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Summary of Significant Accounting Policies Assets Held for Sale (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Property, Plant and Equipment [Line Items] |  |  |
Assets Held For Sale Property Plant and Equipment Net | $ 9.0 | $ 9.3 |
Capitalized Interest Costs, Including Allowance for Funds Used During Construction | (1.9) | (1.3) | $ (1.6)
Sales Price of held-for-sale assets |  | 11.9 |
Land, land improvements and logging roads, net of road amortization [Member] |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Assets Held For Sale Property Plant and Equipment Net | 1.8 | 1.3 |
Building [Member] |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Assets Held For Sale Property Plant and Equipment Net | 0.5 | 0.3 |
Machinery and equipment [Member] |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Assets Held For Sale Property Plant and Equipment Net | $ 6.7 | $ 7.7 |

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- Definition Amount of interest capitalized, including amount of allowance for funds used during construction. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Allowance for Funds Used during Construction -URI http://asc.fasb.org/extlink&oid=6504829 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 980 -SubTopic 835 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6501662&loc=d3e56162-110433 + Details
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