| Standard label: | Equipment Trust Certificate [Member] |
| Name: | us-gaap:EquipmentTrustCertificateMember |
| Documentation: | A debt security issued by a trust that purchases equipment that is then leased to the entity. The revenue stream of the leased asset services the debt. When the trust retires or otherwise satisfies the certificates, title to the asset will generally pass to the lessee. This form of financing, for example, is commonly used by, but not limited to, airlines and railroads for the purchase of aircraft or rolling stock, respectively. |
| Object type: | cm:Member |
| Data type: | [Member] (nonnum:domainItemType) |
| Period type: | For Period (duration) |
| Balance type: | (no balance type) |
| Abstract: | true |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:EquipmentTrustCertificateMember |
| Label | Role | Language |
| Equipment Trust Certificate [Member] | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |