ATUS


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

Table of contents


us-gaap:StatementClassOfStock
us-gaap:CommonStockValue

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted

us-gaap:AllocatedShareBasedCompensationExpense
us-gaap:AwardType, us-gaap:PlanName

us-gaap:ComprehensiveIncomeNetOfTax
dei:LegalEntity
dei:LegalEntity
us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest
dei:LegalEntity

us-gaap:CostOfGoodsAndServicesSold
dei:LegalEntity

us-gaap:CostsAndExpenses
dei:LegalEntity

us-gaap:GainLossOnInvestments

us-gaap:GainsLossesOnExtinguishmentOfDebt
dei:LegalEntity
us-gaap:DebtInstrument

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
dei:LegalEntity

us-gaap:IncomeTaxExpenseBenefit
dei:LegalEntity

us-gaap:IncomeTaxesPaidNet
dei:LegalEntity

us-gaap:InterestExpense
dei:LegalEntity

us-gaap:InterestPaidNet
dei:LegalEntity

us-gaap:NetIncomeLoss
dei:LegalEntity
dei:LegalEntity, us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest
dei:LegalEntity
dei:LegalEntity, us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents

us-gaap:NonoperatingIncomeExpense
dei:LegalEntity

us-gaap:OperatingIncomeLoss
dei:LegalEntity

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax
dei:LegalEntity
dei:LegalEntity, us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossNetOfTax
dei:LegalEntity

us-gaap:OtherNonoperatingIncomeExpense
dei:LegalEntity

us-gaap:ProfitLoss
dei:LegalEntity
us-gaap:ProductOrService
us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax

us-gaap:Revenues
dei:LegalEntity
dei:LegalEntity, us-gaap:ProductOrService
us-gaap:ProductOrService

us-gaap:Assets
dei:LegalEntity

us-gaap:Liabilities
dei:LegalEntity

us-gaap:LiabilitiesAndStockholdersEquity
dei:LegalEntity

us-gaap:StockholdersEquity

us-gaap:AssetsCurrent
dei:LegalEntity

us-gaap:CashAndCashEquivalentsAtCarryingValue
dei:LegalEntity

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
dei:LegalEntity

us-gaap:AccountsReceivableNetCurrent
dei:LegalEntity

us-gaap:PrepaidExpenseAndOtherAssetsCurrent
dei:LegalEntity

us-gaap:PropertyPlantAndEquipmentGross
us-gaap:BusinessAcquisition
us-gaap:PropertyPlantAndEquipmentByType

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
dei:LegalEntity

us-gaap:AmortizationOfIntangibleAssets

us-gaap:PropertyPlantAndEquipmentNet
dei:LegalEntity

us-gaap:Goodwill
dei:LegalEntity
us-gaap:BusinessAcquisition

us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill
dei:LegalEntity
us-gaap:BusinessAcquisition

us-gaap:FiniteLivedIntangibleAssetsNet
dei:LegalEntity
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:OperatingLeaseRightOfUseAsset
dei:LegalEntity

us-gaap:OtherAssetsNoncurrent
dei:LegalEntity

us-gaap:AccountsPayableCurrent
dei:LegalEntity

us-gaap:ContractWithCustomerLiabilityCurrent
dei:LegalEntity

us-gaap:LiabilitiesCurrent
dei:LegalEntity

us-gaap:LongTermDebtCurrent
dei:LegalEntity
us-gaap:ShortTermDebtType

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OtherAccruedLiabilitiesCurrent
dei:LegalEntity

us-gaap:LongTermDebt
us-gaap:DebtInstrument
us-gaap:ShortTermDebtType

us-gaap:LongTermDebtNoncurrent
dei:LegalEntity
us-gaap:LongtermDebtType

us-gaap:DeferredIncomeTaxLiabilitiesNet
dei:LegalEntity

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent
dei:LegalEntity

us-gaap:MinorityInterest
dei:LegalEntity
dei:LegalEntity, us-gaap:StatementEquityComponents

us-gaap:OtherLiabilitiesNoncurrent
dei:LegalEntity

us-gaap:OperatingLeaseLiabilityNoncurrent
dei:LegalEntity

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:OperatingLeaseLiability

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:StockholdersEquity

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
us-gaap:StatementClassOfStock, us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents
us-gaap:StatementClassOfStock
us-gaap:CommonStockValue

us-gaap:AdditionalPaidInCapital

us-gaap:RetainedEarningsAccumulatedDeficit
dei:LegalEntity
dei:LegalEntity, us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax
dei:LegalEntity
dei:LegalEntity, us-gaap:StatementEquityComponents

us-gaap:TreasuryStockValue

us-gaap:MinorityInterest
dei:LegalEntity
dei:LegalEntity, us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodValueNewIssues
us-gaap:StatementClassOfStock, us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
dei:LegalEntity
dei:LegalEntity, us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents

us-gaap:NetCashProvidedByUsedInOperatingActivities
dei:LegalEntity

us-gaap:NetCashProvidedByUsedInInvestingActivities
dei:LegalEntity

us-gaap:NetCashProvidedByUsedInFinancingActivities
dei:LegalEntity

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
dei:LegalEntity

us-gaap:DeferredIncomeTaxExpenseBenefit
dei:LegalEntity

us-gaap:DepreciationDepletionAndAmortization
dei:LegalEntity

us-gaap:IncreaseDecreaseInAccountsPayable
dei:LegalEntity

us-gaap:IncreaseDecreaseInAccountsReceivable
dei:LegalEntity

us-gaap:NetCashProvidedByUsedInOperatingActivities
dei:LegalEntity

us-gaap:NetIncomeLoss
dei:LegalEntity
dei:LegalEntity, us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents

us-gaap:ProfitLoss
dei:LegalEntity

us-gaap:ShareBasedCompensation
dei:LegalEntity

us-gaap:NetCashProvidedByUsedInInvestingActivities
dei:LegalEntity

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment
dei:LegalEntity

us-gaap:NetCashProvidedByUsedInFinancingActivities
dei:LegalEntity
dei:LegalEntity
us-gaap:PaymentsOfDividends

us-gaap:PaymentsForRepurchaseOfCommonStock
us-gaap:PlanName
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

us-gaap:DeferredTaxLiabilities
dei:LegalEntity

us-gaap:DeferredTaxAssetsNet
dei:LegalEntity

us-gaap:DeferredTaxAssetsValuationAllowance
dei:LegalEntity

atus:AdjustmentstoAdditionalPaidinCapitalAmountofRedeemablePreferredStockVested
dei:LegalEntity
dei:LegalEntity, us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents

atus:AmortizationOfROUAssets
dei:LegalEntity

atus:AmortizationofActuarialGainsLossesandSettlementGainsLosses
atus:DerivativeInstrumentName, us-gaap:DerivativeInstrumentRisk
atus:CashReceivedFromInterestRateSwapUnwind

atus:DeferredFinancingCostsIncurredButUnpaid

atus:DepreciationDepletionAndAmortizationIncludingAssetImpairmentCharges
dei:LegalEntity
dei:LegalEntity, us-gaap:StatementEquityComponents
atus:DistributionMadeToLimitedLiabilityCompanyLLCMemberNonCashDistributionsPaid

atus:FinanceAndOperatingLeaseLesseeExpense

atus:FinanceLeaseCost

atus:GainLossonInvestmentsAndSaleOfAffiliatedInterests
dei:LegalEntity
dei:LegalEntity
atus:NonCashContributionsDistributionsFromParent
dei:LegalEntity, us-gaap:StatementEquityComponents
dei:LegalEntity
atus:NonCashContributionsFromParent
dei:LegalEntity
atus:NonCashDistributionsToParent
dei:LegalEntity, us-gaap:StatementEquityComponents

atus:NoncashContributionFromParent

atus:OperatingLeaseExpenseNet
dei:LegalEntity
atus:OtherComprehensiveIncomeLossAmortizationofActuarialGainsLossesandSettlementGainsLossesIncludedinNetPeriodicPensionCost

atus:OtherComprehensiveIncomeLossDefinedBenefitPlanAdjustmentforSettlementGainLossTax
dei:LegalEntity

atus:OtherComprehensiveIncomeLossDefinedBenefitPlanSettlementGainLossAfterTax
dei:LegalEntity

atus:OtherComprehensiveIncomeLossDefinedBenefitPlanSettlementGainLossBeforeTax
dei:LegalEntity

atus:OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansPlanAmendmentsNetOfTax
dei:LegalEntity
dei:LegalEntity, us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents

atus:PerformanceStockUnitsAndRestrictedStockWhosePerformanceMetricsHaveNotBeenMetAndAreNotIncludedInDilutedWeightedAverageSharesOutstanding

atus:ProceedsRelatedToSaleOfEquipmentAndCostsAndDisposal
dei:LegalEntity

atus:ReevaluationOfDeferredTaxLiabilityRelatingToStateTaxIncrease

atus:RelatedPartyTransactionCostandExpenses

atus:RelatedPartyTransactionOtherOperatingExpense

atus:RelatedPartyTransactionProgrammingandOtherDirectCosts

atus:RestructuringExpenseRelatingToRightOfUseOperatingLeases

atus:RestructuringandOtherExpense
dei:LegalEntity
us-gaap:StatementClassOfStock, us-gaap:StatementEquityComponents
atus:RetirementOfTreasuryStockInConnectionWithNeptuneAcquisition
us-gaap:StatementEquityComponents

atus:StateTaxBenefitFromDecouplingTheCARESAct

atus:TotalFinanceLeaseExpense

us-gaap:AdjustmentsToAdditionalPaidInCapitalIncreaseInCarryingAmountOfRedeemablePreferredStock
dei:LegalEntity
dei:LegalEntity, us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents

us-gaap:AdjustmentsToAdditionalPaidInCapitalOther
us-gaap:StatementEquityComponents

us-gaap:AmortizationOfFinancingCostsAndDiscounts
dei:LegalEntity

us-gaap:BusinessCombinationAcquisitionRelatedCosts
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationConsiderationTransferred1
us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType

us-gaap:CapitalExpendituresIncurredButNotYetPaid

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect
dei:LegalEntity
dei:LegalEntity, us-gaap:StatementEquityComponents
us-gaap:DistributionMadeToLimitedLiabilityCompanyLLCMemberCashDistributionsPaid
dei:LegalEntity
us-gaap:DividendsCash
dei:LegalEntity, us-gaap:StatementEquityComponents

us-gaap:EffectOfExchangeRateOnCashAndCashEquivalents
dei:LegalEntity

us-gaap:FinanceLeaseInterestExpense

us-gaap:FinanceLeaseInterestPaymentOnLiability

us-gaap:FinanceLeaseRightOfUseAssetAmortization

us-gaap:GainLossOnInterestRateDerivativeInstrumentsNotDesignatedAsHedgingInstruments
dei:LegalEntity

us-gaap:GainLossOnPriceRiskDerivativeInstrumentsNotDesignatedAsHedgingInstruments
dei:LegalEntity
us-gaap:DebtInstrument
us-gaap:BusinessAcquisition
us-gaap:GoodwillAcquiredDuringPeriod

us-gaap:IncreaseDecreaseDueFromAffiliates
dei:LegalEntity

us-gaap:IncreaseDecreaseInAccruedLiabilities
dei:LegalEntity

us-gaap:IncreaseDecreaseInDeferredRevenue
dei:LegalEntity

us-gaap:IncreaseDecreaseInDerivativeLiabilities
dei:LegalEntity

us-gaap:IncreaseDecreaseInIncomeTaxesReceivable

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets
dei:LegalEntity

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
us-gaap:AwardType

us-gaap:InvestmentIncomeInterest
dei:LegalEntity
us-gaap:CreditFacility, us-gaap:DebtInstrument
us-gaap:LineOfCreditFacilityPeriodicPayment

us-gaap:NotesIssued1

us-gaap:OperatingLeasePayments

us-gaap:OperatingLeasesRentExpenseNet

us-gaap:OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax
dei:LegalEntity

us-gaap:OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax
dei:LegalEntity

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax
dei:LegalEntity

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax
dei:LegalEntity

us-gaap:OtherCostAndExpenseOperating
dei:LegalEntity

us-gaap:OtherOperatingActivitiesCashFlowStatement
dei:LegalEntity

us-gaap:PaymentForContingentConsiderationLiabilityFinancingActivities
dei:LegalEntity

us-gaap:PaymentsForProceedsFromInvestments
dei:LegalEntity

us-gaap:PaymentsForProceedsFromOtherInvestingActivities
dei:LegalEntity

us-gaap:PaymentsForRestructuring
us-gaap:RestructuringCostAndReserve
us-gaap:RestructuringCostAndReserve, us-gaap:RestructuringPlan

us-gaap:PaymentsOfFinancingCosts
dei:LegalEntity

us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired
dei:LegalEntity

us-gaap:PaymentsToAcquireIntangibleAssets
dei:LegalEntity

us-gaap:ProceedsFromIssuanceOfSecuredDebt
dei:LegalEntity
us-gaap:DerivativeInstrumentRisk

us-gaap:ProceedsFromIssuanceOfSeniorLongTermDebt
dei:LegalEntity

us-gaap:ProceedsFromLinesOfCredit
dei:LegalEntity

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities
dei:LegalEntity

us-gaap:ProceedsFromRepaymentsOfNotesPayable
dei:LegalEntity

us-gaap:ProceedsFromSaleOfInterestInPartnershipUnit
us-gaap:SubsequentEventType

us-gaap:ProceedsFromStockOptionsExercised

us-gaap:ProvisionForDoubtfulAccounts
dei:LegalEntity

us-gaap:RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty

us-gaap:RelatedPartyTransactionPurchasesFromRelatedParty

us-gaap:RepaymentsOfLinesOfCredit
dei:LegalEntity

us-gaap:RepaymentsOfLongTermCapitalLeaseObligations
dei:LegalEntity

us-gaap:RepaymentsOfNotesPayable
dei:LegalEntity

us-gaap:RepaymentsOfSecuredDebt
dei:LegalEntity

us-gaap:RepaymentsOfSeniorDebt
dei:LegalEntity

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

us-gaap:RestructuringReserveSettledWithoutCash2
dei:LegalEntity

us-gaap:RevenueFromRelatedParties

us-gaap:RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability
us-gaap:PlanName
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue
us-gaap:PlanName
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice
us-gaap:PlanName
us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice
us-gaap:PlanName
us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
us-gaap:StatementClassOfStock, us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodValueConversionOfConvertibleSecuritiesNetOfAdjustments

us-gaap:StockIssuedDuringPeriodValueTreasuryStockReissued
us-gaap:StatementEquityComponents
dei:LegalEntity
us-gaap:StockholdersEquityOther
dei:LegalEntity, us-gaap:StatementEquityComponents

us-gaap:TreasuryStockRetiredCostMethodAmount
us-gaap:StatementClassOfStock, us-gaap:StatementEquityComponents
us-gaap:StatementEquityComponents

atus:AlternativeMinimumTaxCreditReceivable
us-gaap:BusinessAcquisition, us-gaap:FiniteLivedIntangibleAssetsByMajorClass
atus:BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedCurrentAssetsExcludingReceivables

atus:CarryingAmountOfSeniorNotes

atus:CarryingAmountOfSeniorNotesAndSeniorGuaranteedNotes
dei:LegalEntity

atus:CarryingAmountOfSeniorNotesAndSeniorSecuredNotes
dei:LegalEntity

atus:CarryingValueOfCreditFacilityDebt

atus:CostOfSharesPaidInConnectionWithTenderOffer

atus:DeferredTaxAssetsOperatingLeaseLiability
dei:LegalEntity

atus:DeferredTaxAssetsOperatingLossandTaxCreditCarryforwards
dei:LegalEntity

atus:DeferredTaxLiabilitiesFairValueAdjustments
dei:LegalEntity

atus:DeferredTaxLiabilitiesFixedAssetsAndIntangibles
dei:LegalEntity

atus:DeferredTaxLiabilitiesOperatingLeaseAsset
dei:LegalEntity
atus:DerivativeInstrumentName, us-gaap:DerivativeInstrumentRisk
atus:DiscountFromFairValueOfInterestRateSwaps
us-gaap:ConsolidatedEntities
atus:EnterpriseValueOfSubsidiary

atus:FaceAmountOfCreditFacilityDebt

atus:FaceAmountOfSeniorNotes

atus:FaceAmountOfSeniorNotesAndSeniorGuaranteedNotes
dei:LegalEntity

atus:FaceAmountOfSeniorNotesAndSeniorSecuredNotes
dei:LegalEntity

atus:FinanceLeasesFutureMinimumPaymentsInterestIncludedInPayments

atus:FinanceLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments

atus:Guarantees

atus:GuaranteesDueinNextTwelveMonths

atus:GuaranteesDueinSecondandThirdYear

atus:ImpliedEnterpriseValueOfSubsidiary

atus:LettersofCredit

atus:LettersofCreditDueinFourthandFifthYear

atus:LettersofCreditDueinNextTwelveMonths

atus:LettersofCreditDueinSecondandThirdYear

atus:LongtermDebtRightOfUseFinancingObligationsExcludingCurrentMaturities
dei:LegalEntity

atus:MaximumAmountOfferedOnCommencementOfTenderOffer
dei:LegalEntity
atus:Membershipequitybeforenoncontrollinginterest
dei:LegalEntity, us-gaap:StatementEquityComponents
dei:LegalEntity
atus:Membershipinterestbeforeaccumulatedcomprehensiveloss
dei:LegalEntity, us-gaap:StatementEquityComponents

atus:OperatingLeasesFutureMinimumPaymentsInterestIncludedInPayments

atus:OperatingLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments

atus:ShareBasedCompensationUnrecognizedDeferredCompensationCost
us-gaap:AwardType, us-gaap:PlanName
us-gaap:AwardType, us-gaap:PlanName
atus:SharebasedCompensationArrangementWeightedAverageFairValuePerUnit

atus:TotalStockholdersEquityBeforeAccumulatedOtherComprehensiveIncomeLossandNoncontrollingInterest

atus:UnsettledTreasuryShares

us-gaap:AllowanceForDoubtfulAccountsReceivable

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent
dei:LegalEntity
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment
us-gaap:CashAndCashEquivalents, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:CashAndCashEquivalentsFairValueDisclosure

us-gaap:CollateralizedAgreements

us-gaap:ContractWithCustomerAssetNet

us-gaap:ContractWithCustomerLiability

us-gaap:ContractualObligation

us-gaap:ContractualObligationDueAfterFifthYear

us-gaap:ContractualObligationDueInFourthAndFifthYear

us-gaap:ContractualObligationDueInNextTwelveMonths

us-gaap:ContractualObligationDueInSecondAndThirdYear

us-gaap:DebtInstrumentFaceAmount
dei:LegalEntity, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis, us-gaap:LongtermDebtType
us-gaap:DebtInstrumentFairValue
us-gaap:FairValueByMeasurementBasis
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:DeferredFinanceCostsGross

us-gaap:DeferredIncomeTaxLiabilities
dei:LegalEntity

us-gaap:DeferredTaxAssetsDerivativeInstruments
dei:LegalEntity

us-gaap:DeferredTaxAssetsGross
dei:LegalEntity

us-gaap:DeferredTaxAssetsInvestmentInSubsidiaries
dei:LegalEntity

us-gaap:DeferredTaxAssetsOther
dei:LegalEntity

us-gaap:DeferredTaxAssetsTaxCreditCarryforwardsResearch
dei:LegalEntity

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits
dei:LegalEntity

us-gaap:DeferredTaxAssetsTaxDeferredExpenseOther
dei:LegalEntity

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsRestructuringCharges
dei:LegalEntity

us-gaap:DeferredTaxLiabilitiesInvestmentInNoncontrolledAffiliates
dei:LegalEntity

us-gaap:DeferredTaxLiabilitiesPrepaidExpenses
dei:LegalEntity

us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation

us-gaap:DefinedBenefitPlanAmountsRecognizedInBalanceSheet

us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate

us-gaap:DefinedBenefitPlanBenefitObligation

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo

us-gaap:DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear

us-gaap:DefinedBenefitPlanFairValueOfPlanAssets
us-gaap:DefinedBenefitPlanByPlanAssetCategories
us-gaap:DefinedBenefitPlanByPlanAssetCategories, us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:DefinedBenefitPlanFundedStatusOfPlan

us-gaap:DefinedBenefitPlanWeightedAverageAssetAllocations
us-gaap:DefinedBenefitPlanByPlanAssetCategories
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:DerivativeAssets

us-gaap:DerivativeAssetsCurrent
dei:LegalEntity

us-gaap:DerivativeAssetsNoncurrent
dei:LegalEntity

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

us-gaap:DerivativeFairValueOfDerivativeLiability
us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation
us-gaap:HedgingDesignation
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:DerivativeLiabilities

us-gaap:DerivativeLiabilitiesNoncurrent
dei:LegalEntity
atus:DerivativeInstrumentName, us-gaap:DerivativeInstrumentRisk
us-gaap:DerivativeNotionalAmount
us-gaap:CounterpartyName, us-gaap:RelatedPartyTransactionsByRelatedParty
us-gaap:DueFromRelatedParties
us-gaap:RelatedPartyTransactionsByRelatedParty

us-gaap:DueFromRelatedPartiesCurrent
dei:LegalEntity

us-gaap:DueToAffiliateCurrent
dei:LegalEntity
dei:LegalEntity, us-gaap:CounterpartyName, us-gaap:RelatedPartyTransactionsByRelatedParty
us-gaap:DueToRelatedPartiesCurrentAndNoncurrent
us-gaap:CounterpartyName, us-gaap:RelatedPartyTransactionsByRelatedParty
us-gaap:RelatedPartyTransactionsByRelatedParty

us-gaap:EmployeeRelatedLiabilitiesCurrent
dei:LegalEntity

us-gaap:FinanceLeaseLiability

us-gaap:FinanceLeaseLiabilityCurrent

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:FinanceLeaseRightOfUseAsset

us-gaap:FinanceLeaseWeightedAverageDiscountRatePercent
us-gaap:BusinessAcquisition
us-gaap:FiniteLivedCustomerRelationshipsGross

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization
dei:LegalEntity
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:FiniteLivedIntangibleAssetsGross
us-gaap:BusinessAcquisition, us-gaap:FiniteLivedIntangibleAssetsByMajorClass
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:InterestPayableCurrent
dei:LegalEntity
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:InvestmentsFairValueDisclosure

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths
us-gaap:CreditFacility, us-gaap:DebtInstrument
us-gaap:LettersOfCreditOutstandingAmount
dei:LegalEntity
us-gaap:LimitedLiabilityCompanyLlcMembersEquityIncludingPortionAttributableToNoncontrollingInterest
us-gaap:CreditFacility, us-gaap:DebtInstrument
us-gaap:LineOfCredit
us-gaap:CreditFacility, us-gaap:DebtInstrument
us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity
us-gaap:CreditFacility, us-gaap:DebtInstrument
us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity

us-gaap:LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalAfterYearFive

us-gaap:LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearFive

us-gaap:LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearFour

us-gaap:LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearThree

us-gaap:LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearTwo

us-gaap:LongTermDebtAndCapitalLeaseObligationsRepaymentsOfPrincipalInNextTwelveMonths
dei:LegalEntity
us-gaap:MembersEquity
dei:LegalEntity, us-gaap:StatementEquityComponents
us-gaap:ConsolidatedEntities, us-gaap:SubsequentEventType
us-gaap:MinorityInterestOwnershipPercentageByNoncontrollingOwners

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities

us-gaap:PurchaseObligation

us-gaap:PurchaseObligationDueAfterFifthYear

us-gaap:PurchaseObligationDueInFourthAndFifthYear

us-gaap:PurchaseObligationDueInNextTwelveMonths

us-gaap:PurchaseObligationDueInSecondAndThirdYear

us-gaap:RestrictedCashCurrent
dei:LegalEntity

us-gaap:RestrictedInvestmentsNoncurrent
dei:LegalEntity

us-gaap:RestructuringAndRelatedCostCostIncurredToDate1
us-gaap:RestructuringPlan

us-gaap:RestructuringReserve
us-gaap:RestructuringCostAndReserve
us-gaap:RestructuringCostAndReserve, us-gaap:RestructuringPlan
us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:SeniorNotes

us-gaap:SeniorNotesCurrent
us-gaap:PlanName
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
us-gaap:PlanName
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice
us-gaap:PlanName
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue
us-gaap:PlanName
us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1

us-gaap:StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1

us-gaap:TemporaryEquityCarryingAmountAttributableToParent
dei:LegalEntity

Plots across concepts


IncomeStatement
Other Comprehensive Income Loss Net Of Tax
Expenses
Other Nonoperating Income Expense
Balance Sheet
Stockholders Equity
Assets
Cash And Cash Equivalents At Carrying Value
Current Assets
Prepaid Expense And Other Assets Current
NonCurrent Assets
Other Assets Noncurrent
PropertyPlantAndEquipmentNet
Property Plant And Equipment Net
Liabilities
Operating Lease Liability
Current Liabilities
Operating Lease Liability Current
Noncurrent Liabilities
Minority Interest
Stockholders Equity
Retained Earnings Accumulated Deficit
CashFlow
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInOperatingActivities
Increase Decrease In Accounts Payable
NetCashProvidedByUsedInInvestingActivities
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInFinancingActivities
Net Cash Provided By Used In Financing Activities
Shares
Weighted Average Number Of Shares Outstanding Basic
OperatingLeaseLiability
Operating Lease Liability Current
NonoperatingIncomeExpense
Nonoperating Income Expense
LesseeOperatingLeaseLiabilityPaymentsDue
Lessee Operating Lease Liability Payments Due Next Twelve Months
FiniteLivedIntangibleAssets
Finite Lived Intangible Assets Net
AccountsReceivable
Allowance For Doubtful Accounts Receivable Current

Tables

  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
 us-gaap:CommonStockValue us-gaap:StatementClassOfStock us-gaap:CommonClassA▂▂▂▅▅▆▇▆▇▇███▁▁▁▁2.7132.8222.9723.8394.0054.2614.5724.5064.6814.9094.9615.1074.9282.472.472.472.47NA0.0NANA
 us-gaap:CommonStockValue us-gaap:StatementClassOfStock us-gaap:CommonClassB▁▁▁▁▁▁▁▁▁▁▂▂▂████1.8581.8581.8591.861.8621.8621.8621.8631.8721.8882.132.1312.4434.9014.9014.9014.901NA0.0NANA
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding ▁█463.637475.448NA571.031589.466621.414NA646.006668.648NANA732.963737.069NA696.055737.069NANANANANA
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic ▁█456.955469.233NA571.031587.587621.414NA643.797668.031695.528NA732.963737.069NANA737.069NANANANANA
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount █▁0.910.495NANA28.51422.525412NA2.0181.29211.480467NA5.8415.5125.165746NANANANANANANA
us-gaap:EarningsPerShareBasic ▆██▂▄▂▂▃▃▂▅▃▁0.430.580.61-0.010.190.00.00.120.13-0.040.290000000000000040.04-0.13NA3.2800000000000002-0.26NANANANANA
us-gaap:EarningsPerShareDiluted ▆██▁▃0.430.580.6-0.010.19NA0.00.120.13NA0.290000000000000040.04-0.13NA3.2800000000000002-0.26NANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
 COGS Ratio dei:LegalEntity atus:CSCHoldings▇▅█▃▅▄▅▃▄▁2516.0082478.8212535.4212433.9862474.9792450.2562474.5492438.6622451.0812396.567NANANANANANANANANANANA
 Cost Ratio dei:LegalEntity atus:CSCHoldings▇▆█▅▆▅▆▅▅▃▅▄▂▁2516.0082478.8212535.4212433.9862474.9792450.2562474.5492438.6622451.0812396.5672454.942417.8012364.1532329.714NANANANANANANA
 EBT Margin dei:LegalEntity atus:CSCHoldings▇▅█▃▅▄▅▃▄▁2516.0082478.8212535.4212433.9862474.9792450.2562474.5492438.6622451.0812396.567NANANANANANANANANANANA
 Net profit Margin dei:LegalEntity atus:CSCHoldings▇▆█▅▆▅▆▅▅▃▅▄▂▁2516.0082478.8212535.4212433.9862474.9792450.2562474.5492438.6622451.0812396.5672454.942417.8012364.1532329.714NANANANANANANA
 Operating Margin dei:LegalEntity atus:CSCHoldings▇▆█▅▆▅▆▅▅▃▅▄▂▁2516.0082478.8212535.4212433.9862474.9792450.2562474.5492438.6622451.0812396.5672454.942417.8012364.1532329.714NANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
 TTM Greenblatt ROC _ _███▇▆▅▅▆▆▅▇▆▄▄▂▁▃▃▂626.765608.458608.719549.293508.707448.57427.275471.515482.543442.478528.724505.558335.059313.038225.504134.864256.782248.234217.224NANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
us-gaap:AllocatedShareBasedCompensationExpense ▁█27.64628.281NANA34.31827.946NANANANANANANANA16.10814.44817.454NANANANA
us-gaap:ComprehensiveIncomeNetOfTax ▃▃▃▂▃▂▂▂▂▂▃▂▂▂█▂▁▂▂▂▂198.608281.111342.924-1.385112.323-10.78522.59966.19380.105-21.428203.59440.02-97.353-125.1862247.94-184.047-479.439-76.425-237.13-169.819-282.354
 us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest dei:LegalEntity atus:CSCHoldingsNA4.4035.7971.9660.213-0.681.0020.1570.043-0.199NANANANANANANANANANANA
us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest ▃▃▃▂▃▂▂▂▂▂▃▂▂▂█▂▁▂▂▂▂201.882285.514348.7210.581112.536-11.46523.60166.3580.148-21.627204.31641.206-97.502-125.1842248.79-183.912-479.074-76.188-236.471-169.563-282.718
us-gaap:CostOfGoodsAndServicesSold ▇▇▅▁██▇▄▄▄▂▂▂▁849.872851.864831.119783.934860.875864.514847.653820.896818.994812.985800.055790.533795.127787.361NANANANANANANA
us-gaap:CostsAndExpenses ▆▆▇▆▇▇▇▇▇▇▇▇▇▇██▇▇▇█▁1889.2431870.3631926.7021884.6931966.2722001.6862047.2741967.1471968.5381954.0891926.2161912.2432029.0942016.6762139.8742192.3112071.5592057.4422088.6772117.442778.098
us-gaap:GainLossOnInvestments ▆▆██▇▁▅▆▆▇▁▄▅▃▆▅▆▆▆▅▆125.073.453263.745312.714197.594-454.896-4.725120.27798.794254.725-461.146-111.684-58.42-252.57667.466-18.957.13131.65858.42924.83358.634
us-gaap:GainsLossesOnExtinguishmentOfDebt -51.712NA0.0-250.4890.00.0-84.207-0.503-1.194-157.902-7.1880.0-36.911-4.7050.0-38.858-561.3820.0-107.7010.0-19.948
 us-gaap:GainsLossesOnExtinguishmentOfDebt dei:LegalEntity atus:CSCHoldings-51.712NA0.0-250.4890.00.0-69.0340.0-1.194-157.902NANANANANANANANANANANA
 us-gaap:GainsLossesOnExtinguishmentOfDebt us-gaap:DebtInstrument atus:CSCHoldings10.875NotesdueOctober152025NANA0.0NANANANANANANANANANANANANANANANANANA
 us-gaap:GainsLossesOnExtinguishmentOfDebt us-gaap:DebtInstrument atus:CSCHoldings6.625NotesdueOctober152025NANA0.0NANANANANANANANANANANANANANANANANANA
 us-gaap:GainsLossesOnExtinguishmentOfDebt us-gaap:DebtInstrument atus:CSCHoldings7.750NotesdueJuly152025NANA0.0NANANANANANANANANANANANANANANANANANA
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest ▇██▆▇▆▅▆▆▅▆▆▅▄▄▄▁▅▃▄▄262.754390.546366.9730.457170.30315.497-7.924115.267127.57-47.784145.478129.707-103.594-189.652-168.621-316.774-723.858-122.096-394.383-290.783-190.836
us-gaap:IncomeTaxExpenseBenefit ██████████████▁▇▇█▇▇█61.82112.00730.70133.18658.82617.035-9.25537.87141.16-22.586-68.3395.968-5.59-60.703-2423.303-134.688-249.068-45.908-158.334-118.2391.293
us-gaap:IncomeTaxesPaidNet █▂▂▄▃▁▂▁▂▁▁▁▂▁▁▂▃▁▁▁97.2999.7278.11243.89727.2111.1953.8060.216.1370.111.5193.2089.967-1.0272.616.95417.8891.553-3.8040.124NA
us-gaap:InterestExpense ▂▂▂▂▄▄▅▅▅▅▆▅▅▅▅▅▇▇██▁319.435316.339313.681322.618351.025365.211378.258388.8381.218388.283398.887389.594390.543377.258370.402379.064420.372433.294440.675446.242293.795
us-gaap:InterestPaidNet ▃▃▂▇▁▇▂▅▃▇▃▆▂▇▃▇▇█275.298310.878263.299470.304198.954474.268265.547406.966288.71475.109307.314441.923267.468464.763283.763481.087475.412524.864NANANA
us-gaap:NetIncomeLoss ▃▃▃▂▃▂▂▂▂▂▃▂▂▂█▂▁▂▂▂▁197.66274.136330.472-4.695111.264-0.8580.32977.23986.367-24.999213.08632.553-97.855-128.9512253.832-182.221-475.155-76.425-236.708-172.809-281.765
us-gaap:NetIncomeLossAttributableToNoncontrollingInterest ▅▆█▄▂▁▃▂▂▂▃▃▂▂▃▂▂▂▂▂▁3.2744.4035.7971.9660.213-0.681.0020.1570.043-0.1990.7221.186-0.1490.0020.850.1350.3650.2370.6590.256-0.364
us-gaap:NonoperatingIncomeExpense ▇██▅▇▆▆▇▇▆▆▇▆▅▆▆▁▇▄▆█-364.011-217.912-241.749-518.836-338.404-433.073-435.199-356.248-354.973-490.262-383.246-375.851-438.653-502.69-394.125-451.638-980.64-372.206-611.607-433.562-236.239
 us-gaap:NonoperatingIncomeExpense dei:LegalEntity atus:CSCHoldings▅█▇▁▅▃▃▅▅▂-364.011-217.912-241.749-519.035-338.405-433.419-411.855-331.305-330.573-466.018NANANANANANANANANANANA
us-gaap:OperatingIncomeLoss ███▇▇▆▆▆▆▆▇▇▄▄▃▂▄▃▃▂▁626.765608.458608.719549.293508.707448.57427.275471.515482.543442.478528.724505.558335.059313.038225.504134.864256.782248.234217.224142.77945.403
us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax ▃▅▁▁▁▂▂▂▂▂█▂▅▃▃▃▃-0.140.619-0.644-0.582-0.517-0.424-0.46-0.28-0.243-0.1811.692-0.410.5760.00.00.00.0NANANANA
 us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax dei:LegalEntity atus:CSCHoldings▄█▁▁▂▂▂▃▃▄-0.140.619-0.644-0.582-0.517-0.424-0.46-0.28-0.243-0.181NANANANANANANANANANANA
 us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax dei:LegalEntity,us-gaap:StatementEquityComponents atus:CSCHoldings,us-gaap:AccumulatedOtherComprehensiveIncomeNA0.619NA-0.582-0.517-0.424NA-0.28-0.243-0.181NANANANANANANANANANANA
 us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax dei:LegalEntity,us-gaap:StatementEquityComponents atus:CSCHoldings,us-gaap:ParentNA0.619NA-0.582-0.517-0.424NA-0.28-0.243-0.181NANANANANANANANANANANA
 us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax us-gaap:StatementEquityComponents us-gaap:AccumulatedOtherComprehensiveIncome▁█-0.140.619NA-0.582-0.517-0.424NA-0.28-0.243-0.181NANANANANANANANANANANA
 us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax us-gaap:StatementEquityComponents us-gaap:Parent▁█-0.140.619NA-0.582-0.517-0.424NA-0.28-0.243-0.181NANANANANANANANANANANA
us-gaap:OtherComprehensiveIncomeLossNetOfTax ▄▅▆▄▄▁█▁▂▄▁▅▃▄▂▃▂▃▃▄▃0.9486.97512.4523.311.059-9.92722.27-11.046-6.2623.571-9.4927.4670.5023.765-5.892-1.826-4.2840.0-0.4222.99-0.589
us-gaap:OtherNonoperatingIncomeExpense ███▇▇▇▇▇▇▇▇▇▆▁▅▇▇▆▇█▇2.4672.8592.31.6850.6690.9231.117-0.2260.2120.08-0.011-0.186-0.629-11.658-2.62-0.0651.121-2.11.7812.5310.006
us-gaap:ProfitLoss ▃▃▃▂▃▂▂▂▂▂▃▂▂▂█▂▁▂▂▂▁200.934278.539336.269-2.729111.477-1.5381.33177.39686.41-25.198213.80833.739-98.004-128.9492254.682-182.086-474.79-76.188-236.049-172.553-282.129
 us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ProductOrService us-gaap:Franchise▇▇▃▂▆▅▁▃▃▄█▃▂▃65.83866.05663.95163.26465.2864.9162.53263.53963.9264.23666.57263.70363.36263.83NANANANANANANA
us-gaap:Revenues █████████▇██▇▇▇▇▇▇▇▇▁2516.0082478.8212535.4212433.9862474.9792450.2562474.5492438.6622451.0812396.5672454.942417.8012364.1532329.7142359.8082327.1752328.3412302.2592305.9012260.221823.501
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
us-gaap:Assets ▂▁▂▃▅▂▃▂▂▂▂▃▃▆▅▇█33531.95833169.83133376.6633900.01234813.84633396.4834108.12233773.50833779.65133559.37333613.80833956.56733914.51735279.40934775.22535431.15236016.322NA36474.249NANA
us-gaap:Liabilities ███▆▇▄▄▄▃▃▂▂▂▂▁▅▅34880.95234554.334554.03633138.65933640.67231740.25331720.30931466.9331070.95630357.96829803.56530105.79529877.15929647.78629048.09531972.46232387.695NA34376.26NANA
us-gaap:LiabilitiesAndStockholdersEquity ▂▁▂▃▅▂▃▂▂▂▂▃▃▆▅▇█33531.95833169.83133376.6633900.01234813.84633396.4834108.12233773.50833779.65133559.37333613.80833956.56733914.51735279.40934775.22535431.15236016.322NA36474.249NANA
us-gaap:StockholdersEquity ▁▁▁▃▄▄▅▅▅▅▆▆▆██▆▆-1298.94-1334.169-1141.03734.5461148.8481581.7972269.9642080.9712525.6253002.973670.9413662.43859.8065395.4455494.3013067.7333262.667NA2029.555NANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
us-gaap:AssetsCurrent ▁▁▂▄█▂▄▁▁▁▂▃▂▆▂▃▃800.567830.856976.5661606.8862553.513927.6141381.356817.779742.919711.042903.2541112.503958.1671931.388853.561125.4611169.077NA1704.919NANA
us-gaap:CashAndCashEquivalentsAtCarryingValue ▁▁▂▁█▁▃▁▁▁▂▂▂▆▂▃▂221.319220.571278.422119.0551952.142244.491701.898175.091138.715123.007298.781486.208381.141427.651273.329550.131274.941NA486.792NANA
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents ▁▁▂▄█▁▃▁▁▁▂▂▂▆▂▃▃▂▂█▃221.583220.835278.686984.3251952.406244.755702.16175.352138.975123.265299.038486.461381.3931427.904273.581595.336625.313488.274503.0931968.918597.554
us-gaap:AccountsReceivableNetCurrent ▅▄▇▅▄▇█▇▆▅█▇▄▁▃▂▁404.15376.155442.581405.005387.739441.696457.118442.71420.321405.03448.399436.55382.207330.761370.765344.742328.84NA349.626NANA
us-gaap:PrepaidExpenseAndOtherAssetsCurrent ▅▇▆▇▇█▇▆▅▅▃▅▅▃▃▂▁167.198221.819200.252215.973209.916237.228215.304195.163182.401181.726136.285167.836166.963142.366135.313109.65293.312NA88.151NANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
us-gaap:PropertyPlantAndEquipmentGross NANA12237.839NANANA11030.322NANANA9873.552NANANA8663.408NANANA7636.932NANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:BusinessAcquisition atus:NewJerseyCableAssetsNANANANANANANANANANANANANANANANANANANANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType atus:CustomerPremiseEquipmentNANA1845.83NANANA1563.729NANANA1354.51NANANA1093.726NANANANANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType atus:EquipmentandSoftwareNANA1237.057NANANA1111.577NANANA1083.166NANANA917.698NANANA735.012NANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType atus:HeadendsandRelatedEquipmentNANA2158.704NANANA2023.684NANANA1852.105NANANA1626.293NANANA1482.631NANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType atus:InfrastructureNANA5964.419NANANA5314.322NANANA4595.143NANANA3998.503NANANA3740.494NANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:BuildingAndBuildingImprovementsNANA481.693NANANA457.174NANANA411.573NANANA394.421NANANA390.337NANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:ConstructionInProgressNANA174.61NANANA192.571NANANA215.684NANANA286.702NANANA84.321NANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:FurnitureAndFixturesNANA65.724NANANA63.478NANANA57.448NANANA52.545NANANA45.576NANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:LandNANA48.791NANANA48.426NANANA48.426NANANA47.563NANANA47.715NANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:LeaseholdImprovementsNANA110.037NANANA103.734NANANA109.11NANANA108.071NANANA104.309NANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:TransportationEquipmentNANA150.974NANANA151.627NANANA146.387NANANA137.886NANANA135.488NANA
us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment ███▇▇▆▆▆▅▅▄▃▃▃▂▂▁6784.3186639.7716431.8436158.2615880.5045601.3685276.9215058.1984704.5124384.564044.6713393.6283393.6282983.6962599.5792181.3061794.11NA1039.297NANA
us-gaap:AmortizationOfIntangibleAssets ▃▃▄▃▄▄▄▄▄▄▄▄▄▅▇█▆▅▅▅▁161.994165.114181.914172.589183.031201.099194.637191.358201.279200.619208.173208.172226.052231.817360.15426.419317.219238.019250.416258.6732.389
us-gaap:PropertyPlantAndEquipmentNet ▅▃▂▂▁▂▂▂▃▂▃▂▁▃▆▇█6023.0875843.5725805.9965760.7045723.1095781.0055753.4015797.0595814.9655772.0265828.8815760.4795694.8125819.5446063.8296161.5116228.668NA6597.635NANA
us-gaap:Goodwill █▆▆▆▆▆▆▆▆▂▂▂▁▂▁▁▁8206.428160.5668160.5668160.5018142.3098142.3098142.3098138.5118138.0868012.4168012.4168012.4168004.8088019.8497996.767993.4997993.469NA7992.7NANA
us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill █▃▃▃▁▁▁▁▁▁▁▁▁▁▁▁▁13216.35513068.01713068.01713068.01713020.08113020.08113020.08113020.08113020.08113020.08113020.08113020.08113020.08113020.08113020.08113020.08113020.081NA13020.081NANA
us-gaap:FiniteLivedIntangibleAssetsNet ▁▁▂▂▂▃▃▃▄▄▅▅▅▆▆▇█2516.7022616.0172781.1162961.7593097.2163280.0963481.1093675.9543865.0033992.2054192.8244400.9964608.5854834.6375066.4545426.5955851.965NA6352.644NANA
us-gaap:OperatingLeaseRightOfUseAsset ▇▇▇▇█████▇▁230.65234.358241.342237.497270.592280.389280.34282.746289.932259.2230.0NANANANANANANANANANA
us-gaap:OtherAssetsNoncurrent ▅▅▅▅▆▇▅▆▅▃▄▆██▁▁▃88.86992.13787.42989.741106.84109.81292.622102.32292.51875.0384.38297.537117.696122.78653.25449.39469.357NA48.545NANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
us-gaap:AccountsPayableCurrent █▇▄▅▅▆▄▇▇▅▆▇▄▂▄▁▁927.254879.032795.576837.506832.011855.053799.618878.518909.12835.481857.502883.408801.448725.625790.22685.026684.577NA697.31NANA
us-gaap:ContractWithCustomerLiabilityCurrent ▄█▁▄▃▄▄▁▆▇▆▅▃▃▁129.979153.032109.798127.501117.925126.026124.777108.07141.546145.019140.053131.133121.913122.395111.197NANANANANANA
us-gaap:LiabilitiesCurrent ▆▆▆▂█▁▂▁▄▁▂▃▅▅▄▇█3095.2313191.2683098.1031961.7073692.9761881.581978.4791879.3472518.941801.822021.1912476.6772956.8562760.4572492.9833483.163650.033NA3704.933NANA
us-gaap:LongTermDebtCurrent ▆▆▅▁█▁▁1296.7451258.0551245.713226.0321859.29179.515170.682NANANA158.625NANANANANANANANANANA
us-gaap:OperatingLeaseLiabilityCurrent ▇▇▇████▇██▁37.76338.37338.29639.43640.4441.57138.83638.10439.12341.1880.0NANANANANANANANANANA
us-gaap:OtherAccruedLiabilitiesCurrent ▁██▃▂▁▂364.26550.263544.302416.009387.212354.882378.954NANANA312.564329.122317.27318.098408.632412.949355.457NA360.677NANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
us-gaap:LongTermDebt █▇█▆▇▄▄▃▂▂▁26989.06826689.53626722.34225702.08326185.68724447.33524420.28524057.28123640.50923261.80122812.6NANANANANANANANANANA
us-gaap:LongTermDebtNoncurrent █▇▇▇▃▂▂▁25692.32325431.48125476.62925476.05124326.39724267.8224249.60323895.58NANA22653.975NANANANANANANANANANA
us-gaap:DeferredIncomeTaxLiabilitiesNet █▇▆▃▂▂▁5107.6325037.6255006.1674850.2414833.3054811.854762.595NANANANA4809.7454716.6814729.5784775.1157194.0657342.729NA7966.815NANA
us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent NANA30.7NANANA57.19NANANA96.79484.75597.51897.908103.16393.84993.921NA84.106NANA
 us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent dei:LegalEntity atus:CSCHoldingsNANA30.7NANANA57.19NANANA96.794NANANANANANANANANANA
us-gaap:MinorityInterest ▂▂▁██████████▇▇▇▇-50.054-53.404-62.10910.7978.8318.6189.2988.2968.1398.0969.2958.5737.3871.5411.5390.6890.889NA0.287NANA
 us-gaap:MinorityInterest dei:LegalEntity atus:CSCHoldings▂▂▁████-50.054-53.404-62.10910.7978.8318.6189.298NANANA9.295NANANA1.539NANANANANANA
 us-gaap:MinorityInterest dei:LegalEntity,us-gaap:StatementEquityComponents atus:CSCHoldings,us-gaap:NoncontrollingInterest█▆▁-50.054-53.404-62.109NANA8.6189.2988.2968.1398.0969.295NANANA1.539NANANA0.287NANA
us-gaap:OtherLiabilitiesNoncurrent ▃▄▃▇▆▆▂██▇▄▃▂▁▁▂▃158.107172.766161.863230.416215.781220.521147.714245.885238.872231.721174.76169.473141.939131.565137.895144.601157.651NA113.485NANA
us-gaap:OperatingLeaseLiabilityNoncurrent NA248.758257.424253.43259.297267.043269.062270.564277.744245.8710.0NANANANANANANANANANA
 us-gaap:OperatingLeaseLiabilityNoncurrent dei:LegalEntity atus:CSCHoldingsNANA257.424NANANA269.062NANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo █▇▇▁54.17652.86252.50844.773NANA47.89451.1150.248NANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree ▄▂▁█46.48545.13944.81449.236NANA48.50946.02645.44NANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour █▃▁▂42.89441.44840.98641.387NANA38.547.49647.024NANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive ▅▂▁█34.96133.45832.98636.925NANA34.05537.37636.869NANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive ▂▁▂█171.23167.7171.238201.425NANA193.018219.862218.129NANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
us-gaap:StockholdersEquity ▁▁▁▃▄▄▅▅▅▅▆▆▆██▆▆-1298.94-1334.169-1141.03734.5461148.8481581.7972269.9642080.9712525.6253002.973670.9413662.43859.8065395.4455494.3013067.7333262.667NA2029.555NANA
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest ▁▁▁▃▄▄▅▅▅▅▆▆▆██▆▆-1348.994-1387.573-1203.139745.3431157.6791590.4152279.2622089.2672533.7643011.0663680.2363670.9733867.1935396.9865495.843068.4223263.556NA2029.842NANA
 us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap:StatementClassOfStock,us-gaap:StatementEquityComponents us-gaap:CommonClassA,us-gaap:CommonStockNA2.8222.9723.8394.0054.2614.5724.5064.6814.9094.9615.1074.9282.472.472.472.47NA0.0NANA
 us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap:StatementClassOfStock,us-gaap:StatementEquityComponents us-gaap:CommonClassB,us-gaap:CommonStockNA1.8581.8591.861.8621.8621.8621.8631.8721.8882.132.1312.4434.9014.9014.9014.901NA0.0NANA
 us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap:StatementEquityComponents us-gaap:AccumulatedOtherComprehensiveIncomeNA10.6213.646-8.806-12.118-13.177-3.25-25.52-14.474-8.212-11.783-2.291-10.438-8.42-10.022-4.13-2.305NA1.979NANA
 us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap:StatementEquityComponents us-gaap:AdditionalPaidInCapitalNANANA405.043817.7961362.8362039.9181709.6852220.3482777.5543423.8033618.7093856.6824682.6464642.1284466.044476.928NA3003.554NANA
 us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap:StatementEquityComponents us-gaap:NoncontrollingInterestNA-53.404-62.10910.7978.8318.6189.2988.2968.1398.0969.2958.5737.3871.5411.5390.6890.889NA0.287NANA
 us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap:StatementEquityComponents us-gaap:ParentNA-1334.169-1141.03734.5461148.8481581.7972269.9642080.9712525.6253002.973670.9413662.43859.8065395.4455494.3013067.7333262.667NA2029.555NANA
 us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap:StatementEquityComponents us-gaap:RetainedEarningsNA-1185.61-985.641496.477501.172389.908390.766390.437313.198226.831251.8338.7446.191713.848854.824-1401.548-1219.327NA-975.978NANA
 us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap:StatementEquityComponents us-gaap:TreasuryStockNA-163.86-163.866-163.867-163.869-163.893-163.9040.00.00.00.0NANANANANANANANANANA
 us-gaap:CommonStockValue us-gaap:StatementClassOfStock us-gaap:CommonClassA▂▂▂▅▅▆▇▆▇▇███▁▁▁▁2.7132.8222.9723.8394.0054.2614.5724.5064.6814.9094.9615.1074.9282.472.472.472.47NA0.0NANA
 us-gaap:CommonStockValue us-gaap:StatementClassOfStock us-gaap:CommonClassB▁▁▁▁▁▁▁▁▁▁▂▂▂████1.8581.8581.8591.861.8621.8621.8621.8631.8721.8882.132.1312.4434.9014.9014.9014.901NA0.0NANA
us-gaap:AdditionalPaidInCapital NANANA405.043817.7961362.8362039.9181709.6852220.3482777.5543423.8033618.7093856.6824682.6464642.1284466.044476.928NA3003.554NANA
us-gaap:RetainedEarningsAccumulatedDeficit ▁▂▂▇▇▇▇▇▆▆▆▅▅██▁▂-1315.08-1185.61-985.641496.477501.172389.908390.766390.437313.198226.831251.8338.7446.191713.848854.824-1401.548-1219.327NA-975.978NANA
 us-gaap:RetainedEarningsAccumulatedDeficit dei:LegalEntity atus:CSCHoldingsNANANA-4.4727.480.013.515NANANA549.691NANANANANANANANANANA
 us-gaap:RetainedEarningsAccumulatedDeficit dei:LegalEntity,us-gaap:StatementEquityComponents atus:CSCHoldings,us-gaap:RetainedEarningsNANANA-4.4727.480.013.51517.58812.584-1.191549.691NANANA2034.572NANANA-685.576NANA
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax ██▇▄▄▃▅▁▃▄▄▅▄▄▄▅▅11.56910.6213.646-8.806-12.118-13.177-3.25-25.52-14.474-8.212-11.783-2.291-10.438-8.42-10.022-4.13-2.305NA1.979NANA
us-gaap:TreasuryStockValue NA163.86163.866163.867163.869163.893163.9040.00.0NA0.0NANANANANANANANANANA
us-gaap:MinorityInterest ▂▂▁██████████▇▇▇▇-50.054-53.404-62.10910.7978.8318.6189.2988.2968.1398.0969.2958.5737.3871.5411.5390.6890.889NA0.287NANA
 us-gaap:MinorityInterest dei:LegalEntity atus:CSCHoldings▂▂▁████-50.054-53.404-62.10910.7978.8318.6189.298NANANA9.295NANANA1.539NANANANANANA
 us-gaap:MinorityInterest dei:LegalEntity,us-gaap:StatementEquityComponents atus:CSCHoldings,us-gaap:NoncontrollingInterest█▆▁-50.054-53.404-62.109NANA8.6189.2988.2968.1398.0969.295NANANA1.539NANANA0.287NANA
us-gaap:StockIssuedDuringPeriodValueNewIssues █▁8.8852.044NANA1.9652.507NA0.4290.244NANANANANANA0.0NANANANANA
us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue ▁█27.38527.964NA34.05733.68327.37NA18.02316.07713.7913.63612.32712.22621.62316.49815.005NANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
us-gaap:NetCashProvidedByUsedInOperatingActivities ▆▆▇▅█▅▆▄▇▄▆▅▆▃▆▄▃▁▅▂729.543749.622791.503659.12935.976593.565720.182541.023788.97503.994738.055611.019728.291430.952784.75516.053456.854244.086653.527357.91NA
us-gaap:NetCashProvidedByUsedInInvestingActivities ▁█▆▆█▇▆▅▄▆▆▆█▇▇▆█▇▇█-666.891-210.648-345.761-348.785-228.137-297.743-322.728-372.86-489.974-339.907-305.961-339.612-211.157-291.627-298.167-328.019-204.856-301.172-245.362-236.583NA
 us-gaap:NetCashProvidedByUsedInInvestingActivities dei:LegalEntity atus:CSCHoldings▁█▆▆█▇▆▆▄▆-666.891-210.648-345.761-352.647-224.475-301.751-322.728-372.86-489.974-339.907NANANANANANANANANANANA
us-gaap:NetCashProvidedByUsedInFinancingActivities ▅▄▃▂▇▄▅▅▅▄▄▅▂▇▃▅▅▅▁█-61.763-597.445-1150.737-1277.8331000.328-752.803129.555-131.401-282.951-339.615-619.115-166.819-1563.541958.479-808.338-218.011-114.95942.267-1873.991248.436NA
 us-gaap:NetCashProvidedByUsedInFinancingActivities dei:LegalEntity atus:CSCHoldings▅▃▁▁█▃▅▄▄▄-32.873-596.658-1148.257-1277.5421001.557-749.18104.414-150.2-304.784-347.318NANANANANANANANANANANA
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect ▄▄▂▁█▂▅▄▄▃▃▄▁▆0.748-57.851-705.639-968.0811707.651-457.405526.80836.37715.71-175.773-187.423105.068-1046.5111097.804NANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
us-gaap:DeferredIncomeTaxExpenseBenefit ██████████████▁▇▇█▇▇69.60429.1658.52915.87820.8830.225-40.76336.0939.522-19.918-82.00294.679-14.447-65.833-2412.536-150.218-256.206-52.184-158.521-119.537NA
us-gaap:DepreciationDepletionAndAmortization ▄▄▄▄▅▅▅▅▅▅▅▅▆▆██▇▆▆▆▁444.327434.857511.754502.248521.794547.569567.459565.637568.62561.428555.054536.053648.527642.705791.699823.265706.787608.724614.377670.929214.1
us-gaap:IncreaseDecreaseInAccountsPayable ▂▃▁▄▄▅▃▄▄▅▂▅▅▄▅▄▂█▃▅-87.771-29.696-119.267-9.377-13.35723.613-60.1258.469-15.3433.889-73.04236.04838.15211.29718.439-16.692-80.658147.999-49.28646.071NA
 us-gaap:IncreaseDecreaseInAccountsPayable dei:LegalEntity atus:CSCHoldings▆▇▁▇▇█▆█▇█-87.615-29.611-334.934-9.377-13.35723.613-60.1258.669-15.5433.889NANANANANANANANANANANA
us-gaap:IncreaseDecreaseInAccountsReceivable ▆▁▇▅▂▄▆▇▅▂▆█▇▃▆▆▆▂▅▄42.215-55.29355.16623.103-31.984.45844.86948.65326.474-28.27832.63374.22262.431-25.20744.1937.48742.713-34.70719.1098.321NA
us-gaap:NetCashProvidedByUsedInOperatingActivities ▆▆▇▅█▅▆▄▇▄▆▅▆▃▆▄▃▁▅▂729.543749.622791.503659.12935.976593.565720.182541.023788.97503.994738.055611.019728.291430.952784.75516.053456.854244.086653.527357.91NA
us-gaap:NetIncomeLoss ▃▃▃▂▃▂▂▂▂▂▃▂▂▂█▂▁▂▂▂▁197.66274.136330.472-4.695111.264-0.8580.32977.23986.367-24.999213.08632.553-97.855-128.9512253.832-182.221-475.155-76.425-236.708-172.809-281.765
us-gaap:ProfitLoss ▃▃▃▂▃▂▂▂▂▂▃▂▂▂█▂▁▂▂▂▁200.934278.539336.269-2.729111.477-1.5381.33177.39686.41-25.198213.80833.739-98.004-128.9492254.682-182.086-474.79-76.188-236.049-172.553-282.129
us-gaap:ShareBasedCompensation ▅▅▅▆▆▅█▃▃▃▃▃▃▄▃▃▃▂▃▁▁27.64628.28129.97734.05733.68327.3751.18718.02416.07713.7913.63612.32712.22621.62316.49815.00518.0797.84812.6981.670.0
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
us-gaap:NetCashProvidedByUsedInInvestingActivities ▁█▆▆█▇▆▅▄▆▆▆█▇▇▆█▇▇█-666.891-210.648-345.761-348.785-228.137-297.743-322.728-372.86-489.974-339.907-305.961-339.612-211.157-291.627-298.167-328.019-204.856-301.172-245.362-236.583NA
 us-gaap:NetCashProvidedByUsedInInvestingActivities dei:LegalEntity atus:CSCHoldings▁█▆▆█▇▆▆▄▆-666.891-210.648-345.761-352.647-224.475-301.751-322.728-372.86-489.974-339.907NANANANANANANANANANANA
us-gaap:PaymentsToAcquirePropertyPlantAndEquipment ▇▄▇▄▅▆▇█▇▇▇▇▅▅▅▆▄▅▅▅▁323.104212.791344.578201.572228.723299.082322.795375.302316.867340.386320.765334.527240.682257.615228.066303.636202.235257.427247.815248.15663.365
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
us-gaap:NetCashProvidedByUsedInFinancingActivities ▅▄▃▂▇▄▅▅▅▄▄▅▂▇▃▅▅▅▁█-61.763-597.445-1150.737-1277.8331000.328-752.803129.555-131.401-282.951-339.615-619.115-166.819-1563.541958.479-808.338-218.011-114.95942.267-1873.991248.436NA
 us-gaap:NetCashProvidedByUsedInFinancingActivities dei:LegalEntity atus:CSCHoldings▅▃▁▁█▃▅▄▄▄-32.873-596.658-1148.257-1277.5421001.557-749.18104.414-150.2-304.784-347.318NANANANANANANANANANANA
 us-gaap:PaymentsOfDividends dei:LegalEntity atus:CSCHoldings▁▂█▂▂▂▂▂▂▂184.478501.02990.575431.1652.383720.35535.378514.605635.027594.462NANANANANANANANANANANA
us-gaap:PaymentsForRepurchaseOfCommonStock ▂▂█▂▃▃▁▂▂▂▂▂▁▁221.873503.6453001.69433.454655.23726.0050.0486.92613.194586.759259.201240.7990.00.0NANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30

Common Stock Value

us-gaap:CommonStockValue us-gaap:StatementClassOfStock

us-gaap:CommonStockValue

us-gaap:CommonClassA


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value2713000.02822000.02972000.03839000.04005000.04261000.04572000.04506000.04681000.04909000.04961000.05107000.04928000.02470000.02470000.02470000.02470000.00
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonClassA0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonClassB


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value1858000.01858000.01859000.01860000.01862000.01862000.01862000.01863000.01872000.01888000.02130000.02131000.02443000.04901000.04901000.04901000.04901000.00
Percentage of CommonStockValue68.565.862.648.546.543.740.741.340.038.542.941.749.6198.4198.4198.4198.40.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonClassB0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302018-09-302018-06-302017-12-312017-09-30
Value463475571589621646668732737696737
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302017-09-30
Value456469571587621643668695732737737
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount


Antidilutive
Period End2021-06-302021-03-312020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value0.910.49528222.0181.292115.8415.5125.165746
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareBasic


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-09-30
Value0.430.580.61-0.010.19000.120.13-0.040.290.04-0.133.28-0.26
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareDiluted


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302018-12-312018-09-302018-06-302017-12-312017-09-30
Value0.430.580.6-0.010.1900.120.130.290.04-0.133.28-0.26
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0

Allocated Share Based Compensation Expense

us-gaap:AllocatedShareBasedCompensationExpense

us-gaap:AllocatedShareBasedCompensationExpense


Allocated
Period End2021-06-302021-03-312020-06-302020-03-312017-12-312017-09-302017-06-30
Value27283427161417
Percentage of AllocatedShareBasedCompensationExpense100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromRelatedParties910.9830.31015.6801.20.01465.36898.8

us-gaap:AllocatedShareBasedCompensationExpense us-gaap:AwardType, us-gaap:PlanName

us-gaap:EmployeeStockOption, atus:A2017LTIP


Allocated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value242425272520208.787.8177.3175.3194.8174.2334.122
Percentage of AllocatedShareBasedCompensationExpense88.585.70.00.073.872.80.00.00.00.00.00.00.00.0
Percentage of RevenueFromRelatedParties806.4711.20.0659.0749.5583.40.012542.91576.01236.00.0883.9582.33297.6
Percentage of RevenueFromRelatedParties us-gaap:EmployeeStockOption atus:A2017LTIP0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:PerformanceShares, atus:A2017LTIP


Allocated
Period End2021-06-302021-03-312020-09-302020-06-302020-03-31
Value2.8682.9824.9574.4193.901
Percentage of AllocatedShareBasedCompensationExpense10.410.50.012.914.0
Percentage of RevenueFromRelatedParties94.587.6118.4130.8111.8
Percentage of RevenueFromRelatedParties us-gaap:PerformanceShares atus:A2017LTIP0.00.00.00.00.0

us-gaap:RestrictedStock, atus:A2019LTIP


Allocated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value0.2610.3170.4130.6520.6360.576
Percentage of AllocatedShareBasedCompensationExpense0.91.10.00.01.92.1
Percentage of RevenueFromRelatedParties8.69.30.015.618.816.5
Percentage of RevenueFromRelatedParties us-gaap:RestrictedStock atus:A2019LTIP0.00.00.00.00.00.0

us-gaap:RestrictedStockUnitsRSU, atus:CarryUnitPlan


Allocated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0.0440.7591.4811.4983.9373.12337.2147.8616.4738.3177.517.99317
Percentage of AllocatedShareBasedCompensationExpense0.22.70.00.011.511.20.00.00.00.00.00.00.00.0
Percentage of RevenueFromRelatedParties1.422.30.035.8116.589.40.010305.71584.91093.40.01378.01099.414000.8
Percentage of RevenueFromRelatedParties us-gaap:RestrictedStockUnitsRSU atus:CarryUnitPlan0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Comprehensive Income Net Of Tax

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTax


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value198281342-1.385112-10.785226680-21.42820340-97.353-125.1862247-184.047-479.439-76.425-237.13-169.819-282.354
Percentage of ComprehensiveIncomeNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromRelatedParties6543.98253.40.0-33.13324.1-309.20.094561.416150.2-3619.60.07343.1-13391.1-100148.80.0-18666.0-189501.6-54202.10.0-23586.00.0

us-gaap:ComprehensiveIncomeNetOfTax dei:LegalEntity

atus:CSCHoldings


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value200281341-1.531140.875428497-4.094
Percentage of ComprehensiveIncomeNetOfTax101.2100.099.6110.5102.0-8.1187.1127.4122.119.1
Percentage of RevenueFromRelatedParties6619.68253.40.0-36.53389.125.10.0120448.619725.2-691.6
Percentage of RevenueFromRelatedParties atus:CSCHoldings0.00.00.00.00.00.00.00.00.00.0

Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest dei:LegalEntity

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest

atus:CSCHoldings


Comprehensive
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value4403000.05797000.01966000.0213000.0-680000.01002000.0157000.043000.0-199000.0
Percentage of ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromRelatedParties129.30.046.96.3-19.50.0224.38.7-33.6
Percentage of RevenueFromRelatedParties atus:CSCHoldings0.00.00.00.00.00.00.00.00.0

Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value2012853480.581112-11.465236680-21.62720441-97.502-125.1842248-183.912-479.074-76.188-236.471-169.563-282.718
Percentage of ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromRelatedParties6651.88382.70.013.93330.5-328.70.094785.716158.9-3653.20.07560.7-13411.6-100147.20.0-18652.3-189357.3-54034.00.0-23550.40.0

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest dei:LegalEntity

atus:CSCHoldings


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value2042853470.4361140.195438497-4.293
Percentage of ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest101.1100.099.675.0102.0-1.7183.4127.3122.119.9
Percentage of RevenueFromRelatedParties6727.58382.70.010.43395.45.60.0120672.919733.9-725.2
Percentage of RevenueFromRelatedParties atus:CSCHoldings0.00.00.00.00.00.00.00.00.00.0

Cost Of Goods And Services Sold

us-gaap:CostOfGoodsAndServicesSold

us-gaap:CostOfGoodsAndServicesSold


Cost
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
Value849851831783860864847820818812800790795787
Percentage of CostOfGoodsAndServicesSold100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromRelatedParties28002.425010.70.018718.625477.224785.40.01172708.6165119.8137328.50.0145051.9109371.0629888.8

us-gaap:CostOfGoodsAndServicesSold dei:LegalEntity

atus:CSCHoldings


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value849851831783860864847820818812
Percentage of CostOfGoodsAndServicesSold100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromRelatedParties28002.425010.70.018718.625477.224785.40.01172708.6165119.8137328.5
Percentage of RevenueFromRelatedParties atus:CSCHoldings0.00.00.00.00.00.00.00.00.00.0

Costs And Expenses

us-gaap:CostsAndExpenses

us-gaap:CostsAndExpenses


Costs
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value18891870192618841966200120471967196819541926191220292016213921922071205720882117778573
Percentage of CostsAndExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromRelatedParties62248.554913.80.045002.258190.957387.80.02810210.0396882.7330082.60.0350870.3279105.11613340.80.0222343.9818798.01459178.70.0294089.20.00.0

us-gaap:CostsAndExpenses dei:LegalEntity

atus:CSCHoldings


Costs
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value18891870192618841966200120471967196819541926191220292016
Percentage of CostsAndExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromRelatedParties62248.554913.80.045002.258190.957387.80.02810210.0396882.7330082.60.0350870.3279105.11613340.8
Percentage of RevenueFromRelatedParties atus:CSCHoldings0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Gain Loss On Investments

us-gaap:GainLossOnInvestments

us-gaap:GainLossOnInvestments


Gain
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value12573263312197-454.896-4.72512098254-461.146-111.684-58.42-252.57667-18.957131582458
Percentage of GainLossOnInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromRelatedParties4118.62156.60.07466.95847.7-13041.70.0171824.319918.143027.90.0-20492.5-8035.8-202060.80.0-1916.822581.093374.50.03449.00.0

Gains Losses On Extinguishment Of Debt

us-gaap:GainsLossesOnExtinguishmentOfDebt

us-gaap:GainsLossesOnExtinguishmentOfDebt


Gains
Period End2021-06-302020-12-312020-09-302020-07-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-152017-03-312016-12-312016-09-302016-06-30
Value-51.7120.0-250.489620.00.0-84.207-0.503-1.194-157.902-7.1880.0-36.911-4.7050.0-38.858-561.382-18.9760.0-107.7010.0-19.948
Percentage of GainsLossesOnExtinguishmentOfDebt100.00.0100.0100.00.00.0100.0100.0100.0100.0100.00.0100.0100.00.0100.0100.00.0100.0100.00.0100.0
Percentage of RevenueFromRelatedParties-1703.90.0-5981.10.00.00.00.0-718.6-240.7-26672.60.00.0-5077.2-3764.00.0-3941.0-221890.10.00.00.00.00.0

us-gaap:GainsLossesOnExtinguishmentOfDebt dei:LegalEntity

atus:CSCHoldings


Gains
Period End2021-06-302020-12-312020-09-302020-07-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-51.7120.0-250.489620.00.0-69.0340.0-1.194-157.902
Percentage of GainsLossesOnExtinguishmentOfDebt100.00.0100.0100.00.00.082.0-0.0100.0100.0
Percentage of RevenueFromRelatedParties-1703.90.0-5981.10.00.00.00.00.0-240.7-26672.6
Percentage of RevenueFromRelatedParties atus:CSCHoldings0.00.00.00.00.00.00.00.00.00.0

us-gaap:GainsLossesOnExtinguishmentOfDebt us-gaap:DebtInstrument

atus:CSCHoldings10.875NotesdueOctober152025


Gains
Period End2020-12-31
Value0.0
Percentage of GainsLossesOnExtinguishmentOfDebt0.0
Percentage of RevenueFromRelatedParties0.0
Percentage of RevenueFromRelatedParties atus:CSCHoldings10.875NotesdueOctober1520250.0

atus:CSCHoldings6.625NotesdueOctober152025


Gains
Period End2020-12-31
Value0.0
Percentage of GainsLossesOnExtinguishmentOfDebt0.0
Percentage of RevenueFromRelatedParties0.0
Percentage of RevenueFromRelatedParties atus:CSCHoldings6.625NotesdueOctober1520250.0

atus:CSCHoldings7.750NotesdueJuly152025


Gains
Period End2020-12-31
Value0.0
Percentage of GainsLossesOnExtinguishmentOfDebt0.0
Percentage of RevenueFromRelatedParties0.0
Percentage of RevenueFromRelatedParties atus:CSCHoldings7.750NotesdueJuly1520250.0

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

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value2623903663017015-7.924115127-47.784145129-103.594-189.652-168.621-316.774-723.858-122.096-394.383-290.783-190.836
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromRelatedParties8657.511466.40.0727.25040.0444.30.0164667.125719.8-8071.60.023799.4-14249.5-151721.60.0-32127.2-286109.9-86592.90.0-40386.50.0

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest dei:LegalEntity

atus:CSCHoldings


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value262390366301701515140151-23.54
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest100.0100.0100.099.3100.097.8-194.6121.6119.149.3
Percentage of RevenueFromRelatedParties8657.511466.40.0722.55040.0434.40.0200300.030639.1-3976.4
Percentage of RevenueFromRelatedParties atus:CSCHoldings0.00.00.00.00.00.00.00.00.00.0

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxExpenseBenefit


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value6111230335817-9.2553741-22.586-68.3395-5.59-60.703-2423.303-134.688-249.068-45.908-158.334-118.2391
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromRelatedParties2036.93288.50.0792.41740.9488.40.054101.48298.4-3815.20.017608.8-768.9-48562.40.0-13660.0-98445.8-32558.90.0-16420.80.0

us-gaap:IncomeTaxExpenseBenefit dei:LegalEntity

atus:CSCHoldings


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value591123233565.029-5.6024447-15.676
Percentage of IncomeTaxExpenseBenefit96.3100.0104.499.896.329.560.5118.0116.269.4
Percentage of RevenueFromRelatedParties1961.23288.50.0791.11675.9144.20.063847.19642.7-2648.0
Percentage of RevenueFromRelatedParties atus:CSCHoldings0.00.00.00.00.00.00.00.00.00.0

Income Taxes Paid Net

us-gaap:IncomeTaxesPaidNet

us-gaap:IncomeTaxesPaidNet


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value979.7278.11243271.1953.8060.216.1370.111.5193.2089.967-1.0272.616.954171.553-3.8040.124
Percentage of IncomeTaxesPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromRelatedParties3205.9285.60.01048.2805.334.30.0300.01237.318.60.0588.61371.0-821.60.0705.37070.81101.40.017.2

us-gaap:IncomeTaxesPaidNet dei:LegalEntity

atus:CSCHoldings


Income
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value9.7278.11243271.1954.0060.016.1370.11
Percentage of IncomeTaxesPaidNet100.0100.0100.0100.0100.0105.34.8100.0100.0
Percentage of RevenueFromRelatedParties285.60.01048.2805.334.30.014.31237.318.6
Percentage of RevenueFromRelatedParties atus:CSCHoldings0.00.00.00.00.00.00.00.00.0

Interest Expense

us-gaap:InterestExpense

us-gaap:InterestExpense


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value319316313322351365378388381388398389390377370379420433440446293
Percentage of InterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromRelatedParties10525.09287.70.07703.410388.410470.50.0555428.676858.565588.30.071485.153719.8301806.40.038444.6166154.9307300.70.061978.10.0

us-gaap:InterestExpense dei:LegalEntity

atus:CSCHoldings


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value319316313322351365370364356364
Percentage of InterestExpense100.0100.0100.0100.0100.0100.097.893.793.693.8
Percentage of RevenueFromRelatedParties10525.09287.70.07703.410388.410470.50.0520511.471939.161493.1
Percentage of RevenueFromRelatedParties atus:CSCHoldings0.00.00.00.00.00.00.00.00.00.0

Interest Paid Net

us-gaap:InterestPaidNet

us-gaap:InterestPaidNet


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value275310263470198474265406288475307441267464283481475524
Percentage of InterestPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromRelatedParties9070.89127.40.011229.85888.013597.10.0581380.058207.780254.90.081086.836790.6371810.40.048791.8187909.9372244.0

us-gaap:InterestPaidNet dei:LegalEntity

atus:CSCHoldings


Interest
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value310263470198474238388268455
Percentage of InterestPaidNet100.0100.0100.0100.0100.089.895.492.996.0
Percentage of RevenueFromRelatedParties9127.40.011229.85888.013597.10.0554458.654097.877022.6
Percentage of RevenueFromRelatedParties atus:CSCHoldings0.00.00.00.00.00.00.00.00.0

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value197274330-4.695111-0.8580.3297786-24.99921332-97.855-128.9512253-182.221-475.155-76.425-236.708-172.809-281.765-140.748
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromRelatedParties6512.78048.60.0-112.13292.8-24.60.0110341.417412.7-4222.80.05973.0-13460.1-103160.80.0-18480.8-187808.3-54202.10.0-24001.20.00.0

us-gaap:NetIncomeLoss dei:LegalEntity

atus:CSCHoldings


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value199274-4.84113102095104-7.6652418521-89.97
Percentage of NetIncomeLoss101.2100.0103.1102.0-1259.06085.1123.5120.530.7113.2262.8-22.269.8
Percentage of RevenueFromRelatedParties6588.48048.6-115.63357.8309.70.0136228.620987.7-1294.80.015699.32981.6-71976.0
Percentage of RevenueFromRelatedParties atus:CSCHoldings0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NetIncomeLoss dei:LegalEntity, us-gaap:StatementEquityComponents

atus:CSCHoldings, us-gaap:AdditionalPaidInCapital


Net
Period End2021-06-302021-03-312020-06-302020-03-31
Value19927411310
Percentage of NetIncomeLoss101.2100.0102.0-1259.0
Percentage of RevenueFromRelatedParties6588.48048.63357.8309.7
Percentage of RevenueFromRelatedParties atus:CSCHoldings us-gaap:AdditionalPaidInCapital0.00.00.00.0

atus:CSCHoldings, us-gaap:Parent


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value199274-4.841131095104-7.665
Percentage of NetIncomeLoss101.2100.0103.1102.0-1259.0123.5120.530.7
Percentage of RevenueFromRelatedParties6588.48048.6-115.63357.8309.7136228.620987.7-1294.8
Percentage of RevenueFromRelatedParties atus:CSCHoldings us-gaap:Parent0.00.00.00.00.00.00.00.0

atus:CSCHoldings, us-gaap:RetainedEarnings


Net
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value-4.841131095104-7.665
Percentage of NetIncomeLoss103.1102.0-1259.0123.5120.530.7
Percentage of RevenueFromRelatedParties-115.63357.8309.7136228.620987.7-1294.8
Percentage of RevenueFromRelatedParties atus:CSCHoldings us-gaap:RetainedEarnings0.00.00.00.00.00.0

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:Parent


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value197274-4.695111-0.8587786-24.99921332-97.855-128.9512253-182.221
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromRelatedParties6512.78048.6-112.13292.8-24.6110341.417412.7-4222.80.05973.0-13460.1-103160.80.0-18480.8
Percentage of RevenueFromRelatedParties us-gaap:Parent0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Net
Period End2021-06-302021-03-312020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value197274111-0.8587786-24.99921332-97.855-128.9512253-182.221
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromRelatedParties6512.78048.63292.8-24.6110341.417412.7-4222.80.05973.0-13460.1-103160.80.0-18480.8
Percentage of RevenueFromRelatedParties us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.0

Net Income Loss Attributable To Noncontrolling Interest

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value3274000.04403000.05797000.01966000.0213000.0-680000.01002000.0157000.043000.0-199000.0722000.01186000.0-149000.02000.0850000.0135000.0365000.0237000.0659000.0256000.0-364000.00
Percentage of NetIncomeLossAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of RevenueFromRelatedParties107.9129.30.046.96.3-19.50.0224.38.7-33.60.0217.6-20.51.60.013.7144.3168.10.035.60.00.0

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest dei:LegalEntity

atus:CSCHoldings


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value3274000.04403000.05797000.01966000.0213000.0-680000.01002000.0157000.043000.0-199000.0722000.01186000.0-149000.02000.0
Percentage of NetIncomeLossAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromRelatedParties107.9129.30.046.96.3-19.50.0224.38.7-33.60.0217.6-20.51.6
Percentage of RevenueFromRelatedParties atus:CSCHoldings0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest dei:LegalEntity, us-gaap:StatementEquityComponents

atus:CSCHoldings, us-gaap:NoncontrollingInterest


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value3274000.04403000.01966000.0213000.0-680000.0157000.043000.0-199000.0
Percentage of NetIncomeLossAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromRelatedParties107.9129.346.96.3-19.5224.38.7-33.6
Percentage of RevenueFromRelatedParties atus:CSCHoldings us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.0

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value3274000.04403000.01966000.0213000.0-680000.0157000.043000.0-199000.0722000.01186000.0-149000.02000.0850000.0135000.0
Percentage of NetIncomeLossAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromRelatedParties107.9129.346.96.3-19.5224.38.7-33.60.0217.6-20.51.60.013.7
Percentage of RevenueFromRelatedParties us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Nonoperating Income Expense

us-gaap:NonoperatingIncomeExpense

us-gaap:NonoperatingIncomeExpense


Nonoperating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value-364010000.0-217910000.0-241750000.0-518840000.0-338400000.0-433070000.0-435200000.0-356250000.0-354970000.0-490260000.0-383250000.0-375850000.0-438650000.0-502690000.0-394120000.0-451640000.0-980640000.0-372210000.0-611610000.0-433560000.0-236240000.0
Percentage of NonoperatingIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromRelatedParties-11993.8-6397.90.0-12388.6-10014.9-12416.10.0-508925.7-71567.1-82814.50.0-68963.5-60337.4-402152.00.0-45805.1-387604.7-263975.90.0-60216.90.0

us-gaap:NonoperatingIncomeExpense dei:LegalEntity

atus:CSCHoldings


Nonoperating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-364010000.0-217910000.0-241750000.0-519040000.0-338400000.0-433420000.0-411860000.0-331300000.0-330570000.0-466020000.0
Percentage of NonoperatingIncomeExpense100.0100.0100.0100.0100.0100.194.693.093.195.1
Percentage of RevenueFromRelatedParties-11993.8-6397.90.0-12393.4-10014.9-12426.00.0-473292.9-66647.8-78719.3
Percentage of RevenueFromRelatedParties atus:CSCHoldings0.00.00.00.00.00.00.00.00.00.0

Operating Income Loss

us-gaap:OperatingIncomeLoss

us-gaap:OperatingIncomeLoss


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value6266086085495084484274714824425285053353132251342562482171424554
Percentage of OperatingIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromRelatedParties20651.217864.30.013115.915055.012860.40.0673592.997286.974742.90.092762.946087.9250430.40.013677.9101494.9176052.50.019830.40.00.0

us-gaap:OperatingIncomeLoss dei:LegalEntity

atus:CSCHoldings


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value626608608549508448427471482442528505335313
Percentage of OperatingIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromRelatedParties20651.217864.30.013115.915055.012860.40.0673592.997286.974742.90.092762.946087.9250430.4
Percentage of RevenueFromRelatedParties atus:CSCHoldings0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

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

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value-140000.0619000.0-644000.0-582000.0-517000.0-424000.0-460000.0-280000.0-243000.0-181000.01692000.0-410000.0576000.00000
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0
Percentage of RevenueFromRelatedParties-4.618.20.0-13.9-15.3-12.20.0-400.0-49.0-30.60.0-75.279.20.00.00.00.0

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax dei:LegalEntity

atus:CSCHoldings


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-140000.0619000.0-644000.0-582000.0-517000.0-424000.0-460000.0-280000.0-243000.0-181000.0
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromRelatedParties-4.618.20.0-13.9-15.3-12.20.0-400.0-49.0-30.6
Percentage of RevenueFromRelatedParties atus:CSCHoldings0.00.00.00.00.00.00.00.00.00.0

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax dei:LegalEntity, us-gaap:StatementEquityComponents

atus:CSCHoldings, us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value619000.0-582000.0-517000.0-424000.0-280000.0-243000.0-181000.0
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromRelatedParties18.2-13.9-15.3-12.2-400.0-49.0-30.6
Percentage of RevenueFromRelatedParties atus:CSCHoldings us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.0

atus:CSCHoldings, us-gaap:Parent


Other
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value619000.0-582000.0-517000.0-424000.0-280000.0-243000.0-181000.0
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromRelatedParties18.2-13.9-15.3-12.2-400.0-49.0-30.6
Percentage of RevenueFromRelatedParties atus:CSCHoldings us-gaap:Parent0.00.00.00.00.00.00.0

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value-140000.0619000.0-582000.0-517000.0-424000.0-280000.0-243000.0-181000.0
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromRelatedParties-4.618.2-13.9-15.3-12.2-400.0-49.0-30.6
Percentage of RevenueFromRelatedParties us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.0

us-gaap:Parent


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value-140000.0619000.0-582000.0-517000.0-424000.0-280000.0-243000.0-181000.0
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromRelatedParties-4.618.2-13.9-15.3-12.2-400.0-49.0-30.6
Percentage of RevenueFromRelatedParties us-gaap:Parent0.00.00.00.00.00.00.00.0

Other Comprehensive Income Loss Net Of Tax

us-gaap:OtherComprehensiveIncomeLossNetOfTax

us-gaap:OtherComprehensiveIncomeLossNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value0.9486.975123.311.059-9.92722-11.046-6.2623.571-9.4927.4670.5023.765-5.892-1.826-4.2840.0-0.4222.99-0.589
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0
Percentage of RevenueFromRelatedParties31.2204.80.079.031.3-284.60.0-15780.0-1262.5603.20.01370.169.13012.00.0-185.2-1693.30.00.0415.30.0

us-gaap:OtherComprehensiveIncomeLossNetOfTax dei:LegalEntity

atus:CSCHoldings


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value0.9486.975123.311.059-9.92722-11.046-6.2623.571
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromRelatedParties31.2204.80.079.031.3-284.60.0-15780.0-1262.5603.2
Percentage of RevenueFromRelatedParties atus:CSCHoldings0.00.00.00.00.00.00.00.00.00.0

Other Nonoperating Income Expense

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:OtherNonoperatingIncomeExpense


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value2467000.02859000.02300000.01685000.0669000.0923000.01117000.0-226000.0212000.080000.0-11000.0-186000.0-629000.0-11658000.0-2620000.0-65000.01121000.0-2100000.01781000.02531000.06000.0
Percentage of OtherNonoperatingIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromRelatedParties81.383.90.040.219.826.50.0-322.942.713.50.0-34.1-86.5-9326.40.0-6.6443.1-1489.40.0351.50.0

us-gaap:OtherNonoperatingIncomeExpense dei:LegalEntity

atus:CSCHoldings


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value2467000.02859000.02300000.01685000.0669000.0923000.01117000.0-228000.0212000.080000.0
Percentage of OtherNonoperatingIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.9100.0100.0
Percentage of RevenueFromRelatedParties81.383.90.040.219.826.50.0-325.742.713.5
Percentage of RevenueFromRelatedParties atus:CSCHoldings0.00.00.00.00.00.00.00.00.00.0

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
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
Value200278336-2.729111-1.5381.3317786-25.19821333-98.004-128.9492254-182.086-474.79-76.188-236.049-172.553-282.129-140.748
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromRelatedParties6620.68177.90.0-65.23299.1-44.10.0110565.717421.4-4256.40.06190.6-13480.6-103159.20.0-18467.1-187664.0-54034.00.0-23965.70.00.0

us-gaap:ProfitLoss dei:LegalEntity

atus:CSCHoldings


Profit
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
Value203278334-2.874113102195104-7.8642428621-89.968
Percentage of ProfitLoss101.1100.099.6105.3102.0-658.11579.4123.4120.531.2113.2257.1-22.069.8
Percentage of RevenueFromRelatedParties6696.28177.90.0-68.63364.1290.20.0136452.920996.4-1328.40.015916.92961.1-71974.4
Percentage of RevenueFromRelatedParties atus:CSCHoldings0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Revenue From Contract With Customer Including Assessed Tax

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax us-gaap:ProductOrService

us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax

us-gaap:Franchise


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value6566636365646263636466636363
Percentage of RevenueFromContractWithCustomerIncludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromRelatedParties2169.31939.40.01510.61931.91861.00.090770.012887.110850.70.011688.68715.551064.0
Percentage of RevenueFromRelatedParties us-gaap:Franchise0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Revenues

us-gaap:Revenues

us-gaap:Revenues


Revenues
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
Value25162478253524332474245024742438245123962454241723642329235923272328230223052260823627
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromRelatedParties82899.872778.10.058118.173245.970248.20.03483802.9494169.6404825.50.0443633.2325193.01863771.20.0236021.8920292.91632807.80.0313919.60.00.0

us-gaap:Revenues dei:LegalEntity

atus:CSCHoldings


Revenuesdei:
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
Value25162478253524332474245024742438245123962454241723642329
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromRelatedParties82899.872778.10.058118.173245.970248.20.03483802.9494169.6404825.50.0443633.2325193.01863771.2
Percentage of RevenueFromRelatedParties atus:CSCHoldings0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Revenues dei:LegalEntity, us-gaap:ProductOrService

atus:CSCHoldings, atus:AdvertisingandNews


Revenuesdei:
Period End2020-12-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value1921481181149416312311188
Percentage of Revenues7.66.04.84.74.06.75.14.73.8
Percentage of RevenueFromRelatedParties0.00.0168667.123074.616003.00.022736.315315.370989.6
Percentage of RevenueFromRelatedParties atus:CSCHoldings atus:AdvertisingandNews0.00.00.00.00.00.00.00.00.0

atus:CSCHoldings, atus:Broadband


Revenuesdei:
Period End2020-12-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value942826814806775743729712701
Percentage of Revenues37.233.433.432.932.430.330.230.130.1
Percentage of RevenueFromRelatedParties0.00.01163325.7162550.4131009.00.0133927.997964.5561296.8
Percentage of RevenueFromRelatedParties atus:CSCHoldings atus:Broadband0.00.00.00.00.00.00.00.00.0

atus:CSCHoldings, atus:BusinessServicesandWholesale


Revenuesdei:
Period End2020-12-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value362362357357350348344337333
Percentage of Revenues14.314.614.714.614.614.214.214.314.3
Percentage of RevenueFromRelatedParties0.00.0510897.172138.359238.00.063154.746408.3266472.0
Percentage of RevenueFromRelatedParties atus:CSCHoldings atus:BusinessServicesandWholesale0.00.00.00.00.00.00.00.00.0

atus:CSCHoldings, atus:Mobile


Revenuesdei:
Period End2020-12-312019-12-312019-09-302019-06-302019-03-31
Value20183.1740.00.0
Percentage of Revenues0.80.70.10.00.0
Percentage of RevenueFromRelatedParties0.00.04534.30.00.0
Percentage of RevenueFromRelatedParties atus:CSCHoldings atus:Mobile0.00.00.00.00.0

atus:CSCHoldings, atus:OtherProductsandServices


Revenuesdei:
Period End2020-12-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value3.4474.2214.0763.9173.7734.23.775.3186.52
Percentage of Revenues0.10.20.20.20.20.20.20.20.3
Percentage of RevenueFromRelatedParties0.00.05822.9789.7637.30.0691.7731.55216.0
Percentage of RevenueFromRelatedParties atus:CSCHoldings atus:OtherProductsandServices0.00.00.00.00.00.00.00.00.0

atus:CSCHoldings, atus:PayTV


Revenuesdei:
Period End2020-12-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value904968993101810171033105410341033
Percentage of Revenues35.739.240.741.642.442.143.643.844.4
Percentage of RevenueFromRelatedParties0.00.01418797.1205327.8171846.30.0193516.9142283.9826966.4
Percentage of RevenueFromRelatedParties atus:CSCHoldings atus:PayTV0.00.00.00.00.00.00.00.00.0

atus:CSCHoldings, atus:Telephony


Revenuesdei:
Period End2020-12-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value110145148150154162161163166
Percentage of Revenues4.45.96.16.16.46.66.76.97.1
Percentage of RevenueFromRelatedParties0.00.0211758.630288.726091.90.029605.722489.5132830.4
Percentage of RevenueFromRelatedParties atus:CSCHoldings atus:Telephony0.00.00.00.00.00.00.00.00.0

us-gaap:Revenues us-gaap:ProductOrService

atus:AdvertisingandNews


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value131105192124961051481181149416312311188
Percentage of Revenues5.24.27.65.13.94.36.04.84.74.06.75.14.73.8
Percentage of RevenueFromRelatedParties4341.63084.90.02965.12859.83025.80.0168667.123074.616003.00.022736.315315.370989.6
Percentage of RevenueFromRelatedParties atus:AdvertisingandNews0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

atus:Broadband


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value992970942941920885826814806775743729712701681646629625632578243
Percentage of Revenues39.439.237.238.737.236.133.433.432.932.430.330.230.130.128.927.827.027.227.425.629.6
Percentage of RevenueFromRelatedParties32690.428495.90.022474.627237.725387.90.01163325.7162550.4131009.00.0133927.997964.5561296.80.065526.8248781.0443913.50.080361.80.0
Percentage of RevenueFromRelatedParties atus:Broadband0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

atus:BusinessServicesandWholesale


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value372367362362365364362357357350348344337333330324323319314309111
Percentage of Revenues14.814.814.314.914.814.914.614.714.614.614.214.214.314.314.014.013.913.913.613.713.5
Percentage of RevenueFromRelatedParties12257.310781.40.08648.910818.710451.00.0510897.172138.359238.00.063154.746408.3266472.00.032937.1128039.5226539.00.042967.50.0
Percentage of RevenueFromRelatedParties atus:BusinessServicesandWholesale0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

atus:Mobile


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value201920191918183.1740.00.00.00.0
Percentage of Revenues0.80.80.80.80.80.70.70.10.00.00.00.0
Percentage of RevenueFromRelatedParties680.9564.70.0470.9587.9526.30.04534.30.00.00.00.0
Percentage of RevenueFromRelatedParties atus:Mobile0.00.00.00.00.00.00.00.00.00.00.00.0

atus:OtherProductsandServices


Revenuesus-gaap:
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value3.6192.7074.214.2214.0763.9173.7735.3694.6176.7627.6757.60812138.7216.4821511
Percentage of Revenues0.10.10.20.20.20.20.20.20.20.30.30.30.50.60.40.30.71.4
Percentage of RevenueFromRelatedParties86.480.1120.70.05822.9789.7637.30.0847.2930.16140.00.01281.65505.56185.10.02126.40.0
Percentage of RevenueFromRelatedParties atus:OtherProductsandServices0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

atus:PayTV


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value892905904867952947968993101810171033105410341033104910541059108310881051368
Percentage of Revenues35.536.535.735.638.538.739.240.741.642.442.143.643.844.444.545.345.547.147.246.544.8
Percentage of RevenueFromRelatedParties29410.426595.20.020702.528189.627152.00.01418797.1205327.8171846.30.0193516.9142283.9826966.40.0106936.3418915.8768707.80.0146110.40.0
Percentage of RevenueFromRelatedParties atus:PayTV0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

atus:ProductsAndServicesOther


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value3.4333.9143.4473.6192.7074.214.2214.0765.4144.9668.8153.776.7627.675
Percentage of Revenues0.10.20.10.10.10.20.20.20.20.20.40.20.30.3
Percentage of RevenueFromRelatedParties113.1114.90.086.480.1120.70.05822.91091.5838.90.0691.7930.16140.0
Percentage of RevenueFromRelatedParties atus:ProductsAndServicesOther0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

atus:Telephony


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value10310611011511712514514815015416216116316616920420818015021659
Percentage of Revenues4.14.34.44.84.75.15.96.16.16.46.66.76.97.17.28.89.07.96.59.67.2
Percentage of RevenueFromRelatedParties3406.13141.00.02769.73472.13584.60.0211758.630288.726091.90.029605.722489.5132830.40.020766.082391.7128341.10.030025.80.0
Percentage of RevenueFromRelatedParties atus:Telephony0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

atus:TotalResidentialRevenue


Revenuesus-gaap:
Period End2021-06-302021-03-312020-06-302020-03-31
Value1988198319901957
Percentage of Revenues79.080.080.479.9
Percentage of RevenueFromRelatedParties65506.958232.158899.456124.4
Percentage of RevenueFromRelatedParties atus:TotalResidentialRevenue0.00.00.00.0

Assets

us-gaap:Assets

us-gaap:Assets


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value335313316933376339003481333396341083377333779335593361333956339143527934775354313601636474
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets dei:LegalEntity

atus:CSCHoldings


Assetsdei:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value3353133169333763389934813333953410033586
Percentage of Assets100.0100.0100.0100.0100.0100.0100.099.9
Percentage of Assets100.0100.0100.0100.0100.0100.0100.099.9
Percentage of Assets atus:CSCHoldings100.0100.0100.0100.0100.0100.0100.0100.0

Liabilities

us-gaap:Liabilities

us-gaap:Liabilities


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value348803455434554331383364031740317203146631070303572980330105298772964729048319723238734376
Percentage of Liabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets104.0104.2103.597.896.695.093.093.292.090.588.788.788.184.083.590.289.994.2

us-gaap:Liabilities dei:LegalEntity

atus:CSCHoldings


Liabilitiesdei:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value3489734562345813339433963320763193829457
Percentage of Liabilities100.0100.0100.1100.8101.0101.1100.798.8
Percentage of Assets104.1104.2103.698.597.696.093.687.6
Percentage of Assets atus:CSCHoldings104.1104.2103.698.597.696.193.787.7

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:LiabilitiesAndStockholdersEquity


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value335313316933376339003481333396341083377333779335593361333956339143527934775354313601636474
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LiabilitiesAndStockholdersEquity dei:LegalEntity

atus:CSCHoldings


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value3353133169333763389934813333953410033586
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.099.9
Percentage of Assets100.0100.0100.0100.0100.0100.0100.099.9
Percentage of Assets atus:CSCHoldings100.0100.0100.0100.0100.0100.0100.0100.0

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value-1298.94-1334.169-1141.0373411481581226920802525300236703662385953955494306732622029
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-3.9-4.0-3.42.23.34.76.76.27.58.910.910.811.415.315.88.79.15.6

Assets Current

us-gaap:AssetsCurrent

us-gaap:AssetsCurrent


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value80083097616062553927138181774271190311129581931853112511691704
Percentage of AssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.42.52.94.77.32.84.02.42.22.12.73.32.85.52.53.23.24.7

us-gaap:AssetsCurrent dei:LegalEntity

atus:CSCHoldings


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value800830976160625539261373894
Percentage of AssetsCurrent99.9100.0100.0100.0100.099.999.499.1
Percentage of Assets2.42.52.94.77.32.84.02.7
Percentage of Assets atus:CSCHoldings2.42.52.94.77.32.84.02.7

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashAndCashEquivalentsAtCarryingValue


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value22122027811919522447011751381232984863811427273550274486
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.70.70.80.45.60.72.10.50.40.40.91.41.14.00.81.60.81.3

us-gaap:CashAndCashEquivalentsAtCarryingValue dei:LegalEntity

atus:CSCHoldings


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value2212202771181952243697298
Percentage of CashAndCashEquivalentsAtCarryingValue99.999.899.899.9100.099.699.499.9
Percentage of Assets0.70.70.80.45.60.72.00.9
Percentage of Assets atus:CSCHoldings0.70.70.80.45.60.72.00.9

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-31
Value2212202789841952244702175138123299486381142727359562548850319685978784
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.70.70.82.95.60.72.10.50.40.40.91.41.14.00.81.71.70.01.40.00.00.0

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents dei:LegalEntity

atus:CSCHoldings


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-31
Value2212202789841952243698174137123298318417
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents99.999.899.8100.0100.099.699.499.799.3100.099.9116.383.0
Percentage of Assets0.70.70.82.95.60.72.00.50.40.40.90.91.1
Percentage of Assets atus:CSCHoldings0.70.70.82.95.60.72.00.00.00.00.90.00.0

Accounts Receivable Net Current

us-gaap:AccountsReceivableNetCurrent

us-gaap:AccountsReceivableNetCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value404376442405387441457442420405448436382330370344328349
Percentage of AccountsReceivableNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.21.11.31.21.11.31.31.31.21.21.31.31.10.91.11.00.91.0

us-gaap:AccountsReceivableNetCurrent dei:LegalEntity

atus:CSCHoldings


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value404376442405387441457448
Percentage of AccountsReceivableNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.21.11.31.21.11.31.31.3
Percentage of Assets atus:CSCHoldings1.21.11.31.21.11.31.31.3

Prepaid Expense And Other Assets Current

us-gaap:PrepaidExpenseAndOtherAssetsCurrent

us-gaap:PrepaidExpenseAndOtherAssetsCurrent


Prepaid
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value1672212002152092372151951821811361671661421351099388
Percentage of PrepaidExpenseAndOtherAssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.50.70.60.60.60.70.60.60.50.50.40.50.50.40.40.30.30.2

us-gaap:PrepaidExpenseAndOtherAssetsCurrent dei:LegalEntity

atus:CSCHoldings


Prepaid
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value166221200215209237211141
Percentage of PrepaidExpenseAndOtherAssetsCurrent99.9100.0100.0100.0100.0100.098.3103.7
Percentage of Assets0.50.70.60.60.60.70.60.4
Percentage of Assets atus:CSCHoldings0.50.70.60.60.60.70.60.4

Property Plant And Equipment Gross

us-gaap:PropertyPlantAndEquipmentGross

us-gaap:PropertyPlantAndEquipmentGross


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value1223711030987386637636
Percentage of PropertyPlantAndEquipmentGross100.0100.0100.0100.0100.0
Percentage of Assets36.732.329.424.920.9

us-gaap:PropertyPlantAndEquipmentGross us-gaap:BusinessAcquisition

atus:NewJerseyCableAssets


Property
Period End2020-07-14
Value52
Percentage of PropertyPlantAndEquipmentGross0.0
Percentage of Assets0.0
Percentage of Assets atus:NewJerseyCableAssets0.0

us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType

atus:CustomerPremiseEquipment


Property
Period End2020-12-312019-12-312018-12-312017-12-31
Value1845156313541093
Percentage of PropertyPlantAndEquipmentGross15.114.213.712.6
Percentage of Assets5.54.64.03.1
Percentage of Assets atus:CustomerPremiseEquipment0.00.00.00.0

atus:EquipmentandSoftware


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value123711111083917735
Percentage of PropertyPlantAndEquipmentGross10.110.111.010.69.6
Percentage of Assets3.73.33.22.62.0
Percentage of Assets atus:EquipmentandSoftware0.00.00.00.00.0

atus:HeadendsandRelatedEquipment


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value21582023185216261482
Percentage of PropertyPlantAndEquipmentGross17.618.318.818.819.4
Percentage of Assets6.55.95.54.74.1
Percentage of Assets atus:HeadendsandRelatedEquipment0.00.00.00.00.0

atus:Infrastructure


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value59645314459539983740
Percentage of PropertyPlantAndEquipmentGross48.748.246.546.249.0
Percentage of Assets17.915.613.711.510.3
Percentage of Assets atus:Infrastructure0.00.00.00.00.0

us-gaap:BuildingAndBuildingImprovements


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value481457411394390
Percentage of PropertyPlantAndEquipmentGross3.94.14.24.65.1
Percentage of Assets1.41.31.21.11.1
Percentage of Assets us-gaap:BuildingAndBuildingImprovements0.00.00.00.00.0

us-gaap:ConstructionInProgress


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value17419221528684
Percentage of PropertyPlantAndEquipmentGross1.41.72.23.31.1
Percentage of Assets0.50.60.60.80.2
Percentage of Assets us-gaap:ConstructionInProgress0.00.00.00.00.0

us-gaap:FurnitureAndFixtures


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value6563575245
Percentage of PropertyPlantAndEquipmentGross0.50.60.60.60.6
Percentage of Assets0.20.20.20.20.1
Percentage of Assets us-gaap:FurnitureAndFixtures0.00.00.00.00.0

us-gaap:Land


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value4848484747
Percentage of PropertyPlantAndEquipmentGross0.40.40.50.50.6
Percentage of Assets0.10.10.10.10.1
Percentage of Assets us-gaap:Land0.00.00.00.00.0

us-gaap:LeaseholdImprovements


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value110103109108104
Percentage of PropertyPlantAndEquipmentGross0.90.91.11.21.4
Percentage of Assets0.30.30.30.30.3
Percentage of Assets us-gaap:LeaseholdImprovements0.00.00.00.00.0

us-gaap:TransportationEquipment


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value150151146137135
Percentage of PropertyPlantAndEquipmentGross1.21.41.51.61.8
Percentage of Assets0.50.40.40.40.4
Percentage of Assets us-gaap:TransportationEquipment0.00.00.00.00.0

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value678466396431615858805601527650584704438440443393339329832599218117941039
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets20.220.019.318.216.916.815.515.013.913.112.010.010.08.57.56.25.02.8

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment dei:LegalEntity

atus:CSCHoldings


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value67846639527661585880560152764044
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment100.0100.082.0100.0100.0100.0100.0100.0
Percentage of Assets20.220.015.818.216.916.815.512.0
Percentage of Assets atus:CSCHoldings20.220.015.818.216.916.815.512.0

Amortization Of Intangible Assets

us-gaap:AmortizationOfIntangibleAssets

us-gaap:AmortizationOfIntangibleAssets


Amortization
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value16116518117218320119419120120020820822623136042631723825025832
Percentage of AmortizationOfIntangibleAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Property Plant And Equipment Net

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:PropertyPlantAndEquipmentNet


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value602358435805576057235781575357975814577258285760569458196063616162286597
Percentage of PropertyPlantAndEquipmentNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets18.017.617.417.016.417.316.917.217.217.217.317.016.816.517.417.417.318.1

us-gaap:PropertyPlantAndEquipmentNet dei:LegalEntity

atus:CSCHoldings


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value60235843580557605723578157535828
Percentage of PropertyPlantAndEquipmentNet100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets18.017.617.417.016.417.316.917.3
Percentage of Assets atus:CSCHoldings18.017.617.417.016.417.316.917.4

Goodwill

us-gaap:Goodwill

us-gaap:Goodwill


Goodwill
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312015-12-31
Value8206816081608160814281428142813881388012801280128004801979967993799379922040
Percentage of Goodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets24.524.624.424.123.424.423.924.124.123.923.823.623.622.723.022.622.221.90.0

us-gaap:Goodwill dei:LegalEntity

atus:CSCHoldings


Goodwilldei:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value82068160816081608142814281428012
Percentage of Goodwill100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets24.524.624.424.123.424.423.923.8
Percentage of Assets atus:CSCHoldings24.524.624.524.123.424.423.923.9

us-gaap:Goodwill us-gaap:BusinessAcquisition

atus:Cheddar


Goodwillus-gaap:
Period End2020-12-312019-12-312019-09-302019-06-30
Value130130126125
Percentage of Goodwill1.61.61.61.5
Percentage of Assets0.40.40.40.4
Percentage of Assets atus:Cheddar0.00.00.00.0

Indefinite Lived Intangible Assets Excluding Goodwill

us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill

us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill


Indefinite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value132161306813068130681302013020130201302013020130201302013020130201302013020130201302013020
Percentage of IndefiniteLivedIntangibleAssetsExcludingGoodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets39.439.439.238.537.439.038.238.638.538.838.738.338.436.937.436.736.235.7

us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill dei:LegalEntity

atus:CSCHoldings


Indefinite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value1321613068130681306813020130201302013020
Percentage of IndefiniteLivedIntangibleAssetsExcludingGoodwill100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets39.439.439.238.537.439.038.238.7
Percentage of Assets atus:CSCHoldings39.439.439.238.537.439.038.238.8

us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill us-gaap:BusinessAcquisition

atus:NewJerseyCableAssets


Indefinite
Period End2020-07-14
Value47
Percentage of IndefiniteLivedIntangibleAssetsExcludingGoodwill0.0
Percentage of Assets0.0
Percentage of Assets atus:NewJerseyCableAssets0.0

Finite Lived Intangible Assets Net

us-gaap:FiniteLivedIntangibleAssetsNet

us-gaap:FiniteLivedIntangibleAssetsNet


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value251626162781296130973280348136753865399241924400460848345066542658516352
Percentage of FiniteLivedIntangibleAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets7.57.98.38.78.99.810.210.911.411.912.513.013.613.714.615.316.217.4

us-gaap:FiniteLivedIntangibleAssetsNet dei:LegalEntity

atus:CSCHoldings


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value25162616278129613097328034814192
Percentage of FiniteLivedIntangibleAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets7.57.98.38.78.99.810.212.5
Percentage of Assets atus:CSCHoldings7.57.98.38.78.99.810.212.5

us-gaap:FiniteLivedIntangibleAssetsNet us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:CustomerRelationships


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value235824332573272928432999317333403505363338083991417343674561476349685345
Percentage of FiniteLivedIntangibleAssetsNet93.793.092.592.291.891.591.290.990.791.090.890.790.690.390.087.884.984.1
Percentage of Assets7.07.37.78.18.29.09.39.910.410.811.311.812.312.413.113.413.814.7
Percentage of Assets us-gaap:CustomerRelationships0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OtherIntangibleAssets


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value181820211921242727171820222426283023
Percentage of FiniteLivedIntangibleAssetsNet0.70.70.70.70.60.70.70.80.70.40.50.50.50.50.50.50.50.4
Percentage of Assets0.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.1
Percentage of Assets us-gaap:OtherIntangibleAssets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TradeNames


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value139163186210234258282307331341365388412442478634853983
Percentage of FiniteLivedIntangibleAssetsNet5.56.26.77.17.67.98.18.48.68.68.78.89.09.29.411.714.615.5
Percentage of Assets0.40.50.60.60.70.80.80.91.01.01.11.11.21.31.41.82.42.7
Percentage of Assets us-gaap:TradeNames0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

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
Value2302342412372702802802822892590.0
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets0.70.70.70.70.80.80.80.80.90.80.0

us-gaap:OperatingLeaseRightOfUseAsset dei:LegalEntity

atus:CSCHoldings


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value2302342412372702802800.0
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets0.70.70.70.70.80.80.80.0
Percentage of Assets atus:CSCHoldings0.70.70.70.70.80.80.80.0

Other Assets Noncurrent

us-gaap:OtherAssetsNoncurrent

us-gaap:OtherAssetsNoncurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value88928789106109921029275849711712253496948
Percentage of OtherAssetsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.30.30.30.30.30.30.30.30.30.20.30.30.30.30.20.10.20.1

us-gaap:OtherAssetsNoncurrent dei:LegalEntity

atus:CSCHoldings


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value889287891061099265
Percentage of OtherAssetsNoncurrent100.0100.0100.0100.0100.0100.0100.077.2
Percentage of Assets0.30.30.30.30.30.30.30.2
Percentage of Assets atus:CSCHoldings0.30.30.30.30.30.30.30.2

Accounts Payable Current

us-gaap:AccountsPayableCurrent

us-gaap:AccountsPayableCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value927879795837832855799878909835857883801725790685684697
Percentage of AccountsPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.82.72.42.52.42.62.32.62.72.52.62.62.42.12.31.91.91.9

us-gaap:AccountsPayableCurrent dei:LegalEntity

atus:CSCHoldings


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value927879795837832855799857
Percentage of AccountsPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.82.72.42.52.42.62.32.6
Percentage of Assets atus:CSCHoldings2.82.72.42.52.42.62.32.6

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
Value129153109127117126124108141145140131121122111
Percentage of ContractWithCustomerLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.40.50.30.40.30.40.40.30.40.40.40.40.40.30.3

us-gaap:ContractWithCustomerLiabilityCurrent dei:LegalEntity

atus:CSCHoldings


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value129153109127117126124140
Percentage of ContractWithCustomerLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.40.50.30.40.30.40.40.4
Percentage of Assets atus:CSCHoldings0.40.50.30.40.30.40.40.4

Liabilities Current

us-gaap:LiabilitiesCurrent

us-gaap:LiabilitiesCurrent


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value309531913098196136921881197818792518180120212476295627602492348336503704
Percentage of LiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets9.29.69.35.810.65.65.85.67.55.46.07.38.77.87.29.810.110.2

us-gaap:LiabilitiesCurrent dei:LegalEntity

atus:CSCHoldings


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value30953171309719463692185719782143
Percentage of LiabilitiesCurrent100.099.4100.099.2100.098.7100.0106.1
Percentage of Assets9.29.69.35.710.65.65.86.4
Percentage of Assets atus:CSCHoldings9.29.69.35.710.65.65.86.4

Long Term Debt Current

us-gaap:LongTermDebtCurrent

us-gaap:LongTermDebtCurrent


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value1296125812452261859179170158
Percentage of LongTermDebtCurrent100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.93.83.70.75.30.50.50.5

us-gaap:LongTermDebtCurrent dei:LegalEntity

atus:CSCHoldings


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value1296125812452261859179170158
Percentage of LongTermDebtCurrent100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.93.83.70.75.30.50.50.5
Percentage of Assets atus:CSCHoldings3.93.83.70.75.30.50.50.5

us-gaap:LongTermDebtCurrent us-gaap:ShortTermDebtType

us-gaap:CreditFacilityDomain


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value7878787272726554
Percentage of LongTermDebtCurrent6.16.36.332.23.940.538.234.4
Percentage of Assets0.20.20.20.20.20.20.20.2
Percentage of Assets us-gaap:CreditFacilityDomain0.00.00.00.00.00.00.00.0

us-gaap:ShortTermDebt


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value1296125812452261859179170161660123158
Percentage of LongTermDebtCurrent100.0100.0100.0100.0100.0100.0100.00.00.00.0100.0
Percentage of Assets3.93.83.70.75.30.50.50.52.00.40.5
Percentage of Assets us-gaap:ShortTermDebt0.00.00.00.00.00.00.00.00.00.00.0

Operating Lease Liability Current

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OperatingLeaseLiabilityCurrent


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
Value373838394041383839410.0
Percentage of OperatingLeaseLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets0.10.10.10.10.10.10.10.10.10.10.0

Other Accrued Liabilities Current

us-gaap:OtherAccruedLiabilitiesCurrent

us-gaap:OtherAccruedLiabilitiesCurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value364550544416387354378312329317318408412355360
Percentage of OtherAccruedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.11.71.61.21.11.11.10.91.00.90.91.21.21.01.0

us-gaap:OtherAccruedLiabilitiesCurrent dei:LegalEntity

atus:CSCHoldings


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value364530543400387330378301
Percentage of OtherAccruedLiabilitiesCurrent100.096.599.996.3100.093.2100.096.6
Percentage of Assets1.11.61.61.21.11.01.10.9
Percentage of Assets atus:CSCHoldings1.11.61.61.21.11.01.10.9

Long Term Debt

us-gaap:LongTermDebt

us-gaap:LongTermDebt


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312016-04-26
Value26989266892672225702261852444724420240572364023261228121477
Percentage of LongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets80.580.580.175.875.273.271.671.270.069.367.90.0

us-gaap:LongTermDebt us-gaap:DebtInstrument

us-gaap:LoansPayable


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value139118174154107135140106
Percentage of LongTermDebt0.50.40.70.60.40.60.60.5
Percentage of Assets0.40.40.50.50.30.40.40.3
Percentage of Assets us-gaap:LoansPayable0.00.00.00.00.00.00.00.0

us-gaap:SecuredDebt


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value16871677161716091601159315851406
Percentage of LongTermDebt6.36.36.16.36.16.56.56.2
Percentage of Assets5.05.14.84.74.64.84.64.2
Percentage of Assets us-gaap:SecuredDebt0.00.00.00.00.00.00.00.0

us-gaap:LongTermDebt us-gaap:ShortTermDebtType

us-gaap:LoansPayable


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value1321101139345758398
Percentage of LongTermDebt0.50.40.40.40.20.30.30.4
Percentage of Assets0.40.30.30.30.10.20.20.3
Percentage of Assets us-gaap:LoansPayable0.00.00.00.00.00.00.00.0

Long Term Debt Noncurrent

us-gaap:LongTermDebtNoncurrent

us-gaap:LongTermDebtNoncurrent


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value256922543125476254762432624267242492389522653
Percentage of LongTermDebtNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets76.676.776.375.269.972.771.170.867.4

us-gaap:LongTermDebtNoncurrent dei:LegalEntity

atus:CSCHoldings


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value2569225431254762547624326242672424921558
Percentage of LongTermDebtNoncurrent100.0100.0100.0100.0100.0100.0100.095.2
Percentage of Assets76.676.776.375.269.972.771.164.1
Percentage of Assets atus:CSCHoldings76.676.776.375.269.972.771.164.2

us-gaap:LongTermDebtNoncurrent us-gaap:LongtermDebtType

us-gaap:LongTermDebt


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value2569225431254762547624326242672424923895229802313722653
Percentage of LongTermDebtNoncurrent100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0
Percentage of Assets76.676.776.375.269.972.771.170.868.068.967.4
Percentage of Assets us-gaap:LongTermDebt0.00.00.00.00.00.00.00.00.00.00.0

Deferred Income Tax Liabilities Net

us-gaap:DeferredIncomeTaxLiabilitiesNet

us-gaap:DeferredIncomeTaxLiabilitiesNet


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value51075037500648504833481147624809471647294775719473427966
Percentage of DeferredIncomeTaxLiabilitiesNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets15.215.215.014.313.914.414.014.213.913.413.720.320.421.8

us-gaap:DeferredIncomeTaxLiabilitiesNet dei:LegalEntity

atus:CSCHoldings


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value5123506550335121515651724980
Percentage of DeferredIncomeTaxLiabilitiesNet100.3100.6100.6105.6106.7107.5104.6
Percentage of Assets15.315.315.115.114.815.514.6
Percentage of Assets atus:CSCHoldings15.315.315.115.114.815.514.6

Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent


Pension
Period End2020-12-312019-12-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value305796849797103939384
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.10.20.30.20.30.30.30.30.30.2

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent dei:LegalEntity

atus:CSCHoldings


Pension
Period End2020-12-312019-12-312018-12-31
Value305796
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent100.0100.0100.0
Percentage of Assets0.10.20.3
Percentage of Assets atus:CSCHoldings0.10.20.3

Minority Interest

us-gaap:MinorityInterest

us-gaap:MinorityInterest


Minority
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
Value-50.054-53.404-62.109108.8318.6189.2988.2968.1398.0969.2958.5737.3871.5411.5390.6890.8890.287
Percentage of MinorityInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-0.1-0.2-0.20.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:MinorityInterest dei:LegalEntity

atus:CSCHoldings


Minority
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-312017-12-31
Value-50.054-53.404-62.109108.8318.6189.2989.2951.539
Percentage of MinorityInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-0.1-0.2-0.20.00.00.00.00.00.0
Percentage of Assets atus:CSCHoldings-0.1-0.2-0.20.00.00.00.00.00.0

us-gaap:MinorityInterest dei:LegalEntity, us-gaap:StatementEquityComponents

atus:CSCHoldings, us-gaap:NoncontrollingInterest


Minority
Period End2021-06-302021-03-312020-12-312020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-31
Value-50.054-53.404-62.1098.6189.2988.2968.1398.0969.2951.5390.287
Percentage of MinorityInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-0.1-0.2-0.20.00.00.00.00.00.00.00.0
Percentage of Assets atus:CSCHoldings us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.0

Other Liabilities Noncurrent

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:OtherLiabilitiesNoncurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value158172161230215220147245238231174169141131137144157113
Percentage of OtherLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.50.50.50.70.60.70.40.70.70.70.50.50.40.40.40.40.40.3

us-gaap:OtherLiabilitiesNoncurrent dei:LegalEntity

atus:CSCHoldings


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value158172161230215220147174
Percentage of OtherLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.50.50.50.70.60.70.40.5
Percentage of Assets atus:CSCHoldings0.50.50.50.70.60.70.40.5

Operating Lease Liability Noncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent


Operating
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value2482572532592672692702772450.0
Percentage of OperatingLeaseLiabilityNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets0.70.80.70.70.80.80.80.80.70.0

us-gaap:OperatingLeaseLiabilityNoncurrent dei:LegalEntity

atus:CSCHoldings


Operating
Period End2020-12-312019-12-31
Value257269
Percentage of OperatingLeaseLiabilityNoncurrent100.0100.0
Percentage of Assets0.80.8
Percentage of Assets atus:CSCHoldings0.80.8

Lessee Operating Lease Liability Payments Due Year Two

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo


Lessee
Period End2021-06-302021-03-312020-12-312020-09-302019-12-312019-09-302019-06-30
Value54525244475150
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearTwo100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.20.20.20.10.10.20.1

Lessee Operating Lease Liability Payments Due Year Three

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree


Lessee
Period End2021-06-302021-03-312020-12-312020-09-302019-12-312019-09-302019-06-30
Value46454449484645
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearThree100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.10.10.10.10.10.10.1

Lessee Operating Lease Liability Payments Due Year Four

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour


Lessee
Period End2021-06-302021-03-312020-12-312020-09-302019-12-312019-09-302019-06-30
Value42414041384747
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFour100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.10.10.10.10.10.10.1

Lessee Operating Lease Liability Payments Due Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive


Lessee
Period End2021-06-302021-03-312020-12-312020-09-302019-12-312019-09-302019-06-30
Value34333236343736
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFive100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.10.10.10.10.10.10.1

Lessee Operating Lease Liability Payments Due After Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive


Lessee
Period End2021-06-302021-03-312020-12-312020-09-302019-12-312019-09-302019-06-30
Value171167171201193219218
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.50.50.50.60.60.70.6

Operating Lease Liability

us-gaap:OperatingLeaseLiability

us-gaap:OperatingLeaseLiability


Operating
Period End2020-12-31
Value295
Percentage of OperatingLeaseLiability100.0
Percentage of Assets0.9

Lessee Operating Lease Liability Payments Due

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value366370385385
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue100.0100.0100.0100.0
Percentage of Assets1.11.11.21.1

Lessee Operating Lease Liability Undiscounted Excess Amount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount


Lessee
Period End2020-12-31
Value89
Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount100.0
Percentage of Assets0.3

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value-1298.94-1334.169-1141.0373411481581226920802525300236703662385953955494306732622029
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-3.9-4.0-3.42.23.34.76.76.27.58.910.910.811.415.315.88.79.15.6

Stockholders Equity Including Portion Attributable To Noncontrolling Interest

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312015-12-31
Value-1348.994-1387.573-1203.139745115715902279208925333011368036703867539654953068326320292108
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-4.0-4.2-3.62.23.34.86.76.27.59.010.910.811.415.315.88.79.15.60.0

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap:StatementClassOfStock, us-gaap:StatementEquityComponents

us-gaap:CommonClassA, us-gaap:CommonStock


Stockholders
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312015-12-31
Value2.8222.9723.8394.0054.2614.5724.5064.6814.9094.9615.1074.9282.472.472.472.470.00.0
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-0.2-0.20.50.30.30.20.20.20.20.10.10.10.00.00.10.10.00.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonClassA us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonClassB, us-gaap:CommonStock


Stockholders
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value1.8581.8591.861.8621.8621.8621.8631.8721.8882.132.1312.4434.9014.9014.9014.9010.0
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-0.1-0.20.20.20.10.10.10.10.10.10.10.10.10.10.20.20.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonClassB us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312015-12-31
Value103.646-8.806-12.118-13.177-3.25-25.52-14.474-8.212-11.783-2.291-10.438-8.42-10.022-4.13-2.3051.9790.0
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-0.8-0.3-1.2-1.0-0.8-0.1-1.2-0.6-0.3-0.3-0.1-0.3-0.2-0.2-0.1-0.10.10.0
Percentage of Assets0.00.0-0.0-0.0-0.0-0.0-0.1-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.00.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312015-12-31
Value40581713622039170922202777342336183856468246424466447630032252
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest54.370.685.789.581.887.692.293.098.699.786.884.5145.5137.2148.0106.8
Percentage of Assets1.22.34.16.05.16.68.310.210.711.413.313.312.612.48.20.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NoncontrollingInterest


Stockholders
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312015-12-31
Value-53.404-62.109108.8318.6189.2988.2968.1398.0969.2958.5737.3871.5411.5390.6890.8890.2870.0
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest3.85.21.40.80.50.40.40.30.30.30.20.20.00.00.00.00.00.0
Percentage of Assets-0.2-0.20.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Parent


Stockholders
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312015-12-31
Value-1334.169-1141.03734114815812269208025253002367036623859539554943067326220292108
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest96.294.898.699.299.599.699.699.799.799.799.899.8100.0100.0100.0100.0100.0100.0
Percentage of Assets-4.0-3.42.23.34.76.76.27.58.910.910.811.415.315.88.79.15.60.0
Percentage of Assets us-gaap:Parent0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312015-12-31
Value-1185.61-985.641496501389390390313226251386.191713854-1401.548-1219.327-975.978-143.948
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest85.481.966.643.324.517.118.712.47.56.81.10.213.215.6-45.7-37.4-48.1-6.8
Percentage of Assets-3.6-3.01.51.41.21.11.20.90.70.70.10.02.02.5-4.0-3.4-2.70.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TreasuryStock


Stockholders
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value-163.86-163.866-163.867-163.869-163.893-163.9040.00.00.00.0
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest11.813.6-22.0-14.2-10.3-7.20.00.00.00.0
Percentage of Assets-0.5-0.5-0.5-0.5-0.5-0.50.00.00.00.0
Percentage of Assets us-gaap:TreasuryStock0.00.00.00.00.00.00.00.00.00.0

Common Stock Value

us-gaap:CommonStockValue us-gaap:StatementClassOfStock

us-gaap:CommonStockValue

us-gaap:CommonClassA


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value2713000.02822000.02972000.03839000.04005000.04261000.04572000.04506000.04681000.04909000.04961000.05107000.04928000.02470000.02470000.02470000.02470000.00
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonClassA0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonClassB


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value1858000.01858000.01859000.01860000.01862000.01862000.01862000.01863000.01872000.01888000.02130000.02131000.02443000.04901000.04901000.04901000.04901000.00
Percentage of CommonStockValue68.565.862.648.546.543.740.741.340.038.542.941.749.6198.4198.4198.4198.40.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonClassB0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Additional Paid In Capital

us-gaap:AdditionalPaidInCapital

us-gaap:AdditionalPaidInCapital


Additional
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value4058171362203917092220277734233618385646824642446644763003
Percentage of AdditionalPaidInCapital100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.22.34.16.05.16.68.310.210.711.413.313.312.612.48.2

Retained Earnings Accumulated Deficit

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:RetainedEarningsAccumulatedDeficit


Retained
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value-1315.08-1185.61-985.641496501389390390313226251386.191713854-1401.548-1219.327-975.978
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-3.9-3.6-3.01.51.41.21.11.20.90.70.70.10.02.02.5-4.0-3.4-2.7

us-gaap:RetainedEarningsAccumulatedDeficit dei:LegalEntity

atus:CSCHoldings


Retained
Period End2020-09-302020-06-302020-03-312019-12-312018-12-31
Value-4.4727.480.013549
Percentage of RetainedEarningsAccumulatedDeficit-0.91.50.03.5218.3
Percentage of Assets-0.00.00.00.01.6
Percentage of Assets atus:CSCHoldings-0.00.00.00.01.6

us-gaap:RetainedEarningsAccumulatedDeficit dei:LegalEntity, us-gaap:StatementEquityComponents

atus:CSCHoldings, us-gaap:RetainedEarnings


Retained
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-31
Value-4.4727.480.0131712-1.1915492034-685.576
Percentage of RetainedEarningsAccumulatedDeficit-0.91.50.03.54.54.0-0.5218.3238.070.2
Percentage of Assets-0.00.00.00.00.10.0-0.01.65.9-1.9
Percentage of Assets atus:CSCHoldings us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.0

Accumulated Other Comprehensive Income Loss Net Of Tax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value11103.646-8.806-12.118-13.177-3.25-25.52-14.474-8.212-11.783-2.291-10.438-8.42-10.022-4.13-2.3051.979
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.0-0.0-0.0-0.0-0.0-0.1-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.00.0

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax dei:LegalEntity

atus:CSCHoldings


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value11103.646-8.806-12.118-13.177-3.25-11.783
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.0-0.0-0.0-0.0-0.0-0.0
Percentage of Assets atus:CSCHoldings0.00.00.0-0.0-0.0-0.0-0.0-0.0

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax dei:LegalEntity, us-gaap:StatementEquityComponents

atus:CSCHoldings, us-gaap:AccumulatedOtherComprehensiveIncome


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-31
Value11103.646-8.806-12.118-13.177-3.25-25.52-14.474-8.212-11.783-10.0221.979
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.0-0.0-0.0-0.0-0.0-0.1-0.0-0.0-0.0-0.00.0
Percentage of Assets atus:CSCHoldings us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.0

Treasury Stock Value

us-gaap:TreasuryStockValue

us-gaap:TreasuryStockValue


Treasury
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value1631631631631631630.00.00.0
Percentage of TreasuryStockValue100.0100.0100.0100.0100.0100.00.00.00.0
Percentage of Assets0.50.50.50.50.50.50.00.00.0

Minority Interest

us-gaap:MinorityInterest

us-gaap:MinorityInterest


Minority
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
Value-50.054-53.404-62.109108.8318.6189.2988.2968.1398.0969.2958.5737.3871.5411.5390.6890.8890.287
Percentage of MinorityInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-0.1-0.2-0.20.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:MinorityInterest dei:LegalEntity

atus:CSCHoldings


Minority
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-312017-12-31
Value-50.054-53.404-62.109108.8318.6189.2989.2951.539
Percentage of MinorityInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-0.1-0.2-0.20.00.00.00.00.00.0
Percentage of Assets atus:CSCHoldings-0.1-0.2-0.20.00.00.00.00.00.0

us-gaap:MinorityInterest dei:LegalEntity, us-gaap:StatementEquityComponents

atus:CSCHoldings, us-gaap:NoncontrollingInterest


Minority
Period End2021-06-302021-03-312020-12-312020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-31
Value-50.054-53.404-62.1098.6189.2988.2968.1398.0969.2951.5390.287
Percentage of MinorityInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-0.1-0.2-0.20.00.00.00.00.00.00.00.0
Percentage of Assets atus:CSCHoldings us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.0

Stock Issued During Period Value New Issues

us-gaap:StockIssuedDuringPeriodValueNewIssues

us-gaap:StockIssuedDuringPeriodValueNewIssues


Stock
Period End2021-06-302021-03-312020-06-302020-03-312019-09-302019-06-302017-09-30
Value8.8852.0441.9652.5070.4290.2440.0
Percentage of StockIssuedDuringPeriodValueNewIssues100.0100.0100.0100.0100.0100.00.0
Percentage of Assets0.00.00.00.00.00.00.0

us-gaap:StockIssuedDuringPeriodValueNewIssues us-gaap:StatementClassOfStock, us-gaap:StatementEquityComponents

us-gaap:CommonClassA, us-gaap:CommonStock


Stock
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-06-302017-09-30
Value0.0080.0010.0010.0020.0010.00.0
Percentage of StockIssuedDuringPeriodValueNewIssues0.10.00.00.10.00.00.0
Percentage of Assets0.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonClassA us-gaap:CommonStock0.00.00.00.00.00.00.0

us-gaap:StockIssuedDuringPeriodValueNewIssues us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stock
Period End2021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302017-09-30
Value2.4952.3891.9392.4950.4290.2440.0
Percentage of StockIssuedDuringPeriodValueNewIssues122.10.098.799.5100.0100.00.0
Percentage of Assets0.00.00.00.00.00.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.0

us-gaap:Parent


Stock
Period End2021-06-302021-03-312020-06-302020-03-312019-09-302019-06-302017-09-30
Value8.8852.0441.9652.5070.4290.2440.0
Percentage of StockIssuedDuringPeriodValueNewIssues100.0100.0100.0100.0100.0100.00.0
Percentage of Assets0.00.00.00.00.00.00.0
Percentage of Assets us-gaap:Parent0.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stock
Period End2021-06-302021-03-31
Value-0.4882.037
Percentage of StockIssuedDuringPeriodValueNewIssues-5.599.7
Percentage of Assets0.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.0

us-gaap:TreasuryStock


Stock
Period End2021-06-302021-03-312020-06-302020-03-31
Value9.3650.0060.0240.011
Percentage of StockIssuedDuringPeriodValueNewIssues105.40.31.20.4
Percentage of Assets0.00.00.00.0
Percentage of Assets us-gaap:TreasuryStock0.00.00.00.0

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

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue


Adjustments
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value2727343327181613131212211615
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue dei:LegalEntity

atus:CSCHoldings


Adjustments
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value2727343327181613
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.0
Percentage of Assets atus:CSCHoldings0.00.00.00.00.00.00.00.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue dei:LegalEntity, us-gaap:StatementEquityComponents

atus:CSCHoldings, us-gaap:AdditionalPaidInCapital


Adjustments
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value2727343327181613
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.0
Percentage of Assets atus:CSCHoldings us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.0

atus:CSCHoldings, us-gaap:Parent


Adjustments
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value2727343327181613
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.0
Percentage of Assets atus:CSCHoldings us-gaap:Parent0.00.00.00.00.00.00.00.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Adjustments
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value343327181613131212211615
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Parent


Adjustments
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value2727343327181613131212211615
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:Parent0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Adjustments
Period End2021-06-302021-03-31
Value2727
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0
Percentage of Assets0.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value729749791659935593720541788503738611728430784516456244653357
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromRelatedParties24037.722008.90.015738.327699.817017.30.0772890.0159066.585134.10.0112113.6100177.6344761.60.052338.0180574.7173110.60.049709.7

us-gaap:NetCashProvidedByUsedInOperatingActivities dei:LegalEntity

atus:CSCHoldings


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value700748788662932597741560809511
Percentage of NetCashProvidedByUsedInOperatingActivities96.199.999.6100.599.6100.6103.0103.5102.6101.6
Percentage of RevenueFromRelatedParties23090.521989.50.015822.027584.217119.00.0800314.3163280.886470.1
Percentage of RevenueFromRelatedParties atus:CSCHoldings0.00.00.00.00.00.00.00.00.00.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value-666890000.0-210650000.0-345760000.0-348780000.0-228140000.0-297740000.0-322730000.0-372860000.0-489970000.0-339910000.0-305960000.0-339610000.0-211160000.0-291630000.0-298170000.0-328020000.0-204860000.0-301170000.0-245360000.0-236580000.0
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromRelatedParties-21973.3-6184.60.0-8328.2-6751.6-8536.20.0-532657.1-98785.1-57416.70.0-62314.1-29045.0-233301.60.0-33267.6-80970.8-213597.20.0-32858.8

us-gaap:NetCashProvidedByUsedInInvestingActivities dei:LegalEntity

atus:CSCHoldings


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-666890000.0-210650000.0-345760000.0-352650000.0-224480000.0-301750000.0-322730000.0-372860000.0-489970000.0-339910000.0
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0101.198.4101.3100.0100.0100.0100.0
Percentage of RevenueFromRelatedParties-21973.3-6184.60.0-8420.4-6643.2-8651.10.0-532657.1-98785.1-57416.7
Percentage of RevenueFromRelatedParties atus:CSCHoldings0.00.00.00.00.00.00.00.00.00.0

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value-61.763-597.445-1150.737-1277.8331000-752.803129-131.401-282.951-339.615-619.115-166.819-1563.541958-808.338-218.011-114.95942-1873.991248
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromRelatedParties-2035.0-17541.00.0-30511.829604.3-21582.70.0-187715.7-57046.6-57367.40.0-30609.0-215067.5766783.20.0-22110.6-45438.329976.60.0173393.9

us-gaap:NetCashProvidedByUsedInFinancingActivities dei:LegalEntity

atus:CSCHoldings


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-32.873-596.658-1148.257-1277.5421001-749.18104-150.2-304.784-347.318
Percentage of NetCashProvidedByUsedInFinancingActivities53.299.999.8100.0100.199.580.6114.3107.7102.3
Percentage of RevenueFromRelatedParties-1083.1-17517.90.0-30504.829640.6-21478.80.0-214571.4-61448.4-58668.6
Percentage of RevenueFromRelatedParties atus:CSCHoldings0.00.00.00.00.00.00.00.00.00.0

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

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0.748-57.851-705.639-968.0811707-457.4055263615-175.773-187.423105-1046.5111097
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromRelatedParties24.6-1698.50.0-23115.650537.2-13113.70.051967.13167.3-29691.40.019278.5-143949.2878243.2

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect dei:LegalEntity

atus:CSCHoldings


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value0.893-57.724-706.043-968.1471708-454.2465233614-175.567
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect119.499.8100.1100.0100.199.399.3101.194.199.9
Percentage of RevenueFromRelatedParties29.4-1694.80.0-23117.250566.3-13023.10.052535.72979.8-29656.6
Percentage of RevenueFromRelatedParties atus:CSCHoldings0.00.00.00.00.00.00.00.00.00.0

Deferred Income Tax Expense Benefit

us-gaap:DeferredIncomeTaxExpenseBenefit

us-gaap:DeferredIncomeTaxExpenseBenefit


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value69298.529152030-40.7633639-19.918-82.00294-14.447-65.833-2412.536-150.218-256.206-52.184-158.521-119.537
Percentage of DeferredIncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredIncomeTaxExpenseBenefit dei:LegalEntity

atus:CSCHoldings


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value5729-18.563-36.297-16.758172-314.8034246-13.007
Percentage of DeferredIncomeTaxExpenseBenefit83.1100.0-217.6-228.6-80.3571.8772.3118.9116.965.3

Depreciation Depletion And Amortization

us-gaap:DepreciationDepletionAndAmortization

us-gaap:DepreciationDepletionAndAmortization


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value444434511502521547567565568561555536648642791823706608614670214
Percentage of DepreciationDepletionAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DepreciationDepletionAndAmortization dei:LegalEntity

atus:CSCHoldings


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value444434511502521547567565568561
Percentage of DepreciationDepletionAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Accounts Payable

us-gaap:IncreaseDecreaseInAccountsPayable

us-gaap:IncreaseDecreaseInAccountsPayable


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value-87.771-29.696-119.267-9.377-13.35723-60.1258.469-15.3433-73.04236381118-16.692-80.658147-49.28646
Percentage of IncreaseDecreaseInAccountsPayable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInAccountsPayable dei:LegalEntity

atus:CSCHoldings


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-87.615-29.611-334.934-9.377-13.35723-60.1258.669-15.5433
Percentage of IncreaseDecreaseInAccountsPayable99.899.7280.8100.0100.0100.0100.0102.4101.3100.0

Increase Decrease In Accounts Receivable

us-gaap:IncreaseDecreaseInAccountsReceivable

us-gaap:IncreaseDecreaseInAccountsReceivable


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value42-55.2935523-31.984.458444826-28.278327462-25.207443742-34.707198.321
Percentage of IncreaseDecreaseInAccountsReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInAccountsReceivable dei:LegalEntity

atus:CSCHoldings


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value42-55.2935523-31.984.458444826-28.278
Percentage of IncreaseDecreaseInAccountsReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value729749791659935593720541788503738611728430784516456244653357
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromRelatedParties24037.722008.90.015738.327699.817017.30.0772890.0159066.585134.10.0112113.6100177.6344761.60.052338.0180574.7173110.60.049709.7

us-gaap:NetCashProvidedByUsedInOperatingActivities dei:LegalEntity

atus:CSCHoldings


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value700748788662932597741560809511
Percentage of NetCashProvidedByUsedInOperatingActivities96.199.999.6100.599.6100.6103.0103.5102.6101.6
Percentage of RevenueFromRelatedParties23090.521989.50.015822.027584.217119.00.0800314.3163280.886470.1
Percentage of RevenueFromRelatedParties atus:CSCHoldings0.00.00.00.00.00.00.00.00.00.0

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value197274330-4.695111-0.8580.3297786-24.99921332-97.855-128.9512253-182.221-475.155-76.425-236.708-172.809-281.765-140.748
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromRelatedParties6512.78048.60.0-112.13292.8-24.60.0110341.417412.7-4222.80.05973.0-13460.1-103160.80.0-18480.8-187808.3-54202.10.0-24001.20.00.0

us-gaap:NetIncomeLoss dei:LegalEntity

atus:CSCHoldings


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value199274-4.84113102095104-7.6652418521-89.97
Percentage of NetIncomeLoss101.2100.0103.1102.0-1259.06085.1123.5120.530.7113.2262.8-22.269.8
Percentage of RevenueFromRelatedParties6588.48048.6-115.63357.8309.70.0136228.620987.7-1294.80.015699.32981.6-71976.0
Percentage of RevenueFromRelatedParties atus:CSCHoldings0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NetIncomeLoss dei:LegalEntity, us-gaap:StatementEquityComponents

atus:CSCHoldings, us-gaap:AdditionalPaidInCapital


Net
Period End2021-06-302021-03-312020-06-302020-03-31
Value19927411310
Percentage of NetIncomeLoss101.2100.0102.0-1259.0
Percentage of RevenueFromRelatedParties6588.48048.63357.8309.7
Percentage of RevenueFromRelatedParties atus:CSCHoldings us-gaap:AdditionalPaidInCapital0.00.00.00.0

atus:CSCHoldings, us-gaap:Parent


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value199274-4.841131095104-7.665
Percentage of NetIncomeLoss101.2100.0103.1102.0-1259.0123.5120.530.7
Percentage of RevenueFromRelatedParties6588.48048.6-115.63357.8309.7136228.620987.7-1294.8
Percentage of RevenueFromRelatedParties atus:CSCHoldings us-gaap:Parent0.00.00.00.00.00.00.00.0

atus:CSCHoldings, us-gaap:RetainedEarnings


Net
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value-4.841131095104-7.665
Percentage of NetIncomeLoss103.1102.0-1259.0123.5120.530.7
Percentage of RevenueFromRelatedParties-115.63357.8309.7136228.620987.7-1294.8
Percentage of RevenueFromRelatedParties atus:CSCHoldings us-gaap:RetainedEarnings0.00.00.00.00.00.0

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:Parent


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value197274-4.695111-0.8587786-24.99921332-97.855-128.9512253-182.221
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromRelatedParties6512.78048.6-112.13292.8-24.6110341.417412.7-4222.80.05973.0-13460.1-103160.80.0-18480.8
Percentage of RevenueFromRelatedParties us-gaap:Parent0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Net
Period End2021-06-302021-03-312020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value197274111-0.8587786-24.99921332-97.855-128.9512253-182.221
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromRelatedParties6512.78048.63292.8-24.6110341.417412.7-4222.80.05973.0-13460.1-103160.80.0-18480.8
Percentage of RevenueFromRelatedParties us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.0

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value200278336-2.729111-1.5381.3317786-25.19821333-98.004-128.9492254-182.086-474.79-76.188-236.049-172.553-282.129-140.748
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromRelatedParties6620.68177.90.0-65.23299.1-44.10.0110565.717421.4-4256.40.06190.6-13480.6-103159.20.0-18467.1-187664.0-54034.00.0-23965.70.00.0

us-gaap:ProfitLoss dei:LegalEntity

atus:CSCHoldings


Profit
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
Value203278334-2.874113102195104-7.8642428621-89.968
Percentage of ProfitLoss101.1100.099.6105.3102.0-658.11579.4123.4120.531.2113.2257.1-22.069.8
Percentage of RevenueFromRelatedParties6696.28177.90.0-68.63364.1290.20.0136452.920996.4-1328.40.015916.92961.1-71974.4
Percentage of RevenueFromRelatedParties atus:CSCHoldings0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Share Based Compensation

us-gaap:ShareBasedCompensation

us-gaap:ShareBasedCompensation


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value27282934332751181613131212211615187.848121.670.0
Percentage of ShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:ShareBasedCompensation dei:LegalEntity

atus:CSCHoldings


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value27282934332751181613
Percentage of ShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value-666890000.0-210650000.0-345760000.0-348780000.0-228140000.0-297740000.0-322730000.0-372860000.0-489970000.0-339910000.0-305960000.0-339610000.0-211160000.0-291630000.0-298170000.0-328020000.0-204860000.0-301170000.0-245360000.0-236580000.0
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromRelatedParties-21973.3-6184.60.0-8328.2-6751.6-8536.20.0-532657.1-98785.1-57416.70.0-62314.1-29045.0-233301.60.0-33267.6-80970.8-213597.20.0-32858.8

us-gaap:NetCashProvidedByUsedInInvestingActivities dei:LegalEntity

atus:CSCHoldings


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-666890000.0-210650000.0-345760000.0-352650000.0-224480000.0-301750000.0-322730000.0-372860000.0-489970000.0-339910000.0
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0101.198.4101.3100.0100.0100.0100.0
Percentage of RevenueFromRelatedParties-21973.3-6184.60.0-8420.4-6643.2-8651.10.0-532657.1-98785.1-57416.7
Percentage of RevenueFromRelatedParties atus:CSCHoldings0.00.00.00.00.00.00.00.00.00.0

Payments To Acquire Property Plant And Equipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value32321234420122829932237531634032033424025722830320225724724863
Percentage of PaymentsToAcquirePropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment dei:LegalEntity

atus:CSCHoldings


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value323212344201228299322375316340
Percentage of PaymentsToAcquirePropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value-61.763-597.445-1150.737-1277.8331000-752.803129-131.401-282.951-339.615-619.115-166.819-1563.541958-808.338-218.011-114.95942-1873.991248
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromRelatedParties-2035.0-17541.00.0-30511.829604.3-21582.70.0-187715.7-57046.6-57367.40.0-30609.0-215067.5766783.20.0-22110.6-45438.329976.60.0173393.9

us-gaap:NetCashProvidedByUsedInFinancingActivities dei:LegalEntity

atus:CSCHoldings


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-32.873-596.658-1148.257-1277.5421001-749.18104-150.2-304.784-347.318
Percentage of NetCashProvidedByUsedInFinancingActivities53.299.999.8100.0100.199.580.6114.3107.7102.3
Percentage of RevenueFromRelatedParties-1083.1-17517.90.0-30504.829640.6-21478.80.0-214571.4-61448.4-58668.6
Percentage of RevenueFromRelatedParties atus:CSCHoldings0.00.00.00.00.00.00.00.00.00.0

Payments Of Dividends

us-gaap:PaymentsOfDividends dei:LegalEntity

us-gaap:PaymentsOfDividends

atus:CSCHoldings


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1845012990431652720535514635594
Percentage of PaymentsOfDividends100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Payments For Repurchase Of Common Stock

us-gaap:PaymentsForRepurchaseOfCommonStock

us-gaap:PaymentsForRepurchaseOfCommonStock


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value22150330014336557260.04866135862592400.00.0
Percentage of PaymentsForRepurchaseOfCommonStock100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.00.00.0

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

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice us-gaap:PlanName

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

atus:A2017LTIP


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value25.9925.6425.5225.3325.3125.2519.1218.818.4117.6217.517.45
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Liabilities

us-gaap:DeferredTaxLiabilities

us-gaap:DeferredTaxLiabilities


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value50064762472347757966
Percentage of DeferredTaxLiabilities100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilities dei:LegalEntity

atus:CSCHoldings


Deferred
Period End2020-12-312019-12-312018-12-31
Value503349805349
Percentage of DeferredTaxLiabilities100.6104.6113.3

Deferred Tax Assets Net

us-gaap:DeferredTaxAssetsNet

us-gaap:DeferredTaxAssetsNet


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value61388189511251336
Percentage of DeferredTaxAssetsNet100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsNet dei:LegalEntity

atus:CSCHoldings


Deferred
Period End2020-12-312019-12-312018-12-31
Value585663225
Percentage of DeferredTaxAssetsNet95.575.325.2

Deferred Tax Assets Valuation Allowance

us-gaap:DeferredTaxAssetsValuationAllowance

us-gaap:DeferredTaxAssetsValuationAllowance


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value3929253.03.125
Percentage of DeferredTaxAssetsValuationAllowance100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsValuationAllowance dei:LegalEntity

atus:CSCHoldings


Deferred
Period End2020-12-312019-12-312018-12-31
Value22118.225
Percentage of DeferredTaxAssetsValuationAllowance56.440.232.4

atus:AdjustmentstoAdditionalPaidinCapitalAmountofRedeemablePreferredStockVested

atus:AdjustmentstoAdditionalPaidinCapitalAmountofRedeemablePreferredStockVested


Adjustmentsto
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-30
Value3.618205.21959299.071611.36412111
Percentage of AdjustmentstoAdditionalPaidinCapitalAmountofRedeemablePreferredStockVested100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

atus:AdjustmentstoAdditionalPaidinCapitalAmountofRedeemablePreferredStockVested dei:LegalEntity

atus:CSCHoldings


Adjustmentsto
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value3.618205.21959299.071611.364
Percentage of AdjustmentstoAdditionalPaidinCapitalAmountofRedeemablePreferredStockVested100.0100.0100.0100.0100.0100.0100.0100.0

atus:AdjustmentstoAdditionalPaidinCapitalAmountofRedeemablePreferredStockVested dei:LegalEntity, us-gaap:StatementEquityComponents

atus:CSCHoldings, us-gaap:AdditionalPaidInCapital


Adjustmentsto
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value3.618205.21959299.071611.364
Percentage of AdjustmentstoAdditionalPaidinCapitalAmountofRedeemablePreferredStockVested100.0100.0100.0100.0100.0100.0100.0100.0

atus:CSCHoldings, us-gaap:Parent


Adjustmentsto
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value3.618205.21959299.071611.364
Percentage of AdjustmentstoAdditionalPaidinCapitalAmountofRedeemablePreferredStockVested100.0100.0100.0100.0100.0100.0100.0100.0

atus:AdjustmentstoAdditionalPaidinCapitalAmountofRedeemablePreferredStockVested us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Adjustmentsto
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-30
Value5.21959299.071611.36412111
Percentage of AdjustmentstoAdditionalPaidinCapitalAmountofRedeemablePreferredStockVested100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Parent


Adjustmentsto
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-30
Value3.618205.21959299.071611.36412111
Percentage of AdjustmentstoAdditionalPaidinCapitalAmountofRedeemablePreferredStockVested100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RetainedEarnings


Adjustmentsto
Period End2021-06-302021-03-31
Value3.61820
Percentage of AdjustmentstoAdditionalPaidinCapitalAmountofRedeemablePreferredStockVested100.0100.0

atus:AmortizationOfROUAssets

atus:AmortizationOfROUAssets


Amortization
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value1010111111111111
Percentage of AmortizationOfROUAssets100.0100.0100.0100.0100.0100.0100.0100.0

atus:AmortizationOfROUAssets dei:LegalEntity

atus:CSCHoldings


Amortization
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value1010111111111111
Percentage of AmortizationOfROUAssets100.0100.0100.0100.0100.0100.0100.0100.0

atus:AmortizationofActuarialGainsLossesandSettlementGainsLosses

atus:AmortizationofActuarialGainsLossesandSettlementGainsLosses


Amortizationof
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value122000.0271000.0502000.0103000.01091000.0367000.0171000.0339000.065000.0258000.0606000.0442000.01014000.0389000.003331000.0-33000.0
Percentage of AmortizationofActuarialGainsLossesandSettlementGainsLosses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0

atus:CashReceivedFromInterestRateSwapUnwind atus:DerivativeInstrumentName, us-gaap:DerivativeInstrumentRisk

atus:CashReceivedFromInterestRateSwapUnwind

atus:DerivativeInstrumentsMaturingDate2025Fixed1665And168, us-gaap:InterestRateSwap


Cash
Period End2020-12-31
Value0.0
Percentage of CashReceivedFromInterestRateSwapUnwind0.0

atus:DeferredFinancingCostsIncurredButUnpaid

atus:DeferredFinancingCostsIncurredButUnpaid


Deferred
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value5138000.01644000.00-1228000.0383000.0-810000.01663000.0-1000.01006000.000
Percentage of DeferredFinancingCostsIncurredButUnpaid100.0100.00.0100.0100.0100.0100.0100.0100.00.00.0

atus:DepreciationDepletionAndAmortizationIncludingAssetImpairmentCharges

atus:DepreciationDepletionAndAmortizationIncludingAssetImpairmentCharges


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value444434511502521547567565568561555536648642
Percentage of DepreciationDepletionAndAmortizationIncludingAssetImpairmentCharges100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

atus:DepreciationDepletionAndAmortizationIncludingAssetImpairmentCharges dei:LegalEntity

atus:CSCHoldings


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value444434511502521547567565568561
Percentage of DepreciationDepletionAndAmortizationIncludingAssetImpairmentCharges100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

atus:DistributionMadeToLimitedLiabilityCompanyLLCMemberNonCashDistributionsPaid dei:LegalEntity, us-gaap:StatementEquityComponents

atus:DistributionMadeToLimitedLiabilityCompanyLLCMemberNonCashDistributionsPaid

atus:CSCHoldings, us-gaap:AdditionalPaidInCapital


Distribution
Period End2020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302019-03-31
Value6460423546255142454451
Percentage of DistributionMadeToLimitedLiabilityCompanyLLCMemberNonCashDistributionsPaid100.0100.0100.0100.0100.0100.0100.0

atus:CSCHoldings, us-gaap:RetainedEarnings


Distribution
Period End2020-09-302020-06-302019-12-312019-09-302019-06-302019-03-31
Value7.11210514719090543
Percentage of DistributionMadeToLimitedLiabilityCompanyLLCMemberNonCashDistributionsPaid1.719.457.721.316.61060.0

atus:FinanceAndOperatingLeaseLesseeExpense

atus:FinanceAndOperatingLeaseLesseeExpense


Finance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value29272625232019181617
Percentage of FinanceAndOperatingLeaseLesseeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

atus:FinanceLeaseCost

atus:FinanceLeaseCost


Finance
Period End2021-06-302021-03-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value14138.4375.4874.4573.0582.0181.92
Percentage of FinanceLeaseCost100.0100.0100.0100.0100.0100.0100.0100.0

atus:GainLossonInvestmentsAndSaleOfAffiliatedInterests

atus:GainLossonInvestmentsAndSaleOfAffiliatedInterests


Gain
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
Value12573263314197-455.473-4.718120103254-68.846111-45.113-248.602
Percentage of GainLossonInvestmentsAndSaleOfAffiliatedInterests100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

atus:GainLossonInvestmentsAndSaleOfAffiliatedInterests dei:LegalEntity

atus:CSCHoldings


Gain
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value12573263313197-455.819-4.718120103254
Percentage of GainLossonInvestmentsAndSaleOfAffiliatedInterests100.0100.0100.099.9100.0100.1100.0100.0100.0100.0

atus:NonCashContributionsDistributionsFromParent dei:LegalEntity

atus:NonCashContributionsDistributionsFromParent

atus:CSCHoldings


Non
Period End2020-09-302020-06-302020-03-31
Value5235-150.602
Percentage of NonCashContributionsDistributionsFromParent100.0100.0100.0

atus:NonCashContributionsDistributionsFromParent dei:LegalEntity, us-gaap:StatementEquityComponents

atus:CSCHoldings, us-gaap:AdditionalPaidInCapital


Non
Period End2020-09-302020-06-302020-03-31
Value5235-150.602
Percentage of NonCashContributionsDistributionsFromParent100.0100.0100.0

atus:CSCHoldings, us-gaap:Parent


Non
Period End2020-09-302020-06-302020-03-31
Value5235-150.602
Percentage of NonCashContributionsDistributionsFromParent100.0100.0100.0

atus:NonCashContributionsFromParent dei:LegalEntity

atus:NonCashContributionsFromParent

atus:CSCHoldings


Non
Period End2021-03-312020-06-302020-03-31
Value0.74535-150.602
Percentage of NonCashContributionsFromParent100.0100.0100.0

atus:NonCashDistributionsToParent dei:LegalEntity

atus:NonCashDistributionsToParent

atus:CSCHoldings


Non
Period End2021-06-302021-03-312020-03-31
Value190.748150
Percentage of NonCashDistributionsToParent100.0100.0100.0

atus:NonCashDistributionsToParent dei:LegalEntity, us-gaap:StatementEquityComponents

atus:CSCHoldings, us-gaap:AdditionalPaidInCapital


Non
Period End2021-06-302021-03-312020-06-302020-03-31
Value190.748-35.415150
Percentage of NonCashDistributionsToParent100.0100.00.0100.0

atus:CSCHoldings, us-gaap:Parent


Non
Period End2021-06-302021-03-31
Value190.748
Percentage of NonCashDistributionsToParent100.0100.0

atus:NoncashContributionFromParent

atus:NoncashContributionFromParent


Noncash
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-06-302019-03-31
Value190.745-52.421-35.4151500.00.0
Percentage of NoncashContributionFromParent100.0100.0100.0100.0100.00.00.0

atus:OperatingLeaseExpenseNet

atus:OperatingLeaseExpenseNet


Operating
Period End2021-06-302021-03-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1414141515151415
Percentage of OperatingLeaseExpenseNet100.0100.0100.0100.0100.0100.0100.0100.0

atus:OtherComprehensiveIncomeLossAmortizationofActuarialGainsLossesandSettlementGainsLossesIncludedinNetPeriodicPensionCost dei:LegalEntity

atus:OtherComprehensiveIncomeLossAmortizationofActuarialGainsLossesandSettlementGainsLossesIncludedinNetPeriodicPensionCost

atus:CSCHoldings


Other
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value122000.0271000.0502000.0103000.01091000.0367000.0171000.0
Percentage of OtherComprehensiveIncomeLossAmortizationofActuarialGainsLossesandSettlementGainsLossesIncludedinNetPeriodicPensionCost100.0100.0100.0100.0100.0100.0100.0

atus:OtherComprehensiveIncomeLossDefinedBenefitPlanAdjustmentforSettlementGainLossTax

atus:OtherComprehensiveIncomeLossDefinedBenefitPlanAdjustmentforSettlementGainLossTax


Other
Period End2021-06-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-175000.072000.0134000.00295000.0101000.045000.090000.018000.070000.0164000.0
Percentage of OtherComprehensiveIncomeLossDefinedBenefitPlanAdjustmentforSettlementGainLossTax100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0

atus:OtherComprehensiveIncomeLossDefinedBenefitPlanAdjustmentforSettlementGainLossTax dei:LegalEntity

atus:CSCHoldings


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-175000.0-198000.0-72000.039000.072000.0134000.00295000.0101000.045000.0
Percentage of OtherComprehensiveIncomeLossDefinedBenefitPlanAdjustmentforSettlementGainLossTax100.00.00.00.0100.0100.00.0100.0100.0100.0

atus:OtherComprehensiveIncomeLossDefinedBenefitPlanSettlementGainLossAfterTax

atus:OtherComprehensiveIncomeLossDefinedBenefitPlanSettlementGainLossAfterTax


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-472000.0-550000.0-200000.083000.0199000.0368000.014000.0796000.0266000.0126000.0249000.047000.0188000.0442000.0
Percentage of OtherComprehensiveIncomeLossDefinedBenefitPlanSettlementGainLossAfterTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

atus:OtherComprehensiveIncomeLossDefinedBenefitPlanSettlementGainLossAfterTax dei:LegalEntity

atus:CSCHoldings


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-472000.0-550000.0-200000.083000.0199000.0368000.014000.0796000.0266000.0126000.0
Percentage of OtherComprehensiveIncomeLossDefinedBenefitPlanSettlementGainLossAfterTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

atus:OtherComprehensiveIncomeLossDefinedBenefitPlanSettlementGainLossBeforeTax

atus:OtherComprehensiveIncomeLossDefinedBenefitPlanSettlementGainLossBeforeTax


Other
Period End2021-06-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-647000.0271000.0502000.014000.01091000.0367000.0171000.0339000.065000.0258000.0606000.0
Percentage of OtherComprehensiveIncomeLossDefinedBenefitPlanSettlementGainLossBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

atus:OtherComprehensiveIncomeLossDefinedBenefitPlanSettlementGainLossBeforeTax dei:LegalEntity

atus:CSCHoldings


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-647000.0-748000.0-272000.0122000.0271000.0502000.014000.01091000.0367000.0171000.0
Percentage of OtherComprehensiveIncomeLossDefinedBenefitPlanSettlementGainLossBeforeTax100.00.00.00.0100.0100.0100.0100.0100.0100.0

atus:OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansPlanAmendmentsNetOfTax

atus:OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansPlanAmendmentsNetOfTax


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value-1.088-6.356-3.894-1.5769.503-10.766-6.0193.7527.057-0.0743.765
Percentage of OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansPlanAmendmentsNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

atus:OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansPlanAmendmentsNetOfTax dei:LegalEntity

atus:CSCHoldings


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value-1.088-6.3563.8941.576-9.503106.019-3.752
Percentage of OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansPlanAmendmentsNetOfTax100.0100.0-100.0-100.0-100.0-100.0-100.0-100.0

atus:OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansPlanAmendmentsNetOfTax dei:LegalEntity, us-gaap:StatementEquityComponents

atus:CSCHoldings, us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value-1.088-6.3563.8941.576-9.503106.019-3.752
Percentage of OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansPlanAmendmentsNetOfTax100.0100.0-100.0-100.0-100.0-100.0-100.0-100.0

atus:CSCHoldings, us-gaap:Parent


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value-1.088-6.3563.8941.576-9.503106.019-3.752
Percentage of OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansPlanAmendmentsNetOfTax100.0100.0-100.0-100.0-100.0-100.0-100.0-100.0

atus:OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansPlanAmendmentsNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-03-31
Value1.0886.356-3.894-1.5769.503-10.766-6.0193.7523.765
Percentage of OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansPlanAmendmentsNetOfTax-100.0-100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Parent


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-03-31
Value-1.088-6.356-3.894-1.5769.503-10.766-6.0193.7523.765
Percentage of OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansPlanAmendmentsNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0

atus:PerformanceStockUnitsAndRestrictedStockWhosePerformanceMetricsHaveNotBeenMetAndAreNotIncludedInDilutedWeightedAverageSharesOutstanding

atus:PerformanceStockUnitsAndRestrictedStockWhosePerformanceMetricsHaveNotBeenMetAndAreNotIncludedInDilutedWeightedAverageSharesOutstanding


Performance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-09-302019-06-30
Value8747000.08748000.0169000.08893000.08943000.08981000.057000.00
Percentage of PerformanceStockUnitsAndRestrictedStockWhosePerformanceMetricsHaveNotBeenMetAndAreNotIncludedInDilutedWeightedAverageSharesOutstanding100.0100.0100.0100.0100.0100.0100.00.0

atus:ProceedsRelatedToSaleOfEquipmentAndCostsAndDisposal

atus:ProceedsRelatedToSaleOfEquipmentAndCostsAndDisposal


Proceeds
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value1500000.0734000.0-2580000.03586000.0419000.0479000.0
Percentage of ProceedsRelatedToSaleOfEquipmentAndCostsAndDisposal100.0100.0100.0100.0100.0100.0

atus:ProceedsRelatedToSaleOfEquipmentAndCostsAndDisposal dei:LegalEntity

atus:CSCHoldings


Proceeds
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value1500000.0734000.0-2580000.03586000.0419000.0479000.0
Percentage of ProceedsRelatedToSaleOfEquipmentAndCostsAndDisposal100.0100.0100.0100.0100.0100.0

atus:ReevaluationOfDeferredTaxLiabilityRelatingToStateTaxIncrease

atus:ReevaluationOfDeferredTaxLiabilityRelatingToStateTaxIncrease


Reevaluation
Period End2020-09-30
Value16
Percentage of ReevaluationOfDeferredTaxLiabilityRelatingToStateTaxIncrease100.0

atus:RelatedPartyTransactionCostandExpenses

atus:RelatedPartyTransactionCostandExpenses


Related
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value7.25.4079.1526.0343.8996.136.7855.114.1073.9331.7242.576109.1483329388.0337.1038.6982.5
Percentage of RelatedPartyTransactionCostandExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

atus:RelatedPartyTransactionOtherOperatingExpense

atus:RelatedPartyTransactionOtherOperatingExpense


Related
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value2.6963.1793.3542.4132.1613.9412.4871.6022.022.2461.1530.9056.2557.9943228377.2985.7988.0562.5
Percentage of RelatedPartyTransactionOtherOperatingExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

atus:RelatedPartyTransactionProgrammingandOtherDirectCosts

atus:RelatedPartyTransactionProgrammingandOtherDirectCosts


Related
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value4.5042.2285.7983.6211.7382.1894.2983.5082.0871.6870.5711.6713.8651.1541.151.1961.0950.7351.3050.6420.0
Percentage of RelatedPartyTransactionProgrammingandOtherDirectCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

atus:RestructuringExpenseRelatingToRightOfUseOperatingLeases

atus:RestructuringExpenseRelatingToRightOfUseOperatingLeases


Restructuring
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value2.5820.4051.492260.6111.7053.3910.0730.147
Percentage of RestructuringExpenseRelatingToRightOfUseOperatingLeases100.0100.0100.0100.0100.0100.0100.0100.0100.0

atus:RestructuringandOtherExpense

atus:RestructuringandOtherExpense


Restructuringand
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value5.8643.2092.39440407.294331211158.683169.6913.5879.636531276854799
Percentage of RestructuringandOtherExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

atus:RestructuringandOtherExpense dei:LegalEntity

atus:CSCHoldings


Restructuringand
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value5.8643.2092.39440407.29433121115
Percentage of RestructuringandOtherExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

atus:RetirementOfTreasuryStockInConnectionWithNeptuneAcquisition us-gaap:StatementClassOfStock, us-gaap:StatementEquityComponents

atus:RetirementOfTreasuryStockInConnectionWithNeptuneAcquisition

us-gaap:CommonClassA, us-gaap:CommonStock


Retirement
Period End2021-06-30
Value-0.059
Percentage of RetirementOfTreasuryStockInConnectionWithNeptuneAcquisition100.0

atus:RetirementOfTreasuryStockInConnectionWithNeptuneAcquisition us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Retirement
Period End2021-06-30
Value-154.436
Percentage of RetirementOfTreasuryStockInConnectionWithNeptuneAcquisition261755.9

us-gaap:TreasuryStock


Retirement
Period End2021-06-30
Value154
Percentage of RetirementOfTreasuryStockInConnectionWithNeptuneAcquisition-261855.9

atus:StateTaxBenefitFromDecouplingTheCARESAct

atus:StateTaxBenefitFromDecouplingTheCARESAct


State
Period End2020-09-30
Value8000000.0
Percentage of StateTaxBenefitFromDecouplingTheCARESAct100.0

atus:TotalFinanceLeaseExpense

atus:TotalFinanceLeaseExpense


Total
Period End2020-09-302019-09-30
Value103.058
Percentage of TotalFinanceLeaseExpense100.0100.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalIncreaseInCarryingAmountOfRedeemablePreferredStock

us-gaap:AdjustmentsToAdditionalPaidInCapitalIncreaseInCarryingAmountOfRedeemablePreferredStock


Adjustments
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value0.514-2.5285.7348.764-13.26514661-4.755-22.528-47.0493.347-158.97925
Percentage of AdjustmentsToAdditionalPaidInCapitalIncreaseInCarryingAmountOfRedeemablePreferredStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalIncreaseInCarryingAmountOfRedeemablePreferredStock dei:LegalEntity

atus:CSCHoldings


Adjustments
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value0.514-2.5285.7348.764-13.26514661
Percentage of AdjustmentsToAdditionalPaidInCapitalIncreaseInCarryingAmountOfRedeemablePreferredStock100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalIncreaseInCarryingAmountOfRedeemablePreferredStock dei:LegalEntity, us-gaap:StatementEquityComponents

atus:CSCHoldings, us-gaap:AdditionalPaidInCapital


Adjustments
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value0.514-2.5285.7348.764-13.26514661
Percentage of AdjustmentsToAdditionalPaidInCapitalIncreaseInCarryingAmountOfRedeemablePreferredStock100.0100.0100.0100.0100.0100.0100.0100.0

atus:CSCHoldings, us-gaap:Parent


Adjustments
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value0.514-2.5285.7348.764-13.26514661
Percentage of AdjustmentsToAdditionalPaidInCapitalIncreaseInCarryingAmountOfRedeemablePreferredStock100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalIncreaseInCarryingAmountOfRedeemablePreferredStock us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Adjustments
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value5.7348.764-13.26514661-4.755-22.528-47.0493.347-158.97925
Percentage of AdjustmentsToAdditionalPaidInCapitalIncreaseInCarryingAmountOfRedeemablePreferredStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Parent


Adjustments
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value0.514-2.5285.7348.764-13.26514661-4.755-22.528-47.0493.347-158.97925
Percentage of AdjustmentsToAdditionalPaidInCapitalIncreaseInCarryingAmountOfRedeemablePreferredStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RetainedEarnings


Adjustments
Period End2021-06-302021-03-31
Value0.514-2.528
Percentage of AdjustmentsToAdditionalPaidInCapitalIncreaseInCarryingAmountOfRedeemablePreferredStock100.0100.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalOther

us-gaap:AdjustmentsToAdditionalPaidInCapitalOther


Adjustments
Period End2021-06-302021-03-312018-12-312018-09-302018-06-302018-03-31
Value168000.058000.0000-859000.0
Percentage of AdjustmentsToAdditionalPaidInCapitalOther100.0100.00.00.00.0100.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalOther us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest


Adjustments
Period End2021-06-302020-06-302020-03-31
Value76000.04302000.04302000.0
Percentage of AdjustmentsToAdditionalPaidInCapitalOther45.20.00.0

us-gaap:Parent


Adjustments
Period End2021-06-302021-03-312018-12-312018-09-302018-06-302018-03-31
Value92000.0-4244000.0000-859000.0
Percentage of AdjustmentsToAdditionalPaidInCapitalOther54.8-7317.20.00.00.0100.0

us-gaap:RetainedEarnings


Adjustments
Period End2021-06-302021-03-312018-09-302018-06-302018-03-31
Value92000.0-4244000.0000
Percentage of AdjustmentsToAdditionalPaidInCapitalOther54.8-7317.20.00.0-0.0

us-gaap:AmortizationOfFinancingCostsAndDiscounts

us-gaap:AmortizationOfFinancingCostsAndDiscounts


Amortization
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value222321212423232827262423201612115.4021.8121.9685.296
Percentage of AmortizationOfFinancingCostsAndDiscounts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AmortizationOfFinancingCostsAndDiscounts dei:LegalEntity

atus:CSCHoldings


Amortization
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value22232121242322232321
Percentage of AmortizationOfFinancingCostsAndDiscounts100.0100.0100.0100.0100.0100.093.283.383.382.8

us-gaap:BusinessCombinationAcquisitionRelatedCosts

us-gaap:BusinessCombinationAcquisitionRelatedCosts


Business
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value0.5730.624-2.1993.9470.0880.4893.2230.9870.574-0.3963.4962.2660.7921.3670.1420.1780.563.1779.979
Percentage of BusinessCombinationAcquisitionRelatedCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BusinessCombinationConsiderationTransferred1 us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationConsiderationTransferred1

atus:LightpathAcquiredAssets


Business
Period End2021-06-30
Value28
Percentage of BusinessCombinationConsiderationTransferred1100.0

atus:NewJerseyCableAssets


Business
Period End2020-07-14
Value150
Percentage of BusinessCombinationConsiderationTransferred10.0

atus:NorthCarolinaAssets


Business
Period End2021-04-06
Value312
Percentage of BusinessCombinationConsiderationTransferred10.0

us-gaap:BusinessCombinationConsiderationTransferred1 us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType

atus:NorthCarolinaAssets, us-gaap:SubsequentEvent


Business
Period End2021-04-06
Value310
Percentage of BusinessCombinationConsiderationTransferred10.0

us-gaap:CapitalExpendituresIncurredButNotYetPaid

us-gaap:CapitalExpendituresIncurredButNotYetPaid


Capital
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value-22.832266-11.2477.723-9.685219-18.775-38.85871584745299186-2.156256171-31.429
Percentage of CapitalExpendituresIncurredButNotYetPaid100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value0.889-58.471-704.995-967.4981708-456.9815273616-175.528-187.021104-1046.4071097-321.755-29.977137-14.819-1465.8251369
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect dei:LegalEntity

atus:CSCHoldings


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1.034-58.344-705.399-967.5641709-453.8225233715-175.322
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect116.399.8100.1100.0100.199.399.3101.194.299.9

us-gaap:DistributionMadeToLimitedLiabilityCompanyLLCMemberCashDistributionsPaid dei:LegalEntity, us-gaap:StatementEquityComponents

us-gaap:DistributionMadeToLimitedLiabilityCompanyLLCMemberCashDistributionsPaid

atus:CSCHoldings, us-gaap:Parent


Distribution
Period End2020-09-30
Value431
Percentage of DistributionMadeToLimitedLiabilityCompanyLLCMemberCashDistributionsPaid100.0

us-gaap:DividendsCash dei:LegalEntity

us-gaap:DividendsCash

atus:CSCHoldings


Dividends
Period End2021-06-302021-03-312020-09-302020-06-302020-03-31
Value184501431652720
Percentage of DividendsCash100.0100.0100.0100.0100.0

us-gaap:DividendsCash dei:LegalEntity, us-gaap:StatementEquityComponents

atus:CSCHoldings, us-gaap:AdditionalPaidInCapital


Dividends
Period End2021-06-302021-03-312020-06-302020-03-31
Value184501652696
Percentage of DividendsCash100.0100.0100.096.6

atus:CSCHoldings, us-gaap:Parent


Dividends
Period End2021-06-302021-03-312020-09-302020-06-302020-03-31
Value184501431652720
Percentage of DividendsCash100.0100.0100.0100.0100.0

us-gaap:EffectOfExchangeRateOnCashAndCashEquivalents

us-gaap:EffectOfExchangeRateOnCashAndCashEquivalents


Effect
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value-141000.0620000.0-644000.0-583000.0-516000.0-424000.0-201000.0-385000.0-335000.0-245000.0-402000.0480000.0-104000.0000
Percentage of EffectOfExchangeRateOnCashAndCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0

us-gaap:EffectOfExchangeRateOnCashAndCashEquivalents dei:LegalEntity

atus:CSCHoldings


Effect
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-141000.0620000.0-644000.0-583000.0-516000.0-424000.0-201000.0-385000.0-335000.0-245000.0
Percentage of EffectOfExchangeRateOnCashAndCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeaseInterestExpense

us-gaap:FinanceLeaseInterestExpense


Finance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value2121000.02101000.02000000.01820000.01477000.01027000.0840000.0520000.0388000.0358000.0
Percentage of FinanceLeaseInterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeaseInterestPaymentOnLiability

us-gaap:FinanceLeaseInterestPaymentOnLiability


Finance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value2121000.02101000.02000000.01820000.01477000.01027000.0840000.0520000.0388000.0358000.0
Percentage of FinanceLeaseInterestPaymentOnLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeaseRightOfUseAssetAmortization

us-gaap:FinanceLeaseRightOfUseAssetAmortization


Finance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value12119.8058.8986.964.463.6172.5381.631.562
Percentage of FinanceLeaseRightOfUseAssetAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GainLossOnInterestRateDerivativeInstrumentsNotDesignatedAsHedgingInstruments

us-gaap:GainLossOnInterestRateDerivativeInstrumentsNotDesignatedAsHedgingInstruments


Gain
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value-21.5747510-0.158-33.735-54.8327.833-11.163-26.9-23.6722.708-19.554-12.929-31.922-7.0571.0519.1462.342-97.341-15.86140
Percentage of GainLossOnInterestRateDerivativeInstrumentsNotDesignatedAsHedgingInstruments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GainLossOnInterestRateDerivativeInstrumentsNotDesignatedAsHedgingInstruments dei:LegalEntity

atus:CSCHoldings


Gain
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-21.5747510-0.158-33.735-54.8327.833-11.163-26.9-23.672
Percentage of GainLossOnInterestRateDerivativeInstrumentsNotDesignatedAsHedgingInstruments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GainLossOnPriceRiskDerivativeInstrumentsNotDesignatedAsHedgingInstruments

us-gaap:GainLossOnPriceRiskDerivativeInstrumentsNotDesignatedAsHedgingInstruments


Gain
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value-98.84-53.565-204.467-261.597-152.06143921-77.333-49.624-177.02987-79.62842168-82.06-16.763-66.463-71.044-27.1240.773-27.345
Percentage of GainLossOnPriceRiskDerivativeInstrumentsNotDesignatedAsHedgingInstruments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GainLossOnPriceRiskDerivativeInstrumentsNotDesignatedAsHedgingInstruments dei:LegalEntity

atus:CSCHoldings


Gain
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-98.84-53.565-204.467-261.597-152.06143921-77.333-49.624-177.029
Percentage of GainLossOnPriceRiskDerivativeInstrumentsNotDesignatedAsHedgingInstruments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GainLossOnPriceRiskDerivativeInstrumentsNotDesignatedAsHedgingInstruments us-gaap:DebtInstrument

atus:MonetizationContracts


Gain
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-98.84-204.467-261.597-152.06143921-77.333-49.624-177.029
Percentage of GainLossOnPriceRiskDerivativeInstrumentsNotDesignatedAsHedgingInstruments100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GoodwillAcquiredDuringPeriod us-gaap:BusinessAcquisition

us-gaap:GoodwillAcquiredDuringPeriod

atus:NewJerseyCableAssets


Goodwill
Period End2020-07-14
Value18
Percentage of GoodwillAcquiredDuringPeriod100.0

us-gaap:IncreaseDecreaseDueFromAffiliates

us-gaap:IncreaseDecreaseDueFromAffiliates


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value-1.878-4.627-0.217-1.7892.306-3.8941.6682.907-0.7414.023-3.8461.37-10.0381.465-64.47-16.944-17.18131-41.5643.913
Percentage of IncreaseDecreaseDueFromAffiliates100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseDueFromAffiliates dei:LegalEntity

atus:CSCHoldings


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value17-3.882-241.451-53.75-32.893147-264.8253.24-1.04414
Percentage of IncreaseDecreaseDueFromAffiliates-947.083.9111267.73004.5-1426.4-3779.7-15876.8111.5140.9365.7

us-gaap:IncreaseDecreaseInAccruedLiabilities

us-gaap:IncreaseDecreaseInAccruedLiabilities


Increase
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value-118.435175-188.7653419136-235.36967-87.969114-224.78759-55.225-15.605-253.707209-175.373
Percentage of IncreaseDecreaseInAccruedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInAccruedLiabilities dei:LegalEntity

atus:CSCHoldings


Increase
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-118.432175-188.76206-135.792142-240.722
Percentage of IncreaseDecreaseInAccruedLiabilities100.0100.0100.0596.0-687.4103.8102.3

us-gaap:IncreaseDecreaseInDeferredRevenue

us-gaap:IncreaseDecreaseInDeferredRevenue


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value-32.71938-25.0692.394-12.149-5.15319-42.0423.1078.91516358.607112.928-1.232-0.643110.2866.076
Percentage of IncreaseDecreaseInDeferredRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInDeferredRevenue dei:LegalEntity

atus:CSCHoldings


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-32.71938-25.0692.394-12.149-5.15319-42.0423.1078.915
Percentage of IncreaseDecreaseInDeferredRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInDerivativeLiabilities

us-gaap:IncreaseDecreaseInDerivativeLiabilities


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value10-89.798-34.228-9.73425122-19.678.6861625-9.4481713318.631-1.052-6.158-2.34210315
Percentage of IncreaseDecreaseInDerivativeLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInDerivativeLiabilities dei:LegalEntity

atus:CSCHoldings


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value10-89.798-34.228-9.73425122-19.678.6861625
Percentage of IncreaseDecreaseInDerivativeLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInIncomeTaxesReceivable

us-gaap:IncreaseDecreaseInIncomeTaxesReceivable


Increase
Period End2020-12-31
Value0.161
Percentage of IncreaseDecreaseInIncomeTaxesReceivable100.0

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value-57.95226-14.3060.399-26.26531555.465353.744-27.0019.93941-9.60919-8.3041110-29.253-92.654
Percentage of IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets dei:LegalEntity

atus:CSCHoldings


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-58.16526-14.304-3.263-22.6033156-29.1565219
Percentage of IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets100.4100.0100.0-817.886.1100.0102.6-533.5147.8529.9

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements


Incremental
Period End2021-06-302021-03-312020-06-30
Value6681000.06170000.01857000.0
Percentage of IncrementalCommonSharesAttributableToShareBasedPaymentArrangements100.0100.0100.0

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements us-gaap:AwardType

atus:RestrictedStockAward


Incremental
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-312019-09-302019-06-30
Value1000.045000.0-2000.0-1000.022000.0806000.08000.051000.0
Percentage of IncrementalCommonSharesAttributableToShareBasedPaymentArrangements0.00.70.00.01.20.00.00.0

us-gaap:StockOption


Incremental
Period End2020-09-302020-06-302019-09-302019-06-30
Value121000.01857000.02201000.0566000.0
Percentage of IncrementalCommonSharesAttributableToShareBasedPaymentArrangements0.0100.00.00.0

us-gaap:InvestmentIncomeInterest

us-gaap:InvestmentIncomeInterest


Investment
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value0.0640.0270.220.1640.1511.6591.7611.5240.6051.8191.0131.4275.3133.1030.5480.9610.180.2321.0240.4045.968
Percentage of InvestmentIncomeInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InvestmentIncomeInterest dei:LegalEntity

atus:CSCHoldings


Investment
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value0.0640.0270.220.1640.1511.6591.7611.5240.6051.819
Percentage of InvestmentIncomeInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LineOfCreditFacilityPeriodicPayment us-gaap:CreditFacility, us-gaap:DebtInstrument

us-gaap:LineOfCreditFacilityPeriodicPayment

us-gaap:SecuredDebt, atus:CablevisionLightpathTermBLoan


Line
Period End2020-09-30
Value1500000.0
Percentage of LineOfCreditFacilityPeriodicPayment100.0

us-gaap:NotesIssued1

us-gaap:NotesIssued1


Notes
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value74110.00.018-0.06216455.314143014250.00.0120.0
Percentage of NotesIssued1100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.00.0

us-gaap:OperatingLeasePayments

us-gaap:OperatingLeasePayments


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value14151615151616161516
Percentage of OperatingLeasePayments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingLeasesRentExpenseNet

us-gaap:OperatingLeasesRentExpenseNet


Operating
Period End2020-09-302019-09-30
Value1415
Percentage of OperatingLeasesRentExpenseNet100.0100.0

us-gaap:OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax

us-gaap:OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value1560000.06906000.013296000.03809000.01377000.0-9871000.022651000.0-11562000.0-6285000.03626000.010681000.0-7010000.0-262000.03323000.0-6158000.0-2434000.0-2600000.00-350000.03010000.0-589000.0
Percentage of OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax dei:LegalEntity

atus:CSCHoldings


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1560000.06906000.013296000.03809000.01377000.0-9871000.022651000.0-11562000.0-6285000.03626000.0
Percentage of OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax

us-gaap:OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax


Other
Period End2021-06-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value579000.0503000.0-3598000.08931000.0-4298000.0-2282000.01292000.03943000.0-2592000.0-97000.01228000.0-4085000.0-1622000.0-1733000.00-232000.02006000.0-393000.0
Percentage of OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax dei:LegalEntity

atus:CSCHoldings


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value579000.02490000.04820000.01374000.0503000.0-3598000.08931000.0-4298000.0-2282000.01292000.0
Percentage of OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax100.00.00.00.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax


Other
Period End2021-06-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-140000.0-517000.0-424000.0-199000.0-385000.0-336000.0-245000.0-384000.0437000.0914000.00
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax dei:LegalEntity

atus:CSCHoldings


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-140000.0619000.0-644000.0-582000.0-517000.0-424000.0-199000.0-385000.0-336000.0-245000.0
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax100.00.00.00.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax


Other
Period End2021-06-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value2.1391.88-13.46931-15.86-8.5674.91814-9.602-0.3594.551-10.243-4.056-4.3330.0-0.5825.016-0.982
Percentage of OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax dei:LegalEntity

atus:CSCHoldings


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value2.1399.396185.1831.88-13.46931-15.86-8.5674.918
Percentage of OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax100.00.00.00.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherCostAndExpenseOperating

us-gaap:OtherCostAndExpenseOperating


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value589580581558542582598568569564562569575583575560593608655660214
Percentage of OtherCostAndExpenseOperating100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherCostAndExpenseOperating dei:LegalEntity

atus:CSCHoldings


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value589580581558542582598568569564
Percentage of OtherCostAndExpenseOperating100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherOperatingActivitiesCashFlowStatement

us-gaap:OtherOperatingActivitiesCashFlowStatement


Other
Period End2021-06-302021-03-312020-06-302020-03-31
Value3.271.0741.3071.849
Percentage of OtherOperatingActivitiesCashFlowStatement100.0100.0100.0100.0

us-gaap:OtherOperatingActivitiesCashFlowStatement dei:LegalEntity

atus:CSCHoldings


Other
Period End2021-06-302021-03-312020-06-302020-03-31
Value3.271.0741.3071.849
Percentage of OtherOperatingActivitiesCashFlowStatement100.0100.0100.0100.0

us-gaap:PaymentForContingentConsiderationLiabilityFinancingActivities

us-gaap:PaymentForContingentConsiderationLiabilityFinancingActivities


Payment
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value0.00.00.04.9470.00.00.00.50.01.060.0280.00.0
Percentage of PaymentForContingentConsiderationLiabilityFinancingActivities0.00.00.0100.00.00.00.0100.00.0100.00.0100.00.00.0

us-gaap:PaymentForContingentConsiderationLiabilityFinancingActivities dei:LegalEntity

atus:CSCHoldings


Payment
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value0.00.00.04.9470.00.00.00.5
Percentage of PaymentForContingentConsiderationLiabilityFinancingActivities0.00.00.0100.00.00.00.0100.0

us-gaap:PaymentsForProceedsFromInvestments

us-gaap:PaymentsForProceedsFromInvestments


Payments
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-1460000.00-4008000.0-354000.0000-11827000.0002500000.0
Percentage of PaymentsForProceedsFromInvestments100.00.0100.0100.00.00.00.0100.00.00.0100.0

us-gaap:PaymentsForProceedsFromInvestments dei:LegalEntity

atus:CSCHoldings


Payments
Period End2020-09-30
Value2402000.0
Percentage of PaymentsForProceedsFromInvestments-164.5

us-gaap:PaymentsForProceedsFromOtherInvestingActivities

us-gaap:PaymentsForProceedsFromOtherInvestingActivities


Payments
Period End2021-06-302021-03-312020-06-302020-03-31
Value3217000.0-2143000.0-586000.0-1339000.0
Percentage of PaymentsForProceedsFromOtherInvestingActivities100.0100.0100.0100.0

us-gaap:PaymentsForProceedsFromOtherInvestingActivities dei:LegalEntity

atus:CSCHoldings


Payments
Period End2021-06-302021-03-312020-06-302020-03-31
Value3217000.0-2143000.0-4248000.02669000.0
Percentage of PaymentsForProceedsFromOtherInvestingActivities100.0100.0724.9-199.3

us-gaap:PaymentsForRestructuring

us-gaap:PaymentsForRestructuring


Payments
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value0.9190.6711.12.3522.4115.2418.081142728424031
Percentage of PaymentsForRestructuring100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsForRestructuring us-gaap:RestructuringCostAndReserve

atus:FacilityRealignmentAndOtherCosts2016Plan


Payments
Period End2020-12-31
Value0.919
Percentage of PaymentsForRestructuring100.0

us-gaap:EmployeeSeverance


Payments
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value0.00.0370.2011.4381.4434.1926.883132427383830
Percentage of PaymentsForRestructuring0.05.518.361.159.980.085.296.390.595.289.694.695.4

us-gaap:PaymentsForRestructuring us-gaap:RestructuringCostAndReserve, us-gaap:RestructuringPlan

us-gaap:EmployeeSeverance, atus:A2019Restructuring


Payments
Period End2020-12-312020-09-302020-06-302020-03-312019-12-31
Value6.8429.4319.3788.8084.133
Percentage of PaymentsForRestructuring744.51405.5852.5374.5171.4

us-gaap:PaymentsOfFinancingCosts

us-gaap:PaymentsOfFinancingCosts


Payments
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value348.3235.8940.07.5763.5190.81116.898-0.7073.05219-0.8862.1346.0621.2910181
Percentage of PaymentsOfFinancingCosts100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsOfFinancingCosts dei:LegalEntity

atus:CSCHoldings


Payments
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value348.3235.8940.07.5763.5190.8111
Percentage of PaymentsOfFinancingCosts100.0100.0100.00.0100.0100.0100.0100.0

us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired

us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired


Payments
Period End2020-12-312020-09-302019-12-312019-09-302018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value-0.142150-0.390.00.05.445-23.632283.0950.00.0430.00.0
Percentage of PaymentsToAcquireBusinessesNetOfCashAcquired100.0100.0100.00.00.0100.0100.0100.0100.00.00.0100.00.00.0

us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired dei:LegalEntity

atus:CSCHoldings


Payments
Period End2020-12-312020-09-302019-12-312019-09-30
Value-0.142150-0.390.0
Percentage of PaymentsToAcquireBusinessesNetOfCashAcquired100.0100.0100.00.0

us-gaap:PaymentsToAcquireIntangibleAssets

us-gaap:PaymentsToAcquireIntangibleAssets


Payments
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value58000.0148000.089000.0102000.03102000.0867000.000584000.0007000.0956000.0561000.0183000.0106000.00
Percentage of PaymentsToAcquireIntangibleAssets100.0100.0100.0100.0100.0100.00.00.0100.00.00.0100.0100.0100.0100.0100.00.0

us-gaap:PaymentsToAcquireIntangibleAssets dei:LegalEntity

atus:CSCHoldings


Payments
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value58000.0148000.089000.0102000.03102000.0867000.00
Percentage of PaymentsToAcquireIntangibleAssets100.0100.0100.0100.0100.0100.00.0

us-gaap:ProceedsFromIssuanceOfSecuredDebt

us-gaap:ProceedsFromIssuanceOfSecuredDebt


Proceeds
Period End2021-06-302021-03-312019-12-312019-09-302018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value0.0185930.00.01793370.01761713341560.0179
Percentage of ProceedsFromIssuanceOfSecuredDebt0.0100.0100.00.00.0100.0100.00.0100.0100.0100.0100.00.0100.0

us-gaap:ProceedsFromIssuanceOfSecuredDebt dei:LegalEntity

atus:CSCHoldings


Proceeds
Period End2021-06-302021-03-31
Value0.0185
Percentage of ProceedsFromIssuanceOfSecuredDebt0.0100.0

us-gaap:ProceedsFromIssuanceOfSecuredDebt us-gaap:DerivativeInstrumentRisk

atus:ComcastSyntheticMonetizationCloseout


Proceeds
Period End2021-06-302021-03-31
Value0.0185
Percentage of ProceedsFromIssuanceOfSecuredDebt0.0100.0

us-gaap:ProceedsFromIssuanceOfSeniorLongTermDebt

us-gaap:ProceedsFromIssuanceOfSeniorLongTermDebt


Proceeds
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value362017250.0130010000.017540.00.0105010000.00.00.00.00.01310
Percentage of ProceedsFromIssuanceOfSeniorLongTermDebt100.0100.00.0100.0100.00.0100.00.00.0100.0100.00.00.00.00.00.0100.0

us-gaap:ProceedsFromIssuanceOfSeniorLongTermDebt dei:LegalEntity

atus:CSCHoldings


Proceeds
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value362017250.0130010000.01754
Percentage of ProceedsFromIssuanceOfSeniorLongTermDebt100.0100.00.0100.0100.00.0100.0

us-gaap:ProceedsFromLinesOfCredit

us-gaap:ProceedsFromLinesOfCredit


Proceeds
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value30101506502000.03000100550139012715750.01642-8.7562547522253315375
Percentage of ProceedsFromLinesOfCredit100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromLinesOfCredit dei:LegalEntity

atus:CSCHoldings


Proceeds
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value30101506502000.030001005501390
Percentage of ProceedsFromLinesOfCredit100.0100.0100.0100.00.0100.0100.0100.0100.0

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities


Proceeds
Period End2021-06-302021-03-312020-06-302020-03-312019-12-312019-09-302018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value1732000.0-393000.0-10106000.02915000.000000-859000.00000
Percentage of ProceedsFromPaymentsForOtherFinancingActivities100.0100.0100.0100.00.00.00.00.00.0100.00.00.00.00.0

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities dei:LegalEntity

atus:CSCHoldings


Proceeds
Period End2021-06-302021-03-312020-06-302020-03-31
Value-10489000.01465000.0-15788000.04947000.0
Percentage of ProceedsFromPaymentsForOtherFinancingActivities-605.6-372.8156.2169.7

us-gaap:ProceedsFromRepaymentsOfNotesPayable

us-gaap:ProceedsFromRepaymentsOfNotesPayable


Proceeds
Period End2020-09-302019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value1.796-1.33327390.00.016-7.2586.8129.084240.00.00.0
Percentage of ProceedsFromRepaymentsOfNotesPayable100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.00.00.00.0

us-gaap:ProceedsFromRepaymentsOfNotesPayable dei:LegalEntity

atus:CSCHoldings


Proceeds
Period End2020-09-302019-12-312019-09-30
Value1.796-1.33327
Percentage of ProceedsFromRepaymentsOfNotesPayable100.0100.0100.0

us-gaap:ProceedsFromSaleOfInterestInPartnershipUnit

us-gaap:ProceedsFromSaleOfInterestInPartnershipUnit


Proceeds
Period End2020-07-30
Value2300
Percentage of ProceedsFromSaleOfInterestInPartnershipUnit100.0

us-gaap:ProceedsFromSaleOfInterestInPartnershipUnit us-gaap:SubsequentEventType

us-gaap:SubsequentEvent


Proceeds
Period End2020-07-30
Value2300
Percentage of ProceedsFromSaleOfInterestInPartnershipUnit100.0

us-gaap:ProceedsFromStockOptionsExercised

us-gaap:ProceedsFromStockOptionsExercised


Proceeds
Period End2020-12-312020-09-30
Value8.6352.063
Percentage of ProceedsFromStockOptionsExercised100.0100.0

us-gaap:ProvisionForDoubtfulAccounts

us-gaap:ProvisionForDoubtfulAccounts


Provision
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value1711158.52621193026191520211513192117152019
Percentage of ProvisionForDoubtfulAccounts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProvisionForDoubtfulAccounts dei:LegalEntity

atus:CSCHoldings


Provision
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1711158.526211930261915
Percentage of ProvisionForDoubtfulAccounts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty

us-gaap:RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty


Related
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value4.1652.0015.4781.8460.522.6423.9695.043.6113.3411.1462.0319.2449.02333285955565567.805
Percentage of RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RelatedPartyTransactionPurchasesFromRelatedParty

us-gaap:RelatedPartyTransactionPurchasesFromRelatedParty


Related
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value9.589101.7384.5773.6767.2252.8213.4562.5363.3548.2723.9451.1081.6263572250.892450.00.0
Percentage of RelatedPartyTransactionPurchasesFromRelatedParty100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0

us-gaap:RepaymentsOfLinesOfCredit

us-gaap:RepaymentsOfLinesOfCredit


Repayments
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value28312254682181024897392413611585141061072611033901834806331
Percentage of RepaymentsOfLinesOfCredit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RepaymentsOfLinesOfCredit dei:LegalEntity

atus:CSCHoldings


Repayments
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value2831225468218102489739241361
Percentage of RepaymentsOfLinesOfCredit100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RepaymentsOfLongTermCapitalLeaseObligations

us-gaap:RepaymentsOfLongTermCapitalLeaseObligations


Repayments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value191818126.2355.72.2443.4631.6621.6111.6472.5622.9523.0673.6393.4573.8544.2077.4615.527
Percentage of RepaymentsOfLongTermCapitalLeaseObligations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RepaymentsOfLongTermCapitalLeaseObligations dei:LegalEntity

atus:CSCHoldings


Repayments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value191818126.2355.72.2443.4631.6621.611
Percentage of RepaymentsOfLongTermCapitalLeaseObligations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RepaymentsOfNotesPayable

us-gaap:RepaymentsOfNotesPayable


Repayments
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value29407.4951116155818130.4460.0
Percentage of RepaymentsOfNotesPayable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:RepaymentsOfNotesPayable dei:LegalEntity

atus:CSCHoldings


Repayments
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value29407.49511161558
Percentage of RepaymentsOfNotesPayable100.0100.0100.0100.0100.0100.0100.0

us-gaap:RepaymentsOfSecuredDebt

us-gaap:RepaymentsOfSecuredDebt


Repayments
Period End2021-06-302021-03-312019-12-312019-09-302018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value0.01850.00.00.01793370.01761713321500.0143
Percentage of RepaymentsOfSecuredDebt0.0100.00.00.00.0100.0100.00.0100.0100.0100.0100.00.0100.0

us-gaap:RepaymentsOfSecuredDebt dei:LegalEntity

atus:CSCHoldings


Repayments
Period End2021-06-302021-03-31
Value0.0185
Percentage of RepaymentsOfSecuredDebt0.0100.0

us-gaap:RepaymentsOfSeniorDebt

us-gaap:RepaymentsOfSeniorDebt


Repayments
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value45990.00.017548.8860.024625.206500106610570.07509790.00.00.0
Percentage of RepaymentsOfSeniorDebt100.00.00.0100.0100.00.0100.0100.0100.0100.0100.00.0100.0100.00.00.00.0

us-gaap:RepaymentsOfSeniorDebt dei:LegalEntity

atus:CSCHoldings


Repayments
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value45990.00.012400.00.02462
Percentage of RepaymentsOfSeniorDebt100.00.00.070.70.00.0100.0

us-gaap:RestructuringCharges

us-gaap:RestructuringCharges


Restructuring
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value5.8643.2090.880.46401.9790.7090.7114.4127.091146.1951.3218.844521276844489
Percentage of RestructuringCharges100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestructuringCharges us-gaap:RestructuringCostAndReserve

atus:FacilityRealignmentAndOtherCosts2016Plan


Restructuring
Period End2020-12-31
Value0.88
Percentage of RestructuringCharges100.0

atus:FacilityRealignmentandOtherCosts


Restructuring
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value1.410.3241.8920.081.9790.6650.5120.5714.5698.8263.831-0.4976.2361.05
Percentage of RestructuringCharges24.010.1411.30.2100.093.872.012.964.460.261.8-37.670.52.0

us-gaap:EmployeeSeverance


Restructuring
Period End2021-06-302021-03-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value1.2991.856400.00.0440.1993.8412.5225.8412.3641.8182.60851
Percentage of RestructuringCharges22.257.898.10.06.228.087.135.639.838.2137.629.598.0

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

us-gaap:EmployeeSeverance, atus:A2019Restructuring


Restructuring
Period End2020-12-312020-09-302020-06-302020-03-312019-12-31
Value0.0290.0120.0593.12126
Percentage of RestructuringCharges3.32.60.1157.73746.8

us-gaap:EmployeeSeverance, atus:A2020Severance


Restructuring
Period End2020-09-30
Value5.428
Percentage of RestructuringCharges1180.0

us-gaap:RestructuringReserveSettledWithoutCash2

us-gaap:RestructuringReserveSettledWithoutCash2


Restructuring
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value271.0361.3475.7121.11.4318.583
Percentage of RestructuringReserveSettledWithoutCash2100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestructuringReserveSettledWithoutCash2 dei:LegalEntity

atus:CSCHoldings


Restructuring
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value271.0361.3475.7121.11.4318.583
Percentage of RestructuringReserveSettledWithoutCash2100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromRelatedParties

us-gaap:RevenueFromRelatedParties


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value3.0353.4063.6744.1883.3793.4882.8160.070.4960.5921.1780.5450.7270.1250.8250.9860.2530.1410.3660.720.0
Percentage of RevenueFromRelatedParties100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability

us-gaap:RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability


Right
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
Value39382232502724231.5314.975.3866.8130.6930.656
Percentage of RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability


Right
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value8.352.865154.7332.55512143.791394.193
Percentage of RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue us-gaap:PlanName

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue

atus:CarryUnitPlan


Share
Period End2020-12-31
Value0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue0.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue us-gaap:PlanName

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue

atus:CarryUnitPlan


Share
Period End2021-06-302021-03-312020-12-31
Value-0.393.8-0.02
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice


Share
Period End2021-06-302021-03-312020-12-31
Value-0.3417.79-0.06
Percentage of ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice us-gaap:PlanName

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice

atus:A2017LTIP


Share
Period End2021-06-302021-03-312020-12-31
Value0.7326.11.19
Percentage of ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice us-gaap:PlanName

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice

atus:A2017LTIP


Share
Period End2021-06-302021-03-312020-12-312017-12-30
Value-0.3334.780.0919.48
Percentage of ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueConversionOfConvertibleSecuritiesNetOfAdjustments us-gaap:StatementClassOfStock, us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodValueConversionOfConvertibleSecuritiesNetOfAdjustments

us-gaap:CommonClassA, us-gaap:CommonStock


Stock
Period End2021-03-312020-09-302019-09-302019-06-302019-03-31
Value1000.02000.09000.016000.0242000.0
Percentage of StockIssuedDuringPeriodValueConversionOfConvertibleSecuritiesNetOfAdjustments100.0100.0100.0100.0100.0

us-gaap:CommonClassB, us-gaap:CommonStock


Stock
Period End2021-03-312020-09-302019-09-302019-06-302019-03-31
Value-1000.0-2000.0-9000.0-16000.0-242000.0
Percentage of StockIssuedDuringPeriodValueConversionOfConvertibleSecuritiesNetOfAdjustments-100.0-100.0-100.0-100.0-100.0

us-gaap:StockIssuedDuringPeriodValueTreasuryStockReissued

us-gaap:StockIssuedDuringPeriodValueTreasuryStockReissued


Stock
Period End2020-09-302020-06-302020-03-31
Value2392000.01965000.0-2507000.0
Percentage of StockIssuedDuringPeriodValueTreasuryStockReissued100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueTreasuryStockReissued us-gaap:StatementEquityComponents

us-gaap:Parent


Stock
Period End2020-09-302020-06-302020-03-31
Value2392000.01965000.0-2507000.0
Percentage of StockIssuedDuringPeriodValueTreasuryStockReissued100.0100.0100.0

us-gaap:TreasuryStock


Stock
Period End2020-09-302020-06-302020-03-31
Value2000.024000.011000.0
Percentage of StockIssuedDuringPeriodValueTreasuryStockReissued0.11.2-0.4

us-gaap:StockholdersEquityOther dei:LegalEntity

us-gaap:StockholdersEquityOther

atus:CSCHoldings


Stockholders
Period End2021-06-302021-03-312019-09-302019-06-302019-03-31
Value-333000.0502000.0429000.0244000.0-276000.0
Percentage of StockholdersEquityOther100.0100.0100.0100.0100.0

us-gaap:StockholdersEquityOther dei:LegalEntity, us-gaap:StatementEquityComponents

atus:CSCHoldings, us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312019-09-302019-06-302019-03-31
Value-257000.04804000.0429000.0244000.0-276000.0
Percentage of StockholdersEquityOther77.2957.0100.0100.0100.0

atus:CSCHoldings, us-gaap:NoncontrollingInterest


Stockholders
Period End2021-06-302021-03-31
Value-76000.0-4302000.0
Percentage of StockholdersEquityOther22.8-857.0

atus:CSCHoldings, us-gaap:Parent


Stockholders
Period End2021-06-302021-03-312019-09-302019-06-302019-03-31
Value-257000.04804000.0429000.0244000.0-276000.0
Percentage of StockholdersEquityOther77.2957.0100.0100.0100.0

us-gaap:TreasuryStockRetiredCostMethodAmount

us-gaap:TreasuryStockRetiredCostMethodAmount


Treasury
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-09-30
Value20252229864486317490.0486599600240
Percentage of TreasuryStockRetiredCostMethodAmount100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0

us-gaap:TreasuryStockRetiredCostMethodAmount us-gaap:StatementClassOfStock, us-gaap:StatementEquityComponents

us-gaap:CommonClassA, us-gaap:CommonStock


Treasury
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value0.0580.1520.1690.2580.3120.1840.2490.2940.133
Percentage of TreasuryStockRetiredCostMethodAmount0.00.00.00.00.00.00.00.00.1

us-gaap:TreasuryStockRetiredCostMethodAmount us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Treasury
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value448630749486599599240
Percentage of TreasuryStockRetiredCostMethodAmount100.0100.0100.0100.0100.0100.099.9

us-gaap:Parent


Treasury
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value202522448631749486599600240
Percentage of TreasuryStockRetiredCostMethodAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RetainedEarnings


Treasury
Period End2021-06-302021-03-31
Value202522
Percentage of TreasuryStockRetiredCostMethodAmount100.0100.0

atus:AlternativeMinimumTaxCreditReceivable

atus:AlternativeMinimumTaxCreditReceivable


Alternative
Period End2020-12-31
Value48
Percentage of AlternativeMinimumTaxCreditReceivable100.0

atus:BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedCurrentAssetsExcludingReceivables us-gaap:BusinessAcquisition, us-gaap:FiniteLivedIntangibleAssetsByMajorClass

atus:BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedCurrentAssetsExcludingReceivables

atus:ServiceElectricOfNewJersey, us-gaap:CustomerRelationships


Business
Period End2020-12-31
Value35
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedCurrentAssetsExcludingReceivables100.0

atus:ServiceElectricOfNewJersey, us-gaap:PropertyPlantAndEquipment


Business
Period End2020-12-31
Value52
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedCurrentAssetsExcludingReceivables149.3

atus:CarryingAmountOfSeniorNotes

atus:CarryingAmountOfSeniorNotes


Carrying
Period End2021-06-302021-03-312020-12-312020-09-302019-12-31
Value85258018800980007874
Percentage of CarryingAmountOfSeniorNotes100.0100.0100.0100.0100.0

atus:CarryingAmountOfSeniorNotesAndSeniorGuaranteedNotes

atus:CarryingAmountOfSeniorNotesAndSeniorGuaranteedNotes


Carrying
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value763476277626762517218154881547615359
Percentage of CarryingAmountOfSeniorNotesAndSeniorGuaranteedNotes100.0100.0100.0100.0100.0100.0100.0100.0

atus:CarryingAmountOfSeniorNotesAndSeniorGuaranteedNotes dei:LegalEntity

atus:CablevisionLightpathLLC


Carrying
Period End2020-09-30
Value860
Percentage of CarryingAmountOfSeniorNotesAndSeniorGuaranteedNotes11.3

atus:CarryingAmountOfSeniorNotesAndSeniorSecuredNotes

atus:CarryingAmountOfSeniorNotesAndSeniorSecuredNotes


Carrying
Period End2020-12-312019-12-31
Value76267602
Percentage of CarryingAmountOfSeniorNotesAndSeniorSecuredNotes100.0100.0

atus:CarryingAmountOfSeniorNotesAndSeniorSecuredNotes dei:LegalEntity

atus:CablevisionLightpath


Carrying
Period End2021-06-302021-03-312020-12-31
Value142814291429
Percentage of CarryingAmountOfSeniorNotesAndSeniorSecuredNotes0.00.018.7

atus:CarryingValueOfCreditFacilityDebt

atus:CarryingValueOfCreditFacilityDebt


Carrying
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value73737639770572967122713971485915
Percentage of CarryingValueOfCreditFacilityDebt100.0100.0100.0100.0100.0100.0100.0100.0

atus:CostOfSharesPaidInConnectionWithTenderOffer

atus:CostOfSharesPaidInConnectionWithTenderOffer


Cost
Period End2020-12-21
Value2326
Percentage of CostOfSharesPaidInConnectionWithTenderOffer100.0

atus:DeferredTaxAssetsOperatingLeaseLiability

atus:DeferredTaxAssetsOperatingLeaseLiability


Deferred
Period End2020-12-312019-12-312018-12-31
Value70820.0
Percentage of DeferredTaxAssetsOperatingLeaseLiability100.0100.00.0

atus:DeferredTaxAssetsOperatingLeaseLiability dei:LegalEntity

atus:CSCHoldings


Deferred
Period End2020-12-312019-12-312018-12-31
Value70820.0
Percentage of DeferredTaxAssetsOperatingLeaseLiability100.0100.00.0

atus:DeferredTaxAssetsOperatingLossandTaxCreditCarryforwards

atus:DeferredTaxAssetsOperatingLossandTaxCreditCarryforwards


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value75309571784971
Percentage of DeferredTaxAssetsOperatingLossandTaxCreditCarryforwards100.0100.0100.0100.0100.0

atus:DeferredTaxAssetsOperatingLossandTaxCreditCarryforwards dei:LegalEntity

atus:CSCHoldings


Deferred
Period End2020-12-312019-12-312018-12-31
Value307416
Percentage of DeferredTaxAssetsOperatingLossandTaxCreditCarryforwards40.524.02.9

atus:DeferredTaxLiabilitiesFairValueAdjustments

atus:DeferredTaxLiabilitiesFairValueAdjustments


Deferred
Period End2020-12-312019-12-312018-12-31
Value215640
Percentage of DeferredTaxLiabilitiesFairValueAdjustments100.0100.0100.0

atus:DeferredTaxLiabilitiesFairValueAdjustments dei:LegalEntity

atus:CSCHoldings


Deferred
Period End2020-12-312019-12-312018-12-31
Value215618
Percentage of DeferredTaxLiabilitiesFairValueAdjustments100.0100.045.2

atus:DeferredTaxLiabilitiesFixedAssetsAndIntangibles

atus:DeferredTaxLiabilitiesFixedAssetsAndIntangibles


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value49415384549657339065
Percentage of DeferredTaxLiabilitiesFixedAssetsAndIntangibles100.0100.0100.0100.0100.0

atus:DeferredTaxLiabilitiesFixedAssetsAndIntangibles dei:LegalEntity

atus:CSCHoldings


Deferred
Period End2020-12-312019-12-312018-12-31
Value494153845473
Percentage of DeferredTaxLiabilitiesFixedAssetsAndIntangibles100.0100.099.6

atus:DeferredTaxLiabilitiesOperatingLeaseAsset

atus:DeferredTaxLiabilitiesOperatingLeaseAsset


Deferred
Period End2020-12-312019-12-312018-12-31
Value56750.0
Percentage of DeferredTaxLiabilitiesOperatingLeaseAsset100.0100.00.0

atus:DeferredTaxLiabilitiesOperatingLeaseAsset dei:LegalEntity

atus:CSCHoldings


Deferred
Period End2020-12-312019-12-312018-12-31
Value56750.0
Percentage of DeferredTaxLiabilitiesOperatingLeaseAsset100.0100.00.0

atus:DiscountFromFairValueOfInterestRateSwaps atus:DerivativeInstrumentName, us-gaap:DerivativeInstrumentRisk

atus:DiscountFromFairValueOfInterestRateSwaps

atus:DerivativeInstrumentsMaturingDate2025Fixed153And1625, us-gaap:InterestRateSwap


Discount
Period End2020-09-30
Value5689000.0
Percentage of DiscountFromFairValueOfInterestRateSwaps100.0

atus:EnterpriseValueOfSubsidiary us-gaap:ConsolidatedEntities

atus:EnterpriseValueOfSubsidiary

atus:CablevisionLightpathLLC


Enterprise
Period End2020-07-29
Value3200
Percentage of EnterpriseValueOfSubsidiary100.0

atus:FaceAmountOfCreditFacilityDebt

atus:FaceAmountOfCreditFacilityDebt


Face
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value74137682775073437161717971905972
Percentage of FaceAmountOfCreditFacilityDebt100.0100.0100.0100.0100.0100.0100.0100.0

atus:FaceAmountOfSeniorNotes

atus:FaceAmountOfSeniorNotes


Face
Period End2021-06-302021-03-312020-12-312020-09-302019-12-31
Value85248024802480248002
Percentage of FaceAmountOfSeniorNotes100.0100.0100.0100.0100.0

atus:FaceAmountOfSeniorNotesAndSeniorGuaranteedNotes

atus:FaceAmountOfSeniorNotesAndSeniorGuaranteedNotes


Face
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value766076587658765817382156571565715733
Percentage of FaceAmountOfSeniorNotesAndSeniorGuaranteedNotes100.0100.0100.0100.0100.0100.0100.0100.0

atus:FaceAmountOfSeniorNotesAndSeniorGuaranteedNotes dei:LegalEntity

atus:CablevisionLightpathLLC


Face
Period End2020-09-30
Value865
Percentage of FaceAmountOfSeniorNotesAndSeniorGuaranteedNotes11.3

atus:FaceAmountOfSeniorNotesAndSeniorSecuredNotes

atus:FaceAmountOfSeniorNotesAndSeniorSecuredNotes


Face
Period End2020-12-312019-12-31
Value76587654
Percentage of FaceAmountOfSeniorNotesAndSeniorSecuredNotes100.0100.0

atus:FaceAmountOfSeniorNotesAndSeniorSecuredNotes dei:LegalEntity

atus:CablevisionLightpath


Face
Period End2021-06-302021-03-312020-12-31
Value146214631465
Percentage of FaceAmountOfSeniorNotesAndSeniorSecuredNotes0.00.019.1

atus:FinanceLeasesFutureMinimumPaymentsInterestIncludedInPayments

atus:FinanceLeasesFutureMinimumPaymentsInterestIncludedInPayments


Finance
Period End2021-06-302021-03-312020-09-30
Value111111
Percentage of FinanceLeasesFutureMinimumPaymentsInterestIncludedInPayments100.0100.0100.0

atus:FinanceLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments

atus:FinanceLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments


Finance
Period End2021-06-302021-03-312020-09-30
Value199179155
Percentage of FinanceLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments100.0100.0100.0

atus:Guarantees

atus:Guarantees


Guarantees
Period End2020-12-31
Value59
Percentage of Guarantees100.0

atus:GuaranteesDueinNextTwelveMonths

atus:GuaranteesDueinNextTwelveMonths


Guarantees
Period End2020-12-31
Value59
Percentage of GuaranteesDueinNextTwelveMonths100.0

atus:GuaranteesDueinSecondandThirdYear

atus:GuaranteesDueinSecondandThirdYear


Guarantees
Period End2020-12-31
Value60000.0
Percentage of GuaranteesDueinSecondandThirdYear100.0

atus:ImpliedEnterpriseValueOfSubsidiary

atus:ImpliedEnterpriseValueOfSubsidiary


Implied
Period End2020-12-31
Value3200
Percentage of ImpliedEnterpriseValueOfSubsidiary100.0

atus:LettersofCredit

atus:LettersofCredit


Lettersof
Period End2020-12-31
Value137
Percentage of LettersofCredit100.0

atus:LettersofCreditDueinFourthandFifthYear

atus:LettersofCreditDueinFourthandFifthYear


Lettersof
Period End2020-12-31
Value128
Percentage of LettersofCreditDueinFourthandFifthYear100.0

atus:LettersofCreditDueinNextTwelveMonths

atus:LettersofCreditDueinNextTwelveMonths


Lettersof
Period End2020-12-31
Value7460000.0
Percentage of LettersofCreditDueinNextTwelveMonths100.0

atus:LettersofCreditDueinSecondandThirdYear

atus:LettersofCreditDueinSecondandThirdYear


Lettersof
Period End2020-12-31
Value1990000.0
Percentage of LettersofCreditDueinSecondandThirdYear100.0

atus:LongtermDebtRightOfUseFinancingObligationsExcludingCurrentMaturities

atus:LongtermDebtRightOfUseFinancingObligationsExcludingCurrentMaturities


Longterm
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value247248257253259267269270229802313722653
Percentage of LongtermDebtRightOfUseFinancingObligationsExcludingCurrentMaturities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

atus:LongtermDebtRightOfUseFinancingObligationsExcludingCurrentMaturities dei:LegalEntity

atus:CSCHoldings


Longterm
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value2472572532592672690.0
Percentage of LongtermDebtRightOfUseFinancingObligationsExcludingCurrentMaturities100.0100.0100.0100.0100.0100.00.0

atus:MaximumAmountOfferedOnCommencementOfTenderOffer

atus:MaximumAmountOfferedOnCommencementOfTenderOffer


Maximum
Period End2020-11-23
Value2500
Percentage of MaximumAmountOfferedOnCommencementOfTenderOffer100.0

atus:Membershipequitybeforenoncontrollinginterest dei:LegalEntity

atus:Membershipequitybeforenoncontrollinginterest

atus:CSCHoldings


Membershipequitybeforenoncontrollinginterestdei:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value-1315.416-1342.929-1168.859479825124420443989
Percentage of Membershipequitybeforenoncontrollinginterest100.0100.0100.0100.0100.0100.0100.0100.0

atus:Membershipequitybeforenoncontrollinginterest dei:LegalEntity, us-gaap:StatementEquityComponents

atus:CSCHoldings, us-gaap:Parent


Membershipequitybeforenoncontrollinginterestdei:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-31
Value-1315.416-1342.929-1168.85947982512442044239528493344398994448858
Percentage of Membershipequitybeforenoncontrollinginterest100.0100.0100.0100.0100.0100.0100.00.00.00.0100.00.00.0

atus:Membershipinterestbeforeaccumulatedcomprehensiveloss dei:LegalEntity

atus:Membershipinterestbeforeaccumulatedcomprehensiveloss

atus:CSCHoldings


Membershipinterestbeforeaccumulatedcomprehensivelossdei:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value-1326.985-1353.55-1172.505487837125720474001
Percentage of Membershipinterestbeforeaccumulatedcomprehensiveloss100.0100.0100.0100.0100.0100.0100.0100.0

atus:Membershipinterestbeforeaccumulatedcomprehensiveloss dei:LegalEntity, us-gaap:StatementEquityComponents

atus:CSCHoldings, us-gaap:AdditionalPaidInCapital


Membershipinterestbeforeaccumulatedcomprehensivelossdei:
Period End2021-06-302021-03-31
Value-1326.985-1353.55
Percentage of Membershipinterestbeforeaccumulatedcomprehensiveloss100.0100.0

atus:OperatingLeasesFutureMinimumPaymentsInterestIncludedInPayments

atus:OperatingLeasesFutureMinimumPaymentsInterestIncludedInPayments


Operating
Period End2021-06-302021-03-312020-09-30
Value818392
Percentage of OperatingLeasesFutureMinimumPaymentsInterestIncludedInPayments100.0100.0100.0

atus:OperatingLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments

atus:OperatingLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments


Operating
Period End2021-06-302021-03-312020-09-30
Value285287292
Percentage of OperatingLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments100.0100.0100.0

atus:ShareBasedCompensationUnrecognizedDeferredCompensationCost

atus:ShareBasedCompensationUnrecognizedDeferredCompensationCost


Share
Period End2021-06-302021-03-31
Value160184
Percentage of ShareBasedCompensationUnrecognizedDeferredCompensationCost100.0100.0

atus:ShareBasedCompensationUnrecognizedDeferredCompensationCost us-gaap:AwardType, us-gaap:PlanName

atus:PerformanceUnits, atus:A2017LTIP


Share
Period End2020-12-31
Value63
Percentage of ShareBasedCompensationUnrecognizedDeferredCompensationCost0.0

us-gaap:EmployeeStockOption, atus:A2017LTIP


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value102123146171200229
Percentage of ShareBasedCompensationUnrecognizedDeferredCompensationCost63.966.80.00.00.00.0

us-gaap:PerformanceShares, atus:A2017LTIP


Share
Period End2021-06-302021-03-312020-09-302020-06-302020-03-31
Value5760657177
Percentage of ShareBasedCompensationUnrecognizedDeferredCompensationCost35.932.80.00.00.0

us-gaap:RestrictedStock, atus:A2019LTIP


Share
Period End2021-06-302021-03-312020-12-31
Value0.3050.5490.855
Percentage of ShareBasedCompensationUnrecognizedDeferredCompensationCost0.20.30.0

us-gaap:RestrictedStockUnitsRSU, atus:CarryUnitPlan


Share
Period End2021-03-312020-12-31
Value0.0440.804
Percentage of ShareBasedCompensationUnrecognizedDeferredCompensationCost0.00.0

atus:SharebasedCompensationArrangementWeightedAverageFairValuePerUnit us-gaap:AwardType, us-gaap:PlanName

atus:SharebasedCompensationArrangementWeightedAverageFairValuePerUnit

us-gaap:RestrictedStockUnitsRSU, atus:CarryUnitPlan


Sharebased
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-31
Value2.13.892.041.752.713.253.83.172.741.952.51.76
Percentage of SharebasedCompensationArrangementWeightedAverageFairValuePerUnit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

atus:TotalStockholdersEquityBeforeAccumulatedOtherComprehensiveIncomeLossandNoncontrollingInterest

atus:TotalStockholdersEquityBeforeAccumulatedOtherComprehensiveIncomeLossandNoncontrollingInterest


Total
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
Value-1310.509-1180.93-980.8190713241758243721062540301136823664387054035504307132642027
Percentage of TotalStockholdersEquityBeforeAccumulatedOtherComprehensiveIncomeLossandNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

atus:UnsettledTreasuryShares

atus:UnsettledTreasuryShares


Unsettled
Period End2021-03-312020-09-302020-03-312019-09-302019-03-312018-09-302018-03-31
Value1815230.013130.0
Percentage of UnsettledTreasuryShares100.0100.0100.00.0100.0100.00.0

us-gaap:AllowanceForDoubtfulAccountsReceivable

us-gaap:AllowanceForDoubtfulAccountsReceivable


Allowance
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value25141313111.051
Percentage of AllowanceForDoubtfulAccountsReceivable100.0100.0100.0100.0100.0100.0

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent


Allowance
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value25403222141315121313121013141311
Percentage of AllowanceForDoubtfulAccountsReceivableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent dei:LegalEntity

atus:CSCHoldings


Allowance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value2422144032171413
Percentage of AllowanceForDoubtfulAccountsReceivableCurrent0.00.058.3100.0100.078.7100.0100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment

atus:LightpathAcquiredAssets


Business
Period End2021-06-30
Value14
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment100.0

atus:NorthCarolinaAssets


Business
Period End2021-06-30
Value71
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment488.7

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

us-gaap:CashAndCashEquivalentsFairValueDisclosure

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


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value115150501218421485634426329129621811215.94965438100
Percentage of CashAndCashEquivalentsFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CollateralizedAgreements

us-gaap:CollateralizedAgreements


Collateralized
Period End2021-06-302021-03-312020-12-312020-09-30
Value122999986
Percentage of CollateralizedAgreements100.0100.0100.0100.0

us-gaap:ContractWithCustomerAssetNet

us-gaap:ContractWithCustomerAssetNet


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
Value181819212129302928272625242324
Percentage of ContractWithCustomerAssetNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerLiability

us-gaap:ContractWithCustomerLiability


Contract
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value167164176182162204198190173138129117
Percentage of ContractWithCustomerLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractualObligation

us-gaap:ContractualObligation


Contractual
Period End2020-12-31
Value6780
Percentage of ContractualObligation100.0

us-gaap:ContractualObligationDueAfterFifthYear

us-gaap:ContractualObligationDueAfterFifthYear


Contractual
Period End2020-12-31
Value52
Percentage of ContractualObligationDueAfterFifthYear100.0

us-gaap:ContractualObligationDueInFourthAndFifthYear

us-gaap:ContractualObligationDueInFourthAndFifthYear


Contractual
Period End2020-12-31
Value880
Percentage of ContractualObligationDueInFourthAndFifthYear100.0

us-gaap:ContractualObligationDueInNextTwelveMonths

us-gaap:ContractualObligationDueInNextTwelveMonths


Contractual
Period End2020-12-31
Value3423
Percentage of ContractualObligationDueInNextTwelveMonths100.0

us-gaap:ContractualObligationDueInSecondAndThirdYear

us-gaap:ContractualObligationDueInSecondAndThirdYear


Contractual
Period End2020-12-31
Value2423
Percentage of ContractualObligationDueInSecondAndThirdYear100.0

us-gaap:DebtInstrumentFaceAmount

us-gaap:DebtInstrumentFaceAmount


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value2715826885269402591126499248222481724445240662371623296628257225733469354294915
Percentage of DebtInstrumentFaceAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtInstrumentFairValue dei:LegalEntity, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis, us-gaap:LongtermDebtType

us-gaap:DebtInstrumentFairValue

atus:CSCHoldings, us-gaap:FairValueInputsLevel2, us-gaap:CarryingReportedAmountFairValueDisclosure, atus:SeniorGuaranteeNotes


Debt
Period End2021-06-302021-03-312020-12-312020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value8075806880667604760276007598759658473284328332832291229022902289
Percentage of DebtInstrumentFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

atus:CSCHoldings, us-gaap:FairValueInputsLevel2, us-gaap:CarryingReportedAmountFairValueDisclosure, atus:SeniorGuaranteedNotes


Debt
Period End2020-09-302020-06-302019-12-31
Value807287017602
Percentage of DebtInstrumentFairValue0.00.0100.0

atus:CSCHoldings, us-gaap:FairValueInputsLevel2, us-gaap:CarryingReportedAmountFairValueDisclosure, us-gaap:LineOfCredit


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
Value795482218288729671227139714866327257694559154980443544423393412336062631
Percentage of DebtInstrumentFairValue98.5101.9102.70.00.093.994.087.395.591.4101.2151.6135.1135.3148.1180.0157.4115.0

atus:CSCHoldings, us-gaap:FairValueInputsLevel2, us-gaap:CarryingReportedAmountFairValueDisclosure, us-gaap:NotesPayableOtherPayables


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
Value139118174154107135140110102616442367856768713
Percentage of DebtInstrumentFairValue1.71.52.20.00.01.81.91.51.40.81.11.31.12.42.53.33.80.6

atus:CSCHoldings, us-gaap:FairValueInputsLevel2, us-gaap:CarryingReportedAmountFairValueDisclosure, us-gaap:SecuredDebt


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
Value168716771617160916011593158514231417141114061400139213511349131413081286
Percentage of DebtInstrumentFairValue20.920.820.10.00.020.920.818.718.718.624.042.642.441.258.957.457.156.2

atus:CSCHoldings, us-gaap:FairValueInputsLevel2, us-gaap:CarryingReportedAmountFairValueDisclosure, us-gaap:SeniorDebtObligations


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
Value893284248415841385167884787471426133612084165610610761086409641267276732
Percentage of DebtInstrumentFairValue110.6104.4104.30.00.0103.7103.694.080.780.6143.9170.8186.0186.0279.8279.9293.7294.1

atus:CSCHoldings, us-gaap:FairValueInputsLevel2, us-gaap:EstimateOfFairValueFairValueDisclosure, atus:SeniorGuaranteeNotes


Debt
Period End2021-06-302021-03-312020-12-312020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value8361836385677943822081368038792556463293319532312420246024922416
Percentage of DebtInstrumentFairValue103.5103.7106.2104.5108.1107.1105.8104.396.6100.397.398.4105.6107.4108.8105.5

atus:CSCHoldings, us-gaap:FairValueInputsLevel2, us-gaap:EstimateOfFairValueFairValueDisclosure, atus:SeniorGuaranteedNotes


Debt
Period End2020-09-302020-06-302019-12-31
Value751190948220
Percentage of DebtInstrumentFairValue0.00.0108.1

atus:CSCHoldings, us-gaap:FairValueInputsLevel2, us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:LineOfCredit


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
Value801082808350734371617179719066797319701159725033447044773435416736502675
Percentage of DebtInstrumentFairValue99.2102.6103.50.00.094.494.687.996.392.3102.1153.3136.1136.4149.9181.9159.4116.8

atus:CSCHoldings, us-gaap:FairValueInputsLevel2, us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:NotesPayableOtherPayables


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
Value1391181751541081361411101036163423576557212413
Percentage of DebtInstrumentFairValue1.71.52.20.00.01.81.91.51.40.81.11.31.12.32.43.25.50.6

atus:CSCHoldings, us-gaap:FairValueInputsLevel2, us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:SecuredDebt


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
Value175217531692169416961689161114231413139213741352133812981305128612721280
Percentage of DebtInstrumentFairValue21.721.721.00.00.022.221.218.718.618.323.541.240.739.557.056.255.555.9

atus:CSCHoldings, us-gaap:FairValueInputsLevel2, us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:SeniorDebtObligations


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
Value921587349024981090378253872879126824681189726245672767977221742177927731
Percentage of DebtInstrumentFairValue114.1108.3111.90.00.0108.5114.8104.189.889.7153.4190.2204.9207.0315.2324.0340.2337.7

us-gaap:DebtInstrumentFairValue us-gaap:FairValueByMeasurementBasis

us-gaap:CarryingReportedAmountFairValueDisclosure


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
Value267892650926562255462604924355243502401023613232342278723054229852295421919226242281924001
Percentage of DebtInstrumentFairValue331.7328.6329.30.00.0320.3320.3315.9310.8305.9389.7701.9700.0699.1956.7987.6996.41048.3

us-gaap:EstimateOfFairValueFairValueDisclosure


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
Value274802725027811265142709825202258922548124912244182323524059236992390123279244542479925896
Percentage of DebtInstrumentFairValue340.3337.8344.80.00.0331.4340.6335.3327.9321.4397.3732.5721.7728.01016.01067.51082.81131.1

us-gaap:DeferredFinanceCostsGross us-gaap:DebtInstrument, us-gaap:LongtermDebtType

us-gaap:DeferredFinanceCostsGross

atus:CablevisionLightpathLLC3875NotesDueSeptember152027, us-gaap:SecuredDebt


Deferred
Period End2020-09-30
Value7.9
Percentage of DeferredFinanceCostsGross100.0

atus:CablevisionLightpathLLC5625NotesDueSeptember152028, us-gaap:SeniorNotes


Deferred
Period End2020-09-30
Value7.3
Percentage of DeferredFinanceCostsGross92.4

us-gaap:DeferredIncomeTaxLiabilities

us-gaap:DeferredIncomeTaxLiabilities


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value56195643561959009303
Percentage of DeferredIncomeTaxLiabilities100.0100.0100.0100.0100.0

us-gaap:DeferredIncomeTaxLiabilities dei:LegalEntity

atus:CSCHoldings


Deferred
Period End2020-12-312019-12-312018-12-31
Value561956435575
Percentage of DeferredIncomeTaxLiabilities100.0100.099.2

us-gaap:DeferredTaxAssetsDerivativeInstruments

us-gaap:DeferredTaxAssetsDerivativeInstruments


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value51043202131
Percentage of DeferredTaxAssetsDerivativeInstruments100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsDerivativeInstruments dei:LegalEntity

atus:CSCHoldings


Deferred
Period End2020-12-312019-12-312018-12-31
Value5104320
Percentage of DeferredTaxAssetsDerivativeInstruments100.0100.0100.0

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsGross


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value65291092111281339
Percentage of DeferredTaxAssetsGross100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsGross dei:LegalEntity

atus:CSCHoldings


Deferred
Period End2020-12-312019-12-312018-12-31
Value607674233
Percentage of DeferredTaxAssetsGross93.174.125.4

us-gaap:DeferredTaxAssetsInvestmentInSubsidiaries

us-gaap:DeferredTaxAssetsInvestmentInSubsidiaries


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value-118.15496068113
Percentage of DeferredTaxAssetsInvestmentInSubsidiaries100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsInvestmentInSubsidiaries dei:LegalEntity

atus:CSCHoldings


Deferred
Period End2020-12-312019-12-312018-12-31
Value-118.154960
Percentage of DeferredTaxAssetsInvestmentInSubsidiaries100.0100.0100.0

us-gaap:DeferredTaxAssetsOther

us-gaap:DeferredTaxAssetsOther


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value2812117.1826.615
Percentage of DeferredTaxAssetsOther100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsOther dei:LegalEntity

atus:CSCHoldings


Deferred
Period End2020-12-312019-12-312018-12-31
Value28129.867
Percentage of DeferredTaxAssetsOther100.0100.085.6

us-gaap:DeferredTaxAssetsTaxCreditCarryforwardsResearch

us-gaap:DeferredTaxAssetsTaxCreditCarryforwardsResearch


Deferred
Period End2020-12-31
Value17
Percentage of DeferredTaxAssetsTaxCreditCarryforwardsResearch100.0

us-gaap:DeferredTaxAssetsTaxCreditCarryforwardsResearch dei:LegalEntity

atus:CSCHoldings


Deferred
Period End2020-12-31
Value17
Percentage of DeferredTaxAssetsTaxCreditCarryforwardsResearch100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value2925424893
Percentage of DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits dei:LegalEntity

atus:CSCHoldings


Deferred
Period End2020-12-312019-12-312018-12-31
Value292545
Percentage of DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits100.0100.0106.2

us-gaap:DeferredTaxAssetsTaxDeferredExpenseOther

us-gaap:DeferredTaxAssetsTaxDeferredExpenseOther


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value4942383845
Percentage of DeferredTaxAssetsTaxDeferredExpenseOther100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseOther dei:LegalEntity

atus:CSCHoldings


Deferred
Period End2020-12-312019-12-312018-12-31
Value494236
Percentage of DeferredTaxAssetsTaxDeferredExpenseOther100.0100.095.7

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsRestructuringCharges

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsRestructuringCharges


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value7.169119.3643337
Percentage of DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsRestructuringCharges100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsRestructuringCharges dei:LegalEntity

atus:CSCHoldings


Deferred
Period End2020-12-312019-12-312018-12-31
Value7.169119.364
Percentage of DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsRestructuringCharges100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesInvestmentInNoncontrolledAffiliates

us-gaap:DeferredTaxLiabilitiesInvestmentInNoncontrolledAffiliates


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value58711671113187
Percentage of DeferredTaxLiabilitiesInvestmentInNoncontrolledAffiliates100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesInvestmentInNoncontrolledAffiliates dei:LegalEntity

atus:CSCHoldings


Deferred
Period End2020-12-312019-12-312018-12-31
Value58711671
Percentage of DeferredTaxLiabilitiesInvestmentInNoncontrolledAffiliates100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesPrepaidExpenses

us-gaap:DeferredTaxLiabilitiesPrepaidExpenses


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value12107.5438.00710
Percentage of DeferredTaxLiabilitiesPrepaidExpenses100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesPrepaidExpenses dei:LegalEntity

atus:CSCHoldings


Deferred
Period End2020-12-312019-12-312018-12-31
Value12107.543
Percentage of DeferredTaxLiabilitiesPrepaidExpenses100.0100.0100.0

us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation

us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value233247264299382
Percentage of DefinedBenefitPlanAccumulatedBenefitObligation100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanAmountsRecognizedInBalanceSheet

us-gaap:DefinedBenefitPlanAmountsRecognizedInBalanceSheet


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value-30779000.0-57365000.0-97005000.0-103300000.0-98399000.0
Percentage of DefinedBenefitPlanAmountsRecognizedInBalanceSheet100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate

us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value2.40.0310.0420.0350.0381
Percentage of DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanBenefitObligation

us-gaap:DefinedBenefitPlanBenefitObligation


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value233247264299382403
Percentage of DefinedBenefitPlanBenefitObligation100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter


Defined
Period End2020-12-31
Value75
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter100.0

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths


Defined
Period End2020-12-31
Value16
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths100.0

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive


Defined
Period End2020-12-31
Value16
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive100.0

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour


Defined
Period End2020-12-31
Value15
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour100.0

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree


Defined
Period End2020-12-31
Value16
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree100.0

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo


Defined
Period End2020-12-31
Value14
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo100.0

us-gaap:DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear

us-gaap:DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear


Defined
Period End2020-12-31
Value8800000.0
Percentage of DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear100.0

us-gaap:DefinedBenefitPlanFairValueOfPlanAssets

us-gaap:DefinedBenefitPlanFairValueOfPlanAssets


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value202190167195284297
Percentage of DefinedBenefitPlanFairValueOfPlanAssets100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanFairValueOfPlanAssets us-gaap:DefinedBenefitPlanByPlanAssetCategories

atus:CommonCollectiveTrustEquities


Defined
Period End2020-12-312019-12-31
Value8352
Percentage of DefinedBenefitPlanFairValueOfPlanAssets41.327.4

atus:PlanAssetsExcludingCashAndNetPayables


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value202194165200285
Percentage of DefinedBenefitPlanFairValueOfPlanAssets100.0102.198.9102.3100.3

us-gaap:DefinedBenefitPlanCashAndCashEquivalents


Defined
Period End2020-12-312019-12-312018-12-31
Value3.8345.4667.53
Percentage of DefinedBenefitPlanFairValueOfPlanAssets1.92.94.5

us-gaap:MutualFund


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value114524961121
Percentage of DefinedBenefitPlanFairValueOfPlanAssets56.827.829.331.642.7

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atus:CommonCollectiveTrustEquities, us-gaap:FairValueInputsLevel2


Defined
Period End2020-12-312019-12-31
Value8352
Percentage of DefinedBenefitPlanFairValueOfPlanAssets41.327.4

atus:PlanAssetsExcludingCashAndNetPayables, us-gaap:FairValueInputsLevel1


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value3.834555368123
Percentage of DefinedBenefitPlanFairValueOfPlanAssets1.929.031.935.043.6

atus:PlanAssetsExcludingCashAndNetPayables, us-gaap:FairValueInputsLevel2


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value198139112131161
Percentage of DefinedBenefitPlanFairValueOfPlanAssets98.173.166.967.356.7

us-gaap:DefinedBenefitPlanCashAndCashEquivalents, us-gaap:FairValueInputsLevel1


Defined
Period End2020-12-312019-12-312018-12-31
Value3.8342.1884.343
Percentage of DefinedBenefitPlanFairValueOfPlanAssets1.91.12.6

us-gaap:MutualFund, us-gaap:FairValueInputsLevel2


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value1140.00.00.00.0
Percentage of DefinedBenefitPlanFairValueOfPlanAssets56.80.00.00.00.0

us-gaap:DefinedBenefitPlanFundedStatusOfPlan

us-gaap:DefinedBenefitPlanFundedStatusOfPlan


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value-30779000.0-57365000.0-97005000.0-103300000.0-98399000.0
Percentage of DefinedBenefitPlanFundedStatusOfPlan100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanWeightedAverageAssetAllocations

us-gaap:DefinedBenefitPlanWeightedAverageAssetAllocations


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value100.01.01.01.01.0
Percentage of DefinedBenefitPlanWeightedAverageAssetAllocations100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanWeightedAverageAssetAllocations us-gaap:DefinedBenefitPlanByPlanAssetCategories

atus:CommonCollectiveTrustEquities


Defined
Period End2020-12-312019-12-312018-12-31
Value41.00.270
Percentage of DefinedBenefitPlanWeightedAverageAssetAllocations41.027.00.0

atus:CommonCollectiveTrustFixedIncome


Defined
Period End2020-12-31
Value57.0
Percentage of DefinedBenefitPlanWeightedAverageAssetAllocations57.0

us-gaap:CashAndCashEquivalents


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value2.00.010.060.020.02
Percentage of DefinedBenefitPlanWeightedAverageAssetAllocations2.01.06.02.02.0

us-gaap:DerivativeAssets us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:DerivativeAssets

us-gaap:ForwardContracts, us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring


Derivative
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value4522221378250.00.00.0109311107252549110
Percentage of DerivativeAssets100.0100.0100.0100.0100.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestRateSwap, us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value3.9678.2529.9065.0284.0580.3720.02.6340.00.01.9753.2690.0
Percentage of DerivativeAssets0.00.021.722.11.80.10.00.00.00.01.810.40.0

us-gaap:DerivativeAssetsCurrent

us-gaap:DerivativeAssetsCurrent


Derivative
Period End2021-06-302021-03-312020-12-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value3.9678.252500.00.00.00.01.9753.2699.9929.2115254810.352
Percentage of DerivativeAssetsCurrent100.0100.0100.00.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeAssetsCurrent dei:LegalEntity

atus:CSCHoldings


Derivative
Period End2021-06-302021-03-312020-12-312019-12-312018-12-31
Value3.9678.252500.01.975
Percentage of DerivativeAssetsCurrent100.0100.0100.00.0100.0

us-gaap:DerivativeAssetsNoncurrent

us-gaap:DerivativeAssetsNoncurrent


Derivative
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value4.77427225378252.6340.00.010931101630.00.09.86810
Percentage of DerivativeAssetsNoncurrent100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0100.00.00.0100.0100.0

us-gaap:DerivativeAssetsNoncurrent dei:LegalEntity

atus:CSCHoldings


Derivative
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value4.7742722537825109
Percentage of DerivativeAssetsNoncurrent100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeFairValueOfDerivativeAsset

us-gaap:DerivativeFairValueOfDerivativeAsset


Derivative
Period End2020-12-312019-12-31
Value5525
Percentage of DerivativeFairValueOfDerivativeAsset100.0100.0

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

atus:CurrentDerivativeContracts, us-gaap:ForwardContracts, us-gaap:Nondesignated


Derivative
Period End2020-12-312019-12-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value45450.00.09.6239.2115254810.352
Percentage of DerivativeFairValueOfDerivativeAsset82.2181.10.00.00.00.00.00.00.00.0

atus:CurrentDerivativeContracts, us-gaap:InterestRateSwap, us-gaap:Nondesignated


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value3.9678.2525.1325.0284.0580.3720.00.00.00.01.9753.2690.3690.0
Percentage of DerivativeFairValueOfDerivativeAsset0.00.09.20.00.00.00.00.00.00.00.00.00.00.0

atus:LongTermDerivativeContracts, us-gaap:ForwardContracts, us-gaap:Nondesignated


Derivative
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value22221378250.00.00.010931101630.00.09.86810
Percentage of DerivativeFairValueOfDerivativeAsset0.00.00.0100.00.00.00.00.00.00.00.00.00.00.00.0

atus:LongTermDerivativeContracts, us-gaap:InterestRateSwap, us-gaap:Nondesignated


Derivative
Period End2020-12-312019-09-302018-12-312017-12-31
Value4.7742.6340.00.0
Percentage of DerivativeFairValueOfDerivativeAsset8.60.00.00.0

us-gaap:DerivativeFairValueOfDerivativeAsset us-gaap:HedgingDesignation

us-gaap:Nondesignated


Derivative
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
Value3.9678.2525527225378252.6340.00.0111341107252549110
Percentage of DerivativeFairValueOfDerivativeAsset0.00.0100.00.00.00.0100.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:DerivativeFairValueOfDerivativeLiability

us-gaap:DerivativeFairValueOfDerivativeLiability


Derivative
Period End2020-12-312019-12-31
Value-568.803-256.135
Percentage of DerivativeFairValueOfDerivativeLiability100.0100.0

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

atus:LongtermLiabilitiesUnderDerivativeContracts, us-gaap:ForwardContracts, us-gaap:Nondesignated


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value400301247663.527.72894194117670.0109
Percentage of DerivativeFairValueOfDerivativeLiability0.00.0-43.60.00.00.0-37.00.00.00.00.00.0

atus:LongtermLiabilitiesUnderDerivativeContracts, us-gaap:InterestRateSwap, us-gaap:Nondesignated


Derivative
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
Value17917027530030928316018217115513214312310977697078
Percentage of DerivativeFairValueOfDerivativeLiability0.00.0-48.40.00.00.0-62.80.00.00.00.00.00.00.00.00.00.00.0

atus:ShorttermLiabilitiesUnderDerivativeContracts, us-gaap:ForwardContracts, us-gaap:Nondesignated


Derivative
Period End2020-12-312019-12-312018-12-312017-12-31
Value450.00.052
Percentage of DerivativeFairValueOfDerivativeLiability-8.0-0.00.00.0

atus:ShorttermLiabilitiesUnderDerivativeContracts, us-gaap:InterestRateSwap, us-gaap:Nondesignated


Derivative
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value-9.898-12.861-3.988-4.016-0.85-0.469-0.674-0.478-0.754-0.070.0
Percentage of DerivativeFairValueOfDerivativeLiability0.00.00.00.00.00.20.00.00.00.00.0

us-gaap:DerivativeFairValueOfDerivativeLiability us-gaap:HedgingDesignation

us-gaap:Nondesignated


Derivative
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
Value-590.149-485.263-568.803-370.802-316.932-292.289-256.135-378.287-289.634-223.808-132.97815313312323922423691
Percentage of DerivativeFairValueOfDerivativeLiability0.00.0100.00.00.00.0100.00.00.00.00.00.00.00.00.00.00.00.0

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

us-gaap:DerivativeLiabilities

us-gaap:ForwardContracts, us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring


Derivative
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
Value400-301.418293663.527.72894194117670.0109.6231316210716613
Percentage of DerivativeLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestRateSwap, us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring


Derivative
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
Value189-183.84527530431328416118317215613214312310977697078
Percentage of DerivativeLiabilities47.461.093.8460.58903.83682.2170.294.3146.9230.70.01418.61283.1801.348.164.742.3599.1

us-gaap:DerivativeLiabilitiesNoncurrent

us-gaap:DerivativeLiabilitiesNoncurrent


Derivative
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
Value58047252336631229125537728922313215312311418712115578
Percentage of DerivativeLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeLiabilitiesNoncurrent dei:LegalEntity

atus:CSCHoldings


Derivative
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value580472523366312291255132
Percentage of DerivativeLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeNotionalAmount atus:DerivativeInstrumentName, us-gaap:DerivativeInstrumentRisk

us-gaap:DerivativeNotionalAmount

atus:DerivativeInstrumentMaturityDate2025Fixed1458AndMaturityDate2022Counterswap2733, us-gaap:InterestRateSwap


Derivative
Period End2020-12-312020-09-302020-06-302020-03-31
Value3850385038501000
Percentage of DerivativeNotionalAmount100.0100.0100.0100.0

atus:DerivativeInstrumentNotionalAmount5000001458FixedRate, us-gaap:InterestRateSwap


Derivative
Period End2020-12-31
Value500
Percentage of DerivativeNotionalAmount13.0

us-gaap:DueFromRelatedParties us-gaap:CounterpartyName, us-gaap:RelatedPartyTransactionsByRelatedParty

us-gaap:DueFromRelatedParties

atus:AlticeManagementAmericas, srt:AffiliatedEntity


Due
Period End2020-09-302020-06-302020-03-312019-12-312018-12-312017-12-31
Value0.4240.4320.6314.0761.2710.033
Percentage of DueFromRelatedParties100.0100.0100.0100.0100.0100.0

atus:OtherRelatedParty, srt:AffiliatedEntity


Due
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value3.6693.7954.2621.1593.023.3042.6980.5770.4140.00.1460.031
Percentage of DueFromRelatedParties0.00.00.0273.3699.1523.666.20.00.00.011.593.9

us-gaap:DueFromRelatedParties us-gaap:RelatedPartyTransactionsByRelatedParty

srt:AffiliatedEntity


Due
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value4.2621.5833.4523.9356.7744.5541.2221.0211719
Percentage of DueFromRelatedParties0.0373.3799.1623.6166.20.00.00.01381.459890.9

us-gaap:DueFromRelatedPartiesCurrent

us-gaap:DueFromRelatedPartiesCurrent


Due
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
Value3.6693.7954.2621.5833.4523.9356.7744.5541.2221.0211718172121214022
Percentage of DueFromRelatedPartiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DueFromRelatedPartiesCurrent dei:LegalEntity

atus:CSCHoldings


Due
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value3.6693.7954.2621.5833.3223.9356.7744.385
Percentage of DueFromRelatedPartiesCurrent100.0100.0100.0100.096.2100.0100.025.0

us-gaap:DueToAffiliateCurrent

us-gaap:DueToAffiliateCurrent


Due
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
Value14128.5385.6425.7228.5117.4566.9046.4795.53826232411132921127
Percentage of DueToAffiliateCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DueToAffiliateCurrent dei:LegalEntity

atus:CSCHoldings


Due
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value14128.5385.6425.7228.5117.456179
Percentage of DueToAffiliateCurrent100.0100.0100.0100.0100.0100.0100.0687.5

us-gaap:DueToRelatedPartiesCurrentAndNoncurrent dei:LegalEntity, us-gaap:CounterpartyName, us-gaap:RelatedPartyTransactionsByRelatedParty

us-gaap:DueToRelatedPartiesCurrentAndNoncurrent

atus:CSCHoldings, atus:OtherRelatedParty, srt:AffiliatedEntity


Due
Period End2020-12-312019-12-312018-12-31
Value0.67.4560.022
Percentage of DueToRelatedPartiesCurrentAndNoncurrent100.0100.0100.0

us-gaap:DueToRelatedPartiesCurrentAndNoncurrent us-gaap:CounterpartyName, us-gaap:RelatedPartyTransactionsByRelatedParty

atus:AlticeManagementInternational, srt:AffiliatedEntity


Due
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-312017-12-31
Value13117.9385.6425.7228.5110.0150.0
Percentage of DueToRelatedPartiesCurrentAndNoncurrent0.00.01323.00.00.00.00.069250.00.0

atus:OtherRelatedParty, srt:AffiliatedEntity


Due
Period End2021-06-302021-03-312020-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value0.8641.2260.64.4864.5443.1875.9753.611
Percentage of DueToRelatedPartiesCurrentAndNoncurrent0.00.0100.00.00.00.027159.10.0

us-gaap:DueToRelatedPartiesCurrentAndNoncurrent us-gaap:RelatedPartyTransactionsByRelatedParty

srt:AffiliatedEntity


Due
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value14128.5385.6425.7228.5117.4566.9046.4795.5382610
Percentage of DueToRelatedPartiesCurrentAndNoncurrent0.00.01423.00.00.00.0100.00.00.00.0118618.20.0

us-gaap:EmployeeRelatedLiabilitiesCurrent

us-gaap:EmployeeRelatedLiabilitiesCurrent


Employee
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value108104142125109104111128133100139123122104132130125232
Percentage of EmployeeRelatedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EmployeeRelatedLiabilitiesCurrent dei:LegalEntity

atus:CSCHoldings


Employee
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value108104142125109104111139
Percentage of EmployeeRelatedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0

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
Value199179159155136916947272725
Percentage of FinanceLeaseLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeaseLiabilityCurrent

us-gaap:FinanceLeaseLiabilityCurrent


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
Value89766359493022126.4646.2935.928
Percentage of FinanceLeaseLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeaseLiabilityNoncurrent

us-gaap:FinanceLeaseLiabilityNoncurrent


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
Value110103969586604734202119
Percentage of FinanceLeaseLiabilityNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeaseLiabilityPaymentsDue

us-gaap:FinanceLeaseLiabilityPaymentsDue


Finance
Period End2021-06-302021-03-312020-12-312020-09-30
Value211190170166
Percentage of FinanceLeaseLiabilityPaymentsDue100.0100.0100.0100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:FinanceLeaseLiabilityPaymentsDueAfterYearFive


Finance
Period End2020-09-302019-12-312019-09-302019-06-30
Value319000.0283000.03626000.02884000.0
Percentage of FinanceLeaseLiabilityPaymentsDueAfterYearFive100.0100.0100.0100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:FinanceLeaseLiabilityPaymentsDueNextTwelveMonths


Finance
Period End2021-06-302021-03-312020-12-312020-09-30
Value48627019
Percentage of FinanceLeaseLiabilityPaymentsDueNextTwelveMonths100.0100.0100.0100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFive

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFive


Finance
Period End2021-06-302021-03-312020-12-312020-09-302019-12-312019-09-302019-06-30
Value291000.0292000.0319000.03456000.03343000.05788000.05282000.0
Percentage of FinanceLeaseLiabilityPaymentsDueYearFive100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFour

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFour


Finance
Period End2021-06-302021-03-312020-12-312020-09-302019-12-312019-09-302019-06-30
Value115.2313.456235.788105.824
Percentage of FinanceLeaseLiabilityPaymentsDueYearFour100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueYearThree

us-gaap:FinanceLeaseLiabilityPaymentsDueYearThree


Finance
Period End2021-06-302021-03-312020-12-312020-09-302019-12-312019-09-302019-06-30
Value5743305718135.853
Percentage of FinanceLeaseLiabilityPaymentsDueYearThree100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueYearTwo

us-gaap:FinanceLeaseLiabilityPaymentsDueYearTwo


Finance
Period End2021-06-302021-03-312020-12-312020-09-302019-12-312019-09-302019-06-30
Value9278656222157.173
Percentage of FinanceLeaseLiabilityPaymentsDueYearTwo100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeaseLiabilityUndiscountedExcessAmount

us-gaap:FinanceLeaseLiabilityUndiscountedExcessAmount


Finance
Period End2020-12-31
Value10
Percentage of FinanceLeaseLiabilityUndiscountedExcessAmount100.0

us-gaap:FinanceLeaseRightOfUseAsset

us-gaap:FinanceLeaseRightOfUseAsset


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
Value237195170157137937049282830
Percentage of FinanceLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeaseWeightedAverageDiscountRatePercent

us-gaap:FinanceLeaseWeightedAverageDiscountRatePercent


Finance
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value5.045.165.420.05660.0555.390.05860.0582
Percentage of FinanceLeaseWeightedAverageDiscountRatePercent100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FiniteLivedCustomerRelationshipsGross us-gaap:BusinessAcquisition

us-gaap:FiniteLivedCustomerRelationshipsGross

atus:LightpathAcquiredAssets


Finite
Period End2021-06-30
Value2.294
Percentage of FiniteLivedCustomerRelationshipsGross100.0

atus:NorthCarolinaAssets


Finite
Period End2021-06-30
Value58
Percentage of FiniteLivedCustomerRelationshipsGross2562.2

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value47364574440942274054387136703476328430832882267424662240200816481222666
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization dei:LegalEntity

atus:CSCHoldings


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value47364574440942274054387136702882
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:CustomerRelationships


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value37553618347833213174301728432676251223372162197917971603140912071002580
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization79.379.178.978.678.377.977.577.076.575.875.074.072.971.670.273.282.187.0

us-gaap:OtherIntangibleAssets


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value3937363533312825222018161412108.8055.6843.093
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization0.80.80.80.80.80.80.80.70.70.70.60.60.60.60.50.50.50.5

us-gaap:TradeNames


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value94191789487084682279877374972570167865462458843221383
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization19.920.120.320.620.921.321.822.322.823.524.425.426.527.929.326.217.512.5

us-gaap:FiniteLivedIntangibleAssetsGross

us-gaap:FiniteLivedIntangibleAssetsGross


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value725371907190718971527151715171517149707570757075707570757075707570737019
Percentage of FiniteLivedIntangibleAssetsGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsGross us-gaap:BusinessAcquisition, us-gaap:FiniteLivedIntangibleAssetsByMajorClass

atus:NewJerseyCableAssets, us-gaap:CustomerRelationships


Finite
Period End2020-07-14
Value33
Percentage of FiniteLivedIntangibleAssetsGross0.0

us-gaap:FiniteLivedIntangibleAssetsGross us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:CustomerRelationships


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value611360526052605160176017601760176017597059705970597059705970597059705925
Percentage of FiniteLivedIntangibleAssetsGross84.384.284.284.284.184.184.184.184.284.484.484.484.484.484.484.484.484.4

us-gaap:OtherIntangibleAssets


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value585656565353535350373737373737373626
Percentage of FiniteLivedIntangibleAssetsGross0.80.80.80.80.70.70.70.70.70.50.50.50.50.50.50.50.50.4

us-gaap:TradeNames


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value108110811081108110811081108110811081106710671067106710671067106710661066
Percentage of FiniteLivedIntangibleAssetsGross14.915.015.015.015.115.115.115.115.115.115.115.115.115.115.115.115.115.2

us-gaap:InterestPayableCurrent

us-gaap:InterestPayableCurrent


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value253233252223381252385278335272386321398296397315426576
Percentage of InterestPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestPayableCurrent dei:LegalEntity

atus:CSCHoldings


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value253233252223381252385366
Percentage of InterestPayableCurrent100.0100.0100.0100.0100.0100.0100.094.9

us-gaap:InvestmentsFairValueDisclosure us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:InvestmentsFairValueDisclosure

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring


Investments
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-31
Value23242250198716741476193119361816171714621720
Percentage of InvestmentsFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths


Lessee
Period End2021-06-302021-03-312020-12-312020-09-30
Value16304211
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths100.0100.0100.0100.0

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

us-gaap:LettersOfCreditOutstandingAmount

us-gaap:RevolvingCreditFacility, atus:CSCHoldingsRevolvingCreditFacility


Letters
Period End2021-06-302021-03-312020-12-312020-09-302018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value13913713713713913811511512391
Percentage of LettersOfCreditOutstandingAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LimitedLiabilityCompanyLlcMembersEquityIncludingPortionAttributableToNoncontrollingInterest dei:LegalEntity

us-gaap:LimitedLiabilityCompanyLlcMembersEquityIncludingPortionAttributableToNoncontrollingInterest

atus:CSCHoldings


Limited
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-12-31
Value-1365.47-1396.333-1230.96848983412522053240328573352399994468858
Percentage of LimitedLiabilityCompanyLlcMembersEquityIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LineOfCredit us-gaap:CreditFacility, us-gaap:DebtInstrument

us-gaap:LineOfCredit

us-gaap:RevolvingCreditFacility, atus:CSCHoldingsRevolvingCreditFacility


Line
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value3175666161900.00.00.02315540.00.04251149622145
Percentage of LineOfCredit100.0100.0100.0100.00.00.00.0100.0100.00.00.0100.0100.0100.0100.0

us-gaap:SecuredDebt, atus:CSCHoldingsTermLoanB


Line
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-312017-12-31
Value287028772884289028972904291129392967
Percentage of LineOfCredit904.2507.7468.21519.00.00.00.01270.1697.5

us-gaap:SecuredDebt, atus:CablevisionLightpathTermBLoan


Line
Period End2021-06-302021-03-312020-12-31
Value580581582
Percentage of LineOfCredit183.0102.794.6

us-gaap:SecuredDebt, atus:IncrementalTermLoanB3


Line
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-312017-12-31
Value124212451248125112541257126012680.0
Percentage of LineOfCredit391.4219.7202.6657.40.00.00.0548.30.0

us-gaap:SecuredDebt, atus:IncrementalTermLoanB5


Line
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value29432950295629632970297729760.0
Percentage of LineOfCredit927.2520.5480.01557.10.00.00.00.0

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

us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity

us-gaap:RevolvingCreditFacility, atus:CSCHoldingsRevolvingCreditFacility


Line
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-312017-12-312016-06-21
Value24752475227522752275227522752504502300
Percentage of LineOfCreditFacilityMaximumBorrowingCapacity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevolvingCreditFacility, atus:CablevisionLightpathLLCRevolvingCreditFacility


Line
Period End2020-09-30
Value100
Percentage of LineOfCreditFacilityMaximumBorrowingCapacity4.4

us-gaap:SecuredDebt, atus:IncrementalTermLoanB5


Line
Period End2020-12-31
Value3000
Percentage of LineOfCreditFacilityMaximumBorrowingCapacity131.9

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

us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity

us-gaap:RevolvingCreditFacility, atus:CSCHoldingsRevolvingCreditFacility


Line
Period End2021-06-302021-03-312020-12-312020-09-302018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value2010176217122137158521612184173410011558
Percentage of LineOfCreditFacilityRemainingBorrowingCapacity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalAfterYearFive

us-gaap:LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalAfterYearFive


Long
Period End2021-06-302021-03-312020-09-302019-12-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value1923618735209821873514351172811727916228137961448614487
Percentage of LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalAfterYearFive100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearFive

us-gaap:LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearFive


Long
Period End2021-06-302021-03-312020-09-302019-12-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value2823282310062823295770970870869349284402
Percentage of LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearFive100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearFour

us-gaap:LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearFour


Long
Period End2021-06-302021-03-312020-09-302019-12-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value1153140318351453710434637693769418315921593
Percentage of LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearFour100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearThree

us-gaap:LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearThree


Long
Period End2021-06-302021-03-312020-09-302019-12-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value184118417281841400256356116101615574575
Percentage of LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearThree100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearTwo

us-gaap:LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearTwo


Long
Period End2021-06-302021-03-312020-09-302019-12-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value768734118273458964263961258316131606
Percentage of LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearTwo100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LongTermDebtAndCapitalLeaseObligationsRepaymentsOfPrincipalInNextTwelveMonths

us-gaap:LongTermDebtAndCapitalLeaseObligationsRepaymentsOfPrincipalInNextTwelveMonths


Long
Period End2021-06-302021-03-312020-09-302019-12-312018-12-312017-12-31
Value113411661911926841635
Percentage of LongTermDebtAndCapitalLeaseObligationsRepaymentsOfPrincipalInNextTwelveMonths100.0100.0100.0100.0100.0100.0

us-gaap:MembersEquity dei:LegalEntity

us-gaap:MembersEquity

atus:CSCHoldings


Members
Period End2020-09-302020-06-302020-03-312019-12-312018-12-31
Value492830125720333451
Percentage of MembersEquity100.0100.0100.0100.0100.0

us-gaap:MembersEquity dei:LegalEntity, us-gaap:StatementEquityComponents

atus:CSCHoldings, us-gaap:AdditionalPaidInCapital


Members