$SMCI
Super Micro Computer, Inc. Stock $smci

$smci Overview Financials Valuation SEC Filings Company Website

2021 Q2 Form 10-K Financial Statement

#000137536521000060 Filed on August 27, 2021

Income Statement

Concept	2021 Q2	2020 Q2	2019
Revenue	$1.069B	$896.1M	$3.500B
YoY Change	19.29%	4.9%	4.16%
Cost Of Revenue	$923.5M	$772.6M	$3.005B
YoY Change	19.53%	6.98%	2.54%
Gross Profit	$145.5M	$123.5M	$495.5M
YoY Change	17.81%	-6.45%	15.24%
Gross Profit Margin	13.61%	13.78%	14.16%
Selling, General & Admin	$47.50M	$47.30M	$218.4M
YoY Change	0.42%	-15.08%	28.33%
% of Gross Profit	32.64%	38.29%	44.07%
Research & Development	$58.93M	$66.70M	$179.9M
YoY Change	-11.65%	44.37%	8.97%
% of Gross Profit	40.5%	54.0%	36.31%
Depreciation & Amortization	$6.885M	$7.500M	$24.20M
YoY Change	-8.2%	25.0%	10.78%
% of Gross Profit	4.73%	6.07%	4.88%
Operating Expenses	$106.4M	$114.1M	$398.3M
YoY Change	-6.72%	11.97%	18.79%
Operating Profit	$39.08M	$9.417M	$97.23M
YoY Change	315.0%	-68.75%	2.66%
Interest Expense	-$635.0K	-$600.0K	$6.690M
YoY Change	5.83%	-50.0%	16.84%
% of Operating Profit	-1.62%	-6.37%	6.88%
Other Income/Expense, Net	-$1.471M	-$700.0K	-$1.020M
YoY Change	110.14%	-58.82%	31.95%
Pretax Income	$36.98M	$8.100M	$45.13M
YoY Change	356.48%	-70.22%	14.55%
Income Tax	-$1.605M	-$6.900M	$14.88M
% Of Pretax Income	-4.34%	-85.19%	32.98%
Net Earnings	$39.16M	$18.45M	$71.92M
YoY Change	112.26%	-22.18%	55.78%
Net Earnings / Revenue	3.66%	2.06%	2.05%
Basic Earnings Per Share		$0.35	$1.44
Diluted Earnings Per Share	$741.9K	$0.34	$1.39
COMMON SHARES
Basic Shares Outstanding	49.93M shares	51.92M shares	49.92M shares
Diluted Shares Outstanding			51.72M shares

Balance Sheet

Concept	2021 Q2	2020 Q2	2019
SHORT-TERM ASSETS
Cash & Short-Term Investments	$232.3M	$210.5M	$248.2M
YoY Change	10.34%	-15.19%	115.08%
Cash & Equivalents	$232.3M	$210.5M	$248.2M
Short-Term Investments
Other Short-Term Assets	$6.116M	$4.507M	$26.70M
YoY Change	35.7%	17.92%	50.0%
Inventory	$1.041B	$851.5M	$670.2M
Prepaid Expenses	$6.719M	$7.075M
Receivables	$463.8M	$403.7M	$393.6M
Other Receivables	$99.92M	$109.2M	$83.10M
Total Short-Term Assets	$1.867B	$1.593B	$1.422B
YoY Change	17.23%	12.03%	-7.13%
LONG-TERM ASSETS
Property, Plant & Equipment	$274.7M	$233.8M	$207.3M
YoY Change	17.51%	12.76%	5.44%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments	$4.578M	$2.703M	$4.200M
YoY Change	69.37%	58.91%	-44.0%
Other Assets	$32.13M	$34.50M	$49.30M
YoY Change	-6.88%	223.66%	42.9%
Total Long-Term Assets	$374.7M	$325.9M	$260.8M
YoY Change	14.98%	24.94%	9.3%
TOTAL ASSETS
Total Short-Term Assets	$1.867B	$1.593B	$1.422B
Total Long-Term Assets	$374.7M	$325.9M	$260.8M
Total Assets	$2.242B	$1.919B	$1.683B
YoY Change	16.85%	14.03%	-4.91%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$612.3M	$417.7M	$360.5M
YoY Change	46.61%	15.87%	-31.62%
Accrued Expenses	$178.9M	$155.4M	$78.20M
YoY Change	15.09%	35.51%	32.99%
Deferred Revenue	$101.5M	$106.2M
YoY Change	-4.41%	12.75%
Short-Term Debt	$63.49M	$23.70M	$23.60M
YoY Change	167.85%	0.24%	-79.69%
Long-Term Debt Due	$63.50M	$23.70M
YoY Change	167.93%
Total Short-Term Liabilities	$968.9M	$707.6M	$606.0M
YoY Change	36.92%	16.78%	-25.33%
LONG-TERM LIABILITIES
Long-Term Debt	$34.70M	$5.697M	$0.00
YoY Change	509.09%
Other Long-Term Liabilities	$41.13M	$42.00M	$135.4M
YoY Change	-2.06%	60.39%	18.46%
Total Long-Term Liabilities	$75.83M	$47.69M	$135.4M
YoY Change	59.0%	82.15%	18.46%
TOTAL LIABILITIES
Total Short-Term Liabilities	$968.9M	$707.6M	$606.0M
Total Long-Term Liabilities	$75.83M	$47.69M	$135.4M
Total Liabilities	$1.146B	$852.9M	$741.6M
YoY Change	34.31%	15.04%	-19.91%
SHAREHOLDERS EQUITY
Retained Earnings	$657.8M	$696.2M
YoY Change	-5.52%	13.78%
Common Stock
YoY Change
Preferred Stock
YoY Change
Treasury Stock (at cost)	$0.00	$20.49M
YoY Change	-100.0%	0.0%
Treasury Stock Shares	0.000 shares	1.333M shares
Shareholders Equity	$1.096B	$1.066B	$941.0M
YoY Change
Total Liabilities & Shareholders Equity	$2.242B	$1.919B	$1.683B
YoY Change	16.85%	14.03%	-4.91%

Cashflow Statement

Concept	2021 Q2	2020 Q2	2019
OPERATING ACTIVITIES
Net Income	$39.16M	$18.45M	$71.92M
YoY Change	112.26%	-22.18%	55.78%
Depreciation, Depletion And Amortization	$6.885M	$7.500M	$24.20M
YoY Change	-8.2%	25.0%	10.78%
Cash From Operating Activities	$63.56M	-$96.00M	$262.6M
YoY Change	-166.2%	-217.22%	211.28%
INVESTING ACTIVITIES
Capital Expenditures	-$13.42M	-$9.400M	$24.85M
YoY Change	42.72%	4.44%	0.1%
Acquisitions
YoY Change
Other Investing Activities	$0.00	$0.00	$0.00
YoY Change			-100.0%
Cash From Investing Activities	-$13.42M	-$9.500M	-$24.85M
YoY Change	41.22%	5.56%	-4.15%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net			$0.00
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	3.960M	-1.600M	-$95.83M
YoY Change	-347.5%	-1700.0%	88.52%
NET CHANGE
Cash From Operating Activities	63.56M	-96.00M	$262.6M
Cash From Investing Activities	-13.42M	-9.500M	-$24.85M
Cash From Financing Activities	3.960M	-1.600M	-$95.83M
Net Change In Cash	54.10M	-107.1M	$141.8M
YoY Change	-150.51%	-246.71%	1768.93%
FREE CASH FLOW
Cash From Operating Activities	$63.56M	-$96.00M	$262.6M
Capital Expenditures	-$13.42M	-$9.400M	$24.85M
Free Cash Flow	$76.97M	-$86.60M	$237.7M
YoY Change	-188.88%	-195.27%	299.35%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2020	smci	Cancellation Fee Net Received From Canceled Joint Venture Reducing Research And Development Expense CancellationFeeNetReceivedFromCanceledJointVentureReducingResearchAndDevelopmentExpense	9500000	USD
CY2021Q2	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P3Y9M18D
CY2021Q2	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.034
CY2020Q1	smci	Share Based Compensation Arrangement By Share Based Payment Award Number Of Tranches ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfTranches	2	tranche
CY2020Q4	dei	Entity Public Float EntityPublicFloat	1374947450	USD
CY2021Q3	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	50590466	shares
CY2021	dei	Entity Address Address Line1 EntityAddressAddressLine1	980 Rock Avenue
CY2021	dei	Entity Shell Company EntityShellCompany	false
CY2021	dei	Entity Central Index Key EntityCentralIndexKey	0001375365
CY2021	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2021
CY2021	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2021	dei	Amendment Flag AmendmentFlag	false
CY2021Q2	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1
CY2021Q2	us-gaap	Operating Lease Liability Current Statement Of Financial Position Extensible List OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#AccruedLiabilitiesCurrent
CY2020Q2	us-gaap	Operating Lease Liability Current Statement Of Financial Position Extensible List OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#AccruedLiabilitiesCurrent
CY2020Q2	us-gaap	Operating Lease Liability Noncurrent Statement Of Financial Position Extensible List OperatingLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#OtherLiabilitiesNoncurrent
CY2021Q2	us-gaap	Operating Lease Liability Noncurrent Statement Of Financial Position Extensible List OperatingLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#OtherLiabilitiesNoncurrent
CY2021	dei	Document Type DocumentType	10-K
CY2021	dei	Document Annual Report DocumentAnnualReport	true
CY2021	dei	Document Period End Date DocumentPeriodEndDate	2021-06-30
CY2021	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--06-30
CY2021	dei	Document Transition Report DocumentTransitionReport	false
CY2021	dei	Entity File Number EntityFileNumber	001-33383
CY2021	dei	Entity Registrant Name EntityRegistrantName	Super Micro Computer, Inc.
CY2021	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2021	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	77-0353939
CY2021	dei	Entity Address City Or Town EntityAddressCityOrTown	San Jose
CY2021	dei	Entity Address State Or Province EntityAddressStateOrProvince	CA
CY2021	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	95131
CY2021	dei	City Area Code CityAreaCode	408
CY2021	dei	Local Phone Number LocalPhoneNumber	503-8000
CY2021	dei	Security12b Title Security12bTitle	Common Stock, $0.001 par value per share
CY2021	dei	Trading Symbol TradingSymbol	SMCI
CY2021	dei	Security Exchange Name SecurityExchangeName	NASDAQ
CY2021	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2021	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2021	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2021	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2021	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2021	dei	Entity Small Business EntitySmallBusiness	false
CY2021	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2021	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2021	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	8700000	USD
