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Investments (Details)
$ in Thousands
3 Months Ended
Mar. 31, 2017
USD ($)
Mar. 31, 2016
USD ($)
Dec. 31, 2016
USD ($)
Dec. 23, 2016
USD ($)
Equity Method Investment        
Equity Method Investment, Ownership Percentage       25.00%
Equity investment $ 2,607 $ 0 $ 2,500 $ 2,500
Loss in equity method investment, before tax $ 28 $ 0    
Foreign Currency Exchange Rate, Translation 135,000.000