Consolidated Statements of Income (Loss) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Revenues:
Earned Premiums	[1]	$ (4,215.9)	$ (4,529.4)	$ (5,213.4)
Net Investment Income		407.5	419.7	422.6
Change in Value of Alternative Energy Partnership Investments		2.3	2.9	(19.9)
Other Income		8.2	7.2	9.2
Change in Fair Value of Equity and Convertible Securities		(2.7)	4.7	(79.9)
Net Realized Investment Gains (Losses)		13.2	(18.6)	4.3
Impairment Losses		(5.8)	(1.1)	(25.8)
Total Revenues		4,638.6	4,944.2	5,523.9
Expenses:
Policyholders’ Benefits and Incurred Losses and Loss Adjustment Expenses	[2]	(3,013.1)	(3,820.0)	(4,432.6)
Insurance and Other Expenses		1,180.1	1,365.6	1,403.9
Loss from Early Extinguishment of Debt		0.0	0.0	3.7
Interest Expense		56.9	56.1	54.7
Goodwill Impairment		0.0	49.6	0.0
Total Expenses		4,250.1	5,291.3	5,894.9
Income (Loss) before Income Taxes		388.5	(347.1)	(371.0)
Income Tax Expense (Benefit)		(76.0)	74.8	84.4
Net Income (Loss)		312.5	(272.3)	(286.6)
Less: Net Loss attributable to Noncontrolling Interest		(5.3)	(0.2)	0.0
Net Income (Loss) attributable to Kemper Corporation		$ 317.8	$ (272.1)	$ (286.6)
Net Income (Loss) attributable to Kemper Corporation Per Unrestricted Share:
Basic (in dollars per share)		$ 4.95	$ (4.25)	$ (4.50)
Diluted (in dollars per share)		$ 4.91	$ (4.25)	$ (4.50)

[1] 1 Includes a remeasurement loss related to the deferred profit liability within the Life Insurance business of $7.2 million for the year ended December 31, 2024, a remeasurement loss of $19.1 million for the year ended December 31, 2023, and a remeasurement gain of $13.3 million for the year ended December 31, 2022.

[2] 2 Includes a remeasurement gain related to the liability for future policyholder benefits within the Life Insurance business of $19.2 million for the year ended December 31, 2024, a remeasurement gain of $30.3 million for the year ended December 31, 2023, and a remeasurement loss of $8.1 million for the year ended December 31, 2022.