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Goodwill and Other Intangible Assets (Intangible Assets) (Details) - USD ($)
$ in Millions
Mar. 31, 2025
Dec. 31, 2024
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount $ 274.3 $ 270.6
Indefinite-lived other intangible asset 4.3 4.1
Total other intangible assets, gross carrying amount 278.6 274.7
Accumulated Amortization 169.0 164.4
Net Carrying Amount 105.3 106.2
Total other intangible assets, net carrying amount 109.6 110.3
Customer relationships    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 177.9 175.9
Accumulated Amortization 98.6 96.1
Net Carrying Amount 79.3 79.8
Technology    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 76.9 75.6
Accumulated Amortization 62.5 60.6
Net Carrying Amount 14.4 15.0
Trademarks and trade names    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 19.5 19.1
Accumulated Amortization 7.9 7.7
Net Carrying Amount $ 11.6 $ 11.4