EGHT


Line plots across dimensions of each concept
Line plots across concepts
Tables

Table of contents



us-gaap:CommonStockValue

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareBasicAndDiluted

us-gaap:AllocatedShareBasedCompensationExpense
us-gaap:IncomeStatementLocation
us-gaap:ProductOrService, us-gaap:IncomeStatementLocation

us-gaap:ComprehensiveIncomeNetOfTax
us-gaap:ProductOrService
us-gaap:CostOfGoodsAndServicesSold

us-gaap:GeneralAndAdministrativeExpense

us-gaap:GrossProfit

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxesPaid
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:InterestExpenseDebt

us-gaap:InterestPaidNet

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:NonoperatingIncomeExpense

us-gaap:OperatingExpenses

us-gaap:OperatingIncomeLoss

us-gaap:ResearchAndDevelopmentExpense

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:ProductOrService
us-gaap:StatementGeographical

us-gaap:Revenues

us-gaap:SellingAndMarketingExpense

us-gaap:Assets

us-gaap:Liabilities

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:StockholdersEquity
us-gaap:CumulativeEffectPeriodOfAdoption, us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents

us-gaap:AssetsCurrent

us-gaap:CashAndCashEquivalentsAtCarryingValue
us-gaap:BalanceSheetLocation, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FinancialInstrument
us-gaap:BalanceSheetLocation, us-gaap:FinancialInstrument
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FinancialInstrument
us-gaap:FinancialInstrument

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:ShortTermInvestments

us-gaap:AccountsReceivableNetCurrent

us-gaap:OtherAssetsCurrent

us-gaap:PropertyPlantAndEquipmentGross
us-gaap:PropertyPlantAndEquipmentByType

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AmortizationOfIntangibleAssets

us-gaap:PropertyPlantAndEquipmentNet
us-gaap:StatementGeographical

us-gaap:LongTermInvestments

us-gaap:Goodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:FiniteLivedIntangibleAssetsNet
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OtherAssetsNoncurrent

us-gaap:AccountsPayableCurrent

us-gaap:AccruedIncomeTaxesCurrent

us-gaap:ContractWithCustomerLiabilityCurrent

us-gaap:LiabilitiesCurrent

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OtherAccruedLiabilitiesCurrent
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:LongTermDebt

us-gaap:LongTermDebtNoncurrent

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:OperatingLeaseLiability

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:StockholdersEquity
us-gaap:CumulativeEffectPeriodOfAdoption, us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents

us-gaap:CommonStockValue

us-gaap:AdditionalPaidInCapital

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
us-gaap:StatementEquityComponents

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:AmortizationOfFinancingCosts

us-gaap:IncreaseDecreaseInAccountsReceivable

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:ShareBasedCompensation

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:EffectiveIncomeTaxRateContinuingOperations

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
us-gaap:AwardType

us-gaap:DeferredTaxAssetsNet

us-gaap:UnrecognizedTaxBenefits

us-gaap:DeferredTaxAssetsValuationAllowance
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
eght:AmortizationofDebtDiscount
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
eght:IntangibleAssetsFullyAmortizedWrittenOff

eght:OperatingLeaseExpenseNetOfAccretion
us-gaap:AwardType
eght:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantedPerformanceAchievementInPeriod
us-gaap:AwardType
eght:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsPerformanceAchievementInPeriodWeightedAverageGrantDateFairValue

us-gaap:AmortizationOfDeferredSalesCommissions

us-gaap:AmortizationOfFinancingCostsAndDiscounts

us-gaap:CapitalizedComputerSoftwareAmortization1

us-gaap:CapitalizedContractCostAmortization

us-gaap:ContractWithCustomerLiabilityRevenueRecognized

us-gaap:Depreciation

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:FinanceLeasePrincipalPayments

us-gaap:GoodwillForeignCurrencyTranslationGainLoss

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities

us-gaap:IncreaseDecreaseInContractWithCustomerAsset

us-gaap:IncreaseDecreaseInContractWithCustomerLiability

us-gaap:IncreaseDecreaseInDeferredCharges

us-gaap:IncreaseDecreaseInDeferredRevenue

us-gaap:IncreaseDecreaseInOtherOperatingAssets
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:InterestExpenseDebtExcludingAmortization

us-gaap:OperatingLeaseCost

us-gaap:OperatingLeasePayments

us-gaap:OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax
us-gaap:StatementEquityComponents

us-gaap:OtherOperatingActivitiesCashFlowStatement

us-gaap:PaymentsForSoftware

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:PaymentsToAcquireBusinessesGross
us-gaap:BusinessAcquisition

us-gaap:PaymentsToAcquireMarketableSecurities

us-gaap:ProceedsFromSaleAndMaturityOfMarketableSecurities

us-gaap:ProceedsFromSaleMaturityAndCollectionOfShorttermInvestments

us-gaap:ProceedsFromStockPlans

us-gaap:ProvisionForDoubtfulAccounts

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod
us-gaap:AwardType
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod
us-gaap:AwardType
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue
us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice
us-gaap:Range, us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice

us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation
us-gaap:StatementEquityComponents

us-gaap:VariableLeaseCost

dei:EntityPublicFloat

eght:CashCashEquivalentsandDebtSecuritiesAvailableforsale
us-gaap:BalanceSheetLocation
us-gaap:BalanceSheetLocation, us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:FairValueByFairValueHierarchyLevel

eght:CashCashEquivalentsandDebtSecuritiesAvailableforsaleAmortizedCost
us-gaap:FairValueByFairValueHierarchyLevel

eght:ContractWithCustomerAsset

eght:DeferredTaxAssetsLeaseLiability

eght:DeferredTaxLiabilitiesRightOfUseAsset
us-gaap:StatementScenario, us-gaap:AwardType, us-gaap:PlanName
eght:EmployeeStockPurchasePlanMaximumContributionofEmployeesBaseCompensation

eght:FiniteLivedIntangibleAssetsAmortizationExpenseYearFiveAndThereafter

eght:LeaseAssignmentLeaseLiability

eght:LeaseAssignmentLeaseLiabilityCurrent

eght:LeaseAssignmentReceivable

eght:LesseeOperatingLeaseLiabilityToBePaidAfterYearFour

eght:OperatingLeasesReimbursementOfRentAndDirectExpenses

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FinancialInstrument

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FinancialInstrument
us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FinancialInstrument
us-gaap:BalanceSheetLocation, us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:AvailableForSaleSecuritiesDebtSecurities
us-gaap:BalanceSheetLocation, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FinancialInstrument
us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FinancialInstrument

us-gaap:CapitalizedContractCostNetCurrent

us-gaap:CapitalizedContractCostNetNoncurrent
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FinancialInstrument
us-gaap:CashAndCashEquivalentsFairValueDisclosure
us-gaap:FinancialInstrument

us-gaap:ContractWithCustomerAssetNetCurrent

us-gaap:ContractWithCustomerAssetNetNoncurrent

us-gaap:ContractWithCustomerLiability

us-gaap:ContractWithCustomerLiabilityNoncurrent
us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:ConvertibleDebtFairValueDisclosures
us-gaap:DebtInstrument, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentFairValue
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentUnamortizedDiscount
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DeferredFinanceCostsNet

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsOperatingLossCarryforwards

us-gaap:DeferredTaxAssetsPropertyPlantAndEquipment

us-gaap:DeferredTaxAssetsTaxCreditCarryforwardsResearch

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals

us-gaap:DeferredTaxLiabilitiesDeferredExpense

us-gaap:DeferredTaxLiabilitiesFinancingArrangements

us-gaap:EmployeeRelatedLiabilitiesCurrent

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
us-gaap:AwardType
us-gaap:AwardType, us-gaap:BusinessAcquisition
us-gaap:AwardType, us-gaap:PlanName

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo

us-gaap:FiniteLivedIntangibleAssetsGross
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:LeaseIncentiveReceivable

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear
us-gaap:LossContingenciesByNatureOfContingency
us-gaap:LossContingencyAccrualAtCarryingValue
us-gaap:IncomeTaxAuthority
us-gaap:OperatingLossCarryforwards
us-gaap:TaxPeriod

us-gaap:OtherAssetsMiscellaneousCurrent
us-gaap:OtherCommitments
us-gaap:OtherCommitment

us-gaap:OtherIntangibleAssetsNet

us-gaap:OtherSundryLiabilitiesCurrent

us-gaap:PrepaidExpenseCurrent

us-gaap:RestrictedCashCurrent

us-gaap:RestrictedCashNoncurrent

us-gaap:RevenueRemainingPerformanceObligation

us-gaap:RevenueRemainingPerformanceObligationPercentage

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
us-gaap:AwardType
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
us-gaap:PlanName
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice
us-gaap:AwardType
us-gaap:SharePrice
us-gaap:Vesting
us-gaap:AwardType
us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueOutstanding

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1
us-gaap:ShareRepurchaseProgram
us-gaap:StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1

us-gaap:TaxCreditCarryforwardAmount
us-gaap:IncomeTaxAuthority

us-gaap:UndistributedEarningsOfForeignSubsidiaries
us-gaap:ValuationAllowancesAndReservesType
us-gaap:ValuationAllowancesAndReservesBalance

Plots across concepts


IncomeStatement
Net Income Loss
Expenses
Income Tax Expense Benefit
Balance Sheet
Intangible Assets Net Excluding Goodwill
Assets
Operating Lease Right Of Use Asset
Current Assets
Other Assets Current
NonCurrent Assets
Long Term Investments
PropertyPlantAndEquipmentNet
Property Plant And Equipment Net
Liabilities
Operating Lease Liability
Current Liabilities
Accrued Income Taxes Current
Noncurrent Liabilities
Other Liabilities Noncurrent
Stockholders Equity
Retained Earnings Accumulated Deficit
CashFlow
Net Income Loss
NetCashProvidedByUsedInOperatingActivities
Net Income Loss
NetCashProvidedByUsedInInvestingActivities
Net Cash Provided By Used In Investing Activities
Shares
Weighted Average Number Of Share Outstanding Basic And Diluted
OperatingLeaseLiability
Operating Lease Liability Current
LesseeOperatingLeaseLiabilityPaymentsDue
Lessee Operating Lease Liability Payments Due Year Four
FiniteLivedIntangibleAssets
Finite Lived Intangible Assets Net

