v3.24.1.1.u2
Goodwill (Details)
$ in Millions
 1 Months Ended 12 Months Ended
Sep. 30, 2023
Facility
Mar. 31, 2024
USD ($)
Mar. 31, 2023
USD ($)
Goodwill [Roll Forward]      
Beginning balance   $ 165.6 $ 168.1
Acquisition [1]   65.5  
Effect of exchange rate changes   (0.2) (2.5)
Ending balance   230.9 165.6
Number of coatings facilities sold | Facility 2    
Climate Solutions [Member]      
Goodwill [Roll Forward]      
Beginning balance   105.7 108.1
Acquisition [1]   66.2  
Effect of exchange rate changes   (0.1) (2.4)
Ending balance   171.8 105.7
Performance Technologies [Member]      
Goodwill [Roll Forward]      
Beginning balance   59.9 60.0
Disposition [1]   (0.7)  
Effect of exchange rate changes   (0.1) (0.1)
Ending balance   59.1 59.9
Accumulated impairment losses   40.8 $ 40.8
Scott Springfield Manufacturing [Member] | Climate Solutions [Member]      
Goodwill [Roll Forward]      
Acquisition   65.2  
Napps [Member]      
Goodwill [Roll Forward]      
Ending balance   1.0  
Napps [Member] | Climate Solutions [Member]      
Goodwill [Roll Forward]      
Acquisition   $ 1.0  
[1] During fiscal 2024, the Company recorded $65.2 million and $1.0 million of goodwill in connection with its acquisition of Scott Springfield Manufacturing and Napps, respectively.  In addition, the Company wrote-off $0.7 million of goodwill in connection with the sale of two coatings facilities.  See Note 2 for additional information.