XML 24 R1.htm IDEA: XBRL DOCUMENT v3.3.1.900
Document and Entity Information - USD ($)
 12 Months Ended
Jan. 02, 2016
Mar. 28, 2016
Jul. 04, 2015
Document and Entity Information [Abstract]      
Entity Registrant Name BlueLinx Holdings Inc.    
Entity Central Index Key 0001301787    
Trading Symbol bxc    
Entity Current Reporting Status Yes    
Entity Voluntary Filers No    
Current Fiscal Year End Date --01-02    
Entity Filer Category Smaller Reporting Company    
Entity Well-Known Seasoned Issuer No    
Entity Common Stock, Shares Outstanding   90,054,008  
Entity Public Float     $ 23,042,559
Document Type 10-K    
Document Period End Date Jan. 02, 2016    
Amendment Flag false    
Document Fiscal Year Focus 2015    
Document Fiscal Period Focus FY