Balance Sheets Components - Schedule of Property and Equipment Net (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 170,943	$ 142,320
Accumulated depreciation	(71,082)	(59,845)
Total property and equipment, net	99,861	82,475
Lab and manufacturing equipment
Property Plant And Equipment [Line Items]
Property and equipment, gross	149,828	119,964
Computer equipment
Property Plant And Equipment [Line Items]
Property and equipment, gross	3,988	3,833
Furniture and fixtures
Property Plant And Equipment [Line Items]
Property and equipment, gross	1,177	1,167
Construction in progress
Property Plant And Equipment [Line Items]
Property and equipment, gross	7,667	9,538
Leasehold improvements
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 8,283	$ 7,818