Assets Held for Sale (Details) (USD $) In Millions, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Property, Plant and Equipment [Line Items]
Sales Price of held-for-sale assets	$ 11.9
Property, plant and equipment held for sale [Abstract]
Assets held-for-sale, property, plant and equipment	59.4	112.2
Assets held for sale acumulated depreciation	(50.1)	(95.9)
Assets Held For Sale Property Plant and Equipment Net	9.3	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	4.5	6.9
Building [Member]
Property, plant and equipment held for sale [Abstract]
Assets held-for-sale, property, plant and equipment	2.9	6.2
Machinery and Equipment [Member]
Property, plant and equipment held for sale [Abstract]
Assets held-for-sale, property, plant and equipment	$ 52.0	$ 99.1