Summary of Significant Accounting Policies (Policies)

12 Months Ended

Dec. 31, 2015

The accompanying consolidated financial statements (“Financial Statements”) include the accounts of the Parent and its subsidiaries, and have been prepared in conformity with: (i) U.S. generally accepted accounting principles ("GAAP"); and (ii) the rules and regulations of the U.S. Securities and Exchange Commission (“SEC”). All significant intercompany accounts and transactions are eliminated in consolidation.

Use of Estimates

The preparation of our Financial Statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported financial statement balances, as well as the disclosure of contingent assets and liabilities. Actual results could differ from those estimates.

Reclassifications

Certain amounts in our prior years' Financial Statements and related notes have been reclassified to conform to the 2015 presentation. Such reclassifications had no effect on our net income, stockholders' equity, or cash flows.

Investments

Fixed income securities may include bonds, redeemable preferred stocks, mortgage-backed securities (“MBS”) and asset-backed securities (“ABS”). MBS and ABS are jointly referred to as structured securities. Fixed income securities classified as available-for-sale (“AFS”) are reported at fair value. Those fixed income securities that we have the ability and positive intent to hold to maturity are classified as held-to-maturity (“HTM”) and are carried at either: (i) amortized cost; or (ii) market value at the date of transfer into the HTM category, adjusted for subsequent amortization. The amortized cost of fixed income securities is adjusted for the amortization of premiums and the accretion of discounts over the expected life of the security using the effective yield method. Premiums and discounts arising from the purchase of structured securities are amortized over the expected life of the security based on future principal payments, and considering prepayments. These prepayments are estimated based on historical and projected cash flows. Prepayment assumptions are reviewed quarterly and adjusted to reflect actual prepayments and changes in expectations. Future amortization of any premium and/or discount is adjusted to reflect the revised assumptions. Interest income, as well as amortization and accretion, is included in "Net investment income earned" on our Consolidated Statements of Income. The amortized cost of fixed income securities is written down to fair value when a decline in value is considered to be other than temporary. See the discussion below on realized investment gains and losses for a description of the accounting for impairments. After-tax unrealized gains and losses on: (i) fixed income securities classified as AFS; and (ii) fixed income securities that were transferred into an HTM designation from an AFS designation, are included in accumulated other comprehensive income (loss) ("AOCI").

Equity securities, which are classified as AFS, may include common stocks and non-redeemable preferred stocks, and are carried at fair value. Dividend income on these securities is included in "Net investment income earned" on our Consolidated Statements of Income. The associated unrealized gains and losses, net of tax, are included in AOCI. The cost of equity securities is written down to fair value when a decline in value is considered to be other than temporary. See the discussion below on realized investment gains and losses for a description of the accounting for impairments.

Short-term investments may include certain money market instruments, savings accounts, commercial paper, and other debt issues purchased with a maturity of less than one year. These investments are carried at cost, which approximates fair value. The associated income is included in "Net investment income earned" on our Consolidated Statement of Income.

Other investments may include alternative investments and other securities. Alternative investments are accounted for using the equity method. Our share of distributed and undistributed net income from alternative investments is included in "Net investment income earned" on our Consolidated Statement of Income. Other securities are primarily comprised of tax credit investments. Low income housing tax credits are accounted for under the proportional amortization method and all other tax credits are accounted for using the equity method. Under the proportional amortization method, our share of the investment’s performance is recorded in our Consolidated Statement of Income as a component of “Federal income tax expense.” Under the equity method, our share of distributed and undistributed net income is included in "Net investment income earned" on our Consolidated Statement of Income.

Realized gains and losses on the sale of investments are determined on the basis of the cost of the specific investments sold and are credited or charged to income. Included in realized gains and losses are the other-than-temporary impairment ("OTTI") charges recognized in earnings, which are discussed below.

When the fair value of any investment is lower than its cost/amortized cost, an assessment is made to determine if the decline is other than temporary. We regularly review our entire investment portfolio for declines in fair value. If we believe that a decline in the value of an AFS security is temporary, we record the decline as an unrealized loss in AOCI. Temporary declines in the value of an HTM security are not recognized in the Financial Statements. Our assessment of a decline in fair value includes judgment as to the financial position and future prospects of the entity that issued the investment security, as well as a review of the security’s underlying collateral for fixed income investments. Broad changes in the overall market or interest rate environment generally will not lead to a write-down.

