XML 13 R1.htm IDEA: XBRL DOCUMENT v3.7.0.1
Document and Entity Information - shares
6 Months Ended
Jun. 30, 2017
Aug. 02, 2017
Document and Entity Information [Abstract]    
Entity Registrant Name Evolent Health, Inc.  
Entity Central Index Key 0001628908  
Document Type 10-Q  
Document Period End Date Jun. 30, 2017  
Amendment Flag false  
Current Fiscal Year End Date --12-31  
Entity Current Reporting Status Yes  
Entity Filer Category Accelerated Filer  
Document Fiscal Year Focus 2017  
Document Fiscal Period Focus Q2  
Class A    
Entity Common Stock, Shares Outstanding (in shares)   65,822,144
Class B    
Entity Common Stock, Shares Outstanding (in shares)   2,653,544