Quarterly report pursuant to Section 13 or 15(d)

Net Income (Loss) Per Share of Common Stock - Additional Information (Detail)

v3.19.2
Net Income (Loss) Per Share of Common Stock - Additional Information (Detail) - shares
3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Shares used in computing diluted weighted average shares outstanding 79,406,556 73,658,529 79,457,926 73,657,537
Employee Stock Options [Member]        
Shares used in computing diluted weighted average shares outstanding     48,370