Income Taxes - Schedule of Provision for (Benefit from) Income Taxes (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Current income tax provision
Federal	$ (136)	$ (77)	$ (99)
State	1,020	1,580	1,113
Foreign	5	27	7
Total current income tax provision	889	1,530	1,021
Deferred income tax (benefit) provision:
Federal	(19,718)	21,825	13,019
State	(11,696)	16,173	3,875
Total deferred income tax (benefit) provision	(31,414)	37,998	16,894
Total income tax (benefit) provision	$ (30,525)	$ 39,528	$ 17,915