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Intangible Assets, Net - Schedule of Intangible Assets (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2019
Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]    
Estimated Useful Life (Years) 12 years 1 month  
Accumulated Amortization $ 1,430  
Net Book Value at March 31, 2019 17,640  
Gross Carrying Amount at December 31, 2018   $ 19,070
Net Book Value at March 31, 2019 $ 17,640 18,068
Developed technology    
Finite-Lived Intangible Assets [Line Items]    
Estimated Useful Life (Years) 13 years  
Gross Carrying Amount at December 31, 2018   18,800
Accumulated Amortization $ 1,205  
Net Book Value at March 31, 2019 $ 17,595  
Customer relationships    
Finite-Lived Intangible Assets [Line Items]    
Estimated Useful Life (Years) 1 year  
Gross Carrying Amount at December 31, 2018   $ 270
Accumulated Amortization $ 225  
Net Book Value at March 31, 2019 $ 45