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Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time.

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Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable.

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Amount of increase (decrease) in right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time.

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Amount of increase (decrease) in obligation to transfer good or service to customer for which consideration has been received or is receivable.

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- Definition

Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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Revenue Recognition (Details) $ in Millions	3 Months Ended		9 Months Ended
Revenue Recognition (Details) $ in Millions	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2022 USD ($) Segment	Dec. 31, 2021 USD ($)	Mar. 31, 2022 USD ($)
Revenue Recognition [Abstract]
Number of operating segments \| Segment			2
Disaggregation of Revenue [Abstract]
Net sales	$ 560.0	$ 502.2	$ 1,679.8	$ 1,475.7
Contract Balances [Abstract]
Contract assets	23.8		23.8		$ 26.8
Contract liabilities	11.9		11.9		$ 11.8
Decrease in contract assets			(3.0)
Increase in contract liabilities			0.1
Products Transferred at a Point in Time [Member]
Disaggregation of Revenue [Abstract]
Net sales	534.3	486.7	1,599.7	1,432.1
Products Transferred Over Time [Member]
Disaggregation of Revenue [Abstract]
Net sales	32.1	22.6	101.3	68.8
Americas [Member]
Disaggregation of Revenue [Abstract]
Net sales	315.7	267.3	958.5	772.0
Europe [Member]
Disaggregation of Revenue [Abstract]
Net sales	192.0	181.0	569.3	551.5
Asia [Member]
Disaggregation of Revenue [Abstract]
Net sales	58.7	61.0	173.2	177.4
Heat Transfer [Member]
Disaggregation of Revenue [Abstract]
Net sales	119.3	116.5	394.7	353.4
HVAC & Refrigeration [Member]
Disaggregation of Revenue [Abstract]
Net sales	89.0	86.8	256.8	237.9
Data Center Cooling [Member]
Disaggregation of Revenue [Abstract]
Net sales	40.3	24.0	97.1	59.5
Air-Cooled [Member]
Disaggregation of Revenue [Abstract]
Net sales	158.9	138.1	481.2	415.8
Liquid-Cooled [Member]
Disaggregation of Revenue [Abstract]
Net sales	117.3	106.8	347.2	322.6
Advanced Solutions [Member]
Disaggregation of Revenue [Abstract]
Net sales	35.2	30.0	102.8	86.5
Inter-segment Sales [Member]
Disaggregation of Revenue [Abstract]
Net sales	6.4	7.1	21.2	25.2
Segment Total [Member]
Disaggregation of Revenue [Abstract]
Net sales	566.4	509.3	1,701.0	1,500.9
Climate Solutions [Member]
Disaggregation of Revenue [Abstract]
Net sales	248.6	227.3	748.9	651.0
Climate Solutions [Member] \| Products Transferred at a Point in Time [Member]
Disaggregation of Revenue [Abstract]
Net sales	233.3	223.2	707.1	640.5
Climate Solutions [Member] \| Products Transferred Over Time [Member]
Disaggregation of Revenue [Abstract]
Net sales	15.3	4.1	41.8	10.5
Climate Solutions [Member] \| Americas [Member]
Disaggregation of Revenue [Abstract]
Net sales	148.5	126.1	444.2	348.0
Climate Solutions [Member] \| Europe [Member]
Disaggregation of Revenue [Abstract]
Net sales	94.4	95.2	284.3	281.0
Climate Solutions [Member] \| Asia [Member]
Disaggregation of Revenue [Abstract]
Net sales	5.7	6.0	20.4	22.0
Climate Solutions [Member] \| Heat Transfer [Member]
Disaggregation of Revenue [Abstract]
Net sales	119.3	116.5	394.7	353.4
Climate Solutions [Member] \| HVAC & Refrigeration [Member]
Disaggregation of Revenue [Abstract]
Net sales	89.0	86.8	256.8	237.9
Climate Solutions [Member] \| Data Center Cooling [Member]
Disaggregation of Revenue [Abstract]
Net sales	40.3	24.0	97.1	59.5
Climate Solutions [Member] \| Air-Cooled [Member]
Disaggregation of Revenue [Abstract]
Net sales	0.0	0.0	0.0	0.0
Climate Solutions [Member] \| Liquid-Cooled [Member]
Disaggregation of Revenue [Abstract]
Net sales	0.0	0.0	0.0	0.0
Climate Solutions [Member] \| Advanced Solutions [Member]
Disaggregation of Revenue [Abstract]
Net sales	0.0	0.0	0.0	0.0
Climate Solutions [Member] \| Inter-segment Sales [Member]
Disaggregation of Revenue [Abstract]
Net sales	0.0	0.0	0.3	0.2
Performance Technologies [Member]
Disaggregation of Revenue [Abstract]
Net sales	317.8	282.0	952.1	849.9
Performance Technologies [Member] \| Products Transferred at a Point in Time [Member]
Disaggregation of Revenue [Abstract]
Net sales	301.0	263.5	892.6	791.6
Performance Technologies [Member] \| Products Transferred Over Time [Member]
Disaggregation of Revenue [Abstract]
Net sales	16.8	18.5	59.5	58.3
Performance Technologies [Member] \| Americas [Member]
Disaggregation of Revenue [Abstract]
Net sales	167.2	141.2	514.3	424.0
Performance Technologies [Member] \| Europe [Member]
Disaggregation of Revenue [Abstract]
Net sales	97.6	85.8	285.0	270.5
Performance Technologies [Member] \| Asia [Member]
Disaggregation of Revenue [Abstract]
Net sales	53.0	55.0	152.8	155.4
Performance Technologies [Member] \| Heat Transfer [Member]
Disaggregation of Revenue [Abstract]
Net sales	0.0	0.0	0.0	0.0
Performance Technologies [Member] \| HVAC & Refrigeration [Member]
Disaggregation of Revenue [Abstract]
Net sales	0.0	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	0.0
Performance Technologies [Member] \| Air-Cooled [Member]
Disaggregation of Revenue [Abstract]
Net sales	158.9	138.1	481.2	415.8
Performance Technologies [Member] \| Liquid-Cooled [Member]
Disaggregation of Revenue [Abstract]
Net sales	117.3	106.8	347.2	322.6
Performance Technologies [Member] \| Advanced Solutions [Member]
Disaggregation of Revenue [Abstract]
Net sales	35.2	30.0	102.8	86.5
Performance Technologies [Member] \| Inter-segment Sales [Member]
Disaggregation of Revenue [Abstract]
Net sales	$ 6.4	$ 7.1	$ 20.9	$ 25.0