v3.26.1
Accumulated Other Comprehensive Loss (Details)
$ in Millions
 12 Months Ended
Oct. 31, 2023
item
Mar. 31, 2026
USD ($)
Mar. 31, 2025
USD ($)
Mar. 31, 2024
USD ($)
Changes in Accumulated Other Comprehensive Loss [Abstract]        
Balance   $ 910.2    
Other comprehensive income (loss) before reclassifications   39.5 $ (23.6) $ (3.4)
Pension termination charge   116.1 0.0 0.0
Unrecognized net pension gain in disposed businesses       (0.6)
Income taxes   (14.8) 1.6 (1.4)
Total other comprehensive income (loss)   144.2 (17.9) (2.3)
Balance   1,194.5 910.2  
Pension termination charge resulted in a net income tax benefit   13.1    
Number of automotive businesses sold | item 3      
Accumulated other comprehensive loss        
Changes in Accumulated Other Comprehensive Loss [Abstract]        
Balance   (181.3) (163.4) (161.1)
Balance   (37.1) (181.3) (163.4)
Foreign Currency Translation        
Changes in Accumulated Other Comprehensive Loss [Abstract]        
Balance   (76.8) (62.8) (57.5)
Other comprehensive income (loss) before reclassifications   35.8 (14.0) (5.3)
Income taxes   0.0    
Total other comprehensive income (loss)   35.8 (14.0) (5.3)
Balance   (41.0) (76.8) (62.8)
Defined Benefit Plans        
Changes in Accumulated Other Comprehensive Loss [Abstract]        
Balance   (103.8) (100.7) (104.4)
Other comprehensive income (loss) before reclassifications   3.3 (8.7) 1.8
Reclassification from accumulated other comprehensive income (loss)   2.8 [1] 4.2 4.1
Pension termination charge   116.1    
Unrecognized net pension gain in disposed businesses       (0.6)
Income taxes   (14.6) 1.4 (1.6)
Total other comprehensive income (loss)   107.6 (3.1) 3.7
Balance   3.8 (103.8) (100.7)
Cash Flow Hedges        
Changes in Accumulated Other Comprehensive Loss [Abstract]        
Balance   (0.7) 0.1 0.8
Other comprehensive income (loss) before reclassifications   0.4 (0.9) 0.1
Reclassification from accumulated other comprehensive income (loss)   0.6 (0.1) (1.0)
Income taxes   (0.2) 0.2 0.2
Total other comprehensive income (loss)   0.8 (0.8) (0.7)
Balance   $ 0.1 $ (0.7) $ 0.1
[1] Amounts are included in the calculation of net periodic benefit cost for the Company’s defined benefit plans, which include pension and other postretirement plans. See Note 18 for additional information about the Company’s pension plans.