Income Taxes - Schedule of Income Tax benefit (Provisions) from Continuing Operations (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Tax Disclosure [Abstract]
Income before provision for income taxes	$ 1,082	$ 1,199	$ 2,263	$ (95)	$ 1,439	$ 1,672	$ 261	$ 2,947	$ 4,449	$ 6,319	$ 3,672
Benefit (provision) for income taxes	$ 56	$ (1,015)	$ (668)	$ 36	$ (422)	$ (599)	$ (92)	$ (1,083)	$ (1,591)	$ (2,196)	$ 36,483
Effective tax rate									35.80%	34.80%	(993.50%)