Income Taxes - Schedule of Provision for Income Taxes (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Current income tax (benefit) provision
Federal	$ (78)	$ (70)	$ (113)
State	494	937	1,086
Foreign	36	5	13
Total current income tax provision	452	872	986
Deferred income tax provision (benefit):
Federal	25,210	30,414	28,628
State	(1,964)	(2,414)	(3,900)
Total deferred income tax provision	23,246	28,000	24,728
Total income tax provision	$ 23,698	$ 28,872	$ 25,714