| Standard label: | Noncontrolling Interest, Decrease from Deconsolidation |
| Name: | us-gaap:NoncontrollingInterestDecreaseFromDeconsolidation |
| Documentation: | The amount of the reduction or elimination during the period of a noncontrolling interest resulting from the parent's loss of control and deconsolidation of the entity in which one or more outside parties had a noncontrolling interest. |
| 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:NoncontrollingInterestDecreaseFromDeconsolidation |
| Label | Role | Language |
| Noncontrolling Interest, Decrease from Deconsolidation | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 505 10 S99 1 | http://fasb.org/us-gaap/role/ref/legacyRef | 505 |
| FASB Accounting Standards Codification 810 10 50 1A (c)(2) | http://fasb.org/us-gaap/role/ref/legacyRef | 810 |
| Part Of Roll Up: |
| us-gaap:MinorityInterestPeriodIncreaseDecrease |