XML 59 R49.htm IDEA: XBRL DOCUMENT v3.22.1
Stock-based Compensation - Summary of Restricted Stock Unit Activity (Detail) - RSU
3 Months Ended
Mar. 31, 2022
$ / shares
shares
Number of Units  
Unvested at beginning of period (in shares) | shares 3,577,000
Granted (in shares) | shares 4,910,000
Cancelled/forfeited (in shares) | shares (131,000)
Vested (in shares) | shares (398,000)
Unvested at ending of period (in shares) | shares 7,958,000
Weighted-
Average
Grant-
Date Fair
Value  
Unvested at beginning of period (in dollars per share) | $ / shares $ 21.52
Granted (in dollars per share) | $ / shares 14.15
Cancelled/forfeited (in dollars per share) | $ / shares 13.35
Vested (in dollars per share) | $ / shares 17.87
Unvested at ending of period (in dollars per share) | $ / shares $ 17.29