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Retirement Plans (Details) - USD ($)
 12 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2023
Super Micro Computer, B.V.      
Defined Benefit Plan Disclosure [Line Items]      
Company's discretionary contributions $ 1,100,000 $ 1,100,000 $ 900,000
401(k) Savings Plan      
Defined Benefit Plan Disclosure [Line Items]      
Company's discretionary contributions 0 0 0
Super Micro Computer, Taiwan Defined Benefit Pension Plan | Super Micro Computer, Taiwan      
Defined Benefit Plan Disclosure [Line Items]      
Company's contribution costs $ 4,600,000 4,100,000 3,600,000
R.O.C. Labor Standards Law Pension Plan | Super Micro Computer, Taiwan      
Defined Benefit Plan Disclosure [Line Items]      
Period for average salary amount 6 months    
Defined benefit plan, employer discretionary contribution, percent of match 2.00%    
Pension (credit) cost $ 100,000 $ 100,000 $ 100,000