Net Loss per Share - Schedule of basic and diluted net loss per share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Numerator:
Net loss attributable to common stockholders ($ in thousands)	$ (34,319)	$ (103,627)
Denominator:
Weighted average common shares outstanding — basic (in shares)	128,715,031	75,791,557
Weighted average common shares outstanding - diluted (in shares)	128,715,031	75,791,557
Net loss per share attributable to common stockholders — basic (in dollars per share)	$ (0.27)	$ (1.37)
Net loss per share attributable to common stockholders - diluted (in dollars per share)	$ (0.27)	$ (1.37)