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Condensed Financial Information (Details) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Jun. 30, 2018
Dec. 31, 2017
Schedule of Equity Method Investments [Line Items]        
Inflationary Percentage 100.00%      
Equity Method Investment $ 22,471     $ 25,690
Financial Statement Line Items With Differences In Reported Amount And Reporting Currency Denominated Amounts [Line Items]        
Currency Conversion impacts of hyper-inflationary accounting and remeasurement losses During the three and nine months ended September 30, 2018, the Company recorded $0.5 million and $0.8 million of remeasurement losses associated with the applicable currency conversions related to Venezuela and Argentina. During the three and nine months ended September 30, 2017, the Company recorded less than $0.1 million and $0.4 million of remeasurement losses related to Venezuela.    
Kelko (Venezuela) [Member]        
Schedule of Equity Method Investments [Line Items]        
Equity Method Investment     $ 100  
Argentina Assets Total [Member]        
Concentration Risk [Line Items]        
Concentration Risk, Percentage 1.00%      
Argentina Sales Revenue Net [Member]        
Concentration Risk [Line Items]        
Concentration Risk, Percentage 1.00%