| Standard label: | Inventory, Real Estate |
| Name: | us-gaap:InventoryRealEstate |
| Documentation: | Total of (1) improvements, (2) held-for-sale, (3) land and land under development, (4) construction-in-process, (5) mortgage loans held-in-inventory, and (6) other real estate investments which are considered inventory due to being held for sale or disposition. |
| Object type: | cm:Concept |
| Data type: | Monetary (xbrli:monetaryItemType) |
| Period type: | As Of (instant) |
| Balance type: | Debit |
| Abstract: | false |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:InventoryRealEstate |
| Label | Role | Language |
| Inventory, Real Estate | http://www.xbrl.org/2003/role/label | en-US |
| Inventory, Real Estate, Total | http://www.xbrl.org/2003/role/totalLabel | en-US |
| Reference | Role | Topic |
| Part Of Roll Up: |
| us-gaap:AssetsNoncurrent |