Document and Entity Information
3 Months Ended
May 04, 2014
Jun. 09, 2014
Document Document And Entity Information [Abstract]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date May 04, 2014  
Document Fiscal Year Focus 2014  
Document Fiscal Period Focus Q1  
Trading Symbol LULU  
Entity Registrant Name lululemon athletica inc.  
Entity Central Index Key 0001397187  
Current Fiscal Year End Date --02-01  
Entity Filer Category Large Accelerated Filer  
Entity Common Stock, Shares Outstanding   115,523,575