Income Taxes (Details) - USD ($) |
3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
Dec. 31, 2025 |
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| Income Tax Disclosure [Abstract] | |||||
| Income tax expense (benefit) attributable to Kemper Corporation | $ (2,000,000.0) | $ 18,400,000 | $ (4,800,000) | $ 41,900,000 | |
| Effective income tax rate reconciliation, percent | 0.20% | 20.20% | 1.00% | 19.60% | |
| Unrecognized Tax Benefits | $ 0 | $ 0 | $ 0 | ||
| Liabilities for accrued interest and penalties | $ 0 | $ 0 | 0 | $ 0 | |
| Federal income taxes paid, net of refunds | 17,200,000 | 20,500,000 | |||
| State income taxes paid, net of refunds | 200,000 | 1,700,000 | |||
| Foreign income taxes paid, net of refunds | $ 0 | $ 0 | |||
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- Definition Effective Income Tax Rate Reconciliation, Percent, Attributable To Parent No definition available.
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- Definition Income Tax Expense (Benefit) Attributable to Parent No definition available.
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- References No definition available.
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- Definition Amount, after income tax refund received, of cash paid to federal (national) tax jurisdiction for tax on income. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, after income tax refund received, of cash paid to foreign tax jurisdiction for tax on income. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, after income tax refund received, of cash paid to state and local tax jurisdictions for tax on income. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of unrecognized tax benefits. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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