| Standard label: | Sublease Income |
| Name: | us-gaap:SubleaseIncome |
| Documentation: | Amount of sublease income excluding finance and operating lease expense. |
| Object type: | cm:Concept |
| Data type: | Monetary (xbrli:monetaryItemType) |
| Period type: | For Period (duration) |
| Balance type: | Credit |
| Abstract: | false |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:SubleaseIncome |
| Label | Role | Language |
| Sublease Income | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 842 20 50 4 (e) | http://www.xbrl.org/2003/role/disclosureRef | 842 |
| FASB Accounting Standards Codification 842 20 55 53 | http://www.xbrl.org/2003/role/exampleRef | 842 |
| Part Of Roll Up: |
| us-gaap:Revenues |