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Document and Entity Information - USD ($)
$ in Billions
12 Months Ended
Apr. 28, 2018
Jun. 19, 2018
Oct. 28, 2017
Document and Entity Information [Abstract]      
Entity Registrant Name METHODE ELECTRONICS INC    
Entity Central Index Key 0000065270    
Current Fiscal Year End Date --04-28    
Entity Filer Category Large Accelerated Filer    
Document Type 10-K    
Document Period End Date Apr. 28, 2018    
Document Fiscal Year Focus 2018    
Document Fiscal Period Focus FY    
Amendment Flag false    
Entity Common Stock, Shares Outstanding   37,005,449  
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Public Float     $ 1.5