Segment and Geographical Information - Schedule of Sales by Product Line (Details) (USD $)	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Segment Reporting Information [Line Items]
Sales by Product Line	$ 147,360,000	$ 149,829,000	$ 163,145,000	$ 143,187,000	$ 238,515,000	$ 159,261,000	$ 154,889,000	$ 107,053,000	$ 603,521,000		$ 659,718,000		$ 378,608,000
Southern Timber [Member]
Segment Reporting Information [Line Items]
Sales by Product Line									142,000,000		124,000,000		109,000,000
Pacific Northwest Timber [Member]
Segment Reporting Information [Line Items]
Sales by Product Line									102,000,000		110,000,000		110,000,000
New Zealand Timber [Member]
Segment Reporting Information [Line Items]
Sales by Product Line									182,000,000	[1]	148,000,000	[1]	11,000,000	[1]
Real Estate [Member]
Segment Reporting Information [Line Items]
Sales by Product Line									77,000,000	[2]	149,000,000	[2]	57,000,000	[2]
Acres of timberland divested					128,000
Sale of New York timberlands					57,000,000
Real Estate [Member] | Unimproved Development [Member]
Segment Reporting Information [Line Items]
Sales by Product Line									5,000,000		3,000,000		2,000,000
Real Estate [Member] | Improved Development [Member]
Segment Reporting Information [Line Items]
Sales by Product Line									0		2,000,000		0
Real Estate [Member] | Rural [Member]
Segment Reporting Information [Line Items]
Sales by Product Line									41,000,000		27,000,000		32,000,000
Real Estate [Member] | Non-Strategic Timberlands [Member]
Segment Reporting Information [Line Items]
Sales by Product Line									31,000,000	[2]	117,000,000	[2]	23,000,000	[2]
Trading [Member]
Segment Reporting Information [Line Items]
Sales by Product Line									104,000,000		132,000,000		94,000,000
Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Sales by Product Line									$ (3,000,000)		$ (3,000,000)		$ (2,000,000)

[1] {F|ahBzfndlYmZpbGluZ3MtaHJkcmoLEgZYTUxEb2MiXlhCUkxEb2NHZW5JbmZvOjFhYzhhMzYwY2FiMTQyMWZhZjFjNzkwN2Y0MTBiMTc0fFRleHRTZWxlY3Rpb246MDBFNkY3Q0QzN0EwQTA4QTIwNDUyRkUwRkI4NDNCNzgM}

[2] 2013 included a fourth quarter sale of approximately 128,000 acres of New York timberlands for $57 million.