$QMCO
QUANTUM CORP /DE/ Stock $qmco

$qmco Overview Financials Valuation SEC Filings Company Website

2021 Q1 Form 10-Q Financial Statement

#000070928321000002 Filed on January 27, 2021

Income Statement

Concept	2021 Q1	2020 Q4	2019 Q4
Revenue	$92.40M	$98.02M	$103.3M
YoY Change	4.76%	-5.12%	1.31%
Cost Of Revenue	$53.50M	$55.74M	$56.24M
YoY Change	2.69%	-0.88%	-4.51%
Gross Profit	$38.90M	$42.28M	$47.08M
YoY Change	7.76%	-10.19%	9.27%
Gross Profit Margin	42.1%	43.13%	45.57%
Selling, General & Admin	$24.00M	$26.40M	$26.14M
YoY Change	-1.23%	0.98%	-14.22%
% of Gross Profit	61.7%	62.44%	55.53%
Research & Development	$11.70M	$9.589M	$9.325M
YoY Change	27.17%	2.83%	17.93%
% of Gross Profit	30.08%	22.68%	19.81%
Depreciation & Amortization	$1.800M	$1.300M	$1.100M
YoY Change	50.0%	18.18%	10.0%
% of Gross Profit	4.63%	3.07%	2.34%
Operating Expenses	$35.70M	$36.19M	$35.40M
YoY Change	6.57%	2.22%	-10.62%
Operating Profit	$3.200M	$6.093M	$11.68M
YoY Change	23.08%	-47.81%	235.87%
Interest Expense	-$5.700M	$7.808M	$6.425M
YoY Change	-9.52%	21.53%	3.0%
% of Operating Profit	-178.13%	128.15%	55.03%
Other Income/Expense, Net	$100.0K	-$698.0K	-$611.0K
YoY Change	-50.0%	14.24%	-115.89%
Pretax Income	-$18.10M	-$2.413M	$4.639M
YoY Change	417.14%	-152.02%	-217.47%
Income Tax	-$600.0K	$256.0K	-$110.0K
% Of Pretax Income			-2.37%
Net Earnings	-$17.50M	-$2.669M	$4.749M
YoY Change	360.53%	-156.2%	-210.8%
Net Earnings / Revenue	-18.94%	-2.72%	4.6%
Basic Earnings Per Share		-$0.07	$0.12
Diluted Earnings Per Share	-$347.9K	-$0.07	$0.10
COMMON SHARES
Basic Shares Outstanding	41.55M shares	40.93M shares	38.13M shares
Diluted Shares Outstanding		40.93M shares	46.57M shares

Balance Sheet

Concept	2021 Q1	2020 Q4	2019 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$27.40M	$11.60M	$7.500M
YoY Change	328.13%	54.67%	-31.19%
Cash & Equivalents	$27.43M	$11.63M	$7.542M
Short-Term Investments
Other Short-Term Assets	$3.046M	$7.946M	$8.451M
YoY Change	-64.12%	-5.98%	7.29%
Inventory	$47.90M	$56.90M	$44.10M
Prepaid Expenses	$3.893M
Receivables	$73.10M	$69.44M	$74.88M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$156.1M	$146.6M	$135.9M
YoY Change	14.9%	7.92%	1.71%
LONG-TERM ASSETS
Property, Plant & Equipment	$10.05M	$9.855M	$8.546M
YoY Change	11.11%	15.32%	-2.59%
Goodwill	$3.466M	$3.447M
YoY Change
Intangibles	$5.037M	$5.503M
YoY Change
Long-Term Investments
YoY Change
Other Assets	$5.921M	$5.244M	$3.973M
YoY Change	72.47%	31.99%	-47.94%
Total Long-Term Assets	$38.86M	$39.15M	$29.43M
YoY Change	28.81%	33.02%	37.49%
TOTAL ASSETS
Total Short-Term Assets	$156.1M	$146.6M	$135.9M
Total Long-Term Assets	$38.86M	$39.15M	$29.43M
Total Assets	$194.9M	$185.8M	$165.3M
YoY Change	17.43%	12.39%	6.65%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$35.25M	$30.03M	$44.64M
YoY Change	-4.61%	-32.74%	15.14%
Accrued Expenses	$18.75M	$37.70M	$31.10M
YoY Change	6.95%	21.22%	22.95%
Deferred Revenue	$84.03M	$75.44M	$74.62M
YoY Change	3.11%	1.11%
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$1.850M	$1.850M	$1.650M
YoY Change	-74.73%	12.12%	10.0%
Total Short-Term Liabilities	$159.1M	$145.0M	$152.0M
YoY Change	0.53%	-4.62%	-10.1%
LONG-TERM LIABILITIES
Long-Term Debt	$90.90M	$178.3M	$152.4M
YoY Change	-38.1%	16.99%	11.18%
Other Long-Term Liabilities	$13.06M	$13.42M	$10.94M
YoY Change	17.07%	22.66%	2.32%
Total Long-Term Liabilities	$13.06M	$13.42M	$10.94M
YoY Change	-91.74%	22.66%	-92.59%
TOTAL LIABILITIES
Total Short-Term Liabilities	$159.1M	$145.0M	$152.0M
Total Long-Term Liabilities	$13.06M	$13.42M	$10.94M
Total Liabilities	$307.2M	$379.8M	$360.8M
YoY Change	-15.73%	5.26%	2.72%
SHAREHOLDERS EQUITY
Retained Earnings	-$738.6M	-$721.2M	-$699.3M
YoY Change	5.04%	3.12%	1.57%
Common Stock	$627.2M	$526.7M	$504.8M
YoY Change	23.92%	4.34%	2.25%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	-$112.2M	-$194.0M	-$195.5M
YoY Change
Total Liabilities & Shareholders Equity	$194.9M	$185.8M	$165.3M
YoY Change	17.43%	12.39%	6.65%

Cashflow Statement

Concept	2021 Q1	2020 Q4	2019 Q4
OPERATING ACTIVITIES
Net Income	-$17.50M	-$2.669M	$4.749M
YoY Change	360.53%	-156.2%	-210.8%
Depreciation, Depletion And Amortization	$1.800M	$1.300M	$1.100M
YoY Change	50.0%	18.18%	10.0%
Cash From Operating Activities	$19.50M	-$1.000M	$4.700M
YoY Change	413.16%	-121.28%	-146.53%
INVESTING ACTIVITIES
Capital Expenditures	-$2.200M	-$3.300M	-$1.000M
YoY Change	633.33%	230.0%	100.0%
Acquisitions
YoY Change
Other Investing Activities	-$100.0K	-$2.600M
YoY Change	-95.0%
Cash From Investing Activities	-$2.300M	-$5.900M	-$1.000M
YoY Change	0.0%	490.0%	100.0%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net	$103.5M
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-1.500M	5.900M	-2.100M
YoY Change	-44.44%	-380.95%	-113.46%
NET CHANGE
Cash From Operating Activities	19.50M	-1.000M	4.700M
Cash From Investing Activities	-2.300M	-5.900M	-1.000M
Cash From Financing Activities	-1.500M	5.900M	-2.100M
Net Change In Cash	15.70M	-1.000M	1.600M
YoY Change	-1408.33%	-162.5%	-68.0%
FREE CASH FLOW
Cash From Operating Activities	$19.50M	-$1.000M	$4.700M
Capital Expenditures	-$2.200M	-$3.300M	-$1.000M
Free Cash Flow	$21.70M	$2.300M	$5.700M
YoY Change	429.27%	-59.65%	-159.38%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	dei	Entity Registrant Name EntityRegistrantName	QUANTUM CORP /DE/
	dei	Entity Central Index Key EntityCentralIndexKey	0000709283
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--03-31
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2021
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q3
	dei	Amendment Flag AmendmentFlag	false
CY2020Q1	us-gaap	Operating Lease Liability Current Statement Of Financial Position Extensible List OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	us-gaap:OtherLiabilitiesCurrent
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	314734000	USD
CY2020Q4	us-gaap	Operating Lease Liability Current Statement Of Financial Position Extensible List OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	us-gaap:OtherLiabilitiesCurrent
	dei	Document Type DocumentType	10-Q
	dei	Document Quarterly Report DocumentQuarterlyReport	true
	dei	Document Period End Date DocumentPeriodEndDate	2020-12-31
	dei	Document Transition Report DocumentTransitionReport	false
	dei	Entity File Number EntityFileNumber	001-13449
	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	94-2665054
	dei	Entity Address Address Line1 EntityAddressAddressLine1	224 Airport Parkway
	dei	Entity Address Address Line2 EntityAddressAddressLine2	Suite 550
	dei	Entity Address City Or Town EntityAddressCityOrTown	San Jose
	dei	Entity Address State Or Province EntityAddressStateOrProvince	CA
	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	95110
	dei	City Area Code CityAreaCode	(408)
	dei	Local Phone Number LocalPhoneNumber	944-4000
	dei	Security12b Title Security12bTitle	Common Stock, $0.01 par value per share
	dei	Trading Symbol TradingSymbol	QMCO
	dei	Security Exchange Name SecurityExchangeName	NASDAQ
	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
	dei	Entity Filer Category EntityFilerCategory	Accelerated Filer
	dei	Entity Small Business EntitySmallBusiness	false
	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
	dei	Entity Shell Company EntityShellCompany	false
CY2021Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	41553718	shares
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	11632000	USD
CY2020Q1	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	6440000	USD
CY2020Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	766000	USD
CY2020Q1	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	830000	USD
CY2020Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	1430000	USD
CY2020Q1	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	1247000	USD
CY2020Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	69440000	USD
CY2020Q1	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	70370000	USD
CY2020Q4	qtm	Manufacturing Inventories Net ManufacturingInventoriesNet	33854000	USD
CY2020Q1	qtm	Manufacturing Inventories Net ManufacturingInventoriesNet	29196000	USD
CY2020Q4	qtm	Service Parts Inventories ServicePartsInventories	22998000	USD
CY2020Q1	qtm	Service Parts Inventories ServicePartsInventories	20502000	USD
CY2020Q4	us-gaap	Other Assets Current OtherAssetsCurrent	7946000	USD
CY2020Q1	us-gaap	Other Assets Current OtherAssetsCurrent	8489000	USD
CY2020Q4	us-gaap	Assets Current AssetsCurrent	146636000	USD
CY2020Q1	us-gaap	Assets Current AssetsCurrent	135827000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	9855000	USD
CY2020Q1	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	9046000	USD
CY2020Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	5503000	USD
CY2020Q1	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	0	USD
CY2020Q4	us-gaap	Goodwill Goodwill	3447000	USD
CY2020Q1	us-gaap	Goodwill Goodwill	0	USD
CY2020Q4	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	5000000	USD
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CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	10096000	USD
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	10096000	USD
CY2020Q1	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	12689000	USD
CY2020Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	5244000	USD
CY2020Q1	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	3433000	USD
CY2020Q4	us-gaap	Assets Assets	185781000	USD
CY2020Q1	us-gaap	Assets Assets	165995000	USD
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CY2020Q1	us-gaap	Accounts Payable Current AccountsPayableCurrent	36949000	USD
CY2020Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	75442000	USD
CY2020Q1	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	81492000	USD
CY2020Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	1850000	USD
CY2020Q1	us-gaap	Long Term Debt Current LongTermDebtCurrent	7321000	USD
CY2020Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	19225000	USD
CY2020Q1	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	14957000	USD
CY2020Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	18449000	USD
CY2020Q1	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	17535000	USD
CY2020Q4	us-gaap	Liabilities Current LiabilitiesCurrent	144993000	USD
CY2020Q1	us-gaap	Liabilities Current LiabilitiesCurrent	158254000	USD
CY2020Q4	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	34565000	USD
CY2020Q1	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	37443000	USD
CY2020Q4	us-gaap	Long Term Debt LongTermDebt	178276000	USD
CY2020Q1	us-gaap	Long Term Debt LongTermDebt	146847000	USD
CY2020Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	8500000	USD
CY2020Q1	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	10822000	USD
CY2020Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	13423000	USD
CY2020Q1	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	11154000	USD
CY2020Q4	us-gaap	Liabilities Liabilities	379757000	USD
CY2020Q1	us-gaap	Liabilities Liabilities	364520000	USD
CY2020Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2020Q1	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2020Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	20000000	shares
CY2020Q1	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	20000000	shares
	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	46101000	USD
CY2020Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2020Q1	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2020Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2020Q1	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2020Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2020Q1	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2020Q1	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	125000000	shares
CY2020Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	125000000	shares
CY2020Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	41554000	shares
CY2020Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	41554000	shares
CY2020Q1	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	39905000	shares
CY2020Q1	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	39905000	shares
CY2020Q4	us-gaap	Common Stock Value CommonStockValue	416000	USD
CY2020Q1	us-gaap	Common Stock Value CommonStockValue	399000	USD
CY2020Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	526307000	USD
CY2020Q1	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	505762000	USD
CY2020Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-721161000	USD
CY2020Q1	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-703164000	USD
CY2020Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	462000	USD
CY2020Q1	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-1522000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	-193976000	USD
CY2020Q1	us-gaap	Stockholders Equity StockholdersEquity	-198525000	USD
CY2020Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	185781000	USD
CY2020Q1	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	165995000	USD
CY2020Q4	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	98023000	USD
CY2019Q4	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	103315000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	257149000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	314734000	USD
CY2020Q4	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	55744000	USD
CY2019Q4	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	56239000	USD
	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	145284000	USD
	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	178309000	USD
	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	178309000	USD
CY2020Q4	us-gaap	Gross Profit GrossProfit	42279000	USD
CY2019Q4	us-gaap	Gross Profit GrossProfit	47076000	USD
	us-gaap	Gross Profit GrossProfit	111865000	USD
	us-gaap	Gross Profit GrossProfit	136425000	USD
	us-gaap	Gross Profit GrossProfit	136425000	USD
CY2020Q4	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	9589000	USD
CY2019Q4	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	9325000	USD
	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	29983000	USD
	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	29983000	USD
	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	27058000	USD
CY2020Q4	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	15294000	USD
CY2019Q4	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	15421000	USD
	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	40019000	USD
	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	40019000	USD
CY2020Q4	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	11103000	USD
CY2019Q4	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	10719000	USD
	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	32928000	USD
	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	32928000	USD
	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	43623000	USD
CY2020Q4	us-gaap	Restructuring Charges RestructuringCharges	200000	USD
CY2019Q4	us-gaap	Restructuring Charges RestructuringCharges	-64000	USD
	us-gaap	Restructuring Charges RestructuringCharges	1020000	USD
CY2020Q4	us-gaap	Operating Expenses OperatingExpenses	36186000	USD
CY2019Q4	us-gaap	Operating Expenses OperatingExpenses	35401000	USD
	us-gaap	Operating Expenses OperatingExpenses	105767000	USD
	us-gaap	Operating Expenses OperatingExpenses	105767000	USD
	us-gaap	Operating Expenses OperatingExpenses	117802000	USD
CY2020Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	6093000	USD
CY2019Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	11675000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	6098000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	6098000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	18623000	USD
CY2020Q4	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-698000	USD
CY2020Q4	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-698000	USD
CY2019Q4	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-611000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-1395000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-446000	USD
CY2020Q4	us-gaap	Interest Expense InterestExpense	7808000	USD
CY2020Q4	us-gaap	Interest Expense InterestExpense	7808000	USD
CY2019Q4	us-gaap	Interest Expense InterestExpense	6425000	USD
	us-gaap	Interest Expense InterestExpense	21823000	USD
	us-gaap	Interest Expense InterestExpense	19079000	USD
CY2020Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-2413000	USD
CY2019Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	4639000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-17120000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-902000	USD
CY2020Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	256000	USD
CY2020Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	256000	USD
CY2019Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-110000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	877000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	877000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	471000	USD
CY2020Q4	us-gaap	Net Income Loss NetIncomeLoss	-2669000	USD
CY2019Q4	us-gaap	Net Income Loss NetIncomeLoss	4749000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-17997000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-17997000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-1373000	USD
CY2020Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.07
CY2019Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.12
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.45
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.04
CY2020Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.07
CY2019Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.10
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.45
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.04
CY2020Q4	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	40927000	shares
CY2019Q4	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	38134000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	40374000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	40374000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	36828000	shares
CY2020Q4	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	40927000	shares
CY2019Q4	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	46567000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	40374000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	40374000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	36828000	shares
CY2020Q4	us-gaap	Net Income Loss NetIncomeLoss	-2669000	USD
CY2019Q4	us-gaap	Net Income Loss NetIncomeLoss	4749000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-17997000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-17997000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-17997000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-17997000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-1373000	USD
CY2020Q4	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	975000	USD
CY2019Q4	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	839000	USD
	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	1984000	USD
	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	1984000	USD
	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	1984000	USD
	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	449000	USD
CY2020Q4	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-1694000	USD
CY2019Q4	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	5588000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-16013000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-16013000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-16013000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-924000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-17997000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-17997000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-17997000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-17997000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-1373000	USD
	us-gaap	Depreciation Depreciation	3898000	USD
	us-gaap	Depreciation Depreciation	3119000	USD
	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	4906000	USD
	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	3012000	USD
	qtm	Long Term Debt Restatement Costs LongTermDebtRestatementCosts	167000	USD
	qtm	Long Term Debt Restatement Costs LongTermDebtRestatementCosts	0	USD
	qtm	Service Parts Inventory Write Down ServicePartsInventoryWriteDown	4764000	USD
	qtm	Service Parts Inventory Write Down ServicePartsInventoryWriteDown	4946000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	6428000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	5408000	USD
	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	123000	USD
	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	220000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	6000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	242000	USD
	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-1984000	USD
	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-479000	USD
	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-1342000	USD
	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-11731000	USD
	qtm	Increase Decrease In Manufacturing Inventories Net IncreaseDecreaseInManufacturingInventoriesNet	7732000	USD
	qtm	Increase Decrease In Manufacturing Inventories Net IncreaseDecreaseInManufacturingInventoriesNet	8915000	USD
	qtm	Increase Decrease In Service Parts Inventories Net IncreaseDecreaseInServicePartsInventoriesNet	4559000	USD
	qtm	Increase Decrease In Service Parts Inventories Net IncreaseDecreaseInServicePartsInventoriesNet	2881000	USD
	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-7022000	USD
	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	7676000	USD
	us-gaap	Increase Decrease In Restructuring Reserve IncreaseDecreaseInRestructuringReserve	210000	USD
	us-gaap	Increase Decrease In Restructuring Reserve IncreaseDecreaseInRestructuringReserve	-2876000	USD
	us-gaap	Increase Decrease In Employee Related Liabilities IncreaseDecreaseInEmployeeRelatedLiabilities	4268000	USD
	us-gaap	Increase Decrease In Employee Related Liabilities IncreaseDecreaseInEmployeeRelatedLiabilities	-2345000	USD
	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	-9727000	USD
	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	-17176000	USD
	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	1323000	USD
	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	6233000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-20264000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-4966000	USD
	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	32755000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	4665000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	2327000	USD
	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	2636000	USD
	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-7301000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-2327000	USD
	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	19400000	USD
	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	0	USD
	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	232663000	USD
	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	245590000	USD
	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	229847000	USD
	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	241539000	USD
	us-gaap	Proceeds From Other Short Term Debt ProceedsFromOtherShortTermDebt	10000000	USD
