$KMPR
Kemper Corp Stock $kmpr

$kmpr Overview Financials Valuation SEC Filings Company Website

2023 Q2 Form 10-Q Financial Statement

#000086074823000118 Filed on May 08, 2023

Income Statement

Concept	2023 Q2	2023 Q1	2022 Q1
Revenue	$1.263B	$1.295B	$1.389B
YoY Change	-11.93%	-6.76%	2.71%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$17.90M	$147.9M	$19.60M
YoY Change	-1.1%	654.59%	37.06%
% of Gross Profit
Operating Expenses	$1.251B	$1.321B	$1.457B
YoY Change	-15.37%	-9.34%	24.22%
Operating Profit	-$23.90M	-$85.00M	-$82.50M
YoY Change	-55.24%	3.03%	-208.7%
Interest Expense	$14.00M	$14.10M	$12.70M
YoY Change	0.0%	11.02%	14.41%
% of Operating Profit
Other Income/Expense, Net	-$34.80M	-$34.20M	-$36.70M
YoY Change	17.57%	-6.81%	23.15%
Pretax Income	-$115.9M	-$103.9M	-$126.5M
YoY Change	18.63%	-17.87%	-204.03%
Income Tax	-$18.80M	-$23.80M	-$31.70M
% Of Pretax Income
Net Earnings	-$97.10M	-$80.10M	-$94.80M
YoY Change	29.99%	-15.51%	-176.95%
Net Earnings / Revenue	-7.69%	-6.19%	-6.83%
Basic Earnings Per Share	-$1.52	-$1.25	-$1.49
Diluted Earnings Per Share	-$1.52	-$1.25	-$1.49
COMMON SHARES
Basic Shares Outstanding	63.99M shares	63.96M shares	63.74M shares
Diluted Shares Outstanding	64.01M shares	63.95M shares	63.74M shares

Balance Sheet

Concept	2023 Q2	2023 Q1	2022 Q1
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$73.60M	$60.60M	$297.3M
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets	$262.0M	$249.4M	$203.4M
YoY Change	26.88%	22.62%	-9.6%
LONG-TERM ASSETS
Property, Plant & Equipment	$133.5M	$133.0M	$153.7M
YoY Change	-14.42%	-13.47%	-6.85%
Goodwill	$1.251B	$1.300B	$1.312B
YoY Change	-4.67%	-0.89%	17.77%
Intangibles
YoY Change
Long-Term Investments	$8.801B	$9.004B	$9.875B
YoY Change	-3.5%	-8.82%	1.54%
Other Assets	$217.0M	$181.0M	$183.0M
YoY Change	-15.86%	-1.09%	177.27%
Total Long-Term Assets	$12.83B	$13.15B	$14.41B
YoY Change	-6.64%	-8.72%	3.09%
TOTAL ASSETS
Total Short-Term Assets	$262.0M	$249.4M	$203.4M
Total Long-Term Assets	$12.83B	$13.15B	$14.41B
Total Assets	$13.10B	$13.40B	$14.61B
YoY Change	-6.14%	-8.29%	2.89%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses	$786.7M	$770.0M	$903.5M
YoY Change	-5.43%	-14.78%	13.79%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$786.7M	$770.0M	$903.5M
YoY Change	-5.43%	-14.78%	13.79%
LONG-TERM LIABILITIES
Long-Term Debt	$1.388B	$1.388B	$1.385B
YoY Change	0.17%	0.17%	23.35%
Other Long-Term Liabilities
YoY Change
Total Long-Term Liabilities	$1.388B	$1.388B	$1.385B
YoY Change	0.17%	0.17%	23.35%
TOTAL LIABILITIES
Total Short-Term Liabilities	$786.7M	$770.0M	$903.5M
Total Long-Term Liabilities	$1.388B	$1.388B	$1.385B
Total Liabilities	$10.58B	$10.76B	$11.22B
YoY Change	-4.67%	-4.13%	13.74%
SHAREHOLDERS EQUITY
Retained Earnings	$1.149B	$1.266B	$1.647B
YoY Change	-25.96%	-23.13%	-23.02%
Common Stock	$1.838B	$1.829B	$1.803B
YoY Change	1.38%	1.43%	0.06%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$2.512B	$2.647B	$3.395B
YoY Change
Total Liabilities & Shareholders Equity	$13.10B	$13.40B	$14.61B
YoY Change	-6.14%	-8.29%	2.89%

Cashflow Statement

Concept	2023 Q2	2023 Q1	2022 Q1
OPERATING ACTIVITIES
Net Income	-$97.10M	-$80.10M	-$94.80M
YoY Change	29.99%	-15.51%	-176.95%
Depreciation, Depletion And Amortization	$17.90M	$147.9M	$19.60M
YoY Change	-1.1%	654.59%	37.06%
Cash From Operating Activities	-$71.10M	$5.200M	-$18.20M
YoY Change	-0.97%	-128.57%	-112.94%
INVESTING ACTIVITIES
Capital Expenditures	$15.40M	$10.00M	-$16.00M
YoY Change	-300.0%	-162.5%	73.91%
Acquisitions
YoY Change
Other Investing Activities	$118.5M	-$1.100M	-$700.0K
YoY Change	18.15%	57.14%	-85.71%
Cash From Investing Activities	$103.1M	-$138.2M	-$225.1M
YoY Change	11.34%	-38.61%	-172.22%
FINANCING ACTIVITIES
Cash Dividend Paid		$19.40M	$19.80M
YoY Change		-2.02%	-5.71%
Common Stock Issuance & Retirement, Net			$0.00
YoY Change			-100.0%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-19.00M	-$18.80M	$392.4M
YoY Change	-162.3%	-104.79%	-453.51%
NET CHANGE
Cash From Operating Activities	-71.10M	$5.200M	-$18.20M
Cash From Investing Activities	103.1M	-$138.2M	-$225.1M
Cash From Financing Activities	-19.00M	-$18.80M	$392.4M
Net Change In Cash	13.00M	-$151.8M	$149.1M
YoY Change	-74.66%	-201.81%	-56.31%
FREE CASH FLOW
Cash From Operating Activities	-$71.10M	$5.200M	-$18.20M
Capital Expenditures	$15.40M	$10.00M	-$16.00M
Free Cash Flow	-$86.50M	-$4.800M	-$2.200M
YoY Change	34.95%	118.18%	-101.47%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2023Q1	dei	Entity Central Index Key EntityCentralIndexKey	0000860748
CY2023Q1	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2023Q1	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2023
CY2023Q1	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q1
CY2023Q1	dei	Amendment Flag AmendmentFlag	false
CY2023Q1	dei	Document Type DocumentType	10-Q
CY2023Q1	dei	Document Quarterly Report DocumentQuarterlyReport	true
CY2023Q1	dei	Document Period End Date DocumentPeriodEndDate	2023-03-31
CY2023Q1	dei	Document Transition Report DocumentTransitionReport	false
CY2023Q1	dei	Entity File Number EntityFileNumber	001-18298
CY2023Q1	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.10
CY2023Q1	dei	Entity Registrant Name EntityRegistrantName	Kemper Corporation
CY2023Q1	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2023Q1	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	95-4255452
CY2023Q1	dei	Entity Address Address Line1 EntityAddressAddressLine1	200 E. Randolph Street
CY2023Q1	dei	Entity Address Address Line2 EntityAddressAddressLine2	Suite 3300
CY2023Q1	dei	Entity Address City Or Town EntityAddressCityOrTown	Chicago
CY2023Q1	dei	Entity Address State Or Province EntityAddressStateOrProvince	IL
CY2023Q1	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	60601
CY2023Q1	dei	City Area Code CityAreaCode	312
CY2023Q1	dei	Local Phone Number LocalPhoneNumber	661-4600
CY2023Q1	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2023Q1	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2023Q1	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2023Q1	dei	Entity Small Business EntitySmallBusiness	false
CY2023Q1	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2023Q1	dei	Entity Shell Company EntityShellCompany	false
CY2023Q2	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	63991262	shares
CY2023Q1	kmpr	Increase Decrease In Deferred Profit Liability IncreaseDecreaseInDeferredProfitLiability	19200000	usd
CY2022Q1	kmpr	Increase Decrease In Deferred Profit Liability IncreaseDecreaseInDeferredProfitLiability	20300000	usd
CY2023Q1	us-gaap	Premiums Earned Net PremiumsEarnedNet	1180900000	usd
CY2022Q1	us-gaap	Premiums Earned Net PremiumsEarnedNet	1320000000	usd
CY2023Q1	us-gaap	Net Investment Income NetInvestmentIncome	101800000	usd
CY2022Q1	us-gaap	Net Investment Income NetInvestmentIncome	100000000.0	usd
CY2023Q1	us-gaap	Variable Interest Entity Activity Between Vie And Entity Income Or Loss Before Tax VariableInterestEntityActivityBetweenVIEAndEntityIncomeOrLossBeforeTax	700000	usd
CY2022Q1	us-gaap	Variable Interest Entity Activity Between Vie And Entity Income Or Loss Before Tax VariableInterestEntityActivityBetweenVIEAndEntityIncomeOrLossBeforeTax	-16700000	usd
CY2023Q1	us-gaap	Other Income OtherIncome	1200000	usd
CY2022Q1	us-gaap	Other Income OtherIncome	2400000	usd
CY2023Q1	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	1700000	usd
CY2022Q1	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	-28200000	usd
CY2023Q1	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	6400000	usd
CY2022Q1	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	1500000	usd
CY2023Q1	kmpr	Gain Loss On Asset Impairment Charges GainLossOnAssetImpairmentCharges	2100000	usd
CY2022Q1	kmpr	Gain Loss On Asset Impairment Charges GainLossOnAssetImpairmentCharges	-8900000	usd
CY2023Q1	us-gaap	Revenues Revenues	1294800000	usd
CY2022Q1	us-gaap	Revenues Revenues	1370100000	usd
CY2023Q1	us-gaap	Liability For Future Policy Benefit Expected Future Policy Benefit Period Increase Decrease LiabilityForFuturePolicyBenefitExpectedFuturePolicyBenefitPeriodIncreaseDecrease	1900000	usd
CY2022Q1	us-gaap	Liability For Future Policy Benefit Expected Future Policy Benefit Period Increase Decrease LiabilityForFuturePolicyBenefitExpectedFuturePolicyBenefitPeriodIncreaseDecrease	18600000	usd
CY2023Q1	us-gaap	Liability For Future Policy Benefits Period Expense LiabilityForFuturePolicyBenefitsPeriodExpense	1052000000	usd
CY2022Q1	us-gaap	Liability For Future Policy Benefits Period Expense LiabilityForFuturePolicyBenefitsPeriodExpense	1123200000	usd
CY2023Q1	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	269300000	usd
CY2022Q1	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	304800000	usd
CY2023Q1	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	usd
CY2022Q1	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-3700000	usd
CY2023Q1	kmpr	Interest And Other Expenses InterestAndOtherExpenses	77400000	usd
CY2022Q1	kmpr	Interest And Other Expenses InterestAndOtherExpenses	54100000	usd
CY2023Q1	us-gaap	Benefits Losses And Expenses BenefitsLossesAndExpenses	1398700000	usd
CY2022Q1	us-gaap	Benefits Losses And Expenses BenefitsLossesAndExpenses	1485800000	usd
CY2023Q1	us-gaap	Income Loss Attributable To Parent IncomeLossAttributableToParent	-103900000	usd
CY2022Q1	us-gaap	Income Loss Attributable To Parent IncomeLossAttributableToParent	-115700000	usd
CY2023Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-23800000	usd
CY2022Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-29400000	usd
CY2023Q1	us-gaap	Net Income Loss NetIncomeLoss	-80100000	usd
CY2022Q1	us-gaap	Net Income Loss NetIncomeLoss	-86300000	usd
CY2023Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-1.25
CY2022Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-1.36
CY2023Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-1.25
CY2022Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-1.36
CY2023Q1	us-gaap	Net Income Loss NetIncomeLoss	-80100000	usd
CY2022Q1	us-gaap	Net Income Loss NetIncomeLoss	-86300000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	500000	usd
CY2022Q1	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	100000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax	0	usd
CY2022Q1	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax	6100000	usd
CY2023Q1	kmpr	Change In Discount Rate On Future Life Policyholder Benefits ChangeInDiscountRateOnFutureLifePolicyholderBenefits	-109800000	usd
CY2022Q1	kmpr	Change In Discount Rate On Future Life Policyholder Benefits ChangeInDiscountRateOnFutureLifePolicyholderBenefits	562300000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	76900000	usd
CY2022Q1	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	-83700000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	16700000	usd
CY2022Q1	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	-17500000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	60200000	usd
CY2022Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-66200000	usd
CY2023Q1	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-19900000	usd
CY2022Q1	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-152500000	usd
CY2023Q1	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	7923600000	usd
CY2022Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	7811800000	usd
CY2023Q1	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss DebtSecuritiesAvailableForSaleAllowanceForCreditLoss	7400000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss DebtSecuritiesAvailableForSaleAllowanceForCreditLoss	9600000	usd
CY2023Q1	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	7189400000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	6894800000	usd
CY2023Q1	us-gaap	Equity Securities Fv Ni Cost EquitySecuritiesFvNiCost	230600000	usd
CY2022Q4	us-gaap	Equity Securities Fv Ni Cost EquitySecuritiesFvNiCost	247600000	usd
CY2023Q1	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	243600000	usd
CY2022Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	243200000	usd
CY2023Q1	us-gaap	Other Short Term Investments OtherShortTermInvestments	278400000	usd
CY2022Q4	us-gaap	Other Short Term Investments OtherShortTermInvestments	278400000	usd
CY2023Q1	us-gaap	Life Insurance Corporate Or Bank Owned Amount LifeInsuranceCorporateOrBankOwnedAmount	595300000	usd
CY2022Q4	us-gaap	Life Insurance Corporate Or Bank Owned Amount LifeInsuranceCorporateOrBankOwnedAmount	586500000	usd
CY2023Q1	us-gaap	Other Investments OtherInvestments	271800000	usd
CY2022Q4	us-gaap	Other Investments OtherInvestments	269900000	usd
CY2023Q1	us-gaap	Investments Investments	9097300000	usd
CY2022Q4	us-gaap	Investments Investments	8789500000	usd
CY2023Q1	us-gaap	Cash Cash	60600000	usd
CY2022Q4	us-gaap	Cash Cash	212400000	usd
CY2023Q1	us-gaap	Premiums Receivable Allowance For Doubtful Accounts PremiumsReceivableAllowanceForDoubtfulAccounts	11300000	usd
CY2022Q4	us-gaap	Premiums Receivable Allowance For Doubtful Accounts PremiumsReceivableAllowanceForDoubtfulAccounts	13100000	usd
CY2023Q1	us-gaap	Premiums Receivable At Carrying Value PremiumsReceivableAtCarryingValue	1344000000	usd
CY2022Q4	us-gaap	Premiums Receivable At Carrying Value PremiumsReceivableAtCarryingValue	1286600000	usd
CY2023Q1	us-gaap	Other Receivables OtherReceivables	249400000	usd
CY2022Q4	us-gaap	Other Receivables OtherReceivables	262600000	usd
CY2023Q1	us-gaap	Deferred Policy Acquisition Costs DeferredPolicyAcquisitionCosts	651500000	usd
CY2022Q4	us-gaap	Deferred Policy Acquisition Costs DeferredPolicyAcquisitionCosts	635600000	usd
CY2023Q1	us-gaap	Goodwill Goodwill	1300300000	usd
CY2022Q4	us-gaap	Goodwill Goodwill	1300300000	usd
CY2023Q1	us-gaap	Income Tax Receivable IncomeTaxReceivable	15000000.0	usd
CY2022Q4	us-gaap	Income Tax Receivable IncomeTaxReceivable	167600000	usd
CY2023Q1	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	166000000.0	usd
CY2022Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	129000000.0	usd
CY2023Q1	us-gaap	Other Assets OtherAssets	519600000	usd
CY2022Q4	us-gaap	Other Assets OtherAssets	530000000.0	usd
CY2023Q1	us-gaap	Assets Assets	13403700000	usd
CY2022Q4	us-gaap	Assets Assets	13313600000	usd
CY2023Q1	us-gaap	Liability For Claims And Claims Adjustment Expense Disability Accident And Health LiabilityForClaimsAndClaimsAdjustmentExpenseDisabilityAccidentAndHealth	3399600000	usd
CY2022Q4	us-gaap	Liability For Claims And Claims Adjustment Expense Disability Accident And Health LiabilityForClaimsAndClaimsAdjustmentExpenseDisabilityAccidentAndHealth	3276200000	usd
CY2023Q1	us-gaap	Liability For Claims And Claims Adjustment Expense Property Casualty Liability LiabilityForClaimsAndClaimsAdjustmentExpensePropertyCasualtyLiability	2721100000	usd
CY2022Q4	us-gaap	Liability For Claims And Claims Adjustment Expense Property Casualty Liability LiabilityForClaimsAndClaimsAdjustmentExpensePropertyCasualtyLiability	2756900000	usd
CY2023Q1	us-gaap	Liability For Claims And Claims Adjustment Expense LiabilityForClaimsAndClaimsAdjustmentExpense	6120700000	usd
CY2022Q4	us-gaap	Liability For Claims And Claims Adjustment Expense LiabilityForClaimsAndClaimsAdjustmentExpense	6033100000	usd
CY2023Q1	us-gaap	Unearned Premiums UnearnedPremiums	1778000000	usd
CY2022Q4	us-gaap	Unearned Premiums UnearnedPremiums	1704400000	usd
CY2023Q1	us-gaap	Borrowings Under Guaranteed Investment Agreements BorrowingsUnderGuaranteedInvestmentAgreements	700600000	usd
CY2022Q4	us-gaap	Borrowings Under Guaranteed Investment Agreements BorrowingsUnderGuaranteedInvestmentAgreements	701300000	usd
CY2023Q1	us-gaap	Accrued Liabilities And Other Liabilities AccruedLiabilitiesAndOtherLiabilities	770000000.0	usd
CY2022Q4	us-gaap	Accrued Liabilities And Other Liabilities AccruedLiabilitiesAndOtherLiabilities	817300000	usd
CY2023Q1	us-gaap	Long Term Debt Fair Value LongTermDebtFairValue	1222000000	usd
CY2022Q4	us-gaap	Long Term Debt Fair Value LongTermDebtFairValue	1195100000	usd
CY2023Q1	us-gaap	Long Term Debt LongTermDebt	1387500000	usd
CY2022Q4	us-gaap	Long Term Debt LongTermDebt	1386900000	usd
CY2023Q1	us-gaap	Liabilities Liabilities	10756800000	usd
CY2022Q4	us-gaap	Liabilities Liabilities	10643000000	usd
CY2023Q1	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.10
CY2022Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.10
CY2022Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	100000000	shares
CY2023Q1	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	100000000	shares
CY2023Q1	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	63982224	shares
CY2023Q1	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	63982224	shares
CY2022Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	63912762	shares
CY2022Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	63912762	shares
CY2023Q1	us-gaap	Common Stock Value Outstanding CommonStockValueOutstanding	6400000	usd
CY2022Q4	us-gaap	Common Stock Value Outstanding CommonStockValueOutstanding	6400000	usd
CY2023Q1	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	1828900000	usd
CY2022Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	1812700000	usd
CY2023Q1	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	1266300000	usd
CY2022Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	1366400000	usd
CY2023Q1	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-454700000	usd
CY2022Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-514900000	usd
CY2023Q1	us-gaap	Stockholders Equity StockholdersEquity	2646900000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	2670600000	usd
CY2023Q1	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	13403700000	usd
CY2022Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	13313600000	usd
CY2023Q1	us-gaap	Net Income Loss NetIncomeLoss	-80100000	usd
CY2022Q1	us-gaap	Net Income Loss NetIncomeLoss	-86300000	usd
CY2023Q1	us-gaap	Debt And Equity Securities Realized Gain Loss DebtAndEquitySecuritiesRealizedGainLoss	6400000	usd
CY2022Q1	us-gaap	Debt And Equity Securities Realized Gain Loss DebtAndEquitySecuritiesRealizedGainLoss	1500000	usd
CY2023Q1	kmpr	Gain Loss On Asset Impairment Charges GainLossOnAssetImpairmentCharges	2100000	usd
CY2022Q1	kmpr	Gain Loss On Asset Impairment Charges GainLossOnAssetImpairmentCharges	-8900000	usd
CY2023Q1	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	11900000	usd
CY2022Q1	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	13400000	usd
CY2023Q1	kmpr	Amortizationof Intangibles Acquired AmortizationofIntangiblesAcquired	4300000	usd
CY2022Q1	kmpr	Amortizationof Intangibles Acquired AmortizationofIntangiblesAcquired	6200000	usd
CY2023Q1	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	usd
CY2022Q1	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-3700000	usd
CY2023Q1	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	-800000	usd
CY2022Q1	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	5800000	usd
CY2023Q1	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	1700000	usd
CY2022Q1	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	-28200000	usd
CY2023Q1	us-gaap	Increase Decrease In Premiums Receivable IncreaseDecreaseInPremiumsReceivable	57400000	usd
CY2022Q1	us-gaap	Increase Decrease In Premiums Receivable IncreaseDecreaseInPremiumsReceivable	-14200000	usd
CY2023Q1	us-gaap	Increase Decrease In Reinsurance Recoverable IncreaseDecreaseInReinsuranceRecoverable	-4100000	usd
CY2022Q1	us-gaap	Increase Decrease In Reinsurance Recoverable IncreaseDecreaseInReinsuranceRecoverable	300000	usd
CY2023Q1	us-gaap	Increase Decrease In Deferred Policy Acquisition Costs IncreaseDecreaseInDeferredPolicyAcquisitionCosts	15900000	usd
CY2022Q1	us-gaap	Increase Decrease In Deferred Policy Acquisition Costs IncreaseDecreaseInDeferredPolicyAcquisitionCosts	1600000	usd
CY2023Q1	us-gaap	Increase Decrease In Liability For Claims And Claims Adjustment Expense Reserve IncreaseDecreaseInLiabilityForClaimsAndClaimsAdjustmentExpenseReserve	-21800000	usd
CY2022Q1	us-gaap	Increase Decrease In Liability For Claims And Claims Adjustment Expense Reserve IncreaseDecreaseInLiabilityForClaimsAndClaimsAdjustmentExpenseReserve	-8700000	usd
CY2023Q1	us-gaap	Increase Decrease In Unearned Premiums IncreaseDecreaseInUnearnedPremiums	73600000	usd
CY2022Q1	us-gaap	Increase Decrease In Unearned Premiums IncreaseDecreaseInUnearnedPremiums	-8200000	usd
CY2023Q1	us-gaap	Increase Decrease In Income Taxes IncreaseDecreaseInIncomeTaxes	106200000	usd
CY2022Q1	us-gaap	Increase Decrease In Income Taxes IncreaseDecreaseInIncomeTaxes	-28200000	usd
CY2023Q1	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	9600000	usd
CY2022Q1	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-31100000	usd
CY2023Q1	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	5200000	usd
CY2022Q1	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-18200000	usd
CY2023Q1	us-gaap	Proceeds From Sale And Maturity Of Available For Sale Securities ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities	154000000.0	usd
CY2022Q1	us-gaap	Proceeds From Sale And Maturity Of Available For Sale Securities ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities	128600000	usd
CY2023Q1	us-gaap	Proceeds From Sale Of Equity Securities Fv Ni ProceedsFromSaleOfEquitySecuritiesFvNi	19500000	usd
CY2022Q1	us-gaap	Proceeds From Sale Of Equity Securities Fv Ni ProceedsFromSaleOfEquitySecuritiesFvNi	249700000	usd
CY2023Q1	us-gaap	Proceeds From Sale And Collection Of Mortgage Notes Receivable ProceedsFromSaleAndCollectionOfMortgageNotesReceivable	18600000	usd
CY2022Q1	us-gaap	Proceeds From Sale And Collection Of Mortgage Notes Receivable ProceedsFromSaleAndCollectionOfMortgageNotesReceivable	22800000	usd
CY2023Q1	us-gaap	Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital	2600000	usd
CY2022Q1	us-gaap	Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital	20500000	usd
CY2023Q1	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	293300000	usd
CY2022Q1	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	527200000	usd
CY2023Q1	us-gaap	Payments To Acquire Equity Securities Fv Ni PaymentsToAcquireEquitySecuritiesFvNi	13200000	usd
CY2022Q1	us-gaap	Payments To Acquire Equity Securities Fv Ni PaymentsToAcquireEquitySecuritiesFvNi	21300000	usd
CY2023Q1	us-gaap	Payments To Acquire Real Estate Held For Investment PaymentsToAcquireRealEstateHeldForInvestment	200000	usd
CY2022Q1	us-gaap	Payments To Acquire Real Estate Held For Investment PaymentsToAcquireRealEstateHeldForInvestment	0	usd
CY2023Q1	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	0	usd
CY2022Q1	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	100000000.0	usd
CY2023Q1	us-gaap	Payments To Acquire Mortgage Notes Receivable PaymentsToAcquireMortgageNotesReceivable	13300000	usd
CY2022Q1	us-gaap	Payments To Acquire Mortgage Notes Receivable PaymentsToAcquireMortgageNotesReceivable	21300000	usd
CY2023Q1	us-gaap	Payments To Acquire Interest In Subsidiaries And Affiliates PaymentsToAcquireInterestInSubsidiariesAndAffiliates	4700000	usd
CY2022Q1	us-gaap	Payments To Acquire Interest In Subsidiaries And Affiliates PaymentsToAcquireInterestInSubsidiariesAndAffiliates	1900000	usd
CY2023Q1	us-gaap	Payments For Proceeds From Short Term Investments PaymentsForProceedsFromShortTermInvestments	-700000	usd
CY2022Q1	us-gaap	Payments For Proceeds From Short Term Investments PaymentsForProceedsFromShortTermInvestments	-40300000	usd
CY2023Q1	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	10000000.0	usd
CY2022Q1	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	16000000.0	usd
CY2023Q1	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-1100000	usd
CY2022Q1	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-700000	usd
CY2023Q1	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-138200000	usd
CY2022Q1	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-225100000	usd
CY2023Q1	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-138200000	usd
CY2022Q1	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-225100000	usd
CY2023Q1	us-gaap	Repayments Of Senior Debt RepaymentsOfSeniorDebt	0	usd
CY2022Q1	us-gaap	Repayments Of Senior Debt RepaymentsOfSeniorDebt	280000000.0	usd
CY2023Q1	us-gaap	Proceeds From Issuance Of Senior Long Term Debt ProceedsFromIssuanceOfSeniorLongTermDebt	0	usd
CY2022Q1	us-gaap	Proceeds From Issuance Of Senior Long Term Debt ProceedsFromIssuanceOfSeniorLongTermDebt	396300000	usd
CY2023Q1	us-gaap	Proceeds From Issuance Of Subordinated Long Term Debt ProceedsFromIssuanceOfSubordinatedLongTermDebt	0	usd
CY2022Q1	us-gaap	Proceeds From Issuance Of Subordinated Long Term Debt ProceedsFromIssuanceOfSubordinatedLongTermDebt	145600000	usd
CY2023Q1	us-gaap	Proceeds From Repayments Of Secured Debt ProceedsFromRepaymentsOfSecuredDebt	89300000	usd
CY2022Q1	us-gaap	Proceeds From Repayments Of Secured Debt ProceedsFromRepaymentsOfSecuredDebt	208600000	usd
CY2023Q1	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	90000000.0	usd
CY2022Q1	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	57800000	usd
CY2023Q1	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	1000000.0	usd
CY2022Q1	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	1300000	usd
CY2023Q1	us-gaap	Payments Of Dividends PaymentsOfDividends	19400000	usd
CY2022Q1	us-gaap	Payments Of Dividends PaymentsOfDividends	19800000	usd
CY2023Q1	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	300000	usd
CY2022Q1	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	300000	usd
CY2023Q1	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-18800000	usd
CY2022Q1	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	392400000	usd
CY2023Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-151800000	usd
CY2022Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	149100000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	212400000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	148200000	usd
CY2023Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	60600000	usd
CY2022Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	297300000	usd
CY2022Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2670600000	usd
CY2023Q1	us-gaap	Net Income Loss NetIncomeLoss	-80100000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	60200000	usd
CY2023Q1	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.31
CY2023Q1	us-gaap	Dividends Dividends	19400000	usd
CY2023Q1	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	1000000.0	usd
CY2023Q1	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	15600000	usd
CY2023Q1	kmpr	Share Based Awards Net Of Shares Exchanged ShareBasedAwardsNetOfSharesExchanged	-1000000.0	usd
CY2023Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2646900000	usd
CY2021Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3129700000	usd
CY2022Q1	us-gaap	Net Income Loss NetIncomeLoss	-86300000	usd
CY2022Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-66200000	usd
CY2022Q1	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.31
CY2022Q1	us-gaap	Dividends Dividends	19600000	usd
CY2022Q1	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	1300000	usd
CY2022Q1	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	11900000	usd
CY2022Q1	kmpr	Share Based Awards Net Of Shares Exchanged ShareBasedAwardsNetOfSharesExchanged	-1600000	usd
CY2022Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2969200000	usd
CY2022Q1	us-gaap	Premiums Earned Net PremiumsEarnedNet	1320000000	usd
CY2022Q1	us-gaap	Liability For Future Policy Benefits Period Expense LiabilityForFuturePolicyBenefitsPeriodExpense	1123200000	usd
CY2022Q1	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	304800000	usd
CY2022Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-29400000	usd
CY2022Q1	us-gaap	Net Income Loss NetIncomeLoss	-86300000	usd
CY2022Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-1.36
CY2022Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-1.36
CY2022Q4	us-gaap	Deferred Policy Acquisition Costs DeferredPolicyAcquisitionCosts	635600000	usd
CY2022Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	129000000.0	usd
CY2022Q4	us-gaap	Assets Assets	13313600000	usd
CY2022Q4	us-gaap	Liability For Claims And Claims Adjustment Expense Disability Accident And Health LiabilityForClaimsAndClaimsAdjustmentExpenseDisabilityAccidentAndHealth	3276200000	usd
CY2022Q4	us-gaap	Liabilities Liabilities	10643000000	usd
CY2022Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	1366400000	usd
CY2022Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-514900000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	2670600000	usd
CY2022Q1	kmpr	Change In Discount Rate On Future Life Policyholder Benefits ChangeInDiscountRateOnFutureLifePolicyholderBenefits	562300000	usd
CY2022Q1	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	-83700000	usd
CY2022Q1	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	-17500000	usd
CY2022Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-66200000	usd
CY2022Q1	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-152500000	usd
CY2022Q1	us-gaap	Net Income Loss NetIncomeLoss	-86300000	usd
CY2022Q1	us-gaap	Increase Decrease In Deferred Policy Acquisition Costs IncreaseDecreaseInDeferredPolicyAcquisitionCosts	1600000	usd
CY2022Q1	us-gaap	Increase Decrease In Liability For Claims And Claims Adjustment Expense Reserve IncreaseDecreaseInLiabilityForClaimsAndClaimsAdjustmentExpenseReserve	-8700000	usd
CY2022Q1	us-gaap	Increase Decrease In Income Taxes IncreaseDecreaseInIncomeTaxes	-28200000	usd
CY2022Q1	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-18200000	usd
CY2023Q1	us-gaap	Net Income Loss NetIncomeLoss	-80100000	usd
CY2022Q1	us-gaap	Net Income Loss NetIncomeLoss	-86300000	usd
CY2023Q1	us-gaap	Amount Of Dilutive Securities Stock Options And Restrictive Stock Units AmountOfDilutiveSecuritiesStockOptionsAndRestrictiveStockUnits	0	usd
CY2022Q1	us-gaap	Amount Of Dilutive Securities Stock Options And Restrictive Stock Units AmountOfDilutiveSecuritiesStockOptionsAndRestrictiveStockUnits	0	usd
CY2023Q1	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	-80100000	usd
CY2022Q1	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	-86300000	usd
CY2023Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	63946600	shares
CY2022Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	63743700	shares
CY2023Q1	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0	shares
CY2022Q1	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0	shares
CY2023Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	63946600	shares
CY2022Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	63743700	shares
CY2023Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-1.25
CY2022Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-1.36
CY2023Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-1.25
CY2022Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-1.36
CY2022Q4	us-gaap	Disposal Group Including Discontinued Operation Consideration DisposalGroupIncludingDiscontinuedOperationConsideration	90000000	usd
CY2023Q1	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	3	segment
CY2023Q1	us-gaap	Premiums Earned Net PremiumsEarnedNet	1180900000	usd
CY2022Q1	us-gaap	Premiums Earned Net PremiumsEarnedNet	1320000000	usd
CY2023Q1	us-gaap	Revenues Revenues	1294800000	usd
CY2022Q1	us-gaap	Revenues Revenues	1370100000	usd
CY2023Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	-85000000.0	usd
CY2022Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	-71700000	usd
CY2023Q1	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	usd
CY2022Q1	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-3700000	usd
CY2023Q1	us-gaap	Income Loss Attributable To Parent IncomeLossAttributableToParent	-103900000	usd
CY2022Q1	us-gaap	Income Loss Attributable To Parent IncomeLossAttributableToParent	-115700000	usd
CY2023Q1	kmpr	Operating Income Loss Netof Tax OperatingIncomeLossNetofTax	-65200000	usd
CY2022Q1	kmpr	Operating Income Loss Netof Tax OperatingIncomeLossNetofTax	-51600000	usd
CY2023Q1	us-gaap	Net Income Loss NetIncomeLoss	-80100000	usd
CY2022Q1	us-gaap	Net Income Loss NetIncomeLoss	-86300000	usd
CY2023Q1	us-gaap	Schedule Of Liability For Unpaid Claims And Claims Adjustment Expense ScheduleOfLiabilityForUnpaidClaimsAndClaimsAdjustmentExpense	<div style="margin-bottom:9pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Property and casualty insurance reserve activity for the three months ended March 31, 2023 and 2022 was:</span></div><div style="margin-bottom:9pt;margin-top:5pt"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:99.853%"><tr><td style="width:1.0%"/><td style="width:77.816%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.532%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:8.709%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.532%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:8.711%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%"> </span></td><td colspan="3" style="padding:0 1pt"/><td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">Three Months Ended</span></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">(Dollars in Millions)</span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">Mar 31,<br/>2023</span></td><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">Mar 31,<br/>2022</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Property and Casualty Insurance Reserves:</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000;padding:0 1pt"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Gross of Reinsurance at Beginning of Year</span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">2,756.9 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">2,772.7 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Less Reinsurance Recoverables at Beginning of Year</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">39.6 </span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">41.9 </span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Property and Casualty Insurance Reserves, Net of Reinsurance at Beginning of Year</span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">2,717.3 </span></td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">2,730.8 </span></td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Incurred Losses and Loss Adjustment Expenses (“ LAE”) Related to:</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Current Year</span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">944.0 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1,041.9 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Prior Years</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">41.9 </span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(2.7)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total Incurred Losses and LAE</span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">985.9 </span></td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1,039.2 </span></td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Paid Losses and LAE Related to:</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:0 1pt"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Current Year</span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">325.5 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">373.9 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Prior Years</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">690.9 </span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">676.9 </span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total Paid Losses and LAE</span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1,016.4 </span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1,050.8 </span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 13pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Property and Casualty Insurance Reserves, Net of Reinsurance at End of Period</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">2,686.8 </span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">2,719.2 </span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 13pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Plus Reinsurance Recoverables at End of Period</span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">34.3 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">40.9 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Property and Casualty Insurance Reserves - Gross of Reinsurance at End of Period</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">2,721.1 </span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">2,760.1 </span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr></table></div>
CY2022Q1	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Prior Year Claims And Claims Adjustment Expense SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPriorYearClaimsAndClaimsAdjustmentExpense	-2700000	usd
CY2022Q4	kmpr	Premiums Receivable Net Including Disposal Group And Discontinued Operations PremiumsReceivableNetIncludingDisposalGroupAndDiscontinuedOperations	1286600000	usd
CY2022Q4	us-gaap	Premiums Receivable Allowance For Doubtful Accounts PremiumsReceivableAllowanceForDoubtfulAccounts	13100000	usd
CY2023Q1	us-gaap	Premium Receivable Credit Loss Expense Reversal PremiumReceivableCreditLossExpenseReversal	11000000.0	usd
CY2023Q1	us-gaap	Premiums Receivable Allowance For Doubtful Accounts Write Offs Against Allowance PremiumsReceivableAllowanceForDoubtfulAccountsWriteOffsAgainstAllowance	12800000	usd
CY2023Q1	kmpr	Premiums Receivable Net Including Disposal Group And Discontinued Operations PremiumsReceivableNetIncludingDisposalGroupAndDiscontinuedOperations	1344000000	usd
CY2023Q1	us-gaap	Premiums Receivable Allowance For Doubtful Accounts PremiumsReceivableAllowanceForDoubtfulAccounts	11300000	usd
CY2021Q4	us-gaap	Premiums Receivable At Carrying Value PremiumsReceivableAtCarryingValue	1418700000	usd
CY2021Q4	us-gaap	Premiums Receivable Allowance For Doubtful Accounts PremiumsReceivableAllowanceForDoubtfulAccounts	13600000	usd
CY2022Q1	us-gaap	Premium Receivable Credit Loss Expense Reversal PremiumReceivableCreditLossExpenseReversal	11300000	usd
CY2022Q1	us-gaap	Premiums Receivable Allowance For Doubtful Accounts Write Offs Against Allowance PremiumsReceivableAllowanceForDoubtfulAccountsWriteOffsAgainstAllowance	11900000	usd
CY2022Q1	us-gaap	Premiums Receivable At Carrying Value PremiumsReceivableAtCarryingValue	1404500000	usd
CY2022Q1	us-gaap	Premiums Receivable Allowance For Doubtful Accounts PremiumsReceivableAllowanceForDoubtfulAccounts	13000000.0	usd
CY2022Q4	us-gaap	Liability For Future Policy Benefit Expected Net Premium Before Reinsurance After Discount Rate Change LiabilityForFuturePolicyBenefitExpectedNetPremiumBeforeReinsuranceAfterDiscountRateChange	688600000	usd
CY2021Q4	us-gaap	Liability For Future Policy Benefit Expected Net Premium Before Reinsurance After Discount Rate Change LiabilityForFuturePolicyBenefitExpectedNetPremiumBeforeReinsuranceAfterDiscountRateChange	669000000.0	usd
CY2022Q4	us-gaap	Liability For Future Policy Benefit Expected Net Premium Original Discount Rate Before Cash Flow And Reinsurance LiabilityForFuturePolicyBenefitExpectedNetPremiumOriginalDiscountRateBeforeCashFlowAndReinsurance	728900000	usd
CY2021Q4	us-gaap	Liability For Future Policy Benefit Expected Net Premium Original Discount Rate Before Cash Flow And Reinsurance LiabilityForFuturePolicyBenefitExpectedNetPremiumOriginalDiscountRateBeforeCashFlowAndReinsurance	599800000	usd
CY2023Q1	us-gaap	Liability For Future Policy Benefit Expected Net Premium Cumulative Increase Decrease From Cash Flow Change LiabilityForFuturePolicyBenefitExpectedNetPremiumCumulativeIncreaseDecreaseFromCashFlowChange	0	usd
CY2022Q1	us-gaap	Liability For Future Policy Benefit Expected Net Premium Cumulative Increase Decrease From Cash Flow Change LiabilityForFuturePolicyBenefitExpectedNetPremiumCumulativeIncreaseDecreaseFromCashFlowChange	0	usd
CY2023Q1	us-gaap	Liability For Future Policy Benefit Expected Net Premium Cumulative Increase Decrease Of Actual Variance From Expected Experience LiabilityForFuturePolicyBenefitExpectedNetPremiumCumulativeIncreaseDecreaseOfActualVarianceFromExpectedExperience	700000	usd
CY2022Q1	us-gaap	Liability For Future Policy Benefit Expected Net Premium Cumulative Increase Decrease Of Actual Variance From Expected Experience LiabilityForFuturePolicyBenefitExpectedNetPremiumCumulativeIncreaseDecreaseOfActualVarianceFromExpectedExperience	12500000	usd
CY2023Q1	us-gaap	Liability For Future Policy Benefit Expected Net Premium Original Discount Rate Before Reinsurance After Cash Flow Change LiabilityForFuturePolicyBenefitExpectedNetPremiumOriginalDiscountRateBeforeReinsuranceAfterCashFlowChange	729600000	usd
CY2022Q1	us-gaap	Liability For Future Policy Benefit Expected Net Premium Original Discount Rate Before Reinsurance After Cash Flow Change LiabilityForFuturePolicyBenefitExpectedNetPremiumOriginalDiscountRateBeforeReinsuranceAfterCashFlowChange	612300000	usd
CY2023Q1	us-gaap	Liability For Future Policy Benefit Expected Net Premium Issuance LiabilityForFuturePolicyBenefitExpectedNetPremiumIssuance	31800000	usd
CY2022Q1	us-gaap	Liability For Future Policy Benefit Expected Net Premium Issuance LiabilityForFuturePolicyBenefitExpectedNetPremiumIssuance	41600000	usd
CY2023Q1	us-gaap	Liability For Future Policy Benefit Expected Net Premium Interest Income LiabilityForFuturePolicyBenefitExpectedNetPremiumInterestIncome	7000000.0	usd
CY2022Q1	us-gaap	Liability For Future Policy Benefit Expected Net Premium Interest Income LiabilityForFuturePolicyBenefitExpectedNetPremiumInterestIncome	5100000	usd
CY2023Q1	us-gaap	Liability For Future Policy Benefit Expected Net Premium Net Premium Collected LiabilityForFuturePolicyBenefitExpectedNetPremiumNetPremiumCollected	23900000	usd
CY2022Q1	us-gaap	Liability For Future Policy Benefit Expected Net Premium Net Premium Collected LiabilityForFuturePolicyBenefitExpectedNetPremiumNetPremiumCollected	21100000	usd
CY2023Q1	us-gaap	Liability For Future Policy Benefit Expected Net Premium Original Discount Rate Before Cash Flow And Reinsurance LiabilityForFuturePolicyBenefitExpectedNetPremiumOriginalDiscountRateBeforeCashFlowAndReinsurance	744500000	usd
CY2022Q1	us-gaap	Liability For Future Policy Benefit Expected Net Premium Original Discount Rate Before Cash Flow And Reinsurance LiabilityForFuturePolicyBenefitExpectedNetPremiumOriginalDiscountRateBeforeCashFlowAndReinsurance	637900000	usd
CY2023Q1	us-gaap	Aoci Liability For Future Policy Benefit Expected Net Premium Before Tax AociLiabilityForFuturePolicyBenefitExpectedNetPremiumBeforeTax	-22100000	usd
CY2022Q1	us-gaap	Aoci Liability For Future Policy Benefit Expected Net Premium Before Tax AociLiabilityForFuturePolicyBenefitExpectedNetPremiumBeforeTax	23100000	usd
CY2023Q1	us-gaap	Liability For Future Policy Benefit Expected Net Premium Before Reinsurance After Discount Rate Change LiabilityForFuturePolicyBenefitExpectedNetPremiumBeforeReinsuranceAfterDiscountRateChange	722400000	usd
CY2022Q1	us-gaap	Liability For Future Policy Benefit Expected Net Premium Before Reinsurance After Discount Rate Change LiabilityForFuturePolicyBenefitExpectedNetPremiumBeforeReinsuranceAfterDiscountRateChange	661000000.0	usd
CY2022Q4	us-gaap	Liability For Future Policy Benefit Expected Future Policy Benefit Before Reinsurance After Discount Rate Change LiabilityForFuturePolicyBenefitExpectedFuturePolicyBenefitBeforeReinsuranceAfterDiscountRateChange	3561000000	usd
CY2021Q4	us-gaap	Liability For Future Policy Benefit Expected Future Policy Benefit Before Reinsurance After Discount Rate Change LiabilityForFuturePolicyBenefitExpectedFuturePolicyBenefitBeforeReinsuranceAfterDiscountRateChange	4933100000	usd
CY2022Q4	us-gaap	Liability For Future Policy Benefit Expected Future Policy Benefit Original Discount Rate Before Cash Flow And Reinsurance LiabilityForFuturePolicyBenefitExpectedFuturePolicyBenefitOriginalDiscountRateBeforeCashFlowAndReinsurance	3906200000	usd
CY2021Q4	us-gaap	Liability For Future Policy Benefit Expected Future Policy Benefit Original Discount Rate Before Cash Flow And Reinsurance LiabilityForFuturePolicyBenefitExpectedFuturePolicyBenefitOriginalDiscountRateBeforeCashFlowAndReinsurance	3788100000	usd
CY2023Q1	us-gaap	Liability For Future Policy Benefit Expected Future Policy Benefit Cumulative Increase Decrease From Cash Flow Change LiabilityForFuturePolicyBenefitExpectedFuturePolicyBenefitCumulativeIncreaseDecreaseFromCashFlowChange	0	usd
CY2022Q1	us-gaap	Liability For Future Policy Benefit Expected Future Policy Benefit Cumulative Increase Decrease From Cash Flow Change LiabilityForFuturePolicyBenefitExpectedFuturePolicyBenefitCumulativeIncreaseDecreaseFromCashFlowChange	0	usd
CY2023Q1	us-gaap	Liability For Future Policy Benefit Expected Future Policy Benefit Cumulative Increase Decrease Of Actual Variance From Expected Experience LiabilityForFuturePolicyBenefitExpectedFuturePolicyBenefitCumulativeIncreaseDecreaseOfActualVarianceFromExpectedExperience	300000	usd
CY2022Q1	us-gaap	Liability For Future Policy Benefit Expected Future Policy Benefit Cumulative Increase Decrease Of Actual Variance From Expected Experience LiabilityForFuturePolicyBenefitExpectedFuturePolicyBenefitCumulativeIncreaseDecreaseOfActualVarianceFromExpectedExperience	12700000	usd
CY2023Q1	us-gaap	Liability For Future Policy Benefit Expected Future Benefit Original Discount Rate Before Reinsurance After Cash Flow Change LiabilityForFuturePolicyBenefitExpectedFutureBenefitOriginalDiscountRateBeforeReinsuranceAfterCashFlowChange	3906500000	usd
CY2022Q1	us-gaap	Liability For Future Policy Benefit Expected Future Benefit Original Discount Rate Before Reinsurance After Cash Flow Change LiabilityForFuturePolicyBenefitExpectedFutureBenefitOriginalDiscountRateBeforeReinsuranceAfterCashFlowChange	3800800000	usd
CY2023Q1	us-gaap	Liability For Future Policy Benefit Expected Future Policy Benefit Issuance LiabilityForFuturePolicyBenefitExpectedFuturePolicyBenefitIssuance	31800000	usd
CY2022Q1	us-gaap	Liability For Future Policy Benefit Expected Future Policy Benefit Issuance LiabilityForFuturePolicyBenefitExpectedFuturePolicyBenefitIssuance	41600000	usd
CY2023Q1	us-gaap	Liability For Future Policy Benefit Expected Future Policy Benefit Interest Expense LiabilityForFuturePolicyBenefitExpectedFuturePolicyBenefitInterestExpense	42400000	usd
CY2022Q1	us-gaap	Liability For Future Policy Benefit Expected Future Policy Benefit Interest Expense LiabilityForFuturePolicyBenefitExpectedFuturePolicyBenefitInterestExpense	40800000	usd
CY2023Q1	us-gaap	Liability For Future Policy Benefits Payment For Benefits LiabilityForFuturePolicyBenefitsPaymentForBenefits	63800000	usd
CY2022Q1	us-gaap	Liability For Future Policy Benefits Payment For Benefits LiabilityForFuturePolicyBenefitsPaymentForBenefits	71000000.0	usd
CY2023Q1	us-gaap	Liability For Future Policy Benefit Expected Future Policy Benefit Original Discount Rate Before Cash Flow And Reinsurance LiabilityForFuturePolicyBenefitExpectedFuturePolicyBenefitOriginalDiscountRateBeforeCashFlowAndReinsurance	3916900000	usd
CY2022Q1	us-gaap	Liability For Future Policy Benefit Expected Future Policy Benefit Original Discount Rate Before Cash Flow And Reinsurance LiabilityForFuturePolicyBenefitExpectedFuturePolicyBenefitOriginalDiscountRateBeforeCashFlowAndReinsurance	3812200000	usd
CY2023Q1	us-gaap	Aoci Liability For Future Policy Benefit Expected Future Policy Benefit Before Tax AociLiabilityForFuturePolicyBenefitExpectedFuturePolicyBenefitBeforeTax	-217400000	usd
CY2022Q1	us-gaap	Aoci Liability For Future Policy Benefit Expected Future Policy Benefit Before Tax AociLiabilityForFuturePolicyBenefitExpectedFuturePolicyBenefitBeforeTax	536500000	usd
CY2023Q1	us-gaap	Liability For Future Policy Benefit Expected Future Policy Benefit Before Reinsurance After Discount Rate Change LiabilityForFuturePolicyBenefitExpectedFuturePolicyBenefitBeforeReinsuranceAfterDiscountRateChange	3699500000	usd
CY2022Q1	us-gaap	Liability For Future Policy Benefit Expected Future Policy Benefit Before Reinsurance After Discount Rate Change LiabilityForFuturePolicyBenefitExpectedFuturePolicyBenefitBeforeReinsuranceAfterDiscountRateChange	4348700000	usd
CY2023Q1	us-gaap	Liability For Future Policy Benefits LiabilityForFuturePolicyBenefits	2977100000	usd
CY2022Q4	us-gaap	Liability For Future Policy Benefits LiabilityForFuturePolicyBenefits	3687700000	usd
CY2023Q1	us-gaap	Liability For Future Policy Benefit Reinsurance Recoverable After Allowance LiabilityForFuturePolicyBenefitReinsuranceRecoverableAfterAllowance	0	usd
CY2022Q4	us-gaap	Liability For Future Policy Benefit Reinsurance Recoverable After Allowance LiabilityForFuturePolicyBenefitReinsuranceRecoverableAfterAllowance	0	usd
CY2023Q1	us-gaap	Liability For Future Policy Benefit After Reinsurance LiabilityForFuturePolicyBenefitAfterReinsurance	2977100000	usd
CY2022Q4	us-gaap	Liability For Future Policy Benefit After Reinsurance LiabilityForFuturePolicyBenefitAfterReinsurance	3687700000	usd
CY2023Q1	us-gaap	Liability For Future Policy Benefit Expected Future Policy Benefit Before Reinsurance After Discount Rate Change LiabilityForFuturePolicyBenefitExpectedFuturePolicyBenefitBeforeReinsuranceAfterDiscountRateChange	3699500000	usd
CY2022Q1	us-gaap	Liability For Future Policy Benefit Expected Future Policy Benefit Before Reinsurance After Discount Rate Change LiabilityForFuturePolicyBenefitExpectedFuturePolicyBenefitBeforeReinsuranceAfterDiscountRateChange	4348700000	usd
CY2023Q1	us-gaap	Liability For Future Policy Benefit Expected Net Premium Before Reinsurance After Discount Rate Change LiabilityForFuturePolicyBenefitExpectedNetPremiumBeforeReinsuranceAfterDiscountRateChange	722400000	usd
CY2022Q1	us-gaap	Liability For Future Policy Benefit Expected Net Premium Before Reinsurance After Discount Rate Change LiabilityForFuturePolicyBenefitExpectedNetPremiumBeforeReinsuranceAfterDiscountRateChange	661000000.0	usd
CY2023Q1	us-gaap	Liability For Future Policy Benefits LiabilityForFuturePolicyBenefits	2977100000	usd
CY2022Q1	us-gaap	Liability For Future Policy Benefits LiabilityForFuturePolicyBenefits	3687700000	usd
CY2023Q1	kmpr	Liability For Future Policy Benefit Before Reinsurance Deferred Profit Liability LiabilityForFuturePolicyBenefitBeforeReinsuranceDeferredProfitLiability	272600000	usd
CY2022Q1	kmpr	Liability For Future Policy Benefit Before Reinsurance Deferred Profit Liability LiabilityForFuturePolicyBenefitBeforeReinsuranceDeferredProfitLiability	213900000	usd
CY2023Q1	kmpr	Liability For Future Policy Benefit Before Reinsurance Reserves LiabilityForFuturePolicyBenefitBeforeReinsuranceReserves	149900000	usd
CY2022Q1	kmpr	Liability For Future Policy Benefit Before Reinsurance Reserves LiabilityForFuturePolicyBenefitBeforeReinsuranceReserves	202600000	usd
CY2023Q1	kmpr	Liability For Future Policy Benefit Before Reinsurance Including Insurance Reserves LiabilityForFuturePolicyBenefitBeforeReinsuranceIncludingInsuranceReserves	3399600000	usd
CY2022Q1	kmpr	Liability For Future Policy Benefit Before Reinsurance Including Insurance Reserves LiabilityForFuturePolicyBenefitBeforeReinsuranceIncludingInsuranceReserves	4104200000	usd
CY2023Q1	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	243600000	usd
CY2023Q1	us-gaap	Liability For Future Policy Benefit Expected Future Policy Benefit Undiscounted Before Reinsurance LiabilityForFuturePolicyBenefitExpectedFuturePolicyBenefitUndiscountedBeforeReinsurance	10177700000	usd
CY2022Q4	us-gaap	Liability For Future Policy Benefit Expected Future Policy Benefit Undiscounted Before Reinsurance LiabilityForFuturePolicyBenefitExpectedFuturePolicyBenefitUndiscountedBeforeReinsurance	9536900000	usd
CY2023Q1	us-gaap	Liability For Future Policy Benefit Expected Future Gross Premium Undiscounted Before Reinsurance LiabilityForFuturePolicyBenefitExpectedFutureGrossPremiumUndiscountedBeforeReinsurance	4464200000	usd
CY2022Q4	us-gaap	Liability For Future Policy Benefit Expected Future Gross Premium Undiscounted Before Reinsurance LiabilityForFuturePolicyBenefitExpectedFutureGrossPremiumUndiscountedBeforeReinsurance	3808500000	usd
CY2023Q1	us-gaap	Liability For Future Policy Benefit Expected Future Gross Premium Discounted Before Reinsurance LiabilityForFuturePolicyBenefitExpectedFutureGrossPremiumDiscountedBeforeReinsurance	2931100000	usd
CY2022Q1	us-gaap	Liability For Future Policy Benefit Expected Future Gross Premium Discounted Before Reinsurance LiabilityForFuturePolicyBenefitExpectedFutureGrossPremiumDiscountedBeforeReinsurance	2912100000	usd
CY2023Q1	us-gaap	Liability For Future Policy Benefit Gross Premium Income LiabilityForFuturePolicyBenefitGrossPremiumIncome	103800000	usd
CY2022Q1	us-gaap	Liability For Future Policy Benefit Gross Premium Income LiabilityForFuturePolicyBenefitGrossPremiumIncome	101400000	usd
CY2023Q1	us-gaap	Liability For Future Policy Benefit Interest Expense LiabilityForFuturePolicyBenefitInterestExpense	35400000	usd
CY2022Q1	us-gaap	Liability For Future Policy Benefit Interest Expense LiabilityForFuturePolicyBenefitInterestExpense	35600000	usd
CY2022Q1	us-gaap	Deferred Policy Acquisition Costs DeferredPolicyAcquisitionCosts	689600000	usd
CY2023Q1	us-gaap	Deferred Policy Acquisition Costs Text Block1 DeferredPolicyAcquisitionCostsTextBlock1	Deferred Policy Acquisition Costs<div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The following table presents the balances and changes in Deferred Policy Acquisition Costs for the Life and Health and Property and Casualty business for the three months ended March 31, 2023 and 2022: </span></div><div><span><br/></span></div><div><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"><tr><td style="width:1.0%"/><td style="width:29.163%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.384%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:9.718%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.384%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:9.718%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.384%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:9.718%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:1.700%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:9.718%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.384%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:9.718%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.384%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:9.727%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:0 1pt"/><td colspan="15" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">March 31, 2023</span></td><td colspan="3" style="padding:0 1pt"/><td colspan="15" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">March 31, 2022</span></td></tr><tr><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Life and Health</span></td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Property and Casualty</span></td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Total</span></td><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Life and Health</span></td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Property and Casualty</span></td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Total</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Balance, Beginning of Year</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">404.5 </span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">231.1 </span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">635.6 </span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">419.3 </span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">268.7 </span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">688.0 </span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> Capitalizations</span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">15.4 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">149.5 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">164.9 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">16.5 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">165.7 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">182.2 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> Amortization Expense </span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(5.6)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(142.3)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(147.9)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(7.2)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(171.5)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(178.7)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> Experience Adjustment</span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(1.1)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">— </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(1.1)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(1.9)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">— </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(1.9)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Balance, End of Period</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">413.2 </span></td><td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">238.3 </span></td><td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">651.5 </span></td><td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">426.7 </span></td><td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">262.9 </span></td><td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">689.6 </span></td><td style="background-color:#cceeff;border-bottom:3pt double #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr></table></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Costs directly associated with the successful acquisition of business, principally commissions and certain premium taxes and policy issuance costs, are deferred. Costs deferred on property and casualty insurance contracts are amortized over the period in which premiums are earned. Costs deferred on traditional life insurance products and other long-duration insurance contracts are amortized on a constant level basis over the expected life of the contracts in accordance with the assumptions used to estimate the liability for future policyholder benefits for nonparticipating traditional and limited-payment contracts. The underlying assumptions for deferred policy acquisition costs and the liability for future policyholder benefits were updated concurrently. </span></div>In the first quarter of 2023, the Company did not make any changes to future assumptions.
CY2022Q4	us-gaap	Deferred Policy Acquisition Costs DeferredPolicyAcquisitionCosts	635600000	usd
CY2021Q4	us-gaap	Deferred Policy Acquisition Costs DeferredPolicyAcquisitionCosts	688000000.0	usd
CY2023Q1	us-gaap	Deferred Policy Acquisition Costs Additions DeferredPolicyAcquisitionCostsAdditions	164900000	usd
CY2022Q1	us-gaap	Deferred Policy Acquisition Costs Additions DeferredPolicyAcquisitionCostsAdditions	182200000	usd
CY2023Q1	us-gaap	Deferred Policy Acquisition Cost Amortization Expense DeferredPolicyAcquisitionCostAmortizationExpense	147900000	usd
CY2022Q1	us-gaap	Deferred Policy Acquisition Cost Amortization Expense DeferredPolicyAcquisitionCostAmortizationExpense	178700000	usd
CY2023Q1	us-gaap	Deferred Policy Acquisition Cost Experience Adjustment DeferredPolicyAcquisitionCostExperienceAdjustment	1100000	usd
CY2022Q1	us-gaap	Deferred Policy Acquisition Cost Experience Adjustment DeferredPolicyAcquisitionCostExperienceAdjustment	1900000	usd
CY2023Q1	us-gaap	Deferred Policy Acquisition Costs DeferredPolicyAcquisitionCosts	651500000	usd
CY2023Q1	kmpr	Debt Securities Available For Sale Including Disposal Group And Discontinued Operations Amortized Cost DebtSecuritiesAvailableForSaleIncludingDisposalGroupAndDiscontinuedOperationsAmortizedCost	7923600000	usd
CY2023Q1	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	58300000	usd
CY2023Q1	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	785100000	usd
CY2023Q1	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss DebtSecuritiesAvailableForSaleAllowanceForCreditLoss	7400000	usd
CY2023Q1	kmpr	Debt Securities Available For Sale Including Disposal Group And Discontinued Operations DebtSecuritiesAvailableForSaleIncludingDisposalGroupAndDiscontinuedOperations	7189400000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss DebtSecuritiesAvailableForSaleAllowanceForCreditLoss	9600000	usd
CY2023Q1	us-gaap	Available For Sale Securities Debt Maturities Next Rolling Twelve Months Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesNextRollingTwelveMonthsAmortizedCostBasis	152700000	usd
CY2023Q1	us-gaap	Available For Sale Securities Debt Maturities Next Rolling Twelve Months Fair Value AvailableForSaleSecuritiesDebtMaturitiesNextRollingTwelveMonthsFairValue	144400000	usd
CY2023Q1	us-gaap	Available For Sale Securities Debt Maturities Rolling Year Two Through Five Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesRollingYearTwoThroughFiveAmortizedCostBasis	1000600000	usd
CY2023Q1	us-gaap	Available For Sale Securities Debt Maturities Rolling Year Two Through Five Fair Value AvailableForSaleSecuritiesDebtMaturitiesRollingYearTwoThroughFiveFairValue	969200000	usd
CY2023Q1	us-gaap	Available For Sale Securities Debt Maturities Rolling Year Six Through Ten Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesRollingYearSixThroughTenAmortizedCostBasis	1193000000	usd
CY2023Q1	us-gaap	Available For Sale Securities Debt Maturities Rolling Year Six Through Ten Fair Value AvailableForSaleSecuritiesDebtMaturitiesRollingYearSixThroughTenFairValue	1058300000	usd
CY2023Q1	us-gaap	Available For Sale Securities Debt Maturities Rolling After Year Ten Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesRollingAfterYearTenAmortizedCostBasis	3705000000	usd
CY2023Q1	us-gaap	Available For Sale Securities Debt Maturities Rolling After Year Ten Fair Value AvailableForSaleSecuritiesDebtMaturitiesRollingAfterYearTenFairValue	3305500000	usd
CY2023Q1	us-gaap	Available For Sale Securities Debt Maturities Without Single Maturity Date Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost	1872300000	usd
CY2023Q1	us-gaap	Available For Sale Securities Debt Maturities Without Single Maturity Date Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue	1712000000	usd
CY2023Q1	kmpr	Debt Securities Available For Sale Including Disposal Group And Discontinued Operations Amortized Cost DebtSecuritiesAvailableForSaleIncludingDisposalGroupAndDiscontinuedOperationsAmortizedCost	7923600000	usd
CY2023Q1	kmpr	Debt Securities Available For Sale Including Disposal Group And Discontinued Operations DebtSecuritiesAvailableForSaleIncludingDisposalGroupAndDiscontinuedOperations	7189400000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss DebtSecuritiesAvailableForSaleAllowanceForCreditLoss	9600000	usd
CY2023Q1	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Not Previously Recorded DebtSecuritiesAvailableForSaleAllowanceForCreditLossNotPreviouslyRecorded	300000	usd
CY2023Q1	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Not To Sell Before Recovery Credit Loss Previously Recorded Expense Reversal DebtSecuritiesAvailableForSaleAllowanceForCreditLossNotToSellBeforeRecoveryCreditLossPreviouslyRecordedExpenseReversal	-600000	usd
CY2023Q1	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Writeoff DebtSecuritiesAvailableForSaleAllowanceForCreditLossWriteoff	0	usd
CY2023Q1	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss DebtSecuritiesAvailableForSaleAllowanceForCreditLoss	7400000	usd
CY2021Q4	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss DebtSecuritiesAvailableForSaleAllowanceForCreditLoss	-7500000	usd
CY2022Q1	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Not Previously Recorded DebtSecuritiesAvailableForSaleAllowanceForCreditLossNotPreviouslyRecorded	-3800000	usd
CY2022Q1	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Not To Sell Before Recovery Credit Loss Previously Recorded Expense Reversal DebtSecuritiesAvailableForSaleAllowanceForCreditLossNotToSellBeforeRecoveryCreditLossPreviouslyRecordedExpenseReversal	-1300000	usd
CY2022Q1	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Writeoff DebtSecuritiesAvailableForSaleAllowanceForCreditLossWriteoff	3500000	usd
CY2022Q1	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss DebtSecuritiesAvailableForSaleAllowanceForCreditLoss	-9100000	usd
CY2022Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	243200000	usd
CY2023Q1	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	4400000	usd
CY2023Q1	kmpr	Percentage Of Equity Method Limited Liability Investments Reported Without A Lag PercentageOfEquityMethodLimitedLiabilityInvestmentsReportedWithoutALag	0.020
CY2023Q1	kmpr	Percentage Of Equity Method Limited Liability Investments Reported With A One Month Lag PercentageOfEquityMethodLimitedLiabilityInvestmentsReportedWithAOneMonthLag	0.056
CY2023Q1	kmpr	Loans Gross Insurance Policy Including Disposal Group And Discontinued Operations LoansGrossInsurancePolicyIncludingDisposalGroupAndDiscontinuedOperations	283100000	usd
CY2023Q1	us-gaap	Other Investments And Securities At Cost OtherInvestmentsAndSecuritiesAtCost	37100000	usd
CY2022Q4	us-gaap	Other Investments And Securities At Cost OtherInvestmentsAndSecuritiesAtCost	38400000	usd
CY2023Q1	kmpr	Investment In Convertible Bonds InvestmentInConvertibleBonds	45300000	usd
CY2022Q4	kmpr	Investment In Convertible Bonds InvestmentInConvertibleBonds	43300000	usd
CY2023Q1	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	93000000.0	usd
CY2022Q4	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	93600000	usd
CY2023Q1	us-gaap	Mortgage Loans On Real Estate Commercial And Consumer Net MortgageLoansOnRealEstateCommercialAndConsumerNet	85700000	usd
CY2022Q4	us-gaap	Mortgage Loans On Real Estate Commercial And Consumer Net MortgageLoansOnRealEstateCommercialAndConsumerNet	91100000	usd
CY2023Q1	us-gaap	Investments And Other Noncurrent Assets InvestmentsAndOtherNoncurrentAssets	10700000	usd
CY2022Q4	us-gaap	Investments And Other Noncurrent Assets InvestmentsAndOtherNoncurrentAssets	3500000	usd
