v3.23.1
Derivatives - Fair Value of Commodity Swap Assets and Liabilities (Details) - USD ($)
$ in Millions
Mar. 31, 2023
Dec. 31, 2022
Derivatives    
Fair value of derivative assets—current $ 68.5 $ 68.4
Fair value of derivative assets—long-term 13.6 2.9
Fair value of derivative liabilities—current (41.1) (42.9)
Fair value of derivative liabilities—long-term (18.3) (2.7)
Commodity swaps    
Derivatives    
Fair value of derivative assets—current 65.4 68.4
Fair value of derivative assets—long-term 13.6 2.9
Fair value of derivative liabilities—current (41.1) (42.9)
Fair value of derivative liabilities—long-term (13.6) (2.7)
Net fair value of commodity derivatives $ 24.3 $ 25.7