XML 59 R2.htm IDEA: XBRL DOCUMENT
v3.25.1

Pay vs Performance Disclosure | 4 Months Ended | 8 Months Ended | 12 Months Ended
--- | --- | --- | ---
May 03, 2023 | Dec. 31, 2023 | Dec. 31, 2024 USD ($) | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($)
Pay vs Performance Disclosure |  |  |  |  |  |  |
Pay vs Performance Disclosure, Table |  |  |
| Year | SCT for Mr. Tizzio | CAP to Mr. Tizzio | SCT for Mr. Benchimol | CAP to Mr. Benchimol | Average SCT Total for Other NEOs | Average CAP to Other NEOs | Value of Initial Fixed $100 Investment Based On: |  |  |
| TSR | Peer Group TSR | Net Income (in 000s) | OROACE |
| (a) | (b)(1) | (c)(2) | (d) (3) | (e) (2) | (f)(4) | (g)(2) | (h)(5) | (i)(6) | (j)(7) | (k)(8) |
| 2024 | $7,921,826 |  | $18,588,646 |  | N/A | N/A | $2,894,374 |  | $5,622,806 |  | $174.90 | $227.67 | $1,081,786 | 18.6 | % |
| 2023 | $6,796,633 |  | $6,958,725 |  | $21,256,443 |  | $14,198,305 |  | $2,306,160 |  | $2,067,591 |  | $106.70 | $168.05 | $376,292 | 11.0 | % |
| 2022 | N/A | N/A | $11,560,795 |  | $8,860,715 |  | $4,122,675 |  | $3,803,233 |  | $101.10 | $151.65 | $223,083 | 11.1 | % |
| 2021 | N/A | N/A | $9,311,214 |  | $9,978,155 |  | $3,325,710 |  | $3,459,324 |  | $98.50 | $127.58 | $618,609 | 9.1 | % |
| 2020 | N/A | N/A | $7,265,614 | $3,748,070 | $2,236,139 | $1,671,405 | $88.10 | $106.96 | ($120,424) | (3.7) | % |
Company Selected Measure Name |  |  | OROACE |  |  |  |
Named Executive Officers, Footnote |  |  | Represents compensation reported in the Summary Compensation Table ("SCT") for our current President and CEO, Mr. Tizzio, who was appointed effective May 4, 2023.Represents compensation as previously reported in the Summary Compensation Tables for our former President and CEO, Mr. Benchimol. Upon Mr. Tizzio's succession as President and CEO, Mr. Benchimol assumed a new role as a strategic advisor through December 31, 2023 and then departed the Company.Average compensation of Other NEOs as a group reported in the Summary Compensation Table. For 2020 and 2021, this includes Messrs. Arora, Phillips, Vogt and Wilson. For 2022, this includes the same officers as in 2020 and 2021, plus Messrs. Brooks and Tizzio. For 2023 and 2024, this includes Messrs. Vogt, Phillips, Brooks and Draper. |  |  |  |
Peer Group Issuers, Footnote |  |  | The peer group total shareholder return assumes $100 was invested in the S&P Property & Casualty Composite Index from December 31, 2019 through the end of the listed year including the impact of reinvesting dividends. |  |  |  |
Adjustment To PEO Compensation, Footnote |  |  |
|  | Reconciliation of SCT Totals to CAP Table |
|  | Year | Reported summary compensation table | Reported value of equity awards | Equity award adjustments | Reported change in the actuarial present value of pension benefits | Pension benefit adjustments | Compensation Actually Paid |
|  | (a) | (b)(1) | (c)(2) | (d)(3) | (e) | (f) | (g)(4) |
| Vincent Tizzio | 2024 | $7,921,826 | $(4,076,576) | $14,743,396 | — |  | — |  | $18,588,646 |
| Average Other NEOs | 2024 | $2,894,374 | $(1,094,563) | $3,822,994 | — |  | — |  | $5,622,806 |
| Equity Award Adjustments Table(1) |
|  | Year | Year end fair value of equity awards granted during the year | Year over Year change in fair value of outstanding and unvested equity awards | Fair Value as of vesting date of equity awards granted and vested in the year | Change in Fair Value as of the Vesting Date of Equity Awards Granted in Prior Fiscal Years that Vested in the Fiscal Year | Fair Value at the End of the Prior Year of Equity Awards that Failed to Meet Vesting Conditions in the Year | Value of Dividends or other Earnings Paid on Stock or Option Awards not Otherwise Reflected in Fair Value or Total Compensation | Total equity award adjustments |
|  | (a) | (b) | (c) | (d) | (e) | (f) | (g)(2) | (h) |
| Vincent Tizzio | 2024 | $7,592,945 | $6,921,490 | — |  | $150,030 | — |  | $78,931 | $14,743,396 |
| Average Other NEOs | 2024 | $1,926,966 | $1,821,344 | — |  | $40,942 | — |  | $33,743 | $3,822,994 |
Non-PEO NEO Average Total Compensation Amount |  |  | $ 2,894,374 | $ 2,306,160 | $ 4,122,675 | $ 3,325,710 | $ 2,236,139
Non-PEO NEO Average Compensation Actually Paid Amount |  |  | $ 5,622,806 | 2,067,591 | 3,803,233 | 3,459,324 | 1,671,405
Adjustment to Non-PEO NEO Compensation Footnote |  |  |
|  | Reconciliation of SCT Totals to CAP Table |
|  | Year | Reported summary compensation table | Reported value of equity awards | Equity award adjustments | Reported change in the actuarial present value of pension benefits | Pension benefit adjustments | Compensation Actually Paid |
|  | (a) | (b)(1) | (c)(2) | (d)(3) | (e) | (f) | (g)(4) |
| Vincent Tizzio | 2024 | $7,921,826 | $(4,076,576) | $14,743,396 | — |  | — |  | $18,588,646 |
| Average Other NEOs | 2024 | $2,894,374 | $(1,094,563) | $3,822,994 | — |  | — |  | $5,622,806 |
| Equity Award Adjustments Table(1) |
|  | Year | Year end fair value of equity awards granted during the year | Year over Year change in fair value of outstanding and unvested equity awards | Fair Value as of vesting date of equity awards granted and vested in the year | Change in Fair Value as of the Vesting Date of Equity Awards Granted in Prior Fiscal Years that Vested in the Fiscal Year | Fair Value at the End of the Prior Year of Equity Awards that Failed to Meet Vesting Conditions in the Year | Value of Dividends or other Earnings Paid on Stock or Option Awards not Otherwise Reflected in Fair Value or Total Compensation | Total equity award adjustments |
|  | (a) | (b) | (c) | (d) | (e) | (f) | (g)(2) | (h) |
| Vincent Tizzio | 2024 | $7,592,945 | $6,921,490 | — |  | $150,030 | — |  | $78,931 | $14,743,396 |
| Average Other NEOs | 2024 | $1,926,966 | $1,821,344 | — |  | $40,942 | — |  | $33,743 | $3,822,994 |
Compensation Actually Paid vs. Total Shareholder Return |  |  |  |  |  |  |
Compensation Actually Paid vs. Net Income |  |  |  |  |  |  |
Compensation Actually Paid vs. Company Selected Measure |  |  |  |  |  |  |
Total Shareholder Return Vs Peer Group |  |  |  |  |  |  |
Tabular List, Table |  |  |
Most Important Performance Measures
OROACE | Combined Ratio
TSR | Return on Risk Adjusted Capital
Adjusted DBVPS |
Total Shareholder Return Amount |  |  | $ 174.90 | 106.70 | 101.10 | 98.50 | 88.10
Peer Group Total Shareholder Return Amount |  |  | 227.67 | 168.05 | 151.65 | 127.58 | 106.96
Net Income (Loss) |  |  | $ 1,081,786,000 | $ 376,292,000 | $ 223,083,000 | $ 618,609,000 | $ (120,424,000)
Company Selected Measure Amount |  |  | 0.186 | 0.110 | 0.111 | 0.091 | (0.037)
PEO Name | Mr. Benchimol | Mr. Tizzio | Mr. Tizzio |  | Mr. Benchimol | Mr. Benchimol | Mr. Benchimol
Additional 402(v) Disclosure |  |  | Represents the amount of compensation actually paid (CAP) as computed in accordance with SEC rules. The dollar amounts do not reflect the actual amounts of compensation paid during the applicable year. In accordance with SEC rules, the adjustments made to the Summary Compensation Table totals to determine the compensation actually paid are described in the "Reconciliation of Summary Compensation Table Totals to Compensation Actually Paid Table" and the "Equity Awards Adjustment Table" below.Total shareholder return assumes $100 was invested in the Company from December 31, 2019 through the end of the listed year in the Company including the impact of reinvesting dividends.The dollar amounts reported represent the net income (loss) as reported in the Company’s audited financial statements for the applicable year. The amounts for prior years differ from the amounts reported in our 2024 proxy statement to align with clarifying guidance from the SEC. Reconciliation of Summary Compensation Table Totals to Compensation Actually Paid Table While Summary Compensation Table (SCT) total compensation values and CAP values are shown together in the above table, they are calculated differently. The SCT compensation values include the grant date fair value of equity awards granted in the year shown (at the time the grant was made), whereas, CAP values include: (i) a revaluation of current year grants at year-end, (ii) the year-over-year change in the fair value of multiple years of historical equity grants, (iii) the vesting date value over the prior year end value for awards that vested during the year, plus (iv) dividends accrued during the listed year. As CAP includes multiple years of grants, the calculation of CAP each year is heavily impacted by the change in our stock price, and therefore, may be higher or lower than the SCT compensation values. The following table is a reconciliation of the SCT totals and CAP for 2024. Reflects compensation of our CEO, Mr. Tizzio, reported in the SCT. Average compensation of Other NEOs as a group reported in the SCT and includes Messrs. Vogt, Phillips, Brooks and Draper. (2)Represents the grant date fair value of equity awards reported in the "Stock Awards" column in the SCT for the CEO or the average of the Other NEOs as a group. Reported as a negative since it is a deduction per Item 402(v)(2)(iii) of Regulation S-K to calculate CAP. (3)See the "Equity Award Adjustments Table" below for components that total equity award adjustments. (4)Represents the amount of CAP as computed in accordance with SEC rules and set forth under the Pay Versus Performance Table above. Fair values are calculated in accordance with FASB ASC Topic 718. In the case of RSUs, fair values are calculated using the closing stock price as of applicable date whether the date is grant date, a year end date or vesting date. In the case of PSUs, the fair value calculation methodology for each year end that is not the performance period end date is consistent with methodology used as of the grant date and described in greater detail in Note 17 – "Share Based Compensation" of our consolidated financial statements included in our Annual Report on Form 10-K for the fiscal year-ended December 31, 2024. Fair value for PSUs as of the year end that is the performance period end date is based on rTSR in comparison to the peer group and the performance scale applicable for that PSU grant. 2024 PSU awards that are based on Adjusted DBVPS assumed a payout above target in 2024, as compared to the grant date fair value calculations which assumed a payout at target. Adjustments reported in columns above have been made using the changes in such fair values between the dates described in each header as the case may be. (2)Represents the dividends accrued each year for outstanding equity awards. |  |  |  |
Measure:: 1 |  |  |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |  |  |
Name |  |  | OROACE |  |  |  |
Non-GAAP Measure Description |  |  | The Company has identified OROACE as the company-selected measure for the pay-versus-performance disclosure, as it represents the most important financial performance measure used to link compensation actually paid to the CEO and Other NEOs in 2024 to the Company's performance. OROACE is the primary metric in determining Annual Incentive Plan awards. See "Compensation Discussion and Analysis" for more discussion on OROACE and its role in determining Annual Incentive Plan awards. In addition, please refer to Appendix 1 for a reconciliation of OROACE, a non-GAAP measure, to the most directly comparable GAAP measure of ROACE. |  |  |  |
Measure:: 2 |  |  |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |  |  |
Name |  |  | TSR |  |  |  |
Measure:: 3 |  |  |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |  |  |
Name |  |  | Combined Ratio |  |  |  |
Measure:: 4 |  |  |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |  |  |
Name |  |  | Return on Risk Adjusted Capital |  |  |  |
Measure:: 5 |  |  |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |  |  |
Name |  |  | Adjusted DBVPS |  |  |  |
Mr. Tizzio [Member] |  |  |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |  |  |
PEO Total Compensation Amount |  |  | $ 7,921,826 | $ 6,796,633 |  |  |
PEO Actually Paid Compensation Amount |  |  | 18,588,646 | 6,958,725 |  |  |
Mr. Benchimol [Member] |  |  |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |  |  |
PEO Total Compensation Amount |  |  |  | 21,256,443 | $ 11,560,795 | $ 9,311,214 | $ 7,265,614
PEO Actually Paid Compensation Amount |  |  |  | $ 14,198,305 | $ 8,860,715 | $ 9,978,155 | $ 3,748,070
PEO | Mr. Tizzio [Member] | Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table |  |  |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |  |  |
Adjustment to Compensation, Amount |  |  | 0 |  |  |  |
PEO | Mr. Tizzio [Member] | Aggregate Pension Adjustments Service Cost |  |  |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |  |  |
Adjustment to Compensation, Amount |  |  | 0 |  |  |  |
PEO | Mr. Tizzio [Member] | Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table |  |  |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |  |  |
Adjustment to Compensation, Amount |  |  | (4,076,576) |  |  |  |
PEO | Mr. Tizzio [Member] | Equity Awards Adjustments, Excluding Value Reported in Compensation Table |  |  |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |  |  |
Adjustment to Compensation, Amount |  |  | 14,743,396 |  |  |  |
PEO | Mr. Tizzio [Member] | Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested |  |  |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |  |  |
Adjustment to Compensation, Amount |  |  | 7,592,945 |  |  |  |
PEO | Mr. Tizzio [Member] | Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested |  |  |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |  |  |
Adjustment to Compensation, Amount |  |  | 6,921,490 |  |  |  |
PEO | Mr. Tizzio [Member] | Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year |  |  |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |  |  |
Adjustment to Compensation, Amount |  |  | 0 |  |  |  |
PEO | Mr. Tizzio [Member] | Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year |  |  |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |  |  |
Adjustment to Compensation, Amount |  |  | 150,030 |  |  |  |
PEO | Mr. Tizzio [Member] | Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year |  |  |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |  |  |
Adjustment to Compensation, Amount |  |  | 0 |  |  |  |
PEO | Mr. Tizzio [Member] | Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year |  |  |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |  |  |
Adjustment to Compensation, Amount |  |  | 78,931 |  |  |  |
Non-PEO NEO | Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table |  |  |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |  |  |
Adjustment to Compensation, Amount |  |  | 0 |  |  |  |
Non-PEO NEO | Aggregate Pension Adjustments Service Cost |  |  |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |  |  |
Adjustment to Compensation, Amount |  |  | 0 |  |  |  |
Non-PEO NEO | Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table |  |  |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |  |  |
Adjustment to Compensation, Amount |  |  | (1,094,563) |  |  |  |
Non-PEO NEO | Equity Awards Adjustments, Excluding Value Reported in Compensation Table |  |  |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |  |  |
Adjustment to Compensation, Amount |  |  | 3,822,994 |  |  |  |
Non-PEO NEO | Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested |  |  |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |  |  |
Adjustment to Compensation, Amount |  |  | 1,926,966 |  |  |  |
Non-PEO NEO | Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested |  |  |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |  |  |
Adjustment to Compensation, Amount |  |  | 1,821,344 |  |  |  |
Non-PEO NEO | Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year |  |  |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |  |  |
Adjustment to Compensation, Amount |  |  | 0 |  |  |  |
Non-PEO NEO | Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year |  |  |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |  |  |
Adjustment to Compensation, Amount |  |  | 40,942 |  |  |  |
Non-PEO NEO | Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year |  |  |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |  |  |
Adjustment to Compensation, Amount |  |  | 0 |  |  |  |
Non-PEO NEO | Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year |  |  |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |  |  |
Adjustment to Compensation, Amount |  |  | $ 33,743 |  |  |  |

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v + Details
Name: | ecd_Additional402vDisclosureTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 3 + Details
Name: | ecd_AdjToCompAmt
Namespace Prefix: | ecd_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 3 + Details
Name: | ecd_AdjToNonPeoNeoCompFnTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 3 + Details
Name: | ecd_AdjToPeoCompFnTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph vi + Details
Name: | ecd_CoSelectedMeasureAmt
Namespace Prefix: | ecd_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph vi + Details
Name: | ecd_CoSelectedMeasureName
Namespace Prefix: | ecd_
Data Type: | xbrli:normalizedStringItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 5 -Subparagraph iii + Details
Name: | ecd_CompActuallyPaidVsCoSelectedMeasureTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 5 -Subparagraph ii + Details
Name: | ecd_CompActuallyPaidVsNetIncomeTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 5 -Subparagraph i + Details
Name: | ecd_CompActuallyPaidVsTotalShareholderRtnTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph vi + Details
Name: | ecd_MeasureName
Namespace Prefix: | ecd_
Data Type: | xbrli:normalizedStringItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 3 + Details
Name: | ecd_NamedExecutiveOfficersFnTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph vi + Details
Name: | ecd_NonGaapMeasureDescriptionTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph iii + Details
Name: | ecd_NonPeoNeoAvgCompActuallyPaidAmt
Namespace Prefix: | ecd_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph ii + Details
Name: | ecd_NonPeoNeoAvgTotalCompAmt
Namespace Prefix: | ecd_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph iv + Details
Name: | ecd_PeerGroupIssuersFnTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph iv + Details
Name: | ecd_PeerGroupTotalShareholderRtnAmt
Namespace Prefix: | ecd_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph iii + Details
Name: | ecd_PeoActuallyPaidCompAmt
Namespace Prefix: | ecd_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 3 + Details
Name: | ecd_PeoName
Namespace Prefix: | ecd_
Data Type: | xbrli:normalizedStringItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph ii + Details
Name: | ecd_PeoTotalCompAmt
Namespace Prefix: | ecd_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 1 + Details
Name: | ecd_PvpTable
Namespace Prefix: | ecd_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 1 + Details
Name: | ecd_PvpTableTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 6 + Details
Name: | ecd_TabularListTableTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph iv + Details
Name: | ecd_TotalShareholderRtnAmt
Namespace Prefix: | ecd_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 5 -Subparagraph iv + Details
Name: | ecd_TotalShareholderRtnVsPeerGroupTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 250 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483443/250-10-50-6 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 250 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483443/250-10-50-9 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 805 -SubTopic 60 -Name Accounting Standards Codification -Section 65 -Paragraph 1 -Subparagraph (g) -Publisher FASB -URI https://asc.fasb.org/1943274/2147476176/805-60-65-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 323 -Name Accounting Standards Codification -Section 65 -Paragraph 2 -Subparagraph (g)(3) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478666/740-323-65-2 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(20)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(g)(1)(ii)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480678/235-10-S99-1 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 323 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481687/323-10-50-3 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 28 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-28 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482765/220-10-50-6 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Topic 250 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483443/250-10-50-3 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Topic 250 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483443/250-10-50-1 Reference 12: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 40 -Name Accounting Standards Codification -Section 65 -Paragraph 1 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480175/815-40-65-1 Reference 13: http://www.xbrl.org/2003/role/disclosureRef -Topic 250 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 8 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483443/250-10-50-8 Reference 14: http://www.xbrl.org/2003/role/disclosureRef -Topic 250 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 11 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483443/250-10-50-11 Reference 15: http://www.xbrl.org/2003/role/disclosureRef -Topic 250 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 11 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483443/250-10-50-11 Reference 16: http://www.xbrl.org/2003/role/disclosureRef -Topic 250 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483443/250-10-50-4 Reference 17: http://www.xbrl.org/2003/role/exampleRef -Topic 946 -SubTopic 830 -Name Accounting Standards Codification -Section 55 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479168/946-830-55-10 Reference 18: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 220 -Name Accounting Standards Codification -Section 45 -Paragraph 7 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479105/946-220-45-7 Reference 19: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(18)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477250/944-220-S99-1 Reference 20: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-07(9)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479134/946-220-S99-1 Reference 21: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 3 -Subparagraph (SX 210.6-09(1)(d)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479134/946-220-S99-3 Reference 22: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1A -Subparagraph (SX 210.13-01(a)(4)(i)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1A Reference 23: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1A -Subparagraph (SX 210.13-01(a)(4)(ii)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1A Reference 24: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1A -Subparagraph (SX 210.13-01(a)(4)(iii)(A)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1A Reference 25: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1A -Subparagraph (SX 210.13-01(a)(4)(iv)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1A Reference 26: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1A -Subparagraph (SX 210.13-01(a)(5)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1A Reference 27: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1B -Subparagraph (SX 210.13-02(a)(4)(i)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1B Reference 28: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1B -Subparagraph (SX 210.13-02(a)(4)(iii)(A)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1B Reference 29: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1B -Subparagraph (SX 210.13-02(a)(4)(iii)(B)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1B Reference 30: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1B -Subparagraph (SX 210.13-02(a)(4)(iv)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1B Reference 31: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1B -Subparagraph (SX 210.13-02(a)(5)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1B Reference 32: http://www.xbrl.org/2003/role/disclosureRef -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 60B -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482689/260-10-45-60B Reference 33: http://www.xbrl.org/2003/role/disclosureRef -Topic 205 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 7 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483499/205-20-50-7 Reference 34: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-28 Reference 35: http://www.xbrl.org/2003/role/disclosureRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 1A -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482790/220-10-45-1A Reference 36: http://www.xbrl.org/2003/role/disclosureRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 1B -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482790/220-10-45-1B Reference 37: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(22)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478524/942-220-S99-1 + Details
Name: | us-gaap_NetIncomeLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | ecd_MeasureAxis=1
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_MeasureAxis=2
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_MeasureAxis=3
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_MeasureAxis=4
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_MeasureAxis=5
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_IndividualAxis=axs_Mr.TizzioMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_IndividualAxis=axs_Mr.BenchimolMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_ExecutiveCategoryAxis=ecd_PeoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_AdjToCompAxis=ecd_AggtChngPnsnValInSummryCompstnTblForAplblYrMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_AdjToCompAxis=ecd_AggtPnsnAdjsSvcCstMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_AdjToCompAxis=ecd_EqtyAwrdsInSummryCompstnTblForAplblYrMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_AdjToCompAxis=ecd_EqtyAwrdsAdjsExclgValRprtdInSummryCompstnTblMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_AdjToCompAxis=ecd_YrEndFrValOfEqtyAwrdsGrntdInCvrdYrOutsdngAndUnvstdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_AdjToCompAxis=ecd_ChngInFrValOfOutsdngAndUnvstdEqtyAwrdsGrntdInPrrYrsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_AdjToCompAxis=ecd_VstngDtFrValOfEqtyAwrdsGrntdAndVstdInCvrdYrMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_AdjToCompAxis=ecd_ChngInFrValAsOfVstngDtOfPrrYrEqtyAwrdsVstdInCvrdYrMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_AdjToCompAxis=ecd_FrValAsOfPrrYrEndOfEqtyAwrdsGrntdInPrrYrsFldVstngCondsDrngCvrdYrMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_AdjToCompAxis=ecd_DvddsOrOthrErngsPdOnEqtyAwrdsNtOthrwsRflctdInTtlCompForCvrdYrMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_ExecutiveCategoryAxis=ecd_NonPeoNeoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |