Segment Information (Details) - USD ($) $ in Millions		3 Months Ended
		Jun. 30, 2023	Jun. 30, 2022	Mar. 31, 2023
Segment Information [Abstract]
Net sales		$ 622.4	$ 541.0
Gross profit		$ 127.9	$ 83.4
Gross profit (% of sales)		20.60%	15.40%
Operating income		$ 66.5	$ 25.6
Total assets		1,607.9		$ 1,565.9
Climate Solutions [Member]
Segment Information [Abstract]
Net sales		271.8	244.2
Performance Technologies [Member]
Segment Information [Abstract]
Net sales		350.6	296.8
Other [Member]
Segment Information [Abstract]
Total assets	[1]	874.6		843.0
Operating Segments [Member]
Segment Information [Abstract]
Net sales		630.7	548.7
Gross profit		$ 127.6	$ 83.4
Gross profit (% of sales)		20.20%	15.20%
Operating income		$ 76.3	$ 34.4
Operating Segments [Member] | Segment Total [Member]
Segment Information [Abstract]
Net sales		630.7	548.7
Operating Segments [Member] | Climate Solutions [Member]
Segment Information [Abstract]
Net sales		271.8	244.4
Gross profit		$ 69.0	$ 50.4
Gross profit (% of sales)		25.40%	20.60%
Operating income		$ 44.3	$ 27.0
Total assets		355.0		334.8
Operating Segments [Member] | Performance Technologies [Member]
Segment Information [Abstract]
Net sales		358.9	304.3
Gross profit		$ 58.6	$ 33.0
Gross profit (% of sales)		16.30%	10.80%
Operating income		$ 32.0	$ 7.4
Total assets		378.3		$ 388.1
Inter-segment Sales [Member]
Segment Information [Abstract]
Net sales		(8.3)	(7.7)
Inter-segment Sales [Member] | Climate Solutions [Member]
Segment Information [Abstract]
Net sales		0.0	0.2
Inter-segment Sales [Member] | Performance Technologies [Member]
Segment Information [Abstract]
Net sales		8.3	7.5
Corporate and Eliminations [Member]
Segment Information [Abstract]
Gross profit		$ 0.3	$ 0.0
Gross profit (% of sales)		0.00%	0.00%
Operating income		$ (9.8)	$ (8.8)

[1] Represents cash and cash equivalents, other current assets, property plant and equipment, intangible assets, goodwill, deferred income taxes, and other noncurrent assets for the Climate Solutions and Performance Technologies segments and Corporate.