Document And Entity Information (USD $) In Millions, except Share data	6 Months Ended
	Sep. 30, 2011	Oct. 28, 2011	Sep. 30, 2010
Entity Registrant Name	MODINE MANUFACTURING CO
Entity Central Index Key	0000067347
Current Fiscal Year End Date	--03-31
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Accelerated Filer
Entity Public Float			$ 604
Entity Common Stock, Shares Outstanding		46,727,495
Document Fiscal Year Focus	2011
Document Fiscal Period Focus	Q2
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2011