Commitments and Contingencies (Details)	1 Months Ended	3 Months Ended		12 Months Ended
	Feb. 28, 2015 participant	Mar. 31, 2019 USD ($) a facility acre ft	Jun. 30, 2014	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2013 acre ft	Jun. 03, 2010 a
Loss Contingencies [Line Items]
Amount paid for water contracts		$ 7,038,000
Contract renewal optional term		35 years
Contractual obligation for future water payments		$ 253,040,000
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		$ 111,000			$ 117,000
Special taxes paid					$ 2,570,000
Acres of land transferred | a							20,000
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
Additional reimbursement funds		4,180,000
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				6,693
Scenario, Forecast
Loss Contingencies [Line Items]
Amount paid for water contracts				$ 10,156,000