Quarterly report pursuant to Section 13 or 15(d)

Net Loss Per Share (Details)

v3.5.0.2
Net Loss Per Share (Details) - shares
shares in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Antidilutive securities excluded from the computation of diluted net loss per share        
Antidilutive securities excluded from computation of earnings per share (in shares) 21,160 19,989 21,160 19,989
Employee stock option        
Antidilutive securities excluded from the computation of diluted net loss per share        
Antidilutive securities excluded from computation of earnings per share (in shares) 20,897 19,711 20,897 19,711
Warrant to purchase common stock        
Antidilutive securities excluded from the computation of diluted net loss per share        
Antidilutive securities excluded from computation of earnings per share (in shares) 200 200 200 200
Employee stock purchase plan        
Antidilutive securities excluded from the computation of diluted net loss per share        
Antidilutive securities excluded from computation of earnings per share (in shares) 63 78 63 78