v3.20.4
Net Loss Per Share - Summary of Calculation of Basic and Diluted Net Loss Per Share (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 3 Months Ended 12 Months Ended
Dec. 31, 2020
Sep. 30, 2020
Jun. 30, 2020
Mar. 31, 2020
Dec. 31, 2019
Sep. 30, 2019
Jun. 30, 2019
Mar. 31, 2019
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Numerator:                      
Net Loss Attributable to Common Stockholders $ 67,306 $ 12,947 $ (43,148) $ (54,612) $ (15,717) $ (25,155) $ (9,333) $ (9,732) $ (17,507) $ (59,937) $ (8,857)
Denominator:                      
Weighted-average shares used in computing net loss per share, basic and diluted                 123,978 115,218 104,618
Net loss per share, basic and diluted         $ (0.13) $ (0.22) $ (0.08) $ (0.09) $ (0.14) $ (0.52) $ (0.08)