Stock Based Compensation - Stock option activity (Details)	3 Months Ended
	Mar. 31, 2022 $ / shares shares
Number of Shares
Outstanding at beginning of period (in shares) | shares	3,461,870
Granted (in shares) | shares	999,315
Exercised (in shares) | shares	(24,891)
Forfeited (in shares) | shares	(23,627)
Outstanding at end period (in shares) | shares	4,412,667
Unvested shares related to early exercises of stock options (in shares) | shares	2,385,606
Weighted Average Exercise Price
Weighted-average exercise price outstanding at beginning period (in dollars per share) | $ / shares	$ 10.38
Weighted average exercise price granted (in dollars per share) | $ / shares	11.67
Weighted average exercise price exercised (in dollars per share) | $ / shares	2.00
Weighted average exercise price forfeited (in dollars per share) | $ / shares	10.73
Weighted average exercise price outstanding at end period (in dollars per share) | $ / shares	10.72
Weighted average exercise price vested and exercisable (in dollars per share) | $ / shares	$ 6.25