Fair Value Measurements	12 Months Ended
Fair Value Measurements	Dec. 31, 2022
Fair Value Disclosures [Abstract]
Fair Value Measurements	15. Fair Value Measurements Recurring Fair Values - Interest Rate Swap Derivative Instruments Our interest rate swaps were previously measured at fair value using readily observable inputs, which are considered to be Level 2 inputs, on a recurring basis and were recorded in Other long-term liabilities within the accompanying Consolidated Balance Sheets. In April 2022, Swap A matured and in May 2022, we terminated Swap B. Refer to Note 14 - “Derivative Instrument and Hedging Activity” for a complete discussion of the interest rate swap derivative instruments. The fair value of the interest rate swap derivative instruments at December 31, 2021was an asset of $823 thousand and was classified as a Level 2 instrument. At December 31, 2022, Kforce had no interest rate swap derivative instruments outstanding. Nonrecurring Fair Values - Equity Method Investment We review the equity method investment for impairment whenever events or changes in circumstances indicate that the carrying amount of the investment may not be recoverable. An impairment loss is recognized in the event that an other-than-temporary decline in the fair value of the investment occurs. Events such as the impact of the COVID-19 pandemic (in 2020), a strategic repositioning of the joint venture to focus on providing its clients with an ability to directly source and engage talent on its platform (in 2021) and delays in WorkLLama’s ability to achieve its financial projections, despite continued demand for its technology platform, have resulted in the indicators of other than temporary impairments. When these events have occurred, we performed an impairment test utilizing the market and income approaches. For the income approach, we utilized estimated discounted future cash flows expected to be generated by WorkLLama. For the market approach, we utilized market multiples of revenue and earnings derived from comparable publicly-traded companies. These types of analyses contain uncertainties because they require management to make significant assumptions and judgments, including: (1) an appropriate rate to discount the expected future cash flows; (2) the inherent risk in achieving forecasted operating results; (3) long-term growth rates; (4) expectations for future economic cycles; (5) market comparable companies and appropriate adjustments thereto; and (6) market multiples. The fair value determination in our impairment tests is considered Level 3, due to the high sensitivity to changes in key assumptions, including, but not limited to, the discount rate that is applied to the financial projections. The fair value of the equity investment, determined by our previous impairment analysis, concluded that the fair value exceeded the carrying value. During 2022, with the assistance of an independent financial advisor, WorkLLama and Kforce were pursuing the identification of a strategic partner to support WorkLLama’s future growth expectations and further invest in their technology platform. In the fourth quarter of 2022, Kforce made a strategic decision to focus on investing in the growth of its business and to pursue an exit of its equity stake in WorkLLama, which was an indicator of other than temporary impairment. In December 2022, WorkLLama executed a LOI with an independent third party whereby they would acquire WorkLLama and settle the outstanding debt, or a portion thereof, owed by WorkLLama to Kforce. This transaction closed on February 23, 2023. As a result of this transaction, Kforce no longer has any equity interest in WorkLLama. Management used this, combined with other facts and circumstances, to determine the fair value of the equity method investment and recognized an impairment loss of the full balance of the equity method investment as of December 31, 2022. The fair value of the equity method investment was measured using the best information available, including the economics of the transaction and management’s judgment, which are considered Level 3 inputs. The valuation technique utilized at December 31, 2022 changed based on the circumstances discussed above. During the years ended December 31, 2021 and 2020, the Company did not record any impairments related to the equity method investment. Refer to Note 1 - “Summary of Significant Accounting Policies” for more details. There were no transfers into or out of Level 1, 2 or 3 assets or liabilities during the years ended December 31, 2022 and 2021.

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.