Commitments and Contingencies (Details)	1 Months Ended	3 Months Ended	6 Months Ended	12 Months Ended
	Feb. 28, 2015 participant	Jun. 30, 2014	Jun. 30, 2020 USD ($) a facility	Dec. 31, 2018 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2013 acre ft	Jun. 03, 2010 a
Loss Contingencies [Line Items]
Amount expected to be paid			$ 10,027,000
Payments for water contracts			$ 8,464,000
Contract renewal optional term			35 years
Contractual obligation for future water payments			$ 260,601,000
Estimated future payments			$ 800,000
Incentive fee on contract termination, measurement period from entitlement achievement date		5 years
Number of community facility districts | facility			2
Letter of credit period			2 years
Letter of credit renewal period			2 years
Annual cost related to the letter of credit			$ 218,000		$ 239,000
Special taxes paid				$ 2,598,000
Antelope Valley Groundwater Cases | Settled Litigation
Loss Contingencies [Line Items]
Number of parties in agreement for settlement | participant	140
Percentage of current water usage with the adjudication boundary (more than)	99.00%
West CFD
Loss Contingencies [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
Loss Contingencies [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
Standby letter of credit
Loss Contingencies [Line Items]
Letters of credit outstanding amount			4,468,000
Annual cost related to the letter of credit			$ 68,000
DMB
Loss Contingencies [Line Items]
Contract renewal optional term			35 years
DMB | Transferable water
Loss Contingencies [Line Items]
Long-term water assets (volume) | acre ft						6,693
KCWA
Loss Contingencies [Line Items]
Acres of land transferred | a							20,000