$EGHT
8x8 Inc Stock $eght

$eght Overview Financials Valuation SEC Filings Company Website

2020 Form 10-K Financial Statement

#000102373120000049 Filed on May 19, 2020

Income Statement

Concept	2020	2019 Q1	2019
Revenue	$446.2M	$93.77M	$352.6M
YoY Change	26.56%	18.18%	18.92%
Cost Of Revenue	$201.2M	$65.00M	$130.0M
YoY Change	54.77%	228.28%	82.58%
Gross Profit	$245.0M	$59.17M	$222.6M
YoY Change	10.06%	19.1%	-1.2%
Gross Profit Margin	54.9%	63.11%	63.13%
Selling, General & Admin	$327.0M	$69.89M	$250.2M
YoY Change	30.72%	31.9%	34.66%
% of Gross Profit	133.48%	118.11%	112.39%
Research & Development	$77.79M	$18.06M	$62.06M
YoY Change	25.34%	73.24%	70.48%
% of Gross Profit	31.75%	30.53%	27.88%
Depreciation & Amortization	$28.40M	$7.210M	$18.50M
YoY Change	53.51%	63.86%	72.9%
% of Gross Profit	11.59%	12.18%	8.31%
Operating Expenses	$606.1M	$87.95M	$442.2M
YoY Change	37.05%	38.7%	30.68%
Operating Profit	-$159.8M	-$27.43M	-$89.63M
YoY Change	78.3%	99.75%	113.94%
Interest Expense	-$15.60M		-$1.500M
YoY Change	940.0%
% of Operating Profit
Other Income/Expense, Net	-$11.72M	-$500.0K	$1.463M
YoY Change	-900.89%	-183.33%	-60.38%
Pretax Income	-$171.5M	-$27.90M	-$88.17M
YoY Change	94.55%	112.98%	130.79%
Income Tax	$832.0K	$200.0K	$569.0K
% Of Pretax Income
Net Earnings	-$172.4M	-$28.13M	-$88.74M
YoY Change	94.24%	112.12%	-15.08%
Net Earnings / Revenue	-38.63%	-30.0%	-25.17%
Basic Earnings Per Share	-$1.72
Diluted Earnings Per Share	-$1.72	-$293.0K	-$938.6K
COMMON SHARES
Basic Shares Outstanding	100.0M shares	95.65M shares
Diluted Shares Outstanding	100.0M shares

Balance Sheet

Concept	2020	2019 Q1	2019
SHORT-TERM ASSETS
Cash & Short-Term Investments	$170.9M	$346.5M	$346.5M
YoY Change	-50.68%	127.51%	127.51%
Cash & Equivalents	$116.4M	$276.6M	$251.2M
Short-Term Investments	$33.50M	$69.90M	$69.90M
Other Short-Term Assets	$58.10M	$15.13M	$25.00M
YoY Change	132.4%	50.67%	150.0%
Inventory
Prepaid Expenses		$7.891M
Receivables	$48.20M	$20.18M	$25.90M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$277.2M	$397.4M	$397.4M
YoY Change	-30.25%	122.51%	122.51%
LONG-TERM ASSETS
Property, Plant & Equipment	$173.3M	$52.84M	$52.80M
YoY Change	228.22%	47.86%	47.9%
Goodwill		$39.69M
YoY Change		-0.9%
Intangibles		$11.68M
YoY Change		-2.32%
Long-Term Investments	$16.10M
YoY Change
Other Assets	$81.80M	$2.965M	$44.80M
YoY Change	82.59%	7.16%	311.01%
Total Long-Term Assets	$423.4M	$149.0M	$149.0M
YoY Change	184.16%	51.07%	51.12%
TOTAL ASSETS
Total Short-Term Assets	$277.2M	$397.4M	$397.4M
Total Long-Term Assets	$423.4M	$149.0M	$149.0M
Total Assets	$700.6M	$546.4M	$546.4M
YoY Change	28.22%	97.09%	97.11%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$40.30M	$32.28M	$32.30M
YoY Change	24.77%	35.07%	35.15%
Accrued Expenses	$65.80M	$25.20M	$25.20M
YoY Change	161.11%	7.69%	7.69%
Deferred Revenue		$3.336M
YoY Change		30.36%
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$0.00		$0.00
YoY Change
Total Short-Term Liabilities	$123.4M	$74.71M	$74.70M
YoY Change	65.19%	32.78%	32.68%
LONG-TERM LIABILITIES
Long-Term Debt	$291.5M	$216.0M	$216.0M
YoY Change	34.95%
Other Long-Term Liabilities	$94.90M	$6.228M	$6.200M
YoY Change	1430.65%	189.27%	181.82%
Total Long-Term Liabilities	$386.4M	$222.3M	$222.2M
YoY Change	73.9%	10223.41%	10000.0%
TOTAL LIABILITIES
Total Short-Term Liabilities	$123.4M	$74.71M	$74.70M
Total Long-Term Liabilities	$386.4M	$222.3M	$222.2M
Total Liabilities	$509.9M	$297.0M	$297.0M
YoY Change	71.68%	408.2%	408.56%
SHAREHOLDERS EQUITY
Retained Earnings		-$250.3M
YoY Change		24.24%
Common Stock		$96.00K
YoY Change		3.23%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$190.7M	$249.4M	$249.4M
YoY Change
Total Liabilities & Shareholders Equity	$700.6M	$546.4M	$546.4M
YoY Change	28.22%	97.09%	97.11%

Cashflow Statement

Concept	2020	2019 Q1	2019
OPERATING ACTIVITIES
Net Income	-$172.4M	-$28.13M	-$88.74M
YoY Change	94.24%	112.12%	-15.08%
Depreciation, Depletion And Amortization	$28.40M	$7.210M	$18.50M
YoY Change	53.51%	63.86%	72.9%
Cash From Operating Activities	-$93.91M	-$8.200M	-$14.87M
YoY Change	531.59%	-408.27%	-167.46%
INVESTING ACTIVITIES
Capital Expenditures	$35.83M	-$10.73M	$9.096M
YoY Change	293.95%	66.36%	-0.89%
Acquisitions	$59.13M		$5.625M
YoY Change	951.18%
Other Investing Activities	-$38.89M	$16.94M	$45.59M
YoY Change	-185.3%	101.91%	216.82%
Cash From Investing Activities	-$106.3M	$6.210M	$10.87M
YoY Change	-1077.69%	220.1%	-249.5%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net	$0.00		$7.823M
YoY Change	-100.0%		-65.14%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	$72.10M	250.3M	$249.2M
YoY Change	-71.07%	7260.88%	-1616.05%
NET CHANGE
Cash From Operating Activities	-$93.91M	-8.200M	-$14.87M
Cash From Investing Activities	-$106.3M	6.210M	$10.87M
Cash From Financing Activities	$72.10M	250.3M	$249.2M
Net Change In Cash	-$128.3M	248.3M	$244.9M
YoY Change	-152.38%	3003.5%	-20057.62%
FREE CASH FLOW
Cash From Operating Activities	-$93.91M	-$8.200M	-$14.87M
Capital Expenditures	$35.83M	-$10.73M	$9.096M
Free Cash Flow	-$129.7M	$2.530M	-$23.96M
YoY Change	441.39%	-72.23%	-286.3%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
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CY2020	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2020
CY2020	dei	Entity Central Index Key EntityCentralIndexKey	0001023731
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CY2020Q1	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	200000000	shares
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CY2020	dei	Document Type DocumentType	10-K
CY2020	dei	Document Annual Report DocumentAnnualReport	true
CY2020	dei	Document Period End Date DocumentPeriodEndDate	2020-03-31
CY2020	dei	Document Transition Report DocumentTransitionReport	false
CY2020	dei	Entity File Number EntityFileNumber	000-21783
CY2020	dei	Entity Registrant Name EntityRegistrantName	8x8, Inc.
CY2020	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2020	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	77-0142404
CY2020	dei	Entity Address Address Line1 EntityAddressAddressLine1	675 Creekside Way
CY2020	dei	Entity Address City Or Town EntityAddressCityOrTown	Campbell
CY2020	dei	Entity Address State Or Province EntityAddressStateOrProvince	CA
CY2020	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	95008
CY2020	dei	City Area Code CityAreaCode	408
CY2020	dei	Local Phone Number LocalPhoneNumber	727-1885
CY2020	dei	Security12b Title Security12bTitle	COMMON STOCK, PAR VALUE $.001 PER SHARE
CY2020	dei	Trading Symbol TradingSymbol	EGHT
CY2020	dei	Security Exchange Name SecurityExchangeName	NYSE
CY2020	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2020	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
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CY2020	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
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CY2018	us-gaap	Net Income Loss NetIncomeLoss	-104497000	USD
CY2018Q1	us-gaap	Stockholders Equity StockholdersEquity	218774000	USD
CY2018Q2	us-gaap	Cumulative Effect Of New Accounting Principle In Period Of Adoption CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	39901000	USD
CY2019	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	4486000	USD
CY2019	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	45548000	USD
CY2019	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent	473000	USD
CY2019	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax	-2181000	USD
CY2019	us-gaap	Adjustments To Additional Paid In Capital Equity Component Of Convertible Debt AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt	31128000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	-88739000	USD
CY2019Q1	us-gaap	Stockholders Equity StockholdersEquity	249390000	USD
CY2020	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	7777000	USD
CY2020	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	35840000	USD
CY2020	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	71821000	USD
CY2020	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent	-203000	USD
CY2018	us-gaap	Depreciation Depreciation	8171000	USD
CY2020	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	3479000	USD
CY2020	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax	-4620000	USD
CY2020	us-gaap	Adjustments To Additional Paid In Capital Equity Component Of Convertible Debt AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt	3094000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-172368000	USD
CY2020Q1	us-gaap	Stockholders Equity StockholdersEquity	190731000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-172368000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	-88739000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	-104497000	USD
CY2020	us-gaap	Depreciation Depreciation	9360000	USD
CY2019	us-gaap	Depreciation Depreciation	8748000	USD
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	8842000	USD
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	6175000	USD
CY2018	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	5033000	USD
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
CY2018	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	9469000	USD
CY2020	us-gaap	Other Depreciation And Amortization OtherDepreciationAndAmortization	19025000	USD
CY2019	us-gaap	Other Depreciation And Amortization OtherDepreciationAndAmortization	9748000	USD
CY2018	us-gaap	Other Depreciation And Amortization OtherDepreciationAndAmortization	2513000	USD
CY2020	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	14045000	USD
CY2019	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	1355000	USD
CY2018	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	0	USD
CY2020	us-gaap	Amortization Of Deferred Sales Commissions AmortizationOfDeferredSalesCommissions	19541000	USD
CY2019	us-gaap	Amortization Of Deferred Sales Commissions AmortizationOfDeferredSalesCommissions	14204000	USD
CY2018	us-gaap	Amortization Of Deferred Sales Commissions AmortizationOfDeferredSalesCommissions	0	USD
CY2019	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	1115000	USD
CY2018	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	839000	USD
CY2020	eght	Operating Lease Expense Net Of Accretion OperatingLeaseExpenseNetOfAccretion	14971000	USD
CY2020	eght	Lease Non Cash Lease Expense LeaseNonCashLeaseExpense	0	USD
CY2019	eght	Lease Non Cash Lease Expense LeaseNonCashLeaseExpense	4802000	USD
CY2018	eght	Lease Non Cash Lease Expense LeaseNonCashLeaseExpense	0	USD
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	70878000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	44508000	USD
CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	29176000	USD
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	0	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	0	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	66273000	USD
CY2020	eght	Gain On Escrow Settlement GainOnEscrowSettlement	0	USD
CY2019	eght	Gain On Escrow Settlement GainOnEscrowSettlement	0	USD
CY2018	eght	Gain On Escrow Settlement GainOnEscrowSettlement	1393000	USD
CY2019	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	0	USD
CY2018	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-253000	USD
CY2020	eght	Deferred Income Tax Expense Benefit1 DeferredIncomeTaxExpenseBenefit1	0	USD
CY2019	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	178000	USD
CY2018	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	-162000	USD
CY2020	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	3522000	USD
CY2020	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	12737000	USD
CY2019	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	802000	USD
CY2019	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	5393000	USD
CY2018	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	2402000	USD
CY2018	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	310000	USD
CY2020	us-gaap	Increase Decrease In Deferred Charges IncreaseDecreaseInDeferredCharges	46421000	USD
CY2019	us-gaap	Increase Decrease In Deferred Charges IncreaseDecreaseInDeferredCharges	25286000	USD
CY2018	us-gaap	Increase Decrease In Deferred Charges IncreaseDecreaseInDeferredCharges	0	USD
CY2020	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	33137000	USD
CY2019	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	4337000	USD
CY2018	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	3149000	USD
CY2020	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	2159000	USD
CY2019	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	17252000	USD
CY2018	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	11860000	USD
CY2020	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	4936000	USD
CY2020	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	42223000	USD
CY2019	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	54127000	USD
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-93905000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-14868000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	22041000	USD
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	35834000	USD
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	9096000	USD
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	9178000	USD
CY2020	us-gaap	Payments For Software PaymentsForSoftware	31573000	USD
CY2019	us-gaap	Payments For Software PaymentsForSoftware	25622000	USD
CY2018	us-gaap	Payments For Software PaymentsForSoftware	12486000	USD
CY2020	us-gaap	Proceeds From Collection Of Other Receivables ProceedsFromCollectionOfOtherReceivables	0	USD
CY2019	us-gaap	Proceeds From Collection Of Other Receivables ProceedsFromCollectionOfOtherReceivables	0	USD
CY2018	us-gaap	Proceeds From Collection Of Other Receivables ProceedsFromCollectionOfOtherReceivables	1393000	USD
CY2018	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	115224000	USD
CY2020	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	36515000	USD
CY2019	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	54642000	USD
CY2018	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	27841000	USD
CY2020	us-gaap	Proceeds From Sale Maturity And Collection Of Shortterm Investments ProceedsFromSaleMaturityAndCollectionOfShorttermInvestments	25950000	USD
CY2019	us-gaap	Proceeds From Sale Maturity And Collection Of Shortterm Investments ProceedsFromSaleMaturityAndCollectionOfShorttermInvestments	50700000	USD
CY2018	us-gaap	Proceeds From Sale Maturity And Collection Of Shortterm Investments ProceedsFromSaleMaturityAndCollectionOfShorttermInvestments	100382000	USD
CY2020	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	59129000	USD
CY2019	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	5625000	USD
CY2018	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	USD
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-106294000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	10872000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-7272000	USD
CY2020	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	315000	USD
CY2019	us-gaap	Repayments Of Long Term Capital Lease Obligations RepaymentsOfLongTermCapitalLeaseObligations	949000	USD
CY2018	us-gaap	Repayments Of Long Term Capital Lease Obligations RepaymentsOfLongTermCapitalLeaseObligations	1079000	USD
CY2020	us-gaap	Repayments Of Other Debt RepaymentsOfOtherDebt	0	USD
CY2019	us-gaap	Repayments Of Other Debt RepaymentsOfOtherDebt	0	USD
CY2018	us-gaap	Repayments Of Other Debt RepaymentsOfOtherDebt	150000	USD
CY2020	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	6550000	USD
CY2019	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	7823000	USD
CY2018	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	22440000	USD
CY2020	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	14330000	USD
CY2019	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	12202000	USD
CY2018	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	7229000	USD
CY2020	eght	Payments For Capped Call PaymentsForCappedCall	9288000	USD
CY2019	eght	Payments For Capped Call PaymentsForCappedCall	33724000	USD
CY2018	eght	Payments For Capped Call PaymentsForCappedCall	0	USD
CY2020	us-gaap	Proceeds From Convertible Debt ProceedsFromConvertibleDebt	73918000	USD
CY2019	us-gaap	Proceeds From Convertible Debt ProceedsFromConvertibleDebt	279532000	USD
CY2018	us-gaap	Proceeds From Convertible Debt ProceedsFromConvertibleDebt	0	USD
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	72095000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	249238000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-16440000	USD
CY2020	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-168000	USD
CY2019	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-362000	USD
CY2018	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	444000	USD
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-128272000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	244880000	USD
CY2018	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-1227000	USD
CY2019Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	284683000	USD
CY2018Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	39803000	USD
CY2017Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	41030000	USD
CY2020Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	156411000	USD
CY2019Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	284683000	USD
CY2018Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	39803000	USD
CY2020	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	79100000	USD
CY2020	us-gaap	Interest Paid Net InterestPaidNet	1553000	USD
CY2019	us-gaap	Interest Paid Net InterestPaidNet	0	USD
CY2018	us-gaap	Interest Paid Net InterestPaidNet	36000	USD
CY2020	us-gaap	Income Taxes Paid IncomeTaxesPaid	934000	USD
CY2019	us-gaap	Income Taxes Paid IncomeTaxesPaid	356000	USD
CY2018	us-gaap	Income Taxes Paid IncomeTaxesPaid	38000	USD
CY2020	us-gaap	Capital Lease Obligations Incurred CapitalLeaseObligationsIncurred	0	USD
CY2019	us-gaap	Capital Lease Obligations Incurred CapitalLeaseObligationsIncurred	68000	USD
CY2018	us-gaap	Capital Lease Obligations Incurred CapitalLeaseObligationsIncurred	765000	USD
CY2020Q1	us-gaap	Restricted Cash Current RestrictedCashCurrent	10376000	USD
CY2019Q1	us-gaap	Restricted Cash Current RestrictedCashCurrent	0	USD
CY2019Q1	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	276583000	USD
CY2018Q1	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	31703000	USD
CY2020Q1	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	137394000	USD
CY2018Q1	us-gaap	Restricted Cash Current RestrictedCashCurrent	0	USD
CY2020Q1	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	8641000	USD
CY2019Q1	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	8100000	USD
CY2018Q1	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	8100000	USD
CY2020Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	156411000	USD
CY2019Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	284683000	USD
CY2018Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	39803000	USD
CY2020	us-gaap	Fiscal Period FiscalPeriod	<div style="line-height:120%;padding-bottom:10px;padding-top:10px;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;">The Company's fiscal year ends on </span><span style="font-family:Arial;font-size:9pt;text-align:left;">March 31</span><span style="font-family:Arial;font-size:9pt;"> of each calendar year. Each reference to a fiscal year in these Notes to Consolidated Financial Statements refers to the fiscal year ended </span><span style="font-family:Arial;font-size:9pt;">March 31</span><span style="font-family:Arial;font-size:9pt;"> of the calendar year indicated (for example, fiscal 2020 refers to the fiscal year ended </span><span style="font-family:Arial;font-size:9pt;">March 31, 2020</span><span style="font-family:Arial;font-size:9pt;">).</span></div>
CY2020	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	<div style="line-height:120%;padding-bottom:10px;text-align:left;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;">During the fourth quarter of fiscal 2020, the Company determined that presenting service revenue as revenue from the Company's core subscription services would provide transparency and clarity to the users of the financial statements. As such, the Company reclassified certain revenue and cost of revenue on its consolidated statement of operations for the full year fiscal 2020, and the comparative fiscal years 2019 and 2018. The reclassifications did not have any impact on total revenue, consolidated net loss, or cash flows for any of the fiscal years presented. Professional services revenue and cost of professional services revenue previously reported in service revenue and cost of service revenue are now reported in other revenue and cost of other revenue. Product revenue and cost of product revenue are also now reported in other revenue and cost of other revenue. In addition, other immaterial expense reclassifications were made to our fiscal 2019 consolidated statement of operations to improve comparability; these reclassifications do not affect consolidated net loss, or cash flows for any of the fiscal years presented.</span></div><div style="line-height:120%;padding-bottom:10px;padding-top:10px;text-align:left;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;">During the fourth quarter of fiscal 2019, the Company reclassified certain expenses on its Consolidated Statement of Operations to provide additional clarity and insights in light of strategic and organizational changes impacting its channel, marketing and support activities. The reclassifications were made to cost of revenue, sales and marketing expenses, research and development expenses, and general and administrative expenses for the full year fiscal 2019 and the comparative fiscal year 2018. These reclassifications did not have any impact on total revenue, consolidated net loss, or cash flows for any of the fiscal years presented.</span></div>
CY2020	us-gaap	Use Of Estimates UseOfEstimates	<div style="line-height:120%;padding-bottom:10px;padding-top:10px;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;">The preparation of the consolidated financial statements in conformity with U.S. generally accepted accounting principles generally ("U.S. GAAP") requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities and equity and disclosure of contingent assets and liabilities at the date of the consolidated financial statements, and </span></div><div style="line-height:120%;padding-bottom:10px;padding-top:10px;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;">the reported amounts of revenues and expenses during the reporting period. On an ongoing basis, the Company evaluates its estimates, including, but not limited to, those related to bad debts, returns reserve for expected cancellations, fair value of and/or potential impairment of goodwill and intangible assets, capitalization of internally developed software, benefit period for deferred commissions, stock-based compensation, incremental borrowing rate used to calculate operating lease liabilities, income and sales tax liabilities, convertible senior notes fair value, litigation, and other contingencies. The Company bases its estimates on known facts and circumstances, historical experience, and various other assumptions. Actual results could differ from those estimates under different assumptions or conditions.</span></div>
CY2020Q1	us-gaap	Capitalized Contract Cost Amortization Period CapitalizedContractCostAmortizationPeriod	P5Y
CY2019	us-gaap	Number Of Reporting Units NumberOfReportingUnits	3	reporting_unit
CY2020	us-gaap	Number Of Reporting Units NumberOfReportingUnits	1	reporting_unit
CY2020	us-gaap	Advertising Expense AdvertisingExpense	32200000	USD
CY2019	us-gaap	Advertising Expense AdvertisingExpense	25000000.0	USD
CY2018	us-gaap	Advertising Expense AdvertisingExpense	14500000	USD
CY2020	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<div style="line-height:120%;padding-bottom:10px;padding-top:10px;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;">Financial instruments that potentially subject the Company to significant concentrations of credit risk consist principally of cash and cash equivalents, investments and trade accounts receivable. The Company has cash equivalents and investment policies that limit the amount of credit exposure to any one financial institution and restrict placement of these funds to financial institutions evaluated as highly credit-worthy. The Company has not experienced any material losses relating to its investments.</span></div><div style="line-height:120%;padding-bottom:10px;padding-top:10px;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;">The Company sells its products to customers and distributors. The Company performs credit evaluations of its customers' financial condition and generally does not require collateral from its customers. As of and for the fiscal years ending </span><span style="font-family:Arial;font-size:9pt;">March 31, 2020</span><span style="font-family:Arial;font-size:9pt;"> and </span><span style="font-family:Arial;font-size:9pt;">2019</span><span style="font-family:Arial;font-size:9pt;">, no customer accounted for more than </span><span style="font-family:Arial;font-size:9pt;">10%</span><span style="font-family:Arial;font-size:9pt;"> of accounts receivable or revenues.</span></div><div style="line-height:120%;padding-bottom:10px;padding-top:10px;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;">The Company purchases all of its hardware products from suppliers that manufacture the hardware directly, and from their distributors. The inability of any supplier to fulfill supply requirements of the Company could materially impact future operating results, financial position or cash flows.</span></div><div style="line-height:120%;padding-bottom:10px;padding-top:10px;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;">The Company also relies primarily on third-party network service providers to provide telephone numbers and PSTN call termination and origination services for its customers. If these service providers failed to perform their obligations to the Company, such failure could materially impact future operating results, financial position and cash flows.</span></div>
CY2020	us-gaap	Increase Decrease In Contract With Customer Asset IncreaseDecreaseInContractWithCustomerAsset	18406000	USD
CY2020Q1	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	37811000	USD
CY2019Q1	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	20181000	USD
CY2020Q1	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	10425000	USD
CY2019Q1	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	5717000	USD
CY2020Q1	us-gaap	Contract With Customer Asset Net Noncurrent ContractWithCustomerAssetNetNoncurrent	13698000	USD
CY2019Q1	us-gaap	Contract With Customer Asset Net Noncurrent ContractWithCustomerAssetNetNoncurrent	0	USD
CY2020Q1	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	7105000	USD
CY2019Q1	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	3336000	USD
CY2020Q1	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	1119000	USD
CY2019Q1	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	6000	USD
CY2020Q1	eght	Contract With Customer Asset ContractWithCustomerAsset	24123000	USD
CY2019Q1	eght	Contract With Customer Asset ContractWithCustomerAsset	5717000	USD
CY2020Q1	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	8224000	USD
CY2019Q1	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	3342000	USD
CY2020	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	4882000	USD
CY2020	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	3000000.0	USD
CY2020Q1	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	270000000.0	USD
CY2020Q1	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P36M
CY2020Q1	eght	Cash Cash Equivalentsand Debt Securities Availableforsale Amortized Cost CashCashEquivalentsandDebtSecuritiesAvailableforsaleAmortizedCost	187122000	USD
CY2020Q1	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	154000	USD
CY2020Q1	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	341000	USD
CY2020Q1	eght	Cash Cash Equivalentsand Debt Securities Availableforsale CashCashEquivalentsandDebtSecuritiesAvailableforsale	186935000	USD
CY2019Q1	eght	Cash Cash Equivalentsand Debt Securities Availableforsale Amortized Cost CashCashEquivalentsandDebtSecuritiesAvailableforsaleAmortizedCost	346466000	USD
CY2019Q1	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	77000	USD
CY2019Q1	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	61000	USD
CY2019Q1	eght	Cash Cash Equivalentsand Debt Securities Availableforsale CashCashEquivalentsandDebtSecuritiesAvailableforsale	346482000	USD
CY2020Q1	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	168352000	USD
CY2019Q1	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	102231000	USD
CY2020Q1	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	73970000	USD
CY2019Q1	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	49396000	USD
CY2020Q1	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	94382000	USD
CY2019Q1	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	52835000	USD
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	28400000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	18500000	USD
CY2018	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	10700000	USD
CY2019Q1	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	6790000	USD
CY2020Q1	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	14489000	USD
CY2019Q1	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	7891000	USD
CY2020Q1	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	10425000	USD
CY2019Q1	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	5717000	USD
CY2020Q1	eght	Lease Assignment Receivable LeaseAssignmentReceivable	6853000	USD
CY2019Q1	eght	Lease Assignment Receivable LeaseAssignmentReceivable	0	USD
CY2020Q1	us-gaap	Other Assets Miscellaneous Current OtherAssetsMiscellaneousCurrent	3912000	USD
CY2019Q1	us-gaap	Other Assets Miscellaneous Current OtherAssetsMiscellaneousCurrent	1519000	USD
CY2020Q1	us-gaap	Other Assets Current OtherAssetsCurrent	35679000	USD
CY2019Q1	us-gaap	Other Assets Current OtherAssetsCurrent	15127000	USD
CY2020Q1	eght	Lease Assignment Lease Liability LeaseAssignmentLeaseLiability	8969000	USD
CY2019Q1	eght	Lease Assignment Lease Liability LeaseAssignmentLeaseLiability	0	USD
CY2020Q1	eght	Acquisition Related Holdback Cash And Shares AcquisitionRelatedHoldbackCashAndShares	18864000	USD
CY2019Q1	eght	Acquisition Related Holdback Cash And Shares AcquisitionRelatedHoldbackCashAndShares	0	USD
CY2020Q1	us-gaap	Other Sundry Liabilities Current OtherSundryLiabilitiesCurrent	9444000	USD
CY2019Q1	us-gaap	Other Sundry Liabilities Current OtherSundryLiabilitiesCurrent	6790000	USD
CY2020Q1	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	37277000	USD
CY2020Q1	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	0	USD
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	6200000	USD
CY2018	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	5000000.0	USD
CY2020Q1	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	46324000	USD
CY2020Q1	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	22323000	USD
CY2020Q1	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	24001000	USD
CY2019Q1	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	37372000	USD
CY2019Q1	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	25692000	USD
CY2019Q1	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	11680000	USD
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	8800000	USD
CY2020	eght	Intangible Assets Fully Amortized Written Off IntangibleAssetsFullyAmortizedWrittenOff	11300000	USD
CY2020Q1	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	6871000	USD
CY2020Q1	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	4708000	USD
CY2020Q1	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	3156000	USD
CY2020Q1	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	2851000	USD
CY2020Q1	eght	Finite Lived Intangible Assets Amortization Expense Year Five And Thereafter FiniteLivedIntangibleAssetsAmortizationExpenseYearFiveAndThereafter	6415000	USD
CY2020Q1	us-gaap	Other Intangible Assets Net OtherIntangibleAssetsNet	24001000	USD
CY2018Q1	us-gaap	Goodwill Goodwill	40054000	USD
CY2019	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	500000	USD
CY2019	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	-860000	USD
CY2020	us-gaap	Capitalized Contract Cost Amortization CapitalizedContractCostAmortization	19500000	USD
CY2019	us-gaap	Capitalized Contract Cost Amortization CapitalizedContractCostAmortization	14200000	USD
CY2019Q1	us-gaap	Goodwill Goodwill	39694000	USD
CY2020	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	91060000	USD
CY2020	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	-2454000	USD
CY2020Q1	us-gaap	Goodwill Goodwill	128300000	USD
CY2020	us-gaap	Capitalized Contract Cost Impairment Loss CapitalizedContractCostImpairmentLoss	0	USD
CY2020Q1	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	78963000	USD
CY2020Q1	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	5875000	USD
CY2020Q1	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	92452000	USD
CY2020Q1	us-gaap	Operating Lease Liability OperatingLeaseLiability	98327000	USD
CY2020	us-gaap	Operating Lease Cost OperatingLeaseCost	15000000.0	USD
CY2020	us-gaap	Variable Lease Cost VariableLeaseCost	1600000	USD
CY2020Q1	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P8Y10M24D
CY2020Q1	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.040
CY2020	us-gaap	Operating Lease Payments OperatingLeasePayments	9856000	USD
CY2020Q1	us-gaap	Lessee Operating Lease Liability Payments Due Next Rolling Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextRollingTwelveMonths	9765000	USD
CY2020Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	16270000	USD
CY2020Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	15237000	USD
CY2020Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	11722000	USD
CY2020Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	11386000	USD
CY2018Q1	us-gaap	Lessee Operating Lease Term Of Contract LesseeOperatingLeaseTermOfContract	P132M
CY2020Q1	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	58078000	USD
CY2020Q1	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	122458000	USD
CY2018Q1	us-gaap	Area Of Real Estate Property AreaOfRealEstateProperty	162000	sqft
CY2019	eght	Deferred Income Tax Expense Benefit1 DeferredIncomeTaxExpenseBenefit1	0	USD
CY2019Q3	eght	Increase Decrease In Operating Lease Right Of Use Asset IncreaseDecreaseInOperatingLeaseRightOfUseAsset	56800000	USD
CY2019Q3	eght	Increase Decrease In Operating Lease Liability IncreaseDecreaseInOperatingLeaseLiability	56100000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	832000	USD
CY2020Q1	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	21522000	USD
CY2020Q1	us-gaap	Lease Incentive Receivable LeaseIncentiveReceivable	2609000	USD
CY2020Q1	us-gaap	Operating Lease Liability OperatingLeaseLiability	98327000	USD
CY2019Q3	us-gaap	Area Of Real Estate Property AreaOfRealEstateProperty	177815	sqft
CY2019Q3	eght	Numberof Building Stories NumberofBuildingStories	5	story
CY2019Q3	us-gaap	Lessee Operating Lease Term Of Contract LesseeOperatingLeaseTermOfContract	P132M
CY2019Q3	eght	Lessee Operating Lease Number Of Renewal Terms LesseeOperatingLeaseNumberOfRenewalTerms	2	term
CY2019Q3	eght	Operating Leases Rent Expense Monthly OperatingLeasesRentExpenseMonthly	700000	USD
CY2019Q3	us-gaap	Lessee Operating Lease Renewal Term LesseeOperatingLeaseRenewalTerm	P12M
CY2019Q3	eght	Operating Leases Rent Expense Annual Rate Increase OperatingLeasesRentExpenseAnnualRateIncrease	0.03
CY2019Q3	eght	Lessee Operating Lease Tenant Improvement Allowance LesseeOperatingLeaseTenantImprovementAllowance	15400000	USD
CY2019Q3	us-gaap	Security Deposit SecurityDeposit	2000000.0	USD
CY2020Q1	eght	Lease Assignment Lease Liability LeaseAssignmentLeaseLiability	9000000.0	USD
CY2020	us-gaap	Loss On Contract Termination LossOnContractTermination	800000	USD
CY2020Q1	eght	Lease Assignment Receivable LeaseAssignmentReceivable	6900000	USD
CY2020	us-gaap	Guarantees Indemnifications And Warranties Policies GuaranteesIndemnificationsAndWarrantiesPolicies	<div style="line-height:120%;padding-bottom:10px;padding-top:10px;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;font-style:italic;">Indemnifications</span></div><div style="line-height:120%;padding-bottom:10px;padding-top:10px;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;">In the normal course of business, the Company may agree to indemnify other parties, including customers, lessors and parties to other transactions with the Company, with respect to certain matters such as breaches of representations or covenants or intellectual property infringement or other claims made by third parties. These agreements may limit the time within which an indemnification claim can be made and the amount of the claim. In addition, the Company has entered into indemnification agreements with its officers and directors.</span></div><div style="line-height:120%;padding-bottom:10px;padding-top:10px;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;">It is not possible to determine the maximum potential amount of the Company's exposure under these indemnification agreements due to the limited history of prior indemnification claims and the unique facts and circumstances involved in each particular agreement. Historically, payments made by the Company under these agreements have not had a material impact on the Company's operating results, financial position or cash flows. Under some of these agreements, however, the Company's potential indemnification liability might not have a contractual limit.</span></div>
CY2019Q1	us-gaap	Deferred Finance Costs Gross DeferredFinanceCostsGross	600000	USD
CY2018	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	3.95
CY2020Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice
CY2018	eght	Deferred Income Tax Expense Benefit1 DeferredIncomeTaxExpenseBenefit1	66248000	USD
CY2017Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	7.52
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	609135	shares
CY2018	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	14.95
CY2018	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	773897	shares
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	569000	USD
CY2020	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	70878000	USD
CY2019	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	44508000	USD
CY2018	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	29176000	USD
CY2017Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	4462412	shares
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	299365	shares
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	13.05
CY2018Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	3998285	shares
CY2018Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	8.93
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	236799	shares
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	21.65
CY2019	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	759884	shares
