Property and Equipment - Summary of Property and Equipment (Details) - USD ($) $ in Thousands |
Sep. 30, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Property Plant And Equipment [Line Items] | ||
| Total property and equipment | $ 67,483 | $ 66,530 |
| Less accumulated depreciation | (22,355) | (16,073) |
| Property and equipment, net | 45,128 | 50,457 |
| Lab and Office Equipment Under Finance Right of Use Asset | ||
| Property Plant And Equipment [Line Items] | ||
| Total property and equipment | 8,802 | 7,773 |
| Lab Equipment | ||
| Property Plant And Equipment [Line Items] | ||
| Total property and equipment | 11,388 | 10,526 |
| Computer Equipment | ||
| Property Plant And Equipment [Line Items] | ||
| Total property and equipment | 966 | 966 |
| Furniture & Fixtures | ||
| Property Plant And Equipment [Line Items] | ||
| Total property and equipment | 3,414 | 3,255 |
| Leasehold Improvements | ||
| Property Plant And Equipment [Line Items] | ||
| Total property and equipment | 42,913 | 44,010 |
| Assets Not Yet in Service | ||
| Property Plant And Equipment [Line Items] | ||
| Total property and equipment | $ 0 | $ 0 |