$KFRC
KFORCE INC Stock $kfrc

$kfrc Overview Financials Valuation SEC Filings Company Website

2018 Q4 Form 10-K Financial Statement

#000093042019000034 Filed on February 22, 2019

Income Statement

Concept	2018 Q4	2017 Q4	2017 Q3
Revenue	$330.4M	$342.6M	$341.1M
YoY Change	-3.56%	5.09%	1.37%
Cost Of Revenue	$232.7M	$168.1M	$236.7M
YoY Change	38.43%	-25.75%	2.42%
Gross Profit	$97.71M	$102.6M	$104.4M
YoY Change	-4.79%	2.99%	-0.95%
Gross Profit Margin	29.58%	29.96%	30.6%
Selling, General & Admin	$77.20M	$59.20M	$81.92M
YoY Change	30.41%	-27.89%	-6.7%
% of Gross Profit	79.01%	57.68%	78.49%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$2.100M	$2.100M	$2.200M
YoY Change	0.0%	0.0%	4.76%
% of Gross Profit	2.15%	2.05%	2.11%
Operating Expenses	$78.80M	$60.30M	$85.40M
YoY Change	30.68%	-28.3%	-5.8%
Operating Profit	$18.91M	$42.33M	$20.34M
YoY Change	-55.32%	172.23%	31.23%
Interest Expense	-$900.0K	-$1.200M	-$1.300M
YoY Change	-25.0%	-126.67%	62.5%
% of Operating Profit	-4.76%	-2.84%	-6.39%
Other Income/Expense, Net	$0.00	$0.00	-$1.364M
YoY Change		-100.0%	75.32%
Pretax Income	$18.00M	$8.700M	$18.98M
YoY Change	106.9%	-41.22%	28.91%
Income Tax	$4.400M	$900.0K	$8.881M
% Of Pretax Income	24.44%	10.34%	46.79%
Net Earnings	$16.36M	$6.140M	$10.10M
YoY Change	166.38%	-33.54%	11.96%
Net Earnings / Revenue	4.95%	1.79%	2.96%
Basic Earnings Per Share	$0.66	$0.25	$0.40
Diluted Earnings Per Share	$0.65	$0.24	$0.40
COMMON SHARES
Basic Shares Outstanding	26.07M shares	26.47M shares	25.30M shares
Diluted Shares Outstanding			25.54M shares

Balance Sheet

Concept	2018 Q4	2017 Q4	2017 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$100.0K	$400.0K	$700.0K
YoY Change	-75.0%	-73.33%	-22.22%
Cash & Equivalents	$112.0K	$379.0K	$703.0K
Short-Term Investments
Other Short-Term Assets	$37.50M	$12.10M	$12.70M
YoY Change	209.92%	13.08%	-23.49%
Inventory
Prepaid Expenses
Receivables	$210.6M	$225.9M	$243.8M
Other Receivables	$300.0K	$7.100M	$1.900M
Total Short-Term Assets	$248.5M	$245.4M	$259.1M
YoY Change	1.23%	12.23%	13.77%
LONG-TERM ASSETS
Property, Plant & Equipment	$34.32M	$39.68M	$40.65M
YoY Change	-13.5%	-8.03%	-4.02%
Goodwill	$25.04M	$25.04M	$45.97M
YoY Change	0.0%	-45.53%	0.0%
Intangibles	$2.952M	$3.297M	$3.384M
YoY Change	-10.46%	-9.47%	-9.25%
Long-Term Investments	$0.00
YoY Change
Other Assets	$36.66M	$38.60M	$37.27M
YoY Change	-5.01%	26.51%	25.93%
Total Long-Term Assets	$131.4M	$138.9M	$147.1M
YoY Change	-5.34%	-5.35%	4.44%
TOTAL ASSETS
Total Short-Term Assets	$248.5M	$245.4M	$259.1M
Total Long-Term Assets	$131.4M	$138.9M	$147.1M
Total Assets	$379.9M	$384.3M	$406.2M
YoY Change	-1.14%	5.17%	10.21%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$18.79M	$21.59M	$19.29M
YoY Change	-12.96%	6.25%	-46.57%
Accrued Expenses	$13.75M	$13.28M	$15.19M
YoY Change	3.52%	-21.45%	-71.01%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$90.36M	$83.72M	$87.98M
YoY Change	7.93%	0.44%	-3.79%
LONG-TERM LIABILITIES
Long-Term Debt	$73.20M	$119.1M	$128.9M
YoY Change	-38.54%	3.12%	22.76%
Other Long-Term Liabilities	$44.87M	$47.19M	$47.06M
YoY Change	-4.92%	5.33%	9.07%
Total Long-Term Liabilities	$44.87M	$47.19M	$47.06M
YoY Change	-4.92%	5.33%	9.07%
TOTAL LIABILITIES
Total Short-Term Liabilities	$90.36M	$83.72M	$87.98M
Total Long-Term Liabilities	$44.87M	$47.19M	$47.06M
Total Liabilities	$211.6M	$250.0M	$263.9M
YoY Change	-15.38%	2.6%	10.16%
SHAREHOLDERS EQUITY
Retained Earnings	$237.3M	$195.1M	$192.2M
YoY Change	21.61%	11.53%	13.76%
Common Stock	$719.0K	$715.0K	$712.0K
YoY Change	0.56%	0.28%	0.42%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$518.3M	$499.1M	$485.7M
YoY Change	3.86%	3.47%	3.95%
Treasury Stock Shares	45.82M shares	45.17M shares	44.62M shares
Shareholders Equity	$168.3M	$134.3M	$142.3M
YoY Change
Total Liabilities & Shareholders Equity	$379.9M	$384.3M	$406.2M
YoY Change	-1.14%	5.17%	10.21%

Cashflow Statement

Concept	2018 Q4	2017 Q4	2017 Q3
OPERATING ACTIVITIES
Net Income	$16.36M	$6.140M	$10.10M
YoY Change	166.38%	-33.54%	11.96%
Depreciation, Depletion And Amortization	$2.100M	$2.100M	$2.200M
YoY Change	0.0%	0.0%	4.76%
Cash From Operating Activities	$23.00M	$23.70M	$100.0K
YoY Change	-2.95%	134.65%	-99.27%
INVESTING ACTIVITIES
Capital Expenditures	-$1.200M	-$400.0K	-$1.100M
YoY Change	200.0%	-86.67%	-82.26%
Acquisitions
YoY Change
Other Investing Activities	$0.00	$0.00	$1.000M
YoY Change
Cash From Investing Activities	-$1.200M	-$400.0K	-$100.0K
YoY Change	200.0%	-86.67%	-98.39%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-22.20M	-23.60M	-2.900M
YoY Change	-5.93%	257.58%	-61.84%
NET CHANGE
Cash From Operating Activities	23.00M	23.70M	100.0K
Cash From Investing Activities	-1.200M	-400.0K	-100.0K
Cash From Financing Activities	-22.20M	-23.60M	-2.900M
Net Change In Cash	-400.0K	-300.0K	-2.900M
YoY Change	33.33%	-160.0%	2800.0%
FREE CASH FLOW
Cash From Operating Activities	$23.00M	$23.70M	$100.0K
Capital Expenditures	-$1.200M	-$400.0K	-$1.100M
Free Cash Flow	$24.20M	$24.10M	$1.200M
YoY Change	0.41%	83.97%	-93.97%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2018	dei	Amendment Flag AmendmentFlag	false
CY2018	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2018	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2018	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2018
CY2018	dei	Document Period End Date DocumentPeriodEndDate	2018-12-31
CY2018	dei	Entity Central Index Key EntityCentralIndexKey	0000930420
CY2018	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2018	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2018	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2018Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	250000000	shares
CY2018	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No
CY2017	kfrc	Accounts Receivable Reserves As Percentage Of Gross Accounts Receivable AccountsReceivableReservesAsPercentageOfGrossAccountsReceivable	0.010
CY2017Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	2333000	USD
CY2018	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2018Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	2800000	USD
CY2018	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0	shares
CY2018	dei	Entity Shell Company EntityShellCompany	false
CY2018	dei	Entity Small Business EntitySmallBusiness	false
CY2018Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2017Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	250000000	shares
CY2017Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2017Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	71494000	shares
CY2018Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	71856000	shares
CY2018Q4	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	0	USD
CY2018Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	0	USD
CY2017Q4	us-gaap	Deferred Compensation Liability Classified Noncurrent DeferredCompensationLiabilityClassifiedNoncurrent	28900000	USD
CY2016Q4	us-gaap	Goodwill Goodwill	45968000	USD
CY2016Q4	us-gaap	Goodwill Gross GoodwillGross	280753000	USD
CY2017Q4	us-gaap	Goodwill Gross GoodwillGross	280753000	USD
CY2016Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	234785000	USD
CY2017Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	234785000	USD
CY2016	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2017	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2016	us-gaap	Impairment Of Intangible Assets Excluding Goodwill ImpairmentOfIntangibleAssetsExcludingGoodwill	0	USD
CY2017	us-gaap	Impairment Of Intangible Assets Excluding Goodwill ImpairmentOfIntangibleAssetsExcludingGoodwill	0	USD
CY2016	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	7700000	USD
CY2017	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	7700000	USD
CY2017	us-gaap	Pension Contributions PensionContributions	0	USD
CY2017Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2018Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2017Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	15000000	shares
CY2018Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	15000000	shares
CY2017Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2018Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2017Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2018Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2016	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	0	USD
CY2017	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	0	USD
CY2017Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	45167000	shares
CY2018Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	45822000	shares
CY2018	dei	Document Type DocumentType	10-K
CY2018	dei	Entity Registrant Name EntityRegistrantName	KFORCE INC
CY2018Q2	dei	Entity Public Float EntityPublicFloat	786439764	USD
CY2019Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	25848178	shares
CY2018	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1418353000	USD
CY2018	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	329126000	USD
CY2018	us-gaap	Cost Of Revenue CostOfRevenue	999745000	USD
CY2017	us-gaap	Cost Of Revenue CostOfRevenue	949884000	USD
CY2016	us-gaap	Operating Income Loss OperatingIncomeLoss	59056000	USD
CY2016	us-gaap	Cost Of Revenue CostOfRevenue	911207000	USD
CY2018	us-gaap	Gross Profit GrossProfit	418608000	USD
CY2017	us-gaap	Gross Profit GrossProfit	408056000	USD
CY2016	us-gaap	Gross Profit GrossProfit	408499000	USD
CY2016	us-gaap	Depreciation And Amortization DepreciationAndAmortization	8701000	USD
CY2017	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	331172000	USD
CY2018	us-gaap	Operating Income Loss OperatingIncomeLoss	81651000	USD
CY2017	us-gaap	Operating Income Loss OperatingIncomeLoss	68629000	USD
CY2016	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	340742000	USD
CY2017	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1357940000	USD
CY2016	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1319706000	USD
CY2018	us-gaap	Depreciation And Amortization DepreciationAndAmortization	7831000	USD
CY2017	us-gaap	Depreciation And Amortization DepreciationAndAmortization	8255000	USD
CY2018	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-4498000	USD
CY2017	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-4535000	USD
CY2016	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-3101000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	77153000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	64094000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	55955000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	19173000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	30809000	USD
CY2016	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	23182000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	57980000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	33285000	USD
CY2016	us-gaap	Net Income Loss NetIncomeLoss	32773000	USD
CY2018	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	-881000	USD
CY2017	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	373000	USD
CY2016	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	134000	USD
CY2018	us-gaap	Other Comprehensive Income Derivatives Qualifying As Hedges Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPortionAttributableToParent	315000	USD
CY2017	us-gaap	Other Comprehensive Income Derivatives Qualifying As Hedges Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPortionAttributableToParent	289000	USD
CY2016	us-gaap	Other Comprehensive Income Derivatives Qualifying As Hedges Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPortionAttributableToParent	0	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	59176000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	33201000	USD
CY2016	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	32639000	USD
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CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	24738000	shares
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	25222000	shares
CY2016	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	26099000	shares
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	25251000	shares
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	25586000	shares
CY2016	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	26274000	shares
CY2018	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.60
CY2017	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.48
CY2016	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.48
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	112000	USD
CY2018Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
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CY2018Q4	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	319000	USD
CY2017Q4	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	7116000	USD
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CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	35818000	USD
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CY2018Q4	us-gaap	Goodwill Goodwill	45968000	USD
CY2017Q4	us-gaap	Goodwill Goodwill	45968000	USD
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CY2017Q4	us-gaap	Assets Assets	384304000	USD
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CY2017Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	1960000	USD
CY2018Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	4858000	USD
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CY2018Q4	us-gaap	Liabilities Current LiabilitiesCurrent	90358000	USD
CY2017Q4	us-gaap	Liabilities Current LiabilitiesCurrent	83719000	USD
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CY2017Q4	us-gaap	Liabilities Liabilities	250027000	USD
CY2018Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2017Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2018Q4	us-gaap	Common Stock Value CommonStockValue	719000	USD
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CY2018Q4	us-gaap	Treasury Stock Value TreasuryStockValue	518329000	USD
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CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	168331000	USD
CY2017Q4	us-gaap	Stockholders Equity StockholdersEquity	134277000	USD
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CY2017Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	384304000	USD
CY2015Q4	us-gaap	Stockholders Equity StockholdersEquity	139627000	USD
CY2016	us-gaap	Net Income Loss NetIncomeLoss	32773000	USD
CY2016	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	0	USD
CY2016	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	109000	USD
CY2016	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	6705000	USD
CY2016	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	307000	USD
CY2016	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	669000	USD
CY2016	us-gaap	Dividends Common Stock DividendsCommonStock	12447000	USD
CY2016	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	134000	USD
CY2016	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	45873000	USD
CY2016Q4	us-gaap	Stockholders Equity StockholdersEquity	121736000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	33285000	USD
CY2017	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	0	USD
CY2017	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	72000	USD
CY2017	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	7600000	USD
CY2017	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	522000	USD
CY2017	us-gaap	Dividends Common Stock DividendsCommonStock	12144000	USD
CY2017	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	373000	USD
CY2017	us-gaap	Other Comprehensive Income Derivatives Qualifying As Hedges Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPortionAttributableToParent	289000	USD
CY2017	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	17010000	USD
CY2017Q4	us-gaap	Stockholders Equity StockholdersEquity	134277000	USD
CY2017Q4	us-gaap	Stockholders Equity StockholdersEquity	134277000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	57980000	USD
CY2018	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	0	USD
CY2018	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	0	USD
CY2018	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	8797000	USD
CY2018	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	549000	USD
CY2018	us-gaap	Other Comprehensive Income Derivatives Qualifying As Hedges Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPortionAttributableToParent	315000	USD
CY2018	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	19419000	USD
CY2018	us-gaap	Dividends Common Stock DividendsCommonStock	14870000	USD
CY2018	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	-881000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	168331000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	57980000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	33285000	USD
CY2016	us-gaap	Net Income Loss NetIncomeLoss	32773000	USD
CY2018	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	989000	USD
CY2017	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	12243000	USD
CY2016	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	2007000	USD
CY2018	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	1820000	USD
CY2017	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	1031000	USD
CY2016	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	976000	USD
CY2018	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	8265000	USD
CY2017	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	8508000	USD
CY2016	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	8796000	USD
CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	8797000	USD
CY2017	us-gaap	Share Based Compensation ShareBasedCompensation	7600000	USD
CY2016	us-gaap	Share Based Compensation ShareBasedCompensation	6705000	USD
CY2018	us-gaap	Pension Expense PensionExpense	1821000	USD
CY2017	us-gaap	Pension Expense PensionExpense	937000	USD
CY2016	us-gaap	Pension Expense PensionExpense	1733000	USD
CY2018	us-gaap	Gain Loss On Investments GainLossOnInvestments	-563000	USD
CY2017	us-gaap	Gain Loss On Investments GainLossOnInvestments	-510000	USD
CY2016	us-gaap	Gain Loss On Investments GainLossOnInvestments	-597000	USD
CY2018	us-gaap	Disposal Group Not Discontinued Operation Gain Loss On Disposal DisposalGroupNotDiscontinuedOperationGainLossOnDisposal	0	USD
CY2017	us-gaap	Disposal Group Not Discontinued Operation Gain Loss On Disposal DisposalGroupNotDiscontinuedOperationGainLossOnDisposal	3148000	USD
CY2016	us-gaap	Disposal Group Not Discontinued Operation Gain Loss On Disposal DisposalGroupNotDiscontinuedOperationGainLossOnDisposal	0	USD
CY2018	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-388000	USD
CY2017	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-1453000	USD
CY2016	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-279000	USD
CY2018	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	10851000	USD
CY2017	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	20535000	USD
CY2016	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	8403000	USD
CY2018	us-gaap	Increase Decrease In Income Taxes Receivable IncreaseDecreaseInIncomeTaxesReceivable	-6797000	USD
CY2017	us-gaap	Increase Decrease In Income Taxes Receivable IncreaseDecreaseInIncomeTaxesReceivable	6944000	USD
CY2016	us-gaap	Increase Decrease In Income Taxes Receivable IncreaseDecreaseInIncomeTaxesReceivable	-354000	USD
CY2018	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	2050000	USD
CY2017	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	1471000	USD
CY2016	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	1631000	USD
CY2018	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-994000	USD
CY2017	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	556000	USD
CY2016	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	495000	USD
CY2018	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	3932000	USD
CY2017	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-1537000	USD
CY2016	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-1920000	USD
CY2018	us-gaap	Increase Decrease In Employee Related Liabilities IncreaseDecreaseInEmployeeRelatedLiabilities	1350000	USD
CY2017	us-gaap	Increase Decrease In Employee Related Liabilities IncreaseDecreaseInEmployeeRelatedLiabilities	1954000	USD
CY2016	us-gaap	Increase Decrease In Employee Related Liabilities IncreaseDecreaseInEmployeeRelatedLiabilities	-1320000	USD
CY2018	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	4858000	USD
CY2017	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	-221000	USD
CY2016	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	-489000	USD
CY2018	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	2070000	USD
CY2017	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	-3770000	USD
CY2016	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	-139000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	87723000	USD
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	29339000	USD
CY2016	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	39823000	USD
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	5170000	USD
