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Summary of Significant Accounting Policies - Reclassifications (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Accounting Policies [Abstract] |  |  |
Timber and timberlands, seeds and seedlings | $ 5,500 | $ 4,800 |
HBU real estate not expected to be sold within next 12 months | 65,400 | 77,400 |
Real estate development investments | 2,676 | 3,674 | $ 1,292
Silvicultural expenditures on higher and better use property | $ 300 | $ 200 |

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- Definition Other Assets, Timberland HBU, Held-for-use + References No definition available. + Details
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- Definition Silvicultural Expenditures On Higher and Better Use Property + References No definition available. + Details
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- Definition Timber And Timberlands, Seeds And Seedlings + References No definition available. + Details
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- References No definition available. + Details
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- Definition Payments to develop real estate assets is the process of adding improvements on or to a parcel of land. Such improvements may include drainage, utilities, subdividing, access, buildings, and any combination of these elements; and are generally classified as cash flow from investing activities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3213-108585 + Details
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