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Interest-bearing loans and borrowings - Transaction and other financial costs (Details) - USD ($)
 12 Months Ended
Nov. 07, 2023
Dec. 31, 2023
Dec. 31, 2022
Dec. 06, 2022
Dec. 16, 2016
Disclosure of detailed information about borrowings [line items]          
Amortization of financing costs   $ 16,500,000      
Notional amount   93,607,000 $ 536,532,000    
Other financial charges   13,500,000 5,900,000    
Secured vessels Revolving loan due 2028          
Disclosure of detailed information about borrowings [line items]          
Notional amount   377,000,000.0   $ 377,000,000 $ 377,000,000
$307 million revolving credit facility          
Disclosure of detailed information about borrowings [line items]          
Notional amount       307,000,000  
$70.0 million term loan facility          
Disclosure of detailed information about borrowings [line items]          
Notional amount       70,000,000  
Upsize term loan facility | Maximum          
Disclosure of detailed information about borrowings [line items]          
Notional amount       $ 70,000,000  
Global Refinancing facility          
Disclosure of detailed information about borrowings [line items]          
Amortization of financing costs $ 13,800,000        
Notional amount 1,290,000,000        
Sale and leaseback agreement | Suedmax Cypress          
Disclosure of detailed information about borrowings [line items]          
Amortization of financing costs $ 700,000        
Other financial liabilities          
Disclosure of detailed information about borrowings [line items]          
Interest expense   134,600,000 85,400,000    
Lease liabilities          
Disclosure of detailed information about borrowings [line items]          
Interest expense   $ 600,000 $ 1,200,000