CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) [Abstract]
Net earnings (loss)	$ (3.4)	$ (8.4)	$ 12.2	$ (21.2)
Other comprehensive income (loss):
Foreign currency translation	0.9	3.7	6.8	(10.2)
Defined benefit plans	1.3	0.8	3.8	2.6
Cash flow hedges	0.1	0.7	0.3	2.4
Total other comprehensive income (loss)	2.3	5.2	10.9	(5.2)
Comprehensive income (loss)	(1.1)	(3.2)	23.1	(26.4)
Comprehensive income attributable to noncontrolling interest	(0.2)	(0.3)	(1.2)	(0.9)
Comprehensive income (loss) attributable to Modine	$ (1.3)	$ (3.5)	$ 21.9	$ (27.3)