Income taxes - Schedule of Net (Loss) Income Before Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Canada	$ 0	$ (522)
U.S.	(60,692)	(32,755)
Total	$ (60,692)	$ (33,277)