XML 120 R91.htm IDEA: XBRL DOCUMENT
v3.24.0.1

Long-Duration Insurance Contracts - Weighted-Average Durations of LFPB (Details) | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Whole Life |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |
Weighted-average duration | 18 years | 18 years 3 months 18 days
Term Life |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |
Weighted-average duration | 16 years 8 months 12 days | 16 years 9 months 18 days
Experience life |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |
Weighted-average duration | 10 years 3 months 18 days | 10 years 7 months 6 days
Limited-pay whole life |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |
Weighted-average duration | 22 years 1 month 6 days | 22 years 10 months 24 days
Supplemental health |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |
Weighted-average duration | 10 years 8 months 12 days | 10 years 1 month 6 days
SPIA (life contingent) |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |
Weighted-average duration | 7 years 7 months 6 days | 7 years 8 months 12 days

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: | us-gaap_LiabilityForFuturePolicyBenefitByProductSegmentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Weighted-average duration of liability for future policy benefit, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (b)(5) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480081/944-40-50-6 + Details
Name: | us-gaap_LiabilityForFuturePolicyBenefitWeightedAverageDuration
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | srt_ProductOrServiceAxis=us-gaap_WholeLifeInsuranceMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=us-gaap_TermLifeInsuranceMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=hmn_ExperienceLifeInsuranceMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=hmn_LimitedPayWholeLifeInsuranceMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=hmn_SupplementalHealthInsuranceMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=hmn_LifeContingentSPIARetirementInsuranceMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |