| Standard label: | Derivative, Gain (Loss) on Derivative, Net |
| Name: | us-gaap:DerivativeGainLossOnDerivativeNet |
| Documentation: | Amount of increase (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: | Credit |
| Abstract: | false |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:DerivativeGainLossOnDerivativeNet |
| Label | Role | Language |
| Derivative, Gain (Loss) on Derivative, Net | http://www.xbrl.org/2003/role/label | en-US |
| Derivative, Gain (Loss) on Derivative, Net, Total | http://www.xbrl.org/2003/role/totalLabel | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 815 10 50 4A (b)(1) | http://www.xbrl.org/2009/role/commonPracticeRef | 815 |