Business Segments (Tables)
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12 Months Ended |
Dec. 31, 2025 |
| Segment Reporting [Abstract] |
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| Segment Assets |
Total Segment, Non-Core Operations, and Corporate and Other assets at December 31, 2025, 2024, and 2023 were: | | | | | | | | | | | | | | | | | | | | | | DOLLARS IN MILLIONS | | 2025 | | 2024 | | 2023 | | Segment Assets: | | | | | | | Specialty Property & Casualty Insurance1 | | $ | 6,932.8 | | | $ | 6,352.9 | | | $ | 6,145.9 | | | Life Insurance | | 4,839.5 | | | 4,731.7 | | | 4,898.1 | | | Total Segment Assets | | 11,772.3 | | | 11,084.6 | | | 11,044.0 | | | Corporate and Other | | 332.3 | | | 774.7 | | | 623.7 | | | Non-Core Operations | | 368.1 | | | 771.1 | | | 1,075.0 | | Total Assets1 | | $ | 12,472.7 | | | $ | 12,630.4 | | | $ | 12,742.7 | | 1Includes $74.5 million, $41.5 million, and $4.6 million attributable to Kemper Reciprocal as of December 31, 2025, 2024, and 2023, respectively, which is reported as a consolidated variable interest entity. |
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| Earned Premiums by Product Line |
Earned Premiums by product line for the years ended December 31, 2025, 2024 and 2023 were: | | | | | | | | | | | | | | | | | | | | | | DOLLARS IN MILLIONS | | 2025 | | 2024 | | 2023 | | Specialty Property & Casualty Insurance: | | | | | | | | Personal Automobile | | $ | 3,024.9 | | | $ | 2,851.4 | | | $ | 2,977.8 | | | Commercial Automobile | | 900.8 | | | 725.0 | | | 654.7 | | Total Specialty Property & Casualty Insurance | | 3,925.7 | | | 3,576.4 | | | 3,632.5 | | | Life Insurance: | | | | | | | | Life | | 330.6 | | | 328.1 | | | 319.2 | | | Accident and Health | | 21.8 | | | 22.3 | | | 23.1 | | | Property | | 41.0 | | | 43.5 | | | 45.3 | | Total Life Insurance | | 393.4 | | | 393.9 | | | 387.6 | | | Total Segment Earned Premiums | | 4,319.1 | | | 3,970.3 | | | 4,020.1 | | | Non-Core Operations | | 77.2 | | | 245.6 | | | 509.3 | | | Total Earned Premiums | | $ | 4,396.3 | | | $ | 4,215.9 | | | $ | 4,529.4 | |
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| Segment Revenues |
Segment Revenues, including a reconciliation to Total Revenues, for the years ended December 31, 2025, 2024 and 2023 were: | | | | | | | | | | | | | | | | | | | | | | DOLLARS IN MILLIONS | | 2025 | | 2024 | | 2023 | | Segment Revenues: | | | | | | | | Specialty Property & Casualty Insurance: | | | | | | | | Earned Premiums | | $ | 3,925.7 | | | $ | 3,576.4 | | | $ | 3,632.5 | | | Net Investment Income | | 211.2 | | | 189.6 | | | 168.3 | | | | | | | | | | Other Income | | 8.9 | | | 6.1 | | | 6.1 | | | Total Specialty Property & Casualty Insurance | | 4,145.8 | | | 3,772.1 | | | 3,806.9 | | | Life Insurance: | | | | | | | | Earned Premiums | | 393.4 | | | 393.9 | | | 387.6 | | | Net Investment Income | | 188.2 | | | 170.6 | | | 193.4 | | | | | | | | | | Other Income | | 1.6 | | | 1.1 | | | 0.5 | | | Total Life Insurance | | 583.2 | | | 565.6 | | | 581.5 | | | Total Segment Revenues | | 4,729.0 | | | 4,337.7 | | | 4,388.4 | | | Change in Fair Value of Equity and Convertible Securities | | (4.3) | | | (2.7) | | | 4.7 | | | Non-Core Operations | | 84.9 | | | 282.4 | | | 558.4 | | Net Realized Investment Gains (Losses), Impairment Losses, and Other1 | | (19.9) | | | 21.2 | | | (7.3) | | | Total Revenues | | $ | 4,789.7 | | | $ | 4,638.6 | | | $ | 4,944.2 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 1During 2025, the Company elected to change the presentation of Net Realized Investment Gains (Losses), Impairment Losses, and Other by combining them into a single line item. Prior-period amounts have been recast to conform to the current-period presentation. |
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| Segment Expenses |
Significant Segment Expenses that were regularly provided to the CODM for the years ended December 31, 2025, 2024 and 2023 were: | | | | | | | | | | | | | | | | | | | | | | DOLLARS IN MILLIONS | | 2025 | | 2024 | | 2023 | | Segment Expenses: | | | | | | | | Specialty Property & Casualty Insurance: | | | | | | | | Current Year | | | | | | | | Non-catastrophe Losses and LAE | | $ | 2,991.1 | | | $ | 2,514.8 | | | $ | 2,974.5 | | | Catastrophe Losses and LAE | | 11.5 | | | 19.9 | | | 34.5 | | | Prior Years | | | | | | | | Non-catastrophe Losses and LAE | | 74.8 | | | 6.3 | | | 135.2 | | | Catastrophe Losses and LAE | | (0.2) | | | 0.7 | | | (2.3) | | | Total Incurred Losses and LAE | | 3,077.2 | | | 2,541.7 | | | 3,141.9 | | Policy Acquisition Costs1 | | 539.4 | | | 478.7 | | | 496.4 | | Business Unit Operating Costs2 | | 160.9 | | | 145.0 | | | 107.8 | | Corporate Overhead Costs3 | | 136.3 | | | 135.8 | | | 137.1 | | | Total Insurance Expenses | | 836.6 | | | 759.5 | | | 741.3 | | Income Tax Expense (Benefit) | | 44.9 | | | 94.6 | | | (19.2) | | | Total Specialty Property & Casualty Insurance | | 3,958.7 | | | 3,395.8 | | | 3,864.0 | | | Life Insurance: | | | | | | | | Policyholders’ Benefits and Incurred Losses and LAE | | 238.7 | | | 234.5 | | | 243.4 | | Policy Acquisition Costs1 | | 129.1 | | | 133.9 | | | 140.0 | | Business Unit Operating Costs2 | | 101.6 | | | 96.9 | | | 96.7 | | Corporate Overhead Costs3 | | 33.7 | | | 41.3 | | | 39.1 | | | Total Insurance Expenses | | 264.4 | | | 272.1 | | | 275.8 | | Income Tax Expense | | 11.6 | | | 8.8 | | | 10.5 | | | Total Life Insurance | | 514.7 | | | 515.4 | | | 529.7 | | | Total Segment Expenses | | $ | 4,473.4 | | | $ | 3,911.2 | | | $ | 4,393.7 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 1Policy acquisition costs primarily represents commissions and premium taxes that are incurred by the Company as a result of underwriting insurance policies and reflect the impacts of deferral and amortization of certain of these costs in accordance with the Company’s accounting policies. Refer to Footnote 2, “Summary of Accounting Policies and Accounting Changes” for discussion of the Company’s accounting policy related to Deferred Policy Acquisition Costs. | 2Business unit operating costs are general expenses incurred by the Company's segments as part of ongoing operations and includes employee, IT, and facilities expenses. | 3Corporate overhead costs represents general expenses and other shared service expenses which are allocated across the Company. |
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| Segment Net Income (Loss) |
Total Segment Adjusted Consolidated Net Operating Income (Loss), including a reconciliation to Net Income (Loss) attributable to Kemper Corporation, for the years ended December 31, 2025, 2024 and 2023 was: | | | | | | | | | | | | | | | | | | | | | | DOLLARS IN MILLIONS | | 2025 | | 2024 | | 2023 | Segment Adjusted Net Operating Income: | | | | | | | Specialty Property & Casualty Insurance | | | | | | | Revenues | | $ | 4,145.8 | | | $ | 3,772.1 | | | $ | 3,806.9 | | Expenses | | (3,958.7) | | | (3,395.8) | | | (3,864.0) | | Specialty Property & Casualty Insurance Adjusted Net Operating Income (Loss) | | 187.1 | | | 376.3 | | | (57.1) | | Life Insurance | | | | | | | Revenues | | 583.2 | | | 565.6 | | | 581.5 | | Expenses | | (514.7) | | | (515.4) | | | (529.7) | | Life Insurance Adjusted Net Operating Income | | 68.5 | | | 50.2 | | | 51.8 | | Total Segment Adjusted Net Operating Income | | 255.6 | | | 426.5 | | | (5.3) | | | Corporate and Other Adjusted Net Operating Loss | | (40.8) | | | (50.3) | | | (42.1) | | | Less: Net Loss attributable to Noncontrolling Interest | | (10.7) | | | (5.3) | | | (0.2) | | Net (Loss) Income From: | | | | | | | | Change in Fair Value of Equity and Convertible Securities | | (3.4) | | | (2.1) | | | 3.7 | | Net Realized Investment Gains (Losses) | | 4.3 | | | 10.4 | | | (14.7) | | | Impairment Losses | | (8.5) | | | (4.6) | | | (0.9) | | | Acquisition and Disposition Related Transaction, Integration, Restructuring and Other Costs | | (43.1) | | | (31.8) | | | (95.0) | | | Debt Extinguishment, Pension Settlement, and Other Charges | | 0.4 | | | (7.4) | | | (55.5) | | | Goodwill Impairment Charges | | — | | | — | | | (45.5) | | | Non-Core Operations | | (31.9) | | | (28.2) | | | (17.0) | | | | | | | | | Net Income Attributable to Kemper Corporation | | $ | 143.3 | | | $ | 317.8 | | | $ | (272.1) | |
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