CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) [Abstract]
Net sales	$ 377.3	$ 364.2	$ 769.8	$ 740.0
Cost of sales	320.6	307.0	645.4	620.9
Gross profit	56.7	57.2	124.4	119.1
Selling, general and administrative expenses	47.8	46.0	90.6	88.4
Restructuring expenses	1.0	0.6	1.8	1.1
Operating income	7.9	10.6	32.0	29.6
Interest expense	(3.0)	(3.2)	(6.1)	(6.2)
Other income (expense) - net	0.5	0	0.3	(0.5)
Earnings before income taxes	5.4	7.4	26.2	22.9
Provision for income taxes	(3.4)	(2.4)	(10.1)	(7.3)
Net earnings	2.0	5.0	16.1	15.6
Net earnings attributable to noncontrolling interest	(0.3)	(0.4)	(0.7)	(1.0)
Net earnings attributable to Modine	$ 1.7	$ 4.6	$ 15.4	$ 14.6
Net earnings per share attributable to Modine shareholders:
Basic (in dollars per share)	$ 0.04	$ 0.10	$ 0.32	$ 0.31
Diluted (in dollars per share)	$ 0.04	$ 0.10	$ 0.32	$ 0.31
Weighted average shares outstanding:
Basic (in shares)	47.2	46.8	47.1	46.8
Diluted (in shares)	47.7	47.6	47.7	47.4