SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	12 Months Ended
Dec. 31, 2016
Accounting Policies [Abstract]
Nature of operations	Description of Business EMC Insurance Group Inc., a majority owned subsidiary of Employers Mutual Casualty Company (Employers Mutual), is an insurance holding company with operations in property and casualty insurance and reinsurance. The Company conducts its property and casualty insurance operations through the following subsidiaries: EMCASCO Insurance Company, Illinois EMCASCO Insurance Company and Dakota Fire Insurance Company, and its reinsurance operations through its subsidiary, EMC Reinsurance Company. The Company also has an excess and surplus lines insurance agency subsidiary, EMC Underwriters, LLC. The term “Company” is used interchangeably to describe EMC Insurance Group Inc. (Parent Company only) and EMC Insurance Group Inc. and its subsidiaries. The Company writes property and casualty insurance in both commercial and personal lines of insurance, with a focus on medium-sized commercial accounts. Approximately 37 percent of the premiums written are in Iowa and contiguous states. The Company’s reinsurance business is primarily written through a quota share reinsurance agreement with Employers Mutual. A small portion of the assumed reinsurance business is written on a direct basis, outside the quota share reinsurance agreement.
Principles of Consolidation and Basis of Presentation	Principles of Consolidation and Basis of Presentation The consolidated financial statements have been prepared on the basis of U.S. generally accepted accounting principles (GAAP), which differ in some respects from those followed in reports to insurance regulatory authorities. All significant inter-company balances and transactions have been eliminated. The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements, as well as the reported amounts of revenues and expenses during the reporting periods. Actual results could differ from those estimates. The Company has evaluated all subsequent events through the date the financial statements were issued.
Property and Casualty Insurance and Reinsurance Operations	Property and Casualty Insurance and Reinsurance Operations Premiums written is the amount charged for policies issued during a reporting period. Property and casualty insurance premiums are recognized as revenue ratably over the terms of the respective policies. Unearned premiums are calculated on the daily pro rata method. Both domestic and foreign assumed reinsurance premiums are recognized as revenues ratably over the terms of the related contracts and underlying policies. Amounts paid as ceded reinsurance premiums are reported as prepaid reinsurance premiums and are amortized over the remaining contract period in proportion to the amount of reinsurance protection provided. Reinsurance reinstatement premiums are recognized in the same period as the loss event that gave rise to the reinstatement premiums. Costs related to the acquisition of insurance contracts are deferred and amortized to expense as the associated premium revenue is recognized. Only incremental costs or costs directly related to the successful acquisition of new or renewal insurance contracts are capitalized. Accordingly, acquisition costs consist of commissions, premium taxes, and salary and benefit expenses of employees directly involved in the underwriting of insurance policies that are successfully issued. The method followed in computing deferred policy acquisition costs limits the amount of such deferred costs to the estimated realizable value. In determining estimated realizable value, the computation gives effect to the premium to be earned, related investment income, anticipated losses and settlement expenses, anticipated policyholder dividends, and certain other costs expected to be incurred to administer the insurance policies as the premium is earned. The anticipated losses and settlement expenses are not discounted and are based on the Company’s projected loss and settlement expense ratios for the next twelve months, which include catastrophe loads based on historical results adjusted for recent trends. The occurrence of a significant catastrophic event, and/or the accumulation of catastrophe losses would not have a direct impact on the determination of premium deficiencies; however, such occurrences would be included in the historical results that are used to establish the catastrophe loads. A premium deficiency is first recognized by expensing the amount of unamortized deferred policy acquisition costs necessary to eliminate the deficiency. If the premium deficiency is greater than the unamortized deferred policy acquisition costs, a liability is accrued for the excess deficiency. The Company did not record a premium deficiency for the years ended December 31, 2016, 2015 or 2014. Certain commercial lines of business written by the property and casualty insurance subsidiaries, including workers’ compensation, are eligible for policyholder dividends in accordance with provisions of the underlying insurance policies. Net premiums written subject to policyholder dividends represented approximately 22 percent of the property and casualty insurance subsidiaries’ total net commercial line premiums written in 2016. Policyholder dividends are accrued over the terms of the underlying policy periods. Liabilities for losses reflect losses incurred through the balance sheet date and are based upon the estimated ultimate loss ratios established by line of business and accident year, and estimates of losses expected under assumed reinsurance contracts. Liabilities for settlement expenses are provided by estimating expenses expected to be incurred in settling the claims provided for in the loss reserves. Changes in reserves estimates are reflected in net income in the year such changes are recorded (see note 4). Ceded reinsurance amounts with nonaffiliated reinsurers relating to reinsurance receivables for unpaid losses and settlement expenses and prepaid reinsurance premiums are reported on the balance sheet on a gross basis. Amounts ceded to Employers Mutual under the affiliated reinsurance pooling agreement and the inter-company reinsurance programs (see note 2) have not been grossed up because the contracts provide that receivables and payables may be offset upon settlement. Based on current information, the liabilities for losses and settlement expenses are considered to be adequate. Since the provisions are necessarily based on estimates, the ultimate liabilities may be more or less than such provisions.
Investments	Investments Currently, all securities are classified as available-for-sale and are carried at fair value, with unrealized holding gains and losses reported as a component of accumulated other comprehensive income in stockholders’ equity, net of deferred income taxes. Other long-term investments consist of holdings in limited partnerships that are carried under the equity method of accounting, and holdings in limited partnerships and limited liability companies that are carried at amortized cost. The Company has an investment in a limited partnership that is designed to help protect the Company from a sudden and significant decline in the value of its equity portfolio. This limited partnership is carried under the equity method of accounting. Because of the nature of this investment, which is used solely to support the equity tail-risk hedging strategy, changes in the carrying value of the limited partnership are recorded as realized investment gains (losses), rather than as a component of investment income. Short-term investments generally include money market funds, U.S. Treasury bills and commercial paper that are carried at fair value, which approximates cost. The Company participates in a reverse repurchase arrangement involving the purchase of investment securities from third-party sellers, with the agreement that the purchased securities be sold back to the third-party sellers for agreed-upon prices at specified future dates. The third-party sellers are required to pledge collateral with a value greater than the amount of cash received in the transactions. In accordance with GAAP, the investment securities purchased under the reverse repurchase agreements are not reflected in the Company's consolidated balance sheets, but instead a receivable is recorded for the principal amount lent. Net proceeds/disbursements related to the reverse repurchase transactions are reported as a component of investing activities in the consolidated statements of cash flows, and the income as a component of operating activities. The Company uses independent pricing sources to obtain the estimated fair value of securities. The fair value is based on quoted market prices, where available. In cases where quoted market prices are not available, fair values are based on a variety of valuation techniques depending on the type of investment. The fair values obtained from independent pricing sources are reviewed for reasonableness and any discrepancies are investigated for final valuation (see note 8). The Company uses a practical expedient to measure the pooled separate account investments in Employers Mutual's qualified pension plan at the net asset value per share (see note 12). Premiums and discounts on fixed maturity securities are amortized over the life of the security as an adjustment to yield using the effective interest method. Amortization of premiums and discounts on mortgage-backed securities incorporates prepayment assumptions to estimate expected lives. Gains and losses realized on the disposition of investments are included in net income. The cost of investments sold is determined on the specific identification method using the highest cost basis first. Included in investments at December 31, 2016 and 2015 are securities on deposit with various regulatory authorities as required by law amounting to $11.0 million and $11.2 million, respectively. The Company regularly monitors its investment portfolio for securities whose fair value is less than the carrying value for indications of “other-than-temporary” impairment. Several factors are used to determine whether the carrying value of an individual security has been “other-than-temporarily” impaired. Such factors include, but are not limited to (1) the security’s value and performance in the context of the overall markets, (2) length of time and extent the security’s fair value has been below carrying value, (3) key corporate events, (4) for fixed maturity securities, the amount of collateral available, and (5) for equity securities, the ability and intent to hold the security until recovery to its cost basis. When an equity security is deemed to be “other-than-temporarily” impaired, the carrying value is reduced to fair value and a realized loss is recognized and charged to income. For fixed maturity securities, if the present value of cash flows expected to be collected is less than the amortized cost of the security, a credit loss is deemed to exist and the security is considered “other-than-temporarily” impaired. The portion of the impairment related to a credit loss is recognized through earnings, and the portion of the impairment related to other factors, if any, is recognized through “other comprehensive income”. Alternatively, if the Company has the intent to sell a fixed maturity security that is in an unrealized loss position, or determines that it will "more likely than not" be required to sell a fixed maturity security that is in an unrealized loss position before recovery of its amortized cost basis, then the carrying value is reduced to fair value and the entire amount of the impairment is recognized through earnings.
Income Taxes	Income Taxes The Company files a consolidated Federal income tax return with its subsidiaries. Consolidated income taxes/benefits are allocated among the entities based upon separate tax liabilities. Deferred income taxes are provided for temporary differences between the tax basis of assets and liabilities and the reported amounts of those assets and liabilities for financial reporting purposes. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. Income tax expense provisions increase or decrease in the same period in which a change in tax rates is enacted. A valuation allowance is established to reduce deferred tax assets to their net realizable value if it is “more likely than not” that a tax benefit will not be realized. An assessment of the Company’s current tax positions indicated no uncertainties that would warrant different recognition and valuation from that applied in the Company’s tax returns.
Stock-Based Compensation	Stock-Based Compensation The Company has no stock-based compensation plans of its own; however, Employers Mutual has several stock plans that utilize the common stock of the Company. The Company receives the current fair value for all shares issued under these plans. A portion of the compensation expense recognized by Employers Mutual (as the requisite service period for granted options and restricted stock awards is rendered) is allocated to the Company’s property and casualty insurance subsidiaries though their participation in the pooling agreement (see note 2). Because a portion of Employers Mutual’s stock compensation expense is reflected in the Company’s financial statements and issuances of the Company’s stock under Employers Mutual’s stock plans have an impact on the Company’s capital accounts, the disclosures required by the Compensation – Stock Compensation Topic 718 of the Financial Accounting Standards Board (FASB) Accounting Standards Codification^TM (Codification or ASC) are included in the Company’s consolidated financial statements.
Employee Retirement Plans	Employee Retirement Plans Employers Mutual has various employee benefit plans, including two defined benefit pension plans, and two postretirement benefit plans that provide retiree healthcare and life insurance benefits. Although the Company has no employees of its own, it is responsible for its share of the plans' expenses and related prepaid assets and liabilities (the "funded status") as determined under the terms of the pooling agreement. Accordingly, the Company recognizes its share of the funded status of Employers Mutual’s pension and postretirement benefit plans on its balance sheet, with changes in the funded status of the plans recognized through “other comprehensive income.” In addition,the Company is responsible for its share of costs of these plans allocated by Employers Mutual to subsidiaries that do not participate in the pooling agreement (see note 2). During 2016, Employers Mutual's management determined that an allocation of the plans' funded status to the Company's reinsurance subsidiary would no longer be made because the amounts were immaterial and significant time and cost was needed to determine the allocation. As a result, the assets and liabilities allocated to the reinsurance subsidiary as of December 31, 2015 were settled with Employers Mutual during 2016.
Accounts Receivable	Accounts Receivable The accounts receivable balance consists of assumed reinsurance premiums receivable (net of any commissions) on business written directly by the reinsurance subsidiary, and commission income receivable on excess and surplus lines business marketed by EMC Underwriters, LLC. These receivables are carried at their initial recognition amounts. It is the Company’s policy to reflect the impairment of receivables through a valuation allowance until ultimately collected or charged-off. No valuation allowance is currently carried, as no amounts are deemed impaired. No interest income, other fees, or deferred costs related to these receivables are assessed or recognized.
Off-Balance-Sheet Credit Exposure	Off-Balance-Sheet Credit Exposure Employers Mutual collects from agents, policyholders and ceding companies all written premiums associated with the insurance business produced by the pool participants and the assumed reinsurance business ceded to the reinsurance subsidiary. Employers Mutual also collects from its reinsurers all losses and settlement expenses recoverable under the reinsurance contracts protecting the pool participants and, starting in 2016, the additional reinsurance protection (see note 2) protecting the reinsurance subsidiary, as well as the fronting business ceded to the reinsurance subsidiary. Employers Mutual settles with the pool participants (monthly) and the reinsurance subsidiary (quarterly) the premiums written from these insurance policies and the paid losses and settlement expenses recoverable under the external reinsurance contracts, providing full credit for the premiums written and the paid losses and settlement expenses recoverable under the external reinsurance contracts generated during the period (not just the collected portion). Due to this arrangement, and since a significant portion of the premium balances are collected over the course of the underlying coverage periods, Employers Mutual carries a substantial receivable balance for insurance and reinsurance premiums in process of collection and, to a lesser extent, paid losses and settlement expenses recoverable from the external reinsurance companies. Any of these receivable amounts that are ultimately deemed to be uncollectible are charged-off by Employers Mutual and the expense is charged to the reinsurance subsidiary or allocated to the pool members on the basis of pool participation. As a result, the Company has off-balance sheet arrangements with an unconsolidated entity that results in credit-risk exposures (Employers Mutual’s insurance and reinsurance premium receivable balances, and paid loss and settlement expense recoverable amounts) that are not reflected in the Company’s financial statements. The average annual expense for such charge-offs allocated to the Company over the past ten years is $362,000. Based on this historical data, this credit-risk exposure is not considered to be material to the Company’s results of operations or financial position and, accordingly, no loss contingency liability has been recorded.
Foreign Currency Transactions	Foreign Currency Transactions Included in the underlying reinsurance business assumed by the reinsurance subsidiary are reinsurance transactions conducted with foreign cedants denominated in their local functional currencies. In accordance with the terms of the quota share agreement (see note 2), the reinsurance subsidiary assumes all foreign currency exchange gains/losses associated with contracts incepting on January 1, 2006 and thereafter that are subject to the quota share agreement. The reinsurance subsidiary also has foreign currency exchange gains/losses associated with the business assumed outside the quota share agreement. The assets and liabilities resulting from these foreign reinsurance transactions are reported in U.S. dollars based on the foreign currency exchange rates that existed at the balance sheet dates. The foreign currency exchange rate gains/losses reported in the consolidated statements of income that resulted from these foreign reinsurance transactions are reported in U.S. dollars re-measured from the foreign currency exchange rates that existed at the inception of each reinsurance contract. The foreign currency exchange rate gains/losses resulting from these re-measurements to U.S. dollars are reported as a component of other income in the consolidated statements of income.
Net Income (Loss) Per Share - Basic and Diluted	Net Income Per Share - Basic and Diluted The Company’s basic and diluted net income per share is computed by dividing net income by the weighted average number of common shares outstanding during each period. As previously noted, the Company receives the current fair value for all shares issued under Employers Mutual’s stock plans. As a result, the Company had no potential common shares outstanding during 2016, 2015 or 2014 that would have been dilutive to the calculation of net income per share.
Goodwill	Goodwill Goodwill represents the excess of cost over the fair value of net assets of acquired subsidiaries. Goodwill is not amortized, but is instead subject to impairment if the carrying value of the goodwill exceeds the estimated fair value of net assets. If the carrying amount of the reporting unit (including goodwill) exceeds the computed fair value, an impairment loss is recognized through the income statement equal to the excess amount, but not greater than the balance of the goodwill. Goodwill was not deemed to be impaired in 2016, 2015 or 2014.
New Accounting Pronouncements Adopted	Accounting Pronouncements Adopted In February 2015, the FASB updated its guidance related to the Consolidation Topic 810 of the (ASC). The objective of this update is to improve consolidation guidance through changes in the analysis that a reporting entity must perform to determine whether it should consolidate certain types of legal entities. The guidance modifies the evaluation of whether limited partnerships and similar legal entities are variable interest entities or voting interest entities, while also eliminating the presumption that a general partner should consolidate a limited partnership. This guidance was effective for interim and annual periods beginning after December 15, 2015, and was to be applied either retrospectively or through a modified retrospective approach by recording a cumulative-effect adjustment to equity as of the beginning of the fiscal year of adoption. The Company adopted this guidance in the first quarter of 2016. Adoption of this guidance did not have an impact on the consolidated financial condition or operating results of the Company. In May 2015, the FASB updated its guidance related to the Financial Services-Insurance Topic 944 of the ASC. The objective of this update is to add disclosures which provide transparency of significant estimates made in measuring the liability for losses and settlement expenses, thus providing more insight into an insurance entity's ability to underwrite and anticipate costs associated with claims. The new disclosures primarily include incurred and paid claims development tables prepared net of reinsurance (not to exceed ten years), and a reconciliation of the carrying amount of the liability for losses and settlement expenses. Also included (for each accident year of incurred claims development disclosed), is disclosure of incurred but not reported (IBNR) loss reserves, claim frequency information, and the average annual percentage payout of incurred claims by age. This guidance is applied to annual reporting periods beginning after December 15, 2015, and certain disclosures to interim reporting periods beginning after December 15, 2016. The Company adopted this guidance during the fourth quarter of 2016 (see note 4). Since the guidance only affects disclosure, adoption had no impact on the consolidated financial condition or operating results of the Company. In August 2014, the FASB updated its guidance related to the Presentation of Financial Statements - Going Concern Subtopic 205-40 of the ASC. The objective of this update is to provide guidance regarding management’s responsibility to evaluate whether there is substantial doubt about an entity’s ability to continue as a going concern, and to provide related footnote disclosures if indeed substantial doubts do exist. This guidance is effective for annual periods ending after December 15, 2016, and for interim and annual reporting periods thereafter. The Company adopted this guidance in the fourth quarter of 2016. Management completed an evaluation and determined no disclosures were necessary. In March 2016, the FASB updated its guidance related to Stock Compensation Topic 718 of the ASC. The objective of this update is to simplify the accounting for employee share-based payments. The provisions applicable to the Company primarily involve the accounting treatment for excess tax benefits, which is the excess of the actual tax benefit realized by the Company upon the exercise of non-qualified stock options (by Employers Mutual's employees) over the deferred income tax benefit previously recognized in conjunction with the compensation expense (tax deficiency if the actual tax benefit realized is less than the previously recognized deferred income tax benefit). The FASB permitted early prospective adoption of these provisions, and the Company elected to adopt effective January 1, 2016. As a result, effective January 1, 2016, the Company no longer records to additional paid-in capital the excess tax benefits (deficiencies) allocated to it through the pooling agreement, but instead recognizes these amounts through the consolidated statements of income as components of current and deferred income taxes. The requirement that these excess tax benefits (deficiencies) be reflected as financing cash flows in the consolidated statements of cash flows was also removed, and these amounts are now reflected as cash flows from operating activities on a prospective basis.
New Accounting Pronouncements Not Yet Adopted	New Accounting Pronouncements Not Yet Adopted In May 2014, the FASB updated its guidance related to the Revenue from Contracts with Customers Topic 606 of the ASC. The objective of this update (and other related following updates) is to improve the reporting of revenue by providing a more robust framework for addressing revenue issues, and improved disclosure requirements. Current revenue recognition guidance in U.S. GAAP is comprised of broad revenue recognition concepts together with numerous revenue requirements for particular industries or transactions, which sometimes result in different accounting for economically similar transactions. This guidance is to be applied retrospectively to annual and interim reporting periods beginning after December 15, 2017, with early adoption permitted as of the original effective date (annual and interim reporting periods beginning after December 15, 2016). The Company will adopt this guidance during the first quarter of 2018. Since premium revenue from insurance contracts is excluded from the scope of this updated guidance, adoption is expected to have little or no impact on the consolidated financial condition or operating results of the Company. The Company's largest non-premium revenue items are service charges related to the billing of the pool participants' direct written premiums to policyholders, and commission income on excess and surplus lines business marketed by EMC Underwriters, LLC, both of which are included in "Other income" in the consolidated statements of income. In January 2016, the FASB updated its guidance related to the Financial Instruments-Overall Subtopic 825-10 of the ASC. The objective of this update is to enhance the reporting model for financial instruments to provide financial statement users with more decision-useful information. The major change in reporting from this update that will impact the Company is a requirement that equity investments (excluding those accounted for under the equity method of accounting or those that are consolidated) be measured at fair value, with changes in fair value recognized in net income. While all of the Company's equity investments are already measured at fair value (with the exception of those that are consolidated and those that are accounted for under the equity method of accounting), the Company currently classifies all of its investments in equity securities as available-for-sale, and as such, the changes in fair value are currently recognized in other comprehensive income rather than net income. This guidance is to be applied to annual and interim reporting periods beginning after December 15, 2017, with recognition of a cumulative-effect adjustment to the balance sheet as of the beginning of the fiscal year of adoption. Early adoption is not permitted. The Company will adopt this guidance during the first quarter of 2018. Adoption is not expected to impact consolidated stockholders' equity, but is expected to introduce a material amount of volatility to the Company's operating results. In February 2016, the FASB issued updated guidance in Leases Topic 842 of the ASC, which supersedes the guidance in Leases Topic 840 of the ASC. The objective of this update is to increase transparency and comparability among organizations by requiring recognition of lease assets and lease liabilities on the balance sheet, and disclosure of key information about leasing arrangements. This guidance is effective for interim and annual periods beginning after December 15, 2018, and is to be applied using a modified retrospective approach. Early adoption is permitted. The Company will adopt this guidance during the first quarter of 2019. Management continues to research this guidance, which thus far has lead management to a preliminary determination that this update will not have a material impact to the Company's consolidated financial condition or operating results. In June 2016, the FASB issued updated guidance in Financial Instruments-Credit Losses Topic 326 of the ASC. The objective of this update is to provide information about expected credit losses on financial instruments and other commitments to extend credit. Specifically, this updated guidance replaces the current incurred loss impairment methodology, which delays recognition of a loss until it is probable a loss has been incurred, with a methodology that reflects expected credit losses considering a broader range of reasonable and supportable information. This guidance covers financial assets that are not accounted for at fair value through net income, thus will not be applicable to the Company's equity investments upon implementation of the updated guidance described above for the Financial Instruments-Overall Subtopic 825-10. This guidance is effective for interim and annual periods beginning after December 15, 2019, and is to be applied with a cumulative-effect adjustment to retained earnings as of the beginning of the first reporting period in which the guidance is effective (modified-retrospective approach). Early adoption is permitted, but only to fiscal years beginning after December 15, 2018. The Company will adopt this guidance during the first quarter of 2020. The Company is currently evaluating the impact this guidance will have on the Company's consolidated financial condition and operating results.

