2.2.0.25truefalse04215 - Disclosure - Segment Information (Details - Other Details)truefalsefalse1falsefalseUSDfalsefalse1/1/2010 - 12/31/2010 USD ($) USD ($) / shares $FROM_Jan01_2010_TO_Dec31_2010http://www.sec.gov/CIK0000911421duration2010-01-01T00:00:002010-12-31T00:00:00SharesStandardhttp://www.xbrl.org/2003/instancesharesxbrli0USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170PureStandardhttp://www.xbrl.org/2003/instancepurexbrli0EPSDividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0USDUSD$2falsefalseUSDfalsefalse1/1/2009 - 12/31/2009 USD ($) USD ($) / shares $FROM_Jan01_2009_TO_Dec31_2009http://www.sec.gov/CIK0000911421duration2009-01-01T00:00:002009-12-31T00:00:00PureStandardhttp://www.xbrl.org/2003/instancepurexbrli0USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170EPSDividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0SharesStandardhttp://www.xbrl.org/2003/instancesharesxbrli0USDUSD$3falsefalseUSDfalsefalse1/1/2008 - 12/31/2008 USD ($) $FROM_Jan01_2008_TO_Dec31_2008http://www.sec.gov/CIK0000911421duration2008-01-01T00:00:002008-12-31T00:00:00USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170PureStandardhttp://www.xbrl.org/2003/instancepurexbrli0SharesStandardhttp://www.xbrl.org/2003/instancesharesxbrli0USDUSD$2true0pre_DistributionOfNetPremiumsWrittenLineItemsprefalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalseDistribution Of Net Premiums Written [Line Items]3false0pre_PercentageDistributionOfNetPremiumsWrittenprefalsenadurationThis element represents the distribution of reported Net Premiums Written across the various lines of business.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truetruefalse11falsefalsefalsefalsefalse2truetruefalse11falsefalsefalsefalsefalse3truetruefalse11falsefalsefalsefalsefalseOtherus-types:percentItemTypepureThis element represents the distribution of reported Net Premiums Written across the various lines of business.No authoritative reference available.falsefalseDistribution of net premiums written4true0pre_DistributionOfGrossPremiumsWrittenLineItemsprefalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalseDistribution Of Gross Premiums Written [Line Items]5false0pre_PercentageDistributionOfGrossPremiumsWrittenprefalsenadurationThis element represents the distribution of gross premiums written based on the location of the underlying risk.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truetruefalse11falsefalsefalsefalsefalse2truetruefalse11falsefalsefalsefalsefalse3truetruefalse11falsefalsefalsefalsefalseOtherus-types:percentItemTypepureThis element represents the distribution of gross premiums written based on the location of the underlying risk.No authoritative reference available.falsefalseDistribution of gross premiums written6true0pre_EconomicDependenceLineItemsprefalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalseEconomic Dependence [Line Items]7false0pre_CedantPercentageOfGrossWrittenPremiumprefalsenadurationFor a given underwriting year, represents the maximum amount of gross written premiums that are individually attributable to...falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruefalse0.050.05falsefalsefalsefalsefalse2truetruefalse0.060.06falsefalsefalsefalsefalse3truetruefalse0.070.07falsefalsefalsefalsefalseOtherus-types:percentItemTypepureFor a given underwriting year, represents the maximum amount of gross written premiums that are individually attributable to any one cedant.No authoritative reference available.falsefalseCedant Percentage Of Gross Written Premium8false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.partnerre.com/role/disclosuresegmentinformationdetailsotherdetails1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse4falsefalseUSDtruefalse{us-gaap_StatementBusinessSegmentsAxis} : Life [Member] 1/1/2010 - 12/31/2010 USD ($) $FROM_Jan01_2010_TO_Dec31_2010_us-gaap_StatementBusinessSegmentsAxis_LifeMemberhttp://www.sec.gov/CIK0000911421duration2010-01-01T00:00:002010-12-31T00:00:00falsefalseLife [Member]us-gaap_StatementBusinessSegmentsAxisxbrldihttp://xbrl.org/2006/xbrldipre_LifeMemberus-gaap_StatementBusinessSegmentsAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170PureStandardhttp://www.xbrl.org/2003/instancepurexbrli0USDUSD$5falsefalseUSDtruefalse{us-gaap_StatementBusinessSegmentsAxis} : Life [Member] 1/1/2009 - 12/31/2009 USD ($) $FROM_Jan01_2009_TO_Dec31_2009_us-gaap_StatementBusinessSegmentsAxis_LifeMemberhttp://www.sec.gov/CIK0000911421duration2009-01-01T00:00:002009-12-31T00:00:00falsefalseLife [Member]us-gaap_StatementBusinessSegmentsAxisxbrldihttp://xbrl.org/2006/xbrldipre_LifeMemberus-gaap_StatementBusinessSegmentsAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli0USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$6falsefalseUSDtruefalse{us-gaap_StatementBusinessSegmentsAxis} : Life [Member] 1/1/2008 - 12/31/2008 USD ($) $FROM_Jan01_2008_TO_Dec31_2008_us-gaap_StatementBusinessSegmentsAxis_LifeMemberhttp://www.sec.gov/CIK0000911421duration2008-01-01T00:00:002008-12-31T00:00:00falsefalseLife [Member]us-gaap_StatementBusinessSegmentsAxisxbrldihttp://xbrl.org/2006/xbrldipre_LifeMemberus-gaap_StatementBusinessSegmentsAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170PureStandardhttp://www.xbrl.org/2003/instancepurexbrli0USDUSD$OthernaNo definition available.No authoritative reference available.falsefalseLife [Member]9true0pre_DistributionOfNetPremiumsWrittenLineItemsprefalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalseDistribution Of Net Premiums Written [Line Items]10false0pre_PercentageDistributionOfNetPremiumsWrittenprefalsenadurationThis element represents the distribution of reported Net Premiums Written across the various lines of business.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truetruefalse0.160.16falsefalsefalsefalsefalse2truetruefalse0.150.15falsefalsefalsefalsefalse3truetruefalse0.140.14falsefalsefalsefalsefalseOtherus-types:percentItemTypepureThis element represents the distribution of reported Net Premiums Written across the various lines of business.No authoritative reference available.falsefalseDistribution of net premiums written13false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.partnerre.com/role/disclosuresegmentinformationdetailsotherdetails1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse7falsefalsetruefalse{pre_SegmentEconomicDependenceAxis} : Life [Member] 1/1/2010 - 12/31/2010 FROM_Jan01_2010_TO_Dec31_2010_pre_SegmentEconomicDependenceAxis_LifeMemberhttp://www.sec.gov/CIK0000911421duration2010-01-01T00:00:002010-12-31T00:00:00falsefalseLife [Member]pre_SegmentEconomicDependenceAxisxbrldihttp://xbrl.org/2006/xbrldipre_LifeMemberpre_SegmentEconomicDependenceAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli08falsefalsetruefalse{pre_SegmentEconomicDependenceAxis} : Life [Member] 1/1/2009 - 12/31/2009 FROM_Jan01_2009_TO_Dec31_2009_pre_SegmentEconomicDependenceAxis_LifeMemberhttp://www.sec.gov/CIK0000911421duration2009-01-01T00:00:002009-12-31T00:00:00falsefalseLife [Member]pre_SegmentEconomicDependenceAxisxbrldihttp://xbrl.org/2006/xbrldipre_LifeMemberpre_SegmentEconomicDependenceAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli09falsefalsetruefalse{pre_SegmentEconomicDependenceAxis} : Life [Member] 1/1/2008 - 12/31/2008 FROM_Jan01_2008_TO_Dec31_2008_pre_SegmentEconomicDependenceAxis_LifeMemberhttp://www.sec.gov/CIK0000911421duration2008-01-01T00:00:002008-12-31T00:00:00falsefalseLife [Member]pre_SegmentEconomicDependenceAxisxbrldihttp://xbrl.org/2006/xbrldipre_LifeMemberpre_SegmentEconomicDependenceAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli0OthernaNo definition available.No authoritative reference available.falsefalseLife [Member]16true0pre_EconomicDependenceLineItemsprefalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalseEconomic Dependence [Line Items]17false0pre_BrokerPercentageOfGrossWrittenPremiumprefalsenadurationFor a given underwriting year, represents the percentage of gross written premiums that are attributable to brokers that...falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruefalse0.150.15falsefalsefalsefalsefalse2truetruefalse0.180.18falsefalsefalsefalsefalse3truetruefalse0.180.18falsefalsefalsefalsefalseOtherus-types:percentItemTypepureFor a given underwriting year, represents the percentage of gross written premiums that are attributable to brokers that individually account for 10% or more of gross written premium.No authoritative reference