XML 73 R57.htm IDEA: XBRL DOCUMENT
v3.25.3

Long-Duration Insurance Contracts - Actual and Expected Experience of Mortality Rate and Lapse Rate (Details) | Sep. 30, 2025 | Sep. 30, 2024
--- | --- | ---
Whole Life |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |
Mortality / Morbidity, Actual experience | 0.80% | 0.70%
Mortality / Morbidity, Expected experience | 0.80% | 0.80%
Lapses, Actual experience | 3.50% | 3.00%
Lapses, Expected experience | 3.80% | 4.40%
Term Life | Minimum |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |
Mortality / Morbidity, Actual experience | 0.10% | 0.10%
Mortality / Morbidity, Expected experience | 0.10% | 0.10%
Lapses, Actual experience | 3.80% | 3.70%
Lapses, Expected experience | 5.10% | 5.40%
Term Life | Maximum |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |
Mortality / Morbidity, Actual experience | 0.70% | 0.30%
Mortality / Morbidity, Expected experience | 1.30% | 0.80%
Lapses, Actual experience | 13.60% | 28.60%
Lapses, Expected experience | 13.40% | 12.80%
Experience life |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |
Mortality / Morbidity, Actual experience | 1.80% | 1.90%
Mortality / Morbidity, Expected experience | 1.90% | 1.70%
Lapses, Actual experience | 3.80% | 2.90%
Lapses, Expected experience | 3.00% | 3.00%
Limited-Pay Whole Life |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |
Mortality / Morbidity, Actual experience | 0.50% | 0.20%
Mortality / Morbidity, Expected experience | 0.30% | 0.30%
Lapses, Actual experience | 3.30% | 3.90%
Lapses, Expected experience | 4.00% | 4.70%
Supplemental health |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |
Mortality / Morbidity, Actual experience | 27.10% | 28.90%
Mortality / Morbidity, Expected experience | 26.50% | 26.30%
Lapses, Actual experience | 10.70% | 9.40%
Lapses, Expected experience | 10.20% | 9.70%

X
- Definition Liability For Future Policy Benefit, Lapse Rate, Actual Experience + References No definition available. + Details
Name: | hmn_LiabilityForFuturePolicyBenefitLapseRateActualExperience
Namespace Prefix: | hmn_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Liability For Future Policy Benefit, Lapse Rate, Expected Experience + References No definition available. + Details
Name: | hmn_LiabilityForFuturePolicyBenefitLapseRateExpectedExperience
Namespace Prefix: | hmn_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Liability For Future Policy Benefit, Mortality Rate, Actual Experience + References No definition available. + Details
Name: | hmn_LiabilityForFuturePolicyBenefitMortalityRateActualExperience
Namespace Prefix: | hmn_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Liability For Future Policy Benefit, Mortality Rate, Expected Experience + References No definition available. + Details
Name: | hmn_LiabilityForFuturePolicyBenefitMortalityRateExpectedExperience
Namespace Prefix: | hmn_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

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
- 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_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
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: |