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Segment Information (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2024
Dec. 31, 2023
Mar. 31, 2024
Segment Information [Abstract]          
Net sales $ 616.8 $ 561.4 $ 1,936.3 $ 1,804.3  
Gross profit $ 149.6 $ 127.3 $ 477.8 $ 390.3  
Gross profit (% of sales) 24.30% 22.70% 24.70% 21.60%  
Operating income $ 59.3 $ 61.7 $ 209.0 $ 193.9  
Total assets 1,829.8   1,829.8   $ 1,851.5
Climate Solutions          
Segment Information [Abstract]          
Net sales 360.7 254.0 1,084.3 829.9  
Performance Technologies          
Segment Information [Abstract]          
Net sales 256.1 307.4 852.0 974.4  
Other          
Segment Information [Abstract]          
Total assets 1,070.1   1,070.1   1,070.7
Operating segments          
Segment Information [Abstract]          
Net sales 623.0 564.9 1,953.2 1,821.2  
Gross profit $ 149.8 $ 127.1 $ 480.5 $ 389.3  
Gross profit (% of sales) 24.00% 22.50% 24.60% 21.40%  
Operating income $ 78.2 $ 69.9 $ 265.0 $ 224.4  
Operating segments | Climate Solutions          
Segment Information [Abstract]          
Net sales 360.8 254.0 1,084.5 829.9  
Gross profit $ 103.1 $ 70.1 $ 310.2 $ 222.8  
Gross profit (% of sales) 28.60% 27.60% 28.60% 26.80%  
Operating income $ 62.4 $ 40.4 $ 186.9 $ 136.1  
Total assets 409.3   409.3   412.7
Operating segments | Performance Technologies          
Segment Information [Abstract]          
Net sales 262.2 310.9 868.7 991.3  
Gross profit $ 46.7 $ 57.0 $ 170.3 $ 166.5  
Gross profit (% of sales) 17.80% 18.30% 19.60% 16.80%  
Operating income $ 15.8 $ 29.5 $ 78.1 $ 88.3  
Total assets 350.4   350.4   $ 368.1
Inter-segment Sales          
Segment Information [Abstract]          
Net sales 6.2 3.5 16.9 16.9  
Inter-segment Sales | Climate Solutions          
Segment Information [Abstract]          
Net sales 0.1   0.2 0.0  
Inter-segment Sales | Performance Technologies          
Segment Information [Abstract]          
Net sales 6.1 3.5 16.7 16.9  
Corporate and eliminations          
Segment Information [Abstract]          
Net sales (6.2) (3.5) (16.9) (16.9)  
Gross profit $ (0.2) $ 0.2 $ (2.7) $ 1.0  
Gross profit (% of sales) 0.00% 0.00% 0.00% 0.00%  
Operating income $ (18.9) $ (8.2) $ (56.0) $ (30.5)