| Standard label: | Derivative, Loss on Derivative |
| Name: | us-gaap:DerivativeLossOnDerivative |
| Documentation: | Amount of decrease in the fair value of derivatives recognized in the income statement. |
| Object type: | cm:Concept |
| Data type: | Monetary (xbrli:monetaryItemType) |
| Period type: | For Period (duration) |
| Balance type: | Debit |
| Abstract: | false |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:DerivativeLossOnDerivative |
| Label | Role | Language |
| Derivative, Loss on Derivative | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 815 10 50 4A (b)(1) | http://www.xbrl.org/2003/role/disclosureRef | 815 |
| Part Of Roll Up: |
| us-gaap:DerivativeGainLossOnDerivativeNet |