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Stock-Based Compensation - Summary of Restricted Stock Awards Outstanding (Details) - Restricted stock
shares in Thousands
9 Months Ended
Sep. 30, 2023
$ / shares
shares
Shares  
Unvested at beginning of period (in shares) | shares 1,679
Granted (in shares) | shares 1,945
Vested (in shares) | shares (770)
Canceled and forfeited (in shares) | shares (109)
Unvested at end of period (in shares) | shares 2,745
Weighted average grant date fair value  
Unvested at beginning of period (in dollars per share) | $ / shares $ 4.75
Granted (in dollars per share) | $ / shares 1.58
Vested (in dollars per share) | $ / shares 4.30
Canceled and forfeited (in dollars per share) | $ / shares 3.78
Unvested at end of period (in dollars per share) | $ / shares $ 2.67