Net Loss Per Share Attributable to Common Stockholders - Earnings per share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Numerator:
Net loss	$ (24,836)	$ (15,022)
Denominator:
Weighted average common shares outstanding, basic (in shares)	114,054,597	100,817,385
Weighted average common shares outstanding, diluted (in shares)	114,054,597	100,817,385
Net Loss per Share Attributable to Common Stockholders, basic (in dollars per share)	$ (0.22)	$ (0.15)
Net Loss per Share Attributable to Common Stockholders, diluted (in dollars per share)	$ (0.22)	$ (0.15)