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Impairment and restructuring charges (Tables)

12 Months Ended

Dec. 31, 2024

Restructuring and Related Activities [Abstract]

Schedule of Impairment of Long-Lived Assets Held and Used by Asset

The table below presents the total impairment charge by asset class for the years ended December 31, 2024 and 2023:

			Year Ended December 31,
			2024						2023
Buildings, building improvements and leasehold improvements			$	7.8					$	81.5
Furniture and equipment			14.1						117.5
Software			0.2						0.3
Construction-in-progress			5.1						107.4
Total impairment of long-lived assets			$	27.2					$	306.7

Schedule of Restructuring and Related Costs

The following table presents the total restructuring costs related to the January 2023 Plan, August 2023 Plan, May 2024 Plan and August 2024 Plan by reportable segment as well as amounts included within unallocated corporate SG&A expense and R&D expense:

			Year Ended December 31,
			2024						2023
Commercial Products			$	—					$	—
MCM Products			7.2						5.6
Services			0.2						8.4
Total restructuring costs by segment			7.4						14.0
Corporate			9.3						11.7
R&D			5.8						3.6
Total restructuring costs			$	22.5					$	29.3

The following table presents the total restructuring costs, by function, for the years ended December 31, 2024 and 2023:

			Year Ended December 31,
			2024						2023
Employee transition			$	0.3					$	0.6
Severance payments			19.3						27.0
Employee benefits			2.9						1.7
Total restructuring costs			$	22.5					$	29.3

Schedule of Restructuring Reserve by Type of Cost

The following table provides the components of and changes in the Company's restructuring accrual for the January 2023 Plan during the years ended December 31, 2024 and 2023:

			Employee Transition						Severance Payments						Employee Benefits						Total
Balance at December 31, 2022			$	—					$	—					$	—					$	—
Accruals			$	0.3					$	8.7					$	0.3					$	9.3
Cash payments			(0.3)						(7.3)						(0.3)						(7.9)
Balance at December 31, 2023			$	—					$	1.4					$	—					$	1.4
Accruals			—						—						—						—
Cash payments			—						(1.4)						—						(1.4)
Balance at December 31, 2024			$	—					$	—					$	—					$	—

The following table provides the components of and changes in the Company's restructuring accrual for the August 2023 Plan during the years ended December 31, 2024 and 2023:

			Employee Transition						Severance Payments						Employee Benefits						Total
Balance at December 31, 2022			$	—					$	—					$	—					$	—
Accruals			$	0.3					$	18.3					$	1.4					$	20.0
Cash payments			(0.3)						(13.0)						(1.3)						(14.6)
Balance at December 31, 2023			$	—					$	5.3					$	0.1					$	5.4
Accruals			—						(0.6)						—						(0.6)
Cash payments			—						(4.7)						(0.1)						(4.8)
Balance at December 31, 2024			$	—					$	—					$	—					$	—

The following table provides the components of and changes in the Company's restructuring accrual for the May 2024 Plan during the year ended December 31, 2024:

			Employee Transition						Severance Payments						Employee Benefits						Total
Balance at December 31, 2023			$	—					$	—					$	—					$	—
Accruals			0.2						17.2						2.4						19.8
Cash payments			(0.2)						(12.7)						(1.6)						(14.5)
Balance at December 31, 2024			$	—					$	4.5					$	0.8					$	5.3

The following table provides the components of and changes in the Company's restructuring accrual for the August 2024 Plan during the year ended December 31, 2024:

			Employee Transition						Severance Payments						Employee Benefits						Total
Balance at December 31, 2023			$	—					$	—					$	—					$	—
Accruals			0.1						2.6						0.6						3.3
Cash payments			(0.1)						(0.7)						(0.1)						(0.9)
Balance at December 31, 2024			$	—					$	1.9					$	0.5					$	2.4

X

- Definition

Tabular disclosure for impairment of long-lived assets held and used by an entity which includes a description of the impaired long-lived asset and facts and circumstances leading to the impairment, aggregate amount of the impairment loss and where the loss is located in the income statement, method(s) for determining fair value, and the segment in which the impaired long-lived asset is reported.

+ References

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-Topic 360
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Tabular disclosure of costs incurred for restructuring including, but not limited to, exit and disposal activities, remediation, implementation, integration, asset impairment, and charges against earnings from the write-down of assets.

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Tabular disclosure of an entity's restructuring reserve that occurred during the period associated with the exit from or disposal of business activities or restructurings for each major type of cost. This element may also include a description of any reversal and other adjustment made during the period to the amount of an accrued liability for restructuring activities. This element may be used to encapsulate the roll forward presentations of an entity's restructuring reserve by type of cost and in total, and explanation of changes that occurred in the period.

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