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Commitments and Contingencies Guarantees (Details) $ in Millions | Feb. 28, 2017 USD ($)
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Commitments and Contingencies Disclosure [Abstract] |
Guarantor obligations, maximum exposure, undiscounted | $ 110.4
Maximum guarantees allowed by bank covenants | $ 1,000.0

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- Definition Maximum Guarantees Allowed by Bank Covenants + References No definition available. + Details
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Namespace Prefix: | chscp_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
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- Definition Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=6851643&loc=d3e12069-110248 + Details
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