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Inventory And Land Held for Sale (Narrative) (Details) (USD $) | 3 Months Ended | 12 Months Ended
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Dec. 31, 2011 | Sep. 30, 2011 | Jun. 30, 2011 | Mar. 31, 2011 | Dec. 31, 2010 | Sep. 30, 2010 | Jun. 30, 2010 | Mar. 31, 2010 | Dec. 31, 2011 | Dec. 31, 2010 | Dec. 31, 2009
Inventory Disclosure [Abstract] |  |  |  |  |  |  |  |  |  |  |
Capitalized interest related to inventory impairments expensed to cost of revenues |  |  |  |  |  |  |  |  | $ 5,400,000 | $ 27,600,000 | $ 68,200,000
Homebuilding interest directly expensed due to active inventory exceeding debt levels |  |  |  |  |  |  |  |  |  | 1,500,000 |
Number of Communities Assessed for Impairment |  |  |  |  |  |  |  |  | 100 |  |
Discount Rate for Fair Value Determination Minimum |  |  |  |  |  |  |  |  | 12.00% |  |
Discount Rate for Fair Value Determination Maximum |  |  |  |  |  |  |  |  | 17.00% |  |
Discount Rate For Fair Value Determination Aggregate Average |  |  |  |  |  |  |  |  | 13.00% |  |
Write-off of deposits and pre-acquisition costs | 3,400,000 | 2,300,000 | 3,700,000 | 600,000 | 1,600,000 | 1,100,000 | 2,300,000 | 500,000 | 10,002,000 | 5,594,000 | 54,256,000
Net realizable value adjustments - land held for sale | $ 9,900,000 | $ 100,000 | $ (200,000) | $ 0 | $ 38,100,000 | $ 600,000 | $ (200,000) | $ 600,000 | $ 9,844,000 | $ 39,128,000 | $ 113,737,000

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