Net Loss per Share - Summary of Basic and Diluted Net Loss per Share Attributable to Common Stockholders (Detail) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Numerator:
Net loss	$ (89,756)	$ (78,280)
Deemed Dividend	0	(549)
Net loss attributable to common stockholders	$ (89,756)	$ (78,829)
Denominator:
Weighted average common shares outstanding, basic and diluted	30,895,756	22,386,122
Net loss per share, basic and diluted	$ (2.91)	$ (3.52)