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Inventory - Recoverability Schedule of Inventory Assets Held for Development, by Reportable Segment (Details) $ in Thousands | 3 Months Ended
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Jun. 30, 2016 USD ($) Community | Jun. 30, 2015 Community
Real Estate Properties [Line Items] |  |
Number of Communities on Watch List | 3 | 0
Undiscounted Cash Flow Analyses Prepared, Number of Communities | 3 |
Undiscounted Cash Flow Analyses Prepared, Pre-analysis Book Value (BV) | $ | $ 48,232 |
Corporate and unallocated |  |
Real Estate Properties [Line Items] |  |
Number of Communities on Watch List | 0 |
Undiscounted Cash Flow Analyses Prepared, Number of Communities | 0 |
Undiscounted Cash Flow Analyses Prepared, Pre-analysis Book Value (BV) | $ | $ 2,794 |
West Segment |  |
Real Estate Properties [Line Items] |  |
Number of Communities on Watch List | 2 |
Undiscounted Cash Flow Analyses Prepared, Number of Communities | 2 |
Undiscounted Cash Flow Analyses Prepared, Pre-analysis Book Value (BV) | $ | $ 22,969 |
Undiscounted Cash Flow Analyses Prepared, Aggregate Undiscounted Cash Flow as a Percentage of Book Value | 124.00% |
East Segment |  |
Real Estate Properties [Line Items] |  |
Number of Communities on Watch List | 1 |
Undiscounted Cash Flow Analyses Prepared, Number of Communities | 1 |
Undiscounted Cash Flow Analyses Prepared, Pre-analysis Book Value (BV) | $ | $ 22,469 |
Undiscounted Cash Flow Analyses Prepared, Aggregate Undiscounted Cash Flow as a Percentage of Book Value | 88.50% |

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