Quarterly report pursuant to Section 13 or 15(d)

Net Income Loss Per Share - Effect of Anti-dilutive Securities (Detail)

v3.20.1
Net Income Loss Per Share - Effect of Anti-dilutive Securities (Detail) - shares
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Effect of Anti-dilutive Securities 11,078,959 10,597,934
Employee Stock Option and Restricted Stock Units [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Effect of Anti-dilutive Securities 9,781,808 9,300,783
Warrant [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Effect of Anti-dilutive Securities 1,297,151 1,297,151