CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) [Abstract]
Net earnings (loss)	$ 10.6	$ (0.9)
Other comprehensive loss:
Foreign currency translation	(4.3)	(19.0)
Defined benefit plans	1.3	1.0
Cash flow hedges	0.1	0.8
Total other comprehensive loss	(2.9)	(17.2)
Comprehensive income (loss)	7.7	(18.1)
Comprehensive income attributable to noncontrolling interest	(0.6)	(0.3)
Comprehensive income (loss) attributable to Modine	$ 7.1	$ (18.4)