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Document And Entity Information (USD $)
9 Months Ended
Dec. 31, 2011
Feb. 01, 2012
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     $ 604,000,000
Entity Common Stock, Shares Outstanding   46,726,830  
Document Fiscal Year Focus 2012    
Document Fiscal Period Focus Q3    
Document Type 10-Q    
Amendment Flag false    
Document Period End Date Dec. 31, 2011