Net Loss Per Share - Schedule of Earnings Per Share Basic and Diluted (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Earnings Per Share [Abstract]
Net loss	$ (6,094)	$ (11,691)
Weighted average common shares outstanding, basic and diluted	30,136,749	30,083,006
Net loss per common share, basic and diluted	$ (0.20)	$ (0.39)