v3.25.0.1
Material Accounting Policies - Critical accounting judgments and key sources of estimation uncertainty (Details)
$ in Thousands
 12 Months Ended
Dec. 31, 2024
USD ($)
item
Dec. 31, 2023
USD ($)
Dec. 31, 2022
USD ($)
Impairment of vessels      
Annual escalation factor for operating expenses (as a percent) 1.00%    
Discount rate used to estimate future cash flows 7.99%    
Impairment loss | $ $ 8,674 $ 142 $ 32,471
Vessels      
Impairment of vessels      
Property, plant and equipment and right-of-use assets | $ $ 1,398,232 $ 1,595,964  
Property, plant and equipment owned | TFDE vessels      
Impairment of vessels      
Discount rate used to estimate future cash flows 8.39%    
Property, plant and equipment owned | Steam vessels      
Impairment of vessels      
Discount rate used to estimate future cash flows 8.79%    
Number of vessels for which recoverable amount (value in use) is lower than carrying amount 2    
Right-of-use assets      
Impairment of vessels      
Number of vessels with indicators of impairment 3    
Right-of-use assets | TFDE vessels      
Impairment of vessels      
Number of vessels sold and leased back 3    
Number of vessels with indicators of impairment 2    
Number of vessels for which recoverable amount (value in use) is lower than carrying amount 1    
Right-of-use assets | Steam vessels      
Impairment of vessels      
Number of vessels sold and leased back 1    
Number of vessels with indicators of impairment 1