Quarterly report pursuant to Section 13 or 15(d)

STOCK-BASED COMPENSATION - Summary of Stock Option Activity (Details)

v3.21.2
STOCK-BASED COMPENSATION - Summary of Stock Option Activity (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
9 Months Ended
Sep. 30, 2021
No. of Options  
Beginning balance outstanding (shares) 18,090
Granted (shares) 128
Exercised (shares) (2,440)
Forfeited (shares) (383)
Expired (shares) (65)
Ending balance outstanding (shares) 15,330
Unvested (shares) 4,837
Exercisable (shares) 10,493
Weighted-Average Exercise Price  
Beginning balance outstanding (USD per share) $ 0.85
Granted (USD per share) 7.85
Exercised (USD per share) 0.85
Forfeited (USD per share) 1.82
Expired (USD per share) 1.52
Ending balance outstanding (USD per share) 0.88
Unvested (USD per share) 0.96
Exercisable (USD per share) $ 0.88
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]  
Outstanding - Weighted-Average Remaining Term (in Years) 6 years 7 months 6 days
Unvested - Weighted-Average Remaining Term (in Years) 7 years 8 months 12 days
Exercisable - Weighted-Average Remaining Term (in Years) 6 years
Outstanding - Aggregate Intrinsic Value $ 17,042
Unvested - Aggregate Intrinsic Value 7,670
Exercisable - Aggregate Intrinsic Value $ 9,373