v2.4.0.8
Document and Entity Information (USD $)
12 Months Ended
Dec. 31, 2013
Feb. 24, 2014
Jun. 28, 2013
Document Information [Line Items]      
Entity Registrant Name ENDOLOGIX INC /DE/    
Entity Central Index Key 0001013606    
Document Type 10-K    
Document Period End Date Dec. 31, 2013    
Document Fiscal Year Focus 2013    
Document Fiscal Period Focus FY    
Amendment Flag false    
Current Fiscal Year End Date --12-31    
Entity Current Reporting Status Yes    
Entity Filer Category Large Accelerated Filer    
Entity Common Stock, Shares Outstanding   63,869,249  
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Public Float     $ 837,161,545