v3.25.1
Retirement Plans (Tables)
6 Months Ended
Mar. 31, 2025
Retirement Benefits [Abstract]  
Schedule of Net Periodic Pension and Postretirement Cost (Benefit)
The Company’s net periodic pension and postretirement costs for its material plans were as follows:
Three Months Ended
March 31,
Six Months Ended
March 31,
 2025202420252024
Service cost$0.6 $0.4 $1.2 $0.9 
Interest cost4.5 5.4 9.0 10.7 
Expected return on plan assets(5.3)(4.8)(10.7)(9.7)
Recognized net actuarial loss0.6 0.3 1.2 0.7 
Net periodic cost$0.4 $1.3 $0.7 $2.6