Net Loss Per Share - Computation of Net Loss Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Numerator:
Net loss	$ (67,207)	$ (158,165)	$ (94,313)
Denominator:
Weighted average common shares outstanding - basic (in shares)	158,690,083	104,205,645	89,582,138
Weighted average common shares outstanding - diluted (in shares)	158,690,083	104,205,645	89,582,138
Net loss per share - basic (in dollars per share)	$ (0.42)	$ (1.52)	$ (1.05)
Net loss per share - diluted (in dollars per share)	$ (0.42)	$ (1.52)	$ (1.05)