TWTR


Line plots across dimensions of each concept
Tables

Table of contents



us-gaap:CommonStockValue

us-gaap:SharesOutstanding
us-gaap:StatementEquityComponents

us-gaap:CommonStockSharesIssued

us-gaap:CommonStockSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted

us-gaap:Revenues
us-gaap:ProductOrService
us-gaap:StatementGeographical

us-gaap:CostOfRevenue

us-gaap:CostsAndExpenses

us-gaap:ResearchAndDevelopmentExpense

us-gaap:GeneralAndAdministrativeExpense

us-gaap:SellingAndMarketingExpense

us-gaap:OperatingIncomeLoss

us-gaap:InterestExpense

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeTaxExpenseBenefit

us-gaap:ProfitLoss

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

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:InvestmentType

us-gaap:ShortTermInvestments

us-gaap:AccountsReceivableNetCurrent

us-gaap:PrepaidExpenseAndOtherAssetsCurrent

us-gaap:Goodwill
us-gaap:BusinessAcquisition

us-gaap:FiniteLivedIntangibleAssetsNet
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:OtherAssetsNoncurrent

us-gaap:LiabilitiesCurrent

us-gaap:AccountsPayableCurrent

us-gaap:OtherAccruedLiabilitiesCurrent

us-gaap:TaxesPayableCurrent

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents

us-gaap:CommonStockValue

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:ProfitLoss

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

twtr:ChangesInAccruedPropertyAndEquipmentPurchases

twtr:DebtInstrumentCouponInterestExpense

twtr:DeferredTaxAssetIncreaseDecreaseDueToIntraEntityIntangibleAssetTransfer

twtr:IncreaseDecreaseInOperatingLeaseLiabilities

twtr:IncreaseDecreaseInOperatingLeaseRightOfUseAssets

twtr:IncrementalWeightedAverageSharesAttributableToDilutedEffectOfOtherShares

twtr:IncrementalWeightedAverageSharesAttributableToDilutedEffectOfRestrictedStockUnits
us-gaap:PlanName
twtr:OutstandingSharesOfCommonStockPercentageForIncrease
us-gaap:AwardType
twtr:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodPercentageOfTargetLevel
us-gaap:StatementEquityComponents
twtr:StockIssuedDuringPeriodSharesRestrictedStockUnitsVesting
us-gaap:StatementEquityComponents
us-gaap:AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt
us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents
us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue

us-gaap:AllocatedShareBasedCompensationExpense
us-gaap:IncomeStatementLocation

us-gaap:AmortizationOfDebtDiscountPremium

us-gaap:AmortizationOfFinancingCostsAndDiscounts

us-gaap:AmortizationOfIntangibleAssets
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

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

us-gaap:DeferredIncomeTaxExpenseBenefit

us-gaap:DepreciationAndAmortization

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
us-gaap:PropertyPlantAndEquipmentByType
us-gaap:EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount

us-gaap:FinanceLeasePrincipalPayments

us-gaap:GainLossOnForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments

us-gaap:ImpairmentOfInvestments
us-gaap:IncomeStatementLocation

us-gaap:IncreaseDecreaseInAccountsPayable

us-gaap:IncreaseDecreaseInAccountsReceivable

us-gaap:IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets
us-gaap:DebtInstrument
us-gaap:IncrementalCommonSharesAttributableToConversionOfDebtSecurities

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements

us-gaap:InvestmentIncomeNonoperating

us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
us-gaap:StatementEquityComponents

us-gaap:OtherNoncashIncomeExpense

us-gaap:PaymentsForProceedsFromOtherInvestingActivities

us-gaap:PaymentsOfDebtIssuanceCosts

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:PaymentsToAcquireAvailableForSaleSecuritiesDebt

us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired

us-gaap:PaymentsToAcquireProductiveAssets

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

us-gaap:ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities

us-gaap:ProceedsFromSaleOfAvailableForSaleSecuritiesDebt

us-gaap:ProceedsFromSaleOfProductiveAssets

us-gaap:ProceedsFromStockOptionsExercised

us-gaap:ProvisionForDoubtfulAccounts

us-gaap:RelatedPartyTransactionOtherRevenuesFromTransactionsWithRelatedParty

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue
us-gaap:StatementEquityComponents
us-gaap:SharesPaidForTaxWithholdingForShareBasedCompensation

us-gaap:StockIssued1
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised

us-gaap:WeightedAverageNumberOfSharesIssuedBasic

us-gaap:WeightedAverageNumberOfSharesRestrictedStock

twtr:AccruedPublisherContentAndAdNetworkCosts

twtr:InvestmentOwnedAtCarryingValue

twtr:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization

twtr:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization
us-gaap:StatementGeographical

twtr:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization
us-gaap:PropertyPlantAndEquipmentByType

us-gaap:AccruedLiabilitiesCurrent

us-gaap:AccruedProfessionalFeesCurrent

us-gaap:AdditionalPaidInCapitalCommonStock

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

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
us-gaap:InvestmentType

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
us-gaap:InvestmentType

us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis
us-gaap:InvestmentType

us-gaap:AvailableForSaleSecuritiesDebtSecuritiesCurrent
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:InvestmentType
us-gaap:FairValueByMeasurementFrequency, us-gaap:InvestmentType
us-gaap:InvestmentType
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:InvestmentType
us-gaap:CashAndCashEquivalentsFairValueDisclosure
us-gaap:FairValueByMeasurementFrequency, us-gaap:InvestmentType
us-gaap:DebtInstrument
us-gaap:ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1

us-gaap:ContractWithCustomerAssetNet

us-gaap:ContractWithCustomerLiability

us-gaap:ContractWithCustomerLiabilityCurrent
us-gaap:DebtInstrument, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:LongtermDebtType
us-gaap:ConvertibleDebtFairValueDisclosures

us-gaap:ConvertibleLongTermNotesPayable
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:AdjustmentsForNewAccountingPronouncements, us-gaap:StatementEquityComponents
us-gaap:CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption
us-gaap:StatementEquityComponents
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentConvertibleCarryingAmountOfTheEquityComponent
us-gaap:DebtInstrument
us-gaap:DebtInstrumentConvertibleConversionPrice1
us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:StatementEquityComponents
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentFaceAmount
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DeferredFinanceCostsGross

us-gaap:DeferredIncomeTaxAssetsNet

us-gaap:DeferredIncomeTaxesAndOtherTaxLiabilitiesNoncurrent

us-gaap:DerivativeNotionalAmount

us-gaap:EmployeeRelatedLiabilitiesCurrent

us-gaap:EquitySecuritiesFvNi
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency

us-gaap:FinanceLeaseLiabilityCurrent

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:FiniteLivedIntangibleAssetsGross
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:ForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByMeasurementFrequency

us-gaap:ForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:LiabilitiesFairValueDisclosure
us-gaap:FairValueByMeasurementFrequency

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:RelatedPartyTransactionDueFromToRelatedParty

us-gaap:RestrictedCashAndCashEquivalentsAtCarryingValue

us-gaap:RestrictedCashAndCashEquivalentsNoncurrent

us-gaap:RevenueRemainingPerformanceObligation

us-gaap:SeniorLongTermNotes
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue

Tables

  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
us-gaap:CommonStockValue ███████████████▁▁▁▁▁▁▁▁▁▁▁4000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.03000.03000.03000.03000.03000.03000.03000.03000.03000.03000.03000.0NANANA
us-gaap:SharesOutstanding █▇▆▆▅▄▄▃▂▁784779775772767764760756752746NANANA721NANANA642NANANA642NANANA569NANANA
 us-gaap:SharesOutstanding us-gaap:StatementEquityComponents us-gaap:CommonStock█▇▆▆▅▄▄▃▂▁784779775772767764760756752746NANANA721NANANA694NANANA642NANANA569NANANA
us-gaap:CommonStockSharesIssued ████▇▇▇▇▇▇▇▆▆▆▆▅▅▅▅▄▄▃▃▂▂▁784779775772767764760756752746741736729721713706700694681674653642632612589569NANANA
us-gaap:CommonStockSharesOutstanding █▇██▇▇▇▇▇▇▇▆▆▆▆▅▅▅▅▄▄▃▃▂▂▁784764775772767764760756752746741736729721713706700694681674653642632612589569NANANA
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding 780NA790785777NA776772765NA736730722NA704698691NA670655640NA614595570NA133132127
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic 780NA772768764NA756752747NA736730722NA704698691NA670655640NA614595570NA133132127
us-gaap:EarningsPerShareBasic ▅▆▅█▆▆▇▆▅▆▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▁▄▅▅-0.010.14999999999999990.051.460.250.34000000000000011.040.130.080.12000000000000002-0.03-0.16-0.09-0.23000000000000004-0.15-0.15-0.12-0.13-0.2-0.21-0.25-0.19999999999999996-0.29-0.24-0.23-2.39-0.48-0.32-0.21
us-gaap:EarningsPerShareDiluted ▅▆▅█▆▆▇▆▆▆▅▅▅▅▅▅▅▅▅▅▅▅▅▅▅▁▄▅▅-0.010.150000000000000130.051.430.250.330000000000000071.020.130.080.12000000000000002-0.03-0.16-0.09-0.23000000000000004-0.15-0.15-0.12-0.13-0.2-0.21-0.25-0.19999999999999996-0.29-0.24-0.23-2.39-0.48-0.32-0.21
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
us-gaap:Revenues ▆█▇▇▆▇▆▆▅▆▅▅▄▆▅▅▅▆▅▄▄▄▃▃▂▂▁▁▁8071007823841786908758710664731589573548717615601594710569502435479361312250242168139114
 us-gaap:Revenues us-gaap:ProductOrService twtr:AdvertisingServices▆█▆▆▆▇▆▅▅▅▄▄▄▅▄▄▄▅▄▃▃▃▂▂▁682884702727679791649601575644502489473637544534530640512452388432320277226NANANANA
 us-gaap:Revenues us-gaap:ProductOrService twtr:DataLicensingAndOther███▇▇▇▇▇▆▅▅▅▄▅▄▄▄▄▃▃▃▃▂▂▁1251221211141071171081098987868474797067636956504747413424NANANANA
 us-gaap:Revenues us-gaap:StatementGeographical country:JP▇█▇▇██▇▆▆▅▃▁▁▂▁1311391281331351381301221161069074727973NANANANANANANANANANANANANANA
 us-gaap:Revenues us-gaap:StatementGeographical country:US▆█▆▆▆▇▅▅▄▅▄▄▄▆▅▅▅▆▅▄▃▄▃▂▂▂▁468591465455432505423366346406332334340439373360390463369321288315240210180176124NANA
 us-gaap:Revenues us-gaap:StatementGeographical twtr:RestOfWorld▅█▆▇▅▇▄▅▄▅▃▂▁▄▃208276229253218264204221201219166164135198168NANANANANANANANANANANANANANA
us-gaap:CostOfRevenue ▇█▇▇▇▇▆▆▆▆▅▅▆█▆▅▅▆▅▄▄▃▃▃▂▃▂▁▁28431428127726426824323022221721021222030522520219821720016714313612410085112625041
us-gaap:CostsAndExpenses ██▇▇▆▆▆▆▅▆▅▆▅█▆▆▆▇▆▆▅▅▅▄▃▇▂▁▁815854779765693701666630589621582612588860694688653777674633582577522462379752231178138
us-gaap:ResearchAndDevelopmentExpense ▄▄▄▃▃▃▃▃▃▃▃▃▃▄▄▄▃▄▄▄▄▄▄▄▃█▂▁▁200198178159146141150138123133136143128202177178155210207198189181183177149394876447
us-gaap:GeneralAndAdministrativeExpense █▇▇▆▆▆▆▅▅▆▅▅▅▇▅▅▅▅▄▅▅▄▄▃▃▅▁▁▁109100938877807874657963706992677063725764655551443867211816
us-gaap:SellingAndMarketingExpense ▆▇▇▇▆▆▆▅▅▅▅▅▅█▆▇▇█▆▆▅▆▅▄▃▅▂▁▁221241226240205211193188178189172185169260224236236277208201183203164140106177614532
us-gaap:OperatingIncomeLoss ▆▇▆▇▇█▇▇▇▇▆▆▆▅▅▅▅▅▅▅▅▅▄▅▅▁▅▆▆-71524475932069179741107-38-40-143-78-86-59-67-105-131-146-98-161-149-129-509-63-38-23
us-gaap:InterestExpense ▇▆█████▆▆▆▆▆▅▅▅▅▅▅▅▅▅▅▂▁3326363837373829272626262525242424242524242462NANANANANA
us-gaap:OtherNonoperatingIncomeExpense ▆▇▇█▇▇▇▆▇█▇▁█████▇▇▇█▇▆▇▇▇▇▇▇-7-20700-2-50101-487666641090-810-20-1-1
us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax ▂█▁▅▅▅▅▃▆▅▆▆▆▄▅▄▆▅▅▆▃▅▅▅▅▅▅▅▅-6150-7000-1-7-351169148-20-2-1310-7-210-33-8-1000000
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest ▆█▆▇▇█▇▇▇▇▆▅▅▄▅▅▅▅▅▄▄▅▄▅▅▁▅-1515847879620687656393-17-113-58-162-96-104-77-86-128-156-161-121-175-150-131-514-64NANA
us-gaap:IncomeTaxExpenseBenefit ███▁▇▇▃██████████████████████-73911-1031-94-48-701-3422333462233-19030-51-3000
us-gaap:ProfitLoss ▁▂▁█▂▃▆▂▁-811836111919025578910060NANANANANANANANANANANANANANANANANANANANA
us-gaap:ComprehensiveIncomeNetOfTax ▃▄▃█▄▄▇▃▃▄▃▃▃▂▃▃▃▃▃▃▂▃▂▃▃▁▃▃▃-95164-321129199253782667096-11-101-53-189-104-121-64-101-133-126-195-134-176-144-132-511-64-42-27
us-gaap:NetIncomeLoss ▃▄▃█▄▄▇▄▃▄▃▃▃▂▃▃▃▃▃▃▂▃▂▃▃▁▃▃▃-81183611191902557891006091-21-116-61-167-102-107-79-90-131-136-162-125-175-144-132-511-64-42-27
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
us-gaap:Assets █▇▇▇▆▆▅▅▄▄▄▃▃▃▃▃▃▃▃▃▃▃▂▁▁▁13540127031160012521111451016297468861753974127075696368926870674266166476644262896230564355835448358433563366NANANA
us-gaap:Liabilities █▇▅▇▇▆▆▆▄▄▄▄▄▄▄▄▄▄▄▄▃▃▃▁▁▁47453999318541764056335632933290232923652246223422022265211320591998207420141999195619561923538419416NANANA
us-gaap:LiabilitiesAndStockholdersEquity █▇▇▇▆▆▅▅▄▄▄▃▃▃▃▃▃▃▃▃▃▃▂▁▁▁13540127031160012521111451016297468861753974127075696368926870674266166476644262896230564355835448358433563366NANANA
us-gaap:StockholdersEquity ███▇▆▆▅▄▄▄▃▃▃▃▃▃▃▃▃▃▂▂▂▁▁▁87958704841583447088680564525570521050474829472846904604462945564477436842744231368736263525304629362950NANANA
 us-gaap:StockholdersEquity us-gaap:StatementEquityComponents us-gaap:AdditionalPaidInCapital█▇▆▆▅▄▄▃▁▁8952876386388535840883248225812578317750NANANA7224NANANA6507NANANA5208NANANA3944NANANA
 us-gaap:StockholdersEquity us-gaap:StatementEquityComponents us-gaap:CommonStock▄▄▄▄▄▄▄▄▄▄4000.04000.04000.04000.04000.04000.04000.04000.04000.04000.0NANANA4000.0NANANA3000.0NANANA3000.0NANANA3000.0NANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
us-gaap:AssetsCurrent █▇▆▇▇▆▆▆▄▄▄▄▄▄▃▃▃▃▃▃▃▃▃▁▁▁84677620662475127255711167196540540953215002484046954652447843824388438142634270419442554173246325052574NANANA
us-gaap:Cash ▄▅▄▄▄▄▄█▇▆▆▅█▅▄▅▄▆▃▃▃▁235254234218228229227345315301279251341253224247242300210205198147NANANA164NANANA
us-gaap:CashAndCashEquivalentsAtCarryingValue █▅▅▅▅▅▅▆▄▄▄▃▃▃▃▃▃▃▃▃▄▄▅▃▃▃▁▁▁346317991869218322471894192825441601163815861288119198810119471027911876883160715102252844960841155164118
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 us-gaap:CashAndCashEquivalentsAtCarryingValue us-gaap:InvestmentType us-gaap:MoneyMarketFunds█▂▃▃▄▃▄▆▃▃▃▂▂▂▂▁▁▁▂▁▃▃▂2617465891752107286111541794739981920642539422486288275141337284810882330NANA229NANANA
us-gaap:ShortTermInvestments ▁█42074839NANANANANANANANANANANANANANANANANANANANANA125212151393NANANA
us-gaap:AccountsReceivableNetCurrent ▆█▆▇▆▇▅▅▅▆▄▄▄▆▅▅▅▆▄▄▃▃▂▂▁▁656850684719684788621614611664509524501650590556576638536475415418324287237247NANANA
us-gaap:PrepaidExpenseAndOtherAssetsCurrent ▃▃▃▂▂▂▃██▇▇▇▇▆▆▇▇▇▇▇▆▆▆▁▁▂140130123106111112141264268254234236250226224237235247237234221215201799093NANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
us-gaap:Goodwill ████████▇▇▇▇▇▇▇▇▇▇▇▇▄▃▃▂▁▁12691256124312461228122712271228119011881187118611831185118411861122112211231102702622622514363363NANANA
us-gaap:FiniteLivedIntangibleAssetsNet ▂▂▁▂▁▁▁▂▁▂▂▃▃▄▅▆▆▇▇█▅▅▆▅▃▃6455465040454449444954657995111127128141147156991051151057177NANANA
 us-gaap:FiniteLivedIntangibleAssetsNet us-gaap:FiniteLivedIntangibleAssetsByMajorClass twtr:PatentsAndDevelopedTechnologies▄▃▂▂▁▂▁▂▁▂▂▃▅▆▅▇▆▇▇█▆▆▇▆▂▃6355465040444347424751596875728480888994788189785055NANANA
us-gaap:OtherAssetsNoncurrent ▇▇▆▄▄▄▄▆▅▄▄▄▇▇██▄▃▃▃▂▂▂▂▂▁134134132798185831279278779015115316416189615550474232333217NANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
us-gaap:LiabilitiesCurrent ▃▄▃█▇▇▇▃▂▃▂▂▂▃▂▂▂▂▂▂▂▂▂▂▁▁7108327621733162115161457594528583481494488584470449422506427424394393442370261225NANANA
us-gaap:AccountsPayableCurrent ▇▆▆█▇▆▅▆▅▇▄▄▄▅▄▄▄▅▂▂▂▂▁▁▁▁1831611502061721451161611371701031078612210491901344051485330231927NANANA
us-gaap:OtherAccruedLiabilitiesCurrent ▆█▆█▆▇▇▆▅▅▄▄▄▆▄▄▃▄▅▆▅▃▂▂▁▁11415012615512713812812310110379888611279837091107118995641393028NANANA
us-gaap:TaxesPayableCurrent ▁█▆▆▇▇▆▅▄▆▆▅▄▄▄▃▃▃▃14453537403936332936353029292624252522NANA181711NA9NANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
us-gaap:OtherLiabilitiesNoncurrent ▂▂▂▂▁██▇▇▇▇▇██▇▇▆▅▅▅▄▄▃▃▂▁2824232419676764625962646668626251504544414336332620NANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
us-gaap:StockholdersEquity ███▇▆▆▅▄▄▄▃▃▃▃▃▃▃▃▃▃▂▂▂▁▁▁87958704841583447088680564525570521050474829472846904604462945564477436842744231368736263525304629362950NANANA
 us-gaap:StockholdersEquity us-gaap:StatementEquityComponents us-gaap:AdditionalPaidInCapital█▇▆▆▅▄▄▃▁▁8952876386388535840883248225812578317750NANANA7224NANANA6507NANANA5208NANANA3944NANANA
 us-gaap:StockholdersEquity us-gaap:StatementEquityComponents us-gaap:CommonStock▄▄▄▄▄▄▄▄▄▄4000.04000.04000.04000.04000.04000.04000.04000.04000.04000.0NANANA4000.0NANANA3000.0NANANA3000.0NANANA3000.0NANANA
us-gaap:CommonStockValue ███████████████▁▁▁▁▁▁▁▁▁▁▁4000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.03000.03000.03000.03000.03000.03000.03000.03000.03000.03000.03000.0NANANA
us-gaap:RetainedEarningsAccumulatedDeficit ████▅▄▄▂▁▁▁▁▁▂▂▂▂▃▃▃▄▄▄▅▅▅111-107-143-1263-1454-1709-2498-2598-2671-2762-2741-2625-2550-2383-2280-2173-2093-2003-1871-1734-1572-1447-1271-1126-994NANANA
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax ▁▅▃▆▆▅▅▆▇▇▆▆▅▅▆▆▇▆▆▇▆█████-157-70-115-46-56-65-63-56-22-31-36-46-61-69-46-44-30-45-34-32-42-10-1000NANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities ▂▃▅▅▅▅█▅▂▁▂246277335338351331443321242198239NANANANANANANANANANANANANANANANANANA
us-gaap:NetCashProvidedByUsedInInvestingActivities █▁▇▄▆▄▁▄▅▅▆466-1046314-41329-356-1026-413-258-13585NANANANANANANANANANANANANANANANANANA
us-gaap:NetCashProvidedByUsedInFinancingActivities █▇▁▄▄▄▄█▄▄▄963693-9543-29-11-301048-29-12-27NANANANANANANANANANANANANANANANANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities ▂▃▅▅▅▅█▅▂▁▂246277335338351331443321242198239NANANANANANANANANANANANANANANANANANA
us-gaap:NetIncomeLoss ▃▄▃█▄▄▇▄▃▄▃▃▃▂▃▃▃▃▃▃▂▃▂▃▃▁▃▃▃-81183611191902557891006091-21-116-61-167-102-107-79-90-131-136-162-125-175-144-132-511-64-42-27
us-gaap:ProfitLoss ▁▂▁█▂▃▆▂▁-811836111919025578910060NANANANANANANANANANANANANANANANANANANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
us-gaap:NetCashProvidedByUsedInInvestingActivities █▁▇▄▆▄▁▄▅▅▆466-1046314-41329-356-1026-413-258-13585NANANANANANANANANANANANANANANANANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
us-gaap:NetCashProvidedByUsedInFinancingActivities █▇▁▄▄▄▄█▄▄▄963693-9543-29-11-301048-29-12-27NANANANANANANANANANANANANANANANANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31

Common Stock Value

us-gaap:CommonStockValue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value4000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.03000.03000.03000.03000.03000.03000.03000.03000.03000.03000.03000.0
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Common Stock Par Or Stated Value Per Share

Shares Outstanding

us-gaap:SharesOutstanding



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value784779775772767764760756752746721642642569125
Percentage of SharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:CommonStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value784779775772767764760756752746721694642569125118
Percentage of SharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0108.1100.0100.0100.00.0

Shares Issued

Common Stock Shares Issued

us-gaap:CommonStockSharesIssued



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value784779775772767764760756752746741736729721713706700694681674653642632612589569
Percentage of CommonStockSharesIssued100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Common Stock Shares Outstanding

us-gaap:CommonStockSharesOutstanding



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value784764775772767764760756752746741736729721713706700694681674653642632612589569
Percentage of CommonStockSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Common Stock Shares Authorized

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-31
Value780790785777776772765736730722704698691670655640614595570133132127
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-31
Value780772768764756752747736730722704698691670655640614595570133132127
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-0.010.14999999999999990.051.460.250.34000000000000011.040.130.080.12000000000000002-0.03-0.16-0.09-0.23000000000000004-0.15-0.15-0.12-0.13-0.2-0.21-0.25-0.19999999999999996-0.29-0.24-0.23-2.39-0.48-0.32-0.21
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-0.010.150000000000000130.051.430.250.330000000000000071.020.130.080.12000000000000002-0.03-0.16-0.09-0.23000000000000004-0.15-0.15-0.12-0.13-0.2-0.21-0.25-0.19999999999999996-0.29-0.24-0.23-2.39-0.48-0.32-0.21
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Revenues

us-gaap:Revenues



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value8071007823841786908758710664731589573548717615601594710569502435479361312250242168139114
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProductOrService

twtr:AdvertisingServices



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value682884702727679791649601575644502489473637544534530640512452388432320277226
Percentage of Revenues84.587.885.386.486.387.185.784.686.588.185.385.286.488.988.588.889.390.290.190.089.190.288.688.990.2
Percentage of Revenues84.587.885.386.486.387.185.784.686.588.185.385.286.488.988.588.889.390.290.190.089.190.288.688.990.2
Percentage of Revenues twtr:AdvertisingServices100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

twtr:DataLicensingAndOther



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value1251221211141071171081098987868474797067636956504747413424
Percentage of Revenues15.512.214.713.613.712.914.315.413.511.914.714.813.611.111.511.210.79.89.910.010.99.811.411.19.8
Percentage of Revenues15.512.214.713.613.712.914.315.413.511.914.714.813.611.111.511.210.79.89.910.010.99.811.411.19.8
Percentage of Revenues twtr:DataLicensingAndOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementGeographical

country:JP



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value1311391281331351381301221161069074727973
Percentage of Revenues16.213.815.615.817.215.217.217.217.614.515.412.913.211.112.0
Percentage of Revenues16.213.815.615.817.215.217.217.217.614.515.412.913.211.112.0
Percentage of Revenues country:JP100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

country:US



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value468591465455432505423366346406332334340439373360390463369321288315240210180176124
Percentage of Revenues58.058.756.554.154.955.655.951.652.155.556.358.362.161.360.759.965.665.265.063.966.365.866.567.471.972.974.0
Percentage of Revenues58.058.756.554.154.955.655.951.652.155.556.358.362.161.360.759.965.665.265.063.966.365.866.567.471.972.974.0
Percentage of Revenues country:US100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

twtr:RestOfWorld



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value208276229253218264204221201219166164135198168
Percentage of Revenues25.827.527.930.127.829.126.931.230.329.928.328.724.627.627.3
Percentage of Revenues25.827.527.930.127.829.126.931.230.329.928.328.724.627.627.3
Percentage of Revenues twtr:RestOfWorld100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Cost Of Revenue

us-gaap:CostOfRevenue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value28431428127726426824323022221721021222030522520219821720016714313612410085112625041
Percentage of CostOfRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues35.231.234.133.033.629.532.132.433.529.835.637.140.242.636.633.733.430.735.233.432.928.534.432.034.146.436.936.336.1

Costs And Expenses

us-gaap:CostsAndExpenses



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value815854779765693701666630589621582612588860694688653777674633582577522462379752231178138
Percentage of CostsAndExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues100.984.894.691.088.177.287.988.888.785.098.8106.7107.3120.0112.7114.3109.9109.5118.5126.1133.6120.5144.7148.0151.6310.0137.6127.9120.9

Research And Development Expense

us-gaap:ResearchAndDevelopmentExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value200198178159146141150138123133136143128202177178155210207198189181183177149394876447
Percentage of ResearchAndDevelopmentExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues24.819.721.718.918.615.519.919.518.618.323.124.923.528.228.729.726.229.636.539.643.537.950.756.759.6162.751.846.141.6

General And Administrative Expense

us-gaap:GeneralAndAdministrativeExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value109100938877807874657963706992677063725764655551443867211816
Percentage of GeneralAndAdministrativeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues13.510.011.410.59.88.910.310.49.910.910.712.312.712.910.911.710.610.210.112.915.111.514.214.315.527.812.513.014.9

Selling And Marketing Expense

us-gaap:SellingAndMarketingExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value221241226240205211193188178189172185169260224236236277208201183203164140106177614532
Percentage of SellingAndMarketingExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues27.424.027.528.626.223.325.526.526.825.929.332.330.936.336.439.339.739.036.740.242.142.545.444.942.473.136.332.528.4

Operating Income Loss

us-gaap:OperatingIncomeLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-71524475932069179741107-38-40-143-78-86-59-67-105-131-146-98-161-149-129-509-63-38-23
Percentage of OperatingIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-0.915.25.49.011.922.812.111.211.315.01.2-6.7-7.3-20.0-12.7-14.3-9.9-9.5-18.5-26.1-33.6-20.5-44.7-48.0-51.6-210.0-37.6-27.9-20.9

Interest Expense

us-gaap:InterestExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value3326363837373829272626262525242424242524242462
Percentage of InterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues4.12.64.44.64.74.15.14.24.13.64.54.64.63.54.04.14.23.44.44.95.65.01.70.9

Interest Expense Debt

Other Nonoperating Income Expense

us-gaap:OtherNonoperatingIncomeExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-7-20700-2-50101-487666641090-810-20-1-1
Percentage of OtherNonoperatingIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-1.0-0.2-0.10.9-0.1-0.0-0.3-0.8-0.01.40.3-8.41.30.91.11.11.10.60.3-0.12.10.0-2.20.60.3-1.10.5-0.7-1.3

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

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-6150-7000-1-7-351169148-20-2-1310-7-210-33-8-1000000
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-7.65.1-8.50.1-0.0-0.2-1.0-5.01.70.91.62.51.5-2.9-0.4-2.21.8-1.0-0.42.1-7.7-1.7-0.40.20.00.00.20.1-0.1

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

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value-1515847879620687656393-17-113-58-162-96-104-77-86-128-156-161-121-175-150-131-514-64
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-1.915.75.810.412.322.711.59.39.612.8-3.0-19.7-10.6-22.6-15.6-17.4-13.1-12.2-22.6-31.1-37.1-25.4-48.5-48.1-52.4-212.1-38.1

Income Loss From Continuing Operations Before Income Taxes Domestic

Income Loss From Continuing Operations Before Income Taxes Foreign

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-73911-1031-94-48-701-3422333462233-19030-51-3000
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-0.93.91.4-122.6-12.0-5.4-92.6-4.80.40.30.60.60.60.71.10.40.30.50.6-3.90.10.80.0-1.80.5-1.40.20.60.3

Income Taxes Paid Net

Profit Loss

us-gaap:ProfitLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-811836111919025578910060
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-1.011.84.4133.124.228.1104.114.19.2

Comprehensive Income Net Of Tax

us-gaap:ComprehensiveIncomeNetOfTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-95164-321129199253782667096-11-101-53-189-104-121-64-101-133-126-195-134-176-144-132-511-64-42-27
Percentage of ComprehensiveIncomeNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-11.916.3-3.9134.225.327.8103.29.310.613.2-1.9-17.8-9.8-26.5-17.0-20.1-10.9-14.3-23.4-25.2-44.8-28.0-49.0-46.2-52.8-210.8-38.1-30.2-23.7

Net Income Loss

us-gaap:NetIncomeLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-81183611191902557891006091-21-116-61-167-102-107-79-90-131-136-162-125-175-144-132-511-64-42-27
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-1.011.84.4133.124.228.1104.114.19.212.4-3.6-20.3-11.2-23.3-16.7-17.8-13.4-12.7-23.1-27.2-37.3-26.2-48.6-46.3-52.8-210.8-38.3-30.3-23.6

us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-811836111919025578910060
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-1.011.84.4133.124.228.1104.114.19.2
Percentage of Revenues us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.0

Assets

us-gaap:Assets



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value13540127031160012521111451016297468861753974127075696368926870674266166476644262896230564355835448358433563366
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Liabilities

us-gaap:Liabilities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value47453999318541764056335632933290232923652246223422022265211320591998207420141999195619561923538419416
Percentage of Liabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets35.031.527.533.436.433.033.837.130.931.931.732.132.033.031.331.130.932.232.032.134.735.035.315.012.512.4

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value13540127031160012521111451016297468861753974127075696368926870674266166476644262896230564355835448358433563366
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Stockholders Equity

us-gaap:StockholdersEquity



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-31
Value87958704841583447088680564525570521050474829472846904604462945564477436842744231368736263525304629362950-248
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets65.068.572.566.663.667.066.262.969.168.168.367.968.067.068.768.969.167.868.067.965.365.064.785.087.587.60.0

us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value-157-70-115-46-56-65-63-56-22-31-69-45-10000
Percentage of StockholdersEquity-1.8-0.8-1.4-0.6-0.8-1.0-1.0-1.0-0.4-0.6-1.5-1.0-0.3-0.00.30.0
Percentage of Assets-1.2-0.6-1.0-0.4-0.5-0.6-0.6-0.6-0.3-0.4-1.0-0.7-0.2-0.00.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value8952876386388535840883248225812578317750722465075208394410168
Percentage of StockholdersEquity101.8100.7102.7102.3118.6122.3127.5145.9150.3153.6156.9149.0143.6133.7-41.00.0
Percentage of Assets66.169.074.568.275.481.984.491.7103.9104.6105.2101.093.3117.20.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value4000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.03000.03000.03000.01000.01000.0
Percentage of StockholdersEquity0.00.00.00.00.00.00.00.00.00.00.00.00.00.0-0.00.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value111-107-143-1263-1454-1709-2498-2598-2671-2550-2093-1572-994-349-269
Percentage of StockholdersEquity0.00.1-1.3-1.7-17.8-21.4-26.5-44.9-49.9-52.9-55.4-47.9-43.4-33.7140.80.0
Percentage of Assets0.00.1-0.9-1.1-11.3-14.3-17.5-28.2-34.5-36.0-37.1-32.5-28.2-29.50.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Assets Current

us-gaap:AssetsCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value84677620662475127255711167196540540953215002484046954652447843824388438142634270419442554173246325052574
Percentage of AssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets62.560.057.160.065.170.068.973.871.771.870.769.568.167.766.466.267.868.067.868.574.376.276.668.774.676.5

Cash

us-gaap:Cash



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value235254234218228229227345315301279251341253224247242300210205198147164
Percentage of Cash100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.72.02.01.72.02.32.33.94.24.14.03.64.93.73.33.73.74.73.33.33.52.64.9

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-31
Value346317991869218322471894192825441601163815861288119198810119471027911876883160715102252844960841155164118203218
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets25.614.216.117.420.218.619.828.721.222.122.418.517.314.415.014.315.914.113.914.228.527.141.323.628.625.00.00.00.00.00.0

us-gaap:InvestmentType

twtr:CorporateNotesCommercialPaperAndCertificatesOfDeposit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value61010797431212946803546379485355356366273299469
Percentage of CashAndCashEquivalentsAtCarryingValue17.660.039.855.542.142.428.314.930.321.722.528.422.930.351.5
Percentage of Assets4.58.56.49.78.57.95.64.36.44.85.05.34.04.47.3
Percentage of Assets twtr:CorporateNotesCommercialPaperAndCertificatesOfDeposit0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:MoneyMarketFunds



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302013-12-31
Value2617465891752107286111541794739981920642539422486288275141337284810882330229
Percentage of CashAndCashEquivalentsAtCarryingValue75.625.947.734.547.745.559.970.546.259.958.049.945.242.748.130.526.815.538.532.250.458.414.727.3
Percentage of Assets19.33.77.76.09.68.511.920.39.813.213.09.27.86.17.24.44.32.25.44.614.415.86.16.8
Percentage of Assets us-gaap:MoneyMarketFunds0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Short Term Investments

us-gaap:ShortTermInvestments



Period End2020-03-312019-12-312014-06-302014-03-312013-12-31
Value42074839125212151393
Percentage of ShortTermInvestments100.0100.0100.0100.0100.0
Percentage of Assets31.138.134.936.241.4

Accounts Receivable Net Current

us-gaap:AccountsReceivableNetCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value656850684719684788621614611664509524501650590556576638536475415418324287237247
Percentage of AccountsReceivableNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.86.75.95.76.17.86.46.98.19.07.27.57.39.58.88.48.99.98.57.67.47.56.08.07.17.3

Prepaid Expense And Other Assets Current

us-gaap:PrepaidExpenseAndOtherAssetsCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value140130123106111112141264268254234236250226224237235247237234221215201799093
Percentage of PrepaidExpenseAndOtherAssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.01.01.10.81.01.11.43.03.63.43.33.43.63.33.33.63.63.83.83.83.93.93.72.22.72.8

Property Plant And Equipment Gross

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

Property Plant And Equipment Net

Long Term Investments

Goodwill

us-gaap:Goodwill



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-31
Value1269125612431246122812271227122811901188118711861183118511841186112211221123110270262262251436336368
Percentage of Goodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets9.49.910.710.011.012.112.613.915.816.016.817.017.217.317.617.917.317.417.917.712.511.211.414.410.810.80.0

us-gaap:BusinessAcquisition

us-gaap:SeriesOfIndividuallyImmaterialBusinessAcquisitions



Period End2020-03-312019-12-312014-09-302014-06-30
Value182715546
Percentage of Goodwill1.52.224.99.0
Percentage of Assets0.10.22.81.3
Percentage of Assets us-gaap:SeriesOfIndividuallyImmaterialBusinessAcquisitions0.00.00.00.0

Intangible Assets Net Excluding Goodwill

Finite Lived Intangible Assets Net

us-gaap:FiniteLivedIntangibleAssetsNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value6455465040454449444954657995111127128141147156991051151057177
Percentage of FiniteLivedIntangibleAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.50.40.40.40.40.40.50.60.60.70.80.91.21.41.71.92.02.22.32.51.81.92.12.92.12.3

us-gaap:FiniteLivedIntangibleAssetsByMajorClass

twtr:PatentsAndDevelopedTechnologies



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value6355465040444347424751596875728480888994788189785055
Percentage of FiniteLivedIntangibleAssetsNet97.8100.0100.0100.099.698.697.696.895.595.094.691.786.779.165.166.262.862.761.060.179.378.077.474.071.371.0
Percentage of Assets0.50.40.40.40.40.40.40.50.60.60.70.91.01.11.11.31.21.41.41.51.41.51.62.21.51.6
Percentage of Assets twtr:PatentsAndDevelopedTechnologies0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OtherIntangibleAssets



Period End2020-03-312016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value10012000001
Percentage of FiniteLivedIntangibleAssetsNet2.20.20.60.91.30.30.40.50.71.21.3
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:OtherIntangibleAssets0.00.00.00.00.00.00.00.00.00.00.0

Deferred Tax Assets Liabilities Net

Other Assets Noncurrent

us-gaap:OtherAssetsNoncurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value134134132798185831279278779015115316416189615550474232333217
Percentage of OtherAssetsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.01.11.10.60.70.80.91.41.21.11.11.32.22.22.42.41.41.00.90.80.80.80.60.91.00.5

Liabilities Current

us-gaap:LiabilitiesCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value7108327621733162115161457594528583481494488584470449422506427424394393442370261225
Percentage of LiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets5.26.66.613.814.614.915.06.77.07.96.87.17.18.57.06.86.57.96.86.87.07.18.110.37.86.7

Accounts Payable Current

us-gaap:AccountsPayableCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value1831611502061721451161611371701031078612210491901344051485330231927
Percentage of AccountsPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.41.31.31.61.51.41.21.81.82.31.51.51.31.81.51.41.42.10.60.80.91.00.60.60.60.8

Other Accrued Liabilities Current

us-gaap:OtherAccruedLiabilitiesCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value11415012615512713812812310110379888611279837091107118995641393028
Percentage of OtherAccruedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.81.21.11.21.11.41.31.41.31.41.11.31.31.61.21.31.11.41.71.91.81.00.81.10.90.8

Taxes Payable Current

us-gaap:TaxesPayableCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-312014-09-302014-06-302013-12-31
Value144535374039363329363530292926242525221817119
Percentage of TaxesPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.10.40.30.30.40.40.40.40.40.50.50.40.40.40.40.40.40.40.40.30.30.30.3

Accrued Income Taxes Current

Other Liabilities Noncurrent

us-gaap:OtherLiabilitiesNoncurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value2824232419676764625962646668626251504544414336332620
Percentage of OtherLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.20.20.20.20.20.70.70.70.80.80.90.91.01.00.91.00.80.80.70.70.70.80.70.90.80.6

Stockholders Equity

us-gaap:StockholdersEquity



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-31
Value87958704841583447088680564525570521050474829472846904604462945564477436842744231368736263525304629362950-248
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets65.068.572.566.663.667.066.262.969.168.168.367.968.067.068.768.969.167.868.067.965.365.064.785.087.587.60.0

us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value-157-70-115-46-56-65-63-56-22-31-69-45-10000
Percentage of StockholdersEquity-1.8-0.8-1.4-0.6-0.8-1.0-1.0-1.0-0.4-0.6-1.5-1.0-0.3-0.00.30.0
Percentage of Assets-1.2-0.6-1.0-0.4-0.5-0.6-0.6-0.6-0.3-0.4-1.0-0.7-0.2-0.00.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value8952876386388535840883248225812578317750722465075208394410168
Percentage of StockholdersEquity101.8100.7102.7102.3118.6122.3127.5145.9150.3153.6156.9149.0143.6133.7-41.00.0
Percentage of Assets66.169.074.568.275.481.984.491.7103.9104.6105.2101.093.3117.20.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value4000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.03000.03000.03000.01000.01000.0
Percentage of StockholdersEquity0.00.00.00.00.00.00.00.00.00.00.00.00.00.0-0.00.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value111-107-143-1263-1454-1709-2498-2598-2671-2550-2093-1572-994-349-269
Percentage of StockholdersEquity0.00.1-1.3-1.7-17.8-21.4-26.5-44.9-49.9-52.9-55.4-47.9-43.4-33.7140.80.0
Percentage of Assets0.00.1-0.9-1.1-11.3-14.3-17.5-28.2-34.5-36.0-37.1-32.5-28.2-29.50.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Common Stock Value

us-gaap:CommonStockValue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value4000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.04000.03000.03000.03000.03000.03000.03000.03000.03000.03000.03000.03000.0
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Retained Earnings Accumulated Deficit

us-gaap:RetainedEarningsAccumulatedDeficit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value111-107-143-1263-1454-1709-2498-2598-2671-2762-2741-2625-2550-2383-2280-2173-2093-2003-1871-1734-1572-1447-1271-1126-994
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.1-0.9-1.1-11.3-14.3-17.5-28.2-34.5-36.0-39.0-39.4-38.1-37.1-35.3-34.5-33.6-32.5-31.9-30.0-30.7-28.2-26.6-35.5-33.6-29.5

Accumulated Other Comprehensive Income Loss Net Of Tax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value-157-70-115-46-56-65-63-56-22-31-36-46-61-69-46-44-30-45-34-32-42-10-1000
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-1.2-0.6-1.0-0.4-0.5-0.6-0.6-0.6-0.3-0.4-0.5-0.7-0.9-1.0-0.7-0.7-0.5-0.7-0.5-0.5-0.8-0.2-0.00.0-0.0-0.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value246277335338351331443321242198239
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues30.627.540.740.344.736.558.645.236.527.140.7

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value466-1046314-41329-356-1026-413-258-13585
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues57.7-103.938.2-49.23.7-39.2-135.4-58.2-39.0-18.514.4

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value963693-9543-29-11-301048-29-12-27
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues119.468.8-115.80.5-3.7-1.2-4.0147.6-4.4-1.7-4.6

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value246277335338351331443321242198239
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues30.627.540.740.344.736.558.645.236.527.140.7

Net Income Loss

us-gaap:NetIncomeLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-81183611191902557891006091-21-116-61-167-102-107-79-90-131-136-162-125-175-144-132-511-64-42-27
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-1.011.84.4133.124.228.1104.114.19.212.4-3.6-20.3-11.2-23.3-16.7-17.8-13.4-12.7-23.1-27.2-37.3-26.2-48.6-46.3-52.8-210.8-38.3-30.3-23.6

us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-811836111919025578910060
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-1.011.84.4133.124.228.1104.114.19.2
Percentage of Revenues us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.0

Profit Loss

us-gaap:ProfitLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-811836111919025578910060
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-1.011.84.4133.124.228.1104.114.19.2

Depreciation Depletion And Amortization

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value466-1046314-41329-356-1026-413-258-13585
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues57.7-103.938.2-49.23.7-39.2-135.4-58.2-39.0-18.514.4

Payments To Acquire Investments

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value963693-9543-29-11-301048-29-12-27
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues119.468.8-115.80.5-3.7-1.2-4.0147.6-4.4-1.7-4.6

Debt Instrument Interest Rate Stated Percentage

Effective Income Tax Rate Continuing Operations

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

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber



Period End2020-03-312019-12-312018-12-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value33345558899112022273942
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

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

us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod

us-gaap:RestrictedStock



Period End2020-03-312019-12-312016-12-312016-09-302015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value0000001001
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod100.0100.0100.00.0100.00.0100.0100.0100.0100.0

us-gaap:RestrictedStockUnitsRSU



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value232381312172817633362361858
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod519.01950.90.00.00.00.00.00.00.00.00.00.00.01517.80.00.00.0657500.00.0214.0705.5169100.0617.60.00.0

Share Based Compensation

Deferred Tax Liabilities

Deferred Tax Assets Net

Unrecognized Tax Benefits

Deferred Tax Assets Valuation Allowance

Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions

Operating Lease Right Of Use Asset

us-gaap:OperatingLeaseRightOfUseAsset



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value6666976636947070
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.00.0

Cash And Cash Equivalents Period Increase Decrease

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value34921827189722102273192119562572163016731622132412291027945
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

twtr:ChangesInAccruedPropertyAndEquipmentPurchases



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value38-11-5033435-3610-239-21-64-2-312-18-13-312
Percentage of ChangesInAccruedPropertyAndEquipmentPurchases100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

twtr:DebtInstrumentCouponInterestExpense



Period End2020-03-312019-03-31
Value103
Percentage of DebtInstrumentCouponInterestExpense100.0100.0

twtr:DeferredTaxAssetIncreaseDecreaseDueToIntraEntityIntangibleAssetTransfer



Period End2020-03-312019-03-31
Value0124
Percentage of DeferredTaxAssetIncreaseDecreaseDueToIntraEntityIntangibleAssetTransfer0.0100.0

twtr:IncreaseDecreaseInOperatingLeaseLiabilities



Period End2020-03-312019-03-31
Value-39-29
Percentage of IncreaseDecreaseInOperatingLeaseLiabilities100.0100.0

twtr:IncreaseDecreaseInOperatingLeaseRightOfUseAssets



Period End2020-03-312019-03-31
Value-38-35
Percentage of IncreaseDecreaseInOperatingLeaseRightOfUseAssets100.0100.0

twtr:IncrementalWeightedAverageSharesAttributableToDilutedEffectOfOtherShares



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value002110222
Percentage of IncrementalWeightedAverageSharesAttributableToDilutedEffectOfOtherShares0.0100.0100.0100.0100.0100.0100.0100.0100.0

twtr:IncrementalWeightedAverageSharesAttributableToDilutedEffectOfRestrictedStockUnits



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0012119-1141513
Percentage of IncrementalWeightedAverageSharesAttributableToDilutedEffectOfRestrictedStockUnits0.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PlanName

twtr:OutstandingSharesOfCommonStockPercentageForIncrease

twtr:EquityIncentivePlansTwoThousandAndThirteen



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value0.050.00.00.00.050.00.00.00.050.00.00.00.050.00.00.00.050.00.00.00.05
Percentage of OutstandingSharesOfCommonStockPercentageForIncrease100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.0

us-gaap:AwardType

twtr:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodPercentageOfTargetLevel

twtr:TotalShareholderReturnRestrictedStockUnits



Period End2020-03-312019-12-312019-09-302019-06-302019-03-31
Value1.160.00.00.01.32
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodPercentageOfTargetLevel100.00.00.00.0100.0

us-gaap:PerformanceShares



Period End2020-03-312019-12-312019-09-302019-06-302019-03-31
Value1.00.00.00.01.93
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodPercentageOfTargetLevel86.20.00.00.0146.2

us-gaap:StatementEquityComponents

twtr:StockIssuedDuringPeriodSharesRestrictedStockUnitsVesting

us-gaap:CommonStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value433333335
Percentage of StockIssuedDuringPeriodSharesRestrictedStockUnitsVesting100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:AdditionalPaidInCapital



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value1123-3-9-356-1-7
Percentage of AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt

twtr:ConvertibleNotesDueAtTwoThousandTwentyFive, us-gaap:ConvertibleDebt



Period End2020-03-31
Value1
Percentage of AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt100.0

us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital



Period End2020-03-312018-06-30
Value92252
Percentage of AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt5122.70.0

us-gaap:StatementEquityComponents

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue

us-gaap:AdditionalPaidInCapital



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value10611010610493891028985
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AllocatedShareBasedCompensationExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value9710198948381917973
Percentage of AllocatedShareBasedCompensationExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncomeStatementLocation

us-gaap:CostOfSales



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value565554434
Percentage of AllocatedShareBasedCompensationExpense5.95.95.86.36.06.04.64.26.6

us-gaap:GeneralAndAdministrativeExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value121316161414141211
Percentage of AllocatedShareBasedCompensationExpense13.013.816.317.116.918.015.916.216.0

us-gaap:ResearchAndDevelopmentExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value605953504643534541
Percentage of AllocatedShareBasedCompensationExpense61.958.853.753.155.453.258.156.757.3

us-gaap:SellingAndMarketingExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value182123221818191814
Percentage of AllocatedShareBasedCompensationExpense19.221.424.123.521.622.721.422.920.2

us-gaap:AmortizationOfDebtDiscountPremium



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value212030313031302320202020191918181818171716162
Percentage of AmortizationOfDebtDiscountPremium100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AmortizationOfFinancingCostsAndDiscounts



Period End2020-03-312019-03-31
Value2333
Percentage of AmortizationOfFinancingCostsAndDiscounts100.0100.0

us-gaap:AmortizationOfIntangibleAssets



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value543344444411141627161212151414101011865333
Percentage of AmortizationOfIntangibleAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

twtr:RestrictedStockAndOther



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-31
Value423310066681099109
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestrictedStockUnitsRSU



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-31
Value291210331323738545866465561748183411611
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount645.174.275.4331.0219.4391.5569.4524.3592.5610.5645.6562.4733.5479.3533.5630.60.00.00.00.00.00.0

us-gaap:StockOption



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-31
Value300001555899171818222739424445
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount66.00.10.124.71.2401.381.682.793.0105.789.3108.7178.9176.3185.50.00.00.00.00.00.0

us-gaap:Warrant



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-03-312013-09-302013-06-302013-03-31
Value32444444444424242424242424242424230000
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount702.01671.21252.61357.02483.55267.17848.1396.7379.5385.6287.3232.7266.8250.3234.2249.80.00.00.00.00.0

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value1676-76-303-70352-35-613956-455029790197
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:DebtInstrumentRedemptionPricePercentage

twtr:ConvertibleNotesDueAtTwoThousandTwentyFive, us-gaap:ConvertibleDebt



Period End2020-03-31
Value1.0
Percentage of DebtInstrumentRedemptionPricePercentage100.0

us-gaap:DeferredIncomeTaxExpenseBenefit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-7155-1034-110-778-2200-5000-4000-30-22-10-2-70-8000
Percentage of DeferredIncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DepreciationAndAmortization



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value1201161191151131101111059692971031021191009388878176676260453933292522
Percentage of DepreciationAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-116-8700-2-1411044
Percentage of EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PropertyPlantAndEquipmentByType

us-gaap:EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount

us-gaap:SoftwareDevelopment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value8899971010129121416132017221181316141086
Percentage of EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeasePrincipalPayments



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value91315181920222324
Percentage of FinanceLeasePrincipalPayments100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GainLossOnForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value-117-9-40-61-3-2325-360-61-33
Percentage of GainLossOnForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ImpairmentOfInvestments



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value80010000
Percentage of ImpairmentOfInvestments100.00.00.0100.00.00.00.00.0

us-gaap:IncomeStatementLocation

us-gaap:OtherExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value80010003007
Percentage of ImpairmentOfInvestments100.00.00.0103.20.00.00.00.00.00.00.0

us-gaap:IncreaseDecreaseInAccountsPayable



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-1415-78-1221-510-2622023-3619100-37851-9-11231016-62-4
Percentage of IncreaseDecreaseInAccountsPayable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInAccountsReceivable



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-168160-2636-1031661114-61152-2220-1537435-20-6511161394994046-87722100
Percentage of IncreaseDecreaseInAccountsReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-139146319-77362255-20385-14-571031524-37-5253312496227311381
Percentage of IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value6113-17-40-26-23-123-22218-6-2224-4-194123745224123-13309-213
Percentage of IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtInstrument

us-gaap:IncrementalCommonSharesAttributableToConversionOfDebtSecurities

twtr:ConvertibleNotesDueAtTwoThousandTwentyFive



Period End2020-03-31
Value24
Percentage of IncrementalCommonSharesAttributableToConversionOfDebtSecurities100.0

twtr:ConvertibleNotesDueAtTwoThousandTwentyFour



Period End2020-03-31
Value20
Percentage of IncrementalCommonSharesAttributableToConversionOfDebtSecurities83.4

twtr:ConvertibleNotesDueAtTwoThousandTwentyOne



Period End2020-03-31
Value12
Percentage of IncrementalCommonSharesAttributableToConversionOfDebtSecurities51.0

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value002220222
Percentage of IncrementalCommonSharesAttributableToShareBasedPaymentArrangements0.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InvestmentIncomeNonoperating



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value3233404240373621161312108
Percentage of InvestmentIncomeNonoperating100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-26-5198001-1-1000-2004-300000000000
Percentage of OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value-8745-6898-2-6-349510147-22-1-1415
Percentage of OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-8745-6898-2-6-349
Percentage of OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherNoncashIncomeExpense



Period End2020-03-312019-03-312015-06-302015-03-312014-06-302014-03-31
Value8-311-6-22
Percentage of OtherNoncashIncomeExpense100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsForProceedsFromOtherInvestingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value12119-11020010001001-4519002
Percentage of PaymentsForProceedsFromOtherInvestingActivities100.0100.0100.0100.00.0100.00.0100.0100.0100.0100.00.0100.00.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsOfDebtIssuanceCosts



Period End2020-03-312019-12-312019-03-312018-12-31
Value14800
Percentage of PaymentsOfDebtIssuanceCosts100.0100.00.0100.0

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value112339361712134442220600115
Percentage of PaymentsRelatedToTaxWithholdingForShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0

us-gaap:PaymentsToAcquireAvailableForSaleSecuritiesDebt



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value1233185794813561635128020631158831
Percentage of PaymentsToAcquireAvailableForSaleSecuritiesDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302016-12-312016-09-302015-12-312015-09-302014-12-312014-09-30
Value14902000140025030
Percentage of PaymentsToAcquireBusinessesNetOfCashAcquired100.0100.00.0100.00.00.0100.0100.00.00.0100.00.0100.0

us-gaap:PaymentsToAcquireProductiveAssets



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-30
Value1221511701358374120196934234433948723959801069267683844492919
Percentage of PaymentsToAcquireProductiveAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromConvertibleDebt



Period End2020-03-312019-12-312019-03-312018-12-31
Value1000000
Percentage of ProceedsFromConvertibleDebt100.00.00.00.0

us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:ProceedsFromDebtNetOfIssuanceCosts

twtr:ConvertibleNotesDueAtTwoThousandTwentyFive, us-gaap:ConvertibleDebt



Period End2020-03-31
Value985
Percentage of ProceedsFromDebtNetOfIssuanceCosts100.0

us-gaap:ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities



Period End2020-03-312019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value112517119821134955660555562802659485801636595596883629712506512532477557915070
Percentage of ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromSaleOfAvailableForSaleSecuritiesDebt



Period End2020-03-312019-12-312019-03-312018-12-31
Value7221933416
Percentage of ProceedsFromSaleOfAvailableForSaleSecuritiesDebt100.0100.0100.0100.0

us-gaap:ProceedsFromSaleOfProductiveAssets



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value11111432101
Percentage of ProceedsFromSaleOfProductiveAssets100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0

us-gaap:ProceedsFromStockOptionsExercised



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value00000000210060032813339141
Percentage of ProceedsFromStockOptionsExercised100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProvisionForDoubtfulAccounts



Period End2020-03-312019-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value1405-20211000000
Percentage of ProvisionForDoubtfulAccounts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RelatedPartyTransactionOtherRevenuesFromTransactionsWithRelatedParty



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value5555556666655
Percentage of RelatedPartyTransactionOtherRevenuesFromTransactionsWithRelatedParty100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability



Period End2020-03-312019-03-31
Value136
Percentage of RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability100.0100.0

us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue

us-gaap:RestrictedStock



Period End2020-03-312019-12-312019-09-302018-12-312018-09-302016-12-312016-09-302015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value39.05-2.5399999999999990.00.00.00.289999999999999150.00.00.0-3.71999999999999943.720.0-1.4299999999999997
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue100.0100.00.00.00.0100.00.00.00.0100.0100.00.0100.0

us-gaap:RestrictedStockUnitsRSU



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value32.780.369999999999997441.42999999999999971.429999999999999730.50.280000000000001140.8799999999999991.22000000000000060.27999999999999936-0.859999999999999416.090.26999999999999780.6100000000000012-0.0800000000000000715.35-5.539999999999999-2.8900000000000006-3.79999999999999747.68-0.62999999999999550.7299999999999969-5.45000000000000353.84
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue83.9-14.60.00.00.00.00.00.00.00.00.093.10.00.00.00.00.0102.2109.10.0-51.00.00.0

us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod

twtr:TotalShareholderReturnRestrictedStockUnits



Period End2020-03-312019-12-312019-09-302019-06-302019-03-31
Value381000.00.00.00.0122000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod100.00.00.00.0100.0

us-gaap:PerformanceShares



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value646000.00.00.00.0752000.00.00.0-313.0646313.00.00.00.0117808.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod169.60.00.00.0616.40.00.00.00.00.00.00.00.0

us-gaap:RestrictedStockUnitsRSU



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value33333333445556774566671044
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod839.40.00.00.02471.30.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue

twtr:TotalShareholderReturnRestrictedStockUnits



Period End2020-03-312019-12-312019-09-302019-06-302019-03-31
Value130003
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue100.00.00.00.0100.0

us-gaap:PerformanceShares



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value2200023002020
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue169.40.00.00.0627.00.00.00.00.0

us-gaap:RestrictedStockUnitsRSU



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value103101133122961071269511683888610012912411992147198248256-560470260956
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue775.40.00.00.02608.10.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue

twtr:TotalShareholderReturnRestrictedStockUnits



Period End2020-03-312019-12-312019-09-302019-06-302019-03-31
Value54.970.00.00.013.02
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue100.00.00.00.0100.0

us-gaap:PerformanceShares



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value31.520.00.00.035.550.00.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue57.30.00.00.0273.00.00.0

us-gaap:RestrictedStockUnitsRSU



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value25.970.049999999999997160.179999999999999720.3900000000000005724.12-0.05000000000000071-0.119999999999997440.0799999999999983-0.03999999999999915-0.1099999999999994322.4-0.5300000000000011-1.2699999999999996-4.44999999999999929.950.059999999999998720.6799999999999997-0.37999999999999927.221.96000000000000091.11999999999999741.830000000000001816.43
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue47.20.00.00.0185.30.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:StatementEquityComponents

us-gaap:SharesPaidForTaxWithholdingForShareBasedCompensation

us-gaap:CommonStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value337000.092000.091000.091000.0-305000.094000.0196000.060000.0-260000.0
Percentage of SharesPaidForTaxWithholdingForShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0

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Period End2020-03-312019-12-312019-03-312018-12-312016-12-312016-09-302015-12-312015-09-302014-12-312014-09-302013-12-312013-09-30
Value100000000962183
Percentage of StockIssued1100.00.00.00.0100.00.00.00.00.0100.0100.0100.0

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Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value181000.014000.0152000.0123000.072000.0117000.083000.0129000.0305000.0
Percentage of StockIssuedDuringPeriodSharesStockOptionsExercised100.0100.0100.0100.0100.0100.0100.0100.0100.0

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Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value000000002
Percentage of StockIssuedDuringPeriodValueStockOptionsExercised100.0100.0100.0100.0100.0100.0100.0100.0100.0

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Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value78217747707662759754750274073472637117046976678663648862460457959140138132
Percentage of WeightedAverageNumberOfSharesIssuedBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:WeightedAverageNumberOfSharesRestrictedStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value10122022203440656087809880665
Percentage of WeightedAverageNumberOfSharesRestrictedStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

twtr:AccruedPublisherContentAndAdNetworkCosts



Period End2020-03-312019-12-312019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value2845393633303429322221304423
Percentage of AccruedPublisherContentAndAdNetworkCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

twtr:InvestmentOwnedAtCarryingValue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value76777722252527
Percentage of InvestmentOwnedAtCarryingValue100.0100.0100.0100.0100.0100.0100.0

twtr:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization



Period End2020-03-312019-12-31
Value16141550
Percentage of PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization100.0100.0

twtr:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization



Period End2020-03-312019-12-31
Value10811031
Percentage of PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization100.0100.0

us-gaap:StatementGeographical

country:US



Period End2020-03-312019-12-31
Value1053999
Percentage of PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization97.496.9

us-gaap:NonUs



Period End2020-03-312019-12-31
Value2832
Percentage of PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization2.63.1

twtr:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization



Period End2020-03-312019-12-31
Value26952582
Percentage of PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization100.0100.0

us-gaap:PropertyPlantAndEquipmentByType

twtr:FurnitureAndLeaseholdImprovements



Period End2020-03-312019-12-31
Value351347
Percentage of PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization13.013.5

us-gaap:ConstructionInProgress



Period End2020-03-312019-12-31
Value97100
Percentage of PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization3.63.9

us-gaap:SoftwareAndSoftwareDevelopmentCosts



Period End2020-03-312019-12-31
Value714688
Percentage of PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization26.526.7

us-gaap:TechnologyEquipment



Period End2020-03-312019-12-31
Value15321445
Percentage of PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization56.856.0

us-gaap:AccruedLiabilitiesCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value370500445428358405380351304327296307322380284277250283294274239228301247151110
Percentage of AccruedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccruedProfessionalFeesCurrent



Period End2020-03-312019-12-312019-09-302018-12-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value41384223131010107
Percentage of AccruedProfessionalFeesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AdditionalPaidInCapitalCommonStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302013-12-31
Value895287638638853584088324822581257831775076287517737672247058688166816507631161355464520849733944
Percentage of AdditionalPaidInCapitalCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value152323344455777887848754222
Percentage of AllowanceForDoubtfulAccountsReceivableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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us-gaap:AssetsFairValueDisclosure

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Period End2020-03-312019-12-312019-09-302019-06-302018-12-312017-12-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value26174658917528619814354862882951711123540622687739
Percentage of AssetsFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302018-12-312017-12-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value4819592346935720511931213087295330533042303023501479122112651330
Percentage of AssetsFairValueDisclosure184.11273.4526.6760.5594.5318.0709.5606.81057.31030.21765.3209.2273.6196.2184.1179.9

us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value74376388558564726233598057325317421541033981383136033522344033423337320134742020184419532069
Percentage of AssetsFairValueDisclosure284.11373.4626.6860.50.0694.50.00.00.0418.00.00.00.0809.5706.81157.31130.21865.3309.2373.6296.2284.1279.9

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value9141514500
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax100.0100.0100.0100.0100.0100.0100.0

us-gaap:InvestmentType

twtr:CorporateNotesCommercialPaperAndCertificatesOfDeposit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value7131312500
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax82.392.689.387.890.794.635.1

us-gaap:USTreasuryAndGovernmentShorttermDebtSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value1111000
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax17.77.410.712.29.35.464.9

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value22000143
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax100.0100.0100.0100.0100.0100.0100.0

us-gaap:InvestmentType

twtr:CorporateNotesCommercialPaperAndCertificatesOfDeposit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value22000041
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax100.229.148.985.975.487.140.4

us-gaap:USTreasuryAndGovernmentShorttermDebtSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value0000002
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax0.070.951.114.124.612.959.6

us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value4219482639314489420743192768
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis100.0100.0100.0100.0100.0100.0100.0

us-gaap:InvestmentType

twtr:CorporateNotesCommercialPaperAndCertificatesOfDeposit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value3972416634283674341032651701
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis94.186.387.281.881.175.661.5

us-gaap:USTreasuryAndGovernmentShorttermDebtSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value24766050381579710531067
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis5.913.712.818.218.924.438.5

us-gaap:AvailableForSaleSecuritiesDebtSecuritiesCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value42064839394645034212431440273116292727642671279127522785265226402548258326122111
Percentage of AvailableForSaleSecuritiesDebtSecuritiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:InvestmentType

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring, us-gaap:CertificatesOfDeposit



Period End2020-03-312019-12-312019-09-302019-06-302018-12-312017-12-312016-12-31
Value388474466508813654600
Percentage of AvailableForSaleSecuritiesDebtSecuritiesCurrent9.29.811.811.318.923.721.6

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



Period End2020-03-312019-12-312019-09-302019-06-302018-12-312017-12-312016-12-31
Value10511236808838733299311
Percentage of AvailableForSaleSecuritiesDebtSecuritiesCurrent25.025.520.518.617.010.811.2

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring, us-gaap:CorporateNoteSecurities



Period End2020-03-312019-12-312019-09-302019-06-302018-12-312017-12-312016-12-31
Value25172468216723391713745689
Percentage of AvailableForSaleSecuritiesDebtSecuritiesCurrent59.851.054.951.939.727.024.8

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring, us-gaap:USGovernmentCorporationsAndAgenciesSecurities



Period End2020-03-312019-12-312019-09-302019-06-302018-12-31
Value248660504816759
Percentage of AvailableForSaleSecuritiesDebtSecuritiesCurrent5.913.712.818.117.6

us-gaap:FairValueByMeasurementFrequency, us-gaap:InvestmentType

us-gaap:FairValueMeasurementsRecurring, us-gaap:CertificatesOfDeposit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value388474466508666813766692742654687629586600
Percentage of AvailableForSaleSecuritiesDebtSecuritiesCurrent9.29.811.811.315.818.919.022.225.323.725.722.521.321.6

us-gaap:FairValueMeasurementsRecurring, us-gaap:CommercialPaper



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value10511236808838782733729356255299264263322311
Percentage of AvailableForSaleSecuritiesDebtSecuritiesCurrent25.025.520.518.618.617.018.111.48.710.89.99.411.711.2

us-gaap:FairValueMeasurementsRecurring, us-gaap:CorporateNoteSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value2517246821672339196517131359945815745747752677689
Percentage of AvailableForSaleSecuritiesDebtSecuritiesCurrent59.851.054.951.946.739.733.830.327.927.028.027.024.624.8

us-gaap:FairValueMeasurementsRecurring, us-gaap:USGovernmentCorporationsAndAgenciesSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value248660504816797759
Percentage of AvailableForSaleSecuritiesDebtSecuritiesCurrent5.913.712.818.118.917.6

us-gaap:InvestmentType

twtr:CorporateNotesCommercialPaperAndCertificatesOfDeposit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-31
Value39574179344236863414326128551994181316991700164515861602158815171427
Percentage of AvailableForSaleSecuritiesDebtSecuritiesCurrent94.186.387.281.981.175.670.964.062.061.563.658.957.657.559.957.555.2

us-gaap:USTreasuryAndGovernmentShorttermDebtSecurities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-31
Value24866050481679710531172112211131064971114611651183106311221156
Percentage of AvailableForSaleSecuritiesDebtSecuritiesCurrent5.913.712.818.118.924.429.136.038.038.536.441.142.442.540.142.544.8

us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:InvestmentType

us-gaap:CashAndCashEquivalentsFairValueDisclosure

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



Period End2020-03-312019-12-312019-09-302019-06-302018-12-312017-12-312016-12-31
Value2617465891752861981422
Percentage of CashAndCashEquivalentsFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0

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



Period End2020-03-312019-12-312019-09-302019-06-302018-12-312017-12-312016-12-31
Value60410317201212778346292
Percentage of CashAndCashEquivalentsFairValueDisclosure23.1221.880.8161.290.435.369.2

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring, us-gaap:CorporateNoteSecurities



Period End2020-03-312019-12-312018-12-312016-12-31
Value68247
Percentage of CashAndCashEquivalentsFairValueDisclosure0.21.82.81.7

us-gaap:FairValueByMeasurementFrequency, us-gaap:InvestmentType

us-gaap:FairValueMeasurementsRecurring, us-gaap:CommercialPaper



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value60410317201212939778527379479346344362256292
Percentage of CashAndCashEquivalentsFairValueDisclosure23.1221.880.8161.20.090.40.00.00.035.30.00.00.069.2

us-gaap:FairValueMeasurementsRecurring, us-gaap:CorporateNoteSecurities



Period End2020-03-312019-12-312019-03-312018-12-312017-06-302017-03-312016-12-31
Value687240147
Percentage of CashAndCashEquivalentsFairValueDisclosure0.21.80.02.80.00.01.7

us-gaap:FairValueMeasurementsRecurring, us-gaap:MoneyMarketFunds



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value2617465891752107286111541794739981920642539422
Percentage of CashAndCashEquivalentsFairValueDisclosure100.0100.0100.0100.00.0100.00.00.00.0100.00.00.00.0100.0

us-gaap:DebtInstrument

us-gaap:ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1

twtr:ConvertibleNotesDueAtTwoThousandTwentyOne



Period End2020-03-31
Value105.28
Percentage of ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1100.0

us-gaap:ContractWithCustomerAssetNet



Period End2020-03-312019-12-31
Value2927
Percentage of ContractWithCustomerAssetNet100.0100.0

us-gaap:ContractWithCustomerLiability



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-01-01
Value48696975353825
Percentage of ContractWithCustomerLiability100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerLiabilityCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value44686972353827
Percentage of ContractWithCustomerLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:ConvertibleDebtFairValueDisclosures

twtr:ConvertibleNotesDueAtTwoThousandTwentyFive, us-gaap:FairValueInputsLevel3, us-gaap:ConvertibleDebt



Period End2020-03-31
Value980
Percentage of ConvertibleDebtFairValueDisclosures100.0

twtr:ConvertibleNotesDueAtTwoThousandTwentyFour, us-gaap:FairValueInputsLevel2, us-gaap:ConvertibleDebt



Period End2020-03-31
Value1040
Percentage of ConvertibleDebtFairValueDisclosures106.1

twtr:ConvertibleNotesDueAtTwoThousandTwentyOne, us-gaap:FairValueInputsLevel2, us-gaap:ConvertibleDebt



Period End2020-03-31
Value910
Percentage of ConvertibleDebtFairValueDisclosures92.9

us-gaap:ConvertibleLongTermNotesPayable



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value27061816179417731751173017102560165016271604158215601538151714961475145514341414139513761293
Percentage of ConvertibleLongTermNotesPayable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtInstrument, us-gaap:LongtermDebtType

twtr:ConvertibleNotesDueAtTwoThousandTwentyFive, us-gaap:ConvertibleDebt



Period End2020-03-31
Value867
Percentage of ConvertibleLongTermNotesPayable32.0

twtr:ConvertibleNotesDueAtTwoThousandTwentyFour, us-gaap:ConvertibleDebt



Period End2020-03-312019-12-312018-12-31
Value957947907
Percentage of ConvertibleLongTermNotesPayable35.452.252.4

twtr:ConvertibleNotesDueAtTwoThousandTwentyOne, us-gaap:ConvertibleDebt



Period End2020-03-312019-12-312018-12-31
Value881869823
Percentage of ConvertibleLongTermNotesPayable32.647.847.6

us-gaap:AdjustmentsForNewAccountingPronouncements, us-gaap:StatementEquityComponents

us-gaap:CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption

us-gaap:AccountingStandardsUpdate201613, us-gaap:RetainedEarnings



Period End2020-01-01
Value-1
Percentage of CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption100.0

us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings



Period End2020-01-012017-12-312017-01-01
Value-1-13-13
Percentage of CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption101.80.00.0

us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:DebtInstrumentConvertibleCarryingAmountOfTheEquityComponent

twtr:ConvertibleNotesDueAtTwoThousandTwentyFive, us-gaap:ConvertibleDebt



Period End2020-03-31
Value121
Percentage of DebtInstrumentConvertibleCarryingAmountOfTheEquityComponent100.0

twtr:ConvertibleNotesDueAtTwoThousandTwentyFour, us-gaap:ConvertibleDebt



Period End2020-03-312019-12-312018-12-31
Value254254255
Percentage of DebtInstrumentConvertibleCarryingAmountOfTheEquityComponent210.00.00.0

twtr:ConvertibleNotesDueAtTwoThousandTwentyOne, us-gaap:ConvertibleDebt



Period End2020-03-312019-12-312018-12-31
Value283283283
Percentage of DebtInstrumentConvertibleCarryingAmountOfTheEquityComponent233.30.00.0

us-gaap:DebtInstrument

us-gaap:DebtInstrumentConvertibleConversionPrice1

twtr:ConvertibleNotesDueAtTwoThousandTwentyFive



Period End2020-03-31
Value41.5
Percentage of DebtInstrumentConvertibleConversionPrice1100.0

twtr:ConvertibleNotesDueAtTwoThousandTwentyOne



Period End2020-03-31
Value77.64
Percentage of DebtInstrumentConvertibleConversionPrice1187.1

us-gaap:DebtInstrument, us-gaap:LongtermDebtType, us-gaap:StatementEquityComponents

twtr:ConvertibleNotesDueAtTwoThousandTwentyFive, us-gaap:ConvertibleDebt, us-gaap:CommonStock



Period End2020-03-31
Value41.5
Percentage of DebtInstrumentConvertibleConversionPrice1100.0

us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:DebtInstrumentFaceAmount

twtr:ConvertibleNotesDueAtTwoThousandTwentyFive, us-gaap:ConvertibleDebt



Period End2020-03-31
Value1000
Percentage of DebtInstrumentFaceAmount100.0

us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet

twtr:ConvertibleNotesDueAtTwoThousandTwentyFive, us-gaap:ConvertibleDebt



Period End2020-03-31
Value132
Percentage of DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet100.0

twtr:ConvertibleNotesDueAtTwoThousandTwentyFour, us-gaap:ConvertibleDebt



Period End2020-03-312019-12-312018-12-31
Value192202242
Percentage of DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet144.60.00.0

twtr:ConvertibleNotesDueAtTwoThousandTwentyOne, us-gaap:ConvertibleDebt



Period End2020-03-312019-12-312018-12-31
Value7284130
Percentage of DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet54.80.00.0

twtr:SeniorNotesDueAtTwoThousandTwentySeven, us-gaap:SeniorNotes



Period End2020-03-312019-12-31
Value78
Percentage of DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet5.80.0

us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:DeferredFinanceCostsGross

twtr:ConvertibleNotesDueAtTwoThousandTwentyFive, us-gaap:ConvertibleDebt



Period End2020-03-31
Value14
Percentage of DeferredFinanceCostsGross100.0

us-gaap:DeferredIncomeTaxAssetsNet



Period End2020-03-312019-12-312018-12-31
Value18561908808
Percentage of DeferredIncomeTaxAssetsNet100.0100.0100.0

us-gaap:DeferredIncomeTaxesAndOtherTaxLiabilitiesNoncurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value252420232017201715131198787323231262429312959
Percentage of DeferredIncomeTaxesAndOtherTaxLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeNotionalAmount



Period End2020-03-312019-12-312019-09-302018-12-31
Value428456518545
Percentage of DerivativeNotionalAmount100.0100.0100.0100.0

us-gaap:EmployeeRelatedLiabilitiesCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value12619017112211815513492929892737482747579908971806882885029
Percentage of EmployeeRelatedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EquitySecuritiesFvNi



Period End2020-03-312019-12-31
Value500000.00.0
Percentage of EquitySecuritiesFvNi100.00.0

us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-31
Value500000.0
Percentage of EquitySecuritiesFvNi100.0

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-31
Value0.0
Percentage of EquitySecuritiesFvNi0.0

us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring



Period End2020-03-31
Value500000.0
Percentage of EquitySecuritiesFvNi100.0

us-gaap:FinanceLeaseLiabilityCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value132333455768
Percentage of FinanceLeaseLiabilityCurrent100.0100.0100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value4641696662576662585312211196801129683707459453573615347
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsByMajorClass

twtr:PatentsAndDevelopedTechnologies



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value4641605653485854514672635447726051435141312364554945
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization100.0100.086.785.985.384.987.787.687.587.259.057.156.058.764.362.562.262.169.069.768.366.087.790.293.196.5

us-gaap:OtherIntangibleAssets



Period End2020-03-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value0221111000000
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization0.01.92.22.21.82.41.91.71.80.70.60.40.2

us-gaap:FiniteLivedIntangibleAssetsGross



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value11196116116102102111111103102177176175175224224211211221216145140188166124124
Percentage of FiniteLivedIntangibleAssetsGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsByMajorClass

twtr:PatentsAndDevelopedTechnologies



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value1099610710793931021029393123123122122145144132132141135110105153133100100
Percentage of FiniteLivedIntangibleAssetsGross98.7100.092.092.090.990.991.791.791.091.070.069.969.869.864.764.662.562.563.762.875.975.081.479.980.680.6

us-gaap:OtherIntangibleAssets



Period End2020-03-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value1222233111111
Percentage of FiniteLivedIntangibleAssetsGross1.30.90.91.01.01.41.50.80.80.60.70.90.9

us-gaap:ForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-30
Value13341131122201013600
Percentage of ForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:ForeignExchangeContract, us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302018-12-31
Value13341
Percentage of ForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue100.0100.0100.0100.0100.0

us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByMeasurementFrequency

us-gaap:ForeignExchangeContract, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302018-12-31
Value13341
Percentage of ForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue100.0100.0100.0100.0100.0

us-gaap:ForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-30
Value41223310001110151300
Percentage of ForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:ForeignExchangeContract, us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302018-12-31
Value41223
Percentage of ForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue100.0100.0100.0100.0100.0

us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByMeasurementFrequency

us-gaap:ForeignExchangeContract, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302018-12-31
Value41223
Percentage of ForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue100.0100.0100.0100.0100.0

us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:LiabilitiesFairValueDisclosure

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302018-12-312017-12-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value41223001513
Percentage of LiabilitiesFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value412233100011101513
Percentage of LiabilitiesFairValueDisclosure100.0100.0100.0100.00.0100.00.00.00.0100.00.00.00.0100.0100.0100.0100.0100.0

us-gaap:OperatingLeaseLiabilityCurrent



Period End2020-03-312019-12-312019-09-302019-06-302018-12-31
Value1411461321290
Percentage of OperatingLeaseLiabilityCurrent100.0100.0100.0100.00.0

us-gaap:OperatingLeaseLiabilityNoncurrent



Period End2020-03-312019-12-312019-09-302019-06-302018-12-31
Value5826095806140
Percentage of OperatingLeaseLiabilityNoncurrent100.0100.0100.0100.00.0

us-gaap:RelatedPartyTransactionDueFromToRelatedParty



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-06-302017-03-312016-12-31
Value4433334444440
Percentage of RelatedPartyTransactionDueFromToRelatedParty100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:RestrictedCashAndCashEquivalentsAtCarryingValue



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-302017-12-31
Value1111118
Percentage of RestrictedCashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestrictedCashAndCashEquivalentsNoncurrent



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-302017-12-31
Value27262624252527
Percentage of RestrictedCashAndCashEquivalentsNoncurrent100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueRemainingPerformanceObligation



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value815634635587459494
Percentage of RevenueRemainingPerformanceObligation100.0100.0100.0100.0100.0100.0

us-gaap:SeniorLongTermNotes



Period End2020-03-312019-12-312018-12-31
Value6926910
Percentage of SeniorLongTermNotes100.0100.00.0

us-gaap:DebtInstrument, us-gaap:LongtermDebtType

twtr:SeniorNotesDueAtTwoThousandTwentySeven, us-gaap:SeniorNotes



Period End2020-03-312019-12-31
Value692691
Percentage of SeniorLongTermNotes100.0100.0

us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber

twtr:TotalShareholderReturnRestrictedStockUnits



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value430000.0759000.0759000.0759000.0709000.0420000.0546000.0442000.0146000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PerformanceShares



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value0.0646000.0646000.0646000.0571000.0390000.0519000.0465000.0346000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber0.085.185.185.180.592.995.1105.2237.0

us-gaap:RestrictedStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value11111222223345563456546656
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber348.8188.1197.6237.2268.0532.9457.9656.10.01893.20.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RestrictedStockUnitsRSU



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value2931323435303435283332373848545866434655616474818379
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber6926.74180.64314.94533.24992.47235.06361.08021.70.022687.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue

twtr:TotalShareholderReturnRestrictedStockUnits



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value30.641.1541.1541.1541.8945.7843.8738.1613.02
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PerformanceShares



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value0.031.5231.5231.5231.0335.5535.2534.3615.39
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue0.076.676.676.674.177.780.490.0118.2

us-gaap:RestrictedStockUnitsRSU



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value30.2929.7428.6227.4626.4124.9724.3122.9219.9419.820.4920.9722.4322.6423.2523.6424.0332.4632.8832.231.2329.0828.5624.6723.3619.54
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue99.072.369.666.763.054.555.460.10.0152.10.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Line plots across dimensions of each concept

us-gaap:Revenues us-gaap:StatementGeographical


us-gaap:Revenues us-gaap:ProductOrService


us-gaap:StockholdersEquity us-gaap:StatementEquityComponents


us-gaap:CashAndCashEquivalentsAtCarryingValue us-gaap:InvestmentType


us-gaap:FiniteLivedIntangibleAssetsNet us-gaap:FiniteLivedIntangibleAssetsByMajorClass


us-gaap:StockholdersEquity us-gaap:StatementEquityComponents