Income Taxes (Textual) (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Income Tax Disclosure [Abstract]
Valuation allowance	$ 18,600
State tax expense	$ 22	$ (2)	$ (43)	$ (37)