Commitments and Contingencies	6 Months Ended
Commitments and Contingencies	Dec. 31, 2019
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Litigation and Claims— On February 8, 2018, two putative class action complaints were filed against the Company, the Company's Chief Executive Officer, and the Company's former Chief Financial Officer in the U.S. District Court for the Northern District of California (Hessefort v. Super Micro Computer, Inc., et al., No. 18-cv-00838 and United Union of Roofers v. Super Micro Computer, Inc., et al., No. 18-cv-00850). The complaints contain similar allegations, claiming that the defendants violated Section 10(b) of the Securities Exchange Act due to alleged misrepresentations and/or omissions in public statements regarding recognition of revenue. The court subsequently appointed New York Hotel Trades Council & Hotel Association of New York City, Inc. Pension Fund as lead plaintiff. The lead plaintiff then filed an amended complaint naming the Company's Senior Vice President of Investor Relations as an additional defendant. On June 21, 2019, the lead plaintiff filed a further amended complaint naming the Company's former Senior Vice President of International Sales, Corporate Secretary, and Director as an additional defendant. On July 26, 2019, the Company filed a motion to dismiss the complaint, which motion remains pending with the court. The Company believes the allegations filed are without merit, and intends to vigorously defend against the lawsuit. From time to time, the Company has been involved in various legal proceedings arising from the normal course of business activities. In management’s opinion, the resolution of any matters will not have a material adverse effect on the Company’s consolidated financial condition, results of operations or liquidity. The Company has entered into indemnification agreements with its current and former directors and executive officers. Under these agreements, the Company has agreed to indemnify such individuals to the fullest extent permitted by law against liabilities that arise by reason of their status as directors or officers and to advance expenses incurred by such individuals in connection with related legal proceedings. It is not possible to determine the maximum potential amount of payments the Company could be required to make under these agreements due to the limited history of prior indemnification claims and the unique facts and circumstances involved in each claim. However, the Company maintains directors and officers liability insurance coverage to reduce its exposure to such obligations. Purchase Commitments— The Company has agreements to purchase inventory and non-inventory items primarily through the next 12 months. As of December 31, 2019, these remaining noncancelable commitments were $579.2 million, including $134.0 million for related parties. Standby Letter of Credit— In October 2018, Bank of America issued a standby letter of credit on behalf of the Company to a beneficiary for an initial value of $3.2 million to facilitate the ongoing operations of the Company. The standby letter of credit is automatically extended without amendment for successive one-year periods from the original expiration date of November 1, 2019 and will do so until canceled through written notice from the issuer. In October 2019, upon the Company's request, Bank of America increased the amount under the letter of credit issued to the beneficiary to $6.4 million. No amounts have been drawn under the standby letter of credit.