,844 |
Fair Value, Measurements, Recurring [Member] | ETFs [Member] |  |
Assets: |  |
Securities owned, at fair value | 12,621 | 18,812
Fair Value, Measurements, Recurring [Member] | Pass-through GSEs [Member] |  |
Assets: |  |
Securities owned, at fair value | 102,248 | 106,245
Fair Value, Measurements, Recurring [Member] | Corporate Bonds [Member] |  |
Assets: |  |
Securities owned, at fair value | 1,804 | 2,109
Fair Value, Measurements, Recurring [Member] | U.S. treasuries |  |
Assets: |  |
Securities owned, at fair value | 8,437 |
Fair Value, Measurements, Nonrecurring [Member] | Onramp Preferred Stock [Member] |  |
Assets: |  |
Investment owned, at fair value | 312 |
Securrency - Series A convertible preferred stock | Fair Value, Measurements, Nonrecurring [Member] |  |
Assets: |  |
Investment owned, at fair value |  | 8,488
Fnality Convertible Note [Member] | Fair Value, Measurements, Recurring [Member] |  |
Investments in Convertible Notes |  |
Investments, Fair value disclosure | 6,195 |
Level 1 [Member] | Fair Value, Measurements, Recurring [Member] |  |
Assets: |  |
Cash equivalents | 284 | 11,488
Total | 45,036 | 55,020
Liabilities: |  |
Deferred consideration (Note 9) | 0 | 0
Level 1 [Member] | Fair Value, Measurements, Recurring [Member] | Securrency Convertible Note [Member] |  |
Investments in Convertible Notes |  |
Investments, Fair value disclosure | 0 |
Level 1 [Member] | Fair Value, Measurements, Recurring [Member] | ETFs [Member] |  |
Assets: |  |
Securities owned, at fair value | 12,621 | 18,812
Level 1 [Member] | Fair Value, Measurements, Recurring [Member] | Pass-through GSEs [Member] |  |
Assets: |  |
Securities owned, at fair value | 23,694 | 24,720
Level 1 [Member] | Fair Value, Measurements, Recurring [Member] | Corporate Bonds [Member] |  |
Assets: |  |
Securities owned, at fair value | 0 | 0
Level 1 [Member] | Fair Value, Measurements, Recurring [Member] | U.S. treasuries |  |
Assets: |  |
Securities owned, at fair value | 8,437 |
Level 1 [Member] | Fair Value, Measurements, Nonrecurring [Member] | Onramp Preferred Stock [Member] |  |
Assets: |  |
Investment owned, at fair value | 0 |
Level 1 [Member] | Securrency - Series A convertible preferred stock | Fair Value, Measurements, Nonrecurring [Member] |  |
Assets: |  |
Investment owned, at fair value |  | 0
Level 1 [Member] | Fnality Convertible Note [Member] | Fair Value, Measurements, Recurring [Member] |  |
Investments in Convertible Notes |  |
Investments, Fair value disclosure | 0 |
Level 2 [Member] | Fair Value, Measurements, Recurring [Member] |  |
Assets: |  |
Cash equivalents | 0 | 0
Total | 80,358 | 83,634
Liabilities: |  |
Deferred consideration (Note 9) | 0 | 0
Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Securrency Convertible Note [Member] |  |
Investments in Convertible Notes |  |
Investments, Fair value disclosure | 0 |
Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | ETFs [Member] |  |
Assets: |  |
Securities owned, at fair value | 0 | 0
Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Pass-through GSEs [Member] |  |
Assets: |  |
Securities owned, at fair value | 78,554 | 81,525
Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Corporate Bonds [Member] |  |
Assets: |  |
Securities owned, at fair value | 1,804 | 2,109
Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | U.S. treasuries |  |
Assets: |  |
Securities owned, at fair value | 0 |
Level 2 [Member] | Fair Value, Measurements, Nonrecurring [Member] | Onramp Preferred Stock [Member] |  |
Assets: |  |
Investment owned, at fair value | 0 |
Level 2 [Member] | Securrency - Series A convertible preferred stock | Fair Value, Measurements, Nonrecurring [Member] |  |
Assets: |  |
Investment owned, at fair value |  | 0
Level 2 [Member] | Fnality Convertible Note [Member] | Fair Value, Measurements, Recurring [Member] |  |
Investments in Convertible Notes |  |
Investments, Fair value disclosure | 0 |
Level 3 [Member] | Fair Value, Measurements, Recurring [Member] |  |
Assets: |  |
Cash equivalents | 0 | 0
Total | 12,039 | 0
Liabilities: |  |
Deferred consideration (Note 9) | 164,757 | 228,062
Level 3 [Member] | Fair Value, Measurements, Recurring [Member] | Securrency Convertible Note [Member] |  |
Investments in Convertible Notes |  |
Investments, Fair value disclosure | 5,844 |
