XML 62 R51.htm IDEA: XBRL DOCUMENT
v3.7.0.1

DERIVATIVE INSTRUMENTS (Details 3) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2017 | Jun. 30, 2016
Unrealized and Realized Gains (Losses) Recognized in Earnings for Derivatives Not Designated As Hedges [Line Items] |  |  |  |
Unrealized and realized gains (losses) recognized in earnings for derivatives not designated as hedges | $ (23,711) | $ (3,564) | $ (30,819) | $ (3,217)
Investment Portfolio [Member] | Foreign Exchange Forward Contracts [Member] | Net Realized Investment Gains (Losses) [Member] |  |  |  |
Unrealized and Realized Gains (Losses) Recognized in Earnings for Derivatives Not Designated As Hedges [Line Items] |  |  |  |
Unrealized and realized gains (losses) recognized in earnings for derivatives not designated as hedges | (2,347) | 2,404 | (4,719) | (116)
Investment Portfolio [Member] | Interest Rate Swap [Member] | Net Realized Investment Gains (Losses) [Member] |  |  |  |
Unrealized and Realized Gains (Losses) Recognized in Earnings for Derivatives Not Designated As Hedges [Line Items] |  |  |  |
Unrealized and realized gains (losses) recognized in earnings for derivatives not designated as hedges | (3,620) | 0 | (3,181) | 0
Underwriting Portfolio [Member] | Foreign Exchange Forward Contracts [Member] | Foreign Exchange Gains (Losses) [Member] |  |  |  |
Unrealized and Realized Gains (Losses) Recognized in Earnings for Derivatives Not Designated As Hedges [Line Items] |  |  |  |
Unrealized and realized gains (losses) recognized in earnings for derivatives not designated as hedges | (16,385) | (5,876) | (13,628) | (2,776)
Underwriting Portfolio [Member] | Weather Related Derivative [Member] | Other Insurance Related Income [Member] |  |  |  |
Unrealized and Realized Gains (Losses) Recognized in Earnings for Derivatives Not Designated As Hedges [Line Items] |  |  |  |
Unrealized and realized gains (losses) recognized in earnings for derivatives not designated as hedges | (1,697) | 451 | (9,629) | (24)
Underwriting Portfolio [Member] | Commodity Contract [Member] | Other Insurance Related Income [Member] |  |  |  |
Unrealized and Realized Gains (Losses) Recognized in Earnings for Derivatives Not Designated As Hedges [Line Items] |  |  |  |
Unrealized and realized gains (losses) recognized in earnings for derivatives not designated as hedges | 0 | (543) | 0 | (301)
Other Underwriting-related Contracts [Member] | Commodity Contract [Member] | Other Insurance Related Income [Member] |  |  |  |
Unrealized and Realized Gains (Losses) Recognized in Earnings for Derivatives Not Designated As Hedges [Line Items] |  |  |  |
Unrealized and realized gains (losses) recognized in earnings for derivatives not designated as hedges | $ 338 | $ 0 | $ 338 | $ 0

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_DerivativeInstrumentsGainLossLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624171-113959 + Details
Name: | us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | axs_RelatedPortfolioAxis=axs_InvestmentPortfolioMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_ForeignExchangeForwardMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=us-gaap_GainLossOnInvestmentsMember1
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_InterestRateSwapMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | axs_RelatedPortfolioAxis=axs_UnderwritingPortfolioMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=us-gaap_ForeignCurrencyGainLossMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=axs_WeatherRelatedDerivativeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=us-gaap_OtherOperatingIncomeExpenseMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_CommodityContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | axs_RelatedPortfolioAxis=axs_OtherUnderwritingRelatedDerivativesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |