Segment Reporting (Details) Assets and Liabilities (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Segment Reporting, Asset Reconciling Item
Assets	$ 751,690	$ 762,552
Water Resource and Water Storage Operations
Segment Reporting, Asset Reconciling Item
Assets	193,118	193,105
Real Estate Operations
Segment Reporting, Asset Reconciling Item
Assets	276,670	276,954
Agribusiness Operations
Segment Reporting, Asset Reconciling Item
Assets	157,942	155,005
Corporate
Segment Reporting, Asset Reconciling Item
Assets	$ 123,960	$ 137,488