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v2.4.1.9

Condensed Consolidating Financial Information Provided In Connection With Outstanding Debt Of Subsidiaries (Condensed Consolidating Balance Sheet) (Details) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
--- | --- | --- | --- | ---
Assets |  |  |  |
Total investments | $ 6,743,750 us-gaap_Investments | $ 6,821,712 us-gaap_Investments |  |
Cash and cash equivalents | 525,584 us-gaap_CashAndCashEquivalentsAtCarryingValue | 408,032 us-gaap_CashAndCashEquivalentsAtCarryingValue | 304,145 us-gaap_CashAndCashEquivalentsAtCarryingValue | 181,825 us-gaap_CashAndCashEquivalentsAtCarryingValue
Investments in subsidiaries | 0 us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures | 0 us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures |  |
Due from subsidiaries and affiliates | 0 us-gaap_DueFromRelatedParties | 0 us-gaap_DueFromRelatedParties |  |
Premiums receivable | 440,007 us-gaap_PremiumsReceivableAtCarryingValue | 474,087 us-gaap_PremiumsReceivableAtCarryingValue |  |
Prepaid reinsurance premiums | 94,810 us-gaap_PrepaidReinsurancePremiums | 66,132 us-gaap_PrepaidReinsurancePremiums |  |
Reinsurance recoverable | 66,694 us-gaap_ReinsuranceRecoverables | 101,025 us-gaap_ReinsuranceRecoverables | 192,512 us-gaap_ReinsuranceRecoverables |
Accrued investment income | 26,509 us-gaap_AccruedInvestmentIncomeReceivable | 34,065 us-gaap_AccruedInvestmentIncomeReceivable |  |
Deferred acquisition costs | 110,059 us-gaap_DeferredPolicyAcquisitionCosts | 81,684 us-gaap_DeferredPolicyAcquisitionCosts |  |
Receivable for investments sold | 52,390 us-gaap_ReceivablesFromBrokersDealersAndClearingOrganizations | 75,845 us-gaap_ReceivablesFromBrokersDealersAndClearingOrganizations |  |
Other assets | 143,747 rnr_OtherAssetsNet | 116,549 rnr_OtherAssetsNet |  |
Total assets | 8,203,550 us-gaap_Assets | 8,179,131 us-gaap_Assets |  |
Liabilities |  |  |  |
Reserve for claims and claim expenses | 1,412,510 us-gaap_LiabilityForClaimsAndClaimsAdjustmentExpense | 1,563,730 us-gaap_LiabilityForClaimsAndClaimsAdjustmentExpense | 1,879,377 us-gaap_LiabilityForClaimsAndClaimsAdjustmentExpense |
Unearned premiums | 512,386 us-gaap_UnearnedPremiums | 477,888 us-gaap_UnearnedPremiums |  |
Debt | 249,522 us-gaap_NotesAndLoansPayable | 249,430 us-gaap_NotesAndLoansPayable |  |
Amounts due to subsidiaries and affiliates | 0 us-gaap_DueToAffiliateCurrentAndNoncurrent | 0 us-gaap_DueToAffiliateCurrentAndNoncurrent |  |
Reinsurance balances payable | 454,580 us-gaap_ReinsurancePayable | 293,022 us-gaap_ReinsurancePayable |  |
Payable for investments purchased | 203,021 us-gaap_PayablesToBrokerDealersAndClearingOrganizations | 193,221 us-gaap_PayablesToBrokerDealersAndClearingOrganizations |  |
Other liabilities | 374,108 us-gaap_OtherLiabilities | 397,596 us-gaap_OtherLiabilities |  |
Total liabilities | 3,206,127 us-gaap_Liabilities | 3,174,887 us-gaap_Liabilities |  |
Redeemable noncontrolling interests | 1,131,708 us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount | 1,099,860 us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount |  |
Shareholders' Equity |  |  |  |
Total shareholders’ equity | 3,865,715 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest | 3,904,384 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest | 3,507,056 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest |
Total liabilities, noncontrolling interests and shareholders’ equity | 8,203,550 us-gaap_LiabilitiesAndStockholdersEquity | 8,179,131 us-gaap_LiabilitiesAndStockholdersEquity |  |
RenaissanceRe Holdings Ltd. (Parent Guarantor) |  |  |  |
Assets |  |  |  |
Total investments | 137,006 us-gaap_Investments / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 210,719 us-gaap_Investments / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  |
Cash and cash equivalents | 5,986 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 8,796 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 6,298 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 10,606 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Investments in subsidiaries | 3,509,974 us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 3,294,729 us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  |
Due from subsidiaries and affiliates | 126,548 us-gaap_DueFromRelatedParties / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 296,752 us-gaap_DueFromRelatedParties / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  |
Premiums receivable | 0 us-gaap_PremiumsReceivableAtCarryingValue / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_PremiumsReceivableAtCarryingValue / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  |
Prepaid reinsurance premiums | 0 us-gaap_PrepaidReinsurancePremiums / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_PrepaidReinsurancePremiums / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  |
Reinsurance recoverable | 0 us-gaap_ReinsuranceRecoverables / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_ReinsuranceRecoverables / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  |
Accrued investment income | 0 us-gaap_AccruedInvestmentIncomeReceivable / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_AccruedInvestmentIncomeReceivable / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  |
Deferred acquisition costs | 0 us-gaap_DeferredPolicyAcquisitionCosts / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_DeferredPolicyAcquisitionCosts / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  |
Receivable for investments sold | 10 us-gaap_ReceivablesFromBrokersDealersAndClearingOrganizations / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 14 us-gaap_ReceivablesFromBrokersDealersAndClearingOrganizations / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  |
Other assets | 112,400 rnr_OtherAssetsNet / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 112,234 rnr_OtherAssetsNet / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  |
Total assets | 3,891,924 us-gaap_Assets / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 3,923,244 us-gaap_Assets / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  |
Liabilities |  |  |  |
Reserve for claims and claim expenses | 0 us-gaap_LiabilityForClaimsAndClaimsAdjustmentExpense / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_LiabilityForClaimsAndClaimsAdjustmentExpense / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  |
Unearned premiums | 0 us-gaap_UnearnedPremiums / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_UnearnedPremiums / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  |
Debt | 0 us-gaap_NotesAndLoansPayable / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_NotesAndLoansPayable / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  |
Amounts due to subsidiaries and affiliates | 6,000 us-gaap_DueToAffiliateCurrentAndNoncurrent / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_DueToAffiliateCurrentAndNoncurrent / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  |
Reinsurance balances payable | 0 us-gaap_ReinsurancePayable / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_ReinsurancePayable / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  |
Payable for investments purchased | 0 us-gaap_PayablesToBrokerDealersAndClearingOrganizations / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_PayablesToBrokerDealersAndClearingOrganizations / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  |
Other liabilities | 20,209 us-gaap_OtherLiabilities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 18,860 us-gaap_OtherLiabilities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  |
Total liabilities | 26,209 us-gaap_Liabilities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 18,860 us-gaap_Liabilities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  |
Redeemable noncontrolling interests | 0 us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  |
Shareholders' Equity |  |  |  |
Total shareholders’ equity | 3,865,715 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 3,904,384 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  |
Total liabilities, noncontrolling interests and shareholders’ equity | 3,891,924 us-gaap_LiabilitiesAndStockholdersEquity / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 3,923,244 us-gaap_LiabilitiesAndStockholdersEquity / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |  |
RenRe North America Holdings Inc. (Subsidiary Issuer) |  |  |  |
Assets |  |  |  |
Total investments | 88,150 us-gaap_Investments / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 98,784 us-gaap_Investments / dei_LegalEntityAxis = us-gaap_SubsidiariesMember |  |
Cash and cash equivalents | 1,033 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 4,027 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 1,528 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 4,920 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_SubsidiariesMember
Investments in subsidiaries | 71,796 us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 74,718 us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures / dei_LegalEntityAxis = us-gaap_SubsidiariesMember |  |
Due from subsidiaries and affiliates | 23 us-gaap_DueFromRelatedParties / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 0 us-gaap_DueFromRelatedParties / dei_LegalEntityAxis = us-gaap_SubsidiariesMember |  |
Premiums receivable | 0 us-gaap_PremiumsReceivableAtCarryingValue / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 0 us-gaap_PremiumsReceivableAtCarryingValue / dei_LegalEntityAxis = us-gaap_SubsidiariesMember |  |
Prepaid reinsurance premiums | 0 us-gaap_PrepaidReinsurancePremiums / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 0 us-gaap_PrepaidReinsurancePremiums / dei_LegalEntityAxis = us-gaap_SubsidiariesMember |  |
Reinsurance recoverable | 0 us-gaap_ReinsuranceRecoverables / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 0 us-gaap_ReinsuranceRecoverables / dei_LegalEntityAxis = us-gaap_SubsidiariesMember |  |
Accrued investment income | 121 us-gaap_AccruedInvestmentIncomeReceivable / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 110 us-gaap_AccruedInvestmentIncomeReceivable / dei_LegalEntityAxis = us-gaap_SubsidiariesMember |  |
Deferred acquisition costs | 0 us-gaap_DeferredPolicyAcquisitionCosts / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 0 us-gaap_DeferredPolicyAcquisitionCosts / dei_LegalEntityAxis = us-gaap_SubsidiariesMember |  |
Receivable for investments sold | 0 us-gaap_ReceivablesFromBrokersDealersAndClearingOrganizations / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 0 us-gaap_ReceivablesFromBrokersDealersAndClearingOrganizations / dei_LegalEntityAxis = us-gaap_SubsidiariesMember |  |
Other assets | 1,242 rnr_OtherAssetsNet / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 1,481 rnr_OtherAssetsNet / dei_LegalEntityAxis = us-gaap_SubsidiariesMember |  |
Total assets | 162,365 us-gaap_Assets / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 179,120 us-gaap_Assets / dei_LegalEntityAxis = us-gaap_SubsidiariesMember |  |
Liabilities |  |  |  |
Reserve for claims and claim expenses | 0 us-gaap_LiabilityForClaimsAndClaimsAdjustmentExpense / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 0 us-gaap_LiabilityForClaimsAndClaimsAdjustmentExpense / dei_LegalEntityAxis = us-gaap_SubsidiariesMember |  |
Unearned premiums | 0 us-gaap_UnearnedPremiums / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 0 us-gaap_UnearnedPremiums / dei_LegalEntityAxis = us-gaap_SubsidiariesMember |  |
Debt | 249,522 us-gaap_NotesAndLoansPayable / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 249,430 us-gaap_NotesAndLoansPayable / dei_LegalEntityAxis = us-gaap_SubsidiariesMember |  |
Amounts due to subsidiaries and affiliates | 233 us-gaap_DueToAffiliateCurrentAndNoncurrent / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 3,173 us-gaap_DueToAffiliateCurrentAndNoncurrent / dei_LegalEntityAxis = us-gaap_SubsidiariesMember |  |
Reinsurance balances payable | 0 us-gaap_ReinsurancePayable / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 0 us-gaap_ReinsurancePayable / dei_LegalEntityAxis = us-gaap_SubsidiariesMember |  |
Payable for investments purchased | 0 us-gaap_PayablesToBrokerDealersAndClearingOrganizations / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 0 us-gaap_PayablesToBrokerDealersAndClearingOrganizations / dei_LegalEntityAxis = us-gaap_SubsidiariesMember |  |
Other liabilities | 4,013 us-gaap_OtherLiabilities / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 6,953 us-gaap_OtherLiabilities / dei_LegalEntityAxis = us-gaap_SubsidiariesMember |  |
Total liabilities | 253,768 us-gaap_Liabilities / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 259,556 us-gaap_Liabilities / dei_LegalEntityAxis = us-gaap_SubsidiariesMember |  |
Redeemable noncontrolling interests | 0 us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 0 us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount / dei_LegalEntityAxis = us-gaap_SubsidiariesMember |  |
Shareholders' Equity |  |  |  |
Total shareholders’ equity | (91,403)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | (80,436)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_SubsidiariesMember |  |
Total liabilities, noncontrolling interests and shareholders’ equity | 162,365 us-gaap_LiabilitiesAndStockholdersEquity / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 179,120 us-gaap_LiabilitiesAndStockholdersEquity / dei_LegalEntityAxis = us-gaap_SubsidiariesMember |  |
Other RenaissanceRe Holdings Ltd. Subsidiaries And Eliminations (Non-Guarantor Subsidiaries) |  |  |  |
Assets |  |  |  |
Total investments | 6,518,594 us-gaap_Investments / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 6,512,209 us-gaap_Investments / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  |
Cash and cash equivalents | 518,565 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 395,209 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 296,319 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 166,299 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Investments in subsidiaries | 0 us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 0 us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  |
Due from subsidiaries and affiliates | 0 us-gaap_DueFromRelatedParties / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 0 us-gaap_DueFromRelatedParties / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  |
Premiums receivable | 440,007 us-gaap_PremiumsReceivableAtCarryingValue / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 474,087 us-gaap_PremiumsReceivableAtCarryingValue / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  |
Prepaid reinsurance premiums | 94,810 us-gaap_PrepaidReinsurancePremiums / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 66,132 us-gaap_PrepaidReinsurancePremiums / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  |
Reinsurance recoverable | 66,694 us-gaap_ReinsuranceRecoverables / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 101,025 us-gaap_ReinsuranceRecoverables / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  |
Accrued investment income | 26,388 us-gaap_AccruedInvestmentIncomeReceivable / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 33,955 us-gaap_AccruedInvestmentIncomeReceivable / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  |
Deferred acquisition costs | 110,059 us-gaap_DeferredPolicyAcquisitionCosts / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 81,684 us-gaap_DeferredPolicyAcquisitionCosts / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  |
Receivable for investments sold | 52,380 us-gaap_ReceivablesFromBrokersDealersAndClearingOrganizations / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 75,831 us-gaap_ReceivablesFromBrokersDealersAndClearingOrganizations / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  |
Other assets | 131,563 rnr_OtherAssetsNet / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 102,834 rnr_OtherAssetsNet / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  |
Total assets | 7,959,060 us-gaap_Assets / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 7,842,966 us-gaap_Assets / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  |
Liabilities |  |  |  |
Reserve for claims and claim expenses | 1,412,510 us-gaap_LiabilityForClaimsAndClaimsAdjustmentExpense / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 1,563,730 us-gaap_LiabilityForClaimsAndClaimsAdjustmentExpense / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  |
Unearned premiums | 512,386 us-gaap_UnearnedPremiums / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 477,888 us-gaap_UnearnedPremiums / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  |
Debt | 0 us-gaap_NotesAndLoansPayable / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 0 us-gaap_NotesAndLoansPayable / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  |
Amounts due to subsidiaries and affiliates | 0 us-gaap_DueToAffiliateCurrentAndNoncurrent / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 0 us-gaap_DueToAffiliateCurrentAndNoncurrent / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  |
Reinsurance balances payable | 454,580 us-gaap_ReinsurancePayable / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 293,022 us-gaap_ReinsurancePayable / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  |
Payable for investments purchased | 203,021 us-gaap_PayablesToBrokerDealersAndClearingOrganizations / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 193,221 us-gaap_PayablesToBrokerDealersAndClearingOrganizations / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  |
Other liabilities | 351,344 us-gaap_OtherLiabilities / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 371,783 us-gaap_OtherLiabilities / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  |
Total liabilities | 2,933,841 us-gaap_Liabilities / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 2,899,644 us-gaap_Liabilities / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  |
Redeemable noncontrolling interests | 1,131,708 us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 1,099,860 us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  |
Shareholders' Equity |  |  |  |
Total shareholders’ equity | 3,893,511 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 3,843,462 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  |
Total liabilities, noncontrolling interests and shareholders’ equity | 7,959,060 us-gaap_LiabilitiesAndStockholdersEquity / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 7,842,966 us-gaap_LiabilitiesAndStockholdersEquity / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |  |
Consolidating Adjustments |  |  |  |
Assets |  |  |  |
Total investments | 0 us-gaap_Investments / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_Investments / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  |
Cash and cash equivalents | 0 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  |
Investments in subsidiaries | (3,581,770)us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (3,369,447)us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  |
Due from subsidiaries and affiliates | (126,571)us-gaap_DueFromRelatedParties / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (296,752)us-gaap_DueFromRelatedParties / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  |
Premiums receivable | 0 us-gaap_PremiumsReceivableAtCarryingValue / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_PremiumsReceivableAtCarryingValue / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  |
Prepaid reinsurance premiums | 0 us-gaap_PrepaidReinsurancePremiums / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_PrepaidReinsurancePremiums / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  |
Reinsurance recoverable | 0 us-gaap_ReinsuranceRecoverables / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_ReinsuranceRecoverables / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  |
Accrued investment income | 0 us-gaap_AccruedInvestmentIncomeReceivable / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_AccruedInvestmentIncomeReceivable / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  |
Deferred acquisition costs | 0 us-gaap_DeferredPolicyAcquisitionCosts / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_DeferredPolicyAcquisitionCosts / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  |
Receivable for investments sold | 0 us-gaap_ReceivablesFromBrokersDealersAndClearingOrganizations / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_ReceivablesFromBrokersDealersAndClearingOrganizations / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  |
Other assets | (101,458)rnr_OtherAssetsNet / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (100,000)rnr_OtherAssetsNet / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  |
Total assets | (3,809,799)us-gaap_Assets / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (3,766,199)us-gaap_Assets / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  |
Liabilities |  |  |  |
Reserve for claims and claim expenses | 0 us-gaap_LiabilityForClaimsAndClaimsAdjustmentExpense / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_LiabilityForClaimsAndClaimsAdjustmentExpense / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  |
Unearned premiums | 0 us-gaap_UnearnedPremiums / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_UnearnedPremiums / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  |
Debt | 0 us-gaap_NotesAndLoansPayable / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_NotesAndLoansPayable / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  |
Amounts due to subsidiaries and affiliates | (6,233)us-gaap_DueToAffiliateCurrentAndNoncurrent / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (3,173)us-gaap_DueToAffiliateCurrentAndNoncurrent / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  |
Reinsurance balances payable | 0 us-gaap_ReinsurancePayable / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_ReinsurancePayable / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  |
Payable for investments purchased | 0 us-gaap_PayablesToBrokerDealersAndClearingOrganizations / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_PayablesToBrokerDealersAndClearingOrganizations / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  |
Other liabilities | (1,458)us-gaap_OtherLiabilities / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_OtherLiabilities / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  |
Total liabilities | (7,691)us-gaap_Liabilities / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (3,173)us-gaap_Liabilities / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  |
Redeemable noncontrolling interests | 0 us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  |
Shareholders' Equity |  |  |  |
Total shareholders’ equity | (3,802,108)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (3,763,026)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  |
Total liabilities, noncontrolling interests and shareholders’ equity | $ (3,809,799)us-gaap_LiabilitiesAndStockholdersEquity / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | $ (3,766,199)us-gaap_LiabilitiesAndStockholdersEquity / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember |  |

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