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Income Taxes - Uncertain Income Tax Positions (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Unrecognized Tax Benefits [Roll Forward]      
Balance at beginning of year $ 51.2 $ 46.1 $ 41.9
Increases related to positions taken in the current year 8.6 2.4 4.8
Increases and decreases related to positions taken in prior years (1.2)    
Increases and decreases related to positions taken in prior years   3.5 2.9
Decreases related to lapse of statutes of limitations (5.5) (0.8) (3.5)
Settlements during the current year 0.0 0.0 0.0
Decreases for tax positions on dispositions 0.0 0.0 0.0
Balance at end of year 53.1 51.2 46.1
Offsetting non-current deferred tax asset $ 10.5 $ 12.9 $ 12.8