Net Loss per Common Share - Computation of Basic and Diluted Net Loss per Common Share (Details) - USD ($)	3 Months Ended						9 Months Ended
	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2022	Sep. 30, 2021
Earnings Per Share [Abstract]
Net loss	$ (44,823,212)	$ (41,438,516)	$ (39,632,311)	$ (34,882,677)	$ (32,284,209)	$ (29,259,970)	$ (125,894,039)	$ (96,426,856)
Weighted average common shares outstanding, basic	41,704,362			37,680,966			39,715,261	37,569,416
Weighted average common shares outstanding, diluted	41,704,362			37,680,966			39,715,261	37,569,416
Net loss per common share, basic	$ (1.07)			$ (0.93)			$ (3.17)	$ (2.57)
Net loss per common share, diluted	$ (1.07)			$ (0.93)			$ (3.17)	$ (2.57)