Quarterly report pursuant to Section 13 or 15(d)

Net Loss Per Share (Details)

v3.8.0.1
Net Loss Per Share (Details) - shares
 9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Common share equivalents for securities that were anti-dilutive and therefore excluded from the computation of diluted earnings per share    
Anti-dilutive securities excluded from computation of diluted earnings per share (in shares) 7,311,730 8,008,427
Stock options    
Common share equivalents for securities that were anti-dilutive and therefore excluded from the computation of diluted earnings per share    
Anti-dilutive securities excluded from computation of diluted earnings per share (in shares) 2,667,329 3,283,331
Unvested restricted stock units and awards    
Common share equivalents for securities that were anti-dilutive and therefore excluded from the computation of diluted earnings per share    
Anti-dilutive securities excluded from computation of diluted earnings per share (in shares) 1,901,080 1,981,775
Convertible Notes    
Common share equivalents for securities that were anti-dilutive and therefore excluded from the computation of diluted earnings per share    
Anti-dilutive securities excluded from computation of diluted earnings per share (in shares) 2,743,321 2,743,321