UCTT


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

Table of contents



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

us-gaap:CommonStockSharesIssued

us-gaap:CommonStockSharesAuthorized

us-gaap:PreferredStockSharesAuthorized

us-gaap:CommonStockSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted

us-gaap:IncomeLossFromContinuingOperationsPerBasicShare

us-gaap:IncomeLossFromContinuingOperationsPerDilutedShare

us-gaap:ComprehensiveIncomeNetOfTax
us-gaap:ProductOrService
us-gaap:CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization

us-gaap:CostOfGoodsAndServicesSold

us-gaap:CostOfRevenue

us-gaap:GeneralAndAdministrativeExpense

us-gaap:GrossProfit
us-gaap:ProductOrService
us-gaap:StatementBusinessSegments

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeTaxExpenseBenefit

us-gaap:InterestExpense

us-gaap:InterestIncomeExpenseNonoperatingNet
us-gaap:BusinessAcquisition

us-gaap:InterestIncomeOperating

us-gaap:InterestPaidNet

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest

us-gaap:OperatingExpenses

us-gaap:OperatingIncomeLoss
us-gaap:ProductOrService
us-gaap:StatementBusinessSegments

us-gaap:OtherComprehensiveIncomeLossNetOfTax
us-gaap:StatementEquityComponents

us-gaap:ProfitLoss
us-gaap:StatementEquityComponents

us-gaap:ResearchAndDevelopmentExpense

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:BusinessAcquisition
us-gaap:ProductOrService
us-gaap:StatementBusinessSegments
us-gaap:StatementGeographical
us-gaap:ProductOrService
us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax

us-gaap:Revenues

us-gaap:SellingAndMarketingExpense

us-gaap:Assets
us-gaap:ProductOrService
us-gaap:StatementBusinessSegments

us-gaap:Liabilities

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:StockholdersEquity

us-gaap:AssetsCurrent

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:AccountsReceivableNetCurrent

us-gaap:InventoryNet

us-gaap:InventoryFinishedGoods

us-gaap:PrepaidExpenseAndOtherAssetsCurrent
us-gaap:StatementGeographical
us-gaap:NoncurrentAssets
us-gaap:PropertyPlantAndEquipmentByType
us-gaap:PropertyPlantAndEquipmentGross

us-gaap:ConstructionInProgressGross

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AmortizationOfIntangibleAssets
us-gaap:BusinessAcquisition

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:Goodwill
us-gaap:StatementBusinessSegments

us-gaap:IntangibleAssetsNetExcludingGoodwill
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:FiniteLivedIntangibleAssetsNet
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OtherAssetsNoncurrent

us-gaap:AccountsPayableCurrent
us-gaap:BusinessAcquisition
us-gaap:DebtCurrent

us-gaap:LiabilitiesCurrent

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OtherLiabilitiesCurrent

us-gaap:LongTermDebt
us-gaap:DebtInstrument

us-gaap:DeferredIncomeTaxLiabilitiesNet

us-gaap:MinorityInterest

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:OperatingLeaseLiability

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue
us-gaap:LeaseContractualTerm

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:StockholdersEquity

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
us-gaap:StatementEquityComponents

us-gaap:CommonStockValue

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:TreasuryStockValue

us-gaap:MinorityInterest

us-gaap:StockIssuedDuringPeriodValueNewIssues
us-gaap:StatementEquityComponents

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
us-gaap:StatementEquityComponents

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:IncreaseDecreaseInAccountsPayable

us-gaap:IncreaseDecreaseInAccountsReceivable

us-gaap:IncreaseDecreaseInInventories

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetIncomeLoss

us-gaap:ProfitLoss
us-gaap:StatementEquityComponents

us-gaap:ShareBasedCompensation
us-gaap:IncomeStatementLocation

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:RepaymentsOfLongTermDebt

us-gaap:Dividends
us-gaap:StatementEquityComponents
us-gaap:Range, us-gaap:BusinessAcquisition
us-gaap:DebtInstrumentInterestRateStatedPercentage
us-gaap:Range, us-gaap:StatementGeographical, us-gaap:DebtInstrument, us-gaap:RelatedPartyTransactionsByRelatedParty
us-gaap:StatementGeographical, us-gaap:DebtInstrument, us-gaap:RelatedPartyTransactionsByRelatedParty

us-gaap:EffectiveIncomeTaxRateContinuingOperations

us-gaap:DeferredTaxLiabilities

us-gaap:DeferredTaxAssetsNet

us-gaap:UnrecognizedTaxBenefits
us-gaap:BalanceSheetLocation
us-gaap:DeferredTaxAssetsValuationAllowance

uctt:AmortizationOfDebtIssuanceCosts

uctt:AmortizationOfFiniteLivedIntangibles
us-gaap:BusinessAcquisition
uctt:BusinessCombinationEarnOutPaymentsFairValue
us-gaap:UnusualRiskOrUncertaintyByNature
uctt:CapsForLimitationOnTheDeductionForInterestExpense

uctt:GainFromInsuranceProceeds
us-gaap:BusinessAcquisition
uctt:IncreaseDecreaseInLiabilityRecordedAsOtherIncome

uctt:IncreaseDecreaseInOperatingLeaseAssetsAndLiabilitiesNet
us-gaap:UnusualRiskOrUncertaintyByNature
uctt:PercentageOfBonusDepreciation
us-gaap:UnusualRiskOrUncertaintyByNature
uctt:PercentageOfCorporateCharitableDeductionLimitOfTaxableIncome
dei:LegalEntity
uctt:PercentageOfIncreaseInNoncontrollingInterest
dei:LegalEntity, us-gaap:SubsequentEventType, us-gaap:TypeOfArrangement
uctt:PercentageOfOriginalOutstandingPrincipalBalanceAsQuarterlyPrincipalPayment
us-gaap:UnusualRiskOrUncertaintyByNature
uctt:PercentageRemovalOfTaxableIncomeLimitationOnNetOperatingLossesDeduction

uctt:RevenueAgainstCostOfGoodsSoldAndOtherOperatingExpenses

uctt:RevenueAgainstCostOfRevenues

us-gaap:AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation
us-gaap:StatementEquityComponents

us-gaap:AllocatedShareBasedCompensationExpenseNetOfTax
us-gaap:BusinessAcquisition
us-gaap:BusinessAcquisitionProFormaEarningsPerShareBasic
us-gaap:BusinessAcquisition
us-gaap:BusinessAcquisitionProFormaEarningsPerShareDiluted
us-gaap:BusinessAcquisition
us-gaap:BusinessAcquisitionsProFormaNetIncomeLoss
us-gaap:BusinessAcquisition
us-gaap:BusinessAcquisitionsProFormaRevenue
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationAcquisitionRelatedCosts
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationConsiderationTransferred1
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationStepAcquisitionEquityInterestInAcquireeFairValue1
us-gaap:ConcentrationRiskByBenchmark, us-gaap:ConcentrationRiskByType
us-gaap:ConcentrationRiskPercentage1
us-gaap:MajorCustomers, us-gaap:ConcentrationRiskByBenchmark, us-gaap:ConcentrationRiskByType

us-gaap:DefinedBenefitPlanContributionsByEmployer

us-gaap:DefinedContributionPlanEmployerDiscretionaryContributionAmount

us-gaap:DepreciationAndAmortization

us-gaap:DerivativeGainLossOnDerivativeNet
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:IncomeStatementLocation
us-gaap:DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations

us-gaap:EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense

us-gaap:IncreaseDecreaseInAccruedIncomeTaxesPayable

us-gaap:IncreaseDecreaseInDeferredIncomeTaxes

us-gaap:IncreaseDecreaseInEmployeeRelatedLiabilities

us-gaap:IncreaseDecreaseInOtherNoncurrentAssets

us-gaap:IncreaseDecreaseInOtherOperatingLiabilities

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
us-gaap:IndefiniteLivedIntangibleAssetsByMajorClass
us-gaap:IndefinitelivedIntangibleAssetsAcquired

us-gaap:LeaseCost
us-gaap:FinancialInstrument
us-gaap:LiabilitiesFairValueAdjustment
us-gaap:RegulatoryLiability
us-gaap:Range, us-gaap:StatementGeographical, us-gaap:CreditFacility, us-gaap:RelatedPartyTransactionsByRelatedParty
us-gaap:LineOfCreditFacilityInterestRateDuringPeriod

us-gaap:NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1

us-gaap:NoncontrollingInterestIncreaseFromBusinessCombination
us-gaap:StatementEquityComponents

us-gaap:OperatingLeaseCost

us-gaap:OperatingLeasePayments

us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship
us-gaap:OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax

us-gaap:OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax

us-gaap:OtherNoncashExpense

us-gaap:ProceedsFromBankDebt

us-gaap:ProceedsFromIncomeTaxRefunds
us-gaap:SubsidiarySaleOfStock
us-gaap:ProceedsFromIssuanceInitialPublicOffering
us-gaap:SubsequentEventType, us-gaap:SubsidiarySaleOfStock
us-gaap:ProceedsFromIssuanceOfCommonStock
us-gaap:SubsidiarySaleOfStock
dei:LegalEntity, us-gaap:CreditFacility
us-gaap:ProceedsFromIssuanceOfSecuredDebt
dei:LegalEntity, us-gaap:SubsequentEventType
dei:LegalEntity, us-gaap:SubsequentEventType, us-gaap:TypeOfArrangement
us-gaap:BusinessAcquisition
us-gaap:BusinessAcquisition
us-gaap:ProceedsFromRepaymentsOfDebt

us-gaap:ProceedsFromSaleOfInsuranceInvestments

us-gaap:RestructuringCharges

us-gaap:SaleOfStockConsiderationReceivedOnTransaction
us-gaap:SubsequentEventType
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue

us-gaap:ShortTermLeaseCost
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodSharesEmployeeStockOwnershipPlan

us-gaap:StockIssuedDuringPeriodValueEmployeeStockOwnershipPlan
us-gaap:StatementEquityComponents
us-gaap:AwardType
us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation
us-gaap:SubsidiarySaleOfStock
us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised

uctt:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAccruedCompensationAndRelatedBenefits

uctt:BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedOperatingLeaseRightOfUseAssets
us-gaap:BalanceSheetLocation
uctt:DeferredTaxAssetsIntangibleAssets
us-gaap:BalanceSheetLocation
uctt:DeferredTaxAssetsInterestExpenseLimitation
us-gaap:BalanceSheetLocation
uctt:DeferredTaxAssetsOperatingLeaseLiabilities

uctt:DeferredTaxLiabilitiesGoodwill

uctt:DeferredTaxLiabilitiesIntangibleLiabilities

uctt:DeferredTaxLiabilitiesOperatingLeaseRightOfUseAsset

uctt:FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFour

uctt:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour

uctt:PropertyPlantAndEquipmentNetExcludingConstructionInProgress
us-gaap:AwardType
uctt:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedAggregateGrantDateFairValue
us-gaap:AwardType
uctt:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedAndExpectedToVestAggregateIntrinsicValue
us-gaap:BusinessAcquisition
uctt:StockPurchaseObligationFairValue

us-gaap:AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax

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

us-gaap:BusinessCombinationAcquisitionOfLessThan100PercentNoncontrollingInterestFairValue
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FinancialInstrument
us-gaap:BusinessCombinationContingentConsiderationLiability
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:RegulatoryLiability
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FinancialInstrument, us-gaap:MeasurementInputType
us-gaap:BusinessCombinationContingentConsiderationLiabilityMeasurementInput
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:MeasurementInputType
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:MeasurementInputType, us-gaap:RegulatoryLiability
us-gaap:Range, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FinancialInstrument, us-gaap:MeasurementInputType

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents
dei:LegalEntity

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesLongTermDebt

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxAssets

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilities

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles
us-gaap:BusinessAcquisition
us-gaap:BusinessAcquisition, us-gaap:FiniteLivedIntangibleAssetsByMajorClass
us-gaap:Range, us-gaap:BusinessAcquisition, us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedLessNoncontrollingInterest

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations
us-gaap:BalanceSheetLocation
us-gaap:CustomerRefundLiabilityCurrent
us-gaap:BusinessAcquisition
us-gaap:DebtInstrumentCarryingAmount
us-gaap:StatementGeographical, us-gaap:BusinessAcquisition, us-gaap:CreditFacility, us-gaap:DebtInstrument
us-gaap:StatementGeographical, us-gaap:DebtInstrument, us-gaap:RelatedPartyTransactionsByRelatedParty
us-gaap:CreditFacility
us-gaap:DebtInstrumentInterestRateEffectivePercentage

us-gaap:DeferredIncomeTaxAssetsNet

us-gaap:DeferredIncomeTaxLiabilities
us-gaap:BalanceSheetLocation
us-gaap:DeferredTaxAssetsGross
us-gaap:BalanceSheetLocation
us-gaap:DeferredTaxAssetsInventory
us-gaap:BalanceSheetLocation
us-gaap:DeferredTaxAssetsOperatingLossCarryforwards
us-gaap:BalanceSheetLocation
us-gaap:DeferredTaxAssetsOther
us-gaap:BalanceSheetLocation
us-gaap:DeferredTaxAssetsStateTaxes
us-gaap:BalanceSheetLocation
us-gaap:DeferredTaxAssetsTaxCreditCarryforwards
us-gaap:BalanceSheetLocation
us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment

us-gaap:DeferredTaxLiabilitiesUndistributedForeignEarnings

us-gaap:DefinedBenefitPlanBenefitObligation

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo

us-gaap:DefinedBenefitPlanFairValueOfPlanAssets

us-gaap:DefinedBenefitPlanFundedStatusOfPlan
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities, us-gaap:BalanceSheetLocation, us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:DerivativeAssetFairValueGrossLiability
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities, us-gaap:BalanceSheetLocation, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:HedgingDesignation
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities, us-gaap:BalanceSheetLocation, us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:DerivativeFairValueOfDerivativeAsset
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities, us-gaap:BalanceSheetLocation, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:HedgingDesignation
us-gaap:DerivativeInstrumentRisk
us-gaap:DerivativeInstrumentsAndHedgesLiabilitiesNoncurrent

us-gaap:EmployeeRelatedLiabilitiesCurrent
us-gaap:TitleOfIndividual, us-gaap:AwardType
us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions
us-gaap:BusinessAcquisition
us-gaap:EquityFairValueDisclosure
us-gaap:FinancialInstrument
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue
us-gaap:RegulatoryLiability

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
us-gaap:FiniteLivedIntangibleAssetsGross
us-gaap:IncomeStatementLocation, us-gaap:LiabilityForCatastropheClaimsByCatastrophicEvent
us-gaap:InsuranceSettlementsReceivable
us-gaap:IncomeStatementLocation, us-gaap:LiabilityForCatastropheClaimsByCatastrophicEvent, us-gaap:RelatedPartyTransactionsByRelatedParty

us-gaap:IntangibleAssetsGrossExcludingGoodwill
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:InventoryRawMaterials

us-gaap:InventoryValuationReserves

us-gaap:InventoryWorkInProcess

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FinancialInstrument
us-gaap:LiabilitiesFairValueDisclosure
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:RegulatoryLiability
us-gaap:FinancialInstrument
us-gaap:RegulatoryLiability
dei:LegalEntity, us-gaap:CreditFacility
us-gaap:LineOfCredit
us-gaap:StatementGeographical, us-gaap:BusinessAcquisition, us-gaap:CreditFacility, us-gaap:DebtInstrument
us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity
us-gaap:StatementGeographical, us-gaap:CreditFacility, us-gaap:RelatedPartyTransactionsByRelatedParty
dei:LegalEntity, us-gaap:CreditFacility
us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity
us-gaap:StatementGeographical, us-gaap:CreditFacility, us-gaap:DebtInstrument

us-gaap:LoansPayableToBankCurrent

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo

us-gaap:LongTermLoansFromBank
us-gaap:Ownership
us-gaap:MinorityInterestOwnershipPercentageByNoncontrollingOwners
us-gaap:Ownership
us-gaap:MinorityInterestOwnershipPercentageByParent

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent
us-gaap:IncomeTaxAuthorityName
us-gaap:OperatingLossCarryforwards
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FinancialInstrument
us-gaap:PrepaidExpenseAndOtherAssets
us-gaap:FinancialInstrument
us-gaap:LongTermPurchaseCommitmentByCategoryOfItemPurchased
us-gaap:PurchaseCommitmentRemainingMinimumAmountCommitted
dei:LegalEntity, us-gaap:CreditFacility
us-gaap:SecuredDebt
us-gaap:AwardType
us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueNonvested

us-gaap:TreasuryStockShares
dei:LegalEntity, us-gaap:CreditFacility
us-gaap:UnamortizedDebtIssuanceExpense
us-gaap:DebtInstrument

us-gaap:UndistributedEarningsOfForeignSubsidiaries

Plots across concepts


IncomeStatement
Other Comprehensive Income Loss Net Of Tax
Expenses
Research And Development Expense
Balance Sheet
Operating Lease Right Of Use Asset
Assets
Operating Lease Right Of Use Asset
Current Assets
Prepaid Expense And Other Assets Current
NonCurrent Assets
Other Assets Noncurrent
PropertyPlantAndEquipmentNet
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
Liabilities
Operating Lease Liability
Current Liabilities
Operating Lease Liability Current
Noncurrent Liabilities
Minority Interest
Stockholders Equity
Common Stock Value
CashFlow
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInOperatingActivities
Increase Decrease In Prepaid Deferred Expense And Other Assets
NetCashProvidedByUsedInInvestingActivities
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInFinancingActivities
Net Cash Provided By Used In Financing Activities
Shares
Treasury Stock Shares
OperatingLeaseLiability
Operating Lease Liability Current
LesseeOperatingLeaseLiabilityPaymentsDue
Lessee Operating Lease Liability Payments Due Year Four
FiniteLivedIntangibleAssets
Finite Lived Intangible Assets Accumulated Amortization
InventoryNet
Inventory Finished Goods
AccountsReceivable
Allowance For Doubtful Accounts Receivable Current

Tables

  2021-06-252021-03-262020-09-252020-06-262020-03-272019-06-282019-03-29
us-gaap:CommonStockValue █████▁▁0.10.10.10.10.10.040.04
 us-gaap:SharesIssued us-gaap:StatementEquityComponents us-gaap:CommonStockNA40.640.54.03e-053.99e-0539.53676239.288237
 us-gaap:SharesIssued us-gaap:StatementEquityComponents us-gaap:TreasuryStockNA0.60.66e-076e-076e-076e-07
us-gaap:CommonStockSharesIssued NANANA4.03e-053.99e-05NA39.288237
us-gaap:CommonStockSharesAuthorized NANANA9e-059e-05NA90.0
us-gaap:PreferredStockSharesAuthorized NANANA1e-051e-05NA10.0
us-gaap:CommonStockSharesOutstanding NANANA3.99e-053.99e-05NA39.288237
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding █▄▃▃▃▁▁44.341.641.140.840.739.39939.448
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic █▃▃▃▂▁▁43.340.640.440.139.839.39939.122
us-gaap:EarningsPerShareBasic ▅██▇▄▁▁0.390.620.60.530.24-0.010.02
us-gaap:EarningsPerShareDiluted ▆██▇▄▁▁0.390.60.590.520.23-0.010.02
us-gaap:IncomeLossFromContinuingOperationsPerBasicShare NANA6e-075.3e-072.4e-07-1e-082e-08
us-gaap:IncomeLossFromContinuingOperationsPerDilutedShare NANA5.9e-075.2e-072.3000000000000002e-07-1e-082e-08
  2021-06-252021-03-262020-09-252020-06-262020-03-272019-06-282019-03-29
 Gross Margin us-gaap:ProductOrService us-gaap:Product█▁442.5345.6NA277.9259.4NANA
 Gross Margin us-gaap:ProductOrService us-gaap:Service█▁72.772.0NA66.961.5NANA
 Gross Margin us-gaap:StatementBusinessSegments uctt:SemiconductorProductsAndSolutionsNANA294.4277.9259.4210.39200.245
 Gross Margin us-gaap:StatementBusinessSegments uctt:SemiconductorServicesBusinessNANA68.966.961.554.97759.896
 Operating Margin us-gaap:ProductOrService us-gaap:Product█▁442.5345.6NA277.9259.4NANA
 Operating Margin us-gaap:ProductOrService us-gaap:Service█▁72.772.0NA66.961.5NANA
 Operating Margin us-gaap:StatementBusinessSegments uctt:SemiconductorProductsAndSolutionsNANA294.4277.9259.4210.39200.245
 Operating Margin us-gaap:StatementBusinessSegments uctt:SemiconductorServicesBusinessNANA68.966.961.554.97759.896
  2021-06-252021-03-262020-09-252020-06-262020-03-272019-06-282019-03-29
 TTM Greenblatt ROC _ _▆█▇▆▄▁▁31.940.434.930.822.68.9718.18
  2021-06-252021-03-262020-09-252020-06-262020-03-272019-06-282019-03-29
us-gaap:ComprehensiveIncomeNetOfTax ▆▇█▇▃▁▁20.121.526.422.66.1-1.434-0.271
 us-gaap:CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization us-gaap:ProductOrService us-gaap:Product█▅▄▃▂▁▁367.9283.6243.6229.3214.7181.1174.5
 us-gaap:CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization us-gaap:ProductOrService us-gaap:Service██▇▄▄▁▄47.447.145.141.640.536.140.8
us-gaap:CostOfGoodsAndServicesSold █▅▄▃▂▁▁415.3330.7288.7270.9255.2217.198215.344
us-gaap:CostOfRevenue █▅▄▃▂▁▁415.3330.7288.7270.9255.2217.2215.3
us-gaap:GeneralAndAdministrativeExpense █▃▂▃▃▂▁49.234.730.233.433.929.91127.791
us-gaap:GrossProfit █▆▅▅▄▁▁99.986.974.673.965.748.16944.797
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest ▆█▇▇▄▁▁24.232.629.927.815.02.5812.861
us-gaap:IncomeTaxExpenseBenefit ▇█▅▆▅▃▁6.27.04.85.74.52.8351.507
us-gaap:InterestExpense █▁▂▁▄▇▇7.13.64.13.85.26.76.6
us-gaap:InterestIncomeExpenseNonoperatingNet ▇▃▆█▅▁▂-0.7-4.3-1.10.6-2.7-6.39-5.319
 us-gaap:InterestIncomeExpenseNonoperatingNet us-gaap:BusinessAcquisition uctt:HamLet10.4NANANANANANA
us-gaap:InterestIncomeOperating ▁▁▄▄█▄▄0.10.10.20.20.30.20.2
us-gaap:InterestPaidNet NA4.3NA4.44.86.7245.6
us-gaap:NetIncomeLoss ▆██▇▄▁▁17.125.024.421.39.4-0.2020.605
us-gaap:NetIncomeLossAttributableToNoncontrollingInterest ▇▅▆▆█▁▆0.90.60.70.81.1-0.0520.8
us-gaap:OperatingExpenses █▃▂▂▂▂▁68.046.539.743.143.139.19836.617
us-gaap:OperatingIncomeLoss ▆█▇▆▄▁▁31.940.434.930.822.68.9718.18
us-gaap:OtherComprehensiveIncomeLossNetOfTax █▁▇▆▁▃▄3.0-3.52.01.3-3.3-1.232-0.876
us-gaap:ProfitLoss ▆██▇▄▁▁18.025.625.122.110.5-0.2541.354
us-gaap:ResearchAndDevelopmentExpense █▃▁▂▁▂▁6.14.23.53.83.43.9213.431
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax █▅▄▃▃▁▁515.2417.6363.3344.8320.9265.367260.141
 us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ProductOrService us-gaap:Product█▅▄▃▃▁▁442.5345.6294.4277.9259.4210.4200.2
 us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ProductOrService us-gaap:Service██▆▆▄▁▃72.772.068.966.961.555.059.9
us-gaap:Revenues █▅▄▃▃▁▁515.2417.6363.3344.8320.9265.4260.1
us-gaap:SellingAndMarketingExpense █▃▂▂▁▁▁12.77.66.05.95.85.3665.395
  2021-06-252021-03-262020-09-252020-06-262020-03-272019-06-282019-03-29
  2021-06-252021-03-262020-09-252020-06-262020-03-272019-06-282019-03-29
us-gaap:Assets █▃▁▂▂▁▁1846.71190.61060.31114.81072.21008.9581003.245
us-gaap:Liabilities █▂▁▂▂▁▁1058.0614.0541.8626.6609.4554.47549.716
us-gaap:LiabilitiesAndStockholdersEquity █▃▁▂▂▁▁1846.71190.61060.31114.81072.21008.9581003.245
us-gaap:StockholdersEquity █▄▂▂▁▁▁767.5557.6500.1470.5445.9439.101438.09
  2021-06-252021-03-262020-09-252020-06-262020-03-272019-06-282019-03-29
us-gaap:AssetsCurrent █▃▂▂▂▁▁999.3636.2514.1565.8527.9454.591474.1
us-gaap:CashAndCashEquivalentsAtCarryingValue █▄▂▂▂▁▁451.4264.3176.1214.4208.1168.128154.774
us-gaap:AccountsReceivableNetCurrent █▅▄▄▂▁▂210.4168.0145.5138.9113.298.306110.971
us-gaap:InventoryNet █▂▂▃▂▁▂302.0189.2175.3193.8187.0164.055180.299
us-gaap:InventoryFinishedGoods █▁▁▁▁▂▂56.714.913.213.715.118.07516.935
us-gaap:PrepaidExpenseAndOtherAssetsCurrent █▁▂▂▃▄▅35.514.717.218.719.624.10228.056
  2021-06-252021-03-262020-09-252020-06-262020-03-272019-06-282019-03-29
 us-gaap:NoncurrentAssets us-gaap:StatementGeographical srt:AsiaNA88.483.883.479.180.475.7
 us-gaap:NoncurrentAssets us-gaap:StatementGeographical srt:AsiaPacific111.6NANANANANANA
 us-gaap:NoncurrentAssets us-gaap:StatementGeographical srt:EuropeNA9.68.28.17.83.37.0
 us-gaap:NoncurrentAssets us-gaap:StatementGeographical us-gaap:EMEA46.7NANANANANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType uctt:ComputerEquipmentAndSoftware█▆▅▄▄▂▁48.142.641.839.639.032.8731.274
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:Building█▄▃▁▁▅▃39.536.035.033.533.236.89535.082
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:FurnitureAndFixtures▄▃▂▂▂▁█4.94.54.34.34.44.0885.758
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:Land█▂▁▆▅▆▇4.83.53.24.44.24.2874.524
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:LeaseholdImprovements█▆▄▄▃▂▁53.249.545.745.143.841.10838.678
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:MachineryAndEquipment█▃▂▂▁▁▁115.075.267.064.861.762.15858.173
us-gaap:ConstructionInProgressGross █▅▄▃▂▁▁49.835.128.624.719.016.06214.259
us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment █▇▅▄▃▂▁97.089.175.168.361.953.6147.308
us-gaap:AmortizationOfIntangibleAssets █▁▁▁▁▁▁9.54.94.94.94.95.14.854
us-gaap:PropertyPlantAndEquipmentNet █▂▂▂▁▁▁218.3157.3150.5148.1143.4144.505141.082
us-gaap:Goodwill █▂▂▂▂▂▁257.2171.1171.1171.1171.1166.654150.226
us-gaap:IntangibleAssetsNetExcludingGoodwill █▁▂▂▂▃▃270.5155.6165.5170.4175.4190.5188.653
us-gaap:FiniteLivedIntangibleAssetsNet █▁▂▂▂▃▃261.5146.6156.5161.4166.4181.513179.666
us-gaap:OperatingLeaseRightOfUseAsset █▂▂▂▁▁69.841.738.138.935.634.721NA
us-gaap:OtherAssetsNoncurrent █▄▂▁▁▃▃8.36.45.25.04.95.7436.091
  2021-06-252021-03-262020-09-252020-06-262020-03-272019-06-282019-03-29
us-gaap:AccountsPayableCurrent █▅▂▃▃▁▁231.0164.9111.4140.1129.397.28899.204
 us-gaap:DebtCurrent us-gaap:BusinessAcquisition uctt:HamLetNANANANANANANA
 us-gaap:DebtCurrent us-gaap:BusinessAcquisition uctt:HamLetIsraelCanadaLtdNANANANANANANA
us-gaap:LiabilitiesCurrent █▅▂▄▃▁▁355.0263.1195.3226.9213.0154.969156.693
us-gaap:OperatingLeaseLiabilityCurrent █▂▁▁▃16.012.412.112.113.4NANA
us-gaap:OtherLiabilitiesCurrent ▇█▅▆▆▁▁42.546.933.539.337.019.98518.337
  2021-06-252021-03-262020-09-252020-06-262020-03-272019-06-282019-03-29
us-gaap:LongTermDebt NANANANANANANA
 us-gaap:LongTermDebt us-gaap:DebtInstrument uctt:BankDebt█▁▁594.7267.8280.1NANANANA
us-gaap:DeferredIncomeTaxLiabilitiesNet █▄▁▁45.533.625.225.2NANANA
us-gaap:MinorityInterest █▅▅▄▃▁▁21.219.018.417.716.915.38715.439
us-gaap:OtherLiabilitiesNoncurrent █▄▁▂▂▃▄30.123.617.519.019.121.50122.247
us-gaap:OperatingLeaseLiabilityNoncurrent █▂▂▂▁54.333.931.233.428.8NANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo █▁▂14.49.510.2NANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree █▁▁11.07.17.3NANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour █▁▁8.14.95.0NANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive NANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive NANANANANANANA
  2021-06-252021-03-262020-09-252020-06-262020-03-272019-06-282019-03-29
us-gaap:StockholdersEquity █▄▂▂▁▁▁767.5557.6500.1470.5445.9439.101438.09
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest █▄▂▂▁▁▁788.7576.6518.5488.2462.8454.488453.529
us-gaap:CommonStockValue █████▁▁0.10.10.10.10.10.040.04
us-gaap:AdditionalPaidInCapitalCommonStock █▂▂▁▁▁▁506.1316.3309.2306.0304.0294.932292.487
us-gaap:RetainedEarningsAccumulatedDeficit █▇▄▂▁▁▁260.0242.9195.4171.0149.7150.121150.323
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax █▆▄▂▁▂▃4.61.6-1.3-3.3-4.6-2.655-1.423
us-gaap:TreasuryStockValue ▁▁▁▁▁██3.33.33.33.33.33.3373.337
us-gaap:MinorityInterest █▅▅▄▃▁▁21.219.018.417.716.915.38715.439
us-gaap:StockIssuedDuringPeriodValueNewIssues 192.8NANANANANANA
us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue █▆▄▃▃▁▁3.73.53.23.13.12.92.9
  2021-06-252021-03-262020-09-252020-06-262020-03-272019-06-282019-03-29
us-gaap:NetCashProvidedByUsedInOperatingActivities NA65.6NA17.515.749.91918.098
us-gaap:NetCashProvidedByUsedInInvestingActivities NA0.8NA-7.4-6.7-31.967-4.198
us-gaap:NetCashProvidedByUsedInFinancingActivities NA-1.6NA-3.937.0-2.42-3.126
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect NA64.0NA6.345.613.35410.629
  2021-06-252021-03-262020-09-252020-06-262020-03-272019-06-282019-03-29
us-gaap:IncreaseDecreaseInAccountsPayable NA43.3NA10.6-4.1-4.078-0.626
us-gaap:IncreaseDecreaseInAccountsReceivable NA22.5NA25.30.7-14.1834.182
us-gaap:IncreaseDecreaseInInventories NA8.8NA6.814.7-26.783-5.579
us-gaap:NetCashProvidedByUsedInOperatingActivities NA65.6NA17.515.749.91918.098
us-gaap:NetIncomeLoss ▆██▇▄▁▁17.125.024.421.39.4-0.2020.605
us-gaap:ProfitLoss ▆██▇▄▁▁18.025.625.122.110.5-0.2541.354
us-gaap:ShareBasedCompensation █▆▅▃▃▁▁3.73.53.33.13.12.8642.913
  2021-06-252021-03-262020-09-252020-06-262020-03-272019-06-282019-03-29
us-gaap:NetCashProvidedByUsedInInvestingActivities NA0.8NA-7.4-6.7-31.967-4.198
us-gaap:PaymentsToAcquirePropertyPlantAndEquipment NA6.5NA10.36.71.9064.844
  2021-06-252021-03-262020-09-252020-06-262020-03-272019-06-282019-03-29
us-gaap:NetCashProvidedByUsedInFinancingActivities NA-1.6NA-3.937.0-2.42-3.126
us-gaap:RepaymentsOfLongTermDebt NA8.2NA11.814.523.5268.863
us-gaap:Dividends ▁█0.10.2NANANANANA
  2021-06-252021-03-262020-09-252020-06-262020-03-272019-06-282019-03-29
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:Range,us-gaap:BusinessAcquisition srt:Maximum,uctt:HamLet4.6e-06NANANANANANA
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:Range,us-gaap:BusinessAcquisition srt:Minimum,uctt:HamLet1.8000000000000001e-06NANANANANANA
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:Range,us-gaap:StatementGeographical,us-gaap:DebtInstrument,us-gaap:RelatedPartyTransactionsByRelatedParty srt:Maximum,country:CN,uctt:BankDebt,uctt:CincosXianCleanTechnologyLtdNANANANANANANA
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:Range,us-gaap:StatementGeographical,us-gaap:DebtInstrument,us-gaap:RelatedPartyTransactionsByRelatedParty srt:Minimum,country:CN,uctt:BankDebt,uctt:CincosXianCleanTechnologyLtdNANANANANANANA
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:StatementGeographical,us-gaap:DebtInstrument,us-gaap:RelatedPartyTransactionsByRelatedParty country:CN,uctt:BankDebt,uctt:CincosXianCleanTechnologyLtd██▅▁3.1e-063.1e-061.8999999999999998e-062.4e-08NANANA

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292011-12-302011-09-302011-07-012010-12-31
Value0.10.10.10.10.10.10.10.040.040.040.040.0390.0390.0390.0340.0340.0340.0340.0330.0330.0330.0330.0320.0320.0320.0320.030.030.030.0290.029145144143143142111108107106102
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.054.553.653.053.851.066.861.061.655.059.4

Shares Issued

us-gaap:SharesIssued us-gaap:StatementEquityComponents

us-gaap:SharesIssued

us-gaap:CommonStock


Shares
Period End2021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292016-12-302015-12-252014-12-262013-12-272012-12-282011-12-302010-12-312010-01-012009-01-02
Value4040404.03e-053.99e-05393939393939383833323229282722222121
Percentage of SharesIssued100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TreasuryStock


Shares
Period End2021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282017-12-292016-12-30
Value0.60.60.66e-076e-070.60.66e-076e-070.60.60.6
Percentage of SharesIssued1.51.51.51.51.51.51.50.00.01.51.81.8

Common Stock Shares Issued

us-gaap:CommonStockSharesIssued

us-gaap:CommonStockSharesIssued


Common
Period End2020-12-252020-06-262020-03-272019-12-272019-09-272019-06-292019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012010-12-31
Value404.03e-053.99e-053.99e-053939393939383833333333323232323232313129292929282828282727232322222222
Percentage of CommonStockSharesIssued100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Common Stock Shares Authorized

us-gaap:CommonStockSharesAuthorized

us-gaap:CommonStockSharesAuthorized


Common
Period End2020-12-252020-06-262020-03-272019-12-272019-09-272019-06-292019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012010-12-31
Value909e-059e-059e-059090909090909090909090909090909090909090909090909090909090909090909090
Percentage of CommonStockSharesAuthorized100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Preferred Stock Shares Authorized

us-gaap:PreferredStockSharesAuthorized

us-gaap:PreferredStockSharesAuthorized


Preferred
Period End2020-12-252020-06-262020-03-272019-12-272019-09-272019-06-292019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012010-12-31
Value10000000.010.010.010.010000000.010000000.010000000.010000000.010000000.010000000.010000000.010000000.010000000.010000000.010000000.010000000.010000000.010000000.010000000.010000000.010000000.010000000.010000000.010000000.010000000.010000000.010000000.010000000.010000000.010000000.010000000.010000000.010000000.010000000.010000000.010000000.010000000.010000000.010000000.0
Percentage of PreferredStockSharesAuthorized100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Common Stock Shares Outstanding

us-gaap:CommonStockSharesOutstanding

us-gaap:CommonStockSharesOutstanding


Common
Period End2020-12-252020-06-262020-03-272019-12-272019-09-272019-06-292019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012010-12-31
Value403.99e-053.99e-053.99e-053939393939383833333333323232323232313129292929282827282722232322222222
Percentage of CommonStockSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding


Weighted
Period End2021-06-252021-03-262020-09-252020-06-262020-03-272019-09-272019-06-282019-03-292018-09-282018-06-292018-03-302017-09-292017-06-302017-03-312016-09-232016-06-242016-03-252015-09-252015-06-262015-03-272014-09-262014-06-272014-03-282013-09-272013-06-282013-03-292012-09-282012-06-292012-03-302011-09-302011-07-012011-04-012010-10-012010-07-02
Value44414140404039393839373434333332323231302929292828272723232323232323
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic


Weighted
Period End2021-06-252021-03-262020-09-252020-06-262020-03-272019-09-272019-06-282019-03-292018-09-282018-06-292018-03-302017-09-292017-06-302017-03-312016-09-232016-06-242016-03-252015-09-252015-06-262015-03-272014-09-262014-06-272014-03-282013-09-272013-06-282013-03-292012-09-282012-06-292012-03-302011-09-302011-07-012011-04-012010-10-012010-07-02
Value43404040393939393838363333333232323131302929282828272723232222222121
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareBasic


Earnings
Period End2021-06-252021-03-262020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-302012-09-282012-06-292012-03-312012-03-302011-12-302011-09-302011-07-012011-04-012011-03-312010-12-312010-10-012010-07-02
Value0.390.620.60.530.24-0.260.01-0.010.02-0.04-0.150.490.670.620.590.60.430.310.080.02-0.1-0.50.050.070.040.12-0.180.20.240.230.070.08-0.01-0.04-0.04-0.060.120.20.20.340.140.310.260.260.170.310.26
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareDiluted


Earnings
Period End2021-06-252021-03-262020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-302012-09-282012-06-292012-03-312012-03-302011-12-302011-09-302011-07-012011-04-012011-03-312010-12-312010-10-012010-07-02
Value0.390.60.590.520.23-0.260.01-0.010.02-0.03-0.150.480.660.60.570.590.420.30.080.02-0.1-0.50.050.070.040.12-0.180.20.240.220.070.08-0.01-0.04-0.04-0.060.120.20.20.340.140.30.250.250.160.290.25
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Income Loss From Continuing Operations Per Basic Share

us-gaap:IncomeLossFromContinuingOperationsPerBasicShare

us-gaap:IncomeLossFromContinuingOperationsPerBasicShare


Income
Period End2020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-30
Value0.560.60.530.24-0.170.01-0.010.02-0.03-0.150.490.67
Percentage of IncomeLossFromContinuingOperationsPerBasicShare100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Income Loss From Continuing Operations Per Diluted Share

us-gaap:IncomeLossFromContinuingOperationsPerDilutedShare

us-gaap:IncomeLossFromContinuingOperationsPerDilutedShare


Income
Period End2020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-30
Value0.550.590.520.23-0.170.01-0.010.02-0.03-0.150.480.66
Percentage of IncomeLossFromContinuingOperationsPerDilutedShare100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Comprehensive Income Net Of Tax

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTax


Comprehensive
Period End2021-06-252021-03-262020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-26
Value202126226.1-7.214-1.181-1.434-0.271-1.074-6.8941824212021149.4932.7110.662-3.179-15.7861.6562.2071.1733.532-5.262
Percentage of ComprehensiveIncomeNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestIncomeOperating20100.021500.013200.011300.02033.30.00.0-717.0-135.50.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Cost Of Goods And Service Excluding Depreciation Depletion And Amortization

us-gaap:CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization us-gaap:ProductOrService

us-gaap:CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization

us-gaap:Product


Cost
Period End2021-06-252021-03-262020-09-252020-06-262020-03-272019-09-272019-06-282019-03-29
Value367283243229214170181174
Percentage of CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestIncomeOperating367900.0283600.0121800.0114650.071566.70.090550.087250.0
Percentage of InterestIncomeOperating us-gaap:Product0.00.00.00.00.00.00.00.0

us-gaap:Service


Cost
Period End2021-06-252021-03-262020-09-252020-06-262020-03-272019-09-272019-06-282019-03-29
Value4747454140363640
Percentage of CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization12.916.618.518.118.921.619.923.4
Percentage of InterestIncomeOperating47400.047100.022550.020800.013500.00.018050.020400.0
Percentage of InterestIncomeOperating us-gaap:Service0.00.00.00.00.00.00.00.0

Cost Of Goods And Services Sold

us-gaap:CostOfGoodsAndServicesSold

us-gaap:CostOfGoodsAndServicesSold


Cost
Period End2021-06-252021-03-262020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-09-292017-06-30
Value415330288270255230206217215211199244266199184
Percentage of CostOfGoodsAndServicesSold100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestIncomeOperating415300.0330700.0144350.0135450.085066.70.00.0108599.0107672.00.00.00.00.00.00.0

Cost Of Revenue

us-gaap:CostOfRevenue

us-gaap:CostOfRevenue


Cost
Period End2021-06-252021-03-262020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-09-292017-06-30
Value415330288270255230206217215211199244266199184
Percentage of CostOfRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestIncomeOperating415300.0330700.0144350.0135450.085066.70.00.0108600.0107650.00.00.00.00.00.00.0

General And Administrative Expense

us-gaap:GeneralAndAdministrativeExpense

us-gaap:GeneralAndAdministrativeExpense


General
Period End2021-06-252021-03-262020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-10-012010-07-02
Value493430333342292927262616151513121111111010111010119.0559.9718.7039.7229.4288.4718.5229.62610106.3846.2435.2745.6116.0455.7035.5095.3594.941
Percentage of GeneralAndAdministrativeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestIncomeOperating49200.034700.015100.016700.011300.00.00.014955.513895.50.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Gross Profit

us-gaap:GrossProfit

us-gaap:GrossProfit


Gross
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-302012-09-282012-06-292012-03-312012-03-302011-12-302011-09-302011-07-012011-04-012011-03-312010-12-312010-10-012010-07-02
Value998677747365564748444534464844424337292319141318181918102123211516131114141415159.59512181717141714
Percentage of GrossProfit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestIncomeOperating0.086900.00.037300.036950.021900.00.00.024084.522398.50.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:GrossProfit us-gaap:ProductOrService

us-gaap:Product


Gross
Period End2021-06-252021-03-262020-06-262020-03-27
Value74624844
Percentage of GrossProfit74.771.365.868.0
Percentage of InterestIncomeOperating0.062000.024300.014900.0
Percentage of InterestIncomeOperating us-gaap:Product0.00.00.00.0

us-gaap:Service


Gross
Period End2021-06-252021-03-262020-06-262020-03-27
Value25242521
Percentage of GrossProfit25.328.734.232.0
Percentage of InterestIncomeOperating0.024900.012650.07000.0
Percentage of InterestIncomeOperating us-gaap:Service0.00.00.00.0

us-gaap:GrossProfit us-gaap:StatementBusinessSegments

uctt:SemiconductorProductsAndSolutions


Gross
Period End2020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-30
Value5048443629292527274648
Percentage of GrossProfit68.165.868.065.662.960.957.360.279.5100.0100.0
Percentage of InterestIncomeOperating25400.024300.014900.00.00.014658.512840.50.00.00.00.0
Percentage of InterestIncomeOperating uctt:SemiconductorProductsAndSolutions0.00.00.00.00.00.00.00.00.00.00.0

uctt:SemiconductorServicesBusiness


Gross
Period End2020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-28
Value23252119171819187.178
Percentage of GrossProfit31.934.232.034.537.139.142.739.920.5
Percentage of InterestIncomeOperating11900.012650.07000.00.00.09426.09558.00.00.0
Percentage of InterestIncomeOperating uctt:SemiconductorServicesBusiness0.00.00.00.00.00.00.00.00.0

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

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest


Income
Period End2021-06-252021-03-262020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-27
Value2432292715-7.9084.7662.5812.8615.023-1.844212721232318125.3642.883-1.789-3.4772.3233.0691.6924.592-4.47.607
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestIncomeOperating24200.032600.014950.013900.05000.00.00.01290.51430.50.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxExpenseBenefit


Income
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-302012-09-282012-06-292012-03-312012-03-302011-12-302011-09-302011-07-012011-04-012011-03-312010-12-312010-10-012010-07-02
Value6.27.04.34.85.74.51.783.8782.8351.5075.3354.5962.8952.4930.733.5273.1064.4942.5362.752.161.45120.6470.8620.5191.060.8621.5751.4761.2440.3750.581-0.025-0.398-0.356-0.5391.6581.5021.502-6.3410.882.1681.9991.9991.7331.5920.77
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestIncomeOperating0.00.00.02400.02850.01500.00.00.01417.5753.50.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Interest Expense

us-gaap:InterestExpense

us-gaap:InterestExpense


Interest
Period End2021-06-252021-03-262020-09-252020-06-262020-03-272019-09-272019-06-282019-03-29
Value7.13.64.13.85.26.66.76.6
Percentage of InterestExpense100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestIncomeOperating7100.03600.02050.01900.01733.30.03350.03300.0

Interest Income Expense Nonoperating Net

us-gaap:InterestIncomeExpenseNonoperatingNet

us-gaap:InterestIncomeExpenseNonoperatingNet


Interest
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-28
Value-0.7-4.3-6.3-1.10.6-2.712-3.492-6.39-5.319-5.187-2.766-0.8090.326-0.378-0.019-1.12-0.938-0.181-1.336-0.836-1.091-0.163-0.756-0.359-0.956-0.334-0.437-0.452-0.629
Percentage of InterestIncomeExpenseNonoperatingNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestIncomeOperating-700.0-4300.00.0-550.0300.0-900.00.00.0-3195.0-2659.50.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:InterestIncomeExpenseNonoperatingNet us-gaap:BusinessAcquisition

uctt:HamLet


Interest
Period End2021-06-25
Value10
Percentage of InterestIncomeExpenseNonoperatingNet-1485.7
Percentage of InterestIncomeOperating10400.0
Percentage of InterestIncomeOperating uctt:HamLet0.0

Interest Income Operating

us-gaap:InterestIncomeOperating

us-gaap:InterestIncomeOperating


Interest
Period End2021-06-252021-03-262020-09-252020-06-262020-03-272019-06-282019-03-29
Value100000.0100000.0200000.0200000.0300000.0200000.0200000.0
Percentage of InterestIncomeOperating100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestIncomeOperating100.0100.0100.0100.0100.0100.0100.0

Interest Paid Net

us-gaap:InterestPaidNet

us-gaap:InterestPaidNet


Interest
Period End2021-03-262020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-10-01
Value4.34.44.87.1644.1126.7245.64.1952.0090.5070.435-1.1931.151.7080.5510.5850.6140.6140.6920.3870.5450.5420.6890.410.5010.560.5640.4490.6420.4210.7260.7510.6330.0370.130.1780.2640.2810.3350.3040.218
Percentage of InterestPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestIncomeOperating4300.02200.01600.00.00.03362.02800.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-302012-09-282012-06-292012-03-312012-03-302011-12-302011-09-302011-07-012011-04-012011-03-312010-12-312010-10-012010-07-02
Value17252224219.4-10.30.513-0.2020.605-1.1-5.9971824201920149.9532.6140.723-3.239-15.7881.6762.2071.1733.532-5.2626.0327.0566.3712.0482.316-0.311-1.729-1.124-1.7012.794.664.667.8013.1556.9585.825.823.8966.6975.654
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestIncomeOperating17100.025000.00.012200.010650.03133.30.00.0-101.0302.50.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Net Income Loss Attributable To Noncontrolling Interest

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest


Net
Period End2021-06-252021-03-262020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-28
Value900000.0600000.0700000.0800000.01100000.0628000.0375000.0-52000.0800000.0843000.0-443000.0
Percentage of NetIncomeLossAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestIncomeOperating900.0600.0350.0400.0366.70.00.0-26.0400.00.00.0

Operating Expenses

us-gaap:OperatingExpenses

us-gaap:OperatingExpenses


Operating
Period End2021-06-252021-03-262020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-302012-09-282012-06-292012-03-312012-03-302011-12-302011-09-302011-07-012011-04-012011-03-312010-12-312010-10-012010-07-02
Value6846394343513939363534232122191817171615151615151713141314131212131214159.7929.3939.3938.0398.5429.59.3659.3659.0098.6758.226
Percentage of OperatingExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestIncomeOperating68000.046500.019850.021550.014366.70.00.019599.018308.50.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Operating Income Loss

us-gaap:OperatingIncomeLoss

us-gaap:OperatingIncomeLoss


Operating
Period End2021-06-252021-03-262020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-302012-09-282012-06-292012-03-312012-03-302011-12-302011-09-302011-07-012011-04-012011-03-312010-12-312010-10-012010-07-02
Value31403430224.4918.2588.9718.18100.922222621232419126.73.719-0.698-3.3143.0793.4282.6484.926-3.9638.0599.1618.2683.3913.6270.621-1.411-0.666-1.4274.4626.2676.2671.5564.319.4938.1878.1875.7628.5266.569
Percentage of OperatingIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestIncomeOperating0.040400.017450.015400.07533.30.00.04485.54090.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingIncomeLoss us-gaap:ProductOrService

us-gaap:Product


Operating
Period End2021-06-252021-03-262020-06-262020-03-27
Value24342420
Percentage of OperatingIncomeLoss75.284.778.989.8
Percentage of InterestIncomeOperating0.034200.012150.06766.7
Percentage of InterestIncomeOperating us-gaap:Product0.00.00.00.0

us-gaap:Service


Operating
Period End2021-06-252021-03-262020-06-262020-03-27
Value7.96.26.52.3
Percentage of OperatingIncomeLoss24.815.321.110.2
Percentage of InterestIncomeOperating0.06200.03250.0766.7
Percentage of InterestIncomeOperating us-gaap:Service0.00.00.00.0

us-gaap:OperatingIncomeLoss us-gaap:StatementBusinessSegments

uctt:SemiconductorProductsAndSolutions


Operating
Period End2020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-30
Value2724200.2457.3636.3684.3243.1950.4672226
Percentage of OperatingIncomeLoss78.578.989.85.589.271.052.931.350.7100.0100.0
Percentage of InterestIncomeOperating13700.012150.06766.70.00.03184.02162.00.00.00.00.0
Percentage of InterestIncomeOperating uctt:SemiconductorProductsAndSolutions0.00.00.00.00.00.00.00.00.00.00.0

uctt:SemiconductorServicesBusiness


Operating
Period End2020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-28
Value7.56.52.34.2460.8952.6033.8567.0111.389
Percentage of OperatingIncomeLoss21.521.110.294.510.829.047.168.7150.7
Percentage of InterestIncomeOperating3750.03250.0766.70.00.01301.51928.00.00.0
Percentage of InterestIncomeOperating uctt:SemiconductorServicesBusiness0.00.00.00.00.00.00.00.00.0

Other Comprehensive Income Loss Net Of Tax

us-gaap:OtherComprehensiveIncomeLossNetOfTax

us-gaap:OtherComprehensiveIncomeLossNetOfTax


Other
Period End2021-06-252021-03-262020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-09-282018-06-292018-03-30
Value3000000.0-3500000.02000000.01300000.0-3300000.03100000.0-1694000.0-1232000.0-876000.0-455000.0-894000.0-541000.0
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestIncomeOperating0.00.01000.0650.0-1100.00.00.0-616.0-438.00.00.00.0

us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-06-252021-03-262020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-09-282018-06-292018-03-30
Value3000000.0-3500000.02000000.01300000.0-3300000.03100000.0-1694000.0-1232000.0-876000.0-455000.0-894000.0-541000.0
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestIncomeOperating0.00.01000.0650.0-1100.00.00.0-616.0-438.00.00.00.0
Percentage of InterestIncomeOperating us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Parent


Other
Period End2021-06-252021-03-262020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-29
Value3000000.0-3500000.02000000.01300000.0-3300000.03100000.0-1700000.0-1200000.0-900000.0
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.497.4102.7
Percentage of InterestIncomeOperating0.00.01000.0650.0-1100.00.00.0-600.0-450.0
Percentage of InterestIncomeOperating us-gaap:Parent0.00.00.00.00.00.00.00.00.0

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-09-29
Value182522252210-9.6880.888-0.2541.354-0.312-6.44182419
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestIncomeOperating0.00.00.012550.011050.03500.00.00.0-127.0677.00.00.00.00.00.0

us-gaap:ProfitLoss us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest


Profit
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-09-28
Value0.90.60.20.70.81.10.60.375-0.0520.749-0.443
Percentage of ProfitLoss5.02.30.92.83.610.5-6.242.220.555.36.9
Percentage of InterestIncomeOperating0.00.00.0350.0400.0366.70.00.0-26.0374.50.0
Percentage of InterestIncomeOperating us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Parent


Profit
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-29
Value17252224219.4-10.30.5-0.20.6
Percentage of ProfitLoss95.097.799.197.296.489.5106.356.378.744.3
Percentage of InterestIncomeOperating0.00.00.012200.010650.03133.30.00.0-100.0300.0
Percentage of InterestIncomeOperating us-gaap:Parent0.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Profit
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-09-282018-06-292018-03-30
Value17252224219.4-10.30.513-0.2020.605-5.9971824
Percentage of ProfitLoss95.097.799.197.296.489.5106.357.879.544.793.1100.0100.0
Percentage of InterestIncomeOperating0.00.00.012200.010650.03133.30.00.0-101.0302.50.00.00.0
Percentage of InterestIncomeOperating us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.0

Research And Development Expense

us-gaap:ResearchAndDevelopmentExpense

us-gaap:ResearchAndDevelopmentExpense


Research
Period End2021-06-252021-03-262020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-10-012010-07-02
Value6.14.23.53.83.43.6143.6343.9213.4314.0593.2842.9153.0293.2642.7222.7742.9062.8182.4472.3592.2762.2592.3522.4012.5661.6961.8061.7981.7671.3871.411.4891.2571.1181.3091.2881.4061.2621.2521.4371.6051.5361.4551.39
Percentage of ResearchAndDevelopmentExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestIncomeOperating6100.04200.01750.01900.01133.30.00.01960.51715.50.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Revenue From Contract With Customer Excluding Assessed Tax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax


Revenue
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-302012-09-282012-06-292012-03-312012-03-302011-12-302011-09-302011-07-012011-04-012011-03-312010-12-312010-10-012010-07-02
Value5154173693633443202862542652602572342903142482422282041741461291121031221171251201171321441261071101009010010010111011086105133126126120118105
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestIncomeOperating0.0417600.00.0181650.0172400.0106966.70.00.0132683.5130070.50.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:BusinessAcquisition

uctt:HamLet


Revenue
Period End2021-06-25
Value58
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.3
Percentage of InterestIncomeOperating58200.0
Percentage of InterestIncomeOperating uctt:HamLet0.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService

us-gaap:Product


Revenue
Period End2021-06-252021-03-262020-09-252020-06-262020-03-272019-09-272019-06-282019-03-292018-06-292018-03-30
Value442345294277259200210200290314
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax85.982.881.080.680.878.679.377.0100.0100.0
Percentage of InterestIncomeOperating0.0345600.0147200.0138950.086466.70.0105195.0100122.50.00.0
Percentage of InterestIncomeOperating us-gaap:Product0.00.00.00.00.00.00.00.00.00.0

us-gaap:Service


Revenue
Period End2021-06-252021-03-262020-09-252020-06-262020-03-272019-09-272019-06-282019-03-29
Value7272686661545459
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax14.117.219.019.419.221.420.723.0
Percentage of InterestIncomeOperating0.072000.034450.033450.020500.00.027488.529948.0
Percentage of InterestIncomeOperating us-gaap:Service0.00.00.00.00.00.00.00.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:StatementBusinessSegments

uctt:SemiconductorProductsAndSolutions


Revenue
Period End2020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-30
Value294277259230200210200198211290314
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax81.080.680.880.478.679.377.077.390.4100.0100.0
Percentage of InterestIncomeOperating147200.0138950.086466.70.00.0105195.0100122.50.00.00.00.0
Percentage of InterestIncomeOperating uctt:SemiconductorProductsAndSolutions0.00.00.00.00.00.00.00.00.00.00.0

uctt:SemiconductorServicesBusiness


Revenue
Period End2020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-28
Value686661565454595822
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax19.019.419.219.621.420.723.022.79.6
Percentage of InterestIncomeOperating34450.033450.020500.00.00.027488.529948.00.00.0
Percentage of InterestIncomeOperating uctt:SemiconductorServicesBusiness0.00.00.00.00.00.00.00.00.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:StatementGeographical

country:AT


Revenue
Period End2021-06-252021-03-262020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-30
Value2018141314139.67610149.904181613
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.04.54.03.84.54.73.83.95.53.87.85.64.3
Percentage of InterestIncomeOperating20600.018700.07350.06500.04833.30.00.05154.07137.50.00.00.00.0
Percentage of InterestIncomeOperating country:AT0.00.00.00.00.00.00.00.00.00.00.00.00.0

country:CN


Revenue
Period End2021-06-252021-03-262020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-29
Value251612129.17.1937.677128.0081111162.166116.8345.166121.5596.9611.1853.4473.1971.0175.288111116181714109.6814.752
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.93.83.53.52.82.53.04.73.14.45.05.80.74.82.82.36.30.94.80.93.13.10.84.59.59.913.714.212.211.29.88.84.7
Percentage of InterestIncomeOperating25400.016000.06300.06000.03033.30.00.06211.04004.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of InterestIncomeOperating country:CN0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

country:KR


Revenue
Period End2021-06-252021-03-262020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-03-30
Value362621212016151718229.7948.351
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.16.45.86.26.35.86.16.77.18.64.22.7
Percentage of InterestIncomeOperating36700.026600.010550.010650.06766.70.00.08866.59193.00.00.00.0
Percentage of InterestIncomeOperating country:KR0.00.00.00.00.00.00.00.00.00.00.00.0

country:SG


Revenue
Period End2021-06-252021-03-262020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-29
Value182153132119112896875686762821028073736060394332252929181113131723171110
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax35.436.736.434.735.031.426.828.626.226.126.728.632.632.330.332.329.434.726.933.429.125.024.424.814.59.611.39.812.218.816.410.910.5
Percentage of InterestIncomeOperating182500.0153300.066100.059800.037400.00.00.037940.534136.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of InterestIncomeOperating country:SG0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

country:TW


Revenue
Period End2021-06-252021-03-262020-09-252020-06-262020-03-272019-09-272019-06-282019-03-29
Value232018151511108.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.54.85.04.44.74.54.03.4
Percentage of InterestIncomeOperating23100.020200.09150.07500.05066.70.05350.04450.0
Percentage of InterestIncomeOperating country:TW0.00.00.00.00.00.00.00.0

country:US


Revenue
Period End2021-06-252021-03-262020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-29
Value187172155155142139136133137134123159184139138129104918367656082798989829410586768483
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax36.441.342.845.044.448.853.550.152.852.352.854.958.756.157.256.751.052.257.052.358.758.967.368.071.474.970.371.073.468.871.377.182.8
Percentage of InterestIncomeOperating187300.0172600.077800.077550.047533.30.00.066500.068627.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of InterestIncomeOperating country:US0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

uctt:ISR


Revenue
Period End2021-06-252020-06-26
Value5.44.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.01.2
Percentage of InterestIncomeOperating5400.02100.0
Percentage of InterestIncomeOperating uctt:ISR0.00.0

uctt:OtherGeographicalAreas


Revenue
Period End2021-06-252021-03-262020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-28
Value34108.88.87.0-24.779171613-11.34617143.382-21.827171115-2.0028.5938.0871.7575.944.083.135.6556.6875.4196.5253.2591.582.6723.564
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.62.42.42.62.2-8.76.76.05.4-4.47.65.11.1-8.87.25.07.7-1.15.96.21.65.73.32.74.55.64.64.92.31.32.53.2
Percentage of InterestIncomeOperating34200.010200.04400.04400.02333.30.00.08011.56973.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of InterestIncomeOperating uctt:OtherGeographicalAreas0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Revenue From Contract With Customer Including Assessed Tax

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ProductOrService

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax

us-gaap:Product


Revenue
Period End2021-06-252021-03-262020-09-252020-06-262020-03-272019-09-272019-06-282019-03-29
Value442345294277259200210200
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestIncomeOperating442500.0345600.0147200.0138950.086466.70.0105200.0100100.0
Percentage of InterestIncomeOperating us-gaap:Product0.00.00.00.00.00.00.00.0

us-gaap:Service


Revenue
Period End2021-06-252021-03-262020-09-252020-06-262020-03-272019-09-272019-06-282019-03-29
Value7272686661545559
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax16.420.823.424.123.727.126.129.9
Percentage of InterestIncomeOperating72700.072000.034450.033450.020500.00.027500.029950.0
Percentage of InterestIncomeOperating us-gaap:Service0.00.00.00.00.00.00.00.0

Revenues

us-gaap:Revenues

us-gaap:Revenues


Revenues
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-302012-09-282012-06-292012-03-312012-03-302011-12-302011-09-302011-07-012011-04-012011-03-312010-12-312010-10-012010-07-02
Value5154173693633443202862542652602572342903142482422282041741461291121031221171251201171321441261071101009010010010111011086105133126126120118105
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestIncomeOperating0.0417600.00.0181650.0172400.0106966.70.00.0132700.0130050.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Selling And Marketing Expense

us-gaap:SellingAndMarketingExpense

us-gaap:SellingAndMarketingExpense


Selling
Period End2021-06-252021-03-262020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-10-012010-07-02
Value127.66.05.95.85.7625.8775.3665.3955.0323.8393.633.8053.6843.6623.3513.0513.0312.8192.7852.9333.0052.8442.8052.8452.6862.4932.5922.6612.4872.5612.4652.3191.8181.8051.6661.7441.5031.6792.0182.0571.9641.8611.895
Percentage of SellingAndMarketingExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestIncomeOperating12700.07600.03000.02950.01933.30.00.02683.02697.50.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Assets

us-gaap:Assets

us-gaap:Assets


Assets
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012010-12-31
Value184611901102106011141072101999210081003965986643680563500453423380352358345336356341342296284303312292267269270265278166193178174193172
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets us-gaap:ProductOrService

us-gaap:Product


Assetsus-gaap:
Period End2021-06-252021-03-262020-12-252020-06-26
Value1597950868868
Percentage of Assets86.579.878.877.9
Percentage of Assets86.579.878.877.9
Percentage of Assets us-gaap:Product100.0100.0100.0100.0

us-gaap:Service


Assetsus-gaap:
Period End2021-06-252021-03-262020-12-252020-06-26
Value249240234234
Percentage of Assets13.520.221.221.0
Percentage of Assets13.520.221.221.0
Percentage of Assets us-gaap:Service100.0100.0100.0100.0

us-gaap:Assets us-gaap:StatementBusinessSegments

uctt:SemiconductorProductsAndSolutions


Assetsus-gaap:
Period End2020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-29
Value868831899872828817819591571802802
Percentage of Assets78.878.480.781.381.282.381.358.959.281.4124.7
Percentage of Assets78.878.480.781.381.282.381.358.959.281.4124.7
Percentage of Assets uctt:SemiconductorProductsAndSolutions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

uctt:SemiconductorServicesBusiness


Assetsus-gaap:
Period End2020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-29
Value234228215200191175188412394162162
Percentage of Assets21.221.619.318.718.817.718.741.140.816.525.3
Percentage of Assets21.221.619.318.718.817.718.741.140.816.525.3
Percentage of Assets uctt:SemiconductorServicesBusiness100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Liabilities

us-gaap:Liabilities

us-gaap:Liabilities


Liabilities
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012010-12-31
Value1058614551541626609566536554549514539204261263224199191164147158147135141132137107100114131120103109113109121387061668985
Percentage of Liabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets57.351.650.051.156.256.855.654.055.054.853.354.731.838.446.744.743.945.243.241.844.142.640.239.738.940.036.335.537.841.941.238.940.642.141.043.523.136.434.238.146.349.4

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:LiabilitiesAndStockholdersEquity


Liabilities
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012010-12-31
Value184611901102106011141072101999210081003965986643680563500453423380352358345336356341342296284303312292267269270265278166193178174193172
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012010-12-312010-01-012009-01-02
Value767557532500470445436440439438436434439419300276254231216204200198200214208205188183189181171163160156156157128122117108104876178
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets41.646.848.347.242.241.642.844.443.543.745.244.168.261.653.355.356.154.856.858.255.957.459.860.361.160.063.764.562.258.158.861.159.457.959.056.576.963.665.861.953.750.60.00.0

Assets Current

us-gaap:AssetsCurrent

us-gaap:AssetsCurrent


Assets
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012010-12-31
Value999636545514565527467442454474462484483521407350307279237209214200190205211211208198214222200173173172165176143169154155174154
Percentage of AssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets54.153.449.448.550.849.245.844.645.147.347.949.175.176.572.370.067.865.962.459.359.858.056.657.761.861.670.469.770.771.268.564.764.663.762.163.486.387.786.488.689.889.3

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashAndCashEquivalentsAtCarryingValue


Cash
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-292016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-07-032012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-10-012010-07-022010-01-012009-01-02
Value45126420017621420816215816815414416014116268655954524744455059766978756974606571645458455154523737353427232629
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets24.422.218.216.619.219.415.916.016.715.414.916.321.923.812.113.213.113.00.013.412.313.214.916.822.420.326.726.422.823.720.724.726.524.020.421.00.030.728.329.321.719.40.020.00.00.00.00.0

Accounts Receivable Net Current

us-gaap:AccountsReceivableNetCurrent

us-gaap:AccountsReceivableNetCurrent


Accounts
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012010-12-31
Value210168145145138113112110981101069598839010710194746573665957576961576772674947495047414841475754
Percentage of AccountsReceivableNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets11.414.113.213.712.510.611.111.19.711.111.19.615.312.316.021.522.422.419.618.720.419.317.616.216.820.320.920.222.423.123.118.617.518.318.817.125.125.323.027.329.831.6

Inventory Net

us-gaap:InventoryNet

us-gaap:InventoryNet


Inventory
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012010-12-31
Value3021891801751931871721531641801861982282612361651391231038990817275645956556767635048515363446055596959
Percentage of InventoryNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets16.415.916.416.517.417.416.915.516.318.019.320.135.538.542.033.030.829.127.325.325.223.721.621.218.917.519.219.522.121.621.918.818.118.920.322.726.631.631.133.936.034.3

Inventory Finished Goods

us-gaap:InventoryFinishedGoods

us-gaap:InventoryFinishedGoods


Inventory
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292011-12-30
Value56141313131514141816131913219.5577.525.9495.4689.146.7857.1475.1634.5614.1114.7223.5813.9222.6965.8395.1671.8152.0983.4661.3412.3494.5852.3073.486
Percentage of InventoryFinishedGoods100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.11.31.21.21.21.41.51.51.81.71.41.92.13.11.71.51.31.32.41.92.01.51.41.21.41.01.30.91.91.70.60.81.30.50.91.61.42.0

Prepaid Expense And Other Assets Current

us-gaap:PrepaidExpenseAndOtherAssetsCurrent

us-gaap:PrepaidExpenseAndOtherAssetsCurrent


Prepaid
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-06-302010-12-312009-12-31
Value351418171819192024282530151312116.8296.2216.4616.9416.8916.5178.1728.5228.6348.0947.0066.3896.2594.7114.5817.0656.8386.6423.9137.4066.3644.7673.449108.95.9353.2
Percentage of PrepaidExpenseAndOtherAssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.91.21.71.61.71.81.92.02.42.82.73.12.31.92.12.31.51.51.72.01.91.92.42.42.52.42.42.22.11.51.62.62.52.51.52.73.82.51.95.80.03.40.0

Noncurrent Assets

us-gaap:NoncurrentAssets us-gaap:StatementGeographical

us-gaap:NoncurrentAssets

srt:Asia


Noncurrent
Period End2021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-09-282018-06-292018-03-302017-09-292017-06-30
Value8890838379817780757810.0109.96.5
Percentage of NoncurrentAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets7.48.27.97.57.48.07.88.07.58.01.61.62.01.4
Percentage of Assets srt:Asia0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

srt:AsiaPacific


Noncurrent
Period End2021-06-25
Value111
Percentage of NoncurrentAssets0.0
Percentage of Assets6.0
Percentage of Assets srt:AsiaPacific0.0

srt:Europe


Noncurrent
Period End2021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-09-28
Value9.69.48.28.17.83.36.63.37.02.6
Percentage of NoncurrentAssets10.910.49.89.79.94.18.54.19.23.3
Percentage of Assets0.80.90.80.70.70.30.70.30.70.3
Percentage of Assets srt:Europe0.00.00.00.00.00.00.00.00.00.0

us-gaap:EMEA


Noncurrent
Period End2021-06-25
Value46
Percentage of NoncurrentAssets0.0
Percentage of Assets2.5
Percentage of Assets us-gaap:EMEA0.0

Property Plant And Equipment Gross

us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType

us-gaap:PropertyPlantAndEquipmentGross

uctt:ComputerEquipmentAndSoftware


Property
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-12-202017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292011-12-30
Value484242413939323232313129111111111111111111111010109.6399.4069.2999.2288.8558.4228.289.2168.4798.3678.1488.5067.1057.089
Percentage of PropertyPlantAndEquipmentGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.63.63.93.93.63.63.13.33.33.13.23.01.81.72.10.02.32.52.62.93.33.23.23.13.12.82.73.13.22.92.72.83.43.13.13.13.14.34.0
Percentage of Assets uctt:ComputerEquipmentAndSoftware0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Building


Property
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-28
Value393637353333363636353224
Percentage of PropertyPlantAndEquipmentGross82.184.587.583.784.685.1115.0111.0112.2112.2102.983.7
Percentage of Assets2.13.03.43.33.03.13.63.73.73.53.32.5
Percentage of Assets us-gaap:Building0.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:FurnitureAndFixtures


Property
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-12-202017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292011-12-30
Value4.94.54.44.34.34.44.44.3564.0885.7585.7643.8733.3553.333.3183.3183.1393.1163.1193.1183.2133.2023.1873.2016.0762.7082.6452.5822.5292.4672.4722.4112.511.6081.6941.6822.3061.5841.761
Percentage of PropertyPlantAndEquipmentGross10.210.610.410.310.911.313.713.212.418.418.413.328.328.128.428.427.227.027.928.028.028.129.231.155.328.128.127.827.427.929.429.127.219.020.220.627.122.324.8
Percentage of Assets0.30.40.40.40.40.40.40.40.40.60.60.40.50.50.60.00.60.70.70.80.90.90.91.01.70.80.80.90.90.80.80.80.90.60.60.60.80.91.0
Percentage of Assets us-gaap:FurnitureAndFixtures0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Land


Property
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-28
Value4.83.53.83.24.44.24.83.7744.2874.5244.72714
Percentage of PropertyPlantAndEquipmentGross10.08.28.97.711.110.815.011.413.014.515.148.1
Percentage of Assets0.30.30.30.30.40.40.50.40.40.50.51.4
Percentage of Assets us-gaap:Land0.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:LeaseholdImprovements


Property
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-12-202017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292011-12-30
Value534946454543414441383838242322231919181617181716121515121010101013101010101010
Percentage of PropertyPlantAndEquipmentGross110.6116.2109.9109.3113.9112.3130.2134.5125.1123.7123.2131.4202.5200.2195.7198.6167.1165.4164.7151.2150.0158.8160.0156.4117.0159.1161.2138.2116.3123.8126.7127.8149.4124.3121.3123.9127.3152.8153.2
Percentage of Assets2.94.24.24.34.04.14.14.54.13.94.03.93.73.54.10.03.94.24.34.44.95.15.04.83.64.54.44.33.83.63.43.65.23.93.83.83.96.56.1
Percentage of Assets us-gaap:LeaseholdImprovements0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:MachineryAndEquipment


Property
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-12-202017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292011-12-30
Value1157573676461586362585754202019191918171717161616151312109.5849.239.2829.249158.5678.4868.597108.7819.282
Percentage of PropertyPlantAndEquipmentGross239.1176.5173.6160.3163.6158.2181.0191.1189.1186.0183.8187.8172.6169.7169.5169.5166.4160.9160.5152.8148.6147.9150.7157.7140.7140.4135.0115.9103.9104.2110.2111.7169.7101.0101.4105.5119.8123.6130.9
Percentage of Assets6.26.36.76.35.85.85.76.36.25.86.05.53.23.03.50.03.84.14.24.54.84.74.74.84.34.03.73.63.43.03.03.25.83.23.13.23.75.35.2
Percentage of Assets us-gaap:MachineryAndEquipment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Construction In Progress Gross

us-gaap:ConstructionInProgressGross

us-gaap:ConstructionInProgressGross


Construction
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-12-202017-09-292017-06-302017-03-312016-12-30
Value49353428241923171614151020171313137.6185.4024.576
Percentage of ConstructionInProgressGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.72.93.22.72.21.82.31.71.61.41.61.03.12.62.40.02.61.71.31.2

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment


Accumulated
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-12-202017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292011-12-30
Value978984756861565853474241403938383736353332313028282625242423222132201919211918
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets5.37.57.67.16.15.85.65.95.34.74.44.26.45.86.90.07.58.08.38.99.38.88.78.58.07.77.48.38.47.77.27.512.17.77.47.27.911.710.6

Amortization Of Intangible Assets

us-gaap:AmortizationOfIntangibleAssets

us-gaap:AmortizationOfIntangibleAssets


Amortization
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-30
Value9.54.95.04.94.94.95.15.15.14.8544.9732.41.21.0981.7441.21.21.2311.441.41.41.442.171.61.41.1371.2211.21.21.2211.5271.51.51.4991.9491.80.00.0
Percentage of AmortizationOfIntangibleAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AmortizationOfIntangibleAssets us-gaap:BusinessAcquisition

uctt:DynamicManufacturingSolutions


Amortization
Period End2020-09-252020-06-262020-03-272019-12-272019-09-272019-06-28
Value0.30.30.30.30.30.2
Percentage of AmortizationOfIntangibleAssets6.16.16.15.95.93.9
Percentage of Assets0.00.00.00.00.00.0
Percentage of Assets uctt:DynamicManufacturingSolutions0.00.00.00.00.00.0

uctt:HamLet


Amortization
Period End2021-06-25
Value4.6
Percentage of AmortizationOfIntangibleAssets48.4
Percentage of Assets0.0
Percentage of Assets uctt:HamLet0.0

Property Plant And Equipment Net

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:PropertyPlantAndEquipmentNet


Property
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-12-202017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012010-12-31
Value218157159150148143145143144141143133383632322823201818181717161414108.0668.2078.1678.5348.7568.4948.7349.2829.8918.7629.5181010108.971
Percentage of PropertyPlantAndEquipmentNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets11.813.214.414.213.313.414.314.514.314.114.913.66.05.45.70.05.85.24.95.05.35.15.25.14.84.34.23.72.82.72.62.93.33.23.23.53.65.34.95.65.95.35.2

Goodwill

us-gaap:Goodwill

us-gaap:Goodwill


Goodwill
Period End2021-06-252021-03-312021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282011-09-30
Value257861711711711711711711691661501501518585858585858585858585847474555555555555555656560.0
Percentage of Goodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets13.90.014.415.516.115.316.016.817.116.515.015.615.413.212.515.117.018.820.122.424.223.824.625.423.721.821.718.919.718.417.919.120.920.821.021.320.40.0

us-gaap:Goodwill us-gaap:StatementBusinessSegments

uctt:SemiconductorProductsAndSolutions


Goodwillus-gaap:
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272018-12-282017-12-29
Value1839797979797978585
Percentage of Goodwill71.457.057.057.057.057.057.056.799.9
Percentage of Assets9.98.28.99.28.89.19.68.815.1
Percentage of Assets uctt:SemiconductorProductsAndSolutions0.00.011.211.710.811.211.814.90.0

uctt:SemiconductorServicesBusiness


Goodwillus-gaap:
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272018-12-282017-12-29
Value73737373737373650.0
Percentage of Goodwill28.643.043.043.043.043.043.043.30.0
Percentage of Assets4.06.26.76.96.66.97.26.70.0
Percentage of Assets uctt:SemiconductorServicesBusiness0.00.031.432.134.236.838.416.50.0

Intangible Assets Net Excluding Goodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill


Intangible
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012010-12-31
Value2701551601651701751801851901881932032930313334353738394142443739161819202123242627298.9878.9878.9878.9878.9878.987
Percentage of IntangibleAssetsNetExcludingGoodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets14.613.114.615.615.316.417.718.718.918.820.020.64.64.55.66.77.68.59.710.911.112.012.712.611.011.45.76.36.36.57.48.79.29.710.410.75.44.75.05.14.65.2

us-gaap:IntangibleAssetsNetExcludingGoodwill us-gaap:FiniteLivedIntangibleAssetsByMajorClass

uctt:Backlog


Intangible
Period End2021-06-25
Value3.9
Percentage of IntangibleAssetsNetExcludingGoodwill1.4
Percentage of Assets0.2
Percentage of Assets uctt:Backlog0.0

Finite Lived Intangible Assets Net

us-gaap:FiniteLivedIntangibleAssetsNet

us-gaap:FiniteLivedIntangibleAssetsNet


Finite
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302013-12-272013-09-272013-06-282013-03-292012-12-28
Value26114615115616116617117618117918419420212224251214151718
Percentage of FiniteLivedIntangibleAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets14.212.313.714.814.515.516.817.818.017.919.119.73.23.24.04.95.64.35.35.96.47.0

us-gaap:FiniteLivedIntangibleAssetsNet us-gaap:FiniteLivedIntangibleAssetsByMajorClass

uctt:Backlog


Finite
Period End2021-06-25
Value3.9
Percentage of FiniteLivedIntangibleAssetsNet1.5
Percentage of Assets0.2
Percentage of Assets uctt:Backlog0.0

uctt:Recipes


Finite
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272018-12-28
Value6263646566676872
Percentage of FiniteLivedIntangibleAssetsNet24.043.542.741.941.240.539.939.0
Percentage of Assets3.45.45.96.26.06.36.77.5
Percentage of Assets uctt:Recipes0.00.00.00.00.00.00.00.0

uctt:StandardOperatingProcedures


Finite
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272018-12-28
Value7.47.57.67.77.87.98.08.4
Percentage of FiniteLivedIntangibleAssetsNet2.85.15.04.94.84.74.74.6
Percentage of Assets0.40.60.70.70.70.70.80.9
Percentage of Assets uctt:StandardOperatingProcedures0.00.00.00.00.00.00.00.0

us-gaap:CustomerRelationships


Finite
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272018-12-28
Value13566687174767983
Percentage of FiniteLivedIntangibleAssetsNet51.845.145.445.746.046.246.545.3
Percentage of Assets7.35.66.26.76.77.27.88.6
Percentage of Assets us-gaap:CustomerRelationships0.00.00.00.00.00.00.00.0

us-gaap:IntellectualProperty


Finite
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272018-12-28
Value383.84.14.54.85.25.57.0
Percentage of FiniteLivedIntangibleAssetsNet14.62.62.72.93.03.13.23.8
Percentage of Assets2.10.30.40.40.40.50.50.7
Percentage of Assets us-gaap:IntellectualProperty0.00.00.00.00.00.00.00.0

us-gaap:TradeNames


Finite
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272018-12-28
Value2214151617181822
Percentage of FiniteLivedIntangibleAssetsNet8.79.910.110.410.610.811.012.2
Percentage of Assets1.21.21.41.51.51.71.92.3
Percentage of Assets us-gaap:TradeNames0.00.00.00.00.00.00.00.0

Operating Lease Right Of Use Asset

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OperatingLeaseRightOfUseAsset


Operating
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-28
Value694137383835343334
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.83.53.43.63.53.33.43.33.4

Other Assets Noncurrent

us-gaap:OtherAssetsNoncurrent

us-gaap:OtherAssetsNoncurrent


Other
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012010-12-31
Value8300000.06400000.05300000.05200000.05000000.04900000.05200000.05953000.05743000.06091000.05193000.08072000.01830000.02181000.01932000.01769000.01565000.01007000.0762000.0743000.0753000.0725000.0717000.0705000.0754000.0747000.0667000.0374000.0377000.0374000.0583000.06417000.06244000.06486000.0530000.05372000.05177000.05186000.0417000.0590000.0598000.0571000.0
Percentage of OtherAssetsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.40.50.50.50.40.50.50.60.60.60.50.80.30.30.30.40.30.20.20.20.20.20.20.20.20.20.20.10.10.10.22.42.32.40.21.93.12.70.20.30.30.3

Accounts Payable Current

us-gaap:AccountsPayableCurrent

us-gaap:AccountsPayableCurrent


Accounts
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012010-12-31
Value2311641211111401291331019799999511316917313010495715164523947465048424555533730342334253929264845
Percentage of AccountsPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets12.513.911.010.512.612.113.110.29.69.910.39.617.724.930.826.122.922.618.714.718.115.311.813.313.614.616.514.915.017.718.414.111.212.88.812.215.520.216.515.425.226.6

Debt Current

us-gaap:DebtCurrent us-gaap:BusinessAcquisition

us-gaap:DebtCurrent

uctt:HamLet


Debt
Period End2021-03-31
Value91
Percentage of DebtCurrent100.0
Percentage of Assets0.0
Percentage of Assets uctt:HamLet0.0

uctt:HamLetIsraelCanadaLtd


Debt
Period End2021-03-31
Value91
Percentage of DebtCurrent100.0
Percentage of Assets0.0
Percentage of Assets uctt:HamLetIsraelCanadaLtd0.0

Liabilities Current

us-gaap:LiabilitiesCurrent

us-gaap:LiabilitiesCurrent


Liabilities
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012010-12-31
Value355263201195226213210162154156139175188245207170142131101859279647062636688991131008086887990354636416457
Percentage of LiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets19.222.118.218.420.419.920.716.415.415.614.417.829.336.136.834.031.331.026.524.125.923.019.319.818.218.522.331.132.836.134.230.332.232.829.832.421.324.320.623.733.133.4

Operating Lease Liability Current

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OperatingLeaseLiabilityCurrent


Operating
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-27
Value16121112121313
Percentage of OperatingLeaseLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.91.01.11.11.11.21.3

Other Liabilities Current

us-gaap:OtherLiabilitiesCurrent

us-gaap:OtherLiabilitiesCurrent


Other
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012010-12-31
Value424626333937301619181417109.4419.98711108.0394.515107.2517.3725.1875.3712.3072.7382.132.7393.1183.1222.3852.042.2671.8942.4182.4222.1911.3240.6627.4115.9733.195
Percentage of OtherLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.33.92.43.23.53.53.01.72.01.81.51.81.61.41.82.22.31.91.22.92.02.11.51.50.70.80.71.01.01.00.80.80.80.70.90.91.30.70.44.23.11.8

Long Term Debt

us-gaap:LongTermDebt

us-gaap:LongTermDebt


Long
Period End2020-12-252019-12-272015-09-252015-06-262015-03-27
Value276301767475
Percentage of LongTermDebt100.0100.0100.0100.0100.0
Percentage of Assets25.129.621.621.822.1

us-gaap:LongTermDebt us-gaap:DebtInstrument

uctt:BankDebt


Long
Period End2021-06-252021-03-262020-12-252020-09-252019-12-272018-06-292018-03-302017-12-292016-12-302016-06-24
Value5942672692800.29225454526869
Percentage of LongTermDebt0.00.097.10.00.10.00.00.00.00.0
Percentage of Assets32.222.524.426.40.08.58.09.317.919.5
Percentage of Assets uctt:BankDebt0.00.00.00.00.00.00.00.00.00.0

Deferred Income Tax Liabilities Net

us-gaap:DeferredIncomeTaxLiabilitiesNet

us-gaap:DeferredIncomeTaxLiabilitiesNet


Deferred
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262019-12-27
Value453333252525
Percentage of DeferredIncomeTaxLiabilitiesNet100.0100.0100.0100.0100.0100.0
Percentage of Assets2.52.83.02.42.32.5

Minority Interest

us-gaap:MinorityInterest

us-gaap:MinorityInterest


Minority
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-28
Value2119181817161515151514
Percentage of MinorityInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.11.61.71.71.61.61.61.61.51.51.5

Other Liabilities Noncurrent

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:OtherLiabilitiesNoncurrent


Other
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282017-12-29
Value3023231719191822212227235.886
Percentage of OtherLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.62.02.21.71.71.81.82.22.12.22.92.41.0

Operating Lease Liability Noncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent


Operating
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-27
Value54333131332828
Percentage of OperatingLeaseLiabilityNoncurrent100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.92.82.82.93.02.72.8

Lessee Operating Lease Liability Payments Due Year Two

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo


Lessee
Period End2021-06-252021-03-262020-12-252020-09-25
Value149.51010
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearTwo100.0100.0100.0100.0
Percentage of Assets0.80.81.01.0

Lessee Operating Lease Liability Payments Due Year Three

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree


Lessee
Period End2021-06-252021-03-262020-12-252020-09-25
Value117.17.77.3
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearThree100.0100.0100.0100.0
Percentage of Assets0.60.60.70.7

Lessee Operating Lease Liability Payments Due Year Four

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour


Lessee
Period End2021-06-252021-03-262020-12-252020-09-25
Value8100000.04900000.05400000.05000000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFour100.0100.0100.0100.0
Percentage of Assets0.40.40.50.5

Lessee Operating Lease Liability Payments Due Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive


Lessee
Period End2020-12-25
Value4000000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFive100.0
Percentage of Assets0.4

Lessee Operating Lease Liability Payments Due After Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive


Lessee
Period End2020-12-25
Value8500000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive100.0
Percentage of Assets0.8

Operating Lease Liability

us-gaap:OperatingLeaseLiability

us-gaap:OperatingLeaseLiability


Operating
Period End2021-06-252021-03-262020-12-252020-09-252019-12-272019-09-272019-06-28
Value70464243423536
Percentage of OperatingLeaseLiability100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.83.93.94.14.13.63.7

Lessee Operating Lease Liability Payments Due

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue


Lessee
Period End2021-06-252021-03-262020-12-252020-09-25
Value82534947
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue100.0100.0100.0100.0
Percentage of Assets4.54.54.54.5

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue us-gaap:LeaseContractualTerm

uctt:TwoNewLeaseArrangement


Lessee
Period End2020-12-25
Value22
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue45.0
Percentage of Assets2.0
Percentage of Assets uctt:TwoNewLeaseArrangement0.0

Lessee Operating Lease Liability Undiscounted Excess Amount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount


Lessee
Period End2021-06-252021-03-262020-12-252020-09-25
Value126.86.34.5
Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount100.0100.0100.0100.0
Percentage of Assets0.70.60.60.4

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012010-12-312010-01-012009-01-02
Value767557532500470445436440439438436434439419300276254231216204200198200214208205188183189181171163160156156157128122117108104876178
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets41.646.848.347.242.241.642.844.443.543.745.244.168.261.653.355.356.154.856.858.255.957.459.860.361.160.063.764.562.258.158.861.159.457.959.056.576.963.665.861.953.750.60.00.0

Stockholders Equity Including Portion Attributable To Noncontrolling Interest

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest


Stockholders
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292016-12-302015-12-25
Value788576551518488462452456454453450446439419300216200
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets42.748.450.048.943.843.244.446.045.045.246.745.368.261.653.356.859.8

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292016-12-302015-12-25
Value4.61.65.1-1.3-3.3-4.6-1.3-4.349-2.655-1.423-0.547-0.0430.4121.3061.847-0.383-0.018
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest0.60.30.9-0.3-0.7-1.0-0.3-1.0-0.6-0.3-0.1-0.00.10.30.6-0.2-0.0
Percentage of Assets0.20.10.5-0.1-0.3-0.4-0.1-0.4-0.3-0.1-0.1-0.00.10.20.3-0.1-0.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292016-12-302015-12-25
Value506316312309306304300294291289287283282280185178172
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest64.254.956.759.662.765.766.564.564.263.863.763.664.266.861.782.686.1
Percentage of Assets27.426.628.429.227.428.429.529.728.928.829.728.843.841.232.946.951.4
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292016-12-302015-12-25
Value0.10.10.10.10.10.10.10.040.040.040.040.0390.0390.0390.0340.0330.032
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NoncontrollingInterest


Stockholders
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-28
Value211918181716151515151411
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest2.73.33.43.53.63.73.53.53.43.43.32.7
Percentage of Assets1.11.61.71.71.61.61.61.61.51.51.51.2
Percentage of Assets us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Parent


Stockholders
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282017-12-292016-12-30
Value767557532500470445436440439438436300216
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest97.396.796.696.596.496.396.596.596.696.696.7100.0100.0
Percentage of Assets41.646.848.347.242.241.642.844.443.543.745.253.356.8
Percentage of Assets us-gaap:Parent0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292016-12-302015-12-25
Value2602422171951711491401501501501491501561371133827
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest33.042.139.537.735.032.331.033.033.033.133.233.835.732.937.717.613.9
Percentage of Assets14.120.419.818.415.314.013.815.214.915.015.515.324.420.220.110.08.3
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292011-12-302011-09-302011-07-012010-12-31
Value0.10.10.10.10.10.10.10.040.040.040.040.0390.0390.0390.0340.0340.0340.0340.0330.0330.0330.0330.0320.0320.0320.0320.030.030.030.0290.029145144143143142111108107106102
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.054.553.653.053.851.066.861.061.655.059.4

Additional Paid In Capital Common Stock

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:AdditionalPaidInCapitalCommonStock


Additional
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-26
Value506316312309306304300297294292290287285283188186184182181180178176176174169169153
Percentage of AdditionalPaidInCapitalCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets27.426.628.429.227.428.429.530.029.229.230.129.144.341.733.537.240.643.247.751.149.751.152.449.049.749.351.7

Retained Earnings Accumulated Deficit

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:RetainedEarningsAccumulatedDeficit


Retained
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012010-12-31
Value2602422171951711491401501501501491501561371139272523828252427434239383540342720181616182016113.9830.828-11.95
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets14.120.419.818.415.314.013.815.214.915.015.515.324.420.220.118.416.012.410.08.07.17.28.312.312.311.613.112.413.311.09.47.97.06.16.46.712.28.56.62.30.4-6.9

Accumulated Other Comprehensive Income Loss Net Of Tax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax


Accumulated
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252012-09-28
Value4600000.01600000.05100000.0-1300000.0-3300000.0-4600000.0-1300000.0-4349000.0-2655000.0-1423000.0-547000.0-43000.0412000.01306000.01847000.01551000.01005000.0-265000.0-383000.077000.0-20000.042000.0-18000.0-143000.0
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.20.10.5-0.1-0.3-0.4-0.1-0.4-0.3-0.1-0.1-0.00.10.20.30.30.2-0.1-0.10.0-0.00.0-0.0-0.1

Treasury Stock Value

us-gaap:TreasuryStockValue

us-gaap:TreasuryStockValue


Treasury
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012010-12-31
Value3300000.03300000.03300000.03300000.03300000.03300000.03300000.03337000.03337000.03337000.03337000.03337000.03337000.03337000.03337000.03337000.03337000.03337000.03337000.03337000.03337000.03337000.03337000.03337000.03337000.03337000.03337000.03337000.03337000.03337000.03337000.03337000.03337000.03337000.03337000.03337000.03337000.03337000.03337000.03337000.03337000.03337000.0
Percentage of TreasuryStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.20.30.30.30.30.30.30.30.30.30.30.30.50.50.60.70.70.80.90.90.91.01.00.91.01.01.11.21.11.11.11.21.21.21.31.22.01.71.91.91.71.9

Minority Interest

us-gaap:MinorityInterest

us-gaap:MinorityInterest


Minority
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-28
Value2119181817161515151514
Percentage of MinorityInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.11.61.71.71.61.61.61.61.51.51.5

Stock Issued During Period Value New Issues

us-gaap:StockIssuedDuringPeriodValueNewIssues

us-gaap:StockIssuedDuringPeriodValueNewIssues


Stock
Period End2021-06-252018-03-30
Value19294
Percentage of StockIssuedDuringPeriodValueNewIssues100.0100.0
Percentage of Assets0.00.0

us-gaap:StockIssuedDuringPeriodValueNewIssues us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stock
Period End2021-06-252018-03-30
Value19294
Percentage of StockIssuedDuringPeriodValueNewIssues100.0100.0
Percentage of Assets0.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.0

us-gaap:Parent


Stock
Period End2021-06-25
Value192
Percentage of StockIssuedDuringPeriodValueNewIssues100.0
Percentage of Assets0.0
Percentage of Assets us-gaap:Parent0.0

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

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue


Adjustments
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-29
Value3.73.53.33.23.13.13.03.32.92.9
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Adjustments
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-29
Value3.73.53.33.23.13.13.03.32.92.9
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.0

us-gaap:Parent


Adjustments
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-29
Value3.73.53.33.23.13.13.03.32.92.9
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:Parent0.00.00.00.00.00.00.00.00.00.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-03-262020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-10-01
Value651715312149182627-17.1255.0794.016-3.8088.2559.21716-1.598.61163.899151.7534.531.88-3.8954.602
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestIncomeOperating65600.08750.05233.30.00.024959.59049.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-03-262020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-10-01
Value800000.0-7400000.0-6700000.0-9360000.0-3675000.0-31967000.0-4198000.0-39945000.0-296320000.0-3755000.0-5911000.0-446000.0-675000.0-1482000.0-465000.0-245000.0180000.0-75518000.0-2000.0-214000.0-489000.0-838000.0-1502000.0-1154000.0-1253000.0-540000.0
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestIncomeOperating800.0-3700.0-2233.30.00.0-15983.5-2099.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-03-262020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-10-01
Value-1.6-3.937-22.145-25.709-2.42-3.126-2.909288-0.2439410-1.043-12.165-2.362-5.39-2.60874-20.051-1.07-0.789-0.679-0.675-0.097120.565
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestIncomeOperating-1600.0-1950.012333.30.00.0-1210.0-1563.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

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

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect


Cash
Period End2021-03-262020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-30
Value646.3453.855-9.4381310-16.19519-21.21994
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestIncomeOperating64000.03150.015200.00.00.06677.05314.50.00.00.00.0

Increase Decrease In Accounts Payable

us-gaap:IncreaseDecreaseInAccountsPayable

us-gaap:IncreaseDecreaseInAccountsPayable


Increase
Period End2021-03-262020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-10-01
Value4310-4.1314.422-4.078-0.6263.504-27.209-55.276-4.21441267.5572319-12.6741113-4.413-4.43-3.744-0.0066.189-3.039-9.8191.483167.781-4.4510-12.77-2.951-13.2029.4252.52-21.9950.1872.782-5.1297.737
Percentage of IncreaseDecreaseInAccountsPayable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Accounts Receivable

us-gaap:IncreaseDecreaseInAccountsReceivable

us-gaap:IncreaseDecreaseInAccountsReceivable


Increase
Period End2021-03-262020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-10-01
Value22250.72.12412-14.1834.1826.493-22.48815-6.839-17.4575.676.639209.267-7.3026.397.4791.598-3.112-12.1127.8084.358-10.488-4.254.747172.658-2.405-0.5992.767-11.705-7.0327.923-6.619-10.109-0.2233.4138.0350.863
Percentage of IncreaseDecreaseInAccountsReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Inventories

us-gaap:IncreaseDecreaseInInventories

us-gaap:IncreaseDecreaseInInventories


Increase
Period End2021-03-262020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-10-01
Value8.86.81420-10.127-26.783-5.579-12.335-30.05-32.426247125161915-1.3158.3279.173-2.7424.5714.7351.7651.497-11.707-0.4013.519131.622-3.344-2.794-9.639-3.621-16.5475.525-3.794-10.6044.7195.864-4.7538.983
Percentage of IncreaseDecreaseInInventories100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-03-262020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-10-01
Value651715312149182627-17.1255.0794.016-3.8088.2559.21716-1.598.61163.899151.7534.531.88-3.8954.602
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestIncomeOperating65600.08750.05233.30.00.024959.59049.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-302012-09-282012-06-292012-03-312012-03-302011-12-302011-09-302011-07-012011-04-012011-03-312010-12-312010-10-012010-07-02
Value17252224219.4-10.30.513-0.2020.605-1.1-5.9971824201920149.9532.6140.723-3.239-15.7881.6762.2071.1733.532-5.2626.0327.0566.3712.0482.316-0.311-1.729-1.124-1.7012.794.664.667.8013.1556.9585.825.823.8966.6975.654
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestIncomeOperating17100.025000.00.012200.010650.03133.30.00.0-101.0302.50.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-09-29
Value182522252210-9.6880.888-0.2541.354-0.312-6.44182419
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestIncomeOperating0.00.00.012550.011050.03500.00.00.0-127.0677.00.00.00.00.00.0

us-gaap:ProfitLoss us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest


Profit
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-09-28
Value0.90.60.20.70.81.10.60.375-0.0520.749-0.443
Percentage of ProfitLoss5.02.30.92.83.610.5-6.242.220.555.36.9
Percentage of InterestIncomeOperating0.00.00.0350.0400.0366.70.00.0-26.0374.50.0
Percentage of InterestIncomeOperating us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Parent


Profit
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-29
Value17252224219.4-10.30.5-0.20.6
Percentage of ProfitLoss95.097.799.197.296.489.5106.356.378.744.3
Percentage of InterestIncomeOperating0.00.00.012200.010650.03133.30.00.0-100.0300.0
Percentage of InterestIncomeOperating us-gaap:Parent0.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Profit
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-09-282018-06-292018-03-30
Value17252224219.4-10.30.513-0.2020.605-5.9971824
Percentage of ProfitLoss95.097.799.197.296.489.5106.357.879.544.793.1100.0100.0
Percentage of InterestIncomeOperating0.00.00.012200.010650.03133.30.00.0-101.0302.50.00.00.0
Percentage of InterestIncomeOperating us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.0

Share Based Compensation

us-gaap:ShareBasedCompensation

us-gaap:ShareBasedCompensation


Share
Period End2021-06-252021-03-262020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-10-01
Value3.73.53.33.13.13.0223.3012.8642.9133.1392.2142.3562.5632.6982.2971.381.3821.6311.8571.1181.0651.0531.1141.0430.4741.2311.1570.9931.0191.1741.1261.01.321.0031.4171.3971.2521.1071.0861.1641.0020.7540.865
Percentage of ShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensation us-gaap:IncomeStatementLocation

us-gaap:CostOfSales


Share
Period End2021-06-252021-03-262020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-29
Value0.40.50.40.50.40.6180.5780.5660.6380.7060.3740.5170.5060.5030.3950.2580.3430.4260.3620.190.2760.2670.3040.2460.3820.3330.2670.2420.3260.3140.1590.3080.4170.0260.4220.422
Percentage of ShareBasedCompensation10.814.312.116.112.920.517.519.821.922.516.921.919.718.617.218.724.826.119.517.025.925.427.323.680.627.123.124.432.026.714.130.831.62.629.830.2

us-gaap:GeneralAndAdministrativeExpense


Share
Period End2021-06-252021-03-262020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-29
Value2.92.62.62.22.31.9632.3261.9241.8882.0571.5941.6361.7941.9471.6350.9780.862-1.0910.1420.7610.6511.5670.1030.657-0.0690.8930.6710.5950.490.7340.7710.5370.6830.7430.7860.777
Percentage of ShareBasedCompensation78.474.378.871.074.265.070.567.264.865.572.069.470.072.271.270.962.4-66.97.668.161.1148.89.263.0-14.672.558.059.948.162.568.553.751.774.155.555.6

us-gaap:ResearchAndDevelopmentExpense


Share
Period End2021-06-252021-03-262020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-29
Value0.00.10.10.10.0910.1220.0450.0420.8560.0250.010.0610.440.0770.0470.053-1.1241.2770.0670.061-1.0450.6580.0510.05-0.0890.10.0740.0710.0740.0690.0590.0880.0830.0910.086
Percentage of ShareBasedCompensation0.02.93.23.23.03.71.61.427.31.10.42.416.33.43.43.8-68.968.86.05.7-99.259.14.910.5-7.28.67.57.06.36.15.96.78.36.46.2

us-gaap:SellingAndMarketingExpense


Share
Period End2021-06-252021-03-262020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-29
Value0.40.30.30.30.30.350.2750.3290.345-0.480.2210.1930.202-0.1920.190.0970.1243.420.0760.10.0770.2640.0490.0890.1110.0940.1190.0820.1320.1180.1270.0960.1320.1510.1180.112
Percentage of ShareBasedCompensation10.88.69.19.79.711.68.311.511.8-15.310.08.27.9-7.18.37.09.0209.74.18.97.225.14.48.523.47.610.38.313.010.111.39.610.015.18.38.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-03-262020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-10-01
Value800000.0-7400000.0-6700000.0-9360000.0-3675000.0-31967000.0-4198000.0-39945000.0-296320000.0-3755000.0-5911000.0-446000.0-675000.0-1482000.0-465000.0-245000.0180000.0-75518000.0-2000.0-214000.0-489000.0-838000.0-1502000.0-1154000.0-1253000.0-540000.0
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestIncomeOperating800.0-3700.0-2233.30.00.0-15983.5-2099.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Payments To Acquire Property Plant And Equipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment


Payments
Period End2021-03-262020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-10-01
Value6.5106.7135.9151.9064.844105.863.7555.9113.6156.7642.9862.7841.8181.7581.6722.034.9561.41.2142.5823.2680.6530.9010.5120.6751.5780.4650.2450.20.1930.0020.2140.4890.8381.5021.1541.2530.54
Percentage of PaymentsToAcquirePropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-03-262020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-10-01
Value-1.6-3.937-22.145-25.709-2.42-3.126-2.909288-0.2439410-1.043-12.165-2.362-5.39-2.60874-20.051-1.07-0.789-0.679-0.675-0.097120.565
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of InterestIncomeOperating-1600.0-1950.012333.30.00.0-1210.0-1563.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Repayments Of Long Term Debt

us-gaap:RepaymentsOfLongTermDebt

us-gaap:RepaymentsOfLongTermDebt


Repayments
Period End2021-03-262020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-29
Value8.211142832238.8637.74659117.873126.6217.914.6973.3253.2584.1923.5663.6961.4151.25482.52.52.52.5-45.50248-11.50219
Percentage of RepaymentsOfLongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Dividends

us-gaap:Dividends

us-gaap:Dividends


Dividends
Period End2021-06-252021-03-26
Value100000.0200000.0
Percentage of Dividends100.0100.0

us-gaap:Dividends us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest


Dividendsus-gaap:
Period End2021-06-252021-03-26
Value100000.0200000.0
Percentage of Dividends100.0100.0

Debt Instrument Interest Rate Stated Percentage

us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:Range, us-gaap:BusinessAcquisition

us-gaap:DebtInstrumentInterestRateStatedPercentage

srt:Maximum, uctt:HamLet


Debt
Period End2021-06-25
Value4.6
Percentage of DebtInstrumentInterestRateStatedPercentage100.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.0
Percentage of LongTermDebtAndCapitalLeaseObligations srt:Maximum uctt:HamLet0.0

srt:Minimum, uctt:HamLet


Debt
Period End2021-06-25
Value1.8
Percentage of DebtInstrumentInterestRateStatedPercentage39.1
Percentage of LongTermDebtAndCapitalLeaseObligations0.0
Percentage of LongTermDebtAndCapitalLeaseObligations srt:Minimum uctt:HamLet0.0

us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:Range, us-gaap:StatementGeographical, us-gaap:DebtInstrument, us-gaap:RelatedPartyTransactionsByRelatedParty

srt:Maximum, country:CN, uctt:BankDebt, uctt:CincosXianCleanTechnologyLtd


Debt
Period End2020-12-25
Value4.1
Percentage of DebtInstrumentInterestRateStatedPercentage0.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.0
Percentage of LongTermDebtAndCapitalLeaseObligations srt:Maximum country:CN uctt:BankDebt uctt:CincosXianCleanTechnologyLtd0.0

srt:Minimum, country:CN, uctt:BankDebt, uctt:CincosXianCleanTechnologyLtd


Debt
Period End2020-12-25
Value2.1
Percentage of DebtInstrumentInterestRateStatedPercentage0.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.0
Percentage of LongTermDebtAndCapitalLeaseObligations srt:Minimum country:CN uctt:BankDebt uctt:CincosXianCleanTechnologyLtd0.0

us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:StatementGeographical, us-gaap:DebtInstrument, us-gaap:RelatedPartyTransactionsByRelatedParty

country:CN, uctt:BankDebt, uctt:CincosXianCleanTechnologyLtd


Debt
Period End2021-06-252021-03-262020-09-252020-06-26
Value3.13.11.90.024
Percentage of DebtInstrumentInterestRateStatedPercentage67.40.00.00.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.00.00.00.0
Percentage of LongTermDebtAndCapitalLeaseObligations country:CN uctt:BankDebt uctt:CincosXianCleanTechnologyLtd0.00.00.00.0

Effective Income Tax Rate Continuing Operations

us-gaap:EffectiveIncomeTaxRateContinuingOperations

us-gaap:EffectiveIncomeTaxRateContinuingOperations


Effective
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-01
Value25.621.5-1.316.00.2050.2983.3540.8141.0980.5270.082-2.4920.1320.092-0.0340.1520.1330.239-0.5160.5130.751-0.8083.6890.2780.2810.307-0.0280.1960.2070.173-0.0140.1550.201-0.0740.0070.240.20.244-0.2990.2180.238
Percentage of EffectiveIncomeTaxRateContinuingOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Liabilities

us-gaap:DeferredTaxLiabilities

us-gaap:DeferredTaxLiabilities


Deferred
Period End2020-12-252019-12-272018-12-282017-12-292016-12-302015-12-25
Value109.75.6675.038.5625.097
Percentage of DeferredTaxLiabilities100.0100.0100.0100.0100.0100.0

Deferred Tax Assets Net

us-gaap:DeferredTaxAssetsNet

us-gaap:DeferredTaxAssetsNet


Deferred
Period End2020-12-252019-12-272018-12-282017-12-292016-12-302015-12-25
Value2315103.9790.121.059
Percentage of DeferredTaxAssetsNet100.0100.0100.0100.0100.0100.0

Unrecognized Tax Benefits

us-gaap:UnrecognizedTaxBenefits

us-gaap:UnrecognizedTaxBenefits


Unrecognized
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302010-12-312010-01-01
Value1300000.01000000.0900000.01000000.01000000.01000000.01000000.01000000.01000000.01000000.01012000.01000000.0300000.0300000.0302000.0300000.0300000.0300000.0298000.0374000.0324000.0339000.0337000.0330000.0325000.0374000.0356000.0345000.0306000.0175000.0165000.087000.087000.0109000.0109000.0111000.0154000.0137000.0132000.0039000.039000.0
Percentage of UnrecognizedTaxBenefits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0

Deferred Tax Assets Valuation Allowance

us-gaap:DeferredTaxAssetsValuationAllowance us-gaap:BalanceSheetLocation

us-gaap:DeferredTaxAssetsValuationAllowance

uctt:DeferredTaxAssetsNoncurrent


Deferred
Period End2020-12-252019-12-27
Value2525
Percentage of DeferredTaxAssetsValuationAllowance100.0100.0

uctt:AmortizationOfDebtIssuanceCosts

uctt:AmortizationOfDebtIssuanceCosts


Amortization
Period End2021-03-262020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-28
Value400000.0500000.0400000.0454000.0446000.0500000.0400000.0478000.0
Percentage of AmortizationOfDebtIssuanceCosts100.0100.0100.0100.0100.0100.0100.0100.0

uctt:AmortizationOfFiniteLivedIntangibles

uctt:AmortizationOfFiniteLivedIntangibles


Amortization
Period End2021-03-262020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-28
Value4.95.04.95.1025.0985.04.94.993
Percentage of AmortizationOfFiniteLivedIntangibles100.0100.0100.0100.0100.0100.0100.0100.0

uctt:BusinessCombinationEarnOutPaymentsFairValue us-gaap:BusinessAcquisition

uctt:BusinessCombinationEarnOutPaymentsFairValue

uctt:DynamicManufacturingSolutions


Business
Period End2020-08-312020-06-262020-03-27
Value120.212
Percentage of BusinessCombinationEarnOutPaymentsFairValue100.0100.0100.0

uctt:CapsForLimitationOnTheDeductionForInterestExpense us-gaap:UnusualRiskOrUncertaintyByNature

uctt:CapsForLimitationOnTheDeductionForInterestExpense

uctt:CaresAct


Caps
Period End2021-06-252021-03-26
Value050.0
Percentage of CapsForLimitationOnTheDeductionForInterestExpense0.0100.0

uctt:GainFromInsuranceProceeds

uctt:GainFromInsuranceProceeds


Gain
Period End2021-03-26
Value7300000.0
Percentage of GainFromInsuranceProceeds100.0

uctt:IncreaseDecreaseInLiabilityRecordedAsOtherIncome us-gaap:BusinessAcquisition

uctt:IncreaseDecreaseInLiabilityRecordedAsOtherIncome

uctt:DynamicManufacturingSolutions


Increase
Period End2020-12-252020-09-252020-06-26
Value00200000.0
Percentage of IncreaseDecreaseInLiabilityRecordedAsOtherIncome0.00.0100.0

uctt:IncreaseDecreaseInOperatingLeaseAssetsAndLiabilitiesNet

uctt:IncreaseDecreaseInOperatingLeaseAssetsAndLiabilitiesNet


Increase
Period End2021-03-262020-06-262020-03-27
Value300000.0100000.0400000.0
Percentage of IncreaseDecreaseInOperatingLeaseAssetsAndLiabilitiesNet100.0100.0100.0

uctt:PercentageOfBonusDepreciation us-gaap:UnusualRiskOrUncertaintyByNature

uctt:PercentageOfBonusDepreciation

uctt:CaresAct


Percentage
Period End2021-06-252021-03-26
Value0100.0
Percentage of PercentageOfBonusDepreciation0.0100.0

uctt:PercentageOfCorporateCharitableDeductionLimitOfTaxableIncome us-gaap:UnusualRiskOrUncertaintyByNature

uctt:PercentageOfCorporateCharitableDeductionLimitOfTaxableIncome

uctt:CaresAct


Percentage
Period End2021-06-252021-03-26
Value025.0
Percentage of PercentageOfCorporateCharitableDeductionLimitOfTaxableIncome0.0100.0

uctt:PercentageOfIncreaseInNoncontrollingInterest dei:LegalEntity

uctt:PercentageOfIncreaseInNoncontrollingInterest

uctt:CinosCoLtdAndCinosXianCleanTechnologyLtd


Percentage
Period End2021-07-24
Value35.0
Percentage of PercentageOfIncreaseInNoncontrollingInterest100.0

uctt:PercentageOfOriginalOutstandingPrincipalBalanceAsQuarterlyPrincipalPayment dei:LegalEntity, us-gaap:SubsequentEventType, us-gaap:TypeOfArrangement

uctt:PercentageOfOriginalOutstandingPrincipalBalanceAsQuarterlyPrincipalPayment

uctt:HamLet, us-gaap:SubsequentEvent, uctt:IncrementalTermLoanAgreement


Percentage
Period End2021-03-31
Value0.625
Percentage of PercentageOfOriginalOutstandingPrincipalBalanceAsQuarterlyPrincipalPayment100.0

uctt:PercentageRemovalOfTaxableIncomeLimitationOnNetOperatingLossesDeduction us-gaap:UnusualRiskOrUncertaintyByNature

uctt:PercentageRemovalOfTaxableIncomeLimitationOnNetOperatingLossesDeduction

uctt:CaresAct


Percentage
Period End2021-06-252021-03-262020-12-252020-09-25
Value080.0079.2
Percentage of PercentageRemovalOfTaxableIncomeLimitationOnNetOperatingLossesDeduction0.0100.00.0100.0

uctt:RevenueAgainstCostOfGoodsSoldAndOtherOperatingExpenses

uctt:RevenueAgainstCostOfGoodsSoldAndOtherOperatingExpenses


Revenue
Period End2020-12-252020-09-25
Value500000.0400000.0
Percentage of RevenueAgainstCostOfGoodsSoldAndOtherOperatingExpenses100.0100.0

uctt:RevenueAgainstCostOfRevenues

uctt:RevenueAgainstCostOfRevenues


Revenue
Period End2020-09-25
Value1100000.0
Percentage of RevenueAgainstCostOfRevenues100.0

us-gaap:AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation


Adjustments
Period End2021-06-252020-12-252020-06-262019-12-272019-09-272019-06-282019-03-292018-09-282018-06-292018-03-30
Value7000000.0100000.01400000.0200000.0257000.0544000.0850000.0311000.0756000.01862000.0
Percentage of AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Adjustments
Period End2021-06-252020-12-252020-06-262019-12-272019-09-272019-06-282019-03-292018-09-282018-06-292018-03-30
Value7000000.0100000.01400000.0200000.0257000.0544000.0850000.0311000.0756000.01862000.0
Percentage of AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Parent


Adjustments
Period End2021-06-252020-12-252020-06-262019-12-272019-09-272019-06-282019-03-29
Value7000000.0100000.01400000.0200000.0300000.0500000.0900000.0
Percentage of AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation100.0100.0100.0100.0116.791.9105.9

us-gaap:AllocatedShareBasedCompensationExpenseNetOfTax

us-gaap:AllocatedShareBasedCompensationExpenseNetOfTax


Allocated
Period End2021-06-252021-03-262020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-01
Value2.82.72.82.52.2100.615-0.2821.3781.6231.752.0442.3272.5031.9481.1961.0522.950.9220.2781.0651.3120.8040.750.3280.9450.9310.7870.8431.0740.9530.7991.0970.7581.0761.1180.9470.8320.8490.887
Percentage of AllocatedShareBasedCompensationExpenseNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BusinessAcquisitionProFormaEarningsPerShareBasic us-gaap:BusinessAcquisition

us-gaap:BusinessAcquisitionProFormaEarningsPerShareBasic

uctt:HamLet


Business
Period End2021-06-252020-06-26
Value0.530.33
Percentage of BusinessAcquisitionProFormaEarningsPerShareBasic100.0100.0

us-gaap:BusinessAcquisitionProFormaEarningsPerShareDiluted us-gaap:BusinessAcquisition

us-gaap:BusinessAcquisitionProFormaEarningsPerShareDiluted

uctt:HamLet


Business
Period End2021-06-252020-06-26
Value0.520.32
Percentage of BusinessAcquisitionProFormaEarningsPerShareDiluted100.0100.0

us-gaap:BusinessAcquisitionsProFormaNetIncomeLoss us-gaap:BusinessAcquisition

us-gaap:BusinessAcquisitionsProFormaNetIncomeLoss

uctt:HamLet


Business
Period End2021-06-252020-06-26
Value2313
Percentage of BusinessAcquisitionsProFormaNetIncomeLoss100.0100.0

us-gaap:BusinessAcquisitionsProFormaRevenue us-gaap:BusinessAcquisition

us-gaap:BusinessAcquisitionsProFormaRevenue

uctt:HamLet


Business
Period End2021-06-252020-06-26
Value515391
Percentage of BusinessAcquisitionsProFormaRevenue100.0100.0

us-gaap:BusinessCombinationAcquisitionRelatedCosts us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationAcquisitionRelatedCosts

uctt:HamLet


Business
Period End2021-03-312021-06-25
Value108.1
Percentage of BusinessCombinationAcquisitionRelatedCosts100.0100.0

us-gaap:BusinessCombinationConsiderationTransferred1 us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationConsiderationTransferred1

uctt:HamLet


Business
Period End2021-03-31
Value362
Percentage of BusinessCombinationConsiderationTransferred1100.0

us-gaap:BusinessCombinationStepAcquisitionEquityInterestInAcquireeFairValue1 us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationStepAcquisitionEquityInterestInAcquireeFairValue1

uctt:HamLet


Business
Period End2021-03-31
Value273
Percentage of BusinessCombinationStepAcquisitionEquityInterestInAcquireeFairValue1100.0

