NTGR


Line plots across dimensions of each concept
Tables

Table of contents



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

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:ContractWithCustomerSalesChannel
us-gaap:ContractWithCustomerSalesChannel, us-gaap:StatementBusinessSegments
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents
us-gaap:StatementBusinessSegments
us-gaap:StatementGeographical
us-gaap:StatementGeographical, us-gaap:StatementBusinessSegments

us-gaap:Revenues

us-gaap:CostOfGoodsAndServicesSold
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:GrossProfit

us-gaap:OperatingExpenses

us-gaap:ResearchAndDevelopmentExpense
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:GeneralAndAdministrativeExpense
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:SellingAndMarketingExpense
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:OperatingIncomeLoss

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:AllocatedShareBasedCompensationExpense
us-gaap:IncomeStatementLocation

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:IncomeTaxExpenseBenefit
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:ProfitLoss
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossNetOfTax

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:Assets

us-gaap:Liabilities

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents

us-gaap:AssetsCurrent

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:ShortTermInvestments

us-gaap:AccountsReceivableNetCurrent

us-gaap:InventoryNet

us-gaap:PrepaidExpenseAndOtherAssetsCurrent

us-gaap:NoncurrentAssets
us-gaap:StatementGeographical

us-gaap:PropertyPlantAndEquipmentGross
us-gaap:PropertyPlantAndEquipmentByType

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AmortizationOfIntangibleAssets

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:LongTermInvestments
us-gaap:InvestmentType

us-gaap:Goodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:FiniteLivedIntangibleAssetsNet
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OtherAssetsNoncurrent

us-gaap:LiabilitiesCurrent

us-gaap:AccountsPayableCurrent

us-gaap:OtherAccruedLiabilitiesCurrent

us-gaap:AccruedIncomeTaxesCurrent

us-gaap:AccruedLiabilitiesCurrent

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:ContractWithCustomerLiabilityCurrent

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest

us-gaap:CommonStockValue

us-gaap:AdditionalPaidInCapital

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
us-gaap:StatementEquityComponents

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:ProfitLoss
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:DepreciationDepletionAndAmortization

us-gaap:IncreaseDecreaseInAccountsReceivable

us-gaap:IncreaseDecreaseInInventories

us-gaap:IncreaseDecreaseInAccountsPayable

us-gaap:DeferredIncomeTaxExpenseBenefit

us-gaap:ShareBasedCompensation

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:PaymentsForRepurchaseOfCommonStock

us-gaap:EffectiveIncomeTaxRateContinuingOperations
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

ntgr:AmortizationOfIntangibleAsset

ntgr:CorporateAndUnallocatedIncome

ntgr:NumberOfGeographicRegions

ntgr:RestructuringAndOtherCharges

ntgr:SegmentContributionIncome
us-gaap:StatementBusinessSegments
us-gaap:StatementBusinessSegments
ntgr:SegmentContributionMargin

us-gaap:AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation
us-gaap:StatementEquityComponents

us-gaap:AssetImpairmentCharges

us-gaap:BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1

us-gaap:Depreciation
us-gaap:HedgingDesignation
us-gaap:DerivativeGainLossOnDerivativeNet

us-gaap:EquitySecuritiesWithoutReadilyDeterminableFairValueImpairmentLossAnnualAmount

us-gaap:GainLossRelatedToLitigationSettlement

us-gaap:IncreaseDecreaseInAccruedIncomeTaxesPayable

us-gaap:IncreaseDecreaseInContractWithCustomerLiability

us-gaap:IncreaseDecreaseInEmployeeRelatedLiabilities

us-gaap:IncreaseDecreaseInOtherAccruedLiabilities

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets

us-gaap:InventoryWriteDown

us-gaap:InvestmentIncomeInterest

us-gaap:LeaseCost
us-gaap:LitigationCase
us-gaap:LossContingencyPatentsAllegedlyInfringedNumber
us-gaap:LitigationCase, us-gaap:SubsequentEventType

us-gaap:NumberOfOperatingSegments

us-gaap:NumberOfReportableSegments
us-gaap:StatementEquityComponents
us-gaap:OciBeforeReclassificationsBeforeTaxAttributableToParent

us-gaap:OciBeforeReclassificationsNetOfTaxAttributableToParent

us-gaap:OperatingLeaseCost

us-gaap:OperatingLeasePayments

us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax

us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsTax

us-gaap:OtherComprehensiveIncomeLossBeforeTax
us-gaap:StatementEquityComponents
us-gaap:OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation
us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation, us-gaap:IncomeStatementLocation
us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent

us-gaap:OtherComprehensiveIncomeLossTaxPortionAttributableToParent1

us-gaap:OtherNoncashIncomeExpense

us-gaap:OtherOperatingIncomeExpenseNet

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:PaymentsToAcquireOtherInvestments

us-gaap:PaymentsToAcquireShortTermInvestments

us-gaap:ProceedsFromSaleMaturityAndCollectionOfShorttermInvestments

us-gaap:ProceedsFromStockOptionsExercised

us-gaap:ProceedsFromStockPlans

us-gaap:ProductWarrantyAccrualPayments

us-gaap:ProductWarrantyAccrualWarrantiesIssued

us-gaap:ProfessionalFees
us-gaap:StatementEquityComponents
us-gaap:ReclassificationFromAociCurrentPeriodBeforeTaxAttributableToParent

us-gaap:ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent

us-gaap:ReclassificationFromAociCurrentPeriodTax

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate
us-gaap:PlanName
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized

us-gaap:SharesPaidForTaxWithholdingForShareBasedCompensation
us-gaap:StatementEquityComponents

us-gaap:ShortTermLeaseCost
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodSharesShareBasedCompensation

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation
us-gaap:StatementEquityComponents

us-gaap:StockRepurchasedAndRetiredDuringPeriodShares
us-gaap:StatementEquityComponents

us-gaap:StockRepurchasedAndRetiredDuringPeriodValue
us-gaap:StatementEquityComponents

us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment

ntgr:AccruedFreightCharges

ntgr:InventoryExpectedToBeReceivedFromFutureSalesReturns
us-gaap:PurchaseCommitmentExcludingLongtermCommitment
ntgr:PercentageOfCancelableOrders

ntgr:ProvisionsToWriteDownExpectedReturnedInventoryToNetRealizableValue

us-gaap:AccruedIncomeTaxesNoncurrent

us-gaap:AccruedMarketingCostsCurrent

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent
us-gaap:StatementEquityComponents
us-gaap:AociBeforeTaxAttributableToParent

us-gaap:AociTaxAttributableToParent

us-gaap:AssetsFairValueDisclosure

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax

us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis
us-gaap:FinancialInstrument
us-gaap:ShortTermDebtType

us-gaap:AvailableForSaleSecuritiesDebtSecurities
us-gaap:FinancialInstrument
us-gaap:ShortTermDebtType

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations

us-gaap:ContractWithCustomerLiabilityNoncurrent

us-gaap:ContractWithCustomerRefundLiabilityCurrent

us-gaap:DeferredIncomeTaxAssetsNet

us-gaap:DerivativeFairValueOfDerivativeAsset
us-gaap:BalanceSheetLocation, us-gaap:HedgingDesignation
us-gaap:DerivativeInstrumentRisk

us-gaap:DerivativeFairValueOfDerivativeLiability
us-gaap:BalanceSheetLocation, us-gaap:HedgingDesignation
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship
us-gaap:DerivativeNumberOfInstrumentsHeld
us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation

us-gaap:EmployeeRelatedLiabilitiesCurrent
us-gaap:AwardType
us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized

us-gaap:EquitySecuritiesWithoutReadilyDeterminableFairValueAmount

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:FiniteLivedIntangibleAssetsGross
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:InventoryFinishedGoodsNetOfReserves

us-gaap:InventoryRawMaterialsNetOfReserves

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

us-gaap:OtherAssetsMiscellaneousNoncurrent

us-gaap:ProductWarrantyAccrual

us-gaap:ProductWarrantyAccrualClassifiedCurrent

us-gaap:RevenueRemainingPerformanceObligation
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue

Tables

  2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-02
us-gaap:CommonStockValue ▁▁▁▃▃▆▆▆▆▆▃▆▆█0.030.030.030.0310.0310.0320.0320.0320.0320.0320.0310.0320.0320.033
 us-gaap:SharesOutstanding us-gaap:StatementEquityComponents us-gaap:CommonStock▁▁▂▃▄▅▅▅▆▅▅▅▇█29.68429.59229.92530.58131.1131.46731.56231.74631.78131.53431.3231.73132.25832.953
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding █▁30.0729.583NA31.81932.11232.874NA32.97431.67432.66NA32.39333.11634.136
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic █▁29.61729.583NA30.93331.24631.483NA31.80231.67431.427NA31.70432.35232.944
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount ▁█2.2452.485NA1.5871.2080.507NA0.451.0140.773NA0.9750.7820.07
us-gaap:EarningsPerShareBasic ▆▅▅▇▅▇▃▇▅▆▁█▇▇0.2-0.14-0.010.410.030.41-0.620.31-0.170.18-1.020.660.450.49
us-gaap:EarningsPerShareDiluted ▆▅▅▇▅▇▃▇▅▆▁█▇▇0.2-0.14-0.010.390.030.39-0.620.3-0.170.17-1.020.640.440.47
  2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-02
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax ▃▁▂▂▁▂▃█▇▆▃▆▅▅280.052229.963252.971265.858230.852249.082288.928400.586366.82344.973274.149355.483330.723323.657
us-gaap:Revenues ▃▁▂▂▁▂▃█▇▆▃▆▅▅280.052229.963252.971265.858230.852249.082288.928400.586366.82344.973274.149355.483330.723323.657
us-gaap:CostOfGoodsAndServicesSold ▆▅▆▆▅▅▁█▇▇█▇▇▇198.751163.722183.388188.666165.407167.074-57.392276.394257.648240.468292.978252.388238.787226.725
us-gaap:GrossProfit ▃▁▁▂▁▃▄█▆▆▆▅▄▅81.30166.24169.58377.19265.44582.00890.654124.192109.172104.505104.079103.09591.93696.932
us-gaap:OperatingExpenses ▆▅▆▅▅▆▁██▇▆▆▆▆72.43465.57269.79465.12765.11968.0-19.782114.581112.16796.01884.77877.70172.84374.143
us-gaap:ResearchAndDevelopmentExpense ▆▆▆▆▆▆▁█▇▇▇▆▆▆21.14419.73920.79919.53718.81418.832-13.15535.25331.37128.94725.43623.12723.35722.683
us-gaap:GeneralAndAdministrativeExpense ▅▄▅▄▃▄▁█▇▆▅▅▄▄15.48113.13413.96511.88710.46313.1174.50323.26820.44816.63816.04814.22912.9513.194
us-gaap:SellingAndMarketingExpense ▅▅▅▅▅▅▁██▇▇▆▆▆34.38433.03134.26333.49134.54135.85512.92349.00546.98343.65843.16740.31136.46138.229
us-gaap:OperatingIncomeLoss ▄▂▂▅▂▅█▄▁▄▆█▆▇8.8670.669-0.21112.0650.32614.00823.6119.611-2.9958.48719.30125.39419.09322.789
us-gaap:OtherNonoperatingIncomeExpense ▇▁▇▆▇▇▇██▅▇█▇▇0.314-4.5860.419-0.4030.4870.341-0.1280.8291.061-1.2520.640.6660.3830.335
us-gaap:AllocatedShareBasedCompensationExpense █▆█▆▆▆▁██▇▅▅▅▅9.1726.3368.9546.9866.7396.458-0.2139.5548.978.155.7355.5835.7015.128
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest █▁9.23-3.655NANA1.59515.05NANANANANANANANA
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments ▄▁▂▅▂▅▇▅▂▄▇█▆▇9.23-3.6550.62512.3011.59515.0524.15311.93-0.8627.98320.66626.56119.95823.529
us-gaap:IncomeTaxExpenseBenefit ▁▁▁▁▁▁▄▁▂▁█▂▂▂3.2470.5181.045-0.2280.7562.20719.212.784.3682.39352.65.7675.3767.535
us-gaap:ProfitLoss ▆▅▅▇▅▇▂▆▅▆▁█▇▇5.983-4.173-0.4212.5290.83912.843-27.8399.15-5.235.59-31.93420.79414.58215.994
us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax ▁█-0.3640.35NA-0.03-0.0020.017NA0.040.1090.631NANANANA
 us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax us-gaap:StatementEquityComponents us-gaap:AccumulatedOtherComprehensiveIncome▁█-0.3640.35NA-0.03-0.0020.017NA0.040.1090.631NANANANA
us-gaap:OtherComprehensiveIncomeLossNetOfTax ▅▅▅▅▅▅▅▅▅▅█▅▁▄-0.3640.350.039-0.03-0.0020.0290.0210.0710.1620.5823.9110.048-5.212-1.536
us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest ▆▄▅▇▅▇▁▆▄▆▁█5.619-3.823-0.38112.4990.83712.872-27.8189.221-5.0686.172-28.02320.842NANA
us-gaap:NetIncomeLoss ▆▅▅▇▅▇▃▇▅▆▁█▇▇5.983-4.173-0.4212.5290.83912.843-19.4719.949-5.235.59-31.93420.79414.58215.994
  2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-02
  2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-02
  2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-02
us-gaap:Assets ▂▁▂▂▂▂▃█▅▅▅▄▄▄928.971879.369955.813943.061992.507970.3751043.3761533.3221256.6311213.1771208.5641161.1571115.5891142.143
us-gaap:Liabilities ▂▁▂▂▃▂▄█▆▅▅▃▂▂322.825281.578347.12320.923370.435337.467415.824598.843500.895457.458478.079384.642339.667334.113
us-gaap:LiabilitiesAndStockholdersEquity ▂▁▂▂▂▂▃█▅▅▅▄▄▄928.971879.369955.813943.061992.507970.3751043.3761533.3221256.6311213.1771208.5641161.1571115.5891142.143
us-gaap:StockholdersEquity ▁▁▁▂▂▂▂█▅▅▄▅▅▆606.146597.791608.693622.138622.072632.908627.552910.178755.736755.719730.485776.515775.922808.03
  2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-02
us-gaap:AssetsCurrent ▂▁▂▂▂▂▃█▅▅▅▄▄▄721.688677.647744.109726.724771.949746.097857.8991258.3221035.858999.5331015.664945.166901.589924.274
us-gaap:CashAndCashEquivalentsAtCarryingValue ▄▂▂▁▂▂▂█▃▄▂▃▂▃252.633204.292190.208168.002214.611185.68201.047393.64227.397258.795202.87246.573190.676235.668
us-gaap:ShortTermInvestments ▁▁▁▁▁▂▅████▇▇▇5.9195.4225.4993.9153.726.97273.317136.173128.241127.442126.926126.213114.847125.567
us-gaap:AccountsReceivableNetCurrent ▃▂▃▁▁▂▄▆▅▄█▃▄▂277.49257.582277.168248.07238.635262.531303.667358.982343.883317.102412.798295.591304.588265.254
us-gaap:InventoryNet ▁▂▄▆▆▄▅█▆▆▅▅▅▆150.585180.602235.489275.584276.316236.123243.871330.516291.459266.345245.894249.078263.773267.826
us-gaap:PrepaidExpenseAndOtherAssetsCurrent ▄▂▄▃▆▄▄▆█▂▁▁▁▂35.06129.74935.74531.15338.68734.79135.99739.01144.87829.84927.17627.71127.70529.959
  2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-02
us-gaap:NoncurrentAssets █▁▇47.3143.94946.6NANANA20.177NANANANANANANA
us-gaap:PropertyPlantAndEquipmentGross ▂▁▁▂▂▂▁█▃▂▂▂▁▃124.496117.644116.008124.333122.739119.388116.108160.105129.06124.202123.241121.344117.36125.689
us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment █▄▂▆▄▃▁▅▃▆▅▄▂▇108.96101.26298.325104.662101.66598.74395.931103.45899.923104.423102.581101.11698.531106.341
us-gaap:AmortizationOfIntangibleAssets ▂▂▂▂▂▃▁▄▄▄▄▄▅█1.61.61.61.61.72.11.02.42.52.52.52.73.24.5
us-gaap:PropertyPlantAndEquipmentNet ▁▁▁▂▂▂▂█▃▂▂▂▂▂15.53616.38217.68319.67121.07420.64520.17756.64729.13719.77920.6620.22818.82919.348
us-gaap:LongTermInvestments 9.869NA8.147NANANANANANANANANANANA
us-gaap:Goodwill ▁▁▁▁▁▁▁█▃▃▃▃▃▃80.72180.72180.72180.72180.72180.72180.721101.96585.46385.46385.46385.46385.46385.463
us-gaap:IntangibleAssetsNetExcludingGoodwill ▁▁▂▂▃▃▄▅▄▅▆▆▇█6.9158.5110.10411.69913.29715.05817.14622.34120.02422.44924.98827.52730.21533.438
us-gaap:FiniteLivedIntangibleAssetsNet ▁▁▂▂▃▃▄▅▄▅▆▆▇█6.9158.5110.10411.69913.29715.05817.14622.34120.02422.44924.98827.52730.21533.438
us-gaap:OperatingLeaseRightOfUseAsset ▇▆▇▇██▁31.77427.56728.91731.6134.06336.6130.0NANANANANANANA
us-gaap:OtherAssetsNoncurrent ▃▂▄▃▃▃▂█▆▆▁▆▅▅72.33768.54274.27972.63671.40371.24167.43394.04786.14985.95361.78982.77379.49379.62
  2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-02
us-gaap:LiabilitiesCurrent ▂▁▃▂▃▂▅█▆▅▆▄▃▃270.283234.202298.391272.474314.987280.011383.992524.071444.552402.156424.436352.327307.15301.923
us-gaap:AccountsPayableCurrent ▃▁▃▃▅▃▆█▅▄▅▄▃▄76.08639.21380.53183.912108.44469.279139.748168.155107.70496.371111.91592.86372.88689.765
us-gaap:OtherAccruedLiabilitiesCurrent ▂▂▁▂▂▂▃█▆▅▄▄▃▁29.08728.46225.78428.61729.27932.37636.60860.86151.88943.63239.92639.77635.72727.366
us-gaap:AccruedIncomeTaxesCurrent ▂▂▂▂▂▃▂▆▂█▆▅▁█0.8051.2041.8391.3141.1412.8952.026.8531.3599.8667.0155.8030.09.855
us-gaap:AccruedLiabilitiesCurrent ▂▂▃▂▂▂▄█▇▆▅▃▂▁163.079172.908189.547163.333171.873177.635199.472282.41265.99239.261222.47187.533173.714149.282
us-gaap:OperatingLeaseLiabilityCurrent ▇▇▇▇██▁8.8968.6979.3579.76510.24310.5990.0NANANANANANANA
us-gaap:ContractWithCustomerLiabilityCurrent ▂▁▁▁▂▂▂█▇▇▅8.1716.6696.455.81210.09311.7511.08635.48530.67430.98521.212NANANA
  2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-02
us-gaap:OtherLiabilitiesNoncurrent ▁▁▁▁▁▁▂█▄▃▃▃▂▂9.2887.9997.9888.0527.9077.812.23253.49924.14423.21322.09917.6816.79616.456
us-gaap:OperatingLeaseLiabilityNoncurrent ▇▆▇▇██▁27.74924.25225.43427.17829.26331.5140.0NANANANANANANA
  2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-02
us-gaap:StockholdersEquity ▁▁▁▂▂▂▂█▅▅▄▅▅▆606.146597.791608.693622.138622.072632.908627.552910.178755.736755.719730.485776.515775.922808.03
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest ▆▁█606.146597.791608.693NANANA627.552934.479755.736755.719730.485776.515775.922808.03
us-gaap:CommonStockValue ▁▁▁▃▃▆▆▆▆▆▃▆▆█0.030.030.030.0310.0310.0320.0320.0320.0320.0320.0310.0320.0320.033
us-gaap:AdditionalPaidInCapital ██▇▇▇▇▆▆▂▂▂▁▁▁853.137840.641831.365821.966812.034804.413793.585785.694625.858615.876603.137594.215584.097576.862
us-gaap:RetainedEarningsAccumulatedDeficit ▁▁▁▂▂▂▂▆▇▇▆▇▇█-247.028-243.251-222.723-199.841-190.005-171.551-166.05124.488129.953140.08128.168187.03196.603230.733
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax ▇█▇▇▇▇▇▇▇▇▆▁▁█0.0070.3710.021-0.0180.0120.014-0.015-0.036-0.107-0.269-0.851-4.762-4.810.402
us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue █▁9.1726.336NA6.9866.7396.457NA8.6128.978.15NA5.5835.7015.128
  2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-02
us-gaap:NetCashProvidedByUsedInOperatingActivities ▇▆▇▅▆▅▁▆▅▇▅█▅▆63.16529.00549.569-26.11727.266-37.193-177.06733.789-16.92956.996-13.90898.051-5.889.261
us-gaap:NetCashProvidedByUsedInInvestingActivities ▃▄▄▄▆█▄▁▃▄▃▂▅▃-8.388-1.506-3.764-2.65420.03635.841-1.701-27.515-10.529-3.444-5.969-16.3228.067-5.594
us-gaap:NetCashProvidedByUsedInFinancingActivities ▂▂▂▂▂▂▂█▂▃▂▂▁▂-6.436-13.415-23.599-17.838-18.371-14.015-13.825159.969-3.942.373-23.826-25.832-47.179-8.467
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect ▆▅▅▄▅▄▁█▄▆48.34114.08422.206-46.60928.931-15.367-192.593166.243-31.39855.925NANANANA
  2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-02
us-gaap:NetCashProvidedByUsedInOperatingActivities ▇▆▇▅▆▅▁▆▅▇▅█▅▆63.16529.00549.569-26.11727.266-37.193-177.06733.789-16.92956.996-13.90898.051-5.889.261
us-gaap:NetIncomeLoss ▆▅▅▇▅▇▃▇▅▆▁█▇▇5.983-4.173-0.4212.5290.83912.843-19.4719.949-5.235.59-31.93420.79414.58215.994
us-gaap:ProfitLoss ▆▅▅▇▅▇▂▆▅▆▁█▇▇5.983-4.173-0.4212.5290.83912.843-27.8399.15-5.235.59-31.93420.79414.58215.994
us-gaap:DepreciationDepletionAndAmortization ▅▅▅▅▅▅▁▆▆▆▆▆▆█4.7534.634.8294.6124.9375.0281.2635.9335.7685.8875.8755.9956.3587.866
us-gaap:IncreaseDecreaseInAccountsReceivable ▅▄▅▅▃▃█▅▅▁█▄▆▃19.909-19.58629.0979.435-23.896-41.136103.20314.8826.781-101.809117.207-8.99639.333-48.585
us-gaap:IncreaseDecreaseInInventories ▃▁▂▅█▄▅█▇▇▅▄▅▆-27.841-52.484-36.217-0.73240.193-7.748-4.0738.29725.11422.819-3.183-14.695-4.05319.964
us-gaap:IncreaseDecreaseInAccountsPayable ▇▂▅▃▇▁▄█▅▄▆▆▄▄36.697-41.488-2.04-25.49139.348-68.431-9.24259.14510.594-14.99419.23219.267-17.177-22.106
us-gaap:DeferredIncomeTaxExpenseBenefit ▂▂▁▁▂▂▃▁▂▂█▁▂▂1.8251.042-1.882-1.6130.9681.1484.033-2.7071.764-0.63121.902-1.8541.320.468
us-gaap:ShareBasedCompensation █▆█▆▆▆▁██▇▅▅▅▅9.1726.3368.9546.9866.7396.458-0.2139.5548.978.155.7355.5835.7015.128
  2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-02
us-gaap:NetCashProvidedByUsedInInvestingActivities ▃▄▄▄▆█▄▁▃▄▃▂▅▃-8.388-1.506-3.764-2.65420.03635.841-1.701-27.515-10.529-3.444-5.969-16.3228.067-5.594
us-gaap:PaymentsToAcquirePropertyPlantAndEquipment ▅▄▅▅▅▆▁▇█▅▆▅▅▅2.3561.2752.4332.3743.4655.958-7.6326.51510.1833.1853.8693.6432.7283.434
  2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-02
us-gaap:NetCashProvidedByUsedInFinancingActivities ▂▂▂▂▂▂▂█▂▃▂▂▁▂-6.436-13.415-23.599-17.838-18.371-14.015-13.825159.969-3.942.373-23.826-25.832-47.179-8.467
us-gaap:PaymentsForRepurchaseOfCommonStock ▂▃▅▄▄▃▃▃▁▁▅▆█▃7.515.00823.58120.38516.9815.015.015.00.00.026.5729.99945.011.631
  2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-02

None

us-gaap:CommonStockValue

us-gaap:CommonStockValue


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032010-12-31
Value30000.030000.030000.031000.031000.032000.032000.032000.032000.032000.031000.032000.032000.033000.033000.033000.033000.033000.033000.032000.032000.035000.035000.035000.036000.037000.037000.039000.039000.039000.038000.038000.038000.038000.038000.038000.037000.036000.0
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:SharesOutstanding us-gaap:StatementEquityComponents

us-gaap:SharesOutstanding

us-gaap:CommonStock


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value2929293031313131313131313232323234363837363434
Percentage of SharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding


None
Period End2020-06-282020-03-292019-09-292019-06-302019-03-312018-09-302018-07-012018-04-012017-10-012017-07-022017-04-022016-10-022016-07-032016-04-032015-09-272015-06-282015-03-292014-09-282014-06-292014-03-302013-09-292013-06-302013-03-312012-09-302012-07-012012-04-012011-10-022011-07-032011-04-032010-10-032010-06-27
Value30293132323231323233343333333234353636373939393838383837373635
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic


None
Period End2020-06-282020-03-292019-09-292019-06-302019-03-312018-09-302018-07-012018-04-012017-10-012017-07-022017-04-022016-10-022016-07-032016-04-032015-09-272015-06-282015-03-292014-09-282014-06-292014-03-302013-09-292013-06-302013-03-312012-09-302012-07-012012-04-012011-10-022011-07-032011-04-032010-10-032010-06-27
Value29293031313131313132323232323133343536363838383837373737363535
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount


None
Period End2020-06-282020-03-292019-09-292019-06-302019-03-312018-09-302018-07-012018-04-012017-10-012017-07-022017-04-022016-10-022016-07-032016-04-032015-09-272015-06-282015-03-292014-09-282014-06-292014-03-302013-09-292013-06-302013-03-312012-09-302012-07-012012-04-012011-10-022011-07-032011-04-03
Value2245000.02485000.01587000.01208000.0507000.0450000.01014000.0773000.0975000.0782000.070000.00431000.0486000.02768000.02631000.02368000.02800000.02500000.02600000.03000000.02900000.02400000.02600000.02700000.01800000.01900000.01600000.01400000.0
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareBasic


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312010-10-032010-06-272010-03-28
Value0.2-0.14-0.010.410.030.41-0.620.31-0.170.18-1.020.660.450.490.670.640.490.510.680.470.110.23-1.160.560.410.390.30.370.360.40.420.620.570.670.610.710.560.580.380.370.30.39
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareDiluted


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312010-10-032010-06-272010-03-28
Value0.2-0.14-0.010.390.030.39-0.620.3-0.170.17-1.020.640.440.470.650.620.480.50.660.470.110.23-1.160.550.40.390.30.370.360.390.410.610.560.650.60.70.540.570.370.360.290.38
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-02
Value280229252265230249288400366344274355330323
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ContractWithCustomerSalesChannel

us-gaap:SalesChannelDirectlyToConsumer


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-02
Value235202222229203210-70.0543623122930.396303273267
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax83.988.087.886.387.984.6-24.290.585.185.10.185.582.882.7
Percentage of Revenues83.988.00.086.387.984.6-24.290.585.185.10.185.582.882.7
Percentage of Revenues us-gaap:SalesChannelDirectlyToConsumer0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:SalesChannelThroughIntermediary


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-02
Value4527303627381637545128515755
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax16.112.012.213.712.115.45.79.514.914.910.514.517.217.3
Percentage of Revenues16.112.00.013.712.115.45.79.514.914.910.514.517.217.3
Percentage of Revenues us-gaap:SalesChannelThroughIntermediary0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ContractWithCustomerSalesChannel, us-gaap:StatementBusinessSegments

us-gaap:SalesChannelDirectlyToConsumer, ntgr:ConnectedHome


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-02
Value185137154155140132169163144135161138137141
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax66.460.061.058.460.953.258.740.939.539.458.739.041.643.6
Percentage of Revenues66.460.00.058.460.953.258.740.939.539.458.739.041.643.6
Percentage of Revenues us-gaap:SalesChannelDirectlyToConsumer ntgr:ConnectedHome0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:SalesChannelDirectlyToConsumer, ntgr:SMB


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-02
Value4964687462787073706973606567
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax17.628.026.927.927.031.424.418.419.120.326.817.119.820.9
Percentage of Revenues17.628.00.027.927.031.424.418.419.120.326.817.119.820.9
Percentage of Revenues us-gaap:SalesChannelDirectlyToConsumer ntgr:SMB0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:SalesChannelThroughIntermediary, ntgr:ConnectedHome


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-02
Value4426293526363730464143444853
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax15.811.611.713.311.714.813.17.712.612.116.012.614.716.4
Percentage of Revenues15.811.60.013.311.714.813.17.712.612.116.012.614.716.4
Percentage of Revenues us-gaap:SalesChannelThroughIntermediary ntgr:ConnectedHome0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:SalesChannelThroughIntermediary, ntgr:SMB


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-02
Value0.8710.7971.0950.9720.9221.4760.671.1910.71.0630.7761.1140.5880.79
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.30.30.40.40.40.60.20.30.20.30.30.30.20.2
Percentage of Revenues0.30.30.00.40.40.60.20.30.20.30.30.30.20.2
Percentage of Revenues us-gaap:SalesChannelThroughIntermediary ntgr:SMB0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome


None
Period End2020-06-282019-06-30
Value0.3430.672
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.3
Percentage of Revenues0.10.3
Percentage of Revenues us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome0.00.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedNetGainLossFromCashFlowHedgesIncludingPortionAttributableToNoncontrollingInterest


None
Period End2020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-01
Value0.6760.2950.5480.6720.4140.430.751.187-1.702
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.30.10.20.30.20.10.20.3-0.5
Percentage of Revenues0.30.00.20.30.20.10.20.3-0.5
Percentage of Revenues us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedNetGainLossFromCashFlowHedgesIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.00.00.00.00.00.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:StatementBusinessSegments

ntgr:ConnectedHome


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-03
Value230164183190167169207194191177204183185194217215198216
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax82.171.672.771.772.668.071.848.652.151.574.751.556.260.10.00.00.00.0
Percentage of Revenues82.171.60.071.772.668.071.848.652.151.574.751.556.260.10.00.00.00.0
Percentage of Revenues ntgr:ConnectedHome0.00.00.00.00.00.00.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.0

ntgr:SMB


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-03
Value506569756379717470707461666877747469
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax17.928.427.328.327.432.024.618.719.320.627.117.420.021.20.00.00.00.0
Percentage of Revenues17.928.40.028.327.432.024.618.719.320.627.117.420.021.20.00.00.00.0
Percentage of Revenues ntgr:SMB0.00.00.00.00.00.00.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:StatementGeographical

country:US


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-01
Value197154164174152145184173170157
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax70.667.364.965.866.258.564.043.346.545.6
Percentage of Revenues70.667.30.065.866.258.564.043.346.545.6
Percentage of Revenues country:US0.00.00.00.00.00.00.061.967.568.8

ntgr:APAC


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-02
Value2929333730442046384425484853
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax10.512.913.214.213.317.77.111.710.413.09.513.814.716.6
Percentage of Revenues10.512.90.014.213.317.77.111.710.413.09.513.814.716.6
Percentage of Revenues ntgr:APAC0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

ntgr:AmericasExcludingUnitedStates


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-01
Value4.4133.3854.9433.8744.3852.2385.3432.3523.9872.866
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.61.52.01.51.90.91.80.61.10.8
Percentage of Revenues1.61.50.01.51.90.91.80.61.10.8
Percentage of Revenues ntgr:AmericasExcludingUnitedStates0.00.00.00.00.00.00.028.953.055.9

srt:Americas


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-01
Value202158169178157148190175174160
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax72.268.866.967.268.159.465.943.947.546.4
Percentage of Revenues72.268.80.067.268.159.465.943.947.546.4
Percentage of Revenues srt:Americas0.00.00.00.00.00.00.00.00.00.0

srt:AsiaPacific


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-01
Value29293337304439403237
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax10.512.913.214.213.317.713.810.18.910.9
Percentage of Revenues10.512.90.014.213.317.713.810.18.910.9
Percentage of Revenues srt:AsiaPacific0.00.00.00.00.00.00.00.00.00.0

us-gaap:EMEA


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-28
Value4842504943567.3726468662162555841605164867767
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax17.318.320.018.618.722.92.616.218.719.37.817.516.718.10.00.00.00.00.00.00.0
Percentage of Revenues17.318.30.018.618.722.92.616.218.719.37.817.516.718.10.00.00.00.00.00.00.0
Percentage of Revenues us-gaap:EMEA0.00.00.00.00.00.00.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:StatementGeographical, us-gaap:StatementBusinessSegments

ntgr:APAC, ntgr:ConnectedHome


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-01
Value19171921182926252024
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.87.67.98.27.912.09.36.35.57.0
Percentage of Revenues6.87.60.08.27.912.09.36.35.57.0
Percentage of Revenues ntgr:APAC ntgr:ConnectedHome0.00.00.00.00.00.00.00.00.00.0

ntgr:APAC, ntgr:SMB


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-01
Value10121315121412151213
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.75.35.36.05.35.74.53.83.43.9
Percentage of Revenues3.75.30.06.05.35.74.53.83.43.9
Percentage of Revenues ntgr:APAC ntgr:SMB0.00.00.00.00.00.00.00.00.00.0

srt:Americas, ntgr:ConnectedHome


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-01
Value179129137146131113159141145129
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax64.256.254.555.257.045.655.435.439.737.4
Percentage of Revenues64.256.20.055.257.045.655.435.439.737.4
Percentage of Revenues srt:Americas ntgr:ConnectedHome0.00.00.00.00.00.00.00.00.00.0

srt:Americas, ntgr:SMB


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-01
Value22293131253430342830
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax8.012.612.412.011.013.810.58.57.99.0
Percentage of Revenues8.012.60.012.011.013.810.58.57.99.0
Percentage of Revenues srt:Americas ntgr:SMB0.00.00.00.00.00.00.00.00.00.0

us-gaap:EMEA, ntgr:ConnectedHome


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-01
Value31172622172528272021
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.17.810.38.37.610.310.06.95.66.1
Percentage of Revenues11.17.80.08.37.610.310.06.95.66.1
Percentage of Revenues us-gaap:EMEA ntgr:ConnectedHome0.00.00.00.00.00.00.00.00.00.0

us-gaap:EMEA, ntgr:SMB


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-01
Value17242427253129252726
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax6.110.59.610.311.112.610.46.47.67.7
Percentage of Revenues6.110.50.010.311.112.610.46.47.67.7
Percentage of Revenues us-gaap:EMEA ntgr:SMB0.00.00.00.00.00.00.00.00.00.0

None

us-gaap:Revenues

us-gaap:Revenues


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-02
Value280229252265230249288400366344274355330323
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:CostOfGoodsAndServicesSold

us-gaap:CostOfGoodsAndServicesSold


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312010-10-032010-06-27
Value198163183188165167-57.392276257240292252238226257235213209255245211220252251240251255260254205219217226225214205200191177160126
Percentage of CostOfGoodsAndServicesSold100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues71.071.20.071.071.767.1-19.969.070.269.7106.971.072.270.10.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CostOfGoodsAndServicesSold us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome


None
Period End2020-06-282019-06-30
Value0.001-0.006
Percentage of CostOfGoodsAndServicesSold0.0-0.0
Percentage of Revenues0.0-0.0
Percentage of Revenues us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome0.00.0

us-gaap:CostOfGoodsAndServicesSold us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedNetGainLossFromCashFlowHedgesIncludingPortionAttributableToNoncontrollingInterest


None
Period End2020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-01
Value-0.002-0.002-0.002-0.006-0.002-0.002-0.006-0.0070.006
Percentage of CostOfGoodsAndServicesSold-0.0-0.0-0.0-0.0-0.00.0-0.0-0.00.0
Percentage of Revenues-0.00.0-0.0-0.0-0.0-0.0-0.0-0.00.0
Percentage of Revenues us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedNetGainLossFromCashFlowHedgesIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.00.00.00.00.00.0

None

us-gaap:GrossProfit

us-gaap:GrossProfit


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312010-10-032010-06-272010-03-28
Value81666977658290124109104104103919611010397100105967788100102979710010110387919794999496908781756972
Percentage of GrossProfit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues29.028.827.529.028.332.931.431.029.830.338.029.027.829.90.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:OperatingExpenses

us-gaap:OperatingExpenses


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312010-10-032010-06-27
Value726569656568-19.78211411296847772747773727474706670147757274777781646267636361636257565348
Percentage of OperatingExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues25.928.50.024.528.227.3-6.828.630.627.830.921.922.022.90.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:ResearchAndDevelopmentExpense

us-gaap:ResearchAndDevelopmentExpense


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312010-10-032010-06-27
Value211920191818-13.1553531282523232223212122232121202223222222232315141714141312111110109.945
Percentage of ResearchAndDevelopmentExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues7.68.60.07.38.17.6-4.68.88.68.49.36.57.17.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ResearchAndDevelopmentExpense us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome


None
Period End2020-06-282019-06-30
Value0.007-0.02
Percentage of ResearchAndDevelopmentExpense0.0-0.1
Percentage of Revenues0.0-0.0
Percentage of Revenues us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome0.00.0

us-gaap:ResearchAndDevelopmentExpense us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedNetGainLossFromCashFlowHedgesIncludingPortionAttributableToNoncontrollingInterest


None
Period End2020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-01
Value-0.002-0.01-0.002-0.02-0.026-0.0030.0-0.0130.099
Percentage of ResearchAndDevelopmentExpense-0.0-0.0-0.0-0.1-0.10.00.0-0.00.3
Percentage of Revenues-0.00.0-0.0-0.0-0.0-0.00.0-0.00.0
Percentage of Revenues us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedNetGainLossFromCashFlowHedgesIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.00.00.00.00.00.0

None

us-gaap:GeneralAndAdministrativeExpense

us-gaap:GeneralAndAdministrativeExpense


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312010-10-032010-06-27
Value1513131110134.5032320161614121314141312121110111111111112111212111111108.37910109.6459.5239.3588.397
Percentage of GeneralAndAdministrativeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues5.55.70.04.54.55.31.65.85.64.85.94.03.94.10.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:GeneralAndAdministrativeExpense us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome


None
Period End2020-06-282019-06-30
Value-0.001-0.012
Percentage of GeneralAndAdministrativeExpense-0.0-0.1
Percentage of Revenues-0.0-0.0
Percentage of Revenues us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome0.00.0

us-gaap:GeneralAndAdministrativeExpense us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedNetGainLossFromCashFlowHedgesIncludingPortionAttributableToNoncontrollingInterest


None
Period End2020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-01
Value-0.013-0.011-0.007-0.012-0.011-0.012-0.032-0.050.041
Percentage of GeneralAndAdministrativeExpense-0.1-0.1-0.1-0.1-0.1-0.3-0.1-0.20.2
Percentage of Revenues-0.00.0-0.0-0.0-0.0-0.0-0.0-0.00.0
Percentage of Revenues us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedNetGainLossFromCashFlowHedgesIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.00.00.00.00.00.0

None

us-gaap:SellingAndMarketingExpense

us-gaap:SellingAndMarketingExpense


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312010-10-032010-06-27
Value3433343334351249464343403638393736373935343739393839373940363537373839393936363430
Percentage of SellingAndMarketingExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues12.314.40.012.615.014.44.512.212.812.715.711.311.011.80.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:SellingAndMarketingExpense us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome


None
Period End2020-06-282019-06-30
Value0.005-0.098
Percentage of SellingAndMarketingExpense0.0-0.3
Percentage of Revenues0.0-0.0
Percentage of Revenues us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome0.00.0

us-gaap:SellingAndMarketingExpense us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedNetGainLossFromCashFlowHedgesIncludingPortionAttributableToNoncontrollingInterest


None
Period End2020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-01
Value-0.077-0.075-0.042-0.098-0.069-0.06-0.115-0.1570.23
Percentage of SellingAndMarketingExpense-0.2-0.2-0.1-0.3-0.2-0.5-0.2-0.30.5
Percentage of Revenues-0.00.0-0.0-0.0-0.0-0.0-0.0-0.00.1
Percentage of Revenues us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedNetGainLossFromCashFlowHedgesIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.00.00.00.00.00.0

None

us-gaap:OperatingIncomeLoss

us-gaap:OperatingIncomeLoss


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312010-10-032010-06-27
Value8.8670.669-0.211120.32614239.611-2.9958.487192519223329252530261117-46.585262423232421232830303633332730252120
Percentage of OperatingIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues3.20.30.04.50.15.68.22.4-0.82.57.07.15.87.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:OtherNonoperatingIncomeExpense


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312010-10-032010-06-27
Value314000.0-4586000.0419000.0-403000.0487000.0341000.0-128000.0829000.01061000.0-1252000.0640000.0666000.0383000.0335000.0461000.0116000.0-332000.0-366000.0-21000.0-199000.0-343000.0475000.0544000.02246000.0-227000.0-108000.0-494000.0511000.0-548000.074000.0-153000.03070000.0354000.0-601000.0-198000.0-267000.0-341000.0-330000.0-176000.0-326000.0132000.0
Percentage of OtherNonoperatingIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues0.1-2.00.0-0.20.20.1-0.00.20.3-0.40.20.20.10.10.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:AllocatedShareBasedCompensationExpense

us-gaap:AllocatedShareBasedCompensationExpense


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-03
Value9.1726.3368.9546.9866.7396.458-0.2139.5548.978.155.7355.5835.7015.1284.6494.875.0194.4114.3084.1114.0584.3484.7885.1624.9345.134.974.5114.3913.593.5664.0193.3953.3923.4283.4543.5083.372
Percentage of AllocatedShareBasedCompensationExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues3.30.00.02.62.92.6-0.12.42.42.42.11.61.71.60.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AllocatedShareBasedCompensationExpense us-gaap:IncomeStatementLocation

us-gaap:CostOfSales


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-30
Value1.5010.7050.7140.7060.7550.668-0.1360.8530.8660.8520.5280.4990.5420.4360.4240.4260.4510.4390.3760.3580.3360.4960.5040.5730.4890.4710.5030.4790.4060.1890.3260.473
Percentage of AllocatedShareBasedCompensationExpense16.411.18.010.111.210.363.88.99.710.59.28.99.58.59.18.79.010.08.78.78.311.410.511.19.99.210.110.69.25.39.111.8
Percentage of Revenues0.50.00.00.30.30.3-0.00.20.20.20.20.10.20.10.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Revenues us-gaap:CostOfSales0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:GeneralAndAdministrativeExpense


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-30
Value4.0742.8182.8382.6872.6112.5570.6514.0663.5673.1922.4082.3742.3482.1261.9912.0572.1121.9091.7921.7031.6771.6141.8371.9251.8171.3141.871.6541.541.4991.3911.53
Percentage of AllocatedShareBasedCompensationExpense44.444.531.738.538.739.6-305.642.639.839.242.042.541.241.542.842.242.143.341.641.441.337.138.437.336.825.637.636.735.141.839.038.1
Percentage of Revenues1.50.00.01.01.11.00.21.01.00.90.90.70.70.70.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Revenues us-gaap:GeneralAndAdministrativeExpense0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ResearchAndDevelopmentExpense


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-30
Value1.7071.0342.5561.4961.2881.192-1.1481.9071.9491.5751.1791.0561.3731.3191.0041.0871.1180.8660.9560.8770.7730.8451.0381.2551.2271.3961.0891.0471.1350.6720.7210.778
Percentage of AllocatedShareBasedCompensationExpense18.616.328.521.419.118.5539.020.021.719.320.618.924.125.721.622.322.319.622.221.319.019.421.724.324.927.221.923.225.818.720.219.4
Percentage of Revenues0.60.00.00.60.60.5-0.40.50.50.50.40.30.40.40.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Revenues us-gaap:ResearchAndDevelopmentExpense0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:SellingAndMarketingExpense


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-30
Value1.891.7792.8462.0972.0852.0410.422.7282.5882.5311.621.6541.4381.2471.231.31.3381.1971.1841.1731.2721.3931.4091.4091.4011.9491.5081.3311.311.231.1281.238
Percentage of AllocatedShareBasedCompensationExpense20.628.131.830.030.931.6-197.228.628.931.128.229.625.224.326.526.726.727.127.528.531.332.029.427.328.438.030.329.529.834.331.630.8
Percentage of Revenues0.70.00.00.80.90.80.10.70.70.70.60.50.40.40.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Revenues us-gaap:SellingAndMarketingExpense0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest


None
Period End2020-06-282020-03-292019-06-302019-03-31
Value9.23-3.6551.59515
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest100.0100.0100.0100.0
Percentage of Revenues3.3-1.60.76.0

None

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312010-10-032010-06-27
Value9.23-3.6550.625121.595152411-0.8627.983202619233330252530251018-45.962282423232421232833313533322730252121
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues3.3-1.60.04.60.76.08.43.0-0.22.37.57.56.07.30.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome


None
Period End2020-06-282019-06-30
Value0.3550.536
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments3.833.6
Percentage of Revenues0.10.2
Percentage of Revenues us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome0.00.0

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedNetGainLossFromCashFlowHedgesIncludingPortionAttributableToNoncontrollingInterest


None
Period End2020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-01
Value0.5820.1970.4950.5360.3060.3530.5970.96-1.326
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments-15.931.54.033.62.01.55.0-111.4-16.6
Percentage of Revenues0.30.00.20.20.10.10.10.3-0.4
Percentage of Revenues us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedNetGainLossFromCashFlowHedgesIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.00.00.00.00.00.0

None

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxExpenseBenefit


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312010-10-032010-06-272010-03-28
Value3.2470.5181.045-0.2280.7562.207192.784.3682.393525.7675.3767.535119.1449.4278.8938.927107.25810-5.6098.8479.6989.03711107.1448.545129.929.93310106.1786.7429.142118.435109.856
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues1.20.20.4-0.10.30.96.60.71.20.719.21.61.62.30.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:IncomeTaxExpenseBenefit us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome


None
Period End2020-06-282019-06-30
Value0.0750.113
Percentage of IncomeTaxExpenseBenefit2.314.9
Percentage of Revenues0.00.0
Percentage of Revenues us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome0.00.0

us-gaap:IncomeTaxExpenseBenefit us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedNetGainLossFromCashFlowHedgesIncludingPortionAttributableToNoncontrollingInterest


None
Period End2020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-01
Value0.1220.0410.1040.1130.064-0.1720.1250.202-0.278
Percentage of IncomeTaxExpenseBenefit23.63.9-45.614.92.9-0.94.54.6-11.6
Percentage of Revenues0.10.00.00.00.0-0.10.00.1-0.1
Percentage of Revenues us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedNetGainLossFromCashFlowHedgesIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.00.00.00.00.00.0

None

us-gaap:ProfitLoss

us-gaap:ProfitLoss


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-02
Value5.983-4.173-0.42120.83912-27.8399.15-5.235.59-31.934201415
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues2.1-1.8-0.24.70.45.2-9.62.3-1.41.6-11.65.84.44.9

us-gaap:ProfitLoss us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome


None
Period End2020-06-282019-06-30
Value0.280.423
Percentage of ProfitLoss4.750.4
Percentage of Revenues0.10.2
Percentage of Revenues us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome0.00.0

us-gaap:ProfitLoss us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedNetGainLossFromCashFlowHedgesIncludingPortionAttributableToNoncontrollingInterest


None
Period End2020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-01
Value0.460.1560.3910.4230.2420.2980.6691.229-1.732
Percentage of ProfitLoss-11.0-37.13.150.41.9-1.17.3-23.5-31.0
Percentage of Revenues0.20.00.10.20.10.10.20.3-0.5
Percentage of Revenues us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedNetGainLossFromCashFlowHedgesIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.00.00.00.00.00.0

None

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax


None
Period End2020-06-282020-03-292019-09-292019-06-302019-03-312018-09-302018-07-012018-04-01
Value-364000.0350000.0-30000.0-2000.017000.040000.0109000.0631000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-0.10.2-0.0-0.00.00.00.00.2

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


None
Period End2020-06-282020-03-292019-09-292019-06-302019-03-312018-09-302018-07-012018-04-01
Value-364000.0350000.0-30000.0-2000.017000.040000.0109000.0631000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-0.10.2-0.0-0.00.00.00.00.2
Percentage of Revenues us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.0

None

us-gaap:OtherComprehensiveIncomeLossNetOfTax

us-gaap:OtherComprehensiveIncomeLossNetOfTax


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-03
Value-364000.0350000.039000.0-30000.0-2000.029000.021000.071000.0162000.0582000.03911000.048000.0-5212000.0-1536000.01696000.0183000.0540000.0-484000.046000.014000.0-77000.0-18000.0-112000.0140000.0142000.0-201000.0220000.0-199000.0-91000.0135000.0175000.0-287000.0171000.0-78000.037000.0-77000.0116000.0
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-0.10.20.0-0.0-0.00.00.00.00.00.21.40.0-1.6-0.50.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-01
Value5.619-3.823-0.381120.83712-27.8189.221-5.0686.172-28.02320
Percentage of ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues2.0-1.70.04.70.45.2-9.62.3-1.41.8-10.25.9

None

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312010-10-032010-06-272010-03-28
Value5.983-4.173-0.42120.83912-19.4719.949-5.235.59-31.9342014152221161621153.6678.011-40.35320141411141315162321252226202113131013
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues2.1-1.8-0.24.70.45.2-6.72.5-1.41.6-11.65.84.44.90.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


None
Period End2020-06-282020-03-292019-09-292019-06-302019-03-312018-09-302018-07-012018-04-012017-10-012017-07-022017-04-02
Value5.983-4.173120.839129.949-5.235.59201415
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues2.1-1.84.70.45.22.5-1.41.65.84.44.9
Percentage of Revenues us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:Assets

us-gaap:Assets


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032010-12-31
Value92887995594399297010431533125612131208116111151142118410961040102510509749269891048108110771090109311411128104510341018988940971864820780
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:Liabilities

us-gaap:Liabilities


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032010-12-31
Value322281347320370337415598500457478384339334387319299300341313266260327304303307320322332267279285288267332254243279
Percentage of Liabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets34.832.036.334.037.334.839.939.139.937.739.633.130.429.332.729.128.829.332.532.128.826.331.228.228.228.229.328.329.425.627.128.129.228.534.229.429.635.9

None

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:LiabilitiesAndStockholdersEquity


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032010-12-31
Value92887995594399297010431533125612131208116111151142118410961040102510509749269891048108110771090109311411128104510341018988940971864820780
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032010-12-312009-12-312008-12-31
Value606597608622622632627910755755730776775808796777740724708661659729721776774782773818796777754732699672638609577500414390
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets65.268.063.766.062.765.260.159.460.162.360.466.969.670.767.370.971.270.767.567.971.273.768.871.871.871.870.771.770.674.472.971.970.871.565.870.670.464.10.00.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value0.0070.3710.021-0.0180.0120.014-0.015-0.036-0.107-0.269-0.851-4.762-4.810.4021.9380.0030.0380.0690.0040.0230.2810.0240.067
Percentage of StockholdersEquity0.00.10.0-0.00.00.0-0.0-0.0-0.0-0.0-0.1-0.6-0.60.00.20.00.00.00.00.00.10.00.0
Percentage of Assets0.00.00.0-0.00.00.0-0.0-0.0-0.0-0.0-0.1-0.4-0.40.00.20.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value853840831821812804793785625615603566513454421394364316280266
Percentage of StockholdersEquity140.7140.6136.6132.1130.5127.1126.586.382.881.582.671.172.462.954.552.357.063.267.768.1
Percentage of Assets91.895.687.087.281.882.976.151.249.850.849.947.848.843.338.638.137.540.50.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value0.030.030.030.0310.0310.0320.0320.0320.0320.0320.0310.0330.0330.0350.0370.0380.0380.0360.0350.034
Percentage of StockholdersEquity0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value-247.028-243.251-222.723-199.841-190.005-171.551-166.05124129140128228195267351360274184133124
Percentage of StockholdersEquity-40.8-40.7-36.6-32.1-30.5-27.1-26.513.717.218.517.528.727.637.145.547.743.036.832.331.9
Percentage of Assets-26.6-27.7-23.3-21.2-19.1-17.7-15.98.110.311.510.619.318.625.532.234.828.323.60.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:AssetsCurrent

us-gaap:AssetsCurrent


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032010-12-31
Value721677744726771746857125810359991015945901924962885827802821768713769822795788798800846828877864851843805834726681668
Percentage of AssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets77.777.177.977.177.876.982.282.182.482.484.081.480.880.981.380.779.578.378.278.877.077.878.573.673.173.373.174.273.484.083.583.685.485.685.984.183.185.6

None

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashAndCashEquivalentsAtCarryingValue


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312010-10-032010-06-272009-12-312008-12-31
Value25220419016821418520139322725820224619023524027322622618120213614614114114612914316014627914913415714920817412915712698110172192
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets27.223.219.917.821.619.119.325.718.121.316.821.217.120.620.325.021.722.117.320.814.814.813.513.113.611.913.114.113.026.714.413.215.915.921.520.215.80.016.20.00.00.00.0

None

us-gaap:ShortTermInvestments

us-gaap:ShortTermInvestments


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032010-12-31
Value5.9195.4225.4993.9153.7267313612812712612611412512512912610696617610111510095110105140141143227227203220144146148144
Percentage of ShortTermInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.60.60.60.40.42.87.08.910.210.510.510.910.311.010.611.812.210.49.26.38.210.211.19.38.910.19.612.312.513.722.022.420.623.414.917.018.118.5

None

us-gaap:AccountsReceivableNetCurrent

us-gaap:AccountsReceivableNetCurrent


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032010-12-31
Value277257277248238262303358343317412295304265313233230218290274246254275278282291266269288237256248271249261218209226
Percentage of AccountsReceivableNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets29.929.329.026.324.027.129.123.427.426.134.225.527.323.226.521.322.221.327.728.126.625.726.325.826.226.724.423.725.622.824.724.427.526.526.925.325.629.1

None

us-gaap:InventoryNet

us-gaap:InventoryNet


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032010-12-31
Value150180235275276236243330291266245249263267247217207215213170188200222206194201224211185158174178152134163135137127
Percentage of InventoryNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets16.220.524.629.227.824.323.421.623.222.020.321.523.623.420.919.820.021.020.317.420.420.321.319.118.018.520.518.516.415.216.917.615.514.316.915.716.816.3

None

us-gaap:PrepaidExpenseAndOtherAssetsCurrent

us-gaap:PrepaidExpenseAndOtherAssetsCurrent


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032010-12-31
Value3529353138343539442927272729353036353931393838404037333841343338362932293623
Percentage of PrepaidExpenseAndOtherAssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.83.43.73.33.93.63.52.53.62.52.22.42.52.63.02.83.53.53.73.24.23.83.63.73.83.43.13.43.73.33.33.73.73.13.33.54.43.1

None

us-gaap:NoncurrentAssets

us-gaap:NoncurrentAssets


None
Period End2020-06-282020-03-292019-12-312018-12-31
Value47434620
Percentage of NoncurrentAssets100.0100.0100.0100.0
Percentage of Assets5.15.04.91.9

us-gaap:NoncurrentAssets us-gaap:StatementGeographical

country:CN


None
Period End2020-06-282020-03-292019-12-312018-12-31
Value3.9444.5915.047.652
Percentage of NoncurrentAssets8.310.410.837.9
Percentage of Assets0.40.50.50.7
Percentage of Assets country:CN0.00.00.00.0

country:SG


None
Period End2020-06-28
Value5.999
Percentage of NoncurrentAssets12.7
Percentage of Assets0.6
Percentage of Assets country:SG0.0

country:US


None
Period End2020-06-282020-03-292019-12-312018-12-31
Value2021234.993
Percentage of NoncurrentAssets44.049.849.724.7
Percentage of Assets2.22.52.40.5
Percentage of Assets country:US0.00.00.00.0

ntgr:AmericasExcludingUnitedStates


None
Period End2020-06-282020-03-292019-12-31
Value3.7033.5224.036
Percentage of NoncurrentAssets7.88.08.7
Percentage of Assets0.40.40.4
Percentage of Assets ntgr:AmericasExcludingUnitedStates0.00.00.0

ntgr:AsiaPacificExcludingChina


None
Period End2020-03-292019-12-312018-12-31
Value9.731103.078
Percentage of NoncurrentAssets22.122.915.3
Percentage of Assets1.11.10.3
Percentage of Assets ntgr:AsiaPacificExcludingChina0.00.00.0

ntgr:AsiaPacificExcludingSingaporeAndChina


None
Period End2020-06-282019-12-31
Value8.92510
Percentage of NoncurrentAssets18.922.8
Percentage of Assets1.01.1
Percentage of Assets ntgr:AsiaPacificExcludingSingaporeAndChina0.00.0

us-gaap:EMEA


None
Period End2020-06-282020-03-292019-12-312018-12-31
Value3.9324.1973.7820.095
Percentage of NoncurrentAssets8.39.58.10.5
Percentage of Assets0.40.50.40.0
Percentage of Assets us-gaap:EMEA0.00.00.00.0

None

us-gaap:PropertyPlantAndEquipmentGross

us-gaap:PropertyPlantAndEquipmentGross


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312010-12-31
Value12411711612412211911616012912412312111712512313113112812612312112111811210810298928876737065605951
Percentage of PropertyPlantAndEquipmentGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets13.413.412.113.212.412.311.110.410.310.210.210.510.511.010.412.012.612.512.012.713.112.211.310.410.19.49.08.17.97.37.16.96.66.46.16.6

us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType

ntgr:FurnitureFixturesAndLeaseholdImprovements


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312010-12-31
Value181818181818182121212122212120201918181817191917161414131312121212109.7579.45
Percentage of PropertyPlantAndEquipmentGross14.615.816.114.915.015.515.713.616.517.317.618.618.216.716.915.314.514.314.514.714.816.316.315.715.513.914.214.714.816.817.317.618.517.216.518.3
Percentage of Assets2.02.11.92.01.91.91.81.41.71.81.81.91.91.81.81.81.81.81.71.91.92.01.81.61.61.31.31.21.21.21.21.21.21.11.01.2
Percentage of Assets ntgr:FurnitureFixturesAndLeaseholdImprovements0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ComputerEquipment


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312010-12-31
Value10109.8839.8859.8159.8149.20513121010101010101111111110109.9849.7799.3348.9168.7288.5278.0887.6997.4227.297.1546.9366.5827.1096.057
Percentage of PropertyPlantAndEquipmentGross8.38.78.58.08.08.27.98.29.98.28.28.88.78.18.58.88.89.08.88.48.28.28.28.38.28.68.68.78.79.79.910.210.610.912.011.7
Percentage of Assets1.11.21.01.01.01.00.90.91.00.80.80.90.90.90.91.11.11.11.11.11.11.00.90.90.80.80.80.70.70.70.70.70.70.70.70.8
Percentage of Assets us-gaap:ComputerEquipment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:MachineryAndEquipment


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312010-12-31
Value676059676662606661636259576563686967666563626057545350464333312825222117
Percentage of PropertyPlantAndEquipmentGross54.051.851.454.553.952.152.241.548.051.150.748.748.652.351.452.452.852.652.752.652.351.250.750.850.452.251.250.248.844.143.040.538.537.936.833.9
Percentage of Assets7.26.96.27.26.76.45.84.34.95.25.25.15.15.85.46.36.66.66.36.76.86.35.75.35.14.94.64.13.83.23.12.82.52.42.22.2
Percentage of Assets us-gaap:MachineryAndEquipment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:SoftwareAndSoftwareDevelopmentCosts


None
Period End2020-06-282020-03-292019-12-312018-12-31
Value28272728
Percentage of PropertyPlantAndEquipmentGross23.123.724.024.2
Percentage of Assets3.13.22.92.7
Percentage of Assets us-gaap:SoftwareAndSoftwareDevelopmentCosts0.00.00.00.0

None

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312010-12-31
Value10810198104101989510399104102101981061041111111071049995938884807671676257545148454334
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets11.711.510.311.110.210.29.26.78.08.68.58.78.89.38.810.210.710.59.910.210.39.48.57.87.47.06.65.95.55.55.35.14.94.84.54.4

None

us-gaap:AmortizationOfIntangibleAssets

us-gaap:AmortizationOfIntangibleAssets


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-03
Value1.61.61.61.61.72.11.02.42.52.52.52.73.24.54.34.24.34.24.34.24.34.54.54.54.44.54.54.55.01.51.51.41.01.01.11.21.2
Percentage of AmortizationOfIntangibleAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:PropertyPlantAndEquipmentNet


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032010-12-31
Value1516171921202056291920201819191919202223252729272826272526181918171415161617
Percentage of PropertyPlantAndEquipmentNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.71.91.92.12.12.11.93.72.31.61.71.71.71.71.61.81.92.02.12.52.82.82.82.62.62.42.52.22.31.81.81.91.71.61.61.92.02.2

None

us-gaap:LongTermInvestments

us-gaap:LongTermInvestments


None
Period End2020-06-282019-12-31
Value9869000.08147000.0
Percentage of LongTermInvestments100.0100.0
Percentage of Assets1.10.9

us-gaap:LongTermInvestments us-gaap:InvestmentType

ntgr:LimitedPartnershipFund


None
Period End2020-06-28
Value400000.0
Percentage of LongTermInvestments4.1
Percentage of Assets0.0
Percentage of Assets ntgr:LimitedPartnershipFund0.0

None

us-gaap:Goodwill

us-gaap:Goodwill


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312009-12-31
Value808080808080801018585858585858581818181818181811551551551551551551001001008885858585747464
Percentage of Goodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.79.28.48.68.18.37.76.66.87.07.17.47.77.57.27.57.98.07.88.48.88.37.814.414.514.314.313.713.89.79.89.99.09.18.89.910.50.09.50.0

None

us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032010-12-312009-12-31
Value6.9158.5110111315172220222427303337364044485357616670757984889526272723192022236.2418.298
Percentage of IntangibleAssetsNetExcludingGoodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.71.01.11.21.31.61.61.51.61.92.12.42.72.93.23.33.94.44.75.56.26.26.36.57.07.37.77.88.42.52.72.72.32.12.22.52.80.80.0

None

us-gaap:FiniteLivedIntangibleAssetsNet

us-gaap:FiniteLivedIntangibleAssetsNet


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-30
Value6.9158.51101113151722202224273033373640444853576166707579848887262626
Percentage of FiniteLivedIntangibleAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.71.01.11.21.31.61.61.51.61.92.12.42.72.93.23.33.94.44.75.56.26.26.36.57.07.37.77.87.82.52.62.6

us-gaap:FiniteLivedIntangibleAssetsNet us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:CustomerRelatedIntangibleAssets


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292012-12-31
Value3.8225.1626.5037.8449.185101214151719202224262729313334363840424345474912
Percentage of FiniteLivedIntangibleAssetsNet55.360.764.467.069.171.073.064.277.777.176.375.774.772.868.977.073.370.367.865.864.062.460.859.558.357.356.455.547.7
Percentage of Assets0.40.60.70.80.91.11.20.91.21.41.61.82.02.12.22.52.93.13.23.64.03.93.83.94.14.24.34.31.2
Percentage of Assets us-gaap:CustomerRelatedIntangibleAssets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OtherIntangibleAssets


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-30
Value0.9151.0621.2081.3551.5051.6551.8052.0821.1441.261.4911.7221.9542.2552.5562.3322.5952.8593.1233.3863.653.9134.1774.4414.7044.9685.2325.4955.7743.4783.7282.577
Percentage of FiniteLivedIntangibleAssetsNet13.212.512.011.611.311.010.59.35.75.66.06.36.56.76.76.46.46.46.46.46.46.36.36.36.36.26.26.26.613.314.09.7
Percentage of Assets0.10.10.10.10.20.20.20.10.10.10.10.10.20.20.20.20.20.30.30.30.40.40.40.40.40.50.50.50.50.30.40.3
Percentage of Assets us-gaap:OtherIntangibleAssets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TechnologyBasedIntangibleAssets


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292012-12-31
Value2.1782.2862.3932.52.6072.7142.8215.9083.3233.8754.4274.9795.6796.839.2185.9888.197101214171921242628313310
Percentage of FiniteLivedIntangibleAssetsNet31.526.923.721.419.618.016.526.416.617.317.718.118.820.424.316.520.323.325.827.929.731.332.934.235.436.437.438.338.3
Percentage of Assets0.20.30.30.30.30.30.30.40.30.30.40.40.50.60.80.50.81.01.21.51.82.02.12.22.52.72.93.01.0
Percentage of Assets us-gaap:TechnologyBasedIntangibleAssets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OperatingLeaseRightOfUseAsset


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-31
Value3127283134360.0
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.00.0
Percentage of Assets3.43.13.03.43.43.80.0

None

us-gaap:OtherAssetsNoncurrent

us-gaap:OtherAssetsNoncurrent


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032010-12-31
Value7268747271716794868561827979787471757647484848313029262422222220151414131314
Percentage of OtherAssetsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets7.87.87.87.77.27.36.56.16.97.15.17.17.17.06.76.86.97.47.34.95.24.94.62.92.82.72.42.22.02.12.22.01.51.61.51.61.61.8

None

us-gaap:LiabilitiesCurrent

us-gaap:LiabilitiesCurrent


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032010-12-31
Value270234298272314280383524444402424352307301356291273274315288242237304282283287300302312247260263266243308230217254
Percentage of LiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets29.126.631.228.931.728.936.834.235.433.135.130.327.526.430.126.526.326.830.129.626.124.029.026.126.326.427.426.527.723.725.225.827.025.931.826.726.532.6

None

us-gaap:AccountsPayableCurrent

us-gaap:AccountsPayableCurrent


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032010-12-31
Value76398083108691391681079611192728911295807590987166106921019611411912982879110179117757289
Percentage of AccountsPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.24.58.48.910.97.113.411.08.67.99.38.06.57.99.58.87.87.38.610.17.76.710.18.59.48.810.510.511.57.98.48.910.28.512.18.88.811.4

None

us-gaap:OtherAccruedLiabilitiesCurrent

us-gaap:OtherAccruedLiabilitiesCurrent


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312010-12-31
Value292825282932366051433939352728252328342633283737353940393828313024212325
Percentage of OtherAccruedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.13.22.73.03.03.33.54.04.13.63.33.43.22.42.42.42.32.83.22.73.62.93.63.53.33.63.73.43.42.83.03.02.52.32.43.3

None

us-gaap:AccruedIncomeTaxesCurrent

us-gaap:AccruedIncomeTaxesCurrent


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312010-12-31
Value805000.01204000.01839000.01314000.01141000.02895000.02020000.06853000.01359000.09866000.07015000.05803000.009855000.05146000.01866000.003631000.01951000.05258000.004892000.02406000.01893000.001744000.01287000.03541000.004667000.01382000.01829000.005172000.04207000.03487000.0
Percentage of AccruedIncomeTaxesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.0
Percentage of Assets0.10.10.20.10.10.30.20.40.10.80.60.50.00.90.40.20.00.40.20.50.00.50.20.20.00.20.10.30.00.40.10.20.00.50.40.4

None

us-gaap:AccruedLiabilitiesCurrent

us-gaap:AccruedLiabilitiesCurrent


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032010-12-31
Value163172189163171177199282265239222187173149170142132148166132123122143133128141143136134119126120120115120107102110
Percentage of AccruedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets17.619.719.817.317.318.319.118.421.219.718.416.215.613.114.413.012.714.415.813.613.412.313.712.412.012.913.112.011.911.412.211.912.212.312.412.512.514.1

None

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OperatingLeaseLiabilityCurrent


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-31
Value8.8968.6979.3579.76510100.0
Percentage of OperatingLeaseLiabilityCurrent100.0100.0100.0100.0100.0100.00.0
Percentage of Assets1.01.01.01.01.01.10.0

None

us-gaap:ContractWithCustomerLiabilityCurrent

us-gaap:ContractWithCustomerLiabilityCurrent


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-31
Value8.1716.6696.455.81210111135303021
Percentage of ContractWithCustomerLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.90.80.70.61.01.21.12.32.42.61.8

None

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:OtherLiabilitiesNoncurrent


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032010-12-31
Value9.2887.9997.9888.0527.9077.812532423221716161512111111109.287.7847.7547.4415.7796.0536.266.3666.6576.9875.2935.2865.4434.8354.9955.155.1955.443
Percentage of OtherLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.00.90.80.90.80.81.23.51.91.91.81.51.51.41.31.21.11.11.11.11.00.80.70.70.50.60.60.60.60.70.50.50.60.50.50.60.60.7

None

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-31
Value2724252729310.0
Percentage of OperatingLeaseLiabilityNoncurrent100.0100.0100.0100.0100.0100.00.0
Percentage of Assets3.02.82.72.92.93.20.0

None

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032010-12-312009-12-312008-12-31
Value606597608622622632627910755755730776775808796777740724708661659729721776774782773818796777754732699672638609577500414390
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets65.268.063.766.062.765.260.159.460.162.360.466.969.670.767.370.971.270.767.567.971.273.768.871.871.871.870.771.770.674.472.971.970.871.565.870.670.464.10.00.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value0.0070.3710.021-0.0180.0120.014-0.015-0.036-0.107-0.269-0.851-4.762-4.810.4021.9380.0030.0380.0690.0040.0230.2810.0240.067
Percentage of StockholdersEquity0.00.10.0-0.00.00.0-0.0-0.0-0.0-0.0-0.1-0.6-0.60.00.20.00.00.00.00.00.10.00.0
Percentage of Assets0.00.00.0-0.00.00.0-0.0-0.0-0.0-0.0-0.1-0.4-0.40.00.20.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value853840831821812804793785625615603566513454421394364316280266
Percentage of StockholdersEquity140.7140.6136.6132.1130.5127.1126.586.382.881.582.671.172.462.954.552.357.063.267.768.1
Percentage of Assets91.895.687.087.281.882.976.151.249.850.849.947.848.843.338.638.137.540.50.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value0.030.030.030.0310.0310.0320.0320.0320.0320.0320.0310.0330.0330.0350.0370.0380.0380.0360.0350.034
Percentage of StockholdersEquity0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value-247.028-243.251-222.723-199.841-190.005-171.551-166.05124129140128228195267351360274184133124
Percentage of StockholdersEquity-40.8-40.7-36.6-32.1-30.5-27.1-26.513.717.218.517.528.727.637.145.547.743.036.832.331.9
Percentage of Assets-26.6-27.7-23.3-21.2-19.1-17.7-15.98.110.311.510.619.318.625.532.234.828.323.60.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest


None
Period End2020-06-282020-03-292019-12-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-31
Value606597608627934755755730776775808796
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets65.268.063.760.160.960.162.360.466.969.670.767.3

None

us-gaap:CommonStockValue

us-gaap:CommonStockValue


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032010-12-31
Value30000.030000.030000.031000.031000.032000.032000.032000.032000.032000.031000.032000.032000.033000.033000.033000.033000.033000.033000.032000.032000.035000.035000.035000.036000.037000.037000.039000.039000.039000.038000.038000.038000.038000.038000.038000.037000.036000.0
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:AdditionalPaidInCapital

us-gaap:AdditionalPaidInCapital


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032010-12-31
Value853840831821812804793785625615603594584576566555539522513474467462454445438432421415407402394388379373364358352316
Percentage of AdditionalPaidInCapital100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets91.895.687.087.281.882.976.151.249.850.849.951.252.450.547.850.651.851.048.848.750.546.843.341.240.639.738.636.436.138.538.138.238.439.837.541.443.040.5

None

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:RetainedEarningsAccumulatedDeficit


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032010-12-31
Value-247.028-243.251-222.723-199.841-190.005-171.551-166.05124129140128187196230228221201201195186192266267330336350351403388375360344320299274251224184
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-26.6-27.7-23.3-21.2-19.1-17.7-15.98.110.311.510.616.117.620.219.320.219.319.718.619.120.727.025.530.631.232.132.235.434.535.934.833.832.431.828.329.127.423.6

None

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032010-12-31
Value7000.0371000.021000.0-18000.012000.014000.0-15000.0-36000.0-107000.0-269000.0-851000.0-4762000.0-4810000.0402000.01938000.0242000.059000.0-481000.03000.0-43000.0-57000.020000.038000.0150000.010000.0-132000.069000.0-151000.048000.0139000.04000.0-171000.0116000.0-55000.023000.0-14000.063000.0281000.0
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.0-0.00.00.0-0.0-0.0-0.0-0.0-0.1-0.4-0.40.00.20.00.0-0.00.0-0.0-0.00.00.00.00.0-0.00.0-0.00.00.00.0-0.00.0-0.00.0-0.00.00.0

None

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue


None
Period End2020-06-282020-03-292019-09-292019-06-302019-03-312018-09-302018-07-012018-04-012017-10-012017-07-022017-04-02
Value9.1726.3366.9866.7396.4578.6128.978.155.5835.7015.128
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


None
Period End2020-06-282020-03-292019-09-292019-06-302019-03-312018-09-302018-07-012018-04-012017-10-012017-07-022017-04-02
Value9.1726.3366.9866.7396.4578.6128.978.155.5835.7015.128
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-31
Value632949-26.11727-37.193-177.06733-16.92956-13.90898-5.889.26138-0.3654124375.5541416114517221.844123243154.56217
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues22.612.60.0-9.811.8-14.9-61.38.4-4.616.5-5.127.6-1.82.90.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-31
Value-8.388-1.506-3.764-2.6542035-1.701-27.515-10.529-3.444-5.969-16.3228.067-5.594229.406-20.869-8.9747.639-8.54329-6.345-144.31681-5.137-51.2284.136-78.079-0.948-0.286-65.96820-2.747
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-3.0-0.70.0-1.08.714.4-0.6-6.9-2.9-1.0-2.2-4.62.4-1.70.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-31
Value-6.436-13.415-23.599-17.838-18.371-14.015-13.825159-3.942.373-23.826-25.832-47.179-8.467-70.949-3.874-21.127-21.026-27.475-10.364-61.143.2641.0663.6182.0855.751.9175.6472.7111.952226.52113
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-2.3-5.80.0-6.7-8.0-5.6-4.839.9-1.10.7-8.7-7.3-14.3-2.60.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-01
Value481422-46.60928-15.367-192.593166-31.39855
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues17.36.10.0-17.512.5-6.2-66.741.5-8.616.2

None

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-31
Value632949-26.11727-37.193-177.06733-16.92956-13.90898-5.889.26138-0.3654124375.5541416114517221.844123243154.56217
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues22.612.60.0-9.811.8-14.9-61.38.4-4.616.5-5.127.6-1.82.90.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312010-10-032010-06-272010-03-28
Value5.983-4.173-0.42120.83912-19.4719.949-5.235.59-31.9342014152221161621153.6678.011-40.35320141411141315162321252226202113131013
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues2.1-1.8-0.24.70.45.2-6.72.5-1.41.6-11.65.84.44.90.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


None
Period End2020-06-282020-03-292019-09-292019-06-302019-03-312018-09-302018-07-012018-04-012017-10-012017-07-022017-04-02
Value5.983-4.173120.839129.949-5.235.59201415
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues2.1-1.84.70.45.22.5-1.41.65.84.44.9
Percentage of Revenues us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:ProfitLoss

us-gaap:ProfitLoss


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-02
Value5.983-4.173-0.42120.83912-27.8399.15-5.235.59-31.934201415
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues2.1-1.8-0.24.70.45.2-9.62.3-1.41.6-11.65.84.44.9

us-gaap:ProfitLoss us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome


None
Period End2020-06-282019-06-30
Value0.280.423
Percentage of ProfitLoss4.750.4
Percentage of Revenues0.10.2
Percentage of Revenues us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome0.00.0

us-gaap:ProfitLoss us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedNetGainLossFromCashFlowHedgesIncludingPortionAttributableToNoncontrollingInterest


None
Period End2020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-01
Value0.460.1560.3910.4230.2420.2980.6691.229-1.732
Percentage of ProfitLoss-11.0-37.13.150.41.9-1.17.3-23.5-31.0
Percentage of Revenues0.20.00.10.20.10.10.20.3-0.5
Percentage of Revenues us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedNetGainLossFromCashFlowHedgesIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.00.00.00.00.00.0

None

us-gaap:DepreciationDepletionAndAmortization

us-gaap:DepreciationDepletionAndAmortization


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-31
Value4.7534.634.8294.6124.9375.0281.2635.9335.7685.8875.8755.9956.3587.8667.3927.7148.3798.5088.5148.6449.4779.2159.1928.9998.6568.7439.1099.4169.3874.9424.654.6323.8843.6093.6673.6153.7463.7073.613
Percentage of DepreciationDepletionAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:IncreaseDecreaseInAccountsReceivable

us-gaap:IncreaseDecreaseInAccountsReceivable


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-31
Value19-19.586299.435-23.896-41.1361031426-101.809117-8.99639-48.585793.36112-72.2211627-8.251-20.945-2.879-4.332-8.43824-3.481-18.51850-18.1187.152-22.93122-12.099428.69312-29.10951
Percentage of IncreaseDecreaseInAccountsReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:IncreaseDecreaseInInventories

us-gaap:IncreaseDecreaseInInventories


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-31
Value-27.841-52.484-36.217-0.73240-7.748-4.07382522-3.183-14.695-4.05319309.78-7.4662.18943-18.655-12.281-21.9341611-7.098-22.826132623-16.348-4.0132518-29.4127-1.826-8.6141217
Percentage of IncreaseDecreaseInInventories100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:IncreaseDecreaseInAccountsPayable

us-gaap:IncreaseDecreaseInAccountsPayable


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-31
Value36-41.488-2.04-25.49139-68.431-9.2425910-14.9941919-17.177-22.10615156.235-16.101-7.294264.431-38.93914-9.3115.117-18.245-4.743-10.26256-4.901-3.76-10.74521-37.751413.295-8.857-7.92249
Percentage of IncreaseDecreaseInAccountsPayable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:DeferredIncomeTaxExpenseBenefit

us-gaap:DeferredIncomeTaxExpenseBenefit


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-31
Value1.8251.042-1.882-1.6130.9681.1484.033-2.7071.764-0.63121-1.8541.320.468-4.05-2.533.3680.489-0.561-2.3692.606-0.386-18.128-1.8890.427-0.671-3.546-2.203-1.163-1.015-0.943-1.4260.301-0.477-3.105-1.9980.4460.036-2.079
Percentage of DeferredIncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:ShareBasedCompensation

us-gaap:ShareBasedCompensation


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-31
Value9.1726.3368.9546.9866.7396.458-0.2139.5548.978.155.7355.5835.7015.1284.6494.875.0194.4114.3084.1114.0584.3484.7885.1624.9345.134.974.5114.3913.593.5664.0193.3953.3923.4283.4543.5083.3722.99
Percentage of ShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-31
Value-8.388-1.506-3.764-2.6542035-1.701-27.515-10.529-3.444-5.969-16.3228.067-5.594229.406-20.869-8.9747.639-8.54329-6.345-144.31681-5.137-51.2284.136-78.079-0.948-0.286-65.96820-2.747
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-3.0-0.70.0-1.08.714.4-0.6-6.9-2.9-1.0-2.2-4.62.4-1.70.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-31
Value2.3561.2752.4332.3743.4655.958-7.6326.515103.1853.8693.6432.7283.4343.9881.9243.0042.0562.8582.9422.5675.6335.9174.0036.3333.0856.3413.954.9982.7613.274.6285.4021.4622.3951.8962.0141.9062.671
Percentage of PaymentsToAcquirePropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-31
Value-6.436-13.415-23.599-17.838-18.371-14.015-13.825159-3.942.373-23.826-25.832-47.179-8.467-70.949-3.874-21.127-21.026-27.475-10.364-61.143.2641.0663.6182.0855.751.9175.6472.7111.952226.52113
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Revenues-2.3-5.80.0-6.7-8.0-5.6-4.839.9-1.10.7-8.7-7.3-14.3-2.60.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

None

us-gaap:PaymentsForRepurchaseOfCommonStock

us-gaap:PaymentsForRepurchaseOfCommonStock


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-31
Value7.5152320161515150.00.026294511150.44916101226728.57225232815630.0030.1470.3360.0350.00.2190.5960.0270.00.00.8990.082
Percentage of PaymentsForRepurchaseOfCommonStock100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.00.00.0100.0100.0

None

us-gaap:EffectiveIncomeTaxRateContinuingOperations

us-gaap:EffectiveIncomeTaxRateContinuingOperations


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-03
Value0.352-0.1420.034-0.0190.4740.1470.0980.233-5.0670.30.5190.2170.2690.320.0030.3020.370.349-0.080.4170.6640.5560.3540.3060.3970.3850.0330.4180.3380.3580.0290.2940.3160.2960.020.1880.2470.301
Percentage of EffectiveIncomeTaxRateContinuingOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber

us-gaap:EmployeeStockOption


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292012-12-31
Value1975000.02163000.02188000.02214000.01809000.01869000.01969000.02025000.02099000.02149000.01879000.01981000.02069000.01801000.01884000.02065000.02304000.02648000.02461000.03599000.03729000.03671000.03939000.04103000.04166000.03890000.04165000.04356000.04324000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

None

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

us-gaap:EmployeeStockOption


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292012-12-31
Value26.5126.0926.0325.9325.5925.5425.342.040.7140.2534.0833.4433.231.2331.1431.1631.2431.3130.0830.7830.7130.7130.5830.4730.4530.1930.1130.0429.29
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ntgr:AmortizationOfIntangibleAsset

ntgr:AmortizationOfIntangibleAsset


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-03
Value1.5191.5191.5191.521.6822.010.8682.3042.3462.4612.4612.6083.1464.3824.2374.1654.1664.1654.1654.1654.2434.3964.3964.3964.3914.394.4354.4394.8721.4711.4461.3541.0160.9471.0481.0641.1891.357
Percentage of AmortizationOfIntangibleAsset100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ntgr:CorporateAndUnallocatedIncome

ntgr:CorporateAndUnallocatedIncome


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-03
Value1918181615198.1833226222118171818171616141412121313131312121312111212-11.363-77.2871111-10.612
Percentage of CorporateAndUnallocatedIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ntgr:NumberOfGeographicRegions

ntgr:NumberOfGeographicRegions


None
Period End2020-06-282020-03-29
Value03.0
Percentage of NumberOfGeographicRegions0.0100.0

ntgr:RestructuringAndOtherCharges

ntgr:RestructuringAndOtherCharges


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-302010-12-312010-10-032010-06-27
Value1117000.0-135000.0931000.0-77000.01291000.0-68000.0830000.01000.01376000.0-9000.019000.019000.022000.037000.022000.0-130000.01311000.02678000.014000.01016000.0974000.04394000.019000.01360000.0-12000.0842000.03378000.0400000.01587000.0-30000.01190000.0000002094000.01600000.0-12000.0-8000.0-81000.0
Percentage of RestructuringAndOtherCharges100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.00.0100.0100.0100.0100.0100.0

ntgr:SegmentContributionIncome

ntgr:SegmentContributionIncome


None
Period End2020-06-282020-03-292019-06-302019-03-31
Value40272541
Percentage of SegmentContributionIncome100.0100.0100.0100.0

ntgr:SegmentContributionIncome us-gaap:StatementBusinessSegments

ntgr:ConnectedHome


None
Period End2020-06-282020-03-292019-06-302019-03-31
Value36131419
Percentage of SegmentContributionIncome89.450.055.445.7

ntgr:SMB


None
Period End2020-06-282020-03-292019-06-302019-03-31
Value4.285131122
Percentage of SegmentContributionIncome10.650.044.654.3

ntgr:SegmentContributionMargin us-gaap:StatementBusinessSegments

ntgr:SegmentContributionMargin

ntgr:ConnectedHome


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-03
Value0.1570.083-0.0040.0990.0850.113-0.030.1610.1590.144-0.010.1340.1350.1630.0040.1690.1670.194
Percentage of SegmentContributionMargin100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ntgr:SMB


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-03
Value0.0860.208-0.0080.2490.180.285-0.0240.2840.2590.2620.0020.2030.2530.270.0050.2780.2530.22
Percentage of SegmentContributionMargin54.8250.6200.0251.5211.8252.280.0176.4162.9181.9-20.0151.5187.4165.6125.0164.5151.5113.4

us-gaap:AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation


None
Period End2020-06-282020-03-292019-09-292019-06-302019-03-312018-09-302018-07-012018-04-012017-10-012017-07-022017-04-02
Value2260000.01347000.0400000.02314000.03344000.0414000.04897000.02271000.0368000.03713000.01936000.0
Percentage of AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


None
Period End2020-06-282020-03-292019-09-292019-06-302019-03-312018-09-302018-07-012018-04-012017-10-012017-07-022017-04-02
Value2260000.01347000.0400000.02314000.03344000.0414000.04897000.02271000.0368000.03713000.01936000.0
Percentage of AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AssetImpairmentCharges

us-gaap:AssetImpairmentCharges


None
Period End2020-06-282020-03-292019-06-302019-03-312018-09-302018-07-012018-04-012017-10-012017-07-022017-04-022014-12-312014-09-282013-12-312013-09-292012-12-312012-09-30
Value04530000.000001400000.00000002000000.000
Percentage of AssetImpairmentCharges0.0100.00.00.00.00.0100.00.00.00.00.00.00.0100.00.00.0

us-gaap:BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1

us-gaap:BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-30
Value311000.0-222000.0-224000.0199000.00000
Percentage of BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1100.0100.0100.0100.00.00.00.00.0

us-gaap:Depreciation

us-gaap:Depreciation


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-03
Value3.23.03.23.03.22.90.33.63.33.33.43.33.13.43.13.44.23.94.34.44.64.84.54.64.24.34.64.94.43.43.23.22.92.62.52.52.62.3
Percentage of Depreciation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeGainLossOnDerivativeNet us-gaap:HedgingDesignation

us-gaap:DerivativeGainLossOnDerivativeNet

us-gaap:Nondesignated


None
Period End2020-06-282020-03-292019-06-302019-03-31
Value-1128000.01778000.0304000.0602000.0
Percentage of DerivativeGainLossOnDerivativeNet100.0100.0100.0100.0

us-gaap:EquitySecuritiesWithoutReadilyDeterminableFairValueImpairmentLossAnnualAmount

us-gaap:EquitySecuritiesWithoutReadilyDeterminableFairValueImpairmentLossAnnualAmount


None
Period End2020-06-282020-03-29
Value30000.04500000.0
Percentage of EquitySecuritiesWithoutReadilyDeterminableFairValueImpairmentLossAnnualAmount100.0100.0

us-gaap:GainLossRelatedToLitigationSettlement

us-gaap:GainLossRelatedToLitigationSettlement


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312010-06-27
Value3000.0-25000.0-60000.0-90000.0-10000.00-10000.00-5000.0-108000.0-15000.0-53000.00-15000.0-13000.0-35000.0-10000.0-8000.0002690000.01265000.0-69000.0-68000.0-117000.0-1446000.0-305000.0-3555000.0-48000.030000.0-269000.00-151000.0-33000.0-44000.0225000.053000.00-143000.0
Percentage of GainLossRelatedToLitigationSettlement100.0100.0100.0100.0100.00.0100.00.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.00.0100.0

us-gaap:IncreaseDecreaseInAccruedIncomeTaxesPayable

us-gaap:IncreaseDecreaseInAccruedIncomeTaxesPayable


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-31
Value-0.02-0.8162.613-4.886-1.618-0.583-6.507-5.432-8.3973.397184.717-9.8685.3242.7882.564-3.4121.93-3.26511-11.7292.1260.5922.635-1.230.569-1.7633.883-4.8832.737-4.2372.539-7.5281.4824.179-2.0750.543-2.9890.742
Percentage of IncreaseDecreaseInAccruedIncomeTaxesPayable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInContractWithCustomerLiability

us-gaap:IncreaseDecreaseInContractWithCustomerLiability


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-01
Value1829000.0452000.0798000.0-4334000.0-1551000.01733000.02139000.04148000.0-497000.0-31000.0
Percentage of IncreaseDecreaseInContractWithCustomerLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInEmployeeRelatedLiabilities

us-gaap:IncreaseDecreaseInEmployeeRelatedLiabilities


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-31
Value8.585-5.8161.92-5.3334.985-13.2143.728-7.65713-2.0797.25-3.5163.503-12.5829.07-7.1919.646-6.2976.4542.825-1.319-1.681.0160.8881.151.983-0.6340.912.172-4.235-2.7771.7341.382-9.1213.7053.5144.319-8.7734.584
Percentage of IncreaseDecreaseInEmployeeRelatedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherAccruedLiabilities

us-gaap:IncreaseDecreaseInOtherAccruedLiabilities


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-31
Value-10.307-16.74528-8.079-5.79-31.3716.7451224-27.434441418-20.23319.647-15.5-18.5913416-1.052-19.86114.571-11.345-2.4226.3493.89811-6.8695.57-2.5544.507-4.079125.554-0.249-8.3188.541
Percentage of IncreaseDecreaseInOtherAccruedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-31
Value5.771-6.8024.614-7.7725.265-0.453-9.2750.529173.7250.396-0.038-2.011-3.5083.84-6.7060.718-3.7846.772-0.904-6.308-0.12-1.941-1.1263.7937.179-4.18-3.445110.671-2.545-3.7556.954-3.2732.122-6.7669.4123.1673.25
Percentage of IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InventoryWriteDown

us-gaap:InventoryWriteDown


None
Period End2020-06-282020-03-292019-06-302019-03-31
Value2200000.02403000.01100000.0945000.0
Percentage of InventoryWriteDown100.0100.0100.0100.0

us-gaap:InvestmentIncomeInterest

us-gaap:InvestmentIncomeInterest


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312010-10-032010-06-27
Value49000.0262000.0417000.0639000.0782000.0701000.0670000.01490000.01072000.0748000.0725000.0501000.0482000.0405000.0359000.0291000.0279000.0234000.0111000.065000.067000.052000.079000.068000.049000.057000.085000.071000.095000.0149000.0154000.0109000.0116000.0119000.0127000.0115000.0106000.0129000.0124000.0132000.0100000.0
Percentage of InvestmentIncomeInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LeaseCost

us-gaap:LeaseCost


None
Period End2020-06-282020-03-292019-09-292019-06-302019-03-31
Value3025000.02994000.03098000.03486000.03348000.0
Percentage of LeaseCost100.0100.0100.0100.0100.0

us-gaap:LossContingencyPatentsAllegedlyInfringedNumber us-gaap:LitigationCase

us-gaap:LossContingencyPatentsAllegedlyInfringedNumber

ntgr:ChinaPatentMattersBeijingAndHeifeiMunicipalities


None
Period End2020-04-102019-05-14
Value3.02.0
Percentage of LossContingencyPatentsAllegedlyInfringedNumber100.0100.0

us-gaap:LossContingencyPatentsAllegedlyInfringedNumber us-gaap:LitigationCase, us-gaap:SubsequentEventType

ntgr:ChinaPatentMattersBeijingAndHeifeiMunicipalities, us-gaap:SubsequentEvent


None
Period End2020-04-10
Value3.0
Percentage of LossContingencyPatentsAllegedlyInfringedNumber100.0

us-gaap:NumberOfOperatingSegments

us-gaap:NumberOfOperatingSegments


None
Period End2020-06-282020-03-29
Value02.0
Percentage of NumberOfOperatingSegments0.0100.0

us-gaap:NumberOfReportableSegments

us-gaap:NumberOfReportableSegments


None
Period End2020-06-282020-03-29
Value02.0
Percentage of NumberOfReportableSegments0.0100.0

us-gaap:OciBeforeReclassificationsBeforeTaxAttributableToParent us-gaap:StatementEquityComponents

us-gaap:OciBeforeReclassificationsBeforeTaxAttributableToParent

us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-01
Value-63000.0985000.0243000.0459000.0534000.0329000.0347000.0895000.01680000.0-1500000.0
Percentage of OciBeforeReclassificationsBeforeTaxAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-02
Value00001000.015000.056000.041000.069000.0-38000.0-74000.041000.0-27000.0-55000.0
Percentage of OciBeforeReclassificationsBeforeTaxAttributableToParent-0.00.00.00.00.24.616.14.64.12.50.00.00.00.0

us-gaap:OciBeforeReclassificationsNetOfTaxAttributableToParent

us-gaap:OciBeforeReclassificationsNetOfTaxAttributableToParent


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-02
Value-84000.0810000.0195000.0362000.0421000.0271000.0319000.0740000.01392000.0-1150000.0848000.0-2266000.0-5818000.0-509000.0
Percentage of OciBeforeReclassificationsNetOfTaxAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingLeaseCost

us-gaap:OperatingLeaseCost


None
Period End2020-06-282020-03-292019-09-292019-06-302019-03-31
Value2471000.02880000.02977000.02982000.02969000.0
Percentage of OperatingLeaseCost100.0100.0100.0100.0100.0

us-gaap:OperatingLeasePayments

us-gaap:OperatingLeasePayments


None
Period End2020-03-292019-06-302019-03-31
Value3074000.03141000.03038000.0
Percentage of OperatingLeasePayments100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax

us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-01
Value00001000.015000.056000.041000.069000.0
Percentage of OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax0.00.00.00.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax

us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-03
Value00001000.03000.013000.010000.016000.011000.0-28000.015000.0-9000.0-20000.0-27000.0-16000.017000.038000.0
Percentage of OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax0.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsTax

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsTax


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-03
Value21000.0175000.048000.097000.0114000.073000.084000.0196000.0357000.0-388000.0-1024000.0-1231000.0-1144000.0337000.0965000.0-216000.0-215000.038000.0
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossBeforeTax

us-gaap:OtherComprehensiveIncomeLossBeforeTax


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-03
Value-418000.0403000.046000.0-37000.0-1000.038000.026000.089000.0193000.0654000.04536000.063000.0-6030000.0-1752000.01912000.0197000.0557000.0-446000.012000.016000.0-70000.0-14000.0-127000.0141000.0148000.0-198000.0210000.0-189000.0-97000.0125000.0185000.0-280000.0171000.0-90000.033000.0-75000.0123000.0
Percentage of OtherComprehensiveIncomeLossBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent

us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-01
Value-418000.0403000.046000.0-37000.0-2000.023000.0-30000.048000.0124000.0692000.0
Percentage of OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-02
Value00001000.015000.056000.041000.069000.0-38000.0-74000.041000.0-27000.0-55000.0
Percentage of OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent-0.00.00.0-0.0-50.065.2-186.785.455.6-5.50.00.00.00.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-01
Value-418000.0403000.046000.0-37000.0-2000.023000.0-30000.048000.0124000.0692000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-01
Value-54000.053000.07000.0-7000.006000.0-8000.08000.015000.061000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax100.0100.0100.0100.00.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax

us-gaap:ForeignExchangeForward, us-gaap:CashFlowHedging, us-gaap:DesignatedAsHedgingInstrument


None
Period End2020-06-282020-03-292019-06-302019-03-31
Value-63000.0985000.0534000.0329000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation, us-gaap:IncomeStatementLocation

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax

us-gaap:ForeignExchangeForward, us-gaap:CashFlowHedging, us-gaap:DesignatedAsHedgingInstrument, us-gaap:CostOfSales


None
Period End2020-06-282020-03-292019-06-302019-03-31
Value1000.0-2000.0-6000.0-2000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax100.0100.0100.0100.0

us-gaap:ForeignExchangeForward, us-gaap:CashFlowHedging, us-gaap:DesignatedAsHedgingInstrument, us-gaap:GeneralAndAdministrativeExpense


None
Period End2020-06-282020-03-292019-06-302019-03-31
Value-1000.0-13000.0-12000.0-11000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax-100.0650.0200.0550.0

us-gaap:ForeignExchangeForward, us-gaap:CashFlowHedging, us-gaap:DesignatedAsHedgingInstrument, us-gaap:ResearchAndDevelopmentExpense


None
Period End2020-06-282020-03-292019-06-302019-03-31
Value7000.0-2000.0-20000.0-26000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax700.0100.0333.31300.0

us-gaap:ForeignExchangeForward, us-gaap:CashFlowHedging, us-gaap:DesignatedAsHedgingInstrument, us-gaap:Sales


None
Period End2020-06-282020-03-292019-06-302019-03-31
Value343000.0676000.0672000.0414000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax34300.0-33800.0-11200.0-20700.0

us-gaap:ForeignExchangeForward, us-gaap:CashFlowHedging, us-gaap:DesignatedAsHedgingInstrument, us-gaap:SellingAndMarketingExpense


None
Period End2020-06-282020-03-292019-06-302019-03-31
Value5000.0-77000.0-98000.0-69000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax500.03850.01633.33450.0

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-29
Value-364000.0350000.039000.0-30000.0-2000.029000.021000.071000.0162000.0582000.03911000.048000.0-5212000.0-1536000.01696000.0183000.0540000.0-484000.046000.014000.0-77000.0-18000.0-112000.0140000.0142000.0-201000.0220000.0-199000.0
Percentage of OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossTaxPortionAttributableToParent1

us-gaap:OtherComprehensiveIncomeLossTaxPortionAttributableToParent1


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-03
Value-54000.053000.07000.0-7000.01000.09000.05000.018000.031000.072000.0625000.015000.0-818000.0-216000.0216000.014000.017000.038000.0
Percentage of OtherComprehensiveIncomeLossTaxPortionAttributableToParent1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherNoncashIncomeExpense

us-gaap:OtherNoncashIncomeExpense


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-31
Value-311000.0222000.0224000.0-423000.029000.0141000.0403000.0
Percentage of OtherNoncashIncomeExpense100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherOperatingIncomeExpenseNet

us-gaap:OtherOperatingIncomeExpenseNet


None
Period End2020-06-282020-03-292019-06-302019-03-31
Value-1425000.0332000.0-1301000.0-196000.0
Percentage of OtherOperatingIncomeExpenseNet100.0100.0100.0100.0

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-31
Value2260000.01347000.0463000.0400000.02358000.03300000.0500000.0432000.04868000.02300000.0383000.0417000.03664000.01936000.0300000.0500000.03500000.0400000.0200000.0100000.02100000.0200000.0966000.0134000.01467000.033000.00
Percentage of PaymentsRelatedToTaxWithholdingForShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:PaymentsToAcquireOtherInvestments

us-gaap:PaymentsToAcquireOtherInvestments


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-03
Value6015000.0250000.00284000.005200000.01091000.00001500000.01500000.001400000.00000
Percentage of PaymentsToAcquireOtherInvestments100.0100.00.0100.00.0100.0100.00.00.00.0100.0100.00.0100.00.00.00.00.0

us-gaap:PaymentsToAcquireShortTermInvestments

us-gaap:PaymentsToAcquireShortTermInvestments


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-31
Value0.0210.1261.3350.1330.0030.146-28.117393435344522332637503060250.14424402024592529782061154451084052399614
Percentage of PaymentsToAcquireShortTermInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromSaleMaturityAndCollectionOfShorttermInvestments

us-gaap:ProceedsFromSaleMaturityAndCollectionOfShorttermInvestments


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-31
Value0.0040.1450.0040.137234735
Percentage of ProceedsFromSaleMaturityAndCollectionOfShorttermInvestments100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromStockOptionsExercised

us-gaap:ProceedsFromStockOptionsExercised


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-31
Value3.3240.4620.4451.6330.9232.0261.6572.3150.9571.9123.1032.4331.5342.4386.2737.221103.661341.6661.3633.1083.940.8781.0984.0631.8572.0850.9982.5471.9434.4261.9534.3782.4920.813205.81812
Percentage of ProceedsFromStockOptionsExercised100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromStockPlans

us-gaap:ProceedsFromStockPlans


None
Period End2020-06-282020-03-292019-06-302019-03-31
Value02478000.002303000.0
Percentage of ProceedsFromStockPlans0.0100.00.0100.0

us-gaap:ProductWarrantyAccrualPayments

us-gaap:ProductWarrantyAccrualPayments


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-03
Value2.1762.3162.3822.6132.7493.162101.091.1021.044252830282024182317151618151616171716161715141415-98.85141315
Percentage of ProductWarrantyAccrualPayments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProductWarrantyAccrualWarrantiesIssued

us-gaap:ProductWarrantyAccrualWarrantiesIssued


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-03
Value1.5281.6832.081.5582.1311.2818.9850.8570.8832.05834353426242718162622141618171314201517161716151217161412
Percentage of ProductWarrantyAccrualWarrantiesIssued100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProfessionalFees

us-gaap:ProfessionalFees


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-02
Value0.00.00.00.00.00.264-24.8937.054116.7840.00.00.00.0
Percentage of ProfessionalFees0.00.00.00.00.0100.0100.0100.0100.0100.00.00.00.00.0

us-gaap:ReclassificationFromAociCurrentPeriodBeforeTaxAttributableToParent us-gaap:StatementEquityComponents

us-gaap:ReclassificationFromAociCurrentPeriodBeforeTaxAttributableToParent

us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-01
Value355000.0582000.0197000.0496000.0536000.0306000.0377000.0847000.01556000.0-2192000.0
Percentage of ReclassificationFromAociCurrentPeriodBeforeTaxAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent

us-gaap:ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-02
Value280000.0460000.0156000.0392000.0423000.0242000.0298000.0669000.01230000.0-1732000.0-3063000.0-2314000.0-606000.01027000.0
Percentage of ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ReclassificationFromAociCurrentPeriodTax

us-gaap:ReclassificationFromAociCurrentPeriodTax


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-03
Value75000.0122000.041000.0104000.0113000.064000.079000.0178000.0326000.0-460000.0-3687000.01246000.0326000.0-553000.0-175000.0230000.0232000.00
Percentage of ReclassificationFromAociCurrentPeriodTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability


None
Period End2020-03-292019-06-302019-03-31
Value1295000.0100000.0577000.0
Percentage of RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate

us-gaap:EmployeeStock


None
Period End2020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-03
Value0.38800.44500.42600.38800.37100.31300.27600.28600.447
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate100.00.0100.00.0100.00.0100.00.0100.00.0100.00.0100.00.0100.00.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate

us-gaap:EmployeeStock


None
Period End2020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-03
Value0.015500.018300.024900.022200.018100.011200.006600.004500.0042
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate100.00.0100.00.0100.00.0100.00.0100.00.0100.00.0100.00.0100.00.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized us-gaap:PlanName

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized

ntgr:A2016IncentivePlan


None
Period End2020-05-312018-05-31
Value2000000.01700000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized100.0100.0

us-gaap:SharesPaidForTaxWithholdingForShareBasedCompensation

us-gaap:SharesPaidForTaxWithholdingForShareBasedCompensation


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-31
Value95000.054000.0-2000.00111000.089000.09000.06000.085000.038000.08000.08000.081000.038000.06000.08000.082000.09000.08000.04000.066000.07000.032000.03000.046000.01000.00
Percentage of SharesPaidForTaxWithholdingForShareBasedCompensation100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:SharesPaidForTaxWithholdingForShareBasedCompensation us-gaap:StatementEquityComponents

us-gaap:CommonStock


None
Period End2020-06-282020-03-292019-09-292019-06-302019-03-312018-09-302018-07-012018-04-012017-10-012017-07-022017-04-02
Value95000.054000.012000.079000.089000.06000.085000.038000.08000.081000.038000.0
Percentage of SharesPaidForTaxWithholdingForShareBasedCompensation100.0100.00.071.2100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShortTermLeaseCost

us-gaap:ShortTermLeaseCost


None
Period End2020-06-282020-03-292019-09-292019-06-302019-03-31
Value554000.0114000.0121000.0504000.0379000.0
Percentage of ShortTermLeaseCost100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodSharesShareBasedCompensation us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodSharesShareBasedCompensation

us-gaap:CommonStock


None
Period End2020-06-282020-03-292019-09-292019-06-302019-03-312018-09-302018-07-012018-04-012017-10-012017-07-022017-04-02
Value502000.0305000.0162000.0292000.0430000.0176000.0332000.0252000.0163000.0315000.0246000.0
Percentage of StockIssuedDuringPeriodSharesShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation


None
Period End2020-06-282020-03-292019-09-292019-06-302019-03-312018-09-302018-07-012018-04-012017-10-012017-07-022017-04-02
Value3.3242.942.9470.8824.3715.1361.0124.594.5351.5345.1
Percentage of StockIssuedDuringPeriodValueShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


None
Period End2020-06-282020-03-292019-09-292019-06-302019-03-312018-09-302018-07-012018-04-012017-10-012017-07-022017-04-02
Value3.3242.942.9460.8824.3715.1361.0124.5894.5351.5345.1
Percentage of StockIssuedDuringPeriodValueShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockRepurchasedAndRetiredDuringPeriodShares

us-gaap:StockRepurchasedAndRetiredDuringPeriodShares


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-03-302013-12-312013-09-292013-06-302012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-03
Value300000.0600000.0700000.0700000.0600000.0400000.0300000.0200000.000600000.0700000.0900000.0200000.0300000.00300000.0300000.0400000.0700000.02400000.0300000.0500000.02000000.00000016000.025000.00024000.0
Percentage of StockRepurchasedAndRetiredDuringPeriodShares100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.00.0100.0100.00.00.0100.0

us-gaap:StockRepurchasedAndRetiredDuringPeriodShares us-gaap:StatementEquityComponents

us-gaap:CommonStock


None
Period End2020-06-282020-03-292019-09-292019-06-302019-03-312018-09-302017-10-012017-07-022017-04-02
Value315000.0584000.0679000.0570000.0436000.0205000.0682000.0929000.0213000.0
Percentage of StockRepurchasedAndRetiredDuringPeriodShares105.097.397.095.0109.0102.597.4103.2106.5

us-gaap:StockRepurchasedAndRetiredDuringPeriodValue

us-gaap:StockRepurchasedAndRetiredDuringPeriodValue


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292012-07-012012-04-012011-07-032011-04-03
Value7.51522211615151526294511190.01310.01520768.30.2040.5960.0010.899
Percentage of StockRepurchasedAndRetiredDuringPeriodValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockRepurchasedAndRetiredDuringPeriodValue us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


None
Period End2020-06-282020-03-292019-09-292019-06-302019-03-312018-09-302017-10-012017-07-022017-04-02
Value7.51521161515294411
Percentage of StockRepurchasedAndRetiredDuringPeriodValue100.0100.0100.0100.0100.0100.0100.0100.0100.3

us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment

us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment


None
Period End2020-06-282020-03-292019-09-292019-06-302019-03-312018-09-302018-07-012018-04-012017-10-012017-07-022017-04-022016-10-022016-07-032016-04-032015-09-272015-06-282015-03-292014-09-282014-06-292014-03-302013-09-292013-06-302013-03-312012-09-302012-07-012012-04-012011-10-022011-07-032011-04-03
Value453000.00886000.0866000.01391000.01172000.001233000.0689000.0764000.01192000.01000000.0854000.0750000.0356000.0516000.0607000.0607000.0669000.0675000.0498000.0535000.0617000.0640000.0617000.0780000.0597000.0951000.0926000.0
Percentage of WeightedAverageNumberDilutedSharesOutstandingAdjustment100.00.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ntgr:AccruedFreightCharges

ntgr:AccruedFreightCharges


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312010-12-31
Value8.616.0995.6335.5195.1365.268108.1087.6467.79106.2325.515.0088.987.6315.9986.8825.7486.554.495.7886.8276.8736.0355.7775.797.3536.4914.6014.4575.7339.0367.4877.947.174
Percentage of AccruedFreightCharges100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ntgr:InventoryExpectedToBeReceivedFromFutureSalesReturns

ntgr:InventoryExpectedToBeReceivedFromFutureSalesReturns


None
Period End2020-06-282020-03-292019-12-312018-12-31
Value24252623
Percentage of InventoryExpectedToBeReceivedFromFutureSalesReturns100.0100.0100.0100.0

ntgr:PercentageOfCancelableOrders us-gaap:PurchaseCommitmentExcludingLongtermCommitment

ntgr:PercentageOfCancelableOrders

ntgr:ThirtyOneToFortyFiveDays


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282013-12-31
Value0.250.250.250.250.250.250.250.250.250.250.250.250.250.250.250.250.250.250.250.250.30.30.250.30.25
Percentage of PercentageOfCancelableOrders100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ntgr:ProvisionsToWriteDownExpectedReturnedInventoryToNetRealizableValue

ntgr:ProvisionsToWriteDownExpectedReturnedInventoryToNetRealizableValue


None
Period End2020-06-282020-03-292019-12-312018-12-31
Value14141414
Percentage of ProvisionsToWriteDownExpectedReturnedInventoryToNetRealizableValue100.0100.0100.0100.0

us-gaap:AccruedIncomeTaxesNoncurrent

us-gaap:AccruedIncomeTaxesNoncurrent


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032010-12-31
Value1515151318181921323231141515151514141414151415151413131312131317161918182019
Percentage of AccruedIncomeTaxesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccruedMarketingCostsCurrent

us-gaap:AccruedMarketingCostsCurrent


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312010-12-31
Value58708563737491116118959673726074555262695244455446455047444340433944444437
Percentage of AccruedMarketingCostsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312010-12-31
Value1.0791.0761.0791.0791.0791.2551.2541.2551.2551.256252118161919181819171.2551.2551.2551.2551.2551.2551.2551.2561.2561.2561.2561.2561.3171.2981.3351.481
Percentage of AllowanceForDoubtfulAccountsReceivableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AociBeforeTaxAttributableToParent us-gaap:StatementEquityComponents

us-gaap:AociBeforeTaxAttributableToParent

us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312016-12-312015-12-31
Value7000.0425000.022000.0-24000.013000.015000.0-8000.026000.0-22000.0-146000.0-838000.02230000.043000.0
Percentage of AociBeforeTaxAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312014-12-312013-12-31
Value-2000.0-2000.0-2000.0-2000.0-2000.0-3000.0-18000.0-74000.0-115000.0-184000.0-146000.0-72000.0-113000.0-86000.0-31000.040000.083000.037000.0-64000.0-8000.06000.0
Percentage of AociBeforeTaxAttributableToParent-28.6-0.5-9.18.3-15.4-20.0225.0-284.6522.7126.017.40.00.00.0-1.40.00.00.0-148.80.00.0

us-gaap:AociTaxAttributableToParent

us-gaap:AociTaxAttributableToParent


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312014-12-312013-12-31
Value-2000.052000.0-1000.0-8000.0-1000.0-2000.0-11000.0-12000.0-30000.0-61000.0-133000.0-758000.0-773000.045000.0261000.045000.031000.014000.0-24000.0-3000.02000.0
Percentage of AociTaxAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AssetsFairValueDisclosure

us-gaap:AssetsFairValueDisclosure


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312010-12-31
Value28292736555596141143141141151140138107110107107123122123120119137142143230232228230249170223
Percentage of AssetsFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312017-12-31
Value0000001000.00
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax0.00.00.00.00.00.0100.00.0

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312017-12-31
Value000001000.017000.0146000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax0.00.00.00.00.0100.0100.0100.0

us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis

us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312017-12-31
Value1.4731.4561.4750.1450.1492370124
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis us-gaap:FinancialInstrument

us-gaap:CertificatesOfDeposit


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312017-12-31
Value0.1470.130.1490.1450.1490.1510.1490.162
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis10.08.910.1100.0100.00.60.20.1

us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis us-gaap:ShortTermDebtType

us-gaap:ConvertibleDebt


None
Period End2020-06-282020-03-292019-12-312018-12-31
Value1.3261.3261.3260.0
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis90.091.189.90.0

us-gaap:AvailableForSaleSecuritiesDebtSecurities

us-gaap:AvailableForSaleSecuritiesDebtSecurities


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312017-12-31
Value1.4731.4561.4750.1450.1492370124
Percentage of AvailableForSaleSecuritiesDebtSecurities100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AvailableForSaleSecuritiesDebtSecurities us-gaap:FinancialInstrument

us-gaap:CertificatesOfDeposit


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312017-12-31
Value0.1470.130.1490.1450.1490.1510.1490.162
Percentage of AvailableForSaleSecuritiesDebtSecurities10.08.910.1100.0100.00.60.20.1

us-gaap:AvailableForSaleSecuritiesDebtSecurities us-gaap:ShortTermDebtType

us-gaap:ConvertibleDebt


None
Period End2020-06-282020-03-292019-12-312018-12-31
Value1.3261.3261.3260.0
Percentage of AvailableForSaleSecuritiesDebtSecurities90.091.189.90.0

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312016-12-31
Value252204190168214185201393227258202240
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerLiabilityNoncurrent

us-gaap:ContractWithCustomerLiabilityNoncurrent


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012018-01-01
Value2.6212.2942.0611.91.9541.8470.77920171513
Percentage of ContractWithCustomerLiabilityNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerRefundLiabilityCurrent

us-gaap:ContractWithCustomerRefundLiabilityCurrent


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312017-12-31
Value494952454242460.0
Percentage of ContractWithCustomerRefundLiabilityCurrent100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:DeferredIncomeTaxAssetsNet

us-gaap:DeferredIncomeTaxAssetsNet


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302017-12-31
Value565758575556577549
Percentage of DeferredIncomeTaxAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeFairValueOfDerivativeAsset

us-gaap:DerivativeFairValueOfDerivativeAsset


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312010-12-31
Value273000.01552000.0152000.01097000.0595000.0859000.0786000.01028000.03824000.0855000.01799000.02540000.01675000.02882000.08763000.01053000.01481000.0463000.03205000.0537000.0509000.02734000.02416000.02994000.0284000.0261000.0905000.0228000.01193000.01116000.01144000.0620000.0762000.0361000.01237000.01389000.0
Percentage of DerivativeFairValueOfDerivativeAsset100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:PrepaidExpensesAndOtherCurrentAssets, us-gaap:DesignatedAsHedgingInstrument


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292012-12-31
Value12000.0368000.043000.047000.041000.018000.02000.033000.009000.0485000.01356000.01237000.01136000.02890000.0622000.028000.002000.032000.070000.010000.00105000.030000.07000.063000.09000.02000.0
Percentage of DerivativeFairValueOfDerivativeAsset4.423.728.34.36.92.10.33.20.01.127.053.473.939.433.059.11.90.00.16.013.80.40.03.510.62.77.03.90.2

us-gaap:PrepaidExpensesAndOtherCurrentAssets, us-gaap:Nondesignated


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292012-12-31
Value261000.01184000.0109000.01050000.0554000.0841000.0784000.0995000.03824000.0846000.01314000.01184000.0438000.01746000.05873000.0431000.01453000.0463000.03203000.0505000.0439000.02724000.02416000.02889000.0254000.0254000.0842000.0219000.01142000.0
Percentage of DerivativeFairValueOfDerivativeAsset95.676.371.795.793.197.999.796.8100.098.973.046.626.160.667.040.998.1100.099.994.086.299.6100.096.589.497.393.096.199.8

us-gaap:DerivativeFairValueOfDerivativeAsset us-gaap:DerivativeInstrumentRisk

ntgr:OffsettingDerivativeAssetsAndLiabilities


None
Period End2020-06-282020-03-292019-12-31
Value300000.01600000.0200000.0
Percentage of DerivativeFairValueOfDerivativeAsset109.9103.1131.6

us-gaap:DerivativeFairValueOfDerivativeLiability

us-gaap:DerivativeFairValueOfDerivativeLiability


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312010-12-31
Value1.3360.1750.5250.2080.330.1650.3680.2090.5073.4338.192119.31.0581.7051.2850.5433.5490.4510.6782.2130.3890.4470.5491.1421.1920.3811.6130.1820.5031.6191.1040.424-0.3480.7230.789
Percentage of DerivativeFairValueOfDerivativeLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeFairValueOfDerivativeLiability us-gaap:BalanceSheetLocation, us-gaap:HedgingDesignation

us-gaap:OtherCurrentLiabilities, us-gaap:DesignatedAsHedgingInstrument


None
Period End2020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282013-12-31
Value0.0130.0320.0580.00.0250.0370.020.0490.0591.0646.2026.3650.4550.7030.2450.0190.4430.0040.0370.0710.00.0380.0290.013
Percentage of DerivativeFairValueOfDerivativeLiability7.46.127.90.015.210.19.69.71.713.052.868.443.041.219.13.512.50.95.53.20.08.55.33.4

us-gaap:OtherCurrentLiabilities, us-gaap:Nondesignated


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282013-12-31
Value1.3360.1620.4930.150.330.140.3310.1890.4583.3747.1285.5472.9350.6031.0021.040.5243.1060.4470.6412.1420.3890.4090.520.368
Percentage of DerivativeFairValueOfDerivativeLiability100.092.693.972.1100.084.889.990.490.398.387.047.231.657.058.880.996.587.599.194.596.8100.091.594.796.6

us-gaap:DerivativeNumberOfInstrumentsHeld us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship

us-gaap:DerivativeNumberOfInstrumentsHeld

us-gaap:ForeignExchangeForward, us-gaap:CashFlowHedging


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-01
Value10.010.010.010.010.010.010.010.010.010.010.010.010.010.010.010.07.06.05.05.05.05.05.05.05.05.05.05.05.05.05.05.05.05.0
Percentage of DerivativeNumberOfInstrumentsHeld100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeNumberOfInstrumentsHeld us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation

us-gaap:ForeignExchangeForward, us-gaap:Nondesignated


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-01
Value10.010.010.010.010.010.010.010.010.010.04.04.010.018.019.015.015.015.015.015.015.015.014.014.013.013.013.013.012.012.012.0
Percentage of DerivativeNumberOfInstrumentsHeld100.0100.0100.0100.0100.0100.0100.0100.0100.0100.040.040.0100.0180.0271.4250.0300.0300.0300.0300.0300.0300.0280.0280.0260.0260.0260.0260.0240.0240.0240.0

us-gaap:EmployeeRelatedLiabilitiesCurrent

us-gaap:EmployeeRelatedLiabilitiesCurrent


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032010-12-31
Value2214201823183131382527202420332431212721181921201918161716141821191726231924
Percentage of EmployeeRelatedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized us-gaap:AwardType

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized

us-gaap:EmployeeStockOption


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-29
Value5.26.87.8106.57.48.51112137.48.09.05.85.96.67.48.46.47.99.28.1111315131619
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestrictedStockUnitsRSU


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-01
Value44364148504145778072373944252224272719212214171820121415131.11.72.22.7
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized857.7542.6529.5468.9770.8555.4535.3678.1667.5547.4502.7490.0492.2446.6379.7375.8368.9325.0306.2265.8248.9179.0158.2143.2136.688.583.877.90.00.00.00.00.0

us-gaap:EquitySecuritiesWithoutReadilyDeterminableFairValueAmount

us-gaap:EquitySecuritiesWithoutReadilyDeterminableFairValueAmount


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312017-12-31
Value9432000.03867000.08147000.08147000.08086000.08086000.02900000.04500000.0
Percentage of EquitySecuritiesWithoutReadilyDeterminableFairValueAmount100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-31
Value120118116115113111109116114111109106103100969187837974706661575248443934302827252423
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:CustomerRelatedIntangibleAssets


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292012-12-31
Value52515048474644424039373533323028262523211917161412109.127.3493.301
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization44.143.643.042.541.941.240.336.735.935.134.333.532.631.931.631.130.630.029.428.727.927.126.225.123.922.520.718.611.6

us-gaap:OtherIntangibleAssets


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302011-12-31
Value9.439.2839.1378.998.848.698.54109.9019.7859.5549.3239.0918.798.4898.2137.957.6867.4227.1596.8956.6326.3686.1045.8415.5775.3135.054.7713.3923.1422.8932.401
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization7.97.87.87.87.87.87.88.68.78.88.88.78.78.78.88.99.19.29.49.69.810.010.310.611.011.512.112.813.611.311.010.710.2

us-gaap:TechnologyBasedIntangibleAssets


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292012-12-31
Value5757575757575663636262616059575552504846444139363432292722
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization48.048.649.149.750.351.051.954.755.456.257.057.858.659.359.660.060.360.861.261.762.362.963.564.265.166.067.268.677.4

us-gaap:FiniteLivedIntangibleAssetsGross

us-gaap:FiniteLivedIntangibleAssetsGross


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312010-12-312009-12-31
Value1261261261261261261261381341341341341341341341281281281281281281281281281281281281225655534844442421
Percentage of FiniteLivedIntangibleAssetsGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsGross us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:CustomerRelatedIntangibleAssets


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292012-12-31
Value5656565656565657565656565656565656565656565656565656565616
Percentage of FiniteLivedIntangibleAssetsGross44.744.744.744.744.744.744.741.142.142.142.142.142.142.142.144.144.144.144.144.144.144.144.144.10.044.144.144.129.0

us-gaap:OtherIntangibleAssets


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302011-12-31
Value10101010101010121111111111111110101010101010101010101010106.876.875.474.07
Percentage of FiniteLivedIntangibleAssetsGross8.18.18.18.18.18.18.18.78.28.28.28.28.28.28.28.28.28.28.28.28.28.28.28.20.08.28.28.28.612.212.510.29.1

us-gaap:TechnologyBasedIntangibleAssets


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292012-12-31
Value5959595959595969666666666666666161616161616161616160606032
Percentage of FiniteLivedIntangibleAssetsGross47.147.147.147.147.147.147.150.149.649.649.649.649.649.649.647.747.747.747.747.747.747.747.747.70.047.647.647.658.5

us-gaap:InventoryFinishedGoodsNetOfReserves

us-gaap:InventoryFinishedGoodsNetOfReserves


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302012-12-312012-09-302011-12-31
Value135157206230232230240328288262241243260263243211201209208167185197219202185189209199174170151159
Percentage of InventoryFinishedGoodsNetOfReserves100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InventoryRawMaterialsNetOfReserves

us-gaap:InventoryRawMaterialsNetOfReserves


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302012-12-312012-09-302011-12-31
Value14232845445.653.4272.0722.8543.9824.4655.1713.6914.0264.5966.5886.3716.1554.2922.3823.3383.4023.6253.8334.7956.5918.6766.8696.0724.4477.2954.676
Percentage of InventoryRawMaterialsNetOfReserves100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LiabilitiesFairValueDisclosure

us-gaap:LiabilitiesFairValueDisclosure


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312010-12-31
Value7.3525.886.4536.366.2836.1186.3218.192119.31.0581.7051.2850.5433.5490.4510.6782.2130.3890.4470.549-1.1421.1920.3811.6130.1820.5031.6191.1040.424-0.3480.7230.789
Percentage of LiabilitiesFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LiabilitiesFairValueDisclosure us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:FairValueInputsLevel2


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312010-12-31
Value1.3360.1750.5250.2080.330.1650.3688.192119.31.0581.7051.2850.5433.5490.4510.6782.2130.3890.4470.549-1.1421.1920.3811.6130.1820.5031.6191.1040.424-0.3480.7230.789
Percentage of LiabilitiesFairValueDisclosure18.23.08.13.35.32.75.8100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueInputsLevel3


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-31
Value6.0165.7055.9286.1525.9535.9535.9530.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of LiabilitiesFairValueDisclosure81.897.091.996.794.797.394.20.00.00.00.00.00.00.00.00.00.00.00.00.00.0-0.00.00.00.00.00.00.00.00.0-0.00.0

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

us-gaap:FairValueInputsLevel2, us-gaap:ForeignExchangeForward


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312017-12-312017-10-012017-07-022016-12-31
Value1.3360.1750.5250.2080.330.1650.3688.192119.31.705
Percentage of LiabilitiesFairValueDisclosure18.23.08.13.35.32.75.8100.0100.0100.0100.0

us-gaap:FairValueInputsLevel3, ntgr:ContingentConsideration


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-31
Value6.0165.7055.9286.1525.9535.9535.953
Percentage of LiabilitiesFairValueDisclosure81.897.091.996.794.797.394.2

us-gaap:LiabilitiesFairValueDisclosure us-gaap:FinancialInstrument

ntgr:ContingentConsideration


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-31
Value6.0165.7055.9286.1525.9535.9535.953
Percentage of LiabilitiesFairValueDisclosure81.897.091.996.794.797.394.2

us-gaap:ForeignExchangeForward


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312017-12-312017-10-012017-07-022016-12-31
Value1.3360.1750.5250.2080.330.1650.3688.192119.31.705
Percentage of LiabilitiesFairValueDisclosure18.23.08.13.35.32.75.8100.0100.0100.0100.0

us-gaap:OtherAssetsMiscellaneousNoncurrent

us-gaap:OtherAssetsMiscellaneousNoncurrent


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312011-12-312010-12-31
Value6.4036.8397.2027.4347.8826.7539.87618131112109.3259.1367.9777.157.2997.6177.8247.2787.6347.9138.0598.3648.5958.875.0344.8125.0644.454.6563.3714.214
Percentage of OtherAssetsMiscellaneousNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProductWarrantyAccrual

us-gaap:ProductWarrantyAccrual


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312011-10-022011-07-032011-04-032010-12-312009-12-31
Value9.2759.9231010111214181818756760565853504956474042444241454845464546444242444038384030
Percentage of ProductWarrantyAccrual100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProductWarrantyAccrualClassifiedCurrent

us-gaap:ProductWarrantyAccrualClassifiedCurrent


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012012-04-012011-12-312010-12-31
Value9.2759.92310101112141818187567605658535049564740424442414548454645464442424440
Percentage of ProductWarrantyAccrualClassifiedCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueRemainingPerformanceObligation

us-gaap:RevenueRemainingPerformanceObligation


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-01
Value14111942585851551319081
Percentage of RevenueRemainingPerformanceObligation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber

us-gaap:RestrictedStockUnitsRSU


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012011-12-31
Value1730000.01459000.01587000.01680000.01561000.01385000.01627000.01600000.01570000.01617000.01130000.01113000.01151000.0935000.0996000.01018000.01041000.01251000.0964000.0959000.0973000.0796000.0858000.0944000.0955000.0729000.0731000.0731000.0596000.092000.0112000.0115000.0118000.0177000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue

us-gaap:RestrictedStockUnitsRSU


None
Period End2020-06-282020-03-292019-12-312019-09-292019-06-302019-03-312018-12-312018-09-302018-07-012018-04-012017-12-312017-10-012017-07-022017-04-022016-12-312016-10-022016-07-032016-04-032015-12-312015-09-272015-06-282015-03-292014-12-312014-09-282014-06-292014-03-302013-12-312013-09-292013-06-302013-03-312012-12-312012-09-302012-07-012011-12-31
Value30.5833.0733.9533.934.9434.3334.3158.0456.9953.4443.2242.8342.7237.2536.2235.8435.533.9131.6331.5931.6231.1530.6830.9230.8929.3729.429.2729.1132.1128.3628.128.1727.86
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Line plots across dimensions of each concept


us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:ContractWithCustomerSalesChannel
(None,)
None
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:StatementBusinessSegments
(None,)
None
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:StatementGeographical
(None,)
None
us-gaap:AllocatedShareBasedCompensationExpense
us-gaap:IncomeStatementLocation
(None,)
None
us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents
(None,)
None
us-gaap:NoncurrentAssets
us-gaap:StatementGeographical
(None,)
None
us-gaap:PropertyPlantAndEquipmentGross
us-gaap:PropertyPlantAndEquipmentByType
(None,)
None
us-gaap:FiniteLivedIntangibleAssetsNet
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
(None,)
None
us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents
(None,)
None