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Stockholders' Equity - Summary of Unvested Restricted Stock Unit Activity (Detail) - Restricted Stock Units [Member]
 12 Months Ended
Dec. 31, 2022
$ / shares
shares
Class of Stock [Line Items]  
Shares, Unvested as of January 1, 2022 | shares 11,718,813
Shares, Granted | shares 15,430,438
Shares, Vested | shares (5,372,060)
Shares, Forfeited | shares (2,460,732)
Shares, Unvested as of December 31, 2022 | shares 19,316,459
Shares, Unvested, Weighted Average Grant Date Fair Value, as of January 1, 2022 | $ / shares $ 19.63
Shares, Unvested, Granted, Weighted Average Grant Date Fair Value | $ / shares 4.15
Shares, Unvested, Vested, Weighted Average Grant Date Fair Value | $ / shares 12.09
Shares, Unvested, Forfeited, Weighted Average Grant Date Fair Value | $ / shares 8.45
Shares, Unvested, Weighted Average Grant Date Fair Value, as of December 31, 2022 | $ / shares $ 10.78