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Investments and fair value measurements - Summary of the Changes in the Fair Value of Level 3 Financial Instruments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Strategic Investments
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	$ 10,311	$ 12,104	$ 10,311	$ 12,104
Vesting and remeasurement of SARs	0	0	0	0
Exercises of SARs		0	0	0
Unrealized loss on strategic investments	(10,311)	(1,793)	(10,311)	(1,793)
Ending balance	0	10,311	0	10,311
Stock Appreciation Rights (SARs)
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	22	264	48	462
Vesting and remeasurement of SARs	(6)	19	(25)	(179)
Exercises of SARs		(253)	(7)	(253)
Unrealized loss on strategic investments	0	0	0	0
Ending balance	$ 16	$ 30	$ 16	$ 30

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- Definition

Fair Value, Measurement With Unobservable Inputs Reconciliation, Recurring Basis, Liability, Vesting And Remeasurement Of Share Based Award

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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- Definition

Amount of gain (loss) recognized in income from asset measured at fair value on recurring basis using unobservable input (level 3).

+ References

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-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
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-Topic 820
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Amount of settlements of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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-Topic 820
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Fair value of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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