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Bunker inventory (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2023
USD ($)
tons
Dec. 31, 2022
USD ($)
tons
Disclosure of detailed information about borrowings [line items]    
Fuel inventory purchased (in metric tons) | tons 120,763 208,877
Payment for purchase of inventory $ 72,200 $ 158,800
Bunker inventory 22,511 41,643
Compliant fuel oil inventory on board vessel    
Disclosure of detailed information about borrowings [line items]    
Bunker inventory 0 19,600
Bunker inventory on board vessel    
Disclosure of detailed information about borrowings [line items]    
Bunker inventory $ 22,500 $ 22,000