v3.26.1
CHANGES IN ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) BY COMPONENT (Details) - USD ($)
$ in Millions
 12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2024
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]      
Beginning balance $ 2,655.1 $ 2,168.2 $ 2,240.6
Other comprehensive income (loss) before reclassifications (12.3) 57.6 (48.0)
Amounts reclassified from accumulated other comprehensive income/(loss) 1.1 1.2 1.1
Ending balance 2,840.5 2,655.1 2,168.2
Foreign Currency Translation      
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]      
Beginning balance (263.6) (320.3) (273.6)
Other comprehensive income (loss) before reclassifications (10.8) 56.7 (46.8)
Amounts reclassified from accumulated other comprehensive income/(loss) 0.0 0.0 0.0
Ending balance (274.4) (263.6) (320.3)
Pension and Post- Retirement Liabilities      
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]      
Beginning balance (4.4) (5.7) (4.6)
Other comprehensive income (loss) before reclassifications (1.5) 0.9 (1.3)
Amounts reclassified from accumulated other comprehensive income/(loss) 0.3 0.4 0.2
Ending balance (5.6) (4.4) (5.7)
Cash Flow Hedge      
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]      
Beginning balance (4.9) (5.7) (6.5)
Other comprehensive income (loss) before reclassifications 0.0 0.0 0.0
Amounts reclassified from accumulated other comprehensive income/(loss) 0.8 0.8 0.8
Ending balance (4.1) (4.9) (5.7)
AOCI Attributable to Parent      
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]      
Beginning balance (272.9) (331.7) (284.7)
Ending balance $ (284.1) $ (272.9) $ (331.7)