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Related Party Transactions (Summary of Related Party Outstanding Balances) (Details) - USD ($) $ in Thousands | Dec. 31, 2016 | Dec. 31, 2015
--- | --- | ---
Related Party Transaction [Line Items] |  |
Miscellaneous | $ 89,661 | $ 62,524
Axionlog Distribution B.V. [Member] |  |
Related Party Transaction [Line Items] |  |
Accounts and notes receivable | 0 | 1,854
Other receivables | 1,050 | 2,266
Miscellaneous | 3,612 | 1,729
Accounts payable | $ (10,355) | $ (5,110)

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