| Standard label: | Loss Contingency, Receivable, Additions |
| Name: | us-gaap:LossContingencyRelatedReceivableCarryingValueAdditions |
| Documentation: | Amount of additions to receivables pertaining to a loss contingency. |
| 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:LossContingencyRelatedReceivableCarryingValueAdditions |
| Label | Role | Language |
| Loss Contingency, Receivable, Additions | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 460 10 50 3 | http://fasb.org/us-gaap/role/ref/legacyRef | 460 |
| Part Of Roll Up: |
| us-gaap:LossContingencyRelatedReceivableCarryingValuePeriodIncreaseDecrease |