Company Quick10K Filing
Enstar
Price191.39 EPS29
Shares22 P/E7
MCap4,161 P/FCF6
Net Debt-130 EBIT689
TEV4,031 TEV/EBIT6
TTM 2019-09-30, in MM, except price, ratios
10-Q 2020-06-30 Filed 2020-08-10
10-Q 2020-03-31 Filed 2020-05-07
10-K 2019-12-31 Filed 2020-02-27
10-Q 2019-09-30 Filed 2019-11-07
10-Q 2019-06-30 Filed 2019-08-06
10-Q 2019-03-31 Filed 2019-05-08
10-K 2018-12-31 Filed 2019-03-01
10-Q 2018-09-30 Filed 2018-11-08
10-Q 2018-06-30 Filed 2018-08-02
10-Q 2018-03-31 Filed 2018-05-08
10-K 2017-12-31 Filed 2018-02-28
10-Q 2017-09-30 Filed 2017-11-08
10-Q 2017-06-30 Filed 2017-08-03
10-Q 2017-03-31 Filed 2017-05-08
10-K 2016-12-31 Filed 2017-02-27
10-Q 2016-09-30 Filed 2016-11-08
10-Q 2016-06-30 Filed 2016-08-05
10-Q 2016-03-31 Filed 2016-05-06
10-K 2015-12-31 Filed 2016-02-29
10-Q 2015-09-30 Filed 2015-11-09
10-Q 2015-06-30 Filed 2015-08-07
10-Q 2015-03-31 Filed 2015-05-11
10-K 2014-12-31 Filed 2015-03-02
10-Q 2014-09-30 Filed 2014-11-10
10-Q 2014-06-30 Filed 2014-08-11
10-Q 2014-03-31 Filed 2014-05-09
10-K 2013-12-31 Filed 2014-03-03
10-Q 2013-09-30 Filed 2013-11-07
10-Q 2013-06-30 Filed 2013-08-09
10-Q 2013-03-31 Filed 2013-05-10
10-K 2012-12-31 Filed 2013-03-01
10-Q 2012-09-30 Filed 2012-11-08
10-Q 2012-06-30 Filed 2012-08-02
10-Q 2012-03-31 Filed 2012-05-04
10-K 2011-12-31 Filed 2012-02-24
10-Q 2011-09-30 Filed 2011-11-04
10-Q 2011-06-30 Filed 2011-08-05
10-Q 2011-03-31 Filed 2011-05-06
10-K 2010-12-31 Filed 2011-03-07
10-Q 2010-09-30 Filed 2010-11-05
10-Q 2010-06-30 Filed 2010-08-06
10-Q 2010-03-31 Filed 2010-05-07
10-K 2009-12-31 Filed 2010-03-04
8-K 2020-08-26 Enter Agreement, Off-BS Arrangement, Exhibits
8-K 2020-08-21 Officers
8-K 2020-08-19 Other Events, Exhibits
8-K 2020-08-13 Enter Agreement, Exhibits
8-K 2020-07-14 Enter Agreement, Officers, Exhibits
8-K 2020-06-10
8-K 2020-06-10
8-K 2020-06-03
8-K 2020-04-06
8-K 2020-03-31
8-K 2020-03-23
8-K 2020-03-09
8-K 2020-03-02
8-K 2020-02-21
8-K 2020-01-21
8-K 2019-12-09
8-K 2019-11-25
8-K 2019-08-05
8-K 2019-06-11
8-K 2019-05-28
8-K 2019-05-08
8-K 2019-03-26
8-K 2018-12-27
8-K 2018-12-11
8-K 2018-11-29
8-K 2018-11-21
8-K 2018-11-14
8-K 2018-11-07
8-K 2018-09-18
8-K 2018-08-31
8-K 2018-08-16
8-K 2018-07-23
8-K 2018-06-27
8-K 2018-06-20
8-K 2018-06-13
8-K 2018-05-14
8-K 2018-02-02
8-K 2017-12-28

ESGR 10Q Quarterly Report

Part I - Financial Information
Item 1. Financial Statements
Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations
Item 3. Quantitative and Qualitative Disclosures About Market Risk
Item 4. Controls and Procedures
Part II - Other Information
Item 1. Legal Proceedings
Item 1A. Risk Factors
Item 2. Unregistered Sales of Equity Securities and Use of Proceeds
Item 6. Exhibits
EX-31.1 a2020q2-exx311ceocerti.htm
EX-31.2 a2020q2-exx312cfocerti.htm
EX-32.1 a2020q2-exx321ceocerti.htm
EX-32.2 a2020q2-exx322cfocerti.htm

Enstar Earnings 2020-06-30

Balance SheetIncome StatementCash Flow
2016128402012201420172020
Assets, Equity
0.90.70.50.20.0-0.22012201420172020
Rev, G Profit, Net Income
0.60.40.2-0.1-0.3-0.52012201420172020
Ops, Inv, Fin

esgr-20200630
Enstar Group LTDD0truefalse00013638292020Q2FALSE--12-31us-gaap:AccountingStandardsUpdate201613Memberus-gaap:AccountingStandardsUpdate201613Memberus-gaap:AccountingStandardsUpdate201613Memberus-gaap:AccountingStandardsUpdate201613Memberus-gaap:AccountingStandardsUpdate201613Memberus-gaap:AccountingStandardsUpdate201613MemberP10Yus-gaap:AccountingStandardsUpdate201613Member00013638292020-01-012020-06-300001363829us-gaap:CommonStockMember2020-01-012020-06-300001363829us-gaap:SeriesDPreferredStockMember2020-01-012020-06-300001363829us-gaap:SeriesEPreferredStockMember2020-01-012020-06-30xbrli:shares0001363829esgr:VotingCommonStockMember2020-08-070001363829us-gaap:NonvotingCommonStockMember2020-08-07iso4217:USD0001363829us-gaap:ShortTermInvestmentsMember2020-06-300001363829us-gaap:ShortTermInvestmentsMember2019-12-310001363829us-gaap:FixedMaturitiesMember2020-06-300001363829us-gaap:FixedMaturitiesMember2019-12-3100013638292020-06-3000013638292019-12-31iso4217:USDxbrli:shares0001363829esgr:VotingCommonStockMember2020-06-300001363829esgr:VotingCommonStockMember2019-12-310001363829us-gaap:CommonClassCMember2020-06-300001363829us-gaap:CommonClassCMember2019-12-310001363829esgr:CommonClassEMember2019-12-310001363829esgr:CommonClassEMember2020-06-300001363829us-gaap:SeriesCPreferredStockMember2019-12-310001363829us-gaap:SeriesCPreferredStockMember2020-06-300001363829us-gaap:SeriesDPreferredStockMember2020-06-300001363829us-gaap:SeriesDPreferredStockMember2019-12-310001363829us-gaap:SeriesEPreferredStockMember2020-06-300001363829us-gaap:SeriesEPreferredStockMember2019-12-3100013638292020-04-012020-06-3000013638292019-04-012019-06-3000013638292019-01-012019-06-300001363829esgr:VotingCommonStockMemberus-gaap:CommonStockMember2020-03-310001363829esgr:VotingCommonStockMemberus-gaap:CommonStockMember2019-03-310001363829esgr:VotingCommonStockMemberus-gaap:CommonStockMember2019-12-310001363829esgr:VotingCommonStockMemberus-gaap:CommonStockMember2018-12-310001363829esgr:VotingCommonStockMemberus-gaap:CommonStockMember2020-04-012020-06-300001363829esgr:VotingCommonStockMemberus-gaap:CommonStockMember2019-04-012019-06-300001363829esgr:VotingCommonStockMemberus-gaap:CommonStockMember2020-01-012020-06-300001363829esgr:VotingCommonStockMemberus-gaap:CommonStockMember2019-01-012019-06-300001363829esgr:VotingCommonStockMemberus-gaap:CommonStockMember2020-06-300001363829esgr:VotingCommonStockMemberus-gaap:CommonStockMember2019-06-300001363829us-gaap:CommonClassCMemberus-gaap:CommonStockMember2020-03-310001363829us-gaap:CommonClassCMemberus-gaap:CommonStockMember2020-06-300001363829us-gaap:CommonClassCMemberus-gaap:CommonStockMember2019-06-300001363829us-gaap:CommonClassCMemberus-gaap:CommonStockMember2019-03-310001363829us-gaap:CommonClassCMemberus-gaap:CommonStockMember2019-12-310001363829us-gaap:CommonClassCMemberus-gaap:CommonStockMember2018-12-310001363829esgr:CommonClassEMemberus-gaap:CommonStockMember2020-03-310001363829esgr:CommonClassEMemberus-gaap:CommonStockMember2020-06-300001363829esgr:CommonClassEMemberus-gaap:CommonStockMember2019-03-310001363829esgr:CommonClassEMemberus-gaap:CommonStockMember2019-06-300001363829esgr:CommonClassEMemberus-gaap:CommonStockMember2019-12-310001363829esgr:CommonClassEMemberus-gaap:CommonStockMember2018-12-310001363829us-gaap:SeriesCPreferredStockMemberus-gaap:PreferredStockMember2020-03-310001363829us-gaap:SeriesCPreferredStockMemberus-gaap:PreferredStockMember2020-06-300001363829us-gaap:SeriesCPreferredStockMemberus-gaap:PreferredStockMember2019-03-310001363829us-gaap:SeriesCPreferredStockMemberus-gaap:PreferredStockMember2019-06-300001363829us-gaap:SeriesCPreferredStockMemberus-gaap:PreferredStockMember2019-12-310001363829us-gaap:SeriesCPreferredStockMemberus-gaap:PreferredStockMember2018-12-310001363829us-gaap:SeriesDPreferredStockMemberus-gaap:PreferredStockMember2020-06-300001363829us-gaap:SeriesDPreferredStockMemberus-gaap:PreferredStockMember2020-03-310001363829us-gaap:SeriesDPreferredStockMemberus-gaap:PreferredStockMember2019-03-310001363829us-gaap:SeriesDPreferredStockMemberus-gaap:PreferredStockMember2019-06-300001363829us-gaap:SeriesDPreferredStockMemberus-gaap:PreferredStockMember2019-12-310001363829us-gaap:SeriesDPreferredStockMemberus-gaap:PreferredStockMember2018-12-310001363829us-gaap:SeriesEPreferredStockMemberus-gaap:PreferredStockMember2020-03-310001363829us-gaap:SeriesEPreferredStockMemberus-gaap:PreferredStockMember2020-06-300001363829us-gaap:SeriesEPreferredStockMemberus-gaap:PreferredStockMember2019-03-310001363829us-gaap:SeriesEPreferredStockMemberus-gaap:PreferredStockMember2019-06-300001363829us-gaap:SeriesEPreferredStockMemberus-gaap:PreferredStockMember2019-12-310001363829us-gaap:SeriesEPreferredStockMemberus-gaap:PreferredStockMember2018-12-310001363829us-gaap:TreasuryStockMember2020-03-310001363829us-gaap:TreasuryStockMember2020-06-300001363829us-gaap:TreasuryStockMember2019-03-310001363829us-gaap:TreasuryStockMember2019-06-300001363829us-gaap:TreasuryStockMember2019-12-310001363829us-gaap:TreasuryStockMember2018-12-310001363829esgr:JointOwnershipPlanVotingOrdinarySharesMember2020-03-310001363829esgr:JointOwnershipPlanVotingOrdinarySharesMember2019-03-310001363829esgr:JointOwnershipPlanVotingOrdinarySharesMember2019-12-310001363829esgr:JointOwnershipPlanVotingOrdinarySharesMember2018-12-310001363829esgr:JointOwnershipPlanVotingOrdinarySharesMember2020-04-012020-06-300001363829esgr:JointOwnershipPlanVotingOrdinarySharesMember2019-04-012019-06-300001363829esgr:JointOwnershipPlanVotingOrdinarySharesMember2020-01-012020-06-300001363829esgr:JointOwnershipPlanVotingOrdinarySharesMember2019-01-012019-06-300001363829esgr:JointOwnershipPlanVotingOrdinarySharesMember2020-06-300001363829esgr:JointOwnershipPlanVotingOrdinarySharesMember2019-06-300001363829us-gaap:AdditionalPaidInCapitalMember2020-03-310001363829us-gaap:AdditionalPaidInCapitalMember2019-03-310001363829us-gaap:AdditionalPaidInCapitalMember2019-12-310001363829us-gaap:AdditionalPaidInCapitalMember2018-12-310001363829us-gaap:AdditionalPaidInCapitalMember2020-04-012020-06-300001363829us-gaap:AdditionalPaidInCapitalMember2019-04-012019-06-300001363829us-gaap:AdditionalPaidInCapitalMember2020-01-012020-06-300001363829us-gaap:AdditionalPaidInCapitalMember2019-01-012019-06-300001363829us-gaap:AdditionalPaidInCapitalMember2020-06-300001363829us-gaap:AdditionalPaidInCapitalMember2019-06-300001363829us-gaap:AccumulatedOtherComprehensiveIncomeMember2020-03-310001363829us-gaap:AccumulatedOtherComprehensiveIncomeMember2019-03-310001363829us-gaap:AccumulatedOtherComprehensiveIncomeMember2019-12-310001363829us-gaap:AccumulatedOtherComprehensiveIncomeMember2018-12-310001363829us-gaap:AccumulatedTranslationAdjustmentMember2020-03-310001363829us-gaap:AccumulatedTranslationAdjustmentMember2019-03-310001363829us-gaap:AccumulatedTranslationAdjustmentMember2019-12-310001363829us-gaap:AccumulatedTranslationAdjustmentMember2018-12-310001363829us-gaap:AccumulatedTranslationAdjustmentMember2020-04-012020-06-300001363829us-gaap:AccumulatedTranslationAdjustmentMember2019-04-012019-06-300001363829us-gaap:AccumulatedTranslationAdjustmentMember2020-01-012020-06-300001363829us-gaap:AccumulatedTranslationAdjustmentMember2019-01-012019-06-300001363829us-gaap:AccumulatedTranslationAdjustmentMember2020-06-300001363829us-gaap:AccumulatedTranslationAdjustmentMember2019-06-300001363829us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2020-03-310001363829us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2020-06-300001363829us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2019-03-310001363829us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2019-06-300001363829us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2019-12-310001363829us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2018-12-310001363829us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2020-03-310001363829us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2019-03-310001363829us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2019-12-310001363829us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2018-12-310001363829us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2020-04-012020-06-300001363829us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2019-04-012019-06-300001363829us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2020-01-012020-06-300001363829us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2019-01-012019-06-300001363829us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2020-06-300001363829us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2019-06-300001363829us-gaap:AccumulatedOtherComprehensiveIncomeMember2020-06-300001363829us-gaap:AccumulatedOtherComprehensiveIncomeMember2019-06-300001363829us-gaap:RetainedEarningsMember2020-03-310001363829us-gaap:RetainedEarningsMember2019-03-310001363829us-gaap:RetainedEarningsMember2019-12-310001363829us-gaap:RetainedEarningsMember2018-12-310001363829us-gaap:RetainedEarningsMember2020-04-012020-06-300001363829us-gaap:RetainedEarningsMember2019-04-012019-06-300001363829us-gaap:RetainedEarningsMember2020-01-012020-06-300001363829us-gaap:RetainedEarningsMember2019-01-012019-06-300001363829srt:CumulativeEffectPeriodOfAdoptionAdjustmentMemberus-gaap:RetainedEarningsMember2020-03-310001363829srt:CumulativeEffectPeriodOfAdoptionAdjustmentMemberus-gaap:RetainedEarningsMember2019-03-310001363829srt:CumulativeEffectPeriodOfAdoptionAdjustmentMemberus-gaap:RetainedEarningsMember2019-12-310001363829srt:CumulativeEffectPeriodOfAdoptionAdjustmentMemberus-gaap:RetainedEarningsMember2018-12-310001363829us-gaap:RetainedEarningsMember2020-06-300001363829us-gaap:RetainedEarningsMember2019-06-300001363829us-gaap:NoncontrollingInterestMember2020-03-310001363829us-gaap:NoncontrollingInterestMember2019-03-310001363829us-gaap:NoncontrollingInterestMember2019-12-310001363829us-gaap:NoncontrollingInterestMember2018-12-310001363829us-gaap:NoncontrollingInterestMember2020-04-012020-06-300001363829us-gaap:NoncontrollingInterestMember2019-04-012019-06-300001363829us-gaap:NoncontrollingInterestMember2020-01-012020-06-300001363829us-gaap:NoncontrollingInterestMember2019-01-012019-06-300001363829us-gaap:NoncontrollingInterestMember2020-06-300001363829us-gaap:NoncontrollingInterestMember2019-06-3000013638292019-06-3000013638292018-12-3100013638292019-01-012019-12-310001363829srt:CumulativeEffectPeriodOfAdoptionAdjustmentMember2019-12-310001363829us-gaap:SubsequentEventMemberesgr:HannoverReMember2020-08-062020-08-06iso4217:AUD0001363829us-gaap:SubsequentEventMemberesgr:MunichReMember2020-07-012020-07-010001363829esgr:AXAGroupMember2020-06-012020-06-010001363829esgr:AspenMember2020-06-012020-06-010001363829esgr:AspenMember2020-06-010001363829srt:MinimumMemberesgr:AspenMember2020-06-012020-06-010001363829esgr:PacificValleyInsuranceCompanyMember2020-03-312020-03-310001363829esgr:PacificValleyInsuranceCompanyMember2020-04-012020-04-30xbrli:pure0001363829us-gaap:DiscontinuedOperationsHeldforsaleMemberesgr:StarStoneUSMemberesgr:StarStoneUSMember2020-06-100001363829us-gaap:DiscontinuedOperationsHeldforsaleMembersrt:ScenarioForecastMemberesgr:StarStoneUSMember2020-12-310001363829srt:ScenarioForecastMemberesgr:NewCoMember2020-12-310001363829srt:ScenarioForecastMemberesgr:StarStoneUSMember2020-07-012020-12-310001363829us-gaap:DiscontinuedOperationsHeldforsaleMemberesgr:StarStoneUSMember2020-06-300001363829us-gaap:DiscontinuedOperationsHeldforsaleMemberesgr:StarStoneUSMember2019-12-310001363829us-gaap:DiscontinuedOperationsHeldforsaleMemberesgr:StarStoneUSMember2020-01-012020-06-300001363829us-gaap:DiscontinuedOperationsHeldforsaleMemberesgr:StarStoneUSMember2019-01-012019-12-310001363829us-gaap:DiscontinuedOperationsHeldforsaleMemberesgr:StarStoneUSMember2020-04-012020-06-300001363829us-gaap:DiscontinuedOperationsHeldforsaleMemberesgr:StarStoneUSMember2019-04-012019-06-300001363829us-gaap:DiscontinuedOperationsHeldforsaleMemberesgr:StarStoneUSMember2019-01-012019-06-300001363829us-gaap:USGovernmentAgenciesDebtSecuritiesMemberus-gaap:ShortTermInvestmentsMember2020-06-300001363829us-gaap:USGovernmentAgenciesDebtSecuritiesMemberus-gaap:FixedMaturitiesMember2020-06-300001363829us-gaap:USGovernmentAgenciesDebtSecuritiesMemberesgr:FundsHeldDirectlyManagedMember2020-06-300001363829us-gaap:USGovernmentAgenciesDebtSecuritiesMember2020-06-300001363829us-gaap:ShortTermInvestmentsMemberesgr:UnitedKingdomGovernmentAgenciesDebtSecuritiesMember2020-06-300001363829us-gaap:FixedMaturitiesMemberesgr:UnitedKingdomGovernmentAgenciesDebtSecuritiesMember2020-06-300001363829esgr:FundsHeldDirectlyManagedMemberesgr:UnitedKingdomGovernmentAgenciesDebtSecuritiesMember2020-06-300001363829esgr:UnitedKingdomGovernmentAgenciesDebtSecuritiesMember2020-06-300001363829esgr:OtherGovernmentAgenciesDebtSecuritiesMemberus-gaap:ShortTermInvestmentsMember2020-06-300001363829esgr:OtherGovernmentAgenciesDebtSecuritiesMemberus-gaap:FixedMaturitiesMember2020-06-300001363829esgr:FundsHeldDirectlyManagedMemberesgr:OtherGovernmentAgenciesDebtSecuritiesMember2020-06-300001363829esgr:OtherGovernmentAgenciesDebtSecuritiesMember2020-06-300001363829us-gaap:ShortTermInvestmentsMemberus-gaap:CorporateDebtSecuritiesMember2020-06-300001363829us-gaap:CorporateDebtSecuritiesMemberus-gaap:FixedMaturitiesMember2020-06-300001363829esgr:FundsHeldDirectlyManagedMemberus-gaap:CorporateDebtSecuritiesMember2020-06-300001363829us-gaap:CorporateDebtSecuritiesMember2020-06-300001363829us-gaap:MunicipalBondsMemberus-gaap:ShortTermInvestmentsMember2020-06-300001363829us-gaap:MunicipalBondsMemberus-gaap:FixedMaturitiesMember2020-06-300001363829us-gaap:MunicipalBondsMemberesgr:FundsHeldDirectlyManagedMember2020-06-300001363829us-gaap:MunicipalBondsMember2020-06-300001363829us-gaap:ShortTermInvestmentsMemberus-gaap:ResidentialMortgageBackedSecuritiesMember2020-06-300001363829us-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FixedMaturitiesMember2020-06-300001363829esgr:FundsHeldDirectlyManagedMemberus-gaap:ResidentialMortgageBackedSecuritiesMember2020-06-300001363829us-gaap:ResidentialMortgageBackedSecuritiesMember2020-06-300001363829us-gaap:CommercialMortgageBackedSecuritiesMemberus-gaap:ShortTermInvestmentsMember2020-06-300001363829us-gaap:CommercialMortgageBackedSecuritiesMemberus-gaap:FixedMaturitiesMember2020-06-300001363829us-gaap:CommercialMortgageBackedSecuritiesMemberesgr:FundsHeldDirectlyManagedMember2020-06-300001363829us-gaap:CommercialMortgageBackedSecuritiesMember2020-06-300001363829us-gaap:ShortTermInvestmentsMemberus-gaap:AssetBackedSecuritiesMember2020-06-300001363829us-gaap:AssetBackedSecuritiesMemberus-gaap:FixedMaturitiesMember2020-06-300001363829esgr:FundsHeldDirectlyManagedMemberus-gaap:AssetBackedSecuritiesMember2020-06-300001363829us-gaap:AssetBackedSecuritiesMember2020-06-300001363829esgr:FundsHeldDirectlyManagedMember2020-06-300001363829us-gaap:USGovernmentAgenciesDebtSecuritiesMemberus-gaap:ShortTermInvestmentsMember2019-12-310001363829us-gaap:USGovernmentAgenciesDebtSecuritiesMemberus-gaap:FixedMaturitiesMember2019-12-310001363829us-gaap:USGovernmentAgenciesDebtSecuritiesMemberesgr:FundsHeldDirectlyManagedMember2019-12-310001363829us-gaap:USGovernmentAgenciesDebtSecuritiesMember2019-12-310001363829us-gaap:ShortTermInvestmentsMemberesgr:UnitedKingdomGovernmentAgenciesDebtSecuritiesMember2019-12-310001363829us-gaap:FixedMaturitiesMemberesgr:UnitedKingdomGovernmentAgenciesDebtSecuritiesMember2019-12-310001363829esgr:FundsHeldDirectlyManagedMemberesgr:UnitedKingdomGovernmentAgenciesDebtSecuritiesMember2019-12-310001363829esgr:UnitedKingdomGovernmentAgenciesDebtSecuritiesMember2019-12-310001363829esgr:OtherGovernmentAgenciesDebtSecuritiesMemberus-gaap:ShortTermInvestmentsMember2019-12-310001363829esgr:OtherGovernmentAgenciesDebtSecuritiesMemberus-gaap:FixedMaturitiesMember2019-12-310001363829esgr:FundsHeldDirectlyManagedMemberesgr:OtherGovernmentAgenciesDebtSecuritiesMember2019-12-310001363829esgr:OtherGovernmentAgenciesDebtSecuritiesMember2019-12-310001363829us-gaap:ShortTermInvestmentsMemberus-gaap:CorporateDebtSecuritiesMember2019-12-310001363829us-gaap:CorporateDebtSecuritiesMemberus-gaap:FixedMaturitiesMember2019-12-310001363829esgr:FundsHeldDirectlyManagedMemberus-gaap:CorporateDebtSecuritiesMember2019-12-310001363829us-gaap:CorporateDebtSecuritiesMember2019-12-310001363829us-gaap:MunicipalBondsMemberus-gaap:ShortTermInvestmentsMember2019-12-310001363829us-gaap:MunicipalBondsMemberus-gaap:FixedMaturitiesMember2019-12-310001363829us-gaap:MunicipalBondsMemberesgr:FundsHeldDirectlyManagedMember2019-12-310001363829us-gaap:MunicipalBondsMember2019-12-310001363829us-gaap:ShortTermInvestmentsMemberus-gaap:ResidentialMortgageBackedSecuritiesMember2019-12-310001363829us-gaap:ResidentialMortgageBackedSecuritiesMemberus-gaap:FixedMaturitiesMember2019-12-310001363829esgr:FundsHeldDirectlyManagedMemberus-gaap:ResidentialMortgageBackedSecuritiesMember2019-12-310001363829us-gaap:ResidentialMortgageBackedSecuritiesMember2019-12-310001363829us-gaap:CommercialMortgageBackedSecuritiesMemberus-gaap:ShortTermInvestmentsMember2019-12-310001363829us-gaap:CommercialMortgageBackedSecuritiesMemberus-gaap:FixedMaturitiesMember2019-12-310001363829us-gaap:CommercialMortgageBackedSecuritiesMemberesgr:FundsHeldDirectlyManagedMember2019-12-310001363829us-gaap:CommercialMortgageBackedSecuritiesMember2019-12-310001363829us-gaap:ShortTermInvestmentsMemberus-gaap:AssetBackedSecuritiesMember2019-12-310001363829us-gaap:AssetBackedSecuritiesMemberus-gaap:FixedMaturitiesMember2019-12-310001363829esgr:FundsHeldDirectlyManagedMemberus-gaap:AssetBackedSecuritiesMember2019-12-310001363829us-gaap:AssetBackedSecuritiesMember2019-12-310001363829esgr:FundsHeldDirectlyManagedMember2019-12-310001363829us-gaap:MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember2020-06-300001363829us-gaap:MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember2019-12-310001363829esgr:SeniorSecuredDebtSecuritiesMember2020-06-300001363829esgr:SeniorSecuredDebtSecuritiesMember2019-12-310001363829esgr:ShortTermInvestmentsAndFixedMaturitiesMember2020-06-300001363829esgr:ShortTermInvestmentsAndFixedMaturitiesMemberus-gaap:ResidentialMortgageBackedSecuritiesMember2020-06-300001363829us-gaap:CommercialMortgageBackedSecuritiesMemberesgr:ShortTermInvestmentsAndFixedMaturitiesMember2020-06-300001363829esgr:ShortTermInvestmentsAndFixedMaturitiesMemberus-gaap:AssetBackedSecuritiesMember2020-06-300001363829us-gaap:USGovernmentAgenciesDebtSecuritiesMemberesgr:MarketableSecuritiesMemberesgr:PortfolioConcentrationRiskMemberesgr:TradingSecuritiesandAvailableforSaleSecuritiesMember2020-01-012020-06-300001363829us-gaap:USGovernmentAgenciesDebtSecuritiesMemberesgr:StandardPoorsFitchAAARatingMemberMemberus-gaap:ExternalCreditRatingInvestmentGradeMember2020-06-300001363829us-gaap:USGovernmentAgenciesDebtSecuritiesMemberesgr:StandardPoorsFitchAARatingMemberus-gaap:ExternalCreditRatingInvestmentGradeMember2020-06-300001363829us-gaap:USGovernmentAgenciesDebtSecuritiesMemberus-gaap:ExternalCreditRatingInvestmentGradeMemberesgr:StandardPoorsFitchARatingMember2020-06-300001363829us-gaap:USGovernmentAgenciesDebtSecuritiesMemberesgr:StandardPoorsFitchBBBRatingMemberus-gaap:ExternalCreditRatingInvestmentGradeMember2020-06-300001363829us-gaap:USGovernmentAgenciesDebtSecuritiesMemberus-gaap:ExternalCreditRatingNonInvestmentGradeMember2020-06-300001363829us-gaap:USGovernmentAgenciesDebtSecuritiesMemberesgr:NotRatedMember2020-06-300001363829esgr:MarketableSecuritiesMemberesgr:PortfolioConcentrationRiskMemberesgr:TradingSecuritiesandAvailableforSaleSecuritiesMemberesgr:UnitedKingdomGovernmentAgenciesDebtSecuritiesMember2020-01-012020-06-300001363829esgr:StandardPoorsFitchAAARatingMemberMemberus-gaap:ExternalCreditRatingInvestmentGradeMemberesgr:UnitedKingdomGovernmentAgenciesDebtSecuritiesMember2020-06-300001363829esgr:StandardPoorsFitchAARatingMemberus-gaap:ExternalCreditRatingInvestmentGradeMemberesgr:UnitedKingdomGovernmentAgenciesDebtSecuritiesMember2020-06-300001363829us-gaap:ExternalCreditRatingInvestmentGradeMemberesgr:StandardPoorsFitchARatingMemberesgr:UnitedKingdomGovernmentAgenciesDebtSecuritiesMember2020-06-300001363829esgr:StandardPoorsFitchBBBRatingMemberus-gaap:ExternalCreditRatingInvestmentGradeMemberesgr:UnitedKingdomGovernmentAgenciesDebtSecuritiesMember2020-06-300001363829us-gaap:ExternalCreditRatingNonInvestmentGradeMemberesgr:UnitedKingdomGovernmentAgenciesDebtSecuritiesMember2020-06-300001363829esgr:NotRatedMemberesgr:UnitedKingdomGovernmentAgenciesDebtSecuritiesMember2020-06-300001363829esgr:MarketableSecuritiesMemberesgr:OtherGovernmentAgenciesDebtSecuritiesMemberesgr:PortfolioConcentrationRiskMemberesgr:TradingSecuritiesandAvailableforSaleSecuritiesMember2020-01-012020-06-300001363829esgr:StandardPoorsFitchAAARatingMemberMemberesgr:OtherGovernmentAgenciesDebtSecuritiesMemberus-gaap:ExternalCreditRatingInvestmentGradeMember2020-06-300001363829esgr:OtherGovernmentAgenciesDebtSecuritiesMemberesgr:StandardPoorsFitchAARatingMemberus-gaap:ExternalCreditRatingInvestmentGradeMember2020-06-300001363829esgr:OtherGovernmentAgenciesDebtSecuritiesMemberus-gaap:ExternalCreditRatingInvestmentGradeMemberesgr:StandardPoorsFitchARatingMember2020-06-300001363829esgr:StandardPoorsFitchBBBRatingMemberesgr:OtherGovernmentAgenciesDebtSecuritiesMemberus-gaap:ExternalCreditRatingInvestmentGradeMember2020-06-300001363829us-gaap:ExternalCreditRatingNonInvestmentGradeMemberesgr:OtherGovernmentAgenciesDebtSecuritiesMember2020-06-300001363829esgr:OtherGovernmentAgenciesDebtSecuritiesMemberesgr:NotRatedMember2020-06-300001363829esgr:MarketableSecuritiesMemberesgr:PortfolioConcentrationRiskMemberus-gaap:CorporateDebtSecuritiesMemberesgr:TradingSecuritiesandAvailableforSaleSecuritiesMember2020-01-012020-06-300001363829esgr:StandardPoorsFitchAAARatingMemberMemberus-gaap:ExternalCreditRatingInvestmentGradeMemberus-gaap:CorporateDebtSecuritiesMember2020-06-300001363829esgr:StandardPoorsFitchAARatingMemberus-gaap:ExternalCreditRatingInvestmentGradeMemberus-gaap:CorporateDebtSecuritiesMember2020-06-300001363829us-gaap:ExternalCreditRatingInvestmentGradeMemberus-gaap:CorporateDebtSecuritiesMemberesgr:StandardPoorsFitchARatingMember2020-06-300001363829esgr:StandardPoorsFitchBBBRatingMemberus-gaap:ExternalCreditRatingInvestmentGradeMemberus-gaap:CorporateDebtSecuritiesMember2020-06-300001363829us-gaap:ExternalCreditRatingNonInvestmentGradeMemberus-gaap:CorporateDebtSecuritiesMember2020-06-300001363829esgr:NotRatedMemberus-gaap:CorporateDebtSecuritiesMember2020-06-300001363829esgr:MarketableSecuritiesMemberus-gaap:MunicipalBondsMemberesgr:PortfolioConcentrationRiskMemberesgr:TradingSecuritiesandAvailableforSaleSecuritiesMember2020-01-012020-06-300001363829us-gaap:MunicipalBondsMemberesgr:StandardPoorsFitchAAARatingMemberMemberus-gaap:ExternalCreditRatingInvestmentGradeMember2020-06-300001363829us-gaap:MunicipalBondsMemberesgr:StandardPoorsFitchAARatingMemberus-gaap:ExternalCreditRatingInvestmentGradeMember2020-06-300001363829us-gaap:MunicipalBondsMemberus-gaap:ExternalCreditRatingInvestmentGradeMemberesgr:StandardPoorsFitchARatingMember2020-06-300001363829esgr:StandardPoorsFitchBBBRatingMemberus-gaap:MunicipalBondsMemberus-gaap:ExternalCreditRatingInvestmentGradeMember2020-06-300001363829us-gaap:ExternalCreditRatingNonInvestmentGradeMemberus-gaap:MunicipalBondsMember2020-06-300001363829us-gaap:MunicipalBondsMemberesgr:NotRatedMember2020-06-300001363829esgr:MarketableSecuritiesMemberesgr:PortfolioConcentrationRiskMemberus-gaap:ResidentialMortgageBackedSecuritiesMemberesgr:TradingSecuritiesandAvailableforSaleSecuritiesMember2020-01-012020-06-300001363829esgr:StandardPoorsFitchAAARatingMemberMemberus-gaap:ExternalCreditRatingInvestmentGradeMemberus-gaap:ResidentialMortgageBackedSecuritiesMember2020-06-300001363829esgr:StandardPoorsFitchAARatingMemberus-gaap:ExternalCreditRatingInvestmentGradeMemberus-gaap:ResidentialMortgageBackedSecuritiesMember2020-06-300001363829us-gaap:ExternalCreditRatingInvestmentGradeMemberesgr:StandardPoorsFitchARatingMemberus-gaap:ResidentialMortgageBackedSecuritiesMember2020-06-300001363829esgr:StandardPoorsFitchBBBRatingMemberus-gaap:ExternalCreditRatingInvestmentGradeMemberus-gaap:ResidentialMortgageBackedSecuritiesMember2020-06-300001363829us-gaap:ExternalCreditRatingNonInvestmentGradeMemberus-gaap:ResidentialMortgageBackedSecuritiesMember2020-06-300001363829esgr:NotRatedMemberus-gaap:ResidentialMortgageBackedSecuritiesMember2020-06-300001363829esgr:MarketableSecuritiesMemberus-gaap:CommercialMortgageBackedSecuritiesMemberesgr:PortfolioConcentrationRiskMemberesgr:TradingSecuritiesandAvailableforSaleSecuritiesMember2020-01-012020-06-300001363829us-gaap:CommercialMortgageBackedSecuritiesMemberesgr:StandardPoorsFitchAAARatingMemberMemberus-gaap:ExternalCreditRatingInvestmentGradeMember2020-06-300001363829us-gaap:CommercialMortgageBackedSecuritiesMemberesgr:StandardPoorsFitchAARatingMemberus-gaap:ExternalCreditRatingInvestmentGradeMember2020-06-300001363829us-gaap:CommercialMortgageBackedSecuritiesMemberus-gaap:ExternalCreditRatingInvestmentGradeMemberesgr:StandardPoorsFitchARatingMember2020-06-300001363829esgr:StandardPoorsFitchBBBRatingMemberus-gaap:CommercialMortgageBackedSecuritiesMemberus-gaap:ExternalCreditRatingInvestmentGradeMember2020-06-300001363829us-gaap:ExternalCreditRatingNonInvestmentGradeMemberus-gaap:CommercialMortgageBackedSecuritiesMember2020-06-300001363829us-gaap:CommercialMortgageBackedSecuritiesMemberesgr:NotRatedMember2020-06-300001363829esgr:MarketableSecuritiesMemberesgr:PortfolioConcentrationRiskMemberus-gaap:AssetBackedSecuritiesMemberesgr:TradingSecuritiesandAvailableforSaleSecuritiesMember2020-01-012020-06-300001363829esgr:StandardPoorsFitchAAARatingMemberMemberus-gaap:ExternalCreditRatingInvestmentGradeMemberus-gaap:AssetBackedSecuritiesMember2020-06-300001363829esgr:StandardPoorsFitchAARatingMemberus-gaap:ExternalCreditRatingInvestmentGradeMemberus-gaap:AssetBackedSecuritiesMember2020-06-300001363829us-gaap:ExternalCreditRatingInvestmentGradeMemberus-gaap:AssetBackedSecuritiesMemberesgr:StandardPoorsFitchARatingMember2020-06-300001363829esgr:StandardPoorsFitchBBBRatingMemberus-gaap:ExternalCreditRatingInvestmentGradeMemberus-gaap:AssetBackedSecuritiesMember2020-06-300001363829us-gaap:ExternalCreditRatingNonInvestmentGradeMemberus-gaap:AssetBackedSecuritiesMember2020-06-300001363829esgr:NotRatedMemberus-gaap:AssetBackedSecuritiesMember2020-06-300001363829esgr:MarketableSecuritiesMemberesgr:PortfolioConcentrationRiskMemberesgr:TradingSecuritiesandAvailableforSaleSecuritiesMember2020-01-012020-06-300001363829esgr:StandardPoorsFitchAAARatingMemberMemberus-gaap:ExternalCreditRatingInvestmentGradeMember2020-06-300001363829esgr:StandardPoorsFitchAARatingMemberus-gaap:ExternalCreditRatingInvestmentGradeMember2020-06-300001363829us-gaap:ExternalCreditRatingInvestmentGradeMemberesgr:StandardPoorsFitchARatingMember2020-06-300001363829esgr:StandardPoorsFitchBBBRatingMemberus-gaap:ExternalCreditRatingInvestmentGradeMember2020-06-300001363829us-gaap:ExternalCreditRatingNonInvestmentGradeMember2020-06-300001363829esgr:NotRatedMember2020-06-300001363829esgr:MarketableSecuritiesMemberesgr:StandardPoorsFitchAAARatingMemberMemberesgr:CreditRatingConcentrationRiskMemberus-gaap:ExternalCreditRatingInvestmentGradeMember2020-01-012020-06-300001363829esgr:MarketableSecuritiesMemberesgr:StandardPoorsFitchAARatingMemberesgr:CreditRatingConcentrationRiskMemberus-gaap:ExternalCreditRatingInvestmentGradeMember2020-01-012020-06-300001363829esgr:MarketableSecuritiesMemberesgr:CreditRatingConcentrationRiskMemberus-gaap:ExternalCreditRatingInvestmentGradeMemberesgr:StandardPoorsFitchARatingMember2020-01-012020-06-300001363829esgr:MarketableSecuritiesMemberesgr:StandardPoorsFitchBBBRatingMemberesgr:CreditRatingConcentrationRiskMemberus-gaap:ExternalCreditRatingInvestmentGradeMember2020-01-012020-06-300001363829esgr:MarketableSecuritiesMemberus-gaap:ExternalCreditRatingNonInvestmentGradeMemberesgr:CreditRatingConcentrationRiskMember2020-01-012020-06-300001363829esgr:MarketableSecuritiesMemberesgr:NotRatedMemberesgr:CreditRatingConcentrationRiskMember2020-01-012020-06-300001363829us-gaap:ForeignGovernmentDebtSecuritiesMember2020-06-30esgr:Security0001363829esgr:OtherGovernmentAgenciesDebtSecuritiesMember2020-03-310001363829us-gaap:CorporateDebtSecuritiesMember2020-03-310001363829us-gaap:CommercialMortgageBackedSecuritiesMember2020-03-310001363829us-gaap:AssetBackedSecuritiesMember2020-03-3100013638292020-03-310001363829esgr:OtherGovernmentAgenciesDebtSecuritiesMember2020-04-012020-06-300001363829us-gaap:CorporateDebtSecuritiesMember2020-04-012020-06-300001363829us-gaap:CommercialMortgageBackedSecuritiesMember2020-04-012020-06-300001363829us-gaap:AssetBackedSecuritiesMember2020-04-012020-06-300001363829srt:CumulativeEffectPeriodOfAdoptionAdjustmentMemberesgr:OtherGovernmentAgenciesDebtSecuritiesMember2019-12-310001363829srt:CumulativeEffectPeriodOfAdoptionAdjustmentMemberus-gaap:CorporateDebtSecuritiesMember2019-12-310001363829srt:CumulativeEffectPeriodOfAdoptionAdjustmentMemberus-gaap:CommercialMortgageBackedSecuritiesMember2019-12-310001363829srt:CumulativeEffectPeriodOfAdoptionAdjustmentMemberus-gaap:AssetBackedSecuritiesMember2019-12-310001363829esgr:OtherGovernmentAgenciesDebtSecuritiesMember2020-01-012020-06-300001363829us-gaap:CorporateDebtSecuritiesMember2020-01-012020-06-300001363829us-gaap:CommercialMortgageBackedSecuritiesMember2020-01-012020-06-300001363829us-gaap:AssetBackedSecuritiesMember2020-01-012020-06-300001363829us-gaap:AvailableforsaleSecuritiesMember2019-12-310001363829esgr:PublicEquityFundsMember2020-06-300001363829esgr:PublicEquityFundsMember2019-12-310001363829us-gaap:ExchangeTradedFundsMember2020-06-300001363829us-gaap:ExchangeTradedFundsMember2019-12-310001363829us-gaap:PrivateEquityFundsMember2020-06-300001363829us-gaap:PrivateEquityFundsMember2019-12-310001363829esgr:AmTrustFinancialServicesInc.Member2020-06-300001363829esgr:AmTrustFinancialServicesInc.Member2019-12-310001363829us-gaap:HedgeFundsMember2020-06-300001363829us-gaap:HedgeFundsMember2019-12-310001363829us-gaap:FixedIncomeFundsMember2020-06-300001363829us-gaap:FixedIncomeFundsMember2019-12-310001363829us-gaap:EquityFundsMember2020-06-300001363829us-gaap:EquityFundsMember2019-12-310001363829us-gaap:PrivateEquityFundsMember2020-06-300001363829us-gaap:PrivateEquityFundsMember2019-12-310001363829esgr:CLOEquityMember2020-06-300001363829esgr:CLOEquityMember2019-12-310001363829esgr:CLOEquityFundsMember2020-06-300001363829esgr:CLOEquityFundsMember2019-12-310001363829esgr:PrivateCreditFundsMember2020-06-300001363829esgr:PrivateCreditFundsMember2019-12-310001363829us-gaap:OtherLongTermInvestmentsMember2020-06-300001363829us-gaap:OtherLongTermInvestmentsMember2019-12-310001363829us-gaap:OtherInvestmentsMember2020-01-012020-06-300001363829esgr:RestrictionPeriodLessThanOneYearMemberus-gaap:HedgeFundsMember2020-06-300001363829us-gaap:HedgeFundsMemberesgr:RestrictionPeriodOneToTwoYearsMember2020-06-300001363829esgr:RestrictionPeriodTwoToThreeYearsMemberus-gaap:HedgeFundsMember2020-06-300001363829esgr:RestrictionPeriodMoreThanThreeYearsMemberus-gaap:HedgeFundsMember2020-06-300001363829esgr:RestrictionPeriodNotEligibleRestrictedMemberus-gaap:HedgeFundsMember2020-06-300001363829esgr:RestrictionPeriodLessThanOneYearMemberus-gaap:FixedIncomeFundsMember2020-06-300001363829us-gaap:FixedIncomeFundsMemberesgr:RestrictionPeriodOneToTwoYearsMember2020-06-300001363829us-gaap:FixedIncomeFundsMemberesgr:RestrictionPeriodTwoToThreeYearsMember2020-06-300001363829us-gaap:FixedIncomeFundsMemberesgr:RestrictionPeriodMoreThanThreeYearsMember2020-06-300001363829us-gaap:FixedIncomeFundsMemberesgr:RestrictionPeriodNotEligibleRestrictedMember2020-06-300001363829us-gaap:EquityFundsMemberesgr:RestrictionPeriodLessThanOneYearMember2020-06-300001363829us-gaap:EquityFundsMemberesgr:RestrictionPeriodOneToTwoYearsMember2020-06-300001363829us-gaap:EquityFundsMemberesgr:RestrictionPeriodTwoToThreeYearsMember2020-06-300001363829us-gaap:EquityFundsMemberesgr:RestrictionPeriodMoreThanThreeYearsMember2020-06-300001363829us-gaap:EquityFundsMemberesgr:RestrictionPeriodNotEligibleRestrictedMember2020-06-300001363829esgr:RestrictionPeriodLessThanOneYearMemberus-gaap:PrivateEquityFundsMember2020-06-300001363829us-gaap:PrivateEquityFundsMemberesgr:RestrictionPeriodOneToTwoYearsMember2020-06-300001363829esgr:RestrictionPeriodTwoToThreeYearsMemberus-gaap:PrivateEquityFundsMember2020-06-300001363829us-gaap:PrivateEquityFundsMemberesgr:RestrictionPeriodMoreThanThreeYearsMember2020-06-300001363829esgr:RestrictionPeriodNotEligibleRestrictedMemberus-gaap:PrivateEquityFundsMember2020-06-300001363829esgr:CLOEquityMemberesgr:RestrictionPeriodLessThanOneYearMember2020-06-300001363829esgr:CLOEquityMemberesgr:RestrictionPeriodOneToTwoYearsMember2020-06-300001363829esgr:CLOEquityMemberesgr:RestrictionPeriodTwoToThreeYearsMember2020-06-300001363829esgr:CLOEquityMemberesgr:RestrictionPeriodMoreThanThreeYearsMember2020-06-300001363829esgr:CLOEquityMemberesgr:RestrictionPeriodNotEligibleRestrictedMember2020-06-300001363829esgr:CLOEquityFundsMemberesgr:RestrictionPeriodLessThanOneYearMember2020-06-300001363829esgr:CLOEquityFundsMemberesgr:RestrictionPeriodOneToTwoYearsMember2020-06-300001363829esgr:CLOEquityFundsMemberesgr:RestrictionPeriodTwoToThreeYearsMember2020-06-300001363829esgr:CLOEquityFundsMemberesgr:RestrictionPeriodMoreThanThreeYearsMember2020-06-300001363829esgr:CLOEquityFundsMemberesgr:RestrictionPeriodNotEligibleRestrictedMember2020-06-300001363829esgr:PrivateCreditFundsMemberesgr:RestrictionPeriodLessThanOneYearMember2020-06-300001363829esgr:PrivateCreditFundsMemberesgr:RestrictionPeriodOneToTwoYearsMember2020-06-300001363829esgr:PrivateCreditFundsMemberesgr:RestrictionPeriodTwoToThreeYearsMember2020-06-300001363829esgr:PrivateCreditFundsMemberesgr:RestrictionPeriodMoreThanThreeYearsMember2020-06-300001363829esgr:PrivateCreditFundsMemberesgr:RestrictionPeriodNotEligibleRestrictedMember2020-06-300001363829esgr:RestrictionPeriodLessThanOneYearMemberus-gaap:OtherLongTermInvestmentsMember2020-06-300001363829esgr:RestrictionPeriodOneToTwoYearsMemberus-gaap:OtherLongTermInvestmentsMember2020-06-300001363829esgr:RestrictionPeriodTwoToThreeYearsMemberus-gaap:OtherLongTermInvestmentsMember2020-06-300001363829esgr:RestrictionPeriodMoreThanThreeYearsMemberus-gaap:OtherLongTermInvestmentsMember2020-06-300001363829esgr:RestrictionPeriodNotEligibleRestrictedMemberus-gaap:OtherLongTermInvestmentsMember2020-06-300001363829esgr:RestrictionPeriodLessThanOneYearMember2020-06-300001363829esgr:RestrictionPeriodOneToTwoYearsMember2020-06-300001363829esgr:RestrictionPeriodTwoToThreeYearsMember2020-06-300001363829esgr:RestrictionPeriodMoreThanThreeYearsMember2020-06-300001363829esgr:RestrictionPeriodNotEligibleRestrictedMember2020-06-300001363829esgr:EnhanzedReMember2020-06-300001363829esgr:EnhanzedReMember2019-12-310001363829esgr:CitcoIIILimitedMember2020-06-300001363829esgr:CitcoIIILimitedMember2019-12-310001363829esgr:MonumentMember2020-06-300001363829esgr:MonumentMember2019-12-310001363829esgr:ClearSpringMember2020-06-300001363829esgr:ClearSpringMember2019-12-310001363829esgr:OtherEquityMethodInvestmentsMember2020-06-300001363829esgr:OtherEquityMethodInvestmentsMember2019-12-310001363829us-gaap:EquityMethodInvestmentsMember2020-06-300001363829esgr:FundsHeldDirectlyManagedFairValueOptionMember2020-06-300001363829esgr:FundsHeldDirectlyManagedVariableReturnOptionMember2020-06-300001363829esgr:FundsHeldDirectlyManagedFairValueOptionMember2019-12-310001363829esgr:FundsHeldDirectlyManagedVariableReturnOptionMember2019-12-310001363829esgr:AspenMember2020-01-012020-06-300001363829esgr:AXAGroupMember2020-01-012020-06-300001363829us-gaap:FixedMaturitiesMember2020-04-012020-06-300001363829us-gaap:FixedMaturitiesMember2019-04-012019-06-300001363829us-gaap:FixedMaturitiesMember2020-01-012020-06-300001363829us-gaap:FixedMaturitiesMember2019-01-012019-06-300001363829esgr:ShortTermInvestmentsAndCashEquivalentsMember2020-04-012020-06-300001363829esgr:ShortTermInvestmentsAndCashEquivalentsMember2019-04-012019-06-300001363829esgr:ShortTermInvestmentsAndCashEquivalentsMember2020-01-012020-06-300001363829esgr:ShortTermInvestmentsAndCashEquivalentsMember2019-01-012019-06-300001363829esgr:FundsHeldMember2020-04-012020-06-300001363829esgr:FundsHeldMember2019-04-012019-06-300001363829esgr:FundsHeldMember2020-01-012020-06-300001363829esgr:FundsHeldMember2019-01-012019-06-300001363829esgr:FundsHeldDirectlyManagedMember2020-04-012020-06-300001363829esgr:FundsHeldDirectlyManagedMember2019-04-012019-06-300001363829esgr:FundsHeldDirectlyManagedMember2020-01-012020-06-300001363829esgr:FundsHeldDirectlyManagedMember2019-01-012019-06-300001363829esgr:FixedMaturitiesandCashandCashEquivalentsMember2020-04-012020-06-300001363829esgr:FixedMaturitiesandCashandCashEquivalentsMember2019-04-012019-06-300001363829esgr:FixedMaturitiesandCashandCashEquivalentsMember2020-01-012020-06-300001363829esgr:FixedMaturitiesandCashandCashEquivalentsMember2019-01-012019-06-300001363829us-gaap:EquitySecuritiesMember2020-04-012020-06-300001363829us-gaap:EquitySecuritiesMember2019-04-012019-06-300001363829us-gaap:EquitySecuritiesMember2020-01-012020-06-300001363829us-gaap:EquitySecuritiesMember2019-01-012019-06-300001363829us-gaap:OtherInvestmentsMember2020-04-012020-06-300001363829us-gaap:OtherInvestmentsMember2019-04-012019-06-300001363829us-gaap:OtherInvestmentsMember2019-01-012019-06-300001363829esgr:EquitiesandOtherInvestmentsMember2020-04-012020-06-300001363829esgr:EquitiesandOtherInvestmentsMember2019-04-012019-06-300001363829esgr:EquitiesandOtherInvestmentsMember2020-01-012020-06-300001363829esgr:EquitiesandOtherInvestmentsMember2019-01-012019-06-300001363829us-gaap:DebtSecuritiesMember2020-04-012020-06-300001363829us-gaap:DebtSecuritiesMember2019-04-012019-06-300001363829us-gaap:DebtSecuritiesMember2020-01-012020-06-300001363829us-gaap:DebtSecuritiesMember2019-01-012019-06-300001363829us-gaap:DiscontinuedOperationsHeldForSaleOrDisposedOfBySaleMember2020-04-012020-06-300001363829us-gaap:DiscontinuedOperationsHeldForSaleOrDisposedOfBySaleMember2019-04-012019-06-300001363829us-gaap:DiscontinuedOperationsHeldForSaleOrDisposedOfBySaleMember2020-01-012020-06-300001363829us-gaap:DiscontinuedOperationsHeldForSaleOrDisposedOfBySaleMember2019-01-012019-06-300001363829us-gaap:SegmentContinuingOperationsMember2020-04-012020-06-300001363829us-gaap:SegmentContinuingOperationsMember2019-04-012019-06-300001363829us-gaap:SegmentContinuingOperationsMember2020-01-012020-06-300001363829us-gaap:SegmentContinuingOperationsMember2019-01-012019-06-300001363829us-gaap:AssetPledgedAsCollateralMember2020-06-300001363829us-gaap:AssetPledgedAsCollateralMember2019-12-31esgr:Segment0001363829us-gaap:ForeignExchangeForwardMembercurrency:AUDus-gaap:DesignatedAsHedgingInstrumentMember2020-06-300001363829us-gaap:ForeignExchangeForwardMembercurrency:AUDus-gaap:DesignatedAsHedgingInstrumentMember2019-12-310001363829us-gaap:ForeignExchangeForwardMembercurrency:EURus-gaap:DesignatedAsHedgingInstrumentMember2020-06-300001363829us-gaap:ForeignExchangeForwardMembercurrency:EURus-gaap:DesignatedAsHedgingInstrumentMember2019-12-310001363829us-gaap:ForeignExchangeForwardMemberus-gaap:DesignatedAsHedgingInstrumentMembercurrency:GBP2020-06-300001363829us-gaap:ForeignExchangeForwardMemberus-gaap:DesignatedAsHedgingInstrumentMembercurrency:GBP2019-12-310001363829us-gaap:ForeignExchangeForwardMemberus-gaap:DesignatedAsHedgingInstrumentMember2020-06-300001363829us-gaap:ForeignExchangeForwardMemberus-gaap:DesignatedAsHedgingInstrumentMember2019-12-310001363829us-gaap:ForeignExchangeForwardMembercurrency:AUDus-gaap:DesignatedAsHedgingInstrumentMember2020-04-012020-06-300001363829us-gaap:ForeignExchangeForwardMembercurrency:AUDus-gaap:DesignatedAsHedgingInstrumentMember2019-04-012019-06-300001363829us-gaap:ForeignExchangeForwardMembercurrency:AUDus-gaap:DesignatedAsHedgingInstrumentMember2020-01-012020-06-300001363829us-gaap:ForeignExchangeForwardMembercurrency:AUDus-gaap:DesignatedAsHedgingInstrumentMember2019-01-012019-06-300001363829us-gaap:ForeignExchangeForwardMembercurrency:EURus-gaap:DesignatedAsHedgingInstrumentMember2020-04-012020-06-300001363829us-gaap:ForeignExchangeForwardMembercurrency:EURus-gaap:DesignatedAsHedgingInstrumentMember2019-04-012019-06-300001363829us-gaap:ForeignExchangeForwardMembercurrency:EURus-gaap:DesignatedAsHedgingInstrumentMember2020-01-012020-06-300001363829us-gaap:ForeignExchangeForwardMembercurrency:EURus-gaap:DesignatedAsHedgingInstrumentMember2019-01-012019-06-300001363829us-gaap:ForeignExchangeForwardMemberus-gaap:DesignatedAsHedgingInstrumentMembercurrency:GBP2020-04-012020-06-300001363829us-gaap:ForeignExchangeForwardMemberus-gaap:DesignatedAsHedgingInstrumentMembercurrency:GBP2019-04-012019-06-300001363829us-gaap:ForeignExchangeForwardMemberus-gaap:DesignatedAsHedgingInstrumentMembercurrency:GBP2020-01-012020-06-300001363829us-gaap:ForeignExchangeForwardMemberus-gaap:DesignatedAsHedgingInstrumentMembercurrency:GBP2019-01-012019-06-300001363829us-gaap:ForeignExchangeForwardMemberus-gaap:DesignatedAsHedgingInstrumentMember2020-04-012020-06-300001363829us-gaap:ForeignExchangeForwardMemberus-gaap:DesignatedAsHedgingInstrumentMember2019-04-012019-06-300001363829us-gaap:ForeignExchangeForwardMemberus-gaap:DesignatedAsHedgingInstrumentMember2020-01-012020-06-300001363829us-gaap:ForeignExchangeForwardMemberus-gaap:DesignatedAsHedgingInstrumentMember2019-01-012019-06-300001363829us-gaap:ForeignExchangeForwardMemberus-gaap:NondesignatedMembercurrency:AUD2020-06-300001363829us-gaap:ForeignExchangeForwardMemberus-gaap:NondesignatedMembercurrency:AUD2019-12-310001363829us-gaap:ForeignExchangeForwardMemberus-gaap:NondesignatedMembercurrency:CAD2020-06-300001363829us-gaap:ForeignExchangeForwardMemberus-gaap:NondesignatedMembercurrency:CAD2019-12-310001363829us-gaap:ForeignExchangeForwardMemberus-gaap:NondesignatedMembercurrency:EUR2020-06-300001363829us-gaap:ForeignExchangeForwardMemberus-gaap:NondesignatedMembercurrency:EUR2019-12-310001363829us-gaap:ForeignExchangeForwardMemberus-gaap:NondesignatedMembercurrency:GBP2020-06-300001363829us-gaap:ForeignExchangeForwardMemberus-gaap:NondesignatedMembercurrency:GBP2019-12-310001363829us-gaap:ForeignExchangeForwardMemberus-gaap:NondesignatedMember2020-06-300001363829us-gaap:ForeignExchangeForwardMemberus-gaap:NondesignatedMember2019-12-310001363829us-gaap:ForeignExchangeForwardMemberus-gaap:NondesignatedMembercurrency:AUD2020-04-012020-06-300001363829us-gaap:ForeignExchangeForwardMemberus-gaap:NondesignatedMembercurrency:AUD2019-04-012019-06-300001363829us-gaap:ForeignExchangeForwardMemberus-gaap:NondesignatedMembercurrency:AUD2020-01-012020-06-300001363829us-gaap:ForeignExchangeForwardMemberus-gaap:NondesignatedMembercurrency:AUD2019-01-012019-06-300001363829us-gaap:ForeignExchangeForwardMemberus-gaap:NondesignatedMembercurrency:CAD2020-04-012020-06-300001363829us-gaap:ForeignExchangeForwardMemberus-gaap:NondesignatedMembercurrency:CAD2019-04-012019-06-300001363829us-gaap:ForeignExchangeForwardMemberus-gaap:NondesignatedMembercurrency:CAD2020-01-012020-06-300001363829us-gaap:ForeignExchangeForwardMemberus-gaap:NondesignatedMembercurrency:CAD2019-01-012019-06-300001363829us-gaap:ForeignExchangeForwardMemberus-gaap:NondesignatedMembercurrency:EUR2020-04-012020-06-300001363829us-gaap:ForeignExchangeForwardMemberus-gaap:NondesignatedMembercurrency:EUR2019-04-012019-06-300001363829us-gaap:ForeignExchangeForwardMemberus-gaap:NondesignatedMembercurrency:EUR2020-01-012020-06-300001363829us-gaap:ForeignExchangeForwardMemberus-gaap:NondesignatedMembercurrency:EUR2019-01-012019-06-300001363829us-gaap:ForeignExchangeForwardMemberus-gaap:NondesignatedMembercurrency:GBP2020-04-012020-06-300001363829us-gaap:ForeignExchangeForwardMemberus-gaap:NondesignatedMembercurrency:GBP2019-04-012019-06-300001363829us-gaap:ForeignExchangeForwardMemberus-gaap:NondesignatedMembercurrency:GBP2020-01-012020-06-300001363829us-gaap:ForeignExchangeForwardMemberus-gaap:NondesignatedMembercurrency:GBP2019-01-012019-06-300001363829us-gaap:ForeignExchangeForwardMemberus-gaap:NondesignatedMember2020-04-012020-06-300001363829us-gaap:ForeignExchangeForwardMemberus-gaap:NondesignatedMember2019-04-012019-06-300001363829us-gaap:ForeignExchangeForwardMemberus-gaap:NondesignatedMember2020-01-012020-06-300001363829us-gaap:ForeignExchangeForwardMemberus-gaap:NondesignatedMember2019-01-012019-06-300001363829us-gaap:CreditRiskContractMember2020-06-300001363829esgr:GovernmentBondFutureContractMemberus-gaap:LongMember2020-06-300001363829esgr:GovernmentBondFutureContractMemberus-gaap:ShortMember2020-06-300001363829us-gaap:ForeignExchangeForwardMemberus-gaap:LongMember2020-06-300001363829us-gaap:ForeignExchangeForwardMemberus-gaap:ShortMember2020-06-300001363829esgr:CreditRiskGovernmentBondFutureForeignCurrencyForwardContractsMember2020-06-300001363829esgr:GovernmentBondFutureContractMember2020-04-012020-06-300001363829esgr:GovernmentBondFutureContractMember2020-01-012020-06-300001363829us-gaap:ForeignExchangeForwardMember2020-04-012020-06-300001363829us-gaap:ForeignExchangeForwardMember2020-01-012020-06-300001363829us-gaap:NondesignatedMemberus-gaap:StockOptionMember2020-04-012020-06-300001363829us-gaap:NondesignatedMemberus-gaap:StockOptionMember2020-01-012020-06-300001363829us-gaap:NondesignatedMemberus-gaap:StockOptionMember2018-12-310001363829us-gaap:NondesignatedMemberus-gaap:StockOptionMember2019-04-012019-06-300001363829us-gaap:NondesignatedMemberus-gaap:StockOptionMember2019-01-012019-06-300001363829us-gaap:NondesignatedMemberus-gaap:StockOptionMember2019-12-310001363829us-gaap:InterestRateSwapMember2019-10-310001363829us-gaap:InterestRateSwapMember2020-04-012020-06-300001363829us-gaap:InterestRateSwapMember2020-01-012020-06-300001363829us-gaap:InterestRateSwapMember2019-10-012020-04-070001363829us-gaap:CarryingReportedAmountFairValueDisclosureMemberus-gaap:InterestRateSwapMember2019-12-310001363829esgr:NonlifeRunoffSegmentMember2020-06-300001363829esgr:AtriumSegmentMember2020-06-300001363829esgr:StarStoneSegmentMember2020-06-300001363829esgr:NonlifeRunoffSegmentMember2019-12-310001363829esgr:AtriumSegmentMember2019-12-310001363829esgr:StarStoneSegmentMember2019-12-310001363829esgr:NonLifeRunOffandStarStoneSegmentMember2020-01-012020-06-300001363829esgr:NonlifeRunoffSegmentMemberesgr:TopTenReinsurersMemberus-gaap:ReinsurerConcentrationRiskMemberus-gaap:ReinsuranceRecoverableMember2020-06-300001363829esgr:AtriumSegmentMemberesgr:TopTenReinsurersMemberus-gaap:ReinsurerConcentrationRiskMemberus-gaap:ReinsuranceRecoverableMember2020-06-300001363829esgr:TopTenReinsurersMemberus-gaap:ReinsurerConcentrationRiskMemberesgr:StarStoneSegmentMemberus-gaap:ReinsuranceRecoverableMember2020-06-300001363829esgr:TopTenReinsurersMemberus-gaap:ReinsurerConcentrationRiskMemberus-gaap:ReinsuranceRecoverableMember2020-06-300001363829esgr:TopTenReinsurersMemberus-gaap:ReinsurerConcentrationRiskMemberus-gaap:ReinsuranceRecoverableMember2020-01-012020-06-300001363829esgr:NonlifeRunoffSegmentMemberus-gaap:ReinsurerConcentrationRiskMemberus-gaap:ReinsuranceRecoverableMemberesgr:OtherReinsurersBalancesGreaterThanOneMillionDollarsMember2020-06-300001363829esgr:AtriumSegmentMemberus-gaap:ReinsurerConcentrationRiskMemberus-gaap:ReinsuranceRecoverableMemberesgr:OtherReinsurersBalancesGreaterThanOneMillionDollarsMember2020-06-300001363829us-gaap:ReinsurerConcentrationRiskMemberesgr:StarStoneSegmentMemberus-gaap:ReinsuranceRecoverableMemberesgr:OtherReinsurersBalancesGreaterThanOneMillionDollarsMember2020-06-300001363829us-gaap:ReinsurerConcentrationRiskMemberus-gaap:ReinsuranceRecoverableMemberesgr:OtherReinsurersBalancesGreaterThanOneMillionDollarsMember2020-06-300001363829us-gaap:ReinsurerConcentrationRiskMemberus-gaap:ReinsuranceRecoverableMemberesgr:OtherReinsurersBalancesGreaterThanOneMillionDollarsMember2020-01-012020-06-300001363829esgr:NonlifeRunoffSegmentMemberus-gaap:ReinsurerConcentrationRiskMemberus-gaap:ReinsuranceRecoverableMemberesgr:OtherReinsurersBalancesLessThanOneMillionDollarsMember2020-06-300001363829esgr:AtriumSegmentMemberus-gaap:ReinsurerConcentrationRiskMemberus-gaap:ReinsuranceRecoverableMemberesgr:OtherReinsurersBalancesLessThanOneMillionDollarsMember2020-06-300001363829us-gaap:ReinsurerConcentrationRiskMemberesgr:StarStoneSegmentMemberus-gaap:ReinsuranceRecoverableMemberesgr:OtherReinsurersBalancesLessThanOneMillionDollarsMember2020-06-300001363829us-gaap:ReinsurerConcentrationRiskMemberus-gaap:ReinsuranceRecoverableMemberesgr:OtherReinsurersBalancesLessThanOneMillionDollarsMember2020-06-300001363829us-gaap:ReinsurerConcentrationRiskMemberus-gaap:ReinsuranceRecoverableMemberesgr:OtherReinsurersBalancesLessThanOneMillionDollarsMember2020-01-012020-06-300001363829esgr:NonlifeRunoffSegmentMemberus-gaap:ReinsurerConcentrationRiskMemberus-gaap:ReinsuranceRecoverableMember2020-06-300001363829esgr:AtriumSegmentMemberus-gaap:ReinsurerConcentrationRiskMemberus-gaap:ReinsuranceRecoverableMember2020-06-300001363829us-gaap:ReinsurerConcentrationRiskMemberesgr:StarStoneSegmentMemberus-gaap:ReinsuranceRecoverableMember2020-06-300001363829us-gaap:ReinsurerConcentrationRiskMemberus-gaap:ReinsuranceRecoverableMember2020-06-300001363829us-gaap:ReinsurerConcentrationRiskMemberus-gaap:ReinsuranceRecoverableMember2020-01-012020-06-300001363829esgr:NonlifeRunoffSegmentMemberesgr:TopTenReinsurersMemberus-gaap:ReinsurerConcentrationRiskMemberus-gaap:ReinsuranceRecoverableMember2019-12-310001363829esgr:AtriumSegmentMemberesgr:TopTenReinsurersMemberus-gaap:ReinsurerConcentrationRiskMemberus-gaap:ReinsuranceRecoverableMember2019-12-310001363829esgr:TopTenReinsurersMemberus-gaap:ReinsurerConcentrationRiskMemberesgr:StarStoneSegmentMemberus-gaap:ReinsuranceRecoverableMember2019-12-310001363829esgr:TopTenReinsurersMemberus-gaap:ReinsurerConcentrationRiskMemberus-gaap:ReinsuranceRecoverableMember2019-12-310001363829esgr:TopTenReinsurersMemberus-gaap:ReinsurerConcentrationRiskMemberus-gaap:ReinsuranceRecoverableMember2019-01-012019-12-310001363829esgr:NonlifeRunoffSegmentMemberus-gaap:ReinsurerConcentrationRiskMemberus-gaap:ReinsuranceRecoverableMemberesgr:OtherReinsurersBalancesGreaterThanOneMillionDollarsMember2019-12-310001363829esgr:AtriumSegmentMemberus-gaap:ReinsurerConcentrationRiskMemberus-gaap:ReinsuranceRecoverableMemberesgr:OtherReinsurersBalancesGreaterThanOneMillionDollarsMember2019-12-310001363829us-gaap:ReinsurerConcentrationRiskMemberesgr:StarStoneSegmentMemberus-gaap:ReinsuranceRecoverableMemberesgr:OtherReinsurersBalancesGreaterThanOneMillionDollarsMember2019-12-310001363829us-gaap:ReinsurerConcentrationRiskMemberus-gaap:ReinsuranceRecoverableMemberesgr:OtherReinsurersBalancesGreaterThanOneMillionDollarsMember2019-12-310001363829us-gaap:ReinsurerConcentrationRiskMemberus-gaap:ReinsuranceRecoverableMemberesgr:OtherReinsurersBalancesGreaterThanOneMillionDollarsMember2019-01-012019-12-310001363829esgr:NonlifeRunoffSegmentMemberus-gaap:ReinsurerConcentrationRiskMemberus-gaap:ReinsuranceRecoverableMemberesgr:OtherReinsurersBalancesLessThanOneMillionDollarsMember2019-12-310001363829esgr:AtriumSegmentMemberus-gaap:ReinsurerConcentrationRiskMemberus-gaap:ReinsuranceRecoverableMemberesgr:OtherReinsurersBalancesLessThanOneMillionDollarsMember2019-12-310001363829us-gaap:ReinsurerConcentrationRiskMemberesgr:StarStoneSegmentMemberus-gaap:ReinsuranceRecoverableMemberesgr:OtherReinsurersBalancesLessThanOneMillionDollarsMember2019-12-310001363829us-gaap:ReinsurerConcentrationRiskMemberus-gaap:ReinsuranceRecoverableMemberesgr:OtherReinsurersBalancesLessThanOneMillionDollarsMember2019-12-310001363829us-gaap:ReinsurerConcentrationRiskMemberus-gaap:ReinsuranceRecoverableMemberesgr:OtherReinsurersBalancesLessThanOneMillionDollarsMember2019-01-012019-12-310001363829esgr:NonlifeRunoffSegmentMemberus-gaap:ReinsurerConcentrationRiskMemberus-gaap:ReinsuranceRecoverableMember2019-12-310001363829esgr:AtriumSegmentMemberus-gaap:ReinsurerConcentrationRiskMemberus-gaap:ReinsuranceRecoverableMember2019-12-310001363829us-gaap:ReinsurerConcentrationRiskMemberesgr:StarStoneSegmentMemberus-gaap:ReinsuranceRecoverableMember2019-12-310001363829us-gaap:ReinsurerConcentrationRiskMemberus-gaap:ReinsuranceRecoverableMember2019-12-310001363829us-gaap:ReinsurerConcentrationRiskMemberus-gaap:ReinsuranceRecoverableMember2019-01-012019-12-31esgr:reinsurer0001363829esgr:TopTenReinsurersRatedAMinusOrHigherMemberus-gaap:ReinsurerConcentrationRiskMemberus-gaap:ReinsuranceRecoverableMember2020-06-300001363829esgr:TopTenReinsurersRatedAMinusOrHigherMemberus-gaap:ReinsurerConcentrationRiskMemberus-gaap:ReinsuranceRecoverableMember2019-12-310001363829us-gaap:ReinsurerConcentrationRiskMemberus-gaap:ReinsuranceRecoverableMemberesgr:TopTenReinsurersNonRatedReinsurersMember2020-06-300001363829us-gaap:ReinsurerConcentrationRiskMemberus-gaap:ReinsuranceRecoverableMemberesgr:TopTenReinsurersNonRatedReinsurersMember2019-12-310001363829us-gaap:EquityMethodInvesteeMemberesgr:HannoverRuckSEMemberus-gaap:ReinsurerConcentrationRiskMember2020-06-300001363829us-gaap:EquityMethodInvesteeMemberesgr:HannoverRuckSEMemberus-gaap:ReinsurerConcentrationRiskMember2019-12-310001363829us-gaap:EquityMethodInvesteeMemberus-gaap:ReinsurerConcentrationRiskMemberesgr:LloydsSyndicateMember2020-06-300001363829us-gaap:EquityMethodInvesteeMemberus-gaap:ReinsurerConcentrationRiskMemberesgr:LloydsSyndicateMember2019-12-310001363829esgr:ReinsurersRatedAMinusOrAboveMember2020-06-300001363829esgr:ReinsurersRatedBelowAMinusMemberus-gaap:CededCreditRiskSecuredMember2020-06-300001363829esgr:ReinsurersRatedBelowAMinusMemberus-gaap:CededCreditRiskUnsecuredMember2020-06-300001363829esgr:ReinsurersRatedAMinusOrAboveMember2019-12-310001363829esgr:ReinsurersRatedBelowAMinusMemberus-gaap:CededCreditRiskSecuredMember2019-12-310001363829esgr:ReinsurersRatedBelowAMinusMemberus-gaap:CededCreditRiskUnsecuredMember2019-12-310001363829srt:CumulativeEffectPeriodOfAdoptionAdjustmentMember2020-03-3100013638292019-03-310001363829us-gaap:OperatingSegmentsMemberesgr:NonlifeRunoffSegmentMember2020-06-300001363829us-gaap:OperatingSegmentsMemberesgr:AtriumSegmentMember2020-06-300001363829us-gaap:OperatingSegmentsMemberesgr:StarStoneSegmentMember2020-06-300001363829esgr:CorporateAndReconcilingItemsMember2020-06-300001363829us-gaap:OperatingSegmentsMemberesgr:NonlifeRunoffSegmentMember2019-12-310001363829us-gaap:OperatingSegmentsMemberesgr:AtriumSegmentMember2019-12-310001363829us-gaap:OperatingSegmentsMemberesgr:StarStoneSegmentMember2019-12-310001363829esgr:CorporateAndReconcilingItemsMember2019-12-310001363829srt:CumulativeEffectPeriodOfAdoptionAdjustmentMember2019-03-310001363829srt:CumulativeEffectPeriodOfAdoptionAdjustmentMember2018-12-310001363829us-gaap:DiscontinuedOperationsHeldforsaleMembersrt:CumulativeEffectPeriodOfAdoptionAdjustmentMemberesgr:StarStoneUSMember2020-03-310001363829esgr:NonlifeRunoffSegmentMember2020-04-012020-06-300001363829esgr:AtriumSegmentMember2020-04-012020-06-300001363829esgr:StarStoneSegmentMember2020-04-012020-06-300001363829esgr:CorporateAndReconcilingItemsMember2020-04-012020-06-300001363829esgr:NonlifeRunoffSegmentMember2019-04-012019-06-300001363829esgr:AtriumSegmentMember2019-04-012019-06-300001363829esgr:StarStoneSegmentMember2019-04-012019-06-300001363829esgr:CorporateAndReconcilingItemsMember2019-04-012019-06-300001363829esgr:NonlifeRunoffSegmentMember2020-01-012020-06-300001363829esgr:AtriumSegmentMember2020-01-012020-06-300001363829esgr:StarStoneSegmentMember2020-01-012020-06-300001363829esgr:CorporateAndReconcilingItemsMember2020-01-012020-06-300001363829esgr:NonlifeRunoffSegmentMember2019-01-012019-06-300001363829esgr:AtriumSegmentMember2019-01-012019-06-300001363829esgr:StarStoneSegmentMember2019-01-012019-06-300001363829esgr:CorporateAndReconcilingItemsMember2019-01-012019-06-300001363829esgr:NonlifeRunoffSegmentMember2020-03-310001363829esgr:NonlifeRunoffSegmentMember2019-03-310001363829esgr:NonlifeRunoffSegmentMember2018-12-310001363829srt:CumulativeEffectPeriodOfAdoptionAdjustmentMemberesgr:NonlifeRunoffSegmentMember2020-03-310001363829srt:CumulativeEffectPeriodOfAdoptionAdjustmentMemberesgr:NonlifeRunoffSegmentMember2019-03-310001363829srt:CumulativeEffectPeriodOfAdoptionAdjustmentMemberesgr:NonlifeRunoffSegmentMember2019-12-310001363829srt:CumulativeEffectPeriodOfAdoptionAdjustmentMemberesgr:NonlifeRunoffSegmentMember2018-12-310001363829esgr:NonlifeRunoffSegmentMember2019-06-300001363829esgr:AtriumSegmentMember2020-03-310001363829esgr:AtriumSegmentMember2019-03-310001363829esgr:AtriumSegmentMember2018-12-310001363829esgr:AtriumSegmentMembersrt:CumulativeEffectPeriodOfAdoptionAdjustmentMember2020-03-310001363829esgr:AtriumSegmentMembersrt:CumulativeEffectPeriodOfAdoptionAdjustmentMember2019-03-310001363829esgr:AtriumSegmentMembersrt:CumulativeEffectPeriodOfAdoptionAdjustmentMember2019-12-310001363829esgr:AtriumSegmentMembersrt:CumulativeEffectPeriodOfAdoptionAdjustmentMember2018-12-310001363829esgr:AtriumSegmentMember2019-06-300001363829esgr:COVID19Memberesgr:AtriumSegmentMember2020-04-012020-06-300001363829esgr:COVID19Memberesgr:AtriumSegmentMember2020-01-012020-06-300001363829esgr:StarStoneSegmentMember2020-03-310001363829esgr:StarStoneSegmentMember2019-03-310001363829esgr:StarStoneSegmentMember2018-12-310001363829srt:CumulativeEffectPeriodOfAdoptionAdjustmentMemberesgr:StarStoneSegmentMember2020-03-310001363829srt:CumulativeEffectPeriodOfAdoptionAdjustmentMemberesgr:StarStoneSegmentMember2019-03-310001363829srt:CumulativeEffectPeriodOfAdoptionAdjustmentMemberesgr:StarStoneSegmentMember2019-12-310001363829srt:CumulativeEffectPeriodOfAdoptionAdjustmentMemberesgr:StarStoneSegmentMember2018-12-310001363829esgr:StarStoneSegmentMember2019-06-300001363829esgr:COVID19Memberesgr:StarStoneSegmentMember2020-04-012020-06-300001363829esgr:COVID19Memberesgr:StarStoneSegmentMember2020-01-012020-06-300001363829esgr:DefendantAsbestosLiabilitiesMember2020-06-300001363829esgr:DefendantAsbestosLiabilitiesMember2019-12-310001363829esgr:DefendantEnvironmentalLiabilitiesMember2020-06-300001363829esgr:DefendantEnvironmentalLiabilitiesMember2019-12-310001363829srt:CumulativeEffectPeriodOfAdoptionAdjustedBalanceMember2020-03-310001363829srt:CumulativeEffectPeriodOfAdoptionAdjustedBalanceMember2019-03-310001363829srt:CumulativeEffectPeriodOfAdoptionAdjustedBalanceMember2019-12-310001363829srt:CumulativeEffectPeriodOfAdoptionAdjustedBalanceMember2018-12-310001363829us-gaap:FairValueInputsLevel1Memberus-gaap:USGovernmentAgenciesDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberesgr:ShortTermInvestmentsAndFixedMaturitiesMember2020-06-300001363829us-gaap:USGovernmentAgenciesDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberesgr:ShortTermInvestmentsAndFixedMaturitiesMember2020-06-300001363829us-gaap:USGovernmentAgenciesDebtSecuritiesMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberesgr:ShortTermInvestmentsAndFixedMaturitiesMember2020-06-300001363829us-gaap:USGovernmentAgenciesDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberesgr:ShortTermInvestmentsAndFixedMaturitiesMember2020-06-300001363829us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberesgr:ShortTermInvestmentsAndFixedMaturitiesMemberesgr:UnitedKingdomGovernmentAgenciesDebtSecuritiesMember2020-06-300001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberesgr:ShortTermInvestmentsAndFixedMaturitiesMemberesgr:UnitedKingdomGovernmentAgenciesDebtSecuritiesMember2020-06-300001363829us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberesgr:ShortTermInvestmentsAndFixedMaturitiesMemberesgr:UnitedKingdomGovernmentAgenciesDebtSecuritiesMember2020-06-300001363829us-gaap:FairValueMeasurementsRecurringMemberesgr:ShortTermInvestmentsAndFixedMaturitiesMemberesgr:UnitedKingdomGovernmentAgenciesDebtSecuritiesMember2020-06-300001363829us-gaap:FairValueInputsLevel1Memberesgr:DebtSecurityGovernmentOtherMemberus-gaap:FairValueMeasurementsRecurringMemberesgr:ShortTermInvestmentsAndFixedMaturitiesMember2020-06-300001363829esgr:DebtSecurityGovernmentOtherMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberesgr:ShortTermInvestmentsAndFixedMaturitiesMember2020-06-300001363829esgr:DebtSecurityGovernmentOtherMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberesgr:ShortTermInvestmentsAndFixedMaturitiesMember2020-06-300001363829esgr:DebtSecurityGovernmentOtherMemberus-gaap:FairValueMeasurementsRecurringMemberesgr:ShortTermInvestmentsAndFixedMaturitiesMember2020-06-300001363829us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMemberesgr:ShortTermInvestmentsAndFixedMaturitiesMember2020-06-300001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberus-gaap:CorporateDebtSecuritiesMemberesgr:ShortTermInvestmentsAndFixedMaturitiesMember2020-06-300001363829us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMemberesgr:ShortTermInvestmentsAndFixedMaturitiesMember2020-06-300001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMemberesgr:ShortTermInvestmentsAndFixedMaturitiesMember2020-06-300001363829us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:MunicipalBondsMemberesgr:ShortTermInvestmentsAndFixedMaturitiesMember2020-06-300001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:MunicipalBondsMemberus-gaap:FairValueInputsLevel2Memberesgr:ShortTermInvestmentsAndFixedMaturitiesMember2020-06-300001363829us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:MunicipalBondsMemberesgr:ShortTermInvestmentsAndFixedMaturitiesMember2020-06-300001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:MunicipalBondsMemberesgr:ShortTermInvestmentsAndFixedMaturitiesMember2020-06-300001363829us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberesgr:ShortTermInvestmentsAndFixedMaturitiesMemberus-gaap:ResidentialMortgageBackedSecuritiesMember2020-06-300001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberesgr:ShortTermInvestmentsAndFixedMaturitiesMemberus-gaap:ResidentialMortgageBackedSecuritiesMember2020-06-300001363829us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberesgr:ShortTermInvestmentsAndFixedMaturitiesMemberus-gaap:ResidentialMortgageBackedSecuritiesMember2020-06-300001363829us-gaap:FairValueMeasurementsRecurringMemberesgr:ShortTermInvestmentsAndFixedMaturitiesMemberus-gaap:ResidentialMortgageBackedSecuritiesMember2020-06-300001363829us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CommercialMortgageBackedSecuritiesMemberesgr:ShortTermInvestmentsAndFixedMaturitiesMember2020-06-300001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberus-gaap:CommercialMortgageBackedSecuritiesMemberesgr:ShortTermInvestmentsAndFixedMaturitiesMember2020-06-300001363829us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CommercialMortgageBackedSecuritiesMemberesgr:ShortTermInvestmentsAndFixedMaturitiesMember2020-06-300001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:CommercialMortgageBackedSecuritiesMemberesgr:ShortTermInvestmentsAndFixedMaturitiesMember2020-06-300001363829us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberesgr:ShortTermInvestmentsAndFixedMaturitiesMemberus-gaap:AssetBackedSecuritiesMember2020-06-300001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberesgr:ShortTermInvestmentsAndFixedMaturitiesMemberus-gaap:AssetBackedSecuritiesMember2020-06-300001363829us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberesgr:ShortTermInvestmentsAndFixedMaturitiesMemberus-gaap:AssetBackedSecuritiesMember2020-06-300001363829us-gaap:FairValueMeasurementsRecurringMemberesgr:ShortTermInvestmentsAndFixedMaturitiesMemberus-gaap:AssetBackedSecuritiesMember2020-06-300001363829us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberesgr:ShortTermInvestmentsAndFixedMaturitiesMember2020-06-300001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberesgr:ShortTermInvestmentsAndFixedMaturitiesMember2020-06-300001363829us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberesgr:ShortTermInvestmentsAndFixedMaturitiesMember2020-06-300001363829us-gaap:FairValueMeasurementsRecurringMemberesgr:ShortTermInvestmentsAndFixedMaturitiesMember2020-06-300001363829us-gaap:FairValueInputsLevel1Memberesgr:FundsHeldDirectlyManagedMemberus-gaap:FairValueMeasurementsRecurringMemberesgr:ShortTermInvestmentsAndFixedMaturitiesMember2020-06-300001363829esgr:FundsHeldDirectlyManagedMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberesgr:ShortTermInvestmentsAndFixedMaturitiesMember2020-06-300001363829esgr:FundsHeldDirectlyManagedMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberesgr:ShortTermInvestmentsAndFixedMaturitiesMember2020-06-300001363829esgr:FundsHeldDirectlyManagedMemberus-gaap:FairValueMeasurementsRecurringMemberesgr:ShortTermInvestmentsAndFixedMaturitiesMember2020-06-300001363829us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberesgr:PublicEquityFundsMember2020-06-300001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberesgr:PublicEquityFundsMember2020-06-300001363829us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberesgr:PublicEquityFundsMember2020-06-300001363829us-gaap:FairValueMeasurementsRecurringMemberesgr:PublicEquityFundsMember2020-06-300001363829us-gaap:FairValueInputsLevel1Memberus-gaap:ExchangeTradedFundsMemberus-gaap:FairValueMeasurementsRecurringMember2020-06-300001363829us-gaap:ExchangeTradedFundsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2020-06-300001363829us-gaap:ExchangeTradedFundsMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2020-06-300001363829us-gaap:ExchangeTradedFundsMemberus-gaap:FairValueMeasurementsRecurringMember2020-06-300001363829us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:PrivateEquityFundsMember2020-06-300001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberus-gaap:PrivateEquityFundsMember2020-06-300001363829us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:PrivateEquityFundsMember2020-06-300001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:PrivateEquityFundsMember2020-06-300001363829us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMember2020-06-300001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2020-06-300001363829us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2020-06-300001363829us-gaap:FairValueMeasurementsRecurringMember2020-06-300001363829us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberesgr:HedgeFundsFixedIncomeMemberus-gaap:OtherInvestmentsMember2020-06-300001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberesgr:HedgeFundsFixedIncomeMemberus-gaap:OtherInvestmentsMember2020-06-300001363829us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberesgr:HedgeFundsFixedIncomeMemberus-gaap:OtherInvestmentsMember2020-06-300001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberesgr:HedgeFundsFixedIncomeMemberus-gaap:OtherInvestmentsMember2020-06-300001363829us-gaap:FairValueMeasurementsRecurringMemberesgr:HedgeFundsFixedIncomeMemberus-gaap:OtherInvestmentsMember2020-06-300001363829us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FixedIncomeFundsMemberus-gaap:OtherInvestmentsMember2020-06-300001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberus-gaap:FixedIncomeFundsMemberus-gaap:OtherInvestmentsMember2020-06-300001363829us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FixedIncomeFundsMemberus-gaap:OtherInvestmentsMember2020-06-300001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:FixedIncomeFundsMemberus-gaap:OtherInvestmentsMember2020-06-300001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FixedIncomeFundsMemberus-gaap:OtherInvestmentsMember2020-06-300001363829us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquityFundsMemberus-gaap:OtherInvestmentsMember2020-06-300001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberus-gaap:EquityFundsMemberus-gaap:OtherInvestmentsMember2020-06-300001363829us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquityFundsMemberus-gaap:OtherInvestmentsMember2020-06-300001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquityFundsMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:OtherInvestmentsMember2020-06-300001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquityFundsMemberus-gaap:OtherInvestmentsMember2020-06-300001363829us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:PrivateEquityFundsMemberus-gaap:OtherInvestmentsMember2020-06-300001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberus-gaap:PrivateEquityFundsMemberus-gaap:OtherInvestmentsMember2020-06-300001363829us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:PrivateEquityFundsMemberus-gaap:OtherInvestmentsMember2020-06-300001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:PrivateEquityFundsMemberus-gaap:OtherInvestmentsMember2020-06-300001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:PrivateEquityFundsMemberus-gaap:OtherInvestmentsMember2020-06-300001363829us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberesgr:CLOEquityMemberus-gaap:OtherInvestmentsMember2020-06-300001363829us-gaap:FairValueMeasurementsRecurringMemberesgr:CLOEquityMemberus-gaap:FairValueInputsLevel2Memberus-gaap:OtherInvestmentsMember2020-06-300001363829us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberesgr:CLOEquityMemberus-gaap:OtherInvestmentsMember2020-06-300001363829us-gaap:FairValueMeasurementsRecurringMemberesgr:CLOEquityMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:OtherInvestmentsMember2020-06-300001363829us-gaap:FairValueMeasurementsRecurringMemberesgr:CLOEquityMemberus-gaap:OtherInvestmentsMember2020-06-300001363829us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherInvestmentsMemberesgr:CLOEquityFundsMember2020-06-300001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberus-gaap:OtherInvestmentsMemberesgr:CLOEquityFundsMember2020-06-300001363829us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherInvestmentsMemberesgr:CLOEquityFundsMember2020-06-300001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:OtherInvestmentsMemberesgr:CLOEquityFundsMember2020-06-300001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherInvestmentsMemberesgr:CLOEquityFundsMember2020-06-300001363829us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberesgr:PrivateCreditFundsMemberus-gaap:OtherInvestmentsMember2020-06-300001363829us-gaap:FairValueMeasurementsRecurringMemberesgr:PrivateCreditFundsMemberus-gaap:FairValueInputsLevel2Memberus-gaap:OtherInvestmentsMember2020-06-300001363829us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberesgr:PrivateCreditFundsMemberus-gaap:OtherInvestmentsMember2020-06-300001363829us-gaap:FairValueMeasurementsRecurringMemberesgr:PrivateCreditFundsMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:OtherInvestmentsMember2020-06-300001363829us-gaap:FairValueMeasurementsRecurringMemberesgr:PrivateCreditFundsMemberus-gaap:OtherInvestmentsMember2020-06-300001363829us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberesgr:OtherInvestmentsatFairValueMemberus-gaap:OtherInvestmentsMember2020-06-300001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberesgr:OtherInvestmentsatFairValueMemberus-gaap:OtherInvestmentsMember2020-06-300001363829us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberesgr:OtherInvestmentsatFairValueMemberus-gaap:OtherInvestmentsMember2020-06-300001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberesgr:OtherInvestmentsatFairValueMemberus-gaap:OtherInvestmentsMember2020-06-300001363829us-gaap:FairValueMeasurementsRecurringMemberesgr:OtherInvestmentsatFairValueMemberus-gaap:OtherInvestmentsMember2020-06-300001363829us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherInvestmentsMember2020-06-300001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberus-gaap:OtherInvestmentsMember2020-06-300001363829us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherInvestmentsMember2020-06-300001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:OtherInvestmentsMember2020-06-300001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherInvestmentsMember2020-06-300001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMember2020-06-300001363829us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ReinsuranceRecoverableForPaidAndUnpaidClaimsAndClaimsAdjustmentsMember2020-06-300001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberus-gaap:ReinsuranceRecoverableForPaidAndUnpaidClaimsAndClaimsAdjustmentsMember2020-06-300001363829us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ReinsuranceRecoverableForPaidAndUnpaidClaimsAndClaimsAdjustmentsMember2020-06-300001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:ReinsuranceRecoverableForPaidAndUnpaidClaimsAndClaimsAdjustmentsMember2020-06-300001363829us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsAssetsMemberus-gaap:DesignatedAsHedgingInstrumentMember2020-06-300001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsAssetsMemberus-gaap:FairValueInputsLevel2Memberus-gaap:DesignatedAsHedgingInstrumentMember2020-06-300001363829us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsAssetsMemberus-gaap:DesignatedAsHedgingInstrumentMember2020-06-300001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsAssetsMemberus-gaap:DesignatedAsHedgingInstrumentMember2020-06-300001363829us-gaap:FairValueInputsLevel1Memberus-gaap:NondesignatedMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2020-06-300001363829us-gaap:NondesignatedMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsAssetsMemberus-gaap:FairValueInputsLevel2Member2020-06-300001363829us-gaap:NondesignatedMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2020-06-300001363829us-gaap:NondesignatedMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2020-06-300001363829us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2020-06-300001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsAssetsMemberus-gaap:FairValueInputsLevel2Member2020-06-300001363829us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2020-06-300001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2020-06-300001363829us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMemberus-gaap:DesignatedAsHedgingInstrumentMember2020-06-300001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMemberus-gaap:FairValueInputsLevel2Memberus-gaap:DesignatedAsHedgingInstrumentMember2020-06-300001363829us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMemberus-gaap:DesignatedAsHedgingInstrumentMember2020-06-300001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMemberus-gaap:DesignatedAsHedgingInstrumentMember2020-06-300001363829us-gaap:FairValueInputsLevel1Memberus-gaap:NondesignatedMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMember2020-06-300001363829us-gaap:NondesignatedMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMemberus-gaap:FairValueInputsLevel2Member2020-06-300001363829us-gaap:NondesignatedMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMember2020-06-300001363829us-gaap:NondesignatedMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMember2020-06-300001363829us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMember2020-06-300001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMemberus-gaap:FairValueInputsLevel2Member2020-06-300001363829us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMember2020-06-300001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMember2020-06-300001363829us-gaap:FairValueInputsLevel1Memberus-gaap:USGovernmentAgenciesDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberesgr:ShortTermInvestmentsAndFixedMaturitiesMember2019-12-310001363829us-gaap:USGovernmentAgenciesDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberesgr:ShortTermInvestmentsAndFixedMaturitiesMember2019-12-310001363829us-gaap:USGovernmentAgenciesDebtSecuritiesMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberesgr:ShortTermInvestmentsAndFixedMaturitiesMember2019-12-310001363829us-gaap:USGovernmentAgenciesDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberesgr:ShortTermInvestmentsAndFixedMaturitiesMember2019-12-310001363829us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberesgr:ShortTermInvestmentsAndFixedMaturitiesMemberesgr:UnitedKingdomGovernmentAgenciesDebtSecuritiesMember2019-12-310001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberesgr:ShortTermInvestmentsAndFixedMaturitiesMemberesgr:UnitedKingdomGovernmentAgenciesDebtSecuritiesMember2019-12-310001363829us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberesgr:ShortTermInvestmentsAndFixedMaturitiesMemberesgr:UnitedKingdomGovernmentAgenciesDebtSecuritiesMember2019-12-310001363829us-gaap:FairValueMeasurementsRecurringMemberesgr:ShortTermInvestmentsAndFixedMaturitiesMemberesgr:UnitedKingdomGovernmentAgenciesDebtSecuritiesMember2019-12-310001363829us-gaap:FairValueInputsLevel1Memberesgr:DebtSecurityGovernmentOtherMemberus-gaap:FairValueMeasurementsRecurringMemberesgr:ShortTermInvestmentsAndFixedMaturitiesMember2019-12-310001363829esgr:DebtSecurityGovernmentOtherMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberesgr:ShortTermInvestmentsAndFixedMaturitiesMember2019-12-310001363829esgr:DebtSecurityGovernmentOtherMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberesgr:ShortTermInvestmentsAndFixedMaturitiesMember2019-12-310001363829esgr:DebtSecurityGovernmentOtherMemberus-gaap:FairValueMeasurementsRecurringMemberesgr:ShortTermInvestmentsAndFixedMaturitiesMember2019-12-310001363829us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMemberesgr:ShortTermInvestmentsAndFixedMaturitiesMember2019-12-310001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberus-gaap:CorporateDebtSecuritiesMemberesgr:ShortTermInvestmentsAndFixedMaturitiesMember2019-12-310001363829us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMemberesgr:ShortTermInvestmentsAndFixedMaturitiesMember2019-12-310001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMemberesgr:ShortTermInvestmentsAndFixedMaturitiesMember2019-12-310001363829us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:MunicipalBondsMemberesgr:ShortTermInvestmentsAndFixedMaturitiesMember2019-12-310001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:MunicipalBondsMemberus-gaap:FairValueInputsLevel2Memberesgr:ShortTermInvestmentsAndFixedMaturitiesMember2019-12-310001363829us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:MunicipalBondsMemberesgr:ShortTermInvestmentsAndFixedMaturitiesMember2019-12-310001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:MunicipalBondsMemberesgr:ShortTermInvestmentsAndFixedMaturitiesMember2019-12-310001363829us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberesgr:ShortTermInvestmentsAndFixedMaturitiesMemberus-gaap:ResidentialMortgageBackedSecuritiesMember2019-12-310001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberesgr:ShortTermInvestmentsAndFixedMaturitiesMemberus-gaap:ResidentialMortgageBackedSecuritiesMember2019-12-310001363829us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberesgr:ShortTermInvestmentsAndFixedMaturitiesMemberus-gaap:ResidentialMortgageBackedSecuritiesMember2019-12-310001363829us-gaap:FairValueMeasurementsRecurringMemberesgr:ShortTermInvestmentsAndFixedMaturitiesMemberus-gaap:ResidentialMortgageBackedSecuritiesMember2019-12-310001363829us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CommercialMortgageBackedSecuritiesMemberesgr:ShortTermInvestmentsAndFixedMaturitiesMember2019-12-310001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberus-gaap:CommercialMortgageBackedSecuritiesMemberesgr:ShortTermInvestmentsAndFixedMaturitiesMember2019-12-310001363829us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CommercialMortgageBackedSecuritiesMemberesgr:ShortTermInvestmentsAndFixedMaturitiesMember2019-12-310001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:CommercialMortgageBackedSecuritiesMemberesgr:ShortTermInvestmentsAndFixedMaturitiesMember2019-12-310001363829us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberesgr:ShortTermInvestmentsAndFixedMaturitiesMemberus-gaap:AssetBackedSecuritiesMember2019-12-310001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberesgr:ShortTermInvestmentsAndFixedMaturitiesMemberus-gaap:AssetBackedSecuritiesMember2019-12-310001363829us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberesgr:ShortTermInvestmentsAndFixedMaturitiesMemberus-gaap:AssetBackedSecuritiesMember2019-12-310001363829us-gaap:FairValueMeasurementsRecurringMemberesgr:ShortTermInvestmentsAndFixedMaturitiesMemberus-gaap:AssetBackedSecuritiesMember2019-12-310001363829us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberesgr:ShortTermInvestmentsAndFixedMaturitiesMember2019-12-310001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberesgr:ShortTermInvestmentsAndFixedMaturitiesMember2019-12-310001363829us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberesgr:ShortTermInvestmentsAndFixedMaturitiesMember2019-12-310001363829us-gaap:FairValueMeasurementsRecurringMemberesgr:ShortTermInvestmentsAndFixedMaturitiesMember2019-12-310001363829us-gaap:FairValueInputsLevel1Memberesgr:FundsHeldDirectlyManagedMemberus-gaap:FairValueMeasurementsRecurringMemberesgr:ShortTermInvestmentsAndFixedMaturitiesMember2019-12-310001363829esgr:FundsHeldDirectlyManagedMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberesgr:ShortTermInvestmentsAndFixedMaturitiesMember2019-12-310001363829esgr:FundsHeldDirectlyManagedMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberesgr:ShortTermInvestmentsAndFixedMaturitiesMember2019-12-310001363829esgr:FundsHeldDirectlyManagedMemberus-gaap:FairValueMeasurementsRecurringMemberesgr:ShortTermInvestmentsAndFixedMaturitiesMember2019-12-310001363829us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberesgr:PublicEquityFundsMember2019-12-310001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberesgr:PublicEquityFundsMember2019-12-310001363829us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberesgr:PublicEquityFundsMember2019-12-310001363829us-gaap:FairValueMeasurementsRecurringMemberesgr:PublicEquityFundsMember2019-12-310001363829us-gaap:FairValueInputsLevel1Memberus-gaap:ExchangeTradedFundsMemberus-gaap:FairValueMeasurementsRecurringMember2019-12-310001363829us-gaap:ExchangeTradedFundsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2019-12-310001363829us-gaap:ExchangeTradedFundsMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2019-12-310001363829us-gaap:ExchangeTradedFundsMemberus-gaap:FairValueMeasurementsRecurringMember2019-12-310001363829us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:PrivateEquityFundsMember2019-12-310001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberus-gaap:PrivateEquityFundsMember2019-12-310001363829us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:PrivateEquityFundsMember2019-12-310001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:PrivateEquityFundsMember2019-12-310001363829us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMember2019-12-310001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2019-12-310001363829us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2019-12-310001363829us-gaap:FairValueMeasurementsRecurringMember2019-12-310001363829us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberesgr:HedgeFundsFixedIncomeMemberus-gaap:OtherInvestmentsMember2019-12-310001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberesgr:HedgeFundsFixedIncomeMemberus-gaap:OtherInvestmentsMember2019-12-310001363829us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberesgr:HedgeFundsFixedIncomeMemberus-gaap:OtherInvestmentsMember2019-12-310001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberesgr:HedgeFundsFixedIncomeMemberus-gaap:OtherInvestmentsMember2019-12-310001363829us-gaap:FairValueMeasurementsRecurringMemberesgr:HedgeFundsFixedIncomeMemberus-gaap:OtherInvestmentsMember2019-12-310001363829us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FixedIncomeFundsMemberus-gaap:OtherInvestmentsMember2019-12-310001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberus-gaap:FixedIncomeFundsMemberus-gaap:OtherInvestmentsMember2019-12-310001363829us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FixedIncomeFundsMemberus-gaap:OtherInvestmentsMember2019-12-310001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:FixedIncomeFundsMemberus-gaap:OtherInvestmentsMember2019-12-310001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FixedIncomeFundsMemberus-gaap:OtherInvestmentsMember2019-12-310001363829us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquityFundsMemberus-gaap:OtherInvestmentsMember2019-12-310001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberus-gaap:EquityFundsMemberus-gaap:OtherInvestmentsMember2019-12-310001363829us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquityFundsMemberus-gaap:OtherInvestmentsMember2019-12-310001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquityFundsMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:OtherInvestmentsMember2019-12-310001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquityFundsMemberus-gaap:OtherInvestmentsMember2019-12-310001363829us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:PrivateEquityFundsMemberus-gaap:OtherInvestmentsMember2019-12-310001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberus-gaap:PrivateEquityFundsMemberus-gaap:OtherInvestmentsMember2019-12-310001363829us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:PrivateEquityFundsMemberus-gaap:OtherInvestmentsMember2019-12-310001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:PrivateEquityFundsMemberus-gaap:OtherInvestmentsMember2019-12-310001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:PrivateEquityFundsMemberus-gaap:OtherInvestmentsMember2019-12-310001363829us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberesgr:CLOEquityMemberus-gaap:OtherInvestmentsMember2019-12-310001363829us-gaap:FairValueMeasurementsRecurringMemberesgr:CLOEquityMemberus-gaap:FairValueInputsLevel2Memberus-gaap:OtherInvestmentsMember2019-12-310001363829us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberesgr:CLOEquityMemberus-gaap:OtherInvestmentsMember2019-12-310001363829us-gaap:FairValueMeasurementsRecurringMemberesgr:CLOEquityMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:OtherInvestmentsMember2019-12-310001363829us-gaap:FairValueMeasurementsRecurringMemberesgr:CLOEquityMemberus-gaap:OtherInvestmentsMember2019-12-310001363829us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherInvestmentsMemberesgr:CLOEquityFundsMember2019-12-310001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberus-gaap:OtherInvestmentsMemberesgr:CLOEquityFundsMember2019-12-310001363829us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherInvestmentsMemberesgr:CLOEquityFundsMember2019-12-310001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:OtherInvestmentsMemberesgr:CLOEquityFundsMember2019-12-310001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherInvestmentsMemberesgr:CLOEquityFundsMember2019-12-310001363829us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberesgr:OtherInvestmentsatFairValueMemberus-gaap:OtherInvestmentsMember2019-12-310001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberesgr:OtherInvestmentsatFairValueMemberus-gaap:OtherInvestmentsMember2019-12-310001363829us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberesgr:OtherInvestmentsatFairValueMemberus-gaap:OtherInvestmentsMember2019-12-310001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberesgr:OtherInvestmentsatFairValueMemberus-gaap:OtherInvestmentsMember2019-12-310001363829us-gaap:FairValueMeasurementsRecurringMemberesgr:OtherInvestmentsatFairValueMemberus-gaap:OtherInvestmentsMember2019-12-310001363829us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherInvestmentsMember2019-12-310001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberus-gaap:OtherInvestmentsMember2019-12-310001363829us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherInvestmentsMember2019-12-310001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMemberus-gaap:OtherInvestmentsMember2019-12-310001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:OtherInvestmentsMember2019-12-310001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueMeasuredAtNetAssetValuePerShareMember2019-12-310001363829us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ReinsuranceRecoverableForPaidAndUnpaidClaimsAndClaimsAdjustmentsMember2019-12-310001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Memberus-gaap:ReinsuranceRecoverableForPaidAndUnpaidClaimsAndClaimsAdjustmentsMember2019-12-310001363829us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:ReinsuranceRecoverableForPaidAndUnpaidClaimsAndClaimsAdjustmentsMember2019-12-310001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:ReinsuranceRecoverableForPaidAndUnpaidClaimsAndClaimsAdjustmentsMember2019-12-310001363829us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsAssetsMemberus-gaap:DesignatedAsHedgingInstrumentMember2019-12-310001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsAssetsMemberus-gaap:FairValueInputsLevel2Memberus-gaap:DesignatedAsHedgingInstrumentMember2019-12-310001363829us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsAssetsMemberus-gaap:DesignatedAsHedgingInstrumentMember2019-12-310001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsAssetsMemberus-gaap:DesignatedAsHedgingInstrumentMember2019-12-310001363829us-gaap:FairValueInputsLevel1Memberus-gaap:NondesignatedMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2019-12-310001363829us-gaap:NondesignatedMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsAssetsMemberus-gaap:FairValueInputsLevel2Member2019-12-310001363829us-gaap:NondesignatedMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2019-12-310001363829us-gaap:NondesignatedMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2019-12-310001363829us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2019-12-310001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsAssetsMemberus-gaap:FairValueInputsLevel2Member2019-12-310001363829us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2019-12-310001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsAssetsMember2019-12-310001363829us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMemberus-gaap:DesignatedAsHedgingInstrumentMember2019-12-310001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMemberus-gaap:FairValueInputsLevel2Memberus-gaap:DesignatedAsHedgingInstrumentMember2019-12-310001363829us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMemberus-gaap:DesignatedAsHedgingInstrumentMember2019-12-310001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMemberus-gaap:DesignatedAsHedgingInstrumentMember2019-12-310001363829us-gaap:FairValueInputsLevel1Memberus-gaap:NondesignatedMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMember2019-12-310001363829us-gaap:NondesignatedMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMemberus-gaap:FairValueInputsLevel2Member2019-12-310001363829us-gaap:NondesignatedMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMember2019-12-310001363829us-gaap:NondesignatedMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMember2019-12-310001363829us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMember2019-12-310001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMemberus-gaap:FairValueInputsLevel2Member2019-12-310001363829us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMember2019-12-310001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:DerivativeFinancialInstrumentsLiabilitiesMember2019-12-310001363829us-gaap:EquitySecuritiesMember2020-03-310001363829us-gaap:OtherInvestmentsMember2020-03-310001363829us-gaap:EquitySecuritiesMember2020-06-300001363829us-gaap:OtherInvestmentsMember2020-06-300001363829us-gaap:CorporateDebtSecuritiesMember2019-03-310001363829us-gaap:ResidentialMortgageBackedSecuritiesMember2019-03-310001363829us-gaap:CommercialMortgageBackedSecuritiesMember2019-03-310001363829us-gaap:AssetBackedSecuritiesMember2019-03-310001363829us-gaap:EquitySecuritiesMember2019-03-310001363829us-gaap:OtherInvestmentsMember2019-03-310001363829us-gaap:CorporateDebtSecuritiesMember2019-04-012019-06-300001363829us-gaap:ResidentialMortgageBackedSecuritiesMember2019-04-012019-06-300001363829us-gaap:CommercialMortgageBackedSecuritiesMember2019-04-012019-06-300001363829us-gaap:AssetBackedSecuritiesMember2019-04-012019-06-300001363829us-gaap:CorporateDebtSecuritiesMember2019-06-300001363829us-gaap:ResidentialMortgageBackedSecuritiesMember2019-06-300001363829us-gaap:CommercialMortgageBackedSecuritiesMember2019-06-300001363829us-gaap:AssetBackedSecuritiesMember2019-06-300001363829us-gaap:EquitySecuritiesMember2019-06-300001363829us-gaap:OtherInvestmentsMember2019-06-300001363829us-gaap:EquitySecuritiesMember2019-12-310001363829us-gaap:OtherInvestmentsMember2019-12-310001363829us-gaap:CorporateDebtSecuritiesMember2018-12-310001363829us-gaap:ResidentialMortgageBackedSecuritiesMember2018-12-310001363829us-gaap:CommercialMortgageBackedSecuritiesMember2018-12-310001363829us-gaap:AssetBackedSecuritiesMember2018-12-310001363829us-gaap:EquitySecuritiesMember2018-12-310001363829us-gaap:OtherInvestmentsMember2018-12-310001363829us-gaap:CorporateDebtSecuritiesMember2019-01-012019-06-300001363829us-gaap:ResidentialMortgageBackedSecuritiesMember2019-01-012019-06-300001363829us-gaap:CommercialMortgageBackedSecuritiesMember2019-01-012019-06-300001363829us-gaap:AssetBackedSecuritiesMember2019-01-012019-06-300001363829us-gaap:FairValueInputsLevel3Memberus-gaap:PrivateEquityFundsMemberesgr:ValuationTechniqueTransactionalValueMember2020-06-300001363829us-gaap:FairValueInputsLevel3Membersrt:MinimumMemberus-gaap:MeasurementInputQuotedPriceMemberus-gaap:PrivateEquityFundsMemberesgr:ValuationTechniqueTransactionalValueMember2020-06-300001363829srt:MaximumMemberus-gaap:FairValueInputsLevel3Memberus-gaap:MeasurementInputQuotedPriceMemberus-gaap:PrivateEquityFundsMemberesgr:ValuationTechniqueTransactionalValueMember2020-06-300001363829us-gaap:FairValueInputsLevel3Memberus-gaap:PrivateEquityFundsMemberus-gaap:CostApproachValuationTechniqueMember2020-06-300001363829us-gaap:FairValueInputsLevel3Memberus-gaap:PrivateEquityFundsMember2020-06-300001363829esgr:LossesAndLossAdjustmentExpenseLiabilitiesMember2020-03-310001363829us-gaap:ReinsuranceRecoverableMember2020-03-310001363829esgr:LossesAndLossAdjustmentExpenseLiabilitiesMember2019-03-310001363829us-gaap:ReinsuranceRecoverableMember2019-03-310001363829esgr:LossesAndLossAdjustmentExpenseLiabilitiesMember2020-04-012020-06-300001363829us-gaap:ReinsuranceRecoverableMember2020-04-012020-06-300001363829esgr:LossesAndLossAdjustmentExpenseLiabilitiesMember2019-04-012019-06-300001363829us-gaap:ReinsuranceRecoverableMember2019-04-012019-06-300001363829esgr:LossesAndLossAdjustmentExpenseLiabilitiesMember2020-06-300001363829us-gaap:ReinsuranceRecoverableMember2020-06-300001363829esgr:LossesAndLossAdjustmentExpenseLiabilitiesMember2019-06-300001363829us-gaap:ReinsuranceRecoverableMember2019-06-300001363829esgr:MeasurementInputDurationMember2020-04-012020-06-300001363829esgr:MeasurementInputDurationMember2019-04-012019-06-300001363829esgr:MeasurementInputCorporateBondYieldMember2020-04-012020-06-300001363829esgr:MeasurementInputCorporateBondYieldMember2019-04-012019-06-300001363829esgr:LossesAndLossAdjustmentExpenseLiabilitiesMember2019-12-310001363829us-gaap:ReinsuranceRecoverableMember2019-12-310001363829esgr:LossesAndLossAdjustmentExpenseLiabilitiesMember2018-12-310001363829us-gaap:ReinsuranceRecoverableMember2018-12-310001363829esgr:LossesAndLossAdjustmentExpenseLiabilitiesMember2020-01-012020-06-300001363829us-gaap:ReinsuranceRecoverableMember2020-01-012020-06-300001363829esgr:LossesAndLossAdjustmentExpenseLiabilitiesMember2019-01-012019-06-300001363829us-gaap:ReinsuranceRecoverableMember2019-01-012019-06-300001363829esgr:MeasurementInputDurationMember2020-01-012020-06-300001363829esgr:MeasurementInputDurationMember2019-01-012019-06-300001363829esgr:MeasurementInputCorporateBondYieldMember2020-01-012020-06-300001363829esgr:MeasurementInputCorporateBondYieldMember2019-01-012019-06-300001363829esgr:MeasurementInputWeightedAverageCostOfCapitalMember2020-01-012020-06-300001363829esgr:MeasurementInputWeightedAverageCostOfCapitalMember2019-01-012019-06-300001363829esgr:MeasurementInputRiskCostOfCapitalMember2020-01-012020-06-300001363829esgr:MeasurementInputRiskCostOfCapitalMember2019-01-012019-06-300001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:MeasurementInputEntityCreditRiskMemberesgr:InternalModelMemberesgr:LossesAndLossAdjustmentExpenseLiabilitiesMember2020-01-012020-06-300001363829us-gaap:FairValueMeasurementsRecurringMemberus-gaap:MeasurementInputEntityCreditRiskMemberesgr:InternalModelMemberesgr:LossesAndLossAdjustmentExpenseLiabilitiesMember2019-01-012019-12-310001363829us-gaap:ReinsuranceRecoverableMemberus-gaap:FairValueMeasurementsRecurringMemberesgr:InternalModelMember2020-01-012020-06-300001363829us-gaap:ReinsuranceRecoverableMemberus-gaap:FairValueMeasurementsRecurringMemberesgr:InternalModelMember2019-01-012019-12-310001363829us-gaap:FairValueMeasurementsRecurringMemberesgr:InternalModelMemberesgr:LossesAndLossAdjustmentExpenseLiabilitiesMember2020-01-012020-06-300001363829us-gaap:FairValueMeasurementsRecurringMemberesgr:InternalModelMemberesgr:LossesAndLossAdjustmentExpenseLiabilitiesMember2019-01-012019-12-310001363829us-gaap:SeniorNotesMemberesgr:SeniorNotesDue2022Member2020-06-300001363829us-gaap:SeniorNotesMemberesgr:SeniorNotesDue2029Member2020-06-300001363829us-gaap:OperatingSegmentsMemberesgr:NonlifeRunoffSegmentMember2020-04-012020-06-300001363829us-gaap:OperatingSegmentsMemberesgr:NonlifeRunoffSegmentMember2019-04-012019-06-300001363829us-gaap:OperatingSegmentsMemberesgr:NonlifeRunoffSegmentMember2020-01-012020-06-300001363829us-gaap:OperatingSegmentsMemberesgr:NonlifeRunoffSegmentMember2019-01-012019-06-300001363829us-gaap:OperatingSegmentsMemberesgr:AtriumSegmentMember2020-04-012020-06-300001363829us-gaap:OperatingSegmentsMemberesgr:AtriumSegmentMember2019-04-012019-06-300001363829us-gaap:OperatingSegmentsMemberesgr:AtriumSegmentMember2020-01-012020-06-300001363829us-gaap:OperatingSegmentsMemberesgr:AtriumSegmentMember2019-01-012019-06-300001363829us-gaap:OperatingSegmentsMemberesgr:StarStoneSegmentMember2020-04-012020-06-300001363829us-gaap:OperatingSegmentsMemberesgr:StarStoneSegmentMember2019-04-012019-06-300001363829us-gaap:OperatingSegmentsMemberesgr:StarStoneSegmentMember2020-01-012020-06-300001363829us-gaap:OperatingSegmentsMemberesgr:StarStoneSegmentMember2019-01-012019-06-300001363829esgr:StarstoneMember2020-04-012020-06-300001363829esgr:StarstoneMember2020-01-012020-06-300001363829esgr:AtriumSegmentMemberus-gaap:DistributionRightsMember2020-06-300001363829esgr:AtriumSegmentMemberus-gaap:DistributionRightsMember2019-12-310001363829esgr:AtriumSegmentMemberus-gaap:TradeDressMember2020-06-300001363829esgr:AtriumSegmentMemberus-gaap:TradeDressMember2019-12-310001363829esgr:AtriumSegmentMemberesgr:LloydsSyndicateCapacityMember2020-06-300001363829esgr:AtriumSegmentMemberesgr:LloydsSyndicateCapacityMember2019-12-310001363829esgr:AtriumSegmentMemberus-gaap:ContractBasedIntangibleAssetsMember2020-06-300001363829esgr:AtriumSegmentMemberus-gaap:ContractBasedIntangibleAssetsMember2019-12-310001363829esgr:LloydsSyndicateCapacityMemberesgr:StarStoneSegmentMember2020-06-300001363829esgr:LloydsSyndicateCapacityMemberesgr:StarStoneSegmentMember2019-12-310001363829srt:MinimumMember2020-01-012020-06-300001363829srt:MaximumMember2020-01-012020-06-300001363829esgr:LloydsSyndicateCapacityMemberesgr:StarStoneSegmentMember2020-01-012020-06-300001363829esgr:LloydsSyndicateCapacityMemberesgr:StarStoneSegmentMember2020-04-012020-06-300001363829us-gaap:SeniorNotesMemberesgr:SeniorNotesDue2022Member2020-01-012020-06-300001363829us-gaap:SeniorNotesMemberesgr:SeniorNotesDue2022Member2019-12-310001363829us-gaap:SeniorNotesMemberesgr:SeniorNotesDue2029Member2020-01-012020-06-300001363829us-gaap:SeniorNotesMemberesgr:SeniorNotesDue2029Member2019-12-310001363829us-gaap:SeniorNotesMember2020-06-300001363829us-gaap:SeniorNotesMember2019-12-310001363829us-gaap:LineOfCreditMemberesgr:A2018EGLRevolvingCreditFacilityMember2020-01-012020-06-300001363829us-gaap:LineOfCreditMemberesgr:A2018EGLRevolvingCreditFacilityMember2020-06-300001363829us-gaap:LineOfCreditMemberesgr:A2018EGLRevolvingCreditFacilityMember2019-12-310001363829us-gaap:LineOfCreditMemberesgr:A2018EGLTermLoanFacilityMember2020-01-012020-06-300001363829us-gaap:LineOfCreditMemberesgr:A2018EGLTermLoanFacilityMember2020-06-300001363829us-gaap:LineOfCreditMemberesgr:A2018EGLTermLoanFacilityMember2019-12-310001363829us-gaap:LineOfCreditMember2020-01-012020-06-300001363829us-gaap:SeniorNotesMemberesgr:SeniorNotesDue2022Member2017-03-100001363829us-gaap:SeniorNotesMemberesgr:SeniorNotesDue2022Member2017-03-102017-03-100001363829us-gaap:SeniorNotesMemberesgr:SeniorNotesDue2029Member2019-05-280001363829us-gaap:SeniorNotesMemberesgr:SeniorNotesDue2029Member2019-05-282019-05-280001363829us-gaap:LineOfCreditMemberesgr:A2018EGLRevolvingCreditFacilityMember2018-08-162018-08-160001363829us-gaap:LineOfCreditMemberesgr:A2018EGLRevolvingCreditFacilityMember2018-08-160001363829us-gaap:SubsequentEventMemberus-gaap:LineOfCreditMemberesgr:A2018EGLRevolvingCreditFacilityMember2020-08-070001363829us-gaap:LineOfCreditMemberesgr:A2018EGLTermLoanFacilityMember2018-12-272018-12-270001363829us-gaap:LineOfCreditMemberesgr:A2018EGLTermLoanFacilityMember2018-12-270001363829us-gaap:LineOfCreditMemberesgr:A2018EGLTermLoanFacilityMember2019-01-012019-12-310001363829us-gaap:LineOfCreditMemberus-gaap:LetterOfCreditMemberesgr:FALFacilityMember2019-02-120001363829us-gaap:LineOfCreditMemberesgr:FALFacilityMember2019-02-120001363829us-gaap:LineOfCreditMemberus-gaap:LetterOfCreditMemberesgr:FALFacilityMember2019-11-062019-11-060001363829us-gaap:LineOfCreditMemberus-gaap:LetterOfCreditMemberesgr:FALFacilityMember2019-12-310001363829us-gaap:LineOfCreditMemberus-gaap:LetterOfCreditMemberesgr:FALFacilityMember2020-06-300001363829esgr:A2018FacilityAgreementMemberus-gaap:LineOfCreditMemberus-gaap:LetterOfCreditMember2019-12-060001363829esgr:A2018FacilityAgreementMemberus-gaap:LineOfCreditMemberus-gaap:LetterOfCreditMember2019-12-050001363829esgr:A2018FacilityAgreementMemberus-gaap:LineOfCreditMemberus-gaap:LetterOfCreditMember2019-12-310001363829esgr:A2018FacilityAgreementMemberus-gaap:LineOfCreditMemberus-gaap:LetterOfCreditMember2020-06-300001363829us-gaap:SubsequentEventMemberus-gaap:LineOfCreditMemberus-gaap:LetterOfCreditMemberesgr:MaidenFacilityAgreementMember2020-08-040001363829us-gaap:LineOfCreditMemberus-gaap:LetterOfCreditMemberesgr:MaidenFacilityAgreementMember2019-12-310001363829esgr:MaidenFacilityAgreementMember2019-01-012019-12-310001363829us-gaap:LineOfCreditMemberus-gaap:LetterOfCreditMemberesgr:MaidenFacilityAgreementMember2020-06-300001363829us-gaap:SubsequentEventMemberus-gaap:LineOfCreditMemberus-gaap:LetterOfCreditMemberesgr:A2020LetterOfCreditFacilityMember2020-08-040001363829esgr:A2018FacilityAgreementMemberus-gaap:SubsequentEventMemberus-gaap:LineOfCreditMemberus-gaap:LetterOfCreditMember2020-08-040001363829esgr:TridentMembersrt:SubsidiariesMember2019-12-310001363829esgr:TridentMembersrt:SubsidiariesMember2020-06-300001363829esgr:DowlingMembersrt:SubsidiariesMember2020-06-300001363829esgr:DowlingMembersrt:SubsidiariesMember2019-12-310001363829us-gaap:SeriesDPreferredStockMember2020-02-042020-02-040001363829us-gaap:SeriesEPreferredStockMember2020-02-042020-02-040001363829us-gaap:SeriesDPreferredStockMember2020-05-052020-05-050001363829us-gaap:SeriesEPreferredStockMember2020-05-052020-05-050001363829us-gaap:SubsequentEventMemberus-gaap:SeriesDPreferredStockMember2020-08-052020-08-050001363829us-gaap:SubsequentEventMemberus-gaap:SeriesEPreferredStockMember2020-08-052020-08-0500013638292020-03-0900013638292020-03-092020-03-230001363829srt:ChiefExecutiveOfficerMemberesgr:JointShareOwnershipPlanMember2020-01-212020-01-210001363829esgr:JointShareOwnershipPlanMember2020-01-212020-01-210001363829esgr:RestrictedStockandRestrictedStockUnitsMember2020-04-012020-06-300001363829esgr:RestrictedStockandRestrictedStockUnitsMember2019-04-012019-06-300001363829esgr:RestrictedStockandRestrictedStockUnitsMember2020-01-012020-06-300001363829esgr:RestrictedStockandRestrictedStockUnitsMember2019-01-012019-06-300001363829us-gaap:PerformanceSharesMember2020-04-012020-06-300001363829us-gaap:PerformanceSharesMember2019-04-012019-06-300001363829us-gaap:PerformanceSharesMember2020-01-012020-06-300001363829us-gaap:PerformanceSharesMember2019-01-012019-06-300001363829us-gaap:StockAppreciationRightsSARSMember2020-04-012020-06-300001363829us-gaap:StockAppreciationRightsSARSMember2019-04-012019-06-300001363829us-gaap:StockAppreciationRightsSARSMember2020-01-012020-06-300001363829us-gaap:StockAppreciationRightsSARSMember2019-01-012019-06-300001363829us-gaap:EmployeeStockMemberesgr:EmployeeStockPurchasePlanMember2020-04-012020-06-300001363829us-gaap:EmployeeStockMemberesgr:EmployeeStockPurchasePlanMember2019-04-012019-06-300001363829us-gaap:EmployeeStockMemberesgr:EmployeeStockPurchasePlanMember2020-01-012020-06-300001363829us-gaap:EmployeeStockMemberesgr:EmployeeStockPurchasePlanMember2019-01-012019-06-300001363829esgr:LongTermIncentivePlansMemberesgr:TimeBasedRestrictedStockMember2020-04-012020-06-300001363829esgr:LongTermIncentivePlansMemberesgr:TimeBasedRestrictedStockMember2019-04-012019-06-300001363829esgr:LongTermIncentivePlansMemberesgr:TimeBasedRestrictedStockMember2020-01-012020-06-300001363829esgr:LongTermIncentivePlansMemberesgr:TimeBasedRestrictedStockMember2019-01-012019-06-300001363829esgr:StarStoneLongTermIncentivePlanMemberesgr:TimeBasedRestrictedStockMember2020-04-012020-06-300001363829esgr:StarStoneLongTermIncentivePlanMemberesgr:TimeBasedRestrictedStockMember2019-04-012019-06-300001363829esgr:StarStoneLongTermIncentivePlanMemberesgr:TimeBasedRestrictedStockMember2020-01-012020-06-300001363829esgr:StarStoneLongTermIncentivePlanMemberesgr:TimeBasedRestrictedStockMember2019-01-012019-06-300001363829esgr:DeferredCompensationPlanMember2020-04-012020-06-300001363829esgr:DeferredCompensationPlanMember2019-04-012019-06-300001363829esgr:DeferredCompensationPlanMember2020-01-012020-06-300001363829esgr:DeferredCompensationPlanMember2019-01-012019-06-300001363829us-gaap:EmployeeStockMember2020-04-012020-06-300001363829us-gaap:EmployeeStockMember2019-04-012019-06-300001363829us-gaap:EmployeeStockMember2020-01-012020-06-300001363829us-gaap:EmployeeStockMember2019-01-012019-06-300001363829srt:AffiliatedEntityMemberesgr:TridentMember2012-05-012012-07-310001363829esgr:StonePointMembersrt:AffiliatedEntityMember2020-06-30esgr:general_partner0001363829srt:AffiliatedEntityMemberesgr:TridentMember2013-11-060001363829esgr:NorthBayMemberesgr:NorthBayShareholdersMember2018-10-012018-10-010001363829esgr:NorthBayMemberesgr:TridentMember2018-10-012018-10-010001363829esgr:NorthBayMemberesgr:NorthBayShareholdersMember2019-04-012019-04-010001363829esgr:StarstoneMember2019-10-012019-10-0100013638292019-10-012019-10-010001363829srt:AffiliatedEntityMemberesgr:TridentMember2020-06-300001363829srt:AffiliatedEntityMemberesgr:TridentMember2019-12-310001363829esgr:MitchellInternationalMembersrt:AffiliatedEntityMember2018-12-310001363829esgr:SoundPointCapitalMembersrt:AffiliatedEntityMemberus-gaap:SeniorLoansMember2020-06-300001363829esgr:SoundPointCapitalMembersrt:AffiliatedEntityMemberus-gaap:SeniorLoansMember2020-04-012020-06-300001363829esgr:StonePointAndAffiliatedEntitiesMemberus-gaap:ShortTermInvestmentsMember2020-06-300001363829esgr:StonePointAndAffiliatedEntitiesMemberus-gaap:ShortTermInvestmentsMember2019-12-310001363829esgr:StonePointAndAffiliatedEntitiesMemberus-gaap:FixedMaturitiesMember2020-06-300001363829esgr:StonePointAndAffiliatedEntitiesMemberus-gaap:FixedMaturitiesMember2019-12-310001363829esgr:StonePointAndAffiliatedEntitiesMember2020-06-300001363829esgr:StonePointAndAffiliatedEntitiesMember2019-12-310001363829esgr:StonePointAndAffiliatedEntitiesMemberus-gaap:HedgeFundsMember2020-06-300001363829esgr:StonePointAndAffiliatedEntitiesMemberus-gaap:HedgeFundsMember2019-12-310001363829esgr:StonePointAndAffiliatedEntitiesMemberus-gaap:FixedIncomeFundsMember2020-06-300001363829esgr:StonePointAndAffiliatedEntitiesMemberus-gaap:FixedIncomeFundsMember2019-12-310001363829esgr:StonePointAndAffiliatedEntitiesMemberus-gaap:PrivateEquityFundsMember2020-06-300001363829esgr:StonePointAndAffiliatedEntitiesMemberus-gaap:PrivateEquityFundsMember2019-12-310001363829esgr:CLOEquityMemberesgr:StonePointAndAffiliatedEntitiesMember2020-06-300001363829esgr:CLOEquityMemberesgr:StonePointAndAffiliatedEntitiesMember2019-12-310001363829esgr:CLOEquityFundsMemberesgr:StonePointAndAffiliatedEntitiesMember2020-06-300001363829esgr:CLOEquityFundsMemberesgr:StonePointAndAffiliatedEntitiesMember2019-12-310001363829esgr:StonePointAndAffiliatedEntitiesMemberesgr:PrivateDebtMember2020-06-300001363829esgr:StonePointAndAffiliatedEntitiesMemberesgr:PrivateDebtMember2019-12-310001363829esgr:StonePointAndAffiliatedEntitiesMemberus-gaap:RealEstateFundsMember2020-06-300001363829esgr:StonePointAndAffiliatedEntitiesMemberus-gaap:RealEstateFundsMember2019-12-310001363829esgr:StonePointAndAffiliatedEntitiesMember2020-04-012020-06-300001363829esgr:StonePointAndAffiliatedEntitiesMember2019-04-012019-06-300001363829esgr:StonePointAndAffiliatedEntitiesMember2020-01-012020-06-300001363829esgr:StonePointAndAffiliatedEntitiesMember2019-01-012019-06-300001363829srt:AffiliatedEntityMemberesgr:HillhouseAffiliatesMember2020-06-300001363829esgr:HillhouseMemberesgr:InReFundMembersrt:AffiliatedEntityMember2020-06-300001363829esgr:HillhouseInReFundL.P.Memberus-gaap:FixedIncomeSecuritiesMembersrt:AffiliatedEntityMember2020-01-012020-06-300001363829esgr:NorthAmericanEquitiesMemberesgr:HillhouseInReFundL.P.Membersrt:AffiliatedEntityMember2020-01-012020-06-300001363829esgr:HillhouseInReFundL.P.Membersrt:AffiliatedEntityMemberesgr:InternationalEquitiesMember2020-01-012020-06-300001363829esgr:FinancingDerivativesAndOtherItemsMemberesgr:HillhouseInReFundL.P.Membersrt:AffiliatedEntityMember2020-01-012020-06-300001363829esgr:HillhouseMembersrt:AffiliatedEntityMemberesgr:HillhouseAffiliatesMember2020-06-300001363829esgr:HillhouseMembersrt:AffiliatedEntityMemberesgr:HillhouseAffiliatesMember2019-12-310001363829esgr:HillhouseMembersrt:AffiliatedEntityMember2020-06-300001363829esgr:HillhouseMembersrt:AffiliatedEntityMember2019-12-310001363829esgr:HillhouseMemberesgr:InReFundMembersrt:AffiliatedEntityMember2019-12-310001363829esgr:HillhouseMembersrt:AffiliatedEntityMemberesgr:OtherFundsMember2020-06-300001363829esgr:HillhouseMembersrt:AffiliatedEntityMemberesgr:OtherFundsMember2019-12-310001363829esgr:HillhouseMember2020-06-300001363829esgr:HillhouseMember2019-12-310001363829esgr:HillhouseMembersrt:AffiliatedEntityMember2020-01-012020-06-300001363829esgr:MonumentMember2016-10-012020-06-300001363829esgr:MonumentMember2016-10-012019-12-31iso4217:EUR0001363829esgr:SubsidiaryOfMonumentMemberesgr:TransferOfLifeAssurancePoliciesMember2019-05-310001363829esgr:MonumentMember2020-04-012020-06-300001363829esgr:MonumentMember2020-01-012020-06-3000013638292017-01-010001363829us-gaap:EquityMethodInvesteeMemberesgr:ClearSpringMember2020-06-300001363829esgr:StarstoneMemberesgr:ClearSpringMember2020-06-300001363829esgr:StarstoneMemberesgr:ClearSpringMember2019-12-310001363829esgr:StarstoneMemberesgr:ClearSpringMember2017-01-012017-01-010001363829esgr:ClearSpringMember2017-01-012017-01-010001363829esgr:StarstoneMemberus-gaap:EquityMethodInvesteeMemberesgr:ClearSpringMember2020-06-300001363829esgr:StarstoneMemberus-gaap:EquityMethodInvesteeMemberesgr:ClearSpringMember2019-12-310001363829esgr:ClearSpringMember2020-06-300001363829esgr:ClearSpringMember2019-12-310001363829esgr:StarstoneMembersrt:AffiliatedEntityMemberesgr:ClearSpringMember2020-04-012020-06-300001363829esgr:StarstoneMembersrt:AffiliatedEntityMemberesgr:ClearSpringMember2019-04-012019-06-300001363829esgr:StarstoneMembersrt:AffiliatedEntityMemberesgr:ClearSpringMember2020-01-012020-06-300001363829esgr:StarstoneMembersrt:AffiliatedEntityMemberesgr:ClearSpringMember2019-01-012019-06-300001363829srt:AffiliatedEntityMemberesgr:ClearSpringMember2020-04-012020-06-300001363829srt:AffiliatedEntityMemberesgr:ClearSpringMember2019-04-012019-06-300001363829srt:AffiliatedEntityMemberesgr:ClearSpringMember2020-01-012020-06-300001363829srt:AffiliatedEntityMemberesgr:ClearSpringMember2019-01-012019-06-300001363829esgr:EvergreenParentL.P.Membersrt:AffiliatedEntityMember2018-11-012018-11-300001363829esgr:AmTrustFinancialServicesInc.Membersrt:AffiliatedEntityMember2018-11-300001363829esgr:EvergreenParentL.P.Membersrt:AffiliatedEntityMember2019-12-012019-12-310001363829esgr:EvergreenParentL.P.Membersrt:AffiliatedEntityMember2019-12-310001363829esgr:TridentPineMemberesgr:EvergreenParentL.P.Membersrt:AffiliatedEntityMember2018-11-300001363829esgr:EvergreenParentL.P.Membersrt:AffiliatedEntityMember2018-01-012018-12-310001363829srt:AffiliatedEntityMemberesgr:AmTrustFinancialServicesInc.Member2020-06-300001363829srt:AffiliatedEntityMemberesgr:AmTrustFinancialServicesInc.Member2019-12-310001363829srt:AffiliatedEntityMemberesgr:AmTrustFinancialServicesInc.Member2020-04-012020-06-300001363829srt:AffiliatedEntityMemberesgr:AmTrustFinancialServicesInc.Member2019-04-012019-06-300001363829srt:AffiliatedEntityMemberesgr:AmTrustFinancialServicesInc.Member2020-01-012020-06-300001363829srt:AffiliatedEntityMemberesgr:AmTrustFinancialServicesInc.Member2019-01-012019-06-300001363829esgr:CitcoIIILimitedMembersrt:AffiliatedEntityMemberesgr:TridentMember2018-06-012018-06-300001363829esgr:CitcoIIILimitedMembersrt:AffiliatedEntityMemberesgr:TridentMember2020-06-300001363829srt:AffiliatedEntityMemberesgr:EnhanzedReMember2018-12-310001363829esgr:EnhanzedReMemberesgr:EnstarMember2018-12-310001363829esgr:EnhanzedReMemberesgr:AllianzMember2018-12-310001363829esgr:HillhouseMemberesgr:EnhanzedReMember2018-12-310001363829esgr:EnhanzedReMemberesgr:EnstarMember2020-06-300001363829esgr:EnhanzedReMemberesgr:ZurichMember2020-01-012020-06-300001363829srt:AffiliatedEntityMemberesgr:EnhanzedReMember2020-06-300001363829srt:AffiliatedEntityMemberesgr:EnhanzedReMember2019-12-310001363829srt:AffiliatedEntityMemberesgr:EnhanzedReMember2020-04-012020-06-300001363829srt:AffiliatedEntityMemberesgr:EnhanzedReMember2019-04-012019-06-300001363829srt:AffiliatedEntityMemberesgr:EnhanzedReMember2020-01-012020-06-300001363829srt:AffiliatedEntityMemberesgr:EnhanzedReMember2019-01-012019-06-300001363829country:US2020-01-012020-06-300001363829esgr:LimitedParentalGuaranteeMember2020-06-300001363829esgr:LimitedParentalGuaranteeMember2019-12-310001363829srt:MinimumMember2020-06-300001363829srt:MaximumMember2020-06-30

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 June 30, 2020
Commission File Number 001-33289
esgr-20200630_g1.jpg
ENSTAR GROUP LIMITED
(Exact name of Registrant as specified in its charter)
BERMUDAN/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: (441292-3645
Securities registered pursuant to Section 12(b) of the Act:
Title of Each ClassTrading Symbol(s)Name of Each Exchange on Which Registered
Ordinary shares, par value $1.00 per shareESGRThe NASDAQ Stock MarketLLC
Depositary Shares, Each Representing a 1/1,000th Interest in a 7.00% ESGRPThe NASDAQ Stock MarketLLC
Fixed-to-Floating Rate Perpetual Non-Cumulative Preferred Share, Series D, Par Value $1.00 Per Share
Depositary Shares, Each Representing a 1/1,000th Interest in a 7.00%ESGROThe NASDAQ Stock MarketLLC
Perpetual Non-Cumulative Preferred Share, Series E, Par Value $1.00 Per Share
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 filerþAccelerated filer¨Non-accelerated filer¨Smaller reporting companyEmerging 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
As at August 7, 2020, the registrant had outstanding 18,636,497 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 June 30, 2020

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 STATEMENTSPage