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Reporting Segments and Related Information - Revenue Components of Ranch Operations (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2017 USD ($) a field | Dec. 31, 2016 USD ($) | Dec. 31, 2015 USD ($)
Revenue from External Customer [Line Items] |  |  |
Area of land | a | 270,000 |  |
Total revenues | $ 35,657 | $ 45,577 | $ 51,147
Ranch operations | High Desert Hunt Club |  |  |
Revenue from External Customer [Line Items] |  |  |
Area of land | a | 6,400 |  |
Hunting fields | field | 35 |  |
Operating Segments |  |  |
Revenue from External Customer [Line Items] |  |  |
Total revenues | $ 35,657 | 45,577 | 51,147
Operating Segments | Ranch operations |  |  |
Revenue from External Customer [Line Items] |  |  |
Total revenues | 3,837 | 3,338 | 3,923
Operating Segments | Ranch operations | Game management |  |  |
Revenue from External Customer [Line Items] |  |  |
Total revenues | 1,291 | 1,296 | 1,658
Operating Segments | Ranch operations | Grazing |  |  |
Revenue from External Customer [Line Items] |  |  |
Total revenues | 1,677 | 1,187 | 1,484
Operating Segments | Ranch operations | High Desert Hunt Club |  |  |
Revenue from External Customer [Line Items] |  |  |
Total revenues | 351 | 334 | 351
Operating Segments | Ranch operations | Filming and other |  |  |
Revenue from External Customer [Line Items] |  |  |
Total revenues | $ 518 | $ 521 | $ 430

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- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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