Stock-Based Compensation - Share-based Payment Arrangement, Option, Activity (Details) shares in Thousands	3 Months Ended
	Mar. 31, 2022 $ / shares shares
Number of Options
Outstanding beginning balance (in shares) | shares	25,425
Granted (in shares) | shares	3,961
Exercised (in shares) | shares	(723)
Forfeited (in shares) | shares	(451)
Outstanding ending balance (in shares) | shares	28,213
Weighted Average Exercise Price
Outstanding beginning balance (in dollars per share) | $ / shares	$ 5.30
Granted (in dollars per share) | $ / shares	11.25
Exercised (in dollars per share) | $ / shares	0.66
Forfeited (in dollars per share) | $ / shares	7.90
Outstanding ending balance (in dollars per share) | $ / shares	$ 6.21