Condensed Consolidated Balance Sheet Components - Property and Equipment, Net (Details) - USD ($) $ in Thousands |
Sep. 30, 2024 |
Dec. 31, 2023 |
|---|---|---|
| Property, Plant and Equipment [Line Items] | ||
| Property and equipment, gross | $ 39,996 | $ 7,391 |
| Less: accumulated depreciation | (4,859) | (2,679) |
| Total property and equipment, net | 35,137 | 4,712 |
| Construction in progress | ||
| Property, Plant and Equipment [Line Items] | ||
| Property and equipment, gross | 29,072 | 0 |
| Laboratory equipment | ||
| Property, Plant and Equipment [Line Items] | ||
| Property and equipment, gross | 9,417 | 6,470 |
| Office furniture | ||
| Property, Plant and Equipment [Line Items] | ||
| Property and equipment, gross | 314 | 242 |
| Leasehold improvements | ||
| Property, Plant and Equipment [Line Items] | ||
| Property and equipment, gross | 843 | 437 |
| Servers and workstations | ||
| Property, Plant and Equipment [Line Items] | ||
| Property and equipment, gross | $ 350 | $ 242 |