Real Estate Activity Real Estate Activity - Sold (Details) |
1 Months Ended | 3 Months Ended | ||
|---|---|---|---|---|
|
Mar. 31, 2018
USD ($)
a
|
Feb. 28, 2018
USD ($)
a
|
Mar. 31, 2018
USD ($)
a
|
Mar. 31, 2017
USD ($)
|
|
| Real Estate [Line Items] | Ìý | Ìý | Ìý | Ìý |
| Approximate number of acres sold (in acres) | a | Ìý | Ìý | 120.0 | Ìý |
| Contract sale price | $ | Ìý | Ìý | $ 2,750,000 | $ 0 |
| Loving County | Ìý | Ìý | Ìý | Ìý |
| Real Estate [Line Items] | Ìý | Ìý | Ìý | Ìý |
| Approximate number of acres sold (in acres) | a | Ìý | 40.0 | Ìý | Ìý |
| Contract sale price | $ | Ìý | $ 1,150,000 | Ìý | Ìý |
| Culberson County | Ìý | Ìý | Ìý | Ìý |
| Real Estate [Line Items] | Ìý | Ìý | Ìý | Ìý |
| Approximate number of acres sold (in acres) | a | 80.0 | Ìý | Ìý | Ìý |
| Contract sale price | $ | $ 1,600,000 | Ìý | Ìý | Ìý |
| X | ||||||||||
- Definition Real Estate Sold, Acres No definition available.
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Definition Revenue from the sale of commercial, industrial, or residential property during the period. This element is more likely than not relevant to an entity for which real estate operations are a principal activity. If real estate operations are not a principal activity, the reporting entity would likely use a gain (loss) on sale of property, plant, or equipment type element. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|