Balance Sheet Components - Schedule of Property and Equipment Net (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 128,958	$ 126,352
Less accumulated depreciation	(29,649)	(20,743)
Total property and equipment, net	99,309	105,609
Laboratory equipment
Property Plant And Equipment [Line Items]
Property and equipment, gross	43,158	36,533
Computer equipment
Property Plant And Equipment [Line Items]
Property and equipment, gross	2,684	2,545
Furniture and fixtures
Property Plant And Equipment [Line Items]
Property and equipment, gross	2,887	2,852
Leasehold improvements
Property Plant And Equipment [Line Items]
Property and equipment, gross	80,207	84,422
Construction in progress
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 22	$ 0