XML 59 R48.htm IDEA: XBRL DOCUMENT
v3.21.1

DERIVATIVE INSTRUMENTS (Schedule of Derivative Instruments) (Details) - USD ($) $ in Thousands | Mar. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Derivative Fair Values on Consolidated Balance Sheet [Line Items] |  |
Derivative asset fair value | $ 3,254 | $ 18,875
Derivative liability fair value | 28,167 | 11,486
Not Designated as Hedging Instruments | Other assets |  |
Derivative Fair Values on Consolidated Balance Sheet [Line Items] |  |
Derivative asset fair value | 3,254 | 18,875
Not Designated as Hedging Instruments | Other liabilities |  |
Derivative Fair Values on Consolidated Balance Sheet [Line Items] |  |
Derivative liability fair value | 28,167 | 11,486
Not Designated as Hedging Instruments | Relating to investment portfolio: | Foreign exchange forward contracts |  |
Derivative Fair Values on Consolidated Balance Sheet [Line Items] |  |
Derivative notional amount | 313,081 | 105,781
Not Designated as Hedging Instruments | Relating to investment portfolio: | Foreign exchange forward contracts | Other assets |  |
Derivative Fair Values on Consolidated Balance Sheet [Line Items] |  |
Derivative asset fair value | 3,026 | 2
Not Designated as Hedging Instruments | Relating to investment portfolio: | Foreign exchange forward contracts | Other liabilities |  |
Derivative Fair Values on Consolidated Balance Sheet [Line Items] |  |
Derivative liability fair value | 198 | 2,364
Not Designated as Hedging Instruments | Relating to underwriting portfolio: | Foreign exchange forward contracts |  |
Derivative Fair Values on Consolidated Balance Sheet [Line Items] |  |
Derivative notional amount | 1,159,353 | 1,197,012
Not Designated as Hedging Instruments | Relating to underwriting portfolio: | Foreign exchange forward contracts | Other assets |  |
Derivative Fair Values on Consolidated Balance Sheet [Line Items] |  |
Derivative asset fair value | 228 | 18,873
Not Designated as Hedging Instruments | Relating to underwriting portfolio: | Foreign exchange forward contracts | Other liabilities |  |
Derivative Fair Values on Consolidated Balance Sheet [Line Items] |  |
Derivative liability fair value | 19,507 | 0
Not Designated as Hedging Instruments | Relating to underwriting portfolio: | Other underwriting-related contracts |  |
Derivative Fair Values on Consolidated Balance Sheet [Line Items] |  |
Derivative notional amount | 75,000 | 75,000
Not Designated as Hedging Instruments | Relating to underwriting portfolio: | Other underwriting-related contracts | Other assets |  |
Derivative Fair Values on Consolidated Balance Sheet [Line Items] |  |
Derivative asset fair value | 0 | 0
Not Designated as Hedging Instruments | Relating to underwriting portfolio: | Other underwriting-related contracts | Other liabilities |  |
Derivative Fair Values on Consolidated Balance Sheet [Line Items] |  |
Derivative liability fair value | $ 8,462 | $ 9,122

X
- Definition Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226008-175313 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=121572278&loc=d3e13433-108611 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 + Details
Name: | us-gaap_DerivativeAssets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=121572278&loc=d3e13433-108611 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226008-175313 + Details
Name: | us-gaap_DerivativeLiabilities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Nominal or face amount used to calculate payment on derivative. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5580258-113959 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5579245-113959 + Details
Name: | us-gaap_DerivativeNotionalAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant

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_DerivativesFairValueLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_HedgingDesignationAxis=us-gaap_NondesignatedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=us-gaap_OtherAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=us-gaap_OtherLiabilitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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: | axs_RelatedPortfolioAxis=axs_UnderwritingPortfolioMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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