Timber and Timberlands Timber and Timberlands (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Timber and Timberlands [Line Items]
Timber and Timberlands	$ 394,913,000	$ 400,874,000
Deposits on Timberlands	7,871,000	0
Logging Roads	61,683,000	58,813,000
Timber and Timberlands, Net	464,467,000	459,687,000
Depletion from Company Owned Lands	12,900,000	14,100,000	17,200,000
Amortization of Logging Roads	$ 2,600,000	$ 2,400,000	$ 2,400,000