Nature of Operations and Significant Accounting Policies (Summary of Intangible Assets) (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Schedule of Finite-Lived and Indefinite-Lived Intangible Assets By Major Class [Line Items]
Weighted Average Amortization Period of Finite Lived Assets (in years)	18 years
Gross Asset	$ 666.4	$ 663.6
Accumulated Amortization	357.5	318.7
Net	$ 308.9	344.9	$ 388.5	$ 433.3
Intellectual property rights
Schedule of Finite-Lived and Indefinite-Lived Intangible Assets By Major Class [Line Items]
Weighted Average Amortization Period of Finite Lived Assets (in years)	12 years 7 months 6 days
Gross Asset	$ 62.2	62.0
Accumulated Amortization	15.0	14.0
Net	$ 47.2	48.0
Customer relationships and backlog
Schedule of Finite-Lived and Indefinite-Lived Intangible Assets By Major Class [Line Items]
Weighted Average Amortization Period of Finite Lived Assets (in years)	18 years 9 months 18 days
Gross Asset	$ 504.4	502.9
Accumulated Amortization	269.5	242.0
Net	$ 234.9	260.9
Other
Schedule of Finite-Lived and Indefinite-Lived Intangible Assets By Major Class [Line Items]
Weighted Average Amortization Period of Finite Lived Assets (in years)	10 years
Gross Asset	$ 99.8	98.7
Accumulated Amortization	73.0	62.7
Net	$ 26.8	$ 36.0