Basis of Presentation and Significant Accounting Policies - Summary of Changes in Warranty Liability (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Movement in Standard Product Warranty Accrual [Roll Forward]
Warranty liability, beginning of period	$ 13,643	$ 14,174
Warranty provision during period (1)	2,504	1,290
Warranty payments, net of insurance recoveries during period	(4,395)	(2,829)
Warranty charges related to construction services projects	7	80
Warranty liability, end of period	11,759	$ 12,715
RSI Communities
Movement in Standard Product Warranty Accrual [Roll Forward]
Warranty provision during period (1)	$ 600