Restructuring and Separation Costs - Schedule of Restructuring Reserve by Type of Cost (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2025	Jun. 30, 2025
Restructuring Reserve [Roll Forward]
Additions	$ 6.5	$ 10.2
2023 Restructuring Plan
Restructuring Reserve [Roll Forward]
Balance at December 31, 2024		13.8
Payments		(13.4)
Non-cash adjustments		(0.4)
Balance at June 30, 2025	0.0	0.0
Transformation Plan
Restructuring Reserve [Roll Forward]
Balance at December 31, 2024		0.7
Additions	4.1	11.8
Payments		(5.8)
Non-cash adjustments		(6.4)
Balance at June 30, 2025	0.3	0.3
Employee termination costs \| 2023 Restructuring Plan
Restructuring Reserve [Roll Forward]
Balance at December 31, 2024		10.2
Payments		(10.2)
Non-cash adjustments		0.0
Balance at June 30, 2025	0.0	0.0
Employee termination costs \| Transformation Plan
Restructuring Reserve [Roll Forward]
Balance at December 31, 2024		0.6
Additions		5.3
Payments		(5.6)
Non-cash adjustments		0.0
Balance at June 30, 2025	0.3	0.3
PP&E disposals \| 2023 Restructuring Plan
Restructuring Reserve [Roll Forward]
Balance at December 31, 2024		0.4
Payments		0.0
Non-cash adjustments		(0.4)
Balance at June 30, 2025	0.0	0.0
PP&E disposals \| Transformation Plan
Restructuring Reserve [Roll Forward]
Balance at December 31, 2024		0.0
Additions		6.4
Payments		0.0
Non-cash adjustments		(6.4)
Balance at June 30, 2025	0.0	0.0
Legal & other costs \| 2023 Restructuring Plan
Restructuring Reserve [Roll Forward]
Balance at December 31, 2024		3.2
Payments		(3.2)
Non-cash adjustments		0.0
Balance at June 30, 2025	0.0	0.0
Legal & other costs \| Transformation Plan
Restructuring Reserve [Roll Forward]
Balance at December 31, 2024		0.1
Additions		0.1
Payments		(0.2)
Non-cash adjustments		0.0
Balance at June 30, 2025	$ 0.0	$ 0.0

Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

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Amount of expense (reversal of expense) which increases (decreases) the restructuring reserve from an adjustment to a previously accrued restructuring liability.

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