XML 68 R55.htm IDEA: XBRL DOCUMENT v3.25.0.1
Pension Plans - Schedule of Net Benefit Costs (Details) - Pension Plan - USD ($)
$ in Millions
 3 Months Ended
Dec. 31, 2024
Dec. 31, 2023
U.S.    
Defined Benefit Plan Disclosure [Line Items]    
Service cost $ 0.0 $ 0.0
Interest cost 3.1 3.6
Expected return on plan assets (4.0) (3.3)
Amortization of unrecognized net losses 0.5 0.5
Net periodic (benefit) / cost (0.4) 0.8
International    
Defined Benefit Plan Disclosure [Line Items]    
Service cost 0.1 0.1
Interest cost 0.8 0.8
Expected return on plan assets (0.9) (0.8)
Amortization of unrecognized net losses 0.5 0.2
Net periodic (benefit) / cost $ 0.5 $ 0.3