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Fair Value Measurements Recurring Fair Value Measurements by Level (Details) - Fair Value, Measurements, Recurring [Member] - USD ($) $ in Thousands | May 31, 2016 | Aug. 31, 2015
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Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Other Assets, Fair Value Disclosure | $ 11,288 | $ 10,905
Assets, Fair Value Disclosure | 672,575 | 596,917
Liabilities, Fair Value Disclosure | 511,292 | 546,751
Fair Value, Inputs, Level 1 [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Other Assets, Fair Value Disclosure | 11,288 | 10,905
Assets, Fair Value Disclosure | 131,266 | 130,452
Liabilities, Fair Value Disclosure | 54,705 | 58,873
Fair Value, Inputs, Level 2 [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Other Assets, Fair Value Disclosure | 0 | 0
Assets, Fair Value Disclosure | 541,309 | 466,465
Liabilities, Fair Value Disclosure | 431,926 | 411,896
Fair Value, Inputs, Level 3 [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Other Assets, Fair Value Disclosure | 0 | 0
Assets, Fair Value Disclosure | 0 | 0
Liabilities, Fair Value Disclosure | $ 24,661 | $ 75,982

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- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + 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 (a) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
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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 Fair value of financial and nonfinancial obligations. + 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 (a) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
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