Tables

  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
us-gaap:CommonStockValue ██▇▇▇▇▇▆▆▆▆▆▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▃▃▂▂▂▂▂▁▁▁▁0.1110.1090.1070.1060.1040.1030.1010.10.0970.0960.0960.0950.0920.0930.0920.0920.0910.0910.090.090.0890.0890.0880.0870.0880.0880.090.0890.0890.0880.0880.0730.0730.0720.0720.0720.0710.0710.0620.0620.0620.062NANANA
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding 109.925NANANA103.607NANANANANANANA93.06492.52692.02991.68991.64391.17590.77493.44789.43488.88888.28988.55788.23391.26691.97491.61591.44588.18483.18276.23275.75675.05374.98874.55874.1173.64873.21467.75965.808NA66.87364.84764.605
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic 109.925NANANA103.607NANANANANANANA93.06492.52692.02991.68991.64391.17590.77489.98789.43488.88888.28988.55788.23388.9589.59489.07388.59288.18479.74272.9772.5171.99871.61171.26170.71770.20569.44563.7162.264NA63.28163.38363.438
us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted NANA106.641104.62103.607NA99.92298.35396.429NA95.3793.83193.064NA92.02991.68993.064NA90.774NANANA88.289NANANANANANANANANANANANANANANANANANANANANANA
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount 14.34NA14.03414.21112.284NA13.19513.85911.798NA11.4969.41910.311NA10.06410.1279.351NA0.720.4943.13NA1.2322.9022.517NA2.4761.4841.449NA1.2840.3970.937NA0.8850.9510.777NA0.6040.1740.785NANANANA
us-gaap:EarningsPerShareBasic -0.4NANANA-0.4NANANANANANANA-0.16-0.14-0.96-0.01-0.02-0.03-0.010.0-0.01-0.01-0.02-0.02-0.010.00.010.010.0-0.020.00.030.030.020.030.020.120.910.040.010.030.030.020.030.02
us-gaap:EarningsPerShareDiluted -0.4NANANA-0.4NANANANANANANA-0.16-0.14-0.96-0.01-0.02-0.03-0.010.0-0.01-0.01-0.02-0.02-0.010.00.010.010.0-0.020.00.030.030.020.030.020.120.870.040.010.030.030.020.030.02
us-gaap:EarningsPerShareBasicAndDiluted NA-0.42-0.38-0.37-0.4-0.49-0.47-0.42-0.36-0.29-0.25-0.23-0.16-0.14-0.96-0.01-0.02-0.030000000000000002-0.01NANANA-0.02NANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
 COGS Ratio us-gaap:ProductOrService us-gaap:ProductAndServiceOther▇█▆▃▂▅▃▃▁10.53110.9669.5788.1917.6248.9478.2048.1726.836NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 COGS Ratio us-gaap:ProductOrService us-gaap:Service██▇▆▆▅▆▅▄▃▃▃▂▂▂▁▁137.796133.753127.107120.942114.183103.611113.566104.52992.37289.0685.91181.34678.12175.32571.89168.12365.091NANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
us-gaap:AllocatedShareBasedCompensationExpense 36.587NA26.83925.32222.779NA19.31717.39113.597NA12.53510.1298.911NA8.136.6576.351NA6.0714.5085.0515.1324.6633.5173.0222.8582.6342.0081.8472.353.2321.1060.9070.8070.7650.5060.5560.4930.4180.3290.266NANANANA
us-gaap:ComprehensiveIncomeNetOfTax ▃▃▃▃▃▃▃▃▃▄▄▄▄▄▁▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅█▅▅▅-43.656-45.724-35.761-35.511-40.606-55.711-42.496-44.188-34.796-27.399-24.421-21.712-16.914-12.458-88.5350.844-0.351-2.245-3.286-1.512-3.166-1.927-2.897-3.330.958-0.773-0.6830.2960.547-1.7420.4072.2412.0741.661.8761.7828.64363.8932.5780.7941.962NANANANA
 us-gaap:CostOfGoodsAndServicesSold us-gaap:ProductOrService us-gaap:ProductAndServiceOther▅▅▅▂▁▆█▅▃13.74613.87413.36411.69311.13714.50715.43313.88412.391NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfGoodsAndServicesSold us-gaap:ProductOrService us-gaap:Service▇██▇▆▃█▇▅▄▂▂▂▃▁▁▁▂▂▂▂46.0147.23947.04444.80340.99620.52549.32643.19531.96728.80917.04315.86615.07923.83312.31812.75711.66218.07917.28517.51217.701NANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:GeneralAndAdministrativeExpense ██▇▇█▇▇▆▆▆▄▅▄▃▃▃▃▃▃▂▂▃▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁26.09127.67523.84422.76925.7924.43622.54720.43519.60720.36514.19616.54311.43310.3410.0039.6168.9569.8147.8526.7476.8017.1326.8885.6576.0685.7944.6173.8933.8783.9245.5473.1252.792.3492.1362.072.0641.641.4811.6661.225NANANANA
us-gaap:GrossProfit NA83.60676.27772.63769.67463.85762.34859.8258.98459.17456.96254.08352.39549.68549.99646.03744.055NANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest ▂▂▂▂▂▁▁▂▃▃▄▄▅▅▅▆▆▆▆▆▆▆▆▆▆▆▇▇▇▆▆▇▇▇▇▇█▇▇▇▇▇▇▇▇-43.65-44.857-39.924-38.276-41.685-49.952-46.791-40.676-34.117-27.895-23.659-21.352-15.264-13.12-17.678-3.999-3.405-3.103-1.2950.012-0.491-2.574-2.237-1.4690.3130.2621.0712.7020.68-0.233-1.2172.3143.2043.6682.8332.77314.3981.7932.6010.8541.6262.0591.4961.9721.022
us-gaap:IncomeTaxExpenseBenefit ▄▄▄▄▄▄▄▄▄▄▄▄▄▄█▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▅▁▄▄▄▄▄▄▄0.2560.1770.3010.1370.2280.1480.280.2560.1480.2360.1120.130.0910.14270.842-3.453-1.236-0.1780.03-0.0150.037-1.498-0.5570.4230.7850.0790.6271.4110.6721.738-1.3060.8261.0652.0070.9131.0325.781-62.070.0150.022-0.3210.0480.00.0030.004
us-gaap:IncomeTaxesPaid █▁█▇▆▆█▅▆▄▄▅▅▁▄▅▄▅▄▆▅▄▅▇▄▃▅▄▅▃▆▅▅▄0.337-0.2060.3550.2410.1650.2150.3580.1430.2180.0660.040.1230.127-0.1790.0430.1050.0690.110.0640.1990.0870.0040.1420.2470.052-0.0220.0880.0080.085-0.0520.2030.120.1560.0NANANANANANANANANANANA
 us-gaap:InterestExpenseDebt us-gaap:DebtInstrument,us-gaap:LongtermDebtType eght:AggregateNotes,us-gaap:ConvertibleDebt4.846NA4.714.6444.578NA3.9913.5853.531NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:InterestPaidNet NA0.9070.0NANA0.9060.0NANA0.00.0NANA0.0080.012NANA0.00.004NANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:NetIncomeLoss ▃▃▃▃▃▃▃▃▃▄▄▄▄▄▁▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅█▅▅▅▅▅▅▅-43.906-45.034-40.225-38.413-41.913-50.1-47.071-40.932-34.265-28.131-23.771-21.482-15.355-13.262-88.52-0.546-2.169-2.925-1.3250.027-0.528-1.076-1.68-1.892-0.4720.1830.4441.2910.008-1.9450.0892.2312.1391.6611.921.7418.61763.8632.5860.8321.9472.0111.4961.9691.018
 us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents us-gaap:RetainedEarnings-43.906NA-40.225-38.413-41.913NA-47.071-40.932-34.265NA-23.771-21.482-15.355NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:NonoperatingIncomeExpense ▁▁▁▁▂▂▃▃▄▇▇▇▇▇▇▆█▇▆▆▆▆▆▆▆▆▆▆▆▆▇▆-4.823-4.821-4.669-5.178-3.925-3.798-3.623-2.732-1.5640.8850.5790.6350.7190.610.5690.4632.0520.5830.4080.3910.410.3970.2720.2040.2340.210.2460.20.1770.140.5860.001NANANANANANANANANANANANANA
us-gaap:OperatingExpenses ██▇▇▇▇▇▆▆▅▅▅▅▄▄▄▄▃▃▃▃▃▃▃▂▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁187.154184.755171.94162.231159.567167.632161.735147.461129.228122.547114.15107.66999.20893.07493.82276.94574.55570.17465.37963.56260.94260.30555.67752.61547.81343.47840.54737.09637.4136.15934.54828.50226.81524.99824.5823.60710.86222.04320.72618.95416.90116.15116.3615.41615.992
us-gaap:OperatingIncomeLoss ▂▂▂▃▂▁▁▂▃▃▄▄▄▅▄▆▆▆▆▆▆▆▆▆▆▆▆▇▆▆▆▇▇▇▇▇█▇▇▆▇▇▇▇▆-38.827-40.036-35.255-33.098-37.76-46.154-43.168-37.944-32.553-28.78-24.238-21.987-15.983-13.73-18.247-4.462-5.457-3.686-1.703-0.379-0.901-2.971-2.509-1.6730.0790.0520.8252.5020.503-0.373-1.8032.3133.1893.6532.762.76414.392.1562.5520.8651.6062.0331.4181.9510.842
us-gaap:ResearchAndDevelopmentExpense ███▇▇▆▆▆▆▆▆▅▄▄▃▃▃▃▃▃▃▂▃▃▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁▁25.39225.27123.70221.56721.49420.15519.8719.43418.33118.06416.87613.93313.1110.0168.5278.3117.9437.1427.0956.5056.716.116.4046.4465.084.3483.8683.4963.4063.3323.3252.642.3362.1742.1172.031.8261.8431.9551.541.4071.1911.1311.2711.226
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax ██▇▇▇▇▆▆▅▅▅▄▄▄▄▄▄▄▃▃▃▃▃▃▃▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁148.327144.719136.685129.133121.807121.478118.567109.51796.67593.76789.91281.34678.12179.34475.57572.48369.09866.48963.67663.18360.04157.33453.16850.94247.89243.5341.37239.59837.91335.78632.74530.81530.00428.65127.3426.37125.25224.19923.27819.81918.50718.18417.77817.36716.834
us-gaap:Revenues ██▇▇▇▇▆▆▅▅▅▅▅▄▄▄▄▄▃▃▃▃▃▃▃▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁148.327144.719136.685129.133121.807121.478118.567109.51796.67593.76789.91285.68283.22579.34475.57572.48369.09866.48863.67663.18360.04157.33453.16850.94247.89243.5341.37239.59837.91335.78632.74530.81530.00428.65127.3426.37125.25224.19923.27819.81918.50718.18417.77817.36716.834
us-gaap:SellingAndMarketingExpense █▇▇▆▆▇▇▆▆▅▆▆▆▆▅▄▄▄▄▄▃▃▃▃▃▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁75.91570.69663.98661.39960.1565.4263.09957.89553.59949.52560.71755.9353.30552.9448.8341.16341.1138.22835.66733.69131.69131.2427.58526.7323.82421.50820.55919.4419.1618.03816.05113.74513.12113.04211.65111.0110.54110.9049.8169.0768.184NANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
us-gaap:Assets ▇▇█████▇▆▆▄▄▄▃▃▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▂▂▂▂▂▂▂▁▁▁▁675.658678.409692.811687.244688.093700.641732.499666.61558.493546.358304.026309.632315.551277.209274.925357.843360.146333.855323.848322.032315.647313.452303.588298.616307.032295.624308.018307.333303.154299.203296.551161.898157.281152.611148.943144.719140.624130.73366.60761.66729.26926.584NANANA
us-gaap:Liabilities ███████▇▅▅▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁518.862517.905525.408512.785509.227509.91513.008427.733328.346296.96876.29870.26963.70958.43554.51650.90348.32945.25441.57340.70838.66738.14634.28130.90530.59323.41322.23722.88122.41321.02521.15416.57816.09115.57814.96413.73113.01912.28312.7513.52611.05210.723NANANA
us-gaap:LiabilitiesAndStockholdersEquity ▇▇█████▇▆▆▄▄▄▃▃▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▂▂▂▂▂▂▂▁▁▁▁675.658678.409692.811687.244688.093700.641732.499666.61558.493546.358304.026309.632315.551277.209274.925357.843360.146333.855323.848322.032315.647313.452303.588298.616307.032295.624308.018307.333303.154299.203296.551161.898157.281152.611148.943144.719140.624130.73366.60761.66729.26926.584NANANA
us-gaap:StockholdersEquity ▄▄▅▅▅▅▆▆▆▇▆▆▇▆▆██▇▇▇▇▇▇▇▇▇▇▇▇▇▇▄▄▄▄▄▄▃▂▂▁▁156.796160.504167.403174.459178.866190.731219.491238.877230.147249.39227.728239.363251.842218.774220.409306.94311.817288.601282.275281.324276.98275.306269.307267.711276.439272.211285.781284.452280.741278.178275.397145.32141.19137.033133.979130.988127.605118.4553.85748.14118.21715.861NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
us-gaap:AssetsCurrent ▆▆▆▆▆▆▆▆▇█▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▃▄▂▂▂▂▁▁▁▁▁▁▁266.23276.533274.264268.539267.801277.162302.381267.12357.128397.391161.509175.324186.022178.598189.154194.215202.101197.354192.483189.235184.887185.9174.9168.672174.137191.596200.317198.566192.749116.933186.75874.50968.13263.6751.8647.0544.5735.88625.34822.77722.16622.076NANANA
us-gaap:CashAndCashEquivalentsAtCarryingValue ▃▄▃▄▄▄▆▅██▁▁▁▁▁▁▂▂▁▁▁▁▁▁▁▂▂▂▂▂▅▂▂▂▂▂▂▁▁▁▁▁▁▁▁109.288112.531106.877121.848116.69137.394184.794162.219269.025276.58328.32524.67734.55731.70331.76934.5753.17541.0333.45732.09427.46633.57623.86628.79529.29853.1152.59856.04855.07359.159172.11459.34555.91550.30544.55738.10836.27422.42620.00417.216.93416.47418.58617.87518.092
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents ▃▃▄▄▄▄▆▅██▁▁▁▁▁117.929121.172122.435137.406135.707156.411203.811181.236277.125284.68336.42532.77742.65739.80331.769NANA41.03NANANA33.576NANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:ShortTermInvestments ▂▃▃▂▃▂▁▁▁█31.23140.33741.73831.38140.5833.45830.28329.32427.48669.899NA104.232109.903120.559129.208132.48124.63133.959139.194137.65139.607129.274130.719120.352127.668123.984135.291129.519126.93747.1811.9011.9091.8991.9641.9652.0091.9681.9421.9121.9041.9421.927NANANA
us-gaap:AccountsReceivableNetCurrent ███▇▇▆▆▅▄▄▄▄▃▃▃▃▃▃▃▃▂▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁49.75551.1550.40442.97140.57237.81137.38430.74323.36120.18119.06818.8717.72516.29617.93715.17914.47814.26413.06911.66111.53811.079.92710.1358.0416.6427.2337.2665.9475.5035.1694.6863.5953.883.6054.1532.8372.2791.9171.7961.070.863NANANA
us-gaap:OtherAssetsCurrent ▇▇██▇▇▆▅▅▄▃▃▃▃▃▃▃▂▂▂▂▂▂▂▂▁▁▁▁▁▁▂▁▁▁▁▁▁▁▁▁▁36.06634.09539.56539.08835.33635.67925.71222.80320.44115.12713.16613.88911.13110.0410.2411.9869.8186.5745.5516.6675.0966.0785.0684.3234.0342.2742.5212.6562.2011.9511.9994.1080.9550.7320.7360.9330.810.8060.8191.0580.5360.584NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
us-gaap:PropertyPlantAndEquipmentGross NA185.449NANANA168.352NANANA102.231NANANA69.172NANANA39.352NANANA32.289NANANA26.308NANANA17.047NANANA15.023NANANA10.808NANANANANANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType eght:SoftwareLicenseNA7.798NANANA1.569NANANA9.713NANANA8.663NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:ComputerEquipmentNA40.905NANANA38.105NANANA34.706NANANA29.761NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:ConstructionInProgressNA10.651NANANA13.852NANANA10.071NANANA2.394NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:FurnitureAndFixturesNA5.565NANANA5.485NANANA2.324NANANA1.637NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:LeaseholdImprovementsNA28.714NANANA31.706NANANA6.286NANANA6.573NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:SoftwareDevelopmentNA91.816NANANA77.635NANANA39.131NANANA20.144NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment NA92.373NANANA73.97NANANA49.396NANANA33.44NANANA22.968NANANA19.914NANANA16.06NANANA9.336NANANA8.35NANANA6.988NANANANANANANA
us-gaap:AmortizationOfIntangibleAssets ▄▄▅▆▇█▇▇▅▅▅▅▅▄▄▄▅▄▃▃▃▄▄▄▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▁▁1.2851.2961.5351.8272.2282.6932.3222.3031.5241.6241.6941.4251.4321.0381.181.2931.5221.0210.8730.9080.960.9921.0021.0170.5460.5450.5540.5660.5670.5690.4030.3310.340.3570.3570.3570.3570.3570.3570.0480.026NANANANA
us-gaap:PropertyPlantAndEquipmentNet ███████▆▅▅▄▄▄▃▃▃▃▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁▁90.77693.07694.4896.18596.11294.38289.77664.77657.71752.83547.74442.39538.135.73232.55129.626.97316.38415.22415.31513.01512.37511.96911.3111.71410.24810.1799.5558.3397.7117.4856.3356.6366.6736.9227.2255.243.823.4833.2522.3932.398NANANA
us-gaap:LongTermInvestments 12.712NA3.8786.1819.96516.08320.12620.44821.6670.0NANANANANANANANANANANA0.0NANANA0.00.00.00.072.021NANANA0.0NANANANANANANANANANANA
us-gaap:Goodwill ████████▃▃▃▃▃▃▃▃▃▃▃▃▃▃▄▄▄▃▃▃▃▃▃▂▂▂▂▂▂▂▂▂▁▁131.599131.52132.067130.152128.98128.3131.0131.87939.40339.69439.44239.49539.65140.05439.57647.51946.92646.13644.32745.2945.93147.4248.14448.69548.03936.88737.49738.11438.80238.46138.23523.93925.1525.1525.1525.1525.1525.1525.1522.6422.4661.21NANANA
us-gaap:IntangibleAssetsNetExcludingGoodwill ▅▅▆▆▆▇▇█▃▄▄▄▄▄▄▅▅▅▅▅▆▆▇▇█▄▄▄▅▅▅▃▃▃▄▄▄▄▄▄▁▁15.84517.1318.42619.95921.77324.00126.45528.4110.12511.6813.27312.16213.6111.95812.67714.95715.9517.03816.72618.21219.53121.46423.0525.08328.5112.2613.03213.82614.6715.09515.6069.5239.85410.19410.55110.90811.26511.62211.97912.3361.2340.214NANANA
us-gaap:FiniteLivedIntangibleAssetsNet ▃▄▄▅▆▆▇█▁▂▂▂▃▂▂▃▃▄▄▄▅▅▆▇█▂▂▃▃▃▃▁▁▁▁▂▂▂15.84517.1318.42619.95921.77324.00126.45528.4110.12511.6813.27312.16213.6111.95812.67714.95715.9517.03816.72618.21219.53121.46423.0525.08328.5112.2613.03213.82614.6715.09515.6069.5239.85410.19410.55110.90811.26511.622NANANANANANANA
us-gaap:OperatingLeaseRightOfUseAsset ▆▇▇▇████▁63.40266.66470.44372.84176.05478.96377.06278.14718.058NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherAssetsNoncurrent █████▇█▇▄▂▂▂▂▂▁▁▁▄▃▃▂▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁20.23820.59720.83220.68520.23219.80221.48518.1339.4522.9653.0652.9273.0272.7670.9670.4170.4328.0846.6455.4153.7513.1042.3561.6871.4631.4641.3071.1441.0741.1851.1011.0660.9830.5720.3950.4090.4220.2780.6470.661.010.686NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
us-gaap:AccountsPayableCurrent ▅▅▅▆▆▆█▇▅▅▅▅▅▄▄▃▄▃▂▃▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁33.23331.23632.33735.27839.34240.26150.33442.13432.72332.2828.31827.64926.923.89921.75520.12320.51215.71112.53714.02612.64910.9549.9179.8529.7367.7757.2728.8988.2176.7896.4975.9085.55.6445.175.0656.3755.4764.4814.7193.4484.551NANANA
us-gaap:AccruedIncomeTaxesCurrent ▆▇█▆▅▆▆▇▆██▇▄▄▃▃▄▃▃▃▃▃▃▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁11.32112.12914.29911.5749.2210.25111.6712.17511.60213.86214.47412.4387.936.3675.4475.2866.735.3545.0835.4245.395.24.7533.8193.4372.82.8792.572.4532.3232.1091.7462.1041.9121.9671.6771.5841.4721.4321.7011.9511.828NANANA
us-gaap:ContractWithCustomerLiabilityCurrent ██▇▃▃▂▂▁▁▁▁21.98520.73718.0159.4528.3527.1057.2164.274.0883.3363.523NANA2.559NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LiabilitiesCurrent ███▇███▇▆▅▅▄▄▄▄▃▃▃▃▃▂▂▂▂▂▂▂▂▂▁▂▁▁▁▁▁▁▁▁▁▁▁121.202121.378127.754116.413121.54123.425121.636109.04788.83474.70571.23566.26260.72256.26353.35649.33946.42543.34438.49137.27535.42634.73430.42226.68225.68821.8320.05220.34919.78618.12119.4714.84514.30313.73513.0711.91112.9812.21512.3513.11710.62410.684NANANA
us-gaap:OperatingLeaseLiabilityCurrent ███▅▆▂▁▂▃12.79212.94212.6919.4989.9895.8754.325.2927.063NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherAccruedLiabilitiesCurrent ▄▄▅▅▆█▅▅▃▂▂▂▂▂▂▂▂▂▂▁▁▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁13.99514.45520.41921.91326.87337.27723.70419.32911.276.795.5985.26.6886.0266.7235.6264.8645.3833.6273.0333.2264.083.7433.3133.3542.9651.3751.3211.4921.9091.7110.7960.9050.8620.7910.7610.8250.8841.7322.3722.2271.386NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
 us-gaap:LongTermDebt us-gaap:DebtInstrument,us-gaap:LongtermDebtType eght:AggregateNotes,us-gaap:ConvertibleDebt█▇▆▄▃▂▁312.828308.435304.111299.853295.662291.537287.465NANA216.035NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LongTermDebt us-gaap:DebtInstrument,us-gaap:LongtermDebtType eght:ConvertibleSeniorNotes,us-gaap:ConvertibleDebtNA308.435NANANA291.537NA222.432219.208216.035NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LongTermDebtNoncurrent ██▇▇▇▆▆▁▁▁312.828308.435304.111299.853295.662291.537287.464222.432219.208216.035NANANA0.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherLiabilitiesNoncurrent ▃▃▄▄▂▂▇█▄▃▃▂▂▂▁▂▂▂▂▂▂▂▂▂▃▁▁▁▂▂▂▂▂▂▂▂▁▁▁▁▁▁5.4295.6368.1649.0574.1412.49617.72121.0338.266.2225.0634.0072.9872.1531.161.5641.9041.853.0013.3213.1073.2583.7224.0464.7091.3521.4251.4941.5551.6191.6721.7171.7671.8431.8941.820.0390.0680.40.4090.4280.039NANANA
us-gaap:OperatingLeaseLiabilityNoncurrent ▇▇▇███▇▆▁79.40382.45685.37987.46287.88492.45286.18775.22112.044NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo ▁███11.85115.15515.18215.007NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree ▁██▆11.51411.84511.83511.766NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour ▁██▇10.51311.50811.49711.429NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive NA10.507NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive NA47.693NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
us-gaap:StockholdersEquity ▄▄▅▅▅▅▆▆▆▇▆▆▇▆▆██▇▇▇▇▇▇▇▇▇▇▇▇▇▇▄▄▄▄▄▄▃▂▂▁▁156.796160.504167.403174.459178.866190.731219.491238.877230.147249.39227.728239.363251.842218.774220.409306.94311.817288.601282.275281.324276.98275.306269.307267.711276.439272.211285.781284.452280.741278.178275.397145.32141.19137.033133.979130.988127.605118.4553.85748.14118.21715.861NANANA
us-gaap:CommonStockValue ██▇▇▇▇▇▆▆▆▆▆▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▃▃▂▂▂▂▂▁▁▁▁0.1110.1090.1070.1060.1040.1030.1010.10.0970.0960.0960.0950.0920.0930.0920.0920.0910.0910.090.090.0890.0890.0880.0870.0880.0880.090.0890.0890.0880.0880.0730.0730.0720.0720.0720.0710.0710.0620.0620.0620.062NANANA
us-gaap:AdditionalPaidInCapital ██▇▇▆▆▆▅▅▅▄▄▄▄▃▃▄▃▃▃▃▃▃▃▃▃▃▃▃▃▃▁▁▁▁▁▁▁▁▁▁▁795.589755.643716.82688.116657.014625.474598.525575.416522.501506.949457.887445.103435.872425.79414.968412.963418.685412.762404.192399.955394.1389.26381.335376.844382.241378.971391.766389.755386.34384.325379.802250.147248.258246.176244.782243.667242.067241.555240.864237.742208.612208.218NANANA
us-gaap:RetainedEarningsAccumulatedDeficit ▁▂▂▃▃▄▄▅▆▆▆▇▇▇▇███████████████████████▇▇▇▇-634.961-591.055-546.021-505.796-467.383-422.67-372.57-325.499-284.567-250.302-222.17-198.4-176.918-201.464-188.202-99.681-99.135-114.61-111.685-110.36-110.387-109.859-108.783-107.103-105.211-104.739-104.922-105.366-106.657-106.665-104.72-104.809-107.04-109.179-110.84-112.76-114.501-123.118-186.981-189.567-190.399-192.346NANANA
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax ▅▅▆▃▂▁▄▂▃▄▃▄▄▄▄▄▃▂▂▃▄▅▆▆▇▆▇▇███▇▇▇▇▇▇▇▇▇▇▇-3.943-4.193-3.503-7.967-10.869-12.176-6.565-11.14-7.884-7.353-8.085-7.435-7.204-5.645-6.449-6.434-7.824-9.642-10.322-8.361-6.822-4.184-3.333-2.117-0.679-2.109-1.153-0.0260.9690.430.227-0.091-0.101-0.036-0.0350.009-0.032-0.058-0.088-0.096-0.058-0.073NANANA
us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue 36.508NA27.35826.39623.118NA19.88117.86714.059NA13.0669.8299.304NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
us-gaap:NetCashProvidedByUsedInOperatingActivities █▇▇▆▅▁▄▂▃▆▇▆▇█4.0320.799-1.797-3.818-9.25-31.069-18.321-24.006-20.509-8.195-2.123-5.3390.7892.663NANANANANANANANANANANANANANA4.653.3442.5623.7785.2335.7976.6284.43714.9262.8033.1661.1022.141.6152.682.2012.093
us-gaap:NetCashProvidedByUsedInInvestingActivities ▆▆▆▇▆▅▅▁██▇▇▇▇-11.146-9.179-15.6760.434-11.9-21.458-24.912-71.09511.1716.2084.931-2.0871.821.937NANANANANANANANANANANANANANA-8.868-118.322-16.227-1.124-0.794-0.623-0.515-3.682-1.048-0.529-0.532-1.024-0.9-0.162-2.81-0.45-1.942
us-gaap:NetCashProvidedByUsedInFinancingActivities ▁▁▁▁▁▁▃▁▁█▁▁▁▁3.4357.2771.3444.705-0.1346.25365.361-0.8861.367250.2680.958-2.4890.5013.399NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect ▃▃▃▃▃▂▃▁▃█▃▃▃▃-3.243-1.263-14.9711.699-20.704-47.422.575-95.889-7.558248.2583.648-9.882.8548.034NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
 us-gaap:AmortizationOfFinancingCosts us-gaap:DebtInstrument,us-gaap:LongtermDebtType eght:AggregateNotes,us-gaap:ConvertibleDebt0.061NA0.0590.0580.057NA0.040.0270.026NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:IncreaseDecreaseInAccountsReceivable ▁▃█▄▅▅▇▁▅▃▃▄▃▁▄▃▂▃▃▃▃▃▂▄▃▂▂▃▂▂▂▃▂▂▂▃▃▂▂▃▂▂▂▂▂-0.9241.5926.9872.8623.4283.9616.213-1.2023.7651.4280.6181.851.497-0.9032.1221.0360.1471.5321.4080.8161.0431.4010.1622.3640.612-0.5330.1791.4810.4020.471-0.0751.311-0.1320.471-0.351.4240.6260.4170.2040.693-0.2550.127-0.0370.415-0.147
us-gaap:NetCashProvidedByUsedInOperatingActivities █▇▇▆▅▁▄▂▃▆▇▆▇█4.0320.799-1.797-3.818-9.25-31.069-18.321-24.006-20.509-8.195-2.123-5.3390.7892.663NANANANANANANANANANANANANANA4.653.3442.5623.7785.2335.7976.6284.43714.9262.8033.1661.1022.141.6152.682.2012.093
us-gaap:NetIncomeLoss ▃▃▃▃▃▃▃▃▃▄▄▄▄▄▁▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅█▅▅▅▅▅▅▅-43.906-45.034-40.225-38.413-41.913-50.1-47.071-40.932-34.265-28.131-23.771-21.482-15.355-13.262-88.52-0.546-2.169-2.925-1.3250.027-0.528-1.076-1.68-1.892-0.4720.1830.4441.2910.008-1.9450.0892.2312.1391.6611.921.7418.61763.8632.5860.8321.9472.0111.4961.9691.018
 us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents us-gaap:RetainedEarnings-43.906NA-40.225-38.413-41.913NA-47.071-40.932-34.265NA-23.771-21.482-15.355NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:ShareBasedCompensation █▇▆▆▅▅▅▄▄▃▃▃▃▃▃▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁▂▁▁▁▁▁▁▁▁▁▁▁▁▁▁36.58732.69826.83925.32222.77920.57319.31717.39113.59712.93412.53410.1298.9118.0388.136.6576.3515.8326.0714.5085.0515.1324.6633.5173.0222.8582.6342.0081.8472.353.2321.1060.9070.8070.7650.5060.5560.4930.4180.3290.2660.230.0990.0560.073
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
us-gaap:NetCashProvidedByUsedInInvestingActivities ▆▆▆▇▆▅▅▁██▇▇▇▇-11.146-9.179-15.6760.434-11.9-21.458-24.912-71.09511.1716.2084.931-2.0871.821.937NANANANANANANANANANANANANANA-8.868-118.322-16.227-1.124-0.794-0.623-0.515-3.682-1.048-0.529-0.532-1.024-0.9-0.162-2.81-0.45-1.942
us-gaap:PaymentsToAcquirePropertyPlantAndEquipment ▂▂▂▂▂▇█▃▂▃▃▂▂▂▂▂▂▂▂▃▂▂▂▂▂▂▂▂▂▂▂▂▁▁▁▃▂▂▁▂▁▁▂▂▁0.8781.4550.8041.7182.45312.98115.7155.1541.9843.3182.91.6551.2232.6542.5031.7282.2932.3421.2793.6261.6041.5991.1771.0451.0731.3031.971.5271.0260.7720.6360.9790.4660.4330.5153.6821.0480.5570.5321.396-0.1850.1660.8111.709-0.629
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
us-gaap:NetCashProvidedByUsedInFinancingActivities ▁▁▁▁▁▁▃▁▁█▁▁▁▁3.4357.2771.3444.705-0.1346.25365.361-0.8861.367250.2680.958-2.4890.5013.399NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value111000.0109000.0107000.0106000.0104000.0103000.0101000.0100000.097000.096000.096000.095000.092000.093000.092000.092000.091000.091000.090000.090000.089000.089000.088000.087000.088000.088000.090000.089000.089000.088000.088000.073000.073000.072000.072000.072000.071000.071000.062000.062000.062000.062000.0
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.10.10.10.10.20.2

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding


Weighted
Period End2021-06-302020-06-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312010-09-302010-06-30
Value1091039392929191919093898888888891919191888376757574747473736765666464
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic


Weighted
Period End2021-06-302020-06-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-312010-09-302010-06-30
Value1091039392929191919089898888888888898988887972727171717070696362636363
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Share Outstanding Basic And Diluted

us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted

us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted


Weighted
Period End2020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302016-12-312015-12-31
Value1061041039998969593939291939088
Percentage of WeightedAverageNumberOfShareOutstandingBasicAndDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount


Antidilutive
Period End2021-06-302020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302016-12-312016-09-302016-06-302015-12-312015-09-302015-06-302014-12-312014-09-302014-06-302013-12-312013-09-302013-06-302012-12-312012-09-302012-06-302011-12-312011-09-302011-06-30
Value14141412131311119.4191010109.3510.720.4943.131.2322.9022.5172.4761.4841.4491.2840.3970.9370.8850.9510.7770.6040.1740.785
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities

eght:SharesIssuedUnderEmployeeStockPurchasePlan


Antidilutive
Period End2021-06-302020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302018-06-30
Value0.4440.5290.5290.5820.3870.3870.6360.62
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount3.13.83.74.72.92.85.46.0

us-gaap:EmployeeStockOption


Antidilutive
Period End2021-06-302020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302016-12-312016-09-302016-06-30
Value1.4132.0712.212.2592.6682.7882.9743.3873.5223.8914.2924.2284.3484.7710.1874.655
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount9.914.815.618.420.220.125.229.537.437.742.641.746.5662.637.9148.7

us-gaap:RestrictedStock


Antidilutive
Period End2021-06-302020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302018-12-312018-09-302018-06-302017-12-31
Value1211119.4439.79108.1888.1095.8546.425.772
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount87.181.580.776.974.274.669.470.562.262.357.4

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareBasic


Earnings
Period End2021-06-302020-06-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value-0.4-0.4-0.16-0.14-0.96-0.01-0.02-0.03-0.010-0.01-0.01-0.02-0.02-0.0100.010.010-0.0200.030.030.020.030.020.120.910.040.010.030.030.020.030.02
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.00.0100.0100.00.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareDiluted


Earnings
Period End2021-06-302020-06-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value-0.4-0.4-0.16-0.14-0.96-0.01-0.02-0.03-0.010-0.01-0.01-0.02-0.02-0.0100.010.010-0.0200.030.030.020.030.020.120.870.040.010.030.030.020.030.02
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.00.0100.0100.00.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Basic And Diluted

us-gaap:EarningsPerShareBasicAndDiluted

us-gaap:EarningsPerShareBasicAndDiluted


Earnings
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value-0.42-0.38-0.37-0.4-0.49-0.47-0.42-0.36-0.29-0.25-0.23-0.16-0.14-0.96-0.01-0.02-0.03-0.01-0.02
Percentage of EarningsPerShareBasicAndDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Allocated Share Based Compensation Expense

us-gaap:AllocatedShareBasedCompensationExpense

us-gaap:AllocatedShareBasedCompensationExpense


Allocated
Period End2021-06-302020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value3626252219171312108.9118.136.6576.3516.0714.5085.0515.1324.6633.5173.0222.8582.6342.0081.8472.353.2321.1060.9070.8070.7650.5060.5560.4930.4180.3290.266
Percentage of AllocatedShareBasedCompensationExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax24.719.619.618.716.315.914.113.912.511.410.89.29.29.57.18.49.08.86.96.36.66.45.14.96.69.93.63.02.82.81.92.22.01.81.71.4

us-gaap:AllocatedShareBasedCompensationExpense us-gaap:IncomeStatementLocation

us-gaap:GeneralAndAdministrativeExpense


Allocated
Period End2021-06-302020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value105.5656.497.8946.3595.8954.0812.6952.8422.4142.5192.3021.9762.021.4541.8892.1691.7781.1061.0751.0681.0470.6230.6741.0652.1320.5040.3380.2290.2220.080.101
Percentage of AllocatedShareBasedCompensationExpense28.820.725.634.732.933.930.021.528.127.131.034.631.133.332.337.442.338.131.435.637.439.731.036.545.366.045.637.328.429.015.818.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.14.15.06.55.45.44.23.03.53.13.33.22.93.22.33.13.83.32.22.22.52.51.61.83.06.51.61.10.80.80.30.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:GeneralAndAdministrativeExpense0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ResearchAndDevelopmentExpense


Allocated
Period End2021-06-302020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value8.6988.2978.2556.5455.5354.2173.8643.572.8232.1941.7941.3141.3371.0610.8630.8870.8070.850.7260.5310.4460.420.3150.3140.3330.3390.1410.1540.1330.1250.0750.095
Percentage of AllocatedShareBasedCompensationExpense23.830.932.628.728.724.228.428.527.924.622.119.721.117.519.117.615.718.220.617.615.615.915.717.014.210.512.717.016.516.314.817.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.96.16.45.44.73.94.04.03.52.82.41.81.91.71.41.51.41.61.41.11.01.00.80.80.91.00.50.50.50.50.30.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ResearchAndDevelopmentExpense0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:SellingAndMarketingExpense


Allocated
Period End2021-06-302020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value149.3637.0545.7395.1975.343.9215.593.8263.8453.3622.5682.6472.4521.7511.9151.8251.6891.4221.1971.1280.9660.910.7440.8170.660.3930.3470.3840.3550.3080.316
Percentage of AllocatedShareBasedCompensationExpense39.234.927.925.226.930.728.844.637.843.141.438.641.740.438.837.935.636.240.439.639.536.745.340.334.820.435.538.347.646.460.956.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax9.76.95.54.74.44.94.16.24.74.94.43.53.83.92.83.23.23.22.82.52.62.32.32.02.32.01.31.21.31.31.21.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:SellingAndMarketingExpense0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AllocatedShareBasedCompensationExpense us-gaap:ProductOrService, us-gaap:IncomeStatementLocation

us-gaap:ProductAndServiceOther, us-gaap:CostOfSales


Allocated
Period End2021-06-302020-12-312020-09-302020-06-302019-12-312019-09-302019-06-30
Value1.0711.1421.1130.7870.8390.7570.734
Percentage of AllocatedShareBasedCompensationExpense2.94.34.43.54.34.45.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.70.80.90.60.70.70.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductAndServiceOther us-gaap:CostOfSales0.00.00.00.00.00.00.0

us-gaap:Service, us-gaap:CostOfSales


Allocated
Period End2021-06-302020-12-312020-09-302020-06-302019-12-312019-09-302019-06-30
Value1.9682.4722.411.8141.3871.1820.997
Percentage of AllocatedShareBasedCompensationExpense5.49.29.58.07.26.87.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.31.81.91.51.21.11.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Service us-gaap:CostOfSales0.00.00.00.00.00.00.0

Comprehensive Income Net Of Tax

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTax


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value-43.656-45.724-35.761-35.511-40.606-55.711-42.496-44.188-34.796-27.399-24.421-21.712-16.914-12.458-88.5350.844-0.351-2.245-3.286-1.512-3.166-1.927-2.897-3.330.958-0.773-0.6830.2960.547-1.7420.4072.2412.0741.661.8761.7828.643632.5780.7941.962
Percentage of ComprehensiveIncomeNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-29.4-31.6-26.2-27.5-33.3-45.9-35.8-40.3-36.0-29.2-27.2-26.7-21.7-15.7-117.11.2-0.5-3.4-5.2-2.4-5.3-3.4-5.4-6.52.0-1.8-1.70.71.4-4.91.27.36.95.86.96.834.2264.011.14.010.6

Cost Of Goods And Services Sold

us-gaap:CostOfGoodsAndServicesSold us-gaap:ProductOrService

us-gaap:CostOfGoodsAndServicesSold

us-gaap:ProductAndServiceOther


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value131313111114151312
Percentage of CostOfGoodsAndServicesSold100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax9.39.69.89.19.111.913.012.712.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductAndServiceOther130.50.0139.5142.8146.10.0188.1169.9181.3

us-gaap:Service


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value464747444020494331281715152312121118171717
Percentage of CostOfGoodsAndServicesSold334.7340.5352.0383.2368.1141.5319.6311.1258.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax31.032.634.434.733.716.941.639.433.130.719.019.519.330.016.317.616.927.227.127.729.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Service33.40.037.037.035.90.043.441.334.60.019.819.519.30.017.118.717.90.00.00.00.0

General And Administrative Expense

us-gaap:GeneralAndAdministrativeExpense

us-gaap:GeneralAndAdministrativeExpense


General
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value2627232225242220192014161110109.6168.9569.8147.8526.7476.8017.1326.8885.6576.0685.7944.6173.8933.8783.9245.5473.1252.792.3492.1362.072.0641.641.4811.6661.225
Percentage of GeneralAndAdministrativeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax17.619.117.417.621.220.119.018.720.321.715.820.314.613.013.213.313.014.812.310.711.312.413.011.112.713.311.29.810.211.016.910.19.38.27.87.88.26.86.48.46.6

Gross Profit

us-gaap:GrossProfit

us-gaap:GrossProfit


Gross
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value83767269636259585956545249494644
Percentage of GrossProfit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax57.855.856.257.252.652.654.661.063.163.466.567.162.666.263.563.8

Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value-43.65-44.857-39.924-38.276-41.685-49.952-46.791-40.676-34.117-27.895-23.659-21.352-15.264-13.12-17.678-3.999-3.405-3.103-1.2950.012-0.491-2.574-2.237-1.4690.3130.2621.0712.7020.68-0.233-1.2172.3143.2043.6682.8332.773141.7932.6010.8541.6262.0591.4961.9721.022
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-29.4-31.0-29.2-29.6-34.2-41.1-39.5-37.1-35.3-29.7-26.3-26.2-19.5-16.5-23.4-5.5-4.9-4.7-2.00.0-0.8-4.5-4.2-2.90.70.62.66.81.8-0.7-3.77.510.712.810.410.557.07.411.24.38.80.08.411.46.1

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxExpenseBenefit


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value0.2560.1770.3010.1370.2280.1480.280.2560.1480.2360.1120.130.0910.14270-3.453-1.236-0.1780.03-0.0150.037-1.498-0.5570.4230.7850.0790.6271.4110.6721.738-1.3060.8261.0652.0070.9131.0325.781-62.070.0150.022-0.3210.0480.00.0030.004
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.20.10.20.10.20.10.20.20.20.30.10.20.10.293.7-4.8-1.8-0.30.0-0.00.1-2.6-1.00.81.60.21.53.61.84.9-4.02.73.57.03.33.922.9-256.50.10.1-1.70.00.00.00.0

Income Taxes Paid

us-gaap:IncomeTaxesPaid

us-gaap:IncomeTaxesPaid


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value337000.0-206000.0355000.0241000.0165000.0215000.0358000.0143000.0218000.066000.040000.0123000.0127000.0-179000.043000.0105000.069000.0110000.064000.0199000.087000.04000.0142000.0247000.052000.0-22000.088000.08000.085000.0-52000.0203000.0120000.0156000.00
Percentage of IncomeTaxesPaid100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.2-0.10.30.20.10.20.30.10.20.10.00.20.2-0.20.10.10.10.20.10.30.10.00.30.50.1-0.10.20.00.2-0.10.60.40.50.0

Interest Expense Debt

us-gaap:InterestExpenseDebt us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:InterestExpenseDebt

eght:AggregateNotes, us-gaap:ConvertibleDebt


Interest
Period End2021-06-302020-12-312020-09-302020-06-302019-12-312019-09-302019-06-30
Value4.8464.714.6444.5783.9913.5853.531
Percentage of InterestExpenseDebt100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.33.43.63.83.43.33.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax eght:AggregateNotes us-gaap:ConvertibleDebt0.00.00.00.00.00.00.0

Interest Paid Net

us-gaap:InterestPaidNet

us-gaap:InterestPaidNet


Interest
Period End2021-03-312020-12-312020-03-312019-12-312019-03-312018-12-312018-03-312017-12-312017-03-312016-12-31
Value907000.00906000.00008000.012000.004000.0
Percentage of InterestPaidNet100.00.0100.00.00.00.0100.0100.00.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.60.00.70.00.00.00.00.00.00.0

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value-43.906-45.034-40.225-38.413-41.913-50.1-47.071-40.932-34.265-28.131-23.771-21.482-15.355-13.262-88.52-0.546-2.169-2.925-1.3250.027-0.528-1.076-1.68-1.892-0.4720.1830.4441.2910.008-1.9450.0892.2312.1391.6611.921.7418.617632.5860.8321.9472.0111.4961.9691.018
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-29.6-31.1-29.4-29.7-34.4-41.2-39.7-37.4-35.4-30.0-26.4-26.4-19.7-16.7-117.1-0.8-3.1-4.4-2.10.0-0.9-1.9-3.2-3.7-1.00.41.13.30.0-5.40.37.27.15.87.06.634.1263.911.14.210.50.08.411.36.0

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Net
Period End2021-06-302020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302018-12-312018-09-302018-06-30
Value-43.906-40.225-38.413-41.913-47.071-40.932-34.265-23.771-21.482-15.355
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-29.6-29.4-29.7-34.4-39.7-37.4-35.4-26.4-26.4-19.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.0

Nonoperating Income Expense

us-gaap:NonoperatingIncomeExpense

us-gaap:NonoperatingIncomeExpense


Nonoperating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value-4823000.0-4821000.0-4669000.0-5178000.0-3925000.0-3798000.0-3623000.0-2732000.0-1564000.0885000.0579000.0635000.0719000.0610000.0569000.0463000.02052000.0583000.0408000.0391000.0410000.0397000.0272000.0204000.0234000.0210000.0246000.0200000.0177000.0140000.0586000.01000.0
Percentage of NonoperatingIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-3.3-3.3-3.4-4.0-3.2-3.1-3.1-2.5-1.60.90.60.80.90.80.80.63.00.90.60.60.70.70.50.40.50.50.60.50.50.41.80.0

Operating Expenses

us-gaap:OperatingExpenses

us-gaap:OperatingExpenses


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value187184171162159167161147129122114107999393767470656360605552474340373736342826242423102220181616161515
Percentage of OperatingExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax126.2127.7125.8125.6131.0138.0136.4134.6133.7130.7127.0132.4127.0117.3124.1106.2107.9105.5102.7100.6101.5105.2104.7103.399.899.998.093.798.7101.0105.592.589.487.389.989.543.091.189.095.691.30.092.088.895.0

Operating Income Loss

us-gaap:OperatingIncomeLoss

us-gaap:OperatingIncomeLoss


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value-38.827-40.036-35.255-33.098-37.76-46.154-43.168-37.944-32.553-28.78-24.238-21.987-15.983-13.73-18.247-4.462-5.457-3.686-1.703-0.379-0.901-2.971-2.509-1.6730.0790.0520.8252.5020.503-0.373-1.8032.3133.1893.6532.762.764142.1562.5520.8651.6062.0331.4181.9510.842
Percentage of OperatingIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-26.2-27.7-25.8-25.6-31.0-38.0-36.4-34.6-33.7-30.7-27.0-27.0-20.5-17.3-24.1-6.2-7.9-5.5-2.7-0.6-1.5-5.2-4.7-3.30.20.12.06.31.3-1.0-5.57.510.612.710.110.557.08.911.04.48.70.08.011.25.0

Research And Development Expense

us-gaap:ResearchAndDevelopmentExpense

us-gaap:ResearchAndDevelopmentExpense


Research
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value25252321212019191818161313108.5278.3117.9437.1427.0956.5056.716.116.4046.4465.084.3483.8683.4963.4063.3323.3252.642.3362.1742.1172.031.8261.8431.9551.541.4071.1911.1311.2711.226
Percentage of ResearchAndDevelopmentExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax17.117.517.316.717.616.616.817.719.019.318.817.116.812.611.311.511.510.711.110.311.210.712.012.710.610.09.38.89.09.310.28.67.87.67.77.77.27.68.47.87.60.06.47.37.3

Revenue From Contract With Customer Excluding Assessed Tax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value14814413612912112111810996938981787975726966636360575350474341393735323030282726252423191818171716
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService

us-gaap:ProductAndServiceOther


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value10109.5788.1917.6248.9478.2048.1726.836
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.17.67.06.36.37.46.97.57.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.17.67.06.36.37.46.97.57.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductAndServiceOther100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Service


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value137133127120114103113104928985817875716865
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax92.992.493.093.793.785.395.895.495.595.095.6100.0100.094.995.194.094.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax92.992.493.093.793.785.395.895.495.595.095.6100.0100.094.995.194.094.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Service100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:StatementGeographical

country:US


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value10310298969391908583807774
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax69.970.872.474.476.675.376.178.086.186.186.391.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax69.970.872.474.476.675.376.178.086.186.186.391.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax country:US100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NonUs


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value444237332829282413131211
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax30.129.227.625.623.424.723.922.013.913.913.713.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax30.129.227.625.623.424.723.922.013.913.913.713.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:NonUs100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Revenues

us-gaap:Revenues

us-gaap:Revenues


Revenues
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value14814413612912112111810996938985837975726966636360575350474341393735323030282726252423191818171716
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0105.3106.5100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Selling And Marketing Expense

us-gaap:SellingAndMarketingExpense

us-gaap:SellingAndMarketingExpense


Selling
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value75706361606563575349605553524841413835333131272623212019191816131313111110109.8169.0768.184
Percentage of SellingAndMarketingExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax51.248.946.847.549.453.953.252.955.452.867.568.868.266.764.656.859.557.556.053.352.854.551.952.549.749.449.749.150.550.449.044.643.745.542.641.841.745.142.245.844.2

Assets

us-gaap:Assets

us-gaap:Assets


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value67567869268768870073266655854630430931527727435736033332332231531330329830729530830730329929616115715214814414013066612926
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Liabilities

us-gaap:Liabilities

us-gaap:Liabilities


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value5185175255125095095134273282967670635854504845414038383430302322222221211616151413131212131110
Percentage of Liabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets76.876.375.874.674.072.870.064.258.854.425.122.720.221.119.814.213.413.612.812.612.312.211.310.310.07.97.27.47.47.07.110.210.210.210.09.59.39.419.121.937.840.3

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:LiabilitiesAndStockholdersEquity


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value67567869268768870073266655854630430931527727435736033332332231531330329830729530830730329929616115715214814414013066612926
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-03-312009-03-31
Value15616016717417819021923823024922723925121822030631128828228127627526926727627228528428027827514514113713313012711853481815139.03
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets23.223.724.225.426.027.230.035.841.245.674.977.379.878.980.285.886.686.487.287.487.787.888.789.790.092.192.892.692.693.092.989.889.889.890.090.590.790.680.978.162.259.70.00.0

us-gaap:StockholdersEquity us-gaap:CumulativeEffectPeriodOfAdoption, us-gaap:StatementEquityComponents

srt:CumulativeEffectPeriodOfAdoptionAdjustment, us-gaap:RetainedEarnings


Stockholders
Period End2021-03-312020-03-312018-03-31
Value-2.8-2.839
Percentage of StockholdersEquity-1.7-1.518.2
Percentage of Assets-0.4-0.414.4
Percentage of Assets srt:CumulativeEffectPeriodOfAdoptionAdjustment us-gaap:RetainedEarnings0.00.00.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-03-312016-03-312015-03-312014-03-312013-03-312012-03-312011-03-312010-03-312009-03-31
Value-3.943-4.193-3.503-7.967-10.869-12.176-6.565-11.14-7.884-7.353-8.084-7.434-7.204-5.645-9.642-4.184-2.1090.43-0.036-0.058-0.0730.00.0
Percentage of StockholdersEquity-2.5-2.6-2.1-4.6-6.1-6.4-3.0-4.7-3.4-2.9-3.5-3.1-2.9-2.6-3.3-1.5-0.80.2-0.0-0.0-0.50.00.0
Percentage of Assets-0.6-0.6-0.5-1.2-1.6-1.7-0.9-1.7-1.4-1.3-2.7-2.4-2.3-2.0-2.9-1.3-0.70.1-0.0-0.0-0.30.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-03-312016-03-312015-03-312014-03-312013-03-312012-03-312011-03-312010-03-312009-03-31
Value795755716688657625598575522506457445435425412389378384246241208212211
Percentage of StockholdersEquity507.4470.8428.2394.4367.3327.9272.7240.9227.0203.3201.1186.0173.1194.6143.0141.4139.2138.2179.6203.91312.81594.62344.3
Percentage of Assets117.8111.4103.5100.195.589.381.786.393.692.8150.6143.8138.1153.6123.6124.2128.2128.4161.3184.8783.20.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-03-312016-03-312015-03-312014-03-312013-03-312012-03-312011-03-312010-03-312009-03-31
Value0.1110.1090.1070.1060.1040.1030.1010.10.0970.0960.0950.0940.0930.0930.0910.0890.0880.0880.0720.0710.0620.0630.063
Percentage of StockholdersEquity0.10.10.10.10.10.10.00.00.00.00.00.00.00.00.00.00.00.00.10.10.40.50.7
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.10.20.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-03-312016-03-312015-03-312014-03-312013-03-312012-03-312011-03-312010-03-312009-03-31
Value-634.961-591.055-546.021-505.796-467.383-422.67-372.57-325.499-284.567-250.302-222.171-198.4-176.918-201.464-114.61-109.859-104.739-106.665-109.179-123.118-192.346-198.84-202.719
Percentage of StockholdersEquity-405.0-368.2-326.2-289.9-261.3-221.6-169.7-136.3-123.6-100.4-97.6-82.9-70.2-92.1-39.7-39.9-38.5-38.3-79.7-103.9-1212.7-1495.0-2245.0
Percentage of Assets-94.0-87.1-78.8-73.6-67.9-60.3-50.9-48.8-51.0-45.8-73.1-64.1-56.1-72.7-34.3-35.0-35.4-35.6-71.5-94.2-723.50.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Assets Current

us-gaap:AssetsCurrent

us-gaap:AssetsCurrent


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value2662762742682672773022673573971611751861781891942021971921891841851741681741912001981921161867468635147443525222222
Percentage of AssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets39.440.839.639.138.939.641.340.163.972.753.156.659.064.468.854.356.159.159.458.858.659.357.656.556.764.865.064.663.639.163.046.043.341.734.832.531.727.438.136.975.783.0

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashAndCashEquivalentsAtCarryingValue


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-03-31
Value10911210612111613718416226927628243431313453413332273323282953525655591725955504438362220171616181718181716
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets16.216.615.417.717.019.625.224.348.250.69.38.011.011.411.69.714.812.310.310.08.710.77.99.69.518.017.118.218.219.858.036.735.633.029.926.325.817.230.027.957.962.00.00.00.00.00.00.0

us-gaap:CashAndCashEquivalentsAtCarryingValue us-gaap:BalanceSheetLocation, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FinancialInstrument

us-gaap:CashAndCashEquivalents, us-gaap:FairValueInputsLevel1, us-gaap:MoneyMarketFunds


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value6767719488110
Percentage of CashAndCashEquivalentsAtCarryingValue61.460.266.677.476.080.6
Percentage of Assets9.910.010.313.712.915.8
Percentage of Assets us-gaap:CashAndCashEquivalents us-gaap:FairValueInputsLevel1 us-gaap:MoneyMarketFunds0.00.00.00.00.00.0

us-gaap:CashAndCashEquivalents, us-gaap:FairValueInputsLevel1, us-gaap:MunicipalBonds


Cash
Period End2021-06-30
Value0.7
Percentage of CashAndCashEquivalentsAtCarryingValue0.6
Percentage of Assets0.1
Percentage of Assets us-gaap:CashAndCashEquivalents us-gaap:FairValueInputsLevel1 us-gaap:MunicipalBonds0.0

us-gaap:CashAndCashEquivalentsAtCarryingValue us-gaap:BalanceSheetLocation, us-gaap:FinancialInstrument

eght:RestrictedCash, us-gaap:Cash


Cash
Period End2020-12-312020-09-302020-06-302020-03-31
Value6.9176.9171010
Percentage of CashAndCashEquivalentsAtCarryingValue6.55.78.97.6
Percentage of Assets1.01.01.51.5
Percentage of Assets eght:RestrictedCash us-gaap:Cash0.00.00.00.0

us-gaap:CashAndCashEquivalents, us-gaap:Cash


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value393933252321
Percentage of CashAndCashEquivalentsAtCarryingValue36.134.731.621.120.315.3
Percentage of Assets5.85.84.93.73.43.0
Percentage of Assets us-gaap:CashAndCashEquivalents us-gaap:Cash0.00.00.00.00.00.0

us-gaap:CashAndCashEquivalentsAtCarryingValue us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FinancialInstrument

us-gaap:FairValueInputsLevel1, us-gaap:MoneyMarketFunds


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value6767719488110
Percentage of CashAndCashEquivalentsAtCarryingValue61.460.266.677.476.080.6
Percentage of Assets9.910.010.313.712.915.8
Percentage of Assets us-gaap:FairValueInputsLevel1 us-gaap:MoneyMarketFunds0.00.00.00.00.00.0

us-gaap:FairValueInputsLevel1, us-gaap:MunicipalBonds


Cash
Period End2021-06-30
Value0.7
Percentage of CashAndCashEquivalentsAtCarryingValue0.6
Percentage of Assets0.1
Percentage of Assets us-gaap:FairValueInputsLevel1 us-gaap:MunicipalBonds0.0

us-gaap:CashAndCashEquivalentsAtCarryingValue us-gaap:FinancialInstrument

us-gaap:Cash


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value393940323431
Percentage of CashAndCashEquivalentsAtCarryingValue36.134.738.026.829.222.8
Percentage of Assets5.85.85.94.74.94.5
Percentage of Assets us-gaap:Cash0.00.00.00.00.00.0

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-03-312016-03-31
Value11712112213713515620318127728436324239314133
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets17.517.917.720.019.722.327.827.249.652.112.010.613.514.411.612.310.7

Short Term Investments

us-gaap:ShortTermInvestments

us-gaap:ShortTermInvestments


Short
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value31404131403330292769104109120129132124133139137139129130120127123135129126471.9011.9091.8991.9641.9652.0091.9681.9421.9121.9041.9421.927
Percentage of ShortTermInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.65.96.04.65.94.84.14.44.912.833.734.843.547.037.034.640.143.042.744.241.243.140.341.641.943.942.141.915.80.61.21.21.31.31.41.41.52.93.16.67.2

Accounts Receivable Net Current

us-gaap:AccountsReceivableNetCurrent

us-gaap:AccountsReceivableNetCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value495150424037373023201918171617151414131111119.927108.0416.6427.2337.2665.9475.5035.1694.6863.5953.883.6054.1532.8372.2791.9171.7961.070.863
Percentage of AccountsReceivableNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets7.47.57.36.35.95.45.14.64.23.76.36.15.65.96.54.24.04.34.03.63.73.53.33.42.62.22.32.42.01.81.72.92.32.52.42.92.01.72.92.93.73.2

Other Assets Current

us-gaap:OtherAssetsCurrent

us-gaap:OtherAssetsCurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value363439393535252220151313111010119.8186.5745.5516.6675.0966.0785.0684.3234.0342.2742.5212.6562.2011.9511.9994.1080.9550.7320.7360.9330.810.8060.8191.0580.5360.584
Percentage of OtherAssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets5.35.05.75.75.15.13.53.43.72.84.34.53.53.63.73.32.72.01.72.11.61.91.71.41.30.80.80.90.70.70.72.50.60.50.50.60.60.61.21.71.82.2

Property Plant And Equipment Gross

us-gaap:PropertyPlantAndEquipmentGross

us-gaap:PropertyPlantAndEquipmentGross


Property
Period End2021-03-312020-03-312019-03-312018-03-312017-03-312016-03-312015-03-312014-03-312013-03-312012-03-31
Value18516810269393226171510
Percentage of PropertyPlantAndEquipmentGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets27.324.018.725.011.810.38.95.79.88.3

us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType

eght:SoftwareLicense


Property
Period End2021-03-312020-03-312019-03-312018-03-31
Value7.7981.5699.7138.663
Percentage of PropertyPlantAndEquipmentGross4.20.99.512.5
Percentage of Assets1.10.21.83.1
Percentage of Assets eght:SoftwareLicense0.00.00.00.0

us-gaap:ComputerEquipment


Property
Period End2021-03-312020-03-312019-03-312018-03-31
Value40383429
Percentage of PropertyPlantAndEquipmentGross22.122.633.943.0
Percentage of Assets6.05.46.410.7
Percentage of Assets us-gaap:ComputerEquipment0.00.00.00.0

us-gaap:ConstructionInProgress


Property
Period End2021-03-312020-03-312019-03-312018-03-31
Value1013102.394
Percentage of PropertyPlantAndEquipmentGross5.78.29.93.5
Percentage of Assets1.62.01.80.9
Percentage of Assets us-gaap:ConstructionInProgress0.00.00.00.0

us-gaap:FurnitureAndFixtures


Property
Period End2021-03-312020-03-312019-03-312018-03-31
Value5.5655.4852.3241.637
Percentage of PropertyPlantAndEquipmentGross3.03.32.32.4
Percentage of Assets0.80.80.40.6
Percentage of Assets us-gaap:FurnitureAndFixtures0.00.00.00.0

us-gaap:LeaseholdImprovements


Property
Period End2021-03-312020-03-312019-03-312018-03-31
Value28316.2866.573
Percentage of PropertyPlantAndEquipmentGross15.518.86.19.5
Percentage of Assets4.24.51.22.4
Percentage of Assets us-gaap:LeaseholdImprovements0.00.00.00.0

us-gaap:SoftwareDevelopment


Property
Period End2021-03-312020-03-312019-03-312018-03-31
Value91773920
Percentage of PropertyPlantAndEquipmentGross49.546.138.329.1
Percentage of Assets13.511.17.27.3
Percentage of Assets us-gaap:SoftwareDevelopment0.00.00.00.0

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment


Accumulated
Period End2021-03-312020-03-312019-03-312018-03-312017-03-312016-03-312015-03-312014-03-312013-03-312012-03-31
Value927349332219169.3368.356.988
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets13.610.69.012.16.96.45.43.15.55.3

Amortization Of Intangible Assets

us-gaap:AmortizationOfIntangibleAssets

us-gaap:AmortizationOfIntangibleAssets


Amortization
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value1285000.01296000.01535000.01827000.02228000.02693000.02322000.02303000.01524000.01624000.01694000.01425000.01432000.01038000.01180000.01293000.01522000.01021000.0873000.0908000.0960000.0992000.01002000.01017000.0546000.0545000.0554000.0566000.0567000.0569000.0403000.0331000.0340000.0357000.0357000.0357000.0357000.0357000.0357000.048000.026000.0
Percentage of AmortizationOfIntangibleAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Property Plant And Equipment Net

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:PropertyPlantAndEquipmentNet


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value9093949696948964575247423835322926161515131211111110109.5558.3397.7117.4856.3356.6366.6736.9227.2255.243.823.4833.2522.3932.398
Percentage of PropertyPlantAndEquipmentNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets13.413.713.614.014.013.512.39.710.39.715.713.712.112.911.88.37.54.94.74.84.13.93.93.83.83.53.33.12.82.62.53.94.24.44.65.03.72.95.25.38.29.0

us-gaap:PropertyPlantAndEquipmentNet us-gaap:StatementGeographical

country:US


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-03-31
Value85878990898745
Percentage of PropertyPlantAndEquipmentNet94.794.594.394.193.692.986.4
Percentage of Assets12.713.012.913.213.112.58.4
Percentage of Assets country:US0.00.00.00.00.00.00.0

us-gaap:NonUs


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-03-31
Value4.8485.1315.4175.6926.1586.7097.196
Percentage of PropertyPlantAndEquipmentNet5.35.55.75.96.47.113.6
Percentage of Assets0.70.80.80.80.91.01.3
Percentage of Assets us-gaap:NonUs0.00.00.00.00.00.00.0

Long Term Investments

us-gaap:LongTermInvestments

us-gaap:LongTermInvestments


Long
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312016-03-312015-03-312014-12-312014-09-302014-06-302014-03-312013-03-31
Value123.8786.1819.965162020210.00.00.00.00.00.0720.0
Percentage of LongTermInvestments100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.00.00.0100.00.0
Percentage of Assets1.90.60.91.42.32.73.13.90.00.00.00.00.00.024.10.0

Goodwill

us-gaap:Goodwill

us-gaap:Goodwill


Goodwill
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value13113113213012812813113139393939394039474646444545474848483637383838382325252525252525222.4661.21
Percentage of Goodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets19.519.419.118.918.718.317.919.87.17.313.012.812.614.414.413.313.013.813.714.114.615.115.916.315.612.512.212.412.812.912.914.816.016.516.917.417.919.237.836.78.44.6

Intangible Assets Net Excluding Goodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill


Intangible
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value151718192124262810111312131112141517161819212325281213131415159.5239.854101010111111121.2340.214
Percentage of IntangibleAssetsNetExcludingGoodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.32.52.72.93.23.43.64.31.82.14.43.94.34.34.64.24.45.15.25.76.26.87.68.49.34.14.24.54.85.05.35.96.36.77.17.58.08.918.020.04.20.8

Finite Lived Intangible Assets Net

us-gaap:FiniteLivedIntangibleAssetsNet

us-gaap:FiniteLivedIntangibleAssetsNet


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value151718192124262810111312131112141517161819212325281213131415159.5239.8541010101111
Percentage of FiniteLivedIntangibleAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.32.52.72.93.23.43.64.31.82.14.43.94.34.34.64.24.45.15.25.76.26.87.68.49.34.14.24.54.85.05.35.96.36.77.17.58.08.9

us-gaap:FiniteLivedIntangibleAssetsNet us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:CustomerRelationships


