ECOL


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

Table of contents



us-gaap:CommonStockValue

us-gaap:CommonStockSharesIssued

us-gaap:CommonStockSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:GrossProfit

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxesPaidNet

us-gaap:InterestExpense
us-gaap:DerivativeInstrumentRisk, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:InterestPaidNet

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted

us-gaap:NonoperatingIncomeExpense

us-gaap:OperatingIncomeLoss

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:ProfitLoss

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

us-gaap:SellingGeneralAndAdministrativeExpense

us-gaap:Assets
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:Liabilities

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents

us-gaap:AssetsCurrent
us-gaap:StatementGeographical
us-gaap:Cash

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:PrepaidExpenseAndOtherAssetsCurrent

us-gaap:NoncurrentAssets
us-gaap:StatementGeographical

us-gaap:AmortizationOfIntangibleAssets

us-gaap:Goodwill
us-gaap:BusinessAcquisition
us-gaap:ReportingUnit
us-gaap:StatementBusinessSegments
us-gaap:IndefiniteLivedIntangibleAssetsByMajorClass
us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:FiniteLivedIntangibleAssetsNet
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OtherAssetsNoncurrent

us-gaap:AccountsPayableCurrent

us-gaap:AccruedIncomeTaxesCurrent

us-gaap:AccruedLiabilitiesCurrent

us-gaap:ContractWithCustomerLiabilityCurrent

us-gaap:DebtCurrent

us-gaap:LiabilitiesCurrent

us-gaap:LongTermDebtCurrent

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:LongTermDebt

us-gaap:LongTermDebtNoncurrent

us-gaap:DeferredIncomeTaxLiabilitiesNet

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:OperatingLeaseLiability

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents

us-gaap:CommonStockValue

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax
us-gaap:StatementEquityComponents
us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:DepreciationDepletionAndAmortization
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:ProfitLoss

us-gaap:ShareBasedCompensation

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:PaymentsToAcquireProductiveAssets
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:ProceedsFromIssuanceOfLongTermDebt

us-gaap:RepaymentsOfLongTermDebt

us-gaap:PaymentsOfDividendsCommonStock

us-gaap:PaymentsForRepurchaseOfCommonStock

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

us-gaap:DeferredTaxLiabilities

us-gaap:DeferredTaxAssetsNet

us-gaap:UnrecognizedTaxBenefits

us-gaap:DeferredTaxAssetsValuationAllowance

ecol:AccretionAndNonCashAdjustmentOfClosurePostClosureLiabilities

ecol:AdjustedEbitda
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:StatementEquityComponents
ecol:AdjustmentsToAdditionalPaidInCapitalShareBasedPaymentsOfBusinessDevelopmentAndIntegrationExpenses

ecol:AmortizationAndWriteOffOfDebtDiscount

ecol:AmortizationAndWriteOffOfDebtIssuanceCosts

ecol:DecreaseInRestrictedCashAndInvestments

ecol:DecreaseIncreaseInIncomeTaxProvisionIfUnrecognizedTaxBenefitsAreRecognized
us-gaap:FinancialInstrument
ecol:EquitySecuritiesWithoutReadilyDeterminableFairValueChangeInFairValue

ecol:FairValueChangeMinorityInterestInvestment
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
ecol:ForeignCurrencyTranslationFairValueDisclosure

ecol:GoodwillTranslationAdjustmentsAndOtherAdjustments
us-gaap:StatementBusinessSegments

ecol:IncreaseDecreaseAccruedCappingClosurePostClosureAndEnvironmentalCosts
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
ecol:IncreaseDecreaseInContingentConsiderationFairValueDisclosure

ecol:IncrementalCommonSharesAttributableToShareBasedPaymentAwardsAndWarrants
us-gaap:DerivativeInstrumentRisk, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents
ecol:InterestNetOfTax
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
ecol:PaymentOfContingentConsideration

ecol:PaymentsToAcquirePrivateEquityInvestment
us-gaap:BalanceSheetLocation, us-gaap:FinancialInstrument
us-gaap:ProductOrService, us-gaap:StatementScenario
ecol:PercentageOfRevenue

ecol:RestrictedStockIssuedFromTreasuryShares
us-gaap:ReportingUnit
ecol:ReversalOfImpairmentCharges

ecol:ShareBasedBusinessDevelopmentAndIntegrationExpenses
us-gaap:StatementEquityComponents
ecol:StockIssuedDuringPeriodValueRestrictedStockAwardAndShareBasedCompensation
us-gaap:StatementEquityComponents
ecol:StockIssuedDuringPeriodValueStockOptionsCommonStockAndRestrictedCommonStock

ecol:UnrecognizedTaxBenefitsPeriodIncreaseDecrease1

us-gaap:AssetRetirementObligationAccretionExpense

us-gaap:AssetRetirementObligationForeignCurrencyTranslationGainLoss

us-gaap:AssetRetirementObligationLiabilitiesSettled

us-gaap:BusinessCombinationAcquisitionRelatedCosts
us-gaap:BusinessAcquisition
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationConsiderationTransferred1

us-gaap:BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1

us-gaap:BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual

us-gaap:BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual

us-gaap:CapitalExpendituresIncurredButNotYetPaid

us-gaap:ContractWithCustomerLiabilityRevenueRecognized

us-gaap:DepreciationAmortizationAndAccretionNet

us-gaap:DirectOperatingCosts
us-gaap:StatementEquityComponents
us-gaap:DividendsCommonStockCash

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
us-gaap:FinancialInstrument
us-gaap:EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentAnnualAmount
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements

us-gaap:FinanceLeaseInterestExpense

us-gaap:FinanceLeaseInterestPaymentOnLiability

us-gaap:FinanceLeasePrincipalPayments

us-gaap:FinanceLeaseRightOfUseAssetAmortization

us-gaap:ForeignCurrencyTransactionGainLossBeforeTax

us-gaap:ForeignCurrencyTransactionGainLossUnrealized

us-gaap:GainLossOnDispositionOfAssets1

us-gaap:GoodwillAndIntangibleAssetImpairment

us-gaap:GoodwillImpairmentLoss
us-gaap:ReportingUnit, us-gaap:StatementBusinessSegments
us-gaap:StatementBusinessSegments
us-gaap:ReportingUnit
us-gaap:GoodwillPeriodIncreaseDecrease
us-gaap:BusinessAcquisition
us-gaap:GoodwillPurchaseAccountingAdjustments
us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments
us-gaap:IndefiniteLivedIntangibleAssetsByMajorClass
us-gaap:ImpairmentOfIntangibleAssetsFinitelived

us-gaap:IncreaseDecreaseInAccountsAndOtherReceivables

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities

us-gaap:IncreaseDecreaseInAccruedIncomeTaxesPayable

us-gaap:IncreaseDecreaseInContractWithCustomerLiability

us-gaap:IncreaseDecreaseInDeferredIncomeTaxes

us-gaap:IncreaseDecreaseInEmployeeRelatedLiabilities

us-gaap:IncreaseDecreaseInIncomeTaxesReceivable

us-gaap:IncreaseDecreaseInOtherOperatingAssets

us-gaap:InvestmentIncomeInterest

us-gaap:LeaseCost
us-gaap:StatementEquityComponents
us-gaap:OciBeforeReclassificationsNetOfTaxAttributableToParent

us-gaap:OperatingLeaseCost

us-gaap:OperatingLeasePayments

us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTaxParent
us-gaap:StatementEquityComponents
us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent

us-gaap:PaymentForContingentConsiderationLiabilityFinancingActivities
us-gaap:LossContingenciesByNatureOfContingency
us-gaap:PaymentsForLegalSettlements

us-gaap:PaymentsOfFinancingCosts

us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired

us-gaap:PaymentsToAcquireRestrictedInvestments

us-gaap:ProceedsFromInsuranceSettlementInvestingActivities

us-gaap:ProceedsFromLinesOfCredit

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities

us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment

us-gaap:ProceedsFromSaleOfRestrictedInvestments
us-gaap:StatementEquityComponents
us-gaap:ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent

us-gaap:RepaymentsOfDebtAndCapitalLeaseObligations

us-gaap:RepaymentsOfLinesOfCredit

us-gaap:RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodValueShareBasedCompensationGross
us-gaap:StatementEquityComponents
us-gaap:StockRepurchasedDuringPeriodValue
us-gaap:StatementEquityComponents
us-gaap:StockholdersEquityOther
us-gaap:ShareRepurchaseProgram
us-gaap:TreasuryStockAcquiredAverageCostPerShare
us-gaap:ShareRepurchaseProgram
us-gaap:TreasuryStockValueAcquiredCostMethod
us-gaap:Range, us-gaap:FairValueByLiabilityClass, us-gaap:MeasurementInputType
ecol:AssetRetirementObligationsMeasurementInput
us-gaap:ReportingUnit, us-gaap:StatementBusinessSegments
ecol:CarryingValueGreaterThanFairValue

ecol:ClosureAndPostClosureAssets
us-gaap:BusinessAcquisition
ecol:DeferredTaxAssetsBusinessInterestExpenseCarryforwards

ecol:DeferredTaxAssetsEnvironmentalComplianceAndOtherSiteRelatedCosts

ecol:DeferredTaxAssetsForeignTaxCreditAndCapitalLossCarryforwards

ecol:DeferredTaxAssetsOperatingLeases
us-gaap:BusinessAcquisition
ecol:ForeignNetOperatingLosses
us-gaap:DerivativeInstrumentRisk, us-gaap:StatementEquityComponents
ecol:InterestRateCashFlowHedgeGainLossToBeReclassifiedDuringNext12MonthsNetOfTaxes

ecol:LesseeOperatingAndFinanceLeaseLiabilitiesInterestIncludedInPayments

ecol:LesseeOperatingAndFinanceLeaseLiabilityPaymentsDue

ecol:LesseeOperatingAndFinanceLeaseLiabilityPaymentsDueAfterYearFive

ecol:LesseeOperatingAndFinanceLeaseLiabilityPaymentsDueNextTwelveMonths

ecol:LesseeOperatingAndFinanceLeaseLiabilityPaymentsDueYearFive

ecol:LesseeOperatingAndFinanceLeaseLiabilityPaymentsDueYearFour

ecol:LesseeOperatingAndFinanceLeaseLiabilityPaymentsDueYearThree

ecol:LesseeOperatingAndFinanceLeaseLiabilityPaymentsDueYearTwo

ecol:LesseeOperatingAndFinanceLeasePresentValueOfLeaseLiabilities

ecol:LongTermDebtMaturityInYearFiveAndAfterYearFive

ecol:OperatingAndFinanceLeaseLeaseLiability

ecol:OperatingAndFinanceLeaseRightOfUseAsset
us-gaap:IncomeTaxAuthority
ecol:OperatingLossCarryforwardsIndefiniteLived

ecol:ReceivablesGrossCurrent
us-gaap:AwardType
ecol:StockPriceOnGrantDate

us-gaap:AccountsAndOtherReceivablesNetCurrent

us-gaap:AccountsReceivableGrossCurrent

us-gaap:AccruedCappingClosurePostClosureAndEnvironmentalCosts

us-gaap:AccruedCappingClosurePostClosureAndEnvironmentalCostsNoncurrent

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent

us-gaap:AssetRetirementObligation
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:AssetsFairValueDisclosure
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument
us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument
us-gaap:DebtInstrument
us-gaap:BankOverdrafts
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilities
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilities
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet

us-gaap:DebtInstrumentCarryingAmount
us-gaap:CreditFacility

us-gaap:DebtInstrumentFairValue
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FinancialInstrument
us-gaap:CreditFacility
us-gaap:DebtInstrumentInterestRateEffectivePercentage

us-gaap:DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet
us-gaap:CreditFacility
us-gaap:CreditFacility
us-gaap:DeferredFinanceCostsNet

us-gaap:DeferredIncomeTaxLiabilities

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsOperatingLossCarryforwards
us-gaap:BusinessAcquisition
us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsDomestic
us-gaap:BusinessAcquisition
us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther

us-gaap:DeferredTaxAssetsUnrealizedCurrencyLosses

us-gaap:DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets

us-gaap:DeferredTaxLiabilitiesLeasingArrangements

us-gaap:DeferredTaxLiabilitiesOther

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment

us-gaap:EmployeeRelatedLiabilitiesCurrent

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
us-gaap:DerivativeInstrumentRisk
us-gaap:FairValueHedgeLiabilitiesAtFairValue
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue

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:FinanceLeaseRightOfUseAssetAccumulatedAmortization

us-gaap:FinanceLeaseWeightedAverageDiscountRatePercent

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization
us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo

us-gaap:FiniteLivedIntangibleAssetsGross
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
us-gaap:StatementBusinessSegments
us-gaap:GoodwillImpairedAccumulatedImpairmentLoss
us-gaap:GuaranteeObligationsByNature
us-gaap:GuaranteeObligationsCurrentCarryingValue

us-gaap:IncomeTaxesReceivable
us-gaap:BusinessAcquisition
us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwillFairValueDisclosure
us-gaap:IndefiniteLivedIntangibleAssetsByMajorClass

us-gaap:IntangibleAssetsGrossExcludingGoodwill
us-gaap:DerivativeInstrumentRisk, us-gaap:StatementEquityComponents
us-gaap:InterestRateCashFlowHedgeGainLossToBeReclassifiedDuringNext12MonthsNet

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths
us-gaap:CreditFacility
us-gaap:LettersOfCreditOutstandingAmount
us-gaap:BalanceSheetLocation, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FinancialInstrument
us-gaap:LiabilitiesFairValueDisclosure
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument
us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument
us-gaap:CreditFacility
us-gaap:LineOfCredit
us-gaap:CreditFacility
us-gaap:LineOfCreditFacilityInterestRateAtPeriodEnd
us-gaap:CreditFacility
us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity

us-gaap:LinesOfCreditCurrent

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear

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

us-gaap:OtherReceivablesGrossCurrent

us-gaap:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization

us-gaap:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization

us-gaap:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization
us-gaap:PropertyPlantAndEquipmentByType

us-gaap:RestrictedCashAndCashEquivalents

us-gaap:RestrictedCashAndInvestmentsNoncurrent

us-gaap:SelfInsuranceReserve
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice
us-gaap:AwardType, us-gaap:PlanName
us-gaap:SharesIssuedPricePerShare

us-gaap:TreasuryStockCommonShares

us-gaap:TreasuryStockCommonValue

us-gaap:UnbilledReceivablesCurrent

us-gaap:UnrecognizedTaxBenefitsIncomeTaxPenaltiesAccrued

us-gaap:UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate

Plots across concepts


IncomeStatement
Comprehensive Income Net Of Tax
Expenses
Other Nonoperating Income Expense
Balance Sheet
Operating Lease Right Of Use Asset
Assets
Operating Lease Right Of Use Asset
Current Assets
Prepaid Expense And Other Assets Current
NonCurrent Assets
Other Assets Noncurrent
Liabilities
Operating Lease Liability
Current Liabilities
Accrued Income Taxes Current
Noncurrent Liabilities
Other Liabilities Noncurrent
Stockholders Equity
Retained Earnings Accumulated Deficit
CashFlow
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInOperatingActivities
Net Income Loss
NetCashProvidedByUsedInInvestingActivities
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInFinancingActivities
Net Cash Provided By Used In Financing Activities
Shares
Weighted Average Number Of Diluted Shares Outstanding
DividendsAndRepurchase
Payments For Repurchase Of Common Stock
OperatingLeaseLiability
Operating Lease Liability Current
NonoperatingIncomeExpense
Nonoperating Income Expense
LesseeOperatingLeaseLiabilityPaymentsDue
Lessee Operating Lease Liability Undiscounted Excess Amount
FiniteLivedIntangibleAssets
Finite Lived Intangible Assets Accumulated Amortization

Tables

  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
us-gaap:CommonStockValue ███████▁0.3150.3150.3150.3150.3150.3150.3150.221NANA0.22NANANA
us-gaap:CommonStockSharesIssued ███████▁31.51231.51231.51231.14431.13931.50331.46122.094NANA22.04NANANA
us-gaap:CommonStockSharesOutstanding ███████▁31.51231.51231.51231.14431.13931.50331.46122.094NANA22.04NANANA
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding █▁31.13731.104NA31.32431.05431.30527.91622.23122.20822.19722.10922.09922.02421.957
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic █▁31.13731.104NA31.06931.05431.305NA22.01322.00621.987NA21.928NANA
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount ▁█4.2274.369NA4.2334.264.131NA0.080.0920.079NA0.016NANA
us-gaap:EarningsPerShareBasic ▇█▅█▇▁▇█████-0.13-0.03-2.97000000000000060.2-0.17-9.52-0.250.590.70.370.63000000000000010.61NANA
us-gaap:EarningsPerShareDiluted ▇█▅█▇▁▇███████-0.13-0.03-2.97000000000000060.2-0.17-9.52-0.120.590.70.360.620.610.60.42
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
us-gaap:ComprehensiveIncomeNetOfTax ██▆██▁██████-5.3629.86-83.5328.981-5.169-312.443-1.88311.92515.9949.0418.24515.445NANA
us-gaap:GrossProfit ▅▅█▇▅▆█▅▄▁▃▄▂▁54.55352.87367.07363.04353.81161.12268.4756.5449.58335.24145.67547.341.44835.671
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest ▇▇▅█▇▁▇█████-3.906-2.24-97.1934.863-2.922-298.349-2.66919.49821.88611.08417.7916.827NANA
us-gaap:IncomeTaxExpenseBenefit ▄▃▁▃▅▄▄██▆▇▆0.257-1.444-4.784-1.4562.261-0.2630.7956.4286.3953.0414.0853.4NANA
us-gaap:IncomeTaxesPaidNet ▅▂▃█▁▂▇█▆▄▃2.9451.271.3894.7730.3711.2414.3554.7283.6092.0851.738NANANA
us-gaap:InterestExpense ▆▆▆▆▆█▆▂▂▂▁▁7.5217.3577.4687.9647.8539.317.733.8913.5884.033.3483.066NANA
us-gaap:InterestPaidNet ▆▆▆▆██▇▁▁▁▁6.4416.4046.666.4947.6377.6426.8643.493.3883.4623.245NANANA
us-gaap:NetIncomeLoss ██▆██▁████████-4.163-0.796-92.4096.319-5.183-298.086-3.46413.0715.4918.04313.70513.42713.229.243
 us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents us-gaap:RetainedEarnings██▆██▁██████-4.163-0.796-92.4096.319-5.183-298.086-3.46413.0715.4918.04313.70513.427NANA
us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted ██▆██▁██████-4.163-0.796-92.4096.319-5.183-298.086-3.46413.0715.4918.04313.70513.427NANA
us-gaap:NonoperatingIncomeExpense ▂▇▁▁▁▁▂▇▇▆█▇-7.29-3.745-8.034-8.29-8.246-8.113-7.699-3.713-3.648-3.852-2.582-3.158NANA
us-gaap:OperatingIncomeLoss █▇▅██▁████████3.3841.505-89.15913.1535.324-290.2365.0323.21125.53414.93620.37219.98520.29213.439
us-gaap:OtherNonoperatingIncomeExpense ▁█▂▁▁▁▁▁▁▁▁▁0.1963.710.4060.0860.1250.1710.1130.110.1220.110.1370.177NANA
us-gaap:ProfitLoss ██▆██▁█████-4.163-0.796-92.4096.319-5.183-298.086-3.46413.0715.4918.04313.705NANANA
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax █▇██▆█▇▄▃▂▃▃▂▁240.773228.619241.074238.142213.918240.72231.268167.402155.802131.037157.541151.416136.912120.059
us-gaap:SellingGeneralAndAdministrativeExpense ▆▆▆▆▆▆█▃▂▁▂▂51.16951.36851.63249.8948.48751.05863.4433.32924.04920.30525.30323.649NANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
us-gaap:Assets ▆▆▆▇▇▇█▂▂▁▁▁1825.7731823.1521831.2831946.2951956.1491978.6392231.2441000.149961.416933.332947.898853.174NANA
us-gaap:Liabilities ▇▇▇███▇▁1216.191210.4491229.3521262.5061283.2021302.3161219.864614.182NANA588.681NANANA
us-gaap:LiabilitiesAndStockholdersEquity ▆▆▆▆▆▇█▁1825.7731823.1521831.2831946.2951956.1491978.6392231.2441000.149NANA947.898NANANA
us-gaap:StockholdersEquity ▄▄▄▅▄▅█▁▁▁▁▁▁609.583612.703601.931683.789672.947676.3231011.38385.967376.759363.492359.217353.841340.3NA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
us-gaap:AssetsCurrent █▇▇███▆▁382.514367.923362.484377.855375.068387.58332.971197.7NANA194.668NANANA
 us-gaap:Cash us-gaap:StatementGeographical us-gaap:NonUsNANA59.3NANANA35.2NANANA19.4NANANA
us-gaap:CashAndCashEquivalentsAtCarryingValue ▆▅▅▇█▇▃▁▁▁▂▂85.19482.35473.848102.038122.521109.7941.28121.07417.6916.1231.96926.076NANA
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents ▆▅▅▇█▇▃▁▁▁▂▂86.77983.81975.104103.136123.334110.69342.1421.91518.50816.91732.75326.839NANA
us-gaap:PrepaidExpenseAndOtherAssetsCurrent ▇▆▇██▆▅▁28.68725.70928.37930.73930.52427.0825.13616.014NANA10.938NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
us-gaap:NoncurrentAssets ▇▇▇████▁954.759963.456980.6251022.4231039.5511049.4491053.67549.764NANA538.109NANANA
us-gaap:AmortizationOfIntangibleAssets ▇█████▅▂▂▁▁▁8.89.1359.5329.29.29.4416.8912.92.92.8112.722.3NANA
us-gaap:Goodwill ▃▃▃▄▄▄█▁413.761413.346413.037471.523469.278466.031766.98219.181NANA207.177NANANA
 us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill us-gaap:IndefiniteLivedIntangibleAssetsByMajorClass ecol:PermitsAndLicenses▅▅▅████▁82.74982.73982.732103.803103.79103.769103.81646.408NANA46.391NANANA
 us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill us-gaap:IndefiniteLivedIntangibleAssetsByMajorClass us-gaap:TradeNames█▇▆▄▃▁▅▄0.1370.1350.1330.1270.1250.120.130.128NANA0.125NANANA
us-gaap:IntangibleAssetsNetExcludingGoodwill ▆▇▇▇███▁506.897515.208523.988547.385555.973564.124574.902275.983NANA279.666NANANA
us-gaap:FiniteLivedIntangibleAssetsNet ▇▇▇▇▇██▁424.011432.334441.123443.455452.058460.235470.956229.447NANA233.15NANANA
us-gaap:OperatingLeaseRightOfUseAsset ▆▆▇▇▇██▁46.12548.82451.47450.97752.20255.84357.39617.496NANANANANANA
us-gaap:OtherAssetsNoncurrent ▇█▅▅▃▃▃▁22.71423.81918.06518.06614.87814.56815.15810.963NANA3.003NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
us-gaap:AccountsPayableCurrent █▆▄▅▅█▇▁50.83744.77335.88139.96638.04851.38746.90623.162NANA17.754NANANA
us-gaap:AccruedIncomeTaxesCurrent ▁▃▄▄█▅▃▂0.0460.8880.9771.0152.5721.3240.7260.275NANA0.505NANANA
us-gaap:AccruedLiabilitiesCurrent ▄▄▇▄▂▅█▁45.65247.359.29649.04738.75950.24565.86933.369NANA35.524NANANA
us-gaap:ContractWithCustomerLiabilityCurrent ▇▅▃▅▆█▃▁19.88617.52415.26717.54519.25821.69814.78812.278NANA10.451NANANA
us-gaap:DebtCurrent █▁▁▁▅▁▁9.6283.6353.3593.3597.3373.7543.359NANANANANANANA
us-gaap:LiabilitiesCurrent █▇▇▆▆▇█▁180.645165.36169.217158.589151.446170.994180.7797.198NANA83.232NANANA
us-gaap:LongTermDebtCurrent █▁███▁█3.3593.3583.3593.3593.3593.3583.359NANANANANANANA
us-gaap:OperatingLeaseLiabilityCurrent ▇▇█████▁15.4316.20817.04817.17517.31217.81317.3174.914NANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
us-gaap:LongTermDebt ▂▂▂▅██▁784.432785.279785.843826.682861.5858.757769.201NANANA364.0NANANA
us-gaap:LongTermDebtNoncurrent ▇▇▇███▇▁774.804781.644782.484823.323854.163855.003765.842354.0NANA364.0NANANA
us-gaap:DeferredIncomeTaxLiabilitiesNet ▇▇▇█▇▇█▁118.799119.701120.983125.134122.636122.396128.34568.399NANA63.206NANANA
us-gaap:OtherLiabilitiesNoncurrent ▅▅▇██▇▅▁20.5120.76732.20136.48235.16431.43920.7223.792NANA2.146NANANA
us-gaap:OperatingLeaseLiabilityNoncurrent ▆▆▇▇▇██▁31.5433.36235.06934.18135.12138.09239.95412.59NANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo NANA14.076NANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree NANA10.938NANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour NANA6.877NANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive NANA2.627NANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive NANA4.163NANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
us-gaap:StockholdersEquity ▄▄▄▅▄▅█▁▁▁▁▁▁609.583612.703601.931683.789672.947676.3231011.38385.967376.759363.492359.217353.841340.3NA
us-gaap:CommonStockValue ███████▁0.3150.3150.3150.3150.3150.3150.3150.221NANA0.22NANANA
us-gaap:AdditionalPaidInCapitalCommonStock ███████▁818.913817.818820.567819.344817.557817.73816.345185.94NANA183.834NANANA
us-gaap:RetainedEarningsAccumulatedDeficit ▁▁▁▃▃▃██-193.411-189.249-188.452-96.044-102.362-97.179206.574214.013NANA189.324NANANA
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax ██▅▂▁▁▆▅-5.201-4.002-14.658-23.535-26.197-26.211-11.854-13.435NANA-13.791NANANA
 us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue us-gaap:StatementEquityComponents us-gaap:AdditionalPaidInCapital█▇▆▆▄▄▆▂▂▂▁▂2.1071.9281.791.7731.5241.5641.8311.2461.2451.2221.0941.193NANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities ▅▃▅▅██▁▆▃▂▆24.61119.46323.90223.71830.1829.34615.61425.12820.3518.52425.989NANANA
us-gaap:NetCashProvidedByUsedInInvestingActivities ██████▁▇██▆-16.436-8.682-11.272-7.738-16.913-21.715-402.063-38.971-12.904-1.787-101.932NANANA
us-gaap:NetCashProvidedByUsedInFinancingActivities ▂▂▁▁▂▃█▂▂▁▃-6.131-2.774-43.057-37.001-2.14863.747406.28517.413-6.298-32.96682.912NANANA
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect ▃▄▁▂▄█▄▃▃▂▃2.968.715-28.032-20.19812.64168.55320.2253.4071.591-15.8365.914NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
us-gaap:DepreciationDepletionAndAmortization ██▅███▆▂▂▂▁▁27.93428.55121.4528.89228.87828.68522.64913.46713.12512.06111.40110.756NANA
us-gaap:NetCashProvidedByUsedInOperatingActivities ▅▃▅▅██▁▆▃▂▆24.61119.46323.90223.71830.1829.34615.61425.12820.3518.52425.989NANANA
us-gaap:NetIncomeLoss ██▆██▁████████-4.163-0.796-92.4096.319-5.183-298.086-3.46413.0715.4918.04313.70513.42713.229.243
 us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents us-gaap:RetainedEarnings██▆██▁██████-4.163-0.796-92.4096.319-5.183-298.086-3.46413.0715.4918.04313.70513.427NANA
us-gaap:ProfitLoss ██▆██▁█████-4.163-0.796-92.4096.319-5.183-298.086-3.46413.0715.4918.04313.705NANANA
us-gaap:ShareBasedCompensation █▇▆▆▄▄▆▂▂▂▁▂2.1071.9281.791.7731.5241.5641.8311.2461.2451.2221.0941.193NANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
us-gaap:NetCashProvidedByUsedInInvestingActivities ██████▁▇██▆-16.436-8.682-11.272-7.738-16.913-21.715-402.063-38.971-12.904-1.787-101.932NANANA
us-gaap:PaymentsToAcquirePropertyPlantAndEquipment ▆▂▄▂▆██▅▇▁▅16.8179.61412.2759.16716.82619.13119.65713.78617.4347.22314.966NANANA
us-gaap:PaymentsToAcquireProductiveAssets ▆▂▄▂▆██▅▇▁▅▃16.8179.61412.2759.16716.82619.13119.65713.78517.4347.22314.96610.83NANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
us-gaap:NetCashProvidedByUsedInFinancingActivities ▂▂▁▁▂▃█▂▂▁▃-6.131-2.774-43.057-37.001-2.14863.747406.28517.413-6.298-32.96682.912NANANA
us-gaap:ProceedsFromIssuanceOfLongTermDebt NANA0.00.00.090.0471.875NANANANANANANA
us-gaap:RepaymentsOfLongTermDebt ▂▁▇▅▁▁█▁▁▅7.1251.12541.12531.1251.1251.12550.00.00.030.0NANANANA
us-gaap:PaymentsOfDividendsCommonStock NANA0.00.00.05.6673.9753.9733.9723.973.966NANANA
us-gaap:PaymentsForRepurchaseOfCommonStock ▁▁▁▁▁█0.00.4650.00.00.018.332NANANA0.915NANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value315000.0315000.0315000.0315000.0315000.0315000.0315000.0221000.0220000.0
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.0

Common Stock Shares Issued

us-gaap:CommonStockSharesIssued

us-gaap:CommonStockSharesIssued


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value313131313131312222
Percentage of CommonStockSharesIssued100.0100.0100.0100.0100.0100.0100.0100.0100.0

Common Stock Shares Outstanding

us-gaap:CommonStockSharesOutstanding

us-gaap:CommonStockSharesOutstanding


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value313131313131312222
Percentage of CommonStockSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value31313131312722222222222221
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value313131313122222121
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0

Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount


Antidilutive
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value4227000.04369000.04233000.04260000.04131000.080000.092000.079000.016000.0
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareBasic


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-0.13-0.03-2.970.2-0.17-9.52-0.250.590.70.370.630.61
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareDiluted


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-0.13-0.03-2.970.2-0.17-9.52-0.120.590.70.360.620.610.60.42
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Comprehensive Income Net Of Tax

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTax


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-5.3629.86-83.5328.981-5.169-312.443-1.88311159.0418.24515
Percentage of ComprehensiveIncomeNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-2.24.3-34.63.8-2.4-129.8-0.87.110.36.95.210.2

Gross Profit

us-gaap:GrossProfit

us-gaap:GrossProfit


Gross
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value5452676353616856493545474135
Percentage of GrossProfit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax22.723.127.826.525.225.429.633.831.826.929.031.230.329.7

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

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-3.906-2.24-97.1934.863-2.922-298.349-2.6691921111716
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-1.6-1.0-40.32.0-1.4-123.9-1.211.614.08.511.311.1

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxExpenseBenefit


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value0.257-1.444-4.784-1.4562.261-0.2630.7956.4286.3953.0414.0853.4
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.1-0.6-2.0-0.61.1-0.10.33.84.12.32.62.2

Income Taxes Paid Net

us-gaap:IncomeTaxesPaidNet

us-gaap:IncomeTaxesPaidNet


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value2.9451.271.3894.7730.3711.2414.3554.7283.6092.0851.738
Percentage of IncomeTaxesPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.20.60.62.00.20.51.92.82.31.61.1

Interest Expense

us-gaap:InterestExpense

us-gaap:InterestExpense


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value7.5217.3577.4687.9647.8539.317.733.8913.5884.033.3483.066
Percentage of InterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.13.23.13.33.73.93.32.32.33.12.12.0

us-gaap:InterestExpense us-gaap:DerivativeInstrumentRisk, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:InterestRateSwap, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value1.11.11.11.20.7440.268-0.1310.0350.1270.139-0.0570.04
Percentage of InterestExpense14.615.014.715.19.52.9-1.70.93.53.4-1.71.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.50.50.50.50.30.1-0.10.00.10.1-0.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:InterestRateSwap us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome us-gaap:AccumulatedGainLossNetCashFlowHedgeParent0.00.00.00.00.00.00.00.00.00.00.00.0

Interest Paid Net

us-gaap:InterestPaidNet

us-gaap:InterestPaidNet


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value6.4416.4046.666.4947.6377.6426.8643.493.3883.4623.245
Percentage of InterestPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.72.82.82.73.63.23.02.12.22.62.1

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-4.163-0.796-92.4096.319-5.183-298.086-3.46413158.0431313139.243
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-1.7-0.3-38.32.7-2.4-123.8-1.57.89.96.18.78.99.77.7

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-4.163-0.796-92.4096.319-5.183-298.086-3.46413158.0431313
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-1.7-0.3-38.32.7-2.4-123.8-1.57.89.96.18.78.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.0

Net Income Loss Available To Common Stockholders Diluted

us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted

us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-4.163-0.796-92.4096.319-5.183-298.086-3.46413158.0431313
Percentage of NetIncomeLossAvailableToCommonStockholdersDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-1.7-0.3-38.32.7-2.4-123.8-1.57.89.96.18.78.9

Nonoperating Income Expense

us-gaap:NonoperatingIncomeExpense

us-gaap:NonoperatingIncomeExpense


Nonoperating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-7290000.0-3745000.0-8034000.0-8290000.0-8246000.0-8113000.0-7699000.0-3713000.0-3648000.0-3852000.0-2582000.0-3158000.0
Percentage of NonoperatingIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-3.0-1.6-3.3-3.5-3.9-3.4-3.3-2.2-2.3-2.9-1.6-2.1

Operating Income Loss

us-gaap:OperatingIncomeLoss

us-gaap:OperatingIncomeLoss


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value3.3841.505-89.159135.324-290.2365.0323251420192013
Percentage of OperatingIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.40.7-37.05.52.5-120.62.213.916.411.412.913.214.811.2

Other Nonoperating Income Expense

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:OtherNonoperatingIncomeExpense


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value196000.03710000.0406000.086000.0125000.0171000.0113000.0110000.0122000.0110000.0137000.0177000.0
Percentage of OtherNonoperatingIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.11.60.20.00.10.10.00.10.10.10.10.1

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value-4.163-0.796-92.4096.319-5.183-298.086-3.46413158.04313
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-1.7-0.3-38.32.7-2.4-123.8-1.57.89.96.18.7

Revenue From Contract With Customer Excluding Assessed Tax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax


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
Value240228241238213240231167155131157151136120
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ConsolidationItems, us-gaap:ProductOrService, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, ecol:DomesticStandbyServices, ecol:FieldAndIndustrialServicesSegment


Revenue
Period End2021-03-312020-12-312020-09-302020-06-302020-03-31
Value7.887.3047.8738.1029.467
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.43.03.33.83.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.43.03.33.83.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ecol:DomesticStandbyServices ecol:FieldAndIndustrialServicesSegment100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, ecol:EmergencyResponse, ecol:FieldAndIndustrialServicesSegment


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value303129302324173.2943.183.0463.3282.794
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.713.812.112.610.810.47.42.02.02.32.11.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.713.812.112.610.810.47.42.02.02.32.11.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ecol:EmergencyResponse ecol:FieldAndIndustrialServicesSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, ecol:IndustrialServices, ecol:EnergyWasteSegment


Revenue
Period End2021-06-302021-03-312020-06-302020-03-31
Value0.7020.4090.8971.966
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.30.20.40.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.30.20.40.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ecol:IndustrialServices ecol:EnergyWasteSegment100.0100.0100.0100.0

us-gaap:OperatingSegments, ecol:IndustrialServices, ecol:FieldAndIndustrialServicesSegment


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value322633282828234.854.9636.0169.7186.052
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax13.411.513.712.013.411.810.02.93.24.66.24.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax13.411.513.712.013.411.810.02.93.24.66.24.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ecol:IndustrialServices ecol:FieldAndIndustrialServicesSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, ecol:OtherServiceRevenue, ecol:EnergyWasteSegment


Revenue
Period End2021-06-302021-03-312020-06-302020-03-31
Value0.750.6350.6412.77
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.30.30.31.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.30.30.31.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ecol:OtherServiceRevenue ecol:EnergyWasteSegment100.0100.0100.0100.0

us-gaap:OperatingSegments, ecol:OtherServiceRevenue, ecol:FieldAndIndustrialServicesSegment


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value4.4193.4234.1614.4485.6774.9635.261.6010.7031.1250.421.846
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.81.51.71.92.72.12.31.00.50.90.31.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.81.51.71.92.72.12.31.00.50.90.31.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ecol:OtherServiceRevenue ecol:FieldAndIndustrialServicesSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, ecol:Remediation, ecol:FieldAndIndustrialServicesSegment


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value119.8278.3146.7333.117109.2851.3880.8891.7261.6852.296
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.94.33.42.81.54.34.00.80.61.31.11.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.94.33.42.81.54.34.00.80.61.31.11.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ecol:Remediation ecol:FieldAndIndustrialServicesSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, ecol:SmallQuantityGeneration, ecol:FieldAndIndustrialServicesSegment


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value1313121311119.955109.3268.1898.4968.611
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.75.75.35.55.24.64.36.06.06.25.45.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.75.75.35.55.24.64.36.06.06.25.45.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ecol:SmallQuantityGeneration ecol:FieldAndIndustrialServicesSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, ecol:TotalWasteManagement, ecol:FieldAndIndustrialServicesSegment


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value109.882109.9986.8488.4828.3998.6748.0048.7141210
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.34.34.24.23.23.53.65.25.16.77.96.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.34.34.24.23.23.53.65.25.16.77.96.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ecol:TotalWasteManagement ecol:FieldAndIndustrialServicesSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, ecol:TransportationAndLogistics, ecol:EnergyWasteSegment


Revenue
Period End2021-06-302021-03-312020-06-302020-03-31
Value1.6951.4011.6833.266
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.70.60.81.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.70.60.81.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ecol:TransportationAndLogistics ecol:EnergyWasteSegment100.0100.0100.0100.0

us-gaap:OperatingSegments, ecol:TransportationAndLogistics, ecol:EnvironmentalServicesSegment


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value18164.007211926262322142124
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.67.01.78.99.111.111.414.114.411.213.716.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.67.01.78.99.111.111.414.114.411.213.716.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ecol:TransportationAndLogistics ecol:EnvironmentalServicesSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, ecol:TransportationAndLogistics, ecol:FieldAndIndustrialServicesSegment


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value8.3586.32911116.9076.1548.91112127.093109.345
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.52.84.84.73.22.63.97.28.25.46.66.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.52.84.84.73.22.63.97.28.25.46.66.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ecol:TransportationAndLogistics ecol:FieldAndIndustrialServicesSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, ecol:TreatmentAndDisposal, ecol:EnergyWasteSegment


Revenue
Period End2021-06-302021-03-312020-06-302020-03-31
Value4.6023.7834.1459.332
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.91.71.93.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.91.71.93.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ecol:TreatmentAndDisposal ecol:EnergyWasteSegment100.0100.0100.0100.0

us-gaap:OperatingSegments, ecol:TreatmentAndDisposal, ecol:EnvironmentalServicesSegment


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value8988719190100999890778682
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax37.438.529.838.342.541.642.958.958.059.354.954.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax37.438.529.838.342.541.642.958.958.059.354.954.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ecol:TreatmentAndDisposal ecol:EnvironmentalServicesSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, ecol:TreatmentAndDisposal, ecol:FieldAndIndustrialServicesSegment


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value139.97714139.9659.9849.2393.3123.1332.7962.9663.221
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.54.45.85.84.74.14.02.02.02.11.92.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.54.45.85.84.74.14.02.02.02.11.92.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ecol:TreatmentAndDisposal ecol:FieldAndIndustrialServicesSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, ecol:EnergyWasteSegment


Revenue
Period End2021-06-302021-03-312020-06-302020-03-31
Value7.7496.2287.36617
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.22.73.47.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.22.73.47.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ecol:EnergyWasteSegment100.0100.0100.0100.0

us-gaap:OperatingSegments, ecol:EnvironmentalServicesSegment


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value1081047511211012612512211292108107
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax45.045.631.547.251.652.754.473.072.470.568.670.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax45.045.631.547.251.652.754.473.072.470.568.670.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ecol:EnvironmentalServicesSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, ecol:FieldAndIndustrialServicesSegment


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value1241181301251031131054542384944
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax51.851.754.252.848.447.345.627.027.629.531.429.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax51.851.754.252.848.447.345.627.027.629.531.429.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ecol:FieldAndIndustrialServicesSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:OperatingSegments, country:CA, ecol:EnvironmentalServicesSegment


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value161916171618212227142322
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.08.67.07.57.87.89.213.517.411.414.714.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.08.67.07.57.87.89.213.517.411.414.714.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments country:CA ecol:EnvironmentalServicesSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, country:CA, ecol:FieldAndIndustrialServicesSegment


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value0.8640.5790.4980.9910.4981.0771.7190.858
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.40.30.20.40.20.40.70.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.40.30.20.40.20.40.70.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments country:CA ecol:FieldAndIndustrialServicesSegment100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, country:US, ecol:EnergyWasteSegment


Revenue
Period End2021-06-302021-03-312020-06-302020-03-31
Value7.7496.2287.36617
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.22.73.47.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.22.73.47.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments country:US ecol:EnergyWasteSegment100.0100.0100.0100.0

us-gaap:OperatingSegments, country:US, ecol:EnvironmentalServicesSegment


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value91845894931071049985778485
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax38.036.924.439.743.844.845.259.555.159.053.856.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax38.036.924.439.743.844.845.259.555.159.053.856.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments country:US ecol:EnvironmentalServicesSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, country:US, ecol:FieldAndIndustrialServicesSegment


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value10810612211997105954442384944
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax45.146.450.950.245.743.841.526.527.629.531.429.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax45.146.450.950.245.743.841.526.527.629.531.429.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments country:US ecol:FieldAndIndustrialServicesSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, ecol:OtherRegions, ecol:FieldAndIndustrialServicesSegment


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value1.3681.6010.8660.9191.442.113
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.60.70.40.40.70.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.60.70.40.40.70.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments ecol:OtherRegions ecol:FieldAndIndustrialServicesSegment100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, us-gaap:EMEA, ecol:FieldAndIndustrialServicesSegment


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value13106.5984.1953.9155.239
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.84.42.71.81.82.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.84.42.71.81.82.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments us-gaap:EMEA ecol:FieldAndIndustrialServicesSegment100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService

ecol:DomesticStandbyServices


Revenue
Period End2021-03-312020-12-312020-09-302020-06-302020-03-31
Value7.887.3047.8738.1029.467
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.43.03.33.83.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.43.03.33.83.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ecol:DomesticStandbyServices100.0100.0100.0100.0100.0

ecol:EmergencyResponse


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value303129302324173.2943.183.0463.3282.794
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.713.812.112.610.810.47.42.02.02.32.11.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.713.812.112.610.810.47.42.02.02.32.11.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ecol:EmergencyResponse100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ecol:IndustrialServices


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value332637282828234.854.9636.0169.7186.052
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax13.711.715.412.013.411.810.02.93.24.66.24.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax13.711.715.412.013.411.810.02.93.24.66.24.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ecol:IndustrialServices100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ecol:OtherServiceRevenue


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value5.1694.0588.6024.4485.6774.9635.261.6010.7031.1250.421.846
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.11.83.61.92.72.12.31.00.50.90.31.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.11.83.61.92.72.12.31.00.50.90.31.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ecol:OtherServiceRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ecol:Remediation


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value119.8278.3146.7333.117109.2851.3880.8891.7261.6852.296
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.94.33.42.81.54.34.00.80.61.31.11.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.94.33.42.81.54.34.00.80.61.31.11.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ecol:Remediation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ecol:SmallQuantityGeneration


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value1313121311119.955109.3268.1898.4968.611
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.75.75.35.55.24.64.36.06.06.25.45.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.75.75.35.55.24.64.36.06.06.25.45.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ecol:SmallQuantityGeneration100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ecol:TotalWasteManagement


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value109.882109.9986.8488.4828.3998.6748.0048.7141210
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.34.34.24.23.23.53.65.25.16.77.96.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.34.34.24.23.23.53.65.25.16.77.96.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ecol:TotalWasteManagement100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ecol:TransportationAndLogistics


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value282322322632353535213233
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.810.49.513.612.313.615.321.322.616.620.322.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax11.810.49.513.612.313.615.321.322.616.620.322.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ecol:TransportationAndLogistics100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ecol:TreatmentAndDisposal


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value10710110410510011010810193808985
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax44.844.543.444.147.245.746.960.960.061.456.856.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax44.844.543.444.147.245.746.960.960.061.456.856.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ecol:TreatmentAndDisposal100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:StatementGeographical

country:CA


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value1720181719222327142322
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.48.97.98.08.39.914.017.411.414.714.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.48.97.98.08.39.914.017.411.414.714.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax country:CA100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

country:US


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value207196214191213200143128116134129
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax86.386.190.089.588.786.786.082.688.685.385.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax86.386.190.089.588.786.786.082.688.685.385.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax country:US100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ecol:OtherRegions


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-31
Value1.3681.6010.9191.442.113
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.60.70.40.70.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.60.70.40.70.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax ecol:OtherRegions100.0100.0100.0100.0100.0

us-gaap:EMEA


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-31
Value13104.1953.9155.239
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.84.41.81.82.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.84.41.81.82.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:EMEA100.0100.0100.0100.0100.0

Selling General And Administrative Expense

us-gaap:SellingGeneralAndAdministrativeExpense

us-gaap:SellingGeneralAndAdministrativeExpense


Selling
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value515151494851633324202523
Percentage of SellingGeneralAndAdministrativeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax21.322.521.420.922.721.227.419.915.415.516.115.6

Assets

us-gaap:Assets

us-gaap:Assets


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value18251823183119461956197822311000961933947853802
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value4951639710910275816868778067
Percentage of Assets2.72.93.55.05.65.23.48.17.17.38.29.58.5
Percentage of Assets2.72.93.55.05.65.23.48.17.17.38.29.58.5
Percentage of Assets us-gaap:CorporateNonSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, ecol:EnergyWasteSegment


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312020-06-302020-03-312019-12-31
Value223228231243250534
Percentage of Assets12.212.512.612.412.724.0
Percentage of Assets12.212.512.612.412.724.0
Percentage of Assets us-gaap:OperatingSegments ecol:EnergyWasteSegment100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, ecol:EnvironmentalServicesSegment


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value8037897739899909971290750725703701614609
Percentage of Assets44.043.342.250.850.650.457.875.175.475.474.072.075.9
Percentage of Assets44.043.342.250.850.650.457.875.175.475.474.072.075.9
Percentage of Assets us-gaap:OperatingSegments ecol:EnvironmentalServicesSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, ecol:FieldAndIndustrialServicesSegment


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value748753762859856878865167167161169157125
Percentage of Assets41.041.341.744.243.844.438.816.817.517.317.818.515.6
Percentage of Assets41.041.341.744.243.844.438.816.817.517.317.818.515.6
Percentage of Assets us-gaap:OperatingSegments ecol:FieldAndIndustrialServicesSegment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Liabilities

us-gaap:Liabilities

us-gaap:Liabilities


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value1216121012291262128313021219614588
Percentage of Liabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets66.666.467.164.965.665.854.761.462.1

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:LiabilitiesAndStockholdersEquity


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value18251823183119461956197822311000947
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312016-12-31
Value6096126016836726761011385376363359353340324280
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets33.433.632.935.134.434.245.338.639.238.937.941.50.040.40.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value0.6982.429-6.788-9.282-10.021-7.027-0.929-1.112-0.9620.2150.9062.15-0.501
Percentage of StockholdersEquity0.10.4-1.1-1.4-1.5-1.0-0.1-0.3-0.30.10.30.6-0.2
Percentage of Assets0.00.1-0.4-0.5-0.5-0.4-0.0-0.1-0.10.00.10.3-0.1
Percentage of Assets us-gaap:AccumulatedGainLossNetCashFlowHedgeParent0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312016-12-31
Value-5.201-4.002-14.658-23.535-26.197-26.211-11.854-13.435-12.29-12.793-13.791-8.331-10.349-9.104-14.725
Percentage of StockholdersEquity-0.9-0.7-2.4-3.4-3.9-3.9-1.2-3.5-3.3-3.5-3.8-2.4-3.0-2.8-5.3
Percentage of Assets-0.3-0.2-0.8-1.2-1.3-1.3-0.5-1.3-1.3-1.4-1.5-1.00.0-1.10.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedTranslationAdjustment


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value-5.899-6.431-7.87-14.253-16.176-19.184-10.925-12.323-11.328-13.008-14.697-10.481-8.603
Percentage of StockholdersEquity-1.0-1.0-1.3-2.1-2.4-2.8-1.1-3.2-3.0-3.6-4.1-3.0-2.7
Percentage of Assets-0.3-0.4-0.4-0.7-0.8-1.0-0.5-1.2-1.2-1.4-1.6-1.2-1.1
Percentage of Assets us-gaap:AccumulatedTranslationAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312016-12-31
Value818817820819817817816185184183183182180177172
Percentage of StockholdersEquity134.3133.5136.3119.8121.5120.980.748.249.050.651.251.653.154.861.7
Percentage of Assets44.944.944.842.141.841.336.618.619.219.719.421.40.022.10.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312016-12-31
Value0.3150.3150.3150.3150.3150.3150.0003150.2210.2210.2210.220.220.220.2180.000218
Percentage of StockholdersEquity0.10.10.10.00.00.00.00.10.10.10.10.10.10.10.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312016-12-31
Value-193.411-189.249-188.452-96.044-102.362-97.179206214204193189179170155121
Percentage of StockholdersEquity-31.7-30.9-31.3-14.0-15.2-14.420.455.454.453.252.750.850.048.043.5
Percentage of Assets-10.6-10.4-10.3-4.9-5.2-4.99.321.421.320.720.021.00.019.40.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TreasuryStockCommon


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312016-12-31
Value-11.033-12.179-15.841-16.291-16.366-18.332-0.772-0.835-1.286-0.37-0.37-0.37-0.068-0.052
Percentage of StockholdersEquity-1.8-2.0-2.6-2.4-2.4-2.7-0.2-0.2-0.4-0.1-0.1-0.1-0.0-0.0
Percentage of Assets-0.6-0.7-0.9-0.8-0.8-0.9-0.1-0.1-0.1-0.0-0.00.0-0.00.0
Percentage of Assets us-gaap:TreasuryStockCommon0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Assets Current

us-gaap:AssetsCurrent

us-gaap:AssetsCurrent


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value382367362377375387332197194
Percentage of AssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets21.020.219.819.419.219.614.919.820.5

Cash

us-gaap:Cash us-gaap:StatementGeographical

us-gaap:Cash

us-gaap:NonUs


Cashus-gaap:
Period End2020-12-312019-12-312018-12-31
Value593519
Percentage of Cash100.0100.0100.0
Percentage of Assets3.21.62.0
Percentage of Assets us-gaap:NonUs0.00.00.0

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashAndCashEquivalentsAtCarryingValue


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-312016-12-31
Value858273102122109412117163126277.015
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.74.54.05.26.35.51.92.11.81.73.43.13.40.0

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-312016-12-31
Value868375103123110422118163226288.722
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.84.64.15.36.35.61.92.21.91.83.53.13.60.0

Prepaid Expense And Other Assets Current

us-gaap:PrepaidExpenseAndOtherAssetsCurrent

us-gaap:PrepaidExpenseAndOtherAssetsCurrent


Prepaid
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value282528303027251610
Percentage of PrepaidExpenseAndOtherAssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.61.41.51.61.61.41.11.61.2

Noncurrent Assets

us-gaap:NoncurrentAssets

us-gaap:NoncurrentAssets


Noncurrent
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value9549639801022103910491053549538
Percentage of NoncurrentAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets52.352.853.552.553.153.047.255.056.8

us-gaap:NoncurrentAssets us-gaap:StatementGeographical

country:CA


Noncurrent
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value686868656564705757
Percentage of NoncurrentAssets7.17.17.06.46.36.16.710.510.7
Percentage of Assets3.73.83.73.43.43.33.25.86.1
Percentage of Assets country:CA0.00.00.00.00.00.00.00.00.0

country:US


Noncurrent
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value859866882922937946954491480
Percentage of NoncurrentAssets90.089.990.090.290.290.290.689.589.3
Percentage of Assets47.147.548.247.447.947.842.849.250.7
Percentage of Assets country:US0.00.00.00.00.00.00.00.00.0

ecol:OtherRegions


Noncurrent
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value1010111415165.29
Percentage of NoncurrentAssets1.11.11.21.41.51.50.5
Percentage of Assets0.60.60.60.70.80.80.2
Percentage of Assets ecol:OtherRegions0.00.00.00.00.00.00.0

us-gaap:EMEA


Noncurrent
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value16171820212223
Percentage of NoncurrentAssets1.71.81.82.02.02.22.2
Percentage of Assets0.90.91.01.01.11.21.1
Percentage of Assets us-gaap:EMEA0.00.00.00.00.00.00.0

Amortization Of Intangible Assets

us-gaap:AmortizationOfIntangibleAssets

us-gaap:AmortizationOfIntangibleAssets


Amortization
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value8.89.1359.5329.29.29.4416.8912.92.92.8112.722.3
Percentage of AmortizationOfIntangibleAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.0

Goodwill

us-gaap:Goodwill

us-gaap:Goodwill


Goodwill
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-312017-12-31
Value413413413471469466766219207189
Percentage of Goodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets22.722.722.624.224.023.634.421.921.923.6

us-gaap:Goodwill us-gaap:BusinessAcquisition

ecol:ImpactEnvironmentalServicesInc


Goodwillus-gaap:
Period End2021-03-312020-09-302020-06-302020-03-312020-01-28
Value0.30.30.30.3300
Percentage of Goodwill0.10.10.10.10.0
Percentage of Assets0.00.00.00.00.0
Percentage of Assets ecol:ImpactEnvironmentalServicesInc0.00.00.00.00.0

ecol:NrcGroupHoldingsCorp


Goodwillus-gaap:
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-11-01
Value577553551549548548
Percentage of Goodwill139.8117.4117.6117.971.50.0
Percentage of Assets31.528.428.227.824.60.0
Percentage of Assets ecol:NrcGroupHoldingsCorp0.00.00.00.00.00.0

us-gaap:Goodwill us-gaap:ReportingUnit

ecol:EnergyWasteDisposalServicesReportingUnit


Goodwillus-gaap:
Period End2020-09-302020-06-302020-03-31
Value282725
Percentage of Goodwill6.05.85.5
Percentage of Assets1.41.41.3
Percentage of Assets ecol:EnergyWasteDisposalServicesReportingUnit0.00.00.0

ecol:InternationalReportingUnit


Goodwillus-gaap:
Period End2020-09-302020-06-302020-03-31
Value1.81.71.6
Percentage of Goodwill0.40.40.3
Percentage of Assets0.10.10.1
Percentage of Assets ecol:InternationalReportingUnit0.00.00.0

us-gaap:Goodwill us-gaap:StatementBusinessSegments

ecol:EnergyWasteSegment


Goodwillus-gaap:
Period End2021-06-302021-03-312020-12-312019-12-31
Value399399399308
Percentage of Goodwill96.696.796.740.3
Percentage of Assets21.921.921.813.8
Percentage of Assets ecol:EnergyWasteSegment0.00.00.00.0

ecol:EnvironmentalServicesSegment


Goodwillus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-11-012019-09-302018-12-312017-12-31
Value167167166477476474475308165162150
Percentage of Goodwill40.440.440.4101.3101.5101.862.00.075.778.679.6
Percentage of Assets9.29.29.124.524.424.021.30.016.617.218.8
Percentage of Assets ecol:EnvironmentalServicesSegment0.00.00.00.00.00.00.00.00.00.00.0

ecol:FieldAndIndustrialServicesSegment


Goodwillus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-11-012019-09-302018-12-312017-12-31
Value237237237300300298298239605144
Percentage of Goodwill57.457.457.563.863.964.138.90.027.424.723.3
Percentage of Assets13.013.013.015.515.315.113.40.06.05.45.5
Percentage of Assets ecol:FieldAndIndustrialServicesSegment0.00.00.00.00.00.00.00.00.00.00.0

Indefinite Lived Intangible Assets Excluding Goodwill

us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill us-gaap:IndefiniteLivedIntangibleAssetsByMajorClass

us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill

ecol:PermitsAndLicenses


Indefinite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value8282821031031031034646
Percentage of IndefiniteLivedIntangibleAssetsExcludingGoodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.54.54.55.35.35.24.74.64.9
Percentage of Assets ecol:PermitsAndLicenses0.00.00.00.00.00.00.00.00.0

us-gaap:TradeNames


Indefinite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value0.1370.1350.1330.1270.1250.120.130.1280.125
Percentage of IndefiniteLivedIntangibleAssetsExcludingGoodwill0.20.20.20.10.10.10.10.30.3
Percentage of Assets0.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:TradeNames0.00.00.00.00.00.00.00.00.0

Intangible Assets Net Excluding Goodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill


Intangible
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value506515523547555564574275279
Percentage of IntangibleAssetsNetExcludingGoodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets27.828.328.628.128.428.525.827.629.5

Finite Lived Intangible Assets Net

us-gaap:FiniteLivedIntangibleAssetsNet

us-gaap:FiniteLivedIntangibleAssetsNet


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value424432441443452460470229233
Percentage of FiniteLivedIntangibleAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets23.223.724.122.823.123.321.122.924.6

us-gaap:FiniteLivedIntangibleAssetsNet us-gaap:FiniteLivedIntangibleAssetsByMajorClass

ecol:PermitsLicensesAndLeases


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value150151151152152153155147150
Percentage of FiniteLivedIntangibleAssetsNet35.434.934.434.333.833.333.064.464.4
Percentage of Assets8.28.38.37.87.87.87.014.815.8
Percentage of Assets ecol:PermitsLicensesAndLeases0.00.00.00.00.00.00.00.00.0

us-gaap:CustomerRelationships


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value2652712782782852912977273
Percentage of FiniteLivedIntangibleAssetsNet62.662.963.162.963.163.363.231.631.6
Percentage of Assets14.514.915.214.314.614.713.37.37.8
Percentage of Assets us-gaap:CustomerRelationships0.00.00.00.00.00.00.00.00.0

us-gaap:Databases


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value0.1650.170.1750.1810.1860.1910.1970.2020.217
Percentage of FiniteLivedIntangibleAssetsNet0.00.00.00.00.00.00.00.10.1
Percentage of Assets0.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:Databases0.00.00.00.00.00.00.00.00.0

us-gaap:InternetDomainNames


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value0.3380.3450.3520.3590.3660.3730.380.3870.408
Percentage of FiniteLivedIntangibleAssetsNet0.10.10.10.10.10.10.10.20.2
Percentage of Assets0.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:InternetDomainNames0.00.00.00.00.00.00.00.00.0

us-gaap:NoncompeteAgreements


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value0.4510.6681.2531.822.4653.1343.7610.8040.667
Percentage of FiniteLivedIntangibleAssetsNet0.10.20.30.40.50.70.80.40.3
Percentage of Assets0.00.00.10.10.10.20.20.10.1
Percentage of Assets us-gaap:NoncompeteAgreements0.00.00.00.00.00.00.00.00.0

us-gaap:OrderOrProductionBacklog


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value1.0831.1741.2651.3561.4481.5391.631.7221.996
Percentage of FiniteLivedIntangibleAssetsNet0.30.30.30.30.30.30.30.80.9
Percentage of Assets0.10.10.10.10.10.10.10.20.2
Percentage of Assets us-gaap:OrderOrProductionBacklog0.00.00.00.00.00.00.00.00.0

us-gaap:SoftwareDevelopment


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value0.5730.6460.720.7920.8660.9381.0111.0841.303
Percentage of FiniteLivedIntangibleAssetsNet0.10.10.20.20.20.20.20.50.6
Percentage of Assets0.00.00.00.00.00.00.00.10.1
Percentage of Assets us-gaap:SoftwareDevelopment0.00.00.00.00.00.00.00.00.0

us-gaap:TechnologyBasedIntangibleAssets


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value4.8664.8494.8494.6774.6354.5144.9514.9414.958
Percentage of FiniteLivedIntangibleAssetsNet1.11.11.11.11.01.01.12.22.1
Percentage of Assets0.30.30.30.20.20.20.20.50.5
Percentage of Assets us-gaap:TechnologyBasedIntangibleAssets0.00.00.00.00.00.00.00.00.0

us-gaap:TradeNames


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value0.951.6622.3753.1213.9334.7465.558
Percentage of FiniteLivedIntangibleAssetsNet0.20.40.50.70.91.01.2
Percentage of Assets0.10.10.10.20.20.20.2
Percentage of Assets us-gaap:TradeNames0.00.00.00.00.00.00.0

Operating Lease Right Of Use Asset

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OperatingLeaseRightOfUseAsset


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value4648515052555717
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.52.72.82.62.72.82.61.7

Other Assets Noncurrent

us-gaap:OtherAssetsNoncurrent

us-gaap:OtherAssetsNoncurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value22231818141415103.003
Percentage of OtherAssetsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.21.31.00.90.80.70.71.10.3

Accounts Payable Current

us-gaap:AccountsPayableCurrent

us-gaap:AccountsPayableCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value504435393851462317
Percentage of AccountsPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.82.52.02.11.92.62.12.31.9

Accrued Income Taxes Current

us-gaap:AccruedIncomeTaxesCurrent

us-gaap:AccruedIncomeTaxesCurrent


Accrued
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value46000.0888000.0977000.01015000.02572000.01324000.0726000.0275000.0505000.0
Percentage of AccruedIncomeTaxesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.10.10.10.10.00.00.1

Accrued Liabilities Current

us-gaap:AccruedLiabilitiesCurrent

us-gaap:AccruedLiabilitiesCurrent


Accrued
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value454759493850653335
Percentage of AccruedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.52.63.22.52.02.53.03.33.7

Contract With Customer Liability Current

us-gaap:ContractWithCustomerLiabilityCurrent

us-gaap:ContractWithCustomerLiabilityCurrent


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value191715171921141210
Percentage of ContractWithCustomerLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.11.00.80.91.01.10.71.21.1

Debt Current

us-gaap:DebtCurrent

us-gaap:DebtCurrent


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value9628000.03635000.03359000.03359000.07337000.03754000.03359000.0
Percentage of DebtCurrent100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.50.20.20.20.40.20.2

Liabilities Current

us-gaap:LiabilitiesCurrent

us-gaap:LiabilitiesCurrent


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value1801651691581511701809783
Percentage of LiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets9.99.19.28.17.78.68.19.78.8

Long Term Debt Current

us-gaap:LongTermDebtCurrent

us-gaap:LongTermDebtCurrent


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value3359000.03358000.03359000.03359000.03359000.03358000.03359000.0
Percentage of LongTermDebtCurrent100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.20.20.20.20.20.20.2

Operating Lease Liability Current

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OperatingLeaseLiabilityCurrent


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value151617171717174.914
Percentage of OperatingLeaseLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.80.90.90.90.90.90.80.5

Long Term Debt

us-gaap:LongTermDebt

us-gaap:LongTermDebt


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value784785785826861858769364
Percentage of LongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets43.043.142.942.544.043.434.538.4

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
Value774781782823854855765354364
Percentage of LongTermDebtNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets42.442.942.742.343.743.234.335.438.4

Deferred Income Tax Liabilities Net

us-gaap:DeferredIncomeTaxLiabilitiesNet

us-gaap:DeferredIncomeTaxLiabilitiesNet


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value1181191201251221221286863
Percentage of DeferredIncomeTaxLiabilitiesNet100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets6.56.66.66.46.36.25.86.86.7

Other Liabilities Noncurrent

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:OtherLiabilitiesNoncurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value202032363531203.7922.146
Percentage of OtherLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.11.11.81.91.81.60.90.40.2

Operating Lease Liability Noncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value3133353435383912
Percentage of OperatingLeaseLiabilityNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.71.81.91.81.81.91.81.3

Lessee Operating Lease Liability Payments Due Year Two

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo


Lessee
Period End2020-12-31
Value14
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearTwo100.0
Percentage of Assets0.8

Lessee Operating Lease Liability Payments Due Year Three

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree


Lessee
Period End2020-12-31
Value10
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearThree100.0
Percentage of Assets0.6

Lessee Operating Lease Liability Payments Due Year Four

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour


Lessee
Period End2020-12-31
Value6877000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFour100.0
Percentage of Assets0.4

Lessee Operating Lease Liability Payments Due Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive


Lessee
Period End2020-12-31
Value2627000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFive100.0
Percentage of Assets0.1

Lessee Operating Lease Liability Payments Due After Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive


Lessee
Period End2020-12-31
Value4163000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive100.0
Percentage of Assets0.2

Operating Lease Liability

us-gaap:OperatingLeaseLiability

us-gaap:OperatingLeaseLiability


Operating
Period End2020-12-312019-12-312019-09-30
Value525717
Percentage of OperatingLeaseLiability100.0100.0100.0
Percentage of Assets2.82.61.8

Lessee Operating Lease Liability Payments Due

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue


Lessee
Period End2020-12-31
Value56
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue100.0
Percentage of Assets3.1

Lessee Operating Lease Liability Undiscounted Excess Amount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount


Lessee
Period End2020-12-31
Value4383000.0
Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount100.0
Percentage of Assets0.2

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312016-12-31
Value6096126016836726761011385376363359353340324280
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets33.433.632.935.134.434.245.338.639.238.937.941.50.040.40.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value0.6982.429-6.788-9.282-10.021-7.027-0.929-1.112-0.9620.2150.9062.15-0.501
Percentage of StockholdersEquity0.10.4-1.1-1.4-1.5-1.0-0.1-0.3-0.30.10.30.6-0.2
Percentage of Assets0.00.1-0.4-0.5-0.5-0.4-0.0-0.1-0.10.00.10.3-0.1
Percentage of Assets us-gaap:AccumulatedGainLossNetCashFlowHedgeParent0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312016-12-31
Value-5.201-4.002-14.658-23.535-26.197-26.211-11.854-13.435-12.29-12.793-13.791-8.331-10.349-9.104-14.725
Percentage of StockholdersEquity-0.9-0.7-2.4-3.4-3.9-3.9-1.2-3.5-3.3-3.5-3.8-2.4-3.0-2.8-5.3
Percentage of Assets-0.3-0.2-0.8-1.2-1.3-1.3-0.5-1.3-1.3-1.4-1.5-1.00.0-1.10.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedTranslationAdjustment


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value-5.899-6.431-7.87-14.253-16.176-19.184-10.925-12.323-11.328-13.008-14.697-10.481-8.603
Percentage of StockholdersEquity-1.0-1.0-1.3-2.1-2.4-2.8-1.1-3.2-3.0-3.6-4.1-3.0-2.7
Percentage of Assets-0.3-0.4-0.4-0.7-0.8-1.0-0.5-1.2-1.2-1.4-1.6-1.2-1.1
Percentage of Assets us-gaap:AccumulatedTranslationAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312016-12-31
Value818817820819817817816185184183183182180177172
Percentage of StockholdersEquity134.3133.5136.3119.8121.5120.980.748.249.050.651.251.653.154.861.7
Percentage of Assets44.944.944.842.141.841.336.618.619.219.719.421.40.022.10.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312016-12-31
Value0.3150.3150.3150.3150.3150.3150.0003150.2210.2210.2210.220.220.220.2180.000218
Percentage of StockholdersEquity0.10.10.10.00.00.00.00.10.10.10.10.10.10.10.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312016-12-31
Value-193.411-189.249-188.452-96.044-102.362-97.179206214204193189179170155121
Percentage of StockholdersEquity-31.7-30.9-31.3-14.0-15.2-14.420.455.454.453.252.750.850.048.043.5
Percentage of Assets-10.6-10.4-10.3-4.9-5.2-4.99.321.421.320.720.021.00.019.40.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TreasuryStockCommon


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312016-12-31
Value-11.033-12.179-15.841-16.291-16.366-18.332-0.772-0.835-1.286-0.37-0.37-0.37-0.068-0.052
Percentage of StockholdersEquity-1.8-2.0-2.6-2.4-2.4-2.7-0.2-0.2-0.4-0.1-0.1-0.1-0.0-0.0
Percentage of Assets-0.6-0.7-0.9-0.8-0.8-0.9-0.1-0.1-0.1-0.0-0.00.0-0.00.0
Percentage of Assets us-gaap:TreasuryStockCommon0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value315000.0315000.0315000.0315000.0315000.0315000.0315000.0221000.0220000.0
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.0

Additional Paid In Capital Common Stock

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:AdditionalPaidInCapitalCommonStock


Additional
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value818817820819817817816185183
Percentage of AdditionalPaidInCapitalCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets44.944.944.842.141.841.336.618.619.4

Retained Earnings Accumulated Deficit

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:RetainedEarningsAccumulatedDeficit


Retained
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value-193.411-189.249-188.452-96.044-102.362-97.179206214189
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-10.6-10.4-10.3-4.9-5.2-4.99.321.420.0

Accumulated Other Comprehensive Income Loss Net Of Tax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value-5201000.0-4002000.0-14658000.0-23535000.0-26197000.0-26211000.0-11854000.0-13435000.0-13791000.0
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-0.3-0.2-0.8-1.2-1.3-1.3-0.5-1.3-1.5

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

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue us-gaap:StatementEquityComponents

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue

us-gaap:AdditionalPaidInCapital


Adjustments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value2107000.01928000.01790000.01773000.01524000.01564000.01831000.01246000.01245000.01222000.01094000.01193000.0
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

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value2419232330291525201825
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax10.28.59.910.014.112.26.815.013.114.116.5

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value-16436000.0-8682000.0-11272000.0-7738000.0-16913000.0-21715000.0-402060000.0-38971000.0-12904000.0-1787000.0-101930000.0
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-6.8-3.8-4.7-3.2-7.9-9.0-173.9-23.3-8.3-1.4-64.7

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value-6.131-2.774-43.057-37.001-2.1486340617-6.298-32.96682
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-2.5-1.2-17.9-15.5-1.026.5175.710.4-4.0-25.252.6

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

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value2.968.715-28.032-20.1981268203.4071.591-15.8365.914
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.23.8-11.6-8.55.928.58.72.01.0-12.13.8

Depreciation Depletion And Amortization

us-gaap:DepreciationDepletionAndAmortization

us-gaap:DepreciationDepletionAndAmortization


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value272821282828221313121110
Percentage of DepreciationDepletionAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DepreciationDepletionAndAmortization us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value0.790.7840.8790.760.670.6280.5010.3580.5970.3040.2980.316
Percentage of DepreciationDepletionAndAmortization2.82.74.12.62.32.22.22.74.52.52.62.9

us-gaap:DepreciationDepletionAndAmortization us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, ecol:EnergyWasteSegment


Depreciation
Period End2021-06-302021-03-312020-06-302020-03-31
Value4.814.9655.555.613
Percentage of DepreciationDepletionAndAmortization17.217.419.219.6

us-gaap:OperatingSegments, ecol:EnvironmentalServicesSegment


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value1011-6.4361615161310109.6259.1068.903
Percentage of DepreciationDepletionAndAmortization39.340.0-30.055.455.255.960.780.179.179.879.982.8

us-gaap:OperatingSegments, ecol:FieldAndIndustrialServicesSegment


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value11117.0451212128.4062.3192.1512.1321.9971.537
Percentage of DepreciationDepletionAndAmortization40.739.832.842.042.541.937.117.216.417.717.514.3

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value2419232330291525201825
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax10.28.59.910.014.112.26.815.013.114.116.5

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-4.163-0.796-92.4096.319-5.183-298.086-3.46413158.0431313139.243
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-1.7-0.3-38.32.7-2.4-123.8-1.57.89.96.18.78.99.77.7

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-4.163-0.796-92.4096.319-5.183-298.086-3.46413158.0431313
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-1.7-0.3-38.32.7-2.4-123.8-1.57.89.96.18.78.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.0

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value-4.163-0.796-92.4096.319-5.183-298.086-3.46413158.04313
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-1.7-0.3-38.32.7-2.4-123.8-1.57.89.96.18.7

Share Based Compensation

us-gaap:ShareBasedCompensation

us-gaap:ShareBasedCompensation


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value2107000.01928000.01790000.01773000.01524000.01564000.01831000.01246000.01245000.01222000.01094000.01193000.0
Percentage of ShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value-16436000.0-8682000.0-11272000.0-7738000.0-16913000.0-21715000.0-402060000.0-38971000.0-12904000.0-1787000.0-101930000.0
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-6.8-3.8-4.7-3.2-7.9-9.0-173.9-23.3-8.3-1.4-64.7

Payments To Acquire Property Plant And Equipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value169.614129.16716191913177.22314
Percentage of PaymentsToAcquirePropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Payments To Acquire Productive Assets

us-gaap:PaymentsToAcquireProductiveAssets

us-gaap:PaymentsToAcquireProductiveAssets


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value169.614129.16716191913177.2231410
Percentage of PaymentsToAcquireProductiveAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsToAcquireProductiveAssets us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value0.3590.255-0.0310.1771.5782.312.6890.5790.920.3330.0790.379
Percentage of PaymentsToAcquireProductiveAssets2.12.7-0.31.99.412.113.74.25.34.60.53.5

us-gaap:PaymentsToAcquireProductiveAssets us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, ecol:EnergyWasteSegment


Payments
Period End2021-06-302021-03-312020-06-302020-03-31
Value0.4690.2833.0581.391
Percentage of PaymentsToAcquireProductiveAssets2.82.918.27.3

us-gaap:OperatingSegments, ecol:EnvironmentalServicesSegment


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value128.1452.9656.45910111412146.712109.878
Percentage of PaymentsToAcquireProductiveAssets75.684.724.270.559.960.371.888.482.992.972.991.2

us-gaap:OperatingSegments, ecol:FieldAndIndustrialServicesSegment


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value3.2740.9313.1522.5315.1775.2892.861.0182.0590.1783.970.573
Percentage of PaymentsToAcquireProductiveAssets19.59.725.727.630.827.614.57.411.82.526.55.3

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value-6.131-2.774-43.057-37.001-2.1486340617-6.298-32.96682
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-2.5-1.2-17.9-15.5-1.026.5175.710.4-4.0-25.252.6

Proceeds From Issuance Of Long Term Debt

us-gaap:ProceedsFromIssuanceOfLongTermDebt

us-gaap:ProceedsFromIssuanceOfLongTermDebt


Proceeds
Period End2020-12-312020-09-302020-06-302020-03-312019-12-31
Value0.00.00.090471
Percentage of ProceedsFromIssuanceOfLongTermDebt0.00.00.0100.0100.0

Repayments Of Long Term Debt

us-gaap:RepaymentsOfLongTermDebt

us-gaap:RepaymentsOfLongTermDebt


Repayments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value7.1251.12541311.1251.125500.00.030
Percentage of RepaymentsOfLongTermDebt100.0100.0100.0100.0100.0100.0100.00.00.0100.0

Payments Of Dividends Common Stock

us-gaap:PaymentsOfDividendsCommonStock

us-gaap:PaymentsOfDividendsCommonStock


Payments
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value0.00.00.05.6673.9753.9733.9723.973.966
Percentage of PaymentsOfDividendsCommonStock0.00.00.0100.0100.0100.0100.0100.0100.0

Payments For Repurchase Of Common Stock

us-gaap:PaymentsForRepurchaseOfCommonStock

us-gaap:PaymentsForRepurchaseOfCommonStock


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-03-31
Value0.00.4650.00.00.0180.915
Percentage of PaymentsForRepurchaseOfCommonStock0.0100.00.00.00.0100.0100.0

Effective Income Tax Rate Continuing Operations

us-gaap:EffectiveIncomeTaxRateContinuingOperations

us-gaap:EffectiveIncomeTaxRateContinuingOperations


Effective
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-6.664.51.3-29.9-0.7740.0010.0330.330.2920.274-0.0020.202
Percentage of EffectiveIncomeTaxRateContinuingOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

us-gaap:EmployeeStockOption


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value44.5844.5849.9349.9349.8850.148.2347.8444.93
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice100.0100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Liabilities

us-gaap:DeferredTaxLiabilities

us-gaap:DeferredTaxLiabilities


Deferred
Period End2020-12-312019-12-312018-12-31
Value12012863
Percentage of DeferredTaxLiabilities100.0100.0100.0

Deferred Tax Assets Net

us-gaap:DeferredTaxAssetsNet

us-gaap:DeferredTaxAssetsNet


Deferred
Period End2020-12-312019-12-312018-12-31
Value525315
Percentage of DeferredTaxAssetsNet100.0100.0100.0

Unrecognized Tax Benefits

us-gaap:UnrecognizedTaxBenefits

us-gaap:UnrecognizedTaxBenefits


Unrecognized
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value239000.08300000.08400000.08400000.08300000.0247000.0555000.0
Percentage of UnrecognizedTaxBenefits100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Assets Valuation Allowance

us-gaap:DeferredTaxAssetsValuationAllowance

us-gaap:DeferredTaxAssetsValuationAllowance


Deferred
Period End2020-12-312019-12-312018-12-31
Value4207000.04965000.04791000.0
Percentage of DeferredTaxAssetsValuationAllowance100.0100.0100.0

ecol:AccretionAndNonCashAdjustmentOfClosurePostClosureLiabilities

ecol:AccretionAndNonCashAdjustmentOfClosurePostClosureLiabilities


Accretion
Period 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
Value1191000.01182000.0188000.01279000.01267000.01266000.0991000.01139000.01133000.01125000.0465000.01087000.0
Percentage of AccretionAndNonCashAdjustmentOfClosurePostClosureLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ecol:AdjustedEbitda

ecol:AdjustedEbitda


Adjusted
Period 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
Value343342453843523737233335
Percentage of AdjustedEbitda100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ecol:AdjustedEbitda us-gaap:ConsolidationItems

us-gaap:CorporateNonSegment


Adjusted
Period 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
Value-25.217-25.327-19.708-20.182-17.979-17.382-14.372-19.831-14.144-14.082-14.483-13.846
Percentage of AdjustedEbitda-73.7-76.3-46.1-44.4-46.5-40.2-27.1-53.0-37.3-59.3-43.5-38.9

ecol:AdjustedEbitda us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, ecol:EnergyWasteSegment


Adjusted
Period End2021-06-302021-03-312020-06-302020-03-31
Value2.3091.258-1.1325.205
Percentage of AdjustedEbitda6.73.8-2.912.0

us-gaap:OperatingSegments, ecol:EnvironmentalServicesSegment


Adjusted
Period 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
Value394040444346545147354243
Percentage of AdjustedEbitda116.8120.994.897.5112.2106.7102.1137.4124.0148.6127.6121.4

us-gaap:OperatingSegments, ecol:FieldAndIndustrialServicesSegment


Adjusted
Period 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
Value171720211314135.8485.0222.5545.3146.236
Percentage of AdjustedEbitda50.251.648.647.034.333.525.115.613.210.816.017.5

ecol:AdjustmentsToAdditionalPaidInCapitalShareBasedPaymentsOfBusinessDevelopmentAndIntegrationExpenses us-gaap:StatementEquityComponents

ecol:AdjustmentsToAdditionalPaidInCapitalShareBasedPaymentsOfBusinessDevelopmentAndIntegrationExpenses

us-gaap:AdditionalPaidInCapital


Adjustments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value134000.0161000.039000.0170000.0792000.0181000.0
Percentage of AdjustmentsToAdditionalPaidInCapitalShareBasedPaymentsOfBusinessDevelopmentAndIntegrationExpenses100.0100.0100.0100.0100.0100.0

ecol:AmortizationAndWriteOffOfDebtDiscount

ecol:AmortizationAndWriteOffOfDebtDiscount


Amortization
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value40000.040000.040000.0-369000.0245000.0245000.0
Percentage of AmortizationAndWriteOffOfDebtDiscount100.0100.0100.0100.0100.0100.0

ecol:AmortizationAndWriteOffOfDebtIssuanceCosts

ecol:AmortizationAndWriteOffOfDebtIssuanceCosts


Amortization
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value685000.0577000.0577000.0961000.0381000.0298000.0394000.0204000.0205000.0204000.0
Percentage of AmortizationAndWriteOffOfDebtIssuanceCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ecol:DecreaseInRestrictedCashAndInvestments

ecol:DecreaseInRestrictedCashAndInvestments


Decrease
Period End2020-09-302019-09-30
Value218000.0397000.0
Percentage of DecreaseInRestrictedCashAndInvestments100.0100.0

ecol:DecreaseIncreaseInIncomeTaxProvisionIfUnrecognizedTaxBenefitsAreRecognized

ecol:DecreaseIncreaseInIncomeTaxProvisionIfUnrecognizedTaxBenefitsAreRecognized


Decrease
Period End2021-06-302021-03-31
Value12000.0252000.0
Percentage of DecreaseIncreaseInIncomeTaxProvisionIfUnrecognizedTaxBenefitsAreRecognized100.0100.0

ecol:EquitySecuritiesWithoutReadilyDeterminableFairValueChangeInFairValue us-gaap:FinancialInstrument

ecol:EquitySecuritiesWithoutReadilyDeterminableFairValueChangeInFairValue

us-gaap:PreferredStock


Equity
Period End2021-03-31
Value3500000.0
Percentage of EquitySecuritiesWithoutReadilyDeterminableFairValueChangeInFairValue100.0

ecol:FairValueChangeMinorityInterestInvestment

ecol:FairValueChangeMinorityInterestInvestment


Fair
Period End2021-06-302021-03-31
Value03509000.0
Percentage of FairValueChangeMinorityInterestInvestment0.0100.0

ecol:ForeignCurrencyTranslationFairValueDisclosure us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

ecol:ForeignCurrencyTranslationFairValueDisclosure

us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsRecurring


Foreign
Period End2021-06-302021-03-312020-12-312020-09-302020-06-30
Value63000.035000.0184000.0164000.0-14000.0
Percentage of ForeignCurrencyTranslationFairValueDisclosure100.0100.0100.0100.0100.0

ecol:GoodwillTranslationAdjustmentsAndOtherAdjustments

ecol:GoodwillTranslationAdjustmentsAndOtherAdjustments


Goodwill
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value415000.0309000.01207000.0505000.0903000.0-1970000.0
Percentage of GoodwillTranslationAdjustmentsAndOtherAdjustments100.0100.0100.0100.0100.0100.0

ecol:GoodwillTranslationAdjustmentsAndOtherAdjustments us-gaap:StatementBusinessSegments

ecol:EnvironmentalServicesSegment


Goodwill
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value288000.0215000.0838000.0351000.0627000.0-1368000.0
Percentage of GoodwillTranslationAdjustmentsAndOtherAdjustments69.469.669.469.569.469.4

ecol:FieldAndIndustrialServicesSegment


Goodwill
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value127000.094000.0369000.0154000.0276000.0-602000.0
Percentage of GoodwillTranslationAdjustmentsAndOtherAdjustments30.630.430.630.530.630.6

ecol:IncreaseDecreaseAccruedCappingClosurePostClosureAndEnvironmentalCosts

ecol:IncreaseDecreaseAccruedCappingClosurePostClosureAndEnvironmentalCosts


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value429000.0337000.0403000.0543000.0381000.0417000.0498000.0639000.0305000.0470000.0874000.0
Percentage of IncreaseDecreaseAccruedCappingClosurePostClosureAndEnvironmentalCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ecol:IncreaseDecreaseInContingentConsiderationFairValueDisclosure us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

ecol:IncreaseDecreaseInContingentConsiderationFairValueDisclosure

us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsRecurring


Increase
Period End2021-06-302020-12-312020-09-302020-06-30
Value282000.0-475000.075000.0-2155000.0
Percentage of IncreaseDecreaseInContingentConsiderationFairValueDisclosure100.0100.0100.0100.0

ecol:IncrementalCommonSharesAttributableToShareBasedPaymentAwardsAndWarrants

ecol:IncrementalCommonSharesAttributableToShareBasedPaymentAwardsAndWarrants


Incremental
Period End2020-09-302019-09-30
Value255000.0218000.0
Percentage of IncrementalCommonSharesAttributableToShareBasedPaymentAwardsAndWarrants100.0100.0

ecol:InterestNetOfTax us-gaap:DerivativeInstrumentRisk, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

ecol:InterestNetOfTax

us-gaap:InterestRateSwap, us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value898000.0894000.0900000.0921000.0588000.0212000.0-103000.027000.0100000.0110000.0-45000.031000.0
Percentage of InterestNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ecol:PaymentOfContingentConsideration us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

ecol:PaymentOfContingentConsideration

us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsRecurring


Payment
Period End2020-09-302020-06-30
Value02085000.0
Percentage of PaymentOfContingentConsideration0.0100.0

ecol:PaymentsToAcquirePrivateEquityInvestment

ecol:PaymentsToAcquirePrivateEquityInvestment


Payments
Period End2021-06-302021-03-312019-12-31
Value0712000.00
Percentage of PaymentsToAcquirePrivateEquityInvestment0.0100.00.0

ecol:PaymentsToAcquirePrivateEquityInvestment us-gaap:BalanceSheetLocation, us-gaap:FinancialInstrument

us-gaap:OtherNoncurrentAssets, us-gaap:PreferredStock


Payments
Period End2021-03-312020-09-30
Value712000.07900000.0
Percentage of PaymentsToAcquirePrivateEquityInvestment100.00.0

ecol:PercentageOfRevenue us-gaap:ProductOrService, us-gaap:StatementScenario

ecol:PercentageOfRevenue

ecol:TreatmentAndDisposal, ecol:BaseBusiness


Percentage
Period 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
Value76.076.01.070.00.730.7500.750.770.8500.78
Percentage of PercentageOfRevenue100.0100.0100.0100.0100.0100.00.0100.0100.0100.00.0100.0

ecol:TreatmentAndDisposal, ecol:EventBusiness


Percentage
Period 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
Value24.024.0-1.030.00.270.2500.250.230.1500.22
Percentage of PercentageOfRevenue31.631.6-100.042.937.033.30.033.329.917.60.028.2

ecol:RestrictedStockIssuedFromTreasuryShares

ecol:RestrictedStockIssuedFromTreasuryShares


Restricted
Period End2021-06-302021-03-312020-12-312020-09-302019-12-312019-09-302018-12-31
Value1146000.04127000.0450000.075000.0063000.00
Percentage of RestrictedStockIssuedFromTreasuryShares100.0100.0100.0100.00.0100.00.0

ecol:ReversalOfImpairmentCharges us-gaap:ReportingUnit

ecol:ReversalOfImpairmentCharges

ecol:InternationalReportingUnit


Reversal
Period End2020-12-31
Value11
Percentage of ReversalOfImpairmentCharges100.0

ecol:ShareBasedBusinessDevelopmentAndIntegrationExpenses

ecol:ShareBasedBusinessDevelopmentAndIntegrationExpenses


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value135000.0163000.040000.0169000.0792000.0181000.0
Percentage of ShareBasedBusinessDevelopmentAndIntegrationExpenses100.0100.0100.0100.0100.0100.0

ecol:StockIssuedDuringPeriodValueRestrictedStockAwardAndShareBasedCompensation us-gaap:StatementEquityComponents

ecol:StockIssuedDuringPeriodValueRestrictedStockAwardAndShareBasedCompensation

us-gaap:AdditionalPaidInCapital


Stock
Period End2021-06-302021-03-312020-06-30
Value1146000.04838000.02412000.0
Percentage of StockIssuedDuringPeriodValueRestrictedStockAwardAndShareBasedCompensation100.0100.0100.0

us-gaap:TreasuryStockCommon


Stock
Period End2021-06-302021-03-312020-06-30
Value-1146000.0-4127000.0-1966000.0
Percentage of StockIssuedDuringPeriodValueRestrictedStockAwardAndShareBasedCompensation-100.0-85.3-81.5

ecol:StockIssuedDuringPeriodValueStockOptionsCommonStockAndRestrictedCommonStock us-gaap:StatementEquityComponents

ecol:StockIssuedDuringPeriodValueStockOptionsCommonStockAndRestrictedCommonStock

us-gaap:AdditionalPaidInCapital


Stock
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value-31000.0-77000.0-360000.010000.00-1103000.0857000.0
Percentage of StockIssuedDuringPeriodValueStockOptionsCommonStockAndRestrictedCommonStock100.0100.0100.0100.00.0100.0100.0

ecol:UnrecognizedTaxBenefitsPeriodIncreaseDecrease1

ecol:UnrecognizedTaxBenefitsPeriodIncreaseDecrease1


Unrecognized
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value-13000.0-12000.0060000.00-52000.00369000.00-131000.0189000.0
Percentage of UnrecognizedTaxBenefitsPeriodIncreaseDecrease1100.0100.00.0100.00.0100.00.0100.00.0100.0100.0

us-gaap:AssetRetirementObligationAccretionExpense

us-gaap:AssetRetirementObligationAccretionExpense


Asset
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value1191000.01182000.0188000.01279000.01267000.01266000.0991000.01139000.01133000.01125000.0465000.0
Percentage of AssetRetirementObligationAccretionExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AssetRetirementObligationForeignCurrencyTranslationGainLoss

us-gaap:AssetRetirementObligationForeignCurrencyTranslationGainLoss


Asset
Period End2021-06-302021-03-312020-12-312020-09-302020-06-30
Value28000.021000.071000.033000.063000.0
Percentage of AssetRetirementObligationForeignCurrencyTranslationGainLoss100.0100.0100.0100.0100.0

us-gaap:AssetRetirementObligationLiabilitiesSettled

us-gaap:AssetRetirementObligationLiabilitiesSettled


Asset
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-312019-09-30
Value429000.0338000.0410000.0542000.0380000.0500000.0638000.0
Percentage of AssetRetirementObligationLiabilitiesSettled100.0100.0100.0100.0100.0100.0100.0

us-gaap:BusinessCombinationAcquisitionRelatedCosts

us-gaap:BusinessCombinationAcquisitionRelatedCosts


Business
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value0.7851.224.1141.6272.9732.9194.0252.530.141
Percentage of BusinessCombinationAcquisitionRelatedCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BusinessCombinationAcquisitionRelatedCosts us-gaap:BusinessAcquisition

ecol:NrcGroupHoldingsCorp


Business
Period End2020-12-312020-09-302020-06-30
Value4.11.62.9
Percentage of BusinessCombinationAcquisitionRelatedCosts99.798.397.5

us-gaap:BusinessCombinationConsiderationTransferred1 us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationConsiderationTransferred1

ecol:NrcGroupHoldingsCorp


Business
Period End2020-09-302020-06-302020-03-312019-11-01
Value0.00.010241024
Percentage of BusinessCombinationConsiderationTransferred10.00.0100.0100.0

us-gaap:BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1

us-gaap:BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1


Business
Period End2020-12-312020-09-302020-06-302020-03-31
Value-475000.075000.0-2155000.0-1127000.0
Percentage of BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1100.0100.0100.0100.0

us-gaap:BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual

us-gaap:BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual


Business
Period End2020-09-302020-06-30
Value6.912
Percentage of BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual100.0100.0

us-gaap:BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual

us-gaap:BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual


Business
Period End2020-09-302020-06-30
Value8070
Percentage of BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual100.0100.0

us-gaap:CapitalExpendituresIncurredButNotYetPaid

us-gaap:CapitalExpendituresIncurredButNotYetPaid


Capital
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value327000.04569000.03829000.0-332000.0-2316000.03531000.02324000.0-276000.0-78000.0912000.0-1083000.0
Percentage of CapitalExpendituresIncurredButNotYetPaid100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerLiabilityRevenueRecognized

us-gaap:ContractWithCustomerLiabilityRevenueRecognized


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value2.6101.10.7354.58.40.70.7381.57.50.10.496
Percentage of ContractWithCustomerLiabilityRevenueRecognized100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DepreciationAmortizationAndAccretionNet

us-gaap:DepreciationAmortizationAndAccretionNet


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value181811181817149.49.18.1258.2167.3
Percentage of DepreciationAmortizationAndAccretionNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DirectOperatingCosts

us-gaap:DirectOperatingCosts


Direct
Period 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
Value18617517417516017916211010695111104
Percentage of DirectOperatingCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DividendsCommonStockCash us-gaap:StatementEquityComponents

us-gaap:DividendsCommonStockCash

us-gaap:RetainedEarnings


Dividends
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value0.00.00.05.6673.9753.9733.9723.973.9663.954
Percentage of DividendsCommonStockCash0.00.00.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


Effect
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value916000.0708000.02395000.0823000.01522000.0-2825000.0389000.0-163000.0443000.0393000.0-1055000.0
Percentage of EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentAnnualAmount us-gaap:FinancialInstrument

us-gaap:EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentAnnualAmount

us-gaap:PreferredStock


Equity
Period End2021-03-31
Value3500000.0
Percentage of EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentAnnualAmount100.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements

us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsRecurring


Fair
Period End2021-06-30
Value2553000.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements100.0

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
Value275000.0278000.0296000.0292000.0315000.0318000.0254000.028000.030000.020000.0
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
Value275000.0278000.0296000.0292000.0315000.0318000.0254000.028000.030000.020000.0
Percentage of FinanceLeaseInterestPaymentOnLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeasePrincipalPayments

us-gaap:FinanceLeasePrincipalPayments


Finance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1216000.01192000.01202000.01163000.01166000.01128000.0679000.0211000.0209000.0199000.0
Percentage of FinanceLeasePrincipalPayments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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
Value1302000.01334000.01338000.01330000.01350000.01294000.0916000.0249000.0248000.0228000.0
Percentage of FinanceLeaseRightOfUseAssetAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ForeignCurrencyTransactionGainLossBeforeTax

us-gaap:ForeignCurrencyTransactionGainLossBeforeTax


Foreign
Period 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
Value-355000.0-371000.0-979000.0-421000.0-671000.0937000.0-120000.0-90000.0-384000.0-139000.0511000.0-303000.0
Percentage of ForeignCurrencyTransactionGainLossBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ForeignCurrencyTransactionGainLossUnrealized

us-gaap:ForeignCurrencyTransactionGainLossUnrealized


Foreign
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value1811000.0315000.01559000.0933000.01683000.0-2703000.0305000.0-141000.0131000.0371000.0-312000.0
Percentage of ForeignCurrencyTransactionGainLossUnrealized100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GainLossOnDispositionOfAssets1

us-gaap:GainLossOnDispositionOfAssets1


Gain
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value-47000.0221000.0313000.0-1629000.0-4000.0-184000.0239000.0-807000.0-130000.0272000.0-427000.0
Percentage of GainLossOnDispositionOfAssets1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GoodwillAndIntangibleAssetImpairment

us-gaap:GoodwillAndIntangibleAssetImpairment


Goodwill
Period End2020-12-312020-09-302020-06-302020-03-312018-12-312018-09-30
Value1040.00.03000.03.666
Percentage of GoodwillAndIntangibleAssetImpairment100.00.00.0100.00.0100.0

us-gaap:GoodwillImpairmentLoss

us-gaap:GoodwillImpairmentLoss


Goodwill
Period End2020-09-302020-06-302020-03-31
Value0.00.0300
Percentage of GoodwillImpairmentLoss0.00.0100.0

us-gaap:GoodwillImpairmentLoss us-gaap:ReportingUnit, us-gaap:StatementBusinessSegments

ecol:FieldAndIndustrialServicesSegment, ecol:FieldAndIndustrialServicesSegment


Goodwill
Period End2020-12-31
Value14
Percentage of GoodwillImpairmentLoss0.0

us-gaap:GoodwillImpairmentLoss us-gaap:StatementBusinessSegments

ecol:EnvironmentalServicesSegment


Goodwill
Period End2020-09-302020-06-302020-03-31
Value0.00.0283
Percentage of GoodwillImpairmentLoss0.00.094.4

ecol:FieldAndIndustrialServicesSegment


Goodwill
Period End2020-09-302020-06-302020-03-31
Value0.00.016
Percentage of GoodwillImpairmentLoss0.00.05.6

us-gaap:GoodwillPeriodIncreaseDecrease us-gaap:ReportingUnit

us-gaap:GoodwillPeriodIncreaseDecrease

ecol:EnergyWasteDisposalServicesReportingUnit


Goodwill
Period End2020-12-31
Value80
Percentage of GoodwillPeriodIncreaseDecrease100.0

us-gaap:GoodwillPurchaseAccountingAdjustments us-gaap:BusinessAcquisition

us-gaap:GoodwillPurchaseAccountingAdjustments

ecol:NrcGroupHoldingsCorp


Goodwill
Period End2020-12-312020-09-302020-06-302020-03-31
Value231.742.3441.021
Percentage of GoodwillPurchaseAccountingAdjustments100.0100.0100.0100.0

us-gaap:GoodwillPurchaseAccountingAdjustments us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments

ecol:NrcGroupHoldingsCorp, ecol:EnvironmentalServicesSegment


Goodwill
Period End2020-09-302020-06-302020-03-31
Value0.981.320.575
Percentage of GoodwillPurchaseAccountingAdjustments56.356.356.3

ecol:NrcGroupHoldingsCorp, ecol:FieldAndIndustrialServicesSegment


Goodwill
Period End2020-12-312020-09-302020-06-302020-03-31
Value-63.9650.761.0240.446
Percentage of GoodwillPurchaseAccountingAdjustments-268.743.743.743.7

us-gaap:ImpairmentOfIntangibleAssetsFinitelived us-gaap:IndefiniteLivedIntangibleAssetsByMajorClass

us-gaap:ImpairmentOfIntangibleAssetsFinitelived

ecol:PermitsAndLicenses


Impairment
Period End2020-12-31
Value21
Percentage of ImpairmentOfIntangibleAssetsFinitelived100.0

us-gaap:IncreaseDecreaseInAccountsAndOtherReceivables

us-gaap:IncreaseDecreaseInAccountsAndOtherReceivables


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value7.1390.681618-30.152-13.467-0.0924.10321-16.5774.728
Percentage of IncreaseDecreaseInAccountsAndOtherReceivables100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value4.723-3.6475.54913-18.6-13.618-12.5791.46912-11.9353.083
Percentage of IncreaseDecreaseInAccountsPayableAndAccruedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInAccruedIncomeTaxesPayable

us-gaap:IncreaseDecreaseInAccruedIncomeTaxesPayable


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value-848000.0-98000.0-836000.0-1561000.01186000.0662000.0181000.090000.02000.0-517000.0-628000.0
Percentage of IncreaseDecreaseInAccruedIncomeTaxesPayable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInContractWithCustomerLiability

us-gaap:IncreaseDecreaseInContractWithCustomerLiability


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value2277000.02214000.0-2549000.0-1772000.0-4381000.07083000.0-803000.0-648000.02465000.0-47000.0-1520000.0
Percentage of IncreaseDecreaseInContractWithCustomerLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInDeferredIncomeTaxes

us-gaap:IncreaseDecreaseInDeferredIncomeTaxes


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value0.533.7814.227-2.172-1.2273.32-2.728-0.183-0.785-2.905-1.176
Percentage of IncreaseDecreaseInDeferredIncomeTaxes100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInEmployeeRelatedLiabilities

us-gaap:IncreaseDecreaseInEmployeeRelatedLiabilities


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value3594000.0-3028000.04373000.01987000.0965000.0-7446000.05661000.04690000.01392000.0-3417000.0900000.0
Percentage of IncreaseDecreaseInEmployeeRelatedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInIncomeTaxesReceivable

us-gaap:IncreaseDecreaseInIncomeTaxesReceivable


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value1338000.0-1276000.0799000.06630000.0513000.0-893000.06455000.0-1840000.0-1939000.01487000.0-806000.0
Percentage of IncreaseDecreaseInIncomeTaxesReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherOperatingAssets

us-gaap:IncreaseDecreaseInOtherOperatingAssets


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value968000.0-1114000.0-2902000.03110000.02278000.02957000.0-5043000.05822000.01909000.0-525000.0-1168000.0
Percentage of IncreaseDecreaseInOtherOperatingAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InvestmentIncomeInterest

us-gaap:InvestmentIncomeInterest


Investment
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value390000.0273000.07000.09000.0153000.089000.038000.0158000.0202000.0207000.0118000.034000.0
Percentage of InvestmentIncomeInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LeaseCost

us-gaap:LeaseCost


Lease
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value6.66.9087.5676.636.6056.6115.1681.9681.9911.99
Percentage of LeaseCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OciBeforeReclassificationsNetOfTaxAttributableToParent us-gaap:StatementEquityComponents

us-gaap:OciBeforeReclassificationsNetOfTaxAttributableToParent

us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Oci
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value-2629000.08323000.01580000.0-182000.0-3582000.0-6310000.080000.0-122000.0-1077000.0-581000.0-1199000.0
Percentage of OciBeforeReclassificationsNetOfTaxAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccumulatedOtherComprehensiveIncome


Oci
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value-2097000.09762000.07963000.01741000.0-574000.0-14569000.01478000.0-1117000.0603000.01108000.0-5415000.0
Percentage of OciBeforeReclassificationsNetOfTaxAttributableToParent79.8117.3504.0-956.616.0230.91847.5915.6-56.0-190.7451.6

us-gaap:AccumulatedTranslationAdjustment


Oci
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value532000.01439000.06383000.01923000.03008000.0-8259000.01398000.0-995000.01680000.01689000.0-4216000.0
Percentage of OciBeforeReclassificationsNetOfTaxAttributableToParent-20.217.3404.0-1056.6-84.0130.91747.5815.6-156.0-290.7351.6

us-gaap:OperatingLeaseCost

us-gaap:OperatingLeaseCost


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value5.0235.2965.9335.0084.944.9993.9981.6911.7131.742
Percentage of OperatingLeaseCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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
Value4.9085.1515.754.8944.8024.8513.7881.631.6231.615
Percentage of OperatingLeasePayments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent

us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value532000.01439000.06383000.01923000.03008000.0-8259000.01398000.0-995000.01680000.01689000.0-4216000.01590000.0
Percentage of OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-1731000.09217000.02494000.0739000.0-2994000.0-6098000.0183000.0-150000.0-1177000.0-691000.0-1244000.0428000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTaxParent

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTaxParent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-460000.02450000.0663000.0196000.0-796000.0-1621000.049000.0-40000.0-313000.0-184000.0-331000.0114000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTaxParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent

us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value-1.7319.2172.4940.739-2.994-6.0980.183-0.15-1.177-0.691-1.244
Percentage of OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value-1.199108.8772.6620.014-14.3571.581-1.1450.5030.998-5.462.018
Percentage of OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent69.3115.6355.9360.2-0.5235.4863.9763.3-42.7-144.4438.90.0

us-gaap:AccumulatedTranslationAdjustment


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value0.5321.4396.3831.9233.008-8.2591.398-0.9951.681.689-4.216
Percentage of OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent-30.715.6255.9260.2-100.5135.4763.9663.3-142.7-244.4338.9

us-gaap:PaymentForContingentConsiderationLiabilityFinancingActivities

us-gaap:PaymentForContingentConsiderationLiabilityFinancingActivities


Payment
Period End2020-12-312020-09-30
Value432000.00
Percentage of PaymentForContingentConsiderationLiabilityFinancingActivities100.00.0

us-gaap:PaymentsForLegalSettlements us-gaap:LossContingenciesByNatureOfContingency

us-gaap:PaymentsForLegalSettlements

ecol:PagaClaim


Payments
Period End2020-12-28
Value500000.0
Percentage of PaymentsForLegalSettlements100.0

us-gaap:PaymentsOfFinancingCosts

us-gaap:PaymentsOfFinancingCosts


Payments
Period End2020-12-312020-09-30
Value0118000.0
Percentage of PaymentsOfFinancingCosts0.0100.0

us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired

us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired


Payments
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value0.00.00.03.30938187
Percentage of PaymentsToAcquireBusinessesNetOfCashAcquired0.00.00.0100.0100.0100.0

us-gaap:PaymentsToAcquireRestrictedInvestments

us-gaap:PaymentsToAcquireRestrictedInvestments


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value0913000.0502000.0211000.0846000.056000.0399000.0398000.0377000.023000.0350000.0
Percentage of PaymentsToAcquireRestrictedInvestments0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromInsuranceSettlementInvestingActivities

us-gaap:ProceedsFromInsuranceSettlementInvestingActivities


Proceeds
Period End2020-12-312019-12-31
Value0.1742.714
Percentage of ProceedsFromInsuranceSettlementInvestingActivities100.0100.0

us-gaap:ProceedsFromLinesOfCredit

us-gaap:ProceedsFromLinesOfCredit


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value203.2270.00.0225025387.9356.449
Percentage of ProceedsFromLinesOfCredit100.0100.00.00.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities


Proceeds
Period End2020-09-302019-12-312019-09-302018-12-31
Value1000.00-1000.00
Percentage of ProceedsFromPaymentsForOtherFinancingActivities100.00.0100.00.0

us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment

us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value376000.01623000.0818000.0291000.07000.0781000.0633000.037000.053000.0459000.0186000.0
Percentage of ProceedsFromSaleOfPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromSaleOfRestrictedInvestments

us-gaap:ProceedsFromSaleOfRestrictedInvestments


Proceeds
Period End2021-06-302021-03-312019-12-312018-12-31
Value5000.0934000.0394000.0327000.0
Percentage of ProceedsFromSaleOfRestrictedInvestments100.0100.0100.0100.0

us-gaap:ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent us-gaap:StatementEquityComponents

us-gaap:ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent

us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Reclassification
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value-898000.0-894000.0-914000.0-921000.0-588000.0-212000.0-103000.028000.0100000.0110000.045000.0
Percentage of ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccumulatedOtherComprehensiveIncome


Reclassification
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value-898000.0-894000.0-914000.0-921000.0-588000.0-212000.0-103000.028000.0100000.0110000.045000.0
Percentage of ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RepaymentsOfDebtAndCapitalLeaseObligations

us-gaap:RepaymentsOfDebtAndCapitalLeaseObligations


Repayments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value1488000.01461000.01500000.01781000.01521000.01525000.0920000.0211000.0209000.0199000.0122000.0
Percentage of RepaymentsOfDebtAndCapitalLeaseObligations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RepaymentsOfLinesOfCredit

us-gaap:RepaymentsOfLinesOfCredit


Repayments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value142.950.03.97818492636104.331
Percentage of RepaymentsOfLinesOfCredit100.0100.00.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability

us-gaap:RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability


Right
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value108000.01050000.0847000.04192000.0637000.0001844000.0
Percentage of RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability100.0100.0100.0100.0100.00.00.0100.0

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
Value1.8732.0746.3813.3440.922.9313.5631.420.7691.628
Percentage of RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue

us-gaap:RestrictedStockUnitsRSU


Share
Period End2021-06-302021-03-312020-12-31
Value-3.9346.38-0.55
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue

us-gaap:PerformanceShares


Share
Period End2020-12-312020-07-162020-09-302020-06-302020-01-242020-03-312019-12-312019-03-01
Value042.47-10.95054.5554.55058.2
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue0.0100.0100.00.0100.0100.00.0100.0

us-gaap:RestrictedStock


Share
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-31
Value1.1635.330-8.6957.040
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue0.00.0-0.00.0104.60.0

us-gaap:RestrictedStockUnitsRSU


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value039.330-0.090.3932.914.71
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue0.00.00.00.80.060.30.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue

us-gaap:PerformanceShares


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value063.56-0.80-0.2862.450
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue0.0100.0100.00.0100.0100.00.0

us-gaap:RestrictedStock


Share
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-12-31
Value-9.9156.9901.552.430
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue0.089.70.0-535.784.00.0

us-gaap:RestrictedStockUnitsRSU


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value039.990.821.810.8255.267.2
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue0.062.9-102.50.0-292.988.50.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate

us-gaap:PerformanceShares


Share
Period End2020-07-16
Value40.6
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate

us-gaap:PerformanceShares


Share
Period End2020-07-16
Value0.2
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice

us-gaap:EmployeeStockOption


Share
Period End2020-12-31
Value0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice0.0

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice

us-gaap:EmployeeStockOption


Share
Period End2020-12-31
Value0
Percentage of ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice0.0

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice

us-gaap:EmployeeStockOption


Share
Period End2021-06-302021-03-312020-12-31
Value035.30
Percentage of ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice0.0100.00.0

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensationGross us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensationGross

us-gaap:AdditionalPaidInCapital


Stock
Period End2020-09-302020-06-302019-12-312019-09-302019-06-302018-12-31
Value-125000.0-2412000.00-63000.0-451000.00
Percentage of StockIssuedDuringPeriodValueShareBasedCompensationGross100.0100.00.0100.0100.00.0

us-gaap:TreasuryStockCommon


Stock
Period End2020-09-302020-06-302019-12-312019-09-302019-06-302018-12-31
Value75000.01966000.0063000.0451000.00
Percentage of StockIssuedDuringPeriodValueShareBasedCompensationGross-60.0-81.50.0-100.0-100.00.0

us-gaap:StockRepurchasedDuringPeriodValue us-gaap:StatementEquityComponents

us-gaap:StockRepurchasedDuringPeriodValue

us-gaap:TreasuryStockCommon


Stock
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value0.00.4650.00.00.0180.00.00.00.9160.0
Percentage of StockRepurchasedDuringPeriodValue0.0100.00.00.00.0100.00.00.00.0100.00.0

us-gaap:StockholdersEquityOther us-gaap:StatementEquityComponents

us-gaap:StockholdersEquityOther

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-09-30
Value-1000.01000.01000.0
Percentage of StockholdersEquityOther100.0100.0100.0

us-gaap:TreasuryStockAcquiredAverageCostPerShare us-gaap:ShareRepurchaseProgram

us-gaap:TreasuryStockAcquiredAverageCostPerShare

ecol:CommonStockRepurchaseProgram


Treasury
Period End2020-12-312020-09-302020-06-302020-03-31
Value00043.61
Percentage of TreasuryStockAcquiredAverageCostPerShare0.00.00.0100.0

ecol:ShareRepurchaseInConnectionWithNetShareSettlementOfEmployeeEquityAwards


Treasury
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value036.3300057.91
Percentage of TreasuryStockAcquiredAverageCostPerShare0.00.00.00.00.0132.8

us-gaap:TreasuryStockValueAcquiredCostMethod us-gaap:ShareRepurchaseProgram

us-gaap:TreasuryStockValueAcquiredCostMethod

ecol:CommonStockRepurchaseProgram


Treasury
Period End2020-12-31
Value0.0
Percentage of TreasuryStockValueAcquiredCostMethod0.0

ecol:AssetRetirementObligationsMeasurementInput us-gaap:Range, us-gaap:FairValueByLiabilityClass, us-gaap:MeasurementInputType

ecol:AssetRetirementObligationsMeasurementInput

srt:WeightedAverage, us-gaap:AssetRetirementObligationCosts, us-gaap:MeasurementInputRiskFreeInterestRate


Asset
Period End2020-12-31
Value5.4
Percentage of AssetRetirementObligationsMeasurementInput100.0

ecol:CarryingValueGreaterThanFairValue us-gaap:ReportingUnit, us-gaap:StatementBusinessSegments

ecol:CarryingValueGreaterThanFairValue

ecol:FieldAndIndustrialServicesSegment, ecol:FieldAndIndustrialServicesSegment


Carrying
Period End2020-10-01
Value14
Percentage of CarryingValueGreaterThanFairValue100.0

ecol:ClosureAndPostClosureAssets

ecol:ClosureAndPostClosureAssets


Closure
Period End2020-12-312019-12-312018-12-312017-12-31
Value26221920
Percentage of ClosureAndPostClosureAssets100.0100.0100.0100.0

ecol:DeferredTaxAssetsBusinessInterestExpenseCarryforwards us-gaap:BusinessAcquisition

ecol:DeferredTaxAssetsBusinessInterestExpenseCarryforwards

ecol:NrcGroupHoldingsCorp


Deferred
Period End2020-12-31
Value39
Percentage of DeferredTaxAssetsBusinessInterestExpenseCarryforwards100.0

ecol:DeferredTaxAssetsEnvironmentalComplianceAndOtherSiteRelatedCosts

ecol:DeferredTaxAssetsEnvironmentalComplianceAndOtherSiteRelatedCosts


Deferred
Period End2020-12-312019-12-312018-12-31
Value109.2038.58
Percentage of DeferredTaxAssetsEnvironmentalComplianceAndOtherSiteRelatedCosts100.0100.0100.0

ecol:DeferredTaxAssetsForeignTaxCreditAndCapitalLossCarryforwards

ecol:DeferredTaxAssetsForeignTaxCreditAndCapitalLossCarryforwards


Deferred
Period End2020-12-312019-12-312018-12-31
Value4928000.04705000.05165000.0
Percentage of DeferredTaxAssetsForeignTaxCreditAndCapitalLossCarryforwards100.0100.0100.0

ecol:DeferredTaxAssetsOperatingLeases

ecol:DeferredTaxAssetsOperatingLeases


Deferred
Period End2020-12-312019-12-31
Value1214
Percentage of DeferredTaxAssetsOperatingLeases100.0100.0

ecol:ForeignNetOperatingLosses us-gaap:BusinessAcquisition

ecol:ForeignNetOperatingLosses

ecol:NrcGroupHoldingsCorp


Foreign
Period End2020-12-31
Value3100000.0
Percentage of ForeignNetOperatingLosses100.0

ecol:InterestRateCashFlowHedgeGainLossToBeReclassifiedDuringNext12MonthsNetOfTaxes us-gaap:DerivativeInstrumentRisk, us-gaap:StatementEquityComponents

ecol:InterestRateCashFlowHedgeGainLossToBeReclassifiedDuringNext12MonthsNetOfTaxes

us-gaap:InterestRateSwap, us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Interest
Period End2021-06-302021-03-312020-12-312020-09-30
Value2300000.02600000.02800000.03200000.0
Percentage of InterestRateCashFlowHedgeGainLossToBeReclassifiedDuringNext12MonthsNetOfTaxes100.0100.0100.0100.0

ecol:LesseeOperatingAndFinanceLeaseLiabilitiesInterestIncludedInPayments

ecol:LesseeOperatingAndFinanceLeaseLiabilitiesInterestIncludedInPayments


Lessee
Period End2020-12-31
Value8342000.0
Percentage of LesseeOperatingAndFinanceLeaseLiabilitiesInterestIncludedInPayments100.0

ecol:LesseeOperatingAndFinanceLeaseLiabilityPaymentsDue

ecol:LesseeOperatingAndFinanceLeaseLiabilityPaymentsDue


Lessee
Period End2020-12-31
Value82
Percentage of LesseeOperatingAndFinanceLeaseLiabilityPaymentsDue100.0

ecol:LesseeOperatingAndFinanceLeaseLiabilityPaymentsDueAfterYearFive

ecol:LesseeOperatingAndFinanceLeaseLiabilityPaymentsDueAfterYearFive


Lessee
Period End2020-12-31
Value5177000.0
Percentage of LesseeOperatingAndFinanceLeaseLiabilityPaymentsDueAfterYearFive100.0

ecol:LesseeOperatingAndFinanceLeaseLiabilityPaymentsDueNextTwelveMonths

ecol:LesseeOperatingAndFinanceLeaseLiabilityPaymentsDueNextTwelveMonths


Lessee
Period End2020-12-31
Value23
Percentage of LesseeOperatingAndFinanceLeaseLiabilityPaymentsDueNextTwelveMonths100.0

ecol:LesseeOperatingAndFinanceLeaseLiabilityPaymentsDueYearFive

ecol:LesseeOperatingAndFinanceLeaseLiabilityPaymentsDueYearFive


Lessee
Period End2020-12-31
Value6434000.0
Percentage of LesseeOperatingAndFinanceLeaseLiabilityPaymentsDueYearFive100.0

ecol:LesseeOperatingAndFinanceLeaseLiabilityPaymentsDueYearFour

ecol:LesseeOperatingAndFinanceLeaseLiabilityPaymentsDueYearFour


Lessee
Period End2020-12-31
Value10
Percentage of LesseeOperatingAndFinanceLeaseLiabilityPaymentsDueYearFour100.0

ecol:LesseeOperatingAndFinanceLeaseLiabilityPaymentsDueYearThree

ecol:LesseeOperatingAndFinanceLeaseLiabilityPaymentsDueYearThree


Lessee
Period End2020-12-31
Value16
Percentage of LesseeOperatingAndFinanceLeaseLiabilityPaymentsDueYearThree100.0

ecol:LesseeOperatingAndFinanceLeaseLiabilityPaymentsDueYearTwo

ecol:LesseeOperatingAndFinanceLeaseLiabilityPaymentsDueYearTwo


Lessee
Period End2020-12-31
Value19
Percentage of LesseeOperatingAndFinanceLeaseLiabilityPaymentsDueYearTwo100.0

ecol:LesseeOperatingAndFinanceLeasePresentValueOfLeaseLiabilities

ecol:LesseeOperatingAndFinanceLeasePresentValueOfLeaseLiabilities


Lessee
Period End2020-12-31
Value74
Percentage of LesseeOperatingAndFinanceLeasePresentValueOfLeaseLiabilities100.0

ecol:LongTermDebtMaturityInYearFiveAndAfterYearFive

ecol:LongTermDebtMaturityInYearFiveAndAfterYearFive


Long
Period End2021-06-302021-03-31
Value764423
Percentage of LongTermDebtMaturityInYearFiveAndAfterYearFive100.0100.0

ecol:OperatingAndFinanceLeaseLeaseLiability

ecol:OperatingAndFinanceLeaseLeaseLiability


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value66707474757977
Percentage of OperatingAndFinanceLeaseLeaseLiability100.0100.0100.0100.0100.0100.0100.0

ecol:OperatingAndFinanceLeaseRightOfUseAsset

ecol:OperatingAndFinanceLeaseRightOfUseAsset


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value66707273747877
Percentage of OperatingAndFinanceLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.0100.0

ecol:OperatingLossCarryforwardsIndefiniteLived us-gaap:IncomeTaxAuthority

ecol:OperatingLossCarryforwardsIndefiniteLived

us-gaap:DomesticCountry


Operating
Period End2020-12-31
Value29
Percentage of OperatingLossCarryforwardsIndefiniteLived100.0

ecol:ReceivablesGrossCurrent

ecol:ReceivablesGrossCurrent


Receivables
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value253246244229214243258158147
Percentage of ReceivablesGrossCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0

ecol:StockPriceOnGrantDate us-gaap:AwardType

ecol:StockPriceOnGrantDate

us-gaap:PerformanceShares


Stock
Period End2020-12-312020-07-162019-12-312018-12-312017-12-31
Value32.8932.8958.451.049.15
Percentage of StockPriceOnGrantDate100.0100.0100.0100.0100.0

us-gaap:AccountsAndOtherReceivablesNetCurrent

us-gaap:AccountsAndOtherReceivablesNetCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value250242241227211240255155144
Percentage of AccountsAndOtherReceivablesNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccountsReceivableGrossCurrent

us-gaap:AccountsReceivableGrossCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value195189186174163187196117118
Percentage of AccountsReceivableGrossCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccruedCappingClosurePostClosureAndEnvironmentalCosts

us-gaap:AccruedCappingClosurePostClosureAndEnvironmentalCosts


Accrued
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value7632000.07119000.06471000.04019000.03374000.02704000.02152000.02196000.02266000.0
Percentage of AccruedCappingClosurePostClosureAndEnvironmentalCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccruedCappingClosurePostClosureAndEnvironmentalCostsNoncurrent

us-gaap:AccruedCappingClosurePostClosureAndEnvironmentalCostsNoncurrent


Accrued
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value898989848484847876
Percentage of AccruedCappingClosurePostClosureAndEnvironmentalCostsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent


Allowance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-312017-12-312016-12-31
Value3524000.03666000.02936000.02297000.03018000.03054000.03010000.02636000.02998000.02796000.02334000.0
Percentage of AllowanceForDoubtfulAccountsReceivableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AssetRetirementObligation

us-gaap:AssetRetirementObligation


Asset
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-312017-12-31
Value9796958888878680797876
Percentage of AssetRetirementObligation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:AssetsFairValueDisclosure

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


Assets
Period End2021-03-312018-12-31
Value1.6191.147
Percentage of AssetsFairValueDisclosure100.0100.0

us-gaap:AssetsFairValueDisclosure us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByMeasurementFrequency

us-gaap:InterestRateSwap, us-gaap:FairValueMeasurementsRecurring


Assets
Period End2021-03-312019-12-312018-12-31
Value1.6198.2831.147
Percentage of AssetsFairValueDisclosure100.00.0100.0

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

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value5.0464.9314.2333362623.2392.8212.345
Percentage of AssetsFairValueDisclosure0.0304.60.00.00.00.00.00.0204.4

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value0.9162.5341.4271.9291.9411.8421.832.2243.743
Percentage of AssetsFairValueDisclosure0.0156.50.00.00.00.00.00.0326.3

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

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring, us-gaap:FixedIncomeSecurities


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value3.3993.4052.9142.4242.4182.4242.381.981.561
Percentage of AssetsFairValueDisclosure0.0210.30.00.00.00.00.00.0136.1

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


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value1.6471.5261.3193060600.8590.8410.784
Percentage of AssetsFairValueDisclosure0.094.30.00.00.00.00.00.068.4

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring, us-gaap:FixedIncomeSecurities


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value0.9160.9151.4271.9291.9411.8421.832.2242.596
Percentage of AssetsFairValueDisclosure0.056.50.00.00.00.00.00.0226.3

us-gaap:AssetsFairValueDisclosure us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value5.9627.4655.663464645.0695.0456.088
Percentage of AssetsFairValueDisclosure0.0461.10.00.00.00.00.00.0530.8

us-gaap:AssetsFairValueDisclosure us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument

us-gaap:FairValueMeasurementsRecurring, us-gaap:FixedIncomeSecurities


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value4.3154.324.3414.3534.3594.2664.214.2044.157
Percentage of AssetsFairValueDisclosure0.0266.80.00.00.00.00.00.0362.4

us-gaap:FairValueMeasurementsRecurring, us-gaap:MoneyMarketFunds


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value1.6471.5261.3193060600.8590.8410.784
Percentage of AssetsFairValueDisclosure0.094.30.00.00.00.00.00.068.4

us-gaap:BankOverdrafts us-gaap:DebtInstrument

us-gaap:BankOverdrafts

ecol:SweepArrangements


Bank
Period End2021-06-302021-03-31
Value6.3277000
Percentage of BankOverdrafts100.0100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilities us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilities

ecol:NrcGroupHoldingsCorp


Business
Period End2020-09-302020-06-302020-03-312019-12-312019-11-01
Value8987848383
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilities100.0100.0100.0100.0100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilities us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilities

ecol:NrcGroupHoldingsCorp


Business
Period End2020-09-302020-06-302020-03-312019-12-31
Value55555656
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilities100.0100.0100.0100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet

ecol:NrcGroupHoldingsCorp


Business
Period End2020-09-302020-06-302020-03-312019-12-312019-11-01
Value471472475476476
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet100.0100.0100.0100.0100.0

us-gaap:DebtInstrumentCarryingAmount

us-gaap:DebtInstrumentCarryingAmount


Debt
Period End2021-06-302021-03-312020-12-312019-12-312019-09-302018-12-31
Value790791792777354364
Percentage of DebtInstrumentCarryingAmount100.0100.0100.0100.0100.0100.0

us-gaap:DebtInstrumentCarryingAmount us-gaap:CreditFacility

ecol:NewCreditAgreementRevolvingCreditFacility


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value347347347387420417327354364
Percentage of DebtInstrumentCarryingAmount43.943.943.80.00.00.042.1100.0100.0

ecol:TermLoan


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value443444445446447448450
Percentage of DebtInstrumentCarryingAmount56.156.156.20.00.00.057.9

us-gaap:DebtInstrumentFairValue

us-gaap:DebtInstrumentFairValue


Debt
Period End2021-06-302021-03-312020-12-31
Value444444446
Percentage of DebtInstrumentFairValue100.0100.0100.0

us-gaap:DebtInstrumentFairValue us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FinancialInstrument

us-gaap:FairValueInputsLevel2, us-gaap:Borrowings


Debt
Period End2020-09-30
Value442
Percentage of DebtInstrumentFairValue0.0

us-gaap:DebtInstrumentInterestRateEffectivePercentage us-gaap:CreditFacility

us-gaap:DebtInstrumentInterestRateEffectivePercentage

us-gaap:SecuredDebt


Debt
Period End2021-06-302021-03-312020-09-30
Value2.882.893.5
Percentage of DebtInstrumentInterestRateEffectivePercentage100.0100.0100.0

us-gaap:DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet

us-gaap:DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value6087000.06373000.06657000.06943000.07228000.07514000.07799000.0
Percentage of DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet us-gaap:CreditFacility

ecol:TermLoan


Debt
Period End2020-12-312019-12-31
Value6700000.07800000.0
Percentage of DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet100.6100.0

us-gaap:DeferredFinanceCostsNet us-gaap:CreditFacility

us-gaap:DeferredFinanceCostsNet

us-gaap:RevolvingCreditFacility


Deferred
Period End2020-12-312019-12-312018-12-31
Value5300000.04700000.02700000.0
Percentage of DeferredFinanceCostsNet100.0100.0100.0

us-gaap:DeferredIncomeTaxLiabilities

us-gaap:DeferredIncomeTaxLiabilities


Deferred
Period End2020-12-312019-12-312018-12-31
Value17318178
Percentage of DeferredIncomeTaxLiabilities100.0100.0100.0

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsGross


Deferred
Period End2020-12-312019-12-312018-12-31
Value565820
Percentage of DeferredTaxAssetsGross100.0100.0100.0

us-gaap:DeferredTaxAssetsOperatingLossCarryforwards

us-gaap:DeferredTaxAssetsOperatingLossCarryforwards


Deferred
Period End2020-12-312019-12-31
Value1814
Percentage of DeferredTaxAssetsOperatingLossCarryforwards100.0100.0

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsDomestic us-gaap:BusinessAcquisition

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsDomestic

ecol:NrcGroupHoldingsCorp


Deferred
Period End2020-12-31
Value97
Percentage of DeferredTaxAssetsOperatingLossCarryforwardsDomestic100.0

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal us-gaap:BusinessAcquisition

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal

ecol:NrcGroupHoldingsCorp


Deferred
Period End2020-12-31
Value40
Percentage of DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther


Deferred
Period End2020-12-312019-12-312018-12-31
Value8691000.08966000.05041000.0
Percentage of DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther100.0100.0100.0

us-gaap:DeferredTaxAssetsUnrealizedCurrencyLosses

us-gaap:DeferredTaxAssetsUnrealizedCurrencyLosses


Deferred
Period End2020-12-312019-12-312018-12-31
Value790000.0962000.01550000.0
Percentage of DeferredTaxAssetsUnrealizedCurrencyLosses100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets

us-gaap:DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets


Deferred
Period End2020-12-312019-12-312018-12-31
Value10711251
Percentage of DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesLeasingArrangements

us-gaap:DeferredTaxLiabilitiesLeasingArrangements


Deferred
Period End2020-12-312019-12-31
Value1214
Percentage of DeferredTaxLiabilitiesLeasingArrangements100.0100.0

us-gaap:DeferredTaxLiabilitiesOther

us-gaap:DeferredTaxLiabilitiesOther


Deferred
Period End2020-12-312019-12-312018-12-31
Value-102000.01849000.01284000.0
Percentage of DeferredTaxLiabilitiesOther100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment


Deferred
Period End2020-12-312019-12-312018-12-31
Value535326
Percentage of DeferredTaxLiabilitiesPropertyPlantAndEquipment100.0100.0100.0

us-gaap:EmployeeRelatedLiabilitiesCurrent

us-gaap:EmployeeRelatedLiabilitiesCurrent


Employee
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value312730262422291916
Percentage of EmployeeRelatedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized


Employee
Period End2020-12-31
Value9500000.0
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized100.0

us-gaap:FairValueHedgeLiabilitiesAtFairValue us-gaap:DerivativeInstrumentRisk

us-gaap:FairValueHedgeLiabilitiesAtFairValue

us-gaap:InterestRateSwap


Fair
Period End2020-12-31
Value9700000.0
Percentage of FairValueHedgeLiabilitiesAtFairValue100.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue

us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsRecurring


Fair
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value2208000.02173000.02896000.02657000.06911000.08283000.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeaseLiability

us-gaap:FinanceLeaseLiability


Finance
Period End2020-12-31
Value21
Percentage of FinanceLeaseLiability100.0

us-gaap:FinanceLeaseLiabilityCurrent

us-gaap:FinanceLeaseLiabilityCurrent


Finance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value4971000.04935000.04462000.04706000.04478000.04397000.04128000.0
Percentage of FinanceLeaseLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeaseLiabilityNoncurrent

us-gaap:FinanceLeaseLiabilityNoncurrent


Finance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value14151718181916
Percentage of FinanceLeaseLiabilityNoncurrent100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeaseLiabilityPaymentsDue

us-gaap:FinanceLeaseLiabilityPaymentsDue


Finance
Period End2020-12-31
Value25
Percentage of FinanceLeaseLiabilityPaymentsDue100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:FinanceLeaseLiabilityPaymentsDueAfterYearFive


Finance
Period End2020-12-31
Value1014000.0
Percentage of FinanceLeaseLiabilityPaymentsDueAfterYearFive100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:FinanceLeaseLiabilityPaymentsDueNextTwelveMonths


Finance
Period End2020-12-31
Value5944000.0
Percentage of FinanceLeaseLiabilityPaymentsDueNextTwelveMonths100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFive

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFive


Finance
Period End2020-12-31
Value3807000.0
Percentage of FinanceLeaseLiabilityPaymentsDueYearFive100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFour

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFour


Finance
Period End2020-12-31
Value3929000.0
Percentage of FinanceLeaseLiabilityPaymentsDueYearFour100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueYearThree

us-gaap:FinanceLeaseLiabilityPaymentsDueYearThree


Finance
Period End2020-12-31
Value5668000.0
Percentage of FinanceLeaseLiabilityPaymentsDueYearThree100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueYearTwo

us-gaap:FinanceLeaseLiabilityPaymentsDueYearTwo


Finance
Period End2020-12-31
Value5560000.0
Percentage of FinanceLeaseLiabilityPaymentsDueYearTwo100.0

us-gaap:FinanceLeaseLiabilityUndiscountedExcessAmount

us-gaap:FinanceLeaseLiabilityUndiscountedExcessAmount


Finance
Period End2020-12-31
Value3959000.0
Percentage of FinanceLeaseLiabilityUndiscountedExcessAmount100.0

us-gaap:FinanceLeaseRightOfUseAsset

us-gaap:FinanceLeaseRightOfUseAsset


Finance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value19212122222220
Percentage of FinanceLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeaseRightOfUseAssetAccumulatedAmortization

us-gaap:FinanceLeaseRightOfUseAssetAccumulatedAmortization


Finance
Period End2021-06-302021-03-312020-12-312020-09-302019-12-31
Value109.38.06.72.7
Percentage of FinanceLeaseRightOfUseAssetAccumulatedAmortization100.0100.0100.0100.0100.0

us-gaap:FinanceLeaseWeightedAverageDiscountRatePercent

us-gaap:FinanceLeaseWeightedAverageDiscountRatePercent


Finance
Period End2020-12-312019-12-31
Value5.865.07
Percentage of FinanceLeaseWeightedAverageDiscountRatePercent100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value122113104948475665546
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization us-gaap:FiniteLivedIntangibleAssetsByMajorClass

ecol:PermitsLicensesAndLeases


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value252423212019181714
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization20.621.222.023.024.125.528.031.831.8

us-gaap:CustomerRelationships


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value746861544841353025
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization61.160.159.258.156.955.552.855.255.1

us-gaap:Databases


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value0.2270.220.2140.2050.1980.1910.1910.1850.167
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization0.20.20.20.20.20.30.30.30.4

us-gaap:InternetDomainNames


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value0.1980.1910.1840.1770.170.1630.1560.1490.128
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization0.20.20.20.20.20.20.20.30.3

us-gaap:NoncompeteAgreements


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value5.1384.914.3183.7213.0632.3721.6941.1910.875
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization4.24.34.13.93.63.12.52.11.9

us-gaap:OrderOrProductionBacklog


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value2.5692.4782.3872.2962.2042.1132.0221.931.656
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization2.12.22.32.42.62.83.03.53.6

us-gaap:SoftwareDevelopment


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value2.3362.2592.1822.0972.0181.9361.8841.8071.581
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization1.92.02.12.22.42.62.83.33.4

us-gaap:TechnologyBasedIntangibleAssets


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value2.4752.3782.2932.1322.0351.9072.0131.9311.714
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization2.02.12.22.32.42.53.03.53.7

us-gaap:TradeNames


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value9.448.7288.0157.2696.4575.6444.8324.29
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization7.77.77.77.77.67.57.29.2

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive


Finite
Period End2020-12-31
Value282
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths


Finite
Period End2020-12-31
Value34
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive


Finite
Period End2020-12-31
Value30
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearFive100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour


Finite
Period End2020-12-31
Value30
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearFour100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree


Finite
Period End2020-12-31
Value31
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearThree100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo


Finite
Period End2020-12-31
Value31
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo100.0

us-gaap:FiniteLivedIntangibleAssetsGross

us-gaap:FiniteLivedIntangibleAssetsGross


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value546545545537536535537284279
Percentage of FiniteLivedIntangibleAssetsGross100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FiniteLivedIntangibleAssetsGross us-gaap:FiniteLivedIntangibleAssetsByMajorClass

ecol:PermitsLicensesAndLeases


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value175175174173173172174165164
Percentage of FiniteLivedIntangibleAssetsGross32.132.132.132.332.332.232.458.058.9

us-gaap:CustomerRelationships


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value34034034033333333333310399
Percentage of FiniteLivedIntangibleAssetsGross62.362.362.362.162.162.261.936.235.5

us-gaap:Databases


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value0.3920.390.3890.3860.3840.3820.3880.3870.384
Percentage of FiniteLivedIntangibleAssetsGross0.10.10.10.10.10.10.10.10.1

us-gaap:NoncompeteAgreements


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value5.5895.5785.5715.5415.5285.5065.4551.9951.542
Percentage of FiniteLivedIntangibleAssetsGross1.01.01.01.01.01.01.00.70.6

us-gaap:SoftwareDevelopment


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value2.9092.9052.9022.8892.8842.8742.8952.8912.884
Percentage of FiniteLivedIntangibleAssetsGross0.50.50.50.50.50.50.51.01.0

us-gaap:TechnologyBasedIntangibleAssets


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value7.3417.2277.1426.8096.676.4216.9646.8726.672
Percentage of FiniteLivedIntangibleAssetsGross1.31.31.31.31.21.21.32.42.4

us-gaap:TradeNames


Finite
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-31
Value101010101010104.29
Percentage of FiniteLivedIntangibleAssetsGross1.91.91.91.91.91.91.91.5

us-gaap:GoodwillImpairedAccumulatedImpairmentLoss us-gaap:StatementBusinessSegments

us-gaap:GoodwillImpairedAccumulatedImpairmentLoss

ecol:EnvironmentalServicesSegment


Goodwill
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-312017-12-31
Value6.876.876.872902902906.876.876.875.457
Percentage of GoodwillImpairedAccumulatedImpairmentLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

ecol:FieldAndIndustrialServicesSegment


Goodwill
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value191919161616
Percentage of GoodwillImpairedAccumulatedImpairmentLoss289.7289.7289.75.75.75.7

us-gaap:GuaranteeObligationsCurrentCarryingValue us-gaap:GuaranteeObligationsByNature

us-gaap:GuaranteeObligationsCurrentCarryingValue

us-gaap:SuretyBond


Guarantee
Period End2020-12-31
Value12
Percentage of GuaranteeObligationsCurrentCarryingValue100.0

us-gaap:IncomeTaxesReceivable

us-gaap:IncomeTaxesReceivable


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value181718171010114.7867.071
Percentage of IncomeTaxesReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwillFairValueDisclosure us-gaap:BusinessAcquisition

us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwillFairValueDisclosure

ecol:NrcGroupHoldingsCorp


Indefinite
Period End2020-12-31
Value57
Percentage of IndefiniteLivedIntangibleAssetsExcludingGoodwillFairValueDisclosure100.0

us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwillFairValueDisclosure us-gaap:IndefiniteLivedIntangibleAssetsByMajorClass

ecol:PermitsAndLicenses


Indefinite
Period End2020-10-01
Value57
Percentage of IndefiniteLivedIntangibleAssetsExcludingGoodwillFairValueDisclosure0.0

us-gaap:IntangibleAssetsGrossExcludingGoodwill

us-gaap:IntangibleAssetsGrossExcludingGoodwill


Intangible
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value629628628641640639641331326
Percentage of IntangibleAssetsGrossExcludingGoodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestRateCashFlowHedgeGainLossToBeReclassifiedDuringNext12MonthsNet us-gaap:DerivativeInstrumentRisk, us-gaap:StatementEquityComponents

us-gaap:InterestRateCashFlowHedgeGainLossToBeReclassifiedDuringNext12MonthsNet

us-gaap:InterestRateSwap, us-gaap:AccumulatedGainLossNetCashFlowHedgeParent


Interest
Period End2021-06-302021-03-312020-12-312020-09-30
Value2900000.03300000.03600000.04100000.0
Percentage of InterestRateCashFlowHedgeGainLossToBeReclassifiedDuringNext12MonthsNet100.0100.0100.0100.0

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths


Lessee
Period End2020-12-31
Value17
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths100.0

us-gaap:LettersOfCreditOutstandingAmount us-gaap:CreditFacility

us-gaap:LettersOfCreditOutstandingAmount

ecol:NewCreditAgreementLetterOfCredit


Letters
Period End2021-06-302021-03-312020-12-312020-09-30
Value149.89.810
Percentage of LettersOfCreditOutstandingAmount100.0100.0100.0100.0

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

us-gaap:LiabilitiesFairValueDisclosure

us-gaap:AccruedLiabilities, us-gaap:FairValueInputsLevel3, ecol:ContingentConsideration


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value2.22.22.22.92.75.56.6
Percentage of LiabilitiesFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0

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

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


Liabilities
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value0.8629.74412139.0551.1761.408
Percentage of LiabilitiesFairValueDisclosure39.2442.9433.9488.4164.617.80.0

us-gaap:LiabilitiesFairValueDisclosure us-gaap:DerivativeInstrumentRisk, us-gaap:FairValueByMeasurementFrequency

us-gaap:InterestRateSwap, us-gaap:FairValueMeasurementsRecurring


Liabilities
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value0.8629.74412139.0551.1761.408
Percentage of LiabilitiesFairValueDisclosure39.2442.9433.9488.4164.617.80.0

us-gaap:LiabilitiesFairValueDisclosure us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring


Liabilities
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value0.8629.74412139.0551.1761.408
Percentage of LiabilitiesFairValueDisclosure39.2442.9433.9488.4164.617.80.0

us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsRecurring


Liabilities
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value2.2082.1732.8962.6576.9118.283
Percentage of LiabilitiesFairValueDisclosure100.498.899.998.4125.7125.5

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

us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsRecurring, ecol:ContingentConsideration


Liabilities
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value2.2082.1732.8962.6576.9118.283
Percentage of LiabilitiesFairValueDisclosure100.498.899.998.4125.7125.5

us-gaap:LiabilitiesFairValueDisclosure us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value0.8622.208111515159.4591.408
Percentage of LiabilitiesFairValueDisclosure39.2100.4541.7533.8586.9290.3143.30.0

us-gaap:LiabilitiesFairValueDisclosure us-gaap:FairValueByMeasurementFrequency, us-gaap:FinancialInstrument

us-gaap:FairValueMeasurementsRecurring, ecol:ContingentConsideration


Liabilities
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value2.2082.1732.8962.6576.9118.283
Percentage of LiabilitiesFairValueDisclosure100.498.899.998.4125.7125.5

us-gaap:LineOfCredit us-gaap:CreditFacility

us-gaap:LineOfCredit

ecol:NewCreditAgreementRevolvingCreditFacility


Line
Period End2021-06-302021-03-312020-09-30
Value341347387
Percentage of LineOfCredit100.0100.0100.0

us-gaap:LineOfCreditFacilityInterestRateAtPeriodEnd us-gaap:CreditFacility

us-gaap:LineOfCreditFacilityInterestRateAtPeriodEnd

ecol:NewCreditAgreementRevolvingCreditFacility


Line
Period End2021-06-302021-03-312020-12-312020-09-30
Value4.134.063.983.74
Percentage of LineOfCreditFacilityInterestRateAtPeriodEnd100.0100.0100.0100.0

us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity us-gaap:CreditFacility

us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity

ecol:NewCreditAgreementRevolvingCreditFacility


Line
Period End2021-06-302021-03-312020-12-312020-09-30
Value82142121102
Percentage of LineOfCreditFacilityRemainingBorrowingCapacity100.0100.0100.0100.0

us-gaap:LinesOfCreditCurrent

us-gaap:LinesOfCreditCurrent


Lines
Period End2021-06-302021-03-31
Value6269000.0277000.0
Percentage of LinesOfCreditCurrent100.0100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive


Long
Period End2020-12-31
Value423
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive


Long
Period End2020-12-31
Value351
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree


Long
Period End2021-06-302021-03-312020-12-31
Value4.53514.5
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree100.0100.0100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear


Long
Period End2021-06-302021-03-31
Value8519000.03652000.0
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear100.0100.0

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent


Operating
Period End2020-12-312019-12-31
Value3.693.8
Percentage of OperatingLeaseWeightedAverageDiscountRatePercent100.0100.0

us-gaap:OperatingLossCarryforwards us-gaap:IncomeTaxAuthority

us-gaap:OperatingLossCarryforwards

us-gaap:DomesticCountry


Operating
Period End2020-12-312019-12-31
Value6692
Percentage of OperatingLossCarryforwards100.0100.0

us-gaap:ForeignCountry


Operating
Period End2020-12-312019-12-31
Value7.22.7
Percentage of OperatingLossCarryforwards10.82.9

us-gaap:StateAndLocalJurisdiction


Operating
Period End2020-12-312019-12-31
Value5742
Percentage of OperatingLossCarryforwards85.645.9

us-gaap:OperatingLossCarryforwardsValuationAllowance us-gaap:IncomeTaxAuthority

us-gaap:OperatingLossCarryforwardsValuationAllowance

us-gaap:StateAndLocalJurisdiction


Operating
Period End2020-12-312019-12-312018-12-31
Value79000.0260000.073000.0
Percentage of OperatingLossCarryforwardsValuationAllowance100.0100.0100.0

us-gaap:OtherReceivablesGrossCurrent

us-gaap:OtherReceivablesGrossCurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value5636000.05353000.05554000.07275000.07317000.05959000.07000000.09739000.02241000.0
Percentage of OtherReceivablesGrossCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization

us-gaap:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization


Property
Period End2021-06-302021-03-312020-12-312020-09-302019-12-31
Value352334316301254
Percentage of PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization100.0100.0100.0100.0100.0

us-gaap:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization

us-gaap:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization


Property
Period End2021-06-302021-03-312020-12-312020-09-302019-12-31
Value447448456475478
Percentage of PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization100.0100.0100.0100.0100.0

us-gaap:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization

us-gaap:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization


Property
Period End2021-06-302021-03-312020-12-312020-09-302019-12-31
Value800783773776733
Percentage of PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization100.0100.0100.0100.0100.0

us-gaap:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization us-gaap:PropertyPlantAndEquipmentByType

ecol:CellDevelopmentCosts


Property
Period End2021-06-302021-03-312020-12-312020-09-302019-12-31
Value194193186178174
Percentage of PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization24.224.724.123.023.8

ecol:VehiclesVesselsAndOtherEquipment


Property
Period End2021-06-302021-03-312020-12-312020-09-302019-12-31
Value336331331345317
Percentage of PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization42.142.442.844.643.3

us-gaap:BuildingAndBuildingImprovements


Property
Period End2021-06-302021-03-312020-12-312020-09-302019-12-31
Value131130128114109
Percentage of PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization16.416.716.614.814.9

us-gaap:ConstructionInProgress


Property
Period End2021-06-302021-03-312020-12-312020-09-302019-12-31
Value4837446061
Percentage of PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization6.14.85.87.88.4

us-gaap:LandAndLandImprovements


Property
Period End2021-06-302021-03-312020-12-312020-09-302019-12-31
Value7272655852
Percentage of PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization9.19.38.57.67.2

us-gaap:RestrictedCashAndCashEquivalents

us-gaap:RestrictedCashAndCashEquivalents


Restricted
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-312016-12-31
Value1585000.01465000.01256000.01098000.0813000.0903000.0859000.0841000.0818000.0797000.0784000.0763000.01757000.01707000.0
Percentage of RestrictedCashAndCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestrictedCashAndInvestmentsNoncurrent

us-gaap:RestrictedCashAndInvestmentsNoncurrent


Restricted
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value5900000.05784000.05598000.05451000.05172000.05168000.05069000.05045000.04941000.0
Percentage of RestrictedCashAndInvestmentsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:SelfInsuranceReserve

us-gaap:SelfInsuranceReserve


Self
Period End2020-12-312019-12-312018-12-31
Value3300000.01000000.0826000.0
Percentage of SelfInsuranceReserve100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue

us-gaap:PerformanceShares


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value46.6946.6949.4549.5759.7959.7361.1161.1155.48
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestrictedStock


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value41.8541.3751.4751.4751.4758.1855.6255.6246.74
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue89.688.6104.1103.886.197.491.091.084.2

us-gaap:RestrictedStockUnitsRSU


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value39.6339.639.9242.2844.444.8559.0556.1153.77
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue84.984.880.785.374.375.196.691.896.9

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice

us-gaap:EmployeeStockOption


Share
Period End2021-06-302021-03-312020-12-312020-09-30
Value48.2948.2947.0647.06
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice100.0100.0100.0100.0

us-gaap:SharesIssuedPricePerShare us-gaap:AwardType, us-gaap:PlanName

us-gaap:SharesIssuedPricePerShare

us-gaap:RestrictedStock, ecol:OmnibusPlan


Shares
Period End2020-12-31
Value44.2
Percentage of SharesIssuedPricePerShare100.0

us-gaap:TreasuryStockCommonShares

us-gaap:TreasuryStockCommonShares


Treasury
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value251000.0277000.0358000.0369000.0370000.0415000.0013000.08000.0
Percentage of TreasuryStockCommonShares100.0100.0100.0100.0100.0100.00.0100.0100.0

us-gaap:TreasuryStockCommonValue

us-gaap:TreasuryStockCommonValue


Treasury
Period End2021-06-302021-03-312020-12-312020-09-302019-09-302018-12-31
Value111215160.7720.37
Percentage of TreasuryStockCommonValue100.0100.0100.0100.0100.0100.0

us-gaap:UnbilledReceivablesCurrent

us-gaap:UnbilledReceivablesCurrent


Unbilled
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value535252484249543026
Percentage of UnbilledReceivablesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:UnrecognizedTaxBenefitsIncomeTaxPenaltiesAccrued

us-gaap:UnrecognizedTaxBenefitsIncomeTaxPenaltiesAccrued


Unrecognized
Period End2020-09-30
Value0
Percentage of UnrecognizedTaxBenefitsIncomeTaxPenaltiesAccrued0.0

us-gaap:UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate

us-gaap:UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate


Unrecognized
Period End2020-12-312019-12-31
Value227000.0236000.0
Percentage of UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate100.0100.0

Line plots across dimensions of each concept


us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:ConsolidationItems, us-gaap:ProductOrService, us-gaap:StatementBusinessSegments
('us-gaap:OperatingSegments', None, 'ecol:FieldAndIndustrialServicesSegment')
Revenue From Contract With Customer Excluding Assessed Taxus-gaap: Consolidation Items, us-gaap: Product Or Service, us-gaap: Statement Business Segments
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:ProductOrService
(None,)
Revenue From Contract With Customer Excluding Assessed Taxus-gaap: Product Or Service
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
('us-gaap:OperatingSegments', None)
Revenue From Contract With Customer Excluding Assessed Taxus-gaap: Consolidation Items, us-gaap: Statement Business Segments
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:ConsolidationItems, us-gaap:StatementGeographical, us-gaap:StatementBusinessSegments
('us-gaap:OperatingSegments', None, 'ecol:FieldAndIndustrialServicesSegment')
Revenue From Contract With Customer Excluding Assessed Taxus-gaap: Consolidation Items, us-gaap: Statement Geographical, us-gaap: Statement Business Segments
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:ConsolidationItems, us-gaap:StatementGeographical, us-gaap:StatementBusinessSegments
('us-gaap:OperatingSegments', 'country:US', None)
Revenue From Contract With Customer Excluding Assessed Taxus-gaap: Consolidation Items, us-gaap: Statement Geographical, us-gaap: Statement Business Segments
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:StatementGeographical
(None,)
Revenue From Contract With Customer Excluding Assessed Taxus-gaap: Statement Geographical
us-gaap:Assets
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
('us-gaap:OperatingSegments', None)
Assetsus-gaap: Consolidation Items, us-gaap: Statement Business Segments
us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents
(None,)
Stockholders Equityus-gaap: Statement Equity Components
us-gaap:NoncurrentAssets
us-gaap:StatementGeographical
(None,)
Noncurrent Assetsus-gaap: Statement Geographical
us-gaap:Goodwill
us-gaap:BusinessAcquisition
(None,)
Goodwillus-gaap: Business Acquisition
us-gaap:Goodwill
us-gaap:StatementBusinessSegments
(None,)
Goodwillus-gaap: Statement Business Segments
us-gaap:Goodwill
us-gaap:ReportingUnit
(None,)
Goodwillus-gaap: Reporting Unit
us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill
us-gaap:IndefiniteLivedIntangibleAssetsByMajorClass
(None,)
Indefinite Lived Intangible Assets Excluding Goodwillus-gaap: Indefinite Lived Intangible Assets By Major Class
us-gaap:FiniteLivedIntangibleAssetsNet
us-gaap:FiniteLivedIntangibleAssetsByMajorClass
(None,)
Finite Lived Intangible Assets Netus-gaap: Finite Lived Intangible Assets By Major Class
us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents
(None,)
Stockholders Equityus-gaap: Statement Equity Components
us-gaap:DepreciationDepletionAndAmortization
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
('us-gaap:OperatingSegments', None)
Depreciation Depletion And Amortizationus-gaap: Consolidation Items, us-gaap: Statement Business Segments
us-gaap:PaymentsToAcquireProductiveAssets
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
('us-gaap:OperatingSegments', None)
Payments To Acquire Productive Assetsus-gaap: Consolidation Items, us-gaap: Statement Business Segments