Balance Sheets Components - Schedule of Property and Equipment Net (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 196,064	$ 188,177
Accumulated depreciation	(89,403)	(83,063)
Total property and equipment, net	106,661	105,114
Lab and manufacturing equipment
Property Plant And Equipment [Line Items]
Property and equipment, gross	166,507	158,909
Computer equipment
Property Plant And Equipment [Line Items]
Property and equipment, gross	4,032	3,928
Furniture and fixtures
Property Plant And Equipment [Line Items]
Property and equipment, gross	1,196	1,152
Construction in progress
Property Plant And Equipment [Line Items]
Property and equipment, gross	16,095	15,885
Leasehold improvements
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 8,234	$ 8,303