XML 109 R92.htm IDEA: XBRL DOCUMENT
v3.22.2.2

Stock-Based Awards - Additional Information (Detail) - USD ($) $ in Thousands |  | 3 Months Ended | 9 Months Ended
--- | --- | --- | ---
Jul. 15, 2022 | Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021
Share-based Payment Award |  |  |  |  |
Shares of common stock authorized to issue under equity award plan | 16,000,000 |  |  |  |
Stock-based compensation expense |  | $ 2,454 | $ 2,397 | $ 7,822 | $ 7,661
Below 25th Percentile [Member] |  |  |  |  |
Share-based Payment Award |  |  |  |  |
Shares granted and outstanding, Vesting percentage |  |  |  | 0.00% |
At 25th Percentile [Member] |  |  |  |  |
Share-based Payment Award |  |  |  |  |
Shares granted and outstanding, Vesting percentage |  |  |  | 50.00% |
At 50th Percentile [Member] |  |  |  |  |
Share-based Payment Award |  |  |  |  |
Shares granted and outstanding, Vesting percentage |  |  |  | 100.00% |
At 100th Percentile for grants made in 2019 and 2020 [Member] |  |  |  |  |
Share-based Payment Award |  |  |  |  |
Shares granted and outstanding, Vesting percentage |  |  |  | 200.00% |
At 85th Percentile for grants made in 2021 [Member] |  |  |  |  |
Share-based Payment Award |  |  |  |  |
Shares granted and outstanding, Vesting percentage |  |  |  | 200.00% |
Vesting Capped if TSR is Negative [Member] |  |  |  |  |
Share-based Payment Award |  |  |  |  |
Vesting cap if TSR is negative |  |  |  | 100.00% |
Performance Based Restricted Stock Unit [Member] | Maximum [Member] |  |  |  |  |
Share-based Payment Award |  |  |  |  |
Shares granted and outstanding, Vesting percentage |  |  |  | 200.00% |
Performance Based Restricted Stock Unit [Member] | Minimum [Member] |  |  |  |  |
Share-based Payment Award |  |  |  |  |
Shares granted and outstanding, Vesting percentage |  |  |  | 0.00% |
Share-Based Payment Arrangement, Option [Member] |  |  |  |  |
Share-based Payment Award |  |  |  |  |
Share based compensation arrangement by share-based payment award, expiration period |  |  |  | 10 years |
Share based compensation arrangement by share-based payment award, award requisite service period |  |  |  | 1 year |

X
- Definition Amount of noncash expense for share-based payment arrangement. + 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 (a) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585 + Details
Name: | us-gaap_ShareBasedCompensation
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardRequisiteServicePeriod1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- 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
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of additional shares authorized for issuance under share-based payment arrangement. + References No definition available. + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage of vesting of award under share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
Name: | us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
Name: | us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Vesting cap if TSR is negative. + References No definition available. + Details
Name: | wetf_VestingCapIfTsrisNegative
Namespace Prefix: | wetf_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

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

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

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

X
- Details
Name: | srt_StatementScenarioAxis=wetf_At100thPercentileForGrantsMadeIn2019And2020Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementScenarioAxis=wetf_At85thPercentileForGrantsMadeIn2021Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | us-gaap_AwardTypeAxis=wetf_PerformanceBasedRestrictedStockUnitMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AwardTypeAxis=us-gaap_EmployeeStockOptionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |