XML 164 R147.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Schedule 3 - Supplementary Insurance Information (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Line Items] |  |  |  |
Premiums |  | $ 3,384.4 | $ 2,350.0 | $ 2,220.0
Other Income |  | 42.2 | 4.0 | 3.2
Net Investment Income |  | 340.9 | 327.2 | 298.3
Insurance Claims and Policyholders' Benefits |  | 2,466.5 | 1,837.4 | 1,780.8
Amortization of Deferred Policy Acquisition Costs |  | 377.1 | 318.3 | 299.3
Other Insurance Expenses |  | 523.4 | 326.0 | 348.0
Deferred Policy Acquisition Costs |  | 470.0 | 365.3 |
Insurance Reserves |  | 5,433.6 | 4,537.8 |
Unearned Premiums |  | 1,424.3 | 653.9 |
Property and Casualty Insurance [Member] |  |  |  |
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Line Items] |  |  |  |
Premiums |  | 730.7 | 730.3 | 741.5
Premiums Written |  | 748.8 | 726.1 | 737.3
Other Income |  | 0.0 | 0.0 | 0.0
Net Investment Income |  | 61.8 | 58.9 | 48.6
Insurance Claims and Policyholders' Benefits |  | 538.4 | 649.5 | 545.3
Amortization of Deferred Policy Acquisition Costs |  | 117.2 | 114.6 | 115.3
Other Insurance Expenses |  | 108.3 | 103.2 | 113.7
Deferred Policy Acquisition Costs |  | 58.4 | 56.0 |
Insurance Reserves |  | 452.9 | 461.9 |
Unearned Premiums |  | 374.3 | 356.3 |
Specialty Property & Casualty Insurance [Member] |  |  |  |
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Line Items] |  |  |  |
Premiums |  | 2,027.4 | 1,005.7 | 873.3
Premiums Written |  | 2,067.4 | 1,043.5 | 883.6
Other Income |  | 2.4 | 1.1 | 0.5
Net Investment Income |  | 63.4 | 39.2 | 29.1
Insurance Claims and Policyholders' Benefits |  | 1,523.8 | 800.5 | 773.9
Amortization of Deferred Policy Acquisition Costs |  | 202.0 | 150.2 | 136.8
Other Insurance Expenses |  | 219.7 | 14.8 | 19.9
Deferred Policy Acquisition Costs |  | 121.4 | 40.2 |
Insurance Reserves |  | 1,387.0 | 514.4 |
Unearned Premiums |  | 1,025.0 | 269.3 |
Life and Health Insurance [Member] |  |  |  |
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Line Items] |  |  |  |
Premiums | [1] | 626.3 | 614.0 | 605.2
Other Income | [1] | 4.0 | 2.6 | 2.8
Net Investment Income | [1] | 210.9 | 223.2 | 214.2
Insurance Claims and Policyholders' Benefits | [1] | 404.2 | 387.4 | 461.6
Amortization of Deferred Policy Acquisition Costs | [1] | 57.9 | 53.5 | 47.2
Other Insurance Expenses | [1] | 263.2 | 258.7 | 266.7
Deferred Policy Acquisition Costs | [1] | 290.2 | 269.1 |
Insurance Reserves | [1] | 3,563.1 | 3,525.1 |
Unearned Premiums | [1] | 25.0 | 28.3 |
Other Segments [Member] |  |  |  |
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Line Items] |  |  |  |
Premiums |  | 0.0 | 0.0 | 0.0
Other Income |  | 35.8 | 0.3 | (0.1)
Net Investment Income |  | 4.8 | 5.9 | 6.4
Insurance Claims and Policyholders' Benefits |  | 0.1 | 0.0 | 0.0
Amortization of Deferred Policy Acquisition Costs |  | 0.0 | 0.0 | 0.0
Other Insurance Expenses |  | (67.8) | (50.7) | $ (52.3)
Deferred Policy Acquisition Costs |  | 0.0 | 0.0 |
Insurance Reserves |  | 30.6 | 36.4 |
Unearned Premiums |  | $ 0.0 | $ 0.0 |
[1] | The Company’s Life & Health Insurance employee-agents also market certain property and casualty insurance products under common management. Accordingly, the Company includes the results of these property and casualty insurance products in its Life & Health Insurance segment.

X
- Definition Supplementary Insurance Information, Other Income + References No definition available. + Details
Name: | kmpr_SupplementaryInsuranceInformationOtherIncome
Namespace Prefix: | kmpr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | srt_SupplementaryInsuranceInformationBySegmentLineItems
Namespace Prefix: | srt_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of amortization of deferred policy acquisition cost recognized, as disclosed in supplementary insurance information. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 235 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-16(Column I)) -URI http://asc.fasb.org/extlink&oid=34713774&loc=d3e574960-122915 + Details
Name: | us-gaap_SupplementaryInsuranceInformationAmortizationOfDeferredPolicyAcquisitionCosts
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of insurance benefit, claim, loss and settlement expenses incurred, as disclosed in supplementary insurance information. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 235 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-16(Column H)) -URI http://asc.fasb.org/extlink&oid=34713774&loc=d3e574960-122915 + Details
Name: | us-gaap_SupplementaryInsuranceInformationBenefitsClaimsLossesAndSettlementExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of deferred policy acquisition cost capitalized on contract remaining in force, as disclosed in supplementary insurance information. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 235 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-16(Column B)) -URI http://asc.fasb.org/extlink&oid=34713774&loc=d3e574960-122915 + Details
Name: | us-gaap_SupplementaryInsuranceInformationDeferredPolicyAcquisitionCosts
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of reserve for future policy claim payable and loss expense to be incurred, disclosed in supplementary insurance information. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 235 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-16(Column C)) -URI http://asc.fasb.org/extlink&oid=34713774&loc=d3e574960-122915 + Details
Name: | us-gaap_SupplementaryInsuranceInformationLiabilityForFuturePolicyBenefitsLossesClaimsAndLossExpenseReserves
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of net investment income earned, disclosed in supplementary insurance information. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 235 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-16(Column G)) -URI http://asc.fasb.org/extlink&oid=34713774&loc=d3e574960-122915 + Details
Name: | us-gaap_SupplementaryInsuranceInformationNetInvestmentIncome
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of operating expense classified as other, disclosed in supplementary insurance information. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 235 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-16(Column J)) -URI http://asc.fasb.org/extlink&oid=34713774&loc=d3e574960-122915 + Details
Name: | us-gaap_SupplementaryInsuranceInformationOtherOperatingExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of premium revenue earned, disclosed in supplementary insurance information. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 235 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-16(Column F)) -URI http://asc.fasb.org/extlink&oid=34713774&loc=d3e574960-122915 + Details
Name: | us-gaap_SupplementaryInsuranceInformationPremiumRevenue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount, after premiums ceded and assumed, of premium written, disclosed in supplementary insurance information. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 235 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-16(Column K)) -URI http://asc.fasb.org/extlink&oid=34713774&loc=d3e574960-122915 + Details
Name: | us-gaap_SupplementaryInsuranceInformationPremiumsWritten
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of premium not yet earned, disclosed in supplementary insurance information. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 235 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-16(Column D)) -URI http://asc.fasb.org/extlink&oid=34713774&loc=d3e574960-122915 + Details
Name: | us-gaap_SupplementaryInsuranceInformationUnearnedPremiums
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=kmpr_PropertyAndCasualtyInsuranceMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=kmpr_SpecialtyPropertyCasualtyInsuranceMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=kmpr_LifeAndHealthInsuranceMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=us-gaap_AllOtherSegmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |