Income Taxes - Provisions (Benefit) for Income Taxes (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Current:
Federal	$ (21)	$ 158
State	740	847
Total Current	719	1,005
Deferred:
Federal	(1,982)	2,846
State	653	330
Total Deferred	(1,329)	3,176
Provision (benefit) for income taxes	$ (610)	$ 4,181