Income Taxes (Narrative) (Details) - USD ($) $ in Millions		12 Months Ended
	Apr. 03, 2023	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Tax Credit Carryforward [Line Items]
Tax provision related to changes in pension and post-retirement plan assets and benefit obligations		$ 0.5	$ 2.8	$ 0.7
Deferred tax assets valuation allowance		46.4	19.3
Amount of unrecognized tax benefits that would, if recognized, affect the effective tax rate		18.4	7.8	10.8
Gross unrecognized tax benefit		13.9	0.0	0.0
Indemnification receivable		7.1
Unrecognized tax benefits, interest and penalty (income)		(0.1)	(0.4)	$ (2.5)
Unrecognized tax benefits, interest and penalties accrued		2.8	1.2
Reasonably possible change in unrecognized tax benefits		9.4
Decrease in accrued income tax liablities	$ 10.2
Accrued income tax liability		12.8
Tax Loss and Credit Carryforwards
Tax Credit Carryforward [Line Items]
Deferred tax assets valuation allowance		46.4	13.3
U.S. State and Non-U.S.
Tax Credit Carryforward [Line Items]
Deferred tax assets valuation allowance		$ 0.0	$ 6.0