XML 56 R43.htm IDEA: XBRL DOCUMENT v3.21.1
Stock-Based Compensation - Summary of Restricted Stock Units Activity (Detail)
3 Months Ended
Mar. 31, 2021
$ / shares
shares
Share-based Payment Arrangement [Abstract]  
Number of Shares, Opening Balance | shares 32,556,160
Number of Shares, Granted | shares 18,088,710
Number of Shares, Vested and converted to common stock | shares 0
Number of Shares, Forfeited | shares (371,945)
Number of Shares, Ending Balance | shares 50,272,925
Weighted Average Grant Date Fair Value, Opening Balance | $ / shares $ 6.75
Weighted Average Grant Date Fair Value, Granted | $ / shares 12.61
Weighted Average Grant Date Fair Value, Vested and converted to common stock | $ / shares 0
Weighted Average Grant Date Fair Value, Forfeited | $ / shares 11.80
Weighted Average Grant Date Fair Value, Ending Balance | $ / shares $ 8.82