XML 78 R96.htm IDEA: XBRL DOCUMENT
v2.4.1.9

RELATED PARTY TRANSACTIONS (DETAILS) (USD $) In Millions, unless otherwise specified | 12 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Dec. 31, 2014 | Jun. 30, 2012 security | Dec. 31, 2013 | Dec. 31, 2012
Related Party Transaction [Line Items] |  |  |  |
Unfunded commitments related to other investments | $ 123 us-gaap_FairValueInvestmentsEntitiesThatCalculateNetAssetValuePerShareUnfundedCommittments |  | $ 168 us-gaap_FairValueInvestmentsEntitiesThatCalculateNetAssetValuePerShareUnfundedCommittments |
Percentage ownership by related parties | 45.00%axs_OrdinarySharesOutstandingHeldByRelatedPartiesPercentage |  |  |
Blackstone Debt Advisors L.P. [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Number of CLO investments where related party is collateral manager |  | 4 axs_RelatedPartyTransactionsNumberOfCollateralizedLoanObligationInvestmentsRelatedPartyCollateralManager / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = axs_BlackstoneDebtAdvisorsMember |  |
Blackstone Alternative Asset Management L.P. [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Number of hedge fund investments where related party is manager |  | 2 axs_RelatedPartyTransactionNumberOfHedgeFundInvestmentsRelatedPartyManager / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = axs_BlackstoneAlternativeAssetManagementMember |  |
Blackstone Group [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Fees paid to related party |  | 1 us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = axs_BlackstoneGroupMember |  |
Stone Point Group [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Fees paid to related party | 4 us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = axs_StonePointGroupMember |  | 2 us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = axs_StonePointGroupMember | 2 us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = axs_StonePointGroupMember
NXT Capital [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Fees paid to related party | 1 us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = axs_NXTCapitalMember |  |  |
Unfunded commitments related to other investments | 30 us-gaap_FairValueInvestmentsEntitiesThatCalculateNetAssetValuePerShareUnfundedCommittments / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = axs_NXTCapitalMember |  |  |
Chairman [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Fees paid to related party | $ 1 us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_BoardOfDirectorsChairmanMember |  | $ 1 us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_BoardOfDirectorsChairmanMember | $ 0 us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_BoardOfDirectorsChairmanMember

X
- Definition Percentage of NXT Capital's ordinary shares outstanding held by Stone Point Capital. + References No definition available. + Details
Name: | axs_OrdinarySharesOutstandingHeldByRelatedPartiesPercentage
Namespace Prefix: | axs_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of hedge fund investments where the fund is managed by a related party. + References No definition available. + Details
Name: | axs_RelatedPartyTransactionNumberOfHedgeFundInvestmentsRelatedPartyManager
Namespace Prefix: | axs_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of collateralized loan obligation investments where the collateral manager is a related party. + References No definition available. + Details
Name: | axs_RelatedPartyTransactionsNumberOfCollateralizedLoanObligationInvestmentsRelatedPartyCollateralManager
Namespace Prefix: | axs_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of unfunded commitments for which the entity is obligated, to those certain investments for which net asset value per share is calculated (including by unit, membership interest, or other equity (ownership interest) unit measure) (alternative investments). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 6A -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=36462937&loc=SL6742756-110258 + Details
Name: | us-gaap_FairValueInvestmentsEntitiesThatCalculateNetAssetValuePerShareUnfundedCommittments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Expenses recognized resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864 + Details
Name: | us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=axs_BlackstoneAlternativeAssetManagementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=axs_BlackstoneDebtAdvisorsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=axs_BlackstoneGroupMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=axs_NXTCapitalMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=axs_StonePointGroupMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=us-gaap_BoardOfDirectorsChairmanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |