Fair value measurement - Contingent consideration, Contingent copper consideration, continuity schedule (Details) - USD ($) $ in Thousands |
6 Months Ended | |
|---|---|---|
Jun. 30, 2025 |
Jun. 30, 2024 |
|
| Continuity schedule | ||
| Balance as of beginning of period | $ 141,711 | |
| Balance as of end of period | 166,105 | |
| Contingent copper consideration | ||
| Continuity schedule | ||
| Balance as of beginning of period | 94,050 | $ 84,200 |
| Change in fair value | 25,540 | 10,200 |
| Balance as of end of period | $ 119,590 | $ 94,400 |