Net Loss per Share - Schedule of basic and diluted net loss per share (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Numerator:
Net loss attributable to common stockholders ($ in thousands)	$ (216,459)	$ (120,097)
Denominator:
Weighted average common shares outstanding — basic (in shares)	114,609,563	8,890,631
Weighted average common shares outstanding - diluted (in shares)	114,609,563	8,890,631
Net loss per share attributable to common stockholders — basic (in dollars per share)	$ (1.89)	$ (13.51)
Net loss per share attributable to common stockholders - diluted (in dollars per share)	$ (1.89)	$ (13.51)