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Contingencies (Details) € in Thousands, $ in Thousands	1 Months Ended		12 Months Ended
	Jul. 31, 2023 USD ($)	Jul. 31, 2023 EUR (€)	Dec. 31, 2023 USD ($)	Dec. 31, 2023 EUR (€)
Contingencies [Line Items]
Loss contingency acrual	$ 9,272	€ 8,400	$ 16,778	€ 15,200
Amount of deductible			$ 500

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

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 450
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483049/450-30-50-1

+ Details

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Balance Type:	na
Period Type:	duration

X

- Definition

The value (monetary amount) of the award the plaintiff seeks in the legal matter.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 450
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483076/450-20-50-1

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 450
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483076/450-20-50-4

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 450
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 9
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483076/450-20-50-9

+ Details

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Balance Type:	debit
Period Type:	duration

X

- Definition

Loss contingency covered by insurance deductible.

+ References

No definition available.

+ Details

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Namespace Prefix:	wt_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant