Description Of Business And Basis Of Presentation (Narrative) (Details) (USD $)	3 Months Ended
	Mar. 31, 2012 acre	Mar. 31, 2011
Description Of Business And Basis Of Presentation [Line Items]
Land owned (acres)	573,000
Minimum projected price appreciation over time	0.00%
Maximum projected price appreciation over time	10.00%
Estimated developer profit based On development costs	20.00%
Future holding period of operating properties (in years)	$ 13
Timber deed sale agreement, value		55,900,000
Percentage of buyer first thinnings at fair market value	85.00%
Purchase price of First Thinnings	100,000
Timber deed revenue	9,495,000	62,624,000
Timber Deed [Member]
Description Of Business And Basis Of Presentation [Line Items]
Timber deed land owned		40,975
Timber deed revenue		54,500,000
Imputed land lease revenue		$ 1,400,000
Maximum [Member]
Description Of Business And Basis Of Presentation [Line Items]
Length of the estimated development and selling periods	13
Maximum [Member] | Timber Deed [Member]
Description Of Business And Basis Of Presentation [Line Items]
Timber deed sale agreement, term (years)		20
Minimum [Member]
Description Of Business And Basis Of Presentation [Line Items]
Length of the estimated development and selling periods	4