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Segment Reporting - Assets and Liabilities (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2015
Dec. 31, 2014
Segment Reporting, Asset Reconciling Item    
Assets $ 782,519us-gaap_Assets $ 804,444us-gaap_Assets
Water resource and water storage operations    
Segment Reporting, Asset Reconciling Item    
Assets 187,503us-gaap_Assets
/ us-gaap_StatementBusinessSegmentsAxis
= pico_WaterResourceAndWaterStorageOperationsMember		 186,294us-gaap_Assets
/ us-gaap_StatementBusinessSegmentsAxis
= pico_WaterResourceAndWaterStorageOperationsMember
Real estate operations    
Segment Reporting, Asset Reconciling Item    
Assets 384,802us-gaap_Assets
/ us-gaap_StatementBusinessSegmentsAxis
= pico_RealEstateOperationsMember		 384,855us-gaap_Assets
/ us-gaap_StatementBusinessSegmentsAxis
= pico_RealEstateOperationsMember
Agribusiness operations    
Segment Reporting, Asset Reconciling Item    
Assets 142,517us-gaap_Assets
/ us-gaap_StatementBusinessSegmentsAxis
= pico_AgribusinessOperationsMember		 152,554us-gaap_Assets
/ us-gaap_StatementBusinessSegmentsAxis
= pico_AgribusinessOperationsMember
Corporate    
Segment Reporting, Asset Reconciling Item    
Assets $ 67,697us-gaap_Assets
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateMember		 $ 80,741us-gaap_Assets
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateMember