| Standard label: | Related Party [Axis] |
| Name: | us-gaap:RelatedPartyTransactionsByRelatedPartyAxis |
| Documentation: | Information by type of related party. Related parties include, but not limited to, affiliates; other entities for which investments are accounted for by the equity method by the entity; trusts for benefit of employees; and principal owners, management, and members of immediate families. It also may include other parties with which the entity may control or can significantly influence the management or operating policies of the other to an extent that one of the transacting parties might be prevented from fully pursuing its own separate interests. |
| 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:RelatedPartyTransactionsByRelatedPartyAxis |
| Label | Role | Language |
| Related Party [Axis] | http://www.xbrl.org/2003/role/label | en-US |