v3.26.3
Pension Plans (Components of Net Periodic Pension Cost) (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Retirement Benefits [Abstract]        
Interest cost $ 4.7 $ 5.1 $ 14.2 $ 15.3
Defined Benefit Plan, Type [Extensible List] us-gaap:PensionPlansDefinedBenefitMember us-gaap:PensionPlansDefinedBenefitMember us-gaap:PensionPlansDefinedBenefitMember us-gaap:PensionPlansDefinedBenefitMember
Expected return on plan assets $ (4.6) $ (4.7) $ (13.8) $ (14.2)
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Expected Return (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Other Cost and Expense, Operating Other Cost and Expense, Operating Other Cost and Expense, Operating Other Cost and Expense, Operating
Recognized net actuarial loss $ 1.7 $ 1.6 $ 5.0 $ 4.9
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Amortization of Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Other Cost and Expense, Operating Other Cost and Expense, Operating Other Cost and Expense, Operating Other Cost and Expense, Operating
Net periodic pension cost $ 1.8 $ 2.0 $ 5.4 $ 6.0