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value4.4074.6284.8485.1895.5785.9976.3046.7591.1421.3871.5751.8252.0682.412.5472.7523.0123.2323.5254.0384.5015.1465.656.1546.7765.9666.5327.127.7577.9768.2811.9922.1172.2512.4022.5532.7042.855
Percentage of FiniteLivedIntangibleAssetsNet27.827.026.326.025.625.023.823.811.311.911.915.015.220.220.118.418.919.021.122.223.024.024.524.523.848.750.151.552.952.853.120.921.522.122.823.424.024.6
Percentage of Assets0.70.70.70.80.80.90.91.00.20.30.50.60.70.90.90.80.81.01.11.31.41.61.92.12.22.02.12.32.62.72.81.21.31.51.61.81.92.2
Percentage of Assets us-gaap:CustomerRelationships0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:PatentedTechnology


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value11121314161719208.983101110119.1679.654101111111212141415185.3375.5435.7495.9566.1626.3686.5746.786.9867.1927.3987.6047.81
Percentage of FiniteLivedIntangibleAssetsNet72.273.073.774.074.473.472.573.188.788.187.483.482.776.776.271.770.568.566.365.965.665.363.163.266.243.542.541.640.640.840.869.068.868.568.267.867.567.2
Percentage of Assets1.71.82.02.12.42.52.63.11.61.93.83.33.63.33.53.03.13.53.43.74.14.54.85.36.11.81.81.92.02.12.14.14.34.64.85.15.46.0
Percentage of Assets us-gaap:PatentedTechnology0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Operating Lease Right Of Use Asset

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OperatingLeaseRightOfUseAsset


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value636670727678777818
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets9.49.810.210.611.111.310.511.73.2

Other Assets Noncurrent

us-gaap:OtherAssetsNoncurrent

us-gaap:OtherAssetsNoncurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value20202020201921189.4522.9653.0652.9273.0272.7670.9670.4170.4328.0846.6455.4153.7513.1042.3561.6871.4631.4641.3071.1441.0741.1851.1011.0660.9830.5720.3950.4090.4220.2780.6470.661.010.686
Percentage of OtherAssetsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.03.03.03.02.92.82.92.71.70.51.00.91.01.00.40.10.12.42.11.71.21.00.80.60.50.50.40.40.40.40.40.70.60.40.30.30.30.21.01.13.52.6

Accounts Payable Current

us-gaap:AccountsPayableCurrent

us-gaap:AccountsPayableCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value333132353940504232322827262321202015121412109.9179.8529.7367.7757.2728.8988.2176.7896.4975.9085.55.6445.175.0656.3755.4764.4814.7193.4484.551
Percentage of AccountsPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.94.64.75.15.75.76.96.35.95.99.38.98.58.67.95.65.74.73.94.44.03.53.33.33.22.62.42.92.72.32.23.63.53.73.53.54.54.26.77.711.817.1

Accrued Income Taxes Current

us-gaap:AccruedIncomeTaxesCurrent

us-gaap:AccruedIncomeTaxesCurrent


Accrued
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value111214119.22101112111314127.936.3675.4475.2866.735.3545.0835.4245.395.24.7533.8193.4372.82.8792.572.4532.3232.1091.7462.1041.9121.9671.6771.5841.4721.4321.7011.9511.828
Percentage of AccruedIncomeTaxesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.71.82.11.71.31.51.61.82.12.54.84.02.52.32.01.51.91.61.61.71.71.71.61.31.10.90.90.80.80.80.71.11.31.31.31.21.11.12.12.86.76.9

Contract With Customer Liability Current

us-gaap:ContractWithCustomerLiabilityCurrent

us-gaap:ContractWithCustomerLiabilityCurrent


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-03-31
Value2120189.4528.3527.1057.2164.274.0883.3363.5232.559
Percentage of ContractWithCustomerLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.33.12.61.41.21.01.00.60.70.61.20.9

Liabilities Current

us-gaap:LiabilitiesCurrent

us-gaap:LiabilitiesCurrent


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value12112112711612112312110988747166605653494643383735343026252120201918191414131311121212131010
Percentage of LiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets17.917.918.416.917.717.616.616.415.913.723.421.419.220.319.413.812.913.011.911.611.211.110.08.98.47.46.56.66.56.16.69.29.19.08.88.29.29.318.521.336.340.2

Operating Lease Liability Current

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OperatingLeaseLiabilityCurrent


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value1212129.4989.9895.8754.325.2927.063
Percentage of OperatingLeaseLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.91.91.81.41.50.80.60.81.3

Other Accrued Liabilities Current

us-gaap:OtherAccruedLiabilitiesCurrent

us-gaap:OtherAccruedLiabilitiesCurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value1314202126372319116.795.5985.26.6886.0266.7235.6264.8645.3833.6273.0333.2264.083.7433.3133.3542.9651.3751.3211.4921.9091.7110.7960.9050.8620.7910.7610.8250.8841.7322.3722.2271.386
Percentage of OtherAccruedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.12.12.93.23.95.33.22.92.01.21.81.72.12.22.41.61.41.61.10.91.01.31.21.11.11.00.40.40.50.60.60.50.60.60.50.50.60.72.63.87.65.2

Long Term Debt

us-gaap:LongTermDebt us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:LongTermDebt

eght:AggregateNotes, us-gaap:ConvertibleDebt


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-03-31
Value312308304299295291287216
Percentage of LongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets46.345.543.943.643.041.639.239.5
Percentage of Assets eght:AggregateNotes us-gaap:ConvertibleDebt0.00.00.00.00.00.00.00.0

eght:ConvertibleSeniorNotes, us-gaap:ConvertibleDebt


Long
Period End2021-03-312020-03-312019-09-302019-06-302019-03-31
Value308291222219216
Percentage of LongTermDebt100.0100.00.00.0100.0
Percentage of Assets45.541.633.439.239.5
Percentage of Assets eght:ConvertibleSeniorNotes us-gaap:ConvertibleDebt0.00.00.00.00.0

Long Term Debt Noncurrent

us-gaap:LongTermDebtNoncurrent

us-gaap:LongTermDebtNoncurrent


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-03-31
Value3123083042992952912872222192160.0
Percentage of LongTermDebtNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets46.345.543.943.643.041.639.233.439.239.50.0

Other Liabilities Noncurrent

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:OtherLiabilitiesNoncurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value5.4295.6368.1649.0574.1412.49617218.266.2225.0634.0072.9872.1531.161.5641.9041.853.0013.3213.1073.2583.7224.0464.7091.3521.4251.4941.5551.6191.6721.7171.7671.8431.8941.820.0390.0680.40.4090.4280.039
Percentage of OtherLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.80.81.21.30.60.42.43.21.51.11.71.30.90.80.40.40.50.60.91.01.01.01.21.41.50.50.50.50.50.50.61.11.11.21.31.30.00.10.60.71.50.1

Operating Lease Liability Noncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value798285878792867512
Percentage of OperatingLeaseLiabilityNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets11.812.212.312.712.813.211.811.32.2

Lessee Operating Lease Liability Payments Due Year Two

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value11151515
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearTwo100.0100.0100.0100.0
Percentage of Assets1.82.22.22.2

Lessee Operating Lease Liability Payments Due Year Three

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value11111111
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearThree100.0100.0100.0100.0
Percentage of Assets1.71.71.71.7

Lessee Operating Lease Liability Payments Due Year Four

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value10111111
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFour100.0100.0100.0100.0
Percentage of Assets1.61.71.71.7

Lessee Operating Lease Liability Payments Due Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive


Lessee
Period End2021-03-31
Value10
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFive100.0
Percentage of Assets1.5

Lessee Operating Lease Liability Payments Due After Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive


Lessee
Period End2021-03-31
Value47
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive100.0
Percentage of Assets7.0

Operating Lease Liability

us-gaap:OperatingLeaseLiability

us-gaap:OperatingLeaseLiability


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value929598969798908019
Percentage of OperatingLeaseLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets13.614.114.214.114.214.012.412.13.4

Lessee Operating Lease Liability Payments Due

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value108113116118
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue100.0100.0100.0100.0
Percentage of Assets16.116.716.817.2

Lessee Operating Lease Liability Undiscounted Excess Amount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value16171819
Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount100.0100.0100.0100.0
Percentage of Assets2.52.62.72.8

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-03-312009-03-31
Value15616016717417819021923823024922723925121822030631128828228127627526926727627228528428027827514514113713313012711853481815139.03
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets23.223.724.225.426.027.230.035.841.245.674.977.379.878.980.285.886.686.487.287.487.787.888.789.790.092.192.892.692.693.092.989.889.889.890.090.590.790.680.978.162.259.70.00.0

us-gaap:StockholdersEquity us-gaap:CumulativeEffectPeriodOfAdoption, us-gaap:StatementEquityComponents

srt:CumulativeEffectPeriodOfAdoptionAdjustment, us-gaap:RetainedEarnings


Stockholders
Period End2021-03-312020-03-312018-03-31
Value-2.8-2.839
Percentage of StockholdersEquity-1.7-1.518.2
Percentage of Assets-0.4-0.414.4
Percentage of Assets srt:CumulativeEffectPeriodOfAdoptionAdjustment us-gaap:RetainedEarnings0.00.00.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-03-312016-03-312015-03-312014-03-312013-03-312012-03-312011-03-312010-03-312009-03-31
Value-3.943-4.193-3.503-7.967-10.869-12.176-6.565-11.14-7.884-7.353-8.084-7.434-7.204-5.645-9.642-4.184-2.1090.43-0.036-0.058-0.0730.00.0
Percentage of StockholdersEquity-2.5-2.6-2.1-4.6-6.1-6.4-3.0-4.7-3.4-2.9-3.5-3.1-2.9-2.6-3.3-1.5-0.80.2-0.0-0.0-0.50.00.0
Percentage of Assets-0.6-0.6-0.5-1.2-1.6-1.7-0.9-1.7-1.4-1.3-2.7-2.4-2.3-2.0-2.9-1.3-0.70.1-0.0-0.0-0.30.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-03-312016-03-312015-03-312014-03-312013-03-312012-03-312011-03-312010-03-312009-03-31
Value795755716688657625598575522506457445435425412389378384246241208212211
Percentage of StockholdersEquity507.4470.8428.2394.4367.3327.9272.7240.9227.0203.3201.1186.0173.1194.6143.0141.4139.2138.2179.6203.91312.81594.62344.3
Percentage of Assets117.8111.4103.5100.195.589.381.786.393.692.8150.6143.8138.1153.6123.6124.2128.2128.4161.3184.8783.20.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-03-312016-03-312015-03-312014-03-312013-03-312012-03-312011-03-312010-03-312009-03-31
Value0.1110.1090.1070.1060.1040.1030.1010.10.0970.0960.0950.0940.0930.0930.0910.0890.0880.0880.0720.0710.0620.0630.063
Percentage of StockholdersEquity0.10.10.10.10.10.10.00.00.00.00.00.00.00.00.00.00.00.00.10.10.40.50.7
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.10.20.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-03-312016-03-312015-03-312014-03-312013-03-312012-03-312011-03-312010-03-312009-03-31
Value-634.961-591.055-546.021-505.796-467.383-422.67-372.57-325.499-284.567-250.302-222.171-198.4-176.918-201.464-114.61-109.859-104.739-106.665-109.179-123.118-192.346-198.84-202.719
Percentage of StockholdersEquity-405.0-368.2-326.2-289.9-261.3-221.6-169.7-136.3-123.6-100.4-97.6-82.9-70.2-92.1-39.7-39.9-38.5-38.3-79.7-103.9-1212.7-1495.0-2245.0
Percentage of Assets-94.0-87.1-78.8-73.6-67.9-60.3-50.9-48.8-51.0-45.8-73.1-64.1-56.1-72.7-34.3-35.0-35.4-35.6-71.5-94.2-723.50.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value111000.0109000.0107000.0106000.0104000.0103000.0101000.0100000.097000.096000.096000.095000.092000.093000.092000.092000.091000.091000.090000.090000.089000.089000.088000.087000.088000.088000.090000.089000.089000.088000.088000.073000.073000.072000.072000.072000.071000.071000.062000.062000.062000.062000.0
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.10.10.10.10.20.2

Additional Paid In Capital

us-gaap:AdditionalPaidInCapital

us-gaap:AdditionalPaidInCapital


Additional
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value795755716688657625598575522506457445435425414412418412404399394389381376382378391389386384379250248246244243242241240237208208
Percentage of AdditionalPaidInCapital100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets117.8111.4103.5100.195.589.381.786.393.692.8150.6143.8138.1153.6150.9115.4116.3123.6124.8124.2124.9124.2125.6126.2124.5128.2127.2126.8127.4128.4128.1154.5157.8161.3164.3168.4172.1184.8361.6385.5712.7783.2

Retained Earnings Accumulated Deficit

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:RetainedEarningsAccumulatedDeficit


Retained
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value-634.961-591.055-546.021-505.796-467.383-422.67-372.57-325.499-284.567-250.302-222.17-198.4-176.918-201.464-188.202-99.681-99.135-114.61-111.685-110.36-110.387-109.859-108.783-107.103-105.211-104.739-104.922-105.366-106.657-106.665-104.72-104.809-107.04-109.179-110.84-112.76-114.501-123.118-186.981-189.567-190.399-192.346
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-94.0-87.1-78.8-73.6-67.9-60.3-50.9-48.8-51.0-45.8-73.1-64.1-56.1-72.7-68.5-27.9-27.5-34.3-34.5-34.3-35.0-35.0-35.8-35.9-34.3-35.4-34.1-34.3-35.2-35.6-35.3-64.7-68.1-71.5-74.4-77.9-81.4-94.2-280.7-307.4-650.5-723.5

Accumulated Other Comprehensive Income Loss Net Of Tax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value-3943000.0-4193000.0-3503000.0-7967000.0-10869000.0-12176000.0-6565000.0-11140000.0-7884000.0-7353000.0-8085000.0-7435000.0-7204000.0-5645000.0-6449000.0-6434000.0-7824000.0-9642000.0-10322000.0-8361000.0-6822000.0-4184000.0-3333000.0-2117000.0-679000.0-2109000.0-1153000.0-26000.0969000.0430000.0227000.0-91000.0-101000.0-36000.0-35000.09000.0-32000.0-58000.0-88000.0-96000.0-58000.0-73000.0
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-0.6-0.6-0.5-1.2-1.6-1.7-0.9-1.7-1.4-1.3-2.7-2.4-2.3-2.0-2.3-1.8-2.2-2.9-3.2-2.6-2.2-1.3-1.1-0.7-0.2-0.7-0.4-0.00.30.10.1-0.1-0.1-0.0-0.00.0-0.0-0.0-0.1-0.2-0.2-0.3

Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue


Adjustments
Period End2021-06-302020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302018-12-312018-09-302018-06-30
Value36272623191714139.8299.304
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Adjustments
Period End2021-06-302020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302018-12-312018-09-302018-06-30
Value36272623191714139.8299.304
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value4.0320.799-1.797-3.818-9.25-31.069-18.321-24.006-20.509-8.195-2.123-5.3390.7892.6634.653.3442.5623.7785.2335.7976.6284.437142.8033.1661.1022.141.6152.682.2012.093
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.70.6-1.3-3.0-7.6-25.6-15.5-21.9-21.2-8.7-2.4-6.61.03.412.39.37.812.317.420.224.216.859.111.613.65.611.68.915.112.712.4

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value-11.146-9.179-15.6760.434-11.9-21.458-24.912-71.095116.2084.931-2.0871.821.937-8.868-118.322-16.227-1.124-0.794-0.623-0.515-3.682-1.048-0.529-0.532-1.024-0.9-0.162-2.81-0.45-1.942
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-7.5-6.3-11.50.3-9.8-17.7-21.0-64.911.66.65.5-2.62.32.4-23.4-330.6-49.6-3.6-2.6-2.2-1.9-14.0-4.2-2.2-2.3-5.2-4.9-0.9-15.8-2.6-11.5

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value3.4357.2771.3444.705-0.1346.25365-0.8861.3672500.958-2.4890.5013.399
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.35.01.03.6-0.15.155.1-0.81.4266.91.1-3.10.64.3

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-3.243-1.263-14.9711.699-20.704-47.422-95.889-7.5582483.648-9.882.8548.034
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-2.2-0.9-11.01.3-17.0-39.019.0-87.6-7.8264.84.1-12.13.710.1

Amortization Of Financing Costs

us-gaap:AmortizationOfFinancingCosts us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:AmortizationOfFinancingCosts

eght:AggregateNotes, us-gaap:ConvertibleDebt


Amortization
Period End2021-06-302020-12-312020-09-302020-06-302019-12-312019-09-302019-06-30
Value61000.059000.058000.057000.040000.027000.026000.0
Percentage of AmortizationOfFinancingCosts100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Accounts Receivable

us-gaap:IncreaseDecreaseInAccountsReceivable

us-gaap:IncreaseDecreaseInAccountsReceivable


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value-0.9241.5926.9872.8623.4283.9616.213-1.2023.7651.4280.6181.851.497-0.9032.1221.0360.1471.5321.4080.8161.0431.4010.1622.3640.612-0.5330.1791.4810.4020.471-0.0751.311-0.1320.471-0.351.4240.6260.4170.2040.693-0.2550.127-0.0370.415-0.147
Percentage of IncreaseDecreaseInAccountsReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value4.0320.799-1.797-3.818-9.25-31.069-18.321-24.006-20.509-8.195-2.123-5.3390.7892.6634.653.3442.5623.7785.2335.7976.6284.437142.8033.1661.1022.141.6152.682.2012.093
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.70.6-1.3-3.0-7.6-25.6-15.5-21.9-21.2-8.7-2.4-6.61.03.412.39.37.812.317.420.224.216.859.111.613.65.611.68.915.112.712.4

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value-43.906-45.034-40.225-38.413-41.913-50.1-47.071-40.932-34.265-28.131-23.771-21.482-15.355-13.262-88.52-0.546-2.169-2.925-1.3250.027-0.528-1.076-1.68-1.892-0.4720.1830.4441.2910.008-1.9450.0892.2312.1391.6611.921.7418.617632.5860.8321.9472.0111.4961.9691.018
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-29.6-31.1-29.4-29.7-34.4-41.2-39.7-37.4-35.4-30.0-26.4-26.4-19.7-16.7-117.1-0.8-3.1-4.4-2.10.0-0.9-1.9-3.2-3.7-1.00.41.13.30.0-5.40.37.27.15.87.06.634.1263.911.14.210.511.18.411.36.0

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Net
Period End2021-06-302020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302018-12-312018-09-302018-06-30
Value-43.906-40.225-38.413-41.913-47.071-40.932-34.265-23.771-21.482-15.355
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-29.6-29.4-29.7-34.4-39.7-37.4-35.4-26.4-26.4-19.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.0

Share Based Compensation

us-gaap:ShareBasedCompensation

us-gaap:ShareBasedCompensation


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value3632262522201917131212108.9118.0388.136.6576.3515.8326.0714.5085.0515.1324.6633.5173.0222.8582.6342.0081.8472.353.2321.1060.9070.8070.7650.5060.5560.4930.4180.3290.2660.230.0990.0560.073
Percentage of ShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value-11.146-9.179-15.6760.434-11.9-21.458-24.912-71.095116.2084.931-2.0871.821.937-8.868-118.322-16.227-1.124-0.794-0.623-0.515-3.682-1.048-0.529-0.532-1.024-0.9-0.162-2.81-0.45-1.942
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-7.5-6.3-11.50.3-9.8-17.7-21.0-64.911.66.65.5-2.62.32.4-23.4-330.6-49.6-3.6-2.6-2.2-1.9-14.0-4.2-2.2-2.3-5.2-4.9-0.9-15.8-2.6-11.5

Payments To Acquire Property Plant And Equipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value0.8781.4550.8041.7182.45312155.1541.9843.3182.91.6551.2232.6542.5031.7282.2932.3421.2793.6261.6041.5991.1771.0451.0731.3031.971.5271.0260.7720.6360.9790.4660.4330.5153.6821.0480.5570.5321.396-0.1850.1660.8111.709-0.629
Percentage of PaymentsToAcquirePropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value3.4357.2771.3444.705-0.1346.25365-0.8861.3672500.958-2.4890.5013.399
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.35.01.03.6-0.15.155.1-0.81.4266.91.1-3.10.64.3

Effective Income Tax Rate Continuing Operations

us-gaap:EffectiveIncomeTaxRateContinuingOperations

us-gaap:EffectiveIncomeTaxRateContinuingOperations


Effective
Period End2021-06-302020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302016-12-312016-09-302016-06-30
Value-0.6-0.8-0.4-0.005-0.006-0.006-0.004-0.01-0.006-0.006-400.70.860.363-0.022-1.25-0.075
Percentage of EffectiveIncomeTaxRateContinuingOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber


Share
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-03-312010-03-31
Value1813000.02071000.02210000.02259000.02274300.02668000.02788000.02974000.03114100.03387000.03522000.03891000.03998300.04292000.04228000.04348000.04462400.04770800.04783600.04655400.04793300.05271100.05530300.05460700.05327900.05561100.05347800.05605400.06002400.06404200.06430500.05495900.05991500.06053700.06379100.05995500.06034300.06969200.09267400.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice


Share
Period End2021-06-302021-03-312020-03-312019-03-312018-03-312017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-03-312010-03-31
Value9.59.469.59.458.937.527.177.116.526.295.95.85.375.195.034.164.164.144.063.772.632.522.512.461.891.91.561.9
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod


Share
Period End2020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value1.3994.0391.3040.7633.9761.1472.8811.1640.948-2.8840.4382.0760.37-2.1160.2171.5980.301
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod us-gaap:AwardType

us-gaap:PerformanceShares


Share
Period End2021-06-30
Value0.465
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod0.0

us-gaap:RestrictedStockUnitsRSU


Share
Period End2021-06-30
Value3.466
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod0.0

Deferred Tax Assets Net

us-gaap:DeferredTaxAssetsNet

us-gaap:DeferredTaxAssetsNet


Deferred
Period End2021-03-312020-03-312019-03-312018-03-312017-03-312016-03-312015-03-312014-03-312013-03-312012-03-31
Value5557280.0484647495261
Percentage of DeferredTaxAssetsNet100.0100.0100.00.0100.0100.0100.0100.0100.0100.0

Unrecognized Tax Benefits

us-gaap:UnrecognizedTaxBenefits

us-gaap:UnrecognizedTaxBenefits


Unrecognized
Period End2021-03-312020-03-312019-03-312018-03-312017-03-312016-12-312016-09-302016-03-312015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-03-312011-03-312010-03-31
Value7053000.06115000.05000000.03980000.03331000.02900000.02900000.02881000.02420000.02200000.02200000.02200000.02165000.03000000.03000000.03000000.03024000.02500000.02500000.01726000.01743000.0
Percentage of UnrecognizedTaxBenefits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Assets Valuation Allowance

us-gaap:DeferredTaxAssetsValuationAllowance

us-gaap:DeferredTaxAssetsValuationAllowance


Deferred
Period End2021-03-312020-03-312019-03-312018-03-312017-03-312016-03-312015-03-312014-03-312013-03-312012-03-31
Value16011565622.9343.764.9015.5623.1072.07
Percentage of DeferredTaxAssetsValuationAllowance100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

eght:AmortizationofDebtDiscount us-gaap:DebtInstrument, us-gaap:LongtermDebtType

eght:AmortizationofDebtDiscount

eght:AggregateNotes, us-gaap:ConvertibleDebt


Amortizationof
Period End2021-06-302020-12-312020-09-302020-06-302019-12-312019-09-302019-06-30
Value4.3324.1984.1334.0683.5823.1983.146
Percentage of AmortizationofDebtDiscount100.0100.0100.0100.0100.0100.0100.0

eght:IntangibleAssetsFullyAmortizedWrittenOff us-gaap:FiniteLivedIntangibleAssetsByMajorClass

eght:IntangibleAssetsFullyAmortizedWrittenOff

us-gaap:CustomerRelationships


Intangible
Period End2021-06-30
Value5.5
Percentage of IntangibleAssetsFullyAmortizedWrittenOff100.0

us-gaap:PatentedTechnology


Intangible
Period End2021-06-30
Value6.7
Percentage of IntangibleAssetsFullyAmortizedWrittenOff121.8

us-gaap:TradeNames


Intangible
Period End2021-06-30
Value0.9
Percentage of IntangibleAssetsFullyAmortizedWrittenOff16.4

eght:OperatingLeaseExpenseNetOfAccretion

eght:OperatingLeaseExpenseNetOfAccretion


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value3.4593.7413.8843.8353.754.2954.4424.1492.085
Percentage of OperatingLeaseExpenseNetOfAccretion100.0100.0100.0100.0100.0100.0100.0100.0100.0

eght:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantedPerformanceAchievementInPeriod us-gaap:AwardType

eght:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantedPerformanceAchievementInPeriod

us-gaap:PerformanceShares


Share
Period End2021-06-30
Value20000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantedPerformanceAchievementInPeriod100.0

eght:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsPerformanceAchievementInPeriodWeightedAverageGrantDateFairValue us-gaap:AwardType

eght:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsPerformanceAchievementInPeriodWeightedAverageGrantDateFairValue

us-gaap:PerformanceShares


Share
Period End2021-06-30
Value27.92
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsPerformanceAchievementInPeriodWeightedAverageGrantDateFairValue100.0

us-gaap:AmortizationOfDeferredSalesCommissions

us-gaap:AmortizationOfDeferredSalesCommissions


Amortization
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value8.2457.7777.2766.6266.1385.7365.0874.5294.18914-6.6643.4113.253
Percentage of AmortizationOfDeferredSalesCommissions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AmortizationOfFinancingCostsAndDiscounts

us-gaap:AmortizationOfFinancingCostsAndDiscounts


Amortization
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value4.3934.3244.2574.1914.1264.0583.593.2243.1731.3550.00.00.0
Percentage of AmortizationOfFinancingCostsAndDiscounts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0

us-gaap:CapitalizedComputerSoftwareAmortization1

us-gaap:CapitalizedComputerSoftwareAmortization1


Capitalized
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value7.2436.9137.1286.6766.2175.7625.0214.4373.8053.2962.7032.0641.685
Percentage of CapitalizedComputerSoftwareAmortization1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CapitalizedContractCostAmortization

us-gaap:CapitalizedContractCostAmortization


Capitalized
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value7.77.36.76.15.75.14.54.2
Percentage of CapitalizedContractCostAmortization100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerLiabilityRevenueRecognized

us-gaap:ContractWithCustomerLiabilityRevenueRecognized


Contract
Period End2021-06-302021-03-312020-12-312020-09-302018-12-31
Value7600000.0400000.0700000.01300000.02300000.0
Percentage of ContractWithCustomerLiabilityRevenueRecognized100.0100.0100.0100.0100.0

us-gaap:Depreciation

us-gaap:Depreciation


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value2.9222.7682.8392.8672.8232.5592.2022.2742.3252.2842.2332.172.0612.1222.0872.0651.8971.6211.4841.5081.4711.3961.3231.2820.9931.0270.9370.8210.7550.6790.6010.6120.6750.7070.6840.6270.5050.4340.3850.3780.338
Percentage of Depreciation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


Effect
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value436000.0-160000.01158000.0378000.0580000.0-1126000.0447000.098000.0413000.0-23000.0-118000.035000.0-256000.035000.0
Percentage of EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeasePrincipalPayments

us-gaap:FinanceLeasePrincipalPayments


Finance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value4000.04000.04000.03000.067000.03000.085000.097000.0130000.0
Percentage of FinanceLeasePrincipalPayments100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GoodwillForeignCurrencyTranslationGainLoss

us-gaap:GoodwillForeignCurrencyTranslationGainLoss


Goodwill
Period End2021-06-302021-03-312020-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value-79000.06987000.0-1915000.0156000.0703000.0-478000.0-93000.0-593000.0-790000.0-229000.0963000.0641000.01489000.0
Percentage of GoodwillForeignCurrencyTranslationGainLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value-5.063-9.695-1.6881.869-0.519-5.7178.2760.188-0.5884.0545.0674.2263.9053.0055.4560.512.8893.7411.7282.0690.597
Percentage of IncreaseDecreaseInAccountsPayableAndAccruedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInContractWithCustomerAsset

us-gaap:IncreaseDecreaseInContractWithCustomerAsset


Increase
Period End2020-12-31
Value1141000.0
Percentage of IncreaseDecreaseInContractWithCustomerAsset100.0

us-gaap:IncreaseDecreaseInContractWithCustomerLiability

us-gaap:IncreaseDecreaseInContractWithCustomerLiability


Increase
Period End2020-12-31
Value8.653
Percentage of IncreaseDecreaseInContractWithCustomerLiability100.0

us-gaap:IncreaseDecreaseInDeferredCharges

us-gaap:IncreaseDecreaseInDeferredCharges


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value11111413131213118.707182.5592.8761.7990.00.00.00.0-0.026-0.033-0.0010.120.0680.0790.0240.0530.028-0.1610.1830.157-0.0480.217-0.0360.03-0.042-0.0150.011-0.0140.0070.008-0.0190.005-0.0180.0040.015-0.017
Percentage of IncreaseDecreaseInDeferredCharges100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInDeferredRevenue

us-gaap:IncreaseDecreaseInDeferredRevenue


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value1.0122.8758.1221.2592.416-0.174.1840.090.832-0.1840.1720.5210.293-0.0410.0650.347-0.0610.027-0.1990.1560.2110.1540.1940.083-0.704-0.225-0.276-0.9160.3520.0760.204-0.588-0.373-0.2840.033-0.2770.1830.1220.31-0.091-0.1440.2040.4740.05-0.253
Percentage of IncreaseDecreaseInDeferredRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherOperatingAssets

us-gaap:IncreaseDecreaseInOtherOperatingAssets


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value2.55-4.9761.4074.5073.0258.3577.362115.741.7721.1131.0330.4190.834-1.171.8621.6230.96-1.1511.7080.508-0.2670.9050.3240.47-0.309-0.1030.4330.175-0.0820.1390.1250.306-0.018-0.210.110.148-0.084-0.252-0.2130.06-0.15-0.0590.164-0.03
Percentage of IncreaseDecreaseInOtherOperatingAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestExpenseDebtExcludingAmortization us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:InterestExpenseDebtExcludingAmortization

eght:AggregateNotes, us-gaap:ConvertibleDebt


Interest
Period End2021-06-302020-12-312020-09-302020-06-302019-12-312019-09-302019-06-30
Value453000.0453000.0453000.0453000.0400000.0360000.0359000.0
Percentage of InterestExpenseDebtExcludingAmortization100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingLeaseCost

us-gaap:OperatingLeaseCost


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value3.4593.7413.8863.8333.754.2714.44.22.085
Percentage of OperatingLeaseCost100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingLeasePayments

us-gaap:OperatingLeasePayments


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value4200000.03600000.02100000.02100000.02100000.02693000.02720000.02235000.02252000.0
Percentage of OperatingLeasePayments100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent

us-gaap:OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-312018-09-302018-06-30
Value-33000.0-59000.0-73000.0-43000.0422000.0-309000.0-12000.0-3000.0121000.0-101000.0149000.0113000.0
Percentage of OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-06-302020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302018-12-312018-09-302018-06-30
Value-33000.0-73000.0-43000.0422000.0-12000.0-3000.0121000.0-101000.0149000.0113000.0
Percentage of OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax

us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value283000.0-631000.04537000.02945000.0885000.0-5302000.04587000.0-3253000.0-652000.0419000.0-549000.0-379000.0-1672000.01076000.0198000.01192000.01791000.0547000.0-1791000.0-1500000.0-2784000.0-1121000.0-972000.0-1409000.01478000.0-1017000.0-1005000.0-944000.0453000.0181000.0326000.00000
Percentage of OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0

us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-06-302020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302018-12-312018-09-302018-06-30
Value283000.04537000.02945000.0885000.04587000.0-3253000.0-652000.0-549000.0-379000.0-1672000.0
Percentage of OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherOperatingActivitiesCashFlowStatement

us-gaap:OtherOperatingActivitiesCashFlowStatement


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value713000.01004000.050000.0-135000.0602000.0851000.01981000.093000.0597000.0-695000.0
Percentage of OtherOperatingActivitiesCashFlowStatement100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsForSoftware

us-gaap:PaymentsForSoftware


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-30
Value6.5465.9586.77.2928.8668.7898.4456.6017.7387.4126.8246.2745.1123.7973.4863.0812.1221.5771.4961.7360.7070.820.5670.2370.4710.2680.2750.1810.00.1650.1170.1450.3280.190.00.00.0
Percentage of PaymentsForSoftware100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.00.00.00.0

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation


Payments
Period End2021-06-302020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302018-12-312018-09-302018-06-30
Value99000.00069000.0760000.05403000.023000.0-552000.07954000.0229000.0
Percentage of PaymentsRelatedToTaxWithholdingForShareBasedCompensation100.00.00.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsToAcquireBusinessesGross

us-gaap:PaymentsToAcquireBusinessesGross


Payments
Period End2020-12-312019-12-31
Value0.00.112
Percentage of PaymentsToAcquireBusinessesGross0.0100.0

us-gaap:PaymentsToAcquireBusinessesGross us-gaap:BusinessAcquisition

eght:WavecellPte.Ltd.


Payments
Period End2020-09-302019-07-17
Value3.572
Percentage of PaymentsToAcquireBusinessesGross0.00.0

us-gaap:PaymentsToAcquireMarketableSecurities

us-gaap:PaymentsToAcquireMarketableSecurities


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302012-03-312011-03-31
Value2815180.8121712105.39131.7749.9162219391836214728214236371734281927301410.00.00.00.00.0
Percentage of PaymentsToAcquireMarketableSecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.00.0

us-gaap:ProceedsFromSaleAndMaturityOfMarketableSecurities

us-gaap:ProceedsFromSaleAndMaturityOfMarketableSecurities


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-30
Value100.7990.00.2190.03.3982.4780.84629121811114.459108.0025.2526.4677.958111512128.679227.1844.0436.54518240.00.00.0
Percentage of ProceedsFromSaleAndMaturityOfMarketableSecurities100.0100.00.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0

us-gaap:ProceedsFromSaleMaturityAndCollectionOfShorttermInvestments

us-gaap:ProceedsFromSaleMaturityAndCollectionOfShorttermInvestments


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-30
Value14191013169.7557.653.9454.65.859.395171843112025461812172514167.82329.8183.30.00.00.00.0
Percentage of ProceedsFromSaleMaturityAndCollectionOfShorttermInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0

us-gaap:ProceedsFromStockPlans

us-gaap:ProceedsFromStockPlans


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value3.5387.2811.3484.7080.0027.2950.9014.6141.524.830.6525.7131.0073.9260.5152.0680.722.3930.0941.5611.0391.9790.7721.740.3361.7890.9671.5290.172.2080.7450.9181.2960.7150.4881.1680.0872.0460.2560.4260.2670.5191.3980.3430.014
Percentage of ProceedsFromStockPlans100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProvisionForDoubtfulAccounts

us-gaap:ProvisionForDoubtfulAccounts


Provision
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value383000.0521000.0956000.01252000.01742000.02156000.0379000.0515000.0429000.0
Percentage of ProvisionForDoubtfulAccounts100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod


Share
Period End2020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value405000.0233000.0331000.0393000.0218000.0445000.0267000.0265000.0168000.0-447000.0175000.0144000.0128000.0-284620.0144000.041000.0101000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod us-gaap:AwardType

us-gaap:PerformanceShares


Share
Period End2021-06-30
Value198000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod0.0

us-gaap:RestrictedStockUnitsRSU


Share
Period End2021-06-30
Value317000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod0.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue

us-gaap:PerformanceShares


Share
Period End2021-06-30
Value24.61
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue100.0

us-gaap:RestrictedStockUnitsRSU


Share
Period End2021-06-30
Value19.71
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue80.1

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue


Share
Period End2020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value3.22-3.4719.220-0.0522.4-1.96-0.1922.2-13.89-0.20.5913.5-15.07-0.013.5511.53
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:PerformanceShares


Share
Period End2021-06-302021-03-31
Value27.92-0.07
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue0.00.0

us-gaap:RestrictedStockUnitsRSU


Share
Period End2021-06-302021-03-31
Value26.361.61
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue0.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod


Share
Period End2020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value1032000.01777000.0721000.0915000.01616000.0329000.0403000.01421000.0299000.0-1608600.0390000.01036000.0189000.0-1349600.0485000.0622000.0312000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod us-gaap:AwardType

us-gaap:PerformanceShares


Share
Period End2021-06-30
Value206000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod0.0

us-gaap:RestrictedStockUnitsRSU


Share
Period End2021-06-30
Value969000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod0.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue

us-gaap:PerformanceShares


Share
Period End2021-06-30
Value16.12
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue100.0

us-gaap:RestrictedStockUnitsRSU


Share
Period End2021-06-30
Value20.07
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue124.5

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate

eght:SalaryAndBonusStockProgram


Share
Period End2021-06-30
Value58.7
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum

eght:SalaryAndBonusStockProgram


Share
Period End2021-06-30
Value0.07
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum

eght:SalaryAndBonusStockProgram


Share
Period End2021-06-30
Value0.06
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue


Share
Period End2020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302016-12-312016-09-302016-06-30
Value1.4590.2970.0051.1182.3241.4020.6237.3391.1860.7752.7450.7920.1531.5332.018
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue us-gaap:AwardType

us-gaap:EmployeeStock


Share
Period End2021-06-302020-06-30
Value9.10.1
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue0.02000.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value9000.07000.0014000.014000.0-473.016000.023000.016000.0169130.095000.024000.073000.0-475360.042000.086000.048000.0-176250.041000.01000.00
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice


Share
Period End2021-06-30
Value21.85
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue us-gaap:Range, us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue

srt:Maximum, eght:SalaryAndBonusStockProgram


Share
Period End2021-06-30
Value8.24
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue100.0

srt:Minimum, eght:SalaryAndBonusStockProgram


Share
Period End2021-06-30
Value4.64
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue56.3

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice


Share
Period End2021-06-30
Value9.04
Percentage of ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice100.0

us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised

us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised


Stock
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value391000.0251000.0139000.035000.01000.0394280.0104000.0163000.0124000.0118880.01215000.0-459000.0-115000.0352900.092000.0430000.0-101000.0265000.021000.0510000.0-192000.0
Percentage of StockIssuedDuringPeriodSharesStockOptionsExercised100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation


Stock
Period End2021-06-302020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302018-12-312018-09-302018-06-30
Value3.441.3474.708-0.0660.14-0.7881.494-0.28-0.5950.777
Percentage of StockIssuedDuringPeriodValueShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stock
Period End2021-06-302020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302018-12-312018-09-302018-06-30
Value3.4381.3464.706-0.0670.139-0.791.493-0.281-0.5960.777
Percentage of StockIssuedDuringPeriodValueShareBasedCompensation99.999.9100.0101.599.3100.399.9100.4100.2100.0

us-gaap:CommonStock


Stock
Period End2021-06-302020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302018-12-312018-09-302018-06-30
Value0.0020.0010.0020.0010.0010.0020.0010.0010.0010.0
Percentage of StockIssuedDuringPeriodValueShareBasedCompensation0.10.10.0-1.50.7-0.30.1-0.4-0.20.0

us-gaap:VariableLeaseCost

us-gaap:VariableLeaseCost


Variable
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value750000.094000.0729000.0857000.0782000.0730000.0434000.0229000.0209000.0
Percentage of VariableLeaseCost100.0100.0100.0100.0100.0100.0100.0100.0100.0

dei:EntityPublicFloat

dei:EntityPublicFloat


Entity
Period End2020-09-30
Value900
Percentage of EntityPublicFloat100.0

eght:CashCashEquivalentsandDebtSecuritiesAvailableforsale

eght:CashCashEquivalentsandDebtSecuritiesAvailableforsale


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-03-31
Value161161168174186186235211318346114152
Percentage of CashCashEquivalentsandDebtSecuritiesAvailableforsale100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

eght:CashCashEquivalentsandDebtSecuritiesAvailableforsale us-gaap:BalanceSheetLocation

eght:LongtermInvestments


Cash
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value123.8786.1819.96516202021
Percentage of CashCashEquivalentsandDebtSecuritiesAvailableforsale7.92.33.55.48.68.69.66.8

eght:RestrictedCash


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value8.6418.64115151919
Percentage of CashCashEquivalentsandDebtSecuritiesAvailableforsale5.35.49.38.910.210.2

us-gaap:CashAndCashEquivalents


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value109112106121116137184162269
Percentage of CashCashEquivalentsandDebtSecuritiesAvailableforsale67.569.763.669.662.773.578.676.584.6

us-gaap:ShortTermInvestments


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value314041314033302927
Percentage of CashCashEquivalentsandDebtSecuritiesAvailableforsale19.325.024.817.921.817.912.913.88.6

eght:CashCashEquivalentsandDebtSecuritiesAvailableforsale us-gaap:BalanceSheetLocation, us-gaap:FairValueByFairValueHierarchyLevel

eght:RestrictedCash, us-gaap:FairValueInputsLevel1


Cash
Period End2020-12-312020-09-302020-06-302020-03-31
Value6.9176.9171010
Percentage of CashCashEquivalentsandDebtSecuritiesAvailableforsale4.14.05.65.6

us-gaap:CashAndCashEquivalents, us-gaap:FairValueInputsLevel1


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value106106104120112131180158264
Percentage of CashCashEquivalentsandDebtSecuritiesAvailableforsale65.866.162.568.660.370.576.674.683.1

eght:CashCashEquivalentsandDebtSecuritiesAvailableforsale us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:FairValueInputsLevel1


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value106112118133134138186164267
Percentage of CashCashEquivalentsandDebtSecuritiesAvailableforsale65.870.070.376.172.273.979.477.784.0

eght:CashCashEquivalentsandDebtSecuritiesAvailableforsaleAmortizedCost

eght:CashCashEquivalentsandDebtSecuritiesAvailableforsaleAmortizedCost


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-03-31
Value161161167174186187235211318346115152
Percentage of CashCashEquivalentsandDebtSecuritiesAvailableforsaleAmortizedCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

eght:CashCashEquivalentsandDebtSecuritiesAvailableforsaleAmortizedCost us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:FairValueInputsLevel1


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value106112118133134137186164267
Percentage of CashCashEquivalentsandDebtSecuritiesAvailableforsaleAmortizedCost65.970.070.376.272.273.779.477.884.1

eght:ContractWithCustomerAsset

eght:ContractWithCustomerAsset


Contract
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-03-31
Value27262524185.717
Percentage of ContractWithCustomerAsset100.0100.0100.0100.0100.0100.0

eght:DeferredTaxAssetsLeaseLiability

eght:DeferredTaxAssetsLeaseLiability


Deferred
Period End2021-03-312020-03-31
Value2224
Percentage of DeferredTaxAssetsLeaseLiability100.0100.0

eght:DeferredTaxLiabilitiesRightOfUseAsset

eght:DeferredTaxLiabilitiesRightOfUseAsset


Deferred
Period End2021-03-312020-03-31
Value1519
Percentage of DeferredTaxLiabilitiesRightOfUseAsset100.0100.0

eght:EmployeeStockPurchasePlanMaximumContributionofEmployeesBaseCompensation us-gaap:StatementScenario, us-gaap:AwardType, us-gaap:PlanName

eght:EmployeeStockPurchasePlanMaximumContributionofEmployeesBaseCompensation

srt:ScenarioForecast, us-gaap:EmployeeStock, eght:EmployeeStockPurchasePlan


Employee
Period End2020-08-31
Value0.2
Percentage of EmployeeStockPurchasePlanMaximumContributionofEmployeesBaseCompensation100.0

eght:FiniteLivedIntangibleAssetsAmortizationExpenseYearFiveAndThereafter

eght:FiniteLivedIntangibleAssetsAmortizationExpenseYearFiveAndThereafter


Finite
Period End2021-03-31
Value3564000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearFiveAndThereafter100.0

eght:LeaseAssignmentLeaseLiability

eght:LeaseAssignmentLeaseLiability


Lease
Period End2021-03-312020-12-312020-09-302020-03-312019-03-31
Value800000.02800000.04800000.08969000.00
Percentage of LeaseAssignmentLeaseLiability100.0100.0100.0100.00.0

eght:LeaseAssignmentLeaseLiabilityCurrent

eght:LeaseAssignmentLeaseLiabilityCurrent


Lease
Period End2021-03-312020-03-31
Value869000.08969000.0
Percentage of LeaseAssignmentLeaseLiabilityCurrent100.0100.0

eght:LeaseAssignmentReceivable

eght:LeaseAssignmentReceivable


Lease
Period End2020-12-312020-09-302020-03-312019-03-31
Value6400000.06900000.06853000.00
Percentage of LeaseAssignmentReceivable100.0100.0100.00.0

eght:LesseeOperatingLeaseLiabilityToBePaidAfterYearFour

eght:LesseeOperatingLeaseLiabilityToBePaidAfterYearFour


Lessee
Period End2021-06-302020-12-312020-09-30
Value475858
Percentage of LesseeOperatingLeaseLiabilityToBePaidAfterYearFour100.0100.0100.0

eght:OperatingLeasesReimbursementOfRentAndDirectExpenses

eght:OperatingLeasesReimbursementOfRentAndDirectExpenses


Operating
Period End2021-03-31
Value6400000.0
Percentage of OperatingLeasesReimbursementOfRentAndDirectExpenses100.0

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-03-31
Value32000.060000.0121000.0192000.0242000.0154000.0122000.0149000.0147000.077000.012000.010000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:FairValueInputsLevel1


Available
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value17000.042000.068000.089000.0116000.013000.07000.02000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax28.334.735.436.875.310.74.71.4

us-gaap:FairValueInputsLevel2


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-03-31
Value32000.043000.079000.0124000.0153000.038000.0109000.0142000.0145000.077000.012000.010000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax100.071.765.364.663.224.789.395.398.6100.0100.0100.0

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FinancialInstrument

us-gaap:FairValueInputsLevel1, us-gaap:USTreasurySecurities


Available
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value17000.042000.068000.089000.0116000.013000.07000.02000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax28.334.735.436.875.310.74.71.4

us-gaap:FairValueInputsLevel2, us-gaap:CommercialPaper


Available
Period End2021-06-302021-03-312020-06-302020-03-312019-12-312019-09-302019-06-302018-03-31
Value2000.042000.01000.06000.01000.0000
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax6.270.00.43.90.80.00.00.0

us-gaap:FairValueInputsLevel2, us-gaap:CorporateDebtSecurities


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-03-31
Value30000.01000.079000.0124000.0152000.032000.093000.0123000.0122000.051000.06000.06000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax93.81.765.364.662.820.876.282.683.066.250.060.0

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax


Available
Period End2021-06-302020-12-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-03-31
Value5000.02000.07000.0341000.008000.08000.061000.0306000.0464000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax100.0100.0100.0100.00.0100.0100.0100.0100.0100.0

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:FairValueInputsLevel2


Available
Period End2021-06-302020-12-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-03-31
Value5000.02000.07000.0341000.003000.08000.061000.0306000.0464000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax100.0100.0100.0100.00.037.5100.0100.0100.0100.0

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FinancialInstrument

us-gaap:FairValueInputsLevel2, us-gaap:CommercialPaper


Available
Period End2020-12-312020-06-302020-03-312019-12-312019-09-302019-06-302018-03-31
Value1000.000002000.08000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax50.00.00.00.00.025.01.7

us-gaap:FairValueInputsLevel2, us-gaap:CorporateDebtSecurities


Available
Period End2021-06-302020-12-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-03-31
Value5000.01000.07000.0341000.003000.03000.029000.0222000.0296000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax100.050.0100.0100.00.037.537.547.572.563.8

us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis

us-gaap:FairValueInputsLevel2


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-03-31
Value5548494151494847506986121
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FinancialInstrument

us-gaap:FairValueInputsLevel1, us-gaap:USTreasurySecurities


Available
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value6.1776.1816.185116.1926.4986.5782.91
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis12.712.414.922.612.613.414.05.7

us-gaap:FairValueInputsLevel2, us-gaap:CommercialPaper


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-03-31
Value1517164.3999.395148.8355.5926.17613
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis27.436.432.510.618.230.518.211.912.211.0

us-gaap:FairValueInputsLevel2, us-gaap:CorporateDebtSecurities


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-03-31
Value302225283334363740465970
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis55.745.850.268.765.169.574.780.579.266.668.558.4

us-gaap:AvailableForSaleSecuritiesDebtSecurities us-gaap:BalanceSheetLocation, us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:AvailableForSaleSecuritiesDebtSecurities

eght:LongtermInvestments, us-gaap:FairValueInputsLevel2


Available
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value123.8786.1819.9659.775131318
Percentage of AvailableForSaleSecuritiesDebtSecurities100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CashAndCashEquivalents, us-gaap:FairValueInputsLevel2


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value2.75.7491.9061.84.45.5964.6713.9954.587
Percentage of AvailableForSaleSecuritiesDebtSecurities21.20.049.129.144.257.234.328.824.5

us-gaap:ShortTermInvestments, us-gaap:FairValueInputsLevel1


Available
Period End2021-03-312020-12-312020-09-302020-06-30
Value6.1946.2236.25311
Percentage of AvailableForSaleSecuritiesDebtSecurities0.0160.5101.2118.2

us-gaap:ShortTermInvestments, us-gaap:FairValueInputsLevel2


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value31343525283330292769
Percentage of AvailableForSaleSecuritiesDebtSecurities245.70.0915.8406.5289.1342.3222.4211.5146.60.0

us-gaap:AvailableForSaleSecuritiesDebtSecurities us-gaap:BalanceSheetLocation, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FinancialInstrument

eght:LongtermInvestments, us-gaap:FairValueInputsLevel2, us-gaap:CorporateDebtSecurities


Available
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value123.8786.1819.9659.775131316
Percentage of AvailableForSaleSecuritiesDebtSecurities100.0100.0100.0100.0100.0100.0100.088.7

us-gaap:CashAndCashEquivalents, us-gaap:FairValueInputsLevel2, us-gaap:CommercialPaper


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value2.00.71.31.84.45.5964.6713.9954.587
Percentage of AvailableForSaleSecuritiesDebtSecurities15.70.033.529.144.257.234.328.824.5

us-gaap:CashAndCashEquivalents, us-gaap:FairValueInputsLevel2, us-gaap:CorporateDebtSecurities


Available
Period End2021-03-312020-12-31
Value5.0490.606
Percentage of AvailableForSaleSecuritiesDebtSecurities0.015.6

us-gaap:ShortTermInvestments, us-gaap:FairValueInputsLevel1, us-gaap:USTreasurySecurities


Available
Period End2021-03-312020-12-312020-09-302020-06-30
Value6.1946.2236.25311
Percentage of AvailableForSaleSecuritiesDebtSecurities0.0160.5101.2118.2

us-gaap:ShortTermInvestments, us-gaap:FairValueInputsLevel2, us-gaap:CommercialPaper


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value1316142.5994.9969.3894.1651.5971.587
Percentage of AvailableForSaleSecuritiesDebtSecurities103.20.0384.042.050.196.130.611.58.5

us-gaap:ShortTermInvestments, us-gaap:FairValueInputsLevel2, us-gaap:CorporateDebtSecurities


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value18172022232422242346
Percentage of AvailableForSaleSecuritiesDebtSecurities142.50.0531.8364.5238.9246.2166.4173.9125.90.0

us-gaap:AvailableForSaleSecuritiesDebtSecurities us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:FairValueInputsLevel2


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-03-31
Value5548494151484847506986120
Percentage of AvailableForSaleSecuritiesDebtSecurities434.90.01287.8675.5519.9499.5356.7340.3271.00.00.00.0

us-gaap:AvailableForSaleSecuritiesDebtSecurities us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FinancialInstrument

us-gaap:FairValueInputsLevel1, us-gaap:USTreasurySecurities


Available
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value6.1946.2236.253116.3086.5116.582.912
Percentage of AvailableForSaleSecuritiesDebtSecurities0.0160.5101.2118.264.547.847.415.5

us-gaap:FairValueInputsLevel2, us-gaap:CommercialPaper


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-03-31
Value1517164.3999.396148.8365.5926.17413
Percentage of AvailableForSaleSecuritiesDebtSecurities119.00.0417.671.294.3153.364.940.332.90.0

us-gaap:FairValueInputsLevel2, us-gaap:CorporateDebtSecurities


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-03-31
Value302225283333363740465970
Percentage of AvailableForSaleSecuritiesDebtSecurities242.50.0647.4464.5338.9346.2266.4273.9214.60.00.00.0

us-gaap:CapitalizedContractCostNetCurrent

us-gaap:CapitalizedContractCostNetCurrent


Capitalized
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value313028262422201816151413120.0
Percentage of CapitalizedContractCostNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:CapitalizedContractCostNetNoncurrent

us-gaap:CapitalizedContractCostNetNoncurrent


Capitalized
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value747269645853484236333029270.0
Percentage of CapitalizedContractCostNetNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:CashAndCashEquivalentsFairValueDisclosure us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FinancialInstrument

us-gaap:CashAndCashEquivalentsFairValueDisclosure

us-gaap:FairValueInputsLevel1, us-gaap:MoneyMarketFunds


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value6767719488110
Percentage of CashAndCashEquivalentsFairValueDisclosure100.0100.0100.0100.0100.0100.0

us-gaap:FairValueInputsLevel1, us-gaap:MunicipalBonds


Cash
Period End2021-06-30
Value0.7
Percentage of CashAndCashEquivalentsFairValueDisclosure1.0

us-gaap:CashAndCashEquivalentsFairValueDisclosure us-gaap:FinancialInstrument

us-gaap:Cash


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value393940323431
Percentage of CashAndCashEquivalentsFairValueDisclosure58.857.757.134.638.428.3

us-gaap:ContractWithCustomerAssetNetCurrent

us-gaap:ContractWithCustomerAssetNetCurrent


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value121212111110139.3755.7173.1431.7821.6971.725
Percentage of ContractWithCustomerAssetNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerAssetNetNoncurrent

us-gaap:ContractWithCustomerAssetNetNoncurrent


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-03-31
Value1817151413130.0
Percentage of ContractWithCustomerAssetNetNoncurrent100.0100.0100.0100.0100.0100.00.0

us-gaap:ContractWithCustomerLiability

us-gaap:ContractWithCustomerLiability


Contract
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-04-01
Value2012108.2248.6274.3134.1553.3423.5312.578
Percentage of ContractWithCustomerLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerLiabilityNoncurrent

us-gaap:ContractWithCustomerLiabilityNoncurrent


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-03-312018-03-31
Value2813000.02999000.02768000.02678000.02279000.01119000.06000.019000.0
Percentage of ContractWithCustomerLiabilityNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ConvertibleDebtFairValueDisclosures us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:ConvertibleDebtFairValueDisclosures

us-gaap:FairValueInputsLevel2


Convertible
Period End2021-03-312020-03-31
Value502309
Percentage of ConvertibleDebtFairValueDisclosures100.0100.0

us-gaap:DebtInstrumentFairValue us-gaap:DebtInstrument, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:LongtermDebtType

us-gaap:DebtInstrumentFairValue

eght:InitialNotes, us-gaap:FairValueInputsLevel2, us-gaap:ConvertibleDebt


Debt
Period End2021-06-302021-03-312020-12-312020-09-30
Value450502527336
Percentage of DebtInstrumentFairValue100.0100.0100.0100.0

us-gaap:DebtInstrumentUnamortizedDiscount us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:DebtInstrumentUnamortizedDiscount

eght:AggregateNotes, us-gaap:ConvertibleDebt


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-03-31
Value4853576165697570
Percentage of DebtInstrumentUnamortizedDiscount100.0100.0100.0100.0100.0100.0100.0100.0

eght:ConvertibleSeniorNotes, us-gaap:ConvertibleDebt


Debt
Period End2021-03-312020-03-312019-09-302019-06-302019-03-31
Value5369646770
Percentage of DebtInstrumentUnamortizedDiscount100.0100.00.00.0100.0

us-gaap:DeferredFinanceCostsNet us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:DeferredFinanceCostsNet

eght:AggregateNotes, us-gaap:ConvertibleDebt


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-03-31
Value682000.0742000.0802000.0861000.0919000.0976000.01043000.0589000.0
Percentage of DeferredFinanceCostsNet100.0100.0100.0100.0100.0100.0100.0100.0

eght:ConvertibleSeniorNotes, us-gaap:ConvertibleDebt


Deferred
Period End2021-03-312020-03-312019-09-302019-06-302019-03-31
Value742000.0976000.0536000.0562000.0589000.0
Percentage of DeferredFinanceCostsNet100.0100.00.00.0100.0

