Related Party Transactions (Details) - Unconsolidated Affiliates - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Related Party Transaction [Line Items]
Sales to unconsolidated affiliates	$ 4,465	$ 4,970	$ 14,128	$ 20,608
Purchases from unconsolidated affiliates	41,304	$ 60,136	160,420	$ 186,111
Receivables from unconsolidated affiliates	3,041		3,041		$ 14,348
Payables to unconsolidated affiliates	$ 32,699		$ 32,699		$ 68,357

Amount for accounts payable to related parties.

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No definition available.

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