v3.23.1
Gain on Disposals (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Property, Plant and Equipment [Line Items]      
Book value on disposal $ 127.3 $ 4.5 $ 15.7
(Loss)/gain on disposal 4.2 1.2 19.0
Repayments of debt 355.5 0.0 0.0
Proceeds from sale of fixed assets 131.5 5.7 34.7
Gyme      
Property, Plant and Equipment [Line Items]      
Book value on disposal 119.7    
(Loss)/gain on disposal (0.2)    
Repayments of debt 87.0    
Repayments of accrued interest 33.0    
Proceeds from sale of fixed assets 119.5    
Newbuildings      
Property, Plant and Equipment [Line Items]      
Book value on disposal 7.6    
(Loss)/gain on disposal 3.7    
Proceeds from sale of fixed assets 11.3    
Rig Related Equipment      
Property, Plant and Equipment [Line Items]      
Book value on disposal 0.0 0.0 1.7
(Loss)/gain on disposal 0.7 1.3 1.6
Proceeds from sale of fixed assets $ 0.7 1.3 3.3
Balder      
Property, Plant and Equipment [Line Items]      
Book value on disposal   4.5  
(Loss)/gain on disposal   (0.1)  
Proceeds from sale of fixed assets   $ 4.4 3.0
B152      
Property, Plant and Equipment [Line Items]      
Book value on disposal     1.4
(Loss)/gain on disposal     6.5
Proceeds from sale of fixed assets     7.9
Dhabi II      
Property, Plant and Equipment [Line Items]      
Book value on disposal     1.6
(Loss)/gain on disposal     6.3
Proceeds from sale of fixed assets     7.9
Atla      
Property, Plant and Equipment [Line Items]      
Book value on disposal     5.0
(Loss)/gain on disposal     5.0
Proceeds from sale of fixed assets     10.0
MSS1      
Property, Plant and Equipment [Line Items]      
Book value on disposal     2.2
(Loss)/gain on disposal     0.0
Proceeds from sale of fixed assets     2.2
Eir      
Property, Plant and Equipment [Line Items]      
Book value on disposal     3.0
(Loss)/gain on disposal     0.0
Proceeds from sale of fixed assets     3.0
B391      
Property, Plant and Equipment [Line Items]      
Book value on disposal     0.8
(Loss)/gain on disposal     (0.4)
Proceeds from sale of fixed assets     $ 0.4