NVCR


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

Table of contents



us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted

us-gaap:AllocatedShareBasedCompensationExpense
us-gaap:IncomeStatementLocation

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:CostOfRevenue

us-gaap:GeneralAndAdministrativeExpense

us-gaap:GrossProfit

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxesPaidNet

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

us-gaap:InterestPaidNet

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic

us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted

us-gaap:OperatingExpenses

us-gaap:OperatingIncomeLoss

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossNetOfTax
us-gaap:StatementEquityComponents

us-gaap:ResearchAndDevelopmentExpense

us-gaap:Revenues
us-gaap:StatementGeographical

us-gaap:SellingAndMarketingExpense

us-gaap:Assets

us-gaap:Liabilities

us-gaap:LiabilitiesAndStockholdersEquity

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

us-gaap:AssetsCurrent

us-gaap:Cash

us-gaap:CashAndCashEquivalentsAtCarryingValue
us-gaap:CashAndCashEquivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:AccountsReceivableNetCurrent

us-gaap:InventoryNet

us-gaap:NoncurrentAssets
us-gaap:StatementGeographical

us-gaap:AssetsNoncurrent

us-gaap:PropertyPlantAndEquipmentGross
us-gaap:PropertyPlantAndEquipmentByType

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OtherAssetsNoncurrent

us-gaap:LiabilitiesCurrent

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OtherAccruedLiabilitiesCurrent

us-gaap:LiabilitiesNoncurrent

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

us-gaap:LongTermDebtNoncurrent

us-gaap:LongTermDebtAndCapitalLeaseObligations

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent

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

us-gaap:AdditionalPaidInCapital

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:StockIssuedDuringPeriodValueNewIssues
us-gaap:StatementEquityComponents

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:IncreaseDecreaseInInventories

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:ShareBasedCompensation

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:RepaymentsOfLongTermDebt
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentInterestRateStatedPercentage

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

us-gaap:DeferredTaxAssetsNet

us-gaap:UnrecognizedTaxBenefits

us-gaap:DeferredTaxAssetsValuationAllowance
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
nvcr:DebtInstrumentConvertiblePercentageOfConversionPrice
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
nvcr:DebtInstrumentIssuanceThresholdPercentageOfStockPriceTrigger
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
nvcr:DebtInstrumentRedemptionPriceAmount
us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType
nvcr:Granted, us-gaap:AwardType
nvcr:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedAndNotExpectedToVestFairValue
us-gaap:AwardType
us-gaap:PlanName
nvcr:ShareBasedCompensationArrangementByShareBasedPaymentAwardIncreaseInNumberOfSharesAvailableForIssuancePercentage
us-gaap:SubsidiarySaleOfStock
nvcr:ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfIncreaseInSharesOutstanding

nvcr:StockIssuedDuringPeriodValueExerciseOfOptionsAndVestedRSUs
us-gaap:StatementEquityComponents

nvcr:StockIssuedDuringPeriodValueStockOptionsExercisedAndRestrictedStockAwardForfeitures
us-gaap:StatementEquityComponents

us-gaap:AmortizationOfDebtDiscountPremium

us-gaap:AssetImpairmentCharges
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentConvertibleConversionRatio1
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentRedemptionPricePercentage

us-gaap:DepreciationAndAmortization

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:ForeignCurrencyTransactionGainLossBeforeTax

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities

us-gaap:IncreaseDecreaseInOtherNoncurrentAssets

us-gaap:IncreaseDecreaseInOtherNoncurrentLiabilities
us-gaap:Range, us-gaap:CreditFacility, us-gaap:LongtermDebtType
us-gaap:LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossTax
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:PaymentsOfDebtExtinguishmentCosts

us-gaap:PaymentsToAcquireHeldToMaturitySecurities
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:ProceedsFromConvertibleDebt

us-gaap:ProceedsFromIssuanceOfCommonStock

us-gaap:ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities

us-gaap:ProceedsFromStockOptionsExercised
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:RepaymentsOfSecuredDebt

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue
us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
us-gaap:AwardType
us-gaap:AwardType, us-gaap:Vesting

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue
us-gaap:AwardType
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate
us-gaap:SubsidiarySaleOfStock
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum
us-gaap:SubsidiarySaleOfStock
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice

us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment

nvcr:AdvancesAndReceivablesFromSuppliers
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
nvcr:DebtInstrumentConvertibleCarryingAmountOfEquityComponentGross
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
nvcr:DebtInstrumentCovenantComplianceHoldersMinimumFaceAmount
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
nvcr:DebtIssuanceCostsEquityComponent

nvcr:DeferredTaxAssetsRevenueRecognition

nvcr:EmployeeRelatedLiabilitiesNonCurrent

nvcr:FieldEquipmentAccumulatedDepreciation

nvcr:FieldEquipmentGrossNoncurrent

nvcr:FieldEquipmentNetNoncurrent

nvcr:GovernmentRelatedLiabilitiesCurrent
us-gaap:CreditFacility, us-gaap:LongtermDebtType
nvcr:LineOfCreditFacilityAccordionFeatureIncreaseLimit

nvcr:OperatingLeaseCommitments

nvcr:OtherAccountsPayableLeaseLiabilitesAndAccruedExpensesCurrent

nvcr:OtherAccountsPayableLeaseLiabilitiesAndAccruedExpensesCurrent

nvcr:ReceivablesAndPrepaidExpenses
us-gaap:TypeOfArrangement
nvcr:RegulatoryAndCommercialMilestonePayable

nvcr:UnrecognizedTaxBenefitsClassifiedAsLongTermLiabilities

us-gaap:AccountsPayableTradeCurrent

us-gaap:CapitalizedComputerSoftwareNet

us-gaap:ContractWithCustomerLiabilityNoncurrent

us-gaap:ContractualObligation
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentConvertibleCarryingAmountOfTheEquityComponent
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentConvertibleConversionPrice1
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentFaceAmount
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentUnamortizedDiscount
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DeferredFinanceCostsNet

us-gaap:DeferredIncomeTaxLiabilities

us-gaap:DeferredRevenue

us-gaap:DeferredTaxAssetInterestCarryforward

us-gaap:DeferredTaxAssetsDeferredIncome

us-gaap:DeferredTaxAssetsGoodwillAndIntangibleAssets

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsOperatingLossCarryforwards

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsDomestic

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsForeign
us-gaap:IncomeTaxAuthority
us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsNotSubjectToExpiration

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal

us-gaap:DeferredTaxAssetsOther

us-gaap:DeferredTaxAssetsTaxCreditCarryforwardsResearch

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost

us-gaap:DeferredTaxLiabilitiesOther

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment

us-gaap:DefinedBenefitPlanAmountsRecognizedInBalanceSheet

us-gaap:DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent

us-gaap:DefinedBenefitPlanBenefitObligation

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo

us-gaap:DefinedBenefitPlanFairValueOfPlanAssets

us-gaap:DefinedBenefitPlanFundedStatusOfPlan

us-gaap:DefinedBenefitPlanPlanAssetsTargetAllocationPercentage
us-gaap:DefinedBenefitPlanByPlanAssetCategories

us-gaap:DepositsAssets

us-gaap:EmployeeRelatedLiabilitiesCurrent

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized

us-gaap:GovernmentContractReceivable

us-gaap:HeldToMaturitySecuritiesCurrent

us-gaap:HeldToMaturitySecuritiesFairValue

us-gaap:InventoryFinishedGoodsNetOfReserves

us-gaap:InventoryRawMaterialsNetOfReserves

us-gaap:InventoryWorkInProcessNetOfReserves

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths
us-gaap:CreditFacility, us-gaap:LongtermDebtType
us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:LongTermDebtFairValue

us-gaap:MoneyMarketFundsAtCarryingValue

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent

us-gaap:OtherAccountsPayableAndAccruedLiabilities

us-gaap:OtherPrepaidExpenseCurrent

us-gaap:PrepaidExpenseCurrent

us-gaap:RestrictedCashCurrent

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue
us-gaap:AwardType
us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueNonvested

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1

Plots across concepts


IncomeStatement
Net Income Loss
Expenses
Income Tax Expense Benefit
Balance Sheet
Operating Lease Right Of Use Asset
Assets
Property Plant And Equipment Net
Current Assets
Inventory Net
NonCurrent Assets
Other Assets Noncurrent
PropertyPlantAndEquipmentNet
Property Plant And Equipment Net
Liabilities
Operating Lease Liability
Current Liabilities
Operating Lease Liability 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
NetCashProvidedByUsedInFinancingActivities
Repayments Of Long Term Debt
Shares
Weighted Average Number Of Diluted Shares Outstanding
OperatingLeaseLiability
Operating Lease Liability Current
LesseeOperatingLeaseLiabilityPaymentsDue
Lessee Operating Lease Liability Payments Due Year Four
InventoryNet
Inventory Raw Materials Net Of Reserves

Tables

  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding ▅▄█▇▇▇▇▇▂▁103.484866102.633545110.604714108.643814107.647802108.100623107.911519107.60457896.35631794.811282NA92.911375NANANANANANANANANANANANANANANANA
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic █▇▇▆▆▅▅▄▂▁103.484866102.633545101.945085101.234306100.71889399.87756799.22644598.48551996.35631794.811282NA92.911375NANANANANANANANANANANANANANANANA
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount ▁█9.0987889.734269NANA1.148420.352291NANANANANANANANANANANANANANANANANANANANANANA
us-gaap:EarningsPerShareBasic ▂▄▇█▆▇▇▆▅▂▁▂-0.14-0.040.050.090.020.040.040.02-0.01-0.13-0.16999999999999993-0.13NANANANANANANANANANANANANANANANA
us-gaap:EarningsPerShareDiluted ▂▄▇█▆▇▇▆▅▂▁▂-0.14-0.040.040.090.020.040.040.02-0.01-0.13-0.16999999999999993-0.13NANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
us-gaap:AllocatedShareBasedCompensationExpense █▆▆▆▆▅▅▄▄▃▃▃▃▃▂▃▃▂▂▂▂▂▂▁▁▁▁▁27.88118.86320.27320.12118.7716.55714.69714.33813.7329.64910.64110.47910.2068.526.3568.6297.574.5614.7225.6265.6375.4564.4882.9282.6321.8121.271.205
us-gaap:ComprehensiveIncomeNetOfTax ▅▆▇█▇▇▇▇▆▅▄▅▄▄▅▅▄▄▄▂▁▂▂▃▃-13.812-2.2444.3219.581.7523.094.1341.646-1.885-12.492-15.904-11.549-15.455-20.709-10.826-11.221-20.99-18.083-21.966-34.029-40.321-35.907-34.433-23.273-29.357NANANA
us-gaap:CostOfRevenue █▇██▇▇▇▆▆▆▇▅▆▅▅▄▄▃▃▃▃▂▂▂▂▁▁▁28.59926.38528.13628.39525.47424.49624.78622.921.10619.81423.02818.94919.83318.23815.6415.15313.15211.66410.97311.1189.7977.9826.3045.6594.753.8972.632.586
us-gaap:GeneralAndAdministrativeExpense ██▇▇▆▆▆▅▅▅▅▄▄▄▄▄▄▃▃▃▃▃▃▂▂▁▂▁32.7631.12528.36427.06125.40426.60823.7522.71121.24920.23819.06818.85518.20817.32516.45415.21515.02312.42212.99712.72313.03112.25611.1168.4057.3686.9758.2525.033
us-gaap:GrossProfit ▇██▇▆▆▅▅▅▄▄▄▃▃▃▃▂▂▂▂▁▁▁▁▁▁▁▁104.918108.31115.817104.26590.45177.33274.44869.16265.60753.49546.64645.80741.68133.88738.02134.95625.22423.21619.26810.5561.715.0716.0793.2941.7931.3111.1711.788
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest ▅▆██▇▆▆▇▆▅▅▅▅▄▅▅▄▄▃▂▁▂▂▃▂▃▃▄-13.235-2.7348.82511.0394.051-5.813-1.5921.3-0.043-8.489-10.824-7.643-9.945-17.53-6.89-8.075-17.713-15.819-20.731-30.454-37.792-32.487-31.48-25.047-28.082-22.537-23.062-17.958
us-gaap:IncomeTaxExpenseBenefit ▆▆▇▆▇▁▃▅▆▇█▇█▇▇▇▇▆▆▇▇▇▆▆▆▆▅▆1.4061.3943.9081.7552.396-9.765-5.852-0.631.2273.6614.8074.0515.5653.1944.0553.4233.4612.2261.4373.1742.822.951.4480.9761.2750.736-0.1460.362
us-gaap:IncomeTaxesPaidNet ▆▅▁▇▇▆▆▆▇▆▇▇█▇▆▆▆▇▆▇▆▆▆▆▆▅▅2.49-2.405-14.584.3824.7282.2090.813.044.3583.0334.1914.1458.2563.7583.0492.3351.53.4021.6544.6241.5871.5820.6660.6580.1710.0950.052NA
us-gaap:InterestAndDebtExpense ▂▅▆▇▅▄▃▅▃▄▄▄▅█▄▄▄▄▅▄▂▂▂▂▂▂▁▁0.942.6463.2673.9832.6172.4321.7452.5551.2392.3712.162.3972.864.8532.3842.1562.1832.4462.8542.1890.5550.5490.8740.8090.8760.5910.0530.053
 us-gaap:InterestExpenseDebt us-gaap:DebtInstrument,us-gaap:LongtermDebtType nvcr:A0ConvertibleSeniorNotesDue2025,us-gaap:ConvertibleDebt█▁0.9760.709NANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:InterestPaidNet ▁▁▁▅█████████▇▆▆▆0.0010.0010.0151.843.4153.4153.4523.4533.4153.3793.4553.4543.4163.0092.5592.5612.533NANANANANANANANANANANA
us-gaap:NetIncomeLoss ▅▆▇█▇▇▇▇▇▅▅▅▅▄▅▅▄▄▄▂▁▂▂▃▃▃▃▄-14.641-4.1284.9179.2841.6553.9524.261.93-1.27-12.15-15.631-11.694-15.51-20.724-10.945-11.498-21.174-18.045-22.168-33.628-40.612-35.437-32.928-26.023-29.357-23.273-22.916-18.32
 us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents us-gaap:RetainedEarnings▁█-14.641-4.128NA9.2841.6553.952NA1.93-1.27-12.15-15.631-11.694-15.51-20.724-10.945-11.498-21.174-18.045-22.168-33.628-40.612-35.437-32.928NANANANANA
us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic NA-4.128NANANA3.952NANANANANANANANANANANANANANANANANANANANANANA
us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted NA-4.128NANANA3.952NANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OperatingExpenses █▇▇▆▆▅▅▄▄▄▄▃▃▃▃▃▃▂▂▂▂▂▂▂▂▁▁▁117.213108.398103.72589.24383.78380.71374.29565.30764.41159.61355.3151.05348.76646.56442.52740.87540.75436.58937.14638.82138.94737.00936.68527.53228.99923.25724.1819.693
us-gaap:OperatingIncomeLoss ▄▆██▇▆▆▇▆▅▅▅▅▄▅▅▄▄▄▂▁▂▂▃▂▃▃▄-12.295-0.08812.09215.0226.668-3.3810.1533.8551.196-6.118-8.664-5.246-7.085-12.677-4.506-5.919-15.53-13.373-17.877-28.265-37.237-31.938-30.606-24.238-27.206-21.946-23.009-17.905
us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax █▁▃▅▅▂▅▂▄▁▄▄▄▄▄▄▄▄▃▄▄0.413-0.268-0.1110.1430.084-0.20.126-0.2160.047-0.2610.008-0.0020.0110.010.0-0.0020.0010.011-0.0540.0080.056NANANANANANANA
us-gaap:OtherComprehensiveIncomeLossNetOfTax ▁█0.8291.884NA0.2960.097-0.862NA-0.284-0.615-0.342-0.2730.1460.0550.0150.1190.2770.182-0.0380.202-0.4010.291-0.47NANANANANANA
us-gaap:ResearchAndDevelopmentExpense █▇▇▅▅▄▄▃▃▂▂▂▁▁▁▁▁▁▁▁▁▁▁▁▂▁▁▁50.31545.91644.00232.81829.91825.27123.74118.76619.45417.04215.03413.07411.36211.10410.0489.2739.3719.4118.47110.23311.31811.44510.84510.21112.7659.92711.199.276
us-gaap:Revenues ▇██▇▇▆▆▅▅▄▄▄▄▃▃▃▃▃▂▂▂▁▁▁▁▁▁▁133.517134.695143.953132.66115.925101.82899.23492.06286.71373.30969.67464.75661.51452.12553.66150.10938.37634.8830.24221.67417.91913.05312.3838.9536.5435.2083.8014.374
us-gaap:SellingAndMarketingExpense █▇▇▇▇▇▆▆▆▅▅▄▄▄▄▄▄▃▄▄▃▃▃▂▂▁▁▁34.13831.35731.35929.36428.46128.83426.80423.8323.70822.33321.20819.12419.19618.13516.02516.38716.3614.75615.67815.86514.59813.30814.7248.9168.8666.3554.7385.384
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
us-gaap:Assets ███▃▄▃▃▃▃▂▂▂▂▂▂▂▂▂▂▂▂▂▂▁1097.0591067.631051.983431.049528.939502.448479.448443.858406.189370.255339.793315.512309.876303.479265.298262.278257.042264.628282.081291.093250.519279.018307.336173.781NANA117.876NA
us-gaap:Liabilities ██▇▂▃▃▃▃▃▃▃▃▃▃▂▂▂▂▂▂▁▁▁▁699.79695.496575.457124.012261.117260.5261.658253.493247.283243.861227.534200.576197.795197.361151.734145.593139.497135.728139.736132.8563.87358.59256.51652.557NANA20.001NA
us-gaap:LiabilitiesAndStockholdersEquity ███▃▄▃▃▃▃▂▂▂▂▂▂▂▂▂▂▂▂▂▂▁1097.0591067.631051.983431.049528.939502.448479.448443.858406.189370.255339.793315.512309.876303.479265.298262.278257.042264.628282.081291.093250.519279.018307.336173.781NANA117.876NA
us-gaap:StockholdersEquity ▇▆█▅▄▄▃▃▂▁▁▁▁▁▁▁▁▁▂▂▃▃▄▁397.269372.134476.526307.037267.822241.948217.79190.365158.906126.394112.259114.936112.081106.118113.564116.685117.545128.9142.345158.243186.646220.426250.82121.224NANA97.875NA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
us-gaap:AssetsCurrent ███▃▄▃▃▃▃▂▂▂▂▂▂▂▂▂▂▂▂▂▂▁1045.5661015.236999.441383.485487.781462.178439.947406.942369.983335.673321.369296.825289.889282.842245.134241.887236.492243.46261.873271.43234.698263.641293.904158.802NANA111.83NA
us-gaap:Cash ██▅▆▄▂▄▁▂▂▂33.30331.84920.33925.59517.5898.19218.3775.8518.8969.1049.197NANANANANANANANANANANANANANANANANA
us-gaap:CashAndCashEquivalentsAtCarryingValue █▇▅▅▄▄▄▅▄▃▃▃▂▂▂▂▂▂▂▂▂▂▂▂▂▁▁▂349.124314.547234.674234.461196.784181.919177.321208.034180.073152.067140.622122.959114.456111.60378.59282.10480.1984.58799.78115.82280.871115.932119.423110.324106.50874.21857.61379.977
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents █▇▅▅▄▄▃▄▄▃▃▂▂▂▁▁▁▁▁360.587325.977246.173235.381197.585182.705179.416210.168182.183154.161142.756125.158116.625113.76180.71884.23381.72786.123100.048NANANA119.51NANANANANA
us-gaap:AccountsReceivableNetCurrent ███▇▆▆▅▄▄▄▃▃▃▃▃▂▂▁▁90.43692.51496.69984.56176.02665.13958.85949.90442.53339.2236.52335.38837.64334.04429.56723.013.88811.8256.339NANANA0.0NANANANANA
us-gaap:InventoryNet ▇██▇▇▆▆▇▇▆▆▅▅▅▆▇▇▇▇▆▅▃▂▁26.6927.96827.42226.47926.13622.50223.70124.38825.45424.13822.55521.64119.90620.38622.02524.64225.14725.94925.54923.97221.21516.44613.59411.149NANA3.446NA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
us-gaap:NoncurrentAssets ██▇▆▅▅▄▄▄▄▄▄▄▅▅▅▅▆▅▅▃▃▂▁23.89923.86522.62519.40318.86918.24517.02616.56415.86515.68715.36615.86416.99917.92218.06718.30918.68219.31718.6217.92814.66314.312.58110.622NANA5.749NA
us-gaap:AssetsNoncurrent ███▇▆▆▆▅▅▅▂▂▂▂▂▂▂▂▂▂▁▁▁▁51.49352.39452.54247.56441.15840.2739.50136.91636.20634.58218.42418.68719.98720.63720.16420.39120.5521.16820.20819.66315.82115.37713.43214.979NANA6.046NA
us-gaap:PropertyPlantAndEquipmentGross NANA29.821NANANA23.988NANANA19.948NANANA17.972NANANA16.116NANANA10.489NANANA6.083NA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType nvcr:ComputersAndLaboratoryEquipmentNANA18.821NANANA15.448NANANA12.22NANANA10.833NANANA10.121NANANA6.734NANANA3.745NA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:EquipmentNANA1.628NANANA1.237NANANA1.228NANANA1.222NANANA1.179NANANA0.857NANANANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:FurnitureAndFixturesNANA2.871NANANA2.486NANANA2.308NANANA2.303NANANA1.931NANANA1.245NANANA0.995NA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:LeaseholdImprovementsNANA6.501NANANA4.818NANANA4.192NANANA3.614NANANA2.885NANANA1.653NANANA1.343NA
us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment NANA18.426NANANA14.647NANANA11.506NANANA8.941NANANA6.304NANANA3.937NANANA2.351NA
us-gaap:PropertyPlantAndEquipmentNet ██▇▆▆▅▅▄▄▄▄▄▄▄▅▅▅▆▆▆▄▂▂▁11.85711.73311.39510.27110.539.7789.3428.4258.3998.4218.4428.5648.8918.9029.0319.3619.62110.0399.8129.8868.8137.096.5526.106NANA3.732NA
us-gaap:OperatingLeaseRightOfUseAsset ▇██▇▇▇▇▆▆▆▁16.96417.74119.00917.12217.42917.20117.57114.63514.65913.920.0NANANANANANANANANANANANANANANANANA
us-gaap:OtherAssetsNoncurrent ████▄▄▄▄▄▄▂▂▂▂▂▂▂▂▁▂▁▁▁▂10.6310.78810.90811.0394.864.8244.9045.7175.6824.9752.9452.7092.8772.6021.9861.9781.7661.7561.51.6461.0760.9920.7721.705NANA0.227NA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
us-gaap:LiabilitiesCurrent ███▆▆▆▆▅▅▄▄▃▂▂▃▂▂▁▂▁▂▁▁▁116.206110.487113.61295.33485.12184.20386.31180.40573.56770.94864.5648.08745.24744.75950.20240.98535.17131.91536.88229.71234.61829.42828.62725.915NANA17.669NA
us-gaap:OperatingLeaseLiabilityCurrent NANA6.483NANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherAccruedLiabilitiesCurrent NANA6.544NANANA4.699NANANA0.032NANANA0.144NANANA0.076NANANA0.764NANANA0.097NA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
us-gaap:LiabilitiesNoncurrent ██▆▁▃▃▃▃▃▃▃▃▃▃▂▂▂▂▂▂▁▁▁▁583.584585.009461.84528.678175.996176.297175.347173.088173.716172.913162.974152.489152.548152.602101.532104.608104.326103.813102.854103.13829.25529.16427.88926.642NANA2.332NA
us-gaap:LongTermDebt NANA429.905NANANA149.424NANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LongTermDebt us-gaap:DebtInstrument,us-gaap:LongtermDebtType nvcr:A0ConvertibleSeniorNotesDue2025,us-gaap:ConvertibleDebt██▁560.562559.584429.905NANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LongTermDebtNoncurrent ██▁560.562559.584429.905NA149.507149.465149.424149.384149.344149.305149.268149.231149.195149.1697.34297.04996.76596.49296.23195.9723.29223.19323.09724.554NANA0.0NA
us-gaap:LongTermDebtAndCapitalLeaseObligations NANA0.04NANANA0.066NANANA0.094NANANA0.128NANANA0.193NANANA0.254NANANA0.321NA
us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent NANA22.754NANANA15.686NANANA12.249NANANA10.317NANANA8.242NANANA6.223NANANANANA
us-gaap:OtherLiabilitiesNoncurrent ▁▁▁▁▁▁▁▁▁▁▂▂▂▂▃██▇▇▇▆▅▅▃0.1730.1770.3370.1680.1730.2670.2220.2950.3060.3631.0940.9110.880.921.7375.074.8824.5654.0334.0363.3713.1482.7351.84NANA2.086NA
us-gaap:OperatingLeaseLiabilityNoncurrent ▇▇█▇███▇▇▆▁11.94412.70814.29313.0813.66813.27414.1411.36711.58211.0150.0NANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo NANA5.76NANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree NANA3.45NANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour NANA2.525NANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive NANA1.456NANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive NANA3.99NANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
us-gaap:StockholdersEquity ▇▆█▅▄▄▃▃▂▁▁▁▁▁▁▁▁▁▂▂▃▃▄▁397.269372.134476.526307.037267.822241.948217.79190.365158.906126.394112.259114.936112.081106.118113.564116.685117.545128.9142.345158.243186.646220.426250.82121.224NANA97.875NA
us-gaap:AdditionalPaidInCapital ▇▇█▆▆▆▅▅▅▄▄▄▄▄▃▃▃▃▃▃▃▃▃▁1044.7321005.7851111.435946.267916.632892.51871.442848.151818.338783.941757.314744.087729.684708.266697.165689.46679.099669.462664.154658.086652.46645.919640.406476.377NANA374.375NA
us-gaap:RetainedEarningsAccumulatedDeficit ▁▂▂▁▁▁▁▁▁▁▁▂▂▂▃▃▃▄▄▅▅▆▇█-646.344-631.703-631.077-635.994-645.278-646.933-650.885-655.145-657.075-655.805-643.655-628.024-616.33-600.82-582.258-571.313-559.815-538.641-519.926-497.758-464.13-423.518-388.081-355.153NANA-276.5NA
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax █▆▁▃▂▂▄▄▅▆▇██▇▇▇▆▆▆▆▇▆▇-1.119-1.948-3.832-3.236-3.532-3.629-2.767-2.641-2.357-1.742-1.4-1.127-1.273-1.328-1.343-1.462-1.739-1.921-1.883-2.085-1.684-1.975-1.505NANANA0.0NA
us-gaap:StockIssuedDuringPeriodValueNewIssues 2.371NANANA1.667NANANA1.208NA0.8970.00.938NANANANANANANANANANANANANANANA
us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue █▁27.88118.863NA20.12118.7716.557NA14.33813.7329.64910.64110.47910.2068.526.3568.6297.574.5614.7225.6265.6375.4564.488NANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
us-gaap:NetCashProvidedByUsedInOperatingActivities ▅▄█▆▄▃▃▄▄▂▄▃▂▁▂▃▂26.17217.7853.48130.96912.7411.9576.96214.9079.066-4.31516.8145.638-7.493-16.824-2.8982.547-5.875NANANANANANANANANANANA
us-gaap:NetCashProvidedByUsedInInvestingActivities ▇▇▁█▇▇▆▇▇▇▇▇▇▇▇▇▇-2.61854.171-613.638147.218-3.315-3.112-46.756-2.174-1.748-0.989-1.789-1.005-0.842-1.857-1.946-1.752-0.587NANANANANANANANANANANA
us-gaap:NetCashProvidedByUsedInFinancingActivities ▂▂█▁▂▂▂▃▃▃▂▂▂▃▂▂▂11.0597.955570.854-140.4935.3454.5038.58615.46820.65716.972.5653.90211.18851.7141.3291.7132.067NANANANANANANANANANANA
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect ▅█▄▅▄▃▁▅▅▄▄▃▃▅34.6179.80410.79237.79614.883.289-30.75227.98528.02211.40517.5988.5332.86433.043NANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
 us-gaap:AmortizationOfFinancingCosts us-gaap:DebtInstrument,us-gaap:LongtermDebtType nvcr:A0ConvertibleSeniorNotesDue2025,us-gaap:ConvertibleDebt█▁0.9760.709NANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:IncreaseDecreaseInAccountsReceivable ▁▁▁▅▄██▅▃▃▃▂▃▃▄▅▃▄-3.026-4.624-3.2027.6786.1619.71819.4769.9863.3132.6971.135-2.2553.5991.6726.5679.1122.0645.486NANANANANANANANANANA
us-gaap:IncreaseDecreaseInInventories ▂▅▄▄▇▂▃▂▅▅▄▅▃▂▁▃▃▄▅▆█▆▆▆▅▇▄-1.6631.2960.4890.0553.539-1.147-0.673-1.0671.3161.5830.9141.735-0.482-1.638-2.617-0.504-0.8030.41.5772.7574.7692.8522.4452.5561.4153.7320.75NA
us-gaap:NetCashProvidedByUsedInOperatingActivities ▅▄█▆▄▃▃▄▄▂▄▃▂▁▂▃▂26.17217.7853.48130.96912.7411.9576.96214.9079.066-4.31516.8145.638-7.493-16.824-2.8982.547-5.875NANANANANANANANANANANA
us-gaap:NetIncomeLoss ▅▆▇█▇▇▇▇▇▅▅▅▅▄▅▅▄▄▄▂▁▂▂▃▃▃▃▄-14.641-4.1284.9179.2841.6553.9524.261.93-1.27-12.15-15.631-11.694-15.51-20.724-10.945-11.498-21.174-18.045-22.168-33.628-40.612-35.437-32.928-26.023-29.357-23.273-22.916-18.32
 us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents us-gaap:RetainedEarnings▁█-14.641-4.128NA9.2841.6553.952NA1.93-1.27-12.15-15.631-11.694-15.51-20.724-10.945-11.498-21.174-18.045-22.168-33.628-40.612-35.437-32.928NANANANANA
us-gaap:ShareBasedCompensation █▆▆▆▆▅▅▄▄▃▃▃▃▃▂▃▃▂▂▂▂▂▂▁▁▁▁27.88118.86320.27320.12118.7716.55714.69714.33813.7329.64910.64110.47910.2068.526.3568.6297.574.5615.425.6265.6375.4564.4882.9282.6321.8121.27NA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
us-gaap:NetCashProvidedByUsedInInvestingActivities ▇▇▁█▇▇▆▇▇▇▇▇▇▇▇▇▇-2.61854.171-613.638147.218-3.315-3.112-46.756-2.174-1.748-0.989-1.789-1.005-0.842-1.857-1.946-1.752-0.587NANANANANANANANANANANA
us-gaap:PaymentsToAcquirePropertyPlantAndEquipment ▄▆█▄▅▅▄▄▂▂▁▁▂▁▁▁▁▂▁▃▄▂▂▂▃▁▁2.6183.9815.7592.7823.3153.1123.0552.7080.8920.860.7520.5730.8540.7370.5080.5440.3761.0310.6191.7152.3381.0021.0541.1961.8080.6090.406NA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
us-gaap:NetCashProvidedByUsedInFinancingActivities ▂▂█▁▂▂▂▃▃▃▂▂▂▃▂▂▂11.0597.955570.854-140.4935.3454.5038.58615.46820.65716.972.5653.90211.18851.7141.3291.7132.067NANANANANANANANANANANA
us-gaap:RepaymentsOfLongTermDebt ▁▁▁█▁▁▁▁▁▁▁▁▁▆0.0070.0060.006150.0070.0070.0080.0080.0070.0080.008-0.0630.0220.0100.0NANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:DebtInstrument,us-gaap:LongtermDebtType nvcr:A0ConvertibleSeniorNotesDue2025,us-gaap:ConvertibleDebtNANANANANANANANANANANANANANANANANANANANANANANANANANANANA

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding


Weighted
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-09-30
Value103102110108107108107107969492
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic


Weighted
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-09-30
Value103102101101100999998969492
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount


Antidilutive
Period End2021-06-302021-03-312020-06-302020-03-31
Value9098800.09734300.01148400.0352290.0
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount100.0100.0100.0100.0

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities

us-gaap:EmployeeStockOption


Antidilutive
Period End2020-09-302020-06-302020-03-31
Value952820.01148400.0352290.0
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount0.0100.0100.0

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareBasic


Earnings
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
Value-0.14-0.040.050.090.020.040.040.02-0.01-0.13-0.17-0.13
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareDiluted


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-0.14-0.040.040.090.020.040.040.02-0.01-0.13-0.17-0.13
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Allocated Share Based Compensation Expense

us-gaap:AllocatedShareBasedCompensationExpense

us-gaap:AllocatedShareBasedCompensationExpense


Allocated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value2718202018161414139.6491010108.526.3568.6297.574.5614.7225.6265.6375.4564.4882.9282.6321.8121.271.205
Percentage of AllocatedShareBasedCompensationExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues20.914.014.115.216.216.314.815.615.813.215.316.216.616.311.817.219.713.115.626.031.541.836.232.740.234.833.427.5

us-gaap:AllocatedShareBasedCompensationExpense us-gaap:IncomeStatementLocation

nvcr:CostOfRevenue


Allocated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value0.8270.7330.3050.7670.5590.590.6050.6050.5950.4260.370.4640.2630.1640.1140.0790.1310.1430.1520.160.170.1410.120.0350.0060.0130.0010.014
Percentage of AllocatedShareBasedCompensationExpense3.03.91.53.83.03.64.14.24.34.43.54.42.61.91.80.91.73.13.22.83.02.62.71.20.20.70.11.2
Percentage of Revenues0.60.50.20.60.50.60.60.70.70.60.50.70.40.30.20.20.30.40.50.70.91.11.00.40.10.20.00.3
Percentage of Revenues nvcr:CostOfRevenue0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

nvcr:SalesAndMarketing


Allocated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value6.4294.4714.6114.6774.7693.6163.3123.3683.2551.9622.0841.9791.8931.436-0.481.8741.7350.6551.2231.2491.3491.290.9460.5710.5710.4080.2970.262
Percentage of AllocatedShareBasedCompensationExpense23.123.722.723.225.421.822.523.523.720.319.618.918.516.9-7.621.722.914.425.922.223.923.621.119.521.722.523.421.7
Percentage of Revenues4.83.33.23.54.13.63.33.73.82.73.03.13.12.8-0.93.74.51.94.05.87.59.97.66.48.77.87.86.0
Percentage of Revenues nvcr:SalesAndMarketing0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:GeneralAndAdministrativeExpense


Allocated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value128.5359.5079.5769.6638.9578.4138.1638.0696.0736.8936.8136.7646.0145.785.7044.8932.9012.573.4413.2793.2622.611.6541.4270.970.6950.675
Percentage of AllocatedShareBasedCompensationExpense43.545.246.947.651.554.157.256.958.862.964.865.066.370.690.966.164.663.654.461.258.259.858.256.554.253.554.756.0
Percentage of Revenues9.16.36.67.28.38.88.58.99.38.39.910.511.011.510.811.412.88.38.515.918.325.021.118.521.818.618.315.4
Percentage of Revenues us-gaap:GeneralAndAdministrativeExpense0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ResearchAndDevelopmentExpense


Allocated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value8.5055.1245.855.1013.7793.3942.3672.2021.8131.1881.2941.2231.2860.9060.9420.9720.8110.8620.7770.7760.8390.7630.8120.6680.6280.4210.2770.254
Percentage of AllocatedShareBasedCompensationExpense30.527.228.925.420.120.516.115.413.212.312.211.712.610.614.811.310.718.916.513.814.914.018.122.823.923.221.821.1
Percentage of Revenues6.43.84.13.83.33.32.42.42.11.61.91.92.11.71.81.92.12.52.63.64.75.86.67.59.68.17.35.8
Percentage of Revenues us-gaap:ResearchAndDevelopmentExpense0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Comprehensive Income Net Of Tax

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTax


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-30
Value-13.812-2.2444.3219.581.7523.094.1341.646-1.885-12.492-15.904-11.549-15.455-20.709-10.826-11.221-20.99-18.083-21.966-34.029-40.321-35.907-34.433-23.273-29.357
Percentage of ComprehensiveIncomeNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-10.3-1.73.07.21.53.04.21.8-2.2-17.0-22.8-17.8-25.1-39.7-20.2-22.4-54.7-51.8-72.6-157.0-225.0-275.1-278.1-259.9-448.7

Cost Of Revenue

us-gaap:CostOfRevenue

us-gaap:CostOfRevenue


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value28262828252424222119231819181515131110119.7977.9826.3045.6594.753.8972.632.586
Percentage of CostOfRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues21.419.619.521.422.024.125.024.924.327.033.129.332.235.029.130.234.333.436.351.354.761.250.963.272.674.869.259.1

General And Administrative Expense

us-gaap:GeneralAndAdministrativeExpense

us-gaap:GeneralAndAdministrativeExpense


General
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value32312827252623222120191818171615151212121312118.4057.3686.9758.2525.033
Percentage of GeneralAndAdministrativeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues24.523.119.720.421.926.123.924.724.527.627.429.129.633.230.730.439.135.643.058.772.793.989.893.9112.6133.9217.1115.1

Gross Profit

us-gaap:GrossProfit

us-gaap:GrossProfit


Gross
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value104108115104907774696553464541333834252319101.715.0716.0793.2941.7931.3111.1711.788
Percentage of GrossProfit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues78.680.480.578.678.075.975.075.175.773.066.970.767.865.070.969.865.766.663.748.79.538.849.136.827.425.230.840.9

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

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value-13.235-2.7348.825114.051-5.813-1.5921.3-0.043-8.489-10.824-7.643-9.945-17.53-6.89-8.075-17.713-15.819-20.731-30.454-37.792-32.487-31.48-25.047-28.082-22.537-23.062-17.958
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-9.9-2.06.18.33.5-5.7-1.61.4-0.0-11.6-15.5-11.8-16.2-33.6-12.8-16.1-46.2-45.4-68.6-140.5-210.9-248.9-254.2-279.8-429.2-432.7-606.7-410.6

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxExpenseBenefit


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value1.4061.3943.9081.7552.396-9.765-5.852-0.631.2273.6614.8074.0515.5653.1944.0553.4233.4612.2261.4373.1742.822.951.4480.9761.2750.736-0.1460.362
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues1.11.02.71.32.1-9.6-5.9-0.71.45.06.96.39.06.17.66.89.06.44.814.615.722.611.710.919.514.1-3.88.3

Income Taxes Paid Net

us-gaap:IncomeTaxesPaidNet

us-gaap:IncomeTaxesPaidNet


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value2.49-2.405-14.584.3824.7282.2090.813.044.3583.0334.1914.1458.2563.7583.0492.3351.53.4021.6544.6241.5871.5820.6660.6580.1710.0950.052
Percentage of IncomeTaxesPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues1.9-1.8-10.13.34.12.20.83.35.04.16.06.413.47.25.74.73.99.85.521.38.912.15.47.32.61.81.4

Interest And Debt Expense

us-gaap:InterestAndDebtExpense

us-gaap:InterestAndDebtExpense


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value0.942.6463.2673.9832.6172.4321.7452.5551.2392.3712.162.3972.864.8532.3842.1562.1832.4462.8542.1890.5550.5490.8740.8090.8760.5910.0530.053
Percentage of InterestAndDebtExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues0.72.02.33.02.32.41.82.81.43.23.13.74.69.34.44.35.77.09.410.13.14.27.19.013.411.31.41.2

Interest Expense Debt

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

us-gaap:InterestExpenseDebt

nvcr:A0ConvertibleSeniorNotesDue2025, us-gaap:ConvertibleDebt


Interest
Period End2021-06-302021-03-31
Value0.9760.709
Percentage of InterestExpenseDebt100.0100.0
Percentage of Revenues0.70.5
Percentage of Revenues nvcr:A0ConvertibleSeniorNotesDue2025 us-gaap:ConvertibleDebt0.00.0

Interest Paid Net

us-gaap:InterestPaidNet

us-gaap:InterestPaidNet


Interest
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
Value0.0010.0010.0151.843.4153.4153.4523.4533.4153.3793.4553.4543.4163.0092.5592.5612.533
Percentage of InterestPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues0.00.00.01.42.93.43.53.83.94.65.05.35.65.84.85.16.6

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value-14.641-4.1284.9179.2841.6553.9524.261.93-1.27-12.15-15.631-11.694-15.51-20.724-10.945-11.498-21.174-18.045-22.168-33.628-40.612-35.437-32.928-26.023-29.357-23.273-22.916-18.32
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-11.0-3.13.47.01.43.94.32.1-1.5-16.6-22.4-18.1-25.2-39.8-20.4-22.9-55.2-51.7-73.3-155.2-226.6-271.5-265.9-290.7-448.7-446.9-602.9-418.8

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value-14.641-4.1289.2841.6553.9521.93-1.27-12.15-15.631-11.694-15.51-20.724-10.945-11.498-21.174-18.045-22.168-33.628-40.612-35.437-32.928
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-11.0-3.17.01.43.92.1-1.5-16.6-22.4-18.1-25.2-39.8-20.4-22.9-55.2-51.7-73.3-155.2-226.6-271.5-265.9
Percentage of Revenues us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Net Income Loss Available To Common Stockholders Basic

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic


Net
Period End2021-03-312020-03-31
Value-4.1283.952
Percentage of NetIncomeLossAvailableToCommonStockholdersBasic100.0100.0
Percentage of Revenues-3.13.9

Net Income Loss Available To Common Stockholders Diluted

us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted

us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted


Net
Period End2021-03-312020-03-31
Value-4.1283.952
Percentage of NetIncomeLossAvailableToCommonStockholdersDiluted100.0100.0
Percentage of Revenues-3.13.9

Operating Expenses

us-gaap:OperatingExpenses

us-gaap:OperatingExpenses


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value11710810389838074656459555148464240403637383837362728232419
Percentage of OperatingExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues87.880.572.167.372.379.374.970.974.381.379.478.879.389.379.381.6106.2104.9122.8179.1217.4283.5296.3307.5443.2446.6636.1450.2

Operating Income Loss

us-gaap:OperatingIncomeLoss

us-gaap:OperatingIncomeLoss


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value-12.295-0.08812156.668-3.3810.1533.8551.196-6.118-8.664-5.246-7.085-12.677-4.506-5.919-15.53-13.373-17.877-28.265-37.237-31.938-30.606-24.238-27.206-21.946-23.009-17.905
Percentage of OperatingIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-9.2-0.18.411.35.8-3.30.24.21.4-8.3-12.4-8.1-11.5-24.3-8.4-11.8-40.5-38.3-59.1-130.4-207.8-244.7-247.2-270.7-415.8-421.4-605.3-409.4

Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value413000.0-268000.0-111000.0143000.084000.0-200000.0126000.0-216000.047000.0-261000.08000.0-2000.011000.010000.00-2000.01000.011000.0-54000.08000.056000.0
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues0.3-0.2-0.10.10.1-0.20.1-0.20.1-0.40.0-0.00.00.00.0-0.00.00.0-0.20.00.3

Other Comprehensive Income Loss Net Of Tax

us-gaap:OtherComprehensiveIncomeLossNetOfTax

us-gaap:OtherComprehensiveIncomeLossNetOfTax


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value829000.01884000.0296000.097000.0-862000.0-284000.0-615000.0-342000.0-273000.0146000.055000.015000.0119000.0277000.0182000.0-38000.0202000.0-401000.0291000.0-470000.0
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues0.61.40.20.1-0.8-0.3-0.7-0.5-0.40.20.10.00.20.60.5-0.10.7-1.91.6-3.6

us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value829000.01884000.0296000.097000.0-862000.0-284000.0-615000.0-342000.0-273000.0146000.055000.015000.0119000.0277000.0182000.0-38000.0202000.0-401000.0291000.0-470000.0
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues0.61.40.20.1-0.8-0.3-0.7-0.5-0.40.20.10.00.20.60.5-0.10.7-1.91.6-3.6
Percentage of Revenues us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Research And Development Expense

us-gaap:ResearchAndDevelopmentExpense

us-gaap:ResearchAndDevelopmentExpense


Research
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value5045443229252318191715131111109.2739.3719.4118.4711011111010129.927119.276
Percentage of ResearchAndDevelopmentExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues37.734.130.624.725.824.823.920.422.423.221.620.218.521.318.718.524.427.028.047.263.287.787.6114.1195.1190.6294.4212.1

Revenues

us-gaap:Revenues

us-gaap:Revenues


Revenues
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value13313414313211510199928673696461525350383430211713128.9536.5435.2083.8014.374
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Revenues us-gaap:StatementGeographical

country:CN


Revenuesus-gaap:
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
Value4.9315.5264.5294.2782.1411.6421.9491.4021.0890.8150.8190.0
Percentage of Revenues3.74.13.13.21.81.62.01.51.31.11.20.0
Percentage of Revenues3.74.13.13.21.81.62.01.51.31.11.20.0
Percentage of Revenues country:CN100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

country:DE


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value252627222121222122211917171313146.8175.47.141.7661.7660.892
Percentage of Revenues19.019.618.917.218.521.422.723.625.529.027.727.128.725.624.929.317.815.523.68.19.96.8
Percentage of Revenues19.019.618.917.218.521.422.723.625.529.027.727.128.725.624.929.317.815.523.68.19.96.8
Percentage of Revenues country:DE100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

country:JP


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value8.758.2787.9237.5237.1796.4515.5784.7794.1853.372.8541.9921.0570.4490.080.0520.1180.0530.0030.024
Percentage of Revenues6.66.15.55.76.26.35.65.24.84.64.13.11.70.90.10.10.30.20.00.1
Percentage of Revenues6.66.15.55.76.26.35.65.24.84.64.13.11.70.90.10.10.30.20.00.1
Percentage of Revenues country:JP100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

country:US


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value87859792816965615846444441373835312926181612118.5466.194.9743.5484.116
Percentage of Revenues65.363.867.969.870.168.066.466.768.063.663.468.768.272.572.470.481.783.687.683.790.092.090.995.594.695.593.394.1
Percentage of Revenues65.363.867.969.870.168.066.466.768.063.663.468.768.272.572.470.481.783.687.683.790.092.090.995.594.695.593.394.1
Percentage of Revenues country:US100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

nvcr:EMEAExculdingGermany


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value7.3358.6196.5855.4683.9272.6743.342.7941.4082.282
Percentage of Revenues5.56.44.64.13.42.63.43.01.63.1
Percentage of Revenues5.56.44.64.13.42.63.43.01.63.1
Percentage of Revenues nvcr:EMEAExculdingGermany100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Selling And Marketing Expense

us-gaap:SellingAndMarketingExpense

us-gaap:SellingAndMarketingExpense


Selling
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value34313129282826232322211919181616161415151413148.9168.8666.3554.7385.384
Percentage of SellingAndMarketingExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues25.623.321.822.124.628.327.025.927.330.530.429.531.234.829.932.742.642.351.873.281.5102.0118.999.6135.5122.0124.7123.1

Assets

us-gaap:Assets

us-gaap:Assets


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value109710671051431528502479443406370339315309303265262257264282291250279307173117
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Liabilities

us-gaap:Liabilities

us-gaap:Liabilities


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value6996955751242612602612532472432272001971971511451391351391326358565220
Percentage of Liabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets63.865.154.728.849.451.854.657.160.965.967.063.663.865.057.255.554.351.349.545.625.521.018.430.217.0

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:LiabilitiesAndStockholdersEquity


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value109710671051431528502479443406370339315309303265262257264282291250279307173117
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-312013-12-312012-12-31
Value3973724763072672412171901581261121141121061131161171281421581862202501219717149
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets36.234.945.371.250.648.245.442.939.134.133.036.436.235.042.844.545.748.750.554.474.579.081.669.883.00.00.0

us-gaap:StockholdersEquity us-gaap:CumulativeEffectPeriodOfAdoption

srt:CumulativeEffectPeriodOfAdoptionAdjustment


Stockholders
Period End2020-12-312017-12-31
Value-128.9722.162
Percentage of StockholdersEquity-27.11.9
Percentage of Assets-12.30.8
Percentage of Assets srt:CumulativeEffectPeriodOfAdoptionAdjustment0.00.0

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

srt:CumulativeEffectPeriodOfAdoptionAdjustment, us-gaap:AdditionalPaidInCapital


Stockholders
Period End2020-12-31
Value-132.474
Percentage of StockholdersEquity-27.8
Percentage of Assets-12.6
Percentage of Assets srt:CumulativeEffectPeriodOfAdoptionAdjustment us-gaap:AdditionalPaidInCapital0.0

srt:CumulativeEffectPeriodOfAdoptionAdjustment, us-gaap:RetainedEarnings


Stockholders
Period End2020-12-312017-12-31
Value3.5022.162
Percentage of StockholdersEquity0.71.9
Percentage of Assets0.30.8
Percentage of Assets srt:CumulativeEffectPeriodOfAdoptionAdjustment us-gaap:RetainedEarnings0.00.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value-1.119-1.948-3.832-3.236-3.532-3.629-2.767-2.641-2.357-1.742-1.4-1.127-1.273-1.328-1.343-1.462-1.739-1.921-1.883-2.085-1.684-1.975-1.505
Percentage of StockholdersEquity-0.3-0.5-0.8-1.1-1.3-1.5-1.3-1.4-1.5-1.4-1.2-1.0-1.1-1.3-1.2-1.3-1.5-1.5-1.3-1.3-0.9-0.9-0.6
Percentage of Assets-0.1-0.2-0.4-0.8-0.7-0.7-0.6-0.6-0.6-0.5-0.4-0.4-0.4-0.4-0.5-0.6-0.7-0.7-0.7-0.7-0.7-0.7-0.5
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 End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-312013-12-312012-12-31
Value104410051111946916892871848818783757744729708697689679669664658652645640476374367167
Percentage of StockholdersEquity263.0270.3233.2308.2342.3368.9400.1445.5515.0620.2674.6647.4651.0667.4613.9590.9577.7519.4466.6415.9349.6293.0255.3393.0382.5214.0339.7
Percentage of Assets95.294.2105.7219.5173.3177.6181.8191.1201.5211.7222.9235.8235.5233.4262.8262.9264.2253.0235.4226.1260.4231.5208.4274.1317.60.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-312013-12-312012-12-31
Value-646.344-631.703-631.077-635.994-645.278-646.933-650.885-655.145-657.075-655.805-643.655-628.024-616.33-600.82-582.258-571.313-559.815-538.641-519.926-497.758-464.13-423.518-388.081-355.153-276.5-195.818-118.448
Percentage of StockholdersEquity-162.7-169.8-132.4-207.1-240.9-267.4-298.9-344.2-413.5-518.9-573.4-546.4-549.9-566.2-512.7-489.6-476.3-417.9-365.3-314.6-248.7-192.1-154.7-293.0-282.5-114.0-239.7
Percentage of Assets-58.9-59.2-60.0-147.5-122.0-128.8-135.8-147.6-161.8-177.1-189.4-199.0-198.9-198.0-219.5-217.8-217.8-203.5-184.3-171.0-185.3-151.8-126.3-204.4-234.60.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Assets Current

us-gaap:AssetsCurrent

us-gaap:AssetsCurrent


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value10451015999383487462439406369335321296289282245241236243261271234263293158111
Percentage of AssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets95.395.195.089.092.292.091.891.791.190.794.694.193.693.292.492.292.092.092.893.293.794.595.691.494.9

Cash

us-gaap:Cash

us-gaap:Cash


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value33312025178.192185.8518.8969.1049.197
Percentage of Cash100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.03.01.95.93.31.63.81.32.22.52.7

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashAndCashEquivalentsAtCarryingValue


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302013-12-312012-12-31
Value34931423423419618117720818015214012211411178828084991158011511911010674577917534
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets31.829.522.354.437.236.237.046.944.341.141.439.036.936.829.631.331.232.035.439.832.341.638.963.50.00.048.90.00.00.0

us-gaap:CashAndCashEquivalentsAtCarryingValue us-gaap:CashAndCashEquivalents

us-gaap:Cash


Cash
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value20189.1975.522297547
Percentage of CashAndCashEquivalentsAtCarryingValue8.710.46.57.030.063.282.6
Percentage of Assets1.93.82.72.110.624.540.4
Percentage of Assets us-gaap:Cash0.00.00.00.00.00.00.0

us-gaap:MoneyMarketFunds


Cash
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value214158131736944
Percentage of CashAndCashEquivalentsAtCarryingValue91.389.693.593.070.036.8
Percentage of Assets20.433.238.727.524.814.3
Percentage of Assets us-gaap:MoneyMarketFunds0.00.00.00.00.00.0

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value36032524623519718217921018215414212511611380848186100119
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets32.930.523.454.637.436.437.447.444.941.642.039.737.637.530.432.131.832.535.538.9

Accounts Receivable Net Current

us-gaap:AccountsReceivableNetCurrent

us-gaap:AccountsReceivableNetCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value9092968476655849423936353734292313116.3390.0
Percentage of AccountsReceivableNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets8.28.79.219.614.413.012.311.210.510.610.711.212.111.211.18.85.44.52.20.0

Inventory Net

us-gaap:InventoryNet

us-gaap:InventoryNet


Inventory
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value2627272626222324252422211920222425252523211613113.446
Percentage of InventoryNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.42.62.66.14.94.54.95.56.36.56.66.96.46.78.39.49.89.89.18.28.55.94.46.42.9

Noncurrent Assets

us-gaap:NoncurrentAssets

us-gaap:NoncurrentAssets


Noncurrent
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value2323221918181716151515151617181818191817141412105.749
Percentage of NoncurrentAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.22.22.24.53.63.63.63.73.94.24.55.05.55.96.87.07.37.36.66.25.95.14.16.14.9

us-gaap:NoncurrentAssets us-gaap:StatementGeographical

country:CH


Noncurrent
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value3.3244.0482.8492.0121.7192.4723.0673.6952.8522.9392.5132.4114.2115.1785.1145.0574.3584.6934.3463.7696.3854.774.2042.9721.259
Percentage of NoncurrentAssets13.917.012.610.49.113.518.022.318.018.716.415.224.828.928.327.623.324.323.321.043.533.433.428.021.9
Percentage of Assets0.30.40.30.50.30.50.60.80.70.80.70.81.41.71.91.91.71.81.51.32.51.71.41.71.1
Percentage of Assets country:CH0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

country:DE


Noncurrent
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-31
Value0.9831.0841.0750.8950.9820.7110.7290.7780.8710.9581.0540.190.049
Percentage of NoncurrentAssets4.14.54.84.65.23.94.34.75.56.16.91.10.3
Percentage of Assets0.10.10.10.20.20.10.20.20.20.30.30.10.0
Percentage of Assets country:DE0.00.00.00.00.00.00.00.00.00.00.00.00.0

country:IL


Noncurrent
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value4.8344.5524.373.9983.7363.3662.7532.3932.4732.4282.2362.3522.2382.1122.0811.8841.7771.8791.9151.9341.8621.7751.3761.1561.009
Percentage of NoncurrentAssets20.219.119.320.619.818.416.214.415.615.514.614.813.211.811.510.39.59.710.310.812.712.410.910.917.6
Percentage of Assets0.40.40.40.90.70.70.60.50.60.70.70.70.70.70.80.70.70.70.70.70.70.60.40.70.9
Percentage of Assets country:IL0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

country:JP


Noncurrent
Period End2021-06-302021-03-312020-12-312020-09-302019-12-312018-12-31
Value0.9461.0421.231.2370.9990.632
Percentage of NoncurrentAssets4.04.45.46.45.94.1
Percentage of Assets0.10.10.10.30.20.2
Percentage of Assets country:JP0.00.00.00.00.00.0

country:US


Noncurrent
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value12121110109.5628.8968.178.1527.9738.2899.0329.7319.951010121211115.9597.3586.66.0693.468
Percentage of NoncurrentAssets53.052.052.553.254.352.452.249.351.450.853.956.957.255.557.459.864.763.664.365.840.651.552.557.160.3
Percentage of Assets1.21.21.12.41.91.91.91.82.02.22.42.93.13.33.94.24.74.64.24.12.42.62.13.52.9
Percentage of Assets country:US0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

nvcr:OthersCountries


Noncurrent
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-31
Value1.1530.7211.2330.9442.1832.1341.5811.5281.5171.3891.2742.0690.8190.6820.50.4260.4510.4690.3780.4330.4570.3970.4010.013
Percentage of NoncurrentAssets4.83.05.44.911.611.79.39.29.68.98.313.04.83.82.82.32.42.42.02.43.12.83.20.2
Percentage of Assets0.10.10.10.20.40.40.30.30.40.40.40.70.30.20.20.20.20.20.10.10.20.10.10.0
Percentage of Assets nvcr:OthersCountries0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Assets Noncurrent

us-gaap:AssetsNoncurrent

us-gaap:AssetsNoncurrent


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value5152524741403936363418181920202020212019151513146.046
Percentage of AssetsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.74.95.011.07.88.08.28.38.99.35.45.96.46.87.67.88.08.07.26.86.35.54.48.65.1

Property Plant And Equipment Gross

us-gaap:PropertyPlantAndEquipmentGross

us-gaap:PropertyPlantAndEquipmentGross


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value2923191716106.083
Percentage of PropertyPlantAndEquipmentGross100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.85.05.96.85.73.45.2

us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType

nvcr:ComputersAndLaboratoryEquipment


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value18151210106.7343.745
Percentage of PropertyPlantAndEquipmentGross63.164.461.360.362.864.261.6
Percentage of Assets1.83.23.64.13.62.23.2
Percentage of Assets nvcr:ComputersAndLaboratoryEquipment0.00.00.00.00.00.00.0

us-gaap:Equipment


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value1.6281.2371.2281.2221.1790.857
Percentage of PropertyPlantAndEquipmentGross5.55.26.26.87.38.2
Percentage of Assets0.20.30.40.50.40.3
Percentage of Assets us-gaap:Equipment0.00.00.00.00.00.0

us-gaap:FurnitureAndFixtures


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value2.8712.4862.3082.3031.9311.2450.995
Percentage of PropertyPlantAndEquipmentGross9.610.411.612.812.011.916.4
Percentage of Assets0.30.50.70.90.70.40.8
Percentage of Assets us-gaap:FurnitureAndFixtures0.00.00.00.00.00.00.0

us-gaap:LeaseholdImprovements


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value6.5014.8184.1923.6142.8851.6531.343
Percentage of PropertyPlantAndEquipmentGross21.820.121.020.117.915.822.1
Percentage of Assets0.61.01.21.41.00.51.1
Percentage of Assets us-gaap:LeaseholdImprovements0.00.00.00.00.00.00.0

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment


Accumulated
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value1814118.9416.3043.9372.351
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.83.13.43.42.21.32.0

Property Plant And Equipment Net

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:PropertyPlantAndEquipmentNet


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value11111110109.7789.3428.4258.3998.4218.4428.5648.8918.9029.0319.3619.621109.8129.8868.8137.096.5526.1063.732
Percentage of PropertyPlantAndEquipmentNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.11.11.12.42.01.91.91.92.12.32.52.72.92.93.43.63.73.83.53.43.52.52.13.53.2

Operating Lease Right Of Use Asset

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OperatingLeaseRightOfUseAsset


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value161719171717171414130.0
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets1.51.71.84.03.33.43.73.33.63.80.0

Other Assets Noncurrent

us-gaap:OtherAssetsNoncurrent

us-gaap:OtherAssetsNoncurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value101010114.864.8244.9045.7175.6824.9752.9452.7092.8772.6021.9861.9781.7661.7561.51.6461.0760.9920.7721.7050.227
Percentage of OtherAssetsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.01.01.02.60.91.01.01.31.41.30.90.90.90.90.70.80.70.70.50.60.40.40.31.00.2

Liabilities Current

us-gaap:LiabilitiesCurrent

us-gaap:LiabilitiesCurrent


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value11611011395858486807370644845445040353136293429282517
Percentage of LiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets10.610.310.822.116.116.818.018.118.119.219.015.214.614.718.915.613.712.113.110.213.810.59.314.915.0

Operating Lease Liability Current

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OperatingLeaseLiabilityCurrent


Operating
Period End2020-12-31
Value6483000.0
Percentage of OperatingLeaseLiabilityCurrent100.0
Percentage of Assets0.6

Other Accrued Liabilities Current

us-gaap:OtherAccruedLiabilitiesCurrent

us-gaap:OtherAccruedLiabilitiesCurrent


Other
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value6544000.04699000.032000.0144000.076000.0764000.097000.0
Percentage of OtherAccruedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.61.00.00.10.00.20.1

Liabilities Noncurrent

us-gaap:LiabilitiesNoncurrent

us-gaap:LiabilitiesNoncurrent


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value58358546128175176175173173172162152152152101104104103102103292927262.332
Percentage of LiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets53.254.843.96.733.335.136.639.042.846.748.048.349.250.338.339.940.639.236.535.411.710.59.115.32.0

Long Term Debt

us-gaap:LongTermDebt

us-gaap:LongTermDebt


Long
Period End2020-12-312019-12-31
Value429149
Percentage of LongTermDebt100.0100.0
Percentage of Assets40.931.2

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

nvcr:A0ConvertibleSeniorNotesDue2025, us-gaap:ConvertibleDebt


Long
Period End2021-06-302021-03-312020-12-31
Value560559429
Percentage of LongTermDebt0.00.0100.0
Percentage of Assets51.152.440.9
Percentage of Assets nvcr:A0ConvertibleSeniorNotesDue2025 us-gaap:ConvertibleDebt0.00.00.0

Long Term Debt Noncurrent

us-gaap:LongTermDebtNoncurrent

us-gaap:LongTermDebtNoncurrent


Long
Period End2021-06-302021-03-312020-12-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value560559429149149149149149149149149149149979796969695232323240.0
Percentage of LongTermDebtNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets51.152.440.928.329.731.233.736.840.343.947.348.149.236.737.037.636.534.133.09.38.37.514.10.0

Long Term Debt And Capital Lease Obligations

us-gaap:LongTermDebtAndCapitalLeaseObligations

us-gaap:LongTermDebtAndCapitalLeaseObligations


Long
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value40000.066000.094000.0128000.0193000.0254000.0321000.0
Percentage of LongTermDebtAndCapitalLeaseObligations100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.10.10.3

Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent


Pension
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value221512108.2426.223
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0
Percentage of Assets2.23.33.63.92.92.0

Other Liabilities Noncurrent

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:OtherLiabilitiesNoncurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value173000.0177000.0337000.0168000.0173000.0267000.0222000.0295000.0306000.0363000.01094000.0911000.0880000.0920000.01737000.05070000.04882000.04565000.04033000.04036000.03371000.03148000.02735000.01840000.02086000.0
Percentage of OtherLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.10.00.10.10.10.30.30.30.30.71.91.91.71.41.41.31.10.91.11.8

Operating Lease Liability Noncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value111214131313141111110.0
Percentage of OperatingLeaseLiabilityNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets1.11.21.43.02.62.62.92.62.93.00.0

Lessee Operating Lease Liability Payments Due Year Two

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo


Lessee
Period End2020-12-31
Value5760000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearTwo100.0
Percentage of Assets0.5

Lessee Operating Lease Liability Payments Due Year Three

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree


Lessee
Period End2020-12-31
Value3450000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearThree100.0
Percentage of Assets0.3

Lessee Operating Lease Liability Payments Due Year Four

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour


Lessee
Period End2020-12-31
Value2525000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFour100.0
Percentage of Assets0.2

Lessee Operating Lease Liability Payments Due Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive


Lessee
Period End2020-12-31
Value1456000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFive100.0
Percentage of Assets0.1

Lessee Operating Lease Liability Payments Due After Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive


Lessee
Period End2020-12-31
Value3990000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive100.0
Percentage of Assets0.4

Operating Lease Liability

us-gaap:OperatingLeaseLiability

us-gaap:OperatingLeaseLiability


Operating
Period End2020-12-312019-12-312019-09-302019-06-30
Value20181515
Percentage of OperatingLeaseLiability100.0100.0100.0100.0
Percentage of Assets2.03.93.53.8

Lessee Operating Lease Liability Payments Due

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue


Lessee
Period End2020-12-31
Value24
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue100.0
Percentage of Assets2.3

Lessee Operating Lease Liability Undiscounted Excess Amount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount


Lessee
Period End2020-12-31
Value3261000.0
Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount100.0
Percentage of Assets0.3

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-312013-12-312012-12-31
Value3973724763072672412171901581261121141121061131161171281421581862202501219717149
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets36.234.945.371.250.648.245.442.939.134.133.036.436.235.042.844.545.748.750.554.474.579.081.669.883.00.00.0

us-gaap:StockholdersEquity us-gaap:CumulativeEffectPeriodOfAdoption

srt:CumulativeEffectPeriodOfAdoptionAdjustment


Stockholders
Period End2020-12-312017-12-31
Value-128.9722.162
Percentage of StockholdersEquity-27.11.9
Percentage of Assets-12.30.8
Percentage of Assets srt:CumulativeEffectPeriodOfAdoptionAdjustment0.00.0

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

srt:CumulativeEffectPeriodOfAdoptionAdjustment, us-gaap:AdditionalPaidInCapital


Stockholders
Period End2020-12-31
Value-132.474
Percentage of StockholdersEquity-27.8
Percentage of Assets-12.6
Percentage of Assets srt:CumulativeEffectPeriodOfAdoptionAdjustment us-gaap:AdditionalPaidInCapital0.0

srt:CumulativeEffectPeriodOfAdoptionAdjustment, us-gaap:RetainedEarnings


Stockholders
Period End2020-12-312017-12-31
Value3.5022.162
Percentage of StockholdersEquity0.71.9
Percentage of Assets0.30.8
Percentage of Assets srt:CumulativeEffectPeriodOfAdoptionAdjustment us-gaap:RetainedEarnings0.00.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value-1.119-1.948-3.832-3.236-3.532-3.629-2.767-2.641-2.357-1.742-1.4-1.127-1.273-1.328-1.343-1.462-1.739-1.921-1.883-2.085-1.684-1.975-1.505
Percentage of StockholdersEquity-0.3-0.5-0.8-1.1-1.3-1.5-1.3-1.4-1.5-1.4-1.2-1.0-1.1-1.3-1.2-1.3-1.5-1.5-1.3-1.3-0.9-0.9-0.6
Percentage of Assets-0.1-0.2-0.4-0.8-0.7-0.7-0.6-0.6-0.6-0.5-0.4-0.4-0.4-0.4-0.5-0.6-0.7-0.7-0.7-0.7-0.7-0.7-0.5
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 End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-312013-12-312012-12-31
Value104410051111946916892871848818783757744729708697689679669664658652645640476374367167
Percentage of StockholdersEquity263.0270.3233.2308.2342.3368.9400.1445.5515.0620.2674.6647.4651.0667.4613.9590.9577.7519.4466.6415.9349.6293.0255.3393.0382.5214.0339.7
Percentage of Assets95.294.2105.7219.5173.3177.6181.8191.1201.5211.7222.9235.8235.5233.4262.8262.9264.2253.0235.4226.1260.4231.5208.4274.1317.60.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-312013-12-312012-12-31
Value-646.344-631.703-631.077-635.994-645.278-646.933-650.885-655.145-657.075-655.805-643.655-628.024-616.33-600.82-582.258-571.313-559.815-538.641-519.926-497.758-464.13-423.518-388.081-355.153-276.5-195.818-118.448
Percentage of StockholdersEquity-162.7-169.8-132.4-207.1-240.9-267.4-298.9-344.2-413.5-518.9-573.4-546.4-549.9-566.2-512.7-489.6-476.3-417.9-365.3-314.6-248.7-192.1-154.7-293.0-282.5-114.0-239.7
Percentage of Assets-58.9-59.2-60.0-147.5-122.0-128.8-135.8-147.6-161.8-177.1-189.4-199.0-198.9-198.0-219.5-217.8-217.8-203.5-184.3-171.0-185.3-151.8-126.3-204.4-234.60.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Additional Paid In Capital

us-gaap:AdditionalPaidInCapital

us-gaap:AdditionalPaidInCapital


Additional
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value104410051111946916892871848818783757744729708697689679669664658652645640476374
Percentage of AdditionalPaidInCapital100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets95.294.2105.7219.5173.3177.6181.8191.1201.5211.7222.9235.8235.5233.4262.8262.9264.2253.0235.4226.1260.4231.5208.4274.1317.6

Retained Earnings Accumulated Deficit

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:RetainedEarningsAccumulatedDeficit


Retained
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value-646340000.0-631700000.0-631080000.0-635990000.0-645280000.0-646930000.0-650880000.0-655140000.0-657080000.0-655800000.0-643660000.0-628020000.0-616330000.0-600820000.0-582260000.0-571310000.0-559820000.0-538640000.0-519930000.0-497760000.0-464130000.0-423520000.0-388080000.0-355150000.0-276500000.0
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-58.9-59.2-60.0-147.5-122.0-128.8-135.8-147.6-161.8-177.1-189.4-199.0-198.9-198.0-219.5-217.8-217.8-203.5-184.3-171.0-185.3-151.8-126.3-204.4-234.6

Accumulated Other Comprehensive Income Loss Net Of Tax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-31
Value-1119000.0-1948000.0-3832000.0-3236000.0-3532000.0-3629000.0-2767000.0-2641000.0-2357000.0-1742000.0-1400000.0-1127000.0-1273000.0-1328000.0-1343000.0-1462000.0-1739000.0-1921000.0-1883000.0-2085000.0-1684000.0-1975000.0-1505000.00
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets-0.1-0.2-0.4-0.8-0.7-0.7-0.6-0.6-0.6-0.5-0.4-0.4-0.4-0.4-0.5-0.6-0.7-0.7-0.7-0.7-0.7-0.7-0.50.0

Stock Issued During Period Value New Issues

us-gaap:StockIssuedDuringPeriodValueNewIssues

us-gaap:StockIssuedDuringPeriodValueNewIssues


Stock
Period End2021-06-302020-06-302019-06-302018-12-312018-09-302018-06-30
Value2.3711.6671.2080.8970.00.938
Percentage of StockIssuedDuringPeriodValueNewIssues100.0100.0100.0100.00.0100.0
Percentage of Assets0.00.00.00.00.00.0

us-gaap:StockIssuedDuringPeriodValueNewIssues us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stock
Period End2021-06-302020-06-302019-06-302018-12-312018-09-302018-06-30
Value2.3711.6671.2080.8970.00.938
Percentage of StockIssuedDuringPeriodValueNewIssues100.0100.0100.0100.00.0100.0
Percentage of Assets0.00.00.00.00.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.0

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

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue


Adjustments
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value271820181614139.6491010108.526.3568.6297.574.5614.7225.6265.6375.4564.488
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Adjustments
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value271820181614139.6491010108.526.3568.6297.574.5614.7225.6265.6375.4564.488
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value26175330121.9576.962149.066-4.315165.638-7.493-16.824-2.8982.547-5.875
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues19.613.237.223.311.01.97.016.210.5-5.924.18.7-12.2-32.3-5.45.1-15.3

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value-2.61854-613.638147-3.315-3.112-46.756-2.174-1.748-0.989-1.789-1.005-0.842-1.857-1.946-1.752-0.587
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-2.040.2-426.3111.0-2.9-3.1-47.1-2.4-2.0-1.3-2.6-1.6-1.4-3.6-3.6-3.5-1.5

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value117.955570-140.4935.3454.5038.5861520162.5653.90211511.3291.7132.067
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues8.35.9396.6-105.94.64.48.716.823.823.13.76.018.299.22.53.45.4

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
Value34791037143.289-30.752272811178.5332.86433
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues25.959.27.528.512.83.2-31.030.432.315.625.313.24.763.4

Amortization Of Financing Costs

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

us-gaap:AmortizationOfFinancingCosts

nvcr:A0ConvertibleSeniorNotesDue2025, us-gaap:ConvertibleDebt


Amortization
Period End2021-06-302021-03-31
Value976000.0709000.0
Percentage of AmortizationOfFinancingCosts100.0100.0

Increase Decrease In Accounts Receivable

us-gaap:IncreaseDecreaseInAccountsReceivable

us-gaap:IncreaseDecreaseInAccountsReceivable


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-3.026-4.624-3.2027.6786.1619199.9863.3132.6971.135-2.2553.5991.6726.5679.1122.0645.486
Percentage of IncreaseDecreaseInAccountsReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Inventories

us-gaap:IncreaseDecreaseInInventories

us-gaap:IncreaseDecreaseInInventories


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value-1.6631.2960.4890.0553.539-1.147-0.673-1.0671.3161.5830.9141.735-0.482-1.638-2.617-0.504-0.8030.41.5772.7574.7692.8522.4452.5561.4153.7320.75
Percentage of IncreaseDecreaseInInventories100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value26175330121.9576.962149.066-4.315165.638-7.493-16.824-2.8982.547-5.875
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues19.613.237.223.311.01.97.016.210.5-5.924.18.7-12.2-32.3-5.45.1-15.3

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value-14.641-4.1284.9179.2841.6553.9524.261.93-1.27-12.15-15.631-11.694-15.51-20.724-10.945-11.498-21.174-18.045-22.168-33.628-40.612-35.437-32.928-26.023-29.357-23.273-22.916-18.32
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-11.0-3.13.47.01.43.94.32.1-1.5-16.6-22.4-18.1-25.2-39.8-20.4-22.9-55.2-51.7-73.3-155.2-226.6-271.5-265.9-290.7-448.7-446.9-602.9-418.8

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value-14.641-4.1289.2841.6553.9521.93-1.27-12.15-15.631-11.694-15.51-20.724-10.945-11.498-21.174-18.045-22.168-33.628-40.612-35.437-32.928
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-11.0-3.17.01.43.92.1-1.5-16.6-22.4-18.1-25.2-39.8-20.4-22.9-55.2-51.7-73.3-155.2-226.6-271.5-265.9
Percentage of Revenues us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Share Based Compensation

us-gaap:ShareBasedCompensation

us-gaap:ShareBasedCompensation


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value2718202018161414139.6491010108.526.3568.6297.574.5615.425.6265.6375.4564.4882.9282.6321.8121.27
Percentage of ShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value-2.61854-613.638147-3.315-3.112-46.756-2.174-1.748-0.989-1.789-1.005-0.842-1.857-1.946-1.752-0.587
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-2.040.2-426.3111.0-2.9-3.1-47.1-2.4-2.0-1.3-2.6-1.6-1.4-3.6-3.6-3.5-1.5

Payments To Acquire Property Plant And Equipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value2.6183.9815.7592.7823.3153.1123.0552.7080.8920.860.7520.5730.8540.7370.5080.5440.3761.0310.6191.7152.3381.0021.0541.1961.8080.6090.406
Percentage of PaymentsToAcquirePropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value117.955570-140.4935.3454.5038.5861520162.5653.90211511.3291.7132.067
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues8.35.9396.6-105.94.64.48.716.823.823.13.76.018.299.22.53.45.4

Repayments Of Long Term Debt

us-gaap:RepaymentsOfLongTermDebt

us-gaap:RepaymentsOfLongTermDebt


Repayments
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
Value0.0070.0060.0061500.0070.0080.0080.0070.0080.008-0.0630.0220.0100
Percentage of RepaymentsOfLongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0

Debt Instrument Interest Rate Stated Percentage

us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:DebtInstrumentInterestRateStatedPercentage

nvcr:A0ConvertibleSeniorNotesDue2025, us-gaap:ConvertibleDebt


Debt
Period End2020-11-05
Value0
Percentage of DebtInstrumentInterestRateStatedPercentage0.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.0
Percentage of LongTermDebtAndCapitalLeaseObligations nvcr:A0ConvertibleSeniorNotesDue2025 us-gaap:ConvertibleDebt0.0

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

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value32.0931.6326.2125.6524.323.5820.419.7718.7216.2913.5613.3712.9912.0410.6410.469.889.539.769.789.779.358.27.463.98
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Assets Net

us-gaap:DeferredTaxAssetsNet

us-gaap:DeferredTaxAssetsNet


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value3141000.0383000.01712000.02095000.02109000.01299000.0449000.0
Percentage of DeferredTaxAssetsNet100.0100.0100.0100.0100.0100.0100.0

Unrecognized Tax Benefits

us-gaap:UnrecognizedTaxBenefits

us-gaap:UnrecognizedTaxBenefits


Unrecognized
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value297000.0116000.0103000.02827000.02400000.01565000.0308000.0549000.0
Percentage of UnrecognizedTaxBenefits100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Assets Valuation Allowance

us-gaap:DeferredTaxAssetsValuationAllowance

us-gaap:DeferredTaxAssetsValuationAllowance


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value36435711275703313
Percentage of DeferredTaxAssetsValuationAllowance100.0100.0100.0100.0100.0100.0100.0

nvcr:DebtInstrumentConvertiblePercentageOfConversionPrice us-gaap:DebtInstrument, us-gaap:LongtermDebtType

nvcr:DebtInstrumentConvertiblePercentageOfConversionPrice

nvcr:A0ConvertibleSeniorNotesDue2025, us-gaap:ConvertibleDebt


Debt
Period End2020-11-05
Value130.0
Percentage of DebtInstrumentConvertiblePercentageOfConversionPrice100.0

nvcr:DebtInstrumentIssuanceThresholdPercentageOfStockPriceTrigger us-gaap:DebtInstrument, us-gaap:LongtermDebtType

nvcr:DebtInstrumentIssuanceThresholdPercentageOfStockPriceTrigger

nvcr:A0ConvertibleSeniorNotesDue2025, us-gaap:ConvertibleDebt


Debt
Period End2020-11-05
Value10.0
Percentage of DebtInstrumentIssuanceThresholdPercentageOfStockPriceTrigger100.0

nvcr:DebtInstrumentRedemptionPriceAmount us-gaap:DebtInstrument, us-gaap:LongtermDebtType

nvcr:DebtInstrumentRedemptionPriceAmount

nvcr:A0ConvertibleSeniorNotesDue2025, us-gaap:ConvertibleDebt


Debt
Period End2021-01-31
Value1000000.0
Percentage of DebtInstrumentRedemptionPriceAmount100.0

nvcr:DebtInstrumentRedemptionPriceAmount us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType

nvcr:A0ConvertibleSeniorNotesDue2025, us-gaap:ConvertibleDebt, us-gaap:SubsequentEvent


Debt
Period End2021-01-31
Value1000000.0
Percentage of DebtInstrumentRedemptionPriceAmount100.0

nvcr:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedAndNotExpectedToVestFairValue nvcr:Granted, us-gaap:AwardType

nvcr:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedAndNotExpectedToVestFairValue

nvcr:AwardFour, nvcr:PerformanceBasedShareUnitsPSUs


Share
Period End2021-06-302021-03-31
Value0.010
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedAndNotExpectedToVestFairValue0.0100.0

nvcr:AwardOne, nvcr:PerformanceBasedShareUnitsPSUs


Share
Period End2021-06-302021-03-31
Value0.0130
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedAndNotExpectedToVestFairValue0.01202.0

nvcr:AwardThree, nvcr:PerformanceBasedShareUnitsPSUs


Share
Period End2021-06-302021-03-31
Value-1.53.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedAndNotExpectedToVestFairValue0.027.7

nvcr:AwardTwo, nvcr:PerformanceBasedShareUnitsPSUs


Share
Period End2021-06-302021-03-31
Value-7.515
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedAndNotExpectedToVestFairValue0.0138.5

nvcr:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedAndNotExpectedToVestFairValue us-gaap:AwardType

nvcr:PerformanceBasedShareUnitsPSUs


Share
Period End2021-06-302021-03-31
Value-8.999159
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedAndNotExpectedToVestFairValue0.01468.2

nvcr:ShareBasedCompensationArrangementByShareBasedPaymentAwardIncreaseInNumberOfSharesAvailableForIssuancePercentage us-gaap:PlanName

nvcr:ShareBasedCompensationArrangementByShareBasedPaymentAwardIncreaseInNumberOfSharesAvailableForIssuancePercentage

nvcr:TwoThousandFifteenPlan


Share
Period End2020-12-31
Value4.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardIncreaseInNumberOfSharesAvailableForIssuancePercentage100.0

nvcr:ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfIncreaseInSharesOutstanding us-gaap:SubsidiarySaleOfStock

nvcr:ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfIncreaseInSharesOutstanding

us-gaap:EmployeeStock


Share
Period End2020-12-31
Value1.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfIncreaseInSharesOutstanding100.0

nvcr:StockIssuedDuringPeriodValueExerciseOfOptionsAndVestedRSUs

nvcr:StockIssuedDuringPeriodValueExerciseOfOptionsAndVestedRSUs


Stock
Period End2020-09-302020-06-302020-03-312019-06-302019-03-31
Value9.5143.6854.5111916
Percentage of StockIssuedDuringPeriodValueExerciseOfOptionsAndVestedRSUs100.0100.0100.0100.0100.0

nvcr:StockIssuedDuringPeriodValueExerciseOfOptionsAndVestedRSUs us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stock
Period End2020-09-302020-06-302020-03-312019-06-302019-03-31
Value9.5143.6854.5111916
Percentage of StockIssuedDuringPeriodValueExerciseOfOptionsAndVestedRSUs100.0100.0100.0100.0100.0

nvcr:StockIssuedDuringPeriodValueStockOptionsExercisedAndRestrictedStockAwardForfeitures

nvcr:StockIssuedDuringPeriodValueStockOptionsExercisedAndRestrictedStockAwardForfeitures


Stock
Period End2021-06-302021-03-312020-03-31
Value8695000.07961000.04511000.0
Percentage of StockIssuedDuringPeriodValueStockOptionsExercisedAndRestrictedStockAwardForfeitures100.0100.0100.0

nvcr:StockIssuedDuringPeriodValueStockOptionsExercisedAndRestrictedStockAwardForfeitures us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stock
Period End2021-06-302021-03-312020-03-31
Value8695000.07961000.04511000.0
Percentage of StockIssuedDuringPeriodValueStockOptionsExercisedAndRestrictedStockAwardForfeitures100.0100.0100.0

us-gaap:AmortizationOfDebtDiscountPremium

us-gaap:AmortizationOfDebtDiscountPremium


Amortization
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value925000.0603000.03914000.0424000.0-538000.0-539000.0-464000.0-547000.0-587000.0-578000.0-480000.0-555000.0-370000.02427000.026000.017000.0103000.0106000.0130000.081000.0-39000.0-17000.098000.088000.088000.055000.0-2000.0
Percentage of AmortizationOfDebtDiscountPremium100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AssetImpairmentCharges

us-gaap:AssetImpairmentCharges


Asset
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value178000.0176000.0166000.0124000.0133000.06000.0159000.078000.086000.075000.087000.0178000.093000.049000.035000.072000.059000.075000.06000.010000.06425000.05000.04000.0011000.031000.04000.0
Percentage of AssetImpairmentCharges100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0

us-gaap:DebtInstrumentConvertibleConversionRatio1 us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:DebtInstrumentConvertibleConversionRatio1

nvcr:A0ConvertibleSeniorNotesDue2025, us-gaap:ConvertibleDebt


Debt
Period End2020-11-05
Value0.0059439
Percentage of DebtInstrumentConvertibleConversionRatio1100.0

us-gaap:DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger

nvcr:A0ConvertibleSeniorNotesDue2025, us-gaap:ConvertibleDebt


Debt
Period End2020-11-05
Value98.0
Percentage of DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger100.0

us-gaap:DebtInstrumentRedemptionPricePercentage us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:DebtInstrumentRedemptionPricePercentage

nvcr:A0ConvertibleSeniorNotesDue2025, us-gaap:ConvertibleDebt


Debt
Period End2020-11-05
Value100.0
Percentage of DebtInstrumentRedemptionPricePercentage100.0

us-gaap:DepreciationAndAmortization

us-gaap:DepreciationAndAmortization


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value2480000.02370000.02473000.02188000.02601000.01888000.02467000.01932000.02132000.01929000.02205000.02311000.02287000.02203000.02153000.02053000.01811000.01660000.01589000.01553000.01407000.01103000.01148000.0893000.0588000.0524000.0
Percentage of DepreciationAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


Effect
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value-3000.0-102000.095000.0102000.0109000.0-59000.0456000.0-216000.047000.0-261000.08000.0-2000.011000.010000.00-2000.0-1000.0
Percentage of EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0

us-gaap:ForeignCurrencyTransactionGainLossBeforeTax

us-gaap:ForeignCurrencyTransactionGainLossBeforeTax


Foreign
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-06-302019-03-31
Value-372000.0-2157000.0150000.079000.0463000.07000.000
Percentage of ForeignCurrencyTransactionGainLossBeforeTax100.0100.0100.0100.0100.0100.00.00.0

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value5.122-2.626179.9080.405-2.3395.9816.4332.2232.246162.839
Percentage of IncreaseDecreaseInAccountsPayableAndAccruedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherNoncurrentAssets

us-gaap:IncreaseDecreaseInOtherNoncurrentAssets


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value-1584000.0-1432000.0-1428000.05173000.0-1143000.0-1235000.0-2295000.0-1069000.0632000.01899000.0206000.0-155000.0278000.0620000.022000.0238000.038000.0256000.0-112000.0526000.0111000.0167000.0460000.0-250000.0161000.010000.064000.0
Percentage of IncreaseDecreaseInOtherNoncurrentAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherNoncurrentLiabilities

us-gaap:IncreaseDecreaseInOtherNoncurrentLiabilities


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value-2418000.0-4394000.0251000.01905000.0-1266000.0-225000.0-2714000.0-1407000.0-579000.0-1247000.010134000.052000.0-16000.0-800000.0-3308000.0208000.0321000.0550000.056000.0263000.0225000.0413000.0904000.0430000.0-799000.046000.0705000.0
Percentage of IncreaseDecreaseInOtherNoncurrentLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage us-gaap:Range, us-gaap:CreditFacility, us-gaap:LongtermDebtType

us-gaap:LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage

srt:Maximum, us-gaap:RevolvingCreditFacility, us-gaap:LineOfCredit


Line
Period End2020-11-06
Value0.45
Percentage of LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage100.0

srt:Minimum, us-gaap:RevolvingCreditFacility, us-gaap:LineOfCredit


Line
Period End2020-11-06
Value0.35
Percentage of LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage77.8

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value-416000.0-2152000.0485000.0-153000.0-13000.0662000.0252000.068000.0662000.081000.0281000.0-147000.0-44000.0-5000.0-119000.0-279000.0-183000.049000.0-256000.0409000.0-235000.0470000.0
Percentage of OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossTax

us-gaap:OtherComprehensiveIncomeLossTax


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value00000-11000.0-69000.0-11000.0-11000.0-3000.0-5000.0125000.0-28000.0-28000.0-1000.0
Percentage of OtherComprehensiveIncomeLossTax0.00.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsOfDebtExtinguishmentCosts us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:PaymentsOfDebtExtinguishmentCosts

nvcr:A2018LoanAgreementAndSecurityAgreement, us-gaap:MediumTermNotes


Payments
Period End2020-08-18
Value3000000.0
Percentage of PaymentsOfDebtExtinguishmentCosts100.0

nvcr:A2018LoanAndSecurityAgreementWithBioPharmaCreditPLC, us-gaap:MediumTermNotes


Payments
Period End2020-08-18
Value3000000.0
Percentage of PaymentsOfDebtExtinguishmentCosts100.0

us-gaap:PaymentsToAcquireHeldToMaturitySecurities

us-gaap:PaymentsToAcquireHeldToMaturitySecurities


Payments
Period End2021-06-302021-03-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value0.05490.00.01481041041041044459440.00.059440.01190.01191500.0362129
Percentage of PaymentsToAcquireHeldToMaturitySecurities0.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.00.0100.00.0100.0100.00.0100.0100.0100.0

us-gaap:ProceedsFromConvertibleDebt us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:ProceedsFromConvertibleDebt

nvcr:A0ConvertibleSeniorNotesDue2025, us-gaap:ConvertibleDebt


Proceeds
Period End2020-11-05
Value558
Percentage of ProceedsFromConvertibleDebt100.0

us-gaap:ProceedsFromIssuanceOfCommonStock

us-gaap:ProceedsFromIssuanceOfCommonStock


Proceeds
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302015-12-312015-09-302015-06-30
Value2.3711.7030.01.6670.01.2590.01.2080.00.8970.00.9380.7590.00.7811570.094
Percentage of ProceedsFromIssuanceOfCommonStock100.0100.00.0100.00.0100.00.0100.00.0100.00.0100.0100.00.0100.0100.00.0100.0

us-gaap:ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities

us-gaap:ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value0.06080.01500.00.01051051051051054560450.00.060600.01200.015027302.04524
Percentage of ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities0.0100.00.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.00.0100.00.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromStockOptionsExercised

us-gaap:ProceedsFromStockOptionsExercised


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value8.6957.961109.5143.6854.5117.3351519161.6893.924102.581
Percentage of ProceedsFromStockOptionsExercised100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RepaymentsOfSecuredDebt us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:RepaymentsOfSecuredDebt

nvcr:A2018LoanAgreementAndSecurityAgreement, us-gaap:MediumTermNotes


Repayments
Period End2020-08-18
Value150
Percentage of RepaymentsOfSecuredDebt100.0

nvcr:A2018LoanAndSecurityAgreementWithBioPharmaCreditPLC, us-gaap:MediumTermNotes


Repayments
Period End2020-08-18
Value150
Percentage of RepaymentsOfSecuredDebt100.0

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability


Right
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312019-01-012018-12-312018-09-30
Value0.6650.2842.7680.6751.3910.7834.6081.0621.53915150.00.0
Percentage of RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue


Share
Period End2020-09-302020-06-302020-03-31
Value3.44-7.7952.84
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue us-gaap:AwardType

nvcr:RestrictedStockUnitsRSUsAndPerformanceBasedShareUnitsPSUs


Share
Period End2021-06-302021-03-31
Value8.5575.05
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue0.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue


Share
Period End2020-09-302020-06-302020-03-31
Value1.43-0.4454.07
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue us-gaap:AwardType

nvcr:RestrictedStockUnitsRSUsAndPerformanceBasedShareUnitsPSUs


Share
Period End2021-06-302021-03-31
Value1.51139.43
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue0.00.0

us-gaap:RestrictedStockUnitsRSU


Share
Period End2020-09-012020-03-03
Value84.6869.37
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue0.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue us-gaap:AwardType, us-gaap:Vesting

nvcr:PerformanceBasedShareUnitsPSUs, us-gaap:ShareBasedCompensationAwardTrancheOne


Share
Period End2020-09-012020-03-03
Value84.6869.37
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue0.00.0

nvcr:PerformanceBasedShareUnitsPSUs, us-gaap:ShareBasedCompensationAwardTrancheTwo


Share
Period End2020-09-012020-03-03
Value84.6869.37
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue0.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue


Share
Period End2020-09-302020-06-302020-03-31
Value1.46-2.2522.1
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue us-gaap:AwardType

nvcr:RestrictedStockUnitsRSUsAndPerformanceBasedShareUnitsPSUs


Share
Period End2021-06-302021-03-31
Value0.848.38
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue0.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate

us-gaap:EmployeeStockOption


Share
Period End2021-03-312020-03-312019-03-312018-03-312017-03-31
Value60.054.00.550.55040.5915
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate us-gaap:SubsidiarySaleOfStock

us-gaap:EmployeeStock


Share
Period End2021-06-302021-03-312020-06-302020-03-312019-06-302019-03-312018-06-302018-03-312017-06-302017-03-312016-12-31
Value-1.055.0047.000.620.00420.525800.820
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate0.091.70.087.00.0112.70.095.50.0138.60.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum

us-gaap:EmployeeStockOption


Share
Period End2020-12-312020-09-302019-12-312019-09-302018-12-312018-09-302017-12-312017-09-302016-12-312016-09-302016-06-302016-03-312015-12-31
Value055.4400.040000.0030.000500.01460.60190
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum0.0100.00.0100.00.00.00.0100.0100.00.0100.0100.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum

us-gaap:EmployeeStockOption


Share
Period End2020-12-312020-09-302019-12-312019-09-302018-12-312018-09-302017-12-312017-09-302016-12-312016-09-302016-06-302016-03-312015-12-31
Value053.46000000-0.0072-0.006800.598-0.035
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum0.0100.00.00.00.00.00.00.0100.0100.00.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate us-gaap:SubsidiarySaleOfStock

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate

us-gaap:EmployeeStock


Share
Period End2021-06-302021-03-312020-06-302020-03-312019-06-302019-03-312018-06-302018-03-312017-06-302017-03-312016-12-31
Value00.0901.5700.025100.016100.00620
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate0.0100.00.0100.00.0100.00.0100.00.0100.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum

us-gaap:EmployeeStockOption


Share
Period End2021-06-302021-03-312020-12-312020-09-302019-12-312019-09-302018-12-312018-09-302017-12-312017-09-302016-12-312016-09-302016-06-302016-03-312015-12-31
Value0.140.8800.8514000.0010000000.01880.0015
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum100.0100.00.0100.00.00.0100.00.00.00.00.00.00.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum

us-gaap:EmployeeStockOption


Share
Period End2021-06-302021-03-312020-12-312020-09-302019-12-312019-09-302018-12-312018-09-302017-12-312017-09-302016-12-312016-09-302016-06-302016-03-312015-12-31
Value00.8500.2961-0.0017-0.0031000-0.000200-0.00290.0152-0.0001
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum0.0100.00.0100.0100.0100.00.00.00.0100.00.00.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value1.3919.361.560.1-1.4615.52
Percentage of ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value-4.7262.863.720.86-22.9941.39
Percentage of ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value1.62153.091.311.57-0.3869.37
Percentage of ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice100.0100.0100.0100.0100.0100.0

us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment

us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment


Weighted
Period End2020-09-302020-06-302020-03-31
Value7409500.06928900.08223100.0
Percentage of WeightedAverageNumberDilutedSharesOutstandingAdjustment100.0100.0100.0

nvcr:AdvancesAndReceivablesFromSuppliers

nvcr:AdvancesAndReceivablesFromSuppliers


Advances
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value3768000.05097000.04565000.02924000.05829000.07323000.04262000.0
Percentage of AdvancesAndReceivablesFromSuppliers100.0100.0100.0100.0100.0100.0100.0

nvcr:DebtInstrumentConvertibleCarryingAmountOfEquityComponentGross us-gaap:DebtInstrument, us-gaap:LongtermDebtType

nvcr:DebtInstrumentConvertibleCarryingAmountOfEquityComponentGross

nvcr:A0ConvertibleSeniorNotesDue2025, us-gaap:ConvertibleDebt


Debt
Period End2020-12-31
Value136
Percentage of DebtInstrumentConvertibleCarryingAmountOfEquityComponentGross100.0

nvcr:DebtInstrumentCovenantComplianceHoldersMinimumFaceAmount us-gaap:DebtInstrument, us-gaap:LongtermDebtType

nvcr:DebtInstrumentCovenantComplianceHoldersMinimumFaceAmount

nvcr:A0ConvertibleSeniorNotesDue2025, us-gaap:ConvertibleDebt


Debt
Period End2020-11-05
Value3000000.0
Percentage of DebtInstrumentCovenantComplianceHoldersMinimumFaceAmount100.0

nvcr:DebtIssuanceCostsEquityComponent us-gaap:DebtInstrument, us-gaap:LongtermDebtType

nvcr:DebtIssuanceCostsEquityComponent

nvcr:A0ConvertibleSeniorNotesDue2025, us-gaap:ConvertibleDebt


Debt
Period End2020-12-31
Value3928000.0
Percentage of DebtIssuanceCostsEquityComponent100.0

nvcr:DeferredTaxAssetsRevenueRecognition

nvcr:DeferredTaxAssetsRevenueRecognition


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value128124996046219.042
Percentage of DeferredTaxAssetsRevenueRecognition100.0100.0100.0100.0100.0100.0100.0

nvcr:EmployeeRelatedLiabilitiesNonCurrent

nvcr:EmployeeRelatedLiabilitiesNonCurrent


Employee
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-31
Value2553000.02963000.05171000.04571000.04626000.04519000.03754000.03701000.03610000.02823000.02683000.02347000.02473000.02522000.02453000.02489000.02679000.02756000.02590000.03132000.02592000.02823000.02057000.0246000.0
Percentage of EmployeeRelatedLiabilitiesNonCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

nvcr:FieldEquipmentAccumulatedDepreciation

nvcr:FieldEquipmentAccumulatedDepreciation


Field
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value1613105.9842.3593.1971.925
Percentage of FieldEquipmentAccumulatedDepreciation100.0100.0100.0100.0100.0100.0100.0

nvcr:FieldEquipmentGrossNoncurrent

nvcr:FieldEquipmentGrossNoncurrent


Field
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value27211715119.2263.942
Percentage of FieldEquipmentGrossNoncurrent100.0100.0100.0100.0100.0100.0100.0

nvcr:FieldEquipmentNetNoncurrent

nvcr:FieldEquipmentNetNoncurrent


Field
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value1212119.1328.3398.4677.6848.1397.4667.2666.9247.38.1089.029.0368.9489.0619.2788.8088.0425.857.2116.0294.5162.017
Percentage of FieldEquipmentNetNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

nvcr:GovernmentRelatedLiabilitiesCurrent

nvcr:GovernmentRelatedLiabilitiesCurrent


Government
Period End2020-12-312019-12-31
Value5.3412
Percentage of GovernmentRelatedLiabilitiesCurrent100.0100.0

nvcr:LineOfCreditFacilityAccordionFeatureIncreaseLimit us-gaap:CreditFacility, us-gaap:LongtermDebtType

nvcr:LineOfCreditFacilityAccordionFeatureIncreaseLimit

us-gaap:BridgeLoan, us-gaap:LineOfCredit


Line
Period End2020-11-06
Value100
Percentage of LineOfCreditFacilityAccordionFeatureIncreaseLimit100.0

nvcr:OperatingLeaseCommitments

nvcr:OperatingLeaseCommitments


Operating
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value1687000.01390000.01299000.01202000.0955000.0962000.0532000.0472000.0283000.0283000.0281000.0
Percentage of OperatingLeaseCommitments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

nvcr:OtherAccountsPayableLeaseLiabilitesAndAccruedExpensesCurrent

nvcr:OtherAccountsPayableLeaseLiabilitesAndAccruedExpensesCurrent


Other
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value5346434948434137
Percentage of OtherAccountsPayableLeaseLiabilitesAndAccruedExpensesCurrent100.0100.0100.0100.0100.0100.0100.0100.0

nvcr:OtherAccountsPayableLeaseLiabilitiesAndAccruedExpensesCurrent

nvcr:OtherAccountsPayableLeaseLiabilitiesAndAccruedExpensesCurrent


Other
Period End2021-06-302021-03-312020-12-31
Value595759
Percentage of OtherAccountsPayableLeaseLiabilitiesAndAccruedExpensesCurrent100.0100.0100.0

nvcr:ReceivablesAndPrepaidExpenses

nvcr:ReceivablesAndPrepaidExpenses


Receivables
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value17182137384229171513149.895119.9398.1055.55911141011121110105.711
Percentage of ReceivablesAndPrepaidExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

nvcr:RegulatoryAndCommercialMilestonePayable us-gaap:TypeOfArrangement

nvcr:RegulatoryAndCommercialMilestonePayable

nvcr:LicenseAndCollaborationAgreement


Regulatory
Period End2020-09-302020-06-302020-03-31
Value2000.02000.02000000.0
Percentage of RegulatoryAndCommercialMilestonePayable100.0100.0100.0

nvcr:UnrecognizedTaxBenefitsClassifiedAsLongTermLiabilities

nvcr:UnrecognizedTaxBenefitsClassifiedAsLongTermLiabilities


Unrecognized
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value297000.0116000.0103000.0244000.02400000.0
Percentage of UnrecognizedTaxBenefitsClassifiedAsLongTermLiabilities100.0100.0100.0100.0100.0

us-gaap:AccountsPayableTradeCurrent

us-gaap:AccountsPayableTradeCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value56525342384036313029262020191714131418152218161510
Percentage of AccountsPayableTradeCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CapitalizedComputerSoftwareNet

us-gaap:CapitalizedComputerSoftwareNet


Capitalized
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value9219000.07199000.06256000.05576000.04742000.0
Percentage of CapitalizedComputerSoftwareNet100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerLiabilityNoncurrent

us-gaap:ContractWithCustomerLiabilityNoncurrent


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value8.3529.57712108.0228.7727.8078.3419.929
Percentage of ContractWithCustomerLiabilityNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractualObligation

us-gaap:ContractualObligation


Contractual
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value1750000.01649000.01687000.01652000.01625000.01387000.01390000.01491000.01307000.01294000.01299000.01307000.01305000.01208000.01202000.0
Percentage of ContractualObligation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtInstrumentConvertibleCarryingAmountOfTheEquityComponent us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:DebtInstrumentConvertibleCarryingAmountOfTheEquityComponent

nvcr:A0ConvertibleSeniorNotesDue2025, us-gaap:ConvertibleDebt


Debt
Period End2020-12-31
Value132
Percentage of DebtInstrumentConvertibleCarryingAmountOfTheEquityComponent100.0

us-gaap:DebtInstrumentConvertibleConversionPrice1 us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:DebtInstrumentConvertibleConversionPrice1

nvcr:A0ConvertibleSeniorNotesDue2025, us-gaap:ConvertibleDebt


Debt
Period End2020-11-05
Value168.24
Percentage of DebtInstrumentConvertibleConversionPrice1100.0

us-gaap:DebtInstrumentFaceAmount us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:DebtInstrumentFaceAmount

nvcr:A0ConvertibleSeniorNotesDue2025, us-gaap:ConvertibleDebt


Debt
Period End2020-11-05
Value575
Percentage of DebtInstrumentFaceAmount100.0

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

us-gaap:DebtInstrumentUnamortizedDiscount

nvcr:A0ConvertibleSeniorNotesDue2025, us-gaap:ConvertibleDebt


Debt
Period End2020-12-31
Value132
Percentage of DebtInstrumentUnamortizedDiscount100.0

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

us-gaap:DeferredFinanceCostsNet

nvcr:A0ConvertibleSeniorNotesDue2025, us-gaap:ConvertibleDebt


Deferred
Period End2021-06-302021-03-312020-12-31
Value141512
Percentage of DeferredFinanceCostsNet100.0100.0100.0

nvcr:A2018LoanAgreementAndSecurityAgreement, us-gaap:MediumTermNotes


Deferred
Period End2020-08-18
Value0.478
Percentage of DeferredFinanceCostsNet0.0

nvcr:A2018LoanAndSecurityAgreementWithBioPharmaCreditPLC, us-gaap:MediumTermNotes


Deferred
Period End2020-08-18
Value0.478
Percentage of DeferredFinanceCostsNet0.0

us-gaap:DeferredIncomeTaxLiabilities

us-gaap:DeferredIncomeTaxLiabilities


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value3141000.0383000.01427000.01486000.01789000.01008000.0442000.0
Percentage of DeferredIncomeTaxLiabilities100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredRevenue

us-gaap:DeferredRevenue


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value17118.844.9592.2670.052
Percentage of DeferredRevenue100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetInterestCarryforward

us-gaap:DeferredTaxAssetInterestCarryforward


Deferred
Period End2020-12-312019-12-31
Value6975000.04028000.0
Percentage of DeferredTaxAssetInterestCarryforward100.0100.0

us-gaap:DeferredTaxAssetsDeferredIncome

us-gaap:DeferredTaxAssetsDeferredIncome


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value3246000.02450000.01643000.01340000.0879000.0
Percentage of DeferredTaxAssetsDeferredIncome100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsGoodwillAndIntangibleAssets

us-gaap:DeferredTaxAssetsGoodwillAndIntangibleAssets


Deferred
Period End2020-12-312019-12-312018-12-31
Value1571760.0
Percentage of DeferredTaxAssetsGoodwillAndIntangibleAssets100.0100.00.0

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsGross


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value36735711477723414
Percentage of DeferredTaxAssetsGross100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsOperatingLossCarryforwards

us-gaap:DeferredTaxAssetsOperatingLossCarryforwards


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value40350.8430.9720.5770.3470.85
Percentage of DeferredTaxAssetsOperatingLossCarryforwards100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsDomestic

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsDomestic


Deferred
Period End2020-12-31
Value80
Percentage of DeferredTaxAssetsOperatingLossCarryforwardsDomestic100.0

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsForeign

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsForeign


Deferred
Period End2020-12-31
Value131
Percentage of DeferredTaxAssetsOperatingLossCarryforwardsForeign100.0

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsNotSubjectToExpiration us-gaap:IncomeTaxAuthority

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsNotSubjectToExpiration

us-gaap:StateAndLocalJurisdiction


Deferred
Period End2020-12-312019-12-31
Value2121
Percentage of DeferredTaxAssetsOperatingLossCarryforwardsNotSubjectToExpiration100.0100.0

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal


Deferred
Period End2020-12-31
Value120
Percentage of DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal100.0

us-gaap:DeferredTaxAssetsOther

us-gaap:DeferredTaxAssetsOther


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value3828000.02359000.01384000.01147000.01481000.0952000.0482000.0
Percentage of DeferredTaxAssetsOther100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxCreditCarryforwardsResearch

us-gaap:DeferredTaxAssetsTaxCreditCarryforwardsResearch


Deferred
Period End2020-12-312019-12-31
Value9186000.0800000.0
Percentage of DeferredTaxAssetsTaxCreditCarryforwardsResearch100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value1712107.5443.51
Percentage of DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesOther

us-gaap:DeferredTaxLiabilitiesOther


Deferred
Period End2020-12-312019-12-312018-12-31
Value956000.03000.00
Percentage of DeferredTaxLiabilitiesOther100.0100.00.0

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value2185000.0380000.01427000.01486000.01789000.01008000.0442000.0
Percentage of DeferredTaxLiabilitiesPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanAmountsRecognizedInBalanceSheet

us-gaap:DefinedBenefitPlanAmountsRecognizedInBalanceSheet


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value-4671000.0-3329000.0-2313000.0-2074000.0-2263000.0-1790000.0
Percentage of DefinedBenefitPlanAmountsRecognizedInBalanceSheet100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent

us-gaap:DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value18129.9368.2435.9794.433
Percentage of DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanBenefitObligation

us-gaap:DefinedBenefitPlanBenefitObligation


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value221512108.2416.223
Percentage of DefinedBenefitPlanBenefitObligation100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value3445000.02109000.02859000.01053000.0928000.0264000.0
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value1804000.0270000.0206000.0166000.0148000.08000.0
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value405000.0571000.0200000.0163000.01069000.032000.0
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value788000.0260000.0195000.01124000.0155000.025000.0
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value400000.0255000.01158000.0172000.0152000.019000.0
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value394000.01434000.0205000.0168000.0150000.013000.0
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanFairValueOfPlanAssets

us-gaap:DefinedBenefitPlanFairValueOfPlanAssets


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value18129.9368.2435.9784.433
Percentage of DefinedBenefitPlanFairValueOfPlanAssets100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanFundedStatusOfPlan

us-gaap:DefinedBenefitPlanFundedStatusOfPlan


Defined
Period End2020-12-312019-12-312018-12-312017-12-31
Value-4671000.0-3329000.0-2313000.0-2074000.0
Percentage of DefinedBenefitPlanFundedStatusOfPlan100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanPlanAssetsTargetAllocationPercentage

us-gaap:DefinedBenefitPlanPlanAssetsTargetAllocationPercentage


Defined
Period End2020-09-302019-09-302018-12-31
Value100.01.01.0
Percentage of DefinedBenefitPlanPlanAssetsTargetAllocationPercentage100.0100.0100.0

us-gaap:DefinedBenefitPlanPlanAssetsTargetAllocationPercentage us-gaap:DefinedBenefitPlanByPlanAssetCategories

nvcr:OtherPlanAssetAllocation


Defined
Period End2020-09-302019-09-302018-12-31
Value6.00.050.22
Percentage of DefinedBenefitPlanPlanAssetsTargetAllocationPercentage6.05.022.0

us-gaap:DefinedBenefitPlanDebtSecurity


Defined
Period End2020-09-302019-09-302018-12-31
Value34.00.360.28
Percentage of DefinedBenefitPlanPlanAssetsTargetAllocationPercentage34.036.028.0

us-gaap:DefinedBenefitPlanEquitySecurities


Defined
Period End2020-09-302019-09-302018-12-31
Value35.00.330.28
Percentage of DefinedBenefitPlanPlanAssetsTargetAllocationPercentage35.033.028.0

us-gaap:DefinedBenefitPlanRealEstate


Defined
Period End2020-09-302019-09-30
Value25.00.26
Percentage of DefinedBenefitPlanPlanAssetsTargetAllocationPercentage25.026.0

us-gaap:DepositsAssets

us-gaap:DepositsAssets


Deposits
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value1418000.01409000.01438000.01420000.01394000.01612000.01557000.01325000.01143000.01134000.01143000.01147000.01145000.01043000.01038000.01051000.01051000.01035000.0807000.0807000.0381000.0317000.0133000.0133000.0130000.0
Percentage of DepositsAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EmployeeRelatedLiabilitiesCurrent

us-gaap:EmployeeRelatedLiabilitiesCurrent


Employee
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value302016137.5418.2585.846
Percentage of EmployeeRelatedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized


Employee
Period End2020-12-31
Value96
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized100.0

us-gaap:GovernmentContractReceivable

us-gaap:GovernmentContractReceivable


Government
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value13216.1062.0061.8671.9550.501
Percentage of GovernmentContractReceivable100.0100.0100.0100.0100.0100.0100.0

us-gaap:HeldToMaturitySecuritiesCurrent

us-gaap:HeldToMaturitySecuritiesCurrent


Held
Period End2021-06-302021-03-312020-12-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value5495496071491491481041041041051041041041041041041041191191191191502644
Percentage of HeldToMaturitySecuritiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:HeldToMaturitySecuritiesFairValue

us-gaap:HeldToMaturitySecuritiesFairValue


Held
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value5495496070.01491491481041041041051041041041041041041041191191191191492744
Percentage of HeldToMaturitySecuritiesFairValue100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InventoryFinishedGoodsNetOfReserves

us-gaap:InventoryFinishedGoodsNetOfReserves


Inventory
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value16151713111113111214131312109.3148.0858.75311129.834126.7155.4584.91.64
Percentage of InventoryFinishedGoodsNetOfReserves100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InventoryRawMaterialsNetOfReserves

us-gaap:InventoryRawMaterialsNetOfReserves


Inventory
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value2333000.03376000.05175000.05711000.05605000.03889000.03912000.03077000.03431000.01526000.0870000.02049000.02519000.03705000.04276000.05936000.05423000.05091000.05243000.04517000.03192000.03593000.03518000.03095000.0526000.0
Percentage of InventoryRawMaterialsNetOfReserves100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InventoryWorkInProcessNetOfReserves

us-gaap:InventoryWorkInProcessNetOfReserves


Inventory
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value8.1069.3424.8966.9879.3317.4986.4829.869.1168.1768.6676.5075.2676.1618.43510109.6228.2929.6215.0316.1384.6183.1541.28
Percentage of InventoryWorkInProcessNetOfReserves100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths


Lessee
Period End2020-12-31
Value6856000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths100.0

us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity us-gaap:CreditFacility, us-gaap:LongtermDebtType

us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity

us-gaap:RevolvingCreditFacility, us-gaap:LineOfCredit


Line
Period End2020-11-06
Value150
Percentage of LineOfCreditFacilityMaximumBorrowingCapacity100.0

us-gaap:LongTermDebtFairValue us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:LongTermDebtFairValue

nvcr:A0ConvertibleSeniorNotesDue2025, us-gaap:ConvertibleDebt


Long
Period End2021-06-302021-03-312020-12-31
Value495477450
Percentage of LongTermDebtFairValue100.0100.0100.0

us-gaap:MoneyMarketFundsAtCarryingValue

us-gaap:MoneyMarketFundsAtCarryingValue


Money
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value315282214208179173158202171142131
Percentage of MoneyMarketFundsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent


Operating
Period End2020-12-31
Value6.64
Percentage of OperatingLeaseWeightedAverageDiscountRatePercent100.0

us-gaap:OtherAccountsPayableAndAccruedLiabilities

us-gaap:OtherAccountsPayableAndAccruedLiabilities


Other
Period End2020-12-312019-12-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value594937282425322622171814121011107.636
Percentage of OtherAccountsPayableAndAccruedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherPrepaidExpenseCurrent

us-gaap:OtherPrepaidExpenseCurrent


Other
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value156000.0471000.077000.0285000.0150000.0231000.095000.0
Percentage of OtherPrepaidExpenseCurrent100.0100.0100.0100.0100.0100.0100.0

us-gaap:PrepaidExpenseCurrent

us-gaap:PrepaidExpenseCurrent


Prepaid
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value3963000.02251000.03531000.02890000.02238000.01290000.0853000.0
Percentage of PrepaidExpenseCurrent100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestrictedCashCurrent

us-gaap:RestrictedCashCurrent


Restricted
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value1111110.920.8010.7862.0952.1342.112.0942.1342.1992.1692.1582.1262.1291.5370.267
Percentage of RestrictedCashCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue


Share
Period End2020-09-302020-06-302020-03-312019-12-31
Value53.7652.5550.2830.26
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue us-gaap:AwardType

nvcr:RestrictedStockUnitsRSUsAndPerformanceBasedShareUnitsPSUs


Share
Period End2021-06-302021-03-312020-12-312019-12-31
Value65.0264.6954.0630.26
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue0.00.00.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value18.8118.5916.7716.8416.0816.17
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue


Share
Period End2020-12-312019-12-31
Value1353661
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue100.0100.0

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueNonvested us-gaap:AwardType

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueNonvested

nvcr:RestrictedStockUnitsRSUsAndPerformanceBasedShareUnitsPSUs


Sharebased
Period End2020-12-31
Value772
Percentage of SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueNonvested100.0

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1


Sharebased
Period End2020-12-31
Value692
Percentage of SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1100.0

Line plots across dimensions of each concept


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:Revenues
us-gaap:StatementGeographical
(None,)
Revenuesus-gaap: Statement Geographical
us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents
(None,)
Stockholders Equityus-gaap: Statement Equity Components
us-gaap:CashAndCashEquivalentsAtCarryingValue
us-gaap:CashAndCashEquivalents
(None,)
Cash And Cash Equivalents At Carrying Valueus-gaap: Cash And Cash Equivalents
us-gaap:NoncurrentAssets
us-gaap:StatementGeographical
(None,)
Noncurrent Assetsus-gaap: Statement Geographical
us-gaap:PropertyPlantAndEquipmentGross
us-gaap:PropertyPlantAndEquipmentByType
(None,)
Property Plant And Equipment Grossus-gaap: Property Plant And Equipment By Type
us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents
(None,)
Stockholders Equityus-gaap: Statement Equity Components