CY2017	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	5846000	USD
CY2016	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	12420000	USD
CY2018	us-gaap	Proceeds From Sales Of Business Affiliate And Productive Assets ProceedsFromSalesOfBusinessAffiliateAndProductiveAssets	1000000	USD
CY2017	us-gaap	Proceeds From Sales Of Business Affiliate And Productive Assets ProceedsFromSalesOfBusinessAffiliateAndProductiveAssets	1000000	USD
CY2016	us-gaap	Proceeds From Sales Of Business Affiliate And Productive Assets ProceedsFromSalesOfBusinessAffiliateAndProductiveAssets	0	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-4170000	USD
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-4846000	USD
CY2016	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-12420000	USD
CY2018	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	450400000	USD
CY2017	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	1038593000	USD
CY2016	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	937083000	USD
CY2018	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	495123000	USD
CY2017	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	1033617000	USD
CY2016	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	906008000	USD
CY2018	us-gaap	Repayments Of Debt And Capital Lease Obligations RepaymentsOfDebtAndCapitalLeaseObligations	2039000	USD
CY2017	us-gaap	Repayments Of Debt And Capital Lease Obligations RepaymentsOfDebtAndCapitalLeaseObligations	2148000	USD
CY2016	us-gaap	Repayments Of Debt And Capital Lease Obligations RepaymentsOfDebtAndCapitalLeaseObligations	1830000	USD
CY2018	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	22187000	USD
CY2017	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	14622000	USD
CY2016	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	46013000	USD
CY2018	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	14871000	USD
CY2017	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	12144000	USD
CY2016	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	12447000	USD
CY2018	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	0	USD
CY2017	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	1730000	USD
CY2016	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	158000	USD
CY2018	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	0	USD
CY2017	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	72000	USD
CY2016	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	172000	USD
CY2018	us-gaap	Proceeds From Notes Payable ProceedsFromNotesPayable	0	USD
CY2017	us-gaap	Proceeds From Notes Payable ProceedsFromNotesPayable	0	USD
CY2016	us-gaap	Proceeds From Notes Payable ProceedsFromNotesPayable	1783000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-83820000	USD
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-25596000	USD
CY2016	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-27418000	USD
CY2018	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-267000	USD
CY2017	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-1103000	USD
CY2016	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-15000	USD
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	379000	USD
CY2016Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1482000	USD
CY2015Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1497000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	112000	USD
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	379000	USD
CY2016Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1482000	USD
CY2018	us-gaap	Use Of Estimates UseOfEstimates	The preparation of consolidated 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 important of these estimates and assumptions relate to the following: allowance for doubtful accounts; income taxes; self-insured liabilities for workers’ compensation and health insurance; obligations for pension plans and goodwill 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.
CY2018	kfrc	Revenue From Contract With Customers Contingency Period RevenueFromContractWithCustomersContingencyPeriod	P90D
CY2018	kfrc	Revenue From Contract With Customer Required Payment Period RevenueFromContractWithCustomerRequiredPaymentPeriod	P90D
CY2018Q1	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	0	USD
CY2018Q1	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	0	USD
CY2017	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1357940000	USD
CY2017	us-gaap	Gross Profit GrossProfit	408056000	USD
CY2018	kfrc	Accounts Receivable Reserves As Percentage Of Gross Accounts Receivable AccountsReceivableReservesAsPercentageOfGrossAccountsReceivable	0.010
CY2018	kfrc	Lessee Leasing Arrangements Operating Leases Shortterm Renewal Provision Maximum Termof Contract LesseeLeasingArrangementsOperatingLeasesShorttermRenewalProvisionMaximumTermofContract	P1Y
CY2017	us-gaap	Operating Expenses OperatingExpenses	343962000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	64094000	USD
CY2016	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1319706000	USD
CY2018	kfrc	Workers Compensation Deductible Per Claim WorkersCompensationDeductiblePerClaim	250000	USD
CY2018	kfrc	Health Insurance Stop Loss Maximum Per Claim HealthInsuranceStopLossMaximumPerClaim	350000	USD
CY2018	kfrc	Health Insurance Stop Loss Maximum Per Claim HealthInsuranceStopLossMaximumPerClaim	350000	USD
CY2018	kfrc	Health Insurance Aggregate Risk Of Loss Liability Amount In Excess Of The Stop Loss Maximum HealthInsuranceAggregateRiskOfLossLiabilityAmountInExcessOfTheStopLossMaximum	700000	USD
CY2018	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	513000	shares
CY2017	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	364000	shares
CY2016	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	175000	shares
CY2017	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	527000	shares
CY2016	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	32000	shares
CY2018	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1418353000	USD
CY2018	us-gaap	Gross Profit GrossProfit	418608000	USD
CY2018	us-gaap	Operating Expenses OperatingExpenses	341455000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	77153000	USD
CY2016	us-gaap	Gross Profit GrossProfit	408499000	USD
CY2016	us-gaap	Operating Expenses OperatingExpenses	352544000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	55955000	USD
CY2018	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1418353000	USD
CY2017	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1357940000	USD
CY2016	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1319706000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	67900000	USD
CY2017Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	71565000	USD
CY2018Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	32082000	USD
CY2017Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	31885000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	35818000	USD
CY2017Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	39680000	USD
CY2018	us-gaap	Depreciation Depreciation	6300000	USD
CY2017	us-gaap	Depreciation Depreciation	6900000	USD
CY2016	us-gaap	Depreciation Depreciation	6700000	USD
CY2017	kfrc	Tax Cutsand Jobs Actof2017 Changein Tax Rate Deferred Tax Asset Income Tax Expense Benefit TaxCutsandJobsActof2017ChangeinTaxRateDeferredTaxAssetIncomeTaxExpenseBenefit	5400000	USD
CY2018	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	12730000	USD
CY2017	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	15060000	USD
CY2016	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	16677000	USD
CY2018	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	5454000	USD
CY2017	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	3244000	USD
CY2016	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	3829000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	989000	USD
CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	12505000	USD
CY2016	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	2676000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	19173000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	30809000	USD
CY2016	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	23182000	USD
CY2018	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2017	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350
CY2016	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350
CY2018	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.057
CY2017	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.038
CY2016	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.068
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense EffectiveIncomeTaxRateReconciliationNondeductibleExpense	0.010
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense EffectiveIncomeTaxRateReconciliationNondeductibleExpense	0.007
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense EffectiveIncomeTaxRateReconciliationNondeductibleExpense	0.012
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	0.022
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	0.022
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	0.021
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	0
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	0.025
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	0
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	0
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	0.091
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	0
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.006
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.008
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.005
CY2018	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.249
CY2017	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.481
CY2016	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.414
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Allowance For Doubtful Accounts DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts	738000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Allowance For Doubtful Accounts DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts	611000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	1825000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	1953000	USD
CY2018Q4	kfrc	Deferred Tax Assets Tax Deferred Expense Deferred Compensation DeferredTaxAssetsTaxDeferredExpenseDeferredCompensation	5545000	USD
CY2017Q4	kfrc	Deferred Tax Assets Tax Deferred Expense Deferred Compensation DeferredTaxAssetsTaxDeferredExpenseDeferredCompensation	5423000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	723000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	598000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Postretirement Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits	3471000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Postretirement Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits	3767000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Goodwill And Intangible Assets DeferredTaxAssetsGoodwillAndIntangibleAssets	0	USD
CY2017Q4	us-gaap	Deferred Tax Assets Goodwill And Intangible Assets DeferredTaxAssetsGoodwillAndIntangibleAssets	526000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Foreign DeferredTaxAssetsTaxCreditCarryforwardsForeign	1630000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Foreign DeferredTaxAssetsTaxCreditCarryforwardsForeign	1632000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	344000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	289000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	14276000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	14799000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Prepaid Expenses DeferredTaxLiabilitiesPrepaidExpenses	190000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Prepaid Expenses DeferredTaxLiabilitiesPrepaidExpenses	251000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	1277000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	1482000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssets	1057000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssets	0	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	254000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	17000	USD
CY2018Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	2778000	USD
CY2017Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	1750000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	1747000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	1733000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	9751000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	11316000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	1127000	USD
CY2016Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	1115000	USD
CY2015Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	788000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	41000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	50000	USD
CY2016	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	454000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	0	USD
CY2017	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	29000	USD
CY2016	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	0	USD
CY2018	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	248000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	67000	USD
CY2016	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	102000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	14000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2016	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	25000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	906000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	1127000	USD
CY2016Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	1115000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	700000	USD
CY2018Q4	us-gaap	Goodwill Gross GoodwillGross	280753000	USD
CY2018Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	234785000	USD
CY2018Q4	us-gaap	Goodwill Goodwill	45968000	USD
CY2018	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2018	kfrc	Minimum Specified Forecast Period After Which Cash Flows Determined Using Terminal Value Calculation MinimumSpecifiedForecastPeriodAfterWhichCashFlowsDeterminedUsingTerminalValueCalculation	P5Y
CY2018Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	700000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	1100000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	27900000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	27500000	USD
CY2018	us-gaap	Impairment Of Intangible Assets Excluding Goodwill ImpairmentOfIntangibleAssetsExcludingGoodwill	0	USD
CY2018Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	22900000	USD
CY2017Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	21591000	USD
CY2018Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	15706000	USD
CY2017Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	13282000	USD
CY2018Q4	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	38606000	USD
CY2017Q4	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	34873000	USD
CY2018Q4	us-gaap	Accrued Employee Benefits Current AccruedEmployeeBenefitsCurrent	39690000	USD
CY2017Q4	us-gaap	Accrued Employee Benefits Current AccruedEmployeeBenefitsCurrent	37788000	USD
CY2018Q4	us-gaap	Accrued Payroll Taxes Current AccruedPayrollTaxesCurrent	1842000	USD
CY2017Q4	us-gaap	Accrued Payroll Taxes Current AccruedPayrollTaxesCurrent	5270000	USD
CY2018Q4	us-gaap	Accrued Insurance Current AccruedInsuranceCurrent	2714000	USD
CY2017Q4	us-gaap	Accrued Insurance Current AccruedInsuranceCurrent	2596000	USD
CY2018Q4	us-gaap	Workers Compensation Liability Current WorkersCompensationLiabilityCurrent	1016000	USD
CY2017Q4	us-gaap	Workers Compensation Liability Current WorkersCompensationLiabilityCurrent	1232000	USD
CY2018Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	45262000	USD
CY2017Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	46886000	USD
CY2018	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	1800000	USD
CY2017	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	1600000	USD
CY2018Q4	us-gaap	Defined Benefit Plan Number Of Shares Of Equity Securities Issued By Employer And Related Parties Included In Plan Assets DefinedBenefitPlanNumberOfSharesOfEquitySecuritiesIssuedByEmployerAndRelatedPartiesIncludedInPlanAssets	146000	shares
CY2017Q4	us-gaap	Defined Benefit Plan Number Of Shares Of Equity Securities Issued By Employer And Related Parties Included In Plan Assets DefinedBenefitPlanNumberOfSharesOfEquitySecuritiesIssuedByEmployerAndRelatedPartiesIncludedInPlanAssets	167000	shares
CY2018	us-gaap	Stock Issued During Period Shares Employee Stock Purchase Plans StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans	19000	shares
CY2017	us-gaap	Stock Issued During Period Shares Employee Stock Purchase Plans StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans	25000	shares
CY2016	us-gaap	Stock Issued During Period Shares Employee Stock Purchase Plans StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans	34000	shares
CY2018Q4	us-gaap	Deferred Compensation Liability Current DeferredCompensationLiabilityCurrent	1800000	USD
CY2017Q4	us-gaap	Deferred Compensation Liability Current DeferredCompensationLiabilityCurrent	2900000	USD
CY2018Q4	us-gaap	Deferred Compensation Liability Classified Noncurrent DeferredCompensationLiabilityClassifiedNoncurrent	28900000	USD
CY2018	us-gaap	Deferred Compensation Arrangement With Individual Compensation Expense DeferredCompensationArrangementWithIndividualCompensationExpense	876000	USD
CY2017	us-gaap	Deferred Compensation Arrangement With Individual Compensation Expense DeferredCompensationArrangementWithIndividualCompensationExpense	722000	USD
CY2016	us-gaap	Deferred Compensation Arrangement With Individual Compensation Expense DeferredCompensationArrangementWithIndividualCompensationExpense	881000	USD
CY2018Q4	us-gaap	Deferred Compensation Plan Assets DeferredCompensationPlanAssets	29100000	USD
CY2017Q4	us-gaap	Deferred Compensation Plan Assets DeferredCompensationPlanAssets	31400000	USD
CY2018Q4	us-gaap	Life Insurance Corporate Or Bank Owned Amount LifeInsuranceCorporateOrBankOwnedAmount	213100000	USD
CY2018	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	0	USD
CY2016	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	1763000	USD
CY2018	kfrc	Defined Benefit Plan Normal Age For Retirement DefinedBenefitPlanNormalAgeForRetirement	P65Y
CY2018	kfrc	Defined Benefit Plan Early Retirement Age DefinedBenefitPlanEarlyRetirementAge	P55Y
CY2018	kfrc	Defined Benefit Plan Vesting Percentage Under The Plan For Attaining Age Fifty Five And Ten Years Of Service DefinedBenefitPlanVestingPercentageUnderThePlanForAttainingAgeFiftyFiveAndTenYearsOfService	1
CY2018	kfrc	Defined Benefit Plan Arrangement Minimum Age DefinedBenefitPlanArrangementMinimumAge	P55Y
CY2018	kfrc	Defined Benefit Plan Arrangement Requisite Service Period DefinedBenefitPlanArrangementRequisiteServicePeriod	P10Y
CY2018	kfrc	Defined Benefit Plan Vesting Percentage Under The Plan Prior To Attaining Age Fifty Five And Ten Years Of Service DefinedBenefitPlanVestingPercentageUnderThePlanPriorToAttainingAgeFiftyFiveAndTenYearsOfService	0
CY2018	kfrc	Defined Benefit Plan Arrangement Minimum Age DefinedBenefitPlanArrangementMinimumAge	P55Y
CY2018	kfrc	Defined Benefit Plan Arrangement Requisite Service Period DefinedBenefitPlanArrangementRequisiteServicePeriod	P10Y
CY2018	kfrc	Defined Benefit Plan Employees Minimum Requisition Period Under Specific Conditions DefinedBenefitPlanEmployeesMinimumRequisitionPeriodUnderSpecificConditions	P5Y
CY2018	kfrc	Defined Benefit Plan Benefits Payable Targeted Percentage DefinedBenefitPlanBenefitsPayableTargetedPercentage	0.45
CY2018	kfrc	Defined Benefit Plan Period For Computation Of Average Salary For Determination Of Benefit DefinedBenefitPlanPeriodForComputationOfAverageSalaryForDeterminationOfBenefit	P3Y
CY2018	kfrc	Defined Benefit Plan Employment Period For Computation Of Benefit DefinedBenefitPlanEmploymentPeriodForComputationOfBenefit	P10Y
CY2018	kfrc	Defined Benefit Plan Eligible Age Under Condition One For Reduced Benefits Under Plan DefinedBenefitPlanEligibleAgeUnderConditionOneForReducedBenefitsUnderPlan	P62Y
CY2018	kfrc	Defined Benefit Plan Eligible Service Under Condition One For Reduced Benefits Under Plan DefinedBenefitPlanEligibleServiceUnderConditionOneForReducedBenefitsUnderPlan	P10Y
CY2018	kfrc	Defined Benefit Plan Eligible Age Under Condition Two For Reduced Benefits Under Plan DefinedBenefitPlanEligibleAgeUnderConditionTwoForReducedBenefitsUnderPlan	P55Y
CY2018	kfrc	Defined Benefit Plan Employee Service Period Under Condition Two DefinedBenefitPlanEmployeeServicePeriodUnderConditionTwo	P25Y
CY2018	kfrc	Defined Benefit Plan Annuity Period For Calculation Of Benefits DefinedBenefitPlanAnnuityPeriodForCalculationOfBenefits	P10Y
CY2018	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	1353000	USD
CY2017	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	319000	USD
CY2016	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	1310000	USD
CY2018	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	468000	USD
CY2017	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	537000	USD
CY2016	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	453000	USD
CY2018	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	1821000	USD
CY2017	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	856000	USD
CY2018Q4	kfrc	Capital Leases Future Minimum Payments Present Value Of Net Minimum Payments Due In Five Years CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPaymentsDueInFiveYears	0	USD
CY2017Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	14409000	USD
CY2016Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	13436000	USD
CY2018	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	1353000	USD
CY2017	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	319000	USD
CY2018	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	468000	USD
CY2017	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	537000	USD
CY2018	us-gaap	Defined Benefit Plan Actuarial Gain Loss DefinedBenefitPlanActuarialGainLoss	-1195000	USD
CY2017	us-gaap	Defined Benefit Plan Actuarial Gain Loss DefinedBenefitPlanActuarialGainLoss	117000	USD
CY2018Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	15035000	USD
CY2017Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	14409000	USD
CY2018	us-gaap	Pension Contributions PensionContributions	0	USD
CY2018Q4	us-gaap	Defined Benefit Plan Accumulated Benefit Obligation DefinedBenefitPlanAccumulatedBenefitObligation	15000000.0	USD
CY2017Q4	us-gaap	Defined Benefit Plan Accumulated Benefit Obligation DefinedBenefitPlanAccumulatedBenefitObligation	14300000	USD
CY2018	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	0	USD
CY2018Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Next Twelve Months DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths	0	USD
CY2018Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Next Twelve Months DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths	0	USD
CY2018Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Two DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo	0	USD
CY2018Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Three DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree	13351000	USD
CY2018Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Four DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour	0	USD
CY2018Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Five DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive	0	USD
CY2018Q4	kfrc	Defined Benefit Plan Expected Future Benefit Payment Years Six Through Ten DefinedBenefitPlanExpectedFutureBenefitPaymentYearsSixThroughTen	0	USD
CY2018Q4	kfrc	Defined Benefit Plan Expected Future Benefit Payment Thereafter DefinedBenefitPlanExpectedFutureBenefitPaymentThereafter	4409000	USD
CY2018	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	8800000	USD
CY2017	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	7600000	USD
CY2016	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	6700000	USD
CY2018	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	2200000	USD
CY2017	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	3000000.0	USD
CY2016	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	2800000	USD
CY2018Q4	kfrc	Capital Leases Future Minimum Payments Present Value Of Net Minimum Payments Current CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPaymentsCurrent	721000	USD
CY2018Q4	kfrc	Capital Leases Future Minimum Payments Present Value Of Net Minimum Payments Due In Two Years CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPaymentsDueInTwoYears	154000	USD
CY2018Q4	kfrc	Capital Leases Future Minimum Payments Present Value Of Net Minimum Payments Due In Three Years CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPaymentsDueInThreeYears	18000	USD
CY2018Q4	kfrc	Capital Leases Future Minimum Payments Present Value Of Net Minimum Payments Due In Four Years CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPaymentsDueInFourYears	3000	USD
CY2018Q4	kfrc	Capital Leases Future Minimum Payments Present Value Of Net Minimum Payments Due After Year Five CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPaymentsDueAfterYearFive	0	USD
CY2018Q4	us-gaap	Capital Leases Future Minimum Payments Present Value Of Net Minimum Payments CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments	896000	USD
CY2018Q4	kfrc	Capital Leases Future Minimum Payments Interest Included In Payments Current CapitalLeasesFutureMinimumPaymentsInterestIncludedInPaymentsCurrent	43000	USD
CY2018Q4	kfrc	Capital Leases Future Minimum Payments Interest Included In Payments Due In Two Years CapitalLeasesFutureMinimumPaymentsInterestIncludedInPaymentsDueInTwoYears	4000	USD
CY2018Q4	kfrc	Capital Leases Future Minimum Payments Interest Included In Payments Due In Three Years CapitalLeasesFutureMinimumPaymentsInterestIncludedInPaymentsDueInThreeYears	1000	USD
CY2018Q4	kfrc	Capital Leases Future Minimum Payments Interest Included In Payments Due In Four Years CapitalLeasesFutureMinimumPaymentsInterestIncludedInPaymentsDueInFourYears	0	USD
CY2018Q4	kfrc	Capital Leases Future Minimum Payments Interest Included In Payments Due In Five Years CapitalLeasesFutureMinimumPaymentsInterestIncludedInPaymentsDueInFiveYears	0	USD
CY2018Q4	kfrc	Capital Leases Future Minimum Payments Interest Included In Payments Thereafter CapitalLeasesFutureMinimumPaymentsInterestIncludedInPaymentsThereafter	0	USD
CY2018Q4	us-gaap	Capital Leases Future Minimum Payments Interest Included In Payments CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments	48000	USD
CY2018Q4	us-gaap	Capital Leases Future Minimum Payments Due Current CapitalLeasesFutureMinimumPaymentsDueCurrent	764000	USD
CY2018Q4	us-gaap	Capital Leases Future Minimum Payments Due In Two Years CapitalLeasesFutureMinimumPaymentsDueInTwoYears	158000	USD
CY2018Q4	us-gaap	Capital Leases Future Minimum Payments Due In Three Years CapitalLeasesFutureMinimumPaymentsDueInThreeYears	19000	USD
CY2018Q4	us-gaap	Capital Leases Future Minimum Payments Due In Four Years CapitalLeasesFutureMinimumPaymentsDueInFourYears	3000	USD
CY2018Q4	us-gaap	Capital Leases Future Minimum Payments Due In Five Years CapitalLeasesFutureMinimumPaymentsDueInFiveYears	0	USD
CY2018Q4	us-gaap	Capital Leases Future Minimum Payments Due Thereafter CapitalLeasesFutureMinimumPaymentsDueThereafter	0	USD
CY2018Q4	us-gaap	Capital Leases Future Minimum Payments Due CapitalLeasesFutureMinimumPaymentsDue	944000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	6994000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	6177000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	3731000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	2142000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	1745000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	1199000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	21988000	USD
CY2018Q4	kfrc	Leases Future Minimum Payments Due Current LeasesFutureMinimumPaymentsDueCurrent	7758000	USD
CY2018Q4	kfrc	Leases Future Minimum Payments Due In Two Years LeasesFutureMinimumPaymentsDueInTwoYears	6335000	USD
CY2018Q4	kfrc	Leases Future Minimum Payments Due In Three Years LeasesFutureMinimumPaymentsDueInThreeYears	3750000	USD
CY2018Q4	kfrc	Leases Future Minimum Payments Due In Four Years LeasesFutureMinimumPaymentsDueInFourYears	2145000	USD
CY2018Q4	kfrc	Leases Future Minimum Payments Due In Five Years LeasesFutureMinimumPaymentsDueInFiveYears	1745000	USD
CY2018Q4	kfrc	Leases Future Minimum Payments Due There After LeasesFutureMinimumPaymentsDueThereAfter	1199000	USD
CY2018Q4	kfrc	Leases Future Minimum Payments Due LeasesFutureMinimumPaymentsDue	22932000	USD
CY2018	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	7700000	USD
CY2018Q4	us-gaap	Purchase Obligation PurchaseObligation	16300000	USD
CY2018Q4	us-gaap	Purchase Obligation Due In Next Twelve Months PurchaseObligationDueInNextTwelveMonths	10600000	USD
CY2018Q4	us-gaap	Purchase Obligation Due In Second Year PurchaseObligationDueInSecondYear	3200000	USD
CY2018Q4	us-gaap	Purchase Obligation Due In Third Year PurchaseObligationDueInThirdYear	2200000	USD
CY2018Q4	us-gaap	Purchase Obligation Due In Fourth Year PurchaseObligationDueInFourthYear	300000	USD
CY2018Q4	kfrc	Letter Of Credit Outstanding For Workers Compensation And Other Insurance Coverage LetterOfCreditOutstandingForWorkersCompensationAndOtherInsuranceCoverage	2800000	USD
CY2018Q4	kfrc	Letter Of Credit Outstanding For Facility Lease Deposits LetterOfCreditOutstandingForFacilityLeaseDeposits	300000	USD
CY2018Q4	kfrc	Supplemental Unemployment Benefits On Change In Control SupplementalUnemploymentBenefitsOnChangeInControl	32600000	USD
CY2018Q4	kfrc	Supplemental Unemployment Benefits On No Change In Control SupplementalUnemploymentBenefitsOnNoChangeInControl	14100000	USD
CY2018Q1	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	346293000	USD
CY2018Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	358624000	USD
CY2018Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	355452000	USD
CY2018Q4	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	357984000	USD
CY2018Q1	us-gaap	Gross Profit GrossProfit	100188000	USD
CY2018Q2	us-gaap	Gross Profit GrossProfit	107483000	USD
CY2018Q3	us-gaap	Gross Profit GrossProfit	104381000	USD
CY2018Q4	us-gaap	Gross Profit GrossProfit	106556000	USD
CY2018Q1	us-gaap	Net Income Loss NetIncomeLoss	9175000	USD
CY2018Q2	us-gaap	Net Income Loss NetIncomeLoss	16272000	USD
CY2018Q3	us-gaap	Net Income Loss NetIncomeLoss	16177000	USD
CY2018Q4	us-gaap	Net Income Loss NetIncomeLoss	16356000	USD
CY2018Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.37
CY2018Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.66
CY2018Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.65
CY2018Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.66
CY2018Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.37
CY2018Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.65
CY2018Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.64
CY2018Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.65
CY2017Q1	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	333992000	USD
CY2017Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	340309000	USD
CY2017Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	341053000	USD
CY2017Q4	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	342586000	USD
CY2017Q1	us-gaap	Gross Profit GrossProfit	97135000	USD
CY2017Q2	us-gaap	Gross Profit GrossProfit	103919000	USD
CY2017Q3	us-gaap	Gross Profit GrossProfit	104375000	USD
CY2017Q4	us-gaap	Gross Profit GrossProfit	102627000	USD
CY2017Q1	us-gaap	Net Income Loss NetIncomeLoss	5902000	USD
CY2017Q2	us-gaap	Net Income Loss NetIncomeLoss	11144000	USD
CY2017Q3	us-gaap	Net Income Loss NetIncomeLoss	10099000	USD
CY2017Q4	us-gaap	Net Income Loss NetIncomeLoss	6140000	USD
CY2017Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.23
CY2017Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.44
CY2017Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.40
CY2017Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.25
CY2017Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.23
CY2017Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.44
CY2017Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.40
CY2017Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.24
CY2018	us-gaap	Income Taxes Paid IncomeTaxesPaid	13442000	USD
CY2017	us-gaap	Income Taxes Paid IncomeTaxesPaid	24330000	USD
CY2016	us-gaap	Income Taxes Paid IncomeTaxesPaid	21324000	USD
CY2018	us-gaap	Interest Paid Net InterestPaidNet	3814000	USD
CY2017	us-gaap	Interest Paid Net InterestPaidNet	3518000	USD
CY2016	us-gaap	Interest Paid Net InterestPaidNet	2101000	USD
CY2018	kfrc	Stock Repurchases Incurred But Not Yet Paid StockRepurchasesIncurredButNotYetPaid	556000	USD
CY2017	kfrc	Stock Repurchases Incurred But Not Yet Paid StockRepurchasesIncurredButNotYetPaid	898000	USD
CY2016	kfrc	Stock Repurchases Incurred But Not Yet Paid StockRepurchasesIncurredButNotYetPaid	935000	USD
CY2018	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	549000	USD
CY2017	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	522000	USD
CY2016	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	669000	USD
CY2018	us-gaap	Capital Lease Obligations Incurred CapitalLeaseObligationsIncurred	0	USD
CY2017	us-gaap	Capital Lease Obligations Incurred CapitalLeaseObligationsIncurred	937000	USD
CY2016	us-gaap	Capital Lease Obligations Incurred CapitalLeaseObligationsIncurred	1153000	USD
CY2018	kfrc	Disposal Group Receivable For Sale Of Disposal Group DisposalGroupReceivableForSaleOfDisposalGroup	0	USD
CY2017	kfrc	Disposal Group Receivable For Sale Of Disposal Group DisposalGroupReceivableForSaleOfDisposalGroup	1979000	USD
CY2016	kfrc	Disposal Group Receivable For Sale Of Disposal Group DisposalGroupReceivableForSaleOfDisposalGroup	0	USD
CY2018	us-gaap	Stock Issued1 StockIssued1	0	USD
CY2017	us-gaap	Stock Issued1 StockIssued1	0	USD
CY2016	us-gaap	Stock Issued1 StockIssued1	63000	USD
CY2018	us-gaap	Proceeds From Income Tax Refunds ProceedsFromIncomeTaxRefunds	6800000	USD

