| Standard label: | Disposal Group, Held-for-sale, Not Discontinued Operations [Member] |
| Name: | us-gaap:DisposalGroupHeldforsaleNotDiscontinuedOperationsMember |
| Documentation: | Disposal group that is classified as held-for-sale. Excludes disposals classified as discontinued operations. |
| 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:DisposalGroupHeldforsaleNotDiscontinuedOperationsMember |
| Label | Role | Language |
| Disposal Group, Held-for-sale, Not Discontinued Operations [Member] | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 205 20 50 5C (a)(2) | http://www.xbrl.org/2003/role/disclosureRef | 205 |
| FASB Accounting Standards Codification 360 10 50 3 | http://fasb.org/us-gaap/role/ref/legacyRef | 360 |
| FASB Accounting Standards Codification 360 10 45 14 | http://fasb.org/us-gaap/role/ref/legacyRef | 360 |