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Related Party Transactions (Details) - Unconsolidated Affiliates - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Related Party Transaction [Line Items]      
Sales to unconsolidated affiliates $ 20,068 $ 35,094 $ 29,514
Purchases from unconsolidated affiliates 210,351 256,701 $ 209,266
Receivables from related parties 7,163 14,348  
Payables to related parties $ 35,502 $ 68,357