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	7.70
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	361129	shares
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	15.41
CY2019Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	3114071	shares
CY2019Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	9.45
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	0	shares
CY2020	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	0
CY2020	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	785281	shares
CY2020	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	8.77
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	54527	shares
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	17.01
CY2020Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	2274263	shares
CY2020Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	9.50
CY2020Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber	2255616	shares
CY2020Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageExercisePrice	9.42
CY2020Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	2115696	shares
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	66294000	USD
CY2018	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	59837000	USD
CY2017Q4	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	23000000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	800000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	600000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	66300000	USD
CY2020	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	USD
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	USD
CY2018	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-395000	USD
CY2020	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	185000	USD
CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	291000	USD
CY2018	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	256000	USD
CY2020	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	647000	USD
CY2019	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	278000	USD
CY2018	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	185000	USD
CY2020	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	832000	USD
CY2019	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	569000	USD
CY2018	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	46000	USD
CY2020	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	0	USD
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	0	USD
CY2019Q1	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	28777000	USD
CY2020	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	0	USD
CY2019	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	0	USD
CY2020Q1	us-gaap	Deferred Tax Liabilities Deferred Expense DeferredTaxLiabilitiesDeferredExpense	21608000	USD
CY2018	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	6664000	USD
CY2019Q1	us-gaap	Deferred Tax Liabilities Deferred Expense DeferredTaxLiabilitiesDeferredExpense	12221000	USD
CY2020	us-gaap	Income Tax Reconciliation Nondeductible Expense Other IncomeTaxReconciliationNondeductibleExpenseOther	3017000	USD
CY2020Q1	us-gaap	Deferred Tax Liabilities Financing Arrangements DeferredTaxLiabilitiesFinancingArrangements	16626000	USD
CY2019	us-gaap	Income Tax Reconciliation Nondeductible Expense Other IncomeTaxReconciliationNondeductibleExpenseOther	1200000	USD
CY2019Q1	us-gaap	Deferred Tax Liabilities Financing Arrangements DeferredTaxLiabilitiesFinancingArrangements	16556000	USD
CY2020	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-36163000	USD
CY2020Q1	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	57835000	USD
CY2018	us-gaap	Income Tax Reconciliation Nondeductible Expense Other IncomeTaxReconciliationNondeductibleExpenseOther	1132000	USD
CY2019	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-18441000	USD
CY2018	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-11790000	USD
CY2020	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-7680000	USD
CY2020Q1	us-gaap	Undistributed Earnings Of Foreign Subsidiaries UndistributedEarningsOfForeignSubsidiaries	9000000.0	USD
CY2019Q1	us-gaap	Undistributed Earnings Of Foreign Subsidiaries UndistributedEarningsOfForeignSubsidiaries	200000	USD
CY2018Q1	us-gaap	Undistributed Earnings Of Foreign Subsidiaries UndistributedEarningsOfForeignSubsidiaries	-19700000	USD
CY2020	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	0	USD
CY2020Q1	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	109734000	USD
CY2019Q1	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	61740000	USD
CY2020Q1	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Research DeferredTaxAssetsTaxCreditCarryforwardsResearch	19413000	USD
CY2019Q1	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Research DeferredTaxAssetsTaxCreditCarryforwardsResearch	15573000	USD
CY2020Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	10343000	USD
CY2019Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	9006000	USD
CY2020Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals	3974000	USD
CY2019Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals	5697000	USD
CY2020Q1	eght	Deferred Tax Assets Lease Liability DeferredTaxAssetsLeaseLiability	24492000	USD
CY2020Q1	us-gaap	Deferred Tax Assets Property Plant And Equipment DeferredTaxAssetsPropertyPlantAndEquipment	5314000	USD
CY2019Q1	us-gaap	Deferred Tax Assets Property Plant And Equipment DeferredTaxAssetsPropertyPlantAndEquipment	2709000	USD
CY2020Q1	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	173270000	USD
CY2019Q1	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	94725000	USD
CY2020Q1	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	115435000	USD
CY2019Q1	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	65948000	USD
CY2020Q1	eght	Deferred Tax Liabilities Right Of Use Asset DeferredTaxLiabilitiesRightOfUseAsset	19601000	USD
CY2020Q1	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	0	USD
CY2019Q1	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	0	USD
CY2020Q1	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	115400000	USD
CY2019Q1	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	65900000	USD
CY2019	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	0	USD
CY2019	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-3612000	USD
CY2018	us-gaap	Income Tax Reconciliation Tax Credits Research IncomeTaxReconciliationTaxCreditsResearch	2189000	USD
CY2018	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-1042000	USD
CY2020	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	51741000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	1082000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	1036000	USD
CY2018	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	22630000	USD
CY2020	us-gaap	Foreign Income Tax Expense Benefit Continuing Operations ForeignIncomeTaxExpenseBenefitContinuingOperations	107000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	649000	USD
CY2020	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-1422000	USD
CY2019	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	71000	USD
