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Summary of Significant Accounting Policies Assets Held for Sale (Details) - USD ($) $ in Millions | Dec. 31, 2016 | Dec. 31, 2015
--- | --- | ---
Property, Plant and Equipment [Line Items] |  |
Assets Held For Sale Property Plant and Equipment Net | $ 8.2 | $ 9.0
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 | 1.3 | 1.8
Building [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Assets Held For Sale Property Plant and Equipment Net | 0.3 | 0.5
Machinery and equipment [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Assets Held For Sale Property Plant and Equipment Net | $ 6.6 | $ 6.7

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- Definition Assets Held For Sale Property Plant and Equipment Net + References No definition available. + Details
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Balance Type: | debit
Period Type: | instant

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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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Namespace Prefix: |
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- Details
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- Details
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Namespace Prefix: |
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