CABO


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

Table of contents



us-gaap:CommonStockValue
us-gaap:AwardType, us-gaap:IncomeStatementLocation
us-gaap:AllocatedShareBasedCompensationExpense
us-gaap:IncomeStatementLocation

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:CostsAndExpenses

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxesPaidNet

us-gaap:InterestExpense
us-gaap:DebtInstrument
us-gaap:InterestExpenseDebt

us-gaap:InterestPaidNet

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted

us-gaap:OperatingIncomeLoss
us-gaap:DerivativeInstrumentRisk
us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax
us-gaap:ProductOrService

us-gaap:SellingGeneralAndAdministrativeExpense

us-gaap:Assets

us-gaap:Liabilities

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents

us-gaap:AssetsCurrent

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:AccountsReceivableNetCurrent

us-gaap:OtherAssetsCurrent

us-gaap:PrepaidExpenseAndOtherAssetsCurrent

us-gaap:PropertyPlantAndEquipmentGross
us-gaap:PropertyPlantAndEquipmentByType

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AmortizationOfIntangibleAssets
us-gaap:BusinessAcquisition

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:LongTermInvestments

us-gaap:Goodwill
us-gaap:BusinessAcquisition

us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill
us-gaap:IndefiniteLivedIntangibleAssetsByMajorClass

us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:FiniteLivedIntangibleAssetsNet
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:OperatingLeaseRightOfUseAsset
us-gaap:BalanceSheetLocation

us-gaap:OtherAssetsNoncurrent

us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent
us-gaap:BalanceSheetLocation
us-gaap:AccountsPayableCurrent

us-gaap:ContractWithCustomerLiabilityCurrent

us-gaap:LiabilitiesCurrent
us-gaap:BalanceSheetLocation
us-gaap:OperatingLeaseLiabilityCurrent
us-gaap:BalanceSheetLocation
us-gaap:OtherAccruedLiabilitiesCurrent
us-gaap:BalanceSheetLocation
us-gaap:TaxesPayableCurrent

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

us-gaap:DeferredFinanceCostsNoncurrentNet

us-gaap:LongTermDebtAndCapitalLeaseObligations

us-gaap:DeferredIncomeTaxLiabilitiesNet

us-gaap:OtherLiabilitiesNoncurrent
us-gaap:BalanceSheetLocation
us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive
us-gaap:BalanceSheetLocation
us-gaap:OperatingLeaseLiability

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents

us-gaap:CommonStockValue

us-gaap:AdditionalPaidInCapital

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax
us-gaap:StatementEquityComponents

us-gaap:TreasuryStockValue

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:AmortizationOfFinancingCosts
us-gaap:DebtInstrument

us-gaap:DepreciationDepletionAndAmortization

us-gaap:IncreaseDecreaseInAccountsReceivable

us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:ShareBasedCompensation

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:PaymentsToAcquireInvestments
us-gaap:InvestmentType, us-gaap:SubsequentEventType

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:ProceedsFromIssuanceOfLongTermDebt
us-gaap:CreditFacility, us-gaap:LongtermDebtType
us-gaap:StatementScenario, us-gaap:BusinessAcquisition, us-gaap:LineOfCreditFacility

us-gaap:RepaymentsOfLongTermDebt
us-gaap:CreditFacility, us-gaap:LineOfCreditFacility, us-gaap:LongtermDebtType
us-gaap:CreditFacility, us-gaap:LineOfCreditFacility, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType

us-gaap:PaymentsOfDividends

us-gaap:Dividends
us-gaap:StatementEquityComponents
us-gaap:DebtInstrument
us-gaap:DebtInstrumentInterestRateStatedPercentage
us-gaap:DebtInstrument, us-gaap:SubsequentEventType

us-gaap:EffectiveIncomeTaxRateContinuingOperations

us-gaap:DeferredTaxLiabilities

us-gaap:DeferredTaxAssetsNet

us-gaap:DeferredTaxAssetsValuationAllowance
us-gaap:BusinessAcquisition
cabo:BusinessAcquisitionProFormaAdjustmentsAcquisitionCosts
us-gaap:BusinessAcquisition
cabo:BusinessAcquisitionProFormaAdjustmentsDepreciationAndAmortization
us-gaap:BusinessAcquisition
cabo:BusinessAcquisitionProFormaAdjustmentsGainOnStepAcquisition
us-gaap:BusinessAcquisition
cabo:BusinessAcquisitionProFormaAdjustmentsIncomeTaxProvision
us-gaap:BusinessAcquisition
cabo:BusinessAcquisitionProFormaAdjustmentsInterestExpense
us-gaap:BusinessAcquisition
cabo:BusinessCombinationStepAcquisitionEquityInterestInAcquireeCarryingValue

cabo:ChangeInAccruedExpensesRelatedToCapitalExpenditures
us-gaap:CreditFacility, us-gaap:LongtermDebtType
cabo:DebtInstrumentPrepaymentPenaltyPrepaidWithinSixMonthsPercent
us-gaap:CreditFacility, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType
us-gaap:DebtInstrument
cabo:DebtInstrumentRedemptionPricePercentageOfPrincipalAmountRedeemedNotExceedingTheNetCashProceedsFromOneOrMoreEquityOfferingsAtARedemptionPriceEqualTo104OfThePrincipalAmount

cabo:EffectiveIncomeTaxRateReconciliationImpactOfReversalOfDeferredTaxLiabilityAndPreExistingEquityInvestment

cabo:EffectiveIncomeTaxRateReconciliationNetOperatingLossCarrybackProvisionOfCaresAct

cabo:EffectiveIncomeTaxRateReconciliationNetOperatingLossCarrybackProvisionOfTheCaresAct

cabo:FairValueAdjustmentCallAndPutOptions

cabo:IncomeLossFromContinuingOperationsNetOfTaxBeforeEquityMethodInvestments

cabo:IncomeTaxBenefitCaresAct
us-gaap:CreditFacility, us-gaap:LineOfCreditFacility
cabo:LineOfCreditFacilityIncreaseDecreaseInMaximumBorrowingCapacity
us-gaap:CreditFacility, us-gaap:LineOfCreditFacility, us-gaap:SubsequentEventType
us-gaap:BusinessAcquisition, us-gaap:LineOfCreditFacility, us-gaap:LongtermDebtType
cabo:LoanCommitmentTerminationAmount
us-gaap:CreditFacility, us-gaap:LongtermDebtType
cabo:LongTermDebtAmortizationRate
us-gaap:CreditFacility, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType

cabo:OperatingExpensesExcludingDepreciationAndAmortization

cabo:OriginationOfNotesReceivable

cabo:OtherComprehensiveIncomeLossDeferredGainLossOnCashFlowHedgesAndOtherNetOfTax
us-gaap:CumulativeEffectPeriodOfAdoption
us-gaap:CumulativeEffectPeriodOfAdoption, us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents
us-gaap:AwardType
cabo:SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueExercised
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee
us-gaap:AdjustmentForAmortization

us-gaap:AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation
us-gaap:StatementEquityComponents

us-gaap:AllowanceForDoubtfulAccountsReceivableRecoveries

us-gaap:AllowanceForDoubtfulAccountsReceivableWriteOffs
us-gaap:DebtInstrument
us-gaap:AmortizationOfDebtDiscountPremium

us-gaap:AmortizationOfFinancingCostsAndDiscounts
us-gaap:BusinessAcquisition
us-gaap:BusinessAcquisitionsProFormaNetIncomeLoss
us-gaap:BusinessAcquisition
us-gaap:BusinessAcquisitionsProFormaRevenue

us-gaap:BusinessCombinationAcquisitionRelatedCosts
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationConsiderationTransferredIncludingEquityInterestInAcquireeHeldPriorToCombination1
us-gaap:StatementScenario, us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationConsiderationTransferredLiabilitiesIncurred
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationStepAcquisitionEquityInterestInAcquireeFairValue1
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGain

us-gaap:CapitalizedContractCostAmortization

us-gaap:ContractWithCustomerLiabilityRevenueRecognized
us-gaap:CreditFacility, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType, us-gaap:VariableRate
us-gaap:DebtInstrumentBasisSpreadOnVariableRate1
us-gaap:CreditFacility, us-gaap:LongtermDebtType, us-gaap:VariableRate
us-gaap:Range, us-gaap:CreditFacility, us-gaap:LongtermDebtType, us-gaap:VariableRate
us-gaap:DebtInstrument
us-gaap:DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger
us-gaap:DebtInstrument
us-gaap:DebtInstrumentRedemptionPricePercentage
us-gaap:StatementScenario, us-gaap:DebtInstrument
us-gaap:DebtInstrument
us-gaap:DebtInstrumentRedemptionPricePercentageOfPrincipalAmountRedeemed

us-gaap:Depreciation

us-gaap:DepreciationAndAmortization

us-gaap:EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount

us-gaap:EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense

us-gaap:GainLossOnDispositionOfAssets1

us-gaap:GainLossOnSaleOfBusiness

us-gaap:GainLossOnSaleOfPropertyPlantEquipment
us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations
us-gaap:GoodwillWrittenOffRelatedToSaleOfBusinessUnit

us-gaap:IncomeLossFromEquityMethodInvestments
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

us-gaap:IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance

us-gaap:IncomeTaxReconciliationStateAndLocalIncomeTaxes

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities

us-gaap:IncreaseDecreaseInContractWithCustomerLiability

us-gaap:IncreaseDecreaseInDeferredIncomeTaxes

us-gaap:IncreaseDecreaseInIncomeTaxesReceivable

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets
us-gaap:DebtInstrument
us-gaap:InterestExpenseDebtExcludingAmortization

us-gaap:InterestOnConvertibleDebtNetOfTax
us-gaap:DerivativeInstrumentRisk
us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax
us-gaap:DerivativeInstrumentRisk
us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax
us-gaap:DerivativeInstrumentRisk, us-gaap:IncomeStatementLocation
us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax

us-gaap:PaymentsOfDebtIssuanceCosts

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation
us-gaap:BusinessAcquisition
us-gaap:PaymentsToAcquireBusinessesGross
us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType

us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:PaymentsToAcquireEquityMethodInvestments

us-gaap:ProceedsFromSaleAndCollectionOfNotesReceivable

us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment

us-gaap:ProvisionForDoubtfulAccounts
us-gaap:BusinessAcquisition
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate

us-gaap:TreasuryStockSharesAcquired

us-gaap:TreasuryStockValueAcquiredCostMethod
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:DerivativeInstrumentRisk
us-gaap:UnrealizedGainLossOnDerivatives

us-gaap:WriteOffOfDeferredDebtIssuanceCost

cabo:AssetsHeldForSaleNoncurrent
us-gaap:BusinessAcquisition
cabo:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayableAndAccruedLiabilities

cabo:ContractualObligationFranchiseAgreementsNonperformance
us-gaap:DebtInstrument
cabo:DebtInstrumentCovenantRepurchasePercentageOfPrinciple

cabo:DeferredCommissionsCurrent

cabo:DeferredCommissionsNoncurrent

cabo:DeferredTaxAssetsLeaseLiabilities
us-gaap:StatementScenario, us-gaap:BusinessAcquisition
cabo:EnterpriseValue

cabo:EquitySecuritiesWithoutReadilyDeterminableFairValueCostMethodInvestmentAmount
us-gaap:InvestmentType

cabo:FinitelivedIntangibleAssetExpectedAmortizationAfterYearFour

cabo:FinitelivedIntangibleAssetsAmortizationExpenseAfterYearFour
us-gaap:BalanceSheetLocation
cabo:FranchiseFeesCurrent
us-gaap:InvestmentType, us-gaap:SubsequentEventType
cabo:InvestmentOwnershipPercentage

cabo:LesseeOperatingLeaseAndFinanceLeaseLiabilityToBePaid

cabo:LesseeOperatingLeaseAndFinanceLeaseLiabilityToBePaidAfterYearFive

cabo:LesseeOperatingLeaseAndFinanceLeaseLiabilityToBePaidYearFive

cabo:LesseeOperatingLeaseAndFinanceLeaseLiabilityToBePaidYearFour

cabo:LesseeOperatingLeaseAndFinanceLeaseLiabilityToBePaidYearOne

cabo:LesseeOperatingLeaseAndFinanceLeaseLiabilityToBePaidYearThree

cabo:LesseeOperatingLeaseAndFinanceLeaseLiabilityToBePaidYearTwo
us-gaap:CreditFacility, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType
cabo:LongTermDebtAmortizationRateFirstTwelveMonths
us-gaap:CreditFacility, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType
cabo:LongTermDebtAmortizationRateYearFive
us-gaap:CreditFacility, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType
cabo:LongTermDebtAmortizationRateYearFour
us-gaap:CreditFacility, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType
cabo:LongTermDebtAmortizationRateYearThree
us-gaap:CreditFacility, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType
cabo:LongTermDebtAmortizationRateYearTwo

cabo:LongtermDebtMaturityAfterYearFour
us-gaap:IncomeTaxAuthority
cabo:OperatingLossCarryforwardsAfterTaxEffects
us-gaap:CreditFacility
cabo:OptionalAdditionalAvailableCreditFacilities

cabo:PrepaidRepairsAndMaintenance

cabo:PrepaidSoftware

cabo:PrepaidSoftwareImplementationCostsCurrent
us-gaap:BalanceSheetLocation
cabo:ProgrammingCostsCurrent
us-gaap:AwardType
cabo:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueVestedAndExercisable

cabo:TransitionServicesLabilitiesCurrent

us-gaap:AccountsAndOtherReceivablesNetCurrent
us-gaap:BalanceSheetLocation
us-gaap:AccruedInsuranceCurrent

us-gaap:AllowanceForDoubtfulAccountsReceivable

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent
us-gaap:BalanceSheetLocation
us-gaap:BankOverdrafts
us-gaap:BusinessAcquisition
us-gaap:BusinessAcquisitionPercentageOfVotingInterestsAcquired
us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType
us-gaap:StatementScenario, us-gaap:BusinessAcquisition
us-gaap:BusinessAcquisition
us-gaap:BusinessAcquisitionPurchasePriceAllocationGoodwillExpectedTaxDeductibleAmount
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesDeferredRevenue
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesLongTermDebt
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilities
us-gaap:BusinessAcquisition, us-gaap:IndefiniteLivedIntangibleAssetsByMajorClass
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIndefiniteLivedIntangibleAssets
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill
us-gaap:BusinessAcquisition, us-gaap:FiniteLivedIntangibleAssetsByMajorClass
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles
us-gaap:BusinessAcquisition, us-gaap:IndefiniteLivedIntangibleAssetsByMajorClass
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesLongTermDebt
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationStepAcquisitionEquityInterestInAcquireePercentage
us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:CashAndCashEquivalentsFairValueDisclosure

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations

us-gaap:ContractWithCustomerAssetNet
us-gaap:BalanceSheetLocation
us-gaap:ContractWithCustomerLiabilityNoncurrent

us-gaap:ContractualObligation

us-gaap:ContractualObligationDueAfterFifthYear

us-gaap:ContractualObligationDueInFifthYear

us-gaap:ContractualObligationDueInFourthYear

us-gaap:ContractualObligationDueInNextTwelveMonths

us-gaap:ContractualObligationDueInSecondYear

us-gaap:ContractualObligationDueInThirdYear
us-gaap:CreditFacility
us-gaap:DebtInstrumentCarryingAmount
us-gaap:CreditFacility, us-gaap:LongtermDebtType
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:CreditFacility
us-gaap:DebtInstrumentFaceAmount
us-gaap:CreditFacility, us-gaap:LineOfCreditFacility, us-gaap:LongtermDebtType
us-gaap:CreditFacility, us-gaap:LineOfCreditFacility, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType
us-gaap:CreditFacility, us-gaap:LongtermDebtType
us-gaap:CreditFacility, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType
us-gaap:DebtInstrument
us-gaap:DebtInstrument, us-gaap:SubsequentEventType
us-gaap:CreditFacility, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentInterestRateEffectivePercentage

us-gaap:DebtInstrumentUnamortizedDiscount
us-gaap:DebtInstrument
us-gaap:BalanceSheetLocation
us-gaap:DeferredCompensationLiabilityClassifiedNoncurrent

us-gaap:DeferredFinanceCostsNet
us-gaap:BalanceSheetLocation, us-gaap:CreditFacility
us-gaap:BalanceSheetLocation, us-gaap:DebtInstrument
us-gaap:DebtInstrument

us-gaap:DeferredIncomeTaxLiabilities

us-gaap:DeferredTaxAssetsCapitalLossCarryforwards

us-gaap:DeferredTaxAssetsDerivativeInstruments

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsOperatingLossCarryforwards

us-gaap:DeferredTaxAssetsOther

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBonuses

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsOther

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsReserves

us-gaap:DeferredTaxLiabilitiesGoodwillAndIntangibleAssets

us-gaap:DeferredTaxLiabilitiesInvestments

us-gaap:DeferredTaxLiabilitiesLeasingArrangements

us-gaap:DeferredTaxLiabilitiesOther

us-gaap:DeferredTaxLiabilitiesPrepaidExpenses

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment
us-gaap:BalanceSheetLocation
us-gaap:Deposits
us-gaap:DerivativeInstrumentRisk, us-gaap:OptionIndexedToIssuersEquityType
us-gaap:DerivativeAssetFairValueGrossLiability
us-gaap:DerivativeInstrumentRisk, us-gaap:OptionIndexedToIssuersEquityType
us-gaap:DerivativeFairValueOfDerivativeAsset
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship
us-gaap:DerivativeFixedInterestRate
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship
us-gaap:DerivativeLiabilities
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:BalanceSheetLocation
us-gaap:DerivativeLiabilitiesCurrent
us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship

us-gaap:DerivativeLiabilitiesNoncurrent
us-gaap:BalanceSheetLocation
us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship
us-gaap:DerivativeInstrumentRisk, us-gaap:MeasurementInputType
us-gaap:DerivativeLiabilityMeasurementInput

us-gaap:DueFromRelatedPartiesCurrent
us-gaap:BalanceSheetLocation
us-gaap:EmployeeRelatedLiabilitiesCurrent
us-gaap:AwardType
us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:EquityMethodInvestmentAggregateCost
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:StatementScenario
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee
us-gaap:EquityMethodInvestmentDifferenceBetweenCarryingAmountAndUnderlyingEquity
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:EquityMethodInvestmentOwnershipPercentage
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:StatementScenario

us-gaap:EquityMethodInvestments
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:EquitySecuritiesWithoutReadilyDeterminableFairValueAmount

us-gaap:FinanceLeaseLiability
us-gaap:BalanceSheetLocation
us-gaap:FinanceLeaseLiabilityCurrent
us-gaap:BalanceSheetLocation
us-gaap:FinanceLeaseLiabilityNoncurrent

us-gaap:FinanceLeaseLiabilityPaymentsDue

us-gaap:FinanceLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:FinanceLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFive

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFour

us-gaap:FinanceLeaseLiabilityPaymentsDueYearThree

us-gaap:FinanceLeaseLiabilityPaymentsDueYearTwo

us-gaap:FinanceLeaseLiabilityUndiscountedExcessAmount
us-gaap:BalanceSheetLocation
us-gaap:FinanceLeaseRightOfUseAsset

us-gaap:FinanceLeaseRightOfUseAssetBeforeAccumulatedAmortization

us-gaap:FinanceLeaseWeightedAverageDiscountRatePercent

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo

us-gaap:FiniteLivedIntangibleAssetsGross
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
us-gaap:GuaranteeObligationsByNature
us-gaap:GuaranteeObligationsMaximumExposure

us-gaap:HostingArrangementServiceContractImplementationCostCapitalizedAfterAccumulatedAmortization

us-gaap:HostingArrangementServiceContractImplementationCostCapitalizedBeforeAccumulatedAmortization

us-gaap:IncomeTaxesReceivable

us-gaap:InterestPayableCurrent

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths
us-gaap:CreditFacility, us-gaap:DebtInstrument, us-gaap:LineOfCreditFacility
us-gaap:LettersOfCreditOutstandingAmount
us-gaap:CreditFacility, us-gaap:LineOfCreditFacility
us-gaap:LineOfCredit
us-gaap:CreditFacility, us-gaap:LineOfCreditFacility, us-gaap:ShortTermDebtType
us-gaap:CreditFacility, us-gaap:LineOfCreditFacility
us-gaap:LineOfCreditFacilityInterestRateAtPeriodEnd
us-gaap:CreditFacility, us-gaap:LineOfCreditFacility, us-gaap:ShortTermDebtType
us-gaap:CreditFacility, us-gaap:LineOfCreditFacility
us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity
us-gaap:CreditFacility, us-gaap:LineOfCreditFacility, us-gaap:SubsequentEventType
us-gaap:CreditFacility, us-gaap:DebtInstrument, us-gaap:LineOfCreditFacility
us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity
us-gaap:CreditFacility, us-gaap:LineOfCreditFacility

us-gaap:LongTermDebtAndCapitalLeaseObligationsCurrent

us-gaap:LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByLiabilityClass, us-gaap:FairValueByMeasurementBasis
us-gaap:LongTermDebtFairValue

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent

us-gaap:OtherAssetsMiscellaneousNoncurrent

us-gaap:OtherCommitment

us-gaap:OtherCommitmentDueAfterFifthYear

us-gaap:OtherCommitmentDueInFifthYear

us-gaap:OtherCommitmentDueInFourthYear

us-gaap:OtherCommitmentDueInNextTwelveMonths

us-gaap:OtherCommitmentDueInSecondYear

us-gaap:OtherCommitmentDueInThirdYear

us-gaap:OtherReceivablesNetCurrent
us-gaap:BalanceSheetLocation
us-gaap:OtherSundryLiabilitiesNoncurrent

us-gaap:PrepaidInsurance

us-gaap:PrepaidRent

us-gaap:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization

us-gaap:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization

us-gaap:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization

us-gaap:PurchaseObligation

us-gaap:PurchaseObligationDueInFifthYear

us-gaap:PurchaseObligationDueInFourthYear

us-gaap:PurchaseObligationDueInNextTwelveMonths

us-gaap:PurchaseObligationDueInSecondYear

us-gaap:PurchaseObligationDueInThirdYear
us-gaap:AwardType
us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueOutstanding

Plots across concepts


IncomeStatement
Income Loss From Continuing Operations 
Before Income Taxes Extraordinary Items Noncontrolling Interest
Expenses
Income Tax Expense Benefit
Balance Sheet
Operating Lease Right Of Use Asset
Assets
Operating Lease Right Of Use Asset
Current Assets
Other Assets Current
NonCurrent Assets
Operating Lease Right Of Use Asset
PropertyPlantAndEquipmentNet
Property Plant And Equipment Net
Liabilities
Liabilities Current
Current Liabilities
Contract With Customer Liability Current
Noncurrent Liabilities
Other Liabilities Noncurrent
Stockholders Equity
Accumulated Other Comprehensive Income Loss Net Of Tax
CashFlow
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInOperatingActivities
Increase Decrease In Prepaid Deferred Expense And Other Assets
NetCashProvidedByUsedInInvestingActivities
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInFinancingActivities
Repayments Of Long Term Debt
LesseeOperatingLeaseLiabilityPaymentsDue
Lessee Operating Lease Liability Payments Due Year Four
FiniteLivedIntangibleAssets
Finite Lived Intangible Assets Accumulated Amortization
AccountsReceivable
Allowance For Doubtful Accounts Receivable Current

Tables

  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
us-gaap:CommonStockValue █████▁▁▁▁▁▁▁▁▁▃▃▁▁0.0620.0620.0620.0620.0620.0590.0590.0590.0590.0590.0590.0590.0590.0590.060.060.0590.059
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
 TTM Greenblatt ROC _ _▄▃█▃▃▃▃▂▂▁▂▁▂▁▁▁▁▁115.409102.346189.78496.13190.70992.72688.50780.13374.11467.69769.26463.31970.66864.66159.01861.89858.64760.353
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
 us-gaap:AllocatedShareBasedCompensationExpense us-gaap:AwardType,us-gaap:IncomeStatementLocation us-gaap:RestrictedStock,us-gaap:SellingGeneralAndAdministrativeExpenses█▅▅▄▃▃▂▁▁4.5493.4243.2193.0722.6782.5062.3092.0061.85NANANANANANANANANA
 us-gaap:AllocatedShareBasedCompensationExpense us-gaap:AwardType,us-gaap:IncomeStatementLocation us-gaap:StockAppreciationRightsSARS,us-gaap:SellingGeneralAndAdministrativeExpenses▁▁▃▂▂▁▃▆█0.730.7030.8590.7950.7480.7150.831.0521.232NANANANANANANANANA
 us-gaap:AllocatedShareBasedCompensationExpense us-gaap:IncomeStatementLocation us-gaap:SellingGeneralAndAdministrativeExpenses█▅▅▅▄▃▃▃▃▃▃▁▁▁▂▃▁▁5.2794.1274.0783.8673.4263.23.13.13.13.03.22.42.52.32.83.12.42.4
us-gaap:ComprehensiveIncomeNetOfTax ▆▇▇▅▄▁▅▃▂▂▄▃▄▄█▃▃▃90.132124.049121.9972.09453.081-15.29976.65621.7692.4259.6742.26238.31543.78540.654140.81331.51528.57833.217
us-gaap:CostsAndExpenses █▆▁▆▆▅▅▄▄▄▄▄▄▄▄▃▃▁286.34238.916146.984242.831237.594228.47230.244204.858211.536210.908200.588204.949197.746201.1198.696191.948182.395147.074
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest NANANA81.80275.74975.78670.8165.63645.96651.40355.4749.36256.59750.55542.06748.15746.54353.034
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments █▁98.61186.865NANA75.74975.786NANANANANANANANANANANANA
us-gaap:IncomeTaxExpenseBenefit ▆▇█▇▇▆▇▇▆▇▇▆▇▆▁▇▇▇-8.61617.71541.13315.51513.2096.4617.19715.8019.57112.66413.46211.04812.8129.902-98.65716.64317.96719.819
us-gaap:IncomeTaxesPaidNet ▅▁▄█▄▃▂▄▄▄▃▄▄▄11.346-15.586-0.01527.4051.77-0.93-7.4080.8223.06-0.059-0.5551.0731.2580.035NANANANA
us-gaap:InterestExpense █▆▅▄▄▅▅▄▅▄▄▄▃▃▃▃▂▁28.94723.58120.75817.5616.61518.67419.03816.07918.51618.09615.27915.4614.95314.72313.45614.01911.7827.606
 us-gaap:InterestExpenseDebt us-gaap:DebtInstrument cabo:The2026Notes█▁0.7680.228NANANANANANANANANANANANANANANANA
 us-gaap:InterestExpenseDebt us-gaap:DebtInstrument cabo:The2026NotesAndThe2028Notes█▁2.0680.616NANANANANANANANANANANANANANANANA
 us-gaap:InterestExpenseDebt us-gaap:DebtInstrument cabo:The2028Notes█▁1.30.388NANANANANANANANANANANANANANANANA
us-gaap:InterestPaidNet █▄▄▅▄▅▅▄▇▃▆▃▆▂▆▂▄▁31.83215.11815.9916.31715.54817.15218.16715.05325.2669.42120.8417.64720.8527.07222.896.40613.2880.743
us-gaap:NetIncomeLoss ▆▃▆▃▃▃▃▂▁▂▂▂▂▂█▁▁▁106.15368.582106.23866.28762.5469.32653.61349.83536.39538.73942.00838.31443.78540.653143.15331.51428.57633.215
us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted █▁107.70469.044NANA62.5469.326NANANANANANANANANANANANA
us-gaap:OperatingIncomeLoss ▄▃█▃▃▃▃▂▂▁▂▁▂▁▁▁▁▁115.409102.346189.78496.13190.70992.72688.50780.13374.11467.69769.26463.31970.66864.66159.01861.89858.64760.353
 us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax us-gaap:DerivativeInstrumentRisk us-gaap:InterestRateSwap▇▃▅▆▇▁▅██▄16.024-55.464-15.753-5.8049.463-84.629-23.54928.06633.969-29.069NANANANANANANANA
us-gaap:OtherNonoperatingIncomeExpense █▇▁▆▆▆▆▆▄▆▆▆▆▆▆▆▆▆12.1498.1-23.0313.2311.6551.7341.3411.582-9.6321.8021.4851.5030.8820.6170.4250.278-0.3220.287
us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax █▆▆▆▅▅▅▄▄▄▃▃▃▃▃▃▂▁401.749341.262336.768338.962328.303321.196318.751284.991285.65278.605269.852268.268268.414265.761257.698253.833240.991207.434
us-gaap:SellingGeneralAndAdministrativeExpense █▅▄▄▄▄▄▃▃▄▃▃▂▂▃▂▂▁88.01769.04264.68962.59664.99462.88464.71358.86160.10361.44357.63259.43954.19650.94956.10451.96851.19445.733
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
us-gaap:Assets █▆▅▄▄▃▃▃▂▃▂▂▂▂▂▂▂▁6830.0025432.2654488.3383826.8083743.453298.3593151.8312608.3272549.4522624.2372303.2342267.9482228.0582213.7862218.3292165.2332124.4941423.494
us-gaap:Liabilities █▆▄▃▃▄▃▂▂▃▂▂▂▂▂▂▂▁5149.1573831.6182993.0392442.4092419.9042487.4682310.2621833.5681786.5441855.2021527.8761522.6131512.1251513.8761546.9131639.6091621.346942.648
us-gaap:LiabilitiesAndStockholdersEquity █▆▅▄▄▃▃▃▂▃▂▂▂▂▂▂▂▁6830.0025432.2654488.3383826.8083743.453298.3593151.8312608.3272549.4522624.2372303.2342267.9482228.0582213.7862218.3292165.2332124.4941423.494
us-gaap:StockholdersEquity ██▇▆▆▃▃▃▃▃▃▃▂▂▂▁▁▁1680.8451600.6471495.2991384.3991323.546810.891841.569774.759762.908769.035775.358745.335715.933699.91671.416525.624503.148480.846
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
us-gaap:AssetsCurrent ▃█▃▄▄▂▁▁▁▁▂▂▂▁▁▁▁▁554.2081613.002672.813739.795717.804317.784181.488196.118155.716242.369317.863290.329264.92247.226242.384202.966165.4218.666
us-gaap:CashAndCashEquivalentsAtCarryingValue ▃█▃▄▄▂▁▁▁▁▂▂▂▁▁▁▁▁448.9651537.298574.909625.332642.552241.894125.271145.848102.283187.559264.113236.901203.522185.493161.752118.70189.793173.467
us-gaap:AccountsReceivableNetCurrent █▁▃▅▇▃▃50.22927.34232.79541.42346.09234.64633.467NANANA28.128NANANA47.404NANANA
us-gaap:OtherAssetsCurrent █▃▁▁▂▂▂11.4645.4253.6023.4524.4685.1234.314NANANA6.352NANANANANANANA
us-gaap:PrepaidExpenseAndOtherAssetsCurrent █▇▃▄▄▅▂▃▄▄▂▃▃▄▁33.03130.23917.89121.26319.63824.47615.61917.57820.421.74213.0916.69418.10419.47410.898NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
us-gaap:PropertyPlantAndEquipmentGross NANA3000.9172938.7352934.5142868.7422821.1722578.4562528.4112477.8832324.9372277.5472226.0322192.6712172.832093.5072072.5271867.683
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType cabo:BuildingAndLeaseholdImprovements█▅▅▅▅▅▄▃▃▃▃▂▂▂▂▂▂▁138.632118.896117.367115.88116.265115.254113.331103.426103.52102.942100.62598.79896.89895.98595.31495.35994.42689.021
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType cabo:RightOfUseAssetsNANA10.31410.26810.26810.26810.187NANANA0.0NANANANANANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:ConstructionInProgress█▃▃▃▃▂▃▂▂▁▂▂▂▁▂▁▁▁196.6398.66389.48895.87298.47281.55293.35279.85475.53661.64569.16374.16866.08960.29367.56459.97653.33560.592
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:Equipment█▇▇▆▇▆▆▄▄▃▃▃▂▂▂▂▂▁305.471288.966283.831277.014279.742271.856266.19232.135227.278223.665220.571215.859201.578200.859200.175200.961201.36179.893
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:FurnitureAndFixtures▇██▇▇▇▆▄▄▄▄▃▂▂▂▂▂▁458.939467.685463.469457.886458.851453.467444.799417.853413.364410.134406.011393.926385.033382.017378.968379.205380.871371.429
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:Land█▃▃▃▃▃▃▃▃▃▂▂▂▂▂▂▂▁21.01813.41113.29313.26813.37113.3513.36112.26812.25212.22811.94611.94611.61511.56511.58511.59311.5919.612
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:OtherCapitalizedPropertyPlantAndEquipment█▆▆▆▅▅▅▄▄▄▃▃▃▃▂▂▂▁2300.2661955.3641916.0481863.5351854.4491820.2011779.9641628.6271593.3131565.1031421.821387.1891370.421347.11329.4511257.7621243.1921069.545
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:SoftwareAndSoftwareDevelopmentCosts▁█▇▆▆▅▅▄▄▄▃▄▃▃▂▂▂▂85.305112.635107.107105.012103.096102.79499.98898.03697.7997.09794.80195.66194.39994.85289.77388.65187.75287.591
us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment NANA1735.4571694.4711701.0951658.4361619.9011581.3111551.0131512.4871476.9581440.3411406.2981372.6621340.9381283.1141269.1441250.944
us-gaap:AmortizationOfIntangibleAssets █▅▅▅▅▅▃▃▃▂▂▂▂▂▂▂▂▁19.010.511.611.611.111.26.64.24.24.13.03.03.02.82.83.12.10.1
us-gaap:PropertyPlantAndEquipmentNet NANA1265.461244.2641233.4191210.3061201.271997.145977.398965.396847.979837.206819.734820.009831.892810.393803.383616.739
us-gaap:LongTermInvestments NANANA36.83734.9747.8060.206NANANANANANANANANANANA
us-gaap:Goodwill █▄▄▄▄▄▄▃▃▃▂▂▂▂▂▂▂▁944.871430.543430.543434.876429.597429.597429.597358.014355.347355.347172.129172.129172.129172.129172.129177.809178.37484.928
us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill █▂▂▂▂▂▂▁▁▁▁2097.212987.212987.212997.071985.071985.071985.071819.071819.071819.071812.371NANANANANANANA
us-gaap:IntangibleAssetsNetExcludingGoodwill █▃▃▃▃▃▃▃▃▃▂▂▂▂▂▂▂▁2840.71267.7021278.1981298.2261290.1061301.2281312.3811030.9931035.211039.427953.851956.832959.817962.933965.745968.557971.673497.46
us-gaap:FiniteLivedIntangibleAssetsNet █▃▃▃▃▃▃▂▂▂▁▁▁▁▁743.488280.49290.986301.155305.035316.157327.31211.922216.139220.356141.48144.461147.446150.562153.608NANANA
us-gaap:OperatingLeaseRightOfUseAsset █▇▆▇▇▇█▇▇▇▁17.9914.8913.40814.35414.52315.27516.92415.98915.61814.6540.0NANANANANANANA
us-gaap:OtherAssetsNoncurrent ▄▄▃█▇▄▃▃▃▂▂▂▂▂▁▁▁▁39.13334.95333.54384.39772.52439.44427.09426.05725.78121.69811.41211.45211.45811.4896.1795.5085.6645.701
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent █▅▅▅▄▄▄▃▂▂▂▂▂▂▃▂▂▁240.592175.281174.139167.754152.84131.119136.993113.397102.81792.21694.134101.56594.44498.379117.963101.3186.60168.298
 us-gaap:AccountsPayableCurrent us-gaap:BalanceSheetLocation us-gaap:AccountsPayableAndAccruedLiabilities█▂▁▃▃▂▄53.0426.58822.68631.3332.65425.13136.351NANANA20.79NANANANANANANA
us-gaap:ContractWithCustomerLiabilityCurrent ▇▇▅███▇▆▆▇▄▃▄▃▁23.57223.61921.05125.43925.33324.88623.6422.56723.07824.09618.95418.68118.79117.7815.008NANANA
us-gaap:LiabilitiesCurrent █▅▅▅▅▄▄▃▂▂▂▂▂▂▃▂▂▁298.688225.4221.582226.543207.118184.94189.542153.179143.048141.204133.713139.309130.735132.097170.604151.281134.646112.545
 us-gaap:OperatingLeaseLiabilityCurrent us-gaap:BalanceSheetLocation us-gaap:AccountsPayableAndAccruedLiabilities█▃▁▂▂▃▄5.7634.4733.7724.0294.0314.2184.601NANANA0.0NANANANANANANA
 us-gaap:OtherAccruedLiabilitiesCurrent us-gaap:BalanceSheetLocation us-gaap:AccountsPayableAndAccruedLiabilities█▅▃▁▁▂▂22.07815.87312.0678.9949.73411.2479.96NANANA9.074NANANANANANANA
 us-gaap:TaxesPayableCurrent us-gaap:BalanceSheetLocation us-gaap:AccountsPayableAndAccruedLiabilities▆▁▂█▆▄▄11.5326.7677.42514.10511.999.6379.501NANANA8.149NANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
us-gaap:LongTermDebt █▅▂▁▁▁▁3898.7563105.1892191.6211731.8041738.8841845.9651753.045NANANANANANANA1194.642NANA544.03
us-gaap:DeferredFinanceCostsNoncurrentNet ▆▇█▁▂▃▃2.9153.0833.2492.0082.1492.2882.427NANANA0.0NANANANANANANA
us-gaap:LongTermDebtAndCapitalLeaseObligations █▆▄▃▃▄▄▃▃▃▂▂▂▂▂▂▂▁3816.153038.7542148.7981688.9731699.5251805.71711.9371278.111280.6371385.4751142.0561147.0481151.9151157.2731160.6821164.071167.458529.407
us-gaap:DeferredIncomeTaxLiabilitiesNet █▂▂▁▁▁▁806.63391.921366.675322.155303.353295.732303.314NANANA242.127NANANANANANANA
us-gaap:OtherLiabilitiesNoncurrent ▇▆▆▂▂▂▆█▆▄▁▁▁▁▁124.81493.626100.62728.32925.72625.572105.469134.48299.61458.7079.9810.47612.76211.64213.111NANANA
 us-gaap:OperatingLeaseLiabilityNoncurrent us-gaap:BalanceSheetLocation us-gaap:OtherNoncurrentLiabilities█▃▁▃▃▄▇11.4039.5418.7019.3799.53310.04811.146NANANA0.0NANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo NANA3.279NANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree NANA2.729NANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour NANA1.298NANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive NANA0.811NANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive NANA1.483NANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
us-gaap:StockholdersEquity ██▇▆▆▃▃▃▃▃▃▃▂▂▂▁▁▁1680.8451600.6471495.2991384.3991323.546810.891841.569774.759762.908769.035775.358745.335715.933699.91671.416525.624503.148480.846
us-gaap:CommonStockValue █████▁▁▁▁▁▁▁▁▁▃▃▁▁0.0620.0620.0620.0620.0620.0590.0590.0590.0590.0590.0590.0590.0590.0590.060.060.0590.059
us-gaap:AdditionalPaidInCapital █████▁▁▁▁▁▁▁▁▁▁▁▁▁544.992539.713535.586531.508527.64154.41951.19848.05945.00141.91938.89835.67433.25630.7528.41225.5922.51420.096
us-gaap:RetainedEarningsAccumulatedDeficit █▇▇▆▆▅▅▄▄▄▄▃▃▃▃▁▁▁1372.7241281.6671228.1721137.011085.7931036.877980.355939.602902.615877.644850.292819.687792.784759.004723.354577.892556.401536.412
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax ▄▄▂▁▁▁▅▄▅▇████████-101.237-85.216-140.683-156.435-162.242-152.783-68.158-91.201-63.135-29.165-0.096-0.35-0.351-0.351-0.352-0.441-0.442-0.444
 us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents us-gaap:AccumulatedGainLossNetCashFlowHedgeParent▆▇▃▁▁▂█-100.651-84.626-140.09-155.843-161.647-152.185-67.556NANANANANANANANANANANA
us-gaap:TreasuryStockValue ██▇▇▇▇▆▆▆▆▅▅▅▃▂▁▁▁135.696135.579127.838127.746127.708127.681121.885121.76121.632121.422113.795109.735109.81589.55280.05877.47775.38475.277
us-gaap:StockIssuedDuringPeriodValueNewIssues NANA0.00.0469.799NANANANANANANANANANANANANA
 us-gaap:StockIssuedDuringPeriodValueNewIssues us-gaap:StatementEquityComponents cabo:CommonStockOutstandingNANA0.00.00.003NANANANANANANANANANANANANA
 us-gaap:StockIssuedDuringPeriodValueNewIssues us-gaap:StatementEquityComponents us-gaap:AdditionalPaidInCapitalNANA0.00.0469.796NANANANANANANANANANANANANA
us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue █▅▅▅▄▃▃▃▃▃▃▁▁▁▂▃▁▁5.2794.1274.0783.8673.4263.2213.1393.0583.0823.0213.2242.4182.5062.3382.8223.0762.4182.427
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities █▇█▅▆▅▇▅▄▄▄▄▄▃▄▃▁▂183.632163.993175.391126.785153.695118.5156.556122.691108.116104.378100.152111.015101.9194.692104.69888.92952.59978.26
us-gaap:NetCashProvidedByUsedInInvestingActivities ▁█▆███▆██▇██████▅█-2039.265-66.698-655.069-121.772-102.055-76.017-606.62-61.805-60.848-404.969-58.692-63.787-46.197-45.619-47.706-47.655-768.821-26.985
us-gaap:NetCashProvidedByUsedInFinancingActivities ▇█▅▂▄▂▅▂▁▄▂▂▂▂▂▂▆▂767.3865.094429.255-22.233349.01874.14429.487-17.321-132.544224.037-14.248-13.849-37.684-25.332-13.941-12.366632.548-15.848
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect ▁█▅▅▆▅▅▅-1088.333962.389-50.423-17.22400.658116.623-20.57743.565NANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
us-gaap:AmortizationOfFinancingCosts █▄▄▄▄▅▅▄▆▅▄▄▄▄▄▄▃▁1.81.10.9751.11.11.1061.1191.11.31.1181.0751.11.00.970.9911.00.80.4
us-gaap:DepreciationDepletionAndAmortization █▆▅▆▅▅▄▃▃▃▃▃▃▃▃▂▂▁84.91568.5363.37471.42165.58465.27959.27148.73754.83553.84449.50650.41449.03348.77850.74445.5846.89138.404
us-gaap:IncreaseDecreaseInAccountsReceivable ▇▂▁█▇▄▆▅▆▄▆▃█▃▄█▆▃6.842-8.416-11.4088.375.965-3.0663.830.5911.93-2.8311.779-6.1138.804-4.453-3.4678.2734.293-6.034
us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet ▁▃▃▂▃▃▁▂▂▃▂▃▂▃█▁▂▂-1.4812.912.4910.7482.1552.703-2.794-0.1451.073.3560.2022.276-1.2811.92615.71-1.697-0.8770.415
us-gaap:NetCashProvidedByUsedInOperatingActivities █▇█▅▆▅▇▅▄▄▄▄▄▃▄▃▁▂183.632163.993175.391126.785153.695118.5156.556122.691108.116104.378100.152111.015101.9194.692104.69888.92952.59978.26
us-gaap:NetIncomeLoss ▆▃▆▃▃▃▃▂▁▂▂▂▂▂█▁▁▁106.15368.582106.23866.28762.5469.32653.61349.83536.39538.73942.00838.31443.78540.653143.15331.51428.57633.215
us-gaap:ShareBasedCompensation █▅▅▅▄▃▃▃▃▃▃▁▁▁▂▃▁▁5.2794.1274.0783.8673.4263.2213.1393.0583.0823.0213.2242.4182.5062.3382.8223.0762.4182.427
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
us-gaap:NetCashProvidedByUsedInInvestingActivities ▁█▆███▆██▇██████▅█-2039.265-66.698-655.069-121.772-102.055-76.017-606.62-61.805-60.848-404.969-58.692-63.787-46.197-45.619-47.706-47.655-768.821-26.985
us-gaap:PaymentsToAcquirePropertyPlantAndEquipment █▆▆▆▇▅█▅▅▂▄▅▃▂▃▃▂▁89.31271.85375.23574.57878.65964.75786.02865.83663.86146.62758.59668.30249.84941.01950.53352.440.51335.917
us-gaap:PaymentsToAcquireInvestments NANA574.87910.0NANANANANANANANANANANANANANA
 us-gaap:PaymentsToAcquireInvestments us-gaap:InvestmentType,us-gaap:SubsequentEventType cabo:EquityInvestmentInWisper,us-gaap:SubsequentEventNANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
us-gaap:NetCashProvidedByUsedInFinancingActivities ▇█▅▂▄▂▅▂▁▄▂▂▂▂▂▂▆▂767.3865.094429.255-22.233349.01874.14429.487-17.321-132.544224.037-14.248-13.849-37.684-25.332-13.941-12.366632.548-15.848
us-gaap:ProceedsFromIssuanceOfLongTermDebt ▇██▁▁▂▄▁▅▃▁▁800.0895.85950.00.00.0100.0450.00.0575.0250.00.00.0NANA0.00.0NANA
us-gaap:RepaymentsOfLongTermDebt ▁▁▆▁▂▁▁▁█▁▁▁▁▁▁▁▂▁6.5226.637490.5137.125107.137.267.444.26686.6494.5314.3784.382.8172.8162.8172.81793.7541.254
us-gaap:PaymentsOfDividends ████▆▆▆▆▄▄▄▄▃▃▃▃▁▁15.09615.08715.07615.0713.62412.80412.8612.84811.42411.39511.40311.41110.00510.03510.02810.0238.5868.579
us-gaap:Dividends ████▆▅▅▅▃▃▃▃▁▁▁15.09615.08715.07615.0713.62412.80412.8612.84811.42411.39511.40311.41110.00510.03510.028NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:DebtInstrument cabo:SeniorUnsecuredNotesDue2030NANANANANANANANANANANANANANANANANANA
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:DebtInstrument cabo:The2026NotesNANANANANANANANANANANANANANANANANANA
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:DebtInstrument cabo:The2028NotesNANANANANANANANANANANANANANANANANANA
 us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:DebtInstrument,us-gaap:SubsequentEventType cabo:SeniorUnsecuredNotesDue2030,us-gaap:SubsequentEventNANANANANANANANANANANANANANANANANANA

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value62000.062000.062000.062000.062000.059000.059000.059000.059000.059000.059000.059000.059000.059000.060000.060000.059000.059000.059000.059000.059000.059000.059000.059000.058000.058000.0
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Allocated Share Based Compensation Expense

us-gaap:AllocatedShareBasedCompensationExpense us-gaap:AwardType, us-gaap:IncomeStatementLocation

us-gaap:AllocatedShareBasedCompensationExpense

us-gaap:RestrictedStock, us-gaap:SellingGeneralAndAdministrativeExpenses


Allocated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value4.5493.4243.2193.0722.6782.5062.3092.0061.85
Percentage of AllocatedShareBasedCompensationExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax1.11.01.00.90.80.80.70.70.6
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:RestrictedStock us-gaap:SellingGeneralAndAdministrativeExpenses0.00.00.00.00.00.00.00.00.0

us-gaap:StockAppreciationRightsSARS, us-gaap:SellingGeneralAndAdministrativeExpenses


Allocated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value0.730.7030.8590.7950.7480.7150.831.0521.232
Percentage of AllocatedShareBasedCompensationExpense16.020.526.725.927.928.535.952.466.6
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax0.20.20.30.20.20.20.30.40.4
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:StockAppreciationRightsSARS us-gaap:SellingGeneralAndAdministrativeExpenses0.00.00.00.00.00.00.00.00.0

us-gaap:AllocatedShareBasedCompensationExpense us-gaap:IncomeStatementLocation

us-gaap:SellingGeneralAndAdministrativeExpenses


Allocated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value5.2794.1274.0783.8673.4263.23.13.13.13.03.22.42.52.32.83.12.42.4
Percentage of AllocatedShareBasedCompensationExpense116.0120.5126.7125.9127.9127.7134.3154.5167.60.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax1.31.21.21.11.01.01.01.11.11.11.20.90.90.91.11.21.01.2
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:SellingGeneralAndAdministrativeExpenses0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Comprehensive Income Net Of Tax

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTax


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value901241217253-15.29976212.4259.67423843401403128332420262725192122
Percentage of ComprehensiveIncomeNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax22.436.436.221.316.2-4.824.07.60.83.515.714.316.315.354.612.411.916.00.00.00.00.00.00.00.00.0

Costs And Expenses

us-gaap:CostsAndExpenses

us-gaap:CostsAndExpenses


Costs
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value286238146242237228230204211210200204197201198191182147160161154155152159166166157163161
Percentage of CostsAndExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax71.370.043.671.672.471.172.271.974.175.774.376.473.775.777.175.675.770.90.00.00.00.00.00.00.00.00.00.00.0

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

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest


Income
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value81757570654551554956504248465338404340433134354311143
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax24.123.123.622.223.016.118.520.618.421.119.016.319.019.325.60.00.00.00.00.00.00.00.00.00.00.0

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 End2021-06-302021-03-312020-06-302020-03-31
Value98867575
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax24.525.523.123.6

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxExpenseBenefit


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value-8.616174115136.4617159.571121311129.902-98.6571617191419161317111313164216
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax-2.15.212.24.64.02.05.45.53.44.55.04.14.83.7-38.36.67.59.60.00.00.00.00.00.00.00.00.00.00.0

Income Taxes Paid Net

us-gaap:IncomeTaxesPaidNet

us-gaap:IncomeTaxesPaidNet


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value11-15.586-0.015271.77-0.93-7.4080.8223.06-0.059-0.5551.0731.2580.035
Percentage of IncomeTaxesPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax2.8-4.6-0.08.10.5-0.3-2.30.31.1-0.0-0.20.40.50.0

Interest Expense

us-gaap:InterestExpense

us-gaap:InterestExpense


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-30
Value28232017161819161818151514141314117.6067.5887.5297.5497.5557.2897.8040.997
Percentage of InterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax7.26.96.25.25.15.86.05.66.56.55.75.85.65.55.25.54.93.70.00.00.00.00.00.00.0

Interest Expense Debt

us-gaap:InterestExpenseDebt us-gaap:DebtInstrument

us-gaap:InterestExpenseDebt

cabo:The2026Notes


Interest
Period End2021-06-302021-03-31
Value768000.0228000.0
Percentage of InterestExpenseDebt100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax0.20.1
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax cabo:The2026Notes0.00.0

cabo:The2026NotesAndThe2028Notes


Interest
Period End2021-06-302021-03-31
Value2068000.0616000.0
Percentage of InterestExpenseDebt269.3270.2
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax0.50.2
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax cabo:The2026NotesAndThe2028Notes0.00.0

cabo:The2028Notes


Interest
Period End2021-06-302021-03-31
Value1300000.0388000.0
Percentage of InterestExpenseDebt169.3170.2
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax0.30.1
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax cabo:The2028Notes0.00.0

Interest Paid Net

us-gaap:InterestPaidNet

us-gaap:InterestPaidNet


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value3115151615171815259.421207.647207.072226.406130.74313
Percentage of InterestPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax7.94.44.74.84.75.35.75.38.83.47.72.97.82.78.92.55.50.40.0

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312015-03-302014-12-312014-09-302014-06-302014-03-31
Value10668106666269534936384238434014331283324202627261921222226692624
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax26.420.131.519.619.021.616.817.512.713.915.614.316.315.355.612.411.916.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-09-30
Value1066810666626953493638423843401403128332420262719
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.098.3100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax26.420.131.519.619.021.616.817.512.713.915.614.316.315.354.612.411.916.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Net Income Loss Available To Common Stockholders Diluted

us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted

us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted


Net
Period End2021-06-302021-03-312020-06-302020-03-31
Value107696269
Percentage of NetIncomeLossAvailableToCommonStockholdersDiluted100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax26.820.219.021.6

Operating Income Loss

us-gaap:OperatingIncomeLoss

us-gaap:OperatingIncomeLoss


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312015-03-302014-12-312014-09-302014-06-302014-03-31
Value11510218996909288807467696370645961586046435047513835353544364339
Percentage of OperatingIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax28.730.056.428.427.628.927.828.125.924.325.723.626.324.322.924.424.329.10.00.00.00.00.00.00.00.00.00.00.00.00.0

Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax us-gaap:DerivativeInstrumentRisk

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax

us-gaap:InterestRateSwap


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value16-55.464-15.753-5.8049.463-84.629-23.5492833-29.069
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax4.0-16.3-4.7-1.72.9-26.3-7.49.811.9-10.4
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:InterestRateSwap0.00.00.00.00.00.00.00.00.00.0

Other Nonoperating Income Expense

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:OtherNonoperatingIncomeExpense


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value128.1-23.0313.2311.6551.7341.3411.582-9.6321.8021.4851.5030.8820.6170.4250.278-0.3220.2870.0984.3290.1830.51-0.350.1030.034-0.018-0.95775-0.032
Percentage of OtherNonoperatingIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax3.02.4-6.81.00.50.50.40.6-3.40.60.60.60.30.20.20.1-0.10.10.00.00.00.00.00.00.00.00.00.00.0

Revenue From Contract With Customer Including Assessed Tax

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value401341336338328321318284285278269268268265257253240207
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ProductOrService

cabo:BusinessServices


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value766058595857565049474039383736353226
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax19.117.717.517.517.818.017.917.817.416.914.914.814.314.214.213.913.513.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax19.117.717.517.517.818.017.917.817.416.914.914.814.314.214.213.913.513.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax cabo:BusinessServices100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

cabo:Data


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value2071831761741641541501341321291261241221181121091039089868683777372696866
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax51.753.852.351.550.048.347.147.146.546.646.846.345.644.643.743.242.943.50.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax51.753.852.351.550.048.347.147.146.546.646.846.345.644.643.743.242.943.50.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax cabo:Data100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

cabo:FeesImposedByVariousGovernmentalAuthoritiesPassedThroughToCustomer


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value8.116.1525.9456.2986.6156.37.65.15.94.14.04.04.14.14.14.14.03.5
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax2.01.81.81.92.02.02.41.82.11.51.51.51.51.51.61.61.71.7
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax2.01.81.81.92.02.02.41.82.11.51.51.51.51.51.61.61.71.7
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax cabo:FeesImposedByVariousGovernmentalAuthoritiesPassedThroughToCustomer100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

cabo:Video


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value87767683878586808483828487888688847272737474778186878487
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax21.722.322.824.626.626.627.128.429.430.130.631.532.633.433.634.935.234.90.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax21.722.322.824.626.626.627.128.429.430.130.631.532.633.433.634.935.234.90.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax cabo:Video100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

cabo:Voice


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value1210111112121210109.6249.9331010101111119.86710101011121112141515
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax3.03.13.43.43.73.94.13.63.73.53.73.83.94.04.34.44.74.80.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax3.03.13.43.43.73.94.13.63.73.53.73.83.94.04.34.44.74.80.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax cabo:Voice100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProductAndServiceOther


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value1810139.9516.37110263.7023.5793.4953.2553.5713.5764.9143.5373.1452.7412.322
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax4.53.24.12.91.93.38.41.31.31.31.21.31.31.81.41.21.11.1
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax4.53.24.12.91.93.38.41.31.31.31.21.31.31.81.41.21.11.1
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ProductAndServiceOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Selling General And Administrative Expense

us-gaap:SellingGeneralAndAdministrativeExpense

us-gaap:SellingGeneralAndAdministrativeExpense


Selling
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value8869646264626458606157595450565151454848434344475249454946
Percentage of SellingGeneralAndAdministrativeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax21.920.219.218.519.819.620.320.721.022.121.422.220.219.221.820.521.222.00.00.00.00.00.00.00.00.00.00.00.0

Assets

us-gaap:Assets

us-gaap:Assets


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value68305432448838263743329831512608254926242303226722282213221821652124142313971384137313771408140113681262
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Liabilities

us-gaap:Liabilities

us-gaap:Liabilities


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value51493831299324422419248723101833178618551527152215121513154616391621942942946942955973970954408
Percentage of Liabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets75.470.566.763.864.675.473.370.370.170.766.367.167.968.469.775.776.366.267.568.468.669.469.169.369.832.4

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:LiabilitiesAndStockholdersEquity


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value68305432448838263743329831512608254926242303226722282213221821652124142313971384137313771408140113681262
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-312013-12-312012-12-31
Value16801600149513841323810841774762769775745715699671525503480454437431422435430414853835825
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets24.629.533.336.235.424.626.729.729.929.333.732.932.131.630.324.323.733.832.531.631.430.630.930.730.267.60.00.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

cabo:CommonStockOutstanding


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-31
Value0.0620.0620.0620.0620.0620.0590.0590.0590.0590.0590.0590.0590.0590.0590.0590.0590.059
Percentage of StockholdersEquity0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets cabo:CommonStockOutstanding0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-31
Value-101.237-85.216-140.683-156.435-162.242-152.783-68.158-91.201-63.135-29.165-0.096-0.35-0.351-0.351-0.352-0.441-0.442-0.444-0.446-0.474-0.502-0.53-0.5570.0
Percentage of StockholdersEquity-6.0-5.3-9.4-11.3-12.3-18.8-8.1-11.8-8.3-3.8-0.0-0.0-0.0-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.10.0
Percentage of Assets-1.5-1.6-3.1-4.1-4.3-4.6-2.2-3.5-2.5-1.1-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value544539535531527545148454138353330282522201714117.9754.9292.0530.0
Percentage of StockholdersEquity32.433.735.838.439.96.76.16.25.95.55.04.84.64.44.24.94.54.23.93.22.61.91.10.50.0
Percentage of Assets8.09.911.913.914.11.61.61.81.81.61.71.61.51.41.31.21.11.41.31.00.80.60.30.10.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-312013-12-312012-12-31
Value137212811228113710851036980939902877850819792759723577556536511495483465447434919132511781074
Percentage of StockholdersEquity81.780.182.182.182.0127.9116.5121.3118.3114.1109.7110.0110.7108.4107.7109.9110.6111.6112.6113.3112.0110.3102.7100.9222.1155.4141.1130.2
Percentage of Assets20.123.627.429.729.031.431.136.035.433.436.936.135.634.332.626.726.237.736.635.835.233.831.831.067.2105.10.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TreasuryStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value-135.696-135.579-127.838-127.746-127.708-127.681-121.885-121.76-121.632-121.422-113.795-109.735-109.815-89.552-80.058-77.477-75.384-75.277-74.547-72.128-62.498-50.958-16.367-5.9320.0
Percentage of StockholdersEquity-8.1-8.5-8.5-9.2-9.6-15.7-14.5-15.7-15.9-15.8-14.7-14.7-15.3-12.8-11.9-14.7-15.0-15.7-16.4-16.5-14.5-12.1-3.8-1.40.0
Percentage of Assets-2.0-2.5-2.8-3.3-3.4-3.9-3.9-4.7-4.8-4.6-4.9-4.8-4.9-4.0-3.6-3.6-3.5-5.3-5.3-5.2-4.5-3.7-1.2-0.40.0
Percentage of Assets us-gaap:TreasuryStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Assets Current

us-gaap:AssetsCurrent

us-gaap:AssetsCurrent


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value554161367273971731718119615524231729026424724220216521818516914615116619015150
Percentage of AssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.129.715.019.319.29.65.87.56.19.213.812.811.911.210.99.47.815.413.312.310.611.011.813.611.14.0

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashAndCashEquivalentsAtCarryingValue


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302013-12-312012-12-31
Value4481537574625642241125145102187264236203185161118891731381231021061191441059.0646.416.0247.1856.2387.3
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets6.628.312.816.317.27.34.05.64.07.111.510.49.18.47.35.54.212.29.98.97.57.78.510.37.70.00.50.00.00.00.0

Accounts Receivable Net Current

us-gaap:AccountsReceivableNetCurrent

us-gaap:AccountsReceivableNetCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-312017-12-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value5027324146343328472830312934302929
Percentage of AccountsReceivableNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.70.50.71.11.21.11.11.22.12.12.22.32.22.52.22.22.4

Other Assets Current

us-gaap:OtherAssetsCurrent

us-gaap:OtherAssetsCurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value115.4253.6023.4524.4685.1234.3146.352
Percentage of OtherAssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.20.10.10.10.10.20.10.3

Prepaid Expense And Other Assets Current

us-gaap:PrepaidExpenseAndOtherAssetsCurrent

us-gaap:PrepaidExpenseAndOtherAssetsCurrent


Prepaid
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value333017211924151720211316181910
Percentage of PrepaidExpenseAndOtherAssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.50.60.40.60.50.70.50.70.80.80.60.70.80.90.5

Property Plant And Equipment Gross

us-gaap:PropertyPlantAndEquipmentGross

us-gaap:PropertyPlantAndEquipmentGross


Property
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value300029382934286828212578252824772324227722262192217220932072186718371920190418771853216921432079
Percentage of PropertyPlantAndEquipmentGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets66.976.878.487.089.598.999.294.4100.9100.499.999.097.996.797.6131.2131.5138.7138.6136.3131.6154.9156.6164.8

us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType

cabo:BuildingAndLeaseholdImprovements


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value1381181171151161151131031031021009896959595948988868685848477
Percentage of PropertyPlantAndEquipmentGross0.00.03.93.94.04.04.04.04.14.24.34.34.44.44.44.64.64.84.84.54.54.64.63.93.7
Percentage of Assets2.02.22.63.03.13.53.64.04.13.94.44.44.34.34.34.44.46.36.36.36.36.26.06.16.2
Percentage of Assets cabo:BuildingAndLeaseholdImprovements0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

cabo:RightOfUseAssets


Property
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value10101010100.0
Percentage of PropertyPlantAndEquipmentGross0.30.30.30.40.40.0
Percentage of Assets0.20.30.30.30.30.0
Percentage of Assets cabo:RightOfUseAssets0.00.00.00.00.00.0

us-gaap:ConstructionInProgress


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value19698899598819379756169746660675953606457726189556350
Percentage of PropertyPlantAndEquipmentGross0.00.03.03.33.42.83.33.13.02.53.03.33.02.73.12.92.63.23.53.03.83.34.82.63.02.4
Percentage of Assets2.91.82.02.52.62.53.03.13.02.33.03.33.02.73.02.82.54.34.64.25.24.46.44.04.74.0
Percentage of Assets us-gaap:ConstructionInProgress0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Equipment


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value305288283277279271266232227223220215201200200200201179181253255265259280278270
Percentage of PropertyPlantAndEquipmentGross0.00.09.59.49.59.59.49.09.09.09.59.59.19.29.29.69.79.69.913.213.414.114.012.913.013.0
Percentage of Assets4.55.36.37.27.58.28.48.98.98.59.69.59.09.19.09.39.512.613.018.318.619.318.420.020.421.5
Percentage of Assets us-gaap:Equipment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:FurnitureAndFixtures


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value458467463457458453444417413410406393385382378379380371359352346335317311303294
Percentage of PropertyPlantAndEquipmentGross0.00.015.415.615.615.815.816.216.316.617.517.317.317.417.418.118.419.919.618.318.217.917.114.414.114.2
Percentage of Assets6.78.610.312.012.313.714.116.016.215.617.617.417.317.317.117.517.926.125.825.425.224.422.622.222.123.4
Percentage of Assets us-gaap:FurnitureAndFixtures0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Land


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value21131313131313121212111111111111119.6129.6129.4769.4829.4829.4829.5089.489.47
Percentage of PropertyPlantAndEquipmentGross0.00.00.40.50.50.50.50.50.50.50.50.50.50.50.50.60.60.50.50.50.50.50.50.40.40.5
Percentage of Assets0.30.20.30.30.40.40.40.50.50.50.50.50.50.50.50.50.50.70.70.70.70.70.70.70.70.8
Percentage of Assets us-gaap:Land0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OtherCapitalizedPropertyPlantAndEquipment


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value23001955191618631854182017791628159315651421138713701347132912571243106910481080105510421017135413361309
Percentage of PropertyPlantAndEquipmentGross0.00.063.863.463.263.463.163.263.063.261.260.961.661.461.260.160.057.357.156.255.455.554.962.462.363.0
Percentage of Assets33.736.042.748.749.555.256.562.462.559.661.761.261.560.959.958.158.575.175.178.076.875.772.296.797.6103.8
Percentage of Assets us-gaap:OtherCapitalizedPropertyPlantAndEquipment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:SoftwareAndSoftwareDevelopmentCosts


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value851121071051031029998979794959494898887878380797775727066
Percentage of PropertyPlantAndEquipmentGross0.00.03.63.63.53.63.53.83.93.94.14.24.24.34.14.24.24.74.64.24.24.14.03.33.33.2
Percentage of Assets1.22.12.42.72.83.13.23.83.83.74.14.24.24.34.04.14.16.26.05.85.85.65.35.25.25.3
Percentage of Assets us-gaap:SoftwareAndSoftwareDevelopmentCosts0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment


Accumulated
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value173516941701165816191581155115121476144014061372134012831269125012171297126812451212156315301463
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets38.744.345.450.351.460.660.857.664.163.563.162.060.459.359.787.987.293.792.490.486.1111.6111.8116.0

Amortization Of Intangible Assets

us-gaap:AmortizationOfIntangibleAssets

us-gaap:AmortizationOfIntangibleAssets


Amortization
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value1910111111116.64.24.24.13.03.03.02.82.83.12.10.10.00.10.030.00.040.030.030.10.050.06
Percentage of AmortizationOfIntangibleAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.00.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AmortizationOfIntangibleAssets us-gaap:BusinessAcquisition

cabo:Hargray


Amortization
Period End2021-06-30
Value8.5
Percentage of AmortizationOfIntangibleAssets44.7
Percentage of Assets0.0
Percentage of Assets cabo:Hargray0.0

Property Plant And Equipment Net

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:PropertyPlantAndEquipmentNet


Property
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value12651244123312101201997977965847837819820831810803616619623635632640606612616
Percentage of PropertyPlantAndEquipmentNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets28.232.532.936.738.138.238.336.836.836.936.837.037.537.437.843.344.345.046.245.945.543.344.848.8

Long Term Investments

us-gaap:LongTermInvestments

us-gaap:LongTermInvestments


Long
Period End2020-09-302020-06-302020-03-312019-12-31
Value36347.8060.206
Percentage of LongTermInvestments100.0100.0100.0100.0
Percentage of Assets1.00.90.20.0

Goodwill

us-gaap:Goodwill

us-gaap:Goodwill


Goodwill
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value944430430434429429429358355355172172172172172177178848485858585858585
Percentage of Goodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets13.87.99.611.411.513.013.613.713.913.57.57.67.77.87.88.28.46.06.16.26.26.26.16.16.26.8

us-gaap:Goodwill us-gaap:BusinessAcquisition

cabo:Hargray


Goodwillus-gaap:
Period End2021-05-03
Value514
Percentage of Goodwill0.0
Percentage of Assets0.0
Percentage of Assets cabo:Hargray0.0

cabo:NewWave


Goodwillus-gaap:
Period End2020-12-312019-12-312017-12-312017-09-302017-05-01
Value185878717793
Percentage of Goodwill43.220.350.7100.00.0
Percentage of Assets4.12.83.98.20.0
Percentage of Assets cabo:NewWave0.00.00.00.00.0

Indefinite Lived Intangible Assets Excluding Goodwill

us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill

us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill


Indefinite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value2097987987997985985985819819819812
Percentage of IndefiniteLivedIntangibleAssetsExcludingGoodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets30.718.222.026.126.329.931.331.432.131.235.3

us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill us-gaap:IndefiniteLivedIntangibleAssetsByMajorClass

us-gaap:FranchiseRights


Indefinite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-09-302015-06-302014-12-31
Value2089979979989978978978812812812812812812812812817817497497496496496
Percentage of IndefiniteLivedIntangibleAssetsExcludingGoodwill99.699.299.299.299.399.399.399.299.299.2100.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets30.618.021.825.926.129.731.031.131.931.035.335.836.536.736.637.738.534.935.635.436.339.3
Percentage of Assets us-gaap:FranchiseRights0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TradeNames


Indefinite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value7.57.57.57.56.76.76.76.70.0
Percentage of IndefiniteLivedIntangibleAssetsExcludingGoodwill0.40.80.80.80.70.70.70.80.0
Percentage of Assets0.10.10.20.20.20.20.20.30.0
Percentage of Assets us-gaap:TradeNames0.00.00.00.00.00.00.00.00.0

Intangible Assets Net Excluding Goodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill


Intangible
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value2840126712781298129013011312103010351039953956959962965968971497497496496496496496496496
Percentage of IntangibleAssetsNetExcludingGoodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets41.623.328.533.934.539.541.639.540.639.641.442.243.143.543.544.745.734.935.635.836.236.135.335.536.339.4

Finite Lived Intangible Assets Net

us-gaap:FiniteLivedIntangibleAssetsNet

us-gaap:FiniteLivedIntangibleAssetsNet


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312015-09-302015-06-302014-12-31
Value7432802903013053163272112162201411441471501530.4940.510.571
Percentage of FiniteLivedIntangibleAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets10.95.26.57.98.19.610.48.18.58.46.16.46.66.86.90.00.00.0

us-gaap:FiniteLivedIntangibleAssetsNet us-gaap:FiniteLivedIntangibleAssetsByMajorClass

cabo:WirelessSpectrumLicenses


Finite
Period End2021-06-302021-03-312020-12-31
Value1.371.3881.403
Percentage of FiniteLivedIntangibleAssetsNet0.20.50.5
Percentage of Assets0.00.00.0
Percentage of Assets cabo:WirelessSpectrumLicenses0.00.00.0

us-gaap:CustomerRelationships


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value731277287299302313324211215219140143146149152150153
Percentage of FiniteLivedIntangibleAssetsNet98.499.098.999.399.399.299.299.999.999.899.699.599.599.399.20.00.0
Percentage of Assets10.75.16.47.88.19.510.38.18.58.46.16.36.66.86.96.97.2
Percentage of Assets us-gaap:CustomerRelationships0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TrademarksAndTradeNames


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value101.4981.7481.9982.2482.4982.7480.1220.2440.3660.4870.610.7310.8530.9750.7581.083
Percentage of FiniteLivedIntangibleAssetsNet1.50.50.60.70.70.80.80.10.10.20.30.40.50.60.60.00.0
Percentage of Assets0.20.00.00.10.10.10.10.00.00.00.00.00.00.00.00.00.1
Percentage of Assets us-gaap:TrademarksAndTradeNames0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Operating Lease Right Of Use Asset

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OperatingLeaseRightOfUseAsset


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value171413141415161515140.0
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets0.30.30.30.40.40.50.50.60.60.60.0

us-gaap:OperatingLeaseRightOfUseAsset us-gaap:BalanceSheetLocation

us-gaap:OtherNoncurrentAssets


Operating
Period End2020-12-312019-12-31
Value1316
Percentage of OperatingLeaseRightOfUseAsset100.0100.0
Percentage of Assets0.30.5
Percentage of Assets us-gaap:OtherNoncurrentAssets0.00.0

Other Assets Noncurrent

us-gaap:OtherAssetsNoncurrent

us-gaap:OtherAssetsNoncurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value39343384723927262521111111116.1795.5085.6645.7019.3059.703101119212213
Percentage of OtherAssetsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.60.60.72.21.91.20.91.01.00.80.50.50.50.50.30.30.30.40.70.70.80.81.41.61.61.1

Accounts Payable And Accrued Liabilities Current

us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent

us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value2401751741671521311361131029294101949811710186688282777895897571
Percentage of AccountsPayableAndAccruedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.53.23.94.44.14.04.34.34.03.54.14.54.24.45.34.74.14.85.96.05.75.76.86.45.55.7

Accounts Payable Current

us-gaap:AccountsPayableCurrent us-gaap:BalanceSheetLocation

us-gaap:AccountsPayableCurrent

us-gaap:AccountsPayableAndAccruedLiabilities


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value5326223132253620
Percentage of AccountsPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.80.50.50.80.90.81.20.9
Percentage of Assets us-gaap:AccountsPayableAndAccruedLiabilities0.00.00.00.00.00.00.00.0

Contract With Customer Liability Current

us-gaap:ContractWithCustomerLiabilityCurrent

us-gaap:ContractWithCustomerLiabilityCurrent


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value232321252524232223241818181715
Percentage of ContractWithCustomerLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.30.40.50.70.70.80.80.90.90.90.80.80.80.80.7

Liabilities Current

us-gaap:LiabilitiesCurrent

us-gaap:LiabilitiesCurrent


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value29822522122620718418915314314113313913013217015113411211111211012212613210295
Percentage of LiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.44.14.95.95.55.66.05.95.65.45.86.15.96.07.77.06.37.98.08.18.08.99.09.57.57.6

Operating Lease Liability Current

us-gaap:OperatingLeaseLiabilityCurrent us-gaap:BalanceSheetLocation

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:AccountsPayableAndAccruedLiabilities


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value5763000.04473000.03772000.04029000.04031000.04218000.04601000.00
Percentage of OperatingLeaseLiabilityCurrent100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets0.10.10.10.10.10.10.10.0
Percentage of Assets us-gaap:AccountsPayableAndAccruedLiabilities0.00.00.00.00.00.00.00.0

Other Accrued Liabilities Current

us-gaap:OtherAccruedLiabilitiesCurrent us-gaap:BalanceSheetLocation

us-gaap:OtherAccruedLiabilitiesCurrent

us-gaap:AccountsPayableAndAccruedLiabilities


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value2215128.9949.734119.969.074
Percentage of OtherAccruedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.30.30.30.20.30.30.30.4
Percentage of Assets us-gaap:AccountsPayableAndAccruedLiabilities0.00.00.00.00.00.00.00.0

Taxes Payable Current

us-gaap:TaxesPayableCurrent us-gaap:BalanceSheetLocation

us-gaap:TaxesPayableCurrent

us-gaap:AccountsPayableAndAccruedLiabilities


Taxes
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value116.7677.42514119.6379.5018.149
Percentage of TaxesPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.20.10.20.40.30.30.30.4
Percentage of Assets us-gaap:AccountsPayableAndAccruedLiabilities0.00.00.00.00.00.00.00.0

Long Term Debt

us-gaap:LongTermDebt

us-gaap:LongTermDebt


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312017-12-312017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-30
Value38983105219117311738184517531194544545532533534549549550
Percentage of LongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets57.157.248.845.346.556.055.653.938.239.038.538.938.839.039.240.2

us-gaap:LongTermDebt us-gaap:CreditFacility

us-gaap:SecuredDebt


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value2028128212821517151715171517
Percentage of LongTermDebt52.041.358.587.687.382.286.5
Percentage of Assets29.723.628.639.640.546.048.1
Percentage of Assets us-gaap:SecuredDebt0.00.00.00.00.00.00.0

us-gaap:LongTermDebt us-gaap:CreditFacility, us-gaap:LongtermDebtType

us-gaap:SecuredDebt, cabo:TermB2Loan


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value228228228233233233233
Percentage of LongTermDebt5.97.410.413.513.412.613.3
Percentage of Assets3.34.25.16.16.27.17.4
Percentage of Assets us-gaap:SecuredDebt cabo:TermB2Loan0.00.00.00.00.00.00.0

us-gaap:SecuredDebt, cabo:TermB3Loan


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value577577577303303303303
Percentage of LongTermDebt14.818.626.317.517.516.517.3
Percentage of Assets8.510.612.97.98.19.29.6
Percentage of Assets us-gaap:SecuredDebt cabo:TermB3Loan0.00.00.00.00.00.00.0

us-gaap:SecuredDebt, cabo:TermLoanA2


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value476476476513513513513
Percentage of LongTermDebt12.215.321.729.729.627.829.3
Percentage of Assets7.08.810.613.413.715.616.3
Percentage of Assets us-gaap:SecuredDebt cabo:TermLoanA20.00.00.00.00.00.00.0

us-gaap:SecuredDebt, cabo:TermLoanB4


Long
Period End2021-06-30
Value746
Percentage of LongTermDebt19.1
Percentage of Assets10.9
Percentage of Assets us-gaap:SecuredDebt cabo:TermLoanB40.0

us-gaap:LongTermDebt us-gaap:DebtInstrument

cabo:The2026Notes


Long
Period End2021-06-302021-03-31
Value560559
Percentage of LongTermDebt14.418.0
Percentage of Assets8.210.3
Percentage of Assets cabo:The2026Notes0.00.0

cabo:The2026NotesAndThe2028Notes


Long
Period End2021-06-302021-03-31
Value896895
Percentage of LongTermDebt23.028.8
Percentage of Assets13.116.5
Percentage of Assets cabo:The2026NotesAndThe2028Notes0.00.0

cabo:The2028Notes


Long
Period End2021-06-302021-03-31
Value336335
Percentage of LongTermDebt8.610.8
Percentage of Assets4.96.2
Percentage of Assets cabo:The2028Notes0.00.0

Deferred Finance Costs Noncurrent Net

us-gaap:DeferredFinanceCostsNoncurrentNet

us-gaap:DeferredFinanceCostsNoncurrentNet


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value2915000.03083000.03249000.02008000.02149000.02288000.02427000.00
Percentage of DeferredFinanceCostsNoncurrentNet100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets0.00.10.10.10.10.10.10.0

Long Term Debt And Capital Lease Obligations

us-gaap:LongTermDebtAndCapitalLeaseObligations

us-gaap:LongTermDebtAndCapitalLeaseObligations


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value38163038214816881699180517111278128013851142114711511157116011641167529530535
Percentage of LongTermDebtAndCapitalLeaseObligations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets55.955.947.944.145.454.754.349.050.252.849.650.651.752.352.353.855.037.238.038.0

Deferred Income Tax Liabilities Net

us-gaap:DeferredIncomeTaxLiabilitiesNet

us-gaap:DeferredIncomeTaxLiabilitiesNet


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value806391366322303295303242
Percentage of DeferredIncomeTaxLiabilitiesNet100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets11.87.28.28.48.19.09.610.5

Other Liabilities Noncurrent

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:OtherLiabilitiesNoncurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value1249310028252510513499589.98101211130.2770.2250.2180.1520.090.0350.0350.037
Percentage of OtherLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.81.72.20.70.70.83.35.23.92.20.40.50.60.50.60.00.00.00.00.00.00.00.0

Operating Lease Liability Noncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent us-gaap:BalanceSheetLocation

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:OtherNoncurrentLiabilities


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value119.5418.7019.3799.53310110.0
Percentage of OperatingLeaseLiabilityNoncurrent100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets0.20.20.20.20.30.30.40.0
Percentage of Assets us-gaap:OtherNoncurrentLiabilities0.00.00.00.00.00.00.00.0

Lessee Operating Lease Liability Payments Due Year Two

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo


Lessee
Period End2020-12-31
Value3279000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearTwo100.0
Percentage of Assets0.1

Lessee Operating Lease Liability Payments Due Year Three

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree


Lessee
Period End2020-12-31
Value2729000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearThree100.0
Percentage of Assets0.1

Lessee Operating Lease Liability Payments Due Year Four

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour


Lessee
Period End2020-12-31
Value1298000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFour100.0
Percentage of Assets0.0

Lessee Operating Lease Liability Payments Due Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive


Lessee
Period End2020-12-31
Value811000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFive100.0
Percentage of Assets0.0

Lessee Operating Lease Liability Payments Due After Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive


Lessee
Period End2020-12-31
Value1483000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive100.0
Percentage of Assets0.0

Operating Lease Liability

us-gaap:OperatingLeaseLiability us-gaap:BalanceSheetLocation

us-gaap:OperatingLeaseLiability

cabo:AccountsPayableAndAccruedLiabilitiesAndOtherNoncurrentLiabilities


Operating
Period End2020-12-312019-12-31
Value1215
Percentage of OperatingLeaseLiability100.0100.0
Percentage of Assets0.30.5
Percentage of Assets cabo:AccountsPayableAndAccruedLiabilitiesAndOtherNoncurrentLiabilities0.00.0

Lessee Operating Lease Liability Payments Due

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue


Lessee
Period End2020-12-31
Value13
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue100.0
Percentage of Assets0.3

Lessee Operating Lease Liability Undiscounted Excess Amount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount


Lessee
Period End2020-12-31
Value1385000.0
Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount100.0
Percentage of Assets0.0

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-312013-12-312012-12-31
Value16801600149513841323810841774762769775745715699671525503480454437431422435430414853835825
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets24.629.533.336.235.424.626.729.729.929.333.732.932.131.630.324.323.733.832.531.631.430.630.930.730.267.60.00.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

cabo:CommonStockOutstanding


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-31
Value0.0620.0620.0620.0620.0620.0590.0590.0590.0590.0590.0590.0590.0590.0590.0590.0590.059
Percentage of StockholdersEquity0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets cabo:CommonStockOutstanding0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-31
Value-101.237-85.216-140.683-156.435-162.242-152.783-68.158-91.201-63.135-29.165-0.096-0.35-0.351-0.351-0.352-0.441-0.442-0.444-0.446-0.474-0.502-0.53-0.5570.0
Percentage of StockholdersEquity-6.0-5.3-9.4-11.3-12.3-18.8-8.1-11.8-8.3-3.8-0.0-0.0-0.0-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.1-0.10.0
Percentage of Assets-1.5-1.6-3.1-4.1-4.3-4.6-2.2-3.5-2.5-1.1-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value544539535531527545148454138353330282522201714117.9754.9292.0530.0
Percentage of StockholdersEquity32.433.735.838.439.96.76.16.25.95.55.04.84.64.44.24.94.54.23.93.22.61.91.10.50.0
Percentage of Assets8.09.911.913.914.11.61.61.81.81.61.71.61.51.41.31.21.11.41.31.00.80.60.30.10.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-312013-12-312012-12-31
Value137212811228113710851036980939902877850819792759723577556536511495483465447434919132511781074
Percentage of StockholdersEquity81.780.182.182.182.0127.9116.5121.3118.3114.1109.7110.0110.7108.4107.7109.9110.6111.6112.6113.3112.0110.3102.7100.9222.1155.4141.1130.2
Percentage of Assets20.123.627.429.729.031.431.136.035.433.436.936.135.634.332.626.726.237.736.635.835.233.831.831.067.2105.10.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TreasuryStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value-135.696-135.579-127.838-127.746-127.708-127.681-121.885-121.76-121.632-121.422-113.795-109.735-109.815-89.552-80.058-77.477-75.384-75.277-74.547-72.128-62.498-50.958-16.367-5.9320.0
Percentage of StockholdersEquity-8.1-8.5-8.5-9.2-9.6-15.7-14.5-15.7-15.9-15.8-14.7-14.7-15.3-12.8-11.9-14.7-15.0-15.7-16.4-16.5-14.5-12.1-3.8-1.40.0
Percentage of Assets-2.0-2.5-2.8-3.3-3.4-3.9-3.9-4.7-4.8-4.6-4.9-4.8-4.9-4.0-3.6-3.6-3.5-5.3-5.3-5.2-4.5-3.7-1.2-0.40.0
Percentage of Assets us-gaap:TreasuryStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value62000.062000.062000.062000.062000.059000.059000.059000.059000.059000.059000.059000.059000.059000.060000.060000.059000.059000.059000.059000.059000.059000.059000.059000.058000.058000.0
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Additional Paid In Capital

us-gaap:AdditionalPaidInCapital

us-gaap:AdditionalPaidInCapital


Additional
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value544539535531527545148454138353330282522201714117.9754.9292.053
Percentage of AdditionalPaidInCapital100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.09.911.913.914.11.61.61.81.81.61.71.61.51.41.31.21.11.41.31.00.80.60.30.1

Retained Earnings Accumulated Deficit

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:RetainedEarningsAccumulatedDeficit


Retained
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value1372128112281137108510369809399028778508197927597235775565365114954834654474349191325
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets20.123.627.429.729.031.431.136.035.433.436.936.135.634.332.626.726.237.736.635.835.233.831.831.067.2105.1

Accumulated Other Comprehensive Income Loss Net Of Tax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value-101240000.0-85216000.0-140680000.0-156440000.0-162240000.0-152780000.0-68158000.0-91201000.0-63135000.0-29165000.0-96000.0-350000.0-351000.0-351000.0-352000.0-441000.0-442000.0-444000.0-446000.0-474000.0-502000.0-530000.0-557000.0
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-1.5-1.6-3.1-4.1-4.3-4.6-2.2-3.5-2.5-1.1-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value-100650000.0-84626000.0-140090000.0-155840000.0-161650000.0-152180000.0-67556000.0
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax99.499.399.699.699.699.699.1
Percentage of Assets-1.5-1.6-3.1-4.1-4.3-4.6-2.1
Percentage of Assets us-gaap:AccumulatedGainLossNetCashFlowHedgeParent0.00.00.00.00.00.00.0

Treasury Stock Value

us-gaap:TreasuryStockValue

us-gaap:TreasuryStockValue


Treasury
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value135135127127127127121121121121113109109898077757574726250165.932
Percentage of TreasuryStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.02.52.83.33.43.93.94.74.84.64.94.84.94.03.63.63.55.35.35.24.53.71.20.4

Stock Issued During Period Value New Issues

us-gaap:StockIssuedDuringPeriodValueNewIssues

us-gaap:StockIssuedDuringPeriodValueNewIssues


Stock
Period End2020-12-312020-09-302020-06-30
Value0.00.0469
Percentage of StockIssuedDuringPeriodValueNewIssues0.00.0100.0
Percentage of Assets0.00.00.0

us-gaap:StockIssuedDuringPeriodValueNewIssues us-gaap:StatementEquityComponents

cabo:CommonStockOutstanding


Stock
Period End2020-12-312020-09-302020-06-30
Value0.00.00.003
Percentage of StockIssuedDuringPeriodValueNewIssues0.00.00.0
Percentage of Assets0.00.00.0
Percentage of Assets cabo:CommonStockOutstanding0.00.00.0

us-gaap:AdditionalPaidInCapital


Stock
Period End2020-12-312020-09-302020-06-30
Value0.00.0469
Percentage of StockIssuedDuringPeriodValueNewIssues0.00.0100.0
Percentage of Assets0.00.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.0

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

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue


Adjustments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-09-30
Value5.2794.1274.0783.8673.4263.2213.1393.0583.0823.0213.2242.4182.5062.3382.8223.0762.4182.4272.6453.1873.423.0462.054
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Adjustments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-09-30
Value5.2794.1274.0783.8673.4263.2213.1393.0583.0823.0213.2242.4182.5062.3382.8223.0762.4182.4272.6453.1873.423.0462.053
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value1831631751261531181561221081041001111019410488527863
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax45.748.152.137.446.836.949.143.137.837.537.141.438.035.640.635.021.837.70.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value-2039300000.0-66698000.0-655070000.0-121770000.0-102060000.0-76017000.0-606620000.0-61805000.0-60848000.0-404970000.0-58692000.0-63787000.0-46197000.0-45619000.0-47706000.0-47655000.0-768820000.0-26985000.0-38927000.0
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax-507.6-19.5-194.5-35.9-31.1-23.7-190.3-21.7-21.3-145.4-21.7-23.8-17.2-17.2-18.5-18.8-319.0-13.00.0

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value767865429-22.23334974429-17.321-132.544224-14.248-13.849-37.684-25.332-13.941-12.366632-15.848-10.283
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax191.0253.5127.5-6.6106.323.1134.7-6.1-46.480.4-5.3-5.2-14.0-9.5-5.4-4.9262.5-7.60.0

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

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value-1088.333962-50.423-17.22400116-20.57743
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax-270.9282.0-15.0-5.1122.036.3-6.515.3

Amortization Of Financing Costs

us-gaap:AmortizationOfFinancingCosts

us-gaap:AmortizationOfFinancingCosts


Amortization
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value1800000.01100000.0975000.01100000.01100000.01106000.01119000.01100000.01300000.01118000.01075000.01100000.01000000.0970000.0991000.01000000.0800000.0400000.0409000.0424000.0405000.0404000.0
Percentage of AmortizationOfFinancingCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AmortizationOfFinancingCosts us-gaap:DebtInstrument

cabo:The2026Notes


Amortization
Period End2021-06-302021-03-31
Value20000.06000.0
Percentage of AmortizationOfFinancingCosts1.10.5

cabo:The2026NotesAndThe2028Notes


Amortization
Period End2021-06-302021-03-31
Value29000.08000.0
Percentage of AmortizationOfFinancingCosts1.60.7

cabo:The2028Notes


Amortization
Period End2021-06-302021-03-31
Value9000.02000.0
Percentage of AmortizationOfFinancingCosts0.50.2

Depreciation Depletion And Amortization

us-gaap:DepreciationDepletionAndAmortization

us-gaap:DepreciationDepletionAndAmortization


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value84686371656559485453495049485045463836363434323635363234
Percentage of DepreciationDepletionAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Accounts Receivable

us-gaap:IncreaseDecreaseInAccountsReceivable

us-gaap:IncreaseDecreaseInAccountsReceivable


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value6.842-8.416-11.4088.375.965-3.0663.830.5911.93-2.8311.779-6.1138.804-4.453-3.4678.2734.293-6.0345.988-0.1251.355-4.9674.30.6253.9-3.8495.00.421
Percentage of IncreaseDecreaseInAccountsReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Other Operating Capital Net

us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet

us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value-1.4812.912.4910.7482.1552.703-2.794-0.1451.073.3560.2022.276-1.2811.92615-1.697-0.8770.4150.024-1.087-0.616-0.328-2.113-0.381-0.2380.3143.077-0.784
Percentage of IncreaseDecreaseInOtherOperatingCapitalNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value1831631751261531181561221081041001111019410488527863
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax45.748.152.137.446.836.949.143.137.837.537.141.438.035.640.635.021.837.70.0

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312015-03-302014-12-312014-09-302014-06-302014-03-31
Value10668106666269534936384238434014331283324202627261921222226692624
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax26.420.131.519.619.021.616.817.512.713.915.614.316.315.355.612.411.916.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-09-30
Value1066810666626953493638423843401403128332420262719
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.098.3100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax26.420.131.519.619.021.616.817.512.713.915.614.316.315.354.612.411.916.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Share Based Compensation

us-gaap:ShareBasedCompensation

us-gaap:ShareBasedCompensation


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value5.2794.1274.0783.8673.4263.2213.1393.0583.0823.0213.2242.4182.5062.3382.8223.0762.4182.4272.6453.1873.423.0462.8752.0544.0110.2730.4820.498
Percentage of ShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value-2039300000.0-66698000.0-655070000.0-121770000.0-102060000.0-76017000.0-606620000.0-61805000.0-60848000.0-404970000.0-58692000.0-63787000.0-46197000.0-45619000.0-47706000.0-47655000.0-768820000.0-26985000.0-38927000.0
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax-507.6-19.5-194.5-35.9-31.1-23.7-190.3-21.7-21.3-145.4-21.7-23.8-17.2-17.2-18.5-18.8-319.0-13.00.0

Payments To Acquire Property Plant And Equipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value89717574786486656346586849415052403534263727522842314645
Percentage of PaymentsToAcquirePropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Payments To Acquire Investments

us-gaap:PaymentsToAcquireInvestments

us-gaap:PaymentsToAcquireInvestments


Payments
Period End2020-12-312020-09-30
Value57410.0
Percentage of PaymentsToAcquireInvestments100.0100.0

us-gaap:PaymentsToAcquireInvestments us-gaap:InvestmentType, us-gaap:SubsequentEventType

cabo:EquityInvestmentInWisper, us-gaap:SubsequentEvent


Payments
Period End2020-07-31
Value25
Percentage of PaymentsToAcquireInvestments0.0

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value767865429-22.23334974429-17.321-132.544224-14.248-13.849-37.684-25.332-13.941-12.366632-15.848-10.283
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax191.0253.5127.5-6.6106.323.1134.7-6.1-46.480.4-5.3-5.2-14.0-9.5-5.4-4.9262.5-7.60.0

Proceeds From Issuance Of Long Term Debt

us-gaap:ProceedsFromIssuanceOfLongTermDebt

us-gaap:ProceedsFromIssuanceOfLongTermDebt


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-312017-09-302015-12-312015-09-30
Value8008959500.00.01004500.05752500.00.00.00.00.00.0
Percentage of ProceedsFromIssuanceOfLongTermDebt100.0100.0100.00.00.0100.0100.00.0100.0100.00.00.00.00.00.00.0

us-gaap:ProceedsFromIssuanceOfLongTermDebt us-gaap:CreditFacility, us-gaap:LongtermDebtType

us-gaap:SecuredDebt, cabo:TermB3Loan


Proceeds
Period End2020-10-302019-06-142019-06-30
Value300325325
Percentage of ProceedsFromIssuanceOfLongTermDebt0.056.50.0

us-gaap:ProceedsFromIssuanceOfLongTermDebt us-gaap:StatementScenario, us-gaap:BusinessAcquisition, us-gaap:LineOfCreditFacility

srt:ScenarioForecast, cabo:Hargray, cabo:JPMorganChaseBank


Proceeds
Period End2021-06-30
Value900
Percentage of ProceedsFromIssuanceOfLongTermDebt112.5

Repayments Of Long Term Debt

us-gaap:RepaymentsOfLongTermDebt

us-gaap:RepaymentsOfLongTermDebt


Repayments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value6.5226.6374907.1251077.267.444.266864.5314.3784.382.8172.8162.8172.817931.2541.2551.2540.630.6280.625
Percentage of RepaymentsOfLongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RepaymentsOfLongTermDebt us-gaap:CreditFacility, us-gaap:LineOfCreditFacility, us-gaap:LongtermDebtType

us-gaap:SecuredDebt, cabo:CoBankACB, cabo:TermB1Loan


Repayments
Period End2020-10-30
Value483
Percentage of RepaymentsOfLongTermDebt0.0

us-gaap:RepaymentsOfLongTermDebt us-gaap:CreditFacility, us-gaap:LineOfCreditFacility, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType

us-gaap:SecuredDebt, cabo:CoBankACB, cabo:TermB1Loan, us-gaap:SubsequentEvent


Repayments
Period End2020-10-30
Value483
Percentage of RepaymentsOfLongTermDebt0.0

Payments Of Dividends

us-gaap:PaymentsOfDividends

us-gaap:PaymentsOfDividends


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-06-292015-06-17
Value151515151312121211111111101010108.5868.5798.5718.5718.6098.694-441.2180.0450450450
Percentage of PaymentsOfDividends100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0

Dividends

us-gaap:Dividends

us-gaap:Dividends


Dividends
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value151515151312121211111111101010
Percentage of Dividends100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Dividends us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Dividendsus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value151515151312121211111111101010
Percentage of Dividends100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Debt Instrument Interest Rate Stated Percentage

us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:DebtInstrument

us-gaap:DebtInstrumentInterestRateStatedPercentage

cabo:SeniorUnsecuredNotesDue2030


Debt
Period End2020-11-09
Value4.0
Percentage of DebtInstrumentInterestRateStatedPercentage100.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.0
Percentage of LongTermDebtAndCapitalLeaseObligations cabo:SeniorUnsecuredNotesDue20300.0

cabo:The2026Notes


Debt
Period End2021-03-05
Value0
Percentage of DebtInstrumentInterestRateStatedPercentage0.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.0
Percentage of LongTermDebtAndCapitalLeaseObligations cabo:The2026Notes0.0

cabo:The2028Notes


Debt
Period End2021-03-05
Value1.125
Percentage of DebtInstrumentInterestRateStatedPercentage0.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.0
Percentage of LongTermDebtAndCapitalLeaseObligations cabo:The2028Notes0.0

us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:DebtInstrument, us-gaap:SubsequentEventType

cabo:SeniorUnsecuredNotesDue2030, us-gaap:SubsequentEvent


Debt
Period End2020-10-26
Value4.0
Percentage of DebtInstrumentInterestRateStatedPercentage0.0
Percentage of LongTermDebtAndCapitalLeaseObligations0.0
Percentage of LongTermDebtAndCapitalLeaseObligations cabo:SeniorUnsecuredNotesDue2030 us-gaap:SubsequentEvent0.0

Effective Income Tax Rate Continuing Operations

us-gaap:EffectiveIncomeTaxRateContinuingOperations

us-gaap:EffectiveIncomeTaxRateContinuingOperations


Effective
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-09-302016-06-302015-09-30
Value-8.720.45.919.00.1740.085-0.0230.2410.2080.246-0.0060.2240.2260.196-0.0180.3460.3860.3730.4860.3830.38
Percentage of EffectiveIncomeTaxRateContinuingOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Liabilities

us-gaap:DeferredTaxLiabilities

us-gaap:DeferredTaxLiabilities


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value366303242205276276290
Percentage of DeferredTaxLiabilities100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Assets Net

us-gaap:DeferredTaxAssetsNet

us-gaap:DeferredTaxAssetsNet


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value6759111415129.229
Percentage of DeferredTaxAssetsNet100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Assets Valuation Allowance

us-gaap:DeferredTaxAssetsValuationAllowance

us-gaap:DeferredTaxAssetsValuationAllowance


Deferred
Period End2020-12-31
Value4322000.0
Percentage of DeferredTaxAssetsValuationAllowance100.0

cabo:BusinessAcquisitionProFormaAdjustmentsAcquisitionCosts us-gaap:BusinessAcquisition

cabo:BusinessAcquisitionProFormaAdjustmentsAcquisitionCosts

cabo:Hargray


Business
Period End2021-06-30
Value-11950000.0
Percentage of BusinessAcquisitionProFormaAdjustmentsAcquisitionCosts100.0

cabo:BusinessAcquisitionProFormaAdjustmentsDepreciationAndAmortization us-gaap:BusinessAcquisition

cabo:BusinessAcquisitionProFormaAdjustmentsDepreciationAndAmortization

cabo:Hargray


Business
Period End2021-06-302020-06-30
Value-2048000.0-2983000.0
Percentage of BusinessAcquisitionProFormaAdjustmentsDepreciationAndAmortization100.0100.0

cabo:BusinessAcquisitionProFormaAdjustmentsGainOnStepAcquisition us-gaap:BusinessAcquisition

cabo:BusinessAcquisitionProFormaAdjustmentsGainOnStepAcquisition

cabo:Hargray


Business
Period End2021-06-30
Value-33400000.0
Percentage of BusinessAcquisitionProFormaAdjustmentsGainOnStepAcquisition100.0

cabo:BusinessAcquisitionProFormaAdjustmentsIncomeTaxProvision us-gaap:BusinessAcquisition

cabo:BusinessAcquisitionProFormaAdjustmentsIncomeTaxProvision

cabo:Hargray


Business
Period End2021-06-302020-06-30
Value311.226
Percentage of BusinessAcquisitionProFormaAdjustmentsIncomeTaxProvision100.0100.0

cabo:BusinessAcquisitionProFormaAdjustmentsInterestExpense us-gaap:BusinessAcquisition

cabo:BusinessAcquisitionProFormaAdjustmentsInterestExpense

cabo:Hargray


Business
Period End2021-06-302020-06-30
Value-768000.0-1922000.0
Percentage of BusinessAcquisitionProFormaAdjustmentsInterestExpense100.0100.0

cabo:BusinessCombinationStepAcquisitionEquityInterestInAcquireeCarryingValue us-gaap:BusinessAcquisition

cabo:BusinessCombinationStepAcquisitionEquityInterestInAcquireeCarryingValue

cabo:Hargray


Business
Period End2021-05-03
Value113
Percentage of BusinessCombinationStepAcquisitionEquityInterestInAcquireeCarryingValue100.0

cabo:ChangeInAccruedExpensesRelatedToCapitalExpenditures

cabo:ChangeInAccruedExpensesRelatedToCapitalExpenditures


Change
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value-3.612-5.0043.654.898-7.4988.238-5.942-3.979-2.3417.751-0.265-4.257-2.3094.826-2.185-3.4870.3621.143-1.5166.748-8.40719-14.385-1.005-0.555.715
Percentage of ChangeInAccruedExpensesRelatedToCapitalExpenditures100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

cabo:DebtInstrumentPrepaymentPenaltyPrepaidWithinSixMonthsPercent us-gaap:CreditFacility, us-gaap:LongtermDebtType

cabo:DebtInstrumentPrepaymentPenaltyPrepaidWithinSixMonthsPercent

us-gaap:SecuredDebt, cabo:TermLoanB4


Debt
Period End2021-05-03
Value1.0
Percentage of DebtInstrumentPrepaymentPenaltyPrepaidWithinSixMonthsPercent100.0

cabo:DebtInstrumentPrepaymentPenaltyPrepaidWithinSixMonthsPercent us-gaap:CreditFacility, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType

us-gaap:SecuredDebt, cabo:TermLoanB4, us-gaap:SubsequentEvent


Debt
Period End2021-05-03
Value1.0
Percentage of DebtInstrumentPrepaymentPenaltyPrepaidWithinSixMonthsPercent100.0

cabo:DebtInstrumentRedemptionPricePercentageOfPrincipalAmountRedeemedNotExceedingTheNetCashProceedsFromOneOrMoreEquityOfferingsAtARedemptionPriceEqualTo104OfThePrincipalAmount us-gaap:DebtInstrument

cabo:DebtInstrumentRedemptionPricePercentageOfPrincipalAmountRedeemedNotExceedingTheNetCashProceedsFromOneOrMoreEquityOfferingsAtARedemptionPriceEqualTo104OfThePrincipalAmount

cabo:SeniorUnsecuredNotesDue2030


Debt
Period End2020-11-09
Value40.0
Percentage of DebtInstrumentRedemptionPricePercentageOfPrincipalAmountRedeemedNotExceedingTheNetCashProceedsFromOneOrMoreEquityOfferingsAtARedemptionPriceEqualTo104OfThePrincipalAmount100.0

cabo:EffectiveIncomeTaxRateReconciliationImpactOfReversalOfDeferredTaxLiabilityAndPreExistingEquityInvestment

cabo:EffectiveIncomeTaxRateReconciliationImpactOfReversalOfDeferredTaxLiabilityAndPreExistingEquityInvestment


Effective
Period End2021-06-30
Value-35400000.0
Percentage of EffectiveIncomeTaxRateReconciliationImpactOfReversalOfDeferredTaxLiabilityAndPreExistingEquityInvestment100.0

cabo:EffectiveIncomeTaxRateReconciliationNetOperatingLossCarrybackProvisionOfCaresAct

cabo:EffectiveIncomeTaxRateReconciliationNetOperatingLossCarrybackProvisionOfCaresAct


Effective
Period End2020-09-302020-06-30
Value-3200000.0-2800000.0
Percentage of EffectiveIncomeTaxRateReconciliationNetOperatingLossCarrybackProvisionOfCaresAct100.0100.0

cabo:EffectiveIncomeTaxRateReconciliationNetOperatingLossCarrybackProvisionOfTheCaresAct

cabo:EffectiveIncomeTaxRateReconciliationNetOperatingLossCarrybackProvisionOfTheCaresAct


Effective
Period End2021-06-30
Value2800000.0
Percentage of EffectiveIncomeTaxRateReconciliationNetOperatingLossCarrybackProvisionOfTheCaresAct100.0

cabo:FairValueAdjustmentCallAndPutOptions

cabo:FairValueAdjustmentCallAndPutOptions


Fair
Period End2021-06-302021-03-31
Value21-5.56
Percentage of FairValueAdjustmentCallAndPutOptions100.0100.0

cabo:IncomeLossFromContinuingOperationsNetOfTaxBeforeEquityMethodInvestments

cabo:IncomeLossFromContinuingOperationsNetOfTaxBeforeEquityMethodInvestments


Income
Period End2021-06-302021-03-312020-06-302020-03-31
Value107696269
Percentage of IncomeLossFromContinuingOperationsNetOfTaxBeforeEquityMethodInvestments100.0100.0100.0100.0

cabo:IncomeTaxBenefitCaresAct

cabo:IncomeTaxBenefitCaresAct


Income
Period End2021-03-31
Value7.0
Percentage of IncomeTaxBenefitCaresAct100.0

cabo:LineOfCreditFacilityIncreaseDecreaseInMaximumBorrowingCapacity us-gaap:CreditFacility, us-gaap:LineOfCreditFacility

cabo:LineOfCreditFacilityIncreaseDecreaseInMaximumBorrowingCapacity

us-gaap:RevolvingCreditFacility, cabo:JPMorganChaseBank


Line
Period End2020-10-30
Value150
Percentage of LineOfCreditFacilityIncreaseDecreaseInMaximumBorrowingCapacity100.0

cabo:LineOfCreditFacilityIncreaseDecreaseInMaximumBorrowingCapacity us-gaap:CreditFacility, us-gaap:LineOfCreditFacility, us-gaap:SubsequentEventType

us-gaap:RevolvingCreditFacility, cabo:JPMorganChaseBank, us-gaap:SubsequentEvent


Line
Period End2020-10-30
Value150
Percentage of LineOfCreditFacilityIncreaseDecreaseInMaximumBorrowingCapacity100.0

cabo:LoanCommitmentTerminationAmount us-gaap:BusinessAcquisition, us-gaap:LineOfCreditFacility, us-gaap:LongtermDebtType

cabo:LoanCommitmentTerminationAmount

cabo:Hargray, cabo:JPMorganChaseBank, us-gaap:BridgeLoan


Loan
Period End2021-03-31
Value900
Percentage of LoanCommitmentTerminationAmount100.0

cabo:LongTermDebtAmortizationRate us-gaap:CreditFacility, us-gaap:LongtermDebtType

cabo:LongTermDebtAmortizationRate

us-gaap:SecuredDebt, cabo:TermB1Loan


Long
Period End2020-09-302020-06-302020-03-31
Value0.9900.01
Percentage of LongTermDebtAmortizationRate100.00.0100.0

us-gaap:SecuredDebt, cabo:TermB2Loan


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value01.000.9900.01
Percentage of LongTermDebtAmortizationRate0.00.00.0100.00.0100.0

us-gaap:SecuredDebt, cabo:TermB3Loan


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value01.000.9900.01
Percentage of LongTermDebtAmortizationRate0.00.00.0100.00.0100.0

us-gaap:SecuredDebt, cabo:TermLoanB4


Long
Period End2021-05-03
Value1.0
Percentage of LongTermDebtAmortizationRate0.0

cabo:LongTermDebtAmortizationRate us-gaap:CreditFacility, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType

us-gaap:SecuredDebt, cabo:TermLoanB4, us-gaap:SubsequentEvent


Long
Period End2021-05-03
Value1.0
Percentage of LongTermDebtAmortizationRate0.0

cabo:OperatingExpensesExcludingDepreciationAndAmortization

cabo:OperatingExpensesExcludingDepreciationAndAmortization


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312015-03-302014-12-312014-09-302014-06-302014-03-31
Value112101991071061051039495949191919492918369160767576152751668116615779161169
Percentage of OperatingExpensesExcludingDepreciationAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

cabo:OriginationOfNotesReceivable

cabo:OriginationOfNotesReceivable


Origination
Period End2020-12-312020-09-302020-06-302020-03-312019-06-302019-03-31
Value003748000.03540000.000
Percentage of OriginationOfNotesReceivable0.00.0100.0100.00.00.0

cabo:OtherComprehensiveIncomeLossDeferredGainLossOnCashFlowHedgesAndOtherNetOfTax

cabo:OtherComprehensiveIncomeLossDeferredGainLossOnCashFlowHedgesAndOtherNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-16.02155155.807-9.459-84.62523-28.066-33.97-29.0690.2540.0010.00.001
Percentage of OtherComprehensiveIncomeLossDeferredGainLossOnCashFlowHedgesAndOtherNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0

cabo:OtherComprehensiveIncomeLossDeferredGainLossOnCashFlowHedgesAndOtherNetOfTax us-gaap:CumulativeEffectPeriodOfAdoption

srt:CumulativeEffectPeriodOfAdoptionAdjustment


Other
Period End2021-03-31
Value55
Percentage of OtherComprehensiveIncomeLossDeferredGainLossOnCashFlowHedgesAndOtherNetOfTax100.0

cabo:OtherComprehensiveIncomeLossDeferredGainLossOnCashFlowHedgesAndOtherNetOfTax us-gaap:CumulativeEffectPeriodOfAdoption, us-gaap:StatementEquityComponents

srt:CumulativeEffectPeriodOfAdoptionAdjustment, us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-03-31
Value55
Percentage of OtherComprehensiveIncomeLossDeferredGainLossOnCashFlowHedgesAndOtherNetOfTax100.0

cabo:OtherComprehensiveIncomeLossDeferredGainLossOnCashFlowHedgesAndOtherNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-16.021155.807-9.459-84.62523-28.066-33.97-29.069
Percentage of OtherComprehensiveIncomeLossDeferredGainLossOnCashFlowHedgesAndOtherNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0

cabo:SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueExercised us-gaap:AwardType

cabo:SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueExercised

us-gaap:StockAppreciationRightsSARS


Sharebased
Period End2020-12-31
Value6.47
Percentage of SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueExercised100.0

us-gaap:AdjustmentForAmortization us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:AdjustmentForAmortization

cabo:MBI


Adjustment
Period End2021-06-302021-03-31
Value4000000.02700000.0
Percentage of AdjustmentForAmortization100.0100.0

us-gaap:AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation


Adjustments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value117000.07741000.092000.038000.027000.05796000.0125000.0128000.0210000.02554000.034000.0-80000.02000.07199000.02452000.02093000.0107000.0331000.0
Percentage of AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation us-gaap:StatementEquityComponents

us-gaap:TreasuryStock


Adjustments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value117000.07741000.092000.038000.027000.05796000.0125000.0128000.0210000.02554000.034000.0-80000.02000.07199000.02452000.02093000.0107000.0331000.0
Percentage of AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AllowanceForDoubtfulAccountsReceivableRecoveries

us-gaap:AllowanceForDoubtfulAccountsReceivableRecoveries


Allowance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1390000.01930000.01663000.01102000.01412000.01949000.01317000.01412000.01341000.02090000.0
Percentage of AllowanceForDoubtfulAccountsReceivableRecoveries100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AllowanceForDoubtfulAccountsReceivableWriteOffs

us-gaap:AllowanceForDoubtfulAccountsReceivableWriteOffs


Allowance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1.4052.4513.8836.4820.9662.271-3.0793.4192.254.754
Percentage of AllowanceForDoubtfulAccountsReceivableWriteOffs100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AmortizationOfDebtDiscountPremium us-gaap:DebtInstrument

us-gaap:AmortizationOfDebtDiscountPremium

cabo:The2026Notes


Amortization
Period End2021-06-302021-03-31
Value748000.0222000.0
Percentage of AmortizationOfDebtDiscountPremium100.0100.0

cabo:The2026NotesAndThe2028Notes


Amortization
Period End2021-06-302021-03-31
Value1069000.0317000.0
Percentage of AmortizationOfDebtDiscountPremium142.9142.8

cabo:The2028Notes


Amortization
Period End2021-06-302021-03-31
Value321000.095000.0
Percentage of AmortizationOfDebtDiscountPremium42.942.8

us-gaap:AmortizationOfFinancingCostsAndDiscounts

us-gaap:AmortizationOfFinancingCostsAndDiscounts


Amortization
Period End2021-06-302021-03-312020-06-302020-03-31
Value2875000.01432000.01106000.01106000.0
Percentage of AmortizationOfFinancingCostsAndDiscounts100.0100.0100.0100.0

us-gaap:BusinessAcquisitionsProFormaNetIncomeLoss us-gaap:BusinessAcquisition

us-gaap:BusinessAcquisitionsProFormaNetIncomeLoss

cabo:Hargray


Business
Period End2021-06-302020-06-30
Value4453
Percentage of BusinessAcquisitionsProFormaNetIncomeLoss100.0100.0

us-gaap:BusinessAcquisitionsProFormaRevenue us-gaap:BusinessAcquisition

us-gaap:BusinessAcquisitionsProFormaRevenue

cabo:Hargray


Business
Period End2021-06-302020-06-30
Value428388
Percentage of BusinessAcquisitionsProFormaRevenue100.0100.0

us-gaap:BusinessCombinationAcquisitionRelatedCosts

us-gaap:BusinessCombinationAcquisitionRelatedCosts


Business
Period End2021-06-302020-06-30
Value4800000.01300000.0
Percentage of BusinessCombinationAcquisitionRelatedCosts100.0100.0

us-gaap:BusinessCombinationConsiderationTransferredIncludingEquityInterestInAcquireeHeldPriorToCombination1 us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationConsiderationTransferredIncludingEquityInterestInAcquireeHeldPriorToCombination1

cabo:Hargray


Business
Period End2021-05-03
Value2200
Percentage of BusinessCombinationConsiderationTransferredIncludingEquityInterestInAcquireeHeldPriorToCombination1100.0

us-gaap:BusinessCombinationConsiderationTransferredLiabilitiesIncurred us-gaap:StatementScenario, us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationConsiderationTransferredLiabilitiesIncurred

srt:ScenarioForecast, cabo:Hargray


Business
Period End2021-06-30
Value689
Percentage of BusinessCombinationConsiderationTransferredLiabilitiesIncurred100.0

us-gaap:BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual

cabo:Hargray


Business
Period End2021-06-30
Value4400000.0
Percentage of BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual100.0

us-gaap:BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual

cabo:Hargray


Business
Period End2021-06-30
Value50
Percentage of BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual100.0

us-gaap:BusinessCombinationStepAcquisitionEquityInterestInAcquireeFairValue1 us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationStepAcquisitionEquityInterestInAcquireeFairValue1

cabo:Hargray


Business
Period End2021-05-03
Value146
Percentage of BusinessCombinationStepAcquisitionEquityInterestInAcquireeFairValue1100.0

us-gaap:BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGain us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGain

cabo:Hargray


Business
Period End2021-05-03
Value33
Percentage of BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGain100.0

us-gaap:CapitalizedContractCostAmortization

us-gaap:CapitalizedContractCostAmortization


Capitalized
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value1265000.01468000.01436000.01343000.01338000.01355000.01149000.0901000.0942000.0
Percentage of CapitalizedContractCostAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerLiabilityRevenueRecognized

us-gaap:ContractWithCustomerLiabilityRevenueRecognized


Contract
Period End2021-06-302021-03-31
Value0.716
Percentage of ContractWithCustomerLiabilityRevenueRecognized100.0100.0

us-gaap:DebtInstrumentBasisSpreadOnVariableRate1 us-gaap:CreditFacility, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType, us-gaap:VariableRate

us-gaap:DebtInstrumentBasisSpreadOnVariableRate1

us-gaap:SecuredDebt, cabo:TermLoanB4, us-gaap:SubsequentEvent, us-gaap:BaseRate


Debt
Period End2021-05-03
Value1.0
Percentage of DebtInstrumentBasisSpreadOnVariableRate1100.0

us-gaap:SecuredDebt, cabo:TermLoanB4, us-gaap:SubsequentEvent, us-gaap:LondonInterbankOfferedRateLIBOR


Debt
Period End2021-05-03
Value2.0
Percentage of DebtInstrumentBasisSpreadOnVariableRate1200.0

us-gaap:DebtInstrumentBasisSpreadOnVariableRate1 us-gaap:CreditFacility, us-gaap:LongtermDebtType, us-gaap:VariableRate

us-gaap:SecuredDebt, cabo:TermB2Loan, us-gaap:LondonInterbankOfferedRateLIBOR


Debt
Period End2021-03-312020-03-31
Value2.00.02
Percentage of DebtInstrumentBasisSpreadOnVariableRate10.00.0

us-gaap:SecuredDebt, cabo:TermB3Loan, us-gaap:LondonInterbankOfferedRateLIBOR


Debt
Period End2021-03-312020-03-312019-04-12
Value2.00.020.02
Percentage of DebtInstrumentBasisSpreadOnVariableRate10.00.00.0

us-gaap:SecuredDebt, cabo:TermLoanA2, us-gaap:LondonInterbankOfferedRateLIBOR


Debt
Period End2021-03-312020-03-31
Value1.50.015
Percentage of DebtInstrumentBasisSpreadOnVariableRate10.00.0

us-gaap:SecuredDebt, cabo:TermLoanB4, us-gaap:BaseRate


Debt
Period End2021-05-03
Value1.0
Percentage of DebtInstrumentBasisSpreadOnVariableRate1100.0

us-gaap:SecuredDebt, cabo:TermLoanB4, us-gaap:LondonInterbankOfferedRateLIBOR


Debt
Period End2021-05-03
Value2.0
Percentage of DebtInstrumentBasisSpreadOnVariableRate1200.0

us-gaap:DebtInstrumentBasisSpreadOnVariableRate1 us-gaap:Range, us-gaap:CreditFacility, us-gaap:LongtermDebtType, us-gaap:VariableRate

srt:Maximum, us-gaap:SecuredDebt, cabo:TermLoanA2, us-gaap:LondonInterbankOfferedRateLIBOR


Debt
Period End2021-03-312020-03-31
Value1.750.0175
Percentage of DebtInstrumentBasisSpreadOnVariableRate10.00.0

srt:Minimum, us-gaap:SecuredDebt, cabo:TermLoanA2, us-gaap:LondonInterbankOfferedRateLIBOR


Debt
Period End2021-03-312020-03-31
Value1.250.0125
Percentage of DebtInstrumentBasisSpreadOnVariableRate10.00.0

us-gaap:DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger us-gaap:DebtInstrument

us-gaap:DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger

cabo:The2026NotesAndThe2028Notes


Debt
Period End2021-03-05
Value130.0
Percentage of DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger100.0

us-gaap:DebtInstrumentRedemptionPricePercentage us-gaap:DebtInstrument

us-gaap:DebtInstrumentRedemptionPricePercentage

cabo:The2026NotesAndThe2028Notes


Debt
Period End2021-03-05
Value100.0
Percentage of DebtInstrumentRedemptionPricePercentage100.0

us-gaap:DebtInstrumentRedemptionPricePercentage us-gaap:StatementScenario, us-gaap:DebtInstrument

cabo:CompanyUndergoesAFundamentalChange, cabo:The2026NotesAndThe2028Notes


Debt
Period End2021-03-05
Value100.0
Percentage of DebtInstrumentRedemptionPricePercentage100.0

us-gaap:DebtInstrumentRedemptionPricePercentageOfPrincipalAmountRedeemed us-gaap:DebtInstrument

us-gaap:DebtInstrumentRedemptionPricePercentageOfPrincipalAmountRedeemed

cabo:SeniorUnsecuredNotesDue2030


Debt
Period End2020-11-09
Value100.0
Percentage of DebtInstrumentRedemptionPricePercentageOfPrincipalAmountRedeemed100.0

us-gaap:Depreciation

us-gaap:Depreciation


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value6558515954545244504946474646484244383636343432363536323433
Percentage of Depreciation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DepreciationAndAmortization

us-gaap:DepreciationAndAmortization


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value8468637165655948545349504948504546383636343432363536323433
Percentage of DepreciationAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount

us-gaap:EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount


Effective
Period End2020-12-312020-09-302020-06-30
Value-4993000.0-800000.0-1000000.0
Percentage of EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount100.0100.0100.0

us-gaap:EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense

us-gaap:EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense


Employee
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value0.93.61.41.72.75.21.61.01.7
Percentage of EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GainLossOnDispositionOfAssets1

us-gaap:GainLossOnDispositionOfAssets1


Gain
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value-1511000.0-988000.05621000.0-2812000.0-2362000.0-910000.0-1103000.0-1659000.0-3140000.0-2734000.0-6634000.0-3754000.0-2506000.0-462000.06146000.0-1196000.0-1060000.0-157000.0-408000.0
Percentage of GainLossOnDispositionOfAssets1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GainLossOnSaleOfBusiness

us-gaap:GainLossOnSaleOfBusiness


Gain
Period End2021-06-302021-03-31
Value-1.074-0.568
Percentage of GainLossOnSaleOfBusiness100.0100.0

us-gaap:GainLossOnSaleOfPropertyPlantEquipment

us-gaap:GainLossOnSaleOfPropertyPlantEquipment


Gain
Period End2021-06-302021-03-312020-06-302020-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value-1058000.0120000.0-988000.05621000.0-1196000.0-1060000.0-157000.0-408000.0531000.0-216000.0-500000.0-417000.0-958000.0413000.0
Percentage of GainLossOnSaleOfPropertyPlantEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GoodwillWrittenOffRelatedToSaleOfBusinessUnit us-gaap:IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperations

us-gaap:GoodwillWrittenOffRelatedToSaleOfBusinessUnit

cabo:DispositionOfTheAnnistonExchange


Goodwill
Period End2020-10-01
Value4300000.0
Percentage of GoodwillWrittenOffRelatedToSaleOfBusinessUnit100.0

us-gaap:IncomeLossFromEquityMethodInvestments

us-gaap:IncomeLossFromEquityMethodInvestments


Income
Period End2021-06-302021-03-31
Value-1074000.0-568000.0
Percentage of IncomeLossFromEquityMethodInvestments100.0100.0

us-gaap:IncomeLossFromEquityMethodInvestments us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

cabo:MBI


Income
Period End2021-06-302021-03-31
Value1600000.01400000.0
Percentage of IncomeLossFromEquityMethodInvestments-149.0-246.5

us-gaap:IncomeLossFromEquityMethodInvestments us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

cabo:MBI


Income
Period End2021-06-302021-03-31
Value-2407000.0-1214000.0
Percentage of IncomeLossFromEquityMethodInvestments224.1213.7

cabo:Wisper


Income
Period End2021-06-302021-03-31
Value1333000.0646000.0
Percentage of IncomeLossFromEquityMethodInvestments-124.1-113.7

us-gaap:IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance

us-gaap:IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance


Income
Period End2021-06-30
Value5200000.0
Percentage of IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance100.0

us-gaap:IncomeTaxReconciliationStateAndLocalIncomeTaxes

us-gaap:IncomeTaxReconciliationStateAndLocalIncomeTaxes


Income
Period End2020-12-312019-06-30
Value141.2
Percentage of IncomeTaxReconciliationStateAndLocalIncomeTaxes100.0100.0

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value12-3.0429.8995.26910-13.7897.7293.7193.5621.442-13.4161.002-3.776-11.663137.455-6.096-7.977-2.38111-7.4472.473-9.233168.742-0.428-3.2176.365
Percentage of IncreaseDecreaseInAccountsPayableAndAccruedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInContractWithCustomerLiability

us-gaap:IncreaseDecreaseInContractWithCustomerLiability


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-47000.02568000.0-4388000.0-266000.0447000.01246000.0-723000.0-511000.0-1018000.0820000.0273000.0-110000.01011000.02772000.0
Percentage of IncreaseDecreaseInContractWithCustomerLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInDeferredIncomeTaxes

us-gaap:IncreaseDecreaseInDeferredIncomeTaxes


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value18-7.131-39.356-16.999-10.719-20.108-27.299-11.065-4.545-7.102-16.347-9.067-3.849-5.71
Percentage of IncreaseDecreaseInDeferredIncomeTaxes100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInIncomeTaxesReceivable

us-gaap:IncreaseDecreaseInIncomeTaxesReceivable


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value1.914-26.132-1.77928-1.765130.385-0.932-1.965-6.0552.147-0.447-7.769-4.5493.2041.58816-4.547
Percentage of IncreaseDecreaseInIncomeTaxesReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value-5.21412-3.3721.542-4.8388.857-3.715-2.822-1.3428.341-3.604-1.41-1.378.576-4.189-2.131-2.0893.336
Percentage of IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestExpenseDebtExcludingAmortization us-gaap:DebtInstrument

us-gaap:InterestExpenseDebtExcludingAmortization

cabo:The2026NotesAndThe2028Notes


Interest
Period End2021-06-302021-03-31
Value970000.0291000.0
Percentage of InterestExpenseDebtExcludingAmortization100.0100.0

cabo:The2028Notes


Interest
Period End2021-06-302021-03-31
Value970000.0291000.0
Percentage of InterestExpenseDebtExcludingAmortization100.0100.0

us-gaap:InterestOnConvertibleDebtNetOfTax

us-gaap:InterestOnConvertibleDebtNetOfTax


Interest
Period End2021-06-302021-03-31
Value1551000.0462000.0
Percentage of InterestOnConvertibleDebtNetOfTax100.0100.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax us-gaap:DerivativeInstrumentRisk

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax

us-gaap:InterestRateSwap


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value21-73.582-20.916-7.6112-112.315-31.263745-38.586
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax us-gaap:DerivativeInstrumentRisk

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax

us-gaap:InterestRateSwap


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value4.989-18.118-5.163-1.8063.095-27.686-7.7119.17911-9.517
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax

us-gaap:InterestRateSwap, us-gaap:InterestExpense


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-7803000.0-7649000.0-7759000.0-7702000.0-4964000.0-2084000.0-1766000.0-888000.0-383000.0-68000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsOfDebtIssuanceCosts

us-gaap:PaymentsOfDebtIssuanceCosts


Payments
Period End2021-06-302021-03-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-312017-09-302015-12-312015-09-30
Value121.2910.0-0.00.0880.0859.2612.410.00.00.00.00.00.0
Percentage of PaymentsOfDebtIssuanceCosts100.0100.00.00.0100.0100.0100.0100.00.00.00.00.00.00.0

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value117000.07741000.092000.0100000.0100000.05796000.0125000.0100000.0200000.02554000.034000.0200000.0100000.07199000.02452000.02100000.0100000.0331000.0
Percentage of PaymentsRelatedToTaxWithholdingForShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsToAcquireBusinessesGross us-gaap:BusinessAcquisition

us-gaap:PaymentsToAcquireBusinessesGross

cabo:Hargray


Payments
Period End2021-05-03
Value2000
Percentage of PaymentsToAcquireBusinessesGross100.0

cabo:ValuNet


Payments
Period End2020-07-01
Value38
Percentage of PaymentsToAcquireBusinessesGross0.0

cabo:Valunet


Payments
Period End2020-07-01
Value38
Percentage of PaymentsToAcquireBusinessesGross0.0

us-gaap:PaymentsToAcquireBusinessesGross us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType

cabo:Hargray, us-gaap:SubsequentEvent


Payments
Period End2021-05-03
Value2200
Percentage of PaymentsToAcquireBusinessesGross110.0

us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired

us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired


Payments
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-312017-09-30
Value0.0380.0-0.05260.00.03560.00.00.0-0.836
Percentage of PaymentsToAcquireBusinessesNetOfCashAcquired0.0100.00.00.0100.00.00.0100.00.00.00.0100.0

us-gaap:PaymentsToAcquireEquityMethodInvestments us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

us-gaap:PaymentsToAcquireEquityMethodInvestments

cabo:MegaBroadbandInvestmentsHoldings


Payments
Period End2020-11-12
Value574
Percentage of PaymentsToAcquireEquityMethodInvestments100.0

cabo:WisperIsp


Payments
Period End2020-07-31
Value11
Percentage of PaymentsToAcquireEquityMethodInvestments0.0

us-gaap:ProceedsFromSaleAndCollectionOfNotesReceivable

us-gaap:ProceedsFromSaleAndCollectionOfNotesReceivable


Proceeds
Period End2020-12-31
Value0
Percentage of ProceedsFromSaleAndCollectionOfNotesReceivable0.0

us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment

us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value0.0780.1510.1130.00.0990.518-0.0110.0520.6726.326-0.3610.2581.3430.2260.6420.4220.837100.95-0.0820.2640.1950.6370.2860.0060.0081.0150.503
Percentage of ProceedsFromSaleOfPropertyPlantAndEquipment100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProvisionForDoubtfulAccounts

us-gaap:ProvisionForDoubtfulAccounts


Provision
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1484000.0643000.0249000.0-796000.05956000.02118000.01916000.01890000.01124000.01570000.0
Percentage of ProvisionForDoubtfulAccounts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProvisionForDoubtfulAccounts us-gaap:BusinessAcquisition

cabo:Hargray


Provision
Period End2021-05-03
Value1400000.0
Percentage of ProvisionForDoubtfulAccounts0.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate

us-gaap:StockAppreciationRightsSARS


Share
Period End2021-06-302021-03-312020-12-312015-12-31
Value00.45-0.010
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate0.0100.0100.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate

us-gaap:StockAppreciationRightsSARS


Share
Period End2021-06-302021-03-312020-12-31
Value027.370.34
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate0.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate

us-gaap:StockAppreciationRightsSARS


Share
Period End2021-06-302021-03-312020-12-31
Value00.54-0.02
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate0.0100.0100.0

us-gaap:TreasuryStockSharesAcquired

us-gaap:TreasuryStockSharesAcquired


Treasury
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-12-312016-06-30
Value0000000005984.04786.0030717.03311.000700.0-37735.025933.0
Percentage of TreasuryStockSharesAcquired0.00.00.00.00.00.00.00.00.0100.0100.00.0100.0100.00.00.0100.0100.0100.0

us-gaap:TreasuryStockValueAcquiredCostMethod

us-gaap:TreasuryStockValueAcquiredCostMethod


Treasury
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-09-30
Value0.00.00.00.00.00.00.00.00.05.0734.00.0202.2950.1290.00.00.3990.2299.6311345.932
Percentage of TreasuryStockValueAcquiredCostMethod0.00.00.00.00.00.00.00.00.0100.0100.00.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0

us-gaap:UnrealizedGainLossOnDerivatives us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:DerivativeInstrumentRisk

us-gaap:UnrealizedGainLossOnDerivatives

cabo:MBI, cabo:MBINetOption


Unrealized
Period End2021-06-302021-03-31
Value-21350000.05560000.0
Percentage of UnrealizedGainLossOnDerivatives100.0100.0

us-gaap:WriteOffOfDeferredDebtIssuanceCost

us-gaap:WriteOffOfDeferredDebtIssuanceCost


Write
Period End2021-06-302021-03-312019-12-312019-09-302018-12-312018-09-302017-12-312017-09-30
Value1644000.0487000.03000.000000
Percentage of WriteOffOfDeferredDebtIssuanceCost100.0100.0100.00.00.00.00.00.0

cabo:AssetsHeldForSaleNoncurrent

cabo:AssetsHeldForSaleNoncurrent


Assets
Period End2020-09-302019-12-312018-12-31
Value160.04.626
Percentage of AssetsHeldForSaleNoncurrent100.00.0100.0

cabo:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayableAndAccruedLiabilities us-gaap:BusinessAcquisition

cabo:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayableAndAccruedLiabilities

cabo:Hargray


Business
Period End2021-05-03
Value36
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayableAndAccruedLiabilities100.0

cabo:ContractualObligationFranchiseAgreementsNonperformance

cabo:ContractualObligationFranchiseAgreementsNonperformance


Contractual
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value311813125.14.64.6
Percentage of ContractualObligationFranchiseAgreementsNonperformance100.0100.0100.0100.0100.0100.0100.0

cabo:DebtInstrumentCovenantRepurchasePercentageOfPrinciple us-gaap:DebtInstrument

cabo:DebtInstrumentCovenantRepurchasePercentageOfPrinciple

cabo:SeniorUnsecuredNotesDue2030


Debt
Period End2020-11-09
Value101.0
Percentage of DebtInstrumentCovenantRepurchasePercentageOfPrinciple100.0

cabo:DeferredCommissionsCurrent

cabo:DeferredCommissionsCurrent


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value4028000.03997000.04026000.04036000.03879000.03654000.03586000.02902000.0
Percentage of DeferredCommissionsCurrent100.0100.0100.0100.0100.0100.0100.0100.0

cabo:DeferredCommissionsNoncurrent

cabo:DeferredCommissionsNoncurrent


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value6713000.05958000.05798000.05633000.05339000.05252000.05042000.04867000.0
Percentage of DeferredCommissionsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0

cabo:DeferredTaxAssetsLeaseLiabilities

cabo:DeferredTaxAssetsLeaseLiabilities


Deferred
Period End2020-12-312019-12-31
Value3079000.04659000.0
Percentage of DeferredTaxAssetsLeaseLiabilities100.0100.0

cabo:EnterpriseValue us-gaap:StatementScenario, us-gaap:BusinessAcquisition

cabo:EnterpriseValue

srt:ScenarioForecast, cabo:Hargray


Enterprise
Period End2021-06-30
Value2200
Percentage of EnterpriseValue100.0

cabo:EquitySecuritiesWithoutReadilyDeterminableFairValueCostMethodInvestmentAmount

cabo:EquitySecuritiesWithoutReadilyDeterminableFairValueCostMethodInvestmentAmount


Equity
Period End2021-06-302021-03-312020-12-312019-12-31
Value411501500.206
Percentage of EquitySecuritiesWithoutReadilyDeterminableFairValueCostMethodInvestmentAmount100.0100.0100.0100.0

cabo:EquitySecuritiesWithoutReadilyDeterminableFairValueCostMethodInvestmentAmount us-gaap:InvestmentType

cabo:OtherCostMethodInvestment


Equity
Period End2021-06-302021-03-312020-12-312019-12-31
Value149.947100.206
Percentage of EquitySecuritiesWithoutReadilyDeterminableFairValueCostMethodInvestmentAmount34.96.66.7100.0

cabo:FinitelivedIntangibleAssetExpectedAmortizationAfterYearFour

cabo:FinitelivedIntangibleAssetExpectedAmortizationAfterYearFour


Finitelived
Period End2020-09-30
Value161
Percentage of FinitelivedIntangibleAssetExpectedAmortizationAfterYearFour100.0

cabo:FinitelivedIntangibleAssetsAmortizationExpenseAfterYearFour

cabo:FinitelivedIntangibleAssetsAmortizationExpenseAfterYearFour


Finitelived
Period End2021-06-302021-03-31
Value400140
Percentage of FinitelivedIntangibleAssetsAmortizationExpenseAfterYearFour100.0100.0

cabo:FranchiseFeesCurrent us-gaap:BalanceSheetLocation

cabo:FranchiseFeesCurrent

us-gaap:AccountsPayableAndAccruedLiabilities


Franchise
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value4301000.03243000.04021000.03759000.03904000.03662000.04201000.03870000.0
Percentage of FranchiseFeesCurrent100.0100.0100.0100.0100.0100.0100.0100.0

cabo:InvestmentOwnershipPercentage us-gaap:InvestmentType, us-gaap:SubsequentEventType

cabo:InvestmentOwnershipPercentage

cabo:Hargray, us-gaap:SubsequentEvent


Investment
Period End2020-10-01
Value20.0
Percentage of InvestmentOwnershipPercentage100.0

cabo:LesseeOperatingLeaseAndFinanceLeaseLiabilityToBePaid

cabo:LesseeOperatingLeaseAndFinanceLeaseLiabilityToBePaid


Lessee
Period End2020-12-31
Value27
Percentage of LesseeOperatingLeaseAndFinanceLeaseLiabilityToBePaid100.0

cabo:LesseeOperatingLeaseAndFinanceLeaseLiabilityToBePaidAfterYearFive

cabo:LesseeOperatingLeaseAndFinanceLeaseLiabilityToBePaidAfterYearFive


Lessee
Period End2020-12-31
Value9981000.0
Percentage of LesseeOperatingLeaseAndFinanceLeaseLiabilityToBePaidAfterYearFive100.0

cabo:LesseeOperatingLeaseAndFinanceLeaseLiabilityToBePaidYearFive

cabo:LesseeOperatingLeaseAndFinanceLeaseLiabilityToBePaidYearFive


Lessee
Period End2020-12-31
Value1796000.0
Percentage of LesseeOperatingLeaseAndFinanceLeaseLiabilityToBePaidYearFive100.0

cabo:LesseeOperatingLeaseAndFinanceLeaseLiabilityToBePaidYearFour

cabo:LesseeOperatingLeaseAndFinanceLeaseLiabilityToBePaidYearFour


Lessee
Period End2020-12-31
Value2306000.0
Percentage of LesseeOperatingLeaseAndFinanceLeaseLiabilityToBePaidYearFour100.0

cabo:LesseeOperatingLeaseAndFinanceLeaseLiabilityToBePaidYearOne

cabo:LesseeOperatingLeaseAndFinanceLeaseLiabilityToBePaidYearOne


Lessee
Period End2020-12-31
Value5266000.0
Percentage of LesseeOperatingLeaseAndFinanceLeaseLiabilityToBePaidYearOne100.0

cabo:LesseeOperatingLeaseAndFinanceLeaseLiabilityToBePaidYearThree

cabo:LesseeOperatingLeaseAndFinanceLeaseLiabilityToBePaidYearThree


Lessee
Period End2020-12-31
Value3755000.0
Percentage of LesseeOperatingLeaseAndFinanceLeaseLiabilityToBePaidYearThree100.0

cabo:LesseeOperatingLeaseAndFinanceLeaseLiabilityToBePaidYearTwo

cabo:LesseeOperatingLeaseAndFinanceLeaseLiabilityToBePaidYearTwo


Lessee
Period End2020-12-31
Value4298000.0
Percentage of LesseeOperatingLeaseAndFinanceLeaseLiabilityToBePaidYearTwo100.0

cabo:LongTermDebtAmortizationRateFirstTwelveMonths us-gaap:CreditFacility, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType

cabo:LongTermDebtAmortizationRateFirstTwelveMonths

us-gaap:SecuredDebt, cabo:TermLoanA2, us-gaap:SubsequentEvent


Long
Period End2020-10-30
Value2.5
Percentage of LongTermDebtAmortizationRateFirstTwelveMonths100.0

cabo:LongTermDebtAmortizationRateYearFive us-gaap:CreditFacility, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType

cabo:LongTermDebtAmortizationRateYearFive

us-gaap:SecuredDebt, cabo:TermLoanA2, us-gaap:SubsequentEvent


Long
Period End2020-10-30
Value12.5
Percentage of LongTermDebtAmortizationRateYearFive100.0

cabo:LongTermDebtAmortizationRateYearFour us-gaap:CreditFacility, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType

cabo:LongTermDebtAmortizationRateYearFour

us-gaap:SecuredDebt, cabo:TermLoanA2, us-gaap:SubsequentEvent


Long
Period End2020-10-30
Value7.5
Percentage of LongTermDebtAmortizationRateYearFour100.0

cabo:LongTermDebtAmortizationRateYearThree us-gaap:CreditFacility, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType

cabo:LongTermDebtAmortizationRateYearThree

us-gaap:SecuredDebt, cabo:TermLoanA2, us-gaap:SubsequentEvent


Long
Period End2020-10-30
Value5.0
Percentage of LongTermDebtAmortizationRateYearThree100.0

cabo:LongTermDebtAmortizationRateYearTwo us-gaap:CreditFacility, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType

cabo:LongTermDebtAmortizationRateYearTwo

us-gaap:SecuredDebt, cabo:TermLoanA2, us-gaap:SubsequentEvent


Long
Period End2020-10-30
Value2.5
Percentage of LongTermDebtAmortizationRateYearTwo100.0

cabo:LongtermDebtMaturityAfterYearFour

cabo:LongtermDebtMaturityAfterYearFour


Longterm
Period End2021-06-302021-03-312020-12-312020-09-30
Value315523911471542
Percentage of LongtermDebtMaturityAfterYearFour100.0100.0100.0100.0

cabo:OperatingLossCarryforwardsAfterTaxEffects us-gaap:IncomeTaxAuthority

cabo:OperatingLossCarryforwardsAfterTaxEffects

us-gaap:DomesticCountry


Operating
Period End2020-12-31
Value0.5
Percentage of OperatingLossCarryforwardsAfterTaxEffects100.0

us-gaap:StateAndLocalJurisdiction


Operating
Period End2020-12-312019-12-312018-12-312017-12-31
Value2.43.60.20.3
Percentage of OperatingLossCarryforwardsAfterTaxEffects480.00.00.00.0

cabo:OptionalAdditionalAvailableCreditFacilities us-gaap:CreditFacility

cabo:OptionalAdditionalAvailableCreditFacilities

us-gaap:SecuredDebt


Optional
Period End2020-11-30
Value700
Percentage of OptionalAdditionalAvailableCreditFacilities100.0

cabo:PrepaidRepairsAndMaintenance

cabo:PrepaidRepairsAndMaintenance


Prepaid
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value7520000.09517000.01013000.03740000.05762000.07196000.0551000.0
Percentage of PrepaidRepairsAndMaintenance100.0100.0100.0100.0100.0100.0100.0

cabo:PrepaidSoftware

cabo:PrepaidSoftware


Prepaid
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value5398000.05921000.04544000.03874000.03428000.04621000.04672000.01106000.0
Percentage of PrepaidSoftware100.0100.0100.0100.0100.0100.0100.0100.0

cabo:PrepaidSoftwareImplementationCostsCurrent

cabo:PrepaidSoftwareImplementationCostsCurrent


Prepaid
Period End2021-06-302021-03-312020-12-31
Value1200000.01199000.01035000.0
Percentage of PrepaidSoftwareImplementationCostsCurrent100.0100.0100.0

cabo:ProgrammingCostsCurrent us-gaap:BalanceSheetLocation

cabo:ProgrammingCostsCurrent

us-gaap:AccountsPayableAndAccruedLiabilities


Programming
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value2521201920191917
Percentage of ProgrammingCostsCurrent100.0100.0100.0100.0100.0100.0100.0100.0

cabo:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueVestedAndExercisable us-gaap:AwardType

cabo:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueVestedAndExercisable

us-gaap:StockAppreciationRightsSARS


Share
Period End2021-06-302021-03-312020-12-312020-09-30
Value37373329
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueVestedAndExercisable100.0100.0100.0100.0

cabo:TransitionServicesLabilitiesCurrent

cabo:TransitionServicesLabilitiesCurrent


Transition
Period End2021-03-312020-12-31
Value3454000.06822000.0
Percentage of TransitionServicesLabilitiesCurrent100.0100.0

us-gaap:AccountsAndOtherReceivablesNetCurrent

us-gaap:AccountsAndOtherReceivablesNetCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value5530385041353830302829283425515445313734
Percentage of AccountsAndOtherReceivablesNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccruedInsuranceCurrent us-gaap:BalanceSheetLocation

us-gaap:AccruedInsuranceCurrent

us-gaap:AccountsPayableAndAccruedLiabilities


Accrued
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value7104000.07148000.07292000.07747000.07074000.06670000.06174000.03976000.0
Percentage of AccruedInsuranceCurrent100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AllowanceForDoubtfulAccountsReceivable

us-gaap:AllowanceForDoubtfulAccountsReceivable


Allowance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value2843000.01374000.01252000.03223000.09399000.02997000.01201000.01049000.01166000.0951000.02045000.01876000.01028000.0864000.0621000.01207000.0
Percentage of AllowanceForDoubtfulAccountsReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent


Allowance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-312015-12-312014-12-312013-12-312012-12-31
Value2843000.01374000.01252000.03223000.09399000.02997000.01201000.02045000.0864000.0621000.01207000.02070000.0
Percentage of AllowanceForDoubtfulAccountsReceivableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BankOverdrafts us-gaap:BalanceSheetLocation

us-gaap:BankOverdrafts

us-gaap:AccountsPayableAndAccruedLiabilities


Bank
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value6452000.06279000.08847000.03199000.03718000.04737000.05801000.04689000.0
Percentage of BankOverdrafts100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BusinessAcquisitionPercentageOfVotingInterestsAcquired us-gaap:BusinessAcquisition

us-gaap:BusinessAcquisitionPercentageOfVotingInterestsAcquired

cabo:Hargray


Business
Period End2021-05-03
Value85.0
Percentage of BusinessAcquisitionPercentageOfVotingInterestsAcquired100.0

us-gaap:BusinessAcquisitionPercentageOfVotingInterestsAcquired us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType

cabo:Hargray, us-gaap:SubsequentEvent


Business
Period End2021-05-03
Value85.0
Percentage of BusinessAcquisitionPercentageOfVotingInterestsAcquired100.0

us-gaap:BusinessAcquisitionPercentageOfVotingInterestsAcquired us-gaap:StatementScenario, us-gaap:BusinessAcquisition

srt:ScenarioForecast, cabo:Hargray


Business
Period End2021-06-30
Value85.0
Percentage of BusinessAcquisitionPercentageOfVotingInterestsAcquired0.0

us-gaap:BusinessAcquisitionPurchasePriceAllocationGoodwillExpectedTaxDeductibleAmount us-gaap:BusinessAcquisition

us-gaap:BusinessAcquisitionPurchasePriceAllocationGoodwillExpectedTaxDeductibleAmount

cabo:Fidelity


Business
Period End2020-12-31
Value71
Percentage of BusinessAcquisitionPurchasePriceAllocationGoodwillExpectedTaxDeductibleAmount100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets

cabo:Hargray


Business
Period End2021-05-03
Value2097
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents

cabo:Hargray


Business
Period End2021-05-03
Value17
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets

cabo:Hargray


Business
Period End2021-05-03
Value8006000.0
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables

cabo:Hargray


Business
Period End2021-05-03
Value17
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesDeferredRevenue us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesDeferredRevenue

cabo:Hargray


Business
Period End2021-05-03
Value8.462
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesDeferredRevenue100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesLongTermDebt us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesLongTermDebt

cabo:Hargray


Business
Period End2021-05-03
Value1375000.0
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesLongTermDebt100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilities us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilities

cabo:Hargray


Business
Period End2021-05-03
Value437
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilities100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIndefiniteLivedIntangibleAssets us-gaap:BusinessAcquisition, us-gaap:IndefiniteLivedIntangibleAssetsByMajorClass

