| Standard label: | Operating Income (Loss) |
| Name: | us-gaap:OperatingIncomeLoss |
| Documentation: | The net result for the period of deducting operating expenses from operating revenues. |
| 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:OperatingIncomeLoss |
| Label | Role | Language |
| Operating Income (Loss) | http://www.xbrl.org/2003/role/label | en-US |
| Operating Income (Loss), Total | http://www.xbrl.org/2003/role/totalLabel | en-US |
| Reference | Role | Topic |
| Part Of Roll Up: |
| us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments |