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Related Party Transactions (Narrative) (Details) - USD ($) $ in Thousands |  | 12 Months Ended
--- | --- | ---
Nov. 09, 2011 | Dec. 31, 2015 | Dec. 31, 2014
Related Party Transaction [Line Items] |  |  |
Miscellaneous |  | $ 66,299 | $ 102,170
Axionlog Distribution B.V. [Member] |  |  |
Related Party Transaction [Line Items] |  |  |
Revolving loan, related parties, borrowing capacity | $ 12,000 |  |
Revolving loan maturity date |  | Nov. 07, 2016 |
Miscellaneous |  | $ 1,729 | 14,901
Accounts payable, related party |  | 5,110 | 7,742
Lacoop, A.C. And Lacoop II, S. C. [Member] |  |  |
Related Party Transaction [Line Items] |  |  |
Notes receivable, related party |  | 0 | 224
Other receivables, related party |  | 142 | 2,580
Accounts payable, related party |  | 1,386 | 1,565
London Interbank Offered Rate (LIBOR) [Member] | Axionlog Distribution B.V. [Member] |  |  |
Related Party Transaction [Line Items] |  |  |
Debt instrument, basis spread on variable rate (as a percent) | 6.00% |  |
Miscellaneous [Member] | Axionlog Distribution B.V. [Member] |  |  |
Related Party Transaction [Line Items] |  |  |
Miscellaneous |  | $ 1,798 | $ 11,500

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