Quarterly report pursuant to Section 13 or 15(d)

Net Income (Loss) Per Share (Details)

v3.8.0.1
Net Income (Loss) Per Share (Details) - shares
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
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 loss per share (in shares) 2,760,876 7,855,401
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 loss per share (in shares) 9,045 2,891,036
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 loss per share (in shares) 8,510 2,221,044
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 loss per share (in shares) 2,743,321 2,743,321