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Stock award plan - Share-based compensation expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Stock option plan
Share-based compensation expense	$ 19,243	$ 29,371	$ 37,621	$ 58,186
Unrecognized compensation cost	134,600		$ 134,600
Weighted average remaining service period for recognition of unrecognized compensation cost			2 years 3 months 18 days
Research and development
Stock option plan
Share-based compensation expense	9,428	15,529	$ 18,395	30,842
Selling, general and administrative
Stock option plan
Share-based compensation expense	$ 9,815	$ 13,842	$ 19,226	$ 27,344

X

- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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