Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies - Computation of Basic and Diluted Net Loss per Share (Detail)

v3.19.3
Summary of Significant Accounting Policies - Computation of Basic and Diluted Net Loss per Share (Detail) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Numerator:        
Net loss allocated to common stock-basic $ (26,282) $ (18,563) $ (73,395) $ (53,099)
Adjustments for revaluation and extinguishment of common stock warrants   (1,462)   (422)
Net loss allocated to common stock-diluted $ (26,282) $ (20,025) $ (73,395) $ (53,521)
Denominator:        
Weighted average number of common stock shares outstanding - basic 68,701,043 59,121,600 66,454,750 57,255,666
Dilutive securities:        
Common stock warrants   266,180   42,439
Weighted average number of common stock shares outstanding - diluted 68,701,043 59,387,780 66,454,750 57,298,105
Net loss per share - basic: $ (0.38) $ (0.31) $ (1.10) $ (0.93)
Net loss per share - diluted: $ (0.38) $ (0.34) $ (1.10) $ (0.93)