Unconsolidated Joint Ventures - Income Statement (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Schedule of Equity Method Investments [Line Items]
Revenues		$ 181,623	$ 147,447	$ 233,219
Cost of sales and expenses		(209,527)	(147,976)	(207,028)
Net income (loss) of unconsolidated joint ventures		(27,904)	(529)	26,191
Equity in net income of unconsolidated joint ventures reflected in the accompanying consolidated statements of operations		(19,653)	866	7,691
Russell Ranch [Member]
Schedule of Equity Method Investments [Line Items]
Revenues		24,632	0	0
Land sales		24,510	0	0
Inventory impairments		28,776	0	0
Gross Margin		(28,654)	0	0
Expenses		(1,149)	(920)	(361)
Net loss		(29,803)	(920)	(361)
Equity in net income of unconsolidated joint ventures reflected in the accompanying consolidated statements of operations	[1]	$ (20,219)	$ (372)	$ (264)

[1] (1) Balance represents equity in net income (loss) of unconsolidated joint ventures included in the statements of operations related to the Company's investment in the Russell Ranch joint venture. The balance may differ from the amount of profit or loss allocated to the Company as reflected in Russell Ranch's financial records primarily due to the other-than-temporary impairment charge taken to the Company's interest in the joint venture and profit deferral from lot sales from Russell Ranch to the Company