Quarterly report pursuant to Section 13 or 15(d)

EQUITY-BASED COMPENSATION - Status of nonvested stock options (Details)

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EQUITY-BASED COMPENSATION - Status of nonvested stock options (Details)
9 Months Ended
Sep. 30, 2021
$ / shares
shares
Number of Stock Options  
Beginning balance (in shares) | shares 10,987,000
Granted (in shares) | shares 921,000
Vested (in shares) | shares (6,681,000)
Forfeited (in shares) | shares (48,000)
Ending balance (in shares) | shares 5,179,000
Weighted-Average Grant Date Fair Value  
Beginning balance (in dollars per share) | $ / shares $ 1.41
Granted (in dollars per share) | $ / shares 3.54
Vested (in dollars per share) | $ / shares 1.29
Expired/forfeited (in dollars per share) | $ / shares 0.67
Ending balance (in dollars per share) | $ / shares $ 1.94