v3.25.2
Financial instruments - fair values and risk management - Reconciliation from the opening balances to the closing balances for financial liabilities (Details) - USD ($)
$ in Thousands
 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Measurement of fair values    
Liabilities at beginning of period $ 373,725  
Net change in fair value (100) $ (265)
Liabilities at end of period 339,610  
Share warrant obligation | Level 3    
Measurement of fair values    
Liabilities at beginning of period 365 1,278
Net change in fair value (100) (265)
Liabilities at end of period 265 1,013
Put option liability | Level 3    
Measurement of fair values    
Liabilities at beginning of period 15,002 28,995
Net change in fair value   (13,993)
Liabilities at end of period $ 15,002 $ 15,002