	us-gaap	Proceeds From Other Short Term Debt ProceedsFromOtherShortTermDebt	0	USD
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	0	USD
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	171000	USD
	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	539000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	3880000	USD
	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-62000	USD
	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-3000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	5128000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-3416000	USD
CY2020Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	12270000	USD
CY2019Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	16855000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	17398000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	13439000	USD
	us-gaap	Interest Paid Net InterestPaidNet	19992000	USD
	us-gaap	Interest Paid Net InterestPaidNet	15942000	USD
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-2464000	USD
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	155000	USD
	us-gaap	Contribution Of Property ContributionOfProperty	372000	USD
	us-gaap	Contribution Of Property ContributionOfProperty	253000	USD
	qtm	Litigation Settlement Paid With Insurance Proceeds LitigationSettlementPaidWithInsuranceProceeds	0	USD
	qtm	Litigation Settlement Paid With Insurance Proceeds LitigationSettlementPaidWithInsuranceProceeds	8950000	USD
CY2020Q1	us-gaap	Stockholders Equity StockholdersEquity	-198525000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-17997000	USD
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	11632000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	7542000	USD
CY2020Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	766000	USD
CY2019Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	897000	USD
CY2020Q4	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	5000000	USD
CY2019Q4	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	5000000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	17398000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	13439000	USD
CY2019Q3	us-gaap	Stockholders Equity StockholdersEquity	-203110000	USD
CY2019Q4	us-gaap	Net Income Loss NetIncomeLoss	4749000	USD
CY2019Q4	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	839000	USD
CY2019Q4	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	-1000	USD
CY2019Q4	qtm	Adjustments To Additional Paid In Capital Warrant Exercised Related To Debt AdjustmentsToAdditionalPaidInCapitalWarrantExercisedRelatedToDebt	0	USD
CY2019Q4	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	2056000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	-195467000	USD
CY2020Q3	us-gaap	Stockholders Equity StockholdersEquity	-196240000	USD
CY2020Q4	us-gaap	Net Income Loss NetIncomeLoss	-2669000	USD
CY2020Q4	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	975000	USD
CY2020Q4	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	0	USD
CY2020Q4	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	2080000	USD
CY2020Q4	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	1878000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	-193976000	USD
CY2019Q1	us-gaap	Stockholders Equity StockholdersEquity	-199780000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-1373000	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	449000	USD
	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	-171000	USD
	qtm	Adjustments To Additional Paid In Capital Warrant Exercised Related To Debt AdjustmentsToAdditionalPaidInCapitalWarrantExercisedRelatedToDebt	0	USD
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	5408000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	-195467000	USD
	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	1984000	USD
	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	539000	USD
	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	0	USD
	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	2080000	USD
	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	0	USD
	qtm	Adjustments To Additional Paid In Capital Warrant Exercised Related To Debt AdjustmentsToAdditionalPaidInCapitalWarrantExercisedRelatedToDebt	11515000	USD
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	6428000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	-193976000	USD
	us-gaap	Use Of Estimates UseOfEstimates	Use of EstimatesCompany management has made estimates and assumptions relating to the reporting of certain assets and liabilities in conformity with GAAP. These estimates and assumptions have been applied using methodologies that are consistent throughout the periods presented with consideration given to the potential impacts of COVID-19 pandemic. However, actual results could differ materially from these estimates and be significantly affected by the severity and duration of the pandemic, the extent of actions to contain or treat COVID-19, how quickly and to what extent normal economic and operating activity can resume, and the severity and duration of the global economic downturn that may result from the pandemic.
CY2020Q4	us-gaap	Proceeds From Issuance Or Sale Of Equity ProceedsFromIssuanceOrSaleOfEquity	200000000	USD
	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	1	segment
CY2020Q4	qtm	Operations In Geographic Regions OperationsInGeographicRegions	3	region
CY2020Q4	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	98023000	USD
CY2019Q4	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	103315000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	257149000	USD
CY2020Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	110007000	USD
	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	69355000	USD
CY2020Q4	qtm	Remaining Performance Obligation Current RemainingPerformanceObligationCurrent	89655000	USD
CY2020Q4	qtm	Remaining Performance Obligation Noncurrent RemainingPerformanceObligationNoncurrent	37169000	USD
CY2020Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	126824000	USD
CY2020Q4	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	15815000	USD
CY2020Q1	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	16294000	USD
CY2020Q4	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	2315000	USD
CY2020Q1	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	1001000	USD
CY2020Q4	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	15724000	USD
CY2020Q1	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	11901000	USD
CY2020Q4	qtm	Manufacturing Inventories Net ManufacturingInventoriesNet	33854000	USD
