NKTR


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

Table of contents



us-gaap:CommonStockValue
us-gaap:StatementEquityComponents
us-gaap:SharesOutstanding

us-gaap:CommonStockSharesIssued

us-gaap:CommonStockSharesOutstanding

us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareBasicAndDiluted

us-gaap:AllocatedShareBasedCompensationExpense
us-gaap:IncomeStatementLocation

us-gaap:ComprehensiveIncomeNetOfTax
us-gaap:StatementEquityComponents

us-gaap:CostOfGoodsAndServicesSold

us-gaap:CostsAndExpenses

us-gaap:GeneralAndAdministrativeExpense

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeTaxExpenseBenefit

us-gaap:InterestExpense

us-gaap:InterestPaidNet

us-gaap:NetIncomeLoss

us-gaap:NonoperatingIncomeExpense

us-gaap:OperatingIncomeLoss

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossNetOfTax

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:ProfitLoss

us-gaap:ResearchAndDevelopmentExpense

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:ProductOrService

us-gaap:Revenues

us-gaap:Assets

us-gaap:Liabilities

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents

us-gaap:AssetsCurrent

us-gaap:Cash

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:AccountsReceivableNetCurrent
dei:LegalEntity, us-gaap:TypeOfArrangement
us-gaap:CounterpartyName

us-gaap:InventoryNet

us-gaap:OtherAssetsCurrent

us-gaap:ConstructionInProgressGross

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:PropertyPlantAndEquipmentNet
us-gaap:StatementGeographical

us-gaap:DeferredTaxAssetsLiabilitiesNet

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OtherAssetsNoncurrent

us-gaap:AccountsPayableCurrent

us-gaap:ContractWithCustomerLiabilityCurrent

us-gaap:LiabilitiesCurrent

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OtherAccruedLiabilitiesCurrent

us-gaap:OtherLiabilitiesNoncurrent
dei:LegalEntity, us-gaap:TypeOfArrangement

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:StatementEquityComponents

us-gaap:CommonStockValue

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
us-gaap:StatementEquityComponents

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:IncreaseDecreaseInAccountsPayable

us-gaap:IncreaseDecreaseInAccountsReceivable

us-gaap:IncreaseDecreaseInInventories

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetIncomeLoss

us-gaap:ProfitLoss

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod

us-gaap:DeferredTaxLiabilities

us-gaap:DeferredTaxAssetsNet

us-gaap:UnrecognizedTaxBenefits

us-gaap:DeferredTaxAssetsValuationAllowance
us-gaap:CounterpartyName
nktr:CollaborativeArrangementAdditionalIndicationPayment
us-gaap:CounterpartyName, us-gaap:SubsequentEventType
us-gaap:CounterpartyName
nktr:CollaborativeArrangementCommittedFunding
us-gaap:CounterpartyName, us-gaap:SubsequentEventType
us-gaap:CounterpartyName
nktr:CollaborativeArrangementSuccessBasedPaymentsFirstIndication
us-gaap:CounterpartyName, us-gaap:SubsequentEventType
us-gaap:CounterpartyName
nktr:CollaborativeArrangementSuccessBasedPaymentsFirstPayment
us-gaap:CounterpartyName
nktr:CollaborativeArrangementSuccessBasedPaymentsSecondIndication
us-gaap:CounterpartyName, us-gaap:SubsequentEventType
us-gaap:ConsolidatedEntities, us-gaap:ProductOrService, us-gaap:TypeOfArrangement
nktr:CollaborativeArrangementsMaximumAggregateAdditionalCashPaymentsReceivableUponAchievementOfDevelopmentAndRegulatoryMilestones

nktr:EstimatedAnnualInterestRateOverLifeOfRoyaltyLiability
us-gaap:TypeOfArrangement
us-gaap:FairValueByLiabilityClass
nktr:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityResearchAndDevelopmentExpense

nktr:ImpairmentOfEquipmentAndOtherCostsForTerminatedProgram

nktr:ImpairmentOfEquipmentFromTerminatedProgram

nktr:IncreaseDecreaseInOperatingLeaseRightOfUseAssetsNetOfOperatingLeaseLiabilities

nktr:LicenseCollaborationOtherRevenue
dei:LegalEntity
dei:LegalEntity, us-gaap:TypeOfArrangement
us-gaap:TypeOfArrangement
nktr:MinimumTransactionRoyaltiesPaymentsNeededToPayTheDifferenceBetweenThresholds

nktr:NonCashInterestExpenseRelatedToSaleOfRoyalties

nktr:NonCashRoyaltyRevenueRelatedToSaleOfFutureRoyalties
us-gaap:TypeOfArrangement
us-gaap:TypeOfArrangement
nktr:PaymentOfTransactionRelatedToPurchaseAndSaleAgreementIfThresholdIsAchieved
us-gaap:TypeOfArrangement
nktr:PaymentOfTransactionRelatedToPurchaseAndSaleAgreementIfThresholdIsNotAchieved
us-gaap:TypeOfArrangement
nktr:ProceedsFromSaleOfPotentialFutureRoyaltiesGross

nktr:ProspectiveInterestRatePercentage
us-gaap:TypeOfArrangement
dei:LegalEntity, us-gaap:ProductOrService, us-gaap:IncomeStatementLocation
nktr:ReimbursementOfExpenses
us-gaap:TypeOfArrangement
nktr:RoyaltyMonetizationProceeds
us-gaap:TypeOfArrangement
nktr:TransactionCostsRelatedToSaleOfPotentialFutureRoyalties

us-gaap:ContractWithCustomerLiabilityRevenueRecognized

us-gaap:ContractWithCustomerPerformanceObligationSatisfiedInPreviousPeriod

us-gaap:DepreciationAndAmortization

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
us-gaap:FairValueByLiabilityClass
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInOtherComprehensiveIncome
us-gaap:FairValueByLiabilityClass
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityIssues

us-gaap:IncreaseDecreaseInContractWithCustomerLiability

us-gaap:IncreaseDecreaseInEmployeeRelatedLiabilities

us-gaap:IncreaseDecreaseInOtherAccruedLiabilities

us-gaap:IncreaseDecreaseInOtherOperatingAssets

us-gaap:LiabilitiesFairValueAdjustment

us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax

us-gaap:OtherNoncashIncomeExpense

us-gaap:PaymentsToAcquireAvailableForSaleSecuritiesDebt

us-gaap:ProceedsFromDerivativeInstrumentFinancingActivities

us-gaap:ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlans

us-gaap:ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities

us-gaap:ProceedsFromSaleOfAvailableForSaleSecuritiesDebt

us-gaap:ResearchAndDevelopmentInProcess

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
us-gaap:AwardType

us-gaap:StockIssuedDuringPeriodSharesShareBasedCompensation
us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation
us-gaap:StatementEquityComponents

nktr:AccruedClinicalTrialExpensesCurrent

nktr:AccruedContractManufacturingExpenseCurrent

nktr:AdvancePaymentsToContractManufacturers
us-gaap:LeaseContractualTerm
nktr:AreaOfLeasedSpace

nktr:CashRestrictedCashCashEquivalentsAndAvailableForSaleInvestments

nktr:DeferredTaxAssetsDepreciationPropertyAndEquipment

nktr:DeferredTaxAssetsLeaseLiability

nktr:DeferredTaxAssetsLiabilityRelatedToTheSaleOfFutureRoyalties

nktr:DepreciablePropertyPlantAndEquipmentGross
us-gaap:PropertyPlantAndEquipmentByType

nktr:DepreciablePropertyPlantAndEquipmentNet

nktr:LesseeOperatingLeaseLiabilityTenantImprovementReimbursements

nktr:LiabilitiesOnSaleOfFutureRoyaltiesUnamortizedTransactionCosts
us-gaap:TypeOfArrangement

nktr:LiabilityRelatedToSaleOfPotentialFutureRoyaltiesNonCurrent
us-gaap:TypeOfArrangement

nktr:LiabilityRelatedToSaleOfPotentialFutureRoyaltiesNonCurrentNetOfIssuanceCosts
us-gaap:TypeOfArrangement
us-gaap:IncomeTaxAuthority
nktr:NetOperatingLossCarryforwardForIncomeTax
us-gaap:PlanName
nktr:NumberOfSecuritiesAvailableForIssuanceUnderEquityCompensationPlans
us-gaap:LossContingenciesByNatureOfContingency
nktr:ObligationsUnderDirectorAndOfficerIndemnificationsPerIncident

nktr:PotentialDevelopmentMilestones
dei:LegalEntity
us-gaap:ConsolidatedEntities, us-gaap:TypeOfArrangement
nktr:Milestone, us-gaap:ConsolidatedEntities, us-gaap:ProductOrService, us-gaap:TypeOfArrangement
nktr:PotentialDevelopmentMilestonesExcludedFromTransactionPrice

nktr:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndRestrictedStockUnitsOutstanding
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:AssetsFairValueDisclosure
us-gaap:FairValueByMeasurementFrequency

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:InvestmentType

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:InvestmentType
us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:InvestmentType
us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:AvailableForSaleSecuritiesDebtSecurities
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:InvestmentType
us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument

us-gaap:AvailableForSaleSecuritiesDebtSecuritiesCurrent

us-gaap:AvailableForSaleSecuritiesDebtSecuritiesNoncurrent

us-gaap:ContractWithCustomerLiability
dei:LegalEntity

us-gaap:ContractWithCustomerLiabilityNoncurrent

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsOperatingLossCarryforwards

us-gaap:DeferredTaxAssetsTaxCreditCarryforwardsResearch

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost

us-gaap:DeferredTaxLiabilitiesLeasingArrangements

us-gaap:DeferredTaxLiabilitiesOther
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:DerivativeLiabilities
us-gaap:FairValueByMeasurementFrequency

us-gaap:DerivativeLiabilitiesNoncurrent
us-gaap:CounterpartyName, us-gaap:MeasurementInputType
us-gaap:DerivativeLiabilityMeasurementInput
us-gaap:MeasurementInputType

us-gaap:EmployeeRelatedLiabilitiesCurrent

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
us-gaap:FairValueByLiabilityClass
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue

us-gaap:InterestReceivableCurrent

us-gaap:InventoryFinishedGoodsNetOfReserves

us-gaap:InventoryRawMaterialsNetOfReserves

us-gaap:InventoryWorkInProcessNetOfReserves
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument
us-gaap:InvestmentsFairValueDisclosure
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:InvestmentType
us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument
us-gaap:InvestmentType

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:LettersOfCreditOutstandingAmount

us-gaap:PurchaseCommitmentRemainingMinimumAmountCommitted
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1

Plots across concepts


IncomeStatement
Comprehensive Income Net Of Tax
Expenses
Interest Expense
Balance Sheet
Goodwill
Assets
Inventory Net
Current Assets
Other Assets Current
NonCurrent Assets
Other Assets Noncurrent
PropertyPlantAndEquipmentNet
Property Plant And Equipment Net
Liabilities
Liabilities Current
Current Liabilities
Contract With Customer Liability Current
Stockholders Equity
Retained Earnings Accumulated Deficit
CashFlow
Net Income Loss
NetCashProvidedByUsedInOperatingActivities
Net Income Loss
NetCashProvidedByUsedInInvestingActivities
Payments To Acquire Property Plant And Equipment
OperatingLeaseLiability
Operating Lease Liability Current
NonoperatingIncomeExpense
Nonoperating Income Expense
LesseeOperatingLeaseLiabilityPaymentsDue
Lessee Operating Lease Liability Payments Due Next Twelve Months
InventoryNet
Inventory Finished Goods Net Of Reserves

Tables

  2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:CommonStockValue ████▁▁▁▁▁▁0.0180.0180.0180.0180.0170.0170.0170.0170.0170.017NA0.0170.0160.015NA0.0150.0150.0150.0130.0130.0130.0130.013NA0.0130.0130.0120.0120.0120.0110.011NA0.0110.0110.0110.0110.0110.0110.0110.0110.0110.009NANANA
 us-gaap:SharesOutstanding us-gaap:StatementEquityComponents us-gaap:CommonStock█▇▇▇▇▆▆▆▆▅▅▅▂▁182.29180.091179.394178.81177.863176.505175.786174.966174.228173.53173.057172.415162.379159.524NANANA153.212NANANA135.289NANANA131.216NANANA116.494NANANA115.259NANANA114.485NANANA94.517NANANA
us-gaap:CommonStockSharesIssued NA180.091NANANA176.505NANANA173.53NA172.415162.379159.524NA155.861154.731153.212137.796136.602136.151135.289133.217NA131.451131.216128.248127.286126.936116.494115.99NA115.461115.259115.073114.78114.591114.485114.426114.305114.02394.517NANANA
us-gaap:CommonStockSharesOutstanding █▆▆▅▄▃▃▂▂▁182.29180.091179.394178.81177.863176.505175.786174.966174.228173.53NA172.415162.379159.524NA155.861154.731153.212137.796136.602136.151135.289133.217NA131.451131.216128.248127.286126.936116.494115.99NA115.461115.259115.073114.78114.591114.485114.426114.305114.02394.517NANANA
us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted 181.37NA179.09178.327177.185NA175.402174.549173.859NANANA160.884NANA155.352153.666NA137.094136.35135.793NA132.631131.643NANANA127.04123.543NA115.812115.544115.309NA114.915NANANANANANANANANANA
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount 19.393NA16.575NA18.816NA17.163NANANA17.63.2NANANANANANANANANANANANANANANANANANANANA15.343NA14.30124.11623.885NA24.4621.60921.124NA19.13119.347NA
us-gaap:EarningsPerShareBasic NA-0.65-0.61-0.45-0.78-0.64-0.56-0.63-0.69-0.57-0.565.67-0.6-0.210.39-0.39-0.42-0.28-0.32-0.36-0.14-0.4-0.06-0.40.26-0.350.55-0.26-0.37-0.41-0.14-0.37-0.48NANANANANANANANANANANANA
us-gaap:EarningsPerShareDiluted NA-0.65-0.61-0.45-0.78-0.64-0.56-0.63-0.69-0.57-0.565.33-0.6-0.210.37-0.39-0.42-0.28-0.32-0.36-0.14-0.4-0.06-0.40.25-0.350.53-0.26-0.37-0.41-0.14-0.37-0.48NANANANANANANANANANANANA
us-gaap:EarningsPerShareBasicAndDiluted -0.68NA-0.61-0.45-0.78NA-0.56-0.63-0.68NANANA-0.6NANA-0.39-0.42-0.28000000000000014-0.32-0.36-0.14-0.4-0.06-0.4NANANA-0.26-0.37-0.4099999999999999-0.14-0.37-0.48-0.46-0.38-0.3-0.36-0.33-0.21-0.32-0.33-0.24-0.09-0.01-0.07
  2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
  2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
  2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:AllocatedShareBasedCompensationExpense ▆▄▆▅██▇▇█▆▅▂▁23.89821.98723.66723.37125.23625.00824.8824.52225.38524.20623.28720.6619.949NANA8.0998.1847.0576.1666.2646.3635.174.7624.565.1774.374.1224.1644.3614.5434.5644.3564.2454.1843.983.8014.2344.3844.8194.884.8024.6834.6114.361NA
us-gaap:ComprehensiveIncomeNetOfTax ▁▁▁▁▁▁▁▁▁▁▁█▁-123.793-118.418-110.381-72.408-144.523-113.257-99.206-107.981-114.912-99.15-97.519970.254-96.477NANA-59.684-63.352-42.6-43.167-48.787-19.163-54.486-8.526-52.87934.111-46.07270.314-32.584-45.96-47.151-16.896-43.689-55.101-53.438-42.772-34.862-40.037-37.611-25.821-36.433-36.184NANANANA
 us-gaap:ComprehensiveIncomeNetOfTax us-gaap:StatementEquityComponents us-gaap:AccumulatedOtherComprehensiveIncome-0.826NA-1.7957.592-5.872NA-0.6212.3054.72NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:ComprehensiveIncomeNetOfTax us-gaap:StatementEquityComponents us-gaap:RetainedEarnings-122.967NA-108.586-80.0-138.651NA-98.585-110.286-119.632NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:CostOfGoodsAndServicesSold ▃▂▃▃▁▄▂▂▃▅▂▃▄█▃▇▄5.7564.3235.575.7733.8115.9894.9275.0185.447.4614.7835.5226.6469.7535.6748.9896.131NANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:CostsAndExpenses ▃▃▃▂█▄▂▃▄▄▂▁▂133.039134.183133.083126.556184.204143.5127.958134.285148.909140.121126.396114.117124.757NANA85.24579.16569.59669.23771.09368.36668.73459.53366.1365.75857.0452.5551.42956.17367.0467.43466.46768.40864.52751.31250.67255.88150.2548.40651.59545.16665.85344.1540.69636.595
us-gaap:GeneralAndAdministrativeExpense █▆▅▄▅▆▄▃▄▄▁▂▁31.67927.13626.98224.34726.21727.14223.98322.58125.00623.77718.71820.26118.687NANA15.99611.97612.7610.25311.03510.22813.2359.54410.18410.30312.2489.139.6199.9289.83210.6439.22611.12910.86410.06810.26810.41411.49812.3511.18511.72711.58510.18110.2079.013
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest ▁▁▁▁▁▁▁▁▁▁▁█▁-122.875-117.075-108.565-79.856-138.451-111.886-98.486-110.187-119.495-100.05-97.043975.345-95.527NANA-59.772-63.733-41.756-43.085-48.476-19.331-54.1-8.111-52.49334.033-46.82970.853NA-46.01NANANANANANANANANANANANANANANANA
us-gaap:IncomeTaxExpenseBenefit ▃▃▃▃▃▅▄▃▂▁▂█▄0.0920.1280.0210.1440.21.5520.322-0.278-0.983-1.838-0.93.8850.265NANA0.0990.1330.4430.1390.1270.1670.0370.0920.1640.213-1.1460.2480.1950.1911.6350.1930.2050.212-0.0330.2220.0930.1240.7180.0920.060.1480.2640.2780.0310.308
us-gaap:InterestExpense NA0.00.00.6476.2045.4285.4255.2315.2265.4155.4425.3855.34NANA5.515.4025.555.6145.6275.6775.7914.2024.1184.1714.4574.3914.4884.5334.5654.5874.6564.645-7.95911.1847.9314.333-2.5252.5432.572.585-2.4882.8262.9092.951
us-gaap:InterestPaidNet NA0.00.04.7914.9514.974.7744.654.8054.774.9064.8434.952NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:NetIncomeLoss ▁▁▁▁▁▁▁▁▁▁▁█▁▂▂▁▁▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂-122.967-117.203-108.586-80.0-138.651-112.164-98.808-109.909-118.512-98.212-96.143971.46-95.792-33.82660.871-59.871-63.866-42.199-43.224-48.603-19.498-54.137-8.203-52.65733.82-45.68370.605-32.637-46.201-47.659-16.543-42.748-55.063-52.926-43.547-34.285-41.097-37.495-24.068-36.381-36.034-22.58-8.711-0.517-6.13
us-gaap:NonoperatingIncomeExpense ▁▄▅▆▅▆▇██▇██▃-13.483-6.354-5.515-2.147-4.82-2.2480.2540.7831.1920.2451.5911.745-8.788NANA-9.116-9.296-9.612-10.184-10.151-9.847-24.736-8.53-9.024-9.01-9.341-9.468-9.526-9.608-10.13-9.825-9.938-9.447-9.578-10.425-7.204-3.041-2.309-2.638-2.057-2.019-1.777-2.208-2.353-2.464
us-gaap:OperatingIncomeLoss ▁▁▁▁▁▁▁▁▁▁▁█▁▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂-109.392-110.721-103.05-77.709-133.631-109.638-98.74-110.97-120.687-100.295-98.634973.6-86.739-24.03469.485-50.656-54.437-32.145-32.901-38.325-9.484-29.3640.419-43.46943.043-37.48880.321-22.916-36.402-35.894-6.525-32.605-45.404-43.381-32.9-26.988-37.932-34.468-21.338-34.264-33.867-20.539-6.2251.867-3.358
us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax ▅▇█▅▁▅▃▆▆-0.060.1350.349-0.096-0.751-0.165-0.360.1080.035NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherComprehensiveIncomeLossNetOfTax ▄▃▃█▁▃▄▅▆-0.826-1.215-1.7957.592-5.872-1.093-0.3981.9283.6NA-1.376-1.206-0.685NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherNonoperatingIncomeExpense ▁▁▂▃▅▇▇█████▁1.4121.8292.915.1918.35210.37111.49211.98912.48312.04811.84712.1051.571NANA0.9060.6580.7210.3320.4580.8750.3250.8980.2460.2110.678-0.007-0.0360.1780.7390.262-0.0060.4270.070.1560.0970.66-0.445-0.717-0.0160.1340.3910.2490.1630.024
us-gaap:ProfitLoss ▁▁▁▁▁▁▁▁▁▁▁█▁-122.967-117.203-108.586-80.0-138.651-113.438-98.808-109.909-118.512-98.212-96.143971.46-95.792NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:ResearchAndDevelopmentExpense ▆▇▇▆▇▇▇▇█▇▇▆▇▅▄▄▄▃▃▃▃▃▂▃▃▂▂▂▂▃▃▃▃▃▂▂▂▂▂▂▂▂▁▁▁95.604102.724100.53196.436108.987110.36999.048106.686118.463108.883102.89588.33499.42481.42965.71460.2661.05850.23251.95152.3549.26847.13543.22945.41247.01138.49434.236.70238.33848.24843.91452.2345.61846.37334.01633.20135.08533.30231.01832.2730.17631.45527.72425.623.286
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax ▁▁▁▁▁▁▁▁▁▁▁█▁▂▂▁▁▁▁▁▁▁▁▁▂▁▂▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁23.64723.46230.03348.84750.57333.86229.21823.31528.22239.82627.7621087.71738.01895.466152.92834.58924.72837.4536.33632.76858.88239.3759.95222.661108.80119.551132.87128.51319.77131.14660.90933.86223.00421.14618.41223.68417.94915.78227.06817.33111.29945.31437.92542.56333.237
us-gaap:Revenues ▁▁▁▁▁▁▁▁▁▁▁█▁▂▂▁▁▁▁▁▁▁▁▁▂▁▂▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁23.64723.46230.03348.84750.57333.86229.21823.31528.22239.82627.7621087.71738.01895.466152.92834.58924.72837.4536.33632.76858.88239.3759.95222.661108.80119.551132.87128.51319.77131.14660.90933.86223.00421.14618.41223.68417.94915.78227.06817.33111.29945.31437.92542.56333.237
  2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
  2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:Assets ▁▂▂▂▅▆▇▇██1456.5611538.7671508.6661594.8781887.9331977.3562088.2942099.6532166.4822150.172NA2313.087496.79508.866NA475.859528.486568.871425.095463.099491.879502.061449.246NA499.212441.621476.902478.137487.013434.527383.035NA447.901497.79541.452668.443694.789606.55648.093670.854704.478521.225NANANA
us-gaap:Liabilities ▄▄▁▁█▇█▆▆▄462.055461.472337.685338.638591.507571.965599.583542.498532.971432.597NA452.673438.507421.038NA472.473483.737480.746492.948502.35492.154495.632410.193NA421.907405.289429.684513.497496.822524.43433.285NA450.521450.772446.12536.159532.302408.739417.296419.578423.24430.563NANANA
us-gaap:LiabilitiesAndStockholdersEquity ▁▂▂▂▅▆▇▇██1456.5611538.7671508.6661594.8781887.9331977.3562088.2942099.6532166.4822150.172NA2313.087496.79508.866NA475.859528.486568.871425.095463.099491.879502.061449.246NA499.212441.621476.902478.137487.013434.527383.035NA447.901497.79541.452668.443694.789606.55648.093670.854704.478521.225NANANA
us-gaap:StockholdersEquity ▅▅▅▆▆▆▇▇▇▇██▁▁994.5061077.2951170.9811256.241296.4261405.3911488.7111557.1551633.5111717.5751790.1221860.41458.28387.828NA3.38644.74988.125-67.853-39.251-0.2756.42939.053NA77.30536.33247.218-35.36-9.809-89.903-50.25NA-2.6247.01895.332132.284162.487197.811230.797251.276281.23890.662NANANA
  2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:AssetsCurrent ▂▂▁▂▆▆██▇▆1099.0511138.0051043.8561151.9681429.3241421.551578.8241596.8171490.1141437.687NA1905.947336.015326.82NA288.165380.985425.952282.522318.32344.845350.051286.351NA347.293288.2324.12298.223304.77257.882207.942NA267.036314.631346.945468.291420.654276.706297.62389.095539.373353.979NANANA
us-gaap:Cash ▂▂▂▂▂▂█▁▂▂7.5596.2856.3686.0715.9945.82928.1662.2946.3895.812NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:CashAndCashEquivalentsAtCarryingValue ▅▇▁▁█▃▂▂▃▇150.164198.95555.84358.206227.03596.36381.22485.424106.752194.905NA911.12534.8054.762NA16.14923.4859.6463.29555.67672.54955.5718.81920.875129.45212.36532.00830.69932.44339.06765.41141.43228.53125.43710.338136.154148.48515.31243.00811.62622.48517.75512.90623.24420.572
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents ▂▂▁▁▂▁▁▁▁▂▂█150.164198.95555.84358.206227.03596.36381.22485.424106.752194.905222.261911.125NA4.762NANANA59.64NANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:AccountsReceivableNetCurrent ▁▅▆█▆▄▆▄▆▆29.15638.88942.92547.24542.03136.80241.20537.29942.89443.213NA35.31515.6075.014NA4.1141.56515.67814.24927.77739.67719.9472.966NA2.8853.60746.0743.0471.8552.2294.557NA3.6475.8053.91111.36110.8034.93812.9148.462.1625.102NANANA
us-gaap:InventoryNet █▆▃▃▅▃▄▃▂▁16.80815.29212.89212.58414.3212.66513.7213.18811.77811.381NA11.88410.67510.726NA11.00813.01611.10910.75410.26211.2511.34610.352NA12.51112.95211.69514.11112.87213.45215.076NA18.38118.26916.75414.71514.10812.65610.6549.79711.7127.266NANANA
us-gaap:OtherAssetsCurrent ▂▂▃█▁▂▂▁▃▃15.77118.0221.5537.7713.81115.38715.21213.21319.35221.293NA34.9413.07414.948NA7.4967.88110.0634.0085.4275.5939.8145.214NA6.0928.8174.7084.6295.9725.1754.759NA8.81313.3637.0039.34113.63417.9447.5657.9326.8595.679NANANA
  2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:ConstructionInProgressGross NA4.7NANANA4.552NANANA5.088NANANA1.4NANANA3.456NANANA8.456NANANA16.309NANANA6.261NANANA2.765NANANA1.75NANANA2.557NANANA
us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment NA138.488NANANA127.875NANANA120.507NANANA115.09NANANA111.243NANANA102.712NANANA93.807NANANA84.148NANANA72.666NANANA62.237NANANA53.994NANANA
us-gaap:PropertyPlantAndEquipmentNet ▅▆▆▆▇███▅▁58.5159.66260.18961.37262.30764.99964.61465.45358.15848.851NA45.046.32847.463NA64.92966.64265.60165.55367.77469.85271.33672.532NA69.26770.36869.27571.0772.96866.97465.082NA70.11272.21573.25673.71375.55778.57681.64985.38187.62889.773NANANA
us-gaap:DeferredTaxAssetsLiabilitiesNet NA0.226NANANA0.196NANANA0.17NANANA0.284NANANA0.3NANANA0.19NANANA0.176NANANA0.15NANANA0.095NANANA0.062NANANA0.159NANANA
us-gaap:OperatingLeaseRightOfUseAsset ▇██████▅▅▁124.971126.476128.985131.458133.901134.177134.88882.17783.4750.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherAssetsNoncurrent ▄█▂▁1.4351.4611.421.413NA1.012.3852.42.3674.244NA3.3620.7890.994NA1.1040.8650.8170.5190.5040.6814.17313.862NA6.1516.5527.0067.3437.7748.178.51NA9.2529.4439.7285.6935.3450.9990.8450.9360.9760.972NANANA
  2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:AccountsPayableCurrent ██▅▇█▇█▂▃▁22.43422.13915.48419.24621.78919.23421.9639.34611.0125.854NA10.67411.3754.782NA6.2416.9512.8167.1182.3282.3492.3632.279NA5.0242.7035.4287.4373.0649.1153.723NA4.2182.8632.6243.1181.7613.0192.1753.2433.4817.194NANANA
us-gaap:ContractWithCustomerLiabilityCurrent NA0.0910.5071.7573.0075.5178.3929.89211.09213.892NA17.988NA18.949NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LiabilitiesCurrent ▂▂▂▂█▇▂▂▁▁123.633115.779126.5123.958377.471353.893125.35113.3799.71882.002NA96.89780.69756.163NA72.61378.51572.22276.30579.28265.94561.246208.098NA75.44464.04780.54984.35579.31398.22180.913NA83.22178.53769.47276.861270.753275.532279.04261.27458.8864.108NANANA
us-gaap:OperatingLeaseLiabilityCurrent █▇███▆▄▁15.76813.91515.34815.13915.61312.5169.3183.749NA0.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherAccruedLiabilitiesCurrent █▂▂▄▄▄▄▇█▁14.8339.5859.6311.42411.84411.41411.39413.8314.6249.087NA14.99310.67610.064NA6.6836.5764.7116.7616.9196.2844.15616.561NANA6.418NANANANANANANANANANANANANANANANANANANA
  2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:OtherLiabilitiesNoncurrent ▄█▃▁4.136.5163.2912.239NA0.7680.6430.6430.6669.99NA7.0516.5135.992NA3.5924.1165.05.5156.026.5369.7410.672NA17.10114.72115.40217.76817.77619.2569.217NA9.0158.40710.72810.22310.8247.1596.4625.846.2055.571NANANA
us-gaap:OperatingLeaseLiabilityNoncurrent ▇▇▇████▁134.556136.373139.022141.633142.297142.73145.09994.822NA0.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo NA20.141NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree NA20.78NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour NA21.439NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive NA22.117NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive NA97.764NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:StockholdersEquity ▅▅▅▆▆▆▇▇▇▇██▁▁994.5061077.2951170.9811256.241296.4261405.3911488.7111557.1551633.5111717.5751790.1221860.41458.28387.828NA3.38644.74988.125-67.853-39.251-0.2756.42939.053NA77.30536.33247.218-35.36-9.809-89.903-50.25NA-2.6247.01895.332132.284162.487197.811230.797251.276281.23890.662NANANA
us-gaap:CommonStockValue ████▁▁▁▁▁▁0.0180.0180.0180.0180.0170.0170.0170.0170.0170.017NA0.0170.0160.015NA0.0150.0150.0150.0130.0130.0130.0130.013NA0.0130.0130.0120.0120.0120.0110.011NA0.0110.0110.0110.0110.0110.0110.0110.0110.0110.009NANANA
us-gaap:AdditionalPaidInCapitalCommonStock █▇▆▆▅▄▃▃▂▁3429.7343388.733363.9983338.8763306.6553271.0973241.163210.3983178.7733147.925NA3094.0952262.2192207.865NA2150.0192131.6982111.4831912.9071898.3421888.5311876.0721854.21NA1831.0571824.1951789.011776.7461769.7131643.661636.162NA1623.2071617.7441612.621606.81602.1411597.4281592.8031587.4611580.991354.232NANANA
us-gaap:RetainedEarningsAccumulatedDeficit ▁▂▃▃▄▅▆▆▇█-2432.125-2309.158-2191.955-2083.369-2003.369-1864.718-1751.28-1652.472-1542.563-1424.051NA-1229.696-2201.156-2117.941NA-2144.986-2085.115-2021.01-1978.811-1935.587-1886.984-1867.486-1813.349NA-1752.489-1786.309-1740.626-1811.231-1778.594-1732.393-1684.734NA-1625.443-1570.38-1517.454-1473.907-1439.622-1398.525-1361.03-1336.962-1300.581-1264.547NANANA
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax ▄▅▆█▁▆▆▇▅▂-3.121-2.295-1.080.715-6.877-1.005-1.186-0.788-2.716-6.316NA-4.002-2.796-2.111NA-1.662-1.849-2.363-1.962-2.019-1.835-2.17-1.821NA-1.276-1.567-1.178-0.887-0.94-1.181-1.689NA-0.395-0.3570.155-0.62-0.043-1.103-0.9870.7660.8180.968NANANA
us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue 23.898NA23.66724.39624.211NA24.8824.52225.385NA23.28720.65919.949NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities ▁▁▁▁▁▁▁▁▁▁▁█▁-77.085-98.634-52.675-83.903-78.075-125.223-68.641-53.922-80.895-117.55-71.412959.642-52.466NANANANANANANANANANANANANANANANANANANA-38.111-47.376-27.171-20.591-34.618-42.214-21.87-34.788-14.8720.407-22.162-19.953-34.163
us-gaap:NetCashProvidedByUsedInInvestingActivities ▇▇▇███▇▇▇▇▃▁▇10.45892.7448.668157.038197.767135.48158.25325.29-12.13887.54-621.271-894.41548.21NANANANANANANANANANANANANANANANANANANA43.68662.227-5.3917.75948.42514.40152.73322.799-201.885-17.16311.49421.3611.021
us-gaap:NetCashProvidedByUsedInFinancingActivities ▃▄▃▁▃▃▃▃▃▃▃█▃17.856148.9951.531-241.95711.0774.9066.2497.3064.8942.6683.859811.08734.352NANANANANANANANANANANANANANANANANANANA-2.4740.21-93.1840.273119.502-0.3060.0261.116221.4991.5120.6061.04.417
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect ▄▅▄▃▅▄▄▄▄▄▁█▄-48.791143.112-2.363-168.829130.67215.139-4.2-21.328-88.153-27.356-688.864876.3230.043NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:IncreaseDecreaseInAccountsPayable ▃▅▁▂▄▁█▂▅▂▁▂▅0.7795.719-3.762-2.2622.687-3.14212.629-1.6765.156-1.64-3.18-0.7016.492NANA-0.8964.117-4.2814.7820.051-0.0340.113-0.515-2.2512.241-2.689-1.8524.308-6.1265.502-1.9341.2761.3550.279-0.4811.37-1.290.816-1.051-0.254-2.8952.519-0.4280.4351.748
us-gaap:IncreaseDecreaseInAccountsReceivable ▁▁▂▅▅▂▄▂▃▆▃█▃-9.733-8.036-4.325.2145.229-4.4033.906-5.595-0.3199.326-3.37819.708-0.151NANA2.549-14.1131.429-13.528-11.919.7316.981-0.7140.795-0.722-42.46743.0271.192-0.374-2.328-1.4842.394-2.158-0.16-5.3960.5585.865-7.9764.4546.3-22.94219.549-3.8931.7372.908
us-gaap:IncreaseDecreaseInInventories ▇█▅▁▇▂▅▆▅▁▆▆▄1.5162.40.308-1.7361.655-1.0550.5321.410.397-1.9151.4121.209-0.051NANA-2.0081.9070.3550.492-0.988-0.0960.9940.228-2.387-0.4411.257-2.4161.239-0.58-1.624-5.4032.0980.1129.711-6.1570.6071.4522.0020.857-1.9154.446-4.1941.6831.0742.232
us-gaap:NetCashProvidedByUsedInOperatingActivities ▁▁▁▁▁▁▁▁▁▁▁█▁-77.085-98.634-52.675-83.903-78.075-125.223-68.641-53.922-80.895-117.55-71.412959.642-52.466NANANANANANANANANANANANANANANANANANANA-38.111-47.376-27.171-20.591-34.618-42.214-21.87-34.788-14.8720.407-22.162-19.953-34.163
us-gaap:NetIncomeLoss ▁▁▁▁▁▁▁▁▁▁▁█▁▂▂▁▁▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂-122.967-117.203-108.586-80.0-138.651-112.164-98.808-109.909-118.512-98.212-96.143971.46-95.792-33.82660.871-59.871-63.866-42.199-43.224-48.603-19.498-54.137-8.203-52.65733.82-45.68370.605-32.637-46.201-47.659-16.543-42.748-55.063-52.926-43.547-34.285-41.097-37.495-24.068-36.381-36.034-22.58-8.711-0.517-6.13
us-gaap:ProfitLoss ▁▁▁▁▁▁▁▁▁▁▁█▁-122.967-117.203-108.586-80.0-138.651-113.438-98.808-109.909-118.512-98.212-96.143971.46-95.792NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInInvestingActivities ▇▇▇███▇▇▇▇▃▁▇10.45892.7448.668157.038197.767135.48158.25325.29-12.13887.54-621.271-894.41548.21NANANANANANANANANANANANANANANANANANANA43.68662.227-5.3917.75948.42514.40152.73322.799-201.885-17.16311.49421.3611.021
us-gaap:PaymentsToAcquirePropertyPlantAndEquipment ▂▂▂▂▁▃▄█▄▆▂▂▁2.8761.7541.912.6940.93.6715.32311.6435.6488.6871.8222.7450.985NANA2.2554.0892.6510.5071.5551.6792.4734.1383.5251.0593.8860.8980.6684.5242.7090.5880.4780.3164.8392.5721.6561.5161.4281.4493.083.7659.29713.3644.8233.973
  2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInFinancingActivities ▃▄▃▁▃▃▃▃▃▃▃█▃17.856148.9951.531-241.95711.0774.9066.2497.3064.8942.6683.859811.08734.352NANANANANANANANANANANANANANANANANANANA-2.4740.21-93.1840.273119.502-0.3060.0261.116221.4991.5120.6061.04.417
  2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302018-03-312017-12-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value18000.018000.018000.018000.017000.017000.017000.017000.017000.017000.017000.016000.015000.015000.015000.015000.013000.013000.013000.013000.013000.013000.013000.012000.012000.012000.011000.011000.011000.011000.011000.011000.011000.011000.011000.011000.011000.09000.0
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Shares Outstanding

us-gaap:SharesOutstanding us-gaap:StatementEquityComponents

us-gaap:SharesOutstanding

us-gaap:CommonStock


Shares
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value1821801791781771761751741741731731721621591531351311161151149493
Percentage of SharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Common Stock Shares Issued

us-gaap:CommonStockSharesIssued

us-gaap:CommonStockSharesIssued


Common
Period End2020-12-312019-12-312018-12-312018-06-302018-03-312017-12-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312011-01-312010-12-31
Value1801761731721621591551541531371361361351331311311281271261161151151151151141141141141141141994
Percentage of CommonStockSharesIssued100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Common Stock Shares Outstanding

us-gaap:CommonStockSharesOutstanding

us-gaap:CommonStockSharesOutstanding


Common
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302018-03-312017-12-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value18218017917817717617517417417317216215915515415313713613613513313113112812712611611511511511511411411411411411494
Percentage of CommonStockSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Share Outstanding Basic And Diluted

us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted

us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted


Weighted
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-03-312017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-30
Value181179178177175174173160155153137136135132131127123115115115114
Percentage of WeightedAverageNumberOfShareOutstandingBasicAndDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount


Antidilutive
Period End2021-03-312020-09-302020-03-312019-09-302018-09-302018-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-30
Value19161817173.2151424232421211919
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareBasic


Earnings
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-0.65-0.61-0.45-0.78-0.64-0.56-0.63-0.69-0.57-0.565.67-0.6-0.210.39-0.39-0.42-0.28-0.32-0.36-0.14-0.4-0.06-0.40.26-0.350.55-0.26-0.37-0.41-0.14-0.37-0.48
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareDiluted


Earnings
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-0.65-0.61-0.45-0.78-0.64-0.56-0.63-0.69-0.57-0.565.33-0.6-0.210.37-0.39-0.42-0.28-0.32-0.36-0.14-0.4-0.06-0.40.25-0.350.53-0.26-0.37-0.41-0.14-0.37-0.48
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Basic And Diluted

us-gaap:EarningsPerShareBasicAndDiluted

us-gaap:EarningsPerShareBasicAndDiluted


Earnings
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-03-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-0.68-0.61-0.45-0.78-0.56-0.63-0.68-0.6-0.39-0.42-0.28-0.32-0.36-0.14-0.4-0.06-0.4-0.26-0.37-0.41-0.14-0.37-0.48-0.46-0.38-0.3-0.36-0.33-0.21-0.32-0.33-0.24-0.09-0.01-0.07
Percentage of EarningsPerShareBasicAndDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Allocated Share Based Compensation Expense

us-gaap:AllocatedShareBasedCompensationExpense

us-gaap:AllocatedShareBasedCompensationExpense


Allocated
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value232123232525242425242320198.0998.1847.0576.1666.2646.3635.174.7624.565.1774.374.1224.1644.3614.5434.5644.3564.2454.1843.983.8014.2344.3844.8194.884.8024.6834.6114.361
Percentage of AllocatedShareBasedCompensationExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax101.193.778.847.849.973.985.2105.289.960.883.91.952.523.433.118.817.019.110.813.17.920.14.822.43.114.622.114.67.512.918.519.821.616.023.627.817.828.242.510.312.210.2

us-gaap:AllocatedShareBasedCompensationExpense us-gaap:IncomeStatementLocation

nktr:ImpairmentAndOther


Allocated
Period End2020-09-302020-06-302020-03-312019-06-302019-03-31
Value0.00.01.0250.00.0
Percentage of AllocatedShareBasedCompensationExpense0.00.04.10.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.02.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax nktr:ImpairmentAndOther0.00.00.00.00.0

us-gaap:CostOfSales


Allocated
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-312013-09-302013-06-30
Value0.7270.6570.7440.6640.7611.0861.1191.0860.821.1591.1761.1630.4180.5380.6080.4340.3960.4020.3880.3050.2740.2390.3240.2940.2680.280.3230.3270.324
Percentage of AllocatedShareBasedCompensationExpense3.03.03.12.83.04.34.54.43.24.85.15.62.16.67.46.16.46.46.15.95.85.26.36.76.56.77.17.27.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.12.82.51.41.53.23.84.72.92.94.20.11.11.62.51.21.11.20.70.80.51.10.31.50.21.01.00.51.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:CostOfSales0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:GeneralAndAdministrativeExpense


Allocated
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-312013-09-302013-06-30
Value9.0098.048.7118.5467.9978.2478.0818.0067.9427.3036.7466.5068.4752.9412.9123.0352.5892.7372.7762.4132.282.1962.4312.1272.082.0522.2332.1662.055
Percentage of AllocatedShareBasedCompensationExpense37.736.636.836.631.733.032.532.631.330.229.031.542.536.335.643.042.043.743.646.747.948.247.048.750.549.349.247.547.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax38.134.329.017.515.824.427.734.328.118.324.30.622.38.511.88.17.18.44.76.13.89.72.210.91.67.27.23.66.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:GeneralAndAdministrativeExpense0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ResearchAndDevelopmentExpense


Allocated
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-312013-09-302013-06-30
Value141314141515151516151512114.624.6643.5883.1813.1253.1992.4522.2082.1252.4221.9491.7741.8321.9872.0711.977
Percentage of AllocatedShareBasedCompensationExpense59.360.460.060.661.262.763.062.965.565.066.062.955.457.057.050.851.649.950.347.446.446.646.844.643.044.043.745.445.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax59.956.647.329.030.646.353.766.258.939.555.31.229.113.418.99.68.89.55.46.23.79.42.210.01.36.46.43.45.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ResearchAndDevelopmentExpense0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Comprehensive Income Net Of Tax

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTax


Comprehensive
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value-123.793-118.418-110.381-72.408-144.523-113.257-99.206-107.981-114.912-99.15-97.519970-96.477-59.684-63.352-42.6-43.167-48.787-19.163-54.486-8.526-52.87934-46.07270-32.584-45.96-47.151-16.896-43.689-55.101-53.438-42.772-34.862-40.037-37.611-25.821-36.433-36.184
Percentage of ComprehensiveIncomeNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-523.5-504.7-367.5-148.2-285.8-334.5-339.5-463.1-407.2-249.0-351.389.2-253.8-172.6-256.2-113.8-118.8-148.9-32.5-138.4-14.2-233.331.4-235.752.9-114.3-232.5-151.4-27.7-129.0-239.5-252.7-232.3-147.2-223.1-238.3-95.4-210.2-320.2

us-gaap:ComprehensiveIncomeNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Comprehensive
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value-0.826-1.7957.592-5.872-0.6212.3054.72
Percentage of ComprehensiveIncomeNetOfTax0.71.6-10.54.10.6-2.1-4.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-3.5-6.015.5-11.6-2.19.916.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Comprehensive
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value-122.967-108.586-80.0-138.651-98.585-110.286-119.632
Percentage of ComprehensiveIncomeNetOfTax99.398.4110.595.999.4102.1104.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-520.0-361.6-163.8-274.2-337.4-473.0-423.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.0

Cost Of Goods And Services Sold

us-gaap:CostOfGoodsAndServicesSold

us-gaap:CostOfGoodsAndServicesSold


Cost
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value5.7564.3235.575.7733.8115.9894.9275.0185.447.4614.7835.5226.6469.7535.6748.9896.131
Percentage of CostOfGoodsAndServicesSold100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax24.318.418.511.87.517.716.921.519.318.717.20.517.510.23.726.024.8

Costs And Expenses

us-gaap:CostsAndExpenses

us-gaap:CostsAndExpenses


Costs
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value133134133126184143127134148140126114124857969697168685966655752515667676668645150555048514565444036
Percentage of CostsAndExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax562.6571.9443.1259.1364.2423.8437.9576.0527.6351.8455.310.5328.2246.5320.1185.8190.5217.0116.1174.699.3291.860.4291.739.5180.4284.1215.2110.7196.3297.4305.1278.7214.0311.3318.4178.8297.7399.7145.3116.495.6110.1

General And Administrative Expense

us-gaap:GeneralAndAdministrativeExpense

us-gaap:GeneralAndAdministrativeExpense


General
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value31272624262723222523182018151112101110139.5441010129.139.6199.9289.832109.2261110101010111211111110109.013
Percentage of GeneralAndAdministrativeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax134.0115.789.849.851.880.282.196.988.659.767.41.949.246.248.434.128.233.717.433.615.944.99.562.66.933.750.231.617.527.248.451.454.743.458.072.945.664.5103.825.626.824.027.1

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

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest


Income
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-03-31
Value-122.875-117.075-108.565-79.856-138.451-111.886-98.486-110.187-119.495-100.05-97.043975-95.527-59.772-63.733-41.756-43.085-48.476-19.331-54.1-8.111-52.49334-46.82970-46.01
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-519.6-499.0-361.5-163.5-273.8-330.4-337.1-472.6-423.4-251.2-349.689.7-251.3-172.8-257.7-111.5-118.6-147.9-32.8-137.4-13.5-231.631.3-239.553.3-232.7

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxExpenseBenefit


Income
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value92000.0128000.021000.0144000.0200000.01552000.0322000.0-278000.0-983000.0-1838000.0-900000.03885000.0265000.099000.0133000.0443000.0139000.0127000.0167000.037000.092000.0164000.0213000.0-1146000.0248000.0195000.0191000.01635000.0193000.0205000.0212000.0-33000.0222000.093000.0124000.0718000.092000.060000.0148000.0264000.0278000.031000.0308000.0
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.40.50.10.30.44.61.1-1.2-3.5-4.6-3.20.40.70.30.51.20.40.40.30.10.20.70.2-5.90.20.71.05.20.30.60.9-0.21.20.40.74.50.30.31.30.60.70.10.9

Interest Expense

us-gaap:InterestExpense

us-gaap:InterestExpense


Interest
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.00.00.6476.2045.4285.4255.2315.2265.4155.4425.3855.345.515.4025.555.6145.6275.6775.7914.2024.1184.1714.4574.3914.4884.5334.5654.5874.6564.645-7.959117.9314.333-2.5252.5432.572.585-2.4882.8262.9092.951
Percentage of InterestExpense0.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.01.312.316.018.622.418.513.619.60.514.015.921.814.815.517.29.614.77.018.23.822.83.315.722.914.77.513.720.2-37.660.733.524.1-16.09.414.822.9-5.57.56.88.9

Interest Paid Net

us-gaap:InterestPaidNet

us-gaap:InterestPaidNet


Interest
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0.00.04.7914.9514.974.7744.654.8054.774.9064.8434.952
Percentage of InterestPaidNet0.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.09.89.814.716.319.917.012.017.70.413.0

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-122.967-117.203-108.586-80.0-138.651-112.164-98.808-109.909-118.512-98.212-96.143971-95.792-33.82660-59.871-63.866-42.199-43.224-48.603-19.498-54.137-8.203-52.65733-45.68370-32.637-46.201-47.659-16.543-42.748-55.063-52.926-43.547-34.285-41.097-37.495-24.068-36.381-36.034-22.58-8.711-0.517-6.13
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-520.0-499.5-361.6-163.8-274.2-331.2-338.2-471.4-419.9-246.6-346.389.3-252.0-35.439.8-173.1-258.3-112.7-119.0-148.3-33.1-137.5-13.7-232.431.1-233.753.1-114.5-233.7-153.0-27.2-126.2-239.4-250.3-236.5-144.8-229.0-237.6-88.9-209.9-318.9-49.8-23.0-1.2-18.4

Nonoperating Income Expense

us-gaap:NonoperatingIncomeExpense

us-gaap:NonoperatingIncomeExpense


Nonoperating
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-13483000.0-6354000.0-5515000.0-2147000.0-4820000.0-2248000.0254000.0783000.01192000.0245000.01591000.01745000.0-8788000.0-9116000.0-9296000.0-9612000.0-10184000.0-10151000.0-9847000.0-24736000.0-8530000.0-9024000.0-9010000.0-9341000.0-9468000.0-9526000.0-9608000.0-10130000.0-9825000.0-9938000.0-9447000.0-9578000.0-10425000.0-7204000.0-3041000.0-2309000.0-2638000.0-2057000.0-2019000.0-1777000.0-2208000.0-2353000.0-2464000.0
Percentage of NonoperatingIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-57.0-27.1-18.4-4.4-9.5-6.60.93.44.20.65.70.2-23.1-26.4-37.6-25.7-28.0-31.0-16.7-62.8-14.2-39.8-8.3-47.8-7.1-33.4-48.6-32.5-16.1-29.3-41.1-45.3-56.6-30.4-16.9-14.6-9.7-11.9-17.9-3.9-5.8-5.5-7.4

Operating Income Loss

us-gaap:OperatingIncomeLoss

us-gaap:OperatingIncomeLoss


Operating
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-109.392-110.721-103.05-77.709-133.631-109.638-98.74-110.97-120.687-100.295-98.634973-86.739-24.03469-50.656-54.437-32.145-32.901-38.325-9.484-29.3640.419-43.46943-37.48880-22.916-36.402-35.894-6.525-32.605-45.404-43.381-32.9-26.988-37.932-34.468-21.338-34.264-33.867-20.539-6.2251.867-3.358
Percentage of OperatingIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-462.6-471.9-343.1-159.1-264.2-323.8-337.9-476.0-427.6-251.8-355.389.5-228.2-25.245.4-146.5-220.1-85.8-90.5-117.0-16.1-74.60.7-191.839.6-191.760.5-80.4-184.1-115.2-10.7-96.3-197.4-205.1-178.7-114.0-211.3-218.4-78.8-197.7-299.7-45.3-16.44.4-10.1

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

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax


Other
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-60000.0135000.0349000.0-96000.0-751000.0-165000.0-360000.0108000.035000.0
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.30.61.2-0.2-1.5-0.5-1.20.50.1

Other Comprehensive Income Loss Net Of Tax

us-gaap:OtherComprehensiveIncomeLossNetOfTax

us-gaap:OtherComprehensiveIncomeLossNetOfTax


Other
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value-826000.0-1215000.0-1795000.07592000.0-5872000.0-1093000.0-398000.01928000.03600000.0-1376000.0-1206000.0-685000.0
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-3.5-5.2-6.015.5-11.6-3.2-1.48.312.8-5.0-0.1-1.8

Other Nonoperating Income Expense

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:OtherNonoperatingIncomeExpense


Other
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1.4121.8292.915.1918.352101111121211121.5710.9060.6580.7210.3320.4580.8750.3250.8980.2460.2110.678-0.007-0.0360.1780.7390.262-0.0060.4270.070.1560.0970.66-0.445-0.717-0.0160.1340.3910.2490.1630.024
Percentage of OtherNonoperatingIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.07.89.710.616.530.639.351.444.230.342.71.14.12.62.71.90.91.41.50.81.51.10.23.5-0.0-0.10.92.40.4-0.01.90.30.80.43.7-2.8-2.6-0.11.20.90.70.40.1

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-122.967-117.203-108.586-80.0-138.651-113.438-98.808-109.909-118.512-98.212-96.143971-95.792
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-520.0-499.5-361.6-163.8-274.2-335.0-338.2-471.4-419.9-246.6-346.389.3-252.0

Research And Development Expense

us-gaap:ResearchAndDevelopmentExpense

us-gaap:ResearchAndDevelopmentExpense


Research
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value95102100961081109910611810810288998165606150515249474345473834363848435245463433353331323031272523
Percentage of ResearchAndDevelopmentExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax404.3437.8334.7197.4215.5325.9339.0457.6419.8273.4370.68.1261.585.343.0174.2246.9134.1143.0159.883.7119.772.1200.443.2196.925.7128.7193.9154.972.1154.2198.3219.3184.7140.2195.5211.0114.6186.2267.169.473.160.170.1

Revenue From Contract With Customer Excluding Assessed Tax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax


Revenue
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value23233048503329232839271087389515234243736325839592210819132281931603323211823171527171145374233
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService

nktr:LicenseCollaborationAndOtherRevenue


Revenue
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-06-30
Value0.0540.4281.63126277.1153.1212.5354.204144.8751064134.824
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.21.85.453.854.421.010.710.914.936.217.697.836.113.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.21.85.453.854.421.010.710.914.936.217.697.836.113.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax nktr:LicenseCollaborationAndOtherRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

nktr:NonCashRoyaltyRevenueRelatedToSaleOfFutureRoyalties


Revenue
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-06-30
Value1820107.6849.8958.718109.0918.238.9718.3729.0456.926.638
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax79.587.634.715.719.625.735.139.029.222.530.20.818.219.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax79.587.634.715.719.625.735.139.029.222.530.20.818.219.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax nktr:NonCashRoyaltyRevenueRelatedToSaleOfFutureRoyalties100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Product


Revenue
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value4.7952.8845.6915.4853.4445.8155.5584.3464.3984.364.2565.8636.2957.7914.448154.756
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax20.312.318.911.26.817.219.018.615.610.915.30.516.68.22.945.419.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax20.312.318.911.26.817.219.018.615.610.915.30.516.68.22.945.419.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Product100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Royalty


Revenue
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-06-30
Value-0.412129.4039.71912107.3431112108.563117.434
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-1.840.919.219.236.135.231.540.430.337.00.829.121.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-1.840.919.219.236.135.231.540.430.337.00.829.121.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Royalty100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Revenues

us-gaap:Revenues

us-gaap:Revenues


Revenues
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value23233048503329232839271087389515234243736325839592210819132281931603323211823171527171145374233
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Assets

us-gaap:Assets

us-gaap:Assets


Assets
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302018-03-312017-12-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value14561538150815941887197720882099216621502313496508475528568425463491502449499441476478487434383447497541668694606648670704521
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Liabilities

us-gaap:Liabilities

us-gaap:Liabilities


Liabilities
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302018-03-312017-12-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value462461337338591571599542532432452438421472483480492502492495410421405429513496524433450450446536532408417419423430
Percentage of Liabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets31.730.022.421.231.328.928.725.824.620.119.688.382.799.391.584.5116.0108.5100.198.791.384.591.890.1107.4102.0120.7113.1100.690.682.480.276.667.464.462.560.182.6

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:LiabilitiesAndStockholdersEquity


Liabilities
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302018-03-312017-12-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value14561538150815941887197720882099216621502313496508475528568425463491502449499441476478487434383447497541668694606648670704521
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-31
Value9941077117012561296140514881557163317171790186058873.3864488-67.853-39.251-0.2756.42939773647-35.36-9.809-89.903-50.25-2.62479513216219723025128190102190
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets68.370.077.678.868.771.171.374.275.479.90.080.411.717.30.78.515.5-16.0-8.5-0.11.38.715.58.29.9-7.4-2.0-20.7-13.1-0.69.417.619.823.432.635.637.539.917.40.00.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value-3.121-2.295-1.080.715-6.877-1.005-1.186-0.788-2.716-6.316-5.378-4.002-2.796-2.111-2.363-2.17-1.567-1.181-0.357-1.1030.9681.0251.439
Percentage of StockholdersEquity-0.3-0.2-0.10.1-0.5-0.1-0.1-0.1-0.2-0.4-0.3-0.2-4.8-2.4-2.7-33.8-4.31.3-0.8-0.61.11.00.8
Percentage of Assets-0.2-0.1-0.10.0-0.4-0.1-0.1-0.0-0.1-0.30.0-0.2-0.6-0.4-0.4-0.4-0.4-0.3-0.1-0.20.20.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value34293388336333383306327132413210317831473121309422622207211118761824164316171597135413271312
Percentage of StockholdersEquity344.9314.6287.3265.8255.1232.8217.7206.2194.6183.3174.4166.33881.42513.92396.029181.45020.9-1828.33440.7807.61493.71297.2690.4
Percentage of Assets235.5220.2223.0209.3175.1165.4155.2152.9146.7146.40.0133.8455.4433.9371.2373.7413.1378.3325.0263.4259.80.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value0.0180.0180.0180.0180.0170.0170.0170.0170.0170.0170.0170.0170.0160.0150.0150.0130.0130.0110.0110.0110.0090.0090.009
Percentage of StockholdersEquity0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.20.0-0.00.00.00.00.00.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value-2432.125-2309.158-2191.955-2083.369-2003.369-1864.718-1751.28-1652.472-1542.563-1424.051-1325.839-1229.696-2201.156-2117.941-2021.01-1867.486-1786.309-1732.393-1570.38-1398.525-1264.547-1226.609-1124.09
Percentage of StockholdersEquity-244.6-214.3-187.2-165.8-154.5-132.7-117.6-106.1-94.4-82.9-74.1-66.1-3776.7-2411.5-2293.3-29047.8-4916.61927.0-3340.0-707.0-1394.8-1198.2-591.1
Percentage of Assets-167.0-150.1-145.3-130.6-106.1-94.3-83.9-78.7-71.2-66.20.0-53.2-443.1-416.2-355.3-372.0-404.5-398.7-315.5-230.6-242.60.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Assets Current

us-gaap:AssetsCurrent

us-gaap:AssetsCurrent


Assets
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302018-03-312017-12-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value10991138104311511429142115781596149014371905336326288380425282318344350286347288324298304257207267314346468420276297389539353
Percentage of AssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets75.574.069.272.275.771.975.676.168.866.982.467.664.260.672.174.966.568.770.169.763.769.665.368.062.462.659.354.359.663.264.170.160.545.645.958.076.667.9

Cash

us-gaap:Cash

us-gaap:Cash


Cash
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value7.5596.2856.3686.0715.9945.829282.2946.3895.812
Percentage of Cash100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.50.40.40.40.30.31.30.10.30.3

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashAndCashEquivalentsAtCarryingValue


Cash
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302018-03-312017-12-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-31
Value1501985558227968185106194911344.76216235963557255182012912323032396541282510136148154311221712232049155
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets10.312.93.73.612.04.93.94.14.99.139.47.00.93.44.410.514.912.014.711.14.20.025.92.86.76.46.79.017.10.06.45.11.920.421.42.56.61.73.23.40.00.00.00.00.0

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


Cash
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312016-12-31
Value15019855582279681851061942229114.76259
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets10.312.93.73.612.04.93.94.14.99.10.039.40.910.5

Accounts Receivable Net Current

us-gaap:AccountsReceivableNetCurrent

us-gaap:AccountsReceivableNetCurrent


Accounts
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302018-03-312017-12-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value2938424742364137424335155.0144.1141.56515142739192.9662.8853.607463.0471.8552.2294.5573.6475.8053.91111104.938128.462.1625
Percentage of AccountsReceivableNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.02.52.83.02.21.92.01.82.02.01.53.11.00.90.32.83.46.08.14.00.70.60.89.70.60.40.51.20.81.20.71.71.60.82.01.30.34.8

us-gaap:AccountsReceivableNetCurrent dei:LegalEntity, us-gaap:TypeOfArrangement

nktr:BristolMyersSquibbCompany, nktr:BMSCollaborationAgreement


Accounts
Period End2021-03-312020-12-312020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-30
Value263831242724281921
Percentage of AccountsReceivableNetCurrent89.999.574.265.267.265.466.244.061.2
Percentage of Assets1.82.51.71.21.31.21.30.90.9
Percentage of Assets nktr:BristolMyersSquibbCompany nktr:BMSCollaborationAgreement0.00.00.00.00.00.00.00.00.0

us-gaap:AccountsReceivableNetCurrent us-gaap:CounterpartyName

nktr:BMSCollaborationAgreement


Accounts
Period End2021-03-312020-12-312020-06-302020-03-312019-12-31
Value2638333124
Percentage of AccountsReceivableNetCurrent89.999.571.874.265.2
Percentage of Assets1.82.52.11.71.2
Percentage of Assets nktr:BMSCollaborationAgreement0.00.00.00.00.0

nktr:BristolMyersSquibbCollaborationAgreement


Accounts
Period End2020-09-302019-12-31
Value2924
Percentage of AccountsReceivableNetCurrent69.765.2
Percentage of Assets2.01.2
Percentage of Assets nktr:BristolMyersSquibbCollaborationAgreement0.00.0

nktr:CollaborationPartner


Accounts
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value2.90.21313101227242819
Percentage of AccountsReceivableNetCurrent9.90.530.328.225.934.867.265.466.244.0
Percentage of Assets0.20.00.90.80.60.61.31.21.30.9
Percentage of Assets nktr:CollaborationPartner0.00.00.00.00.00.00.00.00.00.0

Inventory Net

us-gaap:InventoryNet

us-gaap:InventoryNet


Inventory
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302018-03-312017-12-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value16151212141213131111111010111311101011111012121114121315181816141412109.797117.266
Percentage of InventoryNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.21.00.90.80.80.60.70.60.50.50.52.12.12.32.52.02.52.22.32.32.32.52.92.53.02.63.13.94.13.73.12.22.02.11.61.51.71.4

Other Assets Current

us-gaap:OtherAssetsCurrent

us-gaap:OtherAssetsCurrent


Other
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302018-03-312017-12-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value151821371315151319213413147.4967.881104.0085.4275.5939.8145.2146.0928.8174.7084.6295.9725.1754.7598.813137.0039.34113177.5657.9326.8595.679
Percentage of OtherAssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.11.21.42.40.70.80.70.60.91.01.52.62.91.61.51.80.91.21.12.01.21.22.01.01.01.21.21.22.02.71.31.42.03.01.21.21.01.1

Construction In Progress Gross

us-gaap:ConstructionInProgressGross

us-gaap:ConstructionInProgressGross


Construction
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value4.74.5525.0881.43.4568.456166.2612.7651.752.557
Percentage of ConstructionInProgressGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.30.20.20.30.61.73.71.40.60.30.5

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment


Accumulated
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value1381271201151111029384726253
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets9.06.55.622.619.620.521.219.414.610.310.4

Property Plant And Equipment Net

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:PropertyPlantAndEquipmentNet


Property
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302018-03-312017-12-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value5859606162646465584845464764666565676971726970697172666570727373757881858789
Percentage of PropertyPlantAndEquipmentNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.03.94.03.83.33.33.13.12.72.31.99.39.313.612.611.515.414.614.214.216.113.915.914.514.915.015.417.015.714.513.511.010.913.012.612.712.417.2

us-gaap:PropertyPlantAndEquipmentNet us-gaap:StatementGeographical

country:IN


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312011-12-312010-12-31
Value5.15.35.95.85.66.06.77.71018
Percentage of PropertyPlantAndEquipmentNet8.58.212.112.28.58.49.511.513.920.4
Percentage of Assets0.30.30.31.11.01.21.51.81.83.5
Percentage of Assets country:IN0.00.00.00.00.00.00.00.00.00.0

country:US


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value5459424148546357626771
Percentage of PropertyPlantAndEquipmentNet91.391.887.887.974.476.090.585.686.586.279.6
Percentage of Assets3.53.02.08.28.610.814.413.212.611.213.7
Percentage of Assets country:US0.00.00.00.00.00.00.00.00.00.00.0

Deferred Tax Assets Liabilities Net

us-gaap:DeferredTaxAssetsLiabilitiesNet

us-gaap:DeferredTaxAssetsLiabilitiesNet


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value226000.0196000.0170000.0284000.0300000.0190000.0176000.0150000.095000.062000.0159000.0
Percentage of DeferredTaxAssetsLiabilitiesNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.10.10.00.00.00.00.00.0

Operating Lease Right Of Use Asset

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OperatingLeaseRightOfUseAsset


Operating
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value12412612813113313413482830.0
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets8.68.28.58.27.16.86.53.93.90.0

Other Assets Noncurrent

us-gaap:OtherAssetsNoncurrent

us-gaap:OtherAssetsNoncurrent


Other
Period End2021-03-312020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302018-03-312017-12-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value1.4351.4611.421.4131.012.3852.42.3674.2443.3620.7890.9941.1040.8650.8170.5190.5040.6814.173136.1516.5527.0067.3437.7748.178.519.2529.4439.7285.6935.3450.9990.8450.9360.9760.972
Percentage of OtherAssetsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.10.10.10.10.10.10.10.10.20.10.20.20.20.20.10.10.10.10.83.11.21.51.51.51.61.92.22.11.91.80.90.80.20.10.10.10.2

Accounts Payable Current

us-gaap:AccountsPayableCurrent

us-gaap:AccountsPayableCurrent


Accounts
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302018-03-312017-12-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value222215192119219.346115.85410114.7826.2416.9512.8167.1182.3282.3492.3632.2795.0242.7035.4287.4373.0649.1153.7234.2182.8632.6243.1181.7613.0192.1753.2433.4817.194
Percentage of AccountsPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.51.41.01.21.21.01.10.40.50.30.52.30.91.31.30.51.70.50.50.50.51.00.61.11.60.62.11.00.90.60.50.50.30.50.30.50.51.4

Contract With Customer Liability Current

us-gaap:ContractWithCustomerLiabilityCurrent

us-gaap:ContractWithCustomerLiabilityCurrent


Contract
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302017-12-31
Value0.0910.5071.7573.0075.5178.3929.89211131718
Percentage of ContractWithCustomerLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.10.20.30.40.50.50.60.83.7

Liabilities Current

us-gaap:LiabilitiesCurrent

us-gaap:LiabilitiesCurrent


Liabilities
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302018-03-312017-12-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value12311512612337735312511399829680567278727679656120875648084799880837869276270275279615864
Percentage of LiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.57.58.47.820.017.96.05.44.63.84.216.211.015.314.912.718.017.113.412.246.315.114.516.917.616.322.621.118.615.812.841.439.045.443.19.18.412.3

Operating Lease Liability Current

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OperatingLeaseLiabilityCurrent


Operating
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value1513151515129.3183.7490.0
Percentage of OperatingLeaseLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets1.10.91.00.90.80.60.40.20.0

Other Accrued Liabilities Current

us-gaap:OtherAccruedLiabilitiesCurrent

us-gaap:OtherAccruedLiabilitiesCurrent


Other
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302018-03-312017-12-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value149.5859.631111111113149.0871410106.6836.5764.7116.7616.9196.2844.156166.418
Percentage of OtherAccruedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.00.60.60.70.60.60.50.70.70.40.62.12.01.41.20.81.61.51.30.83.71.5

Other Liabilities Noncurrent

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:OtherLiabilitiesNoncurrent


Other
Period End2021-03-312020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302018-03-312017-12-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value4.136.5163.2912.2390.7680.6430.6430.6669.997.0516.5135.9923.5924.1165.05.5156.026.5369.74101714151717199.2179.0158.4071010107.1596.4625.846.2055.571
Percentage of OtherLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.30.40.20.10.00.00.00.00.50.31.31.20.80.80.91.31.31.31.92.43.43.33.23.73.74.42.42.01.72.01.51.61.21.00.90.91.1

us-gaap:OtherLiabilitiesNoncurrent dei:LegalEntity, us-gaap:TypeOfArrangement

nktr:BristolMyersSquibbCompany, nktr:BMSCollaborationAgreement


Other
Period End2020-12-31
Value4.0
Percentage of OtherLiabilitiesNoncurrent61.4
Percentage of Assets0.3
Percentage of Assets nktr:BristolMyersSquibbCompany nktr:BMSCollaborationAgreement0.0

Operating Lease Liability Noncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent


Operating
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value134136139141142142145940.0
Percentage of OperatingLeaseLiabilityNoncurrent100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets9.28.99.28.97.57.26.94.50.0

Lessee Operating Lease Liability Payments Due Year Two

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo


Lessee
Period End2020-12-31
Value20
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearTwo100.0
Percentage of Assets1.3

Lessee Operating Lease Liability Payments Due Year Three

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree


Lessee
Period End2020-12-31
Value20
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearThree100.0
Percentage of Assets1.4

Lessee Operating Lease Liability Payments Due Year Four

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour


Lessee
Period End2020-12-31
Value21
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFour100.0
Percentage of Assets1.4

Lessee Operating Lease Liability Payments Due Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive


Lessee
Period End2020-12-31
Value22
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFive100.0
Percentage of Assets1.4

Lessee Operating Lease Liability Payments Due After Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive


Lessee
Period End2020-12-31
Value97
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive100.0
Percentage of Assets6.4

Operating Lease Liability

us-gaap:OperatingLeaseLiability

us-gaap:OperatingLeaseLiability


Operating
Period End2020-12-312019-12-312019-09-302019-06-302019-03-312019-01-01
Value150155154989696
Percentage of OperatingLeaseLiability100.0100.0100.0100.0100.0100.0
Percentage of Assets9.87.97.44.74.50.0

Lessee Operating Lease Liability Payments Due

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue


Lessee
Period End2020-12-31
Value200
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue100.0
Percentage of Assets13.0

Lessee Operating Lease Liability Undiscounted Excess Amount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount


Lessee
Period End2020-12-31
Value46
Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount100.0
Percentage of Assets3.0

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-31
Value9941077117012561296140514881557163317171790186058873.3864488-67.853-39.251-0.2756.42939773647-35.36-9.809-89.903-50.25-2.62479513216219723025128190102190
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets68.370.077.678.868.771.171.374.275.479.90.080.411.717.30.78.515.5-16.0-8.5-0.11.38.715.58.29.9-7.4-2.0-20.7-13.1-0.69.417.619.823.432.635.637.539.917.40.00.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value-3.121-2.295-1.080.715-6.877-1.005-1.186-0.788-2.716-6.316-5.378-4.002-2.796-2.111-2.363-2.17-1.567-1.181-0.357-1.1030.9681.0251.439
Percentage of StockholdersEquity-0.3-0.2-0.10.1-0.5-0.1-0.1-0.1-0.2-0.4-0.3-0.2-4.8-2.4-2.7-33.8-4.31.3-0.8-0.61.11.00.8
Percentage of Assets-0.2-0.1-0.10.0-0.4-0.1-0.1-0.0-0.1-0.30.0-0.2-0.6-0.4-0.4-0.4-0.4-0.3-0.1-0.20.20.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value34293388336333383306327132413210317831473121309422622207211118761824164316171597135413271312
Percentage of StockholdersEquity344.9314.6287.3265.8255.1232.8217.7206.2194.6183.3174.4166.33881.42513.92396.029181.45020.9-1828.33440.7807.61493.71297.2690.4
Percentage of Assets235.5220.2223.0209.3175.1165.4155.2152.9146.7146.40.0133.8455.4433.9371.2373.7413.1378.3325.0263.4259.80.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value0.0180.0180.0180.0180.0170.0170.0170.0170.0170.0170.0170.0170.0160.0150.0150.0130.0130.0110.0110.0110.0090.0090.009
Percentage of StockholdersEquity0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.20.0-0.00.00.00.00.00.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value-2432.125-2309.158-2191.955-2083.369-2003.369-1864.718-1751.28-1652.472-1542.563-1424.051-1325.839-1229.696-2201.156-2117.941-2021.01-1867.486-1786.309-1732.393-1570.38-1398.525-1264.547-1226.609-1124.09
Percentage of StockholdersEquity-244.6-214.3-187.2-165.8-154.5-132.7-117.6-106.1-94.4-82.9-74.1-66.1-3776.7-2411.5-2293.3-29047.8-4916.61927.0-3340.0-707.0-1394.8-1198.2-591.1
Percentage of Assets-167.0-150.1-145.3-130.6-106.1-94.3-83.9-78.7-71.2-66.20.0-53.2-443.1-416.2-355.3-372.0-404.5-398.7-315.5-230.6-242.60.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302018-03-312017-12-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value18000.018000.018000.018000.017000.017000.017000.017000.017000.017000.017000.016000.015000.015000.015000.015000.013000.013000.013000.013000.013000.013000.013000.012000.012000.012000.011000.011000.011000.011000.011000.011000.011000.011000.011000.011000.011000.09000.0
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Additional Paid In Capital Common Stock

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:AdditionalPaidInCapitalCommonStock


Additional
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302018-03-312017-12-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value34293388336333383306327132413210317831473094226222072150213121111912189818881876185418311824178917761769164316361623161716121606160215971592158715801354
Percentage of AdditionalPaidInCapitalCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets235.5220.2223.0209.3175.1165.4155.2152.9146.7146.4133.8455.4433.9451.8403.4371.2450.0409.9383.9373.7412.7366.8413.1375.1371.6363.4378.3427.2362.4325.0297.8240.4230.6263.4245.8236.6224.4259.8

Retained Earnings Accumulated Deficit

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:RetainedEarningsAccumulatedDeficit


Retained
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302018-03-312017-12-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value-2432100000.0-2309200000.0-2192000000.0-2083400000.0-2003400000.0-1864700000.0-1751300000.0-1652500000.0-1542600000.0-1424100000.0-1229700000.0-2201200000.0-2117900000.0-2145000000.0-2085100000.0-2021000000.0-1978800000.0-1935600000.0-1887000000.0-1867500000.0-1813300000.0-1752500000.0-1786300000.0-1740600000.0-1811200000.0-1778600000.0-1732400000.0-1684700000.0-1625400000.0-1570400000.0-1517500000.0-1473900000.0-1439600000.0-1398500000.0-1361000000.0-1337000000.0-1300600000.0-1264500000.0
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-167.0-150.1-145.3-130.6-106.1-94.3-83.9-78.7-71.2-66.2-53.2-443.1-416.2-450.8-394.5-355.3-465.5-418.0-383.6-372.0-403.6-351.1-404.5-365.0-378.8-365.2-398.7-439.8-362.9-315.5-280.3-220.5-207.2-230.6-210.0-199.3-184.6-242.6

Accumulated Other Comprehensive Income Loss Net Of Tax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax


Accumulated
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302018-03-312017-12-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value-3121000.0-2295000.0-1080000.0715000.0-6877000.0-1005000.0-1186000.0-788000.0-2716000.0-6316000.0-4002000.0-2796000.0-2111000.0-1662000.0-1849000.0-2363000.0-1962000.0-2019000.0-1835000.0-2170000.0-1821000.0-1276000.0-1567000.0-1178000.0-887000.0-940000.0-1181000.0-1689000.0-395000.0-357000.0155000.0-620000.0-43000.0-1103000.0-987000.0766000.0818000.0968000.0
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-0.2-0.1-0.10.0-0.4-0.1-0.1-0.0-0.1-0.3-0.2-0.6-0.4-0.3-0.3-0.4-0.5-0.4-0.4-0.4-0.4-0.3-0.4-0.2-0.2-0.2-0.3-0.4-0.1-0.10.0-0.1-0.0-0.2-0.20.10.10.2

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

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue


Adjustments
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value23232424242425232019
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Adjustments
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value23232424242425232019
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-77.085-98.634-52.675-83.903-78.075-125.223-68.641-53.922-80.895-117.55-71.412959-52.466-38.111-47.376-27.171-20.591-34.618-42.214-21.87-34.788-14.8720-22.162-19.953-34.163
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-326.0-420.4-175.4-171.8-154.4-369.8-234.9-231.3-286.6-295.2-257.288.2-138.0-165.7-224.0-147.6-86.9-192.9-267.5-80.8-200.7-131.645.0-58.4-46.9-102.8

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1092481571971355825-12.13887-621.271-894.415484362-5.3917.75948145222-201.885-17.16311211.021
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax44.2395.3162.0321.5391.1400.1199.4108.5-43.0219.8-2237.8-82.2126.8189.9294.3-29.332.8269.891.2194.8131.6-1786.8-37.930.350.23.1

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value171481.531-241.957114.9066.2497.3064.8942.6683.85981134-2.4740.21-93.1840.273119-0.3060.0261.1162211.5120.6061.04.417
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax75.5635.05.1-495.321.914.521.431.317.36.713.974.690.4-10.81.0-506.11.2665.8-1.90.16.41960.33.31.62.313.3

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

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect


Cash
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-48.791143-2.363-168.82913015-4.2-21.328-88.153-27.356-688.86487630
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-206.3610.0-7.9-345.6258.444.7-14.4-91.5-312.4-68.7-2481.380.679.0

Increase Decrease In Accounts Payable

us-gaap:IncreaseDecreaseInAccountsPayable

us-gaap:IncreaseDecreaseInAccountsPayable


Increase
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.7795.719-3.762-2.2622.687-3.14212-1.6765.156-1.64-3.18-0.7016.492-0.8964.117-4.2814.7820.051-0.0340.113-0.515-2.2512.241-2.689-1.8524.308-6.1265.502-1.9341.2761.3550.279-0.4811.37-1.290.816-1.051-0.254-2.8952.519-0.4280.4351.748
Percentage of IncreaseDecreaseInAccountsPayable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Accounts Receivable

us-gaap:IncreaseDecreaseInAccountsReceivable

us-gaap:IncreaseDecreaseInAccountsReceivable


Increase
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-9.733-8.036-4.325.2145.229-4.4033.906-5.595-0.3199.326-3.37819-0.1512.549-14.1131.429-13.528-11.91916-0.7140.795-0.722-42.467431.192-0.374-2.328-1.4842.394-2.158-0.16-5.3960.5585.865-7.9764.4546.3-22.94219-3.8931.7372.908
Percentage of IncreaseDecreaseInAccountsReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Inventories

us-gaap:IncreaseDecreaseInInventories

us-gaap:IncreaseDecreaseInInventories


Increase
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1516000.02400000.0308000.0-1736000.01655000.0-1055000.0532000.01410000.0397000.0-1915000.01412000.01209000.0-51000.0-2008000.01907000.0355000.0492000.0-988000.0-96000.0994000.0228000.0-2387000.0-441000.01257000.0-2416000.01239000.0-580000.0-1624000.0-5403000.02098000.0112000.09711000.0-6157000.0607000.01452000.02002000.0857000.0-1915000.04446000.0-4194000.01683000.01074000.02232000.0
Percentage of IncreaseDecreaseInInventories100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-77.085-98.634-52.675-83.903-78.075-125.223-68.641-53.922-80.895-117.55-71.412959-52.466-38.111-47.376-27.171-20.591-34.618-42.214-21.87-34.788-14.8720-22.162-19.953-34.163
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-326.0-420.4-175.4-171.8-154.4-369.8-234.9-231.3-286.6-295.2-257.288.2-138.0-165.7-224.0-147.6-86.9-192.9-267.5-80.8-200.7-131.645.0-58.4-46.9-102.8

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-122.967-117.203-108.586-80.0-138.651-112.164-98.808-109.909-118.512-98.212-96.143971-95.792-33.82660-59.871-63.866-42.199-43.224-48.603-19.498-54.137-8.203-52.65733-45.68370-32.637-46.201-47.659-16.543-42.748-55.063-52.926-43.547-34.285-41.097-37.495-24.068-36.381-36.034-22.58-8.711-0.517-6.13
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-520.0-499.5-361.6-163.8-274.2-331.2-338.2-471.4-419.9-246.6-346.389.3-252.0-35.439.8-173.1-258.3-112.7-119.0-148.3-33.1-137.5-13.7-232.431.1-233.753.1-114.5-233.7-153.0-27.2-126.2-239.4-250.3-236.5-144.8-229.0-237.6-88.9-209.9-318.9-49.8-23.0-1.2-18.4

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-122.967-117.203-108.586-80.0-138.651-113.438-98.808-109.909-118.512-98.212-96.143971-95.792
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-520.0-499.5-361.6-163.8-274.2-335.0-338.2-471.4-419.9-246.6-346.389.3-252.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1092481571971355825-12.13887-621.271-894.415484362-5.3917.75948145222-201.885-17.16311211.021
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax44.2395.3162.0321.5391.1400.1199.4108.5-43.0219.8-2237.8-82.2126.8189.9294.3-29.332.8269.891.2194.8131.6-1786.8-37.930.350.23.1

Payments To Acquire Property Plant And Equipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment


Payments
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value2.8761.7541.912.6940.93.6715.323115.6488.6871.8222.7450.9852.2554.0892.6510.5071.5551.6792.4734.1383.5251.0593.8860.8980.6684.5242.7090.5880.4780.3164.8392.5721.6561.5161.4281.4493.083.7659.297134.8233.973
Percentage of PaymentsToAcquirePropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value171481.531-241.957114.9066.2497.3064.8942.6683.85981134-2.4740.21-93.1840.273119-0.3060.0261.1162211.5120.6061.04.417
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax75.5635.05.1-495.321.914.521.431.317.36.713.974.690.4-10.81.0-506.11.2665.8-1.90.16.41960.33.31.62.313.3

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

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber


Share
Period End2020-12-312019-12-31
Value1314
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber100.0100.0

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

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice


Share
Period End2020-12-312019-12-31
Value24.325.23
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice100.0100.0

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

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod

us-gaap:RestrictedStockUnitsRSU


Share
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-06-302017-03-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-312014-09-30
Value367000.03473000.0693000.021.6518.91316000.0262750.0132820.0152000.0396240.010000.00056000.02000.001186000.0120000.000
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.00.0100.0100.00.00.0

Deferred Tax Liabilities

us-gaap:DeferredTaxLiabilities

us-gaap:DeferredTaxLiabilities


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312011-12-312010-12-31
Value31330.00.00.00.00.00.00.0750.0
Percentage of DeferredTaxLiabilities100.0100.00.00.00.00.00.00.0100.00.0

Deferred Tax Assets Net

us-gaap:DeferredTaxAssetsNet

us-gaap:DeferredTaxAssetsNet


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value31330.170.2840.30.190.1760.150.0950.1370.159
Percentage of DeferredTaxAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Unrecognized Tax Benefits

us-gaap:UnrecognizedTaxBenefits

us-gaap:UnrecognizedTaxBenefits


Unrecognized
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value78772720181727161413131311
Percentage of UnrecognizedTaxBenefits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Assets Valuation Allowance

us-gaap:DeferredTaxAssetsValuationAllowance

us-gaap:DeferredTaxAssetsValuationAllowance


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value670575460496665612595586534503450
Percentage of DeferredTaxAssetsValuationAllowance100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

nktr:CollaborativeArrangementAdditionalIndicationPayment us-gaap:CounterpartyName

nktr:CollaborativeArrangementAdditionalIndicationPayment

nktr:SFJPharmaceuticals


Collaborative
Period End2021-02-12
Value37
Percentage of CollaborativeArrangementAdditionalIndicationPayment100.0

nktr:CollaborativeArrangementAdditionalIndicationPayment us-gaap:CounterpartyName, us-gaap:SubsequentEventType

nktr:SFJPharmaceuticals, us-gaap:SubsequentEvent


Collaborative
Period End2021-02-12
Value37
Percentage of CollaborativeArrangementAdditionalIndicationPayment100.0

nktr:CollaborativeArrangementCommittedFunding us-gaap:CounterpartyName

nktr:CollaborativeArrangementCommittedFunding

nktr:SFJPharmaceuticals


Collaborative
Period End2021-02-12
Value150
Percentage of CollaborativeArrangementCommittedFunding100.0

nktr:CollaborativeArrangementCommittedFunding us-gaap:CounterpartyName, us-gaap:SubsequentEventType

nktr:SFJPharmaceuticals, us-gaap:SubsequentEvent


Collaborative
Period End2021-02-12
Value150
Percentage of CollaborativeArrangementCommittedFunding100.0

nktr:CollaborativeArrangementSuccessBasedPaymentsFirstIndication us-gaap:CounterpartyName

nktr:CollaborativeArrangementSuccessBasedPaymentsFirstIndication

nktr:SFJPharmaceuticals


Collaborative
Period End2021-02-12
Value450
Percentage of CollaborativeArrangementSuccessBasedPaymentsFirstIndication100.0

nktr:CollaborativeArrangementSuccessBasedPaymentsFirstIndication us-gaap:CounterpartyName, us-gaap:SubsequentEventType

nktr:SFJPharmaceuticals, us-gaap:SubsequentEvent


Collaborative
Period End2021-02-12
Value450
Percentage of CollaborativeArrangementSuccessBasedPaymentsFirstIndication100.0

nktr:CollaborativeArrangementSuccessBasedPaymentsFirstPayment us-gaap:CounterpartyName

nktr:CollaborativeArrangementSuccessBasedPaymentsFirstPayment

nktr:SFJPharmaceuticals


Collaborative
Period End2021-02-12
Value30
Percentage of CollaborativeArrangementSuccessBasedPaymentsFirstPayment100.0

nktr:CollaborativeArrangementSuccessBasedPaymentsSecondIndication us-gaap:CounterpartyName

nktr:CollaborativeArrangementSuccessBasedPaymentsSecondIndication

nktr:SFJPharmaceuticals


Collaborative
Period End2021-02-12
Value150
Percentage of CollaborativeArrangementSuccessBasedPaymentsSecondIndication100.0

nktr:CollaborativeArrangementSuccessBasedPaymentsSecondIndication us-gaap:CounterpartyName, us-gaap:SubsequentEventType

nktr:SFJPharmaceuticals, us-gaap:SubsequentEvent


Collaborative
Period End2021-02-12
Value150
Percentage of CollaborativeArrangementSuccessBasedPaymentsSecondIndication100.0

nktr:CollaborativeArrangementsMaximumAggregateAdditionalCashPaymentsReceivableUponAchievementOfDevelopmentAndRegulatoryMilestones us-gaap:ConsolidatedEntities, us-gaap:ProductOrService, us-gaap:TypeOfArrangement

nktr:CollaborativeArrangementsMaximumAggregateAdditionalCashPaymentsReceivableUponAchievementOfDevelopmentAndRegulatoryMilestones

srt:ParentCompany, nktr:Nektar214, nktr:BristolMyersSquibbCollaborationAgreement


Collaborative
Period End2021-03-312020-12-31
Value14550.0
Percentage of CollaborativeArrangementsMaximumAggregateAdditionalCashPaymentsReceivableUponAchievementOfDevelopmentAndRegulatoryMilestones100.00.0

nktr:EstimatedAnnualInterestRateOverLifeOfRoyaltyLiability

nktr:EstimatedAnnualInterestRateOverLifeOfRoyaltyLiability


Estimated
Period End2020-09-302019-12-312018-12-312018-06-302018-03-312017-12-31
Value20.20.1950.18700.1760.176
Percentage of EstimatedAnnualInterestRateOverLifeOfRoyaltyLiability100.0100.0100.00.0100.0100.0

nktr:EstimatedAnnualInterestRateOverLifeOfRoyaltyLiability us-gaap:TypeOfArrangement

nktr:PurchaseAndSaleAgreement2012


Estimated
Period End2021-03-312020-03-31
Value20.219.5
Percentage of EstimatedAnnualInterestRateOverLifeOfRoyaltyLiability0.00.0

nktr:PurchaseAndSaleAgreement2020


Estimated
Period End2021-03-31
Value16.0
Percentage of EstimatedAnnualInterestRateOverLifeOfRoyaltyLiability0.0

nktr:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityResearchAndDevelopmentExpense us-gaap:FairValueByLiabilityClass

nktr:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityResearchAndDevelopmentExpense

us-gaap:DerivativeFinancialInstrumentsLiabilities


Fair
Period End2021-03-31
Value2248000.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityResearchAndDevelopmentExpense100.0

nktr:ImpairmentOfEquipmentAndOtherCostsForTerminatedProgram

nktr:ImpairmentOfEquipmentAndOtherCostsForTerminatedProgram


Impairment
Period End2020-09-302020-06-302020-03-312019-06-302019-03-31
Value0.00.0450.00.0
Percentage of ImpairmentOfEquipmentAndOtherCostsForTerminatedProgram0.00.0100.00.00.0

nktr:ImpairmentOfEquipmentFromTerminatedProgram

nktr:ImpairmentOfEquipmentFromTerminatedProgram


Impairment
Period End2020-12-312020-09-302020-06-302020-03-312019-06-302019-03-31
Value0.00.00.0200.00.0
Percentage of ImpairmentOfEquipmentFromTerminatedProgram0.00.00.0100.00.00.0

nktr:IncreaseDecreaseInOperatingLeaseRightOfUseAssetsNetOfOperatingLeaseLiabilities

nktr:IncreaseDecreaseInOperatingLeaseRightOfUseAssetsNetOfOperatingLeaseLiabilities


Increase
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-1541000.01573000.0-71000.0-1305000.0-2940000.0-1540000.0-3135000.0-7247000.0-1168000.0
Percentage of IncreaseDecreaseInOperatingLeaseRightOfUseAssetsNetOfOperatingLeaseLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0

nktr:LicenseCollaborationOtherRevenue

nktr:LicenseCollaborationOtherRevenue


License
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.0540.4281.63126277.1153.1212.5354.204144.8751064134.8246.0929.5538.3738.273416466.208966.867120178.0811341196.4765.9376.132107.8276.614166.3236.50632303129
Percentage of LicenseCollaborationOtherRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

nktr:LicenseCollaborationOtherRevenue dei:LegalEntity

nktr:OtherPartner


License
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value0.054-0.3350.3810.0250.0063.6680.3710.0270.434-10.1680.4040.1580.1121.3561.2692.4061.2851.2792.5471.291.2471.2781.3591.4531.217102.5450.9934.7261.7760.9751.2391.2181.8761.554-2.321122.1952.4040.2621.8061.729
Percentage of LicenseCollaborationOtherRevenue100.0-78.323.40.10.051.611.91.110.3-70.58.30.00.828.120.825.215.315.57.58.02.720.61.421.21.057.731.57.311.49.215.120.919.918.319.9-35.172.234.737.00.85.95.5

nktr:LicenseCollaborationOtherRevenue dei:LegalEntity, us-gaap:TypeOfArrangement

nktr:AmgenInc, nktr:Neulasta


License
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value0.4171.251.251.251.251.251.251.251.251.251.251.251.251.251.251.251.251.251.251.251.251.251.251.251.251.251.2851.251.251.2851.251.25
Percentage of LicenseCollaborationOtherRevenue97.476.64.84.517.640.149.329.78.725.60.19.125.920.513.114.915.13.77.72.720.11.318.21.07.015.59.43.06.519.821.120.4

nktr:MinimumTransactionRoyaltiesPaymentsNeededToPayTheDifferenceBetweenThresholds us-gaap:TypeOfArrangement

nktr:MinimumTransactionRoyaltiesPaymentsNeededToPayTheDifferenceBetweenThresholds

nktr:PurchaseAndSaleAgreement2020


Minimum
Period End2020-12-16
Value208
Percentage of MinimumTransactionRoyaltiesPaymentsNeededToPayTheDifferenceBetweenThresholds100.0

nktr:NonCashInterestExpenseRelatedToSaleOfRoyalties

nktr:NonCashInterestExpenseRelatedToSaleOfRoyalties


Non
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-30
Value138.1838.4256.6916.9687.1915.8135.9756.0656.3884.8144.9755.0194.5124.5524.7834.9024.9825.0455.1915.2265.1525.055.1635.2035.1345.3875.6655.6165.485
Percentage of NonCashInterestExpenseRelatedToSaleOfRoyalties100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

nktr:NonCashRoyaltyRevenueRelatedToSaleOfFutureRoyalties

nktr:NonCashRoyaltyRevenueRelatedToSaleOfFutureRoyalties


Non
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value1820107.6849.8958.718109.0918.238.9718.3729.0456.926.6386.6637.8177.6928.1156.5357.3066.054.743.9625.1846.1434.8375.7739.3114.5233.8284.3933.8963.427
Percentage of NonCashRoyaltyRevenueRelatedToSaleOfFutureRoyalties100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

nktr:NonCashRoyaltyRevenueRelatedToSaleOfFutureRoyalties us-gaap:TypeOfArrangement

nktr:PurchaseAndSaleAgreement2020


Non
Period End2020-12-31
Value10
Percentage of NonCashRoyaltyRevenueRelatedToSaleOfFutureRoyalties51.7

nktr:PaymentOfTransactionRelatedToPurchaseAndSaleAgreementIfThresholdIsAchieved us-gaap:TypeOfArrangement

nktr:PaymentOfTransactionRelatedToPurchaseAndSaleAgreementIfThresholdIsAchieved

nktr:PurchaseAndSaleAgreement2020


Payment
Period End2020-12-16
Value210
Percentage of PaymentOfTransactionRelatedToPurchaseAndSaleAgreementIfThresholdIsAchieved100.0

nktr:PaymentOfTransactionRelatedToPurchaseAndSaleAgreementIfThresholdIsNotAchieved us-gaap:TypeOfArrangement

nktr:PaymentOfTransactionRelatedToPurchaseAndSaleAgreementIfThresholdIsNotAchieved

nktr:PurchaseAndSaleAgreement2020


Payment
Period End2020-12-16
Value240
Percentage of PaymentOfTransactionRelatedToPurchaseAndSaleAgreementIfThresholdIsNotAchieved100.0

nktr:ProceedsFromSaleOfPotentialFutureRoyaltiesGross us-gaap:TypeOfArrangement

nktr:ProceedsFromSaleOfPotentialFutureRoyaltiesGross

nktr:PurchaseAndSaleAgreement2020


Proceeds
Period End2020-12-30
Value150
Percentage of ProceedsFromSaleOfPotentialFutureRoyaltiesGross100.0

nktr:ProspectiveInterestRatePercentage

nktr:ProspectiveInterestRatePercentage


Prospective
Period End2020-09-302019-12-312018-12-312017-12-31
Value48.00.380.290.21
Percentage of ProspectiveInterestRatePercentage100.0100.0100.0100.0

nktr:ProspectiveInterestRatePercentage us-gaap:TypeOfArrangement

nktr:PurchaseAndSaleAgreement2012


Prospective
Period End2021-03-312020-03-31
Value48.038.0
Percentage of ProspectiveInterestRatePercentage0.00.0

nktr:PurchaseAndSaleAgreement2020


Prospective
Period End2021-03-31
Value16.0
Percentage of ProspectiveInterestRatePercentage0.0

nktr:ReimbursementOfExpenses dei:LegalEntity, us-gaap:ProductOrService, us-gaap:IncomeStatementLocation

nktr:ReimbursementOfExpenses

nktr:BristolMyersSquibbCompany, nktr:Nektar214, us-gaap:ResearchAndDevelopmentExpense


Reimbursement
Period End2021-03-312020-12-312020-09-302020-03-312019-12-312019-09-30
Value263429302428
Percentage of ReimbursementOfExpenses100.0100.0100.0100.0100.0100.0

nktr:RoyaltyMonetizationProceeds us-gaap:TypeOfArrangement

nktr:RoyaltyMonetizationProceeds

nktr:PurchaseAndSaleAgreement2020


Royalty
Period End2020-12-31
Value150
Percentage of RoyaltyMonetizationProceeds100.0

nktr:TransactionCostsRelatedToSaleOfPotentialFutureRoyalties us-gaap:TypeOfArrangement

nktr:TransactionCostsRelatedToSaleOfPotentialFutureRoyalties

nktr:PurchaseAndSaleAgreement2020


Transaction
Period End2020-12-30
Value3800000.0
Percentage of TransactionCostsRelatedToSaleOfPotentialFutureRoyalties100.0

us-gaap:ContractWithCustomerLiabilityRevenueRecognized

us-gaap:ContractWithCustomerLiabilityRevenueRecognized


Contract
Period End2020-12-31
Value0.446
Percentage of ContractWithCustomerLiabilityRevenueRecognized100.0

us-gaap:ContractWithCustomerPerformanceObligationSatisfiedInPreviousPeriod

us-gaap:ContractWithCustomerPerformanceObligationSatisfiedInPreviousPeriod


Contract
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value18202242442020161931181728
Percentage of ContractWithCustomerPerformanceObligationSatisfiedInPreviousPeriod100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DepreciationAndAmortization

us-gaap:DepreciationAndAmortization


Depreciation
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value3.5433.2453.2453.194.5023.5743.453.0553.0773.0712.6842.5742.5414.2544.0333.8493.8683.9193.7153.7463.2762.862.9733.1943.2143.2553.2643.3933.6013.6533.6283.9133.6433.4723.483.5273.7753.7933.8564.0524.165
Percentage of DepreciationAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


Effect
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-20000.011000.0113000.0-7000.0-97000.0-25000.0-61000.0-2000.0-14000.0-14000.0-40000.0
Percentage of EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInOtherComprehensiveIncome us-gaap:FairValueByLiabilityClass

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInOtherComprehensiveIncome

us-gaap:DerivativeFinancialInstrumentsLiabilities


Fair
Period End2021-03-31
Value-1599000.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInOtherComprehensiveIncome100.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityIssues us-gaap:FairValueByLiabilityClass

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityIssues

us-gaap:DerivativeFinancialInstrumentsLiabilities


Fair
Period End2021-03-31
Value750000.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityIssues100.0

us-gaap:IncreaseDecreaseInContractWithCustomerLiability

us-gaap:IncreaseDecreaseInContractWithCustomerLiability


Increase
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-605000.0-446000.0-1280000.0-1280000.0-2510000.0-7100000.0-2750000.0-2511000.0-4204000.0-4400000.0-4682000.0-2571000.0-3678000.0
Percentage of IncreaseDecreaseInContractWithCustomerLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInEmployeeRelatedLiabilities

us-gaap:IncreaseDecreaseInEmployeeRelatedLiabilities


Increase
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value8.981-15.7818.0092.5499.92-11.6343.3911.3398.434-17.9858.9423.856.8672.883-6.8172.5473.272.4194.046-6.8071.9811.4683.607-8.0042.3671.959-4.8270.3442.8232.1350.179-3.9142.1682.332-4.621.0472.3251.755-1.572-1.32.6442.204-4.348
Percentage of IncreaseDecreaseInEmployeeRelatedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherAccruedLiabilities

us-gaap:IncreaseDecreaseInOtherAccruedLiabilities


Increase
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value-7.345-0.6960.3881.2367.716-6.203-5.489140.7741.344214.2990.6050.591.798-2.195-0.4450.6552.176-3.227-0.910.0481.811-1.394
Percentage of IncreaseDecreaseInOtherAccruedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherOperatingAssets

us-gaap:IncreaseDecreaseInOtherOperatingAssets


Increase
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-6.183-10.064-21.62628-1.06716-2.309-11.609-4.2099.5657.80516-1.853-0.146-2.1346.353-1.404-0.343-4.2944.668-3.6532.619-2.8093.9730.059-1.4560.7180.394-1.309-1.664-3.844-16.62418-3.871-4.30510-0.4410.9921.199-0.576-0.137-0.7470.883
Percentage of IncreaseDecreaseInOtherOperatingAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LiabilitiesFairValueAdjustment

us-gaap:LiabilitiesFairValueAdjustment


Liabilities
Period End2021-03-31
Value-1599000.0
Percentage of LiabilitiesFairValueAdjustment100.0

us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax


Other
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-766000.0-1350000.0-2144000.07688000.0-5121000.0-928000.0-261000.02197000.04685000.0
Percentage of OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherNoncashIncomeExpense

us-gaap:OtherNoncashIncomeExpense


Other
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value-2.345-1.932-0.5071.2892.5953.5234.3034.1453.6210.370.3580.731-0.0050.930.6430.6170.9170.827-0.3170.9380.8730.552-0.088-0.777-0.332-0.173-0.02-0.139-1.4861.206-0.27-0.295-0.392-0.347-0.311-0.309-0.374
Percentage of OtherNoncashIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsToAcquireAvailableForSaleSecuritiesDebt

us-gaap:PaymentsToAcquireAvailableForSaleSecuritiesDebt


Payments
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value295196247302241351425234368327954
Percentage of PaymentsToAcquireAvailableForSaleSecuritiesDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromDerivativeInstrumentFinancingActivities

us-gaap:ProceedsFromDerivativeInstrumentFinancingActivities


Proceeds
Period End2021-03-31
Value750000.0
Percentage of ProceedsFromDerivativeInstrumentFinancingActivities100.0

us-gaap:ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlans

us-gaap:ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlans


Proceeds
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-03-31
Value172.7451.5318.043114.9066.2497.3064.8942.6683.859203410112.2468.3983.5476.096167.7186.1131.685308.2072.8875.0742.9552.6321.4031.2180.940.479
Percentage of ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlans100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities

us-gaap:ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities


Proceeds
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value30329029842043949148827136242333495378958529437697144377376536156457310010010523271519213343113114119129112
Percentage of ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromSaleOfAvailableForSaleSecuritiesDebt

us-gaap:ProceedsFromSaleOfAvailableForSaleSecuritiesDebt


Proceeds
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value5.0360.00.0410.00.00.00.00.00.00.01111
Percentage of ProceedsFromSaleOfAvailableForSaleSecuritiesDebt100.00.00.0100.00.00.00.00.00.00.00.0100.0100.0

us-gaap:ResearchAndDevelopmentInProcess

us-gaap:ResearchAndDevelopmentInProcess


Research
Period End2021-03-31
Value2248000.0
Percentage of ResearchAndDevelopmentInProcess100.0

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability


Right
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value1.0570.00.00.02.1331.666540.01.2890.0
Percentage of RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability100.00.00.00.0100.0100.0100.00.0100.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue

us-gaap:RestrictedStockUnitsRSU


Share
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value20.63-1.821.56947000.01358000.028.0738000.0698000.057.27
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod


Share
Period End2021-03-312020-03-312011-09-302011-06-302010-09-302010-06-30
Value0.1210.0490.331480.263910.560320.71823
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross

us-gaap:EmployeeStockOption


Share
Period End2020-09-302019-09-30
Value233000.0131000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue


Share
Period End2021-03-312020-03-312011-09-302011-06-302010-09-302010-06-30
Value10.8211.882.794.96.757.34
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:EmployeeStockOption


Share
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value11.64275000.0245000.013.4317.025.51-9.4230.5244.3268.888.967.94-0.888.067.225.90.455.864.816.560.665.85.245.9707.115.234.590.014.78
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue0.00.02062289.60.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:StockIssuedDuringPeriodSharesShareBasedCompensation

us-gaap:StockIssuedDuringPeriodSharesShareBasedCompensation


Stock
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-03-312011-09-302011-06-302010-09-302010-06-30
Value2.1990.5840.00.0490.820.7385380.6980.6421.7509082.8548161.1301641.5186051.1937640.4513910.8625461.0315730.7339520.2352980.9613950.6673740.1217050.2817760.1422570.212299
Percentage of StockIssuedDuringPeriodSharesShareBasedCompensation100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodSharesShareBasedCompensation us-gaap:StatementEquityComponents

us-gaap:CommonStock


Stock
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value2.1990.5840.9471.3580.820.7380.6980.6421.7512.8552.9677180.9613950.3505130.6673740.5039270.3068590.2220120.202202
Percentage of StockIssuedDuringPeriodSharesShareBasedCompensation100.0100.00.02771.4100.099.9100.0100.0100.0100.00.0100.00.0100.00.00.00.00.0

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation


Stock
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value171.4557.826115.8827.1035.4633.942034
Percentage of StockIssuedDuringPeriodValueShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stock
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value171.4557.825115.8827.1035.4633.942034
Percentage of StockIssuedDuringPeriodValueShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

nktr:AccruedClinicalTrialExpensesCurrent

nktr:AccruedClinicalTrialExpensesCurrent


Accrued
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302017-12-31
Value41444842383238291714209.461
Percentage of AccruedClinicalTrialExpensesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

nktr:AccruedContractManufacturingExpenseCurrent

nktr:AccruedContractManufacturingExpenseCurrent


Accrued
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value6.057117.141118.5797.3048.6462321233.845
Percentage of AccruedContractManufacturingExpenseCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

nktr:AdvancePaymentsToContractManufacturers

nktr:AdvancePaymentsToContractManufacturers


Advance
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value3.90810151331131727267.155
Percentage of AdvancePaymentsToContractManufacturers100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

nktr:AreaOfLeasedSpace us-gaap:LeaseContractualTerm

nktr:AreaOfLeasedSpace

nktr:MissionBayLease


Area
Period End2020-12-31
Value153200.0
Percentage of AreaOfLeasedSpace100.0

nktr:ThirdStreetLease


Area
Period End2020-12-31
Value135940.0
Percentage of AreaOfLeasedSpace88.7

nktr:CashRestrictedCashCashEquivalentsAndAvailableForSaleInvestments

nktr:CashRestrictedCashCashEquivalentsAndAvailableForSaleInvestments


Cash
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302018-03-312017-12-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-03-312012-12-31
Value11001200120012001500160017001800184419182106333353310362389253274288308267325262261301309262208261302
Percentage of CashRestrictedCashCashEquivalentsAndAvailableForSaleInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

nktr:DeferredTaxAssetsDepreciationPropertyAndEquipment

nktr:DeferredTaxAssetsDepreciationPropertyAndEquipment


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value115.0212.1246.8486.8826.4518.2648.588.4828.0817.654
Percentage of DeferredTaxAssetsDepreciationPropertyAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

nktr:DeferredTaxAssetsLeaseLiability

nktr:DeferredTaxAssetsLeaseLiability


Deferred
Period End2020-12-312019-12-312018-12-31
Value35360.0
Percentage of DeferredTaxAssetsLeaseLiability100.0100.00.0

nktr:DeferredTaxAssetsLiabilityRelatedToTheSaleOfFutureRoyalties

nktr:DeferredTaxAssetsLiabilityRelatedToTheSaleOfFutureRoyalties


Deferred
Period End2020-12-31
Value32
Percentage of DeferredTaxAssetsLiabilityRelatedToTheSaleOfFutureRoyalties100.0

nktr:DepreciablePropertyPlantAndEquipmentGross

nktr:DepreciablePropertyPlantAndEquipmentGross


Depreciable
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value193188164161173165147144142139141
Percentage of DepreciablePropertyPlantAndEquipmentGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

nktr:DepreciablePropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType

nktr:BuildingAndLeaseholdImprovements


Depreciable
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value9293778175777271727273
Percentage of DepreciablePropertyPlantAndEquipmentGross48.149.447.350.543.346.948.849.250.852.151.8

nktr:ComputerFurnitureAndOther


Depreciable
Period End2020-12-312019-12-312018-12-312017-12-31
Value28263127
Percentage of DepreciablePropertyPlantAndEquipmentGross14.814.319.117.3

nktr:LaboratoryEquipment


Depreciable
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value4036333127272626273331
Percentage of DepreciablePropertyPlantAndEquipmentGross20.719.420.619.415.816.518.218.419.124.222.6

nktr:ManufacturingLaboratoryAndOtherEquipment


Depreciable
Period End2020-12-312019-12-312018-12-31
Value212221
Percentage of DepreciablePropertyPlantAndEquipmentGross11.311.713.0

us-gaap:FurnitureAndFixtures


Depreciable
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value9.8729.6627.9592726242323212022
Percentage of DepreciablePropertyPlantAndEquipmentGross5.15.14.817.315.315.115.916.015.414.916.1

nktr:DepreciablePropertyPlantAndEquipmentNet

nktr:DepreciablePropertyPlantAndEquipmentNet


Depreciable
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value5460434662625460697687
Percentage of DepreciablePropertyPlantAndEquipmentNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

nktr:LesseeOperatingLeaseLiabilityTenantImprovementReimbursements

nktr:LesseeOperatingLeaseLiabilityTenantImprovementReimbursements


Lessee
Period End2020-12-31
Value3511000.0
Percentage of LesseeOperatingLeaseLiabilityTenantImprovementReimbursements100.0

nktr:LiabilitiesOnSaleOfFutureRoyaltiesUnamortizedTransactionCosts

nktr:LiabilitiesOnSaleOfFutureRoyaltiesUnamortizedTransactionCosts


Liabilities
Period End2020-12-312019-12-31
Value4915000.01531000.0
Percentage of LiabilitiesOnSaleOfFutureRoyaltiesUnamortizedTransactionCosts100.0100.0

nktr:LiabilitiesOnSaleOfFutureRoyaltiesUnamortizedTransactionCosts us-gaap:TypeOfArrangement

nktr:PurchaseAndSaleAgreement2012


Liabilities
Period End2020-12-31
Value1165000.0
Percentage of LiabilitiesOnSaleOfFutureRoyaltiesUnamortizedTransactionCosts23.7

nktr:PurchaseAndSaleAgreement2020


Liabilities
Period End2020-12-31
Value3750000.0
Percentage of LiabilitiesOnSaleOfFutureRoyaltiesUnamortizedTransactionCosts76.3

nktr:LiabilityRelatedToSaleOfPotentialFutureRoyaltiesNonCurrent

nktr:LiabilityRelatedToSaleOfPotentialFutureRoyaltiesNonCurrent


Liability
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-03-312012-12-312012-02-242012-02-22
Value2057384961081081111141191211211201201211211211251221280.00.0
Percentage of LiabilityRelatedToSaleOfPotentialFutureRoyaltiesNonCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0

nktr:LiabilityRelatedToSaleOfPotentialFutureRoyaltiesNonCurrent us-gaap:TypeOfArrangement

nktr:PurchaseAndSaleAgreement2012


Liability
Period End2020-12-312019-12-31
Value6573
Percentage of LiabilityRelatedToSaleOfPotentialFutureRoyaltiesNonCurrent32.1100.0

nktr:PurchaseAndSaleAgreement2020


Liability
Period End2020-12-31
Value139
Percentage of LiabilityRelatedToSaleOfPotentialFutureRoyaltiesNonCurrent67.9

nktr:LiabilityRelatedToSaleOfPotentialFutureRoyaltiesNonCurrentNetOfIssuanceCosts

nktr:LiabilityRelatedToSaleOfPotentialFutureRoyaltiesNonCurrentNetOfIssuanceCosts


Liability
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302018-03-312017-12-312017-06-302017-03-312016-12-31
Value1952006668697273778082889294101103105
Percentage of LiabilityRelatedToSaleOfPotentialFutureRoyaltiesNonCurrentNetOfIssuanceCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

nktr:LiabilityRelatedToSaleOfPotentialFutureRoyaltiesNonCurrentNetOfIssuanceCosts us-gaap:TypeOfArrangement

nktr:PurchaseAndSaleAgreement2012


Liability
Period End2020-12-31
Value64
Percentage of LiabilityRelatedToSaleOfPotentialFutureRoyaltiesNonCurrentNetOfIssuanceCosts32.3

nktr:PurchaseAndSaleAgreement2020


Liability
Period End2020-12-31
Value135
Percentage of LiabilityRelatedToSaleOfPotentialFutureRoyaltiesNonCurrentNetOfIssuanceCosts67.7

nktr:NetOperatingLossCarryforwardForIncomeTax us-gaap:IncomeTaxAuthority

nktr:NetOperatingLossCarryforwardForIncomeTax

us-gaap:DomesticCountry


Net
Period End2020-12-312019-12-312018-12-312017-12-312015-12-312014-12-31
Value200017211304161012231131
Percentage of NetOperatingLossCarryforwardForIncomeTax100.0100.0100.0100.0100.0100.0

nktr:NumberOfSecuritiesAvailableForIssuanceUnderEquityCompensationPlans us-gaap:PlanName

nktr:NumberOfSecuritiesAvailableForIssuanceUnderEquityCompensationPlans

nktr:EmployeeStockPurchasePlan


Number
Period End2020-12-31
Value1.321
Percentage of NumberOfSecuritiesAvailableForIssuanceUnderEquityCompensationPlans100.0

nktr:TwoThousandSeventeenPerformanceIncentivePlan


Number
Period End2020-12-31
Value7.569
Percentage of NumberOfSecuritiesAvailableForIssuanceUnderEquityCompensationPlans573.0

nktr:ObligationsUnderDirectorAndOfficerIndemnificationsPerIncident us-gaap:LossContingenciesByNatureOfContingency

nktr:ObligationsUnderDirectorAndOfficerIndemnificationsPerIncident

nktr:NonSecuritiesRelatedClaims


Obligations
Period End2020-12-312019-12-312018-12-312017-12-312015-12-312014-12-312012-12-312011-12-31
Value10000000.01500000.01250000.0500000.0500000.0500000.0150000.0250000.0
Percentage of ObligationsUnderDirectorAndOfficerIndemnificationsPerIncident100.0100.0100.0100.0100.0100.0100.0100.0

nktr:SecuritiesRelatedClaims


Obligations
Period End2020-12-312019-12-312018-12-312017-12-312015-12-312014-12-312012-12-312011-12-31
Value10000000.05000000.02500000.01800000.01000000.01000000.0500000.0500000.0
Percentage of ObligationsUnderDirectorAndOfficerIndemnificationsPerIncident100.0333.3200.0360.0200.0200.0333.3200.0

nktr:PotentialDevelopmentMilestones

nktr:PotentialDevelopmentMilestones


Potential
Period End2020-12-312019-12-312018-03-312017-03-312016-03-312015-03-312014-03-31
Value17001700295147112128144
Percentage of PotentialDevelopmentMilestones100.0100.0100.0100.0100.0100.0100.0

nktr:PotentialDevelopmentMilestones dei:LegalEntity

nktr:OtherPartner


Potential
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312018-03-312017-03-312016-03-312015-03-31
Value404040404045454551
Percentage of PotentialDevelopmentMilestones2.40.00.00.02.415.431.040.640.4

nktr:PotentialDevelopmentMilestones us-gaap:ConsolidatedEntities, us-gaap:TypeOfArrangement

srt:ParentCompany, nktr:OtherPartner


Potential
Period End2021-03-31
Value40
Percentage of PotentialDevelopmentMilestones0.0

nktr:PotentialDevelopmentMilestonesExcludedFromTransactionPrice nktr:Milestone, us-gaap:ConsolidatedEntities, us-gaap:ProductOrService, us-gaap:TypeOfArrangement

nktr:PotentialDevelopmentMilestonesExcludedFromTransactionPrice

nktr:MilestoneOne, srt:ParentCompany, nktr:Nektar214, nktr:BristolMyersSquibbCollaborationAgreement


Potential
Period End2021-03-31
Value1800
Percentage of PotentialDevelopmentMilestonesExcludedFromTransactionPrice100.0

nktr:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndRestrictedStockUnitsOutstanding

nktr:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndRestrictedStockUnitsOutstanding


Share
Period End2020-12-312017-12-312015-12-312014-12-312012-12-312011-12-31
Value202120211917
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndRestrictedStockUnitsOutstanding100.0100.0100.0100.0100.0100.0

us-gaap:AssetsFairValueDisclosure us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:AssetsFairValueDisclosure

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring


Assets
Period End2021-03-312020-12-31
Value123179
Percentage of AssetsFairValueDisclosure100.0100.0

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring


Assets
Period End2021-03-312020-12-31
Value9931003
Percentage of AssetsFairValueDisclosure804.2559.6

us-gaap:AssetsFairValueDisclosure us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring


Assets
Period End2021-03-312020-12-31
Value11171182
Percentage of AssetsFairValueDisclosure904.2659.6

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax


Available
Period End2020-12-312019-12-31
Value1100000.02100000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax100.0100.0

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:FairValueInputsLevel2


Available
Period End2021-03-312020-12-312020-09-302020-06-302020-03-31
Value352000.01081000.02473000.04570000.0830000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax0.098.30.00.00.0

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:InvestmentType

us-gaap:FairValueInputsLevel2, us-gaap:CommercialPaper


Available
Period End2021-03-312020-12-312020-09-302020-06-302020-03-31
Value35000.044000.0131000.0475000.094000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax0.04.00.00.00.0

us-gaap:FairValueInputsLevel2, us-gaap:CorporateDebtSecurities


Available
Period End2021-03-312020-12-312020-09-302020-06-302020-03-31
Value313000.01035000.02341000.04095000.0736000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax0.094.10.00.00.0

us-gaap:FairValueInputsLevel2, us-gaap:USGovernmentAgenciesDebtSecurities


Available
Period End2021-03-312020-12-312020-09-302020-06-30
Value4000.02000.01000.00
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax0.00.20.00.0

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax


Available
Period End2020-12-312019-12-31
Value200000.0300000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax100.0100.0

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:FairValueInputsLevel2


Available
Period End2021-03-312020-12-312020-09-302020-06-302020-03-31
Value212000.0176000.0215000.0170000.04118000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax0.088.00.00.00.0

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:InvestmentType

us-gaap:FairValueInputsLevel2, us-gaap:CommercialPaper


Available
Period End2021-03-312020-12-312020-09-302020-06-302020-03-31
Value41000.067000.014000.026000.0108000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax0.033.50.00.00.0

us-gaap:FairValueInputsLevel2, us-gaap:CorporateDebtSecurities


Available
Period End2021-03-312020-12-312020-09-302020-06-302020-03-31
Value171000.0109000.0201000.0143000.04010000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax0.054.50.00.00.0

us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis

us-gaap:FairValueInputsLevel2


Available
Period End2021-03-312020-12-312020-09-302020-06-302020-03-31
Value9931002108711391362
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis100.0100.0100.0100.0100.0

us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:InvestmentType

us-gaap:FairValueInputsLevel2, us-gaap:CommercialPaper


Available
Period End2021-03-312020-12-312020-09-302020-06-302020-03-31
Value478313245235373
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis48.131.322.620.727.4

us-gaap:FairValueInputsLevel2, us-gaap:CorporateDebtSecurities


Available
Period End2021-03-312020-12-312020-09-302020-06-302020-03-31
Value510686831893989
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis51.468.576.578.472.6

us-gaap:FairValueInputsLevel2, us-gaap:USGovernmentAgenciesDebtSecurities


Available
Period End2021-03-312020-12-312020-09-302020-06-30
Value4.882.389.9989.995
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis0.50.20.90.9

us-gaap:AvailableForSaleSecuritiesDebtSecurities us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:AvailableForSaleSecuritiesDebtSecurities

us-gaap:FairValueInputsLevel2


Available
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value99310031089114413591507
Percentage of AvailableForSaleSecuritiesDebtSecurities100.0100.0100.0100.0100.0100.0

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

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring, us-gaap:CommercialPaper


Available
Period End2021-03-312020-12-31
Value478313
Percentage of AvailableForSaleSecuritiesDebtSecurities48.131.2

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring, us-gaap:CorporateDebtSecurities


Available
Period End2021-03-312020-12-31
Value510687
Percentage of AvailableForSaleSecuritiesDebtSecurities51.468.5

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring, us-gaap:USGovernmentAgenciesDebtSecurities


Available
Period End2021-03-312020-12-31
Value4.8842.382
Percentage of AvailableForSaleSecuritiesDebtSecurities0.50.2

us-gaap:AvailableForSaleSecuritiesDebtSecurities us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:InvestmentType

us-gaap:FairValueInputsLevel2, us-gaap:CommercialPaper


Available
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value478313245236373375482427412498
Percentage of AvailableForSaleSecuritiesDebtSecurities48.131.222.620.727.524.90.00.00.00.0

us-gaap:FairValueInputsLevel2, us-gaap:CorporateDebtSecurities


Available
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value51068783389798611321163128313631288216
Percentage of AvailableForSaleSecuritiesDebtSecurities51.468.576.578.572.575.10.00.00.00.00.0

us-gaap:FairValueInputsLevel2, us-gaap:USGovernmentAgenciesDebtSecurities


Available
Period End2021-03-312020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value4.8842.3829.9999.9940.00.01313122.977
Percentage of AvailableForSaleSecuritiesDebtSecurities0.50.20.90.90.00.00.00.00.00.0

us-gaap:AvailableForSaleSecuritiesDebtSecurities us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument

us-gaap:FairValueMeasurementsRecurring, us-gaap:CommercialPaper


Available
Period End2021-03-312020-12-31
Value478313
Percentage of AvailableForSaleSecuritiesDebtSecurities48.131.2

us-gaap:FairValueMeasurementsRecurring, us-gaap:CorporateDebtSecurities


Available
Period End2021-03-312020-12-31
Value510687
Percentage of AvailableForSaleSecuritiesDebtSecurities51.468.5

us-gaap:FairValueMeasurementsRecurring, us-gaap:USGovernmentAgenciesDebtSecurities


Available
Period End2021-03-312020-12-31
Value4.8842.382
Percentage of AvailableForSaleSecuritiesDebtSecurities0.50.2

us-gaap:AvailableForSaleSecuritiesDebtSecuritiesCurrent

us-gaap:AvailableForSaleSecuritiesDebtSecuritiesCurrent


Available
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value887862900980111812281414142912811140291
Percentage of AvailableForSaleSecuritiesDebtSecuritiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AvailableForSaleSecuritiesDebtSecuritiesNoncurrent

us-gaap:AvailableForSaleSecuritiesDebtSecuritiesNoncurrent


Available
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value9613619717218527923127645558257
Percentage of AvailableForSaleSecuritiesDebtSecuritiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerLiability

us-gaap:ContractWithCustomerLiability


Contract
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302017-12-31
Value2.5553.0014.2815.5618.071151720243137
Percentage of ContractWithCustomerLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerLiability dei:LegalEntity

nktr:AmgenInc


Contract
Period End2020-09-30
Value0.4
Percentage of ContractWithCustomerLiability13.3

nktr:OtherPartner


Contract
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-30
Value2.02.02.04.06.06.06.06.44.6
Percentage of ContractWithCustomerLiability66.646.736.049.639.533.529.426.014.5

us-gaap:ContractWithCustomerLiabilityNoncurrent

us-gaap:ContractWithCustomerLiabilityNoncurrent


Contract
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302017-12-31
Value2.4642.4942.5242.5542.5546.7798.0299.34101319
Percentage of ContractWithCustomerLiabilityNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsGross


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value701608460496665613595586534503450
Percentage of DeferredTaxAssetsGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsOperatingLossCarryforwards

us-gaap:DeferredTaxAssetsOperatingLossCarryforwards


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value456399300364508447423391351342318
Percentage of DeferredTaxAssetsOperatingLossCarryforwards100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxCreditCarryforwardsResearch

us-gaap:DeferredTaxAssetsTaxCreditCarryforwardsResearch


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value1321281169474706661525149
Percentage of DeferredTaxAssetsTaxCreditCarryforwardsResearch100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value3230211426222125233228
Percentage of DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesLeasingArrangements

us-gaap:DeferredTaxLiabilitiesLeasingArrangements


Deferred
Period End2020-12-312019-12-312018-12-31
Value29310.0
Percentage of DeferredTaxLiabilitiesLeasingArrangements100.0100.00.0

us-gaap:DeferredTaxLiabilitiesOther

us-gaap:DeferredTaxLiabilitiesOther


Deferred
Period End2020-12-312019-12-312018-12-31
Value1856000.01725000.01270000.0
Percentage of DeferredTaxLiabilitiesOther100.0100.0100.0

us-gaap:DerivativeLiabilities us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:DerivativeLiabilities

us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsRecurring


Derivative
Period End2021-03-31
Value4597000.0
Percentage of DerivativeLiabilities100.0

us-gaap:DerivativeLiabilities us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring


Derivative
Period End2021-03-31
Value4597000.0
Percentage of DerivativeLiabilities100.0

us-gaap:DerivativeLiabilitiesNoncurrent

us-gaap:DerivativeLiabilitiesNoncurrent


Derivative
Period End2021-03-31
Value4597000.0
Percentage of DerivativeLiabilitiesNoncurrent100.0

us-gaap:DerivativeLiabilityMeasurementInput us-gaap:CounterpartyName, us-gaap:MeasurementInputType

us-gaap:DerivativeLiabilityMeasurementInput

nktr:SFJPharmaceuticals, nktr:CostOfBorrowing


Derivative
Period End2021-02-12
Value1.0
Percentage of DerivativeLiabilityMeasurementInput100.0

us-gaap:DerivativeLiabilityMeasurementInput us-gaap:MeasurementInputType

nktr:CostOfBorrowing


Derivative
Period End2021-02-12
Value12.2
Percentage of DerivativeLiabilityMeasurementInput1220.0

us-gaap:EmployeeRelatedLiabilitiesCurrent

us-gaap:EmployeeRelatedLiabilitiesCurrent


Employee
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302018-03-312017-12-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value2314292222112319189.93718158.2631411181512105.998129.3565.74913119.42714138.9528.77312108.18712119.4357.689.252
Percentage of EmployeeRelatedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized


Employee
Period End2020-12-31
Value193
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized100.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue us-gaap:FairValueByLiabilityClass

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue

us-gaap:DerivativeFinancialInstrumentsLiabilities


Fair
Period End2021-03-31
Value4597000.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue100.0

us-gaap:InterestReceivableCurrent

us-gaap:InterestReceivableCurrent


Interest
Period End2020-12-312020-09-302020-06-302020-03-312019-12-31
Value5100000.05400000.06100000.06200000.06500000.0
Percentage of InterestReceivableCurrent100.0100.0100.0100.0100.0

us-gaap:InventoryFinishedGoodsNetOfReserves

us-gaap:InventoryFinishedGoodsNetOfReserves


Inventory
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302018-03-312017-12-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-03-312014-12-312014-09-302014-06-302013-12-31
Value1806000.02167000.0317000.02348000.01659000.02725000.04173000.04470000.01158000.03132000.0594000.01015000.04087000.02258000.01369000.01743000.01673000.01000000.0757000.02023000.081000.02445000.05565000.01656000.02007000.03359000.0
Percentage of InventoryFinishedGoodsNetOfReserves100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InventoryRawMaterialsNetOfReserves

us-gaap:InventoryRawMaterialsNetOfReserves


Inventory
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302018-03-312017-12-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-03-312014-12-312014-09-302014-06-302013-12-31
Value1920000.02422000.01387000.01681000.01198000.01673000.01586000.01757000.01688000.01846000.01807000.01742000.01796000.01543000.01880000.02055000.02386000.02630000.03050000.03236000.01777000.02401000.02200000.01726000.01719000.03947000.0
Percentage of InventoryRawMaterialsNetOfReserves100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InventoryWorkInProcessNetOfReserves

us-gaap:InventoryWorkInProcessNetOfReserves


Inventory
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302018-03-312017-12-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-03-312014-12-312014-09-302014-06-302013-12-31
Value1310118.555118.2677.9616.9618.9326.4039.4837.9184.8437.2079.7677.3116.6956.6327.4436.0878.4947.6655.1878.313106.146
Percentage of InventoryWorkInProcessNetOfReserves100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InvestmentsFairValueDisclosure us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument

us-gaap:InvestmentsFairValueDisclosure

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring, us-gaap:MoneyMarketFunds


Investments
Period End2021-03-312020-12-31
Value123179
Percentage of InvestmentsFairValueDisclosure100.0100.0

us-gaap:InvestmentsFairValueDisclosure us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:InvestmentType

us-gaap:FairValueInputsLevel1, us-gaap:MoneyMarketFunds


Investments
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302018-03-312017-12-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value123179485215883455842105100210.30214195162546953171231128232526
Percentage of InvestmentsFairValueDisclosure100.0100.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:InvestmentsFairValueDisclosure us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument

us-gaap:FairValueMeasurementsRecurring, us-gaap:MoneyMarketFunds


Investments
Period End2021-03-312020-12-31
Value123179
Percentage of InvestmentsFairValueDisclosure100.0100.0

us-gaap:InvestmentsFairValueDisclosure us-gaap:InvestmentType

us-gaap:CertificatesOfDeposit


Investments
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-06-302018-03-312017-12-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value8.2549.6238.7958.258.2486.9516.8716.8726.7596.766.7131.2251.1322.932.932.932.932.932.932.932.930.0
Percentage of InvestmentsFairValueDisclosure6.75.40.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths


Lessee
Period End2020-12-31
Value17
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths100.0

us-gaap:LettersOfCreditOutstandingAmount

us-gaap:LettersOfCreditOutstandingAmount


Letters
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value8100000.06800000.06600000.01100000.02400000.02400000.02400000.0
Percentage of LettersOfCreditOutstandingAmount100.0100.0100.0100.0100.0100.0100.0

us-gaap:PurchaseCommitmentRemainingMinimumAmountCommitted

us-gaap:PurchaseCommitmentRemainingMinimumAmountCommitted


Purchase
Period End2020-12-312019-12-31
Value8.025
Percentage of PurchaseCommitmentRemainingMinimumAmountCommitted100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber

us-gaap:RestrictedStockUnitsRSU


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312012-12-312011-12-31
Value7094000.04935000.03320000.02578000.02248000.01306000.00120580.0136080.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber100.0100.0100.0100.0100.0100.00.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue

us-gaap:RestrictedStockUnitsRSU


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value22.4630.8541.5735.5213.53
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber


Share
Period End2020-12-31
Value9523000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice


Share
Period End2020-12-31
Value22.99
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue


Share
Period End2020-12-31
Value23
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue100.0

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1


Sharebased
Period End2020-12-31
Value23
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:ComprehensiveIncomeNetOfTax
us-gaap:StatementEquityComponents
(None,)
Comprehensive Income Net Of Taxus-gaap: Statement Equity Components
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:ProductOrService
(None,)
Revenue From Contract With Customer Excluding Assessed Taxus-gaap: Product Or Service
us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents
(None,)
Stockholders Equityus-gaap: Statement Equity Components
us-gaap:AccountsReceivableNetCurrent
us-gaap:CounterpartyName
(None,)
Accounts Receivable Net Currentus-gaap: Counterparty Name
us-gaap:PropertyPlantAndEquipmentNet
us-gaap:StatementGeographical
(None,)
Property Plant And Equipment Netus-gaap: Statement Geographical
us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents
(None,)
Stockholders Equityus-gaap: Statement Equity Components