Balance sheet details - Schedule of Property and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Property And Equipment [Line Items]
Property and equipment, gross	$ 7,681	$ 8,092
Less accumulated depreciation and amortization	(6,078)	(5,364)
Total	1,603	2,728
Furniture Fixtures and Office Equipment
Property And Equipment [Line Items]
Property and equipment, gross	$ 1,721	$ 2,140
Laboratory Equipment
Property And Equipment [Line Items]
Property and equipment useful life	5 years	5 years
Property and equipment, gross	$ 2,280	$ 2,265
Leasehold Improvements
Property And Equipment [Line Items]
Property and equipment, gross	$ 3,680	$ 3,687
Minimum | Furniture Fixtures and Office Equipment
Property And Equipment [Line Items]
Property and equipment useful life	3 years	3 years
Minimum | Leasehold Improvements
Property And Equipment [Line Items]
Property and equipment useful life	2 years	2 years
Maximum | Furniture Fixtures and Office Equipment
Property And Equipment [Line Items]
Property and equipment useful life	7 years	7 years
Maximum | Leasehold Improvements
Property And Equipment [Line Items]
Property and equipment useful life	3 years	3 years