SEGMENT INFORMATION (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 25, 2022	Sep. 26, 2021	Sep. 25, 2022	Sep. 26, 2021
Segment Reporting Information [Line Items]
Revenue	$ 575,721	$ 577,031	$ 1,696,489	$ 1,551,692
Segment profit	43,902	36,828	119,218	88,356
Third-party processing fees for hiring tax credits	(162)	(419)	(486)	(584)
Amortization of software as a service assets	(729)	(670)	(2,175)	(1,989)
PeopleReady technology upgrade costs	(1,858)	0	(6,156)	0
COVID-19 government subsidies, net	0	92	0	4,131
Other benefits (costs)	(189)	(410)	166	(2,434)
Depreciation and amortization	(7,483)	(6,426)	(22,015)	(20,405)
Income (loss) from operations	24,085	21,328	65,327	46,482
Interest expense and other income, net	703	581	1,098	1,880
Income before tax expense	24,788	21,909	66,425	48,362
PeopleReady
Segment Reporting Information [Line Items]
Segment profit	28,732	24,690	65,276	54,987
PeopleManagement
Segment Reporting Information [Line Items]
Segment profit	4,463	2,360	11,670	8,697
PeopleScout
Segment Reporting Information [Line Items]
Segment profit	10,707	9,778	42,272	24,672
Corporate unallocated
Segment Reporting Information [Line Items]
Corporate unallocated expense	(9,396)	(7,667)	(23,225)	(20,593)
Contingent staffing \| PeopleReady
Segment Reporting Information [Line Items]
Revenue	334,639	349,056	958,272	908,764
Contingent staffing \| PeopleManagement
Segment Reporting Information [Line Items]
Revenue	163,618	157,789	489,375	461,899
Human resource outsourcing \| PeopleScout
Segment Reporting Information [Line Items]
Revenue	$ 77,464	$ 70,186	$ 248,842	$ 181,029

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