Kforce (KFRC) 10-Q 7 May 20 2020 Q1 Quarterly report Financial data

Cover

Cover - shares	3 Months Ended
	Mar. 31, 2020	May 04, 2020
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2020
Document Transition Report	false
Entity File Number	000-26058
Entity Registrant Name	Kforce Inc
Entity Incorporation, State or Country Code	FL
Entity Tax Identification Number	59-3264661
Entity Address, Address Line One	1001 East Palm Avenue
Entity Address, City or Town	Tampa
Entity Address, State or Province	FL
Entity Address, Postal Zip Code	33605
City Area Code	813
Local Phone Number	552-5000
Title of 12(b) Security	Common Stock, $0.01 per share
Trading Symbol	KFRC
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		21,921,984
Amendment Flag	false
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q1
Current Fiscal Year End Date	--12-31
Entity Central Index Key	0000930420

UNAUDITED CONDENSED CONSOLIDATE

UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Income Statement [Abstract]
Revenue	$ 335,208	$ 326,738
Direct costs	240,684	233,562
Gross profit	94,524	93,176
Selling, general and administrative expenses	79,216	79,813
Depreciation and amortization	1,393	1,650
Income from operations	13,915	11,713
Other expense, net	1,381	923
Income from continuing operations, before income taxes	12,534	10,790
Income tax expense	3,428	2,816
Income from continuing operations	9,106	7,974
Income from discontinued operations, net of tax	0	18,881
Net income	9,106	26,855
Other comprehensive loss:
Change in fair value of interest rate swaps, net of tax	(1,121)	(280)
Comprehensive income	$ 7,985	$ 26,575
Earnings per share – basic:
Continuing operations (in dollars per share)	$ 0.42	$ 0.33
Discontinued operations (in dollars per share)	0	0.77
Earnings per share - basic (in dollars per share)	0.42	1.10
Earnings per share – diluted:
Continuing operations (in dollars per share)	0.42	0.32
Discontinued operations (in dollars per share)	0	0.75
Earnings per share – diluted (in dollars per share)	$ 0.42	$ 1.07
Weighted average shares outstanding – basic (in shares)	21,553	24,516
Weighted average shares outstanding – diluted (in shares)	21,860	25,019

UNAUDITED CONDENSED CONSOLIDA_2

UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 31,774	$ 19,831
Accounts Receivable, after Allowance for Credit Loss, Current	235,587	217,929
Prepaid expenses and other current assets	7,401	7,475
Total current assets	274,762	245,235
Fixed assets, net	29,462	29,975
Other assets, net	67,678	72,838
Deferred tax assets, net	8,546	8,037
Goodwill	25,040	25,040
Total assets	405,488	381,125
Current liabilities:
Accounts payable and other accrued liabilities	37,125	33,232
Accrued payroll costs	45,988	44,001
Current portion of operating lease liabilities	5,201	5,685
Income taxes payable	4,026	878
Other current liabilities	954	1,168
Total current liabilities	93,294	84,964
Long-term debt – credit facility	100,000	65,000
Other long-term liabilities	58,795	63,898
Total liabilities	252,089	213,862
Commitments and contingencies (Note M)
Stockholders’ equity:
Preferred stock, $0.01 par; 15,000 shares authorized, none issued and outstanding	0	0
Common stock, $0.01 par; 250,000 shares authorized, 72,198 and 72,202 issued, respectively	722	722
Additional paid-in capital	462,752	459,545
Accumulated other comprehensive loss	(2,647)	(1,526)
Retained earnings	354,926	350,545
Treasury stock, at cost; 49,958 and 49,277 shares, respectively	(662,354)	(642,023)
Total stockholders’ equity	153,399	167,263
Total liabilities and stockholders’ equity	$ 405,488	$ 381,125

UNAUDITED CONDENSED CONSOLIDA_3

UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Statement of Financial Position [Abstract]
Trade receivables, allowances	$ 4,375	$ 2,078
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	15,000,000	15,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	250,000,000	250,000,000
Common stock, shares issued (in shares)	72,198,000	72,202,000
Treasury stock, shares (in shares)	49,958,000	49,277,000

UNAUDITED CONDENSED CONSOLIDA_4

UNAUDITED CONDENSED CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS’ EQUITY - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Loss	Retained Earnings	Treasury Stock
Shares at beginning of period (in shares) at Dec. 31, 2018		71,856				45,822
Balance at beginning of period at Dec. 31, 2018	$ 168,331	$ 719	$ 447,337	$ 1,296	$ 237,308	$ (518,329)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	26,855				26,855
Reclassification of stranded tax effects	0			168	(168)
Issuance for stock-based compensation and dividends, net of forfeitures (in shares)		4
Issuance for stock-based compensation and dividends, net of forfeitures	0	$ 0	233		(233)
Stock-based compensation expense	2,620		2,620
Employee stock purchase plan (in shares)						(5)
Employee stock purchase plan	140		86			$ 54
Dividends	(4,406)				(4,406)
Change in fair value of interest rate swaps, net of tax	(280)			(280)
Repurchases of common stock (in shares)						432
Repurchases of common stock	(14,688)					$ (14,688)
Shares at end of period (in shares) at Mar. 31, 2019		71,860				46,249
Balance at end of period at Mar. 31, 2019	178,572	$ 719	450,276	1,184	259,356	$ (532,963)
Shares at beginning of period (in shares) at Dec. 31, 2019		72,202				49,277
Balance at beginning of period at Dec. 31, 2019	167,263	$ 722	459,545	(1,526)	350,545	$ (642,023)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	9,106				9,106
Issuance for stock-based compensation and dividends, net of forfeitures (in shares)		4
Issuance for stock-based compensation and dividends, net of forfeitures	0		218		(218)
Stock-based compensation expense	2,896		2,896
Employee stock purchase plan (in shares)						(4)
Employee stock purchase plan	142		93			$ 49
Dividends	(4,293)				(4,293)
Change in fair value of interest rate swaps, net of tax	(1,121)			(1,121)
Repurchases of common stock (in shares)						685
Repurchases of common stock	(20,380)					$ (20,380)
Shares at end of period (in shares) at Mar. 31, 2020		72,198				49,958
Balance at end of period at Mar. 31, 2020	$ 153,399	$ 722	$ 462,752	$ (2,647)	$ 354,926	$ (662,354)

UNAUDITED CONDENSED CONSOLIDA_5

UNAUDITED CONDENSED CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS’ EQUITY (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Statement of Stockholders' Equity [Abstract]
Cumulative effect on retained earnings, tax	$ 75
Dividend (in dollars per share)	$ 0.20	$ 0.18
Interest rate swap tax	$ (384)	$ (95)

UNAUDITED CONDENSED CONSOLIDA_6

UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Cash flows from operating activities:
Net income	$ 9,106	$ 26,855
Adjustments to reconcile net income to cash provided by operating activities:
Deferred income tax provision, net	(126)	(18,314)
Provision for credit losses	2,229	349
Depreciation and amortization	1,393	1,972
Stock-based compensation expense	2,896	2,620
Defined benefit pension plan expense	211	216
Loss on deferred compensation plan investments, net	39	89
Loss on disposal or impairment of assets	15	801
Noncash lease expense	1,521	1,662
Loss on equity method investment	595	0
Other	87	973
(Increase) decrease in operating assets
Trade receivables, net	(20,176)	(7,377)
Other assets, net	(452)	(393)
Increase (decrease) in operating liabilities
Accrued payroll costs	2,129	380
Other liabilities	3,538	1,956
Cash provided by operating activities	3,005	11,789
Cash flows from investing activities:
Capital expenditures	(1,971)	(1,496)
Other	0	(1,000)
Cash used in investing activities	(1,971)	(2,496)
Cash flows from financing activities:
Proceeds from credit facility	35,000	78,300
Payments on credit facility	0	(67,600)
Payments on other financing arrangements	(328)	(540)
Repurchases of common stock	(19,470)	(14,875)
Cash dividend	(4,293)	(4,406)
Other	0	(25)
Cash provided by (used in) financing activities	10,909	(9,146)
Change in cash and cash equivalents	11,943	147
Cash and cash equivalents, beginning of period	19,831	112
Cash and cash equivalents, end of period	31,774	259
Cash Paid During the Period For:
Income taxes	399	184
Operating lease liabilities	1,987	1,836
Interest, net	541	627
Non-Cash Investing and Financing Transactions:
ROU assets obtained from new operating leases	924	817
Unsettled repurchases of common stock	910	369
Employee stock purchase plan	$ 142	$ 140

Summary of Significant Accounti

Summary of Significant Accounting Policies	3 Months Ended
	Mar. 31, 2020
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies Unless otherwise noted below, there have been no material changes to the accounting policies presented in Note 1 - “Summary of Significant Accounting Policies” of the Notes to Consolidated Financial Statements, included in Item 8. Financial Statements and Supplementary Data of the 2019 Annual Report on Form 10-K. Basis of Presentation The unaudited condensed consolidated financial statements have been prepared pursuant to the rules and regulations of the SEC regarding interim financial reporting. Accordingly, certain information and footnotes normally required by GAAP for complete financial statements have been condensed or omitted pursuant to those rules and regulations, although Kforce believes that the disclosures made are adequate to make the information not misleading. These unaudited condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto included in our 2019 Annual Report on Form 10-K. In management’s opinion, the accompanying unaudited condensed consolidated financial statements reflect all adjustments considered necessary for a fair presentation. The Unaudited Condensed Consolidated Balance Sheet as of December 31, 2019 was derived from our audited Consolidated Balance Sheet as of December 31, 2019, as presented in our 2019 Annual Report on Form 10-K. Our quarterly operating results are affected by the number of billing days in a particular quarter, the seasonality of our clients’ businesses and increased holiday and vacation days taken. In addition, we typically experience an increase in costs in the first quarter of each fiscal year as a result of certain U.S. state and federal employment tax resets, which negatively impacts our gross profit and overall profitability. The results of operations for any interim period may be impacted by these factors, among others, and are not necessarily indicative of, nor comparable to, the results of operations for a full year. Principles of Consolidation The unaudited condensed consolidated financial statements include the accounts of Kforce Inc. and its 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 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 critical of these estimates and assumptions relate to the following: allowance for credit losses; variable consideration for revenue recognition; income taxes; self-insured liabilities for workers’ compensation and health insurance; obligations for the pension plan; and any asset impairments. Although these and other estimates and assumptions are based on the best available information, actual results could be materially different from these estimates. 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 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 three months ended March 31, 2020 and 2019, 307 thousand and 503 thousand common stock equivalents were included in the diluted WASO, respectively. For the three months ended March 31, 2020 and 2019, there were 332 thousand and 3 thousand anti-dilutive common stock equivalents, respectively. New Accounting Standards Recently Adopted Accounting Standards In June 2016, the FASB issued authoritative guidance on accounting for credit losses on financial instruments, including trade receivables, and has since issued subsequent updates to the initial guidance. The amended guidance requires the application of a current expected credit loss model, a new impairment model, which measures expected credit losses based on relevant information, including historical experience, current conditions and reasonable and supportable forecasts. The guidance is effective for annual periods beginning after December 15, 2019. We adopted this standard using the modified retrospective approach as of January 1, 2020, as required. Refer to Note E - “Allowance for Credit Losses” additional accounting policy and transition disclosures related to our allowance for credit losses. In March 2020, the FASB issued authoritative guidance, which provides optional expedients and exceptions for applying GAAP to contract modifications, hedging relationships, and other transactions that reference LIBOR and are affected by reference rate reform if certain criteria are met. Entities may adopt the provisions of the new standard as of the beginning of the reporting period when the election is made between March 12, 2020 through December 31, 2022. We adopted this optional standard effective January 1, 2020 using the prospective method, and utilized the optional expedients for cash flow hedges to assume that a hedged forecasted transaction is probable of occurring and that the reference rate will not be replaced for the remainder of a hedging relationship. Accounting Standards Not Yet Adopted In August 2018, the FASB issued authoritative guidance regarding changes to the disclosure requirement for defined benefit plans including additions and deletions to certain disclosure requirements for employers that sponsor defined benefit pension or other post-retirement plans. The guidance is effective for fiscal periods beginning after December 15, 2020 with the retrospective method required for all periods presented. The adoption of this guidance will modify our disclosures, but we do not expect this standard to have a material effect on our consolidated financial statements.

Discontinued Operations

Discontinued Operations	3 Months Ended
	Mar. 31, 2020
Discontinued Operations and Disposal Groups [Abstract]
Discontinued Operations	Discontinued Operations During 2019, management completed the sale of our Government Solutions (“GS”) segment as a result of the Firm’s decision to focus solely on the commercial technical and professional staffing services and solutions space. The GS segment consisted of Kforce Government Solutions, Inc. (“KGS”), our federal government solutions business, and TraumaFX® Solutions, Inc. (“TFX”), our federal government product business. The results of operations for both KGS and TFX have been reported as discontinued operations in our consolidated financial statements for all prior periods presented. The following table summarizes the line items of pretax profit of the GS segment for the three months ended March 31, 2019 (in thousands): Revenue $ 26,426 Direct costs 19,015 Gross profit 7,411 Selling, general and administrative expenses 5,432 Depreciation and amortization 235 Income from discontinued operations 1,744 Other expense, net 864 Income from discontinued operations, before income taxes 880 Income tax benefit (1) 18,001 Income from discontinued operations, net of tax $ 18,881 (1) During the three months ended March 31, 2019, we entered into a definitive agreement to sell KGS and recorded an increase of $18.5 million to deferred tax assets since it became apparent that the temporary difference for the excess of the outside tax basis in the equity of KGS over the amount of the inside basis in the assets of KGS would reverse in the foreseeable future. This deferred tax asset of $18.5 million was utilized and recorded as income tax expense during the three months ended June 30, 2019 when the divestiture was completed.

Reportable Segments

Reportable Segments	3 Months Ended
	Mar. 31, 2020
Segment Reporting [Abstract]
Reportable Segments	Reportable Segments Kforce provides services through our Technology (“Tech”) and Finance and Accounting (“FA”) segments. Historically, and for the three months ended March 31, 2020 and 2019, we have reported sales and gross profit information on a segment basis. Total assets, liabilities and operating expenses are not reported separately by segment as our operations are largely combined. The following table provides information on the operations of our segments (in thousands): Tech FA Total Three Months Ended March 31, 2020 Revenue $ 266,784 $ 68,424 $ 335,208 Gross profit $ 72,454 $ 22,070 $ 94,524 Operating and other expenses 81,990 Income from continuing operations, before income taxes $ 12,534 2019 Revenue $ 255,643 $ 71,095 $ 326,738 Gross profit $ 68,822 $ 24,354 $ 93,176 Operating and other expenses 82,386 Income from continuing operations, before income taxes $ 10,790

Disaggregation of Revenue

Disaggregation of Revenue	3 Months Ended
	Mar. 31, 2020
Revenue from Contract with Customer [Abstract]
Disaggregation of Revenue	Disaggregation of Revenue The following table provides the disaggregation of revenue by segment and type (in thousands): Tech FA Total Three Months Ended March 31, 2020 Revenue by type: Flex revenue $ 262,569 $ 63,540 $ 326,109 Direct Hire revenue 4,215 4,884 9,099 Total Revenue $ 266,784 $ 68,424 $ 335,208 2019 Revenue by type: Flex revenue $ 250,216 $ 64,765 $ 314,981 Direct Hire revenue 5,427 6,330 11,757 Total Revenue $ 255,643 $ 71,095 $ 326,738

Allowance for Credit Losses

Allowance for Credit Losses	3 Months Ended
	Mar. 31, 2020
Receivables [Abstract]
Credit Loss, Financial Instrument	Allowance for Credit Losses The allowance for credit losses on trade receivables is determined based on a number of factors such as recent and historical write-off and delinquency trends, a specific analysis of significant receivable balances that are past due, the concentration of receivables among clients and the current state of the U.S. economy. As part of our analysis, we apply credit loss rates to outstanding receivables by aging category. For certain clients, we perform a quarterly credit review, which considers the client’s credit rating and financial position as well as our total credit loss exposure. Trade receivables are written off after all reasonable collection efforts have been exhausted. Recoveries of trade receivables previously written off are recorded when received and are immaterial for the three months ended March 31, 2020. The following table presents the activity within the allowance for credit losses on trade receivables for the three months ended March 31, 2020 (in thousands): Allowance for credit losses, January 1, 2020 (1) $ 1,843 Current period provision 2,229 Write-offs charged against the allowance, net of recoveries of amounts previously written off (182) Allowance for credit losses, March 31, 2020 $ 3,890 (1) As a result of the adoption of the new credit losses accounting standard, we recorded a cumulative effect adjustment to increase the allowance for credit losses of $0.3 million as of January 1, 2020. The allowances on trade receivables presented in the Unaudited Condensed Consolidated Balance Sheets include $0.5 million at March 31, 2020 and December 31, 2019 for reserves unrelated to credit losses.

Other Assets, Net

Other Assets, Net	3 Months Ended
	Mar. 31, 2020
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Other Assets, Net	Other Assets, Net Other assets, net consisted of the following (in thousands): March 31, 2020 December 31, 2019 Assets held in Rabbi Trust $ 30,843 $ 35,413 Right-of-use assets for operating leases, net 17,606 18,344 Capitalized software, net (1) 9,841 8,759 Equity method investment (2) 7,574 8,169 Deferred loan costs, net 766 855 Other non-current assets 1,048 1,298 Total Other assets, net $ 67,678 $ 72,838 (1) Accumulated amortization of capitalized software was $34.4 million and $34.2 million as of March 31, 2020 and December 31, 2019, respectively. (2) In June 2019, Kforce entered into a joint venture resulting in a 50% noncontrolling interest in WorkLLama, LLC (“WorkLLama”), which is accounted for as an equity method investment. The loss on equity method investment was $0.6 million during the three months ended March 31, 2020. Refer to Note M - “Commitments and Contingencies” for more information on contingencies related to WorkLLama.

Current Liabilities

Current Liabilities	3 Months Ended
	Mar. 31, 2020
Payables and Accruals [Abstract]
Current Liabilities	Current Liabilities The following table provides information on certain current liabilities (in thousands): March 31, 2020 December 31, 2019 Accounts payable and other accrued liabilities: Accounts payable $ 23,918 $ 20,267 Accrued liabilities 13,207 12,965 Total Accounts payable and other accrued liabilities $ 37,125 $ 33,232 Accrued payroll costs: Payroll and benefits $ 40,141 $ 38,035 Health insurance liabilities 3,976 3,907 Payroll taxes 870 992 Workers’ compensation liabilities 1,001 1,067 Total Accrued payroll costs $ 45,988 $ 44,001 Our accounts payable balance includes vendor and independent contractor payables. Our accrued liabilities balance includes the current portion of the deferred compensation plans liability, contract liabilities from contracts with customers (such as rebates) and other accrued liabilities.

Other Long-Term Liabilities

Other Long-Term Liabilities	3 Months Ended
	Mar. 31, 2020
Other Liabilities Disclosure [Abstract]
Other Long-Term Liabilities	Other Long-Term Liabilities Other long-term liabilities consisted of the following (in thousands): March 31, 2020 December 31, 2019 Deferred compensation plan $ 24,044 $ 30,361 Supplemental executive retirement plan 18,290 18,080 Operating lease liabilities 14,235 14,627 Interest rate swap derivative instruments 1,684 179 Other long-term liabilities 542 651 Total Other long-term liabilities $ 58,795 $ 63,898

Employee Benefit Plans

Employee Benefit Plans	3 Months Ended
	Mar. 31, 2020
Retirement Benefits [Abstract]
Employee Benefit Plans	Employee Benefit Plans Supplemental Executive Retirement Plan Kforce maintains a Supplemental Executive Retirement Plan (“SERP”) for the benefit of two executives. The SERP is a non-qualified benefit plan and does not include elective deferrals of covered executive officers’ compensation. The following table presents the components of net periodic benefit cost (in thousands): Three Months Ended March 31, 2020 2019 Service cost $ 86 $ 65 Interest cost 125 151 Net periodic benefit cost $ 211 $ 216 The service cost is recorded in SG&A and the interest cost is recorded in Other expense, net in the accompanying Unaudited Condensed Consolidated Statements of Operations and Comprehensive Income.

Stock Incentive Plans

Stock Incentive Plans	3 Months Ended
	Mar. 31, 2020
Share-based Payment Arrangement [Abstract]
Stock Incentive Plans	Stock Incentive Plans On April 28, 2020, Kforce shareholders approved the 2020 Stock Incentive Plan (the “2020 Plan”). The 2020 Plan allows for the issuance of stock options, stock appreciation rights (“SAR”), stock awards (including restricted stock awards (“RSAs”) and restricted stock units (“RSUs”)) and other stock-based awards. The aggregate number of shares reserved under the 2020 Plan is approximately 3.6 million shares. Grants of an option or SAR reduce the reserve by one share, while a stock award reduces the reserve by 2.72 shares. The 2020 Plan terminates on April 28, 2030. Restricted stock (including RSAs and RSUs) are granted to directors, executives and management either for awards related to Kforce’s annual long-term incentive program or as part of a compensation package in order to retain directors, executives and management. The following table presents the restricted stock activity for the three months ended March 31, 2020 (in thousands, except per share amounts): Number of Weighted-Average Total Intrinsic Outstanding at December 31, 2019 1,180 $ 29.51 Granted 7 $ 29.60 Forfeited (12) $ 22.62 Vested (8) $ 22.15 $ 279 Outstanding at March 31, 2020 1,167 $ 29.63

Derivative Instrument and Hedgi

Derivative Instrument and Hedging Activity	3 Months Ended
	Mar. 31, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Instrument and Hedging Activity	Derivative Instruments and Hedging Activity On April 21, 2017, Kforce entered into a forward-starting interest rate swap agreement with Wells Fargo Bank, N.A (“Swap A”). Swap A was effective on May 31, 2017 and matures on April 29, 2022. Swap A has a fixed interest rate of 1.81% and a notional amount of $65.0 million at March 31, 2020, which decreases to $25.0 million in May 2020. On March 12, 2020, Kforce entered into a forward-starting interest rate swap agreement with Wells Fargo Bank, N.A. (“Swap B”). Swap B was effective on March 17, 2020 and matures on May 30, 2025. Swap B has a fixed interest rate of 0.61% and a notional amount of $35.0 million at March 31, 2020, which increases to $75.0 million and $100.0 million in May 2020 and May 2022, respectively, and subsequently decreases to $75.0 million and $40.0 million in May 2023 and May 2024, respectively. The increases in the notional amount of Swap B correspond to the decreases in the notional amount for Swap A. The Firm uses interest rate swaps as an interest rate risk management tool to mitigate the potential impact of rising interest rates on variable rate debt. The fixed interest rate for each swap, plus the applicable interest margin under our credit facility, is included in interest expense and recorded in Other expense, net in the accompanying Unaudited Condensed Consolidated Statements of Operations and Comprehensive Income. Both Swap A and B have been designated as cash flow hedges and were effective at March 31, 2020. The change in the fair value of the swaps is recorded as a component of other comprehensive income in the consolidated financial statements. The following table sets forth the activity in the accumulated derivative instrument activity (in thousands): Three Months Ended March 31, 2020 2019 Accumulated derivative instrument (loss) gain, beginning of period $ (179) $ 900 Net change associated with current period hedging transactions (1,505) (375) Accumulated derivative instrument (loss) gain, end of period $ (1,684) $ 525

Fair Value Measurements

Fair Value Measurements	3 Months Ended
	Mar. 31, 2020
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements Our interest rate swaps are measured at fair value using readily observable inputs, which are considered to be Level 2 inputs and are recorded in Other long-term liabilities within the accompanying Unaudited Condensed Consolidated Balance Sheets. Refer to Note K - “Derivative Instruments and Hedging Activity” for a complete discussion of our interest rate swaps. There were no transfers into or out of Level 1, 2 or 3 assets or liabilities during the three months ended March 31, 2020. The following table sets forth by level, within the fair value hierarchy, estimated fair values on a recurring basis (in thousands): Asset/(Liability) Measured at Fair Value: Asset/(Liability) Quoted Prices in Significant Significant At March 31, 2020 Interest rate swap derivative instruments $ (1,684) $ — $ (1,684) $ — At December 31, 2019 Interest rate swap derivative instrument $ (179) $ — $ (179) $ —

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2019
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Employment Agreements Kforce has employment agreements with certain executives that provide for minimum compensation, salary and continuation of certain benefits for a six three Litigation There have been no material developments with regard to any of the legal proceedings previously disclosed in our 2019 Annual Report on Form 10-K. We are involved in legal proceedings, claims and administrative matters that arise in the ordinary course of business. We have made accruals with respect to certain of these matters, where appropriate, that are reflected in our unaudited condensed consolidated financial statements but are not, individually or in the aggregate, considered material. Equity Method Investment Under the joint venture operating agreement for WorkLLama, Kforce is obligated to make additional cash contributions, which are contingent on WorkLLama's achievement of certain operational and financial milestones. Our maximum potential capital contributions were $22.5 million and we contributed $9.0 million during the year ended December 31, 2019. There is uncertainty as to the attainment of the milestones given the joint venture is in the early stages and at March 31, 2020, there are no contingent contributions recorded. Refer to Note F - “Other Assets, Net” for more details on WorkLLama.

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2020
Accounting Policies [Abstract]
Basis of Presentation	The unaudited condensed consolidated financial statements have been prepared pursuant to the rules and regulations of the SEC regarding interim financial reporting. Accordingly, certain information and footnotes normally required by GAAP for complete financial statements have been condensed or omitted pursuant to those rules and regulations, although Kforce believes that the disclosures made are adequate to make the information not misleading. These unaudited condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto included in our 2019 Annual Report on Form 10-K. In management’s opinion, the accompanying unaudited condensed consolidated financial statements reflect all adjustments considered necessary for a fair presentation. The Unaudited Condensed Consolidated Balance Sheet as of December 31, 2019 was derived from our audited Consolidated Balance Sheet as of December 31, 2019, as presented in our 2019 Annual Report on Form 10-K.
Principles of Consolidation	The unaudited condensed consolidated financial statements include the accounts of Kforce Inc. and its 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 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 critical of these estimates and assumptions relate to the following: allowance for credit losses; variable consideration for revenue recognition; income taxes; self-insured liabilities for workers’ compensation and health insurance; obligations for the pension plan; and any asset impairments. Although these and other estimates and assumptions are based on the best available information, actual results could be materially different from these estimates.
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 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.
New Accounting Standards, Recently Adopted and Accounting Standards Not Yet Adopted	Recently Adopted Accounting Standards In June 2016, the FASB issued authoritative guidance on accounting for credit losses on financial instruments, including trade receivables, and has since issued subsequent updates to the initial guidance. The amended guidance requires the application of a current expected credit loss model, a new impairment model, which measures expected credit losses based on relevant information, including historical experience, current conditions and reasonable and supportable forecasts. The guidance is effective for annual periods beginning after December 15, 2019. We adopted this standard using the modified retrospective approach as of January 1, 2020, as required. Refer to Note E - “Allowance for Credit Losses” additional accounting policy and transition disclosures related to our allowance for credit losses. In March 2020, the FASB issued authoritative guidance, which provides optional expedients and exceptions for applying GAAP to contract modifications, hedging relationships, and other transactions that reference LIBOR and are affected by reference rate reform if certain criteria are met. Entities may adopt the provisions of the new standard as of the beginning of the reporting period when the election is made between March 12, 2020 through December 31, 2022. We adopted this optional standard effective January 1, 2020 using the prospective method, and utilized the optional expedients for cash flow hedges to assume that a hedged forecasted transaction is probable of occurring and that the reference rate will not be replaced for the remainder of a hedging relationship. Accounting Standards Not Yet Adopted In August 2018, the FASB issued authoritative guidance regarding changes to the disclosure requirement for defined benefit plans including additions and deletions to certain disclosure requirements for employers that sponsor defined benefit pension or other post-retirement plans. The guidance is effective for fiscal periods beginning after December 15, 2020 with the retrospective method required for all periods presented. The adoption of this guidance will modify our disclosures, but we do not expect this standard to have a material effect on our consolidated financial statements.

Discontinued Operations (Tables

Discontinued Operations (Tables)	3 Months Ended
	Mar. 31, 2020
Discontinued Operations and Disposal Groups [Abstract]
Schedule of Pretax Profit for GS Segment	The following table summarizes the line items of pretax profit of the GS segment for the three months ended March 31, 2019 (in thousands): Revenue $ 26,426 Direct costs 19,015 Gross profit 7,411 Selling, general and administrative expenses 5,432 Depreciation and amortization 235 Income from discontinued operations 1,744 Other expense, net 864 Income from discontinued operations, before income taxes 880 Income tax benefit (1) 18,001 Income from discontinued operations, net of tax $ 18,881 (1) During the three months ended March 31, 2019, we entered into a definitive agreement to sell KGS and recorded an increase of $18.5 million to deferred tax assets since it became apparent that the temporary difference for the excess of the outside tax basis in the equity of KGS over the amount of the inside basis in the assets of KGS would reverse in the foreseeable future. This deferred tax asset of $18.5 million was utilized and recorded as income tax expense during the three months ended June 30, 2019 when the divestiture was completed.

Reportable Segments (Tables)

Reportable Segments (Tables)	3 Months Ended
	Mar. 31, 2020
Segment Reporting [Abstract]
Operations of Segments	The following table provides information on the operations of our segments (in thousands): Tech FA Total Three Months Ended March 31, 2020 Revenue $ 266,784 $ 68,424 $ 335,208 Gross profit $ 72,454 $ 22,070 $ 94,524 Operating and other expenses 81,990 Income from continuing operations, before income taxes $ 12,534 2019 Revenue $ 255,643 $ 71,095 $ 326,738 Gross profit $ 68,822 $ 24,354 $ 93,176 Operating and other expenses 82,386 Income from continuing operations, before income taxes $ 10,790

Disaggregation of Revenue (Tabl

Disaggregation of Revenue (Tables)	3 Months Ended
	Mar. 31, 2020
Revenue from Contract with Customer [Abstract]
Disaggregation of Revenues	The following table provides the disaggregation of revenue by segment and type (in thousands): Tech FA Total Three Months Ended March 31, 2020 Revenue by type: Flex revenue $ 262,569 $ 63,540 $ 326,109 Direct Hire revenue 4,215 4,884 9,099 Total Revenue $ 266,784 $ 68,424 $ 335,208 2019 Revenue by type: Flex revenue $ 250,216 $ 64,765 $ 314,981 Direct Hire revenue 5,427 6,330 11,757 Total Revenue $ 255,643 $ 71,095 $ 326,738

Allowance for Credit Losses (Ta

Allowance for Credit Losses (Tables)	3 Months Ended
	Mar. 31, 2020
Receivables [Abstract]
Schedule of Allowance for Credit Losses	The following table presents the activity within the allowance for credit losses on trade receivables for the three months ended March 31, 2020 (in thousands): Allowance for credit losses, January 1, 2020 (1) $ 1,843 Current period provision 2,229 Write-offs charged against the allowance, net of recoveries of amounts previously written off (182) Allowance for credit losses, March 31, 2020 $ 3,890 (1) As a result of the adoption of the new credit losses accounting standard, we recorded a cumulative effect adjustment to increase the allowance for credit losses of $0.3 million as of January 1, 2020. The allowances on trade receivables presented in the Unaudited Condensed Consolidated Balance Sheets include $0.5 million at March 31, 2020 and December 31, 2019 for reserves unrelated to credit losses.

Other Assets, Net (Tables)

Other Assets, Net (Tables)	3 Months Ended
	Mar. 31, 2020
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Schedule of Other Assets, Net	Other assets, net consisted of the following (in thousands): March 31, 2020 December 31, 2019 Assets held in Rabbi Trust $ 30,843 $ 35,413 Right-of-use assets for operating leases, net 17,606 18,344 Capitalized software, net (1) 9,841 8,759 Equity method investment (2) 7,574 8,169 Deferred loan costs, net 766 855 Other non-current assets 1,048 1,298 Total Other assets, net $ 67,678 $ 72,838 (1) Accumulated amortization of capitalized software was $34.4 million and $34.2 million as of March 31, 2020 and December 31, 2019, respectively. (2) In June 2019, Kforce entered into a joint venture resulting in a 50% noncontrolling interest in WorkLLama, LLC (“WorkLLama”), which is accounted for as an equity method investment. The loss on equity method investment was $0.6 million during the three months ended March 31, 2020. Refer to Note M - “Commitments and Contingencies” for more information on contingencies related to WorkLLama.

Current Liabilities (Tables)

Current Liabilities (Tables)	3 Months Ended
	Mar. 31, 2020
Payables and Accruals [Abstract]
Schedule of Accounts Payable and Accrued Liabilities	The following table provides information on certain current liabilities (in thousands): March 31, 2020 December 31, 2019 Accounts payable and other accrued liabilities: Accounts payable $ 23,918 $ 20,267 Accrued liabilities 13,207 12,965 Total Accounts payable and other accrued liabilities $ 37,125 $ 33,232 Accrued payroll costs: Payroll and benefits $ 40,141 $ 38,035 Health insurance liabilities 3,976 3,907 Payroll taxes 870 992 Workers’ compensation liabilities 1,001 1,067 Total Accrued payroll costs $ 45,988 $ 44,001

Other Long-Term Liabilities (Ta

Other Long-Term Liabilities (Tables)	3 Months Ended
	Mar. 31, 2020
Other Liabilities Disclosure [Abstract]
Schedule of Other Long-Term Liabilities	Other long-term liabilities consisted of the following (in thousands): March 31, 2020 December 31, 2019 Deferred compensation plan $ 24,044 $ 30,361 Supplemental executive retirement plan 18,290 18,080 Operating lease liabilities 14,235 14,627 Interest rate swap derivative instruments 1,684 179 Other long-term liabilities 542 651 Total Other long-term liabilities $ 58,795 $ 63,898

Employee Benefit Plans (Tables)

Employee Benefit Plans (Tables)	3 Months Ended
	Mar. 31, 2020
Retirement Benefits [Abstract]
Components of Net Periodic Benefit Cost	The following table presents the components of net periodic benefit cost (in thousands): Three Months Ended March 31, 2020 2019 Service cost $ 86 $ 65 Interest cost 125 151 Net periodic benefit cost $ 211 $ 216

Stock Incentive Plans (Tables)

Stock Incentive Plans (Tables)	3 Months Ended
	Mar. 31, 2020
Share-based Payment Arrangement [Abstract]
Summary of Restricted Stock Activity	The following table presents the restricted stock activity for the three months ended March 31, 2020 (in thousands, except per share amounts): Number of Weighted-Average Total Intrinsic Outstanding at December 31, 2019 1,180 $ 29.51 Granted 7 $ 29.60 Forfeited (12) $ 22.62 Vested (8) $ 22.15 $ 279 Outstanding at March 31, 2020 1,167 $ 29.63

Derivative Instrument and Hed_2

Derivative Instrument and Hedging Activity (Tables)	3 Months Ended
	Mar. 31, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Activity in the Accumulated Derivative Instrument Gain	The following table sets forth the activity in the accumulated derivative instrument activity (in thousands): Three Months Ended March 31, 2020 2019 Accumulated derivative instrument (loss) gain, beginning of period $ (179) $ 900 Net change associated with current period hedging transactions (1,505) (375) Accumulated derivative instrument (loss) gain, end of period $ (1,684) $ 525

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	3 Months Ended
	Mar. 31, 2020
Fair Value Disclosures [Abstract]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis	The following table sets forth by level, within the fair value hierarchy, estimated fair values on a recurring basis (in thousands): Asset/(Liability) Measured at Fair Value: Asset/(Liability) Quoted Prices in Significant Significant At March 31, 2020 Interest rate swap derivative instruments $ (1,684) $ — $ (1,684) $ — At December 31, 2019 Interest rate swap derivative instrument $ (179) $ — $ (179) $ —

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Details) - shares shares in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Accounting Policies [Abstract]
Common stock equivalents (in shares)	307	503
Anti-dilutive common stock equivalents (in shares)	332	3

Discontinued Operations - Narra

Discontinued Operations - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Jun. 30, 2019	Mar. 31, 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income tax expense	$ 3,428		$ 2,816
Discontinued Operations, Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash provided by (used in) operating activities for discontinued operations	5,700
Cash provided by (used in) investing activities for discontinued operations	$ (100)
Discontinued Operations, Disposed of by Sale | Kforce Government Solutions, Inc.("KGS")
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Increase in deferred tax assets			$ 18,500
Discontinued Operation, Tax Effect of Discontinued Operation		$ 18,500

Discontinued Operations - Summa

Discontinued Operations - Summary of Pretax Profit (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Jun. 30, 2019	Mar. 31, 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income from discontinued operations, net of tax	$ 0		$ 18,881
Discontinued Operations, Disposed of by Sale | GS segment
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue			26,426
Direct costs			19,015
Gross profit			7,411
Selling, general and administrative expenses			5,432
Depreciation and amortization			235
Income from discontinued operations			1,744
Other expense, net			(864)
Income from discontinued operations, before income taxes			880
Income tax benefit			18,001
Income from discontinued operations, net of tax			$ 18,881
Discontinued Operations, Disposed of by Sale | Kforce Government Solutions, Inc.("KGS")
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income tax benefit		$ (18,500)

Reportable Segments - Schedule

Reportable Segments - Schedule (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Segment Reporting Information [Line Items]
Revenue	$ 335,208	$ 326,738
Gross profit	94,524	93,176
Operating and other expenses	81,990	82,386
Income from continuing operations, before income taxes	12,534	10,790
Tech
Segment Reporting Information [Line Items]
Revenue	266,784	255,643
Gross profit	72,454	68,822
FA
Segment Reporting Information [Line Items]
Revenue	68,424	71,095
Gross profit	$ 22,070	$ 24,354

Disaggregation of Revenue (Deta

Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Disaggregation of Revenue [Line Items]
Total Revenue	$ 335,208	$ 326,738
Flex revenue
Disaggregation of Revenue [Line Items]
Total Revenue	326,109	314,981
Direct Hire revenue
Disaggregation of Revenue [Line Items]
Total Revenue	9,099	11,757
Tech
Disaggregation of Revenue [Line Items]
Total Revenue	266,784	255,643
Tech | Flex revenue
Disaggregation of Revenue [Line Items]
Total Revenue	262,569	250,216
Tech | Direct Hire revenue
Disaggregation of Revenue [Line Items]
Total Revenue	4,215	5,427
FA
Disaggregation of Revenue [Line Items]
Total Revenue	68,424	71,095
FA | Flex revenue
Disaggregation of Revenue [Line Items]
Total Revenue	63,540	64,765
FA | Direct Hire revenue
Disaggregation of Revenue [Line Items]
Total Revenue	$ 4,884	$ 6,330

Allowance for Credit Losses (De

Allowance for Credit Losses (Details) - USD ($) $ in Thousands	Jan. 01, 2020	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit losses, beginning balance	$ 1,843	$ 1,843
Provision for credit losses		2,229	$ 349
Write-offs charged against the allowance, net of recoveries of amounts previously written off		(182)
Allowance for credit losses, ending balance		3,890
Reserves unrelated to credit losses		$ 500		$ 500
Accounting Standards Update 2016-13
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Cumulative effect on retained earnings, before tax	$ 300

Other Assets, Net (Details)

Other Assets, Net (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019	Jun. 30, 2019
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Assets held in Rabbi Trust	$ 30,843		$ 35,413
Right-of-use assets for operating leases, net	17,606		18,344
Equity method investment	7,574		8,169
Capitalized software, net	9,841		8,759
Deferred loan costs, net	766		855
Other non-current assets	1,048		1,298
Total Other assets, net	67,678		72,838
Accumulated amortization of capitalized software	34,400		$ 34,200
Schedule of Equity Method Investments [Line Items]
Loss on equity method investment	(595)	$ 0
WorkLLama
Schedule of Equity Method Investments [Line Items]
Percent ownership of equity method investment				50.00%
Loss on equity method investment	$ 600

Current Liabilities (Details)

Current Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Accounts payable and other accrued liabilities:
Accounts payable	$ 23,918	$ 20,267
Accrued liabilities	13,207	12,965
Total Accounts payable and other accrued liabilities	37,125	33,232
Accrued payroll costs:
Payroll and benefits	40,141	38,035
Health insurance liabilities	3,976	3,907
Payroll taxes	870	992
Workers’ compensation liabilities	1,001	1,067
Total Accrued payroll costs	$ 45,988	$ 44,001

Other Long-Term Liabilities (De

Other Long-Term Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Other Liabilities Disclosure [Abstract]
Deferred compensation plan	$ 24,044	$ 30,361
Supplemental executive retirement plan	18,290	18,080
Operating lease liabilities	14,235	14,627
Interest rate swap derivative instruments	1,684	179
Other long-term liabilities	542	651
Total Other long-term liabilities	$ 58,795	$ 63,898

Employee Benefit Plans - Compon

Employee Benefit Plans - Components of Net Periodic Benefit Cost (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Retirement Benefits [Abstract]
Service cost	$ 86	$ 65
Interest cost	125	151
Net periodic benefit cost	$ 211	$ 216

Employee Benefit Plans - Additi

Employee Benefit Plans - Additional Information (Details) - USD ($)	3 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Retirement Benefits [Abstract]
Supplemental executive retirement plan	$ 18,290,000	$ 18,080,000
Employer contributions to benefit plans	0
Expected funding of the SERP in the current year	$ 0

Stock Incentive Plans - Additio

Stock Incentive Plans - Additional Information (Details) - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Apr. 28, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 2.9	$ 2.5
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total unrecognized compensation expenses	$ 29
Weighted average period expected to be recognized	3 years 3 months 18 days
2020 Plan | Subsequent Event
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for grant (in shares)			3.6

Stock Incentive Plans - Summary

Stock Incentive Plans - Summary of Restricted Stock Activity (Details) - Restricted Stock $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2020USD ($)$ / sharesshares
Number of Restricted Stock
Outstanding, at beginning of period (in shares) | shares	1,180
Granted (in shares) | shares	7
Forfeited (in shares) | shares	(12)
Vested (in shares) | shares	(8)
Outstanding, at end of period (in shares) | shares	1,167
Weighted Average Grant Date Fair Value
Outstanding, as of beginning of period (in dollars per share) | $ / shares	$ 29.51
Granted (in dollars per share) | $ / shares	29.60
Forfeited (in dollars per share) | $ / shares	22.62
Vested (in dollars per share) | $ / shares	22.15
Outstanding, as of end of period (in dollars per share) | $ / shares	$ 29.63
Total Intrinsic Value of Restricted Stock Vested
Vested | $	$ 279

Derivative Instrument and Hed_3

Derivative Instrument and Hedging Activity - Narrative (Details) - Designated as Hedging Instrument - USD ($)	May 31, 2024	May 31, 2023	May 31, 2022	May 31, 2020	Mar. 31, 2020	Mar. 17, 2020	May 31, 2017
Interest Rate Swap A
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative rate							1.81%
Derivative, notional amount					$ 65,000,000
Interest Rate Swap A | Scenario, Forecast
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, notional amount				$ 25,000,000
Interest Rate Swap B
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative rate						0.61%
Derivative, notional amount					$ 35,000,000
Interest Rate Swap B | Scenario, Forecast
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, notional amount	$ 40,000,000	$ 75,000,000	$ 100,000,000	$ 75,000,000

Derivative Instrument and Hed_4

Derivative Instrument and Hedging Activity - Accumulated Derivative Instrument Gain (Loss) Activity (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning of period	$ 167,263	$ 168,331
Balance at end of period	153,399	178,572
Accumulated Derivative Instrument Gain
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning of period	(179)	900
Net change associated with current period hedging transactions	(1,505)	(375)
Balance at end of period	$ (1,684)	$ 525

Fair Value Measurements - Sched

Fair Value Measurements - Schedule of Estimated Fair Values (Details) - Recurring Basis - Interest Rate Swap - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swap derivative instruments	$ (1,684)	$ (179)
Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swap derivative instruments	0	0
Significant Other Observable Inputs  (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swap derivative instruments	(1,684)	(179)
Significant Unobservable Inputs  (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swap derivative instruments	$ 0	$ 0

Commitments and Contingencies (

Commitments and Contingencies (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Other Commitments [Line Items]
Unemployment benefits, possible liability with a change in control	$ 39.7
Unemployment benefits, possible liability without a change in control	$ 16.8
WorkLLama
Other Commitments [Line Items]
Maximum potential capital contributions		$ 22.5
Payments to acquire equity method investment		$ 9
Minimum
Other Commitments [Line Items]
Period for providing minimum compensation salary and continuation of certain benefits to executives under employment agreements	6 months
Severance payment as a percentage of annual salary	100.00%
Severance payment as a percentage of annual bonus	50.00%
Maximum
Other Commitments [Line Items]
Period for providing minimum compensation salary and continuation of certain benefits to executives under employment agreements	3 years
Severance payment as a percentage of annual salary	300.00%
Severance payment as a percentage of annual bonus	300.00%

Uncategorized Items - kfrc-2020

Label	Element	Value
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	$ (214,000)
Retained Earnings [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	$ (214,000)