Income Taxes - Provision (Benefit) for Income Taxes (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Current
Federal	$ (100)	$ 200	$ (400)
State	9,400	500	600
Foreign	1,900	1,500	500
Gross	11,200	2,200	700
Deferred
Federal	2,900	5,000	70,100
State	(4,000)	2,200	12,500
Foreign	(1,900)	(1,500)	(700)
Gross	(3,000)	5,700	81,900
Total provision (benefit) for taxes	$ 8,158	$ 7,877	$ 82,612