$HMN
Horace Mann Educators Corp Stock $hmn

$hmn Overview Financials Valuation SEC Filings Company Website

2019 Form 10-K Financial Statement

#000162828020002596 Filed on March 02, 2020

Income Statement

Concept	2019	2018 Q4	2018
Revenue	$1.431B	$278.5M	$1.192B
YoY Change	20.05%	-8.07%	1.71%
Cost Of Revenue	$585.1M		$637.6M
YoY Change	-8.23%		9.49%
Gross Profit	$845.4M		$554.0M
YoY Change	52.59%		-5.97%
Gross Profit Margin	59.1%		46.5%
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$15.60M		$7.357M
YoY Change	112.04%		11.22%
% of Gross Profit	1.85%		1.33%
Operating Expenses	$234.6M	$303.4M	$205.4M
YoY Change	14.21%	14.58%	9.39%
Operating Profit	$610.8M		$348.6M
YoY Change	75.2%		-13.16%
Interest Expense	$15.60M	-$3.300M	$13.00M
YoY Change	19.99%	6.45%	8.81%
% of Operating Profit	2.55%		3.73%
Other Income/Expense, Net
YoY Change
Pretax Income	$236.4M	-$28.20M	$19.54M
YoY Change	1110.01%	-180.34%	-77.97%
Income Tax	$52.00M	-$7.900M	$1.194M
% Of Pretax Income	22.0%		6.11%
Net Earnings	$184.4M	-$20.26M	$18.34M
YoY Change	905.29%	-116.16%	-89.18%
Net Earnings / Revenue	12.89%	-7.27%	1.54%
Basic Earnings Per Share	$4.42	-$0.49	$0.44
Diluted Earnings Per Share	$4.40	-$0.49	$0.44
COMMON SHARES
Basic Shares Outstanding	41.70M shares	41.60M shares	41.57M shares
Diluted Shares Outstanding	41.90M shares	41.91M shares	41.89M shares

Balance Sheet

Concept	2019	2018 Q4	2018
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents		$11.90M
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets
YoY Change
LONG-TERM ASSETS
Property, Plant & Equipment	$77.00M	$40.98M	$41.00M
YoY Change	87.8%	5.23%	5.13%
Goodwill		$47.40M
YoY Change		0.0%
Intangibles		$0.00
YoY Change
Long-Term Investments	$6.639B	$8.251B	$8.251B
YoY Change	-19.54%	-1.21%	-1.21%
Other Assets
YoY Change
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$12.48B	$11.03B	$11.03B
YoY Change	13.12%	-1.49%	-1.48%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses	$17.00M
YoY Change
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	$17.00M
YoY Change
LONG-TERM LIABILITIES
Long-Term Debt	$433.0M	$298.0M	$298.0M
YoY Change	45.3%	0.34%	0.34%
Other Long-Term Liabilities	$367.0M	$290.0M	$290.0M
YoY Change	26.55%	-14.96%	-14.96%
Total Long-Term Liabilities	$800.0M	$588.0M	$588.0M
YoY Change	36.05%	-7.84%	-7.84%
TOTAL LIABILITIES
Total Short-Term Liabilities	$17.00M
Total Long-Term Liabilities	$800.0M	$588.0M	$588.0M
Total Liabilities	$10.91B	$9.741B	$9.741B
YoY Change	12.01%	0.46%	0.45%
SHAREHOLDERS EQUITY
Retained Earnings		$1.217B
YoY Change		-1.19%
Common Stock		$475.2M
YoY Change		2.34%
Preferred Stock
YoY Change
Treasury Stock (at cost)		$486.0M
YoY Change		1.06%
Treasury Stock Shares		24.85M shares
Shareholders Equity	$1.567B	$1.291B	$1.291B
YoY Change
Total Liabilities & Shareholders Equity	$12.48B	$11.03B	$11.03B
YoY Change	13.12%	-1.49%	-1.48%

Cashflow Statement

Concept	2019	2018 Q4	2018
OPERATING ACTIVITIES
Net Income	$184.4M	-$20.26M	$18.34M
YoY Change	905.29%	-116.16%	-89.18%
Depreciation, Depletion And Amortization	$15.60M		$7.357M
YoY Change	112.04%		11.22%
Cash From Operating Activities	$127.6M	-$16.60M	$200.9M
YoY Change	-36.48%	-185.57%	-21.71%
INVESTING ACTIVITIES
Capital Expenditures
YoY Change
Acquisitions	$421.5M		$0.00
YoY Change
Other Investing Activities	$49.30M	-$2.700M	$56.19M
YoY Change	-12.27%	-93.46%	118.72%
Cash From Investing Activities	$55.90M	-$2.700M	-$186.5M
YoY Change	-129.97%	-93.46%	-18.44%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-$169.9M	24.80M	-$10.11M
YoY Change	1580.51%	9.25%	-72.65%
NET CHANGE
Cash From Operating Activities	$127.6M	-16.60M	$200.9M
Cash From Investing Activities	$55.90M	-2.700M	-$186.5M
Cash From Financing Activities	-$169.9M	24.80M	-$10.11M
Net Change In Cash	$13.60M	5.500M	$4.279M
YoY Change	217.83%	587.5%	-147.32%
FREE CASH FLOW
Cash From Operating Activities	$127.6M	-$16.60M	$200.9M
Capital Expenditures
Free Cash Flow
YoY Change

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2019	dei	Amendment Flag AmendmentFlag	false
CY2019	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2019	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2019	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2019
CY2019	dei	Entity Central Index Key EntityCentralIndexKey	0000850141
CY2019	dei	Trading Symbol TradingSymbol	HMN
CY2019	hmn	Deferred Policy Acquisition Costs Corridor Around The Mean DeferredPolicyAcquisitionCostsCorridorAroundTheMean	0.0200
CY2012	hmn	Fungible Share Pool Grant Of Full Value Share Conversion Ratio FungibleSharePoolGrantOfFullValueShareConversionRatio	2.5
CY2019	hmn	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Exercisable Weighted Average Remaining Contractual Term ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExercisableWeightedAverageRemainingContractualTerm	P6Y1M9D
CY2017	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	622500	shares
CY2018	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	622500	shares
CY2018Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	7373911000	USD
CY2017	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.10
CY2018	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.14
CY2019	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.15
CY2017Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.001
CY2018Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.001
CY2019Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.001
CY2018Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	75000000	shares
CY2019Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	75000000	shares
CY2018Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	65820369	shares
CY2019Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	66088808	shares
CY2018	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2018Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.001
CY2018Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	1000000	shares
CY2018Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2019Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2017Q4	us-gaap	Proceeds From Federal Home Loan Bank Advances ProceedsFromFederalHomeLoanBankAdvances	25000000	USD
CY2017	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Lower Range Limit ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit	38.05
CY2019	dei	Document Transition Report DocumentTransitionReport	false
CY2019	dei	Entity File Number EntityFileNumber	1-10890
CY2019	dei	Entity Registrant Name EntityRegistrantName	HORACE MANN EDUCATORS CORPORATION
CY2019	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2019	dei	Document Period End Date DocumentPeriodEndDate	2019-12-31
CY2018	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Lower Range Limit ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit	38.05
CY2017	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Upper Range Limit ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit	44.75
CY2018	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Upper Range Limit ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit	44.75
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P7Y5M9D
CY2018Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	24850484	shares
CY2019	dei	Document Type DocumentType	10-K
CY2019	dei	Document Annual Report DocumentAnnualReport	true
CY2019	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	37-0911756
CY2019	dei	Entity Address Address Line1 EntityAddressAddressLine1	1 Horace Mann Plaza
CY2019	dei	Entity Address City Or Town EntityAddressCityOrTown	Springfield
CY2019	dei	Entity Address State Or Province EntityAddressStateOrProvince	IL
CY2019	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	62715-0001
CY2019	dei	City Area Code CityAreaCode	217
CY2019	dei	Local Phone Number LocalPhoneNumber	789-2500
CY2019	dei	Security12b Title Security12bTitle	Common Stock, par value $0.001 per share
CY2019	dei	Security Exchange Name SecurityExchangeName	NYSE
CY2019	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2019	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2019	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2019	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2019	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2019	dei	Entity Small Business EntitySmallBusiness	false
CY2019	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2019	dei	Entity Shell Company EntityShellCompany	false
CY2019Q2	dei	Entity Public Float EntityPublicFloat	1619700000	USD
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CY2018Q4	us-gaap	Separate Account Assets SeparateAccountAssets	2001128000	USD
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CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	25508000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	11906000	USD
CY2019Q4	us-gaap	Deferred Policy Acquisition Costs DeferredPolicyAcquisitionCosts	276668000	USD
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CY2019Q4	us-gaap	Reinsurance Recoverables On Paid Losses ReinsuranceRecoverablesOnPaidLosses	2346166000	USD
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CY2018Q4	us-gaap	Investments Investments	8250677000	USD
CY2018Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	0	USD
CY2019Q4	us-gaap	Goodwill Goodwill	49079000	USD
CY2018Q4	us-gaap	Goodwill Goodwill	47396000	USD
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CY2018Q4	us-gaap	Other Assets OtherAssets	422047000	USD
CY2019Q4	us-gaap	Separate Account Assets SeparateAccountAssets	2490469000	USD
CY2019Q4	us-gaap	Assets Assets	12478704000	USD
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CY2019Q4	us-gaap	Liability For Future Policy Benefits LiabilityForFuturePolicyBenefits	6234452000	USD
CY2018Q4	us-gaap	Liability For Future Policy Benefits LiabilityForFuturePolicyBenefits	5711193000	USD
CY2019Q4	us-gaap	Liability For Claims And Claims Adjustment Expense LiabilityForClaimsAndClaimsAdjustmentExpense	442854000	USD
CY2018Q4	us-gaap	Liability For Claims And Claims Adjustment Expense LiabilityForClaimsAndClaimsAdjustmentExpense	396714000	USD
CY2019Q4	us-gaap	Unearned Premiums UnearnedPremiums	279163000	USD
CY2018Q4	us-gaap	Unearned Premiums UnearnedPremiums	276225000	USD
CY2019Q4	hmn	Policy Liabilities PolicyLiabilities	6956469000	USD
CY2018Q4	hmn	Policy Liabilities PolicyLiabilities	6384132000	USD
CY2019Q4	hmn	Other Policyholder Fund OtherPolicyholderFund	647283000	USD
CY2018Q4	hmn	Other Policyholder Fund OtherPolicyholderFund	767988000	USD
CY2019Q4	us-gaap	Other Liabilities OtherLiabilities	384173000	USD
CY2018Q4	us-gaap	Other Liabilities OtherLiabilities	290358000	USD
CY2019Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	135000000	USD
CY2018Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	0	USD
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CY2018Q4	us-gaap	Long Term Debt LongTermDebt	297740000	USD
CY2019Q4	us-gaap	Separate Accounts Liability SeparateAccountsLiability	2490469000	USD
CY2018Q4	us-gaap	Separate Accounts Liability SeparateAccountsLiability	2001128000	USD
CY2019Q4	us-gaap	Liabilities Liabilities	10911419000	USD
CY2018Q4	us-gaap	Liabilities Liabilities	9741346000	USD
CY2019Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2018Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
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CY2019Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	480962000	USD
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CY2018Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	1216582000	USD
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	230448000	USD
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CY2019	hmn	Insurance Premiums And Contract Charges Earned InsurancePremiumsAndContractChargesEarned	897954000	USD
CY2018	hmn	Insurance Premiums And Contract Charges Earned InsurancePremiumsAndContractChargesEarned	817333000	USD
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CY2019	us-gaap	Net Investment Income NetInvestmentIncome	365064000	USD
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CY2017	us-gaap	Net Investment Income NetInvestmentIncome	373630000	USD
CY2019	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	153340000	USD
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CY2019	us-gaap	Other Income OtherIncome	14127000	USD
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CY2018	us-gaap	Interest Expense InterestExpense	13001000	USD
CY2017	us-gaap	Interest Expense InterestExpense	11948000	USD
CY2019	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	28025000	USD
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CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-80772000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	184443000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	18343000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	169459000	USD
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.42
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.44
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.10
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.40
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.44
CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.08
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	41737876	shares
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	41570492	shares
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	41364546	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	41948531	shares
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	41894232	shares
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	41564979	shares
CY2019	us-gaap	Impairment Of Investments ImpairmentOfInvestments	1380000	USD
CY2018	us-gaap	Impairment Of Investments ImpairmentOfInvestments	1530000	USD
CY2017	us-gaap	Impairment Of Investments ImpairmentOfInvestments	12620000	USD
CY2019	us-gaap	Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Before Tax Including Portion Attributable To Noncontrolling Interest OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossBeforeTaxIncludingPortionAttributableToNoncontrollingInterest	0	USD
CY2018	us-gaap	Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Before Tax Including Portion Attributable To Noncontrolling Interest OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossBeforeTaxIncludingPortionAttributableToNoncontrollingInterest	0	USD
CY2017	us-gaap	Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Before Tax Including Portion Attributable To Noncontrolling Interest OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossBeforeTaxIncludingPortionAttributableToNoncontrollingInterest	0	USD
CY2019	us-gaap	Other Than Temporary Impairment Loss Debt Securities Portion Recognized In Earnings OtherThanTemporaryImpairmentLossDebtSecuritiesPortionRecognizedInEarnings	1380000	USD
CY2018	us-gaap	Other Than Temporary Impairment Loss Debt Securities Portion Recognized In Earnings OtherThanTemporaryImpairmentLossDebtSecuritiesPortionRecognizedInEarnings	1530000	USD
CY2017	us-gaap	Other Than Temporary Impairment Loss Debt Securities Portion Recognized In Earnings OtherThanTemporaryImpairmentLossDebtSecuritiesPortionRecognizedInEarnings	12620000	USD
CY2019	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	151495000	USD
CY2018	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	3491000	USD
CY2017	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	7756000	USD
CY2019	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	7308000	USD
CY2018	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	-18323000	USD
CY2017	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	0	USD
CY2019	us-gaap	Change In Unrealized Gain Loss On Fair Value Hedging Instruments1 ChangeInUnrealizedGainLossOnFairValueHedgingInstruments1	-4083000	USD
CY2018	us-gaap	Change In Unrealized Gain Loss On Fair Value Hedging Instruments1 ChangeInUnrealizedGainLossOnFairValueHedgingInstruments1	3819000	USD
CY2017	us-gaap	Change In Unrealized Gain Loss On Fair Value Hedging Instruments1 ChangeInUnrealizedGainLossOnFairValueHedgingInstruments1	1458000	USD
CY2019	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	153340000	USD
CY2018	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	-12543000	USD
CY2017	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	-3406000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	184443000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	18343000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	169459000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	133507000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-188195000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	74405000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-1418000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-1032000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-734000	USD
CY2019	hmn	Other Comprehensive Income Loss Change In Accounting Principle Adjustment Net Of Tax OtherComprehensiveIncomeLossChangeInAccountingPrincipleAdjustmentNetOfTax	0	USD
CY2018	hmn	Other Comprehensive Income Loss Change In Accounting Principle Adjustment Net Of Tax OtherComprehensiveIncomeLossChangeInAccountingPrincipleAdjustmentNetOfTax	-15041000	USD
CY2017	hmn	Other Comprehensive Income Loss Change In Accounting Principle Adjustment Net Of Tax OtherComprehensiveIncomeLossChangeInAccountingPrincipleAdjustmentNetOfTax	0	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	134925000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-202204000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	75139000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	319368000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-183861000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	244598000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	1567285000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	1290550000	USD
CY2017Q4	us-gaap	Stockholders Equity StockholdersEquity	1501573000	USD
CY2019	us-gaap	Proceeds From Insurance Premiums Collected ProceedsFromInsurancePremiumsCollected	184443000	USD
CY2018	us-gaap	Proceeds From Insurance Premiums Collected ProceedsFromInsurancePremiumsCollected	18343000	USD
CY2017	us-gaap	Proceeds From Insurance Premiums Collected ProceedsFromInsurancePremiumsCollected	169459000	USD
CY2019	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	153340000	USD
CY2018	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	-12543000	USD
CY2017	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	-3406000	USD
CY2019	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-3806000	USD
CY2018	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	10095000	USD
CY2017	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	13385000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	15629000	USD
CY2018	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	7357000	USD
CY2017	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	6615000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	7338000	USD
CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	8346000	USD
CY2017	us-gaap	Share Based Compensation ShareBasedCompensation	8592000	USD
CY2019	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	28025000	USD
CY2018	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2017	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2019	us-gaap	Increase Decrease In Accrued Investment Income Receivable IncreaseDecreaseInAccruedInvestmentIncomeReceivable	-46858000	USD
CY2018	us-gaap	Increase Decrease In Accrued Investment Income Receivable IncreaseDecreaseInAccruedInvestmentIncomeReceivable	-4449000	USD
CY2017	us-gaap	Increase Decrease In Accrued Investment Income Receivable IncreaseDecreaseInAccruedInvestmentIncomeReceivable	3404000	USD
CY2019	us-gaap	Increase Decrease In Insurance Liabilities IncreaseDecreaseInInsuranceLiabilities	-96802000	USD
CY2018	us-gaap	Increase Decrease In Insurance Liabilities IncreaseDecreaseInInsuranceLiabilities	203370000	USD
CY2017	us-gaap	Increase Decrease In Insurance Liabilities IncreaseDecreaseInInsuranceLiabilities	119311000	USD
CY2019	us-gaap	Increase Decrease In Premiums Receivable IncreaseDecreaseInPremiumsReceivable	5031000	USD
CY2018	us-gaap	Increase Decrease In Premiums Receivable IncreaseDecreaseInPremiumsReceivable	10026000	USD
CY2017	us-gaap	Increase Decrease In Premiums Receivable IncreaseDecreaseInPremiumsReceivable	12917000	USD
CY2019	us-gaap	Increase Decrease In Deferred Policy Acquisition Costs IncreaseDecreaseInDeferredPolicyAcquisitionCosts	1274000	USD
CY2018	us-gaap	Increase Decrease In Deferred Policy Acquisition Costs IncreaseDecreaseInDeferredPolicyAcquisitionCosts	783000	USD
CY2017	us-gaap	Increase Decrease In Deferred Policy Acquisition Costs IncreaseDecreaseInDeferredPolicyAcquisitionCosts	7967000	USD
CY2019	us-gaap	Increase Decrease In Reinsurance Recoverable IncreaseDecreaseInReinsuranceRecoverable	-22006000	USD
CY2018	us-gaap	Increase Decrease In Reinsurance Recoverable IncreaseDecreaseInReinsuranceRecoverable	21317000	USD
CY2017	us-gaap	Increase Decrease In Reinsurance Recoverable IncreaseDecreaseInReinsuranceRecoverable	-11000	USD
CY2019	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-28726000	USD
CY2018	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	3383000	USD
CY2017	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	4620000	USD
CY2019	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-53406000	USD
CY2018	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	2048000	USD
CY2017	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	1692000	USD
CY2019	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	-6217000	USD
CY2018	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	-5868000	USD
CY2017	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	-6823000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	127573000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	200888000	USD
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	256586000	USD
CY2019	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	1058747000	USD
CY2018	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	1428889000	USD
CY2017	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	1569220000	USD
CY2019	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	805887000	USD
CY2018	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	625527000	USD
CY2017	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	500760000	USD
CY2018	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	13430000	USD
CY2019	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	799526000	USD
CY2018	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	737535000	USD
CY2017	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	927665000	USD
CY2019	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	15583000	USD
CY2017	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	32312000	USD
CY2019	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	33502000	USD
CY2018	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	25498000	USD
CY2017	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	53100000	USD
CY2019	us-gaap	Payments To Acquire Limited Partnership Interests PaymentsToAcquireLimitedPartnershipInterests	129389000	USD
CY2018	us-gaap	Payments To Acquire Limited Partnership Interests PaymentsToAcquireLimitedPartnershipInterests	93545000	USD
CY2017	us-gaap	Payments To Acquire Limited Partnership Interests PaymentsToAcquireLimitedPartnershipInterests	103200000	USD
CY2019	us-gaap	Proceeds From Limited Partnership Investments ProceedsFromLimitedPartnershipInvestments	91587000	USD
CY2018	us-gaap	Proceeds From Limited Partnership Investments ProceedsFromLimitedPartnershipInvestments	16997000	USD
CY2017	us-gaap	Proceeds From Limited Partnership Investments ProceedsFromLimitedPartnershipInvestments	20234000	USD
CY2019	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	49325000	USD
CY2018	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	56192000	USD
CY2017	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	25691000	USD
CY2019	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	421516000	USD
CY2018	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	USD
CY2017	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	55942000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-186499000	USD
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-228664000	USD
CY2019	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	47333000	USD
CY2018	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	46689000	USD
CY2017	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	46114000	USD
CY2019	us-gaap	Proceeds From Federal Home Loan Bank Advances ProceedsFromFederalHomeLoanBankAdvances	135000000	USD
CY2018	us-gaap	Proceeds From Federal Home Loan Bank Advances ProceedsFromFederalHomeLoanBankAdvances	0	USD
CY2017	us-gaap	Proceeds From Federal Home Loan Bank Advances ProceedsFromFederalHomeLoanBankAdvances	0	USD
CY2019	us-gaap	Proceeds From Federal Home Loan Bank Borrowings ProceedsFromFederalHomeLoanBankBorrowings	0	USD
CY2018	us-gaap	Proceeds From Federal Home Loan Bank Borrowings ProceedsFromFederalHomeLoanBankBorrowings	0	USD
CY2017	us-gaap	Proceeds From Federal Home Loan Bank Borrowings ProceedsFromFederalHomeLoanBankBorrowings	50000000	USD
CY2019	us-gaap	Payments For Repurchase Of Equity PaymentsForRepurchaseOfEquity	0	USD
CY2018	us-gaap	Payments For Repurchase Of Equity PaymentsForRepurchaseOfEquity	5088000	USD
CY2017	us-gaap	Payments For Repurchase Of Equity PaymentsForRepurchaseOfEquity	1660000	USD
CY2019	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	1730000	USD
CY2018	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	3627000	USD
CY2017	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	4190000	USD
CY2019	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	3680000	USD
CY2018	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	3165000	USD
CY2018	us-gaap	Proceeds From Annuities And Investment Certificates ProceedsFromAnnuitiesAndInvestmentCertificates	489097000	USD
CY2017	us-gaap	Additions To Contract Holders Funds AdditionsToContractHoldersFunds	4883000	USD
CY2017	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	3245000	USD
CY2019	us-gaap	Proceeds From Annuities And Investment Certificates ProceedsFromAnnuitiesAndInvestmentCertificates	637538000	USD
CY2017	us-gaap	Proceeds From Annuities And Investment Certificates ProceedsFromAnnuitiesAndInvestmentCertificates	453146000	USD
CY2019	hmn	Benefits Withdrawals And Net Transfers To Separate Account Variable Annuity Assets BenefitsWithdrawalsAndNetTransfersToSeparateAccountVariableAnnuityAssets	419001000	USD
CY2018	hmn	Benefits Withdrawals And Net Transfers To Separate Account Variable Annuity Assets BenefitsWithdrawalsAndNetTransfersToSeparateAccountVariableAnnuityAssets	473003000	USD
CY2017	hmn	Benefits Withdrawals And Net Transfers To Separate Account Variable Annuity Assets BenefitsWithdrawalsAndNetTransfersToSeparateAccountVariableAnnuityAssets	411061000	USD
CY2019	us-gaap	Repayments Of Federal Home Loan Bank Borrowings RepaymentsOfFederalHomeLoanBankBorrowings	305005000	USD
CY2018	us-gaap	Repayments Of Federal Home Loan Bank Borrowings RepaymentsOfFederalHomeLoanBankBorrowings	0	USD
CY2017	us-gaap	Repayments Of Federal Home Loan Bank Borrowings RepaymentsOfFederalHomeLoanBankBorrowings	0	USD
CY2019	hmn	Defined Contribution Plan Transfer Of Assets To Third Party Provider DefinedContributionPlanTransferOfAssetsToThirdPartyProvider	0	USD
CY2018	hmn	Defined Contribution Plan Transfer Of Assets To Third Party Provider DefinedContributionPlanTransferOfAssetsToThirdPartyProvider	0	USD
CY2017	hmn	Defined Contribution Plan Transfer Of Assets To Third Party Provider DefinedContributionPlanTransferOfAssetsToThirdPartyProvider	77898000	USD
CY2019	us-gaap	Additions To Contract Holders Funds AdditionsToContractHoldersFunds	9391000	USD
CY2018	us-gaap	Additions To Contract Holders Funds AdditionsToContractHoldersFunds	8149000	USD
CY2019	us-gaap	Withdrawal From Contract Holders Funds WithdrawalFromContractHoldersFunds	3558000	USD
CY2018	us-gaap	Withdrawal From Contract Holders Funds WithdrawalFromContractHoldersFunds	4910000	USD
CY2017	us-gaap	Withdrawal From Contract Holders Funds WithdrawalFromContractHoldersFunds	4458000	USD
CY2019	hmn	Decrease Increase In Reinsurance Deposits Financing Activities DecreaseIncreaseInReinsuranceDepositsFinancingActivities	150434000	USD
CY2018	hmn	Decrease Increase In Reinsurance Deposits Financing Activities DecreaseIncreaseInReinsuranceDepositsFinancingActivities	0	USD
CY2017	hmn	Decrease Increase In Reinsurance Deposits Financing Activities DecreaseIncreaseInReinsuranceDepositsFinancingActivities	0	USD
CY2019	us-gaap	Proceeds From Repayments Of Bank Overdrafts ProceedsFromRepaymentsOfBankOverdrafts	-24561000	USD
CY2018	us-gaap	Proceeds From Repayments Of Bank Overdrafts ProceedsFromRepaymentsOfBankOverdrafts	21872000	USD
CY2017	us-gaap	Proceeds From Repayments Of Bank Overdrafts ProceedsFromRepaymentsOfBankOverdrafts	-4748000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-169913000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-10110000	USD
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-36965000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	13602000	USD
CY2018	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	4279000	USD
CY2017	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-9043000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	11906000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	7627000	USD
CY2016Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	16670000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	25508000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	11906000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	7627000	USD
CY2019Q4	us-gaap	Restricted Cash RestrictedCash	300000	USD
CY2019Q4	hmn	Percentage Of Investment Portfolio Fair Value Pricing Services Or Index Price PercentageOfInvestmentPortfolioFairValuePricingServicesOrIndexPrice	0.941
CY2019Q4	us-gaap	Deferred Policy Acquisition Costs DeferredPolicyAcquisitionCosts	276668000	USD
CY2018Q4	us-gaap	Deferred Policy Acquisition Costs DeferredPolicyAcquisitionCosts	298742000	USD
CY2019	hmn	Amortization Period Of Acquisition Costs Related To Property And Casualty Policy Term One AmortizationPeriodOfAcquisitionCostsRelatedToPropertyAndCasualtyPolicyTermOne	P6M
CY2019	hmn	Amortization Period Of Acquisition Costs Related To Property And Casualty Policy Term Two AmortizationPeriodOfAcquisitionCostsRelatedToPropertyAndCasualtyPolicyTermTwo	P12M
CY2019	hmn	Amortization Period Of Acquisition Costs Related To Supplemental Policies AmortizationPeriodOfAcquisitionCostsRelatedToSupplementalPolicies	P6Y
CY2019	hmn	Acquisition Costs Amortization In Years For Annuity Contracts AcquisitionCostsAmortizationInYearsForAnnuityContracts	P20Y
CY2019	hmn	Amortization Period Of Acquisition Costs Related To Interest Sensitive Life Contracts AmortizationPeriodOfAcquisitionCostsRelatedToInterestSensitiveLifeContracts	P20Y
CY2019	hmn	Acquisition Costs Amortization In Years For Indexed Universal Life Contracts AcquisitionCostsAmortizationInYearsForIndexedUniversalLifeContracts	P30Y
CY2019	hmn	Acquisition Costs Amortization In Years For Individual Life Contracts Term One AcquisitionCostsAmortizationInYearsForIndividualLifeContractsTermOne	P10Y
CY2019	hmn	Acquisition Costs Amortization In Years For Individual Life Contracts Term Two AcquisitionCostsAmortizationInYearsForIndividualLifeContractsTermTwo	P15Y
CY2019	hmn	Acquisition Costs Amortization In Years For Individual Life Contracts Term Three AcquisitionCostsAmortizationInYearsForIndividualLifeContractsTermThree	P20Y
CY2019	hmn	Acquisition Costs Amortization In Years For Individual Life Contracts Term Four AcquisitionCostsAmortizationInYearsForIndividualLifeContractsTermFour	P30Y
CY2019	hmn	Percentage Of Reversion To Mean Approach Utilized To Amortize Policy Acquisition Costs PercentageOfReversionToMeanApproachUtilizedToAmortizePolicyAcquisitionCosts	0.08
CY2019	us-gaap	Deferred Policy Acquisition Cost Amortization Expense Effect Of Adjustments To Estimated Gross Profit Or Estimated Gross Margin DeferredPolicyAcquisitionCostAmortizationExpenseEffectOfAdjustmentsToEstimatedGrossProfitOrEstimatedGrossMargin	3213000	USD
CY2018	us-gaap	Deferred Policy Acquisition Cost Amortization Expense Effect Of Adjustments To Estimated Gross Profit Or Estimated Gross Margin DeferredPolicyAcquisitionCostAmortizationExpenseEffectOfAdjustmentsToEstimatedGrossProfitOrEstimatedGrossMargin	4231000	USD
CY2017	us-gaap	Deferred Policy Acquisition Cost Amortization Expense Effect Of Adjustments To Estimated Gross Profit Or Estimated Gross Margin DeferredPolicyAcquisitionCostAmortizationExpenseEffectOfAdjustmentsToEstimatedGrossProfitOrEstimatedGrossMargin	881000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	166583000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	142243000	USD
CY2019Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	106458000	USD
CY2018Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	101267000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	60125000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	40976000	USD
CY2019Q4	us-gaap	Liability For Future Policy Benefits Individual And Group Annuities And Supplementary Contracts LiabilityForFuturePolicyBenefitsIndividualAndGroupAnnuitiesAndSupplementaryContracts	4675774000	USD
CY2018Q4	us-gaap	Liability For Future Policy Benefits Individual And Group Annuities And Supplementary Contracts LiabilityForFuturePolicyBenefitsIndividualAndGroupAnnuitiesAndSupplementaryContracts	4555856000	USD
CY2019Q4	us-gaap	Liability For Future Policy Benefits Life LiabilityForFuturePolicyBenefitsLife	1558678000	USD
CY2018Q4	us-gaap	Liability For Future Policy Benefits Life LiabilityForFuturePolicyBenefitsLife	1155337000	USD
CY2019Q4	us-gaap	Liability For Future Policy Benefits LiabilityForFuturePolicyBenefits	6234452000	USD
CY2018Q4	us-gaap	Liability For Future Policy Benefits LiabilityForFuturePolicyBenefits	5711193000	USD
CY2019	hmn	Federal Home Loan Bank Purchase Of Fhlb Activity Based Common Stock As Percentage Of Borrowing Required FederalHomeLoanBankPurchaseOfFHLBActivityBasedCommonStockAsPercentageOfBorrowingRequired	0.045
CY2019	hmn	Federal Home Loan Bank Purchase Of Fhlb Activity Based Common Stock Percentage Authorized FederalHomeLoanBankPurchaseOfFHLBActivityBasedCommonStockPercentageAuthorized	0.15
CY2019	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	5200000	USD
CY2018	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	6600000	USD
CY2017	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	6500000	USD
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	282040	shares
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	223208	shares
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	222828	shares
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	6.26
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	7.16
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	6.57
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.025
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.026
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.020
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.029
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.026
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.025
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P5Y
CY2018	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P4Y9M18D
CY2017	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P4Y10M24D
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.219
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.215
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.214
CY2019Q4	hmn	Weighted Average Fair Value Of Nonvested Options Outstanding WeightedAverageFairValueOfNonvestedOptionsOutstanding	6.42
CY2019Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Stock Options EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions	2400000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	184443000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	18343000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	169459000	USD
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	41738000	shares
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	41570000	shares
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	41365000	shares
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.42
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.44
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.10
CY2019	us-gaap	Net Income Loss NetIncomeLoss	184443000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	18343000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	169459000	USD
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	41738000	shares
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	41570000	shares
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	41365000	shares
CY2019	hmn	Incremental Common Shares Attributable To Stock Options IncrementalCommonSharesAttributableToStockOptions	79000	shares
CY2018	hmn	Incremental Common Shares Attributable To Stock Options IncrementalCommonSharesAttributableToStockOptions	100000	shares
CY2017	hmn	Incremental Common Shares Attributable To Stock Options IncrementalCommonSharesAttributableToStockOptions	112000	shares
CY2019	hmn	Incremental Common Shares Attributable To Common Stock Units Related To Deferred Compensation For Employees IncrementalCommonSharesAttributableToCommonStockUnitsRelatedToDeferredCompensationForEmployees	0	shares
CY2018	hmn	Incremental Common Shares Attributable To Common Stock Units Related To Deferred Compensation For Employees IncrementalCommonSharesAttributableToCommonStockUnitsRelatedToDeferredCompensationForEmployees	25000	shares
CY2018	hmn	Tax Cuts And Jobs Act Of2017 Incomplete Accounting Change In Tax Rate Deferred Tax Liability Provisional Income Tax Expense Benefit TaxCutsAndJobsActOf2017IncompleteAccountingChangeInTaxRateDeferredTaxLiabilityProvisionalIncomeTaxExpenseBenefit	0	USD
CY2017	hmn	Tax Cuts And Jobs Act Of2017 Incomplete Accounting Change In Tax Rate Deferred Tax Liability Provisional Income Tax Expense Benefit TaxCutsAndJobsActOf2017IncompleteAccountingChangeInTaxRateDeferredTaxLiabilityProvisionalIncomeTaxExpenseBenefit	98988000	USD
CY2017	hmn	Incremental Common Shares Attributable To Common Stock Units Related To Deferred Compensation For Employees IncrementalCommonSharesAttributableToCommonStockUnitsRelatedToDeferredCompensationForEmployees	25000	shares
CY2019	hmn	Incremental Common Shares Attributable To Restricted Common Stock Units Related To Incentive Compensation IncrementalCommonSharesAttributableToRestrictedCommonStockUnitsRelatedToIncentiveCompensation	132000	shares
CY2018	hmn	Incremental Common Shares Attributable To Restricted Common Stock Units Related To Incentive Compensation IncrementalCommonSharesAttributableToRestrictedCommonStockUnitsRelatedToIncentiveCompensation	199000	shares
CY2017	hmn	Incremental Common Shares Attributable To Restricted Common Stock Units Related To Incentive Compensation IncrementalCommonSharesAttributableToRestrictedCommonStockUnitsRelatedToIncentiveCompensation	63000	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	41949000	shares
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	41894000	shares
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	41565000	shares
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.40
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.44
CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.08
CY2019	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	622500	shares
CY2019	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Lower Range Limit ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit	38.05
CY2019	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Upper Range Limit ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit	44.75
CY2019	us-gaap	Net Income Loss NetIncomeLoss	184443000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	18343000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	169459000	USD
CY2019	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	327363000	USD
CY2018	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-275094000	USD
CY2017	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	105475000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	157423000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	-16363000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	-4863000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	169940000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	-258731000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	110338000	USD
CY2019	us-gaap	Other Comprehensive Income Availableforsale Securities Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesTaxPortionAttributableToParent	36433000	USD
CY2018	us-gaap	Other Comprehensive Income Availableforsale Securities Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesTaxPortionAttributableToParent	-55495000	USD
CY2017	us-gaap	Other Comprehensive Income Availableforsale Securities Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesTaxPortionAttributableToParent	35933000	USD
CY2019	hmn	Other Comprehensive Income Loss Securities Availableforsale Adjustmentafter Tax Total Before New Accounting Principle Adoption OtherComprehensiveIncomeLossSecuritiesAvailableforsaleAdjustmentafterTaxTotalBeforeNewAccountingPrincipleAdoption	133507000	USD
CY2018	hmn	Other Comprehensive Income Loss Securities Availableforsale Adjustmentafter Tax Total Before New Accounting Principle Adoption OtherComprehensiveIncomeLossSecuritiesAvailableforsaleAdjustmentafterTaxTotalBeforeNewAccountingPrincipleAdoption	-203236000	USD
CY2017	hmn	Other Comprehensive Income Loss Securities Availableforsale Adjustmentafter Tax Total Before New Accounting Principle Adoption OtherComprehensiveIncomeLossSecuritiesAvailableforsaleAdjustmentafterTaxTotalBeforeNewAccountingPrincipleAdoption	74405000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	-1805000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	-1294000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	-1461000	USD
CY2019	us-gaap	Other Comprehensive Income Defined Benefit Plans Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansTaxPortionAttributableToParent	-387000	USD
CY2018	us-gaap	Other Comprehensive Income Defined Benefit Plans Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansTaxPortionAttributableToParent	-262000	USD
CY2017	us-gaap	Other Comprehensive Income Defined Benefit Plans Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansTaxPortionAttributableToParent	-727000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-1418000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-1032000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-734000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	319368000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-183861000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	244598000	USD
CY2017	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-3161000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	259289000	USD
CY2019	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	124364000	USD
CY2019	hmn	Other Comprehensive Income Loss Net Of Tax Adjusted OtherComprehensiveIncomeLossNetOfTaxAdjusted	134925000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	-200090000	USD
CY2018	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-12927000	USD
CY2018	hmn	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For New Accounting Pronouncements Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForNewAccountingPronouncementsNetOfTax	-15041000	USD
CY2018	hmn	Other Comprehensive Income Loss Net Of Tax Adjusted OtherComprehensiveIncomeLossNetOfTaxAdjusted	-202204000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	71978000	USD
CY2017	us-gaap	Tax Cuts And Jobs Act Of2017 Reclassification From Aoci To Retained Earnings Tax Effect TaxCutsAndJobsActOf2017ReclassificationFromAociToRetainedEarningsTaxEffect	47900000	USD
CY2017	hmn	Other Comprehensive Income Loss Net Of Tax Adjusted OtherComprehensiveIncomeLossNetOfTaxAdjusted	123039000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	157400000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	-16400000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	-4900000	USD
CY2019	us-gaap	Other Tax Expense Benefit OtherTaxExpenseBenefit	33100000	USD
CY2018	us-gaap	Other Tax Expense Benefit OtherTaxExpenseBenefit	-3400000	USD
CY2017	us-gaap	Other Tax Expense Benefit OtherTaxExpenseBenefit	-1700000	USD
CY2017Q4	hmn	Deferred Tax Liabilities Unrealized Gains And Losses On Fixed Maturity And Equity Securities DeferredTaxLiabilitiesUnrealizedGainsAndLossesOnFixedMaturityAndEquitySecurities	50000000.0	USD
CY2017Q4	hmn	Deferred Tax Assets Unrealized Gains And Losses On Fixed Maturity And Equity Securities DeferredTaxAssetsUnrealizedGainsAndLossesOnFixedMaturityAndEquitySecurities	-2100000	USD
CY2019Q1	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	13900000	USD
CY2019	hmn	Percentage Of Individuals Employed By Educational Institutions PercentageOfIndividualsEmployedByEducationalInstitutions	0.80
CY2019Q3	us-gaap	Business Acquisition Purchase Price Allocation Goodwill Expected Tax Deductible Amount BusinessAcquisitionPurchasePriceAllocationGoodwillExpectedTaxDeductibleAmount	17900000	USD
CY2019	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	374548000	USD
CY2018	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	386707000	USD
CY2017	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	383470000	USD
CY2019	us-gaap	Investment Income Investment Expense InvestmentIncomeInvestmentExpense	9484000	USD
CY2018	us-gaap	Investment Income Investment Expense InvestmentIncomeInvestmentExpense	10200000	USD
CY2017	us-gaap	Investment Income Investment Expense InvestmentIncomeInvestmentExpense	9840000	USD
CY2019	us-gaap	Net Investment Income NetInvestmentIncome	365064000	USD
CY2018	us-gaap	Net Investment Income NetInvestmentIncome	376507000	USD
CY2017	us-gaap	Net Investment Income NetInvestmentIncome	373630000	USD
CY2019	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	153340000	USD
CY2018	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	-12543000	USD
CY2017	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	-3406000	USD
CY2019	hmn	Investment Gain Loss On Reinsurance InvestmentGainLossOnReinsurance	135300000	USD
CY2019Q2	us-gaap	Reinsurance Recoverables Gross ReinsuranceRecoverablesGross	2900000000	USD
CY2019	hmn	Otherthantemporary Impairment Loss Debt Securities Portion Recognized In Earnings Impairment Write Downs OtherthantemporaryImpairmentLossDebtSecuritiesPortionRecognizedInEarningsImpairmentWriteDowns	1105000	USD
CY2018	hmn	Otherthantemporary Impairment Loss Debt Securities Portion Recognized In Earnings Impairment Write Downs OtherthantemporaryImpairmentLossDebtSecuritiesPortionRecognizedInEarningsImpairmentWriteDowns	0	USD
CY2017	hmn	Otherthantemporary Impairment Loss Debt Securities Portion Recognized In Earnings Impairment Write Downs OtherthantemporaryImpairmentLossDebtSecuritiesPortionRecognizedInEarningsImpairmentWriteDowns	1778000	USD
CY2019	hmn	Otherthan Temporary Impairment Losses Investments Portion Recognized In Earnings Change In Intent OtherthanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsChangeInIntent	275000	USD
CY2018	hmn	Otherthan Temporary Impairment Losses Investments Portion Recognized In Earnings Change In Intent OtherthanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsChangeInIntent	1530000	USD
CY2017	hmn	Otherthan Temporary Impairment Losses Investments Portion Recognized In Earnings Change In Intent OtherthanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsChangeInIntent	10842000	USD
CY2019	us-gaap	Other Than Temporary Impairment Loss Debt Securities Portion Recognized In Earnings OtherThanTemporaryImpairmentLossDebtSecuritiesPortionRecognizedInEarnings	1380000	USD
CY2018	us-gaap	Other Than Temporary Impairment Loss Debt Securities Portion Recognized In Earnings OtherThanTemporaryImpairmentLossDebtSecuritiesPortionRecognizedInEarnings	1530000	USD
CY2017	us-gaap	Other Than Temporary Impairment Loss Debt Securities Portion Recognized In Earnings OtherThanTemporaryImpairmentLossDebtSecuritiesPortionRecognizedInEarnings	12620000	USD
CY2019	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	151495000	USD
CY2018	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	3491000	USD
CY2017	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	7756000	USD
CY2019	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	7308000	USD
CY2018	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	-18323000	USD
CY2017	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	0	USD
CY2019	us-gaap	Change In Unrealized Gain Loss On Fair Value Hedging Instruments1 ChangeInUnrealizedGainLossOnFairValueHedgingInstruments1	-4083000	USD
CY2018	us-gaap	Change In Unrealized Gain Loss On Fair Value Hedging Instruments1 ChangeInUnrealizedGainLossOnFairValueHedgingInstruments1	3819000	USD
CY2017	us-gaap	Change In Unrealized Gain Loss On Fair Value Hedging Instruments1 ChangeInUnrealizedGainLossOnFairValueHedgingInstruments1	1458000	USD
CY2019	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	153340000	USD
CY2018	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	-12543000	USD
CY2017	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	-3406000	USD
CY2019Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	478866000	USD
CY2019Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	5734000	USD
CY2019Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	472720000	USD
CY2019Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	7880000	USD
CY2019Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	951586000	USD
CY2019Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	13614000	USD
CY2019Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Number Of Positions DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsNumberOfPositions	330	security
CY2019Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Number Of Positions DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerNumberOfPositions	137	security
CY2019Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Number Of Positions DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions	467	security
CY2019Q4	hmn	Fair Value As Percentage Of Aggregate Fixed Maturities And Equity Securities Fair Value For Twelve Months Or Less FairValueAsPercentageOfAggregateFixedMaturitiesAndEquitySecuritiesFairValueForTwelveMonthsOrLess	0.083
CY2019Q4	hmn	Fair Value As Percentage Of Total Fixed Maturities And Equity Securities Fair Value More Than12 Months FairValueAsPercentageOfTotalFixedMaturitiesAndEquitySecuritiesFairValueMoreThan12Months	0.082
CY2019Q4	hmn	Fair Value As Percentage Of Aggregate Fixed Maturities And Equity Securities Fair Value FairValueAsPercentageOfAggregateFixedMaturitiesAndEquitySecuritiesFairValue	0.165
CY2018Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	2497440000	USD
CY2018Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	63640000	USD
CY2018Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	889418000	USD
CY2018Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	44038000	USD
CY2018Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	3386858000	USD
CY2018Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	107678000	USD
CY2018Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Number Of Positions DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsNumberOfPositions	1052	security
CY2018Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Number Of Positions DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerNumberOfPositions	359	security
CY2018Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Number Of Positions DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions	1411	security
CY2018Q4	hmn	Fair Value As Percentage Of Aggregate Fixed Maturities And Equity Securities Fair Value For Twelve Months Or Less FairValueAsPercentageOfAggregateFixedMaturitiesAndEquitySecuritiesFairValueForTwelveMonthsOrLess	0.327
CY2018Q4	hmn	Fair Value As Percentage Of Total Fixed Maturities And Equity Securities Fair Value More Than12 Months FairValueAsPercentageOfTotalFixedMaturitiesAndEquitySecuritiesFairValueMoreThan12Months	0.117
CY2018Q4	hmn	Fair Value As Percentage Of Aggregate Fixed Maturities And Equity Securities Fair Value FairValueAsPercentageOfAggregateFixedMaturitiesAndEquitySecuritiesFairValue	0.444
CY2019Q4	hmn	Investment Grade Rate InvestmentGradeRate	0.939
CY2018Q4	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	1529000	USD
CY2017Q4	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	3825000	USD
CY2019	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions No Previous Impairment OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsNoPreviousImpairment	0	USD
CY2018	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions No Previous Impairment OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsNoPreviousImpairment	0	USD
CY2019	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions Additional Credit Losses OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsAdditionalCreditLosses	0	USD
CY2018	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions Additional Credit Losses OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsAdditionalCreditLosses	246000	USD
CY2019	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Securities Sold OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsSecuritiesSold	0	USD
CY2018	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Securities Sold OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsSecuritiesSold	2542000	USD
CY2019Q4	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	1529000	USD
CY2018Q4	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	1529000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities Next Rolling Twelve Months Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesNextRollingTwelveMonthsAmortizedCostBasis	205798000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities Next Rolling Twelve Months Fair Value AvailableForSaleSecuritiesDebtMaturitiesNextRollingTwelveMonthsFairValue	211420000	USD
CY2019Q4	hmn	Available For Sale Securities Debt Maturities Next Rolling Twelve Months Fair Value Percentage AvailableForSaleSecuritiesDebtMaturitiesNextRollingTwelveMonthsFairValuePercentage	0.036
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities Rolling Year Two Through Five Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesRollingYearTwoThroughFiveAmortizedCostBasis	1541749000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities Rolling Year Two Through Five Fair Value AvailableForSaleSecuritiesDebtMaturitiesRollingYearTwoThroughFiveFairValue	1587300000	USD
CY2019Q4	hmn	Available For Sale Securities Debt Maturities Rolling Year Two Through Five Fair Value Percentage AvailableForSaleSecuritiesDebtMaturitiesRollingYearTwoThroughFiveFairValuePercentage	0.274
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities Rolling Year Six Through Ten Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesRollingYearSixThroughTenAmortizedCostBasis	1613539000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities Rolling Year Six Through Ten Fair Value AvailableForSaleSecuritiesDebtMaturitiesRollingYearSixThroughTenFairValue	1712236000	USD
CY2019Q4	hmn	Available For Sale Securities Debt Maturities Rolling Year Six Through Ten Fair Value Percentage AvailableForSaleSecuritiesDebtMaturitiesRollingYearSixThroughTenFairValuePercentage	0.296
CY2019Q4	hmn	Available For Sale Securities Debt Maturities Rolling Year Eleven Through Twenty Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesRollingYearElevenThroughTwentyAmortizedCost	1393503000	USD
CY2019Q4	hmn	Available For Sale Securities Debt Maturities Rolling Year Eleven Through Twenty Fair Value AvailableForSaleSecuritiesDebtMaturitiesRollingYearElevenThroughTwentyFairValue	1512769000	USD
CY2019Q4	hmn	Available For Sale Securities Debt Maturities Rolling Year Eleven Through Twenty Fair Value Percentage AvailableForSaleSecuritiesDebtMaturitiesRollingYearElevenThroughTwentyFairValuePercentage	0.261
CY2019Q4	hmn	Available For Sale Securities Debt Maturities Rolling After Twenty Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesRollingAfterTwentyYearsAmortizedCost	702391000	USD
CY2019Q4	hmn	Available For Sale Securities Debt Maturities Rolling After Twenty Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesRollingAfterTwentyYearsFairValue	767951000	USD
CY2019Q4	hmn	Available For Sale Securities Debt Maturities Rolling After Twenty Years Percentage Of Fair Value AvailableForSaleSecuritiesDebtMaturitiesRollingAfterTwentyYearsPercentageOfFairValue	0.133
CY2019Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	5456980000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	5791676000	USD
CY2019Q4	hmn	Available For Sale Securities Debt Maturities Percentage Of Fair Value AvailableForSaleSecuritiesDebtMaturitiesPercentageOfFairValue	1.000
CY2019	hmn	Investment Debt Securities Average Option Adjusted Duration InvestmentDebtSecuritiesAverageOptionAdjustedDuration	P6Y
CY2019	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	805887000	USD
CY2018	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	625527000	USD
CY2017	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	500760000	USD
CY2019	hmn	Proceeds From Sale And Maturity Of Marketable Securities Excluding Fhlb Repayments ProceedsFromSaleAndMaturityOfMarketableSecuritiesExcludingFHLBRepayments	29863000	USD
CY2018	hmn	Proceeds From Sale And Maturity Of Marketable Securities Excluding Fhlb Repayments ProceedsFromSaleAndMaturityOfMarketableSecuritiesExcludingFHLBRepayments	25498000	USD
CY2017	hmn	Proceeds From Sale And Maturity Of Marketable Securities Excluding Fhlb Repayments ProceedsFromSaleAndMaturityOfMarketableSecuritiesExcludingFHLBRepayments	50113000	USD
CY2019	hmn	Investment Gain Loss On Reinsurance InvestmentGainLossOnReinsurance	135300000	USD
CY2019Q2	us-gaap	Reinsurance Recoverables Gross ReinsuranceRecoverablesGross	2900000000	USD
CY2019	hmn	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For New Accounting Pronouncements Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForNewAccountingPronouncementsNetOfTax	0	USD
CY2018	hmn	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For New Accounting Pronouncements Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForNewAccountingPronouncementsNetOfTax	-15041000	USD
CY2017	hmn	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For New Accounting Pronouncements Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForNewAccountingPronouncementsNetOfTax	0	USD
CY2019Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	383700000	USD
CY2018Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	328500000	USD
CY2019Q4	hmn	Federal Home Loan Bank Funding Agreements FederalHomeLoanBankFundingAgreements	545000000.0	USD
CY2018Q4	hmn	Federal Home Loan Bank Funding Agreements FederalHomeLoanBankFundingAgreements	675000000.0	USD
CY2019Q4	hmn	Percentage Of Investment Portfolio Fair Value Pricing Services Or Index Price PercentageOfInvestmentPortfolioFairValuePricingServicesOrIndexPrice	0.941
CY2018Q4	hmn	Percentage Of Investment Portfolio Fair Value Pricing Services Or Index Price PercentageOfInvestmentPortfolioFairValuePricingServicesOrIndexPrice	0.907
CY2018Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	248489000	USD
CY2018Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	78700000	USD
CY2019	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Into Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3	90306000	USD
CY2019	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Liability Transfers Into Level3 FairValueMeasurementWithUnobservableInputsReconciliationLiabilityTransfersIntoLevel3	0	USD
CY2019	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3	10266000	USD
CY2019	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Liability Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationLiabilityTransfersOutOfLevel3	0	USD
CY2019	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Earnings1 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1	-1067000	USD
CY2019	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings	12636000	USD
CY2019	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Other Comprehensive Income Loss FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss	11035000	USD
CY2019	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Other Comprehensive Income FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInOtherComprehensiveIncome	0	USD
CY2019	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases	2483000	USD
CY2019	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPurchases	0	USD
CY2019	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Issues FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetIssues	0	USD
CY2019	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Issues FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityIssues	10039000	USD
CY2019	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Sales FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales	608000	USD
CY2019	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Sales FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySales	0	USD
CY2019	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements	0	USD
CY2019	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements	0	USD
CY2019	hmn	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Paydowns And Maturities FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPaydownsAndMaturities	45194000	USD
CY2019	hmn	Fairvaluemeasurementwithunobservableinputsreconciliationrecurringbasisliabilitypaydownsandmaturities Fairvaluemeasurementwithunobservableinputsreconciliationrecurringbasisliabilitypaydownsandmaturities	7642000	USD
CY2019Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	295178000	USD
CY2019Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	93733000	USD
CY2017Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	230257000	USD
CY2017Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	80733000	USD
CY2018	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Into Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3	91259000	USD
CY2018	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Liability Transfers Into Level3 FairValueMeasurementWithUnobservableInputsReconciliationLiabilityTransfersIntoLevel3	0	USD
CY2018	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3	16479000	USD
CY2018	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Liability Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationLiabilityTransfersOutOfLevel3	0	USD
CY2018	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Earnings1 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1	-484000	USD
CY2018	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings	-7518000	USD
CY2018	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Other Comprehensive Income Loss FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss	-9605000	USD
CY2018	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Other Comprehensive Income FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInOtherComprehensiveIncome	0	USD
CY2018	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases	0	USD
CY2018	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPurchases	0	USD
CY2018	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Issues FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetIssues	0	USD
CY2018	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Issues FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityIssues	11183000	USD
CY2018	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Sales FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales	6326000	USD
CY2018	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Sales FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySales	0	USD
CY2018	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements	0	USD
CY2018	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements	0	USD
CY2018	hmn	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Paydowns And Maturities FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPaydownsAndMaturities	40133000	USD
CY2018	hmn	Fairvaluemeasurementwithunobservableinputsreconciliationrecurringbasisliabilitypaydownsandmaturities Fairvaluemeasurementwithunobservableinputsreconciliationrecurringbasisliabilitypaydownsandmaturities	5698000	USD
CY2018Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	248489000	USD
CY2018Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	78700000	USD
CY2019	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Earnings1 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1	-1100000	USD
CY2018	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Earnings1 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1	-500000	USD
CY2019	hmn	Fixed Indexed Annuities Term Minimum FixedIndexedAnnuitiesTermMinimum	P10Y
CY2019Q4	us-gaap	Derivative Notional Amount DerivativeNotionalAmount	318000000	USD
CY2019Q4	us-gaap	Derivative Assets DerivativeAssets	13240000	USD
CY2018Q4	us-gaap	Derivative Notional Amount DerivativeNotionalAmount	278200000	USD
CY2018Q4	us-gaap	Derivative Assets DerivativeAssets	2647000	USD
CY2019	us-gaap	Concentration Risk Credit Risk Financial Instrument Maximum Exposure ConcentrationRiskCreditRiskFinancialInstrumentMaximumExposure	300000	USD
CY2019Q4	us-gaap	Reinsurance Recoverables Gross ReinsuranceRecoverablesGross	2900000000	USD
CY2019Q2	us-gaap	Reinsurance Recoverables On Paid Losses Gross ReinsuranceRecoverablesOnPaidLossesGross	2200000000	USD
CY2019Q2	us-gaap	Reinsurance Recoverables On Paid Losses ReinsuranceRecoverablesOnPaidLosses	2300000000	USD
CY2019Q2	hmn	Investment Gain Loss On Reinsurance Net Of Tax InvestmentGainLossOnReinsuranceNetOfTax	106900000	USD
CY2018Q4	us-gaap	Goodwill Goodwill	47396000	USD
CY2019	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	28025000	USD
CY2019	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	29708000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	49079000	USD
CY2019	us-gaap	Finite Lived Intangible Asset Useful Life FiniteLivedIntangibleAssetUsefulLife	P23Y
CY2019Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	174476000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	8790000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	165686000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	14488000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	13411000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	12433000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	11577000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	10805000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	102972000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	165686000	USD
CY2019Q4	us-gaap	Indefinite Lived Intangible Assets Excluding Goodwill IndefiniteLivedIntangibleAssetsExcludingGoodwill	11531000	USD
CY2019	us-gaap	Schedule Of Liability For Unpaid Claims And Claims Adjustment Expense ScheduleOfLiabilityForUnpaidClaimsAndClaimsAdjustmentExpense	The end of the year gross reserve (before reinsurance) balances and the reinsurance recoverable balances are reflected on a gross basis in the Consolidated Balance Sheets.<div style="line-height:120%;text-align:justify;text-indent:0px;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;width:100%;border-collapse:collapse;text-align:left;"><tr><td colspan="13"/></tr><tr><td style="width:61%;"/><td style="width:1%;"/><td style="width:1%;"/><td style="width:10%;"/><td style="width:1%;"/><td style="width:1%;"/><td style="width:1%;"/><td style="width:10%;"/><td style="width:1%;"/><td style="width:1%;"/><td style="width:1%;"/><td style="width:10%;"/><td style="width:1%;"/></tr><tr><td style="vertical-align:bottom;background-color:#d9d9d6;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:1px solid #63666a;"><div style="text-align:left;font-size:9pt;"><span style="font-family:HelveticaNeueLT W1G 65 Md,sans-serif;font-size:9pt;color:#63666a;font-weight:bold;">($ in thousands)</span></div></td><td style="vertical-align:bottom;background-color:#d9d9d6;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:1px solid #63666a;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="11" style="vertical-align:bottom;border-bottom:1px solid #63666a;background-color:#d9d9d6;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:1px solid #63666a;"><div style="text-align:center;font-size:9pt;"><span style="font-family:HelveticaNeueLT W1G 65 Md,sans-serif;font-size:9pt;color:#63666a;font-weight:bold;">Years Ended December 31,</span></div></td></tr><tr><td style="vertical-align:bottom;background-color:#d9d9d6;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;background-color:#d9d9d6;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:1px solid #63666a;background-color:#d9d9d6;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><span style="font-family:HelveticaNeueLT W1G 65 Md,sans-serif;font-size:9pt;color:#63666a;font-weight:bold;">2019</span></div></td><td style="vertical-align:bottom;background-color:#d9d9d6;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:1px solid #63666a;background-color:#d9d9d6;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><span style="font-family:HelveticaNeueLT W1G 65 Md,sans-serif;font-size:9pt;color:#63666a;font-weight:bold;">2018</span></div></td><td style="vertical-align:bottom;background-color:#d9d9d6;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:1px solid #63666a;background-color:#d9d9d6;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><span style="font-family:HelveticaNeueLT W1G 65 Md,sans-serif;font-size:9pt;color:#63666a;font-weight:bold;">2017</span></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:justify;font-size:9pt;"><span style="font-family:HelveticaNeueLT W1G 55 Roman,sans-serif;font-size:9pt;color:#63666a;">Property and Casualty segment</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td></tr><tr><td style="vertical-align:bottom;background-color:#ececea;padding-left:20px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;padding-left:6px;text-indent:0px;font-size:9pt;"><span style="font-family:HelveticaNeueLT W1G 55 Roman,sans-serif;font-size:9pt;color:#63666a;">Gross reserves, beginning of year </span><span style="font-family:HelveticaNeueLT W1G 55 Roman,sans-serif;font-size:9pt;color:#63666a;"><sup style="vertical-align:top;line-height:120%;font-size:pt">(1)</sup></span></div></td><td style="vertical-align:bottom;background-color:#ececea;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#ececea;"><div style="text-align:left;font-size:9pt;"><span style="font-family:HelveticaNeueLT W1G 55 Roman,sans-serif;font-size:9pt;color:#63666a;">$</span></div></td><td style="vertical-align:bottom;background-color:#ececea;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><span style="font-family:HelveticaNeueLT W1G 55 Roman,sans-serif;font-size:9pt;color:#63666a;"><span>367,180</span></span></div></td><td style="vertical-align:bottom;background-color:#ececea;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td><td style="vertical-align:bottom;background-color:#ececea;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#ececea;"><div style="text-align:left;font-size:9pt;"><span style="font-family:HelveticaNeueLT W1G 55 Roman,sans-serif;font-size:9pt;color:#63666a;">$</span></div></td><td style="vertical-align:bottom;background-color:#ececea;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><span style="font-family:HelveticaNeueLT W1G 55 Roman,sans-serif;font-size:9pt;color:#63666a;"><span>319,182</span></span></div></td><td style="vertical-align:bottom;background-color:#ececea;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td><td style="vertical-align:bottom;background-color:#ececea;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#ececea;"><div style="text-align:left;font-size:9pt;"><span style="font-family:HelveticaNeueLT W1G 55 Roman,sans-serif;font-size:9pt;color:#63666a;">$</span></div></td><td style="vertical-align:bottom;background-color:#ececea;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><span style="font-family:HelveticaNeueLT W1G 55 Roman,sans-serif;font-size:9pt;color:#63666a;"><span>307,757</span></span></div></td><td style="vertical-align:bottom;background-color:#ececea;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td></tr><tr><td style="vertical-align:bottom;padding-left:36px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;padding-left:6px;text-indent:0px;font-size:9pt;"><span style="font-family:HelveticaNeueLT W1G 55 Roman,sans-serif;font-size:9pt;color:#63666a;">Less: reinsurance recoverables</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #63666a;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><span style="font-family:HelveticaNeueLT W1G 55 Roman,sans-serif;font-size:9pt;color:#63666a;"><span>89,725</span></span></div></td><td style="vertical-align:bottom;border-bottom:1px solid #63666a;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #63666a;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><span style="font-family:HelveticaNeueLT W1G 55 Roman,sans-serif;font-size:9pt;color:#63666a;"><span>57,409</span></span></div></td><td style="vertical-align:bottom;border-bottom:1px solid #63666a;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #63666a;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><span style="font-family:HelveticaNeueLT W1G 55 Roman,sans-serif;font-size:9pt;color:#63666a;"><span>61,199</span></span></div></td><td style="vertical-align:bottom;border-bottom:1px solid #63666a;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td></tr><tr><td style="vertical-align:bottom;background-color:#ececea;padding-left:20px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;padding-left:6px;text-indent:0px;font-size:9pt;"><span style="font-family:HelveticaNeueLT W1G 55 Roman,sans-serif;font-size:9pt;color:#63666a;">Net reserves, beginning of year </span><span style="font-family:HelveticaNeueLT W1G 55 Roman,sans-serif;font-size:9pt;color:#63666a;"><sup style="vertical-align:top;line-height:120%;font-size:pt">(2)</sup></span></div></td><td style="vertical-align:bottom;background-color:#ececea;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #63666a;background-color:#ececea;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><span style="font-family:HelveticaNeueLT W1G 55 Roman,sans-serif;font-size:9pt;color:#63666a;"><span>277,455</span></span></div></td><td style="vertical-align:bottom;border-bottom:1px solid #63666a;background-color:#ececea;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td><td style="vertical-align:bottom;background-color:#ececea;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #63666a;background-color:#ececea;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><span style="font-family:HelveticaNeueLT W1G 55 Roman,sans-serif;font-size:9pt;color:#63666a;"><span>261,773</span></span></div></td><td style="vertical-align:bottom;border-bottom:1px solid #63666a;background-color:#ececea;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td><td style="vertical-align:bottom;background-color:#ececea;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #63666a;background-color:#ececea;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><span style="font-family:HelveticaNeueLT W1G 55 Roman,sans-serif;font-size:9pt;color:#63666a;"><span>246,558</span></span></div></td><td style="vertical-align:bottom;border-bottom:1px solid #63666a;background-color:#ececea;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td></tr><tr><td style="vertical-align:bottom;padding-left:20px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;padding-left:6px;text-indent:0px;font-size:9pt;"><span style="font-family:HelveticaNeueLT W1G 55 Roman,sans-serif;font-size:9pt;color:#63666a;">Incurred claims and claim expenses:</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td></tr><tr><td style="vertical-align:bottom;background-color:#ececea;padding-left:36px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;padding-left:6px;text-indent:0px;font-size:9pt;"><span style="font-family:HelveticaNeueLT W1G 55 Roman,sans-serif;font-size:9pt;color:#63666a;">Claims occurring in the current year</span></div></td><td style="vertical-align:bottom;background-color:#ececea;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:bottom;background-color:#ececea;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><span style="font-family:HelveticaNeueLT W1G 55 Roman,sans-serif;font-size:9pt;color:#63666a;"><span>483,062</span></span></div></td><td style="vertical-align:bottom;background-color:#ececea;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td><td style="vertical-align:bottom;background-color:#ececea;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:bottom;background-color:#ececea;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><span style="font-family:HelveticaNeueLT W1G 55 Roman,sans-serif;font-size:9pt;color:#63666a;"><span>547,959</span></span></div></td><td style="vertical-align:bottom;background-color:#ececea;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td><td style="vertical-align:bottom;background-color:#ececea;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:bottom;background-color:#ececea;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><span style="font-family:HelveticaNeueLT W1G 55 Roman,sans-serif;font-size:9pt;color:#63666a;"><span>498,989</span></span></div></td><td style="vertical-align:bottom;background-color:#ececea;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td></tr><tr><td style="vertical-align:bottom;padding-left:36px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;padding-left:6px;text-indent:0px;font-size:9pt;"><span style="font-family:HelveticaNeueLT W1G 55 Roman,sans-serif;font-size:9pt;color:#63666a;">Decrease in estimated reserves for claims occurring in prior years </span><span style="font-family:HelveticaNeueLT W1G 55 Roman,sans-serif;font-size:9pt;color:#63666a;"><sup style="vertical-align:top;line-height:120%;font-size:pt">(3)</sup></span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #63666a;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><span style="font-family:HelveticaNeueLT W1G 55 Roman,sans-serif;font-size:9pt;color:#63666a;"><span>(7,500</span></span></div></td><td style="vertical-align:bottom;border-bottom:1px solid #63666a;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><span style="font-family:HelveticaNeueLT W1G 55 Roman,sans-serif;font-size:9pt;color:#63666a;">)</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #63666a;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><span style="font-family:HelveticaNeueLT W1G 55 Roman,sans-serif;font-size:9pt;color:#63666a;"><span>(300</span></span></div></td><td style="vertical-align:bottom;border-bottom:1px solid #63666a;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><span style="font-family:HelveticaNeueLT W1G 55 Roman,sans-serif;font-size:9pt;color:#63666a;">)</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #63666a;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><span style="font-family:HelveticaNeueLT W1G 55 Roman,sans-serif;font-size:9pt;color:#63666a;"><span>(2,700</span></span></div></td><td style="vertical-align:bottom;border-bottom:1px solid #63666a;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><span style="font-family:HelveticaNeueLT W1G 55 Roman,sans-serif;font-size:9pt;color:#63666a;">)</span></div></td></tr><tr><td style="vertical-align:bottom;background-color:#ececea;padding-left:52px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;padding-left:6px;text-indent:0px;font-size:9pt;"><span style="font-family:HelveticaNeueLT W1G 55 Roman,sans-serif;font-size:9pt;color:#63666a;">Total claims and claim expenses incurred </span><span style="font-family:HelveticaNeueLT W1G 55 Roman,sans-serif;font-size:9pt;color:#63666a;"><sup style="vertical-align:top;line-height:120%;font-size:pt">(4)</sup></span></div></td><td style="vertical-align:bottom;background-color:#ececea;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #63666a;background-color:#ececea;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><span style="font-family:HelveticaNeueLT W1G 55 Roman,sans-serif;font-size:9pt;color:#63666a;"><span>475,562</span></span></div></td><td style="vertical-align:bottom;border-bottom:1px solid #63666a;background-color:#ececea;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td><td style="vertical-align:bottom;background-color:#ececea;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #63666a;background-color:#ececea;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><span style="font-family:HelveticaNeueLT W1G 55 Roman,sans-serif;font-size:9pt;color:#63666a;"><span>547,659</span></span></div></td><td style="vertical-align:bottom;border-bottom:1px solid #63666a;background-color:#ececea;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td><td style="vertical-align:bottom;background-color:#ececea;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #63666a;background-color:#ececea;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><span style="font-family:HelveticaNeueLT W1G 55 Roman,sans-serif;font-size:9pt;color:#63666a;"><span>496,289</span></span></div></td><td style="vertical-align:bottom;border-bottom:1px solid #63666a;background-color:#ececea;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td></tr><tr><td style="vertical-align:bottom;padding-left:20px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;padding-left:6px;text-indent:0px;font-size:9pt;"><span style="font-family:HelveticaNeueLT W1G 55 Roman,sans-serif;font-size:9pt;color:#63666a;">Claims and claim expense payments for claims occurring during:</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td></tr><tr><td style="vertical-align:bottom;background-color:#ececea;padding-left:36px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;padding-left:6px;text-indent:0px;font-size:9pt;"><span style="font-family:HelveticaNeueLT W1G 55 Roman,sans-serif;font-size:9pt;color:#63666a;">Current year</span></div></td><td style="vertical-align:bottom;background-color:#ececea;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:bottom;background-color:#ececea;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><span style="font-family:HelveticaNeueLT W1G 55 Roman,sans-serif;font-size:9pt;color:#63666a;"><span>329,475</span></span></div></td><td style="vertical-align:bottom;background-color:#ececea;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td><td style="vertical-align:bottom;background-color:#ececea;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:bottom;background-color:#ececea;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><span style="font-family:HelveticaNeueLT W1G 55 Roman,sans-serif;font-size:9pt;color:#63666a;"><span>369,194</span></span></div></td><td style="vertical-align:bottom;background-color:#ececea;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td><td style="vertical-align:bottom;background-color:#ececea;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:bottom;background-color:#ececea;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><span style="font-family:HelveticaNeueLT W1G 55 Roman,sans-serif;font-size:9pt;color:#63666a;"><span>333,385</span></span></div></td><td style="vertical-align:bottom;background-color:#ececea;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td></tr><tr><td style="vertical-align:bottom;padding-left:36px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;padding-left:6px;text-indent:0px;font-size:9pt;"><span style="font-family:HelveticaNeueLT W1G 55 Roman,sans-serif;font-size:9pt;color:#63666a;">Prior years</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #63666a;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><span style="font-family:HelveticaNeueLT W1G 55 Roman,sans-serif;font-size:9pt;color:#63666a;"><span>157,072</span></span></div></td><td style="vertical-align:bottom;border-bottom:1px solid #63666a;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #63666a;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><span style="font-family:HelveticaNeueLT W1G 55 Roman,sans-serif;font-size:9pt;color:#63666a;"><span>162,783</span></span></div></td><td style="vertical-align:bottom;border-bottom:1px solid #63666a;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #63666a;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><span style="font-family:HelveticaNeueLT W1G 55 Roman,sans-serif;font-size:9pt;color:#63666a;"><span>147,689</span></span></div></td><td style="vertical-align:bottom;border-bottom:1px solid #63666a;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td></tr><tr><td style="vertical-align:bottom;background-color:#ececea;padding-left:52px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;padding-left:6px;text-indent:0px;font-size:9pt;"><span style="font-family:HelveticaNeueLT W1G 55 Roman,sans-serif;font-size:9pt;color:#63666a;">Total claims and claim expense payments</span></div></td><td style="vertical-align:bottom;background-color:#ececea;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #63666a;background-color:#ececea;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><span style="font-family:HelveticaNeueLT W1G 55 Roman,sans-serif;font-size:9pt;color:#63666a;"><span>486,547</span></span></div></td><td style="vertical-align:bottom;border-bottom:1px solid #63666a;background-color:#ececea;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td><td style="vertical-align:bottom;background-color:#ececea;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #63666a;background-color:#ececea;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><span style="font-family:HelveticaNeueLT W1G 55 Roman,sans-serif;font-size:9pt;color:#63666a;"><span>531,977</span></span></div></td><td style="vertical-align:bottom;border-bottom:1px solid #63666a;background-color:#ececea;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td><td style="vertical-align:bottom;background-color:#ececea;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #63666a;background-color:#ececea;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><span style="font-family:HelveticaNeueLT W1G 55 Roman,sans-serif;font-size:9pt;color:#63666a;"><span>481,074</span></span></div></td><td style="vertical-align:bottom;border-bottom:1px solid #63666a;background-color:#ececea;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td></tr><tr><td style="vertical-align:bottom;padding-left:20px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;padding-left:6px;text-indent:0px;font-size:9pt;"><span style="font-family:HelveticaNeueLT W1G 55 Roman,sans-serif;font-size:9pt;color:#63666a;">Net reserves, end of year </span><span style="font-family:HelveticaNeueLT W1G 55 Roman,sans-serif;font-size:9pt;color:#63666a;"><sup style="vertical-align:top;line-height:120%;font-size:pt">(2)</sup></span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><span style="font-family:HelveticaNeueLT W1G 55 Roman,sans-serif;font-size:9pt;color:#63666a;"><span>266,470</span></span></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><span style="font-family:HelveticaNeueLT W1G 55 Roman,sans-serif;font-size:9pt;color:#63666a;"><span>277,455</span></span></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><span style="font-family:HelveticaNeueLT W1G 55 Roman,sans-serif;font-size:9pt;color:#63666a;"><span>261,773</span></span></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td></tr><tr><td style="vertical-align:bottom;background-color:#ececea;padding-left:36px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;padding-left:6px;text-indent:0px;font-size:9pt;"><span style="font-family:HelveticaNeueLT W1G 55 Roman,sans-serif;font-size:9pt;color:#63666a;">Plus: reinsurance recoverables</span></div></td><td style="vertical-align:bottom;background-color:#ececea;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #63666a;background-color:#ececea;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><span style="font-family:HelveticaNeueLT W1G 55 Roman,sans-serif;font-size:9pt;color:#63666a;"><span>120,506</span></span></div></td><td style="vertical-align:bottom;border-bottom:1px solid #63666a;background-color:#ececea;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td><td style="vertical-align:bottom;background-color:#ececea;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #63666a;background-color:#ececea;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><span style="font-family:HelveticaNeueLT W1G 55 Roman,sans-serif;font-size:9pt;color:#63666a;"><span>89,725</span></span></div></td><td style="vertical-align:bottom;border-bottom:1px solid #63666a;background-color:#ececea;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td><td style="vertical-align:bottom;background-color:#ececea;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #63666a;background-color:#ececea;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><span style="font-family:HelveticaNeueLT W1G 55 Roman,sans-serif;font-size:9pt;color:#63666a;"><span>57,409</span></span></div></td><td style="vertical-align:bottom;border-bottom:1px solid #63666a;background-color:#ececea;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:20px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;padding-left:6px;text-indent:0px;font-size:9pt;"><span style="font-family:HelveticaNeueLT W1G 55 Roman,sans-serif;font-size:9pt;color:#63666a;">Gross reserves, end of year </span><span style="font-family:HelveticaNeueLT W1G 55 Roman,sans-serif;font-size:9pt;color:#63666a;"><sup style="vertical-align:top;line-height:120%;font-size:pt">(1)</sup></span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;border-bottom:3px double #63666a;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><span style="font-family:HelveticaNeueLT W1G 55 Roman,sans-serif;font-size:9pt;color:#63666a;">$</span></div></td><td style="vertical-align:bottom;border-bottom:3px double #63666a;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><span style="font-family:HelveticaNeueLT W1G 55 Roman,sans-serif;font-size:9pt;color:#63666a;"><span>386,976</span></span></div></td><td style="vertical-align:bottom;border-bottom:3px double #63666a;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;border-bottom:3px double #63666a;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><span style="font-family:HelveticaNeueLT W1G 55 Roman,sans-serif;font-size:9pt;color:#63666a;">$</span></div></td><td style="vertical-align:bottom;border-bottom:3px double #63666a;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><span style="font-family:HelveticaNeueLT W1G 55 Roman,sans-serif;font-size:9pt;color:#63666a;"><span>367,180</span></span></div></td><td style="vertical-align:bottom;border-bottom:3px double #63666a;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;border-bottom:3px double #63666a;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><span style="font-family:HelveticaNeueLT W1G 55 Roman,sans-serif;font-size:9pt;color:#63666a;">$</span></div></td><td style="vertical-align:bottom;border-bottom:3px double #63666a;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><span style="font-family:HelveticaNeueLT W1G 55 Roman,sans-serif;font-size:9pt;color:#63666a;"><span>319,182</span></span></div></td><td style="vertical-align:bottom;border-bottom:3px double #63666a;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td></tr></table></div></div><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:24px;"/><td/></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:8pt;padding-left:0px;"><span style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:8pt;color:#63666a;font-style:normal;font-weight:normal;text-decoration:none;"><sup style="vertical-align:top;line-height:120%;font-size:pt">(1)</sup> </span></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:8pt;"><span style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:8pt;color:#63666a;font-style:normal;font-weight:normal;text-decoration:none;">Unpaid claims and claim expenses as reported in the Consolidated Balance Sheets also include reserves for Supplemental, Retirement and Life of </span><span style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:8pt;color:#63666a;font-style:normal;font-weight:normal;text-decoration:none;"><span>$55.9 million</span></span><span style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:8pt;color:#63666a;font-style:normal;font-weight:normal;text-decoration:none;">, </span><span style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:8pt;color:#63666a;font-style:normal;font-weight:normal;text-decoration:none;"><span>$29.5 million</span></span><span style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:8pt;color:#63666a;font-style:normal;font-weight:normal;text-decoration:none;"> and </span><span style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:8pt;color:#63666a;font-style:normal;font-weight:normal;text-decoration:none;"><span>$28.6 million</span></span><span style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:8pt;color:#63666a;font-style:normal;font-weight:normal;text-decoration:none;"> as of </span><span style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:8pt;color:#63666a;font-style:normal;font-weight:normal;text-decoration:none;">December 31,</span><span style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:8pt;color:#63666a;font-style:normal;font-weight:normal;text-decoration:none;"> </span><span style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:8pt;color:#63666a;font-style:normal;font-weight:normal;text-decoration:none;">2019</span><span style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:8pt;color:#63666a;font-style:normal;font-weight:normal;text-decoration:none;">, </span><span style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:8pt;color:#63666a;font-style:normal;font-weight:normal;text-decoration:none;">2018</span><span style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:8pt;color:#63666a;font-style:normal;font-weight:normal;text-decoration:none;"> and </span><span style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:8pt;color:#63666a;font-style:normal;font-weight:normal;text-decoration:none;">2017</span><span style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:8pt;color:#63666a;font-style:normal;font-weight:normal;text-decoration:none;">, respectively, in addition to Property and Casualty reserves.</span></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:24px;"/><td/></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:8pt;padding-left:0px;"><span style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:8pt;color:#63666a;font-style:normal;font-weight:normal;text-decoration:none;"><sup style="vertical-align:top;line-height:120%;font-size:pt">(2)</sup> </span></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:8pt;"><span style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:8pt;color:#63666a;font-style:normal;font-weight:normal;text-decoration:none;">Reserves are net of anticipated reinsurance recoverables.</span></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:24px;"/><td/></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:8pt;padding-left:0px;"><span style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:8pt;color:#63666a;font-style:normal;font-weight:normal;text-decoration:none;"><sup style="vertical-align:top;line-height:120%;font-size:pt">(3)</sup> </span></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:8pt;"><span style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:8pt;color:#63666a;font-style:normal;font-weight:normal;text-decoration:none;">Shows the amounts by which the Company decreased its reserves in each of the periods indicated for claims occurring in previous periods to reflect subsequent information on such claims and changes in their projected final settlement costs. Also refer to the paragraphs below for additional information regarding the reserve development recorded in </span><span style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:8pt;color:#63666a;font-style:normal;font-weight:normal;text-decoration:none;">2019</span><span style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:8pt;color:#63666a;font-style:normal;font-weight:normal;text-decoration:none;">, </span><span style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:8pt;color:#63666a;font-style:normal;font-weight:normal;text-decoration:none;">2018</span><span style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:8pt;color:#63666a;font-style:normal;font-weight:normal;text-decoration:none;"> and </span><span style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:8pt;color:#63666a;font-style:normal;font-weight:normal;text-decoration:none;">2017</span><span style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:8pt;color:#63666a;font-style:normal;font-weight:normal;text-decoration:none;">.</span></div></td></tr></table><div style="line-height:120%;font-size:8pt;padding-left:0px;"><span style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:8pt;color:#63666a;font-style:normal;font-weight:normal;text-decoration:none;"><sup style="vertical-align:top;line-height:120%;font-size:pt">(4)</sup> </span></div><div style="line-height:120%;text-align:left;font-size:8pt;"><span style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:8pt;color:#63666a;font-style:normal;font-weight:normal;text-decoration:none;">Benefits, claims and settlement expenses as reported in the Consolidated Statements of Operations also include amounts for Supplemental, Retirement and Life of </span><span style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:8pt;color:#63666a;font-style:normal;font-weight:normal;text-decoration:none;"><span>$109.5 million</span></span><span style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:8pt;color:#63666a;font-style:normal;font-weight:normal;text-decoration:none;">, </span><span style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:8pt;color:#63666a;font-style:normal;font-weight:normal;text-decoration:none;"><span>$89.9 million</span></span><span style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:8pt;color:#63666a;font-style:normal;font-weight:normal;text-decoration:none;">, and </span><span style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:8pt;color:#63666a;font-style:normal;font-weight:normal;text-decoration:none;"><span>$86.0 million</span></span><span style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:8pt;color:#63666a;font-style:normal;font-weight:normal;text-decoration:none;"> for the years ended </span><span style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:8pt;color:#63666a;font-style:normal;font-weight:normal;text-decoration:none;">December 31,</span><span style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:8pt;color:#63666a;font-style:normal;font-weight:normal;text-decoration:none;"> </span><span style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:8pt;color:#63666a;font-style:normal;font-weight:normal;text-decoration:none;">2019</span><span style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:8pt;color:#63666a;font-style:normal;font-weight:normal;text-decoration:none;">, </span><span style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:8pt;color:#63666a;font-style:normal;font-weight:normal;text-decoration:none;">2018</span><span style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:8pt;color:#63666a;font-style:normal;font-weight:normal;text-decoration:none;"> and </span><span style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:8pt;color:#63666a;font-style:normal;font-weight:normal;text-decoration:none;">2017</span><span style="font-family:HelveticaNeueLT W1G 45 Lt,sans-serif;font-size:8pt;color:#63666a;font-style:normal;font-weight:normal;text-decoration:none;">, respectively, in addition to Property and Casualty amounts.</span></div>
CY2019	hmn	Automobile Liability Coverage Percent Reserves AutomobileLiabilityCoveragePercentReserves	0.800
CY2019	hmn	Short Tail Coverage Reserves As Percentage Of Total Reserves ShortTailCoverageReservesAsPercentageOfTotalReserves	0.200
CY2019	hmn	Long Tail Coverage Reserves As Percentage Of Reserves LongTailCoverageReservesAsPercentageOfReserves	0.800
CY2019	hmn	Percentage Of Losses Incurred PercentageOfLossesIncurred	0.990
CY2019	hmn	Potential Variability Of Property And Casualty Loss Reserves PotentialVariabilityOfPropertyAndCasualtyLossReserves	0.060
CY2019Q4	hmn	Probability Of Other Possible Outcomes Possible Impact On Net Income ProbabilityOfOtherPossibleOutcomesPossibleImpactOnNetIncome	13000000.0	USD
CY2019	hmn	Favorable Development Of Total Reserves For Property And Casualty Claims Occurring In Prior Years FavorableDevelopmentOfTotalReservesForPropertyAndCasualtyClaimsOccurringInPriorYears	7500000	USD
CY2018	hmn	Favorable Development Of Total Reserves For Property And Casualty Claims Occurring In Prior Years FavorableDevelopmentOfTotalReservesForPropertyAndCasualtyClaimsOccurringInPriorYears	300000	USD
CY2017	hmn	Favorable Development Of Total Reserves For Property And Casualty Claims Occurring In Prior Years FavorableDevelopmentOfTotalReservesForPropertyAndCasualtyClaimsOccurringInPriorYears	2700000	USD
CY2019Q4	us-gaap	Liability For Claims And Claims Adjustment Expense LiabilityForClaimsAndClaimsAdjustmentExpense	442854000	USD
CY2019Q4	hmn	Losses Incurred For Catastrophe Claims Carrying Amount LossesIncurredForCatastropheClaimsCarryingAmount	52000000.0	USD
CY2018Q4	hmn	Losses Incurred For Catastrophe Claims Carrying Amount LossesIncurredForCatastropheClaimsCarryingAmount	107300000	USD
CY2017Q4	hmn	Losses Incurred For Catastrophe Claims Carrying Amount LossesIncurredForCatastropheClaimsCarryingAmount	61800000	USD
CY2018Q4	hmn	Deferred Income Tax Liabilities Assets DeferredIncomeTaxLiabilitiesAssets	103686000	USD
CY2019Q4	us-gaap	Reinsurance Recoverables ReinsuranceRecoverables	129213000	USD
CY2018Q4	us-gaap	Reinsurance Recoverables ReinsuranceRecoverables	99510000	USD
CY2019	hmn	Direct Insurance Premiums Written And Contract Deposits DirectInsurancePremiumsWrittenAndContractDeposits	1337847000	USD
CY2019	hmn	Ceded Insurance Premiums Written And Contract Deposits CededInsurancePremiumsWrittenAndContractDeposits	23872000	USD
CY2019	hmn	Assumed Insurance Premiums Written And Contract Deposits AssumedInsurancePremiumsWrittenAndContractDeposits	10567000	USD
CY2019	hmn	Insurance Premiums Written And Contract Deposits InsurancePremiumsWrittenAndContractDeposits	1324542000	USD
CY2019	hmn	Direct Insurance Premiums And Contract Charges Earned DirectInsurancePremiumsAndContractChargesEarned	917610000	USD
CY2019	hmn	Ceded Insurance Premiums And Contract Charges Earned CededInsurancePremiumsAndContractChargesEarned	30412000	USD
CY2019	hmn	Assumed Insurance Premiums And Contract Charges Earned AssumedInsurancePremiumsAndContractChargesEarned	10756000	USD
CY2019	hmn	Insurance Premiums And Contract Charges Earned InsurancePremiumsAndContractChargesEarned	897954000	USD
CY2019	us-gaap	Policyholder Benefits And Claims Incurred Gross PolicyholderBenefitsAndClaimsIncurredGross	633874000	USD
CY2019	us-gaap	Reinsurance Effect On Claims And Benefits Incurred Amount Ceded ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountCeded	56325000	USD
CY2019	us-gaap	Reinsurance Effect On Claims And Benefits Incurred Amount Assumed ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountAssumed	7519000	USD
CY2019	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	585068000	USD
CY2018	hmn	Direct Insurance Premiums Written And Contract Deposits DirectInsurancePremiumsWrittenAndContractDeposits	1255557000	USD
CY2018	hmn	Ceded Insurance Premiums Written And Contract Deposits CededInsurancePremiumsWrittenAndContractDeposits	28773000	USD
CY2018	hmn	Assumed Insurance Premiums Written And Contract Deposits AssumedInsurancePremiumsWrittenAndContractDeposits	8259000	USD
CY2018	hmn	Insurance Premiums Written And Contract Deposits InsurancePremiumsWrittenAndContractDeposits	1235043000	USD
CY2018	hmn	Direct Insurance Premiums And Contract Charges Earned DirectInsurancePremiumsAndContractChargesEarned	841147000	USD
CY2018	hmn	Ceded Insurance Premiums And Contract Charges Earned CededInsurancePremiumsAndContractChargesEarned	28837000	USD
CY2018	hmn	Assumed Insurance Premiums And Contract Charges Earned AssumedInsurancePremiumsAndContractChargesEarned	5023000	USD
CY2018	hmn	Insurance Premiums And Contract Charges Earned InsurancePremiumsAndContractChargesEarned	817333000	USD
CY2018	us-gaap	Policyholder Benefits And Claims Incurred Gross PolicyholderBenefitsAndClaimsIncurredGross	769664000	USD
CY2018	us-gaap	Reinsurance Effect On Claims And Benefits Incurred Amount Ceded ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountCeded	136601000	USD
CY2018	us-gaap	Reinsurance Effect On Claims And Benefits Incurred Amount Assumed ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountAssumed	4497000	USD
CY2018	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	637560000	USD
CY2017	hmn	Direct Insurance Premiums Written And Contract Deposits DirectInsurancePremiumsWrittenAndContractDeposits	1244500000	USD
CY2017	hmn	Ceded Insurance Premiums Written And Contract Deposits CededInsurancePremiumsWrittenAndContractDeposits	21989000	USD
CY2017	hmn	Assumed Insurance Premiums Written And Contract Deposits AssumedInsurancePremiumsWrittenAndContractDeposits	4606000	USD
CY2017	hmn	Insurance Premiums Written And Contract Deposits InsurancePremiumsWrittenAndContractDeposits	1227117000	USD
CY2017	hmn	Direct Insurance Premiums And Contract Charges Earned DirectInsurancePremiumsAndContractChargesEarned	812099000	USD
CY2017	hmn	Ceded Insurance Premiums And Contract Charges Earned CededInsurancePremiumsAndContractChargesEarned	22036000	USD
CY2018Q4	us-gaap	Short Term Bank Loans And Notes Payable ShortTermBankLoansAndNotesPayable	0	USD
CY2019Q4	us-gaap	Debt And Capital Lease Obligations DebtAndCapitalLeaseObligations	433025000	USD
CY2018Q4	us-gaap	Debt And Capital Lease Obligations DebtAndCapitalLeaseObligations	297740000	USD
CY2019	hmn	Federal Home Loan Bank Purchase Of Fhlb Activity Based Common Stock As Percentage Of Borrowing Required FederalHomeLoanBankPurchaseOfFHLBActivityBasedCommonStockAsPercentageOfBorrowingRequired	0.045
CY2019	hmn	Federal Home Loan Bank Purchase Of Fhlb Activity Based Common Stock Percentage Authorized FederalHomeLoanBankPurchaseOfFHLBActivityBasedCommonStockPercentageAuthorized	0.15
CY2017Q4	us-gaap	Proceeds From Federal Home Loan Bank Advances ProceedsFromFederalHomeLoanBankAdvances	50000000.0	USD
CY2017Q4	us-gaap	Proceeds From Federal Home Loan Bank Advances ProceedsFromFederalHomeLoanBankAdvances	50000000.0	USD
CY2017	hmn	Assumed Insurance Premiums And Contract Charges Earned AssumedInsurancePremiumsAndContractChargesEarned	4640000	USD
CY2017	hmn	Insurance Premiums And Contract Charges Earned InsurancePremiumsAndContractChargesEarned	794703000	USD
CY2017	us-gaap	Policyholder Benefits And Claims Incurred Gross PolicyholderBenefitsAndClaimsIncurredGross	588621000	USD
CY2017	us-gaap	Reinsurance Effect On Claims And Benefits Incurred Amount Ceded ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountCeded	10472000	USD
CY2017	us-gaap	Reinsurance Effect On Claims And Benefits Incurred Amount Assumed ReinsuranceEffectOnClaimsAndBenefitsIncurredAmountAssumed	4157000	USD
CY2017	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	582306000	USD
CY2019	hmn	Percentage Of Coverage For Catastrophe Losses Above Retention Amount Scenario One PercentageOfCoverageForCatastropheLossesAboveRetentionAmountScenarioOne	0.95
CY2019	hmn	Coverage Above Retention Per Occurrence Under Layer One Catastrophe Reinsurance CoverageAboveRetentionPerOccurrenceUnderLayerOneCatastropheReinsurance	25000000.0	USD
CY2019	hmn	Retention Base Amount Per Occurrence Under Layer One RetentionBaseAmountPerOccurrenceUnderLayerOne	25000000.0	USD
CY2019	hmn	Coverage Above Retention Per Occurrence Under Layer Two Catastrophe Reinsurance CoverageAboveRetentionPerOccurrenceUnderLayerTwoCatastropheReinsurance	40000000.0	USD
CY2019	hmn	Retention Base Amount Per Occurrence Under Layer Two RetentionBaseAmountPerOccurrenceUnderLayerTwo	50000000.0	USD
CY2019	hmn	Coverage Above Retention Per Occurrence Under Layer Three Catastrophe Reinsurance CoverageAboveRetentionPerOccurrenceUnderLayerThreeCatastropheReinsurance	85000000.0	USD
CY2019	hmn	Retention Base Amount Per Occurrence Under Layer Three RetentionBaseAmountPerOccurrenceUnderLayerThree	90000000.0	USD
CY2019	hmn	Reinsured Amount Of Each Loss Above Retention In Clash Event ReinsuredAmountOfEachLossAboveRetentionInClashEvent	20000000.0	USD
CY2019	hmn	Amount Of Property Recovery Related To Risk Losses AmountOfPropertyRecoveryRelatedToRiskLosses	8000000.0	USD
CY2019	hmn	Amount Of Maximum Individual Life Insurance Risk Retained AmountOfMaximumIndividualLifeInsuranceRiskRetained	500000	USD
CY2019	hmn	Percentage Of Life Reinsured Catastrophe Risk In Excess Specified Retention Per Occurrence Amount PercentageOfLifeReinsuredCatastropheRiskInExcessSpecifiedRetentionPerOccurrenceAmount	1
CY2019	hmn	Amount Of Maximum Group Life Policy Insurance Risk Retained AmountOfMaximumGroupLifePolicyInsuranceRiskRetained	100000	USD
CY2019Q4	us-gaap	Short Term Bank Loans And Notes Payable ShortTermBankLoansAndNotesPayable	135000000	USD
CY2019Q4	us-gaap	Federal Home Loan Bank Advances Interest Rate FederalHomeLoanBankAdvancesInterestRate	0.0199
CY2019Q4	hmn	Current Income Tax Liabilities Assets CurrentIncomeTaxLiabilitiesAssets	-12184000	USD
CY2018Q4	hmn	Current Income Tax Liabilities Assets CurrentIncomeTaxLiabilitiesAssets	-20793000	USD
CY2019Q4	hmn	Deferred Income Tax Liabilities Assets DeferredIncomeTaxLiabilitiesAssets	160624000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Unearned Premiums Reserve DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsUnearnedPremiumsReserve	12103000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Unearned Premiums Reserve DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsUnearnedPremiumsReserve	12112000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	8866000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	6866000	USD
CY2019Q4	hmn	Deferred Tax Assets Tax Deferred Expense Reinsurance Commissions DeferredTaxAssetsTaxDeferredExpenseReinsuranceCommissions	6804000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Impairment Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsImpairmentLosses	1245000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Impairment Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsImpairmentLosses	1295000	USD
CY2019Q4	hmn	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Pensions And Post Retirement Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensionsAndPostRetirementBenefits	2875000	USD
CY2018Q4	hmn	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Pensions And Post Retirement Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensionsAndPostRetirementBenefits	3254000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Loss Reserves DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsLossReserves	2530000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Loss Reserves DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsLossReserves	2772000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Postretirement Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits	285000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Postretirement Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits	302000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Charitable Contribution Carryforwards DeferredTaxAssetsCharitableContributionCarryforwards	0	USD
CY2018Q4	us-gaap	Deferred Tax Assets Charitable Contribution Carryforwards DeferredTaxAssetsCharitableContributionCarryforwards	89000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	3803000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	10969000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	38511000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	37659000	USD
CY2019Q4	hmn	Deferred Tax Liabilities Investments Net Unrealized Gains On Fixed Maturities And Equity Securities DeferredTaxLiabilitiesInvestmentsNetUnrealizedGainsOnFixedMaturitiesAndEquitySecurities	74645000	USD
CY2018Q4	hmn	Deferred Tax Liabilities Investments Net Unrealized Gains On Fixed Maturities And Equity Securities DeferredTaxLiabilitiesInvestmentsNetUnrealizedGainsOnFixedMaturitiesAndEquitySecurities	32897000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Deferred Expense DeferredTaxLiabilitiesDeferredExpense	49326000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Deferred Expense DeferredTaxLiabilitiesDeferredExpense	60330000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Deferred Policy Acquisition Cost DeferredTaxLiabilitiesDeferredExpenseDeferredPolicyAcquisitionCost	38210000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Deferred Policy Acquisition Cost DeferredTaxLiabilitiesDeferredExpenseDeferredPolicyAcquisitionCost	9304000	USD
CY2019Q4	hmn	Deferred Tax Liabilities Deferred Expense Deferred Policy Acquisition Cost Transitional Rule DeferredTaxLiabilitiesDeferredExpenseDeferredPolicyAcquisitionCostTransitionalRule	12786000	USD
CY2018Q4	hmn	Deferred Tax Liabilities Deferred Expense Deferred Policy Acquisition Cost Transitional Rule DeferredTaxLiabilitiesDeferredExpenseDeferredPolicyAcquisitionCostTransitionalRule	14910000	USD
CY2019Q4	hmn	Deferred Tax Liabilities Tax Deferred Expense Reservesand Accruals Loss Reserves Transitional Rule DeferredTaxLiabilitiesTaxDeferredExpenseReservesandAccrualsLossReservesTransitionalRule	947000	USD
CY2018Q4	hmn	Deferred Tax Liabilities Tax Deferred Expense Reservesand Accruals Loss Reserves Transitional Rule DeferredTaxLiabilitiesTaxDeferredExpenseReservesandAccrualsLossReservesTransitionalRule	1203000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Investments DeferredTaxLiabilitiesInvestments	15718000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Investments DeferredTaxLiabilitiesInvestments	17531000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	2021000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	2557000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	5482000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	2613000	USD
CY2019Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	199135000	USD
CY2018Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	141345000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	160624000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	103686000	USD
CY2019Q4	us-gaap	Operating Loss Carryforwards OperatingLossCarryforwards	12711000	USD
CY2019Q4	hmn	Operating Loss Carryforwards Indefinite OperatingLossCarryforwardsIndefinite	5397000	USD
CY2019	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	31518000	USD
CY2018	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	4152000	USD
CY2017	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	3813000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	20488000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-2958000	USD
CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-84585000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	52006000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1194000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-80772000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2017	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
CY2019	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	49654000	USD
CY2018	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	4103000	USD
CY2017	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	31041000	USD
CY2019	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	4159000	USD
CY2018	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	3726000	USD
CY2017	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	5335000	USD
CY2019	us-gaap	Income Tax Reconciliation Deductions Dividends IncomeTaxReconciliationDeductionsDividends	1392000	USD
CY2018	us-gaap	Income Tax Reconciliation Deductions Dividends IncomeTaxReconciliationDeductionsDividends	412000	USD
CY2017	us-gaap	Income Tax Reconciliation Deductions Dividends IncomeTaxReconciliationDeductionsDividends	4810000	USD
CY2019	us-gaap	Income Tax Reconciliation Nondeductible Expense Impairment Losses IncomeTaxReconciliationNondeductibleExpenseImpairmentLosses	5885000	USD
CY2018	us-gaap	Income Tax Reconciliation Nondeductible Expense Impairment Losses IncomeTaxReconciliationNondeductibleExpenseImpairmentLosses	0	USD
CY2017	us-gaap	Income Tax Reconciliation Nondeductible Expense Impairment Losses IncomeTaxReconciliationNondeductibleExpenseImpairmentLosses	0	USD
CY2019	hmn	Tax Cuts And Jobs Act Of2017 Incomplete Accounting Change In Tax Rate Deferred Tax Liability Provisional Income Tax Expense Benefit TaxCutsAndJobsActOf2017IncompleteAccountingChangeInTaxRateDeferredTaxLiabilityProvisionalIncomeTaxExpenseBenefit	0	USD
CY2019	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	272000	USD
CY2018	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	-1134000	USD
CY2017	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	-3258000	USD
CY2019	hmn	Effective Tax Rate Reconciliation Nondeductible Expense Compensation Deduction Limitation Amount EffectiveTaxRateReconciliationNondeductibleExpenseCompensationDeductionLimitationAmount	680000	USD
CY2018	hmn	Effective Tax Rate Reconciliation Nondeductible Expense Compensation Deduction Limitation Amount EffectiveTaxRateReconciliationNondeductibleExpenseCompensationDeductionLimitationAmount	1754000	USD
CY2017	hmn	Effective Tax Rate Reconciliation Nondeductible Expense Compensation Deduction Limitation Amount EffectiveTaxRateReconciliationNondeductibleExpenseCompensationDeductionLimitationAmount	326000	USD
CY2019	us-gaap	Income Tax Reconciliation Prior Year Income Taxes IncomeTaxReconciliationPriorYearIncomeTaxes	-716000	USD
CY2018	us-gaap	Income Tax Reconciliation Prior Year Income Taxes IncomeTaxReconciliationPriorYearIncomeTaxes	300000	USD
CY2017	us-gaap	Income Tax Reconciliation Prior Year Income Taxes IncomeTaxReconciliationPriorYearIncomeTaxes	-293000	USD
CY2019	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	1782000	USD
CY2018	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	309000	USD
CY2017	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	545000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	52006000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1194000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-80772000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	1734000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	1790000	USD
CY2016Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	1594000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	109000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2017	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	101000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2018	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	152000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	123000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	96000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	422000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	USD
CY2018	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	USD
CY2017	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	USD
CY2019	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	0	USD
CY2018	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	0	USD
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	719015	shares
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	889438	shares
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	1966000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	327000	USD
CY2019	us-gaap	Short Term Lease Cost ShortTermLeaseCost	208000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	1734000	USD
CY2019	us-gaap	Lease Cost LeaseCost	4049000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	1790000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Renewal Term LesseeOperatingLeaseRenewalTerm	P25Y
CY2019	us-gaap	Operating Lease Cost OperatingLeaseCost	3841000	USD
CY2019	us-gaap	Operating Lease Payments OperatingLeasePayments	3447000	USD
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	16483000	USD
CY2019Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	17499000	USD
CY2019Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P4Y6M3D
CY2019Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0378
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	4440000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	4285000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	4156000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	3459000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	1929000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	787000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	19056000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	1557000	USD
CY2019Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	17499000	USD
CY2017	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	48440	shares
CY2017	hmn	Treasury Stock Percentageof Outstanding Shares Reacquired TreasuryStockPercentageofOutstandingSharesReacquired	0.001
CY2016	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	1700000	USD
CY2016	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	34.28
CY2018	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	129112	shares
CY2018	hmn	Treasury Stock Percentageof Outstanding Shares Reacquired TreasuryStockPercentageofOutstandingSharesReacquired	0.003
CY2017	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	5100000	USD
CY2017	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	39.41
CY2019	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	2977162	shares
CY2019	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	25.94
CY2019Q4	us-gaap	Stock Repurchase Program Remaining Authorized Repurchase Amount1 StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1	22800000	USD
CY2019Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	24850484	shares
CY2019Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	1000000	shares
CY2019Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.001
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	908557	shares
CY2019Q4	hmn	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Exercisable Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExercisableOutstandingNumber	368700	shares
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	774821	shares
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	39.97
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	84209	shares
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	908557	shares
CY2019	hmn	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Exercisable Forfeited In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExercisableForfeitedInPeriod	0	shares
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	37.82
CY2019Q4	hmn	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Exercisable Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExercisableOutstandingNumber	368700	shares
CY2019	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	64095	shares
CY2019	hmn	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Exercisable Exercised In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExercisableExercisedInPeriod	64095	shares
CY2019Q4	hmn	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExercisableWeightedAverageExercisePrice	34.81
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	1008249	shares
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	1149679	shares
CY2019Q4	hmn	Share Based Compensation Arrangement By Share Based Payment Awards Equity Instruments Outstanding ShareBasedCompensationArrangementByShareBasedPaymentAwardsEquityInstrumentsOutstanding	1851715	shares
CY2018Q4	hmn	Share Based Compensation Arrangement By Share Based Payment Awards Equity Instruments Outstanding ShareBasedCompensationArrangementByShareBasedPaymentAwardsEquityInstrumentsOutstanding	1839856	shares
CY2017Q4	hmn	Share Based Compensation Arrangement By Share Based Payment Awards Equity Instruments Outstanding ShareBasedCompensationArrangementByShareBasedPaymentAwardsEquityInstrumentsOutstanding	1955274	shares
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Grant Date Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGrantDateIntrinsicValue	0
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	36.65
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	774821	shares
CY2018Q4	hmn	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Exercisable Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExercisableOutstandingNumber	271116	shares
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	39.22
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	282040	shares
CY2019	hmn	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Exercisable Granted In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExercisableGrantedInPeriod	0	shares
CY2019	hmn	Share Based Compensation Arrangements By Share Based Payment Award Options Vested In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsVestedInPeriodWeightedAverageExercisePrice	34.46
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested Number Of Shares SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares	0	shares
CY2019	hmn	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Exercisable Vested In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExercisableVestedInPeriod	161679	shares
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	26.98
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice	0
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod	0	shares
CY2019	hmn	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Exercisable Expired In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExercisableExpiredInPeriod	0	shares
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	37.82
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	908557	shares
CY2018Q4	hmn	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExercisableWeightedAverageExercisePrice	31.42
CY2017Q4	hmn	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExercisableWeightedAverageExercisePrice	27.12
CY2019Q4	us-gaap	Share Price SharePrice	43.66
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue	3300000	USD
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	5300000	USD
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	1008249	shares
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	35.64
CY2018Q4	hmn	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedWeightedAverageGrantDateFairValue	20.22
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	210712	shares
CY2018Q4	hmn	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedNumber	417179	shares
CY2019Q4	hmn	Statutory Accounting Practices Statutory Capital And Surplus Balance Increase Due To Difference In Policy Holder Reserves StatutoryAccountingPracticesStatutoryCapitalAndSurplusBalanceIncreaseDueToDifferenceInPolicyHolderReserves	209127000	USD
CY2019	hmn	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Distributed Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsDistributedWeightedAverageGrantDateFairValue	31.39
CY2019	hmn	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested Distributed In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedDistributedInPeriod	290839	shares
CY2019	hmn	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested Distributed Inp Eriod Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedDistributedInpEriodWeightedAverageGrantDateFairValue	31.39
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	889438	shares
CY2018Q4	hmn	Statutory Accounting Practices Statutory Capital And Surplus Balance Increase Due To Deferred Policy Acquisition Costs StatutoryAccountingPracticesStatutoryCapitalAndSurplusBalanceIncreaseDueToDeferredPolicyAcquisitionCosts	298742000	USD
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	31.94
CY2019Q4	hmn	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedNumber	543794	shares
CY2019Q4	hmn	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedWeightedAverageGrantDateFairValue	24.77
CY2019Q4	hmn	Statutory Accounting Practices Statutory Capital And Surplus Balance Increase Due To Deposit Asset On Reinsurance StatutoryAccountingPracticesStatutoryCapitalAndSurplusBalanceIncreaseDueToDepositAssetOnReinsurance	2346166000	USD
CY2018Q4	hmn	Statutory Accounting Practices Statutory Capital And Surplus Balance Increase Due To Deposit Asset On Reinsurance StatutoryAccountingPracticesStatutoryCapitalAndSurplusBalanceIncreaseDueToDepositAssetOnReinsurance	0	USD
CY2019Q4	hmn	Statutory Accounting Practices Statutory Capital And Surplus Balance Increase Due To Annuity Reserves Ceded StatutoryAccountingPracticesStatutoryCapitalAndSurplusBalanceIncreaseDueToAnnuityReservesCeded	-2239717000	USD
CY2018Q4	hmn	Statutory Accounting Practices Statutory Capital And Surplus Balance Increase Due To Annuity Reserves Ceded StatutoryAccountingPracticesStatutoryCapitalAndSurplusBalanceIncreaseDueToAnnuityReservesCeded	0	USD
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	41.52
CY2019	hmn	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Granted In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantedInPeriod	0	shares
CY2019	hmn	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Granted Vested In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantedVestedInPeriodWeightedAverageGrantDateFairValue	0
CY2019	hmn	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Adjustment For Performance Achievement In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAdjustmentForPerformanceAchievementInPeriod	3789	shares
CY2019	hmn	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Adjustment For Performance Achievement In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAdjustmentForPerformanceAchievementInPeriodWeightedAverageGrantDateFairValue	32.16
CY2019	hmn	Sharebased Compensation Arrangement By Sharebased Payment Award Equity Instruments Other Than Adjustment For Performance Achievement Options In Period SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanAdjustmentForPerformanceAchievementOptionsInPeriod	0	shares
CY2019	hmn	Sharebased Compensation Arrangement By Sharebased Payment Award Equity Instruments Other Than Options Granted Vested In Period Weighted Average Adjustment For Performance Achievement Date Fairvalue SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantedVestedInPeriodWeightedAverageAdjustmentForPerformanceAchievementDateFairvalue	0
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod	0	shares
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue	0
CY2019	hmn	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested Vested In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedVestedInPeriod	417454	shares
CY2019	hmn	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested Vested In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedVestedInPeriodWeightedAverageGrantDateFairValue	33.93
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod	34895	shares
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeitures Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue	43.08
CY2019	hmn	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited Forfeited In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedForfeitedInPeriod	0	shares
CY2019	hmn	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited Vested In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedVestedInPeriodWeightedAverageGrantDateFairValue	0
CY2019	hmn	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Distributed In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsDistributedInPeriod	290839	shares
CY2019Q4	us-gaap	Statutory Accounting Practices Statutory Capital And Surplus Balance StatutoryAccountingPracticesStatutoryCapitalAndSurplusBalance	868839000	USD
CY2018Q4	us-gaap	Statutory Accounting Practices Statutory Capital And Surplus Balance StatutoryAccountingPracticesStatutoryCapitalAndSurplusBalance	903564000	USD
CY2019Q4	hmn	Statutory Accounting Practices Statutory Capital And Surplus Balance Increase Due To Deferred Policy Acquisition Costs StatutoryAccountingPracticesStatutoryCapitalAndSurplusBalanceIncreaseDueToDeferredPolicyAcquisitionCosts	276668000	USD
CY2018Q4	hmn	Statutory Accounting Practices Statutory Capital And Surplus Balance Increase Due To Difference In Policy Holder Reserves StatutoryAccountingPracticesStatutoryCapitalAndSurplusBalanceIncreaseDueToDifferenceInPolicyHolderReserves	142601000	USD
CY2019Q4	hmn	Statutory Accounting Practices Statutory Capital And Surplus Balance Increase Due To Goodwill StatutoryAccountingPracticesStatutoryCapitalAndSurplusBalanceIncreaseDueToGoodwill	49079000	USD
CY2018Q4	hmn	Statutory Accounting Practices Statutory Capital And Surplus Balance Increase Due To Goodwill StatutoryAccountingPracticesStatutoryCapitalAndSurplusBalanceIncreaseDueToGoodwill	47396000	USD
CY2019Q4	hmn	Statutory Accounting Practices Statutory Capital And Surplus Balance Increase Due To Intangible Assets Net StatutoryAccountingPracticesStatutoryCapitalAndSurplusBalanceIncreaseDueToIntangibleAssetsNet	177217000	USD
CY2018Q4	hmn	Statutory Accounting Practices Statutory Capital And Surplus Balance Increase Due To Intangible Assets Net StatutoryAccountingPracticesStatutoryCapitalAndSurplusBalanceIncreaseDueToIntangibleAssetsNet	0	USD
CY2019Q4	hmn	Statutory Accounting Practices Statutory Capita Land Surplus Balance Increase Due To Investment Fair Value Adjustments On Fixed Maturities StatutoryAccountingPracticesStatutoryCapitaLandSurplusBalanceIncreaseDueToInvestmentFairValueAdjustmentsOnFixedMaturities	397762000	USD
CY2018Q4	hmn	Statutory Accounting Practices Statutory Capita Land Surplus Balance Increase Due To Investment Fair Value Adjustments On Fixed Maturities StatutoryAccountingPracticesStatutoryCapitaLandSurplusBalanceIncreaseDueToInvestmentFairValueAdjustmentsOnFixedMaturities	142512000	USD
CY2019Q4	hmn	Statutory Accounting Practices Statutory Capital And Surplus Balance Increase Due To Difference In Investment Reserves StatutoryAccountingPracticesStatutoryCapitalAndSurplusBalanceIncreaseDueToDifferenceInInvestmentReserves	102380000	USD
CY2018Q4	hmn	Statutory Accounting Practices Statutory Capital And Surplus Balance Increase Due To Difference In Investment Reserves StatutoryAccountingPracticesStatutoryCapitalAndSurplusBalanceIncreaseDueToDifferenceInInvestmentReserves	105430000	USD
CY2019Q4	hmn	Statutory Accounting Practices Statutory Capital And Surplus Balance Decrease Due To Federal Income Tax Liability StatutoryAccountingPracticesStatutoryCapitalAndSurplusBalanceDecreaseDueToFederalIncomeTaxLiability	178026000	USD
CY2018Q4	hmn	Statutory Accounting Practices Statutory Capital And Surplus Balance Decrease Due To Federal Income Tax Liability StatutoryAccountingPracticesStatutoryCapitalAndSurplusBalanceDecreaseDueToFederalIncomeTaxLiability	115667000	USD
CY2019Q4	hmn	Statutory Accounting Practices Statutory Capital And Surplus Balance Decrease Due To Net Funded Status Of Pension And Other Postretirement Benefit Obligations StatutoryAccountingPracticesStatutoryCapitalAndSurplusBalanceDecreaseDueToNetFundedStatusOfPensionAndOtherPostretirementBenefitObligations	13690000	USD
CY2018Q4	hmn	Statutory Accounting Practices Statutory Capital And Surplus Balance Decrease Due To Net Funded Status Of Pension And Other Postretirement Benefit Obligations StatutoryAccountingPracticesStatutoryCapitalAndSurplusBalanceDecreaseDueToNetFundedStatusOfPensionAndOtherPostretirementBenefitObligations	15495000	USD
CY2019Q4	hmn	Statutory Accounting Practices Statutory Capital And Surplus Balance Increase Due To Non Admitted Assets And Other Net StatutoryAccountingPracticesStatutoryCapitalAndSurplusBalanceIncreaseDueToNonAdmittedAssetsAndOtherNet	-53801000	USD
CY2019Q4	hmn	Statutory Accounting Practices Statutory Capital And Surplus Balance Decrease Due To Shareholders Equity Deficit Of Parent Company And Non Insurance Subsidiaries StatutoryAccountingPracticesStatutoryCapitalAndSurplusBalanceDecreaseDueToShareholdersEquityDeficitOfParentCompanyAndNonInsuranceSubsidiaries	-8306000	USD
CY2018Q4	hmn	Statutory Accounting Practices Statutory Capital And Surplus Balance Increase Due To Non Admitted Assets And Other Net StatutoryAccountingPracticesStatutoryCapitalAndSurplusBalanceIncreaseDueToNonAdmittedAssetsAndOtherNet	20412000	USD
CY2018Q4	hmn	Statutory Accounting Practices Statutory Capital And Surplus Balance Decrease Due To Shareholders Equity Deficit Of Parent Company And Non Insurance Subsidiaries StatutoryAccountingPracticesStatutoryCapitalAndSurplusBalanceDecreaseDueToShareholdersEquityDeficitOfParentCompanyAndNonInsuranceSubsidiaries	-8795000	USD
CY2019Q4	hmn	Statutory Accounting Practices Statutory Capital And Surplus Balance Decrease Due To Parent Company Short Term And Long Term Debt StatutoryAccountingPracticesStatutoryCapitalAndSurplusBalanceDecreaseDueToParentCompanyShortTermAndLongTermDebt	383025000	USD
CY2018Q4	hmn	Statutory Accounting Practices Statutory Capital And Surplus Balance Decrease Due To Parent Company Short Term And Long Term Debt StatutoryAccountingPracticesStatutoryCapitalAndSurplusBalanceDecreaseDueToParentCompanyShortTermAndLongTermDebt	247740000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	1567285000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	1290550000	USD
CY2019	us-gaap	Statutory Accounting Practices Statutory Net Income Amount StatutoryAccountingPracticesStatutoryNetIncomeAmount	62316000	USD
CY2018	us-gaap	Statutory Accounting Practices Statutory Net Income Amount StatutoryAccountingPracticesStatutoryNetIncomeAmount	45977000	USD
CY2017	us-gaap	Statutory Accounting Practices Statutory Net Income Amount StatutoryAccountingPracticesStatutoryNetIncomeAmount	82587000	USD
CY2019	hmn	Statutory Accounting Practices Statutory Net Loss Of Non Insurance Companies StatutoryAccountingPracticesStatutoryNetLossOfNonInsuranceCompanies	9537000	USD
CY2018	hmn	Statutory Accounting Practices Statutory Net Loss Of Non Insurance Companies StatutoryAccountingPracticesStatutoryNetLossOfNonInsuranceCompanies	9755000	USD
CY2017	hmn	Statutory Accounting Practices Statutory Net Loss Of Non Insurance Companies StatutoryAccountingPracticesStatutoryNetLossOfNonInsuranceCompanies	4496000	USD
CY2019	hmn	Statutory Accounting Practices Statutory Interest Expense StatutoryAccountingPracticesStatutoryInterestExpense	14272000	USD
CY2018	hmn	Statutory Accounting Practices Statutory Interest Expense StatutoryAccountingPracticesStatutoryInterestExpense	11892000	USD
CY2017	hmn	Statutory Accounting Practices Statutory Interest Expense StatutoryAccountingPracticesStatutoryInterestExpense	11836000	USD
CY2019	hmn	Statutory Accounting Practices Statutory Tax Benefit Of Interest Expense And Other Parent Company Current Tax Adjustments StatutoryAccountingPracticesStatutoryTaxBenefitOfInterestExpenseAndOtherParentCompanyCurrentTaxAdjustments	8993000	USD
CY2018	hmn	Statutory Accounting Practices Statutory Tax Benefit Of Interest Expense And Other Parent Company Current Tax Adjustments StatutoryAccountingPracticesStatutoryTaxBenefitOfInterestExpenseAndOtherParentCompanyCurrentTaxAdjustments	121000	USD
CY2017	hmn	Statutory Accounting Practices Statutory Tax Benefit Of Interest Expense And Other Parent Company Current Tax Adjustments StatutoryAccountingPracticesStatutoryTaxBenefitOfInterestExpenseAndOtherParentCompanyCurrentTaxAdjustments	5654000	USD
CY2019	hmn	Statutory Accounting Practices Statutory Combined Net Income Amount StatutoryAccountingPracticesStatutoryCombinedNetIncomeAmount	47500000	USD
CY2018	hmn	Statutory Accounting Practices Statutory Combined Net Income Amount StatutoryAccountingPracticesStatutoryCombinedNetIncomeAmount	24451000	USD
CY2017	hmn	Statutory Accounting Practices Statutory Combined Net Income Amount StatutoryAccountingPracticesStatutoryCombinedNetIncomeAmount	71909000	USD
CY2019	hmn	Statutory Accounting Practices Statutory Combined Net Income Amount Increase Due To Deferred Policy Acquisition Costs StatutoryAccountingPracticesStatutoryCombinedNetIncomeAmountIncreaseDueToDeferredPolicyAcquisitionCosts	2101000	USD
CY2018	hmn	Statutory Accounting Practices Statutory Combined Net Income Amount Increase Due To Deferred Policy Acquisition Costs StatutoryAccountingPracticesStatutoryCombinedNetIncomeAmountIncreaseDueToDeferredPolicyAcquisitionCosts	1015000	USD
CY2017	hmn	Statutory Accounting Practices Statutory Combined Net Income Amount Increase Due To Deferred Policy Acquisition Costs StatutoryAccountingPracticesStatutoryCombinedNetIncomeAmountIncreaseDueToDeferredPolicyAcquisitionCosts	9385000	USD
CY2019	hmn	Statutory Accounting Practices Statutory Combined Net Income Amount Increase Due To Intangible Asset Amortization Expense StatutoryAccountingPracticesStatutoryCombinedNetIncomeAmountIncreaseDueToIntangibleAssetAmortizationExpense	8790000	USD
CY2018	hmn	Statutory Accounting Practices Statutory Combined Net Income Amount Increase Due To Intangible Asset Amortization Expense StatutoryAccountingPracticesStatutoryCombinedNetIncomeAmountIncreaseDueToIntangibleAssetAmortizationExpense	0	USD
CY2017	hmn	Statutory Accounting Practices Statutory Combined Net Income Amount Increase Due To Intangible Asset Amortization Expense StatutoryAccountingPracticesStatutoryCombinedNetIncomeAmountIncreaseDueToIntangibleAssetAmortizationExpense	0	USD
CY2019	hmn	Statutory Accounting Practices Statutory Combined Net Income Amount Increase Dueto Policy Holder Benefits StatutoryAccountingPracticesStatutoryCombinedNetIncomeAmountIncreaseDuetoPolicyHolderBenefits	117369000	USD
CY2018	hmn	Statutory Accounting Practices Statutory Combined Net Income Amount Increase Dueto Policy Holder Benefits StatutoryAccountingPracticesStatutoryCombinedNetIncomeAmountIncreaseDuetoPolicyHolderBenefits	26318000	USD
CY2017	hmn	Statutory Accounting Practices Statutory Combined Net Income Amount Increase Dueto Policy Holder Benefits StatutoryAccountingPracticesStatutoryCombinedNetIncomeAmountIncreaseDuetoPolicyHolderBenefits	30609000	USD
CY2019	hmn	Statutory Accounting Practices Statutory Combined Net Income Amount Decrease Due To Federal Income Tax Expense StatutoryAccountingPracticesStatutoryCombinedNetIncomeAmountDecreaseDueToFederalIncomeTaxExpense	-23492000	USD
CY2018	hmn	Statutory Accounting Practices Statutory Combined Net Income Amount Decrease Due To Federal Income Tax Expense StatutoryAccountingPracticesStatutoryCombinedNetIncomeAmountDecreaseDueToFederalIncomeTaxExpense	3020000	USD
CY2017	hmn	Statutory Accounting Practices Statutory Combined Net Income Amount Decrease Due To Federal Income Tax Expense StatutoryAccountingPracticesStatutoryCombinedNetIncomeAmountDecreaseDueToFederalIncomeTaxExpense	84198000	USD
CY2019	hmn	Statutory Accounting Practices Statutory Combined Net Income Amount Increase Due To Investment Reserves StatutoryAccountingPracticesStatutoryCombinedNetIncomeAmountIncreaseDueToInvestmentReserves	88627000	USD
CY2018	hmn	Statutory Accounting Practices Statutory Combined Net Income Amount Increase Due To Investment Reserves StatutoryAccountingPracticesStatutoryCombinedNetIncomeAmountIncreaseDueToInvestmentReserves	-31529000	USD
CY2017	hmn	Statutory Accounting Practices Statutory Combined Net Income Amount Increase Due To Investment Reserves StatutoryAccountingPracticesStatutoryCombinedNetIncomeAmountIncreaseDueToInvestmentReserves	-20966000	USD
CY2019	hmn	Statutory Accounting Practices Statutory Combined Net Income Amount Decrease Due To Other Adjustments StatutoryAccountingPracticesStatutoryCombinedNetIncomeAmountDecreaseDueToOtherAdjustments	-38872000	USD
CY2018	hmn	Statutory Accounting Practices Statutory Combined Net Income Amount Decrease Due To Other Adjustments StatutoryAccountingPracticesStatutoryCombinedNetIncomeAmountDecreaseDueToOtherAdjustments	-4932000	USD
CY2017	hmn	Statutory Accounting Practices Statutory Combined Net Income Amount Decrease Due To Other Adjustments StatutoryAccountingPracticesStatutoryCombinedNetIncomeAmountDecreaseDueToOtherAdjustments	-5676000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	184443000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	18343000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	169459000	USD
CY2019Q4	us-gaap	Statutory Accounting Practices Statutory Capital And Surplus Required StatutoryAccountingPracticesStatutoryCapitalAndSurplusRequired	108100000	USD
CY2019Q4	hmn	Health Reimbursement Accounts Funding HealthReimbursementAccountsFunding	100000	USD
CY2018Q4	hmn	Health Reimbursement Accounts Funding HealthReimbursementAccountsFunding	100000	USD
CY2018Q4	us-gaap	Statutory Accounting Practices Statutory Capital And Surplus Required StatutoryAccountingPracticesStatutoryCapitalAndSurplusRequired	108500000	USD
CY2017Q4	hmn	Health Reimbursement Accounts Funding HealthReimbursementAccountsFunding	100000	USD
CY2019Q4	hmn	Statutory Accounting Practices Restricted Net Assets StatutoryAccountingPracticesRestrictedNetAssets	26000000.0	USD
CY2018Q4	hmn	Statutory Accounting Practices Restricted Net Assets StatutoryAccountingPracticesRestrictedNetAssets	17700000	USD
CY2019Q4	us-gaap	Statutory Accounting Practices Statutory Amount Available For Dividend Payments StatutoryAccountingPracticesStatutoryAmountAvailableForDividendPayments	105300000	USD
CY2019Q4	us-gaap	Statutory Accounting Practices Statutory Capital And Surplus Balance StatutoryAccountingPracticesStatutoryCapitalAndSurplusBalance	868800000	USD
CY2006Q4	hmn	Health Reimbursement Account Balance HealthReimbursementAccountBalance	7300000	USD
CY2019Q4	hmn	Health Reimbursement Account Balance HealthReimbursementAccountBalance	1400000	USD
CY2019Q4	hmn	Number Of Supplemental Defined Benefit Plans Frozen NumberOfSupplementalDefinedBenefitPlansFrozen	2	plan
CY2019	us-gaap	Pension Expense PensionExpense	9300000	USD
CY2018	us-gaap	Pension Expense PensionExpense	8900000	USD
CY2017	us-gaap	Pension Expense PensionExpense	9100000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	25508000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	11906000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	7627000	USD
CY2017	us-gaap	Net Investment Income NetInvestmentIncome	373630000	USD
CY2019	us-gaap	Interest Paid Net InterestPaidNet	14104000	USD
CY2018	us-gaap	Interest Paid Net InterestPaidNet	12532000	USD
CY2017	us-gaap	Interest Paid Net InterestPaidNet	11555000	USD
CY2019	us-gaap	Income Taxes Paid IncomeTaxesPaid	22946000	USD
CY2018	us-gaap	Income Taxes Paid IncomeTaxesPaid	8679000	USD
CY2017	us-gaap	Income Taxes Paid IncomeTaxesPaid	16259000	USD
CY2018	hmn	Insurance Premiums And Contract Charges Earned InsurancePremiumsAndContractChargesEarned	817333000	USD
CY2017	hmn	Insurance Premiums And Contract Charges Earned InsurancePremiumsAndContractChargesEarned	794703000	USD
CY2019	us-gaap	Net Investment Income NetInvestmentIncome	365064000	USD
CY2018	us-gaap	Net Investment Income NetInvestmentIncome	376507000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	52006000	USD
CY2019Q4	us-gaap	Purchase Commitment Remaining Minimum Amount Committed PurchaseCommitmentRemainingMinimumAmountCommitted	306200000	USD
CY2018Q4	us-gaap	Purchase Commitment Remaining Minimum Amount Committed PurchaseCommitmentRemainingMinimumAmountCommitted	145400000	USD
CY2019Q4	us-gaap	Cash Cash	25206000	USD
CY2018Q4	us-gaap	Cash Cash	11906000	USD
CY2017Q4	us-gaap	Cash Cash	7627000	USD
CY2019Q4	us-gaap	Restricted Cash RestrictedCash	302000	USD
CY2018Q4	us-gaap	Restricted Cash RestrictedCash	0	USD
CY2017Q4	us-gaap	Restricted Cash RestrictedCash	0	USD
CY2019Q2	us-gaap	Transfer Of Investments TransferOfInvestments	2100000000	USD
CY2019Q2	us-gaap	Reinsurance Recoverables Gross ReinsuranceRecoverablesGross	2900000000	USD
CY2019	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	5	segment
CY2019	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	4	segment
CY2019	hmn	Insurance Premiums And Contract Charges Earned InsurancePremiumsAndContractChargesEarned	897954000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	184443000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	18343000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	169459000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1194000	USD
CY2019Q4	us-gaap	Net Income Loss NetIncomeLoss	33001000	USD
CY2019Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	41610000000	shares
CY2019Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.78
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.60
CY2019Q4	us-gaap	Assets Assets	12478704000	USD
CY2019Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.24
CY2019Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.77
CY2018Q4	us-gaap	Assets Assets	11031896000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	25454000	USD
CY2017Q4	us-gaap	Assets Assets	11198340000	USD
CY2019	us-gaap	Deferred Policy Acquisition Cost Amortization Expense DeferredPolicyAcquisitionCostAmortizationExpense	109181000	USD
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	93822000	USD
CY2019Q4	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	42093000000	shares
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-80772000	USD
CY2019Q1	us-gaap	Net Income Loss NetIncomeLoss	32166000	USD
CY2019Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.79
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.61
CY2019Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.25
CY2018	us-gaap	Deferred Policy Acquisition Cost Amortization Expense DeferredPolicyAcquisitionCostAmortizationExpense	109889000	USD
CY2017	us-gaap	Deferred Policy Acquisition Cost Amortization Expense DeferredPolicyAcquisitionCostAmortizationExpense	102185000	USD
CY2019Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.77
CY2019Q4	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	41814000000	shares
CY2019Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	41785000000	shares
CY2019Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	41762000000	shares
CY2019Q3	us-gaap	Revenues Revenues	334418000	USD
CY2019Q2	us-gaap	Revenues Revenues	451478000	USD
CY2019Q1	us-gaap	Revenues Revenues	313213000	USD
CY2019Q4	hmn	Insurance Premiums And Contract Charges Earned InsurancePremiumsAndContractChargesEarned	240392000	USD
CY2019Q3	hmn	Insurance Premiums And Contract Charges Earned InsurancePremiumsAndContractChargesEarned	239681000	USD
CY2019Q2	hmn	Insurance Premiums And Contract Charges Earned InsurancePremiumsAndContractChargesEarned	208096000	USD
CY2019Q1	hmn	Insurance Premiums And Contract Charges Earned InsurancePremiumsAndContractChargesEarned	209785000	USD
CY2019Q4	hmn	Insurancepremiumswrittenandcontractcharges Insurancepremiumswrittenandcontractcharges	346242000	USD
CY2019Q3	hmn	Insurancepremiumswrittenandcontractcharges Insurancepremiumswrittenandcontractcharges	371216000	USD
CY2019Q2	hmn	Insurancepremiumswrittenandcontractcharges Insurancepremiumswrittenandcontractcharges	311691000	USD
CY2019Q1	hmn	Insurancepremiumswrittenandcontractcharges Insurancepremiumswrittenandcontractcharges	295394000	USD
CY2019Q4	us-gaap	Revenues Revenues	331376000	USD
CY2019Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	42030000000	shares
CY2019Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	41921000000	shares
CY2019Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	41785000000	shares
CY2018Q4	hmn	Insurance Premiums And Contract Charges Earned InsurancePremiumsAndContractChargesEarned	201905000	USD
CY2018Q3	hmn	Insurance Premiums And Contract Charges Earned InsurancePremiumsAndContractChargesEarned	206820000	USD
CY2018Q2	hmn	Insurance Premiums And Contract Charges Earned InsurancePremiumsAndContractChargesEarned	205610000	USD
CY2018Q1	hmn	Insurance Premiums And Contract Charges Earned InsurancePremiumsAndContractChargesEarned	202998000	USD
CY2018Q4	hmn	Insurancepremiumswrittenandcontractcharges Insurancepremiumswrittenandcontractcharges	311216000	USD
CY2018Q3	hmn	Insurancepremiumswrittenandcontractcharges Insurancepremiumswrittenandcontractcharges	338097000	USD
CY2018Q2	hmn	Insurancepremiumswrittenandcontractcharges Insurancepremiumswrittenandcontractcharges	301722000	USD
CY2018Q1	hmn	Insurancepremiumswrittenandcontractcharges Insurancepremiumswrittenandcontractcharges	284008000	USD
CY2018Q4	us-gaap	Revenues Revenues	278535000	USD
CY2018Q3	us-gaap	Revenues Revenues	311318000	USD
CY2018Q2	us-gaap	Revenues Revenues	306257000	USD
CY2018Q1	us-gaap	Revenues Revenues	295489000	USD
CY2018Q4	us-gaap	Net Income Loss NetIncomeLoss	-20257000	USD
CY2018Q3	us-gaap	Net Income Loss NetIncomeLoss	12528000	USD
CY2018Q2	us-gaap	Net Income Loss NetIncomeLoss	5917000	USD
CY2018Q1	us-gaap	Net Income Loss NetIncomeLoss	20155000	USD
CY2018Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.49
CY2018Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.30
CY2018Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.14
CY2018Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.49
CY2018Q4	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	41596000000	shares
CY2018Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	41683000000	shares
CY2018Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	41600000000	shares
CY2018Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	41497000000	shares
CY2018Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.49
CY2018Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.30
CY2018Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.14
CY2018Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.48
CY2018Q4	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	41911000000	shares
CY2018Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	41850000000	shares
CY2018Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	41735000000	shares
CY2018Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	41653000000	shares
CY2017Q4	hmn	Insurance Premiums And Contract Charges Earned InsurancePremiumsAndContractChargesEarned	204328000	USD
CY2017Q3	hmn	Insurance Premiums And Contract Charges Earned InsurancePremiumsAndContractChargesEarned	198935000	USD
CY2017Q2	hmn	Insurance Premiums And Contract Charges Earned InsurancePremiumsAndContractChargesEarned	195718000	USD
CY2017Q1	hmn	Insurance Premiums And Contract Charges Earned InsurancePremiumsAndContractChargesEarned	195722000	USD
CY2017Q4	hmn	Insurancepremiumswrittenandcontractcharges Insurancepremiumswrittenandcontractcharges	300416000	USD
CY2017Q3	hmn	Insurancepremiumswrittenandcontractcharges Insurancepremiumswrittenandcontractcharges	318355000	USD
CY2017Q2	hmn	Insurancepremiumswrittenandcontractcharges Insurancepremiumswrittenandcontractcharges	311614000	USD
CY2017Q1	hmn	Insurancepremiumswrittenandcontractcharges Insurancepremiumswrittenandcontractcharges	296732000	USD
CY2017Q4	us-gaap	Revenues Revenues	302993000	USD
CY2017Q3	us-gaap	Revenues Revenues	289817000	USD
CY2017Q2	us-gaap	Revenues Revenues	291436000	USD
CY2017Q1	us-gaap	Revenues Revenues	287304000	USD
CY2017Q4	us-gaap	Net Income Loss NetIncomeLoss	125329000	USD
CY2017Q3	us-gaap	Net Income Loss NetIncomeLoss	26551000	USD
CY2017Q2	us-gaap	Net Income Loss NetIncomeLoss	2261000	USD
CY2017Q1	us-gaap	Net Income Loss NetIncomeLoss	15318000	USD
CY2017Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.03
CY2017Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.64
CY2017Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.05
CY2017Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.37
CY2017Q4	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	41419000000	shares
CY2017Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	41433000000	shares
CY2017Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	41368000000	shares
CY2017Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	41135000000	shares
CY2017Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.00
CY2017Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.64
CY2017Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.05
CY2017Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.37
CY2017Q4	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	41718000000	shares
CY2017Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	41575000000	shares
CY2017Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	41493000000	shares
CY2017Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	41342000000	shares
CY2017Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.03
CY2017Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.00
CY2017Q4	hmn	Tax Cutsand Jobs Act Earnings Per Share Basic TaxCutsandJobsActEarningsPerShareBasic	2.39
CY2017Q4	hmn	Tax Cutsand Jobs Act Earnings Per Share Diluted TaxCutsandJobsActEarningsPerShareDiluted	2.37
CY2019Q4	us-gaap	Summary Of Investments Other Than Investments In Related Parties Cost SummaryOfInvestmentsOtherThanInvestmentsInRelatedPartiesCost	6299955000	USD
CY2019Q4	us-gaap	Summary Of Investments Other Than Investments In Related Parties Carrying Amount SummaryOfInvestmentsOtherThanInvestmentsInRelatedPartiesCarryingAmount	6639233000	USD
CY2019Q4	us-gaap	Supplementary Insurance Information Deferred Policy Acquisition Costs SupplementaryInsuranceInformationDeferredPolicyAcquisitionCosts	276668000	USD
CY2019Q4	us-gaap	Supplementary Insurance Information Liability For Future Policy Benefits Losses Claims And Loss Expense Reserves SupplementaryInsuranceInformationLiabilityForFuturePolicyBenefitsLossesClaimsAndLossExpenseReserves	6677306000	USD
CY2019Q4	us-gaap	Supplementary Insurance Information Unearned Premiums SupplementaryInsuranceInformationUnearnedPremiums	279163000	USD
CY2019Q4	us-gaap	Supplementary Insurance Information Other Policy Claims And Benefits Payable SupplementaryInsuranceInformationOtherPolicyClaimsAndBenefitsPayable	647283000	USD
CY2019	us-gaap	Supplementary Insurance Information Premium Revenue SupplementaryInsuranceInformationPremiumRevenue	897954000	USD
CY2019	us-gaap	Supplementary Insurance Information Net Investment Income SupplementaryInsuranceInformationNetInvestmentIncome	365064000	USD
CY2019	us-gaap	Supplementary Insurance Information Benefits Claims Losses And Settlement Expense SupplementaryInsuranceInformationBenefitsClaimsLossesAndSettlementExpense	797854000	USD
CY2019	us-gaap	Supplementary Insurance Information Amortization Of Deferred Policy Acquisition Costs SupplementaryInsuranceInformationAmortizationOfDeferredPolicyAcquisitionCosts	109181000	USD
CY2019	us-gaap	Supplementary Insurance Information Other Operating Expense SupplementaryInsuranceInformationOtherOperatingExpense	287001000	USD
CY2018Q4	us-gaap	Supplementary Insurance Information Deferred Policy Acquisition Costs SupplementaryInsuranceInformationDeferredPolicyAcquisitionCosts	298742000	USD
CY2018Q4	us-gaap	Supplementary Insurance Information Liability For Future Policy Benefits Losses Claims And Loss Expense Reserves SupplementaryInsuranceInformationLiabilityForFuturePolicyBenefitsLossesClaimsAndLossExpenseReserves	6107907000	USD
CY2018Q4	us-gaap	Supplementary Insurance Information Unearned Premiums SupplementaryInsuranceInformationUnearnedPremiums	276225000	USD
CY2018	us-gaap	Supplementary Insurance Information Premium Revenue SupplementaryInsuranceInformationPremiumRevenue	817333000	USD
CY2018	us-gaap	Supplementary Insurance Information Net Investment Income SupplementaryInsuranceInformationNetInvestmentIncome	376507000	USD
CY2018	us-gaap	Supplementary Insurance Information Benefits Claims Losses And Settlement Expense SupplementaryInsuranceInformationBenefitsClaimsLossesAndSettlementExpense	843759000	USD
CY2018Q4	us-gaap	Supplementary Insurance Information Other Policy Claims And Benefits Payable SupplementaryInsuranceInformationOtherPolicyClaimsAndBenefitsPayable	767988000	USD
CY2018	us-gaap	Supplementary Insurance Information Amortization Of Deferred Policy Acquisition Costs SupplementaryInsuranceInformationAmortizationOfDeferredPolicyAcquisitionCosts	109889000	USD
CY2018	us-gaap	Supplementary Insurance Information Other Operating Expense SupplementaryInsuranceInformationOtherOperatingExpense	218414000	USD
CY2017Q4	us-gaap	Supplementary Insurance Information Deferred Policy Acquisition Costs SupplementaryInsuranceInformationDeferredPolicyAcquisitionCosts	257826000	USD
CY2017Q4	us-gaap	Supplementary Insurance Information Liability For Future Policy Benefits Losses Claims And Loss Expense Reserves SupplementaryInsuranceInformationLiabilityForFuturePolicyBenefitsLossesClaimsAndLossExpenseReserves	5921484000	USD
CY2017Q4	us-gaap	Supplementary Insurance Information Unearned Premiums SupplementaryInsuranceInformationUnearnedPremiums	260539000	USD
CY2017Q4	us-gaap	Supplementary Insurance Information Other Policy Claims And Benefits Payable SupplementaryInsuranceInformationOtherPolicyClaimsAndBenefitsPayable	724261000	USD
CY2017	us-gaap	Supplementary Insurance Information Premium Revenue SupplementaryInsuranceInformationPremiumRevenue	794703000	USD
CY2017	us-gaap	Supplementary Insurance Information Net Investment Income SupplementaryInsuranceInformationNetInvestmentIncome	373630000	USD
CY2017	us-gaap	Supplementary Insurance Information Benefits Claims Losses And Settlement Expense SupplementaryInsuranceInformationBenefitsClaimsLossesAndSettlementExpense	780941000	USD
CY2017	us-gaap	Supplementary Insurance Information Amortization Of Deferred Policy Acquisition Costs SupplementaryInsuranceInformationAmortizationOfDeferredPolicyAcquisitionCosts	102185000	USD
CY2017	us-gaap	Supplementary Insurance Information Other Operating Expense SupplementaryInsuranceInformationOtherOperatingExpense	199737000	USD
CY2019Q4	srt	Life Insurance In Force Gross LifeInsuranceInForceGross	19179823000	USD
CY2019Q4	srt	Life Insurance In Force Ceded LifeInsuranceInForceCeded	4813185000	USD
CY2019Q4	srt	Life Insurance In Force Assumed LifeInsuranceInForceAssumed	0	USD
CY2019Q4	srt	Life Insurance In Force Net LifeInsuranceInForceNet	14366638000	USD
CY2019Q4	srt	Life Insurance In Force Percentage Assumed To Net LifeInsuranceInForcePercentageAssumedToNet	0
CY2019	us-gaap	Direct Premiums Earned DirectPremiumsEarned	917610000	USD
CY2019	us-gaap	Ceded Premiums Earned CededPremiumsEarned	30412000	USD
CY2019	us-gaap	Assumed Premiums Earned AssumedPremiumsEarned	10756000	USD
CY2019	us-gaap	Premiums Earned Net PremiumsEarnedNet	897954000	USD
CY2019	us-gaap	Premiums Percentage Assumed To Net PremiumsPercentageAssumedToNet	0.012
CY2018Q4	srt	Life Insurance In Force Gross LifeInsuranceInForceGross	18277691000	USD
CY2018Q4	srt	Life Insurance In Force Ceded LifeInsuranceInForceCeded	4505208000	USD
CY2018Q4	srt	Life Insurance In Force Assumed LifeInsuranceInForceAssumed	0	USD
CY2018Q4	srt	Life Insurance In Force Net LifeInsuranceInForceNet	13772483000	USD
CY2018Q4	srt	Life Insurance In Force Percentage Assumed To Net LifeInsuranceInForcePercentageAssumedToNet	0
CY2018	us-gaap	Direct Premiums Earned DirectPremiumsEarned	841147000	USD
CY2018	us-gaap	Ceded Premiums Earned CededPremiumsEarned	28837000	USD
CY2018	us-gaap	Assumed Premiums Earned AssumedPremiumsEarned	5023000	USD
CY2018	us-gaap	Premiums Earned Net PremiumsEarnedNet	817333000	USD
CY2018	us-gaap	Premiums Percentage Assumed To Net PremiumsPercentageAssumedToNet	0.006
CY2017Q4	srt	Life Insurance In Force Gross LifeInsuranceInForceGross	17564270000	USD
CY2017Q4	srt	Life Insurance In Force Ceded LifeInsuranceInForceCeded	4295412000	USD
CY2017Q4	srt	Life Insurance In Force Assumed LifeInsuranceInForceAssumed	0	USD
CY2017Q4	srt	Life Insurance In Force Net LifeInsuranceInForceNet	13268858000	USD
CY2017Q4	srt	Life Insurance In Force Percentage Assumed To Net LifeInsuranceInForcePercentageAssumedToNet	0
CY2017	us-gaap	Direct Premiums Earned DirectPremiumsEarned	812099000	USD
CY2017	us-gaap	Ceded Premiums Earned CededPremiumsEarned	22036000	USD
CY2017	us-gaap	Assumed Premiums Earned AssumedPremiumsEarned	4640000	USD
CY2017	us-gaap	Premiums Earned Net PremiumsEarnedNet	794703000	USD
CY2017	us-gaap	Premiums Percentage Assumed To Net PremiumsPercentageAssumedToNet	0.006

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$HMN
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2019 Form 10-K Financial Statement

#000162828020002596 Filed on March 02, 2020

Income Statement

Balance Sheet

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Facts In Submission

Files In Submission

$HMN Horace Mann Educators Corp Stock $hmn

2019 Form 10-K Financial Statement

#000162828020002596 Filed on March 02, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$HMN
Horace Mann Educators Corp Stock $hmn