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Condensed Consolidating Financial Information Provided In Connection With Outstanding Debt Of Subsidiaries (Condensed Consolidating Statement Of Cash Flows) (Details) (USD $) | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Cash flows provided by (used in) operating activities: |  |  |
Net cash provided by (used in) operating activities | $ 660,657,000 us-gaap_NetCashProvidedByUsedInOperatingActivities | $ 795,721,000 us-gaap_NetCashProvidedByUsedInOperatingActivities | $ 716,929,000 us-gaap_NetCashProvidedByUsedInOperatingActivities
Cash flows provided by (used in) investing activities |  |  |
Proceeds from sales and maturities of fixed maturity investments trading | 7,682,573,000 us-gaap_ProceedsFromSaleAndMaturityOfTradingSecuritiesHeldforinvestment | 8,251,405,000 us-gaap_ProceedsFromSaleAndMaturityOfTradingSecuritiesHeldforinvestment | 8,192,867,000 us-gaap_ProceedsFromSaleAndMaturityOfTradingSecuritiesHeldforinvestment
Purchases of fixed maturity investments trading | (7,639,178,000)us-gaap_PaymentsToAcquireTradingSecuritiesHeldforinvestment | (8,466,467,000)us-gaap_PaymentsToAcquireTradingSecuritiesHeldforinvestment | (8,536,238,000)us-gaap_PaymentsToAcquireTradingSecuritiesHeldforinvestment
Proceeds from sales and maturities of fixed maturity investments available for sale | 7,088,000 us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities | 45,178,000 us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities | 65,168,000 us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities
Net (purchases) sales of equity investments trading | (20,003,000)us-gaap_ProceedsFromPaymentsForTradingSecurities | (33,055,000)us-gaap_ProceedsFromPaymentsForTradingSecurities | 0 us-gaap_ProceedsFromPaymentsForTradingSecurities
Net (purchases) sales of short term investments | 45,023,000 rnr_PaymentsForProceedsFromOtherShortTermInvestments | (246,971,000)rnr_PaymentsForProceedsFromOtherShortTermInvestments | 68,777,000 rnr_PaymentsForProceedsFromOtherShortTermInvestments
Net sales of other investments | 59,120,000 rnr_PaymentsForProceedsFromOtherInvestments | 76,214,000 rnr_PaymentsForProceedsFromOtherInvestments | 150,828,000 rnr_PaymentsForProceedsFromOtherInvestments
Net purchases of investments in other ventures | 1,030,000 us-gaap_PaymentsToAcquireEquityMethodInvestments | (4,000,000)us-gaap_PaymentsToAcquireEquityMethodInvestments | 0 us-gaap_PaymentsToAcquireEquityMethodInvestments
Net sales (purchases) of other assets | 6,000,000 us-gaap_PaymentsForProceedsFromOtherInvestingActivities | 2,181,000 us-gaap_PaymentsForProceedsFromOtherInvestingActivities | (4,079,000)us-gaap_PaymentsForProceedsFromOtherInvestingActivities
Dividends and return of capital from subsidiaries | 0 us-gaap_ProceedsFromContributionsFromAffiliates | 0 us-gaap_ProceedsFromContributionsFromAffiliates | 0 us-gaap_ProceedsFromContributionsFromAffiliates
Contributions to subsidiaries | 0 us-gaap_PaymentsToAcquireInterestInSubsidiariesAndAffiliates | 0 us-gaap_PaymentsToAcquireInterestInSubsidiariesAndAffiliates | 0 us-gaap_PaymentsToAcquireInterestInSubsidiariesAndAffiliates
Due (from) to subsidiary | 0 us-gaap_IncreaseDecreaseInDueToRelatedParties | 0 us-gaap_IncreaseDecreaseInDueToRelatedParties | 0 us-gaap_IncreaseDecreaseInDueToRelatedParties
Net proceeds (payments) related to sale of discontinued operations | 0 us-gaap_ProceedsFromDivestitureOfBusinessesAndInterestsInAffiliates | 60,000,000 us-gaap_ProceedsFromDivestitureOfBusinessesAndInterestsInAffiliates | (9,000,000)us-gaap_ProceedsFromDivestitureOfBusinessesAndInterestsInAffiliates
Net cash provided by (used in) investing activities | 141,653,000 us-gaap_NetCashProvidedByUsedInInvestingActivities | (315,515,000)us-gaap_NetCashProvidedByUsedInInvestingActivities | (71,677,000)us-gaap_NetCashProvidedByUsedInInvestingActivities
Cash flows provided by (used in) financing activities |  |  |
Dividends paid – RenaissanceRe common shares | (45,912,000)us-gaap_PaymentsOfDividendsCommonStock | (49,267,000)us-gaap_PaymentsOfDividendsCommonStock | (53,356,000)us-gaap_PaymentsOfDividendsCommonStock
Dividends paid – preference shares | (22,381,000)us-gaap_PaymentsOfDividendsPreferredStockAndPreferenceStock | (24,948,000)us-gaap_PaymentsOfDividendsPreferredStockAndPreferenceStock | (34,895,000)us-gaap_PaymentsOfDividendsPreferredStockAndPreferenceStock
RenaissanceRe common share repurchases | (514,678,000)us-gaap_PaymentsForRepurchaseOfCommonStock | (207,410,000)us-gaap_PaymentsForRepurchaseOfCommonStock | (463,309,000)us-gaap_PaymentsForRepurchaseOfCommonStock
Net repayment of debt | 0 us-gaap_ProceedsFromRepaymentsOfDebt | (102,436,000)us-gaap_ProceedsFromRepaymentsOfDebt | (1,937,000)us-gaap_ProceedsFromRepaymentsOfDebt
Redemption of preference shares |  | (125,000,000)us-gaap_PaymentsForRepurchaseOfPreferredStockAndPreferenceStock | (150,000,000)us-gaap_PaymentsForRepurchaseOfPreferredStockAndPreferenceStock
Contribution of capital from parent |  | 0 us-gaap_ProceedsFromContributionsFromParent |
Net third party redeemable noncontrolling interest share transactions | (111,707,000)us-gaap_PaymentsForRepurchaseOfRedeemableNoncontrollingInterest | (5,750,000)us-gaap_PaymentsForRepurchaseOfRedeemableNoncontrollingInterest | 164,927,000 us-gaap_PaymentsForRepurchaseOfRedeemableNoncontrollingInterest
Net cash used in financing activities | (694,678,000)us-gaap_NetCashProvidedByUsedInFinancingActivities | (398,955,000)us-gaap_NetCashProvidedByUsedInFinancingActivities | (538,570,000)us-gaap_NetCashProvidedByUsedInFinancingActivities
Effect of exchange rate changes on foreign currency cash | 9,920,000 us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents | 1,423,000 us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents | 1,692,000 us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents
Net increase in cash and cash equivalents | 117,552,000 us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease | 82,674,000 us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease | 108,374,000 us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
Net decrease in cash and cash equivalents of discontinued operations | 0 us-gaap_NetCashProvidedByUsedInDiscontinuedOperations | 21,213,000 us-gaap_NetCashProvidedByUsedInDiscontinuedOperations | 13,946,000 us-gaap_NetCashProvidedByUsedInDiscontinuedOperations
Cash and cash equivalents, beginning of period | 408,032,000 us-gaap_CashAndCashEquivalentsAtCarryingValue | 304,145,000 us-gaap_CashAndCashEquivalentsAtCarryingValue | 181,825,000 us-gaap_CashAndCashEquivalentsAtCarryingValue
Cash and cash equivalents, end of period | 525,584,000 us-gaap_CashAndCashEquivalentsAtCarryingValue | 408,032,000 us-gaap_CashAndCashEquivalentsAtCarryingValue | 304,145,000 us-gaap_CashAndCashEquivalentsAtCarryingValue
RenaissanceRe Holdings Ltd. (Parent Guarantor) |  |  |
Cash flows provided by (used in) operating activities: |  |  |
Net cash provided by (used in) operating activities | 429,000 us-gaap_NetCashProvidedByUsedInOperatingActivities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (37,966,000)us-gaap_NetCashProvidedByUsedInOperatingActivities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 128,567,000 us-gaap_NetCashProvidedByUsedInOperatingActivities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Cash flows provided by (used in) investing activities |  |  |
Proceeds from sales and maturities of fixed maturity investments trading | 88,273,000 us-gaap_ProceedsFromSaleAndMaturityOfTradingSecuritiesHeldforinvestment / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 880,749,000 us-gaap_ProceedsFromSaleAndMaturityOfTradingSecuritiesHeldforinvestment / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 744,211,000 us-gaap_ProceedsFromSaleAndMaturityOfTradingSecuritiesHeldforinvestment / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Purchases of fixed maturity investments trading | (88,341,000)us-gaap_PaymentsToAcquireTradingSecuritiesHeldforinvestment / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (491,768,000)us-gaap_PaymentsToAcquireTradingSecuritiesHeldforinvestment / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (692,783,000)us-gaap_PaymentsToAcquireTradingSecuritiesHeldforinvestment / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Proceeds from sales and maturities of fixed maturity investments available for sale | 0 us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Net (purchases) sales of equity investments trading | 0 us-gaap_ProceedsFromPaymentsForTradingSecurities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_ProceedsFromPaymentsForTradingSecurities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |
Net (purchases) sales of short term investments | 73,717,000 rnr_PaymentsForProceedsFromOtherShortTermInvestments / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 21,217,000 rnr_PaymentsForProceedsFromOtherShortTermInvestments / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (80,485,000)rnr_PaymentsForProceedsFromOtherShortTermInvestments / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Net sales of other investments | 0 rnr_PaymentsForProceedsFromOtherInvestments / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 rnr_PaymentsForProceedsFromOtherInvestments / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 rnr_PaymentsForProceedsFromOtherInvestments / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Net purchases of investments in other ventures | 0 us-gaap_PaymentsToAcquireEquityMethodInvestments / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_PaymentsToAcquireEquityMethodInvestments / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |
Net sales (purchases) of other assets | 0 us-gaap_PaymentsForProceedsFromOtherInvestingActivities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_PaymentsForProceedsFromOtherInvestingActivities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_PaymentsForProceedsFromOtherInvestingActivities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Dividends and return of capital from subsidiaries | 1,259,224,000 us-gaap_ProceedsFromContributionsFromAffiliates / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 504,241,000 us-gaap_ProceedsFromContributionsFromAffiliates / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 979,311,000 us-gaap_ProceedsFromContributionsFromAffiliates / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Contributions to subsidiaries | (759,456,000)us-gaap_PaymentsToAcquireInterestInSubsidiariesAndAffiliates / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (500,652,000)us-gaap_PaymentsToAcquireInterestInSubsidiariesAndAffiliates / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (366,210,000)us-gaap_PaymentsToAcquireInterestInSubsidiariesAndAffiliates / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Due (from) to subsidiary | 6,315,000 us-gaap_IncreaseDecreaseInDueToRelatedParties / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 17,446,000 us-gaap_IncreaseDecreaseInDueToRelatedParties / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (15,359,000)us-gaap_IncreaseDecreaseInDueToRelatedParties / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Net proceeds (payments) related to sale of discontinued operations |  | 0 us-gaap_ProceedsFromDivestitureOfBusinessesAndInterestsInAffiliates / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_ProceedsFromDivestitureOfBusinessesAndInterestsInAffiliates / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Net cash provided by (used in) investing activities | 579,732,000 us-gaap_NetCashProvidedByUsedInInvestingActivities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 431,233,000 us-gaap_NetCashProvidedByUsedInInvestingActivities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 568,685,000 us-gaap_NetCashProvidedByUsedInInvestingActivities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Cash flows provided by (used in) financing activities |  |  |
Dividends paid – RenaissanceRe common shares | (45,912,000)us-gaap_PaymentsOfDividendsCommonStock / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (49,267,000)us-gaap_PaymentsOfDividendsCommonStock / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (53,356,000)us-gaap_PaymentsOfDividendsCommonStock / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Dividends paid – preference shares | (22,381,000)us-gaap_PaymentsOfDividendsPreferredStockAndPreferenceStock / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (24,948,000)us-gaap_PaymentsOfDividendsPreferredStockAndPreferenceStock / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (34,895,000)us-gaap_PaymentsOfDividendsPreferredStockAndPreferenceStock / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
RenaissanceRe common share repurchases | (514,678,000)us-gaap_PaymentsForRepurchaseOfCommonStock / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (207,410,000)us-gaap_PaymentsForRepurchaseOfCommonStock / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (463,309,000)us-gaap_PaymentsForRepurchaseOfCommonStock / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Net repayment of debt | 0 us-gaap_ProceedsFromRepaymentsOfDebt / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (100,000,000)us-gaap_ProceedsFromRepaymentsOfDebt / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_ProceedsFromRepaymentsOfDebt / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Redemption of preference shares |  | (125,000,000)us-gaap_PaymentsForRepurchaseOfPreferredStockAndPreferenceStock / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (150,000,000)us-gaap_PaymentsForRepurchaseOfPreferredStockAndPreferenceStock / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Contribution of capital from parent |  | 0 us-gaap_ProceedsFromContributionsFromParent / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |
Net third party redeemable noncontrolling interest share transactions | 0 us-gaap_PaymentsForRepurchaseOfRedeemableNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_PaymentsForRepurchaseOfRedeemableNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_PaymentsForRepurchaseOfRedeemableNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Net cash used in financing activities | (582,971,000)us-gaap_NetCashProvidedByUsedInFinancingActivities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (390,769,000)us-gaap_NetCashProvidedByUsedInFinancingActivities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (701,560,000)us-gaap_NetCashProvidedByUsedInFinancingActivities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Effect of exchange rate changes on foreign currency cash | 0 us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Net increase in cash and cash equivalents | (2,810,000)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 2,498,000 us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (4,308,000)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Net decrease in cash and cash equivalents of discontinued operations |  | 0 us-gaap_NetCashProvidedByUsedInDiscontinuedOperations / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_NetCashProvidedByUsedInDiscontinuedOperations / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Cash and cash equivalents, beginning of period | 8,796,000 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 6,298,000 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 10,606,000 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Cash and cash equivalents, end of period | 5,986,000 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 8,796,000 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 6,298,000 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
RenRe North America Holdings Inc. (Subsidiary Issuer) |  |  |
Cash flows provided by (used in) operating activities: |  |  |
Net cash provided by (used in) operating activities | (18,114,000)us-gaap_NetCashProvidedByUsedInOperatingActivities / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | (7,583,000)us-gaap_NetCashProvidedByUsedInOperatingActivities / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | (10,376,000)us-gaap_NetCashProvidedByUsedInOperatingActivities / dei_LegalEntityAxis = us-gaap_SubsidiariesMember
Cash flows provided by (used in) investing activities |  |  |
Proceeds from sales and maturities of fixed maturity investments trading | 20,487,000 us-gaap_ProceedsFromSaleAndMaturityOfTradingSecuritiesHeldforinvestment / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 185,143,000 us-gaap_ProceedsFromSaleAndMaturityOfTradingSecuritiesHeldforinvestment / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 140,626,000 us-gaap_ProceedsFromSaleAndMaturityOfTradingSecuritiesHeldforinvestment / dei_LegalEntityAxis = us-gaap_SubsidiariesMember
Purchases of fixed maturity investments trading | (14,969,000)us-gaap_PaymentsToAcquireTradingSecuritiesHeldforinvestment / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | (160,422,000)us-gaap_PaymentsToAcquireTradingSecuritiesHeldforinvestment / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | (73,800,000)us-gaap_PaymentsToAcquireTradingSecuritiesHeldforinvestment / dei_LegalEntityAxis = us-gaap_SubsidiariesMember
Proceeds from sales and maturities of fixed maturity investments available for sale | 0 us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 0 us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 0 us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities / dei_LegalEntityAxis = us-gaap_SubsidiariesMember
Net (purchases) sales of equity investments trading | 13,761,000 us-gaap_ProceedsFromPaymentsForTradingSecurities / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | (81,437,000)us-gaap_ProceedsFromPaymentsForTradingSecurities / dei_LegalEntityAxis = us-gaap_SubsidiariesMember |
Net (purchases) sales of short term investments | 225,000 rnr_PaymentsForProceedsFromOtherShortTermInvestments / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 9,399,000 rnr_PaymentsForProceedsFromOtherShortTermInvestments / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | (10,624,000)rnr_PaymentsForProceedsFromOtherShortTermInvestments / dei_LegalEntityAxis = us-gaap_SubsidiariesMember
Net sales of other investments | 0 rnr_PaymentsForProceedsFromOtherInvestments / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 0 rnr_PaymentsForProceedsFromOtherInvestments / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 0 rnr_PaymentsForProceedsFromOtherInvestments / dei_LegalEntityAxis = us-gaap_SubsidiariesMember
Net purchases of investments in other ventures | 0 us-gaap_PaymentsToAcquireEquityMethodInvestments / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 0 us-gaap_PaymentsToAcquireEquityMethodInvestments / dei_LegalEntityAxis = us-gaap_SubsidiariesMember |
Net sales (purchases) of other assets | 0 us-gaap_PaymentsForProceedsFromOtherInvestingActivities / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 0 us-gaap_PaymentsForProceedsFromOtherInvestingActivities / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 0 us-gaap_PaymentsForProceedsFromOtherInvestingActivities / dei_LegalEntityAxis = us-gaap_SubsidiariesMember
Dividends and return of capital from subsidiaries | 11,204,000 us-gaap_ProceedsFromContributionsFromAffiliates / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 83,593,000 us-gaap_ProceedsFromContributionsFromAffiliates / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 9,541,000 us-gaap_ProceedsFromContributionsFromAffiliates / dei_LegalEntityAxis = us-gaap_SubsidiariesMember
Contributions to subsidiaries | (12,625,000)us-gaap_PaymentsToAcquireInterestInSubsidiariesAndAffiliates / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | (38,117,000)us-gaap_PaymentsToAcquireInterestInSubsidiariesAndAffiliates / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | (50,000,000)us-gaap_PaymentsToAcquireInterestInSubsidiariesAndAffiliates / dei_LegalEntityAxis = us-gaap_SubsidiariesMember
Due (from) to subsidiary | (2,963,000)us-gaap_IncreaseDecreaseInDueToRelatedParties / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | (3,761,000)us-gaap_IncreaseDecreaseInDueToRelatedParties / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 241,000 us-gaap_IncreaseDecreaseInDueToRelatedParties / dei_LegalEntityAxis = us-gaap_SubsidiariesMember
Net proceeds (payments) related to sale of discontinued operations |  | 0 us-gaap_ProceedsFromDivestitureOfBusinessesAndInterestsInAffiliates / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | (9,000,000)us-gaap_ProceedsFromDivestitureOfBusinessesAndInterestsInAffiliates / dei_LegalEntityAxis = us-gaap_SubsidiariesMember
Net cash provided by (used in) investing activities | 15,120,000 us-gaap_NetCashProvidedByUsedInInvestingActivities / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | (5,602,000)us-gaap_NetCashProvidedByUsedInInvestingActivities / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 6,984,000 us-gaap_NetCashProvidedByUsedInInvestingActivities / dei_LegalEntityAxis = us-gaap_SubsidiariesMember
Cash flows provided by (used in) financing activities |  |  |
Dividends paid – RenaissanceRe common shares | 0 us-gaap_PaymentsOfDividendsCommonStock / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 0 us-gaap_PaymentsOfDividendsCommonStock / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 0 us-gaap_PaymentsOfDividendsCommonStock / dei_LegalEntityAxis = us-gaap_SubsidiariesMember
Dividends paid – preference shares | 0 us-gaap_PaymentsOfDividendsPreferredStockAndPreferenceStock / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 0 us-gaap_PaymentsOfDividendsPreferredStockAndPreferenceStock / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 0 us-gaap_PaymentsOfDividendsPreferredStockAndPreferenceStock / dei_LegalEntityAxis = us-gaap_SubsidiariesMember
RenaissanceRe common share repurchases | 0 us-gaap_PaymentsForRepurchaseOfCommonStock / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 0 us-gaap_PaymentsForRepurchaseOfCommonStock / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 0 us-gaap_PaymentsForRepurchaseOfCommonStock / dei_LegalEntityAxis = us-gaap_SubsidiariesMember
Net repayment of debt |  | 0 us-gaap_ProceedsFromRepaymentsOfDebt / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 0 us-gaap_ProceedsFromRepaymentsOfDebt / dei_LegalEntityAxis = us-gaap_SubsidiariesMember
Redemption of preference shares |  | 0 us-gaap_PaymentsForRepurchaseOfPreferredStockAndPreferenceStock / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 0 us-gaap_PaymentsForRepurchaseOfPreferredStockAndPreferenceStock / dei_LegalEntityAxis = us-gaap_SubsidiariesMember
Contribution of capital from parent |  | 15,684,000 us-gaap_ProceedsFromContributionsFromParent / dei_LegalEntityAxis = us-gaap_SubsidiariesMember |
Net third party redeemable noncontrolling interest share transactions | 0 us-gaap_PaymentsForRepurchaseOfRedeemableNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 0 us-gaap_PaymentsForRepurchaseOfRedeemableNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 0 us-gaap_PaymentsForRepurchaseOfRedeemableNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_SubsidiariesMember
Net cash used in financing activities | 0 us-gaap_NetCashProvidedByUsedInFinancingActivities / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 15,684,000 us-gaap_NetCashProvidedByUsedInFinancingActivities / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 0 us-gaap_NetCashProvidedByUsedInFinancingActivities / dei_LegalEntityAxis = us-gaap_SubsidiariesMember
Effect of exchange rate changes on foreign currency cash | 0 us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 0 us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 0 us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents / dei_LegalEntityAxis = us-gaap_SubsidiariesMember
Net increase in cash and cash equivalents | (2,994,000)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 2,499,000 us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | (3,392,000)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease / dei_LegalEntityAxis = us-gaap_SubsidiariesMember
Net decrease in cash and cash equivalents of discontinued operations |  | 0 us-gaap_NetCashProvidedByUsedInDiscontinuedOperations / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 0 us-gaap_NetCashProvidedByUsedInDiscontinuedOperations / dei_LegalEntityAxis = us-gaap_SubsidiariesMember
Cash and cash equivalents, beginning of period | 4,027,000 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 1,528,000 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 4,920,000 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_SubsidiariesMember
Cash and cash equivalents, end of period | 1,033,000 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 4,027,000 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 1,528,000 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_SubsidiariesMember
Other RenaissanceRe Holdings Ltd. Subsidiaries And Eliminations (Non-Guarantor Subsidiaries) |  |  |
Cash flows provided by (used in) operating activities: |  |  |
Net cash provided by (used in) operating activities | 678,342,000 us-gaap_NetCashProvidedByUsedInOperatingActivities / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 841,270,000 us-gaap_NetCashProvidedByUsedInOperatingActivities / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 598,738,000 us-gaap_NetCashProvidedByUsedInOperatingActivities / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Cash flows provided by (used in) investing activities |  |  |
Proceeds from sales and maturities of fixed maturity investments trading | 7,573,813,000 us-gaap_ProceedsFromSaleAndMaturityOfTradingSecuritiesHeldforinvestment / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 7,185,513,000 us-gaap_ProceedsFromSaleAndMaturityOfTradingSecuritiesHeldforinvestment / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 7,308,030,000 us-gaap_ProceedsFromSaleAndMaturityOfTradingSecuritiesHeldforinvestment / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Purchases of fixed maturity investments trading | (7,535,868,000)us-gaap_PaymentsToAcquireTradingSecuritiesHeldforinvestment / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | (7,814,277,000)us-gaap_PaymentsToAcquireTradingSecuritiesHeldforinvestment / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | (7,769,655,000)us-gaap_PaymentsToAcquireTradingSecuritiesHeldforinvestment / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Proceeds from sales and maturities of fixed maturity investments available for sale | 7,088,000 us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 45,178,000 us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 65,168,000 us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Net (purchases) sales of equity investments trading | (33,764,000)us-gaap_ProceedsFromPaymentsForTradingSecurities / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 48,382,000 us-gaap_ProceedsFromPaymentsForTradingSecurities / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |
Net (purchases) sales of short term investments | (28,919,000)rnr_PaymentsForProceedsFromOtherShortTermInvestments / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | (277,587,000)rnr_PaymentsForProceedsFromOtherShortTermInvestments / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 159,886,000 rnr_PaymentsForProceedsFromOtherShortTermInvestments / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Net sales of other investments | 59,120,000 rnr_PaymentsForProceedsFromOtherInvestments / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 76,214,000 rnr_PaymentsForProceedsFromOtherInvestments / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 150,828,000 rnr_PaymentsForProceedsFromOtherInvestments / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Net purchases of investments in other ventures | 1,030,000 us-gaap_PaymentsToAcquireEquityMethodInvestments / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | (4,000,000)us-gaap_PaymentsToAcquireEquityMethodInvestments / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |
Net sales (purchases) of other assets | 6,000,000 us-gaap_PaymentsForProceedsFromOtherInvestingActivities / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 2,181,000 us-gaap_PaymentsForProceedsFromOtherInvestingActivities / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | (4,079,000)us-gaap_PaymentsForProceedsFromOtherInvestingActivities / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Dividends and return of capital from subsidiaries | (1,270,428,000)us-gaap_ProceedsFromContributionsFromAffiliates / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | (587,834,000)us-gaap_ProceedsFromContributionsFromAffiliates / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | (988,852,000)us-gaap_ProceedsFromContributionsFromAffiliates / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Contributions to subsidiaries | 772,081,000 us-gaap_PaymentsToAcquireInterestInSubsidiariesAndAffiliates / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 538,769,000 us-gaap_PaymentsToAcquireInterestInSubsidiariesAndAffiliates / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 416,210,000 us-gaap_PaymentsToAcquireInterestInSubsidiariesAndAffiliates / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Due (from) to subsidiary | (3,352,000)us-gaap_IncreaseDecreaseInDueToRelatedParties / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | (13,685,000)us-gaap_IncreaseDecreaseInDueToRelatedParties / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 15,118,000 us-gaap_IncreaseDecreaseInDueToRelatedParties / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Net proceeds (payments) related to sale of discontinued operations |  | 60,000,000 us-gaap_ProceedsFromDivestitureOfBusinessesAndInterestsInAffiliates / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 0 us-gaap_ProceedsFromDivestitureOfBusinessesAndInterestsInAffiliates / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Net cash provided by (used in) investing activities | (453,199,000)us-gaap_NetCashProvidedByUsedInInvestingActivities / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | (741,146,000)us-gaap_NetCashProvidedByUsedInInvestingActivities / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | (647,346,000)us-gaap_NetCashProvidedByUsedInInvestingActivities / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Cash flows provided by (used in) financing activities |  |  |
Dividends paid – RenaissanceRe common shares | 0 us-gaap_PaymentsOfDividendsCommonStock / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 0 us-gaap_PaymentsOfDividendsCommonStock / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 0 us-gaap_PaymentsOfDividendsCommonStock / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Dividends paid – preference shares | 0 us-gaap_PaymentsOfDividendsPreferredStockAndPreferenceStock / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 0 us-gaap_PaymentsOfDividendsPreferredStockAndPreferenceStock / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 0 us-gaap_PaymentsOfDividendsPreferredStockAndPreferenceStock / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
RenaissanceRe common share repurchases | 0 us-gaap_PaymentsForRepurchaseOfCommonStock / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 0 us-gaap_PaymentsForRepurchaseOfCommonStock / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 0 us-gaap_PaymentsForRepurchaseOfCommonStock / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Net repayment of debt |  | (2,436,000)us-gaap_ProceedsFromRepaymentsOfDebt / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | (1,937,000)us-gaap_ProceedsFromRepaymentsOfDebt / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Redemption of preference shares |  | 0 us-gaap_PaymentsForRepurchaseOfPreferredStockAndPreferenceStock / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 0 us-gaap_PaymentsForRepurchaseOfPreferredStockAndPreferenceStock / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Contribution of capital from parent |  | (15,684,000)us-gaap_ProceedsFromContributionsFromParent / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember |
Net third party redeemable noncontrolling interest share transactions | (111,707,000)us-gaap_PaymentsForRepurchaseOfRedeemableNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | (5,750,000)us-gaap_PaymentsForRepurchaseOfRedeemableNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 164,927,000 us-gaap_PaymentsForRepurchaseOfRedeemableNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Net cash used in financing activities | (111,707,000)us-gaap_NetCashProvidedByUsedInFinancingActivities / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | (23,870,000)us-gaap_NetCashProvidedByUsedInFinancingActivities / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 162,990,000 us-gaap_NetCashProvidedByUsedInFinancingActivities / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Effect of exchange rate changes on foreign currency cash | 9,920,000 us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 1,423,000 us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 1,692,000 us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Net increase in cash and cash equivalents | 123,356,000 us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 77,677,000 us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 116,074,000 us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Net decrease in cash and cash equivalents of discontinued operations |  | 21,213,000 us-gaap_NetCashProvidedByUsedInDiscontinuedOperations / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 13,946,000 us-gaap_NetCashProvidedByUsedInDiscontinuedOperations / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Cash and cash equivalents, beginning of period | 395,209,000 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 296,319,000 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 166,299,000 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Cash and cash equivalents, end of period | 518,565,000 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 395,209,000 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 296,319,000 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Series C Preferred Stock |  |  |
Cash flows provided by (used in) financing activities |  |  |
Redemption of preference shares | 0 us-gaap_PaymentsForRepurchaseOfPreferredStockAndPreferenceStock / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesCPreferredStockMember | (125,000,000)us-gaap_PaymentsForRepurchaseOfPreferredStockAndPreferenceStock / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesCPreferredStockMember | 0 us-gaap_PaymentsForRepurchaseOfPreferredStockAndPreferenceStock / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesCPreferredStockMember
Series C Preferred Stock | RenaissanceRe Holdings Ltd. (Parent Guarantor) |  |  |
Cash flows provided by (used in) financing activities |  |  |
Redemption of preference shares | 0 us-gaap_PaymentsForRepurchaseOfPreferredStockAndPreferenceStock / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesCPreferredStockMember | (125,000,000)us-gaap_PaymentsForRepurchaseOfPreferredStockAndPreferenceStock / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesCPreferredStockMember | 0 us-gaap_PaymentsForRepurchaseOfPreferredStockAndPreferenceStock / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesCPreferredStockMember
Series D Preferred Stock |  |  |
Cash flows provided by (used in) financing activities |  |  |
Redemption of preference shares | 0 us-gaap_PaymentsForRepurchaseOfPreferredStockAndPreferenceStock / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesDPreferredStockMember | (150,000,000)us-gaap_PaymentsForRepurchaseOfPreferredStockAndPreferenceStock / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesDPreferredStockMember | (150,000,000)us-gaap_PaymentsForRepurchaseOfPreferredStockAndPreferenceStock / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesDPreferredStockMember
Series D Preferred Stock | RenaissanceRe Holdings Ltd. (Parent Guarantor) |  |  |
Cash flows provided by (used in) financing activities |  |  |
Redemption of preference shares | 0 us-gaap_PaymentsForRepurchaseOfPreferredStockAndPreferenceStock / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesDPreferredStockMember | (150,000,000)us-gaap_PaymentsForRepurchaseOfPreferredStockAndPreferenceStock / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesDPreferredStockMember | (150,000,000)us-gaap_PaymentsForRepurchaseOfPreferredStockAndPreferenceStock / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesDPreferredStockMember
Series D Preferred Stock | RenRe North America Holdings Inc. (Subsidiary Issuer) |  |  |
Cash flows provided by (used in) financing activities |  |  |
Redemption of preference shares |  | 0 us-gaap_PaymentsForRepurchaseOfPreferredStockAndPreferenceStock / dei_LegalEntityAxis = us-gaap_SubsidiariesMember / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesDPreferredStockMember |
Series D Preferred Stock | Other RenaissanceRe Holdings Ltd. Subsidiaries And Eliminations (Non-Guarantor Subsidiaries) |  |  |
Cash flows provided by (used in) financing activities |  |  |
Redemption of preference shares |  | 0 us-gaap_PaymentsForRepurchaseOfPreferredStockAndPreferenceStock / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesDPreferredStockMember |
Series E Preferred Stock |  |  |
Cash flows provided by (used in) financing activities |  |  |
Issuance of 5.375% Series E preference shares, net of expenses | 0 us-gaap_ProceedsFromIssuanceOfPreferredStockAndPreferenceStock / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesEPreferredStockMember | 265,856,000 us-gaap_ProceedsFromIssuanceOfPreferredStockAndPreferenceStock / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesEPreferredStockMember | 0 us-gaap_ProceedsFromIssuanceOfPreferredStockAndPreferenceStock / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesEPreferredStockMember
Series E Preferred Stock | RenaissanceRe Holdings Ltd. (Parent Guarantor) |  |  |
Cash flows provided by (used in) financing activities |  |  |
Issuance of 5.375% Series E preference shares, net of expenses | 0 us-gaap_ProceedsFromIssuanceOfPreferredStockAndPreferenceStock / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesEPreferredStockMember | 265,856,000 us-gaap_ProceedsFromIssuanceOfPreferredStockAndPreferenceStock / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesEPreferredStockMember | 0 us-gaap_ProceedsFromIssuanceOfPreferredStockAndPreferenceStock / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesEPreferredStockMember
Series E Preferred Stock | RenRe North America Holdings Inc. (Subsidiary Issuer) |  |  |
Cash flows provided by (used in) financing activities |  |  |
Issuance of 5.375% Series E preference shares, net of expenses |  | 0 us-gaap_ProceedsFromIssuanceOfPreferredStockAndPreferenceStock / dei_LegalEntityAxis = us-gaap_SubsidiariesMember / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesEPreferredStockMember |
Series E Preferred Stock | Other RenaissanceRe Holdings Ltd. Subsidiaries And Eliminations (Non-Guarantor Subsidiaries) |  |  |
Cash flows provided by (used in) financing activities |  |  |
Issuance of 5.375% Series E preference shares, net of expenses |  | $ 0 us-gaap_ProceedsFromIssuanceOfPreferredStockAndPreferenceStock / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesEPreferredStockMember |

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- Definition The net amount paid (received) by the reporting entity through acquisition (sale/maturities) of short-term investments with an original maturity that is one year or less which qualify for treatment as an investing activity based on management's intention and intended by management to be liquidated, if necessary, within the current operating cycle. + References No definition available. + Details
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- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash -URI http://asc.fasb.org/extlink&oid=6506951 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash Equivalents -URI http://asc.fasb.org/extlink&oid=6507016 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 1 -Article 5 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.1) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e6676-107765 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3044-108585 + Details
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- Definition Amount of increase (decrease) in cash and cash equivalents. Cash and cash equivalents are the amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Includes effect from exchange rate changes. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3521-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 230 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6450594&loc=d3e33268-110906 + Details
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- Definition The increase (decrease) during the reporting period in the aggregate amount of obligations to be paid to the following types of related parties: a parent company and its subsidiaries; subsidiaries of a common parent; an entity and trust for the benefit of employees, such as pension and profit-sharing trusts that are managed by or under the trusteeship of the entities' management; an entity and its principal owners, management, or member of their immediate families; affiliates; or other parties with the ability to exert significant influence. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 + Details
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- Definition Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3521-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 26 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3574-108585 + Details
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- Definition Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3521-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 26 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3574-108585 + Details
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- Definition Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3521-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3536-108585 + Details
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- Definition The net cash outflow or inflow from other investing activities. This element is used when there is not a more specific and appropriate element in the taxonomy. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3095-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3098-108585 + Details
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- Definition The cash outflow to reacquire common stock during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3291-108585 + Details
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- Definition The cash outflow to reacquire preferred stock during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3291-108585 + Details
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- Definition The cash outflow during the period for redemption of redeemable noncontrolling interests. + References No definition available. + Details
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- Definition Amount of cash outflow in the form of ordinary dividends to common shareholders of the parent entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3291-108585 + Details
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- Definition Amount of cash outflow in the form of ordinary dividends to preferred shareholders of the parent entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3291-108585 + Details
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- Definition The cash outflow associated with the purchase of or advances to an equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3213-108585 + Details
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- Definition The cash outflow associated with the acquisition of or advances to an entity that is related to it but not strictly controlled (for example, an unconsolidated subsidiary, affiliate, and joint venture or equity method investment) or the acquisition of an additional interest in a subsidiary (controlled entity). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3213-108585 + Details
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- Definition The cash outflow to acquire securities classified as trading securities and held for investment purposes. Excludes payments for trading securities purchased and held principally for the purpose of selling them in the near term (thus held for only a short period of time). + References No definition available. + Details
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- Definition The cash inflow from an entity that is affiliated with the entity by means of direct or indirect ownership. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3255-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
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- Definition The cash inflow from parent as a source of financing that is recorded as additional paid in capital. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3255-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
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- Definition The cash inflow associated with the amount received from the sale of a business segment or subsidiary or sale of an entity that is related to it but not strictly controlled during the period (for example, an unconsolidated subsidiary, affiliate, joint venture or equity method investment). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3179-108585 + Details
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- Definition Proceeds from issuance of capital stock which provides for a specific dividend that is paid to the shareholders before any dividends to common stockholders and which takes precedence over common stockholders in the event of liquidation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3255-108585 + Details
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- Definition Amount of cash inflow (outflow) from sales and purchases of trading securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=6871852&loc=d3e26853-111562 + Details
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- Definition The net cash inflow or outflow in aggregate debt due to repayments and proceeds from additional borrowings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
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- Definition The cash inflow associated with the sale or maturity (principal being due) of securities not classified as either held-to-maturity securities or trading securities which are classified as available-for-sale securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=6871852&loc=d3e26853-111562 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (a),(b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3179-108585 + Details
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- Definition The cash inflow associated with the sale, maturities, repayments and calls of securities classified as trading securities and held for investment purposes. Excludes proceeds from trading securities purchased and held principally for the purpose of selling them in the near term (thus held for only a short period of time). + References No definition available. + Details
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