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Stockholders' Equity - Summary of Unvested Restricted Stock Unit Activity (Detail) - Restricted Stock Units [Member]
 6 Months Ended
Jun. 30, 2023
$ / shares
shares
Class of Stock [Line Items]  
Unvested as of January 1, 2023 | shares 19,316,459
Shares, Granted | shares 13,585,428
Shares, Vested | shares (5,202,007)
Shares, Forfeited | shares (1,484,678)
Unvested as of June 30, 2023 | shares 26,215,202
Weighted Average Grant Date Fair Value, Unvested as of January 1, 2023 | $ / shares $ 10.78
Weighted Average Grant Date Fair Value, Granted | $ / shares 2.6
Weighted Average Grant Date Fair Value, Vested | $ / shares 7.03
Weighted Average Grant Date Fair Value, Forfeited | $ / shares 3.97
Weighted Average Grant Date Fair Value, Unvested as of March 31, 2023 | $ / shares $ 7.67