XML 84 R68.htm IDEA: XBRL DOCUMENT v3.22.2

Investments - Additional Information (Detail) £ in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)	Mar. 31, 2031	Dec. 31, 2029	Jun. 30, 2022 GBP (£)	Dec. 31, 2021 USD ($)	Mar. 31, 2021 shares	Dec. 31, 2019 shares
Investment [Line Items]
Cost of Investments	$ 26,012		$ 26,012					$ 14,238
Percentage Of Voting Approval Required To Redeem All Of The Outstanding Notes At Maturity			50.00%
Percentage of voting approval required to redeem all of the outstanding notes before maturity			75.00%
Unrealized gain (loss) on investments			$ (9,322)	$ (696)
Percentage of outstanding convertible note			75
Subsequent Event [Member]
Investment [Line Items]
Percentage of voting approval required to redeem all of the outstanding series a shares						60.00%
Percentage of voting approval required to redeem all of the outstanding series B shares					90.00%
Securrency Inc [Member]
Investment [Line Items]
Cost of Investments	$ 13,612		$ 13,612
Ownership interest percentage	22.00%		22.00%				22.00%
Original fully diluted ownership interest percentage	18.00%		18.00%				18.00%
Securrency - Series A Preferred Stock [Member]
Investment [Line Items]
Number of shares purchased | shares										5,178,488
Non-cumulative dividend			6.00%
Unrealized gain (loss) on investments		$ 139		376
Securrency - Series B Convertible Preferred Stock [Member]
Investment [Line Items]
Number of shares purchased | shares									2,004,665
Onramp Invest, LLC [Member]
Investment [Line Items]
Cost of Investments	$ 250		$ 250
Percentage of discount on future equity financing for preferred stock	20.00%		20.00%				20.00%
Impairment Of Investments		$ 0		$ 0
Unrealized gain (loss) on investments	$ 62		$ 62
Fnality International Limited [Member]
Investment [Line Items]
Ownership interest percentage	5.00%		5.00%				5.00%
Percentage of discount on future equity financing for preferred stock	20.00%		20.00%				20.00%
Debt Instrument Maturity Date			Dec. 31, 2023
Unrealized gain (loss) on investments	$ (163)		$ (430)
Fnality International Limited [Member] | Accounting Standards Update 2016-01 [Member]
Investment [Line Items]
Fair value	$ 6,863		$ 6,863				£ 5,000
Securrency Convertible Note [Member]
Investment [Line Items]
Ownership interest percentage	7.00%		7.00%				7.00%
Percentage of discount on future equity financing for preferred stock	25.00%		25.00%				25.00%
Debt Instrument Maturity Date			Apr. 21, 2023
Unrealized gain (loss) on investments	$ 279		$ 279
Securrency Convertible Note [Member] | Accounting Standards Update 2016-01 [Member]
Investment [Line Items]
Fair value	$ 5,000		$ 5,000

X

- Definition

Date when the debt instrument is scheduled to be fully repaid, in YYYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(2))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 1B
-Subparagraph (d)
-URI https://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

+ Details

Name:	us-gaap_DebtInstrumentMaturityDate
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The amount by which the fair value of an investment is less than the amortized cost basis or carrying amount of that investment at the balance sheet date and the decline in fair value is deemed to be other than temporary, before considering whether or not such amount is recognized in earnings or other comprehensive income.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 45
-Paragraph 8A
-URI https://asc.fasb.org/extlink&oid=124260329&loc=SL6284422-111562

+ Details

Name:	us-gaap_ImpairmentOfInvestments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Amount of investment in equity method investee and investment in and advance to affiliate.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(18))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

Name:	us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

The percentage rate used to calculate dividend payments on preferred stock.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 13
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=126973232&loc=SL123496158-112644

+ Details

Name:	us-gaap_PreferredStockDividendRatePercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of unrealized gain (loss) on investment.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585

+ Details

Name:	us-gaap_UnrealizedGainLossOnInvestments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Cost method investments fair value disclosure.

+ References

No definition available.

+ Details

Name:	wetf_CostMethodInvestmentFairValueDisclosure
Namespace Prefix:	wetf_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Cost method investment ownership percentage.

+ References

No definition available.

+ Details

Name:	wetf_CostMethodInvestmentOwnershipPercentage
Namespace Prefix:	wetf_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Original fully diluted ownership interest percentage.

+ References

No definition available.

+ Details

Name:	wetf_CostMethodInvestmentOwnershipPercentageDiluted
Namespace Prefix:	wetf_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Line items represent reporting 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

Name:	wetf_InvestmentsLineItems
Namespace Prefix:	wetf_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Number of Series A Preferred Shares purchased in AdvisorEngine.

+ References

No definition available.

+ Details

Name:	wetf_NumberOfSharesPurchasedFromRelatedParties
Namespace Prefix:	wetf_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Percentage of Discount on future equity financing for preferred stock.

+ References

No definition available.

+ Details

Name:	wetf_PercentageOfDiscountOnFutureEquityFinancingForPreferredStock
Namespace Prefix:	wetf_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Percentage of outstanding convertible note.

+ References

No definition available.

+ Details

Name:	wetf_PercentageOfOutstandingConvertibleNote
Namespace Prefix:	wetf_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Percentage of voting approval required to redeem all of the outstanding notes at maturity.

+ References

No definition available.

+ Details

Name:	wetf_PercentageOfVotingApprovalRequiredToRedeemAllOfTheOutstandingNotesAtMaturity
Namespace Prefix:	wetf_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Percentage of voting approval required to redeem all of the outstanding series A shares.

+ References

No definition available.

+ Details

Name:	wetf_PercentageOfVotingApprovalRequiredToRedeemAllOfTheOutstandingSeriesAShares
Namespace Prefix:	wetf_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Percentage of voting approval required to redeem all of the outstanding series B shares.

+ References

No definition available.

+ Details

Name:	wetf_PercentageOfVotingApprovalRequiredToRedeemAllOfTheOutstandingSeriesBShares
Namespace Prefix:	wetf_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Percentage of voting approval required to redeem all of the outstanding notes before maturity.

+ References

No definition available.

+ Details

Name:	wetf_Percentageofvotingapprovalrequiredtoredeemalloftheoutstandingnotesbeforematurity
Namespace Prefix:	wetf_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=wetf_SecurrencyIncMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=wetf_SecurrencyseriesapreferredstockMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=wetf_SecurrencyseriesbconvertiblepreferredstockMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=wetf_OnrampInvestLlcMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=wetf_FnalityInternationalLimitedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_AdjustmentsForNewAccountingPronouncementsAxis=us-gaap_AccountingStandardsUpdate201601Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=wetf_SecurrencyConvertibleNoteMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: