| Standard label: | Prepaid Advertising | 
| Name: | us-gaap:PrepaidAdvertising | 
| Documentation: | Amount of consideration paid in advance for advertising that provides economic benefits within a future period of one year or the normal operating cycle, if longer. | 
| Object type: | cm:Concept | 
| Data type: | Monetary (xbrli:monetaryItemType) | 
| Period type: | As Of (instant) | 
| Balance type: | Debit | 
| Abstract: | false | 
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:PrepaidAdvertising | 
| Label | Role | Language | 
| Prepaid Advertising | http://www.xbrl.org/2003/role/label | en-US | 
| Reference | Role | Topic | 
| FASB Accounting Standards Codification 210 10 45 1 (g)(6) | http://www.xbrl.org/2003/role/exampleRef | 210 | 
| Part Of Roll Up: | 
| us-gaap:PrepaidExpenseCurrent |