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Income Taxes - Schedule of Income Tax Expense (Benefit) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Current:      
Federal $ 0.0 $ 0.0 $ 0.0
State 3.1 1.4 1.5
Deferred:      
Federal 114.6 (1.5) 17.5
State 16.9 (0.2) 4.3
Total income tax expense (benefit) $ 134.6 $ (0.3) $ 23.3