Summary of Significant Accounting Policies | Summary of Significant Accounting Policies Basis of Presentation The consolidated financial statements have been prepared in conformity with U.S. GAAP and the rules of the SEC. Principles of Consolidation The consolidated financial statements include the accounts of Kforce Inc. and its wholly-owned subsidiaries. All intercompany transactions and balances have been eliminated in consolidation. References in this document to “Kforce,” “the Company,” “we,” “the Firm,” “management,” “our” or “us” refer to Kforce Inc. and its subsidiaries, except where the context indicates otherwise. Use of Estimates The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. The most important of these estimates and assumptions relate to the following: allowance for doubtful accounts, fallouts and other trade accounts receivable reserves; income taxes; self-insured liabilities for workers’ compensation and health insurance; obligations for defined benefit pension plans and goodwill and identifiable intangible assets and any related impairment. Although these and other estimates and assumptions are based on the best available information, actual results could be materially different from these estimates. Revenue Recognition Revenue is considered earned once evidence of an arrangement has been obtained, service is performed or delivery has occurred, fees are fixed or determinable, and collectability is reasonably assured. Kforce’s primary sources of revenues are Flex and Direct Hire. Flex revenues are recognized as the temporary staffing services are provided by Kforce’s consultants. Flex revenues are recorded net of credits, discounts, rebates and revenue-related reserves. Reimbursements of travel and out-of-pocket expenses (“billable expenses”) are also recorded within Flex revenues with an equivalent amount of expense recorded in direct costs of services. Direct Hire revenues are recognized when candidates accept offers of permanent employment and are scheduled to commence employment within 30 days . Direct Hire revenues are recorded net of an estimated reserve for fallouts, which is estimated based on Kforce’s historical fallout experience. Fallouts occur when a candidate does not remain employed with the client through the contingency period, which is typically 90 days or less. Our GS segment does not generate any Direct Hire revenues. Our GS segment generates its revenues under contracts that are, in general, greater in duration than our other segments and which can often span several years, inclusive of renewal periods. Our GS segment, which represents approximately 8% of total revenues, generates revenues under the following contract arrangements: • Revenues for time-and-materials contracts, which accounts for approximately 58% of this segment’s revenue, are recognized based on contractually established billing rates at the time services are provided. • Revenues for fixed-price contracts are recognized on the basis of the estimated percentage-of-completion. Approximately 30% of this segment’s revenues are recognized under this method. Progress towards completion is typically measured based on costs incurred as a proportion of estimated total costs or other measures of progress when applicable. Profit in a given period is reported at the expected profit margin to be achieved on the overall contract. • Revenues for the product-based business, which accounts for approximately 12% of this segment’s revenues, are recognized at the time of delivery. Kforce collects sales tax for various taxing authorities and our policy is to record these amounts on a net basis; thus, gross sales tax amounts are not included in net service revenues. Direct Costs of Services Direct costs of services are composed of all related costs of employment for consultants, including compensation, payroll taxes, payroll-related insurance and certain fringe benefits, as well as subcontractor costs. Direct costs of services exclude depreciation and amortization expense (except for the GS product-based business), which is presented on a separate line in the accompanying Consolidated Statements of Operations and Comprehensive Income. Commissions Our associates make placements and earn commissions as a percentage of gross profit for Flex or Direct Hire revenues pursuant to a commission plan. The amount of associate commissions paid increases as volume increases. Kforce accrues commissions at a percentage equal to the percent of total expected commissions payable to total revenues or gross profit for the commission-plan period, as applicable. Stock-Based Compensation Stock-based compensation is measured using the grant-date fair value of the award of equity instruments. The expense is recognized over the requisite service period. Effective January 1, 2017, as a result of our adoption of a recently issued accounting standard, the Firm changed its accounting policy regarding forfeitures and elected to recognize as incurred. Income Taxes Kforce accounts for income taxes using the asset and liability approach to the recognition of deferred tax assets and liabilities for the expected future tax consequences of differences between the financial statement carrying amounts and the tax basis of assets and liabilities. Unless it is more likely than not that a deferred tax asset can be utilized to offset future taxes, a valuation allowance is recorded against that asset. Effective January 1, 2017, as a result of our adoption of a recently issued accounting standard, excess tax benefits or deficiencies of deductions attributable to employees’ vesting of restricted stock are reflected in Income tax expense in the accompanying Consolidated Statements of Operations and Comprehensive Income. Management evaluates tax positions that have been taken or are expected to be taken in its tax returns and records a liability for uncertain tax positions. Kforce recognizes tax benefits from uncertain tax positions when it is more likely than not that the position will be sustained upon examination, including resolutions of any related appeals or litigation processes. Cash and Cash Equivalents Kforce classifies all highly liquid investments with an original initial maturity of three months or less as cash equivalents. Cash and cash equivalents consist of cash on hand with banks, either in commercial accounts, or overnight interest-bearing money market accounts and at times may exceed federally insured limits. Cash and cash equivalents are stated at cost, which approximates fair value due to the short duration of their maturities. Trade Accounts Receivable and Related Reserves Kforce records trade accounts receivables at the invoiced amount, net of reserves for allowance for doubtful accounts, fallouts, early payment discounts and revenue adjustments based on historical trends and estimates of potential future activity. The allowance for doubtful accounts, which comprises a majority of our trade accounts receivable reserves, is determined based on factors including recent write-off and delinquency trends, a specific analysis of significant receivable balances that are past due, the concentration of trade accounts receivables among clients and higher-risk sectors, and the current state of the U.S. economy. Trade accounts receivables are written off after all reasonable collection efforts have been exhausted. Trade accounts receivable reserves as a percentage of gross trade receivables was 1.0% at December 31, 2017 and 2016 . Fixed Assets Fixed assets are carried at cost, less accumulated depreciation. Depreciation is computed using the straight-line method over the estimated useful lives of the assets. The cost of leasehold improvements is amortized using the straight-line method over the lesser of the estimated useful lives of the assets or the terms of the related leases, which generally range from three to five years. Upon sale or disposition of our fixed assets, the cost and accumulated depreciation are removed and any resulting gain or loss, net of proceeds, is reflected within SG&A in the Consolidated Statements of Operations and Comprehensive Income. Leases Leases for our field offices, which are located throughout the U.S., range from three to five -year terms although a limited number of leases contain short-term renewal provisions that range from month-to-month to one year . For leases that contain escalations of the minimum rent, we recognize the related rent expense on a straight-line basis over the lease term. We record any difference between the straight-line rent amounts and amounts payable under the leases as a deferred rent liability in Accounts payable and other accrued liabilities or Other long-term liabilities, as appropriate, in the Consolidated Balance Sheets. The Company records incentives provided by landlords for leasehold improvements in Accounts payable and other accrued liabilities or Other long-term liabilities, as appropriate, in the Consolidated Balance Sheets and records a corresponding reduction in rent expense on a straight-line basis over the lease term. Goodwill and Other Intangible Assets Goodwill Management has determined that the reporting units for the goodwill analysis is consistent with our reporting segments. We evaluate goodwill for impairment either through a qualitative or quantitative approach annually, or more frequently if an event occurs or circumstances change that indicate the carrying value of a reporting unit may not be recoverable. If we perform a quantitative assessment that indicates the carrying amount of a reporting unit exceeds its fair market value, an impairment loss is recognized to reduce the carrying amount to its fair market value. Kforce determines the fair market value of each reporting unit based on a weighting of the present value of projected future cash flows (the “income approach”) and the use of comparative market approaches under both the guideline company method and guideline transaction method (collectively, the “market approach”). Fair market value using the income approach is based on Kforce’s estimated future cash flows on a discounted basis. The market approach compares each reporting unit to other comparable companies based on valuation multiples derived from operational and transactional data to arrive at a fair value. Factors requiring significant judgment include, among others, the assumptions related to discount rates, forecasted operating results, long-term growth rates, the determination of comparable companies, and market multiples. Changes in economic and operating conditions or changes in Kforce’s business strategies that occur after the annual impairment analysis may impact these assumptions and result in a future goodwill impairment charge, which could be material to our consolidated financial statements. Other Intangible Assets Identifiable intangible assets arising from certain of Kforce’s acquisitions include non-compete and employment agreements, contractual relationships, client contracts, technology, and a trade name and trademark. Our trade names and trademarks, and derivatives thereof, and GS’s Data Confidence trademark are important to our business. Our