| Standard label: | Artistic-Related Intangible Assets [Member] |
| Name: | us-gaap:ArtisticRelatedIntangibleAssetsMember |
| Documentation: | Artistic-related assets that arise from contractual or legal rights such as those provided by copyright. Include, but are not limited to, plays, operas, ballets, books, magazines, newspapers, other literary works, musical works such as compositions, song lyrics, advertising jingles, pictures, photographs, video and audiovisual material including motion pictures or films, music videos, and television programs. |
| 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:ArtisticRelatedIntangibleAssetsMember |
| Label | Role | Language |
| Artistic-Related Intangible Assets [Member] | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 805 20 55 29 | http://www.xbrl.org/2003/role/exampleRef | 805 |
| FASB Accounting Standards Codification 928 340 50 1 | http://www.xbrl.org/2003/role/disclosureRef | 928 |