Balance Sheet Details - Schedule of Property and Equipment, Net (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Property Plant And Equipment [Line Items]
Total property and equipment	$ 214,319	$ 88,898
Less: accumulated depreciation and amortization	(16,274)	(9,272)
Property and equipment, net	198,045	79,626
Manufacturing facility and equipment construction-in-progress
Property Plant And Equipment [Line Items]
Total property and equipment	151,785	51,815
Lab and manufacturing equipment
Property Plant And Equipment [Line Items]
Total property and equipment	55,541	33,244
Furniture and equipment
Property Plant And Equipment [Line Items]
Total property and equipment	1,608	1,608
Computers, computer software and office equipment
Property Plant And Equipment [Line Items]
Total property and equipment	1,001	771
Leasehold improvements
Property Plant And Equipment [Line Items]
Total property and equipment	$ 4,384	$ 1,460