Quarterly report pursuant to Section 13 or 15(d)

Net Income (Loss) Per Share (Details)

v3.10.0.1
Net Income (Loss) Per Share (Details) - shares
 3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 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) 11,752,444 7,571,639 7,802,871 7,571,639
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) 2,077,874 2,804,420 9,045 2,804,420
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) 1,880,744 2,023,898   2,023,898
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) 7,793,826 2,743,321 7,793,826 2,743,321