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Acquisition of Peace Valley OSB (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013 | Jun. 30, 2013
Business Acquisition [Line Items] |  |  |  |
Noncontrolling Interest, Ownership Percentage by Parent | 50.00% |  |  |
Equity Interest in Joint Venture, Fair Value at Acquisition Date | $ 95.9 |  |  |
Gain on acquisition of joint venture | 0.0 | $ 0.0 | $ 35.9 |
Acquisition Purchase Price | 74.6 |  |  |
Adjustment to contingent consideration fair value | 0.2 | 3.2 | 20.5 |
Net Assets Acquired | 194.8 |  |  |
Business Combination, Assets Acquired, Current Assets | 22.7 |  |  |
Business Combination, Assets Acquired, Property, Plant, and Equipment | 146.4 |  |  |
Business Combination, Assets Acquired, Intangibles | 43.8 |  |  |
Business Combination, Assets Acquired, Timber Licenses | 34.1 |  |  |
Goodwill | 9.7 | $ 9.7 | $ 9.7 |
Business Combination, Liabilities Assumed, Current Liabilities | 8.7 |  |  |
Business Combination, Liabilities Assumed, Long-Term Liabilities | 9.4 |  |  |
Long-Term Liability [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Contingent Consideration, Liability | $ 0.0 |  |  | $ 24.3

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