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Third Party Reinsurance (Sirius Group) (Details) |  |  |  |  | 12 Months Ended |  | 12 Months Ended | 2 Months Ended | 12 Months Ended | 0 Months Ended | 12 Months Ended
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Dec. 31, 2014 USD ($) | Dec. 31, 2013 USD ($) | Dec. 31, 2012 USD ($) | Dec. 31, 2011 USD ($) | Dec. 31, 2014 Sirius Group USD ($) | Dec. 31, 2014 OneBeacon USD ($) | Dec. 31, 2014 Faculative and Direct Property Portfolios Sirius Group USD ($) | Feb. 28, 2014 Faculative and Direct Property Portfolios Lloyds Syndicate 1945 [Member] USD ($) | Dec. 31, 2014 Faculative and Direct U.S. Catastophe Exposed Business Lloyds Syndicate 1945 [Member] USD ($) | Dec. 31, 2014 Non U.S and Non Japan Earthquake Related Exposure Sirius Group USD ($) | Dec. 31, 2014 Non U.S and Non Japan Earth Quake Related Exposure Partial Coverage Sirius Group USD ($) | Dec. 31, 2014 Aviation Reinsurance Sirius Group USD ($) | Dec. 31, 2014 Aviation Reinsurance Minimum Sirius Group USD ($) | Dec. 31, 2014 Aviation Reinsurance Maximum Sirius Group USD ($) | Dec. 31, 2014 Marine Yacht Portfolio, London Branch and Syndicate 1945 Sirius Group USD ($) | Dec. 31, 2014 Energy & Marine [Member] Sirius Group USD ($) | Dec. 31, 2014 Quota Share Reinsurance [Member] Sirius Group EUR (€) | Jan. 01, 2015 Subsequent Event Sirius Group | Jan. 01, 2015 Subsequent Event Direct Contingency [Member] Sirius Group USD ($) | Dec. 31, 2014 Hamburg and Stockholm [Member] Faculative and Direct Property Portfolios Lloyds Syndicate 1945 [Member] USD ($) | Dec. 31, 2014 Euro Member Countries, Euro Accident and Health Sirius Group EUR (€) | Dec. 31, 2014 United States of America, Dollars Accident and Health Sirius Group USD ($) | Dec. 31, 2014 Expiration March 2015 [Member] Wind and flood [Member] Industry Loss Warranty [Member] Minimum USD ($) | Dec. 31, 2014 Expiration March 2015 [Member] Wind and flood [Member] Industry Loss Warranty [Member] Maximum USD ($) | Dec. 31, 2014 Expiration December 2015 [Member] All Natural Perils [Member] Industry Loss Warranty [Member] USD ($) | Dec. 31, 2014 Expiration December 2015 [Member] Wind and earthquake [Member] Industry Loss Warranty [Member] USD ($) | Dec. 31, 2014 Expiration December 2015 [Member] Wind and earthquake [Member] Industry Loss Warranty [Member] Minimum USD ($) | Dec. 31, 2014 Expiration December 2015 [Member] Wind and earthquake [Member] Industry Loss Warranty [Member] Maximum USD ($) | Dec. 31, 2014 Expiration March 2016 [Member] Wind and earthquake [Member] Industry Loss Warranty [Member] USD ($) | Dec. 31, 2014 Expiration March 2016 [Member] Wind and earthquake [Member] Industry Loss Warranty [Member] Minimum USD ($) | Dec. 31, 2014 Expiration March 2016 [Member] Wind and earthquake [Member] Industry Loss Warranty [Member] Maximum USD ($) | Dec. 31, 2014 Expiration June 2015 [Member] Wind and flood [Member] Industry Loss Warranty [Member] USD ($)
Reinsurance Retention Policy [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of Business Ceded |  |  |  |  | 20.00%wtm_PercentageofBusinessCeded / us-gaap_StatementBusinessSegmentsAxis = wtm_SiriusGroupMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reinsurance Program Limit Per Cedant |  |  |  |  | $ 15,000,000 wtm_ReinsuranceProgramLimitPerCedant / us-gaap_StatementBusinessSegmentsAxis = wtm_SiriusGroupMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reinsurance retention policy, amount retained |  |  |  |  |  |  | 5,000,000 us-gaap_ReinsuranceRetentionPolicyAmountRetained / us-gaap_ReinsurancePolicyTypeAxis = wtm_FaculativeandDirectPropertyPortfoliosMember / us-gaap_StatementBusinessSegmentsAxis = wtm_SiriusGroupMember | 2,500,000 us-gaap_ReinsuranceRetentionPolicyAmountRetained / dei_LegalEntityAxis = wtm_LloydsSyndicate1945Member / us-gaap_ReinsurancePolicyTypeAxis = wtm_FaculativeandDirectPropertyPortfoliosMember | 5,000,000 us-gaap_ReinsuranceRetentionPolicyAmountRetained / dei_LegalEntityAxis = wtm_LloydsSyndicate1945Member / us-gaap_ReinsurancePolicyTypeAxis = wtm_FaculativeandDirectU.S.CatastopheExposedBusinessMember | 35,000,000 us-gaap_ReinsuranceRetentionPolicyAmountRetained / us-gaap_ReinsurancePolicyTypeAxis = wtm_NonU.SandNonJapanEarthquakeRelatedExposureMember / us-gaap_StatementBusinessSegmentsAxis = wtm_SiriusGroupMember | 75,000,000 us-gaap_ReinsuranceRetentionPolicyAmountRetained / us-gaap_ReinsurancePolicyTypeAxis = wtm_NonU.SandNonJapanEarthQuakeRelatedExposurePartialCoverageMember / us-gaap_StatementBusinessSegmentsAxis = wtm_SiriusGroupMember |  |  |  | 250,000 us-gaap_ReinsuranceRetentionPolicyAmountRetained / us-gaap_ReinsurancePolicyTypeAxis = wtm_MarineYachtPortfolioLondonBranchandSyndicate1945Member / us-gaap_StatementBusinessSegmentsAxis = wtm_SiriusGroupMember | 1,500,000 us-gaap_ReinsuranceRetentionPolicyAmountRetained / us-gaap_ReinsurancePolicyTypeAxis = wtm_EnergyMarineMember / us-gaap_StatementBusinessSegmentsAxis = wtm_SiriusGroupMember |  |  | 10,000,000 us-gaap_ReinsuranceRetentionPolicyAmountRetained / us-gaap_ReinsurancePolicyTypeAxis = wtm_DirectContingencyMember / us-gaap_StatementBusinessSegmentsAxis = wtm_SiriusGroupMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember | 20,000,000 us-gaap_ReinsuranceRetentionPolicyAmountRetained / dei_LegalEntityAxis = wtm_LloydsSyndicate1945Member / us-gaap_ReinsurancePolicyTypeAxis = wtm_FaculativeandDirectPropertyPortfoliosMember / us-gaap_StatementGeographicalAxis = wtm_HamburgandStockholmMember | 5,000,000 us-gaap_ReinsuranceRetentionPolicyAmountRetained / us-gaap_CurrencyAxis = currency_EUR / us-gaap_ReinsurancePolicyTypeAxis = wtm_AccidentAndHealthMember / us-gaap_StatementBusinessSegmentsAxis = wtm_SiriusGroupMember | 6,000,000 us-gaap_ReinsuranceRetentionPolicyAmountRetained / us-gaap_CurrencyAxis = currency_USD / us-gaap_ReinsurancePolicyTypeAxis = wtm_AccidentAndHealthMember / us-gaap_StatementBusinessSegmentsAxis = wtm_SiriusGroupMember | 5,000,000,000 us-gaap_ReinsuranceRetentionPolicyAmountRetained / wtm_ExpirationPeriodAxis = wtm_ExpirationMarch2015Member / us-gaap_RangeAxis = us-gaap_MinimumMember / wtm_ReinsuranceContractByNatureAxis = wtm_WindandfloodMember / us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis = wtm_IndustryLossWarrantyMember | 7,500,000,000 us-gaap_ReinsuranceRetentionPolicyAmountRetained / wtm_ExpirationPeriodAxis = wtm_ExpirationMarch2015Member / us-gaap_RangeAxis = us-gaap_MaximumMember / wtm_ReinsuranceContractByNatureAxis = wtm_WindandfloodMember / us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis = wtm_IndustryLossWarrantyMember | 15,000,000,000 us-gaap_ReinsuranceRetentionPolicyAmountRetained / wtm_ExpirationPeriodAxis = wtm_ExpirationDecember2015Member / wtm_ReinsuranceContractByNatureAxis = wtm_AllNaturalPerilsMember / us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis = wtm_IndustryLossWarrantyMember |  | 5,000,000,000 us-gaap_ReinsuranceRetentionPolicyAmountRetained / wtm_ExpirationPeriodAxis = wtm_ExpirationDecember2015Member / us-gaap_RangeAxis = us-gaap_MinimumMember / wtm_ReinsuranceContractByNatureAxis = wtm_WindandearthquakeMember / us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis = wtm_IndustryLossWarrantyMember | 10,000,000,000 us-gaap_ReinsuranceRetentionPolicyAmountRetained / wtm_ExpirationPeriodAxis = wtm_ExpirationDecember2015Member / us-gaap_RangeAxis = us-gaap_MaximumMember / wtm_ReinsuranceContractByNatureAxis = wtm_WindandearthquakeMember / us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis = wtm_IndustryLossWarrantyMember |  | 5,000,000,000 us-gaap_ReinsuranceRetentionPolicyAmountRetained / wtm_ExpirationPeriodAxis = wtm_ExpirationMarch2016Member / us-gaap_RangeAxis = us-gaap_MinimumMember / wtm_ReinsuranceContractByNatureAxis = wtm_WindandearthquakeMember / us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis = wtm_IndustryLossWarrantyMember | 7,500,000,000 us-gaap_ReinsuranceRetentionPolicyAmountRetained / wtm_ExpirationPeriodAxis = wtm_ExpirationMarch2016Member / us-gaap_RangeAxis = us-gaap_MaximumMember / wtm_ReinsuranceContractByNatureAxis = wtm_WindandearthquakeMember / us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis = wtm_IndustryLossWarrantyMember | 20,000,000,000 us-gaap_ReinsuranceRetentionPolicyAmountRetained / wtm_ExpirationPeriodAxis = wtm_ExpirationJune2015Member / wtm_ReinsuranceContractByNatureAxis = wtm_WindandfloodMember / us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis = wtm_IndustryLossWarrantyMember
Insurance Market Loss |  |  |  |  |  |  |  |  |  |  |  |  | 250,000,000 wtm_InsuranceMarketLoss / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_ReinsurancePolicyTypeAxis = wtm_AviationReinsuranceMember / us-gaap_StatementBusinessSegmentsAxis = wtm_SiriusGroupMember | 2,000,000,000 wtm_InsuranceMarketLoss / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_ReinsurancePolicyTypeAxis = wtm_AviationReinsuranceMember / us-gaap_StatementBusinessSegmentsAxis = wtm_SiriusGroupMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reinsurance retention policy, excess retention, amount reinsured |  |  |  |  |  |  | 15,000,000 us-gaap_ReinsuranceRetentionPolicyExcessRetentionAmountReinsured / us-gaap_ReinsurancePolicyTypeAxis = wtm_FaculativeandDirectPropertyPortfoliosMember / us-gaap_StatementBusinessSegmentsAxis = wtm_SiriusGroupMember | 2,500,000 us-gaap_ReinsuranceRetentionPolicyExcessRetentionAmountReinsured / dei_LegalEntityAxis = wtm_LloydsSyndicate1945Member / us-gaap_ReinsurancePolicyTypeAxis = wtm_FaculativeandDirectPropertyPortfoliosMember | 5,000,000 us-gaap_ReinsuranceRetentionPolicyExcessRetentionAmountReinsured / dei_LegalEntityAxis = wtm_LloydsSyndicate1945Member / us-gaap_ReinsurancePolicyTypeAxis = wtm_FaculativeandDirectU.S.CatastopheExposedBusinessMember | 40,000,000 us-gaap_ReinsuranceRetentionPolicyExcessRetentionAmountReinsured / us-gaap_ReinsurancePolicyTypeAxis = wtm_NonU.SandNonJapanEarthquakeRelatedExposureMember / us-gaap_StatementBusinessSegmentsAxis = wtm_SiriusGroupMember | 17,500,000 us-gaap_ReinsuranceRetentionPolicyExcessRetentionAmountReinsured / us-gaap_ReinsurancePolicyTypeAxis = wtm_NonU.SandNonJapanEarthQuakeRelatedExposurePartialCoverageMember / us-gaap_StatementBusinessSegmentsAxis = wtm_SiriusGroupMember | 29,500,000 us-gaap_ReinsuranceRetentionPolicyExcessRetentionAmountReinsured / us-gaap_ReinsurancePolicyTypeAxis = wtm_AviationReinsuranceMember / us-gaap_StatementBusinessSegmentsAxis = wtm_SiriusGroupMember |  |  | 14,750,000 us-gaap_ReinsuranceRetentionPolicyExcessRetentionAmountReinsured / us-gaap_ReinsurancePolicyTypeAxis = wtm_MarineYachtPortfolioLondonBranchandSyndicate1945Member / us-gaap_StatementBusinessSegmentsAxis = wtm_SiriusGroupMember | 16,000,000 us-gaap_ReinsuranceRetentionPolicyExcessRetentionAmountReinsured / us-gaap_ReinsurancePolicyTypeAxis = wtm_EnergyMarineMember / us-gaap_StatementBusinessSegmentsAxis = wtm_SiriusGroupMember | 1,000,000 us-gaap_ReinsuranceRetentionPolicyExcessRetentionAmountReinsured / us-gaap_ReinsurancePolicyTypeAxis = wtm_QuotaShareReinsuranceMember / us-gaap_StatementBusinessSegmentsAxis = wtm_SiriusGroupMember |  |  | 15,000,000 us-gaap_ReinsuranceRetentionPolicyExcessRetentionAmountReinsured / dei_LegalEntityAxis = wtm_LloydsSyndicate1945Member / us-gaap_ReinsurancePolicyTypeAxis = wtm_FaculativeandDirectPropertyPortfoliosMember / us-gaap_StatementGeographicalAxis = wtm_HamburgandStockholmMember | 10,000,000 us-gaap_ReinsuranceRetentionPolicyExcessRetentionAmountReinsured / us-gaap_CurrencyAxis = currency_EUR / us-gaap_ReinsurancePolicyTypeAxis = wtm_AccidentAndHealthMember / us-gaap_StatementBusinessSegmentsAxis = wtm_SiriusGroupMember | 12,000,000 us-gaap_ReinsuranceRetentionPolicyExcessRetentionAmountReinsured / us-gaap_CurrencyAxis = currency_USD / us-gaap_ReinsurancePolicyTypeAxis = wtm_AccidentAndHealthMember / us-gaap_StatementBusinessSegmentsAxis = wtm_SiriusGroupMember | 5,000,000 us-gaap_ReinsuranceRetentionPolicyExcessRetentionAmountReinsured / wtm_ExpirationPeriodAxis = wtm_ExpirationMarch2015Member / us-gaap_RangeAxis = us-gaap_MinimumMember / wtm_ReinsuranceContractByNatureAxis = wtm_WindandfloodMember / us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis = wtm_IndustryLossWarrantyMember | 5,000,000 us-gaap_ReinsuranceRetentionPolicyExcessRetentionAmountReinsured / wtm_ExpirationPeriodAxis = wtm_ExpirationMarch2015Member / us-gaap_RangeAxis = us-gaap_MaximumMember / wtm_ReinsuranceContractByNatureAxis = wtm_WindandfloodMember / us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis = wtm_IndustryLossWarrantyMember | 15,000,000 us-gaap_ReinsuranceRetentionPolicyExcessRetentionAmountReinsured / wtm_ExpirationPeriodAxis = wtm_ExpirationDecember2015Member / wtm_ReinsuranceContractByNatureAxis = wtm_AllNaturalPerilsMember / us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis = wtm_IndustryLossWarrantyMember | 30,000,000 us-gaap_ReinsuranceRetentionPolicyExcessRetentionAmountReinsured / wtm_ExpirationPeriodAxis = wtm_ExpirationDecember2015Member / wtm_ReinsuranceContractByNatureAxis = wtm_WindandearthquakeMember / us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis = wtm_IndustryLossWarrantyMember |  |  | 7,500,000 us-gaap_ReinsuranceRetentionPolicyExcessRetentionAmountReinsured / wtm_ExpirationPeriodAxis = wtm_ExpirationMarch2016Member / wtm_ReinsuranceContractByNatureAxis = wtm_WindandearthquakeMember / us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis = wtm_IndustryLossWarrantyMember |  |  | 5,000,000 us-gaap_ReinsuranceRetentionPolicyExcessRetentionAmountReinsured / wtm_ExpirationPeriodAxis = wtm_ExpirationJune2015Member / wtm_ReinsuranceContractByNatureAxis = wtm_WindandfloodMember / us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis = wtm_IndustryLossWarrantyMember
Percentage of quota share reinsurance agreement |  |  |  |  |  |  |  |  |  |  |  | 15.00%wtm_PercentageOfQuotaShareReinsuranceAgreement / us-gaap_ReinsurancePolicyTypeAxis = wtm_AviationReinsuranceMember / us-gaap_StatementBusinessSegmentsAxis = wtm_SiriusGroupMember |  |  |  |  |  |  | 20.00%wtm_PercentageOfQuotaShareReinsuranceAgreement / us-gaap_ReinsurancePolicyTypeAxis = wtm_DirectContingencyMember / us-gaap_StatementBusinessSegmentsAxis = wtm_SiriusGroupMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |  |  |  |  |  |  |  |  |  |  |
Aviation reinsurance program cover in first event industry loss warranties |  |  |  |  |  |  |  |  |  |  |  |  | 350,000,000 wtm_AviationReinsuranceProgramCoverInFirstEventIndustryLossWarranties / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_ReinsurancePolicyTypeAxis = wtm_AviationReinsuranceMember / us-gaap_StatementBusinessSegmentsAxis = wtm_SiriusGroupMember | 1,000,000,000 wtm_AviationReinsuranceProgramCoverInFirstEventIndustryLossWarranties / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_ReinsurancePolicyTypeAxis = wtm_AviationReinsuranceMember / us-gaap_StatementBusinessSegmentsAxis = wtm_SiriusGroupMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of trade credit business ceded under quota share retrocession |  |  |  |  | 20.00%wtm_PercentageOfTradeCreditBusinessCededUnderQuotaShareRetrocession / us-gaap_StatementBusinessSegmentsAxis = wtm_SiriusGroupMember |  |  |  |  |  |  |  |  |  |  |  |  | 10.00%wtm_PercentageOfTradeCreditBusinessCededUnderQuotaShareRetrocession / us-gaap_StatementBusinessSegmentsAxis = wtm_SiriusGroupMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of bond business ceded under renewed quota share retrocession |  |  |  |  | 50.00%wtm_PercentageOfBondBusinessCededUnderRenewedQuotaShareRetrocession / us-gaap_StatementBusinessSegmentsAxis = wtm_SiriusGroupMember |  |  |  |  |  |  |  |  |  |  |  |  | 25.00%wtm_PercentageOfBondBusinessCededUnderRenewedQuotaShareRetrocession / us-gaap_StatementBusinessSegmentsAxis = wtm_SiriusGroupMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |  |  |  |  |  |  |  |  |  |  |  |
Direct contingency business ceded |  |  |  |  | 30.00%wtm_DirectContingencyBusinessCeded / us-gaap_StatementBusinessSegmentsAxis = wtm_SiriusGroupMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of property catastrophe reinsurance treaty reinstatement premiums |  |  |  |  | 100.00%wtm_PercentageOfPropertyCatastropheReinsuranceTreatyReinstatementPremiums / us-gaap_StatementBusinessSegmentsAxis = wtm_SiriusGroupMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reinsurance recoverable on paid losses |  |  |  |  | 11,400,000 us-gaap_ReinsuranceReceivablesPaidLossesRecoverable / us-gaap_StatementBusinessSegmentsAxis = wtm_SiriusGroupMember | 12,200,000 us-gaap_ReinsuranceReceivablesPaidLossesRecoverable / dei_LegalEntityAxis = wtm_OnebeaconMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reinsurance recoverable on unpaid losses | $ 483,900,000 us-gaap_ReinsuranceReceivablesIncurredButNotReportedClaims | $ 428,100,000 us-gaap_ReinsuranceReceivablesIncurredButNotReportedClaims | $ 429,100,000 us-gaap_ReinsuranceReceivablesIncurredButNotReportedClaims | $ 2,507,300,000 us-gaap_ReinsuranceReceivablesIncurredButNotReportedClaims | $ 322,200,000 us-gaap_ReinsuranceReceivablesIncurredButNotReportedClaims / us-gaap_StatementBusinessSegmentsAxis = wtm_SiriusGroupMember | $ 161,600,000 us-gaap_ReinsuranceReceivablesIncurredButNotReportedClaims / dei_LegalEntityAxis = wtm_OnebeaconMember |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

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- Definition Estimated amount after valuation allowance of reinsurance recoverables, due from reinsurers for incurred claims not yet reported, and claims settlement expenses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 310 -Section 45 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6485522&loc=d3e21412-158489 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 310 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6485522&loc=d3e21409-158489 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 6 -Article 7 + Details
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- Definition Amount after valuation allowance currently billed or billable under reinsurance contracts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 310 -Section 45 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6485522&loc=d3e21412-158489 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 310 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6485522&loc=d3e21409-158489 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.6) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 6 -Article 7 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 605 -Section 50 -Paragraph 1 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=6486672&loc=d3e27261-158547 + Details
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- Definition Stated amount that is the upper retention limit per entity policy. + References No definition available. + Details
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- Definition Amount of risk reinsured in excess of stated retention per company policy. + References No definition available. + Details
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- Details
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- Definition Represents the cover which the entity has purchased in case of first event industry loss warranties under the aviation reinsurance program. + References No definition available. + Details
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- Definition Direct Contingency Business Ceded + References No definition available. + Details
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- Definition Insurance Market Loss + References No definition available. + Details
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- Definition Represents the percentage of ceded bond business under a renewed quota share retrocession. + References No definition available. + Details
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- Definition Percentage of Business Ceded + References No definition available. + Details
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- Definition Percentage of Property Catastrophe Reinsurance Treaty Reinstatement Premiums + References No definition available. + Details
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- Definition Represents the percentage ceded under quota share reinsurance agreement. + References No definition available. + Details
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- Definition Represents the percentage of ceded trade credit business under a quota share retrocession. + References No definition available. + Details
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- Definition Reinsurance Program Limit Per Cedant + References No definition available. + Details
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