| Standard label: | Other Expense Disclosure, Nonoperating | 
| Name: | us-gaap:OtherExpenseDisclosureNonoperating | 
| Documentation: | Discloses those nonoperating expense items that could include (a) losses on securities (net of profits) and (b) miscellaneous income deductions. | 
| 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:OtherExpenseDisclosureNonoperating | 
| Label | Role | Language | 
| Other Expense Disclosure, Nonoperating | http://www.xbrl.org/2003/role/label | en-US | 
| Reference | Role | Topic | 
| FASB Accounting Standards Codification 220 10 S99 2 (SX 210.5-03.9) | http://fasb.org/us-gaap/role/ref/legacyRef | 220 |