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Assets Held for Sale (Details) (USD $)
In Millions, unless otherwise specified
Mar. 31, 2014
Dec. 31, 2013
Property, plant and equipment held for sale [Abstract]    
Assets held-for-sale, property, plant and equipment $ 112.2 $ 112.2
Assets held for sale acumulated depreciation (95.9) (95.9)
Assets Held For Sale Property Plant and Equipment Net 16.3 16.3
Land Land Improvements And Logging Roads Net of Road Amortization [Member]
   
Property, plant and equipment held for sale [Abstract]    
Assets held-for-sale, property, plant and equipment 6.9 6.9
Building [Member]
   
Property, plant and equipment held for sale [Abstract]    
Assets held-for-sale, property, plant and equipment 6.2 6.2
Machinery and Equipment [Member]
   
Property, plant and equipment held for sale [Abstract]    
Assets held-for-sale, property, plant and equipment $ 99.1 $ 99.1