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Segment Information (Valuation Adjustments and Write-Offs by Segment) (Details) (USD $)
In Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2011
Jun. 30, 2010
Jun. 30, 2011
Jun. 30, 2010
Land and community valuation adjustments $ 3,300 $ 25,546 $ 3,403 $ 30,083
Net realizable value adjustments - land held for sale (249) (184) (249) 380
Write-off of deposits and pre-acquisition costs 3,709 2,309 4,332 2,852
Impairments of investments in unconsolidated joint ventures       1,908
Total valuation adjustments and write-offs 6,760 27,671 7,486 35,223
East [Member]
        
Land and community valuation adjustments 228 477 269 477
Write-off of deposits and pre-acquisition costs 1,723 178 2,191 215
Gulf Coast [Member]
        
Land and community valuation adjustments   5,276   8,027
Net realizable value adjustments - land held for sale   (184)   321
Write-off of deposits and pre-acquisition costs 166 21 179 495
West [Member]
        
Land and community valuation adjustments 1,818 14,601 1,818 15,368
Net realizable value adjustments - land held for sale (249)   (249) 59
Write-off of deposits and pre-acquisition costs 1,820 2,110 1,962 2,142
Impairments of investments in unconsolidated joint ventures       1,908
Other Homebuilding [Member]
        
Land and community valuation adjustments $ 1,254 [1] $ 5,192 [1] $ 1,316 [1] $ 6,211 [1]
[1] Primarily write-offs of capitalized interest related to land and community valuation adjustments.