SEGMENT INFORMATION (Details) $ in Thousands	3 Months Ended
Mar. 31, 2024 USD ($) segment	Mar. 26, 2023 USD ($)
Segment Reporting [Abstract]
Number of aggregated reportable segments \| segment	1
Segment Reporting Information [Line Items]
Revenue	$ 402,853	$ 465,288
Segment profit	2,572	9,593
Third-party processing fees for hiring tax credits	(90)	(120)
Amortization of software as a service assets	(1,343)	(868)
PeopleReady technology upgrade costs	(385)	(32)
Other benefits (costs)	(2,253)	(1,397)
Depreciation and amortization	(7,958)	(6,411)
Income (loss) from operations	(15,509)	(5,943)
Interest and other income (expense), net	1,599	1,014
Income (loss) before tax expense (benefit)	(13,910)	(4,929)
PeopleReady
Segment Reporting Information [Line Items]
Segment profit	(5,058)	872
PeopleManagement
Segment Reporting Information [Line Items]
Segment profit	2,751	(202)
PeopleScout
Segment Reporting Information [Line Items]
Segment profit	4,879	8,923
Corporate unallocated
Segment Reporting Information [Line Items]
Corporate unallocated expense	(6,052)	(6,708)
Contingent staffing \| PeopleReady
Segment Reporting Information [Line Items]
Revenue	222,661	252,628
Contingent staffing \| PeopleManagement
Segment Reporting Information [Line Items]
Revenue	133,860	143,184
Human resource outsourcing \| PeopleScout
Segment Reporting Information [Line Items]
Revenue	$ 46,332	$ 69,476

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