| Standard label: | Operating Leases, Rent Expense, Net |
| Name: | us-gaap:OperatingLeasesRentExpenseNet |
| Documentation: | Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related 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:OperatingLeasesRentExpenseNet |
| Label | Role | Language |
| Operating Leases, Rent Expense, Net | http://www.xbrl.org/2003/role/label | en-US |
| Operating Leases, Rent Expense, Net, Total | http://www.xbrl.org/2003/role/totalLabel | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 840 20 50 1 | http://fasb.org/us-gaap/role/ref/otherTransitionRef | 840 |