available.falsefalseBroker Percentage Of Gross Written Premium18false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.partnerre.com/role/disclosuresegmentinformationdetailsotherdetails1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse10falsefalsetruefalse{us-gaap_StatementBusinessSegmentsAxis} : Non Life [Member] {pre_NonLifeLineOfBusinessAxis} : Casualty [Member] {pre_NonLifeMajorCategoryAxis} : Property And Casualty [Member] 1/1/2010 - 12/31/2010 FROM_Jan01_2010_TO_Dec31_2010_pre_NonLifeLineOfBusinessAxis_CasualtyMember_us-gaap_StatementBusinessSegmentsAxis_NonLifeMember_pre_NonLifeMajorCategoryAxis_PropertyAndCasualtyMemberhttp://www.sec.gov/CIK0000911421duration2010-01-01T00:00:002010-12-31T00:00:00falsefalseNon Life [Member]us-gaap_StatementBusinessSegmentsAxisxbrldihttp://xbrl.org/2006/xbrldipre_NonLifeMemberus-gaap_StatementBusinessSegmentsAxisexplicitMemberfalsefalseCasualty [Member]pre_NonLifeLineOfBusinessAxisxbrldihttp://xbrl.org/2006/xbrldipre_CasualtyMemberpre_NonLifeLineOfBusinessAxisexplicitMemberfalsefalseProperty And Casualty [Member]pre_NonLifeMajorCategoryAxisxbrldihttp://xbrl.org/2006/xbrldipre_PropertyAndCasualtyMemberpre_NonLifeMajorCategoryAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli011falsefalsetruefalse{us-gaap_StatementBusinessSegmentsAxis} : Non Life [Member] {pre_NonLifeLineOfBusinessAxis} : Casualty [Member] {pre_NonLifeMajorCategoryAxis} : Property And Casualty [Member] 1/1/2009 - 12/31/2009 FROM_Jan01_2009_TO_Dec31_2009_pre_NonLifeLineOfBusinessAxis_CasualtyMember_us-gaap_StatementBusinessSegmentsAxis_NonLifeMember_pre_NonLifeMajorCategoryAxis_PropertyAndCasualtyMemberhttp://www.sec.gov/CIK0000911421duration2009-01-01T00:00:002009-12-31T00:00:00falsefalseNon Life [Member]us-gaap_StatementBusinessSegmentsAxisxbrldihttp://xbrl.org/2006/xbrldipre_NonLifeMemberus-gaap_StatementBusinessSegmentsAxisexplicitMemberfalsefalseCasualty [Member]pre_NonLifeLineOfBusinessAxisxbrldihttp://xbrl.org/2006/xbrldipre_CasualtyMemberpre_NonLifeLineOfBusinessAxisexplicitMemberfalsefalseProperty And Casualty [Member]pre_NonLifeMajorCategoryAxisxbrldihttp://xbrl.org/2006/xbrldipre_PropertyAndCasualtyMemberpre_NonLifeMajorCategoryAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli012falsefalsetruefalse{us-gaap_StatementBusinessSegmentsAxis} : Non Life [Member] {pre_NonLifeLineOfBusinessAxis} : Casualty [Member] {pre_NonLifeMajorCategoryAxis} : Property And Casualty [Member] 1/1/2008 - 12/31/2008 FROM_Jan01_2008_TO_Dec31_2008_pre_NonLifeLineOfBusinessAxis_CasualtyMember_us-gaap_StatementBusinessSegmentsAxis_NonLifeMember_pre_NonLifeMajorCategoryAxis_PropertyAndCasualtyMemberhttp://www.sec.gov/CIK0000911421duration2008-01-01T00:00:002008-12-31T00:00:00falsefalseNon Life [Member]us-gaap_StatementBusinessSegmentsAxisxbrldihttp://xbrl.org/2006/xbrldipre_NonLifeMemberus-gaap_StatementBusinessSegmentsAxisexplicitMemberfalsefalseCasualty [Member]pre_NonLifeLineOfBusinessAxisxbrldihttp://xbrl.org/2006/xbrldipre_CasualtyMemberpre_NonLifeLineOfBusinessAxisexplicitMemberfalsefalseProperty And Casualty [Member]pre_NonLifeMajorCategoryAxisxbrldihttp://xbrl.org/2006/xbrldipre_PropertyAndCasualtyMemberpre_NonLifeMajorCategoryAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli0OthernaNo definition available.No authoritative reference available.falsefalseNon Life [Member] | Casualty [Member] | Property And Casualty [Member]19true0pre_DistributionOfNetPremiumsWrittenLineItemsprefalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalseDistribution Of Net Premiums Written [Line Items]20false0pre_PercentageDistributionOfNetPremiumsWrittenprefalsenadurationThis element represents the distribution of reported Net Premiums Written across the various lines of business.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truetruefalse0.110.11falsefalsefalsefalsefalse2truetruefalse0.130.13falsefalsefalsefalsefalse3truetruefalse0.150.15falsefalsefalsefalsefalseOtherus-types:percentItemTypepureThis element represents the distribution of reported Net Premiums Written across the various lines of business.No authoritative reference available.falsefalseDistribution of net premiums written23false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.partnerre.com/role/disclosuresegmentinformationdetailsotherdetails1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse13falsefalsetruefalse{us-gaap_StatementBusinessSegmentsAxis} : Non Life [Member] {pre_NonLifeLineOfBusinessAxis} : Property [Member] {pre_NonLifeMajorCategoryAxis} : Property And Casualty [Member] 1/1/2010 - 12/31/2010 FROM_Jan01_2010_TO_Dec31_2010_us-gaap_StatementBusinessSegmentsAxis_NonLifeMember_pre_NonLifeMajorCategoryAxis_PropertyAndCasualtyMember_pre_NonLifeLineOfBusinessAxis_PropertyMemberhttp://www.sec.gov/CIK0000911421duration2010-01-01T00:00:002010-12-31T00:00:00falsefalseNon Life [Member]us-gaap_StatementBusinessSegmentsAxisxbrldihttp://xbrl.org/2006/xbrldipre_NonLifeMemberus-gaap_StatementBusinessSegmentsAxisexplicitMemberfalsefalseProperty [Member]pre_NonLifeLineOfBusinessAxisxbrldihttp://xbrl.org/2006/xbrldipre_PropertyMemberpre_NonLifeLineOfBusinessAxisexplicitMemberfalsefalseProperty And Casualty [Member]pre_NonLifeMajorCategoryAxisxbrldihttp://xbrl.org/2006/xbrldipre_PropertyAndCasualtyMemberpre_NonLifeMajorCategoryAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli014falsefalsetruefalse{us-gaap_StatementBusinessSegmentsAxis} : Non Life [Member] {pre_NonLifeLineOfBusinessAxis} : Property [Member] {pre_NonLifeMajorCategoryAxis} : Property And Casualty [Member] 1/1/2009 - 12/31/2009 FROM_Jan01_2009_TO_Dec31_2009_us-gaap_StatementBusinessSegmentsAxis_NonLifeMember_pre_NonLifeMajorCategoryAxis_PropertyAndCasualtyMember_pre_NonLifeLineOfBusinessAxis_PropertyMemberhttp://www.sec.gov/CIK0000911421duration2009-01-01T00:00:002009-12-31T00:00:00falsefalseNon Life [Member]us-gaap_StatementBusinessSegmentsAxisxbrldihttp://xbrl.org/2006/xbrldipre_NonLifeMemberus-gaap_StatementBusinessSegmentsAxisexplicitMemberfalsefalseProperty [Member]pre_NonLifeLineOfBusinessAxisxbrldihttp://xbrl.org/2006/xbrldipre_PropertyMemberpre_NonLifeLineOfBusinessAxisexplicitMemberfalsefalseProperty And Casualty [Member]pre_NonLifeMajorCategoryAxisxbrldihttp://xbrl.org/2006/xbrldipre_PropertyAndCasualtyMemberpre_NonLifeMajorCategoryAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli015falsefalsetruefalse{us-gaap_StatementBusinessSegmentsAxis} : Non Life [Member] {pre_NonLifeLineOfBusinessAxis} : Property [Member] {pre_NonLifeMajorCategoryAxis} : Property And Casualty [Member] 1/1/2008 - 12/31/2008 FROM_Jan01_2008_TO_Dec31_2008_us-gaap_StatementBusinessSegmentsAxis_NonLifeMember_pre_NonLifeMajorCategoryAxis_PropertyAndCasualtyMember_pre_NonLifeLineOfBusinessAxis_PropertyMemberhttp://www.sec.gov/CIK0000911421duration2008-01-01T00:00:002008-12-31T00:00:00falsefalseNon Life [Member]us-gaap_StatementBusinessSegmentsAxisxbrldihttp://xbrl.org/2006/xbrldipre_NonLifeMemberus-gaap_StatementBusinessSegmentsAxisexplicitMemberfalsefalseProperty [Member]pre_NonLifeLineOfBusinessAxisxbrldihttp://xbrl.org/2006/xbrldipre_PropertyMemberpre_NonLifeLineOfBusinessAxisexplicitMemberfalsefalseProperty And Casualty [Member]pre_NonLifeMajorCategoryAxisxbrldihttp://xbrl.org/2006/xbrldipre_PropertyAndCasualtyMemberpre_NonLifeMajorCategoryAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli0OthernaNo definition available.No authoritative reference available.falsefalseNon Life [Member] | Property [Member] | Property And Casualty [Member]24true0pre_DistributionOfNetPremiumsWrittenLineItemsprefalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalseDistribution Of Net Premiums Written [Line Items]25false0pre_PercentageDistributionOfNetPremiumsWrittenprefalsenadurationThis element represents the distribution of reported Net Premiums Written across the various lines of business.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truetruefalse0.180.18falsefalsefalsefalsefalse2truetruefalse0.180.18falsefalsefalsefalsefalse3truetruefalse0.170.17falsefalsefalsefalsefalseOtherus-types:percentItemTypepureThis element represents the distribution of reported Net Premiums Written across the various lines of business.No authoritative reference available.falsefalseDistribution of net premiums written28false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.partnerre.com/role/disclosuresegmentinformationdetailsotherdetails1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse16falsefalsetruefalse{us-gaap_StatementBusinessSegmentsAxis} : Non Life [Member] {pre_NonLifeLineOfBusinessAxis} : Motor [Member] {pre_NonLifeMajorCategoryAxis} : Property And Casualty [Member] 1/1/2010 - 12/31/2010 FROM_Jan01_2010_TO_Dec31_2010_pre_NonLifeLineOfBusinessAxis_MotorMember_us-gaap_StatementBusinessSegmentsAxis_NonLifeMember_pre_NonLifeMajorCategoryAxis_PropertyAndCasualtyMemberhttp://www.sec.gov/CIK0000911421duration2010-01-01T00:00:002010-12-31T00:00:00falsefalseNon Life [Member]us-gaap_StatementBusinessSegmentsAxisxbrldihttp://xbrl.org/2006/xbrldipre_NonLifeMemberus-gaap_StatementBusinessSegmentsAxisexplicitMemberfalsefalseMotor [Member]pre_NonLifeLineOfBusinessAxisxbrldihttp://xbrl.org/2006/xbrldipre_MotorMemberpre_NonLifeLineOfBusinessAxisexplicitMemberfalsefalseProperty And Casualty [Member]pre_NonLifeMajorCategoryAxisxbrldihttp://xbrl.org/2006/xbrldipre_PropertyAndCasualtyMemberpre_NonLifeMajorCategoryAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli017falsefalsetruefalse{us-gaap_StatementBusinessSegmentsAxis} : Non Life [Member] {pre_NonLifeLineOfBusinessAxis} : Motor [Member] {pre_NonLifeMajorCategoryAxis} : Property And Casualty [Member] 1/1/2009 - 12/31/2009 FROM_Jan01_2009_TO_Dec31_2009_pre_NonLifeLineOfBusinessAxis_MotorMember_us-gaap_StatementBusinessSegmentsAxis_NonLifeMember_pre_NonLifeMajorCategoryAxis_PropertyAndCasualtyMemberhttp://www.sec.gov/CIK0000911421duration2009-01-01T00:00:002009-12-31T00:00:00falsefalseNon Life [Member]us-gaap_StatementBusinessSegmentsAxisxbrldihttp://xbrl.org/2006/xbrldipre_NonLifeMemberus-gaap_StatementBusinessSegmentsAxisexplicitMemberfalsefalseMotor [Member]pre_NonLifeLineOfBusinessAxisxbrldihttp://xbrl.org/2006/xbrldipre_MotorMemberpre_NonLifeLineOfBusinessAxisexplicitMemberfalsefalseProperty And Casualty [Member]pre_NonLifeMajorCategoryAxisxbrldihttp://xbrl.org/2006/xbrldipre_PropertyAndCasualtyMemberpre_NonLifeMajorCategoryAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli018falsefalsetruefalse{us-gaap_StatementBusinessSegmentsAxis} : Non Life [Member] {pre_NonLifeLineOfBusinessAxis} : Motor [Member] {pre_NonLifeMajorCategoryAxis} : Property And Casualty [Member] 1/1/2008 - 12/31/2008 FROM_Jan01_2008_TO_Dec31_2008_pre_NonLifeLineOfBusinessAxis_MotorMember_us-gaap_StatementBusinessSegmentsAxis_NonLifeMember_pre_NonLifeMajorCategoryAxis_PropertyAndCasualtyMemberhttp://www.sec.gov/CIK0000911421duration2008-01-01T00:00:002008-12-31T00:00:00falsefalseNon Life [Member]us-gaap_StatementBusinessSegmentsAxisxbrldihttp://xbrl.org/2006/xbrldipre_NonLifeMemberus-gaap_StatementBusinessSegmentsAxisexplicitMemberfalsefalseMotor [Member]pre_NonLifeLineOfBusinessAxisxbrldihttp://xbrl.org/2006/xbrldipre_MotorMemberpre_NonLifeLineOfBusinessAxisexplicitMemberfalsefalseProperty And Casualty [Member]pre_NonLifeMajorCategoryAxisxbrldihttp://xbrl.org/2006/xbrldipre_PropertyAndCasualtyMemberpre_NonLifeMajorCategoryAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli0OthernaNo definition available.No authoritative reference available.falsefalseNon Life [Member] | Motor [Member] | Property And Casualty [Member]29true0pre_DistributionOfNetPremiumsWrittenLineItemsprefalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalseDistribution Of Net Premiums Written [Line Items]30false0pre_PercentageDistributionOfNetPremiumsWrittenprefalsenadurationThis element represents the distribution of reported Net Premiums Written across the various lines of business.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truetruefalse0.070.07falsefalsefalsefalsefalse2truetruefalse0.060.06falsefalsefalsefalsefalse3truetruefalse0.060.06falsefalsefalsefalsefalseOtherus-types:percentItemTypepureThis element represents the distribution of reported Net Premiums Written across the various lines of business.No authoritative reference available.falsefalseDistribution of net premiums written33false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.partnerre.com/role/disclosuresegmentinformationdetailsotherdetails1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse19falsefalsetruefalse{us-gaap_StatementBusinessSegmentsAxis} : Non Life [Member] {pre_NonLifeLineOfBusinessAxis} : Multiline and other [Member] {pre_NonLifeMajorCategoryAxis} : Property And Casualty [Member] 1/1/2010 - 12/31/2010 FROM_Jan01_2010_TO_Dec31_2010_pre_NonLifeLineOfBusinessAxis_MultilineAndOtherMember_us-gaap_StatementBusinessSegmentsAxis_NonLifeMember_pre_NonLifeMajorCategoryAxis_PropertyAndCasualtyMemberhttp://www.sec.gov/CIK0000911421duration2010-01-01T00:00:002010-12-31T00:00:00falsefalseNon Life [Member]us-gaap_StatementBusinessSegmentsAxisxbrldihttp://xbrl.org/2006/xbrldipre_NonLifeMemberus-gaap_StatementBusinessSegmentsAxisexplicitMemberfalsefalseMultiline and other [Member]pre_NonLifeLineOfBusinessAxisxbrldihttp://xbrl.org/2006/xbrldipre_MultilineAndOtherMemberpre_NonLifeLineOfBusinessAxisexplicitMemberfalsefalseProperty And Casualty [Member]pre_NonLifeMajorCategoryAxisxbrldihttp://xbrl.org/2006/xbrldipre_PropertyAndCasualtyMemberpre_NonLifeMajorCategoryAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli020falsefalsetruefalse{us-gaap_StatementBusinessSegmentsAxis} : Non Life [Member] {pre_NonLifeLineOfBusinessAxis} : Multiline and other [Member] {pre_NonLifeMajorCategoryAxis} : Property And Casualty [Member] 1/1/2009 - 12/31/2009 FROM_Jan01_2009_TO_Dec31_2009_pre_NonLifeLineOfBusinessAxis_MultilineAndOtherMember_us-gaap_StatementBusinessSegmentsAxis_NonLifeMember_pre_NonLifeMajorCategoryAxis_PropertyAndCasualtyMemberhttp://www.sec.gov/CIK0000911421duration2009-01-01T00:00:002009-12-31T00:00:00falsefalseNon Life [Member]us-gaap_StatementBusinessSegmentsAxisxbrldihttp://xbrl.org/2006/xbrldipre_NonLifeMemberus-gaap_StatementBusinessSegmentsAxisexplicitMemberfalsefalseMultiline and other [Member]pre_NonLifeLineOfBusinessAxisxbrldihttp://xbrl.org/2006/xbrldipre_MultilineAndOtherMemberpre_NonLifeLineOfBusinessAxisexplicitMemberfalsefalseProperty And Casualty [Member]pre_NonLifeMajorCategoryAxisxbrldihttp://xbrl.org/2006/xbrldipre_PropertyAndCasualtyMemberpre_NonLifeMajorCategoryAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli021falsefalsetruefalse{us-gaap_StatementBusinessSegmentsAxis} : Non Life [Member] {pre_NonLifeLineOfBusinessAxis} : Multiline and other [Member] {pre_NonLifeMajorCategoryAxis} : Property And Casualty [Member] 1/1/2008 - 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12/31/2010 FROM_Jan01_2010_TO_Dec31_2010_pre_NonLifeLineOfBusinessAxis_AviationspaceMember_us-gaap_StatementBusinessSegmentsAxis_NonLifeMember_pre_NonLifeMajorCategoryAxis_SpecialtyMemberhttp://www.sec.gov/CIK0000911421duration2010-01-01T00:00:002010-12-31T00:00:00falsefalseNon Life [Member]us-gaap_StatementBusinessSegmentsAxisxbrldihttp://xbrl.org/2006/xbrldipre_NonLifeMemberus-gaap_StatementBusinessSegmentsAxisexplicitMemberfalsefalseAviation/Space [Member]pre_NonLifeLineOfBusinessAxisxbrldihttp://xbrl.org/2006/xbrldipre_AviationspaceMemberpre_NonLifeLineOfBusinessAxisexplicitMemberfalsefalseSpecialty [Member]pre_NonLifeMajorCategoryAxisxbrldihttp://xbrl.org/2006/xbrldipre_SpecialtyMemberpre_NonLifeMajorCategoryAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli026falsefalsetruefalse{us-gaap_StatementBusinessSegmentsAxis} : Non Life [Member] {pre_NonLifeLineOfBusinessAxis} : Aviation/Space [Member] {pre_NonLifeMajorCategoryAxis} : Specialty [Member] 1/1/2009 - 12/31/2009 FROM_Jan01_2009_TO_Dec31_2009_pre_NonLifeLineOfBusinessAxis_AviationspaceMember_us-gaap_StatementBusinessSegmentsAxis_NonLifeMember_pre_NonLifeMajorCategoryAxis_SpecialtyMemberhttp://www.sec.gov/CIK0000911421duration2009-01-01T00:00:002009-12-31T00:00:00falsefalseNon Life [Member]us-gaap_StatementBusinessSegmentsAxisxbrldihttp://xbrl.org/2006/xbrldipre_NonLifeMemberus-gaap_StatementBusinessSegmentsAxisexplicitMemberfalsefalseAviation/Space [Member]pre_NonLifeLineOfBusinessAxisxbrldihttp://xbrl.org/2006/xbrldipre_AviationspaceMemberpre_NonLifeLineOfBusinessAxisexplicitMemberfalsefalseSpecialty [Member]pre_NonLifeMajorCategoryAxisxbrldihttp://xbrl.org/2006/xbrldipre_SpecialtyMemberpre_NonLifeMajorCategoryAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli027falsefalsetruefalse{us-gaap_StatementBusinessSegmentsAxis} : Non Life [Member] {pre_NonLifeLineOfBusinessAxis} : Aviation/Space [Member] {pre_NonLifeMajorCategoryAxis} : Specialty [Member] 1/1/2008 - 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12/31/2010 FROM_Jan01_2010_TO_Dec31_2010_pre_NonLifeLineOfBusinessAxis_CatastropheLineOfBusinessMember_us-gaap_StatementBusinessSegmentsAxis_NonLifeMember_pre_NonLifeMajorCategoryAxis_SpecialtyMemberhttp://www.sec.gov/CIK0000911421duration2010-01-01T00:00:002010-12-31T00:00:00falsefalseNon Life [Member]us-gaap_StatementBusinessSegmentsAxisxbrldihttp://xbrl.org/2006/xbrldipre_NonLifeMemberus-gaap_StatementBusinessSegmentsAxisexplicitMemberfalsefalseCatastrophe Line Of Business [Member]pre_NonLifeLineOfBusinessAxisxbrldihttp://xbrl.org/2006/xbrldipre_CatastropheLineOfBusinessMemberpre_NonLifeLineOfBusinessAxisexplicitMemberfalsefalseSpecialty [Member]pre_NonLifeMajorCategoryAxisxbrldihttp://xbrl.org/2006/xbrldipre_SpecialtyMemberpre_NonLifeMajorCategoryAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli029falsefalsetruefalse{us-gaap_StatementBusinessSegmentsAxis} : Non Life [Member] {pre_NonLifeLineOfBusinessAxis} : Catastrophe Line Of Business [Member] {pre_NonLifeMajorCategoryAxis} : Specialty [Member] 1/1/2009 - 12/31/2009 FROM_Jan01_2009_TO_Dec31_2009_pre_NonLifeLineOfBusinessAxis_CatastropheLineOfBusinessMember_us-gaap_StatementBusinessSegmentsAxis_NonLifeMember_pre_NonLifeMajorCategoryAxis_SpecialtyMemberhttp://www.sec.gov/CIK0000911421duration2009-01-01T00:00:002009-12-31T00:00:00falsefalseNon Life [Member]us-gaap_StatementBusinessSegmentsAxisxbrldihttp://xbrl.org/2006/xbrldipre_NonLifeMemberus-gaap_StatementBusinessSegmentsAxisexplicitMemberfalsefalseCatastrophe Line Of Business [Member]pre_NonLifeLineOfBusinessAxisxbrldihttp://xbrl.org/2006/xbrldipre_CatastropheLineOfBusinessMemberpre_NonLifeLineOfBusinessAxisexplicitMemberfalsefalseSpecialty [Member]pre_NonLifeMajorCategoryAxisxbrldihttp://xbrl.org/2006/xbrldipre_SpecialtyMemberpre_NonLifeMajorCategoryAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli030falsefalsetruefalse{us-gaap_StatementBusinessSegmentsAxis} : Non Life [Member] {pre_NonLifeLineOfBusinessAxis} : Catastrophe Line Of Business [Member] {pre_NonLifeMajorCategoryAxis} : Specialty [Member] 1/1/2008 - 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12/31/2010 FROM_Jan01_2010_TO_Dec31_2010_pre_NonLifeLineOfBusinessAxis_CreditsuretyMember_us-gaap_StatementBusinessSegmentsAxis_NonLifeMember_pre_NonLifeMajorCategoryAxis_SpecialtyMemberhttp://www.sec.gov/CIK0000911421duration2010-01-01T00:00:002010-12-31T00:00:00falsefalseNon Life [Member]us-gaap_StatementBusinessSegmentsAxisxbrldihttp://xbrl.org/2006/xbrldipre_NonLifeMemberus-gaap_StatementBusinessSegmentsAxisexplicitMemberfalsefalseCredit/Surety [Member]pre_NonLifeLineOfBusinessAxisxbrldihttp://xbrl.org/2006/xbrldipre_CreditsuretyMemberpre_NonLifeLineOfBusinessAxisexplicitMemberfalsefalseSpecialty [Member]pre_NonLifeMajorCategoryAxisxbrldihttp://xbrl.org/2006/xbrldipre_SpecialtyMemberpre_NonLifeMajorCategoryAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli032falsefalsetruefalse{us-gaap_StatementBusinessSegmentsAxis} : Non Life [Member] {pre_NonLifeLineOfBusinessAxis} : Credit/Surety [Member] {pre_NonLifeMajorCategoryAxis} : Specialty [Member] 1/1/2009 - 12/31/2009 FROM_Jan01_2009_TO_Dec31_2009_pre_NonLifeLineOfBusinessAxis_CreditsuretyMember_us-gaap_StatementBusinessSegmentsAxis_NonLifeMember_pre_NonLifeMajorCategoryAxis_SpecialtyMemberhttp://www.sec.gov/CIK0000911421duration2009-01-01T00:00:002009-12-31T00:00:00falsefalseNon Life [Member]us-gaap_StatementBusinessSegmentsAxisxbrldihttp://xbrl.org/2006/xbrldipre_NonLifeMemberus-gaap_StatementBusinessSegmentsAxisexplicitMemberfalsefalseCredit/Surety [Member]pre_NonLifeLineOfBusinessAxisxbrldihttp://xbrl.org/2006/xbrldipre_CreditsuretyMemberpre_NonLifeLineOfBusinessAxisexplicitMemberfalsefalseSpecialty [Member]pre_NonLifeMajorCategoryAxisxbrldihttp://xbrl.org/2006/xbrldipre_SpecialtyMemberpre_NonLifeMajorCategoryAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli033falsefalsetruefalse{us-gaap_StatementBusinessSegmentsAxis} : Non Life [Member] {pre_NonLifeLineOfBusinessAxis} : Credit/Surety [Member] {pre_NonLifeMajorCategoryAxis} : Specialty [Member] 1/1/2008 - 12/31/2008 FROM_Jan01_2008_TO_Dec31_2008_pre_NonLifeLineOfBusinessAxis_CreditsuretyMember_us-gaap_StatementBusinessSegmentsAxis_NonLifeMember_pre_NonLifeMajorCategoryAxis_SpecialtyMemberhttp://www.sec.gov/CIK0000911421duration2008-01-01T00:00:002008-12-31T00:00:00falsefalseNon Life [Member]us-gaap_StatementBusinessSegmentsAxisxbrldihttp://xbrl.org/2006/xbrldipre_NonLifeMemberus-gaap_StatementBusinessSegmentsAxisexplicitMemberfalsefalseCredit/Surety [Member]pre_NonLifeLineOfBusinessAxisxbrldihttp://xbrl.org/2006/xbrldipre_CreditsuretyMemberpre_NonLifeLineOfBusinessAxisexplicitMemberfalsefalseSpecialty [Member]pre_NonLifeMajorCategoryAxisxbrldihttp://xbrl.org/2006/xbrldipre_SpecialtyMemberpre_NonLifeMajorCategoryAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli0OthernaNo definition available.No authoritative reference available.falsefalseNon Life [Member] | Credit/Surety [Member] | Specialty [Member]54true0pre_DistributionOfNetPremiumsWrittenLineItemsprefalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalseDistribution Of Net Premiums Written [Line Items]55false0pre_PercentageDistributionOfNetPremiumsWrittenprefalsenadurationThis element represents the distribution of reported Net Premiums Written across the various lines of business.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truetruefalse0.060.06falsefalsefalsefalsefalse2truetruefalse0.060.06falsefalsefalsefalsefalse3truetruefalse0.070.07falsefalsefalsefalsefalseOtherus-types:percentItemTypepureThis element represents the distribution of reported Net Premiums Written across the various lines of business.No authoritative reference available.falsefalseDistribution of net premiums written58false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.partnerre.com/role/disclosuresegmentinformationdetailsotherdetails1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse34falsefalsetruefalse{us-gaap_StatementBusinessSegmentsAxis} : Non Life [Member] {pre_NonLifeLineOfBusinessAxis} : Engineering [Member] {pre_NonLifeMajorCategoryAxis} : Specialty [Member] 1/1/2010 - 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12/31/2010 FROM_Jan01_2010_TO_Dec31_2010_pre_NonLifeLineOfBusinessAxis_MarineMember_us-gaap_StatementBusinessSegmentsAxis_NonLifeMember_pre_NonLifeMajorCategoryAxis_SpecialtyMemberhttp://www.sec.gov/CIK0000911421duration2010-01-01T00:00:002010-12-31T00:00:00falsefalseNon Life [Member]us-gaap_StatementBusinessSegmentsAxisxbrldihttp://xbrl.org/2006/xbrldipre_NonLifeMemberus-gaap_StatementBusinessSegmentsAxisexplicitMemberfalsefalseMarine [Member]pre_NonLifeLineOfBusinessAxisxbrldihttp://xbrl.org/2006/xbrldipre_MarineMemberpre_NonLifeLineOfBusinessAxisexplicitMemberfalsefalseSpecialty [Member]pre_NonLifeMajorCategoryAxisxbrldihttp://xbrl.org/2006/xbrldipre_SpecialtyMemberpre_NonLifeMajorCategoryAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli041falsefalsetruefalse{us-gaap_StatementBusinessSegmentsAxis} : Non Life [Member] {pre_NonLifeLineOfBusinessAxis} : Marine [Member] {pre_NonLifeMajorCategoryAxis} : Specialty [Member] 1/1/2009 - 12/31/2009 FROM_Jan01_2009_TO_Dec31_2009_pre_NonLifeLineOfBusinessAxis_MarineMember_us-gaap_StatementBusinessSegmentsAxis_NonLifeMember_pre_NonLifeMajorCategoryAxis_SpecialtyMemberhttp://www.sec.gov/CIK0000911421duration2009-01-01T00:00:002009-12-31T00:00:00falsefalseNon Life [Member]us-gaap_StatementBusinessSegmentsAxisxbrldihttp://xbrl.org/2006/xbrldipre_NonLifeMemberus-gaap_StatementBusinessSegmentsAxisexplicitMemberfalsefalseMarine [Member]pre_NonLifeLineOfBusinessAxisxbrldihttp://xbrl.org/2006/xbrldipre_MarineMemberpre_NonLifeLineOfBusinessAxisexplicitMemberfalsefalseSpecialty [Member]pre_NonLifeMajorCategoryAxisxbrldihttp://xbrl.org/2006/xbrldipre_SpecialtyMemberpre_NonLifeMajorCategoryAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli042falsefalsetruefalse{us-gaap_StatementBusinessSegmentsAxis} : Non Life [Member] {pre_NonLifeLineOfBusinessAxis} : Marine [Member] {pre_NonLifeMajorCategoryAxis} : Specialty [Member] 1/1/2008 - 12/31/2008 FROM_Jan01_2008_TO_Dec31_2008_pre_NonLifeLineOfBusinessAxis_MarineMember_us-gaap_StatementBusinessSegmentsAxis_NonLifeMember_pre_NonLifeMajorCategoryAxis_SpecialtyMemberhttp://www.sec.gov/CIK0000911421duration2008-01-01T00:00:002008-12-31T00:00:00falsefalseNon Life [Member]us-gaap_StatementBusinessSegmentsAxisxbrldihttp://xbrl.org/2006/xbrldipre_NonLifeMemberus-gaap_StatementBusinessSegmentsAxisexplicitMemberfalsefalseMarine [Member]pre_NonLifeLineOfBusinessAxisxbrldihttp://xbrl.org/2006/xbrldipre_MarineMemberpre_NonLifeLineOfBusinessAxisexplicitMemberfalsefalseSpecialty [Member]pre_NonLifeMajorCategoryAxisxbrldihttp://xbrl.org/2006/xbrldipre_SpecialtyMemberpre_NonLifeMajorCategoryAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli0OthernaNo definition available.No authoritative reference available.falsefalseNon Life [Member] | Marine [Member] | Specialty [Member]69true0pre_DistributionOfNetPremiumsWrittenLineItemsprefalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalseDistribution Of Net Premiums Written [Line Items]70false0pre_PercentageDistributionOfNetPremiumsWrittenprefalsenadurationThis element represents the distribution of reported Net Premiums Written across the various lines of business.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truetruefalse0.060.06falsefalsefalsefalsefalse2truetruefalse0.050.05falsefalsefalsefalsefalse3truetruefalse0.040.04falsefalsefalsefalsefalseOtherus-types:percentItemTypepureThis element represents the distribution of reported Net Premiums Written across the various lines of business.No authoritative reference available.falsefalseDistribution of net premiums written73false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.partnerre.com/role/disclosuresegmentinformationdetailsotherdetails1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse43falsefalsetruefalse{us-gaap_StatementBusinessSegmentsAxis} : Non Life [Member] {pre_NonLifeLineOfBusinessAxis} : Specialty Casualty [Member] {pre_NonLifeMajorCategoryAxis} : Specialty [Member] 1/1/2010 - 12/31/2010 FROM_Jan01_2010_TO_Dec31_2010_us-gaap_StatementBusinessSegmentsAxis_NonLifeMember_pre_NonLifeLineOfBusinessAxis_SpecialtyCasualtyMember_pre_NonLifeMajorCategoryAxis_SpecialtyMemberhttp://www.sec.gov/CIK0000911421duration2010-01-01T00:00:002010-12-31T00:00:00falsefalseNon Life [Member]us-gaap_StatementBusinessSegmentsAxisxbrldihttp://xbrl.org/2006/xbrldipre_NonLifeMemberus-gaap_StatementBusinessSegmentsAxisexplicitMemberfalsefalseSpecialty Casualty [Member]pre_NonLifeLineOfBusinessAxisxbrldihttp://xbrl.org/2006/xbrldipre_SpecialtyCasualtyMemberpre_NonLifeLineOfBusinessAxisexplicitMemberfalsefalseSpecialty [Member]pre_NonLifeMajorCategoryAxisxbrldihttp://xbrl.org/2006/xbrldipre_SpecialtyMemberpre_NonLifeMajorCategoryAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli044falsefalsetruefalse{us-gaap_StatementBusinessSegmentsAxis} : Non Life [Member] {pre_NonLifeLineOfBusinessAxis} : Specialty Casualty [Member] {pre_NonLifeMajorCategoryAxis} : Specialty [Member] 1/1/2009 - 12/31/2009 FROM_Jan01_2009_TO_Dec31_2009_us-gaap_StatementBusinessSegmentsAxis_NonLifeMember_pre_NonLifeLineOfBusinessAxis_SpecialtyCasualtyMember_pre_NonLifeMajorCategoryAxis_SpecialtyMemberhttp://www.sec.gov/CIK0000911421duration2009-01-01T00:00:002009-12-31T00:00:00falsefalseNon Life [Member]us-gaap_StatementBusinessSegmentsAxisxbrldihttp://xbrl.org/2006/xbrldipre_NonLifeMemberus-gaap_StatementBusinessSegmentsAxisexplicitMemberfalsefalseSpecialty Casualty [Member]pre_NonLifeLineOfBusinessAxisxbrldihttp://xbrl.org/2006/xbrldipre_SpecialtyCasualtyMemberpre_NonLifeLineOfBusinessAxisexplicitMemberfalsefalseSpecialty [Member]pre_NonLifeMajorCategoryAxisxbrldihttp://xbrl.org/2006/xbrldipre_SpecialtyMemberpre_NonLifeMajorCategoryAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli045falsefalsetruefalse{us-gaap_StatementBusinessSegmentsAxis} : Non Life [Member] {pre_NonLifeLineOfBusinessAxis} : Specialty Casualty [Member] {pre_NonLifeMajorCategoryAxis} : Specialty [Member] 1/1/2008 - 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12/31/2010 FROM_Jan01_2010_TO_Dec31_2010_us-gaap_StatementBusinessSegmentsAxis_NonLifeMember_pre_NonLifeMajorCategoryAxis_SpecialtyMember_pre_NonLifeLineOfBusinessAxis_SpecialtyPropertyMemberhttp://www.sec.gov/CIK0000911421duration2010-01-01T00:00:002010-12-31T00:00:00falsefalseNon Life [Member]us-gaap_StatementBusinessSegmentsAxisxbrldihttp://xbrl.org/2006/xbrldipre_NonLifeMemberus-gaap_StatementBusinessSegmentsAxisexplicitMemberfalsefalseSpecialty Property [Member]pre_NonLifeLineOfBusinessAxisxbrldihttp://xbrl.org/2006/xbrldipre_SpecialtyPropertyMemberpre_NonLifeLineOfBusinessAxisexplicitMemberfalsefalseSpecialty [Member]pre_NonLifeMajorCategoryAxisxbrldihttp://xbrl.org/2006/xbrldipre_SpecialtyMemberpre_NonLifeMajorCategoryAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli047falsefalsetruefalse{us-gaap_StatementBusinessSegmentsAxis} : Non Life [Member] {pre_NonLifeLineOfBusinessAxis} : Specialty Property [Member] {pre_NonLifeMajorCategoryAxis} : Specialty [Member] 1/1/2009 - 12/31/2009 FROM_Jan01_2009_TO_Dec31_2009_us-gaap_StatementBusinessSegmentsAxis_NonLifeMember_pre_NonLifeMajorCategoryAxis_SpecialtyMember_pre_NonLifeLineOfBusinessAxis_SpecialtyPropertyMemberhttp://www.sec.gov/CIK0000911421duration2009-01-01T00:00:002009-12-31T00:00:00falsefalseNon Life [Member]us-gaap_StatementBusinessSegmentsAxisxbrldihttp://xbrl.org/2006/xbrldipre_NonLifeMemberus-gaap_StatementBusinessSegmentsAxisexplicitMemberfalsefalseSpecialty Property [Member]pre_NonLifeLineOfBusinessAxisxbrldihttp://xbrl.org/2006/xbrldipre_SpecialtyPropertyMemberpre_NonLifeLineOfBusinessAxisexplicitMemberfalsefalseSpecialty [Member]pre_NonLifeMajorCategoryAxisxbrldihttp://xbrl.org/2006/xbrldipre_SpecialtyMemberpre_NonLifeMajorCategoryAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli048falsefalsetruefalse{us-gaap_StatementBusinessSegmentsAxis} : Non Life [Member] {pre_NonLifeLineOfBusinessAxis} : Specialty Property [Member] {pre_NonLifeMajorCategoryAxis} : Specialty [Member] 1/1/2008 - 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12/31/2010 FROM_Jan01_2010_TO_Dec31_2010_pre_SegmentEconomicDependenceAxis_NonLifeMember_pre_SubsegmentEconomicDependenceAxis_NorthAmericaMemberhttp://www.sec.gov/CIK0000911421duration2010-01-01T00:00:002010-12-31T00:00:00falsefalseNon Life [Member]pre_SegmentEconomicDependenceAxisxbrldihttp://xbrl.org/2006/xbrldipre_NonLifeMemberpre_SegmentEconomicDependenceAxisexplicitMemberfalsefalseNorth America [Member]pre_SubsegmentEconomicDependenceAxisxbrldihttp://xbrl.org/2006/xbrldipre_NorthAmericaMemberpre_SubsegmentEconomicDependenceAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli050falsefalsetruefalse{pre_SegmentEconomicDependenceAxis} : Non Life [Member] {pre_SubsegmentEconomicDependenceAxis} : North America [Member] 1/1/2009 - 12/31/2009 FROM_Jan01_2009_TO_Dec31_2009_pre_SegmentEconomicDependenceAxis_NonLifeMember_pre_SubsegmentEconomicDependenceAxis_NorthAmericaMemberhttp://www.sec.gov/CIK0000911421duration2009-01-01T00:00:002009-12-31T00:00:00falsefalseNon Life [Member]pre_SegmentEconomicDependenceAxisxbrldihttp://xbrl.org/2006/xbrldipre_NonLifeMemberpre_SegmentEconomicDependenceAxisexplicitMemberfalsefalseNorth America [Member]pre_SubsegmentEconomicDependenceAxisxbrldihttp://xbrl.org/2006/xbrldipre_NorthAmericaMemberpre_SubsegmentEconomicDependenceAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli051falsefalsetruefalse{pre_SegmentEconomicDependenceAxis} : Non Life [Member] {pre_SubsegmentEconomicDependenceAxis} : North America [Member] 1/1/2008 - 12/31/2008 FROM_Jan01_2008_TO_Dec31_2008_pre_SegmentEconomicDependenceAxis_NonLifeMember_pre_SubsegmentEconomicDependenceAxis_NorthAmericaMemberhttp://www.sec.gov/CIK0000911421duration2008-01-01T00:00:002008-12-31T00:00:00falsefalseNon Life [Member]pre_SegmentEconomicDependenceAxisxbrldihttp://xbrl.org/2006/xbrldipre_NonLifeMemberpre_SegmentEconomicDependenceAxisexplicitMemberfalsefalseNorth America [Member]pre_SubsegmentEconomicDependenceAxisxbrldihttp://xbrl.org/2006/xbrldipre_NorthAmericaMemberpre_SubsegmentEconomicDependenceAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli0OthernaNo definition available.No authoritative reference available.falsefalseNon Life [Member] | North America [Member]86true0pre_EconomicDependenceLineItemsprefalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalseEconomic Dependence [Line Items]87false0pre_BrokerPercentageOfGrossWrittenPremiumprefalsenadurationFor a given underwriting year, represents the percentage of gross written premiums that are attributable to brokers that...falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruefalse0.770.77falsefalsefalsefalsefalse2truetruefalse0.780.78falsefalsefalsefalsefalse3truetruefalse0.700.70falsefalsefalsefalsefalseOtherus-types:percentItemTypepureFor a given underwriting year, represents the percentage of gross written premiums that are attributable to brokers that individually account for 10% or more of gross written premium.No authoritative reference available.falsefalseBroker Percentage Of Gross Written Premium88false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.partnerre.com/role/disclosuresegmentinformationdetailsotherdetails1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse52falsefalsetruefalse{pre_SegmentEconomicDependenceAxis} : Non Life [Member] {pre_SubsegmentEconomicDependenceAxis} : Global (Non-US) P&C [Member] 1/1/2010 - 12/31/2010 FROM_Jan01_2010_TO_Dec31_2010_pre_SubsegmentEconomicDependenceAxis_GlobalNonUsPcMember_pre_SegmentEconomicDependenceAxis_NonLifeMemberhttp://www.sec.gov/CIK0000911421duration2010-01-01T00:00:002010-12-31T00:00:00falsefalseNon Life [Member]pre_SegmentEconomicDependenceAxisxbrldihttp://xbrl.org/2006/xbrldipre_NonLifeMemberpre_SegmentEconomicDependenceAxisexplicitMemberfalsefalseGlobal (Non-US) P&C [Member]pre_SubsegmentEconomicDependenceAxisxbrldihttp://xbrl.org/2006/xbrldipre_GlobalNonUsPcMemberpre_SubsegmentEconomicDependenceAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli053falsefalsetruefalse{pre_SegmentEconomicDependenceAxis} : Non Life [Member] {pre_SubsegmentEconomicDependenceAxis} : Global (Non-US) P&C [Member] 1/1/2009 - 12/31/2009 FROM_Jan01_2009_TO_Dec31_2009_pre_SubsegmentEconomicDependenceAxis_GlobalNonUsPcMember_pre_SegmentEconomicDependenceAxis_NonLifeMemberhttp://www.sec.gov/CIK0000911421duration2009-01-01T00:00:002009-12-31T00:00:00falsefalseNon Life [Member]pre_SegmentEconomicDependenceAxisxbrldihttp://xbrl.org/2006/xbrldipre_NonLifeMemberpre_SegmentEconomicDependenceAxisexplicitMemberfalsefalseGlobal (Non-US) P&C [Member]pre_SubsegmentEconomicDependenceAxisxbrldihttp://xbrl.org/2006/xbrldipre_GlobalNonUsPcMemberpre_SubsegmentEconomicDependenceAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli054falsefalsetruefalse{pre_SegmentEconomicDependenceAxis} : Non Life [Member] {pre_SubsegmentEconomicDependenceAxis} : Global (Non-US) P&C [Member] 1/1/2008 - 12/31/2008 FROM_Jan01_2008_TO_Dec31_2008_pre_SubsegmentEconomicDependenceAxis_GlobalNonUsPcMember_pre_SegmentEconomicDependenceAxis_NonLifeMemberhttp://www.sec.gov/CIK0000911421duration2008-01-01T00:00:002008-12-31T00:00:00falsefalseNon Life [Member]pre_SegmentEconomicDependenceAxisxbrldihttp://xbrl.org/2006/xbrldipre_NonLifeMemberpre_SegmentEconomicDependenceAxisexplicitMemberfalsefalseGlobal (Non-US) P&C [Member]pre_SubsegmentEconomicDependenceAxisxbrldihttp://xbrl.org/2006/xbrldipre_GlobalNonUsPcMemberpre_SubsegmentEconomicDependenceAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli0OthernaNo definition available.No authoritative reference available.falsefalseNon Life [Member] | Global (Non-US) P&C [Member]91true0pre_EconomicDependenceLineItemsprefalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalseEconomic Dependence [Line Items]92false0pre_BrokerPercentageOfGrossWrittenPremiumprefalsenadurationFor a given underwriting year, represents the percentage of gross written premiums that are attributable to brokers that...falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruefalse0.320.32falsefalsefalsefalsefalse2truetruefalse0.250.25falsefalsefalsefalsefalse3truetruefalse0.240.24falsefalsefalsefalsefalseOtherus-types:percentItemTypepureFor a given underwriting year, represents the percentage of gross written premiums that are attributable to brokers that individually account for 10% or more of gross written premium.No authoritative reference available.falsefalseBroker Percentage Of Gross Written Premium93false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.partnerre.com/role/disclosuresegmentinformationdetailsotherdetails1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse55falsefalsetruefalse{pre_SegmentEconomicDependenceAxis} : Non Life [Member] {pre_SubsegmentEconomicDependenceAxis} : Global (Non-US) Specialty [Member] 1/1/2010 - 12/31/2010 FROM_Jan01_2010_TO_Dec31_2010_pre_SubsegmentEconomicDependenceAxis_GlobalNonUsSpecialtyMember_pre_SegmentEconomicDependenceAxis_NonLifeMemberhttp://www.sec.gov/CIK0000911421duration2010-01-01T00:00:002010-12-31T00:00:00falsefalseNon Life [Member]pre_SegmentEconomicDependenceAxisxbrldihttp://xbrl.org/2006/xbrldipre_NonLifeMemberpre_SegmentEconomicDependenceAxisexplicitMemberfalsefalseGlobal (Non-US) Specialty [Member]pre_SubsegmentEconomicDependenceAxisxbrldihttp://xbrl.org/2006/xbrldipre_GlobalNonUsSpecialtyMemberpre_SubsegmentEconomicDependenceAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli056falsefalsetruefalse{pre_SegmentEconomicDependenceAxis} : Non Life [Member] {pre_SubsegmentEconomicDependenceAxis} : Global (Non-US) Specialty [Member] 1/1/2009 - 12/31/2009 FROM_Jan01_2009_TO_Dec31_2009_pre_SubsegmentEconomicDependenceAxis_GlobalNonUsSpecialtyMember_pre_SegmentEconomicDependenceAxis_NonLifeMemberhttp://www.sec.gov/CIK0000911421duration2009-01-01T00:00:002009-12-31T00:00:00falsefalseNon Life [Member]pre_SegmentEconomicDependenceAxisxbrldihttp://xbrl.org/2006/xbrldipre_NonLifeMemberpre_SegmentEconomicDependenceAxisexplicitMemberfalsefalseGlobal (Non-US) Specialty [Member]pre_SubsegmentEconomicDependenceAxisxbrldihttp://xbrl.org/2006/xbrldipre_GlobalNonUsSpecialtyMemberpre_SubsegmentEconomicDependenceAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli057falsefalsetruefalse{pre_SegmentEconomicDependenceAxis} : Non Life [Member] {pre_SubsegmentEconomicDependenceAxis} : Global (Non-US) Specialty [Member] 1/1/2008 - 12/31/2008 FROM_Jan01_2008_TO_Dec31_2008_pre_SubsegmentEconomicDependenceAxis_GlobalNonUsSpecialtyMember_pre_SegmentEconomicDependenceAxis_NonLifeMemberhttp://www.sec.gov/CIK0000911421duration2008-01-01T00:00:002008-12-31T00:00:00falsefalseNon Life [Member]pre_SegmentEconomicDependenceAxisxbrldihttp://xbrl.org/2006/xbrldipre_NonLifeMemberpre_SegmentEconomicDependenceAxisexplicitMemberfalsefalseGlobal (Non-US) Specialty [Member]pre_SubsegmentEconomicDependenceAxisxbrldihttp://xbrl.org/2006/xbrldipre_GlobalNonUsSpecialtyMemberpre_SubsegmentEconomicDependenceAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli0OthernaNo definition available.No authoritative reference available.falsefalseNon Life [Member] | Global (Non-US) Specialty [Member]96true0pre_EconomicDependenceLineItemsprefalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalseEconomic Dependence [Line Items]97false0pre_BrokerPercentageOfGrossWrittenPremiumprefalsenadurationFor a given underwriting year, represents the percentage of gross written premiums that are attributable to brokers that...falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruefalse0.370.37falsefalsefalsefalsefalse2truetruefalse0.270.27falsefalsefalsefalsefalse3truetruefalse0.240.24falsefalsefalsefalsefalseOtherus-types:percentItemTypepureFor a given underwriting year, represents the percentage of gross written premiums that are attributable to brokers that individually account for 10% or more of gross written premium.No authoritative reference available.falsefalseBroker Percentage Of Gross Written Premium98false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.partnerre.com/role/disclosuresegmentinformationdetailsotherdetails1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse58falsefalsetruefalse{pre_SegmentEconomicDependenceAxis} : Non Life [Member] {pre_SubsegmentEconomicDependenceAxis} : Catastrophe Segment [Member] 1/1/2010 - 12/31/2010 FROM_Jan01_2010_TO_Dec31_2010_pre_SubsegmentEconomicDependenceAxis_CatastropheSegmentMember_pre_SegmentEconomicDependenceAxis_NonLifeMemberhttp://www.sec.gov/CIK0000911421duration2010-01-01T00:00:002010-12-31T00:00:00falsefalseNon Life [Member]pre_SegmentEconomicDependenceAxisxbrldihttp://xbrl.org/2006/xbrldipre_NonLifeMemberpre_SegmentEconomicDependenceAxisexplicitMemberfalsefalseCatastrophe Segment [Member]pre_SubsegmentEconomicDependenceAxisxbrldihttp://xbrl.org/2006/xbrldipre_CatastropheSegmentMemberpre_SubsegmentEconomicDependenceAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli059falsefalsetruefalse{pre_SegmentEconomicDependenceAxis} : Non Life [Member] {pre_SubsegmentEconomicDependenceAxis} : Catastrophe Segment [Member] 1/1/2009 - 12/31/2009 FROM_Jan01_2009_TO_Dec31_2009_pre_SubsegmentEconomicDependenceAxis_CatastropheSegmentMember_pre_SegmentEconomicDependenceAxis_NonLifeMemberhttp://www.sec.gov/CIK0000911421duration2009-01-01T00:00:002009-12-31T00:00:00falsefalseNon Life [Member]pre_SegmentEconomicDependenceAxisxbrldihttp://xbrl.org/2006/xbrldipre_NonLifeMemberpre_SegmentEconomicDependenceAxisexplicitMemberfalsefalseCatastrophe Segment [Member]pre_SubsegmentEconomicDependenceAxisxbrldihttp://xbrl.org/2006/xbrldipre_CatastropheSegmentMemberpre_SubsegmentEconomicDependenceAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli060falsefalsetruefalse{pre_SegmentEconomicDependenceAxis} : Non Life [Member] {pre_SubsegmentEconomicDependenceAxis} : Catastrophe Segment [Member] 1/1/2008 - 12/31/2008 FROM_Jan01_2008_TO_Dec31_2008_pre_SubsegmentEconomicDependenceAxis_CatastropheSegmentMember_pre_SegmentEconomicDependenceAxis_NonLifeMemberhttp://www.sec.gov/CIK0000911421duration2008-01-01T00:00:002008-12-31T00:00:00falsefalseNon Life [Member]pre_SegmentEconomicDependenceAxisxbrldihttp://xbrl.org/2006/xbrldipre_NonLifeMemberpre_SegmentEconomicDependenceAxisexplicitMemberfalsefalseCatastrophe Segment [Member]pre_SubsegmentEconomicDependenceAxisxbrldihttp://xbrl.org/2006/xbrldipre_CatastropheSegmentMemberpre_SubsegmentEconomicDependenceAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli0OthernaNo definition available.No authoritative reference available.falsefalseNon Life [Member] | Catastrophe Segment [Member]101true0pre_EconomicDependenceLineItemsprefalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalseEconomic Dependence [Line Items]102false0pre_BrokerPercentageOfGrossWrittenPremiumprefalsenadurationFor a given underwriting year, represents the percentage of gross written premiums that are attributable to brokers that...falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruefalse0.700.70falsefalsefalsefalsefalse2truetruefalse0.700.70falsefalsefalsefalsefalse3truetruefalse0.740.74falsefalsefalsefalsefalseOtherus-types:percentItemTypepureFor a given underwriting year, represents the percentage of gross written premiums that are attributable to brokers that individually account for 10% or more of gross written premium.No authoritative reference available.falsefalseBroker Percentage Of Gross Written Premium103false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.partnerre.com/role/disclosuresegmentinformationdetailsotherdetails1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse61falsefalsetruefalse{us-gaap_StatementGeographicalAxis} : North America Geographic [Member] 1/1/2010 - 12/31/2010 FROM_Jan01_2010_TO_Dec31_2010_us-gaap_StatementGeographicalAxis_NorthAmericaGeographicMemberhttp://www.sec.gov/CIK0000911421duration2010-01-01T00:00:002010-12-31T00:00:00falsefalseNorth America Geographic [Member]us-gaap_StatementGeographicalAxisxbrldihttp://xbrl.org/2006/xbrldipre_NorthAmericaGeographicMemberus-gaap_StatementGeographicalAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli062falsefalsetruefalse{us-gaap_StatementGeographicalAxis} : North America Geographic [Member] 1/1/2009 - 12/31/2009 FROM_Jan01_2009_TO_Dec31_2009_us-gaap_StatementGeographicalAxis_NorthAmericaGeographicMemberhttp://www.sec.gov/CIK0000911421duration2009-01-01T00:00:002009-12-31T00:00:00falsefalseNorth America Geographic [Member]us-gaap_StatementGeographicalAxisxbrldihttp://xbrl.org/2006/xbrldipre_NorthAmericaGeographicMemberus-gaap_StatementGeographicalAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli063falsefalsetruefalse{us-gaap_StatementGeographicalAxis} : North America Geographic [Member] 1/1/2008 - 12/31/2008 FROM_Jan01_2008_TO_Dec31_2008_us-gaap_StatementGeographicalAxis_NorthAmericaGeographicMemberhttp://www.sec.gov/CIK0000911421duration2008-01-01T00:00:002008-12-31T00:00:00falsefalseNorth America Geographic [Member]us-gaap_StatementGeographicalAxisxbrldihttp://xbrl.org/2006/xbrldipre_NorthAmericaGeographicMemberus-gaap_StatementGeographicalAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli0OthernaNo definition available.No authoritative reference available.falsefalseNorth America Geographic [Member]105true0pre_DistributionOfGrossPremiumsWrittenLineItemsprefalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalseDistribution Of Gross Premiums Written [Line Items]106false0pre_PercentageDistributionOfGrossPremiumsWrittenprefalsenadurationThis element represents the distribution of gross premiums written based on the location of the underlying risk.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truetruefalse0.360.36falsefalsefalsefalsefalse2truetruefalse0.410.41falsefalsefalsefalsefalse3truetruefalse0.410.41falsefalsefalsefalsefalseOtherus-types:percentItemTypepureThis element represents the distribution of gross premiums written based on the location of the underlying risk.No authoritative reference available.falsefalseDistribution of gross premiums written108false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.partnerre.com/role/disclosuresegmentinformationdetailsotherdetails1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse64falsefalsetruefalse{us-gaap_StatementGeographicalAxis} : Europe [Member] 1/1/2010 - 12/31/2010 FROM_Jan01_2010_TO_Dec31_2010_us-gaap_StatementGeographicalAxis_EuropeMemberhttp://www.sec.gov/CIK0000911421duration2010-01-01T00:00:002010-12-31T00:00:00falsefalseEurope [Member]us-gaap_StatementGeographicalAxisxbrldihttp://xbrl.org/2006/xbrldipre_EuropeMemberus-gaap_StatementGeographicalAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli065falsefalsetruefalse{us-gaap_StatementGeographicalAxis} : Europe [Member] 1/1/2009 - 12/31/2009 FROM_Jan01_2009_TO_Dec31_2009_us-gaap_StatementGeographicalAxis_EuropeMemberhttp://www.sec.gov/CIK0000911421duration2009-01-01T00:00:002009-12-31T00:00:00falsefalseEurope [Member]us-gaap_StatementGeographicalAxisxbrldihttp://xbrl.org/2006/xbrldipre_EuropeMemberus-gaap_StatementGeographicalAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli066falsefalsetruefalse{us-gaap_StatementGeographicalAxis} : Europe [Member] 1/1/2008 - 12/31/2008 FROM_Jan01_2008_TO_Dec31_2008_us-gaap_StatementGeographicalAxis_EuropeMemberhttp://www.sec.gov/CIK0000911421duration2008-01-01T00:00:002008-12-31T00:00:00falsefalseEurope [Member]us-gaap_StatementGeographicalAxisxbrldihttp://xbrl.org/2006/xbrldipre_EuropeMemberus-gaap_StatementGeographicalAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli0OthernaNo definition available.No authoritative reference available.falsefalseEurope [Member]110true0pre_DistributionOfGrossPremiumsWrittenLineItemsprefalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalseDistribution Of Gross Premiums Written [Line Items]111false0pre_PercentageDistributionOfGrossPremiumsWrittenprefalsenadurationThis element represents the distribution of gross premiums written based on the location of the underlying risk.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truetruefalse0.430.43falsefalsefalsefalsefalse2truetruefalse0.410.41falsefalsefalsefalsefalse3truetruefalse0.460.46falsefalsefalsefalsefalseOtherus-types:percentItemTypepureThis element represents the distribution of gross premiums written based on the location of the underlying risk.No authoritative reference available.falsefalseDistribution of gross premiums written113false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.partnerre.com/role/disclosuresegmentinformationdetailsotherdetails1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse67falsefalsetruefalse{us-gaap_StatementGeographicalAxis} : Latin America, Caribbean, and Africa [Member] 1/1/2010 - 12/31/2010 FROM_Jan01_2010_TO_Dec31_2010_us-gaap_StatementGeographicalAxis_LatinAmericaCaribbeanAndAfricaMemberhttp://www.sec.gov/CIK0000911421duration2010-01-01T00:00:002010-12-31T00:00:00falsefalseLatin America, Caribbean, and Africa [Member]us-gaap_StatementGeographicalAxisxbrldihttp://xbrl.org/2006/xbrldipre_LatinAmericaCaribbeanAndAfricaMemberus-gaap_StatementGeographicalAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli068falsefalsetruefalse{us-gaap_StatementGeographicalAxis} : Latin America, Caribbean, and Africa [Member] 1/1/2009 - 12/31/2009 FROM_Jan01_2009_TO_Dec31_2009_us-gaap_StatementGeographicalAxis_LatinAmericaCaribbeanAndAfricaMemberhttp://www.sec.gov/CIK0000911421duration2009-01-01T00:00:002009-12-31T00:00:00falsefalseLatin America, Caribbean, and Africa [Member]us-gaap_StatementGeographicalAxisxbrldihttp://xbrl.org/2006/xbrldipre_LatinAmericaCaribbeanAndAfricaMemberus-gaap_StatementGeographicalAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli069falsefalsetruefalse{us-gaap_StatementGeographicalAxis} : Latin America, Caribbean, and Africa [Member] 1/1/2008 - 12/31/2008 FROM_Jan01_2008_TO_Dec31_2008_us-gaap_StatementGeographicalAxis_LatinAmericaCaribbeanAndAfricaMemberhttp://www.sec.gov/CIK0000911421duration2008-01-01T00:00:002008-12-31T00:00:00falsefalseLatin America, Caribbean, and Africa [Member]us-gaap_StatementGeographicalAxisxbrldihttp://xbrl.org/2006/xbrldipre_LatinAmericaCaribbeanAndAfricaMemberus-gaap_StatementGeographicalAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli0OthernaNo definition available.No authoritative reference available.falsefalseLatin America, Caribbean, and Africa [Member]115true0pre_DistributionOfGrossPremiumsWrittenLineItemsprefalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalseDistribution Of Gross Premiums Written [Line Items]116false0pre_PercentageDistributionOfGrossPremiumsWrittenprefalsenadurationThis element represents the distribution of gross premiums written based on the location of the underlying risk.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truetruefalse0.110.11falsefalsefalsefalsefalse2truetruefalse0.10.1falsefalsefalsefalsefalse3truetruefalse0.080.08falsefalsefalsefalsefalseOtherus-types:percentItemTypepureThis element represents the distribution of gross premiums written based on the location of the underlying risk.No authoritative reference available.falsefalseDistribution of gross premiums written118false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.partnerre.com/role/disclosuresegmentinformationdetailsotherdetails1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse70falsefalsetruefalse{us-gaap_StatementGeographicalAxis} : Asia, Australia and New Zealand [Member] 1/1/2010 - 12/31/2010 FROM_Jan01_2010_TO_Dec31_2010_us-gaap_StatementGeographicalAxis_AsiaAustraliaAndNewZealandMemberhttp://www.sec.gov/CIK0000911421duration2010-01-01T00:00:002010-12-31T00:00:00falsefalseAsia, Australia and New Zealand [Member]us-gaap_StatementGeographicalAxisxbrldihttp://xbrl.org/2006/xbrldipre_AsiaAustraliaAndNewZealandMemberus-gaap_StatementGeographicalAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli071falsefalsetruefalse{us-gaap_StatementGeographicalAxis} : Asia, Australia and New Zealand [Member] 1/1/2009 - 12/31/2009 FROM_Jan01_2009_TO_Dec31_2009_us-gaap_StatementGeographicalAxis_AsiaAustraliaAndNewZealandMemberhttp://www.sec.gov/CIK0000911421duration2009-01-01T00:00:002009-12-31T00:00:00falsefalseAsia, Australia and New Zealand [Member]us-gaap_StatementGeographicalAxisxbrldihttp://xbrl.org/2006/xbrldipre_AsiaAustraliaAndNewZealandMemberus-gaap_StatementGeographicalAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli072falsefalsetruefalse{us-gaap_StatementGeographicalAxis} : Asia, Australia and New Zealand [Member] 1/1/2008 - 12/31/2008 FROM_Jan01_2008_TO_Dec31_2008_us-gaap_StatementGeographicalAxis_AsiaAustraliaAndNewZealandMemberhttp://www.sec.gov/CIK0000911421duration2008-01-01T00:00:002008-12-31T00:00:00falsefalseAsia, Australia and New Zealand [Member]us-gaap_StatementGeographicalAxisxbrldihttp://xbrl.org/2006/xbrldipre_AsiaAustraliaAndNewZealandMemberus-gaap_StatementGeographicalAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli0OthernaNo definition available.No authoritative reference available.falsefalseAsia, Australia and New Zealand [Member]120true0pre_DistributionOfGrossPremiumsWrittenLineItemsprefalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalseDistribution Of Gross Premiums Written [Line Items]121false0pre_PercentageDistributionOfGrossPremiumsWrittenprefalsenadurationThis element represents the distribution of gross premiums written based on the location of the underlying risk.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truetruefalse0.10.1falsefalsefalsefalsefalse2truetruefalse0.080.08falsefalsefalsefalsefalse3truetruefalse0.050.05falsefalsefalsefalsefalseOtherus-types:percentItemTypepureThis element represents the distribution of gross premiums written based on the location of the underlying risk.No authoritative reference available.falsefalseDistribution of gross premiums written123false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.partnerre.com/role/disclosuresegmentinformationdetailsotherdetails1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse73falsefalsetruefalse{pre_TopBrokerAxis} : Broker A [Member] 1/1/2010 - 12/31/2010 FROM_Jan01_2010_TO_Dec31_2010_pre_TopBrokerAxis_BrokerAMemberhttp://www.sec.gov/CIK0000911421duration2010-01-01T00:00:002010-12-31T00:00:00falsefalseBroker A [Member]pre_TopBrokerAxisxbrldihttp://xbrl.org/2006/xbrldipre_BrokerAMemberpre_TopBrokerAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli074falsefalsetruefalse{pre_TopBrokerAxis} : Broker A [Member] 1/1/2009 - 12/31/2009 FROM_Jan01_2009_TO_Dec31_2009_pre_TopBrokerAxis_BrokerAMemberhttp://www.sec.gov/CIK0000911421duration2009-01-01T00:00:002009-12-31T00:00:00falsefalseBroker A [Member]pre_TopBrokerAxisxbrldihttp://xbrl.org/2006/xbrldipre_BrokerAMemberpre_TopBrokerAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli075falsefalsetruefalse{pre_TopBrokerAxis} : Broker A [Member] 1/1/2008 - 12/31/2008 FROM_Jan01_2008_TO_Dec31_2008_pre_TopBrokerAxis_BrokerAMemberhttp://www.sec.gov/CIK0000911421duration2008-01-01T00:00:002008-12-31T00:00:00falsefalseBroker A [Member]pre_TopBrokerAxisxbrldihttp://xbrl.org/2006/xbrldipre_BrokerAMemberpre_TopBrokerAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli0OthernaNo definition available.No authoritative reference available.falsefalseBroker A [Member]126true0pre_EconomicDependenceLineItemsprefalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalseEconomic Dependence [Line Items]127false0pre_BrokerPercentageOfGrossWrittenPremiumprefalsenadurationFor a given underwriting year, represents the percentage of gross written premiums that are attributable to brokers that...falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruefalse0.250.25falsefalsefalsefalsefalse2truetruefalse0.250.25falsefalsefalsefalsefalse3truetruefalse0.230.23falsefalsefalsefalsefalseOtherus-types:percentItemTypepureFor a given underwriting year, represents the percentage of gross written premiums that are attributable to brokers that individually account for 10% or more of gross written premium.No authoritative reference available.falsefalseBroker Percentage Of Gross Written Premium128false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.partnerre.com/role/disclosuresegmentinformationdetailsotherdetails1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalse76falsefalsetruefalse{pre_TopBrokerAxis} : Broker B [Member] 1/1/2010 - 12/31/2010 FROM_Jan01_2010_TO_Dec31_2010_pre_TopBrokerAxis_BrokerBMemberhttp://www.sec.gov/CIK0000911421duration2010-01-01T00:00:002010-12-31T00:00:00falsefalseBroker B [Member]pre_TopBrokerAxisxbrldihttp://xbrl.org/2006/xbrldipre_BrokerBMemberpre_TopBrokerAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli077falsefalsetruefalse{pre_TopBrokerAxis} : Broker B [Member] 1/1/2009 - 12/31/2009 FROM_Jan01_2009_TO_Dec31_2009_pre_TopBrokerAxis_BrokerBMemberhttp://www.sec.gov/CIK0000911421duration2009-01-01T00:00:002009-12-31T00:00:00falsefalseBroker B [Member]pre_TopBrokerAxisxbrldihttp://xbrl.org/2006/xbrldipre_BrokerBMemberpre_TopBrokerAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli078falsefalsetruefalse{pre_TopBrokerAxis} : Broker B [Member] 1/1/2008 - 12/31/2008 FROM_Jan01_2008_TO_Dec31_2008_pre_TopBrokerAxis_BrokerBMemberhttp://www.sec.gov/CIK0000911421duration2008-01-01T00:00:002008-12-31T00:00:00falsefalseBroker B [Member]pre_TopBrokerAxisxbrldihttp://xbrl.org/2006/xbrldipre_BrokerBMemberpre_TopBrokerAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli0OthernaNo definition available.No authoritative reference available.falsefalseBroker B [Member]131true0pre_EconomicDependenceLineItemsprefalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalseEconomic Dependence [Line Items]132false0pre_BrokerPercentageOfGrossWrittenPremiumprefalsenadurationFor a given underwriting year, represents the percentage of gross written premiums that are attributable to brokers that...falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruefalse0.210.21falsefalsefalsefalsefalse2truetruefalse0.190.19falsefalsefalsefalsefalse3truetruefalse0.190.19falsefalsefalsefalsefalseOtherus-types:percentItemTypepureFor a given underwriting year, represents the percentage of gross written premiums that are attributable to brokers that individually account for 10% or more of gross written premium.No authoritative reference available.falsefalseBroker Percentage Of Gross Written Premium381Segment Information (Details - Other Details)UnKnownUnKnownUnKnownUnKnowntruetrue