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v2.4.1.9

Condensed Consolidating Financial Information Provided In Connection With Outstanding Debt Of Subsidiaries (Condensed Consolidating Statement Of Operations) (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended
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Dec. 31, 2014 | Sep. 30, 2014 | Jun. 30, 2014 | Mar. 31, 2014 | Dec. 31, 2013 | Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Revenues |  |  |  |  |  |  |  |  |  |  |
Net premiums earned | $ 256,487 us-gaap_PremiumsEarnedNet | $ 258,979 us-gaap_PremiumsEarnedNet | $ 260,416 us-gaap_PremiumsEarnedNet | $ 286,534 us-gaap_PremiumsEarnedNet | $ 256,765 us-gaap_PremiumsEarnedNet | $ 294,717 us-gaap_PremiumsEarnedNet | $ 291,889 us-gaap_PremiumsEarnedNet | $ 271,255 us-gaap_PremiumsEarnedNet | $ 1,062,416 us-gaap_PremiumsEarnedNet | $ 1,114,626 us-gaap_PremiumsEarnedNet | $ 1,069,355 us-gaap_PremiumsEarnedNet
Net investment income | 25,886 us-gaap_NetInvestmentIncome | 24,941 us-gaap_NetInvestmentIncome | 34,541 us-gaap_NetInvestmentIncome | 38,948 us-gaap_NetInvestmentIncome | 78,732 us-gaap_NetInvestmentIncome | 59,931 us-gaap_NetInvestmentIncome | 26,163 us-gaap_NetInvestmentIncome | 43,202 us-gaap_NetInvestmentIncome | 124,316 us-gaap_NetInvestmentIncome | 208,028 us-gaap_NetInvestmentIncome | 165,725 us-gaap_NetInvestmentIncome
Net foreign exchange (losses) gains | (107)us-gaap_ForeignCurrencyTransactionGainLossBeforeTax | 5,036 us-gaap_ForeignCurrencyTransactionGainLossBeforeTax | 2,392 us-gaap_ForeignCurrencyTransactionGainLossBeforeTax | (1,061)us-gaap_ForeignCurrencyTransactionGainLossBeforeTax | 1,747 us-gaap_ForeignCurrencyTransactionGainLossBeforeTax | 488 us-gaap_ForeignCurrencyTransactionGainLossBeforeTax | (932)us-gaap_ForeignCurrencyTransactionGainLossBeforeTax | 614 us-gaap_ForeignCurrencyTransactionGainLossBeforeTax | 6,260 us-gaap_ForeignCurrencyTransactionGainLossBeforeTax | 1,917 us-gaap_ForeignCurrencyTransactionGainLossBeforeTax | 5,319 us-gaap_ForeignCurrencyTransactionGainLossBeforeTax
Equity in earnings of other ventures | 4,838 us-gaap_IncomeLossFromEquityMethodInvestments | 9,806 us-gaap_IncomeLossFromEquityMethodInvestments | 7,232 us-gaap_IncomeLossFromEquityMethodInvestments | 4,199 us-gaap_IncomeLossFromEquityMethodInvestments | 6,274 us-gaap_IncomeLossFromEquityMethodInvestments | 7,313 us-gaap_IncomeLossFromEquityMethodInvestments | 3,772 us-gaap_IncomeLossFromEquityMethodInvestments | 5,835 us-gaap_IncomeLossFromEquityMethodInvestments | 26,075 us-gaap_IncomeLossFromEquityMethodInvestments | 23,194 us-gaap_IncomeLossFromEquityMethodInvestments | 23,238 us-gaap_IncomeLossFromEquityMethodInvestments
Other loss | 1,219 us-gaap_OtherOperatingIncomeExpenseNet | (1,169)us-gaap_OtherOperatingIncomeExpenseNet | (535)us-gaap_OtherOperatingIncomeExpenseNet | 62 us-gaap_OtherOperatingIncomeExpenseNet | (173)us-gaap_OtherOperatingIncomeExpenseNet | 651 us-gaap_OtherOperatingIncomeExpenseNet | (1,128)us-gaap_OtherOperatingIncomeExpenseNet | (1,709)us-gaap_OtherOperatingIncomeExpenseNet | (423)us-gaap_OtherOperatingIncomeExpenseNet | (2,359)us-gaap_OtherOperatingIncomeExpenseNet | (2,120)us-gaap_OtherOperatingIncomeExpenseNet
Net realized and unrealized gains on investments | 30,475 us-gaap_GainLossOnInvestments | (31,097)us-gaap_GainLossOnInvestments | 27,128 us-gaap_GainLossOnInvestments | 14,927 us-gaap_GainLossOnInvestments | 61,864 us-gaap_GainLossOnInvestments | 28,472 us-gaap_GainLossOnInvestments | (69,529)us-gaap_GainLossOnInvestments | 14,269 us-gaap_GainLossOnInvestments | 41,433 us-gaap_GainLossOnInvestments | 35,076 us-gaap_GainLossOnInvestments | 163,121 us-gaap_GainLossOnInvestments
Net other-than-temporary impairments |  |  |  |  |  |  |  |  | 0 us-gaap_OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNetAvailableforsaleSecurities | 0 us-gaap_OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNetAvailableforsaleSecurities | (343)us-gaap_OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNetAvailableforsaleSecurities
Total revenues | 318,798 us-gaap_Revenues | 266,496 us-gaap_Revenues | 331,174 us-gaap_Revenues | 343,609 us-gaap_Revenues | 405,209 us-gaap_Revenues | 391,572 us-gaap_Revenues | 250,235 us-gaap_Revenues | 333,466 us-gaap_Revenues | 1,260,077 us-gaap_Revenues | 1,380,482 us-gaap_Revenues | 1,424,295 us-gaap_Revenues
Expenses |  |  |  |  |  |  |  |  |  |  |
Net claims and claim expenses incurred | (12,003)us-gaap_PolicyholderBenefitsAndClaimsIncurredNet | 69,647 us-gaap_PolicyholderBenefitsAndClaimsIncurredNet | 81,388 us-gaap_PolicyholderBenefitsAndClaimsIncurredNet | 58,915 us-gaap_PolicyholderBenefitsAndClaimsIncurredNet | (20,854)us-gaap_PolicyholderBenefitsAndClaimsIncurredNet | 60,928 us-gaap_PolicyholderBenefitsAndClaimsIncurredNet | 103,962 us-gaap_PolicyholderBenefitsAndClaimsIncurredNet | 27,251 us-gaap_PolicyholderBenefitsAndClaimsIncurredNet | 197,947 us-gaap_PolicyholderBenefitsAndClaimsIncurredNet | 171,287 us-gaap_PolicyholderBenefitsAndClaimsIncurredNet | 325,211 us-gaap_PolicyholderBenefitsAndClaimsIncurredNet
Acquisition expenses | 39,749 us-gaap_DeferredPolicyAcquisitionCostAmortizationExpense | 37,550 us-gaap_DeferredPolicyAcquisitionCostAmortizationExpense | 33,477 us-gaap_DeferredPolicyAcquisitionCostAmortizationExpense | 33,700 us-gaap_DeferredPolicyAcquisitionCostAmortizationExpense | 31,026 us-gaap_DeferredPolicyAcquisitionCostAmortizationExpense | 37,699 us-gaap_DeferredPolicyAcquisitionCostAmortizationExpense | 31,767 us-gaap_DeferredPolicyAcquisitionCostAmortizationExpense | 25,009 us-gaap_DeferredPolicyAcquisitionCostAmortizationExpense | 144,476 us-gaap_DeferredPolicyAcquisitionCostAmortizationExpense | 125,501 us-gaap_DeferredPolicyAcquisitionCostAmortizationExpense | 113,542 us-gaap_DeferredPolicyAcquisitionCostAmortizationExpense
Operational expenses | 55,202 us-gaap_OperatingExpenses | 46,972 us-gaap_OperatingExpenses | 45,841 us-gaap_OperatingExpenses | 42,624 us-gaap_OperatingExpenses | 57,658 us-gaap_OperatingExpenses | 44,672 us-gaap_OperatingExpenses | 42,789 us-gaap_OperatingExpenses | 45,986 us-gaap_OperatingExpenses | 190,639 us-gaap_OperatingExpenses | 191,105 us-gaap_OperatingExpenses | 179,151 us-gaap_OperatingExpenses
Corporate expenses | 10,583 us-gaap_GeneralAndAdministrativeExpense | 3,905 us-gaap_GeneralAndAdministrativeExpense | 3,954 us-gaap_GeneralAndAdministrativeExpense | 4,545 us-gaap_GeneralAndAdministrativeExpense | 3,304 us-gaap_GeneralAndAdministrativeExpense | 4,307 us-gaap_GeneralAndAdministrativeExpense | 21,529 us-gaap_GeneralAndAdministrativeExpense | 4,482 us-gaap_GeneralAndAdministrativeExpense | 22,987 us-gaap_GeneralAndAdministrativeExpense | 33,622 us-gaap_GeneralAndAdministrativeExpense | 16,456 us-gaap_GeneralAndAdministrativeExpense
Interest expense | 4,289 us-gaap_InterestExpense | 4,290 us-gaap_InterestExpense | 4,292 us-gaap_InterestExpense | 4,293 us-gaap_InterestExpense | 4,297 us-gaap_InterestExpense | 4,298 us-gaap_InterestExpense | 4,300 us-gaap_InterestExpense | 5,034 us-gaap_InterestExpense | 17,164 us-gaap_InterestExpense | 17,929 us-gaap_InterestExpense | 23,097 us-gaap_InterestExpense
Total expenses | 97,820 us-gaap_BenefitsLossesAndExpenses | 162,364 us-gaap_BenefitsLossesAndExpenses | 168,952 us-gaap_BenefitsLossesAndExpenses | 144,077 us-gaap_BenefitsLossesAndExpenses | 75,431 us-gaap_BenefitsLossesAndExpenses | 151,904 us-gaap_BenefitsLossesAndExpenses | 204,347 us-gaap_BenefitsLossesAndExpenses | 107,762 us-gaap_BenefitsLossesAndExpenses | 573,213 us-gaap_BenefitsLossesAndExpenses | 539,444 us-gaap_BenefitsLossesAndExpenses | 657,457 us-gaap_BenefitsLossesAndExpenses
Income (loss) before equity in net income (loss) of subsidiaries and taxes |  |  |  |  |  |  |  |  | 686,864 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments | 841,038 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments | 766,838 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
Equity in net income (loss) of subsidiaries |  |  |  |  |  |  |  |  | 0 us-gaap_IncomeLossFromSubsidiariesNetOfTax | 0 us-gaap_IncomeLossFromSubsidiariesNetOfTax | 0 us-gaap_IncomeLossFromSubsidiariesNetOfTax
Income from continuing operations before taxes | 220,978 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest | 104,132 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest | 162,222 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest | 199,532 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest | 329,778 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest | 239,668 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest | 45,888 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest | 225,704 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest | 686,864 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest | 841,038 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest | 766,838 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
Income tax (expense) benefit | (401)us-gaap_IncomeTaxExpenseBenefit | (245)us-gaap_IncomeTaxExpenseBenefit | 204 us-gaap_IncomeTaxExpenseBenefit | (166)us-gaap_IncomeTaxExpenseBenefit | (1,336)us-gaap_IncomeTaxExpenseBenefit | (223)us-gaap_IncomeTaxExpenseBenefit | (11)us-gaap_IncomeTaxExpenseBenefit | (122)us-gaap_IncomeTaxExpenseBenefit | (608)us-gaap_IncomeTaxExpenseBenefit | (1,692)us-gaap_IncomeTaxExpenseBenefit | (1,413)us-gaap_IncomeTaxExpenseBenefit
Income from continuing operations | 220,577 us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest | 103,887 us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest | 162,426 us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest | 199,366 us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest | 328,442 us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest | 239,445 us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest | 45,877 us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest | 225,582 us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest | 686,256 us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest | 839,346 us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest | 765,425 us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
Income from discontinued operations | 0 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax | 0 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax | 0 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax | 0 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax | 0 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax | (9,779)us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax | 2,427 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax | 9,774 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax | 0 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax | 2,422 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax | (16,476)us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax
Net income | 220,577 us-gaap_ProfitLoss | 103,887 us-gaap_ProfitLoss | 162,426 us-gaap_ProfitLoss | 199,366 us-gaap_ProfitLoss | 328,442 us-gaap_ProfitLoss | 229,666 us-gaap_ProfitLoss | 48,304 us-gaap_ProfitLoss | 235,356 us-gaap_ProfitLoss | 686,256 us-gaap_ProfitLoss | 841,768 us-gaap_ProfitLoss | 748,949 us-gaap_ProfitLoss
Net income attributable to noncontrolling interests | (44,215)us-gaap_NetIncomeLossAttributableToNoncontrollingInterest | (30,477)us-gaap_NetIncomeLossAttributableToNoncontrollingInterest | (36,078)us-gaap_NetIncomeLossAttributableToNoncontrollingInterest | (42,768)us-gaap_NetIncomeLossAttributableToNoncontrollingInterest | (54,191)us-gaap_NetIncomeLossAttributableToNoncontrollingInterest | (44,331)us-gaap_NetIncomeLossAttributableToNoncontrollingInterest | (14,015)us-gaap_NetIncomeLossAttributableToNoncontrollingInterest | (38,607)us-gaap_NetIncomeLossAttributableToNoncontrollingInterest | (153,538)us-gaap_NetIncomeLossAttributableToNoncontrollingInterest | (151,144)us-gaap_NetIncomeLossAttributableToNoncontrollingInterest | (148,040)us-gaap_NetIncomeLossAttributableToNoncontrollingInterest
Net income attributable to RenaissanceRe | 176,362 us-gaap_NetIncomeLoss | 73,410 us-gaap_NetIncomeLoss | 126,348 us-gaap_NetIncomeLoss | 156,598 us-gaap_NetIncomeLoss | 274,251 us-gaap_NetIncomeLoss | 185,335 us-gaap_NetIncomeLoss | 34,289 us-gaap_NetIncomeLoss | 196,749 us-gaap_NetIncomeLoss | 532,718 us-gaap_NetIncomeLoss | 690,624 us-gaap_NetIncomeLoss | 600,909 us-gaap_NetIncomeLoss
Dividends on preference shares | (5,595)us-gaap_DividendsPreferredStock | (5,595)us-gaap_DividendsPreferredStock | (5,596)us-gaap_DividendsPreferredStock | (5,595)us-gaap_DividendsPreferredStock | (5,595)us-gaap_DividendsPreferredStock | (5,595)us-gaap_DividendsPreferredStock | (7,483)us-gaap_DividendsPreferredStock | (6,275)us-gaap_DividendsPreferredStock | (22,381)us-gaap_DividendsPreferredStock | (24,948)us-gaap_DividendsPreferredStock | (34,895)us-gaap_DividendsPreferredStock
Net income available to RenaissanceRe common shareholders | 170,767 us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic | 67,815 us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic | 120,752 us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic | 151,003 us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic | 268,656 us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic | 179,740 us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic | 26,806 us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic | 190,474 us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic | 510,337 us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic | 665,676 us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic | 566,014 us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic
RenaissanceRe Holdings Ltd. (Parent Guarantor) |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  |
Net premiums earned |  |  |  |  |  |  |  |  | 0 us-gaap_PremiumsEarnedNet / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_PremiumsEarnedNet / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_PremiumsEarnedNet / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Net investment income |  |  |  |  |  |  |  |  | 2,706 us-gaap_NetInvestmentIncome / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 4,213 us-gaap_NetInvestmentIncome / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 14,195 us-gaap_NetInvestmentIncome / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Net foreign exchange (losses) gains |  |  |  |  |  |  |  |  | (13)us-gaap_ForeignCurrencyTransactionGainLossBeforeTax / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (7)us-gaap_ForeignCurrencyTransactionGainLossBeforeTax / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 33 us-gaap_ForeignCurrencyTransactionGainLossBeforeTax / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Equity in earnings of other ventures |  |  |  |  |  |  |  |  | 0 us-gaap_IncomeLossFromEquityMethodInvestments / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_IncomeLossFromEquityMethodInvestments / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_IncomeLossFromEquityMethodInvestments / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Other loss |  |  |  |  |  |  |  |  | 0 us-gaap_OtherOperatingIncomeExpenseNet / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 106 us-gaap_OtherOperatingIncomeExpenseNet / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 2,822 us-gaap_OtherOperatingIncomeExpenseNet / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Net realized and unrealized gains on investments |  |  |  |  |  |  |  |  | 83 us-gaap_GainLossOnInvestments / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (483)us-gaap_GainLossOnInvestments / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 14,862 us-gaap_GainLossOnInvestments / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Net other-than-temporary impairments |  |  |  |  |  |  |  |  |  |  | 0 us-gaap_OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNetAvailableforsaleSecurities / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Total revenues |  |  |  |  |  |  |  |  | 2,776 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 3,829 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 31,912 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Expenses |  |  |  |  |  |  |  |  |  |  |
Net claims and claim expenses incurred |  |  |  |  |  |  |  |  | 0 us-gaap_PolicyholderBenefitsAndClaimsIncurredNet / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_PolicyholderBenefitsAndClaimsIncurredNet / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_PolicyholderBenefitsAndClaimsIncurredNet / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Acquisition expenses |  |  |  |  |  |  |  |  | 0 us-gaap_DeferredPolicyAcquisitionCostAmortizationExpense / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_DeferredPolicyAcquisitionCostAmortizationExpense / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_DeferredPolicyAcquisitionCostAmortizationExpense / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Operational expenses |  |  |  |  |  |  |  |  | (4,890)us-gaap_OperatingExpenses / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (4,962)us-gaap_OperatingExpenses / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (5,103)us-gaap_OperatingExpenses / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Corporate expenses |  |  |  |  |  |  |  |  | 20,787 us-gaap_GeneralAndAdministrativeExpense / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 31,264 us-gaap_GeneralAndAdministrativeExpense / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 14,282 us-gaap_GeneralAndAdministrativeExpense / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Interest expense |  |  |  |  |  |  |  |  | 0 us-gaap_InterestExpense / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 734 us-gaap_InterestExpense / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 5,875 us-gaap_InterestExpense / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Total expenses |  |  |  |  |  |  |  |  | 15,897 us-gaap_BenefitsLossesAndExpenses / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 27,036 us-gaap_BenefitsLossesAndExpenses / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 15,054 us-gaap_BenefitsLossesAndExpenses / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Income (loss) before equity in net income (loss) of subsidiaries and taxes |  |  |  |  |  |  |  |  | (13,121)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (23,207)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 16,858 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Equity in net income (loss) of subsidiaries |  |  |  |  |  |  |  |  | 545,839 us-gaap_IncomeLossFromSubsidiariesNetOfTax / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 713,831 us-gaap_IncomeLossFromSubsidiariesNetOfTax / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 584,051 us-gaap_IncomeLossFromSubsidiariesNetOfTax / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Income from continuing operations before taxes |  |  |  |  |  |  |  |  | 532,718 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 690,624 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 600,909 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Income tax (expense) benefit |  |  |  |  |  |  |  |  | 0 us-gaap_IncomeTaxExpenseBenefit / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_IncomeTaxExpenseBenefit / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_IncomeTaxExpenseBenefit / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Income from continuing operations |  |  |  |  |  |  |  |  |  | 690,624 us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 600,909 us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Income from discontinued operations |  |  |  |  |  |  |  |  |  | 0 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Net income |  |  |  |  |  |  |  |  | 532,718 us-gaap_ProfitLoss / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 690,624 us-gaap_ProfitLoss / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 600,909 us-gaap_ProfitLoss / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Net income attributable to noncontrolling interests |  |  |  |  |  |  |  |  | 0 us-gaap_NetIncomeLossAttributableToNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_NetIncomeLossAttributableToNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 0 us-gaap_NetIncomeLossAttributableToNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Net income attributable to RenaissanceRe |  |  |  |  |  |  |  |  | 532,718 us-gaap_NetIncomeLoss / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 690,624 us-gaap_NetIncomeLoss / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 600,909 us-gaap_NetIncomeLoss / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Dividends on preference shares |  |  |  |  |  |  |  |  | (22,381)us-gaap_DividendsPreferredStock / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (24,948)us-gaap_DividendsPreferredStock / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | (34,895)us-gaap_DividendsPreferredStock / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Net income available to RenaissanceRe common shareholders |  |  |  |  |  |  |  |  | 510,337 us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 665,676 us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 566,014 us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
RenRe North America Holdings Inc. (Subsidiary Issuer) |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  |
Net premiums earned |  |  |  |  |  |  |  |  | 0 us-gaap_PremiumsEarnedNet / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 0 us-gaap_PremiumsEarnedNet / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 0 us-gaap_PremiumsEarnedNet / dei_LegalEntityAxis = us-gaap_SubsidiariesMember
Net investment income |  |  |  |  |  |  |  |  | 1,765 us-gaap_NetInvestmentIncome / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 488 us-gaap_NetInvestmentIncome / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 619 us-gaap_NetInvestmentIncome / dei_LegalEntityAxis = us-gaap_SubsidiariesMember
Net foreign exchange (losses) gains |  |  |  |  |  |  |  |  | 0 us-gaap_ForeignCurrencyTransactionGainLossBeforeTax / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | (2)us-gaap_ForeignCurrencyTransactionGainLossBeforeTax / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 0 us-gaap_ForeignCurrencyTransactionGainLossBeforeTax / dei_LegalEntityAxis = us-gaap_SubsidiariesMember
Equity in earnings of other ventures |  |  |  |  |  |  |  |  | 0 us-gaap_IncomeLossFromEquityMethodInvestments / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 0 us-gaap_IncomeLossFromEquityMethodInvestments / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 0 us-gaap_IncomeLossFromEquityMethodInvestments / dei_LegalEntityAxis = us-gaap_SubsidiariesMember
Other loss |  |  |  |  |  |  |  |  | (7)us-gaap_OtherOperatingIncomeExpenseNet / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 125 us-gaap_OtherOperatingIncomeExpenseNet / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 0 us-gaap_OtherOperatingIncomeExpenseNet / dei_LegalEntityAxis = us-gaap_SubsidiariesMember
Net realized and unrealized gains on investments |  |  |  |  |  |  |  |  | 9,069 us-gaap_GainLossOnInvestments / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 1,196 us-gaap_GainLossOnInvestments / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 1,556 us-gaap_GainLossOnInvestments / dei_LegalEntityAxis = us-gaap_SubsidiariesMember
Net other-than-temporary impairments |  |  |  |  |  |  |  |  |  |  | 0 us-gaap_OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNetAvailableforsaleSecurities / dei_LegalEntityAxis = us-gaap_SubsidiariesMember
Total revenues |  |  |  |  |  |  |  |  | 10,827 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 1,807 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 2,175 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_SubsidiariesMember
Expenses |  |  |  |  |  |  |  |  |  |  |
Net claims and claim expenses incurred |  |  |  |  |  |  |  |  | 0 us-gaap_PolicyholderBenefitsAndClaimsIncurredNet / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 0 us-gaap_PolicyholderBenefitsAndClaimsIncurredNet / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 0 us-gaap_PolicyholderBenefitsAndClaimsIncurredNet / dei_LegalEntityAxis = us-gaap_SubsidiariesMember
Acquisition expenses |  |  |  |  |  |  |  |  | 0 us-gaap_DeferredPolicyAcquisitionCostAmortizationExpense / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 0 us-gaap_DeferredPolicyAcquisitionCostAmortizationExpense / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 0 us-gaap_DeferredPolicyAcquisitionCostAmortizationExpense / dei_LegalEntityAxis = us-gaap_SubsidiariesMember
Operational expenses |  |  |  |  |  |  |  |  | 7,004 us-gaap_OperatingExpenses / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 7,566 us-gaap_OperatingExpenses / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 7,013 us-gaap_OperatingExpenses / dei_LegalEntityAxis = us-gaap_SubsidiariesMember
Corporate expenses |  |  |  |  |  |  |  |  | 238 us-gaap_GeneralAndAdministrativeExpense / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 338 us-gaap_GeneralAndAdministrativeExpense / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 273 us-gaap_GeneralAndAdministrativeExpense / dei_LegalEntityAxis = us-gaap_SubsidiariesMember
Interest expense |  |  |  |  |  |  |  |  | 14,467 us-gaap_InterestExpense / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 14,467 us-gaap_InterestExpense / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 14,467 us-gaap_InterestExpense / dei_LegalEntityAxis = us-gaap_SubsidiariesMember
Total expenses |  |  |  |  |  |  |  |  | 21,709 us-gaap_BenefitsLossesAndExpenses / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 22,371 us-gaap_BenefitsLossesAndExpenses / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 21,753 us-gaap_BenefitsLossesAndExpenses / dei_LegalEntityAxis = us-gaap_SubsidiariesMember
Income (loss) before equity in net income (loss) of subsidiaries and taxes |  |  |  |  |  |  |  |  | (10,882)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | (20,564)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | (19,578)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments / dei_LegalEntityAxis = us-gaap_SubsidiariesMember
Equity in net income (loss) of subsidiaries |  |  |  |  |  |  |  |  | (4,343)us-gaap_IncomeLossFromSubsidiariesNetOfTax / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 2,142 us-gaap_IncomeLossFromSubsidiariesNetOfTax / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 1,860 us-gaap_IncomeLossFromSubsidiariesNetOfTax / dei_LegalEntityAxis = us-gaap_SubsidiariesMember
Income from continuing operations before taxes |  |  |  |  |  |  |  |  | (15,225)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | (18,422)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | (17,718)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_SubsidiariesMember
Income tax (expense) benefit |  |  |  |  |  |  |  |  | 4,064 us-gaap_IncomeTaxExpenseBenefit / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | (1,558)us-gaap_IncomeTaxExpenseBenefit / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | (499)us-gaap_IncomeTaxExpenseBenefit / dei_LegalEntityAxis = us-gaap_SubsidiariesMember
Income from continuing operations |  |  |  |  |  |  |  |  |  | (19,980)us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | (18,217)us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_SubsidiariesMember
Income from discontinued operations |  |  |  |  |  |  |  |  |  | 2,422 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | (16,476)us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax / dei_LegalEntityAxis = us-gaap_SubsidiariesMember
Net income |  |  |  |  |  |  |  |  | (11,161)us-gaap_ProfitLoss / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | (17,558)us-gaap_ProfitLoss / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | (34,693)us-gaap_ProfitLoss / dei_LegalEntityAxis = us-gaap_SubsidiariesMember
Net income attributable to noncontrolling interests |  |  |  |  |  |  |  |  | 0 us-gaap_NetIncomeLossAttributableToNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 0 us-gaap_NetIncomeLossAttributableToNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 0 us-gaap_NetIncomeLossAttributableToNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_SubsidiariesMember
Net income attributable to RenaissanceRe |  |  |  |  |  |  |  |  | (11,161)us-gaap_NetIncomeLoss / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | (17,558)us-gaap_NetIncomeLoss / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | (34,693)us-gaap_NetIncomeLoss / dei_LegalEntityAxis = us-gaap_SubsidiariesMember
Dividends on preference shares |  |  |  |  |  |  |  |  | 0 us-gaap_DividendsPreferredStock / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 0 us-gaap_DividendsPreferredStock / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | 0 us-gaap_DividendsPreferredStock / dei_LegalEntityAxis = us-gaap_SubsidiariesMember
Net income available to RenaissanceRe common shareholders |  |  |  |  |  |  |  |  | (11,161)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | (17,558)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic / dei_LegalEntityAxis = us-gaap_SubsidiariesMember | (34,693)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic / dei_LegalEntityAxis = us-gaap_SubsidiariesMember
Other RenaissanceRe Holdings Ltd. Subsidiaries And Eliminations (Non-Guarantor Subsidiaries) |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  |
Net premiums earned |  |  |  |  |  |  |  |  | 1,062,416 us-gaap_PremiumsEarnedNet / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 1,114,626 us-gaap_PremiumsEarnedNet / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 1,069,355 us-gaap_PremiumsEarnedNet / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Net investment income |  |  |  |  |  |  |  |  | 123,582 us-gaap_NetInvestmentIncome / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 209,105 us-gaap_NetInvestmentIncome / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 150,911 us-gaap_NetInvestmentIncome / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Net foreign exchange (losses) gains |  |  |  |  |  |  |  |  | 6,273 us-gaap_ForeignCurrencyTransactionGainLossBeforeTax / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 1,926 us-gaap_ForeignCurrencyTransactionGainLossBeforeTax / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 5,286 us-gaap_ForeignCurrencyTransactionGainLossBeforeTax / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Equity in earnings of other ventures |  |  |  |  |  |  |  |  | 26,075 us-gaap_IncomeLossFromEquityMethodInvestments / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 23,194 us-gaap_IncomeLossFromEquityMethodInvestments / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 23,238 us-gaap_IncomeLossFromEquityMethodInvestments / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Other loss |  |  |  |  |  |  |  |  | (416)us-gaap_OtherOperatingIncomeExpenseNet / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | (2,590)us-gaap_OtherOperatingIncomeExpenseNet / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | (4,942)us-gaap_OtherOperatingIncomeExpenseNet / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Net realized and unrealized gains on investments |  |  |  |  |  |  |  |  | 32,281 us-gaap_GainLossOnInvestments / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 34,363 us-gaap_GainLossOnInvestments / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 146,703 us-gaap_GainLossOnInvestments / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Net other-than-temporary impairments |  |  |  |  |  |  |  |  |  |  | (343)us-gaap_OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNetAvailableforsaleSecurities / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Total revenues |  |  |  |  |  |  |  |  | 1,250,211 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 1,380,624 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 1,390,208 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Expenses |  |  |  |  |  |  |  |  |  |  |
Net claims and claim expenses incurred |  |  |  |  |  |  |  |  | 197,947 us-gaap_PolicyholderBenefitsAndClaimsIncurredNet / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 171,287 us-gaap_PolicyholderBenefitsAndClaimsIncurredNet / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 325,211 us-gaap_PolicyholderBenefitsAndClaimsIncurredNet / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Acquisition expenses |  |  |  |  |  |  |  |  | 144,476 us-gaap_DeferredPolicyAcquisitionCostAmortizationExpense / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 125,501 us-gaap_DeferredPolicyAcquisitionCostAmortizationExpense / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 113,542 us-gaap_DeferredPolicyAcquisitionCostAmortizationExpense / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Operational expenses |  |  |  |  |  |  |  |  | 188,857 us-gaap_OperatingExpenses / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 189,117 us-gaap_OperatingExpenses / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 177,241 us-gaap_OperatingExpenses / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Corporate expenses |  |  |  |  |  |  |  |  | 1,962 us-gaap_GeneralAndAdministrativeExpense / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 2,020 us-gaap_GeneralAndAdministrativeExpense / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 1,901 us-gaap_GeneralAndAdministrativeExpense / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Interest expense |  |  |  |  |  |  |  |  | 2,697 us-gaap_InterestExpense / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 2,728 us-gaap_InterestExpense / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 2,755 us-gaap_InterestExpense / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Total expenses |  |  |  |  |  |  |  |  | 535,939 us-gaap_BenefitsLossesAndExpenses / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 490,653 us-gaap_BenefitsLossesAndExpenses / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 620,650 us-gaap_BenefitsLossesAndExpenses / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Income (loss) before equity in net income (loss) of subsidiaries and taxes |  |  |  |  |  |  |  |  | 714,272 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 889,971 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 769,558 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Equity in net income (loss) of subsidiaries |  |  |  |  |  |  |  |  | 0 us-gaap_IncomeLossFromSubsidiariesNetOfTax / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 0 us-gaap_IncomeLossFromSubsidiariesNetOfTax / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 0 us-gaap_IncomeLossFromSubsidiariesNetOfTax / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Income from continuing operations before taxes |  |  |  |  |  |  |  |  | 714,272 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 889,971 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 769,558 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Income tax (expense) benefit |  |  |  |  |  |  |  |  | (4,672)us-gaap_IncomeTaxExpenseBenefit / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | (134)us-gaap_IncomeTaxExpenseBenefit / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | (914)us-gaap_IncomeTaxExpenseBenefit / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Income from continuing operations |  |  |  |  |  |  |  |  |  | 889,837 us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 768,644 us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Income from discontinued operations |  |  |  |  |  |  |  |  |  | 0 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 0 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Net income |  |  |  |  |  |  |  |  | 709,600 us-gaap_ProfitLoss / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 889,837 us-gaap_ProfitLoss / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 768,644 us-gaap_ProfitLoss / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Net income attributable to noncontrolling interests |  |  |  |  |  |  |  |  | (153,538)us-gaap_NetIncomeLossAttributableToNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | (151,144)us-gaap_NetIncomeLossAttributableToNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | (148,040)us-gaap_NetIncomeLossAttributableToNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Net income attributable to RenaissanceRe |  |  |  |  |  |  |  |  | 556,062 us-gaap_NetIncomeLoss / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 738,693 us-gaap_NetIncomeLoss / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 620,604 us-gaap_NetIncomeLoss / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Dividends on preference shares |  |  |  |  |  |  |  |  | 0 us-gaap_DividendsPreferredStock / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 0 us-gaap_DividendsPreferredStock / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 0 us-gaap_DividendsPreferredStock / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Net income available to RenaissanceRe common shareholders |  |  |  |  |  |  |  |  | 556,062 us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 738,693 us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember | 620,604 us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic / dei_LegalEntityAxis = us-gaap_NonGuarantorSubsidiariesMember
Consolidating Adjustments |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  |
Net premiums earned |  |  |  |  |  |  |  |  | 0 us-gaap_PremiumsEarnedNet / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_PremiumsEarnedNet / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_PremiumsEarnedNet / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember
Net investment income |  |  |  |  |  |  |  |  | (3,737)us-gaap_NetInvestmentIncome / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (5,778)us-gaap_NetInvestmentIncome / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_NetInvestmentIncome / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember
Net foreign exchange (losses) gains |  |  |  |  |  |  |  |  | 0 us-gaap_ForeignCurrencyTransactionGainLossBeforeTax / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_ForeignCurrencyTransactionGainLossBeforeTax / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_ForeignCurrencyTransactionGainLossBeforeTax / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember
Equity in earnings of other ventures |  |  |  |  |  |  |  |  | 0 us-gaap_IncomeLossFromEquityMethodInvestments / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_IncomeLossFromEquityMethodInvestments / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_IncomeLossFromEquityMethodInvestments / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember
Other loss |  |  |  |  |  |  |  |  | 0 us-gaap_OtherOperatingIncomeExpenseNet / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_OtherOperatingIncomeExpenseNet / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_OtherOperatingIncomeExpenseNet / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember
Net realized and unrealized gains on investments |  |  |  |  |  |  |  |  | 0 us-gaap_GainLossOnInvestments / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_GainLossOnInvestments / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_GainLossOnInvestments / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember
Net other-than-temporary impairments |  |  |  |  |  |  |  |  |  |  | 0 us-gaap_OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNetAvailableforsaleSecurities / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember
Total revenues |  |  |  |  |  |  |  |  | (3,737)us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (5,778)us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_Revenues / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember
Expenses |  |  |  |  |  |  |  |  |  |  |
Net claims and claim expenses incurred |  |  |  |  |  |  |  |  | 0 us-gaap_PolicyholderBenefitsAndClaimsIncurredNet / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_PolicyholderBenefitsAndClaimsIncurredNet / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_PolicyholderBenefitsAndClaimsIncurredNet / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember
Acquisition expenses |  |  |  |  |  |  |  |  | 0 us-gaap_DeferredPolicyAcquisitionCostAmortizationExpense / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_DeferredPolicyAcquisitionCostAmortizationExpense / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_DeferredPolicyAcquisitionCostAmortizationExpense / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember
Operational expenses |  |  |  |  |  |  |  |  | (332)us-gaap_OperatingExpenses / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (616)us-gaap_OperatingExpenses / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_OperatingExpenses / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember
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Equity in net income (loss) of subsidiaries |  |  |  |  |  |  |  |  | (541,496)us-gaap_IncomeLossFromSubsidiariesNetOfTax / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (715,973)us-gaap_IncomeLossFromSubsidiariesNetOfTax / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (585,911)us-gaap_IncomeLossFromSubsidiariesNetOfTax / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember
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Income from continuing operations |  |  |  |  |  |  |  |  |  | (721,135)us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (585,911)us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember
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Net income |  |  |  |  |  |  |  |  | (544,901)us-gaap_ProfitLoss / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (721,135)us-gaap_ProfitLoss / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (585,911)us-gaap_ProfitLoss / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember
Net income attributable to noncontrolling interests |  |  |  |  |  |  |  |  | 0 us-gaap_NetIncomeLossAttributableToNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_NetIncomeLossAttributableToNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_NetIncomeLossAttributableToNoncontrollingInterest / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember
Net income attributable to RenaissanceRe |  |  |  |  |  |  |  |  | (544,901)us-gaap_NetIncomeLoss / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (721,135)us-gaap_NetIncomeLoss / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | (585,911)us-gaap_NetIncomeLoss / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember
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Net income available to RenaissanceRe common shareholders |  |  |  |  |  |  |  |  | $ (544,901)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | $ (721,135)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember | $ (585,911)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic / dei_LegalEntityAxis = us-gaap_ConsolidationEliminationsMember

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- Definition The total amount of expense recognized during the period for future policy benefits, claims and claims adjustment costs, and for selling, general and administrative costs. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04.5,6,7) -URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 5, 6, 7 -Article 7 + Details
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- Definition Amount of expense related to deferred policy acquisition costs. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 16 -Article 12 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04.7(a)) -URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 7 -Article 7 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 18 -Article 12 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=35755530&loc=d3e11264-158415 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 30 -Section 35 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=28247317&loc=d3e10157-158409 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 20 -Section 45 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=6480726&loc=d3e6691-158385 + Details
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- Definition Amount of paid and unpaid preferred stock dividends declared with the form of settlement in cash, stock and payment-in-kind (PIK). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 405 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6957935&loc=d3e64057-112817 + Details
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- Definition Amount before tax of foreign currency transaction realized and unrealized gain (loss) recognized in the income statement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6450189&loc=d3e30690-110894 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6450222&loc=d3e30840-110895 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 20 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6450189&loc=d3e30700-110894 + Details
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