v3.23.1
Equity Method Investments - Investments In Equity Method Investments (Details) - USD ($)
$ in Millions
12 Months Ended
Aug. 04, 2021
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Schedule of Equity Method Investments [Line Items]        
Balance as of January 1   $ 19.4 $ 62.7  
Funding received from shareholder loan   0.0 (46.5) $ 25.5
Income / (loss) on a percentage basis   1.2 16.1 9.5
Cancellation of Opex performance guarantee     (5.9)  
Disposal of investment     (7.0)  
Balance as of December 31   20.6 19.4 62.7
Opex        
Schedule of Equity Method Investments [Line Items]        
Ownership percentage sold 49.00%      
Perfomex        
Schedule of Equity Method Investments [Line Items]        
Balance as of January 1   16.9 48.0  
Funding received from shareholder loan     (31.6)  
Income / (loss) on a percentage basis   0.0 0.5  
Cancellation of Opex performance guarantee     0.0  
Disposal of investment     0.0  
Balance as of December 31   16.9 16.9 48.0
Funding provided by shareholder loans   9.8    
Ownership percentage sold 49.00%      
Perfomex II        
Schedule of Equity Method Investments [Line Items]        
Balance as of January 1   2.5 9.5  
Funding received from shareholder loan     (9.5)  
Income / (loss) on a percentage basis   1.2 2.5  
Cancellation of Opex performance guarantee     0.0  
Disposal of investment     0.0  
Balance as of December 31   3.7 2.5 9.5
Ownership percentage sold 49.00%      
Opex        
Schedule of Equity Method Investments [Line Items]        
Balance as of January 1   0.0 5.2  
Funding received from shareholder loan     (3.7)  
Income / (loss) on a percentage basis   0.0 14.1  
Cancellation of Opex performance guarantee $ (5.9)   (5.9)  
Disposal of investment     (9.7)  
Balance as of December 31   0.0 0.0 5.2
Ownership percentage sold 49.00%      
Akal        
Schedule of Equity Method Investments [Line Items]        
Balance as of January 1   0.0 0.0  
Funding received from shareholder loan     (1.7)  
Income / (loss) on a percentage basis   0.0 (1.0)  
Cancellation of Opex performance guarantee     0.0  
Disposal of investment     2.7  
Balance as of December 31   $ 0.0 $ 0.0 $ 0.0
Ownership percentage sold 49.00%