TER


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

Table of contents



us-gaap:CommonStockValue
us-gaap:StatementClassOfStock
us-gaap:SharesIssued
us-gaap:StatementEquityComponents

us-gaap:CommonStockSharesIssued

us-gaap:CommonStockSharesAuthorized

us-gaap:CommonStockSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:CostOfGoodsAndServicesSold
us-gaap:ProductOrService

us-gaap:CostOfRevenue

us-gaap:GrossProfit

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
us-gaap:StatementBusinessSegments

us-gaap:IncomeTaxExpenseBenefit

us-gaap:InterestExpense

us-gaap:InterestExpenseDebt

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:OperatingExpenses

us-gaap:OperatingIncomeLoss

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossNetOfTax
us-gaap:StatementEquityComponents

us-gaap:OtherNonoperatingIncomeExpense
us-gaap:IncomeStatementLocation, us-gaap:StatementBusinessSegments

us-gaap:ProfitLoss

us-gaap:ResearchAndDevelopmentExpenseExcludingAcquiredInProcessCost

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:ProductOrService

us-gaap:Revenues
us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments
us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments, us-gaap:TimingOfTransferOfGoodOrService
us-gaap:ProductOrService
us-gaap:StatementBusinessSegments
us-gaap:StatementBusinessSegments, us-gaap:TimingOfTransferOfGoodOrService
us-gaap:StatementGeographical
us-gaap:StatementGeographical, us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments
us-gaap:StatementGeographical, us-gaap:StatementBusinessSegments
us-gaap:TimingOfTransferOfGoodOrService

us-gaap:SellingGeneralAndAdministrativeExpense

us-gaap:Assets
us-gaap:StatementBusinessSegments

us-gaap:Liabilities

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents

us-gaap:AssetsCurrent

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:AccountsReceivableNetCurrent

us-gaap:InventoryNet

us-gaap:PrepaidExpenseAndOtherAssetsCurrent

us-gaap:Land

us-gaap:MachineryAndEquipmentGross
us-gaap:PropertyPlantAndEquipmentByType

us-gaap:NoncurrentAssets
us-gaap:StatementGeographical

us-gaap:PropertyPlantAndEquipmentGross

us-gaap:FurnitureAndFixturesGross

us-gaap:LeaseholdImprovementsGross

us-gaap:ConstructionInProgressGross

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
us-gaap:PropertyPlantAndEquipmentByType

us-gaap:AmortizationOfIntangibleAssets

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:Goodwill
us-gaap:BusinessAcquisition
us-gaap:StatementBusinessSegments

us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:FiniteLivedIntangibleAssetsNet
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:DeferredTaxAssetsLiabilitiesNet

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OtherAssetsNoncurrent

us-gaap:AccountsPayableCurrent

us-gaap:AccruedIncomeTaxesCurrent

us-gaap:LiabilitiesCurrent

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OtherAccruedLiabilitiesCurrent

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:OperatingLeaseLiability

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents

us-gaap:CommonStockValue

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:TreasuryStockValue

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
us-gaap:StatementEquityComponents

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:DeferredIncomeTaxExpenseBenefit

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:PaymentsOfDividends

us-gaap:PaymentsForRepurchaseOfCommonStock

us-gaap:EffectiveIncomeTaxRateContinuingOperations

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
us-gaap:TitleOfIndividual, us-gaap:AwardType

us-gaap:DeferredTaxAssetsNet

us-gaap:UnrecognizedTaxBenefits
us-gaap:IncomeTaxAuthority

us-gaap:DeferredTaxAssetsValuationAllowance
us-gaap:DebtInstrument
ter:AntidilutionAdjustmentsOfConvertibleNoteHedges
us-gaap:BusinessAcquisition, us-gaap:ValuationTechnique
ter:ContingentConsiderationFairValueAssumptionsExpectedVolatilityRate
us-gaap:BusinessAcquisition, us-gaap:ValuationTechnique
ter:ContingentConsiderationFairValueInputsDiscountRate

ter:ContractualInterestExpenseOnCoupon
us-gaap:StatementBusinessSegments
ter:CostOfRevenuesProvisionForExcessAndObsoleteInventory
us-gaap:AwardType, us-gaap:MeasurementInputType
ter:DividendsPerShare

ter:EffectiveIncomeTaxRateReconciliationEffectOfTaxCustsAndJobsActPercent

ter:EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017TransitionTax
us-gaap:StatementEquityComponents
ter:ExerciseOfConvertibleNotesHedgeCallOptions

ter:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityForeignCurrencyExchangeRateImpact

ter:ForeignCurrencyTransactionGainUnrealized

ter:ForeignCurrencyTransactionlossUnrealized

ter:GainLossOnConvertibleDebtConversion

ter:IncreaseDecreaseInUncertainTaxPosition
us-gaap:DebtInstrument
ter:PaymentsForConvertibleNoteHedgeNetFinancingActivities
us-gaap:TitleOfIndividual, us-gaap:AwardType
ter:ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingPercentageUponOneYearAnniversaryOfDateOfGrant
us-gaap:StatementEquityComponents
ter:SharesOfStockIssuedDuringPeriodShareBasedCompensationNetOfSharesWithheldForTaxes

ter:StockIssuedDuringPeriodValueShareBasedCompensationNetOfSharesWithheldForTaxes
us-gaap:StatementEquityComponents
us-gaap:ShareRepurchaseProgram
ter:StockRepurchasedDuringPeriodValueExcludingUnsettledShares

us-gaap:AdjustmentForAmortization

us-gaap:AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt
us-gaap:StatementEquityComponents

us-gaap:AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebtSubsequentAdjustments
us-gaap:StatementEquityComponents

us-gaap:AmortizationOfDebtDiscountPremium

us-gaap:AvailableForSaleSecuritiesGrossRealizedGains

us-gaap:AvailableForSaleSecuritiesGrossRealizedLosses

us-gaap:BusinessCombinationAcquisitionRelatedCosts
us-gaap:BusinessAcquisition
us-gaap:IncomeStatementLocation, us-gaap:StatementBusinessSegments
us-gaap:StatementBusinessSegments

us-gaap:BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1
us-gaap:BusinessAcquisition
us-gaap:BusinessAcquisition, us-gaap:IncomeStatementLocation, us-gaap:StatementBusinessSegments
us-gaap:BusinessAcquisition, us-gaap:LossContingenciesByNatureOfContingency
us-gaap:ProductOrService, us-gaap:BusinessAcquisition
us-gaap:StatementBusinessSegments

us-gaap:CapitalExpendituresIncurredButNotYetPaid

us-gaap:CommonStockDividendsPerShareCashPaid

us-gaap:CommonStockDividendsPerShareDeclared

us-gaap:ContractWithCustomerLiabilityRevenueRecognized
us-gaap:DebtInstrument, us-gaap:SubsequentEventType
us-gaap:DebtConversionConvertedInstrumentAmount1
us-gaap:DebtInstrument
us-gaap:DebtInstrumentConvertibleBeneficialConversionFeature
us-gaap:BalanceSheetLocation
us-gaap:DebtInstrumentConvertibleIfConvertedValueInExcessOfPrincipal
us-gaap:BalanceSheetLocation, us-gaap:SubsequentEventType

us-gaap:DeferredRevenueRevenueRecognized1

us-gaap:DefinedBenefitPlanActuarialGainLoss
ter:PensionPlanOne, us-gaap:RetirementPlanName
us-gaap:DefinedBenefitPlanActuarialGainLossImmediateRecognitionAsComponentInNetPeriodicBenefitCostCredit

us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses
us-gaap:RetirementPlanSponsorLocation
us-gaap:RetirementPlanType
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit
ter:PensionPlanOne, us-gaap:RetirementPlanName
us-gaap:DefinedBenefitPlanBenefitObligationIncreaseDecreaseForRemeasurementDueToSettlement
us-gaap:RetirementPlanName
us-gaap:DefinedBenefitPlanContributionsByEmployer
us-gaap:RetirementPlanSponsorLocation
us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets
us-gaap:RetirementPlanSponsorLocation
us-gaap:DefinedBenefitPlanInterestCost
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation
us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation
us-gaap:DefinedBenefitPlanRecognizedNetGainLossDueToCurtailments
us-gaap:RetirementPlanSponsorLocation
us-gaap:DefinedBenefitPlanServiceCost
us-gaap:RetirementPlanType

us-gaap:Depreciation

us-gaap:DividendsCash
us-gaap:StatementEquityComponents

us-gaap:EffectOfExchangeRateOnCashAndCashEquivalents

us-gaap:EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate

us-gaap:EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential

us-gaap:EffectiveIncomeTaxRateReconciliationOtherAdjustments

us-gaap:EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitPercent

us-gaap:EffectiveIncomeTaxRateReconciliationTaxContingencies

us-gaap:EffectiveIncomeTaxRateReconciliationTaxCredits

us-gaap:EquitySecuritiesFvNiUnrealizedGainLoss

us-gaap:ExtendedProductWarrantyAccrualPayments

us-gaap:ExtendedProductWarrantyAccrualWarrantiesIssued

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings
us-gaap:BusinessAcquisition

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements

us-gaap:FairValueOfAssetsAcquired

us-gaap:FiniteLivedIntangibleAssetsForeignCurrencyTranslationGainLoss
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:ForeignCurrencyTransactionGainLossUnrealized
us-gaap:DerivativeInstrumentRisk
us-gaap:IncomeStatementLocation
us-gaap:GainLossOnForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments

us-gaap:GainLossOnSaleOfInvestments

us-gaap:GoodwillForeignCurrencyTranslationGainLoss
us-gaap:StatementBusinessSegments

us-gaap:IncomeTaxExaminationPenaltiesAndInterestExpense

us-gaap:IncomeTaxHolidayIncomeTaxBenefitsPerShare

us-gaap:IncomeTaxReconciliationTaxHolidays

us-gaap:IncreaseDecreaseInAccountsPayableAndOtherOperatingLiabilities

us-gaap:IncreaseDecreaseInContractWithCustomerLiability

us-gaap:IncreaseDecreaseInIncomeTaxes

us-gaap:IncreaseDecreaseInPensionAndPostretirementObligations

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets

us-gaap:IncrementalCommonSharesAttributableToCallOptionsAndWarrants

us-gaap:IncrementalCommonSharesAttributableToConversionOfDebtSecurities

us-gaap:IncrementalCommonSharesAttributableToEquityUnitPurchaseAgreements
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities
us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements

us-gaap:InventoryWriteDown

us-gaap:InvestmentIncomeInterest
us-gaap:StatementBusinessSegments
us-gaap:LossOnContractTermination

us-gaap:OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax

us-gaap:OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditTax

us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax
us-gaap:StatementEquityComponents
us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax
us-gaap:StatementEquityComponents
us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax
us-gaap:StatementEquityComponents
us-gaap:OtherComprehensiveIncomeLossTax

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax

us-gaap:OtherIncreaseDecreaseInEnvironmentalLiabilities

us-gaap:OtherNoncashIncomeExpense

us-gaap:OtherRestructuringCosts
us-gaap:ProductOrService
us-gaap:StatementBusinessSegments

us-gaap:PaymentForContingentConsiderationLiabilityFinancingActivities
us-gaap:BusinessAcquisition

us-gaap:PaymentsForProceedsFromLifeInsurancePolicies

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:PaymentsToAcquireAvailableForSaleSecurities

us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired

us-gaap:ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions

us-gaap:ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities

us-gaap:ProceedsFromSaleOfAvailableForSaleSecurities

us-gaap:ProductWarrantyAccrualPayments

us-gaap:ProductWarrantyAccrualPreexistingIncreaseDecrease

us-gaap:ProductWarrantyAccrualWarrantiesIssued
us-gaap:StatementEquityComponents
us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax

us-gaap:ReclassificationFromAociCurrentPeriodTax
us-gaap:StatementEquityComponents

us-gaap:RepaymentsOfConvertibleDebt

us-gaap:RestructuringSettlementAndImpairmentProvisions
us-gaap:StatementBusinessSegments

us-gaap:SalesTypeLeaseRevenue

us-gaap:SeveranceCosts1
us-gaap:StatementBusinessSegments
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
us-gaap:TitleOfIndividual, us-gaap:AwardType
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate
us-gaap:AwardType
us-gaap:AwardType, us-gaap:FinancialInstrument
us-gaap:FinancialInstrument
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate
us-gaap:TitleOfIndividual, us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
us-gaap:AwardType, us-gaap:Vesting
us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage
us-gaap:AwardType
us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent
us-gaap:StatementClassOfStock
us-gaap:StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities
us-gaap:StatementEquityComponents
us-gaap:StatementClassOfStock
us-gaap:StockIssuedDuringPeriodSharesConversionOfUnits

us-gaap:StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans
us-gaap:SubsequentEventType

us-gaap:StockIssuedDuringPeriodValueConversionOfConvertibleSecurities
us-gaap:StatementEquityComponents
us-gaap:BalanceSheetLocation
us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised

us-gaap:StockRepurchasedDuringPeriodShares
us-gaap:StatementEquityComponents

us-gaap:StockRepurchasedDuringPeriodValue
us-gaap:StatementEquityComponents

us-gaap:TreasuryStockAcquiredAverageCostPerShare

us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment

ter:AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentTax

ter:AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansTax
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
ter:CashAndCashEquivalentsAndAvailableForSaleSecuritiesFairValueDisclosure
us-gaap:FairValueByMeasurementFrequency

ter:ContractManufacturerAndSupplierPrepayments

ter:DeferredRevenueAndCustomerAdvances

ter:DeferredRevenueAndCustomerAdvancesCurrent

ter:DeferredRevenueAndCustomerAdvancesMaintenanceServiceAndTraining

ter:DeferredRevenueAndCustomerAdvancesUndeliveredElementsAndOther

ter:DeferredTaxAssetsTaxDeferredExpenseLeaseLiability

ter:DeferredTaxLiabilitiesContingentConsideration

ter:DeferredTaxLiabilitiesRightOfUseAssets
us-gaap:RetirementPlanSponsorLocation
ter:PensionAndOtherPostretirementDefinedBenefitPlansAccruedEmployeesCompensationAndWithholdingsCurrentAndNoncurrent
us-gaap:RetirementPlanType

ter:PrepaidMaintenanceAndOtherServices
us-gaap:AwardType
ter:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedAndExpectedToVestIntrinsicValue

ter:UnrecognizedTaxBenefitsIfRecognizedWouldImpactDeferredTaxes

us-gaap:AccountsAndNotesReceivableNet

us-gaap:AccruedIncomeTaxesNoncurrent

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

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

us-gaap:AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
us-gaap:InvestmentType

us-gaap:AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
us-gaap:InvestmentType

us-gaap:AvailableForSaleSecuritiesAmortizedCost
us-gaap:InvestmentType

us-gaap:AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue
us-gaap:InvestmentType

us-gaap:AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue

us-gaap:AvailableForSaleSecuritiesCurrent

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDate

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost

us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue
us-gaap:InvestmentType
us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:InvestmentType
us-gaap:AvailableForSaleSecuritiesEquitySecurities
us-gaap:FairValueByMeasurementFrequency, us-gaap:InvestmentType

us-gaap:AvailableForSaleSecuritiesNoncurrent

us-gaap:BuildingsAndImprovementsGross
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueHigh
us-gaap:BusinessAcquisition, us-gaap:ContingentConsiderationByType, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:ValuationTechnique
us-gaap:BusinessCombinationContingentConsiderationLiability
us-gaap:BusinessAcquisition, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:ValuationTechnique
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueByMeasurementFrequency

us-gaap:BusinessCombinationContingentConsiderationLiabilityNoncurrent
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:InvestmentType
us-gaap:CashAndCashEquivalentsFairValueDisclosure
us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueByMeasurementFrequency, us-gaap:InvestmentType

us-gaap:ConvertibleDebt
us-gaap:DebtInstrument

us-gaap:ConvertibleDebtCurrent
us-gaap:FairValueByMeasurementBasis
us-gaap:ConvertibleDebtFairValueDisclosures

us-gaap:ConvertibleDebtNoncurrent
us-gaap:DebtInstrument
us-gaap:DebtInstrument
us-gaap:DebtInstrumentConvertibleConversionPrice1
us-gaap:DebtInstrument
us-gaap:DebtInstrumentFaceAmount
us-gaap:DebtInstrument
us-gaap:DebtInstrumentUnamortizedDiscount
us-gaap:DebtInstrument
us-gaap:DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet

us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss

us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss
us-gaap:DebtInstrument
us-gaap:DeferredFinanceCostsNet

us-gaap:DeferredIncomeTaxAssetsNet

us-gaap:DeferredIncomeTaxLiabilities

us-gaap:DeferredRevenueNoncurrent

us-gaap:DeferredTaxAndOtherLiabilitiesNoncurrent

us-gaap:DeferredTaxAssetsDeferredIncome

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsInventory

us-gaap:DeferredTaxAssetsOperatingLossCarryforwards

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsDomestic
us-gaap:TaxPeriod

us-gaap:DeferredTaxAssetsOther

us-gaap:DeferredTaxAssetsTaxCreditCarryforwards

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsCompensatedAbsences

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals

us-gaap:DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets

us-gaap:DeferredTaxLiabilitiesInvestments

us-gaap:DeferredTaxLiabilitiesOther

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment
us-gaap:RetirementPlanSponsorLocation
us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation

us-gaap:DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent
us-gaap:RetirementPlanSponsorLocation
us-gaap:RetirementPlanName
us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate
us-gaap:RetirementPlanSponsorLocation
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation
us-gaap:DefinedBenefitPlanBenefitObligation
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree
us-gaap:RetirementPlanType
us-gaap:RetirementPlanSponsorLocation
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo
us-gaap:RetirementPlanType
us-gaap:RetirementPlanName
us-gaap:DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear

us-gaap:DefinedBenefitPlanFairValueOfPlanAssets
us-gaap:RetirementPlanSponsorLocation
us-gaap:DefinedBenefitPlanFundedStatusOfPlan
us-gaap:RetirementPlanType
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanHealthCareCostTrendRateAssumedNextFiscalYear
us-gaap:RetirementPlanSponsorLocation
us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation
us-gaap:RetirementPlanSponsorLocation
us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets
us-gaap:RetirementPlanSponsorLocation
us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation
us-gaap:DefinedBenefitPlanByPlanAssetCategories, us-gaap:InvestmentType
us-gaap:DefinedBenefitPlanPlanAssetsTargetAllocationPercentage
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanUltimateHealthCareCostTrendRate1
us-gaap:DefinedBenefitPlanByPlanAssetCategories, us-gaap:RetirementPlanSponsorLocation
us-gaap:DefinedBenefitPlanWeightedAverageAssetAllocations
us-gaap:RetirementPlanSponsorLocation

us-gaap:DerivativeAssetNotionalAmount
us-gaap:Currency
us-gaap:Currency, us-gaap:Position
us-gaap:Position
us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation
us-gaap:DerivativeAssets
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueByMeasurementFrequency

us-gaap:DerivativeAssetsLiabilitiesAtFairValueNet
us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation
us-gaap:DerivativeLiabilities
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueByMeasurementFrequency
us-gaap:Currency
us-gaap:DerivativeLiabilityNotionalAmount
us-gaap:Currency, us-gaap:Position
us-gaap:Position

us-gaap:DividendsPayableAmountPerShare

us-gaap:EmployeeRelatedLiabilitiesCurrent

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized

us-gaap:ExtendedProductWarrantyAccrual

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo

us-gaap:FiniteLivedIntangibleAssetsGross
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:GoodwillGross
us-gaap:StatementBusinessSegments

us-gaap:GoodwillImpairedAccumulatedImpairmentLoss
us-gaap:StatementBusinessSegments

us-gaap:InventoryFinishedGoodsNetOfReserves

us-gaap:InventoryRawMaterialsNetOfReserves

us-gaap:InventoryValuationReserves

us-gaap:InventoryWorkInProcessNetOfReserves

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths
us-gaap:BalanceSheetLocation, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:LiabilitiesFairValueDisclosure
us-gaap:BalanceSheetLocation, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:InvestmentType
us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency, us-gaap:InvestmentType

us-gaap:LiabilityForUncertainTaxPositionsCurrent

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent

us-gaap:OtherAccruedLiabilitiesNoncurrent

us-gaap:OtherPrepaidExpenseCurrent

us-gaap:PensionAndOtherPostretirementAndPostemploymentBenefitPlansLiabilitiesCurrentAndNoncurrent
us-gaap:RetirementPlanSponsorLocation
us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesCurrentAndNoncurrent
us-gaap:RetirementPlanType

us-gaap:PrepaidExpenseCurrent

us-gaap:PrepaidTaxes

us-gaap:ProductWarrantyAccrual

us-gaap:PurchaseObligation

us-gaap:PurchaseObligationDueInNextTwelveMonths

us-gaap:RedeemableNoncontrollingInterestEquityCommonCarryingAmount
us-gaap:BalanceSheetLocation

us-gaap:RevenueRemainingPerformanceObligation
us-gaap:ContractWithCustomerDuration
us-gaap:ContractWithCustomerDuration
us-gaap:RevenueRemainingPerformanceObligationPercentage
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber

us-gaap:SharePrice
us-gaap:AwardType
us-gaap:AwardType
us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueOutstanding

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1
us-gaap:Range
us-gaap:StockRepurchaseProgramAuthorizedAmount1

us-gaap:TreasuryStockShares

us-gaap:UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued

us-gaap:UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate
us-gaap:ValuationAllowancesAndReservesType
us-gaap:ValuationAllowancesAndReservesBalance

Plots across concepts


IncomeStatement
Other Comprehensive Income Loss 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
Inventory Net
NonCurrent Assets
Other Assets Noncurrent
PropertyPlantAndEquipmentNet
Property Plant And Equipment Net
Liabilities
Operating Lease Liability
Current Liabilities
Operating Lease Liability Current
Stockholders Equity
Accumulated Other Comprehensive Income Loss Net Of Tax
Per Share
Income Tax Holiday Income Tax Benefits Per Share
CashFlow
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInOperatingActivities
Increase Decrease In Inventories
NetCashProvidedByUsedInInvestingActivities
Payments To Acquire Businesses Net Of Cash Acquired
NetCashProvidedByUsedInFinancingActivities
Net Cash Provided By Used In Financing Activities
Shares
Treasury Stock Shares
DividendsAndRepurchase
Dividends Cash
OperatingLeaseLiability
Operating Lease Liability Current
LesseeOperatingLeaseLiabilityPaymentsDue
Lessee Operating Lease Liability Undiscounted Excess Amount
FiniteLivedIntangibleAssets
Finite Lived Intangible Assets Accumulated Amortization
InventoryNet
Inventory Work In Process Net Of Reserves
AccountsReceivable
Allowance For Doubtful Accounts Receivable Current

Tables

  2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-312020-03-292019-12-312019-09-302019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-06-302012-04-012012-03-312011-12-312011-10-022011-09-302011-07-032011-06-302011-04-032011-03-312010-12-312010-10-032010-07-042010-04-04
us-gaap:CommonStockValue ▁█▆▅▄20.6820.80220.76520.75520.725NA20.74220.801NA21.06121.30521.54421.9422.91123.49524.22624.44424.58924.7524.9524.89725.20525.35525.46225.45525.90426.56326.98827.07727.0624.5424.25323.96623.92523.8423.80323.48823.45623.402NA23.302NA22.94823.015NA23.25NA23.156NA22.755NANANA
 us-gaap:SharesIssued us-gaap:StatementClassOfStock us-gaap:ConvertibleCommonStock█▁▂21.3861.2333.787NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:SharesIssued us-gaap:StatementEquityComponents us-gaap:CommonStock▁█▆▅▄165.444166.419166.123166.043165.806NA165.938166.41NA168.49170.436172.353175.522183.289187.962193.808195.548NANANA199.177NANANA203.641NANANA216.613NANANA191.731NANANA187.908NANANANANA183.587NANANANANANA182.035NANANA
us-gaap:CommonStockSharesIssued ████▁165.444166.419166.123166.0430.165806NA165.938166.41NA168.49170.436172.353175.522183.289187.962193.808195.548196.711197.999199.596199.177201.643202.841203.707203.641207.24212.507215.902216.613216.482196.321194.019191.731191.399190.721190.422187.908187.651187.213NA186.418NA183.5870.184122NA0.186002NA185.25NA182.035NANANA
us-gaap:CommonStockSharesAuthorized ▄▄▄▄▄1000.01000.01000.01000.01000.0NA1000.01000.0NA1000.01000.01000.01000.01000.01000.01000.01000.01000.01000.01000.01000.01000.01000.01000.01000.01000.01000.01000.01000.01000.01000.01000.01000.01000.01000.01000.01000.01000.01000.0NA1000.0NA1000.01.0NA1.0NA1000.0NA1000.0NANANA
us-gaap:CommonStockSharesOutstanding ████▁165.444166.419166.123166.0430.165806NA165.938166.41NA168.49170.436172.353175.522183.289187.962193.808195.548196.711197.999199.596199.177201.643202.841203.707203.641207.24212.507215.902216.613216.482196.321194.019191.731191.399190.721190.422187.908187.651187.213NA186.418NA183.5870.184122NA0.186002NA185.25NA182.035NANANA
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding ▁█186.75187.74NA184.338180.257NA180.736NANA180.494178.59176.972NA190.505194.909203.484NA200.775201.529201.936NA203.929203.018205.732NA211.736215.496218.812NA218.333216.568236.484NA235.828234.909234.757NA229.21229.646NA231.153NANA221.892NA230.452NA232.08NANA229.389231.541226.277
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic ▁█165.995166.491NA166.014165.789NA166.589NANA169.641171.241173.532NA185.744190.73195.255NA197.485198.774200.005NA202.211203.018204.271NA210.032213.845217.187NA207.381194.408193.311NA191.307190.569189.686NA187.364186.573NA185.838NANA185.102NA185.367NA184.72NANA181.239179.99176.867
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount NANANA0.10.1NA0.3NANA0.10.20.6NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:EarningsPerShareBasic █▂▁▃▁1.981.231.181.341.14NA1.060.750.80.80.570.630.80.650.530.45-0.540.520.880.430.330.32-1.10.240.00.340.480.15-0.480.40.520.00.120.360.350.03-0.090.470.60.60.180.180.70.30.310.480.470.510.520.329999999999999850.810.680.28
us-gaap:EarningsPerShareDiluted █▁▁▃▁1.761.091.051.211.05NA0.970.690.750.750.550.620.790.630.520.43-0.540.520.870.420.330.31-1.10.240.00.340.480.15-0.480.380.470.00.090.290.280.03-0.090.390.490.490.150.150.580.250.260.390.380.410.420.280.660.550.24
  2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-312020-03-292019-12-312019-09-302019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-06-302012-04-012012-03-312011-12-312011-10-022011-09-302011-07-032011-06-302011-04-032011-03-312010-12-312010-10-032010-07-042010-04-04
 COGS Ratio us-gaap:ProductOrService us-gaap:Product█▁▁▂▃951.945660.508647.625697.745734.63NA610.906548.552488.17488.17457.511393.442420.652470.994434.051403.925388.282412.854610.356373.204NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 COGS Ratio us-gaap:ProductOrService us-gaap:Service█▅▃▅▁133.783121.098111.343121.739104.031NA93.449106.09893.86893.868106.667100.65798.90695.85492.87883.54291.13390.52486.54583.709NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 EBT Margin us-gaap:StatementBusinessSegments ter:IndustrialAutomation█▅█▃▁92.18679.95191.93968.71158.776NA60.30588.386NA68.89274.72666.13699.14449.60662.05748.83454.38440.06339.33736.27233.67823.50525.10216.74622.11216.0573.723NANANANANANANANANANANANANANANANANANANANANANANANANANA
 EBT Margin us-gaap:StatementBusinessSegments ter:SemiconductorTest█▁▁▃▄833.976528.063523.82592.141659.147NA484.489439.082NA397.737374.898340.853341.705417.297360.088373.328316.989396.881593.152355.528270.561322.021435.323340.264204.782325.516400.315270.917237.536380.083421.434261.737214.973304.131292.431211.506184.101310.979365.058NA267.588NA202.451241.394NA343.096NA319.25NA262.285448.273413.059NA
 EBT Margin us-gaap:StatementBusinessSegments ter:SystemsTestGroup▅█▅▆▁104.819132.837103.678118.16971.806NA116.07682.521NA73.30573.40758.2239.32965.91369.68243.01979.98835.56936.73239.84550.20637.0348.9453.6759.26469.06245.82237.43645.91343.08935.43438.06344.57336.11337.07235.26339.77533.84471.298NA97.752NA66.151102.995NA67.423NA57.911NA47.87743.11832.212NA
 EBT Margin us-gaap:StatementBusinessSegments ter:WirelessTest█▁▁▁▅54.89340.89839.84240.50449.185NA43.48544.774NA42.26441.23629.04139.98334.30435.21222.50728.05430.86527.6825.26825.54427.91922.42720.31432.28755.35962.87934.04839.78854.83868.69921.2125.75593.13299.38633.59824.528118.571111.928NA31.328NANANANANANANANANANANANA
  2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-312020-03-292019-12-312019-09-302019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-06-302012-04-012012-03-312011-12-312011-10-022011-09-302011-07-032011-06-302011-04-032011-03-312010-12-312010-10-032010-07-042010-04-04
 TTM Greenblatt ROC _ _█▂▂▃▁388.872233.013234.08269.661217.949NA206.718171.656154.921154.921133.99493.085112.273143.593120.497.53498.011128.731209.90693.38259.17256.501-231.80156.113-9.74886.804130.7935.124-126.17198.238120.6673.6886.83793.50685.9084.408-24.595108.112157.441157.44146.4146.41-10.29359.52361.484101.64299.83678.49980.47161.45NANANA
  2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-312020-03-292019-12-312019-09-302019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-06-302012-04-012012-03-312011-12-312011-10-022011-09-302011-07-032011-06-302011-04-032011-03-312010-12-312010-10-032010-07-042010-04-04
us-gaap:ComprehensiveIncomeNetOfTax █▁▃▄▂334.964180.673221.6239.466207.521NA167.932130.44NA119.23105.512106.472127.224127.0171.65396.435-103.149113.506191.79194.53442.74764.886-226.28763.165-8.85274.68293.63234.182-103.98182.099102.0241.81922.48870.03564.0366.568-17.06689.715111.723NA33.75NA128.80955.654NA88.552NA99.131NANANANANA
us-gaap:CostOfGoodsAndServicesSold █▂▁▄▄438.739319.988309.179360.556367.188NA298.805271.412237.0237.0240.26206.464210.023233.155219.595217.635208.485208.509306.263191.897160.983183.116248.922200.662152.418207.368214.171149.978163.01216.889235.154153.963125.444179.082187.656126.95122.999203.194238.778238.778205.742205.742163.025174.544174.015195.433195.929184.752184.269172.478219.592194.369149.461
us-gaap:CostOfRevenue █▂▁▄▄438.739319.988309.179360.556367.188NA298.805271.412237.0237.0240.26206.464210.023233.155219.595217.635206.48208.592305.682191.98160.983183.116248.922200.662152.418207.368214.171149.978163.01216.889235.154153.963125.444179.082187.656126.95122.999203.194238.778238.778205.742205.742163.025174.544174.015195.433195.929184.752184.269172.478219.592194.369149.461
us-gaap:GrossProfit █▁▁▁▂646.989461.618449.789458.928471.473NA405.55383.238345.038345.038323.918287.635309.535333.693307.334269.832272.935294.786391.219264.933219.006227.359282.87230.332166.026258.626298.568192.423160.226261.121290.413167.047159.857254.294241.233153.417125.405260.2309.506309.506190.926190.926133.967169.845170.374215.086214.59192.409192.892180.172271.799250.902169.877
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest █▁▁▃▁384.026223.993222.925263.731217.291NA197.069148.886151.733151.733131.17793.979111.128140.844120.01295.8298.084127.437206.87792.01658.88459.681-230.81757.192-8.85787.408132.13642.438-124.813100.67121.392-1.873NANANANANANANANANANANANANANANANANANANANANA
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments █▁▁▃▁384.026223.993222.926263.731217.291NA197.069148.883NA151.733131.17793.979111.126140.844120.01295.8298.083127.437206.87792.01658.88559.681-230.81757.192-8.85787.408132.13642.438-124.813100.67121.392-1.87335.43987.55280.357-1.426-30.285103.025151.992151.99241.24441.244-15.54956.50458.46597.72995.92373.6175.58256.2152.31132.07353.929
us-gaap:IncomeTaxExpenseBenefit █▁▃▅▃55.70718.48126.59541.01328.383NA20.87823.81115.87315.87333.78-15.159-32.66220.86318.9758.846204.00724.01731.9016.795-7.461-4.113-7.2717.206-8.21615.95529.2579.651-21.00217.72120.187-2.80213.09618.09313.801-8.015-13.74214.38440.60540.6057.687.68-144.621.7591.7597.8397.8395.4865.486-6.1276.6069.5434.83
us-gaap:InterestExpense ▁▅█▇▅5.5666.0046.3516.2376.043NA5.5515.955.4635.6825.85.71313.1825.5575.6396.895.385.3725.5095.4021.6040.6330.6910.710.7620.5080.4440.1620.2140.1440.1596.417-27.3966.9026.4546.9066.9466.1546.3236.3236.0596.0596.1346.0686.0685.3165.3166.1766.1764.7566.0337.7555.567
us-gaap:InterestExpenseDebt ▁▅██▇4.5835.0755.3735.3255.277NA5.235.182NA5.1375.0915.0465.0014.9584.9154.8724.8294.7724.7464.706NANANANANANANANA0.00.00.06.256.5246.3356.2246.0945.9685.8245.73NANANANANANANANANANANANANANA
us-gaap:NetIncomeLoss █▂▁▃▁328.319205.512196.33222.718188.908NA176.191125.075135.86135.8697.397109.138143.79119.981101.03786.974-105.923103.42174.97685.22166.34563.794-223.54649.986-0.64171.453102.87932.787-103.81182.949101.2050.92922.34369.45966.5566.589-16.54388.641111.387111.38733.56433.564129.07154.74556.70689.05887.25294.87296.84460.141147.34122.14950.1
us-gaap:OperatingExpenses █▅▄▁█258.117228.605215.709189.267253.524NA198.832211.582190.117190.117189.924194.55197.262190.1186.934172.298174.924166.055181.313171.551159.834170.858514.671174.219175.774171.822167.778157.299286.397162.883169.746163.359153.02160.788155.325149.009150.0152.088152.065152.065144.516144.516144.26110.322108.89113.444114.754113.91112.421118.722114.922114.755110.883
us-gaap:OperatingIncomeLoss █▂▂▃▁388.872233.013234.08269.661217.949NA206.718171.656154.921154.921133.99493.085112.273143.593120.497.53498.011128.731209.90693.38259.17256.501-231.80156.113-9.74886.804130.7935.124-126.17198.238120.6673.6886.83793.50685.9084.408-24.595108.112157.441157.44146.4146.41-10.29359.52361.484101.64299.83678.49980.47161.45156.877136.14758.994
us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax ▅▁█▇▇5.15-21.12324.77217.10415.805NA-8.7796.028NA-18.0025.642-4.659-16.8747.213-29.32210.5413.6059.29115.9818.963-20.2341.843-5.04110.271-5.7593.267-6.267NANANANANANANANANANANANANANANA0.0NANANANANANANANANANA
us-gaap:OtherComprehensiveIncomeLossNetOfTax ▅▁█▇▇6.645-24.83925.26816.74818.613NA-8.2595.367NA-16.638.115-2.666-16.5647.029-29.3849.4612.77510.08616.8159.313-23.5991.092-2.74113.179-8.2113.229-9.2471.395-0.17-0.850.8190.890.1450.576-2.52-0.021-0.5231.0740.336NA0.186NA-0.262-1.052NA1.3NANANANANANANA
us-gaap:OtherNonoperatingIncomeExpense ▅▂▁▅█0.087-3.824-5.597-0.7644.017NA-6.849-22.965-2.158-2.665-2.447-1.4452.954-3.405-0.176-0.805-1.023-0.439-0.8120.516-1.7790.9210.0090.147-0.364-0.5960.1165.66-0.4630.654-0.382-0.1834.168-0.414-0.019-0.503NANANANANANANANANANANANANANANANANA
us-gaap:ProfitLoss █▂▁▃▁328.319205.512196.332222.717188.907NA176.191125.073NA135.8697.397109.138143.788NA101.03686.974NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:ResearchAndDevelopmentExpenseExcludingAcquiredInProcessCost █▄▄▁▁110.021100.402100.79594.90994.102NA85.15986.79477.80477.80481.43476.79174.70677.04975.34274.40870.56477.1981.72876.18270.05271.476.10973.46470.94174.02775.83271.4579.18871.95373.41467.08564.61368.91867.77362.75161.6663.05566.53266.53260.13560.13556.36446.79945.89647.39348.39447.97747.14450.69649.04849.34147.937
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax █▅▅▆▆▃▅▄▄▄▄▃▃▄▃▃▃▃▅▃▂▂▃▃▂▃▃▂▂▃▃▂▁▃▃▁▁▃▄▄▂▂▁▂▂▂▂▂▂▂▃▃▂1085.728781.606758.968819.484838.661494.099704.355654.65582.038582.038564.178494.099519.558566.848526.929487.467479.415503.378696.901456.913379.989410.475531.792430.994318.444465.994512.739342.401323.236478.01525.567321.01285.301433.376428.889280.367248.404463.394548.284548.284396.668396.668296.992344.389344.389410.519410.519377.161377.161352.65491.391445.271319.338
us-gaap:Revenues █▅▅▆▆▃▅▄▄▄▄▃▃▄▃▃▃▃▅▃▂▂▃▃▂▃▃▂▂▃▃▂▁▃▃▁▁▃▄▄▂▂▁▂▂▂▂▂▂▂▃▃▂1085.728781.606758.968819.484838.661494.099704.355654.65582.038582.038564.178494.099519.558566.848526.929487.467479.415503.378696.901456.913379.989410.475531.792430.994318.444465.994512.739342.401323.236478.01525.567321.01285.301433.376428.889280.367248.404463.394548.284548.284396.668396.668296.992344.389344.389410.519410.519377.161377.161352.65491.391445.271319.338
us-gaap:SellingGeneralAndAdministrativeExpense █▅▄▂▁140.187129.797124.279115.84113.259NA111.388117.092109.166109.166108.811102.013100.552100.19999.4190.50588.00686.24489.13184.90676.28978.79481.42579.17479.71877.48177.07372.04191.15773.06477.48978.00369.52372.91769.2367.8970.43669.92173.36673.36667.77767.77764.94355.30454.77557.48158.02858.22957.57357.12460.5657.7354.686
  2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-312020-03-292019-12-312019-09-302019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-06-302012-04-012012-03-312011-12-312011-10-022011-09-302011-07-032011-06-302011-04-032011-03-312010-12-312010-10-032010-07-042010-04-04
  2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-312020-03-292019-12-312019-09-302019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-06-302012-04-012012-03-312011-12-312011-10-022011-09-302011-07-032011-06-302011-04-032011-03-312010-12-312010-10-032010-07-042010-04-04
us-gaap:Assets █▅▅▃▁4000.9223719.7173652.3463436.5123249.189NA2820.3882787.014NA2698.7912671.5142616.6432706.6062882.4872931.722995.1933109.5453089.3273030.2252842.282762.4932365.6872407.8582548.9742548.6742661.8842692.8072512.1822538.522695.0072630.6632433.4492629.8242611.6482506.172389.5382429.3452463.2912434.67NA2238.148NA2188.6391962.677NA1998.295NA1874.698NA1810.355NANANA
us-gaap:Liabilities ▇▁▄▄█1486.281393.9311441.5411442.9681504.638NA1269.7151306.856NA1216.1561192.1021146.4151184.2521214.7271191.781090.211155.899979.43981.577922.427933.834583.543662.279553.073582.888616.279618.585454.96459.54505.099529.19443.619644.73660.147639.677598.273650.99678.048749.24NA689.455NA683.579592.79NA664.357NA647.266NA688.167NANANA
us-gaap:LiabilitiesAndStockholdersEquity █▅▅▃▁4000.9223719.7173652.3463436.5123249.189NA2820.3882787.014NA2698.7912671.5142616.6432706.6062882.4872931.722995.1933109.5453089.3273030.2252842.282762.4932365.6872407.8582548.9742548.6742661.8842692.8072512.1822538.522695.0072630.6632433.4492629.8242611.6482506.172389.5382429.3452463.2912434.67NA2238.148NA2188.6391962.677NA1998.295NA1874.698NA1810.355NANANA
us-gaap:StockholdersEquity █▆▅▃▁2493.2562324.5532207.0181993.5441744.551NA1550.6731480.158NA1482.6351479.4121470.2281522.3541667.761739.941904.9831953.6462109.8972048.6481919.8531828.6591782.1441745.5791995.9011965.7862045.6052074.2222057.2222078.982189.9082101.4731989.831985.0941951.5011866.4931791.2651778.3551785.2431685.43NA1548.693NA1505.061369.887NA1333.938NA1227.432NA1122.188NANANA
  2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-312020-03-292019-12-312019-09-302019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-06-302012-04-012012-03-312011-12-312011-10-022011-09-302011-07-032011-06-302011-04-032011-03-312010-12-312010-10-032010-07-042010-04-04
us-gaap:AssetsCurrent █▆▅▃▁2699.4722501.1032415.4342243.6322094.007NA1702.5781658.884NA1654.5791616.8261594.0421732.4821879.3951894.1852156.4252270.2812140.0882080.0251854.1531623.8031285.1881412.8861242.7221259.9681336.6571316.3861321.1561243.8461401.0211354.6271261.2471440.2771494.381282.2031207.451236.0611311.2671316.808NA1120.991NA1099.8871555.824NA1343.428NA1250.797NA1176.618NANANA
us-gaap:CashAndCashEquivalentsAtCarryingValue █▄▇█▁954.441831.149914.121945.18725.431NA593.494773.924NA593.939495.107483.728926.752814.019480.384637.873429.843418.677598.349324.746307.884297.937381.095319.358264.705294.217300.685218.945294.256211.704254.625232.626341.638572.868227.601305.219338.92485.692589.056NA533.396NA573.7361095.163NA455.398NA420.267NA397.737433.915403.996342.012
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents █▄▇█▁954.441831.149914.121945.18725.431NA593.494773.924NA593.939495.107483.728926.752814.019480.384637.873429.843418.677598.349NA307.884NANANA264.705NANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:AccountsReceivableNetCurrent █▃▁▃▅868.457581.509497.506587.243694.521NA487.365362.368NA357.886372.199333.84291.267352.476454.122413.978272.783268.068405.946314.962192.444163.213349.547253.976211.293245.233296.654175.783151.034321.312300.767216.524157.642209.386228.208166.614153.423205.464346.124NA221.547NA129.33143.523NA207.823NA186.254NA176.483NANANA
us-gaap:InventoryNet ▄█▄▁▂226.138262.474222.189191.317206.088NA182.978196.691NA178.203164.461161.342153.541154.705135.55131.857107.525125.183153.645203.278135.958115.066129.278160.687153.588128.432121.817121.051105.129108.377126.874137.434137.939123.032128.204149.058139.41134.757137.898NA138.23NA160.063133.339NA141.518NA129.692NA117.642NANANA
us-gaap:PrepaidExpenseAndOtherAssetsCurrent █▇▂▁▁368.315347.678259.338232.103238.176NA227.74188.598NA182.013184.832194.044170.826139.785111.82112.191112.151NANANA116.493NANANANANANANANANANANANANA113.25397.90995.48781.98780.895NA83.994NA86.30864.087NA61.946NANANA52.78NANANA
us-gaap:Land NANA17.207NANANANA16.561NANANANA16.561NANANA16.561NANANA16.561NANANA16.561NANANA16.561NANANA16.561NANANA16.561NANANANANA16.561NANANANANANA16.561NANANA
us-gaap:MachineryAndEquipmentGross NANA956.035NANANANA834.97NANANANA689.77NANANA647.961NANANA601.835NANANA595.445NANANA659.743NANANA600.848NANANA606.414NANANANANA648.61NANANANANANA631.477NANANA
 us-gaap:MachineryAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType ter:TestSystemsLeasedByCustomersNANA23.4NANANANA5.4NANANANA5.5NANANA18.1NANANA19.4NANANA20.4NANANA66.9NANANANANANANANANANANANANANANANANANANANANANANANA
  2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-312020-03-292019-12-312019-09-302019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-06-302012-04-012012-03-312011-12-312011-10-022011-09-302011-07-032011-06-302011-04-032011-03-312010-12-312010-10-032010-07-042010-04-04
us-gaap:NoncurrentAssets NANA449.369NANANANA377.755NANANANA279.821NANANA268.447NANANA253.821NANANA273.414NANANA329.038NANANA275.236NANANA265.782NANANANANA232.207NANANANANANA231.108NANANA
 us-gaap:NoncurrentAssets us-gaap:StatementGeographical country:SGNANA62.5NANANANA35.2NANANANA19.4NANANA23.6NANANA31.5NANANA39.9NANANA99.2NANANA42.5NANANANANANANANANANANANANANANANANANANANA
 us-gaap:NoncurrentAssets us-gaap:StatementGeographical country:USNANA291.234NANANANA252.812NANANANA209.368NANANA198.855NANANA189.195NANANA198.424NANANA206.334NANANA211.455NANANA211.422NANANANANA192.336NANANANANANA196.683NANANA
 us-gaap:NoncurrentAssets us-gaap:StatementGeographical us-gaap:ForeignCountryNANA158.135NANANANA124.943NANANANA70.453NANANA69.592NANANA64.626NANANA74.99NANANA122.704NANANA63.781NANANA54.36NANANANANA39.871NANANANANANA34.425NANANA
us-gaap:PropertyPlantAndEquipmentGross NANA1184.324NANANANA1049.885NANANANA961.462NANANA914.492NANANA848.968NANANA849.373NANANA897.03NANANA838.414NANANA856.374847.711827.608NA809.249NA798.194800.959NA795.778NA789.553NA780.073NANANA
us-gaap:FurnitureAndFixturesGross NANA28.487NANANANA29.157NANANANA90.384NANANA88.539NANANA82.897NANANA82.612NANANA77.566NANANA81.994NANANA93.683NANANANANA91.948NANANANANANANANANANA
us-gaap:LeaseholdImprovementsGross NANA61.276NANANANA59.378NANANANA52.536NANANA49.54NANANA46.612NANANA43.328NANANA31.981NANANA30.757NANANA29.585NANANANANA25.898NANANANANANANANANANA
us-gaap:ConstructionInProgressGross NANA13.098NANANANA2.537NANANANA6.276NANANA13.522NANANA3.032NANANA2.63NANANA2.508NANANA0.622NANANA3.425NANANANANA1.28NANANANANANA1.073NANANA
us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment NANA789.524NANANANA729.669NANANANA681.641NANANA646.045NANANA595.147NANANA575.959NANANA567.992NANANA563.178NANANA590.592586.593579.608NA570.632NA565.987568.383NA562.346NA556.584NA548.496NANANA
 us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment us-gaap:PropertyPlantAndEquipmentByType ter:TestSystemsLeasedByCustomersNANA7.5NANANANA5.1NANANANA5.2NANANA13.7NANANA10.5NANANA8.5NANANA10.1NANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:AmortizationOfIntangibleAssets ▁▁▂▃█5.4025.5365.7526.2198.941NA9.8919.7849.6479.64710.08310.63410.55811.1429.7937.6987.3847.0288.1667.9527.9238.48716.24419.99419.91120.05315.25813.80815.95718.27118.27118.27118.28418.06418.06318.03618.22118.42918.42918.42918.42918.42919.1296.7546.7547.2917.2917.2917.2917.2927.2917.3137.356
us-gaap:PropertyPlantAndEquipmentNet ▇█▇▆▁395.395402.465394.8386.17353.595NA332.241320.216NA307.567295.895283.3279.821278.071285.302281.284268.447259.08258.017253.548253.821261.821264.555266.907273.414275.089291.929308.264329.038335.805308.521278.727275.236275.421264.876264.043265.782261.118248.0NA238.617NA232.207232.576NA233.432NA232.969NA231.577NANANA
us-gaap:Goodwill ▅▄█▄▁441.597437.601453.859435.252422.003NA409.933416.431NA370.717383.936379.513381.85392.998388.625275.7252.011249.277242.215230.065223.343238.589237.21495.871488.413498.346495.434273.438273.438361.819361.819361.819361.792349.272349.272349.272349.272349.373352.778NA352.778NA352.778NANANANANANANANANANA
us-gaap:IntangibleAssetsNetExcludingGoodwill ▁▃▆▇█88.12192.85100.939103.672107.563NA114.321125.48NA96.573109.494119.372125.482139.963148.17384.41379.08885.72990.60394.843100.401114.146122.069223.274239.831260.294279.126176.792190.6197.477215.748234.02252.291265.705283.728300.831318.867337.688356.117NA374.546NA392.975101.604NA108.357NA115.649NA122.941NANANA
us-gaap:FiniteLivedIntangibleAssetsNet ▁▃▆▇█88.12192.85100.939103.672107.563NA114.321125.48NA96.573109.494119.372125.482139.963148.173NA79.088NANANANANANANANANANANANANANA234.02252.291265.705283.728300.831318.867337.688356.117NA374.546NA392.975101.604NA108.357NANANA122.941NANANA
us-gaap:DeferredTaxAssetsLiabilitiesNet NANA77.092NANANANA61.115NANANANA50.186NANANA77.306NANANA95.261NANANA35.714NANANA41.418NANANA37.01NANANA32.476NANANANANA37.899NANANANANANA12.881NANANA
us-gaap:OperatingLeaseRightOfUseAsset █▁▃▃▄61.84951.51654.56954.72456.172NA58.80857.539NA57.59556.31550.733NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherAssetsNoncurrent █▁▁▃▃21.328.9429.38411.6511.854NA9.27210.332NA22.72425.71211.27911.50911.42112.19212.47912.27512.02812.42912.17512.16512.77713.07413.04113.0813.09613.36410.2810.4199.85310.92710.57414.59119.76319.05118.58320.20917.85320.035NA20.46NA17.54517.277NA16.644NA16.472NA16.542NANANA
  2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-312020-03-292019-12-312019-09-302019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-06-302012-04-012012-03-312011-12-312011-10-022011-09-302011-07-032011-06-302011-04-032011-03-312010-12-312010-10-032010-07-042010-04-04
us-gaap:AccountsPayableCurrent ▄▇▁▃█156.103177.473133.663150.427184.163NA129.633126.617NA117.936103.449118.816100.688107.89102.737103.9586.39379.429103.454121.41795.36261.89103.0984.10492.35881.64286.46359.83147.76360.309102.21470.59762.87467.73467.12559.158.32474.187117.343NA106.381NA69.84277.768NA106.993NA109.988NA81.979NANANA
us-gaap:AccruedIncomeTaxesCurrent █▆▂▁▆93.87690.34980.72879.2789.216NA58.7644.2NA33.50844.92741.89836.18524.60332.22634.82859.05542.37743.81224.46630.4820.92523.97223.36821.75143.25943.16324.71120.04919.8415.1821.74911.3625.24913.6863.22112.30643.57323.218NANANA0.865.135NA9.888NA8.199NA8.465NANANA
us-gaap:LiabilitiesCurrent █▁▂▁▂985.362686.842700.871671.84729.713NA513.961539.029NA493.711467.0441.968476.287458.412452.31391.325454.336431.375439.207393.057372.696369.084455.349344.522372.857395.741402.079293.133292.406329.804361.232273.053475.632487.723465.07417.445297.828349.253425.871NA375.822NA373.684293.021NA352.986NA333.469NA363.704NANANA
us-gaap:OperatingLeaseLiabilityCurrent █▁█▆▄20.53919.67520.57320.31120.0NA19.59119.476NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherAccruedLiabilitiesCurrent █▄▁▅▅146.484105.23877.581117.108119.732NA87.27470.871NA93.73677.05367.42278.27295.88883.68164.78259.08362.61166.17667.65151.38256.5847.1592.61743.72783.82385.4768.94351.99798.42493.10365.56163.71262.18454.68451.91856.86161.2264.298NA59.857NA62.4252.554NA59.889NA56.613NA57.741NANANA
  2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-312020-03-292019-12-312019-09-302019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-06-302012-04-012012-03-312011-12-312011-10-022011-09-302011-07-032011-06-302011-04-032011-03-312010-12-312010-10-032010-07-042010-04-04
us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent █▇▇▂▁154.311152.508151.14134.65130.826NA125.97134.471NA121.34122.596121.205117.456127.037124.258124.689119.776114.316111.688110.069106.938108.095106.618106.921103.531107.102107.557106.224108.4688.6792.48592.5391.51795.98294.00494.59294.37380.50477.295NA78.251NA76.63874.718NA77.154NA74.435NA73.31NANANA
us-gaap:OperatingLeaseLiabilityNoncurrent █▁▃▃▄49.06639.04842.07342.13743.582NA46.32845.849NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo NANA16.798NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree NANA9.727NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour NANA7.215NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive NANA5.715NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive NANA6.149NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-312020-03-292019-12-312019-09-302019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-06-302012-04-012012-03-312011-12-312011-10-022011-09-302011-07-032011-06-302011-04-032011-03-312010-12-312010-10-032010-07-042010-04-04
us-gaap:StockholdersEquity █▆▅▃▁2493.2562324.5532207.0181993.5441744.551NA1550.6731480.158NA1482.6351479.4121470.2281522.3541667.761739.941904.9831953.6462109.8972048.6481919.8531828.6591782.1441745.5791995.9011965.7862045.6052074.2222057.2222078.982189.9082101.4731989.831985.0941951.5011866.4931791.2651778.3551785.2431685.43NA1548.693NA1505.061369.887NA1333.938NA1227.432NA1122.188NANANA
us-gaap:CommonStockValue ▁█▆▅▄20.6820.80220.76520.75520.725NA20.74220.801NA21.06121.30521.54421.9422.91123.49524.22624.44424.58924.7524.9524.89725.20525.35525.46225.45525.90426.56326.98827.07727.0624.5424.25323.96623.92523.8423.80323.48823.45623.402NA23.302NA22.94823.015NA23.25NA23.156NA22.755NANANA
us-gaap:AdditionalPaidInCapitalCommonStock █▇▇▅▁1772.3021765.9711765.3231756.8311730.716NA1721.3671720.129NA1712.1851688.2111679.9971671.6451664.5681645.6791638.7561638.4131631.1061613.0051605.5021593.6841517.9571505.8631489.0111480.647NANANA1437.135NANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:RetainedEarningsAccumulatedDeficit █▆▅▃▁684.952529.103387.414207.711.61NA-164.323-241.918NA-226.39-222.513-215.607-158.191-23.24374.27216.12272.013438.201404.978300.302230.292235.597212.068476.393467.828547.993588.472579.571610.079726.889656.711555.512566.232543.889474.43407.874401.285417.828329.187NA217.798NA318.857186.531NA142.055NA52.996NA-41.876NANANA
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax ▅▄█▄▁15.3228.67733.5168.248-8.5NA-27.113-18.854NA-24.221-7.591-15.706-13.043.524-3.50425.88118.77616.0015.915-10.901-20.2143.3852.2935.035-8.1440.067-3.1626.0844.6894.8595.7094.894.03.8553.2795.7995.826.3435.267NA4.933NA-129.875-122.925NA-124.094NA-123.842NA-128.216NANANA
us-gaap:TreasuryStockValue NANA88.5NANANANA1323.0NANANANA823.5NANANA200.0NANANA446.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue ▆█▃▇▁12.51513.35910.60212.69.8NA11.28312.056NA9.9337.5358.5628.9628.8337.0378.472NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-312020-03-292019-12-312019-09-302019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-06-302012-04-012012-03-312011-12-312011-10-022011-09-302011-07-032011-06-302011-04-032011-03-312010-12-312010-10-032010-07-042010-04-04
us-gaap:NetCashProvidedByUsedInOperatingActivities ▅▁▆█▅206.28438.139260.424342.512222.897NA43.102216.328NA199.148145.25818.016186.376NA131.851-81.93147.473309.83NANANANANANANANANANANANANANA43.846154.452105.471-36.49442.299248.972102.092NA11.169NA59.20692.975NA101.965NA19.618NA177.01255.813107.89126.086
us-gaap:NetCashProvidedByUsedInInvestingActivities █▆▁▄▅87.6154.667-277.207-119.365-63.014NA-110.208110.239NA22.288-28.236-260.951203.964NA-44.343462.892-74.519-428.357NANANANANANANANANANANANANANA-276.212184.452-184.252-5.815-173.323-315.162-61.091NA-54.364NA-573.49575.502NA-77.527NA-5.942NA-215.128-225.064-81.701-105.767
us-gaap:NetCashProvidedByUsedInFinancingActivities ▁▃██▇-169.235-126.661-14.892-3.049-26.45NA-113.895-146.413NA-122.723-105.453-199.76-277.385NA-243.708-174.41-62.466-62.197NANANANANANANANANANANANANANA1.1366.3631.1638.608-15.748-37.17414.659NA2.855NA-7.143-28.712NA10.693NA8.854NA2.454-0.8335.7944.956
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect ▆▁▂█▆123.292-82.972-31.059219.749131.937NA-180.43179.985NA98.83211.379-443.024112.733NA-157.489208.0311.166-179.672NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-312020-03-292019-12-312019-09-302019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-06-302012-04-012012-03-312011-12-312011-10-022011-09-302011-07-032011-06-302011-04-032011-03-312010-12-312010-10-032010-07-042010-04-04
us-gaap:DeferredIncomeTaxExpenseBenefit ▇▆▁█▄0.257-1.057-11.1412.616-5.338NA-1.825-6.479NA-3.492-0.6911.2063.898NA8.6168.69637.7842.884-0.086-3.477-20.368-21.11-15.962-5.4966.849-3.602-8.54-1.8314.336-3.05-18.39612.69914.927-3.981-9.047-6.183-1.52-8.8618.238NA7.699NA-146.257NANANANANANANANANANA
us-gaap:IncreaseDecreaseInAccountsReceivable █▄▁▁▇285.18687.512-92.564-109.025204.261NA126.7793.651NA-12.68937.77241.706-59.869NA38.656140.7474.961-138.56690.397123.79227.335-183.8995.67842.552-33.85-51.376117.74424.749-171.7320.54584.24358.882-52.307-18.82261.59413.191-52.041-140.66124.577NA92.217NA-41.134-64.3NA21.569NA17.498NA-129.80557.86869.31953.865
us-gaap:IncreaseDecreaseInInventories ▁█▇▄▇-55.77835.8725.436-20.72619.546NA-15.81813.265NA11.696-0.472.917-4.619NA0.26621.017-21.19-31.919-54.00362.15214.338-18.379-30.9240.70217.817-9.876-17.54-5.96-12.905-19.798-15.834-2.63513.024-7.821-30.4134.047.418-3.6242.19NA-23.636NA-0.419-13.972NA4.297NA10.709NA5.07214.535-7.847-16.384
us-gaap:NetCashProvidedByUsedInOperatingActivities ▅▁▆█▅206.28438.139260.424342.512222.897NA43.102216.328NA199.148145.25818.016186.376NA131.851-81.93147.473309.83NANANANANANANANANANANANANANA43.846154.452105.471-36.49442.299248.972102.092NA11.169NA59.20692.975NA101.965NA19.618NA177.01255.813107.89126.086
us-gaap:NetIncomeLoss █▂▁▃▁328.319205.512196.33222.718188.908NA176.191125.075135.86135.8697.397109.138143.79119.981101.03786.974-105.923103.42174.97685.22166.34563.794-223.54649.986-0.64171.453102.87932.787-103.81182.949101.2050.92922.34369.45966.5566.589-16.54388.641111.387111.38733.56433.564129.07154.74556.70689.05887.25294.87296.84460.141147.34122.14950.1
us-gaap:ProfitLoss █▂▁▃▁328.319205.512196.332222.717188.907NA176.191125.073NA135.8697.397109.138143.788NA101.03686.974NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:ShareBasedCompensation ▁█▆▅▁10.99912.23211.87811.66110.907NA10.469.075NA10.7138.6359.4748.25NA8.0819.5448.4778.3088.3678.9457.7387.5557.5327.9257.3717.6757.4427.9638.4348.3438.29715.2339.3859.159.0549.0239.2869.23810.63NA10.766NA9.8237.832NA7.218NA7.464NA7.8227.6177.1687.973
  2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-312020-03-292019-12-312019-09-302019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-06-302012-04-012012-03-312011-12-312011-10-022011-09-302011-07-032011-06-302011-04-032011-03-312010-12-312010-10-032010-07-042010-04-04
us-gaap:NetCashProvidedByUsedInInvestingActivities █▆▁▄▅87.6154.667-277.207-119.365-63.014NA-110.208110.239NA22.288-28.236-260.951203.964NA-44.343462.892-74.519-428.357NANANANANANANANANANANANANANA-276.212184.452-184.252-5.815-173.323-315.162-61.091NA-54.364NA-573.49575.502NA-77.527NA-5.942NA-215.128-225.064-81.701-105.767
us-gaap:PaymentsToAcquirePropertyPlantAndEquipment ▁▂▂█▄34.70739.2538.10562.85847.314NA36.738.594NA37.09233.24525.71126.11NA27.86634.79732.12827.2823.90122.06619.0219.65926.25920.33423.15120.61724.96121.14922.6354.96360.19231.19723.80632.12728.25122.54727.94833.32830.73NA27.074NA19.47422.156NA22.336NA22.131NA22.08518.25318.11917.587
  2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-312020-03-292019-12-312019-09-302019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-06-302012-04-012012-03-312011-12-312011-10-022011-09-302011-07-032011-06-302011-04-032011-03-312010-12-312010-10-032010-07-042010-04-04
us-gaap:NetCashProvidedByUsedInFinancingActivities ▁▃██▇-169.235-126.661-14.892-3.049-26.45NA-113.895-146.413NA-122.723-105.453-199.76-277.385NA-243.708-174.41-62.466-62.197NANANANANANANANANANANANANANA1.1366.3631.1638.608-15.748-37.17414.659NA2.855NA-7.143-28.712NA10.693NA8.854NA2.454-0.8335.7944.956
us-gaap:PaymentsOfDividends ▁█▂▁▁16.616.66716.61216.616.6NA16.68615.036NA15.315.415.62716.00216.617.117.58813.71713.813.914.02112.07112.112.212.25312.27912.612.813.04912.99712.811.7NANANANANANANANANANANANANANANANANANANANANANA
us-gaap:PaymentsForRepurchaseOfCommonStock █▃▁▁▁151.39645.1880.00.09.426NA79.039131.218NA121.5690.754156.468261.215NA226.519134.27648.48357.49356.59837.7361.23928.30928.78228.00173.10698.52781.66646.65NANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-312020-03-292019-12-312019-09-302019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-06-302012-04-012012-03-312011-12-312011-10-022011-09-302011-07-032011-06-302011-04-032011-03-312010-12-312010-10-032010-07-042010-04-04

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312009-12-31
Value2020202020202021212121222324242424242425252525252626272724242323232323232323222323232221
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.50.60.60.60.60.70.70.80.80.80.80.80.80.80.80.80.80.90.91.11.11.01.01.01.01.11.11.00.91.00.90.91.01.01.01.01.01.01.01.21.21.21.31.8

Shares Issued

us-gaap:SharesIssued us-gaap:StatementClassOfStock

us-gaap:SharesIssued

us-gaap:ConvertibleCommonStock


Shares
Period End2021-07-042021-04-042020-12-31
Value211.2333.787
Percentage of SharesIssued100.0100.0100.0

us-gaap:SharesIssued us-gaap:StatementEquityComponents

us-gaap:CommonStock


Shares
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value165166166166165165166168170172175183187193195199203216191187183182174169
Percentage of SharesIssued773.613497.14386.70.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Common Stock Shares Issued

us-gaap:CommonStockSharesIssued

us-gaap:CommonStockSharesIssued


Common
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312009-12-31
Value1651661661660.1658061651661681701721751831871931951961971991992012022032032072122152162161961941911911901901871871871861830.1841220.186002185182174
Percentage of CommonStockSharesIssued100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Common Stock Shares Authorized

us-gaap:CommonStockSharesAuthorized

us-gaap:CommonStockSharesAuthorized


Common
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312009-12-31
Value1000100010001000100010001000100010001000100010001000100010001000100010001000100010001000100010001000100010001000100010001000100010001000100010001000100010001.01.0100010001000
Percentage of CommonStockSharesAuthorized100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Common Stock Shares Outstanding

us-gaap:CommonStockSharesOutstanding

us-gaap:CommonStockSharesOutstanding


Common
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312009-12-31
Value1651661661660.1658061651661681701721751831871931951961971991992012022032032072122152162161961941911911901901871871871861830.1841220.186002185182174
Percentage of CommonStockSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding


Weighted
Period End2021-07-042021-04-042020-09-272020-06-282020-03-292019-09-292019-06-302019-03-312018-09-302018-07-012018-04-012017-10-012017-07-022017-04-022016-10-022016-07-032016-04-032015-10-042015-07-052015-04-052014-09-282014-06-292014-03-302013-09-292013-06-302013-03-312012-09-302012-07-012012-04-012011-10-022011-07-032011-04-032010-10-032010-07-042010-04-04
Value186187184180180180178176190194203200201201203203205211215218218216236235234234229229231221230232229231226
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic


Weighted
Period End2021-07-042021-04-042020-09-272020-06-282020-03-292019-09-292019-06-302019-03-312018-09-302018-07-012018-04-012017-10-012017-07-022017-04-022016-10-022016-07-032016-04-032015-10-042015-07-052015-04-052014-09-282014-06-292014-03-302013-09-292013-06-302013-03-312012-09-302012-07-012012-04-012011-10-022011-07-032011-04-032010-10-032010-07-042010-04-04
Value165166166165166169171173185190195197198200202203204210213217207194193191190189187186185185185184181179176
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount


Antidilutive
Period End2020-09-272020-06-282020-03-292019-09-292019-06-302019-03-31
Value100000.0100000.0300000.0100000.0200000.0600000.0
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount100.0100.0100.0100.0100.0100.0

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareBasic


Earnings
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-302019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-06-302012-04-012012-03-312011-12-312011-10-022011-09-302011-07-032011-06-302011-04-032011-03-312010-12-312010-10-032010-07-042010-04-04
Value1.981.231.181.341.141.060.750.80.80.570.630.80.650.530.45-0.540.520.880.430.330.32-1.10.2400.340.480.15-0.480.40.5200.120.360.350.03-0.090.470.60.60.180.180.70.30.310.480.470.510.520.330.810.680.28
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareDiluted


Earnings
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-302019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-06-302012-04-012012-03-312011-12-312011-10-022011-09-302011-07-032011-06-302011-04-032011-03-312010-12-312010-10-032010-07-042010-04-04
Value1.761.091.051.211.050.970.690.750.750.550.620.790.630.520.43-0.540.520.870.420.330.31-1.10.2400.340.480.15-0.480.380.4700.090.290.280.03-0.090.390.490.490.150.150.580.250.260.390.380.410.420.280.660.550.24
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Comprehensive Income Net Of Tax

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTax


Comprehensive
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-03
Value3341802212392071671301191051061271277196-103.149113191944264-226.28763-8.852749334-103.981821021.8192270646.568-17.0668911133128558899
Percentage of ComprehensiveIncomeNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax30.923.129.229.224.723.80.020.518.721.524.522.413.619.8-21.522.527.520.711.215.8-42.614.7-2.816.018.310.0-32.217.219.40.60.016.214.92.3-6.919.420.48.50.016.221.626.3

Cost Of Goods And Services Sold

us-gaap:CostOfGoodsAndServicesSold

us-gaap:CostOfGoodsAndServicesSold


Cost
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-302019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-06-302012-04-012012-03-312011-12-312011-10-022011-09-302011-07-032011-06-302011-04-032011-03-312010-12-312010-10-032010-07-042010-04-04
Value438319309360367298271237237240206210233219217208208306191160183248200152207214149163216235153125179187126122203238238205205163174174195195184184172219194149
Percentage of CostOfGoodsAndServicesSold100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax40.440.940.744.043.842.441.540.740.742.641.840.441.141.744.643.541.443.942.042.444.646.846.647.944.541.843.850.445.444.748.044.041.343.845.349.543.843.643.651.951.954.950.750.547.647.749.048.90.044.743.746.8

us-gaap:CostOfGoodsAndServicesSold us-gaap:ProductOrService

us-gaap:Product


Cost
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-302019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-02
Value388267274300322259226197197193165170195180180168169267154
Percentage of CostOfGoodsAndServicesSold88.683.788.883.387.987.083.383.283.280.580.181.083.882.383.180.981.487.480.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax35.834.336.236.638.536.934.633.933.934.333.532.734.534.337.135.233.738.433.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Product0.00.042.443.043.942.641.240.440.442.342.040.441.541.644.843.441.143.941.5

us-gaap:Service


Cost
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-302019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-02
Value49523460443845393946413937383639383837
Percentage of CostOfGoodsAndServicesSold11.416.311.216.712.113.016.716.816.819.519.919.016.217.716.919.118.612.619.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.66.74.67.45.35.56.96.86.88.38.37.76.77.47.58.37.75.58.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Service0.00.031.149.642.741.542.642.442.444.040.840.439.541.843.943.742.944.544.2

Cost Of Revenue

us-gaap:CostOfRevenue

us-gaap:CostOfRevenue


Cost
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-302019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-06-302012-04-012012-03-312011-12-312011-10-022011-09-302011-07-032011-06-302011-04-032011-03-312010-12-312010-10-032010-07-042010-04-04
Value438319309360367298271237237240206210233219217206208305191160183248200152207214149163216235153125179187126122203238238205205163174174195195184184172219194149
Percentage of CostOfRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax40.440.940.744.043.842.441.540.740.742.641.840.441.141.744.643.141.443.942.042.444.646.846.647.944.541.843.850.445.444.748.044.041.343.845.349.543.843.643.651.951.954.950.750.547.647.749.048.90.044.743.746.8

Gross Profit

us-gaap:GrossProfit

us-gaap:GrossProfit


Gross
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-302019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-06-302012-04-012012-03-312011-12-312011-10-022011-09-302011-07-032011-06-302011-04-032011-03-312010-12-312010-10-032010-07-042010-04-04
Value646461449458471405383345345323287309333307269272294391264219227282230166258298192160261290167159254241153125260309309190190133169170215214192192180271250169
Percentage of GrossProfit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax59.659.159.356.056.257.658.559.359.357.458.259.658.958.355.456.958.656.158.057.655.453.253.452.155.558.256.249.654.655.352.056.058.756.254.750.556.256.456.448.148.145.149.349.552.452.351.051.10.055.356.353.2

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

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest


Income
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-302019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-30
Value384223222263217197148151151131931111401209598127206925859-230.81757-8.8578713242-124.813100121-1.873
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax35.428.729.432.225.928.022.726.126.123.319.021.424.822.819.720.525.329.720.115.514.5-43.413.3-2.818.825.812.4-38.621.123.1-0.6

Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments


Income
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-06-302012-04-012012-03-312011-12-312011-10-022011-09-302011-07-032011-06-302011-04-032011-03-312010-12-312010-10-032010-07-042010-04-04
Value384223222263217197148151131931111401209598127206925859-230.81757-8.8578713242-124.813100121-1.873358780-1.426-30.2851031511514141-15.5495658979573755615213253
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax35.428.729.432.225.928.00.026.123.319.021.424.822.819.720.525.329.720.115.514.5-43.413.3-2.818.825.812.4-38.621.123.1-0.612.420.218.7-0.5-12.222.227.727.710.410.4-5.216.417.023.823.419.520.00.031.029.716.9

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments us-gaap:StatementBusinessSegments

ter:CorporateAndOthers


Income
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-01
Value1.135-0.0853.49421-33.768-0.039-21.9411.1829.0872.743-13.509-3.6331.1150.605
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments0.3-0.01.68.2-15.5-0.0-14.70.86.92.9-12.2-2.60.90.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.1-0.00.52.6-4.0-0.00.00.21.60.6-2.6-0.60.20.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ter:CorporateAndOthers0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

ter:IndustrialAutomation


Income
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-05
Value-9.837-12.9678.022-5.302-11.403-15.3354.754-1.645-3.735.295-27.6269.056-2.9220.78420-3.344-1.081-2.571-0.419-4.695-4.501-7.168-1.027-4.847-1.7
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments-2.6-5.83.6-2.0-5.2-7.83.2-1.1-2.85.6-24.96.4-2.40.821.0-2.6-0.5-2.8-0.7-7.92.0-12.511.6-5.5-1.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.9-1.71.1-0.6-1.4-2.20.0-0.3-0.71.1-5.31.6-0.60.24.3-0.7-0.2-0.6-0.1-1.1-0.8-1.7-0.3-1.0-0.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ter:IndustrialAutomation0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

ter:SemiconductorTest


Income
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312010-10-032010-07-04
Value33717616718922815312511691839112691886511621197496712173137312943229110734126858134.3915591349.58135927653156141
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments87.878.775.471.7105.378.184.676.969.688.482.689.976.091.966.691.7102.1106.584.6113.5-52.5128.1-152.784.698.0101.6-17.791.388.4-1847.335.378.772.9-965.4-14.553.760.084.9-61.663.094.6104.595.8102.6107.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax31.122.622.123.127.321.80.020.016.216.817.722.317.318.113.623.230.321.413.116.522.817.04.215.925.312.66.819.220.410.80.015.913.74.91.811.916.68.80.010.322.520.40.031.831.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ter:SemiconductorTest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

ter:SystemsTestGroup


Income
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312010-10-032010-07-04
Value33513747194830242315500.94205.888103.373-5.692-2.7598.8831.558.9929.4921413-4.3331.0056.6045.779-0.7150.4483.268-2.4620.7791.533.2-2.642112112259.1255.4911.8921.149-5.845
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments8.822.816.718.08.824.620.316.117.916.345.00.717.06.110.82.6-2.8-3.015.12.6-3.916.6-165.715.7-3.32.4-5.35.7-0.6-23.99.2-2.81.0-107.3-10.6-2.67.753.3-79.944.79.37.53.40.8-4.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.16.54.95.82.36.90.04.24.23.19.60.23.91.22.20.7-0.8-0.62.30.41.72.24.63.0-0.80.32.01.2-0.10.10.0-0.60.20.51.3-0.62.15.50.07.32.21.50.00.2-1.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ter:SystemsTestGroup0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

ter:WirelessTest


Income
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-01
Value219.6166.311014109.84511103.628107.843100.4643.8427.4614.5141.5324.1871.049-356.505-20.14-13.2272.9976.841-10.441-107.7192.37914-25.085-18.3382723-9.997-14.6525851-12.312
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments5.64.32.84.16.75.26.67.48.33.99.45.68.60.53.95.92.21.77.11.8154.5-35.2149.33.45.2-24.686.32.411.71339.3-51.731.529.8701.148.457.233.6-29.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.01.20.81.31.71.50.01.91.90.72.01.42.00.10.81.50.60.31.10.3-67.0-4.7-4.20.61.3-3.0-33.30.52.7-7.80.06.45.6-3.6-5.912.79.3-3.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ter:WirelessTest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxExpenseBenefit


Income
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-302019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-06-302012-04-012012-03-312011-12-312011-10-022011-09-302011-07-032011-06-302011-04-032011-03-312010-12-312010-10-032010-07-042010-04-04
Value55182641282023151533-15.159-32.66220188.84620424316.795-7.461-4.113-7.2717.206-8.21615299.651-21.0021720-2.802131813-8.015-13.7421440407.687.68-144.621.7591.7597.8397.8395.4865.486-6.1276.6069.5434.83
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.12.43.55.03.43.03.62.72.76.0-3.1-6.33.73.61.842.64.84.61.5-2.0-1.0-1.41.7-2.63.45.72.8-6.53.73.8-0.94.64.23.2-2.9-5.53.17.47.41.91.9-48.70.50.51.91.91.51.50.01.32.11.5

Interest Expense

us-gaap:InterestExpense

us-gaap:InterestExpense


Interest
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-302019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-06-302012-04-012012-03-312011-12-312011-10-022011-09-302011-07-032011-06-302011-04-032011-03-312010-12-312010-10-032010-07-042010-04-04
Value5.5666.0046.3516.2376.0435.5515.955.4635.6825.85.713135.5575.6396.895.385.3725.5095.4021.6040.6330.6910.710.7620.5080.4440.1620.2140.1440.1596.417-27.3966.9026.4546.9066.9466.1546.3236.3236.0596.0596.1346.0686.0685.3165.3166.1766.1764.7566.0337.7555.567
Percentage of InterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.50.80.80.80.70.80.90.91.01.01.22.51.01.11.41.11.10.81.20.40.20.10.20.20.10.10.00.10.00.02.0-9.61.61.52.52.81.31.21.21.51.52.11.81.81.31.31.61.60.01.21.71.7

Interest Expense Debt

us-gaap:InterestExpenseDebt

us-gaap:InterestExpenseDebt


Interest
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-01
Value4.5835.0755.3735.3255.2775.235.1825.1375.0915.0465.0014.9584.9154.8724.8294.7724.7464.7060.00.00.06.256.5246.3356.2246.0945.9685.8245.73
Percentage of InterestExpenseDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.40.60.70.60.60.70.00.90.91.01.00.90.91.01.00.90.71.00.00.00.01.90.01.51.52.22.41.31.0

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-302019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-06-302012-04-012012-03-312011-12-312011-10-022011-09-302011-07-032011-06-302011-04-032011-03-312010-12-312010-10-032010-07-042010-04-04
Value3282051962221881761251351359710914311910186-105.923103174856663-223.54649-0.6417110232-103.811821010.9292269666.589-16.5438811111133331295456898794966014712250
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax30.226.325.927.222.525.019.123.323.317.322.127.721.219.217.8-22.120.525.118.717.515.5-42.011.6-0.215.320.19.6-32.117.419.30.37.816.015.52.4-6.719.120.320.38.58.543.515.916.521.721.325.225.70.030.027.415.7

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Net
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-01
Value3282051962221881761251359710914311910186
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax30.226.325.927.222.525.00.023.317.322.127.721.219.217.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Operating Expenses

us-gaap:OperatingExpenses

us-gaap:OperatingExpenses


Operating
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-302019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-06-302012-04-012012-03-312011-12-312011-10-022011-09-302011-07-032011-06-302011-04-032011-03-312010-12-312010-10-032010-07-042010-04-04
Value258228215189253198211190190189194197190186172174166181171159170514174175171167157286162169163153160155149150152152152144144144110108113114113112118114114110
Percentage of OperatingExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax23.829.228.423.130.228.232.332.732.733.739.438.033.535.535.336.533.026.037.542.141.696.840.455.236.932.745.988.634.132.350.953.637.136.253.160.432.827.727.736.436.448.632.031.627.628.030.229.80.023.425.834.7

Operating Income Loss

us-gaap:OperatingIncomeLoss

us-gaap:OperatingIncomeLoss


Operating
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-302019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-06-302012-04-012012-03-312011-12-312011-10-022011-09-302011-07-032011-06-302011-04-032011-03-312010-12-312010-10-032010-07-042010-04-04
Value388233234269217206171154154133931121431209798128209935956-231.80156-9.7488613035-126.171981203.6886.83793854.408-24.5951081571574646-10.29359611019978806115613658
Percentage of OperatingIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax35.829.830.832.926.029.326.226.626.623.818.821.625.322.820.020.425.630.120.415.613.8-43.613.0-3.118.625.510.3-39.020.623.01.12.421.620.01.6-9.923.328.728.711.711.7-3.517.317.924.824.320.821.30.031.930.618.5

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

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax


Other
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052011-12-31
Value5.15-21.123241715-8.7796.028-18.0025.642-4.659-16.8747.213-29.322103.6059.291158.963-20.2341.843-5.04110-5.7593.267-6.2670.0
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.5-2.73.32.11.9-1.20.0-3.11.0-0.9-3.21.3-5.62.20.81.82.32.0-5.30.4-0.92.4-1.80.7-1.20.0

Other Comprehensive Income Loss Net Of Tax

us-gaap:OtherComprehensiveIncomeLossNetOfTax

us-gaap:OtherComprehensiveIncomeLossNetOfTax


Other
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-03
Value6.645-24.839251618-8.2595.367-16.638.115-2.666-16.5647.029-29.3849.4612.77510169.313-23.5991.092-2.74113-8.2113.229-9.2471.395-0.17-0.850.8190.890.1450.576-2.52-0.021-0.5231.0740.3360.186-0.262-1.0521.3
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.6-3.23.32.02.2-1.20.0-2.91.4-0.5-3.21.2-5.61.90.62.02.42.0-6.20.3-0.53.1-2.60.7-1.80.4-0.1-0.20.20.30.00.1-0.6-0.0-0.20.20.10.00.0-0.30.3

us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents

ter:ForeignCurrencyTranslationAdjustments


Other
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-04
Value5.149-21.123241715-8.7796.028-18.0025.642-4.659-16.874-29.322103.6059.291158.963-20.2341.843-5.04210-5.7593.267
Percentage of OtherComprehensiveIncomeLossNetOfTax77.585.098.0102.184.9106.3112.3108.369.5174.8101.999.8111.4129.992.195.096.285.7168.8183.977.970.1101.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.5-2.73.32.11.9-1.20.0-3.11.0-0.9-3.2-5.62.20.81.82.32.0-5.30.4-0.92.4-1.80.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ter:ForeignCurrencyTranslationAdjustments0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceCostCredit


Other
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-03
Value-0.001-0.002-0.001-0.003-0.001-0.002-0.037-0.037-0.037-0.037-0.061-0.062-0.061-0.068-0.068-0.068-0.068-0.077-0.081-0.024-0.08
Percentage of OtherComprehensiveIncomeLossNetOfTax-0.00.0-0.0-0.0-0.00.0-0.70.2-0.51.40.40.2-0.6-2.5-0.7-0.4-0.70.3-7.40.9-0.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.0-0.0-0.0-0.0-0.0-0.00.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceCostCredit0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Other
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-31
Value1.497-3.7140.497-0.3542.8090.522-0.6241.4092.512.030.371-0.001-1.019-0.7620.8630.9030.418-3.288-0.672.3242.988-2.3780.036-2.9061.469-0.096-0.7760.8930.9630.096
Percentage of OtherComprehensiveIncomeLossNetOfTax22.515.02.0-2.115.1-6.3-11.6-8.530.9-76.1-2.20.0-10.8-27.58.65.44.513.9-61.4-84.822.729.01.131.4105.356.591.3109.0108.266.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.1-0.50.1-0.00.30.10.00.20.40.40.1-0.0-0.2-0.20.20.10.1-0.9-0.20.40.7-0.70.0-0.60.4-0.0-0.20.20.30.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-01
Value6.645-24.839251618-8.2595.367-16.638.115-2.666-16.5647.028-29.385
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.6-3.23.32.02.2-1.20.0-2.91.4-0.5-3.21.2-5.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.0

Other Nonoperating Income Expense

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:OtherNonoperatingIncomeExpense


Other
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-302019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-31
Value0.087-3.824-5.597-0.7644.017-6.849-22.965-2.158-2.665-2.447-1.4452.954-3.405-0.176-0.805-1.023-0.439-0.8120.516-1.7790.9210.0090.147-0.364-0.5960.1165.66-0.4630.654-0.382-0.1834-0.414-0.019-0.503
Percentage of OtherNonoperatingIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.0-0.5-0.7-0.10.5-1.0-3.5-0.4-0.5-0.4-0.30.6-0.6-0.0-0.2-0.2-0.1-0.10.1-0.50.20.00.0-0.1-0.10.01.7-0.10.1-0.1-0.112.0-0.1-0.0-0.2

us-gaap:OtherNonoperatingIncomeExpense us-gaap:IncomeStatementLocation, us-gaap:StatementBusinessSegments

us-gaap:OtherOperatingIncomeExpense, ter:CorporateAndEliminations


Other
Period End2021-07-042021-04-04
Value1.1754.069
Percentage of OtherNonoperatingIncomeExpense1350.6-106.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OtherOperatingIncomeExpense ter:CorporateAndEliminations0.00.0

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-07-012018-04-01
Value3282051962221881761251359710914310186
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax30.226.325.927.222.525.00.023.317.322.127.719.217.8

Research And Development Expense Excluding Acquired In Process Cost

us-gaap:ResearchAndDevelopmentExpenseExcludingAcquiredInProcessCost

us-gaap:ResearchAndDevelopmentExpenseExcludingAcquiredInProcessCost


Research
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-302019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-06-302012-04-012012-03-312011-12-312011-10-022011-09-302011-07-032011-06-302011-04-032011-03-312010-12-312010-10-032010-07-042010-04-04
Value11010010094948586777781767477757470778176707176737074757179717367646867626163666660605646454748474750494947
Percentage of ResearchAndDevelopmentExpenseExcludingAcquiredInProcessCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax10.112.813.311.611.212.113.313.413.414.415.514.413.614.315.314.715.311.716.718.417.414.317.022.315.914.820.924.515.114.020.922.615.915.822.424.813.612.112.115.215.219.013.613.311.511.812.712.50.010.011.115.0

Revenue From Contract With Customer Excluding Assessed Tax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax


Revenue
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-312020-03-292019-12-312019-09-302019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-06-302012-04-012012-03-312011-12-312011-10-022011-09-302011-07-032011-06-302011-04-032011-03-312010-12-312010-10-032010-07-042010-04-04
Value1085781758819838494704654582582564494519566526487479503696456379410531430318465512342323478525321285433428280248463548548396396296344344410410377377352491445319
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService

us-gaap:Product


Revenue
Period End2020-12-312020-09-272020-06-282020-03-312020-03-292019-12-312019-09-302019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-02
Value647697734393610548488488457393420470434403388412610373
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax85.385.187.679.686.783.883.983.981.179.681.083.182.482.981.082.087.681.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax85.385.187.679.686.783.883.983.981.179.681.083.182.482.981.082.087.681.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Product100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Service


Revenue
Period End2020-12-312020-09-272020-06-282020-03-312020-03-292019-12-312019-09-302019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-02
Value1111211041009310693931061009895928391908683
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax14.714.912.420.413.316.216.116.118.920.419.016.917.617.119.018.012.418.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax14.714.912.420.413.316.216.116.118.920.419.016.917.617.119.018.012.418.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Service100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Revenues

us-gaap:Revenues

us-gaap:Revenues


Revenues
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-312020-03-292019-12-312019-09-302019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-06-302012-04-012012-03-312011-12-312011-10-022011-09-302011-07-032011-06-302011-04-032011-03-312010-12-312010-10-032010-07-042010-04-04
Value1085781758819838494704654582582564494519566526487479503696456379410531430318465512342323478525321285433428280248463548548396396296344344410410377377352491445319
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Revenues us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments

ter:AutoguideLlc, ter:IndustrialAutomation


Revenuesus-gaap:
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-29
Value0.2090.2192.7265.2683.9531.47
Percentage of Revenues0.00.00.40.60.50.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.40.60.50.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ter:AutoguideLlc ter:IndustrialAutomation0.00.00.00.00.00.0

ter:Memory, ter:SemiconductorTest


Revenuesus-gaap:
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-31
Value9210770142848482735848
Percentage of Revenues8.513.89.217.410.112.012.712.610.39.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax8.513.89.217.410.112.00.012.610.39.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ter:Memory ter:SemiconductorTest0.00.00.00.00.00.00.00.00.00.0

ter:MobileIndustrialRobotsAps, ter:IndustrialAutomation


Revenuesus-gaap:
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-31
Value15141410119.138159.631109.106
Percentage of Revenues1.51.81.91.21.31.32.31.71.91.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.51.81.91.21.31.30.01.71.91.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ter:MobileIndustrialRobotsAps ter:IndustrialAutomation0.00.00.00.00.00.00.00.00.00.0

ter:Soc, ter:SemiconductorTest


Revenuesus-gaap:
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-31
Value741420453449574400356324316292
Percentage of Revenues68.353.859.854.968.556.854.455.756.159.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax68.353.859.854.968.556.80.055.756.159.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ter:Soc ter:SemiconductorTest0.00.00.00.00.00.00.00.00.00.0

ter:UniversalRobots, ter:IndustrialAutomation


Revenuesus-gaap:
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-31
Value76657553434971596457
Percentage of Revenues7.08.49.96.55.27.111.010.211.411.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.08.49.96.55.27.10.010.211.411.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ter:UniversalRobots ter:IndustrialAutomation0.00.00.00.00.00.00.00.00.00.0

us-gaap:Revenues us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments, us-gaap:TimingOfTransferOfGoodOrService

ter:AutoguideLlc, ter:IndustrialAutomation, us-gaap:TransferredAtPointInTime


Revenuesus-gaap:
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-29
Value0.0-0.122.3034.0763.4081.124
Percentage of Revenues0.0-0.00.30.50.40.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.0-0.00.30.50.40.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ter:AutoguideLlc ter:IndustrialAutomation us-gaap:TransferredAtPointInTime0.00.00.00.00.00.0

ter:AutoguideLlc, ter:IndustrialAutomation, us-gaap:TransferredOverTime


Revenuesus-gaap:
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-29
Value0.2090.3390.4231.1920.5450.346
Percentage of Revenues0.00.00.10.10.10.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.10.10.10.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ter:AutoguideLlc ter:IndustrialAutomation us-gaap:TransferredOverTime0.00.00.00.00.00.0

ter:Memory, ter:SemiconductorTest, us-gaap:TransferredAtPointInTime


Revenuesus-gaap:
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-31
Value8410165137807977685343
Percentage of Revenues7.813.08.616.89.511.311.811.89.68.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.813.08.616.89.511.30.011.89.68.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ter:Memory ter:SemiconductorTest us-gaap:TransferredAtPointInTime0.00.00.00.00.00.00.00.00.00.0

ter:Memory, ter:SemiconductorTest, us-gaap:TransferredOverTime


Revenuesus-gaap:
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-31
Value8.0745.9414.8844.5074.5424.9525.5884.754.3014.272
Percentage of Revenues0.70.80.60.50.50.70.90.80.80.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.70.80.60.50.50.70.00.80.80.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ter:Memory ter:SemiconductorTest us-gaap:TransferredOverTime0.00.00.00.00.00.00.00.00.00.0

ter:MobileIndustrialRobotsAps, ter:IndustrialAutomation, us-gaap:TransferredAtPointInTime


Revenuesus-gaap:
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-31
Value15141410119.097159.631109.106
Percentage of Revenues1.41.81.91.21.31.32.31.71.91.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.41.81.91.21.31.30.01.71.91.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ter:MobileIndustrialRobotsAps ter:IndustrialAutomation us-gaap:TransferredAtPointInTime0.00.00.00.00.00.00.00.00.00.0

ter:MobileIndustrialRobotsAps, ter:IndustrialAutomation, us-gaap:TransferredOverTime


Revenuesus-gaap:
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-29
Value0.8090.0670.0350.0590.0760.041
Percentage of Revenues0.10.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ter:MobileIndustrialRobotsAps ter:IndustrialAutomation us-gaap:TransferredOverTime0.00.00.00.00.00.0

ter:Soc, ter:SemiconductorTest, us-gaap:TransferredAtPointInTime


Revenuesus-gaap:
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-31
Value675364397393520348293273265238
Percentage of Revenues62.346.652.448.062.149.444.946.947.048.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax62.346.652.448.062.149.40.046.947.048.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ter:Soc ter:SemiconductorTest us-gaap:TransferredAtPointInTime0.00.00.00.00.00.00.00.00.00.0

ter:Soc, ter:SemiconductorTest, us-gaap:TransferredOverTime


Revenuesus-gaap:
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-31
Value65565555545262515154
Percentage of Revenues6.17.27.46.86.47.49.58.89.110.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.17.27.46.86.47.40.08.89.110.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ter:Soc ter:SemiconductorTest us-gaap:TransferredOverTime0.00.00.00.00.00.00.00.00.00.0

ter:UniversalRobots, ter:IndustrialAutomation, us-gaap:TransferredAtPointInTime


Revenuesus-gaap:
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-31
Value74647351414769576255
Percentage of Revenues6.98.29.76.35.06.710.69.911.011.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.98.29.76.35.06.70.09.911.011.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ter:UniversalRobots ter:IndustrialAutomation us-gaap:TransferredAtPointInTime0.00.00.00.00.00.00.00.00.00.0

ter:UniversalRobots, ter:IndustrialAutomation, us-gaap:TransferredOverTime


Revenuesus-gaap:
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-31
Value1.6651.5941.6411.6861.7472.1952.1531.8352.2061.651
Percentage of Revenues0.20.20.20.20.20.30.30.30.40.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.20.20.20.20.20.30.00.30.40.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ter:UniversalRobots ter:IndustrialAutomation us-gaap:TransferredOverTime0.00.00.00.00.00.00.00.00.00.0

us-gaap:Revenues us-gaap:ProductOrService

us-gaap:Product


Revenuesus-gaap:
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-312020-03-292019-12-312019-09-302019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-02
Value951660647697734393610548488488457393420470434403388412610373
Percentage of Revenues87.784.585.385.187.679.686.783.883.983.981.179.681.083.182.482.981.082.087.681.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax87.784.585.385.187.679.686.783.883.983.981.179.681.083.182.482.981.082.087.681.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Product0.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Service


Revenuesus-gaap:
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-312020-03-292019-12-312019-09-302019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-02
Value1331211111211041009310693931061009895928391908683
Percentage of Revenues12.315.514.714.912.420.413.316.216.116.118.920.419.016.917.617.119.018.012.418.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.315.514.714.912.420.413.316.216.116.118.920.419.016.917.617.119.018.012.418.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Service0.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Revenues us-gaap:StatementBusinessSegments

ter:CorporateAndOthers


Revenuesus-gaap:
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-01
Value-0.146-0.143-0.31-0.041-0.2530.0-0.113-0.16-0.089-0.151-0.603-0.272-0.11-0.221
Percentage of Revenues-0.0-0.0-0.0-0.0-0.00.0-0.0-0.0-0.0-0.0-0.1-0.0-0.0-0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.0-0.0-0.0-0.0-0.00.00.0-0.0-0.0-0.0-0.1-0.0-0.0-0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ter:CorporateAndOthers0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

ter:IndustrialAutomation


Revenuesus-gaap:
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-05
Value9279916858608868746699496248544039363323251622163.723
Percentage of Revenues8.510.212.18.47.08.613.511.813.213.419.18.811.810.011.38.05.67.98.95.74.73.96.93.40.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax8.510.212.18.47.08.60.011.813.213.419.18.811.810.011.38.05.67.98.95.74.73.96.93.40.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ter:IndustrialAutomation0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

ter:SemiconductorTest


Revenuesus-gaap:
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312010-10-032010-07-04
Value833528523592659484439397374340341417360373316396593355270322435340204325400270237380421261214304292211184310365267202241343319262448413
Percentage of Revenues76.867.669.072.378.668.867.168.366.569.065.873.668.376.666.178.885.177.871.278.581.978.964.369.978.179.173.579.580.281.575.370.268.275.474.167.166.667.568.270.183.684.674.491.292.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax76.867.669.072.378.668.80.068.366.569.065.873.668.376.666.178.885.177.871.278.581.978.964.369.978.179.173.579.580.281.50.070.268.275.474.167.166.667.50.070.183.684.674.491.292.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ter:SemiconductorTest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

ter:SystemsTestGroup


Revenuesus-gaap:
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312010-10-032010-07-04
Value104132103118711168273735839656943793536395037485359694537454335384436373539337197661026757474332
Percentage of Revenues9.717.013.714.48.616.512.612.613.011.87.611.613.28.816.77.15.38.713.29.09.212.518.614.88.910.914.29.06.711.915.68.38.612.616.07.313.024.622.329.916.415.413.68.87.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax9.717.013.714.48.616.50.012.613.011.87.611.613.28.816.77.15.38.713.29.09.212.518.614.88.910.914.29.06.711.90.08.38.612.616.07.313.024.60.029.916.415.413.68.87.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ter:SystemsTestGroup0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

ter:WirelessTest


Revenuesus-gaap:
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-01
Value544039404943444241293934352228302725252722203255623439546821259399332411811131
Percentage of Revenues5.15.25.24.95.96.26.87.37.35.97.76.16.74.65.96.14.05.56.76.84.24.710.111.912.39.912.311.513.16.69.021.523.212.09.925.620.47.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.15.25.24.95.96.20.07.37.35.97.76.16.74.65.96.14.05.56.76.84.24.710.111.912.39.912.311.513.16.60.021.523.212.09.925.620.47.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ter:WirelessTest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CorporateAndOther


Revenuesus-gaap:
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-01
Value-0.146-0.143-0.31-0.041-0.253-0.113-0.16-0.089-0.151-0.603-0.272-0.11-0.221
Percentage of Revenues-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.1-0.0-0.0-0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.0-0.0-0.0-0.0-0.00.0-0.0-0.0-0.0-0.1-0.0-0.0-0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:CorporateAndOther0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Revenues us-gaap:StatementBusinessSegments, us-gaap:TimingOfTransferOfGoodOrService

ter:SystemsTestGroup, us-gaap:TransferredAtPointInTime


Revenuesus-gaap:
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-31
Value88119881015710070616045
Percentage of Revenues8.115.311.712.36.914.310.710.710.79.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax8.115.311.712.36.914.30.010.710.79.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ter:SystemsTestGroup us-gaap:TransferredAtPointInTime0.00.00.00.00.00.00.00.00.00.0

ter:SystemsTestGroup, us-gaap:TransferredOverTime


Revenuesus-gaap:
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-31
Value16131417141512111312
Percentage of Revenues1.51.71.92.11.72.21.91.92.42.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.51.71.92.11.72.20.01.92.42.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ter:SystemsTestGroup us-gaap:TransferredOverTime0.00.00.00.00.00.00.00.00.00.0

ter:WirelessTest, us-gaap:TransferredAtPointInTime


Revenuesus-gaap:
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-31
Value51373837464141393927
Percentage of Revenues4.84.85.14.65.55.86.46.97.05.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.84.85.14.65.55.80.06.97.05.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ter:WirelessTest us-gaap:TransferredAtPointInTime0.00.00.00.00.00.00.00.00.00.0

ter:WirelessTest, us-gaap:TransferredOverTime


Revenuesus-gaap:
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-31
Value3.2743.0181.3122.6032.8382.4293.1572.3162.01.587
Percentage of Revenues0.30.40.20.30.30.30.50.40.40.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.30.40.20.30.30.30.00.40.40.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ter:WirelessTest us-gaap:TransferredOverTime0.00.00.00.00.00.00.00.00.00.0

us-gaap:CorporateAndOther, us-gaap:TransferredAtPointInTime


Revenuesus-gaap:
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282019-12-312019-09-292019-06-302019-03-31
Value-0.146-0.143-0.31-0.041-0.253-0.113-0.16-0.089-0.151
Percentage of Revenues-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.0-0.0-0.0-0.0-0.00.0-0.0-0.0-0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:CorporateAndOther us-gaap:TransferredAtPointInTime0.00.00.00.00.00.00.00.00.0

us-gaap:Revenues us-gaap:StatementGeographical

srt:Americas


Revenuesus-gaap:
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-31
Value10081102876876105788073
Percentage of Revenues9.310.413.510.78.210.916.113.514.314.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax9.310.413.510.78.210.90.013.514.314.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:Americas0.00.00.00.00.00.00.00.00.00.0

srt:AsiaPacific


Revenuesus-gaap:
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-01
Value92564559568672656917231.4531.6581.7421.8542.293.6254.269
Percentage of Revenues85.382.678.583.886.680.8263.30.20.30.40.40.40.70.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax85.382.678.583.886.680.80.00.20.30.40.40.40.70.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:AsiaPacific0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:EMEA


Revenuesus-gaap:
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-31
Value59546045435864525555
Percentage of Revenues5.57.08.05.55.28.39.89.19.911.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.57.08.05.55.28.30.09.19.911.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:EMEA0.00.00.00.00.00.00.00.00.00.0

us-gaap:Revenues us-gaap:StatementGeographical, us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments

srt:Americas, ter:AutoguideLlc, ter:IndustrialAutomation


Revenuesus-gaap:
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-29
Value0.2090.2192.7265.2683.9531.47
Percentage of Revenues0.00.00.40.60.50.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.40.60.50.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:Americas ter:AutoguideLlc ter:IndustrialAutomation0.00.00.00.00.00.0

srt:Americas, ter:Memory, ter:SemiconductorTest


Revenuesus-gaap:
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-31
Value3.6723.421.5183.730.8556.8962.0984.0858.7838.763
Percentage of Revenues0.30.40.20.50.11.00.30.71.61.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.30.40.20.50.11.00.00.71.61.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:Americas ter:Memory ter:SemiconductorTest0.00.00.00.00.00.00.00.00.00.0

srt:Americas, ter:MobileIndustrialRobotsAps, ter:IndustrialAutomation


Revenuesus-gaap:
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-31
Value6.8975.1536.9333.9812.393.4655.2862.822.7833.539
Percentage of Revenues0.60.70.90.50.30.50.80.50.50.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.60.70.90.50.30.50.00.50.50.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:Americas ter:MobileIndustrialRobotsAps ter:IndustrialAutomation0.00.00.00.00.00.00.00.00.00.0

srt:Americas, ter:Soc, ter:SemiconductorTest


Revenuesus-gaap:
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-31
Value21202617161726141516
Percentage of Revenues2.02.73.52.21.92.54.12.52.83.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.02.73.52.21.92.50.02.52.83.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:Americas ter:Soc ter:SemiconductorTest0.00.00.00.00.00.00.00.00.00.0

srt:Americas, ter:UniversalRobots, ter:IndustrialAutomation


Revenuesus-gaap:
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-31
Value24182116111421161715
Percentage of Revenues2.32.32.82.01.42.13.32.93.23.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.32.32.82.01.42.10.02.93.23.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:Americas ter:UniversalRobots ter:IndustrialAutomation0.00.00.00.00.00.00.00.00.00.0

srt:AsiaPacific, ter:Memory, ter:SemiconductorTest


Revenuesus-gaap:
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-31
Value8710467137827680684738
Percentage of Revenues8.013.38.916.89.810.812.411.88.47.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax8.013.38.916.89.810.80.011.88.47.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:AsiaPacific ter:Memory ter:SemiconductorTest0.00.00.00.00.00.00.00.00.00.0

srt:AsiaPacific, ter:MobileIndustrialRobotsAps, ter:IndustrialAutomation


Revenuesus-gaap:
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-31
Value2.4393.4472.081.5661.2321.5933.3051.82.6811.727
Percentage of Revenues0.20.40.30.20.10.20.50.30.50.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.20.40.30.20.10.20.00.30.50.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:AsiaPacific ter:MobileIndustrialRobotsAps ter:IndustrialAutomation0.00.00.00.00.00.00.00.00.00.0

srt:AsiaPacific, ter:Soc, ter:SemiconductorTest


Revenuesus-gaap:
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-31
Value710387414420547362312297285260
Percentage of Revenues65.549.554.651.465.351.547.751.150.752.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax65.549.554.651.465.351.50.051.150.752.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:AsiaPacific ter:Soc ter:SemiconductorTest0.00.00.00.00.00.00.00.00.00.0

srt:AsiaPacific, ter:UniversalRobots, ter:IndustrialAutomation


Revenuesus-gaap:
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-31
Value18172014141018151814
Percentage of Revenues1.72.32.71.81.71.52.92.73.33.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.72.32.71.81.71.50.02.73.33.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:AsiaPacific ter:UniversalRobots ter:IndustrialAutomation0.00.00.00.00.00.00.00.00.00.0

us-gaap:EMEA, ter:Memory, ter:SemiconductorTest


Revenuesus-gaap:
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-31
Value1.4830.3641.2191.421.2271.344-0.1540.5292.30.433
Percentage of Revenues0.10.00.20.20.10.2-0.00.10.40.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.00.20.20.10.20.00.10.40.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:EMEA ter:Memory ter:SemiconductorTest0.00.00.00.00.00.00.00.00.00.0

us-gaap:EMEA, ter:MobileIndustrialRobotsAps, ter:IndustrialAutomation


Revenuesus-gaap:
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-31
Value6.5645.5315.1764.6877.654.086.5695.0115.0413.84
Percentage of Revenues0.60.70.70.60.90.61.00.90.90.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.60.70.70.60.90.60.00.90.90.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:EMEA ter:MobileIndustrialRobotsAps ter:IndustrialAutomation0.00.00.00.00.00.00.00.00.00.0

us-gaap:EMEA, ter:Soc, ter:SemiconductorTest


Revenuesus-gaap:
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-31
Value9.011121311102017121516
Percentage of Revenues0.81.61.71.41.32.82.62.12.73.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.81.61.71.41.32.80.02.12.73.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:EMEA ter:Soc ter:SemiconductorTest0.00.00.00.00.00.00.00.00.00.0

us-gaap:EMEA, ter:UniversalRobots, ter:IndustrialAutomation


Revenuesus-gaap:
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-31
Value33293222172431262726
Percentage of Revenues3.13.84.32.72.13.44.84.64.95.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.13.84.32.72.13.40.04.64.95.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:EMEA ter:UniversalRobots ter:IndustrialAutomation0.00.00.00.00.00.00.00.00.00.0

us-gaap:Revenues us-gaap:StatementGeographical, us-gaap:StatementBusinessSegments

srt:Americas, ter:SystemsTestGroup


Revenuesus-gaap:
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-31
Value36273635282839332926
Percentage of Revenues3.33.54.84.33.44.06.05.85.35.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.33.54.84.33.44.00.05.85.35.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:Americas ter:SystemsTestGroup0.00.00.00.00.00.00.00.00.00.0

srt:Americas, ter:WirelessTest


Revenuesus-gaap:
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-31
Value7.1075.7697.2915.2115.3534.6889.7236.3445.9262.241
Percentage of Revenues0.70.71.00.60.60.71.51.11.10.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.70.71.00.60.60.70.01.11.10.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:Americas ter:WirelessTest0.00.00.00.00.00.00.00.00.00.0

srt:Americas, us-gaap:CorporateAndOther


Revenuesus-gaap:
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282019-12-312019-09-292019-06-302019-03-31
Value-0.146-0.143-0.31-0.041-0.253-0.113-0.16-0.089-0.151
Percentage of Revenues-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.0-0.0-0.0-0.0-0.00.0-0.0-0.0-0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:Americas us-gaap:CorporateAndOther0.00.00.00.00.00.00.00.00.0

srt:AsiaPacific, ter:SystemsTestGroup


Revenuesus-gaap:
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-31
Value61996178388038323824
Percentage of Revenues5.612.78.19.64.611.45.85.56.84.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.612.78.19.64.611.40.05.56.84.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:AsiaPacific ter:SystemsTestGroup0.00.00.00.00.00.00.00.00.00.0

srt:AsiaPacific, ter:WirelessTest


Revenuesus-gaap:
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-01
Value4533303341371260.0750.0340.0320.0760.1710.3250.188
Percentage of Revenues4.24.34.04.15.05.419.30.00.00.00.00.00.10.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.24.34.04.15.05.40.00.00.00.00.00.00.10.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:AsiaPacific ter:WirelessTest0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:EMEA, ter:SystemsTestGroup


Revenuesus-gaap:
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-31
Value7.3335.6585.8074.4954.6567.7685.1827.1785.3057.126
Percentage of Revenues0.70.70.80.50.61.10.81.20.91.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.70.70.80.50.61.10.01.20.91.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:EMEA ter:SystemsTestGroup0.00.00.00.00.00.00.00.00.00.0

us-gaap:EMEA, ter:WirelessTest


Revenuesus-gaap:
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-31
Value1.9841.5972.1581.4281.9250.9923.8171.2680.6680.781
Percentage of Revenues0.20.20.30.20.20.10.60.20.10.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.20.20.30.20.20.10.00.20.10.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:EMEA ter:WirelessTest0.00.00.00.00.00.00.00.00.00.0

us-gaap:Revenues us-gaap:TimingOfTransferOfGoodOrService

us-gaap:TransferredAtPointInTime


Revenuesus-gaap:
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-31
Value989701680736760626568510490419
Percentage of Revenues91.189.789.689.990.789.086.987.787.084.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax91.189.789.689.990.789.00.087.787.084.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:TransferredAtPointInTime0.00.00.00.00.00.00.00.00.00.0

us-gaap:TransferredOverTime


Revenuesus-gaap:
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-31
Value96807883777785717374
Percentage of Revenues8.910.310.410.19.311.013.112.313.015.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax8.910.310.410.19.311.00.012.313.015.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:TransferredOverTime0.00.00.00.00.00.00.00.00.00.0

Selling General And Administrative Expense

us-gaap:SellingGeneralAndAdministrativeExpense

us-gaap:SellingGeneralAndAdministrativeExpense


Selling
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-302019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-06-302012-04-012012-03-312011-12-312011-10-022011-09-302011-07-032011-06-302011-04-032011-03-312010-12-312010-10-032010-07-042010-04-04
Value140129124115113111117109109108102100100999088868984767881797977777291737778697269677069737367676455545758585757605754
Percentage of SellingGeneralAndAdministrativeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.916.616.414.113.515.817.918.818.819.320.619.417.718.918.618.417.112.818.620.119.215.318.425.016.615.021.028.215.314.724.324.416.816.124.228.415.113.413.417.117.121.916.115.914.014.115.415.316.212.313.017.1

Assets

us-gaap:Assets

us-gaap:Assets


Assets
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312009-12-31
Value40003719365234363249282027872698267126162706288229312995310930893030284227622365240725482548266126922512253826952630243326292611250623892429246324342238218819621998187418101235
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets us-gaap:StatementBusinessSegments

ter:CorporateAndOthers


Assetsus-gaap:
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-01
Value15301520162414351160101211011139110810761263139113841679
Percentage of Assets38.340.944.541.835.735.939.542.241.541.246.748.347.256.1
Percentage of Assets38.340.944.541.835.735.939.542.241.541.246.748.347.256.1
Percentage of Assets ter:CorporateAndOthers100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ter:IndustrialAutomation


Assetsus-gaap:
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-05
Value68717971215566264367158060159660783597406368508349331317340346350344360358
Percentage of Assets17.24.819.54.520.422.824.121.522.522.822.42.920.413.611.816.511.511.611.514.414.413.813.513.513.3
Percentage of Assets17.24.819.54.520.422.824.121.522.522.822.42.920.413.611.816.511.511.611.514.414.413.813.513.513.3
Percentage of Assets ter:IndustrialAutomation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ter:SemiconductorTest


Assetsus-gaap:
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292013-12-312012-12-312011-12-31
Value15181243107010691192921784757745770669709765758597598766740557522731664610591649596580748747632604581
Percentage of Assets38.033.429.331.136.732.728.228.127.929.524.724.626.125.319.219.425.326.020.222.130.426.124.022.224.123.722.927.828.424.124.926.5
Percentage of Assets38.033.429.331.136.732.728.228.127.929.524.724.626.125.319.219.425.326.020.222.130.426.124.022.224.123.722.927.828.424.124.926.5
Percentage of Assets ter:SemiconductorTest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ter:SystemsTestGroup


Assetsus-gaap:
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292013-12-312012-12-312011-12-31
Value146672138667126137131126123988861710790971001081061109091901021099594958371797177
Percentage of Assets3.718.13.819.43.94.94.74.74.63.83.321.43.73.03.13.23.63.84.03.83.83.64.04.13.53.73.73.12.73.02.93.5
Percentage of Assets3.718.13.819.43.94.94.74.74.63.83.321.43.73.03.13.23.63.84.03.83.83.64.04.13.53.73.73.12.73.02.93.5
Percentage of Assets ter:SystemsTestGroup100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ter:WirelessTest


Assetsus-gaap:
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292013-12-312012-12-312011-12-31
Value117104106108108106979493737779775959616261626561408427447485465478614638645672725
Percentage of Assets2.92.82.93.23.33.83.53.53.52.82.92.82.62.01.92.02.12.22.32.82.616.016.816.818.018.518.922.824.324.527.733.2
Percentage of Assets2.92.82.93.23.33.83.53.53.52.82.92.82.62.01.92.02.12.22.32.82.616.016.816.818.018.518.922.824.324.527.733.2
Percentage of Assets ter:WirelessTest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Liabilities

us-gaap:Liabilities

us-gaap:Liabilities


Liabilities
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312009-12-31
Value148613931441144215041269130612161192114611841214119110901155979981922933583662553582616618454459505529443644660639598650678749689683592664647688570
Percentage of Liabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets37.137.539.542.046.345.046.945.144.643.843.842.140.736.437.231.732.432.533.824.727.521.722.923.223.018.118.118.720.118.224.525.325.525.026.827.530.830.831.230.233.234.538.046.2

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:LiabilitiesAndStockholdersEquity


Liabilities
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312009-12-31
Value40003719365234363249282027872698267126162706288229312995310930893030284227622365240725482548266126922512253826952630243326292611250623892429246324342238218819621998187418101235
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312009-12-312008-12-312007-12-31
Value24932324220719931744155014801482147914701522166717391904195321092048191918281782174519951965204520742057207821892101198919851951186617911778178516851548150513691333122711226647091229
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets62.362.560.458.053.755.053.154.955.456.256.257.959.363.662.868.367.667.566.275.372.578.377.176.877.081.981.981.379.981.875.574.774.575.073.272.569.269.268.869.866.865.562.053.80.00.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

ter:ForeignCurrencyTranslationAdjustments


Stockholders
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-05
Value9.4154.266250.617-16.488-32.293-23.514-29.542-11.54-17.182-12.5234.351-2.8622615123.023-12.958-21.921-1.687-3.531.512-8.759-3.0-6.267
Percentage of StockholdersEquity0.40.21.20.0-0.9-2.1-1.6-2.0-0.8-1.2-0.80.3-0.21.40.80.60.1-0.7-1.2-0.1-0.20.1-0.4-0.1-0.3
Percentage of Assets0.20.10.70.0-0.5-1.1-0.8-1.1-0.4-0.7-0.50.2-0.10.90.50.40.1-0.5-0.8-0.1-0.10.1-0.3-0.1-0.2
Percentage of Assets ter:ForeignCurrencyTranslationAdjustments0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceCostCredit


Stockholders
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312014-12-31
Value1.171.1711.1731.1741.1771.1781.181.2171.2541.2911.3281.3891.451.5121.4951.5631.6311.6991.7671.8441.9251.9492.0292.324
Percentage of StockholdersEquity0.00.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.1
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.10.00.10.10.10.10.10.10.10.10.1
Percentage of Assets us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceCostCredit0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Stockholders
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052014-12-31
Value4.7373.246.9546.4576.8114.0023.484.1042.6950.185-1.845-2.216-2.092-2.0911.3622.1241.2610.358-0.063.2283.8981.574-1.4140.9640.9282.365
Percentage of StockholdersEquity0.20.10.30.30.40.30.20.30.20.0-0.1-0.1-0.1-0.10.10.10.10.0-0.00.20.20.1-0.10.00.00.1
Percentage of Assets0.10.10.20.20.20.10.10.20.10.0-0.1-0.1-0.1-0.10.00.10.00.0-0.00.10.20.1-0.10.00.00.1
Percentage of Assets us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value158.677338.248-8.5-27.113-18.854-24.221-7.591-15.706-13.043.524-3.5042518165.915-10.901-20.2143.3852.2935.035-8.1440.067-3.1624.6894.05.82-129.875-128.216-138.105-148.108
Percentage of StockholdersEquity0.60.41.50.4-0.5-1.7-1.3-1.6-0.5-1.1-0.90.2-0.21.41.00.80.3-0.6-1.10.20.10.3-0.40.0-0.20.20.20.3-8.6-11.4-20.8-20.9
Percentage of Assets0.40.20.90.2-0.3-1.0-0.7-0.9-0.3-0.6-0.50.1-0.10.90.60.50.2-0.4-0.70.10.10.2-0.30.0-0.10.20.20.2-5.9-7.1-11.20.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value177217651765175617301721172017121688167916711664164516381638159314801437139013471293126912021124
Percentage of StockholdersEquity71.176.080.088.199.2111.0116.2115.5114.1114.3109.899.894.686.083.987.275.369.170.175.885.9113.1180.9158.4
Percentage of Assets44.347.548.351.153.361.061.763.463.264.261.857.756.154.752.757.758.156.652.955.559.170.197.30.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value202020202020202121212122232424242527232322222121
Percentage of StockholdersEquity0.80.90.91.01.21.31.41.41.41.51.41.41.41.31.31.41.31.31.21.31.52.03.33.0
Percentage of Assets0.50.60.60.60.60.70.70.80.80.80.80.80.80.80.80.91.01.10.91.01.01.31.80.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value6845293872071.61-164.323-241.918-226.39-222.513-215.607-158.191-23.24374216272230467610566401318-41.876-421.606-287.769
Percentage of StockholdersEquity27.522.817.610.40.1-10.6-16.3-15.3-15.0-14.7-10.4-1.44.311.313.912.623.829.328.522.621.2-3.7-63.4-40.5
Percentage of Assets17.114.210.66.00.0-5.8-8.7-8.4-8.3-8.2-5.8-0.82.57.28.78.318.424.021.516.514.6-2.3-34.10.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Assets Current

us-gaap:AssetsCurrent

us-gaap:AssetsCurrent


Assets
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312009-12-31
Value2699250124152243209417021658165416161594173218791894215622702140208018541623128514121242125913361316132112431401135412611440149412821207123613111316112010991555134312501176762
Percentage of AssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets67.567.266.165.364.460.459.561.360.560.964.065.264.672.073.069.368.665.258.854.358.748.849.450.248.952.649.052.051.551.854.857.251.250.550.953.254.150.150.379.367.266.765.061.7

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashAndCashEquivalentsAtCarryingValue


Cash
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032011-01-032010-12-312010-10-032010-07-042010-04-042009-12-312008-12-312007-12-31
Value9548319149457255937735934954839268144806374294185983243072973813192642943002182942112542323415722273053384855895335731095455420397397433403342416322562
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets23.922.325.027.522.321.027.822.018.518.534.228.216.421.313.813.619.711.411.112.615.812.510.411.111.28.711.67.99.79.613.021.99.112.814.019.724.223.826.255.822.822.40.022.00.00.00.033.70.00.0

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


Cash
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022016-12-312015-12-31
Value954831914945725593773593495483926814480637429418598307264
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets23.922.325.027.522.321.027.822.018.518.534.228.216.421.313.813.619.711.110.4

Accounts Receivable Net Current

us-gaap:AccountsReceivableNetCurrent

us-gaap:AccountsReceivableNetCurrent


Accounts
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312009-12-31
Value868581497587694487362357372333291352454413272268405314192163349253211245296175151321300216157209228166153205346221129143207186176125
Percentage of AccountsReceivableNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets21.715.613.617.121.417.313.013.313.912.810.812.215.513.88.88.713.411.17.06.914.510.08.39.211.07.05.911.911.48.96.08.09.17.06.38.314.29.95.97.310.49.99.710.1

Inventory Net

us-gaap:InventoryNet

us-gaap:InventoryNet


Inventory
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312009-12-31
Value22626222219120618219617816416115315413513110712515320313511512916015312812112110510812613713712312814913913413713816013314112911790
Percentage of InventoryNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets5.77.16.15.66.36.57.16.66.26.25.75.44.64.43.54.15.17.24.94.95.46.36.04.84.54.84.14.04.85.65.24.75.16.25.75.55.76.27.36.87.16.96.57.4

Prepaid Expense And Other Assets Current

us-gaap:PrepaidExpenseAndOtherAssetsCurrent

us-gaap:PrepaidExpenseAndOtherAssetsCurrent


Prepaid
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312016-12-312013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032010-12-31
Value368347259232238227188182184194170139111112112116113979581808386646152
Percentage of PrepaidExpenseAndOtherAssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets9.29.37.16.87.38.16.86.76.97.46.34.83.83.73.64.24.54.13.93.33.33.83.93.33.12.9

Land

us-gaap:Land

us-gaap:Land


Land
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value171616161616161616161616
Percentage of Land100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.50.60.60.50.60.60.70.60.70.80.91.3

Machinery And Equipment Gross

us-gaap:MachineryAndEquipmentGross

us-gaap:MachineryAndEquipmentGross


Machinery
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value956834689647601595659600606648631631
Percentage of MachineryAndEquipmentGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets26.230.025.520.821.823.426.022.825.029.634.951.1

us-gaap:MachineryAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType

ter:TestSystemsLeasedByCustomers


Machinery
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value235.45.518192066
Percentage of MachineryAndEquipmentGross2.40.60.82.83.23.410.1
Percentage of Assets0.60.20.20.60.70.82.6
Percentage of Assets ter:TestSystemsLeasedByCustomers0.00.00.00.00.00.00.0

Noncurrent Assets

us-gaap:NoncurrentAssets

us-gaap:NoncurrentAssets


Noncurrent
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value449377279268253273329275265232231
Percentage of NoncurrentAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets12.313.610.38.69.210.713.010.510.910.612.8

us-gaap:NoncurrentAssets us-gaap:StatementGeographical

country:SG


Noncurrent
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value6235192331399942
Percentage of NoncurrentAssets13.99.36.98.812.414.630.115.4
Percentage of Assets1.71.30.70.81.11.63.91.6
Percentage of Assets country:SG0.00.00.00.00.00.00.00.0

country:US


Noncurrent
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value291252209198189198206211211192196
Percentage of NoncurrentAssets64.866.974.874.174.572.662.776.879.582.885.1
Percentage of Assets8.09.17.76.46.87.88.18.08.78.810.9
Percentage of Assets country:US0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ForeignCountry


Noncurrent
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value1581247069647412263543934
Percentage of NoncurrentAssets35.233.125.225.925.527.437.323.220.517.214.9
Percentage of Assets4.34.52.62.22.32.94.82.42.21.81.9
Percentage of Assets us-gaap:ForeignCountry0.00.00.00.00.00.00.00.00.00.00.0

Property Plant And Equipment Gross

us-gaap:PropertyPlantAndEquipmentGross

us-gaap:PropertyPlantAndEquipmentGross


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312009-12-31
Value11841049961914848849897838856847827809798800795789780782
Percentage of PropertyPlantAndEquipmentGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets32.437.735.529.430.733.335.331.935.334.434.036.236.540.839.842.143.163.3

Furniture And Fixtures Gross

us-gaap:FurnitureAndFixturesGross

us-gaap:FurnitureAndFixturesGross


Furniture
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value28299088828277819391
Percentage of FurnitureAndFixturesGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.81.03.32.83.03.23.13.13.94.2

Leasehold Improvements Gross

us-gaap:LeaseholdImprovementsGross

us-gaap:LeaseholdImprovementsGross


Leasehold
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value61595249464331302925
Percentage of LeaseholdImprovementsGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.72.11.91.61.71.71.31.21.21.2

Construction In Progress Gross

us-gaap:ConstructionInProgressGross

us-gaap:ConstructionInProgressGross


Construction
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value132.5376.276133.0322.632.5080.6223.4251.281.0730.651
Percentage of ConstructionInProgressGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.40.10.20.40.10.10.10.00.10.10.10.1

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment


Accumulated
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312009-12-31
Value789729681646595575567563590586579570565568562556548536
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets21.626.225.220.821.522.622.421.424.323.823.825.525.929.028.129.730.343.4

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment us-gaap:PropertyPlantAndEquipmentByType

ter:TestSystemsLeasedByCustomers


Accumulated
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value7.55.15.213108.510
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment0.90.70.82.11.81.51.8
Percentage of Assets0.20.20.20.40.40.30.4
Percentage of Assets ter:TestSystemsLeasedByCustomers0.00.00.00.00.00.00.0

Amortization Of Intangible Assets

us-gaap:AmortizationOfIntangibleAssets

us-gaap:AmortizationOfIntangibleAssets


Amortization
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-302019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012018-03-312017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-06-302012-04-012012-03-312011-12-312011-10-022011-09-302011-07-032011-06-302011-04-032011-03-312010-12-312010-10-032010-07-042010-04-04
Value5.4025.5365.7526.2198.9419.8919.7849.6479.647101010119.7937.6987.77.3847.0288.1667.9527.9238.4871619192015131518181818181818181818181818196.7546.7547.2917.2917.2917.2917.2927.2917.3137.356
Percentage of AmortizationOfIntangibleAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Property Plant And Equipment Net

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:PropertyPlantAndEquipmentNet


Property
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312009-12-31
Value395402394386353332320307295283279278285281268259258253253261264266273275291308329335308278275275264264265261248238232232233232231246
Percentage of PropertyPlantAndEquipmentNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets9.910.810.811.210.911.811.511.411.110.810.39.69.79.48.68.48.58.99.211.111.010.510.710.310.812.313.012.511.711.510.510.510.611.010.910.610.210.710.611.811.712.412.819.9

Goodwill

us-gaap:Goodwill

us-gaap:Goodwill


Goodwill
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-31
Value441437453435422409416370383379381392388275252249242230223238237495488498495273273361361361361349349349349349352352352
Percentage of Goodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets11.011.812.412.713.014.514.913.714.414.514.113.613.39.28.18.18.08.18.110.19.919.519.218.718.410.910.813.413.814.913.813.413.914.614.414.214.515.816.1

us-gaap:Goodwill us-gaap:BusinessAcquisition

ter:AutoguideLlc


Goodwillus-gaap:
Period End2020-12-312019-12-312019-11-14
Value41-0.14941
Percentage of Goodwill9.1-0.00.0
Percentage of Assets1.1-0.00.0
Percentage of Assets ter:AutoguideLlc0.00.00.0

us-gaap:Goodwill us-gaap:StatementBusinessSegments

ter:IndustrialAutomation


Goodwillus-gaap:
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-05
Value4214174334154023893963503630.359864363374370257233230223211204220218222214224221
Percentage of Goodwill95.595.495.695.495.395.195.294.694.80.195.295.395.293.392.792.692.492.091.792.292.244.944.045.144.8
Percentage of Assets10.511.211.912.112.413.814.213.013.60.013.413.012.68.67.57.57.47.47.49.39.18.78.48.48.2
Percentage of Assets ter:IndustrialAutomation61.4233.060.8266.860.760.659.060.460.50.159.8450.362.063.363.445.364.163.964.564.763.263.462.462.562.0

ter:SemiconductorTest


Goodwillus-gaap:
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312017-12-312016-12-312015-12-31
Value1.5441.5131.6151.5451.5061.4611.4561.4391.460.0011570.00.00.0262
Percentage of Goodwill0.30.30.40.40.40.40.30.40.40.00.00.00.053.8
Percentage of Assets0.00.00.00.00.00.10.10.10.10.00.00.00.010.3
Percentage of Assets ter:SemiconductorTest0.10.10.20.10.10.20.20.20.20.00.00.00.043.0

ter:SystemsTestGroup


Goodwillus-gaap:
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052014-12-31
Value1010101010101010100.01051610101010101010101010101010101010
Percentage of Goodwill2.42.42.32.42.52.62.52.82.70.02.82.72.73.84.24.24.34.64.74.44.42.12.22.12.13.8
Percentage of Assets0.30.30.30.30.30.40.40.40.40.00.40.40.40.40.30.30.30.40.40.40.40.40.40.40.40.4
Percentage of Assets ter:SystemsTestGroup7.21.67.61.68.37.78.08.38.50.011.91.79.811.610.810.59.79.99.511.611.511.610.39.611.011.1

ter:WirelessTest


Goodwillus-gaap:
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052014-12-312013-12-312012-12-312012-09-302011-12-31
Value7.9767.9767.9767.9767.9767.9767.9767.9767.9760.0079767.9767.9767.9767.9767.9767.9767.9767.9767.9767.9767.976262262262262262361349349352
Percentage of Goodwill1.81.81.81.81.91.91.92.22.10.02.12.02.12.93.23.23.33.53.63.33.453.053.852.853.196.2100.0100.0100.0100.0
Percentage of Assets0.20.20.20.20.20.30.30.30.30.00.30.30.30.30.30.30.30.30.30.30.310.310.39.99.810.413.814.414.216.1
Percentage of Assets ter:WirelessTest6.87.67.57.37.47.58.28.48.60.010.310.010.313.413.313.012.713.012.812.112.964.461.458.854.154.956.152.00.048.6

Intangible Assets Net Excluding Goodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill


Intangible
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312009-12-31
Value8892100103107114125961091191251391488479859094100114122223239260279176190197215234252265283300318337356374392101108115122152
Percentage of IntangibleAssetsNetExcludingGoodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.22.52.83.03.34.14.53.64.14.64.64.95.12.82.52.83.03.33.64.85.18.89.49.810.47.07.57.38.29.69.610.211.312.613.113.714.616.718.05.25.46.26.812.3

Finite Lived Intangible Assets Net

us-gaap:FiniteLivedIntangibleAssetsNet

us-gaap:FiniteLivedIntangibleAssetsNet


Finite
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012017-12-312014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032010-12-31
Value88921001031071141259610911912513914879234252265283300318337356374392101108122
Percentage of FiniteLivedIntangibleAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.22.52.83.03.34.14.53.64.14.64.64.95.12.59.69.610.211.312.613.113.714.616.718.05.25.46.8

us-gaap:FiniteLivedIntangibleAssetsNet us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:CustomerRelationships


Finite
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012017-12-312014-03-302013-12-312012-12-31
Value101012121314161012141315149.327596481
Percentage of FiniteLivedIntangibleAssetsNet11.511.511.912.112.712.912.910.611.412.510.711.29.611.825.625.625.6
Percentage of Assets0.30.30.30.40.40.50.60.40.50.60.50.50.50.32.52.53.4
Percentage of Assets us-gaap:CustomerRelationships0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:DevelopedTechnologyRights


Finite
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012017-12-312014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302011-12-31
Value52556062646877586773809010146155168177190201214227266
Percentage of FiniteLivedIntangibleAssetsNet60.160.259.960.059.860.361.460.561.461.463.964.668.658.566.566.766.867.067.167.267.567.9
Percentage of Assets1.31.51.71.82.02.42.82.22.52.83.03.13.51.56.46.46.87.68.48.89.212.2
Percentage of Assets us-gaap:DevelopedTechnologyRights0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TrademarksAndTradeNames


Finite
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012017-12-312014-03-302013-12-312013-09-292013-06-302012-12-31
Value25262828293032272930313332231819202122
Percentage of FiniteLivedIntangibleAssetsNet28.428.328.227.927.526.825.728.927.225.825.524.221.829.67.97.77.67.57.2
Percentage of Assets0.60.70.80.80.91.11.21.01.11.21.21.21.10.80.80.70.80.80.9
Percentage of Assets us-gaap:TrademarksAndTradeNames0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Deferred Tax Assets Liabilities Net

us-gaap:DeferredTaxAssetsLiabilitiesNet

us-gaap:DeferredTaxAssetsLiabilitiesNet


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value7761507795354137323712
Percentage of DeferredTaxAssetsLiabilitiesNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.12.21.92.53.41.41.61.41.31.70.7

Operating Lease Right Of Use Asset

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OperatingLeaseRightOfUseAsset


Operating
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312019-01-012016-02-28
Value615154545658575756505050
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.51.41.51.61.72.12.12.12.11.90.00.0

Other Assets Noncurrent

us-gaap:OtherAssetsNoncurrent

us-gaap:OtherAssetsNoncurrent


Other
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312009-12-31
Value218.9429.38411119.2721022251111111212121212121212131313131310109.85310101419191820172020171716161619
Percentage of OtherAssetsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.50.20.30.30.40.30.40.81.00.40.40.40.40.40.40.40.40.40.40.50.50.50.50.50.50.40.40.40.40.40.60.80.80.80.80.70.80.90.80.90.80.90.91.6

Accounts Payable Current

us-gaap:AccountsPayableCurrent

us-gaap:AccountsPayableCurrent


Accounts
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312009-12-31
Value15617713315018412912611710311810010710210386791031219561103849281865947601027062676759587411710669771061098166
Percentage of AccountsPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.94.83.74.45.74.64.54.43.94.53.73.73.53.52.82.63.44.33.52.64.33.33.63.13.22.41.92.23.92.92.42.62.72.52.43.04.84.83.24.05.45.94.55.4

Accrued Income Taxes Current

us-gaap:AccruedIncomeTaxesCurrent

us-gaap:AccruedIncomeTaxesCurrent


Accrued
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012011-12-312011-10-022011-07-032011-04-032010-12-31
Value93908079895844334441362432345942432430202323214343242019151.7491125133.2211243230.865.1359.8888.1998.465
Percentage of AccruedIncomeTaxesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.32.42.22.32.72.11.61.21.71.61.30.91.11.21.91.41.40.91.10.91.00.90.91.61.61.00.80.70.60.10.41.00.50.10.51.81.00.00.30.50.40.5

Liabilities Current

us-gaap:LiabilitiesCurrent

us-gaap:LiabilitiesCurrent


Liabilities
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312009-12-31
Value985686700671729513539493467441476458452391454431439393372369455344372395402293292329361273475487465417297349425375373293352333363283
Percentage of LiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets24.618.519.219.622.518.219.318.317.516.917.615.915.413.114.614.014.513.813.515.618.913.514.614.914.911.711.512.213.711.218.118.718.617.512.314.217.516.817.114.917.717.820.122.9

Operating Lease Liability Current

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OperatingLeaseLiabilityCurrent


Operating
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-31
Value20192020201919
Percentage of OperatingLeaseLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.50.50.60.60.60.70.7

Other Accrued Liabilities Current

us-gaap:OtherAccruedLiabilitiesCurrent

us-gaap:OtherAccruedLiabilitiesCurrent


Other
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312009-12-31
Value14610577117119877093776778958364596266675156479243838568519893656362545156616459625259565754
Percentage of OtherAccruedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.72.82.13.43.73.12.53.52.92.62.93.32.92.21.92.02.22.41.92.42.03.61.73.13.22.72.03.73.52.72.42.42.22.22.32.52.62.72.92.73.03.03.24.4

Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent


Pension
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312009-12-31
Value15415215113413012513412112212111712712412411911411111010610810610610310710710610888929291959494948077787674777473115
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.94.14.13.94.04.54.84.54.64.64.34.44.24.23.93.73.73.93.94.64.44.24.14.04.04.24.33.33.53.83.53.73.84.03.93.33.23.53.53.83.94.04.09.3

Operating Lease Liability Noncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent


Operating
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-31
Value49394242434645
Percentage of OperatingLeaseLiabilityNoncurrent100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.21.01.21.21.31.61.6

Lessee Operating Lease Liability Payments Due Year Two

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo


Lessee
Period End2020-12-31
Value16
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearTwo100.0
Percentage of Assets0.5

Lessee Operating Lease Liability Payments Due Year Three

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree


Lessee
Period End2020-12-31
Value9727000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearThree100.0
Percentage of Assets0.3

Lessee Operating Lease Liability Payments Due Year Four

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour


Lessee
Period End2020-12-31
Value7215000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFour100.0
Percentage of Assets0.2

Lessee Operating Lease Liability Payments Due Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive


Lessee
Period End2020-12-31
Value5715000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFive100.0
Percentage of Assets0.2

Lessee Operating Lease Liability Payments Due After Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive


Lessee
Period End2020-12-31
Value6149000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive100.0
Percentage of Assets0.2

Operating Lease Liability

us-gaap:OperatingLeaseLiability

us-gaap:OperatingLeaseLiability


Operating
Period End2020-12-312019-12-312019-09-292019-06-302019-03-312019-01-012016-02-28
Value62656564555454
Percentage of OperatingLeaseLiability100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.72.32.42.42.10.00.0

Lessee Operating Lease Liability Payments Due

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue


Lessee
Period End2020-12-31
Value68
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue100.0
Percentage of Assets1.9

Lessee Operating Lease Liability Undiscounted Excess Amount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount


Lessee
Period End2020-12-31
Value5409000.0
Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount100.0
Percentage of Assets0.1

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312009-12-312008-12-312007-12-31
Value24932324220719931744155014801482147914701522166717391904195321092048191918281782174519951965204520742057207821892101198919851951186617911778178516851548150513691333122711226647091229
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets62.362.560.458.053.755.053.154.955.456.256.257.959.363.662.868.367.667.566.275.372.578.377.176.877.081.981.981.379.981.875.574.774.575.073.272.569.269.268.869.866.865.562.053.80.00.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

ter:ForeignCurrencyTranslationAdjustments


Stockholders
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-05
Value9.4154.266250.617-16.488-32.293-23.514-29.542-11.54-17.182-12.5234.351-2.8622615123.023-12.958-21.921-1.687-3.531.512-8.759-3.0-6.267
Percentage of StockholdersEquity0.40.21.20.0-0.9-2.1-1.6-2.0-0.8-1.2-0.80.3-0.21.40.80.60.1-0.7-1.2-0.1-0.20.1-0.4-0.1-0.3
Percentage of Assets0.20.10.70.0-0.5-1.1-0.8-1.1-0.4-0.7-0.50.2-0.10.90.50.40.1-0.5-0.8-0.1-0.10.1-0.3-0.1-0.2
Percentage of Assets ter:ForeignCurrencyTranslationAdjustments0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceCostCredit


Stockholders
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312014-12-31
Value1.171.1711.1731.1741.1771.1781.181.2171.2541.2911.3281.3891.451.5121.4951.5631.6311.6991.7671.8441.9251.9492.0292.324
Percentage of StockholdersEquity0.00.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.1
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.10.00.10.10.10.10.10.10.10.10.1
Percentage of Assets us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceCostCredit0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Stockholders
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052014-12-31
Value4.7373.246.9546.4576.8114.0023.484.1042.6950.185-1.845-2.216-2.092-2.0911.3622.1241.2610.358-0.063.2283.8981.574-1.4140.9640.9282.365
Percentage of StockholdersEquity0.20.10.30.30.40.30.20.30.20.0-0.1-0.1-0.1-0.10.10.10.10.0-0.00.20.20.1-0.10.00.00.1
Percentage of Assets0.10.10.20.20.20.10.10.20.10.0-0.1-0.1-0.1-0.10.00.10.00.0-0.00.10.20.1-0.10.00.00.1
Percentage of Assets us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value158.677338.248-8.5-27.113-18.854-24.221-7.591-15.706-13.043.524-3.5042518165.915-10.901-20.2143.3852.2935.035-8.1440.067-3.1624.6894.05.82-129.875-128.216-138.105-148.108
Percentage of StockholdersEquity0.60.41.50.4-0.5-1.7-1.3-1.6-0.5-1.1-0.90.2-0.21.41.00.80.3-0.6-1.10.20.10.3-0.40.0-0.20.20.20.3-8.6-11.4-20.8-20.9
Percentage of Assets0.40.20.90.2-0.3-1.0-0.7-0.9-0.3-0.6-0.50.1-0.10.90.60.50.2-0.4-0.70.10.10.2-0.30.0-0.10.20.20.2-5.9-7.1-11.20.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value177217651765175617301721172017121688167916711664164516381638159314801437139013471293126912021124
Percentage of StockholdersEquity71.176.080.088.199.2111.0116.2115.5114.1114.3109.899.894.686.083.987.275.369.170.175.885.9113.1180.9158.4
Percentage of Assets44.347.548.351.153.361.061.763.463.264.261.857.756.154.752.757.758.156.652.955.559.170.197.30.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value202020202020202121212122232424242527232322222121
Percentage of StockholdersEquity0.80.90.91.01.21.31.41.41.41.51.41.41.41.31.31.41.31.31.21.31.52.03.33.0
Percentage of Assets0.50.60.60.60.60.70.70.80.80.80.80.80.80.80.80.91.01.10.91.01.01.31.80.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value6845293872071.61-164.323-241.918-226.39-222.513-215.607-158.191-23.24374216272230467610566401318-41.876-421.606-287.769
Percentage of StockholdersEquity27.522.817.610.40.1-10.6-16.3-15.3-15.0-14.7-10.4-1.44.311.313.912.623.829.328.522.621.2-3.7-63.4-40.5
Percentage of Assets17.114.210.66.00.0-5.8-8.7-8.4-8.3-8.2-5.8-0.82.57.28.78.318.424.021.516.514.6-2.3-34.10.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312009-12-31
Value2020202020202021212121222324242424242425252525252626272724242323232323232323222323232221
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.50.60.60.60.60.70.70.80.80.80.80.80.80.80.80.80.80.90.91.11.11.01.01.01.01.11.11.00.91.00.90.91.01.01.01.01.01.01.01.21.21.21.31.8

Additional Paid In Capital Common Stock

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:AdditionalPaidInCapitalCommonStock


Additional
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312014-12-31
Value177217651765175617301721172017121688167916711664164516381638163116131605159315171505148914801437
Percentage of AdditionalPaidInCapitalCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets44.347.548.351.153.361.061.763.463.264.261.857.756.154.752.752.853.256.557.764.262.558.458.156.6

Retained Earnings Accumulated Deficit

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:RetainedEarningsAccumulatedDeficit


Retained
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312009-12-31
Value6845293872071.61-164.323-241.918-226.39-222.513-215.607-158.191-23.2437421627243840430023023521247646754758857961072665655556654347440740141732921731818614252-41.876-421.606
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets17.114.210.66.00.0-5.8-8.7-8.4-8.3-8.2-5.8-0.82.57.28.714.213.410.68.310.08.818.718.420.621.923.124.027.025.022.821.520.818.917.116.517.013.59.714.69.57.12.8-2.3-34.1

Accumulated Other Comprehensive Income Loss Net Of Tax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax


Accumulated
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312009-12-31
Value158.677338.248-8.5-27.113-18.854-24.221-7.591-15.706-13.043.524-3.5042518165.915-10.901-20.2143.3852.2935.035-8.1440.067-3.1626.0844.6894.8595.7094.894.03.8553.2795.7995.826.3435.2674.933-129.875-122.925-124.094-123.842-128.216-138.105
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.40.20.90.2-0.3-1.0-0.7-0.9-0.3-0.6-0.50.1-0.10.90.60.50.2-0.4-0.70.10.10.2-0.30.0-0.10.20.20.20.20.20.20.10.10.20.20.30.20.2-5.9-6.3-6.2-6.6-7.1-11.2

Treasury Stock Value

us-gaap:TreasuryStockValue

us-gaap:TreasuryStockValue


Treasury
Period End2021-01-012020-12-312020-01-012019-12-312018-12-312017-12-312016-12-31
Value600882501323823200446
Percentage of TreasuryStockValue100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.02.40.047.530.46.416.1

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

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue


Adjustments
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-01
Value121310129.811129.9337.5358.5628.9628.8337.0378.472
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 End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-01
Value121310129.811129.9337.5358.5628.9628.8337.0378.472
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 End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-07-012018-04-012017-12-312017-10-012013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312010-10-032010-07-042010-04-04
Value206382603422224321619914518186131-81.9314730943154105-36.494422481021159921011917725510726
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax19.04.934.341.826.66.10.034.225.73.635.925.0-16.830.861.60.035.624.6-13.017.053.718.62.80.027.024.85.250.252.124.28.2

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-07-012018-04-012017-12-312017-10-012013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312010-10-032010-07-042010-04-04
Value874.667-277.207-119.365-63.014-110.20811022-28.236-260.951203-44.343462-74.519-428.357-276.212184-184.252-5.815-173.323-315.162-61.091-54.364-573.49575-77.527-5.942-215.128-225.064-81.701-105.767
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax8.10.6-36.5-14.6-7.5-15.60.03.8-5.0-52.839.3-8.495.0-15.5-85.10.042.6-43.0-2.1-69.8-68.0-11.1-13.70.0167.1-18.9-1.6-61.0-45.8-18.3-33.1

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-07-012018-04-012017-12-312017-10-012013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312010-10-032010-07-042010-04-04
Value-169.235-126.661-14.892-3.049-26.45-113.895-146.413-122.723-105.453-199.76-277.385-243.708-174.41-62.466-62.1971.1366.3631.1638.608-15.748-37.174142.855-7.143-28.712108.8542.454-0.83354.956
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-15.6-16.2-2.0-0.4-3.2-16.20.0-21.1-18.7-40.4-53.4-46.3-35.8-13.0-12.40.01.50.33.1-6.3-8.02.70.70.0-8.32.62.30.7-0.28.01.6

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

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect


Cash
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-07-012018-04-012017-12-312017-10-01
Value123-82.972-31.059219131-180.431799811-443.024112-157.48920811-179.672
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.4-10.6-4.126.815.7-25.60.017.02.0-89.721.7-29.942.72.3-35.7

Deferred Income Tax Expense Benefit

us-gaap:DeferredIncomeTaxExpenseBenefit

us-gaap:DeferredIncomeTaxExpenseBenefit


Deferred
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-31
Value0.257-1.057-11.1412.616-5.338-1.825-6.479-3.492-0.6911.2063.8988.6168.696372.884-0.086-3.477-20.368-21.11-15.962-5.4966.849-3.602-8.54-1.8314.336-3.05-18.3961214-3.981-9.047-6.183-1.52-8.8618.2387.699-146.257
Percentage of DeferredIncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Accounts Receivable

us-gaap:IncreaseDecreaseInAccountsReceivable

us-gaap:IncreaseDecreaseInAccountsReceivable


Increase
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312010-10-032010-07-042010-04-04
Value28587-92.564-109.0252041263.651-12.6893741-59.869381404.961-138.5669012327-183.899542-33.85-51.37611724-171.73208458-52.307-18.8226113-52.041-140.6612492-41.134-64.32117-129.805576953
Percentage of IncreaseDecreaseInAccountsReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Inventories

us-gaap:IncreaseDecreaseInInventories

us-gaap:IncreaseDecreaseInInventories


Increase
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312010-10-032010-07-042010-04-04
Value-55.7783525-20.72619-15.8181311-0.472.917-4.6190.26621-21.19-31.919-54.0036214-18.379-30.9240.70217-9.876-17.54-5.96-12.905-19.798-15.834-2.63513-7.821-30.4134.047.418-3.6242.19-23.636-0.419-13.9724.297105.07214-7.847-16.384
Percentage of IncreaseDecreaseInInventories100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-07-012018-04-012017-12-312017-10-012013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312010-10-032010-07-042010-04-04
Value206382603422224321619914518186131-81.9314730943154105-36.494422481021159921011917725510726
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax19.04.934.341.826.66.10.034.225.73.635.925.0-16.830.861.60.035.624.6-13.017.053.718.62.80.027.024.85.250.252.124.28.2

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-302019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-06-302012-04-012012-03-312011-12-312011-10-022011-09-302011-07-032011-06-302011-04-032011-03-312010-12-312010-10-032010-07-042010-04-04
Value3282051962221881761251351359710914311910186-105.923103174856663-223.54649-0.6417110232-103.811821010.9292269666.589-16.5438811111133331295456898794966014712250
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax30.226.325.927.222.525.019.123.323.317.322.127.721.219.217.8-22.120.525.118.717.515.5-42.011.6-0.215.320.19.6-32.117.419.30.37.816.015.52.4-6.719.120.320.38.58.543.515.916.521.721.325.225.717.130.027.415.7

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Net
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-01
Value3282051962221881761251359710914311910186
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax30.226.325.927.222.525.00.023.317.322.127.721.219.217.8
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 End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-07-012018-04-01
Value3282051962221881761251359710914310186
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax30.226.325.927.222.525.00.023.317.322.127.719.217.8

Share Based Compensation

us-gaap:ShareBasedCompensation

us-gaap:ShareBasedCompensation


Share
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312010-10-032010-07-042010-04-04
Value1012111110109.075108.6359.4748.258.0819.5448.4778.3088.3678.9457.7387.5557.5327.9257.3717.6757.4427.9638.4348.3438.297159.3859.159.0549.0239.2869.23810109.8237.8327.2187.4647.8227.6177.1687.973
Percentage of ShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-07-012018-04-012017-12-312017-10-012013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312010-10-032010-07-042010-04-04
Value874.667-277.207-119.365-63.014-110.20811022-28.236-260.951203-44.343462-74.519-428.357-276.212184-184.252-5.815-173.323-315.162-61.091-54.364-573.49575-77.527-5.942-215.128-225.064-81.701-105.767
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax8.10.6-36.5-14.6-7.5-15.60.03.8-5.0-52.839.3-8.495.0-15.5-85.10.042.6-43.0-2.1-69.8-68.0-11.1-13.70.0167.1-18.9-1.6-61.0-45.8-18.3-33.1

Payments To Acquire Property Plant And Equipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment


Payments
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312010-10-032010-07-042010-04-04
Value343938624736383733252627343227232219192620232024212254603123322822273330271922222222181817
Percentage of PaymentsToAcquirePropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-07-012018-04-012017-12-312017-10-012013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312010-10-032010-07-042010-04-04
Value-169.235-126.661-14.892-3.049-26.45-113.895-146.413-122.723-105.453-199.76-277.385-243.708-174.41-62.466-62.1971.1366.3631.1638.608-15.748-37.174142.855-7.143-28.712108.8542.454-0.83354.956
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-15.6-16.2-2.0-0.4-3.2-16.20.0-21.1-18.7-40.4-53.4-46.3-35.8-13.0-12.40.01.50.33.1-6.3-8.02.70.70.0-8.32.62.30.7-0.28.01.6

Payments Of Dividends

us-gaap:PaymentsOfDividends

us-gaap:PaymentsOfDividends


Payments
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-01-31
Value161616161616151515151616171713131314121212121212121312121111
Percentage of PaymentsOfDividends100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Payments For Repurchase Of Common Stock

us-gaap:PaymentsForRepurchaseOfCommonStock

us-gaap:PaymentsForRepurchaseOfCommonStock


Payments
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-05
Value151450.00.09.4267913112190156261226134485756376128282873988146
Percentage of PaymentsForRepurchaseOfCommonStock100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Effective Income Tax Rate Continuing Operations

us-gaap:EffectiveIncomeTaxRateContinuingOperations

us-gaap:EffectiveIncomeTaxRateContinuingOperations


Effective
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-032016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302012-12-312012-09-302012-07-012011-12-312011-10-02
Value14.58.3-0.315.60.1310.1060.0190.1050.258-0.161-0.1020.1480.1580.0920.3620.1880.1540.0740.1740.037-0.0690.0320.126-0.0250.1830.2210.227-0.0120.180.171.4960.0430.210.17-0.02750.13960.27-0.65660.0301
Percentage of EffectiveIncomeTaxRateContinuingOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value0.2160.3190.5060.5310.9261.1211.5072.7063.8415.3357.19411
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value45.5929.9119.0613.9211.9310.217.896.294.644.1216.3213.8714.66
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod

ter:ProfitBeforeIncomeAndTaxPerformanceBasedRestrictedStockUnits


Share
Period End2021-07-042021-04-042020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-03
Value0100000.000100000.0000100000.000100000.0000100000.0000100000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod0.0100.00.00.0100.00.00.00.0100.00.00.0100.00.00.00.0100.00.00.00.0100.0

ter:TotalShareholderReturnPerformanceBasedRestrictedStockUnits


Share
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302014-01-31
Value0100000.0000100000.0000100000.000100000.0000100000.0000100000.0000200000.0000100000.0100000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod0.0100.00.00.00.0100.00.00.00.0100.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.00.00.00.00.00.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod us-gaap:TitleOfIndividual, us-gaap:AwardType

srt:ExecutiveOfficer, ter:ServiceBasedRestrictedStockUnits


Share
Period End2021-07-042021-04-042019-12-312019-09-292018-12-31
Value0100000.0000
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod0.0100.00.00.00.0

ter:Employees, ter:ServiceBasedRestrictedStockUnits


Share
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292018-12-31
Value0300000.0000400000.0100000.000
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod0.0300.00.00.00.0400.00.00.00.0

ter:NonEmployees, ter:TotalShareholderReturnPerformanceBasedRestrictedStockUnits


Share
Period End2020-09-27
Value0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod0.0

Deferred Tax Assets Net

us-gaap:DeferredTaxAssetsNet

us-gaap:DeferredTaxAssetsNet


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value122978810613512513215117020267
Percentage of DeferredTaxAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Unrecognized Tax Benefits

us-gaap:UnrecognizedTaxBenefits

us-gaap:UnrecognizedTaxBenefits


Unrecognized
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value17214336383630211719121213
Percentage of UnrecognizedTaxBenefits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:UnrecognizedTaxBenefits us-gaap:IncomeTaxAuthority

us-gaap:StateAndLocalJurisdiction


Unrecognized
Period End2020-12-312019-12-312018-12-31
Value172143
Percentage of UnrecognizedTaxBenefits100.0100.1100.0

Deferred Tax Assets Valuation Allowance

us-gaap:DeferredTaxAssetsValuationAllowance

us-gaap:DeferredTaxAssetsValuationAllowance


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value84776963484341405551241
Percentage of DeferredTaxAssetsValuationAllowance100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ter:AntidilutionAdjustmentsOfConvertibleNoteHedges us-gaap:DebtInstrument

ter:AntidilutionAdjustmentsOfConvertibleNoteHedges

ter:ConvertibleNote


Antidilution
Period End2021-07-042021-04-042020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-07-012018-04-012017-12-312017-10-012017-07-022015-12-312015-10-042015-07-052015-04-052014-03-302013-12-312013-09-292013-06-302013-03-312012-09-302012-07-012012-04-012011-04-032010-12-31
Value-1.1131414140.00.00.0140.00.0140.114140.00.00.034340.0343434340.0343434
Percentage of AntidilutionAdjustmentsOfConvertibleNoteHedges100.0100.0100.0100.0100.00.00.00.0100.00.00.0100.0100.0100.0100.00.00.00.0100.0100.00.0100.0100.0100.0100.00.0100.0100.0100.0

ter:ConvertibleNotesHedgeAndWarrant


Antidilution
Period End2021-07-042021-04-042020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-07-012018-04-012015-12-312015-10-042015-07-052015-04-052014-03-302013-12-312013-09-292013-06-302013-03-312012-09-302012-07-012012-04-012011-04-032010-12-31
Value0.8131414140.00.00.0140.00.0140.00.00.034340.0343434340.0343434
Percentage of AntidilutionAdjustmentsOfConvertibleNoteHedges-72.7100.0100.0100.0100.00.00.00.0100.00.00.0100.00.00.00.0100.0100.00.0100.0100.0100.0100.00.0100.0100.0100.0

ter:OnePointTwoFivePercentConvertibleSeniorUnsecuredNotesDueDecemberFifteenTwoThousandTwentyThree


Antidilution
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292018-12-312018-07-012018-04-012017-12-312017-10-012016-12-12
Value-0.5130.00.00.0140.00.0140.10.014
Percentage of AntidilutionAdjustmentsOfConvertibleNoteHedges45.594.20.00.00.0100.00.00.0100.0100.00.00.0

ter:ContingentConsiderationFairValueAssumptionsExpectedVolatilityRate us-gaap:BusinessAcquisition, us-gaap:ValuationTechnique

ter:ContingentConsiderationFairValueAssumptionsExpectedVolatilityRate

ter:AutoguideLlc, ter:MonteCarloSimulationValuationModel


Contingent
Period End2020-09-272020-06-282020-03-29
Value17.3450.0150.14
Percentage of ContingentConsiderationFairValueAssumptionsExpectedVolatilityRate100.0100.0100.0

ter:MobileIndustrialRobotsAps, ter:MonteCarloSimulationValuationModel


Contingent
Period End2020-09-272020-06-282020-03-29
Value9.9-0.060.16
Percentage of ContingentConsiderationFairValueAssumptionsExpectedVolatilityRate57.1-400.0114.3

ter:ContingentConsiderationFairValueInputsDiscountRate us-gaap:BusinessAcquisition, us-gaap:ValuationTechnique

ter:ContingentConsiderationFairValueInputsDiscountRate

ter:AutoguideLlc, ter:MonteCarloSimulationValuationModel


Contingent
Period End2020-09-272020-06-282020-03-29
Value1.382-0.0260.044
Percentage of ContingentConsiderationFairValueInputsDiscountRate100.0100.0100.0

ter:MobileIndustrialRobotsAps, ter:MonteCarloSimulationValuationModel


Contingent
Period End2020-09-272020-06-282020-03-29
Value0.792-0.0140.022
Percentage of ContingentConsiderationFairValueInputsDiscountRate57.353.850.0

ter:ContractualInterestExpenseOnCoupon

ter:ContractualInterestExpenseOnCoupon


Contractual
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312010-10-032010-07-04
Value1072000.01239000.01437000.01438000.01438000.01438000.01437000.01438000.01438000.01438000.01437000.01438000.01438000.01438000.01437000.01422000.01438000.01438000.00001757000.02162000.02114000.02137000.02137000.02137000.02114000.02138000.02161000.02090000.02114000.02138000.02209000.02041000.02138000.02138000.0
Percentage of ContractualInterestExpenseOnCoupon100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ter:CostOfRevenuesProvisionForExcessAndObsoleteInventory us-gaap:StatementBusinessSegments

ter:CostOfRevenuesProvisionForExcessAndObsoleteInventory

ter:IndustrialAutomation


Cost
Period End2021-07-042021-04-042020-12-312019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-04-012017-10-01
Value0.0641.2210.2230.00.0920.00.4160.00.3230.20.13
Percentage of CostOfRevenuesProvisionForExcessAndObsoleteInventory100.0100.0100.00.0100.00.0100.00.0100.0100.0100.0

ter:SemiconductorTest


Cost
Period End2021-07-042021-04-042020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312010-10-03
Value0.1551.0791.1313.7993.026-4.0421.8672.2781.1740.9712.0711.6132.1660.920.7431.6241.3191.3862.3512.2343.6851.8711.6976.4090.5310.0674.4043.7136.2053.341.3780.2870.2139.1793.0855.9570.2120.2264.2021.54.4420.5253.5
Percentage of CostOfRevenuesProvisionForExcessAndObsoleteInventory242.288.40.00.00.00.02029.30.0282.20.0641.20.01083.00.0571.50.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

ter:SystemsTestGroup


Cost
Period End2020-12-312020-09-272020-06-282019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312010-10-032010-07-04
Value0.1360.6980.00.8710.3660.2950.4680.3630.2370.2560.320.3090.2510.4730.8850.1890.1210.2370.0990.467.7020.0630.1810.7630.440.7412.5550.4040.290.9191.2510.3781.7530.8890.4780.2110.2160.1850.2650.2270.276
Percentage of CostOfRevenuesProvisionForExcessAndObsoleteInventory61.00.00.00.0397.80.0112.50.073.40.0160.00.0193.10.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

ter:DividendsPerShare us-gaap:AwardType, us-gaap:MeasurementInputType

ter:DividendsPerShare

ter:TotalShareholderReturnPerformanceBasedRestrictedStockUnits, us-gaap:MeasurementInputExpectedDividendPayment


Dividends
Period End2021-07-042021-04-042020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-07-012018-04-012017-12-312017-10-01
Value00.400.40000.36000.3600
Percentage of DividendsPerShare0.0100.00.0100.00.00.00.0100.00.00.0100.00.00.0

us-gaap:EmployeeStockOption, us-gaap:MeasurementInputExpectedDividendPayment


Dividends
Period End2021-07-042021-04-042020-09-272020-06-282020-03-292019-09-292019-06-302019-03-31
Value00.4000.40072.1
Percentage of DividendsPerShare0.0100.00.00.0100.00.00.020027.8

ter:EffectiveIncomeTaxRateReconciliationEffectOfTaxCustsAndJobsActPercent

ter:EffectiveIncomeTaxRateReconciliationEffectOfTaxCustsAndJobsActPercent


Effective
Period End2021-07-042021-04-042020-09-272020-06-282020-03-292019-09-292019-06-302018-09-302018-07-01
Value-1.7-1.53.6-0.019-0.2-0.0280.008-0.014-0.014
Percentage of EffectiveIncomeTaxRateReconciliationEffectOfTaxCustsAndJobsActPercent100.0100.0100.0100.0100.0100.0100.0100.0100.0

ter:EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017TransitionTax

ter:EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017TransitionTax


Effective
Period End2020-09-272020-06-282019-12-312019-09-292019-06-302018-12-312018-07-01
Value-0.60-0.02-4.00.112-0.1050
Percentage of EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017TransitionTax100.00.0100.0100.0100.0100.00.0

ter:ExerciseOfConvertibleNotesHedgeCallOptions us-gaap:StatementEquityComponents

ter:ExerciseOfConvertibleNotesHedgeCallOptions

us-gaap:CommonStock


Exercise
Period End2021-07-042021-04-04
Value-367000.0-1222000.0
Percentage of ExerciseOfConvertibleNotesHedgeCallOptions100.0100.0

ter:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityForeignCurrencyExchangeRateImpact

ter:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityForeignCurrencyExchangeRateImpact


Fair
Period End2020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-01
Value-8497000.08497000.0-6000.0361000.0-446000.01008000.0-206000.0610000.01770000.0-796000.02566000.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityForeignCurrencyExchangeRateImpact100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ter:ForeignCurrencyTransactionGainUnrealized

ter:ForeignCurrencyTransactionGainUnrealized


Foreign
Period End2021-07-042021-04-042019-12-312019-09-29
Value2000000.01400000.01500000.0100000.0
Percentage of ForeignCurrencyTransactionGainUnrealized100.0100.0100.0100.0

ter:ForeignCurrencyTransactionlossUnrealized

ter:ForeignCurrencyTransactionlossUnrealized


Foreign
Period End2020-12-312020-09-272020-06-282020-03-292019-12-312019-09-29
Value003700000.06000000.0200000.0200000.0
Percentage of ForeignCurrencyTransactionlossUnrealized0.00.0100.0100.0100.0100.0

ter:GainLossOnConvertibleDebtConversion

ter:GainLossOnConvertibleDebtConversion


Gain
Period End2021-07-042021-04-04
Value-1175000.0-4069000.0
Percentage of GainLossOnConvertibleDebtConversion100.0100.0

ter:IncreaseDecreaseInUncertainTaxPosition

ter:IncreaseDecreaseInUncertainTaxPosition


Increase
Period End2021-07-042021-04-042020-09-27
Value200000.0-1500000.0-3600000.0
Percentage of IncreaseDecreaseInUncertainTaxPosition100.0100.0100.0

ter:PaymentsForConvertibleNoteHedgeNetFinancingActivities us-gaap:DebtInstrument

ter:PaymentsForConvertibleNoteHedgeNetFinancingActivities

ter:OnePointTwoFivePercentConvertibleSeniorUnsecuredNotesDueDecemberFifteenTwoThousandTwentyThree


Payments
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292016-12-12
Value0.0330.00.00.03333
Percentage of PaymentsForConvertibleNoteHedgeNetFinancingActivities0.0100.00.00.00.0100.0100.0

ter:ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingPercentageUponOneYearAnniversaryOfDateOfGrant us-gaap:TitleOfIndividual, us-gaap:AwardType

ter:ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingPercentageUponOneYearAnniversaryOfDateOfGrant

ter:Employees, us-gaap:RestrictedStockUnitsRSU


Share
Period End2021-07-042021-04-04
Value0100.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingPercentageUponOneYearAnniversaryOfDateOfGrant0.0100.0

ter:SharesOfStockIssuedDuringPeriodShareBasedCompensationNetOfSharesWithheldForTaxes us-gaap:StatementEquityComponents

ter:SharesOfStockIssuedDuringPeriodShareBasedCompensationNetOfSharesWithheldForTaxes

us-gaap:CommonStock


Shares
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-01
Value215000.0670000.080000.0237000.041000.0872000.022000.0377000.099000.01287000.029000.0332000.054000.01199000.0
Percentage of SharesOfStockIssuedDuringPeriodShareBasedCompensationNetOfSharesWithheldForTaxes100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ter:StockIssuedDuringPeriodValueShareBasedCompensationNetOfSharesWithheldForTaxes

ter:StockIssuedDuringPeriodValueShareBasedCompensationNetOfSharesWithheldForTaxes


Stock
Period End2021-07-042021-04-042020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-01
Value14-13.98713-0.446-9.936-4.109140.692-0.049-1.88110-0.107-7.979
Percentage of StockIssuedDuringPeriodValueShareBasedCompensationNetOfSharesWithheldForTaxes100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ter:StockIssuedDuringPeriodValueShareBasedCompensationNetOfSharesWithheldForTaxes us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stock
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-01
Value14-14.0711.67713-0.451-10.045-4.112140.679-0.21-1.88510-0.114-8.129
Percentage of StockIssuedDuringPeriodValueShareBasedCompensationNetOfSharesWithheldForTaxes99.8100.60.099.8101.1101.1100.199.798.1428.6100.299.6106.5101.9

us-gaap:CommonStock


Stock
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-01
Value0.0270.0840.010.030.0050.1090.0030.0460.0130.1610.0040.0420.0070.15
Percentage of StockIssuedDuringPeriodValueShareBasedCompensationNetOfSharesWithheldForTaxes0.2-0.60.00.2-1.1-1.1-0.10.31.9-328.6-0.20.4-6.5-1.9

ter:StockRepurchasedDuringPeriodValueExcludingUnsettledShares us-gaap:ShareRepurchaseProgram

ter:StockRepurchasedDuringPeriodValueExcludingUnsettledShares

ter:ShareRepurchaseProgram


Stock
Period End2021-07-042021-04-042020-09-272020-06-282020-03-292019-09-292019-06-302019-03-31
Value151450.09.57912190156
Percentage of StockRepurchasedDuringPeriodValueExcludingUnsettledShares100.0100.00.0100.0100.0100.0100.0100.0

us-gaap:AdjustmentForAmortization

us-gaap:AdjustmentForAmortization


Adjustment
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312010-10-032010-07-042010-04-04
Value9.5219.822101012131211121212109.2049.649.90111118.9529.0951620202016151719192323252221212221212412121211111111
Percentage of AdjustmentForAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt

us-gaap:AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt


Adjustments
Period End2021-07-042021-04-04
Value-20.1532.554
Percentage of AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt100.0100.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Adjustments
Period End2021-07-042021-04-04
Value-20.1532.554
Percentage of AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt100.0100.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebtSubsequentAdjustments

us-gaap:AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebtSubsequentAdjustments


Adjustments
Period End2021-07-042021-04-04
Value-46337000.0-158880000.0
Percentage of AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebtSubsequentAdjustments100.0100.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebtSubsequentAdjustments us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Adjustments
Period End2021-07-042021-04-04
Value-46291000.0-158720000.0
Percentage of AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebtSubsequentAdjustments99.999.9

us-gaap:CommonStock


Adjustments
Period End2021-07-042021-04-04
Value-46000.0-153000.0
Percentage of AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebtSubsequentAdjustments0.10.1

us-gaap:AmortizationOfDebtDiscountPremium

us-gaap:AmortizationOfDebtDiscountPremium


Amortization
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312010-10-032010-07-04
Value3.5113.8363.9363.8873.8393.7923.7453.6993.6533.6083.5643.523.4773.4343.3923.353.3083.2680.00.00.04.4934.3624.2214.0873.9573.8313.713.5923.4793.3693.2633.163.0613.0562.7832.783
Percentage of AmortizationOfDebtDiscountPremium100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AvailableForSaleSecuritiesGrossRealizedGains

us-gaap:AvailableForSaleSecuritiesGrossRealizedGains


Available
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-01
Value900000.01200000.0500000.01100000.01600000.01400000.0600000.0500000.0100000.0100000.03400000.0200000.0100000.0300000.0400000.0200000.0200000.0300000.0400000.0700000.0300000.0200000.0300000.0400000.0400000.0500000.0723000.0986000.0400000.0300000.0500000.0200000.0100000.0300000.0500000.0300000.0300000.0300000.0
Percentage of AvailableForSaleSecuritiesGrossRealizedGains100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AvailableForSaleSecuritiesGrossRealizedLosses

us-gaap:AvailableForSaleSecuritiesGrossRealizedLosses


Available
Period End2020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-06-302013-03-31
Value0100000.0100000.0100000.00100000.0100000.0100000.0001500000.000100000.0200000.0100000.0100000.0200000.0200000.0200000.0100000.0100000.00000000
Percentage of AvailableForSaleSecuritiesGrossRealizedLosses0.0100.0100.0100.00.0100.0100.0100.00.00.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.00.00.00.0

us-gaap:BusinessCombinationAcquisitionRelatedCosts

us-gaap:BusinessCombinationAcquisitionRelatedCosts


Business
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-01
Value500000.03100000.01400000.0200000.0500000.0500000.0500000.01300000.0500000.0800000.02500000.02500000.0
Percentage of BusinessCombinationAcquisitionRelatedCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BusinessCombinationAcquisitionRelatedCosts us-gaap:BusinessAcquisition

ter:AutoguideLlc


Business
Period End2020-12-31
Value900000.0
Percentage of BusinessCombinationAcquisitionRelatedCosts0.0

us-gaap:BusinessCombinationAcquisitionRelatedCosts us-gaap:IncomeStatementLocation, us-gaap:StatementBusinessSegments

us-gaap:OtherOperatingIncomeExpense, ter:CorporateAndEliminations


Business
Period End2021-07-042021-04-042020-06-282020-03-292019-12-312019-09-292019-03-312018-12-312018-07-012018-04-01
Value0-513000.02974000.0741000.0837000.0816000.00104000.02544000.0774000.0
Percentage of BusinessCombinationAcquisitionRelatedCosts0.00.00.00.0418.5163.20.020.8101.831.0

us-gaap:BusinessCombinationAcquisitionRelatedCosts us-gaap:StatementBusinessSegments

ter:SemiconductorTest


Business
Period End2021-04-042020-12-312020-09-272020-06-28
Value200000.0-900000.01100000.03100000.0
Percentage of BusinessCombinationAcquisitionRelatedCosts0.00.00.00.0

us-gaap:BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1

us-gaap:BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1


Business
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042014-12-312014-09-28
Value0.0-7.227-36.387-6.12329-10.02-2.7977.8112.97100.83.5-4.9685.973-0.2861.4990.6345.4458.01.31.1735.089-1.00.0-0.63
Percentage of BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability10.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0

us-gaap:BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1 us-gaap:BusinessAcquisition

ter:AutoguideLlc


Business
Period End2020-12-312020-06-302020-06-282020-03-292019-12-31
Value150.6157.13.0
Percentage of BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1-42.00.053.7-70.9-107.3

ter:MIR


Business
Period End2020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-31
Value0.0-0.10.72.9-26.030303.0
Percentage of BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1-0.01.62.4-28.9929.6394.9263.2101.0

ter:UniversalRobots


Business
Period End2020-09-302020-06-302020-03-312019-09-302019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-31
Value272910.07.83.8113.07.4-0.8-3.53.56.0-0.31.50.65.48.00.81.25.339
Percentage of BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability10.00.00.00.048.7100.0101.072.4-100.0-100.0-70.5100.5104.9100.194.699.2100.061.5102.3104.9

us-gaap:BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1 us-gaap:BusinessAcquisition, us-gaap:IncomeStatementLocation, us-gaap:StatementBusinessSegments

ter:Autoguide, us-gaap:OtherOperatingIncomeExpense, ter:CorporateAndEliminations


Business
Period End2020-09-272020-06-282019-06-30
Value-27.206290.0
Percentage of BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1444.3102.30.0

ter:UniversalRobots, us-gaap:OtherOperatingIncomeExpense, ter:CorporateAndEliminations


Business
Period End2021-07-042021-04-042020-09-272020-06-282020-03-292019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-03
Value0.0-7.227-1.0862.974-7.1420.8160.00.0-7.443-0.768-3.5-4.9685.973-0.2861.4990.6345.4447.9740.7551.173
Percentage of BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability10.0100.017.710.271.310.50.00.0-72.8-96.0-100.0100.0100.0100.0100.0100.0100.099.758.1100.0

us-gaap:BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1 us-gaap:BusinessAcquisition, us-gaap:LossContingenciesByNatureOfContingency

ter:AutoguideLlc, ter:DisputeInRespectOfContingentConsideration


Business
Period End2020-12-312020-09-27
Value1527
Percentage of BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1-42.0-444.2

us-gaap:BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1 us-gaap:ProductOrService, us-gaap:BusinessAcquisition

ter:TerCorporateAndEliminations, ter:MobileIndustrialRobotsAps


Business
Period End2020-09-272020-06-28
Value7.1-0.6
Percentage of BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1-116.0-2.1

ter:TerCorporateAndEliminations, ter:UniversalRobots


Business
Period End2021-04-042020-12-312020-09-272020-06-28
Value7.2152729
Percentage of BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1-99.6-42.0-444.2102.2

us-gaap:BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1 us-gaap:StatementBusinessSegments

ter:SemiconductorTest


Business
Period End2021-04-042020-03-292019-09-292019-06-302019-03-31
Value10.010.07.8-11.73.0
Percentage of BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1-138.4-99.8100.0-100.0101.0

us-gaap:CapitalExpendituresIncurredButNotYetPaid

us-gaap:CapitalExpendituresIncurredButNotYetPaid


Capital
Period End2020-12-312020-09-272019-12-312019-09-29
Value547000.0-3162000.01146000.0-1146000.0
Percentage of CapitalExpendituresIncurredButNotYetPaid100.0100.0100.0100.0

us-gaap:CommonStockDividendsPerShareCashPaid

us-gaap:CommonStockDividendsPerShareCashPaid


Common
Period End2021-07-042021-04-042020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-06-302018-04-01
Value0.10.10.10.100.090.090.0900.090.090.09
Percentage of CommonStockDividendsPerShareCashPaid100.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.0

us-gaap:CommonStockDividendsPerShareDeclared

us-gaap:CommonStockDividendsPerShareDeclared


Common
Period End2020-12-312020-09-272020-06-282020-03-292019-12-312019-09-302019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-31
Value0.10.10.10.10.090.090.090.090.090.090.090.090.090.070.070.070.070.060.060.060.060.060.060.060.060.060.060.0600000
Percentage of CommonStockDividendsPerShareDeclared100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.00.0

us-gaap:ContractWithCustomerLiabilityRevenueRecognized

us-gaap:ContractWithCustomerLiabilityRevenueRecognized


Contract
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-01
Value22271217213918141319-1.0242421
Percentage of ContractWithCustomerLiabilityRevenueRecognized100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtConversionConvertedInstrumentAmount1 us-gaap:DebtInstrument, us-gaap:SubsequentEventType

us-gaap:DebtConversionConvertedInstrumentAmount1

ter:OnePointTwoFivePercentConvertibleSeniorUnsecuredNotesDueDecemberFifteenTwoThousandTwentyThree, us-gaap:SubsequentEvent


Debt
Period End2021-08-052021-05-072021-02-22
Value3026651
Percentage of DebtConversionConvertedInstrumentAmount1100.0100.0100.0

us-gaap:DebtInstrumentConvertibleBeneficialConversionFeature us-gaap:DebtInstrument

us-gaap:DebtInstrumentConvertibleBeneficialConversionFeature

ter:OnePointTwoFivePercentConvertibleSeniorUnsecuredNotesDueDecemberFifteenTwoThousandTwentyThree


Debt
Period End2021-07-042021-04-042020-12-31
Value-66.41668615
Percentage of DebtInstrumentConvertibleBeneficialConversionFeature100.0100.0100.0

us-gaap:DebtInstrumentConvertibleIfConvertedValueInExcessOfPrincipal us-gaap:BalanceSheetLocation

us-gaap:DebtInstrumentConvertibleIfConvertedValueInExcessOfPrincipal

ter:ConvertibleCommonShares


Debt
Period End2021-06-30
Value15
Percentage of DebtInstrumentConvertibleIfConvertedValueInExcessOfPrincipal100.0

us-gaap:DebtInstrumentConvertibleIfConvertedValueInExcessOfPrincipal us-gaap:BalanceSheetLocation, us-gaap:SubsequentEventType

ter:ConvertibleCommonShares, us-gaap:SubsequentEvent


Debt
Period End2021-09-30
Value235
Percentage of DebtInstrumentConvertibleIfConvertedValueInExcessOfPrincipal0.0

us-gaap:DeferredRevenueRevenueRecognized1

us-gaap:DeferredRevenueRevenueRecognized1


Deferred
Period End2021-07-042020-09-272020-06-282019-09-292019-06-302018-09-302018-07-01
Value7.6165031402424
Percentage of DeferredRevenueRevenueRecognized1100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanActuarialGainLoss

us-gaap:DefinedBenefitPlanActuarialGainLoss


Defined
Period End2020-12-312020-09-302020-06-302019-12-312018-12-312018-09-302018-07-012017-12-312017-07-022016-12-312016-10-022016-07-032016-04-032015-12-312014-12-312013-12-312013-09-292012-12-312012-09-302011-12-31
Value-7.7-2.7-0.1-7.73.5-0.30.13.82.52.0-0.70.71.2-17.732-46.5648.9810.0-18.329-1.937-9.361
Percentage of DefinedBenefitPlanActuarialGainLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0

us-gaap:DefinedBenefitPlanActuarialGainLossImmediateRecognitionAsComponentInNetPeriodicBenefitCostCredit ter:PensionPlanOne, us-gaap:RetirementPlanName

us-gaap:DefinedBenefitPlanActuarialGainLossImmediateRecognitionAsComponentInNetPeriodicBenefitCostCredit

ter:AnnuityPlanForParticipantsInTheUsQualifiedPensionPlan, ter:UnitedStatesPlans


Defined
Period End2021-07-042021-04-042020-09-27
Value900000.0800000.02200000.0
Percentage of DefinedBenefitPlanActuarialGainLossImmediateRecognitionAsComponentInNetPeriodicBenefitCostCredit100.0100.0100.0

us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses

us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses


Defined
Period End2020-12-312020-09-272019-12-312019-09-292018-12-312017-12-312017-10-012016-12-312016-10-022016-07-032016-04-03
Value-7695000.0-2688000.0-7728000.003512000.04120000.002003000.0-662000.0669000.01193000.0
Percentage of DefinedBenefitPlanAmortizationOfGainsLosses100.0100.0100.00.0100.0100.00.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses us-gaap:RetirementPlanSponsorLocation

country:US


Defined
Period End2021-07-042020-12-312020-09-272020-06-282019-12-312019-09-292019-06-302018-12-312018-07-012017-12-312017-10-012017-07-02
Value400000.0-4045000.0-2238000.0-180000.0-2721000.00-252000.04240000.0189000.03980000.002732000.0
Percentage of DefinedBenefitPlanAmortizationOfGainsLosses0.052.683.30.035.20.00.0120.70.096.60.00.0

us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses us-gaap:RetirementPlanType

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2021-07-042020-12-312020-09-272020-06-282019-12-312019-09-292019-06-302018-12-312018-07-012017-12-312017-10-012017-07-02
Value228000.0-700000.00279000.0-521000.00-196000.015000.0-40000.0-413000.0015000.0
Percentage of DefinedBenefitPlanAmortizationOfGainsLosses0.09.1-0.00.06.70.00.00.40.0-10.00.00.0

us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-01
Value-2000.0-2000.0-2000.0-2000.0-2000.0-2000.0-48000.0-48000.0-48000.0-48000.0-93000.0-93000.0-93000.0-93000.0
Percentage of DefinedBenefitPlanAmortizationOfPriorServiceCostCredit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanBenefitObligationIncreaseDecreaseForRemeasurementDueToSettlement ter:PensionPlanOne, us-gaap:RetirementPlanName

us-gaap:DefinedBenefitPlanBenefitObligationIncreaseDecreaseForRemeasurementDueToSettlement

ter:AnnuityPlanForParticipantsInTheUsQualifiedPensionPlan, ter:UnitedStatesPlans


Defined
Period End2021-07-042021-04-042020-09-27
Value200000.0300000.0500000.0
Percentage of DefinedBenefitPlanBenefitObligationIncreaseDecreaseForRemeasurementDueToSettlement100.0100.0100.0

us-gaap:DefinedBenefitPlanContributionsByEmployer us-gaap:RetirementPlanName

us-gaap:DefinedBenefitPlanContributionsByEmployer

ter:UnitedStatesPlans


Defined
Period End2020-09-272020-06-282020-03-292019-09-292019-06-302019-03-31
Value0.80.70.70.80.60.7
Percentage of DefinedBenefitPlanContributionsByEmployer100.0100.0100.0100.0100.0100.0

ter:UnitedStatesSupplementalExecutiveDefinedBenefitPensionPlan


Defined
Period End2020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-07-012018-04-012017-12-312017-10-012016-12-31
Value2.40.30.20.20.30.20.20.2-1.10.70.60.70.60.7
Percentage of DefinedBenefitPlanContributionsByEmployer0.037.528.628.60.025.033.328.60.00.00.00.00.00.0

us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets us-gaap:RetirementPlanSponsorLocation

us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets

country:US


Defined
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-02
Value0.9360.9361.2061.171.2321.2331.5111.511.511.5111.5651.5512.553.3693.0023.0023.004
Percentage of DefinedBenefitPlanExpectedReturnOnPlanAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ForeignPlan


Defined
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-03
Value0.0170.0160.0180.0160.0150.0150.0080.0070.0070.0070.0040.0050.0050.0050.1460.0060.0060.0060.4260.0060.005
Percentage of DefinedBenefitPlanExpectedReturnOnPlanAssets1.81.71.51.41.21.20.50.50.50.50.30.30.20.14.90.20.20.00.00.00.0

us-gaap:DefinedBenefitPlanInterestCost us-gaap:RetirementPlanSponsorLocation

us-gaap:DefinedBenefitPlanInterestCost

country:US


Defined
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-02
Value1.0961.11.2651.461.5231.5221.7971.7971.7991.7951.7521.752.432.9973.2883.2883.264
Percentage of DefinedBenefitPlanInterestCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ForeignPlan


Defined
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-03
Value0.0880.0870.1470.1230.1190.1150.1860.1680.1760.1730.1550.1770.1750.1860.3250.1860.1790.1630.5710.2090.199
Percentage of DefinedBenefitPlanInterestCost8.07.911.68.47.87.610.49.39.89.68.810.17.26.29.95.75.50.00.00.00.0

us-gaap:DefinedBenefitPlanInterestCost us-gaap:RetirementPlanType

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-03
Value0.0410.0440.060.060.0580.0620.0870.0870.0880.0850.0490.0490.0480.050.050.050.050.050.0550.0540.053
Percentage of DefinedBenefitPlanInterestCost3.74.04.74.13.84.14.84.84.94.72.82.82.01.71.51.51.50.00.00.00.0

us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost us-gaap:RetirementPlanSponsorLocation

us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost

country:US


Defined
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-02
Value0.2120.6174.5953.3950.9040.7223.4090.6890.940.689-3.4991.0180.3280.213-3.1170.864-1.894
Percentage of DefinedBenefitPlanNetPeriodicBenefitCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ForeignPlan


Defined
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-03
Value0.3160.3143.3370.3230.3120.3014.8640.3440.3610.3541.0710.3750.370.394-0.1620.3950.6220.3420.6291.0730.393
Percentage of DefinedBenefitPlanNetPeriodicBenefitCost149.150.972.69.534.541.7142.749.938.451.4-30.636.8112.8185.05.245.7-32.80.00.00.00.0

us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost us-gaap:RetirementPlanType

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-03
Value-0.1720.0580.7720.072-0.2060.0710.570.0490.2470.0460.240.5671.1971.5920.939-0.066-0.082-0.064-0.068-0.088-0.107
Percentage of DefinedBenefitPlanNetPeriodicBenefitCost-81.19.416.82.1-22.89.816.77.126.36.7-6.955.7364.9747.4-30.1-7.64.30.00.00.00.0

us-gaap:DefinedBenefitPlanRecognizedNetGainLossDueToCurtailments us-gaap:RetirementPlanSponsorLocation

us-gaap:DefinedBenefitPlanRecognizedNetGainLossDueToCurtailments

country:US


Defined
Period End2020-12-312020-09-272018-12-312018-09-302018-07-01
Value-1000.0-450000.00-267000.0-78000.0
Percentage of DefinedBenefitPlanRecognizedNetGainLossDueToCurtailments100.0100.00.0100.0100.0

us-gaap:DefinedBenefitPlanServiceCost us-gaap:RetirementPlanSponsorLocation

us-gaap:DefinedBenefitPlanServiceCost

country:US


Defined
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-02
Value452000.0453000.0490000.0417000.0433000.0433000.0402000.0402000.0399000.0405000.0539000.0538000.0545000.0571000.0560000.0560000.0560000.0
Percentage of DefinedBenefitPlanServiceCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ForeignPlan


Defined
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-03
Value245000.0243000.0259000.0216000.0208000.0201000.0201000.0183000.0192000.0188000.0177000.0203000.0200000.0213000.0212000.0215000.0206000.0185000.0147000.0208000.0199000.0
Percentage of DefinedBenefitPlanServiceCost54.253.652.951.848.046.450.045.548.146.432.837.736.737.337.938.436.80.00.00.00.0

us-gaap:DefinedBenefitPlanServiceCost us-gaap:RetirementPlanType

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-03
Value17000.016000.014000.014000.017000.011000.010000.010000.011000.09000.010000.010000.010000.09000.09000.08000.07000.010000.09000.09000.09000.0
Percentage of DefinedBenefitPlanServiceCost3.83.52.93.43.92.52.52.52.82.21.91.91.81.61.61.41.20.00.00.00.0

us-gaap:Depreciation

us-gaap:Depreciation


Depreciation
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312010-10-032010-07-042010-04-04
Value212322191918191717161716161616161616161516151616192019181515141314151413121212121314131313
Percentage of Depreciation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DividendsCash

us-gaap:DividendsCash


Dividends
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-01
Value1616161616161515151516161717
Percentage of DividendsCash100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DividendsCash us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Dividends
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-01
Value1616161616161515151516161717
Percentage of DividendsCash100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EffectOfExchangeRateOnCashAndCashEquivalents

us-gaap:EffectOfExchangeRateOnCashAndCashEquivalents


Effect
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-07-012018-04-012017-12-312017-10-01
Value-1372000.0883000.0616000.0-349000.0-1496000.0571000.0-169000.0119000.0-190000.0-329000.0-222000.0-1289000.01478000.0678000.01052000.0
Percentage of EffectOfExchangeRateOnCashAndCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate

us-gaap:EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate


Effective
Period End2021-07-042021-04-042020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-03-302013-12-312013-09-292013-06-302012-12-312012-09-302011-12-312011-10-02
Value21.021.021.00.210.2100.210.210.2100.210.210.2100.350.350.3500.350.350.3500.350.350.350.3500.350.3500.3500.35
Percentage of EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate100.0100.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.0100.00.0100.0100.00.0100.00.0100.0

us-gaap:EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential

us-gaap:EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential


Effective
Period End2021-07-042021-04-042020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-01
Value-4.3-4.7-6.9-0.046-0.0570.009-0.051-0.049-0.0310.017-0.044-0.034
Percentage of EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EffectiveIncomeTaxRateReconciliationOtherAdjustments

us-gaap:EffectiveIncomeTaxRateReconciliationOtherAdjustments


Effective
Period End2021-07-042021-04-042020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-01
Value0.91.00.500.0130.004-0.0010.0080.007-0.0110.0170.018
Percentage of EffectiveIncomeTaxRateReconciliationOtherAdjustments100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitPercent

us-gaap:EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitPercent


Effective
Period End2021-04-042020-09-272020-06-282020-03-292019-09-292019-06-302019-03-312018-09-302018-07-01
Value-6.2-0.4-0.001-0.041-0.007-0.005-0.041-0.001-0.001
Percentage of EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitPercent100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EffectiveIncomeTaxRateReconciliationTaxContingencies

us-gaap:EffectiveIncomeTaxRateReconciliationTaxContingencies


Effective
Period End2021-07-042020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-09-302018-07-01
Value-0.2-0.50.00100.0260.1-0.001-0.276-0.0010
Percentage of EffectiveIncomeTaxRateReconciliationTaxContingencies100.0100.0100.00.0100.0100.0100.0100.0100.00.0

us-gaap:EffectiveIncomeTaxRateReconciliationTaxCredits

us-gaap:EffectiveIncomeTaxRateReconciliationTaxCredits


Effective
Period End2021-07-042021-04-042020-09-272020-06-282020-03-292019-09-292019-06-302019-03-312018-09-302018-07-01
Value1.21.31.10.0140.0190.0180.0250.030.0190.021
Percentage of EffectiveIncomeTaxRateReconciliationTaxCredits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EquitySecuritiesFvNiUnrealizedGainLoss

us-gaap:EquitySecuritiesFvNiUnrealizedGainLoss


Equity
Period End2020-09-272019-09-292019-06-302018-09-302018-07-01
Value2000000.0100000.0900000.01000000.0400000.0
Percentage of EquitySecuritiesFvNiUnrealizedGainLoss100.0100.0100.0100.0100.0

us-gaap:ExtendedProductWarrantyAccrualPayments

us-gaap:ExtendedProductWarrantyAccrualPayments


Extended
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312010-10-032010-07-04
Value6.6735.5385.7445.1494.7754.7745.5694.4454.0026.04.8765.5865.324.9875.4415.5216.0348.8256.0076.427.297.2116.8926.2526.2766.85.4986.4515.8573.3214.3314.122.4791.8591.8222.0072.108-2.162-3.383-2.194-1.423-1.041-0.759-0.8-0.408
Percentage of ExtendedProductWarrantyAccrualPayments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ExtendedProductWarrantyAccrualWarrantiesIssued

us-gaap:ExtendedProductWarrantyAccrualWarrantiesIssued


Extended
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312010-10-032010-07-04
Value167.5178.9713117.66.3095.6665.4765.824.6817.2326.7015.1393.3872.636106.1254.4097.0488.8986.8275.731108.1724.2045.3019.896112.3612.45.5868.7343.4711.3298.7339.9352.3473.5361.3241.8611.9392.2882.1931.581
Percentage of ExtendedProductWarrantyAccrualWarrantiesIssued100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings


Fair
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-10-022016-07-032016-04-032015-10-042015-07-052015-04-052014-09-28
Value0.0-7.227-15.304-27.20629-10.0235-7.759-11.6722.9710-0.768-3.5-4.9685.973-0.2861.4990.6347.9731.3051.173-1.0-1.60.0-0.63
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings us-gaap:BusinessAcquisition

ter:AutoguideLlc


Fair
Period End2021-04-04
Value7.2
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings-99.6

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements


Fair
Period End2020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-04-052014-06-292014-03-302013-06-302013-03-312012-09-302012-04-01
Value8.497-8.4970.08.8520.01.0080.0340.00.0240.00.00.01.050.00.00.0150.00.00.00.0750.313-38.149-5.824
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements100.0100.00.0100.00.0100.00.0100.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.0100.0100.0100.0

us-gaap:FairValueOfAssetsAcquired

us-gaap:FairValueOfAssetsAcquired


Fair
Period End2021-07-042021-04-042020-06-282020-03-29
Value663000.03840000.0924000.05357000.0
Percentage of FairValueOfAssetsAcquired100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsForeignCurrencyTranslationGainLoss

us-gaap:FiniteLivedIntangibleAssetsForeignCurrencyTranslationGainLoss


Finite
Period End2021-07-042021-04-042020-12-312020-09-272019-12-312019-09-292019-06-302019-03-312018-12-312018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-02
Value674000.0-3172000.03485000.02327000.0-15731000.03274000.0-1086000.06195000.03922000.07621000.0-4379000.0-766000.0-2154000.0-3770000.04485000.05966000.0-576000.0
Percentage of FiniteLivedIntangibleAssetsForeignCurrencyTranslationGainLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsForeignCurrencyTranslationGainLoss us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:CustomerRelationships


Finite
Period End2021-07-042021-04-042020-12-312020-09-272019-12-312019-09-292019-06-302019-03-312018-12-312018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-02
Value41000.0150000.0347000.0253000.0-1017000.0277000.0-123000.0408000.0257000.0458000.0-340000.0-60000.0-166000.0-293000.0348000.0463000.0-44000.0
Percentage of FiniteLivedIntangibleAssetsForeignCurrencyTranslationGainLoss6.1-4.710.010.96.58.511.36.66.66.07.87.87.77.87.87.87.6

us-gaap:DevelopedTechnologyRights


Finite
Period End2021-07-042021-04-042020-12-312020-09-272019-12-312019-09-292019-06-302019-03-312018-12-312018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-02
Value419000.0-3198000.02196000.01289000.0-12170000.02426000.0-777000.04812000.02962000.05901000.0-3214000.0-561000.0-1581000.0-2768000.03292000.04379000.0-424000.0
Percentage of FiniteLivedIntangibleAssetsForeignCurrencyTranslationGainLoss62.2100.863.055.477.474.171.577.775.577.473.473.273.473.473.473.473.6

us-gaap:TrademarksAndTradeNames


Finite
Period End2021-07-042021-04-042020-12-312020-09-272019-12-312019-09-292019-06-302019-03-312018-12-312018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-02
Value214000.0-124000.0942000.0785000.0-2544000.0571000.0-184000.0973000.0703000.01262000.0-825000.0-145000.0-407000.0-709000.0845000.01124000.0-108000.0
Percentage of FiniteLivedIntangibleAssetsForeignCurrencyTranslationGainLoss31.83.927.033.716.217.416.915.717.916.618.818.918.918.818.818.818.8

us-gaap:ForeignCurrencyTransactionGainLossUnrealized

us-gaap:ForeignCurrencyTransactionGainLossUnrealized


Foreign
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-01
Value0.10.2-3.0-1.20.42.0-1.81.51.33.21.23.71.90.6-0.6-1.4-2.41.5-4.21.96.93.40.20.1-2.14.3-1.8-0.40.70.6-1.9-0.4-1.8-2.8-0.71.2-4.6
Percentage of ForeignCurrencyTransactionGainLossUnrealized100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ForeignCurrencyTransactionGainLossUnrealized us-gaap:DerivativeInstrumentRisk

us-gaap:ForeignExchangeContract


Foreign
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-30
Value50156-111.1-13.5-7.1132-114.6-28.4-5.5148-0.30.0-0.50.30.3-0.20.00.1-0.10.00.5-0.3-0.50.2
Percentage of ForeignCurrencyTransactionGainLossUnrealized50100.078400.03703.31125.0-1775.06605.06366.7-1893.3-423.14650.012.50.011.915.84.3-5.90.0100.04.80.0-27.875.0-71.433.3

us-gaap:GainLossOnForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments us-gaap:IncomeStatementLocation

us-gaap:GainLossOnForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments

us-gaap:OtherNonoperatingIncomeExpense


Gain
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-30
Value-1.531-2.1180.4150.551-0.47-4.0111.912-3.699-0.239-3.934-4.7550.899-1.8261.5750.381-0.939-1.5861.011-2.4690.9416.9013.2980.4920.677-1.5473.4251.8690.2371.1220.747
Percentage of GainLossOnForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GainLossOnSaleOfInvestments

us-gaap:GainLossOnSaleOfInvestments


Gain
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-04-01
Value2159000.02491000.04383000.03046000.05126000.0-4657000.01875000.0417000.0913000.02828000.0-1241000.0
Percentage of GainLossOnSaleOfInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GoodwillForeignCurrencyTranslationGainLoss

us-gaap:GoodwillForeignCurrencyTranslationGainLoss


Goodwill
Period End2021-07-042021-04-042018-12-312018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-02
Value-3.996168.140518-21.5628.0352.7347.062126.722-15.2461.379
Percentage of GoodwillForeignCurrencyTranslationGainLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GoodwillForeignCurrencyTranslationGainLoss us-gaap:StatementBusinessSegments

ter:IndustrialAutomation


Goodwill
Period End2021-07-042021-04-042018-12-312018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-02
Value-3.965168.140506-21.5628.0352.7347.062126.722-15.2461.379
Percentage of GoodwillForeignCurrencyTranslationGainLoss99.299.4100.0100.0100.0100.0100.0100.0100.0100.0100.0

ter:SemiconductorTest


Goodwill
Period End2021-07-042021-04-04
Value-0.0310.102
Percentage of GoodwillForeignCurrencyTranslationGainLoss0.80.6

us-gaap:IncomeTaxExaminationPenaltiesAndInterestExpense

us-gaap:IncomeTaxExaminationPenaltiesAndInterestExpense


Income
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-05
Value100000.0100000.0200000.0-300000.0200000.0100000.0900000.0100000.0-200000.0300000.0070000.030000.000200000.0-100000.0-200000.000300000.0-100000.0-200000.0-100000.0600000.0
Percentage of IncomeTaxExaminationPenaltiesAndInterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.00.00.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0

us-gaap:IncomeTaxHolidayIncomeTaxBenefitsPerShare

us-gaap:IncomeTaxHolidayIncomeTaxBenefitsPerShare


Income
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042014-12-312014-09-28
Value0.050.030.020.060.040.040.010.030.030.010.010.010.010.020.030.050.02-0.04-0.030.140.0100.020.010.02
Percentage of IncomeTaxHolidayIncomeTaxBenefitsPerShare100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0

us-gaap:IncomeTaxReconciliationTaxHolidays

us-gaap:IncomeTaxReconciliationTaxHolidays


Income
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-28
Value9.76.25.0116.57.13.15.04.92.13.01.83.04.35.4104.7-8.2-5.5282.61.63.75.11.10.96.2
Percentage of IncomeTaxReconciliationTaxHolidays100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInAccountsPayableAndOtherOperatingLiabilities

us-gaap:IncreaseDecreaseInAccountsPayableAndOtherOperatingLiabilities


Increase
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-07-012018-04-01
Value97-10.571-8.39-32.021148-35.323283538-53.323-2.43138-46.706
Percentage of IncreaseDecreaseInAccountsPayableAndOtherOperatingLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInContractWithCustomerLiability

us-gaap:IncreaseDecreaseInContractWithCustomerLiability


Increase
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-07-012018-04-01
Value7.2377.9523.3857.93429-0.91311119.3716.4553.5560.8749.644
Percentage of IncreaseDecreaseInContractWithCustomerLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInIncomeTaxes

us-gaap:IncreaseDecreaseInIncomeTaxes


Increase
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-05
Value-7.5694.9411.109-13.782221517-16.2517.831-22.804-47.277-14.202-12.1061571.4450.07514144.2210.058-0.052-30.8332.416184.662
Percentage of IncreaseDecreaseInIncomeTaxes100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInPensionAndPostretirementObligations

us-gaap:IncreaseDecreaseInPensionAndPostretirementObligations


Increase
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312010-10-032010-07-042010-04-04
Value-814000.0-1925000.0-1498000.0-1383000.0-1239000.0-1262000.0-1311000.0-1361000.0-1204000.0-1210000.0-1090000.0-1153000.0-1020000.0-1044000.0-2875000.0-1036000.0-947000.0-173000.0-3573000.0-1048000.0-1250000.0-9097000.0-999000.0-980000.0-1019000.0-30635000.0-893000.0-963000.0-1425000.0-1971000.0-1058000.0-1448000.0-1063000.0-1099000.0-1129000.0-1489000.0-1061000.0-5458000.0-1152000.0-4065000.0-1176000.0-1603000.0-26172000.0-18018000.0-6659000.0
Percentage of IncreaseDecreaseInPensionAndPostretirementObligations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets


Increase
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312010-10-03
Value318623-8.7289.859397.666-0.949-1.5811829-2.320.6795.108-2.937-3.321-1.1048.822-2.251-3.142-1.8859.0473.2058.0822.266-7.42914
Percentage of IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncrementalCommonSharesAttributableToCallOptionsAndWarrants

us-gaap:IncrementalCommonSharesAttributableToCallOptionsAndWarrants


Incremental
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302018-12-312018-09-302014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312010-10-032010-07-04
Value109.4290.6257.7755.8245.4920.9123.581.778-0.1610.108-4.1828.88520200.053181818-0.041161718-0.5131317180.8748.50611
Percentage of IncrementalCommonSharesAttributableToCallOptionsAndWarrants100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncrementalCommonSharesAttributableToConversionOfDebtSecurities

us-gaap:IncrementalCommonSharesAttributableToConversionOfDebtSecurities


Incremental
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312010-10-032010-07-04
Value9.578100.4999.1567.5997.3330.7925.84.3642.186-0.6073.0252.6434.3980.6661.1440.752-1.671-3.342-10.026200.038232323-0.03212223-0.366192223-3.8553434
Percentage of IncrementalCommonSharesAttributableToConversionOfDebtSecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncrementalCommonSharesAttributableToEquityUnitPurchaseAgreements

us-gaap:IncrementalCommonSharesAttributableToEquityUnitPurchaseAgreements


Incremental
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-10-022016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312010-10-032010-07-04
Value11000.07000.0-3000.015000.0025000.005000.022000.011000.010000.022000.043000.014000.01000.08000.063000.08000.015000.09000.01000.023000.070000.028000.03000.021000.043000.022000.01000.019000.059000.027000.012000.033000.0101000.024000.0-5000.052000.0114000.061000.035000.049000.0128000.0
Percentage of IncrementalCommonSharesAttributableToEquityUnitPurchaseAgreements100.0100.0100.0100.00.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements

us-gaap:EmployeeStockOption


Incremental
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-10-022016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-28
Value78000.0108000.0-5000.0141000.0132000.0134000.0-8000.0155000.0183000.0222000.0-12000.0275000.0274000.0321000.0-2000.0306000.0318000.0390000.0421000.0487000.0-20000.0578000.0603000.0696000.0-53000.0879000.0
Percentage of IncrementalCommonSharesAttributableToShareBasedPaymentArrangements100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestrictedStockUnitsRSU


Incremental
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-10-022016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-31
Value1015000.01395000.0160000.01237000.0913000.01163000.0124000.01313000.01002000.01021000.0-21000.01331000.01219000.01666000.0137000.01832000.01622000.01533000.01282000.0965000.0136000.01103000.0978000.0901000.0117000.01167000.0705000.01051000.0127000.01102000.0772000.01123000.0
Percentage of IncrementalCommonSharesAttributableToShareBasedPaymentArrangements1301.31291.7-3200.0877.3691.7867.9-1550.0847.1547.5459.9175.0484.0444.9519.0-6850.0598.7510.1393.1304.5198.2-680.0190.8162.2129.5-220.8132.80.00.00.00.00.00.0

us-gaap:InventoryWriteDown

us-gaap:InventoryWriteDown


Inventory
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312010-10-032010-07-042010-04-04
Value1.342.28525-17.6045.584.0576.3963.0493.4022.3971.722.6533.5221.691.8592.5692.7262.3453.0337.7424.3732.3933.058141.440.6886.4345.032106.9763.8411.9753.8105.4819.3531.5740.8454.4131.7164.6271.0123.7270.2771.177
Percentage of InventoryWriteDown100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InvestmentIncomeInterest

us-gaap:InvestmentIncomeInterest


Investment
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-302019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-06-302012-04-012012-03-312011-12-312011-10-022011-09-302011-07-032011-06-302011-04-032011-03-312010-12-312010-10-032010-07-042010-04-04
Value0.6330.8080.7931.0711.3682.7516.1454.4335.1595.438.0529.0836.2135.4275.9816.4764.5173.2923.523.0952.8921.6661.6422.0171.7081.6741.8162.0351.9221.2661.0361.2060.9480.9031.0721.2561.0670.8740.8740.8930.8930.8783.0493.0491.4031.4031.2871.2872.1151.4663.6810.502
Percentage of InvestmentIncomeInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LossOnContractTermination us-gaap:StatementBusinessSegments

us-gaap:LossOnContractTermination

ter:SemiconductorTest


Loss
Period End2020-12-312020-09-272020-06-282020-03-292019-06-30
Value004000000.0700000.00
Percentage of LossOnContractTermination0.00.0100.0100.00.0

us-gaap:OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax

us-gaap:OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax


Other
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-01
Value-2000.0-2000.0-1000.0-2000.0-2000.0-2000.0-37000.0-37000.0-37000.0-37000.0-61000.0-61000.0-61000.0-61000.0-68000.0-68000.0-68000.0-68000.0-77000.0-81000.0-83000.0-80000.0-74000.0-74000.0-74000.0-74000.0-74000.0-74000.0-74000.0-73000.049000.0-109000.0-109000.0-69000.042000.0-92000.0-92000.0
Percentage of OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditTax

us-gaap:OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditTax


Other
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-31
Value00-1000.0000-11000.0-11000.0-11000.0-11000.0-18000.0-18000.0-18000.0-18000.0-39000.0-38000.0-38000.0-38000.0-51000.0-46000.0-47000.0-46000.0-42000.0-42000.0-42000.0-42000.0-42000.0-42000.0-42000.0-42000.0-40000.0-40000.0-40000.0-40000.0
Percentage of OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditTax0.00.0100.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax


Other
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-03
Value1497000.0-3714000.0497000.0-354000.02810000.0522000.0-624000.01409000.02510000.02030000.0371000.0-123000.0-1000.0-1019000.0-762000.0863000.0902000.0418000.0-3288000.0-670000.02324000.02988000.0-2378000.036000.0-2906000.01469000.0-96000.0-776000.0893000.0963000.096000.0685000.0-2411000.088000.0-565000.01166000.0428000.0278000.0-259000.0-1057000.01295000.0
Percentage of OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax

ter:ForeignCurrencyTranslationAdjustments


Other
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-04
Value5.149-21.123241715-8.7796.028-18.0025.642-4.659-16.874-29.322103.6059.291158.963-20.2341.843-5.04210-5.7593.267
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Other
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-31
Value1.494-3.270.6740.3353.7931.037-0.3761.7542.5372.10.4450.198-2.687-0.5850.950.9850.513-3.073-0.3362.3753.071-2.4820.283-2.6751.7990.251-0.1381.1651.139-0.078
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax29.015.52.72.024.0-11.8-6.2-9.745.0-45.1-2.6-0.7-25.5-16.210.26.25.715.2-18.2-47.129.943.18.70.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-31
Value6.643-24.393251719-7.7425.652-16.2488.179-2.559
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax129.0115.5102.7102.0124.088.293.890.3145.054.9

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsTax us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsTax

us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceCostCredit


Other
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-03
Value000000000000000000034000.00
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsTax0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0100.00.0

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Other
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-04
Value436000.0-908000.0219000.0139000.01084000.0187000.0-103000.0506000.0679000.0577000.084000.0-26000.0-718000.0237000.0481000.0765000.0420000.0-1482000.051000.01101000.01253000.0-771000.048000.0
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsTax0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.03238.20.00.00.0

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax


Other
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-01
Value-3000.0444000.0177000.0689000.0983000.0515000.0248000.0345000.027000.070000.074000.057000.0199000.0-1668000.0177000.087000.083000.095000.0215000.0334000.051000.083000.0-104000.0247000.0231000.0330000.0347000.0638000.0272000.0176000.0-174000.0202000.0143000.0144000.0119000.093000.024000.0
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax


Other
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-31
Value2000.0123000.0-1280000.0194000.0-277000.0-145000.0-67000.0-99000.0-6000.0-20000.015000.017000.068000.0-78000.0124000.067000.042000.064000.0103000.0150000.013000.0-11000.055000.0126000.040000.0169000.054000.0348000.0-141000.0-102000.0-488000.0109000.0-39000.0-83000.0
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossTax us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossTax

us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceCostCredit


Other
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-03
Value-1000.00-1000.00-1000.00-11000.0-11000.0-32000.011000.0-18000.0-17000.0-18000.0-39000.0-38000.0-39000.0-38000.0-51000.0-46000.0-13000.0-46000.0
Percentage of OtherComprehensiveIncomeLossTax100.00.0100.00.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Other
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-30
Value438000.0-1031000.0169000.0-55000.0808000.042000.0-170000.0407000.0673000.0557000.069000.0-93000.0-640000.0113000.0414000.0723000.0356000.0-1585000.0-99000.01088000.01264000.0-826000.0-78000.0-1688000.0535000.0292000.0-487000.0447000.0552000.0
Percentage of OtherComprehensiveIncomeLossTax-43800.00.0-16900.00.0-80800.00.01545.5-3700.0-2103.15063.6-383.3547.13555.6-289.7-1089.5-1853.8-936.83107.8215.2-8369.2-2747.80.00.00.00.00.00.00.00.0

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax


Other
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312010-10-032010-07-04
Value1494000.0-3270000.0674000.0335000.03793000.01037000.0-376000.01754000.02537000.02100000.0445000.0-66000.0198000.0-2687000.0-585000.0950000.0985000.0513000.0-3073000.0-336000.02375000.03071000.0-2482000.0283000.0-2675000.01799000.0251000.0-138000.01165000.01139000.0-78000.0887000.0-2268000.0363000.0-349000.01259000.0452000.0744000.0-259000.0-1057000.01298000.0199000.0-172000.01435000.0-401000.0
Percentage of OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax


Other
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-31
Value436000.0908000.0219000.0139000.01084000.0187000.0-103000.0507000.0678000.0577000.084000.0-62000.0-25000.0-718000.0237000.0481000.0765000.0420000.0-1482000.051000.01102000.01253000.0-2563000.0-48000.01648000.0-704000.0-2552000.0-139000.0558000.0654000.0583000.0358000.0-841000.0115000.0
Percentage of OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherIncreaseDecreaseInEnvironmentalLiabilities

us-gaap:OtherIncreaseDecreaseInEnvironmentalLiabilities


Other
Period End2021-07-04
Value1700000.0
Percentage of OtherIncreaseDecreaseInEnvironmentalLiabilities100.0

us-gaap:OtherNoncashIncomeExpense

us-gaap:OtherNoncashIncomeExpense


Other
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312010-10-03
Value1000.0-200000.0-807000.0-227000.0-20000.0-503000.0-156000.0-181000.0-210000.0-219000.0-567000.0225000.0-1393000.0-278000.0724000.0-1151000.0-2000.0599000.0425000.0-92000.0-484000.02557000.0-1369000.0-2571000.01417000.0-5615000.03275000.0-1306000.0141000.0490000.0994000.0-946000.0-131000.0-1248000.0312000.0-16000.0454000.0-3290000.0-45000.02042000.0-618000.0-4759000.0193000.0
Percentage of OtherNoncashIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherRestructuringCosts

us-gaap:OtherRestructuringCosts


Other
Period End2021-07-04
Value0.4
Percentage of OtherRestructuringCosts100.0

us-gaap:OtherRestructuringCosts us-gaap:ProductOrService

ter:SemiconductorTestIndustrialAutomationAndCorporate


Other
Period End2020-12-312020-09-272020-06-28
Value0.00.10.8
Percentage of OtherRestructuringCosts0.00.00.0

us-gaap:OtherRestructuringCosts us-gaap:StatementBusinessSegments

ter:CorporateAndEliminations


Other
Period End2021-07-042020-06-28
Value1.70.75
Percentage of OtherRestructuringCosts425.00.0

ter:SemiconductorTest


Other
Period End2020-09-27
Value2.9
Percentage of OtherRestructuringCosts0.0

ter:WirelessTest


Other
Period End2020-09-272019-09-29
Value1.8020.724
Percentage of OtherRestructuringCosts0.00.0

us-gaap:PaymentForContingentConsiderationLiabilityFinancingActivities

us-gaap:PaymentForContingentConsiderationLiabilityFinancingActivities


Payment
Period End2020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-02
Value0.00.00.08.8520.00.00.0270.00.0130.00.00.01.050.00.0
Percentage of PaymentForContingentConsiderationLiabilityFinancingActivities0.00.00.0100.00.00.00.0100.00.00.0100.00.00.00.0100.00.00.0

us-gaap:PaymentForContingentConsiderationLiabilityFinancingActivities us-gaap:BusinessAcquisition

ter:AutoguideLlc


Payment
Period End2021-07-042021-04-042020-06-28
Value0.010029
Percentage of PaymentForContingentConsiderationLiabilityFinancingActivities0.00.00.0

ter:AvionicsInterfaceTechnologiesLlc


Payment
Period End2020-12-312020-09-272020-06-282020-03-292017-12-312017-10-012017-07-022017-04-02
Value0.00.00.08.90.00.00.01.1
Percentage of PaymentForContingentConsiderationLiabilityFinancingActivities0.00.00.0100.50.00.00.0104.8

us-gaap:PaymentsForProceedsFromLifeInsurancePolicies

us-gaap:PaymentsForProceedsFromLifeInsurancePolicies


Payments
Period End2020-12-312020-09-272019-12-312019-09-292018-12-31
Value000-2639000.00
Percentage of PaymentsForProceedsFromLifeInsurancePolicies0.00.00.0100.00.0

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation


Payments
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-03
Value1.119300.2790.2160.449220.1910.1040.128140.1820.122190.2970.1460.149120.1690.0770.188.972
Percentage of PaymentsRelatedToTaxWithholdingForShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsToAcquireAvailableForSaleSecurities

us-gaap:PaymentsToAcquireAvailableForSaleSecurities


Payments
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312010-10-032010-07-042010-04-04
Value186211411188112187571211083751091564903557011811537804382152214663672543357343202662575111993331242383567680989428721139225412895
Percentage of PaymentsToAcquireAvailableForSaleSecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired

us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired


Payments
Period End2020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-04-01
Value0.00.00.0-0.149570.0156.9725
Percentage of PaymentsToAcquireBusinessesNetOfCashAcquired0.00.00.0100.0100.00.0100.0100.0100.0

us-gaap:ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions

us-gaap:ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions


Proceeds
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312010-10-032010-07-042010-04-04
Value15171.999130.005120.032140.821140.0140.027100.0319.2470.131150.3882.1898.7569.141.3850.2678.9798.8990.261100.478100.8187.140.7178.9210.5170.9757.0599.9250.1690.1646.976102.4540.352356.079
Percentage of ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities

us-gaap:ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities


Proceeds
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-31
Value265194170126849821816091141336257212228165219884174547329989114074118972801141331481196843124633
Percentage of ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromSaleOfAvailableForSaleSecurities

us-gaap:ProceedsFromSaleOfAvailableForSaleSecurities


Proceeds
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312010-10-032010-07-042010-04-04
Value54612.3955.9511154517375.442.95828800841299921338613195239472212482148623835110112528228212431-13.09528269223218819647407.069
Percentage of ProceedsFromSaleOfAvailableForSaleSecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProductWarrantyAccrualPayments

us-gaap:ProductWarrantyAccrualPayments


Product
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312010-10-032010-07-04
Value4.9645.0686.7446.2724.5114.1474.484.2652.6084.5674.282.6753.7673.5763.8313.0553.2622.6993.0683.2493.183.1622.8912.372.6962.8492.7322.9822.6392.7631.9532.472.5393.2053.463.8133.727-2.947-3.212-3.22-3.1-3.005-3.821-3.464-2.671
Percentage of ProductWarrantyAccrualPayments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProductWarrantyAccrualPreexistingIncreaseDecrease

us-gaap:ProductWarrantyAccrualPreexistingIncreaseDecrease


Product
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312010-10-032010-07-04
Value-3450000.0447000.0-748000.0158000.0356000.01056000.0870000.01132000.0694000.01330000.0812000.0282000.0-34000.0-139000.0120000.0-35000.07000.0-471000.0-717000.0-460000.0-420000.0243000.0-120000.0-1211000.0-797000.0-1031000.0-1008000.0-559000.0-302000.0-140000.0-1211000.0-524000.0-869000.0-929000.0-492000.01226000.0403000.0-260000.0-126000.0-491000.0-1116000.0-956000.0-1301000.0-391000.0-234000.0
Percentage of ProductWarrantyAccrualPreexistingIncreaseDecrease100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProductWarrantyAccrualWarrantiesIssued

us-gaap:ProductWarrantyAccrualWarrantiesIssued


Product
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312010-10-032010-07-04
Value10118.9688.2556.25.0664.0983.5082.2953.0663.8742.763.3483.0633.1742.7345.2943.0212.6653.2484.8883.491.9913.2613.9262.3612.7314.4195.3992.8581.7933.6743.6841.4231.1614.1185.6493.7762.1113.5023.9763.5773.0155.2125.202
Percentage of ProductWarrantyAccrualWarrantiesIssued100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax us-gaap:StatementEquityComponents

us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax

us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceCostCredit


Reclassification
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-05
Value2000.02000.01000.02000.02000.02000.037000.037000.037000.037000.061000.061000.061000.061000.068000.068000.068000.068000.077000.081000.0-83000.080000.074000.074000.0-74000.0
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Reclassification
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-31
Value-3000.0444000.0177000.0689000.0984000.0515000.0248000.0345000.027000.070000.074000.0199000.0-1668000.0177000.087000.082000.095000.0215000.0334000.051000.083000.0-104000.0247000.0231000.0330000.0347000.0638000.0272000.0176000.0-174000.0
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax-150.022200.017700.034450.049200.025750.0670.3932.473.0189.2121.3326.2-2734.4260.3127.9120.6139.7279.2412.3-61.4103.8-140.5333.8-312.20.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Reclassification
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-04
Value-1000.0446000.0178000.0691000.0985000.0517000.0285000.0382000.064000.0107000.01996000.0118000.0260000.0-1607000.0245000.0155000.0151000.0163000.0292000.0415000.0134000.0163000.0-30000.0321000.0
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax-50.022300.017800.034550.049250.025850.0770.31032.4173.0289.23272.1193.4426.2-2634.4360.3227.9222.1239.7379.2512.3-161.4203.8-40.5433.8

us-gaap:ReclassificationFromAociCurrentPeriodTax

us-gaap:ReclassificationFromAociCurrentPeriodTax


Reclassification
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-29
Value-2000.0123000.051000.0194000.0277000.0145000.078000.0110000.017000.031000.033000.035000.086000.0-60000.0163000.0105000.080000.0102000.0154000.0196000.026000.035000.097000.0168000.082000.0211000.096000.0390000.0183000.0
Percentage of ReclassificationFromAociCurrentPeriodTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ReclassificationFromAociCurrentPeriodTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceCostCredit


Reclassification
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-05
Value001000.000011000.011000.011000.0-11000.018000.018000.018000.018000.039000.038000.038000.038000.0329000.0-46000.0-47000.046000.0296000.0-42000.0-42000.0
Percentage of ReclassificationFromAociCurrentPeriodTax-0.00.02.00.00.00.014.110.064.7-35.554.551.420.9-30.023.936.247.537.3213.6-23.5-180.8131.4305.2-25.0-51.2

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Reclassification
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-05
Value-2000.0123000.050000.0194000.0277000.0145000.067000.099000.06000.0-20000.015000.017000.068000.0-78000.0124000.067000.042000.064000.0103000.0150000.013000.0-11000.055000.0126000.040000.0
Percentage of ReclassificationFromAociCurrentPeriodTax100.0100.098.0100.0100.0100.085.990.035.3-64.545.548.679.1130.076.163.852.562.766.976.550.0-31.456.775.048.8

us-gaap:RepaymentsOfConvertibleDebt

us-gaap:RepaymentsOfConvertibleDebt


Repayments
Period End2021-07-042021-04-04
Value1551
Percentage of RepaymentsOfConvertibleDebt100.0100.0

us-gaap:RestructuringSettlementAndImpairmentProvisions

us-gaap:RestructuringSettlementAndImpairmentProvisions


Restructuring
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-302019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052014-12-312014-09-282014-06-292013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-06-302012-04-012012-03-312011-12-312011-10-022011-09-302011-06-302011-03-31
Value2.507-7.13-15.117-27.70137-7.606-2.088-6.5-6.5-10.4045.112111.712.389-0.3138.97-4.4072.2882.5115.57122.6081.5875.2040.261-0.3851.198-0.4050.5720.60.8890.2590.332-0.3170.683-6.262-6.262-1.825-1.8253.8241.4651.4651.0410.413
Percentage of RestructuringSettlementAndImpairmentProvisions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestructuringSettlementAndImpairmentProvisions us-gaap:StatementBusinessSegments

ter:IndustrialAutomation


Restructuring
Period End2020-12-312019-12-312018-12-312018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-02
Value1.0790.288-0.2880.2180.120.2640.2060.3210.6240.0530.532
Percentage of RestructuringSettlementAndImpairmentProvisions-7.1-13.8-2.59.1-38.32.9-4.714.024.91.04.4

us-gaap:SalesTypeLeaseRevenue

us-gaap:SalesTypeLeaseRevenue


Sales
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-01
Value4.23.13.91.72.51.83.51.51.71.71.82.33.64.3
Percentage of SalesTypeLeaseRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:SeveranceCosts1

us-gaap:SeveranceCosts1


Severance
Period End2021-07-042020-12-312020-09-302020-03-312019-12-312019-09-302019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022015-12-312015-10-042014-12-312014-09-282013-12-31
Value400000.01100000.01100000.0700000.0500000.0800000.07800000.0800000.0800000.0800000.01700000.02400000.02400000.01800000.0600000.0800000.0600000.0-1000000.01100000.0-400000.0200000.0-800000.0
Percentage of SeveranceCosts1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:SeveranceCosts1 us-gaap:StatementBusinessSegments

ter:SemiconductorTest


Severance
Period End2021-03-312021-04-042020-12-312020-09-272020-06-282020-03-292019-09-292019-06-302019-03-312018-09-302018-07-012018-04-01
Value500000.0200000.01100000.0500000.0800000.01400000.0500000.0800000.01300000.01700000.02400000.03900000.0
Percentage of SeveranceCosts10.00.0100.00.00.00.06.4100.0162.5100.0100.0162.5

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue

ter:ProfitBeforeIncomeAndTaxPerformanceBasedRestrictedStockUnits


Share
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-03
Value1.37112.2800070.94001.2135.670046.6200027.7200018.71
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue100.0100.00.00.00.0100.00.00.0100.0100.00.00.0100.00.00.00.0100.00.00.00.0100.0

ter:TotalShareholderReturnPerformanceBasedRestrictedStockUnits


Share
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-30
Value0125.0200089.93003.0448.470054.8500035.6600020.2900018.2100022.06
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue0.0111.30.00.00.0126.80.00.0251.2135.90.00.0117.70.00.00.0128.60.00.00.0108.40.00.00.00.00.00.00.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue us-gaap:TitleOfIndividual, us-gaap:AwardType

ter:Employees, ter:ServiceBasedRestrictedStockUnits


Share
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-29
Value0.68112.550.550.24-0.4670.980.80.75
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue49.6100.20.00.00.0100.10.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate

ter:TotalShareholderReturnPerformanceBasedRestrictedStockUnits


Share
Period End2021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-30
Value0.400.59400.0060000.01000.0080000.010000.01240000.01330000.0125
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate100.00.0100.00.0100.00.00.00.0100.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.0

us-gaap:EmployeeStockOption


Share
Period End2021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-30
Value0.4-0.10.59400.0060000.01000.0080000.010000.01240000.01330000.0125000000
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate100.00.0100.00.0100.00.00.00.0100.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.00.00.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate


Share
Period End2021-04-042020-03-29
Value37.831.6
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate us-gaap:AwardType

ter:TotalShareholderReturnPerformanceBasedRestrictedStockUnits


Share
Period End2021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-05
Value43.9034.55100.349000.0010.318000.2680000.2660000.270000.282
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate116.10.00.00.01.10.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:EmployeeStockOption


Share
Period End2020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-30
Value0.431.28400.3160000.301000.2640000.2780000.3290000.3340000.3880000.46800
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate0.00.00.01.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate us-gaap:AwardType, us-gaap:FinancialInstrument

ter:TotalShareholderReturnPerformanceBasedRestrictedStockUnits, exch:XNYS


Share
Period End2020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-03
Value011.28600.11400-0.0010.12000.1240000.1340000.131
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate0.00.00.00.40.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate us-gaap:FinancialInstrument

exch:XNYS


Share
Period End2021-04-042020-03-29
Value22.911.4
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate60.636.1

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate

ter:TotalShareholderReturnPerformanceBasedRestrictedStockUnits


Share
Period End2021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-30
Value0.201.48500.0150000.026000.0220000.0150000.00970000.00770000.0075
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate100.00.0100.00.0100.00.00.00.0100.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.0

us-gaap:EmployeeStockOption


Share
Period End2021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-30
Value0.4-0.11.58400.01600-0.0010.026000.0240000.020000.0140000.0110000.0120000.00600
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate200.00.0106.70.0106.70.00.00.0100.00.00.0109.10.00.00.0133.30.00.00.0144.30.00.00.0142.90.00.00.0160.00.00.00.00.00.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue us-gaap:TitleOfIndividual, us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue

srt:ExecutiveOfficer, ter:ServiceBasedRestrictedStockUnits


Share
Period End2021-07-042021-04-042020-09-272020-06-282020-03-292019-09-29
Value036.60020.670
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue0.0100.00.00.0100.00.0

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

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage

ter:TotalShareholderReturnPerformanceBasedRestrictedStockUnits, us-gaap:ShareBasedCompensationAwardTrancheOne


Sharebased
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-06-302019-03-312019-01-312016-01-312014-01-31
Value00200.0000002.02.02.0
Percentage of SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage0.00.0100.00.00.00.00.00.0100.0100.0100.0

ter:TotalShareholderReturnPerformanceBasedRestrictedStockUnits, us-gaap:ShareBasedCompensationAwardTrancheTwo


Sharebased
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-06-302019-03-312019-01-312016-01-312014-01-31
Value0200.0-200.0198.002.002.0000
Percentage of SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage0.00.0-100.00.00.00.00.00.00.00.00.0

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent us-gaap:AwardType

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent

ter:EmployeeStockPurchasePlan


Sharebased
Period End2021-07-042021-04-04
Value0100.0
Percentage of SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent0.0100.0

us-gaap:StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities us-gaap:StatementClassOfStock

us-gaap:StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities

us-gaap:ConvertibleCommonStock


Stock
Period End2021-04-04
Value-2554000.0
Percentage of StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities100.0

us-gaap:StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities us-gaap:StatementEquityComponents

us-gaap:CommonStock


Stock
Period End2021-07-042021-04-04
Value367000.01222000.0
Percentage of StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities0.0-47.8

us-gaap:StockIssuedDuringPeriodSharesConversionOfUnits us-gaap:StatementClassOfStock

us-gaap:StockIssuedDuringPeriodSharesConversionOfUnits

us-gaap:ConvertibleCommonStock


Stock
Period End2021-07-04
Value20
Percentage of StockIssuedDuringPeriodSharesConversionOfUnits100.0

us-gaap:StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans

us-gaap:StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans


Stock
Period End2020-07-312020-01-312019-07-312019-01-312018-07-312018-01-312017-07-312017-01-312016-07-312016-01-312015-07-312015-01-312014-07-312014-01-312013-07-312013-01-312012-07-312012-01-312011-07-312011-01-312010-07-31
Value200000.0200000.0300000.0400000.0300000.0300000.0300000.0400000.0500000.0500000.0500000.0500000.0500000.0400000.0400000.0600000.0600000.0600000.0600000.0800000.0600000.0
Percentage of StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans us-gaap:SubsequentEventType

us-gaap:SubsequentEvent


Stock
Period End2021-01-312020-01-312019-01-312018-01-312017-01-312016-01-312015-01-312014-01-312013-01-31
Value100000.0200000.0400000.0300000.0400000.0500000.0500000.0400000.0600000.0
Percentage of StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans0.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueConversionOfConvertibleSecurities

us-gaap:StockIssuedDuringPeriodValueConversionOfConvertibleSecurities


Stock
Period End2021-07-042021-04-04
Value46157
Percentage of StockIssuedDuringPeriodValueConversionOfConvertibleSecurities100.0100.0

us-gaap:StockIssuedDuringPeriodValueConversionOfConvertibleSecurities us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stock
Period End2021-07-042021-04-04
Value45157
Percentage of StockIssuedDuringPeriodValueConversionOfConvertibleSecurities99.999.9

us-gaap:CommonStock


Stock
Period End2021-07-042021-04-04
Value0.0460.153
Percentage of StockIssuedDuringPeriodValueConversionOfConvertibleSecurities0.10.1

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised us-gaap:BalanceSheetLocation

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised

ter:ConvertibleCommonShares


Stock
Period End2021-07-042021-04-04
Value0.41.2
Percentage of StockIssuedDuringPeriodValueStockOptionsExercised100.0100.0

us-gaap:StockRepurchasedDuringPeriodShares

us-gaap:StockRepurchasedDuringPeriodShares


Stock
Period End2021-07-042021-04-042020-09-272020-06-282020-03-292019-09-292019-06-302019-03-312018-07-012018-04-012017-10-012017-07-022017-04-022014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312011-12-312011-10-022010-11-30
Value1.20.40.00.21.32.32.04.55.92.91.61.71.30.00.00.00.00.00.00.00.00.62.02.6
Percentage of StockRepurchasedDuringPeriodShares100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.00.00.00.00.0100.0100.0100.0

us-gaap:StockRepurchasedDuringPeriodShares us-gaap:StatementEquityComponents

us-gaap:CommonStock


Stock
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-01
Value-1.19-0.3740.00.0-0.173-1.344-2.102-2.323-2.016-4.456-7.796-5.005-5.9-2.939
Percentage of StockRepurchasedDuringPeriodShares-99.2-93.50.00.0-86.5-103.40.0-101.0-100.8-99.00.00.0-100.0-101.3

us-gaap:StockRepurchasedDuringPeriodValue

us-gaap:StockRepurchasedDuringPeriodValue


Stock
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032011-12-312011-10-022010-11-30
Value155470.00.06.40182125124891518312012261344857563761282828-55.0752331
Percentage of StockRepurchasedDuringPeriodValue100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockRepurchasedDuringPeriodValue us-gaap:StatementEquityComponents

us-gaap:CommonStock


Stock
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-01
Value0.1490.0470.00.00.0220.1680.2630.290.2520.5570.9750.6260.7380.368
Percentage of StockRepurchasedDuringPeriodValue0.10.10.00.00.30.20.20.20.30.40.10.30.30.3

us-gaap:RetainedEarnings


Stock
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-01
Value155470.00.06.3798112512488150262200225140
Percentage of StockRepurchasedDuringPeriodValue99.999.90.00.099.799.899.899.899.799.631.699.799.7104.5

us-gaap:TreasuryStockAcquiredAverageCostPerShare

us-gaap:TreasuryStockAcquiredAverageCostPerShare


Treasury
Period End2021-07-042021-04-042020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032011-10-032011-10-022010-11-30
Value4.96120.730-0.4858.81-1.253.733.0835.12-2.56-4.8745.691.640.892.3929.380.180.090.0518.8112.0612.0611.84
Percentage of TreasuryStockAcquiredAverageCostPerShare100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment

us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment


Weighted
Period End2021-07-042021-04-042020-09-272020-06-282020-03-292019-09-292019-06-302019-03-312018-09-302018-07-012018-04-012017-10-012017-07-022017-04-022016-10-022016-04-032015-10-042015-07-052015-04-052014-09-282014-06-292014-03-302013-09-292013-06-302013-03-312012-09-302012-07-012012-04-012011-10-022011-07-032011-04-032010-10-032010-07-04
Value2021181414107.3493.444.7614.1798.2293.292.7551.9311.7181.4611.7041.6511.6251022434444454143453645474851
Percentage of WeightedAverageNumberDilutedSharesOutstandingAdjustment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ter:AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentTax

ter:AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentTax


Accumulated
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312011-12-31
Value1317000.0879000.01910000.01741000.01796000.0988000.0946000.01116000.0709000.036000.0-521000.0-902000.0-511000.0-418000.01815000.01702000.01288000.0565000.0209000.01794000.01893000.0805000.0-459000.0367000.0445000.02133000.01598000.01306000.01793000.01346000.0794000.0835000.0835000.0835000.0835000.0666000.0
Percentage of AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ter:AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansTax

ter:AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansTax


Accumulated
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312011-12-31
Value-1127000.0-1126000.0-1126000.0-1125000.0-1125000.0-1124000.0-1124000.0-1113000.0-1102000.01092000.0-1081000.00-1045000.0-1028000.0-932000.0-893000.0-855000.0-816000.0-778000.0-727000.0-681000.0-668000.0-622000.0-580000.0-538000.0-495000.0-453000.0-411000.0-369000.0-326000.0-284000.0-125000.0-125000.0-125000.0-125000.09000.0
Percentage of AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ter:CashAndCashEquivalentsAndAvailableForSaleSecuritiesFairValueDisclosure us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

ter:CashAndCashEquivalentsAndAvailableForSaleSecuritiesFairValueDisclosure

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring


Cash
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042014-12-31
Value985847828963701540754485488437590781483487427402495338270314338335276299284
Percentage of CashAndCashEquivalentsAndAvailableForSaleSecuritiesFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring


Cash
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042014-12-31
Value4325787253773603642605545065586145438201100147614451124114313429397676407317781014
Percentage of CashAndCashEquivalentsAndAvailableForSaleSecuritiesFairValueDisclosure43.868.287.539.251.467.534.5114.1103.7127.6104.069.5169.8225.6345.1359.2227.1337.9496.5298.2227.0190.8264.6260.1357.3

ter:CashAndCashEquivalentsAndAvailableForSaleSecuritiesFairValueDisclosure us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring


Cash
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042014-12-31
Value141814251554134110629051015104099499612041324130415871903184816201482161212541105975100810771298
Percentage of CashAndCashEquivalentsAndAvailableForSaleSecuritiesFairValueDisclosure143.8168.2187.5139.2151.4167.5134.5214.1203.7227.6204.0169.5269.8325.6445.1459.2327.1437.9596.5398.2327.0290.8364.6360.1457.3

ter:ContractManufacturerAndSupplierPrepayments

ter:ContractManufacturerAndSupplierPrepayments


Contract
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-07-022017-04-022016-12-31
Value320291212185191173143136139147131102787682728384
Percentage of ContractManufacturerAndSupplierPrepayments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ter:DeferredRevenueAndCustomerAdvances

ter:DeferredRevenueAndCustomerAdvances


Deferred
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-31
Value20719919318817914915013812711711010710710711314311310410716521797111103102929183827869
Percentage of DeferredRevenueAndCustomerAdvances100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ter:DeferredRevenueAndCustomerAdvancesCurrent

ter:DeferredRevenueAndCustomerAdvancesCurrent


Deferred
Period End2021-07-042021-04-042020-12-312020-09-272020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-10-042015-07-052015-04-052014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312009-12-31
Value14814413412912498104958984777782858311181788413819072857477747160636455707