v3.26.3
Retirement Benefits (Tables)
9 Months Ended
Sep. 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 EndedNine Months Ended
September 30, 2026September 30, 2025September 30, 2026September 30, 2025
Pension Benefits:
Service cost$— $0.1 $0.1 $0.1 
Interest cost0.1 2.8 0.3 8.5 
Expected return on plan assets— (2.3)(0.1)(6.9)
Amortization of:
Prior service cost— 0.3 — 0.3 
Settlement— (10.0)— (10.0)
Curtailment— — — (0.7)
Net periodic benefit cost$0.1 $(9.1)$0.3 $(8.7)
Other Postretirement Benefits:
Interest cost$0.1 $0.1 $0.3 $0.3 
Net periodic benefit cost$0.1 $0.1 $0.3 $0.3