CY2023Q1	us-gaap	Other Investments OtherInvestments	271800000	usd
CY2022Q4	us-gaap	Other Investments OtherInvestments	269900000	usd
CY2023Q1	us-gaap	Equity Securities Without Readily Determinable Fair Value Impairment Loss Cumulative Amount EquitySecuritiesWithoutReadilyDeterminableFairValueImpairmentLossCumulativeAmount	9600000	usd
CY2023Q1	us-gaap	Gross Investment Income Operating GrossInvestmentIncomeOperating	112800000	usd
CY2022Q1	us-gaap	Gross Investment Income Operating GrossInvestmentIncomeOperating	108900000	usd
CY2023Q1	us-gaap	Investment Income Investment Expense InvestmentIncomeInvestmentExpense	11000000.0	usd
CY2022Q1	us-gaap	Investment Income Investment Expense InvestmentIncomeInvestmentExpense	8900000	usd
CY2023Q1	us-gaap	Net Investment Income NetInvestmentIncome	101800000	usd
CY2022Q1	us-gaap	Net Investment Income NetInvestmentIncome	100000000.0	usd
CY2023Q1	us-gaap	Derivative Assets Liabilities At Fair Value Net DerivativeAssetsLiabilitiesAtFairValueNet	0	usd
CY2022Q1	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases	13700000	usd
CY2022Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	230000000.0	usd
CY2023Q1	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Earnings1 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1	-100000	usd
CY2023Q1	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Other Comprehensive Income Loss FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss	1700000	usd
CY2023Q1	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases	19400000	usd
CY2023Q1	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements	0	usd
CY2023Q1	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Sales FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales	41200000	usd
CY2023Q1	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Into Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3	400000	usd
CY2023Q1	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3	0	usd
CY2023Q1	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	210200000	usd
CY2021Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	251400000	usd
CY2022Q1	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Earnings1 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1	-5700000	usd
CY2022Q1	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Other Comprehensive Income Loss FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss	-3000000.0	usd
CY2022Q1	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements	0	usd
CY2022Q1	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Sales FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales	42800000	usd
CY2022Q1	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Into Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3	5300000	usd
CY2022Q1	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3	0	usd
CY2022Q1	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	218900000	usd
CY2023Q1	kmpr	Fair Value Equity Method Investments Entities That Calculate Net Asset Value Per Share Unfunded Commitments FairValueEquityMethodInvestmentsEntitiesThatCalculateNetAssetValuePerShareUnfundedCommitments	96400000	usd
CY2022Q4	kmpr	Fair Value Equity Method Investments Entities That Calculate Net Asset Value Per Share Unfunded Commitments FairValueEquityMethodInvestmentsEntitiesThatCalculateNetAssetValuePerShareUnfundedCommitments	95900000	usd
CY2023Q1	kmpr	Fair Value Alternative Investments Entities That Calculate Net Asset Value Per Share Unfunded Commitments FairValueAlternativeInvestmentsEntitiesThatCalculateNetAssetValuePerShareUnfundedCommitments	100500000	usd
CY2022Q4	kmpr	Fair Value Alternative Investments Entities That Calculate Net Asset Value Per Share Unfunded Commitments FairValueAlternativeInvestmentsEntitiesThatCalculateNetAssetValuePerShareUnfundedCommitments	96300000	usd
CY2023Q1	kmpr	Fair Value Equity Securities Fvni Entities That Calculate Net Asset Value Per Share Unfunded Commitments FairValueEquitySecuritiesFVNIEntitiesThatCalculateNetAssetValuePerShareUnfundedCommitments	0	usd
CY2022Q4	kmpr	Fair Value Equity Securities Fvni Entities That Calculate Net Asset Value Per Share Unfunded Commitments FairValueEquitySecuritiesFVNIEntitiesThatCalculateNetAssetValuePerShareUnfundedCommitments	0	usd
CY2023Q1	kmpr	Fair Value Equity Securities Fvni Entities That Calculate Net Asset Value Per Share Unfunded Commitments FairValueEquitySecuritiesFVNIEntitiesThatCalculateNetAssetValuePerShareUnfundedCommitments	0	usd
CY2022Q4	kmpr	Fair Value Equity Securities Fvni Entities That Calculate Net Asset Value Per Share Unfunded Commitments FairValueEquitySecuritiesFVNIEntitiesThatCalculateNetAssetValuePerShareUnfundedCommitments	0	usd
CY2022Q4	us-gaap	Fair Value Investments Entities That Calculate Net Asset Value Per Share Unfunded Committments FairValueInvestmentsEntitiesThatCalculateNetAssetValuePerShareUnfundedCommittments	192200000	usd
CY2023Q1	kmpr	Loans Gross Insurance Policy Including Disposal Group And Discontinued Operations LoansGrossInsurancePolicyIncludingDisposalGroupAndDiscontinuedOperations	283100000	usd
CY2023Q1	us-gaap	Other Short Term Investments OtherShortTermInvestments	278400000	usd
CY2023Q1	kmpr	Other Shortterm Investments Fair Value Disclosure OtherShorttermInvestmentsFairValueDisclosure	278400000	usd
CY2022Q4	us-gaap	Other Short Term Investments OtherShortTermInvestments	278400000	usd
CY2022Q4	kmpr	Other Shortterm Investments Fair Value Disclosure OtherShorttermInvestmentsFairValueDisclosure	278400000	usd
CY2023Q1	us-gaap	Mortgage Loans On Real Estate Commercial And Consumer Net MortgageLoansOnRealEstateCommercialAndConsumerNet	85700000	usd
CY2022Q4	us-gaap	Mortgage Loans On Real Estate Commercial And Consumer Net MortgageLoansOnRealEstateCommercialAndConsumerNet	91100000	usd
CY2023Q1	us-gaap	Life Insurance Corporate Or Bank Owned Amount LifeInsuranceCorporateOrBankOwnedAmount	595300000	usd
CY2023Q1	us-gaap	Life Insurance Corporate Or Bank Owned Amount LifeInsuranceCorporateOrBankOwnedAmount	595300000	usd
CY2022Q4	us-gaap	Life Insurance Corporate Or Bank Owned Amount LifeInsuranceCorporateOrBankOwnedAmount	586500000	usd
CY2022Q4	us-gaap	Life Insurance Corporate Or Bank Owned Amount LifeInsuranceCorporateOrBankOwnedAmount	586500000	usd
CY2023Q1	us-gaap	Other Investments And Securities At Cost OtherInvestmentsAndSecuritiesAtCost	37100000	usd
CY2023Q1	us-gaap	Equity Securities Fv Ni Current And Noncurrent EquitySecuritiesFvNiCurrentAndNoncurrent	37100000	usd
CY2022Q4	us-gaap	Other Investments And Securities At Cost OtherInvestmentsAndSecuritiesAtCost	38400000	usd
CY2022Q4	us-gaap	Equity Securities Fv Ni Current And Noncurrent EquitySecuritiesFvNiCurrentAndNoncurrent	38400000	usd
CY2023Q1	us-gaap	Long Term Debt LongTermDebt	1387500000	usd
CY2023Q1	us-gaap	Long Term Debt Fair Value LongTermDebtFairValue	1222000000	usd
CY2022Q4	us-gaap	Long Term Debt LongTermDebt	1386900000	usd
CY2022Q4	us-gaap	Long Term Debt Fair Value LongTermDebtFairValue	1195100000	usd
CY2022Q4	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	37200000	usd
CY2022Q4	us-gaap	Aoci Loss Cash Flow Hedge Cumulative Gain Loss After Tax AociLossCashFlowHedgeCumulativeGainLossAfterTax	2800000	usd
CY2023Q1	us-gaap	Aoci Liability For Future Policy Benefit After Tax AociLiabilityForFuturePolicyBenefitAfterTax	241100000	usd
CY2021Q4	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	52100000	usd
CY2021Q4	us-gaap	Aoci Loss Cash Flow Hedge Cumulative Gain Loss After Tax AociLossCashFlowHedgeCumulativeGainLossAfterTax	-1900000	usd
CY2022Q1	us-gaap	Aoci Liability For Future Policy Benefit After Tax AociLiabilityForFuturePolicyBenefitAfterTax	-849700000	usd
CY2020Q2	kmpr	Stock Repurchase Program Additional Authorized Amount StockRepurchaseProgramAdditionalAuthorizedAmount	200000000	usd
CY2014Q3	us-gaap	Stock Repurchase Program Remaining Authorized Repurchase Amount1 StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1	133300000	usd
CY2021Q4	us-gaap	Stock Repurchase Program Remaining Authorized Repurchase Amount1 StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1	333300000	usd
CY2022Q4	us-gaap	Stock Repurchase Program Remaining Authorized Repurchase Amount1 StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1	171600000	usd
CY2023Q1	us-gaap	Borrowings Under Guaranteed Investment Agreements BorrowingsUnderGuaranteedInvestmentAgreements	700600000	usd
CY2022Q4	us-gaap	Borrowings Under Guaranteed Investment Agreements BorrowingsUnderGuaranteedInvestmentAgreements	701300000	usd
CY2023Q1	us-gaap	Policyholder Account Balance Weighted Average Crediting Rate PolicyholderAccountBalanceWeightedAverageCreditingRate	0.051
CY2023Q1	us-gaap	Liabilities For Guarantees On Long Duration Contracts Guaranteed Benefit Liability Net LiabilitiesForGuaranteesOnLongDurationContractsGuaranteedBenefitLiabilityNet	306800000	usd
CY2022Q4	us-gaap	Liabilities For Guarantees On Long Duration Contracts Guaranteed Benefit Liability Net LiabilitiesForGuaranteesOnLongDurationContractsGuaranteedBenefitLiabilityNet	311400000	usd
CY2023Q1	us-gaap	Cash Surrender Value Due Policyholders Amount CashSurrenderValueDuePolicyholdersAmount	100000000	usd
CY2023Q1	us-gaap	Long Term Debt LongTermDebt	1387500000	usd
CY2023Q1	us-gaap	Variable Lease Cost VariableLeaseCost	100000	usd
CY2022Q1	us-gaap	Variable Lease Cost VariableLeaseCost	100000	usd
CY2022Q4	us-gaap	Long Term Debt LongTermDebt	1386900000	usd
CY2023Q1	us-gaap	Derivative Gain On Derivative DerivativeGainOnDerivative	5900000	usd
CY2023Q1	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	100000	usd
CY2023Q1	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	500000	usd
CY2023Q1	us-gaap	Interest Expense InterestExpense	14100000	usd
CY2023Q1	us-gaap	Interest Paid InterestPaid	24800000	usd
CY2022Q1	us-gaap	Interest Expense InterestExpense	12700000	usd
CY2022Q1	us-gaap	Interest Paid InterestPaid	22000000	usd
CY2023Q1	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	40000000.0	usd
CY2022Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	45100000	usd
CY2023Q1	us-gaap	Operating Lease Liability OperatingLeaseLiability	68500000	usd
CY2022Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	72600000	usd
CY2023Q1	us-gaap	Operating Lease Cost OperatingLeaseCost	4100000	usd
CY2022Q1	us-gaap	Operating Lease Cost OperatingLeaseCost	5600000	usd
CY2023Q1	us-gaap	Short Term Lease Cost ShortTermLeaseCost	0	usd
CY2022Q1	us-gaap	Short Term Lease Cost ShortTermLeaseCost	1200000	usd
CY2023Q1	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.036
CY2023Q1	us-gaap	Operating Lease Expense OperatingLeaseExpense	4200000	usd
CY2022Q1	us-gaap	Operating Lease Expense OperatingLeaseExpense	6900000	usd
CY2023Q1	us-gaap	Sublease Income SubleaseIncome	0	usd
CY2022Q1	us-gaap	Sublease Income SubleaseIncome	100000	usd
CY2023Q1	us-gaap	Lease Cost LeaseCost	4200000	usd
CY2022Q1	us-gaap	Lease Cost LeaseCost	6800000	usd
CY2023Q1	us-gaap	Operating Lease Payments OperatingLeasePayments	6100000	usd
CY2022Q1	us-gaap	Operating Lease Payments OperatingLeasePayments	6200000	usd
CY2023Q1	kmpr	Operating Lease Liability Reduction OperatingLeaseLiabilityReduction	5500000	usd
CY2022Q1	kmpr	Operating Lease Liability Reduction OperatingLeaseLiabilityReduction	5500000	usd
CY2023Q1	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	1400000	usd
CY2022Q1	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	1000000.0	usd
CY2022Q1	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P0Y9M18D
CY2023Q1	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P5Y7M6D
CY2022Q1	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P5Y9M18D
CY2022Q1	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.006
CY2022Q1	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.034
CY2023Q1	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	17300000	usd
CY2023Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	17600000	usd
CY2023Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	13000000.0	usd
CY2023Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	6500000	usd
CY2023Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	4200000	usd
CY2023Q1	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	17900000	usd
CY2023Q1	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	76500000	usd
CY2023Q1	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	8000000.0	usd
CY2023Q1	us-gaap	Operating Lease Liability OperatingLeaseLiability	68500000	usd
CY2023Q1	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	usd
CY2023Q1	us-gaap	Proceeds From Income Tax Refunds ProceedsFromIncomeTaxRefunds	124700000	usd
CY2022Q1	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	100000	usd

Files In Submission

Name	View Source	Status
kmpr-20230331_pre.xml	Edgar Link	unprocessable
0000860748-23-000118-index-headers.html	Edgar Link	pending
0000860748-23-000118-index.html	Edgar Link	pending
0000860748-23-000118.txt	Edgar Link	pending
0000860748-23-000118-xbrl.zip	Edgar Link	pending
Financial_Report.xlsx	Edgar Link	pending
kmpr-20230331.htm	Edgar Link	pending
kmpr-20230331.xsd	Edgar Link	pending
kmpr202303312022ex311.htm	Edgar Link	pending
kmpr202303312023ex312.htm	Edgar Link	pending
kmpr202303312023ex321.htm	Edgar Link	pending
kmpr202303312023ex322.htm	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
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FilingSummary.xml	Edgar Link	unprocessable
kmpr-20230331_cal.xml	Edgar Link	unprocessable
kmpr-20230331_def.xml	Edgar Link	unprocessable
kmpr-20230331_lab.xml	Edgar Link	unprocessable
kmpr-20230331_htm.xml	Edgar Link	completed
R38.htm	Edgar Link	pending
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report.css	Edgar Link	pending
Show.js	Edgar Link	pending

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$KMPR
Kemper Corp Stock $kmpr

2023 Q2 Form 10-Q Financial Statement

#000086074823000118 Filed on May 08, 2023

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$KMPR Kemper Corp Stock $kmpr

2023 Q2 Form 10-Q Financial Statement

#000086074823000118 Filed on May 08, 2023

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$KMPR
Kemper Corp Stock $kmpr