Quarterly report pursuant to Section 13 or 15(d)

Net Loss Per Share (Details)

v3.19.1
Net Loss Per Share (Details) - shares
shares in Thousands
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Antidilutive securities excluded from the computation of diluted net loss per share    
Total 25,256 21,079
Employee stock option    
Antidilutive securities excluded from the computation of diluted net loss per share    
Total 25,126 20,985
Purchase Plan    
Antidilutive securities excluded from the computation of diluted net loss per share    
Total 130 94