| Standard label: | Disputes [Member] |
| Name: | us-gaap:DisputesMember |
| Documentation: | Revision in estimates for financial differences between a party and counterparty pertaining to interpretations of terms or understandings of contractual and noncontractual arrangements, whether written or oral. |
| Object type: | cm:Member |
| Data type: | [Member] (nonnum:domainItemType) |
| Period type: | For Period (duration) |
| Balance type: | (no balance type) |
| Abstract: | true |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:DisputesMember |
| Label | Role | Language |
| Disputes [Member] | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |