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Income Taxes - Pre-Tax Income (Loss) (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Income Tax Disclosure [Abstract]      
Domestic $ 16,819 $ 6,820 $ (20,863)
Foreign 0 5,942 6,075
Income (Loss) Before Provision (Benefit) for Income Taxes $ 16,819 $ 12,762 $ (14,788)