CY2020Q1	qtm	Manufacturing Inventories Net ManufacturingInventoriesNet	29196000	USD
CY2020Q4	qtm	Service Parts Inventories Finished Goods ServicePartsInventoriesFinishedGoods	17707000	USD
CY2020Q1	qtm	Service Parts Inventories Finished Goods ServicePartsInventoriesFinishedGoods	15845000	USD
CY2020Q4	qtm	Service Parts Inventories Component Parts ServicePartsInventoriesComponentParts	5291000	USD
CY2020Q1	qtm	Service Parts Inventories Component Parts ServicePartsInventoriesComponentParts	4657000	USD
CY2020Q4	qtm	Service Parts Inventories ServicePartsInventories	22998000	USD
CY2020Q1	qtm	Service Parts Inventories ServicePartsInventories	20502000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Remainder Of Fiscal Year FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear	465000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	1867000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	1867000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	1304000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	0	USD
CY2020Q4	qtm	Finite Lived Intangible Asset Expected Amortization After Year Four FiniteLivedIntangibleAssetExpectedAmortizationAfterYearFour	0	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	5503000	USD
CY2020Q4	us-gaap	Debt Instrument Unamortized Discount Premium And Debt Issuance Costs Net DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet	1850000	USD
CY2020Q1	us-gaap	Debt Instrument Unamortized Discount Premium And Debt Issuance Costs Net DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet	7321000	USD
CY2020Q4	us-gaap	Deferred Finance Costs Current Net DeferredFinanceCostsCurrentNet	21042000	USD
CY2020Q1	us-gaap	Deferred Finance Costs Current Net DeferredFinanceCostsCurrentNet	13660000	USD
CY2020Q4	us-gaap	Long Term Debt LongTermDebt	178276000	USD
CY2020Q1	us-gaap	Long Term Debt LongTermDebt	146847000	USD
CY2020Q4	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	5000000.0	USD
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	10096000	USD
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	10096000	USD
CY2020Q1	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	12689000	USD
CY2020Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	2806000	USD
CY2020Q1	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	3065000	USD
CY2020Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	8500000	USD
CY2020Q1	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	10822000	USD
CY2020Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	11306000	USD
CY2020Q1	us-gaap	Operating Lease Liability OperatingLeaseLiability	13887000	USD
CY2020Q4	us-gaap	Operating Lease Cost OperatingLeaseCost	1018000	USD
CY2019Q4	us-gaap	Operating Lease Cost OperatingLeaseCost	1259000	USD
	us-gaap	Operating Lease Cost OperatingLeaseCost	3688000	USD
	us-gaap	Operating Lease Cost OperatingLeaseCost	3835000	USD
CY2020Q4	us-gaap	Variable Lease Cost VariableLeaseCost	198000	USD
CY2019Q4	us-gaap	Variable Lease Cost VariableLeaseCost	109000	USD
	us-gaap	Variable Lease Cost VariableLeaseCost	620000	USD
	us-gaap	Variable Lease Cost VariableLeaseCost	321000	USD
CY2020Q4	us-gaap	Short Term Lease Cost ShortTermLeaseCost	37000	USD
CY2019Q4	us-gaap	Short Term Lease Cost ShortTermLeaseCost	58000	USD
	us-gaap	Short Term Lease Cost ShortTermLeaseCost	129000	USD
	us-gaap	Short Term Lease Cost ShortTermLeaseCost	89000	USD
CY2020Q4	us-gaap	Lease Cost LeaseCost	1253000	USD
	us-gaap	Operating Lease Payments OperatingLeasePayments	4400000	USD
	us-gaap	Lease Cost LeaseCost	4437000	USD
CY2019Q4	us-gaap	Lease Cost LeaseCost	1426000	USD
	us-gaap	Lease Cost LeaseCost	4245000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Remainder Of Fiscal Year LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear	1051000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	3863000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	2799000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	2630000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	2330000	USD
CY2020Q4	qtm	Lessee Operating Lease Liability Payments Due After Year Four LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour	2948000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	15621000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	4315000	USD
CY2020Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	11306000	USD
CY2020Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P4Y7M28D
CY2020Q1	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P4Y11M26D
CY2020Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.1397
CY2020Q1	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.1391
	us-gaap	Operating Lease Payments OperatingLeasePayments	3400000	USD
CY2020Q1	us-gaap	Restructuring Reserve RestructuringReserve	0	USD
	us-gaap	Restructuring Charges RestructuringCharges	2837000	USD
	us-gaap	Payments For Restructuring PaymentsForRestructuring	2627000	USD
CY2020Q4	us-gaap	Restructuring Reserve RestructuringReserve	210000	USD
CY2019Q1	us-gaap	Restructuring Reserve RestructuringReserve	2876000	USD
	qtm	Restructuring Charges Excluding Adjustments RestructuringChargesExcludingAdjustments	0	USD
	qtm	Restructuring Adjustments RestructuringAdjustments	1020000	USD
	us-gaap	Payments For Restructuring PaymentsForRestructuring	3659000	USD
	qtm	Restructuring Reserve Other Non Cash Increase RestructuringReserveOtherNonCashIncrease	63000	USD
CY2019Q4	us-gaap	Restructuring Reserve RestructuringReserve	300000	USD
CY2020Q4	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	8311000	shares
CY2019Q4	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0	shares
	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	7557000	shares
	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	7385000	shares
CY2020Q4	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	-0.106
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	-0.051
CY2019Q4	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	-0.027
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	-0.522
CY2020Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	110400000	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	92100000	USD
CY2020Q4	us-gaap	Income Tax Examination Penalties And Interest Accrued IncomeTaxExaminationPenaltiesAndInterestAccrued	1300000	USD
CY2020Q4	us-gaap	Increase In Unrecognized Tax Benefits Is Reasonably Possible IncreaseInUnrecognizedTaxBenefitsIsReasonablyPossible	9200000	USD
CY2020Q4	us-gaap	Purchase Commitment Remaining Minimum Amount Committed PurchaseCommitmentRemainingMinimumAmountCommitted	18900000	USD

Files In Submission

Name	View Source	Status
0000709283-21-000002-index-headers.html	Edgar Link	pending
0000709283-21-000002-index.html	Edgar Link	pending
0000709283-21-000002.txt	Edgar Link	pending
0000709283-21-000002-xbrl.zip	Edgar Link	pending
a1041_severancedocsxdonmar.htm	Edgar Link	pending
a1051_severancedocsxdonmar.htm	Edgar Link	pending
exhibit311q321.htm	Edgar Link	pending
exhibit312q321.htm	Edgar Link	pending
exhibit321q321.htm	Edgar Link	pending
exhibit322q321.htm	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
image_01a.jpg	Edgar Link	pending
image_02.jpg	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
qtm-20201231.htm	Edgar Link	pending
qtm-20201231.xsd	Edgar Link	pending
qtm-20201231_cal.xml	Edgar Link	unprocessable
qtm-20201231_def.xml	Edgar Link	unprocessable
qtm-20201231_g1.jpg	Edgar Link	pending
qtm-20201231_htm.xml	Edgar Link	completed
qtm-20201231_lab.xml	Edgar Link	unprocessable
qtm-20201231_pre.xml	Edgar Link	unprocessable
R1.htm	Edgar Link	pending
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report.css	Edgar Link	pending
Show.js	Edgar Link	pending

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$QMCO
QUANTUM CORP /DE/ Stock $qmco

2021 Q1 Form 10-Q Financial Statement

#000070928321000002 Filed on January 27, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$QMCO QUANTUM CORP /DE/ Stock $qmco

2021 Q1 Form 10-Q Financial Statement

#000070928321000002 Filed on January 27, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$QMCO
QUANTUM CORP /DE/ Stock $qmco