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Inventory - Recoverability Schedule of Inventory assets Held for Development, by Reportable Segment (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended
--- | ---
Jun. 30, 2012 Communities | Jun. 30, 2011 Communities
Real Estate Properties [Line Items] |  |
Number of Communities on Watch List | 12 | 13
Undiscounted Cash Flow Analysis - Number of Communities | 3 | 7
Undiscounted Cash Flow Analysis - Pre-analysis Book Value (BV) | $ 17,655 | $ 21,633
Undiscounted Cash Flow Analysis - Aggregate Undiscounted Cash Flow as a % of BV | 72.40% | 81.60%
West Segment |  |
Real Estate Properties [Line Items] |  |
Number of Communities on Watch List | 5 | 8
Undiscounted Cash Flow Analysis - Number of Communities | 1 | 4
Undiscounted Cash Flow Analysis - Pre-analysis Book Value (BV) | 6,196 | 5,079
Undiscounted Cash Flow Analysis - Aggregate Undiscounted Cash Flow as a % of BV | 81.30% | 86.50%
East Segment |  |
Real Estate Properties [Line Items] |  |
Number of Communities on Watch List | 4 | 4
Undiscounted Cash Flow Analysis - Number of Communities | 1 | 2
Undiscounted Cash Flow Analysis - Pre-analysis Book Value (BV) | 7,144 | 9,731
Undiscounted Cash Flow Analysis - Aggregate Undiscounted Cash Flow as a % of BV | 57.10% | 96.50%
Southeast Segment |  |
Real Estate Properties [Line Items] |  |
Number of Communities on Watch List | 3 | 1
Undiscounted Cash Flow Analysis - Number of Communities | 1 | 1
Undiscounted Cash Flow Analysis - Pre-analysis Book Value (BV) | 3,087 | 5,259
Undiscounted Cash Flow Analysis - Aggregate Undiscounted Cash Flow as a % of BV | 79.00% | 44.00%
Unallocated & Other |  |
Real Estate Properties [Line Items] |  |
Number of Communities on Watch List | 0 | 0
Undiscounted Cash Flow Analysis - Number of Communities | 0 | 0
Undiscounted Cash Flow Analysis - Pre-analysis Book Value (BV) | $ 1,228 | $ 1,564

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