Supplemental Financial Information (Other Operating (Income) Expense, Net) (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
UTIS fire
Professional services	$ 0.0	$ 0.2	$ 0.0	$ 0.5
Insurance recoveries	0.0	(6.2)	0.0	(6.7)
Total UTIS fire	0.0	(6.0)	0.0	(6.2)
(Gain) loss on sale or disposal of property, plant and equipment	0.0	(0.5)	0.0	(0.5)
Other operating (income) expense, net	$ 0.0	$ (6.5)	$ 0.0	$ (6.7)

Catastrophic Event [Abstract]

No definition available.

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- Definition

Amount of gain (loss) on sale or disposal of assets, including but not limited to property plant and equipment, intangible assets and equity in securities of subsidiaries or equity method investee.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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-Section 45
-Paragraph 28
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-Publisher FASB
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- Definition

The amount recovered from insurance. These recoveries reduce costs and losses that are reported as a separate line item under operating expenses.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 220
-SubTopic 10
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-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(3))
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- Definition

Amount of excess (deficiency) of insurance recovery over the loss incurred from an insured event.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 450
-SubTopic 30
-Name Accounting Standards Codification
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- Definition

The net amount of other operating income and expenses, the components of which are not separately disclosed on the income statement, from items that are associated with the entity's normal revenue producing operations.

+ References

No definition available.

+ Details

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- Definition

A fee charged for services from professionals such as doctors, lawyers and accountants. The term is often expanded to include other professions, for example, pharmacists charging to maintain a medicinal profile of a client or customer.

+ References

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-SubTopic 10
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-Paragraph 1
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