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Derivative Financial Instruments Terphane Future Cash Flow Hedges (Details) - Terphane Ltda [Member] R$ in Thousands, $ in Thousands | Sep. 30, 2020 USD ($) | Sep. 30, 2020 BRL (R$)
--- | --- | ---
Derivative [Line Items] |  |
Derivative, Notional Amount | $ 18,450 | R$ 91,056
Percentage of Coverage Using Cash Flow Hedges | 54.00% | 54.00%
Foreign Currency Exchange Rate, Translation | 4.9353 | 4.9353
Oct-20 [Member] [Member] |  |
Derivative [Line Items] |  |
Derivative, Notional Amount | $ 2,200 | R$ 8,707
Percentage of Coverage Using Cash Flow Hedges | 77.00% | 77.00%
Foreign Currency Exchange Rate, Translation | 3.9579 | 3.9579
Nov-20 [Member] [Member] |  |
Derivative [Line Items] |  |
Derivative, Notional Amount | $ 2,200 | R$ 8,725
Percentage of Coverage Using Cash Flow Hedges | 77.00% | 77.00%
Foreign Currency Exchange Rate, Translation | 3.9660 | 3.9660
Dec-20 [Member] [Member] |  |
Derivative [Line Items] |  |
Derivative, Notional Amount | $ 2,050 | R$ 8,129
Percentage of Coverage Using Cash Flow Hedges | 72.00% | 72.00%
Foreign Currency Exchange Rate, Translation | 3.9653 | 3.9653
Jan-21 |  |
Derivative [Line Items] |  |
Derivative, Notional Amount | $ 1,000 | R$ 5,436
Percentage of Coverage Using Cash Flow Hedges | 50.00% | 50.00%
Foreign Currency Exchange Rate, Translation | 5.4358 | 5.4358
Feb-21 |  |
Derivative [Line Items] |  |
Derivative, Notional Amount | $ 1,000 | R$ 5,438
Percentage of Coverage Using Cash Flow Hedges | 50.00% | 50.00%
Foreign Currency Exchange Rate, Translation | 5.4379 | 5.4379
Mar-21 |  |
Derivative [Line Items] |  |
Derivative, Notional Amount | $ 1,000 | R$ 5,442
Percentage of Coverage Using Cash Flow Hedges | 50.00% | 50.00%
Foreign Currency Exchange Rate, Translation | 5.4417 | 5.4417
Apr-21 |  |
Derivative [Line Items] |  |
Derivative, Notional Amount | $ 1,000 | R$ 5,446
Percentage of Coverage Using Cash Flow Hedges | 50.00% | 50.00%
Foreign Currency Exchange Rate, Translation | 5.4462 | 5.4462
May-21 |  |
Derivative [Line Items] |  |
Derivative, Notional Amount | $ 1,000 | R$ 5,451
Percentage of Coverage Using Cash Flow Hedges | 50.00% | 50.00%
Foreign Currency Exchange Rate, Translation | 5.4508 | 5.4508
Jun-21 |  |
Derivative [Line Items] |  |
Derivative, Notional Amount | $ 1,000 | R$ 5,454
Percentage of Coverage Using Cash Flow Hedges | 50.00% | 50.00%
Foreign Currency Exchange Rate, Translation | 5.4539 | 5.4539
Jul-21 |  |
Derivative [Line Items] |  |
Derivative, Notional Amount | $ 1,000 | R$ 5,457
Percentage of Coverage Using Cash Flow Hedges | 50.00% | 50.00%
Foreign Currency Exchange Rate, Translation | 5.4566 | 5.4566
Aug-21 |  |
Derivative [Line Items] |  |
Derivative, Notional Amount | $ 1,000 | R$ 5,462
Percentage of Coverage Using Cash Flow Hedges | 50.00% | 50.00%
Foreign Currency Exchange Rate, Translation | 5.4624 | 5.4624
Sep-21 |  |
Derivative [Line Items] |  |
Derivative, Notional Amount | $ 1,000 | R$ 5,468
Percentage of Coverage Using Cash Flow Hedges | 50.00% | 50.00%
Foreign Currency Exchange Rate, Translation | 5.4675 | 5.4675
Oct-21 |  |
Derivative [Line Items] |  |
Derivative, Notional Amount | $ 1,000 | R$ 5,473
Percentage of Coverage Using Cash Flow Hedges | 50.00% | 50.00%
Foreign Currency Exchange Rate, Translation | 5.4733 | 5.4733
Nov-21 |  |
Derivative [Line Items] |  |
Derivative, Notional Amount | $ 1,000 | R$ 5,480
Percentage of Coverage Using Cash Flow Hedges | 50.00% | 50.00%
Foreign Currency Exchange Rate, Translation | 5.4799 | 5.4799
Dec-21 |  |
Derivative [Line Items] |  |
Derivative, Notional Amount | $ 1,000 | R$ 5,488
Percentage of Coverage Using Cash Flow Hedges | 50.00% | 50.00%
Foreign Currency Exchange Rate, Translation | 5.4876 | 5.4876

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