v3.26.3
Employee Retirement Plans - Schedule of Net Periodic Pension and Other Postretirement Benefit Cost (Benefit) (Details) - USD ($)
$ in Millions
 3 Months Ended
Aug. 31, 2026
Aug. 31, 2025
Other Benefits    
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]    
Service cost $ 0.0 $ 0.0
Interest cost 0.1 0.1
Expected return on plan assets 0.0 0.0
Net amortization and deferral costs 0.0 0.0
Settlement gain 0.0 0.0
Curtailment gain 0.0 0.0
Net periodic benefit cost (income) 0.1 0.1
U.S    
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]    
Service cost 0.0 0.0
Interest cost 3.2 0.6
Expected return on plan assets (3.1) (0.6)
Net amortization and deferral costs 0.0 0.0
Settlement gain 0.0 0.0
Curtailment gain 0.0 0.0
Net periodic benefit cost (income) 0.1 (0.0)
Non-U.S    
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]    
Service cost 3.1 0.4
Interest cost 4.2 0.2
Expected return on plan assets (9.8) (0.4)
Net amortization and deferral costs 0.0 0.0
Settlement gain 0.0 0.0
Curtailment gain (1.2) 0.0
Net periodic benefit cost (income) $ (3.7) $ 0.2