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Revenue Recognition (Details) - USD ($)
$ in Millions
12 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Mar. 31, 2023
Disaggregation of Revenue [Abstract]      
Net sales $ 2,583.5 $ 2,407.8 $ 2,297.9
Contract Balances [Abstract]      
Contract assets 13.3 12.9  
Contract liabilities 35.1 79.4  
Increase in contract assets 0.4    
Decrease in contract liabilities (44.5) 58.3 10.3
Decrease in contract liabilities including FX (44.3)    
Americas      
Disaggregation of Revenue [Abstract]      
Net sales 1,693.4 1,370.0 1,280.0
Europe      
Disaggregation of Revenue [Abstract]      
Net sales 711.7 839.5 813.5
Asia      
Disaggregation of Revenue [Abstract]      
Net sales $ 199.2 219.9 230.7
Maximum      
Revenue Recognition [Abstract]      
Period of time after billing when payment is received 90 days    
Heat Transfer      
Disaggregation of Revenue [Abstract]      
Net sales $ 402.9 473.4 541.3
HVAC&R      
Disaggregation of Revenue [Abstract]      
Net sales 393.5 340.5 341.0
Data Center Cooling      
Disaggregation of Revenue [Abstract]      
Net sales 644.2 294.2 173.8
Air-Cooled      
Disaggregation of Revenue [Abstract]      
Net sales 609.0 681.2 658.6
Liquid-Cooled      
Disaggregation of Revenue [Abstract]      
Net sales 404.5 491.6 483.9
Advanced Solutions      
Disaggregation of Revenue [Abstract]      
Net sales 129.4 126.9 99.3
Climate Solutions      
Disaggregation of Revenue [Abstract]      
Net sales 1,440.6 1,108.1 1,056.1
Climate Solutions | Americas      
Disaggregation of Revenue [Abstract]      
Net sales 997.8 649.0 615.4
Climate Solutions | Europe      
Disaggregation of Revenue [Abstract]      
Net sales 415.8 432.7 416.3
Climate Solutions | Asia      
Disaggregation of Revenue [Abstract]      
Net sales 27.2 26.4 25.0
Climate Solutions | Heat Transfer      
Disaggregation of Revenue [Abstract]      
Net sales 402.9 473.4 541.3
Climate Solutions | HVAC&R      
Disaggregation of Revenue [Abstract]      
Net sales 393.5 340.5 341.0
Climate Solutions | Data Center Cooling      
Disaggregation of Revenue [Abstract]      
Net sales 644.2 294.2 173.8
Climate Solutions | Air-Cooled      
Disaggregation of Revenue [Abstract]      
Net sales 0.0 0.0 0.0
Climate Solutions | Liquid-Cooled      
Disaggregation of Revenue [Abstract]      
Net sales 0.0 0.0 0.0
Climate Solutions | Advanced Solutions      
Disaggregation of Revenue [Abstract]      
Net sales 0.0 0.0 0.0
Performance Technologies      
Disaggregation of Revenue [Abstract]      
Net sales 1,142.9 1,299.7 1,241.8
Performance Technologies | Americas      
Disaggregation of Revenue [Abstract]      
Net sales 695.6 721.0 664.6
Performance Technologies | Europe      
Disaggregation of Revenue [Abstract]      
Net sales 295.9 406.8 397.2
Performance Technologies | Asia      
Disaggregation of Revenue [Abstract]      
Net sales 172.0 193.5 205.7
Performance Technologies | Heat Transfer      
Disaggregation of Revenue [Abstract]      
Net sales 0.0 0.0 0.0
Performance Technologies | HVAC&R      
Disaggregation of Revenue [Abstract]      
Net sales 0.0 0.0 0.0
Performance Technologies | Data Center Cooling      
Disaggregation of Revenue [Abstract]      
Net sales 0.0 0.0 0.0
Performance Technologies | Air-Cooled      
Disaggregation of Revenue [Abstract]      
Net sales 609.0 681.2 658.6
Performance Technologies | Liquid-Cooled      
Disaggregation of Revenue [Abstract]      
Net sales 404.5 491.6 483.9
Performance Technologies | Advanced Solutions      
Disaggregation of Revenue [Abstract]      
Net sales 129.4 126.9 99.3
Operating Segments      
Disaggregation of Revenue [Abstract]      
Net sales 2,604.3 2,429.4 2,324.2
Operating Segments | Climate Solutions      
Disaggregation of Revenue [Abstract]      
Net sales 1,440.8 1,108.1 1,056.7
Operating Segments | Performance Technologies      
Disaggregation of Revenue [Abstract]      
Net sales 1,163.5 1,321.3 1,267.5
Inter-segment Sales      
Disaggregation of Revenue [Abstract]      
Net sales 20.8 (21.6) 26.3
Inter-segment Sales | Climate Solutions      
Disaggregation of Revenue [Abstract]      
Net sales (0.2) 0.0 (0.6)
Inter-segment Sales | Performance Technologies      
Disaggregation of Revenue [Abstract]      
Net sales $ (20.6) $ (21.6) $ (25.7)