| Standard label: | Operating Lease, Expense |
| Name: | us-gaap:OperatingLeaseExpense |
| Documentation: | Amount of operating lease expense. Excludes sublease income. |
| Object type: | cm:Concept |
| Data type: | Monetary (xbrli:monetaryItemType) |
| Period type: | For Period (duration) |
| Balance type: | Debit |
| Abstract: | false |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:OperatingLeaseExpense |
| Label | Role | Language |
| Operating Lease, Expense | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 842 20 45 4 (b) | http://www.xbrl.org/2009/role/commonPracticeRef | 842 |
| Part Of Roll Up: |
| us-gaap:GeneralAndAdministrativeExpense |