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Goodwill And Other Intangible Assets (Schedule Of Future Estimated Amortization Expense) (Details) (USD $) In Thousands, unless otherwise specified | May 31, 2013 | Aug. 31, 2012
--- | --- | ---
Finite-Lived Intangible Assets [Line Items] |  |
Net carrying amount | $ 26,113 | $ 27,685
Trade Names [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Remainder of fiscal year 2013 | 642 |
Fiscal year 2014 | 2,564 |
Fiscal year 2015 | 2,564 |
Fiscal year 2016 | 2,564 |
Fiscal year 2017 | 2,564 |
Thereafter | 15,215 |
Net carrying amount | $ 26,113 |

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- Definition Amount of amortization expense expected to be recognized during the next fiscal year following the latest fiscal year for assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275 + Details
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- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 45 -Subparagraph a(1) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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