CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
CONSOLIDATED STATEMENTS OF OPERATIONS [Abstract]
Net sales	$ 622.4	$ 541.0
Cost of sales	494.5	457.6
Gross profit	127.9	83.4
Selling, general and administrative expenses	61.4	56.3
Restructuring expenses	0.0	1.5
Operating income	66.5	25.6
Interest expense	(5.9)	(4.1)
Other expense - net	(0.6)	(2.3)
Earnings before income taxes	60.0	19.2
Provision for income taxes	(14.7)	(4.9)
Net earnings	45.3	14.3
Net earnings attributable to noncontrolling interest	(0.5)	0.0
Net earnings attributable to Modine	$ 44.8	$ 14.3
Net earnings per share attributable to Modine shareholders:
Basic (in dollars per share)	$ 0.86	$ 0.27
Diluted (in dollars per share)	$ 0.85	$ 0.27
Weighted-average shares outstanding:
Basic (in shares)	52.3	52.2
Diluted (in shares)	53.0	52.4