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Income Taxes - Schedule of Components of Provision (Benefit) for Income Taxes (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Current:      
Federal $ 144 $ (690) $ (1,848)
State (473) 147 284
Foreign 111 124 112
Current, Total (218) (419) (1,452)
Deferred:      
Federal (274) (6) 4,491
Foreign 91    
Deferred Income Tax Expense (Benefit) (183) (6) 4,491
Provision (benefit) for income taxes $ (401) $ (425) $ 3,039