Segment Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011	Dec. 31, 2011
Segment Reporting Information [Line Items]
Consolidated operating revenues	$ 30,518	$ 73,436
Consolidated (loss) income from operations before equity in (loss) income of unconsolidated affiliates and income taxes	(222)	21,667
Consolidated (loss) income from operations before equity in (loss) income of unconsolidated affiliates and income taxes	(222)	21,667
Total Assets	662,870		661,291
Residential Real Estate [Member]
Segment Reporting Information [Line Items]
Consolidated operating revenues	10,520	7,765
Consolidated (loss) income from operations before equity in (loss) income of unconsolidated affiliates and income taxes	(3,799)	(8,845)
Total Assets	274,584		272,210
Commercial Real Estate [Member]
Segment Reporting Information [Line Items]
Consolidated operating revenues	6,220	297
Consolidated (loss) income from operations before equity in (loss) income of unconsolidated affiliates and income taxes	1,894	(1,866)
Total Assets	68,450		67,650
Rural Land Sales [Member]
Segment Reporting Information [Line Items]
Consolidated operating revenues	4,283	2,750
Consolidated (loss) income from operations before equity in (loss) income of unconsolidated affiliates and income taxes	2,139	2,285
Total Assets	8,482		10,048
Forestry [Member]
Segment Reporting Information [Line Items]
Consolidated operating revenues	9,495	62,624
Consolidated (loss) income from operations before equity in (loss) income of unconsolidated affiliates and income taxes	2,761	52,744
Total Assets	55,247		58,638
Other [Member]
Segment Reporting Information [Line Items]
Consolidated (loss) income from operations before equity in (loss) income of unconsolidated affiliates and income taxes	(3,217)	(22,651)
Total Assets	$ 256,107		$ 252,745