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Derivative Financial Instruments Terphane Future Cash Flow Hedges (Details) - Terphane Ltda [Member] R$ in Thousands, $ in Thousands | Sep. 30, 2021 USD ($) | Sep. 30, 2021 BRL (R$)
--- | --- | ---
Derivative [Line Items] |  |
Derivative, Notional Amount | $ 24,456 | R$ 134,781
Percentage of Coverage Using Cash Flow Hedges | 75.00% | 75.00%
Foreign Currency Exchange Rate, Translation | 5.5112 | 5.5112
Oct-20 [Member] [Member] |  |
Derivative [Line Items] |  |
Derivative, Notional Amount | $ 1,400 | R$ 7,714
Percentage of Coverage Using Cash Flow Hedges | 78.00% | 78.00%
Foreign Currency Exchange Rate, Translation | 5.5100 | 5.5100
Nov-21 |  |
Derivative [Line Items] |  |
Derivative, Notional Amount | $ 1,784 | R$ 10,097
Percentage of Coverage Using Cash Flow Hedges | 81.00% | 81.00%
Foreign Currency Exchange Rate, Translation | 5.6597 | 5.6597
Aug-21 |  |
Derivative [Line Items] |  |
Derivative, Notional Amount | $ 1,708 | R$ 9,489
Percentage of Coverage Using Cash Flow Hedges | 76.00% | 76.00%
Foreign Currency Exchange Rate, Translation | 5.5560 | 5.5560
Jun-21 |  |
Derivative [Line Items] |  |
Derivative, Notional Amount | $ 1,596 | R$ 8,760
Percentage of Coverage Using Cash Flow Hedges | 70.00% | 70.00%
Foreign Currency Exchange Rate, Translation | 5.4890 | 5.4890
Nov-20 [Member] [Member] |  |
Derivative [Line Items] |  |
Derivative, Notional Amount | $ 1,495 | R$ 8,256
Percentage of Coverage Using Cash Flow Hedges | 83.00% | 83.00%
Foreign Currency Exchange Rate, Translation | 5.5224 | 5.5224
Dec-20 [Member] [Member] |  |
Derivative [Line Items] |  |
Derivative, Notional Amount | $ 1,170 | R$ 6,442
Percentage of Coverage Using Cash Flow Hedges | 65.00% | 65.00%
Foreign Currency Exchange Rate, Translation | 5.5060 | 5.5060
Jan-21 |  |
Derivative [Line Items] |  |
Derivative, Notional Amount | $ 1,677 | R$ 8,948
Percentage of Coverage Using Cash Flow Hedges | 72.00% | 72.00%
Foreign Currency Exchange Rate, Translation | 5.3360 | 5.3360
Feb-21 |  |
Derivative [Line Items] |  |
Derivative, Notional Amount | $ 1,751 | R$ 9,391
Percentage of Coverage Using Cash Flow Hedges | 75.00% | 75.00%
Foreign Currency Exchange Rate, Translation | 5.3631 | 5.3631
Mar-21 |  |
Derivative [Line Items] |  |
Derivative, Notional Amount | $ 1,662 | R$ 8,959
Percentage of Coverage Using Cash Flow Hedges | 72.00% | 72.00%
Foreign Currency Exchange Rate, Translation | 5.3905 | 5.3905
Apr-21 |  |
Derivative [Line Items] |  |
Derivative, Notional Amount | $ 1,615 | R$ 8,761
Percentage of Coverage Using Cash Flow Hedges | 70.00% | 70.00%
Foreign Currency Exchange Rate, Translation | 5.4247 | 5.4247
May-21 |  |
Derivative [Line Items] |  |
Derivative, Notional Amount | $ 1,647 | R$ 8,984
Percentage of Coverage Using Cash Flow Hedges | 72.00% | 72.00%
Foreign Currency Exchange Rate, Translation | 5.4545 | 5.4545
Jul-21 |  |
Derivative [Line Items] |  |
Derivative, Notional Amount | $ 1,719 | R$ 9,489
Percentage of Coverage Using Cash Flow Hedges | 76.00% | 76.00%
Foreign Currency Exchange Rate, Translation | 5.5200 | 5.5200
Sep-21 |  |
Derivative [Line Items] |  |
Derivative, Notional Amount | $ 1,780 | R$ 9,953
Percentage of Coverage Using Cash Flow Hedges | 80.00% | 80.00%
Foreign Currency Exchange Rate, Translation | 5.5915 | 5.5915
Oct-21 |  |
Derivative [Line Items] |  |
Derivative, Notional Amount | $ 1,793 | R$ 10,088
Percentage of Coverage Using Cash Flow Hedges | 81.00% | 81.00%
Foreign Currency Exchange Rate, Translation | 5.6264 | 5.6264
Dec-21 |  |
Derivative [Line Items] |  |
Derivative, Notional Amount | $ 1,659 | R$ 9,450
Percentage of Coverage Using Cash Flow Hedges | 76.00% | 76.00%
Foreign Currency Exchange Rate, Translation | 5.6962 | 5.6962

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