Segment Information (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2025	Dec. 31, 2024
Segment Information [Abstract]
Non-disclosure of reportable segments			true
Net sales	$ 805.0	$ 616.8	$ 2,226.7	$ 1,936.3
Cost of sales	618.9	467.2	1,710.3	1,458.5
Gross profit	186.1	149.6	516.4	477.8
Selling, general and administrative expenses	89.3	82.0	258.4	250.6
Restructuring expenses	7.5	8.3	15.4	18.2
Impairment charge			4.1
Operating income	89.3	59.3	238.5	209.0
Climate Solutions
Segment Information [Abstract]
Net sales	542.0	360.7	1,393.4	1,084.3
Performance Technologies
Segment Information [Abstract]
Net sales	263.0	256.1	833.3	852.0
Operating segments
Segment Information [Abstract]
Net sales	810.6	623.0	2,234.2	1,953.2
Operating segments | Climate Solutions
Segment Information [Abstract]
Net sales	544.6	360.8	1,396.4	1,084.5
Cost of sales	409.5	257.7	1,036.4	774.3
Gross profit	135.1	103.1	360.0	310.2
Selling, general and administrative expenses	50.0	39.6	142.1	120.5
Restructuring expenses	1.9	1.1	5.6	2.8
Operating income	83.2	62.4	212.3	186.9
Operating segments | Performance Technologies
Segment Information [Abstract]
Net sales	266.0	262.2	837.8	868.7
Cost of sales	215.9	215.5	681.7	698.4
Gross profit	50.1	46.7	156.1	170.3
Selling, general and administrative expenses	18.7	25.4	60.3	78.5
Restructuring expenses	5.6	5.5	9.7	13.7
Impairment charge			4.1
Operating income	25.8	15.8	82.0	78.1
Inter-segment Sales
Segment Information [Abstract]
Net sales	5.6	6.2	7.5	16.9
Inter-segment Sales | Climate Solutions
Segment Information [Abstract]
Net sales	2.6	0.1	3.0	0.2
Inter-segment Sales | Performance Technologies
Segment Information [Abstract]
Net sales	3.0	6.1	4.5	16.7
Corporate and eliminations
Segment Information [Abstract]
Net sales	(5.6)	(6.2)	(7.5)	(16.9)
Cost of sales	(6.5)	(6.0)	(7.8)	(14.2)
Gross profit	0.9	(0.2)	0.3	(2.7)
Selling, general and administrative expenses	20.6	17.0	56.0	51.6
Restructuring expenses		1.7	0.1	1.7
Operating income	$ (19.7)	$ (18.9)	$ (55.8)	$ (56.0)