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Gain on Dispositions of Plant, Equipment and Timberlands - Summary for Sale of Timberlands and Other Assets (Detail) $ in Thousands | 12 Months Ended
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Dec. 31, 2018 USD ($) a | Dec. 31, 2017 USD ($) a | Dec. 31, 2016 USD ($)
Property, Plant and Equipment [Line Items] |  |  |
Proceeds | $ 3,462 | $ 218 | $ 29
Gain (loss) | $ 3,256 | $ 197 | (116)
Timberlands [Member] |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Acres | a | 1,918 | 332 |
Proceeds | $ 3,414 | $ 209 |
Gain (loss) | 3,225 | 188 |
Other [Member] |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Proceeds | 48 | 9 | 29
Gain (loss) | $ 31 | $ 9 | $ (116)

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- Definition Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585 + Details
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- Definition The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3179-108585 + Details
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- 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. + References No definition available. + Details
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- Details
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