Schedule of Net Revenues and Operating Results (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Discontinued Operation, Additional Disclosures [Abstract]
Net revenues	$ 0	$ 0	$ 0	$ (300)
Income (loss) before income taxes	0	0	0	(300)
Income tax benefit	0	0	0	100
Discontinued operations, net of tax	$ 0	$ 0	$ 0	$ (216)