v3.10.0.1
Document and Entity Information - shares
9 Months Ended
Sep. 30, 2018
Oct. 31, 2018
Document And Entity Information [Abstract]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Sep. 30, 2018  
Document Fiscal Year Focus 2018  
Document Fiscal Period Focus Q3  
Trading Symbol AERI  
Entity Registrant Name AERIE PHARMACEUTICALS INC  
Entity CIK 0001337553  
Current Fiscal Year End Date --12-31  
Emerging Growth Company false  
Smaller Reporting Company false  
Entity Filer Category Large Accelerated Filer  
Entity Common Stock, Shares Outstanding (in shares)   45,453,615