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Commitments and Contingencies (Details)
1 Months Ended 12 Months Ended
Mar. 19, 2012
complaint
Nov. 10, 2009
defendant
Feb. 28, 2015
participant
Dec. 31, 2016
USD ($)
a
facility
acre ft
Dec. 31, 2015
USD ($)
acre ft
Dec. 31, 2014
USD ($)
Sep. 30, 2015
Nov. 06, 2013
acre ft
Commitment and Contingencies Disclosure [Line Items]                
Amount paid for water contracts       $ 8,529,000        
Long-term water assets (Volume) | acre ft       51,881 49,018      
Estimated future minimum annual payments       $ 800,000        
Number of community facility districts | facility       2        
Letter of credit period       2 years        
Letter of credit renewal period       2 years        
Annual cost related to letter of credit       $ 161,000 $ 177,000      
Reimbursement proceeds from Communities Facilities District       6,155,000 $ 4,971,000 $ 0    
Special taxes paid       2,585,000        
Number of defendants | defendant   2            
Number of amended complaints | complaint 3              
Standby letter of credit                
Commitment and Contingencies Disclosure [Line Items]                
Letters of credit outstanding amount       4,921,000        
Annual cost related to letter of credit       $ 83,000        
West CFD                
Commitment and Contingencies Disclosure [Line Items]                
Acres of land related to land liens | a       420        
Bond debt sold by TRPFFA       $ 28,620,000        
Additional bond debt authorized to be sold in future       0        
Additional reimbursement funds       $ 0        
East CFD                
Commitment and Contingencies Disclosure [Line Items]                
Acres of land related to land liens | a       1,931        
Bond debt sold by TRPFFA       $ 55,000,000        
Additional bond debt authorized to be sold in future       65,000,000        
Additional reimbursement funds       $ 7,768,000        
DMB Pacific LLC | Transferable water                
Commitment and Contingencies Disclosure [Line Items]                
Long-term water assets (Volume) | acre ft       6,693       6,693
Settled Litigation | Antelope Valley Groundwater Cases                
Commitment and Contingencies Disclosure [Line Items]                
Number of parties settled (more than) | participant     140          
Percent of water used within the adjudication boundary     99.00%          
Tejon-Castac Water District | Kern Water Bank Authority                
Commitment and Contingencies Disclosure [Line Items]                
Percentage of interest rate held             2.00%