Other Operating Income, Net (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011		Dec. 31, 2010	Dec. 31, 2009
Lease income, primarily for hunting	$ 13,071		$ 12,144	$ 13,578
Other non-timber income	2,145		2,822	3,321
AFMC (Note 8)				205,229
Loss on sale or disposal of property plant & equipment	(7,412)	[1]	(871)	(2,695)
Environmental and disposition reserve adjustments	(5,989)	[2]	(3,201)	(682)
Miscellaneous income (expense), net	2,014		(375)	2,421
Total	3,829		10,519	221,172
Accrual for Environmental Loss Contingencies, Increase (Decrease) for Revision in Estimates	6,873		3,201	2,111
Gain (Loss) on Sale of Property Plant Equipment [Abstract]
Description of PP&E write-off	write-off related to process equipment changes needed for the CSE project
Amount of PP&E write-off	5,500
Port Angeles Increase in Disposition Reserve [Member]
Accrual for Environmental Loss Contingencies, Increase (Decrease) for Revision in Estimates	$ 6,500

[1] 2011 included a $5.5 million write-off related to process equipment changes needed for the CSE project.

[2] 2011 included a $6.5 million increase in a disposition reserve for a closed mill site. For additional information, see Note 15 —Liabilities for Dispositions and Discontinued Operations.