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Intangible Asset, Net - Components (Details) - USD ($)
$ in Thousands
Jun. 30, 2016
Dec. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract]    
Purchased technology $ 8,050 $ 8,050
Less: Accumulated amortization (3,283) (2,958)
Intangible asset, net $ 4,767 $ 5,092