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Document And Entity Information (USD $)
 12 Months Ended
Jun. 30, 2014
Aug. 31, 2014
Dec. 31, 2013
Document And Entity Information [Abstract]      
Document Type 10-K    
Amendment Flag false    
Document Period End Date Jun. 30, 2014    
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2014    
Entity Registrant Name Super Micro Computer, Inc.    
Entity Central Index Key 0001375365    
Current Fiscal Year End Date --06-30    
Entity Filer Category Accelerated Filer    
Entity Common Stock, Shares Outstanding   45,675,186  
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Public Float     $ 576,341,886