Goodwill and Other Intangible Assets (Intangible Assets) (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2025	Dec. 31, 2024
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 281.9	$ 270.6
Indefinite-lived other intangible asset, gross carrying amount	4.5	4.1
Total other intangible assets, gross carrying amount	286.4	274.7
Accumulated Impairment	4.5
Accumulated Amortization	176.1	164.4
Net Carrying Amount	105.8	106.2
Indefinite-lived other intangible asset, net carrying amount	0.0	4.1
Total other intangible assets, net carrying amount	105.8	110.3
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	182.0	175.9
Accumulated Amortization	102.2	96.1
Net Carrying Amount	79.8	79.8
Technology
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	79.6	75.6
Accumulated Amortization	65.8	60.6
Net Carrying Amount	13.8	15.0
Trademarks and trade names
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	20.3	19.1
Accumulated Amortization	8.1	7.7
Net Carrying Amount	$ 12.2	$ 11.4