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Income Taxes (Summary of Income Tax Examinations) (Details) | 6 Months Ended
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Mar. 31, 2017
United States [Member] | Minimum [Member] |
Income Tax Examination [Line Items] |
Tax years remaining subject to examination | 2013
United States [Member] | Maximum [Member] |
Income Tax Examination [Line Items] |
Tax years remaining subject to examination | 2016
Canada [Member] | Minimum [Member] |
Income Tax Examination [Line Items] |
Tax years remaining subject to examination | 2012
Canada [Member] | Maximum [Member] |
Income Tax Examination [Line Items] |
Tax years remaining subject to examination | 2016
France [Member] | Minimum [Member] |
Income Tax Examination [Line Items] |
Tax years remaining subject to examination | 2012
France [Member] | Maximum [Member] |
Income Tax Examination [Line Items] |
Tax years remaining subject to examination | 2016
Germany [Member] | Minimum [Member] |
Income Tax Examination [Line Items] |
Tax years remaining subject to examination | 2009
Germany [Member] | Maximum [Member] |
Income Tax Examination [Line Items] |
Tax years remaining subject to examination | 2016
Italy [Member] | Minimum [Member] |
Income Tax Examination [Line Items] |
Tax years remaining subject to examination | 2011
Italy [Member] | Maximum [Member] |
Income Tax Examination [Line Items] |
Tax years remaining subject to examination | 2016
Japan [Member] | Minimum [Member] |
Income Tax Examination [Line Items] |
Tax years remaining subject to examination | 2016
Switzerland [Member] | Minimum [Member] |
Income Tax Examination [Line Items] |
Tax years remaining subject to examination | 2006
Switzerland [Member] | Maximum [Member] |
Income Tax Examination [Line Items] |
Tax years remaining subject to examination | 2016

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- Definition Tax year that remains open to examination under enacted tax laws, in CCYY format. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32718-109319 + Details
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