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Restructuring and Related Activities - Restructuring Accrual Activities (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Restructuring Reserve [Roll Forward]
Severance and other restructuring reserve, beginning balance			$ 9.8
Restructuring charges			2.9
Payments			(6.3)
Restructuring Reserve, Accrual Adjustment			0.7
Severance and other restructuring reserve, ending balance	$ 7.1		7.1
Restructuring charges		$ 0.2	2.9	$ 2.7
Severance Pay and Contract Termination and Other Costs
Restructuring Reserve [Roll Forward]
Restructuring charges	0.0	0.2	2.9	2.7
Severance Pay and Benefits
Restructuring Reserve [Roll Forward]
Severance and other restructuring reserve, beginning balance			0.4
Restructuring charges			2.9
Payments			(1.4)
Restructuring Reserve, Accrual Adjustment			0.0
Severance and other restructuring reserve, ending balance	1.9		1.9
Contract Termination and Other Costs
Restructuring Reserve [Roll Forward]
Severance and other restructuring reserve, beginning balance			9.4
Restructuring charges			0.0
Payments			(4.9)
Restructuring Reserve, Accrual Adjustment			0.7
Severance and other restructuring reserve, ending balance	5.2		5.2
Contract Termination and Other Costs \| Accrued Liabilities
Restructuring Reserve [Roll Forward]
Severance and other restructuring reserve, beginning balance			4.6
Severance and other restructuring reserve, ending balance	$ 5.2		$ 5.2
Other Restructuring \| Corporate, Non-Segment [Member]
Restructuring Reserve [Roll Forward]
Restructuring charges		$ 0.3		$ 1.0