| **Segment Information - Information by Business Segment (Details) (USD $)In Thousands, unless otherwise specified**    | 3 Months Ended | 9 Months Ended |          |
|------------------------------------------------------------------------------------------------------------------------|----------------|----------------|----------|
||
| **Segment Reporting Information [Line Items]**                                                                         |           |                |     |  |   |  |   |  |   |
| Operating revenues                                                                                                     | $ 36,827       |                | $ 55,907 |  | $ 97,388 |  | $ 116,780 |  |   |
| Income (loss) before equity in loss from unconsolidated affiliates and income taxes:                                   | 4,360          |                | 15,710   |  | 4,607 |  | 15,650 |  |   |
| Assets                                                                                                                 | 667,072        |                |     |  | 667,072 |  |   |  | 645,521 |
| Real estate sales                                                                                                      | 12,823         |                | 32,206   |  | 27,859 |  | 51,338 |  |   |
| Residential Real Estate                                                                                                |           |                |     |  |   |  |   |  |   |
| **Segment Reporting Information [Line Items]**                                                                         |           |                |     |  |   |  |   |  |   |
| Operating revenues                                                                                                     | 10,704         |                | 9,705    |  | 23,996 |  | 17,695 |  |   |
| Income (loss) before equity in loss from unconsolidated affiliates and income taxes:                                   | 2,432          |                | (630)    |  | 2,596 |  | (4,955) |  |   |
| Assets                                                                                                                 | 144,157        |                |     |  | 144,157 |  |   |  | 141,526 |
| Commercial Real Estate                                                                                                 |           |                |     |  |   |  |   |  |   |
| **Segment Reporting Information [Line Items]**                                                                         |           |                |     |  |   |  |   |  |   |
| Operating revenues                                                                                                     | 0              |                | 3,612    |  | 341 |  | 10,265 |  |   |
| Income (loss) before equity in loss from unconsolidated affiliates and income taxes:                                   | (394)          |                | (518)    |  | (1,794) |  | 614 |  |   |
| Assets                                                                                                                 | 62,779         |                |     |  | 62,779 |  |   |  | 64,961 |
| Rural land                                                                                                             |           |                |     |  |   |  |   |  |   |
| **Segment Reporting Information [Line Items]**                                                                         |           |                |     |  |   |  |   |  |   |
| Operating revenues                                                                                                     | 18             |                | 18,889   |  | 31 |  | 23,377 |  |   |
| Income (loss) before equity in loss from unconsolidated affiliates and income taxes:                                   | (2)            |                | 14,663   |  | (19) |  | 16,848 |  |   |
| Assets                                                                                                                 | 6,156          |                |     |  | 6,156 |  |   |  | 6,219 |
| Resorts, leisure and leasing operations                                                                                |           |                |     |  |   |  |   |  |   |
| **Segment Reporting Information [Line Items]**                                                                         |           |                |     |  |   |  |   |  |   |
| Operating revenues                                                                                                     | 18,392         | [1]            | 14,143   | [1] | 45,524 | [1] | 36,659 | [1] |   |
| Income (loss) before equity in loss from unconsolidated affiliates and income taxes:                                   | 3,074          |                | 1,255    |  | 5,697 |  | 2,139 |  |   |
| Assets                                                                                                                 | 139,534        |                |     |  | 139,534 |  |   |  | 125,596 |
| Real estate sales                                                                                                      | 2,100          |                |     |  | 3,100 |  |   |  |   |
| Forestry                                                                                                               |           |                |     |  |   |  |   |  |   |
| **Segment Reporting Information [Line Items]**                                                                         |           |                |     |  |   |  |   |  |   |
| Operating revenues                                                                                                     | 7,695          |                | 9,558    |  | 27,145 |  | 28,784 |  |   |
| Income (loss) before equity in loss from unconsolidated affiliates and income taxes:                                   | 2,757          |                | 3,709    |  | 10,096 |  | 9,607 |  |   |
| Assets                                                                                                                 | 52,904         |                |     |  | 52,904 |  |   |  | 53,839 |
| Other                                                                                                                  |           |                |     |  |   |  |   |  |   |
| **Segment Reporting Information [Line Items]**                                                                         |           |                |     |  |   |  |   |  |   |
| Operating revenues                                                                                                     | 18             |                | 0        |  | 351 |  | 0 |  |   |
| Income (loss) before equity in loss from unconsolidated affiliates and income taxes:                                   | (3,507)        |                | (2,769)  |  | (11,969) |  | (8,603) |  |   |
| Assets                                                                                                                 | $ 261,542      |                |     |  | $ 261,542 |  |   |  | $ 253,380 |
|                                                                                                                        |
| [1]Includes $2.1 million and $3.1 million of real estate sales for the three and nine months ended September 30, 2013. |

| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.
+ References
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|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Sum of operating profit and nonoperating income or expense before Income or Loss from equity method investments, income taxes, extraordinary items, and noncontrolling interest.
+ References
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Aggregate revenue recognized during the period (derived from goods sold, services rendered, insurance premiums, or other activities that constitute an entity's earning process). For financial services companies, also includes investment and interest income, and sales and trading gains.
+ References
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|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - 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.
+ References
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| X                                                                                                                                                                        |
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