XML 37 R86.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Commitments and Contingencies - Environmental (Details) (Laurel, Montana and McPherson, Kansas Refineries [Member], USD $) In Millions, unless otherwise specified | 12 Months Ended | 48 Months Ended
--- | --- | ---
Aug. 31, 2011 | Aug. 31, 2010 | Aug. 31, 2012
Laurel, Montana and McPherson, Kansas Refineries [Member] |  |  |
Site Contingency [Line Items] |  |  |
Payments for Environmental Liabilities |  |  | $ 95.0
Environmental Remediation Expense | $ 19.0 | $ 43.0 |

X
- Definition Cummulative Payments for Environmental Liabilities + References No definition available. + Details
Name: | chscp_CummulativePaymentsForEnvironmentalLiabilities
Namespace Prefix: | chscp_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Cash outflows made during the period for environmental remediation activities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 17 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3367-108585 + Details
Name: | us-gaap_PaymentsForEnvironmentalLiabilities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_SiteContingencyLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration