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Commitments and Contingencies (Details) - Unfavorable Regulatory Action [Member] $ in Millions	Jun. 30, 2016 USD ($)	Oct. 31, 2015 USD ($)	Dec. 31, 2000 assessment
Raw Materials Assessment [Member]
Loss Contingencies [Line Items]
Number of assessments from the tax authorities regarding ICMS taxes | assessment			2
Number of tax assessments related to periods that predated acquisition and are covered by indemnification | assessment			1
Electricity Assessment [Member]
Loss Contingencies [Line Items]
Number of assessments from the tax authorities regarding ICMS taxes | assessment			3
Maximum [Member] | Raw Materials Assessment [Member]
Loss Contingencies [Line Items]
Loss contingency, range of possible loss		$ 16.0
Maximum [Member] | Raw Materials Assessment 2 [Member] [Member]
Loss Contingencies [Line Items]
Loss contingency, range of possible loss	$ 13.0
Maximum [Member] | Second Electricity Assessment [Member]
Loss Contingencies [Line Items]
Loss contingency, range of possible loss	8.5
Maximum [Member] | Electricity Assessment One [Member]
Loss Contingencies [Line Items]
Loss contingency, range of possible loss	5.0
Maximum [Member] | Third Electricity Assessment [Member]
Loss Contingencies [Line Items]
Loss contingency, range of possible loss	$ 4.0

X

- Definition

The number of assessments from the tax authorities of the State of Rio de Janeiro for unpaid Imposto sobre circulacao de Mercadorias e Servicos (or ICMS) taxes, a form of value-added tax in Brazil.

+ References

No definition available.

+ Details

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X

- Definition

Number of the tax assessments by the State of Rio de Janeiro that are for periods prior to the acquisition of Pirahy and are covered, in part, by an indemnification from the sellers.

+ References

No definition available.

+ Details

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X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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X

- Definition

Reflects the estimated amount of loss from the specified contingency as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14435-108349

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 9
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14557-108349

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