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Stock-Based Compensation - Restricted Stock Units (Details) - Restricted stock units outstanding
 9 Months Ended
Sep. 30, 2023
$ / shares
shares
Shares  
Balance, beginning of period (in shares) | shares 3,716,061
Granted (in shares) | shares 4,214,704
Vested (in shares) | shares (1,877,745)
Forfeited (in shares) | shares (239,510)
Balance, end of period (in shares) | shares 5,813,510
Weighted-average grant date fair value per share  
Balance, beginning of period (in dollars per share) | $ / shares $ 6.60
Granted (in dollars per share) | $ / shares 5.04
Vested (in dollars per share) | $ / shares 6.23
Forfeited (in dollars per share) | $ / shares 5.44
Balance, end of period (in dollars per share) | $ / shares $ 5.64