XML 46 R77.htm IDEA: XBRL DOCUMENT
v2.4.1.9

RESERVE FOR LOSSES AND LOSS EXPENSES (DETAILS 4) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Additional Information Related to Net Incurred Losses [Line Items] |  |  |
Current year net loss and loss expenses | $ 2,445,666 us-gaap_SupplementalInformationForPropertyCasualtyInsuranceUnderwritersCurrentYearClaimsAndClaimsAdjustmentExpense | $ 2,353,631 us-gaap_SupplementalInformationForPropertyCasualtyInsuranceUnderwritersCurrentYearClaimsAndClaimsAdjustmentExpense | $ 2,340,868 us-gaap_SupplementalInformationForPropertyCasualtyInsuranceUnderwritersCurrentYearClaimsAndClaimsAdjustmentExpense
Net favorable (adverse) prior year reserve development | 258,944 us-gaap_SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPriorYearClaimsAndClaimsAdjustmentExpense | 219,436 us-gaap_SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPriorYearClaimsAndClaimsAdjustmentExpense | 244,840 us-gaap_SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPriorYearClaimsAndClaimsAdjustmentExpense
Short Tail Lines Insurance and Reinsurance Business [Member] |  |  |
Additional Information Related to Net Incurred Losses [Line Items] |  |  |
Net favorable (adverse) prior year reserve development | 207,000 us-gaap_SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPriorYearClaimsAndClaimsAdjustmentExpense / us-gaap_NoncatastrophicEventAxis = axs_ShortTailReservingClassInsuranceAndReinsuranceBusinessMember | 162,000 us-gaap_SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPriorYearClaimsAndClaimsAdjustmentExpense / us-gaap_NoncatastrophicEventAxis = axs_ShortTailReservingClassInsuranceAndReinsuranceBusinessMember | 186,000 us-gaap_SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPriorYearClaimsAndClaimsAdjustmentExpense / us-gaap_NoncatastrophicEventAxis = axs_ShortTailReservingClassInsuranceAndReinsuranceBusinessMember
Professional Lines Insurance and Reinsurance Business [Member] |  |  |
Additional Information Related to Net Incurred Losses [Line Items] |  |  |
Net favorable (adverse) prior year reserve development | 32,000 us-gaap_SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPriorYearClaimsAndClaimsAdjustmentExpense / us-gaap_NoncatastrophicEventAxis = axs_ProfessionalLinesInsuranceAndReinsuranceBusinessMember | (29,000)us-gaap_SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPriorYearClaimsAndClaimsAdjustmentExpense / us-gaap_NoncatastrophicEventAxis = axs_ProfessionalLinesInsuranceAndReinsuranceBusinessMember | 54,000 us-gaap_SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPriorYearClaimsAndClaimsAdjustmentExpense / us-gaap_NoncatastrophicEventAxis = axs_ProfessionalLinesInsuranceAndReinsuranceBusinessMember
Professional Lines Insurance Business [Member] |  |  |
Additional Information Related to Net Incurred Losses [Line Items] |  |  |
Net favorable (adverse) prior year reserve development |  | (51,000)us-gaap_SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPriorYearClaimsAndClaimsAdjustmentExpense / us-gaap_NoncatastrophicEventAxis = axs_ProfessionalLinesInsuranceBusinessMember |
Liability Reinsurance Business [Member] |  |  |
Additional Information Related to Net Incurred Losses [Line Items] |  |  |
Net favorable (adverse) prior year reserve development | 21,000 us-gaap_SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPriorYearClaimsAndClaimsAdjustmentExpense / us-gaap_NoncatastrophicEventAxis = axs_LiabilityReinsuranceBusinessMember | 85,000 us-gaap_SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPriorYearClaimsAndClaimsAdjustmentExpense / us-gaap_NoncatastrophicEventAxis = axs_LiabilityReinsuranceBusinessMember |
Liability Insurance Business [Member] |  |  |
Additional Information Related to Net Incurred Losses [Line Items] |  |  |
Net favorable (adverse) prior year reserve development | (23,000)us-gaap_SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPriorYearClaimsAndClaimsAdjustmentExpense / us-gaap_NoncatastrophicEventAxis = axs_LiabilityInsuranceBusinessMember | (24,000)us-gaap_SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPriorYearClaimsAndClaimsAdjustmentExpense / us-gaap_NoncatastrophicEventAxis = axs_LiabilityInsuranceBusinessMember |
Motor Business [Member] |  |  |
Additional Information Related to Net Incurred Losses [Line Items] |  |  |
Net favorable (adverse) prior year reserve development | 19,000 us-gaap_SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPriorYearClaimsAndClaimsAdjustmentExpense / us-gaap_NoncatastrophicEventAxis = axs_MotorMember |  |
Catastrophe and Weather-related Events [Member] |  |  |
Additional Information Related to Net Incurred Losses [Line Items] |  |  |
Current year net loss and loss expenses | $ 93,000 us-gaap_SupplementalInformationForPropertyCasualtyInsuranceUnderwritersCurrentYearClaimsAndClaimsAdjustmentExpense / us-gaap_LiabilityForCatastropheClaimsByCatastrophicEventAxis = us-gaap_CatastropheMember | $ 201,000 us-gaap_SupplementalInformationForPropertyCasualtyInsuranceUnderwritersCurrentYearClaimsAndClaimsAdjustmentExpense / us-gaap_LiabilityForCatastropheClaimsByCatastrophicEventAxis = us-gaap_CatastropheMember | $ 438,000 us-gaap_SupplementalInformationForPropertyCasualtyInsuranceUnderwritersCurrentYearClaimsAndClaimsAdjustmentExpense / us-gaap_LiabilityForCatastropheClaimsByCatastrophicEventAxis = us-gaap_CatastropheMember

X
- Details
Name: | us-gaap_CausesOfIncreaseDecreaseInLiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of expense for claims incurred in the current reporting period and related claims settlement costs. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 235 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-18) -URI http://asc.fasb.org/extlink&oid=34713774&loc=d3e575016-122915 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 18 -Article 12 + Details
Name: | us-gaap_SupplementalInformationForPropertyCasualtyInsuranceUnderwritersCurrentYearClaimsAndClaimsAdjustmentExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of expense for claims incurred in prior reporting periods and related claims settlement costs. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 235 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-18) -URI http://asc.fasb.org/extlink&oid=34713774&loc=d3e575016-122915 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 18 -Article 12 + Details
Name: | us-gaap_SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPriorYearClaimsAndClaimsAdjustmentExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_LiabilityForCatastropheClaimsByCatastrophicEventAxis=us-gaap_CatastropheMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_NoncatastrophicEventAxis=axs_LiabilityInsuranceBusinessMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_NoncatastrophicEventAxis=axs_LiabilityReinsuranceBusinessMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_NoncatastrophicEventAxis=axs_MotorMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_NoncatastrophicEventAxis=axs_ProfessionalLinesInsuranceAndReinsuranceBusinessMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_NoncatastrophicEventAxis=axs_ProfessionalLinesInsuranceBusinessMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_NoncatastrophicEventAxis=axs_ShortTailReservingClassInsuranceAndReinsuranceBusinessMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |