v3.26.1
Retirement Benefits (Tables)
6 Months Ended
Jun. 30, 2026
Retirement Benefits [Abstract]  
Schedule of Net Periodic Benefit Costs
The components of net periodic benefit cost are as follows (in millions):
Three Months EndedSix Months Ended
June 30, 2026June 30, 2025June 30, 2026June 30, 2025
Pension Benefits:
Service cost$0.1 $— $0.1 $— 
Interest cost0.1 2.9 0.2 5.7 
Expected return on plan assets(0.1)(2.3)(0.1)(4.6)
Curtailment— — — (0.7)
Net periodic benefit cost$0.1 $0.6 $0.2 $0.4 
Other Postretirement Benefits:
Interest cost$0.1 $0.1 $0.2 $0.2 
Net periodic benefit cost$0.1 $0.1 $0.2 $0.2