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

us-gaap:ConcentrationRiskPercentage1

us-gaap:SalesRevenueNet, us-gaap:CustomerConcentrationRisk


Concentration
Period End2021-06-252021-03-262020-09-252020-06-262020-03-272019-09-272019-06-282019-03-292018-09-282018-06-292018-03-302017-09-292017-06-302017-03-312016-09-232016-06-242016-03-252015-09-252015-06-262015-03-272014-09-262014-06-272014-03-282013-09-272013-06-282013-03-29
Value62.469.268.10.6540.680.6190.6030.6050.7170.8350.8760.8360.8280.8560.8040.8240.7970.7580.8120.7560.7410.8250.790.8110.8020.884
Percentage of ConcentrationRiskPercentage1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

uctt:AppliedMaterialsInc, us-gaap:SalesRevenueNet, us-gaap:CustomerConcentrationRisk


Concentration
Period End2021-06-252021-03-262020-09-252020-06-262020-03-272019-09-272019-06-282019-03-292018-09-282018-06-292018-03-302017-09-292017-06-30
Value24.123.525.20.2580.2340.2430.1950.2090.230.2160.2140.2450.257
Percentage of ConcentrationRiskPercentage138.634.037.039.434.439.332.334.532.125.924.429.331.0

uctt:LamResearchCorporation, us-gaap:SalesRevenueNet, us-gaap:CustomerConcentrationRisk


Concentration
Period End2021-06-252021-03-262020-09-252020-06-262020-03-272019-09-272019-06-282019-03-292018-09-282018-06-292018-03-302017-09-292017-06-30
Value38.345.742.90.3960.4460.3760.4080.3960.4870.6190.6620.5910.571
Percentage of ConcentrationRiskPercentage161.466.063.060.665.660.767.765.567.974.175.670.769.0

uctt:LamResearchCorporationAppliedMaterialsIncAndAsmInternationalInc, us-gaap:AccountsReceivable, us-gaap:CustomerConcentrationRisk


Concentration
Period End2021-03-262020-03-272019-03-29
Value54.00.7040.711
Percentage of ConcentrationRiskPercentage178.0103.5117.5

us-gaap:DefinedBenefitPlanContributionsByEmployer

us-gaap:DefinedBenefitPlanContributionsByEmployer


Defined
Period End2021-06-252021-03-262020-12-25
Value9000.017000.01400000.0
Percentage of DefinedBenefitPlanContributionsByEmployer100.0100.0100.0

us-gaap:DefinedContributionPlanEmployerDiscretionaryContributionAmount

us-gaap:DefinedContributionPlanEmployerDiscretionaryContributionAmount


Defined
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-29
Value600000.0600000.0500000.0600000.0700000.0600000.01400000.0300000.0600000.0500000.0
Percentage of DefinedContributionPlanEmployerDiscretionaryContributionAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DepreciationAndAmortization

us-gaap:DepreciationAndAmortization


Depreciation
Period End2021-03-262020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-10-01
Value6.56.26.45.6925.3913.5626.8555.7342.8841.6011.3161.381.3091.3721.2141.7391.4411.4041.3971.2811.6110.9320.9040.7560.7520.7490.7470.770.810.7330.8060.8090.9230.7580.7050.7730.8110.7220.6390.6060.603
Percentage of DepreciationAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeGainLossOnDerivativeNet

us-gaap:DerivativeGainLossOnDerivativeNet


Derivative
Period End2021-03-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-06-302017-03-31
Value-11600000.0-3000000.0-6520000.03772000.0-1444000.01392000.0-180000.0271000.0-628000.0856000.0-309000.0-310000.0
Percentage of DerivativeGainLossOnDerivativeNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:IncomeStatementLocation

us-gaap:DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet

us-gaap:ForwardContracts, us-gaap:Nondesignated, us-gaap:OtherOperatingIncomeExpense


Derivative
Period End2021-06-252021-03-26
Value0-11600000.0
Percentage of DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet0.0100.0

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations


Effect
Period End2021-03-262020-06-262020-03-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-30
Value-800000.0100000.0-400000.0-1110000.0-2178000.0-145000.0281000.0-271000.0-96000.074000.0
Percentage of EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense

us-gaap:EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense


Employee
Period End2021-06-252021-03-262020-09-252020-06-262020-03-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-01
Value900000.0800000.0500000.0600000.0900000.02686000.03146000.01535000.01516000.0464000.0312000.0236000.0195000.0349000.0184000.0330000.0-1319000.0935000.0840000.0-259000.0310000.0293000.0146000.0286000.0226000.0206000.0176000.0166000.0173000.0201000.0223000.0245000.0341000.0279000.0305000.0275000.0237000.0277000.0
Percentage of EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInAccruedIncomeTaxesPayable

us-gaap:IncreaseDecreaseInAccruedIncomeTaxesPayable


Increase
Period End2021-03-262020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302015-12-252015-09-252015-06-262015-03-272014-06-272014-03-28
Value2800000.03300000.01600000.0-1427000.0733000.0-3472000.01266000.04767000.0-36000.0-1575000.0-2358000.03563000.0621000.01844000.02149000.0-466000.0732000.0-384000.0-296000.0-129000.0209000.01405000.0
Percentage of IncreaseDecreaseInAccruedIncomeTaxesPayable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInDeferredIncomeTaxes

us-gaap:IncreaseDecreaseInDeferredIncomeTaxes


Increase
Period End2021-03-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-27
Value-1200000.0-1000000.01485000.038000.02040000.037000.0150000.0-181000.067000.046000.03531000.0184000.0-18000.058000.0-2258000.0-492000.0-391000.0-393000.0-10548000.0878000.0-357000.0-325000.0-380000.0-1826000.097000.0-81000.0669000.0281000.0
Percentage of IncreaseDecreaseInDeferredIncomeTaxes100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInEmployeeRelatedLiabilities

us-gaap:IncreaseDecreaseInEmployeeRelatedLiabilities


Increase
Period End2021-03-262020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012010-12-312010-10-01
Value-3600000.02600000.0200000.0243000.05399000.0271000.03087000.0-8127000.06664000.0-1519000.0187000.0-1737000.01504000.0102000.02908000.0954000.0-213000.02202000.0-1546000.0666000.0-970000.01100000.02000.0237000.0-1831000.01383000.0-211000.01569000.0-887000.01854000.0-1417000.0-204000.0-1972000.0956000.0165000.0-428000.0-1906000.01267000.0181000.0306000.0-937000.0
Percentage of IncreaseDecreaseInEmployeeRelatedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherNoncurrentAssets

us-gaap:IncreaseDecreaseInOtherNoncurrentAssets


Increase
Period End2021-03-262020-06-262020-03-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-26
Value1000000.00-300000.0210000.0-377000.0943000.056000.0-16000.058000.0255000.096000.0149000.092000.0245000.019000.0-10000.028000.08000.012000.0-49000.07000.054000.0293000.0
Percentage of IncreaseDecreaseInOtherNoncurrentAssets100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherOperatingLiabilities

us-gaap:IncreaseDecreaseInOtherOperatingLiabilities


Increase
Period End2021-03-262020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302010-12-312010-10-01
Value6200000.0-2200000.04400000.02968000.03068000.0-921000.01185000.0-2151000.0-4238000.02180000.01723000.0-1045000.0920000.077000.0981000.0-4769000.0167000.0-333000.01578000.0-108000.01717000.0-345000.0340000.0-764000.0-451000.0-82000.0684000.0163000.0555000.0-237000.0-198000.03106000.0-3059000.0627000.0469000.0-4950000.01237000.0-2053000.01361000.0
Percentage of IncreaseDecreaseInOtherOperatingLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets


Increase
Period End2021-03-262020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012011-04-012011-01-042010-12-312010-10-01
Value-3000000.01400000.0200000.0-1706000.01711000.0-6135000.02430000.0-8906000.02734000.02469000.01089000.0525000.04399000.0233000.0-246000.0-460000.049000.0375000.0-1673000.0-352000.0-328000.0540000.01088000.0617000.0130000.01548000.0130000.0372000.0227000.0196000.0-127000.0-1790000.01042000.0600000.0-674000.0-3873000.01358000.02525000.0398000.02900000.0-390000.01217000.0
Percentage of IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements


Incremental
Period End2021-06-252021-03-262020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282012-12-282012-09-282012-06-292011-12-302011-09-302011-07-01
Value1000000.01000000.0700000.0700000.0900000.0-382000.0468000.0-29000.0323000.0-40000.0-61000.0489000.0761000.022000.0813000.0622000.0793000.0180000.0313000.0184000.0110000.0111000.0333000.0135000.0-27000.0206000.0664000.091000.0241000.0140000.0-21000.00101000.0-28000.059000.0170000.0
Percentage of IncrementalCommonSharesAttributableToShareBasedPaymentArrangements100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0

us-gaap:IndefinitelivedIntangibleAssetsAcquired us-gaap:IndefiniteLivedIntangibleAssetsByMajorClass

us-gaap:IndefinitelivedIntangibleAssetsAcquired

uctt:UctTradeName


Indefinitelived
Period End2021-06-252021-03-262020-12-25
Value09000000.00
Percentage of IndefinitelivedIntangibleAssetsAcquired0.0100.00.0

us-gaap:LeaseCost

us-gaap:LeaseCost


Lease
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-09-272019-06-282019-03-29
Value5.34.13.43.63.73.54.3633.6883.6
Percentage of LeaseCost100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LiabilitiesFairValueAdjustment us-gaap:FinancialInstrument

us-gaap:LiabilitiesFairValueAdjustment

uctt:CommonStockPurchaseObligation


Liabilities
Period End2020-09-25
Value200000.0
Percentage of LiabilitiesFairValueAdjustment100.0

us-gaap:LiabilitiesFairValueAdjustment us-gaap:RegulatoryLiability

us-gaap:PensionCosts


Liabilities
Period End2021-06-252021-03-262020-09-252020-06-262020-03-272019-09-27
Value500000.0300000.01500000.0-1200000.0500000.043000.0
Percentage of LiabilitiesFairValueAdjustment0.00.0750.00.00.00.0

us-gaap:LineOfCreditFacilityInterestRateDuringPeriod us-gaap:Range, us-gaap:StatementGeographical, us-gaap:CreditFacility, us-gaap:RelatedPartyTransactionsByRelatedParty

us-gaap:LineOfCreditFacilityInterestRateDuringPeriod

srt:Maximum, country:CN, us-gaap:RevolvingCreditFacility, uctt:CincosXianCleanTechnologyLtd


Line
Period End2021-06-252021-03-262020-09-25
Value04.14.1
Percentage of LineOfCreditFacilityInterestRateDuringPeriod0.0100.0100.0

srt:Maximum, country:KR, us-gaap:RevolvingCreditFacility, uctt:CinosCoLtd


Line
Period End2021-03-262020-12-252020-09-252020-06-262020-03-272019-12-27
Value3.705.363-0.0170.0540
Percentage of LineOfCreditFacilityInterestRateDuringPeriod90.20.0130.80.00.00.0

srt:Minimum, country:CN, us-gaap:RevolvingCreditFacility, uctt:CincosXianCleanTechnologyLtd


Line
Period End2021-06-252021-03-262020-09-25
Value02.01.9
Percentage of LineOfCreditFacilityInterestRateDuringPeriod0.048.846.3

srt:Minimum, country:KR, us-gaap:RevolvingCreditFacility, uctt:CinosCoLtd


Line
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-27
Value0.42.501.3750.0110.0140
Percentage of LineOfCreditFacilityInterestRateDuringPeriod0.061.00.033.50.00.00.0

us-gaap:NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1

us-gaap:NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1


Noncash
Period End2021-03-262020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-26
Value3500000.0-400000.02900000.0435000.0-571000.0-1982000.07118000.03825000.0-808000.0-111000.02686000.01044000.039000.0817000.0658000.0218000.0335000.02000.0146000.0-3378000.01901000.092000.01538000.0311000.0-42000.0
Percentage of NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NoncontrollingInterestIncreaseFromBusinessCombination

us-gaap:NoncontrollingInterestIncreaseFromBusinessCombination


Noncontrolling
Period End2021-06-252018-09-28
Value1.212
Percentage of NoncontrollingInterestIncreaseFromBusinessCombination100.0100.0

us-gaap:NoncontrollingInterestIncreaseFromBusinessCombination us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest


Noncontrolling
Period End2021-06-252018-09-28
Value1.212
Percentage of NoncontrollingInterestIncreaseFromBusinessCombination100.0100.0

us-gaap:OperatingLeaseCost

us-gaap:OperatingLeaseCost


Operating
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-09-272019-06-282019-03-29
Value4.83.73.23.33.43.23.7263.2653.4
Percentage of OperatingLeaseCost100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingLeasePayments

us-gaap:OperatingLeasePayments


Operating
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-09-272019-06-282019-03-29
Value5.53.74.23.94.44.43.4873.673.4
Percentage of OperatingLeasePayments100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent

us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent


Other
Period End2021-06-252021-03-262020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-25
Value2200000.0-2800000.02000000.01200000.0-3200000.03380000.0-1626000.0-1287000.0-867000.0-664000.0-193000.0-799000.0336000.0192000.0312000.0591000.098000.0-518000.050000.0-21000.097000.0-72000.067000.0
Percentage of OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest


Other
Period End2021-06-252021-03-262020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-28
Value900000.0600000.0700000.0800000.01100000.0628000.0375000.0-52000.0800000.0437000.0-37000.0
Percentage of OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent


Other
Period End2020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-25
Value2000000.01300000.0-3300000.03102000.0-1694000.0-1232000.0-876000.0-467000.0-491000.0-894000.0-541000.0296000.0545000.01270000.0118000.0-460000.097000.0-61000.060000.02000.0-20000.0
Percentage of OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship

us-gaap:OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax

us-gaap:ForwardContracts, us-gaap:CashFlowHedging


Other
Period End2021-06-252021-03-26
Value600000.0700000.0
Percentage of OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax100.0100.0

us-gaap:OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax

us-gaap:OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax


Other
Period End2021-06-252021-03-262020-06-262020-03-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-25
Value800000.0-700000.0100000.0-100000.0-44000.077000.015000.0-8000.039000.0-71000.09000.0248000.0333000.0679000.013000.041000.027000.0-64000.0-64000.0114000.0-91000.0
Percentage of OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherNoncashExpense

us-gaap:OtherNoncashExpense


Other
Period End2021-03-26
Value100000.0
Percentage of OtherNoncashExpense100.0

us-gaap:ProceedsFromBankDebt

us-gaap:ProceedsFromBankDebt


Proceeds
Period End2021-03-262020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-26
Value6.69.0516.9956.693216.5874.8736011106.9042.9674.2051.02.1342.4710.4151.6372.2310.7920.07613
Percentage of ProceedsFromBankDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0

us-gaap:ProceedsFromIncomeTaxRefunds

us-gaap:ProceedsFromIncomeTaxRefunds


Proceeds
Period End2021-03-262020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252014-12-262014-09-262013-12-272013-09-272012-12-282012-09-282011-12-302011-09-302010-12-312010-10-01
Value2.72.62.0140.00.00.0370.004-0.0040.0380.0050.0460.00.00.0250.055-0.0070.00.5980.00.00.00.01.343-1.310.3230.0-0.0010.0
Percentage of ProceedsFromIncomeTaxRefunds100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.00.0100.00.00.00.00.0100.0100.0100.00.0100.00.0

us-gaap:ProceedsFromIssuanceInitialPublicOffering us-gaap:SubsidiarySaleOfStock

us-gaap:ProceedsFromIssuanceInitialPublicOffering

uctt:UnderwrittenPublicOfferings


Proceeds
Period End2021-04-13
Value167
Percentage of ProceedsFromIssuanceInitialPublicOffering100.0

us-gaap:ProceedsFromIssuanceOfCommonStock us-gaap:SubsequentEventType, us-gaap:SubsidiarySaleOfStock

us-gaap:ProceedsFromIssuanceOfCommonStock

us-gaap:SubsequentEvent, uctt:UnderwrittenPublicOffering


Proceeds
Period End2021-04-132018-02-02
Value16794
Percentage of ProceedsFromIssuanceOfCommonStock100.0100.0

us-gaap:ProceedsFromIssuanceOfCommonStock us-gaap:SubsidiarySaleOfStock

uctt:UnderwrittenPublicOfferings


Proceeds
Period End2021-04-13
Value167
Percentage of ProceedsFromIssuanceOfCommonStock100.0

us-gaap:ProceedsFromIssuanceOfSecuredDebt dei:LegalEntity, us-gaap:CreditFacility

us-gaap:ProceedsFromIssuanceOfSecuredDebt

uctt:BarclaysBankPLC, uctt:TermLoanCreditFacility


Proceeds
Period End2021-03-312018-08-31
Value272350
Percentage of ProceedsFromIssuanceOfSecuredDebt100.0100.0

us-gaap:ProceedsFromIssuanceOfSecuredDebt dei:LegalEntity, us-gaap:SubsequentEventType

uctt:HamLet, us-gaap:SubsequentEvent


Proceeds
Period End2021-03-31
Value273
Percentage of ProceedsFromIssuanceOfSecuredDebt100.1

us-gaap:ProceedsFromIssuanceOfSecuredDebt dei:LegalEntity, us-gaap:SubsequentEventType, us-gaap:TypeOfArrangement

uctt:HamLet, us-gaap:SubsequentEvent, uctt:SeniorSecuredTermLoanBFacility


Proceeds
Period End2021-03-31
Value355
Percentage of ProceedsFromIssuanceOfSecuredDebt130.1

us-gaap:ProceedsFromIssuanceOfSecuredDebt us-gaap:BusinessAcquisition

uctt:HamLet


Proceeds
Period End2021-03-31
Value355
Percentage of ProceedsFromIssuanceOfSecuredDebt130.1

us-gaap:ProceedsFromRepaymentsOfDebt us-gaap:BusinessAcquisition

us-gaap:ProceedsFromRepaymentsOfDebt

uctt:HamLet


Proceeds
Period End2021-03-31
Value1900000.0
Percentage of ProceedsFromRepaymentsOfDebt100.0

uctt:HamLetIsraelCanadaLtd


Proceeds
Period End2021-03-31
Value1900000.0
Percentage of ProceedsFromRepaymentsOfDebt100.0

us-gaap:ProceedsFromSaleOfInsuranceInvestments

us-gaap:ProceedsFromSaleOfInsuranceInvestments


Proceeds
Period End2021-03-26
Value7300000.0
Percentage of ProceedsFromSaleOfInsuranceInvestments100.0

us-gaap:RestructuringCharges

us-gaap:RestructuringCharges


Restructuring
Period End2020-09-252020-06-262020-03-27
Value0.00.90.8
Percentage of RestructuringCharges0.0100.0100.0

us-gaap:SaleOfStockConsiderationReceivedOnTransaction

us-gaap:SaleOfStockConsiderationReceivedOnTransaction


Sale
Period End2021-04-13
Value25
Percentage of SaleOfStockConsiderationReceivedOnTransaction100.0

us-gaap:SaleOfStockConsiderationReceivedOnTransaction us-gaap:SubsequentEventType

us-gaap:SubsequentEvent


Sale
Period End2021-04-13
Value25
Percentage of SaleOfStockConsiderationReceivedOnTransaction100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue

us-gaap:RestrictedStockUnitsRSU


Share
Period End2021-06-252021-03-262020-09-252020-06-262020-03-272019-09-272019-06-282019-03-292018-09-282018-03-302017-09-292017-06-302016-09-232016-06-242016-03-252015-09-252015-06-262015-03-272014-09-262014-06-282014-06-272014-03-282013-09-272013-06-282013-03-292012-09-282012-06-292012-03-302011-09-302011-07-012011-01-04
Value49.8642.0822.39-6.1624.013.0912.268.9815.5219.5722.6219.86.25.895.316.716.538.689.39.489.4813.166.876.065.3906.418.21011.210.3
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.00.0100.0100.0

us-gaap:ShortTermLeaseCost

us-gaap:ShortTermLeaseCost


Short
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-09-272019-06-282019-03-29
Value500000.0400000.0300000.0300000.0300000.0300000.0479000.0394000.0200000.0
Percentage of ShortTermLeaseCost100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodSharesEmployeeStockOwnershipPlan us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodSharesEmployeeStockOwnershipPlan

us-gaap:CommonStock


Stock
Period End2020-09-252020-06-262019-12-272019-09-272019-06-282019-03-292018-09-282018-06-292018-03-30
Value200000.00.50273460.0296550.0296140.097358.0248490.0387070.0
Percentage of StockIssuedDuringPeriodSharesEmployeeStockOwnershipPlan100.0100.00.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueEmployeeStockOwnershipPlan

us-gaap:StockIssuedDuringPeriodValueEmployeeStockOwnershipPlan


Stock
Period End2021-06-252020-12-252020-09-252020-06-262019-12-272019-06-282018-06-29
Value300000.0400000.0-100000.0300000.0200000.0125000.0144000.0
Percentage of StockIssuedDuringPeriodValueEmployeeStockOwnershipPlan100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueEmployeeStockOwnershipPlan us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stock
Period End2021-06-252020-12-252020-09-252020-06-262019-12-272019-06-282018-06-29
Value300000.0400000.0-100000.0300000.0200000.0125000.0144000.0
Percentage of StockIssuedDuringPeriodValueEmployeeStockOwnershipPlan100.0100.0100.0100.0100.0100.0100.0

us-gaap:Parent


Stock
Period End2021-06-252020-12-252020-09-252020-06-262019-12-272019-06-28
Value300000.0400000.0-100000.0300000.0200000.0100000.0
Percentage of StockIssuedDuringPeriodValueEmployeeStockOwnershipPlan100.0100.0100.0100.0100.080.0

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation us-gaap:AwardType

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation

us-gaap:PerformanceShares


Stock
Period End2021-06-252021-03-262020-09-252020-06-262020-03-272019-09-272019-06-282019-03-292018-09-282018-06-292018-03-302017-09-292017-06-302017-03-312016-09-23
Value1114-2.07.313-1.55.7135.8-2.6144.63.25.3-1.4
Percentage of StockIssuedDuringPeriodValueShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestrictedStockUnitsRSU


Stock
Period End2021-06-252021-03-262020-09-252020-06-262020-03-272019-09-272019-06-282019-03-292018-09-282018-06-292018-03-302017-09-292017-06-302017-03-312016-09-23
Value1114-2.07.313-1.55.7135.8-2.6144.63.25.3-1.4
Percentage of StockIssuedDuringPeriodValueShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised us-gaap:SubsidiarySaleOfStock

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised

uctt:UnderwrittenPublicOfferings


Stock
Period End2021-04-13
Value25
Percentage of StockIssuedDuringPeriodValueStockOptionsExercised100.0

uctt:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAccruedCompensationAndRelatedBenefits

uctt:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAccruedCompensationAndRelatedBenefits


Business
Period End2021-03-31
Value10
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAccruedCompensationAndRelatedBenefits100.0

uctt:BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedOperatingLeaseRightOfUseAssets

uctt:BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedOperatingLeaseRightOfUseAssets


Business
Period End2021-03-31
Value27
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedOperatingLeaseRightOfUseAssets100.0

uctt:DeferredTaxAssetsIntangibleAssets us-gaap:BalanceSheetLocation

uctt:DeferredTaxAssetsIntangibleAssets

uctt:DeferredTaxAssetsNoncurrent


Deferred
Period End2020-12-252019-12-272018-12-282017-12-292016-12-302015-12-252014-12-26
Value127.86.2863.3875.1053.7994.306
Percentage of DeferredTaxAssetsIntangibleAssets100.0100.0100.0100.0100.0100.0100.0

uctt:DeferredTaxAssetsInterestExpenseLimitation us-gaap:BalanceSheetLocation

uctt:DeferredTaxAssetsInterestExpenseLimitation

uctt:DeferredTaxAssetsNoncurrent


Deferred
Period End2020-12-252019-12-272018-12-28
Value6800000.05800000.0100000.0
Percentage of DeferredTaxAssetsInterestExpenseLimitation100.0100.0100.0

uctt:DeferredTaxAssetsOperatingLeaseLiabilities us-gaap:BalanceSheetLocation

uctt:DeferredTaxAssetsOperatingLeaseLiabilities

uctt:DeferredTaxAssetsNoncurrent


Deferred
Period End2020-12-252019-12-27
Value10000000.09000000.0
Percentage of DeferredTaxAssetsOperatingLeaseLiabilities100.0100.0

uctt:DeferredTaxLiabilitiesGoodwill

uctt:DeferredTaxLiabilitiesGoodwill


Deferred
Period End2020-12-252019-12-272018-12-282017-12-292016-12-302015-12-252014-12-26
Value128.46.9446.4937.5565.6493.741
Percentage of DeferredTaxLiabilitiesGoodwill100.0100.0100.0100.0100.0100.0100.0

uctt:DeferredTaxLiabilitiesIntangibleLiabilities

uctt:DeferredTaxLiabilitiesIntangibleLiabilities


Deferred
Period End2020-12-252019-12-27
Value6700000.05800000.0
Percentage of DeferredTaxLiabilitiesIntangibleLiabilities100.0100.0

uctt:DeferredTaxLiabilitiesOperatingLeaseRightOfUseAsset

uctt:DeferredTaxLiabilitiesOperatingLeaseRightOfUseAsset


Deferred
Period End2020-12-252019-12-27
Value8500000.07200000.0
Percentage of DeferredTaxLiabilitiesOperatingLeaseRightOfUseAsset100.0100.0

uctt:FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFour

uctt:FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFour


Finite
Period End2021-06-252021-03-262020-09-25
Value1347284
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFour100.0100.0100.0

uctt:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour

uctt:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour


Lessee
Period End2021-06-252021-03-262020-09-25
Value228.89.2
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour100.0100.0100.0

uctt:PropertyPlantAndEquipmentNetExcludingConstructionInProgress

uctt:PropertyPlantAndEquipmentNetExcludingConstructionInProgress


Property
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-12-202017-09-292017-06-302017-03-312016-12-30
Value2652112081971911861781261281261701231819185715151514
Percentage of PropertyPlantAndEquipmentNetExcludingConstructionInProgress100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

uctt:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedAggregateGrantDateFairValue us-gaap:AwardType

uctt:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedAggregateGrantDateFairValue

us-gaap:PerformanceShares


Share
Period End2021-06-252021-03-262020-09-252020-06-262020-03-272019-09-272019-06-282019-03-292018-09-282018-06-292018-03-302017-09-292017-06-302017-03-312016-09-232016-06-24
Value75933543272629152220285026209.99.2
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedAggregateGrantDateFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestrictedStockUnitsRSU


Share
Period End2021-06-252021-03-262020-09-252020-06-262020-03-272019-09-272019-06-282019-03-292018-09-282018-06-292018-03-302017-09-292017-06-302017-03-312016-09-232016-06-242015-09-25
Value75933543272629152220285026209.99.26.8
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedAggregateGrantDateFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

uctt:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedAndExpectedToVestAggregateIntrinsicValue us-gaap:AwardType

uctt:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedAndExpectedToVestAggregateIntrinsicValue

uctt:RestrictedStockUnitsAndRestrictedStockAwards


Share
Period End2020-12-25
Value54
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedAndExpectedToVestAggregateIntrinsicValue100.0

uctt:RestrictedStockUnitsPerformanceStockUnitsAndRestrictedStockAwards


Share
Period End2021-06-252021-03-262020-09-25
Value679536
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedAndExpectedToVestAggregateIntrinsicValue0.00.00.0

uctt:StockPurchaseObligationFairValue us-gaap:BusinessAcquisition

uctt:StockPurchaseObligationFairValue

uctt:QuantumGlobalTechnologiesLLC


Stock
Period End2021-03-262020-12-252020-09-25
Value12128.2
Percentage of StockPurchaseObligationFairValue100.0100.0100.0

us-gaap:AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax


Accumulated
Period End2021-06-252021-03-262020-12-252020-09-252019-12-27
Value500000.0500000.0500000.0500000.01700000.0
Percentage of AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax100.0100.0100.0100.0100.0

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent


Allowance
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-292019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012010-12-31
Value500000.0200000.0300000.0300000.0200000.0200000.0300000.0306000.0267000.085000.0123000.0235000.067000.0103000.069000.044000.084000.082000.065000.042000.0159000.0159000.0158000.0132000.0107000.081000.081000.0121000.046000.05000.05000.05000.05000.087000.08000.08000.08000.05000.05000.044000.0125000.0125000.0
Percentage of AllowanceForDoubtfulAccountsReceivableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AssetsFairValueDisclosure us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FinancialInstrument

us-gaap:AssetsFairValueDisclosure

us-gaap:FairValueInputsLevel2, us-gaap:ForwardContracts


Assets
Period End2020-12-252019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-30
Value1100000.033000.0188000.0141000.0240000.0411000.0457000.01281000.01302000.01097000.0841000.0
Percentage of AssetsFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueInputsLevel3, uctt:PurchaseOption


Assets
Period End2021-06-25
Value1100000.0
Percentage of AssetsFairValueDisclosure0.0

us-gaap:AssetsFairValueDisclosure us-gaap:FinancialInstrument

uctt:PurchaseOption


Assets
Period End2021-06-25
Value1100000.0
Percentage of AssetsFairValueDisclosure0.0

us-gaap:ForwardContracts


Assets
Period End2020-12-252019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-30
Value1100000.033000.0188000.0141000.0240000.0411000.0457000.01281000.01302000.01097000.0841000.0
Percentage of AssetsFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BusinessCombinationAcquisitionOfLessThan100PercentNoncontrollingInterestFairValue

us-gaap:BusinessCombinationAcquisitionOfLessThan100PercentNoncontrollingInterestFairValue


Business
Period End2021-03-31
Value1200000.0
Percentage of BusinessCombinationAcquisitionOfLessThan100PercentNoncontrollingInterestFairValue100.0

us-gaap:BusinessCombinationContingentConsiderationLiability us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FinancialInstrument

us-gaap:BusinessCombinationContingentConsiderationLiability

us-gaap:FairValueInputsLevel3, uctt:CommonStockPurchaseObligation


Business
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-27
Value1412128.28.07.06.88.5
Percentage of BusinessCombinationContingentConsiderationLiability100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueInputsLevel3, uctt:PurchaseOption


Business
Period End2021-06-25
Value1.1
Percentage of BusinessCombinationContingentConsiderationLiability7.9

us-gaap:BusinessCombinationContingentConsiderationLiability us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:RegulatoryLiability

us-gaap:FairValueInputsLevel3, uctt:PensionObligation


Business
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-27
Value5.55.04.75.23.74.94.43.336
Percentage of BusinessCombinationContingentConsiderationLiability39.339.737.363.446.270.064.739.2

us-gaap:BusinessCombinationContingentConsiderationLiabilityMeasurementInput us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FinancialInstrument, us-gaap:MeasurementInputType

us-gaap:BusinessCombinationContingentConsiderationLiabilityMeasurementInput

us-gaap:FairValueInputsLevel3, uctt:CommonStockPurchaseObligation, us-gaap:MeasurementInputRevenueMultiple


Business
Period End2020-09-252020-06-262020-03-272019-12-27
Value1.50.0150.0130.013
Percentage of BusinessCombinationContingentConsiderationLiabilityMeasurementInput100.0100.0100.0100.0

us-gaap:FairValueInputsLevel3, uctt:PurchaseOption, uctt:MeasurementInputVolatility


Business
Period End2021-06-25
Value65.0
Percentage of BusinessCombinationContingentConsiderationLiabilityMeasurementInput0.0

us-gaap:BusinessCombinationContingentConsiderationLiabilityMeasurementInput us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:MeasurementInputType

us-gaap:FairValueInputsLevel3, uctt:MeasurementInputRateOnReturn


Business
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-27
Value2.52.41.11.70.0170.0150.0137
Percentage of BusinessCombinationContingentConsiderationLiabilityMeasurementInput0.00.00.0113.3113.3115.4105.4

us-gaap:FairValueInputsLevel3, uctt:MeasurementInputSalaryIncreaseRate


Business
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-27
Value4.04.04.04.50.0450.0450.04420.0442
Percentage of BusinessCombinationContingentConsiderationLiabilityMeasurementInput0.00.00.0300.0300.0346.2340.00.0

us-gaap:FairValueInputsLevel3, uctt:MeasurementInputStockPrice


Business
Period End2021-06-25
Value1.2
Percentage of BusinessCombinationContingentConsiderationLiabilityMeasurementInput0.0

us-gaap:FairValueInputsLevel3, uctt:MeasurementInputStrikePrice


Business
Period End2021-06-25
Value0.1
Percentage of BusinessCombinationContingentConsiderationLiabilityMeasurementInput0.0

us-gaap:FairValueInputsLevel3, us-gaap:MeasurementInputDiscountRate


Business
Period End2020-09-252020-06-26
Value25.00.25
Percentage of BusinessCombinationContingentConsiderationLiabilityMeasurementInput1666.71666.7

us-gaap:FairValueInputsLevel3, us-gaap:MeasurementInputEbitdaMultiple


Business
Period End2020-09-252020-06-262020-03-272019-12-27
Value5.50.050.050.08
Percentage of BusinessCombinationContingentConsiderationLiabilityMeasurementInput366.7333.3384.6615.4

us-gaap:FairValueInputsLevel3, us-gaap:MeasurementInputRiskFreeInterestRate


Business
Period End2021-06-25
Value0.03
Percentage of BusinessCombinationContingentConsiderationLiabilityMeasurementInput0.0

us-gaap:BusinessCombinationContingentConsiderationLiabilityMeasurementInput us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:MeasurementInputType, us-gaap:RegulatoryLiability

us-gaap:FairValueInputsLevel3, us-gaap:MeasurementInputDiscountRate, us-gaap:PensionCosts


Business
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-27
Value2.12.12.12.00.020.02
Percentage of BusinessCombinationContingentConsiderationLiabilityMeasurementInput0.00.00.0133.3133.3153.8

us-gaap:BusinessCombinationContingentConsiderationLiabilityMeasurementInput us-gaap:Range, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FinancialInstrument, us-gaap:MeasurementInputType

srt:Maximum, us-gaap:FairValueInputsLevel3, uctt:CommonStockPurchaseObligation, us-gaap:MeasurementInputRevenueMultiple


Business
Period End2021-06-252021-03-262020-12-25
Value0.0170.0170.02
Percentage of BusinessCombinationContingentConsiderationLiabilityMeasurementInput0.00.00.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets


Business
Period End2021-03-31
Value462
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents


Business
Period End2021-03-31
Value20
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents dei:LegalEntity

uctt:HamLet


Business
Period End2021-03-31
Value351
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents1746.3

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets


Business
Period End2021-03-31
Value17
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables


Business
Period End2021-03-31
Value51
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable


Business
Period End2021-03-31
Value30
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesLongTermDebt

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesLongTermDebt


Business
Period End2021-03-31
Value5000000.0
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesLongTermDebt100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther


Business
Period End2021-03-31
Value12
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxAssets

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxAssets


Business
Period End2021-03-31
Value800000.0
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxAssets100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilities

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilities


Business
Period End2021-03-31
Value12
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilities100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles


Business
Period End2021-03-31
Value124
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles us-gaap:BusinessAcquisition

uctt:HamLet


Business
Period End2021-06-25
Value124
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles0.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles us-gaap:BusinessAcquisition, us-gaap:FiniteLivedIntangibleAssetsByMajorClass

uctt:HamLet, uctt:Backlog


Business
Period End2021-06-25
Value5.2
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles0.0

uctt:HamLet, us-gaap:CustomerRelationships


Business
Period End2021-06-25
Value73
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles0.0

uctt:HamLet, us-gaap:TradeNames


Business
Period End2021-06-25
Value9.8
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles0.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles us-gaap:Range, us-gaap:BusinessAcquisition, us-gaap:FiniteLivedIntangibleAssetsByMajorClass

srt:Minimum, uctt:HamLet, us-gaap:IntellectualProperty


Business
Period End2021-06-25
Value35
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles0.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory


Business
Period End2021-03-31
Value80
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities


Business
Period End2021-03-31
Value98
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet

uctt:HamLetIsraelCanadaLtd


Business
Period End2021-03-31
Value362
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther


Business
Period End2021-03-31
Value4.0
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets


Business
Period End2021-03-31
Value2200000.0
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment


Business
Period End2021-03-31
Value52
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedLessNoncontrollingInterest

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedLessNoncontrollingInterest


Business
Period End2021-03-31
Value362
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedLessNoncontrollingInterest100.0

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations


Cash
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-262019-12-252019-09-272019-06-282019-03-292018-12-272018-09-282018-06-292018-03-302017-12-292016-12-302015-12-25
Value451264200176214208162162158168154144160141162685250
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CustomerRefundLiabilityCurrent us-gaap:BalanceSheetLocation

us-gaap:CustomerRefundLiabilityCurrent

uctt:AccruedExpenses


Customer
Period End2020-09-25
Value2400000.0
Percentage of CustomerRefundLiabilityCurrent100.0

us-gaap:AccountsReceivable


Customer
Period End2021-06-252021-03-262020-12-25
Value5700000.03400000.03400000.0
Percentage of CustomerRefundLiabilityCurrent0.00.00.0

us-gaap:DebtInstrumentCarryingAmount us-gaap:BusinessAcquisition

us-gaap:DebtInstrumentCarryingAmount

uctt:HamLet


Debt
Period End2021-06-25
Value8.4
Percentage of DebtInstrumentCarryingAmount100.0

us-gaap:DebtInstrumentCarryingAmount us-gaap:StatementGeographical, us-gaap:BusinessAcquisition, us-gaap:CreditFacility, us-gaap:DebtInstrument

country:CZ, uctt:UCTFluidDeliverySolutionsSRO, us-gaap:RevolvingCreditFacility, uctt:BankDebt


Debt
Period End2020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-29
Value0.30.51.31.71.90.32.52.46.06.5
Percentage of DebtInstrumentCarryingAmount0.00.00.00.00.00.00.00.00.00.0

us-gaap:DebtInstrumentCarryingAmount us-gaap:StatementGeographical, us-gaap:DebtInstrument, us-gaap:RelatedPartyTransactionsByRelatedParty

country:CN, uctt:BankDebt, uctt:CincosXianCleanTechnologyLtd


Debt
Period End2021-06-252021-03-262020-12-252020-09-252020-06-26
Value2.72.41.90.30.3
Percentage of DebtInstrumentCarryingAmount32.10.00.00.00.0

us-gaap:DebtInstrumentInterestRateEffectivePercentage us-gaap:CreditFacility

us-gaap:DebtInstrumentInterestRateEffectivePercentage

uctt:TermLoan


Debt
Period End2020-12-252020-09-25
Value4.654.7
Percentage of DebtInstrumentInterestRateEffectivePercentage100.0100.0

us-gaap:DeferredIncomeTaxAssetsNet

us-gaap:DeferredIncomeTaxAssetsNet


Deferred
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262019-12-27
Value232223151515
Percentage of DeferredIncomeTaxAssetsNet100.0100.0100.0100.0100.0100.0

us-gaap:DeferredIncomeTaxLiabilities

us-gaap:DeferredIncomeTaxLiabilities


Deferred
Period End2020-12-252019-12-272018-12-28
Value332515
Percentage of DeferredIncomeTaxLiabilities100.0100.0100.0

us-gaap:DeferredTaxAssetsGross us-gaap:BalanceSheetLocation

us-gaap:DeferredTaxAssetsGross

uctt:DeferredTaxAssetsNoncurrent


Deferred
Period End2020-12-252019-12-27
Value4941
Percentage of DeferredTaxAssetsGross100.0100.0

us-gaap:DeferredTaxAssetsInventory us-gaap:BalanceSheetLocation

us-gaap:DeferredTaxAssetsInventory

uctt:DeferredTaxAssetsNoncurrent


Deferred
Period End2020-12-252019-12-272018-12-282017-12-292016-12-302015-12-25
Value3900000.03400000.03305000.02703000.03359000.02999000.0
Percentage of DeferredTaxAssetsInventory100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsOperatingLossCarryforwards us-gaap:BalanceSheetLocation

us-gaap:DeferredTaxAssetsOperatingLossCarryforwards

uctt:DeferredTaxAssetsNoncurrent


Deferred
Period End2020-12-252019-12-272018-12-282017-12-292016-12-302015-12-252014-12-262013-12-272012-12-282011-12-30
Value6400000.06400000.02239000.03055000.09588000.07281000.01934000.02029000.02271000.01853000.0
Percentage of DeferredTaxAssetsOperatingLossCarryforwards100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsOther us-gaap:BalanceSheetLocation

us-gaap:DeferredTaxAssetsOther

uctt:DeferredTaxAssetsNoncurrent


Deferred
Period End2020-12-252019-12-272018-12-282017-12-29
Value4900000.04500000.03363000.01148000.0
Percentage of DeferredTaxAssetsOther100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsStateTaxes us-gaap:BalanceSheetLocation

us-gaap:DeferredTaxAssetsStateTaxes

uctt:DeferredTaxAssetsNoncurrent


Deferred
Period End2020-12-252019-12-272018-12-282017-12-292016-12-302015-12-252013-12-27
Value200000.0500000.0369000.050000.049000.050000.0-715000.0
Percentage of DeferredTaxAssetsStateTaxes100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxCreditCarryforwards us-gaap:BalanceSheetLocation

us-gaap:DeferredTaxAssetsTaxCreditCarryforwards

uctt:DeferredTaxAssetsNoncurrent


Deferred
Period End2020-12-252019-12-272018-12-28
Value2600000.02200000.0600000.0
Percentage of DeferredTaxAssetsTaxCreditCarryforwards100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost us-gaap:BalanceSheetLocation

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost

uctt:DeferredTaxAssetsNoncurrent


Deferred
Period End2020-12-252019-12-272018-12-282017-12-292016-12-30
Value1700000.01700000.01679000.01398000.01788000.0
Percentage of DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment


Deferred
Period End2020-12-252019-12-272018-12-28
Value5000000.03300000.06400000.0
Percentage of DeferredTaxLiabilitiesPropertyPlantAndEquipment100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesUndistributedForeignEarnings

us-gaap:DeferredTaxLiabilitiesUndistributedForeignEarnings


Deferred
Period End2020-12-252019-12-272018-12-282017-12-292016-12-302015-12-252014-12-262013-12-27
Value500000.0500000.02516000.02516000.01126000.0507000.0526000.0400000.0
Percentage of DeferredTaxLiabilitiesUndistributedForeignEarnings100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanBenefitObligation

us-gaap:DefinedBenefitPlanBenefitObligation


Defined
Period End2021-06-252021-03-262020-12-252020-09-25
Value9600000.09700000.09700000.08700000.0
Percentage of DefinedBenefitPlanBenefitObligation100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter


Defined
Period End2021-06-252021-03-262020-12-252020-09-25
Value5700000.05700000.05900000.04600000.0
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths


Defined
Period End2021-03-262020-12-252020-09-25
Value700000.0900000.0200000.0
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths100.0100.0100.0

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive


Defined
Period End2021-06-252021-03-262020-12-252020-09-25
Value900000.01000000.01000000.01000000.0
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour


Defined
Period End2021-06-252021-03-262020-12-252020-09-25
Value1000000.01000000.01000000.0900000.0
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree


Defined
Period End2021-06-252021-03-262020-12-252020-09-25
Value2300000.02300000.02300000.02200000.0
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo


Defined
Period End2021-06-252021-03-262020-12-252020-09-25
Value900000.01000000.01000000.01100000.0
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanFairValueOfPlanAssets

us-gaap:DefinedBenefitPlanFairValueOfPlanAssets


Defined
Period End2021-06-252021-03-262020-12-252020-09-25
Value5900000.06400000.06700000.05100000.0
Percentage of DefinedBenefitPlanFairValueOfPlanAssets100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanFundedStatusOfPlan

us-gaap:DefinedBenefitPlanFundedStatusOfPlan


Defined
Period End2021-06-252021-03-262020-12-252020-09-25
Value3700000.03300000.03000000.03600000.0
Percentage of DefinedBenefitPlanFundedStatusOfPlan100.0100.0100.0100.0

us-gaap:DerivativeAssetFairValueGrossLiability us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities, us-gaap:BalanceSheetLocation, us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:DerivativeAssetFairValueGrossLiability

us-gaap:ForwardContracts, us-gaap:OtherCurrentLiabilities, us-gaap:FairValueInputsLevel2


Derivative
Period End2021-03-26
Value700000.0
Percentage of DerivativeAssetFairValueGrossLiability100.0

us-gaap:ForwardContracts, us-gaap:PrepaidExpensesAndOtherCurrentAssets, us-gaap:FairValueInputsLevel2


Derivative
Period End2021-06-25
Value100000.0
Percentage of DerivativeAssetFairValueGrossLiability0.0

us-gaap:DerivativeAssetFairValueGrossLiability us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities, us-gaap:BalanceSheetLocation, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:HedgingDesignation

us-gaap:ForwardContracts, us-gaap:OtherCurrentLiabilities, us-gaap:FairValueInputsLevel2, us-gaap:DesignatedAsHedgingInstrument


Derivative
Period End2021-03-26
Value700000.0
Percentage of DerivativeAssetFairValueGrossLiability100.0

us-gaap:ForwardContracts, us-gaap:PrepaidExpensesAndOtherCurrentAssets, us-gaap:FairValueInputsLevel2, us-gaap:DesignatedAsHedgingInstrument


Derivative
Period End2021-06-25
Value100000.0
Percentage of DerivativeAssetFairValueGrossLiability0.0

us-gaap:DerivativeFairValueOfDerivativeAsset us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities, us-gaap:BalanceSheetLocation, us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:DerivativeFairValueOfDerivativeAsset

us-gaap:ForwardContracts, us-gaap:PrepaidExpensesAndOtherCurrentAssets, us-gaap:FairValueInputsLevel2


Derivative
Period End2020-12-25
Value1100000.0
Percentage of DerivativeFairValueOfDerivativeAsset100.0

us-gaap:DerivativeFairValueOfDerivativeAsset us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities, us-gaap:BalanceSheetLocation, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:HedgingDesignation

us-gaap:ForwardContracts, us-gaap:PrepaidExpensesAndOtherCurrentAssets, us-gaap:FairValueInputsLevel2, us-gaap:Nondesignated


Derivative
Period End2020-12-25
Value1100000.0
Percentage of DerivativeFairValueOfDerivativeAsset100.0

us-gaap:DerivativeInstrumentsAndHedgesLiabilitiesNoncurrent us-gaap:DerivativeInstrumentRisk

us-gaap:DerivativeInstrumentsAndHedgesLiabilitiesNoncurrent

us-gaap:ForeignExchangeContract


Derivative
Period End2021-03-26
Value10
Percentage of DerivativeInstrumentsAndHedgesLiabilitiesNoncurrent100.0

us-gaap:EmployeeRelatedLiabilitiesCurrent

us-gaap:EmployeeRelatedLiabilitiesCurrent


Employee
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012010-12-31
Value4330343027252424191815189.41611101210107.9046.9927.1995.06.5365.8826.415.315.3085.0716.9025.5195.734.1615.0483.1944.6114.0613.9242.9682.8033.2315.1373.689
Percentage of EmployeeRelatedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions us-gaap:TitleOfIndividual, us-gaap:AwardType

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions

uctt:Employees, uctt:RestrictedStockUnitsAndRestrictedStockAwards


Employee
Period End2020-12-252019-12-27
Value1615
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions100.0100.0

uctt:NonEmployeeDirectors, us-gaap:RestrictedStock


Employee
Period End2021-06-252021-03-262020-09-25
Value0.80.10.6
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions0.00.00.0

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions


Employee
Period End2020-12-252019-12-27
Value1615
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions100.0100.0

us-gaap:EquityFairValueDisclosure us-gaap:BusinessAcquisition

us-gaap:EquityFairValueDisclosure

uctt:HamLetIsraelCanadaLtd


Equity
Period End2021-03-31
Value273
Percentage of EquityFairValueDisclosure100.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue us-gaap:FinancialInstrument

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue

uctt:CommonStockPurchaseObligation


Fair
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262019-12-272018-12-28
Value1412128.28.06.88.5
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue100.0100.0100.0100.0100.0100.0100.0

uctt:PurchaseOption


Fair
Period End2021-06-25
Value1.1
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue7.9

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue us-gaap:RegulatoryLiability

us-gaap:PensionCosts


Fair
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-28
Value5.55.04.75.23.74.94.43.3363.2932.5483.531
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue39.339.737.363.446.20.064.70.00.00.041.5

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization


Finite
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-03-292012-12-28
Value9686817671666156514641363433323029272625232220181715141312119.7795.2843.786
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization us-gaap:FiniteLivedIntangibleAssetsByMajorClass

uctt:Backlog


Finite
Period End2021-06-25
Value1.3
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization1.4

uctt:Recipes


Finite
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272018-12-28
Value109.58.57.66.75.84.91.2
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization10.811.010.49.99.38.77.92.9

uctt:StandardOperatingProcedures


Finite
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272018-12-28
Value1.21.11.00.90.80.70.60.2
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization1.21.31.21.21.11.01.00.5

us-gaap:CustomerRelationships


Finite
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272018-12-282014-12-262014-09-262014-06-272014-03-282013-12-272013-03-292012-12-28
Value57535047454239291311109.8268.7644.7723.449
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization60.361.662.062.563.063.764.469.688.788.989.189.389.690.391.1

us-gaap:IntellectualProperty


Finite
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272018-12-282014-12-262013-12-27
Value11109.89.49.18.78.46.90.5710.343
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization11.611.712.012.312.713.013.616.63.93.5

us-gaap:TradeNames


Finite
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272018-12-28
Value141211109.99.08.14.4
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization14.714.514.314.113.813.513.110.6

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive


Finite
Period End2020-12-25
Value72
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths


Finite
Period End2021-06-252021-03-262020-12-252020-09-25
Value33191919
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear


Finite
Period End2021-06-252021-03-262020-09-25
Value19144.9
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive


Finite
Period End2020-12-25
Value12
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearFive100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour


Finite
Period End2021-06-252021-03-262020-12-252020-09-25
Value23121414
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearFour100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree


Finite
Period End2021-06-252021-03-262020-12-252020-09-25
Value25141414
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearThree100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo


Finite
Period End2021-06-252021-03-262020-12-252020-09-25
Value26141919
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsGross us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:FiniteLivedIntangibleAssetsGross

uctt:Backlog


Finite
Period End2021-06-25
Value5.2
Percentage of FiniteLivedIntangibleAssetsGross100.0

us-gaap:CustomerRelationships


Finite
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272018-12-282013-09-272013-06-282013-03-292012-12-28
Value19311911911911911911911219191919
Percentage of FiniteLivedIntangibleAssetsGross3717.30.00.00.00.00.00.00.00.00.00.00.0

us-gaap:IntellectualProperty


Finite
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272018-12-28
Value4913131313131313
Percentage of FiniteLivedIntangibleAssetsGross950.00.00.00.00.00.00.00.0

us-gaap:TradeNames


Finite
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272018-12-282013-09-272013-06-282013-03-292012-12-28
Value36272727272727271.91.91.91.9
Percentage of FiniteLivedIntangibleAssetsGross707.70.00.00.00.00.00.00.00.00.00.00.0

us-gaap:InsuranceSettlementsReceivable us-gaap:IncomeStatementLocation, us-gaap:LiabilityForCatastropheClaimsByCatastrophicEvent

us-gaap:InsuranceSettlementsReceivable

uctt:OtherIncomeExpense, us-gaap:Fire


Insurance
Period End2021-06-26
Value7300000.0
Percentage of InsuranceSettlementsReceivable100.0

us-gaap:InsuranceSettlementsReceivable us-gaap:IncomeStatementLocation, us-gaap:LiabilityForCatastropheClaimsByCatastrophicEvent, us-gaap:RelatedPartyTransactionsByRelatedParty

uctt:OtherIncomeExpense, us-gaap:Fire, uctt:CinosKorea


Insurance
Period End2021-03-26
Value7300000.0
Percentage of InsuranceSettlementsReceivable0.0

us-gaap:IntangibleAssetsGrossExcludingGoodwill

us-gaap:IntangibleAssetsGrossExcludingGoodwill


Intangible
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302016-12-30
Value366242242242242242242242242235235239636363636363
Percentage of IntangibleAssetsGrossExcludingGoodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IntangibleAssetsGrossExcludingGoodwill us-gaap:FiniteLivedIntangibleAssetsByMajorClass

uctt:Backlog


Intangible
Period End2021-06-25
Value5.2
Percentage of IntangibleAssetsGrossExcludingGoodwill1.4

us-gaap:InventoryRawMaterials

us-gaap:InventoryRawMaterials


Inventory
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292011-12-30
Value15510710210611611099929911312114617718818312296877565646257604847454547474941394147523.84342
Percentage of InventoryRawMaterials100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InventoryValuationReserves

us-gaap:InventoryValuationReserves


Inventory
Period End2020-12-252019-12-272018-12-282017-12-292016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292011-12-30
Value12128.97.96.8686.3566.3247.2127.127.7727.8887.0816.4696.5486.3066.5656.8256.9456.7736.0126.2035.274.6353.942
Percentage of InventoryValuationReserves100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InventoryWorkInProcess

us-gaap:InventoryWorkInProcess


Inventory
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292011-12-30
Value896664556361574646505032375143343730262325211718191614142021191412139.994118.30612
Percentage of InventoryWorkInProcess100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths


Lessee
Period End2021-06-252021-03-262020-12-252020-09-25
Value17121212
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths100.0100.0100.0100.0

us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear

us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear


Lessee
Period End2021-06-252021-03-262020-09-25
Value9.3103.7
Percentage of LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear100.0100.0100.0

us-gaap:LiabilitiesFairValueDisclosure us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FinancialInstrument

us-gaap:LiabilitiesFairValueDisclosure

us-gaap:FairValueInputsLevel2, us-gaap:ForwardContracts


Liabilities
Period End2021-03-26
Value0.7
Percentage of LiabilitiesFairValueDisclosure100.0

us-gaap:FairValueInputsLevel3, uctt:CommonStockPurchaseObligation


Liabilities
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272018-12-28
Value1412128.28.07.06.88.58.5
Percentage of LiabilitiesFairValueDisclosure0.01800.00.00.00.00.00.00.00.0

us-gaap:LiabilitiesFairValueDisclosure us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:RegulatoryLiability

us-gaap:FairValueInputsLevel3, us-gaap:PensionCosts


Liabilities
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-28
Value5.55.04.75.23.74.94.43.3363.2932.5483.531
Percentage of LiabilitiesFairValueDisclosure0.0714.30.00.00.00.00.00.00.00.00.0

us-gaap:LiabilitiesFairValueDisclosure us-gaap:FinancialInstrument

uctt:CommonStockPurchaseObligation


Liabilities
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272018-12-28
Value1412128.28.07.06.88.58.5
Percentage of LiabilitiesFairValueDisclosure0.01800.00.00.00.00.00.00.00.0

us-gaap:ForwardContracts


Liabilities
Period End2021-03-26
Value0.7
Percentage of LiabilitiesFairValueDisclosure100.0

us-gaap:LiabilitiesFairValueDisclosure us-gaap:RegulatoryLiability

us-gaap:PensionCosts


Liabilities
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-28
Value5.55.04.75.23.74.94.43.3363.2932.5483.531
Percentage of LiabilitiesFairValueDisclosure0.0714.30.00.00.00.00.00.00.00.00.0

us-gaap:LineOfCredit dei:LegalEntity, us-gaap:CreditFacility

us-gaap:LineOfCredit

uctt:BarclaysBankPLC, us-gaap:LetterOfCredit


Line
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-09-28
Value2.42.42.42.41.51.51.51.51.51.50.0
Percentage of LineOfCredit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity us-gaap:StatementGeographical, us-gaap:BusinessAcquisition, us-gaap:CreditFacility, us-gaap:DebtInstrument

us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity

country:CZ, uctt:UCTFluidDeliverySolutionsSRO, us-gaap:RevolvingCreditFacility, uctt:BankDebt


Line
Period End2020-12-25
Value6.0
Percentage of LineOfCreditFacilityMaximumBorrowingCapacity100.0

us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity us-gaap:StatementGeographical, us-gaap:CreditFacility, us-gaap:RelatedPartyTransactionsByRelatedParty

country:KR, us-gaap:RevolvingCreditFacility, uctt:CinosCoLtd


Line
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-27
Value6001600160016001900190019004900
Percentage of LineOfCreditFacilityMaximumBorrowingCapacity0.00.026666.70.00.00.00.00.0

us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity dei:LegalEntity, us-gaap:CreditFacility

us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity

uctt:BarclaysBankPLC, us-gaap:LetterOfCredit


Line
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-09-28
Value4747474748484848484865
Percentage of LineOfCreditFacilityRemainingBorrowingCapacity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

uctt:BarclaysBankPLC, us-gaap:RevolvingCreditFacility


Line
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282018-12-28
Value65656565252565584863
Percentage of LineOfCreditFacilityRemainingBorrowingCapacity136.6136.6136.6136.651.551.5134.0120.6100.00.0

us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity us-gaap:StatementGeographical, us-gaap:CreditFacility, us-gaap:DebtInstrument

country:CN, us-gaap:RevolvingCreditFacility, uctt:BankDebt


Line
Period End2021-06-252020-12-25
Value0.81.5
Percentage of LineOfCreditFacilityRemainingBorrowingCapacity1.73.2

country:CZ, us-gaap:RevolvingCreditFacility, uctt:BankDebt


Line
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-29
Value9.81.11.09.37.87.00.00650.00638.05.85.92.31.8
Percentage of LineOfCreditFacilityRemainingBorrowingCapacity20.62.32.119.516.114.40.00.016.512.00.03.50.0

country:US, us-gaap:RevolvingCreditFacility, uctt:BankDebt


Line
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-29
Value6565556525250.0650.0585486365650.1
Percentage of LineOfCreditFacilityRemainingBorrowingCapacity136.6136.6115.5136.651.551.50.10.1100.0130.90.0100.00.0

us-gaap:LoansPayableToBankCurrent

us-gaap:LoansPayableToBankCurrent


Loans
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-26
Value218.07.47.57.78.38.89.0137.2039.6869.671425454121516161615121312116.5144.8479.541
Percentage of LoansPayableToBankCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive


Long
Period End2020-12-25
Value231
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths


Long
Period End2020-12-25
Value9200000.0
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive


Long
Period End2020-12-25
Value8700000.0
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour


Long
Period End2020-12-25
Value8800000.0
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree


Long
Period End2020-12-25
Value9900000.0
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo


Long
Period End2020-12-25
Value9000000.0
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo100.0

us-gaap:LongTermLoansFromBank

us-gaap:LongTermLoansFromBank


Long
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-26
Value57325926127232232328330433032933133039414448505456596265677038
Percentage of LongTermLoansFromBank100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:MinorityInterestOwnershipPercentageByNoncontrollingOwners us-gaap:Ownership

us-gaap:MinorityInterestOwnershipPercentageByNoncontrollingOwners

uctt:Rovac


Minority
Period End2021-06-25
Value30.0
Percentage of MinorityInterestOwnershipPercentageByNoncontrollingOwners100.0

us-gaap:MinorityInterestOwnershipPercentageByParent us-gaap:Ownership

us-gaap:MinorityInterestOwnershipPercentageByParent

uctt:CinosCoLtd


Minority
Period End2021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-08-27
Value86.086.086.00.860.860.860.860.860.860.860.86
Percentage of MinorityInterestOwnershipPercentageByParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

uctt:CinosXianCleanTechnologyLtd


Minority
Period End2021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-28
Value60.060.060.00.60.60.60.60.60.60.6
Percentage of MinorityInterestOwnershipPercentageByParent69.869.869.869.869.869.869.869.869.869.8

uctt:Rovac


Minority
Period End2021-06-25
Value70.0
Percentage of MinorityInterestOwnershipPercentageByParent0.0

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent


Operating
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-29
Value5.15.55.55.50.0550.0557.07.00.070.07
Percentage of OperatingLeaseWeightedAverageDiscountRatePercent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingLossCarryforwards us-gaap:IncomeTaxAuthorityName

us-gaap:OperatingLossCarryforwards

us-gaap:CaliforniaFranchiseTaxBoard


Operating
Period End2020-12-252016-12-302015-12-25
Value352418
Percentage of OperatingLossCarryforwards100.0100.0100.0

us-gaap:PrepaidExpenseAndOtherAssets us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FinancialInstrument

us-gaap:PrepaidExpenseAndOtherAssets

us-gaap:FairValueInputsLevel2, us-gaap:ForwardContracts


Prepaid
Period End2021-06-252020-12-25
Value100000.01100000.0
Percentage of PrepaidExpenseAndOtherAssets100.0100.0

us-gaap:PrepaidExpenseAndOtherAssets us-gaap:FinancialInstrument

us-gaap:ForwardContracts


Prepaid
Period End2021-06-252020-12-25
Value100000.01100000.0
Percentage of PrepaidExpenseAndOtherAssets100.0100.0

us-gaap:PurchaseCommitmentRemainingMinimumAmountCommitted us-gaap:LongTermPurchaseCommitmentByCategoryOfItemPurchased

us-gaap:PurchaseCommitmentRemainingMinimumAmountCommitted

us-gaap:Inventories


Purchase
Period End2021-06-252021-03-262020-12-252020-09-25
Value405297205179
Percentage of PurchaseCommitmentRemainingMinimumAmountCommitted100.0100.0100.0100.0

us-gaap:SecuredDebt dei:LegalEntity, us-gaap:CreditFacility

us-gaap:SecuredDebt

uctt:BarclaysBankPLC, uctt:TermLoanCreditFacility


Secured
Period End2021-06-252021-03-312021-03-262020-12-252020-09-25
Value598355272275287
Percentage of SecuredDebt100.0100.0100.0100.0100.0

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueNonvested us-gaap:AwardType

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueNonvested

uctt:RestrictedStockUnitsAndRestrictedStockAwards


Sharebased
Period End2020-12-252019-12-272018-12-282017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272012-12-28
Value5441143850262016109.5357.9846.5637.689799.6739.4968.9112126.143
Percentage of SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueNonvested100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

uctt:RestrictedStockUnitsPerformanceStockUnitsAndRestrictedStockAwards


Sharebased
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-282018-06-292018-03-302017-12-29
Value769554364427412730151422202938
Percentage of SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueNonvested0.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.0

us-gaap:TreasuryStockShares

us-gaap:TreasuryStockShares


Treasury
Period End2020-12-252020-06-262020-03-272019-12-272019-09-272019-06-292019-03-292018-12-282018-09-282018-06-292018-03-302017-12-292017-09-292017-06-302017-03-312016-12-302016-09-232016-06-242016-03-252015-12-252015-09-252015-06-262015-03-272014-12-262014-09-262014-06-272014-03-282013-12-272013-09-272013-06-282013-03-292012-12-282012-09-282012-06-292012-03-302011-12-302011-09-302011-07-012010-12-31
Value600000.00.60.60.6601940.0601940.0601940.0601940.0601940.0601940.0601940.0601940.0601940.0601940.0601940.0601940.0601940.0601940.0601940.0601940.0601940.0601940.0601940.0601940.0601940.0601940.0601940.0601940.0601940.0601940.0601940.0601940.0601940.0601940.0601940.0601940.0601940.0601940.0601940.0
Percentage of TreasuryStockShares100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:UnamortizedDebtIssuanceExpense dei:LegalEntity, us-gaap:CreditFacility

us-gaap:UnamortizedDebtIssuanceExpense

uctt:BarclaysBankPLC, uctt:TermLoanCreditFacility


Unamortized
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-28
Value157.47.98.38.99.29.71010111112
Percentage of UnamortizedDebtIssuanceExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:UnamortizedDebtIssuanceExpense us-gaap:DebtInstrument

uctt:BankDebt


Unamortized
Period End2021-06-252021-03-262020-12-252020-09-252020-06-262020-03-272019-12-272019-09-272019-06-282019-03-292018-12-282018-09-28
Value157.47.98.38.99.20.00970.010210111112
Percentage of UnamortizedDebtIssuanceExpense100.0100.0100.0100.0100.0100.00.10.1100.0100.0100.0100.0

us-gaap:UndistributedEarningsOfForeignSubsidiaries

us-gaap:UndistributedEarningsOfForeignSubsidiaries


Undistributed
Period End2021-06-252021-03-262020-12-252020-09-25
Value317305267212
Percentage of UndistributedEarningsOfForeignSubsidiaries100.0100.0100.0100.0

Line plots across dimensions of each concept


us-gaap:SharesIssued
us-gaap:StatementEquityComponents
(None,)
Shares Issuedus-gaap: Statement Equity Components
Gross Margin
us-gaap:ProductOrService
(None,)
Gross  Marginus-gaap: Product Or Service
Gross Margin
us-gaap:StatementBusinessSegments
(None,)
Gross  Marginus-gaap: Statement Business Segments
Operating Margin
us-gaap:ProductOrService
(None,)
Operating  Marginus-gaap: Product Or Service
Operating Margin
us-gaap:StatementBusinessSegments
(None,)
Operating  Marginus-gaap: Statement Business Segments
TTM Greenblatt ROC
_
(None,)
T T M  Greenblatt  R O C_
us-gaap:CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization
us-gaap:ProductOrService
(None,)
Cost Of Goods And Service Excluding Depreciation Depletion And Amortizationus-gaap: Product Or Service
us-gaap:GrossProfit
us-gaap:StatementBusinessSegments
(None,)
Gross Profitus-gaap: Statement Business Segments
us-gaap:GrossProfit
us-gaap:ProductOrService
(None,)
Gross Profitus-gaap: Product Or Service
us-gaap:OperatingIncomeLoss
us-gaap:StatementBusinessSegments
(None,)
Operating Income Lossus-gaap: Statement Business Segments
us-gaap:OperatingIncomeLoss
us-gaap:ProductOrService
(None,)
Operating Income Lossus-gaap: Product Or Service
us-gaap:OtherComprehensiveIncomeLossNetOfTax
us-gaap:StatementEquityComponents
(None,)
Other Comprehensive Income Loss Net Of Taxus-gaap: Statement Equity Components
us-gaap:ProfitLoss
us-gaap:StatementEquityComponents
(None,)
Profit Lossus-gaap: Statement Equity Components
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:StatementGeographical
(None,)
Revenue From Contract With Customer Excluding Assessed Taxus-gaap: Statement Geographical
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:ProductOrService
(None,)
Revenue From Contract With Customer Excluding Assessed Taxus-gaap: Product Or Service
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:StatementBusinessSegments
(None,)
Revenue From Contract With Customer Excluding Assessed Taxus-gaap: Statement Business Segments
us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax
us-gaap:ProductOrService
(None,)
Revenue From Contract With Customer Including Assessed Taxus-gaap: Product Or Service
us-gaap:Assets
us-gaap:StatementBusinessSegments
(None,)
Assetsus-gaap: Statement Business Segments
us-gaap:Assets
us-gaap:ProductOrService
(None,)
Assetsus-gaap: Product Or Service
us-gaap:NoncurrentAssets
us-gaap:StatementGeographical
(None,)
Noncurrent Assetsus-gaap: Statement Geographical
us-gaap:PropertyPlantAndEquipmentGross
us-gaap:PropertyPlantAndEquipmentByType
(None,)
Property Plant And Equipment Grossus-gaap: Property Plant And Equipment By Type
us-gaap:Goodwill
us-gaap:StatementBusinessSegments
(None,)
Goodwillus-gaap: Statement Business Segments
us-gaap:FiniteLivedIntangibleAssetsNet
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
(None,)
Finite Lived Intangible Assets Netus-gaap: Finite Lived Intangible Assets By Major Class
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
us-gaap:StatementEquityComponents
(None,)
Stockholders Equity Including Portion Attributable To Noncontrolling Interestus-gaap: Statement Equity Components
us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
us-gaap:StatementEquityComponents
(None,)
Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Valueus-gaap: Statement Equity Components
us-gaap:ProfitLoss
us-gaap:StatementEquityComponents
(None,)
Profit Lossus-gaap: Statement Equity Components
us-gaap:ShareBasedCompensation
us-gaap:IncomeStatementLocation
(None,)
Share Based Compensationus-gaap: Income Statement Location