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Summary of Significant Accounting Policies - Goodwill and Other Intangible Assets (Details) - Goodwill and Indefinite-lived Intangible Assets - Income Approach Valuation Technique | 12 Months Ended
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Sep. 30, 2016
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Fair Value Inputs, Assets, Quantitative Information [Line Items] |
Discount rates used for reporting unit valuations | 10.00%
Maximum |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |
Discount rates used for reporting unit valuations | 14.00%

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- 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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- Definition Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 + Details
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