Net loss Per Share - Basic and Diluted Net Loss per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Earnings Per Share [Abstract]
Net loss	$ (13,161)	$ (18,253)	$ (28,834)	$ (28,310)
Net loss	$ (13,161)	$ (18,253)	$ (28,834)	$ (28,310)
Basic weighted-average shares outstanding (in shares)	209,809,994	198,137,420	205,889,651	190,892,223
Basic net loss per share (in dollars per share)	$ (0.06)	$ (0.09)	$ (0.14)	$ (0.15)
Diluted loss per share (in dollars per share)	$ (0.06)	$ (0.09)	$ (0.14)	$ (0.15)