Quarterly report pursuant to Section 13 or 15(d)

Net Income Loss Per Share - Computation of Basic and Diluted Net Loss Per Common Share (Detail)

v3.21.2
Net Income Loss Per Share - Computation of Basic and Diluted Net Loss Per Common Share (Detail) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Dec. 31, 2020
Numerator          
Net loss $ (11,444) $ (11,013) $ (54,726) $ (35,490) $ (47,876)
Denominator          
Weighted-average common shares outstanding 33,342,828 27,606,061 32,767,752 27,180,059  
Less: Weighted-average shares subject to repurchase (10,160) (12,746) (14,813) (17,179)  
Denominator for basic and diluted net loss per share attributable to common stockholders 33,332,668 27,593,315 32,752,939 27,162,880  
Basic and diluted net loss per share $ (0.34) $ (0.40) $ (1.67) $ (1.31)