Basis of Presentation and Significant Accounting Policies - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Class of Stock [Line Items]
Percentage of home sale price reserved	1.00%
Additional construction fee compensation	$ 1.9	$ 3.9	$ 4.2
Minimum
Class of Stock [Line Items]
Percentage of revenue generated by contractual services	3.00%
Maximum
Class of Stock [Line Items]
Percentage of revenue generated by contractual services	5.00%