| Standard label: | Variable Interest Entity, Measure of Activity, Operating Income or Loss |
| Name: | us-gaap:VariableInterestEntityActivityBetweenVIEAndEntityOperatingIncomeOrLoss |
| Documentation: | The amount of income (loss) from operations derived by the reporting entity during the period from the Variable Interest Entity (VIE). |
| Object type: | cm:Concept |
| Data type: | Monetary (xbrli:monetaryItemType) |
| Period type: | For Period (duration) |
| Balance type: | Credit |
| Abstract: | false |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:VariableInterestEntityActivityBetweenVIEAndEntityOperatingIncomeOrLoss |
| Label | Role | Language |
| Variable Interest Entity, Measure of Activity, Operating Income or Loss | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 810 10 50 6 d | http://fasb.org/us-gaap/role/ref/legacyRef | 810 |