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsGross


Deferred
Period End2021-03-312020-03-312019-03-31
Value21517394
Percentage of DeferredTaxAssetsGross100.0100.0100.0

us-gaap:DeferredTaxAssetsOperatingLossCarryforwards

us-gaap:DeferredTaxAssetsOperatingLossCarryforwards


Deferred
Period End2021-03-312020-03-312019-03-312018-03-312017-03-312016-03-312015-03-312014-03-312013-03-312012-03-31
Value1451096140363844514854
Percentage of DeferredTaxAssetsOperatingLossCarryforwards100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsPropertyPlantAndEquipment

us-gaap:DeferredTaxAssetsPropertyPlantAndEquipment


Deferred
Period End2021-03-312020-03-312019-03-312018-03-31
Value6091000.05314000.02709000.0378000.0
Percentage of DeferredTaxAssetsPropertyPlantAndEquipment100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxCreditCarryforwardsResearch

us-gaap:DeferredTaxAssetsTaxCreditCarryforwardsResearch


Deferred
Period End2021-03-312020-03-312019-03-312018-03-312017-03-312016-03-312015-03-312014-03-312013-03-312012-03-31
Value221915118.6147.1065.4144.4883.0262.436
Percentage of DeferredTaxAssetsTaxCreditCarryforwardsResearch100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost


Deferred
Period End2021-03-312020-03-312019-03-312018-03-312017-03-312016-03-312015-03-31
Value12109.0066.3896.9425.5773.164
Percentage of DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals


Deferred
Period End2021-03-312020-03-312019-03-312018-03-31
Value6198000.03974000.05697000.03181000.0
Percentage of DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesDeferredExpense

us-gaap:DeferredTaxLiabilitiesDeferredExpense


Deferred
Period End2021-03-312020-03-312019-03-312018-03-31
Value2721120.0
Percentage of DeferredTaxLiabilitiesDeferredExpense100.0100.0100.00.0

us-gaap:DeferredTaxLiabilitiesFinancingArrangements

us-gaap:DeferredTaxLiabilitiesFinancingArrangements


Deferred
Period End2021-03-312020-03-312019-03-312018-03-31
Value1216160.0
Percentage of DeferredTaxLiabilitiesFinancingArrangements100.0100.0100.00.0

us-gaap:EmployeeRelatedLiabilitiesCurrent

us-gaap:EmployeeRelatedLiabilitiesCurrent


Employee
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value272929282722242522181917161716151211129.9959.631109.887.7847.3056.1836.6125.55.2644.5835.3113.6463.7113.6293.7683.0473.0833.1053.2962.6111.9291.722
Percentage of EmployeeRelatedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized


Employee
Period End2020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302016-12-312016-09-302016-06-30
Value1571441161431291091127967646346515232
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized us-gaap:AwardType

eght:SalaryAndBonusStockProgram


Employee
Period End2021-06-30
Value8.8
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized0.0

us-gaap:EmployeeStock


Employee
Period End2021-06-302018-03-312016-12-312016-09-302015-12-312015-09-302014-12-312014-09-302014-06-302013-12-312013-09-302013-06-30
Value0.30.50.20.50.30.60.20.40.1790.0580.1530.186
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized0.00.00.41.00.00.00.00.00.00.00.00.0

us-gaap:EmployeeStockOption


Employee
Period End2021-03-312020-03-312019-03-31
Value0.4122107
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized0.00.00.0

us-gaap:PerformanceShares


Employee
Period End2021-06-302021-03-31
Value3224
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized0.00.0

us-gaap:RestrictedStockUnitsRSU


Employee
Period End2021-06-302021-03-31
Value165118
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized0.00.0

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized us-gaap:AwardType, us-gaap:BusinessAcquisition

eght:PerformanceBasedRestrictedStockAwards, eght:WavecellPte.Ltd.


Employee
Period End2021-03-31
Value8.5
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized0.0

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized us-gaap:AwardType, us-gaap:PlanName

us-gaap:EmployeeStock, eght:EmployeeStockPurchasePlan


Employee
Period End2021-06-302021-03-312020-12-312020-09-302020-03-312019-03-31
Value0.62.51.52.91.11.8
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized0.00.01.02.00.00.0

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions


Employee
Period End2020-12-312020-09-302019-12-312019-09-30
Value558000.0671000.01102000.01268000.0
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value172928262422191715252322211918161413121110109.5247.8826.7566.6255.8535.0594.2153.793.0762.6732.652.311.9531.5961.2390.882
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:CustomerRelationships


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value2.0217.3417.0796.4255.8175.4125.2974.5344.9838.087.7327.6397.5877.3667.0846.8636.5236.1875.8585.5625.2154.8984.5324.1433.7783.723.1542.5661.9291.711.2021.0051.1881.0540.9030.7520.6010.45
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization11.324.624.924.223.724.226.526.231.431.432.334.135.937.338.642.944.346.948.149.150.046.647.652.655.956.253.950.745.845.139.137.644.845.646.247.148.551.0

us-gaap:PatentedTechnology


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value15212019171614121015141211109.548.4217.7117.016.3185.7765.2155.4224.7973.7392.9782.9052.6992.4932.2862.081.8741.6681.4621.2561.050.8440.6380.432
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization88.272.071.772.172.373.172.673.468.660.058.956.955.153.452.052.652.453.151.950.950.051.650.447.444.143.846.149.354.254.960.962.455.254.453.852.951.549.0

us-gaap:TradeNames


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value0.0830.9880.9890.9860.9850.5990.1650.0812.1082.0131.9181.8231.7271.6320.6320.3890.00.00.00.00.1950.1950.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization0.53.33.53.74.02.70.80.58.28.48.68.68.88.93.92.60.00.00.00.01.92.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths


Finite
Period End2021-06-302021-03-312020-12-312020-09-30
Value2904000.04708000.04708000.04708000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear


Finite
Period End2021-06-302020-12-312020-09-30
Value4388000.01296000.02829000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo


Finite
Period End2021-06-302021-03-312020-12-312020-09-30
Value2851000.03156000.03156000.03156000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsGross

us-gaap:FiniteLivedIntangibleAssetsGross


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value3346464646464645263737343431313030302829293132323518181818181812121212121212
Percentage of FiniteLivedIntangibleAssetsGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsGross us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:CustomerRelationships


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value6.428111111111111116.1259.4679.3079.4649.6559.7769.6319.6159.5359.4199.3839.69.716101010109.6869.6869.6869.6869.6869.4832.9973.3053.3053.3053.3053.3053.305
Percentage of FiniteLivedIntangibleAssetsGross19.125.525.424.924.624.625.024.723.525.325.027.427.830.931.031.031.131.232.532.532.431.431.331.229.951.351.351.351.351.350.824.626.426.426.426.426.426.4

us-gaap:PatentedTechnology


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value273333333333333319252522221919191818171718191919218.2428.2428.2428.2428.2428.2428.2428.2428.2428.2428.2428.2428.242
Percentage of FiniteLivedIntangibleAssetsGross80.772.472.572.973.373.272.673.276.568.869.166.365.962.261.961.861.861.860.260.260.260.859.459.461.943.643.643.643.643.644.167.665.965.965.965.965.965.9

us-gaap:TradeNames


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value0.0830.9880.9890.9860.9850.9831.1280.9722.1082.1082.1082.1082.1082.1082.1072.082.0362.0222.0792.1172.42.4392.4722.5220.9570.9570.9570.9570.9570.9570.9570.9570.9570.9570.9570.9570.957
Percentage of FiniteLivedIntangibleAssetsGross0.22.12.12.12.12.12.42.15.65.76.16.16.76.86.86.86.77.07.07.17.57.57.57.25.15.15.15.15.15.17.87.77.77.77.77.77.7

us-gaap:LeaseIncentiveReceivable

us-gaap:LeaseIncentiveReceivable


Lease
Period End2020-09-30
Value1646000.0
Percentage of LeaseIncentiveReceivable100.0

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value15161616
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths100.0100.0100.0100.0

us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear

us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear


Lessee
Period End2021-06-302020-12-312020-09-30
Value123.5865.631
Percentage of LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear100.0100.0100.0

us-gaap:LossContingencyAccrualAtCarryingValue us-gaap:LossContingenciesByNatureOfContingency

us-gaap:LossContingencyAccrualAtCarryingValue

eght:StateAndLocalTaxesAndSurcharges


Loss
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-03-312018-03-31
Value2800000.03100000.04600000.04500000.04500000.04500000.08000000.0800000.0
Percentage of LossContingencyAccrualAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingLossCarryforwards us-gaap:IncomeTaxAuthority

us-gaap:OperatingLossCarryforwards

us-gaap:StateAndLocalJurisdiction


Operating
Period End2021-03-312020-03-312019-03-312018-03-312014-03-312013-03-31
Value29620380279395
Percentage of OperatingLossCarryforwards100.0100.0100.0100.0100.0100.0

us-gaap:OperatingLossCarryforwards us-gaap:TaxPeriod

eght:TaxYear2019And2020


Operating
Period End2021-03-312020-03-31
Value433280
Percentage of OperatingLossCarryforwards146.0137.7

eght:TaxYearsPriorTo2019


Operating
Period End2021-03-312020-03-31
Value137156
Percentage of OperatingLossCarryforwards46.576.7

us-gaap:OtherAssetsMiscellaneousCurrent

us-gaap:OtherAssetsMiscellaneousCurrent


Other
Period End2021-03-312020-03-312019-03-31
Value3284000.03912000.01519000.0
Percentage of OtherAssetsMiscellaneousCurrent100.0100.0100.0

us-gaap:OtherCommitment us-gaap:OtherCommitments

us-gaap:OtherCommitment

eght:ThirdPartyCustomerSupportCommitments


Other
Period End2021-03-312019-03-31
Value181.1
Percentage of OtherCommitment100.0100.0

us-gaap:OtherIntangibleAssetsNet

us-gaap:OtherIntangibleAssetsNet


Other
Period End2021-03-31
Value17
Percentage of OtherIntangibleAssetsNet100.0

us-gaap:OtherSundryLiabilitiesCurrent

us-gaap:OtherSundryLiabilitiesCurrent


Other
Period End2021-03-312020-03-312019-03-31
Value139.4446.79
Percentage of OtherSundryLiabilitiesCurrent100.0100.0100.0

us-gaap:PrepaidExpenseCurrent

us-gaap:PrepaidExpenseCurrent


Prepaid
Period End2021-03-312020-03-312019-03-31
Value17147.891
Percentage of PrepaidExpenseCurrent100.0100.0100.0

us-gaap:RestrictedCashCurrent

us-gaap:RestrictedCashCurrent


Restricted
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-03-31
Value8.1798.1796.9966.91710103.4593.4590.00.00.0
Percentage of RestrictedCashCurrent100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0

us-gaap:RestrictedCashNoncurrent

us-gaap:RestrictedCashNoncurrent


Restricted
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-03-31
Value0.4620.4628.5628.6418.6418.64115158.18.18.1
Percentage of RestrictedCashNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueRemainingPerformanceObligation

us-gaap:RevenueRemainingPerformanceObligation


Revenue
Period End2021-06-302021-03-312020-12-312020-09-30
Value530500365330
Percentage of RevenueRemainingPerformanceObligation100.0100.0100.0100.0

us-gaap:RevenueRemainingPerformanceObligationPercentage

us-gaap:RevenueRemainingPerformanceObligationPercentage


Revenue
Period End2021-06-302021-03-31
Value75.070.0
Percentage of RevenueRemainingPerformanceObligationPercentage100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber


Share
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-03-312010-03-31
Value11119.4439.1919.79108.1937.828.1095.8986.420.0049755.7725.8995.0030.011370.012620.0169150.0726960.0821710.0960460.1205910.19320.2238350.248620.3119460.4403770.4896270.5780550.6591130.864620.9585751.0141541.0728590.9293240.96640.8864450.35372
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber us-gaap:AwardType

us-gaap:PerformanceShares


Share
Period End2021-06-302021-03-312020-03-312019-03-312018-03-31
Value1.6571.5761.0790.9840.924
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber0.00.011.712.618572.9

us-gaap:RestrictedStockUnitsRSU


Share
Period End2021-06-302021-03-312020-03-312019-03-312018-03-312017-03-312016-03-31
Value108.6468.1127.8204885.9355434.939054.544799
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber0.00.088.3100.0119307.443439.35530.9

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue

us-gaap:PerformanceShares


Share
Period End2021-06-302021-03-312020-03-312019-03-312018-03-31
Value30.5627.3322.0519.2315.95
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue100.0100.0100.0100.0100.0

us-gaap:RestrictedStockUnitsRSU


Share
Period End2021-06-302021-03-312020-03-312019-03-312018-03-312017-03-312016-03-31
Value21.4519.2719.4317.6813.5111.578.08
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue70.270.588.191.984.70.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant us-gaap:PlanName

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant

eght:A2012Plan


Share
Period End2021-03-312020-03-312019-03-31
Value121710
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant100.0100.0100.0

eght:A2017Plan


Share
Period End2021-03-312020-03-312019-03-31
Value1.10.50.6
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant8.52.85.6

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber


Share
Period End2021-06-302021-03-312017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312012-06-30
Value1373000.01751000.03191900.03265500.03085800.03014300.02950700.03229900.03166500.03316700.03243300.04945900.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice


Share
Period End2021-06-302021-03-312017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value9.199.096.475.995.85.454.994.384.023.573.35
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue


Share
Period End2021-06-302021-03-31
Value2541
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber


Share
Period End2021-03-31
Value1809000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageExercisePrice


Share
Period End2021-03-31
Value9.43
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageExercisePrice100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue


Share
Period End2021-06-302012-06-30
Value2513
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber


Share
Period End2021-06-30
Value1411000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice


Share
Period End2021-06-30
Value9.48
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice100.0

us-gaap:SharePrice us-gaap:AwardType

us-gaap:SharePrice

us-gaap:PerformanceShares


Share
Period End2021-03-31
Value29.07
Percentage of SharePrice100.0

us-gaap:SharePrice us-gaap:Vesting

us-gaap:ShareBasedCompensationAwardTrancheOne


Share
Period End2021-06-30
Value25.78
Percentage of SharePrice0.0

us-gaap:ShareBasedCompensationAwardTrancheThree


Share
Period End2021-06-30
Value34.48
Percentage of SharePrice0.0

us-gaap:ShareBasedCompensationAwardTrancheTwo


Share
Period End2021-06-30
Value33.32
Percentage of SharePrice0.0

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueOutstanding us-gaap:AwardType

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueOutstanding

us-gaap:PerformanceShares


Sharebased
Period End2021-06-302021-03-31
Value4651
Percentage of SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueOutstanding100.0100.0

us-gaap:RestrictedStockUnitsRSU


Sharebased
Period End2021-06-302021-03-31
Value300280
Percentage of SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueOutstanding653.1548.7

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1


Sharebased
Period End2021-06-302012-06-30
Value2513
Percentage of SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1100.0100.0

us-gaap:StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1 us-gaap:ShareRepurchaseProgram

us-gaap:StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1

eght:A2017RepurchasePlan


Stock
Period End2021-03-31
Value7100000.0
Percentage of StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1100.0

us-gaap:TaxCreditCarryforwardAmount

us-gaap:TaxCreditCarryforwardAmount


Tax
Period End2021-03-31
Value5.0
Percentage of TaxCreditCarryforwardAmount100.0

us-gaap:TaxCreditCarryforwardAmount us-gaap:IncomeTaxAuthority

us-gaap:InternalRevenueServiceIRS


Tax
Period End2021-03-312020-03-312019-03-312018-03-312014-03-312013-03-31
Value1512107.22.72.4
Percentage of TaxCreditCarryforwardAmount306.00.00.00.00.00.0

us-gaap:StateAndLocalJurisdiction


Tax
Period End2021-03-312020-03-312019-03-312018-03-312014-03-312013-03-31
Value1614119.14.43.7
Percentage of TaxCreditCarryforwardAmount338.00.00.00.00.00.0

us-gaap:UndistributedEarningsOfForeignSubsidiaries

us-gaap:UndistributedEarningsOfForeignSubsidiaries


Undistributed
Period End2021-03-312020-03-312019-03-312018-03-312017-03-31
Value159.00.2-19.7-8.4
Percentage of UndistributedEarningsOfForeignSubsidiaries100.0100.0100.0100.0100.0

us-gaap:ValuationAllowancesAndReservesBalance us-gaap:ValuationAllowancesAndReservesType

us-gaap:ValuationAllowancesAndReservesBalance

us-gaap:AllowanceForCreditLoss


Valuation
Period End2021-03-312020-03-312019-03-312018-03-312017-03-312016-03-31
Value8178000.03106000.0864000.0904000.0954000.0586000.0
Percentage of ValuationAllowancesAndReservesBalance100.0100.0100.0100.0100.0100.0

Line plots across dimensions of each concept


us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities
(None,)
Antidilutive Securities Excluded From Computation Of Earnings Per Share Amountus-gaap: Antidilutive Securities Excluded From Computation Of Earnings Per Share By Antidilutive Securities
COGS Ratio
us-gaap:ProductOrService
(None,)
C O G S  Ratious-gaap: Product Or Service
TTM Greenblatt ROC
_
(None,)
T T M  Greenblatt  R O C_
us-gaap:AllocatedShareBasedCompensationExpense
us-gaap:IncomeStatementLocation
(None,)
Allocated Share Based Compensation Expenseus-gaap: Income Statement Location
us-gaap:AllocatedShareBasedCompensationExpense
us-gaap:ProductOrService, us-gaap:IncomeStatementLocation
(None, 'us-gaap:CostOfSales')
Allocated Share Based Compensation Expenseus-gaap: Product Or Service, us-gaap: Income Statement Location
us-gaap:CostOfGoodsAndServicesSold
us-gaap:ProductOrService
(None,)
Cost Of Goods And Services Soldus-gaap: Product Or Service
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:ProductOrService
(None,)
Revenue From Contract With Customer Excluding Assessed Taxus-gaap: Product Or Service
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:StatementGeographical
(None,)
Revenue From Contract With Customer Excluding Assessed Taxus-gaap: Statement Geographical
us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents
(None,)
Stockholders Equityus-gaap: Statement Equity Components
us-gaap:CashAndCashEquivalentsAtCarryingValue
us-gaap:BalanceSheetLocation, us-gaap:FinancialInstrument
(None, 'us-gaap:Cash')
Cash And Cash Equivalents At Carrying Valueus-gaap: Balance Sheet Location, us-gaap: Financial Instrument
us-gaap:PropertyPlantAndEquipmentGross
us-gaap:PropertyPlantAndEquipmentByType
(None,)
Property Plant And Equipment Grossus-gaap: Property Plant And Equipment By Type
us-gaap:PropertyPlantAndEquipmentNet
us-gaap:StatementGeographical
(None,)
Property Plant And Equipment Netus-gaap: Statement Geographical
us-gaap:FiniteLivedIntangibleAssetsNet
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
(None,)
Finite Lived Intangible Assets Netus-gaap: Finite Lived Intangible Assets By Major Class
us-gaap:LongTermDebt
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
(None, 'us-gaap:ConvertibleDebt')
Long Term Debtus-gaap: Debt Instrument, us-gaap: Longterm Debt Type
us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents
(None,)
Stockholders Equityus-gaap: Statement Equity Components