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Investments in Privately Held Companies - Minority Investment Entities (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Summarized income information of all the minority investment entities that are not consolidated and accounted for under the equity method [Abstract]    
Net revenue $ 5,455 $ 3,507
Gross profit 3,722 46
Operating loss (837) (1,118)
Net loss $ (1,705) $ (1,708)