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIndefiniteLivedIntangibleAssets

cabo:Fidelity, us-gaap:FranchiseRights


Business
Period End2020-07-01
Value166
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIndefiniteLivedIntangibleAssets100.0

cabo:Hargray, us-gaap:FranchiseRights


Business
Period End2021-05-03
Value1110
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIndefiniteLivedIntangibleAssets0.0

cabo:ValuNet, cabo:TrademarksAndTradeNames1


Business
Period End2020-07-01
Value0.8
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIndefiniteLivedIntangibleAssets0.5

cabo:ValuNet, us-gaap:FranchiseRights


Business
Period End2020-07-01
Value11
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIndefiniteLivedIntangibleAssets6.7

cabo:Valunet, us-gaap:FranchiseRights


Business
Period End2020-07-01
Value11
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIndefiniteLivedIntangibleAssets6.7

cabo:Valunet, us-gaap:TrademarksAndTradeNames


Business
Period End2020-07-01
Value0.8
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIndefiniteLivedIntangibleAssets0.5

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill

cabo:Hargray


Business
Period End2021-05-03
Value1592
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill100.0

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

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles

cabo:Hargray, us-gaap:CustomerRelationships


Business
Period End2021-05-03
Value472
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles100.0

cabo:Hargray, us-gaap:TrademarksAndTradeNames


Business
Period End2021-05-03
Value10.0
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles2.1

cabo:ValuNet, us-gaap:CustomerRelationships


Business
Period End2020-07-01
Value7.7
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles0.0

cabo:Valunet, us-gaap:CustomerRelationships


Business
Period End2020-07-01
Value7.7
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles0.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles us-gaap:BusinessAcquisition, us-gaap:IndefiniteLivedIntangibleAssetsByMajorClass

cabo:Fidelity, us-gaap:TrademarksAndTradeNames


Business
Period End2020-07-01
Value3.0
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles0.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities

cabo:Hargray


Business
Period End2021-05-03
Value493
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet

cabo:Hargray


Business
Period End2021-05-03
Value1603
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesLongTermDebt us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesLongTermDebt

cabo:Hargray


Business
Period End2021-05-03
Value2912000.0
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesLongTermDebt100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther

cabo:Hargray


Business
Period End2021-05-03
Value6974000.0
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets

cabo:Hargray


Business
Period End2021-05-03
Value4636000.0
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment

cabo:Hargray


Business
Period End2021-05-03
Value457
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet

cabo:Hargray


Business
Period End2021-05-03
Value2117
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet100.0

us-gaap:BusinessCombinationStepAcquisitionEquityInterestInAcquireePercentage us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationStepAcquisitionEquityInterestInAcquireePercentage

cabo:Hargray


Business
Period End2021-05-03
Value15.0
Percentage of BusinessCombinationStepAcquisitionEquityInterestInAcquireePercentage100.0

us-gaap:CashAndCashEquivalentsFairValueDisclosure us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis

us-gaap:CashAndCashEquivalentsFairValueDisclosure

us-gaap:CommercialPaper, us-gaap:FairValueInputsLevel2, us-gaap:CarryingReportedAmountFairValueDisclosure


Cash
Period End2020-09-302020-06-302020-03-312019-12-312019-06-302019-03-312018-09-302018-06-302018-03-31
Value20122105430119174179144
Percentage of CashAndCashEquivalentsFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CommercialPaper, us-gaap:FairValueInputsLevel2, us-gaap:EstimateOfFairValueFairValueDisclosure


Cash
Period End2020-09-302020-06-302020-03-312019-12-312019-06-302019-03-312018-09-302018-06-302018-03-31
Value191229.9625429119174179144
Percentage of CashAndCashEquivalentsFairValueDisclosure99.8100.099.299.899.499.9100.0100.099.9

us-gaap:MoneyMarketFunds, us-gaap:FairValueInputsLevel1, us-gaap:CarryingReportedAmountFairValueDisclosure


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value412148954458550121146485349238381621
Percentage of CashAndCashEquivalentsFairValueDisclosure0.00.00.02923.6409.82103.683.90.0178.541.40.022.19.214.9

us-gaap:MoneyMarketFunds, us-gaap:FairValueInputsLevel1, us-gaap:EstimateOfFairValueFairValueDisclosure


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value412148954458550121146485349238381621
Percentage of CashAndCashEquivalentsFairValueDisclosure0.00.00.02923.6409.82103.683.90.0178.541.40.022.19.214.9

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-312017-12-31
Value4481537574625642241125145102264161
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerAssetNet

us-gaap:ContractWithCustomerAssetNet


Contract
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value313836313230292729
Percentage of ContractWithCustomerAssetNet100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerLiabilityNoncurrent us-gaap:BalanceSheetLocation

us-gaap:ContractWithCustomerLiabilityNoncurrent

us-gaap:OtherNoncurrentLiabilities


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value6665000.04654000.04981000.05109000.05287000.06100000.05500000.05800000.04800000.05100000.02800000.02700000.02500000.02200000.03100000.0
Percentage of ContractWithCustomerLiabilityNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractualObligation

us-gaap:ContractualObligation


Contractual
Period End2020-12-31
Value2513
Percentage of ContractualObligation100.0

us-gaap:ContractualObligationDueAfterFifthYear

us-gaap:ContractualObligationDueAfterFifthYear


Contractual
Period End2020-12-31
Value1488
Percentage of ContractualObligationDueAfterFifthYear100.0

us-gaap:ContractualObligationDueInFifthYear

us-gaap:ContractualObligationDueInFifthYear


Contractual
Period End2020-12-31
Value555
Percentage of ContractualObligationDueInFifthYear100.0

us-gaap:ContractualObligationDueInFourthYear

us-gaap:ContractualObligationDueInFourthYear


Contractual
Period End2020-12-31
Value87
Percentage of ContractualObligationDueInFourthYear100.0

us-gaap:ContractualObligationDueInNextTwelveMonths

us-gaap:ContractualObligationDueInNextTwelveMonths


Contractual
Period End2020-12-31
Value192
Percentage of ContractualObligationDueInNextTwelveMonths100.0

us-gaap:ContractualObligationDueInSecondYear

us-gaap:ContractualObligationDueInSecondYear


Contractual
Period End2020-12-31
Value99
Percentage of ContractualObligationDueInSecondYear100.0

us-gaap:ContractualObligationDueInThirdYear

us-gaap:ContractualObligationDueInThirdYear


Contractual
Period End2020-12-31
Value91
Percentage of ContractualObligationDueInThirdYear100.0

us-gaap:DebtInstrumentCarryingAmount us-gaap:CreditFacility

us-gaap:DebtInstrumentCarryingAmount

us-gaap:SecuredDebt


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value2328153515411731173817451753
Percentage of DebtInstrumentCarryingAmount100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtInstrumentCarryingAmount us-gaap:CreditFacility, us-gaap:LongtermDebtType

us-gaap:LetterOfCredit, cabo:TermLoanBorrowings


Debt
Period End2021-06-30
Value2300
Percentage of DebtInstrumentCarryingAmount98.8

us-gaap:SecuredDebt, cabo:TermB1Loan


Debt
Period End2020-09-302020-06-302020-03-312019-12-31
Value483485486487
Percentage of DebtInstrumentCarryingAmount27.927.927.827.8

us-gaap:SecuredDebt, cabo:TermB2Loan


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value244245245246246247248248249250
Percentage of DebtInstrumentCarryingAmount10.516.015.914.214.214.214.20.00.00.0

us-gaap:SecuredDebt, cabo:TermB3Loan


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value616617619320321322323324325
Percentage of DebtInstrumentCarryingAmount26.540.240.218.518.518.518.40.00.0

us-gaap:SecuredDebt, cabo:TermLoanA2


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value668672676680685689694
Percentage of DebtInstrumentCarryingAmount28.743.843.939.339.439.539.6

us-gaap:SecuredDebt, cabo:TermLoanB4


Debt
Period End2021-06-30
Value800
Percentage of DebtInstrumentCarryingAmount34.4

us-gaap:SecuredDebt, cabo:TermLoanBorrowings


Debt
Period End2021-03-312020-12-312020-03-312019-12-31
Value15001.518001800
Percentage of DebtInstrumentCarryingAmount97.70.1103.1102.7

us-gaap:DebtInstrumentCarryingAmount us-gaap:DebtInstrument, us-gaap:LongtermDebtType

cabo:SeniorCreditFacilitiesDue2020, cabo:TermLoan


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value23281535154117311738184517531310131497573073473874174474775095
Percentage of DebtInstrumentCarryingAmount100.0100.0100.0100.0100.0105.7100.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:DebtInstrumentFaceAmount us-gaap:CreditFacility

us-gaap:DebtInstrumentFaceAmount

us-gaap:SecuredDebt


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-312017-05-012017-02-13
Value2375157515751775177517751775750750650
Percentage of DebtInstrumentFaceAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtInstrumentFaceAmount us-gaap:CreditFacility, us-gaap:LineOfCreditFacility, us-gaap:LongtermDebtType

us-gaap:SecuredDebt, cabo:CoBankACB, cabo:TermB3Loan


Debt
Period End2020-10-302020-09-302020-06-302020-03-312019-04-12
Value300325325325325
Percentage of DebtInstrumentFaceAmount0.018.318.318.30.0

us-gaap:DebtInstrumentFaceAmount us-gaap:CreditFacility, us-gaap:LineOfCreditFacility, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType

us-gaap:SecuredDebt, cabo:CoBankACB, cabo:TermB3Loan, us-gaap:SubsequentEvent


Debt
Period End2020-10-30
Value300
Percentage of DebtInstrumentFaceAmount0.0

us-gaap:DebtInstrumentFaceAmount us-gaap:CreditFacility, us-gaap:LongtermDebtType

us-gaap:SecuredDebt, cabo:TermB3Loan


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value625625625325325325325
Percentage of DebtInstrumentFaceAmount26.339.739.718.318.318.318.3

us-gaap:DebtInstrumentFaceAmount us-gaap:CreditFacility, us-gaap:LongtermDebtType, us-gaap:SubsequentEventType

us-gaap:SecuredDebt, cabo:TermLoanB4, us-gaap:SubsequentEvent


Debt
Period End2021-05-03
Value800
Percentage of DebtInstrumentFaceAmount0.0

us-gaap:DebtInstrumentFaceAmount us-gaap:DebtInstrument

cabo:SeniorUnsecuredNotesDue2030


Debt
Period End2020-11-09
Value650
Percentage of DebtInstrumentFaceAmount0.0

cabo:The2026Notes


Debt
Period End2021-03-05
Value575
Percentage of DebtInstrumentFaceAmount0.0

cabo:The2028Notes


Debt
Period End2021-03-05
Value345
Percentage of DebtInstrumentFaceAmount0.0

us-gaap:DebtInstrumentFaceAmount us-gaap:DebtInstrument, us-gaap:SubsequentEventType

cabo:SeniorUnsecuredNotesDue2030, us-gaap:SubsequentEvent


Debt
Period End2020-10-26
Value650
Percentage of DebtInstrumentFaceAmount0.0

us-gaap:DebtInstrumentInterestRateEffectivePercentage us-gaap:CreditFacility, us-gaap:LongtermDebtType

us-gaap:DebtInstrumentInterestRateEffectivePercentage

us-gaap:SecuredDebt, cabo:TermB1Loan


Debt
Period End2020-09-302020-06-302020-03-312019-12-31
Value1.90.01930.02740.0355
Percentage of DebtInstrumentInterestRateEffectivePercentage100.0100.0100.0100.0

us-gaap:SecuredDebt, cabo:TermB2Loan


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-03-31
Value2.12.112.152.150.02180.02990.0380.0449
Percentage of DebtInstrumentInterestRateEffectivePercentage0.00.00.0113.2113.0109.1107.00.0

us-gaap:SecuredDebt, cabo:TermB3Loan


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value2.12.112.152.150.02180.02990.038
Percentage of DebtInstrumentInterestRateEffectivePercentage0.00.00.0113.2113.0109.1107.0

us-gaap:SecuredDebt, cabo:TermLoanA2


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value1.851.611.651.650.01680.02490.033
Percentage of DebtInstrumentInterestRateEffectivePercentage0.00.00.086.887.090.993.0

us-gaap:SecuredDebt, cabo:TermLoanB4


Debt
Period End2021-06-30
Value2.1
Percentage of DebtInstrumentInterestRateEffectivePercentage0.0

us-gaap:DebtInstrumentUnamortizedDiscount

us-gaap:DebtInstrumentUnamortizedDiscount


Debt
Period End2021-06-302021-03-31
Value2223
Percentage of DebtInstrumentUnamortizedDiscount100.0100.0

us-gaap:DebtInstrumentUnamortizedDiscount us-gaap:DebtInstrument

cabo:The2026Notes


Debt
Period End2021-06-302021-03-31
Value1414
Percentage of DebtInstrumentUnamortizedDiscount62.062.4

cabo:The2026NotesAndThe2028Notes


Debt
Period End2021-06-302021-03-31
Value2223
Percentage of DebtInstrumentUnamortizedDiscount100.0100.0

cabo:The2028Notes


Debt
Period End2021-06-302021-03-31
Value8.648.961
Percentage of DebtInstrumentUnamortizedDiscount38.037.6

us-gaap:DeferredCompensationLiabilityClassifiedNoncurrent us-gaap:BalanceSheetLocation

us-gaap:DeferredCompensationLiabilityClassifiedNoncurrent

us-gaap:OtherNoncurrentLiabilities


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value148.715106.5786.5686.397.1546.683
Percentage of DeferredCompensationLiabilityClassifiedNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredFinanceCostsNet

us-gaap:DeferredFinanceCostsNet


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-31
Value33242517181718191918171819181920217.7488.1488.5578.989.3859.79
Percentage of DeferredFinanceCostsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredFinanceCostsNet us-gaap:BalanceSheetLocation, us-gaap:CreditFacility

us-gaap:OtherNoncurrentAssets, us-gaap:RevolvingCreditFacility


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-31
Value2.9153.0833.2492.0082.1492.427
Percentage of DeferredFinanceCostsNet8.612.412.911.611.713.4

us-gaap:DeferredFinanceCostsNet us-gaap:BalanceSheetLocation, us-gaap:DebtInstrument

us-gaap:LongTermDebt, cabo:TermLoan


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-31
Value302121151618
Percentage of DeferredFinanceCostsNet91.487.687.188.488.3100.0

us-gaap:DeferredFinanceCostsNet us-gaap:DebtInstrument

cabo:TermLoan


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-31
Value302121151618
Percentage of DeferredFinanceCostsNet91.487.687.188.488.3100.0

cabo:The2026Notes


Deferred
Period End2021-06-302021-03-31
Value0.3860.385
Percentage of DeferredFinanceCostsNet1.11.6

cabo:The2026NotesAndThe2028Notes


Deferred
Period End2021-06-302021-03-31
Value0.630.617
Percentage of DeferredFinanceCostsNet1.92.5

cabo:The2028Notes


Deferred
Period End2021-06-302021-03-31
Value0.2440.232
Percentage of DeferredFinanceCostsNet0.70.9

us-gaap:DeferredIncomeTaxLiabilities

us-gaap:DeferredIncomeTaxLiabilities


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value433362253220291289299
Percentage of DeferredIncomeTaxLiabilities100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsCapitalLossCarryforwards

us-gaap:DeferredTaxAssetsCapitalLossCarryforwards


Deferred
Period End2020-12-31
Value4322000.0
Percentage of DeferredTaxAssetsCapitalLossCarryforwards100.0

us-gaap:DeferredTaxAssetsDerivativeInstruments

us-gaap:DeferredTaxAssetsDerivativeInstruments


Deferred
Period End2020-12-312019-12-312018-12-31
Value45220.0
Percentage of DeferredTaxAssetsDerivativeInstruments100.0100.00.0

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsGross


Deferred
Period End2020-12-312019-12-31
Value7164
Percentage of DeferredTaxAssetsGross100.0100.0

us-gaap:DeferredTaxAssetsOperatingLossCarryforwards

us-gaap:DeferredTaxAssetsOperatingLossCarryforwards


Deferred
Period End2020-12-312019-12-312018-12-312017-12-31
Value2.951251.9832.992
Percentage of DeferredTaxAssetsOperatingLossCarryforwards100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsOther

us-gaap:DeferredTaxAssetsOther


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value3856000.02104000.01204000.0765000.0555000.0839000.0688000.0
Percentage of DeferredTaxAssetsOther100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBonuses

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBonuses


Deferred
Period End2020-12-312019-12-312018-12-31
Value3947000.02313000.01826000.0
Percentage of DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBonuses100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsOther

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsOther


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value1789000.01890000.01940000.05779000.09118000.09396000.08305000.0
Percentage of DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsOther100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302019-12-312018-12-312017-12-312016-12-312015-12-31
Value3700000.03200000.04324000.04000000.04563000.04080000.04711000.05041000.01868000.0
Percentage of DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsReserves

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsReserves


Deferred
Period End2020-12-312019-12-312018-12-312017-12-31
Value1194000.01134000.0365000.0760000.0
Percentage of DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsReserves100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesGoodwillAndIntangibleAssets

us-gaap:DeferredTaxLiabilitiesGoodwillAndIntangibleAssets


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value160159131123166166164
Percentage of DeferredTaxLiabilitiesGoodwillAndIntangibleAssets100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesInvestments

us-gaap:DeferredTaxLiabilitiesInvestments


Deferred
Period End2020-12-31
Value29
Percentage of DeferredTaxLiabilitiesInvestments100.0

us-gaap:DeferredTaxLiabilitiesLeasingArrangements

us-gaap:DeferredTaxLiabilitiesLeasingArrangements


Deferred
Period End2020-12-312019-12-31
Value5121000.05201000.0
Percentage of DeferredTaxLiabilitiesLeasingArrangements100.0100.0

us-gaap:DeferredTaxLiabilitiesOther

us-gaap:DeferredTaxLiabilitiesOther


Deferred
Period End2020-12-312019-12-312018-12-31
Value2195000.0542000.00
Percentage of DeferredTaxLiabilitiesOther100.0100.00.0

us-gaap:DeferredTaxLiabilitiesPrepaidExpenses

us-gaap:DeferredTaxLiabilitiesPrepaidExpenses


Deferred
Period End2020-12-312019-12-312018-12-312017-12-31
Value3500000.02127000.01909000.01793000.0
Percentage of DeferredTaxLiabilitiesPrepaidExpenses100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value23320111995125122134
Percentage of DeferredTaxLiabilitiesPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0

us-gaap:Deposits us-gaap:BalanceSheetLocation

us-gaap:Deposits

us-gaap:AccountsPayableAndAccruedLiabilities


Depositsus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302019-12-31
Value126.4416.36.9876.55
Percentage of Deposits100.0100.0100.0100.0100.0

us-gaap:DerivativeAssetFairValueGrossLiability us-gaap:DerivativeInstrumentRisk, us-gaap:OptionIndexedToIssuersEquityType

us-gaap:DerivativeAssetFairValueGrossLiability

cabo:MBINetOption, us-gaap:PutOption


Derivative
Period End2021-06-302021-03-312020-12-31
Value897574
Percentage of DerivativeAssetFairValueGrossLiability100.0100.0100.0

us-gaap:DerivativeFairValueOfDerivativeAsset us-gaap:DerivativeInstrumentRisk, us-gaap:OptionIndexedToIssuersEquityType

us-gaap:DerivativeFairValueOfDerivativeAsset

cabo:MBINetOption, us-gaap:CallOption


Derivative
Period End2021-06-302021-03-312020-12-31
Value07400000.0700000.0
Percentage of DerivativeFairValueOfDerivativeAsset0.0100.0100.0

us-gaap:DerivativeFixedInterestRate us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship

us-gaap:DerivativeFixedInterestRate

cabo:FirstInterestRateSwapAgreement, us-gaap:CashFlowHedging


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value2.6532.6532.6532.6530.026530.026530.026530.026530.026530.02653
Percentage of DerivativeFixedInterestRate100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

cabo:SecondInterestRateSwapAgreement, us-gaap:CashFlowHedging


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value2.7392.7392.7392.7390.027390.027390.027390.027390.027390.02739
Percentage of DerivativeFixedInterestRate103.2103.2103.2103.2103.2103.2103.2103.2103.2103.2

us-gaap:DerivativeLiabilities us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship

us-gaap:DerivativeLiabilities

us-gaap:InterestRateSwap, us-gaap:CashFlowHedging


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value13311218620621420189
Percentage of DerivativeLiabilities100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeLiabilities us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis

cabo:MBINetOption, us-gaap:FairValueInputsLevel3, us-gaap:CarryingReportedAmountFairValueDisclosure


Derivative
Period End2021-06-302021-03-312020-12-31
Value896773
Percentage of DerivativeLiabilities66.860.339.4

cabo:MBINetOption, us-gaap:FairValueInputsLevel3, us-gaap:EstimateOfFairValueFairValueDisclosure


Derivative
Period End2021-06-302021-03-312020-12-31
Value896773
Percentage of DerivativeLiabilities66.860.339.4

us-gaap:InterestRateSwap, us-gaap:FairValueInputsLevel2, us-gaap:CarryingReportedAmountFairValueDisclosure


Derivative
Period End2021-06-302021-03-312020-12-31
Value133112186
Percentage of DerivativeLiabilities100.0100.0100.0

us-gaap:InterestRateSwap, us-gaap:FairValueInputsLevel2, us-gaap:EstimateOfFairValueFairValueDisclosure


Derivative
Period End2021-06-302021-03-312020-12-31
Value133112186
Percentage of DerivativeLiabilities100.0100.0100.0

us-gaap:DerivativeLiabilities us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis

us-gaap:FairValueInputsLevel2, us-gaap:CarryingReportedAmountFairValueDisclosure


Derivative
Period End2020-09-302020-06-302020-03-312019-12-31
Value20621420189
Percentage of DerivativeLiabilities100.0100.0100.0100.0

us-gaap:FairValueInputsLevel2, us-gaap:EstimateOfFairValueFairValueDisclosure


Derivative
Period End2020-09-302020-06-302020-03-312019-12-31
Value20621420189
Percentage of DerivativeLiabilities100.0100.0100.0100.0

us-gaap:DerivativeLiabilitiesCurrent us-gaap:BalanceSheetLocation

us-gaap:DerivativeLiabilitiesCurrent

us-gaap:AccountsPayableAndAccruedLiabilities


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value303030303026110.0
Percentage of DerivativeLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:DerivativeLiabilitiesCurrent us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship

us-gaap:AccountsPayableAndAccruedLiabilities, us-gaap:InterestRateSwap, us-gaap:CashFlowHedging


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value30303030302611
Percentage of DerivativeLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeLiabilitiesNoncurrent

us-gaap:DerivativeLiabilitiesNoncurrent


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value1028115517618417578
Percentage of DerivativeLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeLiabilitiesNoncurrent us-gaap:BalanceSheetLocation

us-gaap:OtherNoncurrentLiabilities


Derivative
Period End2020-12-312019-12-312018-12-31
Value73780.0
Percentage of DerivativeLiabilitiesNoncurrent47.2100.00.0

us-gaap:DerivativeLiabilitiesNoncurrent us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk

us-gaap:OtherNoncurrentLiabilities, cabo:MBINetOption


Derivative
Period End2021-06-302021-03-312020-12-31
Value896773
Percentage of DerivativeLiabilitiesNoncurrent86.682.747.2

us-gaap:DerivativeLiabilitiesNoncurrent us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship

us-gaap:InterestRateSwap, us-gaap:CashFlowHedging


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value1028115517618417578
Percentage of DerivativeLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeLiabilityMeasurementInput us-gaap:DerivativeInstrumentRisk, us-gaap:MeasurementInputType

us-gaap:DerivativeLiabilityMeasurementInput

cabo:CableOneOption, us-gaap:MeasurementInputOptionVolatility


Derivative
Period End2021-06-302021-03-312020-12-31
Value30.029.028.0
Percentage of DerivativeLiabilityMeasurementInput100.0100.0100.0

cabo:CableOneOption, us-gaap:MeasurementInputRiskFreeInterestRate


Derivative
Period End2021-06-302021-03-312020-12-31
Value5.05.55.0
Percentage of DerivativeLiabilityMeasurementInput16.719.017.9

cabo:MBINetOption, us-gaap:MeasurementInputRiskFreeInterestRate


Derivative
Period End2021-06-302021-03-312020-12-31
Value6.57.06.5
Percentage of DerivativeLiabilityMeasurementInput21.724.123.2

us-gaap:DueFromRelatedPartiesCurrent

us-gaap:DueFromRelatedPartiesCurrent


Due
Period End2020-09-30
Value6796000.0
Percentage of DueFromRelatedPartiesCurrent100.0

us-gaap:EmployeeRelatedLiabilitiesCurrent us-gaap:BalanceSheetLocation

us-gaap:EmployeeRelatedLiabilitiesCurrent

us-gaap:AccountsPayableAndAccruedLiabilities


Employee
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value4218262421132321
Percentage of EmployeeRelatedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions us-gaap:AwardType

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions

us-gaap:RestrictedStock


Employee
Period End2020-12-31
Value17
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions100.0

us-gaap:RestrictedStockUnitsRSU


Employee
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value312819181810139.79.010106.68.89.811
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:StockAppreciationRightsSARS


Employee
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value5.66.36.55.96.15.77.67.28.69.36.36.47.17.96.98.28.99.78.18.89.6101011
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions0.00.037.40.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:EquityMethodInvestmentAggregateCost us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

us-gaap:EquityMethodInvestmentAggregateCost

cabo:WisperIsp


Equity
Period End2020-07-10
Value25
Percentage of EquityMethodInvestmentAggregateCost100.0

cabo:WisperIspLlc


Equity
Period End2020-07-10
Value25
Percentage of EquityMethodInvestmentAggregateCost100.0

us-gaap:EquityMethodInvestmentAggregateCost us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:StatementScenario

cabo:MegaBroadbandInvestmentsHoldings, srt:ScenarioForecast


Equity
Period End2020-12-31
Value574
Percentage of EquityMethodInvestmentAggregateCost0.0

us-gaap:EquityMethodInvestmentDifferenceBetweenCarryingAmountAndUnderlyingEquity us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:EquityMethodInvestmentDifferenceBetweenCarryingAmountAndUnderlyingEquity

cabo:MBI


Equity
Period End2021-06-302021-03-312020-12-31
Value520526529
Percentage of EquityMethodInvestmentDifferenceBetweenCarryingAmountAndUnderlyingEquity100.0100.0100.0

us-gaap:EquityMethodInvestmentOwnershipPercentage us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

us-gaap:EquityMethodInvestmentOwnershipPercentage

cabo:MegaBroadbandInvestmentsHoldings


Equity
Period End2020-11-12
Value45.0
Percentage of EquityMethodInvestmentOwnershipPercentage100.0

cabo:WisperIsp


Equity
Period End2020-07-10
Value40.0
Percentage of EquityMethodInvestmentOwnershipPercentage0.0

cabo:WisperIspLlc


Equity
Period End2020-07-10
Value40.4
Percentage of EquityMethodInvestmentOwnershipPercentage0.0

us-gaap:EquityMethodInvestmentOwnershipPercentage us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:StatementScenario

cabo:MegaBroadbandInvestmentsHoldings, srt:ScenarioForecast


Equity
Period End2020-12-31
Value45.0
Percentage of EquityMethodInvestmentOwnershipPercentage0.0

us-gaap:EquityMethodInvestments

us-gaap:EquityMethodInvestments


Equity
Period End2021-06-302021-03-312020-12-312020-09-30
Value65565665725
Percentage of EquityMethodInvestments100.0100.0100.0100.0

us-gaap:EquityMethodInvestments us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

cabo:MBI


Equity
Period End2021-06-302021-03-312020-12-312020-11-12
Value627629630630
Percentage of EquityMethodInvestments95.695.895.90.0

cabo:Wisper


Equity
Period End2021-06-302021-03-312020-12-31
Value282726
Percentage of EquityMethodInvestments4.44.24.1

us-gaap:EquitySecuritiesWithoutReadilyDeterminableFairValueAmount

us-gaap:EquitySecuritiesWithoutReadilyDeterminableFairValueAmount


Equity
Period End2021-06-302021-03-312020-12-312019-12-31
Value6978078070.206
Percentage of EquitySecuritiesWithoutReadilyDeterminableFairValueAmount100.0100.0100.0100.0

us-gaap:FinanceLeaseLiability

us-gaap:FinanceLeaseLiability


Finance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value5603000.05651000.05466000.05749000.05794000.05844000.05943000.04232000.03340000.03603000.0251000.0
Percentage of FinanceLeaseLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeaseLiabilityCurrent us-gaap:BalanceSheetLocation

us-gaap:FinanceLeaseLiabilityCurrent

cabo:LongTermDebtCurrent


Finance
Period End2020-12-312019-12-31
Value661000.0589000.0
Percentage of FinanceLeaseLiabilityCurrent100.0100.0

us-gaap:FinanceLeaseLiabilityNoncurrent us-gaap:BalanceSheetLocation

us-gaap:FinanceLeaseLiabilityNoncurrent

us-gaap:LongTermDebt


Finance
Period End2020-12-312019-12-31
Value4805000.05354000.0
Percentage of FinanceLeaseLiabilityNoncurrent100.0100.0

us-gaap:FinanceLeaseLiabilityPaymentsDue

us-gaap:FinanceLeaseLiabilityPaymentsDue


Finance
Period End2020-12-31
Value13
Percentage of FinanceLeaseLiabilityPaymentsDue100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:FinanceLeaseLiabilityPaymentsDueAfterYearFive


Finance
Period End2020-12-31
Value8498000.0
Percentage of FinanceLeaseLiabilityPaymentsDueAfterYearFive100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:FinanceLeaseLiabilityPaymentsDueNextTwelveMonths


Finance
Period End2020-12-31
Value1008000.0
Percentage of FinanceLeaseLiabilityPaymentsDueNextTwelveMonths100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFive

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFive


Finance
Period End2020-12-31
Value985000.0
Percentage of FinanceLeaseLiabilityPaymentsDueYearFive100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFour

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFour


Finance
Period End2020-12-31
Value1008000.0
Percentage of FinanceLeaseLiabilityPaymentsDueYearFour100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueYearThree

us-gaap:FinanceLeaseLiabilityPaymentsDueYearThree


Finance
Period End2020-12-31
Value1026000.0
Percentage of FinanceLeaseLiabilityPaymentsDueYearThree100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueYearTwo

us-gaap:FinanceLeaseLiabilityPaymentsDueYearTwo


Finance
Period End2020-12-31
Value1019000.0
Percentage of FinanceLeaseLiabilityPaymentsDueYearTwo100.0

us-gaap:FinanceLeaseLiabilityUndiscountedExcessAmount

us-gaap:FinanceLeaseLiabilityUndiscountedExcessAmount


Finance
Period End2020-12-31
Value8078000.0
Percentage of FinanceLeaseLiabilityUndiscountedExcessAmount100.0

us-gaap:FinanceLeaseRightOfUseAsset us-gaap:BalanceSheetLocation

us-gaap:FinanceLeaseRightOfUseAsset

cabo:PropertyPlantAndEquipmentNet


Finance
Period End2020-12-312019-12-31
Value8979000.09665000.0
Percentage of FinanceLeaseRightOfUseAsset100.0100.0

us-gaap:FinanceLeaseRightOfUseAssetBeforeAccumulatedAmortization

us-gaap:FinanceLeaseRightOfUseAssetBeforeAccumulatedAmortization


Finance
Period End2021-06-302021-03-312020-12-31
Value101010
Percentage of FinanceLeaseRightOfUseAssetBeforeAccumulatedAmortization100.0100.0100.0

us-gaap:FinanceLeaseWeightedAverageDiscountRatePercent

us-gaap:FinanceLeaseWeightedAverageDiscountRatePercent


Finance
Period End2020-12-312019-12-31
Value6.226.26
Percentage of FinanceLeaseWeightedAverageDiscountRatePercent100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312015-09-302015-06-302014-12-31
Value113948775645341353126221716113.6281010
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization us-gaap:FiniteLivedIntangibleAssetsByMajorClass

cabo:WirelessSpectrumLicenses


Finite
Period End2021-06-302021-03-312020-12-31
Value0.0480.030.015
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization0.00.00.0

us-gaap:CustomerRelationships


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302015-06-302014-12-31
Value110928170594837312723191413107.6194.6131.8456.5266.526
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization96.997.093.793.192.291.189.488.587.385.883.780.379.40.064.40.00.064.564.9

us-gaap:TrademarksAndTradeNames


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value3.4522.8022.5522.3022.0521.8021.5521.1781.0560.9340.8130.6090.5690.4470.3250.5420.217
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization3.03.02.93.03.23.43.73.33.43.53.63.43.40.02.70.00.0

us-gaap:UseRights


Finite
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value2.9272.9272.9272.9272.8952.8932.8912.8892.8872.8892.8833.6433.8863.8633.843.8173.7943.7583.7343.7093.6783.6283.5973.536
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization3.43.94.65.56.98.29.310.812.716.217.20.032.80.00.00.00.00.00.00.00.0100.035.535.1

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive


Finite
Period End2020-12-31
Value140
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths


Finite
Period End2021-06-302021-03-312020-12-312020-09-30
Value87354040
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear


Finite
Period End2021-06-302021-03-312020-09-30
Value452911
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive


Finite
Period End2020-12-31
Value21
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearFive100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour


Finite
Period End2021-06-302021-03-312020-12-312020-09-30
Value64212323
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearFour100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree


Finite
Period End2021-06-302021-03-312020-12-312020-09-30
Value69232828
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearThree100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo


Finite
Period End2021-06-302021-03-312020-12-312020-09-30
Value76283535
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsGross

us-gaap:FiniteLivedIntangibleAssetsGross


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312015-09-302015-06-302014-12-31
Value8573753783763693693692472472471641621641654.1221010
Percentage of FiniteLivedIntangibleAssetsGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsGross us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:CustomerRelationships


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302015-06-302014-12-31
Value8413693693693623622432432431601581601601601551556.5266.526
Percentage of FiniteLivedIntangibleAssetsGross98.298.597.798.198.098.098.398.398.397.497.497.40.096.70.00.061.461.4

us-gaap:TrademarksAndTradeNames


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value144.34.34.34.34.31.31.31.31.31.2191.31.31.31.31.3
Percentage of FiniteLivedIntangibleAssetsGross1.71.11.11.11.21.20.50.50.50.80.80.80.00.80.00.0

us-gaap:UseRights


Finite
Period End2020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value2.9272.9272.9272.9272.9272.9272.9272.9272.9312.9313.8284.1384.1384.1384.1414.1384.1324.1324.1324.1274.1224.1074.107
Percentage of FiniteLivedIntangibleAssetsGross0.80.80.80.81.21.21.21.81.81.80.02.50.00.00.00.00.00.00.00.0100.038.638.6

us-gaap:GuaranteeObligationsMaximumExposure us-gaap:GuaranteeObligationsByNature

us-gaap:GuaranteeObligationsMaximumExposure

us-gaap:FinancialStandbyLetterOfCredit


Guarantee
Period End2021-06-302021-03-312020-10-302020-01-31
Value33333322
Percentage of GuaranteeObligationsMaximumExposure100.0100.0100.0100.0

us-gaap:HostingArrangementServiceContractImplementationCostCapitalizedAfterAccumulatedAmortization

us-gaap:HostingArrangementServiceContractImplementationCostCapitalizedAfterAccumulatedAmortization


Hosting
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-31
Value7485000.07785000.06879000.05237000.04569000.00
Percentage of HostingArrangementServiceContractImplementationCostCapitalizedAfterAccumulatedAmortization100.0100.0100.0100.0100.00.0

us-gaap:HostingArrangementServiceContractImplementationCostCapitalizedBeforeAccumulatedAmortization

us-gaap:HostingArrangementServiceContractImplementationCostCapitalizedBeforeAccumulatedAmortization


Hosting
Period End2020-12-312019-12-312018-12-31
Value3900000.09600000.01800000.0
Percentage of HostingArrangementServiceContractImplementationCostCapitalizedBeforeAccumulatedAmortization100.0100.0100.0

us-gaap:IncomeTaxesReceivable

us-gaap:IncomeTaxesReceivable


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value1715414314162.1461.7612.6934.658108.5669.013162118164.547
Percentage of IncomeTaxesReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestPayableCurrent

us-gaap:InterestPayableCurrent


Interest
Period End2021-06-302021-03-312020-12-312019-12-31
Value5.233114.1280.175
Percentage of InterestPayableCurrent100.0100.0100.0100.0

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths


Lessee
Period End2020-12-31
Value4258000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths100.0

us-gaap:LettersOfCreditOutstandingAmount us-gaap:CreditFacility, us-gaap:DebtInstrument, us-gaap:LineOfCreditFacility

us-gaap:LettersOfCreditOutstandingAmount

us-gaap:LetterOfCredit, cabo:LetterOfCreditIssuedToThirdPartyForFccPerformanceObligationsWithOffsetingCollateral, cabo:JPMorganChaseBank


Letters
Period End2021-06-30
Value0.0
Percentage of LettersOfCreditOutstandingAmount0.0

us-gaap:LineOfCredit us-gaap:CreditFacility, us-gaap:LineOfCreditFacility

us-gaap:LineOfCredit

us-gaap:LetterOfCredit, cabo:JPMorganChaseBank


Line
Period End2020-12-31
Value29
Percentage of LineOfCredit100.0

us-gaap:LineOfCredit us-gaap:CreditFacility, us-gaap:LineOfCreditFacility, us-gaap:ShortTermDebtType

us-gaap:RevolvingCreditFacility, cabo:JPMorganChaseBank, us-gaap:LetterOfCredit


Line
Period End2020-09-30
Value29
Percentage of LineOfCredit0.0

us-gaap:LineOfCreditFacilityInterestRateAtPeriodEnd us-gaap:CreditFacility, us-gaap:LineOfCreditFacility

us-gaap:LineOfCreditFacilityInterestRateAtPeriodEnd

us-gaap:LetterOfCredit, cabo:JPMorganChaseBank


Line
Period End2021-06-302021-03-312020-12-31
Value1.881.631.63
Percentage of LineOfCreditFacilityInterestRateAtPeriodEnd100.0100.0100.0

us-gaap:LineOfCreditFacilityInterestRateAtPeriodEnd us-gaap:CreditFacility, us-gaap:LineOfCreditFacility, us-gaap:ShortTermDebtType

us-gaap:RevolvingCreditFacility, cabo:JPMorganChaseBank, us-gaap:LetterOfCredit


Line
Period End2020-09-302020-03-31
Value1.630.0163
Percentage of LineOfCreditFacilityInterestRateAtPeriodEnd0.00.0

us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity us-gaap:CreditFacility, us-gaap:LineOfCreditFacility

us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity

us-gaap:RevolvingCreditFacility, cabo:JPMorganChaseBank


Line
Period End2020-10-302020-09-30
Value500350
Percentage of LineOfCreditFacilityMaximumBorrowingCapacity100.0100.0

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

us-gaap:RevolvingCreditFacility, cabo:JPMorganChaseBank, us-gaap:SubsequentEvent


Line
Period End2020-10-30
Value500
Percentage of LineOfCreditFacilityMaximumBorrowingCapacity100.0

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

us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity

us-gaap:RevolvingCreditFacility, cabo:SeniorCreditFacilitiesDue2020, cabo:JPMorganChaseBank


Line
Period End2020-09-30
Value320
Percentage of LineOfCreditFacilityRemainingBorrowingCapacity100.0

us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity us-gaap:CreditFacility, us-gaap:LineOfCreditFacility

us-gaap:RevolvingCreditFacility, cabo:JPMorganChaseBank


Line
Period End2021-06-302021-03-312020-12-31
Value459459470
Percentage of LineOfCreditFacilityRemainingBorrowingCapacity0.00.00.0

us-gaap:LongTermDebtAndCapitalLeaseObligationsCurrent

us-gaap:LongTermDebtAndCapitalLeaseObligationsCurrent


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value34262633282828171720
Percentage of LongTermDebtAndCapitalLeaseObligationsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities

us-gaap:LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value39043110219717371744185117581314131714291180118411891191119411971200544545549
Percentage of LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LongTermDebtFairValue us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByLiabilityClass, us-gaap:FairValueByMeasurementBasis

us-gaap:LongTermDebtFairValue

us-gaap:FairValueInputsLevel2, cabo:NewNotes, us-gaap:EstimateOfFairValueFairValueDisclosure


Long
Period End2021-06-302021-03-312020-12-31
Value650640669
Percentage of LongTermDebtFairValue100.0100.0100.0

us-gaap:FairValueInputsLevel2, cabo:SeniorCreditFacilities, us-gaap:CarryingReportedAmountFairValueDisclosure


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value232815351541173117381745175313101314975
Percentage of LongTermDebtFairValue357.8239.6230.30.00.00.00.00.00.00.0

us-gaap:FairValueInputsLevel2, cabo:SeniorCreditFacilities, us-gaap:EstimateOfFairValueFairValueDisclosure


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value232115271534172517121712175113061306973
Percentage of LongTermDebtFairValue356.7238.4229.10.00.00.00.00.00.00.0

us-gaap:FairValueInputsLevel2, cabo:The2026NotesAndThe2028Notes, us-gaap:EstimateOfFairValueFairValueDisclosure


Long
Period End2021-06-302021-03-31
Value927922
Percentage of LongTermDebtFairValue142.5143.9

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive


Long
Period End2020-12-312019-12-31
Value1471542
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive100.0100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths


Long
Period End2021-06-302021-03-312020-12-312020-09-302019-12-31
Value3729253728
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths100.0100.0100.0100.0100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive


Long
Period End2020-12-312019-12-31
Value5491009
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive100.0100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour


Long
Period End2021-06-302021-03-312020-12-312020-09-302019-12-31
Value55754968100981
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour100.0100.0100.0100.0100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree


Long
Period End2021-06-302021-03-312020-12-312020-09-302019-12-31
Value7668478154
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree100.0100.0100.0100.0100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo


Long
Period End2021-06-302021-03-312020-12-312020-09-302019-12-31
Value5547295437
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo100.0100.0100.0100.0100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear


Long
Period End2021-06-302021-03-312020-09-30
Value16197.08
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear100.0100.0100.0

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent


Operating
Period End2020-12-312019-12-31
Value4.724.94
Percentage of OperatingLeaseWeightedAverageDiscountRatePercent100.0100.0

us-gaap:OtherAssetsMiscellaneousNoncurrent

us-gaap:OtherAssetsMiscellaneousNoncurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value4030000.03237000.04209000.03916000.03682000.05283000.02701000.01919000.0
Percentage of OtherAssetsMiscellaneousNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherCommitment

us-gaap:OtherCommitment


Other
Period End2020-12-31
Value45
Percentage of OtherCommitment100.0

us-gaap:OtherCommitmentDueAfterFifthYear

us-gaap:OtherCommitmentDueAfterFifthYear


Other
Period End2020-12-31
Value6775000.0
Percentage of OtherCommitmentDueAfterFifthYear100.0

us-gaap:OtherCommitmentDueInFifthYear

us-gaap:OtherCommitmentDueInFifthYear


Other
Period End2020-12-31
Value503000.0
Percentage of OtherCommitmentDueInFifthYear100.0

us-gaap:OtherCommitmentDueInFourthYear

us-gaap:OtherCommitmentDueInFourthYear


Other
Period End2020-12-31
Value847000.0
Percentage of OtherCommitmentDueInFourthYear100.0

us-gaap:OtherCommitmentDueInNextTwelveMonths

us-gaap:OtherCommitmentDueInNextTwelveMonths


Other
Period End2020-12-31
Value22
Percentage of OtherCommitmentDueInNextTwelveMonths100.0

us-gaap:OtherCommitmentDueInSecondYear

us-gaap:OtherCommitmentDueInSecondYear


Other
Period End2020-12-31
Value9691000.0
Percentage of OtherCommitmentDueInSecondYear100.0

us-gaap:OtherCommitmentDueInThirdYear

us-gaap:OtherCommitmentDueInThirdYear


Other
Period End2020-12-31
Value4517000.0
Percentage of OtherCommitmentDueInThirdYear100.0

us-gaap:OtherReceivablesNetCurrent

us-gaap:OtherReceivablesNetCurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value7799000.04384000.07225000.05180000.04658000.03737000.06186000.01819000.03737000.08149000.03990000.03402000.0
Percentage of OtherReceivablesNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherSundryLiabilitiesNoncurrent us-gaap:BalanceSheetLocation

us-gaap:OtherSundryLiabilitiesNoncurrent

us-gaap:OtherNoncurrentLiabilities


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value3437000.02966000.03549000.07263000.04338000.03073000.03043000.0460000.0
Percentage of OtherSundryLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PrepaidInsurance

us-gaap:PrepaidInsurance


Prepaid
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value949000.01350000.02200000.03199000.031000.0847000.01548000.01477000.0
Percentage of PrepaidInsurance100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PrepaidRent

us-gaap:PrepaidRent


Prepaid
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value2472000.02830000.01471000.02962000.02070000.03035000.01499000.01253000.0
Percentage of PrepaidRent100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization

us-gaap:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization


Property
Period End2021-06-302021-03-312020-12-31
Value176317871735
Percentage of PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization100.0100.0100.0

us-gaap:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization

us-gaap:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization


Property
Period End2021-06-302021-03-312020-12-31
Value175312781265
Percentage of PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization100.0100.0100.0

us-gaap:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization

us-gaap:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization


Property
Period End2021-06-302021-03-312020-12-31
Value351730663000
Percentage of PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization100.0100.0100.0

us-gaap:PurchaseObligation

us-gaap:PurchaseObligation


Purchase
Period End2020-12-31
Value249
Percentage of PurchaseObligation100.0

us-gaap:PurchaseObligationDueInFifthYear

us-gaap:PurchaseObligationDueInFifthYear


Purchase
Period End2020-12-31
Value3749000.0
Percentage of PurchaseObligationDueInFifthYear100.0

us-gaap:PurchaseObligationDueInFourthYear

us-gaap:PurchaseObligationDueInFourthYear


Purchase
Period End2020-12-31
Value15
Percentage of PurchaseObligationDueInFourthYear100.0

us-gaap:PurchaseObligationDueInNextTwelveMonths

us-gaap:PurchaseObligationDueInNextTwelveMonths


Purchase
Period End2020-12-31
Value138
Percentage of PurchaseObligationDueInNextTwelveMonths100.0

us-gaap:PurchaseObligationDueInSecondYear

us-gaap:PurchaseObligationDueInSecondYear


Purchase
Period End2020-12-31
Value55
Percentage of PurchaseObligationDueInSecondYear100.0

us-gaap:PurchaseObligationDueInThirdYear

us-gaap:PurchaseObligationDueInThirdYear


Purchase
Period End2020-12-31
Value35
Percentage of PurchaseObligationDueInThirdYear100.0

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueOutstanding us-gaap:AwardType

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueOutstanding

us-gaap:StockAppreciationRightsSARS


Sharebased
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-31
Value555479656568735854422434220.0181160.0231733236242622121.5
Percentage of SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Line plots across dimensions of each concept


TTM Greenblatt ROC
_
(None,)
T T M  Greenblatt  R O C_
us-gaap:AllocatedShareBasedCompensationExpense
us-gaap:AwardType, us-gaap:IncomeStatementLocation
(None, 'us-gaap:SellingGeneralAndAdministrativeExpenses')
Allocated Share Based Compensation Expenseus-gaap: Award Type, us-gaap: Income Statement Location
us-gaap:InterestExpenseDebt
us-gaap:DebtInstrument
(None,)
Interest Expense Debtus-gaap: Debt Instrument
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:PropertyPlantAndEquipmentGross
us-gaap:PropertyPlantAndEquipmentByType
(None,)
Property Plant And Equipment Grossus-gaap: Property Plant And Equipment By Type
us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill
us-gaap:IndefiniteLivedIntangibleAssetsByMajorClass
(None,)
Indefinite Lived Intangible Assets Excluding Goodwillus-gaap: Indefinite Lived Intangible Assets By Major Class
us-gaap:FiniteLivedIntangibleAssetsNet
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
(None,)
Finite Lived Intangible Assets Netus-gaap: Finite Lived Intangible Assets By Major Class
us-gaap:LongTermDebt
us-gaap:CreditFacility, us-gaap:LongtermDebtType
('us-gaap:SecuredDebt', None)
Long Term Debtus-gaap: Credit Facility, us-gaap: Longterm Debt Type
us-gaap:LongTermDebt
us-gaap:DebtInstrument
(None,)
Long Term Debtus-gaap: Debt Instrument
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:AmortizationOfFinancingCosts
us-gaap:DebtInstrument
(None,)
Amortization Of Financing Costsus-gaap: Debt Instrument