Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity - Summary of RSU Activity (Detail)

v3.21.1
Stockholders' Equity - Summary of RSU Activity (Detail) - Unvested RSUs
3 Months Ended
Mar. 31, 2021
$ / shares
shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]  
Shares, Unvested as of December 31, 2020 | shares 3,829,620
Shares, Granted | shares 2,645,345
Shares, Forfeited | shares (170,491)
Shares, Vested | shares (509,869)
Shares, Outstanding as of March 31, 2021 | shares 5,794,605
Weighted Average Grant Date Fair Value, Unvested as of December 31, 2020 | $ / shares $ 15.91
Weighted Average Grant Date Fair Value, Granted | $ / shares 17.19
Weighted Average Grant Date Fair Value, Forfeited | $ / shares 15.33
Weighted Average Grant Date Fair Value, Vested | $ / shares 22.15
Weighted Average Grant Date Fair Value, Outstanding as of March 31, 2021 | $ / shares $ 15.96