Subsequent Events (Details) - USD ($) $ in Millions	Nov. 05, 2025	Oct. 20, 2021
Revolving Credit Facility \| Subsequent Event
Subsequent Event [Line Items]
Initial maximum borrowing capacity	$ 200.0
Accordion feature, increase limit	$ 150.0
Debt Instrument, Interest Rate, Variable, Interest Rate Floor	0.00%
Line of Credit Facility, Debt Covenant, Repurchase Of Equity Securities	$ 25.0
Line Of Credit Facility, Debt Covenant, Threshold, Unrestricted Cash	$ 25.0
Line Of Credit Facility, Debt Covenant, Leverage Ratio Threshold	300.00%
Revolving Credit Facility \| Subsequent Event \| Base Rate
Subsequent Event [Line Items]
Debt Instrument, Basis Spread on Variable Rate	1.00%
Revolving Credit Facility \| Subsequent Event \| Federal Funds Rate
Subsequent Event [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.50%
Revolving Credit Facility \| Subsequent Event \| Secured Overnight Financing Rate (SOFR)
Subsequent Event [Line Items]
Debt Instrument, Basis Spread on Variable Rate	1.00%
Revolving Credit Facility \| Subsequent Event \| Minimum
Subsequent Event [Line Items]
Line of Credit Facility, Covenant Terms, Fixed Charge Coverage Ratio	125.00%
Revolving Credit Facility \| Subsequent Event \| Minimum \| Base Rate
Subsequent Event [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.25%
Revolving Credit Facility \| Subsequent Event \| Minimum \| Secured Overnight Financing Rate (SOFR)
Subsequent Event [Line Items]
Debt Instrument, Basis Spread on Variable Rate	1.25%
Revolving Credit Facility \| Subsequent Event \| Maximum
Subsequent Event [Line Items]
Line Of Credit Facility, Covenant Terms, Leverage Ratio	350.00%
Revolving Credit Facility \| Subsequent Event \| Maximum \| Base Rate
Subsequent Event [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.625%
Revolving Credit Facility \| Subsequent Event \| Maximum \| Secured Overnight Financing Rate (SOFR)
Subsequent Event [Line Items]
Debt Instrument, Basis Spread on Variable Rate	1.625%
Revolving Credit Facility \| Subsequent Event \| Swingline Loans
Subsequent Event [Line Items]
Initial maximum borrowing capacity	$ 10.0
Revolving Credit Facility \| Subsequent Event \| Letter of Credit
Subsequent Event [Line Items]
Initial maximum borrowing capacity	$ 10.0
Credit Facility \| Revolving Credit Facility
Subsequent Event [Line Items]
Initial maximum borrowing capacity		$ 200.0
Accordion feature, increase limit		$ 150.0

KFORCE INC 10-Q