Debt instrument, amount available to be paid and re-advanced

No definition available.

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Period Type:	instant

- Definition

Line Of Credit Facility, Number Of Programs

+ References

No definition available.

+ Details

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Period Type:	instant

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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Period Type:	duration

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt 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(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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Period Type:	duration

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions 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 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.16)
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 19, 20, 22
-Article 5

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

+ 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),22(b))
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Period Type:	instant

- 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
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-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 20, 22
-Article 5

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Carrying amount at the balance sheet date of borrowings from a bank, not elsewhere enumerated in the taxonomy, with a maturity within one year (or within one operating cycle if longer) from the date of borrowing.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
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Period Type:	instant

- Definition

Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
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-Number 210
-Section 03
-Paragraph 13
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-Article 9

+ Details

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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

Name:	us-gaap_DebtInstrumentAxis=chscp_PrivatePlacementpayableinitsentiretyJanuary2036Member
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- Details

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- Details

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Notes Payable and Long-Term Debt - Footnote Narrative (Details)		1 Months Ended	9 Months Ended
	Jun. 30, 2016 USD ($)	Sep. 30, 2015 USD ($)	May 31, 2016 USD ($) bank	Jan. 31, 2016 USD ($)	Aug. 31, 2015 USD ($)
Debt Instrument [Line Items]
Notes payable			$ 3,336,852,000		$ 1,165,378,000
CHS Capital notes payable
Debt Instrument [Line Items]
Notes payable			645,219,000		351,661,000
Notes payable
Debt Instrument [Line Items]
Notes payable			2,691,633,000		813,717,000
Five-Year Revolving Facilities [Member] \| Line of Credit [Member] \| Revolving credit facility
Debt Instrument [Line Items]
Line of Credit Facility, Current Borrowing Capacity			3,000,000,000
Long-term Line of Credit			$ 950,000,000		$ 0
Debt Instrument, Term			5 years
Committed Term Loans, September 2015 [Member] \| Secured Debt [Member]
Debt Instrument [Line Items]
Debt Instrument, Term		10 years
Debt Instrument, Face Amount		$ 600,000,000
Long-term Debt			$ 600,000,000.0
Private Placement Long Term Notes January 2016 [Member] \| Unsecured Debt [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount				$ 680,000,000
Private Placement, payable in its entirety 2023 [Member] \| Unsecured Debt [Member]
Debt Instrument [Line Items]
Long-term Debt				$ 152,000,000.0
Debt Instrument, Interest Rate, Stated Percentage				4.39%
Private Placement, payable in its entirety January 2025 [Member] \| Unsecured Debt [Member]
Debt Instrument [Line Items]
Long-term Debt				$ 150,000,000.0
Debt Instrument, Interest Rate, Stated Percentage				4.58%
Private Placement, payable in its entirety January 2027 [Member] \| Unsecured Debt [Member]
Debt Instrument [Line Items]
Long-term Debt				$ 58,000,000.0
Debt Instrument, Interest Rate, Stated Percentage				4.69%
Private Placement, payable in its entirety January 2028 [Member] \| Unsecured Debt [Member]
Debt Instrument [Line Items]
Long-term Debt				$ 95,000,000.0
Debt Instrument, Interest Rate, Stated Percentage				4.74%
Private Placement, payable in its entirety January 2031 [Member] \| Unsecured Debt [Member]
Debt Instrument [Line Items]
Long-term Debt				$ 100,000,000.0
Debt Instrument, Interest Rate, Stated Percentage				4.89%
Private Placement, payable in its entirety January 2036 [Member] \| Unsecured Debt [Member]
Debt Instrument [Line Items]
Long-term Debt				$ 125,000,000.0
Debt Instrument, Interest Rate, Stated Percentage				5.40%
Bilateral, Uncommitted Revolving Facilities [Member] \| Line of Credit [Member] \| Revolving credit facility
Debt Instrument [Line Items]
Line of Credit Facility, Current Borrowing Capacity			$ 1,300,000,000
Line Of Credit Facility, Number Of Programs \| bank			3
Short-term Debt			$ 858,500,000
Subsequent Event [Member] \| Committed Term Loans, September 2015 [Member] \| Secured Debt [Member]
Debt Instrument [Line Items]
Debt Instrument, Term	10 years
Debt instrument, amount available to be paid and re-advanced	$ 300,000,000
Debt Instrument, Face Amount	$ 600,000,000
Minimum [Member] \| Bilateral, Uncommitted Revolving Facilities [Member] \| Line of Credit [Member] \| Revolving credit facility
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate			0.25%
Minimum [Member] \| London Interbank Offered Rate (LIBOR) [Member] \| Committed Term Loans, September 2015 [Member] \| Secured Debt [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate		1.50%
Minimum [Member] \| Base Rate [Member] \| Committed Term Loans, September 2015 [Member] \| Secured Debt [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate		0.50%
Maximum [Member] \| Bilateral, Uncommitted Revolving Facilities [Member] \| Line of Credit [Member] \| Revolving credit facility
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate			1.00%
Maximum [Member] \| London Interbank Offered Rate (LIBOR) [Member] \| Committed Term Loans, September 2015 [Member] \| Secured Debt [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate		2.00%
Maximum [Member] \| Base Rate [Member] \| Committed Term Loans, September 2015 [Member] \| Secured Debt [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate		1.00%