Balance Sheet Components - Summary of Property and Equipment, Net (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Property Plant And Equipment [Line Items]
Total property and equipment	$ 0	$ 25,837
Less: accumulated depreciation	0	(3,207)
Total property and equipment, net	0	22,630
Furniture and Fixtures
Property Plant And Equipment [Line Items]
Total property and equipment	0	321
Computers and Network Equipment
Property Plant And Equipment [Line Items]
Total property and equipment	0	251
Lab Equipment
Property Plant And Equipment [Line Items]
Total property and equipment	0	12,521
Leasehold Improvements
Property Plant And Equipment [Line Items]
Total property and equipment	0	304
Construction in Progress
Property Plant And Equipment [Line Items]
Total property and equipment	$ 0	$ 12,440