| Standard label: | Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Nonquantifiable, Narrative |
| Name: | us-gaap:MaximumExposureToLossCannotBeQuantified |
| Documentation: | Description of the fact that the reporting entity's maximum exposure to loss as a result of its involvement with the Variable Interest Entity (VIE) cannot be quantified. |
| 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:MaximumExposureToLossCannotBeQuantified |
| Label | Role | Language |
| Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Nonquantifiable, Narrative | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 810 10 50 4 b | http://fasb.org/us-gaap/role/ref/legacyRef | 810 |