CONSOLIDATED STATEMENTS OF OPERATIONS AND OTHER COMPREHENSIVE INCOME - USD ($) $ in Millions |
12 Months Ended | |||||||||||||
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Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
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| Revenues | ||||||||||||||
| Net premiums earned | [1] | $ 2,831.9 | $ 2,889.7 | $ 2,614.5 | ||||||||||
| Net Investment Income | 326.3 | [2] | 318.0 | 275.7 | ||||||||||
| Gain (loss) on investments | 61.4 | 52.6 | 75.9 | |||||||||||
| Total revenues | 3,219.6 | 3,260.3 | 2,966.1 | |||||||||||
| Expenses | ||||||||||||||
| Losses and loss adjustment expenses | [1] | (1,546.7) | (1,717.8) | (1,553.0) | ||||||||||
| Acquisition costs | (422.4) | (420.2) | (380.2) | |||||||||||
| General, administrative and corporate expenses | [3] | (671.4) | (533.1) | (503.6) | ||||||||||
| Interest expense | (31.7) | (62.1) | (55.2) | |||||||||||
| Change in fair value of derivatives | 47.5 | (21.1) | 26.1 | |||||||||||
| Realized and unrealized investment losses (3) | [4] | (72.3) | (102.1) | (61.4) | ||||||||||
| Net realized and unrealized foreign exchange losses | (78.5) | 60.2 | (36.2) | |||||||||||
| Total expenses | (2,775.5) | (2,796.2) | (2,563.5) | |||||||||||
| Income from operations before income taxes | 444.1 | 464.1 | 402.6 | |||||||||||
| Income tax (expense)/benefit | (103.9) | 22.0 | 132.1 | |||||||||||
| Net income | 340.2 | 486.1 | 534.7 | |||||||||||
| Other Comprehensive Income: | ||||||||||||||
| Reclassification adjustment for net realized losses on investments included in net income | 43.0 | 59.4 | 40.2 | |||||||||||
| Change in net unrealized gains/(losses) on available for sale securities held | 128.0 | (25.3) | 86.0 | |||||||||||
| Net change from current period hedged transactions | 6.7 | (6.5) | (14.0) | |||||||||||
| Change in foreign currency translation adjustment | 51.6 | (14.1) | 14.4 | |||||||||||
| Other comprehensive income, before income taxes | 229.3 | 13.5 | 126.6 | |||||||||||
| Income tax (expense)/benefit thereon: | ||||||||||||||
| Reclassification adjustment for net realized losses on investments included in net income | (8.7) | (11.5) | (6.6) | |||||||||||
| Change in net unrealized (gains)/losses on available for sale securities held | (25.4) | 6.8 | (14.0) | |||||||||||
| Net change from current period hedged transactions | (1.6) | 1.4 | 0.0 | |||||||||||
| Change in foreign currency translation adjustment | (1.8) | 0.0 | 0.0 | |||||||||||
| Total income tax (expense) allocated to other comprehensive income | (37.5) | (3.3) | (20.6) | |||||||||||
| Other comprehensive income, net of tax | 191.8 | 10.2 | 106.0 | |||||||||||
| Total comprehensive income attributable to Aspen Insurance Holdings Limited | 532.0 | 496.3 | 640.7 | |||||||||||
| Preference share dividends | (45.5) | (54.9) | (49.9) | |||||||||||
| Net income (loss) available to ordinary shareholders, basic | $ 290.3 | $ 431.2 | $ 484.8 | |||||||||||
| Basic earnings per ordinary share (5) | [5] | $ 3.18 | $ 4.75 | $ 5.34 | ||||||||||
| Diluted earnings per ordinary share (5) | [5] | $ 3.17 | $ 4.75 | $ 5.34 | ||||||||||
| Preference shares | Retained earnings | ||||||||||||||
| Income tax (expense)/benefit thereon: | ||||||||||||||
| Preference share redemption costs | $ (4.4) | $ 0.0 | $ 0.0 | |||||||||||
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- Definition Changes In Redemption Cost Of Preference Shares No definition available.
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- Definition Expense. No definition available.
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- Definition Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of unrealized and realized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity), investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale) and investment in debt security measured at fair value with change in fair value recognized in net income (trading). Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of amortization expense (reversal of expense) for deferred policy acquisition costs. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of increase (decrease) in the fair value of derivatives recognized in the income statement. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, before tax, of realized and unrealized gain (loss) from foreign currency transaction. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of realized and unrealized gain (loss) on investment. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of the cost of borrowed funds accounted for as interest expense for debt. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities; of income (loss) from continuing operations available to common shareholders. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, after investment expense, of income earned from investments in securities and real estate. Includes, but is not limited to, real estate investment, policy loans, dividends, and interest. Excludes realized gain (loss) on investments. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- References No definition available.
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- Definition Amount of tax expense (benefit), before reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount before tax, after reclassification adjustments of other comprehensive income (loss). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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- Definition Amount, before tax and after reclassification, of gain (loss) from derivative instrument designated and qualifying cash flow hedge included in assessment of hedge effectiveness. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, after reclassification, of tax expense (benefit) for gain (loss) from derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount before tax, after reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount after tax and reclassification adjustments of other comprehensive income (loss). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- References No definition available.
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- Definition Amount of tax expense (benefit) allocated to other comprehensive income (loss) attributable to parent entity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount, before tax and adjustment, of unrealized holding gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Excludes unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, before adjustment, of tax expense (benefit) for unrealized holding gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Excludes tax expense (benefit) for unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount, after effects of policies assumed or ceded, of expense related to the provision for policy benefits and costs incurred. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount, after premiums ceded to other entities and premiums assumed by the entity, of premiums earned. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount before tax of reclassification adjustments of other comprehensive income (loss). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of tax expense (benefit) of reclassification adjustment from accumulated other comprehensive income (loss). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Dividends paid to preferred stock holders that is redeemable solely at the option of the issuer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- References No definition available.
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- Definition The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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