Quarterly report pursuant to Section 13 or 15(d)

Loss per Share - Additional Information (Details)

v3.19.3
Loss per Share - Additional Information (Details)
6 Months Ended
Jun. 30, 2019
shares
Stock Options [Member]  
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]  
Anti-dilutive common share equivalents excluded from computation of diluted net loss per share 1,892,200
Restricted Stock Units (RSUs) [Member]  
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]  
Anti-dilutive common share equivalents excluded from computation of diluted net loss per share 1,237,895
Employee Stock Purchase Plan [Member]  
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]  
Anti-dilutive common share equivalents excluded from computation of diluted net loss per share 30,046