XML 137 R95.htm IDEA: XBRL DOCUMENT v2.4.1.9
Related Party Transactions and Major Customers (Details) (USD $)
3 Months Ended 12 Months Ended
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
Related Party Transaction [Line Items]                      
Gross premiums written $ 132,780,000us-gaap_PremiumsWrittenGross $ 200,992,000us-gaap_PremiumsWrittenGross $ 511,540,000us-gaap_PremiumsWrittenGross $ 705,260,000us-gaap_PremiumsWrittenGross $ 84,122,000us-gaap_PremiumsWrittenGross $ 182,649,000us-gaap_PremiumsWrittenGross $ 703,223,000us-gaap_PremiumsWrittenGross $ 635,418,000us-gaap_PremiumsWrittenGross $ 1,550,572,000us-gaap_PremiumsWrittenGross $ 1,605,412,000us-gaap_PremiumsWrittenGross $ 1,551,591,000us-gaap_PremiumsWrittenGross
Gross premiums earned                 1,450,047,000us-gaap_AssumedPremiumsEarned 1,482,511,000us-gaap_AssumedPremiumsEarned 1,465,701,000us-gaap_AssumedPremiumsEarned
Acquisition expenses 39,749,000us-gaap_DeferredPolicyAcquisitionCostAmortizationExpense 37,550,000us-gaap_DeferredPolicyAcquisitionCostAmortizationExpense 33,477,000us-gaap_DeferredPolicyAcquisitionCostAmortizationExpense 33,700,000us-gaap_DeferredPolicyAcquisitionCostAmortizationExpense 31,026,000us-gaap_DeferredPolicyAcquisitionCostAmortizationExpense 37,699,000us-gaap_DeferredPolicyAcquisitionCostAmortizationExpense 31,767,000us-gaap_DeferredPolicyAcquisitionCostAmortizationExpense 25,009,000us-gaap_DeferredPolicyAcquisitionCostAmortizationExpense 144,476,000us-gaap_DeferredPolicyAcquisitionCostAmortizationExpense 125,501,000us-gaap_DeferredPolicyAcquisitionCostAmortizationExpense 113,542,000us-gaap_DeferredPolicyAcquisitionCostAmortizationExpense
Net reinsurance costs and recoveries                 (30,634,000)us-gaap_ReinsuranceCostsAndRecoveriesNet (13,852,000)us-gaap_ReinsuranceCostsAndRecoveriesNet (78,280,000)us-gaap_ReinsuranceCostsAndRecoveriesNet
Reserve for claims and claim expenses 1,412,510,000us-gaap_LiabilityForClaimsAndClaimsAdjustmentExpense       1,563,730,000us-gaap_LiabilityForClaimsAndClaimsAdjustmentExpense       1,412,510,000us-gaap_LiabilityForClaimsAndClaimsAdjustmentExpense 1,563,730,000us-gaap_LiabilityForClaimsAndClaimsAdjustmentExpense 1,879,377,000us-gaap_LiabilityForClaimsAndClaimsAdjustmentExpense
Distributions received                 10,300,000us-gaap_EquityMethodInvestmentDividendsOrDistributions 9,900,000us-gaap_EquityMethodInvestmentDividendsOrDistributions 9,900,000us-gaap_EquityMethodInvestmentDividendsOrDistributions
Equity interest investment in related party 143,632,000us-gaap_EquityMethodInvestmentAggregateCost       139,382,000us-gaap_EquityMethodInvestmentAggregateCost       143,632,000us-gaap_EquityMethodInvestmentAggregateCost 139,382,000us-gaap_EquityMethodInvestmentAggregateCost  
Catastrophe Reinsurance and Specialty Reinsurance | Gross Premiums Written                      
Related Party Transaction [Line Items]                      
Percent of gross premiums received                 89.20%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= rnr_GrossPremiumsWrittenMember
/ us-gaap_StatementBusinessSegmentsAxis
= rnr_CatastropheReinsuranceandSpecialtyReinsuranceSegmentsMember
88.20%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= rnr_GrossPremiumsWrittenMember
/ us-gaap_StatementBusinessSegmentsAxis
= rnr_CatastropheReinsuranceandSpecialtyReinsuranceSegmentsMember
84.60%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= rnr_GrossPremiumsWrittenMember
/ us-gaap_StatementBusinessSegmentsAxis
= rnr_CatastropheReinsuranceandSpecialtyReinsuranceSegmentsMember
Number of significant customers                 3rnr_NumberOfSignificantCustomers
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= rnr_GrossPremiumsWrittenMember
/ us-gaap_StatementBusinessSegmentsAxis
= rnr_CatastropheReinsuranceandSpecialtyReinsuranceSegmentsMember
   
Catastrophe Reinsurance and Specialty Reinsurance | Gross Premiums Written | AON Benfield                      
Related Party Transaction [Line Items]                      
Percent of gross premiums received                 56.10%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= rnr_GrossPremiumsWrittenMember
/ us-gaap_MajorCustomersAxis
= rnr_AonBenfieldMember
/ us-gaap_StatementBusinessSegmentsAxis
= rnr_CatastropheReinsuranceandSpecialtyReinsuranceSegmentsMember
48.60%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= rnr_GrossPremiumsWrittenMember
/ us-gaap_MajorCustomersAxis
= rnr_AonBenfieldMember
/ us-gaap_StatementBusinessSegmentsAxis
= rnr_CatastropheReinsuranceandSpecialtyReinsuranceSegmentsMember
51.50%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= rnr_GrossPremiumsWrittenMember
/ us-gaap_MajorCustomersAxis
= rnr_AonBenfieldMember
/ us-gaap_StatementBusinessSegmentsAxis
= rnr_CatastropheReinsuranceandSpecialtyReinsuranceSegmentsMember
Catastrophe Reinsurance and Specialty Reinsurance | Gross Premiums Written | Marsh Inc.                      
Related Party Transaction [Line Items]                      
Percent of gross premiums received                 21.20%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= rnr_GrossPremiumsWrittenMember
/ us-gaap_MajorCustomersAxis
= rnr_MarshIncMember
/ us-gaap_StatementBusinessSegmentsAxis
= rnr_CatastropheReinsuranceandSpecialtyReinsuranceSegmentsMember
22.70%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= rnr_GrossPremiumsWrittenMember
/ us-gaap_MajorCustomersAxis
= rnr_MarshIncMember
/ us-gaap_StatementBusinessSegmentsAxis
= rnr_CatastropheReinsuranceandSpecialtyReinsuranceSegmentsMember
21.40%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= rnr_GrossPremiumsWrittenMember
/ us-gaap_MajorCustomersAxis
= rnr_MarshIncMember
/ us-gaap_StatementBusinessSegmentsAxis
= rnr_CatastropheReinsuranceandSpecialtyReinsuranceSegmentsMember
Catastrophe Reinsurance and Specialty Reinsurance | Gross Premiums Written | Willis Group                      
Related Party Transaction [Line Items]                      
Percent of gross premiums received                 11.90%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= rnr_GrossPremiumsWrittenMember
/ us-gaap_MajorCustomersAxis
= rnr_WillisGroupMember
/ us-gaap_StatementBusinessSegmentsAxis
= rnr_CatastropheReinsuranceandSpecialtyReinsuranceSegmentsMember
16.90%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= rnr_GrossPremiumsWrittenMember
/ us-gaap_MajorCustomersAxis
= rnr_WillisGroupMember
/ us-gaap_StatementBusinessSegmentsAxis
= rnr_CatastropheReinsuranceandSpecialtyReinsuranceSegmentsMember
11.70%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= rnr_GrossPremiumsWrittenMember
/ us-gaap_MajorCustomersAxis
= rnr_WillisGroupMember
/ us-gaap_StatementBusinessSegmentsAxis
= rnr_CatastropheReinsuranceandSpecialtyReinsuranceSegmentsMember
Tower Hill                      
Related Party Transaction [Line Items]                      
Gross premiums written                 40,000,000us-gaap_PremiumsWrittenGross
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= rnr_TowerHillMember
46,700,000us-gaap_PremiumsWrittenGross
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= rnr_TowerHillMember
41,100,000us-gaap_PremiumsWrittenGross
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= rnr_TowerHillMember
Gross premiums earned                 41,900,000us-gaap_AssumedPremiumsEarned
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= rnr_TowerHillMember
44,900,000us-gaap_AssumedPremiumsEarned
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= rnr_TowerHillMember
36,100,000us-gaap_AssumedPremiumsEarned
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= rnr_TowerHillMember
Acquisition expenses                 4,700,000us-gaap_DeferredPolicyAcquisitionCostAmortizationExpense
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= rnr_TowerHillMember
5,300,000us-gaap_DeferredPolicyAcquisitionCostAmortizationExpense
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= rnr_TowerHillMember
3,900,000us-gaap_DeferredPolicyAcquisitionCostAmortizationExpense
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= rnr_TowerHillMember
Related party receivables 18,300,000us-gaap_AccountsReceivableRelatedParties
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= rnr_TowerHillMember
      20,200,000us-gaap_AccountsReceivableRelatedParties
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= rnr_TowerHillMember
      18,300,000us-gaap_AccountsReceivableRelatedParties
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= rnr_TowerHillMember
20,200,000us-gaap_AccountsReceivableRelatedParties
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= rnr_TowerHillMember
 
Net reinsurance costs and recoveries                 3,600,000us-gaap_ReinsuranceCostsAndRecoveriesNet
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= rnr_TowerHillMember
4,100,000us-gaap_ReinsuranceCostsAndRecoveriesNet
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= rnr_TowerHillMember
4,000,000us-gaap_ReinsuranceCostsAndRecoveriesNet
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= rnr_TowerHillMember
Reserve for claims and claim expenses 40,300,000us-gaap_LiabilityForClaimsAndClaimsAdjustmentExpense
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= rnr_TowerHillMember
      37,100,000us-gaap_LiabilityForClaimsAndClaimsAdjustmentExpense
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= rnr_TowerHillMember
      40,300,000us-gaap_LiabilityForClaimsAndClaimsAdjustmentExpense
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= rnr_TowerHillMember
37,100,000us-gaap_LiabilityForClaimsAndClaimsAdjustmentExpense
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= rnr_TowerHillMember
 
Distributions received                 10,000,000us-gaap_EquityMethodInvestmentDividendsOrDistributions
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= rnr_TowerHillMember
9,800,000us-gaap_EquityMethodInvestmentDividendsOrDistributions
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= rnr_TowerHillMember
 
Angus                      
Related Party Transaction [Line Items]                      
Equity interest investment in related party 10,500,000us-gaap_EquityMethodInvestmentAggregateCost
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= rnr_AngusMember
              10,500,000us-gaap_EquityMethodInvestmentAggregateCost
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= rnr_AngusMember
   
Ownership % 40.40%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= rnr_AngusMember
              40.40%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= rnr_AngusMember
   
Related party income                 0us-gaap_RelatedPartyTransactionOtherRevenuesFromTransactionsWithRelatedParty
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= rnr_AngusMember
5,000,000us-gaap_RelatedPartyTransactionOtherRevenuesFromTransactionsWithRelatedParty
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= rnr_AngusMember
7,900,000us-gaap_RelatedPartyTransactionOtherRevenuesFromTransactionsWithRelatedParty
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= rnr_AngusMember
Top Layer Re                      
Related Party Transaction [Line Items]                      
Distributions received                 0us-gaap_EquityMethodInvestmentDividendsOrDistributions
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= rnr_TopLayerReMember
0us-gaap_EquityMethodInvestmentDividendsOrDistributions
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= rnr_TopLayerReMember
0us-gaap_EquityMethodInvestmentDividendsOrDistributions
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= rnr_TopLayerReMember
Management fees revenue                 $ 2,800,000us-gaap_ManagementFeesRevenue
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= rnr_TopLayerReMember
$ 3,800,000us-gaap_ManagementFeesRevenue
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= rnr_TopLayerReMember
$ 4,100,000us-gaap_ManagementFeesRevenue
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= rnr_TopLayerReMember