v3.25.4
Income Taxes (Deferred Income Taxes) (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Components of Deferred Tax Assets and Liabilities [Abstract]    
Deferred Tax Assets, Employee Benefits Costs $ 21.1 $ 22.1
Deferred Tax Assets, Inventory 19.0 27.2
Deferred Tax Assets, Property, Plant and Equipment 178.1 178.2
Deferred Tax Asset, In-Process Research and Development 1.5 2.4
Deferred Tax Assets, Net Operating Loss and Credit Carryforwards 159.0 165.2
Deferred Tax Assets, Accrued Expenses 0.5 0.4
Deferred Tax Assets, Long-Term Debt and Financing Costs 0.9 3.8
Deferred Tax Asset, Lease Liability 0.5 0.5
Deferred Tax Assets, Other 0.7 0.8
Deferred Tax Assets, Gross 381.3 400.6
Deferred Tax Assets, Valuation Allowance (355.4) (365.7)
Deferred Tax Assets, Net of Valuation Allowance 25.9 34.9
Deferred Tax Liabilities, Intangible Assets 3.3 4.9
Deferred Tax Liability, Lease Asset 0.4 0.3
Deferred Tax Liabilities, Prepaid Expenses 0.3 0.4
Deferred Tax Liabilities 4.0 5.6
Deferred Tax Assets, Net, Current $ 21.9 $ 29.3