Contingent Liabilities [Abstract] Contingent Liabilities [Abstract] Contingent Liabilities Contingent Liabilities [Text Block] Contingent liabilities. Disclosure Schedule Of Fair Value Of Assets And Liabilities Measured On Recurring Basis [Abstract] Disclosure - Schedule of Fair Value of Assets and Liabilities Measured on Recurring Basis [Abstract] Fair Value Measurements Fair Value Disclosures [Text Block] Investments [Abstract] Due in one year or less, Amortized Cost Available-for-sale Securities, Debt Maturities, Next Twelve Months, Amortized Cost Basis Due after one year through five years, Amortized Cost Available-for-sale Securities, Debt Maturities, Year Two Through Five, Amortized Cost Basis Due after five years through ten years, Amortized Cost Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Amortized Cost Basis Due after ten years, Amortized Cost Available-for-sale Securities, Debt Maturities, after Ten Years, Amortized Cost Basis Securities with variable principal payments, Amortized Cost Available-for-sale Securities, Debt Maturities, without Single Maturity Date, Amortized Cost Basis Redeemable preferred stocks, Amortized Cost Redeemable Preferred Stocks Debt Maturities Amortized Cost Redeemable preferred stocks debt maturities amortized cost. Available for sale securities, Amortized Cost, Total Available-for-sale Securities, Debt Maturities, Amortized Cost Basis Due in one year or less, Fair value Available-for-sale Securities, Debt Maturities, Next Twelve Months, Fair Value Due after one year through five years, Fair Value Available-for-sale Securities, Debt Maturities, Year Two Through Five, Fair Value Due after five years through ten years, Fair Value Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Fair Value Due after ten years, Fair Value Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value Securities with variable principal payments, Fair Value Available-for-sale Securities, Debt Maturities, without Single Maturity Date, Fair Value Redeemable preferred stocks, Fair Value Redeemable Preferred Stock Debt Maturities Fair Value Redeemable preferred stock debt maturities fair value. Fixed maturity securities available for sale, Carrying Value, Total Available-for-sale Securities, Debt Securities Mortgage Loans on Real Estate Schedule [Table] Mortgage Loans on Real Estate Schedule [Table] Class of Financing Receivable [Axis] Class of Financing Receivable [Axis] Class of Financing Receivable [Domain] Class of Financing Receivable [Domain] Due in one year or less Due In One Year Or Less [Member] Due In One Year Or Less [Member] Due after one year through five years Due After One Year Through Five Years [Member] Due After One Year Through Five Years [Member] Due after five years through ten years Due After Five Years Through Ten Years [Member] Due After Five Years Through Ten Years [Member] Due after ten years Due After Ten Years [Member] Due After Ten Years [Member] Mortgage Loans on Real Estate [Line Items] Mortgage Loans on Real Estate [Line Items] Mortgage loans, carrying value Loans Receivable, Gross, Commercial, Real Estate Percentage of total carrying amount Percentage Of Carrying Amount Of Mortgage Loans Percentage of carrying amount of mortgage loans. Receivables [Abstract] Mortgage loans collectively evaluated for impairment Financing Receivable, Collectively Evaluated for Impairment Mortgage loans individually evaluated for impairment Financing Receivable, Individually Evaluated for Impairment Allowance for potential future losses Impaired Financing Receivable, Related Allowance Carrying value Mortgage Loans on Real Estate, Commercial and Consumer, Net Statement of Stockholders' Equity [Abstract] Statement [Table] Statement [Table] Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Common Stock Common Stock [Member] Statement [Line Items] Statement [Line Items] Common stock - end of period Stockholders' Equity Attributable to Parent Dividends to shareholders (USD per share) Common Stock, Dividends, Per Share, Cash Paid Treasury stock, shares acquired Treasury Stock, Shares, Acquired Treasury stock, shares sold Stock Issued During Period, Shares, Treasury Stock Reissued Proceeds Proceeds from Sale of Available-for-sale Securities Gross realized gains Available-for-sale Securities, Gross Realized Gains Earnings Per Share [Abstract] Earnings Per Share Earnings Per Share [Text Block] Disclosure Notes Payable Additional Information [Abstract] Disclosure - Notes Payable - Additional Information [Abstract] Notes Payable [Table] Notes Payable [Table] Notes Payable [Table] Legal Entity [Axis] Legal Entity [Axis] Entity [Domain] Entity [Domain] Notes Payable [Line Items] Notes Payable [Line Items] Notes Payable [Line Items] Notes payable Notes Payable Capital investment Federal Home Loan Bank Stock Dividend received Investment Income, Dividend Unsecured revolving line of credit Line of Credit Facility, Maximum Borrowing Capacity Number of major commercial banks Number Of Major Commercial Banks Number of major commercial banks. Debt instrument maturity date Line of Credit Facility, Expiration Date Schedule of Financing Receivable, Allowance for Credit Losses [Table] Schedule of Financing Receivable, Allowance for Credit Losses [Table] Industrial Industrial [Member] Industrial. Office Office [Member] Office [Member] Medical Medical [Member] Medical Other Other Financing Receivable [Member] Class of financing receivables related to other financing receivables Financing Receivable, Recorded Investment, Past Due [Line Items] Financing Receivable, Recorded Investment, Past Due [Line Items] Book Value Mortgage Loans On Real Estate With Delinquent Payments Book Value By Property Type The book value of mortgage loans with delinquent payments by property type. Amount of Payments Past Due 30-59 Days Financing Receivable, Recorded Investment, 30 to 59 Days Past Due Amount of Payments Past Due 60-89 Days Financing Receivable, Recorded Investment, 60 to 89 Days Past Due Amount of Payments Past Due Greater Than 90 Days Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing Amount of Payments Past Due, Total Financing Receivable, Recorded Investment, Past Due Disclosure Segment Information Additional Information [Abstract] Disclosure Segment Information Additional Information [Abstract] Schedule of Financial Performance of Reportable Segments Schedule of Segment Reporting Information, by Segment [Table Text Block] Disclosure Commitments Additional Information [Abstract] Disclosure - Commitments - Additional Information [Abstract] Commitments Commitments Disclosure [Text Block] Compensation and Retirement Disclosure [Abstract] Schedule of Defined Benefit Plans Disclosures [Table] Schedule of Defined Benefit Plans Disclosures [Table] Defined Benefit Plans and Other Postretirement Benefit Plans [Axis] Defined Benefit Plans and Other Postretirement Benefit Plans [Axis] Defined Benefit Plans and Other Postretirement Benefit Plans [Domain] Defined Benefit Plans and Other Postretirement Benefit Plans [Domain] Pension Benefits Pension Plans, Defined Benefit [Member] Other Benefits Other Pension Plans, Defined Benefit [Member] Defined Benefit Plan Disclosure [Line Items] Defined Benefit Plan Disclosure [Line Items] Service cost Defined Benefit Plan, Service Cost Interest cost Defined Benefit Plan, Interest Cost Expected return on plan assets Defined Benefit Plan, Expected Return on Plan Assets Amortization of Unrecognized actuarial loss Defined Benefit Plan, Amortization of Gains (Losses) Amortization of Unrecognized prior service cost Defined Benefit Plan, Amortization of Prior Service Cost (Credit) Net periodic benefit cost Defined Benefit Plan, Net Periodic Benefit Cost Disclosure Information About Comprehensive Income [Abstract] Disclosure - Information about Comprehensive Income [Abstract] Fair Value Inputs, Assets, Quantitative Information [Table] Fair Value Inputs, Assets, Quantitative Information [Table] Major Types of Debt and Equity Securities [Axis] Major Types of Debt and Equity Securities [Axis] Major Types of Debt and Equity Securities [Domain] Major Types of Debt and Equity Securities [Domain] Fixed maturity securities Debt Securities [Member] Equity securities Equity Securities [Member] Unlocking and Refinements in Estimates [Axis] Unlocking and Refinements in Estimates [Axis] Unlocking and Refinements in Estimates [Axis] Unlocking and Refinements in Estimates [Domain] Unlocking and Refinements in Estimates [Domain] [Domain] for Unlocking and Refinements in Estimates [Axis] Refinement in estimate Refinement in Estimate [Member] Refinement in Estimate [Member] Asset (Liability) Account Affected [Axis] Asset (Liability) Account Affected [Axis] Asset (Liability) Account Affected [Axis] Asset (Liability) Account Affected [Domain] Asset (Liability) Account Affected [Domain] [Domain] for Asset (Liability) Account Affected [Axis] DAC and VOBA Valuation of Business Acquired and Deferred Acquisition Costs [Member] Valuation of Business Acquired and Deferred Acquisition Costs [Member] Deferred revenue liability Deferred Revenue [Member] Deferred Revenue [Member] Other Comprehensive Income [Line Items] Other Comprehensive Income [Line Items] Other Comprehensive Income [Line Items] Net unrealized gains (losses), before-tax amount Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, before Tax Net realized investment gains, excluding impairment losses, before-tax amount Net Realized Gains Losses From Sales Calls And Other Before Tax Before tax gains and losses resulting from the sales of investment securities, investment securities called or put, sales of real estate, or other investment gains and losses excluding impairment losses. Other-than-temporary impairment losses recognized in earnings, before-tax amount Other Comprehensive Income (Loss), Reclassification Adjustment for Write-down of Securities Included in Net Income, before Tax Other-than-temporary impairment losses recognized in other comprehensive income, before-tax amount Other than Temporary Impairment Losses, Investments, Portion in Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent Net unrealized gains excluding impairment losses, before-tax amount Other Comprehensive Income Net Unrealized Gains Losses Excluding Impairment Losses Other comprehensive income net unrealized gains losses excluding impairment losses before tax. Effect on DAC and VOBA, before-tax amount Other Comprehensive Income (Loss), Effect On Dac And Voba, Before Tax Other comprehensive income loss effect on DAC and VOBA before tax. Future policy benefits, before-tax amount Other Comprehensive Income (Loss), Portion Of Future Policy Benefits, Before Tax Amount Other comprehensive income loss portion of future policy benefits, before tax Policyholder account balances, before-tax amount Other Comprehensive Income Loss Portion Applicable To Policyholder Account Balances Before Tax Other comprehensive income loss portion of policyholder account balances, before tax. Other comprehensive income, before-tax amount Other Comprehensive Income (Loss), before Tax Net unrealized gains (losses), tax (expense) or benefit Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Tax Net realized investment gains, excluding impairment losses, tax (expense) or benefit Net Realized Gains Losses From Sales Calls And Other Tax Tax effect of gains and losses resulting from the sales of investment securities, investment securities called or put, sales of real estate, or other investment gains and losses excluding impairment losses. Other-than-temporary impairment losses recognized in earnings, tax (expense) or benefit Other Comprehensive Income (Loss), Reclassification Adjustment for Write-down of Securities Included in Net Income, Tax Other-than-temporary impairment losses recognized in other comprehensive income, tax (expense) or benefit Other than Temporary Impairment Losses, Investments, Portion in Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent Net unrealized gains excluding impairment losses, tax (expense) or benefit Other Comprehensive Income Net Unrealized Gains Losses Excluding Impairment Losses Tax Other comprehensive income net unrealized gains losses excluding impairment losses tax. Effect on DAC and VOBA, tax (expense) or benefit Other Comprehensive Income Loss Effect On Dac And Voba Tax Expense Other comprehensive income loss effect on DAC and VOBA tax expense. Future policy benefits, tax (expense) or benefit Other Comprehensive Income Loss Portion Of Future Policy Benefits Tax Expense Other Comprehensive Income Loss Portion Of Future Policy Benefits Tax Expense. Policyholder account balances, tax (expense) or benefit Other Comprehensive Income Loss Portion Applicable To Policyholder Account Balances Tax Tax effect of other comprehensive income portion attributable to policyholder account balances. Other comprehensive income, tax (expense) or benefit Other Comprehensive Income (Loss), Tax Net unrealized gains (losses), net-of-tax amount Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax Net realized investment gains, excluding impairment losses, net-of-tax amount Net Realized Gains Losses From Sales Calls And Other Net Of Tax Net of tax amount gains and losses resulting from the sales of investment securities, investment securities called or put, sales of real estate, or other investment gains and losses excluding impairment losses. Other-than-temporary impairment losses recognized in earnings, net-of-tax amount Other Comprehensive Income (Loss), Reclassification Adjustment for Write-down of Securities Included in Net Income, Net of Tax Other-than-temporary impairment losses recognized in other comprehensive income, net-of-tax amount Other than Temporary Impairment Losses, Investments, Portion in Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Net unrealized gains excluding impairment losses, net-of-tax amount Other Comprehensive Income Net Unrealized Gains Losses Excluding Impairment Losses After Tax Other comprehensive income net unrealized gains losses excluding impairment losses after tax. Effect on DAC and VOBA, net-of-tax amount Other Comprehensive Income Loss Effect On Dac And Voba Net Of Tax Other comprehensive income loss effect on DAC and VOBA net of tax. Future policy benefits, net-of-tax amount Other Comprehensive Income Loss Portion Of Future Policy Benefits Net Of Tax Other Comprehensive Income Loss Portion Of Future Policy Benefits Net Of Tax. Policyholder account balances, net-of-tax amount Other Comprehensive Income Loss Portion Applicable To Policyholder Account Balances After Tax Other comprehensive income portion attributable to policyholder account balances, after tax. Other comprehensive income Other Comprehensive Income (Loss), Net of Tax Net income Net Income (Loss) Attributable to Parent COMPREHENSIVE INCOME Comprehensive Income (Loss), Net of Tax, Attributable to Parent One-time refinement in estimate Effects of Refinements in Estimates on Products and Unlocking of Assumptions on Interest Sensitive Products Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Table] Unrealized Gain (Loss) on Non-Impaired Securities Accumulated Net Unrealized Investment Gain (Loss) [Member] Unrealized Gain (Loss) on Impaired Securities Accumulated Other-than-Temporary Impairment [Member] Benefit Plan Obligations Accumulated Defined Benefit Plans Adjustment [Member] DAC/ VOBA Impact Accumulated Deferred Acquisition Costs and Value of Business Acquired [Member] Accumulated Deferred Acquisition Costs and Value of Business Acquired [Member] Future Policy Benefits Accumulated Future Policy Benefits [Member] Accumulated Future Policy Benefits [Member] Policyholder Account Balances Accumulated Policyholder Account Balances [Member] Accumulated Policyholder Account Balances [Member] Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated Other Comprehensive Income (Loss) [Line Items] [Line Items] for Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward] Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward] Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward] Beginning of year Accumulated Other Comprehensive Income (Loss), Net of Tax Other comprehensive income before reclassification Other Comprehensive Income (Loss), before Reclassifications, Net of Tax Other Comprehensive Income (Loss), before Reclassifications, Net of Tax Amounts reclassified from accumulated other comprehensive income Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax End of period Statement of Cash Flows [Abstract] Scenario [Axis] Scenario [Axis] Scenario, Unspecified [Domain] Scenario, Unspecified [Domain] OPERATING ACTIVITIES Net Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile net income to net cash provided by operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Amortization of investment premium and discount Accretion (Amortization) of Discounts and Premiums, Investments Depreciation Depreciation Acquisition costs capitalized Increase (Decrease) in Deferred Policy Acquisition Costs Amortization of deferred acquisition costs Deferred Policy Acquisition Cost, Amortization Expense Realized investment gains Realized Investment Gains (Losses) Changes in assets and liabilities: Increase (Decrease) in