Net Loss Per Share - Diluted Net Loss Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Reconciliation of net loss attributable to common stockholders for basic and diluted net loss per share
Net loss attributable to common stockholders, basic		$ (18,766)		$ (31,308)
Interest expense Convertible Notes		1,141		2,264
Change in fair value of derivative liability		(2,773)		(9,731)
Net loss attributable to common stockholders, diluted		$ (20,398)		$ (38,775)
Weighted average common shares outstanding, basic	78,047,705	76,764,296	77,718,823	76,755,028
Shares issuable upon conversion of Convertible Notes, as if converted		5,769,232		5,769,232
Weighted average common shares outstanding, diluted	78,047,705	82,533,528	77,718,823	82,524,260
Net loss per share attributable to common stockholders, diluted	$ (0.26)	$ (0.25)	$ (0.66)	$ (0.47)