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Document and Entity Information - shares
9 Months Ended
Sep. 23, 2016
Oct. 10, 2016
Document and Entity Information [Abstract]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Sep. 23, 2016  
Document Fiscal Year Focus 2016  
Document Fiscal Period Focus Q3  
Trading Symbol TBI  
Entity Registrant Name TrueBlue, Inc.  
Entity Central Index Key 0000768899  
Current Fiscal Year End Date --01-01  
Entity Well-Known Seasoned Issuer No  
Entity Voluntary Filers No  
Entity Current Reporting Status Yes  
Entity Filer Category Large Accelerated Filer  
Entity Common Stock, Shares Outstanding   42,478,596