| Standard label: | Gain (Loss) on Sale of Leased Assets, Net, Operating Leases |
| Name: | us-gaap:GainLossOnSaleOfLeasedAssetsNetOperatingLeases |
| Documentation: | The net gain (loss) arising from the lessor's sale of assets held- or available-for-lease under contractual arrangements classified as operating leases. |
| 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:GainLossOnSaleOfLeasedAssetsNetOperatingLeases |
| Label | Role | Language |
| Gain (Loss) on Sale of Leased Assets, Net, Operating Leases | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 840 30 40 8 | http://fasb.org/us-gaap/role/ref/legacyRef | 840 |
| Part Of Roll Up: |
| us-gaap:NonoperatingIncomeExpense |