CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Accumulated Other Comprehensive (Loss) Income	Accumulated Deficit
Balance at Dec. 31, 2020	$ 353,064	$ 7	$ 478,272	$ (112)	$ (125,103)
Balance, Shares at Dec. 31, 2020		61,931,255
Stock-based compensation	43,975		43,975
Issuance of common stock, upon vesting of restricted stock, Shares		1,609,479
Issuance of common stock, upon exercise of common stock	232		232
Issuance of common stock, upon exercise of common stock, Shares		25,152
Unrealized (loss) gain on available-for-sale securities	1			1
Foreign currency translation adjustment	(44)			(44)
Net loss	(171,962)				(171,962)
Balance at Dec. 31, 2021	225,266	$ 7	522,479	(155)	(297,065)
Balance, Shares at Dec. 31, 2021		63,565,886
Stock-based compensation	41,315		41,315
Issuance of common stock, upon vesting of restricted stock, Shares		1,912,210
Purchase of common stock under the 2020 Employee Stock Purchase Plan	536		536
Purchase of common stock under the 2020 employee stock purchase plan, Shares		157,052
Issuance of common stock in registered direct offering, net of issuance costs	126,425	$ 2	126,423
Issuance of common stock in registered direct offering, net of issuance costs, Shares		27,458,095
Unrealized (loss) gain on available-for-sale securities	(313)			(313)
Net loss	(168,710)				(168,710)
Balance at Dec. 31, 2022	$ 224,519	$ 9	$ 690,753	$ (468)	$ (465,775)
Balance, Shares at Dec. 31, 2022		93,093,243