Balance Sheet Components - Summary of Property and Equipment, Net (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Property Plant And Equipment [Line Items]
Total property and equipment	$ 68,311	$ 68,148
Less: accumulated depreciation and amortization	(34,951)	(32,290)
Total property and equipment, net	33,360	35,858
Leasehold Improvements
Property Plant And Equipment [Line Items]
Total property and equipment	26,221	26,159
Laboratory Equipment
Property Plant And Equipment [Line Items]
Total property and equipment	19,680	19,770
Manufacturing Equipment
Property Plant And Equipment [Line Items]
Total property and equipment	19,756	17,738
Construction in Progress
Property Plant And Equipment [Line Items]
Total property and equipment	0	1,915
Computer Equipment and Software
Property Plant And Equipment [Line Items]
Total property and equipment	1,752	1,664
Furniture and Fixtures
Property Plant And Equipment [Line Items]
Total property and equipment	$ 902	$ 902