v3.25.2
VESSELS AND CAPITALIZED DRY-DOCKING - Schedule of non-current assets sold (Details)
$ in Millions
 6 Months Ended 12 Months Ended
Jun. 30, 2025
USD ($)
vessel
Jun. 30, 2024
USD ($)
vessel
Dec. 31, 2024
USD ($)
vessel
Disclosure of detailed information about property, plant and equipment [line items]      
Carrying amount of vessels and capitalized dry-docking $ (31.1) $ (12.4) $ (0.0)
Sold last year and paid during the year      
Assets held for sale      
Number of vessels | vessel 1    
Vessels and capitalized dry docking | Sold and delivered during the year      
Disclosure of detailed information about property, plant and equipment [line items]      
Number of vessels | vessel 4 1 4
Vessel sales price $ 78.5 $ 22.7 $ 84.2
Carrying amount of vessels and capitalized dry-docking (59.8) (10.9) (47.0)
Bunker and lube oil cost (2.2) (0.7) (1.5)
Transaction costs (1.6) (0.7) (1.6)
Profit on sale $ 14.9 $ 10.4 34.1
Vessels and capitalized dry docking | Sold and delivered during the year | Individual vessel      
Disclosure of detailed information about property, plant and equipment [line items]      
Vessel sales price     18.9
Transaction costs     $ (0.5)
Vessels and capitalized dry docking | Sold last year and delivered during the year      
Disclosure of detailed information about property, plant and equipment [line items]      
Number of vessels | vessel 0 3 3
Vessel sales price $ 0.0 $ 67.3 $ 67.3
Carrying amount of vessels and capitalized dry-docking 0.0 (47.2) (47.2)
Bunker and lube oil cost 0.0 (2.0) (2.0)
Transaction costs 0.0 (0.9) (0.9)
Profit on sale $ 0.0 $ 17.2 $ 17.2
Vessels and capitalized dry docking | Non-current assets held for sale      
Assets held for sale      
Number of vessels held for sale end of period | vessel 2 1 0