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Deferred Consideration - Gold Payments - Schedule of Deferred Consideration (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
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Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
Contractual gold payments | $ 1,583 | $ 4,446 | $ 6,069 | $ 8,896
Contractual gold payments—gold ounces paid | 792 | 2,375 | 3,167 | 4,750
Gain/(loss) on revaluation/termination of deferred consideration—gold payments | $ 41,361 | $ 2,311 | $ 61,953 | $ (14,707)

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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