Deferred royalty obligation - Schedule of Royalty Obligation (Details) - USD ($) $ in Thousands |
6 Months Ended | 12 Months Ended |
|---|---|---|
Jun. 30, 2025 |
Dec. 31, 2024 |
|
| Deferred Royalty Obligation [Roll Forward] | ||
| Beginning balance | $ 326,659 | $ 309,613 |
| Less: royalty payments | 3,220 | 5,384 |
| Plus: interest expense | 17,168 | 33,608 |
| Less: cumulative catch-up adjustment, Other, net | 196 | 11,178 |
| Ending balance | $ 340,411 | $ 326,659 |