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Derivative Financial Instruments Terphane Future Cash Flow Hedges (Details) - Terphane Ltda [Member] R$ in Thousands, $ in Thousands	Jun. 30, 2021 USD ($)	Jun. 30, 2021 BRL (R$)
Derivative [Line Items]
Derivative, Notional Amount	$ 8,465	R$ 46,619
Percentage of Coverage Using Cash Flow Hedges	78.00%	78.00%
Foreign Currency Exchange Rate, Translation	5.5073	5.5073
Jul-21
Derivative [Line Items]
Derivative, Notional Amount	$ 1,450	R$ 7,967
Percentage of Coverage Using Cash Flow Hedges	80.00%	80.00%
Foreign Currency Exchange Rate, Translation	5.4945	5.4945
Aug-21
Derivative [Line Items]
Derivative, Notional Amount	$ 1,430	R$ 7,864
Percentage of Coverage Using Cash Flow Hedges	79.00%	79.00%
Foreign Currency Exchange Rate, Translation	5.4993	5.4993
Sep-21
Derivative [Line Items]
Derivative, Notional Amount	$ 1,520	R$ 8,376
Percentage of Coverage Using Cash Flow Hedges	84.00%	84.00%
Foreign Currency Exchange Rate, Translation	5.5105	5.5105
Oct-21
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	$ 1,495	R$ 8,256
Percentage of Coverage Using Cash Flow Hedges	83.00%	83.00%
Foreign Currency Exchange Rate, Translation	5.5224	5.5224
Dec-21
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

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+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
-URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5580258-113959

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 830
-SubTopic 30
-Section S99
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6897108&loc=SL6897125-166521

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 830
-SubTopic 30
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6450520&loc=d3e32618-110901

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