GOODWILL AND INTANGIBLE ASSETS - Narrative (Details) $ in Thousands	6 Months Ended
	Jun. 29, 2025 USD ($)	Jun. 30, 2024 USD ($)	Mar. 30, 2025 USD ($)	Jan. 31, 2025 USD ($)	Dec. 29, 2024 USD ($)
Indefinite-lived Intangible Assets [Line Items]
Total acquired identifiable intangible assets	$ 16,734				$ 4,269
Amortization of Intangible Assets	1,300	$ 2,900
Trade names/trademarks
Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived trade names/trademarks	4,600				4,800
Client relationships
Indefinite-lived Intangible Assets [Line Items]
Total acquired identifiable intangible assets	14,300				2,637
Trade names/trademarks
Indefinite-lived Intangible Assets [Line Items]
Total acquired identifiable intangible assets	$ 2,434				$ 1,632
Trade names/trademarks \| Measurement Input, Discount Rate
Indefinite-lived Intangible Assets [Line Items]
Discount rate increase	0.010
Healthcare Staffing Professionals, Inc.
Indefinite-lived Intangible Assets [Line Items]
Total acquired identifiable intangible assets				$ 14,950
Healthcare Staffing Professionals, Inc. \| Client relationships
Indefinite-lived Intangible Assets [Line Items]
Total acquired identifiable intangible assets	$ 14,300			14,300
Healthcare Staffing Professionals, Inc. \| Trade names/trademarks
Indefinite-lived Intangible Assets [Line Items]
Total acquired identifiable intangible assets				$ 650
PeopleManagement \| Trade names/trademarks
Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived trade names/trademarks	2,500		$ 2,700
PeopleSolutions \| Trade names/trademarks
Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived trade names/trademarks	$ 2,100

TrueBlue, Inc. 10-Q