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Organization Organization (Details) (USD $)
 3 Months Ended 0 Months Ended
Mar. 31, 2015
May 03, 2015
PartnerRe Ltd. [Member]    
Business Acquisition [Line Items]    
Share Exchange Ratio Upon Amalgamation 2.18pre_ShareExchangeRatioUponAmalgamation
/ dei_LegalEntityAxis
= pre_PartnerReLtd.Member		  
Combined Company Shareholding Percentage 51.50%pre_CombinedCompanyShareholdingPercentage
/ dei_LegalEntityAxis
= pre_PartnerReLtd.Member		  
Axis Capital Holdings Ltd [Member]    
Business Acquisition [Line Items]    
Share Exchange Ratio Upon Amalgamation 1.00pre_ShareExchangeRatioUponAmalgamation
/ dei_LegalEntityAxis
= pre_AxisCapitalHoldingsLtdMember		  
Combined Company Shareholding Percentage 48.50%pre_CombinedCompanyShareholdingPercentage
/ dei_LegalEntityAxis
= pre_AxisCapitalHoldingsLtdMember		  
Subsequent Event [Member]    
Business Acquisition [Line Items]    
Special Dividend Per Share   $ 11.50pre_SpecialDividendPerShare
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember