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Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2016
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES [Abstract] |
Schedule of Inventory, Current [Table Text Block] | Inventory Inventories are valued at the lower of cost or market. Inventory costs include materials, labor and operating overhead. The LIFO (last-in, first-out) method is used for a minor portion of the Company’s log inventories with the remaining inventories valued at FIFO (first-in, first-out) or average cost. Inventory consists of the following:
| December 31,
Dollar amounts in millions | 2016 |  | 2015
Logs | $ | 54.6 |  |  | $ | 58.6 |
Other raw materials | 23.0 |  |  | 21.6 |
Semi finished inventory | 16.8 |  |  | 18.5 |
Finished products | 140.2 |  |  | 123.3 |
Total | $ | 234.6 |  |  | $ | 222.0 |
Property, Plant and Equipment [Table Text Block] | Plant, property and equipment, net consists of the following:
Dollar amounts in millions | December 31,
2016 |  | 2015
Property, plant and equipment, at cost: |  |  |
Land, land improvements and logging roads, net of road amortization | $ | 151.5 |  |  | $ | 137.0 |
Buildings | 328.8 |  |  | 324.6 |
Machinery and equipment | 1,881.8 |  |  | 1,897.4 |
Construction in progress | 48.7 |  |  | 33.5 |
| 2,410.8 |  |  | 2,392.5 |
Accumulated depreciation | (1,527.6 | ) |  | (1,530.1 | )
Property, plant and equipment, net | $ | 883.2 |  |  | $ | 862.4 |
Disclosure of Long Lived Assets Held-for-sale [Table Text Block] | The current book values of assets held for sale by category is as follows:
Dollar amounts in millions | December 31,
2016 |  | 2015
Property, plant and equipment, at cost: |  |  |
Land, land improvements and logging roads, net of road amortization | $ | 1.3 |  |  | $ | 1.8 |
Buildings | 0.3 |  |  | 0.5 |
Machinery and equipment | 6.6 |  |  | 6.7 |
Net property, plant and equipment | $ | 8.2 |  |  | $ | 9.0 |

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- Definition Tabular disclosure of long lived assets held for sale. Disclosure may include the description of the facts and circumstances leading to the expected disposal, manner and timing of disposal, the carrying value of the assets held for sale, the gain (loss) recognized in the income statement and the income statement caption that includes that gain (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=64862545&loc=d3e2941-110230 + Details
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- Definition Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(13)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Tabular disclosure of the carrying amount as of the balance sheet date of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(6)(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(6)(a)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6361739&loc=d3e7789-107766 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(6)(c)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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