v3.24.0.1
Employee Benefit Plans (Net Periodic Benefit Cost) (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Components of net periodic benefit income:      
Interest cost $ 8.5 $ 5.7 $ 4.7
Expected return on plan assets (7.5) (7.0) (6.0)
Net periodic benefit loss (income) $ 1.0 $ (1.3) $ (1.3)
Weighted average assumptions used to determine net periodic benefit income:      
Discount rate 4.94% 5.13% 2.77%
Expected return on plan assets 5.40% 5.40% 4.10%
Defined Benefit Plan, Net Periodic Benefit (Cost), Credit Interest Cost, Statement Of Income Or Comprehensive Income, Extensible List, Not Disclosed Flag Interest cost Interest cost Interest cost
Defined Benefit Plan, Net Periodic Benefit (Cost), Credit Expected Return (Loss), Statement Of Income Or Comprehensive Income, Extensible List, Not Disclosed Flag Expected return on plan assets Expected return on plan assets Expected return on plan assets