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Segment Reporting - Capital Expenditures (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Segment Reporting Information [Line Items]
Other Nonoperating Income (Expense)	$ (0.2)	$ (21.6)
Payments for (Proceeds from) Productive Assets	20.4	20.4
Operating Segments
Segment Reporting Information [Line Items]
Other Nonoperating Income (Expense)	15.1	25.3
Payments for (Proceeds from) Productive Assets	8.2	6.6
EES
Segment Reporting Information [Line Items]
Other Nonoperating Income (Expense)	4.4	5.1
Payments for (Proceeds from) Productive Assets	1.2	1.3
CSS
Segment Reporting Information [Line Items]
Other Nonoperating Income (Expense)	10.9	19.4
Payments for (Proceeds from) Productive Assets	1.6	3.9
UBS
Segment Reporting Information [Line Items]
Other Nonoperating Income (Expense)	0.2	0.8
Payments for (Proceeds from) Productive Assets	5.4	1.4
Corporate Segment
Segment Reporting Information [Line Items]
Other Nonoperating Income (Expense)	14.9	3.7
Payments for (Proceeds from) Productive Assets	$ 12.2	$ 13.8

X

- Definition

Amount of income (expense) related to nonoperating activities, classified as other.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4A
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480434/815-10-50-4A

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-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(9))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2

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