Income Taxes - The Provision (Benefit) for Income Taxes (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Tax Disclosure [Abstract]
Federal	$ 383	$ (2,030)	$ 3,010
State and local	168	126	317
Current	551	(1,904)	3,327
Deferred	(8,848)	2,245	(30,810)
Effective income tax provision (benefit)	$ (8,297)	$ 341	$ (27,483)