Operating Capital [Abstract] Reinsurance recoverables Increase (Decrease) in Reinsurance Recoverable Future policy benefits Increase (Decrease) in Future Policy Benefit Reserves Policyholder account balances Increase Decrease Policyholder Account Balances Change in carrying amount of liabilities as of the balance sheet date for universal life insurance, fixed deferred annuity contracts and investment-type contracts. Income taxes payable and deferred Deferred Income Taxes and Tax Credits Other, net Increase (Decrease) in Other Operating Assets and Liabilities, Net Net cash provided (used) Net Cash Provided by (Used in) Operating Activities INVESTING ACTIVITIES Net Cash Provided by (Used in) Investing Activities [Abstract] Purchases: Payments to Acquire Investments [Abstract] Fixed maturity securities Payments to Acquire Available-for-sale Securities, Debt Equity securities Payments to Acquire Available-for-sale Securities, Equity Mortgage loans Payments to Acquire Mortgage Notes Receivable Real estate Payments to Acquire Real Estate Held-for-investment Policy loans Payments to Fund Policy Loans Sales or maturities, calls, and principal paydowns: Proceeds from Sale, Maturity and Collection of Investments [Abstract] Fixed maturity securities Proceeds from Maturities, Prepayments and Calls of Available-for-sale Securities Equity securities Proceeds from Sale of Available-for-sale Securities, Equity Mortgage loans Proceeds from Sale and Collection of Mortgage Notes Receivable Real estate Proceeds from Sale of Real Estate Held-for-investment, Before Adjustments Cash received from the sale of real estate that is held for investment, that is, held for investments that is before adjustments. It is part of an investing activity during the period. Policy loans Proceeds from Collection of Policy Loans Net sales (purchases) of short-term investments Payments for (Proceeds from) Short-term Investments Net acquisition of property and equipment Payments for (Proceeds from) Productive Assets Net cash provided (used) Net Cash Provided by (Used in) Investing Activities FINANCING ACTIVITIES Net Cash Provided by (Used in) Financing Activities [Abstract] Deposits on policyholder account balances Proceeds From Policyholder Account Balances The cash inflow from liabilities as of the balance sheet date for universal life insurance, fixed deferred annuity contracts and investment-type contracts. Withdrawals from policyholder account balances Withdrawals From Policyholder Account Balances The voluntary or involuntary cash outflows related to the liabilities as of the balance sheet date for universal life insurance, fixed deferred annuity contracts and investment-type contracts. Net transfers from separate accounts Net Change Contract Holders Funds Change in other deposits Increase (Decrease) in Other Deposits Cash dividends to stockholders Payments of Ordinary Dividends, Common Stock Net change in treasury stock Proceeds from (Repurchase of) Equity Net cash provided (used) Net Cash Provided by (Used in) Financing Activities Increase (decrease) in cash Cash and Cash Equivalents, Period Increase (Decrease) Cash at beginning of year Cash Cash at end of period Cash paid during the year for: Supplemental Cash Flow Information [Abstract] Income taxes Income Taxes Paid Financing Receivables Financing Receivables [Text Block] Segment Information Segment Reporting Disclosure [Text Block] Real Estate, Type of Property [Axis] Real Estate, Type of Property [Axis] Real Estate, Property Type [Domain] Real Estate, Property Type [Domain] Prior to 2004 Mortgage Loans Originated Year One [Member] Mortgage Loans Originated Year One [Member] 2004 Mortgage Loans Originated Year Two [Member] Mortgage Loans Originated Year Two [Member] 2005 Mortgage Loans Originated Year Three [Member] Mortgage Loans Originated Year Three [Member] 2006 Mortgage Loans Originated Year Four [Member] Mortgage Loans Originated Year Four [Member] 2007 Mortgage Loans Originated Year Five [Member] Mortgage Loans Originated Year Five [Member] 2008 Mortgage Loans Originated Year Six [Member] Mortgage Loans Originated Year Six [Member] 2009 Mortgage Loans Originated Year Seven [Member] Mortgage Loans Originated Year Seven [Member] 2010 Mortgage Loans Originated Year Eight [Member] Mortgage Loans Originated Year Eight [Member] 2011 Mortgage Loans Originated Year Nine [Member] Mortgage Loans Originated Year Nine [Member] 2012 Mortgage Loans Originated Year Ten [Member] Mortgage Loans Originated Year Ten [Member] 2013 Mortgage Loans Originated Year Eleven [Member] Mortgage loans originated year eleven. Guarantees and Indemnifications [Abstract] Guarantees and Indemnifications [Abstract] Guarantees and Indemnifications Guarantees And Indemnifications [Text Block] Guarantees and Indemnifications Text Block. COMMON STOCK ADDITIONAL PAID IN CAPITAL Additional Paid-in Capital [Member] RETAINED EARNINGS Retained Earnings [Member] ACCUMULATED OTHER COMPREHENSIVE INCOME Accumulated Other Comprehensive Income (Loss) [Member] TREASURY STOCK Treasury Stock [Member] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Beginning of period Excess of proceeds over cost of treasury stock sold Excess Of Proceeds Over Cost Of Treasury Stock Sold Excess of proceeds over cost of treasury stock sold Stockholder dividends of $0.27 per share Dividends, Common Stock, Cash Other comprehensive income Cost of 9,924 shares acquired Treasury Stock, Value, Acquired, Cost Method Cost of 183 shares sold Stock Issued During Period, Value, Treasury Stock Reissued End of period Statement of Financial Position [Abstract] Common stock, par value (USD per share) Common Stock, Par or Stated Value Per Share Common stock, shares authorized Common Stock, Shares Authorized Common stock, shares issued Common Stock, Shares, Issued Treasury stock, shares at cost Treasury Stock, Shares Disclosure Quantitative Information About Level 3 Fair Value Measurements [Abstract] Disclosure - Quantitative Information About Level 3 Fair Value Measurements [Abstract] Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value, Hierarchy [Axis] Fair Value, Hierarchy [Axis] Fair Value, Measurements, Fair Value Hierarchy [Domain] Fair Value, Measurements, Fair Value Hierarchy [Domain] Level 3 Fair Value, Inputs, Level 3 [Member] Range [Axis] Range [Axis] Range [Domain] Range [Domain] Minimum Minimum [Member] Maximum Maximum [Member] Debt securities Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value of Fixed maturity securities Available-for-sale Securities, Fair Value Disclosure Fair Value of Fixed maturity securities on Valuation Technique Fair Value Measurements, Valuation Techniques Fair Value Measurements Unobservable Inputs Fair Value Measurements Unobservable Inputs Fair Value Measurements Unobservable Inputs. Fair value inputs spread adjustment, range Spread Adjustment, Percent Range, Fair Value Measurement Spread adjustment range percentage for fair value measurements. Fair value input spread adjustment, weighted average Spread Adjustment Percent Weighted Average Of Range Fair Value Measurement Weighted average of spread adjustment percentage for fair value measurements. Agent receivables, net Agent Receivables Net [Member] Agent receivables net. Mortgage loans, net Mortgage Loans Net [Member] Mortgage loans net. Financing Receivable, Recorded Investment [Line Items] Financing Receivable, Recorded Investment [Line Items] Allowance for doubtful accounts/ credit losses Financing Receivable, Allowance for Credit Losses Disclosure Schedule Of Changes In Level 3 Assets And Liabilities Measured At Fair Value On Recurring Basis [Abstract] Disclosure - Schedule of Changes in Level 3 Assets and Liabilities Measured at Fair Value on Recurring Basis [Abstract] Schedule of Trading Securities and Other Trading Assets [Table] Schedule of Trading Securities and Other Trading Assets [Table] Asset Class [Axis] Asset Class [Axis] Fair Value by Asset Class [Domain] Fair Value by Asset Class [Domain] Schedule of Available-for-sale Securities [Line Items] Schedule of Available-for-sale Securities [Line Items] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Beginning balance Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value Included in earnings Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings Included in other comprehensive income Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss) Beginning balance Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, Sales, Issues, Settlements [Abstract] Purchases Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases Issuances Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Issues Sales Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales Other dispositions Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements Transfers into Level 3 Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3 Transfers out of Level 3 Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3 Ending balance Net unrealized gains Available-for-sale Securities, Change in Net Unrealized Holding Gain (Loss) before Taxes Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Liabilities, Beginning balance Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value Liabilities, Included in earnings Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings Liabilities, Included in other comprehensive income Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Other Comprehensive Income (Loss) Purchases, issuances, sales and other dispositions: Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases, Sales, Issues, Settlements [Abstract] Liabilities, Purchases Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases Liabilities, Issuances Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Issues Liabilities, Sales Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Sales Liabilities, Other dispositions Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Settlements Liabilities, Transfers into Level 3 Fair Value, Measurement with Unobservable Inputs Reconciliation, Liability, Transfers Into Level 3 Liabilities, Transfers out of Level 3 Fair Value, Measurement with Unobservable Inputs Reconciliation, Liability, Transfers out of Level 3 Liabilities, Ending balance Schedule of Available-for-sale Securities [Table] Schedule of Available-for-sale Securities [Table] Fixed Maturity Securities Available For Sale With Unrealized Losses Fixed Maturity Securities Available For Sale With Unrealized Losses [Member] Fixed Maturity Securities Available For Sale With Unrealized Losses [Member] Total fixed maturity securities, Fair Value Available For Sale Fair Value Total fixed maturity fair value. Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value, Total Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value Due in one year or less, Gross Unrealized Losses Available For Sale Securities Debt Maturities In One Year Or Less Gross Unrealized Losses Available for sale securities debt maturities in one year or less gross unrealized losses. Due after one year through five years, Gross Unrealized Losses Available For Sale Securities Debt Maturities After One Through Five Years Gross Unrealized Losses Available for sale securities debt maturities after one through five years gross unrealized losses. Due after five years through ten years, Gross Unrealized Losses Available For Sale Securities Debt Maturities After Five Through Ten Years Gross Unrealized Losses Available for sale securities debt maturities after five through ten years gross unrealized losses. Due after ten years, Gross Unrealized Losses Available For Sale Securities Debt Maturities After Ten Years Gross Unrealized Loss Available for sale securities debt maturities after ten years gross unrealized loss. Total, Gross Unrealized Losses Fixed Maturity Securities Available For Sale Gross Unrealized Losses Fixed maturity securities available for sale, total gross unrealized losses. Securities with variable principal payments, Gross Unrealized Losses Available For Sale Securities Debt Maturities Without Single Maturity Date Gross Unrealized Losses Available for sale securities debt maturities without single maturity date gross unrealized losses. Redeemable preferred stocks, Gross Unrealized Losses Redeemable Preferred Stock Debt Maturities Gross Unrealized Losses Redeemable preferred stock debt maturities gross unrealized losses. Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses Pensions and Other Postretirement Benefits Pension and Other Postretirement Benefits Disclosure [Text Block] Disclosure Subsequent Events Additional Information [Abstract] Disclosure Subsequent Events Additional Information [Abstract] Subsequent Events Subsequent Events [Text Block] Information about Comprehensive Income Schedule of Comprehensive Income (Loss) [Table Text Block] Accumulated Balances Related to Each Component of Accumulated Other Comprehensive Income Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Reclassification out of Accumulated Other Comprehensive Income Reclassification out of Accumulated Other Comprehensive Income [Table Text Block] Reclassification out of Accumulated Other Comprehensive Income [Table Text Block] Text Block [Abstract] Notes Payable Debt Disclosure [Text Block] Disclosure Summary Of Fair Value Estimates For Financial Instruments [Abstract] Disclosure - Summary of Fair Value Estimates for Financial Instruments [Abstract] Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping, Disclosure Item Amounts [Axis] Fair Value, by Balance Sheet Grouping, Disclosure Item Amounts [Axis] Fair Value, Disclosure Item Amounts [Domain] Fair Value, Disclosure Item Amounts [Domain] Carrying Value Carrying (Reported) Amount, Fair Value Disclosure [Member] Fair Value Estimate of Fair Value, Fair Value Disclosure [Member] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fixed maturity securities available for sale, carrying value Policy loans, carrying value Loans, Gross, Insurance Policy Cash and short-term investments, carrying value Cash, Cash Equivalents, and Short-term Investments Separate account assets, carrying value Separate Account Assets Carrying Value The carrying value of the assets held by the Entity for the benefit of separate account policyholders. Individual and group annuities, carrying value Carrying Value Policy Holder Account Balances Fixed Deferred Annuities The accrued obligation for policyholder account balances that relates to fixed deferred annuities. Supplementary contracts without life contingencies, carrying value Carrying Value Policyholder Account Balances Supplementary Contracts Without Life Contingencies The accrued obligation for policyholder account balances that relates to supplementary contracts without life contingencies. Separate account liabilities, carrying value Separate Accounts Liability Carrying Value The carrying value of the liabilities held by the Entity for the benefit of separate account policyholders. Other policyholder funds - GMWB, carrying value Other Policyholder Funds Carrying Value Other policyholder funds carrying value. Fixed maturity securities available for sale, fair value Mortgage loans, fair value Mortgage Loans On Real Estate Fair Value Of Mortgages The fair value of the outstanding balance due under the mortgage loan. Policy loans, fair value Cash and short-term investments, fair value Cash Cash Equivalents And Short Term Investments Fair Value The fair value of cash, cash equivalents and short term investments. Separate account assets, fair value Separate Account Assets Individual and group annuities, fair value Fair Value Policyholder Account Balances Fixed Deferred Annuities The fair value of the accrued obligation for policyholder account balances that relates to fixed deferred annuities. Supplementary contracts without life contingencies, fair value Fair Value Policyholder Account Balances Supplementary Contracts Without Life Contingencies The fair value of the accrued obligation for policyholder account balances that relates to supplementary contracts without life contingencies. Separate account liabilities, fair value Separate Accounts, Liability Other policyholder funds - GMWB, fair value Other Policyholder Funds Fair Value Other policyholder funds fair value. Variable Interest Entity [Abstract] Variable Interest Entity [Abstract] Schedule of Variable Interest Entities [Table] Schedule of Variable Interest Entities [Table] Variable Interest Entities [Axis] Variable Interest Entities [Axis] Variable Interest Entity, Classification [Domain] Variable Interest Entity, Classification [Domain] Real Estate Joint Ventures Real Estate Joint Ventures [Member] Real Estate Joint Ventures [Member] Affordable Housing Real Estate Joint Ventures Affordable Housing Real Estate Joint Ventures [Member] Affordable Housing Real Estate Joint Ventures [Member] Variable Interest Entity [Line Items] Variable Interest Entity [Line Items] Carrying Amount Variable Interest Entity, Consolidated, Carrying Amount, Assets and Liabilities, Net Maximum Exposure to Loss Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Mortgage loan portfolio Mortgage Loan Portfolio [Member] Mortgage loan portfolio. Portfolio Segment [Axis] Portfolio Segment [Axis] Financing Receivable Allowance [Domain] Financing Receivable Allowance [Domain] Provisions Additions [Member] Additions. Deductions Deductions [Member] Deductions. Accounts, Notes, Loans and Financing Receivable [Line Items] Accounts, Notes, Loans and Financing Receivable [Line Items] Financing Receivable, Allowance for Credit Losses [Roll Forward] Financing Receivable, Allowance for Credit Losses [Roll Forward] Allowance for uncollectible accounts, Beginning of year Financing receivable, allowance for credit losses, period increase (decrease) Financing Receivable, Allowance for Credit Losses, Period Increase (Decrease) Allowance for uncollectible accounts, End of year U.S. Treasury securities and obligations of U.S. Government US Government Agencies Debt Securities [Member] Federal agencies Federal Agencies [Member] Federal agencies. Federal agency issued residential mortgage-backed securities Federal Agency Issued Residential Mortgage Backed Securities [Member] Federal agency issued residential mortgage-backed securities. US treasury securities, subtotal US Treasury Securities [Member] Industrial Energy Energy [Member] Energy. Communications and technology Communications And Technology [Member] Communications and technology. Financial Financial [Member] Financial. Consumer Consumer [Member] Consumer. Public utilities Public Utility, Bonds [Member] Corporate obligations, subtotal Corporate Obligations [Member] Corporate obligations. Corporate private-labeled residential mortgage-backed securities Corporate Private Labeled Residential Mortgage Backed Securities [Member] Corporate private-labeled residential mortgage-backed securities. Municipal securities Municipal Securities [Member] Municipal securities. Other Others [Member] Other. Redeemable preferred stocks Redeemable Preferred Stock [Member] Securities, Amortized Cost Available-for-sale Securities, Amortized Cost Basis Securities, Gross Unrealized Gains Available-for-sale Securities, Gross Unrealized Gains Securities, Gross Unrealized Losses Available-for-sale Securities, Gross Unrealized Losses Fair value Level 1 Fair Value, Inputs, Level 1 [Member] Level 2 Fair Value, Inputs, Level 2 [Member] Debt Security [Axis] Debt Security [Axis] Major Types of Debt Securities [Domain] Major Types of Debt Securities [Domain] Corporate obligations GMWB Guaranteed Minimum Withdrawal Benefits [Member] Guaranteed minimum withdrawal benefits. Summary of Investments, Other than Investments in Related Parties, by Type [Axis] Summary of Investments, Other than Investments in Related Parties, by Type [Axis] Summary of Investments, by Type [Domain] Summary of Investments, by Type [Domain] US treasury securities Other policyholder funds Other Policyholder Funds [Member] Other policyholder funds. Securities Fair Value Percent of total Percentage Of Assets Fair Value Disclosure Percentage of assets fair value disclosure. Liabilities, Fair Value Liabilities, Fair Value Disclosure Document and Entity Information [Abstract] Document and Entity Information [Abstract] Document Information [Table] Document Information [Table] Entity Information [Line Items] Entity Information [Line Items] Document Type Document Type Amendment Flag Amendment Flag Document Period End Date Document Period End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Trading Symbol Trading Symbol Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Entity Filer Category Entity Filer Category Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Accounting Policies [Abstract] Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Significant Accounting Policies Significant Accounting Policies Policy [Text Block] Disclosure of significant accounting policies used. Schedule of Gain (Loss) on Investments [Table] Schedule of Gain (Loss) on Investments [Table] Schedule of Fair Value of Separate Accounts by Major Category of Investment [Axis] Schedule of Fair Value of Separate Accounts by Major Category of Investment [Axis] Schedule of Fair Value of Separate Accounts by Major Category of Investment, Category [Domain] Schedule of Fair Value of Separate Accounts by Major Category of Investment, Category [Domain] Fixed Maturities and Equity Securities Fixed Maturities and Equity Securities [Member] Fixed Maturities and Equity Securities [Member] Gain (Loss) on Investments [Line Items] Gain (Loss) on Investments [Line Items] Sales of investment securities Investment securities called and other Available For Sale Securities Called And Other Gross Realized Gains This item represents the gross profit realized from (but not limited to) calls, principal paydowns, and sinking funds from debt or equity securities categorized neither as held-to-maturity nor trading securities. Sales of real estate Real Estate Gross Realized Gains This item represents the gross profit realized on the sale of real estate. Total gross gains Gross Realized Gains Gross realized gains. Investment securities called and other Available For Sale Securities Called And Other Gross Realized Losses This item represents the gross loss realized from (but not limited to) calls, principal pay downs, and sinking funds from debt or equity securities categorized neither as held-to-maturity nor trading securities. Sale of real estate and joint venture Real Estate and Joint Venture Gross Realized Losses Real Estate and Joint Venture Gross Realized Losses Mortgage loans Mortgage Loans Gross Realized Losses This item represents the gross loss realized on mortgage loans. Total gross losses Gross Realized Losses Gross realized losses. Change in allowance for potential future losses on mortgage loans Change In Allowance For Potential Future Losses On Mortgage Loans Change in allowance for potential future losses on mortgage loans. Amortization of DAC and VOBA Amortization Of Deferred Acquisition Cost And Value Of Business Acquired Net Investment Gains Losses Amount of amortization of deferred policy acquisition costs and value of business acquired due to realized investment gains or losses. Net realized investment gains, excluding impairment losses Realized Investment Gains, Excluding Other Than Temporary Impairment Losses Net realized investment gains, excluding other-than-temporary impairment losses. Total other-than-temporary impairment losses Other than Temporary Impairment Losses, Investments Portion of loss recognized in other comprehensive income Other than Temporary Impairment Losses, Investments, Portion in Other Comprehensive Income (Loss), before Tax, Including Portion Attributable to Noncontrolling Interest, Available-for-sale Securities Net impairment losses recognized in earnings Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net Net realized investment gains (losses) Investment Securities [Table] Investment Securities [Table] Investment Securities [Table] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Subsequent event Subsequent Event [Member] Maturity of Security [Axis] Maturity of Security [Axis] Maturity of Security [Axis] Maturity of Security [Domain] Maturity of Security [Domain] [Domain] for Maturity of Security [Axis] Less than one year Less Than One Year [Member] Less Than One Year [Member] One year or more and less than three years One Year Or More And Less Than Three Years [Member] One Year Or More And Less Than Three Years [Member] Three years or more Three Years Or More [Member] Three Years Or More [Member] Investment Securities [Line Items] Investment Securities [Line Items] Investment Securities [Line Items] Additional review procedure performed, percent of amortized cost Additional Review Procedure Performed Percent Of Amortized Cost Additional review procedures performed for securities where fair value is less than percent of amortized cost. Additional review procedure performed, percent of amortized cost, formal documentation prepared Additional Review Procedure Performed Percent Of Amortized Cost, Formal Documentation Prepared Additional review procedures performed for securities where fair value is less than percent of amortized cost where formal documentation is prepared. Additional review procedure performed, decline in fair market value percent of amortized cost, formal documentation prepared, significant change in investments Additional Review Procedure Performed Percent Of Amortized Cost, Formal Documentation Prepared, Significant Change in Investments Additional review procedures performed for securities where fair value is less than percent of amortized cost where formal documentation is prepared and selected investments have changed significantly from a previous period. Number of fixed maturities and equity securities below cost Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions Allowance for potential future losses Allowance for Loan and Lease Losses, Real Estate Percentage of invested assets in commercial mortgage loans Percentage Of Invested Assets In Commercial Mortgage Loans Percentage of invested assets in commercial mortgage loans. Average loan to value ratio for overall portfolio Average Mortgage Loan To Value Ratio Average loan to value ratio for the overall mortgage loan portfolio. Percentage of concentration of loans by state Minimum Percentage As Concentration Of Mortgage Loans By State Minimum Percentage As Concentration Of Mortgage Loans By State. Loans refinanced Mortgage Loans Refinanced Outstanding balances of refinanced mortgage loans during the period. Maximum period of commits to fund commercial mortgage loans Maximum Period Of Commitment To Fund Commercial Mortgage Loans Maximum period of commitment to fund commercial mortgage loans. Agent specific loans Agent Specific Loans [Member] Agent specific loans. Various agent commission advances and other commission receivables Various Agent Commission Advances And Other Commission Receivables [Member] Various Agent Commission Advances And Other Commission Receivables [Member] Financing Receivable Past Due [Axis] Financing Receivable Past Due [Axis] Financing Receivable Past Due [Axis] Financing Receivable Past Due [Domain] Financing Receivable Past Due [Domain] Financing Receivable Past Due [Domain] 30 or more days past due Thirty Or More Days Past Due [Member] Thirty Or More Days Past Due [Member] 120 days past due One Hundred Twenty Or More Days Past Due [Member] One Hundred Twenty Or More Days Past Due [Member] Financing receivables Financing Receivable Recorded Investment Gross Financing Receivable Recorded Investment Gross. Number of types of agent receivables Number of Types of Agent Receivables Number of Types of Agent Receivables Total financing receivables Financing Receivable Recorded Investment The amount of the recorded investment in a contractual right to receive money on demand or on fixed or determinable dates that is recognized as an asset in the creditor's statement of financial position. Examples include, but are not limited to, accounts receivable (with terms exceeding one year), notes receivable and receivables relating to lessor's rights to payments from leases other than operating leases have been recorded as assets. Mortgage loans 30 days past due Number Of Financing Receivables Thirty Or More Days Past Due Number Of Financing Receivables Thirty Or More Days Past Due Loans past due, days Loans Past Due Days Loans past due, days. Number of loans that have subsequently paid Number Of Financing Receivables Thirty Or More Days Past Due Subsequent Payment Received Number of financing receivables thirty or more days past due, subsequent payment received. Mortgage loans 120 days past due Number Of Financing Receivables One Hundred Twenty Days Past Due Number Of Financing Receivables One Hundred Twenty Days Past Due. Mortgage loans 120 days past due in the process of foreclosure Number Of Financing Receivables One Hundred Twenty Or More Days Past Due, In Process of Foreclosure Number Of Financing Receivables One Hundred Twenty Or More Days Past Due. in Process of Foreclosure Total number of loan defaults Mortgage Loans On Real Estate Number Of Loan Defaults Indicates The Number Of Mortgages Past Due Other than temporary impairment losses Impairment On Foreclosure Of Loan Impairment on foreclosure of loan. Number of mortgage loans in foreclosure process Number Of Mortgage Loans In Foreclosure Process Number of mortgage loans in foreclosure process. Agent receivables, net (allowance $2,259; 2012 - $2,261) Mortgage loans, net (allowance $3,400; 2012 - $3,346) Total financing receivables Financing Receivable, Net Disclosure Schedule Of Financial Performance Of Reportable Segments [Abstract] Disclosure - Schedule of Financial Performance of Reportable Segments [Abstract] Segment Information [Table] Segment Information [Table] Segment Information [Table] Business Segments [Axis] Business Segments [Axis] Segment [Domain] Segment [Domain] Individual Segment Individual Segment [Member] Individual Segment [Member] Group Segment Group Segment [Member] Group Segment [Member] Old American Old American [Member] Old American [Member] Intercompany Eliminations Intersegment Elimination [Member] Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Insurance revenues Insurance Revenues Total insurance revenues includes net premiums and contract charges. Net investment income Net Investment Income Net income (loss) Company's Financing Receivables by Classification Schedule Of Financing Receivables By Classification [Table Text Block] Tabular disclosure of financing receivables. Schedule of Activity of Allowance for Uncollectible Accounts on Agent Receivables Allowance for Credit Losses on Financing Receivables [Table Text Block] Mortgage Loan Portfolio as Collectively or Individually Evaluated for Impairment Mortgage Loans Collectively Or Individually Evaluated For Impairment [Table Text Block] Tabular disclosure of mortgage loan financing receivables evaluated collectively or individually for impairment. Schedule of Activity of the Allowance for Potential Future Losses on Mortgage Loans Schedule Of Activity Of Collectively Evaluated Allowance For Losses On Mortgage Loans [Table Text Block] Schedule of activity of the collectively evaluated allowance for losses on mortgage loans. Schedule for Delinquent Payments for Both Principal and Interest Past Due Financing Receivables [Table Text Block] Schedule of Amortized Cost and Fair Value of Securities Schedule of Available-for-sale Securities Reconciliation [Table Text Block] Schedule of Distribution of Maturities for Fixed Maturity Securities Available for Sale Investments Classified by Contractual Maturity Date [Table Text Block] Schedule of Fixed Maturity and Equity Security Investments Available for Sale with Unrealized Losses Schedule of Unrealized Loss on Investments [Table Text Block] Schedule of Distribution of Maturities for Fixed Maturity Securities Available for Sale with Unrealized Losses Schedule Of Distribution Of Maturities For Fixed Maturity Securities Available For Sale With Unrealized Losses Table [Text Block] Schedule Of Distribution Of Maturities For Fixed Maturity Securities Available For Sale With Unrealized Losses [Table Text Block] Reconciliation of Credit Losses Recognized in Earnings on Fixed Maturity Securities Held by the Company Other than Temporary Impairment, Credit Losses Recognized in Earnings [Table Text Block] Schedule of Realized Gain (Loss) on Investments Realized Gain (Loss) on Investments [Table Text Block] Schedule of Sales of Fixed Maturity and Equity Securities Excluding Maturities and Calls Schedule Of Proceeds From Sales Of Fixed Maturities And Equity Securities Table [Text Block] Schedule of proceeds from sales of fixed maturity and equity securities, excluding maturities and calls, and the related gross realized gains and losses. Gross Mortgage Loan Principal Outstanding and Allowance for Potential Future Losses Gross Mortgage Loan Principal Outstanding And Allowance For Potential Future Losses Table [Text Block] Gross mortgage loan principal outstanding and allowance for potential future losses. Schedule of Amount of Mortgage Loans Schedule Of Amount Of Mortgage Loans By Year Of Origination Table [Text Block] Schedule of amount of mortgage loans by year of origination. Schedule of Mortgage Loans by Geographic Location Schedule of Mortgage Loans by Geographic Location [Table Text Block] Schedule of Mortgage Loans by Geographic Location [Table Text Block] Schedule of Concentration of Mortgage Loans by State Greater than Five Percent Schedule Of Concentration Of Mortgage Loans By State Greater Than Five Percent Table [Text Block] Schedule Of Concentration Of Mortgage Loans By State Greater Than Five Percent [Table Text Block] Schedule of Mortgage Loans by Property Type Schedule Of Mortgage Loans By Property Type Table [Text Block] Schedule Of Mortgage Loans By Property Type [Table Text Block] Schedule of Carrying Amount of Mortgage Loans by Maturity Schedule Carrying Amount Of Mortgage Loans By Maturity Table [Text Block] Schedule Carrying Amount Of Mortgage Loans By Maturity [Table Text Block] Less Than 12 Months, Fair Value Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value Less Than 12 Months, Unrealized Losses Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses 12 Months or Longer, Fair Value Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value 12 Months or Longer, Unrealized Losses Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses Investment Geographic Region [Axis] Investment Geographic Region [Axis] Investment Geographic Region [Domain] Investment Geographic Region [Domain] California California [Member] California [Member] Texas Texas [Member] Texas [Member] Minnesota Minnesota [Member] Minnesota [Member] Florida Florida [Member] Florida [Member] All others All Others [Member] All Others [Member] Mortgages loans, carrying amount Mortgage Loans on Real Estate, Carrying Amount of Mortgages New Accounting Pronouncements [Abstract] New Accounting Pronouncements [Abstract] New Accounting Pronouncements New Accounting Pronouncements [Text Block] New accounting pronouncements. Income Tax Disclosure [Abstract] Effective income tax rate Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract] Federal income tax rate Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate Tax credits, net of equity adjustment Effective Income Tax Rate Reconciliation, Tax Credits Permanent differences Effective Income Tax Rate Reconciliation Permanent Differences The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate attributable to permanent differences. Effective income tax rate Effective Income Tax Rate, Continuing Operations Credit Losses Recognized in Earnings on Fixed Maturity Securities [Roll Forward] Credit Losses Recognized in Earnings on Fixed Maturity Securities [Roll Forward] Credit Losses Recognized in Earnings on Fixed Maturity Securities [Roll Forward] Credit losses on securities held at beginning of the period in accumulated other comprehensive income Other than Temporary Impairment, Credit Losses Recognized in Earnings, Credit Losses on Debt Securities Held Additions for credit losses not previously recognized in other-than-temporary impairment Other than Temporary Impairment, Credit Losses Recognized in Earnings, Additions, No Previous Impairment Additions for increases in the credit loss for which an other-than-temporary impairment was previously recognized when there was no intent to sell the security before recovery of its amortized cost basis Other than Temporary Impairment, Credit Losses Recognized in Earnings, Additions, Additional Credit Losses Reductions for securities sold during the period (realized) Other than Temporary Impairment, Credit Losses Recognized in Earnings, Reductions, Securities Sold Reductions for securities previously recognized in other comprehensive income because of intent to sell the security before recovery of its amortized cost basis Other than Temporary Impairment, Credit Losses Recognized in Earnings, Reductions, Change in Status Reductions for increases in cash flows expected to be collected that are recognized over the remaining life of the security Other than Temporary Impairment, Credit Losses Recognized in Earnings, Reductions, Cash Flows Credit losses on securities held at the end of the period in accumulated other comprehensive income Principal outstanding Components of Net Periodic Benefit Cost Schedule of Net Benefit Costs [Table Text Block] Carrying Amount and Maximum Exposure to Loss Relating to VIEs Schedule Of Carrying Amount And Maximum Exposure To Loss Table [Text Block] Schedule of carrying amount and maximum exposure to loss. Separate Accounts Disclosure [Abstract] Separate Accounts Separate Accounts [Text Block] Separate Accounts Text Block. ASSETS Assets [Abstract] Investments: Fixed maturity securities available for sale, at fair value Equity securities available for sale, at fair value Available-for-sale Securities, Equity Securities Mortgage loans Real estate Real Estate Investments, Net Policy loans Short-term investments Other Short-term Investments Other investments Other Investments Total investments Investments Cash Accrued investment income Accrued Investment Income Receivable Deferred acquisition costs Deferred Policy Acquisition Costs Reinsurance recoverables Reinsurance Recoverables Property and equipment Property, Plant and Equipment, Net Other assets Other Assets Separate account assets Total assets Assets LIABILITIES Liabilities [Abstract] Future policy benefits Liability for Future Policy Benefits Policyholder account balances Policyholder Contract Deposits Policy and contract claims Liability for Claims and Claims Adjustment Expense Other policyholder funds Other Policyholder Funds Other liabilities Other Liabilities Separate account liabilities Total liabilities Liabilities STOCKHOLDERS' EQUITY Stockholders' Equity Attributable to Parent [Abstract] Common stock, par value $1.25 per share Authorized 36,000,000 shares, issued 18,496,680 shares Common Stock, Value, Issued Additional paid in capital Additional Paid in Capital, Common Stock Retained earnings Retained Earnings (Accumulated Deficit) Accumulated other comprehensive income Treasury stock, at cost (2013 - 7,473,564 shares; 2012 - 7,463,823 shares) Treasury Stock, Value Total stockholders’ equity Total liabilities and stockholders’ equity Liabilities and Equity Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Schedule of Fair Value of Fixed Maturities and Equity Securities Fair Value, Assets Measured on Recurring Basis [Table Text Block] Schedule of Changes in Level 3 Assets and Liabilities Measured at Fair Value on a Recurring Basis Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Table Text Block] Quantitative Information About Level 3 Fair Value Measurements Fair Value Inputs, Assets, Quantitative Information [Table Text Block] Summary of Fair Value Estimates for Financial Instruments Fair Value, by Balance Sheet Grouping [Table Text Block] Schedule of Effective Income Tax Rate Reconciliation Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Comprehensive Income Comprehensive Income (Loss) Note [Text Block] Disclosure of Compensation Related Costs, Share-based Payments [Abstract] Share-Based Compensation Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Contingencies And Commitments [Table] Contingencies And Commitments [Table] Contingencies And Commitments [Table] Purchase Commitment, Excluding Long-term Commitment [Axis] Purchase Commitment, Excluding Long-term Commitment [Axis] Purchase Commitment, Excluding Long-term Commitment [Domain] Purchase Commitment, Excluding Long-term Commitment [Domain] Construction-to-Permanent Loan Construction To Permanent Loan [Member] Construction To Permanent Loan [Member] Real Estate Investments Real Estate Investment [Member] Commercial Loan Commercial Loan [Member] Purchase Commitment, Excluding Long-term Commitment [Line Items] Purchase Commitment, Excluding Long-term Commitment [Line Items] Commitments to fund mortgage loans and other investments Purchase Commitment, Remaining Minimum Amount Committed Number of construction to permanent loan Number Of Construction To Permanent Loans To Be Funded Number Of Construction To Permanent Loans To Be Funded Adjustments for Error Corrections [Axis] Adjustments for Error Corrections [Axis] Adjustments for Error Correction [Domain] Adjustments for Error Correction [Domain] Immaterial Correction Of Error Pension Before Tax [Member] Immaterial Correction Of Error Pension Before Tax [Member] Immaterial Correction Of Error Pension Before Tax Member Immaterial Correction Of Error Pension After Tax [Member] Immaterial Correction Of Error Pension After Tax [Member] Immaterial Correction Of Error Pension AfterTax Member Quantifying misstatement in current year financial statements Quantifying Misstatement in Current Year Financial Statements, Amount Current tax liability Taxes Payable, Current Deferred tax liability Deferred Tax Liabilities, Net, Noncurrent Disclosure Fair Value Measurements Additional Information [Abstract] Disclosure Fair Value Measurements Additional Information [Abstract] Percentage of carrying value of investments from external pricing services Percentage Of Carrying Value Of Investments From External Pricing Services Percentage of carrying value of investments from external pricing services. Percentage of carrying value of investments from brokers Percentage Of Carrying Value Of Investments From Brokers Percentage of carrying value of investments from brokers. Percentage of carrying value of investments from internal matrices and calculations Percentage Of Carrying Value Of Investments From Internal Matrices And Calculations Percentage of carrying value of investments from internal matrices and calculations. Prices obtained for the number of securities from brokers Prices Obtained For Number Of Securities From Brokers Prices obtained for the number of securities from brokers. Number of securities on which company internally determined the prices Number Of Securities On Which Company Internally Determined Prices Number of securities on which Company internally determined the prices. Estimated increase in spread of fixed maturity securities Estimated Increase In Basis Spread Of Fixed Maturity Securities Estimated increase in Basis Spread of fixed maturity securities. Reduction in reported fair value Estimated Reduction In Fair Value Of Fixed Maturity Securities Estimated Reduction in fair value of fixed maturity securities. Average number of shares outstanding Average Number Of Shares Outstanding Both Basic And Diluted Average number of shares outstanding both basic and diluted. Number of shares outstanding Common Stock, Shares, Outstanding Pacific Pacific [Member] Pacific [Member] West north central West North Central [Member] West North Central [Member] West south central West South Central [Member] West South Central [Member] Mountain Mountain [Member] Mountain [Member] South Atlantic South Atlantic [Member] South Atlantic [Member] Middle Atlantic Middle Atlantic [Member] Middle Atlantic [Member] East north central East North Central [Member] East North Central [Member] East south central East South Central [Member] East South Central [Member] Other Other Financing Receivables [Member] Other Financing Receivables [Member] Disclosure Schedule Of Fair Value Of Fixed Maturities And Equity Securities [Abstract] Disclosure - Schedule of Fair Value of Fixed Maturities and Equity Securities [Abstract] Priced from external pricing services Priced From External Pricing Service [Member] Priced from external pricing service. Priced from independent broker quotations Priced From Independent Brokers [Member] Priced from independent brokers. Priced from internal matrices and calculations Priced From Internal Matrices And Calculations [Member] Priced from internal matrices and calculations. Equity securities available for sale, fair value Additions Credit Quality Indicator [Axis] Credit Quality Indicator [Axis] Financing Receivable, by Credit Quality Indicator [Domain] Financing Receivable, by Credit Quality Indicator [Domain] Uncollectible receivables Unlikely to be Collected Financing Receivable [Member] Financing Receivable, Allowance for Credit Losses [Line Items] Financing Receivable, Allowance for Credit Losses [Line Items] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Award Type [Axis] Award Type [Axis] Award Type [Domain] Award Type [Domain] Phantom shares Phantom Share Units (PSUs) [Member] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Calculation period Share-based Compensation Arrangement by Share-based Payment Award, Calculation Period Share-based Compensation Arrangement by Share-based Payment Award, Calculation Period Payments made under share based compensation Payments Made Under Share Based Compensation Payments made under share based compensation. Change in accrual for share-based compensation expenses Allocated Share-based Compensation Expense Investments Investment [Text Block] Variable Interest Entity Variable Interest Entity, Not Primary Beneficiary [Member] Mortgage Loan Commitment Mortgage Loan Commitment [Member] Mortgage Loan Commitment [Member] Equity Commitment Equity Commitment [Member] Equity Commitment [Member] Number of ventures invested by company Number Of Ventures Invested By Company Number of ventures invested by company. Mortgage loans, carrying value Losses realizable if tax credits received were recaptured Losses Realizable Tax Credits Recaptured The reporting entity's amount of losses realizable if the tax credits received by the Variable Interest Entity were recaptured. Maximum exposure to loss, required compliance period, years Maximum Exposure To Loss Required Compliance Period Maximum exposure to loss required compliance period. Subsequent Event [Table] Subsequent Event [Table] Subsequent Event [Line Items] Subsequent Event [Line Items] Dividend payable (USD per share) Dividends Payable, Amount Per Share Net Amount at Risk, by Product and Guarantee [Table] Net Amount at Risk, by Product and Guarantee [Table] Guarantee Type [Axis] Guarantee Type [Axis] Guaranteed Insurance Benefit Type [Domain] Guaranteed Insurance Benefit Type [Domain] Guaranteed minimum withdrawal benefit Guaranteed Minimum Withdrawal Benefit [Member] Net Amount at Risk by Product and Guarantee [Line Items] Net Amount at Risk by Product and Guarantee [Line Items] Value of variable annuity separate accounts Net Amount at Risk by Product and Guarantee, Separate Account Value Separate accounts guarantee liability Separate Accounts Guarantee Liability Separate accounts guarantee liability where a negative value is an asset (or negative liability) and a positive value is a liability. Income Taxes Income Tax Disclosure [Text Block] Income Statement [Abstract] Insurance revenues: Net Insurance Income [Abstract] Net insurance income. Net premiums Premiums Earned, Net Contract charges Insurance Commissions and Fees Total insurance revenues Investment revenues: Net Investment Income [Abstract] Net realized investment gains, excluding other-than-temporary impairment losses Realized Investment Gains Excluding Impairment Losses Net realized investment gains, excluding impairment losses. Net impairment losses recognized in earnings: Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net, by Investment Category [Abstract] Portion of impairment losses recognized in other comprehensive income Net other-than-temporary impairment losses recognized in earnings Total investment revenues Investment Revenues Includes net investment income plus realized gains & losses recognized in the earnings. Other revenues Other Income Total revenues Revenues BENEFITS AND EXPENSES Benefits, Losses and Expenses [Abstract] Policyholder benefits Policyholder Benefits and Claims Incurred, Net Interest credited to policyholder account balances Interest Credited to Policyholders Account Balances Operating expenses Operating Expenses Total benefits and expenses Benefits, Losses and Expenses Income before income tax expense Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest Income tax expense Income Tax Expense (Benefit) NET INCOME COMPREHENSIVE INCOME, NET OF TAXES Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract] Change in net unrealized gains on securities available for sale Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax Change in future policy benefits Other Comprehensive Income, Future Policy Benefits, Net Of Tax, Period Increase (Decrease) Other comprehensive income future policy benefits net of tax period increase decrease. Change in policyholder account balances Other Comprehensive Income Policyholder Account Balances Net Of Tax Period Increase Decrease Other comprehensive income policyholder account balances net of tax period increase decrease. Basic and diluted earnings per share: Earnings Per Share, Basic and Diluted [Abstract] Net income (USD per share) Earnings Per Share, Basic and Diluted Disclsoure Information About Comprehensive Income [Abstract] Disclsoure Information About Comprehensive Income [Abstract] Reclassification out of Accumulated Other Comprehensive Income [Table] Reclassification out of Accumulated Other Comprehensive Income [Table] Reclassification out of Accumulated Other Comprehensive Income [Table] Reclassification out of Accumulated Other Comprehensive Income [Axis] Reclassification out of Accumulated Other Comprehensive Income [Axis] Reclassification out of Accumulated Other Comprehensive Income [Axis] Reclassification out of Accumulated Other Comprehensive Income [Domain] Reclassification out of Accumulated Other Comprehensive Income [Domain] [Domain] for Reclassification out of Accumulated Other Comprehensive Income [Axis] Reclassification out of accumulated other comprehensive income Reclassification out of Accumulated Other Comprehensive Income [Member] Reclassification out of Accumulated Other Comprehensive Income [Member] Reclassification Out of Accumulated Other Comprehensive Income [Line Items] Reclassification Out of Accumulated Other Comprehensive Income [Line Items] [Line Items] for Reclassification Out of Accumulated Other Comprehensive Income [Table] Other comprehensive income (loss), before tax Other comprehensive income (loss), tax Nature of Operations and Significant Accounting Policies Basis of Presentation and Significant Accounting Policies [Text Block] Variable Interest Entities Variable Interest Entities Disclosure [Text Block] Variable interest entities.