Income Taxes - 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]
Current provision, federal	$ (153)	$ 26	$ (2,689)
Deferred provision, federal	6,077	4,799	(1,837)
Total provision, federal	5,924	4,825	(4,526)
Current provision, state and local	380	316	17
Deferred provision, state and local	389	2,834	994
Total provision, state and local	769	3,150	1,011
Current provision, foreign	1,374	1,512	731
Deferred provision, foreign	1,691	(4,356)	447
Total provision, foreign	3,065	(2,844)	1,178
Current provision	1,601	1,854	(1,941)
Deferred provision	8,157	3,277	(396)
Provision (benefit) for income taxes	$ 9,758	$ 5,131	$ (2,337)