Balance sheet details - Schedule of Property and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Property Plant And Equipment [Line Items]
Property, plant and equipment, gross	$ 7,933	$ 7,172
Less accumulated depreciation and amortization	(4,257)	(3,070)
Total	3,676	4,102
Furniture Fixtures and Office Equipment
Property Plant And Equipment [Line Items]
Property, plant and equipment, gross	$ 2,123	1,719
Laboratory Equipment
Property Plant And Equipment [Line Items]
Property plant and equipment useful life	5 years
Property, plant and equipment, gross	$ 2,123	1,790
Leasehold Improvements
Property Plant And Equipment [Line Items]
Property, plant and equipment, gross	$ 3,687	$ 3,663
Minimum | Furniture Fixtures and Office Equipment
Property Plant And Equipment [Line Items]
Property plant and equipment useful life	3 years
Minimum | Leasehold Improvements
Property Plant And Equipment [Line Items]
Property plant and equipment useful life	2 years
Maximum | Furniture Fixtures and Office Equipment
Property Plant And Equipment [Line Items]
Property plant and equipment useful life	7 years
Maximum | Leasehold Improvements
Property Plant And Equipment [Line Items]
Property plant and equipment useful life	3 years