| Standard label: | Qualitative and Quantitative Information, Transferor's Continuing Involvement, Not Previously Required Financial Support Provided, Type and Primary Reasons |
| Name: | us-gaap:NotPreviouslyRequiredFinancialSupportProvidedTypeAndPrimaryReasons |
| Documentation: | The type of support provided that was not previously contractually required to be provided to the transferee or its beneficial interest holders and the reason that the support was provided. |
| Object type: | cm:Concept |
| Data type: | Text/String (xbrli:stringItemType) |
| Period type: | For Period (duration) |
| Balance type: | (no balance type) |
| Abstract: | false |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:NotPreviouslyRequiredFinancialSupportProvidedTypeAndPrimaryReasons |
| Label | Role | Language |
| Qualitative and Quantitative Information, Transferor's Continuing Involvement, Not Previously Required Financial Support Provided, Type and Primary Reasons | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 860 20 50 4 (a)(5)(i) | http://www.xbrl.org/2003/role/disclosureRef | 860 |
| FASB Accounting Standards Codification 860 20 50 4 (a)(5)(ii) | http://www.xbrl.org/2003/role/disclosureRef | 860 |