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Accumulated Other Comprehensive Loss ("AOCL") (Tables)

9 Months Ended

Sep. 30, 2025

Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]

Schedule of accumulated balances for each component of AOCI

Components of AOCL:						September 30, 2025						December 31, 2024
Defined benefit plan liabilities						$	(102.1)					$	(107.0)
Unrealized gain on financial instruments						1.2						1.4
Other comprehensive loss before income tax effect						(100.9)						(105.6)
Income tax effect(1)						2.3						2.3
Accumulated other comprehensive loss						$	(98.6)					$	(103.3)

(1)The allocation of the income tax effect to the components of other comprehensive loss is as follows:

						September 30, 2025						December 31, 2024
Defined benefit plan liabilities						$	2.6					$	2.6
Unrealized gain on financial instruments						(0.3)						(0.3)

The following table summarizes the changes in the accumulated balances for each component of AOCL:

			Defined benefit plan and other postretirement liabilities						Unrealized gain on financial instruments						Total, net of tax
Balance, June 30, 2025			$	(101.3)					$	1.2					$	(100.1)
Net amount reclassified to net income (loss)			1.5						—						1.5
Balance, September 30, 2025			$	(99.8)					$	1.2					$	(98.6)
Balance, June 30, 2024			$	(99.5)					$	1.4					$	(98.1)
Net amount reclassified to net income (loss)			1.7						—						1.7
Balance, September 30, 2024			$	(97.8)					$	1.4					$	(96.4)
Balance, December 31, 2024			$	(104.6)					$	1.3					$	(103.3)
Net amount reclassified to net income (loss)			4.8						(0.1)						4.7
Balance, September 30, 2025			$	(99.8)					$	1.2					$	(98.6)
Balance, December 31, 2023			$	(99.4)					$	1.5					$	(97.9)
Other comprehensive loss before reclassifications			(3.4)						—						(3.4)
Net amount reclassified to net income (loss)			5.0						(0.1)						4.9
Balance, September 30, 2024			$	(97.8)					$	1.4					$	(96.4)

Schedule of reclassification out of AOCI

Reclassifications out of AOCL were included in the Consolidated Statements of Operations as follows:

												Three months ended September 30,												Nine months ended September 30,
AOCL Components						Location						2025						2024						2025						2024
Defined benefit plan and other postretirement liabilities						Cost of goods sold						$	0.6					$	0.7					$	2.2					$	2.3
						Selling, general and administrative expenses						0.1						0.2						0.4						0.5
						Other operating expense - net						0.8						0.8						2.2						2.2
						Income tax effect						—						—						—						—
						Net of tax						$	1.5					$	1.7					$	4.8					$	5.0
Unrealized gain on financial instruments						Cost of goods sold						$	—					$	—					$	(0.1)					$	(0.1)
						Income tax effect						—						—						—						—
						Net of tax						$	—					$	—					$	(0.1)					$	(0.1)

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Tabular disclosure of information about items reclassified out of accumulated other comprehensive income (loss).

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- Definition

Tabular disclosure of the components of accumulated other comprehensive income (loss).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 14A
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482790/220-10-45-14A

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 830
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481674/830-30-50-1

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 830
-SubTopic 30
-Name Accounting Standards Codification
-Section 45
-Paragraph 20
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481694/830-30-45-20

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