v3.26.1
EMPLOYEE BENEFIT PLANS - Narrative (Details) - USD ($)
$ in Millions
 12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2024
Defined Benefit Plan Disclosure [Line Items]      
Service period 90 days    
Percent of company match to plan 100.00%    
Percent of employee salary eligible for contribution 6.00%    
Curtailment losses (gains) $ 0.3 $ 0.0 $ 0.1
Actuarial gain 9.1 10.2  
Pension Plans      
Defined Benefit Plan Disclosure [Line Items]      
Actuarial gain 7.5 9.2  
Loss on plan assets   0.3  
Other Post-Employment Benefits      
Defined Benefit Plan Disclosure [Line Items]      
Curtailment losses (gains) 0.0 0.0 0.0
Actuarial gain 1.6 1.0  
Expected contributions 2.1    
U.S.      
Defined Benefit Plan Disclosure [Line Items]      
Employer contributions 13.7 15.4 15.6
U.S. | Pension Plans      
Defined Benefit Plan Disclosure [Line Items]      
Curtailment losses (gains) 0.0 0.0 0.0
Actuarial gain 0.0 0.5  
Accumulated benefit obligation 10.6 11.3  
Expected contributions 1.2    
International      
Defined Benefit Plan Disclosure [Line Items]      
Employer contributions 11.4 11.6 10.9
International | Pension Plans      
Defined Benefit Plan Disclosure [Line Items]      
Curtailment losses (gains) 0.3 0.0 0.1
Actuarial gain 7.5 8.7  
Accumulated benefit obligation 340.9 364.3  
Expected contributions 17.5    
International | Fixed Cost Reduction Plan | Pension Plans      
Defined Benefit Plan Disclosure [Line Items]      
Curtailment losses (gains) (0.3) 0.0 0.1
Settlement (gain) loss related to restructuring activities 0.1 (0.5) 0.0
International | Turnaround Plan, Current Year Restructuring Actions | Pension Plans      
Defined Benefit Plan Disclosure [Line Items]      
Settlement (gain) loss related to restructuring activities $ 0.3 $ 0.0 $ 0.0