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Legal Proceedings (Details) R$ in Millions, $ in Millions	Mar. 22, 2018 USD ($)	Feb. 25, 2015 USD ($)	Feb. 25, 2015 BRL (R$)	Jan. 13, 2015 USD ($)	Jan. 13, 2015 BRL (R$)	Jun. 30, 2018 USD ($)
Income Tax Examination [Line Items]
Accrued estimated losses						$ 0.2
Brazilian Federal Tax Authorities [Member]
Income Tax Examination [Line Items]
Assessments sought again entity	$ 5.3	$ 8.6	R$ 33.3	$ 3.7	R$ 14.4
Reduction in principal, penalties and interest (percent)	38.00%

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Loss Contingency, Reduction in Damages Sought, Percent

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Amount of loss contingency liability expected to be resolved within one year or the normal operating cycle, if longer.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14326-108349

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The value (monetary amount) of the award the plaintiff seeks in the legal matter.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14326-108349

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-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 9
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-URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14557-108349

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-Name Accounting Standards Codification
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-Section 50
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