| Standard label: | Direct Financing Lease, Interest Income |
| Name: | us-gaap:DirectFinancingLeaseInterestIncome |
| Documentation: | Amount of interest income from net investment in direct financing lease. |
| 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:DirectFinancingLeaseInterestIncome |
| Label | Role | Language |
| Direct Financing Lease, Interest Income | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 270 10 50 6A | http://www.xbrl.org/2003/role/disclosureRef | 270 |
| FASB Accounting Standards Codification 842 30 50 5 (a)(2) | http://www.xbrl.org/2003/role/disclosureRef | 842 |
| Part Of Roll Up: |
| us-gaap:Revenues |