| Standard label: | Discontinued Operation, Intra-Entity Amounts, Discontinued Operation after Disposal, Expense |
| Name: | us-gaap:DiscontinuedOperationIntraEntityAmountsDiscontinuedOperationAfterDisposalExpense |
| Documentation: | Amount of expense in continuing operations related to continuing involvement in a discontinued operation after the disposal that before the disposal was eliminated as intra-entity transactions. |
| 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:DiscontinuedOperationIntraEntityAmountsDiscontinuedOperationAfterDisposalExpense |
| Label | Role | Language |
| Discontinued Operation, Intra-Entity Amounts, Discontinued Operation after Disposal, Expense | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 205 20 50 4B (c)(2) | http://fasb.org/us-gaap/role/ref/legacyRef | 205 |