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Stockholders' Equity - Summary of Performance-based Market Condition Share Awards (Detail) - Performance-based Market Condition Share Awards [Member] - $ / shares
9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Class of Stock [Line Items]    
Shares, Granted 27,275,886 0
Shares, Cancelled/Forfeited (1,568,889)  
Shares, Unvested as of September 30, 2022 25,706,997  
Weighted Average Grant Date Fair Value, Granted $ 2.32  
Weighted Average Grant Date Fair Value, Cancelled/Forfeited 2.62  
Weighted Average Grant Date Fair Value, Unvested as of September 30, 2022 $ 2.30