Income Taxes - Summary of Components of Tax (Provision) Benefit (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Current
Federal		$ (230)		$ (1,099)
State	$ (83)	(661)	$ (306)	(1,620)
Deferred
Federal	5,940	(887)	9,239	1,311
State	2,524	1,613	3,550	3,334
Net (provision) benefit for income taxes	$ 8,381	$ (165)	$ 12,483	$ 1,926