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Financial Derivatives (Narrative) (Details) | 12 Months Ended |  | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Aug. 31, 2012 USD ($) | Aug. 31, 2011 USD ($) | Aug. 31, 2010 USD ($) | Aug. 31, 2012 Cash Flow Hedging [Member] | Aug. 31, 2012 Net Investment Hedging [Member] USD ($) | Aug. 31, 2011 Net Investment Hedging [Member] USD ($) | Aug. 31, 2010 Net Investment Hedging [Member] USD ($) | Aug. 31, 2012 Net Investment Hedging [Member] EUR (€) | Aug. 31, 2011 Net Investment Hedging [Member] EUR (€) | Aug. 31, 2012 Forward Exchange And Options Contracts [Member] Cash Flow Hedging [Member] USD ($) | Aug. 31, 2011 Forward Exchange And Options Contracts [Member] Cash Flow Hedging [Member] USD ($)
Derivatives, Fair Value [Line Items] |  |  |  |  |  |  |  |  |  |  |
Realized and unrealized gains, net of related income tax effects | $ 2,400,000 | $ 500,000 |  |  |  |  |  |  |  |  |
Fixed rate, per annum |  |  |  | 6.05% |  |  |  |  |  |  |
Cash flow forward exchange contracts and option contracts outstanding |  |  |  |  |  |  |  |  |  | 3,000,000 | 0
Foreign currency translation, net of hedging activities | (7,131,000) | 4,719,000 | (2,791,000) |  | 1,800,000 | 700,000 | 300,000 |  |  |  |
Accumulated currency translation adjustments in AOCI, after-tax gains | 1,723,000 | 8,854,000 |  |  | 2,400,000 | 700,000 | 1,500,000 |  |  |  |
Outstanding foreign currency forward contracts to sell |  |  |  |  |  |  |  | € 26,500,000 | € 10,000,000 |  |

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- Definition Accumulated adjustment, net of tax, that results from the process of translating subsidiary financial statements and foreign equity investments into the reporting currency from the functional currency of the reporting entity, net of reclassification of realized foreign currency translation gains or losses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 52 -Paragraph 12, 13 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 Statement of Financial Accounting Standard (FAS) -Number 130 -Paragraph 17, 18, 19, 22, 23, 24, 25, 26 -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 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=20435746&loc=d3e637-108580 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 12 -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 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=20435746&loc=SL7669646-108580 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 52 -Paragraph 31 -Subparagraph a -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 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=20435746&loc=d3e681-108580 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 133 -Paragraph 45 -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 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6915805&loc=d3e32022-110900 Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=20435746&loc=SL7669686-108580 Reference 11: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6450520&loc=d3e32583-110901 + Details
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