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Notes Payable and Long-Term Debt - Footnote Narrative (Details) | 12 Months Ended | 37 Months Ended |
--- | --- | --- | ---
Aug. 31, 2015 USD ($) bank program | Aug. 31, 2014 USD ($) | Sep. 30, 2015 USD ($) occurrence | Nov. 23, 2015 USD ($)
Debt Instrument [Line Items] |  |  |  |  |
Long-term Debt, Fair Value |  | $ 1,300,000,000 |  |  |
Notes payable |  | 1,165,378,000 | $ 1,159,473,000 |  |
Increase (Decrease) in Fair Value of Hedged Item in Interest Rate Fair Value Hedge |  | 8,000,000 | 4,200,000 |  |
Long-term Debt |  | 1,293,360,000 |  |  |
Five-year revolving facilities | Line of credit | Revolving credit facility |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Line of Credit Facility, Current Borrowing Capacity |  | 2,500,000,000 |  |  |
Line of credit facility, amount outstanding |  | 0 |  |  |
Three-Year Revolving Facility [Member] | Line of credit | Revolving credit facility |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Line of Credit Facility, Current Borrowing Capacity |  | 250,000,000 |  |  |
Line of Credit Facility, Fair Value of Amount Outstanding |  | 200,000,000 |  |  |
Uncommitted lines of credit | Line of credit | Revolving credit facility |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Long-term Line of Credit, Noncurrent |  | 303,400,000 |  |  |
Other international subsidiaries, lines of credit | Line of credit | Revolving credit facility |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Line of credit facility, amount outstanding |  | 310,200,000 |  |  |
Line Of Credit, Collateralized Amount |  | 216,700,000 |  |  |
Credit facilities, commercial paper programs | Line of credit | Revolving credit facility |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Line of Credit Facility, Current Borrowing Capacity |  | 125,000,000 |  |  |
Long-term Line of Credit, Noncurrent |  | $ 0 |  |  |
Line Of Credit Facility, Number Of Programs | program |  | 2 |  |  |
Line Of Credit Facility, Number Of Participating Banks | bank |  | 2 |  |  |
Line of credit facility maximum usage allowed to pay principal |  | $ 100,000,000 |  |  |
Miscellaneous short-term notes payable | Line of credit | Revolving credit facility |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Line of credit facility, amount outstanding |  | $ 100,000 |  |  |
Revolving term loans from cooperative and other banks | Line of credit | Revolving credit facility |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Interest rate |  | 5.59% |  |  |
Long-term Debt |  | $ 75,000,000 | 105,000,000 |  |
Private placement, payable in equal installments beginning in 2014 through 2018 | Unsecured debt |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Interest rate |  | 6.18% |  |  |
Debt Instrument, Face Amount |  | $ 400,000,000 |  |  |
Long-term Debt |  | $ 240,000,000 | 320,000,000 |  |
Private placement, payable in installments through 2018 | Unsecured debt |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Interest rate |  | 5.60% |  |  |
Debt Instrument, Face Amount |  | $ 60,000,000 |  |  |
Long-term Debt |  | $ 23,077,000 | 32,308,000 |  |
Private placement, payable in equal installments beginning in 2011 through 2015 | Unsecured debt |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Interest rate |  | 5.25% |  |  |
Debt Instrument, Face Amount |  | $ 125,000,000 |  |  |
Long-term Debt |  | $ 0 | 25,000,000 |  |
Private placement, note purchase and private shelf agreement with Prudential Capital Group, payable in equal installments beginning in 2014 through 2018 | Notes Payable, Other Payables [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Interest rate |  | 5.78% |  |  |
Debt Instrument, Face Amount |  | $ 50,000,000 |  |  |
Long-term Debt |  | $ 30,000,000 | 40,000,000 |  |
Private placement, note purchase and private shelf agreement with Prudential Capital Group, payable in equal installments beginning in 2017 through 2021 | Notes Payable, Other Payables [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Interest rate |  | 4.00% |  |  |
Debt Instrument, Face Amount |  | $ 100,000,000 |  |  |
Long-term Debt |  | 100,000,000 | 100,000,000 |  |
Other notes and contracts | Secured debt |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Long-term debt, gross |  | 500,000 |  |  |
Long-term Debt | [1] | $ 44,909,000 | $ 43,751,000 |  |
CHS Capital notes payable |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Notes payable, weighted average interest rate | [2] | 1.05% | 1.07% |  |
Short-term notes payable, note purchase agreements | Notes Payable, Other Payables [Member] | Cofina Funding, LLC |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Line of credit facility, amount outstanding |  | $ 0 |  |  |
Short-term bank loans and notes payable current borrowing capacity |  | $ 350,000,000 |  |  |
Notes Payable, Other Payables [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Notes payable, weighted average interest rate | [3] | 2.33% | 1.69% |  |
Notes Payable, Other Payables [Member] | Cofina Funding, LLC |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Notes payable, weighted average interest rate | [3] | 1.04% |  |  |
Notes Payable, Other Payables [Member] | Notes Payable, Other Payables [Member] | Revolving credit facility |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Notes payable | [3] | $ 813,717,000 | $ 840,699,000 |  |
Master participation agreements | Notes Payable, Other Payables [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Short-term bank loans and notes payable current borrowing capacity |  | 145,700,000 |  |  |
Notes payable |  | $ 35,900,000 |  |  |
Master participation agreements | Notes Payable, Other Payables [Member] | Minimum |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Interest rate |  | 1.64% |  |  |
Master participation agreements | Notes Payable, Other Payables [Member] | Maximum |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Interest rate |  | 3.70% |  |  |
Recourse loan commitments | Notes Payable, Other Payables [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Short-term bank loans and notes payable current borrowing capacity |  | $ 56,800,000 |  |  |
Short-term debt, maximum borrowing capacity |  | 300,000,000 |  |  |
Notes payable |  | $ 39,900,000 |  |  |
Interest rate |  | 1.62% |  |  |
Short-Term Notes Payable, Surplus Funds Program [Member] | Notes Payable, Other Payables [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Notes payable |  | $ 275,800,000 |  |  |
Short-Term Notes Payable, Surplus Funds Program [Member] | Notes Payable, Other Payables [Member] | Minimum |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Interest rate |  | 0.10% |  |  |
Short-Term Notes Payable, Surplus Funds Program [Member] | Notes Payable, Other Payables [Member] | Maximum |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Interest rate |  | 0.90% |  |  |
Subsequent Event [Member] | Five-year revolving facilities | Line of credit | Revolving credit facility |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Line of Credit Facility, Current Borrowing Capacity |  |  |  | $ 3,000,000,000 |
Subsequent Event [Member] | Committed Term Loans, September 2015 [Member] | Secured debt |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Debt Instrument, Term |  |  |  | 10 years |
Debt Instrument, Face Amount |  |  |  | $ 600,000,000.0 |
Debt Instrument, Withdrawal Occurrences During One Year Period | occurrence |  |  |  | 10 |
Long-term Debt |  |  |  |  | $ 0
Subsequent Event [Member] | Committed Term Loans, September 2015 [Member] | Secured debt | London Interbank Offered Rate (LIBOR) [Member] | Minimum |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  |  | 1.50% |
Subsequent Event [Member] | Committed Term Loans, September 2015 [Member] | Secured debt | London Interbank Offered Rate (LIBOR) [Member] | Maximum |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  |  | 2.00% |
Subsequent Event [Member] | Committed Term Loans, September 2015 [Member] | Secured debt | Base Rate [Member] | Minimum |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  |  | 0.50% |
Subsequent Event [Member] | Committed Term Loans, September 2015 [Member] | Secured debt | Base Rate [Member] | Maximum |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  |  | 1.00% |
[1] | Other notes and contracts payable of $0.5 million were collateralized on August 31, 2015.
[2] | Cofina Funding, LLC ("Cofina Funding"), a wholly-owned subsidiary of CHS Capital, has available credit totaling $350.0 million as of August 31, 2015, under note purchase agreements with various purchasers, through the issuance of short-term notes payable. CHS Capital sells eligible commercial loans receivable it has originated to Cofina Funding, which are then pledged as collateral under the note purchase agreements. The notes payable issued by Cofina Funding bear interest at variable rates based on commercial paper with a weighted average rate of 1.04% as of August 31, 2015. There were no borrowings by Cofina Funding utilizing the issuance of commercial paper under the note purchase agreements as of August 31, 2015. CHS Capital has available credit under master participation agreements with numerous counterparties. Borrowings under these agreements are accounted for as secured borrowings and bear interest at variable rates ranging from 1.64% to 3.70% as of August 31, 2015. As of August 31, 2015, the total funding commitment under these agreements was $145.7 million, of which $35.9 million was borrowed. CHS Capital sells loan commitments it has originated to ProPartners Financial ("ProPartners") on a recourse basis. The total capacity for commitments under the ProPartners program is $300.0 million. The total outstanding commitments under the program totaled $56.8 million as of August 31, 2015, of which $39.9 million was borrowed under these commitments with an interest rate of 1.62%. CHS Capital borrows funds under short-term notes issued as part of a surplus funds program. Borrowings under this program are unsecured and bear interest at variable rates ranging from 0.10% to 0.90% as of August 31, 2015, and are due upon demand. Borrowings under these notes totaled $275.8 million as of August 31, 2015.
[3] | On August 31, 2015, our primary committed line of credit was a $2.5 billion five-year, unsecured revolving credit facility with a syndication of domestic and international banks, with no amounts outstanding as of that date. In September 2015 this facility was amended and restated as a five-year, unsecured revolving credit facility with a committed amount of $3.0 billion that expires in September 2020. In addition to our primary revolving line of credit, we have a three-year $250.0 million committed revolving pre-export credit facility for CHS Agronegocio Industria e Comercio Ltda ("CHS Agronegocio"), our wholly-owned subsidiary, to provide financing for its working capital needs arising from its purchases and sales of grains, fertilizers and other agricultural products which expires in October 2016. The outstanding balance on this facility was $200.0 million as of August 31, 2015.As of August 31, 2015, our wholly-owned subsidiaries, CHS Europe S.a.r.l and CHS Agronegocio, had uncommitted lines of credit with $303.4 million outstanding. In addition, our other international subsidiaries had lines of credit with a total of $310.2 million outstanding as of August 31, 2015, of which $216.7 million was collateralized. We have two commercial paper programs with an aggregate capacity of $125.0 million, with two banks participating in our revolving credit facilities. Terms of our credit facilities allow a maximum usage of $100.0 million to pay principal under any commercial paper facility. On August 31, 2015 we had no commercial paper outstanding. Miscellaneous short-term notes payable totaled $0.1 million as of August 31, 2015.

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- Definition Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20, 22 -Article 5 + Details
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- Definition The carrying value as of the balance sheet date of the noncurrent portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + 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 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 45 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=28361426&loc=d3e1314-112600 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=28361426&loc=d3e1336-112600 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Line-of-Credit Arrangement -URI http://asc.fasb.org/extlink&oid=6517033 + Details
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