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Income Taxes - (Loss) Income Before Income Taxes and Equity Gains (Losses) in Joint Venture (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Income Tax Disclosure [Abstract]    
Domestic $ (14,335) $ (48,169)
Foreign 5,968 4,362
Loss from continuing operations before income taxes and gain on sale of joint venture $ (8,367) $ (43,807)