Income taxes - Schedule of Income (Loss) Before Income Taxes, Domestic and Foreign (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Swiss	$ (281,685)	$ (269,621)	$ (145,591)
Non-Swiss	89,945	187,775	93,516
Total income (loss) before income taxes	$ (191,740)	$ (81,846)	$ (52,075)