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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 |

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