| Standard label: | Unusual or Infrequent Item, or Both, Loss, Gross |
| Name: | us-gaap:UnusualOrInfrequentItemLossGross |
| Documentation: | Amount, before deduction of insurance proceeds, of loss recognized in the income statement for an event or transaction that is unusual in nature or infrequent in occurrence, or both. |
| 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:UnusualOrInfrequentItemLossGross |
| Label | Role | Language |
| Unusual or Infrequent Item, or Both, Loss, Gross | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 220 20 50 1 | http://fasb.org/us-gaap/role/ref/legacyRef | 220 |
| Part Of Roll Up: |
| us-gaap:UnusualOrInfrequentItemNetOfInsuranceProceeds |