v3.26.1
Accumulated Other Comprehensive Loss (Details) - USD ($)
$ in Millions
 3 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Changes in Accumulated Other Comprehensive Loss    
Beginning balance $ 1,194.5  
Ending balance 1,201.5  
Accumulated other comprehensive loss    
Changes in Accumulated Other Comprehensive Loss    
Beginning balance (37.1) $ (181.3)
Other comprehensive income (loss) before reclassifications (10.5) 48.6
Reclassification from accumulated other comprehensive income (loss) 0.3 0.5
Income taxes 0.0 (0.8)
Total other comprehensive income (loss) (10.3) 49.4
Ending balance (47.4) (131.9)
Foreign Currency Translation    
Changes in Accumulated Other Comprehensive Loss    
Beginning balance (41.0) (76.8)
Other comprehensive income (loss) before reclassifications (10.0) 47.2
Income taxes 0.0 0.0
Total other comprehensive income (loss) (10.0) 47.2
Ending balance (51.0) (29.6)
Cash Flow Hedges    
Changes in Accumulated Other Comprehensive Loss    
Beginning balance 0.1 (0.7)
Other comprehensive income (loss) before reclassifications (0.5) 1.4
Reclassification from accumulated other comprehensive income (loss) 0.3 0.5
Income taxes 0.0 (0.5)
Total other comprehensive income (loss) (0.2) 1.4
Ending balance (0.1) 0.7
Defined Benefit Plans    
Changes in Accumulated Other Comprehensive Loss    
Beginning balance 3.8 (103.8)
Other comprehensive income (loss) before reclassifications 0.0 0.0
Reclassification from accumulated other comprehensive income (loss) (0.1) 1.1
Income taxes 0.0 (0.3)
Total other comprehensive income (loss) (0.1) 0.8
Ending balance 3.7 (103.0)
Reclassification Defined Benefit Plans    
Changes in Accumulated Other Comprehensive Loss    
Reclassification from accumulated other comprehensive income (loss) $ (0.1) $ 1.1