Revenue Recognition (Details) - USD ($) $ in Millions	3 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Mar. 31, 2024
Disaggregation of Revenue [Abstract]
Net sales	$ 661.5	$ 622.4
Contract Balances [Abstract]
Contract assets	10.8		$ 12.9
Contract liabilities	66.4		$ 79.4
Decrease in contract assets	(2.1)
Decrease in contract liabilities	(13.0)
Products Transferred at a Point in Time [Member]
Disaggregation of Revenue [Abstract]
Net sales	646.5	598.2
Products Transferred Over Time [Member]
Disaggregation of Revenue [Abstract]
Net sales	19.8	31.6
Americas [Member]
Disaggregation of Revenue [Abstract]
Net sales	424.7	326.0
Europe [Member]
Disaggregation of Revenue [Abstract]
Net sales	191.6	246.9
Asia [Member]
Disaggregation of Revenue [Abstract]
Net sales	50.0	56.9
Data Center Cooling [Member]
Disaggregation of Revenue [Abstract]
Net sales	162.6	68.2
Heat Transfer [Member]
Disaggregation of Revenue [Abstract]
Net sales	111.8	140.8
HVAC&R [Member]
Disaggregation of Revenue [Abstract]
Net sales	82.8	77.7
Air-Cooled [Member]
Disaggregation of Revenue [Abstract]
Net sales	168.6	172.7
Liquid-Cooled [Member]
Disaggregation of Revenue [Abstract]
Net sales	104.0	134.7
Advanced Solutions [Member]
Disaggregation of Revenue [Abstract]
Net sales	31.7	28.3
Climate Solutions [Member]
Disaggregation of Revenue [Abstract]
Net sales	357.2	286.7
Climate Solutions [Member] | Products Transferred at a Point in Time [Member]
Disaggregation of Revenue [Abstract]
Net sales	340.7	258.2
Climate Solutions [Member] | Products Transferred Over Time [Member]
Disaggregation of Revenue [Abstract]
Net sales	16.6	28.5
Climate Solutions [Member] | Americas [Member]
Disaggregation of Revenue [Abstract]
Net sales	240.0	153.3
Climate Solutions [Member] | Europe [Member]
Disaggregation of Revenue [Abstract]
Net sales	111.5	126.9
Climate Solutions [Member] | Asia [Member]
Disaggregation of Revenue [Abstract]
Net sales	5.8	6.5
Climate Solutions [Member] | Data Center Cooling [Member]
Disaggregation of Revenue [Abstract]
Net sales	162.6	68.2
Climate Solutions [Member] | Heat Transfer [Member]
Disaggregation of Revenue [Abstract]
Net sales	111.8	140.8
Climate Solutions [Member] | HVAC&R [Member]
Disaggregation of Revenue [Abstract]
Net sales	82.8	77.7
Climate Solutions [Member] | Air-Cooled [Member]
Disaggregation of Revenue [Abstract]
Net sales	0.0	0.0
Climate Solutions [Member] | Liquid-Cooled [Member]
Disaggregation of Revenue [Abstract]
Net sales	0.0	0.0
Climate Solutions [Member] | Advanced Solutions [Member]
Disaggregation of Revenue [Abstract]
Net sales	0.0	0.0
Performance Technologies [Member]
Disaggregation of Revenue [Abstract]
Net sales	304.3	335.7
Performance Technologies [Member] | Products Transferred at a Point in Time [Member]
Disaggregation of Revenue [Abstract]
Net sales	305.8	340.0
Performance Technologies [Member] | Products Transferred Over Time [Member]
Disaggregation of Revenue [Abstract]
Net sales	3.2	3.1
Performance Technologies [Member] | Americas [Member]
Disaggregation of Revenue [Abstract]
Net sales	184.7	172.7
Performance Technologies [Member] | Europe [Member]
Disaggregation of Revenue [Abstract]
Net sales	80.1	120.0
Performance Technologies [Member] | Asia [Member]
Disaggregation of Revenue [Abstract]
Net sales	44.2	50.4
Performance Technologies [Member] | Data Center Cooling [Member]
Disaggregation of Revenue [Abstract]
Net sales	0.0	0.0
Performance Technologies [Member] | Heat Transfer [Member]
Disaggregation of Revenue [Abstract]
Net sales	0.0	0.0
Performance Technologies [Member] | HVAC&R [Member]
Disaggregation of Revenue [Abstract]
Net sales	0.0	0.0
Performance Technologies [Member] | Air-Cooled [Member]
Disaggregation of Revenue [Abstract]
Net sales	168.6	172.7
Performance Technologies [Member] | Liquid-Cooled [Member]
Disaggregation of Revenue [Abstract]
Net sales	104.0	134.7
Performance Technologies [Member] | Advanced Solutions [Member]
Disaggregation of Revenue [Abstract]
Net sales	31.7	28.3
Operating Segments [Member]
Disaggregation of Revenue [Abstract]
Net sales	666.3	629.8
Operating Segments [Member] | Climate Solutions [Member]
Disaggregation of Revenue [Abstract]
Net sales	357.3	286.7
Operating Segments [Member] | Performance Technologies [Member]
Disaggregation of Revenue [Abstract]
Net sales	309.0	343.1
Inter-segment Sales [Member]
Disaggregation of Revenue [Abstract]
Net sales	4.8	7.4
Inter-segment Sales [Member] | Climate Solutions [Member]
Disaggregation of Revenue [Abstract]
Net sales	0.1	0.0
Inter-segment Sales [Member] | Performance Technologies [Member]
Disaggregation of Revenue [Abstract]
Net sales	$ 4.7	$ 7.4