Nature of Business Operations (Narrative) (Details 2) $ in Thousands	1 Months Ended	12 Months Ended
	Nov. 30, 2011 a	Dec. 31, 2015 USD ($) a core_business_area	Dec. 31, 2014 USD ($) a	Dec. 31, 2013 USD ($)	Apr. 30, 2013	Apr. 04, 2013 a
Segment Reporting Information [Line Items]
Acres of timberland owned leased		2,700,000
Percentage of voting interests acquired						39.00%
Acres of timberland owned or leased						400,000
Ownership percentage by parent					65.00%	65.00%
Acres acquired	250,000	36,750	62,344
Payments to acquire timberlands | $		$ 98,409	$ 130,896	$ 20,401
Number of core business areas | core_business_area		2
New Zealand
Segment Reporting Information [Line Items]
Acres of timberland owned leased		1,800
Acres acquired		1,767	546
Lease payments | $		$ 9,900
Florida Georgia Louisianna Mississippi and Oregon
Segment Reporting Information [Line Items]
Acres acquired		35,000
Payments to acquire timberlands | $		$ 88,500
Alabama, Florida, Georgia, Texas and Washington Timberland Acquisitions
Segment Reporting Information [Line Items]
Acres acquired			62,000
New Zealand JV
Segment Reporting Information [Line Items]
Percentage of voting interests acquired						39.00%
Acres of timberland owned or leased						400,000
Ownership percentage by parent						65.00%
New Zealand JV | New Zealand
Segment Reporting Information [Line Items]
Acres of timberland owned or leased						439,000
Productive acres of timberland						299,000
Timber Segment
Segment Reporting Information [Line Items]
Acres of timberland owned leased		2,700,000