| Standard label: | Fair Value, Option, Interest and Dividends, Measurement |
| Name: | us-gaap:FairValueOptionInterestAndDividendsMeasurement |
| Documentation: | This item represents a description of how interest and dividends are measured and where they are reported in the income statement. |
| 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:FairValueOptionInterestAndDividendsMeasurement |
| Label | Role | Language |
| Fair Value, Option, Interest and Dividends, Measurement | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 825 10 50 30 (b) | http://fasb.org/us-gaap/role/ref/legacyRef | 825 |