v2.4.0.6
Document and Entity Information (USD $)
12 Months Ended
Dec. 31, 2011
Feb. 24, 2012
Jun. 30, 2011
Document Information      
Entity Registrant Name ENDOLOGIX INC /DE/    
Entity Central Index Key 0001013606    
Current Fiscal Year End Date --12-31    
Entity Filer Category Accelerated Filer    
Document Type 10-K    
Document Period End Date Dec. 31, 2011    
Document Fiscal Year Focus 2011    
Document Fiscal Period Focus Q4    
Amendment Flag false    
Entity Common Stock, Shares Outstanding   58,180,570  
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Public Float     $ 485,961,605