v3.19.3.a.u2
Cover Page - shares
9 Months Ended
Nov. 03, 2019
Dec. 06, 2019
Cover page.    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Nov. 03, 2019  
Document Transition Report false  
Entity File Number 001-33608  
Entity Registrant Name lululemon athletica inc.  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 20-3842867  
Entity Address, Address Line One 1818 Cornwall Avenue  
Entity Address, City or Town Vancouver  
Entity Address, State or Province BC  
Entity Address, Postal Zip Code V6J 1C7  
City Area Code 604  
Local Phone Number 732-6124  
Title of 12(b) Security Common Stock, par value $0.005 per share  
Trading Symbol LULU  
Security Exchange Name NASDAQ  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Large Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Amendment Flag false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   123,334,595
Document Fiscal Year Focus 2019  
Document Fiscal Period Focus Q3  
Entity Central Index Key 0001397187  
Current Fiscal Year End Date --02-02