New Accounting Pronouncements (Policies)	3 Months Ended
Mar. 31, 2018
Accounting Policies [Abstract]
New Accounting Pronouncements	Recent accounting pronouncements not yet adopted In June 2016, the FASB released Accounting Standards Update ("ASU") 2016-13, Financial Instruments-Credit Losses, which revises the credit loss recognition criteria for certain financial assets measured at amortized cost. The new guidance replaces the existing incurred loss recognition model with an expected loss recognition model. The objective of the expected credit loss model is for the reporting entity to recognize its estimate of expected credit losses for affected financial assets in a valuation allowance deducted from the amortized cost basis of the related financial assets that results in presenting the net carrying value of the financial assets at the amount expected to be collected. The guidance is effective for interim and annual periods beginning after December 15, 2019, and for most affected instruments must be adopted using a modified retrospective approach, with a cumulative effect adjustment recorded to beginning retained income. Adoption of the guidance is not expected to have a material effect on the Company’s results of operations or financial position. In March 2017, the FASB issued ASU 2017-08, Receivables - Nonrefundable Fees and Other Costs: Premium Amortization on Purchased Callable Debt Securities, which amends the amortization period for certain purchased callable debt securities held at a premium. The amortization period for premiums is being shortened to the earliest call date. This guidance is effective for fiscal years, and interim periods within those years, beginning after December 15, 2018. Adoption of the guidance is not expected to have a material effect on the Company’s results of operations or financial position. In July 2017, the FASB released ASU 2017-11, Earnings Per Share; Distinguishing Liabilities from Equity; and, Derivatives and Hedging. This update includes: (I) Accounting for Certain Financial Instruments with Down Round Features, and (II) Replacement of the Indefinite Deferral for Mandatorily Redeemable Financial Instruments of Certain Nonpublic Entities and Certain Mandatorily Redeemable Noncontrolling Interest with a Scope Exception. Part I of this update changes the classification analysis of certain equity-linked financial instruments with down round features. When determining whether certain financial instruments should be classified as liabilities or equity instruments, a down round feature no longer precludes equity classification when assessing whether the instrument is indexed to an entity’s own stock. Part II of this update recharacterizes the indefinite deferral of certain provisions of Topic 480 that now are presented as pending content in the Codification, to a scope exception. Those amendments do not have an accounting effect. The Company does not expect a material effect on the results of operations or financial position with the adoption of this ASU. Recent accounting pronouncements adopted In January 2018, the Company adopted ASU 2017-07 Compensation-Retirement Benefits (Topic 615): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost. The new guidance requires that an employer that offers to its employees defined benefit pension or other postretirement benefit plans report the service cost component in the same line item or items as other compensation costs. The other components of net periodic benefit cost are required to be presented in the income statement separately from the service cost component and outside a subtotal of income from operations, if one is presented. If a separate line item is not used, the line item used in the income statement to present the other components of net periodic benefit cost must be disclosed. In addition, the guidance allows only the service cost component to be eligible for capitalization when applicable. The adoption of the guidance did not have a material impact on the Company’s consolidated financial statements. In February 2018, the FASB released ASU 2018-02, Income Statement - Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income. The update addresses certain stranded income tax effects in accumulated other comprehensive income caused by the Tax Cuts and Job Act ("Tax Act") which was passed in December 2017. Under the new FASB rules, financial statement preparers are provided the option to reclassify stranded tax effects within accumulated other comprehensive income in each period in which the effect of the change in the U.S. federal corporate income tax rate in the Tax Act is recorded. Companies must apply the new guidance for fiscal years, including interim periods within such years, starting after December 15, 2018, with early adoption permitted. The amendments are to be applied in either the period of adoption or retrospectively to each period (or periods) in which the effect of the change in the federal corporate income tax rate from the Tax Act is recognized. The Company's accounting policy for the release of stranded tax effects in AOCI is on an aggregate portfolio basis. The Company elected to adopt the requirements of this update in its Consolidated Financial Statements for the year ended December 31, 2017 and has reported the resultant reclassification amount, $2.5 million, as a charge to Retained Earnings in the accompanying Consolidated Statements of Changes in Stockholders' Equity. In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606). The guidance requires companies to recognize revenue that depicts the transfer of promised goods or services to customers in an amount that reflects the consideration to which the company expects to be entitled in exchange for those goods or services. As an insurance enterprise, the primary sources of revenue are excluded from this guidance, including insurance premiums, contract charges, and investment revenues. We have certain types of non-insurance and non-investment revenue from contracts with customers that fall under this guidance. These revenues are recognized when obligations under the terms of the contract are satisfied. The amount of revenue recognized reflects the consideration we expect to be entitled to in exchange for those services. For these revenues, the performance obligation is fulfilled as services are rendered. Revenues from contracts with customers identified under Topic 606 are not material, approximately 2% of total revenues for the year ended December 31, 2017. The guidance was effective for reporting periods beginning after December 15, 2017. The adoption of this ASU did not have a material effect on the results of operations or financial position of the Company. In January 2016, the FASB released ASU 2016-01, Recognition and Measurement of Financial Assets and Liabilities. The main provisions of the update eliminate the available for sale classification of accounting for equity securities and to adjust the fair value disclosures for financial instruments carried at amortized costs such that the disclosed fair values represent an exit price as opposed to an entry price. The provisions of this update require that equity securities be carried at fair market value on the balance sheet and any periodic changes in value be recorded as adjustments directly to the income statement. The provisions of this update became effective for the Company beginning January 1, 2018. The prospective adoption of this update resulted in the reclassification of $4.4 million pertaining to unrealized gains, net of tax, out of Accumulated Other Comprehensive Income into Retained Earnings as a cumulative effect of a change in accounting principle, as shown in the Condensed Consolidated Statements of Changes in Stockholders' Equity. Equity securities, previously included in Securities Available for Sale are now reported as a separate line item on the Consolidated Balance Sheet. The change in fair value of equity securities, previously reported in Other Comprehensive income, is now included in Net investment income in the Condensed Consolidated Statements of Earnings. As the Company's equity securities holdings are not significant, the adoption of the requirements of this update did not have a material impact on the Company’s financial position, results of operations or cash flows. In May 2017, the FASB released ASU 2017-09, Compensation - Stock Compensation. The update provides guidance about which changes to the terms or conditions of a share-based payment award require an entity to apply modification accounting in Accounting Standards Codification ("ASC") Topic 718. An entity shall account for the effects of a modification described in ASC paragraphs 718-20-35-3 through 35-9, unless all the following are met: (1) The fair value of the modified award is the same as the fair value of the original award immediately before the original award is modified; (2) The vesting conditions of the modified award are the same as the vesting conditions of the original award immediately before the original award is modified; and (3) The classification of the modified award as an equity instrument or a liability instrument is the same as the classification of the original award immediately before the original award is modified. The provisions of this update became effective for annual periods and interim periods within those annual periods beginning after December 15, 2017. The adoption of this ASU did not have a material effect on the results of operations or financial position of the Company. Other recent accounting pronouncements issued by the FASB (including its Emerging Issues Task Force), the AICPA, and the SEC did not, or are not believed by management to, have a material impact on the Company’s present or future Consolidated Financial Statements.

Recent accounting pronouncements not yet adopted

In June 2016, the FASB released Accounting Standards Update ("ASU") 2016-13, Financial Instruments-Credit Losses, which revises the credit loss recognition criteria for certain financial assets measured at amortized cost. The new guidance replaces the existing incurred loss recognition model with an expected loss recognition model. The objective of the expected credit loss model is for the reporting entity to recognize its estimate of expected credit losses for affected financial assets in a valuation allowance deducted from the amortized cost basis of the related financial assets that results in presenting the net carrying value of the financial assets at the amount expected to be collected. The guidance is effective for interim and annual periods beginning after December 15, 2019, and for most affected instruments must be adopted using a modified retrospective approach, with a cumulative effect adjustment recorded to beginning retained income. Adoption of the guidance is not expected to have a material effect on the Company’s results of operations or financial position.

In March 2017, the FASB issued ASU 2017-08, Receivables - Nonrefundable Fees and Other Costs: Premium Amortization on Purchased Callable Debt Securities, which amends the amortization period for certain purchased callable debt securities held at a premium. The amortization period for premiums is being shortened to the earliest call date. This guidance is effective for fiscal years, and interim periods within those years, beginning after December 15, 2018. Adoption of the guidance is not expected to have a material effect on the Company’s results of operations or financial position.

In July 2017, the FASB released ASU 2017-11, Earnings Per Share; Distinguishing Liabilities from Equity; and, Derivatives and Hedging. This update includes: (I) Accounting for Certain Financial Instruments with Down Round Features, and (II) Replacement of the Indefinite Deferral for Mandatorily Redeemable Financial Instruments of Certain Nonpublic Entities and Certain Mandatorily Redeemable Noncontrolling Interest with a Scope Exception. Part I of this update changes the classification analysis of certain equity-linked financial instruments with down round features. When determining whether certain financial instruments should be classified as liabilities or equity instruments, a down round feature no longer precludes equity classification when assessing whether the instrument is indexed to an entity’s own stock. Part II of this update recharacterizes the indefinite deferral of certain provisions of Topic 480 that now are presented as pending content in the Codification, to a scope exception. Those amendments do not have an accounting effect. The Company does not expect a material effect on the results of operations or financial position with the adoption of this ASU.

Recent accounting pronouncements adopted

In January 2018, the Company adopted ASU 2017-07 Compensation-Retirement Benefits (Topic 615): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost. The new guidance requires that an employer that offers to its employees defined benefit pension or other postretirement benefit plans report the service cost component in the same line item or items as other compensation costs. The other components of net periodic benefit cost are required to be presented in the income statement separately from the service cost component and outside a subtotal of income from operations, if one is presented. If a separate line item is not used, the line item used in the income statement to present the other components of net periodic benefit cost must be disclosed. In addition, the guidance allows only the service cost component to be eligible for capitalization when applicable. The adoption of the guidance did not have a material impact on the Company’s consolidated financial statements.

In February 2018, the FASB released ASU 2018-02, Income Statement - Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income. The update addresses certain stranded income tax effects in accumulated other comprehensive income caused by the Tax Cuts and Job Act ("Tax Act") which was passed in December 2017. Under the new FASB rules, financial statement preparers are provided the option to reclassify stranded tax effects within accumulated other comprehensive income in each period in which the effect of the change in the U.S. federal corporate income tax rate in the Tax Act is recorded. Companies must apply the new guidance for fiscal years, including interim periods within such years, starting after December 15, 2018, with early adoption permitted. The amendments are to be applied in either the period of adoption or retrospectively to each period (or periods) in which the effect of the change in the federal corporate income tax rate from the Tax Act is recognized. The Company's accounting policy for the release of stranded tax effects in AOCI is on an aggregate portfolio basis. The Company elected to adopt the requirements of this update in its Consolidated Financial Statements for the year ended December 31, 2017 and has reported the resultant reclassification amount, $2.5 million, as a charge to Retained Earnings in the accompanying Consolidated Statements of Changes in Stockholders' Equity.

In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606). The guidance requires companies to recognize revenue that depicts the transfer of promised goods or services to customers in an amount that reflects the consideration to which the company expects to be entitled in exchange for those goods or services. As an insurance enterprise, the primary sources of revenue are excluded from this guidance, including insurance premiums, contract charges, and investment revenues. We have certain types of non-insurance and non-investment revenue from contracts with customers that fall under this guidance. These revenues are recognized when obligations under the terms of the contract are satisfied. The amount of revenue recognized reflects the consideration we expect to be entitled to in exchange for those services. For these revenues, the performance obligation is fulfilled as services are rendered. Revenues from contracts with customers identified under Topic 606 are not material, approximately 2% of total revenues for the year ended December 31, 2017. The guidance was effective for reporting periods beginning after December 15, 2017. The adoption of this ASU did not have a material effect on the results of operations or financial position of the Company.

In January 2016, the FASB released ASU 2016-01, Recognition and Measurement of Financial Assets and Liabilities. The main provisions of the update eliminate the available for sale classification of accounting for equity securities and to adjust the fair value disclosures for financial instruments carried at amortized costs such that the disclosed fair values represent an exit price as opposed to an entry price. The provisions of this update require that equity securities be carried at fair market value on the balance sheet and any periodic changes in value be recorded as adjustments directly to the income statement. The provisions of this update became effective for the Company beginning January 1, 2018. The prospective adoption of this update resulted in the reclassification of $4.4 million pertaining to unrealized gains, net of tax, out of Accumulated Other Comprehensive Income into Retained Earnings as a cumulative effect of a change in accounting principle, as shown in the Condensed Consolidated Statements of Changes in Stockholders' Equity. Equity securities, previously included in Securities Available for Sale are now reported as a separate line item on the Consolidated Balance Sheet. The change in fair value of equity securities, previously reported in Other Comprehensive income, is now included in Net investment income in the Condensed Consolidated Statements of Earnings. As the Company's equity securities holdings are not significant, the adoption of the requirements of this update did not have a material impact on the Company’s financial position, results of operations or cash flows.

In May 2017, the FASB released ASU 2017-09, Compensation - Stock Compensation. The update provides guidance about which changes to the terms or conditions of a share-based payment award require an entity to apply modification accounting in Accounting Standards Codification ("ASC") Topic 718. An entity shall account for the effects of a modification described in ASC paragraphs 718-20-35-3 through 35-9, unless all the following are met: (1) The fair value of the modified award is the same as the fair value of the original award immediately before the original award is modified; (2) The vesting conditions of the modified award are the same as the vesting conditions of the original award immediately before the original award is modified; and (3) The classification of the modified award as an equity instrument or a liability instrument is the same as the classification of the original award immediately before the original award is modified. The provisions of this update became effective for annual periods and interim periods within those annual periods beginning after December 15, 2017. The adoption of this ASU did not have a material effect on the results of operations or financial position of the Company.

Other recent accounting pronouncements issued by the FASB (including its Emerging Issues Task Force), the AICPA, and the SEC did not, or are not believed by management to, have a material impact on the Company’s present or future Consolidated Financial Statements.