primary trade names and trademark are registered with the U.S. Patent and Trademark Office. For definite-lived intangible assets, amortization is computed using the straight-line method over the period of expected benefit, which ranges from one to fifteen years . The impairment evaluation for indefinite-lived intangible assets, our trademark and trade name, is conducted on an annual basis or more frequently if events or changes in circumstances indicate that an asset may be impaired. Impairment of Long-Lived Assets Kforce reviews long-lived assets for impairment whenever events or changes in circumstances indicate that the carrying amount of such assets may not be recoverable. Recoverability of long-lived assets is measured by a comparison of the carrying amount of the asset group to the future undiscounted net cash flows expected to be generated by those assets. If an analysis indicates the carrying amount of these long-lived assets exceeds the fair value, an impairment loss is recognized to reduce the carrying amount to its fair market value, as determined based on the present value of projected future cash flows. Capitalized Software Kforce purchases, develops, and implements software to enhance the performance of our technology infrastructure. Direct internal costs, such as payroll and payroll-related costs, and external costs incurred during the development stage are capitalized and classified as capitalized software. Capitalized software development costs and the associated accumulated amortization are classified as Other assets, net in the accompanying Consolidated Balance Sheets. Amortization is computed using the straight-line method over the estimated useful lives of the software, which range from one to seven years. Workers’ Compensation Kforce retains the economic burden for the first $250 thousand per occurrence in workers’ compensation claims except: (1) in states that require participation in state-operated insurance funds and (2) for Kforce Government Solutions, Inc. which is fully insured for workers’ compensation claims. Workers’ compensation includes ongoing health care and indemnity coverage for claims and may be paid over numerous years following the date of injury. Workers’ compensation expense includes insurance premiums paid, claims administration fees charged by Kforce’s workers’ compensation administrator, premiums paid to state-operated insurance funds and an estimate for Kforce’s liability for IBNR claims and for the ongoing development of existing claims. Kforce estimates its workers’ compensation liability based upon historical claims experience, actuarially determined loss development factors, and qualitative considerations such as claims management activities. Health Insurance Except for certain fully insured health insurance lines of coverage, Kforce retains the risk of loss for each health insurance plan participant up to $350 thousand in claims annually. Additionally, for all claim amounts exceeding $350 thousand , Kforce retains the risk of loss up to an aggregate annual loss of those claims of $700 thousand . For its partially self-insured lines of coverage, health insurance costs are accrued using estimates to approximate the liability for reported claims and IBNR claims, which are primarily based upon an evaluation of historical claims experience, actuarially-determined completion factors and a qualitative review of our health insurance exposure including the extent of outstanding claims and expected changes in health insurance costs. Defined Benefit Pension Plans Kforce recognizes the unfunded status of its defined benefit pension plans as a liability in its Consolidated Balance Sheets. Because our plans are unfunded as of December 31, 2017 , actuarial gains and losses may arise as a result of the actuarial experience of the plans, as well as changes in actuarial assumptions in measuring the associated obligation as of year-end, or an interim date if any re-measurement is necessary. The net after-tax impact of unrecognized actuarial gains and losses related to our defined benefit pensions plans is recorded in accumulated other comprehensive income (loss) in our consolidated financial statements. Amortization of a net unrecognized gain or loss in accumulated other comprehensive income (loss) is included as a component of net periodic benefit cost if, as of the beginning of the year, that net gain or loss exceeds 10% of the projected benefit obligation. If amortization is required, the minimum amortization shall be that excess divided by the average remaining service period of active plan participants. Earnings per Share Basic earnings per share is computed as net income divided by the weighted average number of common shares outstanding (“WASO”) during the period. WASO excludes unvested shares of restricted stock. Diluted earnings per share is computed by dividing net income by diluted WASO. Diluted WASO includes the dilutive effect of stock options and other potentially dilutive securities such as unvested shares of restricted stock using the treasury stock method, except where the effect of including potential common shares would be anti-dilutive. For the years ended December 31, 2017 , 2016 and 2015 , there were 364 thousand , 175 thousand , and 280 thousand common stock equivalents, respectively, included in the diluted WASO. For the years ended December 31, 2017 , 2016 and 2015 , there were 527 thousand , 32 thousand and 1 thousand , respectively, of anti-dilutive common stock equivalents. Treasury Stock Kforce’s Board may authorize share repurchases of Kforce’s common stock. Shares repurchased under Board authorizations are held in treasury for general corporate purposes, including issuances under the 2009 Employee Stock Purchase Plan. Treasury shares are accounted for under the cost method and reported as a reduction of stockholders’ equity in the accompanying consolidated financial statements. Derivative Instrument Kforce’s interest rate swap derivative instrument is recorded at fair value on the Consolidated Balance Sheets. The derivative instrument has been designated as a cash flow hedge; the effective portion of the gain or loss on the derivative instrument is recorded as a component of Accumulated other comprehensive income (loss), net of tax, and reclassified into earnings when the hedged item affects earnings and into the line item of the hedged item. Any ineffective portion of the gain or loss is recognized immediately into Other expense, net on the Consolidated Statements of Operations and Comprehensive Income. Cash flows from the derivative instrument are classified in the Consolidated Statements of Cash Flows in the same category as the hedged item. Fair Value Measurements Kforce uses fair value measurements in areas that include, but are not limited to: the impairment testing of goodwill, other intangible assets and other long-lived assets; stock-based compensation; interest rate swap and a contingent consideration liability. The carrying values of cash and cash equivalents, trade accounts receivable, other current assets and accounts payable, and other liabilities approximate fair value because of the short-term nature of these instruments. Using available market information and appropriate valuation methodologies, Kforce has determined the estimated fair value measurements; however, considerable judgment is required in interpreting data to develop the estimates of fair value. New Accounting Standards Recently Adopted Accounting Standards In March 2017, the FASB issued authoritative guidance requiring that an employer disaggregate the service cost component from the other components of net periodic benefit cost for defined benefit pension plans. The amendments also provide explicit guidance on how to present the service cost component and the other components of net periodic benefit cost in the income statement. The guidance is to be applied for annual periods beginning after December 15, 2017, including interim periods within those annual periods, and early adoption is permitted. The guidance should be applied retrospectively for the presentation of the service cost component and the other components of net periodic benefit cost in the income statements. We elected to early adopt this guidance as of January 1, 2017 due to the ease of implementation. The impact of early adoption resulted in a retrospective adjustment to the Consolidated Statements of Operations and Comprehensive Income to reclass the interest cost component of net periodic benefit cost from Selling, general and administrative expenses to Other expense, net. The amount of the reclassification was approximately $0.5 million , $0.5 million and $0.4 million for the years ended December 31, 2017 , 2016 and 2015 , respectively. In January 2017, the FASB issued authoritative guidance simplifying the subsequent measurement of goodwill by eliminating Step 2 from the goodwill impairment test. Under this guidance, an entity should recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value; however, the loss recognized should not exceed the total amount of goodwill allocated to that reporting unit. The guidance is to be applied for annual or any interim goodwill impairment tests in fiscal years beginning after December 15, 2019 and early adoption is permitted for interim or annual goodwill impairment tests performed on testing dates after January 1, 2017. The guidance requires companies to apply the requirements prospectively. We elected to early adopt this guidance as of January 1, 2017. The adoption of this guidance did not have an impact on the Firm’s consolidated financial statements. In March 2016, the FASB issued authoritative guidance regarding the accounting for share-based payment transactions, including income tax consequences, classification of awards as either equity or liability, and classification in the statement of cash flows. This guidance was effective for us on January 1, 2017. The impact of this guidance resulted in the following: • All excess tax benefits and deficiencies will be recognized as income tax benefit or expense in the income statement. Prior to the effective date, they were recognized as a change to additional paid-in capital. The Firm applied this amendment prospectively. For the year ended December 31, 2017 , the Firm recorded approximately $0.8 million of excess tax benefits as a reduction to income tax expense in the accompanying Consolidated Statements of Operations and Comprehensive Income. This resulted in a reduction to our effective tax rate of 1.2% and an increase to our diluted earnings per share of $0.03 for the year ended December 31, 2017 . This accounting standard guidance is likely to create volatility in the Firm’s effective tax rate in the future, though the impact is uncertain and based upon future stock price changes. • Excess tax benefits and deficiencies will be classified as an operating activity in the statement of cash flows. Prior to the effective date, they were included in financing activities in the statement of cash flows. The Firm elected to apply this amendment retrospectively. This change increased our net cash provided by operating activities by $0.8 million , $0.4 million and $0.6 million for the years ended December 31, 2017 , 2016 and 2015 , respectively, in the accompanying Consolidated Statements of Cash Flows. • An entity is allowed to make a policy election as to whether it will include an estimate for awards expected to be forfeited or whether it will account for forfeitures as incurred. The Firm elected to change its policy on accounting for forfeitures and to recognize as incurred. This policy election is to be applied using a modified retrospective approach with a cumulative-effect adjustment to retained earnings as of the effective date. The impact to the beginning balance of retained earnings was $0.5 million , which is net of taxes of $0.3 million , on January 1, 2017. In November 2015, the FASB issued authoritative guidance requiring that deferred tax assets and liabilities be classified as noncurrent in a classified statement of financial position. This guidance was effective for us on January 1, 2017. The Firm elected to apply this guidance retrospectively. As a result, $4.8 million of current deferred tax assets, net was reclassified to noncurrent deferred tax assets, net as of December 31, 2016 . Accounting Standards Not Yet Adopted In August 2017, the FASB issued authoritative guidance targeting improvements to accounting for hedging activities by simplifying the rules around hedge accounting and improving the disclosure requirements. The guidance is to be applied for annual periods beginning after December 15, 2018, including interim periods within those annual periods, and early adoption is permitted in any interim period. The hedge accounting guidance should be implemented using a modified retrospective approach for any hedges that exist on the date of adoption, while the presentation and disclosure requirements must be applied prospectively. Kforce is currently evaluating the potential impact on the consolidated financial statements. In June 2016, the FASB issued authoritative guidance on accounting for credit losses on financial instruments, including trade receivables. The guidance requires the application of a current expected credit loss model, which measures credit losses based on relevant information about past events, including historical experience, current conditions, and reasonable and supportable forecasts. The guidance is to be applied for annual periods beginning after December 15, 2019, and interim periods within those annual periods, and early adoption is permitted no sooner than annual periods beginning after December 15, 2018. The guidance requires companies to apply the requirements using a modified retrospective approach. Kforce is currently evaluating the potential impact on the consolidated financial statements. In February 2016, the FASB issued authoritative guidance regarding the accounting for leases. The guidance is to be applied for annual periods beginning after December 15, 2018, and interim periods within those annual periods, and early adoption is permitted. The guidance requires companies to apply the requirements retrospectively to all prior periods presented, including interim periods. Kforce elected not to adopt this standard early. The Firm has made progress with assessing contractual arrangements that may be impacted by the new standard. Kforce anticipates that the adoption of this standard will have a significant impact to its consolidated balance sheet as it will result in recording substantially all operating leases as a right-to-use asset and lease obligation. Kforce continues to assess all potential impacts of the standard, especially with respect to our disclosures. In May 2014, the FASB issued authoritative guidance regarding revenue from contracts with customers, which specifies that revenue should be recognized when promised goods or services are transferred to customers in an amount that reflects the consideration which the company expects to be entitled in exchange for those goods or services. In August 2015, the FASB issued authoritative guidance deferring the effective date of the new revenue standard by one year for all entities. The one-year deferral results in the guidance being effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2017 and entities are not permitted to adopt the standard earlier than the original effective date. Since May 2014, the FASB has issued additional and amended authoritative guidance regarding revenue from contracts with customers to clarify and improve the understanding of the implementation guidance. The guidance permits companies to either apply the requirements retrospectively to all prior periods presented, or apply the requirements in the year of adoption, through a cumulative adjustment. We have selected the modified retrospective transition method. We have completed our assessment and have concluded that it will not have a material impact on the timing of our revenue recognition as substantially all of our contracts with customers will continue to be recognized over time as services are rendered. Upon adoption, we will recognize the cumulative effect of adopting this guidance as an adjustment to our opening balance of retained earnings, net of tax, primarily related to certain GS contracts; this adjustment will be approximately $0.2 million . We will also reclassify the allowance for Direct Hire fallouts from trade accounts receivable to a contract liability on the consolidated balance sheets. Additionally, there will be an increase in the level of disclosure around our arrangements and resulting revenue recognition. |