XML 65 R54.htm IDEA: XBRL DOCUMENT
v3.5.0.2

SHAREHOLDERS' EQUITY (DETAILS 2) - USD ($) $ / shares in Units, $ in Thousands |  | 1 Months Ended | 3 Months Ended | 5 Months Ended | 6 Months Ended
--- | --- | --- | --- | --- | ---
Jan. 15, 2016 | Aug. 30, 2015 | Jun. 30, 2016 | Sep. 30, 2015 | Jun. 30, 2015 | Jan. 15, 2016 | Jun. 30, 2016 | Jun. 30, 2015
August 17, 2015 ASR agreement [Member] |  |  |  |  |  |  |  |
Treasury Shares [Line Items] |  |  |  |  |  |  |  |
Total shares | 1,358,380.00 | 4,149,378 |  | 4,149,378 |  | 5,507,758 | 1,358,380 |
Total cost |  | $ 300,000 |  |  |  |  |  |
Average price per share (in usd per share) |  |  |  |  |  | $ 54.47 |  |
Common Stock [Member] |  |  |  |  |  |  |  |
Treasury Shares [Line Items] |  |  |  |  |  |  |  |
Total shares |  |  | 2,337,000 |  | 60,000 |  | 6,247,000 | 350,000
Total cost |  |  | $ 127,039 |  | $ 3,158 |  | $ 323,050 | $ 17,929
Average price per share (in usd per share) |  |  | $ 54.36 |  | $ 52.51 |  | $ 51.71 | $ 51.22
Common Stock [Member] | In the Open Market [Member] |  |  |  |  |  |  |  |
Treasury Shares [Line Items] |  |  |  |  |  |  |  |
Total shares |  |  | 2,300,000 |  | 0 |  | 6,004,000 | 16,000
Total cost |  |  | $ 125,000 |  | $ 0 |  | $ 310,000 | $ 832
Average price per share (in usd per share) |  |  | $ 54.35 |  | $ 0.00 |  | $ 51.63 | $ 50.69
Common Stock [Member] | In the Open Market [Member] | August 17, 2015 ASR agreement [Member] |  |  |  |  |  |  |  |
Treasury Shares [Line Items] |  |  |  |  |  |  |  |
Total shares |  |  |  |  |  |  | 1,358,380 |
Common Stock [Member] | From Employees [Member] |  |  |  |  |  |  |  |
Treasury Shares [Line Items] |  |  |  |  |  |  |  |
Total shares |  |  | 37,000 |  | 60,000 |  | 243,000 | 334,000
Total cost |  |  | $ 2,039 |  | $ 3,158 |  | $ 13,050 | $ 17,097
Average price per share (in usd per share) |  |  | $ 54.70 |  | $ 52.51 |  | $ 53.65 | $ 51.17

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

X
- Definition Total cost of shares repurchased divided by the total number of shares repurchased. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655 + Details
Name: | us-gaap_TreasuryStockAcquiredAverageCostPerShare
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of shares that have been repurchased during the period and are being held in treasury. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 + Details
Name: | us-gaap_TreasuryStockSharesAcquired
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 + Details
Name: | us-gaap_TreasuryStockValueAcquiredCostMethod
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_AcceleratedShareRepurchasesDateAxis=axs_AcceleratedShareRepurchaseAgreementAugust172015Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=us-gaap_CommonStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | axs_ShareRepurchaseTypeAxis=axs_OpenMarketMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | axs_ShareRepurchaseTypeAxis=axs_EmployeesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |