CALX


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

Table of contents



us-gaap:CommonStockValue

us-gaap:CommonStockSharesIssued

us-gaap:CommonStockSharesOutstanding
us-gaap:StatementEquityComponents

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted

us-gaap:AllocatedShareBasedCompensationExpense
us-gaap:IncomeStatementLocation

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest

us-gaap:CostOfGoodsAndServicesSold
us-gaap:ProductOrService

us-gaap:CostOfRevenue

us-gaap:GeneralAndAdministrativeExpense

us-gaap:GrossProfit

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments

us-gaap:IncomeTaxExpenseBenefit

us-gaap:InterestIncomeExpenseNonoperatingNet

us-gaap:OperatingExpenses

us-gaap:OperatingIncomeLoss

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossNetOfTax
us-gaap:StatementEquityComponents

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:ProfitLoss
us-gaap:StatementEquityComponents

us-gaap:ResearchAndDevelopmentExpense

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax
us-gaap:ProductOrService
us-gaap:StatementGeographical

us-gaap:SellingAndMarketingExpense

us-gaap:Assets

us-gaap:Liabilities

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents

us-gaap:AssetsCurrent
us-gaap:ConsolidatedEntities, us-gaap:StatementGeographical
us-gaap:Cash

us-gaap:CashAndCashEquivalentsAtCarryingValue
us-gaap:CashAndCashEquivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:AccountsReceivableNetCurrent

us-gaap:InventoryNet

us-gaap:PrepaidExpenseAndOtherAssetsCurrent

us-gaap:PropertyPlantAndEquipmentGross
us-gaap:PropertyPlantAndEquipmentByType

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:PropertyPlantAndEquipmentNet
us-gaap:StatementGeographical

us-gaap:Goodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OtherAssetsNoncurrent

us-gaap:AccountsPayableCurrent

us-gaap:AccruedLiabilitiesCurrent
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:ContractWithCustomerLiabilityCurrent
us-gaap:DeferredRevenueArrangementType

us-gaap:LiabilitiesCurrent

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OtherAccruedLiabilitiesCurrent
us-gaap:ProductOrService
us-gaap:LongTermDebt
us-gaap:PropertyPlantAndEquipmentByType

us-gaap:OtherLiabilitiesNoncurrent
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:OperatingLeaseLiability

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue
us-gaap:StatementGeographical

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents

us-gaap:CommonStockValue

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:StockIssuedDuringPeriodValueNewIssues
us-gaap:StatementEquityComponents

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
us-gaap:StatementEquityComponents

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:IncreaseDecreaseInAccountsPayable

us-gaap:IncreaseDecreaseInAccountsReceivable

us-gaap:IncreaseDecreaseInInventories

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:ProfitLoss
us-gaap:StatementEquityComponents

us-gaap:ShareBasedCompensation
us-gaap:TitleOfIndividual, us-gaap:AwardType, us-gaap:PlanName
us-gaap:TitleOfIndividual, us-gaap:AwardType, us-gaap:PlanName, us-gaap:SubsequentEventType

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:EffectiveIncomeTaxRateContinuingOperations

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod

us-gaap:DeferredTaxLiabilities

us-gaap:UnrecognizedTaxBenefits

us-gaap:DeferredTaxAssetsValuationAllowance
us-gaap:RestructuringPlan
calx:AccruedCommonAreasMaintenanceFeesAndPropertyTaxesWriteOff
us-gaap:RestructuringPlan
calx:AssetWriteOff

calx:InterestAndOtherIncomeExpenseNonoperating

calx:PaymentsForFinancingArrangements
us-gaap:ProductOrService
calx:PaymentsToSettlePurchaseObligations
us-gaap:PropertyPlantAndEquipmentByType
us-gaap:StatementEquityComponents
calx:StockIssuedDuringPeriodSharesPerformanceRestrictedStockAwardNetofForfeitures
us-gaap:StatementEquityComponents
calx:StockIssuedDuringPeriodValuePerformanceRestrictedStockAwardNetofForfeitures

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

us-gaap:ContractWithCustomerLiabilityRevenueRecognized
us-gaap:Range, us-gaap:CreditFacility, us-gaap:LineOfCreditFacility, us-gaap:SubsequentEventType, us-gaap:VariableRate
us-gaap:DebtInstrumentBasisSpreadOnVariableRate1

us-gaap:Depreciation

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:GainLossOnDispositionOfAssets

us-gaap:IncreaseDecreaseInAccruedLiabilities

us-gaap:IncreaseDecreaseInDeferredRevenue

us-gaap:IncreaseDecreaseInOtherNoncurrentLiabilities

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements

us-gaap:OperatingLeaseExpense

us-gaap:OperatingLeasePayments

us-gaap:PaymentsForRestructuring
us-gaap:RestructuringCostAndReserve

us-gaap:PaymentsOfDebtIssuanceCosts

us-gaap:PaymentsToAcquireAvailableForSaleSecuritiesDebt

us-gaap:ProceedsFromIssuanceOfCommonStock

us-gaap:ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlans

us-gaap:ProceedsFromLinesOfCredit

us-gaap:ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities

us-gaap:ProceedsFromStockOptionsExercised

us-gaap:ProductWarrantyAccrualPayments

us-gaap:ProductWarrantyAccrualWarrantiesIssued

us-gaap:RepaymentsOfLinesOfCredit

us-gaap:RestructuringCharges
us-gaap:RestructuringCostAndReserve
us-gaap:RestructuringPlan
us-gaap:StatementGeographical, us-gaap:RestructuringCostAndReserve

us-gaap:RestructuringReserveSettledWithoutCash2
us-gaap:RestructuringCostAndReserve
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized
us-gaap:PlanName

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
us-gaap:TitleOfIndividual, us-gaap:AwardType, us-gaap:PlanName
us-gaap:PlanName
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriod
us-gaap:PlanName
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesPurchasedForAward

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice
us-gaap:AwardType
us-gaap:StockIssuedDuringPeriodSharesEmployeeStockOwnershipPlan
us-gaap:AwardType, us-gaap:PlanName
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodSharesNewIssues
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodSharesShareBasedCompensation

us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised
us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodValueEmployeeStockPurchasePlan
us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation
us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised
us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents
us-gaap:StockRepurchasedAndRetiredDuringPeriodValue

calx:AccruedCustomerRebates

calx:AccruedEquipmentFinancingArrangementsCurrent

calx:AccruedExcessAndObsoleteInventoryAtContractManufacturer

calx:AccruedFreight

calx:CashCashEquivalentsAndMarketableSecurities

calx:CashCashEquivalentsRestrictedCashAndMarketableSecurities

calx:ContractWithCustomerAssetExpectedToBeBilledRemainderOfYearPercent

calx:ContractwithCustomerAssetPriorPeriodNotRecognized

calx:EmployeeServiceSharebasedCompensationNonvestedAwardsCompensationCostNotyetRecognizedToBeRecognizedInYearThree

calx:EmployeeServiceSharebasedCompensationNonvestedAwardsCompensationCostNotyetRecognizedToBeRecognizedInYearTwo

calx:EmployeeServiceSharebasedCompensationNonvestedAwardsCompensationCostNotyetRecognizedToBeRecognizedNextTwelveMonth

calx:LesseeOperatingLeaseLiabilityToBePaidAfterYearFour

calx:OperationsLiabilityCurrent

calx:OtherAssetsCapitalizedCloudImplementationCosts

calx:ProductReturnReserveCurrent

calx:RevenueShareObligationCurrent
us-gaap:PlanName
calx:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrantAdditionalShares

calx:SharebasedCompensationArrangementbySharebasedPaymentAwardOptionsOutstandingIntrinsicValueAmountPerShare

calx:TaxesPayableCurrentExcludingAccruedIncomeTaxes

us-gaap:AccountsReceivableGrossCurrent

us-gaap:AccruedProfessionalFeesCurrent

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:AssetsFairValueDisclosure
us-gaap:FairValueByMeasurementFrequency
us-gaap:FinancialInstrument
us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
us-gaap:FinancialInstrument
us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis

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

us-gaap:CapitalizedContractCostGross
us-gaap:CashAndCashEquivalents, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:CashAndCashEquivalentsFairValueDisclosure
us-gaap:CashAndCashEquivalents, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:CommercialPaper
us-gaap:FairValueByMeasurementFrequency

us-gaap:CommonStockCapitalSharesReservedForFutureIssuance
us-gaap:AwardType
us-gaap:AwardType, us-gaap:PlanName

us-gaap:ContractWithCustomerAssetNet

us-gaap:ContractWithCustomerLiability

us-gaap:ContractWithCustomerLiabilityNoncurrent
us-gaap:DeferredRevenueArrangementType
us-gaap:CreditFacility, us-gaap:LineOfCreditFacility
us-gaap:DebtInstrumentInterestRateEffectivePercentage
us-gaap:CreditFacility, us-gaap:LineOfCreditFacility, us-gaap:SubsequentEventType
us-gaap:ProductOrService
us-gaap:DebtWeightedAverageInterestRate
us-gaap:PropertyPlantAndEquipmentByType

us-gaap:DeferredTaxAssetsDeferredIncome

us-gaap:DeferredTaxAssetsGoodwillAndIntangibleAssets

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsOperatingLossCarryforwards

us-gaap:DeferredTaxAssetsOther

us-gaap:DeferredTaxAssetsPropertyPlantAndEquipment

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities

us-gaap:EmployeeRelatedLiabilitiesCurrent
us-gaap:AwardType
us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
us-gaap:AwardType
us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions
us-gaap:AwardType, us-gaap:PlanName

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions
us-gaap:PlanName
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
us-gaap:IntangibleAssetsCurrent

us-gaap:InventoryFinishedGoodsNetOfReserves

us-gaap:InventoryRawMaterialsNetOfReserves

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent
us-gaap:IncomeTaxAuthority
us-gaap:OperatingLossCarryforwards

us-gaap:OtherAssetsMiscellaneousNoncurrent
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
us-gaap:OtherLiabilities

us-gaap:ProductWarrantyAccrual

us-gaap:ProductWarrantyAccrualClassifiedCurrent

us-gaap:PurchaseCommitmentRemainingMinimumAmountCommitted
us-gaap:ProductOrService
us-gaap:PurchaseObligation

us-gaap:RestrictedCashCurrent

us-gaap:RestructuringReserve
us-gaap:RestructuringCostAndReserve

us-gaap:RestructuringReserveCurrent

us-gaap:RevenueRemainingPerformanceObligation

us-gaap:RevenueRemainingPerformanceObligationPercentage
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
us-gaap:PlanName
us-gaap:PlanName
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1

us-gaap:TaxCreditCarryforwardAmount
us-gaap:IncomeTaxAuthority
us-gaap:ValuationAllowancesAndReservesType
us-gaap:ValuationAllowancesAndReservesBalance

Plots across concepts


IncomeStatement
Other Comprehensive Income Loss Net Of Tax
Expenses
Income Tax Expense Benefit
Balance Sheet
Intangible Assets Net Excluding Goodwill
Assets
Operating Lease Right Of Use Asset
Current Assets
Prepaid Expense And Other Assets Current
NonCurrent Assets
Intangible Assets Net Excluding Goodwill
PropertyPlantAndEquipmentNet
Property Plant And Equipment Net
Liabilities
Operating Lease Liability
Current Liabilities
Operating Lease Liability Current
Stockholders Equity
Retained Earnings Accumulated Deficit
CashFlow
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInOperatingActivities
Increase Decrease In Inventories
NetCashProvidedByUsedInInvestingActivities
Net Cash Provided By Used In Investing Activities
Shares
Weighted Average Number Of Shares Outstanding Basic
OperatingLeaseLiability
Operating Lease Liability Current
LesseeOperatingLeaseLiabilityPaymentsDue
Lessee Operating Lease Liability Payments Remainder Of Fiscal Year
InventoryNet
Inventory Raw Materials Net Of Reserves
AccountsReceivable
Allowance For Doubtful Accounts Receivable Current

Tables

  2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252011-03-262010-12-312010-09-252010-06-26
us-gaap:CommonStockValue ██▇▇█▇▇▇▇▆▆▆▆▅▅▅▅▄▄▄▄▄▄▃▃▃▃▃▃▃▂▂▂▂▂▂▂▁▁▁▁1.581.5721.5531.5441.5871.5491.5451.5211.521.4881.4821.4621.461.4261.4211.3931.391.3741.3681.3531.3511.3281.3261.3161.3131.2951.2911.281.2731.2581.2561.2441.2381.2221.2221.211.2051.1961.1951.1821.167NA0.968NANA
us-gaap:CommonStockSharesIssued ██▇▇█▇▇▇▇▆▆▆▆▅▅▅▅▄▄▄▄▄▄▃▃▃▃▃▃▃▂▂▂▂▂▂▂▁▁▁▁63.262.85162.12261.7763.47361.95861.77760.82460.77359.49459.28558.45558.38257.04756.83955.71255.60554.95634854.72213554.1184154.05996653.11059353.04978152.62447552.52489351.8028951.62825751.12266650.91044650.32155150.22495249.77348549.53642848.90302248.89892448.41791548.19975547.86542547.825247.2946.703NA38.712NANA
us-gaap:CommonStockSharesOutstanding ███▇▆▅▅▅▅▄▄▄▄▃▃▃▃▂▂▂▂▁▂▃▃▃▃▃▃▃▂▂▂▂▂▂▂▁▁▁▁63.262.85162.12261.7758.14356.62856.44855.49455.44354.16453.95553.12553.05251.71751.50950.38250.27549.62653149.39231848.78859348.73014947.78077649.50925151.17764952.08989351.8028951.62825751.12266650.91044650.32155150.22495249.77348549.53642848.90302248.89892448.41791548.19975547.86542547.825247.2946.703NA38.712NANA
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding █▁67.63467.019NA63.44957.26156.54NA55.46654.62454.048NA53.828NANANA50.336NANANA49.309NANANA52.016NANANA51.048NA50.271NA51.142NA48.911NA48.353NANANANANANANANANA
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic █▁63.04262.554NA60.30757.26156.54NA55.46654.62454.048NA53.082NANANA50.336NANANA48.773NANANA51.756NANANA51.048NA50.271NA49.694NA48.911NA48.353NANANANANANANANANA
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount █▁1.0960.415NA0.1696.9967.133NA6.6117.1916.221NA2.5135.7516.87NA5.7415.2256.145NA3.9515.7335.5NA5.2446.2735.625NA5.2825.2624.452NA2.1735.5264.971NA4.462NANANANANANANANANA
us-gaap:EarningsPerShareBasic ▇▇█▇▂▁▃▂0.320.330.390.34-0.07-0.120.010000000000000009-0.06NANA-0.109999999999999990.02NANA-0.25-0.35-0.38-0.67-0.230.01-0.12-0.22-0.190.02-0.11-0.23-0.06-0.08-0.08-0.2-0.130.01-0.1-0.13NA-0.15NANANANANANANANANA
us-gaap:EarningsPerShareDiluted ▇▇█▇▂▁▃▂0.30.310.370.32-0.07-0.120.010000000000000009-0.06NANA-0.109999999999999990.02NANA-0.25-0.35-0.38-0.67-0.230.01-0.12-0.22-0.190.02-0.11-0.23-0.06-0.08-0.08-0.2-0.130.01-0.1-0.13NA-0.15NANANANANANANANANA
  2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252011-03-262010-12-312010-09-252010-06-26
 COGS Ratio us-gaap:ProductOrService calx:SystemsProduct█▇█▆▄▂▄▃▂▁▃▃▃▂▄▃159.553153.302160.908142.294110.84194.509111.978106.0692.83382.36105.077104.992102.56393.291116.495106.442NANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 COGS Ratio us-gaap:ProductOrService us-gaap:TechnologyService▂▂▂▂▂▁▂▂▂▁▃▃▂▁██9.1178.7729.1188.2148.1827.1738.2138.4257.4716.9910.4399.7079.1396.11221.40422.385NANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252011-03-262010-12-312010-09-252010-06-26
 TTM Greenblatt ROC _ _▇███▅▄▅▅▄▄▄▅▅▄▃▃▃▁▄▅▄▄▄▅▄▄▅▅▅▄▄▅▄▄▄▄▄▄▄▄▃▂20.52920.80224.77421.75-3.338-6.341.494-2.851-4.931-9.113-5.1550.676-2.926-11.109-12.763-17.263-18.714-32.816-12.2350.735-5.881-10.738-9.7350.877-5.765-11.887-2.853-3.744-3.89-9.897-8.056-0.012-4.845-5.54-7.748-7.077-6.83-7.369-5.156-6.894-17.537-22.734NANANA
  2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252011-03-262010-12-312010-09-252010-06-26
us-gaap:AllocatedShareBasedCompensationExpense █▆▄▃▂▂▁▁▁▂6.2235.1714.23.5743.2422.9842.7242.7622.5693.145NANANANANANANANANA1.7NANA3.2122.594.3413.6623.8983.8134.4043.9024.9564.9715.2754.7194.4764.3074.3394.3154.3663.7965.3248.1178.0937.4947.181
us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest ████▅▄▅▅▄▄▄▅▅▄▃▃▃▁▄▅▄▄▄▅▄▄▅▅▅▄▄▅▄▄▄▄▄▄▄▄▃20.50220.5824.60420.948-4.209-7.1960.783-3.809-5.268-9.501-5.590.466-3.3-11.457-12.691-17.733-18.853-33.268-11.9130.54-5.808-10.682-9.710.756-5.733-11.921-3.047-3.868-3.993-10.016-6.4420.579-5.123-6.221-6.575-7.116-7.126-7.474-5.201-6.894-17.637NANANANA
us-gaap:CostOfGoodsAndServicesSold ▇▆▇▆▄▃▅▅▃▃▅▄▄▄██▇▇▇▅▄▃▃▄▂▂▄▄▃▂▃▃▃▂▃▂▂▂▃▂▃▁▃▂▁79.05175.83281.01174.53362.61856.05865.47964.28355.63651.00763.89261.86660.83657.34487.34284.19482.883.14178.866.8356.60551.2356.37357.09648.75246.4658.10458.651.57546.80651.86854.13249.84647.34552.30645.70743.61943.47152.48949.00254.89939.30851.67945.16841.855
us-gaap:CostOfRevenue ▇▆▇▆▄▃▅▄▃▂▄▄▄▃██▇▇▇▅▃▃▃▄▂▂▄▄▃▂▃▃▂▂▃▂▁▁▃▂▅▂▃▂▁79.05175.83281.01174.53362.61856.05865.47964.28355.63651.00763.89261.86660.83657.34487.34284.19482.883.14179.61467.64357.41952.89358.46259.18450.8448.54860.19260.68953.66348.89453.95656.22151.93449.43354.39447.79545.70744.74654.53151.80867.79651.08153.03946.52843.215
us-gaap:GeneralAndAdministrativeExpense █▇▆▆▆▅▅▄▄▄▅▅▅▄▅▅▅▅▄▄▆▇▅▄▄▅▄▃▃▃▃▄▃▃▂▂▂▂▁▁▂▄▄▃▃13.66413.02511.81410.76811.19310.6699.5979.5669.1658.78710.55310.48110.3719.0959.71410.2039.70110.2578.6528.61511.64112.6849.7269.149.43610.1528.8147.6257.6817.2517.6528.4787.6848.1316.4326.7736.1296.785.5525.4756.6679.3088.4837.3447.423
us-gaap:GrossProfit ███▇▅▄▄▄▃▃▄▄▄▃▄▃▃▂▄▄▄▄▄▄▄▃▄▃▃▃▃▄▃▃▃▂▂▂▃▂▂▁▃▂▂89.61986.24289.01575.97556.40545.62454.71250.20244.66838.34351.62452.83350.86642.05950.55744.63343.32334.37752.18653.54450.00645.48246.53753.11348.28942.4951.44145.0844.34236.92640.04747.40742.50541.11537.0333.50633.22133.81937.05431.84730.16320.38938.65628.96428.438
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments ████▅▄▅▅▄▄▄▅▅▄▃▃▃▁▄▅▄▄▄▅▄▄▅▅▅▄▄▅▄▄▄▄▄▄▄▄▃▂▅▄▅20.66520.76524.27620.687-4.064-6.6150.799-2.769-4.95-9.612-5.4010.894-2.635-11.626-12.698-17.628-18.811-32.652-11.590.845-5.702-10.608-9.3891.107-5.677-11.839-2.735-3.733-3.848-9.917-6.474-0.03-4.929-5.846-6.696-7.096-6.95-7.426-5.166-6.896-17.532-22.732-1.092-5.33-2.959
us-gaap:IncomeTaxExpenseBenefit ▅▅▅▅▅▆▆█▅▅▅▅▅▅▅▅▅█▄▅▅▅▅▅▅▅▆▅▅▅▄▁▅▆▄▄▅▅▄▄▅▄▂▄▆0.2070.150.1740.1490.1480.3290.3020.610.0950.1550.1770.0850.1580.110.1680.2250.1770.673-0.1070.2090.1240.1210.1570.1850.1020.0910.2530.1150.1030.11-0.021-0.5740.2240.357-0.1220.0440.1410.0950.0480.0380.1140.024-0.3540.0210.243
us-gaap:InterestIncomeExpenseNonoperatingNet █▁-0.119-0.125NA-0.356-0.617-0.29NA-0.271-0.142-0.108NA-0.142-0.165-0.223NA-0.060.0540.044NA0.080.097NANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OperatingExpenses █▇▇▅▆▅▅▅▄▄▆▅▅▅▇▇▇█▇▅▆▆▆▅▅▅▅▄▄▄▄▄▄▄▄▃▃▃▃▂▄▃▃▂▁69.0965.4464.24154.22559.74351.96453.21853.05349.59947.45656.77952.15753.79253.16863.3261.89662.03767.19364.42152.80955.88756.2256.27252.23654.05454.37754.29448.82448.23246.82348.10347.41947.3546.65544.77840.58340.05141.18842.2138.74147.743.12339.7634.37330.878
us-gaap:OperatingIncomeLoss ▇███▅▄▅▅▄▄▄▅▅▄▃▃▃▁▄▅▄▄▄▅▄▄▅▅▅▄▄▅▄▄▄▄▄▄▄▄▃▂▅▄▅20.52920.80224.77421.75-3.338-6.341.494-2.851-4.931-9.113-5.1550.676-2.926-11.109-12.763-17.263-18.714-32.816-12.2350.735-5.881-10.738-9.7350.877-5.765-11.887-2.853-3.744-3.89-9.897-8.056-0.012-4.845-5.54-7.748-7.077-6.83-7.369-5.156-6.894-17.537-22.734-1.104-5.409-2.44
us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax ▅▄█▇▅▃▇▂▃▆▄▂▁▆▆▅▅▅▂▄▄▄▄▃▅▄▄▄▄▅▅▅▅▄▅▅▄▅▅▅▅0.044-0.0350.5020.410.003-0.2520.286-0.43-0.2230.266-0.012-0.343-0.5070.2790.1720.1160.1320.061-0.421-0.087-0.023-0.018-0.062-0.1960.049-0.03-0.039-0.007-0.0170.0110.0110.0350.03-0.018-0.0010.024-0.0350.0470.0120.0420.021NANANANA
us-gaap:OtherComprehensiveIncomeLossNetOfTax ▅▄█▇▅▃▇▂▃▆▄▂▁▆▆▅▅▅▂▄▅▅▃▃▅▅▄▄▄▅▅▅▅▄▅▅▄▅▅▅▅0.044-0.0350.5020.410.003-0.2520.286-0.43-0.2230.266-0.012-0.343-0.5070.2790.1750.120.1350.057-0.43-0.0960.0180.047-0.164-0.1660.0460.009-0.059-0.02-0.0420.0110.0110.0350.03-0.018-0.0010.024-0.0350.0470.0130.040.009NANANANA
us-gaap:OtherNonoperatingIncomeExpense ▆▅▄▁▄▅▃▇▅▃▄▇▇▃▆▃▄▅█▅▅▅▆▆▅▅▅▅▅▅▅▅▅▃▅▅▄▅▅▅▅▅▅▅▅0.2550.088-0.176-0.707-0.1090.015-0.2580.3530.123-0.391-0.1440.360.456-0.2940.313-0.305-0.1510.120.6150.0810.1330.0830.2980.1960.0290.0480.1070.0180.070.0330.0010.004-0.043-0.2790.0670.019-0.067-0.0220.0280.0350.0240.005-0.0250.004-0.002
us-gaap:ProfitLoss ████▅▄▅▅▄▄▄▅▅▄▃▃▃▁▄▅▄▄▄▅▄▄▅▅▅▄▄▅▄▄▄▄▄▄▄▄▃▂▅▄▅20.45820.61524.10220.538-4.212-6.9440.497-3.379-5.045-9.767-5.5780.809-2.793-11.736-12.866-17.853-18.988-33.325-11.4830.636-5.826-10.729-9.5460.922-5.779-11.93-2.988-3.848-3.951-10.027-6.4530.544-5.153-6.203-6.574-7.14-7.091-7.521-5.214-6.934-17.646-22.756-0.738-5.351-3.202
us-gaap:ResearchAndDevelopmentExpense ▅▅▄▃▄▄▃▄▄▃▄▄▄▅▆███▇▆▅▄▄▄▄▄▄▃▃▃▃▃▃▃▂▂▂▂▂▂▃▂▂▁▁25.71624.36423.28820.37820.92120.67120.26420.8920.719.3321.21521.11122.10125.53628.1532.63332.9533.80830.94428.11925.03322.77322.82922.1222.85121.91421.20719.9319.54419.6319.31619.77720.03520.17117.14416.16516.47316.96617.38516.71718.58415.03916.1814.29913.086
us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax █▇█▇▄▃▄▄▃▂▄▄▄▃▆▅▅▄▅▅▄▃▃▄▃▂▄▃▃▂▃▃▃▂▂▂▂▂▂▂▃▁▂▁▁168.67162.074170.026150.508119.023101.682120.191114.485100.30489.35115.516114.699111.70299.403137.899128.827126.123117.518131.8121.187107.42598.375104.999112.29799.12991.038111.633105.76998.00585.8294.003103.62894.43990.54891.42481.30178.92878.56591.58583.65597.95971.4791.69575.49271.653
us-gaap:SellingAndMarketingExpense █▇█▆▅▅▆▅▄▄▆▅▅▄▆▄▄▅▆▅▄▄▅▄▄▄▅▄▄▄▄▃▃▃▄▃▃▃▃▂▂▂▂▁▁29.7128.05129.13923.07921.34320.62423.35720.12319.73419.33925.28220.72220.52719.90123.47518.44818.42922.42924.82520.57519.21319.06221.16518.42419.21519.75921.72118.71718.45517.3918.58316.61217.07915.80117.24915.09314.89714.8916.7212.59314.17212.06613.10710.40810.184
  2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252011-03-262010-12-312010-09-252010-06-26
  2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252011-03-262010-12-312010-09-252010-06-26
us-gaap:Assets █▇▆▄▂▃▂▂▂▂▂▂▁▁▂▂▃▃▃▃▂▂▃▃▃▃▄▄▄▄▄▅▅▄▄▄▄▄▄▄▄507.835468.135427.352385.333321.314324.054316.823316.511311.248318.152317.08301.025282.47270.912295.07319.642329.324349.759355.475323.938304.38300.417323.886344.128346.998347.183370.221360.023362.917361.385383.599392.136396.035385.031377.897367.603367.832359.837359.539361.108367.992NA257.556NANA
us-gaap:Liabilities ▇▆▆▅▇█▇█▇█▇▇▆▅▆█▇█▆▃▂▁▁▁▁▁▂▂▂▂▃▄▄▄▃▂▂▁▁▁▁162.197153.42147.027137.802162.146173.139162.795170.361164.042172.311165.146156.951141.31132.873150.107169.259164.091167.602142.511105.41490.83385.63988.10187.56885.48982.79497.6391.48293.48394.029109.676117.827125.87117.417108.82297.44294.05585.50782.12284.76787.2NA62.253NANA
us-gaap:LiabilitiesAndStockholdersEquity █▇▆▄▂▃▂▂▂▂▂▂▁▁▂▂▃▃▃▃▂▂▃▃▃▃▄▄▄▄▄▅▅▄▄▄▄▄▄▄▄507.835468.135427.352385.333321.314324.054316.823316.511311.248318.152317.08301.025282.47270.912295.07319.642329.324349.759355.475323.938304.38300.417323.886344.128346.998347.183370.221360.023362.917361.385383.599392.136396.035385.031377.897367.603367.832359.837359.539361.108367.992NA257.556NANA
us-gaap:StockholdersEquity █▇▆▅▂▁▂▁▁▁▁▁▁▁▁▁▂▂▄▄▄▄▄▅▅▅▆▅▅▅▆▆▅▅▅▅▆▆▆▆▆345.638314.715280.325247.531159.168150.915154.028146.15147.206145.841151.934144.074141.16138.039144.963150.383165.233182.157212.964218.524213.547214.778235.785256.56261.509264.389272.591268.541269.434267.356273.923274.309270.165267.614269.075270.161273.777274.33277.417276.341280.792NA195.303NANA
  2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252011-03-262010-12-312010-09-252010-06-26
us-gaap:AssetsCurrent █▇▅▄▂▂▁▁▁▂▂▂▁▁▂▃▃▄▄▃▂▂▂▃▃▃▃▃▃▃▃▃▃▃▂▂▂▁▁▁▁350.598309.769266.89224.843158.069155.715143.817141.86148.21157.084174.757161.611148.757137.986162.455185.693194.379214.624219.322189.182169.042163.271182.8197.119194.893189.953207.487192.523193.49187.37204.466207.375206.701190.488176.55165.332159.989148.209144.992140.795141.229NA177.274NANA
 us-gaap:Cash us-gaap:ConsolidatedEntities,us-gaap:StatementGeographical srt:Subsidiaries,calx:BrazilChinaAndUnitedKingdomNANA3.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:CashAndCashEquivalentsAtCarryingValue ▅█▇▆▄▄▄▃▃▄▄▅▄▃▃▆▃▂▄▂▂▁▂▃▃▂▄▃▂▇█▇▆▄▄▅▅▄▃▂▁▂▆▃▂58.5985.85480.80763.82650.55246.18946.82937.55834.94244.06749.64653.03348.17542.62839.77564.18437.29426.31850.35931.76426.04521.36523.62636.19439.67229.61848.82939.39932.54375.16982.74779.12469.37948.05946.99557.42253.08549.56238.93830.24918.6629.54766.30435.14124.721
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents ▄█▇▅▃▃▃▁▁▂▃▃▃▂▂58.5985.85480.80764.45451.1846.81747.45738.18635.5744.69550.27453.03348.17542.62839.775NANANA50.359NANANA23.626NANANANANANANANANANANANANANANANANANANANANANA
us-gaap:AccountsReceivableNetCurrent █▇▆▆▅▆▃▄▅▄▆▆▆▅█▃▄▆▄▅▄▃▃▃▃▂▁▃▃▃▃▄▆▇▅▅▅▃▃▃▅80.16474.40869.41969.13158.5967.13646.50948.53260.18655.20267.02667.67169.53555.74680.39244.22753.39264.18851.33657.25649.11843.80447.15548.18841.98539.030.74442.78147.3344.13443.5254.42162.72670.71759.51956.39256.39148.1447.94347.90157.94NA43.377NANA
us-gaap:InventoryNet █▇▅▄▃▂▃▄▄▄▅▂▁▂▂▃▃▄▄▃▄▄▄▄▄▄▄▄▄▄▅▃▃▃▄▂▃▃▄▄▃77.13672.21152.26841.61636.65930.53940.15346.35545.3647.22650.15130.26719.98827.06131.52936.32139.57246.53844.54540.1940.76141.12747.66743.76940.7140.63746.75343.84545.88845.0651.07139.37637.40239.23243.28230.17533.24337.15744.60444.15238.489NA24.557NANA
us-gaap:PrepaidExpenseAndOtherAssetsCurrent █▆▅▄▅▅▄▄▃▄▃▄▅▅▃▅▅▅▄▇▃▄▄▃▅▅▆▂▂▁▂▂▃▂▂▁▁▁▁▂17.44913.12211.4149.65611.6411.2239.6988.7877.0949.9617.30610.6411.05912.5518.36411.50411.11211.91110.57115.78.1399.9729.478.31111.45710.77912.9366.4695.0384.8695.7576.6568.1266.0635.6774.3834.5973.954.4296.493NANA3.245NANA
  2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252011-03-262010-12-312010-09-252010-06-26
us-gaap:PropertyPlantAndEquipmentGross ▁▁▁▃▃▃▃▄▅▅▅█▆▅▅▇▇▆▆▅▄▄▄▄▄▄▅▄▄▃▃▄▄▄▄▃▃65.42665.63966.23971.11271.39573.52972.87178.05879.95780.279.3891.91884.30482.06480.8789.88188.16685.78783.61580.24177.79476.52175.15876.9577.02777.58879.52377.86975.39273.49272.90376.21976.38975.9177.4171.86372.011NA66.148NANANANANANA
us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment ▁▁▁▂▂▃▂▂▂▃▃▇▇▇▆█▇▇▆▆▅▅▄▄▄▄▅▄▄▄▄▄▄▄▄▃▃45.76345.53645.85850.94450.42953.12751.34449.67150.85253.82854.43570.66668.74767.25665.18972.88470.20767.64365.63164.22462.14660.00658.00958.46658.23758.18559.37957.7158.10356.3755.4357.8457.84256.89756.32754.48253.816NA50.018NANANANANANA
us-gaap:PropertyPlantAndEquipmentNet ▃▄▄▄▄▄▄██▇▆▄▁▁▁▂▃▃▃▂▁▂▂▃▃▃▄▄▂▂▂▃▃▃▄▂▃▂▂▂▃19.66320.10320.38120.16820.96620.40221.52728.38729.10526.37224.94521.25215.55714.80815.68116.99717.95918.14417.98416.01715.64816.51517.14918.48418.7919.40320.14420.15917.28917.12217.47318.37918.54719.01321.08317.38118.19517.18216.1317.22218.206NA11.815NANA
us-gaap:Goodwill ▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄116.175116.175116.175116.175116.175116.175116.175116.175116.175116.175116.175116.175116.175116.175116.175116.175116.175116.175116.175116.175116.175116.175116.175116.175116.175116.175116.175116.175116.175116.175116.175116.175116.175116.175116.175116.175116.175116.175116.175116.175116.175NA65.576NANA
us-gaap:IntangibleAssetsNetExcludingGoodwill ▁▂▃▄▅▆▇█8.2018.8599.51710.17510.83311.49112.14812.807NANA0.0NANANANANA0.00.00.8131.6272.443.2546.61811.25915.89920.53925.17929.8234.4639.143.7448.3853.02157.66162.30166.94171.58176.22180.04884.64390.001NA0.515NANA
us-gaap:OperatingLeaseRightOfUseAsset ▆▆▆▅▆▇█▇██▁10.98311.01511.74110.68411.07915.21215.86415.80116.42217.0620.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherAssetsNoncurrent ▅▅▅▆▆▇█▆▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▂▂▂10.41611.07312.16513.46315.02516.5519.4414.2881.3361.4591.2031.9871.9811.9430.7590.7770.8110.8161.1810.9371.0751.2021.1441.0911.2411.1131.2361.3461.5031.6181.7451.8271.5911.6941.7881.7741.8922.052.1942.2732.381NA2.376NANA
  2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252011-03-262010-12-312010-09-252010-06-26
us-gaap:AccountsPayableCurrent ▇▅▂▂▁▃▁▄▇▇█▆▅▃▇▆▅▄▄▃▂▁▃▃▃▂▄▂▂▁▄▃▃▂▃▂▃▂▂▁▁34.97129.22413.11516.55710.20420.46410.78924.15137.52234.32640.20932.79226.11217.83635.97729.57627.8424.5223.82719.3413.80211.14419.60316.78418.53812.79223.62913.25812.8510.88723.16318.07316.71413.67316.80416.43620.24714.13314.2511.94210.932NA10.268NANA
us-gaap:AccruedLiabilitiesCurrent ▅▅▇▅▆▅▅▅▃▅▅▅▃▄▄▅▇█▇▄▃▃▂▂▂▂▂▂▁▁▁▁▂▂▂▁▁▂▂▂▂58.62756.03168.73660.50664.68457.97557.54657.0647.65755.34357.86957.05247.44548.78349.27959.40172.66277.01569.71549.01943.9343.80135.51238.2836.54539.44739.44337.57934.68934.5732.07535.03436.66436.67336.17634.13733.70635.92136.21439.4539.629NA25.987NANA
us-gaap:ContractWithCustomerLiabilityCurrent ██▄▁▂▅▂▃▃▁▁▂23.95124.12719.18915.59116.35919.91217.15818.10118.52815.56415.616.813NANA13.076NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LiabilitiesCurrent ▆▅▄▄▆▆▅▆▆▇█▇▆▅▆███▆▃▂▁▁▁▁▁▂▂▂▂▃▄▅▄▄▃▂▂▁▂▂117.549109.382101.0492.654117.247128.351115.493123.612128.707135.233143.678136.657120.762111.295128.332147.205142.349145.951121.39684.58570.09964.74767.23966.47864.21561.27575.79470.93273.88574.4790.198.309107.14198.97592.29581.24778.10569.73967.24770.8473.642NA50.317NANA
us-gaap:OperatingLeaseLiabilityCurrent ███▇▇▇▇▇▇▆▁3.0053.0192.9942.7562.7182.7282.6632.5182.3812.1960.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherAccruedLiabilitiesCurrent ▃▄▄▂▄▃▄█▅▅▆▇▃▃▅▆▆▅▁▂▂▂▂▂▂▂▃▄▃▃▃▄▃▃▄▃▃4.0564.6134.7373.3134.7563.3754.7099.4235.9156.0966.9077.9764.3343.7295.6556.7826.685.8311.7152.9552.9953.1333.2972.9963.012.5123.7145.2293.6953.8813.5614.6784.3284.1754.6973.6913.901NA3.386NANANANANANA
  2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252011-03-262010-12-312010-09-252010-06-26
 us-gaap:LongTermDebt us-gaap:ProductOrService calx:ConsultingServicesNANANA1.61.91.82.11.41.11.3NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:LongTermDebt us-gaap:PropertyPlantAndEquipmentByType calx:ResearchAndDevelopmentEquipmentNANANA1.72.12.52.93.43.84.2NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherLiabilitiesNoncurrent ▆▆▇▇▇▇██▂▂▃▂▂▁▁▁▁▁▁▁▁▁▁▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁▂▁11.42111.54213.13713.22813.73213.4914.62514.7492.4983.1343.9722.1862.0510.8661.130.8810.6380.7750.8780.9791.0851.1961.2931.71.9032.0912.4431.7430.9581.091.1451.3211.3941.5250.7450.8961.0141.1981.5281.6621.588NA0.951NANA
us-gaap:OperatingLeaseLiabilityNoncurrent ▆▆▇▇▇▇▇▇██▁11.9212.16712.94612.35612.97513.64214.33714.40715.04515.6920.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo █▅▃▁4.0533.9153.8123.682NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree ▇▄█▁3.8553.7253.9173.597NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour ▃▁█▃3.3423.2183.7273.388NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive NANA3.22NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive NANA0.042NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252011-03-262010-12-312010-09-252010-06-26
us-gaap:StockholdersEquity █▇▆▅▂▁▂▁▁▁▁▁▁▁▁▁▂▂▄▄▄▄▄▅▅▅▆▅▅▅▆▆▅▅▅▅▆▆▆▆▆345.638314.715280.325247.531159.168150.915154.028146.15147.206145.841151.934144.074141.16138.039144.963150.383165.233182.157212.964218.524213.547214.778235.785256.56261.509264.389272.591268.541269.434267.356273.923274.309270.165267.614269.075270.161273.777274.33277.417276.341280.792NA195.303NANA
us-gaap:CommonStockValue ██▇▇█▇▇▇▇▆▆▆▆▅▅▅▅▄▄▄▄▄▄▃▃▃▃▃▃▃▂▂▂▂▂▂▂▁▁▁▁1.581.5721.5531.5441.5871.5491.5451.5211.521.4881.4821.4621.461.4261.4211.3931.391.3741.3681.3531.3511.3281.3261.3161.3131.2951.2911.281.2731.2581.2561.2441.2381.2221.2221.211.2051.1961.1951.1821.167NA0.968NANA
us-gaap:AdditionalPaidInCapitalCommonStock ██▇▇▆▆▆▆▅▅▅▅▅▅▄▄▄▄▄▄▄▄▄▃▃▃▃▃▃▃▂▂▂▂▂▂▂▁▁▁▁972.259961.846948.055939.874912.402899.978895.899888.828886.076879.475876.073862.642860.196853.809851.054843.811840.931839.018836.563830.225825.79821.236818.754813.776811.737805.525801.81794.724791.756785.7782.253776.209772.65764.992760.232754.755751.26744.695740.309734.045731.617NA605.939NANA
us-gaap:RetainedEarningsAccumulatedDeficit ▃▃▂▂▁▁▁▁▁▂▂▂▂▂▂▃▃▄▄▅▅▅▅▅▅▆▆▆▆▆▆▇▇▇▇▇▇▇███-628.019-648.477-669.092-693.194-713.732-709.52-702.576-703.073-699.694-694.649-684.882-679.304-680.113-677.32-667.357-654.491-636.638-617.65-584.325-572.842-573.478-567.652-556.923-547.377-548.299-542.52-530.59-527.602-523.754-519.803-509.776-503.323-503.867-498.714-492.511-485.937-478.797-471.706-464.185-458.971-452.037NA-411.635NANA
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax ▆▆▆▃▁▁▂▁▃▄▃▃▅█▆▅▅▄▄▆▆▆▆▇█▇▇███████████▇▇▇-0.182-0.226-0.191-0.693-1.103-1.106-0.854-1.14-0.71-0.487-0.753-0.74-0.3970.11-0.169-0.344-0.464-0.599-0.656-0.226-0.13-0.148-0.195-0.0310.1350.0890.080.1390.1590.2010.190.1790.1440.1140.1320.1330.1090.1450.0980.0850.045NA0.031NANA
us-gaap:StockIssuedDuringPeriodValueNewIssues NANA0.060.063NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:StockIssuedDuringPeriodValueNewIssues us-gaap:StatementEquityComponents us-gaap:AdditionalPaidInCapitalNANA0.059.981NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:StockIssuedDuringPeriodValueNewIssues us-gaap:StatementEquityComponents us-gaap:CommonStockNANA0.00.082NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue ▅▄▃▂▂▁▁▁▁▂█▁▁▁6.2235.1714.163.5743.2412.9842.7052.7622.5693.1459.6732.4992.5442.757NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252011-03-262010-12-312010-09-252010-06-26
us-gaap:NetCashProvidedByUsedInOperatingActivities ▇▆█▇▅▅▅▅▄▅▅▆▅▄▁▄▅▂▇▅▅▅▄▅▅▃▇▆▅▄▅▆▇▅▅▅▅▆▅▆▅▅▅▆23.4599.89830.47317.0012.6861.2490.627.285-2.878-0.373-1.667.8983.145-5.823-34.147-7.1912.02-23.45419.159-0.1280.1195.269-4.1495.4795.226-11.89723.53315.0584.71-5.2264.01113.60720.822.382.8616.714.5913.5175.857.813-1.7682.6940.7998.577NA
us-gaap:NetCashProvidedByUsedInInvestingActivities ▁▄▄▂▅▅▅▅▅▅▅▅▅▆▅▅▆▅▅▅▅▅▅▅▅▄▄▄▁▅▅▅▅▅▄▅▅▅▅▅▅▂█▅-54.739-13.466-15.198-41.123-2.751-1.729-0.969-2.846-4.499-5.039-4.865-2.606-1.088.4755.364.2549.6920.428-2.7236.2143.0255.5676.093-0.3716.239-7.296-17.222-7.322-48.992-1.908-1.512-2.21-1.939-1.326-14.3-1.583-3.284-3.0120.9165.087-2.807-39.60540.1521.825NA
us-gaap:NetCashProvidedByUsedInFinancingActivities ▄▄▃█▄▃▄▃▃▃▃▃▃▃▄▇▃▃▃▃▃▁▁▂▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▂▃▂▃3.9868.6390.61437.0274.4260.089.356-1.445-1.55-0.393.775-0.1633.8770.0034.21729.701-0.848-1.082.434-0.241.609-13.046-14.414-8.295-1.490.0583.198-0.8381.667-0.4521.086-1.7082.3980.0421.013-0.8072.2350.0721.911-1.353-6.3460.154-9.7880.018NA
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect ▁▆██▆▅▇▆▄▄▅▆▆▆-27.2645.04716.35313.2744.363-0.649.2712.616-9.125-5.579-2.7594.8585.5472.853NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252011-03-262010-12-312010-09-252010-06-26
us-gaap:IncreaseDecreaseInAccountsPayable ▆█▄▆▃▇▂▂▅▃▇▆▆▁▆▅▅▅▆▆▅▃▅▄▆▂▇▅▅▂▆▅▅▄▅▄▆▅▅▅▄▃▅▆5.76216.156-3.4266.287-10.1439.472-13.393-13.3713.673-6.3499.6925.2197.556-17.8716.2161.8123.4550.2764.5925.5032.6-8.4592.82-1.755.745-10.83610.3710.4091.963-12.2765.091.3593.041-3.1310.368-3.8116.114-0.1172.3081.01-5.068-6.0681.4834.476NA
us-gaap:IncreaseDecreaseInAccountsReceivable ▅▄▄▅▃▆▄▃▄▃▄▄▅▁█▃▃▅▃▅▄▃▄▅▄▅▂▃▄▄▃▃▃▅▄▄▅▄▄▃▄▃▅▄5.7564.9890.28810.54-8.54520.627-2.023-11.6544.983-11.823-0.645-1.86513.789-25.13736.165-9.165-10.79612.852-5.9198.1415.314-3.351-1.0326.2032.9848.256-12.037-4.5483.1950.614-10.901-8.305-7.99111.1984.5620.0018.2510.1970.042-10.0391.887-4.17710.496-2.659NA
us-gaap:IncreaseDecreaseInInventories ▅█▆▅▅▁▂▄▃▃█▆▂▃▂▃▂▄▄▃▃▂▄▄▃▂▄▃▄▂▆▄▃▃▄▃▃▂▄▅▁▂▃▃4.92519.94310.6524.9586.12-9.614-6.2030.996-1.866-2.92519.88410.279-7.073-2.451-4.792-3.251-6.9661.9934.355-0.571-0.366-6.543.8983.0590.073-6.1152.907-2.0430.828-6.01110.0441.974-1.83-4.053.121-3.068-3.914-7.4470.4525.663-10.891-4.406-0.363-0.023NA
us-gaap:NetCashProvidedByUsedInOperatingActivities ▇▆█▇▅▅▅▅▄▅▅▆▅▄▁▄▅▂▇▅▅▅▄▅▅▃▇▆▅▄▅▆▇▅▅▅▅▆▅▆▅▅▅▆23.4599.89830.47317.0012.6861.2490.627.285-2.878-0.373-1.667.8983.145-5.823-34.147-7.1912.02-23.45419.159-0.1280.1195.269-4.1495.4795.226-11.89723.53315.0584.71-5.2264.01113.60720.822.382.8616.714.5913.5175.857.813-1.7682.6940.7998.577NA
us-gaap:ProfitLoss ████▅▄▅▅▄▄▄▅▅▄▃▃▃▁▄▅▄▄▄▅▄▄▅▅▅▄▄▅▄▄▄▄▄▄▄▄▃▂▅▄▅20.45820.61524.10220.538-4.212-6.9440.497-3.379-5.045-9.767-5.5780.809-2.793-11.736-12.866-17.853-18.988-33.325-11.4830.636-5.826-10.729-9.5460.922-5.779-11.93-2.988-3.848-3.951-10.027-6.4530.544-5.153-6.203-6.574-7.14-7.091-7.521-5.214-6.934-17.646-22.756-0.738-5.351-3.202
us-gaap:ShareBasedCompensation ▅▄▃▂▂▁▁▁▁▂█▁▁▁▂▁▁▂▂▃▁▁▂▁▃▂▂▂▃▂▃▃▄▃▃▃▃▃▃▂▄▆▆▆6.2235.1714.163.5753.2412.9842.7052.7622.5693.1459.6732.4992.5442.7573.0542.9962.7783.543.9194.6772.9682.7213.2122.594.3413.6623.8983.8134.4043.9024.9564.9715.2754.7194.4764.3074.3394.3154.3663.7965.3248.1178.0937.494NA
  2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252011-03-262010-12-312010-09-252010-06-26
us-gaap:NetCashProvidedByUsedInInvestingActivities ▁▄▄▂▅▅▅▅▅▅▅▅▅▆▅▅▆▅▅▅▅▅▅▅▅▄▄▄▁▅▅▅▅▅▄▅▅▅▅▅▅▂█▅-54.739-13.466-15.198-41.123-2.751-1.729-0.969-2.846-4.499-5.039-4.865-2.606-1.088.4755.364.2549.6920.428-2.7236.2143.0255.5676.093-0.3716.239-7.296-17.222-7.322-48.992-1.908-1.512-2.21-1.939-1.326-14.3-1.583-3.284-3.0120.9165.087-2.807-39.60540.1521.825NA
us-gaap:PaymentsToAcquirePropertyPlantAndEquipment ▂▃▃▁▄▂▁▄▇██▄▁▃▁▃▄▃▇▃▂▂▂▃▃▂▄█▃▃▂▃▃▂▃▂▅▄▁▂▄▂▂▁1.6542.2742.2021.1372.7511.7290.9692.8464.4995.0394.8652.6061.081.8751.242.0712.6092.1064.4752.2861.6251.4531.3352.3251.8761.7422.485.1532.421.9081.5122.211.9391.3262.31.5833.2843.0121.0841.7632.7861.7221.6911.017NA
  2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252011-03-262010-12-312010-09-252010-06-26
us-gaap:NetCashProvidedByUsedInFinancingActivities ▄▄▃█▄▃▄▃▃▃▃▃▃▃▄▇▃▃▃▃▃▁▁▂▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▂▃▂▃3.9868.6390.61437.0274.4260.089.356-1.445-1.55-0.393.775-0.1633.8770.0034.21729.701-0.848-1.082.434-0.241.609-13.046-14.414-8.295-1.490.0583.198-0.8381.667-0.4521.086-1.7082.3980.0421.013-0.8072.2350.0721.911-1.353-6.3460.154-9.7880.018NA
  2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252011-03-262010-12-312010-09-252010-06-26

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252010-12-31
Value1580000.01572000.01553000.01544000.01587000.01549000.01545000.01521000.01520000.01488000.01482000.01462000.01460000.01426000.01421000.01393000.01390000.01374000.01368000.01353000.01351000.01328000.01326000.01316000.01313000.01295000.01291000.01280000.01273000.01258000.01256000.01244000.01238000.01222000.01222000.01210000.01205000.01196000.01195000.01182000.01167000.0968000.0
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.30.30.40.40.50.50.50.50.50.50.50.50.50.50.50.40.40.40.40.40.40.40.40.40.40.40.30.40.40.30.30.30.30.30.30.30.30.30.30.30.30.4

Common Stock Shares Issued

us-gaap:CommonStockSharesIssued

us-gaap:CommonStockSharesIssued


Common
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252010-12-31
Value636262616361616060595958585756555554545454535352525151515050504949484848484747474638
Percentage of CommonStockSharesIssued100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Common Stock Shares Outstanding

us-gaap:CommonStockSharesOutstanding

us-gaap:CommonStockSharesOutstanding


Common
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252010-12-31
Value636262615856565555545353535151505049494848474951525151515050504949484848484747474638
Percentage of CommonStockSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CommonStockSharesOutstanding us-gaap:StatementEquityComponents

us-gaap:CommonStock


Common
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value636262615856565555545353535151494951504847384.087
Percentage of CommonStockSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding


Weighted
Period End2021-07-032021-04-032020-09-262020-06-272020-03-282019-09-282019-06-292019-03-302018-09-292017-09-302016-09-242015-09-262014-09-272014-03-292013-09-282013-03-302012-09-29
Value6767635756555454535049525150514848
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic


Weighted
Period End2021-07-032021-04-032020-09-262020-06-272020-03-282019-09-282019-06-292019-03-302018-09-292017-09-302016-09-242015-09-262014-09-272014-03-292013-09-282013-03-302012-09-29
Value6362605756555454535048515150494848
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount


Antidilutive
Period End2021-07-032021-04-032020-09-262020-06-272020-03-282019-09-282019-06-292019-03-302018-09-292018-06-302018-03-312017-09-302017-07-012017-04-012016-09-242016-06-252016-03-262015-09-262015-06-272015-03-282014-09-272014-06-282014-03-292013-09-282013-06-292013-03-302012-09-29
Value1096000.0415000.0169000.06996000.07133000.06611000.07191000.06221000.02513000.05751000.06870000.05741000.05225000.06145000.03951000.05733000.05500000.05244000.06273000.05625000.05282000.05262000.04452000.02173000.05526000.04971000.04462000.0
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareBasic


Earnings
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282018-12-312018-09-292017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-09-29
Value0.320.330.390.34-0.07-0.120.01-0.06-0.110.02-0.25-0.35-0.38-0.67-0.230.01-0.12-0.22-0.190.02-0.11-0.23-0.06-0.08-0.08-0.2-0.130.01-0.1-0.13-0.15
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareDiluted


Earnings
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282018-12-312018-09-292017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-09-29
Value0.30.310.370.32-0.07-0.120.01-0.06-0.110.02-0.25-0.35-0.38-0.67-0.230.01-0.12-0.22-0.190.02-0.11-0.23-0.06-0.08-0.08-0.2-0.130.01-0.1-0.13-0.15
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Allocated Share Based Compensation Expense

us-gaap:AllocatedShareBasedCompensationExpense

us-gaap:AllocatedShareBasedCompensationExpense


Allocated
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302016-09-242015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252011-03-262010-12-312010-09-252010-06-26
Value6.2235.1714.23.5743.2422.9842.7242.7622.5693.1451.73.2122.594.3413.6623.8983.8134.4043.9024.9564.9715.2754.7194.4764.3074.3394.3154.3663.7965.3248.1178.0937.4947.181
Percentage of AllocatedShareBasedCompensationExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax3.73.22.52.42.72.92.32.42.63.51.43.12.34.44.03.53.64.54.55.34.85.65.24.95.35.55.54.84.55.411.48.89.910.0

us-gaap:AllocatedShareBasedCompensationExpense us-gaap:IncomeStatementLocation

calx:CostOfRevenueProducts


Allocated
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-30
Value0.1860.1620.1830.1590.1260.1070.0990.130.1230.155
Percentage of AllocatedShareBasedCompensationExpense3.03.14.44.43.93.63.64.74.84.9
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax0.10.10.10.10.10.10.10.10.10.2
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax calx:CostOfRevenueProducts0.00.00.00.00.00.00.00.00.00.0

calx:CostOfRevenueServices


Allocated
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-26
Value0.1570.150.1420.1030.090.1150.1040.0930.0930.0990.1060.0890.090.0770.0760.0690.0750.0560.0610.0540.0550.037
Percentage of AllocatedShareBasedCompensationExpense2.52.93.42.92.83.93.83.43.63.10.00.00.00.00.00.00.00.00.03.20.00.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax0.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.00.00.00.10.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax calx:CostOfRevenueServices0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:GeneralAndAdministrativeExpense


Allocated
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-29
Value2.5131.8291.1641.040.9260.7960.7480.7420.6660.8012.3640.6570.7140.7350.7960.7590.8310.9311.0621.2690.8460.7250.9710.7750.9910.850.8741.0841.2821.01.9082.0352.1341.9031.7141.682
Percentage of AllocatedShareBasedCompensationExpense40.435.427.729.128.626.727.526.925.925.50.00.00.00.00.00.00.00.00.074.60.00.030.229.922.823.222.428.429.125.638.540.940.540.338.339.1
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax1.51.10.70.70.80.80.60.60.70.92.00.60.60.70.60.60.70.80.81.00.80.70.90.71.00.90.81.01.31.22.02.02.32.11.92.1
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:GeneralAndAdministrativeExpense0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ResearchAndDevelopmentExpense


Allocated
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-29
Value1.6441.5831.3921.2371.0981.010.9911.0330.8731.0163.3720.80.8140.9831.2061.2151.1221.3261.4061.5731.0991.0471.1380.9641.4831.2121.3631.2071.3061.181.2311.1791.31.1861.0981.017
Percentage of AllocatedShareBasedCompensationExpense26.430.633.134.633.933.836.437.434.032.30.00.00.00.00.00.00.00.00.092.50.00.035.437.234.233.135.031.729.730.224.823.724.625.124.523.6
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax1.01.00.80.80.91.00.80.90.91.12.90.70.71.00.90.90.91.11.11.31.01.11.10.91.51.31.21.11.31.41.31.11.41.31.21.3
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ResearchAndDevelopmentExpense0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:SellingAndMarketingExpense


Allocated
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-29
Value1.7231.4471.2791.0351.0020.9560.7630.7640.8141.0743.3220.830.7850.850.8520.8160.6541.1111.2631.6610.840.8220.9430.6881.6561.4251.4551.3161.4621.3681.4391.3951.4641.2791.321.263
Percentage of AllocatedShareBasedCompensationExpense27.728.030.529.030.932.028.027.731.734.10.00.00.00.00.00.00.00.00.097.70.00.029.426.638.138.937.334.533.235.129.028.127.827.129.529.3
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax1.00.90.80.70.80.90.60.70.81.22.90.70.70.90.60.60.50.91.01.40.80.80.90.61.71.61.31.21.51.61.51.31.61.41.41.6
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:SellingAndMarketingExpense0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest


Comprehensive
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-25
Value20202420-4.209-7.1960.783-3.809-5.268-9.501-5.590.466-3.3-11.457-12.691-17.733-18.853-33.268-11.9130.54-5.808-10.682-9.710.756-5.733-11.921-3.047-3.868-3.993-10.016-6.4420.579-5.123-6.221-6.575-7.116-7.126-7.474-5.201-6.894-17.637
Percentage of ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax12.212.714.513.9-3.5-7.10.7-3.3-5.3-10.6-4.80.4-3.0-11.5-9.2-13.8-14.9-28.3-9.00.4-5.4-10.9-9.20.7-5.8-13.1-2.7-3.7-4.1-11.7-6.90.6-5.4-6.9-7.2-8.8-9.0-9.5-5.7-8.2-18.0

Cost Of Goods And Services Sold

us-gaap:CostOfGoodsAndServicesSold

us-gaap:CostOfGoodsAndServicesSold


Cost
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252011-03-262010-12-312010-09-252010-06-26
Value797581746256656455516361605787848283786656515657484658585146515449475245434352495439514541
Percentage of CostOfGoodsAndServicesSold100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax46.946.847.649.552.655.154.556.155.557.155.353.954.557.763.365.465.770.759.855.152.752.153.750.849.251.052.055.452.654.555.252.252.852.357.256.255.355.357.358.656.055.056.459.858.4

us-gaap:CostOfGoodsAndServicesSold us-gaap:ProductOrService

calx:SystemsProduct


Cost
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-30
Value72697568565059574944565454516455
Percentage of CostOfGoodsAndServicesSold91.991.993.092.490.690.590.590.089.187.487.987.989.490.074.465.9
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax43.143.044.345.847.749.949.350.549.449.948.647.448.751.947.143.1
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax calx:SystemsProduct45.545.40.048.451.253.70.054.653.454.20.051.853.055.30.052.1

us-gaap:TechnologyService


Cost
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-30
Value6.3786.1695.6915.6445.8975.356.196.4256.0756.4067.7137.5126.4735.7112228
Percentage of CostOfGoodsAndServicesSold8.18.17.07.69.49.59.510.010.912.612.112.110.610.025.634.1
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax3.83.83.33.75.05.35.25.66.17.26.76.55.85.716.222.3
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:TechnologyService70.070.30.068.772.174.60.076.381.391.60.077.470.893.40.0128.2

Cost Of Revenue

us-gaap:CostOfRevenue

us-gaap:CostOfRevenue


Cost
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252011-03-262010-12-312010-09-252010-06-26
Value797581746256656455516361605787848283796757525859504860605348535651495447454454516751534643
Percentage of CostOfRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax46.946.847.649.552.655.154.556.155.557.155.353.954.557.763.365.465.770.760.455.853.553.855.752.751.353.353.957.454.857.057.454.355.054.659.558.857.957.059.561.969.271.557.861.660.3

General And Administrative Expense

us-gaap:GeneralAndAdministrativeExpense

us-gaap:GeneralAndAdministrativeExpense


General
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252011-03-262010-12-312010-09-252010-06-26
Value1313111011109.5979.5669.1658.7871010109.0959.714109.701108.6528.61511129.7269.149.436108.8147.6257.6817.2517.6528.4787.6848.1316.4326.7736.1296.785.5525.4756.6679.3088.4837.3447.423
Percentage of GeneralAndAdministrativeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax8.18.06.97.29.410.58.08.49.19.89.19.19.39.17.07.97.78.76.67.110.812.99.38.19.511.27.97.27.88.48.18.28.19.07.08.37.88.66.16.56.813.09.39.710.4

Gross Profit

us-gaap:GrossProfit

us-gaap:GrossProfit


Gross
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252011-03-262010-12-312010-09-252010-06-26
Value898689755645545044385152504250444334525350454653484251454436404742413733333337313020382828
Percentage of GrossProfit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax53.153.252.450.547.444.945.543.944.542.944.746.145.542.336.734.634.329.339.644.246.546.244.347.348.746.746.142.645.243.042.645.745.045.440.541.242.143.040.538.130.828.542.238.439.7

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

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments


Income
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252011-03-262010-12-312010-09-252010-06-26
Value20202420-4.064-6.6150.799-2.769-4.95-9.612-5.4010.894-2.635-11.626-12.698-17.628-18.811-32.652-11.590.845-5.702-10.608-9.3891.107-5.677-11.839-2.735-3.733-3.848-9.917-6.474-0.03-4.929-5.846-6.696-7.096-6.95-7.426-5.166-6.896-17.532-22.732-1.092-5.33-2.959
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax12.312.814.313.7-3.4-6.50.7-2.4-4.9-10.8-4.70.8-2.4-11.7-9.2-13.7-14.9-27.8-8.80.7-5.3-10.8-8.91.0-5.7-13.0-2.4-3.5-3.9-11.6-6.9-0.0-5.2-6.5-7.3-8.7-8.8-9.5-5.6-8.2-17.9-31.8-1.2-7.1-4.1

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxExpenseBenefit


Income
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252011-03-262010-12-312010-09-252010-06-26
Value207000.0150000.0174000.0149000.0148000.0329000.0302000.0610000.095000.0155000.0177000.085000.0158000.0110000.0168000.0225000.0177000.0673000.0-107000.0209000.0124000.0121000.0157000.0185000.0102000.091000.0253000.0115000.0103000.0110000.0-21000.0-574000.0224000.0357000.0-122000.044000.0141000.095000.048000.038000.0114000.024000.0-354000.021000.0243000.0
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax0.10.10.10.10.10.30.30.50.10.20.20.10.10.10.10.20.10.6-0.10.20.10.10.10.20.10.10.20.10.10.1-0.0-0.60.20.4-0.10.10.20.10.10.00.10.0-0.40.00.3

Interest Income Expense Nonoperating Net

us-gaap:InterestIncomeExpenseNonoperatingNet

us-gaap:InterestIncomeExpenseNonoperatingNet


Interest
Period End2021-07-032021-04-032020-09-262020-06-272020-03-282019-09-282019-06-292019-03-302018-09-292018-06-302018-03-312017-09-302017-07-012017-04-012016-09-242016-06-25
Value-119000.0-125000.0-356000.0-617000.0-290000.0-271000.0-142000.0-108000.0-142000.0-165000.0-223000.0-60000.054000.044000.080000.097000.0
Percentage of InterestIncomeExpenseNonoperatingNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax-0.1-0.1-0.2-0.5-0.3-0.2-0.1-0.1-0.1-0.1-0.2-0.00.00.00.10.1

Operating Expenses

us-gaap:OperatingExpenses

us-gaap:OperatingExpenses


Operating
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252011-03-262010-12-312010-09-252010-06-26
Value696564545951535349475652535363616267645255565652545454484846484747464440404142384743393430
Percentage of OperatingExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax41.040.437.836.050.251.144.346.349.453.149.245.548.253.545.948.049.257.248.943.652.057.153.646.554.559.748.646.249.254.651.245.850.151.549.049.950.752.446.146.348.760.343.445.543.1

Operating Income Loss

us-gaap:OperatingIncomeLoss

us-gaap:OperatingIncomeLoss


Operating
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252011-03-262010-12-312010-09-252010-06-26
Value20202421-3.338-6.341.494-2.851-4.931-9.113-5.1550.676-2.926-11.109-12.763-17.263-18.714-32.816-12.2350.735-5.881-10.738-9.7350.877-5.765-11.887-2.853-3.744-3.89-9.897-8.056-0.012-4.845-5.54-7.748-7.077-6.83-7.369-5.156-6.894-17.537-22.734-1.104-5.409-2.44
Percentage of OperatingIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax12.212.814.614.5-2.8-6.21.2-2.5-4.9-10.2-4.50.6-2.6-11.2-9.3-13.4-14.8-27.9-9.30.6-5.5-10.9-9.30.8-5.8-13.1-2.6-3.5-4.0-11.5-8.6-0.0-5.1-6.1-8.5-8.7-8.7-9.4-5.6-8.2-17.9-31.8-1.2-7.2-3.4

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

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax


Other
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-25
Value44000.0-35000.0502000.0410000.03000.0-252000.0286000.0-430000.0-223000.0266000.0-12000.0-343000.0-507000.0279000.0172000.0116000.0132000.061000.0-421000.0-87000.0-23000.0-18000.0-62000.0-196000.049000.0-30000.0-39000.0-7000.0-17000.011000.011000.035000.030000.0-18000.0-1000.024000.0-35000.047000.012000.042000.021000.0
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax0.0-0.00.30.30.0-0.20.2-0.4-0.20.3-0.0-0.3-0.50.30.10.10.10.1-0.3-0.1-0.0-0.0-0.1-0.20.0-0.0-0.0-0.0-0.00.00.00.00.0-0.0-0.00.0-0.00.10.00.10.0

Other Comprehensive Income Loss Net Of Tax

us-gaap:OtherComprehensiveIncomeLossNetOfTax

us-gaap:OtherComprehensiveIncomeLossNetOfTax


Other
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-25
Value44000.0-35000.0502000.0410000.03000.0-252000.0286000.0-430000.0-223000.0266000.0-12000.0-343000.0-507000.0279000.0175000.0120000.0135000.057000.0-430000.0-96000.018000.047000.0-164000.0-166000.046000.09000.0-59000.0-20000.0-42000.011000.011000.035000.030000.0-18000.0-1000.024000.0-35000.047000.013000.040000.09000.0
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax0.0-0.00.30.30.0-0.20.2-0.4-0.20.3-0.0-0.3-0.50.30.10.10.10.0-0.3-0.10.00.0-0.2-0.10.00.0-0.1-0.0-0.00.00.00.00.0-0.0-0.00.0-0.00.10.00.00.0

us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-31
Value44000.0-35000.0502000.0410000.03000.0-252000.0286000.0-430000.0-223000.0266000.0-13000.0-343000.0-507000.0279000.0
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0108.3100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax0.0-0.00.30.30.0-0.20.2-0.4-0.20.3-0.0-0.3-0.50.3
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Other Nonoperating Income Expense

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:OtherNonoperatingIncomeExpense


Other
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252011-03-262010-12-312010-09-252010-06-26
Value255000.088000.0-176000.0-707000.0-109000.015000.0-258000.0353000.0123000.0-391000.0-144000.0360000.0456000.0-294000.0313000.0-305000.0-151000.0120000.0615000.081000.0133000.083000.0298000.0196000.029000.048000.0107000.018000.070000.033000.01000.04000.0-43000.0-279000.067000.019000.0-67000.0-22000.028000.035000.024000.05000.0-25000.04000.0-2000.0
Percentage of OtherNonoperatingIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax0.20.1-0.1-0.5-0.10.0-0.20.30.1-0.4-0.10.30.4-0.30.2-0.2-0.10.10.50.10.10.10.30.20.00.10.10.00.10.00.00.0-0.0-0.30.10.0-0.1-0.00.00.00.00.0-0.00.0-0.0

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252011-03-262010-12-312010-09-252010-06-26
Value20202420-4.212-6.9440.497-3.379-5.045-9.767-5.5780.809-2.793-11.736-12.866-17.853-18.988-33.325-11.4830.636-5.826-10.729-9.5460.922-5.779-11.93-2.988-3.848-3.951-10.027-6.4530.544-5.153-6.203-6.574-7.14-7.091-7.521-5.214-6.934-17.646-22.756-0.738-5.351-3.202
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax12.112.714.213.6-3.5-6.80.4-3.0-5.0-10.9-4.80.7-2.5-11.8-9.3-13.9-15.1-28.4-8.70.5-5.4-10.9-9.10.8-5.8-13.1-2.7-3.6-4.0-11.7-6.90.5-5.5-6.9-7.2-8.8-9.0-9.6-5.7-8.3-18.0-31.8-0.8-7.1-4.5

us-gaap:ProfitLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Profit
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-31
Value20202420-4.212-6.9440.497-3.379-5.045-9.767-5.5780.809-2.793-11.736
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax12.112.714.213.6-3.5-6.80.4-3.0-5.0-10.9-4.80.7-2.5-11.8
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Research And Development Expense

us-gaap:ResearchAndDevelopmentExpense

us-gaap:ResearchAndDevelopmentExpense


Research
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252011-03-262010-12-312010-09-252010-06-26
Value252423202020202020192121222528323233302825222222222121191919191920201716161617161815161413
Percentage of ResearchAndDevelopmentExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax15.215.013.713.517.620.316.918.220.621.618.418.419.825.720.425.326.128.823.523.223.323.121.719.723.124.119.018.819.922.920.519.121.222.318.819.920.921.619.020.019.021.017.618.918.3

Revenue From Contract With Customer Including Assessed Tax

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax


Revenue
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252011-03-262010-12-312010-09-252010-06-26
Value168162170150119101120114100891151141119913712812611713112110798104112999111110598859410394909181787891839771917571
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ProductOrService

calx:SystemsProduct


Revenue
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-30
Value15915316014211094111106928210510410293116106
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax94.694.694.694.593.192.993.292.692.692.291.091.591.893.984.582.6
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax94.694.694.694.593.192.993.292.692.692.291.091.591.893.984.582.6
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax calx:SystemsProduct100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TechnologyService


Revenue
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-30
Value9.1178.7729.1188.2148.1827.1738.2138.4257.4716.99109.7079.1396.1122122
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax5.45.45.45.56.97.16.87.47.47.89.08.58.26.115.517.4
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax5.45.45.45.56.97.16.87.47.47.89.08.58.26.115.517.4
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:TechnologyService100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:StatementGeographical

calx:Caribbean


Revenue
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-01
Value6.9544.7632.3661.6252.312.3721.8571.1860.5012.2662.6071.7941.5371.1373.0982.0423.7670.947
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax4.12.91.41.11.92.31.51.00.52.52.31.61.41.12.21.63.00.8
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax4.12.91.41.11.92.31.51.00.52.52.31.61.41.12.21.63.00.8
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax calx:Caribbean100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

calx:OtherCountries


Revenue
Period End2021-07-032021-04-032020-09-262020-06-272020-03-282019-09-282019-06-292019-03-302018-09-292018-06-302018-03-312017-09-302017-07-012017-04-01
Value5.6385.5971.7441.2071.2752.6572.2291.6948.223115.3645.2129.0526.954
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax3.33.51.21.01.32.32.21.97.210.35.44.07.25.9
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax3.33.51.21.01.32.32.21.97.210.35.44.07.25.9
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax calx:OtherCountries100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

country:CA


Revenue
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-01
Value7.4446.5064.6235.232.8683.5634.2183.5813.3173.4152.6813.3212.2542.2865.3092.2893.9941.512
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax4.44.02.73.52.43.53.53.13.33.82.32.92.02.33.81.83.21.3
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax4.44.02.73.52.43.53.53.13.33.82.32.92.02.33.81.83.21.3
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax country:CA100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

country:US


Revenue
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-01
Value133134145128108881021018575105999289120117108106
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax79.283.185.485.290.986.685.688.285.684.890.986.583.089.987.591.485.790.6
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax79.283.185.485.290.986.685.688.285.684.890.986.583.089.987.591.485.790.6
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax country:US100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

srt:Europe


Revenue
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-30
Value9.8443.4149.2599.1832.114.1213.6872.8832.4712.4391.752.1373.7441.2272.2091.598
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax5.82.15.46.11.84.13.12.52.52.71.51.93.41.21.61.2
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax5.82.15.46.11.84.13.12.52.52.71.51.93.41.21.61.2
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax srt:Europe100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:MiddleEast


Revenue
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-31
Value5.1727.0894.9034.5372.332.3015.8113.1535.9493.7511.925.757.9933.151
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax3.14.42.93.02.02.34.82.85.94.21.75.07.23.2
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax3.14.42.93.02.02.34.82.85.94.21.75.07.23.2
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:MiddleEast100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Selling And Marketing Expense

us-gaap:SellingAndMarketingExpense

us-gaap:SellingAndMarketingExpense


Selling
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252011-03-262010-12-312010-09-252010-06-26
Value292829232120232019192520201923181822242019192118191921181817181617151715141416121412131010
Percentage of SellingAndMarketingExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax17.617.317.115.317.920.319.417.619.721.621.918.118.420.017.014.314.619.118.817.017.919.420.216.419.421.719.517.718.820.319.816.018.117.518.918.618.919.018.315.114.516.914.313.814.2

Assets

us-gaap:Assets

us-gaap:Assets


Assets
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252010-12-31
Value507468427385321324316316311318317301282270295319329349355323304300323344346347370360362361383392396385377367367359359361367257
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Liabilities

us-gaap:Liabilities

us-gaap:Liabilities


Liabilities
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252010-12-31
Value1621531471371621731621701641721651561411321501691641671421059085888785829791939410911712511710897948582848762
Percentage of Liabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets31.932.834.435.850.553.451.453.852.754.252.152.150.049.050.953.049.847.940.132.529.828.527.225.424.623.826.425.425.826.028.630.031.830.528.826.525.623.822.823.523.724.2

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:LiabilitiesAndStockholdersEquity


Liabilities
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252010-12-31
Value507468427385321324316316311318317301282270295319329349355323304300323344346347370360362361383392396385377367367359359361367257
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252010-12-312009-12-312008-12-31
Value345314280247159150154146147145151144141138144150165182212218213214235256261264272268269267273274270267269270273274277276280195-339.358-322.397
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets68.167.265.664.249.546.648.646.247.345.847.947.950.051.049.147.050.252.159.967.570.271.572.874.675.476.273.674.674.274.071.470.068.269.571.273.574.476.277.276.576.375.80.00.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value-0.182-0.226-0.191-0.693-1.103-1.106-0.854-1.14-0.71-0.487-0.753-0.74-0.3970.11-0.169-0.344-0.464-0.599-0.656-0.226-0.13-0.148-0.195-0.0310.1350.0890.080.190.1320.0980.031-0.017
Percentage of StockholdersEquity-0.1-0.1-0.1-0.3-0.7-0.7-0.6-0.8-0.5-0.3-0.5-0.5-0.30.1-0.1-0.2-0.3-0.3-0.3-0.1-0.1-0.1-0.1-0.00.10.00.00.10.00.00.00.0
Percentage of Assets-0.0-0.0-0.0-0.2-0.3-0.3-0.3-0.4-0.2-0.2-0.2-0.2-0.10.0-0.1-0.1-0.1-0.2-0.2-0.1-0.0-0.0-0.1-0.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value9729619489399128998958888868798768628608538518368188017827607406055243
Percentage of StockholdersEquity281.3305.6338.2379.7573.2596.3581.6608.2601.9603.0576.6598.7609.4618.5587.1392.8347.2294.1285.6282.5266.9310.3-15.5-13.5
Percentage of Assets191.5205.5221.8243.9284.0277.7282.8280.8284.7276.4276.3286.6304.5315.2288.4235.3252.8216.6203.9201.2205.9235.30.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value1.581.5721.5531.5441.5871.5491.5451.5211.521.4881.4821.4621.461.4261.4211.3681.3261.2911.2561.2221.1950.9680.1020.1
Percentage of StockholdersEquity0.50.50.60.61.01.01.01.01.01.01.01.01.01.01.00.60.60.50.50.50.40.5-0.0-0.0
Percentage of Assets0.30.30.40.40.50.50.50.50.50.50.50.50.50.50.50.40.40.30.30.30.30.40.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value-628.019-648.477-669.092-693.194-713.732-709.52-702.576-703.073-699.694-694.649-684.882-679.304-680.113-677.32-667.357-584.325-556.923-530.59-509.776-492.511-464.185-411.635-392.182-365.994
Percentage of StockholdersEquity-181.7-206.1-238.7-280.0-448.4-470.1-456.1-481.1-475.3-476.3-450.8-471.5-481.8-490.7-460.4-274.4-236.2-194.6-186.1-183.0-167.3-210.8115.6113.5
Percentage of Assets-123.7-138.5-156.6-179.9-222.1-219.0-221.8-222.1-224.8-218.3-216.0-225.7-240.8-250.0-226.2-164.4-172.0-143.3-132.9-130.3-129.1-159.80.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Assets Current

us-gaap:AssetsCurrent

us-gaap:AssetsCurrent


Assets
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252010-12-31
Value350309266224158155143141148157174161148137162185194214219189169163182197194189207192193187204207206190176165159148144140141177
Percentage of AssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets69.066.262.558.449.248.145.444.847.649.455.153.752.750.955.158.159.061.461.758.455.554.356.457.356.254.756.053.553.351.853.352.952.249.546.745.043.541.240.339.038.468.8

Cash

us-gaap:Cash us-gaap:ConsolidatedEntities, us-gaap:StatementGeographical

us-gaap:Cash

srt:Subsidiaries, calx:BrazilChinaAndUnitedKingdom


Cashus-gaap:
Period End2020-12-31
Value3.0
Percentage of Cash100.0
Percentage of Assets0.7
Percentage of Assets srt:Subsidiaries calx:BrazilChinaAndUnitedKingdom0.0

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashAndCashEquivalentsAtCarryingValue


Cash
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252011-03-262010-12-312010-09-252010-06-262009-12-312008-12-31
Value5885806350464637344449534842396437265031262123363929483932758279694846575349383018296635243123
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets11.518.318.916.615.714.314.811.911.213.915.717.617.115.713.520.111.37.514.29.88.67.17.310.511.48.513.210.99.020.821.620.217.512.512.415.614.413.810.88.45.10.025.70.00.00.00.0

us-gaap:CashAndCashEquivalentsAtCarryingValue us-gaap:CashAndCashEquivalents

us-gaap:Cash


Cash
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282013-12-31
Value172130235046463734444549443835553417341720101319201317141762
Percentage of CashAndCashEquivalentsAtCarryingValue30.325.638.037.3100.0100.0100.0100.0100.0100.092.392.892.191.190.585.892.667.268.255.779.350.856.654.451.446.736.637.853.476.0
Percentage of Assets3.54.77.26.215.714.314.811.911.213.814.416.315.714.312.217.210.55.19.75.56.83.64.15.75.94.04.84.14.816.4
Percentage of Assets us-gaap:Cash0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommercialPaper


Cash
Period End2021-07-032021-04-032017-12-312017-09-302017-07-012017-04-012016-12-312015-12-31
Value21290.00.00.00.00.9990.0
Percentage of CashAndCashEquivalentsAtCarryingValue36.534.90.00.00.00.02.00.0
Percentage of Assets4.26.40.00.00.00.00.30.0
Percentage of Assets us-gaap:CommercialPaper0.00.00.00.00.00.00.00.0

us-gaap:CorporateDebtSecurities


Cash
Period End2021-07-032017-04-012016-12-31
Value1.1510.4460.0
Percentage of CashAndCashEquivalentsAtCarryingValue2.01.70.0
Percentage of Assets0.20.10.0
Percentage of Assets us-gaap:CorporateDebtSecurities0.00.00.0

us-gaap:MoneyMarketFunds


Cash
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282013-12-31
Value183310100.00.00.0140.0140.0140.0143.843.823.8033.7883.7769.1262.768.19715145.384101016191530241519
Percentage of CashAndCashEquivalentsAtCarryingValue31.239.512.515.70.00.00.00.00.00.07.77.27.98.99.514.27.431.129.844.320.749.243.445.648.653.363.462.246.624.0
Percentage of Assets3.67.22.42.60.00.00.00.00.00.01.21.31.31.41.32.90.82.34.24.31.83.53.24.85.64.58.46.84.25.2
Percentage of Assets us-gaap:MoneyMarketFunds0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:USGovernmentAgenciesDebtSecurities


Cash
Period End2020-12-312020-09-26
Value3929
Percentage of CashAndCashEquivalentsAtCarryingValue49.547.0
Percentage of Assets9.47.8
Percentage of Assets us-gaap:USGovernmentAgenciesDebtSecurities0.00.0

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


Cash
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312016-12-312015-12-31
Value5885806451464738354450534842395023
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets11.518.318.916.715.914.415.012.111.414.015.917.617.115.713.514.27.3

Accounts Receivable Net Current

us-gaap:AccountsReceivableNetCurrent

us-gaap:AccountsReceivableNetCurrent


Accounts
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252010-12-31
Value807469695867464860556767695580445364515749434748413930424744435462705956564847475743
Percentage of AccountsReceivableNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets15.815.916.217.918.220.714.715.319.317.421.122.524.620.627.213.816.218.414.417.716.114.614.614.012.111.28.311.913.012.211.313.915.818.415.815.315.313.413.313.315.716.8

Inventory Net

us-gaap:InventoryNet

us-gaap:InventoryNet


Inventory
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252010-12-31
Value777252413630404645475030192731363946444040414743404046434545513937394330333744443824
Percentage of InventoryNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets15.215.412.210.811.49.412.714.614.614.815.810.17.110.010.711.412.013.312.512.413.413.714.712.711.711.712.612.212.612.513.310.09.410.211.58.29.010.312.412.210.59.5

Prepaid Expense And Other Assets Current

us-gaap:PrepaidExpenseAndOtherAssetsCurrent

us-gaap:PrepaidExpenseAndOtherAssetsCurrent


Prepaid
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242010-12-31
Value1713119.65611119.6988.7877.0949.9617.3061011128.36411111110158.1399.9729.478.3111110126.4695.0384.8695.7576.6568.1266.0635.6774.3834.5973.954.4296.4933.245
Percentage of PrepaidExpenseAndOtherAssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.42.82.72.53.63.53.12.82.33.12.33.53.94.62.83.63.43.43.04.82.73.32.92.43.33.13.51.81.41.31.51.72.11.61.51.21.21.11.21.81.3

Property Plant And Equipment Gross

us-gaap:PropertyPlantAndEquipmentGross

us-gaap:PropertyPlantAndEquipmentGross


Property
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302011-12-31
Value6565667171737278798079918482808988858380777675767777797775737276767577717266
Percentage of PropertyPlantAndEquipmentGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets12.914.015.518.522.222.723.024.725.725.225.030.529.830.327.428.126.824.523.524.825.625.523.222.422.222.321.521.620.820.319.019.419.319.720.519.519.618.4

us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType

calx:Software


Property
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282018-12-31
Value141516161720202624
Percentage of PropertyPlantAndEquipmentGross22.823.024.322.624.628.428.333.430.7
Percentage of Assets2.93.23.84.25.56.46.58.27.7
Percentage of Assets calx:Software0.00.00.00.00.00.00.00.00.0

us-gaap:ComputerEquipment


Property
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282018-12-31
Value9.8979.5129.062111111101010
Percentage of PropertyPlantAndEquipmentGross15.114.513.716.515.715.014.913.413.0
Percentage of Assets1.92.02.13.13.53.43.43.33.3
Percentage of Assets us-gaap:ComputerEquipment0.00.00.00.00.00.00.00.00.0

us-gaap:Equipment


Property
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302011-12-31
Value3737373938373737374039444240394645444342403939404141403937363638383737333129
Percentage of PropertyPlantAndEquipmentGross56.857.356.955.754.650.650.847.847.150.149.347.950.749.849.451.851.751.852.152.452.452.251.952.653.553.851.350.849.849.850.751.049.949.448.646.743.945.1
Percentage of Assets7.38.08.810.312.111.511.711.812.112.612.314.615.115.113.514.613.812.712.313.013.413.312.111.811.912.011.011.010.310.19.69.99.69.79.99.18.68.3
Percentage of Assets us-gaap:Equipment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:FurnitureAndFixtures


Property
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302011-12-31
Value2.0252.0242.0692.2372.1972.342.3422.3232.3312.451.9762.8692.6682.7442.7142.892.8812.7092.8312.4572.2192.0961.8331.8351.8411.8521.8521.7661.6421.6331.6141.5591.5121.5151.471.4691.531.48
Percentage of PropertyPlantAndEquipmentGross3.13.13.13.13.13.23.23.02.93.12.53.13.23.33.43.23.33.23.43.12.92.72.42.42.42.42.32.32.22.22.22.02.02.01.92.02.12.2
Percentage of Assets0.40.40.50.60.70.70.70.70.70.80.61.00.91.00.90.90.90.80.80.80.70.70.60.50.50.50.50.50.50.50.40.40.40.40.40.40.40.4
Percentage of Assets us-gaap:FurnitureAndFixtures0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:LeaseholdImprovements


Property
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302011-12-31
Value1.4661.3761.3451.4471.4282.0312.0471.851.7581.4443.5595.1765.1895.2066.0296.7596.8936.8276.8986.576.5736.5546.5546.5536.5656.5416.556.3867.3467.0917.0776.9486.3816.1636.7636.6226.496.342
Percentage of PropertyPlantAndEquipmentGross2.22.12.02.02.02.82.82.42.21.84.55.66.26.37.57.57.88.08.28.28.48.68.78.58.58.48.28.29.79.69.79.18.48.18.79.29.09.6
Percentage of Assets0.30.30.30.40.40.60.60.60.60.51.11.71.81.92.02.12.12.01.92.02.22.22.01.91.91.91.81.82.02.01.81.81.61.61.81.81.81.8
Percentage of Assets us-gaap:LeaseholdImprovements0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment


Accumulated
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302011-12-31
Value4545455050535149505354706867657270676564626058585858595758565557575656545350
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets9.09.710.713.215.716.416.215.716.316.917.223.524.324.822.122.821.319.318.519.820.420.017.917.016.816.816.016.016.015.614.414.714.614.814.914.814.613.9

Property Plant And Equipment Net

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:PropertyPlantAndEquipmentNet


Property
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252010-12-31
Value192020202020212829262421151415161718171615161718181920201717171818192117181716171811
Percentage of PropertyPlantAndEquipmentNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.94.34.85.26.56.36.89.09.48.37.97.15.55.55.35.35.55.25.14.95.15.55.35.45.45.65.45.64.84.74.64.74.74.95.64.74.94.84.54.84.94.6

us-gaap:PropertyPlantAndEquipmentNet us-gaap:StatementGeographical

country:CN


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value0.9981.0171.6962.5722.6631.7872.2922.5042.693
Percentage of PropertyPlantAndEquipmentNet4.94.76.816.414.810.411.414.312.8
Percentage of Assets0.20.30.50.90.70.60.60.70.7
Percentage of Assets country:CN0.00.00.00.00.00.00.00.00.0

country:US


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value192023131515171418
Percentage of PropertyPlantAndEquipmentNet95.195.393.283.685.289.688.685.787.2
Percentage of Assets4.56.57.34.44.34.74.83.94.9
Percentage of Assets country:US0.00.00.00.00.00.00.00.00.0

Goodwill

us-gaap:Goodwill

us-gaap:Goodwill


Goodwill
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252010-12-31
Value11611611611611611611611611611611611611611611611611611611611611611611611611611611611611611611611611611611611611611611611611665
Percentage of Goodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets22.924.827.230.136.235.936.736.737.336.536.638.641.142.939.436.335.333.232.735.938.238.735.933.833.533.531.432.332.032.130.329.629.330.230.731.631.632.332.332.231.625.5

Intangible Assets Net Excluding Goodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill


Intangible
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282018-12-312017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252010-12-31
Value8.2018.8599.51710101112120.00.00.00.8131.6272.443.2546.6181115202529343943485357626671768084900.515
Percentage of IntangibleAssetsNetExcludingGoodwill100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.61.92.22.63.43.53.84.00.00.00.00.20.50.81.12.03.34.65.96.88.39.510.811.412.313.415.016.518.219.521.222.323.424.50.2

Operating Lease Right Of Use Asset

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OperatingLeaseRightOfUseAsset


Operating
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-31
Value101111101115151516170.0
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets2.22.42.72.83.44.75.05.05.35.40.0

Other Assets Noncurrent

us-gaap:OtherAssetsNoncurrent

us-gaap:OtherAssetsNoncurrent


Other
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252010-12-31
Value10111213151619141.3361.4591.2031.9871.9811.9430.7590.7770.8110.8161.1810.9371.0751.2021.1441.0911.2411.1131.2361.3461.5031.6181.7451.8271.5911.6941.7881.7741.8922.052.1942.2732.3812.376
Percentage of OtherAssetsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.12.42.83.54.75.16.14.50.40.50.40.70.70.70.30.20.20.20.30.30.40.40.40.30.40.30.30.40.40.40.50.50.40.40.50.50.50.60.60.60.60.9

Accounts Payable Current

us-gaap:AccountsPayableCurrent

us-gaap:AccountsPayableCurrent


Accounts
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252010-12-31
Value342913161020102437344032261735292724231913111916181223131210231816131616201414111010
Percentage of AccountsPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets6.96.23.14.33.26.33.47.612.110.812.710.99.26.612.29.38.57.06.76.04.53.76.14.95.33.76.43.73.53.06.04.64.23.64.44.55.53.94.03.33.04.0

Accrued Liabilities Current

us-gaap:AccruedLiabilitiesCurrent

us-gaap:AccruedLiabilitiesCurrent


Accrued
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252010-12-31
Value585668606457575747555757474849597277694943433538363939373434323536363634333536393925
Percentage of AccruedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets11.512.016.115.720.117.918.218.015.317.418.319.016.818.016.718.622.122.019.615.114.414.611.011.110.511.410.710.49.69.68.48.99.39.59.69.39.210.010.110.910.810.1

us-gaap:AccruedLiabilitiesCurrent us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:ComputerSoftwareIntangibleAsset


Accrued
Period End2021-07-032021-04-032020-12-312020-09-262019-09-28
Value3.43.42.92.50.7
Percentage of AccruedLiabilitiesCurrent5.86.14.24.11.2
Percentage of Assets0.70.70.70.60.2
Percentage of Assets us-gaap:ComputerSoftwareIntangibleAsset0.00.00.00.00.0

Contract With Customer Liability Current

us-gaap:ContractWithCustomerLiabilityCurrent

us-gaap:ContractWithCustomerLiabilityCurrent


Contract
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-01-012017-12-31
Value2324191516191718181515161213
Percentage of ContractWithCustomerLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.75.24.54.05.16.15.45.76.04.94.95.64.14.4

us-gaap:ContractWithCustomerLiabilityCurrent us-gaap:DeferredRevenueArrangementType

calx:ExtendedWarranty


Contract
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312017-12-31
Value4.5525.484.5384.4183.7724.2454.6784.1574.0584.0824.03.951
Percentage of ContractWithCustomerLiabilityCurrent19.022.723.628.323.121.327.323.021.926.225.630.2
Percentage of Assets0.91.21.11.11.21.31.51.31.31.31.31.3
Percentage of Assets calx:ExtendedWarranty0.00.00.00.00.00.00.00.00.00.00.00.0

calx:ProductAndServices


Contract
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312017-12-31
Value19181411121512131411119.125
Percentage of ContractWithCustomerLiabilityCurrent81.077.376.471.776.978.772.777.078.173.874.469.8
Percentage of Assets3.84.03.42.93.94.83.94.44.63.63.73.1
Percentage of Assets calx:ProductAndServices0.00.00.00.00.00.00.00.00.00.00.00.0

Liabilities Current

us-gaap:LiabilitiesCurrent

us-gaap:LiabilitiesCurrent


Liabilities
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252010-12-31
Value1171091019211712811512312813514313612011112814714214512184706467666461757073749098107989281786967707350
Percentage of LiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets23.123.423.624.036.539.636.539.141.442.545.345.442.841.143.546.143.241.734.226.123.021.620.819.318.517.620.519.720.420.623.525.127.125.724.422.121.219.418.719.620.019.5

Operating Lease Liability Current

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OperatingLeaseLiabilityCurrent


Operating
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-31
Value3005000.03019000.02994000.02756000.02718000.02728000.02663000.02518000.02381000.02196000.00
Percentage of OperatingLeaseLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets0.60.60.70.70.80.80.80.80.80.70.0

Other Accrued Liabilities Current

us-gaap:OtherAccruedLiabilitiesCurrent

us-gaap:OtherAccruedLiabilitiesCurrent


Other
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302011-12-31
Value4056000.04613000.04737000.03313000.04756000.03375000.04709000.09423000.05915000.06096000.06907000.07976000.04334000.03729000.05655000.06782000.06680000.05831000.01715000.02955000.02995000.03133000.03297000.02996000.03010000.02512000.03714000.05229000.03695000.03881000.03561000.04678000.04328000.04175000.04697000.03691000.03901000.03386000.0
Percentage of OtherAccruedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.81.01.10.91.51.01.53.01.91.92.22.61.51.41.92.12.01.70.50.91.01.01.00.90.90.71.01.51.01.10.91.21.11.11.21.01.10.9

Long Term Debt

us-gaap:LongTermDebt us-gaap:ProductOrService

us-gaap:LongTermDebt

calx:ConsultingServices


Long
Period End2020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-30
Value1600000.01900000.01800000.02100000.01400000.01100000.01300000.0
Percentage of LongTermDebt100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.40.60.60.70.40.40.4
Percentage of Assets calx:ConsultingServices0.00.00.00.00.00.00.0

us-gaap:LongTermDebt us-gaap:PropertyPlantAndEquipmentByType

calx:ResearchAndDevelopmentEquipment


Long
Period End2020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-30
Value1700000.02100000.02500000.02900000.03400000.03800000.04200000.0
Percentage of LongTermDebt106.2110.5138.9138.1242.9345.5323.1
Percentage of Assets0.40.70.80.91.11.21.3
Percentage of Assets calx:ResearchAndDevelopmentEquipment0.00.00.00.00.00.00.0

Other Liabilities Noncurrent

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:OtherLiabilitiesNoncurrent


Other
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252010-12-31
Value11111313131314142.4983.1343.9722.1862.0510.8661.130.8810.6380.7750.8780.9791.0851.1961.2931.71.9032.0912.4431.7430.9581.091.1451.3211.3941.5250.7450.8961.0141.1981.5281.6621.5880.951
Percentage of OtherLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.22.53.13.44.34.24.64.70.81.01.30.70.70.30.40.30.20.20.20.30.40.40.40.50.50.60.70.50.30.30.30.30.40.40.20.20.30.30.40.50.40.4

us-gaap:OtherLiabilitiesNoncurrent us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:ComputerSoftwareIntangibleAsset


Other
Period End2021-07-032021-04-032020-12-312020-09-262019-12-312019-09-28
Value101011111312
Percentage of OtherLiabilitiesNoncurrent92.891.883.786.992.384.8
Percentage of Assets2.12.32.63.04.33.9
Percentage of Assets us-gaap:ComputerSoftwareIntangibleAsset0.00.00.00.00.00.0

Operating Lease Liability Noncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent


Operating
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-31
Value111212121213141415150.0
Percentage of OperatingLeaseLiabilityNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets2.32.63.03.24.04.24.54.64.84.90.0

Lessee Operating Lease Liability Payments Due Year Two

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo


Lessee
Period End2021-07-032021-04-032020-12-312020-09-26
Value4053000.03915000.03812000.03682000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearTwo100.0100.0100.0100.0
Percentage of Assets0.80.80.91.0

Lessee Operating Lease Liability Payments Due Year Three

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree


Lessee
Period End2021-07-032021-04-032020-12-312020-09-26
Value3855000.03725000.03917000.03597000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearThree100.0100.0100.0100.0
Percentage of Assets0.80.80.90.9

Lessee Operating Lease Liability Payments Due Year Four

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour


Lessee
Period End2021-07-032021-04-032020-12-312020-09-26
Value3342000.03218000.03727000.03388000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFour100.0100.0100.0100.0
Percentage of Assets0.70.70.90.9

Lessee Operating Lease Liability Payments Due Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive


Lessee
Period End2020-12-31
Value3220000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFive100.0
Percentage of Assets0.8

Lessee Operating Lease Liability Payments Due After Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive


Lessee
Period End2020-12-31
Value42000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive100.0
Percentage of Assets0.0

Operating Lease Liability

us-gaap:OperatingLeaseLiability

us-gaap:OperatingLeaseLiability


Operating
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272019-12-312019-09-282019-06-292019-03-30
Value141515151517161717
Percentage of OperatingLeaseLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.93.23.73.94.95.45.35.65.6

Lessee Operating Lease Liability Payments Due

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue


Lessee
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-28
Value1717181718192020
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.43.84.44.75.96.16.56.6

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue us-gaap:StatementGeographical

calx:SanJoseCalifornia


Lessee
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-31
Value10111112121314
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue62.164.263.869.168.668.367.7
Percentage of Assets2.12.42.83.24.04.24.4
Percentage of Assets calx:SanJoseCalifornia0.00.00.00.00.00.00.0

Lessee Operating Lease Liability Undiscounted Excess Amount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount


Lessee
Period End2021-07-032021-04-032020-12-312020-09-26
Value2299000.02426000.02713000.02836000.0
Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount100.0100.0100.0100.0
Percentage of Assets0.50.50.60.7

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252010-12-312009-12-312008-12-31
Value345314280247159150154146147145151144141138144150165182212218213214235256261264272268269267273274270267269270273274277276280195-339.358-322.397
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets68.167.265.664.249.546.648.646.247.345.847.947.950.051.049.147.050.252.159.967.570.271.572.874.675.476.273.674.674.274.071.470.068.269.571.273.574.476.277.276.576.375.80.00.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value-0.182-0.226-0.191-0.693-1.103-1.106-0.854-1.14-0.71-0.487-0.753-0.74-0.3970.11-0.169-0.344-0.464-0.599-0.656-0.226-0.13-0.148-0.195-0.0310.1350.0890.080.190.1320.0980.031-0.017
Percentage of StockholdersEquity-0.1-0.1-0.1-0.3-0.7-0.7-0.6-0.8-0.5-0.3-0.5-0.5-0.30.1-0.1-0.2-0.3-0.3-0.3-0.1-0.1-0.1-0.1-0.00.10.00.00.10.00.00.00.0
Percentage of Assets-0.0-0.0-0.0-0.2-0.3-0.3-0.3-0.4-0.2-0.2-0.2-0.2-0.10.0-0.1-0.1-0.1-0.2-0.2-0.1-0.0-0.0-0.1-0.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value9729619489399128998958888868798768628608538518368188017827607406055243
Percentage of StockholdersEquity281.3305.6338.2379.7573.2596.3581.6608.2601.9603.0576.6598.7609.4618.5587.1392.8347.2294.1285.6282.5266.9310.3-15.5-13.5
Percentage of Assets191.5205.5221.8243.9284.0277.7282.8280.8284.7276.4276.3286.6304.5315.2288.4235.3252.8216.6203.9201.2205.9235.30.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value1.581.5721.5531.5441.5871.5491.5451.5211.521.4881.4821.4621.461.4261.4211.3681.3261.2911.2561.2221.1950.9680.1020.1
Percentage of StockholdersEquity0.50.50.60.61.01.01.01.01.01.01.01.01.01.01.00.60.60.50.50.50.40.5-0.0-0.0
Percentage of Assets0.30.30.40.40.50.50.50.50.50.50.50.50.50.50.50.40.40.30.30.30.30.40.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value-628.019-648.477-669.092-693.194-713.732-709.52-702.576-703.073-699.694-694.649-684.882-679.304-680.113-677.32-667.357-584.325-556.923-530.59-509.776-492.511-464.185-411.635-392.182-365.994
Percentage of StockholdersEquity-181.7-206.1-238.7-280.0-448.4-470.1-456.1-481.1-475.3-476.3-450.8-471.5-481.8-490.7-460.4-274.4-236.2-194.6-186.1-183.0-167.3-210.8115.6113.5
Percentage of Assets-123.7-138.5-156.6-179.9-222.1-219.0-221.8-222.1-224.8-218.3-216.0-225.7-240.8-250.0-226.2-164.4-172.0-143.3-132.9-130.3-129.1-159.80.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252010-12-31
Value1580000.01572000.01553000.01544000.01587000.01549000.01545000.01521000.01520000.01488000.01482000.01462000.01460000.01426000.01421000.01393000.01390000.01374000.01368000.01353000.01351000.01328000.01326000.01316000.01313000.01295000.01291000.01280000.01273000.01258000.01256000.01244000.01238000.01222000.01222000.01210000.01205000.01196000.01195000.01182000.01167000.0968000.0
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.30.30.40.40.50.50.50.50.50.50.50.50.50.50.50.40.40.40.40.40.40.40.40.40.40.40.30.40.40.30.30.30.30.30.30.30.30.30.30.30.30.4

Additional Paid In Capital Common Stock

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:AdditionalPaidInCapitalCommonStock


Additional
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252010-12-31
Value972961948939912899895888886879876862860853851843840839836830825821818813811805801794791785782776772764760754751744740734731605
Percentage of AdditionalPaidInCapitalCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets191.5205.5221.8243.9284.0277.7282.8280.8284.7276.4276.3286.6304.5315.2288.4264.0255.4239.9235.3256.3271.3273.4252.8236.5233.9232.0216.6220.7218.2217.4203.9197.9195.1198.7201.2205.3204.2207.0205.9203.3198.8235.3

Retained Earnings Accumulated Deficit

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:RetainedEarningsAccumulatedDeficit


Retained
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252010-12-31
Value-628020000.0-648480000.0-669090000.0-693190000.0-713730000.0-709520000.0-702580000.0-703070000.0-699690000.0-694650000.0-684880000.0-679300000.0-680110000.0-677320000.0-667360000.0-654490000.0-636640000.0-617650000.0-584320000.0-572840000.0-573480000.0-567650000.0-556920000.0-547380000.0-548300000.0-542520000.0-530590000.0-527600000.0-523750000.0-519800000.0-509780000.0-503320000.0-503870000.0-498710000.0-492510000.0-485940000.0-478800000.0-471710000.0-464180000.0-458970000.0-452040000.0-411640000.0
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-123.7-138.5-156.6-179.9-222.1-219.0-221.8-222.1-224.8-218.3-216.0-225.7-240.8-250.0-226.2-204.8-193.3-176.6-164.4-176.8-188.4-189.0-172.0-159.1-158.0-156.3-143.3-146.5-144.3-143.8-132.9-128.4-127.2-129.5-130.3-132.2-130.2-131.1-129.1-127.1-122.8-159.8

Accumulated Other Comprehensive Income Loss Net Of Tax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax


Accumulated
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252010-12-312009-12-31
Value-182000.0-226000.0-191000.0-693000.0-1103000.0-1106000.0-854000.0-1140000.0-710000.0-487000.0-753000.0-740000.0-397000.0110000.0-169000.0-344000.0-464000.0-599000.0-656000.0-226000.0-130000.0-148000.0-195000.0-31000.0135000.089000.080000.0139000.0159000.0201000.0190000.0179000.0144000.0114000.0132000.0133000.0109000.0145000.098000.085000.045000.031000.0-17000.0
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-0.0-0.0-0.0-0.2-0.3-0.3-0.3-0.4-0.2-0.2-0.2-0.2-0.10.0-0.1-0.1-0.1-0.2-0.2-0.1-0.0-0.0-0.1-0.00.00.00.00.00.00.10.00.00.00.00.00.00.00.00.00.00.00.00.0

Stock Issued During Period Value New Issues

us-gaap:StockIssuedDuringPeriodValueNewIssues

us-gaap:StockIssuedDuringPeriodValueNewIssues


Stock
Period End2020-12-312020-09-26
Value0.060
Percentage of StockIssuedDuringPeriodValueNewIssues0.0100.0
Percentage of Assets0.00.0

us-gaap:StockIssuedDuringPeriodValueNewIssues us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stock
Period End2020-12-312020-09-26
Value0.059
Percentage of StockIssuedDuringPeriodValueNewIssues0.099.9
Percentage of Assets0.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.0

us-gaap:CommonStock


Stock
Period End2020-12-312020-09-26
Value0.00.082
Percentage of StockIssuedDuringPeriodValueNewIssues0.00.1
Percentage of Assets0.00.0
Percentage of Assets us-gaap:CommonStock0.00.0

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

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue


Adjustments
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-31
Value6.2235.1714.163.5743.2412.9842.7052.7622.5693.1459.6732.4992.5442.757
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Adjustments
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-31
Value6.2235.1714.163.5743.2412.9842.7052.7622.5693.1459.6732.4992.5442.757
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252011-03-262010-12-312010-09-25
Value239.89830172.6861.2490.627.285-2.878-0.373-1.667.8983.145-5.823-34.147-7.1912.02-23.45419-0.1280.1195.269-4.1495.4795.226-11.89723154.71-5.2264.01113202.382.8616.714.59135.857.813-1.7682.6940.7998.577
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax13.96.117.911.32.31.20.56.4-2.9-0.4-1.46.92.8-5.9-24.8-5.61.6-20.014.5-0.10.15.4-4.04.95.3-13.121.114.24.8-6.14.313.122.02.63.18.35.817.26.49.3-1.83.80.911.4

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252011-03-262010-12-312010-09-25
Value-54.739-13.466-15.198-41.123-2.751-1.729-0.969-2.846-4.499-5.039-4.865-2.606-1.088.4755.364.2549.6920.428-2.7236.2143.0255.5676.093-0.3716.239-7.296-17.222-7.322-48.992-1.908-1.512-2.21-1.939-1.326-14.3-1.583-3.284-3.0120.9165.087-2.807-39.605401.825
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax-32.5-8.3-8.9-27.3-2.3-1.7-0.8-2.5-4.5-5.6-4.2-2.3-1.08.53.93.37.70.4-2.15.12.85.75.8-0.36.3-8.0-15.4-6.9-50.0-2.2-1.6-2.1-2.1-1.5-15.6-1.9-4.2-3.81.06.1-2.9-55.443.82.4

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252011-03-262010-12-312010-09-25
Value3.9868.6390.614374.4260.089.356-1.445-1.55-0.393.775-0.1633.8770.0034.21729-0.848-1.082.434-0.241.609-13.046-14.414-8.295-1.490.0583.198-0.8381.667-0.4521.086-1.7082.3980.0421.013-0.8072.2350.0721.911-1.353-6.3460.154-9.7880.018
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax2.45.30.424.63.70.17.8-1.3-1.5-0.43.3-0.13.50.03.123.1-0.7-0.91.8-0.21.5-13.3-13.7-7.4-1.50.12.9-0.81.7-0.51.2-1.62.50.01.1-1.02.80.12.1-1.6-6.50.2-10.70.0

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

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect


Cash
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-31
Value-27.2645.04716134.363-0.649.2712.616-9.125-5.579-2.7594.8585.5472.853
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax-16.23.19.68.83.7-0.67.72.3-9.1-6.2-2.44.25.02.9

Increase Decrease In Accounts Payable

us-gaap:IncreaseDecreaseInAccountsPayable

us-gaap:IncreaseDecreaseInAccountsPayable


Increase
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252011-03-262010-12-312010-09-25
Value5.76216-3.4266.287-10.1439.472-13.393-13.3713.673-6.3499.6925.2197.556-17.8716.2161.8123.4550.2764.5925.5032.6-8.4592.82-1.755.745-10.836100.4091.963-12.2765.091.3593.041-3.1310.368-3.8116.114-0.1172.3081.01-5.068-6.0681.4834.476
Percentage of IncreaseDecreaseInAccountsPayable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Accounts Receivable

us-gaap:IncreaseDecreaseInAccountsReceivable

us-gaap:IncreaseDecreaseInAccountsReceivable


Increase
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252011-03-262010-12-312010-09-25
Value5.7564.9890.28810-8.54520-2.023-11.6544.983-11.823-0.645-1.86513-25.13736-9.165-10.79612-5.9198.1415.314-3.351-1.0326.2032.9848.256-12.037-4.5483.1950.614-10.901-8.305-7.991114.5620.0018.2510.1970.042-10.0391.887-4.17710-2.659
Percentage of IncreaseDecreaseInAccountsReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Inventories

us-gaap:IncreaseDecreaseInInventories

us-gaap:IncreaseDecreaseInInventories


Increase
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252011-03-262010-12-312010-09-25
Value4.92519104.9586.12-9.614-6.2030.996-1.866-2.9251910-7.073-2.451-4.792-3.251-6.9661.9934.355-0.571-0.366-6.543.8983.0590.073-6.1152.907-2.0430.828-6.011101.974-1.83-4.053.121-3.068-3.914-7.4470.4525.663-10.891-4.406-0.363-0.023
Percentage of IncreaseDecreaseInInventories100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252011-03-262010-12-312010-09-25
Value239.89830172.6861.2490.627.285-2.878-0.373-1.667.8983.145-5.823-34.147-7.1912.02-23.45419-0.1280.1195.269-4.1495.4795.226-11.89723154.71-5.2264.01113202.382.8616.714.59135.857.813-1.7682.6940.7998.577
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax13.96.117.911.32.31.20.56.4-2.9-0.4-1.46.92.8-5.9-24.8-5.61.6-20.014.5-0.10.15.4-4.04.95.3-13.121.114.24.8-6.14.313.122.02.63.18.35.817.26.49.3-1.83.80.911.4

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252011-03-262010-12-312010-09-252010-06-26
Value20202420-4.212-6.9440.497-3.379-5.045-9.767-5.5780.809-2.793-11.736-12.866-17.853-18.988-33.325-11.4830.636-5.826-10.729-9.5460.922-5.779-11.93-2.988-3.848-3.951-10.027-6.4530.544-5.153-6.203-6.574-7.14-7.091-7.521-5.214-6.934-17.646-22.756-0.738-5.351-3.202
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax12.112.714.213.6-3.5-6.80.4-3.0-5.0-10.9-4.80.7-2.5-11.8-9.3-13.9-15.1-28.4-8.70.5-5.4-10.9-9.10.8-5.8-13.1-2.7-3.6-4.0-11.7-6.90.5-5.5-6.9-7.2-8.8-9.0-9.6-5.7-8.3-18.0-31.8-0.8-7.1-4.5

us-gaap:ProfitLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Profit
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-31
Value20202420-4.212-6.9440.497-3.379-5.045-9.767-5.5780.809-2.793-11.736
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax12.112.714.213.6-3.5-6.80.4-3.0-5.0-10.9-4.80.7-2.5-11.8
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Share Based Compensation

us-gaap:ShareBasedCompensation

us-gaap:ShareBasedCompensation


Share
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252011-03-262010-12-312010-09-25
Value6.2235.1714.163.5753.2412.9842.7052.7622.5693.1459.6732.4992.5442.7573.0542.9962.7783.543.9194.6772.9682.7213.2122.594.3413.6623.8983.8134.4043.9024.9564.9715.2754.7194.4764.3074.3394.3154.3663.7965.3248.1178.0937.494
Percentage of ShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensation us-gaap:TitleOfIndividual, us-gaap:AwardType, us-gaap:PlanName

srt:ExecutiveOfficer, calx:PerformanceBasedStockOptions, calx:A2020PerformanceTargets


Share
Period End2020-09-262020-06-272020-03-28
Value0.40.50.3
Percentage of ShareBasedCompensation11.215.410.1

srt:ExecutiveOfficer, calx:PerformanceBasedStockOptions, calx:A2021PerformanceTargets


Share
Period End2021-07-032021-04-03
Value1.91.0
Percentage of ShareBasedCompensation30.519.3

us-gaap:ShareBasedCompensation us-gaap:TitleOfIndividual, us-gaap:AwardType, us-gaap:PlanName, us-gaap:SubsequentEventType

srt:ExecutiveOfficer, calx:PerformanceBasedStockOptions, calx:A2020PerformanceTargets, us-gaap:SubsequentEvent


Share
Period End2021-02-20
Value1.6
Percentage of ShareBasedCompensation0.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252011-03-262010-12-312010-09-25
Value-54.739-13.466-15.198-41.123-2.751-1.729-0.969-2.846-4.499-5.039-4.865-2.606-1.088.4755.364.2549.6920.428-2.7236.2143.0255.5676.093-0.3716.239-7.296-17.222-7.322-48.992-1.908-1.512-2.21-1.939-1.326-14.3-1.583-3.284-3.0120.9165.087-2.807-39.605401.825
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax-32.5-8.3-8.9-27.3-2.3-1.7-0.8-2.5-4.5-5.6-4.2-2.3-1.08.53.93.37.70.4-2.15.12.85.75.8-0.36.3-8.0-15.4-6.9-50.0-2.2-1.6-2.1-2.1-1.5-15.6-1.9-4.2-3.81.06.1-2.9-55.443.82.4

Payments To Acquire Property Plant And Equipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment


Payments
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252011-03-262010-12-312010-09-25
Value1.6542.2742.2021.1372.7511.7290.9692.8464.4995.0394.8652.6061.081.8751.242.0712.6092.1064.4752.2861.6251.4531.3352.3251.8761.7422.485.1532.421.9081.5122.211.9391.3262.31.5833.2843.0121.0841.7632.7861.7221.6911.017
Percentage of PaymentsToAcquirePropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252011-03-262010-12-312010-09-25
Value3.9868.6390.614374.4260.089.356-1.445-1.55-0.393.775-0.1633.8770.0034.21729-0.848-1.082.434-0.241.609-13.046-14.414-8.295-1.490.0583.198-0.8381.667-0.4521.086-1.7082.3980.0421.013-0.8072.2350.0721.911-1.353-6.3460.154-9.7880.018
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax2.45.30.424.63.70.17.8-1.3-1.5-0.43.3-0.13.50.03.123.1-0.7-0.91.8-0.21.5-13.3-13.7-7.4-1.50.12.9-0.81.7-0.51.2-1.62.50.01.1-1.02.80.12.1-1.6-6.50.2-10.70.0

Effective Income Tax Rate Continuing Operations

us-gaap:EffectiveIncomeTaxRateContinuingOperations

us-gaap:EffectiveIncomeTaxRateContinuingOperations


Effective
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-31
Value1.00.7-4.00.7-0.036-0.05-0.021-0.22-0.019-0.016-0.0020.095-0.06-0.0090.001-0.013-0.009-0.0210.0160.247-0.022-0.0110.0020.167-0.018-0.008-0.01-0.031-0.027-0.0110.00219.049-0.045-0.0610.007-0.006-0.02-0.013
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

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

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value6801000.06877000.04442000.05756000.03209000.02655000.03701000.02560000.02213000.01661000.0735000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value9.767.667.47.3810.1411.8111.3812.9613.5115.33
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod

us-gaap:RestrictedStockUnitsRSU


Share
Period End2020-12-312020-09-262020-06-272019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-30
Value12000.0100000.0100000.0-10000.0200000.0200000.00-146.00146560.027586.0-236.092266.0209870.0192490.0102200.0880440.0111880.086239.0165300.01121500.0235000.0192170.0115430.0663700.015700.090814.086000.0528190.00169000.0116850.0394650.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod100.0100.0100.0100.0100.0100.00.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0

Deferred Tax Liabilities

us-gaap:DeferredTaxLiabilities

us-gaap:DeferredTaxLiabilities


Deferred
Period End2020-12-312019-12-31
Value19000.011000.0
Percentage of DeferredTaxLiabilities100.0100.0

Unrecognized Tax Benefits

us-gaap:UnrecognizedTaxBenefits

us-gaap:UnrecognizedTaxBenefits


Unrecognized
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312011-12-312010-12-31
Value232221201816151414141413131313127.801
Percentage of UnrecognizedTaxBenefits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Assets Valuation Allowance

us-gaap:DeferredTaxAssetsValuationAllowance

us-gaap:DeferredTaxAssetsValuationAllowance


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value189206203198239222212207207202
Percentage of DeferredTaxAssetsValuationAllowance100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

calx:AccruedCommonAreasMaintenanceFeesAndPropertyTaxesWriteOff us-gaap:RestructuringPlan

calx:AccruedCommonAreasMaintenanceFeesAndPropertyTaxesWriteOff

calx:AllPlatformFutureAndWorkFromAnywhereCultureAlignment


Accrued
Period End2020-12-312020-09-262020-06-27
Value01400000.01400000.0
Percentage of AccruedCommonAreasMaintenanceFeesAndPropertyTaxesWriteOff0.0100.0100.0

calx:AssetWriteOff us-gaap:RestructuringPlan

calx:AssetWriteOff

calx:AllPlatformFutureAndWorkFromAnywhereCultureAlignment


Asset
Period End2020-12-312020-09-262020-06-27
Value0300000.0300000.0
Percentage of AssetWriteOff0.0100.0100.0

calx:InterestAndOtherIncomeExpenseNonoperating

calx:InterestAndOtherIncomeExpenseNonoperating


Interest
Period End2021-07-032021-04-032020-09-262020-06-272020-03-282019-09-282019-06-292019-03-302018-09-292018-06-302018-03-312017-09-302017-07-012017-04-01
Value136000.0-37000.0-1063000.0-726000.0-275000.082000.0-19000.0-499000.0218000.0291000.0-517000.0-365000.0-97000.0164000.0
Percentage of InterestAndOtherIncomeExpenseNonoperating100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

calx:PaymentsForFinancingArrangements

calx:PaymentsForFinancingArrangements


Payments
Period End2020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-31
Value3416000.0813000.0687000.0842000.0735000.0735000.0614000.0653000.00000
Percentage of PaymentsForFinancingArrangements100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0

calx:PaymentsToSettlePurchaseObligations us-gaap:ProductOrService

calx:PaymentsToSettlePurchaseObligations

calx:ConsultingServices


Payments
Period End2020-12-31
Value1400000.0
Percentage of PaymentsToSettlePurchaseObligations100.0

calx:PaymentsToSettlePurchaseObligations us-gaap:PropertyPlantAndEquipmentByType

calx:ResearchAndDevelopmentEquipment


Payments
Period End2020-12-31
Value1400000.0
Percentage of PaymentsToSettlePurchaseObligations100.0

calx:StockIssuedDuringPeriodSharesPerformanceRestrictedStockAwardNetofForfeitures us-gaap:StatementEquityComponents

calx:StockIssuedDuringPeriodSharesPerformanceRestrictedStockAwardNetofForfeitures

us-gaap:CommonStock


Stock
Period End2020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-31
Value15000.018000.0233000.048000.051000.059000.0334000.0167000.082000.082000.0521000.0227000.0
Percentage of StockIssuedDuringPeriodSharesPerformanceRestrictedStockAwardNetofForfeitures100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

calx:StockIssuedDuringPeriodValuePerformanceRestrictedStockAwardNetofForfeitures us-gaap:StatementEquityComponents

calx:StockIssuedDuringPeriodValuePerformanceRestrictedStockAwardNetofForfeitures

us-gaap:AdditionalPaidInCapital


Stock
Period End2020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-31
Value00-6000.0-1000.0-3000.0-11000.0-138000.0-32000.0-19000.0-50000.0-16000.0-11000.0
Percentage of StockIssuedDuringPeriodValuePerformanceRestrictedStockAwardNetofForfeitures0.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CommonStock


Stock
Period End2020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-31
Value006000.01000.01000.01000.08000.05000.01000.02000.013000.06000.0
Percentage of StockIssuedDuringPeriodValuePerformanceRestrictedStockAwardNetofForfeitures0.00.0-100.0-100.0-33.3-9.1-5.8-15.6-5.3-4.0-81.2-54.5

us-gaap:CapitalizedContractCostAmortization

us-gaap:CapitalizedContractCostAmortization


Capitalized
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-09-282019-06-29
Value200000.0100000.0100000.046000.0100000.0100000.044000.0100000.0
Percentage of CapitalizedContractCostAmortization100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CapitalizedContractCostAmortization us-gaap:CapitalizedContractCost

calx:CloudImplementationCosts


Capitalized
Period End2020-12-312020-09-262020-06-272020-03-28
Value3100000.0700000.0800000.0800000.0
Percentage of CapitalizedContractCostAmortization3100.01521.7800.0800.0

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

us-gaap:ConcentrationRiskPercentage1

calx:LumenTechnologiesInc, us-gaap:RevenueFromContractWithCustomer, us-gaap:CustomerConcentrationRisk


Concentration
Period End2020-09-262020-06-272020-03-282019-09-28
Value12.015.015.016.0
Percentage of ConcentrationRiskPercentage1100.0100.0100.0100.0

us-gaap:ContractWithCustomerLiabilityRevenueRecognized

us-gaap:ContractWithCustomerLiabilityRevenueRecognized


Contract
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272019-09-282019-06-292018-09-292018-06-30
Value6.88.3157.67.46.76.75.33.2
Percentage of ContractWithCustomerLiabilityRevenueRecognized100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtInstrumentBasisSpreadOnVariableRate1 us-gaap:Range, us-gaap:CreditFacility, us-gaap:LineOfCreditFacility, us-gaap:SubsequentEventType, us-gaap:VariableRate

us-gaap:DebtInstrumentBasisSpreadOnVariableRate1

srt:Maximum, us-gaap:RevolvingCreditFacility, calx:BankOfAmerica, us-gaap:SubsequentEvent, us-gaap:LondonInterbankOfferedRateLIBOR


Debt
Period End2020-07-012020-01-20
Value0.020.0225
Percentage of DebtInstrumentBasisSpreadOnVariableRate1100.0100.0

srt:Maximum, us-gaap:RevolvingCreditFacility, calx:BankOfAmerica, us-gaap:SubsequentEvent, us-gaap:PrimeRate


Debt
Period End2020-07-012020-01-20
Value0.010.0125
Percentage of DebtInstrumentBasisSpreadOnVariableRate150.055.6

us-gaap:Depreciation

us-gaap:Depreciation


Depreciation
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-24
Value3.664.0773.4073.3053.4623.5442.9092.7632.3632.2812.0952.152.3192.6232.5462.7032.4662.4632.0372.1512.1761.9552.662.6242.4982.482.4912.252.2512.2712.4142.4042.5092.8542.2112.2222.1691.962.0052.09
Percentage of Depreciation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


Effect
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-31
Value30000.0-24000.0464000.0369000.02000.0-240000.0264000.0-378000.0-198000.0223000.0-9000.0-271000.0-395000.0198000.0
Percentage of EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GainLossOnDispositionOfAssets

us-gaap:GainLossOnDispositionOfAssets


Gain
Period End2020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-31
Value-165000.00-3749000.00-12000.0-2486000.0-43000.0-95000.0-15000.0-64000.0-3000.0-244000.0-132000.0-68000.00-80000.00000-10000.0-9000.05000.0-10000.0-9000.0-41000.000-5000.0-4000.0-18000.0-542000.00
Percentage of GainLossOnDispositionOfAssets100.00.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.00.00.00.00.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0100.00.0

us-gaap:IncreaseDecreaseInAccruedLiabilities

us-gaap:IncreaseDecreaseInAccruedLiabilities


Increase
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252011-03-262010-12-312010-09-25
Value2.672-12.8568.088-4.0346.5011.3670.8797.599-8.7-1.614-0.8616.241-1.784-0.805-10.052-13.094-4.1487.11204.9620.5418.471-2.7261.834-2.9430.0541.922.9190.1162.485-2.993-1.688-0.0180.4821.2290.41-2.215-0.293-3.236-0.179-5.0398.0680.021-0.544
Percentage of IncreaseDecreaseInAccruedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInDeferredRevenue

us-gaap:IncreaseDecreaseInDeferredRevenue


Increase
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252011-03-262010-12-312010-09-25
Value0.8025.3623.9380.605-3.0182.071-0.196-0.6262.5040.719-1.824-0.7820.3140.866-15.68-13.55-2.34117124.062.518-2.1950.892.30.039-3.651-6.787-6.084-2.496-5.811-10.106-7.6995.55210106.8864.8334.125-1.583-3.3385.3663.772-3.491-9.297
Percentage of IncreaseDecreaseInDeferredRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherNoncurrentLiabilities

us-gaap:IncreaseDecreaseInOtherNoncurrentLiabilities


Increase
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252011-03-262010-12-312010-09-25
Value-368000.0-2374000.03916000.0-312000.0264000.0-990000.0-586000.0-280000.0-800000.0-1696000.0248000.0-414000.0247000.0-264000.0249000.0244000.0-138000.0-103000.0-99000.0-106000.0-109000.0-98000.0-196000.0-32000.0-76000.0-59000.0-84000.0785000.0-132000.0-56000.0-176000.0-73000.0-131000.0442000.0-149000.0-119000.0-184000.0-330000.0-134000.074000.0-245000.0-8000.0-41000.0-48000.0
Percentage of IncreaseDecreaseInOtherNoncurrentLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets


Increase
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252011-03-262010-12-312010-09-25
Value5069000.01321000.02937000.0-2535000.0-417000.0-758000.0433000.01327000.0-3632000.01935000.0-4119000.0-526000.0-1455000.02521000.0-3162000.0164000.0-812000.0968000.0-4861000.07452000.0-1970000.0576000.01292000.0-3116000.0909000.0-1974000.05593000.01275000.056000.0-1016000.0-1001000.0-1543000.02083000.0-74000.0444000.0-357000.0489000.0-623000.0-2143000.01045000.02405000.0-1159000.0186000.0-565000.0
Percentage of IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements


Incremental
Period End2021-07-032021-04-032020-12-312020-09-262019-09-282018-09-292017-09-302016-09-242015-09-262014-09-272013-09-282012-09-29
Value4592000.04465000.0646000.03142000.00746000.00536000.0260000.001448000.00
Percentage of IncrementalCommonSharesAttributableToShareBasedPaymentArrangements100.0100.0100.0100.00.0100.00.0100.0100.00.0100.00.0

us-gaap:OperatingLeaseExpense

us-gaap:OperatingLeaseExpense


Operating
Period End2021-07-032021-04-032020-09-262020-06-272020-03-282019-09-282019-06-292019-03-302018-09-29
Value900000.01100000.0900000.01100000.01100000.01100000.01300000.01200000.0800000.0
Percentage of OperatingLeaseExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingLeasePayments

us-gaap:OperatingLeasePayments


Operating
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-09-282019-06-292019-03-30
Value1000000.01000000.01300000.0800000.01700000.01000000.0900000.01200000.0800000.0
Percentage of OperatingLeasePayments100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsForRestructuring

us-gaap:PaymentsForRestructuring


Payments
Period End2021-07-032021-04-032020-09-262020-06-27
Value119000.0146000.0931000.065000.0
Percentage of PaymentsForRestructuring100.0100.0100.0100.0

us-gaap:PaymentsForRestructuring us-gaap:RestructuringCostAndReserve

us-gaap:EmployeeSeverance


Payments
Period End2021-07-032021-04-032020-09-262020-06-272017-12-312017-09-302017-07-01
Value48000.084000.0871000.065000.0759000.01017000.01056000.0
Percentage of PaymentsForRestructuring40.357.593.6100.00.00.00.0

us-gaap:FacilityClosing


Payments
Period End2021-07-032021-04-032020-09-262020-06-27
Value71000.062000.060000.00
Percentage of PaymentsForRestructuring59.742.56.40.0

us-gaap:PaymentsOfDebtIssuanceCosts

us-gaap:PaymentsOfDebtIssuanceCosts


Payments
Period End2020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312017-12-312016-12-312014-12-312013-12-312013-07-292012-12-31
Value00108000.0177000.00000000015000.0300000.00
Percentage of PaymentsOfDebtIssuanceCosts0.00.0100.0100.00.00.00.00.00.00.00.00.0100.0100.00.0

us-gaap:PaymentsToAcquireAvailableForSaleSecuritiesDebt

us-gaap:PaymentsToAcquireAvailableForSaleSecuritiesDebt


Payments
Period End2021-07-032021-04-03
Value9354
Percentage of PaymentsToAcquireAvailableForSaleSecuritiesDebt100.0100.0

us-gaap:ProceedsFromIssuanceOfCommonStock

us-gaap:ProceedsFromIssuanceOfCommonStock


Proceeds
Period End2020-12-31
Value0.0
Percentage of ProceedsFromIssuanceOfCommonStock0.0

us-gaap:ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlans

us-gaap:ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlans


Proceeds
Period End2020-12-312020-09-262019-12-312019-09-282015-09-262014-09-27
Value2787000.01644000.04276000.0000
Percentage of ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlans100.0100.0100.00.00.00.0

us-gaap:ProceedsFromLinesOfCredit

us-gaap:ProceedsFromLinesOfCredit


Proceeds
Period End2020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-31
Value0.00.00.03030245930153116124163102680.00.00.0
Percentage of ProceedsFromLinesOfCredit0.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0

us-gaap:ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities

us-gaap:ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities


Proceeds
Period End2021-07-032021-04-032018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-31
Value40430.00.00.00.06.66.3257.2511188.54.657.02202316113.6
Percentage of ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities100.0100.00.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromStockOptionsExercised

us-gaap:ProceedsFromStockOptionsExercised


Proceeds
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-31
Value4.1988.6391.2432.1334.5091.0990.1160.00.0360.290.3050.0280.0430.0080.0330.00.0160.0130.0030.00.00.0140.0130.0350.0260.5641.2390.290.1180.0210.0290.3830.2460.0420.042
Percentage of ProceedsFromStockOptionsExercised100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProductWarrantyAccrualPayments

us-gaap:ProductWarrantyAccrualPayments


Product
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-25
Value0.7420.760.8950.8920.9741.2131.8241.6511.1161.0871.0170.811.4692.082.8052.8683.2563.2982.7430.9481.4850.6191.0170.7221.3780.9981.2520.7021.2420.9381.081.9551.2770.9441.20.9961.4041.4431.4752.2181.511
Percentage of ProductWarrantyAccrualPayments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProductWarrantyAccrualWarrantiesIssued

us-gaap:ProductWarrantyAccrualWarrantiesIssued


Product
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-25
Value1003000.01202000.01547000.01716000.01276000.01349000.01834000.01025000.0860000.0706000.0904000.01282000.01560000.01469000.03059000.02057000.01743000.01862000.03606000.03180000.02532000.0580000.01732000.0781000.01080000.01068000.030000.0839000.01053000.0909000.0576000.0992000.01615000.01167000.01265000.01416000.0832000.01188000.01323000.01341000.01878000.0
Percentage of ProductWarrantyAccrualWarrantiesIssued100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RepaymentsOfLinesOfCredit

us-gaap:RepaymentsOfLinesOfCredit


Repayments
Period End2020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-31
Value0.0264.03024256430153116124163102380.00.00.0
Percentage of RepaymentsOfLinesOfCredit0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0

us-gaap:RestructuringCharges

us-gaap:RestructuringCharges


Restructuring
Period End2020-12-312020-09-262020-06-272019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-26
Value006286000.00000-271000.0-157000.0793000.05340000.01981000.0612000.0957000.0699000.00000
Percentage of RestructuringCharges0.00.0100.00.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0

us-gaap:RestructuringCharges us-gaap:RestructuringCostAndReserve

us-gaap:EmployeeSeverance


Restructuring
Period End2020-09-262020-06-272018-03-312017-12-312017-09-302017-07-012017-04-01
Value01174000.05300000.01539000.0600000.0957000.0699000.0
Percentage of RestructuringCharges0.018.799.377.798.0100.0100.0

us-gaap:FacilityClosing


Restructuring
Period End2020-09-262020-06-27
Value05112000.0
Percentage of RestructuringCharges0.081.3

us-gaap:RestructuringCharges us-gaap:RestructuringPlan

calx:AllPlatformFutureAndWorkFromAnywhereCultureAlignment


Restructuring
Period End2020-12-312020-09-262020-06-27
Value006300000.0
Percentage of RestructuringCharges0.00.0100.2

us-gaap:RestructuringCharges us-gaap:StatementGeographical, us-gaap:RestructuringCostAndReserve

calx:RichardsonTexasAndSanJoseCalifornia, us-gaap:FacilityClosing


Restructuring
Period End2020-12-312020-09-262020-06-27
Value03500000.03500000.0
Percentage of RestructuringCharges0.00.055.7

us-gaap:RestructuringReserveSettledWithoutCash2

us-gaap:RestructuringReserveSettledWithoutCash2


Restructuring
Period End2020-09-262020-06-27
Value1000.03747000.0
Percentage of RestructuringReserveSettledWithoutCash2100.0100.0

us-gaap:RestructuringReserveSettledWithoutCash2 us-gaap:RestructuringCostAndReserve

us-gaap:FacilityClosing


Restructuring
Period End2020-09-262020-06-27
Value1000.03747000.0
Percentage of RestructuringReserveSettledWithoutCash2100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue

us-gaap:RestrictedStockUnitsRSU


Share
Period End2020-12-312020-09-262020-06-272019-12-312019-09-282019-06-292018-06-302017-12-312017-09-302017-07-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292012-12-312012-09-292012-06-30
Value011.2211.2206.626.626.5506.346.7-0.17.846.867.420.027.488.460.018.48.778.470.3511.988.34-0.015.156.95
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue0.0100.0100.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod

us-gaap:RestrictedStockUnitsRSU


Share
Period End2020-12-312020-09-262020-06-272019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272014-12-312014-09-272014-06-282013-12-312013-09-282013-06-292012-12-312012-09-29
Value14000.018000.0200000.071000.0100000.0400000.0107000.084714.088904.0508810.0152820.0401900.0107110.0510830.052161.0372470.058444.0456150.031943.0297530.0110640.0296330.0241200.0194050.0223620.0463280.0209030.0147560.0406350.0219950.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized

us-gaap:EmployeeStock


Share
Period End2021-07-032019-05-31
Value1300000.02500000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized us-gaap:PlanName

calx:A2017NonqualifiedEmployeeStockPurchasePlan


Share
Period End2021-07-032020-05-312018-05-16
Value800000.01200000.02500000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized61.50.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross


Share
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012016-09-242016-06-252015-12-312015-09-262015-06-272014-12-312014-09-272014-06-282013-12-312013-09-282013-06-292012-12-312012-09-29
Value500000.0100000.01379000.0100000.0900000.050000.00165000.0065000.01962000.01565000.00380000.000001000000.0329000.00033000.0062580.0235000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross100.0100.0100.0100.0100.0100.00.0100.00.0100.0100.0100.00.0100.00.00.00.00.0100.0100.00.00.0100.00.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue


Share
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282018-12-312018-09-292018-03-312017-12-312017-09-302016-12-312016-09-242014-12-312014-09-272013-12-312013-09-282012-12-312012-09-29
Value40.8233.2-4.7221.0912.639.16-3.367.06.2-0.263.450.293.290.454.206.56-0.073.47
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0

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

srt:ExecutiveOfficer, calx:PerformanceBasedStockOptions, calx:A2020PerformanceTargets


Share
Period End2020-09-262020-06-272020-03-28
Value009.16
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue0.00.0100.0

srt:ExecutiveOfficer, calx:PerformanceBasedStockOptions, calx:A2021PerformanceTargets


Share
Period End2021-02-28
Value36.74
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue0.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriod us-gaap:PlanName

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriod

calx:A2017NonqualifiedEmployeeStockPurchasePlan


Share
Period End2020-12-312020-09-262020-06-272018-12-312018-09-292018-06-30
Value200000.0300000.0300000.0130750.0169250.0169250.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriod100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesPurchasedForAward us-gaap:PlanName

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesPurchasedForAward

calx:A2017NonqualifiedEmployeeStockPurchasePlan


Share
Period End2020-12-312020-09-262020-06-272018-12-312018-09-292018-06-30
Value200000.0300000.0300000.0130750.0165310.0169250.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesPurchasedForAward100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice


Share
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272019-06-292018-09-292018-06-302017-07-012015-09-262015-06-272014-09-272014-06-282013-09-282013-06-292012-09-29
Value7.389.360.259.727.635.425.476.145.625.496.196.734.946.173.430.57
Percentage of ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodSharesEmployeeStockOwnershipPlan us-gaap:AwardType

us-gaap:StockIssuedDuringPeriodSharesEmployeeStockOwnershipPlan

us-gaap:EmployeeStock


Stock
Period End2021-07-032021-04-032020-09-262020-06-272019-09-282019-06-29
Value200000.0200000.0200000.0400000.0500000.0500000.0
Percentage of StockIssuedDuringPeriodSharesEmployeeStockOwnershipPlan100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodSharesEmployeeStockOwnershipPlan us-gaap:AwardType, us-gaap:PlanName

us-gaap:EmployeeStock, calx:EmployeeStockPurchasePlan


Stock
Period End2020-12-31
Value600000.0
Percentage of StockIssuedDuringPeriodSharesEmployeeStockOwnershipPlan0.0

us-gaap:StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans

us-gaap:CommonStock


Stock
Period End2020-12-312020-09-262020-06-272019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-31
Value216000.0170000.0691000.0883000.0-8000.0939000.0-7000.0704000.0-14000.0807000.0-20000.0
Percentage of StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodSharesNewIssues us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodSharesNewIssues

us-gaap:CommonStock


Stock
Period End2020-12-312020-09-26
Value03220000.0
Percentage of StockIssuedDuringPeriodSharesNewIssues0.0100.0

us-gaap:StockIssuedDuringPeriodSharesShareBasedCompensation us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodSharesShareBasedCompensation

us-gaap:CommonStock


Stock
Period End2021-07-032021-04-032020-06-272020-03-28
Value349000.0729000.01515000.0180000.0
Percentage of StockIssuedDuringPeriodSharesShareBasedCompensation100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised

us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised


Stock
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302017-12-312017-09-302017-07-012016-12-312016-09-242016-06-252015-12-312015-09-262015-06-272014-12-312014-09-272014-06-282013-12-312013-09-282013-06-292012-12-312012-09-29
Value100000.0500000.088000.0200000.0600000.0200000.0-26000.007000.049000.043512.04993.07075.06000.003000.0688.0002013.06301.04334.0152130.043055.023916.09325.062033.071680.023638.033123.0
Percentage of StockIssuedDuringPeriodSharesStockOptionsExercised100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.00.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised us-gaap:StatementEquityComponents

us-gaap:CommonStock


Stock
Period End2020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-31
Value121000.0219000.0591000.0157000.020000.006000.049000.044000.05000.07000.01000.0
Percentage of StockIssuedDuringPeriodSharesStockOptionsExercised137.5109.598.578.5-76.90.085.7100.0101.1100.198.90.0

us-gaap:StockIssuedDuringPeriodValueEmployeeStockPurchasePlan

us-gaap:StockIssuedDuringPeriodValueEmployeeStockPurchasePlan


Stock
Period End2020-12-312020-09-262020-06-272019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-31
Value2787000.01645000.04712000.04276000.01000.04159000.003491000.0-30000.03837000.00
Percentage of StockIssuedDuringPeriodValueEmployeeStockPurchasePlan100.0100.0100.0100.0100.0100.00.0100.0100.0100.00.0

us-gaap:StockIssuedDuringPeriodValueEmployeeStockPurchasePlan us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stock
Period End2020-12-312020-09-262020-06-272019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-31
Value2781000.01641000.04695000.04253000.01000.04135000.003473000.0-29000.03816000.01000.0
Percentage of StockIssuedDuringPeriodValueEmployeeStockPurchasePlan99.899.899.699.5100.099.40.099.596.799.50.0

us-gaap:CommonStock


Stock
Period End2020-12-312020-09-262020-06-272019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-31
Value6000.04000.017000.023000.0024000.0018000.0-1000.021000.0-1000.0
Percentage of StockIssuedDuringPeriodValueEmployeeStockPurchasePlan0.20.20.40.50.00.60.00.53.30.50.0

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation


Stock
Period End2021-07-032021-04-032020-06-272020-03-28
Value4.1988.6399.2211.099
Percentage of StockIssuedDuringPeriodValueShareBasedCompensation100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stock
Period End2021-07-032021-04-032020-06-272020-03-28
Value4.198.629.1831.095
Percentage of StockIssuedDuringPeriodValueShareBasedCompensation99.899.899.699.6

us-gaap:CommonStock


Stock
Period End2021-07-032021-04-032020-06-272020-03-28
Value0.0080.0190.0380.004
Percentage of StockIssuedDuringPeriodValueShareBasedCompensation0.20.20.40.4

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised


Stock
Period End2020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-31
Value1243000.02133000.04509000.01099000.074000.0035000.0290000.0305000.027000.043000.08000.0
Percentage of StockIssuedDuringPeriodValueStockOptionsExercised100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stock
Period End2020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-31
Value1240000.02128000.04494000.01095000.0116000.0035000.0289000.0304000.027000.043000.08000.0
Percentage of StockIssuedDuringPeriodValueStockOptionsExercised99.899.899.799.6156.80.0100.099.799.7100.0100.0100.0

us-gaap:CommonStock


Stock
Period End2020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-31
Value3000.05000.015000.04000.00001000.01000.0000
Percentage of StockIssuedDuringPeriodValueStockOptionsExercised0.20.20.30.40.00.00.00.30.30.00.00.0

us-gaap:StockRepurchasedAndRetiredDuringPeriodValue us-gaap:StatementEquityComponents

us-gaap:StockRepurchasedAndRetiredDuringPeriodValue

us-gaap:AdditionalPaidInCapital


Stock
Period End2020-12-312020-09-26
Value0.039
Percentage of StockRepurchasedAndRetiredDuringPeriodValue0.0100.0

us-gaap:CommonStock


Stock
Period End2020-12-312020-09-26
Value0.00.134
Percentage of StockRepurchasedAndRetiredDuringPeriodValue0.00.3

us-gaap:TreasuryStock


Stock
Period End2020-12-312020-09-26
Value0.0-39.986
Percentage of StockRepurchasedAndRetiredDuringPeriodValue0.0-100.3

calx:AccruedCustomerRebates

calx:AccruedCustomerRebates


Accrued
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302011-12-31
Value3359000.03704000.08374000.05047000.06948000.07767000.07252000.05154000.04906000.05932000.06103000.01977000.01239000.0382000.0828000.0717000.01425000.01931000.02029000.01720000.01269000.0784000.01327000.01437000.01513000.0851000.0971000.0880000.0989000.0712000.0638000.0926000.01371000.01565000.01506000.01345000.01549000.0
Percentage of AccruedCustomerRebates100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

calx:AccruedEquipmentFinancingArrangementsCurrent

calx:AccruedEquipmentFinancingArrangementsCurrent


Accrued
Period End2020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312017-12-31
Value2925000.05160000.05296000.04618000.04044000.01745000.01720000.01715000.01778000.00
Percentage of AccruedEquipmentFinancingArrangementsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

calx:AccruedExcessAndObsoleteInventoryAtContractManufacturer

calx:AccruedExcessAndObsoleteInventoryAtContractManufacturer


Accrued
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302011-12-31
Value4002000.04213000.03992000.05136000.05723000.04234000.01925000.01357000.0654000.0856000.02667000.03307000.03254000.03400000.02430000.01800000.01979000.02415000.01327000.01084000.01190000.01038000.01011000.01237000.0878000.0821000.0888000.0481000.0541000.0702000.0756000.0941000.01343000.01361000.01357000.01745000.02026000.03784000.0
Percentage of AccruedExcessAndObsoleteInventoryAtContractManufacturer100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

calx:AccruedFreight

calx:AccruedFreight


Accrued
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312016-12-31
Value1543000.01892000.01955000.01070000.01054000.0883000.0808000.0658000.01021000.01031000.01187000.01276000.0918000.0695000.0593000.01198000.0
Percentage of AccruedFreight100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

calx:CashCashEquivalentsAndMarketableSecurities

calx:CashCashEquivalentsAndMarketableSecurities


Cash
Period End2021-07-032021-04-032020-12-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282013-12-31
Value175150133397050517861646473939997111877882
Percentage of CashCashEquivalentsAndMarketableSecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

calx:CashCashEquivalentsRestrictedCashAndMarketableSecurities

calx:CashCashEquivalentsRestrictedCashAndMarketableSecurities


Cash
Period End2020-12-312020-09-262019-12-31
Value13310447
Percentage of CashCashEquivalentsRestrictedCashAndMarketableSecurities100.0100.0100.0

calx:ContractWithCustomerAssetExpectedToBeBilledRemainderOfYearPercent

calx:ContractWithCustomerAssetExpectedToBeBilledRemainderOfYearPercent


Contract
Period End2021-07-032021-04-032020-12-312020-09-26
Value66.073.092.028.0
Percentage of ContractWithCustomerAssetExpectedToBeBilledRemainderOfYearPercent100.0100.0100.0100.0

calx:ContractwithCustomerAssetPriorPeriodNotRecognized

calx:ContractwithCustomerAssetPriorPeriodNotRecognized


Contractwith
Period End2021-07-032021-04-032020-09-262019-12-31
Value700000.01000000.0800000.0400000.0
Percentage of ContractwithCustomerAssetPriorPeriodNotRecognized100.0100.0100.0100.0

calx:EmployeeServiceSharebasedCompensationNonvestedAwardsCompensationCostNotyetRecognizedToBeRecognizedInYearThree

calx:EmployeeServiceSharebasedCompensationNonvestedAwardsCompensationCostNotyetRecognizedToBeRecognizedInYearThree


Employee
Period End2020-12-31
Value4000000.0
Percentage of EmployeeServiceSharebasedCompensationNonvestedAwardsCompensationCostNotyetRecognizedToBeRecognizedInYearThree100.0

calx:EmployeeServiceSharebasedCompensationNonvestedAwardsCompensationCostNotyetRecognizedToBeRecognizedInYearTwo

calx:EmployeeServiceSharebasedCompensationNonvestedAwardsCompensationCostNotyetRecognizedToBeRecognizedInYearTwo


Employee
Period End2020-12-31
Value5100000.0
Percentage of EmployeeServiceSharebasedCompensationNonvestedAwardsCompensationCostNotyetRecognizedToBeRecognizedInYearTwo100.0

calx:EmployeeServiceSharebasedCompensationNonvestedAwardsCompensationCostNotyetRecognizedToBeRecognizedNextTwelveMonth

calx:EmployeeServiceSharebasedCompensationNonvestedAwardsCompensationCostNotyetRecognizedToBeRecognizedNextTwelveMonth


Employee
Period End2020-12-31
Value10
Percentage of EmployeeServiceSharebasedCompensationNonvestedAwardsCompensationCostNotyetRecognizedToBeRecognizedNextTwelveMonth100.0

calx:LesseeOperatingLeaseLiabilityToBePaidAfterYearFour

calx:LesseeOperatingLeaseLiabilityToBePaidAfterYearFour


Lessee
Period End2021-07-032021-04-032020-09-26
Value158000.042000.02881000.0
Percentage of LesseeOperatingLeaseLiabilityToBePaidAfterYearFour100.0100.0100.0

calx:OperationsLiabilityCurrent

calx:OperationsLiabilityCurrent


Operations
Period End2020-12-312020-09-262020-06-272020-03-282019-12-312018-12-31
Value950000.01200000.01248000.01163000.01053000.01059000.0
Percentage of OperationsLiabilityCurrent100.0100.0100.0100.0100.0100.0

calx:OtherAssetsCapitalizedCloudImplementationCosts

calx:OtherAssetsCapitalizedCloudImplementationCosts


Other
Period End2020-12-312020-09-262020-06-272020-03-282019-12-312018-12-31
Value1287000.02068000.02895000.03638000.06089000.00
Percentage of OtherAssetsCapitalizedCloudImplementationCosts100.0100.0100.0100.0100.00.0

calx:ProductReturnReserveCurrent

calx:ProductReturnReserveCurrent


Product
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-31
Value2062000.02244000.01888000.01500000.01229000.0801000.0919000.01813000.0885000.0823000.0880000.0591000.0937000.0959000.00
Percentage of ProductReturnReserveCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

calx:RevenueShareObligationCurrent

calx:RevenueShareObligationCurrent


Revenue
Period End2021-07-032021-04-032020-12-31
Value3417000.03409000.02925000.0
Percentage of RevenueShareObligationCurrent100.0100.0100.0

calx:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrantAdditionalShares us-gaap:PlanName

calx:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrantAdditionalShares

calx:A2019EquityIncentiveAwardPlan


Share
Period End2021-07-032020-12-312020-09-262020-06-27
Value3800000.03500000.03500000.03500000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrantAdditionalShares100.0100.0100.0100.0

calx:SharebasedCompensationArrangementbySharebasedPaymentAwardOptionsOutstandingIntrinsicValueAmountPerShare

calx:SharebasedCompensationArrangementbySharebasedPaymentAwardOptionsOutstandingIntrinsicValueAmountPerShare


Sharebased
Period End2020-12-31
Value29.76
Percentage of SharebasedCompensationArrangementbySharebasedPaymentAwardOptionsOutstandingIntrinsicValueAmountPerShare100.0

calx:TaxesPayableCurrentExcludingAccruedIncomeTaxes

calx:TaxesPayableCurrentExcludingAccruedIncomeTaxes


Taxes
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312016-12-312016-09-242016-06-252016-03-262015-12-312014-12-31
Value4459000.04220000.03476000.03142000.02175000.02729000.02021000.01147000.01503000.01129000.01288000.01157000.01128000.01604000.01778000.0699000.0849000.0741000.0914000.0905000.0581000.0
Percentage of TaxesPayableCurrentExcludingAccruedIncomeTaxes100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccountsReceivableGrossCurrent

us-gaap:AccountsReceivableGrossCurrent


Accounts
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302011-12-31
Value8075707060674648605567687056814555665258504448494239314348454455637261575749
Percentage of AccountsReceivableGrossCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccruedProfessionalFeesCurrent

us-gaap:AccruedProfessionalFeesCurrent


Accrued
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302011-12-31
Value4.3473.7134.4973.5844.9215.7224.9965.0525.915.0416.067.3477.8775.3499.60412149.9528.2055.8873.7997.3922.8133.0162.8486.2355.863.4292.4411.831.6341.9711.8441.9471.742.1282.1211.741
Percentage of AccruedProfessionalFeesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent


Allowance
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302011-12-31
Value807000.01186000.01405000.01503000.01430000.0438000.0374000.0322000.0397000.0338000.0370000.0613000.0496000.0388000.0579000.0550000.0450000.0477000.0518000.0629000.0635000.0417000.0501000.0405000.0390000.0330000.0241000.0256000.0390000.0373000.0358000.0427000.0406000.0485000.0421000.0439000.0418000.0402000.0
Percentage of AllowanceForDoubtfulAccountsReceivableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:AssetsFairValueDisclosure

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring


Assets
Period End2021-07-032021-04-032020-12-312020-09-26
Value187310380
Percentage of AssetsFairValueDisclosure100.0100.0100.0100.0

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring


Assets
Period End2021-07-032021-04-03
Value13954
Percentage of AssetsFairValueDisclosure765.573.3

us-gaap:AssetsFairValueDisclosure us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring


Assets
Period End2021-07-032021-04-03
Value158128
Percentage of AssetsFairValueDisclosure865.5173.3

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax us-gaap:FinancialInstrument

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax

us-gaap:USGovernmentAgenciesDebtSecurities


Available
Period End2020-09-26
Value1000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax100.0

us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis us-gaap:FinancialInstrument

us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis

us-gaap:USGovernmentAgenciesDebtSecurities


Available
Period End2020-09-26
Value39
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis100.0

us-gaap:AvailableForSaleSecuritiesDebtSecurities

us-gaap:AvailableForSaleSecuritiesDebtSecurities


Available
Period End2021-07-032021-04-032020-12-312020-09-26
Value117645239
Percentage of AvailableForSaleSecuritiesDebtSecurities100.0100.0100.0100.0

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

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring, us-gaap:USGovernmentAgenciesDebtSecurities


Available
Period End2021-04-032020-12-312020-09-26
Value399269
Percentage of AvailableForSaleSecuritiesDebtSecurities62.3175.5175.0

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


Available
Period End2021-07-03
Value1.151
Percentage of AvailableForSaleSecuritiesDebtSecurities1.0

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


Available
Period End2021-07-03
Value3.109
Percentage of AvailableForSaleSecuritiesDebtSecurities2.7

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

us-gaap:FairValueMeasurementsRecurring, us-gaap:CorporateDebtSecurities


Available
Period End2021-07-03
Value1.151
Percentage of AvailableForSaleSecuritiesDebtSecurities1.0

us-gaap:FairValueMeasurementsRecurring, us-gaap:USGovernmentAgenciesDebtSecurities


Available
Period End2021-07-032021-04-03
Value3.10939
Percentage of AvailableForSaleSecuritiesDebtSecurities2.762.3

us-gaap:AvailableForSaleSecuritiesDebtSecurities us-gaap:FinancialInstrument

us-gaap:CommercialPaper


Available
Period End2021-07-032021-04-03
Value11424
Percentage of AvailableForSaleSecuritiesDebtSecurities97.337.7

us-gaap:USGovernmentAgenciesDebtSecurities


Available
Period End2021-07-032021-04-032020-12-312020-09-26
Value3.109395239
Percentage of AvailableForSaleSecuritiesDebtSecurities2.762.3100.0100.0

us-gaap:USGovernmentDebtSecurities


Available
Period End2020-12-31
Value52
Percentage of AvailableForSaleSecuritiesDebtSecurities100.0

us-gaap:CapitalizedContractCostGross

us-gaap:CapitalizedContractCostGross


Capitalized
Period End2021-07-032021-04-032020-12-312020-09-262018-12-31
Value2300000.01400000.0700000.0700000.0800000.0
Percentage of CapitalizedContractCostGross100.0100.0100.0100.0100.0

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

us-gaap:CashAndCashEquivalentsFairValueDisclosure

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


Cash
Period End2021-07-03
Value135
Percentage of CashAndCashEquivalentsFairValueDisclosure100.0

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


Cash
Period End2021-07-032021-04-032020-12-312020-09-262019-12-312019-09-282018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272013-12-31
Value183310100.0140.0143.7883.7769.1262.768.19715145.3841010161915302419
Percentage of CashAndCashEquivalentsFairValueDisclosure13.50.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CashAndCashEquivalentsFairValueDisclosure us-gaap:CashAndCashEquivalents, us-gaap:FairValueByMeasurementFrequency

us-gaap:CommercialPaper, us-gaap:FairValueMeasurementsRecurring


Cash
Period End2021-07-03
Value135
Percentage of CashAndCashEquivalentsFairValueDisclosure100.0

us-gaap:MoneyMarketFunds, us-gaap:FairValueMeasurementsRecurring


Cash
Period End2021-07-032021-04-032018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272013-12-31
Value18333.7883.7769.1262.768.19715145.3841010161915302419
Percentage of CashAndCashEquivalentsFairValueDisclosure13.50.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommercialPaper us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:CommercialPaper

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring


Commercial
Period End2021-04-03
Value54
Percentage of CommercialPaper100.0

us-gaap:CommercialPaper us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring


Commercial
Period End2021-04-03
Value54
Percentage of CommercialPaper100.0

us-gaap:CommonStockCapitalSharesReservedForFutureIssuance

us-gaap:CommonStockCapitalSharesReservedForFutureIssuance


Common
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value161411108.1099.2019.98610118.54610
Percentage of CommonStockCapitalSharesReservedForFutureIssuance100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CommonStockCapitalSharesReservedForFutureIssuance us-gaap:AwardType

us-gaap:EmployeeStock


Common
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value2.5963.21.552.4560.1191.1291.8912.5743.26
Percentage of CommonStockCapitalSharesReservedForFutureIssuance16.122.213.022.51.512.318.924.028.6

us-gaap:CommonStockCapitalSharesReservedForFutureIssuance us-gaap:AwardType, us-gaap:PlanName

us-gaap:EmployeeStock, calx:A2017NonqualifiedEmployeeStockPurchasePlan


Common
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value2.2742.0212.7640.5510.0
Percentage of CommonStockCapitalSharesReservedForFutureIssuance14.114.023.25.00.0

us-gaap:ContractWithCustomerAssetNet

us-gaap:ContractWithCustomerAssetNet


Contract
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-01-01
Value1400000.01900000.02300000.03800000.04000000.02900000.05000000.04800000.05300000.03900000.05900000.01500000.0
Percentage of ContractWithCustomerAssetNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerLiability

us-gaap:ContractWithCustomerLiability


Contract
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292017-12-31
Value45443935343735353633333433
Percentage of ContractWithCustomerLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerLiabilityNoncurrent

us-gaap:ContractWithCustomerLiabilityNoncurrent


Contract
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312017-12-31
Value212019191817181717181720
Percentage of ContractWithCustomerLiabilityNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerLiabilityNoncurrent us-gaap:DeferredRevenueArrangementType

calx:ExtendedWarranty


Contract
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312017-12-31
Value181718171617171717171720
Percentage of ContractWithCustomerLiabilityNoncurrent87.286.290.687.690.297.695.797.996.496.597.599.9

calx:ProductAndServices


Contract
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312017-12-31
Value2.7292.8011.8792.4171.7860.4230.790.3620.6340.6380.440.018
Percentage of ContractWithCustomerLiabilityNoncurrent12.813.89.412.49.82.44.32.13.63.52.50.1

us-gaap:DebtInstrumentInterestRateEffectivePercentage us-gaap:CreditFacility, us-gaap:LineOfCreditFacility

us-gaap:DebtInstrumentInterestRateEffectivePercentage

us-gaap:LetterOfCredit, calx:BankOfAmerica


Debt
Period End2020-09-262020-06-27
Value3.750.045
Percentage of DebtInstrumentInterestRateEffectivePercentage100.0100.0

us-gaap:RevolvingCreditFacility, calx:BankOfAmerica


Debt
Period End2020-12-31
Value3.75
Percentage of DebtInstrumentInterestRateEffectivePercentage0.0

us-gaap:DebtInstrumentInterestRateEffectivePercentage us-gaap:CreditFacility, us-gaap:LineOfCreditFacility, us-gaap:SubsequentEventType

us-gaap:LetterOfCredit, calx:BankOfAmerica, us-gaap:SubsequentEvent


Debt
Period End2020-07-01
Value0.0375
Percentage of DebtInstrumentInterestRateEffectivePercentage0.0

us-gaap:DebtWeightedAverageInterestRate us-gaap:ProductOrService

us-gaap:DebtWeightedAverageInterestRate

calx:ConsultingServices


Debt
Period End2020-12-312020-09-262020-06-272018-12-312017-12-31
Value6.36.30.0630.0650.069
Percentage of DebtWeightedAverageInterestRate100.0100.0100.0100.0100.0

us-gaap:DebtWeightedAverageInterestRate us-gaap:PropertyPlantAndEquipmentByType

calx:ResearchAndDevelopmentEquipment


Debt
Period End2020-12-312018-12-31
Value6.20.062
Percentage of DebtWeightedAverageInterestRate98.495.4

us-gaap:DeferredTaxAssetsDeferredIncome

us-gaap:DeferredTaxAssetsDeferredIncome


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value9.2198.4887.8157.928129.8229.9312138.804
Percentage of DeferredTaxAssetsDeferredIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsGoodwillAndIntangibleAssets

us-gaap:DeferredTaxAssetsGoodwillAndIntangibleAssets


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value-568000.0-111000.037000.064000.00
Percentage of DeferredTaxAssetsGoodwillAndIntangibleAssets100.0100.0100.0100.00.0

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsGross


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value189206203198239224221223231233
Percentage of DeferredTaxAssetsGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsOperatingLossCarryforwards

us-gaap:DeferredTaxAssetsOperatingLossCarryforwards


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value114135132134167167166168180182
Percentage of DeferredTaxAssetsOperatingLossCarryforwards100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsOther

us-gaap:DeferredTaxAssetsOther


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value-18000.0-10000.05000.023000.01124000.0528000.0498000.0450000.0294000.0118000.0
Percentage of DeferredTaxAssetsOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsPropertyPlantAndEquipment

us-gaap:DeferredTaxAssetsPropertyPlantAndEquipment


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value681000.01541000.01924000.01892000.02538000.01947000.01275000.02996000.02858000.03619000.0
Percentage of DeferredTaxAssetsPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value4821000.04761000.04447000.03100000.06159000.05198000.05138000.05570000.03592000.04734000.0
Percentage of DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value109.316107.933131213111114
Percentage of DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EmployeeRelatedLiabilitiesCurrent

us-gaap:EmployeeRelatedLiabilitiesCurrent


Employee
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302011-12-31
Value1615232019151920142119221618152319221921191713161615151414141313131212111012
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:EmployeeStock


Employee
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312013-09-282013-06-292013-03-302012-12-31
Value5.534.2083.8791.6890.7210.6240.6920.6620.30.60.30.74
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EmployeeStockOption


Employee
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312013-09-28
Value155.3275.0883.7663.6613.2675.1456.3917.3
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized282.2126.6131.2223.0507.8523.6743.5965.42433.3

us-gaap:RestrictedStockUnitsRSU


Employee
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-30
Value0.5181.2543.3378.43113141010121412151618
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized9.429.886.0499.21855.82251.31556.11640.64233.32366.74300.02062.20.00.0

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions us-gaap:AwardType

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions

us-gaap:EmployeeStock


Employee
Period End2021-07-032021-04-032020-09-262020-06-272020-03-282019-09-282019-06-292019-03-302018-09-292018-06-302018-03-312017-09-302017-07-012017-04-012016-09-242016-06-252016-03-262015-09-262015-06-272015-03-282014-09-272014-06-282014-03-29
Value0.30.81.10.30.20.20.60.20.20.50.20.20.70.20.20.70.20.20.50.30.20.60.3
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestrictedStockUnitsRSU


Employee
Period End2020-09-262020-06-272020-03-282019-09-282019-06-292019-03-302018-09-292018-06-302018-03-312017-09-302017-07-012017-04-012016-09-242016-06-252016-03-262015-09-262015-06-272015-03-282014-09-272014-06-282014-03-29
Value0.91.40.61.92.62.14.45.76.610111214161215161013129.3
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions81.8466.7300.0950.0433.31050.02200.01140.03300.05100.01657.16300.07300.02285.76300.07700.03280.03633.36500.02016.73100.0

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions us-gaap:AwardType, us-gaap:PlanName

us-gaap:EmployeeStock, calx:EmployeeStockPurchasePlan


Employee
Period End2020-12-31
Value0.4
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions0.0

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions


Employee
Period End2021-07-032021-04-032020-09-262020-06-272020-03-282019-09-282019-06-292019-03-302018-09-292018-06-302018-03-312017-09-30
Value312611117.52.93.44.23.33.23.73.4
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions us-gaap:PlanName

calx:A2017NonqualifiedEmployeeStockPurchasePlan


Employee
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-09-282019-06-292019-03-302018-09-292018-06-302018-03-312017-09-30
Value6.04.35.23.53.82.72.23.12.51.91.31.81.2
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions18.916.50.031.833.336.075.991.259.557.640.648.635.3

us-gaap:IntangibleAssetsCurrent us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:IntangibleAssetsCurrent

us-gaap:ComputerSoftwareIntangibleAsset


Intangible
Period End2020-09-26
Value13
Percentage of IntangibleAssetsCurrent100.0

us-gaap:InventoryFinishedGoodsNetOfReserves

us-gaap:InventoryFinishedGoodsNetOfReserves


Inventory
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302011-12-31
Value7672524136303942392939281724303538454238383945413837433940394432292933272941
Percentage of InventoryFinishedGoodsNetOfReserves100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InventoryRawMaterialsNetOfReserves

us-gaap:InventoryRawMaterialsNetOfReserves


Inventory
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302011-12-31
Value0.1820.0580.0340.1540.3830.2060.6563.6216.20717101.5542.092.2441.2111.0821.0281.5021.8272.0351.7912.0482.2092.2591.8392.7063.183.9465.4865.8456.5916.9297.5849.6729.3772.3513.5073.077
Percentage of InventoryRawMaterialsNetOfReserves100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths


Lessee
Period End2021-07-032021-04-032020-12-312020-09-26
Value3911000.03809000.03935000.03478000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths100.0100.0100.0100.0

us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear

us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear


Lessee
Period End2021-07-032021-04-032020-09-26
Value1905000.02903000.0922000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear100.0100.0100.0

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent


Operating
Period End2021-07-032021-04-032020-12-312020-09-26
Value6.66.76.77.0
Percentage of OperatingLeaseWeightedAverageDiscountRatePercent100.0100.0100.0100.0

us-gaap:OperatingLossCarryforwards us-gaap:IncomeTaxAuthority

us-gaap:OperatingLossCarryforwards

us-gaap:DomesticCountry


Operating
Period End2020-12-312019-12-312018-12-31
Value518608597
Percentage of OperatingLossCarryforwards100.0100.0100.0

us-gaap:StateAndLocalJurisdiction


Operating
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value110216189210132122119174318
Percentage of OperatingLossCarryforwards21.335.531.70.00.00.00.00.00.0

us-gaap:OtherAssetsMiscellaneousNoncurrent

us-gaap:OtherAssetsMiscellaneousNoncurrent


Other
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282018-12-31
Value2215000.02214000.01361000.01220000.01297000.01421000.01203000.01481000.01203000.0
Percentage of OtherAssetsMiscellaneousNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherLiabilities us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:OtherLiabilities

us-gaap:ComputerSoftwareIntangibleAsset


Other
Period End2021-07-032021-04-032020-12-312019-09-28
Value14141313
Percentage of OtherLiabilities100.0100.0100.0100.0

us-gaap:ProductWarrantyAccrual

us-gaap:ProductWarrantyAccrual


Product
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302012-03-312011-12-312011-09-242011-06-252011-03-262010-12-312009-12-31
Value9.9119.659.2088.5567.7327.437.2947.2847.918.1668.5478.668.1888.0978.7088.4549.265101211109.1529.5648.9849.3259.6239.5531010101011121111111111121213123.7894.213
Percentage of ProductWarrantyAccrual100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProductWarrantyAccrualClassifiedCurrent

us-gaap:ProductWarrantyAccrualClassifiedCurrent


Product
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-312016-09-242016-06-252016-03-262015-12-312015-09-262015-06-272015-03-282014-12-312014-09-272014-06-282014-03-292013-12-312013-09-282013-06-292013-03-302012-12-312012-09-292012-06-302011-12-31
Value9.9119.659.2088.5567.7327.437.2947.2847.918.1668.5478.668.1888.0978.7088.4549.265101211109.1529.5648.9849.3259.6239.5531010101011121111111112
Percentage of ProductWarrantyAccrualClassifiedCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PurchaseCommitmentRemainingMinimumAmountCommitted

us-gaap:PurchaseCommitmentRemainingMinimumAmountCommitted


Purchase
Period End2021-07-032021-04-032020-12-312020-09-26
Value140107123119
Percentage of PurchaseCommitmentRemainingMinimumAmountCommitted100.0100.0100.0100.0

us-gaap:PurchaseObligation us-gaap:ProductOrService

us-gaap:PurchaseObligation

calx:ConsultingServices


Purchase
Period End2020-09-262020-06-272019-12-312018-12-312017-12-31
Value5500000.05500000.05400000.03800000.04200000.0
Percentage of PurchaseObligation100.0100.0100.0100.0100.0

us-gaap:RestrictedCashCurrent

us-gaap:RestrictedCashCurrent


Restricted
Period End2020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-03-302018-12-312017-12-31
Value628000.0628000.0628000.0600000.0628000.0628000.0628000.0628000.00
Percentage of RestrictedCashCurrent100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:RestructuringReserve

us-gaap:RestructuringReserve


Restructuring
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312018-12-312017-12-312016-12-31
Value1111000.01230000.01376000.01542000.02474000.00028000.01417000.00
Percentage of RestructuringReserve100.0100.0100.0100.0100.00.00.0100.0100.00.0

us-gaap:RestructuringReserve us-gaap:RestructuringCostAndReserve

us-gaap:EmployeeSeverance


Restructuring
Period End2021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312018-12-312017-12-312017-09-302017-07-012017-04-012016-12-31
Value48000.0132000.0238000.01109000.0000975000.0195000.0600000.0699000.00
Percentage of RestructuringReserve3.99.615.444.80.00.00.068.80.00.00.00.0

us-gaap:FacilityClosing


Restructuring
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312018-12-312017-12-312016-12-31
Value1111000.01182000.01244000.01304000.01365000.00028000.0442000.00
Percentage of RestructuringReserve100.096.190.484.655.20.00.0100.031.20.0

us-gaap:RestructuringReserveCurrent

us-gaap:RestructuringReserveCurrent


Restructuring
Period End2021-07-032021-04-032020-12-312020-06-272019-12-312018-12-312018-09-292018-06-302018-03-312017-12-312017-09-302017-07-012017-04-012016-12-31
Value1741000.0323000.0408000.01383000.0028000.0595000.01764000.04927000.01417000.0195000.0600000.0699000.00
Percentage of RestructuringReserveCurrent100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:RevenueRemainingPerformanceObligation

us-gaap:RevenueRemainingPerformanceObligation


Revenue
Period End2021-07-032021-04-032020-12-312020-09-26
Value92757169
Percentage of RevenueRemainingPerformanceObligation100.0100.0100.0100.0

us-gaap:RevenueRemainingPerformanceObligationPercentage

us-gaap:RevenueRemainingPerformanceObligationPercentage


Revenue
Period End2021-07-032021-04-032020-12-312020-09-26
Value36.039.040.043.0
Percentage of RevenueRemainingPerformanceObligationPercentage100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber

us-gaap:RestrictedStockUnitsRSU


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value127000.0334000.0788000.01726000.02598000.02469000.01734000.01506000.01762000.01775000.03426000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue

us-gaap:RestrictedStockUnitsRSU


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value10.716.717.267.537.868.649.5311.0411.6714.27
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized

us-gaap:EmployeeStock


Share
Period End2021-07-032021-07-022019-09-282019-06-292019-05-312019-04-302018-12-312017-12-31
Value119.87.37.39.87.37.37.3
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized us-gaap:PlanName

calx:A2017NonqualifiedEmployeeStockPurchasePlan


Share
Period End2021-07-032020-05-312019-12-312018-12-312017-12-312017-05-17
Value5.54.73.53.51.03.5
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized49.50.00.047.913.70.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant us-gaap:PlanName

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant

calx:A2017NonqualifiedEmployeeStockPurchasePlan


Share
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-09-282019-06-292019-03-302018-09-292018-06-30
Value2900000.02300000.02300000.02500000.02500000.01600000.02000000.02000000.02800000.02900000.02900000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

calx:A2019EquityIncentiveAwardPlan


Share
Period End2021-07-032021-04-032020-12-312020-09-262020-06-272020-03-282019-12-312019-09-282019-06-292019-05-31
Value7000000.03600000.04300000.04900000.05000000.02400000.02000000.03000000.02600000.01700000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant241.4156.5187.0196.0200.0150.00.0150.0130.00.0

calx:A2019Plan


Share
Period End2020-12-31
Value4344000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant188.9

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber


Share
Period End2020-12-31
Value3171000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice


Share
Period End2020-12-31
Value7.3
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue


Share
Period End2020-12-31
Value136
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue


Share
Period End2020-12-31
Value133
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber


Share
Period End2020-12-31
Value6629000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice


Share
Period End2020-12-31
Value9.63
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice100.0

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1


Sharebased
Period End2020-12-31
Value71
Percentage of SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1100.0

us-gaap:TaxCreditCarryforwardAmount

us-gaap:TaxCreditCarryforwardAmount


Tax
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value49474643362725222019
Percentage of TaxCreditCarryforwardAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TaxCreditCarryforwardAmount us-gaap:IncomeTaxAuthority

calx:CaliforniaState


Tax
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value3836353330252322
Percentage of TaxCreditCarryforwardAmount76.076.574.777.584.191.594.297.7

calx:OtherState


Tax
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value3.13.03.03.23.02.22.11.8
Percentage of TaxCreditCarryforwardAmount6.26.36.47.48.38.08.48.0

us-gaap:DomesticCountry


Tax
Period End2020-12-312019-12-312018-12-31
Value373535
Percentage of TaxCreditCarryforwardAmount74.674.075.5

us-gaap:ValuationAllowancesAndReservesBalance us-gaap:ValuationAllowancesAndReservesType

us-gaap:ValuationAllowancesAndReservesBalance

calx:ProductReturnReserve


Valuation
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value1888000.0919000.0880000.0822000.0938000.0663000.0508000.0764000.01740000.0835000.0551000.01199000.0
Percentage of ValuationAllowancesAndReservesBalance100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AllowanceForCreditLoss


Valuation
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value1405000.0374000.0370000.0579000.0518000.0501000.0
Percentage of ValuationAllowancesAndReservesBalance74.440.742.070.455.275.6

Line plots across dimensions of each concept


COGS Ratio
us-gaap:ProductOrService
(None,)
C O G S  Ratious-gaap: Product Or Service
TTM Greenblatt ROC
_
(None,)
T T M  Greenblatt  R O C_
us-gaap:AllocatedShareBasedCompensationExpense
us-gaap:IncomeStatementLocation
(None,)
Allocated Share Based Compensation Expenseus-gaap: Income Statement Location
us-gaap:CostOfGoodsAndServicesSold
us-gaap:ProductOrService
(None,)
Cost Of Goods And Services Soldus-gaap: Product Or Service
us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax
us-gaap:StatementGeographical
(None,)
Revenue From Contract With Customer Including Assessed Taxus-gaap: Statement Geographical
us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax
us-gaap:ProductOrService
(None,)
Revenue From Contract With Customer Including Assessed Taxus-gaap: Product Or Service
us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents
(None,)
Stockholders Equityus-gaap: Statement Equity Components
us-gaap:CashAndCashEquivalentsAtCarryingValue
us-gaap:CashAndCashEquivalents
(None,)
Cash And Cash Equivalents At Carrying Valueus-gaap: Cash And Cash Equivalents
us-gaap:PropertyPlantAndEquipmentGross
us-gaap:PropertyPlantAndEquipmentByType
(None,)
Property Plant And Equipment Grossus-gaap: Property Plant And Equipment By Type
us-gaap:PropertyPlantAndEquipmentNet
us-gaap:StatementGeographical
(None,)
Property Plant And Equipment Netus-gaap: Statement Geographical
us-gaap:ContractWithCustomerLiabilityCurrent
us-gaap:DeferredRevenueArrangementType
(None,)
Contract With Customer Liability Currentus-gaap: Deferred Revenue Arrangement Type
us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents
(None,)
Stockholders Equityus-gaap: Statement Equity Components
us-gaap:StockIssuedDuringPeriodValueNewIssues
us-gaap:StatementEquityComponents
(None,)
Stock Issued During Period Value New Issuesus-gaap: Statement Equity Components
us-gaap:ShareBasedCompensation
us-gaap:TitleOfIndividual, us-gaap:AwardType, us-gaap:PlanName
('srt:ExecutiveOfficer', 'calx:PerformanceBasedStockOptions', None)
Share Based Compensationus-gaap: Title Of Individual, us-gaap: Award Type, us-gaap: Plan Name