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Capitalized Software Development Costs - Schedule of Expected Amortization of Capitalized Software Development Costs (Details) - USD ($)
$ in Thousands
Dec. 31, 2017
Dec. 31, 2016
Capitalized Computer Software Net [Abstract]    
2018 $ 5,076  
2019 3,433  
2020 1,496  
Net carrying amount $ 10,005 $ 8,792