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Income Taxes - Components of the Provision for Income Taxes for Continuing Operations (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Current:      
Federal $ 215.2 $ 115.0 $ 17.1
State 52.5 28.1 20.3
Current income taxes 267.7 143.1 37.4
Deferred:      
Federal (104.9) (45.2) 27.5
State (18.1) (15.5) (5.5)
Deferred income taxes (123.0) (60.7) 22.0
Provision for income taxes $ 144.7 $ 82.4 $ 59.4