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Income Taxes - Reconciliation of Unrecognized Tax Benefits (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 period $ 29.3 $ 26.2 $ 26.6
Additions based on tax positions related to the current year 2.1 1.8 1.7
Additions for tax positions of prior years 0.0 2.0 1.2
Reductions for tax positions of prior years (0.8) 0.0 (1.5)
Settlement of tax audits (1.1) 0.0 0.0
Reductions due to lapsed statute of limitations (1.8) (0.7) (1.8)
Balance at end of period $ 27.7 $ 29.3 $ 26.2