Segment Information (Capital Expenditures) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Segment Reporting Information [Line Items]
Capital Expenditures	$ 30,722	$ 16,064	$ 18,379
Residential Real Estate [Member]
Segment Reporting Information [Line Items]
Capital Expenditures	13,336	7,557	13,687
Commercial Real Estate [Member]
Segment Reporting Information [Line Items]
Capital Expenditures	14,467	7,415	984
Rural Land Sales [Member]
Segment Reporting Information [Line Items]
Capital Expenditures	60	195	328
Forestry [Member]
Segment Reporting Information [Line Items]
Capital Expenditures	2,766	785	719
Other [Member]
Segment Reporting Information [Line Items]
Capital Expenditures	93	112	679
Discontinued Operations [Member]
Segment Reporting Information [Line Items]
Capital Expenditures			$ 1,982