Segment and Geographical Information (Details) (USD $)	3 Months Ended									12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011		Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012		Dec. 31, 2011		Dec. 31, 2010
Segment Reporting Information [Line Items]
Accrual for Environmental Loss Contingencies, Increase (Decrease) for Revision in Estimates										$ 797,000		$ 6,873,000		$ 3,201,000
Total Capital Expenditures										468,000,000		508,000,000		144,000,000
Segment Reporting Information, Total Additions to Long-Lived Assets										468,000,000		613,000,000		144,000,000
Depreciation, depletion and amortization										148,718,000		135,742,000		143,406,000
Operating Income (Loss)	115,678,000	113,174,000	98,590,000	84,009,000	81,325,000	[1]	108,310,000	79,073,000	87,578,000	411,451,000		356,286,000		281,951,000
Sales	434,306,000	408,988,000	371,926,000	355,780,000	388,423,000		385,091,000	357,397,000	357,731,000	1,571,000,000		1,488,642,000		1,315,233,000
Assets	3,122,951,000				2,569,348,000					3,122,951,000		2,569,348,000
Noncash or Part Noncash Acquisition, Debt Assumed										0		(105,000,000)		0
Secured Mortgage Notes Assumed with Timberland Acquisition [Member]
Segment Reporting Information [Line Items]
Noncash or Part Noncash Acquisition, Debt Assumed										0		(105,000,000)		0
Port Angeles Increase in Disposition Reserve [Member]
Segment Reporting Information [Line Items]
Accrual for Environmental Loss Contingencies, Increase (Decrease) for Revision in Estimates												6,500,000
Forest Resources
Segment Reporting Information [Line Items]
Segment Reporting Information, Total Additions to Long-Lived Assets										156,000,000	[2]	468,000,000	[2]	41,000,000	[2]
Depreciation, depletion and amortization										75,000,000		63,000,000		59,000,000
Operating Income (Loss)										46,000,000		47,000,000		33,000,000
Sales										230,000,000		215,000,000		177,000,000
Assets	1,690,000,000				1,604,000,000					1,690,000,000		1,604,000,000
Real Estate Segment
Segment Reporting Information [Line Items]
Depreciation, depletion and amortization										8,000,000		12,000,000		22,000,000
Operating Income (Loss)										32,000,000		47,000,000		53,000,000
Sales										57,000,000		71,000,000		96,000,000
Assets	113,000,000				103,000,000					113,000,000		103,000,000
Performance Fibers Segment
Segment Reporting Information [Line Items]
Segment Reporting Information, Total Additions to Long-Lived Assets										309,000,000	[3]	140,000,000	[3]	98,000,000
Depreciation, depletion and amortization										61,000,000		56,000,000		58,000,000
Operating Income (Loss)										359,000,000		298,000,000		214,000,000
Sales										1,093,000,000		1,020,000,000		881,000,000
Assets	902,000,000				646,000,000					902,000,000		646,000,000
Performance Fibers Segment | Cellulose Specialties Expansion (CSE) [Member]
Segment Reporting Information [Line Items]
Strategic Capital										201,000,000		43,000,000
Performance Fibers Segment | Customer 1
Segment Reporting Information [Line Items]
Entity-Wide Revenue, Major Customer, Percentage										15.00%		15.00%		14.00%
Performance Fibers Segment | Customer 2
Segment Reporting Information [Line Items]
Entity-Wide Revenue, Major Customer, Percentage										10.00%		11.00%		10.00%
Performance Fibers Segment | Customer 3
Segment Reporting Information [Line Items]
Entity-Wide Revenue, Major Customer, Percentage										12.00%		11.00%
Performance Fibers Segment | Customer 4
Segment Reporting Information [Line Items]
Entity-Wide Revenue, Major Customer, Percentage										10.00%
Wood Products Segment
Segment Reporting Information [Line Items]
Segment Reporting Information, Total Additions to Long-Lived Assets										2,000,000		3,000,000		1,000,000
Depreciation, depletion and amortization										3,000,000		3,000,000		3,000,000
Operating Income (Loss)										10,000,000		(2,000,000)		2,000,000
Sales										88,000,000		68,000,000		68,000,000
Assets	18,000,000				21,000,000					18,000,000		21,000,000
Other Operations
Segment Reporting Information [Line Items]
Operating Income (Loss)										0		1,000,000		1,000,000
Sales										105,000,000		122,000,000		102,000,000
Assets	23,000,000				25,000,000					23,000,000		25,000,000
Intersegment Elimination
Segment Reporting Information [Line Items]
Sales										(2,000,000)	[4]	(7,000,000)	[4]	(9,000,000)	[4]
Corporate and other
Segment Reporting Information [Line Items]
Segment Reporting Information, Total Additions to Long-Lived Assets										1,000,000		2,000,000		4,000,000
Gain on sale of a portion of interest in the New Zealand joint venture														12,000,000
Depreciation, depletion and amortization										2,000,000		2,000,000		1,000,000
Operating Income (Loss)										(36,000,000)		(35,000,000)	[5]	(21,000,000)	[5]
Assets	377,000,000				170,000,000					377,000,000		170,000,000
Corporate and other | Port Angeles Increase in Disposition Reserve [Member]
Segment Reporting Information [Line Items]
Accrual for Environmental Loss Contingencies, Increase (Decrease) for Revision in Estimates												7,000,000
Timber Properties | Forest Resources
Segment Reporting Information [Line Items]
Strategic Capital										$ 107,000,000		$ 426,000,000		$ 5,000,000

[1] Fourth quarter 2011 included a pre-tax expense of $6.5 million ($4.1 million after tax) due to an increase in a disposition reserve.

[2] Includes strategic timberland acquisitions of $107 million, $426 million (including assumption of a $105 million loan) and $5 million in 2012, 2011 and 2010, respectively.

[3] Includes $201 million and $43 million of strategic capital expenditures related to the Jesup mill CSE in 2012 and 2011, respectively.

[4] Intersegment eliminations reflect sales from our Forest Resources segment to our Performance Fibers segment.

[5] 2011 included a $7 million increase in a disposition reserve. 2010 included a $12 million gain from the sale of a portion of the Company's interest in the JV. See Note 15 — Liabilities for Dispositions and Discontinued Operations and Note 5 — Joint Venture Investment.