Acquisition of Citizens Homes - Real Estate Inventories - Methodology and Significant Input Assumptions (Details) (Real Estate Inventory, Citizens Homes, Inc.)	0 Months Ended
	Apr. 10, 2014
Business Acquisition [Line Items]
Builder profit margin applied (percentage)	20.00%
Minimum
Business Acquisition [Line Items]
Builder profit margin applied (percentage)	18.00%
Home comparable range of base price per square foot	77
Weighted Average
Business Acquisition [Line Items]
Average discount rate applied (percentage)	15.00%
Maximum
Business Acquisition [Line Items]
Builder profit margin applied (percentage)	24.00%
Home comparable range of base price per square foot	118