v3.26.1
Benefit Plans (Net Periodic Benefit Cost (Income)) (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Contributions by employer $ 7.5 $ 0.0
Pension [Member]    
Service cost 0.5 0.6
Interest cost 3.2 3.6
Expected return on assets (3.8) (3.9)
Prior service cost 0.2 0.2
Actuarial loss / (gain) 1.1 1.3
Net periodic benefit cost $ 1.2 $ 1.8