v3.25.2
Accrued expenses (Details) - USD ($)
$ in Thousands
Jun. 30, 2025
Dec. 31, 2024
Accrued expenses    
Operating expenses $ 2,928 $ 3,629
Interest expenses 4,969 4,936
EU ETS current liability $ 4,075  
Environmental Loss Contingency, Current, Statement of Financial Position [Extensible Enumeration] Total accrued expenses  
Other expenses $ 6,455 2,900
Total accrued expenses $ 18,427 $ 11,465