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Other Postretirement Benefit Plans (Tables) - Postretirement Plan

12 Months Ended

Dec. 31, 2024

Post Retirement Benefit Plans

Schedule of Net Periodic Benefit Cost Information and the Related Assumptions Used to Measure the Net Periodic Benefit Cost

The following tables summarize the net periodic benefit cost information and the related assumptions used to measure the net periodic benefit cost for the years ended December 31:

			2024			2023			2022
Components of net periodic credit:
Service cost			$	0.1		$	0.1		$	0.2
Interest cost			1.7			1.9			1.4
Amortization of prior service credit			(8.2)			(8.3)			(10.1)
Recognition of net actuarial gains			(0.5)			(1.0)			(13.1)
Net periodic credit			$	(6.9)		$	(7.3)		$	(21.6)

Schedule of Assumptions Used to Measure the Benefit Obligation for Other Postretirement Benefit Pension Plans

Assumptions:			2024			2023			2022
Discount rate			5.55		%	5.75		%	2.99		%

The following table summarizes assumptions used to measure the benefit obligation for the other postretirement benefit plans at December 31:

Assumptions:			2024			2023
Discount rate			5.83		%	5.55		%

Schedule of Change in Benefit Obligations

			2024			2023
Change in benefit obligation:
Benefit obligation at beginning of year			$	33.7		$	35.5
Service cost			0.1			0.1
Interest cost			1.7			1.9
Actuarial gains			(0.5)			(1.0)
International plan exchange rate change			—			(0.1)
Benefits paid			(1.6)			(2.7)
Benefit obligation at end of year			$	33.4		$	33.7
Funded status at end of year			$	(33.4)		$	(33.7)

Schedule of Amounts Recognized on the Consolidated Balance Sheets

Amounts recognized on the Consolidated Balance Sheets:
Current liabilities			$	(3.6)		$	(3.5)
Non-current liabilities			(29.8)			(30.2)
			$	(33.4)		$	(33.7)

Schedule of Amounts Recognized in Accumulated Other Comprehensive Loss (Income) and Changes in Prior Service Cost Recognized in Accumulated Other Comprehensive Loss (Income)

Amounts recognized in accumulated other comprehensive loss:
Net prior service credit			$	(55.4)		$	(63.6)
Accumulated other comprehensive loss			$	(55.4)		$	(63.6)

Changes to prior service credit recognized in accumulated other      comprehensive loss:
Accumulated other comprehensive loss at beginning of year			$	(63.6)		$	(71.9)
Recognized prior service credit			8.2			8.3
Total recognized in accumulated other comprehensive loss at December 31			$	(55.4)		$	(63.6)

Schedule of Estimated Future Benefit Payments

Estimated future benefit payments to be funded by the Company are expected to be as follows:

			Future Benefit Payments
2025			$	3.7
2026			3.7
2027			3.6
2028			3.5
2029			3.4
2030-2034			14.0

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