| Standard label: | Retail Land Sales, Estimated Cost of Major Improvements |
| Name: | us-gaap:RetailLandSalesEstimatedCostOfMajorImprovements |
| Documentation: | The estimated total cost of expenditures for improvements in each major area from which sales are being made for the five years following the date of the accounting period. |
| Object type: | cm:Concept |
| Data type: | Monetary (xbrli:monetaryItemType) |
| Period type: | For Period (duration) |
| Balance type: | Debit |
| Abstract: | false |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:RetailLandSalesEstimatedCostOfMajorImprovements |
| Label | Role | Language |
| Retail Land Sales, Estimated Cost of Major Improvements | http://www.xbrl.org/2003/role/label | en-US |
| Retail Land Sales, Estimated Cost of Major Improvements, Total | http://www.xbrl.org/2003/role/totalLabel | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 976 330 50 1 (a) | http://fasb.org/us-gaap/role/ref/legacyRef | 976 |