CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Loss	Accumulated Deficit
Beginning balance (in shares) at Dec. 31, 2021		124,107,500
Beginning balance at Dec. 31, 2021	$ 1,108,277	$ 124	$ 1,123,628	$ (638)	$ (14,837)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock for ESPP (in shares)		47,853
Issuance of common stock for ESPP	971		971
Issuance of restricted stock, net of forfeitures (in shares)		100,253
Issuance of restricted stock, net of forfeitures	(1,049)		(1,049)
Issuance of common stock for stock options (in shares)		466,609
Issuance of common stock for stock options	6,480	$ 1	6,479
Stock-based compensation expense - ESPP	249		249
Stock-based compensation expense - options and restricted stock	11,855		11,855
Net unrealized gain on marketable securities, net of tax	(2,371)			(2,371)
Net loss	(49,408)				(49,408)
Ending balance (in shares) at Mar. 31, 2022		124,722,215
Ending balance at Mar. 31, 2022	1,075,004	$ 125	1,142,133	(3,009)	(64,245)
Beginning balance (in shares) at Dec. 31, 2022		126,913,992
Beginning balance at Dec. 31, 2022	998,023	$ 127	1,160,882	(3,899)	(159,087)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock for ESPP (in shares)		96,733
Issuance of common stock for ESPP	811		811
Issuance of restricted stock, net of forfeitures (in shares)		114,738
Issuance of restricted stock, net of forfeitures	$ (147)		(147)
Issuance of common stock for stock options (in shares)	75,028	75,028
Issuance of common stock for stock options	$ 751		751
Stock issuance fees and expenses	(4)		(4)
Stock-based compensation expense - ESPP	275		275
Stock-based compensation expense - options and restricted stock	4,483		4,483
Net unrealized gain on marketable securities, net of tax	1,065			1,065
Net loss	(30,795)				(30,795)
Ending balance (in shares) at Mar. 31, 2023		127,200,491
Ending balance at Mar. 31, 2023	$ 974,462	$ 127	$ 1,167,051	$ (2,834)	$ (189,882)