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Segment reporting - Narrative (Details)
$ in Thousands
12 Months Ended
Jun. 07, 2022
USD ($)
Mar. 24, 2022
USD ($)
Dec. 31, 2023
USD ($)
segment
clients
Dec. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Jun. 21, 2022
Disclosure of operating segments [line items]            
Number of operating segments | segment     2      
Acquisitions     $ 370,155 $ 628,320 $ 436,680  
Consideration paid (received)   $ (21,500)        
Intangible assets (Note 9)     $ 14,194 15,746 186  
TI Asia Ltd and TI Africa Ltd            
Disclosure of operating segments [line items]            
Proportion of ownership interest in joint venture 50.00%          
TI Asia Ltd and TI Africa Ltd            
Disclosure of operating segments [line items]            
Percentage of voting equity interests acquired 50.00%   50.00%     50.00%
Consideration paid (received) $ 129,900          
TI Africa Ltd            
Disclosure of operating segments [line items]            
Percentage of voting equity interests acquired 50.00%          
TI Asia Ltd            
Disclosure of operating segments [line items]            
Percentage of voting equity interests acquired 50.00%          
Vessels            
Disclosure of operating segments [line items]            
Acquisitions     $ 295,568 $ 448,850 $ 56,111  
Vessels | FSO Asia and Africa            
Disclosure of operating segments [line items]            
Acquisitions $ 223,100          
Intangible assets (Note 9) $ 16,600          
Tankers            
Disclosure of operating segments [line items]            
Contract duration of project (less than)     2 years      
FSO            
Disclosure of operating segments [line items]            
Number of clients | clients     1      
Customer one | Tankers            
Disclosure of operating segments [line items]            
Percentage of entity's revenue     6.00% 8.00% 11.00%  
Customer two | Tankers            
Disclosure of operating segments [line items]            
Percentage of entity's revenue         10.00%