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Goodwill and Intangible Assets, net - Schedule of Goodwill (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2018
USD ($)
Total Goodwill  
Balance at January 1, 2018 $ 0
Goodwill attributable to Quickthree Solutions, Inc. acquisition 16,935
Impairment charge (16,935)
Balance at December 31, 2018 $ 0