Goodwill and Intangible Assets (Summary Of Intangible Assets) (Details) - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023	Dec. 31, 2022
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted  Average Amortization Period of Finite Lived Assets (in years)	18 years
Gross Asset	$ 814.1	$ 666.4
Accumulated Amortization	370.5	357.5
Net	$ 443.6	308.9	$ 344.9
Intellectual property rights
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted  Average Amortization Period of Finite Lived Assets (in years)	11 years 3 months 18 days
Gross Asset	$ 66.2	62.2
Accumulated Amortization	15.0	15.0
Net	$ 51.2	47.2
Customer relationships and backlog
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted  Average Amortization Period of Finite Lived Assets (in years)	18 years 10 months 24 days
Gross Asset	$ 611.7	504.4
Accumulated Amortization	277.5	269.5
Net	$ 334.2	234.9
Developed technology
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted  Average Amortization Period of Finite Lived Assets (in years)	6 years 10 months 24 days
Gross Asset	$ 63.6	26.3
Accumulated Amortization	22.6	21.2
Net	$ 41.0	5.1
Other
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted  Average Amortization Period of Finite Lived Assets (in years)	9 years 10 months 24 days
Gross Asset	$ 72.6	73.5
Accumulated Amortization	55.4	51.8
Net	$ 17.2	$ 21.7