Document and Entity Information (USD $)
0 Months Ended 6 Months Ended
Aug. 01, 2015
Jun. 30, 2015
Aug. 01, 2015
Document and Entity Information      
Entity Registrant Name   Esperion Therapeutics, Inc.  
Entity Central Index Key   0001434868  
Document Type   10-Q  
Document Period End Date   Jun. 30, 2015  
Amendment Flag   false  
Current Fiscal Year End Date   --12-31  
Entity Current Reporting Status   Yes  
Entity Filer Category   Accelerated Filer  
Entity Common Stock, Shares Outstanding     22,488,736
Document Fiscal Year Focus   2015  
Document Fiscal Period Focus   Q2  
Entity Listing, Par Value Per Share $ 0.001