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Cover - USD ($)
 12 Months Ended
Jun. 30, 2025
Jul. 31, 2025
Dec. 31, 2024
Cover [Abstract]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Jun. 30, 2025    
Current Fiscal Year End Date --06-30    
Document Transition Report false    
Entity File Number 001-33383    
Entity Registrant Name Super Micro Computer, Inc.    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 77-0353939    
Entity Address, Address Line One 980 Rock Avenue    
Entity Address, City or Town San Jose    
Entity Address, State or Province CA    
Entity Address, Postal Zip Code 95131    
City Area Code 408    
Local Phone Number 503-8000    
Title of 12(b) Security Common Stock, $0.001 par value per share    
Trading Symbol SMCI    
Security Exchange Name NASDAQ    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Large Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag true    
Document Financial Statement Error Correction [Flag] false    
Entity Shell Company false    
Entity Public Float     $ 15,529,499,954
Entity Common Stock, Shares Outstanding   594,273,308  
Documents Incorporated by Reference
None
    
Entity Central Index Key 0001375365    
Document Fiscal Year Focus 2025    
Document Fiscal Period Focus FY    
Amendment Flag false