Convertible preferred stock and members's/stockholders' equity (deficit) - Schedule of Stock-based Compensation Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Class Of Stock [Line Items]
Stock-based compensation	$ 25,117	$ 3,022	$ 0
Research and Development Expense
Class Of Stock [Line Items]
Stock-based compensation	4,688	740
General and Administrative Expense
Class Of Stock [Line Items]
Stock-based compensation	$ 20,429	$ 2,282