Significant agreements - Revenue recognition due to changes in contract assets and liabilities (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2024 |
Dec. 31, 2023 |
Dec. 31, 2022 |
|
| Significant agreements | |||
| Revenue recognized based on proportional performance | $ 24,266 | $ 19,160 | $ 12,358 |
| Revenue recognized based on expiration of material rights | 10,576 | 7,816 | 1,433 |
| Revenue recognized based on changes in transaction price | 433 | 672 | |
| Total | $ 35,275 | $ 26,976 | $ 14,463 |