| Standard label: | Qualitative and Quantitative Information, Transferor's Continuing Involvement, Not Previously Required Financial Support Provided, Amount |
| Name: | us-gaap:NotPreviouslyRequiredFinancialSupportProvidedAmount |
| Documentation: | The amount of the support provided by the transferor with a continuing involvement that was not previously contractually required to provide to the transferee or its beneficial interest holders. |
| Object type: | cm:Concept |
| Data type: | Monetary (xbrli:monetaryItemType) |
| Period type: | As Of (instant) |
| Balance type: | Credit |
| Abstract: | false |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:NotPreviouslyRequiredFinancialSupportProvidedAmount |
| Label | Role | Language |
| Qualitative and Quantitative Information, Transferor's Continuing Involvement, Not Previously Required Financial Support Provided, Amount | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 860 20 50 4 (a)(5)(i) | http://fasb.org/us-gaap/role/ref/legacyRef | 860 |