Annual report pursuant to Section 13 and 15(d)

Income Taxes - Domestic and Foreign Components of (Loss) Income Before Provision for Income Taxes (Detail)

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Income Taxes - Domestic and Foreign Components of (Loss) Income Before Provision for Income Taxes (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Income Tax Disclosure [Abstract]      
Domestic $ 32,190 $ 12,424 $ 23,817
Foreign 2,110 2,817 3,669
Income before income taxes $ 34,300 $ 15,241 $ 27,486