Income Taxes - Components of Income Taxes (Benefit) (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Current:
State		$ (691)	$ (816)
Total Current		(691)	(816)
Deferred:
Benefit from income taxes	$ 0	$ (691)	$ (816)