Commitments and Contingencies (Narrative) (Details)	9 Months Ended
	Sep. 30, 2015 USD ($) claim	Dec. 31, 2014 USD ($)
Operating Leased Assets [Line Items]
Loss contingency accruals	$ 0	$ 0
Loss Contingency, Pending Claims, Number | claim	0
Minimum
Operating Leased Assets [Line Items]
Estimated accrual amount per home closed	$ 250
Maximum
Operating Leased Assets [Line Items]
Estimated accrual amount per home closed	$ 800