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)

12 Months Ended

Dec. 31, 2016

Description of Business

EMC Insurance Group Inc., a majority owned subsidiary of Employers Mutual Casualty Company (Employers Mutual), is an insurance holding company with operations in property and casualty insurance and reinsurance. The Company conducts its property and casualty insurance operations through the following subsidiaries: EMCASCO Insurance Company, Illinois EMCASCO Insurance Company and Dakota Fire Insurance Company, and its reinsurance operations through its subsidiary, EMC Reinsurance Company. The Company also has an excess and surplus lines insurance agency subsidiary, EMC Underwriters, LLC. The term “Company” is used interchangeably to describe EMC Insurance Group Inc. (Parent Company only) and EMC Insurance Group Inc. and its subsidiaries.

The Company writes property and casualty insurance in both commercial and personal lines of insurance, with a focus on medium-sized commercial accounts. Approximately 37 percent of the premiums written are in Iowa and contiguous states. The Company’s reinsurance business is primarily written through a quota share reinsurance agreement with Employers Mutual. A small portion of the assumed reinsurance business is written on a direct basis, outside the quota share reinsurance agreement.

Principles of Consolidation and Basis of Presentation

The consolidated financial statements have been prepared on the basis of U.S. generally accepted accounting principles (GAAP), which differ in some respects from those followed in reports to insurance regulatory authorities. All significant inter-company balances and transactions have been eliminated.

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements, as well as the reported amounts of revenues and expenses during the reporting periods. Actual results could differ from those estimates. The Company has evaluated all subsequent events through the date the financial statements were issued.

Property and Casualty Insurance and Reinsurance Operations

Premiums written is the amount charged for policies issued during a reporting period. Property and casualty insurance premiums are recognized as revenue ratably over the terms of the respective policies. Unearned premiums are calculated on the daily pro rata method. Both domestic and foreign assumed reinsurance premiums are recognized as revenues ratably over the terms of the related contracts and underlying policies. Amounts paid as ceded reinsurance premiums are reported as prepaid reinsurance premiums and are amortized over the remaining contract period in proportion to the amount of reinsurance protection provided. Reinsurance reinstatement premiums are recognized in the same period as the loss event that gave rise to the reinstatement premiums.

Costs related to the acquisition of insurance contracts are deferred and amortized to expense as the associated premium revenue is recognized. Only incremental costs or costs directly related to the successful acquisition of new or renewal insurance contracts are capitalized. Accordingly, acquisition costs consist of commissions, premium taxes, and salary and benefit expenses of employees directly involved in the underwriting of insurance policies that are successfully issued.

The method followed in computing deferred policy acquisition costs limits the amount of such deferred costs to the estimated realizable value. In determining estimated realizable value, the computation gives effect to the premium to be earned, related investment income, anticipated losses and settlement expenses, anticipated policyholder dividends, and certain other costs expected to be incurred to administer the insurance policies as the premium is earned. The anticipated losses and settlement expenses are not discounted and are based on the Company’s projected loss and settlement expense ratios for the next twelve months, which include catastrophe loads based on historical results adjusted for recent trends. The occurrence of a significant catastrophic event, and/or the accumulation of catastrophe losses would not have a direct impact on the determination of premium deficiencies; however, such occurrences would be included in the historical results that are used to establish the catastrophe loads. A premium deficiency is first recognized by expensing the amount of unamortized deferred policy acquisition costs necessary to eliminate the deficiency. If the premium deficiency is greater than the unamortized deferred policy acquisition costs, a liability is accrued for the excess deficiency. The Company did not record a premium deficiency for the years ended December 31, 2016, 2015 or 2014.

Certain commercial lines of business written by the property and casualty insurance subsidiaries, including workers’ compensation, are eligible for policyholder dividends in accordance with provisions of the underlying insurance policies. Net premiums written subject to policyholder dividends represented approximately 22 percent of the property and casualty insurance subsidiaries’ total net commercial line premiums written in 2016. Policyholder dividends are accrued over the terms of the underlying policy periods.

Liabilities for losses reflect losses incurred through the balance sheet date and are based upon the estimated ultimate loss ratios established by line of business and accident year, and estimates of losses expected under assumed reinsurance contracts. Liabilities for settlement expenses are provided by estimating expenses expected to be incurred in settling the claims provided for in the loss reserves. Changes in reserves estimates are reflected in net income in the year such changes are recorded (see note 4).

Ceded reinsurance amounts with nonaffiliated reinsurers relating to reinsurance receivables for unpaid losses and settlement expenses and prepaid reinsurance premiums are reported on the balance sheet on a gross basis. Amounts ceded to Employers Mutual under the affiliated reinsurance pooling agreement and the inter-company reinsurance programs (see note 2) have not been grossed up because the contracts provide that receivables and payables may be offset upon settlement.

Based on current information, the liabilities for losses and settlement expenses are considered to be adequate. Since the provisions are necessarily based on estimates, the ultimate liabilities may be more or less than such provisions.

Investments

Currently, all securities are classified as available-for-sale and are carried at fair value, with unrealized holding gains and losses reported as a component of accumulated other comprehensive income in stockholders’ equity, net of deferred income taxes. Other long-term investments consist of holdings in limited partnerships that are carried under the equity method of accounting, and holdings in limited partnerships and limited liability companies that are carried at amortized cost. The Company has an investment in a limited partnership that is designed to help protect the Company from a sudden and significant decline in the value of its equity portfolio. This limited partnership is carried under the equity method of accounting. Because of the nature of this investment, which is used solely to support the equity tail-risk hedging strategy, changes in the carrying value of the limited partnership are recorded as realized investment gains (losses), rather than as a component of investment income. Short-term investments generally include money market funds, U.S. Treasury bills and commercial paper that are carried at fair value, which approximates cost.

The Company participates in a reverse repurchase arrangement involving the purchase of investment securities from third-party sellers, with the agreement that the purchased securities be sold back to the third-party sellers for agreed-upon prices at specified future dates. The third-party sellers are required to pledge collateral with a value greater than the amount of cash received in the transactions. In accordance with GAAP, the investment securities purchased under the reverse repurchase agreements are not reflected in the Company's consolidated balance sheets, but instead a receivable is recorded for the principal amount lent. Net proceeds/disbursements related to the reverse repurchase transactions are reported as a component of investing activities in the consolidated statements of cash flows, and the income as a component of operating activities.

The Company uses independent pricing sources to obtain the estimated fair value of securities. The fair value is based on quoted market prices, where available. In cases where quoted market prices are not available, fair values are based on a variety of valuation techniques depending on the type of investment. The fair values obtained from independent pricing sources are reviewed for reasonableness and any discrepancies are investigated for final valuation (see note 8). The Company uses a practical expedient to measure the pooled separate account investments in Employers Mutual's qualified pension plan at the net asset value per share (see note 12).

Premiums and discounts on fixed maturity securities are amortized over the life of the security as an adjustment to yield using the effective interest method. Amortization of premiums and discounts on mortgage-backed securities incorporates prepayment assumptions to estimate expected lives. Gains and losses realized on the disposition of investments are included in net income. The cost of investments sold is determined on the specific identification method using the highest cost basis first. Included in investments at December 31, 2016 and 2015 are securities on deposit with various regulatory authorities as required by law amounting to $11.0 million and $11.2 million, respectively.

The Company regularly monitors its investment portfolio for securities whose fair value is less than the carrying value for indications of “other-than-temporary” impairment. Several factors are used to determine whether the carrying value of an individual security has been “other-than-temporarily” impaired. Such factors include, but are not limited to (1) the security’s value and performance in the context of the overall markets, (2) length of time and extent the security’s fair value has been below carrying value, (3) key corporate events, (4) for fixed maturity securities, the amount of collateral available, and (5) for equity securities, the ability and intent to hold the security until recovery to its cost basis. When an equity security is deemed to be “other-than-temporarily” impaired, the carrying value is reduced to fair value and a realized loss is recognized and charged to income. For fixed maturity securities, if the present value of cash flows expected to be collected is less than the amortized cost of the security, a credit loss is deemed to exist and the security is considered “other-than-temporarily” impaired. The portion of the impairment related to a credit loss is recognized through earnings, and the portion of the impairment related to other factors, if any, is recognized through “other comprehensive income”. Alternatively, if the Company has the intent to sell a fixed maturity security that is in an unrealized loss position, or determines that it will "more likely than not" be required to sell a fixed maturity security that is in an unrealized loss position before recovery of its amortized cost basis, then the carrying value is reduced to fair value and the entire amount of the impairment is recognized through earnings.

Income Taxes

The Company files a consolidated Federal income tax return with its subsidiaries. Consolidated income taxes/benefits are allocated among the entities based upon separate tax liabilities.

Deferred income taxes are provided for temporary differences between the tax basis of assets and liabilities and the reported amounts of those assets and liabilities for financial reporting purposes. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. Income tax expense provisions increase or decrease in the same period in which a change in tax rates is enacted. A valuation allowance is established to reduce deferred tax assets to their net realizable value if it is “more likely than not” that a tax benefit will not be realized.

An assessment of the Company’s current tax positions indicated no uncertainties that would warrant different recognition and valuation from that applied in the Company’s tax returns.

Stock-Based Compensation

The Company has no stock-based compensation plans of its own; however, Employers Mutual has several stock plans that utilize the common stock of the Company. The Company receives the current fair value for all shares issued under these plans. A portion of the compensation expense recognized by Employers Mutual (as the requisite service period for granted options and restricted stock awards is rendered) is allocated to the Company’s property and casualty insurance subsidiaries though their participation in the pooling agreement (see note 2). Because a portion of Employers Mutual’s stock compensation expense is reflected in the Company’s financial statements and issuances of the Company’s stock under Employers Mutual’s stock plans have an impact on the Company’s capital accounts, the disclosures required by the Compensation – Stock Compensation Topic 718 of the Financial Accounting Standards Board (FASB) Accounting Standards Codification^TM (Codification or ASC) are included in the Company’s consolidated financial statements.

Employee Retirement Plans

Employers Mutual has various employee benefit plans, including two defined benefit pension plans, and two postretirement benefit plans that provide retiree healthcare and life insurance benefits. Although the Company has no employees of its own, it is responsible for its share of the plans' expenses and related prepaid assets and liabilities (the "funded status") as determined under the terms of the pooling agreement. Accordingly, the Company recognizes its share of the funded status of Employers Mutual’s pension and postretirement benefit plans on its balance sheet, with changes in the funded status of the plans recognized through “other comprehensive income.” In addition,the Company is responsible for its share of costs of these plans allocated by Employers Mutual to subsidiaries that do not participate in the pooling agreement (see note 2). During 2016, Employers Mutual's management determined that an allocation of the plans' funded status to the Company's reinsurance subsidiary would no longer be made because the amounts were immaterial and significant time and cost was needed to determine the allocation. As a result, the assets and liabilities allocated to the reinsurance subsidiary as of December 31, 2015 were settled with Employers Mutual during 2016.

Accounts Receivable

The accounts receivable balance consists of assumed reinsurance premiums receivable (net of any commissions) on business written directly by the reinsurance subsidiary, and commission income receivable on excess and surplus lines business marketed by EMC Underwriters, LLC. These receivables are carried at their initial recognition amounts. It is the Company’s policy to reflect the impairment of receivables through a valuation allowance until ultimately collected or charged-off. No valuation allowance is currently carried, as no amounts are deemed impaired. No interest income, other fees, or deferred costs related to these receivables are assessed or recognized.

Off-Balance-Sheet Credit Exposure

Employers Mutual collects from agents, policyholders and ceding companies all written premiums associated with the insurance business produced by the pool participants and the assumed reinsurance business ceded to the reinsurance subsidiary. Employers Mutual also collects from its reinsurers all losses and settlement expenses recoverable under the reinsurance contracts protecting the pool participants and, starting in 2016, the additional reinsurance protection (see note 2) protecting the reinsurance subsidiary, as well as the fronting business ceded to the reinsurance subsidiary. Employers Mutual settles with the pool participants (monthly) and the reinsurance subsidiary (quarterly) the premiums written from these insurance policies and the paid losses and settlement expenses recoverable under the external reinsurance contracts, providing full credit for the premiums written and the paid losses and settlement expenses recoverable under the external reinsurance contracts generated during the period (not just the collected portion). Due to this arrangement, and since a significant portion of the premium balances are collected over the course of the underlying coverage periods, Employers Mutual carries a substantial receivable balance for insurance and reinsurance premiums in process of collection and, to a lesser extent, paid losses and settlement expenses recoverable from the external reinsurance companies. Any of these receivable amounts that are ultimately deemed to be uncollectible are charged-off by Employers Mutual and the expense is charged to the reinsurance subsidiary or allocated to the pool members on the basis of pool participation. As a result, the Company has off-balance sheet arrangements with an unconsolidated entity that results in credit-risk exposures (Employers Mutual’s insurance and reinsurance premium receivable balances, and paid loss and settlement expense recoverable amounts) that are not reflected in the Company’s financial statements. The average annual expense for such charge-offs allocated to the Company over the past ten years is $362,000. Based on this historical data, this credit-risk exposure is not considered to be material to the Company’s results of operations or financial position and, accordingly, no loss contingency liability has been recorded.

Foreign Currency Transactions

Included in the underlying reinsurance business assumed by the reinsurance subsidiary are reinsurance transactions conducted with foreign cedants denominated in their local functional currencies. In accordance with the terms of the quota share agreement (see note 2), the reinsurance subsidiary assumes all foreign currency exchange gains/losses associated with contracts incepting on January 1, 2006 and thereafter that are subject to the quota share agreement. The reinsurance subsidiary also has foreign currency exchange gains/losses associated with the business assumed outside the quota share agreement. The assets and liabilities resulting from these foreign reinsurance transactions are reported in U.S. dollars based on the foreign currency exchange rates that existed at the balance sheet dates. The foreign currency exchange rate gains/losses reported in the consolidated statements of income that resulted from these foreign reinsurance transactions are reported in U.S. dollars re-measured from the foreign currency exchange rates that existed at the inception of each reinsurance contract. The foreign currency exchange rate gains/losses resulting from these re-measurements to U.S. dollars are reported as a component of other income in the consolidated statements of income.

Net Income (Loss) Per Share - Basic and Diluted

Net Income Per Share - Basic and Diluted

The Company’s basic and diluted net income per share is computed by dividing net income by the weighted average number of common shares outstanding during each period. As previously noted, the Company receives the current fair value for all shares issued under Employers Mutual’s stock plans. As a result, the Company had no potential common shares outstanding during 2016, 2015 or 2014 that would have been dilutive to the calculation of net income per share.

Goodwill

Goodwill represents the excess of cost over the fair value of net assets of acquired subsidiaries. Goodwill is not amortized, but is instead subject to impairment if the carrying value of the goodwill exceeds the estimated fair value of net assets. If the carrying amount of the reporting unit (including goodwill) exceeds the computed fair value, an impairment loss is recognized through the income statement equal to the excess amount, but not greater than the balance of the goodwill. Goodwill was not deemed to be impaired in 2016, 2015 or 2014.

New Accounting Pronouncements Adopted

Accounting Pronouncements Adopted

In February 2015, the FASB updated its guidance related to the Consolidation Topic 810 of the (ASC). The objective of this update is to improve consolidation guidance through changes in the analysis that a reporting entity must perform to determine whether it should consolidate certain types of legal entities. The guidance modifies the evaluation of whether limited partnerships and similar legal entities are variable interest entities or voting interest entities, while also eliminating the presumption that a general partner should consolidate a limited partnership. This guidance was effective for interim and annual periods beginning after December 15, 2015, and was to be applied either retrospectively or through a modified retrospective approach by recording a cumulative-effect adjustment to equity as of the beginning of the fiscal year of adoption. The Company adopted this guidance in the first quarter of 2016. Adoption of this guidance did not have an impact on the consolidated financial condition or operating results of the Company.

In May 2015, the FASB updated its guidance related to the Financial Services-Insurance Topic 944 of the ASC. The objective of this update is to add disclosures which provide transparency of significant estimates made in measuring the liability for losses and settlement expenses, thus providing more insight into an insurance entity's ability to underwrite and anticipate costs associated with claims. The new disclosures primarily include incurred and paid claims development tables prepared net of reinsurance (not to exceed ten years), and a reconciliation of the carrying amount of the liability for losses and settlement expenses. Also included (for each accident year of incurred claims development disclosed), is disclosure of incurred but not reported (IBNR) loss reserves, claim frequency information, and the average annual percentage payout of incurred claims by age. This guidance is applied to annual reporting periods beginning after December 15, 2015, and certain disclosures to interim reporting periods beginning after December 15, 2016. The Company adopted this guidance during the fourth quarter of 2016 (see note 4). Since the guidance only affects disclosure, adoption had no impact on the consolidated financial condition or operating results of the Company.

In August 2014, the FASB updated its guidance related to the Presentation of Financial Statements - Going Concern Subtopic 205-40 of the ASC. The objective of this update is to provide guidance regarding management’s responsibility to evaluate whether there is substantial doubt about an entity’s ability to continue as a going concern, and to provide related footnote disclosures if indeed substantial doubts do exist. This guidance is effective for annual periods ending after December 15, 2016, and for interim and annual reporting periods thereafter. The Company adopted this guidance in the fourth quarter of 2016. Management completed an evaluation and determined no disclosures were necessary.

In March 2016, the FASB updated its guidance related to Stock Compensation Topic 718 of the ASC. The objective of this update is to simplify the accounting for employee share-based payments. The provisions applicable to the Company primarily involve the accounting treatment for excess tax benefits, which is the excess of the actual tax benefit realized by the Company upon the exercise of non-qualified stock options (by Employers Mutual's employees) over the deferred income tax benefit previously recognized in conjunction with the compensation expense (tax deficiency if the actual tax benefit realized is less than the previously recognized deferred income tax benefit). The FASB permitted early prospective adoption of these provisions, and the Company elected to adopt effective January 1, 2016. As a result, effective January 1, 2016, the Company no longer records to additional paid-in capital the excess tax benefits (deficiencies) allocated to it through the pooling agreement, but instead recognizes these amounts through the consolidated statements of income as components of current and deferred income taxes. The requirement that these excess tax benefits (deficiencies) be reflected as financing cash flows in the consolidated statements of cash flows was also removed, and these amounts are now reflected as cash flows from operating activities on a prospective basis.

New Accounting Pronouncements Not Yet Adopted

In May 2014, the FASB updated its guidance related to the Revenue from Contracts with Customers Topic 606 of the ASC. The objective of this update (and other related following updates) is to improve the reporting of revenue by providing a more robust framework for addressing revenue issues, and improved disclosure requirements. Current revenue recognition guidance in U.S. GAAP is comprised of broad revenue recognition concepts together with numerous revenue requirements for particular industries or transactions, which sometimes result in different accounting for economically similar transactions. This guidance is to be applied retrospectively to annual and interim reporting periods beginning after December 15, 2017, with early adoption permitted as of the original effective date (annual and interim reporting periods beginning after December 15, 2016). The Company will adopt this guidance during the first quarter of 2018. Since premium revenue from insurance contracts is excluded from the scope of this updated guidance, adoption is expected to have little or no impact on the consolidated financial condition or operating results of the Company. The Company's largest non-premium revenue items are service charges related to the billing of the pool participants' direct written premiums to policyholders, and commission income on excess and surplus lines business marketed by EMC Underwriters, LLC, both of which are included in "Other income" in the consolidated statements of income.

In January 2016, the FASB updated its guidance related to the Financial Instruments-Overall Subtopic 825-10 of the ASC. The objective of this update is to enhance the reporting model for financial instruments to provide financial statement users with more decision-useful information. The major change in reporting from this update that will impact the Company is a requirement that equity investments (excluding those accounted for under the equity method of accounting or those that are consolidated) be measured at fair value, with changes in fair value recognized in net income. While all of the Company's equity investments are already measured at fair value (with the exception of those that are consolidated and those that are accounted for under the equity method of accounting), the Company currently classifies all of its investments in equity securities as available-for-sale, and as such, the changes in fair value are currently recognized in other comprehensive income rather than net income. This guidance is to be applied to annual and interim reporting periods beginning after December 15, 2017, with recognition of a cumulative-effect adjustment to the balance sheet as of the beginning of the fiscal year of adoption. Early adoption is not permitted. The Company will adopt this guidance during the first quarter of 2018. Adoption is not expected to impact consolidated stockholders' equity, but is expected to introduce a material amount of volatility to the Company's operating results.

In February 2016, the FASB issued updated guidance in Leases Topic 842 of the ASC, which supersedes the guidance in Leases Topic 840 of the ASC. The objective of this update is to increase transparency and comparability among organizations by requiring recognition of lease assets and lease liabilities on the balance sheet, and disclosure of key information about leasing arrangements. This guidance is effective for interim and annual periods beginning after December 15, 2018, and is to be applied using a modified retrospective approach. Early adoption is permitted. The Company will adopt this guidance during the first quarter of 2019. Management continues to research this guidance, which thus far has lead management to a preliminary determination that this update will not have a material impact to the Company's consolidated financial condition or operating results.

In June 2016, the FASB issued updated guidance in Financial Instruments-Credit Losses Topic 326 of the ASC. The objective of this update is to provide information about expected credit losses on financial instruments and other commitments to extend credit. Specifically, this updated guidance replaces the current incurred loss impairment methodology, which delays recognition of a loss until it is probable a loss has been incurred, with a methodology that reflects expected credit losses considering a broader range of reasonable and supportable information. This guidance covers financial assets that are not accounted for at fair value through net income, thus will not be applicable to the Company's equity investments upon implementation of the updated guidance described above for the Financial Instruments-Overall Subtopic 825-10. This guidance is effective for interim and annual periods beginning after December 15, 2019, and is to be applied with a cumulative-effect adjustment to retained earnings as of the beginning of the first reporting period in which the guidance is effective (modified-retrospective approach). Early adoption is permitted, but only to fiscal years beginning after December 15, 2018. The Company will adopt this guidance during the first quarter of 2020. The Company is currently evaluating the impact this guidance will have on the Company's consolidated financial condition and operating results.