Property and Equipment, net - Summary of Property and Equipment, Net (Detail) - USD ($) $ in Thousands |
Jun. 30, 2024 |
Dec. 31, 2023 |
|---|---|---|
| Property, Plant and Equipment [Line Items] | ||
| Total property and equipment, gross | $ 206,101 | $ 205,378 |
| Accumulated depreciation | (63,070) | (53,433) |
| Total property and equipment, net | 143,031 | 151,945 |
| Computer Equipment [Member] | ||
| Property, Plant and Equipment [Line Items] | ||
| Total property and equipment, gross | 3,739 | 3,739 |
| Furniture, Fixtures and Other [Member] | ||
| Property, Plant and Equipment [Line Items] | ||
| Total property and equipment, gross | 8,545 | 8,109 |
| Laboratory Equipment [Member] | ||
| Property, Plant and Equipment [Line Items] | ||
| Total property and equipment, gross | 41,903 | 41,411 |
| Leasehold Improvements [Member] | ||
| Property, Plant and Equipment [Line Items] | ||
| Total property and equipment, gross | 143,260 | 143,260 |
| Construction Work in Process [Member] | ||
| Property, Plant and Equipment [Line Items] | ||
| Total property and equipment, gross | $ 8,654 | $ 8,859 |