Summary of Significant Accounting Policies - Computation of Basic and Diluted Loss Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Numerator:
Net loss	$ (144,326)	$ (78,994)
Denominator:
Weighted average common shares outstanding	96,197	67,020
Net loss per share, basic and diluted	$ (1.50)	$ (1.18)