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v3.23.1

Deferred Consideration - Schedule of Deferred Consideration (Detail) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2023 | Mar. 31, 2022
Contractual Gold Payments |  | $ 4,486 | $ 4,450
Contractual Gold Payments – gold ounces paid |  | 2,375 | 2,375
Gain/(loss) on revaluation of deferred consideration - gold payments | [1] | $ 20,592 | $ (17,018)
[1] | Gains on revaluation of deferred consideration—gold payments result from a decrease in spot gold prices, a decrease in the forward-looking price of gold, a decrease in the perpetual growth rate and an increase in the discount rate used to compute the present value of the annual payment obligations. Losses on revaluation of deferred consideration—gold payments result from an increase in spot gold prices, an increase in the forward-looking price of gold, an increase in the perpetual growth rate and a decrease in the discount rate used to compute the present value of the annual payment obligations.

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- Definition Contractual gold payments. + References No definition available. + Details
Name: | wt_ContractualGoldPayments
Namespace Prefix: | wt_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Represents Contractual Gold Payments Gold Ounces Paid. + References No definition available. + Details
Name: | wt_ContractualGoldPaymentsGoldOuncesPaid
Namespace Prefix: | wt_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Gain/loss from revaluation of deferred consideration. + References No definition available. + Details
Name: | wt_GainLossFromChangeInDeferredConsideration
Namespace Prefix: | wt_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration