Annual report pursuant to Section 13 and 15(d)

Document and Entity Information

v3.7.0.1
Document and Entity Information - USD ($)
12 Months Ended
Mar. 31, 2017
May 25, 2017
Sep. 30, 2016
Document and Entity Information      
Entity Registrant Name KEMET CORP    
Entity Central Index Key 0000887730    
Document Type 10-K    
Document Period End Date Mar. 31, 2017    
Amendment Flag false    
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     $ 160,510,185
Entity Common Stock, Shares Outstanding   47,505,958  
Document Fiscal Year Focus 2017    
Document Fiscal Period Focus FY