Goodwill and Intangible Assets (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Mar. 31, 2022
Goodwill [Roll Forward]
Goodwill, beginning balance			$ 168.1
Effect of exchange rate changes			(7.2)
Goodwill, ending balance	$ 160.9		160.9
Intangible Assets [Abstract]
Gross carrying value	128.7		128.7		$ 135.1
Accumulated amortization	(46.3)		(46.3)		(44.8)
Net intangible assets	82.4		82.4		90.3
Amortization expense	2.0	$ 2.1	4.0	$ 4.2
Estimated Future Amortization Expense [Abstract]
Remainder of fiscal 2023	4.0		4.0
2024	8.0		8.0
2025	8.0		8.0
2026	8.0		8.0
2027	8.0		8.0
2028	8.0		8.0
Climate Solutions [Member]
Goodwill [Roll Forward]
Goodwill, beginning balance			108.1
Effect of exchange rate changes			(6.8)
Goodwill, ending balance	101.3		101.3
Performance Technologies [Member]
Goodwill [Roll Forward]
Goodwill, beginning balance			60.0
Effect of exchange rate changes			(0.4)
Goodwill, ending balance	59.6		59.6
Customer Relationships [Member]
Intangible Assets [Abstract]
Gross carrying value	57.9		57.9		61.2
Accumulated amortization	(20.6)		(20.6)		(20.1)
Net intangible assets	37.3		37.3		41.1
Trade Names [Member]
Intangible Assets [Abstract]
Gross carrying value	49.3		49.3		50.8
Accumulated amortization	(14.6)		(14.6)		(13.8)
Net intangible assets	34.7		34.7		37.0
Acquired Technology [Member]
Intangible Assets [Abstract]
Gross carrying value	21.5		21.5		23.1
Accumulated amortization	(11.1)		(11.1)		(10.9)
Net intangible assets	$ 10.4		$ 10.4		$ 12.2