v2.4.0.6
Document and Entity Information (USD $)
9 Months Ended
Oct. 30, 2011
Nov. 28, 2011
Jul. 30, 2010
Entity Registrant Name lululemon athletica inc.    
Entity Central Index Key 0001397187    
Document Type 10-Q    
Document Period End Date Oct. 30, 2011    
Amendment Flag false    
Current Fiscal Year End Date --01-30    
Document Fiscal Year Focus 2012    
Document Fiscal Period Focus Q3    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Filer Category Large Accelerated Filer    
Entity Public Float     $ 1,954,124,791
Entity Common Stock, Shares Outstanding   109,359,280  
Exchangeable Stock
     
Entity Common Stock, Shares Outstanding   34,124,680  
Special Voting Stock
     
Entity Common Stock, Shares Outstanding   34,124,680