CY2021Q2	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	232266000	USD
CY2020Q2	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	210533000	USD
CY2021Q2	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	2591000	USD
CY2020Q2	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	4586000	USD
CY2021Q2	us-gaap	Accounts Receivable Related Parties Current AccountsReceivableRelatedPartiesCurrent	8678000	USD
CY2020Q2	us-gaap	Accounts Receivable Related Parties Current AccountsReceivableRelatedPartiesCurrent	8712000	USD
CY2021Q2	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	463834000	USD
CY2020Q2	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	403745000	USD
CY2021Q2	us-gaap	Inventory Net InventoryNet	1040964000	USD
CY2020Q2	us-gaap	Inventory Net InventoryNet	851498000	USD
CY2021Q2	smci	Prepaid Expenses Related Parties Current PrepaidExpensesRelatedPartiesCurrent	23748000	USD
CY2020Q2	smci	Prepaid Expenses Related Parties Current PrepaidExpensesRelatedPartiesCurrent	19791000	USD
CY2021Q2	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	130195000	USD
CY2020Q2	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	126985000	USD
CY2021Q2	us-gaap	Assets Current AssetsCurrent	1867259000	USD
CY2020Q2	us-gaap	Assets Current AssetsCurrent	1592761000	USD
CY2021Q2	us-gaap	Equity Method Investments EquityMethodInvestments	4578000	USD
CY2020Q2	us-gaap	Equity Method Investments EquityMethodInvestments	2703000	USD
CY2021Q2	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	274713000	USD
CY2020Q2	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	233785000	USD
CY2021Q2	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	63288000	USD
CY2020Q2	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	54898000	USD
CY2021Q2	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	32126000	USD
CY2020Q2	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	34499000	USD
CY2021Q2	us-gaap	Assets Assets	2241964000	USD
CY2020Q2	us-gaap	Assets Assets	1918646000	USD
CY2021Q2	us-gaap	Accounts Payable Related Parties Current AccountsPayableRelatedPartiesCurrent	70096000	USD
CY2020Q2	us-gaap	Accounts Payable Related Parties Current AccountsPayableRelatedPartiesCurrent	72368000	USD
CY2021Q2	us-gaap	Accounts Payable Current AccountsPayableCurrent	612336000	USD
CY2020Q2	us-gaap	Accounts Payable Current AccountsPayableCurrent	417673000	USD
CY2021Q2	smci	Accrued Liabilities Related Parties Current AccruedLiabilitiesRelatedPartiesCurrent	18528000	USD
CY2020Q2	smci	Accrued Liabilities Related Parties Current AccruedLiabilitiesRelatedPartiesCurrent	16206000	USD
CY2021Q2	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	178850000	USD
CY2020Q2	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	155401000	USD
CY2021Q2	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	12741000	USD
CY2020Q2	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	4700000	USD
CY2021Q2	us-gaap	Short Term Borrowings ShortTermBorrowings	63490000	USD
CY2020Q2	us-gaap	Short Term Borrowings ShortTermBorrowings	23704000	USD
CY2021Q2	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	101479000	USD
CY2020Q2	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	106157000	USD
CY2021Q2	us-gaap	Liabilities Current LiabilitiesCurrent	968896000	USD
CY2020Q2	us-gaap	Liabilities Current LiabilitiesCurrent	707635000	USD
CY2021Q2	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	100838000	USD
CY2020Q2	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	97612000	USD
CY2021Q2	us-gaap	Long Term Debt LongTermDebt	34700000	USD
CY2020Q2	us-gaap	Long Term Debt LongTermDebt	5697000	USD
CY2021Q2	smci	Other Long Term Liabilities Related Parties OtherLongTermLiabilitiesRelatedParties	0	USD
CY2020Q2	smci	Other Long Term Liabilities Related Parties OtherLongTermLiabilitiesRelatedParties	1699000	USD
CY2021Q2	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	41132000	USD
CY2020Q2	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	41995000	USD
CY2021Q2	us-gaap	Liabilities Liabilities	1145566000	USD
CY2020Q2	us-gaap	Liabilities Liabilities	852939000	USD
CY2021Q2	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2020Q2	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2020Q2	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.001
CY2021Q2	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.001
CY2020Q2	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	100000000	shares
CY2021Q2	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	100000000	shares
CY2021Q2	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	50582078	shares
CY2020Q2	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	52408703	shares
CY2021Q2	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	50582078	shares
CY2020Q2	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	53741828	shares
CY2021Q2	us-gaap	Common Stocks Including Additional Paid In Capital CommonStocksIncludingAdditionalPaidInCapital	438012000	USD
CY2020Q2	us-gaap	Common Stocks Including Additional Paid In Capital CommonStocksIncludingAdditionalPaidInCapital	389972000	USD
CY2021Q2	us-gaap	Treasury Stock Shares TreasuryStockShares	0	shares
CY2020Q2	us-gaap	Treasury Stock Shares TreasuryStockShares	1333125	shares
CY2021Q2	us-gaap	Treasury Stock Value TreasuryStockValue	0	USD
CY2020Q2	us-gaap	Treasury Stock Value TreasuryStockValue	20491000	USD
CY2021Q2	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	453000	USD
CY2020Q2	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-152000	USD
CY2021Q2	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	657760000	USD
CY2020Q2	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	696211000	USD
CY2021Q2	us-gaap	Stockholders Equity StockholdersEquity	1096225000	USD
CY2020Q2	us-gaap	Stockholders Equity StockholdersEquity	1065540000	USD
CY2021Q2	us-gaap	Minority Interest MinorityInterest	173000	USD
CY2020Q2	us-gaap	Minority Interest MinorityInterest	167000	USD
CY2021Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1096398000	USD
CY2020Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1065707000	USD
CY2021Q2	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	2241964000	USD
CY2020Q2	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1918646000	USD
CY2021	us-gaap	Revenue From Related Parties RevenueFromRelatedParties	79018000	USD
CY2020	us-gaap	Revenue From Related Parties RevenueFromRelatedParties	85759000	USD
CY2019	us-gaap	Revenue From Related Parties RevenueFromRelatedParties	69906000	USD
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	3557422000	USD
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	3339281000	USD
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	3500360000	USD
CY2021	us-gaap	Related Party Transaction Purchases From Related Party RelatedPartyTransactionPurchasesFromRelatedParty	239558000	USD
CY2020	us-gaap	Related Party Transaction Purchases From Related Party RelatedPartyTransactionPurchasesFromRelatedParty	283056000	USD
CY2019	us-gaap	Related Party Transaction Purchases From Related Party RelatedPartyTransactionPurchasesFromRelatedParty	276843000	USD
CY2021	us-gaap	Cost Of Revenue CostOfRevenue	3022884000	USD
CY2020	us-gaap	Cost Of Revenue CostOfRevenue	2813071000	USD
CY2019	us-gaap	Cost Of Revenue CostOfRevenue	3004838000	USD
CY2021	us-gaap	Gross Profit GrossProfit	534538000	USD
CY2020	us-gaap	Gross Profit GrossProfit	526210000	USD
CY2019	us-gaap	Gross Profit GrossProfit	495522000	USD
CY2021	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	224369000	USD
CY2020	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	221478000	USD
CY2019	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	179907000	USD
CY2021	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	85683000	USD
CY2020	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	85137000	USD
CY2019	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	77154000	USD
CY2021	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	100539000	USD
CY2020	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	133941000	USD
CY2019	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	141228000	USD
CY2021	us-gaap	Operating Expenses OperatingExpenses	410591000	USD
CY2020	us-gaap	Operating Expenses OperatingExpenses	440556000	USD
CY2019	us-gaap	Operating Expenses OperatingExpenses	398289000	USD
CY2021	us-gaap	Operating Income Loss OperatingIncomeLoss	123947000	USD
CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	85654000	USD
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	97233000	USD
CY2021	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-2834000	USD
CY2020	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	1410000	USD
CY2019	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-1020000	USD
CY2021	us-gaap	Interest Expense InterestExpense	2485000	USD
CY2020	us-gaap	Interest Expense InterestExpense	2236000	USD
CY2019	us-gaap	Interest Expense InterestExpense	6690000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	118628000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	84828000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	89523000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	6936000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2922000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	14884000	USD
CY2021	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	173000	USD
CY2020	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	2402000	USD
CY2019	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-2721000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	111865000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	84308000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	71918000	USD
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.19
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.65
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.44
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.09
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.60
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.39
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	51157000	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	50987000	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	49917000	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	53507000	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	52838000	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	51716000	shares
CY2021	us-gaap	Net Income Loss NetIncomeLoss	111865000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	84308000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	71918000	USD
CY2021	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax	605000	USD
CY2020	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax	-72000	USD
CY2019	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax	-245000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	605000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-72000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-245000	USD
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	112470000	USD
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	84236000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	71673000	USD
CY2018Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	843652000	USD
CY2019	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	0	USD
CY2019	smci	Adjustments To Additional Paid In Capital Shares Withheld For Tax Withholding Obligation Value AdjustmentsToAdditionalPaidInCapitalSharesWithheldForTaxWithholdingObligationValue	3051000	USD
CY2019	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	21184000	USD
CY2019	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax	-245000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	71922000	USD
CY2019Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	941176000	USD
CY2020	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	28343000	USD
CY2020	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	0	USD
CY2020	smci	Adjustments To Additional Paid In Capital Shares Withheld For Tax Withholding Obligation Value AdjustmentsToAdditionalPaidInCapitalSharesWithheldForTaxWithholdingObligationValue	8243000	USD
CY2020	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	20189000	USD
CY2020	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax	-72000	USD
CY2020	us-gaap	Profit Loss ProfitLoss	84314000	USD
CY2020Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1065707000	USD
CY2021	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	28387000	USD
CY2021	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	0	USD
CY2021	smci	Adjustments To Additional Paid In Capital Shares Withheld For Tax Withholding Obligation Value AdjustmentsToAdditionalPaidInCapitalSharesWithheldForTaxWithholdingObligationValue	8721000	USD
CY2021	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	130000000	USD
CY2021	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	28549000	USD
CY2021	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax	605000	USD
CY2021	us-gaap	Profit Loss ProfitLoss	111871000	USD
CY2021Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1096398000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	111865000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	84308000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	71918000	USD
CY2021	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	28185000	USD
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	28472000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	24202000	USD
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	28549000	USD
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	20189000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	21184000	USD
CY2021	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	-820000	USD
CY2020	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	-3081000	USD
CY2019	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	7058000	USD
CY2021	us-gaap	Inventory Write Down InventoryWriteDown	6805000	USD
CY2020	us-gaap	Inventory Write Down InventoryWriteDown	18373000	USD
CY2019	us-gaap	Inventory Write Down InventoryWriteDown	32946000	USD
CY2021	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	1044000	USD
CY2020	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-1364000	USD
CY2019	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-733000	USD
CY2021	us-gaap	Impairment Of Investments ImpairmentOfInvestments	0	USD
CY2020	us-gaap	Impairment Of Investments ImpairmentOfInvestments	0	USD
CY2019	us-gaap	Impairment Of Investments ImpairmentOfInvestments	2661000	USD
CY2021	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	173000	USD
CY2020	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	2402000	USD
CY2019	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-2721000	USD
CY2021	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-2482000	USD
CY2020	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-1008000	USD
CY2019	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	313000	USD
CY2021	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	-8390000	USD
CY2020	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	-13772000	USD
CY2019	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	-17100000	USD
CY2021	us-gaap	Increase Decrease In Accounts Receivable Related Parties IncreaseDecreaseInAccountsReceivableRelatedParties	-34000	USD
CY2020	us-gaap	Increase Decrease In Accounts Receivable Related Parties IncreaseDecreaseInAccountsReceivableRelatedParties	-4727000	USD
CY2019	us-gaap	Increase Decrease In Accounts Receivable Related Parties IncreaseDecreaseInAccountsReceivableRelatedParties	10357000	USD
CY2021	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	59325000	USD
CY2020	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	7023000	USD
CY2019	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-85027000	USD
CY2021	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	196271000	USD
CY2020	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	199683000	USD
CY2019	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-119314000	USD
CY2021	smci	Increase Decreasein Prepaid Expensesand Other Current Assets Related Parties IncreaseDecreaseinPrepaidExpensesandOtherCurrentAssetsRelatedParties	3957000	USD
CY2020	smci	Increase Decreasein Prepaid Expensesand Other Current Assets Related Parties IncreaseDecreaseinPrepaidExpensesandOtherCurrentAssetsRelatedParties	-1511000	USD
CY2019	smci	Increase Decreasein Prepaid Expensesand Other Current Assets Related Parties IncreaseDecreaseinPrepaidExpensesandOtherCurrentAssetsRelatedParties	-2714000	USD
CY2021	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	5291000	USD
CY2020	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	29869000	USD
CY2019	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-8410000	USD
CY2021	us-gaap	Increase Decrease In Accounts Payable Related Parties IncreaseDecreaseInAccountsPayableRelatedParties	-2272000	USD
CY2020	us-gaap	Increase Decrease In Accounts Payable Related Parties IncreaseDecreaseInAccountsPayableRelatedParties	12559000	USD
CY2019	us-gaap	Increase Decrease In Accounts Payable Related Parties IncreaseDecreaseInAccountsPayableRelatedParties	-18001000	USD
CY2021	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	189309000	USD
CY2020	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	59889000	USD
CY2019	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-173410000	USD
CY2021	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	8041000	USD
CY2020	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	-8321000	USD
CY2019	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	5831000	USD
CY2021	smci	Increase Decreasein Accrued Liability Related Parties IncreaseDecreaseinAccruedLiabilityRelatedParties	2322000	USD
CY2020	smci	Increase Decreasein Accrued Liability Related Parties IncreaseDecreaseinAccruedLiabilityRelatedParties	5670000	USD
CY2019	smci	Increase Decreasein Accrued Liability Related Parties IncreaseDecreaseinAccruedLiabilityRelatedParties	-7858000	USD
CY2021	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	24705000	USD
CY2020	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	27865000	USD
CY2019	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	11456000	USD
CY2021	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	-1452000	USD
CY2020	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	350000	USD
CY2019	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	59800000	USD
CY2021	smci	Increase Decreasein Other Long Term Liabilities Related Parties IncreaseDecreaseinOtherLongTermLiabilitiesRelatedParties	-1699000	USD
CY2020	smci	Increase Decreasein Other Long Term Liabilities Related Parties IncreaseDecreaseinOtherLongTermLiabilitiesRelatedParties	-1301000	USD
CY2019	smci	Increase Decreasein Other Long Term Liabilities Related Parties IncreaseDecreaseinOtherLongTermLiabilitiesRelatedParties	-500000	USD
CY2021	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	-4220000	USD
CY2020	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	-8001000	USD
CY2019	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	116000	USD
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	122955000	USD
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-30334000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	262554000	USD
CY2021	smci	Paymentsto Acquire Property Plantand Equipment Related Party PaymentstoAcquirePropertyPlantandEquipmentRelatedParty	7347000	USD
CY2020	smci	Paymentsto Acquire Property Plantand Equipment Related Party PaymentstoAcquirePropertyPlantandEquipmentRelatedParty	4386000	USD
CY2019	smci	Paymentsto Acquire Property Plantand Equipment Related Party PaymentstoAcquirePropertyPlantandEquipmentRelatedParty	4472000	USD
CY2021	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	58016000	USD
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	44338000	USD
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	24849000	USD
CY2021	us-gaap	Proceeds From Sale Of Other Investments ProceedsFromSaleOfOtherInvestments	0	USD
CY2020	us-gaap	Proceeds From Sale Of Other Investments ProceedsFromSaleOfOtherInvestments	750000	USD
CY2019	us-gaap	Proceeds From Sale Of Other Investments ProceedsFromSaleOfOtherInvestments	0	USD
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-58016000	USD
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-43588000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-24849000	USD
CY2021	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	127059000	USD
CY2020	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	164791000	USD
CY2019	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	41760000	USD
CY2021	us-gaap	Repayments Of Debt RepaymentsOfDebt	60629000	USD
CY2020	us-gaap	Repayments Of Debt RepaymentsOfDebt	159191000	USD
CY2019	us-gaap	Repayments Of Debt RepaymentsOfDebt	67700000	USD
CY2021	us-gaap	Proceeds From Repayments Of Lines Of Credit ProceedsFromRepaymentsOfLinesOfCredit	0	USD
CY2020	us-gaap	Proceeds From Repayments Of Lines Of Credit ProceedsFromRepaymentsOfLinesOfCredit	-1116000	USD
CY2019	us-gaap	Proceeds From Repayments Of Lines Of Credit ProceedsFromRepaymentsOfLinesOfCredit	-65945000	USD
CY2021	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	561000	USD
CY2020	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	650000	USD
CY2019	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	625000	USD
CY2021	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	28387000	USD
CY2020	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	28343000	USD
CY2019	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	0	USD
CY2021	smci	Finance Lease Principal Payments Additions FinanceLeasePrincipalPaymentsAdditions	-25000	USD
CY2020	smci	Finance Lease Principal Payments Additions FinanceLeasePrincipalPaymentsAdditions	138000	USD
CY2019	us-gaap	Repayments Of Long Term Capital Lease Obligations RepaymentsOfLongTermCapitalLeaseObligations	267000	USD
CY2021	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	8721000	USD
CY2020	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	8243000	USD
CY2019	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	3051000	USD
CY2021	us-gaap	Payments For Repurchase Of Equity PaymentsForRepurchaseOfEquity	130000000	USD
CY2020	us-gaap	Payments For Repurchase Of Equity PaymentsForRepurchaseOfEquity	0	USD
CY2019	us-gaap	Payments For Repurchase Of Equity PaymentsForRepurchaseOfEquity	0	USD
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-44440000	USD
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	23796000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-95828000	USD
CY2021	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	560000	USD
CY2020	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	376000	USD
CY2019	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-119000	USD
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	21059000	USD
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-49750000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	141758000	USD
CY2020Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	212390000	USD
CY2019Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	262140000	USD
CY2018Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	120382000	USD
CY2021Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	233449000	USD
CY2020Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	212390000	USD
CY2019Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	262140000	USD
CY2021	us-gaap	Interest Paid Net InterestPaidNet	1948000	USD
CY2020	us-gaap	Interest Paid Net InterestPaidNet	2172000	USD
CY2019	us-gaap	Interest Paid Net InterestPaidNet	3861000	USD
CY2021	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	2914000	USD
CY2020	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	43317000	USD
CY2019	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	23604000	USD
CY2021	smci	Capital Expenditures Incurredbut Notyet Paid Related Party CapitalExpendituresIncurredbutNotyetPaidRelatedParty	400000	USD
CY2020	smci	Capital Expenditures Incurredbut Notyet Paid Related Party CapitalExpendituresIncurredbutNotyetPaidRelatedParty	2223000	USD
CY2019	smci	Capital Expenditures Incurredbut Notyet Paid Related Party CapitalExpendituresIncurredbutNotyetPaidRelatedParty	1609000	USD
CY2021	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	9003000	USD
CY2020	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	12051000	USD
CY2019	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	9232000	USD
CY2021	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	3258000	USD
CY2020	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	0	USD
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	0	USD
CY2021	smci	Noncash Contribution Equity Method Investment NoncashContributionEquityMethodInvestment	0	USD
CY2020	smci	Noncash Contribution Equity Method Investment NoncashContributionEquityMethodInvestment	0	USD
CY2019	smci	Noncash Contribution Equity Method Investment NoncashContributionEquityMethodInvestment	3000000	USD
CY2021	us-gaap	Use Of Estimates UseOfEstimates	Use of EstimatesU.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting periods. Such estimates include, but are not limited to revenue recognition, allowances for doubtful accounts and sales returns, inventory valuation, useful lives of property, plant and equipment, product warranty accruals, stock-based compensation, impairment of investments and long-lived assets, and income taxes. The Company’s estimates are evaluated on an ongoing basis and changes in the estimates are recognized prospectively. Actual results could differ from those estimates. The Company considered estimates of the economic implications of the COVID-19 pandemic on its critical and significant accounting estimates, including an assessment of the collectability of each customer contract as part of the revenue recognition process, assessment of the valuation of accounts receivable, assessment of provision for excess and obsolete inventory and an impairment of long-lived assets.
CY2020	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	0	USD
CY2019	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	0	USD
CY2021	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	0	USD
CY2021	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	-800000	USD
CY2020	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	-3100000	USD
CY2019	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	7100000	USD
CY2020Q2	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	12379000	USD
CY2019Q2	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	11034000	USD
CY2018Q2	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	9884000	USD
CY2021	us-gaap	Standard Product Warranty Accrual Warranties Issued StandardProductWarrantyAccrualWarrantiesIssued	29638000	USD
CY2020	us-gaap	Standard Product Warranty Accrual Warranties Issued StandardProductWarrantyAccrualWarrantiesIssued	35962000	USD
CY2019	us-gaap	Standard Product Warranty Accrual Warranties Issued StandardProductWarrantyAccrualWarrantiesIssued	22991000	USD
CY2021	us-gaap	Standard Product Warranty Accrual Payments StandardProductWarrantyAccrualPayments	30575000	USD
CY2020	us-gaap	Standard Product Warranty Accrual Payments StandardProductWarrantyAccrualPayments	34502000	USD
CY2019	us-gaap	Standard Product Warranty Accrual Payments StandardProductWarrantyAccrualPayments	26281000	USD
CY2021	us-gaap	Standard Product Warranty Accrual Preexisting Increase Decrease StandardProductWarrantyAccrualPreexistingIncreaseDecrease	1421000	USD
CY2020	us-gaap	Standard Product Warranty Accrual Preexisting Increase Decrease StandardProductWarrantyAccrualPreexistingIncreaseDecrease	-115000	USD
CY2019	us-gaap	Standard Product Warranty Accrual Preexisting Increase Decrease StandardProductWarrantyAccrualPreexistingIncreaseDecrease	4440000	USD
CY2021Q2	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	12863000	USD
CY2020Q2	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	12379000	USD
CY2019Q2	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	11034000	USD
CY2021Q2	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	10185000	USD
CY2020Q2	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	9984000	USD
CY2019Q2	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	8661000	USD
CY2021Q2	us-gaap	Product Warranty Accrual Noncurrent ProductWarrantyAccrualNoncurrent	2678000	USD
CY2020Q2	us-gaap	Product Warranty Accrual Noncurrent ProductWarrantyAccrualNoncurrent	2395000	USD
CY2019Q2	us-gaap	Product Warranty Accrual Noncurrent ProductWarrantyAccrualNoncurrent	2373000	USD
CY2021	us-gaap	Research And Development Arrangement Contract To Perform For Others Compensation Earned ResearchAndDevelopmentArrangementContractToPerformForOthersCompensationEarned	10900000	USD
CY2020	us-gaap	Research And Development Arrangement Contract To Perform For Others Compensation Earned ResearchAndDevelopmentArrangementContractToPerformForOthersCompensationEarned	2100000	USD
CY2019	us-gaap	Research And Development Arrangement Contract To Perform For Others Compensation Earned ResearchAndDevelopmentArrangementContractToPerformForOthersCompensationEarned	2800000	USD
CY2021	us-gaap	Advertising Expense AdvertisingExpense	4100000	USD
CY2020	us-gaap	Advertising Expense AdvertisingExpense	3000000	USD
CY2019	us-gaap	Advertising Expense AdvertisingExpense	2400000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	111865000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	84308000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	71918000	USD
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	51157000	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	50987000	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	49917000	shares
CY2021	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	2350000	shares
CY2020	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	1851000	shares
CY2019	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	1799000	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	53507000	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	52838000	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	51716000	shares
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.19
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.65
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.44
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.09
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.60
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.39
CY2021	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	Concentration of Supplier RiskCertain materials used by the Company in the manufacturing of its products are available from a limited number of suppliers. Shortages could occur in these materials due to an interruption of supply or increased demand in the industry.Concentration of Credit RiskFinancial instruments which potentially subject the Company to concentration of credit risk consist primarily of cash and cash equivalents, restricted cash, investment in an auction rate security and accounts receivable.
CY2021Q2	us-gaap	Equity Securities Without Readily Determinable Fair Value Amount EquitySecuritiesWithoutReadilyDeterminableFairValueAmount	100000	USD
CY2019	us-gaap	Impairment Of Investments ImpairmentOfInvestments	2700000	USD
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	3557422000	USD
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	3339281000	USD
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	3500360000	USD
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	3557422000	USD
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	3339281000	USD
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	3500360000	USD
CY2020Q2	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	203800000	USD
CY2021	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	101600000	USD
CY2021	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	-1500000	USD
CY2021Q2	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	202300000	USD
CY2021Q2	us-gaap	Revenue Remaining Performance Obligation Percentage RevenueRemainingPerformanceObligationPercentage	0.50
CY2021Q2	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P12M
CY2021Q2	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	761694000	USD
CY2020Q2	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	656817000	USD
CY2021Q2	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	80472000	USD
CY2020Q2	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	38146000	USD
CY2021Q2	us-gaap	Inventory Raw Materials And Supplies Net Of Reserves InventoryRawMaterialsAndSuppliesNetOfReserves	198798000	USD
CY2020Q2	us-gaap	Inventory Raw Materials And Supplies Net Of Reserves InventoryRawMaterialsAndSuppliesNetOfReserves	156535000	USD
CY2021Q2	us-gaap	Inventory Net InventoryNet	1040964000	USD
CY2020Q2	us-gaap	Inventory Net InventoryNet	851498000	USD
CY2021	us-gaap	Inventory Write Down InventoryWriteDown	6800000	USD
CY2020	us-gaap	Inventory Write Down InventoryWriteDown	18400000	USD
CY2019	us-gaap	Inventory Write Down InventoryWriteDown	32900000	USD
CY2021Q2	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	420535000	USD
CY2020Q2	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	360531000	USD
CY2021Q2	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	145822000	USD
CY2020Q2	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	126746000	USD
CY2021Q2	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	274713000	USD
CY2020Q2	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	233785000	USD
CY2021Q2	smci	Accounts Receivable Vendor Current AccountsReceivableVendorCurrent	99921000	USD
CY2020Q2	smci	Accounts Receivable Vendor Current AccountsReceivableVendorCurrent	96669000	USD
CY2021Q2	us-gaap	Prepaid Taxes PrepaidTaxes	12288000	USD
CY2020Q2	us-gaap	Prepaid Taxes PrepaidTaxes	14323000	USD
CY2021Q2	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	6719000	USD
CY2020Q2	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	7075000	USD
CY2021Q2	us-gaap	Deferred Costs Current DeferredCostsCurrent	4900000	USD
CY2020Q2	us-gaap	Deferred Costs Current DeferredCostsCurrent	4161000	USD
CY2021Q2	us-gaap	Restricted Cash Current RestrictedCashCurrent	251000	USD
CY2020Q2	us-gaap	Restricted Cash Current RestrictedCashCurrent	250000	USD
CY2021Q2	us-gaap	Other Assets Current OtherAssetsCurrent	6116000	USD
CY2020Q2	us-gaap	Other Assets Current OtherAssetsCurrent	4507000	USD
CY2021Q2	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	130195000	USD
CY2020Q2	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	126985000	USD
CY2021Q2	smci	Accounts Receivable Manufacturer Current AccountsReceivableManufacturerCurrent	76200000	USD
CY2020Q2	smci	Accounts Receivable Manufacturer Current AccountsReceivableManufacturerCurrent	83800000	USD
CY2021Q2	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	20047000	USD
CY2020Q2	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	23784000	USD
CY2021Q2	us-gaap	Deferred Costs DeferredCosts	5421000	USD
CY2020Q2	us-gaap	Deferred Costs DeferredCosts	4632000	USD
CY2021Q2	us-gaap	Deposits Assets Noncurrent DepositsAssetsNoncurrent	1669000	USD
CY2020Q2	us-gaap	Deposits Assets Noncurrent DepositsAssetsNoncurrent	1201000	USD
CY2021Q2	us-gaap	Prepaid Expense Noncurrent PrepaidExpenseNoncurrent	1973000	USD
CY2020Q2	us-gaap	Prepaid Expense Noncurrent PrepaidExpenseNoncurrent	1576000	USD
CY2021Q2	us-gaap	Available For Sale Securities Debt Securities Noncurrent AvailableForSaleSecuritiesDebtSecuritiesNoncurrent	1556000	USD
CY2020Q2	us-gaap	Available For Sale Securities Debt Securities Noncurrent AvailableForSaleSecuritiesDebtSecuritiesNoncurrent	1571000	USD
CY2021Q2	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	932000	USD
CY2020Q2	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	1607000	USD
CY2021Q2	us-gaap	Other Assets Miscellaneous Noncurrent OtherAssetsMiscellaneousNoncurrent	528000	USD
CY2020Q2	us-gaap	Other Assets Miscellaneous Noncurrent OtherAssetsMiscellaneousNoncurrent	128000	USD
CY2021Q2	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	32126000	USD
CY2020Q2	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	34499000	USD
CY2021Q2	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	232266000	USD
CY2020Q2	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	210533000	USD
CY2021Q2	us-gaap	Restricted Cash Current RestrictedCashCurrent	251000	USD
CY2020Q2	us-gaap	Restricted Cash Current RestrictedCashCurrent	250000	USD
CY2021Q2	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	932000	USD
CY2020Q2	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	1607000	USD
CY2020Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	212390000	USD
CY2020Q2	us-gaap	Accrued Marketing Costs Current AccruedMarketingCostsCurrent	5925000	USD
CY2021Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	233449000	USD
CY2021Q2	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	45770000	USD
CY2020Q2	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	33577000	USD
CY2021Q2	smci	Payable Manufacturer PayableManufacturer	45319000	USD
CY2020Q2	smci	Payable Manufacturer PayableManufacturer	36249000	USD
CY2021Q2	smci	Accrued Customer Deposits Current AccruedCustomerDepositsCurrent	32419000	USD
CY2020Q2	smci	Accrued Customer Deposits Current AccruedCustomerDepositsCurrent	9942000	USD
CY2021Q2	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	10185000	USD
CY2020Q2	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	9984000	USD
CY2021Q2	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	6322000	USD
CY2020Q2	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	6310000	USD
CY2021Q2	us-gaap	Accrued Marketing Costs Current AccruedMarketingCostsCurrent	5652000	USD
CY2021Q2	us-gaap	Accrued Professional Fees Current AccruedProfessionalFeesCurrent	2737000	USD
CY2020Q2	us-gaap	Accrued Professional Fees Current AccruedProfessionalFeesCurrent	5661000	USD
CY2021Q2	us-gaap	Loss Contingency Accrual Carrying Value Current LossContingencyAccrualCarryingValueCurrent	0	USD
CY2020Q2	us-gaap	Loss Contingency Accrual Carrying Value Current LossContingencyAccrualCarryingValueCurrent	18114000	USD
CY2021Q2	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	30446000	USD
CY2020Q2	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	29639000	USD
CY2021Q2	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	178850000	USD
CY2020Q2	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	155401000	USD
CY2020Q1	smci	Number Of Board Members Performance Awards NumberOfBoardMembersPerformanceAwards	2	boardMember
CY2020Q1	smci	Number Of Board Members Performance Awards NumberOfBoardMembersPerformanceAwards	2	boardMember
CY2021	smci	Number Of Board Members Performance Awards NumberOfBoardMembersPerformanceAwards	2	boardMember
CY2021Q2	us-gaap	Accrued Bonuses Current And Noncurrent AccruedBonusesCurrentAndNoncurrent	3600000	USD
CY2020Q2	us-gaap	Accrued Bonuses Current And Noncurrent AccruedBonusesCurrentAndNoncurrent	2100000	USD
CY2021Q2	smci	Unrecognized Bonus Compensation Expense UnrecognizedBonusCompensationExpense	500000	USD
CY2021	smci	Unrecognized Bonus Compensation Expense Period UnrecognizedBonusCompensationExpensePeriod	P0Y2M4D
CY2021	smci	Bonus Compensation Expense BonusCompensationExpense	5800000	USD
CY2020	smci	Bonus Compensation Expense BonusCompensationExpense	2100000	USD
CY2021Q2	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	4957000	USD
CY2021Q2	us-gaap	Debt Longterm And Shortterm Combined Amount DebtLongtermAndShorttermCombinedAmount	98190000	USD
CY2020Q2	us-gaap	Debt Longterm And Shortterm Combined Amount DebtLongtermAndShorttermCombinedAmount	29401000	USD
CY2021Q2	smci	Short Term Debt And Long Term Debt Current Maturities ShortTermDebtAndLongTermDebtCurrentMaturities	63490000	USD
CY2020Q2	smci	Short Term Debt And Long Term Debt Current Maturities ShortTermDebtAndLongTermDebtCurrentMaturities	23704000	USD
CY2021Q2	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	34700000	USD
CY2020Q2	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	5697000	USD
CY2021Q2	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	63490000	USD
CY2021Q2	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	413000	USD
CY2021Q2	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	4957000	USD
CY2021Q2	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	4957000	USD
CY2021Q2	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	19416000	USD
CY2021Q2	us-gaap	Debt Longterm And Shortterm Combined Amount DebtLongtermAndShorttermCombinedAmount	98190000	USD
CY2021Q2	smci	Accrued Unrecognized Tax Benefits Including Related Interestsand Penalties Noncurrent AccruedUnrecognizedTaxBenefitsIncludingRelatedInterestsandPenaltiesNoncurrent	17841000	USD
CY2020Q2	smci	Accrued Unrecognized Tax Benefits Including Related Interestsand Penalties Noncurrent AccruedUnrecognizedTaxBenefitsIncludingRelatedInterestsandPenaltiesNoncurrent	15496000	USD
CY2021Q2	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	14539000	USD
CY2020Q2	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	18102000	USD
CY2021Q2	us-gaap	Product Warranty Accrual Noncurrent ProductWarrantyAccrualNoncurrent	2678000	USD
CY2020Q2	us-gaap	Product Warranty Accrual Noncurrent ProductWarrantyAccrualNoncurrent	2395000	USD
CY2021Q2	us-gaap	Other Accrued Liabilities Noncurrent OtherAccruedLiabilitiesNoncurrent	6074000	USD
CY2020Q2	us-gaap	Other Accrued Liabilities Noncurrent OtherAccruedLiabilitiesNoncurrent	6002000	USD
CY2021Q2	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	41132000	USD
CY2020Q2	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	41995000	USD
CY2021	us-gaap	Operating Lease Cost OperatingLeaseCost	7827000	USD
CY2020	us-gaap	Operating Lease Cost OperatingLeaseCost	6993000	USD
CY2021	us-gaap	Operating Lease Payments OperatingLeasePayments	7966000	USD
CY2020	us-gaap	Operating Lease Payments OperatingLeasePayments	6411000	USD
CY2021	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	3538000	USD
CY2020	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	15229000	USD
CY2021	us-gaap	Short Term Lease Payments ShortTermLeasePayments	1800000	USD
CY2020	us-gaap	Short Term Lease Payments ShortTermLeasePayments	1300000	USD
CY2019	us-gaap	Short Term Lease Payments ShortTermLeasePayments	0	USD
CY2021Q2	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	6932000	USD
CY2021Q2	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	5430000	USD
CY2021Q2	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	4538000	USD
CY2021Q2	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	4382000	USD
CY2021Q2	smci	Lessee Operating Lease Liability To Be Paid After Year Four LesseeOperatingLeaseLiabilityToBePaidAfterYearFour	1017000	USD
CY2021Q2	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	22299000	USD
CY2021Q2	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	1438000	USD
CY2021Q2	us-gaap	Operating Lease Liability OperatingLeaseLiability	20861000	USD
CY2020Q4	smci	Common Stock Retired To Treasury Stock Shares CommonStockRetiredToTreasuryStockShares	2475419	shares
CY2021	us-gaap	Stock Repurchased And Retired During Period Shares StockRepurchasedAndRetiredDuringPeriodShares	4209211	shares
CY2021	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	130000000	USD
CY2020	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	11.97
CY2020Q2	smci	Stock Repurchased In Prior Period And Retired During Period Shares StockRepurchasedInPriorPeriodAndRetiredDuringPeriodShares	1333125	shares
CY2020Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	5379768	shares
CY2021	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	28549000	USD
CY2020	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	20189000	USD
CY2019	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	21184000	USD
CY2021	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	8574000	USD
CY2020	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	6814000	USD
CY2019	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	4349000	USD
CY2021	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	19975000	USD
CY2020	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	13375000	USD
CY2019	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	16835000	USD
CY2021Q2	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Number Of Exercisable Options ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions	3448888	shares
CY2021Q2	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Exercisable Options Weighted Average Exercise Price1 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1	20.47
CY2018Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	8301138	shares
CY2018Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	16.50
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	434320	shares
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	18.58
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	1360823	shares
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	8.94
CY2019Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	7374635	shares
CY2019Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	18.02
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	273260	shares
CY2020	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	19.61
CY2020	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	1812000	shares
CY2020	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	15.74
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	456127	shares
CY2020Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	19.38
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	1517110	shares
CY2021	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	40.49
CY2021	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	1645800	shares
CY2021	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	17.25
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	75524	shares
CY2021	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	24.43
CY2021Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	5175554	shares
CY2021Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	26.17
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P5Y4M9D
CY2021Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	57099000	USD
CY2021Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	3448888	shares
CY2021Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice	20.47
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P3Y4M28D
CY2021Q2	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	50887000	USD
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CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	19300000	USD
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	0	USD
CY2021	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Lower Range Limit ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit	9.24
CY2021	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Upper Range Limit ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit	45.00
CY2021Q2	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Number Of Outstanding Options ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions	5175554	shares
CY2021	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Outstanding Options Weighted Average Remaining Contractual Term2 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2	P5Y4M9D
CY2021Q2	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Outstanding Options Weighted Average Exercise Price Beginning Balance1 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1	26.17
CY2020	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	8200000	USD
CY2019	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	3100000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	80922000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	35701000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	45126000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	37706000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	49127000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	44397000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	118628000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	84828000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	89523000	USD
CY2020	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-10108000	USD
CY2020	smci	Tax Cuts And Jobs Act Foreign Derived Intangible Income Income Tax Expense Benefit TaxCutsAndJobsActForeignDerivedIntangibleIncomeIncomeTaxExpenseBenefit	-1900000	USD
CY2021	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	3406000	USD
CY2020	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	4568000	USD
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	12308000	USD
CY2021	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	1077000	USD
CY2020	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	1727000	USD
CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	2917000	USD
CY2021	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	10843000	USD
CY2020	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	10399000	USD
CY2019	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	16531000	USD
CY2021	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	15326000	USD
CY2020	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	16694000	USD
CY2019	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	31756000	USD
CY2021	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-5489000	USD
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-13078000	USD
CY2021	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-409000	USD
CY2020	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-1621000	USD
CY2019	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-2888000	USD
CY2021	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-2492000	USD
CY2020	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-2043000	USD
CY2019	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-906000	USD
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-8390000	USD
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-13772000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-16872000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	6936000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2922000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	14884000	USD
CY2021Q2	us-gaap	Deferred Tax Assets In Process Research And Development DeferredTaxAssetsInProcessResearchAndDevelopment	30540000	USD
