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Schedule II - Valuation and Qualifying Accounts (Details) - Allowance for Credit Losses - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Allowance for credit losses (deducted from accounts receivable):      
Balance at Beginning of Period $ 9.5 $ 9.1 $ 8.0
Additions Charged to Costs and Expenses     0.3
Additions Charged to Costs and Expenses (1.2) (0.2)  
Deductions (0.7) 0.6 0.8
Balance at End of Period $ 7.6 $ 9.5 $ 9.1