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Schedule II - Valuation and Qualifying Accounts and Reserves (Details) - SEC Schedule, 12-09, Allowance, Credit Loss [Member] - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]      
Balance at beginning of year $ 15.5 $ 10.7 $ 9.6
Additions charged to cost and expenses 9.8 6.9 0.3
Write-offs (0.2) (0.4) (0.4)
Recoveries 0.0 0.0 1.2
Other(1) (10.7) (1.7) 0.0
Balance at end of year $ 14.4 $ 15.5 $ 10.7