Level 3 [Member] | Fair Value, Measurements, Recurring [Member] | ETFs [Member] |  |
Assets: |  |
Securities owned, at fair value | 0 | 0
Level 3 [Member] | Fair Value, Measurements, Recurring [Member] | Pass-through GSEs [Member] |  |
Assets: |  |
Securities owned, at fair value | 0 | 0
Level 3 [Member] | Fair Value, Measurements, Recurring [Member] | Corporate Bonds [Member] |  |
Assets: |  |
Securities owned, at fair value | 0 | 0
Level 3 [Member] | Fair Value, Measurements, Recurring [Member] | U.S. treasuries |  |
Assets: |  |
Securities owned, at fair value | 0 |
Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member] | Onramp Preferred Stock [Member] |  |
Assets: |  |
Investment owned, at fair value | 312 |
Level 3 [Member] | Securrency - Series A convertible preferred stock | Fair Value, Measurements, Nonrecurring [Member] |  |
Assets: |  |
Investment owned, at fair value |  | $ 8,488
Level 3 [Member] | Fnality Convertible Note [Member] | Fair Value, Measurements, Recurring [Member] |  |
Investments in Convertible Notes |  |
Investments, Fair value disclosure | $ 6,195 |

X
- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 + Details
Name: | us-gaap_AssetsFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_AssetsFairValueDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References No definition available. + Details
Name: | us-gaap_CashAndCashEquivalentsFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Value of the investment at close of period. For schedules of investments that are categorized, the value would be aggregated by category. For investment in and advances to affiliates, if operations of any controlled companies are different in character from those of the company, group such affiliates within divisions and by type of activities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 210 -Section 50 -Paragraph 6 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=99383244&loc=d3e12121-115841 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -Section S99 -Paragraph 5D -Subparagraph (SX 210.12-13D(Column C)) -URI https://asc.fasb.org/extlink&oid=122147990&loc=SL120429264-123010 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-12B(Column C)) -URI https://asc.fasb.org/extlink&oid=122147990&loc=d3e611197-123010 + Details
Name: | us-gaap_InvestmentOwnedAtFairValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 + Details
Name: | us-gaap_InvestmentsFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_InvestmentsFairValueDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_LiabilitiesFairValueDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Fair value of financial instruments held by a broker-dealer for their own account (proprietary securities) for trading or investment purposes determined by management based upon quoted prices of a financial instrument with similar characteristics or on a valuation technique or model. + 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
Name: | us-gaap_SecurityOwnedAndSoldNotYetPurchasedFairValueSecurityOwned
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of liability arising from deferred consideration in a business combination. + References No definition available. + Details
Name: | wetf_BusinessCombinationDeferredConsiderationLiability
Namespace Prefix: | wetf_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=wetf_SecurrencyConvertibleNoteMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SecurityOwnedAndSoldNotYetPurchasedAtFairValueAxis=us-gaap_ExchangeTradedFundsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SecurityOwnedAndSoldNotYetPurchasedAtFairValueAxis=wetf_FederalAgencyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SecurityOwnedAndSoldNotYetPurchasedAtFairValueAxis=us-gaap_AllOtherCorporateBondsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SecurityOwnedAndSoldNotYetPurchasedAtFairValueAxis=us-gaap_USTreasurySecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsNonrecurringMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=wetf_OnrampPreferredStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=wetf_SecurrencyseriesaconvertiblepreferredstockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=wetf_FnalityConvertibleNoteMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |