XML 95 R79.htm IDEA: XBRL DOCUMENT
v3.21.2

Leases - Additional Information (Detail) - USD ($) $ in Thousands |  |  | 6 Months Ended
--- | --- | --- | ---
Aug. 21, 2024 | Aug. 21, 2023 | Jun. 30, 2021
Operating lease notice to landlord before cancellation |  | 12 months |
Operating lease, impairment loss |  |  | $ 303
Scenario, Forecast [Member] |  |  |
Operating lease cancellation cost | $ 4,236 |  |

X
- Definition Amount of loss from impairment of right-of-use asset from operating lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 25 -Paragraph 6 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121593497&loc=SL77918431-209957 + Details
Name: | us-gaap_OperatingLeaseImpairmentLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of Operating Lease Cancellation Cost. + References No definition available. + Details
Name: | wetf_OperatingLeaseCancellationCost
Namespace Prefix: | wetf_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Operating Lease Notice to Landlord Before Cancellation. + References No definition available. + Details
Name: | wetf_OperatingLeaseNoticeToLandlordBeforeCancellation
Namespace Prefix: | wetf_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_StatementScenarioAxis=srt_ScenarioForecastMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |