View:
Download DOC
Download PDF
Download XLS
Download XBRL
Document
false--12-31Q120192019-03-310001363829falseLarge Accelerated FilerEnstar Group LTDfalseESGRP7Y11M22DP7Y3M29DP8Y3DP7Y4M24DP1YP1YP3MP3M411514330001426750001151459997910010179503152599672214675159100101795783325996722145999791001017950315259967221467515910010179578332599672P5YP3Y0.300.30P2YP3YP5Y0.0170.393516000000038857116000440038857116000440016000440016000440040500026000003890000042155900091000026000003890004000000001100000004215590003885713885710 0001363829 2019-01-01 2019-03-31 0001363829 esgr:VotingCommonStockMember 2019-05-07 0001363829 us-gaap:NonvotingCommonStockMember 2019-05-07 0001363829 2018-12-31 0001363829 2019-03-31 0001363829 us-gaap:SeriesEPreferredStockMember 2018-12-31 0001363829 us-gaap:ShortTermInvestmentsMember 2018-12-31 0001363829 us-gaap:CommonClassCMember 2019-03-31 0001363829 us-gaap:SeriesCPreferredStockMember 2018-12-31 0001363829 us-gaap:FixedMaturitiesMember 2018-12-31 0001363829 us-gaap:CommonClassCMember 2018-12-31 0001363829 esgr:VotingCommonStockMember 2018-12-31 0001363829 esgr:VotingCommonStockMember 2019-03-31 0001363829 us-gaap:SeriesEPreferredStockMember 2019-03-31 0001363829 us-gaap:SeriesCPreferredStockMember 2019-03-31 0001363829 us-gaap:SeriesDPreferredStockMember 2018-12-31 0001363829 esgr:CommonClassEMember 2019-03-31 0001363829 us-gaap:FixedMaturitiesMember 2019-03-31 0001363829 us-gaap:ShortTermInvestmentsMember 2019-03-31 0001363829 us-gaap:SeriesDPreferredStockMember 2019-03-31 0001363829 esgr:CommonClassEMember 2018-12-31 0001363829 2018-01-01 2018-03-31 0001363829 us-gaap:RetainedEarningsMember 2019-01-01 2019-03-31 0001363829 us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember 2019-03-31 0001363829 us-gaap:SeriesEPreferredStockMember us-gaap:PreferredStockMember 2018-03-31 0001363829 us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember 2019-03-31 0001363829 esgr:VotingCommonStockMember us-gaap:CommonStockMember 2018-01-01 2018-03-31 0001363829 us-gaap:AdditionalPaidInCapitalMember 2018-12-31 0001363829 us-gaap:CommonClassCMember us-gaap:CommonStockMember 2018-03-31 0001363829 us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember 2018-01-01 2018-03-31 0001363829 us-gaap:AdditionalPaidInCapitalMember 2017-12-31 0001363829 us-gaap:NoncontrollingInterestMember 2018-01-01 2018-03-31 0001363829 us-gaap:AdditionalPaidInCapitalMember 2018-01-01 2018-03-31 0001363829 us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember 2018-12-31 0001363829 us-gaap:AccumulatedOtherComprehensiveIncomeMember 2017-12-31 0001363829 us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember 2017-12-31 0001363829 us-gaap:AccumulatedOtherComprehensiveIncomeMember 2018-03-31 0001363829 us-gaap:RetainedEarningsMember 2017-12-31 0001363829 us-gaap:RetainedEarningsMember 2019-01-01 0001363829 esgr:CommonClassEMember us-gaap:CommonStockMember 2019-03-31 0001363829 us-gaap:AdditionalPaidInCapitalMember 2019-01-01 2019-03-31 0001363829 us-gaap:AccumulatedOtherComprehensiveIncomeMember 2018-12-31 0001363829 us-gaap:RetainedEarningsMember 2019-03-31 0001363829 us-gaap:RetainedEarningsMember 2018-01-01 2018-03-31 0001363829 us-gaap:AccumulatedTranslationAdjustmentMember 2019-03-31 0001363829 us-gaap:SeriesCPreferredStockMember us-gaap:PreferredStockMember 2019-03-31 0001363829 esgr:VotingCommonStockMember us-gaap:CommonStockMember 2017-12-31 0001363829 us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember 2018-03-31 0001363829 us-gaap:NoncontrollingInterestMember 2018-03-31 0001363829 esgr:VotingCommonStockMember us-gaap:CommonStockMember 2018-12-31 0001363829 esgr:VotingCommonStockMember us-gaap:CommonStockMember 2019-01-01 2019-03-31 0001363829 us-gaap:NoncontrollingInterestMember 2019-01-01 2019-03-31 0001363829 us-gaap:AccumulatedTranslationAdjustmentMember 2018-12-31 0001363829 us-gaap:TreasuryStockMember 2019-03-31 0001363829 us-gaap:AdditionalPaidInCapitalMember 2018-03-31 0001363829 esgr:VotingCommonStockMember us-gaap:CommonStockMember 2019-03-31 0001363829 us-gaap:AccumulatedTranslationAdjustmentMember 2017-12-31 0001363829 esgr:VotingCommonStockMember us-gaap:CommonStockMember 2018-03-31 0001363829 us-gaap:NoncontrollingInterestMember 2017-12-31 0001363829 us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember 2019-01-01 2019-03-31 0001363829 us-gaap:CommonClassCMember us-gaap:CommonStockMember 2019-03-31 0001363829 us-gaap:AccumulatedOtherComprehensiveIncomeMember 2019-03-31 0001363829 us-gaap:AccumulatedTranslationAdjustmentMember 2018-01-01 2018-03-31 0001363829 us-gaap:RetainedEarningsMember 2018-01-01 0001363829 us-gaap:AccumulatedTranslationAdjustmentMember 2019-01-01 2019-03-31 0001363829 us-gaap:SeriesEPreferredStockMember us-gaap:PreferredStockMember 2019-03-31 0001363829 us-gaap:SeriesDPreferredStockMember us-gaap:PreferredStockMember 2018-03-31 0001363829 us-gaap:RetainedEarningsMember 2018-12-31 0001363829 us-gaap:NoncontrollingInterestMember 2019-03-31 0001363829 us-gaap:RetainedEarningsMember 2018-03-31 0001363829 us-gaap:NoncontrollingInterestMember 2018-12-31 0001363829 us-gaap:TreasuryStockMember 2018-03-31 0001363829 us-gaap:AdditionalPaidInCapitalMember 2019-03-31 0001363829 us-gaap:SeriesCPreferredStockMember us-gaap:PreferredStockMember 2018-03-31 0001363829 us-gaap:AccumulatedTranslationAdjustmentMember 2018-03-31 0001363829 us-gaap:SeriesDPreferredStockMember us-gaap:PreferredStockMember 2019-03-31 0001363829 esgr:CommonClassEMember us-gaap:CommonStockMember 2018-03-31 0001363829 us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember 2018-03-31 0001363829 us-gaap:SeriesDPreferredStockMember us-gaap:PreferredStockMember 2017-12-31 0001363829 us-gaap:CommonClassCMember us-gaap:CommonStockMember 2017-12-31 0001363829 esgr:CommonClassEMember us-gaap:CommonStockMember 2017-12-31 0001363829 esgr:CommonClassEMember us-gaap:CommonStockMember 2018-12-31 0001363829 us-gaap:SeriesEPreferredStockMember us-gaap:PreferredStockMember 2018-12-31 0001363829 us-gaap:SeriesDPreferredStockMember us-gaap:PreferredStockMember 2018-12-31 0001363829 us-gaap:CommonClassCMember us-gaap:CommonStockMember 2018-12-31 0001363829 us-gaap:TreasuryStockMember 2017-12-31 0001363829 us-gaap:SeriesCPreferredStockMember us-gaap:PreferredStockMember 2018-12-31 0001363829 us-gaap:SeriesCPreferredStockMember us-gaap:PreferredStockMember 2017-12-31 0001363829 us-gaap:SeriesEPreferredStockMember us-gaap:PreferredStockMember 2017-12-31 0001363829 us-gaap:TreasuryStockMember 2018-12-31 0001363829 2017-12-31 0001363829 2018-03-31 0001363829 us-gaap:AccountingStandardsUpdate201602Member 2019-01-01 0001363829 esgr:ZurichMember us-gaap:ScenarioForecastMember 2019-01-01 2019-12-31 0001363829 esgr:MaidenReBermudaMember 2019-03-01 2019-03-01 0001363829 esgr:MaidenReBermudaMember srt:MaximumMember 2019-03-01 2019-03-01 0001363829 esgr:MaidenReBermudaMember srt:MinimumMember 2019-03-01 2019-03-01 0001363829 esgr:AmerisureMember us-gaap:ScenarioForecastMember 2019-01-01 2019-06-30 0001363829 esgr:AmTrustRITCMember 2019-02-14 2019-02-14 0001363829 esgr:AmTrustRITCMember 2019-02-14 0001363829 esgr:OtherEquityMethodInvestmentsMember 2019-03-31 0001363829 esgr:OtherEquityMethodInvestmentsMember 2018-12-31 0001363829 esgr:HedgeFundsFixedIncomeMember 2019-01-01 2019-03-31 0001363829 esgr:FixedIncomeFundOneMember us-gaap:FixedIncomeFundsMember 2019-01-01 2019-03-31 0001363829 us-gaap:AvailableforsaleSecuritiesMember 2018-12-31 0001363829 us-gaap:USGovernmentAgenciesDebtSecuritiesMember us-gaap:FixedMaturitiesMember 2019-03-31 0001363829 us-gaap:CorporateDebtSecuritiesMember us-gaap:FixedMaturitiesMember 2019-03-31 0001363829 us-gaap:ResidentialMortgageBackedSecuritiesMember esgr:FundsHeldDirectlyManagedMember 2019-03-31 0001363829 us-gaap:MunicipalBondsMember esgr:FundsHeldDirectlyManagedMember 2019-03-31 0001363829 us-gaap:AssetBackedSecuritiesMember us-gaap:FixedMaturitiesMember 2019-03-31 0001363829 esgr:OtherGovernmentAgenciesDebtSecuritiesMember us-gaap:FixedMaturitiesMember 2019-03-31 0001363829 esgr:UnitedKingdomGovernmentAgenciesDebtSecuritiesMember us-gaap:ShortTermInvestmentsMember 2019-03-31 0001363829 us-gaap:CorporateDebtSecuritiesMember esgr:FundsHeldDirectlyManagedMember 2019-03-31 0001363829 us-gaap:AssetBackedSecuritiesMember 2019-03-31 0001363829 esgr:OtherGovernmentAgenciesDebtSecuritiesMember esgr:FundsHeldDirectlyManagedMember 2019-03-31 0001363829 us-gaap:ResidentialMortgageBackedSecuritiesMember us-gaap:ShortTermInvestmentsMember 2019-03-31 0001363829 us-gaap:ResidentialMortgageBackedSecuritiesMember 2019-03-31 0001363829 esgr:FundsHeldDirectlyManagedMember 2019-03-31 0001363829 us-gaap:MunicipalBondsMember us-gaap:ShortTermInvestmentsMember 2019-03-31 0001363829 us-gaap:USGovernmentAgenciesDebtSecuritiesMember us-gaap:ShortTermInvestmentsMember 2019-03-31 0001363829 esgr:UnitedKingdomGovernmentAgenciesDebtSecuritiesMember us-gaap:FixedMaturitiesMember 2019-03-31 0001363829 esgr:UnitedKingdomGovernmentAgenciesDebtSecuritiesMember esgr:FundsHeldDirectlyManagedMember 2019-03-31 0001363829 esgr:OtherGovernmentAgenciesDebtSecuritiesMember us-gaap:ShortTermInvestmentsMember 2019-03-31 0001363829 us-gaap:MunicipalBondsMember 2019-03-31 0001363829 us-gaap:ResidentialMortgageBackedSecuritiesMember us-gaap:FixedMaturitiesMember 2019-03-31 0001363829 us-gaap:MunicipalBondsMember us-gaap:FixedMaturitiesMember 2019-03-31 0001363829 us-gaap:CommercialMortgageBackedSecuritiesMember esgr:FundsHeldDirectlyManagedMember 2019-03-31 0001363829 us-gaap:CorporateDebtSecuritiesMember 2019-03-31 0001363829 us-gaap:USGovernmentAgenciesDebtSecuritiesMember esgr:FundsHeldDirectlyManagedMember 2019-03-31 0001363829 esgr:OtherGovernmentAgenciesDebtSecuritiesMember 2019-03-31 0001363829 us-gaap:AssetBackedSecuritiesMember us-gaap:ShortTermInvestmentsMember 2019-03-31 0001363829 us-gaap:CommercialMortgageBackedSecuritiesMember us-gaap:ShortTermInvestmentsMember 2019-03-31 0001363829 us-gaap:CommercialMortgageBackedSecuritiesMember us-gaap:FixedMaturitiesMember 2019-03-31 0001363829 us-gaap:CorporateDebtSecuritiesMember us-gaap:ShortTermInvestmentsMember 2019-03-31 0001363829 us-gaap:USGovernmentAgenciesDebtSecuritiesMember 2019-03-31 0001363829 esgr:UnitedKingdomGovernmentAgenciesDebtSecuritiesMember 2019-03-31 0001363829 us-gaap:AssetBackedSecuritiesMember esgr:FundsHeldDirectlyManagedMember 2019-03-31 0001363829 us-gaap:CommercialMortgageBackedSecuritiesMember 2019-03-31 0001363829 us-gaap:MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember 2018-12-31 0001363829 us-gaap:MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember 2019-03-31 0001363829 esgr:SeniorSecuredDebtSecuritiesMember 2019-03-31 0001363829 esgr:SeniorSecuredDebtSecuritiesMember 2018-12-31 0001363829 us-gaap:CorporateDebtSecuritiesMember us-gaap:ShortTermInvestmentsMember 2018-12-31 0001363829 us-gaap:CommercialMortgageBackedSecuritiesMember us-gaap:ShortTermInvestmentsMember 2018-12-31 0001363829 esgr:OtherGovernmentAgenciesDebtSecuritiesMember us-gaap:FixedMaturitiesMember 2018-12-31 0001363829 us-gaap:AssetBackedSecuritiesMember 2018-12-31 0001363829 us-gaap:AssetBackedSecuritiesMember us-gaap:ShortTermInvestmentsMember 2018-12-31 0001363829 us-gaap:CorporateDebtSecuritiesMember us-gaap:FixedMaturitiesMember 2018-12-31 0001363829 us-gaap:CommercialMortgageBackedSecuritiesMember esgr:FundsHeldDirectlyManagedMember 2018-12-31 0001363829 us-gaap:CommercialMortgageBackedSecuritiesMember us-gaap:FixedMaturitiesMember 2018-12-31 0001363829 us-gaap:ResidentialMortgageBackedSecuritiesMember us-gaap:FixedMaturitiesMember 2018-12-31 0001363829 us-gaap:USGovernmentAgenciesDebtSecuritiesMember us-gaap:FixedMaturitiesMember 2018-12-31 0001363829 esgr:OtherGovernmentAgenciesDebtSecuritiesMember esgr:FundsHeldDirectlyManagedMember 2018-12-31 0001363829 us-gaap:AssetBackedSecuritiesMember us-gaap:FixedMaturitiesMember 2018-12-31 0001363829 us-gaap:CorporateDebtSecuritiesMember 2018-12-31 0001363829 us-gaap:USGovernmentAgenciesDebtSecuritiesMember us-gaap:ShortTermInvestmentsMember 2018-12-31 0001363829 esgr:OtherGovernmentAgenciesDebtSecuritiesMember us-gaap:ShortTermInvestmentsMember 2018-12-31 0001363829 us-gaap:USGovernmentAgenciesDebtSecuritiesMember 2018-12-31 0001363829 us-gaap:MunicipalBondsMember 2018-12-31 0001363829 us-gaap:AssetBackedSecuritiesMember esgr:FundsHeldDirectlyManagedMember 2018-12-31 0001363829 esgr:UnitedKingdomGovernmentAgenciesDebtSecuritiesMember us-gaap:FixedMaturitiesMember 2018-12-31 0001363829 us-gaap:CommercialMortgageBackedSecuritiesMember 2018-12-31 0001363829 esgr:OtherGovernmentAgenciesDebtSecuritiesMember 2018-12-31 0001363829 esgr:UnitedKingdomGovernmentAgenciesDebtSecuritiesMember 2018-12-31 0001363829 us-gaap:MunicipalBondsMember us-gaap:FixedMaturitiesMember 2018-12-31 0001363829 us-gaap:USGovernmentAgenciesDebtSecuritiesMember esgr:FundsHeldDirectlyManagedMember 2018-12-31 0001363829 us-gaap:MunicipalBondsMember esgr:FundsHeldDirectlyManagedMember 2018-12-31 0001363829 us-gaap:ResidentialMortgageBackedSecuritiesMember 2018-12-31 0001363829 esgr:UnitedKingdomGovernmentAgenciesDebtSecuritiesMember esgr:FundsHeldDirectlyManagedMember 2018-12-31 0001363829 us-gaap:ResidentialMortgageBackedSecuritiesMember us-gaap:ShortTermInvestmentsMember 2018-12-31 0001363829 us-gaap:CorporateDebtSecuritiesMember esgr:FundsHeldDirectlyManagedMember 2018-12-31 0001363829 esgr:UnitedKingdomGovernmentAgenciesDebtSecuritiesMember us-gaap:ShortTermInvestmentsMember 2018-12-31 0001363829 esgr:FundsHeldDirectlyManagedMember 2018-12-31 0001363829 us-gaap:ResidentialMortgageBackedSecuritiesMember esgr:FundsHeldDirectlyManagedMember 2018-12-31 0001363829 us-gaap:MunicipalBondsMember us-gaap:ShortTermInvestmentsMember 2018-12-31 0001363829 esgr:StandardPoorsFitchBBBRatingMember us-gaap:ExternalCreditRatingInvestmentGradeMember us-gaap:CorporateDebtSecuritiesMember 2019-03-31 0001363829 us-gaap:ExternalCreditRatingNonInvestmentGradeMember us-gaap:AssetBackedSecuritiesMember 2019-03-31 0001363829 esgr:StandardPoorsFitchBBBRatingMember us-gaap:ExternalCreditRatingInvestmentGradeMember us-gaap:AssetBackedSecuritiesMember 2019-03-31 0001363829 esgr:StandardPoorsFitchAARatingMember us-gaap:ExternalCreditRatingInvestmentGradeMember us-gaap:AssetBackedSecuritiesMember 2019-03-31 0001363829 esgr:StandardPoorsFitchAAARatingMemberMember us-gaap:ExternalCreditRatingInvestmentGradeMember us-gaap:USGovernmentAgenciesDebtSecuritiesMember 2019-03-31 0001363829 esgr:StandardPoorsFitchAAARatingMemberMember us-gaap:ExternalCreditRatingInvestmentGradeMember 2019-03-31 0001363829 esgr:NotRatedMember us-gaap:CorporateDebtSecuritiesMember 2019-03-31 0001363829 esgr:StandardPoorsFitchAARatingMember us-gaap:ExternalCreditRatingInvestmentGradeMember us-gaap:USGovernmentAgenciesDebtSecuritiesMember 2019-03-31 0001363829 esgr:StandardPoorsFitchAAARatingMemberMember us-gaap:ExternalCreditRatingInvestmentGradeMember us-gaap:ResidentialMortgageBackedSecuritiesMember 2019-03-31 0001363829 esgr:NotRatedMember esgr:UnitedKingdomGovernmentAgenciesDebtSecuritiesMember 2019-03-31 0001363829 esgr:StandardPoorsFitchBBBRatingMember esgr:MarketableSecuritiesMember esgr:CreditRatingConcentrationRiskMember us-gaap:ExternalCreditRatingInvestmentGradeMember 2019-01-01 2019-03-31 0001363829 esgr:StandardPoorsFitchAARatingMember us-gaap:ExternalCreditRatingInvestmentGradeMember esgr:OtherGovernmentAgenciesDebtSecuritiesMember 2019-03-31 0001363829 esgr:StandardPoorsFitchAARatingMember us-gaap:ExternalCreditRatingInvestmentGradeMember us-gaap:ResidentialMortgageBackedSecuritiesMember 2019-03-31 0001363829 esgr:StandardPoorsFitchBBBRatingMember us-gaap:ExternalCreditRatingInvestmentGradeMember esgr:OtherGovernmentAgenciesDebtSecuritiesMember 2019-03-31 0001363829 esgr:StandardPoorsFitchAARatingMember us-gaap:ExternalCreditRatingInvestmentGradeMember 2019-03-31 0001363829 esgr:StandardPoorsFitchAARatingMember esgr:MarketableSecuritiesMember esgr:CreditRatingConcentrationRiskMember us-gaap:ExternalCreditRatingInvestmentGradeMember 2018-01-01 2018-12-31 0001363829 esgr:NotRatedMember us-gaap:AssetBackedSecuritiesMember 2019-03-31 0001363829 esgr:StandardPoorsFitchBBBRatingMember us-gaap:ExternalCreditRatingInvestmentGradeMember esgr:UnitedKingdomGovernmentAgenciesDebtSecuritiesMember 2019-03-31 0001363829 esgr:StandardPoorsFitchAAARatingMemberMember us-gaap:ExternalCreditRatingInvestmentGradeMember esgr:UnitedKingdomGovernmentAgenciesDebtSecuritiesMember 2019-03-31 0001363829 esgr:StandardPoorsFitchARatingMember us-gaap:ExternalCreditRatingInvestmentGradeMember us-gaap:ResidentialMortgageBackedSecuritiesMember 2019-03-31 0001363829 esgr:StandardPoorsFitchAAARatingMemberMember us-gaap:ExternalCreditRatingInvestmentGradeMember us-gaap:CorporateDebtSecuritiesMember 2019-03-31 0001363829 us-gaap:ExternalCreditRatingNonInvestmentGradeMember 2019-03-31 0001363829 esgr:MarketableSecuritiesMember esgr:PortfolioConcentrationRiskMember esgr:UnitedKingdomGovernmentAgenciesDebtSecuritiesMember esgr:TradingSecuritiesandAvailableforSaleSecuritiesMember 2019-01-01 2019-03-31 0001363829 esgr:StandardPoorsFitchARatingMember esgr:MarketableSecuritiesMember esgr:CreditRatingConcentrationRiskMember us-gaap:ExternalCreditRatingInvestmentGradeMember 2019-01-01 2019-03-31 0001363829 esgr:StandardPoorsFitchARatingMember us-gaap:ExternalCreditRatingInvestmentGradeMember us-gaap:MunicipalBondsMember 2019-03-31 0001363829 esgr:MarketableSecuritiesMember esgr:PortfolioConcentrationRiskMember esgr:TradingSecuritiesandAvailableforSaleSecuritiesMember 2019-01-01 2019-03-31 0001363829 esgr:StandardPoorsFitchARatingMember us-gaap:ExternalCreditRatingInvestmentGradeMember us-gaap:USGovernmentAgenciesDebtSecuritiesMember 2019-03-31 0001363829 esgr:StandardPoorsFitchAAARatingMemberMember us-gaap:ExternalCreditRatingInvestmentGradeMember us-gaap:MunicipalBondsMember 2019-03-31 0001363829 esgr:StandardPoorsFitchBBBRatingMember us-gaap:ExternalCreditRatingInvestmentGradeMember us-gaap:ResidentialMortgageBackedSecuritiesMember 2019-03-31 0001363829 esgr:NotRatedMember 2019-03-31 0001363829 esgr:MarketableSecuritiesMember esgr:PortfolioConcentrationRiskMember us-gaap:CommercialMortgageBackedSecuritiesMember esgr:TradingSecuritiesandAvailableforSaleSecuritiesMember 2019-01-01 2019-03-31 0001363829 esgr:MarketableSecuritiesMember esgr:CreditRatingConcentrationRiskMember us-gaap:ExternalCreditRatingNonInvestmentGradeMember 2018-01-01 2018-12-31 0001363829 esgr:StandardPoorsFitchARatingMember us-gaap:ExternalCreditRatingInvestmentGradeMember 2019-03-31 0001363829 esgr:StandardPoorsFitchAAARatingMemberMember esgr:MarketableSecuritiesMember esgr:CreditRatingConcentrationRiskMember us-gaap:ExternalCreditRatingInvestmentGradeMember 2019-01-01 2019-03-31 0001363829 esgr:StandardPoorsFitchBBBRatingMember us-gaap:ExternalCreditRatingInvestmentGradeMember 2019-03-31 0001363829 esgr:StandardPoorsFitchBBBRatingMember us-gaap:ExternalCreditRatingInvestmentGradeMember us-gaap:CommercialMortgageBackedSecuritiesMember 2019-03-31 0001363829 esgr:StandardPoorsFitchARatingMember us-gaap:ExternalCreditRatingInvestmentGradeMember us-gaap:CommercialMortgageBackedSecuritiesMember 2019-03-31 0001363829 esgr:StandardPoorsFitchAAARatingMemberMember us-gaap:ExternalCreditRatingInvestmentGradeMember us-gaap:AssetBackedSecuritiesMember 2019-03-31 0001363829 esgr:StandardPoorsFitchAAARatingMemberMember us-gaap:ExternalCreditRatingInvestmentGradeMember esgr:OtherGovernmentAgenciesDebtSecuritiesMember 2019-03-31 0001363829 esgr:StandardPoorsFitchARatingMember us-gaap:ExternalCreditRatingInvestmentGradeMember us-gaap:AssetBackedSecuritiesMember 2019-03-31 0001363829 esgr:StandardPoorsFitchAARatingMember us-gaap:ExternalCreditRatingInvestmentGradeMember esgr:UnitedKingdomGovernmentAgenciesDebtSecuritiesMember 2019-03-31 0001363829 esgr:StandardPoorsFitchARatingMember us-gaap:ExternalCreditRatingInvestmentGradeMember us-gaap:CorporateDebtSecuritiesMember 2019-03-31 0001363829 esgr:MarketableSecuritiesMember esgr:PortfolioConcentrationRiskMember us-gaap:MunicipalBondsMember esgr:TradingSecuritiesandAvailableforSaleSecuritiesMember 2019-01-01 2019-03-31 0001363829 us-gaap:ExternalCreditRatingNonInvestmentGradeMember us-gaap:MunicipalBondsMember 2019-03-31 0001363829 esgr:NotRatedMember us-gaap:MunicipalBondsMember 2019-03-31 0001363829 esgr:StandardPoorsFitchBBBRatingMember us-gaap:ExternalCreditRatingInvestmentGradeMember us-gaap:MunicipalBondsMember 2019-03-31 0001363829 esgr:StandardPoorsFitchAARatingMember us-gaap:ExternalCreditRatingInvestmentGradeMember us-gaap:CommercialMortgageBackedSecuritiesMember 2019-03-31 0001363829 us-gaap:ExternalCreditRatingNonInvestmentGradeMember us-gaap:USGovernmentAgenciesDebtSecuritiesMember 2019-03-31 0001363829 us-gaap:ExternalCreditRatingNonInvestmentGradeMember esgr:OtherGovernmentAgenciesDebtSecuritiesMember 2019-03-31 0001363829 us-gaap:ExternalCreditRatingNonInvestmentGradeMember us-gaap:ResidentialMortgageBackedSecuritiesMember 2019-03-31 0001363829 esgr:StandardPoorsFitchAARatingMember us-gaap:ExternalCreditRatingInvestmentGradeMember us-gaap:MunicipalBondsMember 2019-03-31 0001363829 esgr:MarketableSecuritiesMember esgr:PortfolioConcentrationRiskMember us-gaap:USGovernmentAgenciesDebtSecuritiesMember esgr:TradingSecuritiesandAvailableforSaleSecuritiesMember 2019-01-01 2019-03-31 0001363829 esgr:MarketableSecuritiesMember esgr:PortfolioConcentrationRiskMember us-gaap:AssetBackedSecuritiesMember esgr:TradingSecuritiesandAvailableforSaleSecuritiesMember 2019-01-01 2019-03-31 0001363829 esgr:StandardPoorsFitchAARatingMember us-gaap:ExternalCreditRatingInvestmentGradeMember us-gaap:CorporateDebtSecuritiesMember 2019-03-31 0001363829 esgr:NotRatedMember us-gaap:USGovernmentAgenciesDebtSecuritiesMember 2019-03-31 0001363829 esgr:NotRatedMember esgr:OtherGovernmentAgenciesDebtSecuritiesMember 2019-03-31 0001363829 esgr:StandardPoorsFitchBBBRatingMember us-gaap:ExternalCreditRatingInvestmentGradeMember us-gaap:USGovernmentAgenciesDebtSecuritiesMember 2019-03-31 0001363829 esgr:MarketableSecuritiesMember esgr:PortfolioConcentrationRiskMember esgr:OtherGovernmentAgenciesDebtSecuritiesMember esgr:TradingSecuritiesandAvailableforSaleSecuritiesMember 2019-01-01 2019-03-31 0001363829 esgr:StandardPoorsFitchAAARatingMemberMember us-gaap:ExternalCreditRatingInvestmentGradeMember us-gaap:CommercialMortgageBackedSecuritiesMember 2019-03-31 0001363829 us-gaap:ExternalCreditRatingNonInvestmentGradeMember esgr:UnitedKingdomGovernmentAgenciesDebtSecuritiesMember 2019-03-31 0001363829 esgr:NotRatedMember esgr:MarketableSecuritiesMember esgr:CreditRatingConcentrationRiskMember 2018-01-01 2018-12-31 0001363829 esgr:MarketableSecuritiesMember esgr:PortfolioConcentrationRiskMember us-gaap:ResidentialMortgageBackedSecuritiesMember esgr:TradingSecuritiesandAvailableforSaleSecuritiesMember 2019-01-01 2019-03-31 0001363829 esgr:StandardPoorsFitchARatingMember us-gaap:ExternalCreditRatingInvestmentGradeMember esgr:OtherGovernmentAgenciesDebtSecuritiesMember 2019-03-31 0001363829 esgr:StandardPoorsFitchARatingMember us-gaap:ExternalCreditRatingInvestmentGradeMember esgr:UnitedKingdomGovernmentAgenciesDebtSecuritiesMember 2019-03-31 0001363829 esgr:MarketableSecuritiesMember esgr:PortfolioConcentrationRiskMember us-gaap:CorporateDebtSecuritiesMember esgr:TradingSecuritiesandAvailableforSaleSecuritiesMember 2019-01-01 2019-03-31 0001363829 esgr:NotRatedMember us-gaap:CommercialMortgageBackedSecuritiesMember 2019-03-31 0001363829 esgr:NotRatedMember us-gaap:ResidentialMortgageBackedSecuritiesMember 2019-03-31 0001363829 us-gaap:ExternalCreditRatingNonInvestmentGradeMember us-gaap:CommercialMortgageBackedSecuritiesMember 2019-03-31 0001363829 us-gaap:ExternalCreditRatingNonInvestmentGradeMember us-gaap:CorporateDebtSecuritiesMember 2019-03-31 0001363829 us-gaap:AvailableforsaleSecuritiesMember 2019-03-31 0001363829 esgr:PublicEquityFundsMember 2018-12-31 0001363829 us-gaap:PrivateEquityFundsMember 2018-12-31 0001363829 esgr:PublicEquityFundsMember 2019-03-31 0001363829 us-gaap:PrivateEquityFundsMember 2019-03-31 0001363829 esgr:AmTrustFinancialServicesInc.Member 2018-12-31 0001363829 esgr:AmTrustFinancialServicesInc.Member 2019-03-31 0001363829 us-gaap:HedgeFundsMember 2019-03-31 0001363829 esgr:FixedIncomeFundOneMember us-gaap:FixedIncomeFundsMember 2019-03-31 0001363829 esgr:CLOEquityFundTwoMember 2019-03-31 0001363829 us-gaap:OtherInvestmentsMember 2019-01-01 2019-03-31 0001363829 us-gaap:FixedIncomeFundsMember 2019-01-01 2019-03-31 0001363829 esgr:HedgeFundsFixedIncomeMember 2019-03-31 0001363829 us-gaap:HedgeFundsEquityMember 2019-01-01 2019-03-31 0001363829 esgr:FixedIncomeFundTwoMember us-gaap:FixedIncomeFundsMember 2019-03-31 0001363829 us-gaap:OtherLongTermInvestmentsMember 2018-12-31 0001363829 us-gaap:FixedIncomeFundsMember 2019-03-31 0001363829 esgr:CLOEquityFundsMember 2019-03-31 0001363829 us-gaap:EquityFundsMember 2018-12-31 0001363829 esgr:CLOEquityFundsMember 2018-12-31 0001363829 us-gaap:HedgeFundsMember 2018-12-31 0001363829 esgr:CLOEquityMember 2019-03-31 0001363829 esgr:PrivateCreditFundsMember 2019-03-31 0001363829 us-gaap:EquityFundsMember 2019-03-31 0001363829 us-gaap:OtherLongTermInvestmentsMember 2019-03-31 0001363829 esgr:CLOEquityMember 2018-12-31 0001363829 esgr:PrivateCreditFundsMember 2018-12-31 0001363829 us-gaap:FixedIncomeFundsMember 2018-12-31 0001363829 esgr:CitcoIIILimitedMember 2018-12-31 0001363829 esgr:MonumentMember 2019-03-31 0001363829 esgr:EnhanzedReMember 2019-03-31 0001363829 esgr:MonumentMember 2018-12-31 0001363829 esgr:CitcoIIILimitedMember 2019-03-31 0001363829 esgr:EnhanzedReMember 2018-12-31 0001363829 esgr:ClearSpringMember 2019-03-31 0001363829 esgr:ClearSpringMember 2018-12-31 0001363829 us-gaap:EquityMethodInvestmentsMember 2019-03-31 0001363829 esgr:AmTrustRITCMember 2019-03-31 0001363829 esgr:FundsHeldDirectlyManagedVariableReturnOptionMember 2019-03-31 0001363829 esgr:FundsHeldDirectlyManagedFairValueOptionMember 2018-12-31 0001363829 esgr:FundsHeldDirectlyManagedFairValueOptionMember 2019-03-31 0001363829 esgr:FundsHeldDirectlyManagedVariableReturnOptionMember 2018-12-31 0001363829 esgr:LifeSettlementsandOtherMember 2018-01-01 2018-03-31 0001363829 esgr:FundsHeldDirectlyManagedMember 2019-01-01 2019-03-31 0001363829 esgr:FundsHeldMember 2018-01-01 2018-03-31 0001363829 us-gaap:EquitySecuritiesMember 2018-01-01 2018-03-31 0001363829 us-gaap:OtherInvestmentsMember 2018-01-01 2018-03-31 0001363829 esgr:EquitiesandOtherInvestmentsMember 2019-01-01 2019-03-31 0001363829 esgr:FundsHeldMember 2019-01-01 2019-03-31 0001363829 esgr:FundsHeldDirectlyManagedMember 2018-01-01 2018-03-31 0001363829 esgr:LifeSettlementsandOtherMember 2019-01-01 2019-03-31 0001363829 esgr:ShortTermInvestmentsAndCashEquivalentsMember 2019-01-01 2019-03-31 0001363829 us-gaap:EquitySecuritiesMember 2019-01-01 2019-03-31 0001363829 esgr:ShortTermInvestmentsAndCashEquivalentsMember 2018-01-01 2018-03-31 0001363829 us-gaap:FixedMaturitiesMember 2019-01-01 2019-03-31 0001363829 esgr:FixedMaturitiesandCashandCashEquivalentsMember 2018-01-01 2018-03-31 0001363829 us-gaap:FixedMaturitiesMember 2018-01-01 2018-03-31 0001363829 esgr:EquitiesandOtherInvestmentsMember 2018-01-01 2018-03-31 0001363829 esgr:FixedMaturitiesandCashandCashEquivalentsMember 2019-01-01 2019-03-31 0001363829 us-gaap:DebtSecuritiesMember 2019-01-01 2019-03-31 0001363829 us-gaap:DebtSecuritiesMember 2018-01-01 2018-03-31 0001363829 us-gaap:AssetPledgedAsCollateralMember 2019-03-31 0001363829 us-gaap:AssetPledgedAsCollateralMember 2018-12-31 0001363829 us-gaap:NetInvestmentHedgingMember 2018-03-31 0001363829 us-gaap:NetInvestmentHedgingMember 2018-01-01 2018-03-31 0001363829 currency:AUD us-gaap:ForeignExchangeForwardMember us-gaap:DesignatedAsHedgingInstrumentMember 2018-12-31 0001363829 currency:EUR us-gaap:ForeignExchangeForwardMember us-gaap:DesignatedAsHedgingInstrumentMember 2018-12-31 0001363829 currency:EUR us-gaap:ForeignExchangeForwardMember us-gaap:DesignatedAsHedgingInstrumentMember 2019-03-31 0001363829 us-gaap:ForeignExchangeForwardMember us-gaap:DesignatedAsHedgingInstrumentMember 2019-03-31 0001363829 currency:AUD us-gaap:ForeignExchangeForwardMember us-gaap:DesignatedAsHedgingInstrumentMember 2019-03-31 0001363829 us-gaap:ForeignExchangeForwardMember us-gaap:DesignatedAsHedgingInstrumentMember 2018-12-31 0001363829 currency:EUR us-gaap:ForeignExchangeForwardMember us-gaap:DesignatedAsHedgingInstrumentMember 2018-01-01 2018-03-31 0001363829 currency:EUR us-gaap:ForeignExchangeForwardMember us-gaap:DesignatedAsHedgingInstrumentMember 2019-01-01 2019-03-31 0001363829 us-gaap:ForeignExchangeForwardMember us-gaap:DesignatedAsHedgingInstrumentMember 2018-01-01 2018-03-31 0001363829 us-gaap:ForeignExchangeForwardMember us-gaap:DesignatedAsHedgingInstrumentMember 2019-01-01 2019-03-31 0001363829 currency:AUD us-gaap:ForeignExchangeForwardMember us-gaap:DesignatedAsHedgingInstrumentMember 2018-01-01 2018-03-31 0001363829 currency:AUD us-gaap:ForeignExchangeForwardMember us-gaap:DesignatedAsHedgingInstrumentMember 2019-01-01 2019-03-31 0001363829 currency:GBP us-gaap:ForeignExchangeForwardMember us-gaap:NondesignatedMember 2019-01-01 2019-03-31 0001363829 currency:EUR us-gaap:ForeignExchangeForwardMember us-gaap:NondesignatedMember 2019-01-01 2019-03-31 0001363829 currency:EUR us-gaap:ForeignExchangeForwardMember us-gaap:NondesignatedMember 2018-01-01 2018-03-31 0001363829 currency:AUD us-gaap:ForeignExchangeForwardMember us-gaap:NondesignatedMember 2018-01-01 2018-03-31 0001363829 us-gaap:ForeignExchangeForwardMember us-gaap:NondesignatedMember 2019-01-01 2019-03-31 0001363829 us-gaap:ForeignExchangeForwardMember us-gaap:NondesignatedMember 2018-01-01 2018-03-31 0001363829 currency:GBP us-gaap:ForeignExchangeForwardMember us-gaap:NondesignatedMember 2018-01-01 2018-03-31 0001363829 currency:CAD us-gaap:ForeignExchangeForwardMember us-gaap:NondesignatedMember 2018-01-01 2018-03-31 0001363829 currency:CAD us-gaap:ForeignExchangeForwardMember us-gaap:NondesignatedMember 2019-01-01 2019-03-31 0001363829 currency:AUD us-gaap:ForeignExchangeForwardMember us-gaap:NondesignatedMember 2019-01-01 2019-03-31 0001363829 currency:CAD us-gaap:ForeignExchangeForwardMember us-gaap:NondesignatedMember 2019-03-31 0001363829 currency:EUR us-gaap:ForeignExchangeForwardMember us-gaap:NondesignatedMember 2018-12-31 0001363829 us-gaap:ForeignExchangeForwardMember us-gaap:NondesignatedMember 2018-12-31 0001363829 us-gaap:ForeignExchangeForwardMember us-gaap:NondesignatedMember 2019-03-31 0001363829 currency:EUR us-gaap:ForeignExchangeForwardMember us-gaap:NondesignatedMember 2019-03-31 0001363829 currency:CAD us-gaap:ForeignExchangeForwardMember us-gaap:NondesignatedMember 2018-12-31 0001363829 currency:GBP us-gaap:ForeignExchangeForwardMember us-gaap:NondesignatedMember 2019-03-31 0001363829 currency:AUD us-gaap:ForeignExchangeForwardMember us-gaap:NondesignatedMember 2019-03-31 0001363829 currency:AUD us-gaap:ForeignExchangeForwardMember us-gaap:NondesignatedMember 2018-12-31 0001363829 currency:GBP us-gaap:ForeignExchangeForwardMember us-gaap:NondesignatedMember 2018-12-31 0001363829 us-gaap:StockOptionMember us-gaap:NondesignatedMember 2018-03-31 0001363829 us-gaap:StockOptionMember us-gaap:NondesignatedMember 2018-01-01 2018-03-31 0001363829 us-gaap:StockOptionMember us-gaap:NondesignatedMember 2019-01-01 2019-03-31 0001363829 us-gaap:StockOptionMember us-gaap:NondesignatedMember 2018-12-31 0001363829 esgr:AtriumSegmentMember 2018-12-31 0001363829 esgr:StarStoneSegmentMember 2018-12-31 0001363829 esgr:NonlifeRunoffSegmentMember 2018-12-31 0001363829 esgr:StarStoneSegmentMember 2019-03-31 0001363829 esgr:NonlifeRunoffSegmentMember 2019-03-31 0001363829 esgr:AtriumSegmentMember 2019-03-31 0001363829 esgr:NonLifeRunOffandStarStoneSegmentMember 2019-01-01 2019-03-31 0001363829 esgr:TopTenReinsurersMember us-gaap:ReinsuranceRecoverableMember us-gaap:ReinsurerConcentrationRiskMember esgr:NonlifeRunoffSegmentMember 2018-12-31 0001363829 us-gaap:ReinsuranceRecoverableMember us-gaap:ReinsurerConcentrationRiskMember esgr:AtriumSegmentMember 2018-12-31 0001363829 us-gaap:ReinsuranceRecoverableMember us-gaap:ReinsurerConcentrationRiskMember 2018-01-01 2018-12-31 0001363829 esgr:OtherReinsurersBalancesGreaterThanOneMillionDollarsMember us-gaap:ReinsuranceRecoverableMember us-gaap:ReinsurerConcentrationRiskMember esgr:NonlifeRunoffSegmentMember 2018-12-31 0001363829 esgr:OtherReinsurersBalancesLessThanOneMillionDollarsMember us-gaap:ReinsuranceRecoverableMember us-gaap:ReinsurerConcentrationRiskMember esgr:NonlifeRunoffSegmentMember 2018-12-31 0001363829 us-gaap:ReinsuranceRecoverableMember us-gaap:ReinsurerConcentrationRiskMember esgr:StarStoneSegmentMember 2018-12-31 0001363829 esgr:TopTenReinsurersMember us-gaap:ReinsuranceRecoverableMember us-gaap:ReinsurerConcentrationRiskMember esgr:StarStoneSegmentMember 2018-12-31 0001363829 esgr:OtherReinsurersBalancesLessThanOneMillionDollarsMember us-gaap:ReinsuranceRecoverableMember us-gaap:ReinsurerConcentrationRiskMember 2018-01-01 2018-12-31 0001363829 esgr:TopTenReinsurersMember us-gaap:ReinsuranceRecoverableMember us-gaap:ReinsurerConcentrationRiskMember 2018-01-01 2018-12-31 0001363829 esgr:OtherReinsurersBalancesLessThanOneMillionDollarsMember us-gaap:ReinsuranceRecoverableMember us-gaap:ReinsurerConcentrationRiskMember esgr:StarStoneSegmentMember 2018-12-31 0001363829 esgr:OtherReinsurersBalancesLessThanOneMillionDollarsMember us-gaap:ReinsuranceRecoverableMember us-gaap:ReinsurerConcentrationRiskMember esgr:AtriumSegmentMember 2018-12-31 0001363829 esgr:TopTenReinsurersMember us-gaap:ReinsuranceRecoverableMember us-gaap:ReinsurerConcentrationRiskMember 2018-12-31 0001363829 esgr:OtherReinsurersBalancesGreaterThanOneMillionDollarsMember us-gaap:ReinsuranceRecoverableMember us-gaap:ReinsurerConcentrationRiskMember 2018-12-31 0001363829 esgr:TopTenReinsurersMember us-gaap:ReinsuranceRecoverableMember us-gaap:ReinsurerConcentrationRiskMember esgr:AtriumSegmentMember 2018-12-31 0001363829 esgr:OtherReinsurersBalancesLessThanOneMillionDollarsMember us-gaap:ReinsuranceRecoverableMember us-gaap:ReinsurerConcentrationRiskMember 2018-12-31 0001363829 us-gaap:ReinsuranceRecoverableMember us-gaap:ReinsurerConcentrationRiskMember 2018-12-31 0001363829 esgr:OtherReinsurersBalancesGreaterThanOneMillionDollarsMember us-gaap:ReinsuranceRecoverableMember us-gaap:ReinsurerConcentrationRiskMember esgr:StarStoneSegmentMember 2018-12-31 0001363829 esgr:OtherReinsurersBalancesGreaterThanOneMillionDollarsMember us-gaap:ReinsuranceRecoverableMember us-gaap:ReinsurerConcentrationRiskMember esgr:AtriumSegmentMember 2018-12-31 0001363829 us-gaap:ReinsuranceRecoverableMember us-gaap:ReinsurerConcentrationRiskMember esgr:NonlifeRunoffSegmentMember 2018-12-31 0001363829 esgr:OtherReinsurersBalancesGreaterThanOneMillionDollarsMember us-gaap:ReinsuranceRecoverableMember us-gaap:ReinsurerConcentrationRiskMember 2018-01-01 2018-12-31 0001363829 esgr:TopTenReinsurersFourNonRatedReinsurersMember us-gaap:ReinsurerConcentrationRiskMember 2018-12-31 0001363829 esgr:TopTenReinsurersFourNonRatedReinsurersMember us-gaap:ReinsurerConcentrationRiskMember 2019-03-31 0001363829 esgr:LloydsSyndicateMember us-gaap:ReinsurerConcentrationRiskMember us-gaap:EquityMethodInvesteeMember 2018-12-31 0001363829 esgr:LloydsSyndicateMember us-gaap:ReinsurerConcentrationRiskMember us-gaap:EquityMethodInvesteeMember 2019-03-31 0001363829 esgr:TopTenReinsurersRatedAMinusOrHigherMember us-gaap:ReinsurerConcentrationRiskMember 2019-03-31 0001363829 esgr:HannoverRuckSEMember us-gaap:ReinsurerConcentrationRiskMember us-gaap:EquityMethodInvesteeMember 2019-03-31 0001363829 esgr:TopTenReinsurersRatedAMinusOrHigherMember us-gaap:ReinsurerConcentrationRiskMember 2018-12-31 0001363829 esgr:TopTenReinsurersMember us-gaap:ReinsurerConcentrationRiskMember 2019-03-31 0001363829 esgr:HannoverRuckSEMember us-gaap:ReinsurerConcentrationRiskMember us-gaap:EquityMethodInvesteeMember 2018-12-31 0001363829 esgr:TopTenReinsurersMember us-gaap:ReinsuranceRecoverableMember us-gaap:ReinsurerConcentrationRiskMember 2019-01-01 2019-03-31 0001363829 us-gaap:ReinsuranceRecoverableMember us-gaap:ReinsurerConcentrationRiskMember 2019-03-31 0001363829 esgr:TopTenReinsurersMember us-gaap:ReinsuranceRecoverableMember us-gaap:ReinsurerConcentrationRiskMember esgr:AtriumSegmentMember 2019-03-31 0001363829 us-gaap:ReinsuranceRecoverableMember us-gaap:ReinsurerConcentrationRiskMember esgr:AtriumSegmentMember 2019-03-31 0001363829 esgr:OtherReinsurersBalancesLessThanOneMillionDollarsMember us-gaap:ReinsuranceRecoverableMember us-gaap:ReinsurerConcentrationRiskMember 2019-03-31 0001363829 us-gaap:ReinsuranceRecoverableMember us-gaap:ReinsurerConcentrationRiskMember esgr:StarStoneSegmentMember 2019-03-31 0001363829 esgr:TopTenReinsurersMember us-gaap:ReinsuranceRecoverableMember us-gaap:ReinsurerConcentrationRiskMember esgr:StarStoneSegmentMember 2019-03-31 0001363829 us-gaap:ReinsuranceRecoverableMember us-gaap:ReinsurerConcentrationRiskMember esgr:NonlifeRunoffSegmentMember 2019-03-31 0001363829 esgr:OtherReinsurersBalancesGreaterThanOneMillionDollarsMember us-gaap:ReinsuranceRecoverableMember us-gaap:ReinsurerConcentrationRiskMember esgr:NonlifeRunoffSegmentMember 2019-03-31 0001363829 esgr:TopTenReinsurersMember us-gaap:ReinsuranceRecoverableMember us-gaap:ReinsurerConcentrationRiskMember 2019-03-31 0001363829 esgr:OtherReinsurersBalancesLessThanOneMillionDollarsMember us-gaap:ReinsuranceRecoverableMember us-gaap:ReinsurerConcentrationRiskMember esgr:NonlifeRunoffSegmentMember 2019-03-31 0001363829 esgr:OtherReinsurersBalancesGreaterThanOneMillionDollarsMember us-gaap:ReinsuranceRecoverableMember us-gaap:ReinsurerConcentrationRiskMember 2019-01-01 2019-03-31 0001363829 esgr:OtherReinsurersBalancesGreaterThanOneMillionDollarsMember us-gaap:ReinsuranceRecoverableMember us-gaap:ReinsurerConcentrationRiskMember esgr:AtriumSegmentMember 2019-03-31 0001363829 esgr:OtherReinsurersBalancesLessThanOneMillionDollarsMember us-gaap:ReinsuranceRecoverableMember us-gaap:ReinsurerConcentrationRiskMember esgr:StarStoneSegmentMember 2019-03-31 0001363829 us-gaap:ReinsuranceRecoverableMember us-gaap:ReinsurerConcentrationRiskMember 2019-01-01 2019-03-31 0001363829 esgr:OtherReinsurersBalancesGreaterThanOneMillionDollarsMember us-gaap:ReinsuranceRecoverableMember us-gaap:ReinsurerConcentrationRiskMember esgr:StarStoneSegmentMember 2019-03-31 0001363829 esgr:OtherReinsurersBalancesLessThanOneMillionDollarsMember us-gaap:ReinsuranceRecoverableMember us-gaap:ReinsurerConcentrationRiskMember esgr:AtriumSegmentMember 2019-03-31 0001363829 esgr:TopTenReinsurersMember us-gaap:ReinsuranceRecoverableMember us-gaap:ReinsurerConcentrationRiskMember esgr:NonlifeRunoffSegmentMember 2019-03-31 0001363829 esgr:OtherReinsurersBalancesLessThanOneMillionDollarsMember us-gaap:ReinsuranceRecoverableMember us-gaap:ReinsurerConcentrationRiskMember 2019-01-01 2019-03-31 0001363829 esgr:OtherReinsurersBalancesGreaterThanOneMillionDollarsMember us-gaap:ReinsuranceRecoverableMember us-gaap:ReinsurerConcentrationRiskMember 2019-03-31 0001363829 esgr:ReinsurersRatedBelowAMinusMember us-gaap:CededCreditRiskSecuredMember 2018-12-31 0001363829 esgr:ReinsurersRatedBelowAMinusMember us-gaap:CededCreditRiskUnsecuredMember 2018-12-31 0001363829 esgr:ReinsurersRatedAMinusOrAboveMember 2018-12-31 0001363829 esgr:ReinsurersRatedAMinusOrAboveMember 2019-03-31 0001363829 esgr:ReinsurersRatedBelowAMinusMember us-gaap:CededCreditRiskSecuredMember 2019-03-31 0001363829 esgr:ReinsurersRatedBelowAMinusMember us-gaap:CededCreditRiskUnsecuredMember 2019-03-31 0001363829 esgr:CorporateAndReconcilingItemsMember 2018-12-31 0001363829 us-gaap:OperatingSegmentsMember esgr:AtriumSegmentMember 2018-12-31 0001363829 us-gaap:OperatingSegmentsMember esgr:NonlifeRunoffSegmentMember 2018-12-31 0001363829 us-gaap:OperatingSegmentsMember esgr:StarStoneSegmentMember 2018-12-31 0001363829 us-gaap:OperatingSegmentsMember esgr:AtriumSegmentMember 2019-03-31 0001363829 us-gaap:OperatingSegmentsMember esgr:NonlifeRunoffSegmentMember 2019-03-31 0001363829 esgr:CorporateAndReconcilingItemsMember 2019-03-31 0001363829 us-gaap:OperatingSegmentsMember esgr:StarStoneSegmentMember 2019-03-31 0001363829 esgr:NonLifeRunoffSegmentAtriumSegmentandStarstoneSegmentMember 2017-12-31 0001363829 esgr:NonLifeRunoffSegmentAtriumSegmentandStarstoneSegmentMember 2018-12-31 0001363829 us-gaap:OperatingSegmentsMember esgr:StarStoneSegmentMember 2019-01-01 2019-03-31 0001363829 esgr:CorporateAndReconcilingItemsMember 2019-01-01 2019-03-31 0001363829 us-gaap:OperatingSegmentsMember esgr:NonlifeRunoffSegmentMember 2019-01-01 2019-03-31 0001363829 us-gaap:OperatingSegmentsMember esgr:AtriumSegmentMember 2019-01-01 2019-03-31 0001363829 us-gaap:OperatingSegmentsMember esgr:AtriumSegmentMember 2018-01-01 2018-03-31 0001363829 us-gaap:OperatingSegmentsMember esgr:NonlifeRunoffSegmentMember 2018-01-01 2018-03-31 0001363829 us-gaap:OperatingSegmentsMember esgr:StarStoneSegmentMember 2018-01-01 2018-03-31 0001363829 esgr:NonlifeRunoffSegmentMember 2018-01-01 2018-03-31 0001363829 esgr:NonlifeRunoffSegmentMember 2017-12-31 0001363829 esgr:NonlifeRunoffSegmentMember 2018-03-31 0001363829 esgr:NonlifeRunoffSegmentMember 2019-01-01 2019-03-31 0001363829 esgr:WorkersCompensationInsuranceProductLineMember esgr:NonlifeRunoffSegmentMember 2018-01-01 2018-03-31 0001363829 esgr:WorkersCompensationInsuranceProductLineMember esgr:NonlifeRunoffSegmentMember 2019-01-01 2019-03-31 0001363829 esgr:AtriumSegmentMember 2018-01-01 2018-03-31 0001363829 esgr:AtriumSegmentMember 2018-03-31 0001363829 esgr:AtriumSegmentMember 2017-12-31 0001363829 esgr:AtriumSegmentMember 2019-01-01 2019-03-31 0001363829 esgr:StarStoneSegmentMember 2019-01-01 2019-03-31 0001363829 esgr:StarStoneSegmentMember 2018-01-01 2018-03-31 0001363829 esgr:StarStoneSegmentMember 2018-03-31 0001363829 esgr:StarStoneSegmentMember 2017-12-31 0001363829 us-gaap:ReinsuranceRecoverableMember us-gaap:FairValueMeasurementsRecurringMember esgr:InternalModelMember 2019-01-01 2019-03-31 0001363829 us-gaap:ReinsuranceRecoverableMember us-gaap:FairValueMeasurementsRecurringMember esgr:InternalModelMember 2018-01-01 2018-12-31 0001363829 esgr:LossesAndLossAdjustmentExpenseLiabilitiesMember us-gaap:FairValueMeasurementsRecurringMember esgr:InternalModelMember 2018-01-01 2018-12-31 0001363829 esgr:LossesAndLossAdjustmentExpenseLiabilitiesMember us-gaap:FairValueMeasurementsRecurringMember esgr:InternalModelMember 2019-01-01 2019-03-31 0001363829 us-gaap:FairValueMeasuredAtNetAssetValuePerShareMember us-gaap:FairValueMeasurementsRecurringMember esgr:CLOEquityMember us-gaap:OtherInvestmentsMember 2018-12-31 0001363829 us-gaap:FairValueMeasuredAtNetAssetValuePerShareMember us-gaap:FairValueMeasurementsRecurringMember 2018-12-31 0001363829 us-gaap:FairValueMeasurementsRecurringMember us-gaap:EquityFundsMember us-gaap:OtherInvestmentsMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:EquityFundsMember us-gaap:OtherInvestmentsMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember 2018-12-31 0001363829 us-gaap:FairValueMeasuredAtNetAssetValuePerShareMember us-gaap:FairValueMeasurementsRecurringMember esgr:OtherInvestmentsatFairValueMember us-gaap:OtherInvestmentsMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:MunicipalBondsMember us-gaap:FixedMaturitiesMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:OtherInvestmentsMember 2018-12-31 0001363829 us-gaap:FairValueMeasuredAtNetAssetValuePerShareMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:FixedIncomeFundsMember us-gaap:OtherInvestmentsMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:ReinsuranceRecoverableForPaidAndUnpaidClaimsAndClaimsAdjustmentsMember 2018-12-31 0001363829 us-gaap:FairValueMeasurementsRecurringMember esgr:HedgeFundsFixedIncomeMember us-gaap:OtherInvestmentsMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:CommercialMortgageBackedSecuritiesMember us-gaap:FixedMaturitiesMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:DerivativeFinancialInstrumentsAssetsMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:ResidentialMortgageBackedSecuritiesMember us-gaap:FixedMaturitiesMember 2018-12-31 0001363829 us-gaap:FairValueMeasurementsRecurringMember us-gaap:DerivativeFinancialInstrumentsLiabilitiesMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PrivateEquityFundsMember us-gaap:OtherInvestmentsMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:AssetBackedSecuritiesMember us-gaap:FixedMaturitiesMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember esgr:CLOEquityFundsMember us-gaap:OtherInvestmentsMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember esgr:FundsHeldDirectlyManagedMember us-gaap:FixedMaturitiesMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PrivateEquityFundsMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:OtherInvestmentsMember 2018-12-31 0001363829 us-gaap:FairValueMeasurementsRecurringMember us-gaap:DerivativeFinancialInstrumentsAssetsMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:FixedIncomeFundsMember us-gaap:OtherInvestmentsMember 2018-12-31 0001363829 us-gaap:FairValueMeasurementsRecurringMember esgr:DebtSecurityGovernmentOtherMember us-gaap:FixedMaturitiesMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember esgr:UnitedKingdomGovernmentAgenciesDebtSecuritiesMember us-gaap:FixedMaturitiesMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:DerivativeFinancialInstrumentsAssetsMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:CommercialMortgageBackedSecuritiesMember us-gaap:FixedMaturitiesMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:FixedIncomeFundsMember us-gaap:OtherInvestmentsMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PrivateEquityFundsMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember esgr:CLOEquityMember us-gaap:OtherInvestmentsMember 2018-12-31 0001363829 us-gaap:FairValueMeasurementsRecurringMember us-gaap:AssetBackedSecuritiesMember us-gaap:FixedMaturitiesMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember esgr:PublicEquityFundsMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember esgr:PrivateCreditFundsMember us-gaap:OtherInvestmentsMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:DerivativeFinancialInstrumentsLiabilitiesMember 2018-12-31 0001363829 us-gaap:FairValueMeasurementsRecurringMember esgr:CLOEquityFundsMember us-gaap:OtherInvestmentsMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember esgr:UnitedKingdomGovernmentAgenciesDebtSecuritiesMember us-gaap:FixedMaturitiesMember 2018-12-31 0001363829 us-gaap:FairValueMeasurementsRecurringMember us-gaap:PrivateEquityFundsMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:EquityFundsMember us-gaap:OtherInvestmentsMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:DerivativeFinancialInstrumentsAssetsMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:AssetBackedSecuritiesMember us-gaap:FixedMaturitiesMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember esgr:FundsHeldDirectlyManagedMember us-gaap:FixedMaturitiesMember 2018-12-31 0001363829 us-gaap:FairValueMeasuredAtNetAssetValuePerShareMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:OtherInvestmentsMember 2018-12-31 0001363829 us-gaap:FairValueMeasurementsRecurringMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember esgr:HedgeFundsFixedIncomeMember us-gaap:OtherInvestmentsMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:CommercialMortgageBackedSecuritiesMember us-gaap:FixedMaturitiesMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:FixedMaturitiesMember 2018-12-31 0001363829 us-gaap:FairValueMeasurementsRecurringMember us-gaap:USGovernmentAgenciesDebtSecuritiesMember us-gaap:FixedMaturitiesMember 2018-12-31 0001363829 us-gaap:FairValueMeasurementsRecurringMember esgr:UnitedKingdomGovernmentAgenciesDebtSecuritiesMember us-gaap:FixedMaturitiesMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember esgr:DebtSecurityGovernmentOtherMember us-gaap:FixedMaturitiesMember 2018-12-31 0001363829 us-gaap:FairValueMeasurementsRecurringMember esgr:CLOEquityMember us-gaap:OtherInvestmentsMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember esgr:HedgeFundsFixedIncomeMember us-gaap:OtherInvestmentsMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember esgr:PrivateCreditFundsMember us-gaap:OtherInvestmentsMember 2018-12-31 0001363829 us-gaap:FairValueMeasuredAtNetAssetValuePerShareMember us-gaap:FairValueMeasurementsRecurringMember esgr:HedgeFundsFixedIncomeMember us-gaap:OtherInvestmentsMember 2018-12-31 0001363829 us-gaap:FairValueMeasurementsRecurringMember us-gaap:PrivateEquityFundsMember us-gaap:OtherInvestmentsMember 2018-12-31 0001363829 us-gaap:FairValueMeasuredAtNetAssetValuePerShareMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:EquityFundsMember us-gaap:OtherInvestmentsMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember esgr:OtherInvestmentsatFairValueMember us-gaap:OtherInvestmentsMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember esgr:CLOEquityMember us-gaap:OtherInvestmentsMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:FixedIncomeFundsMember us-gaap:OtherInvestmentsMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember esgr:FundsHeldDirectlyManagedMember us-gaap:FixedMaturitiesMember 2018-12-31 0001363829 us-gaap:FairValueMeasurementsRecurringMember us-gaap:CorporateDebtSecuritiesMember us-gaap:FixedMaturitiesMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember esgr:PrivateCreditFundsMember us-gaap:OtherInvestmentsMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember esgr:OtherInvestmentsatFairValueMember us-gaap:OtherInvestmentsMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:DerivativeFinancialInstrumentsLiabilitiesMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember esgr:CLOEquityFundsMember us-gaap:OtherInvestmentsMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:ReinsuranceRecoverableForPaidAndUnpaidClaimsAndClaimsAdjustmentsMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember esgr:OtherInvestmentsatFairValueMember us-gaap:OtherInvestmentsMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:MunicipalBondsMember us-gaap:FixedMaturitiesMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember esgr:CLOEquityMember us-gaap:OtherInvestmentsMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:MunicipalBondsMember us-gaap:FixedMaturitiesMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember esgr:DebtSecurityGovernmentOtherMember us-gaap:FixedMaturitiesMember 2018-12-31 0001363829 us-gaap:FairValueMeasuredAtNetAssetValuePerShareMember us-gaap:FairValueMeasurementsRecurringMember esgr:CLOEquityFundsMember us-gaap:OtherInvestmentsMember 2018-12-31 0001363829 us-gaap:FairValueMeasurementsRecurringMember us-gaap:FixedIncomeFundsMember us-gaap:OtherInvestmentsMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:USGovernmentAgenciesDebtSecuritiesMember us-gaap:FixedMaturitiesMember 2018-12-31 0001363829 us-gaap:FairValueMeasurementsRecurringMember us-gaap:CommercialMortgageBackedSecuritiesMember us-gaap:FixedMaturitiesMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:FixedMaturitiesMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:OtherInvestmentsMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:CorporateDebtSecuritiesMember us-gaap:FixedMaturitiesMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:CorporateDebtSecuritiesMember us-gaap:FixedMaturitiesMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember esgr:HedgeFundsFixedIncomeMember us-gaap:OtherInvestmentsMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember esgr:PublicEquityFundsMember 2018-12-31 0001363829 us-gaap:FairValueMeasurementsRecurringMember esgr:FundsHeldDirectlyManagedMember us-gaap:FixedMaturitiesMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:USGovernmentAgenciesDebtSecuritiesMember us-gaap:FixedMaturitiesMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:ResidentialMortgageBackedSecuritiesMember us-gaap:FixedMaturitiesMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PrivateEquityFundsMember us-gaap:OtherInvestmentsMember 2018-12-31 0001363829 us-gaap:FairValueMeasurementsRecurringMember esgr:PrivateCreditFundsMember us-gaap:OtherInvestmentsMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:DerivativeFinancialInstrumentsLiabilitiesMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember esgr:PublicEquityFundsMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:AssetBackedSecuritiesMember us-gaap:FixedMaturitiesMember 2018-12-31 0001363829 us-gaap:FairValueMeasuredAtNetAssetValuePerShareMember us-gaap:FairValueMeasurementsRecurringMember esgr:PrivateCreditFundsMember us-gaap:OtherInvestmentsMember 2018-12-31 0001363829 us-gaap:FairValueMeasuredAtNetAssetValuePerShareMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PrivateEquityFundsMember us-gaap:OtherInvestmentsMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:FixedMaturitiesMember 2018-12-31 0001363829 us-gaap:FairValueMeasurementsRecurringMember us-gaap:ResidentialMortgageBackedSecuritiesMember us-gaap:FixedMaturitiesMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:ReinsuranceRecoverableForPaidAndUnpaidClaimsAndClaimsAdjustmentsMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:USGovernmentAgenciesDebtSecuritiesMember us-gaap:FixedMaturitiesMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:ResidentialMortgageBackedSecuritiesMember us-gaap:FixedMaturitiesMember 2018-12-31 0001363829 us-gaap:FairValueMeasurementsRecurringMember us-gaap:MunicipalBondsMember us-gaap:FixedMaturitiesMember 2018-12-31 0001363829 us-gaap:FairValueMeasurementsRecurringMember esgr:OtherInvestmentsatFairValueMember us-gaap:OtherInvestmentsMember 2018-12-31 0001363829 us-gaap:FairValueMeasurementsRecurringMember us-gaap:OtherInvestmentsMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember esgr:CLOEquityFundsMember us-gaap:OtherInvestmentsMember 2018-12-31 0001363829 us-gaap:FairValueMeasurementsRecurringMember us-gaap:ReinsuranceRecoverableForPaidAndUnpaidClaimsAndClaimsAdjustmentsMember 2018-12-31 0001363829 us-gaap:FairValueMeasurementsRecurringMember us-gaap:FixedMaturitiesMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:CorporateDebtSecuritiesMember us-gaap:FixedMaturitiesMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PrivateEquityFundsMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PrivateEquityFundsMember us-gaap:OtherInvestmentsMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember esgr:DebtSecurityGovernmentOtherMember us-gaap:FixedMaturitiesMember 2018-12-31 0001363829 us-gaap:FairValueMeasurementsRecurringMember esgr:PublicEquityFundsMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:EquityFundsMember us-gaap:OtherInvestmentsMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember esgr:UnitedKingdomGovernmentAgenciesDebtSecuritiesMember us-gaap:FixedMaturitiesMember 2018-12-31 0001363829 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember esgr:OtherInvestmentsatFairValueMember us-gaap:OtherInvestmentsMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:FixedMaturitiesMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:DerivativeFinancialInstrumentsLiabilitiesMember 2019-03-31 0001363829 us-gaap:FairValueMeasuredAtNetAssetValuePerShareMember us-gaap:FairValueMeasurementsRecurringMember esgr:OtherInvestmentsatFairValueMember us-gaap:OtherInvestmentsMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember esgr:CLOEquityFundsMember us-gaap:OtherInvestmentsMember 2019-03-31 0001363829 us-gaap:FairValueMeasurementsRecurringMember us-gaap:CorporateDebtSecuritiesMember us-gaap:FixedMaturitiesMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember esgr:UnitedKingdomGovernmentAgenciesDebtSecuritiesMember us-gaap:FixedMaturitiesMember 2019-03-31 0001363829 us-gaap:FairValueMeasuredAtNetAssetValuePerShareMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:FixedIncomeFundsMember us-gaap:OtherInvestmentsMember 2019-03-31 0001363829 us-gaap:FairValueMeasuredAtNetAssetValuePerShareMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:PrivateEquityFundsMember us-gaap:OtherInvestmentsMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:AssetBackedSecuritiesMember us-gaap:FixedMaturitiesMember 2019-03-31 0001363829 us-gaap:FairValueMeasurementsRecurringMember esgr:PrivateCreditFundsMember us-gaap:OtherInvestmentsMember 2019-03-31 0001363829 us-gaap:FairValueMeasurementsRecurringMember esgr:CLOEquityFundsMember us-gaap:OtherInvestmentsMember 2019-03-31 0001363829 us-gaap:FairValueMeasuredAtNetAssetValuePerShareMember us-gaap:FairValueMeasurementsRecurringMember esgr:CLOEquityFundsMember us-gaap:OtherInvestmentsMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:FixedIncomeFundsMember us-gaap:OtherInvestmentsMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:CommercialMortgageBackedSecuritiesMember us-gaap:FixedMaturitiesMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:CorporateDebtSecuritiesMember us-gaap:FixedMaturitiesMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember 2019-03-31 0001363829 us-gaap:FairValueMeasuredAtNetAssetValuePerShareMember us-gaap:FairValueMeasurementsRecurringMember 2019-03-31 0001363829 us-gaap:FairValueMeasurementsRecurringMember 2019-03-31 0001363829 us-gaap:FairValueMeasurementsRecurringMember us-gaap:ResidentialMortgageBackedSecuritiesMember us-gaap:FixedMaturitiesMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:OtherInvestmentsMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:USGovernmentAgenciesDebtSecuritiesMember us-gaap:FixedMaturitiesMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember esgr:PublicEquityFundsMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:CommercialMortgageBackedSecuritiesMember us-gaap:FixedMaturitiesMember 2019-03-31 0001363829 us-gaap:FairValueMeasurementsRecurringMember us-gaap:PrivateEquityFundsMember us-gaap:OtherInvestmentsMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:ResidentialMortgageBackedSecuritiesMember us-gaap:FixedMaturitiesMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:FixedIncomeFundsMember us-gaap:OtherInvestmentsMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:DerivativeFinancialInstrumentsLiabilitiesMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:DerivativeFinancialInstrumentsAssetsMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PrivateEquityFundsMember us-gaap:OtherInvestmentsMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:ResidentialMortgageBackedSecuritiesMember us-gaap:FixedMaturitiesMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PrivateEquityFundsMember us-gaap:OtherInvestmentsMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:EquityFundsMember us-gaap:OtherInvestmentsMember 2019-03-31 0001363829 us-gaap:FairValueMeasurementsRecurringMember esgr:CLOEquityMember us-gaap:OtherInvestmentsMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember esgr:CLOEquityFundsMember us-gaap:OtherInvestmentsMember 2019-03-31 0001363829 us-gaap:FairValueMeasurementsRecurringMember us-gaap:DerivativeFinancialInstrumentsLiabilitiesMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:ReinsuranceRecoverableForPaidAndUnpaidClaimsAndClaimsAdjustmentsMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember esgr:PublicEquityFundsMember 2019-03-31 0001363829 us-gaap:FairValueMeasurementsRecurringMember us-gaap:CommercialMortgageBackedSecuritiesMember us-gaap:FixedMaturitiesMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:ReinsuranceRecoverableForPaidAndUnpaidClaimsAndClaimsAdjustmentsMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember esgr:CLOEquityMember us-gaap:OtherInvestmentsMember 2019-03-31 0001363829 us-gaap:FairValueMeasurementsRecurringMember us-gaap:PrivateEquityFundsMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember esgr:OtherInvestmentsatFairValueMember us-gaap:OtherInvestmentsMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:DerivativeFinancialInstrumentsAssetsMember 2019-03-31 0001363829 us-gaap:FairValueMeasurementsRecurringMember esgr:UnitedKingdomGovernmentAgenciesDebtSecuritiesMember us-gaap:FixedMaturitiesMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PrivateEquityFundsMember us-gaap:OtherInvestmentsMember 2019-03-31 0001363829 us-gaap:FairValueMeasurementsRecurringMember esgr:OtherInvestmentsatFairValueMember us-gaap:OtherInvestmentsMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:ReinsuranceRecoverableForPaidAndUnpaidClaimsAndClaimsAdjustmentsMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PrivateEquityFundsMember 2019-03-31 0001363829 us-gaap:FairValueMeasuredAtNetAssetValuePerShareMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:EquityFundsMember us-gaap:OtherInvestmentsMember 2019-03-31 0001363829 us-gaap:FairValueMeasurementsRecurringMember us-gaap:DerivativeFinancialInstrumentsAssetsMember 2019-03-31 0001363829 us-gaap:FairValueMeasurementsRecurringMember us-gaap:ReinsuranceRecoverableForPaidAndUnpaidClaimsAndClaimsAdjustmentsMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember esgr:CLOEquityFundsMember us-gaap:OtherInvestmentsMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PrivateEquityFundsMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:DerivativeFinancialInstrumentsAssetsMember 2019-03-31 0001363829 us-gaap:FairValueMeasurementsRecurringMember us-gaap:OtherInvestmentsMember 2019-03-31 0001363829 us-gaap:FairValueMeasurementsRecurringMember us-gaap:FixedIncomeFundsMember us-gaap:OtherInvestmentsMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:PrivateEquityFundsMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember esgr:PrivateCreditFundsMember us-gaap:OtherInvestmentsMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:USGovernmentAgenciesDebtSecuritiesMember us-gaap:FixedMaturitiesMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:MunicipalBondsMember us-gaap:FixedMaturitiesMember 2019-03-31 0001363829 us-gaap:FairValueMeasurementsRecurringMember esgr:PublicEquityFundsMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember esgr:HedgeFundsFixedIncomeMember us-gaap:OtherInvestmentsMember 2019-03-31 0001363829 us-gaap:FairValueMeasuredAtNetAssetValuePerShareMember us-gaap:FairValueMeasurementsRecurringMember esgr:PrivateCreditFundsMember us-gaap:OtherInvestmentsMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:CommercialMortgageBackedSecuritiesMember us-gaap:FixedMaturitiesMember 2019-03-31 0001363829 us-gaap:FairValueMeasurementsRecurringMember us-gaap:USGovernmentAgenciesDebtSecuritiesMember us-gaap:FixedMaturitiesMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:OtherInvestmentsMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:ResidentialMortgageBackedSecuritiesMember us-gaap:FixedMaturitiesMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:AssetBackedSecuritiesMember us-gaap:FixedMaturitiesMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember esgr:CLOEquityMember us-gaap:OtherInvestmentsMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:USGovernmentAgenciesDebtSecuritiesMember us-gaap:FixedMaturitiesMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:EquityFundsMember us-gaap:OtherInvestmentsMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:MunicipalBondsMember us-gaap:FixedMaturitiesMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:DerivativeFinancialInstrumentsLiabilitiesMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember esgr:HedgeFundsFixedIncomeMember us-gaap:OtherInvestmentsMember 2019-03-31 0001363829 us-gaap:FairValueMeasurementsRecurringMember us-gaap:FixedMaturitiesMember 2019-03-31 0001363829 us-gaap:FairValueMeasurementsRecurringMember us-gaap:MunicipalBondsMember us-gaap:FixedMaturitiesMember 2019-03-31 0001363829 us-gaap:FairValueMeasuredAtNetAssetValuePerShareMember us-gaap:FairValueMeasurementsRecurringMember esgr:HedgeFundsFixedIncomeMember us-gaap:OtherInvestmentsMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:FixedIncomeFundsMember us-gaap:OtherInvestmentsMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember esgr:PrivateCreditFundsMember us-gaap:OtherInvestmentsMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember esgr:CLOEquityMember us-gaap:OtherInvestmentsMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember esgr:FundsHeldDirectlyManagedMember us-gaap:FixedMaturitiesMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember esgr:FundsHeldDirectlyManagedMember us-gaap:FixedMaturitiesMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember esgr:DebtSecurityGovernmentOtherMember us-gaap:FixedMaturitiesMember 2019-03-31 0001363829 us-gaap:FairValueMeasuredAtNetAssetValuePerShareMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:OtherInvestmentsMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:CorporateDebtSecuritiesMember us-gaap:FixedMaturitiesMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember esgr:HedgeFundsFixedIncomeMember us-gaap:OtherInvestmentsMember 2019-03-31 0001363829 us-gaap:FairValueMeasurementsRecurringMember us-gaap:EquityFundsMember us-gaap:OtherInvestmentsMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember esgr:DebtSecurityGovernmentOtherMember us-gaap:FixedMaturitiesMember 2019-03-31 0001363829 us-gaap:FairValueMeasurementsRecurringMember esgr:DebtSecurityGovernmentOtherMember us-gaap:FixedMaturitiesMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember esgr:PublicEquityFundsMember 2019-03-31 0001363829 us-gaap:FairValueMeasurementsRecurringMember us-gaap:AssetBackedSecuritiesMember us-gaap:FixedMaturitiesMember 2019-03-31 0001363829 us-gaap:FairValueMeasurementsRecurringMember esgr:FundsHeldDirectlyManagedMember us-gaap:FixedMaturitiesMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:CorporateDebtSecuritiesMember us-gaap:FixedMaturitiesMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:MunicipalBondsMember us-gaap:FixedMaturitiesMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember esgr:OtherInvestmentsatFairValueMember us-gaap:OtherInvestmentsMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember esgr:FundsHeldDirectlyManagedMember us-gaap:FixedMaturitiesMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember esgr:UnitedKingdomGovernmentAgenciesDebtSecuritiesMember us-gaap:FixedMaturitiesMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember esgr:PrivateCreditFundsMember us-gaap:OtherInvestmentsMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:FixedMaturitiesMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:EquityFundsMember us-gaap:OtherInvestmentsMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:AssetBackedSecuritiesMember us-gaap:FixedMaturitiesMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember esgr:DebtSecurityGovernmentOtherMember us-gaap:FixedMaturitiesMember 2019-03-31 0001363829 us-gaap:FairValueMeasuredAtNetAssetValuePerShareMember us-gaap:FairValueMeasurementsRecurringMember esgr:CLOEquityMember us-gaap:OtherInvestmentsMember 2019-03-31 0001363829 us-gaap:FairValueMeasurementsRecurringMember esgr:HedgeFundsFixedIncomeMember us-gaap:OtherInvestmentsMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember esgr:UnitedKingdomGovernmentAgenciesDebtSecuritiesMember us-gaap:FixedMaturitiesMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:OtherInvestmentsMember 2019-03-31 0001363829 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember us-gaap:FixedMaturitiesMember 2019-03-31 0001363829 us-gaap:ResidentialMortgageBackedSecuritiesMember 2018-03-31 0001363829 us-gaap:CorporateDebtSecuritiesMember 2018-03-31 0001363829 us-gaap:OtherInvestmentsMember 2018-03-31 0001363829 us-gaap:AssetBackedSecuritiesMember 2018-03-31 0001363829 us-gaap:ResidentialMortgageBackedSecuritiesMember 2018-01-01 2018-03-31 0001363829 us-gaap:AssetBackedSecuritiesMember 2018-01-01 2018-03-31 0001363829 us-gaap:CorporateDebtSecuritiesMember 2018-01-01 2018-03-31 0001363829 us-gaap:CommercialMortgageBackedSecuritiesMember 2018-01-01 2018-03-31 0001363829 us-gaap:ResidentialMortgageBackedSecuritiesMember 2017-12-31 0001363829 us-gaap:CommercialMortgageBackedSecuritiesMember 2018-03-31 0001363829 us-gaap:CommercialMortgageBackedSecuritiesMember 2017-12-31 0001363829 us-gaap:OtherInvestmentsMember 2017-12-31 0001363829 us-gaap:CorporateDebtSecuritiesMember 2017-12-31 0001363829 us-gaap:AssetBackedSecuritiesMember 2017-12-31 0001363829 us-gaap:CorporateDebtSecuritiesMember 2019-01-01 2019-03-31 0001363829 us-gaap:EquitySecuritiesMember 2018-12-31 0001363829 us-gaap:AssetBackedSecuritiesMember 2019-01-01 2019-03-31 0001363829 us-gaap:CommercialMortgageBackedSecuritiesMember 2019-01-01 2019-03-31 0001363829 us-gaap:AssetBackedSecuritiesMember 2018-12-31 0001363829 us-gaap:CommercialMortgageBackedSecuritiesMember 2018-12-31 0001363829 us-gaap:OtherInvestmentsMember 2018-12-31 0001363829 us-gaap:CorporateDebtSecuritiesMember 2019-03-31 0001363829 us-gaap:CommercialMortgageBackedSecuritiesMember 2019-03-31 0001363829 us-gaap:EquitySecuritiesMember 2019-03-31 0001363829 us-gaap:AssetBackedSecuritiesMember 2019-03-31 0001363829 us-gaap:CorporateDebtSecuritiesMember 2018-12-31 0001363829 us-gaap:OtherInvestmentsMember 2019-03-31 0001363829 esgr:MeasurementInputDurationMember 2019-01-01 2019-03-31 0001363829 esgr:MeasurementInputDurationMember 2018-01-01 2018-03-31 0001363829 esgr:MeasurementInputCorporateBondYieldMember 2019-01-01 2019-03-31 0001363829 esgr:MeasurementInputCorporateBondYieldMember 2018-01-01 2018-03-31 0001363829 us-gaap:ReinsuranceRecoverableMember 2018-01-01 2018-03-31 0001363829 esgr:LossesAndLossAdjustmentExpenseLiabilitiesMember 2019-01-01 2019-03-31 0001363829 esgr:LossesAndLossAdjustmentExpenseLiabilitiesMember 2018-01-01 2018-03-31 0001363829 us-gaap:ReinsuranceRecoverableMember 2019-01-01 2019-03-31 0001363829 esgr:LossesAndLossAdjustmentExpenseLiabilitiesMember 2018-03-31 0001363829 us-gaap:ReinsuranceRecoverableMember 2018-12-31 0001363829 us-gaap:ReinsuranceRecoverableMember 2017-12-31 0001363829 esgr:LossesAndLossAdjustmentExpenseLiabilitiesMember 2018-12-31 0001363829 esgr:LossesAndLossAdjustmentExpenseLiabilitiesMember 2017-12-31 0001363829 us-gaap:ReinsuranceRecoverableMember 2018-03-31 0001363829 esgr:LossesAndLossAdjustmentExpenseLiabilitiesMember 2019-03-31 0001363829 us-gaap:ReinsuranceRecoverableMember 2019-03-31 0001363829 esgr:LossesAndLossAdjustmentExpenseLiabilitiesMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:MeasurementInputEntityCreditRiskMember esgr:InternalModelMember 2018-01-01 2018-12-31 0001363829 esgr:LossesAndLossAdjustmentExpenseLiabilitiesMember us-gaap:FairValueMeasurementsRecurringMember us-gaap:MeasurementInputEntityCreditRiskMember esgr:InternalModelMember 2019-01-01 2019-03-31 0001363829 esgr:SeniorNotesDue2022Member us-gaap:SeniorNotesMember 2019-03-31 0001363829 esgr:CorporateAndReconcilingItemsMember 2018-01-01 2018-03-31 0001363829 esgr:LloydsSyndicateCapacityMember 2018-12-31 0001363829 us-gaap:TradeDressMember 2019-03-31 0001363829 us-gaap:LicensingAgreementsMember 2019-03-31 0001363829 us-gaap:DevelopedTechnologyRightsMember 2019-03-31 0001363829 us-gaap:DistributionRightsMember 2018-12-31 0001363829 us-gaap:DevelopedTechnologyRightsMember 2018-12-31 0001363829 us-gaap:DistributionRightsMember 2019-03-31 0001363829 us-gaap:TradeDressMember 2018-12-31 0001363829 us-gaap:ContractBasedIntangibleAssetsMember 2019-03-31 0001363829 us-gaap:LicensingAgreementsMember 2018-12-31 0001363829 us-gaap:ContractBasedIntangibleAssetsMember 2018-12-31 0001363829 esgr:LloydsSyndicateCapacityMember 2019-03-31 0001363829 esgr:A2018EGLTermLoanFacilityMember us-gaap:LineOfCreditMember 2018-12-31 0001363829 esgr:A2018EGLRevolvingCreditFacilityMember us-gaap:LineOfCreditMember 2019-03-31 0001363829 esgr:A2018EGLRevolvingCreditFacilityMember us-gaap:LineOfCreditMember 2019-01-01 2019-03-31 0001363829 esgr:SeniorNotesDue2022Member us-gaap:SeniorNotesMember 2018-12-31 0001363829 esgr:A2018EGLTermLoanFacilityMember us-gaap:LineOfCreditMember 2019-01-01 2019-03-31 0001363829 esgr:A2018EGLTermLoanFacilityMember us-gaap:LineOfCreditMember 2019-03-31 0001363829 esgr:SeniorNotesDue2022Member us-gaap:SeniorNotesMember 2019-01-01 2019-03-31 0001363829 esgr:A2018EGLRevolvingCreditFacilityMember us-gaap:LineOfCreditMember 2018-12-31 0001363829 esgr:A2018EGLRevolvingCreditFacilityMember us-gaap:LineOfCreditMember 2014-09-16 2014-09-16 0001363829 esgr:A2018EGLTermLoanFacilityMember us-gaap:LineOfCreditMember 2018-12-27 2018-12-27 0001363829 esgr:SeniorNotesDue2022Member us-gaap:SeniorNotesMember 2017-03-10 0001363829 esgr:SeniorNotesDue2022Member us-gaap:SeniorNotesMember 2017-03-10 2017-03-10 0001363829 esgr:A2018EGLRevolvingCreditFacilityMember us-gaap:LineOfCreditMember 2018-08-16 0001363829 esgr:A2018EGLRevolvingCreditFacilityMember us-gaap:LineOfCreditMember us-gaap:SubsequentEventMember 2019-04-01 2019-05-08 0001363829 esgr:A2018EGLRevolvingCreditFacilityMember us-gaap:LineOfCreditMember us-gaap:SubsequentEventMember 2019-05-08 0001363829 esgr:A2018EGLTermLoanFacilityMember us-gaap:LineOfCreditMember 2018-12-27 0001363829 us-gaap:LetterOfCreditMember esgr:FALFacilityMember us-gaap:LineOfCreditMember 2019-02-12 0001363829 us-gaap:LetterOfCreditMember esgr:FALFacilityMember us-gaap:LineOfCreditMember 2018-02-08 0001363829 us-gaap:LetterOfCreditMember esgr:FALFacilityMember us-gaap:LineOfCreditMember 2019-03-31 0001363829 srt:SubsidiariesMember esgr:DowlingMember 2018-12-31 0001363829 srt:SubsidiariesMember esgr:TridentMember 2018-12-31 0001363829 srt:SubsidiariesMember esgr:TridentMember 2019-03-31 0001363829 srt:SubsidiariesMember esgr:DowlingMember 2019-03-31 0001363829 us-gaap:SeriesEPreferredStockMember us-gaap:SubsequentEventMember 2019-05-05 2019-05-05 0001363829 us-gaap:SeriesDPreferredStockMember 2019-02-21 2019-02-21 0001363829 us-gaap:SeriesDPreferredStockMember us-gaap:SubsequentEventMember 2019-05-05 2019-05-05 0001363829 us-gaap:SeriesEPreferredStockMember 2019-02-21 2019-02-21 0001363829 esgr:TimeBasedRestrictedStockMember esgr:LongTermIncentivePlansMember 2018-01-01 2018-03-31 0001363829 us-gaap:RestrictedStockUnitsRSUMember esgr:DeferredCompensationPlanMember us-gaap:DirectorMember 2018-01-01 2018-03-31 0001363829 us-gaap:StockAppreciationRightsSARSMember 2019-01-01 2019-03-31 0001363829 us-gaap:EmployeeStockMember 2018-01-01 2018-03-31 0001363829 us-gaap:EmployeeStockMember 2019-01-01 2019-03-31 0001363829 us-gaap:PerformanceSharesMember 2018-01-01 2018-03-31 0001363829 esgr:RestrictedStockandRestrictedStockUnitsMember 2018-01-01 2018-03-31 0001363829 esgr:RestrictedStockandRestrictedStockUnitsMember 2019-01-01 2019-03-31 0001363829 us-gaap:RestrictedStockUnitsRSUMember esgr:DeferredCompensationPlanMember us-gaap:DirectorMember 2019-01-01 2019-03-31 0001363829 us-gaap:PerformanceSharesMember 2019-01-01 2019-03-31 0001363829 us-gaap:StockAppreciationRightsSARSMember 2018-01-01 2018-03-31 0001363829 esgr:TimeBasedRestrictedStockMember esgr:LongTermIncentivePlansMember 2019-01-01 2019-03-31 0001363829 esgr:TridentMember srt:AffiliatedEntityMember 2013-11-06 0001363829 esgr:StonePointMember srt:AffiliatedEntityMember 2019-03-31 0001363829 esgr:TridentMember srt:AffiliatedEntityMember 2012-05-01 2012-07-31 0001363829 esgr:TridentMember esgr:NorthBayMember 2018-12-26 2018-12-26 0001363829 esgr:NorthBayShareholdersMember esgr:NorthBayMember 2018-12-26 2018-12-26 0001363829 esgr:TridentMember srt:AffiliatedEntityMember 2019-03-31 0001363829 esgr:TridentMember srt:AffiliatedEntityMember 2018-12-31 0001363829 esgr:MitchellInternationalMember srt:AffiliatedEntityMember 2018-12-31 0001363829 esgr:TridentMember esgr:RegisteredInvestmentCompanyMember srt:AffiliatedEntityMember 2019-01-01 2019-03-31 0001363829 esgr:SoundPointCapitalMember esgr:CLOEquityMember srt:AffiliatedEntityMember 2018-01-01 2018-03-31 0001363829 esgr:SoundPointCapitalMember esgr:ManagementFeeMember srt:AffiliatedEntityMember 2019-01-01 2019-03-31 0001363829 esgr:SoundPointCapitalMember esgr:ManagementFeeMember srt:AffiliatedEntityMember 2018-01-01 2018-03-31 0001363829 esgr:SoundPointCapitalMember esgr:CLOEquityMember srt:AffiliatedEntityMember 2019-01-01 2019-03-31 0001363829 esgr:StonePointAndAffiliatedEntitiesMember srt:AffiliatedEntityMember 2019-01-01 2019-03-31 0001363829 esgr:EaglePointCreditandPRIMACapitalAdvisorsMember esgr:ManagementFeeMember srt:AffiliatedEntityMember 2019-01-01 2019-03-31 0001363829 esgr:TridentMember esgr:FundInvestmentsMember srt:AffiliatedEntityMember 2018-01-01 2018-03-31 0001363829 esgr:TridentMember esgr:RegisteredInvestmentCompanyMember srt:AffiliatedEntityMember 2018-01-01 2018-03-31 0001363829 esgr:SoundPointCapitalMember srt:AffiliatedEntityMember 2018-01-01 2018-03-31 0001363829 esgr:StonePointAndAffiliatedEntitiesMember srt:AffiliatedEntityMember 2018-01-01 2018-03-31 0001363829 esgr:SoundPointCapitalMember srt:AffiliatedEntityMember 2019-01-01 2019-03-31 0001363829 esgr:TridentMember esgr:FundInvestmentsMember srt:AffiliatedEntityMember 2019-01-01 2019-03-31 0001363829 esgr:EaglePointCreditandPRIMACapitalAdvisorsMember esgr:ManagementFeeMember srt:AffiliatedEntityMember 2018-01-01 2018-03-31 0001363829 esgr:EaglePointCreditandPRIMACapitalAdvisorsMember srt:AffiliatedEntityMember 2018-12-31 0001363829 esgr:SoundPointCapitalMember srt:AffiliatedEntityMember 2019-03-31 0001363829 srt:AffiliatedEntityMember 2019-03-31 0001363829 esgr:SoundPointCapitalMember esgr:CLOEquityMember srt:AffiliatedEntityMember 2019-03-31 0001363829 esgr:SoundPointCapitalMember srt:AffiliatedEntityMember 2018-12-31 0001363829 esgr:SoundPointCapitalMember esgr:CLOEquityMember srt:AffiliatedEntityMember 2018-12-31 0001363829 srt:AffiliatedEntityMember 2018-12-31 0001363829 esgr:EaglePointCreditandPRIMACapitalAdvisorsMember srt:AffiliatedEntityMember 2019-03-31 0001363829 esgr:MinorityShareholderMember esgr:KaylaReHoldingsLtdMember esgr:CommonClassEMember 2018-05-14 2018-05-14 0001363829 esgr:KaylaReHoldingsLtdMember 2018-05-14 2018-05-14 0001363829 esgr:KaylaReHoldingsLtdMember 2016-12-15 2016-12-15 0001363829 esgr:KaylaReHoldingsLtdMember us-gaap:CommonStockMember 2018-05-14 2018-05-14 0001363829 esgr:HillhouseMember esgr:KaylaReHoldingsLtdMember esgr:CommonClassEMember 2018-05-14 2018-05-14 0001363829 esgr:KaylaReHoldingsLtdMember 2018-05-13 0001363829 esgr:TridentMember esgr:KaylaReHoldingsLtdMember us-gaap:CommonStockMember 2018-05-14 2018-05-14 0001363829 esgr:KaylaReHoldingsLtdMember esgr:CommonClassEMember 2018-05-14 2018-05-14 0001363829 esgr:HillhouseMember esgr:KaylaReHoldingsLtdMember us-gaap:CommonStockMember 2018-05-14 2018-05-14 0001363829 esgr:StarstoneMember esgr:KaylaReHoldingsLtdMember 2019-01-01 2019-03-31 0001363829 esgr:FitzwilliamMember srt:SubsidiariesMember esgr:KaylaReHoldingsLtdMember 2016-12-31 0001363829 esgr:KaylaReTransactionsWithStarstoneMember 2018-01-01 2018-03-31 0001363829 esgr:KaylaReHoldingsLtdMember srt:AffiliatedEntityMember 2018-01-01 2018-03-31 0001363829 esgr:HillhouseAffiliatesMember srt:AffiliatedEntityMember 2019-03-31 0001363829 esgr:HillhouseInReFundL.P.Member esgr:NorthAmericanEquitiesMember srt:AffiliatedEntityMember 2019-01-01 2019-03-31 0001363829 esgr:InReFundMember esgr:HillhouseMember srt:AffiliatedEntityMember 2019-03-31 0001363829 esgr:HillhouseInReFundL.P.Member esgr:InternationalEquitiesMember srt:AffiliatedEntityMember 2019-01-01 2019-03-31 0001363829 esgr:HillhouseInReFundL.P.Member esgr:FinancingDerivativesAndOtherItemsMember srt:AffiliatedEntityMember 2019-01-01 2019-03-31 0001363829 esgr:HillhouseInReFundL.P.Member us-gaap:FixedIncomeSecuritiesMember srt:AffiliatedEntityMember 2019-01-01 2019-03-31 0001363829 esgr:HillhouseMember srt:AffiliatedEntityMember 2019-01-01 2019-03-31 0001363829 esgr:OtherFundsMember esgr:HillhouseMember srt:AffiliatedEntityMember 2018-12-31 0001363829 esgr:HillhouseMember 2018-12-31 0001363829 esgr:HillhouseMember srt:AffiliatedEntityMember 2019-03-31 0001363829 esgr:HillhouseMember 2019-03-31 0001363829 esgr:InReFundMember esgr:HillhouseMember srt:AffiliatedEntityMember 2018-12-31 0001363829 esgr:KaylaReHoldingsLtdMember esgr:HillhouseMember srt:AffiliatedEntityMember 2018-12-31 0001363829 esgr:HillhouseMember srt:AffiliatedEntityMember 2018-12-31 0001363829 esgr:OtherFundsMember esgr:HillhouseMember srt:AffiliatedEntityMember 2019-03-31 0001363829 esgr:KaylaReHoldingsLtdMember esgr:HillhouseMember srt:AffiliatedEntityMember 2019-03-31 0001363829 esgr:MonumentMember 2016-10-01 2016-10-31 0001363829 esgr:StarstoneMember esgr:ClearSpringMember 2019-03-31 0001363829 esgr:StarstoneMember esgr:ClearSpringMember 2018-12-31 0001363829 esgr:ClearSpringMember us-gaap:EquityMethodInvesteeMember 2019-03-31 0001363829 2017-01-01 0001363829 esgr:StarstoneMember esgr:CavelloBayMember 2017-01-01 2017-01-01 0001363829 esgr:StarstoneMember esgr:ClearSpringMember 2017-01-01 2017-01-01 0001363829 esgr:ClearSpringMember us-gaap:EquityMethodInvesteeMember 2018-12-31 0001363829 esgr:CavelloBayMember esgr:ClearSpringMember 2019-03-31 0001363829 esgr:CavelloBayMember esgr:ClearSpringMember 2018-12-31 0001363829 esgr:StarstoneMember esgr:ClearSpringMember srt:AffiliatedEntityMember 2018-01-01 2018-03-31 0001363829 esgr:CavelloBayMember esgr:ClearSpringMember srt:AffiliatedEntityMember 2018-01-01 2018-03-31 0001363829 esgr:CavelloBayMember esgr:ClearSpringMember srt:AffiliatedEntityMember 2019-01-01 2019-03-31 0001363829 esgr:ClearSpringMember srt:AffiliatedEntityMember 2019-01-01 2019-03-31 0001363829 esgr:StarstoneMember esgr:ClearSpringMember srt:AffiliatedEntityMember 2019-01-01 2019-03-31 0001363829 esgr:ClearSpringMember srt:AffiliatedEntityMember 2018-01-01 2018-03-31 0001363829 esgr:AmTrustFinancialServicesInc.Member srt:AffiliatedEntityMember 2018-11-30 0001363829 esgr:EvergreenParentL.P.Member srt:AffiliatedEntityMember 2018-01-01 2018-12-31 0001363829 esgr:TridentPineMember esgr:EvergreenParentL.P.Member srt:AffiliatedEntityMember 2018-11-30 0001363829 esgr:EvergreenParentL.P.Member srt:AffiliatedEntityMember 2018-11-01 2018-11-30 0001363829 esgr:EvergreenParentL.P.Member srt:AffiliatedEntityMember 2018-11-30 0001363829 esgr:AmTrustFinancialServicesInc.Member srt:AffiliatedEntityMember 2019-03-31 0001363829 esgr:AmTrustFinancialServicesInc.Member srt:AffiliatedEntityMember 2019-01-01 2019-03-31 0001363829 esgr:TridentMember esgr:CitcoIIILimitedMember srt:AffiliatedEntityMember 2019-03-31 0001363829 esgr:TridentMember esgr:CitcoIIILimitedMember srt:AffiliatedEntityMember 2018-06-01 2018-06-30 0001363829 esgr:EnstarMember esgr:EnhanzedReMember 2019-03-31 0001363829 esgr:EnhanzedReMember srt:AffiliatedEntityMember 2019-03-31 0001363829 esgr:AllianzMember esgr:EnhanzedReMember 2019-03-31 0001363829 esgr:HillhouseMember esgr:EnhanzedReMember 2019-03-31 0001363829 esgr:EnhanzedReMember srt:AffiliatedEntityMember 2018-01-01 2018-12-31 0001363829 country:US 2019-01-01 2019-03-31 0001363829 esgr:LimitedParentalGuaranteeMember 2019-03-31 0001363829 esgr:LimitedParentalGuaranteeMember 2018-12-31 0001363829 esgr:DanaCompaniesLLCMember 2018-12-31 0001363829 esgr:DanaCompaniesLLCMember esgr:DirectAsbestosLiabilitiesMember 2018-12-31 0001363829 esgr:DanaCompaniesLLCMember esgr:DirectEnvironmentalLiabilitiesMember 2018-12-31 0001363829 esgr:DanaCompaniesLLCMember 2019-03-31 0001363829 esgr:DanaCompaniesLLCMember esgr:DirectAsbestosLiabilitiesMember 2019-03-31 0001363829 esgr:DanaCompaniesLLCMember esgr:DirectEnvironmentalLiabilitiesMember 2019-03-31 0001363829 srt:MaximumMember 2019-01-01 2019-03-31 0001363829 srt:MinimumMember 2019-01-01 2019-03-31 esgr:Security iso4217:USD xbrli:pure esgr:Agreement xbrli:shares iso4217:USD xbrli:shares iso4217:GBP esgr:reinsurer esgr:Segment iso4217:EUR esgr:general_partners

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 10-Q
QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the quarterly period ended March 31, 2019
Commission File Number 001-33289
http://api.tenkwizard.com/cgi/image?quest=1&rid=23&ipage=12890032&doc=13
ENSTAR GROUP LIMITED
(Exact name of Registrant as specified in its charter)
BERMUDA
N/A
(State or other jurisdiction of incorporation or organization)
(I.R.S. Employer Identification No.)
Windsor Place, 3rd Floor, 22 Queen Street, Hamilton HM JX, Bermuda
(Address of principal executive offices, including zip code)
Registrant’s telephone number, including area code: (441) 292-3645
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  þ    No  ¨
Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).    Yes  þ    No  ¨
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company” and "emerging growth company" in Rule 12b-2 of the Exchange Act.
Large accelerated filer
þ
 
Accelerated filer
¨
 
Non-accelerated filer
¨
 
Smaller reporting company
¨
 
Emerging growth company
¨
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes  ¨    No  þ
Securities registered pursuant to Section 12(b) of the Act:
Title of Each Class
Trading Symbol(s)
Name of Each Exchange on Which Registered
Ordinary shares, par value $1.00 per share
ESGR
The NASDAQ Stock Market LLC
Depositary Shares, Each Representing a 1/1,000th Interest in a 7.00% Fixed-to-Floating Rate Perpetual Non-Cumulative Preferred Share, Series D, Par Value $1.00 Per Share
ESGRP
The NASDAQ Stock Market LLC
Depositary Shares, Each Representing a 1/1,000th Interest in a 7.00% Perpetual Non-Cumulative Preferred Share, Series E, Par Value $1.00 Per Share
ESGRO
The NASDAQ Stock Market LLC
As at May 7, 2019, the registrant had outstanding 17,971,679 voting ordinary shares and 3,509,682 non-voting convertible ordinary shares, each par value $1.00 per share.
 

Table of Contents



Enstar Group Limited
Quarterly Report on Form 10-Q
For the Period Ended March 31, 2019

Table of Contents
 
 
 
Page
PART I
 
 
 
 
Item 1.
Item 2.
Item 3.
Item 4.
 
 
 
PART II
 
 
 
 
Item 1.
Item 1A.
Item 2.
Item 6.

Table of Contents


PART I — FINANCIAL INFORMATION
ITEM 1.   FINANCIAL STATEMENTS
CONSOLIDATED FINANCIAL STATEMENTS
Page    


1
Table of Contents


ENSTAR GROUP LIMITED
UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS
As of March 31, 2019 (unaudited) and December 31, 2018
 
March 31,
2019
 
December 31,
2018
 
(expressed in thousands of U.S. dollars, except share data)
ASSETS
 
 
 
Short-term investments, trading, at fair value
$
76,060

 
$
114,116

Fixed maturities, trading, at fair value
7,317,054

 
7,248,793

Fixed maturities, available-for-sale, at fair value (amortized cost: 2019 — $142,675; 2018 — $151,433)
146,575

 
151,609

Funds held - directly managed
1,288,210

 
1,198,154

Equities, at fair value
400,420

 
367,125

Other investments, at fair value
2,324,345

 
1,957,757

Equity method investments
221,023

 
204,507

Total investments (Note 3 and Note 8)
11,773,687

 
11,242,061

Cash and cash equivalents
718,050

 
602,096

Restricted cash and cash equivalents
427,601

 
380,488

Premiums receivable
719,979

 
787,468

Deferred tax assets (Note 17)
9,062

 
10,124

Prepaid reinsurance premiums
208,558

 
198,990

Reinsurance balances recoverable (Note 5)
1,551,190

 
1,290,072

Reinsurance balances recoverable, at fair value (Note 5 and Note 8)
735,257

 
739,591

Funds held by reinsured companies
919,738

 
321,267

Deferred acquisition costs
195,733

 
121,101

Goodwill and intangible assets (Note 11)
218,160

 
218,725

Other assets
581,236

 
644,287

TOTAL ASSETS
$
18,058,251

 
$
16,556,270

 
 
 
 
LIABILITIES
 
 
 
Losses and loss adjustment expenses (Note 7)
$
7,248,229

 
$
6,535,449

Losses and loss adjustment expenses, at fair value (Note 7 and Note 8)
2,847,793

 
2,874,055

Policy benefits for life and annuity contracts (Note 9)
100,682

 
105,080

Unearned premiums
951,042

 
842,618

Insurance and reinsurance balances payable
455,738

 
388,086

Deferred tax liabilities (Note 17)
9,204

 
10,542

Debt obligations (Note 12)
1,103,790

 
861,539

Other liabilities
605,263

 
566,369

TOTAL LIABILITIES
13,321,741

 
12,183,738

 
 
 
 
COMMITMENTS AND CONTINGENCIES (Note 19)

 

 
 
 
 
REDEEMABLE NONCONTROLLING INTEREST (Note 13)
456,346

 
458,543

 
 
 
 
SHAREHOLDERS’ EQUITY (Note 14)
 
 
 
Ordinary shares (par value $1 each, issued and outstanding 2019: 21,467,515; 2018: 21,459,997):

 

Voting Ordinary shares (issued and outstanding 2019: 17,957,833; 2018: 17,950,315)
17,958

 
17,950

Non-voting convertible ordinary Series C Shares (issued and outstanding 2019 and 2018: 2,599,672)
2,600

 
2,600

Non-voting convertible ordinary Series E Shares (issued and outstanding 2019 and 2018: 910,010)
910

 
910

Preferred Shares:
 
 
 
Series C Preferred Shares (issued and held in treasury 2019 and 2018: 388,571)
389

 
389

Series D Preferred Shares (issued and outstanding 2019 and 2018: 16,000)
400,000

 
400,000

Series E Preferred Shares (issued and outstanding 2019 and 2018: 4,400)
110,000

 
110,000

Treasury shares, at cost (Series C Preferred shares 2019 and 2018: 388,571)
(421,559
)
 
(421,559
)
Additional paid-in capital
1,809,107

 
1,804,664

Accumulated other comprehensive income
13,279

 
10,440

Retained earnings
2,335,028

 
1,976,539

Total Enstar Group Limited Shareholders’ Equity
4,267,712

 
3,901,933

Noncontrolling interest
12,452

 
12,056

TOTAL SHAREHOLDERS’ EQUITY
4,280,164

 
3,913,989

TOTAL LIABILITIES, REDEEMABLE NONCONTROLLING INTEREST AND SHAREHOLDERS’ EQUITY
$
18,058,251

 
$
16,556,270

See accompanying notes to the unaudited condensed consolidated financial statements

2
Table of Contents


ENSTAR GROUP LIMITED
UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF EARNINGS
For the Three Months Ended March 31, 2019 and 2018
 
Three Months Ended March 31,
 
2019
 
2018
 
(expressed in thousands of U.S. dollars,
except share and per share data)
INCOME
 
 
 
Net premiums earned
$
335,287

 
$
170,219

Fees and commission income
6,681

 
8,331

Net investment income
78,696

 
66,319

Net realized and unrealized gains (losses)
460,791

 
(143,030
)
Other income
5,812

 
1,943

 
887,267

 
103,782

EXPENSES
 
 
 
Net incurred losses and loss adjustment expenses
312,404

 
19,534

Life and annuity policy benefits
96

 
(46
)
Acquisition costs
93,788

 
30,108

General and administrative expenses
112,074

 
95,260

Interest expense
11,036

 
8,011

Net foreign exchange gains (losses)
(3,850
)
 
5,868

 
525,548

 
158,735

EARNINGS (LOSS) BEFORE INCOME TAXES
361,719

 
(54,953
)
Income tax expense
(4,749
)
 
(172
)
Earnings from equity method investments
8,772

 
14,697

NET EARNINGS (LOSS)
365,742

 
(40,428
)
Net loss (earnings) attributable to noncontrolling interest
2,148

 
(782
)
NET EARNINGS (LOSS) ATTRIBUTABLE TO ENSTAR GROUP LIMITED
367,890

 
(41,210
)
Dividends on preferred shares
(9,139
)
 
—

NET EARNINGS (LOSS) ATTRIBUTABLE TO ENSTAR GROUP LIMITED ORDINARY SHAREHOLDERS
$
358,751

 
$
(41,210
)
 
 
 
 
Earnings (Loss) per ordinary share attributable to Enstar Group Limited:
Basic
$
16.71

 
$
(2.12
)
Diluted
$
16.57

 
$
(2.12
)
Weighted average ordinary shares outstanding:
 
 
 
Basic
21,463,499

 
19,409,021

Diluted
21,645,862

 
19,602,512

See accompanying notes to the unaudited condensed consolidated financial statements

3
Table of Contents


ENSTAR GROUP LIMITED
UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
For the Three Months Ended March 31, 2019 and 2018
 
 
Three Months Ended
March 31,
 
2019
 
2018
 
(expressed in thousands of U.S. dollars)
NET EARNINGS (LOSS)
$
365,742

 
$
(40,428
)
 
 
 
 
Other comprehensive income, net of tax:
 
 
 
Unrealized holding gains (losses) on fixed income available-for-sale investments arising during the period
3,663

 
(346
)
Reclassification adjustment for net realized gains included in net earnings
61

 
30

Unrealized gains (losses) arising during the period, net of reclassification adjustments
3,724

 
(316
)
Total cumulative translation adjustment
(801
)
 
1,225

Total other comprehensive income
2,923

 
909

 
 
 
 
Comprehensive income (loss)
368,665

 
(39,519
)
Comprehensive (income) loss attributable to noncontrolling interest
2,064

 
(756
)
COMPREHENSIVE INCOME (LOSS) ATTRIBUTABLE TO ENSTAR GROUP LIMITED
$
370,729

 
$
(40,275
)
See accompanying notes to the unaudited condensed consolidated financial statements


4
Table of Contents


ENSTAR GROUP LIMITED
UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS’ EQUITY
For the Three Months Ended March 31, 2019 and 2018
 
Three Months Ended March 31,
 
2019
 
2018
 
(expressed in thousands of U.S. dollars)
Share Capital — Voting Ordinary Shares
 
 
 
Balance, beginning of period
$
17,950

 
$
16,402

Issue of shares
8

 
11

Balance, end of period
$
17,958

 
$
16,413

Share Capital — Non-Voting Convertible Ordinary Series C Shares
 
 
 
Balance, beginning and end of period
$
2,600

 
$
2,600

Share Capital — Non-Voting Convertible Ordinary Series E Shares
 
 
 
Balance, beginning and end of period
$
910

 
$
405

Share Capital — Series C Convertible Participating Non-Voting Preferred Shares
 
 
 
Balance, beginning and end of period
$
389

 
$
389

Share Capital — Series D Preferred Shares
 
 
 
Balance, beginning and end of period
$
400,000

 
$
—

Share Capital — Series E Preferred Shares
 
 
 
Balance, beginning and end of period
$
110,000

 
$
—

Treasury Shares (Series C Preferred shares)
 
 
 
Balance, beginning and end of period
$
(421,559
)
 
$
(421,559
)
Additional Paid-in Capital
 
 
 
Balance, beginning of period
$
1,804,664

 
$
1,395,067

Issue of voting ordinary shares
466

 
(94
)
Amortization of share-based compensation
3,977

 
5,651

Balance, end of period
$
1,809,107

 
$
1,400,624

Accumulated Other Comprehensive Income (Loss)
 
 
 
Balance, beginning of period
$
10,440

 
$
10,468

Currency translation adjustment
 
 
 
Balance, beginning of period
10,986

 
11,171

Change in currency translation adjustment
(803
)
 
1,229

Balance, end of period
10,183

 
12,400

Defined benefit pension liability
 
 
 
Balance, beginning and end of period
(987
)
 
(3,143
)
Unrealized gains (losses) on available-for-sale investments
 
 
 
Balance, beginning of period
441

 
2,440

Change in unrealized gains (losses) on available-for-sale investments
3,642

 
(294
)
Balance, end of period
4,083

 
2,146

Balance, end of period
$
13,279

 
$
11,403

Retained Earnings
 
 
 
Balance, beginning of period
$
1,976,539

 
$
2,132,912

Net earnings (losses) attributable to Enstar Group Limited
365,742

 
(40,428
)
Net loss (earnings) attributable to noncontrolling interest
2,148

 
(782
)
Dividends on preferred shares
(9,139
)
 
—

Change in redemption value of redeemable noncontrolling interests
(262
)
 
(369
)
Cumulative effect of change in accounting principle
—

 
(1,573
)
Balance, end of period
$
2,335,028

 
$
2,089,760

Noncontrolling Interest (excludes Redeemable Noncontrolling Interest)
 
 
 
Balance, beginning of period
$
12,056

 
$
9,264

Contribution of capital
—

 
49

Net earnings attributable to noncontrolling interest
396

 
(37
)
Balance, end of period
$
12,452

 
$
9,276

 
See accompanying notes to the unaudited condensed consolidated financial statements

5
Table of Contents


ENSTAR GROUP LIMITED
UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
For the Three Months Ended March 31, 2019 and 2018
 
Three Months Ended
March 31,
 
2019
 
2018
 
(expressed in thousands of U.S. dollars)
OPERATING ACTIVITIES:
 
 
 
Net earnings (loss)
$
365,742

 
$
(40,428
)
Adjustments to reconcile net earnings (loss) to cash flows provided by (used in) operating activities:
 
 
 
Realized losses (gains) on sale of investments