Collaboration revenue (Additional Information) (Details) - USD ($) $ in Millions |
3 Months Ended | |
|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2025 |
|
| Eli Lilly Collaboration Agreement [Member] | ||
| Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] | ||
| Collaboration recognized revenue | $ 3.2 | $ 1.4 |
| Revenue recognized | 51.6 | |
| Collaboration Agreement [Member] | ||
| Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] | ||
| Contract inception collaboration revenue | $ 1.0 | |