Segment Reporting - Revenue (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Segment Reporting, Revenue Reconciling Item
Revenues	$ 101,755	$ 106,786	$ 280,511	$ 268,800
Total income (loss) before income taxes	(10,210)	10,846	(23,402)	(16,326)
Water Resource and Water Storage Operations
Segment Reporting, Revenue Reconciling Item
Revenues	1,087	510	1,464	25,542
Total income (loss) before income taxes	(1,131)	(1,799)	(4,965)	737
Real Estate Operations
Segment Reporting, Revenue Reconciling Item
Revenues	55,794	23,712	145,212	63,641
Total income (loss) before income taxes	(795)	(231)	(6,251)	(2,701)
Agribusiness Operations
Segment Reporting, Revenue Reconciling Item
Revenues	42,597	55,308	127,380	139,788
Total income (loss) before income taxes	(3,063)	(2,216)	(4,962)	(20,691)
Enterprise Software
Segment Reporting, Revenue Reconciling Item
Revenues		4,402		13,649
Total income (loss) before income taxes		(2,572)		(5,281)
Corporate
Segment Reporting, Revenue Reconciling Item
Revenues	2,277	22,854	6,455	26,180
Total income (loss) before income taxes	$ (5,221)	$ 17,664	$ (7,224)	$ 11,610