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UCP Initial Public Offering (Details) Carrying Value of Noncontrolling Interest (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Noncontrolling Interest [Line Items]      
Income of UCP, Inc. and UCP, LLC attributable to noncontrolling interest $ (7,180)us-gaap_NetIncomeLossAttributableToNoncontrollingInterest $ (6,896)us-gaap_NetIncomeLossAttributableToNoncontrollingInterest $ (2,579)us-gaap_NetIncomeLossAttributableToNoncontrollingInterest
Ending balance of noncontrolling interest at December 31, 2013 86,064us-gaap_MinorityInterest 91,956us-gaap_MinorityInterest  
UCP      
Noncontrolling Interest [Line Items]      
Carrying value of UCP, Inc. (includes net proceeds raised in the public offering)   214,790pico_CarryingValueofSubsidiary
/ dei_LegalEntityAxis
= pico_UCPMember		  
Voting ownership percentage of noncontrolling interest 57.20%pico_VotingInterestNotControlledbyParent
/ dei_LegalEntityAxis
= pico_UCPMember		 42.25%pico_VotingInterestNotControlledbyParent
/ dei_LegalEntityAxis
= pico_UCPMember		  
Initial carrying value of noncontrolling interest   90,749pico_CarryingValueofNoncontrollingInterest
/ dei_LegalEntityAxis
= pico_UCPMember		  
Income of UCP, Inc. and UCP, LLC attributable to noncontrolling interest   (1,757)us-gaap_NetIncomeLossAttributableToNoncontrollingInterest
/ dei_LegalEntityAxis
= pico_UCPMember		  
Other equity transactions   1,246pico_NoncontrollingInterestOtherequityTransactions
/ dei_LegalEntityAxis
= pico_UCPMember		  
Ending balance of noncontrolling interest at December 31, 2013   $ 90,238us-gaap_MinorityInterest
/ dei_LegalEntityAxis
= pico_UCPMember