ALNY


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

Table of contents



us-gaap:CommonStockValue
us-gaap:StatementEquityComponents
us-gaap:CommonStockSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareBasicAndDiluted

us-gaap:AllocatedShareBasedCompensationExpense
us-gaap:IncomeStatementLocation

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:CostOfGoodsAndServicesSold

us-gaap:CostsAndExpenses

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeTaxExpenseBenefit

us-gaap:InterestExpense
us-gaap:LitigationCase, us-gaap:SubsequentEventType
us-gaap:LitigationSettlementExpense

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:NonoperatingIncomeExpense

us-gaap:OperatingIncomeLoss

us-gaap:OtherComprehensiveIncomeLossNetOfTax
us-gaap:StatementEquityComponents

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:ResearchAndDevelopmentExpense
us-gaap:CounterpartyName, us-gaap:TypeOfArrangement
us-gaap:TypeOfArrangement

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:CounterpartyName, us-gaap:ProductOrService, us-gaap:TypeOfArrangement
us-gaap:CounterpartyName, us-gaap:TypeOfArrangement
us-gaap:ProductOrService
us-gaap:ProductOrService, us-gaap:StatementGeographical
us-gaap:TypeOfArrangement
us-gaap:CounterpartyName, us-gaap:TypeOfArrangement
us-gaap:Revenues

us-gaap:SellingGeneralAndAdministrativeExpense

us-gaap:Assets

us-gaap:Liabilities

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents

us-gaap:AssetsCurrent

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:AccountsReceivableNetCurrent
us-gaap:ProductOrService

us-gaap:InventoryNet

us-gaap:InventoryFinishedGoods

us-gaap:PrepaidExpenseAndOtherAssetsCurrent

us-gaap:PropertyPlantAndEquipmentGross
us-gaap:PropertyPlantAndEquipmentByType

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:DeferredTaxAssetsLiabilitiesNet

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OtherAssetsNoncurrent

us-gaap:EquitySecuritiesFvNi
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:FairValueByMeasurementFrequency

us-gaap:AccountsPayableCurrent

us-gaap:AccruedLiabilitiesCurrent

us-gaap:ContractWithCustomerLiabilityCurrent
us-gaap:CounterpartyName, us-gaap:ProductOrService, us-gaap:TypeOfArrangement
us-gaap:CounterpartyName, us-gaap:TypeOfArrangement

us-gaap:LiabilitiesCurrent

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OtherAccruedLiabilitiesCurrent

us-gaap:LongTermDebt

us-gaap:SecuredLongTermDebt

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:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
us-gaap:StatementEquityComponents

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:IncreaseDecreaseInAccountsReceivable

us-gaap:IncreaseDecreaseInInventories

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:ShareBasedCompensation

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:NetCashProvidedByUsedInFinancingActivities
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

us-gaap:DeferredTaxAssetsValuationAllowance

alny:AmortizationAndInterestAccretionRelatedToOperatingLeases
us-gaap:SubsequentEventType, us-gaap:TypeOfArrangement
alny:CollaborativeArrangementMaximumMilestonePayments
us-gaap:CounterpartyName, us-gaap:ProductOrService, us-gaap:TypeOfArrangement
alny:CollaborativeArrangementRoyaltiesPayablePercent
us-gaap:SubsequentEventType, us-gaap:TypeOfArrangement
alny:CollaborativeArrangementUpfrontPayment

alny:CostOfCollaborationManufacturingAndRoyalties

alny:IncreaseDecreaseInResearchAndDevelopmentExpense
alny:ResearchCollaborator, us-gaap:TypeOfArrangement
alny:MilestonePaymentEarned

alny:NonCashInterestExpenseOnSaleOfFutureRoyalties

alny:PaymentsForTransactionCostsRelatedToSaleOfFutureRoyaltiesAndDebt
us-gaap:CounterpartyName, us-gaap:TypeOfArrangement
alny:RoyaltyLiabilityInterestExpenseIncludingAmortizationOfClosingCosts
us-gaap:CounterpartyName
alny:TransactionPrice
us-gaap:CounterpartyName, us-gaap:ProductOrService, us-gaap:TypeOfArrangement
us-gaap:CounterpartyName, us-gaap:TypeOfArrangement

us-gaap:CapitalExpendituresIncurredButNotYetPaid

us-gaap:ContractWithCustomerLiabilityRevenueRecognized

us-gaap:DepreciationAmortizationAndAccretionNet
us-gaap:IncomeStatementLocation
us-gaap:DerivativeGainLossOnDerivativeNet

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:EquitySecuritiesFvNiGainLoss
us-gaap:FinancialInstrument
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities

us-gaap:IncreaseDecreaseInContractWithCustomerLiability

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets

us-gaap:InvestmentIncomeInterest
us-gaap:CreditFacility, us-gaap:DebtInstrument, us-gaap:LongtermDebtType
us-gaap:LineOfCreditFacilityCommitmentFeeAmount
us-gaap:CreditFacility, us-gaap:LongtermDebtType
us-gaap:LitigationCase
us-gaap:LitigationSettlementAmountAwardedToOtherParty
us-gaap:LitigationCase
us-gaap:LossContingencyAccrualCarryingValuePeriodIncreaseDecrease

us-gaap:OperatingLeasePayments

us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeReclassificationAdjustmentsNetOfTax

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax

us-gaap:OtherOperatingActivitiesCashFlowStatement

us-gaap:PaymentsForProceedsFromOtherInvestingActivities

us-gaap:PaymentsForProceedsFromTenantAllowance

us-gaap:PaymentsToAcquireAvailableForSaleSecuritiesDebt

us-gaap:PaymentsToAcquireRestrictedInvestments

us-gaap:ProceedsFromIssuanceOfPrivatePlacement

us-gaap:ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions
us-gaap:CreditFacility, us-gaap:LongtermDebtType
us-gaap:ProceedsFromLinesOfCredit

us-gaap:ProceedsFromSaleAndMaturityOfMarketableSecurities

us-gaap:ProceedsFromSaleOfRestrictedInvestments

us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
us-gaap:StatementEquityComponents
us-gaap:CounterpartyName, us-gaap:ProductOrService, us-gaap:TypeOfArrangement
us-gaap:RevenueFromCollaborativeArrangementExcludingRevenueFromContractWithCustomer

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability
us-gaap:CounterpartyName, us-gaap:SubsidiarySaleOfStock
us-gaap:SaleOfStockConsiderationReceivedOnTransaction
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodSharesShareBasedCompensationGross
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensationGross
us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised
us-gaap:StatementEquityComponents

alny:AccruedLicensingAndCollaborationAgreements

alny:AccruedPreClinicalClinicalTrialAndManufacturingCurrent

alny:AccruedProductRebatesAndDiscounts

alny:CapitalizedInventory
us-gaap:CounterpartyName, us-gaap:StatementScenario, us-gaap:TypeOfArrangement
alny:CollaborativeArrangementRoyaltiesAndCommercialMilestonesAcquiredByCollaboratorPercent

alny:DeferredTaxAssetsLeasingArrangement

alny:DeferredTaxAssetsSaleOfFutureRoyalties

alny:DeferredTaxLiabilitiesChangeInAccountingMethodAdjustment

alny:InventoryCurrentAndNoncurrent
us-gaap:IncomeTaxAuthority
alny:OperatingLossCarryforwardsNotSubjectToExpiration
us-gaap:IncomeTaxAuthority
alny:OperatingLossCarryforwardsSubjectToExpiration

alny:RoyaltyLiabilityCurrent

alny:RoyaltyLiabilityNoncurrent
us-gaap:CounterpartyName, us-gaap:TypeOfArrangement
us-gaap:AwardType
alny:ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPercentageOnFirstAnniversary
us-gaap:AwardType
alny:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestingPercentageInEachQuarter

us-gaap:AccountsReceivableNet

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

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
us-gaap:FinancialInstrument

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
us-gaap:FinancialInstrument

us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis
us-gaap:FinancialInstrument

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

us-gaap:AvailableForSaleSecuritiesDebtSecuritiesCurrent

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

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations

us-gaap:ContractWithCustomerLiability

us-gaap:ContractWithCustomerLiabilityNoncurrent

us-gaap:DeferredTaxAssetsDeferredIncome

us-gaap:DeferredTaxAssetsGoodwillAndIntangibleAssets

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsOperatingLossCarryforwards

us-gaap:DeferredTaxAssetsOther

us-gaap:DeferredTaxAssetsTaxCreditCarryforwardsResearch

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits

us-gaap:DeferredTaxLiabilitiesLeasingArrangements

us-gaap:DeferredTaxLiabilitiesOtherComprehensiveIncome

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment
us-gaap:BalanceSheetLocation, us-gaap:RetirementPlanFundingStatus
us-gaap:DefinedBenefitPlanBenefitObligation
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:DerivativeLiabilities
us-gaap:FairValueByMeasurementFrequency

us-gaap:EmployeeRelatedLiabilitiesCurrent
us-gaap:AwardType
us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
us-gaap:FinancialInstrument
us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue
us-gaap:BalanceSheetLocation
us-gaap:InventoryNoncurrent

us-gaap:InventoryRawMaterials

us-gaap:InventoryWorkInProcess

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths
us-gaap:CreditFacility, us-gaap:LongtermDebtType
us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity

us-gaap:LossContingencyAccrualAtCarryingValue
us-gaap:IncomeTaxAuthority
us-gaap:OperatingLossCarryforwards

us-gaap:RestrictedCash
us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:RestrictedCashAndCashEquivalents
us-gaap:FairValueByAssetClass, us-gaap:FairValueByMeasurementFrequency

us-gaap:RestrictedCashCurrent

us-gaap:RestrictedCashNoncurrent

us-gaap:RestrictedInvestmentsNoncurrent
us-gaap:LeaseContractualTerm
us-gaap:CounterpartyName
us-gaap:RevenueRemainingPerformanceObligation
us-gaap:CounterpartyName, us-gaap:TypeOfArrangement
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice
us-gaap:AwardType
us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1
us-gaap:IncomeTaxAuthority, us-gaap:TaxCreditCarryforward
us-gaap:TaxCreditCarryforwardAmount

us-gaap:ValuationAllowancesAndReservesBalance
us-gaap:ValuationAllowancesAndReservesType

Plots across concepts


IncomeStatement
Net Income Loss
Expenses
Other Nonoperating Income Expense
Balance Sheet
Operating Lease Right Of Use Asset
Assets
Inventory Net
Current Assets
Inventory Net
NonCurrent Assets
Other Assets Noncurrent
PropertyPlantAndEquipmentNet
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
Liabilities
Operating Lease Liability
Current Liabilities
Operating Lease Liability Current
Noncurrent Liabilities
Other Liabilities Noncurrent
Stockholders Equity
Retained Earnings Accumulated Deficit
CashFlow
Net Income Loss
NetCashProvidedByUsedInOperatingActivities
Net Income Loss
NetCashProvidedByUsedInInvestingActivities
Payments For Proceeds From Other Investing Activities
Shares
Weighted Average Number Of Share Outstanding Basic And Diluted
OperatingLeaseLiability
Operating Lease Liability Current
NonoperatingIncomeExpense
Nonoperating Income Expense
LesseeOperatingLeaseLiabilityPaymentsDue
Lessee Operating Lease Liability Payments Due Next Twelve Months
InventoryNet
Inventory Finished Goods

Tables

  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312018-01-012017-12-312017-09-302017-06-302017-03-31
us-gaap:CommonStockValue █▇▇▇▇▆▆▅▅▃▁▁▁▁1.1861.1731.1641.1611.1561.1311.1221.1131.111.0641.0111.0091.0051.005NA0.9970.9240.9170.861
 us-gaap:CommonStockSharesOutstanding us-gaap:StatementEquityComponents us-gaap:CommonStock██▇▇▇▆▆▅▅▃▁▁▁▁118.596117.321116.427116.143115.647113.168112.188111.325111.114106.4101.177007100.968100.569100.468NA99.666549NANANA
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding 117.772NANANA114.911NANANANANANANANANANANANANANA
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic 117.772NANANA114.911NANANANANANANANANANANANANANA
us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted NA117.08116.274115.986114.911112.748111.75108.701108.576105.4101.066100.783100.51999.979NA96.13991.82888.09886.027
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount NA15.397NANANA15.02NANANA14.585NANANA12.672NANANANA12.211
 us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities us-gaap:EmployeeStockOptionNA13.859NANANA13.609NANANA13.868NANANA12.515NANANANA12.048
 us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities us-gaap:RestrictedStockNA1.538NANANA1.411NANANA0.717NANANA0.157NANANANA0.163
us-gaap:EarningsPerShareBasic -1.61NANANA-1.56NANANANANANANANANANANANANANA
us-gaap:EarningsPerShareDiluted -1.61NANANA-1.56NANANANANANANANANANANANANANA
us-gaap:EarningsPerShareBasicAndDiluted NA-1.71-2.09-2.18-1.56-1.62-2.47-1.92-2.02-1.73-2.09-2.43-1.63-1.41NA-1.48-1.34-1.34-1.25
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312018-01-012017-12-312017-09-302017-06-302017-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312018-01-012017-12-312017-09-302017-06-302017-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312018-01-012017-12-312017-09-302017-06-302017-03-31
us-gaap:AllocatedShareBasedCompensationExpense ▂▅▃▃▂▃▆▄▂▂▂█▁▁32.07855.6934.27637.26433.75534.57866.19746.00930.60332.03227.97387.95422.24119.584NANANANANA
us-gaap:ComprehensiveIncomeNetOfTax ▆▅▂▂▆▆▁▅▄▆▄▃▇█-188.923-193.386-249.969-257.272-180.382-177.762-278.332-207.075-222.459-181.555-211.262-244.867-162.514-141.634NA-142.919-122.719-118.551-107.677
us-gaap:CostOfGoodsAndServicesSold █▆▆▆▆▄▄▂▂▂▁▁30.25623.02323.02421.79719.92913.30212.1765.2134.3263.3471.6650.137NANANANANANANA
us-gaap:CostsAndExpenses ███▇▆▆█▅▅▃▄▄▃▁366.713363.82357.784351.052302.821309.634369.754286.36280.985222.082241.389256.627222.261169.304NA185.227142.896136.406125.471
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest ▆▅▃▂▆▆▁▅▄▆▄▃▇█-188.331-199.275-243.599-252.452-177.903-181.646-276.583-208.929-218.521-181.22-211.08-244.837-163.481-141.276NA-142.227-122.937-118.42-107.29
us-gaap:IncomeTaxExpenseBenefit █▇▂▆█▅▁▁▇▅▄▄▃▂1.2281.016-0.0590.8391.3260.575-0.398-0.3940.960.6950.3610.4450.079-0.062NANANANANA
us-gaap:InterestExpense █▇▂▃▁33.41632.51528.51728.73127.248NANANA0.0NANANANANANANANANANA
 us-gaap:LitigationSettlementExpense us-gaap:LitigationCase,us-gaap:SubsequentEventType alny:Ionis,us-gaap:SubsequentEventNANANANANANANANANANANANANANANANANANANA
us-gaap:NetIncomeLoss ▅▅▃▂▆▆▁▅▄▆▄▃▇█-189.559-200.291-243.54-253.291-179.229-182.221-276.185-208.535-219.481-181.915-211.441-245.282-163.56-141.214NA-142.227-122.937-118.42-107.29
 us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents us-gaap:RetainedEarnings█▁-189.559-200.291NA-253.291-179.229-182.221NA-208.535-219.481-181.915NA-245.282-163.56-141.214NANANANANA
us-gaap:NonoperatingIncomeExpense ▂▄▁▃▇█▇▆▇▆▆▆█▆-42.171-13.021-49.377-27.25320.95628.51221.497.3717.757.5689.2769.72128.8736.129NA5.0762.8632.054-0.779
us-gaap:OperatingIncomeLoss █▆▆▄▆▅▁▅▄▆▅▃▆█-146.16-186.254-194.222-225.199-198.859-210.158-298.073-216.299-236.271-188.788-220.356-254.558-192.354-147.405NA-147.303-125.8-120.474-106.511
us-gaap:OtherComprehensiveIncomeLossNetOfTax ▅█▁▂▄▇▃▅▃▅▄▅▅▄0.6366.905-6.429-3.981-1.1534.459-2.1471.46-2.9780.360.1790.4151.046-0.42NANANANANA
us-gaap:OtherNonoperatingIncomeExpense ▂▅▁▃█▆▅▃▃▃▃▄▄▃-9.16419.044-21.952-0.59445.03923.03214.237-2.519-0.4530.043-1.2952.9252.2080.335NA0.841-0.433-0.523-2.907
us-gaap:ResearchAndDevelopmentExpense ▇▇▆▅▅▆█▅▅▃▃▄▄▁182.635185.899168.469161.783154.996169.571201.301160.796163.89129.127131.036139.945137.58296.857NA117.77295.25290.62786.984
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax █▇▆▅▄▄▃▃▂▂▂▁▂▂▁▂▁▁▂220.553177.566163.562125.853103.96299.47671.68170.06144.71433.29421.0332.06929.90721.8992.937.92417.09615.93218.96
 us-gaap:Revenues us-gaap:CounterpartyName,us-gaap:TypeOfArrangement alny:RegeneronPharmaceuticalsIncorporation,alny:GlobalStrategicCollaboration█▅▄▂▂▃▁▃37.325.820.813.113.216.58.514.7NANANANANANANANANANANA
us-gaap:SellingGeneralAndAdministrativeExpense ▆▆██▅▅▇▅▄▂▄▄▂▁145.323146.859166.291167.472127.896126.761156.277120.351112.76989.608108.688116.54584.67972.447NA67.45547.644NANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312018-01-012017-12-312017-09-302017-06-302017-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312018-01-012017-12-312017-09-302017-06-302017-03-31
us-gaap:Assets █▇█▇█▄▄▄▅▃▁▁▂▂3509.4293255.2693407.0613307.2833374.3672279.6242395.1342541.6222716.4112013.9991574.8021675.6541789.3891923.139NA1994.731358.2811434.2831133.926
us-gaap:Liabilities █▇▇▆▆▃▃▃▃▂▁▁▁▁2656.0672329.0792390.8142092.261974.641929.895956.442934.535959.216467.013272.837197.535168.587168.334NA228.299299.446311.317303.025
us-gaap:LiabilitiesAndStockholdersEquity █▇█▇█▄▄▄▅▃▁▁▂▂3509.4293255.2693407.0613307.2833374.3672279.6242395.1342541.6222716.4112013.9991574.8021675.6541789.3891923.139NA1994.731358.2811434.2831133.926
us-gaap:StockholdersEquity ▁▂▂▄▅▅▆▇█▆▄▆▇█853.362926.191016.2471215.0231399.7261349.7291438.6921607.0871757.1951546.9861301.9651478.1191620.8021754.805NA1766.4311058.8351122.966830.901
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312018-01-012017-12-312017-09-302017-06-302017-03-31
us-gaap:AssetsCurrent █▇▇▇▅▃▃▄▅▂▁▂▂▃2725.1632470.0832614.7772554.7022160.4461584.7731715.8641897.2652063.7731392.0131200.6961342.121502.5591685.297NA1764.74993.368960.709597.188
us-gaap:CashAndCashEquivalentsAtCarryingValue ▅▂▃▃▃▂▃▆█▄▂▁▁▂745.767379.543496.58496.704580.829467.779547.178923.3041136.289724.959420.146316.608361.457396.149NA645.361202.045408.671171.079
us-gaap:AccountsReceivableNetCurrent █▆▆▅▄▅▃▃▂▂▂▁146.587110.626102.41379.11869.11575.57243.01148.10930.73933.80118.763.362NANANA34.002NANANA
us-gaap:InventoryNet █▇▇▆▇▆▅▅▃▂▁84.35873.9475.20266.94277.41868.356.34854.56240.58732.00124.068NANANANANANANANA
us-gaap:InventoryFinishedGoods █▇▆▄▇▃▂▁▁▁▁16.45313.75312.6937.26113.2174.2262.6550.5790.4450.1350.097NANANANANANANANA
us-gaap:PrepaidExpenseAndOtherAssetsCurrent ▇▅▃▄▆█▅▄▃▅▄▇▁▃94.13675.9862.76774.76688.34998.69880.34373.53665.61681.67473.71390.84351.93266.665NA40.1230.4322.03318.127
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312018-01-012017-12-312017-09-302017-06-302017-03-31
us-gaap:PropertyPlantAndEquipmentGross NANA569.376NANANA501.337NANANA400.143NANANANA249.251NANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType alny:ComputerEquipmentAndSoftwareNANA19.064NANANA14.956NANANA13.495NANANANANANANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType alny:LaboratoryEquipmentNANA48.93NANANA29.755NANANA43.427NANANANANANANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType alny:ManufacturingEquipmentNANA41.089NANANANANANANANANANANANANANANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:BuildingNANA262.637NANANA250.38NANANA0.0NANANANANANANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:ConstructionInProgressNANA28.005NANANA54.195NANANA260.975NANANANANANANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:FurnitureAndFixturesNANA11.066NANANA10.339NANANA7.238NANANANANANANANA
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:LeaseholdImprovementsNANA149.505NANANA132.632NANANA65.928NANANANANANANANA
us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment NANA104.347NANANA76.158NANANA79.485NANANANA67.351NANANA
us-gaap:PropertyPlantAndEquipmentNet ███▇▇▇▇▆▅▅▄▃▂▁470.7464.572465.029444.69439.126429.814425.179396.456371.769341.712320.658272.652227.839201.979NA181.9161.899147.533129.962
us-gaap:DeferredTaxAssetsLiabilitiesNet NANA6.517NANANA3.433NANANA0.788NANANANANANANANA
us-gaap:OperatingLeaseRightOfUseAsset ▆▆▇█▃▁▁▂▃▃238.089237.213241.485245.234229.674221.28221.197223.444226.357226.412NANANANANANANANANA
us-gaap:OtherAssetsNoncurrent ▆██▇▄▃▃▂▂▂▂▃▃▁34.58742.67645.04537.93220.39619.03218.0699.6329.6879.0378.62316.05714.1665.215NA4.1711.4711.4711.471
us-gaap:EquitySecuritiesFvNi ▅▅▄▅█▃▁52.53356.96744.63357.21786.3138.07813.967NANANA1.20615.00412.044NANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312018-01-012017-12-312017-09-302017-06-302017-03-31
us-gaap:AccountsPayableCurrent ▆▅▆▃▃▄▅▄█▂▇▂▁▁53.07945.38151.96627.87226.12540.48449.88439.39271.21522.67159.70821.77211.98813.206NA28.3559.23923.1725.371
us-gaap:AccruedLiabilitiesCurrent █▆█▇▅▄▄▄▃▂▂▂▂▁341.187280.527355.909295.26211.186183.221197.201177.948138.8106.873112.71993.56489.86763.824NA72.20351.2643.8231.842
us-gaap:ContractWithCustomerLiabilityCurrent ▆▇█▇▇▆▅▇▆▁▁▁▁98.144116.34127.207114.601107.58786.04377.821107.35989.2422.6423.4963.4449.161NANA41.705NANANA
us-gaap:LiabilitiesCurrent █▇█▆▅▄▅▅▄▂▂▁▁▁554.648494.825585.27480.241384.302338.791352.594352.864328.604149.163179.494121.503113.659115.383NA144.251101.045108.72695.786
us-gaap:OperatingLeaseLiabilityCurrent ██▇▄▄▂▁▁▂39.36238.91736.87232.19233.44729.04327.68828.16529.347NANANANANANANANANANA
us-gaap:OtherAccruedLiabilitiesCurrent NANA49.587NANANA27.085NANANA23.634NANANANA10.858NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312018-01-012017-12-312017-09-302017-06-302017-03-31
us-gaap:LongTermDebt █▁▁433.151191.59191.278NANANANANANANANANANANANANANANANA
us-gaap:SecuredLongTermDebt NANA191.278NANANA0.00.030.030.030.030.030.030.0NA30.0150.0150.0150.0
us-gaap:OtherLiabilitiesNoncurrent █▇▄▂▃▂▂▂▂▁▁▁▁▁71.63360.46137.90816.34118.8559.1989.339.0369.5145.0724.9654.3354.1864.458NA4.3472.8422.8153.184
us-gaap:OperatingLeaseLiabilityNoncurrent ▅▅▇█▃▁▁▁▁288.559288.015293.039297.262281.618275.782276.135276.456277.211NANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo NANA46.392NANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree NANA43.764NANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour NANA42.918NANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive NANA41.19NANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive NANA323.473NANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312018-01-012017-12-312017-09-302017-06-302017-03-31
us-gaap:StockholdersEquity ▁▂▂▄▅▅▆▇█▆▄▆▇█853.362926.191016.2471215.0231399.7261349.7291438.6921607.0871757.1951546.9861301.9651478.1191620.8021754.805NA1766.4311058.8351122.966830.901
us-gaap:CommonStockValue █▇▇▇▇▆▆▅▅▃▁▁▁▁1.1861.1731.1641.1611.1561.1311.1221.1131.111.0641.0111.0091.0051.005NA0.9970.9240.9170.861
us-gaap:AdditionalPaidInCapitalCommonStock ██▇▇▇▆▅▅▅▃▂▁▁▁5863.4765747.3945644.0745592.8845520.325289.9665201.1765091.2485034.2844601.6624175.1394140.0334037.8534009.342NA3947.5523097.113038.5292627.969
us-gaap:RetainedEarningsAccumulatedDeficit ▁▁▂▃▃▄▄▅▅▆▆▇██-4975.219-4785.66-4585.369-4341.829-4088.538-3909.309-3727.088-3450.903-3242.368-3022.887-2840.972-2629.531-2384.249-2220.689NA-2147.685-2005.458-1882.521-1764.101
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax ▆▅▁▅▇█▅▇▆█▇▇▇▆-36.081-36.717-43.622-37.193-33.212-32.059-36.518-34.371-35.831-32.853-33.213-33.392-33.807-34.853NA-34.433-33.741-33.959-33.828
us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue ▁█32.92856.295NA40.22833.70734.578NA46.66530.79832.541NA88.41221.99719.463NANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312018-01-012017-12-312017-09-302017-06-302017-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities ▃▁▃▃▂▁▂▂█▂▂▂▃▂-121.856-235.66-123.144-110.326-135.33-246.161-195.98-182.632288.695-188.51-150.457-153.808-102.687-155.664NA-103.044-98.363NANA
us-gaap:NetCashProvidedByUsedInInvestingActivities ▇▆▄▅▁▇▃▅▃▇█▆▆▄157.02471.352-97.888-10.088-441.23113.688-220.85-10.077-289.402102.652248.96496.17462.621-134.814NA-160.588-137.178NANA
us-gaap:NetCashProvidedByUsedInFinancingActivities ▄▂▃▂█▂▂▁▅▅▁▁▁▂329.81151.177217.9534.147689.01353.86940.342-20.699412.61390.9315.37812.9895.58141.522NA706.94828.915NANA
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect █▃▄▄▅▄▁▂█▇▅▄▄▂366.06-117.041-0.11-84.125112.888-79.235-376.122-213.854411.9305.073103.885-44.645-34.485-248.956NA443.316-206.626NANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312018-01-012017-12-312017-09-302017-06-302017-03-31
us-gaap:IncreaseDecreaseInAccountsReceivable █▆▇▆▄█▅▇▅▆▆▅▁▆35.31110.70921.1668.971-6.78332.882-5.47917.783-3.10715.04115.3980.401-47.80716.766NA19.358NANANA
us-gaap:IncreaseDecreaseInInventories ▄▁▆▃█▇▄█▆▅█3.955-1.9348.4642.78412.22611.9524.31613.0557.9067.13412.291NANANANANANANANA
us-gaap:NetCashProvidedByUsedInOperatingActivities ▃▁▃▃▂▁▂▂█▂▂▂▃▂-121.856-235.66-123.144-110.326-135.33-246.161-195.98-182.632288.695-188.51-150.457-153.808-102.687-155.664NA-103.044-98.363NANA
us-gaap:NetIncomeLoss ▅▅▃▂▆▆▁▅▄▆▄▃▇█-189.559-200.291-243.54-253.291-179.229-182.221-276.185-208.535-219.481-181.915-211.441-245.282-163.56-141.214NA-142.227-122.937-118.42-107.29
 us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents us-gaap:RetainedEarnings█▁-189.559-200.291NA-253.291-179.229-182.221NA-208.535-219.481-181.915NA-245.282-163.56-141.214NANANANANA
us-gaap:ShareBasedCompensation ▂▅▃▃▂▃▆▄▂▂▂█▁▁32.07855.6934.27637.26433.75534.57866.19746.00930.60332.03227.97387.95422.24119.584NA27.11725.95524.0315.717
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312018-01-012017-12-312017-09-302017-06-302017-03-31
us-gaap:NetCashProvidedByUsedInInvestingActivities ▇▆▄▅▁▇▃▅▃▇█▆▆▄157.02471.352-97.888-10.088-441.23113.688-220.85-10.077-289.402102.652248.96496.17462.621-134.814NA-160.588-137.178NANA
us-gaap:PaymentsToAcquirePropertyPlantAndEquipment ▁▂▃▁▂▃▇▆▃█▆█▃▃11.24617.17821.66812.41816.65819.61738.80536.05821.24444.04937.51345.40922.70821.257NA20.72825.67821.65136.152
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312018-01-012017-12-312017-09-302017-06-302017-03-31
us-gaap:NetCashProvidedByUsedInFinancingActivities ▄▂▃▂█▂▂▁▅▅▁▁▁▂329.81151.177217.9534.147689.01353.86940.342-20.699412.61390.9315.37812.9895.58141.522NA706.94828.915NANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312018-01-012017-12-312017-09-302017-06-302017-03-31

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value1186000.01173000.01164000.01161000.01156000.01131000.01122000.01113000.01110000.01064000.01011000.01009000.01005000.01005000.0997000.0924000.0917000.0861000.0859000.0858000.0856000.0855000.0851000.0847000.0845000.0842000.0772000.0767000.0763000.0755000.0637000.0632000.0624000.0621000.0525000.0524000.0520000.0519000.0427000.0427000.0427000.0424000.0423000.0418000.0
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.10.10.10.10.10.00.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.20.10.10.10.20.20.20.20.20.10.10.10.10.1

Common Stock Shares Outstanding

us-gaap:CommonStockSharesOutstanding us-gaap:StatementEquityComponents

us-gaap:CommonStockSharesOutstanding

us-gaap:CommonStock


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value1181171161161151131121111111061011001001009985857763
Percentage of CommonStockSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding


Weighted
Period End2021-06-302020-06-30
Value117114
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic


Weighted
Period End2021-06-302020-06-30
Value117114
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0

Weighted Average Number Of Share Outstanding Basic And Diluted

us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted

us-gaap:WeightedAverageNumberOfShareOutstandingBasicAndDiluted


Weighted
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value1171161151141121111081081051011001009996918886858585858484848276767567626261595151514642424242
Percentage of WeightedAverageNumberOfShareOutstandingBasicAndDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount


Antidilutive
Period End2021-03-312020-03-312019-03-312018-03-312017-03-312016-03-312015-03-312014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-30
Value1515141212107.8058.5738.6149.1719.1728.7949.2369.7439.1579.266
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities

us-gaap:EmployeeStockOption


Antidilutive
Period End2021-03-312020-03-312019-03-312018-03-312017-03-312016-03-312015-03-31
Value1313131212107.775
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount90.090.695.198.898.798.299.6

us-gaap:RestrictedStock


Antidilutive
Period End2021-03-312020-03-312019-03-312018-03-312017-03-312016-03-312015-03-312014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-30
Value1.5381.4110.7170.1570.1630.1850.030.010.5930.6040.6040.6380.6580.6580.3550.341
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount10.09.44.91.21.31.80.40.16.96.66.67.37.16.83.93.7

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareBasic


Earnings
Period End2021-06-302020-06-30
Value-1.61-1.56
Percentage of EarningsPerShareBasic100.0100.0

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareDiluted


Earnings
Period End2021-06-302020-06-30
Value-1.61-1.56
Percentage of EarningsPerShareDiluted100.0100.0

Earnings Per Share Basic And Diluted

us-gaap:EarningsPerShareBasicAndDiluted

us-gaap:EarningsPerShareBasicAndDiluted


Earnings
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value-1.71-2.09-2.18-1.56-1.62-2.47-1.92-2.02-1.73-2.09-2.43-1.63-1.41-1.48-1.34-1.34-1.25-1.32-1.21-1.05-1.21-1.07-0.91-0.85-0.62-0.28-0.58-0.58-3.7-0.51-0.48-0.29-0.15-1.2-0.38-0.25-0.25-0.33-0.31-0.33-0.38-0.17-0.23-0.35
Percentage of EarningsPerShareBasicAndDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Allocated Share Based Compensation Expense

us-gaap:AllocatedShareBasedCompensationExpense

us-gaap:AllocatedShareBasedCompensationExpense


Allocated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value3255343733346646303227872219
Percentage of AllocatedShareBasedCompensationExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax14.531.421.029.632.534.892.365.768.496.2133.04251.074.489.4

us-gaap:AllocatedShareBasedCompensationExpense us-gaap:IncomeStatementLocation

us-gaap:ResearchAndDevelopmentExpense


Allocated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value1324141315163422151612451110
Percentage of AllocatedShareBasedCompensationExpense40.843.843.536.846.846.452.549.449.950.346.452.152.251.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.913.79.110.915.216.148.532.534.248.461.72212.938.846.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ResearchAndDevelopmentExpense0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:SellingGeneralAndAdministrativeExpenses


Allocated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value183119231718312315151542109.447
Percentage of AllocatedShareBasedCompensationExpense59.256.256.563.253.253.647.550.650.149.753.647.947.848.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax8.617.611.818.717.318.643.833.234.347.871.32038.235.543.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:SellingGeneralAndAdministrativeExpenses0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Comprehensive Income Net Of Tax

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTax


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-188.923-193.386-249.969-257.272-180.382-177.762-278.332-207.075-222.459-181.555-211.262-244.867-162.514-141.634-142.919-122.719-118.551-107.677-118.597-103.553-109.414-116.354-79.133-102.773-105.406-47.15512-50.786-47.121-245.63-39.808-30.648-10.86-3.854-46.634-19.332-12.981-11.24-14.317-13.142-14.052-17.017-7.504-9.628-14.169-12.216
Percentage of ComprehensiveIncomeNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-85.7-108.9-152.8-204.4-173.5-178.7-388.3-295.6-497.5-545.3-1004.4-11835.0-543.4-646.8-376.9-717.8-744.1-567.90.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Cost Of Goods And Services Sold

us-gaap:CostOfGoodsAndServicesSold

us-gaap:CostOfGoodsAndServicesSold


Cost
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value302323211913125.2134.3263.3471.6650.137
Percentage of CostOfGoodsAndServicesSold100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax13.713.014.117.319.213.417.07.49.710.17.96.6

Costs And Expenses

us-gaap:CostsAndExpenses

us-gaap:CostsAndExpenses


Costs
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value366363357351302309369286280222241256222169185142136125
Percentage of CostsAndExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax166.3204.9218.7278.9291.3311.3515.8408.7628.4667.01147.712403.4743.2773.1488.4835.8856.2661.8

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

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value-188330000.0-199280000.0-243600000.0-252450000.0-177900000.0-181650000.0-276580000.0-208930000.0-218520000.0-181220000.0-211080000.0-244840000.0-163480000.0-141280000.0-142230000.0-122940000.0-118420000.0-107290000.0-90129000.0-102970000.0-90721000.0-76792000.0-71352000.0-51208000.0-43480000.0-43922000.0-44389000.0-268810000.0-29336000.0-31956000.0-21053000.0-9575000.0-72760000.0-19502000.0-12956000.0-11368000.0
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-85.4-112.2-148.9-200.6-171.1-182.6-385.9-298.2-488.7-544.3-1003.6-11833.6-546.6-645.1-375.0-719.1-743.3-565.90.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxExpenseBenefit


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312013-12-312013-09-302013-06-302010-12-312010-09-302010-06-30
Value1228000.01016000.0-59000.0839000.01326000.0575000.0-398000.0-394000.0960000.0695000.0361000.0445000.079000.0-62000.03021000.0-2270000.0-2884000.0427000.0298000.0-229000.0
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.60.6-0.00.71.30.6-0.6-0.62.12.11.721.50.3-0.30.00.00.00.00.00.0

Interest Expense

us-gaap:InterestExpense

us-gaap:InterestExpense


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-06-30
Value33322828270.0
Percentage of InterestExpense100.0100.0100.0100.0100.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax15.218.317.422.826.20.0

Litigation Settlement Expense

us-gaap:LitigationSettlementExpense us-gaap:LitigationCase, us-gaap:SubsequentEventType

us-gaap:LitigationSettlementExpense

alny:Ionis, us-gaap:SubsequentEvent


Litigation
Period End2021-01-31
Value41
Percentage of LitigationSettlementExpense100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax alny:Ionis us-gaap:SubsequentEvent0.0

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-189.559-200.291-243.54-253.291-179.229-182.221-276.185-208.535-219.481-181.915-211.441-245.282-163.56-141.214-142.227-122.937-118.42-107.29-112.934-104.071-90.129-102.974-90.721-76.792-71.783-50.777-21.389-43.989-44.074-250.943-32.357-29.686-18.169-9.013-62.188-19.502-12.956-11.368-14.303-13.237-13.824-16.285-6.93-9.63-14.632-12.323
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-85.9-112.8-148.9-201.3-172.4-183.2-385.3-297.6-490.9-546.4-1005.3-11855.1-546.9-644.8-375.0-719.1-743.3-565.90.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value-189.559-200.291-253.291-179.229-182.221-208.535-219.481-181.915-245.282-163.56-141.214
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-85.9-112.8-201.3-172.4-183.2-297.6-490.9-546.4-11855.1-546.9-644.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.0

Nonoperating Income Expense

us-gaap:NonoperatingIncomeExpense

us-gaap:NonoperatingIncomeExpense


Nonoperating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-42.171-13.021-49.377-27.2532028217.37177.5689.2769.721286.1295.0762.8632.054-0.7792.4992.6052.3217.0541.7911.5381.5921.0142.2321.2770.6160.2510.2560.2780.2590.22915-1.355-0.889-0.475-0.717-0.799-0.706-0.6095.907-0.604-3.235-0.999
Percentage of NonoperatingIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-19.1-7.3-30.2-21.720.228.730.010.539.722.744.1469.896.528.013.416.712.9-4.10.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Operating Income Loss

us-gaap:OperatingIncomeLoss

us-gaap:OperatingIncomeLoss


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-146160000.0-186250000.0-194220000.0-225200000.0-198860000.0-210160000.0-298070000.0-216300000.0-236270000.0-188790000.0-220360000.0-254560000.0-192350000.0-147400000.0-147300000.0-125800000.0-120470000.0-106510000.0-115430000.0-106680000.0-92450000.0-110030000.0-92512000.0-78330000.0-72944000.0-52222000.0-45712000.0-45199000.0-45005000.0-269060000.0-29592000.0-32234000.0-21312000.0-9804000.0-88349000.0-18147000.0-12067000.0-10893000.0-13586000.0-12438000.0-13118000.0-15676000.0-12410000.0-8728000.0-11626000.0-11306000.0
Percentage of OperatingIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-66.3-104.9-118.7-178.9-191.3-211.3-415.8-308.7-528.4-567.0-1047.7-12303.4-643.2-673.1-388.4-735.8-756.2-561.80.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Other Comprehensive Income Loss Net Of Tax

us-gaap:OtherComprehensiveIncomeLossNetOfTax

us-gaap:OtherComprehensiveIncomeLossNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value636000.06905000.0-6429000.0-3981000.0-1153000.04459000.0-2147000.01460000.0-2978000.0360000.0179000.0415000.01046000.0-420000.0
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.33.9-3.9-3.2-1.14.5-3.02.1-6.71.10.920.13.5-1.9

us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


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
Value58000.058000.0-456000.076000.072000.074000.0691000.071000.0-4282000.000
Percentage of OtherComprehensiveIncomeLossNetOfTax9.10.87.1-1.9-6.21.7-32.24.9143.80.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.0-0.30.10.10.11.00.1-9.60.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AccumulatedDefinedBenefitPlansAdjustment0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


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-247000.0-1000.0-557000.0-1481000.0-1796000.04045000.0-214000.0-50000.0462000.0360000.0179000.0415000.0
Percentage of OtherComprehensiveIncomeLossNetOfTax-38.8-0.08.737.2155.890.710.0-3.4-15.5100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.1-0.0-0.3-1.2-1.74.1-0.3-0.11.01.10.920.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value636000.06905000.0-3981000.0-1153000.04459000.01460000.0-2978000.0360000.0415000.01046000.0-420000.0
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.33.9-3.2-1.14.52.1-6.71.120.13.5-1.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.0

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
Value825000.06848000.0-5416000.0-2576000.0571000.0340000.0-2624000.01439000.0842000.000
Percentage of OtherComprehensiveIncomeLossNetOfTax129.799.284.264.7-49.57.6122.298.6-28.30.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.43.9-3.3-2.00.50.3-3.72.11.90.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AccumulatedTranslationAdjustment0.00.00.00.00.00.00.00.00.00.00.0

Other Nonoperating Income Expense

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:OtherNonoperatingIncomeExpense


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-9.16419-21.952-0.594452314-2.519-0.4530.043-1.2952.9252.2080.3350.841-0.433-0.523-2.9070.30.4010.2295.2410.175-0.072-0.0271.4520.524-0.077-0.082-0.029-0.012-0.0110.0050.164-0.003-0.0210.1910.001-0.597-0.0160.0816.3510.020.043-0.011
Percentage of OtherNonoperatingIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-4.210.7-13.4-0.543.323.219.9-3.6-1.00.1-6.2141.47.41.52.2-2.5-3.3-15.30.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Research And Development Expense

us-gaap:ResearchAndDevelopmentExpense

us-gaap:ResearchAndDevelopmentExpense


Research
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value18218516816115416920116016312913113913796117959086105978396826867585546444332342422212221212324252626272824
Percentage of ResearchAndDevelopmentExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax82.8104.7103.0128.5149.1170.5280.8229.5366.5387.8623.06763.9460.0442.3310.5557.2568.8458.80.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ResearchAndDevelopmentExpense us-gaap:CounterpartyName, us-gaap:TypeOfArrangement

alny:Mdco, alny:ClinicalTrialAndManufacturing


Research
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value0.00.00.9980.0010.3470.0651.6120.0860.9370.00.6410.0190.3070.05.095
Percentage of ResearchAndDevelopmentExpense0.00.00.60.00.20.01.20.10.70.00.70.00.30.05.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.01.00.00.50.14.80.445.30.02.90.11.80.026.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax alny:Mdco alny:ClinicalTrialAndManufacturing0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

alny:Mdco, alny:Other


Research
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-312017-09-302017-06-302017-03-31
Value0.0670.2780.2660.2380.3980.010.050.2010.0020.0820.00.00.024
Percentage of ResearchAndDevelopmentExpense0.00.20.20.10.20.00.00.20.00.10.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.30.30.30.60.00.21.00.10.20.00.00.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax alny:Mdco alny:Other0.00.00.00.00.00.00.00.00.00.00.00.00.0

alny:Novartis, alny:ClinicalTrialAndManufacturing


Research
Period End2021-06-302020-06-302020-03-31
Value0.6780.00.998
Percentage of ResearchAndDevelopmentExpense0.40.00.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.30.01.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax alny:Novartis alny:ClinicalTrialAndManufacturing0.00.00.0

alny:Novartis, alny:Other


Research
Period End2021-06-302021-03-312020-06-302020-03-31
Value0.0520.0030.2780.266
Percentage of ResearchAndDevelopmentExpense0.00.00.20.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.30.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax alny:Novartis alny:Other0.00.00.00.0

alny:OtherCollaborations, alny:Other


Research
Period End2021-06-302020-06-30
Value0.1490.165
Percentage of ResearchAndDevelopmentExpense0.10.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax alny:OtherCollaborations alny:Other0.00.0

alny:RegeneronPharmaceuticalsIncorporation, alny:ClinicalTrialAndManufacturing


Research
Period 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
Value9.3924.7992.5513.3552.7844.6121.6410.6370.5150.00.00.0
Percentage of ResearchAndDevelopmentExpense5.12.61.52.11.82.70.80.40.30.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.32.71.62.72.74.62.30.91.20.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax alny:RegeneronPharmaceuticalsIncorporation alny:ClinicalTrialAndManufacturing0.00.00.00.00.00.00.00.00.00.00.00.0

alny:RegeneronPharmaceuticalsIncorporation, alny:ExternalServices


Research
Period 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
Value0.1680.0940.1040.0430.0240.0-0.6660.9590.0510.00.00.0
Percentage of ResearchAndDevelopmentExpense0.10.10.10.00.00.0-0.30.60.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.10.10.00.00.0-0.91.40.10.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax alny:RegeneronPharmaceuticalsIncorporation alny:ExternalServices0.00.00.00.00.00.00.00.00.00.00.00.0

alny:RegeneronPharmaceuticalsIncorporation, alny:Other


Research
Period 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
Value1012119.1671211119.5180.4250.00.00.0
Percentage of ResearchAndDevelopmentExpense6.06.66.65.78.16.85.95.90.30.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.96.96.87.312.211.616.513.61.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax alny:RegeneronPharmaceuticalsIncorporation alny:Other0.00.00.00.00.00.00.00.00.00.00.00.0

alny:SanofiGenzyme, alny:ClinicalTrialAndManufacturing


Research
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value0.011-0.0680.5130.1990.00.4723.2622.9454.8264.1974.308171047424340
Percentage of ResearchAndDevelopmentExpense0.0-0.00.30.10.00.22.01.83.73.23.112.810.940.644.948.346.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.0-0.00.40.20.00.74.76.614.520.0208.258.848.1126.0250.2274.8214.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax alny:SanofiGenzyme alny:ClinicalTrialAndManufacturing0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

alny:SanofiGenzyme, alny:ExternalServices


Research
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value0.0520.1350.0170.0120.0170.0080.110.0810.1350.2450.5881.8342.6731.4771.5020.9290.567
Percentage of ResearchAndDevelopmentExpense0.00.10.00.00.00.00.10.00.10.20.41.32.81.31.61.00.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.10.00.00.00.00.20.20.41.228.46.112.23.98.85.83.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax alny:SanofiGenzyme alny:ExternalServices0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

alny:SanofiGenzyme, alny:Other


Research
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value0.8591.2570.4790.1650.2310.3361.5880.0340.0590.1340.3950.2410.5090.9431.3941.5541.436
Percentage of ResearchAndDevelopmentExpense0.50.70.30.10.10.21.00.00.00.10.30.20.50.81.51.71.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.50.80.40.20.20.52.30.10.20.619.10.82.32.58.29.87.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax alny:SanofiGenzyme alny:Other0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

alny:VirBiotechnologyInc, alny:ClinicalTrialAndManufacturing


Research
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0.6861.029151.3791.0390.3394.9684.8430.2480.2940.4210.85.4970.554
Percentage of ResearchAndDevelopmentExpense0.40.69.30.90.70.22.53.00.20.20.30.64.00.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.30.69.61.11.00.36.96.90.60.92.038.718.42.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax alny:VirBiotechnologyInc alny:ClinicalTrialAndManufacturing0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

alny:VirBiotechnologyInc, alny:ExternalServices


Research
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0.4970.1590.0980.2770.1570.0520.1130.020.0120.2360.8771.0236.1510.688
Percentage of ResearchAndDevelopmentExpense0.30.10.10.20.10.00.10.00.00.20.70.74.50.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.20.10.10.20.20.10.20.00.00.74.249.420.63.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax alny:VirBiotechnologyInc alny:ExternalServices0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

alny:VirBiotechnologyInc, alny:Other


Research
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value0.6981.3553.0513.2473.5991.6932.0122.3930.2110.129-0.4320.00.2920.2
Percentage of ResearchAndDevelopmentExpense0.40.71.82.02.31.01.01.50.10.1-0.30.00.20.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.30.81.92.63.51.72.83.40.50.4-2.10.01.00.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax alny:VirBiotechnologyInc alny:Other0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ResearchAndDevelopmentExpense us-gaap:TypeOfArrangement

alny:ClinicalTrialAndManufacturing


Research
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value105.839185.2474.0225.9497.0829.0893.7736.732
Percentage of ResearchAndDevelopmentExpense5.93.110.83.22.63.53.55.72.35.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.93.311.14.23.96.09.913.08.420.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax alny:ClinicalTrialAndManufacturing0.00.00.00.00.00.00.00.00.00.0

alny:ExternalServices


Research
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value0.6650.3050.3370.3370.1930.069-6.5477.0810.1440.381
Percentage of ResearchAndDevelopmentExpense0.40.20.20.20.10.0-3.34.40.10.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.30.20.20.30.20.1-9.110.10.31.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax alny:ExternalServices0.00.00.00.00.00.00.00.00.00.0

alny:Other


Research
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value11141512161314130.680.238
Percentage of ResearchAndDevelopmentExpense6.57.89.28.010.88.17.28.60.40.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.38.19.510.316.013.820.119.81.50.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax alny:Other0.00.00.00.00.00.00.00.00.00.0

Revenue From Contract With Customer Excluding Assessed Tax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312018-01-012017-12-312017-09-302017-06-302017-03-31
Value2201771631251039971704433212.06929212.937171518
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:CounterpartyName, us-gaap:ProductOrService, us-gaap:TypeOfArrangement

alny:RegeneronPharmaceuticalsIncorporation, alny:C5LicenseObligation, alny:GlobalStrategicCollaboration


Revenue
Period End2021-06-302021-03-312020-06-30
Value15130.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.17.60.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.17.60.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax alny:RegeneronPharmaceuticalsIncorporation alny:C5LicenseObligation alny:GlobalStrategicCollaboration100.0100.00.0

alny:RegeneronPharmaceuticalsIncorporation, alny:ResearchServicesObligation, alny:GlobalStrategicCollaboration


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value109.8111010129.211
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.65.57.08.59.912.412.815.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.65.57.08.59.912.412.815.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax alny:RegeneronPharmaceuticalsIncorporation alny:ResearchServicesObligation alny:GlobalStrategicCollaboration100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:CounterpartyName, us-gaap:TypeOfArrangement

alny:Mdco, us-gaap:CollaborativeArrangement


Revenue
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value1.0913.8781.060.0420.5280.01.7450.8320.00.6621.295202.255
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.93.71.10.10.80.05.24.00.02.25.952.913.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.93.71.10.10.80.05.24.00.02.25.952.913.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax alny:Mdco us-gaap:CollaborativeArrangement100.0100.0100.0100.0100.00.0100.0100.00.0100.0100.0100.0100.0

alny:Novartis, us-gaap:CollaborativeArrangement


Revenue
Period End2021-06-302021-03-312020-06-302020-03-31
Value8.9088.1113.8781.06
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.04.63.71.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.04.63.71.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax alny:Novartis us-gaap:CollaborativeArrangement100.0100.0100.0100.0

alny:OtherCollaborations, us-gaap:CollaborativeArrangement


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value0.1050.5210.1361.750.3170.4590.0610.4550.3090.2130.0310.2120.0550.5093.0140.238
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.30.11.40.30.50.10.60.70.60.110.20.22.37.91.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.30.11.40.30.50.10.60.70.60.110.20.22.37.91.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax alny:OtherCollaborations us-gaap:CollaborativeArrangement100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

alny:RegeneronPharmaceuticalsIncorporation, us-gaap:CollaborativeArrangement


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
Value46302414151910150.70.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax21.017.114.811.814.819.614.121.81.60.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax21.017.114.811.814.819.614.121.81.60.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax alny:RegeneronPharmaceuticalsIncorporation us-gaap:CollaborativeArrangement100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0

alny:SanofiGenzyme, us-gaap:CollaborativeArrangement


Revenue
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value0.2020.420.3730.00.5941.8824.3834.1175.63-1.5623181314
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.30.40.00.82.79.812.426.8-75.477.286.135.385.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.30.40.00.82.79.812.426.8-75.477.286.135.385.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax alny:SanofiGenzyme us-gaap:CollaborativeArrangement100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

alny:VirBiotechnologyInc, us-gaap:CollaborativeArrangement


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
Value3.9782.8229.928.5126.4486.5164.9215.8691.0910.9282.4652.9576.1131.242
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.81.66.16.86.26.66.98.42.42.811.7142.920.45.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.81.66.16.86.26.66.98.42.42.811.7142.920.45.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax alny:VirBiotechnologyInc us-gaap:CollaborativeArrangement100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService

alny:GIVLAARI


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-06-302019-03-31
Value30242216105.2740.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax13.913.913.513.310.65.30.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax13.913.913.513.310.65.30.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax alny:GIVLAARI100.0100.0100.0100.0100.0100.00.00.0

alny:ONPATTRO


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1131019082666655463826
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax51.657.455.265.664.067.077.865.885.579.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax51.657.455.265.664.067.077.865.885.579.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax alny:ONPATTRO100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

alny:OXLUMO


Revenue
Period End2021-06-302021-03-31
Value169.145
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.45.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.45.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax alny:OXLUMO100.0100.0

us-gaap:Product


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-03-31
Value16013511299777155463826120.460.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax72.976.569.078.874.672.378.165.885.579.057.422.20.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax72.976.569.078.874.672.378.165.885.579.057.422.20.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Product100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:Royalty


Revenue
Period End2021-06-30
Value0.347
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Royalty100.0

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

alny:GIVLAARI, alny:NonUSOrEurope


Revenue
Period End2021-06-302021-03-31
Value0.2420.038
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax alny:GIVLAARI alny:NonUSOrEurope100.0100.0

alny:GIVLAARI, country:US


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value221716128.6615.274
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax10.110.010.29.68.35.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax10.110.010.29.68.35.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax alny:GIVLAARI country:US100.0100.0100.0100.0100.0100.0

alny:GIVLAARI, srt:Europe


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-30
Value8.026.8735.0814.5822.337
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.63.93.13.62.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.63.93.13.62.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax alny:GIVLAARI srt:Europe100.0100.0100.0100.0100.0

alny:ONPATTRO, alny:NonUSOrEurope


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value16111413118.3024.3711.618
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.56.78.710.310.88.36.12.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.56.78.710.310.88.36.12.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax alny:ONPATTRO alny:NonUSOrEurope100.0100.0100.0100.0100.0100.0100.0100.0

alny:ONPATTRO, country:US


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value5249433932373533
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax23.827.926.331.031.037.449.947.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax23.827.926.331.031.037.449.947.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax alny:ONPATTRO country:US100.0100.0100.0100.0100.0100.0100.0100.0

alny:ONPATTRO, srt:Europe


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value4440333023211510
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax20.422.920.224.222.121.321.915.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax20.422.920.224.222.121.321.915.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax alny:ONPATTRO srt:Europe100.0100.0100.0100.0100.0100.0100.0100.0

alny:OXLUMO, country:US


Revenue
Period End2021-06-302021-03-31
Value6.5121.408
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.00.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.00.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax alny:OXLUMO country:US100.0100.0

alny:OXLUMO, srt:Europe


Revenue
Period End2021-06-302021-03-31
Value9.837.737
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.54.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.54.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax alny:OXLUMO srt:Europe100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:TypeOfArrangement

us-gaap:CollaborativeArrangement


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value59415026262715236.4837.0038.9581.6092921371715
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax26.923.531.021.225.427.721.934.214.521.042.677.8100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax26.923.531.021.225.427.721.934.214.521.042.677.8100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:CollaborativeArrangement100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Revenues

us-gaap:Revenues us-gaap:CounterpartyName, us-gaap:TypeOfArrangement

us-gaap:Revenues

alny:RegeneronPharmaceuticalsIncorporation, alny:GlobalStrategicCollaboration


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value3725201313168.514
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax16.914.512.710.412.716.611.921.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax alny:RegeneronPharmaceuticalsIncorporation alny:GlobalStrategicCollaboration0.00.00.00.00.00.00.00.0

Selling General And Administrative Expense

us-gaap:SellingGeneralAndAdministrativeExpense

us-gaap:SellingGeneralAndAdministrativeExpense


Selling
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value1451461661671271261561201128910811684726747
Percentage of SellingGeneralAndAdministrativeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax65.982.7101.7133.1123.0127.4218.0171.8252.2269.1516.75632.9283.1330.8177.9278.7

Assets

us-gaap:Assets

us-gaap:Assets


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value35093255340733073374227923952541271620131574167517891923199413581434113312621312138213161386143615301628107998610321080420447462471287322318340281310340369393481
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Liabilities

us-gaap:Liabilities

us-gaap:Liabilities


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value265623292390209219749299569349594672721971681682282993113033422972831271211141221321438190125150149154160153145130142163182204223235303
Percentage of Liabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets75.771.570.263.358.540.839.936.835.323.217.311.89.48.811.422.021.726.727.122.720.59.78.88.08.08.113.38.38.811.635.733.533.433.953.445.040.942.058.158.859.960.659.863.0

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:LiabilitiesAndStockholdersEquity


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value35093255340733073374227923952541271620131574167517891923199413581434113312621312138213161386143615301628107998610321080420447462471287322318340281310340369393481
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-31
Value8539261016121513991349143816071757154613011478162017541766105811228309201014109811891264132114081496936904942954270297308311134177188197117127136145158177202
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets24.328.529.836.741.559.260.163.264.776.882.788.290.691.288.678.078.373.372.977.379.590.391.292.092.091.986.791.791.288.464.366.566.666.146.655.059.158.041.941.240.139.440.237.00.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


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-3.638-3.696-3.754-3.298-3.374-3.446-3.52-4.211-4.2820.00.00.00.0
Percentage of StockholdersEquity-0.4-0.4-0.4-0.3-0.2-0.3-0.2-0.3-0.20.00.00.00.0
Percentage of Assets-0.1-0.1-0.1-0.1-0.1-0.2-0.1-0.2-0.20.00.00.00.0
Percentage of Assets us-gaap:AccumulatedDefinedBenefitPlansAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value0.10.3470.3480.9052.3864.1820.1370.3510.401-0.061-0.421-0.6-1.015-1.641
Percentage of StockholdersEquity0.00.00.00.10.20.30.00.00.0-0.0-0.0-0.0-0.1-0.1
Percentage of Assets0.00.00.00.00.10.20.00.00.0-0.0-0.0-0.0-0.1-0.1
Percentage of Assets us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value-36.081-36.717-43.622-37.193-33.212-32.059-36.518-34.371-35.831-32.853-33.213-33.392-33.807-34.853-34.433-33.4414.369481915-0.1650.7140.7161.186
Percentage of StockholdersEquity-4.2-4.0-4.3-3.1-2.4-2.4-2.5-2.1-2.0-2.1-2.6-2.3-2.1-2.0-1.9-3.60.35.27.311.7-0.10.50.40.6
Percentage of Assets-1.0-1.1-1.3-1.1-1.0-1.4-1.5-1.4-1.3-1.6-2.1-2.0-1.9-1.8-1.7-2.60.34.54.75.4-0.10.20.10.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap: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
Value0.249-0.576-7.424-2.0080.568-0.003-0.3432.2810.8420.00.00.00.0
Percentage of StockholdersEquity0.0-0.1-0.7-0.20.0-0.0-0.00.10.00.00.00.00.0
Percentage of Assets0.0-0.0-0.2-0.10.0-0.0-0.00.10.00.00.00.00.0
Percentage of Assets us-gaap:AccumulatedTranslationAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value586357475644559255205289520150915034460141754140403740093947260925061843846624518500476452
Percentage of StockholdersEquity687.1620.5555.4460.3394.4391.9361.5316.8286.5297.5320.7280.1249.1228.5223.5283.6198.2196.9313.0466.1439.6316.3267.8224.0
Percentage of Assets167.1176.6165.7169.1163.6232.1217.2200.3185.3228.5265.1247.1225.7208.5197.9206.7180.8170.7201.2217.3184.0127.399.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value1.1861.1731.1641.1611.1561.1311.1221.1131.111.0641.0111.0091.0051.0050.9970.8590.8510.7720.6370.5250.4270.4230.4180.414
Percentage of StockholdersEquity0.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.20.40.40.30.20.2
Percentage of Assets0.00.00.00.00.00.00.00.00.00.10.10.10.10.10.00.10.10.10.20.20.20.10.10.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value-4975.219-4785.66-4585.369-4341.829-4088.538-3909.309-3727.088-3450.903-3242.368-3022.887-2840.972-2629.531-2384.249-2220.689-2147.685-1656.811-1246.703-956.63-596.235-507.01-400.996-343.347-299.832-252.242
Percentage of StockholdersEquity-583.0-516.7-451.2-357.3-292.1-289.6-259.1-214.7-184.5-195.4-218.2-177.9-147.1-126.5-121.6-180.0-98.6-102.2-220.5-378.2-339.8-217.0-168.5-124.8
Percentage of Assets-141.8-147.0-134.6-131.3-121.2-171.5-155.6-135.8-119.4-150.1-180.4-156.9-133.2-115.5-107.7-131.2-89.9-88.6-141.8-176.3-142.2-87.3-62.30.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Assets Current

us-gaap:AssetsCurrent

us-gaap:AssetsCurrent


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value27252470261425542160158417151897206313921200134215021685176499396059767174788810501105104110291090746643665674254199214240125235240208152179224250254293
Percentage of AssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets77.775.976.777.264.069.571.674.676.069.176.280.184.087.688.573.167.052.753.256.964.379.779.772.567.266.969.165.264.462.460.444.546.350.943.673.275.561.353.958.065.867.964.661.0

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashAndCashEquivalentsAtCarryingValue


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value7453794964965804675479231136724420316361396645202408171193168271231180149151306758280350531124975175486170746790744666114137191105
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets21.311.714.615.017.220.522.836.341.836.026.718.920.220.632.414.928.515.115.312.819.617.613.010.49.918.87.08.47.832.512.62.65.420.717.923.515.218.124.924.019.724.519.00.00.00.028.60.00.0

Accounts Receivable Net Current

us-gaap:AccountsReceivableNetCurrent

us-gaap:AccountsReceivableNetCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value14611010279697543483033183.36234
Percentage of AccountsReceivableNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.23.43.02.42.03.31.81.91.11.71.20.21.7

us-gaap:AccountsReceivableNetCurrent us-gaap:ProductOrService

us-gaap:Product


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value11291686059492820172213
Percentage of AccountsReceivableNetCurrent76.982.767.376.885.765.665.341.655.365.469.8
Percentage of Assets3.22.82.01.81.82.21.20.80.61.10.8
Percentage of Assets us-gaap:Product0.00.00.00.00.00.00.00.00.00.00.0

Inventory Net

us-gaap:InventoryNet

us-gaap:InventoryNet


Inventory
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value8473756677685654403224
Percentage of InventoryNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.42.32.22.02.33.02.42.11.51.61.5

Inventory Finished Goods

us-gaap:InventoryFinishedGoods

us-gaap:InventoryFinishedGoods


Inventory
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value1613127.261134.2262.6550.5790.4450.1350.097
Percentage of InventoryFinishedGoods100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.50.40.40.20.40.20.10.00.00.00.0

Prepaid Expense And Other Assets Current

us-gaap:PrepaidExpenseAndOtherAssetsCurrent

us-gaap:PrepaidExpenseAndOtherAssetsCurrent


Prepaid
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302010-12-31
Value94756274889880736581739051664030221821192227161715139.73910108.4093.914.7764.2053.5422.545.6796.9337.2524.1584.9095.0776.889
Percentage of PrepaidExpenseAndOtherAssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.72.31.82.32.64.33.42.92.44.14.75.42.93.52.02.21.51.61.71.51.62.11.21.21.00.80.91.11.00.80.91.10.90.80.91.82.22.11.51.61.51.8

Property Plant And Equipment Gross

us-gaap:PropertyPlantAndEquipmentGross

us-gaap:PropertyPlantAndEquipmentGross


Property
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value5695014002491757967575545
Percentage of PropertyPlantAndEquipmentGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets16.720.925.412.513.95.76.313.719.216.2

us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType

alny:ComputerEquipmentAndSoftware


Property
Period End2020-12-312019-12-312018-12-31
Value191413
Percentage of PropertyPlantAndEquipmentGross3.33.03.4
Percentage of Assets0.60.60.9
Percentage of Assets alny:ComputerEquipmentAndSoftware0.00.00.0

alny:LaboratoryEquipment


Property
Period End2020-12-312019-12-312018-12-31
Value482943
Percentage of PropertyPlantAndEquipmentGross8.65.910.9
Percentage of Assets1.41.22.8
Percentage of Assets alny:LaboratoryEquipment0.00.00.0

alny:ManufacturingEquipment


Property
Period End2020-12-31
Value41
Percentage of PropertyPlantAndEquipmentGross7.2
Percentage of Assets1.2
Percentage of Assets alny:ManufacturingEquipment0.0

us-gaap:Building


Property
Period End2020-12-312019-12-312018-12-31
Value2622500.0
Percentage of PropertyPlantAndEquipmentGross46.149.90.0
Percentage of Assets7.710.50.0
Percentage of Assets us-gaap:Building0.00.00.0

us-gaap:ConstructionInProgress


Property
Period End2020-12-312019-12-312018-12-31
Value2854260
Percentage of PropertyPlantAndEquipmentGross4.910.865.2
Percentage of Assets0.82.316.6
Percentage of Assets us-gaap:ConstructionInProgress0.00.00.0

us-gaap:FurnitureAndFixtures


Property
Period End2020-12-312019-12-312018-12-31
Value11107.238
Percentage of PropertyPlantAndEquipmentGross1.92.11.8
Percentage of Assets0.30.40.5
Percentage of Assets us-gaap:FurnitureAndFixtures0.00.00.0

us-gaap:LeaseholdImprovements


Property
Period End2020-12-312019-12-312018-12-31
Value14913265
Percentage of PropertyPlantAndEquipmentGross26.326.516.5
Percentage of Assets4.45.54.2
Percentage of Assets us-gaap:LeaseholdImprovements0.00.00.0

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment


Accumulated
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value104767967615146413530
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.13.25.03.44.83.74.39.812.311.0

Property Plant And Equipment Net

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:PropertyPlantAndEquipmentNet


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value47046446544443942942539637134132027222720118116114712911474553627262521211816151616181819181413141516171818
Percentage of PropertyPlantAndEquipmentNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets13.414.313.613.413.018.917.815.613.717.020.416.312.710.59.111.910.311.59.15.74.02.82.01.81.61.32.01.91.61.53.93.83.94.06.95.84.54.05.24.94.84.64.73.8

Deferred Tax Assets Liabilities Net

us-gaap:DeferredTaxAssetsLiabilitiesNet

us-gaap:DeferredTaxAssetsLiabilitiesNet


Deferred
Period End2020-12-312019-12-312018-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value6517000.03433000.0788000.000-7000.0-38000.0-91000.0
Percentage of DeferredTaxAssetsLiabilitiesNet100.0100.0100.00.00.0100.0100.0100.0
Percentage of Assets0.20.10.10.00.0-0.0-0.0-0.0

Operating Lease Right Of Use Asset

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OperatingLeaseRightOfUseAsset


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312019-01-01
Value238237241245229221221223226226230
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets6.87.37.17.46.89.79.28.88.311.20.0

Other Assets Noncurrent

us-gaap:OtherAssetsNoncurrent

us-gaap:OtherAssetsNoncurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312012-12-312011-12-31
Value344245372019189.6329.6879.0378.62316145.2154.1711.4711.4711.4711.5621.5611.4711.4711.4710.1010.839
Percentage of OtherAssetsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.01.31.31.10.60.80.80.40.40.40.51.00.80.30.20.10.10.10.10.10.10.10.10.00.3

Equity Securities Fv Ni

us-gaap:EquitySecuritiesFvNi

us-gaap:EquitySecuritiesFvNi


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-312018-09-302018-06-30
Value525644578638131.2061512
Percentage of EquitySecuritiesFvNi100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.51.71.31.72.61.70.60.10.90.7

us-gaap:EquitySecuritiesFvNi us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-312018-09-302018-06-30
Value525644574538131.2061512
Percentage of EquitySecuritiesFvNi100.0100.0100.0100.052.7100.0100.0100.0100.0100.0
Percentage of Assets1.51.71.31.71.31.70.60.10.90.7
Percentage of Assets us-gaap:FairValueInputsLevel1 us-gaap:FairValueMeasurementsRecurring0.00.00.00.00.00.00.00.00.00.0

us-gaap:EquitySecuritiesFvNi us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-312018-09-302018-06-30
Value525644578638131.2061512
Percentage of EquitySecuritiesFvNi100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.51.71.31.72.61.70.60.10.90.7
Percentage of Assets us-gaap:FairValueMeasurementsRecurring0.00.00.00.00.00.00.00.00.00.0

Accounts Payable Current

us-gaap:AccountsPayableCurrent

us-gaap:AccountsPayableCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value5345512726404939712259211113289.23923255423121716141515155.2016.1685.0375.8962.7284.5343.1054.425.0935.5194.3395.85.4867.9495.89.31212
Percentage of AccountsPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.51.41.50.80.81.82.11.52.61.13.81.30.70.71.40.71.62.24.31.80.91.31.21.01.01.01.40.50.60.51.40.61.00.71.51.61.71.32.11.82.31.62.42.6

Accrued Liabilities Current

us-gaap:AccruedLiabilitiesCurrent

us-gaap:AccruedLiabilitiesCurrent


Accrued
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value3412803552952111831971771381061129389637251433142363730281817142319151614158.4889.0861114141312121112119.961
Percentage of AccruedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets9.78.610.48.96.38.08.27.05.15.37.25.65.03.33.63.83.12.83.32.82.72.32.11.31.20.92.22.01.51.53.43.41.81.94.04.64.53.84.43.93.33.32.82.1

Contract With Customer Liability Current

us-gaap:ContractWithCustomerLiabilityCurrent

us-gaap:ContractWithCustomerLiabilityCurrent


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value981161271141078677107892.6423.4963.4449.16141
Percentage of ContractWithCustomerLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.83.63.73.53.23.83.24.23.30.10.20.20.52.1

us-gaap:ContractWithCustomerLiabilityCurrent us-gaap:CounterpartyName, us-gaap:ProductOrService, us-gaap:TypeOfArrangement

alny:RegeneronPharmaceuticalsIncorporation, alny:C5CoCoObligation, alny:GlobalStrategicCollaboration


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-31
Value217228231233236243
Percentage of ContractWithCustomerLiabilityCurrent221.6196.8181.9203.8219.4312.3
Percentage of Assets6.27.06.87.17.010.1
Percentage of Assets alny:RegeneronPharmaceuticalsIncorporation alny:C5CoCoObligation alny:GlobalStrategicCollaboration0.00.00.00.00.00.0

alny:RegeneronPharmaceuticalsIncorporation, alny:C5LicenseObligation, alny:GlobalStrategicCollaboration


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-31
Value294558656565
Percentage of ContractWithCustomerLiabilityCurrent30.138.946.157.461.284.6
Percentage of Assets0.81.41.72.01.92.7
Percentage of Assets alny:RegeneronPharmaceuticalsIncorporation alny:C5LicenseObligation alny:GlobalStrategicCollaboration0.00.00.00.00.00.0

alny:RegeneronPharmaceuticalsIncorporation, alny:ResearchServicesObligation, alny:GlobalStrategicCollaboration


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-31
Value474554646784
Percentage of ContractWithCustomerLiabilityCurrent48.338.843.255.862.4109.0
Percentage of Assets1.41.41.61.92.03.5
Percentage of Assets alny:RegeneronPharmaceuticalsIncorporation alny:ResearchServicesObligation alny:GlobalStrategicCollaboration0.00.00.00.00.00.0

us-gaap:ContractWithCustomerLiabilityCurrent us-gaap:CounterpartyName, us-gaap:TypeOfArrangement

alny:RegeneronPharmaceuticalsIncorporation, alny:GlobalStrategicCollaboration


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-31
Value294319345363368393
Percentage of ContractWithCustomerLiabilityCurrent300.0274.4271.2317.0342.9505.8
Percentage of Assets8.49.810.111.010.916.4
Percentage of Assets alny:RegeneronPharmaceuticalsIncorporation alny:GlobalStrategicCollaboration0.00.00.00.00.00.0

Liabilities Current

us-gaap:LiabilitiesCurrent

us-gaap:LiabilitiesCurrent


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value5544945854803843383523523281491791211131151441011089513181706662576680955653835354534948545766809310099102110
Percentage of LiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets15.815.217.214.511.414.914.713.912.17.411.47.36.46.07.27.47.68.410.46.25.15.04.54.04.45.08.85.85.27.812.812.311.510.516.817.017.919.628.730.329.526.925.923.0

Operating Lease Liability Current

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OperatingLeaseLiabilityCurrent


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value393836323329272829
Percentage of OperatingLeaseLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.11.21.11.01.01.31.21.11.1

Other Accrued Liabilities Current

us-gaap:OtherAccruedLiabilitiesCurrent

us-gaap:OtherAccruedLiabilitiesCurrent


Other
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312014-03-312013-12-31
Value49272310124.9653.808253.266
Percentage of OtherAccruedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.51.11.50.51.00.40.42.30.8

Long Term Debt

us-gaap:LongTermDebt

us-gaap:LongTermDebt


Long
Period End2021-06-302021-03-312020-12-31
Value433191191
Percentage of LongTermDebt100.0100.0100.0
Percentage of Assets12.35.95.6

Secured Long Term Debt

us-gaap:SecuredLongTermDebt

us-gaap:SecuredLongTermDebt


Secured
Period End2020-12-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value1910.00.030303030303030150150150150
Percentage of SecuredLongTermDebt100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets5.60.00.01.11.51.91.81.71.61.511.010.513.211.9

Other Liabilities Noncurrent

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:OtherLiabilitiesNoncurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value71603716189.1989.339.0369.5145.0724.9654.3354.1864.4584.3472.8422.8153.1843.0671.9911.7771.3731.3010.5210.690.7030.7160.7290.7421.0670.1430.194
Percentage of OtherLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.01.91.10.50.60.40.40.40.40.30.30.30.20.20.20.20.20.30.20.20.10.10.10.20.20.20.30.20.20.30.00.0

Operating Lease Liability Noncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value288288293297281275276276277
Percentage of OperatingLeaseLiabilityNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets8.28.88.69.08.312.111.510.910.2

Lessee Operating Lease Liability Payments Due Year Two

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo


Lessee
Period End2020-12-31
Value46
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearTwo100.0
Percentage of Assets1.4

Lessee Operating Lease Liability Payments Due Year Three

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree


Lessee
Period End2020-12-31
Value43
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearThree100.0
Percentage of Assets1.3

Lessee Operating Lease Liability Payments Due Year Four

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour


Lessee
Period End2020-12-31
Value42
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFour100.0
Percentage of Assets1.3

Lessee Operating Lease Liability Payments Due Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive


Lessee
Period End2020-12-31
Value41
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFive100.0
Percentage of Assets1.2

Lessee Operating Lease Liability Payments Due After Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive


Lessee
Period End2020-12-31
Value323
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive100.0
Percentage of Assets9.5

Operating Lease Liability

us-gaap:OperatingLeaseLiability

us-gaap:OperatingLeaseLiability


Operating
Period End2020-12-312019-12-312019-09-302019-06-302019-03-312019-01-01
Value329303304306299290
Percentage of OperatingLeaseLiability100.0100.0100.0100.0100.0100.0
Percentage of Assets9.712.712.011.314.90.0

Lessee Operating Lease Liability Payments Due

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue


Lessee
Period End2020-12-31
Value536
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue100.0
Percentage of Assets15.7

Lessee Operating Lease Liability Undiscounted Excess Amount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount


Lessee
Period End2020-12-31
Value206
Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount100.0
Percentage of Assets6.1

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-31
Value8539261016121513991349143816071757154613011478162017541766105811228309201014109811891264132114081496936904942954270297308311134177188197117127136145158177202
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets24.328.529.836.741.559.260.163.264.776.882.788.290.691.288.678.078.373.372.977.379.590.391.292.092.091.986.791.791.288.464.366.566.666.146.655.059.158.041.941.240.139.440.237.00.0

us-gaap:StockholdersEquity us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


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-3.638-3.696-3.754-3.298-3.374-3.446-3.52-4.211-4.2820.00.00.00.0
Percentage of StockholdersEquity-0.4-0.4-0.4-0.3-0.2-0.3-0.2-0.3-0.20.00.00.00.0
Percentage of Assets-0.1-0.1-0.1-0.1-0.1-0.2-0.1-0.2-0.20.00.00.00.0
Percentage of Assets us-gaap:AccumulatedDefinedBenefitPlansAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value0.10.3470.3480.9052.3864.1820.1370.3510.401-0.061-0.421-0.6-1.015-1.641
Percentage of StockholdersEquity0.00.00.00.10.20.30.00.00.0-0.0-0.0-0.0-0.1-0.1
Percentage of Assets0.00.00.00.00.10.20.00.00.0-0.0-0.0-0.0-0.1-0.1
Percentage of Assets us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value-36.081-36.717-43.622-37.193-33.212-32.059-36.518-34.371-35.831-32.853-33.213-33.392-33.807-34.853-34.433-33.4414.369481915-0.1650.7140.7161.186
Percentage of StockholdersEquity-4.2-4.0-4.3-3.1-2.4-2.4-2.5-2.1-2.0-2.1-2.6-2.3-2.1-2.0-1.9-3.60.35.27.311.7-0.10.50.40.6
Percentage of Assets-1.0-1.1-1.3-1.1-1.0-1.4-1.5-1.4-1.3-1.6-2.1-2.0-1.9-1.8-1.7-2.60.34.54.75.4-0.10.20.10.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap: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
Value0.249-0.576-7.424-2.0080.568-0.003-0.3432.2810.8420.00.00.00.0
Percentage of StockholdersEquity0.0-0.1-0.7-0.20.0-0.0-0.00.10.00.00.00.00.0
Percentage of Assets0.0-0.0-0.2-0.10.0-0.0-0.00.10.00.00.00.00.0
Percentage of Assets us-gaap:AccumulatedTranslationAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value586357475644559255205289520150915034460141754140403740093947260925061843846624518500476452
Percentage of StockholdersEquity687.1620.5555.4460.3394.4391.9361.5316.8286.5297.5320.7280.1249.1228.5223.5283.6198.2196.9313.0466.1439.6316.3267.8224.0
Percentage of Assets167.1176.6165.7169.1163.6232.1217.2200.3185.3228.5265.1247.1225.7208.5197.9206.7180.8170.7201.2217.3184.0127.399.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value1.1861.1731.1641.1611.1561.1311.1221.1131.111.0641.0111.0091.0051.0050.9970.8590.8510.7720.6370.5250.4270.4230.4180.414
Percentage of StockholdersEquity0.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.20.40.40.30.20.2
Percentage of Assets0.00.00.00.00.00.00.00.00.00.10.10.10.10.10.00.10.10.10.20.20.20.10.10.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value-4975.219-4785.66-4585.369-4341.829-4088.538-3909.309-3727.088-3450.903-3242.368-3022.887-2840.972-2629.531-2384.249-2220.689-2147.685-1656.811-1246.703-956.63-596.235-507.01-400.996-343.347-299.832-252.242
Percentage of StockholdersEquity-583.0-516.7-451.2-357.3-292.1-289.6-259.1-214.7-184.5-195.4-218.2-177.9-147.1-126.5-121.6-180.0-98.6-102.2-220.5-378.2-339.8-217.0-168.5-124.8
Percentage of Assets-141.8-147.0-134.6-131.3-121.2-171.5-155.6-135.8-119.4-150.1-180.4-156.9-133.2-115.5-107.7-131.2-89.9-88.6-141.8-176.3-142.2-87.3-62.30.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value1186000.01173000.01164000.01161000.01156000.01131000.01122000.01113000.01110000.01064000.01011000.01009000.01005000.01005000.0997000.0924000.0917000.0861000.0859000.0858000.0856000.0855000.0851000.0847000.0845000.0842000.0772000.0767000.0763000.0755000.0637000.0632000.0624000.0621000.0525000.0524000.0520000.0519000.0427000.0427000.0427000.0424000.0423000.0418000.0
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.10.10.10.10.10.00.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.20.10.10.10.20.20.20.20.20.10.10.10.10.1

Additional Paid In Capital Common Stock

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:AdditionalPaidInCapitalCommonStock


Additional
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value586357475644559255205289520150915034460141754140403740093947309730382627260925852565254625062483246824501843182318101776846833813806624621613609518514509504500476
Percentage of AdditionalPaidInCapitalCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets167.1176.6165.7169.1163.6232.1217.2200.3185.3228.5265.1247.1225.7208.5197.9228.0211.9231.8206.7196.9185.6193.4180.8173.0161.2150.5170.7184.9175.4164.4201.2186.3175.9170.9217.3192.8192.5179.0184.0165.8149.6136.8127.399.0

Retained Earnings Accumulated Deficit

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:RetainedEarningsAccumulatedDeficit


Retained
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value-4975.219-4785.66-4585.369-4341.829-4088.538-3909.309-3727.088-3450.903-3242.368-3022.887-2840.972-2629.531-2384.249-2220.689-2147.685-2005.458-1882.521-1764.101-1656.811-1543.877-1439.806-1349.677-1246.703-1155.982-1079.19-1007.407-956.63-935.241-891.252-847.178-596.235-563.878-534.192-516.023-507.01-444.822-425.32-412.364-400.996-386.693-373.456-359.632-343.347-299.832
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-141.8-147.0-134.6-131.3-121.2-171.5-155.6-135.8-119.4-150.1-180.4-156.9-133.2-115.5-107.7-147.6-131.3-155.6-131.2-117.6-104.2-102.5-89.9-80.5-70.5-61.9-88.6-94.8-86.3-78.4-141.8-126.0-115.5-109.4-176.3-138.0-133.5-121.2-142.2-124.7-109.6-97.4-87.3-62.3

Accumulated Other Comprehensive Income Loss Net Of Tax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value-36.081-36.717-43.622-37.193-33.212-32.059-36.518-34.371-35.831-32.853-33.213-33.392-33.807-34.853-34.433-33.741-33.959-33.828-33.441-27.778-28.296-9.0114.369-7.21918524815212519272820150.108-0.062-0.037-0.165-0.151-0.246-0.0180.7140.716
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-1.0-1.1-1.3-1.1-1.0-1.4-1.5-1.4-1.3-1.6-2.1-2.0-1.9-1.8-1.7-2.5-2.4-3.0-2.6-2.1-2.0-0.70.3-0.51.23.24.51.52.12.34.76.16.14.45.40.0-0.0-0.0-0.1-0.0-0.1-0.00.20.1

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

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue


Adjustments
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value3256403334463032882119
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Adjustments
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value3256403334463032882119
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-121.856-235.66-123.144-110.326-135.33-246.161-195.98-182.632288-188.51-150.457-153.808-102.687-155.664-103.044-98.363-22.369-21.715-23.602-0.971-68.9125.212-21.694-30.215-25.159-29.025-26.579-6.305-20.388-24.038-24.314-15.601
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-55.3-132.7-75.3-87.7-130.2-247.5-273.4-260.7645.6-566.2-715.3-7433.9-343.4-710.8-271.7-575.40.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value15771-97.888-10.088-441.23113-220.85-10.077-289.4021022489662-134.814-160.588-137.17856-2.504-53.209-130.8443177.601-65.59320362.63722474.684-26.963-7.462
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax71.240.2-59.8-8.0-424.4114.3-308.1-14.4-647.2308.31183.74648.3209.4-615.6-423.4-802.40.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value32951217346895340-20.6994123905.378125.58141706287.65113.9821780.9664.4990.628870.2670.00.4620.0090.5270.0532.5410.542
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax149.528.8133.327.1662.854.256.3-29.5922.81174.225.6627.818.7189.61864.1169.10.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

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

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value366-117.041-0.11-84.125112-79.235-376.122-213.854411305103-44.645-34.485-248.956443-206.626
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax166.0-65.9-0.1-66.8108.6-79.7-524.7-305.2921.2916.3493.9-2157.8-115.3-1136.81169.0-1208.6

Increase Decrease In Accounts Receivable

us-gaap:IncreaseDecreaseInAccountsReceivable

us-gaap:IncreaseDecreaseInAccountsReceivable


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value3510218.971-6.78332-5.47917-3.10715150.401-47.8071619
Percentage of IncreaseDecreaseInAccountsReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Inventories

us-gaap:IncreaseDecreaseInInventories

us-gaap:IncreaseDecreaseInInventories


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value3.955-1.9348.4642.78412114.316137.9067.13412
Percentage of IncreaseDecreaseInInventories100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-121.856-235.66-123.144-110.326-135.33-246.161-195.98-182.632288-188.51-150.457-153.808-102.687-155.664-103.044-98.363-22.369-21.715-23.602-0.971-68.9125.212-21.694-30.215-25.159-29.025-26.579-6.305-20.388-24.038-24.314-15.601
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-55.3-132.7-75.3-87.7-130.2-247.5-273.4-260.7645.6-566.2-715.3-7433.9-343.4-710.8-271.7-575.40.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-189.559-200.291-243.54-253.291-179.229-182.221-276.185-208.535-219.481-181.915-211.441-245.282-163.56-141.214-142.227-122.937-118.42-107.29-112.934-104.071-90.129-102.974-90.721-76.792-71.783-50.777-21.389-43.989-44.074-250.943-32.357-29.686-18.169-9.013-62.188-19.502-12.956-11.368-14.303-13.237-13.824-16.285-6.93-9.63-14.632-12.323
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-85.9-112.8-148.9-201.3-172.4-183.2-385.3-297.6-490.9-546.4-1005.3-11855.1-546.9-644.8-375.0-719.1-743.3-565.90.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Net
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value-189.559-200.291-253.291-179.229-182.221-208.535-219.481-181.915-245.282-163.56-141.214
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-85.9-112.8-201.3-172.4-183.2-297.6-490.9-546.4-11855.1-546.9-644.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.0

Share Based Compensation

us-gaap:ShareBasedCompensation

us-gaap:ShareBasedCompensation


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value325534373334664630322787221927252415201515231511108.236136.3527.685.5915.4068.8453.3773.0752.7223.3863.0963.1564.0824.2584.2144.1224.2124.5115.0685.327
Percentage of ShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value15771-97.888-10.088-441.23113-220.85-10.077-289.4021022489662-134.814-160.588-137.17856-2.504-53.209-130.8443177.601-65.59320362.63722474.684-26.963-7.462
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax71.240.2-59.8-8.0-424.4114.3-308.1-14.4-647.2308.31183.74648.3209.4-615.6-423.4-802.40.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Payments To Acquire Property Plant And Equipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1117211216193836214437452221202521361920212.7593.0996.4771.2642.113.5263.1951.8520.3880.8780.950.3791.7990.6865.7291.670.2630.5240.2650.4740.0281.1381.0671.431.097
Percentage of PaymentsToAcquirePropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value32951217346895340-20.6994123905.378125.58141706287.65113.9821780.9664.4990.628870.2670.00.4620.0090.5270.0532.5410.542
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax149.528.8133.327.1662.854.256.3-29.5922.81174.225.6627.818.7189.61864.1169.10.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

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

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber

alny:PerformanceBasedStockOptions


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value1.6252.1912.7442.1382.3571.6420.6390.468
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber100.0100.0100.0100.0100.0100.0100.0100.0

alny:TimeBasedStockOptions


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value10109.8299.1019.9138.3187.53
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber619.6496.5358.2425.7420.6506.61178.4

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

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

alny:PerformanceBasedStockOptions


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value91.3586.7784.7569.1469.6184.9273.1563.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice100.0100.0100.0100.0100.0100.0100.0100.0

alny:TimeBasedStockOptions


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value88.1876.9272.4860.1856.0554.0533.46
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice96.588.685.587.080.563.645.7

Deferred Tax Assets Valuation Allowance

us-gaap:DeferredTaxAssetsValuationAllowance

us-gaap:DeferredTaxAssetsValuationAllowance


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value13491046860688575397268222192154
Percentage of DeferredTaxAssetsValuationAllowance100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

alny:AmortizationAndInterestAccretionRelatedToOperatingLeases

alny:AmortizationAndInterestAccretionRelatedToOperatingLeases


Amortization
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value101010109.5789.3939.329.2898.32910
Percentage of AmortizationAndInterestAccretionRelatedToOperatingLeases100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

alny:CollaborativeArrangementMaximumMilestonePayments us-gaap:SubsequentEventType, us-gaap:TypeOfArrangement

alny:CollaborativeArrangementMaximumMilestonePayments

us-gaap:SubsequentEvent, alny:PeptiDreamInc


Collaborative
Period End2021-07-31
Value247
Percentage of CollaborativeArrangementMaximumMilestonePayments100.0

alny:CollaborativeArrangementRoyaltiesPayablePercent us-gaap:CounterpartyName, us-gaap:ProductOrService, us-gaap:TypeOfArrangement

alny:CollaborativeArrangementRoyaltiesPayablePercent

alny:BlackstoneLifeSciences, alny:Vutrisiran, us-gaap:CollaborativeArrangement


Collaborative
Period End2020-08-152020-08-31
Value10.01.0
Percentage of CollaborativeArrangementRoyaltiesPayablePercent100.0100.0

alny:CollaborativeArrangementUpfrontPayment us-gaap:SubsequentEventType, us-gaap:TypeOfArrangement

alny:CollaborativeArrangementUpfrontPayment

us-gaap:SubsequentEvent, alny:PeptiDreamInc


Collaborative
Period End2021-07-31
Value10000000.0
Percentage of CollaborativeArrangementUpfrontPayment100.0

alny:CostOfCollaborationManufacturingAndRoyalties

alny:CostOfCollaborationManufacturingAndRoyalties


Cost
Period End2021-06-302021-03-312020-06-30
Value8.4998.0391.664
Percentage of CostOfCollaborationManufacturingAndRoyalties100.0100.0100.0

alny:IncreaseDecreaseInResearchAndDevelopmentExpense

alny:IncreaseDecreaseInResearchAndDevelopmentExpense


Increase
Period End2021-06-302020-06-30
Value-4000000.0-700000.0
Percentage of IncreaseDecreaseInResearchAndDevelopmentExpense100.0100.0

alny:MilestonePaymentEarned alny:ResearchCollaborator, us-gaap:TypeOfArrangement

alny:MilestonePaymentEarned

alny:Novartis, alny:ProductAlliances


Milestone
Period End2021-06-30
Value0.0
Percentage of MilestonePaymentEarned0.0

alny:NonCashInterestExpenseOnSaleOfFutureRoyalties

alny:NonCashInterestExpenseOnSaleOfFutureRoyalties


Non
Period End2021-06-302021-03-312020-12-312020-09-30
Value28282828
Percentage of NonCashInterestExpenseOnSaleOfFutureRoyalties100.0100.0100.0100.0

alny:PaymentsForTransactionCostsRelatedToSaleOfFutureRoyaltiesAndDebt

alny:PaymentsForTransactionCostsRelatedToSaleOfFutureRoyaltiesAndDebt


Payments
Period End2020-12-312020-09-30
Value5.2750.0
Percentage of PaymentsForTransactionCostsRelatedToSaleOfFutureRoyaltiesAndDebt100.00.0

alny:RoyaltyLiabilityInterestExpenseIncludingAmortizationOfClosingCosts us-gaap:CounterpartyName, us-gaap:TypeOfArrangement

alny:RoyaltyLiabilityInterestExpenseIncludingAmortizationOfClosingCosts

alny:BlackstoneGroupInc, us-gaap:CollaborativeArrangement


Royalty
Period End2021-06-302021-03-312020-12-312020-09-302020-06-30
Value2828282827
Percentage of RoyaltyLiabilityInterestExpenseIncludingAmortizationOfClosingCosts100.0100.0100.0100.0100.0

alny:TransactionPrice us-gaap:CounterpartyName

alny:TransactionPrice

alny:VirBiotechnologyInc


Transaction
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value11011011014538105
Percentage of TransactionPrice100.0100.0100.0100.0100.0100.0

alny:TransactionPrice us-gaap:CounterpartyName, us-gaap:ProductOrService, us-gaap:TypeOfArrangement

alny:RegeneronPharmaceuticalsIncorporation, alny:C5CoCoObligation, alny:GlobalStrategicCollaboration


Transaction
Period End2021-06-302021-03-312020-09-302020-06-302019-12-312019-04-08
Value0.02460.0246246246
Percentage of TransactionPrice0.0223.40.0640.60.00.0

alny:RegeneronPharmaceuticalsIncorporation, alny:C5LicenseObligation, alny:GlobalStrategicCollaboration


Transaction
Period End2021-06-302021-03-312020-09-302020-06-302019-12-312019-04-08
Value0.0920.01088592
Percentage of TransactionPrice0.084.00.0282.60.00.0

alny:RegeneronPharmaceuticalsIncorporation, alny:ResearchServicesObligation, alny:GlobalStrategicCollaboration


Transaction
Period End2021-06-302021-03-312020-09-302020-06-302019-12-312019-04-08
Value0.01830.0200200183
Percentage of TransactionPrice0.0166.30.0522.40.00.0

alny:TransactionPrice us-gaap:CounterpartyName, us-gaap:TypeOfArrangement

alny:RegeneronPharmaceuticalsIncorporation, alny:GlobalStrategicCollaboration


Transaction
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-312019-04-08
Value0.05215310.0555531521
Percentage of TransactionPrice0.0473.8483.00.01445.60.00.0

us-gaap:CapitalExpendituresIncurredButNotYetPaid

us-gaap:CapitalExpendituresIncurredButNotYetPaid


Capital
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value4.5077.2897.470.646-0.2176.619-4.047-6.97121313-3.5491210
Percentage of CapitalExpendituresIncurredButNotYetPaid100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerLiabilityRevenueRecognized

us-gaap:ContractWithCustomerLiabilityRevenueRecognized


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value29253.6841916140.0121.0910.9281.6172.9576.1135.883
Percentage of ContractWithCustomerLiabilityRevenueRecognized100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DepreciationAmortizationAndAccretionNet

us-gaap:DepreciationAmortizationAndAccretionNet


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value1112108.5738.27.6135.442-10.2229.74512-2.2283.2462.2393.1783.7143.587
Percentage of DepreciationAmortizationAndAccretionNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DerivativeGainLossOnDerivativeNet us-gaap:IncomeStatementLocation

us-gaap:DerivativeGainLossOnDerivativeNet

us-gaap:OtherExpense


Derivative
Period End2020-12-312020-09-30
Value-16000000.0-1200000.0
Percentage of DerivativeGainLossOnDerivativeNet100.0100.0

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
Value1081000.0-3910000.02972000.02142000.0435000.0-631000.0366000.0-446000.0-3000.000
Percentage of EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0

us-gaap:EquitySecuritiesFvNiGainLoss

us-gaap:EquitySecuritiesFvNiGainLoss


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value-4.43447-12.584-3.0174524
Percentage of EquitySecuritiesFvNiGainLoss100.0100.0100.0100.0100.0100.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings us-gaap:FinancialInstrument

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings

us-gaap:Derivative


Fair
Period End2021-06-302021-03-312020-12-312020-09-30
Value-4590000.0-18253000.0-15955000.0-1230000.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value68-66.573687316-14.215341367-24.332
Percentage of IncreaseDecreaseInAccountsPayableAndAccruedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInContractWithCustomerLiability

us-gaap:IncreaseDecreaseInContractWithCustomerLiability


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value-23.938-27.804-28.041-8.834-3.06-4.03-7.3330.411400-0.834-1.113-8.616-29.848267.892
Percentage of IncreaseDecreaseInContractWithCustomerLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets

us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1613-11.465-17.325-6.398198.3818-14.2819.4180.94212-6.27927181.8543.906-3.7082.463-2.783.5832.01-0.6062.3361.9113.179-0.960.4291.8614.499-0.8660.5720.7060.944-3.139-1.254-0.3192.932-0.751-0.1680.158-1.970.4570.4110.9120.958
Percentage of IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InvestmentIncomeInterest

us-gaap:InvestmentIncomeInterest


Investment
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.4090.451.0922.0723.1655.487.2539.8898.7810.2240.2220.2610.2710.2230.2360.2650.3220.3820.4720.6020.6410.59
Percentage of InvestmentIncomeInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:LineOfCreditFacilityCommitmentFeeAmount

us-gaap:LineOfCredit, alny:TrancheOneLoan, us-gaap:SecuredDebt


Line
Period End2021-06-30
Value5000000.0
Percentage of LineOfCreditFacilityCommitmentFeeAmount100.0

us-gaap:LineOfCredit, alny:TrancheTwoLoan, us-gaap:SecuredDebt


Line
Period End2021-06-30
Value6300000.0
Percentage of LineOfCreditFacilityCommitmentFeeAmount126.0

us-gaap:LineOfCreditFacilityCommitmentFeeAmount us-gaap:CreditFacility, us-gaap:LongtermDebtType

us-gaap:LineOfCredit, us-gaap:SecuredDebt


Line
Period End2020-12-31
Value5000000.0
Percentage of LineOfCreditFacilityCommitmentFeeAmount0.0

us-gaap:LitigationSettlementAmountAwardedToOtherParty us-gaap:LitigationCase

us-gaap:LitigationSettlementAmountAwardedToOtherParty

alny:Ionis


Litigation
Period End2020-12-31
Value41
Percentage of LitigationSettlementAmountAwardedToOtherParty100.0

us-gaap:LossContingencyAccrualCarryingValuePeriodIncreaseDecrease us-gaap:LitigationCase

us-gaap:LossContingencyAccrualCarryingValuePeriodIncreaseDecrease

alny:IonisPharmaceuticalsInc


Loss
Period End2020-09-30
Value28
Percentage of LossContingencyAccrualCarryingValuePeriodIncreaseDecrease100.0

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
Value109.066.728139.1999.0368.9648.9768.0617.702
Percentage of OperatingLeasePayments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax

us-gaap:OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax


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
Value825000.06848000.0-5416000.0-2576000.0571000.0340000.0-2624000.01439000.0842000.0000
Percentage of OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax


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
Value827000.06847000.0-5968000.0-4707000.01392000.01657000.0-2340000.01320000.0-3308000.0346000.0179000.0-659000.0
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


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
Value2000.0-1000.0-21000.0-2131000.0821000.01317000.0-337000.0-119000.0132000.0346000.0179000.0-659000.0
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax0.2-0.00.445.359.079.514.4-9.0-4.0100.0100.0100.0

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
Value825000.06848000.0-5416000.0-2576000.0571000.0340000.0-2624000.01439000.0842000.000
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax99.8100.090.854.741.020.5112.1109.0-25.50.00.0

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeReclassificationAdjustmentsNetOfTax

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeReclassificationAdjustmentsNetOfTax


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-58000.0-58000.0456000.0-76000.0-72000.0-74000.0-691000.0-71000.04282000.0000
Percentage of OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeReclassificationAdjustmentsNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax

us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-0.247-0.001-0.557-1.481-1.7964.045-0.214-0.050.4620.360.1790.4151.046-0.42-0.6920.218-0.476-1.936-5.5021.224-18.331-8.22411-25.981-33.6233.62235-6.23-3.0475.313-7.451-0.9627.3095.159150.17-0.0250.128-0.0140.095-0.228-0.732-0.5740.0020.4920.107
Percentage of OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherOperatingActivitiesCashFlowStatement

us-gaap:OtherOperatingActivitiesCashFlowStatement


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
Value1.575309.631-2.7443.7120.661.224-2.491-0.849-1.075-3.491
Percentage of OtherOperatingActivitiesCashFlowStatement100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsForProceedsFromOtherInvestingActivities

us-gaap:PaymentsForProceedsFromOtherInvestingActivities


Payments
Period End2021-06-302021-03-312020-12-312020-09-30
Value04198000.05000000.00
Percentage of PaymentsForProceedsFromOtherInvestingActivities0.0100.0100.00.0

us-gaap:PaymentsForProceedsFromTenantAllowance

us-gaap:PaymentsForProceedsFromTenantAllowance


Payments
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302013-12-312012-12-31
Value-2.86-0.699-1.9910.0-1.106-10.364-6.314-12.386-13.753-7.117-0.012-0.566
Percentage of PaymentsForProceedsFromTenantAllowance100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsToAcquireAvailableForSaleSecuritiesDebt

us-gaap:PaymentsToAcquireAvailableForSaleSecuritiesDebt


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value168345556329744396630611577256111349284358391274150861432571931641358031050712584280487296087187
Percentage of PaymentsToAcquireAvailableForSaleSecuritiesDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap: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
Value0.16510160.00.09.90.00.00.00.00.0
Percentage of PaymentsToAcquireRestrictedInvestments100.0100.0100.00.00.0100.00.00.00.00.00.0

us-gaap:ProceedsFromIssuanceOfPrivatePlacement

us-gaap:ProceedsFromIssuanceOfPrivatePlacement


Proceeds
Period End2020-12-312020-09-302019-12-312019-09-302017-12-312017-09-302016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value0.00.00.00.00.00.00.00.00.0140.00.00.0890.00.00.0723
Percentage of ProceedsFromIssuanceOfPrivatePlacement0.00.00.00.00.00.00.00.00.0100.00.00.00.0100.00.00.00.0100.0

us-gaap:ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions

us-gaap:ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value814619299753409.217129.0837.671135.6414242289.8752.7693.4374.4244.4421.8246.5433.8317.197137.6855.0565.138118.924113.9824.6380.9974.4990.6280.8470.2670.00.4620.0090.5270.0531.5480.542
Percentage of ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromLinesOfCredit us-gaap:CreditFacility, us-gaap:LongtermDebtType

us-gaap:ProceedsFromLinesOfCredit

us-gaap:LineOfCredit, us-gaap:SecuredDebt


Proceeds
Period End2021-06-302020-12-31
Value250200
Percentage of ProceedsFromLinesOfCredit100.0100.0

us-gaap:ProceedsFromSaleAndMaturityOfMarketableSecurities

us-gaap:ProceedsFromSaleAndMaturityOfMarketableSecurities


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value337438500331319539455607309403398491384244131163
Percentage of ProceedsFromSaleAndMaturityOfMarketableSecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromSaleOfRestrictedInvestments

us-gaap:ProceedsFromSaleOfRestrictedInvestments


Proceeds
Period End2021-06-302021-03-312019-12-312018-12-31
Value0.0100.00.0
Percentage of ProceedsFromSaleOfRestrictedInvestments0.0100.00.00.0

us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax

us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax


Reclassification
Period 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
Value191000.0-58000.0461000.0-726000.02545000.0-2802000.0-193000.0-828000.0358000.0-14000.00-2188000.0
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0

us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


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-58000.0-58000.0-75000.0-76000.0-72000.0-74000.0-70000.0-71000.0000
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax-30.4100.0-16.310.5-2.82.636.38.60.0-0.00.0

us-gaap:AccumulatedNetUnrealizedInvestmentGainLoss


Reclassification
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value536000.0-650000.02617000.0-2728000.0-123000.0-757000.0358000.0-14000.00-2188000.0
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax116.389.5102.897.463.791.4100.0100.00.0100.0

us-gaap:RevenueFromCollaborativeArrangementExcludingRevenueFromContractWithCustomer us-gaap:CounterpartyName, us-gaap:ProductOrService, us-gaap:TypeOfArrangement

us-gaap:RevenueFromCollaborativeArrangementExcludingRevenueFromContractWithCustomer

alny:RegeneronPharmaceuticalsIncorporation, alny:C5CoCoObligation, alny:GlobalStrategicCollaboration


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value112.52.22.42.94.2-0.73.6
Percentage of RevenueFromCollaborativeArrangementExcludingRevenueFromContractWithCustomer100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability


Right
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value0.07219122.9391.9840.8181.7280.0
Percentage of RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:SaleOfStockConsiderationReceivedOnTransaction us-gaap:CounterpartyName, us-gaap:SubsidiarySaleOfStock

us-gaap:SaleOfStockConsiderationReceivedOnTransaction

alny:BlackstoneGroupInc, us-gaap:PrivatePlacement


Sale
Period End2021-04-30
Value100
Percentage of SaleOfStockConsiderationReceivedOnTransaction100.0

us-gaap:StockIssuedDuringPeriodSharesShareBasedCompensationGross us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodSharesShareBasedCompensationGross

us-gaap:CommonStock


Stock
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value282000.0280000.02000.0283000.04000.06000.055000.04000.0130000.041000.02000.0
Percentage of StockIssuedDuringPeriodSharesShareBasedCompensationGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised

us-gaap:CommonStock


Stock
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value993000.0614000.0494000.01233000.0976000.0191000.0203000.0207000.0261000.053000.0795000.0
Percentage of StockIssuedDuringPeriodSharesStockOptionsExercised100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensationGross

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensationGross


Stock
Period End2021-06-302020-09-302020-06-302020-03-312019-06-302019-03-312018-09-302018-06-302018-03-31
Value7.7180.1295.3010.04.022-0.058-0.5453.124-0.123
Percentage of StockIssuedDuringPeriodValueShareBasedCompensationGross100.0100.0100.00.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensationGross us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stock
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-06-302019-03-312018-09-302018-06-302018-03-31
Value7.715-0.0030.1295.2980.04.022-0.058-0.5463.124-0.123
Percentage of StockIssuedDuringPeriodValueShareBasedCompensationGross100.00.0100.099.90.0100.0100.0100.2100.0100.0

us-gaap:CommonStock


Stock
Period End2021-06-302021-03-312020-06-302018-09-30
Value0.0030.0030.0030.001
Percentage of StockIssuedDuringPeriodValueShareBasedCompensationGross0.00.00.1-0.2

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised


Stock
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value75473291549.36.18211132.56141
Percentage of StockIssuedDuringPeriodValueStockOptionsExercised100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stock
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value75473291549.2986.1811132.56141
Percentage of StockIssuedDuringPeriodValueStockOptionsExercised100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CommonStock


Stock
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-31
Value0.010.0060.0050.0120.0090.0020.0020.0030.0030.00.008
Percentage of StockIssuedDuringPeriodValueStockOptionsExercised0.00.00.00.00.00.00.00.00.00.00.0

alny:AccruedLicensingAndCollaborationAgreements

alny:AccruedLicensingAndCollaborationAgreements


Accrued
Period End2020-12-312019-12-312018-12-31
Value15206.433
Percentage of AccruedLicensingAndCollaborationAgreements100.0100.0100.0

alny:AccruedPreClinicalClinicalTrialAndManufacturingCurrent

alny:AccruedPreClinicalClinicalTrialAndManufacturingCurrent


Accrued
Period End2020-12-312019-12-312018-12-31
Value463432
Percentage of AccruedPreClinicalClinicalTrialAndManufacturingCurrent100.0100.0100.0

alny:AccruedProductRebatesAndDiscounts

alny:AccruedProductRebatesAndDiscounts


Accrued
Period End2020-12-312019-12-31
Value9432
Percentage of AccruedProductRebatesAndDiscounts100.0100.0

alny:CapitalizedInventory

alny:CapitalizedInventory


Capitalized
Period End2021-06-302020-09-302020-06-302019-12-31
Value7.119110.0
Percentage of CapitalizedInventory100.0100.0100.00.0

alny:CollaborativeArrangementRoyaltiesAndCommercialMilestonesAcquiredByCollaboratorPercent us-gaap:CounterpartyName, us-gaap:StatementScenario, us-gaap:TypeOfArrangement

alny:CollaborativeArrangementRoyaltiesAndCommercialMilestonesAcquiredByCollaboratorPercent

alny:BlackstoneGroupInc, srt:ScenarioForecast, us-gaap:CollaborativeArrangement


Collaborative
Period End2030-01-01
Value0.55
Percentage of CollaborativeArrangementRoyaltiesAndCommercialMilestonesAcquiredByCollaboratorPercent100.0

alny:DeferredTaxAssetsLeasingArrangement

alny:DeferredTaxAssetsLeasingArrangement


Deferred
Period End2020-12-312019-12-312018-12-31
Value70690.0
Percentage of DeferredTaxAssetsLeasingArrangement100.0100.00.0

alny:DeferredTaxAssetsSaleOfFutureRoyalties

alny:DeferredTaxAssetsSaleOfFutureRoyalties


Deferred
Period End2020-12-31
Value259
Percentage of DeferredTaxAssetsSaleOfFutureRoyalties100.0

alny:DeferredTaxLiabilitiesChangeInAccountingMethodAdjustment

alny:DeferredTaxLiabilitiesChangeInAccountingMethodAdjustment


Deferred
Period End2020-12-31
Value71
Percentage of DeferredTaxLiabilitiesChangeInAccountingMethodAdjustment100.0

alny:InventoryCurrentAndNoncurrent

alny:InventoryCurrentAndNoncurrent


Inventory
Period End2021-06-302021-03-312020-12-312020-09-302019-12-31
Value9691928456
Percentage of InventoryCurrentAndNoncurrent100.0100.0100.0100.0100.0

alny:OperatingLossCarryforwardsNotSubjectToExpiration us-gaap:IncomeTaxAuthority

alny:OperatingLossCarryforwardsNotSubjectToExpiration

alny:Federal


Operating
Period End2020-12-31
Value900
Percentage of OperatingLossCarryforwardsNotSubjectToExpiration100.0

alny:OperatingLossCarryforwardsSubjectToExpiration us-gaap:IncomeTaxAuthority

alny:OperatingLossCarryforwardsSubjectToExpiration

alny:Federal


Operating
Period End2020-12-31
Value1100
Percentage of OperatingLossCarryforwardsSubjectToExpiration100.0

alny:RoyaltyLiabilityCurrent

alny:RoyaltyLiabilityCurrent


Royalty
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-31
Value221313105.9570.0
Percentage of RoyaltyLiabilityCurrent100.0100.0100.0100.0100.00.0

alny:RoyaltyLiabilityNoncurrent

alny:RoyaltyLiabilityNoncurrent


Royalty
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302019-12-31
Value110510861058103210080.0
Percentage of RoyaltyLiabilityNoncurrent100.0100.0100.0100.0100.00.0

alny:RoyaltyLiabilityNoncurrent us-gaap:CounterpartyName, us-gaap:TypeOfArrangement

alny:BlackstoneGroupInc, us-gaap:CollaborativeArrangement


Royalty
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-04-302020-04-10
Value1130110010701040101010001000
Percentage of RoyaltyLiabilityNoncurrent102.2101.3101.1100.7100.20.00.0

alny:ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPercentageOnFirstAnniversary us-gaap:AwardType

alny:ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPercentageOnFirstAnniversary

alny:TimeBasedStockOptions


Share
Period End2020-12-312019-12-31
Value25.00.25
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPercentageOnFirstAnniversary100.0100.0

alny:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestingPercentageInEachQuarter us-gaap:AwardType

alny:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestingPercentageInEachQuarter

alny:TimeBasedStockOptions


Share
Period End2020-12-312019-12-31
Value6.250.0625
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestingPercentageInEachQuarter100.0100.0

us-gaap:AccountsReceivableNet

us-gaap:AccountsReceivableNet


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value331933189.86525142813115.625
Percentage of AccountsReceivableNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccruedProfessionalFeesCurrent

us-gaap:AccruedProfessionalFeesCurrent


Accrued
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value1114107.2762.7880.8923.8862.135
Percentage of AccruedProfessionalFeesCurrent100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:AssetsFairValueDisclosure

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-31
Value293235121353472294135135959910524832123312492374921611542702292011531864011501091073977810166350684167
Percentage of AssetsFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-31
Value1101127313531294130997213151471158910498849191084120314538587016467668878599811118119112451144806832887651297413420384213225247190
Percentage of AssetsFairValueDisclosure375.9539.61110.6366.4276.9330.7971.81082.91656.01052.8841.0370.1337.8515.61167.9928.1187.0695.5473.1575.0317.9428.2555.3776.3667.7284.6535.0757.3826.5163.9381.03930.62482.0604.3425.3327.6595.3284.3

us-gaap:AssetsFairValueDisclosure us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-31
Value13941508147516481781126714501607168511499891168140514361577950107673992810421129121013201345143215469579429941049375423437447263294289257
Percentage of AssetsFairValueDisclosure475.9639.61210.6466.4376.9430.71071.81182.91756.01152.8941.0470.1437.8615.61267.91028.1287.0795.5573.1675.0417.9528.2655.3876.3767.7384.6635.0857.3926.5263.9481.04030.62582.0704.3525.3427.6695.3384.3

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value199000.0422000.0463000.01205000.02512000.04516000.0246000.0395000.0419000.026000.01000.012000.07000.012000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax us-gaap:FinancialInstrument

us-gaap:CorporateDebtSecurities


Available
Period End2021-06-302020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value6000.023000.0175000.09000.058000.076000.045000.01000.0011000.07000.011000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax3.01.97.00.223.619.210.73.80.091.7100.091.7

us-gaap:USGovernmentSponsoredEnterprisesDebtSecurities


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-31
Value47000.087000.0135000.0171000.0197000.0275000.03000.021000.034000.00
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax23.620.629.214.27.86.11.25.38.10.0

us-gaap:USTreasurySecurities


Available
Period 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
Value146000.0335000.0328000.01011000.02140000.04232000.0185000.0298000.0340000.025000.01000.01000.01000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax73.479.470.883.985.293.775.275.481.196.2100.08.38.3

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value99000.075000.0115000.0300000.0126000.0334000.0109000.044000.018000.087000.0422000.0612000.01022000.01653000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax us-gaap:FinancialInstrument

us-gaap:CorporateDebtSecurities


Available
Period End2021-06-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value40000.02000.0321000.034000.019000.010000.029000.0285000.0247000.0480000.0495000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax40.41.696.131.243.255.633.367.540.447.029.9

us-gaap:USGovernmentSponsoredEnterprisesDebtSecurities


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302018-12-312018-09-302018-06-302017-12-31
Value29000.058000.034000.0241000.033000.06000.02000.010000.03000.013000.088000.0335000.0983000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax29.377.329.680.326.21.81.822.716.73.114.432.859.5

us-gaap:USTreasurySecurities


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value30000.017000.081000.059000.091000.0071000.015000.05000.058000.0124000.0274000.0207000.0175000.0
Percentage of AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax30.322.770.419.772.20.065.134.127.866.729.444.820.310.6

us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis

us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302012-12-31
Value1101127213521294126696813151471158810496639051075117410607986906427508708589771102118812461144807833875650297355355174
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis us-gaap:FinancialInstrument

us-gaap:CommercialPaper


Available
Period End2021-06-30
Value36
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis3.3

us-gaap:CorporateDebtSecurities


Available
Period End2021-06-302020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value7532621141468986113232324356373
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis6.92.54.911.811.16.15.410.835.135.833.235.2

us-gaap:MunicipalNotes


Available
Period End2021-06-30
Value1.036
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis0.1

us-gaap:USGovernmentSponsoredEnterprisesDebtSecurities


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value14421524525324310532591742.49639111262399
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis13.116.918.119.619.310.82.54.111.00.25.912.324.437.6

us-gaap:USTreasurySecurities


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value843105711071008947722109212891300896325349277200
Percentage of AvailableForSaleDebtSecuritiesAmortizedCostBasis76.683.181.978.074.974.583.187.681.885.449.138.625.818.9

us-gaap:AvailableForSaleSecuritiesDebtSecurities

us-gaap:AvailableForSaleSecuritiesDebtSecurities


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302012-12-31
Value1101127313531294126897213151471158910496629051074117210597976896417488708599771100118712451144806832875649297355354174
Percentage of AvailableForSaleSecuritiesDebtSecurities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

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


Available
Period End2021-06-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value3611213612193457101145965648629259641831383547434011
Percentage of AvailableForSaleSecuritiesDebtSecurities3.30.92.22.80.91.23.38.611.213.58.25.46.09.114.57.97.52.13.23.53.03.83.85.14.0

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


Available
Period End2021-06-302020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value75326211414687861132323243564013733392692103334175557039049941032947662228
Percentage of AvailableForSaleSecuritiesDebtSecurities6.92.54.911.711.16.05.410.835.135.833.234.235.242.639.032.844.647.964.772.082.383.882.982.882.176.8

us-gaap:MunicipalNotes, us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring


Available
Period End2021-06-30
Value1.036
Percentage of AvailableForSaleSecuritiesDebtSecurities0.1

us-gaap:USGovernmentSponsoredEnterprisesDebtSecurities, us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value1442152452522441053259702.49639111261378398330304281297308239146617784896456
Percentage of AvailableForSaleSecuritiesDebtSecurities13.116.918.119.519.210.82.54.14.40.25.912.324.432.337.641.444.243.939.835.427.915.05.66.56.87.88.019.1

us-gaap:USTreasurySecurities, us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value8441057108799493958975563460836632534927726220063393940593981766565505.248
Percentage of AvailableForSaleSecuritiesDebtSecurities76.683.180.476.874.160.657.543.138.334.949.138.625.822.418.97.95.86.25.36.84.68.36.95.55.34.40.7

us-gaap:AvailableForSaleSecuritiesDebtSecurities us-gaap:FairValueByAssetClass, us-gaap:FairValueByMeasurementFrequency

us-gaap:CommercialPaper, us-gaap:FairValueMeasurementsRecurring


Available
Period End2021-06-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value3611213612193457101145965648629259641831383547434011
Percentage of AvailableForSaleSecuritiesDebtSecurities3.30.92.22.80.91.23.38.611.213.58.25.46.09.114.57.97.52.13.23.53.03.83.85.14.0

us-gaap:CorporateDebtSecurities, us-gaap:FairValueMeasurementsRecurring


Available
Period End2021-06-302020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value75326211414687861132323243564013733392692103334175557039049941032947662228
Percentage of AvailableForSaleSecuritiesDebtSecurities6.92.54.911.711.16.05.410.835.135.833.234.235.242.639.032.844.647.964.772.082.383.882.982.882.176.8

us-gaap:MunicipalNotes, us-gaap:FairValueMeasurementsRecurring


Available
Period End2021-06-30
Value1.036
Percentage of AvailableForSaleSecuritiesDebtSecurities0.1

us-gaap:USGovernmentSponsoredEnterprisesDebtSecurities, us-gaap:FairValueMeasurementsRecurring


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value1442152452522441053259702.49639111261378398330304281297308239146617784896456
Percentage of AvailableForSaleSecuritiesDebtSecurities13.116.918.119.519.210.82.54.14.40.25.912.324.432.337.641.444.243.939.835.427.915.05.66.56.87.88.019.1

us-gaap:USTreasurySecurities, us-gaap:FairValueMeasurementsRecurring


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value8441057108799493958975563460836632534927726220063393940593981766565505.248
Percentage of AvailableForSaleSecuritiesDebtSecurities76.683.180.476.874.160.657.543.138.334.949.138.625.822.418.97.95.86.25.36.84.68.36.95.55.34.40.7

us-gaap:AvailableForSaleSecuritiesDebtSecurities us-gaap:FinancialInstrument

us-gaap:CommercialPaper


Available
Period End2021-06-30
Value144
Percentage of AvailableForSaleSecuritiesDebtSecurities13.1

us-gaap:CorporateDebtSecurities


Available
Period End2021-06-302020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value7532621141469086113232324356373
Percentage of AvailableForSaleSecuritiesDebtSecurities6.92.54.911.711.16.15.410.835.135.833.235.2

us-gaap:MunicipalNotes


Available
Period End2021-06-30
Value1.036
Percentage of AvailableForSaleSecuritiesDebtSecurities0.1

us-gaap:USGovernmentSponsoredEnterprisesDebtSecurities


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value84421524525224410532591742.49639111261398
Percentage of AvailableForSaleSecuritiesDebtSecurities76.616.918.119.519.210.82.54.111.00.25.912.324.437.6

us-gaap:USTreasurySecurities


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value36105711071009949726109212891300896325349277200
Percentage of AvailableForSaleSecuritiesDebtSecurities3.383.181.978.074.974.783.187.681.885.449.138.625.818.9

us-gaap:AvailableForSaleSecuritiesDebtSecuritiesCurrent

us-gaap:AvailableForSaleSecuritiesDebtSecuritiesCurrent


Available
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value11011273133312791258836975797790519662905107411711045746514385424531571748848828788660526507524314192181184138711521801377698150154158143
Percentage of AvailableForSaleSecuritiesDebtSecuritiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CashAndCashEquivalentsFairValueDisclosure

us-gaap:CashAndCashEquivalentsFairValueDisclosure


Cash
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value20159.999136340674798530221
Percentage of CashAndCashEquivalentsFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

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


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value239177752944252541191349498102232307231122913738815113925519314811456
Percentage of CashAndCashEquivalentsFairValueDisclosure0.00.0378.61965.14258.1186.635.219.911.818.546.30.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:USTreasurySecurities, us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring


Cash
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-03-312017-12-31
Value20159.9991363366556925302219.9745.49162
Percentage of CashAndCashEquivalentsFairValueDisclosure100.0100.0100.0100.099.097.286.7100.0100.00.00.00.0

us-gaap:CashAndCashEquivalentsFairValueDisclosure us-gaap:FairValueByAssetClass, us-gaap:FairValueByMeasurementFrequency

us-gaap:MoneyMarketFunds, us-gaap:FairValueMeasurementsRecurring


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302014-12-31
Value239177752944252541191349498102232307231122913738815113925519314811456
Percentage of CashAndCashEquivalentsFairValueDisclosure0.00.0378.61965.14258.1186.635.219.911.818.546.30.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:USTreasurySecurities, us-gaap:FairValueMeasurementsRecurring


Cash
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-03-312017-12-31
Value20159.9991363366556925302219.9745.49162
Percentage of CashAndCashEquivalentsFairValueDisclosure100.0100.0100.0100.099.097.286.7100.0100.00.00.00.0

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-312015-12-31
Value7483824994995834705499251139727422318363397646203410195182
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerLiability

us-gaap:ContractWithCustomerLiability


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-01-012017-12-31
Value82941201451521521531584033.0263.9545.067131616
Percentage of ContractWithCustomerLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerLiabilityNoncurrent

us-gaap:ContractWithCustomerLiabilityNoncurrent


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-31
Value2022082252652813063182963130.4780.4581.6234.52243
Percentage of ContractWithCustomerLiabilityNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsDeferredIncome

us-gaap:DeferredTaxAssetsDeferredIncome


Deferred
Period End2020-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value8413201714373053
Percentage of DeferredTaxAssetsDeferredIncome100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsGoodwillAndIntangibleAssets

us-gaap:DeferredTaxAssetsGoodwillAndIntangibleAssets


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value14866509.0181416172.212.544.302
Percentage of DeferredTaxAssetsGoodwillAndIntangibleAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsGross


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value15011113868689576412301235209154
Percentage of DeferredTaxAssetsGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsOperatingLossCarryforwards

us-gaap:DeferredTaxAssetsOperatingLossCarryforwards


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value53762750640534625317612410246
Percentage of DeferredTaxAssetsOperatingLossCarryforwards100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsOther

us-gaap:DeferredTaxAssetsOther


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value321320117.8456.5085.8714.8854.1732.85
Percentage of DeferredTaxAssetsOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxCreditCarryforwardsResearch

us-gaap:DeferredTaxAssetsTaxCreditCarryforwardsResearch


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value3012612201921116138231712
Percentage of DeferredTaxAssetsTaxCreditCarryforwardsResearch100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value67755742513324212421
Percentage of DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesLeasingArrangements

us-gaap:DeferredTaxLiabilitiesLeasingArrangements


Deferred
Period End2020-12-312019-12-312018-12-31
Value50500.0
Percentage of DeferredTaxLiabilitiesLeasingArrangements100.0100.00.0

us-gaap:DeferredTaxLiabilitiesOtherComprehensiveIncome

us-gaap:DeferredTaxLiabilitiesOtherComprehensiveIncome


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value123.9320.9030.7651.52414321310
Percentage of DeferredTaxLiabilitiesOtherComprehensiveIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment


Deferred
Period End2020-12-312019-12-312018-12-31
Value10106.55
Percentage of DeferredTaxLiabilitiesPropertyPlantAndEquipment100.0100.0100.0

us-gaap:DefinedBenefitPlanBenefitObligation us-gaap:BalanceSheetLocation, us-gaap:RetirementPlanFundingStatus

us-gaap:DefinedBenefitPlanBenefitObligation

us-gaap:OtherNoncurrentLiabilities, us-gaap:UnfundedPlan


Defined
Period End2020-12-312020-09-302020-06-302020-03-312019-12-31
Value5200000.04300000.04300000.04300000.04300000.0
Percentage of DefinedBenefitPlanBenefitObligation100.0100.0100.0100.0100.0

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

us-gaap:DerivativeLiabilities

us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsRecurring


Derivative
Period End2021-06-302021-03-312020-12-312020-09-30
Value5648255.43
Percentage of DerivativeLiabilities100.0100.0100.0100.0

us-gaap:DerivativeLiabilities us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring


Derivative
Period End2021-06-302021-03-312020-12-312020-09-30
Value5648255.43
Percentage of DerivativeLiabilities100.0100.0100.0100.0

us-gaap:EmployeeRelatedLiabilitiesCurrent

us-gaap:EmployeeRelatedLiabilitiesCurrent


Employee
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value9768373313117.3574.822
Percentage of EmployeeRelatedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized us-gaap:AwardType

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized

alny:OtherEquityPrograms


Employee
Period End2020-12-31
Value8.159
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized100.0

alny:PerformanceBasedRestrictedStockUnits


Employee
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value1.286121.7471413
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized15.80.00.00.00.0

alny:TimeBasedRestrictedStockUnits


Employee
Period End2020-12-312019-12-312018-12-31
Value1.5937.0140.769
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized19.50.00.0

alny:TimeBasedStockOptions


Employee
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value183184156124137128
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized2251.50.00.00.00.00.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue us-gaap:FinancialInstrument

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue

us-gaap:Derivative


Fair
Period End2021-06-302021-03-312020-12-312020-09-30
Value5648255.43
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue100.0100.0100.0100.0

us-gaap:InventoryNoncurrent us-gaap:BalanceSheetLocation

us-gaap:InventoryNoncurrent

us-gaap:OtherAssets


Inventory
Period End2021-06-302021-03-312020-12-312020-09-30
Value11171717
Percentage of InventoryNoncurrent100.0100.0100.0100.0

us-gaap:InventoryRawMaterials

us-gaap:InventoryRawMaterials


Inventory
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value54536354433015118.4469.1798.709
Percentage of InventoryRawMaterials100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InventoryWorkInProcess

us-gaap:InventoryWorkInProcess


Inventory
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value2523162220333842312215
Percentage of InventoryWorkInProcess100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths


Lessee
Period End2020-12-31
Value38
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths100.0

us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity us-gaap:CreditFacility, us-gaap:LongtermDebtType

us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity

us-gaap:LineOfCredit, us-gaap:SecuredDebt


Line
Period End2021-06-30
Value250
Percentage of LineOfCreditFacilityRemainingBorrowingCapacity100.0

us-gaap:LossContingencyAccrualAtCarryingValue

us-gaap:LossContingencyAccrualAtCarryingValue


Loss
Period End2020-12-31
Value41
Percentage of LossContingencyAccrualAtCarryingValue100.0

us-gaap:OperatingLossCarryforwards us-gaap:IncomeTaxAuthority

us-gaap:OperatingLossCarryforwards

alny:Federal


Operating
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value20002400190014701160931639372272
Percentage of OperatingLossCarryforwards100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StateAndLocalJurisdiction


Operating
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value19002100160015501230991701441337
Percentage of OperatingLossCarryforwards95.087.584.2105.4106.0106.5109.8118.6123.9

us-gaap:RestrictedCash

us-gaap:RestrictedCash


Restricted
Period End2021-06-302021-03-312020-06-302020-03-31
Value2298000.02462000.02452000.02614000.0
Percentage of RestrictedCash100.0100.0100.0100.0

us-gaap:RestrictedCashAndCashEquivalents us-gaap:FairValueByAssetClass, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:RestrictedCashAndCashEquivalents

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


Restricted
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-31
Value1483000.01483000.01483000.01483000.01483000.01483000.01482000.01481000.01480000.01478000.01477000.01476000.01474000.01474000.01471000.01471000.01471000.01471000.01471000.01471000.01471000.01471000.0
Percentage of RestrictedCashAndCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestrictedCashAndCashEquivalents us-gaap:FairValueByAssetClass, us-gaap:FairValueByMeasurementFrequency

us-gaap:MoneyMarketFunds, us-gaap:FairValueMeasurementsRecurring


Restricted
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-31
Value1483000.01483000.01483000.01483000.01483000.01483000.01482000.01481000.01480000.01478000.01477000.01476000.01474000.01474000.01471000.01471000.01471000.01471000.01471000.01471000.01471000.01471000.0
Percentage of RestrictedCashAndCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestrictedCashCurrent

us-gaap:RestrictedCashCurrent


Restricted
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value2466000.05000.05000.0167000.04000.04000.0332000.0439000.0225000.000
Percentage of RestrictedCashCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0

us-gaap:RestrictedCashNoncurrent

us-gaap:RestrictedCashNoncurrent


Restricted
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value2447000.02447000.02447000.02446000.02442000.02983000.02306000.02260000.02138000.01934000.01727000.01471000.01471000.0
Percentage of RestrictedCashNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestrictedInvestmentsNoncurrent

us-gaap:RestrictedInvestmentsNoncurrent


Restricted
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value404040242424141444444444443030150150150150
Percentage of RestrictedInvestmentsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestrictedInvestmentsNoncurrent us-gaap:LeaseContractualTerm

alny:BMRSixSevenFiveWestKendallLease


Restricted
Period End2020-12-31
Value14
Percentage of RestrictedInvestmentsNoncurrent36.3

us-gaap:RevenueRemainingPerformanceObligation us-gaap:CounterpartyName

us-gaap:RevenueRemainingPerformanceObligation

alny:VirBiotechnologyInc


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-30
Value45485196103
Percentage of RevenueRemainingPerformanceObligation100.0100.0100.0100.0100.0

us-gaap:RevenueRemainingPerformanceObligation us-gaap:CounterpartyName, us-gaap:TypeOfArrangement

alny:RegeneronPharmaceuticalsIncorporation, alny:GlobalStrategicCollaboration


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-30
Value171188212254265
Percentage of RevenueRemainingPerformanceObligation376.3385.9411.8263.2256.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber

alny:PerformanceBasedRestrictedStockUnits


Share
Period End2020-12-312019-12-312018-12-31
Value1043000.0623000.022000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber100.0100.0100.0

us-gaap:RestrictedStockUnitsRSU


Share
Period End2020-12-312019-12-312018-12-312016-12-312015-12-31
Value117000.0127000.015000.020482.019271.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber11.220.468.20.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue

alny:PerformanceBasedRestrictedStockUnits


Share
Period End2020-12-312019-12-312018-12-31
Value107.2685.3691.72
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue100.0100.0100.0

us-gaap:RestrictedStockUnitsRSU


Share
Period End2020-12-312019-12-312018-12-312016-12-312015-12-31
Value83.6677.2389.4488.5968.79
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue78.090.597.50.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber

alny:PerformanceBasedStockOptions


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value1414000.01956000.01420000.0813000.0262000.0120000.0150000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber100.0100.0100.0100.0100.0100.0100.0

alny:TimeBasedStockOptions


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value5835000.06196000.05734000.05294000.05644000.04699000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber412.7316.8403.8651.22154.23915.8

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice

alny:PerformanceBasedStockOptions


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value87.2282.8974.2973.6682.1263.063.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice100.0100.0100.0100.0100.0100.0100.0

alny:TimeBasedStockOptions


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value76.7969.4458.951.5444.1730.61
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice88.083.879.370.053.848.6

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue

alny:PerformanceBasedStockOptions


Share
Period End2020-12-312019-12-312018-12-312017-12-312015-12-312014-12-31
Value6265231231615
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue100.0100.0100.0100.0100.0100.0

alny:TimeBasedStockOptions


Share
Period End2020-12-312019-12-312018-12-312017-12-312015-12-31
Value423428149609352
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue675.6658.6631.0492.42170.9

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue

alny:TimeBasedStockOptions


Share
Period End2020-12-31
Value414
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber

alny:TimeBasedStockOptions


Share
Period End2020-12-31
Value9692000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice

alny:TimeBasedStockOptions


Share
Period End2020-12-31
Value87.53
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice100.0

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1 us-gaap:AwardType

us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1

alny:PerformanceBasedStockOptions


Sharebased
Period End2020-12-312019-12-312018-12-312017-12-312015-12-312014-12-31
Value606513433.7415.1
Percentage of SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1100.0100.0100.0100.0100.0100.0

alny:TimeBasedStockOptions


Sharebased
Period End2020-12-312019-12-312018-12-312017-12-312015-12-31
Value310290127400299
Percentage of SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1514.3446.8967.3922.28002.3

us-gaap:TaxCreditCarryforwardAmount us-gaap:IncomeTaxAuthority, us-gaap:TaxCreditCarryforward

us-gaap:TaxCreditCarryforwardAmount

alny:Federal, alny:ResearchAndDevelopmentIncludingOrphanDrugAndStateInvestmentsTaxCredit


Tax
Period End2020-12-312019-12-312018-12-31
Value272240208
Percentage of TaxCreditCarryforwardAmount100.0100.0100.0

us-gaap:StateAndLocalJurisdiction, alny:ResearchAndDevelopmentIncludingOrphanDrugAndStateInvestmentsTaxCredit


Tax
Period End2020-12-312019-12-312018-12-31
Value432716
Percentage of TaxCreditCarryforwardAmount15.811.27.8

us-gaap:ValuationAllowancesAndReservesBalance

us-gaap:ValuationAllowancesAndReservesBalance


Valuation
Period End2020-12-312019-12-312018-12-312017-12-31
Value95343.980.0
Percentage of ValuationAllowancesAndReservesBalance100.0100.0100.00.0

us-gaap:ValuationAllowancesAndReservesBalance us-gaap:ValuationAllowancesAndReservesType

alny:ChargebacksAndRebates


Valuation
Period End2020-12-312019-12-312018-12-312017-12-31
Value90323.4410.0
Percentage of ValuationAllowancesAndReservesBalance95.493.286.50.0

alny:ReturnsReserveAndOtherIncentives


Valuation
Period End2020-12-312019-12-312018-12-312017-12-31
Value3.7631.9780.3210.0
Percentage of ValuationAllowancesAndReservesBalance4.05.78.10.0

alny:TradeDiscountsAndAllowances


Valuation
Period End2020-12-312019-12-312018-12-312017-12-31
Value0.6390.410.2180.0
Percentage of ValuationAllowancesAndReservesBalance0.71.25.50.0

Line plots across dimensions of each concept


us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities
(None,)
Antidilutive Securities Excluded From Computation Of Earnings Per Share Amountus-gaap: Antidilutive Securities Excluded From Computation Of Earnings Per Share By Antidilutive Securities
TTM Greenblatt ROC
_
(None,)
T T M  Greenblatt  R O C_
us-gaap:AllocatedShareBasedCompensationExpense
us-gaap:IncomeStatementLocation
(None,)
Allocated Share Based Compensation Expenseus-gaap: Income Statement Location
us-gaap:OtherComprehensiveIncomeLossNetOfTax
us-gaap:StatementEquityComponents
(None,)
Other Comprehensive Income Loss Net Of Taxus-gaap: Statement Equity Components
us-gaap:ResearchAndDevelopmentExpense
us-gaap:TypeOfArrangement
(None,)
Research And Development Expenseus-gaap: Type Of Arrangement
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:ProductOrService
(None,)
Revenue From Contract With Customer Excluding Assessed Taxus-gaap: Product Or Service
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:CounterpartyName, us-gaap:TypeOfArrangement
(None, 'us-gaap:CollaborativeArrangement')
Revenue From Contract With Customer Excluding Assessed Taxus-gaap: Counterparty Name, us-gaap: Type Of Arrangement
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:CounterpartyName, us-gaap:ProductOrService, us-gaap:TypeOfArrangement
('alny:RegeneronPharmaceuticalsIncorporation', None, 'alny:GlobalStrategicCollaboration')
Revenue From Contract With Customer Excluding Assessed Taxus-gaap: Counterparty Name, us-gaap: Product Or Service, us-gaap: Type Of Arrangement
us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents
(None,)
Stockholders Equityus-gaap: Statement Equity Components
us-gaap:PropertyPlantAndEquipmentGross
us-gaap:PropertyPlantAndEquipmentByType
(None,)
Property Plant And Equipment Grossus-gaap: Property Plant And Equipment By Type
us-gaap:ContractWithCustomerLiabilityCurrent
us-gaap:CounterpartyName, us-gaap:ProductOrService, us-gaap:TypeOfArrangement
('alny:RegeneronPharmaceuticalsIncorporation', None, 'alny:GlobalStrategicCollaboration')
Contract With Customer Liability Currentus-gaap: Counterparty Name, us-gaap: Product Or Service, us-gaap: Type Of Arrangement
us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents
(None,)
Stockholders Equityus-gaap: Statement Equity Components