Quarterly report pursuant to Section 13 or 15(d)

STOCK BASED COMPENSATION - Restricted Stock Units (Details)

v3.21.2
STOCK BASED COMPENSATION - Restricted Stock Units (Details)
$ / shares in Units, shares in Thousands, $ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2021
USD ($)
$ / shares
shares
Sep. 30, 2021
USD ($)
$ / shares
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Weighted-average period   2 years 8 months 12 days
Restricted Stock Units    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Vesting period   4 years
Cliff Vesting Period   1 year
Unrecognized compensation costs, non-vested RSUs | $ $ 90.1 $ 90.1
Weighted-average period   3 years 6 months
Expenses recognized | $ $ 6.7 $ 10.1
Shares Subject to Vesting    
Balance at beginning of period, unvested shares (in shares) | shares   683
Granted (in shares) | shares   7,983
Vested (in shares) | shares   (304)
Cancelled/Forfeited | shares   (51)
Balance at end of period, unvested shares (in shares) | shares 8,311 8,311
Weighted Average Grant Date Fair Value    
Balance at beginning of Period, unvested shares (in dollars per share) | $ / shares   $ 8.02
Granted (in dollars per share) | $ / shares   12.53
Vested (in dollars per share) | $ / shares   11.63
Cancelled/Forfeited | $ / shares   13.01
Balance at end of Period, unvested shares (in dollars per share) | $ / shares $ 12.24 $ 12.24