Share-Based Compensation - Summary of Stock Option Activity (Details) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Options Outstanding
Beginning balance (in shares)	21,843,781	25,087,416
Granted (in shares)	13,033,750	9,562,000
Exercised (in shares)	(72,334)	(5,589,084)
Expired (in shares)	(1,038,796)	(2,966,509)
Forfeited (in shares)	(526,037)	(4,250,042)
Ending balance (in shares)	33,240,364	21,843,781	25,087,416
Vested at end of period (in shares)	18,756,614
Expected to vest at end of period (in shares)	14,483,750
Weighted Average Exercise Price
Beginning balance (in dollars per share)	$ 1.74	$ 1.29
Granted (in dollars per share)	0.30	2.49
Exercised (in dollars per share)	0.53	1.50
Expired (in dollars per share)	2.08	1.69
Forfeited (in dollars per share)	1.75	1.10
Ending balance (in dollars per share)	1.17	$ 1.74	$ 1.29
Vested at end of period (in dollars per share)	1.57
Expected to vest at end of period (in dollars per share)	$ 0.65
Weighted Average Remaining Contractual Life (Years)
Outstanding	7 years 9 months 18 days	8 years 21 days	7 years 11 months 1 day
Vested at end of period (in years)	6 years 5 months 12 days
Expected to vest at end of period (in years)	9 years 6 months 10 days
Aggregated Intrinsic Value
Outstanding at beginning period	$ 4,596,393	$ 18,554,241
Exercised	0	7,731,175	$ 2,400,000
Outstanding at end of period	0	$ 4,596,393	$ 18,554,241
Vested at end of period	0
Expected to vest at end of period	$ 0