CY2020Q2	us-gaap	Deferred Tax Assets In Process Research And Development DeferredTaxAssetsInProcessResearchAndDevelopment	24304000	USD
CY2021Q2	smci	Deferred Tax Assets Tax Deferred Expense Reservesand Accruals Marketing Fund Reserves DeferredTaxAssetsTaxDeferredExpenseReservesandAccrualsMarketingFundReserves	720000	USD
CY2021Q2	smci	Deferred Tax Assets Deferred Revenue DeferredTaxAssetsDeferredRevenue	18584000	USD
CY2020Q2	smci	Deferred Tax Assets Deferred Revenue DeferredTaxAssetsDeferredRevenue	20354000	USD
CY2021Q2	us-gaap	Deferred Tax Assets Inventory DeferredTaxAssetsInventory	13831000	USD
CY2020Q2	us-gaap	Deferred Tax Assets Inventory DeferredTaxAssetsInventory	13946000	USD
CY2021Q2	smci	Deferred Tax Assets Capitalized Research And Development Costs DeferredTaxAssetsCapitalizedResearchAndDevelopmentCosts	15206000	USD
CY2020Q2	smci	Deferred Tax Assets Capitalized Research And Development Costs DeferredTaxAssetsCapitalizedResearchAndDevelopmentCosts	7509000	USD
CY2021Q2	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	3868000	USD
CY2020Q2	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	4075000	USD
CY2021Q2	smci	Deferred Tax Assets Operating Lease Liability DeferredTaxAssetsOperatingLeaseLiability	2861000	USD
CY2020Q2	smci	Deferred Tax Assets Operating Lease Liability DeferredTaxAssetsOperatingLeaseLiability	3632000	USD
CY2021Q2	smci	Deferred Tax Assets Tax Deferred Expense Compensationand Benefits Employee Bonusesand Accrued Vacation DeferredTaxAssetsTaxDeferredExpenseCompensationandBenefitsEmployeeBonusesandAccruedVacation	5098000	USD
CY2020Q2	smci	Deferred Tax Assets Tax Deferred Expense Compensationand Benefits Employee Bonusesand Accrued Vacation DeferredTaxAssetsTaxDeferredExpenseCompensationandBenefitsEmployeeBonusesandAccruedVacation	3281000	USD
CY2021Q2	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	1179000	USD
CY2020Q2	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	2560000	USD
CY2021Q2	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Warranty Reserves DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsWarrantyReserves	2154000	USD
CY2020Q2	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Warranty Reserves DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsWarrantyReserves	2051000	USD
CY2021Q2	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Loss Reserves DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsLossReserves	1668000	USD
CY2020Q2	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Loss Reserves DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsLossReserves	1917000	USD
CY2020Q2	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	54900000	USD
CY2020Q2	smci	Deferred Tax Assets Tax Deferred Expense Reservesand Accruals Marketing Fund Reserves DeferredTaxAssetsTaxDeferredExpenseReservesandAccrualsMarketingFundReserves	548000	USD
CY2021Q2	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	4460000	USD
CY2020Q2	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	3652000	USD
CY2021Q2	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	100169000	USD
CY2020Q2	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	87829000	USD
CY2021Q2	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	4137000	USD
CY2020Q2	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	4428000	USD
CY2021Q2	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	2831000	USD
CY2020Q2	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	3612000	USD
CY2021Q2	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	29913000	USD
CY2020Q2	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	24891000	USD
CY2021Q2	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	63288000	USD
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CY2021	smci	Increase Decrease In Tax Credit Carryforward Valuation Allowance IncreaseDecreaseInTaxCreditCarryforwardValuationAllowance	-5000000	USD
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CY2021Q2	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	63300000	USD
CY2021	smci	Tax Cuts And Jobs Act Foreign Derived Intangible Income Income Tax Expense Benefit TaxCutsAndJobsActForeignDerivedIntangibleIncomeIncomeTaxExpenseBenefit	-3000000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Research EffectiveIncomeTaxRateReconciliationTaxCreditsResearch	0.095
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Tax Contingencies EffectiveIncomeTaxRateReconciliationTaxContingencies	0.020
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CY2020	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2019	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2021	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.003
CY2020	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0
CY2019	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.005
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.005
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	0
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	0.011
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Research EffectiveIncomeTaxRateReconciliationTaxCreditsResearch	0.105
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Research EffectiveIncomeTaxRateReconciliationTaxCreditsResearch	0.131
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Tax Contingencies EffectiveIncomeTaxRateReconciliationTaxContingencies	0.041
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Tax Contingencies EffectiveIncomeTaxRateReconciliationTaxContingencies	-0.023
CY2021	smci	Effective Income Tax Rate Reconciliation Subpart F Income EffectiveIncomeTaxRateReconciliationSubpartFIncome	0.025
CY2020	smci	Effective Income Tax Rate Reconciliation Subpart F Income EffectiveIncomeTaxRateReconciliationSubpartFIncome	0.038
CY2019	smci	Effective Income Tax Rate Reconciliation Subpart F Income EffectiveIncomeTaxRateReconciliationSubpartFIncome	0.021
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	-0.033
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	-0.028
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	0.021
CY2021	smci	Effective Income Tax Rate Reconciliation Nondeductible Expense Penalty On Sec Matter Percent EffectiveIncomeTaxRateReconciliationNondeductibleExpensePenaltyOnSECMatterPercent	0
CY2020	smci	Effective Income Tax Rate Reconciliation Nondeductible Expense Penalty On Sec Matter Percent EffectiveIncomeTaxRateReconciliationNondeductibleExpensePenaltyOnSECMatterPercent	0.044
CY2019	smci	Effective Income Tax Rate Reconciliation Nondeductible Expense Penalty On Sec Matter Percent EffectiveIncomeTaxRateReconciliationNondeductibleExpensePenaltyOnSECMatterPercent	0
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Prior Year Income Taxes EffectiveIncomeTaxRateReconciliationPriorYearIncomeTaxes	-0.019
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Prior Year Income Taxes EffectiveIncomeTaxRateReconciliationPriorYearIncomeTaxes	-0.011
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Prior Year Income Taxes EffectiveIncomeTaxRateReconciliationPriorYearIncomeTaxes	-0.016
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.012
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.011
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.010
CY2019	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.166
CY2021	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	1243000	USD
CY2020	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.034
CY2018Q2	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	25117000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	7789000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2019	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	1504000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	3354000	USD
CY2019Q2	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	28048000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	8769000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	505000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	7632000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	2484000	USD
CY2020Q2	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	27206000	USD
CY2021	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	13333000	USD
CY2021	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	1439000	USD
CY2021Q2	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	40735000	USD
CY2021Q2	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	27100000	USD
CY2020Q2	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	13400000	USD
CY2021Q2	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	2500000	USD
CY2020Q2	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	2100000	USD
CY2021Q2	us-gaap	Decrease In Unrecognized Tax Benefits Is Reasonably Possible DecreaseInUnrecognizedTaxBenefitsIsReasonablyPossible	1000000	USD
CY2018Q1	us-gaap	Loss Contingency Pending Claims Number LossContingencyPendingClaimsNumber	2	claim
CY2020Q3	us-gaap	Loss Contingency Accrual Payments LossContingencyAccrualPayments	17500000	USD
CY2021Q2	us-gaap	Purchase Obligation PurchaseObligation	569800000	USD
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CY2021Q2	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	274713000	USD
CY2020Q2	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	233785000	USD

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$SMCI
Super Micro Computer, Inc. Stock $smci

2021 Q2 Form 10-K Financial Statement

#000137536521000060 Filed on August 27, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$SMCI Super Micro Computer, Inc. Stock $smci

2021 Q2 Form 10-K Financial Statement

#000137536521000060 Filed on August 27, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$SMCI
Super Micro Computer, Inc. Stock $smci