v3.24.1.1.u2
Revenue Recognition (Details) - USD ($)
$ in Millions
12 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Mar. 31, 2022
Disaggregation of Revenue [Abstract]      
Net sales $ 2,407.8 $ 2,297.9 $ 2,050.1
Contract Balances [Abstract]      
Contract assets 12.9 19.3  
Contract liabilities 79.4 21.5  
Decrease in contract assets (6.4)    
Increase in contract liabilities 57.9    
Products Transferred at a Point in Time [Member]      
Disaggregation of Revenue [Abstract]      
Net sales 2,328.7 2,202.1 1,983.0
Products Transferred Over Time [Member]      
Disaggregation of Revenue [Abstract]      
Net sales 103.9 126.0 99.9
Americas [Member]      
Disaggregation of Revenue [Abstract]      
Net sales 1,372.1 1,282.9 1,071.5
Europe [Member]      
Disaggregation of Revenue [Abstract]      
Net sales 840.6 814.5 772.4
Asia [Member]      
Disaggregation of Revenue [Abstract]      
Net sales $ 219.9 230.7 239.0
Maximum [Member]      
Revenue Recognition [Abstract]      
Period of time after billing when payment is received 90 days    
Heat Transfer [Member]      
Disaggregation of Revenue [Abstract]      
Net sales $ 419.9 496.7 460.4
HVAC&R [Member]      
Disaggregation of Revenue [Abstract]      
Net sales 340.5 341.0 311.5
Data Center Cooling [Member]      
Disaggregation of Revenue [Abstract]      
Net sales 294.2 173.8 138.2
Air-Cooled [Member]      
Disaggregation of Revenue [Abstract]      
Net sales 681.2 658.6 572.3
Liquid-Cooled [Member]      
Disaggregation of Revenue [Abstract]      
Net sales 491.6 483.9 448.3
Advanced Solutions [Member]      
Disaggregation of Revenue [Abstract]      
Net sales 180.4 143.9 119.4
Climate Solutions [Member]      
Disaggregation of Revenue [Abstract]      
Net sales 1,054.6 1,011.5 910.1
Climate Solutions [Member] | Products Transferred at a Point in Time [Member]      
Disaggregation of Revenue [Abstract]      
Net sales 1,015.3 959.8 889.3
Climate Solutions [Member] | Products Transferred Over Time [Member]      
Disaggregation of Revenue [Abstract]      
Net sales 39.3 52.1 21.2
Climate Solutions [Member] | Americas [Member]      
Disaggregation of Revenue [Abstract]      
Net sales 607.9 580.9 485.9
Climate Solutions [Member] | Europe [Member]      
Disaggregation of Revenue [Abstract]      
Net sales 420.3 406.0 396.7
Climate Solutions [Member] | Asia [Member]      
Disaggregation of Revenue [Abstract]      
Net sales 26.4 25.0 27.9
Climate Solutions [Member] | Heat Transfer [Member]      
Disaggregation of Revenue [Abstract]      
Net sales 419.9 496.7 460.4
Climate Solutions [Member] | HVAC&R [Member]      
Disaggregation of Revenue [Abstract]      
Net sales 340.5 341.0 311.5
Climate Solutions [Member] | Data Center Cooling [Member]      
Disaggregation of Revenue [Abstract]      
Net sales 294.2 173.8 138.2
Climate Solutions [Member] | Air-Cooled [Member]      
Disaggregation of Revenue [Abstract]      
Net sales 0.0 0.0 0.0
Climate Solutions [Member] | Liquid-Cooled [Member]      
Disaggregation of Revenue [Abstract]      
Net sales 0.0 0.0 0.0
Climate Solutions [Member] | Advanced Solutions [Member]      
Disaggregation of Revenue [Abstract]      
Net sales 0.0 0.0 0.0
Performance Technologies [Member]      
Disaggregation of Revenue [Abstract]      
Net sales 1,353.2 1,286.4 1,140.0
Performance Technologies [Member] | Products Transferred at a Point in Time [Member]      
Disaggregation of Revenue [Abstract]      
Net sales 1,313.4 1,242.3 1,093.7
Performance Technologies [Member] | Products Transferred Over Time [Member]      
Disaggregation of Revenue [Abstract]      
Net sales 64.6 73.9 78.7
Performance Technologies [Member] | Americas [Member]      
Disaggregation of Revenue [Abstract]      
Net sales 764.2 702.0 585.6
Performance Technologies [Member] | Europe [Member]      
Disaggregation of Revenue [Abstract]      
Net sales 420.3 408.5 375.7
Performance Technologies [Member] | Asia [Member]      
Disaggregation of Revenue [Abstract]      
Net sales 193.5 205.7 211.1
Performance Technologies [Member] | Heat Transfer [Member]      
Disaggregation of Revenue [Abstract]      
Net sales 0.0 0.0 0.0
Performance Technologies [Member] | HVAC&R [Member]      
Disaggregation of Revenue [Abstract]      
Net sales 0.0 0.0 0.0
Performance Technologies [Member] | Data Center Cooling [Member]      
Disaggregation of Revenue [Abstract]      
Net sales 0.0 0.0 0.0
Performance Technologies [Member] | Air-Cooled [Member]      
Disaggregation of Revenue [Abstract]      
Net sales 681.2 658.6 572.3
Performance Technologies [Member] | Liquid-Cooled [Member]      
Disaggregation of Revenue [Abstract]      
Net sales 491.6 483.9 448.3
Performance Technologies [Member] | Advanced Solutions [Member]      
Disaggregation of Revenue [Abstract]      
Net sales 180.4 143.9 119.4
Operating Segments [Member]      
Disaggregation of Revenue [Abstract]      
Net sales 2,432.6 2,328.1 2,082.9
Operating Segments [Member] | Climate Solutions [Member]      
Disaggregation of Revenue [Abstract]      
Net sales 1,054.6 1,011.9 910.5
Operating Segments [Member] | Performance Technologies [Member]      
Disaggregation of Revenue [Abstract]      
Net sales 1,378.0 1,316.2 1,172.4
Inter-segment Sales [Member]      
Disaggregation of Revenue [Abstract]      
Net sales (24.8) (30.2) (32.8)
Inter-segment Sales [Member] | Climate Solutions [Member]      
Disaggregation of Revenue [Abstract]      
Net sales 0.0 (0.4) (0.4)
Inter-segment Sales [Member] | Performance Technologies [Member]      
Disaggregation of Revenue [Abstract]      
Net sales $ (24.8) $ (29.8) $ (32.4)