CY2018	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-1188000	USD
CY2020	us-gaap	Income Tax Reconciliation Tax Credits Research IncomeTaxReconciliationTaxCreditsResearch	3892000	USD
CY2019	us-gaap	Income Tax Reconciliation Tax Credits Research IncomeTaxReconciliationTaxCreditsResearch	3744000	USD
CY2019	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	30558000	USD
CY2018	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	56663000	USD
CY2020	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	-6584000	USD
CY2019	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	-7277000	USD
CY2018	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	-4965000	USD
CY2019	us-gaap	Foreign Income Tax Expense Benefit Continuing Operations ForeignIncomeTaxExpenseBenefitContinuingOperations	159000	USD
CY2018	us-gaap	Foreign Income Tax Expense Benefit Continuing Operations ForeignIncomeTaxExpenseBenefitContinuingOperations	6847000	USD
CY2020	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	1708000	USD
CY2019	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	1655000	USD
CY2018	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	196000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	832000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	569000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	66294000	USD
	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.34
CY2019Q1	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	5033000	USD
CY2018Q1	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	3980000	USD
CY2017Q1	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	3331000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	17000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2020	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	99999000	shares
CY2019	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	94533000	shares
CY2020Q1	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	6115000	USD
CY2018	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	92017000	shares
CY2020	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-1.72
CY2019Q1	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	5033000	USD
CY2018Q1	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	3980000	USD
CY2019	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.94
CY2019Q3	us-gaap	Gross Profit GrossProfit	59820000	USD
CY2019Q2	us-gaap	Gross Profit GrossProfit	58984000	USD
CY2018Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	85682000	USD
CY2018Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	83225000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-172368000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	-88739000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	-104497000	USD
CY2018	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-1.14
CY2020	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	12047000	shares
CY2019	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	11407000	shares
CY2018	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	10413000	shares
CY2020Q1	us-gaap	Gross Profit GrossProfit	63857000	USD
CY2019Q4	us-gaap	Gross Profit GrossProfit	62348000	USD
CY2018Q3	us-gaap	Net Income Loss NetIncomeLoss	-21482000	USD
CY2018Q2	us-gaap	Net Income Loss NetIncomeLoss	-15355000	USD
CY2019Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	109517000	USD
CY2019Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	96675000	USD
CY2019Q1	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	93767000	USD
CY2018Q4	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	89912000	USD
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	446237000	USD
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	352586000	USD
CY2018	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	296500000	USD
CY2020Q1	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	94382000	USD
CY2019Q1	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	52835000	USD
CY2020Q1	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	121478000	USD
CY2019Q4	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	118567000	USD
CY2020Q1	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.49
CY2019Q1	us-gaap	Gross Profit GrossProfit	59174000	USD
CY2018Q4	us-gaap	Gross Profit GrossProfit	56962000	USD
CY2018Q3	us-gaap	Gross Profit GrossProfit	54083000	USD
CY2018Q2	us-gaap	Gross Profit GrossProfit	52395000	USD
CY2020Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	-46154000	USD
CY2019Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	-32553000	USD
CY2019Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	-27425000	USD
CY2018Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	-24238000	USD
CY2018Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	-21987000	USD
CY2018Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	-15983000	USD
CY2020Q1	us-gaap	Net Income Loss NetIncomeLoss	-50100000	USD
CY2019Q4	us-gaap	Net Income Loss NetIncomeLoss	-47071000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	-40932000	USD
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	-34265000	USD
CY2019Q1	us-gaap	Net Income Loss NetIncomeLoss	-28131000	USD
CY2018Q4	us-gaap	Net Income Loss NetIncomeLoss	-23771000	USD
CY2019Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	-43168000	USD
CY2019Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	-37944000	USD
CY2019Q4	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.47
CY2019Q3	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.42
CY2019Q2	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.36
CY2019Q1	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.29
CY2018Q4	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.25
CY2018Q3	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.23
CY2018Q2	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.16

Files In Submission

Name	View Source	Status
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0001023731-20-000049-index.html	Edgar Link	pending
0001023731-20-000049.txt	Edgar Link	pending
0001023731-20-000049-xbrl.zip	Edgar Link	pending
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a8x8331202010-k.htm	Edgar Link	pending
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a8x833120ex322.htm	Edgar Link	pending
a8x833120ex41capitalst.htm	Edgar Link	pending
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a8x8exhibit21listofsu_image1.gif	Edgar Link	pending
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FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
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report.css	Edgar Link	pending
Show.js	Edgar Link	pending

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$EGHT
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2020 Form 10-K Financial Statement

#000102373120000049 Filed on May 19, 2020

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Facts In Submission

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$EGHT 8x8 Inc Stock $eght

2020 Form 10-K Financial Statement

#000102373120000049 Filed on May 19, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$EGHT
8x8 Inc Stock $eght