ago-202112310001273813FALSE2021FYP6M0.491.320.410.160.360.09110.0800.3710.126—1.8780.6790.088110.000300.0001,050.000895.000185.0001,050.0000.1900.9900.3200.4703.2900.9300.1500.3000.210P5Y7.005.003.153.606.8756.255.602.502.00five yearsP3YP3YP4Yhttp://fasb.org/us-gaap/2021-01-31#OtherLiabilities00012738132021-01-012021-12-310001273813exch:XNYSus-gaap:CommonStockMember2021-01-012021-12-310001273813exch:XNYSago:AssuredGuarantyUSHoldingsInc5000SeniorNotesDue2024Member2021-01-012021-12-310001273813exch:XNYSago:AssuredGuarantyUSHoldingsInc3150SeniorNotesDue2031Member2021-01-012021-12-310001273813exch:XNYSago:AssuredGuarantyUSHoldingsInc3600SeniorNotesDue2051Member2021-01-012021-12-3100012738132021-06-30iso4217:USD00012738132022-02-22xbrli:shares00012738132021-12-3100012738132020-12-310001273813us-gaap:FixedMaturitiesMember2021-12-310001273813us-gaap:FixedMaturitiesMember2020-12-31iso4217:USDxbrli:shares00012738132020-01-012020-12-3100012738132019-01-012019-12-310001273813us-gaap:CommonStockMember2018-12-310001273813us-gaap:AdditionalPaidInCapitalMember2018-12-310001273813us-gaap:RetainedEarningsMember2018-12-310001273813us-gaap:AccumulatedOtherComprehensiveIncomeMember2018-12-310001273813us-gaap:DeferredCompensationShareBasedPaymentsMember2018-12-310001273813us-gaap:ParentMember2018-12-310001273813us-gaap:NoncontrollingInterestMember2018-12-3100012738132018-12-310001273813us-gaap:RetainedEarningsMember2019-01-012019-12-310001273813us-gaap:ParentMember2019-01-012019-12-310001273813us-gaap:CommonStockMember2019-01-012019-12-310001273813us-gaap:AdditionalPaidInCapitalMember2019-01-012019-12-310001273813us-gaap:NoncontrollingInterestMember2019-01-012019-12-310001273813us-gaap:AccumulatedOtherComprehensiveIncomeMember2019-01-012019-12-310001273813us-gaap:CommonStockMember2019-12-310001273813us-gaap:AdditionalPaidInCapitalMember2019-12-310001273813us-gaap:RetainedEarningsMember2019-12-310001273813us-gaap:AccumulatedOtherComprehensiveIncomeMember2019-12-310001273813us-gaap:DeferredCompensationShareBasedPaymentsMember2019-12-310001273813us-gaap:ParentMember2019-12-310001273813us-gaap:NoncontrollingInterestMember2019-12-3100012738132019-12-310001273813us-gaap:RetainedEarningsMember2020-01-012020-12-310001273813us-gaap:ParentMember2020-01-012020-12-310001273813us-gaap:NoncontrollingInterestMember2020-01-012020-12-310001273813us-gaap:CommonStockMember2020-01-012020-12-310001273813us-gaap:AccumulatedOtherComprehensiveIncomeMember2020-01-012020-12-310001273813us-gaap:CommonStockMember2020-12-310001273813us-gaap:AdditionalPaidInCapitalMember2020-12-310001273813us-gaap:RetainedEarningsMember2020-12-310001273813us-gaap:AccumulatedOtherComprehensiveIncomeMember2020-12-310001273813us-gaap:DeferredCompensationShareBasedPaymentsMember2020-12-310001273813us-gaap:ParentMember2020-12-310001273813us-gaap:NoncontrollingInterestMember2020-12-310001273813us-gaap:RetainedEarningsMember2021-01-012021-12-310001273813us-gaap:ParentMember2021-01-012021-12-310001273813us-gaap:NoncontrollingInterestMember2021-01-012021-12-310001273813us-gaap:CommonStockMember2021-01-012021-12-310001273813us-gaap:AccumulatedOtherComprehensiveIncomeMember2021-01-012021-12-310001273813us-gaap:CommonStockMember2021-12-310001273813us-gaap:AdditionalPaidInCapitalMember2021-12-310001273813us-gaap:RetainedEarningsMember2021-12-310001273813us-gaap:AccumulatedOtherComprehensiveIncomeMember2021-12-310001273813us-gaap:DeferredCompensationShareBasedPaymentsMember2021-12-310001273813us-gaap:ParentMember2021-12-310001273813us-gaap:NoncontrollingInterestMember2021-12-31ago:Company0001273813ago:BlueMountainCapitalManagementLLCMember2019-10-012019-10-010001273813ago:BlueMountainCapitalManagementLLCMember2020-02-012020-02-290001273813ago:AGMAGCandMACMemberago:BlueMountainCapitalManagementLLCMember2019-10-012019-10-010001273813ago:AGMAGCandMACMemberago:BlueMountainCapitalManagementLLCMember2019-10-01xbrli:pure0001273813ago:BlueMountainCapitalManagementLLCMember2021-01-012021-12-310001273813ago:BlueMountainCapitalManagementLLCMember2019-10-010001273813ago:BlueMountainCapitalManagementLLCMember2019-10-012019-12-310001273813ago:BlueMountainCapitalManagementLLCMember2019-01-012019-12-310001273813ago:BlueMountainCapitalManagementLLCMemberus-gaap:CollateralizedLoanObligationsMember2019-10-012019-10-010001273813us-gaap:InvestmentContractsMemberago:BlueMountainCapitalManagementLLCMember2019-10-012019-10-010001273813ago:CollateralizedLoanObligationsDistributionNetworkMemberago:BlueMountainCapitalManagementLLCMember2019-10-012019-10-010001273813ago:BlueMountainCapitalManagementLLCMemberus-gaap:TradeNamesMember2019-10-012019-10-010001273813ago:FavorableSubleaseMemberago:BlueMountainCapitalManagementLLCMember2019-10-012019-10-01ago:segment0001273813ago:InsuranceSegmentMemberus-gaap:OperatingSegmentsMember2021-01-012021-12-310001273813ago:AssetManagementSegmentMemberus-gaap:OperatingSegmentsMember2021-01-012021-12-310001273813ago:InsuranceSegmentMemberus-gaap:OperatingSegmentsMember2020-01-012020-12-310001273813ago:AssetManagementSegmentMemberus-gaap:OperatingSegmentsMember2020-01-012020-12-310001273813ago:InsuranceSegmentMemberus-gaap:OperatingSegmentsMember2019-01-012019-12-310001273813ago:AssetManagementSegmentMemberus-gaap:OperatingSegmentsMember2019-01-012019-12-310001273813ago:InsuranceSegmentMemberus-gaap:IntersegmentEliminationMember2021-01-012021-12-310001273813ago:AssetManagementSegmentMemberus-gaap:IntersegmentEliminationMember2021-01-012021-12-310001273813ago:InsuranceSegmentMemberus-gaap:IntersegmentEliminationMember2020-01-012020-12-310001273813ago:AssetManagementSegmentMemberus-gaap:IntersegmentEliminationMember2020-01-012020-12-310001273813ago:InsuranceSegmentMemberus-gaap:IntersegmentEliminationMember2019-01-012019-12-310001273813ago:AssetManagementSegmentMemberus-gaap:IntersegmentEliminationMember2019-01-012019-12-310001273813us-gaap:OperatingSegmentsMember2021-01-012021-12-310001273813us-gaap:CorporateNonSegmentMember2021-01-012021-12-310001273813ago:OtherNonSegmentMember2021-01-012021-12-310001273813ago:OperatingSegmentsAndCorporateNonSegmentMember2021-01-012021-12-310001273813ago:SegmentReconcilingItemsRealizedInvestmentGainsLossesMemberago:RevenueMember2021-01-012021-12-310001273813ago:SegmentReconcilingItemsRealizedInvestmentGainsLossesMemberago:BenefitsLossesAndExpensesMember2021-01-012021-12-310001273813ago:SegmentReconcilingItemsRealizedInvestmentGainsLossesMemberus-gaap:EquityMethodInvestmentsMember2021-01-012021-12-310001273813ago:SegmentReconcilingItemsRealizedInvestmentGainsLossesMemberago:IncomeTaxExpenseBenefitMember2021-01-012021-12-310001273813ago:SegmentReconcilingItemsRealizedInvestmentGainsLossesMemberus-gaap:NoncontrollingInterestMember2021-01-012021-12-310001273813ago:SegmentReconcilingItemsRealizedInvestmentGainsLossesMemberago:NetIncomeLossAttributableToParentMember2021-01-012021-12-310001273813ago:SegmentReconcilingItemsUnrealizedGainLossOnDerivativesAndCommodityContractsMemberago:RevenueMember2021-01-012021-12-310001273813ago:BenefitsLossesAndExpensesMemberago:SegmentReconcilingItemsUnrealizedGainLossOnDerivativesAndCommodityContractsMember2021-01-012021-12-310001273813us-gaap:EquityMethodInvestmentsMemberago:SegmentReconcilingItemsUnrealizedGainLossOnDerivativesAndCommodityContractsMember2021-01-012021-12-310001273813ago:SegmentReconcilingItemsUnrealizedGainLossOnDerivativesAndCommodityContractsMemberago:IncomeTaxExpenseBenefitMember2021-01-012021-12-310001273813ago:SegmentReconcilingItemsUnrealizedGainLossOnDerivativesAndCommodityContractsMemberus-gaap:NoncontrollingInterestMember2021-01-012021-12-310001273813ago:NetIncomeLossAttributableToParentMemberago:SegmentReconcilingItemsUnrealizedGainLossOnDerivativesAndCommodityContractsMember2021-01-012021-12-310001273813ago:SegmentReconcilingItemsFairValueGainLossOnCommittedCapitalSecuritiesMemberago:RevenueMember2021-01-012021-12-310001273813ago:SegmentReconcilingItemsFairValueGainLossOnCommittedCapitalSecuritiesMemberago:BenefitsLossesAndExpensesMember2021-01-012021-12-310001273813ago:SegmentReconcilingItemsFairValueGainLossOnCommittedCapitalSecuritiesMemberus-gaap:EquityMethodInvestmentsMember2021-01-012021-12-310001273813ago:SegmentReconcilingItemsFairValueGainLossOnCommittedCapitalSecuritiesMemberago:IncomeTaxExpenseBenefitMember2021-01-012021-12-310001273813ago:SegmentReconcilingItemsFairValueGainLossOnCommittedCapitalSecuritiesMemberus-gaap:NoncontrollingInterestMember2021-01-012021-12-310001273813ago:SegmentReconcilingItemsFairValueGainLossOnCommittedCapitalSecuritiesMemberago:NetIncomeLossAttributableToParentMember2021-01-012021-12-310001273813ago:SegmentReconcilingItemsFinancialGuaranteeInsuranceContractsPremiumReceivableAdjustmentForeignExchangeTranslationMemberago:RevenueMember2021-01-012021-12-310001273813ago:BenefitsLossesAndExpensesMemberago:SegmentReconcilingItemsFinancialGuaranteeInsuranceContractsPremiumReceivableAdjustmentForeignExchangeTranslationMember2021-01-012021-12-310001273813us-gaap:EquityMethodInvestmentsMemberago:SegmentReconcilingItemsFinancialGuaranteeInsuranceContractsPremiumReceivableAdjustmentForeignExchangeTranslationMember2021-01-012021-12-310001273813ago:SegmentReconcilingItemsFinancialGuaranteeInsuranceContractsPremiumReceivableAdjustmentForeignExchangeTranslationMemberago:IncomeTaxExpenseBenefitMember2021-01-012021-12-310001273813ago:SegmentReconcilingItemsFinancialGuaranteeInsuranceContractsPremiumReceivableAdjustmentForeignExchangeTranslationMemberus-gaap:NoncontrollingInterestMember2021-01-012021-12-310001273813ago:NetIncomeLossAttributableToParentMemberago:SegmentReconcilingItemsFinancialGuaranteeInsuranceContractsPremiumReceivableAdjustmentForeignExchangeTranslationMember2021-01-012021-12-310001273813ago:SegmentReconcilingItemsAdjustmentsToOperatingIncomeTaxMemberago:RevenueMember2021-01-012021-12-310001273813ago:SegmentReconcilingItemsAdjustmentsToOperatingIncomeTaxMemberago:BenefitsLossesAndExpensesMember2021-01-012021-12-310001273813ago:SegmentReconcilingItemsAdjustmentsToOperatingIncomeTaxMemberus-gaap:EquityMethodInvestmentsMember2021-01-012021-12-310001273813ago:SegmentReconcilingItemsAdjustmentsToOperatingIncomeTaxMemberago:IncomeTaxExpenseBenefitMember2021-01-012021-12-310001273813ago:SegmentReconcilingItemsAdjustmentsToOperatingIncomeTaxMemberus-gaap:NoncontrollingInterestMember2021-01-012021-12-310001273813ago:NetIncomeLossAttributableToParentMemberago:SegmentReconcilingItemsAdjustmentsToOperatingIncomeTaxMember2021-01-012021-12-310001273813ago:RevenueMember2021-01-012021-12-310001273813ago:BenefitsLossesAndExpensesMember2021-01-012021-12-310001273813us-gaap:EquityMethodInvestmentsMember2021-01-012021-12-310001273813ago:IncomeTaxExpenseBenefitMember2021-01-012021-12-310001273813us-gaap:NoncontrollingInterestMember2021-01-012021-12-310001273813ago:NetIncomeLossAttributableToParentMember2021-01-012021-12-310001273813us-gaap:OperatingSegmentsMember2020-01-012020-12-310001273813us-gaap:CorporateNonSegmentMember2020-01-012020-12-310001273813ago:OtherNonSegmentMember2020-01-012020-12-310001273813ago:OperatingSegmentsAndCorporateNonSegmentMember2020-01-012020-12-310001273813ago:SegmentReconcilingItemsRealizedInvestmentGainsLossesMemberago:RevenueMember2020-01-012020-12-310001273813ago:SegmentReconcilingItemsRealizedInvestmentGainsLossesMemberago:BenefitsLossesAndExpensesMember2020-01-012020-12-310001273813ago:SegmentReconcilingItemsRealizedInvestmentGainsLossesMemberus-gaap:EquityMethodInvestmentsMember2020-01-012020-12-310001273813ago:SegmentReconcilingItemsRealizedInvestmentGainsLossesMemberago:IncomeTaxExpenseBenefitMember2020-01-012020-12-310001273813ago:SegmentReconcilingItemsRealizedInvestmentGainsLossesMemberus-gaap:NoncontrollingInterestMember2020-01-012020-12-310001273813ago:SegmentReconcilingItemsRealizedInvestmentGainsLossesMemberago:NetIncomeLossAttributableToParentMember2020-01-012020-12-310001273813ago:SegmentReconcilingItemsUnrealizedGainLossOnDerivativesAndCommodityContractsMemberago:RevenueMember2020-01-012020-12-310001273813ago:BenefitsLossesAndExpensesMemberago:SegmentReconcilingItemsUnrealizedGainLossOnDerivativesAndCommodityContractsMember2020-01-012020-12-310001273813us-gaap:EquityMethodInvestmentsMemberago:SegmentReconcilingItemsUnrealizedGainLossOnDerivativesAndCommodityContractsMember2020-01-012020-12-310001273813ago:SegmentReconcilingItemsUnrealizedGainLossOnDerivativesAndCommodityContractsMemberago:IncomeTaxExpenseBenefitMember2020-01-012020-12-310001273813ago:SegmentReconcilingItemsUnrealizedGainLossOnDerivativesAndCommodityContractsMemberus-gaap:NoncontrollingInterestMember2020-01-012020-12-310001273813ago:NetIncomeLossAttributableToParentMemberago:SegmentReconcilingItemsUnrealizedGainLossOnDerivativesAndCommodityContractsMember2020-01-012020-12-310001273813ago:SegmentReconcilingItemsFairValueGainLossOnCommittedCapitalSecuritiesMemberago:RevenueMember2020-01-012020-12-310001273813ago:SegmentReconcilingItemsFairValueGainLossOnCommittedCapitalSecuritiesMemberago:BenefitsLossesAndExpensesMember2020-01-012020-12-310001273813ago:SegmentReconcilingItemsFairValueGainLossOnCommittedCapitalSecuritiesMemberus-gaap:EquityMethodInvestmentsMember2020-01-012020-12-310001273813ago:SegmentReconcilingItemsFairValueGainLossOnCommittedCapitalSecuritiesMemberago:IncomeTaxExpenseBenefitMember2020-01-012020-12-310001273813ago:SegmentReconcilingItemsFairValueGainLossOnCommittedCapitalSecuritiesMemberus-gaap:NoncontrollingInterestMember2020-01-012020-12-310001273813ago:SegmentReconcilingItemsFairValueGainLossOnCommittedCapitalSecuritiesMemberago:NetIncomeLossAttributableToParentMember2020-01-012020-12-310001273813ago:SegmentReconcilingItemsFinancialGuaranteeInsuranceContractsPremiumReceivableAdjustmentForeignExchangeTranslationMemberago:RevenueMember2020-01-012020-12-310001273813ago:BenefitsLossesAndExpensesMemberago:SegmentReconcilingItemsFinancialGuaranteeInsuranceContractsPremiumReceivableAdjustmentForeignExchangeTranslationMember2020-01-012020-12-310001273813us-gaap:EquityMethodInvestmentsMemberago:SegmentReconcilingItemsFinancialGuaranteeInsuranceContractsPremiumReceivableAdjustmentForeignExchangeTranslationMember2020-01-012020-12-310001273813ago:SegmentReconcilingItemsFinancialGuaranteeInsuranceContractsPremiumReceivableAdjustmentForeignExchangeTranslationMemberago:IncomeTaxExpenseBenefitMember2020-01-012020-12-310001273813ago:SegmentReconcilingItemsFinancialGuaranteeInsuranceContractsPremiumReceivableAdjustmentForeignExchangeTranslationMemberus-gaap:NoncontrollingInterestMember2020-01-012020-12-310001273813ago:NetIncomeLossAttributableToParentMemberago:SegmentReconcilingItemsFinancialGuaranteeInsuranceContractsPremiumReceivableAdjustmentForeignExchangeTranslationMember2020-01-012020-12-310001273813ago:SegmentReconcilingItemsAdjustmentsToOperatingIncomeTaxMemberago:RevenueMember2020-01-012020-12-310001273813ago:SegmentReconcilingItemsAdjustmentsToOperatingIncomeTaxMemberago:BenefitsLossesAndExpensesMember2020-01-012020-12-310001273813ago:SegmentReconcilingItemsAdjustmentsToOperatingIncomeTaxMemberus-gaap:EquityMethodInvestmentsMember2020-01-012020-12-310001273813ago:SegmentReconcilingItemsAdjustmentsToOperatingIncomeTaxMemberago:IncomeTaxExpenseBenefitMember2020-01-012020-12-310001273813ago:SegmentReconcilingItemsAdjustmentsToOperatingIncomeTaxMemberus-gaap:NoncontrollingInterestMember2020-01-012020-12-310001273813ago:NetIncomeLossAttributableToParentMemberago:SegmentReconcilingItemsAdjustmentsToOperatingIncomeTaxMember2020-01-012020-12-310001273813ago:RevenueMember2020-01-012020-12-310001273813ago:BenefitsLossesAndExpensesMember2020-01-012020-12-310001273813us-gaap:EquityMethodInvestmentsMember2020-01-012020-12-310001273813ago:IncomeTaxExpenseBenefitMember2020-01-012020-12-310001273813us-gaap:NoncontrollingInterestMember2020-01-012020-12-310001273813ago:NetIncomeLossAttributableToParentMember2020-01-012020-12-310001273813us-gaap:OperatingSegmentsMember2019-01-012019-12-310001273813us-gaap:CorporateNonSegmentMember2019-01-012019-12-310001273813ago:OtherNonSegmentMember2019-01-012019-12-310001273813ago:OperatingSegmentsAndCorporateNonSegmentMember2019-01-012019-12-310001273813ago:SegmentReconcilingItemsRealizedInvestmentGainsLossesMemberago:RevenueMember2019-01-012019-12-310001273813ago:SegmentReconcilingItemsRealizedInvestmentGainsLossesMemberago:BenefitsLossesAndExpensesMember2019-01-012019-12-310001273813ago:SegmentReconcilingItemsRealizedInvestmentGainsLossesMemberus-gaap:EquityMethodInvestmentsMember2019-01-012019-12-310001273813ago:SegmentReconcilingItemsRealizedInvestmentGainsLossesMemberago:IncomeTaxExpenseBenefitMember2019-01-012019-12-310001273813ago:SegmentReconcilingItemsRealizedInvestmentGainsLossesMemberus-gaap:NoncontrollingInterestMember2019-01-012019-12-310001273813ago:SegmentReconcilingItemsRealizedInvestmentGainsLossesMemberago:NetIncomeLossAttributableToParentMember2019-01-012019-12-310001273813ago:SegmentReconcilingItemsUnrealizedGainLossOnDerivativesAndCommodityContractsMemberago:RevenueMember2019-01-012019-12-310001273813ago:BenefitsLossesAndExpensesMemberago:SegmentReconcilingItemsUnrealizedGainLossOnDerivativesAndCommodityContractsMember2019-01-012019-12-310001273813us-gaap:EquityMethodInvestmentsMemberago:SegmentReconcilingItemsUnrealizedGainLossOnDerivativesAndCommodityContractsMember2019-01-012019-12-310001273813ago:SegmentReconcilingItemsUnrealizedGainLossOnDerivativesAndCommodityContractsMemberago:IncomeTaxExpenseBenefitMember2019-01-012019-12-310001273813ago:SegmentReconcilingItemsUnrealizedGainLossOnDerivativesAndCommodityContractsMemberus-gaap:NoncontrollingInterestMember2019-01-012019-12-310001273813ago:NetIncomeLossAttributableToParentMemberago:SegmentReconcilingItemsUnrealizedGainLossOnDerivativesAndCommodityContractsMember2019-01-012019-12-310001273813ago:SegmentReconcilingItemsFairValueGainLossOnCommittedCapitalSecuritiesMemberago:RevenueMember2019-01-012019-12-310001273813ago:SegmentReconcilingItemsFairValueGainLossOnCommittedCapitalSecuritiesMemberago:BenefitsLossesAndExpensesMember2019-01-012019-12-310001273813ago:SegmentReconcilingItemsFairValueGainLossOnCommittedCapitalSecuritiesMemberus-gaap:EquityMethodInvestmentsMember2019-01-012019-12-310001273813ago:SegmentReconcilingItemsFairValueGainLossOnCommittedCapitalSecuritiesMemberago:IncomeTaxExpenseBenefitMember2019-01-012019-12-310001273813ago:SegmentReconcilingItemsFairValueGainLossOnCommittedCapitalSecuritiesMemberus-gaap:NoncontrollingInterestMember2019-01-012019-12-310001273813ago:SegmentReconcilingItemsFairValueGainLossOnCommittedCapitalSecuritiesMemberago:NetIncomeLossAttributableToParentMember2019-01-012019-12-310001273813ago:SegmentReconcilingItemsFinancialGuaranteeInsuranceContractsPremiumReceivableAdjustmentForeignExchangeTranslationMemberago:RevenueMember2019-01-012019-12-310001273813ago:BenefitsLossesAndExpensesMemberago:SegmentReconcilingItemsFinancialGuaranteeInsuranceContractsPremiumReceivableAdjustmentForeignExchangeTranslationMember2019-01-012019-12-310001273813us-gaap:EquityMethodInvestmentsMemberago:SegmentReconcilingItemsFinancialGuaranteeInsuranceContractsPremiumReceivableAdjustmentForeignExchangeTranslationMember2019-01-012019-12-310001273813ago:SegmentReconcilingItemsFinancialGuaranteeInsuranceContractsPremiumReceivableAdjustmentForeignExchangeTranslationMemberago:IncomeTaxExpenseBenefitMember2019-01-012019-12-310001273813ago:SegmentReconcilingItemsFinancialGuaranteeInsuranceContractsPremiumReceivableAdjustmentForeignExchangeTranslationMemberus-gaap:NoncontrollingInterestMember2019-01-012019-12-310001273813ago:NetIncomeLossAttributableToParentMemberago:SegmentReconcilingItemsFinancialGuaranteeInsuranceContractsPremiumReceivableAdjustmentForeignExchangeTranslationMember2019-01-012019-12-310001273813ago:SegmentReconcilingItemsAdjustmentsToOperatingIncomeTaxMemberago:RevenueMember2019-01-012019-12-310001273813ago:SegmentReconcilingItemsAdjustmentsToOperatingIncomeTaxMemberago:BenefitsLossesAndExpensesMember2019-01-012019-12-310001273813ago:SegmentReconcilingItemsAdjustmentsToOperatingIncomeTaxMemberus-gaap:EquityMethodInvestmentsMember2019-01-012019-12-310001273813ago:SegmentReconcilingItemsAdjustmentsToOperatingIncomeTaxMemberago:IncomeTaxExpenseBenefitMember2019-01-012019-12-310001273813ago:SegmentReconcilingItemsAdjustmentsToOperatingIncomeTaxMemberus-gaap:NoncontrollingInterestMember2019-01-012019-12-310001273813ago:NetIncomeLossAttributableToParentMemberago:SegmentReconcilingItemsAdjustmentsToOperatingIncomeTaxMember2019-01-012019-12-310001273813ago:RevenueMember2019-01-012019-12-310001273813ago:BenefitsLossesAndExpensesMember2019-01-012019-12-310001273813us-gaap:EquityMethodInvestmentsMember2019-01-012019-12-310001273813ago:IncomeTaxExpenseBenefitMember2019-01-012019-12-310001273813us-gaap:NoncontrollingInterestMember2019-01-012019-12-310001273813ago:NetIncomeLossAttributableToParentMember2019-01-012019-12-310001273813ago:SegmentReconcilingItemsCreditDerivativeImpairmentRecoveriesMember2021-01-012021-12-310001273813ago:SegmentReconcilingItemsCreditDerivativeImpairmentRecoveriesMember2020-01-012020-12-310001273813ago:SegmentReconcilingItemsCreditDerivativeImpairmentRecoveriesMember2019-01-012019-12-310001273813country:US2021-01-012021-12-310001273813country:US2020-01-012020-12-310001273813country:US2019-01-012019-12-310001273813country:BM2021-01-012021-12-310001273813country:BM2020-01-012020-12-310001273813country:BM2019-01-012019-12-310001273813country:GB2021-01-012021-12-310001273813country:GB2020-01-012020-12-310001273813country:GB2019-01-012019-12-310001273813ago:OtherCountriesMember2021-01-012021-12-310001273813ago:OtherCountriesMember2020-01-012020-12-310001273813ago:OtherCountriesMember2019-01-012019-12-310001273813srt:MinimumMember2021-12-310001273813us-gaap:InternalNoninvestmentGradeMember2021-01-012021-12-310001273813us-gaap:SubsequentEventMember2022-02-240001273813ago:PublicFinanceMember2021-12-310001273813ago:PublicFinanceMember2020-12-310001273813us-gaap:StructuredFinanceMember2021-12-310001273813us-gaap:StructuredFinanceMember2020-12-310001273813ago:CommitmenttoProvideGuaranteesMemberago:PublicFinanceMember2021-12-310001273813us-gaap:StructuredFinanceMemberago:CommitmenttoProvideGuaranteesMember2021-12-310001273813country:USago:InternalInvestmentGradeAAAMemberago:PublicFinanceMember2021-12-310001273813ago:NonUnitedStatesMemberago:InternalInvestmentGradeAAAMemberago:PublicFinanceMember2021-12-310001273813us-gaap:StructuredFinanceMembercountry:USago:InternalInvestmentGradeAAAMember2021-12-310001273813ago:NonUnitedStatesMemberus-gaap:StructuredFinanceMemberago:InternalInvestmentGradeAAAMember2021-12-310001273813ago:InternalInvestmentGradeAAAMember2021-12-310001273813country:USago:InternalInvestmentGradeAAMemberago:PublicFinanceMember2021-12-310001273813ago:NonUnitedStatesMemberago:InternalInvestmentGradeAAMemberago:PublicFinanceMember2021-12-310001273813us-gaap:StructuredFinanceMembercountry:USago:InternalInvestmentGradeAAMember2021-12-310001273813ago:NonUnitedStatesMemberus-gaap:StructuredFinanceMemberago:InternalInvestmentGradeAAMember2021-12-310001273813ago:InternalInvestmentGradeAAMember2021-12-310001273813country:USago:InternalInvestmentGradeAMemberago:PublicFinanceMember2021-12-310001273813ago:NonUnitedStatesMemberago:InternalInvestmentGradeAMemberago:PublicFinanceMember2021-12-310001273813us-gaap:StructuredFinanceMembercountry:USago:InternalInvestmentGradeAMember2021-12-310001273813ago:NonUnitedStatesMemberus-gaap:StructuredFinanceMemberago:InternalInvestmentGradeAMember2021-12-310001273813ago:InternalInvestmentGradeAMember2021-12-310001273813ago:InternalInvestmentGradeBBBMembercountry:USago:PublicFinanceMember2021-12-310001273813ago:InternalInvestmentGradeBBBMemberago:NonUnitedStatesMemberago:PublicFinanceMember2021-12-310001273813ago:InternalInvestmentGradeBBBMemberus-gaap:StructuredFinanceMembercountry:US2021-12-310001273813ago:InternalInvestmentGradeBBBMemberago:NonUnitedStatesMemberus-gaap:StructuredFinanceMember2021-12-310001273813ago:InternalInvestmentGradeBBBMember2021-12-310001273813country:USus-gaap:InternalNoninvestmentGradeMemberago:PublicFinanceMember2021-12-310001273813ago:NonUnitedStatesMemberus-gaap:InternalNoninvestmentGradeMemberago:PublicFinanceMember2021-12-310001273813us-gaap:StructuredFinanceMembercountry:USus-gaap:InternalNoninvestmentGradeMember2021-12-310001273813ago:NonUnitedStatesMemberus-gaap:StructuredFinanceMemberus-gaap:InternalNoninvestmentGradeMember2021-12-310001273813us-gaap:InternalNoninvestmentGradeMember2021-12-310001273813country:USago:PublicFinanceMember2021-12-310001273813ago:NonUnitedStatesMemberago:PublicFinanceMember2021-12-310001273813us-gaap:StructuredFinanceMembercountry:US2021-12-310001273813ago:NonUnitedStatesMemberus-gaap:StructuredFinanceMember2021-12-310001273813country:USago:InternalInvestmentGradeAAAMemberago:PublicFinanceMember2020-12-310001273813ago:NonUnitedStatesMemberago:InternalInvestmentGradeAAAMemberago:PublicFinanceMember2020-12-310001273813us-gaap:StructuredFinanceMembercountry:USago:InternalInvestmentGradeAAAMember2020-12-310001273813ago:NonUnitedStatesMemberus-gaap:StructuredFinanceMemberago:InternalInvestmentGradeAAAMember2020-12-310001273813ago:InternalInvestmentGradeAAAMember2020-12-310001273813country:USago:InternalInvestmentGradeAAMemberago:PublicFinanceMember2020-12-310001273813ago:NonUnitedStatesMemberago:InternalInvestmentGradeAAMemberago:PublicFinanceMember2020-12-310001273813us-gaap:StructuredFinanceMembercountry:USago:InternalInvestmentGradeAAMember2020-12-310001273813ago:NonUnitedStatesMemberus-gaap:StructuredFinanceMemberago:InternalInvestmentGradeAAMember2020-12-310001273813ago:InternalInvestmentGradeAAMember2020-12-310001273813country:USago:InternalInvestmentGradeAMemberago:PublicFinanceMember2020-12-310001273813ago:NonUnitedStatesMemberago:InternalInvestmentGradeAMemberago:PublicFinanceMember2020-12-310001273813us-gaap:StructuredFinanceMembercountry:USago:InternalInvestmentGradeAMember2020-12-310001273813ago:NonUnitedStatesMemberus-gaap:StructuredFinanceMemberago:InternalInvestmentGradeAMember2020-12-310001273813ago:InternalInvestmentGradeAMember2020-12-310001273813ago:InternalInvestmentGradeBBBMembercountry:USago:PublicFinanceMember2020-12-310001273813ago:InternalInvestmentGradeBBBMemberago:NonUnitedStatesMemberago:PublicFinanceMember2020-12-310001273813ago:InternalInvestmentGradeBBBMemberus-gaap:StructuredFinanceMembercountry:US2020-12-310001273813ago:InternalInvestmentGradeBBBMemberago:NonUnitedStatesMemberus-gaap:StructuredFinanceMember2020-12-310001273813ago:InternalInvestmentGradeBBBMember2020-12-310001273813country:USus-gaap:InternalNoninvestmentGradeMemberago:PublicFinanceMember2020-12-310001273813ago:NonUnitedStatesMemberus-gaap:InternalNoninvestmentGradeMemberago:PublicFinanceMember2020-12-310001273813us-gaap:StructuredFinanceMembercountry:USus-gaap:InternalNoninvestmentGradeMember2020-12-310001273813ago:NonUnitedStatesMemberus-gaap:StructuredFinanceMemberus-gaap:InternalNoninvestmentGradeMember2020-12-310001273813us-gaap:InternalNoninvestmentGradeMember2020-12-310001273813country:USago:PublicFinanceMember2020-12-310001273813ago:NonUnitedStatesMemberago:PublicFinanceMember2020-12-310001273813us-gaap:StructuredFinanceMembercountry:US2020-12-310001273813ago:NonUnitedStatesMemberus-gaap:StructuredFinanceMember2020-12-310001273813ago:GeneralObligationMembercountry:USago:PublicFinanceMember2021-12-310001273813ago:GeneralObligationMembercountry:USago:PublicFinanceMember2020-12-310001273813country:USago:TaxBackedMemberago:PublicFinanceMember2021-12-310001273813country:USago:TaxBackedMemberago:PublicFinanceMember2020-12-310001273813country:USago:MunicipalUtilitiesMemberago:PublicFinanceMember2021-12-310001273813country:USago:MunicipalUtilitiesMemberago:PublicFinanceMember2020-12-310001273813country:USago:TransportationMemberago:PublicFinanceMember2021-12-310001273813country:USago:TransportationMemberago:PublicFinanceMember2020-12-310001273813country:USus-gaap:HealthCareMemberago:PublicFinanceMember2021-12-310001273813country:USus-gaap:HealthCareMemberago:PublicFinanceMember2020-12-310001273813ago:HigherEducationMembercountry:USago:PublicFinanceMember2021-12-310001273813ago:HigherEducationMembercountry:USago:PublicFinanceMember2020-12-310001273813country:USago:InfrastructureFinanceMemberago:PublicFinanceMember2021-12-310001273813country:USago:InfrastructureFinanceMemberago:PublicFinanceMember2020-12-310001273813country:USago:HousingMemberago:PublicFinanceMember2021-12-310001273813country:USago:HousingMemberago:PublicFinanceMember2020-12-310001273813ago:InvestorOwnedUtilitiesMembercountry:USago:PublicFinanceMember2021-12-310001273813ago:InvestorOwnedUtilitiesMembercountry:USago:PublicFinanceMember2020-12-310001273813country:USus-gaap:RenewableEnergyProgramMemberago:PublicFinanceMember2021-12-310001273813country:USus-gaap:RenewableEnergyProgramMemberago:PublicFinanceMember2020-12-310001273813ago:OtherUnderlyingAssetsMembercountry:USago:PublicFinanceMember2021-12-310001273813ago:OtherUnderlyingAssetsMembercountry:USago:PublicFinanceMember2020-12-310001273813ago:NonUnitedStatesMemberago:RegulatedUtilitiesMemberago:PublicFinanceMember2021-12-310001273813ago:NonUnitedStatesMemberago:RegulatedUtilitiesMemberago:PublicFinanceMember2020-12-310001273813ago:NonUnitedStatesMemberago:InfrastructureFinanceMemberago:PublicFinanceMember2021-12-310001273813ago:NonUnitedStatesMemberago:InfrastructureFinanceMemberago:PublicFinanceMember2020-12-310001273813ago:NonUnitedStatesMemberago:SovereignAndSubSovereignMemberago:PublicFinanceMember2021-12-310001273813ago:NonUnitedStatesMemberago:SovereignAndSubSovereignMemberago:PublicFinanceMember2020-12-310001273813ago:NonUnitedStatesMemberus-gaap:RenewableEnergyProgramMemberago:PublicFinanceMember2021-12-310001273813ago:NonUnitedStatesMemberus-gaap:RenewableEnergyProgramMemberago:PublicFinanceMember2020-12-310001273813ago:NonUnitedStatesMemberago:PooledInfrastructureTransactionsMemberago:PublicFinanceMember2021-12-310001273813ago:NonUnitedStatesMemberago:PooledInfrastructureTransactionsMemberago:PublicFinanceMember2020-12-310001273813us-gaap:StructuredFinanceMembercountry:USago:LifeInsuranceTransactionsMember2021-12-310001273813us-gaap:StructuredFinanceMembercountry:USago:LifeInsuranceTransactionsMember2020-12-310001273813us-gaap:StructuredFinanceMembercountry:USus-gaap:ResidentialMortgageBackedSecuritiesMember2021-12-310001273813us-gaap:StructuredFinanceMembercountry:USus-gaap:ResidentialMortgageBackedSecuritiesMember2020-12-310001273813us-gaap:StructuredFinanceMemberago:FinancialProductMembercountry:US2021-12-310001273813us-gaap:StructuredFinanceMemberago:FinancialProductMembercountry:US2020-12-310001273813us-gaap:StructuredFinanceMemberago:ConsumerReceivableMembercountry:US2021-12-310001273813us-gaap:StructuredFinanceMemberago:ConsumerReceivableMembercountry:US2020-12-310001273813us-gaap:StructuredFinanceMembercountry:USago:PooledCorporateObligationsMember2021-12-310001273813us-gaap:StructuredFinanceMembercountry:USago:PooledCorporateObligationsMember2020-12-310001273813us-gaap:StructuredFinanceMemberago:OtherUnderlyingAssetsMembercountry:US2021-12-310001273813us-gaap:StructuredFinanceMemberago:OtherUnderlyingAssetsMembercountry:US2020-12-310001273813ago:NonUnitedStatesMemberus-gaap:StructuredFinanceMemberago:PooledCorporateObligationsMember2021-12-310001273813ago:NonUnitedStatesMemberus-gaap:StructuredFinanceMemberago:PooledCorporateObligationsMember2020-12-310001273813ago:NonUnitedStatesMemberus-gaap:StructuredFinanceMemberus-gaap:ResidentialMortgageBackedSecuritiesMember2021-12-310001273813ago:NonUnitedStatesMemberus-gaap:StructuredFinanceMemberus-gaap:ResidentialMortgageBackedSecuritiesMember2020-12-310001273813ago:NonUnitedStatesMemberus-gaap:StructuredFinanceMemberago:OtherUnderlyingAssetsMember2021-12-310001273813ago:NonUnitedStatesMemberus-gaap:StructuredFinanceMemberago:OtherUnderlyingAssetsMember2020-12-310001273813country:USus-gaap:InternalNoninvestmentGradeMemberago:InternalNoninvestmentGradeLevel1Memberago:PublicFinanceMember2021-12-310001273813ago:InternalNoninvestmentGradeLevel2Membercountry:USus-gaap:InternalNoninvestmentGradeMemberago:PublicFinanceMember2021-12-310001273813ago:InternalNoninvestmentGradeLevel3Membercountry:USus-gaap:InternalNoninvestmentGradeMemberago:PublicFinanceMember2021-12-310001273813ago:NonUnitedStatesMemberus-gaap:InternalNoninvestmentGradeMemberago:InternalNoninvestmentGradeLevel1Memberago:PublicFinanceMember2021-12-310001273813ago:NonUnitedStatesMemberago:InternalNoninvestmentGradeLevel2Memberus-gaap:InternalNoninvestmentGradeMemberago:PublicFinanceMember2021-12-310001273813ago:InternalNoninvestmentGradeLevel3Memberago:NonUnitedStatesMemberus-gaap:InternalNoninvestmentGradeMemberago:PublicFinanceMember2021-12-310001273813us-gaap:InternalNoninvestmentGradeMemberago:InternalNoninvestmentGradeLevel1Memberago:PublicFinanceMember2021-12-310001273813ago:InternalNoninvestmentGradeLevel2Memberus-gaap:InternalNoninvestmentGradeMemberago:PublicFinanceMember2021-12-310001273813ago:InternalNoninvestmentGradeLevel3Memberus-gaap:InternalNoninvestmentGradeMemberago:PublicFinanceMember2021-12-310001273813us-gaap:InternalNoninvestmentGradeMemberago:PublicFinanceMember2021-12-310001273813us-gaap:ResidentialMortgageBackedSecuritiesMembercountry:USus-gaap:InternalNoninvestmentGradeMemberago:InternalNoninvestmentGradeLevel1Member2021-12-310001273813ago:InternalNoninvestmentGradeLevel2Memberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:USus-gaap:InternalNoninvestmentGradeMember2021-12-310001273813ago:InternalNoninvestmentGradeLevel3Memberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:USus-gaap:InternalNoninvestmentGradeMember2021-12-310001273813us-gaap:ResidentialMortgageBackedSecuritiesMembercountry:USus-gaap:InternalNoninvestmentGradeMember2021-12-310001273813us-gaap:ResidentialMortgageBackedSecuritiesMembercountry:US2021-12-310001273813ago:OtherStructuredFinanceMemberus-gaap:InternalNoninvestmentGradeMemberago:InternalNoninvestmentGradeLevel1Member2021-12-310001273813ago:OtherStructuredFinanceMemberago:InternalNoninvestmentGradeLevel2Memberus-gaap:InternalNoninvestmentGradeMember2021-12-310001273813ago:InternalNoninvestmentGradeLevel3Memberago:OtherStructuredFinanceMemberus-gaap:InternalNoninvestmentGradeMember2021-12-310001273813ago:OtherStructuredFinanceMemberus-gaap:InternalNoninvestmentGradeMember2021-12-310001273813ago:OtherStructuredFinanceMember2021-12-310001273813us-gaap:StructuredFinanceMemberus-gaap:InternalNoninvestmentGradeMemberago:InternalNoninvestmentGradeLevel1Member2021-12-310001273813us-gaap:StructuredFinanceMemberago:InternalNoninvestmentGradeLevel2Memberus-gaap:InternalNoninvestmentGradeMember2021-12-310001273813ago:InternalNoninvestmentGradeLevel3Memberus-gaap:StructuredFinanceMemberus-gaap:InternalNoninvestmentGradeMember2021-12-310001273813us-gaap:StructuredFinanceMemberus-gaap:InternalNoninvestmentGradeMember2021-12-310001273813us-gaap:InternalNoninvestmentGradeMemberago:InternalNoninvestmentGradeLevel1Member2021-12-310001273813ago:InternalNoninvestmentGradeLevel2Memberus-gaap:InternalNoninvestmentGradeMember2021-12-310001273813ago:InternalNoninvestmentGradeLevel3Memberus-gaap:InternalNoninvestmentGradeMember2021-12-310001273813country:USus-gaap:InternalNoninvestmentGradeMemberago:InternalNoninvestmentGradeLevel1Memberago:PublicFinanceMember2020-12-310001273813ago:InternalNoninvestmentGradeLevel2Membercountry:USus-gaap:InternalNoninvestmentGradeMemberago:PublicFinanceMember2020-12-310001273813ago:InternalNoninvestmentGradeLevel3Membercountry:USus-gaap:InternalNoninvestmentGradeMemberago:PublicFinanceMember2020-12-310001273813ago:NonUnitedStatesMemberus-gaap:InternalNoninvestmentGradeMemberago:InternalNoninvestmentGradeLevel1Memberago:PublicFinanceMember2020-12-310001273813ago:NonUnitedStatesMemberago:InternalNoninvestmentGradeLevel2Memberus-gaap:InternalNoninvestmentGradeMemberago:PublicFinanceMember2020-12-310001273813ago:InternalNoninvestmentGradeLevel3Memberago:NonUnitedStatesMemberus-gaap:InternalNoninvestmentGradeMemberago:PublicFinanceMember2020-12-310001273813us-gaap:InternalNoninvestmentGradeMemberago:InternalNoninvestmentGradeLevel1Memberago:PublicFinanceMember2020-12-310001273813ago:InternalNoninvestmentGradeLevel2Memberus-gaap:InternalNoninvestmentGradeMemberago:PublicFinanceMember2020-12-310001273813ago:InternalNoninvestmentGradeLevel3Memberus-gaap:InternalNoninvestmentGradeMemberago:PublicFinanceMember2020-12-310001273813us-gaap:InternalNoninvestmentGradeMemberago:PublicFinanceMember2020-12-310001273813us-gaap:ResidentialMortgageBackedSecuritiesMembercountry:USus-gaap:InternalNoninvestmentGradeMemberago:InternalNoninvestmentGradeLevel1Member2020-12-310001273813ago:InternalNoninvestmentGradeLevel2Memberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:USus-gaap:InternalNoninvestmentGradeMember2020-12-310001273813ago:InternalNoninvestmentGradeLevel3Memberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:USus-gaap:InternalNoninvestmentGradeMember2020-12-310001273813us-gaap:ResidentialMortgageBackedSecuritiesMembercountry:USus-gaap:InternalNoninvestmentGradeMember2020-12-310001273813us-gaap:ResidentialMortgageBackedSecuritiesMembercountry:US2020-12-310001273813ago:OtherStructuredFinanceMemberus-gaap:InternalNoninvestmentGradeMemberago:InternalNoninvestmentGradeLevel1Member2020-12-310001273813ago:OtherStructuredFinanceMemberago:InternalNoninvestmentGradeLevel2Memberus-gaap:InternalNoninvestmentGradeMember2020-12-310001273813ago:InternalNoninvestmentGradeLevel3Memberago:OtherStructuredFinanceMemberus-gaap:InternalNoninvestmentGradeMember2020-12-310001273813ago:OtherStructuredFinanceMemberus-gaap:InternalNoninvestmentGradeMember2020-12-310001273813ago:OtherStructuredFinanceMember2020-12-310001273813us-gaap:StructuredFinanceMemberus-gaap:InternalNoninvestmentGradeMemberago:InternalNoninvestmentGradeLevel1Member2020-12-310001273813us-gaap:StructuredFinanceMemberago:InternalNoninvestmentGradeLevel2Memberus-gaap:InternalNoninvestmentGradeMember2020-12-310001273813ago:InternalNoninvestmentGradeLevel3Memberus-gaap:StructuredFinanceMemberus-gaap:InternalNoninvestmentGradeMember2020-12-310001273813us-gaap:StructuredFinanceMemberus-gaap:InternalNoninvestmentGradeMember2020-12-310001273813us-gaap:InternalNoninvestmentGradeMemberago:InternalNoninvestmentGradeLevel1Member2020-12-310001273813ago:InternalNoninvestmentGradeLevel2Memberus-gaap:InternalNoninvestmentGradeMember2020-12-310001273813ago:InternalNoninvestmentGradeLevel3Memberus-gaap:InternalNoninvestmentGradeMember2020-12-31ago:risk0001273813stpr:CAago:PublicFinanceMember2021-12-310001273813stpr:TXago:PublicFinanceMember2021-12-310001273813stpr:PAago:PublicFinanceMember2021-12-310001273813stpr:NYago:PublicFinanceMember2021-12-310001273813stpr:ILago:PublicFinanceMember2021-12-310001273813stpr:NJago:PublicFinanceMember2021-12-310001273813stpr:FLago:PublicFinanceMember2021-12-310001273813stpr:MIago:PublicFinanceMember2021-12-310001273813stpr:LAago:PublicFinanceMember2021-12-310001273813stpr:ALago:PublicFinanceMember2021-12-310001273813ago:OtherStatesMemberago:PublicFinanceMember2021-12-310001273813country:US2021-12-310001273813country:GB2021-12-310001273813country:FR2021-12-310001273813country:CA2021-12-310001273813country:ES2021-12-310001273813country:AU2021-12-310001273813ago:OtherCountriesMember2021-12-310001273813ago:NonUnitedStatesMember2021-12-310001273813country:PRus-gaap:InternalNoninvestmentGradeMember2021-12-310001273813country:PRago:ConstitutionallyGuaranteedMemberago:PuertoRicoElectricPowerAuthorityMember2021-12-310001273813country:PRago:ConstitutionallyGuaranteedMemberago:PuertoRicoElectricPowerAuthorityMember2021-01-012021-12-310001273813country:PRago:AdjustmentsToConstitutionallyGuaranteedLoansMemberago:PuertoRicoElectricPowerAuthorityMember2021-12-310001273813country:PRago:AdjustmentsToConstitutionallyGuaranteedLoansMemberago:PuertoRicoElectricPowerAuthorityMember2021-01-012021-12-310001273813country:PRago:BenefitsFromCourtOrdersForResolutionMemberago:PuertoRicoElectricPowerAuthorityMember2021-12-310001273813country:PRago:BenefitsFromCourtOrdersForResolutionMemberago:PuertoRicoElectricPowerAuthorityMember2021-01-012021-12-310001273813ago:CommonwealthofPuertoRicoGeneralObligationBondsMembercountry:PRus-gaap:SubsequentEventMemberago:ConstitutionallyGuaranteedMember2022-01-180001273813ago:CommonwealthofPuertoRicoGeneralObligationBondsMembercountry:PRus-gaap:SubsequentEventMemberago:PensionObligationsMember2022-01-180001273813country:PRago:GOPBAPSAMemberago:ConstitutionallyGuaranteedMember2021-12-310001273813ago:CommonwealthofPuertoRicoGeneralObligationBondsMembercountry:PRago:PuertoRicoExposuresSubjectToAPlanSupportAgreementMember2021-12-310001273813ago:PuertoRicoPublicBuildingsAuthorityMembercountry:PRago:PuertoRicoExposuresSubjectToAPlanSupportAgreementMember2021-12-310001273813country:PRago:GOAndPBAPOAMemberago:ConstitutionallyGuaranteedMember2021-08-012021-08-310001273813country:PRago:GOAndPBAPOAMemberago:ConstitutionallyGuaranteedMember2021-12-310001273813country:PRago:HTACCDAPSAMember2021-12-310001273813country:PRago:PuertoRicoTransportationAuthorityMemberago:PuertoRicoExposuresSubjectToAPlanSupportAgreementMember2021-12-310001273813ago:PuertoRicoHighwaysAuthorityMembercountry:PRago:PuertoRicoExposuresSubjectToAPlanSupportAgreementMember2021-12-310001273813country:PRago:PuertoRicoExposuresSubjectToAPlanSupportAgreementMemberago:PuertoRicoConventionCenterDistrictAuthorityMember2021-12-310001273813ago:PuertoRicoTransportationAuthorityMemberago:HTACCDAPSAMember2021-12-310001273813ago:HTACCDAPSAMemberago:PuertoRicoConventionCenterDistrictAuthorityMember2021-12-310001273813country:PRago:PuertoRicoExposuresSubjectToAPlanSupportAgreementMemberago:PuertoRicoElectricPowerAuthorityMember2021-12-310001273813country:PRago:PuertoRicoExposuresSubjectToAPlanSupportAgreementMemberago:PuertoRicoInfrastructureFinancingAuthorityMember2021-12-310001273813ago:OtherPuertoRicoExposuresMembercountry:PRago:PuertoRicoMunicipalFinanceAuthorityMember2021-12-310001273813ago:PublicCorporationsMembercountry:PRago:UniversityofPuertoRicoMember2021-12-310001273813ago:PublicCorporationsMembercountry:PRago:PuertoRicoAqueductandSewerAuthorityMember2021-12-310001273813country:PR2021-01-012021-12-310001273813country:PR2021-12-310001273813country:PR2020-12-310001273813ago:CommonwealthofPuertoRicoGeneralObligationBondsMembercountry:PRago:PuertoRicoExposuresSubjectToAPlanSupportAgreementMember2020-12-310001273813ago:PuertoRicoPublicBuildingsAuthorityMembercountry:PRago:PuertoRicoExposuresSubjectToAPlanSupportAgreementMember2020-12-310001273813country:PRago:PuertoRicoExposuresSubjectToAPlanSupportAgreementMemberago:GOPBAPSAMember2021-12-310001273813country:PRago:PuertoRicoExposuresSubjectToAPlanSupportAgreementMemberago:GOPBAPSAMember2020-12-310001273813country:PRago:PuertoRicoTransportationAuthorityMemberago:PuertoRicoExposuresSubjectToAPlanSupportAgreementMember2020-12-310001273813ago:PuertoRicoHighwaysAuthorityMembercountry:PRago:PuertoRicoExposuresSubjectToAPlanSupportAgreementMember2020-12-310001273813country:PRago:PuertoRicoExposuresSubjectToAPlanSupportAgreementMemberago:PuertoRicoConventionCenterDistrictAuthorityMember2020-12-310001273813country:PRago:HTACCDAPSAMemberago:PuertoRicoExposuresSubjectToAPlanSupportAgreementMember2021-12-310001273813country:PRago:HTACCDAPSAMemberago:PuertoRicoExposuresSubjectToAPlanSupportAgreementMember2020-12-310001273813country:PRago:PuertoRicoExposuresSubjectToAPlanSupportAgreementMemberago:PuertoRicoElectricPowerAuthorityMember2020-12-310001273813country:PRago:PuertoRicoExposuresSubjectToAPlanSupportAgreementMemberago:PuertoRicoInfrastructureFinancingAuthorityMember2020-12-310001273813country:PRago:PuertoRicoExposuresSubjectToAPlanSupportAgreementMember2021-12-310001273813country:PRago:PuertoRicoExposuresSubjectToAPlanSupportAgreementMember2020-12-310001273813ago:OtherPuertoRicoExposuresMembercountry:PRago:PuertoRicoMunicipalFinanceAuthorityMember2020-12-310001273813ago:OtherPuertoRicoExposuresMembercountry:PRago:PuertoRicoAqueductAndSewerAuthorityAndUniversityOfPuertoRicoMember2021-12-310001273813ago:OtherPuertoRicoExposuresMembercountry:PRago:PuertoRicoAqueductAndSewerAuthorityAndUniversityOfPuertoRicoMember2020-12-310001273813ago:OtherPuertoRicoExposuresMembercountry:PR2021-12-310001273813ago:OtherPuertoRicoExposuresMembercountry:PR2020-12-310001273813country:VI2021-12-310001273813country:VIus-gaap:InternalNoninvestmentGradeMember2021-12-310001273813country:VIus-gaap:InternalNoninvestmentGradeMember2020-12-310001273813ago:LifeInsuranceTransactionsMember2021-12-310001273813ago:LifeInsuranceTransactionsMember2020-12-310001273813sic:Z37212021-12-310001273813sic:Z37212020-12-310001273813srt:MaximumMemberago:LifeInsuranceTransactionsMember2021-12-310001273813ago:InsuranceContractsMember2021-12-310001273813ago:InsuranceContractsMember2020-12-310001273813ago:InsuranceContractsMember2021-01-012021-12-310001273813ago:InsuranceContractsMember2020-01-012020-12-310001273813ago:InsuranceContractsMember2019-01-012019-12-310001273813ago:FinancialGuaranteeVariableInterestEntitiesMember2021-12-310001273813ago:FinancialGuaranteeVariableInterestEntitiesMember2020-12-310001273813ago:FinancialGuaranteeVariableInterestEntitiesMember2021-01-012021-12-310001273813ago:FinancialGuaranteeVariableInterestEntitiesMember2020-01-012020-12-310001273813ago:FinancialGuaranteeVariableInterestEntitiesMember2019-01-012019-12-310001273813ago:FinancialGuaranteeAccountedforasCreditDerivativesMember2021-12-310001273813ago:FinancialGuaranteeAccountedforasCreditDerivativesMember2020-12-310001273813ago:FinancialGuaranteeAccountedforasCreditDerivativesMember2021-01-012021-12-310001273813ago:FinancialGuaranteeAccountedforasCreditDerivativesMember2020-01-012020-12-310001273813ago:FinancialGuaranteeAccountedforasCreditDerivativesMember2019-01-012019-12-310001273813srt:MinimumMember2021-01-012021-12-310001273813srt:MaximumMember2021-01-012021-12-310001273813srt:MinimumMember2020-01-012020-12-310001273813srt:MaximumMember2020-01-012020-12-310001273813country:USago:PublicFinanceMember2021-01-012021-12-310001273813ago:NonUnitedStatesMemberago:PublicFinanceMember2021-01-012021-12-310001273813ago:PublicFinanceMember2021-01-012021-12-310001273813us-gaap:ResidentialMortgageBackedSecuritiesMembercountry:US2021-01-012021-12-310001273813ago:OtherStructuredFinanceMember2021-01-012021-12-310001273813us-gaap:StructuredFinanceMember2021-01-012021-12-310001273813country:USago:PublicFinanceMember2019-12-310001273813country:USago:PublicFinanceMember2020-01-012020-12-310001273813ago:NonUnitedStatesMemberago:PublicFinanceMember2019-12-310001273813ago:NonUnitedStatesMemberago:PublicFinanceMember2020-01-012020-12-310001273813ago:PublicFinanceMember2019-12-310001273813ago:PublicFinanceMember2020-01-012020-12-310001273813us-gaap:ResidentialMortgageBackedSecuritiesMembercountry:US2019-12-310001273813us-gaap:ResidentialMortgageBackedSecuritiesMembercountry:US2020-01-012020-12-310001273813ago:OtherStructuredFinanceMember2019-12-310001273813ago:OtherStructuredFinanceMember2020-01-012020-12-310001273813us-gaap:StructuredFinanceMember2019-12-310001273813us-gaap:StructuredFinanceMember2020-01-012020-12-310001273813country:USago:PublicFinanceMember2018-12-310001273813country:USago:PublicFinanceMember2019-01-012019-12-310001273813ago:NonUnitedStatesMemberago:PublicFinanceMember2018-12-310001273813ago:NonUnitedStatesMemberago:PublicFinanceMember2019-01-012019-12-310001273813ago:PublicFinanceMember2018-12-310001273813ago:PublicFinanceMember2019-01-012019-12-310001273813us-gaap:ResidentialMortgageBackedSecuritiesMembercountry:US2018-12-310001273813us-gaap:ResidentialMortgageBackedSecuritiesMembercountry:US2019-01-012019-12-310001273813ago:OtherStructuredFinanceMember2018-12-310001273813ago:OtherStructuredFinanceMember2019-01-012019-12-310001273813us-gaap:StructuredFinanceMember2018-12-310001273813us-gaap:StructuredFinanceMember2019-01-012019-12-310001273813ago:PuertoRicoGOAndPuertoRicoElectricPowerAuthorityMemberago:PublicFinanceMember2021-12-310001273813us-gaap:SubsequentEventMemberago:PuertoRicoGOAndPuertoRicoElectricPowerAuthorityMemberago:PublicFinanceMember2022-01-012022-01-310001273813ago:PublicFinanceStocktonPensionObligationBondsMember2021-12-310001273813country:PRago:PublicFinanceMember2021-01-012021-12-31ago:Payment0001273813us-gaap:FirstMortgageMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:US2021-01-012021-12-310001273813us-gaap:FirstMortgageMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:US2020-01-012020-12-310001273813us-gaap:FirstMortgageMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:US2019-01-012019-12-310001273813us-gaap:SecondMortgageMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:US2021-01-012021-12-310001273813us-gaap:SecondMortgageMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:US2020-01-012020-12-310001273813us-gaap:SecondMortgageMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:US2019-01-012019-12-310001273813ago:AltAMortgageandPrimeMemberMemberago:FinancingReceivableDelinquentModifiedinPrevious12MonthsMember2021-12-310001273813ago:AltAMortgageandPrimeMemberMemberago:FinancingReceivableDelinquentModifiedinPrevious12MonthsMember2020-12-310001273813us-gaap:AdjustableRateResidentialMortgageMemberago:FinancingReceivableDelinquentModifiedinPrevious12MonthsMember2021-12-310001273813us-gaap:AdjustableRateResidentialMortgageMemberago:FinancingReceivableDelinquentModifiedinPrevious12MonthsMember2020-12-310001273813ago:FinancingReceivableSubprimeMemberago:FinancingReceivableDelinquentModifiedinPrevious12MonthsMember2021-12-310001273813ago:FinancingReceivableSubprimeMemberago:FinancingReceivableDelinquentModifiedinPrevious12MonthsMember2020-12-310001273813us-gaap:FinancingReceivables30To59DaysPastDueMemberago:AltAMortgageandPrimeMemberMember2021-12-310001273813us-gaap:FinancingReceivables30To59DaysPastDueMemberago:AltAMortgageandPrimeMemberMember2020-12-310001273813us-gaap:FinancingReceivables30To59DaysPastDueMemberus-gaap:AdjustableRateResidentialMortgageMember2021-12-310001273813us-gaap:FinancingReceivables30To59DaysPastDueMemberus-gaap:AdjustableRateResidentialMortgageMember2020-12-310001273813us-gaap:FinancingReceivables30To59DaysPastDueMemberago:FinancingReceivableSubprimeMember2021-12-310001273813us-gaap:FinancingReceivables30To59DaysPastDueMemberago:FinancingReceivableSubprimeMember2020-12-310001273813ago:AltAMortgageandPrimeMemberMemberus-gaap:FinancingReceivables60To89DaysPastDueMember2021-12-310001273813ago:AltAMortgageandPrimeMemberMemberus-gaap:FinancingReceivables60To89DaysPastDueMember2020-12-310001273813us-gaap:AdjustableRateResidentialMortgageMemberus-gaap:FinancingReceivables60To89DaysPastDueMember2021-12-310001273813us-gaap:AdjustableRateResidentialMortgageMemberus-gaap:FinancingReceivables60To89DaysPastDueMember2020-12-310001273813ago:FinancingReceivableSubprimeMemberus-gaap:FinancingReceivables60To89DaysPastDueMember2021-12-310001273813ago:FinancingReceivableSubprimeMemberus-gaap:FinancingReceivables60To89DaysPastDueMember2020-12-310001273813ago:AltAMortgageandPrimeMemberMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2021-12-310001273813ago:AltAMortgageandPrimeMemberMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2020-12-310001273813us-gaap:AdjustableRateResidentialMortgageMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2021-12-310001273813us-gaap:AdjustableRateResidentialMortgageMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2020-12-310001273813ago:FinancingReceivableSubprimeMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2021-12-310001273813ago:FinancingReceivableSubprimeMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2020-12-310001273813ago:AltAMortgageandPrimeMemberMemberago:FinancingReceivablesBankruptcyMember2021-12-310001273813ago:AltAMortgageandPrimeMemberMemberago:FinancingReceivablesBankruptcyMember2020-12-310001273813us-gaap:AdjustableRateResidentialMortgageMemberago:FinancingReceivablesBankruptcyMember2021-12-310001273813us-gaap:AdjustableRateResidentialMortgageMemberago:FinancingReceivablesBankruptcyMember2020-12-310001273813ago:FinancingReceivableSubprimeMemberago:FinancingReceivablesBankruptcyMember2021-12-310001273813ago:FinancingReceivableSubprimeMemberago:FinancingReceivablesBankruptcyMember2020-12-310001273813ago:FinancingReceivableForeclosureMemberago:AltAMortgageandPrimeMemberMember2021-12-310001273813ago:FinancingReceivableForeclosureMemberago:AltAMortgageandPrimeMemberMember2020-12-310001273813ago:FinancingReceivableForeclosureMemberus-gaap:AdjustableRateResidentialMortgageMember2021-12-310001273813ago:FinancingReceivableForeclosureMemberus-gaap:AdjustableRateResidentialMortgageMember2020-12-310001273813ago:FinancingReceivableSubprimeMemberago:FinancingReceivableForeclosureMember2021-12-310001273813ago:FinancingReceivableSubprimeMemberago:FinancingReceivableForeclosureMember2020-12-310001273813ago:FinancingReceivableRealEstateOwnedMember2021-12-310001273813ago:FinancingReceivableRealEstateOwnedMember2020-12-310001273813us-gaap:FirstMortgageMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:US2021-12-310001273813us-gaap:FirstMortgageMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:USago:BaseScenarioMember2021-01-012021-12-310001273813us-gaap:FirstMortgageMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:USago:BaseScenarioMember2021-12-310001273813ago:AlternativeAPaperMortgageMembersrt:MinimumMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:US2021-12-310001273813ago:AlternativeAPaperMortgageMembersrt:MaximumMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:US2021-12-310001273813ago:AlternativeAPaperMortgageMembersrt:WeightedAverageMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:US2021-12-310001273813ago:AlternativeAPaperMortgageMembersrt:MinimumMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:US2020-12-310001273813ago:AlternativeAPaperMortgageMembersrt:MaximumMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:US2020-12-310001273813ago:AlternativeAPaperMortgageMembersrt:WeightedAverageMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:US2020-12-310001273813ago:AlternativeAPaperMortgageMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:USago:LoanOriginationPeriodOneMember2021-12-310001273813ago:AlternativeAPaperMortgageMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:USago:LoanOriginationPeriodOneMember2020-12-310001273813ago:AlternativeAPaperMortgageMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:USago:LoanOriginationPeriodTwoMember2021-12-310001273813ago:AlternativeAPaperMortgageMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:USago:LoanOriginationPeriodTwoMember2020-12-310001273813ago:AlternativeAPaperMortgageMemberago:LoanOriginationPeriodThreeMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:US2021-12-310001273813ago:AlternativeAPaperMortgageMemberago:LoanOriginationPeriodThreeMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:US2020-12-310001273813srt:MinimumMemberus-gaap:AdjustableRateResidentialMortgageMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:US2021-12-310001273813us-gaap:AdjustableRateResidentialMortgageMembersrt:MaximumMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:US2021-12-310001273813srt:WeightedAverageMemberus-gaap:AdjustableRateResidentialMortgageMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:US2021-12-310001273813srt:MinimumMemberus-gaap:AdjustableRateResidentialMortgageMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:US2020-12-310001273813us-gaap:AdjustableRateResidentialMortgageMembersrt:MaximumMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:US2020-12-310001273813srt:WeightedAverageMemberus-gaap:AdjustableRateResidentialMortgageMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:US2020-12-310001273813us-gaap:AdjustableRateResidentialMortgageMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:USago:LoanOriginationPeriodOneMember2021-12-310001273813us-gaap:AdjustableRateResidentialMortgageMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:USago:LoanOriginationPeriodOneMember2020-12-310001273813us-gaap:AdjustableRateResidentialMortgageMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:USago:LoanOriginationPeriodTwoMember2021-12-310001273813us-gaap:AdjustableRateResidentialMortgageMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:USago:LoanOriginationPeriodTwoMember2020-12-310001273813ago:LoanOriginationPeriodThreeMemberus-gaap:AdjustableRateResidentialMortgageMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:US2021-12-310001273813ago:LoanOriginationPeriodThreeMemberus-gaap:AdjustableRateResidentialMortgageMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:US2020-12-310001273813srt:MinimumMemberago:FinancingReceivableSubprimeMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:US2021-12-310001273813ago:FinancingReceivableSubprimeMembersrt:MaximumMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:US2021-12-310001273813ago:FinancingReceivableSubprimeMembersrt:WeightedAverageMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:US2021-12-310001273813srt:MinimumMemberago:FinancingReceivableSubprimeMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:US2020-12-310001273813ago:FinancingReceivableSubprimeMembersrt:MaximumMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:US2020-12-310001273813ago:FinancingReceivableSubprimeMembersrt:WeightedAverageMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:US2020-12-310001273813ago:FinancingReceivableSubprimeMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:USago:LoanOriginationPeriodOneMember2021-12-310001273813ago:FinancingReceivableSubprimeMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:USago:LoanOriginationPeriodOneMember2020-12-310001273813ago:FinancingReceivableSubprimeMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:USago:LoanOriginationPeriodTwoMember2021-12-310001273813ago:FinancingReceivableSubprimeMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:USago:LoanOriginationPeriodTwoMember2020-12-310001273813ago:FinancingReceivableSubprimeMemberago:LoanOriginationPeriodThreeMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:US2021-12-310001273813ago:FinancingReceivableSubprimeMemberago:LoanOriginationPeriodThreeMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:US2020-12-310001273813us-gaap:SecondMortgageMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:USago:BaseScenarioMember2021-12-310001273813us-gaap:FirstMortgageMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:US2021-07-012021-09-30ago:scenario0001273813us-gaap:FirstMortgageMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:US2020-12-310001273813us-gaap:FirstMortgageMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberago:MoreStressfulEnvironmentMembercountry:US2021-01-012021-12-310001273813us-gaap:FirstMortgageMemberago:LeastStressfulEnvironmentMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:US2021-01-012021-12-310001273813us-gaap:SecondMortgageMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:US2021-06-300001273813us-gaap:SecondMortgageMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:US2021-07-012021-09-300001273813country:USus-gaap:HomeEquityMember2021-01-012021-12-310001273813srt:MinimumMemberus-gaap:HomeEquityMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:US2021-06-300001273813srt:MinimumMemberus-gaap:HomeEquityMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:US2021-09-300001273813us-gaap:SecondMortgageMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:US2020-12-310001273813us-gaap:SecondMortgageMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:US2021-12-310001273813us-gaap:SecondMortgageMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:US2021-09-30ago:Curve0001273813srt:MinimumMemberus-gaap:HomeEquityMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:US2021-12-310001273813us-gaap:HomeEquityMembersrt:MaximumMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:US2021-12-310001273813us-gaap:HomeEquityMembersrt:WeightedAverageMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:US2021-12-310001273813srt:MinimumMemberus-gaap:HomeEquityMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:US2020-12-310001273813us-gaap:HomeEquityMembersrt:MaximumMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:US2020-12-310001273813us-gaap:HomeEquityMembersrt:WeightedAverageMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:US2020-12-310001273813us-gaap:HomeEquityMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberago:FinancingReceivableModifiedinPrevious12MonthsMembercountry:US2021-12-310001273813us-gaap:HomeEquityMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberago:FinancingReceivableModifiedinPrevious12MonthsMembercountry:US2020-12-310001273813us-gaap:FinancingReceivables30To59DaysPastDueMemberus-gaap:HomeEquityMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:US2021-12-310001273813us-gaap:FinancingReceivables30To59DaysPastDueMemberus-gaap:HomeEquityMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:US2020-12-310001273813us-gaap:HomeEquityMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:USus-gaap:FinancingReceivables60To89DaysPastDueMember2021-12-310001273813us-gaap:HomeEquityMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:USus-gaap:FinancingReceivables60To89DaysPastDueMember2020-12-310001273813us-gaap:HomeEquityMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:USus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2021-12-310001273813us-gaap:HomeEquityMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:USus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2020-12-310001273813us-gaap:HomeEquityMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberago:FinancingReceivablesBankruptcyMembercountry:US2021-12-310001273813us-gaap:HomeEquityMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberago:FinancingReceivablesBankruptcyMembercountry:US2020-12-310001273813us-gaap:HomeEquityMemberago:FinancingReceivableForeclosureMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:US2021-12-310001273813us-gaap:HomeEquityMemberago:FinancingReceivableForeclosureMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:US2020-12-310001273813ago:FinancingReceivableRealEstateOwnedMemberus-gaap:HomeEquityMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:US2021-12-310001273813ago:FinancingReceivableRealEstateOwnedMemberus-gaap:HomeEquityMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:US2020-12-310001273813us-gaap:HomeEquityMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:US2021-12-310001273813us-gaap:HomeEquityMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:US2020-12-310001273813us-gaap:SecondMortgageMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:USago:BaseScenarioMember2021-01-012021-12-310001273813us-gaap:SecondMortgageMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:USago:BaseScenarioOneMember2021-01-012021-12-310001273813us-gaap:HomeEquityMemberus-gaap:SecondMortgageMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:USago:BaseScenarioOneMember2021-01-012021-12-310001273813us-gaap:SecondMortgageMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:USago:BasedScenarioTwoMember2021-01-012021-12-310001273813us-gaap:HomeEquityMemberus-gaap:SecondMortgageMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:USago:BasedScenarioTwoMember2021-01-012021-12-310001273813us-gaap:StudentLoanMemberus-gaap:InternalNoninvestmentGradeMember2021-12-310001273813us-gaap:InternalNoninvestmentGradeMemberago:LifeInsuranceTransactionMember2021-12-310001273813us-gaap:PremiumsReceivableMemberus-gaap:PremiumsReceivableMemberago:ForeignCurrencyConcentrationRiskMember2021-01-012021-12-310001273813us-gaap:PremiumsReceivableMemberus-gaap:PremiumsReceivableMemberago:ForeignCurrencyConcentrationRiskMember2020-01-012020-12-310001273813srt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMember2021-12-310001273813us-gaap:FinancialGuaranteeInsuranceSegmentMember2021-12-310001273813ago:FinancialGuaranteePoliciesPaidinInstallmentsMember2021-12-310001273813ago:FinancialGuaranteePoliciesPaidinInstallmentsMember2020-12-310001273813ago:FinancialGuaranteePoliciesPaidinInstallmentsMember2021-01-012021-12-310001273813ago:FinancialGuaranteePoliciesPaidinInstallmentsMember2020-01-012020-12-310001273813srt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMembercountry:USago:FinancialGuaranteeInsuranceAndOtherProductLineMemberago:PublicFinanceMember2021-12-310001273813srt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMembercountry:USago:FinancialGuaranteeInsuranceAndOtherProductLineMemberago:PublicFinanceMember2020-12-310001273813ago:NonUnitedStatesMembersrt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMemberago:FinancialGuaranteeInsuranceAndOtherProductLineMemberago:PublicFinanceMember2021-12-310001273813ago:NonUnitedStatesMembersrt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMemberago:FinancialGuaranteeInsuranceAndOtherProductLineMemberago:PublicFinanceMember2020-12-310001273813srt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMemberago:FinancialGuaranteeInsuranceAndOtherProductLineMemberago:PublicFinanceMember2021-12-310001273813srt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMemberago:FinancialGuaranteeInsuranceAndOtherProductLineMemberago:PublicFinanceMember2020-12-310001273813srt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:USago:FinancialGuaranteeInsuranceAndOtherProductLineMember2021-12-310001273813srt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:USago:FinancialGuaranteeInsuranceAndOtherProductLineMember2020-12-310001273813srt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMemberago:OtherStructuredFinanceMemberago:FinancialGuaranteeInsuranceAndOtherProductLineMember2021-12-310001273813srt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMemberago:OtherStructuredFinanceMemberago:FinancialGuaranteeInsuranceAndOtherProductLineMember2020-12-310001273813us-gaap:StructuredFinanceMembersrt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMemberago:FinancialGuaranteeInsuranceAndOtherProductLineMember2021-12-310001273813us-gaap:StructuredFinanceMembersrt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMemberago:FinancialGuaranteeInsuranceAndOtherProductLineMember2020-12-310001273813ago:FinancialGuaranteeInsuranceAndOtherProductLineMember2021-12-310001273813srt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMembercountry:USago:FinancialGuaranteeInsuranceAndOtherProductLineMemberago:PublicFinanceMember2021-01-012021-12-310001273813srt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMembercountry:USago:FinancialGuaranteeInsuranceAndOtherProductLineMemberago:PublicFinanceMember2020-01-012020-12-310001273813srt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMembercountry:USago:FinancialGuaranteeInsuranceAndOtherProductLineMemberago:PublicFinanceMember2019-01-012019-12-310001273813ago:NonUnitedStatesMembersrt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMemberago:FinancialGuaranteeInsuranceAndOtherProductLineMemberago:PublicFinanceMember2021-01-012021-12-310001273813ago:NonUnitedStatesMembersrt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMemberago:FinancialGuaranteeInsuranceAndOtherProductLineMemberago:PublicFinanceMember2020-01-012020-12-310001273813ago:NonUnitedStatesMembersrt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMemberago:FinancialGuaranteeInsuranceAndOtherProductLineMemberago:PublicFinanceMember2019-01-012019-12-310001273813srt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMemberago:FinancialGuaranteeInsuranceAndOtherProductLineMemberago:PublicFinanceMember2021-01-012021-12-310001273813srt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMemberago:FinancialGuaranteeInsuranceAndOtherProductLineMemberago:PublicFinanceMember2020-01-012020-12-310001273813srt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMemberago:FinancialGuaranteeInsuranceAndOtherProductLineMemberago:PublicFinanceMember2019-01-012019-12-310001273813srt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:USago:FinancialGuaranteeInsuranceAndOtherProductLineMember2021-01-012021-12-310001273813srt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:USago:FinancialGuaranteeInsuranceAndOtherProductLineMember2020-01-012020-12-310001273813srt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMemberus-gaap:ResidentialMortgageBackedSecuritiesMembercountry:USago:FinancialGuaranteeInsuranceAndOtherProductLineMember2019-01-012019-12-310001273813srt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMemberago:OtherStructuredFinanceMemberago:FinancialGuaranteeInsuranceAndOtherProductLineMember2021-01-012021-12-310001273813srt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMemberago:OtherStructuredFinanceMemberago:FinancialGuaranteeInsuranceAndOtherProductLineMember2020-01-012020-12-310001273813srt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMemberago:OtherStructuredFinanceMemberago:FinancialGuaranteeInsuranceAndOtherProductLineMember2019-01-012019-12-310001273813us-gaap:StructuredFinanceMembersrt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMemberago:FinancialGuaranteeInsuranceAndOtherProductLineMember2021-01-012021-12-310001273813us-gaap:StructuredFinanceMembersrt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMemberago:FinancialGuaranteeInsuranceAndOtherProductLineMember2020-01-012020-12-310001273813us-gaap:StructuredFinanceMembersrt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMemberago:FinancialGuaranteeInsuranceAndOtherProductLineMember2019-01-012019-12-310001273813srt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMemberus-gaap:InternalNoninvestmentGradeMemberago:InternalNoninvestmentGradeLevel1Member2021-12-310001273813srt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMemberago:InternalNoninvestmentGradeLevel2Memberus-gaap:InternalNoninvestmentGradeMember2021-12-310001273813ago:InternalNoninvestmentGradeLevel3Membersrt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMemberus-gaap:InternalNoninvestmentGradeMember2021-12-310001273813srt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMemberus-gaap:InternalNoninvestmentGradeMember2021-12-310001273813srt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMemberus-gaap:InternalNoninvestmentGradeMemberago:InternalNoninvestmentGradeLevel1Member2021-01-012021-12-310001273813srt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMemberago:InternalNoninvestmentGradeLevel2Memberus-gaap:InternalNoninvestmentGradeMember2021-01-012021-12-310001273813ago:InternalNoninvestmentGradeLevel3Membersrt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMemberus-gaap:InternalNoninvestmentGradeMember2021-01-012021-12-310001273813srt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMemberus-gaap:InternalNoninvestmentGradeMember2021-01-012021-12-310001273813srt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMemberus-gaap:InternalNoninvestmentGradeMemberago:InternalNoninvestmentGradeLevel1Member2020-12-310001273813srt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMemberago:InternalNoninvestmentGradeLevel2Memberus-gaap:InternalNoninvestmentGradeMember2020-12-310001273813ago:InternalNoninvestmentGradeLevel3Membersrt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMemberus-gaap:InternalNoninvestmentGradeMember2020-12-310001273813srt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMemberus-gaap:InternalNoninvestmentGradeMember2020-12-310001273813srt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMemberus-gaap:InternalNoninvestmentGradeMemberago:InternalNoninvestmentGradeLevel1Member2020-01-012020-12-310001273813srt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMemberago:InternalNoninvestmentGradeLevel2Memberus-gaap:InternalNoninvestmentGradeMember2020-01-012020-12-310001273813ago:InternalNoninvestmentGradeLevel3Membersrt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMemberus-gaap:InternalNoninvestmentGradeMember2020-01-012020-12-310001273813srt:ConsolidatedEntityExcludingVariableInterestEntitiesVIEMemberus-gaap:InternalNoninvestmentGradeMember2020-01-012020-12-310001273813us-gaap:InternalNoninvestmentGradeMember2020-01-012020-12-310001273813ago:AssuredGuarantyMunicipalCorpMember2021-12-310001273813srt:MinimumMemberus-gaap:VariableRateDemandObligationMember2021-12-310001273813us-gaap:VariableRateDemandObligationMembersrt:MaximumMember2021-12-310001273813srt:MinimumMemberus-gaap:VariableRateDemandObligationMember2021-01-012021-12-310001273813us-gaap:VariableRateDemandObligationMembersrt:MaximumMember2021-01-012021-12-310001273813us-gaap:VariableRateDemandObligationMember2021-01-012021-12-310001273813us-gaap:VariableRateDemandObligationMemberago:AssuredGuarantyMunicipalCorpandAssuredGuarantyCorpMember2021-12-310001273813us-gaap:VariableRateDemandObligationMemberago:InternalCreditBBBMinusRatingMemberago:AssuredGuarantyMunicipalCorpandAssuredGuarantyCorpMember2021-12-310001273813ago:AssumedBusinessMember2021-12-310001273813ago:AssuredGuarantyCorpMember2021-01-012021-12-310001273813ago:AssuredGuarantyReMember2021-01-012021-12-310001273813us-gaap:UncollateralizedMemberago:ARGOMember2021-12-310001273813ago:CededBusinessMember2021-12-310001273813ago:GrossInsuredSpecialtyAndReinsuranceBusinessMember2021-12-310001273813country:PR2020-01-012020-12-310001273813ago:DerivativeAggregateNotionalAmountMemberus-gaap:CreditConcentrationRiskMemberago:InternalCreditRatingAAAMember2021-12-310001273813ago:DerivativeAggregateNotionalAmountMemberus-gaap:CreditConcentrationRiskMemberago:InternalCreditRatingAAAMember2021-01-012021-12-310001273813ago:DerivativeAggregateNotionalAmountMemberus-gaap:CreditConcentrationRiskMemberago:InternalCreditRatingAAAMember2020-12-310001273813ago:DerivativeAggregateNotionalAmountMemberus-gaap:CreditConcentrationRiskMemberago:InternalCreditRatingAAAMember2020-01-012020-12-310001273813ago:DerivativeAggregateNotionalAmountMemberus-gaap:CreditConcentrationRiskMemberago:InternalCreditRatingAAMember2021-12-310001273813ago:DerivativeAggregateNotionalAmountMemberus-gaap:CreditConcentrationRiskMemberago:InternalCreditRatingAAMember2021-01-012021-12-310001273813ago:DerivativeAggregateNotionalAmountMemberus-gaap:CreditConcentrationRiskMemberago:InternalCreditRatingAAMember2020-12-310001273813ago:DerivativeAggregateNotionalAmountMemberus-gaap:CreditConcentrationRiskMemberago:InternalCreditRatingAAMember2020-01-012020-12-310001273813ago:InternalCreditRatingAMemberago:DerivativeAggregateNotionalAmountMemberus-gaap:CreditConcentrationRiskMember2021-12-310001273813ago:InternalCreditRatingAMemberago:DerivativeAggregateNotionalAmountMemberus-gaap:CreditConcentrationRiskMember2021-01-012021-12-310001273813ago:InternalCreditRatingAMemberago:DerivativeAggregateNotionalAmountMemberus-gaap:CreditConcentrationRiskMember2020-12-310001273813ago:InternalCreditRatingAMemberago:DerivativeAggregateNotionalAmountMemberus-gaap:CreditConcentrationRiskMember2020-01-012020-12-310001273813ago:DerivativeAggregateNotionalAmountMemberago:InternalCreditRatingBBBMemberus-gaap:CreditConcentrationRiskMember2021-12-310001273813ago:DerivativeAggregateNotionalAmountMemberago:InternalCreditRatingBBBMemberus-gaap:CreditConcentrationRiskMember2021-01-012021-12-310001273813ago:DerivativeAggregateNotionalAmountMemberago:InternalCreditRatingBBBMemberus-gaap:CreditConcentrationRiskMember2020-12-310001273813ago:DerivativeAggregateNotionalAmountMemberago:InternalCreditRatingBBBMemberus-gaap:CreditConcentrationRiskMember2020-01-012020-12-310001273813ago:DerivativeAggregateNotionalAmountMemberus-gaap:CreditConcentrationRiskMemberus-gaap:InternalNoninvestmentGradeMember2021-12-310001273813ago:DerivativeAggregateNotionalAmountMemberus-gaap:CreditConcentrationRiskMemberus-gaap:InternalNoninvestmentGradeMember2021-01-012021-12-310001273813ago:DerivativeAggregateNotionalAmountMemberus-gaap:CreditConcentrationRiskMemberus-gaap:InternalNoninvestmentGradeMember2020-12-310001273813ago:DerivativeAggregateNotionalAmountMemberus-gaap:CreditConcentrationRiskMemberus-gaap:InternalNoninvestmentGradeMember2020-01-012020-12-310001273813ago:DerivativeAggregateNotionalAmountMemberus-gaap:CreditConcentrationRiskMember2021-12-310001273813ago:DerivativeAggregateNotionalAmountMemberus-gaap:CreditConcentrationRiskMember2021-01-012021-12-310001273813ago:DerivativeAggregateNotionalAmountMemberus-gaap:CreditConcentrationRiskMember2020-12-310001273813ago:DerivativeAggregateNotionalAmountMemberus-gaap:CreditConcentrationRiskMember2020-01-012020-12-310001273813us-gaap:CreditDefaultSwapMember2020-12-31ago:Transaction0001273813ago:CollateralDebtObligationsCreditDerivativeContractsGrossParwithCollateralPostingRequirementsMember2021-12-31ago:Counterparty0001273813ago:CollateralDebtObligationsMaximumPostingRequirementMember2021-12-310001273813ago:AssuredGuarantyCorpMemberago:CreditRiskContract5YearSpreadMember2021-12-310001273813ago:AssuredGuarantyCorpMemberago:CreditRiskContract5YearSpreadMember2020-12-310001273813ago:AssuredGuarantyCorpMemberago:CreditRiskContract5YearSpreadMember2019-12-310001273813ago:CreditRiskContract1YearSpreadMemberago:AssuredGuarantyCorpMember2021-12-310001273813ago:CreditRiskContract1YearSpreadMemberago:AssuredGuarantyCorpMember2020-12-310001273813ago:CreditRiskContract1YearSpreadMemberago:AssuredGuarantyCorpMember2019-12-31ago:manager0001273813ago:FutureEquityInvestmentsMember2021-12-310001273813ago:SecuritiesManagedExternallyMember2021-12-310001273813ago:SecuritiesManagedExternallyMember2020-12-310001273813ago:InvestmentsManagedInternallyMember2021-12-310001273813ago:InvestmentsManagedInternallyMember2020-12-310001273813ago:SecuritiesManagedInternallybyAssuredInvestmentManagementMember2021-12-310001273813ago:SecuritiesManagedInternallybyAssuredInvestmentManagementMember2020-12-310001273813ago:EquityMethodInvestmentsAssuredIMMember2021-12-310001273813ago:EquityMethodInvestmentsAssuredIMMember2020-12-310001273813ago:EquityMethodInvestmentsOtherMember2021-12-310001273813ago:EquityMethodInvestmentsOtherMember2020-12-310001273813ago:OtherInvestmentsInternallyManagedMember2021-12-310001273813ago:OtherInvestmentsInternallyManagedMember2020-12-310001273813ago:FutureEquityInvestmentsMemberago:AssuredInvestmentManagementFundsMemberago:AssuredGuarantySubsidiariesMember2021-12-310001273813ago:AssuredInvestmentManagementFundsMemberus-gaap:EquityMethodInvestmentsMemberago:AssuredGuarantySubsidiariesMember2021-01-012021-12-310001273813ago:AssuredInvestmentManagementFundsMemberago:InvestedCapitalMemberago:AssuredGuarantySubsidiariesMember2021-01-012021-12-310001273813ago:UnfundedCommitmentMemberago:AssuredInvestmentManagementFundsMemberago:AssuredGuarantySubsidiariesMember2021-01-012021-12-310001273813ago:AssuredGuarantyAssetStrategiesLLCMemberago:AssuredInvestmentManagementFundsMemberus-gaap:EquityMethodInvestmentsMember2021-12-310001273813ago:AssuredGuarantyAssetStrategiesLLCMemberago:AssuredInvestmentManagementFundsMemberus-gaap:EquityMethodInvestmentsMember2020-12-310001273813us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FixedMaturitiesMember2021-12-310001273813us-gaap:USTreasuryAndGovernmentMemberus-gaap:FixedMaturitiesMember2021-12-310001273813us-gaap:FixedMaturitiesMemberus-gaap:CorporateDebtSecuritiesMember2021-12-310001273813us-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FixedMaturitiesMember2021-12-310001273813us-gaap:CommercialMortgageBackedSecuritiesMemberus-gaap:FixedMaturitiesMember2021-12-310001273813us-gaap:FixedMaturitiesMemberago:CLOInvestmentsMember2021-12-310001273813ago:OtherAssetBackedSecuritiesMemberus-gaap:FixedMaturitiesMember2021-12-310001273813us-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FixedMaturitiesMember2021-12-310001273813us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FixedMaturitiesMember2020-12-310001273813us-gaap:USTreasuryAndGovernmentMemberus-gaap:FixedMaturitiesMember2020-12-310001273813us-gaap:FixedMaturitiesMemberus-gaap:CorporateDebtSecuritiesMember2020-12-310001273813us-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FixedMaturitiesMember2020-12-310001273813us-gaap:CommercialMortgageBackedSecuritiesMemberus-gaap:FixedMaturitiesMember2020-12-310001273813us-gaap:FixedMaturitiesMemberago:CLOInvestmentsMember2020-12-310001273813ago:OtherAssetBackedSecuritiesMemberus-gaap:FixedMaturitiesMember2020-12-310001273813us-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FixedMaturitiesMember2020-12-310001273813us-gaap:USStatesAndPoliticalSubdivisionsMember2021-12-310001273813us-gaap:USTreasuryAndGovernmentMember2021-12-310001273813us-gaap:CorporateDebtSecuritiesMember2021-12-310001273813us-gaap:ResidentialMortgageBackedSecuritiesMember2021-12-310001273813ago:CLOInvestmentsMember2021-12-310001273813us-gaap:ForeignGovernmentDebtSecuritiesMember2021-12-31ago:Security0001273813us-gaap:USStatesAndPoliticalSubdivisionsMember2020-12-310001273813us-gaap:USTreasuryAndGovernmentMember2020-12-310001273813us-gaap:CorporateDebtSecuritiesMember2020-12-310001273813us-gaap:ResidentialMortgageBackedSecuritiesMember2020-12-310001273813us-gaap:CommercialMortgageBackedSecuritiesMember2020-12-310001273813ago:CLOInvestmentsMember2020-12-310001273813us-gaap:ForeignGovernmentDebtSecuritiesMember2020-12-310001273813ago:AssuredGuarantySubsidiariesMember2021-12-310001273813ago:AssuredGuarantySubsidiariesMember2020-12-310001273813ago:SecuritiesManagedExternallyMember2021-01-012021-12-310001273813ago:SecuritiesManagedExternallyMember2020-01-012020-12-310001273813ago:SecuritiesManagedExternallyMember2019-01-012019-12-310001273813ago:InsuredFinancialObligationsLossMitigationSecurities2021-01-012021-12-310001273813ago:InsuredFinancialObligationsLossMitigationSecurities2020-01-012020-12-310001273813ago:InsuredFinancialObligationsLossMitigationSecurities2019-01-012019-12-310001273813ago:AssuredInvestmentManagementFundsMember2021-01-012021-12-310001273813ago:AssuredInvestmentManagementFundsMember2020-01-012020-12-310001273813ago:AssuredInvestmentManagementFundsMember2019-01-012019-12-310001273813srt:CumulativeEffectPeriodOfAdoptionAdjustmentMember2019-12-310001273813ago:PCISecuritiesMember2021-01-012021-12-310001273813ago:PCISecuritiesMember2020-01-012020-12-310001273813us-gaap:EquitySecuritiesMemberago:EquityMethodInvestmentsAssuredIMMember2021-01-012021-12-310001273813us-gaap:EquitySecuritiesMemberago:EquityMethodInvestmentsAssuredIMMember2020-01-012020-12-310001273813us-gaap:EquitySecuritiesMemberago:EquityMethodInvestmentsAssuredIMMember2019-01-012019-12-310001273813us-gaap:EquitySecuritiesMemberago:OtherEquityMethodInvestmentsMember2021-01-012021-12-310001273813us-gaap:EquitySecuritiesMemberago:OtherEquityMethodInvestmentsMember2020-01-012020-12-310001273813us-gaap:EquitySecuritiesMemberago:OtherEquityMethodInvestmentsMember2019-01-012019-12-310001273813us-gaap:EquitySecuritiesMember2021-01-012021-12-310001273813us-gaap:EquitySecuritiesMember2020-01-012020-12-310001273813us-gaap:EquitySecuritiesMember2019-01-012019-12-310001273813us-gaap:FairValueMeasuredAtNetAssetValuePerShareMember2021-01-012021-12-310001273813us-gaap:FairValueMeasuredAtNetAssetValuePerShareMember2020-01-012020-12-310001273813us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvesteesMember2021-12-310001273813us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvesteesMember2020-12-310001273813us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvesteesMember2021-01-012021-12-310001273813us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvesteesMember2020-01-012020-12-310001273813us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvesteesMember2019-01-012019-12-310001273813ago:FinancialGuarantyVariableInterestEntitiesMember2021-12-310001273813ago:FinancialGuarantyVariableInterestEntitiesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2020-12-31ago:Entity0001273813ago:FinancialGuarantyVariableInterestEntitiesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2019-12-310001273813ago:FinancialGuarantyVariableInterestEntitiesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2018-12-310001273813ago:FinancialGuarantyVariableInterestEntitiesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2021-01-012021-12-310001273813ago:FinancialGuarantyVariableInterestEntitiesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2020-01-012020-12-310001273813ago:FinancialGuarantyVariableInterestEntitiesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2019-01-012019-12-310001273813ago:FinancialGuarantyVariableInterestEntitiesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2021-12-310001273813us-gaap:FirstMortgageMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberago:FinancialGuarantyVariableInterestEntitiesMembercountry:USus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2021-12-310001273813us-gaap:FirstMortgageMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberago:FinancialGuarantyVariableInterestEntitiesMembercountry:USus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2020-12-310001273813us-gaap:SecondMortgageMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberago:FinancialGuarantyVariableInterestEntitiesMembercountry:USus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2021-12-310001273813us-gaap:SecondMortgageMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberago:FinancialGuarantyVariableInterestEntitiesMembercountry:USus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2020-12-310001273813us-gaap:RecourseMemberus-gaap:FirstMortgageMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberago:FinancialGuarantyVariableInterestEntitiesMembercountry:USus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2021-12-310001273813us-gaap:RecourseMemberus-gaap:FirstMortgageMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberago:FinancialGuarantyVariableInterestEntitiesMembercountry:USus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2020-12-310001273813us-gaap:RecourseMemberus-gaap:SecondMortgageMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberago:FinancialGuarantyVariableInterestEntitiesMembercountry:USus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2021-12-310001273813us-gaap:RecourseMemberus-gaap:SecondMortgageMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberago:FinancialGuarantyVariableInterestEntitiesMembercountry:USus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2020-12-310001273813us-gaap:RecourseMemberago:FinancialGuarantyVariableInterestEntitiesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2021-12-310001273813us-gaap:RecourseMemberago:FinancialGuarantyVariableInterestEntitiesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2020-12-310001273813us-gaap:FirstMortgageMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberago:FinancialGuarantyVariableInterestEntitiesMembercountry:USus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberus-gaap:NonrecourseMember2021-12-310001273813us-gaap:FirstMortgageMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberago:FinancialGuarantyVariableInterestEntitiesMembercountry:USus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberus-gaap:NonrecourseMember2020-12-310001273813ago:FinancialGuarantyVariableInterestEntitiesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberus-gaap:NonrecourseMember2021-12-310001273813ago:FinancialGuarantyVariableInterestEntitiesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberus-gaap:NonrecourseMember2020-12-310001273813ago:ConsolidatedInvestmentVehiclesMember2020-12-31ago:consolidatedInvestmentVehicle0001273813ago:ConsolidatedInvestmentVehiclesMember2021-12-310001273813us-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:ConsolidatedInvestmentVehiclesMember2021-01-012021-12-31ago:consolidatedInvestmentFund0001273813us-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:ConsolidatedInvestmentVehiclesMember2020-01-012020-12-31ago:consolidatedCLOago:cLOWarehouse0001273813ago:CLOWarehouseMemberago:ConsolidatedInvestmentVehiclesMember2021-01-012021-12-31ago:fund0001273813ago:CLOWarehouseMemberago:ConsolidatedInvestmentVehiclesMember2020-01-012020-12-310001273813us-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:ConsolidatedInvestmentVehiclesMember2020-12-310001273813us-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:ConsolidatedInvestmentVehiclesMember2019-12-310001273813us-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:ConsolidatedInvestmentVehiclesMember2018-12-310001273813us-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:ConsolidatedInvestmentVehiclesMember2019-01-012019-12-310001273813us-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:ConsolidatedInvestmentVehiclesMember2021-12-310001273813ago:AssuredIMMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2021-10-012021-12-310001273813ago:AssuredIMMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2021-12-310001273813us-gaap:VariableInterestEntityPrimaryBeneficiaryMember2021-01-012021-12-310001273813us-gaap:VariableInterestEntityPrimaryBeneficiaryMember2020-01-012020-12-310001273813us-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:OtherMember2020-01-012020-12-310001273813ago:FundInvestmentsMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:CashandRestrictedCashMember2021-12-310001273813ago:FundInvestmentsMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:CashandRestrictedCashMember2020-12-310001273813ago:FundInvestmentsMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:EquitySecuritiesandWarrantsMember2021-12-310001273813ago:FundInvestmentsMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:EquitySecuritiesandWarrantsMember2020-12-310001273813us-gaap:USStatesAndPoliticalSubdivisionsMemberago:FundInvestmentsMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2021-12-310001273813us-gaap:USStatesAndPoliticalSubdivisionsMemberago:FundInvestmentsMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2020-12-310001273813us-gaap:DebtSecuritiesMemberago:FundInvestmentsMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2021-12-310001273813us-gaap:DebtSecuritiesMemberago:FundInvestmentsMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2020-12-310001273813ago:FundInvestmentsMemberago:StructuredProductsMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2021-12-310001273813ago:FundInvestmentsMemberago:StructuredProductsMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2020-12-310001273813ago:FundInvestmentsMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:DuefromBrokersandCounterpartiesMember2021-12-310001273813ago:FundInvestmentsMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:DuefromBrokersandCounterpartiesMember2020-12-310001273813us-gaap:OtherAssetsMemberago:FundInvestmentsMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2021-12-310001273813us-gaap:OtherAssetsMemberago:FundInvestmentsMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2020-12-310001273813ago:CLOInvestmentsMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:CashandRestrictedCashMember2021-12-310001273813ago:CLOInvestmentsMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:CashandRestrictedCashMember2020-12-310001273813ago:CLOInvestmentsMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:CorporateLoansofCFEAtFairValueMember2021-12-310001273813ago:CLOInvestmentsMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:CorporateLoansofCFEAtFairValueMember2020-12-310001273813ago:CLOInvestmentsMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:LoansAtFairValueOptionMember2021-12-310001273813ago:CLOInvestmentsMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:LoansAtFairValueOptionMember2020-12-310001273813us-gaap:ShortTermInvestmentsMemberago:CLOInvestmentsMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2021-12-310001273813us-gaap:ShortTermInvestmentsMemberago:CLOInvestmentsMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2020-12-310001273813ago:CLOInvestmentsMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:DuefromBrokersandCounterpartiesMember2021-12-310001273813ago:CLOInvestmentsMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:DuefromBrokersandCounterpartiesMember2020-12-310001273813ago:AssetsofConsolidatedInvestmentVehiclesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2021-12-310001273813ago:AssetsofConsolidatedInvestmentVehiclesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMember2020-12-310001273813ago:CollateralizedLoanObligationsofCFEAtFairValueMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:LiabilitiesofConsolidatedInvestmentVehiclesMember2021-12-310001273813ago:CollateralizedLoanObligationsofCFEAtFairValueMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:LiabilitiesofConsolidatedInvestmentVehiclesMember2020-12-310001273813us-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:LiabilitiesofConsolidatedInvestmentVehiclesMemberago:BankDebtOfCLOWarehousesAtFairValueOptionMember2021-12-310001273813us-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:LiabilitiesofConsolidatedInvestmentVehiclesMemberago:BankDebtOfCLOWarehousesAtFairValueOptionMember2020-12-310001273813us-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:LiabilitiesofConsolidatedInvestmentVehiclesMemberago:SecuritiesSoldShortMember2021-12-310001273813us-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:LiabilitiesofConsolidatedInvestmentVehiclesMemberago:SecuritiesSoldShortMember2020-12-310001273813ago:DuetoBrokersandCounterpartiesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:LiabilitiesofConsolidatedInvestmentVehiclesMember2021-12-310001273813ago:DuetoBrokersandCounterpartiesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:LiabilitiesofConsolidatedInvestmentVehiclesMember2020-12-310001273813us-gaap:OtherLiabilitiesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:LiabilitiesofConsolidatedInvestmentVehiclesMember2021-12-310001273813us-gaap:OtherLiabilitiesMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:LiabilitiesofConsolidatedInvestmentVehiclesMember2020-12-310001273813us-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:LiabilitiesofConsolidatedInvestmentVehiclesMember2021-12-310001273813us-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:LiabilitiesofConsolidatedInvestmentVehiclesMember2020-12-310001273813ago:FundInvestmentsMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:InvestmentsInAssuredIMFundsAndOtherAffiliatedEntitiesMemberago:EquitySecuritiesandWarrantsMember2021-12-310001273813ago:FundInvestmentsMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:InvestmentsInAssuredIMFundsAndOtherAffiliatedEntitiesMemberago:EquitySecuritiesandWarrantsMember2020-12-310001273813ago:FundInvestmentsMemberago:StructuredProductsMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:InvestmentsInAssuredIMFundsAndOtherAffiliatedEntitiesMember2021-12-310001273813ago:FundInvestmentsMemberago:StructuredProductsMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:InvestmentsInAssuredIMFundsAndOtherAffiliatedEntitiesMember2020-12-310001273813ago:AssetsofConsolidatedInvestmentVehiclesMemberago:VotingInterestEntityMemberus-gaap:InvestmentsMember2021-12-310001273813ago:AssetsofConsolidatedInvestmentVehiclesMemberago:VotingInterestEntityMemberus-gaap:InvestmentsMember2020-12-310001273813ago:CollateralizedLoanObligationsofCFEAtFairValueMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:LiabilitiesofConsolidatedInvestmentVehiclesMember2021-01-012021-12-310001273813ago:CollateralizedLoanObligationsofCFEAtFairValueMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:LiabilitiesofConsolidatedInvestmentVehiclesMember2020-01-012020-12-310001273813us-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:LiabilitiesofConsolidatedInvestmentVehiclesMemberago:BankDebtOfCLOWarehousesAtFairValueOptionMember2021-01-012021-12-310001273813us-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:LiabilitiesofConsolidatedInvestmentVehiclesMemberago:BankDebtOfCLOWarehousesAtFairValueOptionMember2020-01-012020-12-310001273813ago:ConsolidatedInvestmentVehiclesMember2019-12-310001273813ago:ConsolidatedInvestmentVehiclesMember2018-12-310001273813ago:ConsolidatedInvestmentVehiclesMember2021-01-012021-12-310001273813ago:ConsolidatedInvestmentVehiclesMember2020-01-012020-12-310001273813ago:ConsolidatedInvestmentVehiclesMember2019-01-012019-12-310001273813ago:FutureEquityInvestmentsMembersrt:MaximumMemberago:ConsolidatedInvestmentVehiclesMember2021-01-012021-12-310001273813us-gaap:ForeignExchangeForwardMemberago:ConsolidatedInvestmentVehiclesMember2021-12-310001273813us-gaap:InterestRateSwapMemberago:ConsolidatedInvestmentVehiclesMember2021-12-310001273813us-gaap:ForeignExchangeForwardMembersrt:ArithmeticAverageMemberago:ConsolidatedInvestmentVehiclesMember2021-12-310001273813us-gaap:InterestRateSwapMembersrt:ArithmeticAverageMemberago:ConsolidatedInvestmentVehiclesMember2021-12-310001273813us-gaap:ForeignExchangeForwardMemberago:ConsolidatedInvestmentVehiclesMember2020-12-310001273813us-gaap:InterestRateSwapMemberago:ConsolidatedInvestmentVehiclesMember2020-12-310001273813us-gaap:ForeignExchangeForwardMembersrt:ArithmeticAverageMemberago:ConsolidatedInvestmentVehiclesMember2020-12-310001273813us-gaap:InterestRateSwapMembersrt:ArithmeticAverageMemberago:ConsolidatedInvestmentVehiclesMember2020-12-310001273813srt:MaximumMemberago:ConsolidatedInvestmentVehiclesMemberago:ForwardContractsAndInterestRateSwapsMember2020-01-012020-12-310001273813srt:MaximumMemberago:ConsolidatedInvestmentVehiclesMemberago:ForwardContractsAndInterestRateSwapsMember2021-01-012021-12-310001273813us-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:ConsolidatedInvestmentVehiclesMemberus-gaap:LineOfCreditMember2021-12-310001273813us-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:ConsolidatedInvestmentVehiclesMemberus-gaap:LineOfCreditMember2021-01-012021-12-31iso4217:EUR0001273813ago:JointHealthcareFundMemberus-gaap:LineOfCreditMember2021-12-310001273813ago:ConsolidatedHealthcareFundMemberus-gaap:LineOfCreditMember2021-12-310001273813ago:JointHealthcareFundMemberus-gaap:LineOfCreditMember2021-12-090001273813ago:JointHealthcareFundMemberus-gaap:PrimeRateMemberus-gaap:LineOfCreditMember2021-01-012021-12-310001273813ago:EUR20211Memberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:ConsolidatedInvestmentVehiclesMemberus-gaap:LineOfCreditMember2020-01-012020-12-310001273813us-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:ConsolidatedInvestmentVehiclesMemberago:AssuredIMMemberus-gaap:LineOfCreditMember2020-01-012020-12-31ago:policy0001273813us-gaap:VariableInterestEntityPrimaryBeneficiaryMember2020-12-310001273813us-gaap:VariableInterestEntityPrimaryBeneficiaryMember2021-12-310001273813ago:EURIBORMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:ConsolidatedInvestmentVehiclesMemberus-gaap:LineOfCreditMember2021-01-012021-12-310001273813us-gaap:LondonInterbankOfferedRateLIBORMemberus-gaap:VariableInterestEntityPrimaryBeneficiaryMemberago:ConsolidatedInvestmentVehiclesMemberus-gaap:LineOfCreditMember2021-01-012021-12-310001273813us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2021-12-310001273813srt:MinimumMemberus-gaap:CreditDefaultSwapMemberus-gaap:MeasurementInputDiscountRateMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2021-01-012021-12-310001273813us-gaap:CreditDefaultSwapMemberus-gaap:MeasurementInputDiscountRateMembersrt:MaximumMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2021-01-012021-12-310001273813srt:MinimumMemberus-gaap:CreditDefaultSwapMemberus-gaap:MeasurementInputDiscountRateMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2020-01-012020-12-310001273813us-gaap:CreditDefaultSwapMemberus-gaap:MeasurementInputDiscountRateMembersrt:MaximumMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2020-01-012020-12-310001273813us-gaap:FairValueInputsLevel1Memberus-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310001273813us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueInputsLevel2Memberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310001273813us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310001273813us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310001273813us-gaap:FairValueInputsLevel1Memberus-gaap:USTreasuryAndGovernmentMemberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310001273813us-gaap:FairValueInputsLevel2Memberus-gaap:USTreasuryAndGovernmentMemberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310001273813us-gaap:FairValueInputsLevel3Memberus-gaap:USTreasuryAndGovernmentMemberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310001273813us-gaap:USTreasuryAndGovernmentMemberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310001273813us-gaap:FairValueInputsLevel1Memberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMember2021-12-310001273813us-gaap:FairValueInputsLevel2Memberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMember2021-12-310001273813us-gaap:FairValueInputsLevel3Memberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMember2021-12-310001273813us-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMember2021-12-310001273813us-gaap:FairValueInputsLevel1Memberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310001273813us-gaap:FairValueInputsLevel2Memberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310001273813us-gaap:FairValueInputsLevel3Memberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310001273813us-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310001273813us-gaap:FairValueInputsLevel1Memberus-gaap:CommercialMortgageBackedSecuritiesMemberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310001273813us-gaap:CommercialMortgageBackedSecuritiesMemberus-gaap:FairValueInputsLevel2Memberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310001273813us-gaap:FairValueInputsLevel3Memberus-gaap:CommercialMortgageBackedSecuritiesMemberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310001273813us-gaap:CommercialMortgageBackedSecuritiesMemberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310001273813us-gaap:FairValueInputsLevel1Memberus-gaap:AssetBackedSecuritiesMemberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310001273813us-gaap:AssetBackedSecuritiesMemberus-gaap:FairValueInputsLevel2Memberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310001273813us-gaap:AssetBackedSecuritiesMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310001273813us-gaap:AssetBackedSecuritiesMemberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310001273813us-gaap:FairValueInputsLevel1Memberus-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310001273813us-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueInputsLevel2Memberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310001273813us-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310001273813us-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310001273813us-gaap:FairValueInputsLevel1Memberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310001273813us-gaap:FairValueInputsLevel2Memberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310001273813us-gaap:FairValueInputsLevel3Memberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310001273813us-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310001273813us-gaap:FairValueInputsLevel1Memberus-gaap:ShortTermInvestmentsMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310001273813us-gaap:FairValueInputsLevel2Memberus-gaap:ShortTermInvestmentsMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310001273813us-gaap:FairValueInputsLevel3Memberus-gaap:ShortTermInvestmentsMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310001273813us-gaap:ShortTermInvestmentsMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310001273813us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMember2021-12-310001273813us-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMember2021-12-310001273813us-gaap:FairValueMeasurementsRecurringMember2021-12-310001273813us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberago:EquitySecuritiesandWarrantsMemberago:FundInvestmentsMember2021-12-310001273813us-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMemberago:EquitySecuritiesandWarrantsMemberago:FundInvestmentsMember2021-12-310001273813us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberago:EquitySecuritiesandWarrantsMemberago:FundInvestmentsMember2021-12-310001273813us-gaap:FairValueMeasurementsRecurringMemberago:EquitySecuritiesandWarrantsMemberago:FundInvestmentsMember2021-12-310001273813us-gaap:FairValueInputsLevel1Memberus-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueMeasurementsRecurringMemberago:FundInvestmentsMember2021-12-310001273813us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMemberago:FundInvestmentsMember2021-12-310001273813us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberago:FundInvestmentsMember2021-12-310001273813us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueMeasurementsRecurringMemberago:FundInvestmentsMember2021-12-310001273813us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMemberago:FundInvestmentsMember2021-12-310001273813us-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMemberago:FundInvestmentsMember2021-12-310001273813us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMemberago:FundInvestmentsMember2021-12-310001273813us-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMemberago:FundInvestmentsMember2021-12-310001273813us-gaap:FairValueInputsLevel1Memberago:StructuredProductsMemberus-gaap:FairValueMeasurementsRecurringMemberago:FundInvestmentsMember2021-12-310001273813us-gaap:FairValueInputsLevel2Memberago:StructuredProductsMemberus-gaap:FairValueMeasurementsRecurringMemberago:FundInvestmentsMember2021-12-310001273813us-gaap:FairValueInputsLevel3Memberago:StructuredProductsMemberus-gaap:FairValueMeasurementsRecurringMemberago:FundInvestmentsMember2021-12-310001273813ago:StructuredProductsMemberus-gaap:FairValueMeasurementsRecurringMemberago:FundInvestmentsMember2021-12-310001273813us-gaap:FairValueInputsLevel1Memberago:CLOInvestmentsMemberus-gaap:DebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310001273813ago:CLOInvestmentsMemberus-gaap:DebtSecuritiesMemberus-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMember2021-12-310001273813ago:CLOInvestmentsMemberus-gaap:FairValueInputsLevel3Memberus-gaap:DebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310001273813ago:CLOInvestmentsMemberus-gaap:DebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310001273813us-gaap:FairValueInputsLevel1Memberago:CLOInvestmentsMemberus-gaap:ShortTermInvestmentsMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310001273813ago:CLOInvestmentsMemberus-gaap:FairValueInputsLevel2Memberus-gaap:ShortTermInvestmentsMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310001273813ago:CLOInvestmentsMemberus-gaap:FairValueInputsLevel3Memberus-gaap:ShortTermInvestmentsMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310001273813ago:CLOInvestmentsMemberus-gaap:ShortTermInvestmentsMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310001273813us-gaap:FairValueInputsLevel1Memberago:CollateralizedLoanObligationsofCFEAtFairValueMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310001273813ago:CollateralizedLoanObligationsofCFEAtFairValueMemberus-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMember2021-12-310001273813us-gaap:FairValueInputsLevel3Memberago:CollateralizedLoanObligationsofCFEAtFairValueMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310001273813ago:CollateralizedLoanObligationsofCFEAtFairValueMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310001273813us-gaap:FairValueInputsLevel1Memberago:BankDebtOfCollateralizedLoanObligationWarehousesMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310001273813us-gaap:FairValueInputsLevel2Memberago:BankDebtOfCollateralizedLoanObligationWarehousesMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310001273813us-gaap:FairValueInputsLevel3Memberago:BankDebtOfCollateralizedLoanObligationWarehousesMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310001273813ago:BankDebtOfCollateralizedLoanObligationWarehousesMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310001273813us-gaap:FairValueInputsLevel1Memberago:SecuritiesSoldShortMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310001273813us-gaap:FairValueInputsLevel2Memberago:SecuritiesSoldShortMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310001273813us-gaap:FairValueInputsLevel3Memberago:SecuritiesSoldShortMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310001273813ago:SecuritiesSoldShortMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310001273813us-gaap:BorrowingsMemberus-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMember2021-12-310001273813us-gaap:BorrowingsMemberus-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMember2021-12-310001273813us-gaap:BorrowingsMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2021-12-310001273813us-gaap:BorrowingsMemberus-gaap:FairValueMeasurementsRecurringMember2021-12-310001273813us-gaap:FairValueInputsLevel1Memberus-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310001273813us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueInputsLevel2Memberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310001273813us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310001273813us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310001273813us-gaap:FairValueInputsLevel1Memberus-gaap:USTreasuryAndGovernmentMemberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310001273813us-gaap:FairValueInputsLevel2Memberus-gaap:USTreasuryAndGovernmentMemberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310001273813us-gaap:FairValueInputsLevel3Memberus-gaap:USTreasuryAndGovernmentMemberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310001273813us-gaap:USTreasuryAndGovernmentMemberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310001273813us-gaap:FairValueInputsLevel1Memberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMember2020-12-310001273813us-gaap:FairValueInputsLevel2Memberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMember2020-12-310001273813us-gaap:FairValueInputsLevel3Memberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMember2020-12-310001273813us-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMember2020-12-310001273813us-gaap:FairValueInputsLevel1Memberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310001273813us-gaap:FairValueInputsLevel2Memberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310001273813us-gaap:FairValueInputsLevel3Memberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310001273813us-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310001273813us-gaap:FairValueInputsLevel1Memberus-gaap:CommercialMortgageBackedSecuritiesMemberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310001273813us-gaap:CommercialMortgageBackedSecuritiesMemberus-gaap:FairValueInputsLevel2Memberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310001273813us-gaap:FairValueInputsLevel3Memberus-gaap:CommercialMortgageBackedSecuritiesMemberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310001273813us-gaap:CommercialMortgageBackedSecuritiesMemberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310001273813us-gaap:FairValueInputsLevel1Memberus-gaap:AssetBackedSecuritiesMemberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310001273813us-gaap:AssetBackedSecuritiesMemberus-gaap:FairValueInputsLevel2Memberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310001273813us-gaap:AssetBackedSecuritiesMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310001273813us-gaap:AssetBackedSecuritiesMemberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310001273813us-gaap:FairValueInputsLevel1Memberus-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310001273813us-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueInputsLevel2Memberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310001273813us-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310001273813us-gaap:ForeignGovernmentDebtSecuritiesMemberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310001273813us-gaap:FairValueInputsLevel1Memberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310001273813us-gaap:FairValueInputsLevel2Memberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310001273813us-gaap:FairValueInputsLevel3Memberus-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310001273813us-gaap:FixedMaturitiesMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310001273813us-gaap:FairValueInputsLevel1Memberus-gaap:ShortTermInvestmentsMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310001273813us-gaap:FairValueInputsLevel2Memberus-gaap:ShortTermInvestmentsMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310001273813us-gaap:FairValueInputsLevel3Memberus-gaap:ShortTermInvestmentsMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310001273813us-gaap:ShortTermInvestmentsMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310001273813us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMember2020-12-310001273813us-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMember2020-12-310001273813us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2020-12-310001273813us-gaap:FairValueMeasurementsRecurringMember2020-12-310001273813us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberago:EquitySecuritiesandWarrantsMemberago:FundInvestmentsMember2020-12-310001273813us-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMemberago:EquitySecuritiesandWarrantsMemberago:FundInvestmentsMember2020-12-310001273813us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberago:EquitySecuritiesandWarrantsMemberago:FundInvestmentsMember2020-12-310001273813us-gaap:FairValueMeasurementsRecurringMemberago:EquitySecuritiesandWarrantsMemberago:FundInvestmentsMember2020-12-310001273813us-gaap:FairValueInputsLevel1Memberus-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueMeasurementsRecurringMemberago:FundInvestmentsMember2020-12-310001273813us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMemberago:FundInvestmentsMember2020-12-310001273813us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberago:FundInvestmentsMember2020-12-310001273813us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueMeasurementsRecurringMemberago:FundInvestmentsMember2020-12-310001273813us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMemberago:FundInvestmentsMember2020-12-310001273813us-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMemberago:FundInvestmentsMember2020-12-310001273813us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMemberago:FundInvestmentsMember2020-12-310001273813us-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMemberago:FundInvestmentsMember2020-12-310001273813us-gaap:FairValueInputsLevel1Memberago:StructuredProductsMemberus-gaap:FairValueMeasurementsRecurringMemberago:FundInvestmentsMember2020-12-310001273813us-gaap:FairValueInputsLevel2Memberago:StructuredProductsMemberus-gaap:FairValueMeasurementsRecurringMemberago:FundInvestmentsMember2020-12-310001273813us-gaap:FairValueInputsLevel3Memberago:StructuredProductsMemberus-gaap:FairValueMeasurementsRecurringMemberago:FundInvestmentsMember2020-12-310001273813ago:StructuredProductsMemberus-gaap:FairValueMeasurementsRecurringMemberago:FundInvestmentsMember2020-12-310001273813us-gaap:FairValueInputsLevel1Memberago:CLOInvestmentsMemberus-gaap:DebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310001273813ago:CLOInvestmentsMemberus-gaap:DebtSecuritiesMemberus-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMember2020-12-310001273813ago:CLOInvestmentsMemberus-gaap:FairValueInputsLevel3Memberus-gaap:DebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310001273813ago:CLOInvestmentsMemberus-gaap:DebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310001273813us-gaap:FairValueInputsLevel1Memberago:CLOInvestmentsMemberus-gaap:ShortTermInvestmentsMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310001273813ago:CLOInvestmentsMemberus-gaap:FairValueInputsLevel2Memberus-gaap:ShortTermInvestmentsMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310001273813ago:CLOInvestmentsMemberus-gaap:FairValueInputsLevel3Memberus-gaap:ShortTermInvestmentsMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310001273813ago:CLOInvestmentsMemberus-gaap:ShortTermInvestmentsMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310001273813us-gaap:FairValueInputsLevel1Memberago:CollateralizedLoanObligationsofCFEAtFairValueMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310001273813ago:CollateralizedLoanObligationsofCFEAtFairValueMemberus-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMember2020-12-310001273813us-gaap:FairValueInputsLevel3Memberago:CollateralizedLoanObligationsofCFEAtFairValueMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310001273813ago:CollateralizedLoanObligationsofCFEAtFairValueMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310001273813us-gaap:FairValueInputsLevel1Memberago:BankDebtOfCollateralizedLoanObligationWarehousesMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310001273813us-gaap:FairValueInputsLevel2Memberago:BankDebtOfCollateralizedLoanObligationWarehousesMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310001273813us-gaap:FairValueInputsLevel3Memberago:BankDebtOfCollateralizedLoanObligationWarehousesMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310001273813ago:BankDebtOfCollateralizedLoanObligationWarehousesMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310001273813us-gaap:FairValueInputsLevel1Memberago:SecuritiesSoldShortMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310001273813us-gaap:FairValueInputsLevel2Memberago:SecuritiesSoldShortMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310001273813us-gaap:FairValueInputsLevel3Memberago:SecuritiesSoldShortMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310001273813ago:SecuritiesSoldShortMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310001273813us-gaap:FairValueMeasuredAtNetAssetValuePerShareMember2021-12-310001273813us-gaap:FairValueMeasuredAtNetAssetValuePerShareMember2020-12-310001273813us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberago:EquitySecuritiesandWarrantsMemberago:FundInvestmentsMember2021-12-310001273813us-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberago:EquitySecuritiesandWarrantsMemberago:FundInvestmentsMember2020-12-310001273813us-gaap:FixedMaturitiesMemberus-gaap:USStatesAndPoliticalSubdivisionsMember2020-12-310001273813us-gaap:FixedMaturitiesMemberus-gaap:CorporateDebtSecuritiesMember2020-12-310001273813us-gaap:FixedMaturitiesMemberus-gaap:ResidentialMortgageBackedSecuritiesMember2020-12-310001273813us-gaap:AssetBackedSecuritiesMemberus-gaap:FixedMaturitiesMember2020-12-310001273813ago:VariableInterestEntityAssetsMember2020-12-310001273813ago:AssetsofConsolidatedInvestmentVehiclesMemberago:EquitySecuritiesandWarrantsMember2020-12-310001273813ago:AssetsofConsolidatedInvestmentVehiclesMemberus-gaap:CorporateDebtSecuritiesMember2020-12-310001273813ago:OtherAssetsandOtherInvestedAssetsMember2020-12-310001273813us-gaap:FixedMaturitiesMemberus-gaap:USStatesAndPoliticalSubdivisionsMember2021-01-012021-12-310001273813us-gaap:FixedMaturitiesMemberus-gaap:CorporateDebtSecuritiesMember2021-01-012021-12-310001273813us-gaap:FixedMaturitiesMemberus-gaap:ResidentialMortgageBackedSecuritiesMember2021-01-012021-12-310001273813us-gaap:AssetBackedSecuritiesMemberus-gaap:FixedMaturitiesMember2021-01-012021-12-310001273813ago:VariableInterestEntityAssetsMember2021-01-012021-12-310001273813ago:AssetsofConsolidatedInvestmentVehiclesMemberago:EquitySecuritiesandWarrantsMember2021-01-012021-12-310001273813ago:AssetsofConsolidatedInvestmentVehiclesMemberus-gaap:CorporateDebtSecuritiesMember2021-01-012021-12-310001273813ago:OtherAssetsandOtherInvestedAssetsMember2021-01-012021-12-310001273813us-gaap:FixedMaturitiesMemberus-gaap:USStatesAndPoliticalSubdivisionsMember2021-12-310001273813us-gaap:FixedMaturitiesMemberus-gaap:CorporateDebtSecuritiesMember2021-12-310001273813us-gaap:FixedMaturitiesMemberus-gaap:ResidentialMortgageBackedSecuritiesMember2021-12-310001273813us-gaap:AssetBackedSecuritiesMemberus-gaap:FixedMaturitiesMember2021-12-310001273813ago:VariableInterestEntityAssetsMember2021-12-310001273813ago:AssetsofConsolidatedInvestmentVehiclesMemberago:EquitySecuritiesandWarrantsMember2021-12-310001273813ago:AssetsofConsolidatedInvestmentVehiclesMemberus-gaap:CorporateDebtSecuritiesMember2021-12-310001273813ago:OtherAssetsandOtherInvestedAssetsMember2021-12-310001273813us-gaap:FixedMaturitiesMemberus-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:OtherComprehensiveIncomeMember2021-01-012021-12-310001273813us-gaap:FixedMaturitiesMemberus-gaap:OtherComprehensiveIncomeMemberus-gaap:CorporateDebtSecuritiesMember2021-01-012021-12-310001273813us-gaap:FixedMaturitiesMemberus-gaap:OtherComprehensiveIncomeMemberus-gaap:ResidentialMortgageBackedSecuritiesMember2021-01-012021-12-310001273813us-gaap:AssetBackedSecuritiesMemberus-gaap:FixedMaturitiesMemberus-gaap:OtherComprehensiveIncomeMember2021-01-012021-12-310001273813ago:OtherAssetsandOtherInvestedAssetsMemberus-gaap:OtherComprehensiveIncomeMember2021-01-012021-12-310001273813us-gaap:CreditRiskContractMember2020-12-310001273813ago:VariableInterestLiabilitiesMember2020-12-310001273813ago:LiabilitiesofConsolidatedInvestmentVehiclesMember2020-12-310001273813us-gaap:CreditRiskContractMember2021-01-012021-12-310001273813ago:VariableInterestLiabilitiesMember2021-01-012021-12-310001273813ago:LiabilitiesofConsolidatedInvestmentVehiclesMember2021-01-012021-12-310001273813us-gaap:CreditRiskContractMember2021-12-310001273813ago:VariableInterestLiabilitiesMember2021-12-310001273813ago:LiabilitiesofConsolidatedInvestmentVehiclesMember2021-12-310001273813ago:VariableInterestLiabilitiesMemberus-gaap:OtherComprehensiveIncomeMember2021-01-012021-12-310001273813us-gaap:FixedMaturitiesMemberus-gaap:USStatesAndPoliticalSubdivisionsMember2019-12-310001273813us-gaap:FixedMaturitiesMemberus-gaap:CorporateDebtSecuritiesMember2019-12-310001273813us-gaap:FixedMaturitiesMemberus-gaap:ResidentialMortgageBackedSecuritiesMember2019-12-310001273813us-gaap:AssetBackedSecuritiesMemberus-gaap:FixedMaturitiesMember2019-12-310001273813ago:VariableInterestEntityAssetsMember2019-12-310001273813ago:AssetsofConsolidatedInvestmentVehiclesMemberago:EquitySecuritiesandWarrantsMember2019-12-310001273813ago:AssetsofConsolidatedInvestmentVehiclesMemberus-gaap:CorporateDebtSecuritiesMember2019-12-310001273813ago:AssetsofConsolidatedInvestmentVehiclesMemberago:StructuredProductsMember2019-12-310001273813ago:OtherAssetsandOtherInvestedAssetsMember2019-12-310001273813us-gaap:FixedMaturitiesMemberus-gaap:USStatesAndPoliticalSubdivisionsMember2020-01-012020-12-310001273813us-gaap:FixedMaturitiesMemberus-gaap:CorporateDebtSecuritiesMember2020-01-012020-12-310001273813us-gaap:FixedMaturitiesMemberus-gaap:ResidentialMortgageBackedSecuritiesMember2020-01-012020-12-310001273813us-gaap:AssetBackedSecuritiesMemberus-gaap:FixedMaturitiesMember2020-01-012020-12-310001273813ago:VariableInterestEntityAssetsMember2020-01-012020-12-310001273813ago:AssetsofConsolidatedInvestmentVehiclesMemberago:EquitySecuritiesandWarrantsMember2020-01-012020-12-310001273813ago:AssetsofConsolidatedInvestmentVehiclesMemberus-gaap:CorporateDebtSecuritiesMember2020-01-012020-12-310001273813ago:AssetsofConsolidatedInvestmentVehiclesMemberago:StructuredProductsMember2020-01-012020-12-310001273813ago:OtherAssetsandOtherInvestedAssetsMember2020-01-012020-12-310001273813ago:AssetsofConsolidatedInvestmentVehiclesMemberago:StructuredProductsMember2020-12-310001273813us-gaap:FixedMaturitiesMemberus-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:OtherComprehensiveIncomeMember2020-01-012020-12-310001273813us-gaap:FixedMaturitiesMemberus-gaap:OtherComprehensiveIncomeMemberus-gaap:CorporateDebtSecuritiesMember2020-01-012020-12-310001273813us-gaap:FixedMaturitiesMemberus-gaap:OtherComprehensiveIncomeMemberus-gaap:ResidentialMortgageBackedSecuritiesMember2020-01-012020-12-310001273813us-gaap:AssetBackedSecuritiesMemberus-gaap:FixedMaturitiesMemberus-gaap:OtherComprehensiveIncomeMember2020-01-012020-12-310001273813us-gaap:CreditRiskContractMember2019-12-310001273813ago:VariableInterestLiabilitiesMember2019-12-310001273813ago:LiabilitiesofConsolidatedInvestmentVehiclesMember2019-12-310001273813us-gaap:CreditRiskContractMember2020-01-012020-12-310001273813ago:VariableInterestLiabilitiesMember2020-01-012020-12-310001273813ago:LiabilitiesofConsolidatedInvestmentVehiclesMember2020-01-012020-12-310001273813ago:VariableInterestLiabilitiesMemberus-gaap:OtherComprehensiveIncomeMember2020-01-012020-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:FairValueInputsLevel3Memberus-gaap:USStatesAndPoliticalSubdivisionsMember2021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MinimumMemberus-gaap:FairValueInputsLevel3Memberus-gaap:USStatesAndPoliticalSubdivisionsMember2021-01-012021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MaximumMemberus-gaap:FairValueInputsLevel3Memberus-gaap:USStatesAndPoliticalSubdivisionsMember2021-01-012021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Memberus-gaap:USStatesAndPoliticalSubdivisionsMember2021-01-012021-12-310001273813us-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:FairValueInputsLevel3Member2021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MinimumMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:MeasurementInputPrepaymentRateMemberus-gaap:FairValueInputsLevel3Member2021-01-012021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:ResidentialMortgageBackedSecuritiesMembersrt:MaximumMemberus-gaap:MeasurementInputPrepaymentRateMemberus-gaap:FairValueInputsLevel3Member2021-01-012021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:ResidentialMortgageBackedSecuritiesMembersrt:WeightedAverageMemberus-gaap:MeasurementInputPrepaymentRateMemberus-gaap:FairValueInputsLevel3Member2021-01-012021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MinimumMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:MeasurementInputDefaultRateMemberus-gaap:FairValueInputsLevel3Member2021-01-012021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:ResidentialMortgageBackedSecuritiesMembersrt:MaximumMemberus-gaap:MeasurementInputDefaultRateMemberus-gaap:FairValueInputsLevel3Member2021-01-012021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:ResidentialMortgageBackedSecuritiesMembersrt:WeightedAverageMemberus-gaap:MeasurementInputDefaultRateMemberus-gaap:FairValueInputsLevel3Member2021-01-012021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MinimumMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:MeasurementInputLossSeverityMemberus-gaap:FairValueInputsLevel3Member2021-01-012021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:MeasurementInputLossSeverityMembersrt:MaximumMemberus-gaap:FairValueInputsLevel3Member2021-01-012021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:ResidentialMortgageBackedSecuritiesMembersrt:WeightedAverageMemberus-gaap:MeasurementInputLossSeverityMemberus-gaap:FairValueInputsLevel3Member2021-01-012021-12-310001273813us-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:IncomeApproachValuationTechniqueMembersrt:MinimumMemberus-gaap:FairValueInputsLevel3Member2021-01-012021-12-310001273813us-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:IncomeApproachValuationTechniqueMembersrt:MaximumMemberus-gaap:FairValueInputsLevel3Member2021-01-012021-12-310001273813us-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:IncomeApproachValuationTechniqueMembersrt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Member2021-01-012021-12-310001273813ago:LifeInsuranceTransactionMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:FairValueInputsLevel3Member2021-12-310001273813ago:LifeInsuranceTransactionMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:FairValueInputsLevel3Member2021-01-012021-12-310001273813us-gaap:CollateralizedLoanObligationsMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:FairValueInputsLevel3Member2021-12-310001273813us-gaap:CollateralizedLoanObligationsMemberus-gaap:IncomeApproachValuationTechniqueMembersrt:MinimumMemberus-gaap:MeasurementInputDiscountRateMemberus-gaap:FairValueInputsLevel3Member2021-01-012021-12-310001273813us-gaap:CollateralizedLoanObligationsMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:MeasurementInputDiscountRateMembersrt:MaximumMemberus-gaap:FairValueInputsLevel3Member2021-01-012021-12-310001273813us-gaap:CollateralizedLoanObligationsMemberus-gaap:IncomeApproachValuationTechniqueMembersrt:WeightedAverageMemberus-gaap:MeasurementInputDiscountRateMemberus-gaap:FairValueInputsLevel3Member2021-01-012021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:FairValueInputsLevel3Memberago:OtherAssetBackedSecuritiesMember2021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MinimumMemberus-gaap:FairValueInputsLevel3Memberago:OtherAssetBackedSecuritiesMember2021-01-012021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MaximumMemberus-gaap:FairValueInputsLevel3Memberago:OtherAssetBackedSecuritiesMember2021-01-012021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Memberago:OtherAssetBackedSecuritiesMember2021-01-012021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:FairValueInputsLevel3Memberago:FinancialGuaranteeVariableInterestEntitiesMember2021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MinimumMemberus-gaap:MeasurementInputPrepaymentRateMemberus-gaap:FairValueInputsLevel3Memberago:FinancialGuaranteeVariableInterestEntitiesMember2021-01-012021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MaximumMemberus-gaap:MeasurementInputPrepaymentRateMemberus-gaap:FairValueInputsLevel3Memberago:FinancialGuaranteeVariableInterestEntitiesMember2021-01-012021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:WeightedAverageMemberus-gaap:MeasurementInputPrepaymentRateMemberus-gaap:FairValueInputsLevel3Memberago:FinancialGuaranteeVariableInterestEntitiesMember2021-01-012021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MinimumMemberus-gaap:MeasurementInputDefaultRateMemberus-gaap:FairValueInputsLevel3Memberago:FinancialGuaranteeVariableInterestEntitiesMember2021-01-012021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MaximumMemberus-gaap:MeasurementInputDefaultRateMemberus-gaap:FairValueInputsLevel3Memberago:FinancialGuaranteeVariableInterestEntitiesMember2021-01-012021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:WeightedAverageMemberus-gaap:MeasurementInputDefaultRateMemberus-gaap:FairValueInputsLevel3Memberago:FinancialGuaranteeVariableInterestEntitiesMember2021-01-012021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MinimumMemberus-gaap:MeasurementInputLossSeverityMemberus-gaap:FairValueInputsLevel3Memberago:FinancialGuaranteeVariableInterestEntitiesMember2021-01-012021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:MeasurementInputLossSeverityMembersrt:MaximumMemberus-gaap:FairValueInputsLevel3Memberago:FinancialGuaranteeVariableInterestEntitiesMember2021-01-012021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:WeightedAverageMemberus-gaap:MeasurementInputLossSeverityMemberus-gaap:FairValueInputsLevel3Memberago:FinancialGuaranteeVariableInterestEntitiesMember2021-01-012021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MinimumMemberus-gaap:FairValueInputsLevel3Memberago:FinancialGuaranteeVariableInterestEntitiesMember2021-01-012021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MaximumMemberus-gaap:FairValueInputsLevel3Memberago:FinancialGuaranteeVariableInterestEntitiesMember2021-01-012021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Memberago:FinancialGuaranteeVariableInterestEntitiesMember2021-01-012021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberago:EquitySecuritiesandWarrantsMemberus-gaap:FairValueInputsLevel3Memberago:AssetsofConsolidatedInvestmentVehiclesMember2021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberago:EquitySecuritiesandWarrantsMemberus-gaap:FairValueInputsLevel3Memberago:AssetsofConsolidatedInvestmentVehiclesMember2021-01-012021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MinimumMemberus-gaap:MeasurementInputDiscountRateMemberago:EquitySecuritiesandWarrantsMemberus-gaap:FairValueInputsLevel3Memberago:AssetsofConsolidatedInvestmentVehiclesMember2021-01-012021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:MeasurementInputDiscountRateMembersrt:MaximumMemberago:EquitySecuritiesandWarrantsMemberus-gaap:FairValueInputsLevel3Memberago:AssetsofConsolidatedInvestmentVehiclesMember2021-01-012021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:WeightedAverageMemberus-gaap:MeasurementInputDiscountRateMemberago:EquitySecuritiesandWarrantsMemberus-gaap:FairValueInputsLevel3Memberago:AssetsofConsolidatedInvestmentVehiclesMember2021-01-012021-12-310001273813ago:AssetsofConsolidatedInvestmentVehiclesMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:MeasurementInputDiscountRateMemberus-gaap:FairValueInputsLevel3Member2021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MinimumMemberus-gaap:MeasurementInputDiscountRateMemberus-gaap:CorporateDebtSecuritiesMemberus-gaap:FairValueInputsLevel3Member2021-01-012021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:MeasurementInputDiscountRateMembersrt:MaximumMemberus-gaap:CorporateDebtSecuritiesMemberus-gaap:FairValueInputsLevel3Member2021-01-012021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:WeightedAverageMemberus-gaap:MeasurementInputDiscountRateMemberus-gaap:CorporateDebtSecuritiesMemberus-gaap:FairValueInputsLevel3Member2021-01-012021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:CorporateDebtSecuritiesMemberus-gaap:FairValueInputsLevel3Memberago:AssetsofConsolidatedInvestmentVehiclesMember2021-01-012021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:FairValueInputsLevel3Memberus-gaap:OtherAssetsMember2021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MinimumMemberus-gaap:FairValueInputsLevel3Memberus-gaap:OtherAssetsMember2021-01-012021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MaximumMemberus-gaap:FairValueInputsLevel3Memberus-gaap:OtherAssetsMember2021-01-012021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Memberus-gaap:OtherAssetsMember2021-01-012021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:FairValueInputsLevel3Memberus-gaap:OtherAssetsMember2021-01-012021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMemberus-gaap:FairValueInputsLevel3Member2021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MinimumMemberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMemberus-gaap:FairValueInputsLevel3Member2021-01-012021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMembersrt:MaximumMemberus-gaap:FairValueInputsLevel3Member2021-01-012021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMembersrt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Member2021-01-012021-12-310001273813srt:MinimumMemberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMemberus-gaap:FairValueInputsLevel3Member2021-01-012021-12-310001273813us-gaap:DerivativeFinancialInstrumentsLiabilitiesMembersrt:MaximumMemberus-gaap:FairValueInputsLevel3Member2021-01-012021-12-310001273813us-gaap:DerivativeFinancialInstrumentsLiabilitiesMembersrt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Member2021-01-012021-12-310001273813us-gaap:DerivativeFinancialInstrumentsLiabilitiesMemberus-gaap:FairValueInputsLevel3Member2021-01-012021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:FairValueInputsLevel3Memberago:FinancialGuaranteeVariableInterestEntitiesMember2021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MinimumMemberus-gaap:MeasurementInputPrepaymentRateMemberus-gaap:FairValueInputsLevel3Memberago:FinancialGuaranteeVariableInterestEntitiesMember2021-01-012021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MaximumMemberus-gaap:MeasurementInputPrepaymentRateMemberus-gaap:FairValueInputsLevel3Memberago:FinancialGuaranteeVariableInterestEntitiesMember2021-01-012021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:WeightedAverageMemberus-gaap:MeasurementInputPrepaymentRateMemberus-gaap:FairValueInputsLevel3Memberago:FinancialGuaranteeVariableInterestEntitiesMember2021-01-012021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MinimumMemberus-gaap:MeasurementInputDefaultRateMemberus-gaap:FairValueInputsLevel3Memberago:FinancialGuaranteeVariableInterestEntitiesMember2021-01-012021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MaximumMemberus-gaap:MeasurementInputDefaultRateMemberus-gaap:FairValueInputsLevel3Memberago:FinancialGuaranteeVariableInterestEntitiesMember2021-01-012021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:WeightedAverageMemberus-gaap:MeasurementInputDefaultRateMemberus-gaap:FairValueInputsLevel3Memberago:FinancialGuaranteeVariableInterestEntitiesMember2021-01-012021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MinimumMemberus-gaap:MeasurementInputLossSeverityMemberus-gaap:FairValueInputsLevel3Memberago:FinancialGuaranteeVariableInterestEntitiesMember2021-01-012021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:MeasurementInputLossSeverityMembersrt:MaximumMemberus-gaap:FairValueInputsLevel3Memberago:FinancialGuaranteeVariableInterestEntitiesMember2021-01-012021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:WeightedAverageMemberus-gaap:MeasurementInputLossSeverityMemberus-gaap:FairValueInputsLevel3Memberago:FinancialGuaranteeVariableInterestEntitiesMember2021-01-012021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MinimumMemberus-gaap:FairValueInputsLevel3Memberago:FinancialGuaranteeVariableInterestEntitiesMember2021-01-012021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MaximumMemberus-gaap:FairValueInputsLevel3Memberago:FinancialGuaranteeVariableInterestEntitiesMember2021-01-012021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Memberago:FinancialGuaranteeVariableInterestEntitiesMember2021-01-012021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:CollateralizedLoanObligationsMemberus-gaap:FairValueInputsLevel3Member2021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MinimumMemberus-gaap:CollateralizedLoanObligationsMemberus-gaap:FairValueInputsLevel3Member2021-01-012021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:CollateralizedLoanObligationsMembersrt:MaximumMemberus-gaap:FairValueInputsLevel3Member2021-01-012021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:CollateralizedLoanObligationsMembersrt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Member2021-01-012021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:FairValueInputsLevel3Memberago:WarehouseFinancingDebtMember2021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MinimumMemberus-gaap:FairValueInputsLevel3Memberago:WarehouseFinancingDebtMember2021-01-012021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MaximumMemberus-gaap:FairValueInputsLevel3Memberago:WarehouseFinancingDebtMember2021-01-012021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Memberago:WarehouseFinancingDebtMember2021-01-012021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:BorrowingsMemberus-gaap:FairValueInputsLevel3Member2021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:MeasurementInputDiscountRateMemberus-gaap:BorrowingsMemberus-gaap:FairValueInputsLevel3Member2021-01-012021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:FairValueInputsLevel3Memberago:OtherInvestedAssetsMember2021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:FairValueInputsLevel3Memberus-gaap:USStatesAndPoliticalSubdivisionsMember2020-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MinimumMemberus-gaap:FairValueInputsLevel3Memberus-gaap:USStatesAndPoliticalSubdivisionsMember2020-01-012020-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MaximumMemberus-gaap:FairValueInputsLevel3Memberus-gaap:USStatesAndPoliticalSubdivisionsMember2020-01-012020-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Memberus-gaap:USStatesAndPoliticalSubdivisionsMember2020-01-012020-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:CorporateDebtSecuritiesMemberus-gaap:FairValueInputsLevel3Member2020-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:CorporateDebtSecuritiesMemberus-gaap:FairValueInputsLevel3Member2020-01-012020-12-310001273813us-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:FairValueInputsLevel3Member2020-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MinimumMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:MeasurementInputPrepaymentRateMemberus-gaap:FairValueInputsLevel3Member2020-01-012020-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:ResidentialMortgageBackedSecuritiesMembersrt:MaximumMemberus-gaap:MeasurementInputPrepaymentRateMemberus-gaap:FairValueInputsLevel3Member2020-01-012020-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:ResidentialMortgageBackedSecuritiesMembersrt:WeightedAverageMemberus-gaap:MeasurementInputPrepaymentRateMemberus-gaap:FairValueInputsLevel3Member2020-01-012020-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MinimumMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:MeasurementInputDefaultRateMemberus-gaap:FairValueInputsLevel3Member2020-01-012020-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:ResidentialMortgageBackedSecuritiesMembersrt:MaximumMemberus-gaap:MeasurementInputDefaultRateMemberus-gaap:FairValueInputsLevel3Member2020-01-012020-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:ResidentialMortgageBackedSecuritiesMembersrt:WeightedAverageMemberus-gaap:MeasurementInputDefaultRateMemberus-gaap:FairValueInputsLevel3Member2020-01-012020-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MinimumMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:MeasurementInputLossSeverityMemberus-gaap:FairValueInputsLevel3Member2020-01-012020-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:MeasurementInputLossSeverityMembersrt:MaximumMemberus-gaap:FairValueInputsLevel3Member2020-01-012020-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:ResidentialMortgageBackedSecuritiesMembersrt:WeightedAverageMemberus-gaap:MeasurementInputLossSeverityMemberus-gaap:FairValueInputsLevel3Member2020-01-012020-12-310001273813us-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:IncomeApproachValuationTechniqueMembersrt:MinimumMemberus-gaap:FairValueInputsLevel3Member2020-01-012020-12-310001273813us-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:IncomeApproachValuationTechniqueMembersrt:MaximumMemberus-gaap:FairValueInputsLevel3Member2020-01-012020-12-310001273813us-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:IncomeApproachValuationTechniqueMembersrt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Member2020-01-012020-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:FairValueInputsLevel3Memberago:TripleXLifeInsuranceTransactionMember2020-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MinimumMemberus-gaap:FairValueInputsLevel3Memberago:TripleXLifeInsuranceTransactionMember2020-01-012020-12-310001273813us-gaap:CollateralizedLoanObligationsMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:FairValueInputsLevel3Member2020-12-310001273813us-gaap:CollateralizedLoanObligationsMemberus-gaap:IncomeApproachValuationTechniqueMembersrt:MinimumMemberus-gaap:MeasurementInputDiscountRateMemberus-gaap:FairValueInputsLevel3Member2020-01-012020-12-310001273813us-gaap:CollateralizedLoanObligationsMemberus-gaap:IncomeApproachValuationTechniqueMemberus-gaap:MeasurementInputDiscountRateMembersrt:MaximumMemberus-gaap:FairValueInputsLevel3Member2020-01-012020-12-310001273813us-gaap:CollateralizedLoanObligationsMemberus-gaap:IncomeApproachValuationTechniqueMembersrt:WeightedAverageMemberus-gaap:MeasurementInputDiscountRateMemberus-gaap:FairValueInputsLevel3Member2020-01-012020-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:FairValueInputsLevel3Memberago:OtherAssetBackedSecuritiesMember2020-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MinimumMemberus-gaap:FairValueInputsLevel3Memberago:OtherAssetBackedSecuritiesMember2020-01-012020-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MaximumMemberus-gaap:FairValueInputsLevel3Memberago:OtherAssetBackedSecuritiesMember2020-01-012020-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Memberago:OtherAssetBackedSecuritiesMember2020-01-012020-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:FairValueInputsLevel3Memberago:FinancialGuaranteeVariableInterestEntitiesMember2020-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MinimumMemberus-gaap:MeasurementInputPrepaymentRateMemberus-gaap:FairValueInputsLevel3Memberago:FinancialGuaranteeVariableInterestEntitiesMember2020-01-012020-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MaximumMemberus-gaap:MeasurementInputPrepaymentRateMemberus-gaap:FairValueInputsLevel3Memberago:FinancialGuaranteeVariableInterestEntitiesMember2020-01-012020-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:WeightedAverageMemberus-gaap:MeasurementInputPrepaymentRateMemberus-gaap:FairValueInputsLevel3Memberago:FinancialGuaranteeVariableInterestEntitiesMember2020-01-012020-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MinimumMemberus-gaap:MeasurementInputDefaultRateMemberus-gaap:FairValueInputsLevel3Memberago:FinancialGuaranteeVariableInterestEntitiesMember2020-01-012020-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MaximumMemberus-gaap:MeasurementInputDefaultRateMemberus-gaap:FairValueInputsLevel3Memberago:FinancialGuaranteeVariableInterestEntitiesMember2020-01-012020-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:WeightedAverageMemberus-gaap:MeasurementInputDefaultRateMemberus-gaap:FairValueInputsLevel3Memberago:FinancialGuaranteeVariableInterestEntitiesMember2020-01-012020-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MinimumMemberus-gaap:MeasurementInputLossSeverityMemberus-gaap:FairValueInputsLevel3Memberago:FinancialGuaranteeVariableInterestEntitiesMember2020-01-012020-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:MeasurementInputLossSeverityMembersrt:MaximumMemberus-gaap:FairValueInputsLevel3Memberago:FinancialGuaranteeVariableInterestEntitiesMember2020-01-012020-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:WeightedAverageMemberus-gaap:MeasurementInputLossSeverityMemberus-gaap:FairValueInputsLevel3Memberago:FinancialGuaranteeVariableInterestEntitiesMember2020-01-012020-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MinimumMemberus-gaap:FairValueInputsLevel3Memberago:FinancialGuaranteeVariableInterestEntitiesMember2020-01-012020-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MaximumMemberus-gaap:FairValueInputsLevel3Memberago:FinancialGuaranteeVariableInterestEntitiesMember2020-01-012020-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Memberago:FinancialGuaranteeVariableInterestEntitiesMember2020-01-012020-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberago:EquitySecuritiesandWarrantsMemberus-gaap:FairValueInputsLevel3Memberago:AssetsofConsolidatedInvestmentVehiclesMember2020-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberago:EquitySecuritiesandWarrantsMemberus-gaap:FairValueInputsLevel3Memberago:AssetsofConsolidatedInvestmentVehiclesMember2020-01-012020-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:FairValueInputsLevel3Memberus-gaap:OtherAssetsMember2020-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MinimumMemberus-gaap:FairValueInputsLevel3Memberus-gaap:OtherAssetsMember2020-01-012020-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MaximumMemberus-gaap:FairValueInputsLevel3Memberus-gaap:OtherAssetsMember2020-01-012020-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Memberus-gaap:OtherAssetsMember2020-01-012020-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:FairValueInputsLevel3Memberus-gaap:OtherAssetsMember2020-01-012020-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMemberus-gaap:FairValueInputsLevel3Member2020-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MinimumMemberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMemberus-gaap:FairValueInputsLevel3Member2020-01-012020-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMembersrt:MaximumMemberus-gaap:FairValueInputsLevel3Member2020-01-012020-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMembersrt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Member2020-01-012020-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:FairValueInputsLevel3Memberago:FinancialGuaranteeVariableInterestEntitiesMember2020-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MinimumMemberus-gaap:MeasurementInputPrepaymentRateMemberus-gaap:FairValueInputsLevel3Memberago:FinancialGuaranteeVariableInterestEntitiesMember2020-01-012020-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MaximumMemberus-gaap:MeasurementInputPrepaymentRateMemberus-gaap:FairValueInputsLevel3Memberago:FinancialGuaranteeVariableInterestEntitiesMember2020-01-012020-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:WeightedAverageMemberus-gaap:MeasurementInputPrepaymentRateMemberus-gaap:FairValueInputsLevel3Memberago:FinancialGuaranteeVariableInterestEntitiesMember2020-01-012020-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MinimumMemberus-gaap:MeasurementInputDefaultRateMemberus-gaap:FairValueInputsLevel3Memberago:FinancialGuaranteeVariableInterestEntitiesMember2020-01-012020-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MaximumMemberus-gaap:MeasurementInputDefaultRateMemberus-gaap:FairValueInputsLevel3Memberago:FinancialGuaranteeVariableInterestEntitiesMember2020-01-012020-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:WeightedAverageMemberus-gaap:MeasurementInputDefaultRateMemberus-gaap:FairValueInputsLevel3Memberago:FinancialGuaranteeVariableInterestEntitiesMember2020-01-012020-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MinimumMemberus-gaap:MeasurementInputLossSeverityMemberus-gaap:FairValueInputsLevel3Memberago:FinancialGuaranteeVariableInterestEntitiesMember2020-01-012020-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:MeasurementInputLossSeverityMembersrt:MaximumMemberus-gaap:FairValueInputsLevel3Memberago:FinancialGuaranteeVariableInterestEntitiesMember2020-01-012020-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:WeightedAverageMemberus-gaap:MeasurementInputLossSeverityMemberus-gaap:FairValueInputsLevel3Memberago:FinancialGuaranteeVariableInterestEntitiesMember2020-01-012020-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MinimumMemberus-gaap:FairValueInputsLevel3Memberago:FinancialGuaranteeVariableInterestEntitiesMember2020-01-012020-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MaximumMemberus-gaap:FairValueInputsLevel3Memberago:FinancialGuaranteeVariableInterestEntitiesMember2020-01-012020-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Memberago:FinancialGuaranteeVariableInterestEntitiesMember2020-01-012020-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:CollateralizedLoanObligationsMemberus-gaap:FairValueInputsLevel3Member2020-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MinimumMemberus-gaap:FairValueInputsLevel3Memberago:LiabilitiesofConsolidatedInvestmentVehiclesMember2020-01-012020-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MaximumMemberus-gaap:FairValueInputsLevel3Memberago:LiabilitiesofConsolidatedInvestmentVehiclesMember2020-01-012020-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Memberago:LiabilitiesofConsolidatedInvestmentVehiclesMember2020-01-012020-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:FairValueInputsLevel3Memberago:OtherInvestedAssetsMember2020-12-310001273813ago:AssuredIMMember2021-01-012021-12-310001273813us-gaap:CarryingReportedAmountFairValueDisclosureMemberago:ConsolidatedInvestmentVehiclesMember2021-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:EstimateOfFairValueFairValueDisclosureMember2021-12-310001273813us-gaap:CarryingReportedAmountFairValueDisclosureMemberago:ConsolidatedInvestmentVehiclesMember2020-12-310001273813ago:ConsolidatedInvestmentVehiclesMemberus-gaap:EstimateOfFairValueFairValueDisclosureMember2020-12-310001273813us-gaap:CarryingReportedAmountFairValueDisclosureMember2021-12-310001273813us-gaap:EstimateOfFairValueFairValueDisclosureMember2021-12-310001273813us-gaap:CarryingReportedAmountFairValueDisclosureMember2020-12-310001273813us-gaap:EstimateOfFairValueFairValueDisclosureMember2020-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MinimumMemberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMember2021-01-012021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMembersrt:MaximumMember2021-01-012021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMembersrt:WeightedAverageMember2021-01-012021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMember2021-01-012021-12-310001273813ago:AssetsofConsolidatedInvestmentVehiclesMemberus-gaap:MeasurementInputRevenueMultipleMemberus-gaap:FairValueInputsLevel3Memberus-gaap:MarketApproachValuationTechniqueMember2021-01-012021-12-310001273813ago:AssetsofConsolidatedInvestmentVehiclesMembersrt:MinimumMemberus-gaap:FairValueInputsLevel3Memberus-gaap:MeasurementInputEbitdaMultipleMemberus-gaap:MarketApproachValuationTechniqueMember2021-01-012021-12-310001273813ago:AssetsofConsolidatedInvestmentVehiclesMembersrt:MaximumMemberus-gaap:FairValueInputsLevel3Memberus-gaap:MeasurementInputEbitdaMultipleMemberus-gaap:MarketApproachValuationTechniqueMember2021-01-012021-12-310001273813ago:AssetsofConsolidatedInvestmentVehiclesMembersrt:WeightedAverageMemberus-gaap:FairValueInputsLevel3Memberus-gaap:MeasurementInputEbitdaMultipleMemberus-gaap:MarketApproachValuationTechniqueMember2021-01-012021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:MeasurementInputRevenueMultipleMemberago:EquitySecuritiesandWarrantsMemberus-gaap:FairValueInputsLevel3Member2021-01-012021-12-310001273813us-gaap:MeasurementInputRevenueMultipleMemberus-gaap:FairValueInputsLevel3Memberago:LiabilitiesofConsolidatedInvestmentVehiclesMemberus-gaap:MarketApproachValuationTechniqueMember2021-01-012021-12-310001273813us-gaap:IncomeApproachValuationTechniqueMembersrt:MinimumMemberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMember2020-01-012020-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMembersrt:MaximumMember2020-01-012020-12-310001273813us-gaap:IncomeApproachValuationTechniqueMemberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMembersrt:WeightedAverageMember2020-01-012020-12-310001273813ago:AssetManagementFeesCLOsMembersrt:MaximumMember2021-01-012021-12-310001273813srt:MinimumMemberago:AssetManagementFeesCLOsMember2021-01-012021-12-310001273813ago:AssetManagementFeesCLOsMember2021-01-012021-12-310001273813ago:CollateralizedLoanObligationServiceMember2021-01-012021-12-310001273813ago:CollateralizedLoanObligationServiceMember2020-01-012020-12-310001273813ago:CollateralizedLoanObligationServiceMember2019-01-012019-12-310001273813ago:OpportunityFundsAndLiquidStrategiesMember2021-01-012021-12-310001273813ago:OpportunityFundsAndLiquidStrategiesMember2020-01-012020-12-310001273813ago:OpportunityFundsAndLiquidStrategiesMember2019-01-012019-12-310001273813ago:WinddownFundsMember2021-01-012021-12-310001273813ago:WinddownFundsMember2020-01-012020-12-310001273813ago:WinddownFundsMember2019-01-012019-12-310001273813ago:AssetManagementFeesCLOsMember2020-01-012020-12-310001273813ago:AssetManagementFeesCLOsMember2019-01-012019-12-310001273813ago:PerformanceAllocationFeesMember2021-01-012021-12-310001273813ago:PerformanceAllocationFeesMember2020-01-012020-12-310001273813ago:PerformanceAllocationFeesMember2019-01-012019-12-310001273813ago:ReimbursableFundExpenseMember2021-01-012021-12-310001273813ago:ReimbursableFundExpenseMember2020-01-012020-12-310001273813ago:ReimbursableFundExpenseMember2019-01-012019-12-310001273813ago:CollateralizedLoanObligationsBeforeRebatesMember2021-01-012021-12-310001273813ago:CollateralizedLoanObligationsBeforeRebatesMember2020-01-012020-12-310001273813ago:CollateralizedLoanObligationsBeforeRebatesMember2019-01-012019-12-310001273813ago:AssetManagementandPerformanceAllocationFeesMember2021-12-310001273813ago:AssetManagementandPerformanceAllocationFeesMember2020-12-310001273813ago:CLOContractsMember2021-01-012021-12-310001273813ago:CLOContractsMember2021-12-310001273813ago:CLOContractsMember2020-12-310001273813ago:InvestmentManagementContractsMember2021-01-012021-12-310001273813ago:InvestmentManagementContractsMember2021-12-310001273813ago:InvestmentManagementContractsMember2020-12-310001273813ago:CollateralizedLoanObligationsDistributionNetworkMember2021-01-012021-12-310001273813ago:CollateralizedLoanObligationsDistributionNetworkMember2021-12-310001273813ago:CollateralizedLoanObligationsDistributionNetworkMember2020-12-310001273813us-gaap:TradeNamesMember2021-01-012021-12-310001273813us-gaap:TradeNamesMember2021-12-310001273813us-gaap:TradeNamesMember2020-12-310001273813ago:FavorableSubleaseMember2021-01-012021-12-310001273813ago:FavorableSubleaseMember2021-12-310001273813ago:FavorableSubleaseMember2020-12-310001273813us-gaap:LeaseAgreementsMember2021-01-012021-12-310001273813us-gaap:LeaseAgreementsMember2021-12-310001273813us-gaap:LeaseAgreementsMember2020-12-310001273813ago:MunicipalAssuranceCorpMember2021-01-012021-03-310001273813us-gaap:SeniorNotesMemberago:SeniorNotes70PercentMemberago:AssuredGuarantyUSHoldingIncMember2021-12-310001273813us-gaap:SeniorNotesMemberago:SeniorNotes70PercentMemberago:AssuredGuarantyUSHoldingIncMember2020-12-310001273813us-gaap:SeniorNotesMemberago:AssuredGuarantyUSHoldingIncMemberago:SeniorNotes5.0PercentMember2021-12-310001273813us-gaap:SeniorNotesMemberago:AssuredGuarantyUSHoldingIncMemberago:SeniorNotes5.0PercentMember2020-12-310001273813ago:SeniorNotes315PercentMemberus-gaap:SeniorNotesMemberago:AssuredGuarantyUSHoldingIncMember2021-12-310001273813ago:SeniorNotes315PercentMemberus-gaap:SeniorNotesMemberago:AssuredGuarantyUSHoldingIncMember2020-12-310001273813ago:SeniorNotes36PercentMemberus-gaap:SeniorNotesMemberago:AssuredGuarantyUSHoldingIncMember2021-12-310001273813ago:SeniorNotes36PercentMemberus-gaap:SeniorNotesMemberago:AssuredGuarantyUSHoldingIncMember2020-12-310001273813ago:EnhancedJuniorSubordinatedDebenturesMemberago:AssuredGuarantyUSHoldingIncMember2021-12-310001273813ago:EnhancedJuniorSubordinatedDebenturesMemberago:AssuredGuarantyUSHoldingIncMember2020-12-310001273813ago:AssuredGuarantyMunicipalHoldingsIncMemberago:Quibs6875PercentMemberus-gaap:CorporateDebtSecuritiesMember2021-12-310001273813ago:AssuredGuarantyMunicipalHoldingsIncMemberago:Quibs6875PercentMemberus-gaap:CorporateDebtSecuritiesMember2020-12-310001273813us-gaap:NotesPayableOtherPayablesMemberago:AssuredGuarantyMunicipalHoldingsIncMemberago:NotesPayable625PercentMember2021-12-310001273813us-gaap:NotesPayableOtherPayablesMemberago:AssuredGuarantyMunicipalHoldingsIncMemberago:NotesPayable625PercentMember2020-12-310001273813us-gaap:NotesPayableOtherPayablesMemberago:AssuredGuarantyMunicipalHoldingsIncMemberago:NotesPayable560PercentMember2021-12-310001273813us-gaap:NotesPayableOtherPayablesMemberago:AssuredGuarantyMunicipalHoldingsIncMemberago:NotesPayable560PercentMember2020-12-310001273813us-gaap:JuniorSubordinatedDebtMemberago:AssuredGuarantyUSHoldingIncMember2021-12-310001273813us-gaap:JuniorSubordinatedDebtMemberago:AssuredGuarantyUSHoldingIncMember2020-12-310001273813us-gaap:NotesPayableOtherPayablesMemberago:AssuredGuarantyMunicipalCorpMember2021-12-310001273813us-gaap:NotesPayableOtherPayablesMemberago:AssuredGuarantyMunicipalCorpMember2020-12-310001273813ago:AssuredGuarantyMunicipalCorpMember2020-12-310001273813us-gaap:SeniorNotesMemberago:SeniorNotes70PercentMemberago:AssuredGuarantyUSHoldingIncMember2004-05-180001273813us-gaap:SeniorNotesMemberago:SeniorNotes70PercentMemberago:AssuredGuarantyUSHoldingIncMember2004-05-182004-05-180001273813us-gaap:SeniorNotesMemberago:AssuredGuarantyUSHoldingIncMemberago:SeniorNotes5.0PercentMember2014-06-200001273813us-gaap:SeniorNotesMemberago:AssuredGuarantyUSHoldingIncMemberago:SeniorNotes5.0PercentMember2014-06-202014-06-200001273813ago:SeniorNotes36PercentMemberus-gaap:SeniorNotesMemberago:AssuredGuarantyUSHoldingIncMember2021-08-200001273813us-gaap:SeniorNotesMemberago:AssuredGuarantyUSHoldingIncMemberago:SeniorNotes5.0PercentMember2021-09-272021-09-270001273813ago:SeniorNotes315PercentMemberus-gaap:SeniorNotesMemberago:AssuredGuarantyUSHoldingIncMember2021-05-260001273813ago:SeniorNotes315PercentMemberus-gaap:SeniorNotesMemberago:AssuredGuarantyUSHoldingIncMember2021-05-262021-05-260001273813ago:SeniorNotes315PercentMemberus-gaap:SeniorNotesMemberago:AssuredGuarantyUSHoldingIncMember2021-08-202021-08-200001273813ago:SeniorNotes315PercentMemberus-gaap:SeniorNotesMemberago:AssuredGuarantyUSHoldingIncMember2021-08-200001273813ago:SeniorNotes36PercentMemberus-gaap:SeniorNotesMemberago:AssuredGuarantyUSHoldingIncMember2021-08-202021-08-200001273813us-gaap:JuniorSubordinatedDebtMemberago:AssuredGuarantyUSHoldingIncMemberago:EnhancedJuniorSubordinatedDebenturesMember2006-12-200001273813us-gaap:JuniorSubordinatedDebtMemberago:AssuredGuarantyUSHoldingIncMemberago:EnhancedJuniorSubordinatedDebenturesMember2006-12-202006-12-20ago:period0001273813ago:AssuredGuarantyMunicipalHoldingsIncMemberago:Quibs6875PercentMemberus-gaap:CorporateDebtSecuritiesMember2001-12-190001273813ago:Quibs6875PercentMemberago:AssuredGuarantyUSHoldingIncMemberus-gaap:CorporateDebtSecuritiesMember2021-07-092021-07-090001273813us-gaap:NotesPayableOtherPayablesMemberago:AssuredGuarantyMunicipalHoldingsIncMemberago:NotesPayable625PercentMember2002-11-260001273813us-gaap:NotesPayableOtherPayablesMemberago:NotesPayable625PercentMemberago:AssuredGuarantyUSHoldingIncMember2021-07-092021-07-090001273813us-gaap:NotesPayableOtherPayablesMemberago:NotesPayable625PercentMemberago:AssuredGuarantyUSHoldingIncMember2021-09-272021-09-270001273813us-gaap:NotesPayableOtherPayablesMemberago:AssuredGuarantyMunicipalHoldingsIncMemberago:NotesPayable560PercentMember2003-07-310001273813ago:NotesPayable560PercentMemberago:AssuredGuarantyUSHoldingIncMemberus-gaap:CorporateDebtSecuritiesMember2021-09-272021-09-270001273813ago:AssuredGuarantyMunicipalHoldingsIncMemberus-gaap:JuniorSubordinatedDebtMember2006-11-22ago:extension0001273813ago:AssuredGuarantyMunicipalHoldingsIncMemberus-gaap:JuniorSubordinatedDebtMember2006-11-222006-11-22ago:rISK0001273813ago:AssuredGuarantyMunicipalHoldingsIncMemberus-gaap:JuniorSubordinatedDebtMemberago:EnhancedJuniorSubordinatedDebenturesMember2006-11-222006-11-220001273813ago:AssuredGuarantyMunicipalHoldingsIncMembersrt:SubsidiaryIssuerMember2020-12-310001273813ago:AssuredGuarantyMunicipalHoldingsIncMembersrt:SubsidiaryIssuerMember2021-12-310001273813ago:AssuredGuarantyUSHoldingIncMember2021-07-092021-07-090001273813us-gaap:NotesPayableOtherPayablesMemberago:NotesPayable625PercentMemberago:AssuredGuarantyUSHoldingIncMember2021-07-090001273813ago:SeniorNotes36PercentMemberus-gaap:SeniorNotesMemberago:AssuredGuarantyUSHoldingIncMember2021-09-272021-09-270001273813us-gaap:SeniorNotesMemberago:AssuredGuarantyUSHoldingIncMemberago:SeniorNotes5.0PercentMember2021-09-270001273813ago:AssuredGuarantyUSHoldingIncMember2021-01-012021-12-310001273813ago:SeniorNotes5.0PercentMember2021-01-012021-12-310001273813us-gaap:SeniorNotesMemberago:SeniorNotes70PercentMemberago:AssuredGuarantyUSHoldingIncMember2021-01-012021-12-310001273813us-gaap:SeniorNotesMemberago:SeniorNotes70PercentMemberago:AssuredGuarantyUSHoldingIncMember2020-01-012020-12-310001273813us-gaap:SeniorNotesMemberago:SeniorNotes70PercentMemberago:AssuredGuarantyUSHoldingIncMember2019-01-012019-12-310001273813us-gaap:SeniorNotesMemberago:AssuredGuarantyUSHoldingIncMemberago:SeniorNotes5.0PercentMember2021-01-012021-12-310001273813us-gaap:SeniorNotesMemberago:AssuredGuarantyUSHoldingIncMemberago:SeniorNotes5.0PercentMember2020-01-012020-12-310001273813us-gaap:SeniorNotesMemberago:AssuredGuarantyUSHoldingIncMemberago:SeniorNotes5.0PercentMember2019-01-012019-12-310001273813ago:SeniorNotes315PercentMemberus-gaap:SeniorNotesMemberago:AssuredGuarantyUSHoldingIncMember2021-01-012021-12-310001273813ago:SeniorNotes315PercentMemberus-gaap:SeniorNotesMemberago:AssuredGuarantyUSHoldingIncMember2020-01-012020-12-310001273813ago:SeniorNotes315PercentMemberus-gaap:SeniorNotesMemberago:AssuredGuarantyUSHoldingIncMember2019-01-012019-12-310001273813ago:SeniorNotes36PercentMemberus-gaap:SeniorNotesMemberago:AssuredGuarantyUSHoldingIncMember2021-01-012021-12-310001273813ago:SeniorNotes36PercentMemberus-gaap:SeniorNotesMemberago:AssuredGuarantyUSHoldingIncMember2020-01-012020-12-310001273813ago:SeniorNotes36PercentMemberus-gaap:SeniorNotesMemberago:AssuredGuarantyUSHoldingIncMember2019-01-012019-12-310001273813ago:EnhancedJuniorSubordinatedDebenturesMemberago:AssuredGuarantyUSHoldingIncMember2021-01-012021-12-310001273813ago:EnhancedJuniorSubordinatedDebenturesMemberago:AssuredGuarantyUSHoldingIncMember2020-01-012020-12-310001273813ago:EnhancedJuniorSubordinatedDebenturesMemberago:AssuredGuarantyUSHoldingIncMember2019-01-012019-12-310001273813ago:AssuredGuarantyMunicipalHoldingsIncMemberago:Quibs6875PercentMemberus-gaap:CorporateDebtSecuritiesMember2021-01-012021-12-310001273813ago:AssuredGuarantyMunicipalHoldingsIncMemberago:Quibs6875PercentMemberus-gaap:CorporateDebtSecuritiesMember2020-01-012020-12-310001273813ago:AssuredGuarantyMunicipalHoldingsIncMemberago:Quibs6875PercentMemberus-gaap:CorporateDebtSecuritiesMember2019-01-012019-12-310001273813us-gaap:NotesPayableOtherPayablesMemberago:AssuredGuarantyMunicipalHoldingsIncMemberago:NotesPayable625PercentMember2021-01-012021-12-310001273813us-gaap:NotesPayableOtherPayablesMemberago:AssuredGuarantyMunicipalHoldingsIncMemberago:NotesPayable625PercentMember2020-01-012020-12-310001273813us-gaap:NotesPayableOtherPayablesMemberago:AssuredGuarantyMunicipalHoldingsIncMemberago:NotesPayable625PercentMember2019-01-012019-12-310001273813us-gaap:NotesPayableOtherPayablesMemberago:AssuredGuarantyMunicipalHoldingsIncMemberago:NotesPayable560PercentMember2021-01-012021-12-310001273813us-gaap:NotesPayableOtherPayablesMemberago:AssuredGuarantyMunicipalHoldingsIncMemberago:NotesPayable560PercentMember2020-01-012020-12-310001273813us-gaap:NotesPayableOtherPayablesMemberago:AssuredGuarantyMunicipalHoldingsIncMemberago:NotesPayable560PercentMember2019-01-012019-12-310001273813ago:AssuredGuarantyMunicipalHoldingsIncMemberus-gaap:JuniorSubordinatedDebtMember2021-01-012021-12-310001273813ago:AssuredGuarantyMunicipalHoldingsIncMemberus-gaap:JuniorSubordinatedDebtMember2020-01-012020-12-310001273813ago:AssuredGuarantyMunicipalHoldingsIncMemberus-gaap:JuniorSubordinatedDebtMember2019-01-012019-12-310001273813ago:VariousOtherLongTermDebtMemberago:OtherLongTermDebtMember2021-01-012021-12-310001273813ago:VariousOtherLongTermDebtMemberago:OtherLongTermDebtMember2020-01-012020-12-310001273813ago:VariousOtherLongTermDebtMemberago:OtherLongTermDebtMember2019-01-012019-12-310001273813us-gaap:TrustPreferredSecuritiesSubjectToMandatoryRedemptionMemberago:AssuredGuarantyMunicipalCorpandAssuredGuarantyCorpMember2021-12-31ago:Trust0001273813ago:AssuredGuarantyCorpMemberus-gaap:TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember2021-01-012021-12-310001273813us-gaap:TrustPreferredSecuritiesSubjectToMandatoryRedemptionMemberago:AssuredGuarantyMunicipalCorpMember2021-01-012021-12-310001273813us-gaap:LetterOfCreditMemberus-gaap:SubsequentEventMemberago:ShortTermLoanFacilityMemberago:OneMonthMember2022-02-030001273813us-gaap:LetterOfCreditMemberus-gaap:SubsequentEventMemberago:ShortTermLoanFacilityMemberago:A6MonthsMember2022-02-030001273813us-gaap:LetterOfCreditMemberus-gaap:SubsequentEventMemberago:ShortTermLoanFacilityMemberago:A6MonthsMember2022-02-032022-02-030001273813us-gaap:LetterOfCreditMemberus-gaap:SubsequentEventMemberago:ShortTermLoanFacilityMemberago:OneMonthMember2022-02-032022-02-030001273813us-gaap:SecuredOvernightFinancingRateSofrOvernightIndexSwapRateMemberus-gaap:LetterOfCreditMemberus-gaap:SubsequentEventMemberago:ShortTermLoanFacilityMemberago:OneMonthMember2022-02-032022-02-030001273813ago:AgcTrustPreferredSecuritiesMember2021-12-310001273813ago:AgmTrustPreferredSecuritiesMember2021-12-310001273813ago:AssuredGuarantyLtd2004LongTermIncentivePlanMember2021-12-310001273813ago:AssuredGuarantyLtd2004LongTermIncentivePlanMemberus-gaap:EmployeeStockOptionMember2021-12-310001273813us-gaap:RestrictedStockUnitsRSUMember2020-12-310001273813us-gaap:RestrictedStockUnitsRSUMember2021-01-012021-12-310001273813us-gaap:RestrictedStockUnitsRSUMember2021-12-310001273813us-gaap:RestrictedStockUnitsRSUMember2020-01-012020-12-310001273813us-gaap:RestrictedStockUnitsRSUMember2019-01-012019-12-310001273813ago:PerformanceRestrictedStockUnitsMember2021-01-012021-12-310001273813srt:MinimumMemberago:PerformanceRestrictedStockUnitsMember2021-01-012021-12-310001273813srt:MaximumMemberago:PerformanceRestrictedStockUnitsMemberus-gaap:ShareBasedCompensationAwardTrancheTwoMember2021-01-012021-12-310001273813srt:MaximumMemberus-gaap:ShareBasedCompensationAwardTrancheThreeMemberago:PerformanceRestrictedStockUnitsMember2021-01-012021-12-310001273813ago:PerformanceRestrictedStockUnitsMember2020-12-310001273813ago:PerformanceRestrictedStockUnitsMember2021-12-310001273813ago:PerformanceRestrictedStockUnitsMember2020-01-012020-12-310001273813ago:PerformanceRestrictedStockUnitsMember2019-01-012019-12-310001273813ago:PerformanceRestrictedStockUnitsTiedtoRelativeTSRMember2021-01-012021-12-310001273813ago:PerformanceRestrictedStockUnitsTiedtoRelativeTSRMember2020-01-012020-12-310001273813ago:PerformanceRestrictedStockUnitsTiedtoRelativeTSRMember2019-01-012019-12-310001273813srt:MinimumMemberus-gaap:RestrictedStockMember2021-01-012021-12-310001273813srt:MaximumMemberus-gaap:RestrictedStockMember2021-01-012021-12-310001273813us-gaap:RestrictedStockMembersrt:DirectorMember2021-01-012021-12-310001273813us-gaap:RestrictedStockMember2020-12-310001273813us-gaap:RestrictedStockMember2021-01-012021-12-310001273813us-gaap:RestrictedStockMember2021-12-310001273813us-gaap:RestrictedStockMember2020-01-012020-12-310001273813us-gaap:RestrictedStockMember2019-01-012019-12-310001273813us-gaap:EmployeeStockOptionMember2014-01-012021-12-310001273813us-gaap:EmployeeStockOptionMember2020-12-310001273813us-gaap:EmployeeStockOptionMember2021-01-012021-12-310001273813us-gaap:EmployeeStockOptionMember2020-01-012020-12-310001273813us-gaap:EmployeeStockOptionMember2019-01-012019-12-310001273813ago:PerformanceStockOptionsMember2012-01-012021-12-310001273813ago:PerformanceStockOptionsMember2021-12-310001273813ago:PerformanceStockOptionsMember2020-12-310001273813us-gaap:EmployeeStockMemberago:EmployeeStockPurchasePlanMember2021-12-310001273813us-gaap:EmployeeStockMemberago:EmployeeStockPurchasePlanMember2021-01-012021-12-310001273813us-gaap:EmployeeStockMemberago:EmployeeStockPurchasePlanMember2020-01-012020-12-310001273813us-gaap:EmployeeStockMemberago:EmployeeStockPurchasePlanMember2019-01-012019-12-310001273813country:USago:A401kPlanMember2021-01-012021-12-310001273813country:USago:A401kPlanMember2020-01-012020-12-310001273813country:USago:A401kPlanMember2019-01-012019-12-310001273813country:USago:NonqualifiedSupplementalExecutiveRetirementPlanMember2021-01-012021-12-310001273813country:US2021-01-012021-12-310001273813country:GB2021-01-012021-12-310001273813ago:CIFGHoldingInc.Member2021-12-310001273813us-gaap:ForeignCountryMember2021-01-012021-12-310001273813country:FR2021-01-012021-12-310001273813country:FR2020-01-012020-12-310001273813country:US2021-01-012021-12-310001273813country:US2020-01-012020-12-310001273813country:US2019-01-012019-12-310001273813country:BM2021-01-012021-12-310001273813country:BM2020-01-012020-12-310001273813country:BM2019-01-012019-12-310001273813country:GB2021-01-012021-12-310001273813country:GB2020-01-012020-12-310001273813country:GB2019-01-012019-12-310001273813ago:OtherCountriesMember2021-01-012021-12-310001273813ago:OtherCountriesMember2020-01-012020-12-310001273813ago:OtherCountriesMember2019-01-012019-12-310001273813ago:AssuredGuarantyMunicipalCorpMember2021-01-012021-12-310001273813ago:AssuredGuarantyMunicipalCorpMember2020-01-012020-12-310001273813ago:AssuredGuarantyMunicipalCorpMember2019-01-012019-12-310001273813ago:AssuredGuarantyCorpMember2021-12-310001273813ago:AssuredGuarantyCorpMember2020-12-310001273813ago:AssuredGuarantyCorpMember2020-01-012020-12-310001273813ago:AssuredGuarantyCorpMember2019-01-012019-12-310001273813ago:AssuredGuarantyReMember2021-12-310001273813ago:AssuredGuarantyReMember2020-12-310001273813ago:AssuredGuarantyReMember2020-01-012020-12-310001273813ago:AssuredGuarantyReMember2019-01-012019-12-310001273813ago:AssuredGuarantyReOverseasMember2021-12-310001273813ago:AssuredGuarantyReOverseasMember2020-12-310001273813ago:AssuredGuarantyReOverseasMember2021-01-012021-12-310001273813ago:AssuredGuarantyReOverseasMember2020-01-012020-12-310001273813ago:AssuredGuarantyReOverseasMember2019-01-012019-12-310001273813ago:MunicipalAssuranceCorpHoldingsMembersrt:SubsidiariesMemberago:AssuredGuarantyMunicipalCorpMember2021-12-310001273813ago:AssuredGuarantyCorpMemberago:MunicipalAssuranceCorpHoldingsMembersrt:SubsidiariesMember2021-12-310001273813ago:AGUKMember2021-12-31iso4217:GBP0001273813ago:AGUKMember2020-12-310001273813ago:AGEMember2021-12-310001273813ago:AGEMember2020-12-310001273813ago:AssuredGuarantyMunicipalCorpAndMunicipalAssuranceCorpMemberstpr:NY2021-01-012021-12-310001273813srt:ScenarioForecastMemberstpr:NYago:AssuredGuarantyMunicipalCorpMember2022-12-310001273813srt:ScenarioForecastMemberstpr:NYago:AssuredGuarantyMunicipalCorpMember2022-03-310001273813ago:AssuredGuarantyCorpMemberstpr:MD2021-01-012021-12-310001273813ago:AssuredGuarantyCorpMemberago:AssuredGuarantyUSHoldingIncMemberstpr:MD2021-12-310001273813ago:AssuredGuarantyCorpMembersrt:ScenarioForecastMemberstpr:MD2022-03-310001273813country:BMago:AssuredGuarantyReMember2021-01-012021-12-310001273813country:BMago:AssuredGuarantyReMember2021-12-310001273813ago:AssuredGuarantyReOverseasMembercountry:BM2021-12-310001273813ago:AssuredGuarantyReOverseasMembercountry:BM2021-01-012021-12-310001273813ago:AssuredGuarantyCorpMemberago:AssuredGuarantyUSHoldingIncMembersrt:AffiliatedEntityMember2021-01-012021-12-310001273813ago:AssuredGuarantyCorpMemberago:AssuredGuarantyUSHoldingIncMembersrt:AffiliatedEntityMember2020-01-012020-12-310001273813ago:AssuredGuarantyCorpMemberago:AssuredGuarantyUSHoldingIncMembersrt:AffiliatedEntityMember2019-01-012019-12-310001273813ago:AssuredGuarantyMunicipalHoldingsIncMembersrt:AffiliatedEntityMemberago:AssuredGuarantyMunicipalCorpMember2021-01-012021-12-310001273813ago:AssuredGuarantyMunicipalHoldingsIncMembersrt:AffiliatedEntityMemberago:AssuredGuarantyMunicipalCorpMember2020-01-012020-12-310001273813ago:AssuredGuarantyMunicipalHoldingsIncMembersrt:AffiliatedEntityMemberago:AssuredGuarantyMunicipalCorpMember2019-01-012019-12-310001273813ago:AssuredGuarantyReMembersrt:AffiliatedEntityMemberago:AssuredGuarantyLtdMember2021-01-012021-12-310001273813ago:AssuredGuarantyReMembersrt:AffiliatedEntityMemberago:AssuredGuarantyLtdMember2020-01-012020-12-310001273813ago:AssuredGuarantyReMembersrt:AffiliatedEntityMemberago:AssuredGuarantyLtdMember2019-01-012019-12-310001273813srt:AffiliatedEntityMemberago:AGUKMemberago:AssuredGuarantyMunicipalCorpMember2021-01-012021-12-310001273813srt:AffiliatedEntityMemberago:AGUKMemberago:AssuredGuarantyMunicipalCorpMember2020-01-012020-12-310001273813srt:AffiliatedEntityMemberago:AGUKMemberago:AssuredGuarantyMunicipalCorpMember2019-01-012019-12-310001273813ago:AGEMembersrt:AffiliatedEntityMemberago:AssuredGuarantyMunicipalCorpMember2021-01-012021-12-310001273813ago:AGEMembersrt:AffiliatedEntityMemberago:AssuredGuarantyMunicipalCorpMember2020-01-012020-12-310001273813ago:AGEMembersrt:AffiliatedEntityMemberago:AssuredGuarantyMunicipalCorpMember2019-01-012019-12-310001273813ago:AssuredGuarantyReMemberago:AssuredGuarantyLtdMemberus-gaap:FixedMaturitiesMember2021-01-012021-12-310001273813ago:AssuredGuarantyReMemberago:AssuredGuarantyLtdMemberus-gaap:FixedMaturitiesMember2020-01-012020-12-310001273813ago:WellingtonManagementCompanyLlpMember2021-12-31