| Standard label: | Other Income Disclosure, Nonoperating |
| Name: | us-gaap:OtherIncomeDisclosureNonoperating |
| Documentation: | Disclosure of nonoperating income amounts earned from dividends, interest on securities, profits (losses) on securities and net and miscellaneous other income items. |
| 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:OtherIncomeDisclosureNonoperating |
| Label | Role | Language |
| Other Income Disclosure, Nonoperating | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 220 10 S99 2 (SX 210.5-03.7) | http://fasb.org/us-gaap/role/ref/legacyRef | 220 |