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Financial Derivatives (Schedule Of Financial Derivatives)(Details) (USD $) In Thousands, unless otherwise specified | Aug. 31, 2012 | Aug. 31, 2011
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Derivatives Designated As Hedging Instruments [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Derivative instruments as hedging | $ (526) | $ (634)
Derivatives Designated As Hedging Instruments [Member] | Other Current Liabilities [Member] | Foreign Currency Forward Contracts [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Derivative instruments as hedging | (436) | (218)
Derivatives Designated As Hedging Instruments [Member] | Other Current Liabilities [Member] | Interest Rate Swap [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Derivative instruments as hedging | (90) | (267)
Derivatives Designated As Hedging Instruments [Member] | Other Noncurrent Liabilities [Member] | Interest Rate Swap [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Derivative instruments as hedging |  | (149)
Derivatives Not Designated As Hedging Instruments [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Derivative instruments as hedging | (25) |
Derivatives Not Designated As Hedging Instruments [Member] | Other Current Liabilities [Member] | Foreign Currency Forward Contracts [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Derivative instruments as hedging | (37) |
Derivatives Not Designated As Hedging Instruments [Member] | Other Current Assets [Member] | Foreign Currency Forward Contracts [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Derivative instruments as hedging | $ 12 |

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- Definition Fair values as of the balance sheet date of the net amount of all assets and liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 107 -Paragraph 10 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 133 -Paragraph 4, 17 -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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