| Standard label: | Qualitative and Quantitative Information, Transferor's Continuing Involvement, Arrangements of Financial Support, Amount | 
| Name: | us-gaap:QualitativeAndQuantitativeInformationTransferorsContinuingInvolvementArrangementsOfFinancialSupportAmount | 
| Documentation: | The transferor's maximum amount of exposure to loss as a result of its continuing involvement in transferred financial assets. | 
| 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:QualitativeAndQuantitativeInformationTransferorsContinuingInvolvementArrangementsOfFinancialSupportAmount | 
| Label | Role | Language | 
| Qualitative and Quantitative Information, Transferor's Continuing Involvement, Arrangements of Financial Support, Amount | http://www.xbrl.org/2003/role/label | en-US | 
| Reference | Role | Topic | 
| FASB Accounting Standards Codification 860 20 50 4 (a)(4)(ii) | http://www.xbrl.org/2003/role/disclosureRef | 860 |