Condensed Consolidated Statements of Income (Loss) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2025	Mar. 31, 2024
Income Statement [Abstract]
Earned Premiums	[1]	$ 1,087.9	$ 1,031.9
Net Investment Income		101.2	100.4
Other Income		2.6	2.2
Change in Fair Value of Equity and Convertible Securities		0.1	3.4
Net Realized Investment Gains		0.9	6.6
Impairment Losses		0.3	(1.5)
Total Revenues		1,193.0	1,143.0
Expenses:
Remeasurement loss	[2]	767.3	756.0
Insurance and Other Expenses		294.5	286.4
Interest Expense		11.4	14.0
Total Expenses		1,073.2	1,056.4
Income before Income Taxes		119.8	86.6
Income Tax Expense		(22.8)	(16.4)
Net Income		97.0	70.2
Less: Net Loss attributable to Noncontrolling Interest		(2.7)	(1.1)
Net Income attributable to Kemper Corporation		$ 99.7	$ 71.3
Net Income attributable to Kemper Corporation per Unrestricted Share:
Basic (in dollars per share)		$ 1.56	$ 1.11
Diluted (in dollars per share)		$ 1.54	$ 1.10

[1] 1 Includes a remeasurement gain related to the deferred profit liability within the Life insurance business of $0.2 million for the three months ended March 31, 2025 and 2024.

[2] 2 Includes a remeasurement loss related to the liability for future policyholder benefits within the Life insurance business of $0.2 million for the three months ended March 31, 2025 and 2024.