| Standard label: | Unique Name [Axis] | 
| Name: | us-gaap:NoncashOrPartNoncashDivestituresByUniqueNameAxis | 
| Documentation: | Information by unique name of asset or business. | 
| Object type: | cm:Axis | 
| Data type: | Text/String (xbrli:stringItemType) | 
| Period type: | For Period (duration) | 
| Balance type: | (no balance type) | 
| Abstract: | true | 
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:NoncashOrPartNoncashDivestituresByUniqueNameAxis | 
| Label | Role | Language | 
| Unique Name [Axis] | http://www.xbrl.org/2003/role/label | en-US | 
| Reference | Role | Topic | 
| FASB Accounting Standards Codification 230 10 50 3 | http://fasb.org/us-gaap/role/ref/legacyRef | 230 | 
| FASB Accounting Standards Codification 230 10 50 4 | http://fasb.org/us-gaap/role/ref/legacyRef | 230 | 
| FASB Accounting Standards Codification 230 10 50 5 | http://fasb.org/us-gaap/role/ref/legacyRef | 230 |