Files In Submission

Name	View Source	Status
0000930420-19-000034-index-headers.html	Edgar Link	pending
0000930420-19-000034-index.html	Edgar Link	pending
0000930420-19-000034.txt	Edgar Link	pending
0000930420-19-000034-xbrl.zip	Edgar Link	pending
chart-3a08e70918d25512a63.jpg	Edgar Link	pending
chart-3a98b4136f905797a90.jpg	Edgar Link	pending
chart-e4de68bfc035598aa4e.jpg	Edgar Link	pending
exhibit1021andrewthoma.htm	Edgar Link	pending
exhibit212018kforcesub.htm	Edgar Link	pending
exhibit232018consentof.htm	Edgar Link	pending
exhibit311q42018.htm	Edgar Link	pending
exhibit312q42018.htm	Edgar Link	pending
exhibit321q42018.htm	Edgar Link	pending
exhibit322q42018.htm	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
kfrc-12312018x10k.htm	Edgar Link	pending
kfrc-12312018x10k_htm.xml	Edgar Link	completed
kfrc-20181231.xsd	Edgar Link	pending
kfrc-20181231_cal.xml	Edgar Link	unprocessable
kfrc-20181231_def.xml	Edgar Link	unprocessable
kfrc-20181231_lab.xml	Edgar Link	unprocessable
kfrc-20181231_pre.xml	Edgar Link	unprocessable
MetaLinks.json	Edgar Link	pending
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$KFRC
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2018 Q4 Form 10-K Financial Statement

#000093042019000034 Filed on February 22, 2019

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

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$KFRC KFORCE INC Stock $kfrc

2018 Q4 Form 10-K Financial Statement

#000093042019000034 Filed on February 22, 2019

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$KFRC
KFORCE INC Stock $kfrc