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Equity Method Investment in ARO - Schedule of Related Parties (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Dec. 31, 2022
Schedule of Equity Method Investments [Line Items]      
Amounts receivable (1) $ 16.9   $ 12.0
Contract liabilities(2) 8.9   16.7
Accounts payable(2) 53.4   43.2
Carrying value 261.0   254.0
Non-cash amortization 7.0 $ 7.7  
ARO      
Schedule of Equity Method Investments [Line Items]      
Principal amount 402.7   402.7
Discount (141.7)   (148.7)
Carrying value 261.0   254.0
Interest receivable 7.5   $ 0.0
Interest income 7.5 2.8  
Non-cash amortization 7.0 7.7  
Total interest income on the Notes Receivable from ARO $ 14.5 $ 10.5