Income taxes - Components of Loss Before Provision for Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Income Tax Disclosure [Abstract]
United States	$ 458,547	$ 317,169	$ 20,713
Foreign	(12,657)	(29,564)	(37,153)
Income (loss) before provision for (benefit from) income taxes	$ 445,890	$ 287,605	$ (16,440)