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Retirement Plans and Postretirement Benefits - (Tables)

3 Months Ended

Mar. 31, 2025

Retirement Benefits [Abstract]

Components of Net Periodic Cost of Pension and Other Postretirement Employee Benefit Plans

			Quarter Ended March 31,
Pension Benefit Plans			2025			2024
Service cost			$	0.8		$	0.6
Interest cost			3.0			3.0
Expected return on plan assets			(3.3)			(3.9)
Amortization of actuarial loss			0.2			—
Net periodic cost			$	0.6		$	(0.3)

									Quarter Ended March 31,
Other Postretirement Employee Benefit Plans															2025			2024
Service cost															$	—		$	0.1
Interest cost															0.6			0.7
Amortization of actuarial gain															(0.1)			(0.1)
Net periodic cost															$	0.5		$	0.6

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- References

No definition available.

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- Definition

Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Subparagraph (q)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480506/715-20-50-5

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 715
-SubTopic 20
-Subparagraph (h)
-Name Accounting Standards Codification
-Paragraph 1
-Section 50
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480506/715-20-50-1

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