License and Research Agreements - GeneTx Biotherapeutics LLC - Additional Information (Details) - USD ($) $ in Millions |
6 Months Ended | 12 Months Ended | 67 Months Ended |
|---|---|---|---|
Jun. 30, 2026 |
Dec. 31, 2024 |
Jun. 30, 2026 |
|
| Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] | |||
| Regulatory milestone payments achieved | $ 30 | $ 9 | |
| Future milestones payable | $ 75 | ||
| GeneTx [Member] | |||
| Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] | |||
| Eligible future milestone payments | 85 | 85 | |
| Texas A&M University [Member] | |||
| Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] | |||
| Clinical Milestone Aggregate | 1 | 1 | |
| Texas A&M University [Member] | Maximum | |||
| Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] | |||
| Future contingent milestone payments | 23 | 23 | |
| Annual license fee payment | $ 2 | $ 2 |