TNDM


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

Table of contents



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

us-gaap:CommonStockSharesIssued

us-gaap:CommonStockSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities
us-gaap:SubsidiarySaleOfStock

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareBasicAndDiluted

us-gaap:AllocatedShareBasedCompensationExpense
us-gaap:IncomeStatementLocation

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:CostOfGoodsAndServicesSold

us-gaap:GrossProfit

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeTaxExpenseBenefit

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

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic

us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted

us-gaap:OperatingExpenses

us-gaap:OperatingIncomeLoss

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:ProfitLoss

us-gaap:ResearchAndDevelopmentExpense

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:StatementGeographical

us-gaap:SellingGeneralAndAdministrativeExpense

us-gaap:Assets

us-gaap:Liabilities

us-gaap:LiabilitiesAndStockholdersEquity

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

us-gaap:AssetsCurrent

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:ShortTermInvestments

us-gaap:AccountsReceivableNetCurrent

us-gaap:InventoryNet

us-gaap:InventoryFinishedGoods

us-gaap:PrepaidExpenseAndOtherAssetsCurrent

us-gaap:PropertyPlantAndEquipmentGross
us-gaap:PropertyPlantAndEquipmentByType

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:PropertyPlantAndEquipmentNet
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
us-gaap:FiniteLivedIntangibleAssetsNet

us-gaap:OperatingLeaseRightOfUseAsset
us-gaap:LeaseContractualTerm

us-gaap:OtherAssetsNoncurrent

us-gaap:AccountsPayableCurrent

us-gaap:AccruedLiabilitiesCurrent

us-gaap:ContractWithCustomerLiabilityCurrent
us-gaap:TimingOfTransferOfGoodOrService

us-gaap:LiabilitiesCurrent

us-gaap:OperatingLeaseLiabilityCurrent

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

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:OperatingLeaseLiability
us-gaap:LeaseContractualTerm

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

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

us-gaap:CommonStockValue
us-gaap:CumulativeEffectPeriodOfAdoption, us-gaap:AdjustmentsForNewAccountingPronouncements
us-gaap:AdditionalPaidInCapital

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:RetainedEarningsAccumulatedDeficit
us-gaap:CumulativeEffectPeriodOfAdoption, us-gaap:AdjustmentsForNewAccountingPronouncements

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
us-gaap:StatementEquityComponents

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

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

us-gaap:DepreciationDepletionAndAmortization

us-gaap:IncreaseDecreaseInAccountsPayable

us-gaap:IncreaseDecreaseInAccountsReceivable

us-gaap:IncreaseDecreaseInInventories

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:ProfitLoss

us-gaap:ShareBasedCompensation

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

us-gaap:UnrecognizedTaxBenefits

us-gaap:DeferredTaxAssetsValuationAllowance

us-gaap:ProceedsFromSaleOfShortTermInvestments

tndm:FairValueOfCommonStockWarrantsAtTimeOfExercise
us-gaap:StatementEquityComponents

tndm:IntangibleAssetCostsIncurredButNotYetPaid

tndm:IntangibleCostsInAccountsPayableAndOtherLongTermLiabilities
us-gaap:StatementEquityComponents
tndm:StockIssuedDuringPeriodSharesCommonStockWarrantsExercised

tndm:StockIssuedDuringPeriodValueCommonStockWarrantsExercised
us-gaap:StatementEquityComponents

us-gaap:AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt
us-gaap:StatementEquityComponents

us-gaap:AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebtSubsequentAdjustments
us-gaap:StatementEquityComponents

us-gaap:AllowanceForDoubtfulAccountsReceivableWriteOffs
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:AmortizationOfDebtDiscountPremium

us-gaap:AmortizationOfFinancingCostsAndDiscounts

us-gaap:CapitalExpendituresIncurredButNotYetPaid
us-gaap:StatementGeographical, us-gaap:ConcentrationRiskByBenchmark, us-gaap:ConcentrationRiskByType
us-gaap:ConcentrationRiskPercentage1

us-gaap:DilutiveSecurities

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount

us-gaap:FairValueAdjustmentOfWarrants

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityIssues

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPeriodIncreaseDecrease
us-gaap:ClassOfWarrantOrRight

us-gaap:IncreaseDecreaseInAccruedLiabilities

us-gaap:IncreaseDecreaseInContractWithCustomerLiability

us-gaap:IncreaseDecreaseInEmployeeRelatedLiabilities

us-gaap:IncreaseDecreaseInOtherCurrentLiabilities

us-gaap:IncreaseDecreaseInOtherNoncurrentAssets

us-gaap:IncreaseDecreaseInOtherNoncurrentLiabilities

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets

us-gaap:IncrementalCommonSharesAttributableToCallOptionsAndWarrants
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities
us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
us-gaap:AwardType

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

us-gaap:InterestExpenseOther

us-gaap:InventoryWriteDown

us-gaap:InvestmentIncomeNetAmortizationOfDiscountAndPremium

us-gaap:LeaseCost

us-gaap:OperatingLeaseCost

us-gaap:OperatingLeasePayments

us-gaap:OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax

us-gaap:OtherOperatingActivitiesCashFlowStatement

us-gaap:PaymentsToAcquireIntangibleAssets

us-gaap:PaymentsToAcquireShortTermInvestments

us-gaap:ProceedsFromIssuanceOfCommonStock

us-gaap:ProceedsFromMaturitiesPrepaymentsAndCallsOfShorttermInvestments
us-gaap:SubsidiarySaleOfStock
us-gaap:ProceedsFromStockPlans

us-gaap:ProceedsFromWarrantExercises

us-gaap:ProductWarrantyAccrualPayments

us-gaap:ProductWarrantyAccrualPreexistingIncreaseDecrease

us-gaap:ProductWarrantyAccrualWarrantiesIssued

us-gaap:ProvisionForDoubtfulAccounts

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability
us-gaap:SubsidiarySaleOfStock
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
us-gaap:SubsidiarySaleOfStock
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate
us-gaap:SubsidiarySaleOfStock
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate
us-gaap:SubsidiarySaleOfStock
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
us-gaap:AwardType, us-gaap:PlanName, us-gaap:Vesting
us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage

us-gaap:ShortTermLeaseCost
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised

us-gaap:StockIssuedDuringPeriodValueEmployeeStockPurchasePlan
us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures
us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised
us-gaap:StatementEquityComponents

tndm:AllowanceForSalesReturns

tndm:CommonStockWarrants
us-gaap:LongtermDebtType
tndm:CompoundedInterestRate

tndm:DeferredTaxAssetsLeaseLiabilities

tndm:DeferredTaxAssetsOperatingLossCarryforwardsDomesticExpires2026

tndm:DeferredTaxAssetsOperatingLossCarryforwardsDomesticNoExpiration
us-gaap:LongtermDebtType
tndm:InterestRate

tndm:LesseeOperatingLeaseCommitment

tndm:LesseeOperatingLeaseLiabilityToBePaidAfterYearFour

us-gaap:AccountsReceivableGross

us-gaap:AccountsReceivableNet

us-gaap:AllowanceForDoubtfulAccountsReceivable
us-gaap:LeaseContractualTerm
us-gaap:AreaOfRealEstateProperty
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:AssetsFairValueDisclosure
us-gaap:FairValueByMeasurementFrequency

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
us-gaap:FinancialInstrument
us-gaap:InvestmentType

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
us-gaap:FinancialInstrument
us-gaap:InvestmentType

us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis
us-gaap:FinancialInstrument
us-gaap:InvestmentType

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

us-gaap:CashCashEquivalentsAndShortTermInvestments

us-gaap:CommonStockCapitalSharesReservedForFutureIssuance
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities
us-gaap:TimingOfTransferOfGoodOrService
us-gaap:ContractWithCustomerLiability
us-gaap:TimingOfTransferOfGoodOrService
us-gaap:ContractWithCustomerLiabilityNoncurrent

us-gaap:ConvertibleDebtNoncurrent
us-gaap:CumulativeEffectPeriodOfAdoption, us-gaap:AdjustmentsForNewAccountingPronouncements
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentConvertibleCarryingAmountOfTheEquityComponent
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentFaceAmount
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentUnamortizedDiscount
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DeferredFinanceCostsNet

us-gaap:DeferredIncomeTaxLiabilities

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsInProcessResearchAndDevelopment

us-gaap:DeferredTaxAssetsOperatingLossCarryforwards

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsDomestic

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal

us-gaap:DeferredTaxAssetsOther

us-gaap:DeferredTaxAssetsTaxCreditCarryforwardsResearch
us-gaap:IncomeTaxAuthority

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation

us-gaap:DeferredTaxLiabilitiesFinancingArrangements

us-gaap:DeferredTaxLiabilitiesOther

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment

us-gaap:EmployeeRelatedLiabilitiesCurrent

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
us-gaap:FiniteLivedIntangibleAssetsGross

us-gaap:InventoryRawMaterials

us-gaap:InventoryWorkInProcess

us-gaap:InvestmentOwnedAtCost

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear

us-gaap:LettersOfCreditOutstandingAmount
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:LiabilitiesFairValueDisclosure
us-gaap:FairValueByMeasurementFrequency
us-gaap:DebtInstrument, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:LongtermDebtType
us-gaap:LongTermDebtFairValue

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent
us-gaap:StatementGeographical
us-gaap:OperatingLossCarryforwards

us-gaap:ProductWarrantyAccrual

us-gaap:ProductWarrantyAccrualClassifiedCurrent

us-gaap:ProductWarrantyAccrualNoncurrent

us-gaap:PurchaseObligation

us-gaap:PurchaseObligationDueInNextTwelveMonths

us-gaap:RestrictedCash
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice
us-gaap:AwardType
us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueOutstanding

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1

us-gaap:UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:WarrantsAndRightsOutstanding
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument
us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument
us-gaap:ClassOfWarrantOrRight, us-gaap:MeasurementInputType
us-gaap:WarrantsAndRightsOutstandingMeasurementInput

Plots across concepts


IncomeStatement
Comprehensive Income Net Of Tax
Expenses
Other Nonoperating Income Expense
Balance Sheet
Operating Lease Right Of Use Asset
Assets
Operating Lease Right Of Use Asset
Current Assets
Prepaid Expense And Other Assets Current
NonCurrent Assets
Other Assets Noncurrent
PropertyPlantAndEquipmentNet
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
Liabilities
Operating Lease Liability
Current Liabilities
Accrued Liabilities Current
Stockholders Equity
Retained Earnings Accumulated Deficit
CashFlow
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInOperatingActivities
Increase Decrease In Prepaid Deferred Expense And Other Assets
NetCashProvidedByUsedInInvestingActivities
Net Cash Provided By Used In Investing Activities
Shares
Weighted Average Number Of Share Outstanding Basic And Diluted
OperatingLeaseLiability
Operating Lease Liability Current
LesseeOperatingLeaseLiabilityPaymentsDue
Lessee Operating Lease Liability Payments Remainder Of Fiscal Year
InventoryNet
Inventory Finished Goods

Tables

  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
us-gaap:CommonStockValue ██████▇▇▇▇▇▇▇▆▁▇▆▆▄▄▄▄▄▄▄▄▃▃▃▃▃0.0630.0630.0620.0620.0610.060.0590.0590.0580.0580.0570.0570.0530.0470.010.0550.050.050.0310.0310.0310.030.030.030.030.030.0240.0234920.0234550.0229780.022926NANANA
 us-gaap:SharesOutstanding us-gaap:StatementEquityComponents us-gaap:CommonStock███████▇▇▇▇▇▇▆▁62.95262.57162.33562.11660.78760.07159.39659.02958.58957.98257.55457.36453.18646.63610.119NANANA31.096NANANA30.255NANANA23.655NANANA22.926NANANA
us-gaap:CommonStockSharesIssued ████████▇▇▇▇▇▆▂▁▆▆▄▄▄▄▄▄▄▄▃▃▃▃▃62.95262.57162.33562.11660.78760.07159.39659.02958.58957.98257.55457.36453.18646.63610.1195.48750.22949.83631.09630.64230.61330.34830.25530.07130.00729.7823.65523.4917723.45548322.97821922.925614NANANA
us-gaap:CommonStockSharesOutstanding ████████▇▇▇▇▇▆▂▁▆▆▄▄▄▄▄▄▄▄▃▃▃▃▃62.95262.57162.33562.11660.78760.07159.39659.02958.58957.98257.55457.36453.18646.63610.1195.48750.22949.83631.09630.64230.61330.34830.25450730.07130.00729.7822.92623.4917723.45548322.97821922.925614NANANA
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding 65.663NA65.67861.52960.424NA62.88459.196NANANA55.615NANANANANANANANANANANANANANANANANANANANANANA
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic 62.717NA62.24961.52960.424NA59.21958.801NANANA55.615NANANANANANANANANANANANANANANANANANANANANANA
us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted NA62.448NANA60.42459.74NANA58.21957.771NA55.61550.94817.993NA5.1950.03631.889NA30.62730.48930.294NA30.0429.90225.522NA23.4721523.09822.936195NA0.2142690.2110350.207609
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount ▁█2.5848.212NA8.6616.9756.517NA6.6617.4246.402NA5.9262.7957.742NA0.0080.01.642NA4.0620.0039390.001758NA3.0522733.0488233.280429NA3.4386195.3796026.324549NA16.62242215.97058810.937677
us-gaap:EarningsPerShareBasic 0.06NA0.27-0.15-0.45-0.250.04-0.05-0.03-0.40.06-0.62-1.17-1.82NANANANANANANANANANANANANANANANANANANANA
us-gaap:EarningsPerShareDiluted 0.06NA0.22-0.15-0.45-0.250.04-0.09-0.03-0.40.02-0.62-1.17-1.82NANANANANANANANANANANANANANANANANANANANA
us-gaap:EarningsPerShareBasicAndDiluted NA-0.08NANA-0.45-0.25NANA-0.03-0.40.26000000000000023-0.62-1.17-1.82-1.23-3.09-0.44-0.75-0.48-0.97-0.6-0.68-0.4-0.65-0.65-0.83-0.78-0.85-0.83-0.96-2.14-60.96-72.5-53.77
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
 TTM Greenblatt ROC _ _▆▅█▅▃▃▆▄▅▄▅▃▃▃▄▃▂▂▃▁▃▂▄▂▂▂▃▂▃▂▃5.432-3.23718.662-1.009-12.037-13.5732.144-6.004-1.865-10.9970.56-15.709-13.997-15.485-9.583-13.167-18.968-21.226-13.346-28.414-17.053-19.238-11.22-18.703-18.671-20.41-17.502-19.005616-18.318-20.837567-16.463NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
us-gaap:AllocatedShareBasedCompensationExpense ▇▆▆▆▇▇█▇▅▄▅▄▂▁▁▁▃▂▂▂▂▂▂▂▂▂▂▂▂▂14.97712.94713.30812.83716.42115.86518.68517.2312.4139.83410.3099.5372.6981.1922.1262.3925.1462.9642.9272.9053.0292.83.0862.9773.263.7733.9473.7463.5313.771NANA0.5880.056
us-gaap:ComprehensiveIncomeNetOfTax ▇▆█▆▄▅▇▆▆▄▇▃▁▃▅▅▄▄▅▄▅▅▅▅▅▄▅▅▅▄▄▅▅▅3.931-5.15817.03-9.261-26.819-15.2342.683-2.972-1.391-22.9383.688-34.264-59.353-32.693-11.406-16.035-21.8-23.791-14.821-29.82-18.362-20.464-12.102-19.59-19.572-21.169-18.476883-19.892867-19.199-21.948112-23.613613-13.061033-15.300878-11.163476
us-gaap:CostOfGoodsAndServicesSold █▇█▆▆▅▅▅▅▄▄▃▂▂▃▂▂▂▂▂▂▂▂▂▂▂▂▂▁▁▂▁▁▁79.68567.7577.50958.2954.84647.66548.12643.97443.35132.64234.66324.46819.03915.87322.82715.13113.32512.22418.84713.8714.80913.1315.66110.20310.9059.511.3527319.116576.8067.198819.0568455.2432885.1218663.418
us-gaap:GrossProfit █▇█▆▅▅▆▅▅▄▄▃▂▂▂▂▂▂▂▁▂▂▂▂▁▁▂▁▁▁▁▁▁▁92.45473.28790.55665.31354.3950.26160.27250.68349.90433.35341.53521.79615.08711.40417.46811.8728.0026.75310.065-1.5778.1766.92813.4585.5134.8012.8086.5374.3971463.4480.8666581.1882.5328620.4058782.040407
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest ▆▅█▄▁▃▆▅▅4.069-5.16117.038-9.369-29.182-14.7692.729-2.829-1.512NANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:IncomeTaxExpenseBenefit █▇██▁███████0.061-0.1170.0380.039-2.0750.0980.0770.0720.00.00.0510.0NANANANANANANANANANANANANANANANANANANANANANA
us-gaap:IncomeTaxesPaid ▁█▁▄▃▄▁▂▃▁0.00.197-0.0150.0610.040.0910.00.0120.0550.0NANANANANANANANANANANANANANANA0.018NANANA0.088NANANANA
 us-gaap:InterestExpenseDebt us-gaap:DebtInstrument,us-gaap:LongtermDebtType tndm:ConvertibleSeniorNotes,us-gaap:ConvertibleDebt▁▁██▄1.5091.5064.7754.8553.176NANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:NetIncomeLoss ▇▆█▆▄▅▇▆▆▄▇▃▁▃▅▅▄▄▅▄▅▅▅▅▅▄▅▅▅▄▄▅▅▅4.008-5.04417.0-9.408-27.107-14.8672.652-2.901-1.512-22.9923.686-34.245-59.359-32.693-11.406-16.035-21.8-23.792-14.822-29.814-18.325-20.484-12.092-19.585-19.533-21.208-18.465-19.899396-19.197-21.961945-23.614-13.061033-15.300878-11.163476
us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic 4.008NA17.0NANANA2.652-2.901NANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted 4.008NA14.181NANANA2.652-5.222NANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OperatingExpenses █▇▇▆▆▆▅▅▅▄▄▄▃▃▃▂▃▃▂▃▂▃▂▂▂▂▂▂▂▂▂▁▁▁87.02276.52471.89466.32266.42763.83458.12856.68751.76944.3540.97537.50529.08426.88927.0525.03926.9727.97923.41126.83725.22926.16624.67824.21623.47223.21824.03923.40276221.76621.70422517.65114.66037914.083079.206554
us-gaap:OperatingIncomeLoss ▆▅█▅▃▃▆▄▅▄▅▃▃▃▄▃▂▂▃▁▃▂▄▂▂▂▃▂▃▂▃▃▃▄5.432-3.23718.662-1.009-12.037-13.5732.144-6.004-1.865-10.9970.56-15.709-13.997-15.485-9.583-13.167-18.968-21.226-13.346-28.414-17.053-19.238-11.22-18.703-18.671-20.41-17.502-19.005616-18.318-20.837567-16.463-12.127517-13.677192-7.166147
us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax NA-0.076NANANA-0.4090.045-0.0110.020.0040.00.00.0NANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherNonoperatingIncomeExpense ▇▇▇▆▅▇███▆█▅▁▅▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇-1.363-1.924-1.624-8.36-17.145-1.1960.5863.1750.353-11.9953.178-18.536-45.362-17.208-1.815-2.868-2.832-2.566-1.492-1.4-1.272-1.246-0.86-0.882-0.862-0.798-0.89205-0.89378-0.879-1.124378-7.150469-0.933516-1.623686-3.997329
us-gaap:ProfitLoss ▇▆█▆▄▅▇▆▆▄▇▃▁▃▅▅4.008-5.04417.0-9.408-27.107-14.8672.652-2.901-1.512-22.9923.688-34.246-59.36-32.693-11.406-16.034NANANANANANANANANANANANANANANANANANA
us-gaap:ResearchAndDevelopmentExpense █▇▇▆▆▆▅▅▄▄▃▃▃▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁20.49917.96117.37616.09415.98714.11712.56712.03811.2049.3898.7977.9996.4565.9755.7514.9144.8665.134.3456.1544.1424.1694.1355.0933.8733.8633.9214334.5080043.6993.663323.3461822.651582.7587612.322477
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax █▇█▆▅▅▅▅▅▄▄▃▂▂▂▂▂▂▂▁▂▂▂▁▁▁▂▁▁▁▁▁▁▁172.139141.037168.065123.603109.23697.926108.39894.65793.25565.99576.19946.26434.12627.27740.29427.00321.32718.97728.91212.29322.98520.05829.1215.71615.70612.30817.88913.51371610.2548.06546810.2457.776155.5277445.458407
us-gaap:SellingGeneralAndAdministrativeExpense █▇▇▆▆▆▆▅▅▄▄▄▃▃▃▃▃▃▂▃▃▃▃▂▂▂▃▂▂▂▂▂▂▁66.52358.56354.51850.22850.4449.71745.56244.64940.56534.96132.17829.50622.62820.91421.320.12522.10422.84919.06620.68321.08721.99720.54419.12319.59919.35520.11703418.89475818.06818.04090514.30481612.00879911.3243096.884077
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
us-gaap:Assets ██▇▇▆▄▃▃▃▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▂▂▁▁▁▂▂795.25754.273716.415672.988616.239343.327326.11292.647255.081214.698206.294181.606157.994144.69995.34687.97798.543112.714112.39290.334109.19120.642125.119128.518141.334155.125106.464116.564699130.017056142.388917162.215133NANANA
us-gaap:Liabilities ██▆▆▆▃▂▂▂▂▂▁▃▃▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁449.165440.859350.11346.444348.535136.151131.131125.653109.73693.73675.01966.177131.989132.851124.494115.935116.822114.582118.31985.13777.11774.69861.65157.28453.58252.87751.89249.08142346.46958945.12834446.677951NANANA
us-gaap:LiabilitiesAndStockholdersEquity ██▇▇▆▄▃▃▃▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▂▂▁▁▁▂▂795.25754.273716.415672.988616.239343.327326.11292.647255.081214.698206.294181.606157.994144.69995.34687.97798.543112.714112.39290.334109.19120.642125.119128.518141.334155.125106.464116.564699130.017056142.388917162.215133NANANA
us-gaap:StockholdersEquity █▇█▇▆▅▅▄▄▄▄▄▂▂▁▁▁▁▁▂▂▂▃▃▃▃▂▃▃▃▄346.085313.414366.305326.544267.704207.176194.979166.994145.345120.962131.275115.42926.00511.848-29.148-27.958-18.279-1.868-5.9275.19732.07345.94463.46871.23487.752102.24854.57267.48327683.54746797.260573115.537182NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
us-gaap:AssetsCurrent ██▇▇▆▃▃▃▃▂▂▂▂▂▁▁▁▁▁▁▁▂▂▂▂▂▁▁▂▂▂698.285661.696637.235592.293539.679280.873276.141246.598213.156186.028187.885162.671128.343114.34364.15655.99265.13379.93492.09270.98690.881102.567106.984110.923124.059139.1590.751101.049596114.422564128.359223148.989182NANANA
us-gaap:CashAndCashEquivalentsAtCarryingValue ▄▅▄▅█▃▂▂▂▂▂▂▂▃▁▁▂▂▂▁▂▂▂▂▂▃▂▂▃▃▅▁▂▂98.578120.79194.613129.481222.47974.48551.17546.0638.15740.44541.82632.32750.54862.58313.712.07927.35140.33444.67817.95630.2540.6143.08843.20545.92162.54931.17635.55807364.20784476.8258124.38513715.55002330.13265229.437703
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents ▃▄▃▄█▂▁▁▁98.578120.79194.613129.481222.47974.48551.17446.0638.157NA41.826NA60.54872.58323.7NA37.35148.33444.678NANANANANANANANANANANANANANANA
us-gaap:ShortTermInvestments █▇▇▆▄▂▃▃▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▂▂▂▂▂▁▂▁446.724392.646390.323335.041203.80685.723125.283110.88793.23185.15987.20181.25435.9579.2950.4790.4590.4433.6768.8616.12224.06827.81628.01838.54651.82553.83436.10644.31880630.09736333.9479435.095331NANANA
us-gaap:AccountsReceivableNetCurrent █▇█▅▅▅▅▅▅▄▄▃▂▂▃▂▁▁▂▁▂▂▂▁▁▁▁▁▁▁▁80.21273.67382.19552.10445.03153.96246.58545.32548.43833.02735.19321.68913.91413.04320.79310.5829.0297.68711.1728.1989.4269.09314.0557.0067.4735.2267.6525.8428494.3622383.423035.298502NANANA
us-gaap:InventoryNet ██▇█▇▇▆▅▃▂▂▃▃▃▃▃▃▃▂▂▂▂▂▂▂▁▁▁▁▁▁66.70566.81663.72170.64462.26360.46949.07340.73227.34122.82619.89624.36624.91226.48626.99329.98525.82323.74821.19522.89621.69220.19617.54317.55214.6713.58111.91311.89158611.12102110.16472310.330156NANANA
us-gaap:InventoryFinishedGoods █▇▄▅▄▃▃▄▂▂▂▂▂▃▃▃▂▁▁27.66124.48817.17720.21715.71814.13111.84217.19211.739.68110.56411.26811.52212.3312.85314.359.9267.9847.425NANANA3.543NA2.9092.5122.8562.1912.3072.7833.535NANANA
us-gaap:PrepaidExpenseAndOtherAssetsCurrent ▆█▆▅▆▆▄▃▆▄▄▃▃▃▂▃▂▄▄▄▃▃▂▂▂▂▂▁▂▂▁6.0667.776.3835.0236.16.2344.0253.5945.9894.5713.7693.0353.0122.9362.1912.8872.4874.4894.1873.8143.4452.8522.282.6142.171.961.9041.4382822.6340981.9477271.830056NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
us-gaap:PropertyPlantAndEquipmentGross NANA88.955NANANA62.788NANANA42.779NANANA45.155NANANA37.665NANANA31.071NANANA23.821NANANA17.466NANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:ComputerEquipmentNANA12.219NANANA9.899NANANA8.745NANANA9.04NANANA7.844NANANA6.599NANANA5.171NANANA4.155NANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:LeaseholdImprovementsNANA22.834NANANA13.1NANANA11.313NANANA13.924NANANA8.851NANANA7.781NANANA6.002NANANA4.12NANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:ManufacturingFacilityNANA44.026NANANA33.422NANANA18.306NANANA17.505NANANA16.785NANANA12.793NANANA9.11NANANA6.51NANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:OfficeEquipmentNANA9.876NANANA6.367NANANA4.415NANANA4.686NANANA4.185NANANA3.898NANANA3.538NANANA2.681NANANA
us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment NANA38.933NANANA29.865NANANA25.628NANANA25.524NANANA19.256NANANA15.545NANANA11.24NANANA7.58NANANA
us-gaap:PropertyPlantAndEquipmentNet ████▇▆▅▄▃▂▂▂▂▃▃▃▃▃▂▂▂▂▂▂▂▂▁▁▁▁▁48.8950.44550.02249.3244.38537.62632.92328.07222.7517.18217.15117.58218.21218.8619.63120.28621.66420.92718.40917.3716.24215.93915.52614.88814.32512.92812.58112.34494212.47610910.8136619.885985NANANA
 us-gaap:FiniteLivedIntangibleAssetsNet us-gaap:FiniteLivedIntangibleAssetsByMajorClass us-gaap:PatentsNANA8.805NANANA0.7770.8850.9671.0481.131.2121.2941.3751.4571.5391.621.7041.7841.8651.9472.0292.112.1922.2742.3552.441NANANA2.697NANANA
us-gaap:OperatingLeaseRightOfUseAsset ▇█▄▄▄▅▃▃▃▁31.49933.27319.77321.32521.55323.01415.56116.57717.66510.087NANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherAssetsNoncurrent █▅▅▅▅▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁16.5768.8599.38510.0510.6221.8141.4850.5150.5430.3530.1280.1410.1450.1210.1020.160.1260.1490.1070.1130.120.1070.4990.5150.6760.6920.6910.7109310.5798230.5981430.642746NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
us-gaap:AccountsPayableCurrent ██▅▆▅▆▅▅▃▃▂▂▁▁▂▃▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁27.50428.18417.80520.49916.37121.78317.74516.3149.26811.2066.8246.1983.6463.7515.157.6056.6244.897.5135.6076.8415.9745.2344.0183.9994.0871.9493.04682.5209122.0533592.352037NANANA
us-gaap:AccruedLiabilitiesCurrent ▆▅▅▆▅▆██▆▄▄▄▄▃▃▃▁▃▂▂▂▂▂▃▂▃▃▁▂▂▂6.4055.0584.7836.3494.5635.8968.0147.9785.7863.3763.933.9314.2783.1992.8322.5360.7562.4841.6292.0222.1772.1732.1212.6031.9142.5862.921.1904831.6864251.4886811.873565NANANA
us-gaap:ContractWithCustomerLiabilityCurrent █▆▅▃▂▂▁█▆7.9536.676.0825.214.6424.3773.8698.1877.139NANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LiabilitiesCurrent █▇▇▇█▇▇▇▆▅▅▄▃▃▃▂▂▂▂▃▂▂▂▂▁▁▁▁▁▁▁108.723103.41103.852105.506114.30799.64799.396100.26684.21476.6866.28858.5542.50743.71136.08529.41130.83929.21531.47634.8227.06524.82426.5222.3218.48518.7718.09415.65595413.2106813.13554114.599232NANANA
us-gaap:OperatingLeaseLiabilityCurrent █████▆▃▂▁9.269.4469.4219.3659.3068.326.325.9515.341NANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherLiabilitiesCurrent ██▇▇▆▅▅▄▃▃▄▃▂▂▂▂▃▃▃▃▂▂▂▂▁▁▁▁▁▁▂18.33618.82417.34116.15314.06911.92211.61910.3467.1686.1268.9786.8465.6875.3155.6575.5626.5176.4656.9437.2195.3325.4585.5823.8932.8572.5052.6632.4128122.9912192.2668923.717412NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
 us-gaap:LongTermDebt us-gaap:DebtInstrument,us-gaap:LongtermDebtType tndm:ConvertibleSeniorNotes,us-gaap:ConvertibleDebt██▁▁280.599280.168202.984199.12NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherLiabilitiesNoncurrent █▇▇▆▆▅▅▃▃▂▂▂▃▃▂▂▂▃▂▂▂▂▁▁▁▁▁▁▁▁▁32.46728.2727.3623.92521.25216.95717.67210.1298.9146.3714.9323.5998.1328.2477.1816.7866.9557.6285.2743.4453.4473.2992.7192.552.5342.1021.6581.1560920.8619280.7287350.79564NANANA
us-gaap:OperatingLeaseLiabilityNoncurrent ▇█▂▃▃▄▁▂▂27.37629.01115.91417.89317.63219.54714.06315.25816.608NANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo ▁▁██6.8566.8568.718.71NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree ██▁▁5.6915.6914.3864.386NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour ██▁▁5.8015.8011.8811.881NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive NANA1.876NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive NANA2.099NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
us-gaap:StockholdersEquity █▇█▇▆▅▅▄▄▄▄▄▂▂▁▁▁▁▁▂▂▂▃▃▃▃▂▃▃▃▄346.085313.414366.305326.544267.704207.176194.979166.994145.345120.962131.275115.42926.00511.848-29.148-27.958-18.279-1.868-5.9275.19732.07345.94463.46871.23487.752102.24854.57267.48327683.54746797.260573115.537182NANANA
us-gaap:CommonStockValue ██████▇▇▇▇▇▇▇▆▁▇▆▆▄▄▄▄▄▄▄▄▃▃▃▃▃0.0630.0630.0620.0620.0610.060.0590.0590.0580.0580.0570.0570.0530.0470.010.0550.050.050.0310.0310.0310.030.030.030.030.030.0240.0234920.0234550.0229780.022926NANANA
 us-gaap:AdditionalPaidInCapital us-gaap:CumulativeEffectPeriodOfAdoption,us-gaap:AdjustmentsForNewAccountingPronouncements srt:CumulativeEffectPeriodOfAdoptionAdjustment,tndm:AccountingStandardsUpdate202006NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:AdditionalPaidInCapital us-gaap:CumulativeEffectPeriodOfAdoption,us-gaap:AdjustmentsForNewAccountingPronouncements srt:CumulativeEffectPeriodOfAdoptionAdjustment,us-gaap:AccountingStandardsUpdate202006NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:AdditionalPaidInCapitalCommonStock █▇██▇▆▆▆▆▅▅▅▄▃▂▂▂▂▂▂▂▂▂▂▂▂▁997.19968.451025.2331002.502934.402847.056819.626794.324769.704743.93731.306719.148595.463521.958448.455438.194431.844426.454398.623394.926391.981387.491384.551380.215377.142372.102303.255NANANANANANANA
us-gaap:RetainedEarningsAccumulatedDeficit ▁▁▁▁▁▂▂▂▂▂▂▂▂▃▄▄▄▄▅▅▅▆▆▆▆▇▇▇▇██-651.197-655.205-659.21-676.21-666.802-639.695-624.828-627.48-624.579-623.067-600.075-603.763-569.517-510.157-477.613-466.207-450.173-428.372-404.58-389.757-359.942-341.617-321.133-309.043-289.457-269.923-248.715-230.248923-210.349529-191.15294-169.190995NANANA
 us-gaap:RetainedEarningsAccumulatedDeficit us-gaap:CumulativeEffectPeriodOfAdoption,us-gaap:AdjustmentsForNewAccountingPronouncements srt:CumulativeEffectPeriodOfAdoptionAdjustment,tndm:AccountingStandardsUpdate202006NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RetainedEarningsAccumulatedDeficit us-gaap:CumulativeEffectPeriodOfAdoption,us-gaap:AdjustmentsForNewAccountingPronouncements srt:CumulativeEffectPeriodOfAdoptionAdjustment,us-gaap:AccountingStandardsUpdate202006NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax ▅▆██▅▁▇▆▇▅▄0.0290.1060.220.190.043-0.2450.1220.0910.1620.041-0.013NANANANANANANA-0.001-0.0030.0030.040.020.0320.0370.0390.008NANANANANANANA
us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue ▇▆▆▅▇▇█▇▅▄▅▄▂▁15.11813.01413.20412.30116.41315.80818.88317.57412.4139.75210.0539.9962.8151.134NANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities ██▆▆▆▁▇▇▄▃▆▃▃▂▂▁28.89528.68515.23714.56415.499-20.63119.44223.0193.568-4.12414.133-3.457-6.723-12.272-11.641-19.018NANANANANANANANANANANANANA-16.959957NANANA-8.810558
us-gaap:NetCashProvidedByUsedInInvestingActivities ▄▆▄▁▁█▆▆▆▇▆▅▆▆▇▇-64.761-6.094-59.626-137.825-131.52132.916-20.901-22.171-14.6610.778-6.591-46.811-27.823-9.514-1.419-0.244NANANANANANANANANANANANANA-30.626129NANANA-1.401111
us-gaap:NetCashProvidedByUsedInFinancingActivities ▁▁▁▂█▁▁▁▁▁▁▂▂▃▁▁13.6233.5739.20429.931263.82211.4816.4187.0348.7931.9621.95722.04722.51170.66914.6813.99NANANANANANANANANANANANANA0.026749NANANA22.486642
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect ▃▄▃▁█▄▄▄▄▄▄▃▃▅▄▃▃▄-22.21326.178-34.868-92.998147.99423.315.1147.903-2.285-1.3849.499-28.221-12.03548.8831.621-15.272-12.9833.656NANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
us-gaap:AmortizationOfFinancingCosts NA0.428NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:AmortizationOfFinancingCosts us-gaap:DebtInstrument,us-gaap:LongtermDebtType tndm:ConvertibleSeniorNotes,us-gaap:ConvertibleDebt0.431NA3.6163.5330.159NANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:DepreciationDepletionAndAmortization ███▇▅▄▃▃▃▃▃▃▃▃▅▄▃▃▃▂▃▃▂▂▂▂▃▂▂▂▁▁▂▁3.443.4853.4272.9892.2051.831.6421.4841.5081.4381.4681.4551.4051.4932.1291.7211.5881.4281.4721.2991.3841.3341.2191.1961.2321.1821.3042261.1665860.9971910.9209970.7039780.7566360.9223840.784002
us-gaap:IncreaseDecreaseInAccountsPayable NA10.537-2.153.592-4.6184.2941.7794.925-2.174.3760.5582.816-0.079-1.654-2.4750.9692.278-2.7252.943-1.440.7111.021.1310.8360.0341.354-1.8409630.5391880.55782-0.4810451.016918-0.0020230.737359-0.893254
us-gaap:IncreaseDecreaseInAccountsReceivable ▄▁█▄▁▄▃▂▅▂▅▄▃▁▄▃▃▂▃▂▃▂▄▂▃▂▃▃▃▂▃▃▃▂7.343-8.38931.0177.77-8.2428.2922.11-2.415.809-1.82113.9358.0481.522-7.65710.3721.7991.452-3.1782.94-1.1630.562-4.597.126-0.3742.178-2.4571.8919271.4843710.985823-1.8211211.2619861.4820730.568696-0.151755
us-gaap:IncreaseDecreaseInInventories ▃▄▁▆▄▇▆█▅▅▂▃▃▃▂▅▄▄▃▄▄▄▃▄▄▄▃▄▄▃▃▄▄▄-0.1193.084-6.6918.8712.08611.0958.98513.5364.7643.69-4.004-0.794-1.616-0.342-3.1444.2412.1822.615-0.2063.0021.4862.6220.0973.0951.2341.6580.0476620.7645820.8196710.188085-0.2266881.2207011.1240332.506954
us-gaap:NetCashProvidedByUsedInOperatingActivities ██▆▆▆▁▇▇▄▃▆▃▃▂▂▁28.89528.68515.23714.56415.499-20.63119.44223.0193.568-4.12414.133-3.457-6.723-12.272-11.641-19.018NANANANANANANANANANANANANA-16.959957NANANA-8.810558
us-gaap:NetIncomeLoss ▇▆█▆▄▅▇▆▆▄▇▃▁▃▅▅▄▄▅▄▅▅▅▅▅▄▅▅▅▄▄▅▅▅4.008-5.04417.0-9.408-27.107-14.8672.652-2.901-1.512-22.9923.686-34.245-59.359-32.693-11.406-16.035-21.8-23.792-14.822-29.814-18.325-20.484-12.092-19.585-19.533-21.208-18.465-19.899396-19.197-21.961945-23.614-13.061033-15.300878-11.163476
us-gaap:ProfitLoss ▇▆█▆▄▅▇▆▆▄▇▃▁▃▅▅4.008-5.04417.0-9.408-27.107-14.8672.652-2.901-1.512-22.9923.688-34.246-59.36-32.693-11.406-16.034NANANANANANANANANANANANANANANANANANA
us-gaap:ShareBasedCompensation ▇▆▆▆▇▇█▇▆▅▅▅▂▁▂▂▃▂▂▂▂▂▂▂▂▂▂▂▂▂▂▁▁▁14.97712.94713.30812.83716.42115.86518.68517.2312.3229.83410.3099.5372.6981.1922.1262.3925.1462.9642.9272.9053.0282.83.0862.9773.263.7733.9470273.745713.5312063.7710572.8463250.9652230.5884430.056009
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
us-gaap:NetCashProvidedByUsedInInvestingActivities ▄▆▄▁▁█▆▆▆▇▆▅▆▆▇▇-64.761-6.094-59.626-137.825-131.52132.916-20.901-22.171-14.6610.778-6.591-46.811-27.823-9.514-1.419-0.244NANANANANANANANANANANANANA-30.626129NANANA-1.401111
us-gaap:PaymentsToAcquirePropertyPlantAndEquipment ▃▄▄▆█▆▆▅▆▂▂▂▂▂▂▂▂▃▃▃▃▃▃▃▃▂▁▂▃▃▃▂▂▂1.8153.5244.0966.769.7866.7666.7494.6236.7611.4080.8881.0110.5730.5141.4190.2441.4122.6432.7432.1392.1031.9451.671.7431.7510.6-0.8538310.9693742.6705931.6198641.4799591.1139630.5149670.901111
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
us-gaap:NetCashProvidedByUsedInFinancingActivities ▁▁▁▂█▁▁▁▁▁▁▂▂▃▁▁13.6233.5739.20429.931263.82211.4816.4187.0348.7931.9621.95722.04722.51170.66914.6813.99NANANANANANANANANANANANANA0.026749NANANA22.486642
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value63000.063000.062000.062000.061000.060000.059000.059000.058000.058000.057000.057000.053000.047000.010000.055000.050000.050000.031000.031000.031000.030000.030000.030000.030000.030000.024000.023492.023455.022978.022926.0
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.10.10.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Shares Outstanding

us-gaap:SharesOutstanding us-gaap:StatementEquityComponents

us-gaap:SharesOutstanding

us-gaap:CommonStock


Shares
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value626262626060595958575757534610313023220.2270.212
Percentage of SharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Common Stock Shares Issued

us-gaap:CommonStockSharesIssued

us-gaap:CommonStockSharesIssued


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value6262626260605959585757575346105.487504931303030303030292323232222
Percentage of CommonStockSharesIssued100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Common Stock Shares Outstanding

us-gaap:CommonStockSharesOutstanding

us-gaap:CommonStockSharesOutstanding


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value6262626260605959585757575346105.487504931303030303030292223232222
Percentage of CommonStockSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding


Weighted
Period End2021-06-302020-12-312020-09-302020-06-302019-12-312019-09-302018-09-30
Value65656160625955
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic


Weighted
Period End2021-06-302020-12-312020-09-302020-06-302019-12-312019-09-302018-09-30
Value62626160595855
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Share Outstanding Basic And Diluted

us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted

us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted


Weighted
Period End2021-03-312020-06-302020-03-312019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-31
Value62605958575550175.1950313030303029252323220.2142690.2110350.207609
Percentage of WeightedAverageNumberOfShareOutstandingBasicAndDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount


Antidilutive
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-31
Value2.5848.2128.6616.9756.5176.6617.4246.4025.9262.7957.7420.0080.01.6424.0620.0039390.0017583.0522733.0488233.2804293.4386195.3796026.324549161510
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities

us-gaap:ConvertibleDebtSecurities


Antidilutive
Period End2021-06-302021-03-312020-09-302020-06-30
Value2.5542.5542.5540.0
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount98.831.129.50.0

us-gaap:EmployeeStockOption


Antidilutive
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-31
Value5.0685.5486.1955.716.2346.795.4755.1552.1660.4190.0081.2532.9420.0029320.0006061.9350.0020420.002163
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount61.764.188.887.693.691.585.587.077.55.4100.076.372.474.434.563.40.10.1

us-gaap:RestrictedStockUnitsRSU


Antidilutive
Period End2021-03-312020-09-302020-06-30
Value0.1330.1340.132
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount1.61.51.9

us-gaap:Warrant


Antidilutive
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-31
Value0.030.3790.3830.640.6090.2930.6110.7850.710.6287.3230.990.000990.000990.9900310.9900310.9900311.0065771.009171.2970570.2718340.2718340.271834
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount1.24.64.49.29.34.48.212.312.022.594.624.425.156.332.432.530.229.318.820.51.61.72.5

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount us-gaap:SubsidiarySaleOfStock

us-gaap:EmployeeStock


Antidilutive
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-31
Value0.0780.0420.0080.1980.1340.0230.1420.0610.0010.3890.131.7e-050.0001620.1271.7e-050.000127
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount0.90.50.13.02.00.32.21.00.023.73.20.49.24.20.00.0

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareBasic


Earnings
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0.060.27-0.15-0.45-0.250.04-0.05-0.03-0.40.06-0.62-1.17-1.82
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareDiluted


Earnings
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0.060.22-0.15-0.45-0.250.04-0.09-0.03-0.40.02-0.62-1.17-1.82
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Basic And Diluted

us-gaap:EarningsPerShareBasicAndDiluted

us-gaap:EarningsPerShareBasicAndDiluted


Earnings
Period End2021-03-312020-06-302020-03-312019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-0.08-0.45-0.25-0.03-0.40.26-0.62-1.17-1.82-1.23-3.09-0.44-0.75-0.48-0.97-0.6-0.68-0.4-0.65-0.65-0.83-0.78-0.85-0.83-0.96-2.14-60.96-72.5-53.77
Percentage of EarningsPerShareBasicAndDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Allocated Share Based Compensation Expense

us-gaap:AllocatedShareBasedCompensationExpense

us-gaap:AllocatedShareBasedCompensationExpense


Allocated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-06-302013-03-31
Value1412131216151817129.834109.5372.6981.1922.1262.3925.1462.9642.9272.9053.0292.83.0862.9773.263.7733.9473.7463.5313.7710.5880.056
Percentage of AllocatedShareBasedCompensationExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax8.79.27.910.415.016.217.218.213.314.913.520.67.94.45.38.924.115.610.123.613.214.010.618.920.830.722.127.734.446.810.61.0

us-gaap:AllocatedShareBasedCompensationExpense us-gaap:IncomeStatementLocation

us-gaap:CostOfSales


Allocated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-06-302013-03-31
Value1.5911.4761.7462.1382.1622.1642.2371.7511.3791.1391.4520.7840.180.1650.3380.2640.5290.2290.240.2670.2690.240.270.2610.3070.3240.3770.3130.2630.3640.050.017
Percentage of AllocatedShareBasedCompensationExpense10.611.413.116.713.213.612.010.211.111.614.18.26.713.815.911.010.37.78.29.28.98.68.78.89.48.69.68.47.49.78.530.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.91.01.01.72.02.22.11.81.51.71.91.70.50.60.81.02.51.20.82.21.21.20.91.72.02.62.12.32.64.50.90.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:CostOfSales0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ResearchAndDevelopmentExpense


Allocated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-06-302013-03-31
Value2.5052.0622.0761.8332.5522.22.6512.3692.0841.6951.8661.9320.4180.1150.1910.1670.6160.2740.3190.3180.3380.310.3010.2940.3510.4710.4820.4540.4520.4040.0540.015
Percentage of AllocatedShareBasedCompensationExpense16.715.915.614.315.513.914.213.716.817.218.120.315.59.69.07.012.09.210.910.911.211.19.89.910.812.512.212.112.810.79.226.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.51.51.21.52.32.22.42.52.22.62.44.21.20.40.50.62.91.41.12.61.51.51.01.92.23.82.73.44.45.01.00.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ResearchAndDevelopmentExpense0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:SellingGeneralAndAdministrativeExpenses


Allocated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-06-302013-03-31
Value109.4099.4868.866111113138.957.06.9916.8212.10.9121.5971.9614.0012.4612.3682.322.4222.252.5152.4222.6022.9783.0882.9792.8163.0030.4840.024
Percentage of AllocatedShareBasedCompensationExpense72.772.771.369.171.372.573.876.172.171.267.871.577.876.575.182.077.783.080.979.980.080.481.581.479.878.978.279.579.879.682.342.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.36.75.67.210.711.712.713.99.610.69.214.76.23.34.07.318.813.08.218.910.511.28.615.416.624.217.322.027.537.28.80.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:SellingGeneralAndAdministrativeExpenses0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Comprehensive Income Net Of Tax

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTax


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value3.931-5.15817-9.261-26.819-15.2342.683-2.972-1.391-22.9383.688-34.264-59.353-32.693-11.406-16.035-21.8-23.791-14.821-29.82-18.362-20.464-12.102-19.59-19.572-21.169-18.476883-19.892867-19.199-21.948112-23.613613-13.061033-15.300878-11.163476
Percentage of ComprehensiveIncomeNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.3-3.710.1-7.5-24.6-15.62.5-3.1-1.5-34.84.8-74.1-173.9-119.9-28.3-59.4-102.2-125.4-51.3-242.6-79.9-102.0-41.6-124.7-124.6-172.0-103.3-147.2-187.2-272.1-230.5-168.0-276.8-204.5

Cost Of Goods And Services Sold

us-gaap:CostOfGoodsAndServicesSold

us-gaap:CostOfGoodsAndServicesSold


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value796777585447484343323424191522151312181314131510109.5119.116576.8067.198819.0568455.2432885.1218663.418
Percentage of CostOfGoodsAndServicesSold100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax46.348.046.147.250.248.744.446.546.549.545.552.955.858.256.756.062.564.465.2112.864.465.553.864.969.477.263.567.566.489.388.467.492.762.6

Gross Profit

us-gaap:GrossProfit

us-gaap:GrossProfit


Gross
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value927390655450605049334121151117118.0026.75310-1.5778.1766.928135.5134.8012.8086.5374.3971463.4480.8666581.1882.5328620.4058782.040407
Percentage of GrossProfit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax53.752.053.952.849.851.355.653.553.550.554.547.144.241.843.444.037.535.634.8-12.835.634.546.235.130.622.836.532.533.610.711.632.67.337.4

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

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value4.069-5.16117-9.369-29.182-14.7692.729-2.829-1.512
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.4-3.710.1-7.6-26.7-15.12.5-3.0-1.6

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxExpenseBenefit


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value61000.0-117000.038000.039000.0-2075000.098000.077000.072000.00051000.00
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.0-0.10.00.0-1.90.10.10.10.00.00.10.0

Income Taxes Paid

us-gaap:IncomeTaxesPaid

us-gaap:IncomeTaxesPaid


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312015-03-312014-03-31
Value0197000.0-15000.061000.040000.091000.0012000.055000.0018000.088000.0
Percentage of IncomeTaxesPaid0.0100.0100.0100.0100.0100.00.0100.0100.00.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.1-0.00.00.00.10.00.00.10.00.11.1

Interest Expense Debt

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

us-gaap:InterestExpenseDebt

tndm:ConvertibleSeniorNotes, us-gaap:ConvertibleDebt


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-30
Value1.5091.5064.7754.8553.176
Percentage of InterestExpenseDebt100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.91.12.83.92.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax tndm:ConvertibleSeniorNotes us-gaap:ConvertibleDebt0.00.00.00.00.0

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value4.008-5.04417-9.408-27.107-14.8672.652-2.901-1.512-22.9923.686-34.245-59.359-32.693-11.406-16.035-21.8-23.792-14.822-29.814-18.325-20.484-12.092-19.585-19.533-21.208-18.465-19.899396-19.197-21.961945-23.614-13.061033-15.300878-11.163476
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.3-3.610.1-7.6-24.8-15.22.4-3.1-1.6-34.84.8-74.0-173.9-119.9-28.3-59.4-102.2-125.4-51.3-242.5-79.7-102.1-41.5-124.6-124.4-172.3-103.2-147.3-187.2-272.3-230.5-168.0-276.8-204.5

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value4.008-5.04417-9.408-27.107-14.8672.652-2.901-1.512-22.9923.688-34.245-59.359-32.693
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.1100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.3-3.610.1-7.6-24.8-15.22.4-3.1-1.6-34.84.8-74.0-173.9-119.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Net Income Loss Available To Common Stockholders Basic

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic


Net
Period End2021-06-302020-12-312019-12-312019-09-30
Value4.008172.652-2.901
Percentage of NetIncomeLossAvailableToCommonStockholdersBasic100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.310.12.4-3.1

Net Income Loss Available To Common Stockholders Diluted

us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted

us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted


Net
Period End2021-06-302020-12-312019-12-312019-09-30
Value4.008142.652-5.222
Percentage of NetIncomeLossAvailableToCommonStockholdersDiluted100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.38.42.4-5.5

Operating Expenses

us-gaap:OperatingExpenses

us-gaap:OperatingExpenses


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value8776716666635856514440372926272526272326252624242323242321211714149.206554
Percentage of OperatingExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax50.654.342.853.760.865.253.659.955.567.253.881.185.298.667.192.7126.5147.481.0218.3109.8130.584.7154.1149.4188.6134.4173.2212.3269.1172.3188.5254.8168.7

Operating Income Loss

us-gaap:OperatingIncomeLoss

us-gaap:OperatingIncomeLoss


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value5.432-3.23718-1.009-12.037-13.5732.144-6.004-1.865-10.9970.56-15.709-13.997-15.485-9.583-13.167-18.968-21.226-13.346-28.414-17.053-19.238-11.22-18.703-18.671-20.41-17.502-19.005616-18.318-20.837567-16.463-12.127517-13.677192-7.166147
Percentage of OperatingIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.2-2.311.1-0.8-11.0-13.92.0-6.3-2.0-16.70.7-34.0-41.0-56.8-23.8-48.8-88.9-111.9-46.2-231.1-74.2-95.9-38.5-119.0-118.9-165.8-97.8-140.6-178.6-258.4-160.7-156.0-247.4-131.3

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

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax


Other
Period End2021-03-312020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value-76000.0-409000.045000.0-11000.020000.04000.0000
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax100.0100.0100.0100.0100.0100.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.1-0.40.0-0.00.00.00.00.00.0

Other Nonoperating Income Expense

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:OtherNonoperatingIncomeExpense


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-1363000.0-1924000.0-1624000.0-8360000.0-17145000.0-1196000.0586000.03175000.0353000.0-11995000.03178000.0-18536000.0-45362000.0-17208000.0-1815000.0-2868000.0-2832000.0-2566000.0-1492000.0-1400000.0-1272000.0-1246000.0-860000.0-882000.0-862000.0-798000.0-892050.0-893780.0-879000.0-1124400.0-7150500.0-933520.0-1623700.0-3997300.0
Percentage of OtherNonoperatingIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.8-1.4-1.0-6.8-15.7-1.20.53.40.4-18.24.2-40.1-132.9-63.1-4.5-10.6-13.3-13.5-5.2-11.4-5.5-6.2-3.0-5.6-5.5-6.5-5.0-6.6-8.6-13.9-69.8-12.0-29.4-73.2

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value4008000.0-5044000.017000000.0-9408000.0-27107000.0-14867000.02652000.0-2901000.0-1512000.0-22992000.03688000.0-34246000.0-59360000.0-32693000.0-11406000.0-16034000.0
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.3-3.610.1-7.6-24.8-15.22.4-3.1-1.6-34.84.8-74.0-173.9-119.9-28.3-59.4

Research And Development Expense

us-gaap:ResearchAndDevelopmentExpense

us-gaap:ResearchAndDevelopmentExpense


Research
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value2017171615141212119.3898.7977.9996.4565.9755.7514.9144.8665.134.3456.1544.1424.1694.1355.0933.8733.8633.9214334.5080043.6993.663323.3461822.651582.7587612.322477
Percentage of ResearchAndDevelopmentExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.912.710.313.014.614.411.612.712.014.211.517.318.921.914.318.222.827.015.050.118.020.814.232.424.731.421.933.436.145.432.734.149.942.5

Revenue From Contract With Customer Excluding Assessed Tax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value17214116812310997108949365764634274027211828122220291515121713108.065468107.776155.5277445.458407
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:StatementGeographical

country:US


Revenue
Period End2021-06-302021-03-312020-06-302020-03-31
Value1271038979
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax74.173.381.781.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax74.173.381.781.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax country:US100.0100.0100.0100.0

us-gaap:NonUs


Revenue
Period End2021-06-302021-03-312020-06-302020-03-31
Value44371918
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax25.926.718.318.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax25.926.718.318.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:NonUs100.0100.0100.0100.0

Selling General And Administrative Expense

us-gaap:SellingGeneralAndAdministrativeExpense

us-gaap:SellingGeneralAndAdministrativeExpense


Selling
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-07-31
Value6658545050494544403432292220212022221920212120191919201818181412116.8840771.8
Percentage of SellingGeneralAndAdministrativeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax38.641.532.440.646.250.842.047.243.553.042.263.866.376.752.974.5103.6120.465.9168.391.7109.770.5121.7124.8157.3112.5139.8176.2223.7139.6154.4204.9126.10.0

Assets

us-gaap:Assets

us-gaap:Assets


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value79575471667261634332629225521420618115714495879811211290109120125128141155106116130142162
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Liabilities

us-gaap:Liabilities

us-gaap:Liabilities


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value449440350346348136131125109937566131132124115116114118857774615753525149464546
Percentage of Liabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets56.558.448.951.556.639.740.242.943.043.736.436.483.591.8130.6131.8118.5101.7105.394.270.661.949.344.637.934.148.742.135.731.728.8

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:LiabilitiesAndStockholdersEquity


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value79575471667261634332629225521420618115714495879811211290109120125128141155106116130142162
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-312011-12-31
Value3463133663262672071941661451201311152611-29.148-27.958-18.279-1.868-5.9275.197324563718710254678397115-106.052-71.295
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets43.541.651.148.543.460.359.857.157.056.363.663.616.58.2-30.6-31.8-18.5-1.7-5.35.829.438.150.755.462.165.951.357.964.368.371.20.00.0

us-gaap:StockholdersEquity us-gaap:CumulativeEffectPeriodOfAdoption

srt:CumulativeEffectPeriodOfAdoptionAdjustment


Stockholders
Period End2020-12-312017-12-31
Value-76.7540.149
Percentage of StockholdersEquity-21.0-0.5
Percentage of Assets-10.70.2
Percentage of Assets srt:CumulativeEffectPeriodOfAdoptionAdjustment0.00.0

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

srt:CumulativeEffectPeriodOfAdoptionAdjustment, us-gaap:AdditionalPaidInCapital


Stockholders
Period End2020-12-31
Value-85.803
Percentage of StockholdersEquity-23.4
Percentage of Assets-12.0
Percentage of Assets srt:CumulativeEffectPeriodOfAdoptionAdjustment us-gaap:AdditionalPaidInCapital0.0

srt:CumulativeEffectPeriodOfAdoptionAdjustment, us-gaap:RetainedEarnings


Stockholders
Period End2020-12-312017-12-31
Value9.0490.149
Percentage of StockholdersEquity2.5-0.5
Percentage of Assets1.30.2
Percentage of Assets srt:CumulativeEffectPeriodOfAdoptionAdjustment us-gaap:RetainedEarnings0.00.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-31
Value0.0290.1060.220.190.043-0.2450.1220.0910.1620.041-0.013-0.0130.0060.00.0-0.0010.020.008
Percentage of StockholdersEquity0.00.00.10.10.0-0.10.10.10.10.0-0.0-0.00.00.0-0.00.00.00.0
Percentage of Assets0.00.00.00.00.0-0.10.00.00.10.0-0.0-0.00.00.00.0-0.00.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312011-12-31
Value997968102510029348478197947697437317195955214483983843032841.435
Percentage of StockholdersEquity288.1309.0279.9307.0349.0408.9420.4475.7529.6615.0557.1623.02289.84405.5-1538.5-6725.5605.9555.7246.4-2.0
Percentage of Assets125.4128.4143.1149.0151.6246.7251.3271.4301.7346.5354.5396.0376.9360.7470.3354.7307.3284.8175.50.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value0.0630.0630.0620.0620.0610.060.0590.0590.0580.0580.0570.0570.0530.0470.010.0310.030.0240.023
Percentage of StockholdersEquity0.00.00.00.00.00.00.00.00.00.00.00.00.20.4-0.0-0.50.00.00.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value-651.197-655.205-659.21-676.21-666.802-639.695-624.828-627.48-624.579-623.067-600.075-603.763-569.517-510.157-477.613-404.58-321.133-248.715-169.191-106.052-72.73
Percentage of StockholdersEquity-188.2-209.1-180.0-207.1-249.1-308.8-320.5-375.8-429.7-515.1-457.1-523.1-2190.0-4305.81638.66826.1-506.0-455.8-146.4100.0102.0
Percentage of Assets-81.9-86.9-92.0-100.5-108.2-186.3-191.6-214.4-244.9-290.2-290.9-332.5-360.5-352.6-500.9-360.0-256.7-233.6-104.30.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Assets Current

us-gaap:AssetsCurrent

us-gaap:AssetsCurrent


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value6986616375925392802762462131861871621281146455657992709010210611012413990101114128148
Percentage of AssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets87.887.788.988.087.681.884.784.383.686.691.189.681.279.067.363.666.170.981.978.683.285.085.586.387.889.785.286.788.090.191.8

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashAndCashEquivalentsAtCarryingValue


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-12-31
Value981209412922274514638404132506213122740441730404343456231356476124153029178.657
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets12.416.013.219.236.121.715.715.715.018.820.317.832.043.314.413.727.835.839.819.927.733.734.433.632.540.329.330.549.454.076.70.00.00.00.00.0

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-312018-06-302018-03-312017-12-312017-06-302017-03-312016-12-31
Value98120941292227451463841607223374844
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets12.416.013.219.236.121.715.715.715.020.338.350.224.937.942.939.8

Short Term Investments

us-gaap:ShortTermInvestments

us-gaap:ShortTermInvestments


Short
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value4463923903352038512511093858781359.2950.4790.4590.4433.6768.8616242728385153364430335.095331
Percentage of ShortTermInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets56.252.154.549.833.125.038.437.936.539.742.344.722.86.40.50.50.43.37.917.822.023.122.430.036.734.733.938.023.123.83.1

Accounts Receivable Net Current

us-gaap:AccountsReceivableNetCurrent

us-gaap:AccountsReceivableNetCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value807382524553464548333521131320109.0297.687118.1989.4269.093147.0067.4735.2267.6525.8428494.3622383.423035.298502
Percentage of AccountsReceivableNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets10.19.811.57.77.315.714.315.519.015.417.111.98.89.021.812.09.26.89.99.18.67.511.25.55.33.47.25.03.42.43.3

Inventory Net

us-gaap:InventoryNet

us-gaap:InventoryNet


Inventory
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value66666370626049402722192424262629252321222120171714131111111010
Percentage of InventoryNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.48.98.910.510.117.615.013.910.710.69.613.415.818.328.334.126.221.118.925.319.916.714.013.710.48.811.210.28.67.16.4

Inventory Finished Goods

us-gaap:InventoryFinishedGoods

us-gaap:InventoryFinishedGoods


Inventory
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-312015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value2724172015141117119.6811011111212149.9267.9847.4253.5432.9092.5122.8562.1912.3072.7833.535
Percentage of InventoryFinishedGoods100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.53.22.43.02.64.13.65.94.64.55.16.27.38.513.516.310.17.16.62.82.11.62.71.91.82.02.2

Prepaid Expense And Other Assets Current

us-gaap:PrepaidExpenseAndOtherAssetsCurrent

us-gaap:PrepaidExpenseAndOtherAssetsCurrent


Prepaid
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value6066000.07770000.06383000.05023000.06100000.06234000.04025000.03594000.05989000.04571000.03769000.03035000.03012000.02936000.02191000.02887000.02487000.04489000.04187000.03814000.03445000.02852000.02280000.02614000.02170000.01960000.01904000.01438300.02634100.01947700.01830100.0
Percentage of PrepaidExpenseAndOtherAssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.81.00.90.71.01.81.21.22.32.11.81.71.92.02.33.32.54.03.74.23.22.41.82.01.51.31.81.22.01.41.1

Property Plant And Equipment Gross

us-gaap:PropertyPlantAndEquipmentGross

us-gaap:PropertyPlantAndEquipmentGross


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value8862424537312317
Percentage of PropertyPlantAndEquipmentGross100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets12.419.320.747.433.524.822.410.8

us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType

us-gaap:ComputerEquipment


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value129.8998.7459.047.8446.5995.1714.155
Percentage of PropertyPlantAndEquipmentGross13.715.820.420.020.821.221.723.8
Percentage of Assets1.73.04.29.57.05.34.92.6
Percentage of Assets us-gaap:ComputerEquipment0.00.00.00.00.00.00.00.0

us-gaap:LeaseholdImprovements


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value221311138.8517.7816.0024.12
Percentage of PropertyPlantAndEquipmentGross25.720.926.430.823.525.025.223.6
Percentage of Assets3.24.05.514.67.96.25.62.5
Percentage of Assets us-gaap:LeaseholdImprovements0.00.00.00.00.00.00.00.0

us-gaap:ManufacturingFacility


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value4433181716129.116.51
Percentage of PropertyPlantAndEquipmentGross49.553.242.838.844.641.238.237.3
Percentage of Assets6.110.28.918.414.910.28.64.0
Percentage of Assets us-gaap:ManufacturingFacility0.00.00.00.00.00.00.00.0

us-gaap:OfficeEquipment


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value9.8766.3674.4154.6864.1853.8983.5382.681
Percentage of PropertyPlantAndEquipmentGross11.110.110.310.411.112.514.915.3
Percentage of Assets1.42.02.14.93.73.13.31.7
Percentage of Assets us-gaap:OfficeEquipment0.00.00.00.00.00.00.00.0

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment


Accumulated
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value382925251915117.58
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets5.49.212.426.817.112.410.64.7

Property Plant And Equipment Net

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:PropertyPlantAndEquipmentNet


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value4850504944373228221717171818192021201817161515141412121212109.885985
Percentage of PropertyPlantAndEquipmentNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets6.16.77.07.37.211.010.19.68.98.08.39.711.513.020.623.122.018.616.419.214.913.212.411.610.18.311.810.69.67.66.1

Finite Lived Intangible Assets Net

us-gaap:FiniteLivedIntangibleAssetsNet us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:FiniteLivedIntangibleAssetsNet

us-gaap:Patents


Finite
Period End2020-12-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value8805000.0777000.0885000.0967000.01048000.01130000.01212000.01294000.01375000.01457000.01539000.01620000.01704000.01784000.01865000.01947000.02029000.02110000.02192000.02274000.02355000.02441000.02697000.0
Percentage of FiniteLivedIntangibleAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.20.20.30.40.50.50.70.81.01.51.71.61.51.62.11.81.71.71.71.61.52.31.7
Percentage of Assets us-gaap:Patents0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Operating Lease Right Of Use Asset

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OperatingLeaseRightOfUseAsset


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value31331921212315161710
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.04.42.83.23.56.74.85.76.94.7

us-gaap:OperatingLeaseRightOfUseAsset us-gaap:LeaseContractualTerm

tndm:RoselleStreetSanDiegoCalifornia


Operating
Period End2020-09-30
Value2.2
Percentage of OperatingLeaseRightOfUseAsset10.3
Percentage of Assets0.3
Percentage of Assets tndm:RoselleStreetSanDiegoCalifornia0.0

tndm:VistaSorrentoParkwayLease


Operating
Period End2021-06-302021-03-312019-03-31
Value15153.1
Percentage of OperatingLeaseRightOfUseAsset47.945.430.7
Percentage of Assets1.92.01.4
Percentage of Assets tndm:VistaSorrentoParkwayLease0.00.00.0

Other Assets Noncurrent

us-gaap:OtherAssetsNoncurrent

us-gaap:OtherAssetsNoncurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value168.8599.38510101.8141.4850.5150.5430.3530.1280.1410.1450.1210.1020.160.1260.1490.1070.1130.120.1070.4990.5150.6760.6920.6910.7109310.5798230.5981430.642746
Percentage of OtherAssetsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.11.21.31.51.70.50.50.20.20.20.10.10.10.10.10.20.10.10.10.10.10.10.40.40.50.40.60.60.40.40.4

Accounts Payable Current

us-gaap:AccountsPayableCurrent

us-gaap:AccountsPayableCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value27281720162117169.268116.8246.1983.6463.7515.157.6056.6244.897.5135.6076.8415.9745.2344.0183.9994.0871.9493.04682.5209122.0533592.352037
Percentage of AccountsPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.53.72.53.02.76.35.45.63.65.23.33.42.32.65.48.66.74.36.76.26.35.04.23.12.82.61.82.61.91.41.4

Accrued Liabilities Current

us-gaap:AccruedLiabilitiesCurrent

us-gaap:AccruedLiabilitiesCurrent


Accrued
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value6405000.05058000.04783000.06349000.04563000.05896000.08014000.07978000.05786000.03376000.03930000.03931000.04278000.03199000.02832000.02536000.0756000.02484000.01629000.02022000.02177000.02173000.02121000.02603000.01914000.02586000.02920000.01190500.01686400.01488700.01873600.0
Percentage of AccruedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.80.70.70.90.71.72.52.72.31.61.92.22.72.23.02.90.82.21.42.22.01.81.72.01.41.72.71.01.31.01.2

Contract With Customer Liability Current

us-gaap:ContractWithCustomerLiabilityCurrent

us-gaap:ContractWithCustomerLiabilityCurrent


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value7953000.06670000.06082000.05210000.04642000.04377000.03869000.08187000.07139000.0
Percentage of ContractWithCustomerLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.00.90.80.80.81.31.22.82.8

us-gaap:ContractWithCustomerLiabilityCurrent us-gaap:TimingOfTransferOfGoodOrService

us-gaap:TransferredOverTime


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value7471000.06313000.05508000.04608000.04180000.03833000.03465000.0
Percentage of ContractWithCustomerLiabilityCurrent93.994.690.688.490.087.689.6
Percentage of Assets0.90.80.80.70.71.11.1
Percentage of Assets us-gaap:TransferredOverTime0.00.00.00.00.00.00.0

Liabilities Current

us-gaap:LiabilitiesCurrent

us-gaap:LiabilitiesCurrent


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value10810310310511499991008476665842433629302931342724262218181815131314
Percentage of LiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets13.713.714.515.718.529.030.534.333.035.732.132.226.930.237.833.431.325.928.038.524.820.621.217.413.112.117.013.410.29.29.0

Operating Lease Liability Current

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OperatingLeaseLiabilityCurrent


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value9260000.09446000.09421000.09365000.09306000.08320000.06320000.05951000.05341000.0
Percentage of OperatingLeaseLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.21.31.31.41.52.41.92.02.1

Other Liabilities Current

us-gaap:OtherLiabilitiesCurrent

us-gaap:OtherLiabilitiesCurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value18181716141111107.1686.1268.9786.8465.6875.3155.6575.5626.5176.4656.9437.2195.3325.4585.5823.8932.8572.5052.6632.4128122.9912192.2668923.717412
Percentage of OtherLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.32.52.42.42.33.53.63.52.82.94.43.83.63.75.96.36.65.76.28.04.94.54.53.02.01.62.52.12.31.62.3

Long Term Debt

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

us-gaap:LongTermDebt

tndm:ConvertibleSeniorNotes, us-gaap:ConvertibleDebt


Long
Period End2021-06-302021-03-312020-12-312020-09-30
Value280280202199
Percentage of LongTermDebt100.0100.0100.0100.0
Percentage of Assets35.337.128.329.6
Percentage of Assets tndm:ConvertibleSeniorNotes us-gaap:ConvertibleDebt0.00.00.00.0

Other Liabilities Noncurrent

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:OtherLiabilitiesNoncurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value32282723211617108.9146.3714.9323.5998.1328.2477.1816.7866.9557.6285.2743.4453.4473.2992.7192.552.5342.1021.6581.1560920.8619280.7287350.79564
Percentage of OtherLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.13.73.83.63.44.95.43.53.53.02.42.05.15.77.57.77.16.84.73.83.22.72.22.01.81.41.61.00.70.50.5

Operating Lease Liability Noncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value272915171719141516
Percentage of OperatingLeaseLiabilityNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.43.82.22.72.95.74.35.26.5

Lessee Operating Lease Liability Payments Due Year Two

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value6856000.06856000.08710000.08710000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearTwo100.0100.0100.0100.0
Percentage of Assets0.90.91.21.3

Lessee Operating Lease Liability Payments Due Year Three

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value5691000.05691000.04386000.04386000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearThree100.0100.0100.0100.0
Percentage of Assets0.70.80.60.7

Lessee Operating Lease Liability Payments Due Year Four

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value5801000.05801000.01881000.01881000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFour100.0100.0100.0100.0
Percentage of Assets0.70.80.30.3

Lessee Operating Lease Liability Payments Due Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive


Lessee
Period End2020-12-31
Value1876000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFive100.0
Percentage of Assets0.3

Lessee Operating Lease Liability Payments Due After Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive


Lessee
Period End2020-12-31
Value2099000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive100.0
Percentage of Assets0.3

Operating Lease Liability

us-gaap:OperatingLeaseLiability

us-gaap:OperatingLeaseLiability


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value363825272627202121
Percentage of OperatingLeaseLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.65.13.54.14.48.16.37.28.6

us-gaap:OperatingLeaseLiability us-gaap:LeaseContractualTerm

tndm:RoselleStreetSanDiegoCalifornia


Operating
Period End2020-09-30
Value2.2
Percentage of OperatingLeaseLiability8.1
Percentage of Assets0.3
Percentage of Assets tndm:RoselleStreetSanDiegoCalifornia0.0

tndm:VistaSorrentoParkwayLease


Operating
Period End2021-06-302021-03-312019-03-31
Value15153.1
Percentage of OperatingLeaseLiability41.239.30.0
Percentage of Assets1.92.01.4
Percentage of Assets tndm:VistaSorrentoParkwayLease0.00.00.0

Lessee Operating Lease Liability Payments Due

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue


Lessee
Period End2021-06-302021-03-312020-12-312020-09-302020-03-312019-12-31
Value424528303123
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue100.0100.0100.0100.0100.0100.0
Percentage of Assets5.46.04.04.69.37.1

Lessee Operating Lease Liability Undiscounted Excess Amount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value6237000.06770000.03038000.03429000.0
Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount100.0100.0100.0100.0
Percentage of Assets0.80.90.40.5

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-312011-12-31
Value3463133663262672071941661451201311152611-29.148-27.958-18.279-1.868-5.9275.197324563718710254678397115-106.052-71.295
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets43.541.651.148.543.460.359.857.157.056.363.663.616.58.2-30.6-31.8-18.5-1.7-5.35.829.438.150.755.462.165.951.357.964.368.371.20.00.0

us-gaap:StockholdersEquity us-gaap:CumulativeEffectPeriodOfAdoption

srt:CumulativeEffectPeriodOfAdoptionAdjustment


Stockholders
Period End2020-12-312017-12-31
Value-76.7540.149
Percentage of StockholdersEquity-21.0-0.5
Percentage of Assets-10.70.2
Percentage of Assets srt:CumulativeEffectPeriodOfAdoptionAdjustment0.00.0

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

srt:CumulativeEffectPeriodOfAdoptionAdjustment, us-gaap:AdditionalPaidInCapital


Stockholders
Period End2020-12-31
Value-85.803
Percentage of StockholdersEquity-23.4
Percentage of Assets-12.0
Percentage of Assets srt:CumulativeEffectPeriodOfAdoptionAdjustment us-gaap:AdditionalPaidInCapital0.0

srt:CumulativeEffectPeriodOfAdoptionAdjustment, us-gaap:RetainedEarnings


Stockholders
Period End2020-12-312017-12-31
Value9.0490.149
Percentage of StockholdersEquity2.5-0.5
Percentage of Assets1.30.2
Percentage of Assets srt:CumulativeEffectPeriodOfAdoptionAdjustment us-gaap:RetainedEarnings0.00.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-31
Value0.0290.1060.220.190.043-0.2450.1220.0910.1620.041-0.013-0.0130.0060.00.0-0.0010.020.008
Percentage of StockholdersEquity0.00.00.10.10.0-0.10.10.10.10.0-0.0-0.00.00.0-0.00.00.00.0
Percentage of Assets0.00.00.00.00.0-0.10.00.00.10.0-0.0-0.00.00.00.0-0.00.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312011-12-31
Value997968102510029348478197947697437317195955214483983843032841.435
Percentage of StockholdersEquity288.1309.0279.9307.0349.0408.9420.4475.7529.6615.0557.1623.02289.84405.5-1538.5-6725.5605.9555.7246.4-2.0
Percentage of Assets125.4128.4143.1149.0151.6246.7251.3271.4301.7346.5354.5396.0376.9360.7470.3354.7307.3284.8175.50.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value0.0630.0630.0620.0620.0610.060.0590.0590.0580.0580.0570.0570.0530.0470.010.0310.030.0240.023
Percentage of StockholdersEquity0.00.00.00.00.00.00.00.00.00.00.00.00.20.4-0.0-0.50.00.00.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value-651.197-655.205-659.21-676.21-666.802-639.695-624.828-627.48-624.579-623.067-600.075-603.763-569.517-510.157-477.613-404.58-321.133-248.715-169.191-106.052-72.73
Percentage of StockholdersEquity-188.2-209.1-180.0-207.1-249.1-308.8-320.5-375.8-429.7-515.1-457.1-523.1-2190.0-4305.81638.66826.1-506.0-455.8-146.4100.0102.0
Percentage of Assets-81.9-86.9-92.0-100.5-108.2-186.3-191.6-214.4-244.9-290.2-290.9-332.5-360.5-352.6-500.9-360.0-256.7-233.6-104.30.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value63000.063000.062000.062000.061000.060000.059000.059000.058000.058000.057000.057000.053000.047000.010000.055000.050000.050000.031000.031000.031000.030000.030000.030000.030000.030000.024000.023492.023455.022978.022926.0
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.10.10.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Additional Paid In Capital

us-gaap:AdditionalPaidInCapital us-gaap:CumulativeEffectPeriodOfAdoption, us-gaap:AdjustmentsForNewAccountingPronouncements

us-gaap:AdditionalPaidInCapital

srt:CumulativeEffectPeriodOfAdoptionAdjustment, tndm:AccountingStandardsUpdate202006


Additional
Period End2021-01-01
Value-85.8
Percentage of AdditionalPaidInCapital100.0
Percentage of Assets0.0
Percentage of Assets srt:CumulativeEffectPeriodOfAdoptionAdjustment tndm:AccountingStandardsUpdate2020060.0

srt:CumulativeEffectPeriodOfAdoptionAdjustment, us-gaap:AccountingStandardsUpdate202006


Additional
Period End2021-01-01
Value-85.8
Percentage of AdditionalPaidInCapital100.0
Percentage of Assets0.0
Percentage of Assets srt:CumulativeEffectPeriodOfAdoptionAdjustment us-gaap:AccountingStandardsUpdate2020060.0

Additional Paid In Capital Common Stock

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:AdditionalPaidInCapitalCommonStock


Additional
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value99796810251002934847819794769743731719595521448438431426398394391387384380377372303
Percentage of AdditionalPaidInCapitalCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets125.4128.4143.1149.0151.6246.7251.3271.4301.7346.5354.5396.0376.9360.7470.3498.1438.2378.4354.7437.2359.0321.2307.3295.8266.8239.9284.8

Retained Earnings Accumulated Deficit

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:RetainedEarningsAccumulatedDeficit


Retained
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value-651200000.0-655200000.0-659210000.0-676210000.0-666800000.0-639700000.0-624830000.0-627480000.0-624580000.0-623070000.0-600080000.0-603760000.0-569520000.0-510160000.0-477610000.0-466210000.0-450170000.0-428370000.0-404580000.0-389760000.0-359940000.0-341620000.0-321130000.0-309040000.0-289460000.0-269920000.0-248720000.0-230250000.0-210350000.0-191150000.0-169190000.0
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-81.9-86.9-92.0-100.5-108.2-186.3-191.6-214.4-244.9-290.2-290.9-332.5-360.5-352.6-500.9-529.9-456.8-380.1-360.0-431.5-329.6-283.2-256.7-240.5-204.8-174.0-233.6-197.5-161.8-134.2-104.3

us-gaap:RetainedEarningsAccumulatedDeficit us-gaap:CumulativeEffectPeriodOfAdoption, us-gaap:AdjustmentsForNewAccountingPronouncements

srt:CumulativeEffectPeriodOfAdoptionAdjustment, tndm:AccountingStandardsUpdate202006


Retained
Period End2021-01-01
Value9000000.0
Percentage of RetainedEarningsAccumulatedDeficit0.0
Percentage of Assets0.0
Percentage of Assets srt:CumulativeEffectPeriodOfAdoptionAdjustment tndm:AccountingStandardsUpdate2020060.0

srt:CumulativeEffectPeriodOfAdoptionAdjustment, us-gaap:AccountingStandardsUpdate202006


Retained
Period End2021-01-01
Value9000000.0
Percentage of RetainedEarningsAccumulatedDeficit0.0
Percentage of Assets0.0
Percentage of Assets srt:CumulativeEffectPeriodOfAdoptionAdjustment us-gaap:AccountingStandardsUpdate2020060.0

Accumulated Other Comprehensive Income Loss Net Of Tax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value29000.0106000.0220000.0190000.043000.0-245000.0122000.091000.0162000.041000.0-13000.0-1000.0-3000.03000.040000.020000.032000.037000.039000.08000.0
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.0-0.10.00.00.10.0-0.0-0.0-0.00.00.00.00.00.00.00.0

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

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue


Adjustments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value1513131216151817129.752109.9962.8151.134
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Adjustments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value1513131216151817129.752109.9962.8151.134
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302014-03-312013-03-31
Value2828151415-20.63119233.568-4.12414-3.457-6.723-12.272-11.641-19.018-16.959957-8.810558
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax16.820.39.111.814.2-21.117.924.33.8-6.218.5-7.5-19.7-45.0-28.9-70.4-210.3-161.4

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302014-03-312013-03-31
Value-64.761-6.094-59.626-137.825-131.52132-20.901-22.171-14.6610.778-6.591-46.811-27.823-9.514-1.419-0.244-30.626129-1.401111
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-37.6-4.3-35.5-111.5-120.433.6-19.3-23.4-15.71.2-8.6-101.2-81.5-34.9-3.5-0.9-379.7-25.7

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302014-03-312013-03-31
Value133.5739.20429263116.4187.0348.7931.9621.957222270143.990.02674922
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.92.55.524.2241.511.75.97.49.43.02.647.766.0259.136.414.80.3412.0

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

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-22.21326-34.868-92.998147235.1147.903-2.285-1.3849.499-28.221-12.035481.621-15.272-12.9833.656
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-12.918.6-20.7-75.2135.523.84.78.3-2.5-2.112.5-61.0-35.3179.24.0-56.6-60.919.3

Amortization Of Financing Costs

us-gaap:AmortizationOfFinancingCosts

us-gaap:AmortizationOfFinancingCosts


Amortization
Period End2021-03-31
Value428000.0
Percentage of AmortizationOfFinancingCosts100.0

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

tndm:ConvertibleSeniorNotes, us-gaap:ConvertibleDebt


Amortization
Period End2021-06-302020-12-312020-09-302020-06-30
Value431000.03616000.03533000.0159000.0
Percentage of AmortizationOfFinancingCosts0.00.00.00.0

Depreciation Depletion And Amortization

us-gaap:DepreciationDepletionAndAmortization

us-gaap:DepreciationDepletionAndAmortization


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value3.443.4853.4272.9892.2051.831.6421.4841.5081.4381.4681.4551.4051.4932.1291.7211.5881.4281.4721.2991.3841.3341.2191.1961.2321.1821.3042261.1665860.9971910.9209970.7039780.7566360.9223840.784002
Percentage of DepreciationDepletionAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Accounts Payable

us-gaap:IncreaseDecreaseInAccountsPayable

us-gaap:IncreaseDecreaseInAccountsPayable


Increase
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value10-2.153.592-4.6184.2941.7794.925-2.174.3760.5582.816-0.079-1.654-2.4750.9692.278-2.7252.943-1.440.7111.021.1310.8360.0341.354-1.8409630.5391880.55782-0.4810451.016918-0.0020230.737359-0.893254
Percentage of IncreaseDecreaseInAccountsPayable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Accounts Receivable

us-gaap:IncreaseDecreaseInAccountsReceivable

us-gaap:IncreaseDecreaseInAccountsReceivable


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value7.343-8.389317.77-8.2428.2922.11-2.415-1.821138.0481.522-7.657101.7991.452-3.1782.94-1.1630.562-4.597.126-0.3742.178-2.4571.8919271.4843710.985823-1.8211211.2619861.4820730.568696-0.151755
Percentage of IncreaseDecreaseInAccountsReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Inventories

us-gaap:IncreaseDecreaseInInventories

us-gaap:IncreaseDecreaseInInventories


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-0.1193.084-6.6918.8712.086118.985134.7643.69-4.004-0.794-1.616-0.342-3.1444.2412.1822.615-0.2063.0021.4862.6220.0973.0951.2341.6580.0476620.7645820.8196710.188085-0.2266881.2207011.1240332.506954
Percentage of IncreaseDecreaseInInventories100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302014-03-312013-03-31
Value2828151415-20.63119233.568-4.12414-3.457-6.723-12.272-11.641-19.018-16.959957-8.810558
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax16.820.39.111.814.2-21.117.924.33.8-6.218.5-7.5-19.7-45.0-28.9-70.4-210.3-161.4

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value4.008-5.04417-9.408-27.107-14.8672.652-2.901-1.512-22.9923.686-34.245-59.359-32.693-11.406-16.035-21.8-23.792-14.822-29.814-18.325-20.484-12.092-19.585-19.533-21.208-18.465-19.899396-19.197-21.961945-23.614-13.061033-15.300878-11.163476
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.3-3.610.1-7.6-24.8-15.22.4-3.1-1.6-34.84.8-74.0-173.9-119.9-28.3-59.4-102.2-125.4-51.3-242.5-79.7-102.1-41.5-124.6-124.4-172.3-103.2-147.3-187.2-272.3-230.5-168.0-276.8-204.5

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value4.008-5.04417-9.408-27.107-14.8672.652-2.901-1.512-22.9923.688-34.245-59.359-32.693
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.1100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.3-3.610.1-7.6-24.8-15.22.4-3.1-1.6-34.84.8-74.0-173.9-119.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value4.008-5.04417-9.408-27.107-14.8672.652-2.901-1.512-22.9923.688-34.246-59.36-32.693-11.406-16.034
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.3-3.610.1-7.6-24.8-15.22.4-3.1-1.6-34.84.8-74.0-173.9-119.9-28.3-59.4

Share Based Compensation

us-gaap:ShareBasedCompensation

us-gaap:ShareBasedCompensation


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value1412131216151817129.834109.5372.6981.1922.1262.3925.1462.9642.9272.9053.0282.83.0862.9773.263.7733.9470273.745713.5312063.7710572.8463250.9652230.5884430.056009
Percentage of ShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302014-03-312013-03-31
Value-64.761-6.094-59.626-137.825-131.52132-20.901-22.171-14.6610.778-6.591-46.811-27.823-9.514-1.419-0.244-30.626129-1.401111
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-37.6-4.3-35.5-111.5-120.433.6-19.3-23.4-15.71.2-8.6-101.2-81.5-34.9-3.5-0.9-379.7-25.7

Payments To Acquire Property Plant And Equipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value1.8153.5244.0966.769.7866.7666.7494.6236.7611.4080.8881.0110.5730.5141.4190.2441.4122.6432.7432.1392.1031.9451.671.7431.7510.6-0.8538310.9693742.6705931.6198641.4799591.1139630.5149670.901111
Percentage of PaymentsToAcquirePropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302014-03-312013-03-31
Value133.5739.20429263116.4187.0348.7931.9621.957222270143.990.02674922
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.92.55.524.2241.511.75.97.49.43.02.647.766.0259.136.414.80.3412.0

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

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value52.0838.423.6147.118.410.7210.28.0712.33
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice100.0100.0100.0100.0100.0100.0100.0100.0100.0

Unrecognized Tax Benefits

us-gaap:UnrecognizedTaxBenefits

us-gaap:UnrecognizedTaxBenefits


Unrecognized
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value106.588.8248.1218.1677.5943.5391.9121.4220.779
Percentage of UnrecognizedTaxBenefits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Assets Valuation Allowance

us-gaap:DeferredTaxAssetsValuationAllowance

us-gaap:DeferredTaxAssetsValuationAllowance


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value1211091231101371079363
Percentage of DeferredTaxAssetsValuationAllowance100.0100.0100.0100.0100.0100.0100.0100.0

Proceeds From Sale Of Short Term Investments

us-gaap:ProceedsFromSaleOfShortTermInvestments

us-gaap:ProceedsFromSaleOfShortTermInvestments


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value9.25811116.016185.75.150.01.417140.00.03.255.2512111313232121211311
Percentage of ProceedsFromSaleOfShortTermInvestments100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

tndm:FairValueOfCommonStockWarrantsAtTimeOfExercise

tndm:FairValueOfCommonStockWarrantsAtTimeOfExercise


Fair
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0.0120.324250.00.1410.00.0134.5690.910.1693.913481.599
Percentage of FairValueOfCommonStockWarrantsAtTimeOfExercise0.0100.0100.0100.00.0100.00.0100.0100.0100.0100.0100.0100.0100.0

tndm:FairValueOfCommonStockWarrantsAtTimeOfExercise us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Fair
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0.0120.324250.00.1410.00.0134.5690.910.1693.913481.599
Percentage of FairValueOfCommonStockWarrantsAtTimeOfExercise0.0100.0100.0100.00.0100.00.0100.0100.0100.0100.0100.0100.0100.0

tndm:IntangibleAssetCostsIncurredButNotYetPaid

tndm:IntangibleAssetCostsIncurredButNotYetPaid


Intangible
Period End2020-09-30
Value0
Percentage of IntangibleAssetCostsIncurredButNotYetPaid0.0

tndm:IntangibleCostsInAccountsPayableAndOtherLongTermLiabilities

tndm:IntangibleCostsInAccountsPayableAndOtherLongTermLiabilities


Intangible
Period End2021-03-31
Value2244000.0
Percentage of IntangibleCostsInAccountsPayableAndOtherLongTermLiabilities100.0

tndm:StockIssuedDuringPeriodSharesCommonStockWarrantsExercised us-gaap:StatementEquityComponents

tndm:StockIssuedDuringPeriodSharesCommonStockWarrantsExercised

us-gaap:CommonStock


Stock
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0125000.03000.0257000.034000.02000.00075000.019000.05000.0112000.06549000.01937000.0
Percentage of StockIssuedDuringPeriodSharesCommonStockWarrantsExercised0.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0

tndm:StockIssuedDuringPeriodValueCommonStockWarrantsExercised

tndm:StockIssuedDuringPeriodValueCommonStockWarrantsExercised


Stock
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0.00.4370.0150.8992.0290.0070.0010.00.2620.0640.0150.393226.778
Percentage of StockIssuedDuringPeriodValueCommonStockWarrantsExercised0.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0

tndm:StockIssuedDuringPeriodValueCommonStockWarrantsExercised us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stock
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0.00.4370.0150.8992.0290.0070.0010.00.2620.0640.0140.393226.776
Percentage of StockIssuedDuringPeriodValueCommonStockWarrantsExercised0.0100.0100.0100.0100.0100.0100.00.0100.0100.093.3100.0100.0100.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt

us-gaap:AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt


Adjustments
Period End2020-12-312020-09-302020-06-30
Value0.00.085
Percentage of AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt0.00.0100.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Adjustments
Period End2020-12-312020-09-302020-06-30
Value0.00.085
Percentage of AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt0.00.0100.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebtSubsequentAdjustments

us-gaap:AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebtSubsequentAdjustments


Adjustments
Period End2020-12-312020-09-302020-06-30
Value0.00.034
Percentage of AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebtSubsequentAdjustments0.00.0100.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebtSubsequentAdjustments us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Adjustments
Period End2020-12-312020-09-302020-06-30
Value0.00.034
Percentage of AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebtSubsequentAdjustments0.00.0100.0

us-gaap:AllowanceForDoubtfulAccountsReceivableWriteOffs

us-gaap:AllowanceForDoubtfulAccountsReceivableWriteOffs


Allowance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value617000.0441000.0442000.0328000.0911000.0782000.0242000.0173000.0277000.0163000.0
Percentage of AllowanceForDoubtfulAccountsReceivableWriteOffs100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AmortizationOfDebtDiscountPremium us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:AmortizationOfDebtDiscountPremium

tndm:ConvertibleSeniorNotes, us-gaap:ConvertibleDebt


Amortization
Period End2021-03-312020-12-312020-09-302020-06-30
Value428000.0249000.0244000.02298000.0
Percentage of AmortizationOfDebtDiscountPremium100.0100.0100.0100.0

us-gaap:AmortizationOfFinancingCostsAndDiscounts

us-gaap:AmortizationOfFinancingCostsAndDiscounts


Amortization
Period End2020-12-312020-09-302019-12-312019-09-302018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value3.8633.7760.00.00.00.3340.6950.6920.5450.5210.5230.2940.080.0520.0640.0780.0290.0380.0360.0350.0431920.0421040.0408270.0928770.434435-0.1364630.0138350.283193
Percentage of AmortizationOfFinancingCostsAndDiscounts100.0100.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CapitalExpendituresIncurredButNotYetPaid

us-gaap:CapitalExpendituresIncurredButNotYetPaid


Capital
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-31
Value-472000.0924000.0641000.0-903000.01880000.02245000.0109000.0130000.0-35000.0-125000.0217000.012000.0-169000.0229000.0207000.0154000.0441000.0-876000.0-128000.01638000.0743090.0-13286.0-90283.0149480.0-209210.0216720.025045.0
Percentage of CapitalExpendituresIncurredButNotYetPaid100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ConcentrationRiskPercentage1 us-gaap:StatementGeographical, us-gaap:ConcentrationRiskByBenchmark, us-gaap:ConcentrationRiskByType

us-gaap:ConcentrationRiskPercentage1

country:US, us-gaap:RevenueFromContractWithCustomer, us-gaap:CustomerConcentrationRisk


Concentration
Period End2021-06-302021-03-312020-06-302020-03-31
Value68.068.071.069.0
Percentage of ConcentrationRiskPercentage1100.0100.0100.0100.0

us-gaap:NonUs, us-gaap:RevenueFromContractWithCustomer, us-gaap:CustomerConcentrationRisk


Concentration
Period End2021-06-302021-03-312020-06-302020-03-31
Value95.096.096.093.0
Percentage of ConcentrationRiskPercentage1139.7141.2135.2134.8

us-gaap:DilutiveSecurities

us-gaap:DilutiveSecurities


Dilutive
Period End2020-12-312019-09-30
Value-2819000.02300000.0
Percentage of DilutiveSecurities100.0100.0

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


Effect
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value30000.014000.0317000.0332000.0194000.0-456000.0155000.021000.012000.03000.000
Percentage of EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0

us-gaap:EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount

us-gaap:EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount


Employee
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value100000.0700000.0-100000.0-600000.001300000.0500000.0400000.0100000.0300000.0-500000.0500000.0100000.0100000.0-100000.000300000.0000200000.0
Percentage of EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.00.00.00.0100.0

us-gaap:FairValueAdjustmentOfWarrants

us-gaap:FairValueAdjustmentOfWarrants


Fair
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312013-12-312013-09-302013-06-30
Value0.2720.69-2.8193.648141.9220.226-2.3210.42412-2.5481242145.990426-0.272030.453224
Percentage of FairValueAdjustmentOfWarrants100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityIssues

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityIssues


Fair
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value120.324250.0010.1410.00.0124.570.910.1693.913481.599
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityIssues100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPeriodIncreaseDecrease

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPeriodIncreaseDecrease


Fair
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0.69-2.8193.648141.9220.226-2.3210.42412-2.548124214
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPeriodIncreaseDecrease100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPeriodIncreaseDecrease us-gaap:ClassOfWarrantOrRight

tndm:CommonStockWarrantExpiringOctober2022


Fair
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value-0.30.2-3.024-14.3-1.90.3
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPeriodIncreaseDecrease0.029.0106.4677.1-99.7-98.9132.7

us-gaap:IncreaseDecreaseInAccruedLiabilities

us-gaap:IncreaseDecreaseInAccruedLiabilities


Increase
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value278000.0-1577000.01776000.0-1331000.0-2124000.031000.02194000.02404000.0-553000.0-1000.0-348000.01080000.0366000.0296000.01780000.0-1728000.0855000.0-353000.0-222000.042000.036000.0-474000.0673000.0-673000.0-260000.01656100.0-495940.0197740.0-384880.0-507820.0799990.0176720.0-126900.0
Percentage of IncreaseDecreaseInAccruedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInContractWithCustomerLiability

us-gaap:IncreaseDecreaseInContractWithCustomerLiability


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value3417000.01871000.02814000.01547000.01144000.01524000.01002000.01048000.01678000.0861000.0896000.0739000.090000.0349000.0
Percentage of IncreaseDecreaseInContractWithCustomerLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInEmployeeRelatedLiabilities

us-gaap:IncreaseDecreaseInEmployeeRelatedLiabilities


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value3766000.0-1448000.03635000.04798000.03159000.0-6253000.0112000.04313000.06842000.0-6982000.06801000.03589000.03130000.0-3978000.03076000.0-1709000.01059000.01447000.0-353000.0-416000.01414000.0-2223000.01907000.01177000.0-112000.0-933000.01354300.02869900.0-1077100.0698930.01154600.0780390.0881820.01068200.0
Percentage of IncreaseDecreaseInEmployeeRelatedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherCurrentLiabilities

us-gaap:IncreaseDecreaseInOtherCurrentLiabilities


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value76000.01094000.0766000.02595000.01997000.0431000.01881000.03385000.01070000.0-2120000.02119000.01149000.0307000.0-356000.0861000.0249000.0-468000.0-382000.0-775000.0945000.0542000.0-139000.01729000.0242000.0113000.0-160000.0247330.0-579840.034830.0-1277300.0-420500.0976370.0-2144400.02483600.0
Percentage of IncreaseDecreaseInOtherCurrentLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherNoncurrentAssets

us-gaap:IncreaseDecreaseInOtherNoncurrentAssets


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value142000.017000.0-96000.0-27000.0-389000.0383000.0193000.0-28000.0190000.0225000.0-13000.0-4000.025000.018000.0-57000.033000.0-23000.043000.0-6000.0-7000.013000.02000.0-3000.0-145000.0017000.00
Percentage of IncreaseDecreaseInOtherNoncurrentAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.00.0

us-gaap:IncreaseDecreaseInOtherNoncurrentLiabilities

us-gaap:IncreaseDecreaseInOtherNoncurrentLiabilities


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value2579000.0-372000.01507000.01703000.02382000.0-1704000.02214000.01213000.02541000.01444000.01334000.0430000.0238000.0365000.0356000.0-207000.0-277000.0-262000.0748000.07000.0111000.024000.0153000.01000.0403000.0366000.0475520.0268200.0133190.0-66905.0510400.0-90747.0676480.0-333140.0
Percentage of IncreaseDecreaseInOtherNoncurrentLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-1823000.01412000.01345000.0-1019000.0-130000.02231000.0567000.0-2516000.01497000.01036000.0753000.02000.076000.0745000.0-698000.0401000.0-2002000.0468000.01058000.0243000.0593000.0572000.0-315000.0461000.0193000.056000.0473770.0-1195800.0686370.0117670.0706580.0-704250.0697240.0-805570.0
Percentage of IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncrementalCommonSharesAttributableToCallOptionsAndWarrants

us-gaap:IncrementalCommonSharesAttributableToCallOptionsAndWarrants


Incremental
Period End2021-06-30
Value148000.0
Percentage of IncrementalCommonSharesAttributableToCallOptionsAndWarrants100.0

us-gaap:IncrementalCommonSharesAttributableToCallOptionsAndWarrants us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities

us-gaap:EmployeeStockOption


Incremental
Period End2020-12-312019-12-31
Value2984000.03140000.0
Percentage of IncrementalCommonSharesAttributableToCallOptionsAndWarrants0.00.0

us-gaap:Warrant


Incremental
Period End2020-12-312019-12-312019-09-30
Value308000.0514000.0394000.0
Percentage of IncrementalCommonSharesAttributableToCallOptionsAndWarrants0.00.00.0

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements

us-gaap:EmployeeStock


Incremental
Period End2020-12-312019-12-31
Value4000.011000.0
Percentage of IncrementalCommonSharesAttributableToShareBasedPaymentArrangements100.0100.0

us-gaap:RestrictedStockUnitsRSU


Incremental
Period End2020-12-31
Value133000.0
Percentage of IncrementalCommonSharesAttributableToShareBasedPaymentArrangements3325.0

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements us-gaap:AwardType

us-gaap:EmployeeStock


Incremental
Period End2021-06-30
Value2000.0
Percentage of IncrementalCommonSharesAttributableToShareBasedPaymentArrangements0.0

us-gaap:EmployeeStockOption


Incremental
Period End2021-06-30
Value2550000.0
Percentage of IncrementalCommonSharesAttributableToShareBasedPaymentArrangements0.0

us-gaap:RestrictedStockUnitsRSU


Incremental
Period End2021-06-30
Value246000.0
Percentage of IncrementalCommonSharesAttributableToShareBasedPaymentArrangements0.0

us-gaap:InterestAndOtherIncome

us-gaap:InterestAndOtherIncome


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value418000.0272000.0332000.0143000.0412000.0726000.0814000.0914000.0786000.0757000.0629000.0443000.0299000.091000.060000.060000.060000.059000.038000.034000.0107000.0118000.090000.087000.061000.099000.032725.029991.031000.018499.06389.0151.0234.0226.0
Percentage of InterestAndOtherIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:InterestExpenseDebtExcludingAmortization

tndm:ConvertibleSeniorNotes, us-gaap:ConvertibleDebt


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-30
Value1078000.01078000.0910000.01078000.0719000.0
Percentage of InterestExpenseDebtExcludingAmortization100.0100.0100.0100.0100.0

us-gaap:InterestExpenseOther

us-gaap:InterestExpenseOther


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value1.5091.5064.7754.8553.2210.00.0020.060.0090.006-0.0011.4013.1123.0712.8962.9282.8922.6251.531.4341.3791.3640.950.9690.9230.8970.9247750.9237710.911.1428771.1664321.2056971.1706961.167175
Percentage of InterestExpenseOther100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InventoryWriteDown

us-gaap:InventoryWriteDown


Inventory
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-312015-09-302014-12-312014-09-302014-06-302014-01-102014-03-312014-01-312013-12-312013-09-302013-06-302013-03-31
Value147000.064000.052000.0-28000.0282000.0-363000.0845000.0490000.0339000.0679000.0210000.0213000.077000.0107000.0-290000.051000.0134000.0131000.01538000.087000.0216000.0-246.00-96858.01000000.0260100.01000000.0379580.0332470.079138.023808.0
Percentage of InventoryWriteDown100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InvestmentIncomeNetAmortizationOfDiscountAndPremium

us-gaap:InvestmentIncomeNetAmortizationOfDiscountAndPremium


Investment
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value-209000.0-150000.0319000.01061000.066000.0263000.0136000.072000.094000.0244000.0-485000.0-239000.0-59000.0003000.013000.026000.040000.036000.0-17000.0-25000.0-16000.019000.018000.020000.012000.015000.06000.0
Percentage of InvestmentIncomeNetAmortizationOfDiscountAndPremium100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LeaseCost

us-gaap:LeaseCost


Lease
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value2219000.02028000.01966000.01977000.01970000.01800000.01415000.01411000.01172000.0700000.0
Percentage of LeaseCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingLeaseCost

us-gaap:OperatingLeaseCost


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value2197000.02006000.01945000.01914000.01899000.01700000.01334000.01372000.01149000.0700000.0
Percentage of OperatingLeaseCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingLeasePayments

us-gaap:OperatingLeasePayments


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value2400000.02300000.02300000.03000000.01300000.01600000.01300000.01100000.01100000.0900000.0
Percentage of OperatingLeasePayments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent

us-gaap:OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-30
Value-51000.0-38000.0-69000.0105000.042000.0-60000.0101000.0
Percentage of OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-30
Value-51000.0-38000.0-69000.0105000.042000.0-60000.0101000.0
Percentage of OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent

us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-30
Value-26000.0-76000.0216000.0183000.0-409000.0-11000.020000.0
Percentage of OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-30
Value-26000.0-76000.0216000.0183000.0-409000.0-11000.020000.0
Percentage of OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax


Other
Period End2021-03-312020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value-38000.042000.0-14000.0-60000.0101000.050000.00-19000.06000.00001000.02000.0-6000.0-37000.020000.0-12000.0-5000.0-39000.039000.0-11000.07000.0-2000.014000.0
Percentage of OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax100.0100.0100.0100.0100.0100.00.0100.0100.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherOperatingActivitiesCashFlowStatement

us-gaap:OtherOperatingActivitiesCashFlowStatement


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value-33000.0-73000.01000.01000.017000.019000.0-363000.016000.0-1000.027000.0-3000.04000.03000.0148000.090000.03000.02000.064000.0-41000.0-16000.014000.0-35000.0-82000.083000.0-17000.0-60000.0
Percentage of OtherOperatingActivitiesCashFlowStatement100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsToAcquireIntangibleAssets

us-gaap:PaymentsToAcquireIntangibleAssets


Payments
Period End2020-12-312020-09-302015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value081000.000074000.0-200.000173200.001500000.00500000.0
Percentage of PaymentsToAcquireIntangibleAssets0.0100.00.00.00.0100.0100.00.00.0100.00.0100.00.0100.0

us-gaap:PaymentsToAcquireShortTermInvestments

us-gaap:PaymentsToAcquireShortTermInvestments


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value2311541651641579.727385231422360319.04.7323.2339.21613128.47819395.245266.99628
Percentage of PaymentsToAcquireShortTermInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromIssuanceOfCommonStock

us-gaap:ProceedsFromIssuanceOfCommonStock


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value133.1359.1892917116.4187.0338.5311.8981.9180.4650.00.00.3040.2660.7290.0321.4510.1091.2690.0931.8140.2171.6462090.0769671.9140750.0267492.5603130.0052260.0010010.00846
Percentage of ProceedsFromIssuanceOfCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromMaturitiesPrepaymentsAndCallsOfShorttermInvestments

us-gaap:ProceedsFromMaturitiesPrepaymentsAndCallsOfShorttermInvestments


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1681409828233018292343
Percentage of ProceedsFromMaturitiesPrepaymentsAndCallsOfShorttermInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromStockPlans us-gaap:SubsidiarySaleOfStock

us-gaap:ProceedsFromStockPlans

us-gaap:EmployeeStock


Proceeds
Period End2020-12-312020-09-302019-12-312019-09-30
Value4200000.003205000.00
Percentage of ProceedsFromStockPlans100.00.0100.00.0

us-gaap:ProceedsFromWarrantExercises

us-gaap:ProceedsFromWarrantExercises


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0.00.4380.0150.8992.0290.0070.00.0010.2620.0640.0390.372226.512
Percentage of ProceedsFromWarrantExercises0.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProductWarrantyAccrualPayments

us-gaap:ProductWarrantyAccrualPayments


Product
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value4.7514.2563.5193.4963.3313.39
Percentage of ProductWarrantyAccrualPayments100.0100.0100.0100.0100.0100.0

us-gaap:ProductWarrantyAccrualPreexistingIncreaseDecrease

us-gaap:ProductWarrantyAccrualPreexistingIncreaseDecrease


Product
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value-770000.0-546000.0854000.0-1064000.0-451000.0-1387000.0
Percentage of ProductWarrantyAccrualPreexistingIncreaseDecrease100.0100.0100.0100.0100.0100.0

us-gaap:ProductWarrantyAccrualWarrantiesIssued

us-gaap:ProductWarrantyAccrualWarrantiesIssued


Product
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value8.025.8966.5474.934.8444.814
Percentage of ProductWarrantyAccrualWarrantiesIssued100.0100.0100.0100.0100.0100.0

us-gaap:ProvisionForDoubtfulAccounts

us-gaap:ProvisionForDoubtfulAccounts


Provision
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value731000.0143000.0835000.0653000.0666000.0862000.0854000.0671000.0455000.0342000.0431000.0272000.0386000.0359000.0160000.0247000.0110000.0307000.0-34000.065000.0229000.0372000.0-69000.0-31000.083274.03760.046615.054351.0130950.048126.051395.044529.0
Percentage of ProvisionForDoubtfulAccounts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability


Right
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value0.0150.02.2170.08.8050.190.08.3923.0530.0
Percentage of RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability0.0100.00.0100.00.0100.0100.00.0100.0100.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue us-gaap:SubsidiarySaleOfStock

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue

us-gaap:EmployeeStock


Share
Period End2021-06-302020-06-30
Value29.2436.18
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue100.0100.0

us-gaap:EmployeeStockOption


Share
Period End2021-06-302020-06-30
Value54.9252.5
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue187.8145.1

us-gaap:RestrictedStockUnitsRSU


Share
Period End2021-06-302020-06-30
Value82.3182.33
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue281.5227.6

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate us-gaap:SubsidiarySaleOfStock

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate

us-gaap:EmployeeStock


Share
Period End2021-06-302020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302018-12-312018-09-302018-06-302016-09-302016-06-30
Value47.5-5.465.0430.657-0.0600.7590.04200.7700.569
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate100.0100.0100.0100.0100.00.0100.0100.00.0100.00.0100.0

us-gaap:EmployeeStockOption


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value74.975.60.175.30.750.72500.7180.7180.71600.7050.7150.6140.0080.6030.60.5930.020.561
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate157.70.0-1.9115.8114.20.0-0.00.094.60.00.00.092.90.00.00.00.00.00.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate us-gaap:SubsidiarySaleOfStock

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate

us-gaap:EmployeeStock


Share
Period End2021-06-302020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302018-12-312018-09-302018-06-302016-09-302016-06-30
Value0.100.1980.002-0.00400.0230.00100.02400.006
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate100.00.0100.0100.0100.00.0100.0100.00.0100.00.0100.0

us-gaap:EmployeeStockOption


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value1.10.900.40.0040.01100.0170.0190.02500.0280.0280.0270.0020.020.0190.0210.0030.013
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate1100.00.00.0202.0200.00.0-0.00.082.60.00.00.0116.70.00.00.00.00.00.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue us-gaap:SubsidiarySaleOfStock

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue

us-gaap:EmployeeStock


Share
Period End2020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302018-12-312018-09-302018-06-302016-09-302016-06-30
Value0.65036.18-3.17033.493.8609.6224.212.69
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue100.00.0100.0100.00.0100.0100.00.0100.0100.0100.0

us-gaap:EmployeeStockOption


Share
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value60.981.3767.6452.543.4-0.0238.7441.3832.510.5921.7711.971.86-2.453.05.112.5-13.535.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue0.0210.80.0145.10.00.60.0123.60.015.30.0124.40.00.00.00.00.00.0144.6

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage us-gaap:AwardType, us-gaap:PlanName, us-gaap:Vesting

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage

us-gaap:EmployeeStockOption, tndm:TwoThousandThirteenPlan, us-gaap:ShareBasedCompensationAwardTrancheOne


Sharebased
Period End2021-06-302021-03-312020-12-312020-09-30
Value025.0024.75
Percentage of SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage0.0100.00.0100.0

us-gaap:EmployeeStockOption, tndm:TwoThousandThirteenPlan, us-gaap:ShareBasedCompensationAwardTrancheTwo


Sharebased
Period End2020-09-30
Value74.25
Percentage of SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage300.0

us-gaap:RestrictedStockUnitsRSU, tndm:TwoThousandThirteenPlan, us-gaap:ShareBasedCompensationAwardTrancheOne


Sharebased
Period End2020-12-31
Value0
Percentage of SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage0.0

us-gaap:RestrictedStockUnitsRSU, tndm:TwoThousandThirteenPlan, us-gaap:ShareBasedCompensationAwardTrancheTwo


Sharebased
Period End2020-09-30
Value74.25
Percentage of SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage300.0

us-gaap:ShortTermLeaseCost

us-gaap:ShortTermLeaseCost


Short
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value22000.022000.021000.063000.071000.064000.0116000.039000.023000.0
Percentage of ShortTermLeaseCost100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans

us-gaap:CommonStock


Stock
Period End2021-06-302020-12-312020-09-302020-06-302019-12-312019-09-302019-06-30
Value100000.074000.00229000.0159000.00168000.0
Percentage of StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans100.0100.00.0100.0100.00.0100.0

us-gaap:StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures

us-gaap:CommonStock


Stock
Period End2021-06-30
Value29000.0
Percentage of StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures100.0

us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised

us-gaap:CommonStock


Stock
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value252000.0111000.01072000.0453000.0673000.0208000.0440000.0364000.0409000.0104000.031000.01000.0
Percentage of StockIssuedDuringPeriodSharesStockOptionsExercised100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueEmployeeStockPurchasePlan

us-gaap:StockIssuedDuringPeriodValueEmployeeStockPurchasePlan


Stock
Period End2021-06-302020-12-312020-09-302020-06-302019-12-312019-09-302019-06-30
Value6317000.04200000.004916000.03255000.002951000.0
Percentage of StockIssuedDuringPeriodValueEmployeeStockPurchasePlan100.0100.00.0100.0100.00.0100.0

us-gaap:StockIssuedDuringPeriodValueEmployeeStockPurchasePlan us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stock
Period End2021-06-302020-12-312020-09-302020-06-302019-12-312019-09-302019-06-30
Value6317000.04199000.004916000.03254000.002951000.0
Percentage of StockIssuedDuringPeriodValueEmployeeStockPurchasePlan100.0100.00.0100.0100.00.0100.0

us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures

us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures


Stock
Period End2021-06-30
Value-867000.0
Percentage of StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures100.0

us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stock
Period End2021-06-30
Value-867000.0
Percentage of StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures100.0

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised


Stock
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value8.1723.1362912113.1637.0345.5791.8990.5570.4670.007
Percentage of StockIssuedDuringPeriodValueStockOptionsExercised100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stock
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value8.1723.1352912113.1647.0335.5791.8980.5570.4670.007
Percentage of StockIssuedDuringPeriodValueStockOptionsExercised100.0100.0100.0100.0100.0100.0100.0100.099.9100.0100.0100.0

us-gaap:CommonStock


Stock
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value0.00.0010.0010.0010.001-0.0010.0010.00.001
Percentage of StockIssuedDuringPeriodValueStockOptionsExercised0.00.00.00.00.0-0.00.00.00.1

tndm:AllowanceForSalesReturns

tndm:AllowanceForSalesReturns


Allowance
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value600000.0600000.0600000.0500000.0400000.0200000.0200000.0200000.0300000.0200000.0100000.0200000.0200000.0200000.0200000.0100000.0200000.055000.0200000.0200000.0300000.0200000.0200000.0200000.0300000.0200000.0200000.0300000.0200000.0
Percentage of AllowanceForSalesReturns100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

tndm:CommonStockWarrants

tndm:CommonStockWarrants


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value2.7892.5171417392523232529172012185.432
Percentage of CommonStockWarrants100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

tndm:CompoundedInterestRate us-gaap:LongtermDebtType

tndm:CompoundedInterestRate

tndm:TermLoan


Compounded
Period End2020-12-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value2.00.020.020.020.020.020.020.020.020.020.020.020.02
Percentage of CompoundedInterestRate100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

tndm:DeferredTaxAssetsLeaseLiabilities

tndm:DeferredTaxAssetsLeaseLiabilities


Deferred
Period End2020-12-312019-12-312018-12-31
Value6112000.05733000.0196000.0
Percentage of DeferredTaxAssetsLeaseLiabilities100.0100.0100.0

tndm:DeferredTaxAssetsOperatingLossCarryforwardsDomesticExpires2026

tndm:DeferredTaxAssetsOperatingLossCarryforwardsDomesticExpires2026


Deferred
Period End2020-12-31
Value208
Percentage of DeferredTaxAssetsOperatingLossCarryforwardsDomesticExpires2026100.0

tndm:DeferredTaxAssetsOperatingLossCarryforwardsDomesticNoExpiration

tndm:DeferredTaxAssetsOperatingLossCarryforwardsDomesticNoExpiration


Deferred
Period End2020-12-31
Value131
Percentage of DeferredTaxAssetsOperatingLossCarryforwardsDomesticNoExpiration100.0

tndm:InterestRate us-gaap:LongtermDebtType

tndm:InterestRate

tndm:TermLoan


Interest
Period End2020-12-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-10-01
Value9.50.0950.0950.0950.0950.0950.0950.0950.0950.0950.0950.0950.0950.095
Percentage of InterestRate100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

tndm:LesseeOperatingLeaseCommitment

tndm:LesseeOperatingLeaseCommitment


Lessee
Period End2020-12-31
Value28
Percentage of LesseeOperatingLeaseCommitment100.0

tndm:LesseeOperatingLeaseLiabilityToBePaidAfterYearFour

tndm:LesseeOperatingLeaseLiabilityToBePaidAfterYearFour


Lessee
Period End2021-06-302021-03-312020-09-30
Value10103.975
Percentage of LesseeOperatingLeaseLiabilityToBePaidAfterYearFour100.0100.0100.0

us-gaap:AccountsReceivableGross

us-gaap:AccountsReceivableGross


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value83778655485749
Percentage of AccountsReceivableGross100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccountsReceivableNet

us-gaap:AccountsReceivableNet


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value80738252455346
Percentage of AccountsReceivableNet100.0100.0100.0100.0100.0100.0100.0

us-gaap:AllowanceForDoubtfulAccountsReceivable

us-gaap:AllowanceForDoubtfulAccountsReceivable


Allowance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value3673000.03559000.03857000.03464000.03139000.03384000.03304000.02692000.02194000.02016000.01837000.01035000.0735000.0221000.0253000.0218000.0
Percentage of AllowanceForDoubtfulAccountsReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AreaOfRealEstateProperty us-gaap:LeaseContractualTerm

us-gaap:AreaOfRealEstateProperty

tndm:RoselleStreetSanDiegoCalifornia


Area
Period End2020-09-30
Value77000.0
Percentage of AreaOfRealEstateProperty100.0

tndm:VistaSorrentoParkwayLease


Area
Period End2021-06-302021-03-312019-05-312019-01-31
Value14916.014916.033681.025332.0
Percentage of AreaOfRealEstateProperty0.00.00.00.0

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

us-gaap:AssetsFairValueDisclosure

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value199250230233253826150453755436024
Percentage of AssetsFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value34125224722917172107988376696535
Percentage of AssetsFairValueDisclosure171.0100.7107.298.167.888.7174.5193.6183.6205.8125.2150.159.4

us-gaap:AssetsFairValueDisclosure us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value5415034774624251551681481291131241099624
Percentage of AssetsFairValueDisclosure271.0200.7207.2198.1167.8188.7274.5293.6283.6305.8225.2250.1159.4100.0

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value37000.053000.086000.0175000.0264000.0206000.095000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax100.0100.0100.0100.0100.0100.0100.0

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax us-gaap:FinancialInstrument

us-gaap:CommercialPaper


Available
Period End2021-06-302021-03-312020-12-312019-12-31
Value11000.08000.05000.010000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax29.715.15.810.5

us-gaap:CorporateDebtSecurities


Available
Period End2021-06-302021-03-312020-12-312019-12-31
Value6000.07000.048000.042000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax16.213.255.844.2

us-gaap:USGovernmentSponsoredEnterprisesDebtSecurities


Available
Period End2021-06-302021-03-312020-12-312019-12-31
Value18000.024000.021000.026000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax48.645.324.427.4

us-gaap:USTreasurySecurities


Available
Period End2021-06-302021-03-312020-12-312019-12-31
Value2000.014000.012000.017000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax5.426.414.017.9

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax us-gaap:InvestmentType

us-gaap:CommercialPaper


Available
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value9000.08000.011000.010000.010000.015000.00
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax5.13.05.310.50.00.00.0

us-gaap:CorporateDebtSecurities


Available
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value107000.0164000.039000.042000.083000.0101000.012000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax61.162.118.944.20.00.00.0

us-gaap:USGovernmentSponsoredEnterprisesDebtSecurities


Available
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value23000.044000.063000.026000.09000.01000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax13.116.730.627.40.00.0

us-gaap:USTreasurySecurities


Available
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value36000.048000.093000.017000.018000.021000.00
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax20.618.245.117.90.00.00.0

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value57000.022000.017000.08000.028000.062000.06000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax100.0100.0100.0100.0100.0100.0100.0

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax us-gaap:FinancialInstrument

tndm:SupranationalBonds


Available
Period End2021-03-31
Value1000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax4.5

us-gaap:CommercialPaper


Available
Period End2021-06-302021-03-312020-12-31
Value2000.02000.01000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax3.59.15.9

us-gaap:CorporateDebtSecurities


Available
Period End2021-06-302021-03-312020-12-312019-12-31
Value13000.013000.013000.05000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax22.859.176.583.3

us-gaap:USGovernmentSponsoredEnterprisesDebtSecurities


Available
Period End2021-06-302021-03-312020-12-31
Value19000.06000.01000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax33.327.35.9

us-gaap:USTreasurySecurities


Available
Period End2021-06-302020-12-312019-12-31
Value23000.02000.01000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax40.411.816.7

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax us-gaap:InvestmentType

us-gaap:CommercialPaper


Available
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value1000.06000.0003000.0022000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax12.521.40.00.00.00.00.0

us-gaap:CorporateDebtSecurities


Available
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value6000.017000.062000.05000.05000.001000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax75.060.7100.083.30.00.00.0

us-gaap:USGovernmentSponsoredEnterprisesDebtSecurities


Available
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value1000.05000.0004000.00
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax12.517.90.00.00.00.0

us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis

us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value44639239033420385125
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis100.0100.0100.0100.0100.0100.0100.0

us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis us-gaap:FinancialInstrument

tndm:SupranationalBonds


Available
Period End2021-06-302021-03-31
Value3.013.015
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis0.70.8

us-gaap:CommercialPaper


Available
Period End2021-06-302021-03-312020-12-312019-12-31
Value22212610824
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis49.832.327.919.3

us-gaap:CorporateDebtSecurities


Available
Period End2021-06-302021-03-312020-12-312019-12-31
Value53668550
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis11.917.022.039.9

us-gaap:USGovernmentSponsoredEnterprisesDebtSecurities


Available
Period End2021-06-302021-03-312020-12-312019-12-31
Value63565233
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis14.114.313.426.4

us-gaap:USTreasurySecurities


Available
Period End2021-06-302021-03-312020-12-312019-12-31
Value10414014317
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis23.535.736.714.3

us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis us-gaap:InvestmentType

us-gaap:CommercialPaper


Available
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value94671724242353
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis28.132.920.319.30.00.00.0

us-gaap:CorporateDebtSecurities


Available
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value102813550515715
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis30.740.241.239.90.00.00.0

us-gaap:USGovernmentSponsoredEnterprisesDebtSecurities


Available
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value32222033212.75
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis9.611.223.726.40.00.0

us-gaap:USTreasurySecurities


Available
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value105321217129.69317
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis31.615.714.914.30.00.00.0

us-gaap:AvailableForSaleSecuritiesDebtSecurities

us-gaap:AvailableForSaleSecuritiesDebtSecurities


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value44639239033520385125
Percentage of AvailableForSaleSecuritiesDebtSecurities100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring, us-gaap:USTreasurySecurities


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-31
Value1041401431053217
Percentage of AvailableForSaleSecuritiesDebtSecurities23.535.736.731.615.714.4

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring, tndm:SupranationalBonds


Available
Period End2021-06-302021-03-31
Value3.013.014
Percentage of AvailableForSaleSecuritiesDebtSecurities0.70.8

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


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-31
Value5366851028150
Percentage of AvailableForSaleSecuritiesDebtSecurities11.917.022.030.740.239.9

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


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-31
Value635652322233
Percentage of AvailableForSaleSecuritiesDebtSecurities14.114.313.49.611.226.4

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

us-gaap:FairValueMeasurementsRecurring, tndm:SupranationalBonds


Available
Period End2021-06-302021-03-31
Value3.013.014
Percentage of AvailableForSaleSecuritiesDebtSecurities0.70.8

us-gaap:FairValueMeasurementsRecurring, us-gaap:CorporateDebtSecurities


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-31
Value5366851028150
Percentage of AvailableForSaleSecuritiesDebtSecurities11.917.022.030.740.239.9

us-gaap:FairValueMeasurementsRecurring, us-gaap:USGovernmentAgenciesDebtSecurities


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-31
Value635652322233
Percentage of AvailableForSaleSecuritiesDebtSecurities14.114.313.49.611.226.4

us-gaap:FairValueMeasurementsRecurring, us-gaap:USTreasurySecurities


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-31
Value1041401431053217
Percentage of AvailableForSaleSecuritiesDebtSecurities23.535.736.731.615.714.4

us-gaap:AvailableForSaleSecuritiesDebtSecurities us-gaap:FinancialInstrument

tndm:SupranationalBonds


Available
Period End2021-06-302021-03-31
Value3.013.014
Percentage of AvailableForSaleSecuritiesDebtSecurities0.70.8

us-gaap:CommercialPaper


Available
Period End2021-06-302021-03-312020-12-312019-12-31
Value22212610824
Percentage of AvailableForSaleSecuritiesDebtSecurities49.832.327.919.3

us-gaap:CorporateDebtSecurities


Available
Period End2021-06-302021-03-312020-12-312019-12-31
Value53668550
Percentage of AvailableForSaleSecuritiesDebtSecurities11.917.022.039.9

us-gaap:USGovernmentSponsoredEnterprisesDebtSecurities


Available
Period End2021-06-302021-03-312020-12-312019-12-31
Value63565233
Percentage of AvailableForSaleSecuritiesDebtSecurities14.114.313.426.4

us-gaap:USTreasurySecurities


Available
Period End2021-06-302021-03-312020-12-312019-12-31
Value10414014317
Percentage of AvailableForSaleSecuritiesDebtSecurities23.535.736.714.4

us-gaap:AvailableForSaleSecuritiesDebtSecurities us-gaap:InvestmentType

us-gaap:CommercialPaper


Available
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value94671724252353
Percentage of AvailableForSaleSecuritiesDebtSecurities28.132.920.319.30.00.00.0

us-gaap:CorporateDebtSecurities


Available
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value102813550515715
Percentage of AvailableForSaleSecuritiesDebtSecurities30.740.241.139.90.00.00.0

us-gaap:USGovernmentSponsoredEnterprisesDebtSecurities


Available
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value32222033212.751
Percentage of AvailableForSaleSecuritiesDebtSecurities9.611.223.726.40.00.0

us-gaap:USTreasurySecurities


Available
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value105321217129.71417
Percentage of AvailableForSaleSecuritiesDebtSecurities31.615.714.914.40.00.00.0

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

us-gaap:CashAndCashEquivalentsFairValueDisclosure

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring, us-gaap:CashEquivalents


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-31
Value941108712722158
Percentage of CashAndCashEquivalentsFairValueDisclosure100.0100.0100.0100.0100.0100.0

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


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-31
Value222126108946724
Percentage of CashAndCashEquivalentsFairValueDisclosure234.1114.6124.773.730.341.0

us-gaap:CashAndCashEquivalentsFairValueDisclosure us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument

us-gaap:FairValueMeasurementsRecurring, us-gaap:CashEquivalents


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-31
Value941108712722158
Percentage of CashAndCashEquivalentsFairValueDisclosure100.0100.0100.0100.0100.0100.0

us-gaap:FairValueMeasurementsRecurring, us-gaap:CommercialPaper


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-31
Value222126108946724
Percentage of CashAndCashEquivalentsFairValueDisclosure234.1114.6124.773.730.341.0

us-gaap:CashCashEquivalentsAndShortTermInvestments

us-gaap:CashCashEquivalentsAndShortTermInvestments


Cash
Period End2020-09-30
Value464
Percentage of CashCashEquivalentsAndShortTermInvestments100.0

us-gaap:CommonStockCapitalSharesReservedForFutureIssuance

us-gaap:CommonStockCapitalSharesReservedForFutureIssuance


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value1112129.9631112121313109.5639.7549.8979.081101.26512139.8581010109.1970929.3922919.4601819.6899418.5374888.715078.7741419.334635
Percentage of CommonStockCapitalSharesReservedForFutureIssuance100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CommonStockCapitalSharesReservedForFutureIssuance us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities

tndm:AuthorizedForFutureOptionGrants


Common
Period End2021-06-302021-03-312020-12-312019-12-312018-12-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value1.441.9572.0393.1430.9691.1891.3170.0970.0390.3972.1480.5622.0171652.0582912.0531011.9898042.1832332.1747492.7347731.985982
Percentage of CommonStockCapitalSharesReservedForFutureIssuance12.316.216.624.710.112.213.31.13.13.116.45.719.619.919.421.623.223.028.223.3

tndm:StockOptionsIssuedAndOutstanding


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value5.6915.7725.8045.8666.8026.6847.1757.3587.6187.6555.7695.6555.5581.2671.3310.9339.3377.5938.2286.7858036.7748156.7960785.7490155.6131835.6895575.1947245.011063
Percentage of CommonStockCapitalSharesReservedForFutureIssuance48.747.947.258.960.255.556.456.255.973.260.358.056.214.012.273.873.758.183.565.865.564.162.559.860.153.658.7

us-gaap:Grant


Common
Period End2020-09-302020-06-302020-03-312019-09-302019-06-30
Value2.1172.2562.9613.1653.453
Percentage of CommonStockCapitalSharesReservedForFutureIssuance21.220.024.624.225.3

us-gaap:RestrictedStockUnitsRSU


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-30
Value0.4530.1360.1330.1350.132
Percentage of CommonStockCapitalSharesReservedForFutureIssuance3.91.11.11.41.2

us-gaap:StockCompensationPlan


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value1.2891.3891.3891.4621.4621.6921.6921.8521.8522.0212.0212.1012.1010.1010.00.3890.0780.520420.520420.7707870.4682420.6058440.6058440.7704130.533866
Percentage of CommonStockCapitalSharesReservedForFutureIssuance11.011.511.314.712.914.113.314.213.619.321.121.521.21.10.03.00.85.05.07.35.16.56.48.06.3

us-gaap:Warrant


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value0.2510.2540.3790.3830.640.7050.710.710.710.7850.8040.8090.9217.6169.5530.2932.9282.9280.990.9900310.9900310.9900310.9900310.9900310.9900310.9900311.006577
Percentage of CommonStockCapitalSharesReservedForFutureIssuance2.12.13.13.85.75.95.65.45.27.58.48.39.383.987.823.223.122.410.09.69.69.310.810.510.510.211.8

us-gaap:ContractWithCustomerLiability us-gaap:TimingOfTransferOfGoodOrService

us-gaap:ContractWithCustomerLiability

us-gaap:TransferredOverTime


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value2118151311109.121
Percentage of ContractWithCustomerLiability100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerLiabilityNoncurrent us-gaap:TimingOfTransferOfGoodOrService

us-gaap:ContractWithCustomerLiabilityNoncurrent

us-gaap:TransferredOverTime


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value1311108.4997.5286.6265.656
Percentage of ContractWithCustomerLiabilityNoncurrent100.0100.0100.0100.0100.0100.0100.0

us-gaap:ConvertibleDebtNoncurrent

us-gaap:ConvertibleDebtNoncurrent


Convertible
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-31
Value2802802021991950.0
Percentage of ConvertibleDebtNoncurrent100.0100.0100.0100.0100.00.0

us-gaap:ConvertibleDebtNoncurrent us-gaap:CumulativeEffectPeriodOfAdoption, us-gaap:AdjustmentsForNewAccountingPronouncements

srt:CumulativeEffectPeriodOfAdoptionAdjustment, tndm:AccountingStandardsUpdate202006


Convertible
Period End2021-01-01
Value76
Percentage of ConvertibleDebtNoncurrent0.0

srt:CumulativeEffectPeriodOfAdoptionAdjustment, us-gaap:AccountingStandardsUpdate202006


Convertible
Period End2021-01-01
Value76
Percentage of ConvertibleDebtNoncurrent0.0

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

us-gaap:DebtInstrumentConvertibleCarryingAmountOfTheEquityComponent

tndm:ConvertibleSeniorNotes, us-gaap:ConvertibleDebt


Debt
Period End2020-12-312020-05-31
Value8585
Percentage of DebtInstrumentConvertibleCarryingAmountOfTheEquityComponent100.0100.0

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

us-gaap:DebtInstrumentFaceAmount

tndm:ConvertibleSeniorNotes, us-gaap:ConvertibleDebt


Debt
Period End2021-06-302020-12-312020-06-302020-05-31
Value287287287250
Percentage of DebtInstrumentFaceAmount100.0100.0100.0100.0

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

us-gaap:DebtInstrumentUnamortizedDiscount

tndm:ConvertibleSeniorNotes, us-gaap:ConvertibleDebt


Debt
Period End2020-12-31
Value79
Percentage of DebtInstrumentUnamortizedDiscount100.0

us-gaap:DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet

tndm:ConvertibleSeniorNotes, us-gaap:ConvertibleDebt


Debt
Period End2021-03-312020-12-312020-09-30
Value7.3328488
Percentage of DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet100.0100.0100.0

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

us-gaap:DeferredFinanceCostsNet

tndm:ConvertibleSeniorNotes, us-gaap:ConvertibleDebt


Deferred
Period End2021-06-302021-03-312020-12-31
Value6901000.07300000.05446000.0
Percentage of DeferredFinanceCostsNet100.0100.0100.0

us-gaap:DeferredIncomeTaxLiabilities

us-gaap:DeferredIncomeTaxLiabilities


Deferred
Period End2020-12-312019-12-312018-12-31
Value256.5960.0
Percentage of DeferredIncomeTaxLiabilities100.0100.00.0

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsGross


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value1471161231101371079363
Percentage of DeferredTaxAssetsGross100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsInProcessResearchAndDevelopment

us-gaap:DeferredTaxAssetsInProcessResearchAndDevelopment


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value6.848.74510121613107.686
Percentage of DeferredTaxAssetsInProcessResearchAndDevelopment100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsOperatingLossCarryforwards

us-gaap:DeferredTaxAssetsOperatingLossCarryforwards


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312015-03-312014-12-312013-12-31
Value8666858110079166947
Percentage of DeferredTaxAssetsOperatingLossCarryforwards100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsDomestic

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsDomestic


Deferred
Period End2020-12-31
Value340
Percentage of DeferredTaxAssetsOperatingLossCarryforwardsDomestic100.0

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal


Deferred
Period End2020-12-31
Value288
Percentage of DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal100.0

us-gaap:DeferredTaxAssetsOther

us-gaap:DeferredTaxAssetsOther


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value129.358.2383.9695.9314.1043.2723.188
Percentage of DeferredTaxAssetsOther100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxCreditCarryforwardsResearch

us-gaap:DeferredTaxAssetsTaxCreditCarryforwardsResearch


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312015-03-312014-12-312013-12-31
Value115.9314.9423.5172.5431.8322.92.9342.349
Percentage of DeferredTaxAssetsTaxCreditCarryforwardsResearch100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxCreditCarryforwardsResearch us-gaap:IncomeTaxAuthority

stpr:CA


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value117.96.35.34.63.93.2
Percentage of DeferredTaxAssetsTaxCreditCarryforwardsResearch101.2133.2127.5150.7180.9212.9109.1

us-gaap:DomesticCountry


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value7.52.85.74.44.13.42.8
Percentage of DeferredTaxAssetsTaxCreditCarryforwardsResearch66.647.2115.3125.1161.2185.695.4

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value2419138.809119.3096.4812.49
Percentage of DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesFinancingArrangements

us-gaap:DeferredTaxLiabilitiesFinancingArrangements


Deferred
Period End2020-12-31
Value11
Percentage of DeferredTaxLiabilitiesFinancingArrangements100.0

us-gaap:DeferredTaxLiabilitiesOther

us-gaap:DeferredTaxLiabilitiesOther


Deferred
Period End2020-12-312019-12-312018-12-31
Value6719000.02026000.00
Percentage of DeferredTaxLiabilitiesOther100.0100.00.0

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment


Deferred
Period End2020-12-312019-12-31
Value7675000.02026000.0
Percentage of DeferredTaxLiabilitiesPropertyPlantAndEquipment100.0100.0

us-gaap:EmployeeRelatedLiabilitiesCurrent

us-gaap:EmployeeRelatedLiabilitiesCurrent


Employee
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value3632343025222828231724171310141113111010109.538119.8548.6778.7899.7228.3677165.4978156.5749375.876011
Percentage of EmployeeRelatedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized


Employee
Period End2020-12-31
Value120
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized100.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue


Fair
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-10-172016-12-31
Value2.7892.5171417392523232529172012185.4326.4536.453
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization

us-gaap:Patents


Finite
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value3697000.02470000.02117000.01790000.01463000.01137000.0806000.0476000.0
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths


Finite
Period End2020-12-31
Value2200000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive


Finite
Period End2020-12-31
Value900000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearFive100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour


Finite
Period End2020-12-31
Value1900000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearFour100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree


Finite
Period End2020-12-31
Value1900000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearThree100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo


Finite
Period End2020-12-31
Value2000000.0
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo100.0

us-gaap:FiniteLivedIntangibleAssetsGross us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:FiniteLivedIntangibleAssetsGross

us-gaap:Patents


Finite
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value123.2473.2473.2473.2473.2473.2473.173
Percentage of FiniteLivedIntangibleAssetsGross100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InventoryRawMaterials

us-gaap:InventoryRawMaterials


Inventory
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-312015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value2227303634312012109.5856.6228.609101010109.3179.6169.375109.1328.0917.0856.0985.8316.26.363
Percentage of InventoryRawMaterials100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InventoryWorkInProcess

us-gaap:InventoryWorkInProcess


Inventory
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-312015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value16151514121416115.33.562.714.4893.1253.7613.8125.4976.586.1484.3953.3942.6293.2052.2883.8323.4131.9782.169
Percentage of InventoryWorkInProcess100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InvestmentOwnedAtCost

us-gaap:InvestmentOwnedAtCost


Investment
Period End2021-06-30
Value8100000.0
Percentage of InvestmentOwnedAtCost100.0

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value9129000.09129000.09421000.09421000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths100.0100.0100.0100.0

us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear

us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear


Lessee
Period End2021-06-302021-03-312020-09-30
Value4742000.07096000.02314000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear100.0100.0100.0

us-gaap:LettersOfCreditOutstandingAmount

us-gaap:LettersOfCreditOutstandingAmount


Letters
Period End2020-12-31
Value500000.0
Percentage of LettersOfCreditOutstandingAmount100.0

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

us-gaap:LiabilitiesFairValueDisclosure

us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsRecurring


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value2.7892.51714173925232325291720125.432
Percentage of LiabilitiesFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LiabilitiesFairValueDisclosure us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value2.7892.51714173925232325291720125.911
Percentage of LiabilitiesFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0108.8

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

us-gaap:LongTermDebtFairValue

tndm:ConvertibleSeniorNotes, us-gaap:FairValueInputsLevel2, us-gaap:ConvertibleDebt


Long
Period End2021-06-302021-03-312020-12-312020-09-30
Value326306333367
Percentage of LongTermDebtFairValue100.0100.0100.0100.0

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value5.65.65.95.90.0630.0630.066
Percentage of OperatingLeaseWeightedAverageDiscountRatePercent100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingLossCarryforwards us-gaap:StatementGeographical

us-gaap:OperatingLossCarryforwards

stpr:CA


Operating
Period End2020-12-31
Value164
Percentage of OperatingLossCarryforwards100.0

us-gaap:ProductWarrantyAccrual

us-gaap:ProductWarrantyAccrual


Product
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-31
Value252322181716161614109.1387.7366.326.0865.644.754.7825.2495.695.1334.6494.2493.5473.0133.0112.4721.9741.310.9020.8051.1230.3
Percentage of ProductWarrantyAccrual100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProductWarrantyAccrualClassifiedCurrent

us-gaap:ProductWarrantyAccrualClassifiedCurrent


Product
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value9795000.09316000.08409000.06964000.06605000.06427000.04707000.04206000.02596000.02302000.01050000.0535000.0549000.0
Percentage of ProductWarrantyAccrualClassifiedCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProductWarrantyAccrualNoncurrent

us-gaap:ProductWarrantyAccrualNoncurrent


Product
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value151313111110124.9323.0443.3882.4971.4390.574
Percentage of ProductWarrantyAccrualNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PurchaseObligation

us-gaap:PurchaseObligation


Purchase
Period End2020-12-31
Value90
Percentage of PurchaseObligation100.0

us-gaap:PurchaseObligationDueInNextTwelveMonths

us-gaap:PurchaseObligationDueInNextTwelveMonths


Purchase
Period End2020-12-31
Value85
Percentage of PurchaseObligationDueInNextTwelveMonths100.0

us-gaap:RestrictedCash

us-gaap:RestrictedCash


Restricted
Period End2021-03-31
Value8000000.0
Percentage of RestrictedCash100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue

us-gaap:RestrictedStockUnitsRSU


Share
Period End2020-12-31
Value82.82
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice


Share
Period End2020-12-31
Value40.3
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value2681811160.01.593192380
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue100.0100.0100.00.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue


Share
Period End2020-12-31
Value266
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice


Share
Period End2020-12-31
Value51.93
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice100.0

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueOutstanding us-gaap:AwardType

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueOutstanding

us-gaap:RestrictedStockUnitsRSU


Sharebased
Period End2020-12-31
Value12
Percentage of SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueOutstanding100.0

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1


Sharebased
Period End2020-12-31
Value178
Percentage of SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1100.0

us-gaap:UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate

us-gaap:UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate


Unrecognized
Period End2020-12-31
Value8600000.0
Percentage of UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate100.0

us-gaap:WarrantsAndRightsOutstanding us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:WarrantsAndRightsOutstanding

us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsRecurring


Warrants
Period End2020-12-312019-12-31
Value1423
Percentage of WarrantsAndRightsOutstanding100.0100.0

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

us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsRecurring, us-gaap:Warrant


Warrants
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-31
Value2.7892.51714173923
Percentage of WarrantsAndRightsOutstanding0.00.0100.00.00.0100.0

us-gaap:WarrantsAndRightsOutstanding us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring


Warrants
Period End2020-12-312019-12-31
Value1423
Percentage of WarrantsAndRightsOutstanding100.0100.0

us-gaap:WarrantsAndRightsOutstanding us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument

us-gaap:FairValueMeasurementsRecurring, us-gaap:Warrant


Warrants
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-31
Value2.7892.51714173923
Percentage of WarrantsAndRightsOutstanding0.00.0100.00.00.0100.0

us-gaap:WarrantsAndRightsOutstandingMeasurementInput us-gaap:ClassOfWarrantOrRight, us-gaap:MeasurementInputType

us-gaap:WarrantsAndRightsOutstandingMeasurementInput

tndm:CommonStockWarrantExpiringOctober2022, us-gaap:MeasurementInputPriceVolatility


Warrants
Period End2021-06-302021-03-312020-12-312020-09-302019-12-31
Value50.354.055.364.177.2
Percentage of WarrantsAndRightsOutstandingMeasurementInput100.0100.0100.0100.0100.0

tndm:CommonStockWarrantExpiringOctober2022, us-gaap:MeasurementInputRiskFreeInterestRate


Warrants
Period End2021-06-302021-03-312020-12-312020-09-302019-12-31
Value0.10.10.10.11.6
Percentage of WarrantsAndRightsOutstandingMeasurementInput0.20.20.20.22.1

Line plots across dimensions of each concept


us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities
(None,)
Antidilutive Securities Excluded From Computation Of Earnings Per Share Amountus-gaap: Antidilutive Securities Excluded From Computation Of Earnings Per Share By Antidilutive Securities
TTM Greenblatt ROC
_
(None,)
T T M  Greenblatt  R O C_
us-gaap:AllocatedShareBasedCompensationExpense
us-gaap:IncomeStatementLocation
(None,)
Allocated Share Based Compensation Expenseus-gaap: Income Statement Location
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:StatementGeographical
(None,)
Revenue From Contract With Customer Excluding Assessed Taxus-gaap: Statement Geographical
us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents
(None,)
Stockholders Equityus-gaap: Statement Equity Components
us-gaap:PropertyPlantAndEquipmentGross
us-gaap:PropertyPlantAndEquipmentByType
(None,)
Property Plant And Equipment Grossus-gaap: Property Plant And Equipment By Type
us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents
(None,)
Stockholders Equityus-gaap: Statement Equity Components