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Accounts receivable - Narrative (Details) - USD ($) $ in Thousands			3 Months Ended
	Apr. 01, 2026	Mar. 31, 2026	Mar. 31, 2026	Mar. 31, 2025	Dec. 31, 2025
Accounts, Notes, Loans and Financing Receivable [Line Items]
Expected credit loss reversal		$ 5,000	$ 5,000	$ 0
Provision for expected credit loss		$ 5,304	$ 5,304		$ 10,304
Disposal Group, Disposed of by Sale, Not Discontinued Operations | VRB China | Subsequent events | VRB
Accounts, Notes, Loans and Financing Receivable [Line Items]
Proceeds from sale of equity method investment	$ 5,000

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- 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 310
-SubTopic 20
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- Definition

Amount of allowance for credit loss on accounts receivable, classified as current.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 210
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- Definition

The cash inflow associated with the sale of equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.

+ References

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Amount of expense (reversal of expense) for expected credit loss on accounts receivable.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
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