Nature of Business Operations (Details)	12 Months Ended
	Dec. 31, 2012 Acres	Dec. 31, 2011 Acres
Acres Of Timberland Owned Managed	2,700,000
Acres of High Value Real Estate Owned	200,000
Forest Resources [Member]
Acres Of Timberland Owned Managed	2,600,000
Acres of Timberlands Acquired	88,000	308,000
Real Estate Segment [Member]
Area of Real Estate Property	100,000
Performance Fibers Segment [Member]
Production Capacity in Metric Tons	745,000
Percentage of Sales to Export Customers	63.00%
Performance Fibers Segment [Member] | Cellulose Specialties Expansion (CSE) [Member]
Increase in Cellulose Specialties Capacity	190,000
Decrease in Absorbent Materials Capacity	260,000
Anticipated Post-conversion Production Capacity in Metric Tons	675,000