Balance Sheets Components - Schedule of Property and Equipment, Net (Details) - USD ($) $ in Thousands |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Property Plant And Equipment [Line Items] | ||
| Property and equipment, gross | $ 188,177 | $ 142,320 |
| Accumulated depreciation | (83,063) | (59,845) |
| Total property and equipment, net | 105,114 | 82,475 |
| Lab and manufacturing equipment | ||
| Property Plant And Equipment [Line Items] | ||
| Property and equipment, gross | 158,909 | 119,964 |
| Computer equipment | ||
| Property Plant And Equipment [Line Items] | ||
| Property and equipment, gross | 3,928 | 3,833 |
| Furniture and fixtures | ||
| Property Plant And Equipment [Line Items] | ||
| Property and equipment, gross | 1,152 | 1,167 |
| Construction in progress | ||
| Property Plant And Equipment [Line Items] | ||
| Property and equipment, gross | 15,885 | 9,538 |
| Leasehold improvements | ||
| Property Plant And Equipment [Line Items] | ||
| Property and equipment, gross | $ 8,303 | $ 7,818 |