Quarterly report pursuant to Section 13 or 15(d)

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

v3.19.1
Summary of Significant Accounting Policies - Computation of Basic and Diluted Net Loss per Share (Detail) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Numerator:    
Net loss allocated to common stock-basic $ (23,075) $ (17,005)
Net loss allocated to common stock-diluted $ (23,075) $ (17,005)
Denominator:    
Weighted average number of common stock shares outstanding - basic 61,890,632 53,752,753
Weighted average number of common stock shares outstanding - diluted 61,890,632 53,752,753
Net loss per share - basic: $ (0.37) $ (0.32)
Net loss per share - diluted: $ (0.37) $ (0.32)