Other Noncurrent Assets, Net - Summary of Other Noncurrent Assets (Detail) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract]
Restricted cash	$ 1,420	$ 1,420
Assets held for sale	590	590
Other	484	133
Total	$ 2,494	$ 2,143