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Notes Payable and Long-Term Debt - Schedule of Weighted Average Interest Rates (Details) | Aug. 31, 2012 | Aug. 31, 2011
--- | --- | ---
Debt Instrument [Line Items] |  |
Long-term debt, weighted average interest rate |  | 5.25%
Notes payable, other payables |  |
Debt Instrument [Line Items] |  |
Notes payable, weighted average interest rate | 2.58% | 2.37%
CHS Capital notes payable |  |
Debt Instrument [Line Items] |  |
Notes payable, weighted average interest rate | 1.68% | 1.86%

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- Definition Reflects the calculation as of the balance sheet date of the average interest rate weighted by the amount of long-term debt outstanding by type or by instrument at that time. + References No definition available. + Details
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- Definition Reflects the calculation as of the balance sheet date of the average interest rate weighted by the amount of short-term debt outstanding by type or by instrument at that time. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19 -Subparagraph b -Article 5 + Details
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