Fixed Income Securities and Short-Term Investments

Our evaluation for OTTI of a fixed income security or a short-term investment may include, but is not limited to, the evaluation of the following factors:


•	Whether the decline appears to be issuer or industry specific;


•	The degree to which the issuer is current or in arrears in making principal and interest payments on the fixed income security;


•	The issuer’s current financial condition and ability to make future scheduled principal and interest payments on a timely basis;


•	Evaluation of projected cash flows;


•	Buy/hold/sell recommendations published by outside investment advisors and analysts; and


•	Relevant rating history, analysis, and guidance provided by rating agencies and analysts.

OTTI charges are recognized as a realized loss to the extent that they are credit related, unless we have the intent to sell the security or it is more-likely-than not that we will be required to sell the security. In those circumstances, the security is written down to fair value with the entire amount of the writedown charged to earnings as a component of realized losses.

To determine if an impairment is other than temporary, we compare the present value of cash flows expected to be collected with the amortized cost of fixed income securities meeting certain criteria. In addition, this analysis is performed on all previously-impaired debt securities that continue to be held by us and all structured securities that were not of high-credit quality at the date of purchase. These impairment assessments may include, but are not limited to, discounted cash flow analyses ("DCFs").

For structured securities, including commercial mortgage-backed securities ("CMBS"), residential mortgage-backed securities ("RMBS"), ABS, and collateralized debt obligations ("CDOs"), we also consider variables such as expected default, severity, and prepayment assumptions based on security type and vintage, taking into consideration information from credit agencies, historical performance, and other relevant economic and performance factors.

In making our assessment, we perform a DCF to determine the present value of future cash flows to be generated by the underlying collateral of the security. Any shortfall in the expected present value of the future cash flows, based on the DCF, from the amortized cost basis of a security is considered a “credit impairment,” with the remaining decline in fair value of a security considered as a “non-credit impairment.” As mentioned above, credit impairments are charged to earnings as a component of realized losses, while non-credit impairments are recorded to Other Comprehensive Income ("OCI") as a component of unrealized losses.

Discounted Cash Flow Assumptions

The discount rate we use in a DCF is the effective interest rate implicit in the security at the date of acquisition for those structured securities that were not of high-credit quality at acquisition. For all other securities, we use a discount rate that equals the current yield, excluding the impact of previous OTTI charges, used to accrete the beneficial interest.

If applicable, we use a conditional default rate assumption in the DCF to estimate future defaults. The conditional default rate is the proportion of all loans outstanding in a security at the beginning of a time period that are expected to default during that period. Our assumption of this rate takes into consideration the uncertainty of future defaults as well as whether or not these securities have experienced significant cumulative losses or delinquencies to date.

If applicable, conditional default rate assumptions apply at the total collateral pool level held in the securitization trust. Generally, collateral conditional default rates will “ramp-up” over time as the collateral seasons, because the performance begins to weaken and losses begin to surface. As time passes, depending on the collateral type and vintage, losses will peak and performance will begin to improve as weaker borrowers are removed from the pool through delinquency resolutions. In the later years of a collateral pool’s life, performance is generally materially better as the resulting favorable selection of the portfolio improves the overall quality and performance.

For CMBS, we also consider the net operating income (“NOI”) generated by the underlying properties. Our assumptions of the properties’ ultimate cash flows take into consideration both an immediate reduction to the reported NOIs and decreases to projected NOIs.

If applicable, we use a loan loss severity assumption in our DCF that is applied at the loan level of the collateral pool. The loan loss severity assumptions represent the estimated percentage loss on the loan-to-value exposure for a particular security. For CMBS, the loan loss severities applied are based on property type. Losses generated from the evaluations are then applied to the entire underlying deal structure in accordance with the original service agreements.

Equity Securities

Evaluation for OTTI of an equity security may include, but is not limited to, an evaluation of the following factors:


•	Whether the decline appears to be issuer or industry specific;


•	The relationship of market prices per share to book value per share at the date of acquisition and date of evaluation;


•	The price-earnings ratio at the time of acquisition and date of evaluation;


•	The financial condition and near-term prospects of the issuer, including any specific events that may influence the issuer's operations, coupled with our intention to hold the securities in the near-term;


•	The recent income or loss of the issuer;


•	The independent auditors' report on the issuer's recent financial statements;


•	The dividend policy of the issuer at the date of acquisition and the date of evaluation;


•	Buy/hold/sell recommendations or price projections published by outside investment advisors;


•	Rating agency announcements;


•	The length of time and the extent to which the fair value has been, or is expected to be, less than its cost in the near term; and


•	Our expectation of when the cost of the security will be recovered.

If there is a decline in the fair value on an equity security that we do not intend to hold, or if we determine the decline is other-than-temporary, including declines driven by market volatility for which we cannot assert will recover in the near term, we will write down the carrying value of the investment and record the charge through earnings as a component of realized losses.

Other Investments

Our evaluation for OTTI of an other investment (i.e., an alternative investment) may include, but is not limited to, conversations with the management of the alternative investment concerning the following:


•	The current investment strategy;


•	Changes made or future changes to be made to the investment strategy;


•	Emerging issues that may affect the success of the strategy; and


•	The appropriateness of the valuation methodology used regarding the underlying investments.

If there is a decline in the fair market value of an other investment that we do not intend to hold, or if we determine the decline is other than temporary, we write down the carry value of the investment and record the charge through earnings as a component of realized losses.

Fair Value of Financial Instruments

Fair Values of Financial Instruments

Assets

The fair values of our investments are generated using various valuation techniques and are placed into the fair value hierarchy considering the following: (i) the highest priority is given to quoted prices in active markets for identical assets (Level 1); (ii) the next highest priority is given to quoted prices in markets that are not active or inputs that are observable either directly or indirectly, including quoted prices for similar assets in markets that are not active and other inputs that can be derived principally from, or corroborated by, observable market data for substantially the full term of the assets (Level 2); and (iii) the lowest priority is given to unobservable inputs supported by little or no market activity and that reflect our assumptions about the exit price, including assumptions that market participants would use in pricing the asset (Level 3). An asset’s classification within the fair value hierarchy is based on the lowest level of significant input to its valuation. Transfers between levels in the fair value hierarchy are recognized at the end of the reporting period.

The techniques used to value our financial assets are as follows:

Allowance for Doubtful Accounts

We estimate an allowance for doubtful accounts on our premiums receivable. This allowance is based on historical write-off percentages adjusted for the effects of current and anticipated trends. An account is charged off when we believe it is probable that we will not collect a receivable. In making this determination, we consider information obtained from our efforts to collect amounts due directly and/or through collection agencies.

Share-Based Compensation

Share-based compensation consists of all share-based payment transactions in which an entity acquires goods or services by issuing (or offering to issue) its shares, share units, share options, or other equity instruments. The cost resulting from all share-based payment transactions are recognized in the Financial Statements based on the fair value of both equity and liability awards. The fair value is measured at grant date for equity awards, whereas the fair value for liability awards are remeasured at each reporting period. Both the fair value of equity and liability awards is recognized over the requisite service period. The requisite service period is typically the lesser of the vesting period or the period of time from the grant date to the date of retirement eligibility. The expense recognized for share-based awards, which, in some cases, contain performance criteria, is based on the number of shares or units expected to be issued at the end of the performance period.

Reinsurance

Property and Equipment

Property and equipment used in operations, including certain costs incurred to develop or obtain computer software for internal use, are capitalized and carried at cost less accumulated depreciation. Depreciation is calculated using the straight-line method over the estimated useful lives of the assets. The following estimated useful lives can be considered as general guidelines:



Asset Category		Years
Computer hardware		3
Computer software		3 to 5
Internally developed software		5 to 10
Furniture and fixtures		10
Buildings and improvements		5 to 40

Deferred Policy Acquisition Costs

Deferred policy acquisition costs are limited to costs directly related to the successful acquisition of insurance contracts. Costs meeting this definition typically include, among other things, sales commissions paid to our distribution partners, premium taxes, and the portion of employee salaries and benefits directly related to time spent on acquired contracts. These costs are deferred and amortized over the life of the contracts.

Accounting guidance requires a premium deficiency analysis to be performed at the level an entity acquires, services, and measures the profitability of its insurance contracts. We currently perform three premium deficiency analyses for our insurance segments, consistent with our reportable segments of Standard Commercial Lines, Standard Personal Lines, and E&S Lines. A combined ratio of over 100% does not necessarily indicate a premium deficiency, as any year's combined ratio includes a portion of underwriting expenses that are expensed at policy inception and therefore are not covered by the remaining unearned premium. In addition, investment income is not contemplated in the combined ratio calculation.

There were no premium deficiencies for any of the reported years, as the sum of the anticipated losses and loss expenses, unamortized acquisition costs, policyholder dividends, and other expenses for each segment did not exceed that segment’s related unearned premium and anticipated investment income. The investment yields assumed in the premium deficiency assessment for each reporting period, which are based on our actual average investment yield before tax as of the September 30 calculation date, were 2.5% for 2015 and 3.0% for both 2014 and 2013. Deferred policy acquisition costs amortized to expense were $399.4 million for 2015, $364.3 million for 2014, and $331.8 million for 2013.

Goodwill

Goodwill results from business acquisitions where the cost of assets and liabilities acquired exceeds the fair value of those assets and liabilities. A quantitative goodwill impairment analysis is performed if our quarterly qualitative analysis indicates that it is more likely than not that the fair value of a reporting unit is less than its carrying amount. Goodwill is allocated to the reporting units for purposes of these analyses.

Reserves for Losses and Loss Expenses

Reserves for losses and loss expenses are comprised of both case reserves on individual claims, and reserves for claims incurred but not reported ("IBNR"). Case reserves result from claims that have been reported to one or more of our ten insurance subsidiaries, which are collectively referred to as the "Insurance Subsidiaries," and are estimated at the amount of the expected ultimate payment. IBNR reserves are established at more aggregated levels than case basis reserves, and in addition to reserves on claims that have been incurred but not reported, they include provisions for future emergence on known claims, and as well as reopened claims. IBNR reserves are established based on the results of the Insurance Subsidiaries’ internal reserve analysis, supplemented with other internal and external information.

The internal reserve analysis is performed quarterly, and relies upon generally accepted actuarial techniques. Such techniques assume that past experience, adjusted for the effects of current developments and anticipated trends, are an appropriate basis for predicting future events. While the reserve analysis is the primary basis for determining IBNR reserves, other internal and external factors are considered. Internal factors include: (i) supplemental data regarding claim reporting and settlement trends; (ii) exposure estimates for reported claims, along with recent development on those estimates with respect to individual large claims and the aggregate of all claims; (iii) the rate at which new large or complex claims are being reported; and (iv) additional trends observed by claims personnel or reported to them by defense counsel. External factors considered include: (i) legislative enactments; (ii) judicial decisions; (iii) legal developments in the determination of liability and the imposition of damages; and (iv) trends in general economic conditions, including the effects of inflation.

Loss reserves are estimates, and as such, we also consider a range of possible loss and loss expense reserve estimates. This range is determined at the beginning of each year, and reflects the fact that there is no single precise method for estimating the required reserves, due to the many factors which may influence the amounts ultimately paid. Considering the reserve range along with all of the items described above, IBNR estimates are then established and recorded.

The combination of the IBNR estimates along with the case reserve estimates on individual claims results in our total reserves for losses and loss expenses. These reserves are expected to be sufficient for settling all loss and loss reserve liabilities on unpaid claims, reflecting changes in the volume of business written, claims frequency and severity, the mix of business, claims processing, and other items that management expects to affect our ultimate settlement of losses and loss expenses. However, the ultimate claim settlements may be higher or lower than reserves established. As our experience emerges and other information develops, we revise our reserve estimates accordingly. The changes in these estimates, resulting from the continuous review process and the differences between estimates and ultimate payments, are reflected in the consolidated statements of income for the period in which such estimates are changed. The associated impacts may be material to the results of operations in future periods.

We do not discount to present value that portion of our losses and loss expense reserves expected to be paid in future periods.

Our loss and loss expense reserves implicitly include anticipated recoveries for salvage and subrogation claims.

Revenue Recognition

The Insurance Subsidiaries' net premiums written (“NPW”) include direct insurance policy writings, plus reinsurance assumed and estimates of premiums earned but unbilled on the workers compensation and general liability lines of insurance, less reinsurance ceded. The estimated premium on the workers compensation and general liability lines is referred to as audit premium. We estimate this premium, as it is anticipated to be either billed or returned on policies subsequent to expiration based on exposure levels (i.e. payroll or sales). Audit premium is based on historical trends adjusted for the uncertainty of future economic conditions. Economic instability could ultimately impact our estimates and assumptions, and changes in our estimate may be material to the results of operations in future periods. Premiums written are recognized as revenue over the period that coverage is provided using the semi-monthly pro-rata method. Unearned premiums and prepaid reinsurance premiums represent that portion of premiums written that are applicable to the unexpired terms of policies in force.

Dividends to Policyholders

We establish reserves for dividends to policyholders on certain policies, most significantly workers compensation policies. These dividends are based on the policyholders' loss experience. The dividend reserves are established based on past experience, adjusted for the effects of current developments and anticipated trends. The expense for these dividends is recognized over a period that begins at policy inception and ends with the payment of the dividend. We do not issue policies that entitle the policyholder to participate in the earnings or surplus of our Insurance Subsidiaries.

Federal Income Tax

We use the asset and liability method of accounting for income taxes. Current federal income taxes are recognized for the estimated taxes payable or refundable on tax returns for the current year. Deferred federal income taxes arise from the recognition of temporary differences between financial statement carrying amounts and the tax basis of assets and liabilities. We consider all evidence, both positive and negative, with respect to our federal tax loss carryback availability, expected levels of pre-tax financial statement income, and federal taxable income, when evaluating whether the temporary differences will be realized. In projecting future taxable income, we begin with budgeted pre-tax income adjusted for estimated non-taxable items. The assumptions about future taxable income require significant judgment and are consistent with the plans and estimates we use to manage our businesses. A valuation allowance is established when it is more likely than not that some portion of the deferred tax asset will not be realized. A liability for uncertain tax positions is recorded when it is more likely than not that a tax position will not be sustained upon examination by taxing authorities. The effect of a change in tax rates is recognized in the period of enactment.

Leases

We have various operating leases for office space and equipment. Rental expense for such leases is recorded on a straight-line basis over the lease term. If a lease has a fixed and determinable escalation clause, or periods of rent holidays, the difference between rental expense and rent paid is included in "Other liabilities" as deferred rent in the Consolidated Balance Sheets.

In addition, we have various capital leases for computer hardware and software. These leases are accounted for as an acquisition of an asset and an incurrence of an obligation. Depreciation is calculated using the straight-line method over the shorter of the estimated useful life of the asset or the lease term.

Pension

Our pension and post-retirement life benefit obligations and related costs are calculated using actuarial methods, within the framework of GAAP. Our pension benefit obligation is determined as the actuarial present value of the vested benefits to which the employee is currently entitled, but based on the employee's expected date of separation or retirement. Our funding policy provides that payments to our pension trust shall be equal to the minimum funding requirements of the Employee Retirement Income Security Act, plus additional amounts that the Board of Directors of Selective Insurance Company of America (“SICA”) may approve from time to time.

Two key assumptions, the discount rate and the expected return on plan assets, are important elements of expense and/or liability measurement. We evaluate these key assumptions annually unless facts indicate that a more frequent review is required. The discount rate enables us to state expected future cash flows at their present value on the measurement date. The purpose of the discount rate is to determine the interest rates inherent in the price at which pension benefits could be effectively settled. Our discount rate selection is based on high-quality, long-term corporate bonds. To determine the expected long-term rate of return on the plan assets, we consider the current and expected asset allocation, as well as historical and expected returns on each plan asset class. Other assumptions involve demographic factors such as retirement age, mortality, turnover, and rate of compensation increases.