v3.5.0.2
Net Loss per Share - Antidilutive (Details) - shares
3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Restricted Stock Units        
Potential dilutive securities that would have been anti-dilutive        
Potential dilutive securities that would have been anti-dilutive due to net loss (in shares) 1,411,878 1,235,274 1,411,878 1,235,274
Stock options        
Potential dilutive securities that would have been anti-dilutive        
Potential dilutive securities that would have been anti-dilutive due to net loss (in shares) 4,943,556 5,577,214 4,943,556 5,577,214