v3.26.1
GOODWILL AND INTANGIBLE ASSETS - Changes in Carrying Amount of Goodwill (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Mar. 29, 2026
Dec. 29, 2024
Dec. 28, 2025
Goodwill [Line Items]      
Foreign currency translation $ 90    
Goodwill before impairment 346,113   $ 346,023
Accumulated impairment loss (307,183)   (303,527)
Goodwill, net 38,930   42,496
Goodwill impairment loss $ (3,656) $ (59,100)  
Measurement Input, Discount Rate      
Goodwill [Line Items]      
Weighted average cost of capital 16.50%    
HSP      
Goodwill [Line Items]      
Goodwill, net $ 17,300    
PeopleReady      
Goodwill [Line Items]      
Foreign currency translation 0    
Goodwill before impairment 105,284   105,284
Accumulated impairment loss (105,284)   (105,284)
Goodwill, net 0   0
Goodwill impairment loss 0    
PeopleManagement      
Goodwill [Line Items]      
Foreign currency translation 0    
Goodwill before impairment 81,092   81,092
Accumulated impairment loss (79,601)   (79,601)
Goodwill, net 1,491   1,491
Goodwill impairment loss 0    
PeopleSolutions      
Goodwill [Line Items]      
Foreign currency translation 90    
Goodwill before impairment 159,737   159,647
Accumulated impairment loss (122,298)   (118,642)
Goodwill, net 37,439   $ 41,005
Goodwill impairment loss (3,656)    
HSP      
Goodwill [Line Items]      
Goodwill, net $ 13,700