Net Loss Per Share - Computation of Net Loss Per Common 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
Numerator:
Net loss	$ (17,121)	$ (26,938)	$ (43,894)	$ (55,009)
Denominator:
Weighted average common shares outstanding - basic (in shares)	214,951,127	145,544,372	211,009,029	138,279,945
Weighted average common shares outstanding - diluted (in shares)	214,951,127	145,544,372	211,009,029	138,279,945
Net loss per share of common stock - basic (in dollars per share)	$ (0.08)	$ (0.19)	$ (0.21)	$ (0.40)
Net loss per share of common stock - diluted (in dollars per share)	$ (0.08)	$ (0.19)	$ (0.21)	$ (0.40)