ago-202309300001273813FALSE12/312023Q300012738132023-01-012023-09-300001273813us-gaap:CommonStockMemberexch:XNYS2023-01-012023-09-300001273813exch:XNYSago:AssuredGuarantyUSHoldingsInc6125SeniorNotesDue2028Member2023-01-012023-09-300001273813exch:XNYSago:AssuredGuarantyUSHoldingsInc3150SeniorNotesDue2031Member2023-01-012023-09-300001273813ago:AssuredGuarantyUSHoldingsInc3600SeniorNotesDue2051Memberexch:XNYS2023-01-012023-09-3000012738132023-11-06xbrli:shares00012738132023-09-30iso4217:USD00012738132022-12-31iso4217:USDxbrli:shares00012738132023-07-012023-09-3000012738132022-07-012022-09-3000012738132022-01-012022-09-300001273813us-gaap:CommonStockMember2023-06-300001273813us-gaap:RetainedEarningsMember2023-06-300001273813us-gaap:AccumulatedOtherComprehensiveIncomeMember2023-06-300001273813us-gaap:DeferredCompensationShareBasedPaymentsMember2023-06-300001273813us-gaap:ParentMember2023-06-300001273813us-gaap:NoncontrollingInterestMember2023-06-3000012738132023-06-300001273813us-gaap:RetainedEarningsMember2023-07-012023-09-300001273813us-gaap:ParentMember2023-07-012023-09-300001273813us-gaap:NoncontrollingInterestMember2023-07-012023-09-300001273813us-gaap:CommonStockMember2023-07-012023-09-300001273813us-gaap:AccumulatedOtherComprehensiveIncomeMember2023-07-012023-09-300001273813us-gaap:CommonStockMember2023-09-300001273813us-gaap:RetainedEarningsMember2023-09-300001273813us-gaap:AccumulatedOtherComprehensiveIncomeMember2023-09-300001273813us-gaap:DeferredCompensationShareBasedPaymentsMember2023-09-300001273813us-gaap:ParentMember2023-09-300001273813us-gaap:NoncontrollingInterestMember2023-09-300001273813us-gaap:CommonStockMember2022-06-300001273813us-gaap:RetainedEarningsMember2022-06-300001273813us-gaap:AccumulatedOtherComprehensiveIncomeMember2022-06-300001273813us-gaap:DeferredCompensationShareBasedPaymentsMember2022-06-300001273813us-gaap:ParentMember2022-06-300001273813us-gaap:NoncontrollingInterestMember2022-06-3000012738132022-06-300001273813us-gaap:RetainedEarningsMember2022-07-012022-09-300001273813us-gaap:ParentMember2022-07-012022-09-300001273813us-gaap:NoncontrollingInterestMember2022-07-012022-09-300001273813us-gaap:CommonStockMember2022-07-012022-09-300001273813us-gaap:AccumulatedOtherComprehensiveIncomeMember2022-07-012022-09-300001273813us-gaap:CommonStockMember2022-09-300001273813us-gaap:RetainedEarningsMember2022-09-300001273813us-gaap:AccumulatedOtherComprehensiveIncomeMember2022-09-300001273813us-gaap:DeferredCompensationShareBasedPaymentsMember2022-09-300001273813us-gaap:ParentMember2022-09-300001273813us-gaap:NoncontrollingInterestMember2022-09-3000012738132022-09-300001273813us-gaap:CommonStockMember2022-12-310001273813us-gaap:RetainedEarningsMember2022-12-310001273813us-gaap:AccumulatedOtherComprehensiveIncomeMember2022-12-310001273813us-gaap:DeferredCompensationShareBasedPaymentsMember2022-12-310001273813us-gaap:ParentMember2022-12-310001273813us-gaap:NoncontrollingInterestMember2022-12-310001273813us-gaap:RetainedEarningsMember2023-01-012023-09-300001273813us-gaap:ParentMember2023-01-012023-09-300001273813us-gaap:NoncontrollingInterestMember2023-01-012023-09-300001273813us-gaap:CommonStockMember2023-01-012023-09-300001273813us-gaap:AccumulatedOtherComprehensiveIncomeMember2023-01-012023-09-300001273813us-gaap:CommonStockMember2021-12-310001273813us-gaap:RetainedEarningsMember2021-12-310001273813us-gaap:AccumulatedOtherComprehensiveIncomeMember2021-12-310001273813us-gaap:DeferredCompensationShareBasedPaymentsMember2021-12-310001273813us-gaap:ParentMember2021-12-310001273813us-gaap:NoncontrollingInterestMember2021-12-3100012738132021-12-310001273813us-gaap:RetainedEarningsMember2022-01-012022-09-300001273813us-gaap:ParentMember2022-01-012022-09-300001273813us-gaap:NoncontrollingInterestMember2022-01-012022-09-300001273813us-gaap:CommonStockMember2022-01-012022-09-300001273813us-gaap:AccumulatedOtherComprehensiveIncomeMember2022-01-012022-09-300001273813us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperationsMemberago:SoundPointAgreementMember2023-07-012023-09-300001273813us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperationsMemberago:SoundPointAgreementMember2023-07-012023-07-01xbrli:pure0001273813ago:ConsolidatedInvestmentVehiclesMember2023-07-012023-07-01ago:rISK0001273813ago:SoundPointCapitalManagementLPMember2023-07-010001273813us-gaap:OtherInvesteesMember2023-07-0100012738132023-07-010001273813ago:AssuredIMMember2023-07-0100012738132023-07-012023-07-010001273813ago:SoundPointAgreementMember2023-07-010001273813ago:SoundPointCapitalManagementLPMember2023-07-012023-07-010001273813ago:AssuredHealthcarePartnersLLCMember2023-07-012023-07-010001273813us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperationsMemberago:SoundPointAgreementMember2023-01-012023-09-300001273813us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperationsMember2023-09-30ago:Companyago:segment0001273813ago:InsuranceSegmentMemberago:OperatingSegmentsExcludingIntersegmentEliminationMember2023-07-012023-09-300001273813ago:AssetManagementSegmentMemberago:OperatingSegmentsExcludingIntersegmentEliminationMember2023-07-012023-09-300001273813ago:InsuranceSegmentMemberago:OperatingSegmentsExcludingIntersegmentEliminationMember2022-07-012022-09-300001273813ago:AssetManagementSegmentMemberago:OperatingSegmentsExcludingIntersegmentEliminationMember2022-07-012022-09-300001273813us-gaap:IntersegmentEliminationMemberago:InsuranceSegmentMember2023-07-012023-09-300001273813us-gaap:IntersegmentEliminationMemberago:AssetManagementSegmentMember2023-07-012023-09-300001273813us-gaap:IntersegmentEliminationMemberago:InsuranceSegmentMember2022-07-012022-09-300001273813us-gaap:IntersegmentEliminationMemberago:AssetManagementSegmentMember2022-07-012022-09-300001273813us-gaap:OperatingSegmentsMemberago:InsuranceSegmentMember2023-07-012023-09-300001273813us-gaap:OperatingSegmentsMemberago:AssetManagementSegmentMember2023-07-012023-09-300001273813us-gaap:OperatingSegmentsMemberago:InsuranceSegmentMember2022-07-012022-09-300001273813us-gaap:OperatingSegmentsMemberago:AssetManagementSegmentMember2022-07-012022-09-300001273813ago:InsuranceSegmentMemberago:OperatingSegmentsExcludingIntersegmentEliminationMember2023-01-012023-09-300001273813ago:AssetManagementSegmentMemberago:OperatingSegmentsExcludingIntersegmentEliminationMember2023-01-012023-09-300001273813ago:InsuranceSegmentMemberago:OperatingSegmentsExcludingIntersegmentEliminationMember2022-01-012022-09-300001273813ago:AssetManagementSegmentMemberago:OperatingSegmentsExcludingIntersegmentEliminationMember2022-01-012022-09-300001273813us-gaap:IntersegmentEliminationMemberago:InsuranceSegmentMember2023-01-012023-09-300001273813us-gaap:IntersegmentEliminationMemberago:AssetManagementSegmentMember2023-01-012023-09-300001273813us-gaap:IntersegmentEliminationMemberago:InsuranceSegmentMember2022-01-012022-09-300001273813us-gaap:IntersegmentEliminationMemberago:AssetManagementSegmentMember2022-01-012022-09-300001273813us-gaap:OperatingSegmentsMemberago:InsuranceSegmentMember2023-01-012023-09-300001273813us-gaap:OperatingSegmentsMemberago:AssetManagementSegmentMember2023-01-012023-09-300001273813us-gaap:OperatingSegmentsMemberago:InsuranceSegmentMember2022-01-012022-09-300001273813us-gaap:OperatingSegmentsMemberago:AssetManagementSegmentMember2022-01-012022-09-300001273813us-gaap:OperatingSegmentsMember2023-07-012023-09-300001273813us-gaap:CorporateNonSegmentMember2023-07-012023-09-300001273813ago:OtherOperatingSegmentsAndIntersegmentEliminationsMember2023-07-012023-09-300001273813ago:OperatingSegmentsAndCorporateNonSegmentMember2023-07-012023-09-300001273813us-gaap:MaterialReconcilingItemsMemberus-gaap:GainLossOnInvestmentsMember12023-07-012023-09-300001273813ago:NonCreditImpairmentRelatedUnrealizedFairValueGainsLossesOnCreditDerivativesMemberus-gaap:MaterialReconcilingItemsMember2023-07-012023-09-300001273813ago:FairValueGainsLossesOnCommittedCapitalSecuritiesMemberus-gaap:MaterialReconcilingItemsMember2023-07-012023-09-300001273813ago:ForeignExchangeGainsLossesOnRemeasurmentOfPremiumsReceivableAndLossMemberus-gaap:MaterialReconcilingItemsMember2023-07-012023-09-300001273813us-gaap:MaterialReconcilingItemsMember2023-07-012023-09-300001273813ago:IncomeTaxExpenseBenefitMemberus-gaap:MaterialReconcilingItemsMember2023-07-012023-09-300001273813us-gaap:OperatingSegmentsMember2022-07-012022-09-300001273813us-gaap:CorporateNonSegmentMember2022-07-012022-09-300001273813ago:OtherOperatingSegmentsAndIntersegmentEliminationsMember2022-07-012022-09-300001273813ago:OperatingSegmentsAndCorporateNonSegmentMember2022-07-012022-09-300001273813us-gaap:MaterialReconcilingItemsMemberus-gaap:GainLossOnInvestmentsMember12022-07-012022-09-300001273813ago:NonCreditImpairmentRelatedUnrealizedFairValueGainsLossesOnCreditDerivativesMemberus-gaap:MaterialReconcilingItemsMember2022-07-012022-09-300001273813us-gaap:MaterialReconcilingItemsMember2022-07-012022-09-300001273813ago:FairValueGainsLossesOnCommittedCapitalSecuritiesMemberus-gaap:MaterialReconcilingItemsMember2022-07-012022-09-300001273813ago:ForeignExchangeGainsLossesOnRemeasurmentOfPremiumsReceivableAndLossMemberus-gaap:MaterialReconcilingItemsMember2022-07-012022-09-300001273813ago:IncomeTaxExpenseBenefitMemberus-gaap:MaterialReconcilingItemsMember2022-07-012022-09-300001273813us-gaap:OperatingSegmentsMember2023-01-012023-09-300001273813us-gaap:CorporateNonSegmentMember2023-01-012023-09-300001273813ago:OtherOperatingSegmentsAndIntersegmentEliminationsMember2023-01-012023-09-300001273813ago:OperatingSegmentsAndCorporateNonSegmentMember2023-01-012023-09-300001273813us-gaap:MaterialReconcilingItemsMemberus-gaap:GainLossOnInvestmentsMember12023-01-012023-09-300001273813ago:NonCreditImpairmentRelatedUnrealizedFairValueGainsLossesOnCreditDerivativesMemberus-gaap:MaterialReconcilingItemsMember2023-01-012023-09-300001273813us-gaap:MaterialReconcilingItemsMember2023-01-012023-09-300001273813ago:FairValueGainsLossesOnCommittedCapitalSecuritiesMemberus-gaap:MaterialReconcilingItemsMember2023-01-012023-09-300001273813ago:ForeignExchangeGainsLossesOnRemeasurmentOfPremiumsReceivableAndLossMemberus-gaap:MaterialReconcilingItemsMember2023-01-012023-09-300001273813ago:IncomeTaxExpenseBenefitMemberus-gaap:MaterialReconcilingItemsMember2023-01-012023-09-300001273813us-gaap:OperatingSegmentsMember2022-01-012022-09-300001273813us-gaap:CorporateNonSegmentMember2022-01-012022-09-300001273813ago:OtherOperatingSegmentsAndIntersegmentEliminationsMember2022-01-012022-09-300001273813ago:OperatingSegmentsAndCorporateNonSegmentMember2022-01-012022-09-300001273813us-gaap:MaterialReconcilingItemsMemberus-gaap:GainLossOnInvestmentsMember12022-01-012022-09-300001273813ago:NonCreditImpairmentRelatedUnrealizedFairValueGainsLossesOnCreditDerivativesMemberus-gaap:MaterialReconcilingItemsMember2022-01-012022-09-300001273813us-gaap:MaterialReconcilingItemsMember2022-01-012022-09-300001273813ago:FairValueGainsLossesOnCommittedCapitalSecuritiesMemberus-gaap:MaterialReconcilingItemsMember2022-01-012022-09-300001273813ago:ForeignExchangeGainsLossesOnRemeasurmentOfPremiumsReceivableAndLossMemberus-gaap:MaterialReconcilingItemsMember2022-01-012022-09-300001273813ago:IncomeTaxExpenseBenefitMemberus-gaap:MaterialReconcilingItemsMember2022-01-012022-09-30ago:Category0001273813srt:MinimumMember2023-09-300001273813us-gaap:InternalNoninvestmentGradeMember2023-01-012023-09-300001273813ago:PublicFinanceMember2023-09-300001273813ago:PublicFinanceMember2022-12-310001273813us-gaap:StructuredFinanceMember2023-09-300001273813us-gaap:StructuredFinanceMember2022-12-310001273813ago:CommitmenttoProvideGuaranteesMemberago:PublicFinanceMember2023-09-300001273813us-gaap:StructuredFinanceMemberago:CommitmenttoProvideGuaranteesMember2023-09-300001273813country:USago:PublicFinanceMemberago:InternalInvestmentGradeAAAMember2023-09-300001273813ago:PublicFinanceMemberus-gaap:NonUsMemberago:InternalInvestmentGradeAAAMember2023-09-300001273813country:USus-gaap:StructuredFinanceMemberago:InternalInvestmentGradeAAAMember2023-09-300001273813us-gaap:StructuredFinanceMemberus-gaap:NonUsMemberago:InternalInvestmentGradeAAAMember2023-09-300001273813ago:InternalInvestmentGradeAAAMember2023-09-300001273813country:USago:PublicFinanceMemberago:InternalInvestmentGradeAAMember2023-09-300001273813ago:PublicFinanceMemberago:InternalInvestmentGradeAAMemberus-gaap:NonUsMember2023-09-300001273813country:USus-gaap:StructuredFinanceMemberago:InternalInvestmentGradeAAMember2023-09-300001273813us-gaap:StructuredFinanceMemberago:InternalInvestmentGradeAAMemberus-gaap:NonUsMember2023-09-300001273813ago:InternalInvestmentGradeAAMember2023-09-300001273813country:USago:PublicFinanceMemberago:InternalInvestmentGradeAMember2023-09-300001273813ago:PublicFinanceMemberago:InternalInvestmentGradeAMemberus-gaap:NonUsMember2023-09-300001273813country:USus-gaap:StructuredFinanceMemberago:InternalInvestmentGradeAMember2023-09-300001273813us-gaap:StructuredFinanceMemberago:InternalInvestmentGradeAMemberus-gaap:NonUsMember2023-09-300001273813ago:InternalInvestmentGradeAMember2023-09-300001273813country:USago:PublicFinanceMemberago:InternalInvestmentGradeBBBMember2023-09-300001273813ago:PublicFinanceMemberago:InternalInvestmentGradeBBBMemberus-gaap:NonUsMember2023-09-300001273813country:USus-gaap:StructuredFinanceMemberago:InternalInvestmentGradeBBBMember2023-09-300001273813us-gaap:StructuredFinanceMemberago:InternalInvestmentGradeBBBMemberus-gaap:NonUsMember2023-09-300001273813ago:InternalInvestmentGradeBBBMember2023-09-300001273813country:USago:PublicFinanceMemberus-gaap:InternalNoninvestmentGradeMember2023-09-300001273813ago:PublicFinanceMemberus-gaap:NonUsMemberus-gaap:InternalNoninvestmentGradeMember2023-09-300001273813country:USus-gaap:StructuredFinanceMemberus-gaap:InternalNoninvestmentGradeMember2023-09-300001273813us-gaap:StructuredFinanceMemberus-gaap:NonUsMemberus-gaap:InternalNoninvestmentGradeMember2023-09-300001273813us-gaap:InternalNoninvestmentGradeMember2023-09-300001273813country:USago:PublicFinanceMember2023-09-300001273813ago:PublicFinanceMemberus-gaap:NonUsMember2023-09-300001273813country:USus-gaap:StructuredFinanceMember2023-09-300001273813us-gaap:StructuredFinanceMemberus-gaap:NonUsMember2023-09-300001273813country:USago:PublicFinanceMemberago:InternalInvestmentGradeAAAMember2022-12-310001273813ago:PublicFinanceMemberus-gaap:NonUsMemberago:InternalInvestmentGradeAAAMember2022-12-310001273813country:USus-gaap:StructuredFinanceMemberago:InternalInvestmentGradeAAAMember2022-12-310001273813us-gaap:StructuredFinanceMemberus-gaap:NonUsMemberago:InternalInvestmentGradeAAAMember2022-12-310001273813ago:InternalInvestmentGradeAAAMember2022-12-310001273813country:USago:PublicFinanceMemberago:InternalInvestmentGradeAAMember2022-12-310001273813ago:PublicFinanceMemberago:InternalInvestmentGradeAAMemberus-gaap:NonUsMember2022-12-310001273813country:USus-gaap:StructuredFinanceMemberago:InternalInvestmentGradeAAMember2022-12-310001273813us-gaap:StructuredFinanceMemberago:InternalInvestmentGradeAAMemberus-gaap:NonUsMember2022-12-310001273813ago:InternalInvestmentGradeAAMember2022-12-310001273813country:USago:PublicFinanceMemberago:InternalInvestmentGradeAMember2022-12-310001273813ago:PublicFinanceMemberago:InternalInvestmentGradeAMemberus-gaap:NonUsMember2022-12-310001273813country:USus-gaap:StructuredFinanceMemberago:InternalInvestmentGradeAMember2022-12-310001273813us-gaap:StructuredFinanceMemberago:InternalInvestmentGradeAMemberus-gaap:NonUsMember2022-12-310001273813ago:InternalInvestmentGradeAMember2022-12-310001273813country:USago:PublicFinanceMemberago:InternalInvestmentGradeBBBMember2022-12-310001273813ago:PublicFinanceMemberago:InternalInvestmentGradeBBBMemberus-gaap:NonUsMember2022-12-310001273813country:USus-gaap:StructuredFinanceMemberago:InternalInvestmentGradeBBBMember2022-12-310001273813us-gaap:StructuredFinanceMemberago:InternalInvestmentGradeBBBMemberus-gaap:NonUsMember2022-12-310001273813ago:InternalInvestmentGradeBBBMember2022-12-310001273813country:USago:PublicFinanceMemberus-gaap:InternalNoninvestmentGradeMember2022-12-310001273813ago:PublicFinanceMemberus-gaap:NonUsMemberus-gaap:InternalNoninvestmentGradeMember2022-12-310001273813country:USus-gaap:StructuredFinanceMemberus-gaap:InternalNoninvestmentGradeMember2022-12-310001273813us-gaap:StructuredFinanceMemberus-gaap:NonUsMemberus-gaap:InternalNoninvestmentGradeMember2022-12-310001273813us-gaap:InternalNoninvestmentGradeMember2022-12-310001273813country:USago:PublicFinanceMember2022-12-310001273813ago:PublicFinanceMemberus-gaap:NonUsMember2022-12-310001273813country:USus-gaap:StructuredFinanceMember2022-12-310001273813us-gaap:StructuredFinanceMemberus-gaap:NonUsMember2022-12-310001273813country:USago:InternalNoninvestmentGradeLevel1Memberago:PublicFinanceMemberus-gaap:InternalNoninvestmentGradeMember2023-09-300001273813ago:InternalNoninvestmentGradeLevel2Membercountry:USago:PublicFinanceMemberus-gaap:InternalNoninvestmentGradeMember2023-09-300001273813country:USago:InternalNoninvestmentGradeLevel3Memberago:PublicFinanceMemberus-gaap:InternalNoninvestmentGradeMember2023-09-300001273813ago:InternalNoninvestmentGradeLevel1Memberago:PublicFinanceMemberus-gaap:NonUsMemberus-gaap:InternalNoninvestmentGradeMember2023-09-300001273813ago:InternalNoninvestmentGradeLevel2Memberago:PublicFinanceMemberus-gaap:NonUsMemberus-gaap:InternalNoninvestmentGradeMember2023-09-300001273813ago:InternalNoninvestmentGradeLevel3Memberago:PublicFinanceMemberus-gaap:NonUsMemberus-gaap:InternalNoninvestmentGradeMember2023-09-300001273813ago:InternalNoninvestmentGradeLevel1Memberago:PublicFinanceMemberus-gaap:InternalNoninvestmentGradeMember2023-09-300001273813ago:InternalNoninvestmentGradeLevel2Memberago:PublicFinanceMemberus-gaap:InternalNoninvestmentGradeMember2023-09-300001273813ago:InternalNoninvestmentGradeLevel3Memberago:PublicFinanceMemberus-gaap:InternalNoninvestmentGradeMember2023-09-300001273813ago:PublicFinanceMemberus-gaap:InternalNoninvestmentGradeMember2023-09-300001273813country:USago:InternalNoninvestmentGradeLevel1Memberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:InternalNoninvestmentGradeMember2023-09-300001273813ago:InternalNoninvestmentGradeLevel2Membercountry:USus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:InternalNoninvestmentGradeMember2023-09-300001273813country:USago:InternalNoninvestmentGradeLevel3Memberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:InternalNoninvestmentGradeMember2023-09-300001273813country:USus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:InternalNoninvestmentGradeMember2023-09-300001273813country:USus-gaap:ResidentialMortgageBackedSecuritiesMember2023-09-300001273813ago:InternalNoninvestmentGradeLevel1Memberago:OtherStructuredFinanceMemberus-gaap:InternalNoninvestmentGradeMember2023-09-300001273813ago:InternalNoninvestmentGradeLevel2Memberago:OtherStructuredFinanceMemberus-gaap:InternalNoninvestmentGradeMember2023-09-300001273813ago:InternalNoninvestmentGradeLevel3Memberago:OtherStructuredFinanceMemberus-gaap:InternalNoninvestmentGradeMember2023-09-300001273813ago:OtherStructuredFinanceMemberus-gaap:InternalNoninvestmentGradeMember2023-09-300001273813ago:OtherStructuredFinanceMember2023-09-300001273813ago:InternalNoninvestmentGradeLevel1Memberus-gaap:StructuredFinanceMemberus-gaap:InternalNoninvestmentGradeMember2023-09-300001273813ago:InternalNoninvestmentGradeLevel2Memberus-gaap:StructuredFinanceMemberus-gaap:InternalNoninvestmentGradeMember2023-09-300001273813us-gaap:StructuredFinanceMemberago:InternalNoninvestmentGradeLevel3Memberus-gaap:InternalNoninvestmentGradeMember2023-09-300001273813us-gaap:StructuredFinanceMemberus-gaap:InternalNoninvestmentGradeMember2023-09-300001273813ago:InternalNoninvestmentGradeLevel1Memberus-gaap:InternalNoninvestmentGradeMember2023-09-300001273813ago:InternalNoninvestmentGradeLevel2Memberus-gaap:InternalNoninvestmentGradeMember2023-09-300001273813ago:InternalNoninvestmentGradeLevel3Memberus-gaap:InternalNoninvestmentGradeMember2023-09-300001273813country:USago:InternalNoninvestmentGradeLevel1Memberago:PublicFinanceMemberus-gaap:InternalNoninvestmentGradeMember2022-12-310001273813ago:InternalNoninvestmentGradeLevel2Membercountry:USago:PublicFinanceMemberus-gaap:InternalNoninvestmentGradeMember2022-12-310001273813country:USago:InternalNoninvestmentGradeLevel3Memberago:PublicFinanceMemberus-gaap:InternalNoninvestmentGradeMember2022-12-310001273813ago:InternalNoninvestmentGradeLevel1Memberago:PublicFinanceMemberus-gaap:NonUsMemberus-gaap:InternalNoninvestmentGradeMember2022-12-310001273813ago:InternalNoninvestmentGradeLevel2Memberago:PublicFinanceMemberus-gaap:NonUsMemberus-gaap:InternalNoninvestmentGradeMember2022-12-310001273813ago:InternalNoninvestmentGradeLevel3Memberago:PublicFinanceMemberus-gaap:NonUsMemberus-gaap:InternalNoninvestmentGradeMember2022-12-310001273813ago:InternalNoninvestmentGradeLevel1Memberago:PublicFinanceMemberus-gaap:InternalNoninvestmentGradeMember2022-12-310001273813ago:InternalNoninvestmentGradeLevel2Memberago:PublicFinanceMemberus-gaap:InternalNoninvestmentGradeMember2022-12-310001273813ago:InternalNoninvestmentGradeLevel3Memberago:PublicFinanceMemberus-gaap:InternalNoninvestmentGradeMember2022-12-310001273813ago:PublicFinanceMemberus-gaap:InternalNoninvestmentGradeMember2022-12-310001273813country:USago:InternalNoninvestmentGradeLevel1Memberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:InternalNoninvestmentGradeMember2022-12-310001273813ago:InternalNoninvestmentGradeLevel2Membercountry:USus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:InternalNoninvestmentGradeMember2022-12-310001273813country:USago:InternalNoninvestmentGradeLevel3Memberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:InternalNoninvestmentGradeMember2022-12-310001273813country:USus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:InternalNoninvestmentGradeMember2022-12-310001273813country:USus-gaap:ResidentialMortgageBackedSecuritiesMember2022-12-310001273813ago:InternalNoninvestmentGradeLevel1Memberago:OtherStructuredFinanceMemberus-gaap:InternalNoninvestmentGradeMember2022-12-310001273813ago:InternalNoninvestmentGradeLevel2Memberago:OtherStructuredFinanceMemberus-gaap:InternalNoninvestmentGradeMember2022-12-310001273813ago:InternalNoninvestmentGradeLevel3Memberago:OtherStructuredFinanceMemberus-gaap:InternalNoninvestmentGradeMember2022-12-310001273813ago:OtherStructuredFinanceMemberus-gaap:InternalNoninvestmentGradeMember2022-12-310001273813ago:OtherStructuredFinanceMember2022-12-310001273813ago:InternalNoninvestmentGradeLevel1Memberus-gaap:StructuredFinanceMemberus-gaap:InternalNoninvestmentGradeMember2022-12-310001273813ago:InternalNoninvestmentGradeLevel2Memberus-gaap:StructuredFinanceMemberus-gaap:InternalNoninvestmentGradeMember2022-12-310001273813us-gaap:StructuredFinanceMemberago:InternalNoninvestmentGradeLevel3Memberus-gaap:InternalNoninvestmentGradeMember2022-12-310001273813us-gaap:StructuredFinanceMemberus-gaap:InternalNoninvestmentGradeMember2022-12-310001273813ago:InternalNoninvestmentGradeLevel1Memberus-gaap:InternalNoninvestmentGradeMember2022-12-310001273813ago:InternalNoninvestmentGradeLevel2Memberus-gaap:InternalNoninvestmentGradeMember2022-12-310001273813ago:InternalNoninvestmentGradeLevel3Memberus-gaap:InternalNoninvestmentGradeMember2022-12-31ago:risk0001273813country:PRus-gaap:InternalNoninvestmentGradeMember2023-09-300001273813country:PRus-gaap:InternalNoninvestmentGradeMember2022-12-3100012738132023-08-310001273813ago:FinancialGuarantyVariableInterestEntitiesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:PuertoRicoTrustsMember2023-08-310001273813country:PR2023-09-300001273813country:PR2022-12-310001273813ago:PuertoRicoDefaultedExposuresSubjectToAPlanSupportAgreementMembercountry:PRago:PuertoRicoElectricPowerAuthorityMember2023-09-300001273813ago:PuertoRicoDefaultedExposuresSubjectToAPlanSupportAgreementMembercountry:PRago:PuertoRicoElectricPowerAuthorityMember2022-12-310001273813country:PRago:PuertoRicoResolvedExposuresSubjectToAPlanSupportAgreementMemberago:PuertoRicoTransportationAuthorityMember2023-09-300001273813country:PRago:PuertoRicoResolvedExposuresSubjectToAPlanSupportAgreementMemberago:PuertoRicoTransportationAuthorityMember2022-12-310001273813country:PRago:PuertoRicoResolvedExposuresSubjectToAPlanSupportAgreementMemberago:PuertoRicoHighwaysAuthorityMember2023-09-300001273813country:PRago:PuertoRicoResolvedExposuresSubjectToAPlanSupportAgreementMemberago:PuertoRicoHighwaysAuthorityMember2022-12-310001273813ago:CommonwealthofPuertoRicoGeneralObligationBondsMembercountry:PRago:PuertoRicoResolvedExposuresSubjectToAPlanSupportAgreementMember2023-09-300001273813ago:CommonwealthofPuertoRicoGeneralObligationBondsMembercountry:PRago:PuertoRicoResolvedExposuresSubjectToAPlanSupportAgreementMember2022-12-310001273813country:PRago:PuertoRicoResolvedExposuresSubjectToAPlanSupportAgreementMemberago:PuertoRicoPublicBuildingsAuthorityMember2023-09-300001273813country:PRago:PuertoRicoResolvedExposuresSubjectToAPlanSupportAgreementMemberago:PuertoRicoPublicBuildingsAuthorityMember2022-12-310001273813country:PRago:PuertoRicoResolvedExposuresSubjectToAPlanSupportAgreementMember2023-09-300001273813country:PRago:PuertoRicoResolvedExposuresSubjectToAPlanSupportAgreementMember2022-12-310001273813country:PRago:PuertoRicoMunicipalFinanceAuthorityMemberago:OtherPuertoRicoExposuresMember2023-09-300001273813country:PRago:PuertoRicoMunicipalFinanceAuthorityMemberago:OtherPuertoRicoExposuresMember2022-12-310001273813ago:PuertoRicoAqueductAndSewerAuthorityPRASAAndTheUniversityOfPuertoRicoUOfPRMembercountry:PRago:OtherPuertoRicoExposuresMember2023-09-300001273813ago:PuertoRicoAqueductAndSewerAuthorityPRASAAndTheUniversityOfPuertoRicoUOfPRMembercountry:PRago:OtherPuertoRicoExposuresMember2022-12-310001273813country:PRago:OtherPuertoRicoExposuresMember2023-09-300001273813country:PRago:OtherPuertoRicoExposuresMember2022-12-310001273813ago:PuertoRicoElectricPowerAuthorityMemberus-gaap:GuaranteeObligationsMember2023-06-262023-06-260001273813ago:PuertoRicoElectricPowerAuthorityMember2023-06-230001273813country:PRago:PuertoRicoHighwaysAndTransportationAuthorityMember2023-09-300001273813country:PRago:PublicCorporationsMember2023-09-300001273813ago:LifeInsuranceTransactionsMember2023-09-300001273813ago:LifeInsuranceTransactionsMember2022-12-310001273813sic:Z37212023-09-300001273813sic:Z37212022-12-310001273813us-gaap:GuaranteeTypeOtherMember2023-09-300001273813us-gaap:GuaranteeTypeOtherMember2022-12-310001273813srt:MaximumMemberago:LifeInsuranceTransactionsMember2023-09-300001273813sic:Z3721us-gaap:InternalNoninvestmentGradeMember2023-09-300001273813sic:Z3721us-gaap:InternalNoninvestmentGradeMember2022-12-310001273813ago:InsuranceContractsMember2023-09-300001273813ago:InsuranceContractsMember2022-12-310001273813ago:InsuranceContractsMember2023-07-012023-09-300001273813ago:InsuranceContractsMember2022-07-012022-09-300001273813ago:InsuranceContractsMember2023-01-012023-09-300001273813ago:InsuranceContractsMember2022-01-012022-09-300001273813ago:FinancialGuaranteeVariableInterestEntitiesMember2023-09-300001273813ago:FinancialGuaranteeVariableInterestEntitiesMember2022-12-310001273813ago:FinancialGuaranteeVariableInterestEntitiesMember2023-07-012023-09-300001273813ago:FinancialGuaranteeVariableInterestEntitiesMember2022-07-012022-09-300001273813ago:FinancialGuaranteeVariableInterestEntitiesMember2023-01-012023-09-300001273813ago:FinancialGuaranteeVariableInterestEntitiesMember2022-01-012022-09-300001273813ago:FinancialGuaranteeAccountedforasCreditDerivativesMember2023-09-300001273813ago:FinancialGuaranteeAccountedforasCreditDerivativesMember2022-12-310001273813ago:FinancialGuaranteeAccountedforasCreditDerivativesMember2023-07-012023-09-300001273813ago:FinancialGuaranteeAccountedforasCreditDerivativesMember2022-07-012022-09-300001273813ago:FinancialGuaranteeAccountedforasCreditDerivativesMember2023-01-012023-09-300001273813ago:FinancialGuaranteeAccountedforasCreditDerivativesMember2022-01-012022-09-300001273813srt:MinimumMember2023-01-012023-09-300001273813srt:MaximumMember2023-01-012023-09-300001273813srt:MinimumMember2022-01-012022-12-310001273813srt:MaximumMember2022-01-012022-12-3100012738132022-01-012022-12-310001273813country:US2023-01-012023-09-300001273813country:US2022-01-012022-12-310001273813country:USago:PublicFinanceMember2023-06-300001273813country:USago:PublicFinanceMember2023-07-012023-09-300001273813ago:PublicFinanceMemberus-gaap:NonUsMember2023-06-300001273813ago:PublicFinanceMemberus-gaap:NonUsMember2023-07-012023-09-300001273813ago:PublicFinanceMember2023-06-300001273813ago:PublicFinanceMember2023-07-012023-09-300001273813country:USus-gaap:ResidentialMortgageBackedSecuritiesMember2023-06-300001273813country:USus-gaap:ResidentialMortgageBackedSecuritiesMember2023-07-012023-09-300001273813ago:OtherStructuredFinanceMember2023-06-300001273813ago:OtherStructuredFinanceMember2023-07-012023-09-300001273813us-gaap:StructuredFinanceMember2023-06-300001273813us-gaap:StructuredFinanceMember2023-07-012023-09-300001273813country:USago:PublicFinanceMember2022-06-300001273813country:USago:PublicFinanceMember2022-07-012022-09-300001273813country:USago:PublicFinanceMember2022-09-300001273813ago:PublicFinanceMemberus-gaap:NonUsMember2022-06-300001273813ago:PublicFinanceMemberus-gaap:NonUsMember2022-07-012022-09-300001273813ago:PublicFinanceMemberus-gaap:NonUsMember2022-09-300001273813ago:PublicFinanceMember2022-06-300001273813ago:PublicFinanceMember2022-07-012022-09-300001273813ago:PublicFinanceMember2022-09-300001273813country:USus-gaap:ResidentialMortgageBackedSecuritiesMember2022-06-300001273813country:USus-gaap:ResidentialMortgageBackedSecuritiesMember2022-07-012022-09-300001273813country:USus-gaap:ResidentialMortgageBackedSecuritiesMember2022-09-300001273813ago:OtherStructuredFinanceMember2022-06-300001273813ago:OtherStructuredFinanceMember2022-07-012022-09-300001273813ago:OtherStructuredFinanceMember2022-09-300001273813us-gaap:StructuredFinanceMember2022-06-300001273813us-gaap:StructuredFinanceMember2022-07-012022-09-300001273813us-gaap:StructuredFinanceMember2022-09-300001273813country:USago:PublicFinanceMember2023-01-012023-09-300001273813ago:PublicFinanceMemberus-gaap:NonUsMember2023-01-012023-09-300001273813ago:PublicFinanceMember2023-01-012023-09-300001273813country:USus-gaap:ResidentialMortgageBackedSecuritiesMember2023-01-012023-09-300001273813ago:OtherStructuredFinanceMember2023-01-012023-09-300001273813us-gaap:StructuredFinanceMember2023-01-012023-09-300001273813country:USago:PublicFinanceMember2021-12-310001273813country:USago:PublicFinanceMember2022-01-012022-09-300001273813ago:PublicFinanceMemberus-gaap:NonUsMember2021-12-310001273813ago:PublicFinanceMemberus-gaap:NonUsMember2022-01-012022-09-300001273813ago:PublicFinanceMember2021-12-310001273813ago:PublicFinanceMember2022-01-012022-09-300001273813country:USus-gaap:ResidentialMortgageBackedSecuritiesMember2021-12-310001273813country:USus-gaap:ResidentialMortgageBackedSecuritiesMember2022-01-012022-09-300001273813ago:OtherStructuredFinanceMember2021-12-310001273813ago:OtherStructuredFinanceMember2022-01-012022-09-300001273813us-gaap:StructuredFinanceMember2021-12-310001273813us-gaap:StructuredFinanceMember2022-01-012022-09-300001273813country:USus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FirstMortgageMember2023-07-012023-09-300001273813country:USus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FirstMortgageMember2022-07-012022-09-300001273813country:USus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FirstMortgageMember2023-01-012023-09-300001273813country:USus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FirstMortgageMember2022-01-012022-09-300001273813country:USus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:SecondMortgageMember2023-07-012023-09-300001273813country:USus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:SecondMortgageMember2022-07-012022-09-300001273813country:USus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:SecondMortgageMember2023-01-012023-09-300001273813country:USus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:SecondMortgageMember2022-01-012022-09-30ago:Payment0001273813ago:AltAMortgageandPrimeMemberMemberago:FinancingReceivableDelinquentModifiedinPrevious12MonthsMember2023-09-300001273813ago:AltAMortgageandPrimeMemberMemberago:FinancingReceivableDelinquentModifiedinPrevious12MonthsMember2022-12-310001273813us-gaap:AdjustableRateResidentialMortgageMemberago:FinancingReceivableDelinquentModifiedinPrevious12MonthsMember2023-09-300001273813us-gaap:AdjustableRateResidentialMortgageMemberago:FinancingReceivableDelinquentModifiedinPrevious12MonthsMember2022-12-310001273813ago:FinancingReceivableSubprimeMemberago:FinancingReceivableDelinquentModifiedinPrevious12MonthsMember2023-09-300001273813ago:FinancingReceivableSubprimeMemberago:FinancingReceivableDelinquentModifiedinPrevious12MonthsMember2022-12-310001273813ago:AltAMortgageandPrimeMemberMemberus-gaap:FinancingReceivables30To59DaysPastDueMember2023-09-300001273813ago:AltAMortgageandPrimeMemberMemberus-gaap:FinancingReceivables30To59DaysPastDueMember2022-12-310001273813us-gaap:AdjustableRateResidentialMortgageMemberus-gaap:FinancingReceivables30To59DaysPastDueMember2023-09-300001273813us-gaap:AdjustableRateResidentialMortgageMemberus-gaap:FinancingReceivables30To59DaysPastDueMember2022-12-310001273813ago:FinancingReceivableSubprimeMemberus-gaap:FinancingReceivables30To59DaysPastDueMember2023-09-300001273813ago:FinancingReceivableSubprimeMemberus-gaap:FinancingReceivables30To59DaysPastDueMember2022-12-310001273813ago:AltAMortgageandPrimeMemberMemberus-gaap:FinancingReceivables60To89DaysPastDueMember2023-09-300001273813ago:AltAMortgageandPrimeMemberMemberus-gaap:FinancingReceivables60To89DaysPastDueMember2022-12-310001273813us-gaap:AdjustableRateResidentialMortgageMemberus-gaap:FinancingReceivables60To89DaysPastDueMember2023-09-300001273813us-gaap:AdjustableRateResidentialMortgageMemberus-gaap:FinancingReceivables60To89DaysPastDueMember2022-12-310001273813ago:FinancingReceivableSubprimeMemberus-gaap:FinancingReceivables60To89DaysPastDueMember2023-09-300001273813ago:FinancingReceivableSubprimeMemberus-gaap:FinancingReceivables60To89DaysPastDueMember2022-12-310001273813ago:AltAMortgageandPrimeMemberMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2023-09-300001273813ago:AltAMortgageandPrimeMemberMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2022-12-310001273813us-gaap:AdjustableRateResidentialMortgageMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2023-09-300001273813us-gaap:AdjustableRateResidentialMortgageMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2022-12-310001273813ago:FinancingReceivableSubprimeMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2023-09-300001273813ago:FinancingReceivableSubprimeMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2022-12-310001273813ago:AltAMortgageandPrimeMemberMemberago:FinancingReceivablesBankruptcyMember2023-09-300001273813ago:AltAMortgageandPrimeMemberMemberago:FinancingReceivablesBankruptcyMember2022-12-310001273813us-gaap:AdjustableRateResidentialMortgageMemberago:FinancingReceivablesBankruptcyMember2023-09-300001273813us-gaap:AdjustableRateResidentialMortgageMemberago:FinancingReceivablesBankruptcyMember2022-12-310001273813ago:FinancingReceivableSubprimeMemberago:FinancingReceivablesBankruptcyMember2023-09-300001273813ago:FinancingReceivableSubprimeMemberago:FinancingReceivablesBankruptcyMember2022-12-310001273813ago:AltAMortgageandPrimeMemberMemberago:FinancingReceivableForeclosureMember2023-09-300001273813ago:AltAMortgageandPrimeMemberMemberago:FinancingReceivableForeclosureMember2022-12-310001273813ago:FinancingReceivableForeclosureMemberus-gaap:AdjustableRateResidentialMortgageMember2023-09-300001273813ago:FinancingReceivableForeclosureMemberus-gaap:AdjustableRateResidentialMortgageMember2022-12-310001273813ago:FinancingReceivableForeclosureMemberago:FinancingReceivableSubprimeMember2023-09-300001273813ago:FinancingReceivableForeclosureMemberago:FinancingReceivableSubprimeMember2022-12-310001273813ago:FinancingReceivableRealEstateOwnedMember2023-09-300001273813ago:FinancingReceivableRealEstateOwnedMember2022-12-310001273813ago:BaseScenarioMembercountry:USus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FirstMortgageMember2023-01-012023-09-300001273813ago:BaseScenarioMembercountry:USus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FirstMortgageMember2023-09-300001273813srt:MinimumMembercountry:USus-gaap:ResidentialMortgageBackedSecuritiesMemberago:AltAMortgageandPrimeMemberMember2023-09-300001273813country:USsrt:MaximumMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberago:AltAMortgageandPrimeMemberMember2023-09-300001273813country:USsrt:WeightedAverageMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberago:AltAMortgageandPrimeMemberMember2023-09-300001273813srt:MinimumMembercountry:USus-gaap:ResidentialMortgageBackedSecuritiesMemberago:AltAMortgageandPrimeMemberMember2022-12-310001273813country:USsrt:MaximumMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberago:AltAMortgageandPrimeMemberMember2022-12-310001273813country:USsrt:WeightedAverageMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberago:AltAMortgageandPrimeMemberMember2022-12-310001273813country:USago:LoanOriginationPeriodOneMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberago:AltAMortgageandPrimeMemberMember2023-09-300001273813country:USago:LoanOriginationPeriodOneMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberago:AltAMortgageandPrimeMemberMember2022-12-310001273813country:USus-gaap:ResidentialMortgageBackedSecuritiesMemberago:AltAMortgageandPrimeMemberMemberago:LoanOriginationPeriodTwoMember2023-09-300001273813country:USus-gaap:ResidentialMortgageBackedSecuritiesMemberago:AltAMortgageandPrimeMemberMemberago:LoanOriginationPeriodTwoMember2022-12-310001273813country:USago:LoanOriginationPeriodThreeMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberago:AltAMortgageandPrimeMemberMember2023-09-300001273813country:USago:LoanOriginationPeriodThreeMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberago:AltAMortgageandPrimeMemberMember2022-12-310001273813srt:MinimumMembercountry:USus-gaap:AdjustableRateResidentialMortgageMemberus-gaap:ResidentialMortgageBackedSecuritiesMember2023-09-300001273813country:USsrt:MaximumMemberus-gaap:AdjustableRateResidentialMortgageMemberus-gaap:ResidentialMortgageBackedSecuritiesMember2023-09-300001273813country:USsrt:WeightedAverageMemberus-gaap:AdjustableRateResidentialMortgageMemberus-gaap:ResidentialMortgageBackedSecuritiesMember2023-09-300001273813srt:MinimumMembercountry:USus-gaap:AdjustableRateResidentialMortgageMemberus-gaap:ResidentialMortgageBackedSecuritiesMember2022-12-310001273813country:USsrt:MaximumMemberus-gaap:AdjustableRateResidentialMortgageMemberus-gaap:ResidentialMortgageBackedSecuritiesMember2022-12-310001273813country:USsrt:WeightedAverageMemberus-gaap:AdjustableRateResidentialMortgageMemberus-gaap:ResidentialMortgageBackedSecuritiesMember2022-12-310001273813country:USago:LoanOriginationPeriodOneMemberus-gaap:AdjustableRateResidentialMortgageMemberus-gaap:ResidentialMortgageBackedSecuritiesMember2023-09-300001273813country:USago:LoanOriginationPeriodOneMemberus-gaap:AdjustableRateResidentialMortgageMemberus-gaap:ResidentialMortgageBackedSecuritiesMember2022-12-310001273813country:USus-gaap:AdjustableRateResidentialMortgageMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberago:LoanOriginationPeriodTwoMember2023-09-300001273813country:USus-gaap:AdjustableRateResidentialMortgageMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberago:LoanOriginationPeriodTwoMember2022-12-310001273813country:USago:LoanOriginationPeriodThreeMemberus-gaap:AdjustableRateResidentialMortgageMemberus-gaap:ResidentialMortgageBackedSecuritiesMember2023-09-300001273813country:USago:LoanOriginationPeriodThreeMemberus-gaap:AdjustableRateResidentialMortgageMemberus-gaap:ResidentialMortgageBackedSecuritiesMember2022-12-310001273813srt:MinimumMembercountry:USus-gaap:ResidentialMortgageBackedSecuritiesMemberago:FinancingReceivableSubprimeMember2023-09-300001273813country:USsrt:MaximumMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberago:FinancingReceivableSubprimeMember2023-09-300001273813country:USsrt:WeightedAverageMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberago:FinancingReceivableSubprimeMember2023-09-300001273813srt:MinimumMembercountry:USus-gaap:ResidentialMortgageBackedSecuritiesMemberago:FinancingReceivableSubprimeMember2022-12-310001273813country:USsrt:MaximumMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberago:FinancingReceivableSubprimeMember2022-12-310001273813country:USsrt:WeightedAverageMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberago:FinancingReceivableSubprimeMember2022-12-310001273813country:USago:LoanOriginationPeriodOneMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberago:FinancingReceivableSubprimeMember2023-09-300001273813country:USago:LoanOriginationPeriodOneMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberago:FinancingReceivableSubprimeMember2022-12-310001273813country:USus-gaap:ResidentialMortgageBackedSecuritiesMemberago:FinancingReceivableSubprimeMemberago:LoanOriginationPeriodTwoMember2023-09-300001273813country:USus-gaap:ResidentialMortgageBackedSecuritiesMemberago:FinancingReceivableSubprimeMemberago:LoanOriginationPeriodTwoMember2022-12-310001273813country:USago:LoanOriginationPeriodThreeMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberago:FinancingReceivableSubprimeMember2023-09-300001273813country:USago:LoanOriginationPeriodThreeMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberago:FinancingReceivableSubprimeMember2022-12-310001273813country:USus-gaap:ResidentialMortgageBackedSecuritiesMemberago:BaseScenarioMemberus-gaap:FirstMortgageMember2023-07-012023-09-300001273813country:USago:MoreStressfulEnvironmentMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FirstMortgageMember2023-01-012023-03-310001273813country:USus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FirstMortgageMemberago:LeastStressfulEnvironmentMember2023-01-012023-03-310001273813country:USus-gaap:ResidentialMortgageBackedSecuritiesMemberago:BaseScenarioMemberus-gaap:FirstMortgageMember2023-01-012023-06-300001273813us-gaap:FirstMortgageMember2023-01-012023-09-300001273813country:USus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FirstMortgageMember2023-09-30ago:scenario0001273813country:USus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FirstMortgageMember2022-01-012022-12-310001273813country:USus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FirstMortgageMemberago:MoreStressfulEnvironmentMember2023-01-012023-09-300001273813country:USago:LeastStressfulEnvironmentMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FirstMortgageMember2023-01-012023-09-300001273813country:USus-gaap:HomeEquityMember2023-01-012023-09-300001273813country:USago:HomeEquityLineOfCreditInsuredMember2023-01-012023-09-300001273813country:USus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:SecondMortgageMember2023-09-300001273813country:USus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:SecondMortgageMember2022-12-310001273813country:USus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:SecondMortgageMember2023-06-300001273813country:USago:MoreStressfulEnvironmentMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:SecondMortgageMember2023-01-012023-09-300001273813country:USus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:SecondMortgageMemberago:LeastStressfulEnvironmentMember2023-01-012023-09-300001273813us-gaap:SecondMortgageMember2023-01-012023-09-300001273813country:USago:HomeEquityLineofCreditandClosedendMortgageMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:SecondMortgageMember2023-09-30ago:Curve0001273813srt:MinimumMembercountry:USus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:HomeEquityMember2023-09-300001273813country:USsrt:MaximumMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:HomeEquityMember2023-09-300001273813country:USsrt:WeightedAverageMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:HomeEquityMember2023-09-300001273813srt:MinimumMembercountry:USus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:HomeEquityMember2022-12-310001273813country:USsrt:MaximumMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:HomeEquityMember2022-12-310001273813country:USsrt:WeightedAverageMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:HomeEquityMember2022-12-310001273813country:USago:FinancingReceivableDelinquentModifiedinPrevious12MonthsMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:HomeEquityMember2023-09-300001273813country:USago:FinancingReceivableDelinquentModifiedinPrevious12MonthsMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:HomeEquityMember2022-12-310001273813country:USus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FinancingReceivables30To59DaysPastDueMemberus-gaap:HomeEquityMember2023-09-300001273813country:USus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FinancingReceivables30To59DaysPastDueMemberus-gaap:HomeEquityMember2022-12-310001273813country:USus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FinancingReceivables60To89DaysPastDueMemberus-gaap:HomeEquityMember2023-09-300001273813country:USus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FinancingReceivables60To89DaysPastDueMemberus-gaap:HomeEquityMember2022-12-310001273813country:USus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:HomeEquityMember2023-09-300001273813country:USus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:HomeEquityMember2022-12-310001273813country:USus-gaap:ResidentialMortgageBackedSecuritiesMemberago:FinancingReceivablesBankruptcyMemberus-gaap:HomeEquityMember2023-09-300001273813country:USus-gaap:ResidentialMortgageBackedSecuritiesMemberago:FinancingReceivablesBankruptcyMemberus-gaap:HomeEquityMember2022-12-310001273813ago:FinancingReceivableForeclosureMembercountry:USus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:HomeEquityMember2023-09-300001273813ago:FinancingReceivableForeclosureMembercountry:USus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:HomeEquityMember2022-12-310001273813country:USus-gaap:ResidentialMortgageBackedSecuritiesMemberago:FinancingReceivableRealEstateOwnedMemberus-gaap:HomeEquityMember2023-09-300001273813country:USus-gaap:ResidentialMortgageBackedSecuritiesMemberago:FinancingReceivableRealEstateOwnedMemberus-gaap:HomeEquityMember2022-12-310001273813country:USus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:HomeEquityMember2023-09-300001273813country:USus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:HomeEquityMember2022-12-310001273813country:USus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:SecondMortgageMemberago:MoreStressfulEnvironmentMember2023-01-012023-09-300001273813country:USus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:SecondMortgageMemberago:MoreStressfulEnvironmentMemberus-gaap:HomeEquityMember2023-01-012023-09-300001273813country:USago:LeastStressfulEnvironmentMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:SecondMortgageMember2023-01-012023-09-300001273813country:USago:LeastStressfulEnvironmentMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:SecondMortgageMemberus-gaap:HomeEquityMember2023-01-012023-09-300001273813ago:FinancialGuaranteeInsuranceAndOtherProductLineMember2022-01-012022-09-300001273813us-gaap:PremiumsReceivableMemberago:ForeignCurrencyConcentrationRiskMemberus-gaap:PremiumsReceivableMember2023-01-012023-09-300001273813us-gaap:PremiumsReceivableMemberago:ForeignCurrencyConcentrationRiskMemberus-gaap:PremiumsReceivableMember2022-01-012022-12-310001273813srt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMember2023-09-300001273813us-gaap:FinancialGuaranteeInsuranceSegmentMember2023-09-300001273813ago:FinancialGuaranteePoliciesPaidinInstallmentsMember2023-09-300001273813ago:FinancialGuaranteePoliciesPaidinInstallmentsMember2022-12-310001273813ago:FinancialGuaranteePoliciesPaidinInstallmentsMember2023-01-012023-09-300001273813ago:FinancialGuaranteePoliciesPaidinInstallmentsMember2022-01-012022-12-310001273813country:USago:FinancialGuaranteeInsuranceAndOtherProductLineMemberago:PublicFinanceMember2023-09-300001273813country:USago:FinancialGuaranteeInsuranceAndOtherProductLineMemberago:PublicFinanceMember2022-12-310001273813ago:NonUnitedStatesMemberago:FinancialGuaranteeInsuranceAndOtherProductLineMemberago:PublicFinanceMember2023-09-300001273813ago:NonUnitedStatesMemberago:FinancialGuaranteeInsuranceAndOtherProductLineMemberago:PublicFinanceMember2022-12-310001273813ago:FinancialGuaranteeInsuranceAndOtherProductLineMemberago:PublicFinanceMember2023-09-300001273813ago:FinancialGuaranteeInsuranceAndOtherProductLineMemberago:PublicFinanceMember2022-12-310001273813country:USago:FinancialGuaranteeInsuranceAndOtherProductLineMemberus-gaap:ResidentialMortgageBackedSecuritiesMember2023-09-300001273813country:USago:FinancialGuaranteeInsuranceAndOtherProductLineMemberus-gaap:ResidentialMortgageBackedSecuritiesMember2022-12-310001273813ago:OtherStructuredFinanceMemberago:FinancialGuaranteeInsuranceAndOtherProductLineMember2023-09-300001273813ago:OtherStructuredFinanceMemberago:FinancialGuaranteeInsuranceAndOtherProductLineMember2022-12-310001273813us-gaap:StructuredFinanceMemberago:FinancialGuaranteeInsuranceAndOtherProductLineMember2023-09-300001273813us-gaap:StructuredFinanceMemberago:FinancialGuaranteeInsuranceAndOtherProductLineMember2022-12-310001273813ago:FinancialGuaranteeInsuranceAndOtherProductLineMember2023-09-300001273813country:USago:FinancialGuaranteeInsuranceAndOtherProductLineMemberago:PublicFinanceMember2023-07-012023-09-300001273813country:USago:FinancialGuaranteeInsuranceAndOtherProductLineMemberago:PublicFinanceMember2022-07-012022-09-300001273813country:USago:FinancialGuaranteeInsuranceAndOtherProductLineMemberago:PublicFinanceMember2023-01-012023-09-300001273813country:USago:FinancialGuaranteeInsuranceAndOtherProductLineMemberago:PublicFinanceMember2022-01-012022-09-300001273813ago:NonUnitedStatesMemberago:FinancialGuaranteeInsuranceAndOtherProductLineMemberago:PublicFinanceMember2023-07-012023-09-300001273813ago:NonUnitedStatesMemberago:FinancialGuaranteeInsuranceAndOtherProductLineMemberago:PublicFinanceMember2022-07-012022-09-300001273813ago:NonUnitedStatesMemberago:FinancialGuaranteeInsuranceAndOtherProductLineMemberago:PublicFinanceMember2023-01-012023-09-300001273813ago:NonUnitedStatesMemberago:FinancialGuaranteeInsuranceAndOtherProductLineMemberago:PublicFinanceMember2022-01-012022-09-300001273813ago:FinancialGuaranteeInsuranceAndOtherProductLineMemberago:PublicFinanceMember2023-07-012023-09-300001273813ago:FinancialGuaranteeInsuranceAndOtherProductLineMemberago:PublicFinanceMember2022-07-012022-09-300001273813ago:FinancialGuaranteeInsuranceAndOtherProductLineMemberago:PublicFinanceMember2023-01-012023-09-300001273813ago:FinancialGuaranteeInsuranceAndOtherProductLineMemberago:PublicFinanceMember2022-01-012022-09-300001273813country:USago:FinancialGuaranteeInsuranceAndOtherProductLineMemberus-gaap:ResidentialMortgageBackedSecuritiesMember2023-07-012023-09-300001273813country:USago:FinancialGuaranteeInsuranceAndOtherProductLineMemberus-gaap:ResidentialMortgageBackedSecuritiesMember2022-07-012022-09-300001273813country:USago:FinancialGuaranteeInsuranceAndOtherProductLineMemberus-gaap:ResidentialMortgageBackedSecuritiesMember2023-01-012023-09-300001273813country:USago:FinancialGuaranteeInsuranceAndOtherProductLineMemberus-gaap:ResidentialMortgageBackedSecuritiesMember2022-01-012022-09-300001273813ago:OtherStructuredFinanceMemberago:FinancialGuaranteeInsuranceAndOtherProductLineMember2023-07-012023-09-300001273813ago:OtherStructuredFinanceMemberago:FinancialGuaranteeInsuranceAndOtherProductLineMember2022-07-012022-09-300001273813ago:OtherStructuredFinanceMemberago:FinancialGuaranteeInsuranceAndOtherProductLineMember2023-01-012023-09-300001273813ago:OtherStructuredFinanceMemberago:FinancialGuaranteeInsuranceAndOtherProductLineMember2022-01-012022-09-300001273813us-gaap:StructuredFinanceMemberago:FinancialGuaranteeInsuranceAndOtherProductLineMember2023-07-012023-09-300001273813us-gaap:StructuredFinanceMemberago:FinancialGuaranteeInsuranceAndOtherProductLineMember2022-07-012022-09-300001273813us-gaap:StructuredFinanceMemberago:FinancialGuaranteeInsuranceAndOtherProductLineMember2023-01-012023-09-300001273813us-gaap:StructuredFinanceMemberago:FinancialGuaranteeInsuranceAndOtherProductLineMember2022-01-012022-09-300001273813ago:InternalNoninvestmentGradeLevel1Membersrt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMemberus-gaap:InternalNoninvestmentGradeMember2023-09-300001273813ago:InternalNoninvestmentGradeLevel2Membersrt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMemberus-gaap:InternalNoninvestmentGradeMember2023-09-300001273813ago:InternalNoninvestmentGradeLevel3Membersrt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMemberus-gaap:InternalNoninvestmentGradeMember2023-09-300001273813srt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMemberus-gaap:InternalNoninvestmentGradeMember2023-09-300001273813ago:InternalNoninvestmentGradeLevel1Membersrt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMemberus-gaap:InternalNoninvestmentGradeMember2023-01-012023-09-300001273813ago:InternalNoninvestmentGradeLevel2Membersrt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMemberus-gaap:InternalNoninvestmentGradeMember2023-01-012023-09-300001273813ago:InternalNoninvestmentGradeLevel3Membersrt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMemberus-gaap:InternalNoninvestmentGradeMember2023-01-012023-09-300001273813srt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMemberus-gaap:InternalNoninvestmentGradeMember2023-01-012023-09-300001273813ago:InternalNoninvestmentGradeLevel1Membersrt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMemberus-gaap:InternalNoninvestmentGradeMember2022-12-310001273813ago:InternalNoninvestmentGradeLevel2Membersrt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMemberus-gaap:InternalNoninvestmentGradeMember2022-12-310001273813ago:InternalNoninvestmentGradeLevel3Membersrt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMemberus-gaap:InternalNoninvestmentGradeMember2022-12-310001273813srt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMemberus-gaap:InternalNoninvestmentGradeMember2022-12-310001273813ago:InternalNoninvestmentGradeLevel1Membersrt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMemberus-gaap:InternalNoninvestmentGradeMember2022-01-012022-12-310001273813ago:InternalNoninvestmentGradeLevel2Membersrt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMemberus-gaap:InternalNoninvestmentGradeMember2022-01-012022-12-310001273813ago:InternalNoninvestmentGradeLevel3Membersrt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMemberus-gaap:InternalNoninvestmentGradeMember2022-01-012022-12-310001273813srt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMemberus-gaap:InternalNoninvestmentGradeMember2022-01-012022-12-310001273813ago:NonUnitedStatesMemberago:PublicFinanceMember2023-09-300001273813ago:NonUnitedStatesMemberago:PublicFinanceMember2022-12-310001273813ago:NonUnitedStatesMemberus-gaap:StructuredFinanceMember2023-09-300001273813ago:NonUnitedStatesMemberus-gaap:StructuredFinanceMember2022-12-310001273813ago:InternalCreditRatingAAAMemberago:DerivativeAggregateNotionalAmountMemberus-gaap:CreditConcentrationRiskMember2023-09-300001273813ago:InternalCreditRatingAAAMemberago:DerivativeAggregateNotionalAmountMemberus-gaap:CreditConcentrationRiskMember2023-01-012023-09-300001273813ago:InternalCreditRatingAAAMemberago:DerivativeAggregateNotionalAmountMemberus-gaap:CreditConcentrationRiskMember2022-12-310001273813ago:InternalCreditRatingAAAMemberago:DerivativeAggregateNotionalAmountMemberus-gaap:CreditConcentrationRiskMember2022-01-012022-12-310001273813ago:InternalCreditRatingAAMemberago:DerivativeAggregateNotionalAmountMemberus-gaap:CreditConcentrationRiskMember2023-09-300001273813ago:InternalCreditRatingAAMemberago:DerivativeAggregateNotionalAmountMemberus-gaap:CreditConcentrationRiskMember2023-01-012023-09-300001273813ago:InternalCreditRatingAAMemberago:DerivativeAggregateNotionalAmountMemberus-gaap:CreditConcentrationRiskMember2022-12-310001273813ago:InternalCreditRatingAAMemberago:DerivativeAggregateNotionalAmountMemberus-gaap:CreditConcentrationRiskMember2022-01-012022-12-310001273813ago:InternalCreditRatingAMemberago:DerivativeAggregateNotionalAmountMemberus-gaap:CreditConcentrationRiskMember2023-09-300001273813ago:InternalCreditRatingAMemberago:DerivativeAggregateNotionalAmountMemberus-gaap:CreditConcentrationRiskMember2023-01-012023-09-300001273813ago:InternalCreditRatingAMemberago:DerivativeAggregateNotionalAmountMemberus-gaap:CreditConcentrationRiskMember2022-12-310001273813ago:InternalCreditRatingAMemberago:DerivativeAggregateNotionalAmountMemberus-gaap:CreditConcentrationRiskMember2022-01-012022-12-310001273813ago:InternalCreditRatingBBBMemberago:DerivativeAggregateNotionalAmountMemberus-gaap:CreditConcentrationRiskMember2023-09-300001273813ago:InternalCreditRatingBBBMemberago:DerivativeAggregateNotionalAmountMemberus-gaap:CreditConcentrationRiskMember2023-01-012023-09-300001273813ago:InternalCreditRatingBBBMemberago:DerivativeAggregateNotionalAmountMemberus-gaap:CreditConcentrationRiskMember2022-12-310001273813ago:InternalCreditRatingBBBMemberago:DerivativeAggregateNotionalAmountMemberus-gaap:CreditConcentrationRiskMember2022-01-012022-12-310001273813ago:DerivativeAggregateNotionalAmountMemberus-gaap:CreditConcentrationRiskMemberus-gaap:InternalNoninvestmentGradeMember2023-09-300001273813ago:DerivativeAggregateNotionalAmountMemberus-gaap:CreditConcentrationRiskMemberus-gaap:InternalNoninvestmentGradeMember2023-01-012023-09-300001273813ago:DerivativeAggregateNotionalAmountMemberus-gaap:CreditConcentrationRiskMemberus-gaap:InternalNoninvestmentGradeMember2022-12-310001273813ago:DerivativeAggregateNotionalAmountMemberus-gaap:CreditConcentrationRiskMemberus-gaap:InternalNoninvestmentGradeMember2022-01-012022-12-310001273813ago:DerivativeAggregateNotionalAmountMemberus-gaap:CreditConcentrationRiskMember2023-09-300001273813ago:DerivativeAggregateNotionalAmountMemberus-gaap:CreditConcentrationRiskMember2023-01-012023-09-300001273813ago:DerivativeAggregateNotionalAmountMemberus-gaap:CreditConcentrationRiskMember2022-12-310001273813ago:DerivativeAggregateNotionalAmountMemberus-gaap:CreditConcentrationRiskMember2022-01-012022-12-310001273813ago:AssuredGuarantyCorpMemberago:CreditRiskContract5YearSpreadMember2023-09-300001273813ago:AssuredGuarantyCorpMemberago:CreditRiskContract5YearSpreadMember2022-12-310001273813ago:AssuredGuarantyCorpMemberago:CreditRiskContract5YearSpreadMember2022-09-300001273813ago:AssuredGuarantyCorpMemberago:CreditRiskContract5YearSpreadMember2021-12-310001273813ago:AssuredGuarantyCorpMemberago:CreditRiskContract1YearSpreadMember2023-09-300001273813ago:AssuredGuarantyCorpMemberago:CreditRiskContract1YearSpreadMember2022-12-310001273813ago:AssuredGuarantyCorpMemberago:CreditRiskContract1YearSpreadMember2022-09-300001273813ago:AssuredGuarantyCorpMemberago:CreditRiskContract1YearSpreadMember2021-12-31ago:manager0001273813ago:SecuritiesManagedExternallyMember2023-09-300001273813ago:SecuritiesManagedExternallyMember2022-12-310001273813ago:InsuredFinancialObligationsLossMitigationSecuritiesMember2023-09-300001273813ago:InsuredFinancialObligationsLossMitigationSecuritiesMember2022-12-310001273813ago:RecoveryBondsMember2023-09-300001273813ago:RecoveryBondsMember2022-12-310001273813ago:OtherMember2023-09-300001273813ago:OtherMember2022-12-310001273813ago:SoundPointCapitalManagementLPMember2023-09-300001273813ago:SoundPointCapitalManagementLPMember2022-12-310001273813ago:EquityMethodInvestmentsOtherMember2023-09-300001273813ago:EquityMethodInvestmentsOtherMember2022-12-310001273813ago:OtherInvestmentsInternallyManagedMember2023-09-300001273813ago:OtherInvestmentsInternallyManagedMember2022-12-310001273813ago:NotInternallyRatedMember2023-09-300001273813ago:NotInternallyRatedMember2022-12-310001273813ago:SecuritiesManagedExternallyMemberago:InternalMember2023-09-300001273813ago:SecuritiesManagedExternallyMemberago:InternalMember2022-12-310001273813ago:AGCAndAGMMemberago:RecoveryBondsMember2023-08-310001273813ago:AGCAndAGMMemberago:ContingentValueInstrumentsMember2023-08-310001273813ago:OtherMemberago:AssuredIMMember2023-09-300001273813ago:OtherMemberago:AssuredIMMember2022-12-310001273813ago:FutureEquityInvestmentsMemberago:AlternativeInvestmentMember2023-09-300001273813ago:FutureEquityInvestmentsMemberago:AlternativeInvestmentMemberago:AssuredGuarantySubsidiariesMember2023-09-300001273813ago:AlternativeInvestmentMemberago:AssuredGuarantyAssetStrategiesLLCMemberus-gaap:EquityMethodInvestmentsMember2023-01-012023-09-300001273813ago:AlternativeInvestmentMemberago:AssuredGuarantyAssetStrategiesLLCMemberus-gaap:EquityMethodInvestmentsMember2023-09-30ago:fund0001273813us-gaap:USStatesAndPoliticalSubdivisionsMember2023-09-300001273813us-gaap:USTreasuryAndGovernmentMember2023-09-300001273813us-gaap:CorporateDebtSecuritiesMember2023-09-300001273813us-gaap:ResidentialMortgageBackedSecuritiesMember2023-09-300001273813us-gaap:CommercialMortgageBackedSecuritiesMember2023-09-300001273813us-gaap:CollateralizedLoanObligationsMember2023-09-300001273813ago:OtherAssetBackedSecuritiesMember2023-09-300001273813us-gaap:ForeignGovernmentDebtSecuritiesMember2023-09-300001273813us-gaap:USStatesAndPoliticalSubdivisionsMember2022-12-310001273813us-gaap:USTreasuryAndGovernmentMember2022-12-310001273813us-gaap:CorporateDebtSecuritiesMember2022-12-310001273813us-gaap:ResidentialMortgageBackedSecuritiesMember2022-12-310001273813us-gaap:CommercialMortgageBackedSecuritiesMember2022-12-310001273813us-gaap:CollateralizedLoanObligationsMember2022-12-310001273813ago:OtherAssetBackedSecuritiesMember2022-12-310001273813us-gaap:ForeignGovernmentDebtSecuritiesMember2022-12-310001273813us-gaap:USStatesAndPoliticalSubdivisionsMember2023-09-300001273813us-gaap:USTreasuryAndGovernmentMember2023-09-300001273813us-gaap:CorporateDebtSecuritiesMember2023-09-300001273813us-gaap:ResidentialMortgageBackedSecuritiesMember2023-09-300001273813us-gaap:CommercialMortgageBackedSecuritiesMember2023-09-300001273813us-gaap:CollateralizedLoanObligationsMember2023-09-300001273813us-gaap:OtherInvestmentsMember2023-09-300001273813us-gaap:ForeignGovernmentDebtSecuritiesMember2023-09-30ago:Security0001273813us-gaap:USStatesAndPoliticalSubdivisionsMember2022-12-310001273813us-gaap:USTreasuryAndGovernmentMember2022-12-310001273813us-gaap:CorporateDebtSecuritiesMember2022-12-310001273813us-gaap:ResidentialMortgageBackedSecuritiesMember2022-12-310001273813us-gaap:CommercialMortgageBackedSecuritiesMember2022-12-310001273813us-gaap:CollateralizedLoanObligationsMember2022-12-310001273813us-gaap:OtherInvestmentsMember2022-12-310001273813us-gaap:ForeignGovernmentDebtSecuritiesMember2022-12-310001273813ago:AssuredGuarantySubsidiariesMember2023-09-300001273813ago:AssuredGuarantySubsidiariesMember2022-12-310001273813ago:SecuritiesManagedExternallyMember2023-07-012023-09-300001273813ago:SecuritiesManagedExternallyMember2022-07-012022-09-300001273813ago:SecuritiesManagedExternallyMember2023-01-012023-09-300001273813ago:SecuritiesManagedExternallyMember2022-01-012022-09-300001273813ago:InsuredFinancialObligationsLossMitigationSecuritiesMember2023-07-012023-09-300001273813ago:InsuredFinancialObligationsLossMitigationSecuritiesMember2022-07-012022-09-300001273813ago:InsuredFinancialObligationsLossMitigationSecuritiesMember2023-01-012023-09-300001273813ago:InsuredFinancialObligationsLossMitigationSecuritiesMember2022-01-012022-09-300001273813ago:RecoveryBondsMember2023-07-012023-09-300001273813ago:RecoveryBondsMember2022-07-012022-09-300001273813ago:RecoveryBondsMember2023-01-012023-09-300001273813ago:RecoveryBondsMember2022-01-012022-09-300001273813ago:OtherMember2023-07-012023-09-300001273813ago:OtherMember2022-07-012022-09-300001273813ago:OtherMember2023-01-012023-09-300001273813ago:OtherMember2022-01-012022-09-300001273813us-gaap:ShortTermInvestmentsMember2023-07-012023-09-300001273813us-gaap:ShortTermInvestmentsMember2022-07-012022-09-300001273813us-gaap:ShortTermInvestmentsMember2023-01-012023-09-300001273813us-gaap:ShortTermInvestmentsMember2022-01-012022-09-300001273813us-gaap:OtherInvestmentsMember2023-07-012023-09-300001273813us-gaap:OtherInvestmentsMember2022-07-012022-09-300001273813us-gaap:OtherInvestmentsMember2023-01-012023-09-300001273813us-gaap:OtherInvestmentsMember2022-01-012022-09-300001273813ago:FinancialGuarantyVariableInterestEntitiesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:StructuredFinanceAndOtherMember2023-09-30ago:Entity0001273813ago:FinancialGuarantyVariableInterestEntitiesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:StructuredFinanceAndOtherMember2022-12-310001273813us-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:PuertoRicoTrustsMember2023-09-300001273813ago:FinancialGuarantyVariableInterestEntitiesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:PuertoRicoTrustsMember2023-09-30ago:entity0001273813ago:FinancialGuarantyVariableInterestEntitiesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:PuertoRicoTrustsMember2022-12-310001273813ago:FinancialGuarantyVariableInterestEntitiesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2023-09-300001273813ago:FinancialGuarantyVariableInterestEntitiesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMembercountry:USus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FirstMortgageMember2023-09-300001273813ago:FinancialGuarantyVariableInterestEntitiesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMembercountry:USus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FirstMortgageMember2022-12-310001273813ago:FinancialGuarantyVariableInterestEntitiesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMembercountry:USus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:SecondMortgageMember2023-09-300001273813ago:FinancialGuarantyVariableInterestEntitiesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMembercountry:USus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:SecondMortgageMember2022-12-310001273813ago:FinancialGuarantyVariableInterestEntitiesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberus-gaap:UnderlyingOtherMember2023-09-300001273813ago:FinancialGuarantyVariableInterestEntitiesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberus-gaap:UnderlyingOtherMember2022-12-310001273813ago:FinancialGuarantyVariableInterestEntitiesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2022-12-310001273813us-gaap:VariableInterestEntityPrimaryBeneficiaryMemberus-gaap:RecourseMembercountry:USago:FinancialGuarantyVariableInterestEntitiesMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FirstMortgageMember2023-09-300001273813us-gaap:VariableInterestEntityPrimaryBeneficiaryMemberus-gaap:RecourseMembercountry:USago:FinancialGuarantyVariableInterestEntitiesMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FirstMortgageMember2022-12-310001273813us-gaap:VariableInterestEntityPrimaryBeneficiaryMemberus-gaap:RecourseMembercountry:USago:FinancialGuarantyVariableInterestEntitiesMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:SecondMortgageMember2023-09-300001273813us-gaap:VariableInterestEntityPrimaryBeneficiaryMemberus-gaap:RecourseMembercountry:USago:FinancialGuarantyVariableInterestEntitiesMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:SecondMortgageMember2022-12-310001273813us-gaap:RecourseMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:FinancialGuarantyVariableInterestEntitiesMemberago:PuertoRicoTrustsMember2023-09-300001273813us-gaap:RecourseMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:FinancialGuarantyVariableInterestEntitiesMemberago:PuertoRicoTrustsMember2022-12-310001273813us-gaap:RecourseMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:FinancialGuarantyVariableInterestEntitiesMemberus-gaap:UnderlyingOtherMember2023-09-300001273813us-gaap:RecourseMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:FinancialGuarantyVariableInterestEntitiesMemberus-gaap:UnderlyingOtherMember2022-12-310001273813us-gaap:RecourseMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:FinancialGuarantyVariableInterestEntitiesMember2023-09-300001273813us-gaap:RecourseMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:FinancialGuarantyVariableInterestEntitiesMember2022-12-310001273813us-gaap:VariableInterestEntityPrimaryBeneficiaryMembercountry:USus-gaap:NonrecourseMemberago:FinancialGuarantyVariableInterestEntitiesMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FirstMortgageMember2023-09-300001273813us-gaap:VariableInterestEntityPrimaryBeneficiaryMembercountry:USus-gaap:NonrecourseMemberago:FinancialGuarantyVariableInterestEntitiesMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FirstMortgageMember2022-12-310001273813us-gaap:VariableInterestEntityPrimaryBeneficiaryMemberus-gaap:NonrecourseMemberago:FinancialGuarantyVariableInterestEntitiesMember2023-09-300001273813us-gaap:VariableInterestEntityPrimaryBeneficiaryMemberus-gaap:NonrecourseMemberago:FinancialGuarantyVariableInterestEntitiesMember2022-12-310001273813ago:FinancialGuarantyVariableInterestEntitiesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2023-07-012023-09-300001273813ago:FinancialGuarantyVariableInterestEntitiesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2023-01-012023-09-300001273813ago:FinancialGuarantyVariableInterestEntitiesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2022-07-012022-09-300001273813ago:FinancialGuarantyVariableInterestEntitiesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2022-01-012022-09-300001273813us-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:FinancialGuarantyVariableInterestEntitiesMember2023-09-300001273813us-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:FinancialGuarantyVariableInterestEntitiesMember2022-12-310001273813ago:SoundPointAgreementMember2023-09-300001273813ago:SoundPointAgreementMember2023-07-012023-09-300001273813ago:SoundPointAgreementMember2023-01-012023-09-300001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberus-gaap:CollateralizedLoanObligationsMember2022-09-300001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:InvestmentManagedFundsMember2023-09-30ago:consolidatedInvestmentFund0001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:InvestmentManagedFundsMember2022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberus-gaap:CollateralizedLoanObligationsMember2023-09-30ago:consolidatedCLO0001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberus-gaap:CollateralizedLoanObligationsMember2022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:CollateralizedLoanObligationWarehousesMember2023-09-30ago:cLOWarehouse0001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:CollateralizedLoanObligationWarehousesMember2022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2023-09-30ago:consolidatedInvestmentVehicle0001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberago:VotingInterestEntityMember2022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:FundInvestmentsMemberago:CashandRestrictedCashMember2023-09-300001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:FundInvestmentsMemberago:CashandRestrictedCashMember2022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:FundInvestmentsMemberago:EquitySecuritiesAndWarrantsMember2023-09-300001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:FundInvestmentsMemberago:EquitySecuritiesAndWarrantsMember2022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:FundInvestmentsMemberago:StructuredProductsMember2023-09-300001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:FundInvestmentsMemberago:StructuredProductsMember2022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberus-gaap:CorporateDebtSecuritiesMemberago:FundInvestmentsMember2023-09-300001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberus-gaap:CorporateDebtSecuritiesMemberago:FundInvestmentsMember2022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:FundInvestmentsMemberus-gaap:OtherAssetsMember2023-09-300001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:FundInvestmentsMemberus-gaap:OtherAssetsMember2022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:CashandRestrictedCashMemberago:CLOInvestmentsMember2023-09-300001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:CashandRestrictedCashMemberago:CLOInvestmentsMember2022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:CorporateLoansofCFEAtFairValueMemberago:CLOInvestmentsMember2023-09-300001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:CorporateLoansofCFEAtFairValueMemberago:CLOInvestmentsMember2022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberus-gaap:ShortTermInvestmentsMemberago:CLOInvestmentsMember2023-09-300001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberus-gaap:ShortTermInvestmentsMemberago:CLOInvestmentsMember2022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:DuefromBrokersandCounterpartiesMemberago:CLOInvestmentsMember2023-09-300001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:DuefromBrokersandCounterpartiesMemberago:CLOInvestmentsMember2022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:CollateralizedLoanObligationsofCFEAtFairValueMember2023-09-300001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:CollateralizedLoanObligationsofCFEAtFairValueMember2022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:BankDebtOfCLOWarehousesAtFairValueOptionMember2023-09-300001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:BankDebtOfCLOWarehousesAtFairValueOptionMember2022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:DuetoBrokersandCounterpartiesMember2023-09-300001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:DuetoBrokersandCounterpartiesMember2022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberus-gaap:OtherLiabilitiesMember2023-09-300001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberus-gaap:OtherLiabilitiesMember2022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2023-09-300001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:InvestmentsInAssuredIMFundsAndOtherAffiliatedEntitiesMember2022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberago:VotingInterestEntityMemberus-gaap:InvestmentsMember2022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:CollateralizedLoanObligationsofCFEAtFairValueMember2022-01-012022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:CollateralizedLoanObligationsofCFEAtFairValueMember2022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:BankDebtOfCLOWarehousesAtFairValueOptionMember2022-01-012022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:BankDebtOfCLOWarehousesAtFairValueOptionMember2022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberago:FutureEquityInvestmentsMembersrt:MaximumMember2023-01-012023-09-300001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMembersrt:ArithmeticAverageMember2023-09-300001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMembersrt:ArithmeticAverageMember2022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2022-01-012022-09-30ago:policy0001273813us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2023-09-300001273813ago:AGCAndAGMMember2023-09-30ago:Trust0001273813srt:MinimumMemberus-gaap:CreditDefaultSwapMemberus-gaap:MeasurementInputDefaultRateMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2023-01-012023-09-300001273813us-gaap:CreditDefaultSwapMembersrt:MaximumMemberus-gaap:MeasurementInputDefaultRateMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2023-01-012023-09-300001273813srt:MinimumMemberus-gaap:CreditDefaultSwapMemberus-gaap:MeasurementInputDefaultRateMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813us-gaap:CreditDefaultSwapMembersrt:MaximumMemberus-gaap:MeasurementInputDefaultRateMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813us-gaap:CreditDefaultSwapMember2023-09-300001273813us-gaap:FairValueInputsLevel1Memberus-gaap:FixedMaturitiesMemberus-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001273813us-gaap:FairValueInputsLevel2Memberus-gaap:FixedMaturitiesMemberus-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001273813us-gaap:FixedMaturitiesMemberus-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2023-09-300001273813us-gaap:FixedMaturitiesMemberus-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001273813us-gaap:FairValueInputsLevel1Memberus-gaap:USTreasuryAndGovernmentMemberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001273813us-gaap:FairValueInputsLevel2Memberus-gaap:USTreasuryAndGovernmentMemberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001273813us-gaap:USTreasuryAndGovernmentMemberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2023-09-300001273813us-gaap:USTreasuryAndGovernmentMemberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001273813us-gaap:FairValueInputsLevel1Memberus-gaap:CorporateDebtSecuritiesMemberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001273813us-gaap:CorporateDebtSecuritiesMemberus-gaap:FairValueInputsLevel2Memberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001273813us-gaap:CorporateDebtSecuritiesMemberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2023-09-300001273813us-gaap:CorporateDebtSecuritiesMemberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001273813us-gaap:FairValueInputsLevel1Memberus-gaap:FixedMaturitiesMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001273813us-gaap:FairValueInputsLevel2Memberus-gaap:FixedMaturitiesMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001273813us-gaap:FixedMaturitiesMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2023-09-300001273813us-gaap:FixedMaturitiesMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001273813us-gaap:FairValueInputsLevel1Memberus-gaap:CommercialMortgageBackedSecuritiesMemberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001273813us-gaap:CommercialMortgageBackedSecuritiesMemberus-gaap:FairValueInputsLevel2Memberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001273813us-gaap:CommercialMortgageBackedSecuritiesMemberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2023-09-300001273813us-gaap:CommercialMortgageBackedSecuritiesMemberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001273813us-gaap:FairValueInputsLevel1Memberus-gaap:AssetBackedSecuritiesMemberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001273813us-gaap:AssetBackedSecuritiesMemberus-gaap:FairValueInputsLevel2Memberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001273813us-gaap:AssetBackedSecuritiesMemberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2023-09-300001273813us-gaap:AssetBackedSecuritiesMemberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001273813us-gaap:FairValueInputsLevel1Memberus-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001273813us-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueInputsLevel2Memberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001273813us-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2023-09-300001273813us-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001273813us-gaap:FairValueInputsLevel1Memberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001273813us-gaap:FairValueInputsLevel2Memberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001273813us-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2023-09-300001273813us-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001273813us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001273813us-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001273813us-gaap:FairValueMeasurementsRecurringMember2023-09-300001273813us-gaap:FairValueInputsLevel1Memberago:FinancialGuarantyVariableInterestEntitiesMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001273813ago:FinancialGuarantyVariableInterestEntitiesMemberus-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001273813ago:FinancialGuarantyVariableInterestEntitiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2023-09-300001273813ago:FinancialGuarantyVariableInterestEntitiesMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:FairValueInputsLevel1Memberago:FundInvestmentsMemberago:EquitySecuritiesAndWarrantsMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001273813ago:ConsolidatedInvestmentVehiclesMemberago:FundInvestmentsMemberus-gaap:FairValueInputsLevel2Memberago:EquitySecuritiesAndWarrantsMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001273813ago:ConsolidatedInvestmentVehiclesMemberago:FundInvestmentsMemberago:EquitySecuritiesAndWarrantsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2023-09-300001273813ago:ConsolidatedInvestmentVehiclesMemberago:FundInvestmentsMemberago:EquitySecuritiesAndWarrantsMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:FairValueInputsLevel1Memberago:FundInvestmentsMemberago:StructuredProductsMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001273813ago:ConsolidatedInvestmentVehiclesMemberago:FundInvestmentsMemberus-gaap:FairValueInputsLevel2Memberago:StructuredProductsMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001273813ago:ConsolidatedInvestmentVehiclesMemberago:FundInvestmentsMemberago:StructuredProductsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2023-09-300001273813ago:ConsolidatedInvestmentVehiclesMemberago:FundInvestmentsMemberago:StructuredProductsMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2023-09-300001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001273813us-gaap:FairValueInputsLevel1Memberago:FinancialGuarantyVariableInterestEntitiesMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001273813us-gaap:FairValueInputsLevel2Memberago:FinancialGuarantyVariableInterestEntitiesMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001273813ago:FinancialGuarantyVariableInterestEntitiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2023-09-300001273813ago:FinancialGuarantyVariableInterestEntitiesMemberus-gaap:FairValueMeasurementsRecurringMember2023-09-300001273813us-gaap:FairValueInputsLevel1Memberus-gaap:FixedMaturitiesMemberus-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001273813us-gaap:FairValueInputsLevel2Memberus-gaap:FixedMaturitiesMemberus-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001273813us-gaap:FixedMaturitiesMemberus-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-12-310001273813us-gaap:FixedMaturitiesMemberus-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001273813us-gaap:FairValueInputsLevel1Memberus-gaap:USTreasuryAndGovernmentMemberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001273813us-gaap:FairValueInputsLevel2Memberus-gaap:USTreasuryAndGovernmentMemberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001273813us-gaap:USTreasuryAndGovernmentMemberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-12-310001273813us-gaap:USTreasuryAndGovernmentMemberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001273813us-gaap:FairValueInputsLevel1Memberus-gaap:CorporateDebtSecuritiesMemberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001273813us-gaap:CorporateDebtSecuritiesMemberus-gaap:FairValueInputsLevel2Memberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001273813us-gaap:CorporateDebtSecuritiesMemberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-12-310001273813us-gaap:CorporateDebtSecuritiesMemberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001273813us-gaap:FairValueInputsLevel1Memberus-gaap:FixedMaturitiesMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001273813us-gaap:FairValueInputsLevel2Memberus-gaap:FixedMaturitiesMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001273813us-gaap:FixedMaturitiesMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-12-310001273813us-gaap:FixedMaturitiesMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001273813us-gaap:FairValueInputsLevel1Memberus-gaap:CommercialMortgageBackedSecuritiesMemberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001273813us-gaap:CommercialMortgageBackedSecuritiesMemberus-gaap:FairValueInputsLevel2Memberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001273813us-gaap:CommercialMortgageBackedSecuritiesMemberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-12-310001273813us-gaap:CommercialMortgageBackedSecuritiesMemberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001273813us-gaap:FairValueInputsLevel1Memberus-gaap:AssetBackedSecuritiesMemberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001273813us-gaap:AssetBackedSecuritiesMemberus-gaap:FairValueInputsLevel2Memberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001273813us-gaap:AssetBackedSecuritiesMemberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-12-310001273813us-gaap:AssetBackedSecuritiesMemberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001273813us-gaap:FairValueInputsLevel1Memberus-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001273813us-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueInputsLevel2Memberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001273813us-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-12-310001273813us-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001273813us-gaap:FairValueInputsLevel1Memberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001273813us-gaap:FairValueInputsLevel2Memberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001273813us-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-12-310001273813us-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001273813us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001273813us-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001273813us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-12-310001273813us-gaap:FairValueMeasurementsRecurringMember2022-12-310001273813us-gaap:FairValueInputsLevel1Memberago:FinancialGuarantyVariableInterestEntitiesMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001273813ago:FinancialGuarantyVariableInterestEntitiesMemberus-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001273813ago:FinancialGuarantyVariableInterestEntitiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-12-310001273813ago:FinancialGuarantyVariableInterestEntitiesMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:FairValueInputsLevel1Memberago:FundInvestmentsMemberago:EquitySecuritiesAndWarrantsMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberago:FundInvestmentsMemberus-gaap:FairValueInputsLevel2Memberago:EquitySecuritiesAndWarrantsMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberago:FundInvestmentsMemberago:EquitySecuritiesAndWarrantsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberago:FundInvestmentsMemberago:EquitySecuritiesAndWarrantsMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:FairValueInputsLevel1Memberus-gaap:CorporateDebtSecuritiesMemberago:FundInvestmentsMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:CorporateDebtSecuritiesMemberago:FundInvestmentsMemberus-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:CorporateDebtSecuritiesMemberago:FundInvestmentsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:CorporateDebtSecuritiesMemberago:FundInvestmentsMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:FairValueInputsLevel1Memberago:FundInvestmentsMemberago:StructuredProductsMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberago:FundInvestmentsMemberus-gaap:FairValueInputsLevel2Memberago:StructuredProductsMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberago:FundInvestmentsMemberago:StructuredProductsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberago:FundInvestmentsMemberago:StructuredProductsMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:FairValueInputsLevel1Memberago:CLOInvestmentsMemberus-gaap:DebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:FairValueInputsLevel2Memberago:CLOInvestmentsMemberus-gaap:DebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberago:CLOInvestmentsMemberus-gaap:DebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberago:CLOInvestmentsMemberus-gaap:DebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:FairValueInputsLevel1Memberus-gaap:ShortTermInvestmentsMemberago:CLOInvestmentsMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:ShortTermInvestmentsMemberus-gaap:FairValueInputsLevel2Memberago:CLOInvestmentsMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:ShortTermInvestmentsMemberago:CLOInvestmentsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:ShortTermInvestmentsMemberago:CLOInvestmentsMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001273813us-gaap:FairValueInputsLevel1Memberago:FinancialGuarantyVariableInterestEntitiesMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001273813us-gaap:FairValueInputsLevel2Memberago:FinancialGuarantyVariableInterestEntitiesMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001273813ago:FinancialGuarantyVariableInterestEntitiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-12-310001273813ago:FinancialGuarantyVariableInterestEntitiesMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001273813us-gaap:FairValueInputsLevel1Memberago:ConsolidatedInvestmentVehiclesMemberago:CollateralizedLoanObligationsofCFEAtFairValueMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:FairValueInputsLevel2Memberago:CollateralizedLoanObligationsofCFEAtFairValueMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberago:CollateralizedLoanObligationsofCFEAtFairValueMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberago:CollateralizedLoanObligationsofCFEAtFairValueMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001273813us-gaap:FairValueInputsLevel1Memberago:ConsolidatedInvestmentVehiclesMemberus-gaap:FairValueMeasurementsRecurringMemberago:BankDebtOfCollateralizedLoanObligationWarehousesMember2022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMemberago:BankDebtOfCollateralizedLoanObligationWarehousesMember2022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:FairValueMeasurementsRecurringMemberago:BankDebtOfCollateralizedLoanObligationWarehousesMemberus-gaap:FairValueInputsLevel3Member2022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:FairValueMeasurementsRecurringMemberago:BankDebtOfCollateralizedLoanObligationWarehousesMember2022-12-310001273813us-gaap:FairValueInputsLevel1Memberago:ConsolidatedInvestmentVehiclesMemberus-gaap:BorrowingsMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:FairValueInputsLevel2Memberus-gaap:BorrowingsMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:BorrowingsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:BorrowingsMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001273813us-gaap:FairValueInputsLevel1Memberago:ConsolidatedInvestmentVehiclesMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:FairValueMeasurementsRecurringMember2022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberago:FundInvestmentsMemberago:EquitySecuritiesAndWarrantsMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMember2022-12-310001273813us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FixedMaturitiesMember2023-06-300001273813us-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FixedMaturitiesMember2023-06-300001273813us-gaap:AssetBackedSecuritiesMemberus-gaap:FixedMaturitiesMember2023-06-300001273813ago:VariableInterestEntityAssetsMember2023-06-300001273813ago:ConsolidatedInvestmentVehiclesMemberago:EquitySecuritiesAndWarrantsMember2023-06-300001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:CorporateDebtSecuritiesMember2023-06-300001273813ago:ConsolidatedInvestmentVehiclesMemberago:StructuredProductsMember2023-06-300001273813ago:OtherAssetsandOtherInvestedAssetsMember2023-06-300001273813us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FixedMaturitiesMember2023-07-012023-09-300001273813us-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FixedMaturitiesMember2023-07-012023-09-300001273813us-gaap:AssetBackedSecuritiesMemberus-gaap:FixedMaturitiesMember2023-07-012023-09-300001273813ago:VariableInterestEntityAssetsMember2023-07-012023-09-300001273813ago:ConsolidatedInvestmentVehiclesMemberago:EquitySecuritiesAndWarrantsMember2023-07-012023-09-300001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:CorporateDebtSecuritiesMember2023-07-012023-09-300001273813ago:ConsolidatedInvestmentVehiclesMemberago:StructuredProductsMember2023-07-012023-09-300001273813ago:OtherAssetsandOtherInvestedAssetsMember2023-07-012023-09-300001273813us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FixedMaturitiesMember2023-09-300001273813us-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FixedMaturitiesMember2023-09-300001273813us-gaap:AssetBackedSecuritiesMemberus-gaap:FixedMaturitiesMember2023-09-300001273813ago:VariableInterestEntityAssetsMember2023-09-300001273813ago:ConsolidatedInvestmentVehiclesMemberago:EquitySecuritiesAndWarrantsMember2023-09-300001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:CorporateDebtSecuritiesMember2023-09-300001273813ago:ConsolidatedInvestmentVehiclesMemberago:StructuredProductsMember2023-09-300001273813ago:OtherAssetsandOtherInvestedAssetsMember2023-09-300001273813us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FixedMaturitiesMemberus-gaap:OtherComprehensiveIncomeMember2023-07-012023-09-300001273813us-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FixedMaturitiesMemberus-gaap:OtherComprehensiveIncomeMember2023-07-012023-09-300001273813us-gaap:AssetBackedSecuritiesMemberus-gaap:FixedMaturitiesMemberus-gaap:OtherComprehensiveIncomeMember2023-07-012023-09-300001273813ago:OtherAssetsandOtherInvestedAssetsMemberus-gaap:OtherComprehensiveIncomeMember2023-07-012023-09-300001273813us-gaap:CreditRiskContractMember2023-06-300001273813ago:FinancialGuarantyVariableInterestEntitiesMember2023-06-300001273813ago:LiabilitiesofConsolidatedInvestmentVehiclesMember2023-06-300001273813us-gaap:CreditRiskContractMember2023-07-012023-09-300001273813ago:FinancialGuarantyVariableInterestEntitiesMember2023-07-012023-09-300001273813ago:LiabilitiesofConsolidatedInvestmentVehiclesMember2023-07-012023-09-300001273813us-gaap:CreditRiskContractMember2023-09-300001273813ago:FinancialGuarantyVariableInterestEntitiesMember2023-09-300001273813ago:LiabilitiesofConsolidatedInvestmentVehiclesMember2023-09-300001273813us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FixedMaturitiesMember2022-06-300001273813us-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FixedMaturitiesMember2022-06-300001273813us-gaap:AssetBackedSecuritiesMemberus-gaap:FixedMaturitiesMember2022-06-300001273813ago:VariableInterestEntityAssetsMember2022-06-300001273813ago:ConsolidatedInvestmentVehiclesMemberago:EquitySecuritiesAndWarrantsMember2022-06-300001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:CorporateDebtSecuritiesMember2022-06-300001273813ago:ConsolidatedInvestmentVehiclesMemberago:StructuredProductsMember2022-06-300001273813ago:OtherAssetsandOtherInvestedAssetsMember2022-06-300001273813us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FixedMaturitiesMember2022-07-012022-09-300001273813us-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FixedMaturitiesMember2022-07-012022-09-300001273813us-gaap:AssetBackedSecuritiesMemberus-gaap:FixedMaturitiesMember2022-07-012022-09-300001273813ago:VariableInterestEntityAssetsMember2022-07-012022-09-300001273813ago:ConsolidatedInvestmentVehiclesMemberago:EquitySecuritiesAndWarrantsMember2022-07-012022-09-300001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:CorporateDebtSecuritiesMember2022-07-012022-09-300001273813ago:ConsolidatedInvestmentVehiclesMemberago:StructuredProductsMember2022-07-012022-09-300001273813ago:OtherAssetsandOtherInvestedAssetsMember2022-07-012022-09-300001273813us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FixedMaturitiesMember2022-09-300001273813us-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FixedMaturitiesMember2022-09-300001273813us-gaap:AssetBackedSecuritiesMemberus-gaap:FixedMaturitiesMember2022-09-300001273813ago:VariableInterestEntityAssetsMember2022-09-300001273813ago:ConsolidatedInvestmentVehiclesMemberago:EquitySecuritiesAndWarrantsMember2022-09-300001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:CorporateDebtSecuritiesMember2022-09-300001273813ago:ConsolidatedInvestmentVehiclesMemberago:StructuredProductsMember2022-09-300001273813ago:OtherAssetsandOtherInvestedAssetsMember2022-09-300001273813us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FixedMaturitiesMemberus-gaap:OtherComprehensiveIncomeMember2022-07-012022-09-300001273813us-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FixedMaturitiesMemberus-gaap:OtherComprehensiveIncomeMember2022-07-012022-09-300001273813us-gaap:AssetBackedSecuritiesMemberus-gaap:FixedMaturitiesMemberus-gaap:OtherComprehensiveIncomeMember2022-07-012022-09-300001273813ago:OtherAssetsandOtherInvestedAssetsMemberus-gaap:OtherComprehensiveIncomeMember2022-07-012022-09-300001273813us-gaap:CreditRiskContractMember2022-06-300001273813ago:FinancialGuarantyVariableInterestEntitiesMember2022-06-300001273813ago:LiabilitiesofConsolidatedInvestmentVehiclesMember2022-06-300001273813us-gaap:CreditRiskContractMember2022-07-012022-09-300001273813ago:FinancialGuarantyVariableInterestEntitiesMember2022-07-012022-09-300001273813ago:LiabilitiesofConsolidatedInvestmentVehiclesMember2022-07-012022-09-300001273813us-gaap:CreditRiskContractMember2022-09-300001273813ago:FinancialGuarantyVariableInterestEntitiesMember2022-09-300001273813ago:LiabilitiesofConsolidatedInvestmentVehiclesMember2022-09-300001273813us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FixedMaturitiesMember2022-12-310001273813us-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FixedMaturitiesMember2022-12-310001273813us-gaap:AssetBackedSecuritiesMemberus-gaap:FixedMaturitiesMember2022-12-310001273813ago:VariableInterestEntityAssetsMember2022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberago:EquitySecuritiesAndWarrantsMember2022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:CorporateDebtSecuritiesMember2022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberago:StructuredProductsMember2022-12-310001273813ago:OtherAssetsandOtherInvestedAssetsMember2022-12-310001273813us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FixedMaturitiesMember2023-01-012023-09-300001273813us-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FixedMaturitiesMember2023-01-012023-09-300001273813us-gaap:AssetBackedSecuritiesMemberus-gaap:FixedMaturitiesMember2023-01-012023-09-300001273813ago:VariableInterestEntityAssetsMember2023-01-012023-09-300001273813ago:ConsolidatedInvestmentVehiclesMemberago:EquitySecuritiesAndWarrantsMember2023-01-012023-09-300001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:CorporateDebtSecuritiesMember2023-01-012023-09-300001273813ago:ConsolidatedInvestmentVehiclesMemberago:StructuredProductsMember2023-01-012023-09-300001273813ago:OtherAssetsandOtherInvestedAssetsMember2023-01-012023-09-300001273813us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FixedMaturitiesMemberus-gaap:OtherComprehensiveIncomeMember2023-01-012023-09-300001273813us-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FixedMaturitiesMemberus-gaap:OtherComprehensiveIncomeMember2023-01-012023-09-300001273813us-gaap:AssetBackedSecuritiesMemberus-gaap:FixedMaturitiesMemberus-gaap:OtherComprehensiveIncomeMember2023-01-012023-09-300001273813ago:OtherAssetsandOtherInvestedAssetsMemberus-gaap:OtherComprehensiveIncomeMember2023-01-012023-09-300001273813us-gaap:CreditRiskContractMember2022-12-310001273813ago:FinancialGuarantyVariableInterestEntitiesMember2022-12-310001273813ago:LiabilitiesofConsolidatedInvestmentVehiclesMember2022-12-310001273813us-gaap:CreditRiskContractMember2023-01-012023-09-300001273813ago:FinancialGuarantyVariableInterestEntitiesMember2023-01-012023-09-300001273813ago:LiabilitiesofConsolidatedInvestmentVehiclesMember2023-01-012023-09-300001273813us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FixedMaturitiesMember2021-12-310001273813us-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FixedMaturitiesMember2021-12-310001273813us-gaap:AssetBackedSecuritiesMemberus-gaap:FixedMaturitiesMember2021-12-310001273813ago:VariableInterestEntityAssetsMember2021-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:EquitySecuritiesMember2021-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:CorporateDebtSecuritiesMember2021-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberago:StructuredProductsMember2021-12-310001273813ago:OtherAssetsandOtherInvestedAssetsMember2021-12-310001273813us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FixedMaturitiesMember2022-01-012022-09-300001273813us-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FixedMaturitiesMember2022-01-012022-09-300001273813us-gaap:AssetBackedSecuritiesMemberus-gaap:FixedMaturitiesMember2022-01-012022-09-300001273813ago:VariableInterestEntityAssetsMember2022-01-012022-09-300001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:EquitySecuritiesMember2022-01-012022-09-300001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:CorporateDebtSecuritiesMember2022-01-012022-09-300001273813ago:ConsolidatedInvestmentVehiclesMemberago:StructuredProductsMember2022-01-012022-09-300001273813ago:OtherAssetsandOtherInvestedAssetsMember2022-01-012022-09-300001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:EquitySecuritiesMember2022-09-300001273813us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FixedMaturitiesMemberus-gaap:OtherComprehensiveIncomeMember2022-01-012022-09-300001273813us-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FixedMaturitiesMemberus-gaap:OtherComprehensiveIncomeMember2022-01-012022-09-300001273813us-gaap:AssetBackedSecuritiesMemberus-gaap:FixedMaturitiesMemberus-gaap:OtherComprehensiveIncomeMember2022-01-012022-09-300001273813ago:OtherAssetsandOtherInvestedAssetsMemberus-gaap:OtherComprehensiveIncomeMember2022-01-012022-09-300001273813us-gaap:CreditRiskContractMember2021-12-310001273813ago:FinancialGuarantyVariableInterestEntitiesMember2021-12-310001273813ago:LiabilitiesofConsolidatedInvestmentVehiclesMember2021-12-310001273813us-gaap:CreditRiskContractMember2022-01-012022-09-300001273813ago:FinancialGuarantyVariableInterestEntitiesMember2022-01-012022-09-300001273813ago:LiabilitiesofConsolidatedInvestmentVehiclesMember2022-01-012022-09-300001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueInputsLevel3Member2023-09-300001273813srt:MinimumMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueInputsLevel3Member2023-01-012023-09-300001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MaximumMemberus-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueInputsLevel3Member2023-01-012023-09-300001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:WeightedAverageMemberus-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueInputsLevel3Member2023-01-012023-09-300001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FairValueInputsLevel3Member2023-09-300001273813srt:MinimumMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:MeasurementInputPrepaymentRateMemberus-gaap:FairValueInputsLevel3Member2023-01-012023-09-300001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MaximumMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:MeasurementInputPrepaymentRateMemberus-gaap:FairValueInputsLevel3Member2023-01-012023-09-300001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:WeightedAverageMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:MeasurementInputPrepaymentRateMemberus-gaap:FairValueInputsLevel3Member2023-01-012023-09-300001273813srt:MinimumMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:MeasurementInputDefaultRateMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FairValueInputsLevel3Member2023-01-012023-09-300001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MaximumMemberus-gaap:MeasurementInputDefaultRateMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FairValueInputsLevel3Member2023-01-012023-09-300001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:WeightedAverageMemberus-gaap:MeasurementInputDefaultRateMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FairValueInputsLevel3Member2023-01-012023-09-300001273813srt:MinimumMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:MeasurementInputLossSeverityMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FairValueInputsLevel3Member2023-01-012023-09-300001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:MeasurementInputLossSeverityMembersrt:MaximumMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FairValueInputsLevel3Member2023-01-012023-09-300001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:MeasurementInputLossSeverityMembersrt:WeightedAverageMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FairValueInputsLevel3Member2023-01-012023-09-300001273813srt:MinimumMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FairValueInputsLevel3Member2023-01-012023-09-300001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MaximumMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FairValueInputsLevel3Member2023-01-012023-09-300001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:WeightedAverageMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FairValueInputsLevel3Member2023-01-012023-09-300001273813ago:LifeInsuranceTransactionMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:FairValueInputsLevel3Member2023-09-300001273813ago:LifeInsuranceTransactionMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:FairValueInputsLevel3Member2023-01-012023-09-300001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:CollateralizedLoanObligationsMemberus-gaap:FairValueInputsLevel3Member2023-09-300001273813srt:MinimumMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:MeasurementInputDiscountRateMemberus-gaap:CollateralizedLoanObligationsMemberus-gaap:FairValueInputsLevel3Member2023-01-012023-09-300001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:MeasurementInputDiscountRateMembersrt:MaximumMemberus-gaap:CollateralizedLoanObligationsMemberus-gaap:FairValueInputsLevel3Member2023-01-012023-09-300001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:WeightedAverageMemberus-gaap:MeasurementInputDiscountRateMemberus-gaap:CollateralizedLoanObligationsMemberus-gaap:FairValueInputsLevel3Member2023-01-012023-09-300001273813us-gaap:IncomeApproachValuationTechniqueMemberago:OtherAssetBackedSecuritiesMemberus-gaap:FairValueInputsLevel3Member2023-09-300001273813srt:MinimumMemberus-gaap:IncomeApproachValuationTechniqueMemberago:OtherAssetBackedSecuritiesMemberus-gaap:FairValueInputsLevel3Member2023-01-012023-09-300001273813us-gaap:IncomeApproachValuationTechniqueMemberago:OtherAssetBackedSecuritiesMembersrt:MaximumMemberus-gaap:FairValueInputsLevel3Member2023-01-012023-09-300001273813us-gaap:IncomeApproachValuationTechniqueMemberago:OtherAssetBackedSecuritiesMembersrt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Member2023-01-012023-09-300001273813us-gaap:IncomeApproachValuationTechniqueMemberago:FinancialGuaranteeVariableInterestEntitiesMemberus-gaap:FairValueInputsLevel3Member2023-09-300001273813srt:MinimumMemberus-gaap:IncomeApproachValuationTechniqueMemberago:FinancialGuaranteeVariableInterestEntitiesMemberus-gaap:MeasurementInputPrepaymentRateMemberus-gaap:FairValueInputsLevel3Member2023-01-012023-09-300001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MaximumMemberago:FinancialGuaranteeVariableInterestEntitiesMemberus-gaap:MeasurementInputPrepaymentRateMemberus-gaap:FairValueInputsLevel3Member2023-01-012023-09-300001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:WeightedAverageMemberago:FinancialGuaranteeVariableInterestEntitiesMemberus-gaap:MeasurementInputPrepaymentRateMemberus-gaap:FairValueInputsLevel3Member2023-01-012023-09-300001273813srt:MinimumMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:MeasurementInputDefaultRateMemberago:FinancialGuaranteeVariableInterestEntitiesMemberus-gaap:FairValueInputsLevel3Member2023-01-012023-09-300001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MaximumMemberus-gaap:MeasurementInputDefaultRateMemberago:FinancialGuaranteeVariableInterestEntitiesMemberus-gaap:FairValueInputsLevel3Member2023-01-012023-09-300001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:WeightedAverageMemberus-gaap:MeasurementInputDefaultRateMemberago:FinancialGuaranteeVariableInterestEntitiesMemberus-gaap:FairValueInputsLevel3Member2023-01-012023-09-300001273813srt:MinimumMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:MeasurementInputLossSeverityMemberago:FinancialGuaranteeVariableInterestEntitiesMemberus-gaap:FairValueInputsLevel3Member2023-01-012023-09-300001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:MeasurementInputLossSeverityMembersrt:MaximumMemberago:FinancialGuaranteeVariableInterestEntitiesMemberus-gaap:FairValueInputsLevel3Member2023-01-012023-09-300001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:MeasurementInputLossSeverityMembersrt:WeightedAverageMemberago:FinancialGuaranteeVariableInterestEntitiesMemberus-gaap:FairValueInputsLevel3Member2023-01-012023-09-300001273813srt:MinimumMemberus-gaap:IncomeApproachValuationTechniqueMemberago:FinancialGuaranteeVariableInterestEntitiesMemberus-gaap:FairValueInputsLevel3Member2023-01-012023-09-300001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MaximumMemberago:FinancialGuaranteeVariableInterestEntitiesMemberus-gaap:FairValueInputsLevel3Member2023-01-012023-09-300001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:WeightedAverageMemberago:FinancialGuaranteeVariableInterestEntitiesMemberus-gaap:FairValueInputsLevel3Member2023-01-012023-09-300001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:IncomeApproachValuationTechniqueMemberago:EquitySecuritiesAndWarrantsMemberus-gaap:FairValueInputsLevel3Member2023-09-300001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:MeasurementInputDiscountRateMemberago:EquitySecuritiesAndWarrantsMemberus-gaap:FairValueInputsLevel3Member2023-01-012023-09-300001273813ago:ConsolidatedInvestmentVehiclesMemberago:EquitySecuritiesAndWarrantsMemberus-gaap:MarketApproachValuationTechniqueMemberus-gaap:MeasurementInputRevenueMultipleMemberus-gaap:FairValueInputsLevel3Member2023-01-012023-09-300001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:MeasurementInputLongTermRevenueGrowthRateMemberago:EquitySecuritiesAndWarrantsMemberus-gaap:FairValueInputsLevel3Member2023-01-012023-09-300001273813ago:ConsolidatedInvestmentVehiclesMemberago:EquitySecuritiesAndWarrantsMemberago:MeasurementInputPriceToBookMemberus-gaap:MarketApproachValuationTechniqueMemberus-gaap:FairValueInputsLevel3Member2023-01-012023-09-300001273813ago:ConsolidatedInvestmentVehiclesMemberago:EquitySecuritiesAndWarrantsMemberago:MeasurementInputPriceToEarningsMemberus-gaap:MarketApproachValuationTechniqueMemberus-gaap:FairValueInputsLevel3Member2023-01-012023-09-300001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:IncomeApproachValuationTechniqueMemberago:StructuredProductsMemberus-gaap:FairValueInputsLevel3Member2023-09-300001273813srt:MinimumMemberus-gaap:IncomeApproachValuationTechniqueMemberago:StructuredProductsMemberus-gaap:FairValueInputsLevel3Member2023-01-012023-09-300001273813us-gaap:IncomeApproachValuationTechniqueMemberago:StructuredProductsMembersrt:MaximumMemberus-gaap:FairValueInputsLevel3Member2023-01-012023-09-300001273813us-gaap:IncomeApproachValuationTechniqueMemberago:StructuredProductsMembersrt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Member2023-01-012023-09-300001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:OtherAssetsMemberus-gaap:FairValueInputsLevel3Member2023-09-300001273813srt:MinimumMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:OtherAssetsMemberus-gaap:FairValueInputsLevel3Member2023-01-012023-09-300001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MaximumMemberus-gaap:OtherAssetsMemberus-gaap:FairValueInputsLevel3Member2023-01-012023-09-300001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:WeightedAverageMemberus-gaap:OtherAssetsMemberus-gaap:FairValueInputsLevel3Member2023-01-012023-09-300001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:OtherAssetsMemberus-gaap:FairValueInputsLevel3Member2023-01-012023-09-300001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMemberus-gaap:FairValueInputsLevel3Member2023-09-300001273813srt:MinimumMemberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMemberus-gaap:FairValueInputsLevel3Member2023-01-012023-09-300001273813srt:MaximumMemberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMemberus-gaap:FairValueInputsLevel3Member2023-01-012023-09-300001273813srt:WeightedAverageMemberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMemberus-gaap:FairValueInputsLevel3Member2023-01-012023-09-300001273813us-gaap:DerivativeFinancialInstrumentsLiabilitiesMemberus-gaap:FairValueInputsLevel3Member2023-01-012023-09-300001273813us-gaap:IncomeApproachValuationTechniqueMemberago:FinancialGuaranteeVariableInterestEntitiesMemberus-gaap:FairValueInputsLevel3Member2023-09-300001273813srt:MinimumMemberus-gaap:IncomeApproachValuationTechniqueMemberago:FinancialGuaranteeVariableInterestEntitiesMemberus-gaap:MeasurementInputPrepaymentRateMemberus-gaap:FairValueInputsLevel3Member2023-01-012023-09-300001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MaximumMemberago:FinancialGuaranteeVariableInterestEntitiesMemberus-gaap:MeasurementInputPrepaymentRateMemberus-gaap:FairValueInputsLevel3Member2023-01-012023-09-300001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:WeightedAverageMemberago:FinancialGuaranteeVariableInterestEntitiesMemberus-gaap:MeasurementInputPrepaymentRateMemberus-gaap:FairValueInputsLevel3Member2023-01-012023-09-300001273813srt:MinimumMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:MeasurementInputDefaultRateMemberago:FinancialGuaranteeVariableInterestEntitiesMemberus-gaap:FairValueInputsLevel3Member2023-01-012023-09-300001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MaximumMemberus-gaap:MeasurementInputDefaultRateMemberago:FinancialGuaranteeVariableInterestEntitiesMemberus-gaap:FairValueInputsLevel3Member2023-01-012023-09-300001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:WeightedAverageMemberus-gaap:MeasurementInputDefaultRateMemberago:FinancialGuaranteeVariableInterestEntitiesMemberus-gaap:FairValueInputsLevel3Member2023-01-012023-09-300001273813srt:MinimumMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:MeasurementInputLossSeverityMemberago:FinancialGuaranteeVariableInterestEntitiesMemberus-gaap:FairValueInputsLevel3Member2023-01-012023-09-300001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:MeasurementInputLossSeverityMembersrt:MaximumMemberago:FinancialGuaranteeVariableInterestEntitiesMemberus-gaap:FairValueInputsLevel3Member2023-01-012023-09-300001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:MeasurementInputLossSeverityMembersrt:WeightedAverageMemberago:FinancialGuaranteeVariableInterestEntitiesMemberus-gaap:FairValueInputsLevel3Member2023-01-012023-09-300001273813srt:MinimumMemberus-gaap:IncomeApproachValuationTechniqueMemberago:FinancialGuaranteeVariableInterestEntitiesMemberus-gaap:FairValueInputsLevel3Member2023-01-012023-09-300001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MaximumMemberago:FinancialGuaranteeVariableInterestEntitiesMemberus-gaap:FairValueInputsLevel3Member2023-01-012023-09-300001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:WeightedAverageMemberago:FinancialGuaranteeVariableInterestEntitiesMemberus-gaap:FairValueInputsLevel3Member2023-01-012023-09-300001273813ago:OtherInvestedAssetsMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:FairValueInputsLevel3Member2023-09-300001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueInputsLevel3Member2022-12-310001273813srt:MinimumMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MaximumMemberus-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:WeightedAverageMemberus-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FairValueInputsLevel3Member2022-12-310001273813srt:MinimumMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:MeasurementInputPrepaymentRateMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MaximumMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:MeasurementInputPrepaymentRateMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:WeightedAverageMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:MeasurementInputPrepaymentRateMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813srt:MinimumMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:MeasurementInputDefaultRateMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MaximumMemberus-gaap:MeasurementInputDefaultRateMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:WeightedAverageMemberus-gaap:MeasurementInputDefaultRateMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813srt:MinimumMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:MeasurementInputLossSeverityMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:MeasurementInputLossSeverityMembersrt:MaximumMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:MeasurementInputLossSeverityMembersrt:WeightedAverageMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813srt:MinimumMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MaximumMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:WeightedAverageMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813ago:LifeInsuranceTransactionMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:FairValueInputsLevel3Member2022-12-310001273813ago:LifeInsuranceTransactionMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:CollateralizedLoanObligationsMemberus-gaap:FairValueInputsLevel3Member2022-12-310001273813srt:MinimumMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:MeasurementInputDiscountRateMemberus-gaap:CollateralizedLoanObligationsMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:MeasurementInputDiscountRateMembersrt:MaximumMemberus-gaap:CollateralizedLoanObligationsMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:WeightedAverageMemberus-gaap:MeasurementInputDiscountRateMemberus-gaap:CollateralizedLoanObligationsMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberago:OtherAssetBackedSecuritiesMemberus-gaap:FairValueInputsLevel3Member2022-12-310001273813srt:MinimumMemberus-gaap:IncomeApproachValuationTechniqueMemberago:OtherAssetBackedSecuritiesMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberago:OtherAssetBackedSecuritiesMembersrt:MaximumMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberago:OtherAssetBackedSecuritiesMembersrt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberago:FinancialGuaranteeVariableInterestEntitiesMemberus-gaap:FairValueInputsLevel3Member2022-12-310001273813srt:MinimumMemberus-gaap:IncomeApproachValuationTechniqueMemberago:FinancialGuaranteeVariableInterestEntitiesMemberus-gaap:MeasurementInputPrepaymentRateMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MaximumMemberago:FinancialGuaranteeVariableInterestEntitiesMemberus-gaap:MeasurementInputPrepaymentRateMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:WeightedAverageMemberago:FinancialGuaranteeVariableInterestEntitiesMemberus-gaap:MeasurementInputPrepaymentRateMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813srt:MinimumMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:MeasurementInputDefaultRateMemberago:FinancialGuaranteeVariableInterestEntitiesMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MaximumMemberus-gaap:MeasurementInputDefaultRateMemberago:FinancialGuaranteeVariableInterestEntitiesMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:WeightedAverageMemberus-gaap:MeasurementInputDefaultRateMemberago:FinancialGuaranteeVariableInterestEntitiesMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813srt:MinimumMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:MeasurementInputLossSeverityMemberago:FinancialGuaranteeVariableInterestEntitiesMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:MeasurementInputLossSeverityMembersrt:MaximumMemberago:FinancialGuaranteeVariableInterestEntitiesMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:MeasurementInputLossSeverityMembersrt:WeightedAverageMemberago:FinancialGuaranteeVariableInterestEntitiesMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813srt:MinimumMemberus-gaap:IncomeApproachValuationTechniqueMemberago:FinancialGuaranteeVariableInterestEntitiesMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MaximumMemberago:FinancialGuaranteeVariableInterestEntitiesMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:WeightedAverageMemberago:FinancialGuaranteeVariableInterestEntitiesMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:IncomeApproachValuationTechniqueMemberago:EquitySecuritiesAndWarrantsMemberus-gaap:FairValueInputsLevel3Member2022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:IncomeApproachValuationTechniqueMemberago:EquitySecuritiesAndWarrantsMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813ago:ConsolidatedInvestmentVehiclesMembersrt:MinimumMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:MeasurementInputDiscountRateMemberago:EquitySecuritiesAndWarrantsMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:MeasurementInputDiscountRateMembersrt:MaximumMemberago:EquitySecuritiesAndWarrantsMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:IncomeApproachValuationTechniqueMembersrt:WeightedAverageMemberus-gaap:MeasurementInputDiscountRateMemberago:EquitySecuritiesAndWarrantsMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813ago:ConsolidatedInvestmentVehiclesMembersrt:MinimumMemberago:EquitySecuritiesAndWarrantsMemberus-gaap:MarketApproachValuationTechniqueMemberus-gaap:MeasurementInputRevenueMultipleMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813ago:ConsolidatedInvestmentVehiclesMembersrt:MaximumMemberago:EquitySecuritiesAndWarrantsMemberus-gaap:MarketApproachValuationTechniqueMemberus-gaap:MeasurementInputRevenueMultipleMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813ago:ConsolidatedInvestmentVehiclesMembersrt:WeightedAverageMemberago:EquitySecuritiesAndWarrantsMemberus-gaap:MarketApproachValuationTechniqueMemberus-gaap:MeasurementInputRevenueMultipleMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813ago:ConsolidatedInvestmentVehiclesMembersrt:MinimumMemberago:EquitySecuritiesAndWarrantsMemberus-gaap:MarketApproachValuationTechniqueMemberus-gaap:MeasurementInputEbitdaMultipleMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813ago:ConsolidatedInvestmentVehiclesMembersrt:MaximumMemberago:EquitySecuritiesAndWarrantsMemberus-gaap:MarketApproachValuationTechniqueMemberus-gaap:MeasurementInputEbitdaMultipleMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813ago:ConsolidatedInvestmentVehiclesMembersrt:WeightedAverageMemberago:EquitySecuritiesAndWarrantsMemberus-gaap:MarketApproachValuationTechniqueMemberus-gaap:MeasurementInputEbitdaMultipleMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberago:EquitySecuritiesAndWarrantsMemberus-gaap:MarketApproachValuationTechniqueMemberus-gaap:MeasurementInputRevenueMultipleMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813ago:ConsolidatedInvestmentVehiclesMembersrt:MinimumMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:MeasurementInputLongTermRevenueGrowthRateMemberago:EquitySecuritiesAndWarrantsMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:MeasurementInputLongTermRevenueGrowthRateMembersrt:MaximumMemberago:EquitySecuritiesAndWarrantsMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:MeasurementInputLongTermRevenueGrowthRateMembersrt:WeightedAverageMemberago:EquitySecuritiesAndWarrantsMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813ago:ConsolidatedInvestmentVehiclesMembersrt:MinimumMemberago:EquitySecuritiesAndWarrantsMemberago:MeasurementInputExitMultipleEBITDAMemberus-gaap:MarketApproachValuationTechniqueMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813ago:ConsolidatedInvestmentVehiclesMembersrt:MaximumMemberago:EquitySecuritiesAndWarrantsMemberago:MeasurementInputExitMultipleEBITDAMemberus-gaap:MarketApproachValuationTechniqueMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813ago:ConsolidatedInvestmentVehiclesMembersrt:WeightedAverageMemberago:EquitySecuritiesAndWarrantsMemberago:MeasurementInputExitMultipleEBITDAMemberus-gaap:MarketApproachValuationTechniqueMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberago:EquitySecuritiesAndWarrantsMemberago:MeasurementInputPriceToBookMemberus-gaap:MarketApproachValuationTechniqueMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberago:EquitySecuritiesAndWarrantsMemberago:MeasurementInputPriceToEarningsMemberus-gaap:MarketApproachValuationTechniqueMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:MeasurementInputCostToSellMemberus-gaap:IncomeApproachValuationTechniqueMemberago:EquitySecuritiesAndWarrantsMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:CorporateDebtSecuritiesMemberus-gaap:FairValueInputsLevel3Member2022-12-310001273813ago:ConsolidatedInvestmentVehiclesMembersrt:MinimumMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:CorporateDebtSecuritiesMemberus-gaap:MeasurementInputDiscountRateMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:CorporateDebtSecuritiesMemberus-gaap:MeasurementInputDiscountRateMembersrt:MaximumMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:CorporateDebtSecuritiesMembersrt:WeightedAverageMemberus-gaap:MeasurementInputDiscountRateMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:CorporateDebtSecuritiesMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:CorporateDebtSecuritiesMemberago:MeasurementInputExitMultipleEBITDAMemberus-gaap:MarketApproachValuationTechniqueMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:MeasurementInputCostToSellMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:CorporateDebtSecuritiesMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813ago:ConsolidatedInvestmentVehiclesMembersrt:MinimumMemberus-gaap:CorporateDebtSecuritiesMemberus-gaap:MarketApproachValuationTechniqueMemberus-gaap:MeasurementInputEbitdaMultipleMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:CorporateDebtSecuritiesMembersrt:MaximumMemberus-gaap:MarketApproachValuationTechniqueMemberus-gaap:MeasurementInputEbitdaMultipleMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:CorporateDebtSecuritiesMembersrt:WeightedAverageMemberus-gaap:MarketApproachValuationTechniqueMemberus-gaap:MeasurementInputEbitdaMultipleMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:IncomeApproachValuationTechniqueMemberago:StructuredProductsMemberus-gaap:FairValueInputsLevel3Member2022-12-310001273813ago:ConsolidatedInvestmentVehiclesMembersrt:MinimumMemberus-gaap:IncomeApproachValuationTechniqueMemberago:StructuredProductsMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:IncomeApproachValuationTechniqueMembersrt:MaximumMemberago:StructuredProductsMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:IncomeApproachValuationTechniqueMembersrt:WeightedAverageMemberago:StructuredProductsMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:OtherAssetsMemberus-gaap:FairValueInputsLevel3Member2022-12-310001273813srt:MinimumMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:OtherAssetsMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MaximumMemberus-gaap:OtherAssetsMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:WeightedAverageMemberus-gaap:OtherAssetsMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:OtherAssetsMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMemberus-gaap:FairValueInputsLevel3Member2022-12-310001273813srt:MinimumMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MaximumMemberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:WeightedAverageMemberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813srt:MinimumMemberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813srt:MaximumMemberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813srt:WeightedAverageMemberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberago:FinancialGuaranteeVariableInterestEntitiesMemberus-gaap:FairValueInputsLevel3Member2022-12-310001273813srt:MinimumMemberus-gaap:IncomeApproachValuationTechniqueMemberago:FinancialGuaranteeVariableInterestEntitiesMemberus-gaap:MeasurementInputPrepaymentRateMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MaximumMemberago:FinancialGuaranteeVariableInterestEntitiesMemberus-gaap:MeasurementInputPrepaymentRateMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:WeightedAverageMemberago:FinancialGuaranteeVariableInterestEntitiesMemberus-gaap:MeasurementInputPrepaymentRateMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813srt:MinimumMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:MeasurementInputDefaultRateMemberago:FinancialGuaranteeVariableInterestEntitiesMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MaximumMemberus-gaap:MeasurementInputDefaultRateMemberago:FinancialGuaranteeVariableInterestEntitiesMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:WeightedAverageMemberus-gaap:MeasurementInputDefaultRateMemberago:FinancialGuaranteeVariableInterestEntitiesMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813srt:MinimumMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:MeasurementInputLossSeverityMemberago:FinancialGuaranteeVariableInterestEntitiesMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:MeasurementInputLossSeverityMembersrt:MaximumMemberago:FinancialGuaranteeVariableInterestEntitiesMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:MeasurementInputLossSeverityMembersrt:WeightedAverageMemberago:FinancialGuaranteeVariableInterestEntitiesMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813srt:MinimumMemberus-gaap:IncomeApproachValuationTechniqueMemberago:FinancialGuaranteeVariableInterestEntitiesMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MaximumMemberago:FinancialGuaranteeVariableInterestEntitiesMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:WeightedAverageMemberago:FinancialGuaranteeVariableInterestEntitiesMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:CollateralizedLoanObligationsMemberus-gaap:FairValueInputsLevel3Member2022-12-310001273813srt:MinimumMemberus-gaap:IncomeApproachValuationTechniqueMemberago:ConsolidatedInvestmentVehiclesMemberago:CollateralizedLoanObligationsAtFairValueMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberago:ConsolidatedInvestmentVehiclesMemberago:CollateralizedLoanObligationsAtFairValueMembersrt:MaximumMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberago:ConsolidatedInvestmentVehiclesMembersrt:WeightedAverageMemberago:CollateralizedLoanObligationsAtFairValueMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:IncomeApproachValuationTechniqueMemberago:WarehouseFinancingDebtMemberus-gaap:FairValueInputsLevel3Member2022-12-310001273813srt:MinimumMemberus-gaap:IncomeApproachValuationTechniqueMemberago:ConsolidatedInvestmentVehiclesMemberago:WarehouseFinancingDebtMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberago:ConsolidatedInvestmentVehiclesMemberago:WarehouseFinancingDebtMembersrt:MaximumMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberago:ConsolidatedInvestmentVehiclesMemberago:WarehouseFinancingDebtMembersrt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:BorrowingsMemberus-gaap:FairValueInputsLevel3Member2022-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberago:ConsolidatedInvestmentVehiclesMemberus-gaap:MeasurementInputDiscountRateMemberus-gaap:BorrowingsMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberago:ConsolidatedInvestmentVehiclesMemberus-gaap:MeasurementInputLongTermRevenueGrowthRateMemberus-gaap:BorrowingsMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberago:ConsolidatedInvestmentVehiclesMemberus-gaap:BorrowingsMemberago:MeasurementInputExitMultipleEBITDAMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813srt:MinimumMemberago:ConsolidatedInvestmentVehiclesMemberus-gaap:BorrowingsMemberus-gaap:MarketApproachValuationTechniqueMemberus-gaap:MeasurementInputEbitdaMultipleMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813ago:ConsolidatedInvestmentVehiclesMembersrt:MaximumMemberus-gaap:BorrowingsMemberus-gaap:MarketApproachValuationTechniqueMemberus-gaap:MeasurementInputEbitdaMultipleMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813ago:ConsolidatedInvestmentVehiclesMembersrt:WeightedAverageMemberus-gaap:BorrowingsMemberus-gaap:MarketApproachValuationTechniqueMemberus-gaap:MeasurementInputEbitdaMultipleMemberus-gaap:FairValueInputsLevel3Member2022-01-012022-12-310001273813ago:OtherInvestedAssetsMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:FairValueInputsLevel3Member2022-12-310001273813ago:AssuredIMMember2022-01-012022-12-310001273813us-gaap:CarryingReportedAmountFairValueDisclosureMember2023-09-300001273813us-gaap:EstimateOfFairValueFairValueDisclosureMember2023-09-300001273813us-gaap:CarryingReportedAmountFairValueDisclosureMember2022-12-310001273813us-gaap:EstimateOfFairValueFairValueDisclosureMember2022-12-310001273813ago:AssetManagementFeesCLOsMember2023-07-012023-09-300001273813ago:AssetManagementFeesCLOsMember2022-07-012022-09-300001273813ago:AssetManagementFeesCLOsMember2023-01-012023-09-300001273813ago:AssetManagementFeesCLOsMember2022-01-012022-09-300001273813ago:PerformanceAllocationFeesMember2023-07-012023-09-300001273813ago:PerformanceAllocationFeesMember2022-07-012022-09-300001273813ago:PerformanceAllocationFeesMember2023-01-012023-09-300001273813ago:PerformanceAllocationFeesMember2022-01-012022-09-300001273813ago:ReimbursableFundExpenseMember2023-07-012023-09-300001273813ago:ReimbursableFundExpenseMember2022-07-012022-09-300001273813ago:ReimbursableFundExpenseMember2023-01-012023-09-300001273813ago:ReimbursableFundExpenseMember2022-01-012022-09-300001273813us-gaap:SeniorNotesMemberago:SeniorNotes5.0PercentMemberago:AssuredGuarantyUSHoldingIncMember2023-09-300001273813us-gaap:SeniorNotesMemberago:SeniorNotes5.0PercentMemberago:AssuredGuarantyUSHoldingIncMember2022-12-310001273813us-gaap:SeniorNotesMemberago:SeniorNotes6125PercentMemberago:AssuredGuarantyUSHoldingIncMember2023-09-300001273813us-gaap:SeniorNotesMemberago:SeniorNotes6125PercentMemberago:AssuredGuarantyUSHoldingIncMember2022-12-310001273813us-gaap:SeniorNotesMemberago:A315SeniorNotesMemberago:AssuredGuarantyUSHoldingIncMember2023-09-300001273813us-gaap:SeniorNotesMemberago:A315SeniorNotesMemberago:AssuredGuarantyUSHoldingIncMember2022-12-310001273813us-gaap:SeniorNotesMemberago:SeniorNotes70PercentMemberago:AssuredGuarantyUSHoldingIncMember2023-09-300001273813us-gaap:SeniorNotesMemberago:SeniorNotes70PercentMemberago:AssuredGuarantyUSHoldingIncMember2022-12-310001273813us-gaap:SeniorNotesMemberago:A36SeniorNotesMemberago:AssuredGuarantyUSHoldingIncMember2023-09-300001273813us-gaap:SeniorNotesMemberago:A36SeniorNotesMemberago:AssuredGuarantyUSHoldingIncMember2022-12-310001273813ago:EnhancedJuniorSubordinatedDebenturesMemberago:AssuredGuarantyUSHoldingIncMember2023-09-300001273813ago:EnhancedJuniorSubordinatedDebenturesMemberago:AssuredGuarantyUSHoldingIncMember2022-12-310001273813ago:AssuredGuarantyMunicipalHoldingsIncMemberus-gaap:JuniorSubordinatedDebtMember2023-09-300001273813ago:AssuredGuarantyMunicipalHoldingsIncMemberus-gaap:JuniorSubordinatedDebtMember2022-12-310001273813us-gaap:SeniorNotesMemberago:SeniorNotes6125PercentMemberago:AssuredGuarantyUSHoldingIncMember2023-08-210001273813us-gaap:SeniorNotesMemberago:SeniorNotes6125PercentMemberago:AssuredGuarantyUSHoldingIncMember2023-08-212023-08-210001273813us-gaap:SeniorNotesMemberago:SeniorNotes5.0PercentMemberago:AssuredGuarantyUSHoldingIncMember2023-09-252023-09-250001273813us-gaap:SeniorNotesMemberago:SeniorNotes6125PercentMemberago:AssuredGuarantyUSHoldingIncMember2023-08-162023-08-160001273813us-gaap:ForeignCountryMember2023-01-012023-09-300001273813country:FR2023-01-012023-09-300001273813country:GB2017-04-012023-03-310001273813country:GB2023-04-012023-04-010001273813us-gaap:SubsequentEventMembercountry:GB2023-01-012023-12-310001273813country:US2023-07-012023-09-300001273813country:US2022-07-012022-09-300001273813country:US2023-01-012023-09-300001273813country:US2022-01-012022-09-300001273813country:BM2023-07-012023-09-300001273813country:BM2022-07-012022-09-300001273813country:BM2023-01-012023-09-300001273813country:BM2022-01-012022-09-300001273813country:GB2023-07-012023-09-300001273813country:GB2022-07-012022-09-300001273813country:GB2023-01-012023-09-300001273813country:GB2022-01-012022-09-300001273813ago:OtherCountriesMember2023-07-012023-09-300001273813ago:OtherCountriesMember2022-07-012022-09-300001273813ago:OtherCountriesMember2023-01-012023-09-300001273813ago:OtherCountriesMember2022-01-012022-09-300001273813ago:AssuredGuarantyFinancialProductsIncMemberago:LehmanBrothersInternationalEuropeVsAgFinancialProductsIncMemberus-gaap:PositiveOutcomeOfLitigationMemberus-gaap:PendingLitigationMember2022-12-310001273813ago:AssuredGuarantyFinancialProductsIncMemberago:LehmanBrothersInternationalEuropeVsAgFinancialProductsIncMemberus-gaap:PositiveOutcomeOfLitigationMemberus-gaap:PendingLitigationMember2023-03-310001273813ago:AssuredGuarantyFinancialProductsIncMemberago:LehmanBrothersInternationalEuropeVsAgFinancialProductsIncMemberus-gaap:GuaranteeObligationsMember2011-11-28ago:Transaction0001273813ago:LehmanBrothersInternationalEuropeVsAgFinancialProductsIncMemberago:LehmanBrothersInternationalEuropeMember2011-11-280001273813ago:AssuredGuarantyFinancialProductsIncMemberago:LehmanBrothersInternationalEuropeVsAgFinancialProductsIncMemberus-gaap:PositiveOutcomeOfLitigationMemberus-gaap:PendingLitigationMember2011-11-280001273813ago:LehmanBrothersInternationalEuropeVsAgFinancialProductsIncMemberago:LehmanBrothersInternationalEuropeMemberus-gaap:PositiveOutcomeOfLitigationMemberus-gaap:PendingLitigationMember2011-11-280001273813ago:AssuredGuarantyFinancialProductsIncMemberago:LehmanBrothersInternationalEuropeVsAgFinancialProductsIncMemberus-gaap:GuaranteeObligationsMember2013-03-150001273813ago:LehmanBrothersInternationalEuropeVsAgFinancialProductsIncMemberus-gaap:PendingLitigationMember2023-06-302023-06-300001273813ago:LehmanBrothersInternationalEuropeVsAgFinancialProductsIncMemberus-gaap:PendingLitigationMember2023-07-012023-07-010001273813us-gaap:AociGainLossDebtSecuritiesAvailableForSaleWithoutAllowanceForCreditLossParentMember2023-06-300001273813us-gaap:AociGainLossDebtSecuritiesAvailableForSaleWithAllowanceForCreditLossParentMember2023-06-300001273813us-gaap:AccumulatedGainLossFinancialLiabilityFairValueOptionAttributableToParentMember2023-06-300001273813us-gaap:AccumulatedTranslationAdjustmentMember2023-06-300001273813us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2023-06-300001273813us-gaap:AociGainLossDebtSecuritiesAvailableForSaleWithoutAllowanceForCreditLossParentMember2023-07-012023-09-300001273813us-gaap:AociGainLossDebtSecuritiesAvailableForSaleWithAllowanceForCreditLossParentMember2023-07-012023-09-300001273813us-gaap:AccumulatedGainLossFinancialLiabilityFairValueOptionAttributableToParentMember2023-07-012023-09-300001273813us-gaap:AccumulatedTranslationAdjustmentMember2023-07-012023-09-300001273813us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2023-07-012023-09-300001273813us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberus-gaap:AociGainLossDebtSecuritiesAvailableForSaleWithoutAllowanceForCreditLossParentMember2023-07-012023-09-300001273813us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberus-gaap:AociGainLossDebtSecuritiesAvailableForSaleWithAllowanceForCreditLossParentMember2023-07-012023-09-300001273813us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberus-gaap:AccumulatedGainLossFinancialLiabilityFairValueOptionAttributableToParentMember2023-07-012023-09-300001273813us-gaap:AccumulatedTranslationAdjustmentMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2023-07-012023-09-300001273813us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberus-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2023-07-012023-09-300001273813us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2023-07-012023-09-300001273813us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberago:ConsolidatedInvestmentVehiclesMemberus-gaap:AociGainLossDebtSecuritiesAvailableForSaleWithoutAllowanceForCreditLossParentMember2023-07-012023-09-300001273813us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberago:ConsolidatedInvestmentVehiclesMemberus-gaap:AociGainLossDebtSecuritiesAvailableForSaleWithAllowanceForCreditLossParentMember2023-07-012023-09-300001273813us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberus-gaap:AccumulatedGainLossFinancialLiabilityFairValueOptionAttributableToParentMemberago:ConsolidatedInvestmentVehiclesMember2023-07-012023-09-300001273813us-gaap:AccumulatedTranslationAdjustmentMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberago:ConsolidatedInvestmentVehiclesMember2023-07-012023-09-300001273813us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberago:ConsolidatedInvestmentVehiclesMemberus-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2023-07-012023-09-300001273813us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberago:ConsolidatedInvestmentVehiclesMember2023-07-012023-09-300001273813us-gaap:AociGainLossDebtSecuritiesAvailableForSaleWithoutAllowanceForCreditLossParentMember2023-09-300001273813us-gaap:AociGainLossDebtSecuritiesAvailableForSaleWithAllowanceForCreditLossParentMember2023-09-300001273813us-gaap:AccumulatedGainLossFinancialLiabilityFairValueOptionAttributableToParentMember2023-09-300001273813us-gaap:AccumulatedTranslationAdjustmentMember2023-09-300001273813us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2023-09-300001273813us-gaap:AociGainLossDebtSecuritiesAvailableForSaleWithoutAllowanceForCreditLossParentMember2022-06-300001273813us-gaap:AociGainLossDebtSecuritiesAvailableForSaleWithAllowanceForCreditLossParentMember2022-06-300001273813us-gaap:AccumulatedGainLossFinancialLiabilityFairValueOptionAttributableToParentMember2022-06-300001273813us-gaap:AccumulatedTranslationAdjustmentMember2022-06-300001273813us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2022-06-300001273813us-gaap:AociGainLossDebtSecuritiesAvailableForSaleWithoutAllowanceForCreditLossParentMember2022-07-012022-09-300001273813us-gaap:AociGainLossDebtSecuritiesAvailableForSaleWithAllowanceForCreditLossParentMember2022-07-012022-09-300001273813us-gaap:AccumulatedGainLossFinancialLiabilityFairValueOptionAttributableToParentMember2022-07-012022-09-300001273813us-gaap:AccumulatedTranslationAdjustmentMember2022-07-012022-09-300001273813us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2022-07-012022-09-300001273813us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberus-gaap:AociGainLossDebtSecuritiesAvailableForSaleWithoutAllowanceForCreditLossParentMember2022-07-012022-09-300001273813us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberus-gaap:AociGainLossDebtSecuritiesAvailableForSaleWithAllowanceForCreditLossParentMember2022-07-012022-09-300001273813us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberus-gaap:AccumulatedGainLossFinancialLiabilityFairValueOptionAttributableToParentMember2022-07-012022-09-300001273813us-gaap:AccumulatedTranslationAdjustmentMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2022-07-012022-09-300001273813us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberus-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2022-07-012022-09-300001273813us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2022-07-012022-09-300001273813us-gaap:AociGainLossDebtSecuritiesAvailableForSaleWithoutAllowanceForCreditLossParentMember2022-09-300001273813us-gaap:AociGainLossDebtSecuritiesAvailableForSaleWithAllowanceForCreditLossParentMember2022-09-300001273813us-gaap:AccumulatedGainLossFinancialLiabilityFairValueOptionAttributableToParentMember2022-09-300001273813us-gaap:AccumulatedTranslationAdjustmentMember2022-09-300001273813us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2022-09-300001273813us-gaap:AociGainLossDebtSecuritiesAvailableForSaleWithoutAllowanceForCreditLossParentMember2022-12-310001273813us-gaap:AociGainLossDebtSecuritiesAvailableForSaleWithAllowanceForCreditLossParentMember2022-12-310001273813us-gaap:AccumulatedGainLossFinancialLiabilityFairValueOptionAttributableToParentMember2022-12-310001273813us-gaap:AccumulatedTranslationAdjustmentMember2022-12-310001273813us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2022-12-310001273813us-gaap:AociGainLossDebtSecuritiesAvailableForSaleWithoutAllowanceForCreditLossParentMember2023-01-012023-09-300001273813us-gaap:AociGainLossDebtSecuritiesAvailableForSaleWithAllowanceForCreditLossParentMember2023-01-012023-09-300001273813us-gaap:AccumulatedGainLossFinancialLiabilityFairValueOptionAttributableToParentMember2023-01-012023-09-300001273813us-gaap:AccumulatedTranslationAdjustmentMember2023-01-012023-09-300001273813us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2023-01-012023-09-300001273813us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberus-gaap:AociGainLossDebtSecuritiesAvailableForSaleWithoutAllowanceForCreditLossParentMember2023-01-012023-09-300001273813us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberus-gaap:AociGainLossDebtSecuritiesAvailableForSaleWithAllowanceForCreditLossParentMember2023-01-012023-09-300001273813us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberus-gaap:AccumulatedGainLossFinancialLiabilityFairValueOptionAttributableToParentMember2023-01-012023-09-300001273813us-gaap:AccumulatedTranslationAdjustmentMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2023-01-012023-09-300001273813us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberus-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2023-01-012023-09-300001273813us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2023-01-012023-09-300001273813ago:FinancialGuarantyVariableInterestEntitiesMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberus-gaap:AociGainLossDebtSecuritiesAvailableForSaleWithoutAllowanceForCreditLossParentMember2023-01-012023-09-300001273813ago:FinancialGuarantyVariableInterestEntitiesMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberus-gaap:AociGainLossDebtSecuritiesAvailableForSaleWithAllowanceForCreditLossParentMember2023-01-012023-09-300001273813ago:FinancialGuarantyVariableInterestEntitiesMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberus-gaap:AccumulatedGainLossFinancialLiabilityFairValueOptionAttributableToParentMember2023-01-012023-09-300001273813ago:FinancialGuarantyVariableInterestEntitiesMemberus-gaap:AccumulatedTranslationAdjustmentMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2023-01-012023-09-300001273813ago:FinancialGuarantyVariableInterestEntitiesMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberus-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2023-01-012023-09-300001273813ago:FinancialGuarantyVariableInterestEntitiesMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2023-01-012023-09-300001273813us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberago:ConsolidatedInvestmentVehiclesMemberus-gaap:AociGainLossDebtSecuritiesAvailableForSaleWithoutAllowanceForCreditLossParentMember2023-01-012023-09-300001273813us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberago:ConsolidatedInvestmentVehiclesMemberus-gaap:AociGainLossDebtSecuritiesAvailableForSaleWithAllowanceForCreditLossParentMember2023-01-012023-09-300001273813us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberus-gaap:AccumulatedGainLossFinancialLiabilityFairValueOptionAttributableToParentMemberago:ConsolidatedInvestmentVehiclesMember2023-01-012023-09-300001273813us-gaap:AccumulatedTranslationAdjustmentMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberago:ConsolidatedInvestmentVehiclesMember2023-01-012023-09-300001273813us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberago:ConsolidatedInvestmentVehiclesMemberus-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2023-01-012023-09-300001273813us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberago:ConsolidatedInvestmentVehiclesMember2023-01-012023-09-300001273813us-gaap:AociGainLossDebtSecuritiesAvailableForSaleWithoutAllowanceForCreditLossParentMember2021-12-310001273813us-gaap:AociGainLossDebtSecuritiesAvailableForSaleWithAllowanceForCreditLossParentMember2021-12-310001273813us-gaap:AccumulatedGainLossFinancialLiabilityFairValueOptionAttributableToParentMember2021-12-310001273813us-gaap:AccumulatedTranslationAdjustmentMember2021-12-310001273813us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2021-12-310001273813us-gaap:AociGainLossDebtSecuritiesAvailableForSaleWithoutAllowanceForCreditLossParentMember2022-01-012022-09-300001273813us-gaap:AociGainLossDebtSecuritiesAvailableForSaleWithAllowanceForCreditLossParentMember2022-01-012022-09-300001273813us-gaap:AccumulatedGainLossFinancialLiabilityFairValueOptionAttributableToParentMember2022-01-012022-09-300001273813us-gaap:AccumulatedTranslationAdjustmentMember2022-01-012022-09-300001273813us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2022-01-012022-09-300001273813us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberus-gaap:AociGainLossDebtSecuritiesAvailableForSaleWithoutAllowanceForCreditLossParentMember2022-01-012022-09-300001273813us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberus-gaap:AociGainLossDebtSecuritiesAvailableForSaleWithAllowanceForCreditLossParentMember2022-01-012022-09-300001273813us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberus-gaap:AccumulatedGainLossFinancialLiabilityFairValueOptionAttributableToParentMember2022-01-012022-09-300001273813us-gaap:AccumulatedTranslationAdjustmentMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2022-01-012022-09-300001273813us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberus-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2022-01-012022-09-300001273813us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2022-01-012022-09-300001273813us-gaap:SubsequentEventMemberus-gaap:CommonStockMember2023-11-010001273813us-gaap:SubsequentEventMemberus-gaap:CommonStockMember2023-11-070001273813us-gaap:CommonStockMember2022-01-012022-03-310001273813us-gaap:CommonStockMember2022-04-012022-06-300001273813us-gaap:CommonStockMember2022-10-012022-12-310001273813us-gaap:CommonStockMember2022-01-012022-12-310001273813us-gaap:CommonStockMember2023-01-012023-03-310001273813us-gaap:CommonStockMember2023-04-012023-06-300001273813us-gaap:SubsequentEventMemberus-gaap:CommonStockMember2023-10-012023-11-070001273813us-gaap:SubsequentEventMemberus-gaap:CommonStockMember2023-01-012023-11-07
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
____________________________________________________________________________
FORM 10-Q
| | | | | | | | |
☒ | | QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 |
For the Quarterly Period Ended September 30, 2023
or
| | | | | | | | |
☐ | | TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 |
For the transition Period from to
Commission File No. 001-32141
ASSURED GUARANTY LTD.
(Exact name of registrant as specified in its charter)
| | | | | | | | |
Bermuda | | 98-0429991 |
(State or other jurisdiction of incorporation) | | (I.R.S. employer identification no.) |
30 Woodbourne Avenue
Hamilton HM 08, Bermuda
(Address of principal executive offices)
(441) 279-5700
(Registrant’s telephone number, including area code)
Securities registered pursuant to Section 12(b) of the Act:
| | | | | | | | | | | |
Title of each class: | Trading Symbol(s) | Name of exchange on which registered |
Common Shares | $0.01 par value per share | AGO | New York Stock Exchange |
Assured Guaranty US Holdings Inc. 6.125% Senior Notes due 2028 (and the related guarantee of Registrant) | AGO/28 | New York Stock Exchange |
Assured Guaranty US Holdings Inc. 3.150% Senior Notes due 2031 (and the related guarantee of Registrant) | AGO/31 | New York Stock Exchange |
Assured Guaranty US Holdings Inc. 3.600% Senior Notes due 2051 (and the related guarantee of Registrant) | AGO/51 | New York Stock Exchange |
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ☒ No ☐
Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes ☒ No ☐
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. See definition of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Large accelerated filer | ☒ | Accelerated filer | ☐ | Non-accelerated filer | ☐ | Smaller reporting company | ☐ | Emerging growth company | ☐ |
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. o
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐ No ☒
The number of registrant’s Common Shares ($0.01 par value) outstanding as of November 6, 2023 was 57,256,573 (includes 38,464 unvested restricted shares).
ASSURED GUARANTY LTD.
INDEX TO FORM 10-Q
PART I. FINANCIAL INFORMATION
ITEM 1. FINANCIAL STATEMENTS
Assured Guaranty Ltd.
Condensed Consolidated Balance Sheets (Unaudited)
(dollars in millions except share data)
| | | | | | | | | | | |
| As of |
| September 30, 2023 | | December 31, 2022 |
Assets | | | |
Investments: | | | |
Fixed-maturity securities, available-for-sale, at fair value, net of allowance for credit loss of $86 and $65 (amortized cost of $6,971 and $7,707) | $ | 6,267 | | | $ | 7,119 | |
Fixed-maturity securities, trading, at fair value | 350 | | | 303 | |
Short-term investments, at fair value | 1,426 | | | 810 | |
Other invested assets | 765 | | | 133 | |
Total investments | 8,808 | | | 8,365 | |
Cash | 108 | | | 107 | |
Premiums receivable, net of commissions payable | 1,376 | | | 1,298 | |
Deferred acquisition costs | 158 | | | 147 | |
Salvage and subrogation recoverable | 282 | | | 257 | |
Financial guaranty variable interest entities’ assets (includes $326 and $413, at fair value) | 327 | | | 416 | |
Assets of consolidated investment vehicles (includes $318 and $5,363, at fair value) | 330 | | | 5,493 | |
Goodwill and other intangible assets | 6 | | | 163 | |
Other assets (includes $112 and $148, at fair value) | 549 | | | 597 | |
Total assets | $ | 11,944 | | | $ | 16,843 | |
Liabilities | | | |
Unearned premium reserve | $ | 3,600 | | | $ | 3,620 | |
Loss and loss adjustment expense reserve | 361 | | | 296 | |
Long-term debt | 1,693 | | | 1,675 | |
Credit derivative liabilities, at fair value | 50 | | | 163 | |
Financial guaranty variable interest entities’ liabilities, at fair value (with recourse $531 and $702, without recourse $11 and $13) | 542 | | | 715 | |
Liabilities of consolidated investment vehicles (includes $0 and $4,431, at fair value) | 4 | | | 4,625 | |
Other liabilities | 393 | | | 457 | |
Total liabilities | 6,643 | | | 11,551 | |
Commitments and contingencies (Note 13) | | | |
Shareholders’ equity | | | |
Common shares ($0.01 par value, 500,000,000 shares authorized; 57,819,732 and 59,013,040 shares issued and outstanding) | 1 | | | 1 | |
Retained earnings | 5,815 | | | 5,577 | |
Accumulated other comprehensive income (loss), net of tax of $(97) and $(84) | (565) | | | (515) | |
Deferred equity compensation | 1 | | | 1 | |
Total shareholders’ equity attributable to Assured Guaranty Ltd. | 5,252 | | | 5,064 | |
Nonredeemable noncontrolling interests (Note 8) | 49 | | | 228 | |
Total shareholders’ equity | 5,301 | | | 5,292 | |
Total liabilities and shareholders’ equity | $ | 11,944 | | | $ | 16,843 | |
The accompanying notes are an integral part of these condensed consolidated financial statements.
Assured Guaranty Ltd.
Condensed Consolidated Statements of Operations (Unaudited)
(dollars in millions except share data)
| | | | | | | | | | | | | | | | | | | | | | | |
| Three Months Ended September 30, | | Nine Months Ended September 30, |
| 2023 | | 2022 | | 2023 | | 2022 |
Revenues | | | | | | | |
Net earned premiums | $ | 95 | | | $ | 89 | | | $ | 261 | | | $ | 385 | |
Net investment income | 100 | | | 67 | | | 270 | | | 191 | |
Asset management fees | — | | | 16 | | | 53 | | | 71 | |
Net realized investment gains (losses) | (9) | | | (14) | | | (20) | | | (39) | |
Fair value gains (losses) on credit derivatives | 9 | | | (48) | | | 115 | | | (42) | |
Fair value gain |