XML 52 R35.htm IDEA: XBRL DOCUMENT
v3.22.2.2

Significant Accounting Policies (Tables) | 9 Months Ended
--- | ---
Sep. 30, 2022
Accounting Policies [Abstract] |
Schedule of Estimated Useful Lives of Related Assets | Depreciation and amortization is provided for using the straight-line method over the estimated useful lives of the related assets as follows:​​​​​​​
Equipment |  |  | 3 to 5 years |
Internally-developed software |  |  | 3 years |

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

X
- Definition Schedule of estimated useful lives of related assets. + References No definition available. + Details
Name: | wetf_ScheduleOfEstimatedUsefulLivesOfRelatedAssetsTableTextBlock
Namespace Prefix: | wetf_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration