| Standard label: | Operating Leases, Income Statement, Lease Revenue |
| Name: | us-gaap:OperatingLeasesIncomeStatementLeaseRevenue |
| Documentation: | The total amount of revenue recognized for the period from operating leases, including minimum lease revenue, contingent revenue, percentage revenue and sublease revenue. |
| 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:OperatingLeasesIncomeStatementLeaseRevenue |
| Label | Role | Language |
| Operating Leases, Income Statement, Lease Revenue | http://www.xbrl.org/2003/role/label | en-US |
| Operating Leases, Income Statement, Lease Revenue, Total | http://www.xbrl.org/2003/role/totalLabel | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 840 20 25 1 | http://fasb.org/us-gaap/role/ref/otherTransitionRef | 840 |