Annual report pursuant to Section 13 and 15(d)

Document and Entity Information

Document and Entity Information - USD ($)
12 Months Ended
Jan. 28, 2017
Mar. 01, 2017
Jul. 30, 2016
Document and Entity Information      
Entity Registrant Name Michaels Companies, Inc.    
Entity Central Index Key 0001593936    
Document Type 10-K    
Document Period End Date Jan. 28, 2017    
Amendment Flag false    
Current Fiscal Year End Date --01-28    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Filer Category Large Accelerated Filer    
Entity Public Float     $ 2,415,252,000
Entity Common Stock, Shares Outstanding   188,894,383  
Document Fiscal Year Focus 2016    
Document Fiscal Period Focus FY